JPH02307463A - Air bubble generating bathtub - Google Patents

Abstract

PURPOSE:To dispense with a throttle valve and to prevent power loss by interposing an inverter alterable in the output frequency controlled by a control part between the motor of a recirculation pump and a motor to make the number of rotations of the recirculation pump controllable. CONSTITUTION:An inverter E is interposed between a pump driving motor M and an output interface 51 and the inverter E rectifies the single phase AC 100V from a power supply E1 through a rectifier E2 and inputs the rectified voltage to a switching element E3 and the switching element E3 is turned ON/ OFF by the trigger pulse from the output interface 51 to output three-phase AC power to a pump driving motor M. By controlling the number of rotations of a recirculation pump P by changing the output frequency of the inverter E, the alteration of the number of rotations of the recirculation pump P can be performed smoothly and certainly and a bath hot water jet form like a wave can be taken and freezing preventing operation can be performed by rotating the recirculation pump at a low speed at a cold time and a throttle valve is not used in order to lower emission pressure and power loss can be prevented.

Description

[Detailed description of the invention] (b) Industrial application field The present invention relates to a bubble generating bathtub.

(b) Conventional technology Conventionally, as a basic form of a bubble-generating bathtub, Japanese Patent Application Laid-Open No. 59-1
As described in Publication No. 35058, a bath circulation flow path consisting of a bath water suction pipe and a bath water blast pipe is interposed between the bathtub body and a circulation pump installed outside the bathtub body. Some bathtub transport vibrators have an air intake part in the middle.

With this configuration, the circulation pump sucks the bath water inside the bathtub body through the bath water suction vibrator, and the circulation pump causes the bath water to pass through the bath water filling pipe and squirt it into the bathtub body from the discharge part of the pipe. At this time, the ejected bath water is mixed with air taken in from the air intake part using the negative pressure generated by the bath water ejection, so that the bath water mixed with bubbles can be ejected.

In addition, the bubble generating temperature tank having the basic configuration as described above is equipped with a control valve that adjusts the amount of air sucked in the middle of the air suction pipe connected to the air intake section. By adjusting the amount and changing the ejection pressure of the bath mixed with bubbles, it is possible to enjoy a jet stream with a desired ejection pressure.

In addition, Japanese Patent Application Laid-Open No. 83-3881 discloses that fine bubbles,
A bubble-generating bathtub is described in which fine bubbles can be selectively or mixed with ordinary bubbles having a larger bubble diameter and ejected together with the bath water, so that not only healthy people but also elderly and sick people can take a bath.

(c) Problems to be Solved by the Invention However, the bubble-generating bathtub described in JP-A-59-135058 can only change the ejection pressure of bath water by adjusting the amount of suction air; Kaisho 63-3
The bubble generating bathtub described in Japanese Patent No. 881 can only select the ejection state of fine bubbles and normal bubbles.

In this way, both of them can only take a simple jet form of bath water, and it is not possible to obtain various changes in the jet form of bath water.

In addition, since it is not possible to control the amount and pressure of hot water discharged from the circulation pump, there are the following drawbacks.

■ Since the rotation speed of the circulation pump cannot be changed and the same rotation speed is kept constant, the discharge pressure of the bath water cannot be lowered. This will result in a loss of power.

(2) The jetting pressure is controlled only by the amount of suction air, and it is not possible to take a jetting form that increases the jetting pressure in a bath, for example, while reducing the amount of mixed air.

Therefore, it is not possible to take the following varied bath eruption forms.

■By periodically changing the rotation speed of the circulation pump, the jetting pressure and jetting amount of bath water can be changed periodically to create a spouting pattern that gives a wave-like feel to the bather. Can not.

In cold weather, antifreeze operation, which prevents pipes from freezing by causing the circulation pump to operate at low speed, is not possible.

■ Soft start of the circulation pump to prevent air leakage cannot be performed.

(d) Means for Solving the Problems In the present invention, a bath circulation flow consisting of a bath water suction channel and a bath water bullet delivery channel is provided between the bathtub body and a circulation pump installed outside the bathtub body. A plurality of ends of the bath water bullet feeding channel are opened into the bathtub body, and an air intake part is connected to the bath water forced feeding channel, so that the bath water mixed with bubbles is delivered to the bathroom body. In a bubble-generating bathtub configured to allow bubbles to be ejected inward, an inverter that can change the output frequency controlled by the control unit is interposed between the circulation pump motor and the power supply, making it possible to control the rotational speed of the circulation pump. It is an object of the present invention to provide a bubble-generating bathtub which is characterized in that it is possible to control the rotational speed of a circulation pump.

(E) Effects and Effects According to the present invention, the rotation speed of the circulation pump can be controlled by the output frequency of the inverter controlled by the control section, so the circulation pump can be controlled based on the program or sequence incorporated in the control section. By changing the number of rotations of the bath water, the above-mentioned wave-like shape can be created, and in cold weather, the circulation pump can be rotated at a low speed to prevent freezing by circulating the hot water through pipes, etc. at a low speed. Furthermore, when the circulation pump is started, the rotational speed of the pump is gradually increased to discharge the air in the pump, thereby preventing aerodynamics.

Further, since the discharge pressure and discharge amount of the circulation pump can be controlled by the control unit via the inverter, no throttle valve is required, and power loss can be prevented.

(f) Example The bubble-generating bathtub according to the present invention will be specifically explained in accordance with the following items with reference to the accompanying drawings.

[I] Overall description of the bubble generating bathtub [111 Explanation of the configuration of each part (II-1) Explanation of the configuration of the jet nozzle (II-2)
Explanation of the configuration of the air intake section (n-3) Explanation of the circulation pump [11-4] Explanation of the filter [■-5] Explanation of the control section (description of the ff-63 operation panel section [■-7]) Remote controller Explanation of [I[I]
Description of jet flow form (III-1) Mild blow (m-2) Shiatsu blow (III-3) Pulse blow [lll-4) 'Wave blow (m-5) Cycle blow Cm-6) Program blow [IV] Bubbles Explanation of the operation of the generating bathtub (Explanation of the operating procedure based on the IV-11 flowchart 1: IV-2) Explanation of the conditions for starting the blow operation (IV-
3) Explanation of state transition of jet flow form (IV-4)
Explanation of state transition of bath water spout position (IV-5) Explanation of state transition of strength level in blow operation (rV-6) Explanation of priority order of main operation specifications (TV-7) Control timing of opening/closing operation and changing rotational speed of the circulation pump [blank below] [I] Overall description of the bubble-generating bathtub First, the overall structure of the bubble-generating bathtub according to the present invention will be described.

(A) shown in FIGS. 1 and 2 is a bubble-generating bathtub according to the present invention, and the bubble-generating bathtub (A) includes front and rear walls of a bathtub body (1) formed in a box shape with an opening at the top; On the left and right side walls,
A total of six foot, dorsal, and ventral jet nozzles (2) (2) (3) (3) (4) (4) each with automatic variable jet volume are provided.

The bathtub body (1) has a flange-like edge (la) of a constant width formed on the periphery, and an air intake portion (5) on the edge (la).
), and a vertically elongated four part (lb) (lb) with an approximately ■-shaped cross section is formed approximately at the center of the left and right side walls, and the same concave part ([b) (
1b) Sloped surface (1°b) on the side facing the rear wall (dorsal side) (
1'b), the ventral side jet nozzles (4) (4) are attached toward the center of the rear wall.

Moreover, the ventral side jet nozzle (4) is installed at a higher position than the other leg side and dorsal side jet nozzles <2) (3) to ensure that the bath water reaches the ventral side, chest side, and other parts of the human body. I am trying to make it possible to apply it to.

In addition, a pump protection case (9) is arranged outside the bubble generating bathtub (A), and inside the case (9),
Circulation pump (P) that circulates the bath and the same pump (P)
A filter (43) that filters the bath water circulated by ), a motor (H2) for opening/closing the valve body for controlling the amount of air bubbles, and a control section (C) for controlling the drive of the electric three-way valve (45).

Moreover, a bath circulation channel (D) is interposed between the circulation pump (P) and the bubble generating bathtub (^).

That is, the bath circulation flow path (D) is connected to the bubble-generating bathtub (A).
A bath water suction vibrator (10) for sending bath water from the circulation pump (P) to the bathtub (A)
It consists of a bath water bomb delivery vibrator (11) for sending water to the bath.

The bath water suction pipe (10) is connected to the bathtub body (1).
One end is connected to the suction port (1ffl) opened at the bottom of the pump, and the other end is connected to the water suction port of the circulation pump (P) so that the bath water is sucked into the circulation pump (P). The pipe (11) has one end communicating with the water outlet of the circulation pump (P), and the other end communicating with the jet nozzles (2), (3), and (4), respectively.

Further, the above-mentioned suction port (1+a) is provided at a lower position than the foot side/dorsal side jet nozzle (2) (It).

Furthermore, as shown in FIG. 3, an inverter (E) is interposed between the pump drive motor (M) that drives the circulation pump (P) and the control section (C). )
By controlling the rotation speed of the circulation pump (P) by changing the output frequency of the circulation pump (P), the rotation speed of the circulation pump (P) can be changed smoothly and reliably.

In addition, as shown in Figure 3, a pressure detection sensor (48) is installed in the middle of the bathtub pipe (11) to detect the pressure of the bathtub being pumped through the pipe (11). The detection results from the sensor (48) are sent to the control unit (C), which controls each ejection nozzle (2) (3) (4).
The jet pressure of the bath jet from the pump drive motor (M) and each jet nozzle (2) (3) (,
4) is controlled by changing the opening/closing amount.

Moreover, the pressure detection sensor (48) is also used as a water level detection sensor for detecting the amount of hot water filled in the bathtub body (1).

By using such a water level detection sensor,
When the water level in the bath is below a certain level, the control unit (C) is configured not to start the blow operation, antifreeze operation, filtration cleaning operation, and automatic filter cleaning operation, which will be described later.

In addition, as shown in Figure 3, a bath water temperature detection sensor (T) is installed in the middle of the bath water filling vibrator (11) to detect the temperature of the bath water being pumped through the vibrator (11). After installation, the detection results from the sensor (T) are sent to the control unit (C), which controls the pump drive motor (M) and each jet nozzle (2), (3), and (4). That's what I do.

By using such a bath water temperature detection sensor (T), the control unit (
Each operation/stop of blowing operation, anti-freezing operation, filtration cleaning operation, and automatic filter cleaning operation, which will be described later in accordance with C), is performed.

In this way, the blow operation, antifreeze operation, filtration cleaning operation, and automatic filter cleaning operation, which will be described later by the control unit (C), are started when the bath water does not reach a certain water level and temperature. I'm trying not to.

In addition, the above-mentioned air intake part (5) and each jet nozzle (2)
As shown in Figures 1 and 4, an intake pipe (12) is interposed between (3) and <4), and the intake pipe (12) is connected to each jet nozzle from the middle part. (2)(3)(
4) Branch vibe (12a) (12b) (1
2c) and each branch pipe (12a) (12b)
(12c) to each jet nozzle (2) (
3) It is connected to (4).

Then, using the negative pressure generated when the bath water is spouted from each spout nozzle (2), (3), and (4), the air taken in from the air intake part (5) is transferred to each branch vibe ( 12a) (12b) <12c) through the inside and into each of the jet nozzles (2), (3), and (4), and from each jet nozzle (2), (3), and (4) into the bathtub body (1). The bath is made to be able to squirt.

In addition, as shown in FIGS. 1 and 3, an operation panel section (8) is provided near the bathtub body <1), and the operation panel section (6) allows the bubble-generating bathtub (^ ) can be operated.

The operation panel section (6) will be described later.

(aob) is an infrared receiving section provided in the operation panel section (6), which receives infrared rays emitted from a remote controller (3o) to be described later.

(jOc) is a reception indicator lamp provided on the operation panel section (6). Further, in FIG. 1, (7) is an outlet connected to a power source.

In the above configuration, the gist of the present invention is to provide foot side, dorsal side and ventral side jet nozzles (2) (3) with automatic variable jet volume.
The opening/closing amount of (4) and the rotation speed of the circulation pump (P) are configured to be controllable through the control unit (C), allowing various types of jet flow (mild blow, acupressure blow,
By making it possible to obtain changes in (pulse blow, wave blow, cycle blow, and program blow), it is possible to sufficiently respond to the diverse tastes of bathers, and in addition to making it possible to obtain changes in the flow rate (pulse blow, wave blow, cycle blow, and program blow). By controlling the rotational speed of the pump (P), the jet strength can be changed, and furthermore, various jet points can be selected, so that the bather can adjust the desired effect on his or her body. The purpose is to apply a jet stream of desired strength to the location where the pine surge effect by the jet stream can be sufficiently obtained.

In particular, in this embodiment, the rotation speed of the circulation pump (P) is controlled by the inverter (E), so that various types of jet flow forms and jet flow strengths can be smoothly changed. .

[Margin below]

[11] Explanation of the configuration of each part (n-13 Explanation of the configuration of the jet nozzle The foot side, dorsal side, and ventral side jet nozzles (2), (3), and (4) automatically adjust the jet volume and jet pressure in the bath, respectively. The structure of the foot-side jet nozzle (2) will be described below with reference to FIGS. 5 to 8.

That is, the foot side spout nozzle (2) has a cylindrical nozzle casing (20) cantilevered on the outside of the bathtub body (1) at the foot side spout nozzle connection port (1,g) of the bathtub body (1). A jet flow forming part (50) that forms a jet flow from the bath water flowing from the bath water bullet feed vibe (11) into the nozzle casing (20), and an air intake part (5) that are connected to each other in communication with each other. An air mixing section (70) communicates with the intake pipe (12) and mixes air into the bath water spouted from the jet flow forming section (5o).
), and a throat part (60) that determines the spouting direction of the bathwater mixed with air bubbles spouted from the air mixing part (70) into the bathtub body (1).

