JPH02307471A - Air bubble generating bathtub - Google Patents

Abstract

PURPOSE:To enhance safety at the time of bathing and to perform inexpensive blow control by interposing speed change gears between a recirculation pump and a pump driving apparatus. CONSTITUTION:In an air bubble generating bathtub A, speed change gears G are interposed between a recirculation pump P and the pump driving apparatus M for driving the recirculation pump P. Since the speed change gears G are 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 a gear ratio in a multistage fashion and the jet amount or pressure of bath hot water can be arbitrarily changed. A bathing person can enjoy various blow forms. Further, 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 a type of bathtub, there has been a bubble-generating bathtub that is equipped with a bubble-generating device separate from the bathtub body. By doing so, the air bubbles can be used to perform pine surges on the body, thereby increasing the bathing window.

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-mentioned 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 isolation between the bathtub and the circulation pump is caused by the high frequency component generated during the switching operation of the winching element. If this is not done adequately, the danger to the human body 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 flow 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 part is connected to the hot water forced flow passage, and the air taken in by the air intake part is mixed into the bath water in the bath water forced flow passage, and air bubbles are mixed into the bathtub body from each jet nozzle. The present invention relates to a bubble-generating bathtub capable of spouting bath water, characterized in that a variable speed gear device is interposed between a circulation pump and a pump drive device.

(E) Functions and Effects In the present invention, since a variable speed gear device is interposed between the circulation pump and the pump drive device, the rotation speed of the circulation pump can be changed by changing the gear ratio in multiple stages. This allows you to arbitrarily change the amount and pressure of the bath water.
Bathers can enjoy various types of blowjobs.

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.

FIGS. 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 the bathtub body 1, which is formed into a box shape 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.

In addition, the air intake part 5 is provided with a morph M2 for driving a valve body for controlling the air bubble amount to drive the air bubble ttm regulating valve and the regulating valve Va.
is installed.

In addition, the bubble-generating bathtub A is provided with a pump protection case 9 on the outer periphery of the bathtub body 1, and inside the case 9 is a circulation pump P that circulates the bath water in the bathtub body 1. a filter R that filters the bath water circulated by the circulation pump P;
A pump drive device M that drives the pump P, a motor for driving the nozzle valve forward and backward, a motor i2 for driving the valve body for adjusting the amount of air bubbles, and an electric three-way valve Q, which will be described later.
A control section C is provided to control the driving of the motor.

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

A bath water circulation flow path is interposed between the bathtub body 1 and the circulation pump P described above.

That is, the bath water circulation flow path includes a bath water suction pipe (bath water suction flow path) 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 flow path) for sending bath water from the bubble generating bathtub A to the circulation pump P. It is composed of a bathtub water bullet conveying pipe (bathtub bullet conveying channel) 11 for sending hot 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 spout nozzle 2°3.4 on the foot side, ventral side, and dorsal side, respectively.

Further, as shown in FIG. 3, the pump driving device M of the circulation pump P is equipped with a rotation speed 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 pumping pipe 11 to detect the pressure of the bath water being pumped into the pipe 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. Control is performed by changing the rotational speed and the position of the valve body for adjusting the amount of ejection from each of the leg side, dorsal side, and ventral side ejection nozzles 2, 3.4.

Moreover, the pressure detection sensor 12 detects that the bath in the bathtub body 1 is
It can also be used as a water level sensor to detect water level.

Such jet nozzles 2, 3. /I uses the same automatic adjustment jet nozzle which is configured to be able to automatically change the jet amount and jet pressure of bath water.

Further, as shown in FIG. 3, an intake pipe 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 through the intake pipe 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 is a microprocessor as shown in FIG.
IPU and input/output interface 13.14 and RO
M and RA? It consists of a memory 15 consisting of an I, 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, the valve body reference position detection sensor 17 detects the opening/closing amount of the valve body for controlling the amount of ejection, and the valve standard detecting sensor 17 detects the opening/closing amount of the bubble amount adjusting valve. The position detection sensor 18 , the pressure detection sensor 12 that detects the water pressure of the bath water delivery pipe 11 , the bath water temperature detection sensor T that detects the temperature of the bath water in the bathtub body 1 , and the infrared drive signal from the remote controller 20 are detected. A light receiving section 21 which also serves as an operation section for receiving data is 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 is connected to a pump driving device M, a motor for driving the nozzle valve body forward and backward, a motor gate for driving the valve body for controlling the amount of air bubbles, and an electric three-way valve Q.

The memory 15 also stores the above-described pump drive device M, nozzle valve body advance/retreat drive motor, and air bubble amount adjustment valve based on the output signals from the above-mentioned sensors and the drive signal from the remote controller 20. A drive sequence program for driving the body drive motor M2 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.
A configuration similar to that described in No. 72 may be used.

The present invention has a configuration in which a speed change gear device G is interposed between the circulation pump P and the pump drive device M for driving the Wi-ring pump P in the bubble generating bathtub A configured as described above. It is characterized by

In this way, in this embodiment, since the variable speed gear device G is interposed between the circulation pump P and the pump drive device M, the rotational speed of the circulation pump P can be adjusted by changing the gear ratio in multiple stages. By changing the amount and pressure of the bath water, the amount and pressure of the bath water can be changed arbitrarily. etc.) can be enjoyed.

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

Various forms of the transmission gear device 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 transmission gear device G includes sliding gears 40.40a, 41, 41a, 42.42a.
and clutches 43.43a, 44.44a are combined to obtain four speeds using three pairs of gears.

The specific meshing is gear 40→40a, gear 41→41
a.

Gear 42→42a and gear 40-"40a =41-"
From the human power shaft 44 connected to the output shaft 43 of the pump drive device M, while changing the speed in four stages of 41a - 42 - 42a,
Output shaft 4 connected to impeller mounting shaft 45 of circulation pump P
6, rotation can be transmitted while changing gears.

In the above configuration, the human power shaft 44 and the output shaft 46 are connected to the gears 40 and 42 in the axial direction by a shift device 47 and 48 that is controlled by a control signal from the control device C.
By moving a, the above-mentioned speed change ratio can be selectively and automatically adopted.

In the present invention, various types of pump drive devices ZM 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 the drawing]

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 configuration explanatory diagram of a transmission gear device. (A): Bubble generating bathtub (D): Bath water circulation flow path (G) - variable speed gear device (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 variable speed gear device is interposed between the circulation pump and the pump drive device.