JPH02307472A - Air bubble generating bathtub - Google Patents

Abstract

PURPOSE:To enhance safety at the time of bathing and to perform inexpensive blow control by interposing a belt drive type variable speed gear between a recirculation pump and a pump driving apparatus. CONSTITUTION:In an air bubble generating bathtub A, a belt drive type variable speed gear G is interposed between a recirculation pump P and the pump driving apparatus M for driving said recirculation pump P. Since the belt drive type variable speed gear G is interposed between the recirculation pump P and the pump driving apparatus M, the number of rotations of the recirculation pump P is changed by changing the effective diameters of a pulley steplessly and the jet amount or pressure of bath hot water can arbitrarily changed and a bathing person can enjoy various blow forms. The change of the blow forms becomes possible without performing inverter control and the possibility of an electric shock accident endangering life due to a high frequency component can be reduced as low as possible.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a bubble-generating bathtub that is highly safe during bathing and allows inexpensive blow control.

(B) Conventional technology Conventionally, as one type of bathtub, there is a bubble-generating bathtub that is equipped with a bubble-generating device separate from the bathtub body. By doing this, the air bubbles cause pine surges on the body,
It is designed to enhance the feeling of bathing.

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

With this configuration, by operating the circulation pump, bath water can be spewed out from the spout on the side wall of the bathtub body, and at the time of spouting, air is sucked under negative pressure from the air suction part and poured into the bath water. By mixing air and ejecting air-mixed bath water from the spout, bubbles are generated in the bathtub and applied to the body of the bather, thereby increasing the pine surge effect.

In recent years, as described in Utility Model Application No. 63-100035, the ejection force of bath water can be changed periodically by controlling an electric motor used as a pump drive device for driving a circulation pump using an inverter. Products that can do this have also been developed.

(c) Problems to be Solved by the Invention However, the above-mentioned bubble-generating bathtub still had the following drawbacks.

That is, in the above-described bubble-generating bathtub, when the electric motor is controlled by an inverter in order to change the spouting amount and jetting pressure of bath water, the high-frequency component generated during the switching operation of the switching element causes the unit between the bathtub and the circulation pump to ! ! If there is not enough green space, the danger to humans will increase.

Furthermore, since inverters are still expensive, bubble generating bathtubs are also expensive.

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

(d) Means for Solving the Problems The present invention provides a bath water circulation wave path consisting of a bath water suction flow path and a bath water forced flow path between the bathtub body and the circulation pump, and An air intake section is connected in communication with the forced flow channel, and the air taken in by the air intake section is mixed into the bath water in the bath water forced flow channel, and a bubble-containing bath is introduced into the bathtub body from each jet nozzle. This invention relates to a bubble-generating bathtub capable of spouting hot water, characterized in that a belt drive type transmission device is interposed between a circulation pump and a pump drive device.

(e) Functions and Effects In the present invention, since a belt drive type transmission device is interposed between the circulation pump and the pump drive device, the rotation speed of the circulation pump can be increased by steplessly changing the effective diameter of the pulley. It is possible to change the amount and pressure of the bath water steplessly, allowing bathers to enjoy various types of blowing.

It is possible to change the blow mode without performing inverter control, and the possibility of life-threatening electric shock accidents caused by high frequency components can be reduced as much as possible.

Furthermore, since an expensive inverter is not required, the bubble generating bathtub can be manufactured at low cost.

(F) Example Hereinafter, the bubble-generating bathtub A according to the present invention will be specifically explained with reference to the example shown in the attached drawings.

Figures 1 and 2 show the overall structure of the bubble-generating bathtub A. The bubble-generating bathtub A has foot-side spouts on the front and rear walls and left and right side walls of a box-shaped bathtub body l with an opening on the top. Nozzle 2. A dorsal side jet nozzle 3 and a ventral side jet nozzle 4 are provided.

The bathtub body 1 has a flange-shaped edge 1 having a constant width on the periphery.
a, and an air intake portion 5 is provided on the same edge portion 1a.