As shown in FIG. 5, the nozzle casing (20) has its front end connected in a watertight manner to the circular foot-side jet nozzle connection port (1g) opened at the lower part of the front wall of the bathtub body (1), and the rear end connected in a watertight manner. The ends extend rearward approximately horizontally.

(1h) is a ring-shaped gasket (11) fitted around the periphery of the leg side jet nozzle connection port (Ig).
h) Ring-shaped female screw parts (11) (20
a) is an outer peripheral male screw portion formed on the outer circumferential surface of the front end of the nozzle casing (20); (2 (lc) is a bullet feed vibration connecting portion that connects and connects the hot water bullet feed vibrator (II) in a detachable manner; be.

(n) indicates the bath water inflow direction.

In addition, (26) covers the front end of the nozzle casing (20) and the ring-shaped female screw part (11) with the front end part (26b), and fixes the throat fixing member (25), which will be described later, at the rear end. It is a cosmetic cover with a cylindrical overall shape.
A female threaded portion (26a) is formed on the outer peripheral surface, and a spaced threaded portion (26a) is formed on the outer peripheral surface.
8a) is removably screwed onto an inner circumferential male threaded portion (20j) formed on the inner circumferential surface of the front end portion of the nozzle casing (20).

Further, the throat part (60) is composed of a throat (24), a throat fixing member (25) that supports the throat (24) in an adjustable manner, and a front part of the valve seat forming cylinder (21). are doing. (24a) is a throat base whose outer peripheral surface is formed into a spherical shape, (25a) and (25b) are the inner peripheral surface and valve of a throat fixing member (25) to slidably support the throat base (24a). The throat support surfaces (24b) formed on the inner circumferential surface of the seat-forming cylinder (21) are cylindrical throat tips whose outer diameters are smaller than the throat base (24a); (24b)
can be manually adjusted to swing in any direction, up, down, left or right, centering on the base (24a).

Furthermore, a certain amount of sliding resistance acts on the base (24a) of the throat (24) from the throat support surfaces (25a) and (21b), making it possible to stop the throat (24) at any swing angle. .

(S) is a throat swing operation space formed between the outer peripheral surface of the throat tip (24b) and the inner peripheral surface of the decorative cover (2B).

In addition, the throat fixing member (25) is fitted to the front inner peripheral surface of the nozzle casing (20) through a positioning groove, and the front face (25b) is attached to the rear end of the decorative cover (2B) with a fixing ring ( 28), and the front outer circumferential surface of the base (24a) of the throat (24) is slidably supported by a throat support surface (25a) formed on the inner circumferential surface.

Further, the valve seat forming cylinder (21) is connected to the nozzle casing (2
0) into the central part of the nozzle casing (20) through the front end opening, and the rear end surface is located near the bullet-feeding vibe connecting part (20c), and is formed on the front outer circumferential surface. The protruding stepped portion (21b) is attached to the nozzle casing (20).
It engages with a concave step (201) formed on the inner circumferential surface of to restrict rearward sliding.

Then, the throat base (24a) is attached to the throat support surface (21b) formed on the front inner peripheral surface of the valve seat forming cylinder (21).
) is fitted, and the forward sliding of the valve seat forming cylinder (21) is restricted by the base (24a) of the throat, which is restricted from sliding forward by the throat fixing member (25). .

The jet forming section (50) also includes a jet forming channel (2) inside.
a valve seat (21a) forming a valve seat (21a) forming a valve seat (21a), and a jet amount adjustment valve that approaches and separates from the valve seat (21a) to adjust the opening/closing amount (adjusts the jet amount and jet pressure) of the jet flow forming channel (27). body (22), a nozzle valve body opening/closing motor (old) that opens and closes the jetting amount regulating valve body (22), and the same motor (M
1) and a rear wall forming plate (29) that supports the rear wall forming plate (29).

In addition, in FIGS. 6 and 7, (21d) is an air inflow passage formed in an annular shape along the outer peripheral surface of the valve seat forming cylinder (21), (21e) and (21f') are the air inflow passages. (21d) on the intake vibe connection part (20b) side and the same connection part (20b
) and the air inlets (2io) (2H) are provided to communicate with the inside of the valve seat forming cylinder (21) and the intake pipe connection part (20b) through the air inlets (2io) (2H). Air mixture part (70) in the valve seat forming cylinder (21)
is formed. (11) indicates the air inflow direction.

The nozzle valve body opening/closing motor (Ml) is a stepping motor that operates step by step for each input pulse, and as shown in Fig. 8, a cylindrical motor casing is attached to the rear wall forming plate (29). (23) is removably attached, and a cylindrical coil (23) is attached inside the motor casing (23).
3a) is provided coaxially with the nozzle casing (20), and a cylindrical magnet (23b) is provided within the same coil (23a).
The magnet (23b) can be rotated in forward and reverse directions by energizing the coil (21a), and a cylindrical rotor nut (23e) is installed concentrically and integrally within the magnet (23b). , same rotanatsut (23c
) is rotatably mounted on a shaft by a bearing (23e), and a valve body (
A valve body support rod (23d) with attached valve body (22) is inserted through the valve body so as to be slidable forward and backward.

A spiral rotor nut side ball groove (23k) is formed on the inner circumferential surface of the rotor nut (23c), while a spiral rotor nut side ball groove (23k) is formed on the outer circumferential surface of the valve body support rod (28d) in the same direction as the rotor nut side ball groove (23k). A spiral rod-side ball groove (23m) is formed, and a plurality of balls (28n) are interposed between the opposing rotor nut side ball groove (23k) and wood side ball groove (23m) so as to be freely transferable. .

(23g) is a rotation regulating piece that prevents the valve body support rod (23d) from rotating with the rotor nut (23c).

In addition, in this embodiment, in order to control the position of the injection amount regulating valve body (22) without error, the valve body (22) is pressed against the valve seat (21a) which is in the fully closed position as the reference position. A method is adopted in which the control unit (C
), the valve body position is controlled by calculating the number of pulses (rotation angle) from the reference position of the nozzle valve body opening/closing motor (old).

Further, at the rear end of the valve body support rod (23d), a valve body ( A valve body position detection sensor (23r>) is installed to detect the opening/closing amount (adjusts the jetting amount and jetting pressure) of the valve body position Hall element (22).
31) and a valve body position detection magnet (23j) attached to the rear end position of the valve body support rod (23d) facing the valve body position Hall element (231). (
23h) is a cord connected to the coil (23a) and the valve body position detection sensor (23r).

The above-mentioned valve body position detection sensor (23r) is connected between the valve body position Hall element (231) and the valve body position detection magnet (23D), which changes according to the forward and backward movement of the valve body support rod (23d). The change in magnetic force is converted into an electrical change and sent to the control section (C) to determine whether the valve body position is normal.

As a result, if the result obtained by calculating the number of pulses and the detection result of the valve body position detection sensor (231') are different, the operation of the valve body (22) for regulating the amount of ejection is stopped. At the same time, it also provides a warning that there is a malfunction.

In addition to the above configuration, a valve body position detection sensor (
23[') electrically detects changes in the magnetic force between the valve body position Hall element (231) and the valve body position detection magnet (23j), which change according to the forward and backward movements of the valve body support rod (23d). It is also possible to convert the change into a change and send it to the control unit (C) to detect a reference position (for example, a completely closed position).

With this configuration, the motor for opening and closing the valve body for the nozzle (
Ml) energizes the coil (23a) and magnets) (
The rotor nut (23b) is rotated together with the rotor nut (23c), and the valve body support rod (23d) is moved forward and backward in conjunction with the rotation of the rotor nut (23b).
The spouting amount adjusting valve body (22) attached to the tip of the tub (3d) is brought into contact with and separating from the valve seat (21a), so that the spouting amount and jetting pressure of bath water into the bathtub body (1) can be finely adjusted. I have to.

In addition, the motor (Ml) for opening and closing the valve body for the nozzle may be one that can move the valve body (22) for adjusting the jet amount back and forth steplessly over a minute distance to finely adjust the jet amount and jet pressure in the bath. Alternatively, a piezoelectric actuator can also be used.

Further, (40) is a bellows-shaped waterproof cover (20+n) integrally molded with the ejection amount regulating valve body (22), which is an air breathing port.

Further, the rear wall of the nozzle casing (20) described above is a rear wall forming plate (29) that is separate from the nozzle casing (20).
), and the rear wall forming plate (29) has a disc shape with approximately the same diameter as the rear end inner diameter of the nozzle casing (20), and is attached from the front end opening of the nozzle casing (20). It is fitted and installed in a removable manner.

(20g) is the rear wall forming plate (29), and the rear wall forming plate regulating piece (21g) formed on the inner circumferential surface of the rear end of the nozzle casing (20) is the rear wall forming plate regulating piece (21g) of the valve seat forming cylinder (21). The step portion (29a) for regulating rear wall advancement formed at the rear end is the rear wall forming plate (
29) is a gasket provided on the circumferential surface.

Moreover, the outer diameter of the motor casing (23) described above is
It is formed to have a smaller diameter than the inner diameter of the rear end opening (20k) of the nozzle casing (20) formed by the inner peripheral surface of the rear wall forming plate (29).

The groove bottom as described above allows the foot side jet nozzle (2) to be disassembled from inside the bathtub body (1).

In addition, the dorsal and ventral other jet nozzles (3) (°4) are configured in the same manner as the jet nozzle (2) above, so that the amount of water jetted in the bathtub and the pressure in which the bath water is spouted can be adjusted. There is.

Then, the six foot, dorsal, and ventral jet nozzles mentioned above (
2) The usage patterns of (3) and (4) will be explained later with reference to Figs. 13 and 14, but when using all six nozzles to eject bath water at the same time, it is necessary to use one of the ejection nozzles. One or two types may be selected and used, and each usage pattern can be selected by switching to the jet nozzle usage pattern on the operation panel section (6) or remote controller (30). .

Next, initial setting (adjustment) of the nozzle valve opening/closing motor (Ml) for each jet nozzle (2), (3), and (4)
I will explain about it.

When the power is turned on (when the plug is inserted), ■ The nozzle valve element opening/closing operation motor (Ml) is set to a normal voltage (for example, 12V) 50pps l: The valve element (22) for controlling the ejection amount is closed for 0.5 seconds. Drive in the direction in which the valve operates.

■ Drive the nozzle valve body opening/closing motor (old) at a low voltage (e.g. 4V) 20[1pps] in the direction of closing for a certain period of time (e.g. 2 seconds) and step out at the fully closed position. and initialize it.

■ Drive the motor (Ml) for opening and closing the nozzle valve body at a normal voltage (for example, L2V) 2GOpps,
The ejection amount adjusting valve body (22) is moved back by 6III11 from the initialized fully closed position.

As mentioned above, the motor for opening and closing the valve body for the nozzle (Ml
) is made to perform the above-mentioned drives ① to ②, thereby making it possible to perform initial setting (:A adjustment).

Note that the above numerical values are examples and are not limited to these.

The following effects are produced by the initial setting (adjustment) of the nozzle valve body opening/closing operation motor (old).

a) By driving in the above (■), the oil clinging to the seal part is peeled off and the nozzle valve opening/closing operation motor (Ml)
The subsequent smooth operation can be ensured.

b) Due to the drive described in (■) above, the valve body (22) for regulating the ejection amount
can be brought into contact with the valve body (21a) with a relatively low pressing force, and damage to the valve body (22) and the valve seat (21a) can be prevented.

C) Due to the drive described in (■) above, the valve body (22) for adjusting the ejection amount
The valve is set back 61 degrees from the fully closed position to open the valve, so that bath water can be smoothly supplied and drained when filling with hot water or draining water.

In addition, at the start of the blowing operation, which will be described later, the nozzle valve element opening/closing motor (Ml) is driven as described above, thereby initializing the jetting amount adjusting valve element (22). The position of the valve body (22) is corrected so that a mild blow as an initial setting blow can be smoothly performed.

[■-2] Explanation of the configuration of the air intake part The configuration of the air intake section (5) will be described below.

The air intake part (5) is attached to the edge (la) of the bathtub body (1), as shown in FIGS. A rectangular box-shaped air intake body (80) and an air intake port (82) on the outside.
a), a lid (82) that covers the top opening of the air intake main body (80), and an intake pipe connection part (83) that is communicatively connected to the center of the bottom surface of the air intake main body (80); A communication path (86) provided in the intake vibe connection portion (83) and connecting the intake vibe connection portion (83) and the air intake body (80).
It consists of a bubble ffi control valve (87) that opens and closes.

Then, one end of the intake vibrator (12) (12) is connected to the front and rear walls of the intake pipe connecting portion (83), respectively.
Air intake body (80) through air intake (82a)
A certain amount of the air taken in is sent to each intake pipe (12) (12) through the intake pipe connection part (83) by the air bubble amount adjustment valve (87), and the air is sent to each intake pipe (12) (
12) so that a certain amount of air can be supplied to each of the jet nozzles (2), (1), and (4). In Figure 4, (8
4) is a reactance type silencer, and (85) is a check valve, which prevents the bath water from flowing back into the intake pipe (12).

