JPH02252456A - Bubbling bath tab with controlled ejection of bath water - Google Patents

Abstract

PURPOSE:To enable a change among various jet stream types to be obtained selectively by making both openings of ejecting nozzles and a number of revolution of a circulation pump controllable through a control device. CONSTITUTION:A control panel 6 is arranged nearby a main bath tab body 1 and an operation of a bubbling bath tab A is carried out with this panel. Both openings of foot-side, back-side and belly-side nozzles 2, 3 and 4, whose ejection volume are automatically controllable, and a number of revolution of a circulation pump P are made controllable through a control device C, and various jet stream types, i.e., mild blow, finger-pressure blow, pulse blow, cycle blow and program blow, are made changeable. A stream strength of each jet stream type is changed by controlling the number of revolution of the circulation pump P and a selection among various ejection positions is further made possible. It is possible, therefore, to get a massaging effect due to a jet stream sufficiently by striking a stream of a desired strength to a desired position of a bather's own body by himself.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a bubble-generating bathtub that controls the spouting of bath water.

(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 vibrator and a bath water blast vibrator is interposed between the bathtub body and a circulation pump installed outside the bathtub body. However, there are some types of bathtub vibrators that have an air intake part in the middle.

With this configuration, the circulation pump sucks the bathwater in the bathtub body through the bathwater suction vibrator, and the circulation pump causes the bathwater to pass through the bathwater bullet feeding vibrator and squirt 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.

In addition, the bubble-generating bathtub having the above-mentioned basic configuration is equipped with a control valve that adjusts the amount of air intake in the middle part of the air intake pipe connected to the air intake section, and the control valve adjusts the amount of air intake. By adjusting the jet pressure of the bubble-mixed bath water, you can enjoy a jet stream with a desired jet pressure.

However, Japanese Patent Application Laid-Open No. 83-3881 describes fine bubbles and
A bubble-generating bathtub is described in which fine bubbles can be selectively or mixed with ordinary bubbles having a larger bubble diameter and ejected together with bath water, so that not only healthy people but also elderly and sick people can take a bath.

(c) Problems to be Solved by the Invention However, the bubble-generating bathtub described in JP-A-59-135058 can only change the ejection pressure of bath water by adjusting the amount of intake air; JP-A-83-3
The bubble-generating bathtub described in Japanese Patent No. 881 can only select the state in which fine bubbles and normal bubbles are ejected.

In this way, both of them can only take a single jet form of bath water, and it is not possible to obtain changes in the jet form of many types of bath water.

Furthermore, since it is not possible to select the location of the jet stream, it is not possible to apply the jet stream to a desired location on the bather's body.

Furthermore, since the jet flow location cannot be changed at regular intervals, the bather's body is stimulated by the jet flow from a fixed direction, which reduces the acupressure effect of the jet flow.

(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 plurality of ends of the bath water forced flow passage are opened into the bathtub body to form a jetting nozzle, and an air intake part is connected to the forced bath water passage to communicate with the bath water forced passage. In a bubble-generating bathtub configured to be able to spray bubble-mixed bath water from a nozzle into the bathtub body, the amount of opening and closing of the above-mentioned spray nozzle and the rotation speed of the circulation pump can be controlled via a control unit, and (1) To provide a bubble-generating bathtub that controls the spouting of bath water so that various jetting locations can be selected.

Another feature of the various jet forms described above is that the jet strength can be varied by controlling the rotational speed of the circulation pump.

In addition, the control unit controls the opening/closing amount of the spout nozzle and the rotation speed of the circulation pump, so that ■ Mild blow where the amount of hot water spouted from the spout nozzle is large and the spout pressure is low; Shiatsu blowing, which has a small amount of hot water spewed out and high jetting pressure; ■ Pulse blowing, which periodically opens and closes the jetting nozzle to alternately spout and stop bathing water. The rotation speed of the circulation pump is changed periodically. Another feature is that various types of jet flow can be adopted, such as a wave blow that periodically changes the amount of hot water jetted out.

Another feature of the various jet forms described above is that by opening and closing each jet nozzle at regular intervals, it is possible to perform cycle blowing in which the jet location is changed at regular intervals.

In addition, in the various jet forms described above, by controlling the opening/closing amount of each jet nozzle and the rotation speed of the circulation pump, the jet form, jet strength, and jet location can be arbitrarily combined or selected according to a preset program. Another feature is that it is possible to perform programmed blows that vary the jet stream by changing it over time.

(e) Effect According to the present invention, the following effects are produced.

(2) By controlling the opening/closing amount of the jet nozzle and the rotation speed of the circulation pump, the control unit can automatically change various jet forms and select various jet locations.

For example, there is a mild blow in which a large amount of bath water is spouted from the spout nozzle and a low jet pressure, a shiatsu blow in which a small amount of hot water is spouted from the spout nozzle and a high jet pressure, and a shiatsu blow in which the spout nozzle is periodically opened and closed. , at least two of the following: pulse blowing, which alternately spouts and stops bath water; and wave blowing, which periodically changes the strength of the bath water jetting pressure by periodically changing the rotation speed of the circulation pump. The shape can be changed, and it can fully accommodate a wide variety of bathers' preferences.