Further, the air intake portion 5 is provided with an air bubble amount adjustment valve Va and a bubble amount adjustment valve element driving motor i2 that drives the air bubble amount adjustment valve Va.

In addition, the bubble-generating bathtub A is provided with a pump protection case 9 on the outer periphery of the bathtub body 1. Inside the case 9, there is a circulation pump P that circulates the bath water in the bathtub body 1, and a pump protection case 9. a filter R that filters the bath water circulated by the circulation pump P;
Controls the drive of the pump drive device M that drives the pump P, the pump drive device ZM, a motor for driving the nozzle valve forward and backward, a motor 2 for driving the valve body for air bubble amount adjustment, and an electric three-way valve Q, which will be described later. A control section C is provided.

Note that Ql is a waste pipe for discarding part of the bath water during backwashing.

There is a bathtub between the bathtub body 1 and the circulation pump P described above. A 13m circulation path is interposed.

That is, the bath water '# circulation path includes a bath water suction pipe (bath water suction channel) 10 for sending bath water from the bubble-generating bathtub A to the circulation pump P, and a bath water suction pipe (bath water suction passage) 10 for sending bath water from the bubble-generating bathtub A to the circulation pump P, and from the same circulation pump P to the same bathtub A. It is composed of a bath water bullet conveyance pipe (bathtub bullet conveyance channel) 11 for conveying bath water.

The bath water suction pipe 10 has one end opened at the bottom 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 it.

On the other hand, the bath water bullet feed pipe 11 has one end connected to the circulation pump P.
The other end is connected to the foot, ventral, and dorsal side jet nozzles 2° 3 and 4, respectively.

In addition, as shown in FIG. 3, the pump driving device M of the circulation pump P is equipped with a rotation @ detection sensor 6 that detects the rotation speed of the circulation pump P, and the detection output from the detection sensor 6 is It is sent to a control section C, which will be described later, and the rotation speed of the circulation pump P is controlled by the control section C.

Furthermore, as shown in FIG. 3, a pressure detection sensor 12 is installed in the middle of the bath water delivery pipe 11 to detect the pressure of the bath water being forced into the vibrator 11. Then, a detection signal from the pressure detection sensor 12 is sent to a control section C, which will be described later, and the control section C controls the ejection pressure of the bath water ejected from each ejection nozzle 2, 3.4 of the pump drive device M. It is controlled by changing the rotational speed and the valve body for the jetting valve body of each foot side, dorsal side, and ventral side jetting nozzle 2, 3.4.

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

These jet nozzles 2, 3.4 each use a jet volume automatic adjustment jet nozzle having the same structure and configured to be able to automatically change the jet volume and jet pressure of bath water.

Further, as shown in FIG. 3, an intake vibe 5a from an air intake section 5 is connected to the jet nozzles 2, 3.4.

Then, using the ejector effect by the ejector pressure generated by operating the circulation pump P, air is mixed into the bath water via the suction vibrator 5a, and the bath water mixed with air bubbles is ejected from the jet nozzles 2, 3.4. You can squirt more.

Next, the configuration of the control section C for controlling the pump drive device M and the foot, dorsal, and ventral jet nozzles 2, 3.4 will be described.

The control unit C includes a microprocessor M as shown in FIG.
Ptl and input/output interface 13.14 and ROM
and a timer 16.

In the above configuration, the input interface 13
The rotation speed detection sensor 6 detects the rotation speed of the circulation pump P, and the jet Il! A valve element reference position detection sensor 17 detects the opening/closing amount of the regulating valve element, a valve reference position detection sensor 18 detects the opening/closing amount of the air bubble amount adjusting valve, a pressure detection sensor 12 detects the water pressure of the bath bomb feeding vibrator 11, A bath water temperature detection sensor T that detects the temperature of bath water in the bathtub body 1 and an operation unit/light receiving section 21 that receives an infrared driving signal from a remote controller 20 are connected.

Note that in this embodiment, the light receiving section 21 is connected to the air intake section 5.
is placed above.