The air bubble amount adjusting valve (87) has a cylindrical valve body (88) whose upper edge is opened to communicate with the bottom of the air intake body (80).
), a motor (M2) for opening and closing the valve body for controlling air bubbles attached to the bottom (88a) of the valve body (88), a valve body support rod (89) attached to the same motor (M2), and a valve body support rod (89) attached to the same motor (M2). A valve body (9) is attached to the tip of the rod (89) and is movable toward and away from the valve seat (88b) formed on the upper edge of the valve body (88).
0). (88d) is the valve body (88)
This is a communication port provided in the peripheral wall of the

In addition, the valve body opening/closing motor (M2) for adjusting the amount of air bubbles has a linear stepping motor structure similar to the nozzle valve body opening/closing motor (Ml), and can be controlled by a control unit (C) described later. However, in this example,
During the blowing operation, the motor (M2) is not driven to adjust the amount of bubbles using the valve body (90), but the blowing operation is performed at a preset amount of bubbles.

In addition, a silencer (
92) is made of a porous sintered plastic body (for example, a sintered polyethylene body, a sintered polypropylene body, etc.), and is formed into a cylindrical shape using a sound absorbing material having a sound absorbing function and an air purifying function. (93) is a silencer support plate (93) that supports a plurality of silencers (92) horizontally suspended in the lower part of the air intake main body (80), and each silencer (93)
2) the lower end opening (92a) of the silencer support plate (9
3), each of which corresponds to and communicates with a plurality of communication holes (94) provided in 3). (r) indicates the air inflow direction.

Description of Cll-33 circulation pump The configuration of the circulation pump will be explained below.

As shown in FIG. 11, the circulation pump (P) has a flow path (32d) in the pump casing (32) that interconnects the upper impeller chamber (33) and the lower impeller chamber (34).
The lower impeller chamber (34)
is communicated with the bath water suction pipe (lO) via the bath water suction passage (32a) provided on the lower side of the pump casing (32), and the bath water provided on the other side of the lower part of the pump casing (32). A filtration machine (43), which will be described later, is connected to the bath water filling bibuk 11) via a bullet feed path (32b), and is connected to a filter (43), which will be described later, through a filter bullet feed path (32c) provided on the negative side of the upper impeller chamber (33). It communicates with one end of the lead-in pipe (41). (32e) is the water inlet, (32r) is the lower water outlet,
(32g) is the upper spout, (zl) is the circulation flow direction, (
Z2) indicates the filtration flow direction.

Then, the impeller shaft (35) is supported so as to vertically pass through the central part of the upper and lower impeller chambers (33) (34), and the upper impeller (33) is mounted on the impeller shaft (35).
a) and the lower impeller (34a) were installed coaxially within the upper and lower impeller chambers (33) and (34), respectively, and the impeller shaft (35) was mounted on the pump casing (32) in an integral and watertight manner. Pump drive motor (M)
The drive shaft (39) is interlocked with the drive shaft (39). (36) is a sealing material attached to the impeller shaft (35) to ensure watertightness within the pump casing (32).

Furthermore, as shown in Fig. 12, a filter (43) is connected to the upper impeller chamber (33) of the circulation pump (P) via a lead-in pipe (41) and a return pipe (42). , the upper water spout (32) of the upper impeller chamber (33)
g) through the lead-in pipe (41) connected to the
A part of the bath water sucked into the lower impeller chamber (34) is sent to the filter (43), and the bath water filtered by the filter machine (43) is returned through the pipe (42) and passed through the bath water bullet delivery vibe (
11) The bath water is sent into the bath water and is made to join with the bath water that is forcibly sent into the bath water bullet feed vibe (11) from the lower spout (32r) of the lower impeller chamber (34).

With this configuration, the upper and lower impellers (33a) (34
When a) is rotated, the hot water in the bathtub body (1) is sucked from the bathwater suction pipe (10) through the water suction port (32e) into the bathwater suction path (32a) of the lower impeller chamber (34). From the lower impeller chamber (34) to the hot water bomb feed path (32)
b) The water is forcibly fed into the bathtub body (1) through the lower spout (33a) and further into the bathtub body (11).

At this time, a part of the bath that has flowed into the lower impeller chamber (34) flows into the upper impeller chamber (33) through the communication flow path (32d), passes through the filter pellet feeding path (32c), and passes through the upper impeller chamber (32c). The filtered bath water is sent from the water outlet (33a) through the lead-in pipe (41) to the filter (43), where it is filtered.
11) Sent inside.

In this way, the upper and lower impellers (33a) (34a)
A circulation pump (P) equipped with a bath water circulation flow path (D
) A portion of the bath water circulating through the bath is filtered by a filter (43).

In addition, a pump heater (Ill) is installed around the outer circumference of the circulation pump (P) to prevent freezing.
The bath water bullet feeding vibe (
11) The bath water in the circulation pump (P) can be prevented from freezing by controlling the control unit (C) according to the temperature detection result of the bath in the circulation pump (P).

The pump drive motor (M) is a three-phase induction fan type, and (39a) is a rotor attached to the outer peripheral surface of the drive shaft (39) of the pump drive motor (M).
The rotor (
37) and a fixed magnetic pole installed with the inner and outer sides facing each other, (39c
) is a cooling fan.

Furthermore, an inverter (E) is interposed between the pump drive motor (M) and the output interface (51), and as shown in FIG. 3a, the inverter (E)
Rectifier (E2) for single-phase AC 100V from power supply (El)
The rectified signal is input to six switching elements (E3), and the switching elements (E3) are turned on and off by trigger pulses from the output interface (51).
The three-phase AC power is output to the pump drive motor (M), and the frequency of the output is the same as the frequency of the trigger pulse.

Note that (E4) is a smoothing circuit.

In addition, the rotation speed of the drive motor (M) is controlled by the inverter (E
), the rotation speed of the circulation pump (P) is consequently controlled by the control section (C).

As mentioned above, the rotation speed of the circulation pump <p> is controlled by the control unit (C
), it is possible to obtain the functions and effects described below in the section of explanation of [I [[] jet flow form.

Then, the rotation speed of the pump drive motor (M) is controlled in proportion to the output frequency converted by the inverter (E), and the rotation speed of the circulation pump (P) is controlled by this control, so that each injection The amount, pressure, and time of the bath water sprayed from the nozzles (2), (3), and (4) can be changed according to the above program.

In this way, the circulation pump (
Since the rotation speed of P) can be controlled smoothly and reliably, the following effects are produced.

■By coordinating the change in rotation speed of the circulation pump (P) with the inverter (IE) and the opening/closing operation of each jet nozzle (2), (3), and (4), the jet flow form can be adjusted to the bather's preference. Since it can be changed in various ways depending on the user's needs, it can fully accommodate the diverse tastes of bathers.

■By changing the rotational speed of the circulation pump (P) using the inverter (E), the jet strength can be changed in several steps or steplessly depending on the bather's preference, so It can give you a sense of satisfaction.

■In addition to the opening and closing operations of each jet nozzle (2), (3), and (4), the rotation speed of the circulation pump (P) is controlled by the inverter (E).
), it is possible to change from one jet form to another smoothly and gently, and even change the jet strength of various jet forms smoothly and gently. It does not cause discomfort to people.

■Since the inverter (E) can apply a slow start-up rotation speed to the circulation pump (P), the rapid eruption of water from the bath can cause bathers, especially children and the elderly, to
Accidents such as falling can be prevented from occurring.

■Since the inverter (E) can give a slow startup speed to the circulation pump (1'),
It is possible to prevent the occurrence of a problem in which the circulation pump (P) takes in air and runs idly, and it is possible to ensure smooth spouting of bath water by the circulation pump (P).

■Since the inverter (E) can give a slow and smooth startup speed to the circulation pump (P),
It is possible to reduce the sound of air being discharged from inside the piping, and it is possible to reduce noise.

■When changing the jet strength and jet form by changing the jet amount and jet pressure of bath water as in this example, the rotation speed of the circulation pump (P) is appropriately controlled by the inverter (E). As a result, unnecessary power can be saved, and power saving can be achieved.

- Since the circulation pump (P) can be reversely rotated by the inverter (E), contaminants such as dust in the piping can be discharged.

(Description of II-43 filter The configuration of the filter will be explained below.

As shown in FIG. 12, the filter (43) has an acrylic mesh (43b) stretched in the lower part of the filter body (43a), and a filter material (43c) is provided on the mesh (43b). A baffle (43d) is installed on the inner surface of the earthen wall of the filter body (43a).
) is installed and configured.

One end of the lead-in pipe (41) is connected to the upper end of the filter main body (43a), and the filter main body (43a) is
One end of the return pipe (42) is connected to the lower end of a), and the bath water is directed downward from above the filter body (43a) and passes through the filter material (43c) to filter the bath. I'm trying to do that.

In addition, a filter bar heater (II 2 ) for freezing prevention is provided around the outer periphery of the filter (43), and the heater (H2)
The bath water bullet feeding vibe (
11) It is possible to prevent the bath in the filter (43) from freezing by controlling the control unit (C) according to the temperature detection result of the bath water in the filter.

In addition, an electric three-way valve (45) is provided in the middle of the retraction vibrator (41), a drain pipe (4B) is connected to one end of the electric three-way valve (45), and the electric three-way valve (45) is used to retract the vibrator. The pipe (41) and the drainage vibe (46) can communicate with each other.

Then, the electric three-way valve (45) is switched to connect the retraction vibrator (41) and the drainage vibrator (46), and the upper and lower impellers (3aa) of the circulation pump (P) are connected to each other.
By rotating a), a part of the bath is passed through the return pipe (42) from below to above the filter body (43a) and passes through the filter medium (43c). ) can be cleaned.

Further, the switching operation of the electric three-way valve (45) can be performed by turning on a filter cleaning switch (117) of the operation panel section (6), which will be described later.

(II-5) Description of control section The configuration of the control section will be explained below.

As shown in FIG. 3, the control unit (C) includes a microprocessor (MPU) and a human output interface (50) (
51), a memory (52) consisting of ROM and RAM, and a timer (53).

In the above configuration, the human interface (5
0) includes a valve body position detection sensor (23[') that detects the opening and closing amount of the jet QW3 valve body (22), and a valve reference position detection sensor that detects the opening and closing amount of the bubble amount adjustment valve (87). (9 [), pressure detection sensor (48) that detects the water pressure in the bathtub body (11), bath temperature detection sensor (T) that detects the temperature of the bath water in the bathtub body (1), operation panel an infrared receiving sensor (30b) that receives an infrared drive signal from the unit (6) and the remote controller (30);
are connected.

On the other hand, the output interface (51) includes a clock display section (115) and a bath temperature display section (11B) of the operation panel section (6), which will be described later, a pump drive motor (M), and a nozzle valve opening/closing motor. (old), motor for opening/closing the valve body for adjusting the amount of air bubbles (Ml), pump heater (Il),
l), filter bar heater (+12) and electric three-way valve (4)
5) is connected. In addition, the pump drive motor (M
) is the output interface (
51).

In addition, the memory (52) stores each motor (M) (Ml) (Ml) based on the output signal from each of the above-mentioned sensors and the drive signal from the operation panel section (6) or remote controller (30). A drive sequence program for driving drive units such as the electric three-way valve (45) and the like is stored.

(n-6) Description of operation panel section The operation panel section (6) for manually sending drive output to the control section (C) will be described below with reference to FIG. 13.

The operation panel section (6) is fixedly installed near the bathtub body (1) or on the upper surface of the edge (1a) of the bathtub body (1), and has an operation switch (100) and a plow operation switch. Mild plow switch (101), Shiatsu plow switch (102), Pulse plow switch (
103), a wave plow switch (104), a cycle plow switch (105), a program plow switch (10B), and a bathhouse spout strong/four-side switch (1
07) (108) and the dorsal jet nozzle usage pattern switch (108) which is a switch for switching the jet nozzle usage pattern.
lit), foot side jet nozzle use pattern switch (1
12) , and ventral jet nozzle usage pattern switch (
113), a timer switch (114), a clock display section (115) that also serves as a one-hour timer display section, a bath water temperature display section (tie), and a filter cleaning switch (117).
, a time setting switch (118), an hour setting switch (119), and a minute setting switch (120) for adjusting the time displayed on the clock display section (115).

Then, by turning on the operation switch (100), it is possible to start the plow operation, which will be described later.

In addition, by turning on the filter cleaning switch (117), the filter cleaning operation can be started in priority to the blowing operation as described later, and by turning it OFF, the filter cleaning operation can be stopped. can be done.

In addition, (100a) turns on the operation switch (100).
Operation indicator lamp (101a) that lights up when
102a) (103a) (104a) (105a)
(10 [ia) is each blow operation switch indicator lamp,
(109a) (109b) (109c) (109
d) (109e) is a strength level display lamp, (llll
a) (112a) (113a) are foot side, dorsal side and ventral side indicator lamps, (121) (122) (123) respectively.
) is a lamp (117a) that displays each selection pattern A-B-C in pulse blow, wave blow, cycle blow, and program blow, which will be described later, is a filter cleaning indicator lamp, and (117b) is a filter cleaning operation indicator lamp. It is.

Further, as shown in FIG. 13, the operation panel section (6) is equipped with an infrared receiving section (30b) at the negative end, and can be operated in advance by operating each switch provided on a remote controller (30) to be described later. Based on the set serial code transmission signal, when a predetermined code signal corresponding to each switch is transmitted from the infrared transmitter (30a) provided in the remote controller (30), the signal is transmitted to the infrared receiver (30b). The detection signal is detected by the control unit (C
) to drive a desired drive device based on the drive program read out from the memory (52).

