JP2002095719A - Bubble generating bathtub - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bubble generating bathtub whose own function can easily and inexpensively be added to an existing bathtub. SOLUTION: A circulatory pump unit fixed in a case to be inserted and fixed in an aperture of the bathtub is structurally available to be installed and removed from the inside of the bathtub.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bubble generating bathtub having a circulating pump fixed to a side wall of a bathtub to circulate the bathwater and to blow out a bubble-containing bathwater into the bathtub, and particularly to an existing bathtub. The present invention relates to a bubble generation bath suitable for retrofitting.

[0002]

2. Description of the Related Art In a conventional bubble-generating bathtub in which a circulation pump unit is fixed to a side wall of a bathtub, a circulation pump integrally formed with a bath water inlet is fixed to an opening of the wall surface of the bathtub. Bath water jets provided on the bathtub wall are connected by a circulation channel so that the bath water can be circulated, and air is mixed by the ejector effect from the air inlet pipe connected to the bath water jets to mix bubbles. A type that can eject a jet,
A circulating pump unit having a bath water inlet and a bath outlet is inserted into a pump fixing case fixed to the opening on the wall of the bathtub, and an air inlet tube is connected to allow a jet mixed with air bubbles to be ejected. Are known. The member fixed to the bathtub side wall is sandwiched and fixed between the bathtub wall via a packing, and an adhesive is applied around the member located on the back surface side of the bathtub to make the fixing and the prevention of water leakage more firm. The air introduction pipe and the former circulation channel are arranged along the side wall of the bathtub rear surface.

[0003]

In the structure of the conventional bubble-generating bath, the necessity of arranging piping such as an air introduction pipe and a circulation channel on the back side of the side wall of the bath and the method of fixing a member to be fixed to the side wall of the bath are because of the necessity. When retrofitting the function of the bubble generating bathtub to the existing bathtub, it is necessary to take measures such as removing the bathtub and re-installing it after remodeling or replacing the bathtub, which is a large-scale work that can no longer be called retrofitting I will. Also, when the bathtub flange is embedded in the bathroom wall, the removal of the bathtub itself is difficult, so retrofitting the function of the bubble generating bathtub is almost impossible without remodeling the bathroom. . The present invention has been made in view of the above problems, and an object of the present invention is to make it possible to easily trace functions to an existing bathtub at low cost and without the need for remodeling a bathroom or removing a bathtub itself, and performing installation. It is to provide a bubble generating bathtub.

[0004]

In order to achieve the above object, a circulating pump unit having a bath water inlet and a bath outlet is fixed to a side wall of a bath tub. The circulating pump unit is installed in a bubble generating bath tub configured to circulate hot water and mix air by an ejector effect from an air inlet connected to the bath hot water outlet to blow out a jet mixed with bubbles into the bath tub. Since the structure is fixed to the bathtub from the inside of the bathtub, it is not necessary to remove the bathtub itself when retrofitting the function of the bubble generating bathtub, and the construction can be performed with the bathtub installed.

[0005] Therefore, it is possible to greatly reduce the work load and cost as compared with the case where a conventional bubble generating bath is retrofitted.

In the second aspect, the pump fixing case is inserted and fixed from the inside of the bathtub into an opening formed in the side wall of the bathtub, and the circulating pump unit is inserted and fixed in the pump fixing case. When performing, there is no need to remove the pump fixing case fixed to the bathtub,
Since maintenance can be performed by removing the circulation pump unit from the pump fixing case, maintenance workability is significantly improved.

Further, when the pump fixing case is attached to the bathtub, water leakage from the bathtub and the pump fixing case can be easily confirmed and corrected, and the reliability is greatly improved.

According to a third aspect, the pump fixing case includes:
An outer case having a locking claw inserted into the bathtub opening via a packing, and being inserted and screwed into the outer case, and developed so that the locking claw of the outer case is locked to the back surface of the bathtub wall. Since it is composed of the inner case and the inner case, not only can the abutment claw of the outer case be securely contacted with the back of the bathtub, but also by screwing the inner case, the distance between the claw and the flange of the outer case can be reduced. Since the adjustment can be performed, it is possible to avoid a trouble at the time of installation due to a variation in the thickness of the bathtub.

According to a fourth aspect of the present invention, a cap is formed between the periphery of the outer case and the back surface of the bathtub wall to form a substantially donut-shaped closed space around the locking claw portion, and an adhesive is provided in the cap. , It is possible to more firmly fix the bathtub and the pump fixing case and prevent leakage of water from between the bathtub and the pump fixing case.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to further clarify the configuration and operation of the present invention described above, a preferred embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view showing a state in which a circulating pump unit is mounted in a bubble generating bathtub of the present invention, FIG. 2 is a cross-sectional view showing a method of assembling a pump fixing case, and FIG. 3 is a perspective view showing a bathtub mounting state in a bathroom. For convenience of explanation, the front side will be referred to as the front side, and the back side will be referred to as the rear side, facing the circulation pump unit from the inside of the bathtub.

