JPH02307464A - Air bubble generating bathtub - Google Patents

Abstract

PURPOSE:To stably control the water level of bath hot water by arranging a water level detection sensor in a bath hot water forcible feed flow passage and controlling the water level of bath hot water on the basis of the detection value of said sensor and setting hysteresis between the output of the sensor and the bath hot water level control operation of a control part. CONSTITUTION:A pressure detecting sensor 48 for detecting the pressure of bath hot water fed under pressure is mounted to a bath hot water forcible feed pipe 11 and also utilized as the water level detection sensor in a bathtub main body 1 and one surface of a diaphragm 48b is allowed to communicate with the bath hot water forcible feed pipe 11 to receive the pressure in the pipe 11 and strain is generated in the diaphragm 48b. When a definite current is allowed to flow to a bridge 48d, the diaphragm 48b is distorted by pressure fluctuation and the resistance value of a strain gauge 48c changes and the output voltage of the bridge 48d changes and pressure is detected by the inverse operation from the output voltage. Hysteresis is set between the output of the sensor and the water level control operation of the control part and set to a value equal to or slightly larger than a ripple to stably perform the water level control of bath hot water.

Description

[Detailed description of the invention] (b) Industrial application field The present invention relates to a bubble generating bathtub.

(b) Conventional technology Conventionally, as a basic form of a bubble-generating bathtub, Japanese Patent Application Laid-Open No. 59-1
As described in Publication No. 35058, a bath water circulation flow path consisting of a bath water suction pipe and a bath water filling pipe is interposed between the bathtub body and a circulation pump installed outside the bathtub body. However, there are some that have an air intake part in the middle of the bathtub pipe.

With this configuration, the circulation pump sucks the bathwater in the bathtub body through the bathwater suction pipe, and the circulation pump causes the bathwater to flow through the bathwater delivery pipe and squirts it into the bathtub body from the discharge part of the pipe. At this time, the air intake is mixed with the air taken in by using the negative pressure caused by the hot water jetting out from the air intake part, so that the hot water mixed with bubbles can be jetted out. ing.

(c) Problems to be solved by the invention However, since there is no means for detecting the water level of bath water in the bathtub body, it is necessary to automatically adjust the water level by filling the bathtub body with hot water, adding hot water, etc. This was complicated because it required judgment and operation by the bather.

Also, it is possible to provide feedback control of the bath water level by providing a water level detection sensor in the bathtub body, but simply installing a water level detection sensor and performing feedback control of the bath water level is not enough. Since the input includes ripples caused by ripples in the bath water, the output of the sensor is meaninglessly turned on and off, resulting in the problem of unstable water level control.

(d) Means for Solving the Problems In the present invention, a bath water circulation system consisting of a bath water suction channel and a bath water forced flow channel is provided between the bathtub body and a circulation pump installed outside the bathtub body. A flow path is provided, and a plurality of ends of the forced bath water flow path are opened in the bathtub body, and an air intake part is connected to the forced bath water flow path, so that the bath water mixed with air bubbles is delivered to the bathroom. In a bathtub that generates bubbles so that it can blow bubbles into the main body, a water level detection sensor is installed in the bath water forced flow path, and the water level in the bathtub in the bathtub main body is controlled based on the detected value of the sensor via the control unit. To provide a bubble-generating bathtub, characterized in that the bathtub is configured to have a stable bathwater level control and that hysteresis is set between the output of the sensor and the bathwater level control operation of the control unit, thereby enabling stable bathwater level control. This is what I am trying to do.

(E) Functions and Effects According to the present invention, the food pack control of the bath water level is performed based on the detected value of the water level detection sensor disposed in the bathtub body. A hysteresis is set between the water level control operation, and by setting the hysteresis to a value equal to or slightly larger than the ripple, it is possible to prevent the sensor output from turning on and off meaninglessly. It is possible to perform stable water level control of the bath water that is not disturbed by the undulations of the bath water or the like.

Note that in order to provide hysteresis between the output of the water level detection sensor and the water level control operation of the control unit, the sensor may be connected to the control device via an AD converter and hysteresis may be set using software. There is a method of manually inputting the output of the sensor to a control device via a Schmitt circuit.

[Margin below]

(f) Example The bubble-generating bathtub according to the present invention will be specifically explained in accordance with the following items with reference to the accompanying drawings.

[11 Overall description of bubble generating bathtub [11] Explanation of the configuration of each part [■-1] Explanation of the configuration of the jet nozzle (n-2)
Explanation of the configuration of the air intake section (n-3) Explanation of the circulation pump (explanation of the n-43 filter [■-5]) Explanation of the control section (II-6) Explanation of the operation panel section [■-7) Remote controller Explanation [III]
Description of jet flow form (III-1) Mild blow (m-23 Shiatsu blow (m-3) Pulse blow Cm-4) Wave blow (III-5) Cycle blow (III-6) Blow ram blow [rV] Bubble generating bathtub Explanation of the operation (IV-1) Explanation of the operation procedure based on the flowchart (IV-2) Explanation of the conditions for starting the blow operation (IV-3)
) Explanation of state transition of jet flow form (IV-4) Explanation of state transition of bath water spout position [IV-53 Explanation of state transition of strength level in blow operation (IV-6) Explanation of priority order of main operation specifications CIV-7) Control timing of opening/closing operation of the valve body for regulating the amount of ejection and changing the rotation speed of the circulation pump [blank below] [11 Overall description of the bubble-generating bathtub First, the overall configuration of the bubble-generating bathtub according to the present invention I will explain about it.

(A) shown in FIGS. 1 and 2 is a bubble-generating bathtub according to the present invention, and the bubble-generating bathtub (A) includes front and rear walls of a bathtub body (1) formed in a box shape with an opening at the top; On the left and right side walls,
A total of six foot, dorsal, and ventral jet nozzles (2), (2), (3), (3), (4), and (4) each with automatic variable jet volume are provided.

The bathtub body (1) has a flange-like edge (1a) of a constant width formed on the periphery, and an air intake portion (5) on the edge (1a).
), and a vertically elongated recess (lb) (lb) with a substantially V-shaped cross section is formed approximately in the center of the left and right side walls, and the recess (1b) (
1b) Sloped surface (1°b) on the side facing the rear wall (dorsal side) (
1'b), the ventral side jet nozzles (4) (4) are attached toward the center of the rear wall.

Moreover, the ventral side jet nozzle (4) is installed at a higher position than the other leg side and dorsal side jet nozzles (2) and (3) to ensure that the bath reaches the ventral side, chest side, and other parts of the human body. I'm trying to make it possible to guess.

In addition, a pump protective case (9) is arranged outside the bubble generating bathtub (^), and inside the case (9),
Circulation pump (P) that circulates the bath and the same pump (P)
A filter (43) that filters the bath water circulated by the filter, and a pump drive motor (M) that drives the pump (P).
and a control unit that controls the driving of the same motor (M), a motor for opening and closing the nozzle valve body (Ml), a motor for opening and closing the valve body for air bubble amount adjustment (M2), and an electric three-way valve (45), which will be described later. C).

Moreover, a bath circulation channel (D) is interposed between the circulation pump (P) and the bubble generating bathtub (^).

That is, the bath circulation flow path (D) is connected to the bubble-generating bathtub (A).
A bath water suction vibrator (10) for sending bath water from the circulation pump (P) to the same bathtub (^)
It consists of a bathtub vibrator (11) for sending the bath to the bath.

And the bath suction vibe (lO) is attached to the bathtub body (1).
One end is connected to the inlet (1 m) opened at the bottom of the
The other end of the hot water delivery pipe (11) is connected to the water inlet of the circulation pump (P) to draw bath water into the circulation pump (P), while one end of the hot water delivery pipe (11) is connected to the water outlet of the circulation pump (P). and the other ends thereof are connected to the jet nozzles (2), (3), and (4), respectively.

Moreover, the above-mentioned suction port (111) is provided at a lower position than the foot side/dorsal side jet nozzles (2) and (3).

Furthermore, as shown in FIG. 3, an inverter (E) is interposed between the pump drive motor (M) that drives the circulation pump (P) and the control section (C). )
By controlling the rotation speed of the circulation pump (P) by changing the output frequency of the circulation pump (P), the rotation speed of the circulation pump (P) can be changed smoothly and reliably.

In addition, as shown in FIG. 3, a pressure detection sensor (48) is installed in the middle of the bath water pumping pipe (11) to detect the pressure of the bath water being pumped through the pipe (11). The detection results from the sensor (48) are sent to the control unit (C), which controls each ejection nozzle <2) (3) (4
), the rotation speed of the pump drive motor (M) and each spout nozzle (2) (3) (
4) is controlled by changing the opening/closing amount.

Moreover, the pressure detection sensor (48) is also used as a water level detection sensor for detecting the amount of hot water filled in the bathtub body (1).

As shown in Fig. 3a, the pressure detection sensor (48) has a diaphragm (48b) made of a semiconductor material stretched in a sensor case (48a), and the surface of the diaphragm (48b) is attached to a vibrator filled with hot water. (11) and connect it to the same pipe (
11) The pressure inside the diaphragm (48b) is received to cause distortion in the diaphragm (48b).

The diaphragm (48b) is made of a semiconductor in which impurities are diffused, and as shown in Fig. 3b, the diaphragm (48b)
In b), a bridge (48d) is constructed of four strain gauges (48c) that exhibit different resistance values depending on strain.

Therefore, if a constant current is allowed to flow through the bridge (48d), the diaphragm (48b) will be distorted due to pressure fluctuations.
When the resistance value of the strain gauge (48c) changes, the output voltage of the bridge (48d) changes, and pressure can be detected by calculating backward from this output voltage.

Note that the output voltage is increased by connecting four strain gauges (48c) in a Wheatstone bridge.

In the figure (48e) is a thick film resistor for temperature compensation built on the diaphragm (48b).

(48f') is a constant voltage circuit, and (48g> is a bridge (48g) that uses the constant voltage of the constant voltage circuit (48f').
d) a voltage-current conversion circuit that allows a constant current to flow through the circuit;
(48h) is a differential amplifier that amplifies the output voltage of the bridge (48d) with a constant amplification factor, and (48i) is the output terminal (48i).
8j).

The output of the pressure detection sensor (48) is sent to the AD converter (4).
By inputting the pressure to the control unit (C), which will be described later, through the bathtub body ( ) and the discharge pressure of the circulation pump (P) are detected.

In other words, when the circulation pump (P) is stopped,
The pressure detected by the pressure detection sensor (48) is determined by the pressure detected by the pressure detection sensor (48).
1) This indicates the head of the water level of the bath water in the bath, and when the circulation pump (P) is operating, the pressure detection sensor (4
The pressure detected by 8) shows the sum of the above water level head and the discharge head of the circulation pump (P), but since the difference between the discharge head of the circulation pump (P) and the water level head is extremely large, In practice, it can be regarded as the discharge head of the circulation pump (P).

In addition, since the pressure detection sensor is non-contact, causes of failure such as contact corrosion and frictional resistance of the lever connection part, which were inevitable with conventional switch-type pressure sensors, are eliminated, resulting in a longer life and detection output. Since the hysteresis can be freely set, accurate and stable pressure detection can be performed with sufficient accuracy.

Particularly, in this embodiment, a water level detection subroutine is provided in the control program that can perform water level detection in three stages and provides hysteresis for each set water level in each stage.

Therefore, a relationship as shown in FIG. 3c is established between the output of the pressure detection sensor and each set water level detection output.

Then, the value of hysteresis is equal to the ripple of the pressure detection sensor due to the ripples of bath water in the bathtub body, or
Since the value is set to a value slightly larger than this, meaningless control operations of the water level control system are prevented and stable water level control can be performed.

Note that by setting the hysteresis described above using a water level detection subroutine, that is, software, it is possible to change each set water level and hysteresis on the product.

By setting hysteresis in the output of the pressure detection sensor (48) as described above, it is possible to obtain the functions and effects described in the section (TV-2) Explanation of Blow Operation Start Conditions below.

By using such a bath water temperature detection sensor (T), the control unit (
Each operation/stop of blowing operation, anti-freezing operation, filter cleaning operation, and automatic filter cleaning operation, which will be described later in accordance with C), is performed.

In addition, as shown in Figure 3, a bath water temperature detection sensor (T) that detects the temperature of the bath water being pumped through the vibrator (11) is installed in the middle of the bath water delivery pipe (11). , the detection results from the sensor (T) are sent to the control unit (C), and the control unit (C) controls the pump drive motor (M) and each jet nozzle (2), (3), and (4). I have to.

By using such a bath water temperature detection sensor (T), when the hot water supply does not reach a certain water temperature, the control unit (C) performs blow operation, antifreeze operation, filter cleaning operation, and automatic filtration as described below. Machine washing operation is prevented from starting.

In this way, the blow operation, anti-freezing operation, filter cleaning operation, and automatic filter cleaning operation, which will be described later by the control unit (C), will not start if the bath water level and water temperature are below a certain level. That's what I do.

In addition, the above-mentioned air intake part (5) and each jet nozzle (2)
As shown in Figures 1 and 4, an intake pipe (12) is interposed between (3) and (4), and the intake pipe (12) connects each jet nozzle from the middle. (2)(3)
(4) Branch pipes (12a) (12b) (
12c) and each branch pipe (12a) (12b
) (12c) to each jet nozzle (2).
(3) It is connected to (4).

Then, by using the negative pressure generated when each of the blowout nozzles (2), (3), and (4) blows out air from the bath, the air taken in from the air intake section (5) is transferred to each of the branch pipes of the intake pipe (12). 12a) (12b) (12c) and inhale the bubbles into the bathtub body (1) from each spray nozzle (2), (3), and (4). The bath water can be squirted out.

In addition, as shown in FIGS. 1 and 3, an operation panel section (6) is provided near the bathtub body (1), and the operation panel section (6) can be used to ) can be operated.

The operation panel section (6) will be described later.

(30b) is an infrared receiving section provided in the operation panel section (6), which receives infrared rays emitted from a remote controller (30) to be described later.

(30c) is a reception indicator lamp provided on the operation panel section (6). Further, in FIG. 1, (7) is an outlet connected to a power source.

In the above configuration, the gist of the present invention is to provide foot side, dorsal side and ventral side jet nozzles (2) (3) with automatic variable jet volume.
The opening/closing amount of (4) and the rotation speed of the circulation pump (P) are configured to be controllable through the control unit (C), allowing various types of jet flow (mild blow, acupressure blow,
By making it possible to obtain changes in (pulse blow, wave blow, cycle blow, and program blow), it is possible to sufficiently respond to the diverse tastes of bathers, and in addition to making it possible to obtain changes in the flow rate (pulse blow, wave blow, cycle blow, and program blow). By controlling the rotational speed of the pump (P), the jet strength can be changed, and furthermore, various jet points can be selected, so that the bather can adjust the desired effect on his or her body. The purpose is to apply a jet stream of desired strength to the location where the pine surge effect by the jet stream can be sufficiently obtained.

In particular, in this embodiment, the rotation speed of the circulation pump (P) is controlled by the inverter (E), so that various types of jet flow forms and jet flow strengths can be smoothly changed. .

[Margin below]

[11 Explanation of the configuration of each part (II-1) Explanation of the configuration of the jet nozzle The foot side, dorsal side, and ventral side jet nozzles (2), (3), and (4) automatically adjust the jet amount and jet pressure of bath water, respectively. An automatically variable ejection nozzle having the same structure and variable ejection amount is used, and the structure of the foot side ejection nozzle (2) will be described below with reference to FIGS. 5 to 8.

That is, the foot side spout nozzle (2) has a cylindrical nozzle casing (20) cantilevered to the outside of the bathtub body (1) at the foot side spout nozzle connection port (Ig) of the bathtub body (1). A jet flow forming part (50) which forms a jet flow from the bath water inflowing from the bath water filling vibrator (11), an air intake part (5) and an intake vibrator which are connected to each other and are connected to each other in the same nozzle casing (20). (12), and mixes air into the bathtub that is ejected from the jet flow forming part (50).
and a throat part (60) which determines the spouting direction of the bathwater mixed with air bubbles spouted from the air mixing part (70) toward the C knee inside the bathtub body (1).

As shown in FIG. 5, the nozzle casing (20) has its front end connected in a watertight manner to a circular foot-side jet nozzle connection port (Ig) opened at the lower part of the front wall of the bathtub body (1), and its rear end connected in a watertight manner. The ends extend rearward approximately horizontally.

(lh) is a ring-shaped gasket (11) fitted around the periphery of the leg side jet nozzle connection port (Ig).
ring-shaped female screw part (11) attached to the rear surface of lh) (
20a) is an outer peripheral male screw portion formed on the outer circumferential surface of the front end of the nozzle casing (20), and (20e) is a filling vibe connecting portion that connects the bath water filling pipe (11) in a detachable manner.

(n) indicates the bath water inflow direction.

Moreover, (2B) covers the front end of the nozzle casing (20) and the ring-shaped female threaded part (li) with the front end part (28b), and fixes the throat fixing member (25) described later at the rear end. It is a cosmetic cover with a cylindrical overall shape.
A female threaded portion (26a) is formed on the outer peripheral surface, and a spaced threaded portion (26a) is formed on the outer peripheral surface.
6a) is removably screwed onto an inner circumferential male threaded portion (20j) formed on the inner circumferential surface of the front end portion of the nozzle casing (20).

Further, the throat portion (60) is composed of a throat (24), a throat fixing member (25) that supports the throat (24) in an adjustable manner, and a front portion of the valve seat forming cylinder (21). ing. (24a) is a throat base whose outer peripheral surface is formed into a spherical shape, (25a) and (25b) are the same throat base.
- A throat support surface (24b) formed on the inner circumferential surface of the throat fixing member (25) and the inner circumferential surface of the valve seat forming cylinder (21) to slidably support the throat base (24a),
It is a cylindrical throat tip whose outer diameter is reduced from the throat base (24a), and the throat tip (24b) can be manually adjusted to swing in any direction up, down, left or right around the base (24a). There is.

Moreover, a certain amount of sliding resistance acts on the base (24a) of the throat (24) from the throat support surfaces (25a) (21b), making it possible to stop the throw (24) at any swing angle. There is.

(S) is a throat swing operation space formed between the outer peripheral surface of the throat tip (24b) and the inner peripheral surface of the decorative cover (2B).

Further, the throat fixing member (25) fits into the front inner peripheral surface of the nozzle casing (20) via the positioning groove,
The front surface (25b) is fixed to the rear end of the decorative cover (2B) via a fixing ring (28), and the throat support surface (25a) formed on the inner peripheral surface allows the base of the throat (24) to be fixed (
The front outer peripheral surface of 24a) is slidably supported.

Further, the valve seat forming cylinder (21) is connected to the nozzle casing (2
0) into the central part of the nozzle casing (20) through the front end opening thereof, so that the rear end surface is located near the tensioning vibe connecting part (20c), and is formed on the front outer circumferential surface. The protruding stepped portion (21b) is attached to the nozzle casing (20).
It engages with a concave step (201) formed on the inner circumferential surface of to restrict rearward sliding.

Then, the throat base (24a) is attached to the throat support surface (21b) formed on the front inner peripheral surface of the valve seat forming cylinder (21).
) is fitted, and the forward sliding of the valve seat forming cylinder (21) is restricted by the base (24a) of the throat, which is restricted from sliding forward by the throat fixing member (25). .

The jet forming section (50) also includes a jet forming channel (2) inside.
a valve seat (21a) forming a valve seat (21a) forming a valve seat (21a), and a jet amount adjustment valve that approaches and separates from the valve seat (21a) to adjust the opening/closing amount (adjusts the jet amount and jet pressure) of the jet flow forming channel (27). body (22), a nozzle valve body opening/closing motor (Ml) that opens and closes the jetting amount regulating valve body (22), and the same motor (
The rear wall forming plate (29) supports the rear wall forming plate (Ml).

In addition, in FIGS. 6 and 7, (21d) is an air inflow passage formed in an annular shape along the outer peripheral surface of the valve seat forming cylinder (21), (21e) and (21f') are the air inflow passages. (21d) on the intake pipe connection part (20b) side and the same connection part (20b
), and the air inlets (21e) and (21f) communicate with the inside of the valve seat forming cylinder (21) and the intake pipe connection part (20b) through the air inlets (21e) and (21f). The air mixing part (70
) is formed. (m) indicates the air inflow direction.

In addition, the nozzle valve body opening/closing operation motor (old) is a stepping motor that operates step by step for each input pulse, and as shown in Figure 8, a cylindrical motor casing is attached to the rear wall forming plate (29). (23) is removably attached, and a cylindrical coil (23) is attached inside the motor casing (23).
a) is provided coaxially with the nozzle casing (20), a cylindrical magnet (23b) is disposed within the coil (23a), and by exciting the coil (23a), the magnet (23b) is corrected. The same magnet (
A cylindrical rotor nut (23c) is installed concentrically and integrally in the rotor nut (23b), and the rotor nut (23c) is rotatably supported by a bearing (23e), and the amount of ejection is determined at the tip in the rotor nut (23c). Adjustment valve body (22
) is inserted through the valve body support rod (23d) so that it can slide forward and backward.

A spiral rotor nut side ball groove (23k) is formed on the inner circumferential surface of the rotor nut (23c), while a spiral rotor nut side ball groove (23k) is formed on the outer circumferential surface of the valve body support rod (23d) in the same direction as the rotor nut side ball groove (23k). A spiral rod-side ball groove (23m) is formed, and a plurality of balls (23n) are freely interposed between the rotor nut side ball groove (23k) and the rod-side ball groove (230+) which are opposed to each other. There is. (23g) is a rotation regulating piece that prevents the valve body support rod (23d) from rotating with the rotor nut (23c).

In addition, in this embodiment, in order to control the position of the injection amount regulating valve body (22) without error, the valve body (22) is placed between the reference position and the valve seat (21a), which is the fully closed position at 17. It uses a method that initializes by pressing the button and causing it to step out, and the control unit (
C), the number of pulses (rotation angle) from the reference position of the nozzle valve element opening/closing operation motor (Ml) is calculated to control the valve element position.

Further, at the rear end of the valve body support rod (23d), there is provided a valve body (22 ) is installed with a valve body position detection sensor (23r) that detects the opening/closing amount (adjusts the ejection amount and ejection pressure) of the valve body position Hall element (231).
) and a valve body position detection magnet (23j) attached to the rear end position of the valve body support rod (23d) facing the valve body position Hall element (231). (23
h) is the coil (23a) and the valve body position detection sensor (
23r).

The above-mentioned valve body position detection sensor (23r) is located between the valve body position Hall element (231) and the valve body position detection magnet (23j), which changes according to the forward and backward movement of the valve body support rod (23d). The change in magnetic force is converted into an electrical change and sent to the control section (C) to determine whether the valve body position is normal.

As a result, if the result obtained by calculating the number of pulses and the detection result of the valve body position detection sensor (23f') are different, the operation of the valve body (22) for regulating the amount of ejection is stopped. At the same time, it also warns of malfunctions and deafness.

In addition to the above configuration, a valve body position detection sensor (
23r), changes in the magnetic force between the valve body position Hall element (231) and the valve body position detection magnet (23j), which changes according to the forward and backward movement of the valve body support rod (23d),
It is converted into an electrical change and sent to the control unit (C), and the basic position (
For example, it is also possible to detect the fully closed position.

With this configuration, the motor for opening and closing the valve body for the nozzle (
old), the coil (23a) is energized and the magnet (23a) is energized.
The rotor nut (23b) is rotated together with c), and the valve body support rod (23b) is rotated in conjunction with the rotation of the rotor nut (23b).
23d) is moved forward and backward, and the valve body support rod (23d) is moved forward and backward.
) is attached to the tip of the valve seat (22).
21a) so as to allow fine adjustment of the amount and pressure of hot water spouted into the bathtub body (1).

In addition, the motor (Ml) for opening and closing the valve body for the nozzle is capable of finely adjusting the spout volume and jet pressure of bath water by moving the jet volume regulating valve disc (22) forward and backward steplessly over a minute distance. A piezoelectric actuator may also be used.

Further, (40) is a bellows-shaped waterproof cover (20 m) integrally molded with the ejection amount regulating valve body (22) and is an air breathing port.

Further, the rear wall of the nozzle casing (20) described above is a rear wall forming plate (29) that is separate from the nozzle casing (20).
), and the rear wall forming plate (29) has a disc shape with approximately the same diameter as the rear end inner diameter of the nozzle casing (20), and is attached from the front end opening of the nozzle casing (20). It is fitted and installed in a removable manner.

(20g) is the rear wall forming l (29), and the rear wall forming plate regulating piece (21g) formed on the inner peripheral surface of the rear end of the nozzle casing (20) is the rear wall forming plate regulating piece (21g) of the valve seat forming cylinder (21). The step portion (29a) for regulating rear wall advancement formed at the rear end is a packing provided on the circumferential surface of the rear wall forming plate (29).

Moreover, the outer diameter of the motor casing (23) described above is
It is formed to have a smaller diameter than the inner diameter of the rear end opening (20k) of the nozzle casing (20) formed by the inner peripheral surface of the rear wall forming plate (29).

With the above configuration, the foot side jet nozzle (2) can be disassembled from inside the bathtub body (1).

In addition, the dorsal and ventral jet nozzles (3) and (4) are constructed in the same manner as the jet nozzle (2), so that the amount of hot water jetted and the bath jet pressure can be adjusted. .

The six foot, dorsal, and ventral jet nozzles (2) described above (
3) The usage pattern of (4) was later shown in Figure 13 and Figure 1.
As will be explained with reference to Figure 4, when all six nozzles are used to spout bath water at the same time, one or two of the jet nozzles may be selected and used, and each usage pattern is as follows. Operation panel section (6) or remote controller (
The pattern can be selected using the switch to select the jet nozzle usage pattern (30).

Next, the initial setting (adjustment) of the nozzle valve opening/closing motor (old) in each of the jet nozzles (2), (3), and (4) will be explained.

When the power is turned on (when the plug is inserted), the nozzle valve body opening/closing operation motor (Ml) is operated at a normal voltage (for example, 12V) of 50pps for 0.5 seconds to close the jetting amount adjustment valve body (22). Drive in the direction of operation.

, ■The motor for opening and closing the valve body for the nozzle (old) has a low voltage (
For example, at 4V) 200pps, the device is driven in the direction of closing operation for a certain period of time (for example, 2 seconds), and is initialized by stepping out at the completely closed position.

■ Drive the motor (Ml) for opening and closing the nozzle valve body at a normal voltage (for example, 12V) at 200pps,
The ejection amount adjusting valve body (22) is moved back 6 mm from the initialized fully closed position.

As mentioned above, the motor for opening and closing the valve body for the nozzle (M
Initial setting (adjustment) can be performed by causing the drive unit 1) to perform the above-mentioned drives ① to ②.

Note that the above numerical values are examples and are not limited to these.

The following effects are produced by the initial setting (adjustment) of the motor (Ml) for opening and closing the nozzle valve body.

a) By driving in the above (■), the oil clinging to the seal part is peeled off and the nozzle valve opening/closing operation motor (Ml)
The subsequent smooth operation can be ensured.

b) Due to the drive described in (■) above, the valve body (22) for regulating the ejection amount
can be brought into contact with the valve body (21a) with a relatively low pressing force, and damage to the valve body (22) and the valve seat (21a) can be prevented.

C) Due to the drive described in (■) above, the valve body (2
2) is in the open state where the valve is moved back six degrees from the fully closed position.
This allows for smooth supply and drainage of bath water when filling and draining water.

In addition, at the start of the blowing operation, which will be described later, the nozzle valve element opening/closing motor (Ml) is driven as described above, thereby initializing the jetting amount adjusting valve element (22). The position of the valve body (22) is corrected so that a mild blow as an initial setting blow can be smoothly performed.

(II-2) Description of the configuration of the air intake section The configuration of the air intake section (5) will be described below.

The air intake part (5) is attached to the edge (la) of the bathtub body (1), as shown in FIGS. A rectangular box-shaped air intake body (80) and an air intake port (82) on the outside.
a), a lid (82) covering the top opening of the air intake body 80), and an intake pipe connecting portion (83) connected to the center of the bottom surface of the air intake body 80); A communication path (86) provided within the intake pipe connection portion (83) and connecting the intake pipe connection portion (83) and the air intake body (80).
It consists of a bubble amount control valve (87) that opens and closes the air bubble amount control valve (87).

One end of the intake pipes (12) and (12) are connected to the front and rear walls of the intake pipe connection section (83), respectively, so that the air taken into the air intake section main body (80) through the air intake port (82a) is communicated with the front and rear walls of the intake pipe connection section (83). , a certain amount of air bubbles is sent to each intake pipe (12) (12) through the intake pipe connection part (83) by the bubble amount control valve (87), and the air bubbles are sent to each intake pipe (12) (12).
) allows a certain amount of air to be supplied to each jet nozzle (2), (3), and (4). In Figure 4, (84)
The beam actance type silencer (85) is a check valve, and the check valve (85) prevents the bath water from flowing back into the intake vibe (12).

The air bubble amount adjusting valve (87) has a cylindrical valve body (88) whose upper edge is opened to communicate with the bottom of the air intake body (80).
), a motor (M2) for opening and closing the valve body for adjusting the air bubble amount attached to the bottom (88a) of the valve body (88), a valve body support rod (89) attached to the same motor (M2), and a valve body support rod (89) attached to the same motor (M2). A valve body (9) is attached to the tip of the rod (89) and is movable toward and away from the valve seat (88b) formed on the upper edge of the valve body (88).
0). (88d) is the valve body (88)
This is a communication port provided in the peripheral wall of the

In addition, the valve body opening/closing motor (M2) for adjusting the amount of air bubbles has a linear stepping motor structure similar to the nozzle valve body opening/closing motor (Ml), and can be controlled by a control unit (C) described later. However, in this example,
During the blowing operation, the motor (M2) is not driven to adjust the amount of bubbles using the valve body (90), but the blowing operation is performed at a preset amount of bubbles.

In addition, a silencer (
92) is made of a porous sintered plastic body (for example, a sintered polyethylene body, a sintered polypropylene body, etc.), and is formed into a cylindrical shape using a sound absorbing material having a sound absorbing function and an air purifying function. (93) is a silencer support plate (93) that supports a plurality of silencers (92) horizontally suspended in the lower part of the air intake main body (80), and each silencer (93)
2) the lower end opening (92a) of the silencer support plate (9
3), each of which corresponds to and communicates with a plurality of communication holes (94) provided in 3). ('') indicates the air inflow direction.

Description of 1:ll-3:l circulation pump The configuration of the circulation pump will be explained below.

As shown in FIG. 11, the circulation pump (P) has a flow path (32d) in the pump casing (32) that interconnects the upper impeller chamber (33) and the lower impeller chamber (34).
The lower impeller chamber (34)
is communicated with the bath water suction pipe (10) via the bath water suction passage (32a) provided on the lower side of the pump casing (32), and the bath water provided on the other side of the lower portion of the pump casing (32). The filtering device (43), which will be described later, is communicated with the bath water bullet feeding vibe (11) via the bullet feeding path (32b), and is connected to the filtering device (43) via the filtering bullet feeding path (32c) provided on the negative side of the upper impeller chamber (33). ) is communicated with one end of the lead-in pipe (41). (32e) is the water inlet, (32r) is the lower water outlet,
(32g) is the upper spout, (Zl) is the circulation flow direction, (
z2) indicates the filtration flow direction.

Then, an impeller shaft (35) is mounted so as to vertically penetrate the central part of the upper and lower impeller chambers (33) and (34), and the upper impeller (33a) is mounted on the impeller shaft (35).
) and a lower impeller (34a) are installed coaxially within the upper and lower impeller chambers (33) and (34), respectively, and the impeller shaft (35) is mounted integrally and watertightly on the pump casing (32). Drive motor (M)
The drive shaft (39) is interlocked with the drive shaft (39). (36) is a sealing material attached to the impeller shaft (35) to ensure watertightness within the pump casing (32).

Furthermore, as shown in Fig. 12, a filter (43) is connected to the upper impeller chamber (33) of the circulation pump (P) via a lead-in pipe (41) and a return pipe (42). , the upper spout (!1) of the upper impeller chamber (33)
A part of the bath water sucked into the lower impeller chamber (34) is sent to the filter (43) through the lead-in pipe (41) connected to the pipe (2g), and the bath water filtered by the filter (43) is The bath water is sent through the return pipe (42) into the bath water bullet delivery vibrator (11), and is forced into the bath water bullet delivery pipe (11) from the lower spout (32f') of the lower impeller chamber (34). I'm trying to get it to merge.

With this configuration, the upper and lower impellers (33a) (34
When a) is rotated, the hot water in the bathtub body (1) is sucked from the bathwater suction vibrator (10) through the water suction port (32e) into the bathwater suction path (32a) of the lower impeller chamber (34). Bath water forced feed path (32) from the lower impeller room (34)
b) The water is forcibly fed into the bathtub body (1) through the lower spout (33a) and further through the bathwater bullet delivery pipe (11).

At this time, a part of the bath water that has flowed into the lower impeller chamber (34) flows into the upper impeller chamber (33) through the communication flow path (32d), passes through the filter pellet feeding path (32c), and passes through the upper impeller chamber (32c). From the spout (33a), the bath water passes through the lead-in pipe (41) and is sent to the filter (43), where it is filtered.The filtered bath water passes through the return pipe (42) and is sent to the bath water bullet-feeding vibe (
11) Sent inside.

In this way, the upper and lower impellers (33a) (34a)
A circulation pump (P) equipped with a bath water circulation flow path (D
) A part of the bath circulating in the bath is filtered by a filter (43).

In addition, a pump heater (II 1 ) for anti-freezing is provided around the outer circumference of the circulation pump (P), and the heater (If
1) is controlled by the control unit (C) according to the temperature detection result of the bath in the bath water bullet conveying pipe (11) by the bath water temperature detection sensor (T), thereby controlling the temperature in the bath in the circulation pump (P). This prevents freezing of the water.

The pump drive motor (M) is a three-phase induction fan type, and (39a) is a rotor attached to the outer peripheral surface of the drive shaft (39) of the pump drive motor (M).
The rotor (
37) and a fixed magnetic pole installed with the inner and outer sides facing each other, (39c
) is a cooling fan.

In addition, the inverter (E) interposed between the pump drive motor (M) and the output interface (51) is connected to the AC commercial power supply according to a program stored in the memory (52) of the control unit (C), which will be described later. The system performs conversion processing on the input frequency supplied from the oscilloscope. In other words, the inverter (E) converts the power from the AC 100V power source into 20V.
0V, three-phase variable speed motor drive □ It outputs electricity.

Then, the rotation speed of the pump drive motor (M) is controlled in proportion to the output frequency converted by the inverter (E), and the rotation speed of the circulation pump (P) is controlled by this control, so that each injection The amount, pressure, and time of the bath water spouted from the nozzles (2), (3, and 4) can be changed according to the above program.

In this way, the circulation pump (
Since the rotation speed of P) can be controlled smoothly and reliably, the following effects are produced.

■By cooperating with changing the rotation speed of the circulation pump (P) by the inverter (E) and opening/closing operation of each jet nozzle (2), (3)', and (4), the jet flow shape can be adjusted to the bather's preference. Since it can be changed in various ways according to the bathers' preferences, it is possible to fully respond to a wide variety of bathers' preferences.

■By changing the rotational speed of the circulation pump (P) using the inverter (E), the jet strength can be changed in several steps or steplessly depending on the bather's preference, so It can give you a sense of satisfaction.

■In addition to the opening and closing operations of each jet nozzle (2), (3), and (4), the rotation speed of the circulation pump (P) is controlled by the inverter (E).
), it is possible to change from one jet form to another smoothly and gently, and even change the jet strength of various jet forms smoothly and gently. It does not cause discomfort to people.

■Since the inverter (E) can apply a slow start-up rotation speed to the circulation pump (P), the sudden spout of hot water can cause problems for bathers, especially children and the elderly.
Accidents such as falling can be prevented from occurring.

■Since the inverter (E) can apply a slow startup speed to the circulation pump (P), it is possible to prevent the circulation pump (P) from taking in air and spinning idly. P) can ensure smooth eruption of the bath.

(2) Since the inverter (E) can apply a slow rising rotational speed to the circulation pump (P), it is possible to reduce the sound of air being discharged from the piping, thereby reducing noise.

■When changing the jet strength and jet form by changing the jet amount and jet pressure of the bath water as in this example, the inverter (E) is used to adjust the rotation speed of the circulation pump (P) appropriately. Since it is possible to control and save unnecessary power, power saving can be achieved.

- Since the circulation pump (P) can be reversely rotated by the inverter (E), contaminants such as dust in the piping can be discharged.

[:ll-43 filter description The configuration of the filter will be explained below.

As shown in FIG. 12, the filter (43) has an acrylic mesh (43b) stretched in the lower part of the filter body (43a), and a filter material (43c) is provided on the mesh (43b). A baffle (43d) is installed on the inner surface of the earthen wall of the filter body (43a).
) is installed and configured.

One end of the lead-in pipe (41) is connected to the upper end of the filter main body (43a), and the filter main body (43a) is
Return to the lower end of a) and connect one end of the vibrator (42) for communication;
Then, the bath water can be filtered by passing it through the filter material (43e) from above to below the filter body (43a).

In addition, a filtration heater (H2) for anti-freezing is provided around the outer periphery of the filtration machine (43), and the heater (+12) is
Bath water filling pipe (ii) by bath water temperature detection sensor (T)
) The bath in the filter (43) can be prevented from freezing by controlling the control unit (C) according to the temperature detection result of the bath in the filter (43).

In addition, an electric three-way valve (45) is provided in the middle of the lead-in pipe (41), and a drainage vibrator (46) is connected to one end of the electric three-way valve (45), and the electric three-way valve (45) is used to draw the pipe. The vibrator (41) and the drain pipe (46) can communicate with each other.

Then, the electric three-way valve (45) is switched to connect the lead-in pipe (41) and the drain pipe (46) to the upper and lower impellers (33a) (34) of the circulation pump (P).
By rotating a), a part of the bath is returned through the vibrator (42) and passed through the filter medium (43c) from below to above the filter body (43a). ) can be cleaned.

Further, the switching operation of the electric three-way valve (45) can be performed by turning on a filter cleaning switch (117) of the operation panel section (6), which will be described later.

[■-5] Description of control section The configuration of the control section will be explained below.

As shown in FIG. 3, the control unit (C) includes a microprocessor (MPU) and an input/output interface (50) (
51), a memory (52) consisting of ROM and RAM, and a timer (53).

In the above configuration, the input interface (5
0) includes a valve body reference position detection sensor (23r) that detects the opening/closing amount of the ejection amount regulating valve (22), and a valve reference position detection sensor (9) that detects the opening/closing amount of the bubble amount regulating valve (87).
1), a pressure detection sensor (48) that detects the water pressure in the bathtub injected vibrator (ll), a bathwater temperature detection sensor (T) that detects the temperature of the bathwater in the bathtub body (1), and an operation panel section. (8
) and an infrared receiving sensor (30b) that receives an infrared driving signal from the remote controller (30).

On the other hand, the output interface (51) includes a clock display section (115) and a bath water temperature display section (llB) of the operation panel section (6), which will be described later, a pump drive motor (M), and a nozzle valve body for opening and closing operation. Motor (Ml), motor for opening/closing valve body for adjusting air bubble volume (M2), heater for pump (old)
, a filtration Fukagawa heater (H2) and an electric three-way valve (45) are connected. In addition, the pump drive motor (M) is connected to the output interface (51) via the inverter (E).
is connected to.

The memory (52) also stores information about each motor (M) (old) (M2) based on the output signals from the above-mentioned sensors and the drive signal from the operation panel (6) or remote controller (30). A drive sequence program for driving drive units such as the electric three-way valve (45) and the like is stored.

(n-6) Description of operation panel section The operation panel section (6) for manually sending drive output to the control section (C) will be described below with reference to FIG. 13.

The operation panel section (6) is fixedly installed near the bathtub body (1) or on the upper surface of the edge (la) of the bathtub body (1), and has an operation switch (100) and a blow operation switch. Mild blow switch (101), Shiatsu blow switch (102), Pulse blow switch (
103), wave blow switch (104), cycle blow switch (105), program blow switch (10B), and bath water spout strong/open side switch (1
07) (108) and the dorsal jet nozzle usage pattern switch (1), which is a switch for switching the jet nozzle usage pattern.
11) , Foot side jet nozzle use pattern switch (11)
2) , and ventral jet nozzle usage pattern switch (1)
13), a timer switch (114), a clock display section (115) that also serves as a one-hour timer display section, a bath water temperature display section (118), a filter cleaning switch (117), a clock display section ( 115), a time setting switch (11g), an hour setting switch (119), and a minute setting switch (120).

Then, by turning on the operation switch (100), it is possible to start a blow operation, which will be described later.

In addition, by turning on the filter cleaning switch (117), it is possible to start the filtration-like cleaning operation in preference to the blowing operation, as described later, and by turning it OFF, the filtration-like cleaning operation can be stopped. can be done.

Also, (loOa) turns on the operation switch (100)
L.

(101a) (1)
02a) (LO3a) (104a) (105a)
(108a) is each blow operation switch indicator lamp, (1
09a) (109b) (109e) (109d)
(109e) is a strength level indicator lamp, (111a)
(112a) and (113a) are foot side, dorsal side, and ventral side display lamps, respectively, and (121), (122), and (12, 3) are each selection pattern A for pulse blow, wave blow, cycle blow, and program blow, which will be described later. -B-
The lamp (117a) that displays C is a filter cleaning indicator lamp, and (117b) is a filter cleaning operation indicator lamp.

Further, as shown in FIG. 13, the operation panel section (6) is equipped with an infrared receiving section (Bob) at the negative end, and can be operated in advance by operating each switch provided on a remote controller (30) to be described later. Based on the set serial code transmission signal, when a predetermined code signal corresponding to each switch is transmitted from the infrared transmitter (30a) provided in the remote controller (30), the signal is transmitted to the infrared receiver (30b). The detection signal is detected by the control unit (C
) to drive a desired drive device based on the drive program read out from the memory (52).

In addition, on the top surface of the operation panel section (6), an opening/closing lid (125
) is installed so that it can be opened and closed freely, and the opening/closing lid (125) allows the timer switch (114), clock display section (115),
It covers each switch and each indicator lamp other than the bath water temperature display section (11B), the filtration cleaning operation indicator lamp (117b), and the infrared receiving section (30b).

Further, the operation panel section (6) can be configured integrally with the air intake section (5) to make the operation panel section (6) more compact and improve its aesthetic appearance.

Further, the infrared receiving section (30b) is connected to the operation panel section (6).
In addition, it can be installed at a location where it is easy to receive infrared rays.

(Description of the II-73 remote controller Below, apart from the operation panel section (6) mentioned above, the remote controller (30) is used to manually send drive output to the control section (C) in the bathing state. explain.

The remote controller (30) is shown in FIGS. 14 and 15.
As shown in the figure, there is an operation switch (60), a mild blow switch (81) which is a blow operation switch, and a shiatsu blow switch (62L pulse blow switch (B3)).
, wave blow switch (B5), cycle blow switch (66) and program blow switch (67)
, a strong bath water jet/local switch (88) (69), a foot jet nozzle usage pattern switch (74) which is a switch for switching the jet nozzle usage pattern, a dorsal jet nozzle usage pattern switch (75), and It is equipped with a ventral side jet nozzle usage pattern switch (7B).

Then, by turning on the operation switch (60),
This makes it possible to start a blow operation, which will be described later.

The remote controller (30) also includes an infrared transmitter (30a) at the front end and a blow status display section (130) at the top of the front.

The blow state display section (10) allows the blow state to be visually recognized in order to improve the usability of the remote controller (30).

That is, the blow state display section (130) includes a jet flow type character display section (131) and a wave blow display section (132).
), a bath water spout position display section (133), and a strength level display section (134).

The jet flow type character display section (1, 31) is placed on the right half of the blow state display section (130), with a mild blow display section (135), an acupressure blow display section ( 13B), pulse blow display section (137
), wave blow display section (138), cycle blow display section (139) and program blow display section (+
40), a pulse blow display section (H7), a wave blow display section (138), a cycle blow display section (
139), and a selection pattern A-B-C display section (137a) (on the right side of the program blow display section (140)).
138a) (139a) (140a) are provided.

Further, the character display in the jet flow type character display section (131) described above is performed by liquid crystal.

In addition, on the left half of the blowing state display section (130), there is a bathtub periphery line (144) that graphically represents the periphery of the bathtub body (1).
and a bather diagram (145) in which the bather is graphically displayed within the bathtub circumference line (144), and the above-mentioned wave blow display section ( 132) and the bath spout position display section (133
) has been established.

The wave blow display section (132) includes a thin wave blow display line (L) within the bathtub periphery line (144).
32a) are provided at intervals in the longitudinal direction, and the electronic display band formed by the display line (132a) is sequentially blinked by the liquid crystal to express the state of the waves coming and going, and the wave blow operation state is shown. It is configured so that it can be visually recognized.

In addition, the bathtub spout position display section (133) indicates the bathtub peripheral line (
A total of six display units (133) are installed at positions corresponding to the installation of the jet nozzles in the display unit (144), and each display unit (133) is lit or flashed by a liquid crystal display, so that the state of use can be visually recognized.

In addition, the strength level display section (1, 34) is provided at the bottom of the blow state display section (130) on the paper, and shows "strong", "midway", "medium", "medium weak" as described later. , a strong indicator lamp (L34a), an intermediate indicator lamp (134b), a medium indicator lamp (134c), a medium-weak indicator lamp (L34d), and a weak indicator lamp (134e) that display each strength level set in three stages of ``weak''. ) are arranged horizontally in a row. The strength level display section (134) is also displayed using liquid crystal. In addition, the blow status display section (1
30) The characters "strong" and "weak" inside are printed.

Moreover, the remote controller (30) is configured to be able to float on the surface of the bath water (with a specific gravity of 0.01 to 1), so that a bather can operate it while taking a bath.

With the above configuration, in the bubble generating bathtub (A) obtained in this example, the pump drive motor (M) and the nozzle valve body can be opened and closed by operating the remote controller (80) on the bath water surface. Operating motor (Ml
), a motor (M2) for opening/closing the valve body for regulating the amount of air bubbles, and a driving device such as an electric three-way valve (45) are driven and controlled via a control unit (C), and a circulation pump is driven by each driving device. (P) rotation speed, each jet nozzle (2) (3) (4
), the opening/closing amount and opening/closing speed of the valve body (22) for regulating the ejection volume provided in the air intake part (5), and the air bubble volume regulating valve (5d
) and the switching speed of the electric three-way valve (45).

Then, by adjusting the rotational speed of the circulation pump (P), adjusting the opening/closing amount and opening/closing speed of the jet volume regulating valve body (22), or a combination thereof, the amount and volume of jets jetted from each jet nozzle in the bath are adjusted. You can set various jet modes (mild blow, shiatsu blow, pulse blow, wave blow, cycle blow, and program blow) with different pressures and amounts of air bubbles mixed in, and each jet mode can be controlled by a remote controller ( The selection can be made by turning on/off a blow operation switch provided at 30).

Moreover, for each jet flow type, by operating the hot water jet strong / local side switch (6g) (89) ONφOFF, the hot water jet can be adjusted to three levels (strong, middle, medium, medium weak, weak). It can be adjusted to.

Furthermore, by turning ON/OFF each changeover switch (lot) (102) for the jet nozzle usage pattern, it is possible to select the usage pattern of the six jet nozzles to which the above-mentioned jet flow form is applied. I have to.

This selection operation changes the initial settings to each of the six jet nozzles (
2) (2) (3) (3) (4) All of (4) can simultaneously jet out bath water, and then, depending on the user's preference, each jet nozzle (2), (3) ( 4) The hot water can be spouted and stopped by turning on and off the corresponding spout nozzle usage pattern switches (74), (75), and (76).

[Margin below]

[ml Description of Jet Forms Below, the jet forms obtained by this example (mild blow, acupressure blow, pulse blow, wave blow,
Regarding cycle blow and program blow, the first
This will be explained based on FIGS. 6 to 26.

(III-13 Mild Blow For mild blow, each jet nozzle (2) (3) (4)
The bath water is in the form of a jet with a large amount of water and a low jet pressure, and it is mild and soft, enveloping the entire body of the bather, giving the bather the sensation of a stimulating massage.

In other words, the mild blow is performed by each jet nozzle (2) (
3) Operate each of the injection amount adjustment valve bodies (22) in (4) almost fully open, and change the rotation speed of the circulation pump (P) within a certain range (for example, within the range of 1700 to 3000r, p, IIl). Then, the discharge pressure of the pump (P) is set to several levels (for example, three levels) of strength within a constant low pressure range (for example, 0.2 to 0.5 kg/cd), and each jet Nozzles (2), (3), and (4) have a larger volume of baths (e.g., 4
0 to 8 ON/m1n).

In addition, Fig. 16 shows an injection amount-injection pressure characteristic curve (Fl) (F
2) (F3) is exemplified, and (Nl) (N2) (N3
) (N4) is the rotation speed performance curve of the circulation pump (P). However, the magnitude relationship of the rotation speed is Nl>N2>N3>
It is N4.

In addition, the ejection amount-ejection pressure characteristic curve (Fl) in Fig. 16a
The upper point (b) shows the mild blow state when the rotational speed of the circulation pump (P) is around the maximum (N1) (for example, 3000r, p, 11). (Yl) indicates the mild blow zone, and the point (bl) (b
2) shows a mild blow state set within the same mild zone (Yl).

Furthermore, FIG. 17 shows examples of jet nozzle characteristic curves R1, R2, and R3 when the jet flow rate adjusting valve body (22) is fully opened, half opened, and quarter opened. ul,
N2, N3... are jet pressure lines. however,
The magnitude relationship of the ejection pressure is ul<N2<N3...

Further, point (b) in FIG. 16a can be expressed as b'), which is dotted on the jet nozzle characteristic curve (R1) shown in FIG. 17a.

In addition, in Fig. 17a, (Y'l) indicates the mild blow zone in the jet nozzle characteristics, and the point (b'1
)(b'2) indicates a mild blow state set within the same mild blow zone (Y'l).

Moreover, the above-mentioned mild blow is activated by turning on the mild blow switch (61) of the remote controller (30).

In addition, when changing the strength level of the mild blow or changing the jet nozzle usage pattern, each switch can be changed for a short time (
For example, I try to do this every 1 second).

In addition, Fig. 18 shows the foot side, dorsal side, and ventral side jet nozzles (2).
(3) It is a timing chart of the opening/closing operation of each of the injection amount adjusting valve bodies (22) and the operation of the circulation pump (P) in (4).

The valve bodies (22) for adjusting the jetting amount of the foot side, dorsal side, and ventral side jetting nozzles (2), (3), and (4) are operated for a certain period of time (tl) (for example, 0 seconds)
After a certain period of time (R2) (for example, 1 second), at high speed (preferably maximum speed), the valve is moved from the intermediate position (dl) (the valve opening position before changing the jet flow form) to the set valve opening position (R2) (for example, , the valve is operated to the open position, which is six signals backward from the fully closed position.

The circulation pump (P) is operated by each ejection amount adjusting valve body (2
Immediately before the time (t't) at which the setting valve opening operation ends in 2) has passed, the rotation speed (vl) (for example, 2800r, I), 1) before changing the jet flow form is gradually decreased, and (t'2) (for example, 3 seconds) at a certain number of rotations (■2
) (for example, 2400r, p, m).

In addition, in this embodiment, the operation is started (operation switch (60)
) or (100)), the blow operation starts. At the start of the blow operation, the circulation pump (P
) has a child safety function that slowly increases the rotation speed.

The subsequent jet flow form is initially set as the above-mentioned mild blow, and the strength level is set to "medium".

Moreover, in this embodiment, as shown in the timing chart of FIG. 19, at the start of operation, only the valve body (22) for adjusting the jetting amount of the back spouting nozzle (3) is once closed to the fully closed position. This prevents the cold remaining water in the piping used last time from spouting out from the back spout nozzle (3), causing discomfort to bathers or causing danger to bathers (see below). , such blowing operation is referred to as [child safety blowing]).

That is, in FIG. 19, the ejection amount adjusting valve body (22) of the back ejection nozzle (3) is adjusted to a constant state after a certain period of time (tl) (for example, 0 seconds) has elapsed since the mild plow switch was operated (to). The time (R2) (for example, 1 second) is a high speed (preferably maximum speed), and the valve is closed by operating from the intermediate position (stop position) to the fully closed position, and the valve is kept in the closed state for a certain period of time (R3). After holding it for (for example, 2 seconds),
For a certain period of time (R4) (for example, 1 second), the valve is operated at a high speed (preferably at the maximum speed) up to the set valve opening position (d2) (for example, the valve opening position is 6 degrees back from the fully closed position).

When the mild blow switch is operated, the valve body (22) for adjusting the jetting amount of the other foot side and ventral side jetting nozzles (2) (4)
After a certain period of time (tl) (e.g., 1 second) has elapsed from (to), a certain period of time (t2) (e.g., 1 second) is at high speed (preferably maximum speed), and the opening position (di) (position at stop).
from the fully open position (d2) (for example, from the fully closed position to 6
The valve is operated up to the open position (with the valve retracted).

The circulation pump (P) has a dorsal side jet nozzle (3).
Immediately after the time (t'l) at which the valve-closing operation of the injection amount regulating valve body (22) ends has passed, the rotation speed is slowly and gradually increased by inverter control for a certain period of time (t'2). (for example, 10 seconds) within a certain number of rotations (
V2) (For example, 28 (lor, p, m) Tonaruyo l: L, "C".

In addition, the mutual control timing of the opening/closing operation of the valve body (22) for controlling the jet amount of each jet nozzle (2) (1) (4) and the change of the rotation speed of the circulation pump (P) may cause discomfort to the bather. This is done in consideration of preventing the discharge pressure of the circulation pump (P) from increasing rapidly, and this will be explained later in (IV-73).

(III-23 Shiatsu Blow Shiatsu Blow is a jet style in which the amount of hot water jetted out from each spout nozzle (2) (3) (4) is small and the jet pressure is high. By applying the jet stream well, it gives the bather a stimulating pine surge sensation with acupressure sensation.

In other words, the acupressure blow blows each jet nozzle (2) (3)
(4) Slightly operate each jetting amount adjustment valve body (22),
The rotation speed of the circulation pump (P) is within a certain range (for example, 20
00 to 3000 r, p, m), and several steps (for example, 0.5 to 1.0 kg/cd) within a high pressure range where the discharge pressure of the pump (P) is set constant. For example, the strength level can be set in three levels.

In addition, the ejection amount-ejection pressure characteristic curve (R8) in Fig. 16a
The point (e) on the top is the one that minimizes the amount of hot water spouted out (for example, 3
This shows the state of acupressure blow when the setting is ON/l1lin).

In addition, in Fig. 16a, (Y2) indicates the acupressure blow zone in the ejection amount-ejection pressure characteristic, and the point (el) (
e2) indicates the acupressure blow state set within the same acupressure blow zone (Y2).

Further, point (e) in FIG. 16a can be represented as a point (e') on the jet nozzle characteristic curve (R3) shown in FIG. 17a.

In addition, in Fig. 17a, (Y'2) indicates the acupressure blow zone in the jet nozzle characteristics, and point (e'l)
(e'2) shows the acupressure blow state set within the same acupressure blow zone (Y'2).

In addition, the above-mentioned shiatsu blow can be used with a remote controller (
It is activated by turning on the acupressure blow switch (62) (30).

Also, Figure 20 shows the foot, dorsal, and ventral jet nozzles (2).
(3) It is a timing chart of the opening/closing operation of each of the injection amount adjusting valve bodies (22) and the operation of the circulation pump (P) in (4).

That is, in FIG. 20, each ejection amount regulating valve body (22
) is a certain time (t2) after a certain time (tl) (for example, 0 seconds) has elapsed since the acupressure blow switch operation (to)
(For example, 1 second) is a high speed (preferably the maximum speed), and the set valve opening position is determined from the valve opening position (di) before changing the jet flow form (for example, the valve opening position 6 m + * retreated from the fully closed position). (d2) (For example, 1.5 mm from the fully closed position
The valve is operated to open until it reaches the retracted valve opening position.

The circulation pump (P) is operated by each ejection amount adjusting valve body (2
Immediately after the time (t'l) at which the set valve opening operation in 2) ends, the rotation speed m> (for example, 2
40Or, I), m) for a certain period of time (
The rotation speed is set to a constant rotation speed (2) (for example, 28 GOr, p, a+) within t"2) (for example, 3 seconds).

[m-3) Pulse blow Pulse blow uses individual jet nozzles (2) (3) (
4) is a type of jet that is periodically opened and closed to alternately emit and stop the water in the bath, and by emitting and not emitting the jet in pulses, it can give a sharp stimulation to the bather. be.

That is, in the pulse blow, in the acupressure blow,
The valve body (22) for adjusting the jetting amount of each jetting nozzle (2) (3) (4) is set at a high speed (preferably maximum speed) for a short period of time (for example, 1 second) to the valve opening position. and the fully open position alternately. Thereby, a state in which the bath is ejected and a state in which the bath is not ejected can be alternately generated. Note that when ejecting the bath, there are cases in which bubbles are included and cases in which bubbles are not included.

The strength level of the pulse blow can be changed by changing the rotation speed of the circulation pump (P) to keep the blowout amount in the bath within a certain range (for example, 30 to 504/aki).
n) can be set in several stages (for example, five stages).

Further, the above-mentioned pulse blow is activated by turning on the pulse blow switch (83) of the remote controller (30).

Also, Figure 21 shows the foot side, dorsal side, and ventral side jet nozzles (2).
(3) It is a timing chart of the opening/closing operation of each ejection amount adjusting valve body (22) in (4) and the operation of the circulation pump <P.

That is, in FIG. 21, each injection amount adjusting valve body (2
2) is the valve open position (di) before changing the jet flow form (for example, 6 from the fully closed position) after a certain period of time (tl) (e.g., 0 seconds) has elapsed since the pulse blow switch was operated (tO).
Set valve opening position (d2) (retracted valve opening position)
For example, the valve is operated at a high speed (preferably maximum speed) for a certain period of time (t2) (for example, 1 second) until the valve is opened to the open position, which is two positions backward from the fully closed position, and the valve is maintained in the open state for a certain period of time (t2) (for example, 1 second).
3) After maintaining it for a certain period of time (for example, 1 second)
) (e.g. 1 second) is a high speed (preferably maximum speed)
After closing the valve to the fully closed position and maintaining the fully open state for a certain period of time (15) (for example, 1 second),
tO) (for example, 1 second), the valve is opened at a high speed (preferably maximum speed) to the above-mentioned set valve opening position (d2), and the same valve opening state is maintained for a certain period of time (t7) (for example, 1 second). After that, the valve is opened and closed, which is repeated periodically.

Then, the circulation pump (P) operates for a certain period of time (t'l) (for example, 1
seconds), the rotation speed (vl) (e.g. 2400r, +), Im) before changing the jet flow form is gradually increased until the rotation speed is increased within a certain period of time (t'2) (e.g. 3 seconds). It is made to have a constant rotation (V2) (for example, 280 Or, Ls+).

Also, a certain period of time (t3) for maintaining the above set valve open state.
Different pulse blow patterns can be set by changing .
Three types of patterns φB-C are set so that the stimulation time given to the bather by the jet stream can be selected according to preference.

(m-4) Wave blow Wave blow is a jet flow type that periodically changes the rotation speed of the circulation pump (P) to periodically change the amount and pressure of the jet in the bath. By changing the flow in a slow cycle, we create a flow rich in variation.
It gives the image of a jet of waves that approaches and returns to the bather.

In other words, the wave blow is performed by each jet nozzle (2) (3).
) (4) Each of the injection amount adjustment valve bodies (22) is fully opened or fully opened, and the operation of the circulation pump (P) is turned on and off.
F or the rotation speed of the circulation pump (P) is periodically changed within a certain range (for example, within the range of t6oo to 3000r, p, m).

And, changing the strength level of the wave blow,
The rotation speed range of the circulation pump (P) that is periodically changed can be set in several stages (for example, five stages) within the above-described fixed rotation speed range.

In addition, (di) (d2) (d3) shown in FIG. 16b are
Each of these is a wave blow jet amount-spout pressure characteristic curve, and the jet amount and jet pressure of bath water change along each curve (di), (d2), and (d3).

In addition, (d'1) (d'2) (d'3) shown in FIG. 17b
) are the jet nozzle characteristic curves for wave blowing, and wave blowing allows the amount of bubbles to be changed significantly.

Further, the above-described wave blow is activated by turning on the wave blow switch (65) of the remote controller (30).

Further, the usage pattern of the jetting nozzle for jetting bath water in such wave blowing is the same as in the case of mild blowing described above.

Also, Figure 22 shows the foot side, dorsal side, and ventral side jet nozzles (2).
(3) This is a timing chart of the opening/closing operation of each of the injection amount adjusting valve bodies (22) and the operation of the circulation pump (P) in (4).

That is, in FIG. 22, each injection amount adjusting valve body (2
2) means that after a certain period of time (tl) (e.g. 1 second) has elapsed since the wave blow switch was operated (to), the valve is moved to the open position (di) before changing the jet flow form (e.g. 6 from the fully closed position).
The set valve opening position (d2) (
For example, the valve is operated at a high speed (preferably maximum speed) for a certain period of time (t2) (for example, 1 second) until the valve is opened (for example, the valve is opened to the position 4+n+s backward from the fully closed position).

The circulation pump (P) is operated by each ejection amount adjusting valve body (2
2) Immediately after the time (t3) at which the valve opening operation ends, the rotation speed (m) before changing the jet flow form (for example, 24
00r, p, a) is gradually increased for a certain period of time (t4
) (for example, 4 seconds) to a certain high rotation speed (v2) (for example, 3000r, l1l), and then gradually reduce the rotation speed to a low rotation speed within a certain period of time (t5) (for example, 4 seconds). Rotation speed (V3) (e.g. 1800r, p, s)
Then, the number of revolutions is gradually increased to a certain period (to).
The rotational speed is periodically changed such that the rotational speed is set to the above-mentioned high rotational speed (v2) within (for example, 4 seconds).

In addition, different wave blow patterns can be set by changing the periodic variation of the rotation speed of the circulation pump (P), but in this embodiment, the above-mentioned wave blow pattern is set as wave blow A, The wave blow patterns explained below are wave blow B and C.
We have set three types of patterns.

That is, as shown in the timing chart of FIG. 23, the wave blow B starts immediately after the time (t3) at which the set valve opening operation of each jet amount adjusting valve body (22) ends, and before the jet flow form is changed. rotational speed (Vl) (for example, 240
Or, p, m) is gradually increased for a certain period of time (t4).
(for example, 4 seconds) to a certain high rotation speed (V2) (for example, 3000r, p, s+), and
) for a certain period of time (t5) (for example, 2 seconds), and then gradually reduce the rotation speed to a low rotation speed (V3) (for example, 180
0r, p.

l), and the same low rotation speed (v8) for a certain period of time (t7) (
For example, the rotation speed is changed periodically, such as continuing for 2 seconds) and then gradually increasing the rotation speed to reach the above-mentioned high rotation speed (v2) within a certain period of time (t8) (for example, 4 seconds). I'm letting you do it.

In addition, as shown in the timing chart of FIG. 24, the wave blow C starts immediately after the time (t3) at which the set valve opening operation of each jet amount adjusting valve body (2z) ends and before the jet flow form is changed. Rotation speed (Vl) (for example, 24GOr
, p, w) in a downwardly convex curve to a constant high rotational speed (V2) (for example, 3000 r, p, l) within a certain time (t4) (for example, 3 seconds). ,
After that, the rotation speed is increased for a certain period of time (t
5) Set the rotation speed to low (V3) (for example, 18GOr, p, i) within (for example, 3 seconds), then gradually increase the rotation speed in a downward convex curve for a certain period of time (t6)
The rotational speed is changed periodically such that the rotational speed is increased to the above-mentioned high rotational speed (v2) within (for example, 3 seconds).

In this embodiment, in particular, since the rotation speed of the circulation pump (P) is controlled by the inverter (E), the rotation speed of the circulation pump (P) is controlled by the inverter (E).
By smoothly and reliably changing the rotational speed of P), strong pulsating wave blows A-B and C can be generated in a fleeting, weak jet.

Among them, in wave blow 〇, the rotation speed of the circulation pump (P) changes in a nearly catenary curve, and the rotation speed increase rate and rotation speed decrease rate are large near high rotation speed, and the rotation speed decrease rate is large near low rotation speed. Because the rotation speed increase rate and rotation speed decrease rate are small, strong changes in the jet flow occur in a relatively short time, and weak changes in the jet flow occur over a relatively long time, creating a sharp and acupressure effect on the bather. It can be made into a jet form with .

(m-5) Cycle blow Cycle blow allows you to enjoy the change in the position of the bath by automatically and periodically changing the position from which the bath is jetted.

That is, the cycle blow is performed, for example, by blowing the dorsal side jet 7 nozzles (3) (3) - ventral side jet nozzle (4) (4) - leg side jet nozzles (2) (2) in the order of each jet amount adjustment for a certain period of time. The valve body (22) is opened to eject the bath water, and at this time, the form of the bath water that is spouted from each spout nozzle (2), (3), and (4) is determined by each spout amount adjusting valve body (22). By adjusting the amount of opening/closing and the rotational speed of the circulation pump (P), it is possible to obtain mild blow, acupressure blow, wave blow, and even a jet flow form in which mild blow and acupressure blow are periodically changed.

In this example, three types of cycle blow patterns A-B-C are set, and each cycle blow pattern is described below.
-C will be explained based on the timing charts shown in FIGS. 25 and 26.

The cycle blow A takes the form of acupressure blow, and as shown in the timing chart of FIG.
(for example, 0 seconds), only the jet volume adjustment valve body (22) of the back jet nozzle (3) is moved back by 61111 from the valve open position (di) (for example, the fully closed position) before changing the jet flow form. Valve opening position) to set valve opening position (d2) (for example,
The valve is operated at a high speed (preferably maximum speed) for a certain period of time (t2) (for example, 1 second) until the valve opens to the valve open position, which is 1.5n+m backward from the fully closed position, and the valve is operated at high speed (preferably maximum speed), Each ejection amount adjusting valve body (22) of the side ejection nozzle (4) is operated to close at a high speed (preferably maximum speed) for a certain period of time (t2) (for example, 1 second) until the completely closed position.

In this state, bath water in the form of acupressure blow is ejected only from the back side ejection nozzles (3) (3).

Then, the valve body (2) for adjusting the ejection amount of the back side ejection nozzle (3)
2) is held in the open position (d2) for a certain period of time (t3) (for example, 2 seconds), and then completely closed at a high speed (preferably maximum speed) for a certain period of time (t4) (for example, 1 second). The valve is operated until the valve is closed.

Subsequently, the valve body (22) for adjusting the jetting amount of the ventral jetting nozzle (4), which was in the closed state, is operated for a certain period of time (t5> (for example,
0 seconds) and then set the valve open position (d2) at high speed (preferably maximum speed) for a certain period of time (1B) (for example, 1 second).
The valve is operated for a certain period of time (t7) (e.g. 2 seconds), and held at the same set valve opening position (d2) for a certain period of time (t7) (for example, 2 seconds).
8) (for example, 1 second), the valve is closed at high speed (preferably maximum speed) to the fully closed position.

In this state, the bath in the form of acupressure blow is ejected only from the ventral ejection nozzle (4) (4).

Next, the valve body (22) for adjusting the jetting amount of the foot-side jetting nozzle (2), which was in the closed state, is operated for a certain period of time (t9) (for example,
0 seconds), the set valve opening position (d
2) for a certain period of time (tll) (for example,
After holding the same set valve open position (d2) for a certain period of time (tl2) (for example, 1 second), the valve is closed at high speed (preferably maximum speed) to the fully closed position.

In this state, bath water in the form of acupressure blow is ejected only from the foot-side ejection nozzles (2) (2).

Subsequently, after a certain period of time (tl3) (e.g. 0 seconds) has elapsed, the ejection amount adjusting valve body (22) of the back injection nozzle (3) which was in the closed state is turned on for a certain period of time (tl4) (e.g.
1 second) is operated at high speed (preferably maximum speed) to the set valve opening position (d2), and after holding at the same set valve opening position (d2) for a certain period of time (tl5) (for example, 2 seconds),
The valve is closed at a high speed (preferably maximum speed) for a certain period of time (tlB) (for example, 1 second) to the fully closed position.

In addition, the circulation pump (P) operates for a certain period of time (t'l) (for example, 0
seconds) after which the number of revolutions m) before changing the jet flow form (e.g. 2
800r, LIll) for a certain period of time (t'
2) A constant number of revolutions (V2) (for example, 2500v, p, m) is set within (for example, 1 second), and the same number of revolutions (■2) is maintained during the blowing operation.

Furthermore, although cycle blow B takes the form of acupressure blow, in the timing chart of cycle blow A described above, the setting of the jet amount adjusting valve body (22) of each jet nozzle (2), (3), and (4) is The only difference is that the fixed time period (ta) (t7) (01) for holding the valve open position (d2) is different (for example, 4 seconds).

In this way, in the cycle blow AφB, the valve body (22) for adjusting the jetting amount of each jetting nozzle (2), (3), and (4) is sequentially moved from the dorsal side to the ventral side to the foot side to the dorsal side at a constant cycle. Since the circulation pump (P) is opened and closed and the rotational speed of the circulation pump (P) is kept constant, the acupressure effect can be applied to all parts of the bather's body while changing the ejection position of the acupressure blow.

Furthermore, the cycle blow C takes the form of a wave blow, and as shown in the timing chart of FIG. For example, 4mm),
A certain period of time (ta) to hold the same set valve opening position (d2) (
t7) (tit) is different from that of cycle blows A and B (for example, 8 seconds).

Furthermore, the rotation speed of the circulation pump (P) is changed periodically.

That is, after a certain period of time (t'l) (for example, 0 seconds) has elapsed since the cycle blow switch was operated (to), the circulation pump (P) changes to the rotational speed (m (for example, 2400 r, p, m ) gradually decreases to a constant low rotational speed (
v3) (for example, 1800r, p, m), then
The rotation speed is gradually increased to a constant high rotation speed (v2) within a certain time (t'3) (for example, 4 seconds), and then,
The rotation speed is gradually reduced to a constant low rotation speed (v3) within a certain time (t'4) (for example, 4 seconds).

Then, the constant low rotational speed (v3) is maintained for a constant time (t
'4) After maintaining (for example, 1 second), the above-mentioned change in rotation speed (V3→■2→V3) is repeated.

This rotation speed change (V3-V2-V3) is performed only while bath water is being spouted from any of the spout nozzles (2) (3) (4), and each spout nozzle (2) (1)
While the jet volume regulating valve body (22) in (4) opens and closes, the timing is adjusted to maintain a constant low rotational speed (v3) to prevent sudden changes in the jet flow strength. , to avoid causing discomfort to bathers.

Therefore, each jet nozzle (
2)(8) From (4), bath water in the form of a wave blow will be spouted, and as the bath water spout position changes, you can enjoy the jet that gives the image of waves unique to wave blow.

In addition, in this example, the positions of the bath water spouts for cycle blows A, B, and C were changed from dorsal side to ventral side to foot side to dorsal side.
It is not limited to this order in any way; other orders (for example,
The dorsal side → foot side → ventral side - dorsal side) can also be taken. Also,
It is also possible to change the spouting position of the bath water irregularly.

(I [l-6) Program blow Program blow is a method of diversifying jet flow changes by arbitrarily combining or changing over time the jet form, jet strength, and jet location according to a preset program. You can enjoy the unexpected combination order of the jet flow forms, which is not a regular peeing method.

In addition, in this embodiment, multiple programs with different contents are prepared in consideration of the age, gender, etc. of the bather, and the program blow operation is a standard blow operation with the most common menu. A, program blow B, which is the hardest blow operation with the most intense menu, and program blow C, which is the lightest and gentlest blow operation, can be selected.

Each program blow A-B-C is as shown in the program blow specifications in Table 1.

In Table 1, ranks 2 and 3 are divided into three groups by dividing the plurality of jet forms described above into three groups, and the probability of occurrence of the jet forms within the same group is divided into three levels. The appearance probability of the jet form belonging to 5 is
0%, and the appearance probability of jet form belonging to rank 2 is 30.
%, and the probability of appearance of jet form belonging to rank 3 is 20%.
It is said that

Further, the strength level of the jet stream is set in five levels, with 1 being weak, 2 being medium-weak, 3 being medium, 4 being intermediate, and 5 being strong.

In program blow A, the strength level of the jet flow is set to 2 to 4 in order to perform a standard blow operation, and in program blow B, the strength level of the jet flow is set to 3 to perform a hard blow operation. In program blow C, the strength level of the jet stream is set to 1 to 3 in order to perform a light blowing operation.

In addition, the hot spring water is ejected from three locations (2), (3), and (4) at the same time: the foot, dorsal, and ventral nozzles (2), (3), and (4), and from any two locations at the same time. , there are cases where it erupts from any one place, and there is a case where it erupts from three places at the same time (legs, etc.).
(Dorsal/ventral), and cases of simultaneous ejaculation from two places (legs/back)
(Dorsal/Abdomen) (Feet/Abdomen) If there is only one place, it is indicated as (Feet).
It is indicated as (back) (belly).

In addition, each jet form, the strength level of the jet, and the jet position in the bath are changed after a certain period of time (for example, 30 seconds), giving bathers the pleasure of continuous change.
I try to keep the bathers from getting bored.

In addition, the jet flow shape is designed to prevent the same shape from appearing continuously, thereby ensuring the enjoyment of change for the bather.

In addition, each program blow A-B-C can be set to a constant blow time, and in this embodiment, program blow A is set to 4 minutes, program blow B is set to 5 minutes, and program blow C is set to 3 minutes. are doing.

Furthermore, several types of menus are set for each of the program blows A to BφC, and when one of the program blows is selected, the menu is randomly selected from among the selected program blows. You can also do it.

In this way, in program blow A-B-C, the jet form, jet strength, and jet location are changed irregularly in consideration of age, gender, etc. You can fully enjoy the unexpectedness and never get bored while taking a bath.

[Margin below]

[IV] Explanation of the operation of the bubble-generating bathtub [IV-1] Explanation of the operating procedure based on the flowchart Below, the operation of the above-mentioned bubble-generating bathtub (A) will be explained based on the flowcharts shown in FIGS. 27 to 32. do.

First, the main routine shown in FIG. 27 will be explained.

Insert the plug of the control unit (C) etc. into the power supply and supply power (
20 mouths).

All foot, dorsal, and ventral jet nozzles (2) (3) (
4) The motor for opening and closing the valve body for each nozzle (Ml
) are initialized (210).

Subsequently, the bubble generating bathtub (A) is brought to a halt state (2
15). In such a stopped state, the bubble generating bathtub (A)
The circulation pump (P) installed in the
) Various actuators such as (4) stop operating.

At this time, each jet nozzle (2), (3), and (4) is in a state in which the valve body opening/closing operation motor (Ml) for each nozzle is initially set, that is, in an open state in which the valve is retreated by 611IIl from the fully closed position. This allows for smooth supply and drainage of bath water when tensioning and draining water.

In addition, when the operation is stopped, the control section (C) is in a state of waiting for input, and even when the operation is stopped, the control section (C) controls the pressure detection sensor (48) and the bath water temperature detection sensor (T).
) - Controls such as hot water filling operation and antifreeze operation can be performed according to the detection results from -.

Next, the bathtub body (1) is detected by the bathwater temperature detection sensor (T).
) is within the temperature range (for example, 5 to 50°C) that allows blow operation (220)
.

In this example, the temperature range of the bath where blowing operation is possible is determined, taking into consideration the protection of bathers and synthetic resin piping, and the prevention of freezing of the bath water in the circulation pump (P), and the blowing operation is performed within this temperature range. This is one of the conditions for starting the operation, and the conditions for starting the blowing operation will be explained in detail later.

As a result, when the water temperature allows blow operation, (220Y
), the operation switch (ioo) or c (6o) can be turned on.

Then, turn on the same operation switch (100) or (6o).
(225Y), the pressure detection sensor (48), which also serves as a water level detection sensor, detects whether the water level of the bath water in the bathtub body (1) is at a level where blow operation is possible (for example, an inlet provided in the bathtub body (1)). (a position higher than the upper end position of lIll)) is detected (227).

゛In the present invention, in order to ensure blow operation, the upper end position of the inlet (1a+), which is the lowest water level at which bath water can be circulated in the bath water circulation flow path (D), is set at a position where blow operation is possible. As the lower limit of the water level, this water level is set as one of the conditions for starting the blowing operation, and the conditions for starting the blowing operation will be explained in detail later.

As a result, if the water level satisfies the water level that allows blow operation (227Y), then the bath water temperature detection sensor (T) detects that the temperature of the bath in the bathtub body (1) is within the temperature range that allows blow operation (for example, 5 to 50''C) is detected (230).

As a result, if the water temperature meets the temperature that allows blow operation (
Blow operation can be started at 230Y) (5
00).

The blowing operation (500) includes each blowing operation according to the jet flow type, a timer operation in which the blowing operation is performed within a preset time by the bather, and a timer operation that automatically cleans the filter (43) in parallel with the blowing operation. This is a general term for automatic filtration-like cleaning operation, and each blowing operation, timer operation, and automatic filtration-like cleaning operation will be explained later with reference to the subroutines shown in FIGS. 28, 29, and 30, respectively.

Then, turn off the operation switch (100) or 60).
(995Y), the operation will be stopped (215)
. Also, turn off the operation switch (100) or (60).
If not, blow operation will continue.

Furthermore, when the operation switch (100) or (60) is turned on (225), the filter cleaning operation can be performed immediately before or after the blowing operation (500), and by turning on the filter cleaning switch (117), A filter cleaning operation may be initiated (900). This filter cleaning operation will be explained later with reference to the subroutine shown in FIG. 31.

In addition, when the operation is stopped (215), if the water temperature does not meet the temperature that allows blowing operation (22ON), the pressure detection sensor (48), which also serves as a water level detection sensor, causes the water level in the bathtub body (1) to blow. It is detected whether the water level for operation is satisfied (235), and if the water level is not satisfied (235N), the operation is stopped (215).

In addition, when the water level for blow operation is satisfied (2
35Y), if the temperature is lower than the lower limit temperature (for example, 5° C.) of the temperature range in which blowing operation is possible (237Y), antifreeze operation is started (300).

Such antifreeze operation will be explained later with reference to the subroutine shown in FIG. 32.

In addition, the upper limit temperature of the temperature range in which blow operation is possible (for example,
If the temperature is higher than 50℃ (237N), the high water temperature warning will be activated (400) and the operation will be stopped (215). At this time, the high water temperature warning is to display rHJ, which indicates high water temperature, on the clock display section (115) of the operation panel section (6) at a rate of 1 per second.
This is done by flashing for 5 seconds and sounding a buzzer.

In addition, before starting blowing operation or during blowing operation,
If the water level is not sufficient for blow operation (227
N), 22g warning of low water level), operation is stopped (215). At this time, the water level drop warning is displayed on the clock display section (115) of the operation panel section (6).
This is done by flashing the LJ display every second for 15 seconds and by sounding a buzzer (not shown). Furthermore, in a bathtub equipped with an automatic water heater, a hot water operation can be performed.

In addition, before starting blowing operation or during blowing operation,
When the water temperature is not sufficient for blow operation (23O
N), the lower limit temperature of the temperature range that allows blow operation (e.g.
If the temperature is lower than 5° C. (237Y), antifreeze operation starts (300).

In addition, the upper limit temperature of the temperature range in which blow operation is possible (for example,
If the temperature is higher than 50℃ (237N), the high water temperature warning will be activated (400) and the operation will be stopped (215).

Next, the blow operation described above will be explained with reference to the subroutine shown in FIG. 28.

[Blow operation]

In the initial state, the blow operation has a child safety function that slowly starts up the circulation pump (P), and the subsequent jet flow form is programmed to be a mild blow and the strength level is set to "medium" (51).
0). This prevents accidents such as children's feet getting caught and falling due to the jet flow at startup.

A desired blow operation can be selected from the blow operation at startup by turning on each jet flow type switch.

That is, for other than mild blow, by turning on the acupressure blow switch (102) (62) (520
), acupressure blow operation can be operated (52
5).

Also, turn on the pulse blow switch (103) (63).
By doing so (530), (531), and (532), the valve blow ABC operations can be operated, respectively (535), (53B), and (537).

Also, by turning on the wave blow switches (104) (85), (540) (541) (542)
, wave blow ABC operation can be operated respectively (545) (54B) (547).

Also, by turning on the cycle blow switch (105) (8B), (555) (556) (557)
, cycle blow AφB-C operation can be operated, respectively (555) (558) (557).

Also, program blow switch (106) (67)
By turning on (580) (561) (562)
, program blow operation can be operated (585), (566), and (587), respectively.

Moreover, when returning to mild blow from another blow mode, the mild blow switch (101) (61) is turned ON again (510).

Further, by turning off the operation switch (100) or (60) (570), all blow operations can be stopped and the operation stopped.

In addition, in this embodiment, in order to adapt as much as possible to the wishes of bathers, in the case of mild blow operation, shiatsu blow operation, pulse blow operation, and wave blow operation, the spout position of the bath water is It is possible to perform operations to change the .

In addition, in the case of mild blow operation, finger pressure blow operation, pulse blow operation, wave blow operation, and cycle blow operation, an operation for changing the strength level of the hot water jet is provided.

The operation of changing the ejection position and strength level of the bath will be explained later.

Next, timer operation will be explained with reference to the subroutine shown in FIG. 29.

[Timer operation]

The timer operation allows the bather to set the desired blowing operation time and prevents hot flushes caused by a long bath.The operation of the timer operation will be explained below.

To start the timer operation, press the operation switch (100) on the operation panel section (6) to turn it on, and then press the timer switch (114) to turn it on (580Y).
5) The clock display changes to the timer one hour display, for example r5J representing 5 minutes set as the minimum blow operation time, and the timer one hour "5 minutes" can be set (585
), If you release the timer switch (114) to turn it off within a certain period of time (for example, 2 seconds) (590Y), the timer one hour display will become r5:00J after 2 seconds.
The timer operation starts, and the value displayed on the timer's one-hour display decreases every second (595).

In addition, if the timer switch (114) is not pressed and turned on during timer operation (SOON), and the timer operation time elapses and the timer one hour display reaches ro:00J (805), the timer switch (114) is not turned on (SOON). The timer flashes for 5 seconds every 0.5 seconds, and the buzzer sounds. After that, the timer operation ends (610), the operation stops, and the timer returns to the 1 hour display ([115
).

Also, if you want to set the timer one hour to a time other than the five minutes mentioned above, press and hold the timer switch (114) for more than two seconds (59ON), and the display of "5" above will change to 0.
．． Since it is increased in 1 minute increments every 5 seconds and returns to "1" after the maximum set value (for example, r19J), you can set your favorite blow operation time in the range of 1 minute to 19 minutes, for example. Yes (820).

Then, when the desired number (for example, "9") is reached, release the timer switch (114) to turn it off (
825Y), and 2 seconds later, the desired timer one hour (for example, r9: OOJ) is displayed, and the value displayed on the timer one hour decreases every second (595).

During timer operation, if you press the timer switch (114) to turn it on (600) and release it within 2 seconds to turn it off (630Y), the timer operation will be canceled at that point (635), and the timer will change from one-hour display to clock display. return.

At this time, the blowing operation continues (640).

Also, while the timer is running, the timer switch (114)
If you press and hold the timer switch (114) for more than 2 seconds to turn it on (63ON), the timer one hour setting will be displayed with one minute added to the current minute display. The timer operation time can be increased in units of one minute (820).

Then, when the desired value is reached, switch the timer (
114) to turn it off (625Y), the desired one-hour timer is displayed two seconds later, and the value displayed on the one-hour timer decreases every second (595).

In addition, timer operation has priority over blow operation, and can be operated regardless of the jet flow type (including when the operation is stopped).

It is also possible to change the jet flow form while the timer is running (including stopping the operation).

In addition, during the timer operation, at all timings related to the timer operation, such as setting the timer for one hour, the clock display section (115) of the operation panel section (6) lights up the timer one hour using a light emitting diode. . Note that the clock display section (115) is always lit when not displaying the clock.

Therefore, setting the timer for one hour can be easily performed.

In addition, in the blow operation state, for a certain period of time (for example, 3
0 minutes) If there is no input from the operation switch, the blowing operation is stopped.

In this way, by stopping the blowing operation after a certain period of time, it is possible to prevent the problem of the bather forgetting to stop the blowing operation and continue the blowing operation for a long time. Efforts are being made to protect piping, etc.

Further, even when the blowing operation is stopped by the timer as described above, the buzzer sounds for 5 seconds immediately after the stop to notify that the blowing operation has been stopped by the timer.

Next, automatic filtration-like cleaning operation will be explained with reference to the subroutine shown in FIG. 30.

[Automatic filtration-like cleaning operation]

In the automatic filtration-like cleaning operation, the filter (43) is automatically cleaned in parallel with the blowing operation, and the cumulative time of the blowing operation (the cumulative time from the start of the circulation pump (P)) is 760Y after a certain period of time (for example, 1 hour) has elapsed.
), and in the case of blow operation that satisfies the automatic filtration-like cleaning conditions (785Y), the automatic filtration-like cleaning operation is started (785Y).
70).

Here, the automatic filtration-like cleaning conditions are when the water level and temperature are satisfied to allow blow operation, and the jet flow type is mild blow, shiatsu blow, wave blow, or cycle blow, and the strength level is strong. , on the way, or in the middle.

Then, the automatic filter cleaning operation time is set for a certain period of time (for example,
When one minute) has elapsed (780Y), the automatic filtration-like cleaning operation ends, but the blowing operation continues, and the cumulative blowing operation time restarts (785).

In addition, if the automatic filtration-like cleaning conditions are no longer satisfied (interrupted) due to changes in the jet flow form or strength level during automatic filter cleaning operation (775Y), the number of retries due to interruption will be a certain number of times (e.g. , 4 times) (79ON), the automatic filtration-like cleaning operation is interrupted. Start operation (770).

On the other hand, if the number of interruptions during the automatic filter cleaning operation reaches a certain number of times, the automatic filtration-like cleaning operation is ended (785
). This can be done by retrying the bathtub body (
1) This is to prevent the bathroom from running out.

In addition, even though the cumulative time of blow operation has exceeded a certain period of time (for example, 1 hour), if the blow operation does not satisfy the automatic filtration-like cleaning conditions, (765N)
When the blowing operation that satisfies the automatic filtration-like cleaning conditions is started (800Y), the automatic filter cleaning operation is started (770).

Next, the filter cleaning operation will be explained with reference to the subroutine shown in FIG. 31.

[Filter cleaning operation]

The filter cleaning operation is different from the automatic filtration-like cleaning operation,
After turning on the operation switch (100) or (60), the filter cleaning switch (117) can be turned on before or after starting the blowing operation, or even during the blowing operation, to give priority to the blowing operation. It is something that can be done.

First, turn on the filter cleaning switch (117) (
905Y), filter cleaning operation has started 910), circulation pump (P) detected by pressure detection sensor (48)
If there is no abnormality in the discharge pressure and the temperature of the bath water in the bathtub body (1) detected by the bath water temperature detection sensor (T),
In other words, if the pressure and water temperature allow blow operation (91
5N), filter cleaning operation for a certain period of time (e.g. 5 minutes)
continues, and after a certain period of time has passed, the operation will be stopped (215
).

In addition, in the filter cleaning operation, the rotation speed of the circulation pump (P) is set to, for example, 3000 r, p, m, and each of the valve bodies for adjusting the jet amount of the foot side jet nozzle (2) and the back side jet nozzle (3) (22) is in a slightly open state, for example, 0.5 m+w backward from the fully closed position, and only the jet amount adjusting valve body (22) of the ventral jet nozzle (4) is in a fully closed state.

In addition, if there is an abnormality in the pressure and water temperature (915Y), the water temperature will be the lower limit temperature of the bath water temperature range that allows blow operation (for example,
Detects whether the temperature is lower than (5℃), and if it is lower than (9℃).
25Y), start anti-freezing operation 82 (+), and if the temperature is not low, that is, higher than the upper limit of the temperature range of the bath where blow operation is possible (for example, 50 degrees Celsius), stop the operation (925N) state (215).

Next, the antifreeze operation will be explained with reference to the subroutine shown in FIG. 32. □ [Anti-freeze operation] Anti-freeze operation is performed when the circulation pump (P) and bath water circulation flow path (D
) This is done to prevent the bath from freezing, and it takes priority over the blow operation, and during the blow operation, the bath temperature is lower than the lower limit of the temperature range that allows blow operation (e.g. 5℃). When the temperature drops too low, blowing operation is forcibly stopped and antifreeze operation is started.

First, the bath temperature in the bath circulation flow path (D) is detected by the bath water temperature detection sensor (T), and if the bath temperature is lower than the lower limit temperature (for example, 5°C) of the temperature range that allows blow operation ( 310Y), next, a pressure detection sensor (48) that also serves as a water level detection sensor detects the water level in the bathtub body (1).
Detected by
15Y), antifreeze operation is started (320).

In such antifreeze operation, the circulation pump (P) is rotated at low speed (for example, 1000 r, p) by inverter control.
, m) to circulate the bath water in the bath water circulation flow path (D).

At this time, the bath water temperature is lower than the lower limit temperature (for example, 5°C) of the temperature range that allows blow operation, or the temperature corresponding to the hysteresis provided in the bath water temperature detection sensor (T) is at the lower limit temperature of the same temperature range ( For example, if the temperature is lower (325N) than the temperature (2~3℃) and the water level of the bath water in the bathtub body (1) is at a level that allows blowing operation (330Y), the antifreeze operation will continue. . During the anti-freezing operation, the main operating operations in the operating procedure of the bubble generating bathtub will be further explained below.

(rV-2) Explanation of conditions for starting blow operation The blow operation in the operating procedure described above is to be started only when the water level and water temperature conditions of the bath water in the bathtub body (1) that have been set in advance are satisfied. There is.

In other words, the water level conditions are as shown in FIG.
4), and the water level is set based on the ventral jet nozzle (4).
Water level A is when the water level is higher than the upper end of the opening of the ventral jet nozzle (4), and water level B is when the water level is between the upper end of the opening of the ventral jet nozzle (4) and the upper end of the inlet (Im), and the water level is higher than the upper end of the opening of the ventral jet nozzle (4). If the water level is lower than the upper end, it is considered water level C, and the water level is water level A or B.
The blowing operation is started when the water level is C, and the blowing operation is not started when the water level is C.

Therefore, the ventral jet nozzle (115
), a "C" indicating low water temperature flashes every second.

In addition, if the bath temperature is higher than the lower limit temperature of the temperature range that allows blowing operation due to hot water, or higher than the lower limit temperature of the same temperature range plus the temperature for the hysteresis installed in the bath temperature detection sensor (T) If it does (325Y), the operation will be stopped (215).

[Margin below]

(4) Unless the upper end of the opening is submerged in water in the bath, the bath will not be ejected, thereby preventing the problem of the bath being ejected into the air.

In addition, the detection specifications for water levels A-B-C are as shown in Figure 34, and in consideration of the fact that the water surface of the bath water ripples when a bather enters and exits the bathtub, it is used as a water level detection sensor. By providing hysteresis in the output voltage of the pressure detection sensor (48) to prevent hunting from occurring, smooth control can be performed by the control unit (C) via the pressure detection sensor (48). .

In Figure 34, (Soc) is the threshold value from a water level lower than water level C to water level C, (Scb) is the threshold value from water level C to water level B, and (Sba) is the threshold value from water level B to water level A. The threshold value, (Sab) is the threshold value from water level A to water level B, (Sb
c) is a threshold value from water level B to water level C, and (Sco) is a threshold value from water level C to a lower water level side.

And the hysteresis is the threshold value (Soc) (Sc
o), between threshold values (Scb) (Sbc), and between threshold values (Sba) (Sab).

In addition, the water temperature conditions are set based on the water temperature, for example, 50°C, which takes into consideration the protection of bathers and synthetic resin piping, and the water temperature, which takes into consideration the freezing prevention of the bath in the circulation pump (P), for example, 5°C. When the water temperature is higher than 50℃, it is water mA, when the water temperature is between 5℃ and 50℃, it is water temperature B, and when the water temperature is 5℃.
The lower case is defined as water temperature C, and when the water temperature is B, the blowing operation is activated, and when the water temperature is A or C, the blowing operation is not activated.

Furthermore, if the water temperature changes from water temperature B to water temperature A or C during blowing operation, the blowing operation is stopped.

In this case, even if water temperature A is returned to water temperature B using water, etc., the blow operation will remain in a stopped state, and by turning on the operation switch again, the stoppage can be canceled due to a rise in water temperature. The aim is to ensure reliable and safe operation.

At this time, on the clock display section (115) of the operation panel section (6), the rHJ display indicating high water temperature using a light emitting diode will flash every second for 15 seconds, and a buzzer will sound to warn you. ing.

In addition, the detection specifications for water temperatures A-B-C are as shown in Fig. 35, and in consideration of the fact that the water surface of the bath water ripples when a bather enters and exits the bathtub, the bath temperature detection sensor ( T)
Hysteresis is provided in the resistance value to prevent hunting, thereby allowing smooth control by the control unit (C) via the bath water temperature detection sensor (T).

In Figure 35, (S'oc) is the threshold value from a temperature lower than water temperature C to water temperature C, and (S' cb) is the threshold value from water temperature C to water temperature B.
(S'ba) is the threshold from water temperature B to water temperature A, (S'ab) is the threshold from water temperature A to water MB, (S'be) is the threshold from water temperature B to water temperature threshold to C, (S
'co) is a threshold value from the water temperature C to a lower temperature side.

And the hysteresis is the threshold value (Sco) (Sc
o), between threshold values (Scb) (Sbc), and between threshold values (Sba) (Sab).

(IV-3) Description of state transition of jet flow state The state transition of jet flow form in the above-mentioned operating procedure is as shown in Table 2.

In Table 2, the operation stop status and each jet flow type are listed vertically, and each status number is listed on the corresponding right side, and the operation switches (operation switch, mild switch, shiatsu blow switch, pulse blow switch, wave blow switch, cycle blow switch, program blow switch) and operation panel section (6)
Indicators displayed by light emitting diodes (mild blow indicator, acupressure blow indicator, pulse blow indicator, wave blow indicator, cycle blow indicator,
program blow display section, selection pattern ABC display section) are listed.

In Table 2, by turning on each operation switch, the jet flow becomes ONL from the jet flow form before turning on.

This shows that the flow transitions to a jet flow form.

In addition, in the case of pulse blow, wave blow, cycle blow, and program blow that have selection patterns A-B and C as sub-modes, newly changed sub-modes are always in the preset order between jet flow forms of the same type. , for example, in the order of frequency of use (in this example, A-
84C-A).

In addition, between different types of jet flow types, be sure to set submodes in advance, such as frequently used submodes (
In this embodiment, the transition is made to A).

Specifically, referring to Table 2, when the operation switch (100) is turned on, the operation is stopped (status number "0").
”) to a mild blow (state number “1”).

From this mild blow state, the pulse blow switch (
63) When (103) is turned ON, the state changes to pulse blow A (state number r3AJ).

From this state of pulse blow A, press the acupressure blow switch (
82) If (102) is turned on, the state changes to acupressure blow (state number "2").

In addition, in order to transition from the state of pulse blow A to the same type of jet flow form, pulse blow switches (63) (103) are used.
When turned ON, the state changes to pulse blow B (state number r3BJ).

In addition, wave blow switches (65) (104) are used to transition from the state of pulse blow A to a different type of jet flow.
If you turn on, wave blow A (state number r4AJ)
and cycle plow switch (88) (
105), cycle blow A (state number r
5AJ) and also the program plow switch (
87) If you turn on (10B), program blow A (
Transition to state number r6AJ).

In this way, since the jet flow is set to be a mild blow at the start of operation, even if the bather is a child or the elderly, there is no risk of the bather getting stuck in the gushing bath water and falling. It is also possible to prevent problems such as giving discomfort to the bather due to the excessive strength of the bath water that is ejected.

Further, since the sub-modes of the jet flow type always change in a preset order, the transition pattern of the sub-modes is easy for the bather to understand and easy to operate.

Furthermore, in Table 2, "ON" indicates that the display section of the operating jet type lights up; for example, in the case of pulse blow A, the pulse blow display section (188) and the selected pattern display light up. The letters rAJ are lit in the section (142).

In addition, in the case of program blow A-B-C, a program blow display section (141) and a selected pattern display section (145
) lights up, and the mild blow display section (13B)
, an acupressure blow display section (137), a pulse blow display section (138), and a wave blow display section (139) are made to blink. In Table 2, "-" indicates no change, and "." indicates OFF state.

In the state transition of the jet flow form described above, 1. The strength level of the jet flow is not changed even if the jet flow form is changed.

In this way, it is possible to maintain the perceived strength level of the jet flow form before the change, so there is no need to change the strength level, and it is possible to avoid causing discomfort to the bather when changing the jet flow shape. can do. Further, the strength level may be changed to a medium level as the jet form is changed.

Furthermore, the jetting position in the bathhouse is designed not to change even if the jetting form is changed.

In this way, it is possible to maintain the spout position of the bath in the jet flow form before the change, so there is no need to perform an operation to change the bath jet position, and bathers do not feel uncomfortable when changing the jet flow form. You can do it like this.

In addition, when changing the spouting position of the bath water, all the jetting nozzles (2), (3), and (4) are opened to allow the user to experience the changed jetting form with their whole body, and then It is also possible to change the bath jet position to a desired one that is compatible with the jet flow form.

[Margin below]

(IV-4) Explanation of the operation for changing the bath water spout position (IV-1
) The operation for changing the spouting position of bath water in the operating procedure based on the flowchart will be described with reference to the explanatory diagram shown in FIG. 36.

In this embodiment, the spout position of the bath water can be changed so that the jet is applied to the whole body, or can be changed so that the jet is applied only to a part of the body, depending on the bather's preference. That's what I do.

In other words, the hot water is spouted from six nozzles (2) (2) (2) (3) (3) (4) (4) on the foot side, dorsal side, and ventral side at the same time. (950) is set as the initial state.

Then, from the long-hole operation (950) where all of the ON/OFF type pattern switches for the foot, dorsal, and ventral jet nozzles are ON, which repeats ON/OFF operation, by pressing any switch to turn OFF. (951) (952
) (953), four-hole operation (955) (95B) (957) with two jet nozzles deactivated can be performed.

In addition, by pressing the OFF switch of the foot, dorsal, and ventral jet nozzle pattern switches (951), (952), and (953), four-hole operation (95
5) Long hole operation (950) from (95B> (957))
It can be restored.

In addition, from the four-hole operation (955) (95B) (957), by pressing the ON switch of the pattern switch for the foot side, dorsal side, and ventral side jet nozzle to turn it OFF (
980) to (965), two-man operation with two jet nozzles deactivated (987) (968) (969
) can also be used.

In addition, by pressing the OFF switch of the foot, dorsal, and ventral jet nozzle pattern switches (960) to (965), the three major operations (967) (9
68) Four-hole operation from (969) (955) (956)
(957) can be returned.

In addition, Table 3 shows the state transition of the above-mentioned bathhouse spouting position. , betrayal,
In addition to listing the dorsoventral foot), each state number is listed on the corresponding right side, and the operation switches (driving switch, dorsal switch, ventral switch, foot switch) and operation panel section (6) are listed laterally. A light emitting diode lights up the
The indicator lamps that are lit (dorsal, ventral, and foot indicator lamps) are listed.

To explain specifically with reference to Table 3, the operation switch (
100), the foot side/ventral side jet nozzle (2) (2) (3) (3) will be activated from the operation stop (status number "0").
(4) A large hole operation (950) (state number rl 11J) occurs in which bath water is ejected simultaneously from the six in (4), and from the same state, the pattern switch for the back side ejection nozzle (7
When 4) or (111) is pressed to turn it off, a transition is made to the four-hole operation (955) of foot side and ventral side jet nozzles (3) (3) (4) (4), and the state number becomes rollJ.

Further, in the four-hole operation (state number ro11J), the foot side indicator lamp (l12a) and ventral side indicator lamp (l13a) are lit.

In this way, when starting operation, the initial setting is set to long hole operation,
By turning the foot, dorsal, and ventral jet nozzle usage patterns on and off from the same large-hole operation, you can easily change to four-hole operation, or two-person operation, or from two-person operation to four-hole operation or large-hole operation. This makes it easy to make changes. In Table 3, "-" indicates no change, and "." indicates OFF state.

Furthermore, in the above-described state transition of the bath water spout position, the strength level does not change even if the bath water spout position is changed unless the blowing operation is stopped.

In this way, the strength level of the bath water spout position before the change can be maintained, so there is no need to change the strength level, and the bather does not feel uncomfortable when changing the bath water spout position. You can choose not to give it.

[Margin below]

(Explanation of state transition of strength level in rV-53 blow operation (IV-1) The strength level in the operating procedure based on the flowchart is "strong", "midway", "medium", "medium-weak", "weak" for each jet form. '', and the strength is set to be different depending on the content of each jet form.Even if the intensity level is the same as ``medium'', the jet strength will differ depending on the jet form. It is.

The state transitions of such strength levels are shown in Table 4.

In Table 4, the operation stop state, five strength levels (strong, middle, medium, medium-weak, and weak) and program blows A-B-C are listed vertically, and each state number is listed with the corresponding right The operation switches (operation switch, forced hot water jetting switch, hot water jetting station side switch) are listed next to each other, and the strength level indicator lamp (high level indicator lamp) is displayed by a light emitting diode on the operation panel section (6). , mid-level indicator lamp, mid-level indicator lamp, medium-low level indicator lamp, and low-level indicator lamp).

The strength level is set by the hot water jet force switch (68).
Or press and release (107) to increase the strength by one step, or switch (69) on the hot water spout station side.
Alternatively, when you press and release (108), the strength changes by one level.

For example, if you turn on the operation switch (100), the operation will transition from the stopped state (state number "0") to the "medium" strength level (state number "3"), and the hot water will gush out from the "medium" strength level. When you press and release the force switch (68) or (1 (17)), the strength level changes to "in the middle" (state number "4"), and when you press and release the same switch (68) or (107) again, the strength level changes to 1. The state transitions to "Strong" (state number "5").

In addition, from the strength level "medium", the switch on the bathhouse side (6
When you press and release 9) or (10g), the strength level changes to "medium/weak" (state number "2"), and the same switch (69)
Or press and release (108) again to set the strength level to 1.
"Weak" (state number "1").

In addition, in program blow A-B-C, since the intensity level is programmed in advance, the blow bath strong/local side switch (es) (89) or (107) (1
Even if you operate 08), you cannot change the strength level.

Further, in Table 4, roNJ indicates that the operating strength level indicator lamp is lit.

Further, rONloFFJ indicates that the strength level display lamp blinks when program blow ABC, whose strength level cannot be changed, is operating. Further, "-" indicates no change, and "." indicates an OFF state.

In this way, since the strength level is set to "medium" at the start of the blow operation, the bather will not feel uncomfortable due to the excessive strength of the jet bath, and
Even when the bather is a child or an elderly person, it is possible to prevent problems such as the bather getting stuck in the gushing bath and falling down.

In addition, since the strength level changes one step at a time when increasing or decreasing, it is possible to prevent sudden changes in the bather's sensation, and also prevent sudden increases in water pressure in piping etc. This prevents damage to piping caused by water hammer, etc.

[Margin below]

(IV-6) Explanation of priority order of main operational specifications
Table 5 shows the priority order of the main operation specifications in the operation procedure based on the flowchart of No. 1 (IV-1).

Table 5 In this way, safety is ensured by giving top priority to stopping when the temperature is high, and by setting priorities for other operations, we aim to protect bathers and the three component parts. , performs optimal control to ensure efficient operation.

(IV-7) Control timing of opening/closing operation of the valve body for adjusting the jetting amount and changing the rotation speed of the circulation pump Opening/closing ν movements of the foot side, dorsal side, and ventral side jet nozzles (2) (3) (4), The control timing for changing the rotation speed of the circulation pump (P) is as shown in Tables 6 and 7 below.

[Margin below]

As shown in Table 6, when changing the jet flow form, if it is necessary to increase the rotation speed of the circulation pump (P), each jet nozzle (2
) Prioritize the opening/closing operations of (3) and (4), and if it is necessary to lower the rotation speed of the circulation pump (P), prioritize the opening/closing operations of each jet nozzle (2), (3), and (4). Also, priority is given to changing the rotation speed of the circulation pump (P).

In addition, as shown in Table 7, when changing the number of jets, when reducing the number of jets, each jet nozzle (2) (3) (
Priority is given to lowering the rotation speed of the circulation pump (P) over the valve closing operation in 4), and when increasing the number of jets, each jet nozzle (P) is prioritized over changing the rotation speed of the circulation pump (P). 2) Prioritize the valve opening operations in (3) and (4).

In this way, when changing the jet form or the number of jets, the opening and closing operations of each jet nozzle (2), (3), and (4),
By differentiating the control timing from the change in the rotational speed of the circulation pump (P), it is possible to prevent bathers from feeling uncomfortable due to changes in the jet flow strength, and also to reduce the discharge pressure of the circulation pump (P). It is possible to prevent damage to piping caused by water hammer, etc. by preventing sudden changes in the temperature.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a bubble-generating bathtub according to the present invention. FIG. 2 is a plan view of the bubble-generating bathtub. FIG. 3 is an explanatory diagram of the conceptual structure of the bubble-generating bathtub. FIG. 3a is a cross-sectional explanatory diagram of the pressure detection sensor. FIG. 3b is an explanatory diagram showing the configuration of the pressure detection sensor. FIG. 3C is a graph showing the relationship between the output of the pressure detection sensor and the bath water level control operation. FIG. 4 is an explanatory diagram of the intake pipe. FIG. 5 is an enlarged sectional view of the jet nozzle. FIG. 6 is a rear view of the jet nozzle. FIG. 7 is a sectional view taken along the line 1-1 in FIG. 5. FIG. 8 is an enlarged sectional view of the motor for opening and closing the nozzle valve body. FIG. 9 is an enlarged sectional view of the air intake section. FIG. 10 is a sectional view taken along the line ■-■ in FIG. 9. FIG. 11 is a partially cutaway front view of the pump drive motor and circulation pump. FIG. 12 is a sectional view of the filter. FIG. 13 is a plan view of the operation panel section. FIG. 14 is a plan view of the remote controller. FIG. 15 is a side view of the remote controller. FIG. 16a and FIG. 16b are explanatory diagrams of the jetting amount vs. jetting pressure characteristic. Figures 17a and 17b are explanatory diagrams of jet nozzle characteristics. FIG. 18 is an operation timing chart of each jet nozzle and circulation pump during mild blowing. FIG. 19 is an operation timing chart of each jet nozzle and circulation pump in child safety blow. FIG. 20 is an operation timing chart of each jet nozzle and circulation pump in acupressure blowing. FIG. 21 is an operation timing chart of each jet nozzle and circulation pump during pulse blowing. FIG. 22 is an operation timing chart of each jet nozzle and circulation pump in wave blow A. FIG. 23 is an operation timing chart of each jet nozzle and circulation pump in wave blow B. FIG. 24 is an operation timing chart of each jet nozzle and circulation pump in wave blow C. FIG. 25 is an operation timing chart of each jet nozzle and circulation pump in cycle blow AB. FIG. 26 is an operation timing chart of each jet nozzle and circulation pump in cycle blow C. 27 to 32 are flowcharts of the operation of the bubble generating bathtub. FIG. 33 is an explanatory diagram of the water level detection reference position. FIG. 34 is an explanatory diagram of water level detection specifications. FIG. 35 is an explanatory diagram of water temperature detection specifications. FIG. 36 is an explanatory diagram of changing the bath temperature jetting position. (^): Bubble generating bathtub (P): Circulation pump (C) 2nd control part (I): Bathtub body (2): Foot side spout nozzle (3): Dorsal side spout nozzle (4): Ventral side spout nozzle ( 10): Bath water suction pipe (11): Bath water inlet pipe Patent applicant: Totoki Co., Ltd. Representative: Ken Matsuo - Figure 2, Figure 3a, Figure 3c + Temple j4-Gen 77-v- Figure 1 of 21
Fig. 17a Fig. 16b Fig. 17b "'! Gives practice. Fig. 19 (Namildose〉7day-70-4 Fuimi〉Kunait) Fig. 20 (11 yuan) "Worker Fuimin 1 move [-t] No. 30 Figure 81 Figure 34 Figure 35

Claims (1)

[Claims] 1) A bath water circulation channel consisting of a bath water suction channel and a bath water forced flow channel is interposed between the bathtub body and a circulation pump installed outside the bathtub body. , multiple ends of the forced bath water flow path are opened into the bathtub body, and an air intake part is connected to the forced bath water flow path so that bath water mixed with air bubbles can be spouted into the bathroom body. In the bubble generating bathtub configured, a water level detection sensor is disposed in the bath water forced flow path, and the water level of the bath water in the bathtub body is controlled based on the detected value of the sensor via the control section, and , by setting hysteresis between the output of the sensor and the bath water level control operation of the control unit,
A bubble-generating bathtub characterized by enabling stable water level control.