In addition, an opening/closing lid (125) is provided on the top surface of the operation panel section (8).
) is installed so that it can be opened and closed freely, and with the same opening and closing M (125),
Timer switch (114), clock display (115)
, the bath water temperature display section (11B), the filter cleaning operation indicator lamp (117b), and the infrared receiving section (30b).

Further, the operation panel section (6) can be configured integrally with the air intake section (5) to make the operation panel section (6) more compact and improve its aesthetic appearance.

Further, the infrared receiving section (30b) is connected to the operation panel section (6).
In addition, it can be installed at a location where it is easy to receive infrared rays.

(II-7) Description of remote controller In addition to the operation panel section (6) described above, the remote controller (30) is used to manually send drive output to the control section (C) in a bathing state. I will explain about it.

The remote controller (30) is shown in FIGS. 14 and 15.
As shown in the figure, there is an operation switch (60), a mild blow switch (81) which is a blow operation switch, a shiatsu blow switch (82), and a pulse blow switch (63).
), wave blow switch (65), cycle blow switch (ee) and program blow switch (67)
), the bath water spout strong/four side switch (68) (69),
It is equipped with a foot side jet nozzle usage pattern switch (74), a dorsal side jet nozzle usage pattern switch (75), and a ventral side jet nozzle usage pattern switch (7B), which are switches for changing the jet nozzle usage pattern.

Then, by turning on the operation switch (60),
This makes it possible to start a blow operation, which will be described later.

The remote controller (30) also includes an infrared transmitter (30a) at the front end and a blow status display section (lao) at the top of the front.

The blow state display section (130) allows the blow state to be visually recognized in order to improve the usability of the remote controller (30).

That is, the blow state display section (130) includes a jet flow type character display section (131) and a wave blow display section (132).
), bath water spout position display section (133), and strength level display 1
(134).

The jet flow type character display section (131) is placed on the right half of the blow state display section (130), with a mild blow display section (135) and an acupressure blow display section (13B) spaced apart from each other vertically on the paper. , pulse blow display section (137)
, a wave blow display section (138), a cycle blow display section (139), and a program blow display section (138).
40), a pulse blow display section (137), a wave blow display section (138), a cycle blow display section (139), and a program blow display section (140).
Selected pattern A-B-C display area (137a) on each right side of
(138a) (139a) (t4oa) are provided.

Further, the character display in the jet flow type character display section (131) described above is performed by liquid crystal.

In addition, on the left half of the blowing state display section (130), there is a bathtub periphery line (144) that graphically represents the periphery of the bathtub body (1).
and a bather diagram (145) in which the bather is graphically displayed within the bathtub circumference line (144), and the above-mentioned wave blow display section ( 132) and bath water spout position display section (133
) has been established.

The wave blow display section (132) includes a thin wave blow display line (1) within the bathtub peripheral line (144).
32a) are provided at intervals in the longitudinal direction, and the electronic display band formed by the display line (132a) is sequentially blinked by the liquid crystal to express the state of the waves coming and going, and the wave blow operation state is shown. It is configured so that it can be visually recognized.

In addition, the bathtub spout position display section (133) indicates the bathtub peripheral line (
A total of six display units (133) are provided at positions corresponding to the installation of the jet nozzles in each unit (144), and each display unit (133) is lit or flashed by a liquid crystal display, so that the usage status can be visually confirmed.

In addition, the strength level display section (134) is provided at the bottom of the blow state display section (130) on the paper, and as described later, "strong", "midway", "medium", "medium weak", " A strong indicator lamp (
134a), an intermediate indicator lamp (134b), a medium indicator lamp (134c), a medium-low indicator lamp (134d), and a weak indicator lamp (134e) are arranged horizontally in a line. The strength level display section (134) is also displayed using liquid crystal. In addition, the blow status display section (13
0) The characters "strong" and "weak" inside are printed.

Moreover, the remote controller (30) is configured to be able to float on the surface of the bath water (with a specific gravity of 0.01 to 1), so that a bather can operate it while taking a bath.

With the above-described configuration, in the bubble-generating bathtub (A) obtained in this example, the pump drive motor (M) and the nozzle valve body can be opened and closed by operating the remote controller (30) on the bath surface. motor (Ml
), bubble m: motor for opening/closing the valve body for section A (M2),
Drive and control drive devices such as the electric three-way valve (45) and the like through the control unit (C), and the rotational speed of the circulation pump (P) driven by each drive device, and each jet nozzle (2) (3)
Adjustment of the opening/closing amount and opening/closing speed of the jet gk regulating valve body (22) provided in (4), and the opening/closing amount and opening/closing speed of the air bubble amount regulating valve (5d) provided in the air intake part (5), electric three-way Valve (45
) can be switched.

Then, by adjusting the rotational speed of the circulation pump (P), adjusting the opening/closing amount and opening/closing speed of the jetting amount regulating valve body (22), or a combination thereof, the jetting amount of bath water spouted from each jetting nozzle, You can set six types of jet modes (mild blow, shiatsu blow, pulse blow, wave blow, cycle blow, and program blow) with differences in jet pressure and amount of bubbles mixed in, and each jet mode can be controlled by remote controller. The selection can be made by turning the blow operation switch provided at (30) ON/OFF.

Moreover, for each jet form, the bath jet strong/four-side switch (138) (69) can be turned on and off to adjust the jet bath to five levels (strong, middle, width, medium-low, weak).
It is possible to adjust the intensity level.

Furthermore, by turning each changeover switch (101) (LO2) to the jet nozzle usage pattern 0N-OFF, it is possible to select the usage pattern of the six jet nozzles to which the above-mentioned jet flow form is applied. I have to.

This selection operation changes the initial settings to each of the six jet nozzles (
2) (2) (3) (3) (4) The bath can be made to be able to jet from all of (4) at the same time, and then each jet nozzle (2) (3) (4) can be sprayed according to the user's preference. ) Each spout nozzle usage pattern switch (74) (75) (7B) corresponding to the spout/stop of the bath from ON-OF
It allows you to perform both F operations.

[I11] Description of jet flow forms Below, the jet flow forms (mild blow, acupressure blow, pulse blow, wave blow, cycle blow, and program blow) obtained in this example will be explained based on FIGS. 16 to 26. explain.

(III-1) Mild Blow Mild blow is performed at each jet nozzle (2) (3) (4
) is a jet type with a large amount of water jetted out and a low jet pressure, and it is mild and soft, enveloping the entire body of the bather, giving the bather the sensation of a stimulating massage.

In other words, the mild blow is performed by each jet nozzle (2) (
3) Operate each of the jetting amount adjustment valve bodies (22) in (4) almost fully open, and change the rotation speed of the circulation pump (P) within a certain range (for example, within the range of 1700 to 3000 r, p, a+). Then, the discharge pressure of the pump (P) is set to several levels (for example, three levels) of strength within a constant low pressure range (for example, 0.2 to 0.5 kg/cd), and each jet Nozzles (2) (3) (4) Larger volume baths (e.g.
40-B (19/5 inch) can be ejected.

In addition, Fig. 16 shows an injection amount-injection pressure characteristic curve (PL) (F
2) (F3) is exemplified, and (Nl)(N2) (
N3) (N4) is the rotation speed performance curve of the circulation pump (P). However, the magnitude relationship of the rotation speed is Nl>N2>
N3>N4.

In addition, the injection amount-injection pressure characteristic curve (PI) in Fig. 16a
The upper point (b) shows the mild blow state when the rotational speed of the circulation pump (P) is around the maximum (Nl) (for example, 3000 r, p, s). (Yl) is
It shows the mild blow zone, and points (bl) (b
2) shows a mild blow state set within the same mild zone (Yl).

Further, FIG. 17 shows examples of jet nozzle characteristic curves R1, R2, and R3 when the jet m adjustment valve body (22) is fully opened, half opened, and quarter opened. ul, u
2. u3... is an ejection pressure line. However, the magnitude relationship of the ejection pressure is ul<u2<u3...

Further, point (b) in FIG. 16a can be represented as a point (bo) on the jet nozzle characteristic curve (R1) shown in FIG. 17a.

In addition, in Fig. 17a, (Y'l) indicates the mild blow zone in the jet nozzle characteristics, and the point (b'1
)(b'2) indicates a mild blow state set within the same mild blow zone (Y'l).

Moreover, the above-mentioned mild blow is activated by turning on the mild blow switch (61) of the remote controller (30).

In addition, when changing the strength level of the mild blow or changing the jet nozzle usage pattern, each switch can be changed for a short time (
For example, I try to do this every 1 second).

In addition, Fig. 18 shows the foot side, dorsal side, and ventral side jet nozzles (2).
(3) It is a timing chart of the opening/closing operation of each ejection amount adjustment valve body (22) of (4) and the operation of the circulation pump (P).

6 jets: foot, dorsal, and ventral jet nozzles (2), (3), and (4).

The output ffi adjustment valve body (22) is operated for a certain period of time (tl) (for example, 0
seconds), the opening position (dl) (
Set valve open position (d2) from valve open position before jet flow form change)
(For example, the valve is operated to the open position, which is six fins retreated from the fully closed position.)

The circulation pump (P) is operated by each ejection amount adjusting valve body (2
Immediately before the time (t'l) at which the setting valve opening operation ends in 2) has elapsed, the rotation speed (■1) (for example, 2800r, p, a+) before changing the jet flow form is gradually decreased, and the rotation speed is maintained for a certain period of time. (t'2) (for example, 3 seconds) at a certain number of rotations (v2
) (for example, 2400r, p, n+).

In addition, in this embodiment, the operation is started (operation switch (60)
) or (100)), the blow operation starts. At the start of the blow operation, the circulation pump (P
) has a child safety function that slowly increases the rotation speed.

The subsequent jet flow form is initially set as the above-mentioned mild blow, and the strength level is set to "medium".

Moreover, in this embodiment, as shown in the timing chart of FIG. 19, at the start of operation, only the valve body (22) for adjusting the jetting amount of the back spouting nozzle (3) is once closed to the fully closed position. This prevents the cold remaining water in the piping used last time from spouting out from the back spout nozzle (3), causing discomfort to bathers or causing danger to bathers (see below). , such blow operation is referred to as "child safety blow").

That is, in FIG. 19, the ejection amount adjusting valve body (22) of the back side ejection nozzle (3) is adjusted to a constant state after a certain period of time (LL) (for example, 0 seconds) has elapsed since the mild blow switch was operated (to). The time (t2) (for example, 1 second) is a high speed (preferably maximum speed), and the valve is closed by operating from the intermediate position (stop position) to the fully closed position, and the valve is kept in the closed state for a certain period of time (t3). After holding it for (for example, 2 seconds),
For a certain period of time (t4) (for example, 1 second), the valve is operated at a high speed (preferably maximum speed) to a set valve opening position (d2) (for example, a valve opening position retreated by 6 m+e from the fully closed position).

The valve bodies (22) for adjusting the jetting amount of the other foot-side and ventral-side jetting nozzles (2) and (4) are closed when the mild plow switch is operated (t
O) After a certain period of time (tl) (for example, 1 second) has elapsed,
For a certain period of time (t2) (for example, 1° second), at a high speed (preferably maximum speed), from the intermediate position (cll) (stop position) to the approximately fully open position (d2) (for example, 6 steps backward from the fully closed position) The valve is operated until the valve is opened (open position).

Then, the circulation pump (P) determines the time (
Immediately after t'B has elapsed, the operation is started, and the rotational speed is slowly and gradually increased by inverter control for a certain period of time (t'B).
2) A certain number of revolutions (R2) within (for example, 10 seconds) (
For example, 280Or, plm).

In addition, the mutual control timing of the opening/closing operation of the valve body (22) for full jet adjustment of each jet nozzle (2) (3) (4) and the rotation speed change of the circulation pump (P) may cause discomfort to the bather. This is done in consideration of preventing the discharge pressure of the circulation pump (P) from increasing rapidly, and this will be explained later in (IV-7).

I By applying a powerful jet stream to the bathing area, the bather is given a stimulating pine surge sensation with acupressure sensation.

In other words, the acupressure blow is performed using each jet nozzle (2) (3) (
4) by slightly opening each of the valve bodies (22) for regulating the amount of ejection, and keep the rotational speed of the circulation pump (P') within a certain range (for example, 20
00 to 3000r, p, m), and the discharge pressure of the same pump CP) is set to a constant high pressure range (e.g. 0.5 to t, ok/c) in several steps (e.g. It can be set to five strength levels (5 levels).

In addition, the ejection amount-ejection pressure characteristic curve (R3) in Fig. 16a
Point (e) at the top minimizes the amount of ejection from the bath (for example, 3
0477m1n) shows the state of acupressure blowing.

In addition, in Fig. 16a, (R2) indicates the acupressure blow zone in the ejection amount-ejection pressure characteristic, and the point (oL)
(e2) shows the acupressure blow state set within the same acupressure blow zone (R2).

Further, the point (et) in FIG. 16a can be represented as a point (e') on the jet nozzle characteristic curve (R3) shown in FIG. 17a.

In addition, in Fig. 17a, (Y'2) indicates the acupressure blow zone in the jet nozzle characteristics, and the point (e'D (
e'2) indicates the acupressure blow state set within the same acupressure blow zone (Y'2).

In addition, the above-mentioned shiatsu blow can be used with a remote controller (
It is activated by turning on the acupressure blow switch (62) (30).

Also, Figure 20 shows the foot, dorsal, and ventral jet nozzles (2).
(3) It is a timing chart of the opening/closing operation of each of the injection amount adjusting valve bodies (22) and the operation of the circulation pump (P) in (4).