First, a procedure for retrofitting the function of the bubble generating bathtub to an existing bathtub according to the present invention will be described.
As shown in FIG. 3, the bathtub 1 generally has a deck portion 3 around the upper edge surface 2 of the bathtub, and an apron 4 on one long side wall portion.
It is constructed and constructed. When the function of the bubble-generating bathtub is to be retrofitted in this state, work from the backside of the bathtub is not possible because the surroundings of the bathtub are hidden by the frame constituting the bathroom, and the work is completed by work from the inside of the bathtub. There must be. In addition, this condition makes it difficult to add the function of the bubble generating bathtub to the existing bathtub.

When the function of the bubble generating bathtub is added to the existing bathtub according to the present invention, a predetermined opening 5 is formed at a predetermined position of the existing bathtub 1 from the inside of the bathtub.

Next, the pump fixing case 10 is inserted into the opening 5 via a packing 25. The packing 25 is formed into a substantially U-shaped cross section in consideration of reliability for preventing water leakage and simplicity of operation. The packing 25 is configured so that it can be attached to the opening by itself and does not easily fall off.

The pump fixing case 10 comprises an outer case 11 and an inner case 14, and the outer case 11 is further constituted by a first outer case 12 located at the rear and a second outer case 13 located at the front.

The inner case 14 has a cylindrical shape having a flange portion 18 at a front end, and a screw portion 15 is formed on a rear outer periphery so as to be screwed with the first outer case 12.

A circumferential groove 16 is formed on the outer periphery near the rear end.
The groove 16 is communicated with the front flange portion 18 by a plurality of small holes 17 provided inside the cylindrical portion 26.

The first outer case 12 has a substantially cylindrical shape having a locking claw portion 19 at a rear end portion, and a screw portion 2 to be screwed with the screw portion 15 of the inner case 14 on a front inner periphery.
0 is formed, and the front end portion has an uneven shape 2 over the entire circumference.
1 is provided. The locking claw portion 19 can be bent from the base.

In the embodiment of the present invention, the locking claw 19
Has a structure that bends from the base, but a link pivot may be provided at the base to allow the outer case to expand in the radial direction.

The second outer case 13 has a cylindrical shape having a flange 27 at the front end, and has a rear end fitted with the uneven shape 21 at the end of the first outer case 12 to restrict rotation. The uneven shape 22 is formed.

Since the second outer case 13 has an inner diameter slightly larger than the outer diameter of the cylindrical portion of the inner case 14, the second outer case 13 can freely move in the axial and circumferential directions without being hindered by the screw portion 15 of the inner case 14. it can.

The front opening is further provided with a chamfer 23 into which an O-ring 24 is fitted.

The assembly of the pump fixing case 10 will be described with reference to FIG. After the packing 25 is attached to the bathtub opening 5, the inner case 14, the first outer case 12, and the second outer case 13 are inserted in a temporarily assembled state. In this state, since the locking claw portion 19 of the first outer case 12 has not been deformed, the bathtub opening 5 to which the packing 25 is attached is attached.
Can be easily inserted into

When the inner case 14 is rotated in a state where the first outer case 12 and the second outer case 13 are fitted with both the concave and convex portions 21 and 22 and the rotation is restricted, the inner portions are screwed together by the screw portions 15 and 20. Case 14 is Y in the figure.
At this time, the rear end of the inner case 14 interferes with the locking claw 19 of the first outer case 12 and the locking claw 19 of the first outer case 12
Is developed and deformed in the direction of M in the figure.

When the inner case 14 moves to a predetermined position, the locking claws 19 of the first outer case 12 are completely developed and abut against the packing 25 on the back surface of the bathtub 1, and the bathtub is connected to the flange 18 of the inner case 14. The bathtub wall around the opening 5 is sandwiched via the packing 25.

When the inner case 14 is further tightened, the packing 25 is appropriately compressed, so that water leakage between the bathtub 1 and the outer case 11 can be prevented.

Since an O-ring 24 is provided at the front opening of the outer case 11, the O-ring 24 is in a state where the inner case 14 is tightened.
And presses against the outer case 11 to prevent water leakage from between the inner case 14 and the outer case 11.

In order to confirm the presence or absence of water leakage between the pump fixing case 10 and the bathtub 1, a water absorbing sheet or the like is disposed below the pump fixing case 10 on the back side of the bathtub 1, and the opening of the pump fixing case 10 and the inner case 14 are provided. A jig is attached to the fine hole 17 opened in the flange portion 18 to close it. After that, it is effective to store water in a bathtub, leave it for a certain period of time, remove the jig after draining, and confirm the dripping of water on the water absorbing sheet.

If water leakage is found, it is possible to take measures such as retightening the inner case 14 at the site to stop the water leakage, which is effective in improving reliability.

After it is confirmed that there is no water leakage, a substantially donut-shaped material made of synthetic rubber or the like is opened from the opening of the pump fixing case 10 in order to more securely fix the pump fixing case 10 and prevent water leakage. The cap 28 is inserted in a twisted state, deployed on the back side of the bathtub, assembled afterwards so that the inner case 14 is inserted into the inner hole of the cap 28, and provided on the front flange portion 18 of the inner case 14. A predetermined amount of adhesive is pressed through the hole 17.

