JP2747032B2 - Bubble generation bath tub with variable ejection amount and bubble mixing amount - Google Patents

Description

The present invention relates to a bubble generating bath tub that is highly safe at the time of bathing and that can be inexpensively blow-controlled.

(B) Conventional technology Conventionally, as one form of a bathtub, there is a bubble generating bathtub provided with a bubble generating device separately from a bathtub body, and the bubble generating bathtub generates bubbles in the bathtub by the bubble generating device. By doing so, massage the body with bubbles,
It is configured so that a feeling of taking a bath can be enhanced.

That is, such a bubble-generating bathtub is provided with a spout on the side wall of the bathtub body, a circulating pump for circulating bath water through the circulating pump is connected to the spout, and an ejector effect is provided near the spout. An air suction unit that allows air to be mixed into the bath water is installed using this.

With this configuration, by operating the circulation pump, the bath water can be spouted from the spout on the side wall of the bathtub body, and at the time of the spout, the air is suctioned at a negative pressure from the air suction unit, and the bath water is injected into the bath water. By mixing air and jetting out hot water mixed with air from the jet port, air bubbles are generated in the bath tub and applied to the bather's body, thereby improving the massage effect and the like.

In recent years, as described in Japanese Utility Model Application Laid-Open No. 63-100035, an electric motor used as a pump driving device for driving a circulating pump is controlled by an inverter to periodically change the injection power of bath water. Something that can be done has also been proposed.

(C) Problems to be Solved by the Invention However, the above-mentioned bubble generating bath still has the following disadvantages.

That is, in the above-described bubble generating bath, the change in the amount and pressure of the jet of bath water is mainly performed by controlling the drive of the circulation pump, but since only one circulation pump is used,
It is necessary to use a large-capacity pump, so that a large installation space and an electric motor and its control device also need to be increased in size.

In addition, when the electric motor is controlled by an inverter in order to change the amount and pressure of the bath water, the insulation between the bathtub and the circulating pump is not sufficiently achieved due to the high-frequency components generated during the switching operation by the switching element. In this case, the leakage current flows to the bathtub side, and the danger to the human body increases.

In addition, the bubble generation bath is expensive because the inverter is still expensive.

An object of the present invention is to provide a bubble generating bathtub that can solve the above-described problems.

(D) Means for Solving the Problems The present invention provides a bath water circulation flow path comprising a bath water suction flow path and a bath hot water supply flow path between a bathtub body and a circulation pump. An air intake section is connected to the hot water supply channel, and the air taken in by the air intake section is mixed into the bath water in the hot water supply channel, and bubbles are mixed into the bathtub body from a plurality of jet nozzles. In the bubble generating bath tub capable of ejecting the hot water, the ejection nozzle is formed by an ejection amount variable nozzle capable of changing the ejection amount, and a bubble amount adjusting valve is provided between the air intake part and the bath hot water supply channel. The present invention relates to a bubble generation bath capable of changing the ejection amount and the bubble mixing amount, wherein the driving of the ejection nozzle and the bubble amount adjusting valve is adjustable by a control device.

(E) Function and Effect In the present invention, the ejection nozzle is formed by an ejection amount variable ejection nozzle, and a bubble amount adjustment valve is provided between the air intake section and the bath hot water supply channel, so that the ejection nozzle and the bubble amount Since the drive of the control valve is controlled by the control device, it is possible to easily adjust the ejection amount and ejection pressure of the bath water ejected from the ejection nozzle into the bathtub body,
Through the air intake section and the intake air distribution pipe, it is possible to adjust the amount of air bubbles mixed into the bath water jetted from the jet nozzle into the bathtub body, and the bather can adjust the bath water jet volume and jet pressure. In addition, it is possible to enjoy various blow modes having different amounts of mixed bubbles, that is, different sensational strengths.

Since the installation space required by the large-capacity circulation pump can be made unnecessary, the bathroom can be easily designed.

Since high-grade control such as an inverter required for drive control of a large-capacity circulating pump can be omitted, the control device can be inexpensive.