That is, in FIG. 20, each jet 'Q regulating valve body (2
2) is a certain period of time (t2) after a certain period of time (11) (for example, 0 seconds) has elapsed since the acupressure switch was operated (to).
) (e.g. 1 second) is a high speed (preferably maximum speed)
Then, the set valve opening position (d2) is changed from the valve opening position (dl) before changing the jet flow form (for example, the valve opening position is 6 steps backward from the fully closed position) (for example, the valve opening position is 1.5 steps backward from the fully closed position). The valve is operated to open until the valve is opened (open position).

The circulation pump (P) is operated by each ejection amount adjusting valve body (2
Immediately after the time (t' t) at which the setting valve opening operation ends in 2) has passed, the rotation speed (■1) before changing the jet flow form (for example, 2400r, p, m2) is gradually increased, and the rotation speed is increased for a certain period of time. (t'2) (for example, 3 seconds) within a certain number of rotations (
v2) (for example, 2800r, p, +*).

(Iff-3) Pulse blow Pulse blow uses individual jet nozzles (2) (3) (
4) is a jet type in which the bath water is periodically opened and closed to alternately emit and stop the water, and by emitting and not emitting the jet in pulses, it can give a sharp stimulation to the bather. It is something.

That is, in the pulse blow, in the acupressure blow,
The valve body (22) for adjusting the jetting amount of each jetting nozzle (2) (3) (4) is set at a high speed (preferably maximum speed) for a short period of time (for example, 1 second) to the valve opening position. and the fully closed position alternately. Thereby, a state in which the bath is ejected and a state in which the bath is not ejected can be alternately generated. Note that when ejecting the bath, there are cases in which bubbles are included and cases in which bubbles are not included.

The intensity level of the pulse blow can be changed by changing the rotational speed of the circulation pump (P) to keep the blowout amount within a certain range (for example, 30 to 50g/5h).
This can be done by setting it in several stages (for example, five stages).

Further, the above-mentioned pulse blow is activated by turning on the pulse blow switch (63) of the remote controller (3a).

Also, Figure 21 shows the foot side, dorsal side, and ventral side jet nozzles (2).
(3) It is a timing chart of the opening/closing operation of each of the injection amount adjusting valve bodies (22) and the operation of the circulation pump (P) in (4).

That is, in FIG. 21, each injection amount adjusting valve body (2
2) After a certain period of time (tl) (e.g., 0 seconds) has elapsed since the pulse puller switch was operated (to), the valve is moved back six steps from the valve open position (di) (e.g., from the fully closed position) before changing the jet flow form. The fixed time (t2) (for example, 1 second) from the set valve open position (d2) (for example, the valve open position moved back two strokes from the fully closed position) is at high speed (preferably maximum speed). The valve is kept open for a certain period of time (11
) (for example, 1 second), then for a certain period of time (t4)
(for example, 1 second), the valve is operated at high speed (preferably maximum speed) to the fully closed position, and the fully closed state is maintained for a certain period of time (
t5) (for example, 1 second), then hold for a certain period of time (t
6) (for example, 1 second), operate the valve to open at a high speed (preferably maximum speed) to the above-mentioned set valve opening position (d2), and further maintain the same open state for a certain period of time (t7) (for example, 1 second). After that, the valve is opened and closed, which is repeated periodically.

Then, the circulation pump (P) operates for a certain period of time (t'l) (for example, 1
seconds), the rotation speed (Vl) (for example, 240 Or, p, m) before changing the jet flow shape is gradually increased, and the rotation speed becomes constant within a certain period of time (t'2) (for example, 3 seconds). Rotation (V2) (for example, 280 Or, Lm).

Also, a certain period of time (t3) for maintaining the above set valve open state.
Different pulse blow patterns can be set by changing .
Three types of patterns -B-C are set so that the stimulation time given to the bather by the jet can be selected depending on the bond.

(III-4) Wave blow Wave blow is a jet flow type that periodically changes the rotation speed of the circulation pump (P) to periodically change the amount and pressure of the jet in the bath. By changing the flow in a slow cycle, we create a flow rich in variation.
It gives the image of a jet of waves that approaches and returns to the bather.

In other words, the wave blow is performed by each jet nozzle (2) (
3) Turn on the operation of the circulation pump (P) by fully opening or fully opening each of the jetting amount adjusting valve bodies (22) in (4).
OFF or periodically change the rotation speed of the circulation pump (P) within a certain range (for example, within a range of 1600 to 3000 r, p, i).

And, changing the strength level of the wave blow,
The rotation speed range of the circulation pump (P) that is periodically changed can be set in several stages (for example, five stages) within the above-described fixed rotation speed range.

Also, (di) (d2) (d3) shown in Figure 16b
are the ejection amount-ejection pressure characteristic curves of wave blow, and along each curve (di) (d2) (d3),
The amount and pressure of the bath water that is ejected changes.

Also, (d'l) (d'2) (d
'3) are the jet nozzle characteristic curves for wave blowing, and wave blowing allows the amount of bubbles to be changed significantly.

Further, the above-described wave blow is activated by turning on the wave blow switch (65) of the remote controller (30).

Further, the usage pattern of the jetting nozzle for jetting bath water in such wave blowing is the same as in the case of mild blowing described above.

Also, Figure 22 shows the foot side, dorsal side, and ventral side jet nozzles (2).
(3) This is a timing chart of the opening/closing operation of each of the injection amount adjusting valve bodies (22) and the operation of the circulation pump (P) in (4).

That is, in FIG. 22, each injection amount adjusting valve body (2
2), after a certain period of time (tl) (for example, 1 second) has elapsed since the wave blow switch was operated (to), the valve open position (dl) before changing the jet flow form (for example, 6 from the fully closed position)
Set valve open position (d2) from m + g (retracted valve open position)
(For example, the valve open position is 4 steps back from the fully closed position)
It is operated at high speed (preferably maximum speed) for a certain period of time (t2) (for example, 1 second).

Immediately after the time (t3) at which the set valve opening operation of each jet ffi adjustment valve body 22) ends, the circulation pump (P) starts rotating at the rotation speed m) (for example,
240Or, p, m) for a certain period of time (
t4) constant high rotational speed (vl) within (e.g. 4 seconds)
(for example, 3000r, p, m), and then gradually reduce the rotational speed to a low rotational speed (V3) (for example, 1800r, p, m) within a certain period of time (t5) (for example, 4 seconds).
Then, the number of revolutions is gradually increased and the rotation speed is increased for a certain period of time (te).
For example, the rotational speed is changed periodically such that the rotational speed is set to the above-mentioned high rotational speed (vl) within 4 seconds.

In addition, different wave blow patterns can be set by changing the periodic variation of the rotation speed of the circulation pump (P), but in this embodiment, the above-mentioned wave blow pattern is set as wave blow A, The wave blow pattern explained below is wave blow B-C.
We have set three types of patterns.

That is, as shown in the timing chart of FIG. 23, the wave blow B starts immediately after the time (t3) at which the set valve opening operation of each jet amount adjusting valve body (22) ends, and before the jet flow form is changed. rotation speed (vl) (for example, 240
Or, p, rl) for a certain period of time (t4)
(for example, 4 seconds) with a certain high rotation speed (V2) (for example, 3000r, p, m), and the same high rotation speed (■2)
continues for a certain period of time (t5) (for example, 2 seconds), and then gradually decreases the rotation speed to a low rotation speed (V3) (for example, 1800
r, p.

! 1), and the same low rotation speed (v3) for a certain period of time (t7)
(for example, 2 seconds) and then gradually increase the rotation speed to reach the above-mentioned high rotation speed (vl) within a certain period of time (t8) (for example, 4 seconds). It's changing.

In addition, as shown in the timing chart of FIG. 24, the wave blow C starts immediately after the time (t3) at which the set valve opening operation of each jet ffi regulating valve body (22) ends and before the jet flow form is changed. rotation speed m) (for example, 240 Or,
p, m) are gradually increased so as to draw a downward convex curve to a constant high rotational speed (V2) (for example, 3000 r, p, m) within a certain time (t4) (for example, 3 seconds), After sonication, the rotation speed is adjusted for a certain period of time (t5) in a downwardly convex curve.
) (for example, 3 seconds) to a low rotation speed (V3) (for example, 18'00r, p, m), and then gradually increase the rotation speed in a downward convex curve for a certain period of time (t6)
The rotational speed is changed periodically such that the rotational speed is increased to the above-mentioned high rotational speed (v2) within (for example, 3 seconds).

In this embodiment, in particular, since the rotation speed of the circulation pump (P) is controlled by the inverter (E), the rotation speed of the circulation pump (P) is controlled by the inverter (E).
By smoothly and reliably changing the rotational speed of P), it is possible to generate wave blows A-B-C with pulsating strength in a fleeting, weak jet.

Among them, in Wave Blow C, the rotation speed of the circulation pump (P) changes in a nearly catenary curve, with a large rotation speed increase rate and rotation speed decrease rate near high rotation speeds, and a large rotation speed decrease rate near low rotation speeds. Because the rotation speed increase rate and rotation speed decrease rate are small, strong changes in the jet flow occur in a relatively short time, and weak changes in the jet flow occur over a relatively long time, creating a sharp and acupressure effect on the bather. It can be made into a jet form with .

(III-53 Cycle Blow) Cycle blow allows you to enjoy the change in the position of the bath by automatically and periodically changing the position where the bath is jetted.

That is, the cycle blow is performed by, for example, blowing each jet amount adjusting valve for a certain period of time in the order of dorsal jet nozzle (3) (3) → ventral jet nozzle (4) (4) → foot jet nozzle (2) (2). It opens the body (22) and spouts out bath water,
At this time, the form of bath water spouted from each spout nozzle (2), (3), and (4) is determined by adjusting the opening/closing amount of each spout amount regulating valve body (22) and the rotation speed of the circulation pump (P). , mild blow, acupressure blow, wave blow, and furthermore, a jet form in which mild blow and acupressure blow are periodically changed can be adopted.

In this example, three types of cycle blow patterns A-BφC are set, and each cycle blow pattern is described below.
-C will be explained based on the timing charts shown in FIGS. 25 and 26.

The cycle blow A takes the form of acupressure blow, and as shown in the timing chart of FIG.
(For example, after 0 seconds), only the jet volume adjustment valve body (22) of the back jet nozzle (3) is moved back from the valve open position (dl) (for example, 6 m111 from the fully closed position) before changing the jet flow form. Set valve open position (dl) from (valve open position) (for example,
The valve is operated at a high speed (preferably the maximum speed) for a certain period of time (t2) (for example, 1 second) until the valve opens to the valve open position, which is 1.5 mm backward from the fully closed position. Each jet amount adjustment valve body of the side jet nozzle (4) (
22) to the fully closed position for a certain period of time (t2) (for example,
1 second), the valve is closed at high speed (preferably maximum speed).

In this state, bath water in the form of acupressure blow is ejected only from the back side ejection nozzles (3) (3).

Then, the valve body (2) for adjusting the ejection amount of the back side ejection nozzle (3)
2) is held at the open position (dl) for a certain period of time (t3) (for example, 2 seconds), and then fully opened at a high speed (preferably maximum speed) for a certain period of time (t4) (for example, 1 second). The valve is operated until the valve is closed.

Subsequently, the valve body (22) for adjusting the jet amount of the ventral jet nozzle (4), which was in the closed state, is closed for a certain period of time (t5) (for example,
0 seconds), the set valve opening position (dl) is set at high speed (preferably maximum speed) for a certain period of time (t6) (for example, 1 second).
After holding the valve at the same set opening position (dl) for a certain period of time (t7) (e.g. 2 seconds),
8') (for example, 1 second), the valve is closed at a high speed (preferably maximum speed) to the fully closed position.

In this state, the bath in the form of acupressure blow is ejected only from the ventral ejection nozzle (4) (4).

Subsequently, after a certain period of time (t9) (for example, 0 seconds) has elapsed, the jet ff1fi regulating valve body (22) of the foot side jet nozzle (2), which was in the closed state, is turned on for a certain period of time (tlo) (for example, 1 second). is operated at high speed (preferably maximum speed) to the set valve opening position (d2), held at the same set valve opening position (d2) for a certain period of time (tll) (for example, 2 seconds), and then operated for a certain period of time (t12). ) (for example, 1 second) is a high speed (
The valve is closed to the fully closed position, preferably at maximum speed.

In this state, bath water in the form of acupressure blow is ejected only from the foot-side ejection nozzles (2) (2).

Subsequently, after a certain period of time (tiB) (e.g. 0 seconds) has elapsed, the valve body (22) for adjusting the ejection amount of the back side ejection nozzle (3) which was in the closed state is turned on for a certain period of time (t14) (e.g.
1 second) is operated at high speed (preferably maximum speed) to the set valve opening position (d2), and after holding at the same set valve opening position (d2) for a certain period of time (t15) (for example, 2 seconds),
The valve is operated to close the valve at a high speed (preferably at the maximum speed) for a certain period of time (tiB) (for example, 1 second) to the fully closed position.

In addition, the circulation pump (P) operates for a certain period of time (t'l) (for example, 0
seconds) after which the number of revolutions m) before changing the jet flow form (e.g. 2
80Or, p, m) for a certain period of time (t
' 2) Constant number of revolutions (V2) within (for example, 1 second)
(For example, 2500v, p, m) and the same rotation speed (■2
) is maintained during blow operation.

Furthermore, although cycle blow B takes the form of acupressure blow, in the timing chart of cycle blow A described above, the setting of the valve body (22) for controlling the ejection amount of each ejection nozzle (2) (3) (4) The only difference is that the fixed times (t3) (t7) (tll) for holding the valve open position (d2) are different (for example, 4 seconds).