The press-fitted adhesive flows out of the groove 16 provided on the outer periphery at the rear of the inner case 14 through the small holes, and is filled into the space surrounded by the cap 28, the back surface of the bathtub 1 and the inner case 14, and adheres. After the agent has hardened, the site is firmly fixed, and high reliability can be exhibited in preventing water leakage. The pores 17 provided in the inner case 14 are filled with the adhesive when the adhesive is pressed and completely closed.

The circulating pump unit 30 inserted into and fixed to the pump fixing case 10 from the inner surface side of the bathtub 1 has a substantially hat shape, and is provided with a bath water inlet 50 and a bath water outlet (not shown) at the front.

An air introduction path having a check valve (not shown) is communicated with the inside of the bath water outlet, so that the air can be sucked by the ejector effect and jetted out as a jet mixed with bubbles.

An O-ring 32 is disposed on the outer periphery of the circulation pump portion 31 over two lines, and is pressed against the inner periphery of the inner case 14 to prevent water leakage from between them.

The circulating pump unit 30 is removably inserted into and fixed to the pump fixing case 10 from the inner surface side of the bathtub 1. Therefore, when performing maintenance on the circulating pump unit 30, the circulating pump unit itself can be easily removed. Workability is greatly improved.

Reference numeral 34 denotes a connector of a pump motor 33 incorporated in the circulation pump unit 30 for connecting a cord 40 taken from a hole 6 opened in the bathroom wall. Code 4
The other end of 0 is connected to a control box (not shown) provided on the outer wall of the bathroom. A controller 41 is also connected to the control box and controls the driving of the circulation pump unit 30.

In the embodiment of the present invention, the control box is of a wall-mounted type, and the controller is of a wall-mounted type. However, in other embodiments, for example, a floor-standing control box installed outside a bathroom or an upper edge of a bathtub. The controller may be attached to the controller.

The effect of the circulating pump on the bath water in the bubble generating bath according to the present invention will be described below. The bath water flowing from the bath water inlet 50 provided in front of the circulation pump unit 30 is centrifugally pressurized by the rotation of the impeller 51 and is discharged from a discharge nozzle opened to a pump volute (not shown). An air introduction path is opened in the vicinity of the ejection nozzle, and the air is sucked by the ejector effect and ejected from the bathwater ejection port as a jet mixed with bubbles.

The direction of the jet can be changed by a throat (not shown).

A suction port cover 60 is provided in front of the circulation pump unit 30, and a filter 61 is disposed at the bath water suction port 50 to prevent foreign matter from flowing into the circulation pump.

A check valve is provided in the middle of the air introduction path to prevent the bath water from flowing out through the air introduction path when the circulation pump is not driven.

As described above, according to the present invention, when the function of the bubble generating bath is retrofitted to the existing bath, not only the bath can be removed easily and inexpensively without removing the bath, but also during maintenance of the pump. Has an excellent effect that the work can be easily performed.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a state in which a circulation pump unit is installed in a bubble generation bathtub of the present invention.

FIG. 2 is a sectional view showing a method of assembling the pump fixing case.

FIG. 3 is a perspective view showing a bathtub installation state in the bathroom.

[Explanation of symbols]

 1: Bathtub 5: Opening 10: Pump fixed case 11: Outer case 14: Inner case 19: Locking claw 30: Circulation pump unit 40: Cord 41: Controller 60: Suction port cover

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yukihiro Kudo 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu-shi, Fukuoka Tochiki Kiki Co., Ltd. (72) Katsumi Sakamoto 2, Nakajima, Kitakyushu-shi, Fukuoka F-term (reference) No. 1-1, Totoki Equipment Co., Ltd. 4C074 LL07 MM04 QQ24 QQ31 QQ36 4C094 AA01 BB16 EE22 GG03

Claims (4)

[Claims] 1. A circulating pump unit having a bath water inlet and a bath water outlet is fixed to a side wall of a bath tub to circulate the bath water, and an ejector effect is provided from an air inlet connected to the bath water outlet. An air bubble generation bath, wherein the circulation pump unit is installed and fixed to an existing bath from the inside of the bath, in a bubble generation bath which is configured to blow air into the bath with air mixed therein. 2. The bubble generation according to claim 1, wherein a pump fixing case is inserted and fixed from the inside of the bathtub into an opening formed in a side wall of the bathtub, and a circulation pump unit is inserted and fixed into the pump fixing case. Bathtub. 3. The pump fixing case includes an outer case having a locking claw inserted into a bathtub opening through a packing, and is screwed into the outer case. 3. The bubble generating bathtub according to claim 2, comprising an inner case which is developed so as to be engaged with the back surface of the bathtub wall. 4. A cap that forms a substantially donut-shaped closed space around the locking claw portion is provided between the periphery of the outer case and the back surface of the bathtub wall, and the cap is filled with an adhesive. The bubble generating bathtub according to claim 3, wherein: