JPH0581264B2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an air blow bathtub that blows out air bubbles from the bottom of the bathtub to provide a pine surge effect to bathers, and is particularly aimed at improving the pine surge effect. be.

(Conventional technology) Conventionally, multiple air diffusers and nozzles were installed at the bottom of the bathtub, and air was force-fed from an air pump to the air diffusers and nozzles, exposing fine air bubbles from the air diffusers and nozzles in the bath water. Air-blown bathtubs are known. This well-known air blow bathtub was first opened in 1983.
As shown in Japanese Patent No. 16035, there is a device in which air bubbles are ejected from a diffuser plate at a desired position, and another example in which the amount of air bubbles can be controlled.

(Problem to be Solved by the Invention) In the former conventional example, the bather can receive air bubbles at any location, and the pine surge effect due to local stimulation is large, but the bather can sequentially change the locations where the air bubbles are received throughout the body. The changing operation to do so is troublesome, and it is not possible to easily impart an effective pine surge effect to the entire body. In addition, in the latter conventional example, the amount of bubbles is varied, and therefore the stimulation received by the body becomes stronger compared to the case where the amount of bubbles is a constant amount, but because the change is relatively monotonous, it is not as strong. It is not possible to enhance the pine surge effect.

(Means for Solving the Problems) The present invention aims to solve the problems of the conventional example described above, and for this purpose, in the present invention, air is supplied via an air pump to a plurality of blowing devices provided at the bottom of the bathtub. By doing so, in an air-blowing bathtub formed by discharging air bubbles from the blower device, a control valve is interposed in each of the air branch supply paths leading to the plurality of blower devices, and the valve opening degree of the plurality of control valves is controlled. The configuration includes a controller that changes the opening degree of the control valve connected to the adjacent blower device over time to be different from the opening degree of the control valve connected to the adjacent blower device.

(Function) According to the above configuration, the amount of air bubbles from the plurality of blowing devices changes over time, so that each part of the bather receives air bubbles of different strengths and weaknesses over time, and The part of the body that receives the bubbles will move over time.

(Example) FIG. 1 is an overall configuration diagram showing an example of the present invention.
FIG. 2 is an explanatory diagram showing the change in the amount of bubbles over time in the same example. FIG. 3 is a main part control circuit diagram of the same example.

In FIG. 1, 1 is a bathtub, and 2a to 2d are blower devices attached to multiple locations on the bottom wall of the bathtub 1.
The blower devices 2a to 2d include an air pump 3 and a supply path 4.
and connected via branch supply paths 5a to 5d,
Control valves 6a to 6d using ball valves are interposed in each branch supply path 5a to 5d, respectively. Control valve 6a
-6d, the valve opening degree is controlled in four stages: large, medium, small, and micro by the rotation of servo motors of drive devices 7a to 7d, which will be described later. 8 is the control device installed in the bathroom,
Reference numeral 9 denotes a controller that drives and stops the air pump 3 and drives the drive devices 7a to 7d based on the operation of the operating device 8.

The controller 9 outputs signals as shown below to the drive devices 7a to 7d when the operation device 8 is operated to start operation, and stops outputting the signals when the operation is stopped.
As shown in FIG. 3, the drive devices 7a to 7d include an opening detection means 71 using a servo motor 70 and a potentiometer, and an opening setting signal corresponding to large, medium, small, and minute valve openings. Opening degree setting means 72 that outputs
, the output of the opening degree detection means 71 and the opening degree setting means 72
Comparing means 73 for comparing the output of
The control means 74 stops the servo motor 70 in response to a coincidence output of 3, and causes the servo motor 70 to rotate forward or reverse in other cases. During operation, the controller 9 outputs an opening setting signal to the opening setting means 72 of each drive device 7a to 7d, and increases the opening setting signal output to any opening setting means 72 as time passes. → medium → small → minute → large, and a signal of a specific opening is outputted to the opening setting means 72 of the driving devices 7a to 7d of the adjacent blower devices 2a to 2d according to the passage of time. be.

In the above configuration, the controller 9 is activated by the operation start operation of the operator 8, and when T time has elapsed from the start of operation, the opening degree of the control valve 6b connected to the blower device 2a is large, and the opening degree of the control valve 6b connected to the blower device 2b is increased. The opening degree of the control valve 6c connected to the blower device 2c is medium, the opening degree of the control valve 6c connected to the blower device 2c is small, and the opening degree of the control valve 6d connected to the blower device 2d is small, and the amount of bubbles is as shown in FIG.
The dorsal end is the largest and the leg end is the smallest. After a further 2×T time has elapsed, the point where the amount of bubbles is at its maximum as shown in Figure 2(b) increases further by 3×T as shown in Figure 2(c).
As time elapses, the location with the maximum amount of bubbles moves further to the leg side as shown in Figure 2 C, and after 4 x T time, the location with the maximum amount of bubbles shifts to the end of the leg side as shown in Figure 2 D, and 5 After xT time has passed, the state returns to the state shown in Fig. 2A. Furthermore, as can be seen from FIG. 2, the amount of bubbles at a specific location also changes over time from large to minute to small to medium to large.

(Effects of the Invention) As is clear from the description of the embodiments above, according to the present invention, the amount of bubbles at a specific location changes over time, and the fumarole location that spouts a specific amount of bubbles changes over time. Since it moves as the bath progresses, it looks like waves of air bubbles are formed in the bathtub, providing gentle and moderate stimulation to the entire body of the bather, and the operation is automated and easy to perform.

[Brief explanation of drawings]

FIG. 1 is an overall configuration diagram showing an embodiment of the present invention;
FIG. 2 is an explanatory diagram of the same example, and FIG. 3 is a control circuit diagram of the main part of the same example. 2a to 2d... Fumarole device, 5a to 5d... Branch supply path, 6a to 6d... Control valve, 7a to 7d...
Drive device, 9... controller.

Claims (1)

[Claims] 1. In an air blow bathtub in which air is supplied via an air pump to a plurality of blower devices provided at the bottom of the bathtub, and air bubbles are discharged from the blower devices, the air branch supply path leading to the plurality of blower devices is A control valve is interposed in each of the control valves, and a controller is provided for changing the valve opening degree of the plurality of control valves according to the passage of time so as to be different from the opening degree of the control valve connected to the adjacent blower device. Air blow bathtub.