In this way, in cycle blow A-B, the valve body (22) for adjusting the jetting amount of each jetting nozzle (2) (3) (4) is sequentially moved from the dorsal side to the ventral side → the foot side to the dorsal side at a constant rate. Since the circulation pump (P) is opened and closed in cycles and the rotational speed of the circulation pump (P) is kept constant, it is possible to apply acupressure effects to all parts of the bather's body while changing the ejection position of the acupressure blow. can.

Furthermore, the cycle blow C takes the form of a wave blow, and as shown in the timing chart of FIG. For example, set the valve opening position (d2) for a certain period of time (t3) (
t7) (tll) is different from that of cycle blows A and B (for example, 8 seconds).

Furthermore, the rotation speed of the circulation pump (P) is changed periodically.

That is, after a certain period of time (t'l) (e.g., 0 seconds) has elapsed since the cycle plow switch was operated (to), the circulation pump (P) has a rotation speed m> (e.g., 240 Or, p, a+) gradually decreases to a constant low rotational speed (t'2) (for example, 1 second).
v3) (for example, 1800r, p, m), then
The rotation speed is gradually increased to a constant high rotation speed (v2) within a certain time (t'3) (for example, 4 seconds), and then,
The rotation speed is gradually reduced to a constant low rotation speed (v3) within a certain time (t'4) (for example, 4 seconds).

Then, the constant low rotational speed (v3) is maintained for a certain period of time (L
'4) After maintaining (for example, 1 second), the above-mentioned change in rotation speed (V3→v2→V3) is repeated.

This change in rotational speed (V3-V2-V3) is performed only while bath water is being spouted from any of the jetting nozzles (2), (3), and (4), and each jetting nozzle (2)
(3) While the jet volume adjustment valve body (22) in (4) opens and closes, the timing is adjusted to maintain a constant low rotational speed (v3) to prevent sudden changes in jet flow strength. This prevents the bathers from feeling uncomfortable.

Therefore, each jet nozzle (
2) From (3) and (4), a bath in the form of a wave blow will be emitted, and as the ejection position of the bath changes, you can enjoy the jet that gives the image of a wave that is unique to wave blow.

Furthermore, in this example, the positions of the bath water spouts for cycle blows A, B, and C were changed from dorsal side to ventral side to foot side to dorsal side.
It is not limited to this order in any way; other orders (for example,
Dorsal side → foot side - ventral side → dorsal side) can also be taken. Also,
It is also possible to change the ejection position of the bath irregularly.

(I [l-6) Program blow Program blow is a method of diversifying jet flow changes by arbitrarily combining or changing over time the jet form, jet strength, and jet location according to a preset program. You can enjoy the unexpected combination order of the jet flow forms, which is not a fixed discipline method.

In addition, in this embodiment, multiple programs with different contents are prepared in consideration of the age, gender, etc. of the bather, and the program blow operation is a standard blow operation with the most common menu. A, program blow B, which is the hardest blow operation with the most intense menu, and program blow C, which is the lightest and gentlest blow operation, can be selected.

Each program blow A-B-C is as shown in the program blow specifications in Table 1.

In Table 1, ranks 2 and 3 are divided into three groups by dividing the plurality of jet forms described above into three groups, and the probability of occurrence of the jet forms within the same group is divided into three levels. The appearance probability of the jet form belonging to 5 is
0%, and the appearance probability of jet form belonging to rank 2 is 30.
%, and the probability of appearance of jet form belonging to rank 3 is 20%.
It is said that

In addition, the strength level of the jet stream is set in three levels, with 1 being weak, 2 being medium-weak, 3 being medium, 4 being intermediate, and 5 being strong.

In program blow A, the strength level of the jet flow is set to 2 to 4 in order to perform a standard blow operation, and in program blow B, the strength level of the jet flow is set to 3 to perform a hard blow operation. In program blow C, the strength level of the jet stream is set to 1 to 3 in order to perform a light blowing operation.

In addition, the hot spring water is ejected from three locations (2), (3), and (4) at the same time: the foot, dorsal, and ventral nozzles (2), (3), and (4), and from any two locations simultaneously. , any one
The case of simultaneous ejaculation from three places is indicated as (feet, back, abdomen), and the case of simultaneous ejaculation from two places is indicated as (feet, dorsal) (
Dorsal/ventral) (feet/abdominal)
It is displayed as (back) (belly).

In addition, each jet form, the strength level of the jet, and the jet position in the bath are changed after a certain period of time (for example, 30 seconds), giving bathers the pleasure of continuous change.
I try to keep the bathers from getting bored.

In addition, the jet flow shape is designed to prevent the same shape from appearing continuously, thereby ensuring the enjoyment of change for the bather.

In addition, each program blow A-B-C can be set to a constant blow time, and in this embodiment, program blow A is set to 4 minutes, program blow B is set to 5 minutes, and program blow C is set to 3 minutes. are doing.

In addition, several types of menus are set for each program blow A-B-C, and when one of the program blows is selected, the menu is randomly selected from among the selected program blows. You can also.

In this way, in program blow A-B-C, the jet form, jet strength, and jet location are changed irregularly in consideration of age, gender, etc. You can fully enjoy the unexpectedness and never get bored while taking a bath.

[Margin below]

[rV] Explanation of the operation of the bubble-generating bathtub (IV-1) Explanation of the operating procedure based on the flowchart Below, the operation of the above-mentioned bubble-generating bathtub (A) will be explained based on the flowcharts shown in FIGS. 27 to 32. .

First, the main routine shown in FIG. 27 will be explained.

Insert the plug for the control unit (C) etc. into the power supply and supply power (2
00).

All foot, dorsal, and ventral jet nozzles (2) (3) (4)
The motor (old) for opening and closing the valve body for each nozzle is initialized (210).

Subsequently, the bubble generating bathtub (A) is brought to a halt state (2
15). In such a stopped state, the bubble generating bath tQ (
Circulation pump (P) and each jet nozzle (2) installed in A)
Various actuators such as (3) and (4) stop operating.

At this time, each jet nozzle (2), (3), and (4) is in the state in which the motor (old) for opening and closing the valve body for each nozzle is initially set, that is, in the open state in which the valve is moved back by 6 w + n + from the fully closed position. This allows for smooth supply and drainage of the bath when filling with hot water and draining water.

In addition, when the operation is stopped, the control section (C) is in a state of waiting for input, and even when the operation is stopped, the control section (C) controls the pressure detection sensor (48) and the bath water temperature detection sensor (T).
), hot water filling operation, anti-freeze operation, etc. can be controlled according to the detection results from the system.

Next, the bathtub body (1) is detected by the bathwater temperature detection sensor (T).
) is within the temperature range (for example, 5 to 50°C) that allows blow operation (220)
.

In this example, we determined the temperature range of the bath water that can be operated by blowing, taking into consideration the protection of bathers and synthetic resin piping, and the prevention of freezing of the bath in the circulation pump (P), and we decided to blow this temperature range. This is one of the conditions for starting the operation, and the conditions for starting the blowing operation will be explained in detail later.

As a result, when the water temperature allows blow operation, (220Y
), the operation switch (100) or (GO) can be turned on.

Then, turn on the same operation switch (100) or (60).
(225Y), the pressure detection sensor (48), which also serves as a water level detection sensor, detects whether the water level of the bath water in the bathtub body (1) is at a level where blow operation is possible (for example, an inlet provided in the bathtub body (1)). (1+w) higher than the upper end position) is detected (227).

In the present invention, in order to ensure blow operation, the upper end position of the inlet (11), which is the lowest water level at which bath water can be circulated in the bath water circulation flow path (D), is set at a water level at which blow operation is possible. As the lower limit of , this water level is set as one of the conditions for starting the blowing operation, and the conditions for starting the blowing operation will be explained in detail later.

As a result, if the water level satisfies the water level that allows blow operation (227Y), then the bath temperature detection sensor (T) detects that the temperature of the bath water in the bathtub body (1) is within the temperature range that allows blow operation (for example, (23G).

As a result, if the water temperature meets the temperature that allows blow operation (
Blow operation can be started at 230Y) (5
00).

The blowing operation (500) includes each blowing operation according to the jet flow type, a timer operation in which the blowing operation is performed within a preset time by the bather, and a timer operation that automatically cleans the filter (43) in parallel with the blowing operation. The automatic filter cleaning operation is collectively referred to as the automatic filter cleaning operation, and each blow operation, timer operation, and automatic filter cleaning operation will be explained later with reference to the subroutines shown in FIGS. 28, 29, and 30, respectively.

Then, turn off the operation switch (100) or (60).
(995Y), the operation will be stopped (215)
. Also, set the operation switch (100) or (BO) to oFt.
"If not, blow operation will continue.

Furthermore, when the operation switch (100) or (60) is turned on (225), the filtration washing operation can be performed immediately before or after the blowing operation (500), and when the filter washing switch (117) is turned on, A filtration cleaning operation may be initiated (900). Such filtration cleaning operation will be explained later with reference to the subroutine shown in FIG. 31.

In addition, when the operation is stopped (215), if the water temperature does not meet the temperature that allows blowing operation (22ON), the pressure detection sensor (48), which also serves as a water level detection sensor, causes the water level in the bathtub body (1) to blow. It is detected whether the water level for operation is satisfied (235), and if the water level is not satisfied (235N), the operation is stopped (215).

In addition, when the water level for blow operation is satisfied (2
35Y), if the temperature is lower than the lower limit temperature (for example, 5° C.) of the temperature range in which blowing operation is possible (237Y), antifreeze operation is started (aOO).

Such antifreeze operation will be explained later with reference to the subroutine shown in FIG. 32.

In addition, the upper limit temperature of the temperature range in which blow operation is possible (for example,
If the temperature is higher than 50℃ (237N), the high water temperature warning will be activated (400) and the operation will be stopped (215). At this time, the high water temperature warning is to display rHJ, which indicates high water temperature, on the clock display section (115) of the operation panel section (6) at a rate of 1 per second.
This is done by flashing for 5 seconds and sounding a buzzer.

In addition, before starting blowing operation or during blowing operation,
If the water level is not sufficient for blow operation (227
N), warning of low water level is issued 228), and the operation is stopped (215). At this time, the water level drop warning is displayed on the clock display section (115) of the operation panel section (6).
This is done by flashing the LJ display every second for 15 seconds and by sounding a buzzer (not shown). Furthermore, in a bathtub equipped with an automatic water heater, a hot water operation can be performed.

In addition, before starting blowing operation or during blowing operation,
When the water temperature is not sufficient for blow operation (23O
N), the lower limit temperature of the temperature range that allows blow operation (e.g.
If the temperature is lower than 5°C (237Y), antifreeze operation starts (3(10)).

In addition, the upper limit temperature of the temperature range in which blow operation is possible (for example,
If the temperature is higher than 50℃ (237N), the high water temperature warning will be activated (400) and the operation will be stopped (215).

Next, the blow operation described above will be explained with reference to the subroutine shown in FIG. 28.

[Blow operation]

In the initial state, the blow operation has a child safety function that slowly starts up the circulation pump (P), and the subsequent jet flow form is programmed to be a mild blow and the strength level is set to "medium" (51).
0). This prevents accidents such as children's feet getting caught and falling due to the jet flow at startup.

A desired blow operation can be selected from the blow operation at startup by turning on each jet flow type switch.

That is, for other than mild blow, by turning on the acupressure blow switch (102) (82>) (520
), acupressure blow operation can be operated (52
5).

Also, turn the pulse blow switch (103) (63) to
By N (530) (531') (532
), pulse blow A-B-C operation can be operated respectively ('535) (536) (537)
.

Also, by turning on the wave blow switch (104) (65), (540) (541) (542)
, wave blow ABC operation can be operated (545) (54[i) (547).

Also, cycle blow switch (105) ([i6)
By turning on (555) (55B) (557)
, cycle blow AφB-C operation can be operated, respectively (555) (55B) (557).

In addition, the program blow switch (10[1) (67
) by turning on (560) (561) (562
), program blow operation can be operated respectively (565) (513B) (567).

Moreover, when returning to mild blow from another blow mode, the mild blow switch (101) (61) is turned ON again (510).

Further, by turning off the operation switch (100) or the lever 60 (570), all blow operations can be stopped and the operation stopped.

In addition, in this embodiment, in order to be able to adapt as much as possible to the wishes of bathers, in the case of mild blow operation, shiatsu blow operation, pulse blow operation, and wave blow operation, the ejection position in the bath is adjusted. It allows you to perform operations to change it.

In addition, in the case of mild blow operation, finger pressure blow operation, pulse blow operation, wave blow operation, and cycle blow operation, an operation for changing the strength level of the hot water jet is provided.

The operation of changing the ejection position and strength level of the bath will be explained later.

Next, timer operation will be explained with reference to the subroutine shown in FIG. 29.

[Timer operation]

The timer operation allows the bather to set the desired blowing operation time and prevents hot flushes caused by a long bath.The operation of the timer operation will be explained below.

To start the timer operation, press the operation switch (ioo) on the operation panel section (6) to turn it on, then press the timer switch (114) to turn it on (580Y).
5) The clock display changes to the timer one hour display, for example "5" representing 5 minutes set as the minimum blow operation time, and the timer one hour "5 minutes" can be set (585
), If you release the timer switch (114) to turn it off within a certain period of time (for example, 2 seconds) (590Y), the timer one hour display will become r5:00J after 2 seconds.
The timer operation starts, and the value displayed on the timer's one-hour display decreases every second (595).

Also, if the timer switch (114) is not pressed and turned on during timer operation (80ON), and the timer operation time elapses and the timer one-hour display reaches ro:oOJ (805), the timer switch (114) is not turned on (80ON). It blinks for 5 seconds every 0.5 seconds and sounds the buzzer, and then the timer operation ends (810), and the operation stops and returns to the one-hour timer display (615).
.

Also, if you want to set the timer one hour to a time other than the five minutes mentioned above, press and hold the timer switch (114) for more than two seconds (59ON), and the display of "5" above will change to 0.
．． Since it increases in 1 minute increments every 5 seconds and returns to "1" after the maximum set value (for example, r19J), you can set your favorite blow operation time in the range of 1 minute to 19 minutes, for example. I can do it (620).

Then, when the desired number (for example, "9") is reached, release the timer switch (114) to turn it off (
625Y), and 2 seconds later, the desired timer one hour (for example, r9: OOJ) is displayed, and the value displayed on the timer one hour decreases every second (595).

While the timer is running, if you press the timer switch (114) to turn it on (1300) and release it within 2 seconds to turn it off (630Y), the timer operation will stop at that point (835), and the timer will change from one-hour display to clock display. return.

At this time, the blowing operation continues (640).

Also, while the timer is running, the timer switch (114)
If you press and hold the timer switch (114) for more than 2 seconds to turn it on (63ON), the timer one hour setting will be displayed with one minute added to the current minute display. The timer operation time can be increased in 1 minute increments (820>).

Then, when the desired value is reached, switch the timer (
114) to turn it off (625Y), the desired one-hour timer is displayed two seconds later, and the value displayed on the one-hour timer decreases every second (595).

In addition, timer operation has priority over blow operation, and can be operated regardless of the jet flow type (including when the operation is stopped).

It is also possible to change the jet flow form while the timer is running (including stopping the operation).

In addition, during the timer operation, at all timings related to the timer operation, such as setting the timer for one hour, the clock display section (115) of the operation panel section (8) lights up the timer one hour using a light emitting diode. . Note that the clock display section (115) is always lit when not displaying the clock.

Therefore, setting the timer for one hour can be easily performed.

In addition, in the blow operation state, for a certain period of time (for example, 3
0 minutes) If there is no input from the operation switch, the blowing operation is stopped.

In this way, by stopping the blowing operation after a certain period of time, it is possible to prevent the problem of the bather forgetting to stop the blowing operation and continue the blowing operation for a long time. Efforts are being made to protect piping, etc.

Further, even when the blowing operation is stopped by the timer as described above, the buzzer sounds for 5 seconds immediately after the stop to notify that the blowing operation has been stopped by the timer.

Next, automatic filter cleaning operation will be explained with reference to the subroutine shown in FIG. 30.

[Automatic filter cleaning operation]

In the automatic filter cleaning operation, the filter (43) is automatically cleaned in parallel with the blow operation, and the cumulative time of the blow operation (the cumulative time since the circulation pump (P) starts) is 760Y after a certain period of time (for example, 1 hour) has elapsed.
), and in the case of a blow operation that satisfies the automatic filtration-like cleaning conditions (765Y), the automatic filtration-like cleaning operation is started (7
70).

Here, the automatic filtration cleaning condition is when the water level and temperature are satisfied to allow blow operation, and the jet flow type is mild blow, shiatsu blow, wave blow, or cycle blow, and the strength level is strong. , in the middle, or in the middle.

Then, the automatic filter cleaning operation time is set for a certain period of time (for example,
When one minute) has elapsed (780Y), the automatic filtration-like cleaning operation ends, but the blowing operation continues, and the cumulative blowing operation time restarts (785).

In addition, if the automatic filtration cleaning conditions are no longer satisfied (interrupted) due to a change in jet flow form or strength level during automatic filtration cleaning operation (775Y), the number of retries due to interruption will be a certain number of times (e.g. , 4 times) (79ON), the automatic filtration-like cleaning operation is interrupted. Start operation (770).

On the other hand, if the number of interruptions during the automatic filter cleaning operation reaches a certain number of times, the automatic filtration-like cleaning operation is ended (785
). This can be done by retrying the bathtub body (
1) This is to prevent the bathroom from running out.

In addition, if the blow operation does not satisfy the automatic filtration cleaning conditions even though the cumulative time of the blow operation has exceeded a certain period of time (for example, 1 hour), (765N)
When the blowing operation that satisfies the automatic filtration cleaning conditions is started (gooy), the automatic filtration cleaning operation is started (770).

Next, the filter cleaning operation will be explained with reference to the subroutine shown in FIG. 31.

[Filter cleaning operation]

The filter cleaning operation is different from the automatic filtration-like cleaning operation,
After turning on the operation switch (100) or (6G), the filter cleaning switch (117) can be turned on before or after starting blowing operation, or even during blowing operation, to give priority to blowing operation. It is something that can be done.

First, turn on the filter cleaning switch (117) (
905Y), filter cleaning operation has started 910), circulation pump (P) detected by pressure detection sensor (48)
If there is no abnormality in the discharge pressure of the bathtub and the temperature of the bathtub inside the bathtub body (1) detected by the bathwater temperature detection sensor (Ton),
In other words, if the pressure and water temperature allow blow operation (91
5N), filter cleaning operation for a certain period of time (e.g. 5 minutes)
continues, and after a certain period of time has passed, the operation will be stopped (215
).

In addition, in the filter cleaning operation, the rotation speed of the circulation pump (P) is set to, for example, 8000r, p, i, and the valve bodies for adjusting the jetting amount of the foot side jetting nozzle (2) and the back side jetting nozzle (3) (22) is in a slightly open state, for example, 0.5 mm backward from the fully closed position, and only the jet amount adjusting valve body (22) of the ventral jet nozzle (4) is in a fully closed state.

In addition, if there is an abnormality in the pressure and water temperature (915Y), the water temperature will be the lower limit temperature of the bath water temperature range that allows blow operation (for example,
Detects whether the temperature is lower than (5℃), and if it is lower than (9℃).
25Y), start the anti-freezing operation 320), and if the temperature is not low, that is, higher than the upper limit of the temperature range of the bath where blowing operation is possible (for example, 50'C) (925N), the operation is stopped. Become (215).

Next, the antifreeze operation will be explained with reference to the subroutine shown in FIG. 32.

[Anti-freeze operation] Anti-freeze operation is carried out using the circulation pump <p> and the bath water circulation flow path (D
) This is done to prevent the bath in the bath from freezing, and it operates in priority to blow operation, and during blow operation, the bath water temperature is the lower limit temperature of the temperature range that allows blow operation (for example, 5 degrees Celsius). When the temperature drops below this level, the blowing operation is forcibly stopped and anti-freezing operation is started.

First, the bath water temperature in the bath water circulation flow path (D) is detected by the bath water temperature detection sensor (T), and the temperature of the bath water is lower than the lower limit temperature (for example, 5°C) of the temperature range that allows blow operation. If it is low (310Y), then the water level of the bath water in the bathtub body (1) is detected by a pressure detection sensor (48) which also serves as a water level detection sensor.
Detected by
5Y), antifreeze operation is started (320).

In such antifreeze operation, the circulation pump (P) is rotated at low speed (for example, 1000 r, p) by inverter control.
, m) to circulate the bath water in the bath water circulation channel (D).

At this time, the bath water temperature is lower than the lower limit temperature (for example, 5°C) of the temperature range that allows blow operation, or the temperature corresponding to the hysteresis provided in the bath water temperature detection sensor (T) is at the lower limit temperature of the same temperature range ( For example, if the temperature is lower (325N) than the temperature (325N) and the water level of the bath water in the bathtub body (1) is at a level that allows blowing operation (330Y), the anti-freezing operation is continued. During such anti-freeze operation, the clock display section (115) of the operation panel section (6) shows the rCJ indicating low water temperature.
The display blinks every second.

In addition, if the bath water temperature is higher than the lower limit temperature of the temperature range that allows blowing operation by pouring hot water or the like, or the temperature corresponding to the hysteresis provided in the bath water temperature detection sensor (T) is added to the lower limit temperature of the same temperature range. If the temperature exceeds the temperature (325Y), the operation will be stopped (215).

[Margin below]

Hereinafter, the main operating operations in the operating procedure of the bubble-generating bathtub will be further explained.

(IV-2) Explanation of conditions for starting blow operation The blow operation in the operating procedure described above is started only when the water level and water temperature conditions in the bathtub body (1) set in advance are satisfied. .

In other words, the water level conditions are as shown in FIG.
), and when the water level is higher than the upper end of the opening of the ventral jet nozzle (4), it is defined as water level A, and the water level is higher than the upper end of the opening of the ventral jet nozzle (4) and the inlet (Im). The water level is B when the water level is between the upper end and the water level C is when it is lower than the upper end of the suction port (11). When the water level is A or B, the blowing operation starts, and when the water level is C, the blowing operation starts. I try not to.

Further, if the water level changes from water level A or B to water level C during blowing operation, the blowing operation is stopped.

In this case, even if the water level is returned from water level C to water level B or A using hot water, etc., the blow operation will remain in a stopped state, and by turning on the operation switch again, the stoppage due to a drop in the water level can be canceled. This ensures reliable and safe operation.

At this time, on the clock display section (115) of the operation panel section (6), a light emitting diode is used to flash the rLJ display indicating the water level drop every second for 15 seconds, and a buzzer sounds to warn the user. There is.

The detection specifications for water levels A@B and C are as shown in Figure 34, and in consideration of the fact that the water surface of the bath water ripples when a bather enters and exits the bathtub, it is used as a water level detection sensor. By providing hysteresis in the output voltage of the pressure detection sensor (48) to prevent hunting from occurring, smooth control can be performed by the control unit (C) via the pressure detection sensor (48). .

In Figure 34, (Sac) is the threshold value from a water level lower than water level C to water level C, (Scb) is the threshold value from water level C to water level B, and (Sba) is the threshold value from water level B to water level A. Threshold, (Sab) is the threshold from water level A to water level B, (S,
bc) is a threshold value from water level B to water level C, and (Sea) is a threshold value from water level C to a lower water level side.

And the hysteresis is the threshold value (Soc) (Sc
o), between threshold values (Scb) (Sbc), and between threshold values (Sba) (Sab).

In addition, the water temperature conditions are set based on the water temperature, for example, 50°C, which takes into consideration the protection of bathers and synthetic resin piping, and the water temperature, which takes into consideration the freezing prevention of the bath in the circulation pump (P), for example, 5°C. Water temperature A is when the water temperature is higher than 50℃, water temperature B is when the water temperature is between 5℃ and 50℃, and water temperature is 5℃.
The lower case is defined as water temperature C, and when the water temperature is B, the blowing operation is activated, and when the water temperature is A or C, the blowing operation is not activated.

Furthermore, if the water temperature changes from water temperature B to water temperature A or C during blowing operation, the blowing operation is stopped.

In this case, even if water temperature A is returned to water temperature B using water, etc., the blow operation will remain in a stopped state, and by turning on the operation switch again, the stoppage can be canceled due to a rise in water temperature. The aim is to ensure reliable and safe operation.

At this time, the clock display section (1, 15) of the operation panel section (6)
In addition, a light-emitting diode rHJ display indicating high water temperature flashes every second for 15 seconds, and a buzzer sounds to warn the user.

In addition, the detection specifications for the water temperatures A-B-C are as shown in Figure 35, and the bath water temperature detection sensor (T)
Hysteresis is provided in the resistance value to prevent hunting, thereby allowing smooth control by the control unit (C) via the bath water temperature detection sensor (T).

In Fig. 35, (S'oc) is the threshold from water temperature C to water temperature C, (S'cb) is the threshold from water temperature C to water MB, and (S'ba) is water temperature B. The threshold from water temperature A to water temperature A, (S'ab) is the threshold from water temperature A to water temperature B, (
S'bc) is the threshold value from water temperature B to water temperature C, (S'c
o) is a threshold value from water temperature C to a lower temperature side.

And the hysteresis is the threshold value (Sco) (Sc
o), between threshold values (Scb) (Sbc), and between threshold values (Sba) (Sab).

(IV-3) Description of state transition of jet flow state The state transition of jet flow form in the above-mentioned operating procedure is as shown in Table 2.

In Table 2, the operation stop status and each jet flow type are listed vertically, and each status number is listed on the corresponding right side, and the operation switches (operation switch, mild switch, shiatsu blow switch, pulse blow switch, wave blow switch, cycle blow switch, program blow switch) and operation panel section (6)
Indicators displayed by light emitting diodes (mild blow indicator, acupressure blow indicator, pulse blow indicator, wave blow indicator, cycle blow indicator,
program blow display section, selection pattern ABC display section) are listed.

Table 2 shows that by turning on each operation switch, the jet flow form changes from the jet flow form before turning on to the jet flow form after turning on.

In addition, in the case of pulse blow, wave blow, cycle blow, and program blow that have selection patterns A-B and C as sub-modes, newly changed sub-modes are always in the preset order between jet flow forms of the same type. , for example, in the order of frequency of use (in this example, A-
4B→C→A).

In addition, between different types of jet flow types, be sure to set submodes in advance, such as frequently used submodes (
In this embodiment, the transition is made to A).

Specifically, referring to Table 2, when the operation switch (100) is turned on, the operation is stopped (status number "0").
”) to a mild blow (state number “1”).

From this mild blow state, the pulse blow switch (
63) If (103) is turned ON, the state changes to pulse blow A (state number r3AJ).

From this state of pulse blow A, press the acupressure blow switch (
62) If (102) is turned ON, the state changes to acupressure blow (state number "2").

In addition, if the pulse blow switch (B3) (LH) is turned on to make a transition from the pulse blow A state to the same type of jet form, the state changes to pulse blow B (state number r3BJ).

In addition, wave blow switches (65) (104) are used to transition from the state of pulse blow A to a different type of jet flow.
If you turn on, wave blow A (state number r4AJ)
and cycle blow switch (8B) (
105), cycle blow A (state number r
5AJ), and also the program blow switch (
67) If you turn on (10B), program blow A
(state number r6AJ).

In this way, since the jet flow is set to be a mild blow at the start of operation, even if the bather is a child or the elderly, there is no risk of the bather getting stuck in the gushing bath water and falling. It is also possible to prevent problems such as giving discomfort to the bather due to the excessive strength of the bath water that is ejected.

Further, since the sub-modes of the jet flow type always change in a preset order, the transition pattern of the sub-modes is easy for the bather to understand and easy to operate.

Furthermore, in Table 2, rONJ indicates that the display section of the operating jet flow type lights up; for example, in the case of pulse blow A, the pulse blow display section (138) and the selected pattern display section ( 142), the letters rAJ are lit.

In the case of program blows A-B and C, a program blow display section (141) and a selected pattern display section (145
) lights up, and the mild blow display section (136)
, the acupressure blow display section (137), the pulse blow display section (138), and the wave blow display section (1:19) are made to blink. In Table 2, "-" indicates no change, and "." indicates OFF state.

In the state transition of the jet flow form described above, the strength level of the jet flow is kept unchanged even if the jet flow form is changed.

In this way, it is possible to maintain the perceived strength level of the jet flow form before the change, so there is no need to change the strength level, and it is possible to avoid causing discomfort to the bather when changing the jet flow shape. can do. Further, the strength level may be changed to a medium level as the jet form is changed.

Furthermore, the spouting position of the bath water does not change even if the jet form is changed.

In this way, it is possible to maintain the spouting position of the bath water in the jet form before the change, so there is no need to perform an operation to change the spout position of the bath water, and when changing the jet form, it does not cause discomfort to bathers. You can choose not to give it.

In addition, as the spouting position of the bath water is changed, all the spout nozzles (2), (3), and (4) are opened to allow the user to experience the changed jet flow with their whole body, and then ,
It may also be possible to change the hot water spouting position to a desired position that is suitable for the jet flow form.

[Margin below]

(IV-4) Explanation of the operation for changing the bath spout position (IV-1
The operation for changing the ejection position of the bath in the operating procedure based on the flowchart of No. 3 will be explained with reference to the explanatory diagram shown in FIG. 36.

In this embodiment, the spout position of the bath water can be changed so that the jet is applied to the whole body, or can be changed so that the jet is applied only to a part of the body, depending on the bather's preference. That's what I do.

In other words, the hot water is ejected from the foot, dorsal, and ventral nozzles (2) (2) (3) (3) (4) (4)
Big hole operation where bath water is spouted from six at the same time (950)
is set to the initial state.

Then, from the six-person operation (950) where all of the 0N-OFF pattern switches for the foot side, dorsal side, and ventral side jet nozzles that repeat ON/OFF operation are ON, press any switch to turn them OFF. By (951) (95
2) (953), it is possible to perform four-hole operation (955) (9511) (957) with two jet nozzles deactivated.

In addition, by pressing the OFF switch of the foot, dorsal, and ventral jet nozzle pattern switches (951), (952), and (953), four-hole operation (95
5) Long hole operation (950) from (956) (957)
It can be restored.

In addition, from the four-hole operation (955) (95B) (957), by pressing the ON switch of the pattern switch for the foot side, dorsal side, and ventral side jet nozzle to turn it OFF (
960) to (965), and three major operations with two jet nozzles stopped (987) (988) (969)
It is also possible to do this.

In addition, by pressing the OFF switch of the foot, dorsal, and ventral jet nozzle pattern switches (980) to (985), two-person operation (967) (
96g) (969) Four-hole operation (955) (95
B) It can be returned to (957).

In addition, Table 3 shows the state transition of the above-mentioned bath water spouting position. Abdomen, back,
In addition to listing the dorsoventral foot), each state number is listed on the corresponding right side, and the operation switches (driving switch, dorsal switch, ventral switch, foot switch) and operation panel section (6) are listed laterally. Indicator lamps (dorsal/ventral side indicator lamps) that are lit by light emitting diodes are listed.

To explain specifically with reference to Table 3, the operation switch (
100), the foot side/ventral side jet nozzle (2) (2) (1) (3
)(4)' The large hole operation (950) where bath water is simultaneously spouted from the six (4) (state number is rl 11J') is started, and from the same state, the pattern switch for the back spout nozzle (
When 74) or (111) is pressed to turn it off, a transition is made to the four-hole operation (955) of the foot-side and ventral-side jet nozzles (3) (!I) (4) (4), and the state number becomes rollJ.

Furthermore, in the four-hole operation (state number r011J), the foot side indicator lamp (llZa) and ventral side indicator lamp (l13a) are lit.

In this way, when starting operation, the initial setting is set to long hole operation,
By turning the foot, dorsal, and ventral jet nozzle usage pattern switches 0N-OFF from the same large-hole operation, it is possible to easily change to four-hole operation, or two-person operation, or from two-person operation to four-hole operation or large-hole operation. This makes it easy to make changes. In Table 3, "-" indicates no change, and "." indicates OFF state.

Further, in the state transition of the bath water spouting position described above, the strength level does not change unless the blowing operation is stopped even if the spouting position of the bath is changed.

In this way, the strength level of the bath water spout position before the change can be maintained, so there is no need to change the strength level, which may cause discomfort to bathers when changing the bath water spout position. You can avoid it.

[Margin below]

(mV-5) Explanation of the state transition of strength levels in blow operation The strength levels in the operating procedure based on the flowchart of (IV-1) are "strong", "midway", "medium", "medium-weak", " The jet strength is set to five levels from ``weak'' to ``weak'', and the strength is varied taking into account the content of each jet form, and even if the strength level is displayed as ``medium'', the jet strength will differ depending on the jet form. It is something.

The state transitions of such strength levels are shown in Table 4.

In Table 4, the operation stop state, five strength levels (strong, middle, medium, medium-weak, and weak) and program blows A-B-C are listed vertically, and each state number is listed with the corresponding right The strength level indicator lamps (level strong indicator lamp, level There are 5 rows of display lamps (half-way indicator lamp, mid-level indicator lamp, medium-low level indicator lamp, low-level indicator lamp).

And the strength level is the bath jet force switch (68)
Or press and release (107) to increase the strength by one step, and on the other hand, press and release the bath water spout opening switch (69).
Alternatively, when you press and release (108), the strength changes by one level.

For example, if you turn on the operation switch (100), you will receive an operation stop message! “Medium” strength level from 13 (state number “0”)
(state number "3"), and from the same strength level "medium", press and release the eruption emphasis switch (6B) or (107) in the bathhouse, the strength level will transition to "midway" (state number "4"). , when the same switch (68) or (107) is pressed again and released, the strength level changes to "strong" (state number "5").

In addition, the bath outlet opening switch (6
When you press and release 9) or (108), the strength level changes to "medium/weak" (state number "2"), and the same switch (69)
Or press and release (10g) again to change the strength level to "
"Weak" (state number "1").

In addition, in program blow A-B-C, since the strength level is programmed in advance, the blowout bath water strength / local side switch (68) (69) or (107) (i
og), the strength level cannot be changed.

Further, in Table 4, "ON" indicates that the operating intensity level display lamp is lit.

Further, rONloFFJ indicates that the strength level display lamp blinks when program blow ABC, whose strength level cannot be changed, is operating. Further, "-" indicates no change, and "." indicates an OFF state.

In this way, since the strength level is set to "medium" at the start of the blow operation, the bather will not feel uncomfortable due to the excessive strength of the jet bath, and
Even when the bather is a child or an elderly person, it is possible to prevent problems such as the bather getting stuck in the gushing bath water and falling down.

In addition, since the strength level changes one step at a time when increasing or decreasing, it is possible to prevent sudden changes in the bather's sensation, and also prevent sudden increases in water pressure in piping etc. This prevents damage to piping caused by water hammer, etc.

[Margin below]

(IV-6) Explanation of priority order of main operation specifications (IV
Table 5 shows the priority order of the main operation specifications in the operation procedure based on the flowchart of No.-13.

Table 5 In this way, safety is ensured by giving top priority to stopping when the temperature is high, and by setting priorities for other operations, we aim to protect bathers and each component. , performs optimal control to ensure efficient operation.

(IV-7) Control timing for opening/closing of the valve body for adjusting the jet amount and changing the rotation speed of the circulation pump Opening/closing of the foot, dorsal, and ventral jet nozzles (2) (3) (4) and circulation The control timing for changing the rotation speed of the pump (P) is as shown in Tables 6 and 7 below.

[Margin below]

As shown in Table 6, when changing the jet flow form, if it is necessary to increase the rotation speed of the circulation pump (P), each jet nozzle (2
) (3) (4), and if it is necessary to lower the rotation speed of the circulation pump (P), give priority to the opening/closing operations of each jet nozzle (2), (3), and (4). Also, priority is given to changing the rotation speed of the circulation pump (P).

In addition, as shown in Table 7, when changing the number of jets, when reducing the number of jets, each jet nozzle (2) (3)
Prioritize lowering the rotation speed of the circulation pump (1') than the valve closing operation in (4), and when increasing the number of jets, each jet Prioritize the valve opening operations of nozzles (2), (3), and (4).

In this way, when changing the jet form or the number of jets, the opening and closing operations of each jet nozzle (2), (3), and (4),
By differentiating the control timing from the change in the rotational speed of the circulation pump (P), it is possible to prevent bathers from feeling uncomfortable due to changes in the jet flow strength, and also to reduce the discharge pressure of the circulation pump (P). It is possible to prevent damage to piping caused by water hammer, etc. by preventing sudden changes in the temperature.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a bubble-generating bathtub according to the present invention. FIG. 2 is a plan view of the bubble-generating bathtub. FIG. 3 is an explanatory diagram of the conceptual structure of the bubble-generating bathtub. FIG. 3a is an equivalent circuit diagram of an inverter, and FIG. 4 is an explanatory diagram of piping for an intake vibrator. FIG. 5 is an enlarged sectional view of the jet nozzle. FIG. 6 is a rear view of the jet nozzle. FIG. 7 is a cross-sectional view taken along the line II in FIG. 5. FIG. 8 is an enlarged sectional view of the motor for opening and closing the nozzle valve body. FIG. 9 is an enlarged sectional view of the air intake section. FIG. 10 is a sectional view taken along the line ■-■ in FIG. 9. FIG. 11 is a partially cutaway front view of the pump drive motor and circulation pump. FIG. 12 is a sectional view of the filter. FIG. 13 is a plan view of the operation panel section. FIG. 14 is a plan view of the remote controller. FIG. 15 is a side view of the remote controller. FIG. 16a and FIG. 16b are explanatory diagrams of the jetting amount vs. jetting pressure characteristic. Figures 17a and 17b are explanatory diagrams of jet nozzle characteristics. FIG. 18 is an operation timing chart of each jet nozzle and circulation pump during mild blowing. FIG. 19 is an operation timing chart of each jet nozzle and circulation pump in child safety blow. FIG. 20 is an operation timing chart of each jet nozzle and circulation pump in acupressure blowing. FIG. 21 is an operation timing chart of each jet nozzle and circulation pump during pulse blowing. FIG. 22 is an operation timing chart of each jet nozzle and circulation pump in wave blow A. FIG. 23 is an operation timing chart of each jet nozzle and circulation pump in wave blow B. FIG. 24 is an operation timing chart of each jet nozzle and circulation pump in wave blow C. FIG. 25 is an operation timing chart of each jet nozzle and circulation pump in cycle blow AB. FIG. 26 is an operation timing chart of each jet nozzle and circulation pump in cycle blow C. 27 to 32 are flowcharts of the operation of the bubble generating bathtub. FIG. 33 is an explanatory diagram of the water level detection reference position. FIG. 34 is an explanatory diagram of water level detection specifications. FIG. 35 is an explanatory diagram of water temperature detection specifications. FIG. 36 is an explanatory diagram of changing the bath spout position. (A): Bubble generating bathtub (P): Circulation pump (C) Two control parts (1): Bathtub body (2): Foot side spout nozzle (3): Dorsal side spout nozzle (4): Ventral side spout nozzle ( 10): Bath bath suction vibrator (11): Bath bath suction vibrator Patent applicant: Totoki Co., Ltd. Representative: Ken Matsuo - Department Figure 2 Figure 4 Figure 6 Figure 7 Figure 1e Figure 8 Figure 12 Fig. 18 (Mild Bufu Me Fiming Night) Fig. 16a Fig. 17a Fig. 16b Fig. 17b 〉Bunaiton Fig. 20 (11 loaves)゛゛1 imine r+-e4) Fig. 80 Fig. 31 From deception LiF ↓ し L Fig. 33 Fig. 34 Fig. 35

Claims (1)

[Claims] 1) A bath water circulation channel consisting of a bath water suction channel and a bath water forced flow channel is interposed between the bathtub body and a circulation pump installed outside the bathtub body. , multiple ends of the forced bath water flow path are opened into the bathtub body, and an air intake part is connected to the forced bath water flow path so that bath water mixed with air bubbles can be spouted into the bathroom body. In the bubble generating bathtub configured, an inverter whose output frequency can be changed and controlled by a control unit is interposed between the circulation pump motor and the power source, so that the rotation speed of the circulation pump can be controlled. A bubble-generating bathtub that allows the rotation speed of the circulation pump to be controlled.