(F) Example Hereinafter, the bubble generation bath A according to the present invention will be described in detail with reference to examples shown in the accompanying drawings.

1 and 2 show the overall structure of the bubble generating bathtub A. The bubble generating bathtub A is ejected on the front and rear walls and the left and right side walls of the bathtub body 1 formed in a box shape having an upper surface opening, respectively. A nozzle 2, a back side ejection nozzle 3, and a ventral side ejection nozzle 4 are provided.

The tub body 1 has a flange-shaped edge with a fixed width around the periphery.
1a is formed, and an air intake portion 5 is provided at the same edge portion 1a.

Further, the air intake section 5 is provided with a bubble amount adjustment valve Va and a bubble amount adjustment valve body driving motor M2 for driving the adjustment valve Va.

In the bubble tub A, a pump protection case 9 is provided around the outer periphery of the bathtub body 1.
As shown in FIGS. 1 and 3, a circulating pump P for circulating bath water in the bathtub body 1, a filter R for filtering the bath water circulated by the circulating pump P, and driving the pump P A pump driving device M, a pump driving device M, a nozzle driving device M1, which will be described later, and a valve body driving motor M2 for controlling the amount of bubbles.
And a control unit C for controlling the driving of the driving device of the electric three-way valve Q
Are provided.

In addition, Q1 is a hot water pipe for discarding a part of bath water at the time of back washing.

A bath water circulation channel D is interposed between the bathtub body 1 and the circulation pump P.

That is, the bath water circulation flow path D includes a bath water suction pipe (bath water suction path) 10 for sending bath water from the bubble generation bath A to the circulation pump P, and a bath from the circulation pump P to the bath A. It is composed of a hot water supply pipe (bath tank high power supply channel) 11 for supplying hot water.

The bath hot water suction pipe 10 has one end opened at the lower portion of the bathtub body 1 to form a suction port 22, and the other end communicates with the water supply port of the circulation pump P to supply bath water to the circulation pump P. I try to inhale.

On the other hand, one end of the bath hot water pipe 11 has a circulation pump P
And the other end thereof is connected to the above-mentioned foot-side, back-side, and abdomen-side jet nozzles 2, 3, and 4, respectively.

Further, as shown in FIG. 4, each of the ejection nozzles 2, 3, and 4
It is formed by an ejection amount variable type ejection nozzle.

That is, as shown in FIG.
The nozzle casing 40 in which the direction is freely variable is formed, and an air entrapment chamber 41 is formed behind the nozzle casing 40.
Behind 41, a flow rate adjusting chamber 44 is formed via a partition 43 provided with a communication hole 42.

The rear wall 45 of the flow rate adjustment chamber 44 has a nozzle driving device M1 for adjusting the opening amount of the communication hole 42 to finely adjust the ejection amount and ejection pressure of the bath water ejected from the nozzle throat 39.
Is installed.

In the present embodiment, the nozzle driving device M1 includes a stepping motor 46a, a ball screw (not shown) for converting the rotational movement of the motor into the forward / backward movement of the valve shaft 46, and attached to the tip of the valve shaft 46. And a valve element 47 that opens and closes the communication hole 42 and adjusts the amount and pressure of the hot water spouted from the nozzle throat 39.

With this configuration, the nozzle driving device M1 is driven by the control signal from the control unit C described later to advance and retreat the valve shaft 46 and the valve body 47 integrated with the valve shaft 46 toward the communication hole 42,
By adjusting the gap between them, that is, the opening amount, it is possible to easily adjust the ejection amount and ejection pressure of the bath water ejected into the bathtub body 1.

Further, as shown in FIG. 3, a pressure detection sensor 12 for detecting the pressure of the bath water fed into the pipe 11 is mounted in the middle of the bath hot water supply pipe 11.

Then, a detection signal from the pressure detection sensor 12 is sent to a control unit C described later, and the control unit C controls the nozzle driving device.
By controlling the drive of M1, the opening amount of the valve body 47 is adjusted, and the ejection pressure and the ejection amount of the bath water ejected from each ejection nozzle 2, 3, 4 are controlled as a whole or separately. Making it possible.