■Since the jet strength can be changed in various jet forms, bathers can select their preferred jet strength and enjoy a comfortable and satisfying bath.

■Since various jet points can be selected, the bather can apply the jet to desired parts of his/her body.
It is possible to fully obtain the pine surge effect caused by the jet stream.

■Since it is possible to perform cycle blowing that changes the location of the jet at regular intervals, it is possible to prevent the bather's body from becoming irritated by the jet from a fixed direction, and to enjoy the change in the location of the jet. be able to.

■The jet form, jet strength, and jet location can be arbitrarily combined or changed over time according to a preset program, making it possible to perform program blows with diversified jet changes. You can enjoy the changes in the strength and location of the jet, and also enjoy the unexpectedness of the changes.

(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 the bubble-generating bathtub [nl Explanation of the configuration of each part [n-1] Explanation of the configuration of the jet nozzle [11-2]
Explanation of the configuration of the air intake section (II-3) Explanation of the circulation pump [11-4] Explanation of the filter [■-5] Explanation of the control section (II-6) Explanation of the operation panel section (II-7) Remote Controller description [ML jet flow form description (m-13 mild blow Cm-2) Shiatsu blow (m-3) Pulse blow Cm-43 wave blow (m-5) Cycle blow (III-6) Program blow [IV] Explanation of the operation of the bubble generating bathtub (IV-1) Explanation of the operation procedure based on the flowchart (IV-2) Explanation of the conditions for starting the blow operation (mV-3)
Explanation of the state transition of the three jet forms (IV-4) Explanation of the state transition of the bath water spout position (IV-5) Explanation of the state transition of the strength level in blow operation (IV-6) Explanation (IV-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] [1] Overall description of the bubble-generating bathtub First, the explanation of the bubble-generating bathtub according to the present invention will be explained. The overall configuration will be explained.

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

The bathtub body (1) has a flange-shaped edge (la) of a constant width formed on the periphery, and an air intake portion (5) on the edge (1a).
), and four vertically long parts (lb) in a cross-sectional V-shape are formed approximately in the center of the left and right side walls, and the same portal part (1b) (
lb) sloped surface (1'b) on the side facing the rear wall (dorsal side) (
1°b), the ventral side jet nozzle (4) (4) is 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 bath water reaches the ventral side, chest side, and other parts of the human body. I am trying to make it possible to apply it to.

In addition, a pump protective case (9) is arranged outside the bubble generating bathtub (^), and inside the case (9),
A circulation pump (P) that circulates bath water 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 (M) that controls the driving of the same motor (M), a motor (Ml) for opening/closing the nozzle valve body, a motor (Ml) for opening/closing the valve body for adjusting the amount of air bubbles, and an electric three-way valve (45), which will be described later. C).

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

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

The bath suction vibrator (10) is connected to the bathtub body (1).
Connect one end to the inlet (l■) opened at the bottom of the
The other end of the circulation pump (P) is connected to the water intake port of the circulation pump (P) so that bath water is sucked into the same circulation pump (P), while the bath water bullet feed vibrator (11) has one end connected to the water outlet of the circulation pump (P). The other ends are connected to the jet nozzles (2>(3) and (4)), respectively.

Moreover, the above-mentioned suction port (1 m) 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 spout pressure of the bath water spouted from the pump drive motor (M) and the 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).

By using such a water level detection sensor,
When the water level of the bath water does not reach a certain level, the control unit (C) is configured not to start the blow operation, antifreeze operation, filter cleaning operation, and automatic filtration-like cleaning operation, which will be described later.

In addition, as shown in Fig. 3, a bath water temperature detection sensor (T) is installed in the middle of the bath water bullet conveying vibrator (11) to detect the temperature of the bath water being pumped through the pipe (11). After installation, the detection results from the sensor (T) are sent to the control unit (C), which controls the pump drive motor (M) and each jet nozzle (2), (3), and (4). That's what I do.

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. This prevents the cleaning operation from starting.

In this way, the blow operation, antifreeze operation, filter cleaning operation, and automatic filtration-like cleaning operation, which will be described later by the control unit (C), are started when the bath water does not reach a certain water level and water temperature. I'm trying not to.

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 midway. (2) (3
) (4) Branch vibe (12a) (12b)
(12c) and each branch vibe (12a) (1
2b) Connect the tip of (12c) to each jet nozzle (2
) (3) It is connected to (4).

Then, using the negative pressure generated when the bath water is spouted from each spout nozzle (2), (3), and (4), the air taken in from the air intake part (5) is transferred to each branch vibe ( 12a) (12b) (12c) and inhale into each jet nozzle (2), (3), and (4), and from each jet nozzle (2), (3), and (4) into the bathtub body (1). 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) allows the bubble-generating bathtub ( ) can be operated.

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

(aob) is an infrared receiving sensor provided on the operation panel section (6), and is connected to the remote controller (30, which will be described later).
It receives infrared rays emitted from.