On the other hand, the output interface 14 includes a pump driving device M and a motor for driving the nozzle valve body forward and backward. 11, a motor i2 for driving a valve body for controlling the amount of air bubbles, and an electric three-way valve Q are connected.

In addition, in the January 5th memo, based on the output signals from the above-mentioned sensors and the drive signal from the remote controller 20, the above-mentioned pump drive device M, the old motor for driving the valve body for the nozzle, and the air bubble amount adjustment. A drive order program for driving the valve body drive motor H2 and the drive section of the electric three-way valve Q is stored.

The bubble generating bathtub A mentioned above is based on Japanese Patent Application No. 63-3317.
It can have the same basic configuration as No. 72.

In the bubble generating bathtub A configured as described above, the present invention has a belt drive type transmission device G interposed between the circulation pump P and the pump drive device M for driving the circulation pump P. It is characterized by its composition.

In this way, in this embodiment, since the belt drive type transmission device G is interposed between the circulation pump P and the pump drive device M, the effective diameter of the pulley can be changed steplessly to control the circulation pump P. By changing the rotational speed of the bath water, the amount and pressure of the bath water can be changed arbitrarily. You can enjoy blowjobs, etc.

Moreover, it is possible to change the blow mode without performing inverter control, and the possibility of accidents caused by high-frequency components involving human life can be reduced as much as possible.

Furthermore, since an expensive inverter can be omitted, the bubble-generating bathtub A can be manufactured at low cost.

Various forms of the belt drive type transmission G applicable to this embodiment are conceivable, and a specific example thereof is shown in FIG.

That is, as conceptually shown in FIG. 4, the belt drive type transmission G uses a single-belt type structure, and includes a frame 40 consisting of a rectangular frame body and a frame 40 on one side of the frame 40. An input shaft 41 is rotatably supported and has one end connected to the pump drive bag WM, and an input shaft 41 is rotatably supported on the other side of the frame 40 and parallel to the input shaft 41, and one end is an impeller mounting shaft of the circulation pump P. an output shaft 42 connected to the input shaft 4;
It consists of an input-end split boolean 3 attached to the center of the output shaft 42, an output-side split pulley 44 attached to the center of the output shaft 42, and an endless belt 45 wound between both split pulleys 43° and 44. .

With this configuration, the split pulley 43 consisting of the left side umbrella wheel on the input shaft 41 is always closed by the spring 46, and the split pulley 43 consisting of the right side umbrella wheel on the output shaft 42 is moved between the left and right sides. When opened and closed, a wide endless belt 4
5 moves, the effective diameter changes, and the speed is changed.

Further, 47 is a shifter device for moving the split boot 3 in the axial direction, which moves the split boo 1 3 based on a control signal from the control device C, and automatically moves the split boo 1 3 in the belt drive type transmission G. The transmission ratio can be changed.

In the above embodiment, as the belt drive type transmission G, it is preferable to use an EFVT or the like, which is a transmission in an automobile.

Further, in the present invention, various types of pump drive devices M can be used, and for example, an electric motor, an air motor, a hydraulic motor, an internal combustion engine, etc. can be used.

[Brief explanation of drawings]

FIG. 1 is a perspective view of the bubble-generating bathtub of the present invention, FIG. 2 is a plan view of the same bathtub, FIG. 3 is a block diagram of the bubble-generating bathtub, and FIG.
The figure is a conceptual diagram illustrating the configuration of a belt drive type transmission. (A): Bubble generating bathtub (D): Bath circulation flow path (G):
Belt drive type transmission (P): Circulation pump

Claims (1)

[Claims] 1. A bath water circulation flow path consisting of a bath water suction flow path and a bath water forced flow path is interposed between the bathtub body and the circulation pump, and the bath water forced flow flow path is The air intake parts are connected in communication, and the air taken in by the air intake parts is mixed into the bath water in the bath water forced flow path, so that the bath water mixed with air bubbles can be spouted from each jet nozzle into the bathtub body. A bubble generating bathtub characterized in that a belt drive type transmission device is interposed between the circulation pump and the pump drive device.