The pressure detection sensor 12 can also be used as a water level sensor for detecting the amount of hot water in the bathtub body 1.

As shown in FIG. 3, an intake air distribution pipe 5a from the air intake section 5 is connected to the ejection nozzles 2, 3, and 4.

Then, air is mixed into the bath water through the intake air distribution pipes 5a, 5b, 5c by using the ejector effect by the ejection pressure generated by operating the circulation pump P, and the bath water containing air bubbles is removed. It can be ejected from the ejection nozzles 2, 3, and 4.

Further, as shown in FIG. 5, in the present embodiment, the air intake section 5 is provided through a plurality of intake air distribution pipes 5a, 5b, 5c.
It is connected to each of the jet nozzles 2, 3, and 4.

And, in each intake air distribution pipe 5a, 5b, 5c,
A bubble amount control valve Va-1, Va-2, Va-3 is attached, and each of the bubble amount control valves Va-1, Va-2, Va-3 is driven by a valve body driving motor device M2. Is configured.

Further, as the valve driving motor M2, a stepping motor or the like can be used.

With this configuration, the valve body drive motor M2 is driven by the control signal from the control unit C described later to adjust the opening / closing amounts of the respective bubble amount adjustment valves Va-1, Va-2, and Va-3, It is possible to easily adjust the amount of air bubbles mixed in the bath water jetted into the bathtub body 1.

Next, the configuration of the control unit C for controlling the pump driving device M and the nozzle driving device M1 will be described.

The control unit C includes a microprocessor as shown in FIG.
It comprises an MPU, input / output interfaces 13 and 14, a memory 15 composed of a ROM and a RAM, and a timer 16.

In the above configuration, the input interface 13
Include a detection sensor 6 for use in detecting an abnormality of the circulation pump P, a valve reference position detection sensor 17 for detecting the opening / closing amount of the valve element 47 driven by the nozzle driving device M1, a bubble amount adjustment valve Va
Valve reference position detection sensor 18 for detecting the opening / closing amount of -1, Va-2, Va-3, pressure detection sensor 12 for detecting the water pressure of the hot water supply pipe 11, and detecting the temperature of the bath water in the bathtub body 1. An operating unit / light receiving unit 21 for receiving a driving signal based on infrared rays from a remote controller 20 and a bath water temperature detecting sensor T is connected.

In the present embodiment, the light receiving section 21 is connected to the air intake section 5.
It is provided above.

On the other hand, to the output interface 14, a pump driving device M, a nozzle driving device M1, a valve body driving motor M2, and an electric three-way valve Q are connected.

In addition, the memory 15 stores the above-described pump driving device M, nozzle driving device M1, valve body driving motor M2, and electric three-way valve based on output signals from the above-described sensors and driving signals from the remote controller 20. A driving order program for driving the driving unit of Q is stored.

Incidentally, the above-mentioned bubble-generating bath A is substantially the same as that described in
The configuration can be substantially the same as the configuration of the bubble generation bathtub disclosed in -331772.

According to the present invention, as described above, the ejection nozzles 2, 3, and 4 are formed by the ejection amount variable ejection nozzles, and the intake air distribution pipe 5 that connects the air intake section 5 and the bath hot water supply pipe 11 is provided.
a, 5b, and 5c are configured such that the bubble amount control valves Va-1, Va-2, and Va-3 are driven by a valve body driving motor M2, and are ejected by a control signal from a control unit C. Nozzles 2,3,
The fourth embodiment is characterized in that the nozzle driving device M1 and the valve body driving motor M2 are driven.

Then, by driving the nozzle driving device M1 and the valve body driving motor M2 based on a control signal from the control unit C, the ejection nozzles 2, 3, and 4 and the bubble amount adjusting valves Va-1, Va-2, Va
-3 can be easily operated and the opening / closing amount of the bath water can be easily adjusted by simply adjusting the opening / closing amount of the bath water, which can be easily adjusted from the ejection nozzles 2, 3, and 4 into the bathtub body 1.
The amount of air bubbles mixed in the bath can be adjusted, and the bather enjoys various blow modes (for example, mild blow, shiatsu blow, massage blow, etc. described in Japanese Patent Application No. 63-331772). Can be.

For example, as shown in FIG. 6 and FIG. 7, it is possible to obtain a blow mode in which the amount of hot water jetted and the amount of mixed bubbles are changed sinusoidally.

Further, when the blow mode can be changed for each of the ejection nozzles 2, 3, and 4, more diversified blow modes can be enjoyed.

In addition, the ejection nozzles 2, 3, and 4 and the bubble amount control valves Va-1, Va-
2 、 Va-3 drive and control is nozzle driving device M1 consisting of stepping motor and ball screw and valve driving motor
Since it can be performed by M2 and its control means, an expensive inverter required for controlling the circulation pump P can be eliminated, and the bubble generation bath A can be manufactured at low cost.

Further, it is possible to change the blow mode without performing inverter control, and it is possible to reduce as much as possible the possibility of electric shock accidents related to human life caused by high frequency components.

Furthermore, since the installation space required by the large-capacity circulation pump P can be eliminated, the bathroom can be easily designed.

In addition, since the bath water containing air bubbles can be jetted for each of the jet nozzles 2, 3, and 4, any one of the jet nozzles 2, 3, and 4 can be jetted.
Even if the device becomes unusable due to a failure or the like, the bubble-containing bath water can be ejected from the other ejection nozzles, and the amount of bubbles can be finely adjusted to enjoy the bubble bath.

In the present invention, as the valve body driving motor M2 for the ejection nozzles 2, 3, and 4 and the nozzle driving device M2 for the bubble amount control valves Va-1, Va-2, and Va-3, various types other than a stepping motor are used. For example, an electric motor for armature voltage control or field control, an air motor having a variable speed device, a hydraulic motor, an internal combustion engine, or the like can be used.

When sufficient insulation measures are taken, an electric motor controlled by inverter can be used.

[Brief description of the drawings]

FIG. 1 is a perspective view of a bubble generating bath of the present invention, FIG. 2 is a plan view of the bath, FIG. 3 is a block diagram of a piping system and a control system of the bubble generating bath, and FIG. FIG. 5 is an explanatory view of an attached state of the bubble amount adjusting valve, FIG. 6 is a graph showing a blow mode when the ejection amount is changed in a sine function curve, and FIG. 7 is a sine function curve of the bubble amount. 7 is a graph showing a blow mode when the pressure is changed in a horizontal direction. (A): Bubble generation bath (D): Bath hot water circulation channel (M1): Nozzle driving device (M2): Motor for driving valve body for adjusting bubble amount (P): Circulation pump (Va-1) (Va- 2) (Va-3): Bubble amount control valve (2) (3) (4): Jet nozzle

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Mitsuaki Hashida 2-81-1, Honmura, Chigasaki-shi, Kanagawa Prefecture Tochiki Kikai Co., Ltd. Chigasaki Plant (72) Inventor Koichi Uchiyama 2-81-1, Honmura, Chigasaki-shi, Kanagawa Prefecture No. Tochi Kiki Co., Ltd. Chigasaki Plant (72) Inventor Kenji Moriyama 2-8-1, Honmura, Chigasaki City, Kanagawa Prefecture Tochi Koki Co., Ltd. Chigasaki Plant

Claims (1)

(57) [Claims] 1. A hot-water bath circulation channel comprising a hot-water bath suction flow channel and a hot-water bath strong-feeding channel is interposed between a bathtub body and a circulation pump, and an air intake section is provided in the hot-water bath strong-feeding channel. And the air taken in by the air intake unit is mixed into the bath water in the bath water strong flow path, so that the bubble-containing bath water can be jetted out of the plurality of jet nozzles into the bath tub body. In the generation bathtub, the ejection nozzle is formed by an ejection amount variable nozzle capable of changing the ejection amount, and a bubble amount adjustment valve is provided between the air intake section and the bath hot water supply channel, and the ejection device is controlled by the control device. And a bubble generation bath capable of changing the ejection amount and the bubble mixing amount, characterized in that the driving of the bubble amount control valve can be adjusted.