(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 that the jet nozzles (2) (3) (4) on the foot side, dorsal side, and ventral side are automatically variable in the amount of jetting.
) and the rotation speed of the circulation pump (P) are controlled by the control unit (
C) so as to be able to control each other through various jet flow types (mild blow, acupressure blow, pulse blow, wave blow, cycle blow, and program blow) to be described in detail later. , it is possible to sufficiently respond to the wide variety of preferences of bathers, and the strength of the jet flow can be changed by controlling the rotation speed of the circulation pump (P) in various jet flow forms. To enable a bather to apply a jet of desired intensity to a desired part of his/her body by allowing the bather to select various jet points, and to fully obtain the pine surge effect of the jet. The reason is that we have made it possible to do this.

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]

[Explanation of the configuration of part 11b (n-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 forming part (50) which forms a jet of bath water flowing in from the bath water bullet feeding vibe (11) into the nozzle casing (20), an air intake part (5) and an air intake, which are connected to each other and are connected to each other. An air mixing part (70) communicates with each other via a pipe (12) and mixes air into the bathwater spouted from the jet flow forming part (50), and the air mixing part (70) communicates with the inside of the bathtub body (1). It is composed of a throat part (60) that determines the spouting direction of the bath water mixed with bubbles spouted toward.

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.

(1h) is a ring-shaped gasket (11) fitted around the periphery of the leg side jet nozzle connection port (Ig).
h) Ring-shaped female screw part (li) attached to the rear surface (2
0a) is an outer peripheral male screw portion formed on the outer circumferential surface of the front end of the nozzle casing (20), and (20c) is a bullet feed pipe connecting portion that connects the hot water bullet feed pipe (11) in a detachable manner.

(n) indicates the bath water inflow direction.

In addition, (2B) covers the front end of the nozzle casing (20) and the ring-shaped female screw part (ll) 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.
An acid threaded portion (2Ba) is formed on the outer peripheral surface, and a spaced threaded portion (2Ba) is formed on the outer peripheral surface.
8a) 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 (2o).

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). There is. (24a) is a throat base whose outer peripheral surface is formed into a spherical shape, (25a) and (25b) are the inner peripheral surface and valve of a throat fixing member (25) to slidably support the throat base (24a). The throat support surfaces (24b) formed on the inner peripheral surface of the seat forming cylinder (2I) are as follows:
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 sliding resistance acts on the base (24a) of the throat (24) from the throat support surface (25a) (Hb), 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 (26) 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 (2o) through the front end opening, so that the rear end surface is located near the bullet-feeding 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 (2I) 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 path formed in an annular shape along the outer peripheral surface of the valve seat forming cylinder (2I), (21e) (21f), and the air inflow path ( 21d) on the intake pipe connecting part (20b) side and the connecting part (20b) in
), which are air inlets provided on the sides facing the air inlets (21e) and (21r), and communicate the inside of the valve seat forming cylinder (2I) with the intake vibe connecting part (2Qb) through the air inlets (21e) and (21r), The air mixing part (70) is located inside the valve seat forming cylinder (21)
) is formed. (-) indicates the air inflow direction.

In addition, the motor for opening and closing the nozzle valve body (Ml) has a cylindrical motor casing (23) removably attached to the rear wall forming plate (29), as shown in FIG. ), a cylindrical coil (23a) is provided coaxially with the nozzle casing (20), and the coil (
A cylindrical magnet (23b) is disposed inside the coil (23a), and by exciting the coil (23a), the magnet (23b) can be rotated in forward and reverse directions.
) A cylindrical rotor nut (23c) is installed concentrically and integrally within the rotor nut (23c), and the rotor nut (23e) is rotatably supported by a bearing (23e). A valve body support rod (23d) with a valve body (22) attached thereto is inserted through the valve body so as to be slidable 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 (23s) is formed, and a plurality of balls (23n) are rotatably interposed between the opposing rotor nut side ball groove (23k) and rod side ball groove (23m). There is.

(23g) is a rotation regulating piece that prevents the valve body support rod (23d) from rotating with the rotor nut (23e).

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

The valve body reference position detection sensor (23f') detects the magnetic force between the reference position Hall element (231) and the reference position detection magnet (23j), which changes according to the movement of the valve body support rod (23d). The change is converted into an electrical change and sent to the control unit (C), and the reference position (for example, fully closed position) is
At the same time, the controller (C) calculates the number of pulses (rotation angle) from the reference position of the nozzle valve opening/closing motor (old). (23h) is the coil (23a) and the valve body reference position detection sensor (23f).
).

With this configuration, the motor for opening and closing the valve body for the nozzle (
Ml) is magnetized by energizing the coil (23a)
The rotor nut (23b) is rotated together with the rotor nut (23e), and the valve body support rod (23d) is moved forward and backward in conjunction with the rotation of the rotor nut (23b).
The spouting amount adjusting valve body (22) attached to the tip of the tub (3d) is brought into contact with and separating from the valve seat (21a), so that the spouting amount and jetting pressure of bath water into the bathtub body (1) can be adjusted. ing.

Moreover, the opening/closing amount of the ejection amount regulating valve body (22) is as follows:
The result of the reference position detected by the valve body reference position detection sensor (23f') is sent to the control unit (C), and the control unit (C) controls the energization of the coil (23a) based on the result. Appropriately open and close the ejection amount regulating valve body (22),
The amount and pressure of hot water sprayed into the bathtub body can be as small as 11 g+.

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 (2G). It is fitted and installed in a removable manner.

(20g) is the rear wall forming plate (29), and the rear wall forming plate regulating piece (21g) formed on the inner circumferential 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 the rear wall forming plate (
29) is a gasket provided on the circumferential surface.

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 other spout nozzles (3) and (4) are constructed in the same manner as the spout nozzle (2), so that the amount of hot water spouted and the hot water spout pressure can be adjusted. There is.

Further, the jet nozzles (2), (3), and (4) can be adjusted using an operation panel section (6) or a wireless remote controller (30), which will be described later.

Then, the six foot, dorsal, and ventral jet nozzles mentioned above (
2) The usage patterns of (3) and (4) will be explained later with reference to Figs. 13 and 14, but when using all six nozzles to eject bath water at the same time, it is necessary to use one of the ejection nozzles. There is a case where one or two types are selected and used, and each usage pattern can be selected by switching to the jet nozzle usage pattern on the operation panel section (6) or remote controller (3o). .

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

When the power is turned on (when the plug is inserted), ■ Set the nozzle valve element opening/closing operation motor (Ml) to the normal voltage (for example, 12V) 50 pps for 0.5 seconds, and the jet amount adjustment valve element (22) closes. Drive in the direction of operation.

■The motor for opening/closing the nozzle valve body (old) has been replaced with a low voltage (
For example, the injection amount side regulating valve body (22) is driven at 200 pps (4V) for 1.5 seconds in the direction in which the valve body (22) closes.

Then, at the completely closed position, the nozzle valve element opening/closing operation motor (Ml) is initialized by being out of step for a certain period of time (for example, 2 seconds).

■ Drive the motor (Ml) for opening and closing the nozzle valve body at a normal voltage (for example, 12V) at 200pps,
The jet m adjustment valve body (22) is moved back by 6 m11 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 nozzle valve body opening/closing operation motor (old).

a) By driving in the above (■), the oil deposits on the seal part are 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 jet M: # valve body (22
) can be brought into contact with the valve body (21a) with a relatively low suppressing 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 (22) for adjusting the ejection amount
The valve is in the open state with the valve set back 61111 degrees from the fully closed position, so that bath water can be smoothly supplied and drained when filling with hot water or draining water.

In addition, at the start of blow operation, which will be described later, by having the nozzle valve body opening/closing motor (old) perform the drive described in ■■ above, it is possible to smoothly perform a mild blow as the initial setting blow. There is.

(n-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 main body (80) and an air intake (J1) on the outside.
2a), a lid (82) that covers the top opening of the air intake main body (80), and an intake vibe connecting part (83) that is communicatively connected to the center of the bottom surface of the air intake main body (80);
A communication path (8B) is provided in the intake vibe connection part (83) and connects the intake pipe connection part (83) and the air intake part main body (80).
) and an air bubble control valve (87) that opens and closes the air bubble m.

One end of the intake vibrator (12) (12) is connected to the front and rear walls of the intake pipe connecting portion (83) so that the air taken into the air intake portion main body (80) through the air intake port (82a) is communicated with the front and rear walls of the intake pipe connecting portion (83). , a certain amount of air bubbles is sent through the intake pipe connection part (83) to each intake vibe (12) (12) by the air bubble amount control valve (87),
) allows a certain amount of air to be supplied to each jet nozzle (2), (3), and (4). In Fig. 4, (84) is a beam actance type silencer, and (85) is a check valve, which prevents the bath water from flowing backward through the intake pipe (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 (8B)
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 (old), and can be controlled by a control unit (C) described later. However, in this embodiment, the motor (M2) is not driven during the blowing operation to adjust the amount of bubbles using the valve body (90), but instead the blowing operation is performed with a preset amount of bubbles. I have to.

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 (90) 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.

(n-3) Description of 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 vibe (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 filter (43), which will be described later, is connected to the bath water bullet feed pipe (11) via the bullet feed path (32b), and is connected to the filter (43) via a filtering bullet feed path (32c) provided on the negative side of the upper impeller chamber (33). ) is communicated with one end of the retractable vibe (41). (32e) is the water inlet, (32f') is the lower spout, (32g) is the upper spout, (zl) is the circulation flow direction,
(z2) indicates the filtration flow direction.

Then, the impeller shaft (35) is mounted so as to vertically pass through the central part of the upper and lower impeller chambers (33) (34), and the upper impeller (33) is mounted on the impeller shaft (35).
a) and the lower impeller (34a) were installed coaxially within the upper and lower impeller chambers (33) and (34), respectively, and the impeller shaft (35) was mounted on the pump casing (32) in an integral and watertight manner. Pump drive motor (M
) is interlocked with the drive shaft (39). (36) is
This is a sealing material attached to the impeller shaft (35) and ensures 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 retraction vibrator (41) and a return vibrator (42). , the upper water spout (32) of the upper impeller chamber (33)
g) through the retractable vibrator (41) connected to the
A portion of the bath water sucked into the lower impeller chamber (84) is sent to the filter (43), and the bath water filtered by the filter (43) is returned through the vibrator (42) and passed through the bath water blasting vibrator (43).
tB, and joins the bath water that is forced into the bath water bullet delivery pipe (11) from the lower spout (321') of the lower impeller chamber (34).

With this configuration, the upper and lower impellers (33a) (34
When a) is rotated, the hot water in the bathtub body (1) is sucked into the bathwater suction path (32a) of the lower impeller chamber (34) from the bathwater suction vibrator (1(+)) through the water suction port (32e). , the forced bath water passage (3) from the lower impeller room (34)
2b), the lower spout (33a), and further the bathtub body (11) into the bathtub body (1).

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 water spout (33a), the bath water is sent to the filter (43) through the retraction vibrator (41) and filtered, and the filtered bath water passes through the return vibrator (42) and is sent to the bath water blast vibrator (42).
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 portion of the bath water circulating through the bath is filtered by a filter (43).

In addition, a pump heater (Ill) to prevent freezing is installed around the outer circumference of the circulation pump (P), and the heater (old)
Bath water bullet feeding vibe (L) by bath water temperature detection sensor (T)
l) The bath water in the circulation pump (P) can be prevented from freezing by controlling the control unit (C) according to the temperature detection result of the bath water in the circulating pump (P).

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 (H) 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 that is supplied. In other words, the inverter (n) converts the power from the AC 100V power source into 20V.
It outputs a 0V, three-phase power supply.

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 the control. The amount, pressure, and time of the bath water spouted from each spout nozzle (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 the opening/closing operation of each jet nozzle (2), (3), and (4), the jet flow form can be adjusted to the bather's preference. Since it can be changed in various ways depending on the user's needs, it can fully accommodate the diverse tastes of bathers.

■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.

■ Along with the opening and closing operations of each jet nozzle (2), (3), and (4),
In order to smoothly change the rotation speed of the circulation pump (P) using the inverter (H), it is possible to change from one jet form to another, and even change the jet strength of various jet forms. These changes can be made smoothly and gently without causing any discomfort to the bather.

■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) ensures smooth gushing of bath water.

(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 bath water as in this example, the rotation speed of the circulation pump (P) is appropriately controlled by the inverter (E). As a result, unnecessary power can be saved, and power saving can be achieved.

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

(n-4) Description of filter The configuration of the filter will be explained below.

As shown in FIG. 12, the filter (43) has an acrylic mesh (43b) stretched over the lower part of the filter body (43a), and a filtration +4<43c) provided on the mesh (43b). , a baffle (4) is installed on the inner surface of the earthen wall of the filter body (43a).
It is constructed by taking 3d).

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
The bath water is filtered by connecting one end of the return pipe (42) to the lower end of a) and directing the bath water downward from the top of the filter body (43a) and passing through the filter material (43c). I'm trying to be able to do that.

In addition, a filter heater (+12) for anti-freezing is provided around the outer circumference of the filter (43), and the heater (1 (2')
The bath water bullet feeding vibe (
11) The bath water inside the filter (43) can be prevented from freezing by controlling the control unit (C) according to the temperature detection result of the bath water inside the filter.

In addition, an electric three-way valve (45) is provided in the middle of the lead-in pipe (41), and a drain pipe (46) is connected to one end of the electric three-way valve (45), and the electric three-way valve (45) The pipe (41) and the drainage 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 (4B) to the upper and lower impellers (33a) (94) of the circulation pump (P).
By rotating a), a part of the bath water is passed through the return pipe (42) from below to above the filter body (43a) and passes through the filter medium (43c). 43c) cleaning can be performed.

Moreover, the switching operation of the electric three-way valve (45) can be performed by a remote controller (30), which will be described later.

(n-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 (23f) 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 (5d).
1), a pressure detection sensor (48) that detects the water pressure in the bathtub body (11), a bathwater temperature detection sensor (T) that detects the temperature of the bathwater in the bathtub body (1), and an operation panel section. (6
) 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 (tie) 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 (old), motor for opening/closing valve body for adjusting air bubble volume (M2), pump heater (Il)
l), a filter bar heater (II 2 ), and an electric three-way valve (45) are connected. In addition, the pump drive motor (
M) is connected to an output interface (51) via an inverter (E).

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.

[1l-6) Description of the operation panel section The operation panel section (6) for manually transmitting the drive output to the control section (C) will be explained 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 (lot), Shiatsu blow switch (102), Pulse blow switch (103), Wave blow switch (104),
The cycle blow switch (105), the program blow switch (TOE), the bath water jet strong/local side sui/sochi (107) (10g), and the back spout nozzle usage pattern switch (which is a switch for switching the jet nozzle usage pattern) 111), a foot side jet nozzle usage pattern switch (112), a ventral side jet nozzle usage pattern switch (113), a timer switch (114), and a clock display section (115) that also serves as a timer time display section. ,
Bath water temperature display section (11B) and filter cleaning switch (11B)
1, 7), a time setting switch (118), an hour setting switch (119), and a minute setting switch (12) for correcting the time displayed on the clock display section (115).
0).

Then, by turning on the operation switch (10 ports), it is possible to start a blow operation to be described later.

In addition, (100a) turns on the operation switch (100).
L.

(Iota) (1
02a) (103a) (104a) (105a)
(108a) is each blow operation switch/sochi indicator lamp, (
109a) (109b) (109c) (109d)
(109e) is a strength level indicator lamp, (111a) (
112a) (113a) are foot side, dorsal side, and ventral side display lamps, respectively, and (121), (122), and (123) are respective selection patterns A-B- in pulse blow, wave blow, cycle blow, and program blow, which will be described later. The lamp (l17a) that displays C is a filtration type cleaning indicator lamp,
(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 sensor (30b) 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 Multi Frequency Tone Modulation System (MFTM), when infrared rays with a predetermined cycle corresponding to each switch are emitted from the infrared irradiation unit (30a) provided on the remote controller (30), The infrared rays are detected by the infrared receiving sensor (30b), and the detection signal is sent to 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
) can be opened and closed freely, and the opening/closing lid <125) allows the timer switch (114), clock display (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 sensor (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, improve aesthetics, and the like.

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

[, ll-7) Description of remote controller In the following, separately from the operation panel section (6) described above, a remote controller <30 >l: I will explain about it.

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, a shiatsu blow switch (62), and a pulse blow switch (63).
), wave blow switch (65), cycle blow switch (66) and program blow switch (67)
), the bath water spout strength/station side switch (68) (69),
It is equipped with a foot side jet nozzle usage pattern switch (74), a dorsal side jet nozzle usage pattern switch (75), and a ventral side jet nozzle usage pattern switch (76), which are switches for changing the jet nozzle usage pattern.

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

Further, the remote controller (3o) is equipped with an infrared ray irradiation section (Ha) at the front end, and a blow state display section (130) at the upper surface of the front section.

The blow state display section (130) allows the blow state to be visually recognized in order to improve the usability of the remote control roller (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 (131) is located on the right half of the blow state display section (130), with a mild blow display section (135), an acupressure blow display section (13B) and Pulse blow display section (137)
, a wave blow display section (138), a cycle blow display section (139), and a program blow display section (140).
), a pulse blow display section (137), a wave blow display section (13g), a cycle blow display section (1
39)', and the selected pattern A-B-C display section (137a) (1
38a) (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 ( 1!12) and the bath water spout position display section (13
3).

The wave blow display section (132) includes a thin wave blow display line (1) within the bathtub peripheral 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 bath water spout position display section (133) indicates the bathtub peripheral line (
A total of six display units (133) are provided at positions corresponding to the installation of the jet nozzles in each unit (144), and each display unit (133) is lit or flashed by a liquid crystal display, so that the usage status can be visually confirmed.

In addition, the strength level display section (134) is provided below the blow state display section (130) on the paper, and as described below, there are "strong", "strong medium", "medium", "medium weak", A strong indicator lamp (
134a), a strong medium indicator lamp (134b), a medium indicator lamp (134e), a medium weak indicator lamp (134d), and a weak indicator lamp (134e) are arranged horizontally in a line. The strength level display section (134) is also displayed using liquid crystal. In addition, the blow status display section (ta
O) The characters "strong" and "weak" in the text 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, O1 to 1), and can be operated by a bather while taking a bath.

With the above configuration, the bubble generating bathtub (
In A), the pump drive motor (M
), the motor for opening/closing the valve body for the nozzle (old), the motor for opening/closing the valve body for adjusting the amount of air bubbles (N2), and the electric three-way valve (45), etc., are driven via the control unit (C). The rotational speed of the circulation pump (P) controlled and driven by each drive device, the opening/closing amount and opening/closing speed of the jetting amount adjusting valve body (22) provided in each jetting nozzle (2) (3) (4), It is also possible to adjust the opening/closing amount and opening/closing speed of the air bubble amount regulating valve (5d) provided in the air intake part (5), and to switch and switch the electric three-way valve (45).

Then, by adjusting the rotation 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 jet volume of bath water spouted from each jet nozzle is adjusted. It is possible to set six types of jet modes (mild blow, shiatsu blow, pulse blow, wave blown cycle blow, and program blow) with differences in jet pressure and amount of air bubbles mixed in, and each jet type can be controlled by a remote controller ( 30) of the blow operation switch provided in
It is possible to select by N/OFF operation.

Moreover, for each jet flow type, by operating the bath water spout strong/open side switch (68) (69) 0N-OFF, the bath water spout can be adjusted to five levels (strong, strong medium, medium, medium weak, weak). It is possible to adjust the intensity level.

Furthermore, by operating the changeover switches (101) (102>-...) ON/OFF for each 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) The bath water can be spouted from all of (4) at the same time, and then each spout nozzle (2) (3) ( 4) Each spout nozzle usage pattern switch (74) (75) (7B) corresponding to spouting/stopping of bath water from ON-OF
This can be done using the F operation.

Furthermore, by turning the filter cleaning switch (77) ON-OFF, it is possible to start and stop filter cleaning in priority to blow operation, as will be described later.

[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.

(m-1) Mild Blow Mild blow is a type of jet flow in which the amount of hot water jetted from each jetting nozzle (2), (3), and (4) is large and the jetting pressure is low. Enveloping the whole
It gives the bather the sensation of a stimulating pine surge.

In other words, the mild blow is performed by each jet nozzle (2) (
3) Operate each jetting amount adjustment valve body (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 3000 r, p, m). Then, the discharge pressure of the pump (P) is set to several levels (for example, five levels) of strength within a constant low pressure range (for example, 0.2 to 0.5 kg/cj), and each jet is A large amount of bath water (for example, 40
~8ON/5in) can be ejected.

In addition, Fig. 16 shows an injection amount-injection pressure characteristic curve (Pl) (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>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 (Nl) (for example, 3000r, p, a+). (Yl) indicates the mild blow zone, and the point (bl) (b
2) shows a mild blow state set within the same mild zone (yi).

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, u
2. u3... is an ejection pressure line. However, the magnitude relationship of the ejection pressure is ul<u2<u3...

Further, point (b) in FIG. 16a can be represented as a point (bo) 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 (y) (
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), the set valve opening position (d2) is maintained at high speed (preferably maximum speed) for a certain period of time (t2) (for example, 1 second) from the valve opening position (dl) (valve opening position before changing the jet flow form). ) (for example, an open position that is six fins back 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 set valve opening operation ends (2) has elapsed, the rotation speed (vl) (for example, 2800 r, p, a) before changing the jet flow form is gradually decreased, and t'2) (for example, 3 seconds) at a constant number of revolutions (vl)
(For example, 240or, p, a+).

In addition, in this embodiment, the operation is started (operation switch (60)
) or (100) is turned ON), the blow operation starts.The blow operation is a mild blow with the above-mentioned jet flow form, taking into consideration the safety of children and the elderly when taking a bath. and the strength level is initially set to "medium" (hereinafter, such blow operation will be referred to as "child safety blow").

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 jet amount of the back jet nozzle (3) is fully closed until it reaches the closed position. This prevents the cold remaining water in the piping that was used last time from spouting out from the back spout nozzle (3), causing discomfort to the bather or causing danger to the bather. .

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 (t2) (for example, 1 second) is a high speed (preferably the maximum speed), and the valve is operated from the intermediate position (the valve open position before changing the jet flow form) to the fully closed position, and the valve is in the closed state. is maintained for a certain period of time (13) (for example, 2 seconds), and then maintained at a high speed (preferably maximum speed) for a certain period of time (14) (for example, 1 second) at the set valve opening position (d2).
(For example, the valve is operated to the open position which is 6IIl backwards from the fully closed position).

The valve bodies (22) for adjusting the jetting amount of the other foot side and ventral side jetting nozzles (2) (4) are closed when the mild plow switch is operated (
After a certain period of time (tl) (e.g., 1 second) has elapsed from t2 (e.g., 1 second), at a high speed (preferably maximum speed), the opening position (di) (before changing the jet flow form) is set. (valve open position) to approximately fully open position (d2) (for example,
The valve is operated to the open position, which is 6111 steps backward from the fully closed position.

The circulation pump (P) is operated by each ejection amount adjusting valve body (2
2) The time (t') at which the valve closing or set valve opening operation ends
Immediately after t) has passed, the rotation speed is gradually increased to a certain rotation speed (V2) within a certain period of time (t'2) (e.g. 10 seconds) (e.g. 2800r, p, san).
I am trying to make it so that

In addition, the mutual control timing of the opening/closing operation of the valve body (22) for controlling the ejection amount of each ejection nozzle (2), (3), and (4) and the rotation speed change 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-7).

Cm-2) Shiatsu Blow Shiatsu Blow is a jet style in which the amount of hot water jetted from each spout nozzle (2) (3) (4) is small and the jet pressure is high, and it applies force to a part of the bather's body. By applying the jet stream well, it gives the bather a stimulating massage sensation with acupressure sensation.

In other words, the acupressure blow is performed using each jet nozzle (2) (3) (
4) by slightly opening each of the valve bodies (22) for regulating the ejection amount, and keep the rotational speed of the circulation pump (P) within a certain range (for example, 200
0 to 3000r, p, ++), and the discharge pressure of the same pump (1') is set to a certain high pressure range (for example, 0.5 to 1.Okg/cd) in several steps ( For example, the strength level can be set in five stages.

In addition, the ejection amount-ejection pressure characteristic curve (R3) in Fig. 16a
The point (e) on the top is the one that minimizes the amount of hot water spouted out (for example, 3
The figure shows the state of the acupressure blow when it is set to ON/5in.

In addition, in FIG. 168, (R2) 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 (R2).

Further, point (e) in FIG. 16a can be represented as a point (eo) 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 ejection amount adjustment valve body (22) of (4) and the operation of the circulation pump (I).

That is, in FIG. 20, each ejection amount regulating valve body (22
) is a certain period of time (tL) (for example, 0 seconds) after operating the acupressure blow switch (to), a certain period of time 02)
(e.g. 1 second) is a high speed (preferably maximum speed),
Set valve opening position (d2) from the valve opening position (dl) before changing the jet flow form (for example, the valve opening position is 6 mm backward from the fully closed position) (for example, the valve opening position is 1.5 m + * backward from the fully closed position) The valve is operated to open until the position).

The circulation pump (P) then operates each jet f! Immediately after the time (t't) at which the valve opening operation ends, the rotation speed (vl) (for example, 240 Or, Lm) before changing the jet flow form is gradually increased. , a certain number of rotations (R) within a certain time (t's) (for example, 3 seconds)
2) (for example, 280Or, Il, 1m).

[II[-33 Pulse Blow Pulse blow has individual jet nozzles (2) (3) (4
) is opened and closed periodically to alternately eject and stop the bath water, 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 closed position alternately. Thereby, a state in which bath water is spouted and a state in which bath water is not spouted can be alternately generated. Note that when the bath water is ejected, 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 amount of hot water ejected within a certain range (for example, 30 to 5 ON/sin).
This can be done by setting it in several stages (for example, five stages).

Further, the above-mentioned pulse blow is activated by turning on the pulse blow switch (63) 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 of the injection amount adjusting valve bodies (22) and the operation of the circulation pump (P) in (4).

That is, in FIG. 21, each injection amount adjusting valve body (2
2) is when the pulse blow switch is operated (10), after a certain period of time (tl) (e.g. 0 seconds) has elapsed, the valve open position (di) before changing the jet flow form (e.g. 6 from the fully open position)
Valve opening position (d2) set from valve opening position (valve opening position moved back 11m)
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 reaches the open position (for example, the valve is moved back by 211I11 from the fully closed position), and the valve is kept in the open state for a certain period of time (t3). (for example, 1 second), then close the valve at high speed (preferably maximum speed) for a certain period of time (t4) (for example, 1 second) to the fully closed position, and then maintain the same fully open state for a certain period of time (t5). (for example, 1 second), the valve is opened at a high speed (preferably maximum speed) for a certain period of time (1B) (for example, 1 second) to the set valve opening position (d2), and then the valve is opened again. After the state is maintained for a certain period of time (17) (for example, 1 second), the opening and closing operation of the valve is periodically repeated.

Then, the circulation pump (P) operates for a certain period of time (t'l) (for example, 1
seconds), the rotation speed (vl) (for example, 240Or, p, n+) before changing the jet flow shape is gradually increased, and the rotation speed becomes constant within a certain period of time (t'2) (for example, 3 seconds). Rotation (V2) (e.g. 280Or, p, m)
! = I'm trying to do that.

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, -B and 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 bath water. By changing the pressure in slow cycles, we create a varied flow,
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) Turn on the operation of the circulation pump (P) by fully opening or fully opening each of the jetting amount adjusting valve bodies (22) in (4).
OFF or periodically change the rotation speed of the circulation pump (P) within a certain range (for example, within the range of 1600 to 3000 r, p, a+).

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.

Also, the (old) (d2) (d3) shown in Figure 16b is
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) (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 ejection 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) is when the wave blow switch is operated, after a certain period of time (11) (for example, 1 second) has elapsed since the wave blow switch operation (10), the valve open position (di) before changing the jet flow form (for example, 6 from the fully closed position)
Set valve open position (d2) from the valve open position moved back by mm
(For example, the valve is operated at a high speed (preferably the maximum speed) for a certain period of time (t2) (for example, 1 second) until the valve is opened to the valve open position, which is 4+!111 steps 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
0Or, p, s) for a certain period of time (t4
) (for example, 4 seconds) to a certain high rotation speed (■2) (for example, 3000r, p, m), and then gradually reduce the rotation speed to a certain time (t5) (for example, 4 seconds). The rotation speed is set at low rotation speed (V3) (for example, 1800r, p, s), and the rotation speed is gradually increased for a certain period of time (t6) (
For example, the rotation speed is changed periodically such that the above-mentioned high rotation speed (v2) is reached within 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 pattern explained below is wave blow B-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. rotation speed (vl) (for example, 240
0r, p, 11) for a certain period of time (t4)
(for example, 4 seconds), set a certain high rotation speed (V2) (for example, 3000r, p, Il), and set the same high rotation speed (■2
) 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.

1), and the same low rotation speed (v3) 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 ([3) for completing the set valve opening operation of each jet volume adjusting valve body (22) and before the jet flow form is changed. (rotational speed m) (for example, 2400r, p,
s) is gradually increased in a downward convex curve to maintain a constant high rotational speed (14) within a certain time (for example, 3 seconds).
V2) (For example, 3000r, p, m) After sonication, the rotation speed is adjusted for a certain period of time (t5) so as to draw a downward convex curve.
) (for example, 3 seconds) to a low rotation speed (V3) (for example, 1800 r, p, m), and then gradually increase the rotation speed in a downward convex curve for a certain period of time (t6) (
For example, the rotation speed is changed periodically such that the rotation speed is increased to the above-mentioned high rotation speed (v2) within 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), it is possible to generate wave blows A-B-C with pulsating strength in a fleeting, weak jet.

Among them, in Wave Blow C, the rotation speed of the circulation pump (P) changes in a nearly catenary curve, with a large rotation speed increase rate and rotation speed decrease rate near high rotation speeds, and a large rotation speed decrease rate near low rotation speeds. 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 .

(III-5) Cycle Blow Cycle blow allows you to enjoy the change in the position from which bath water is spouted by automatically and periodically changing the position from which bath water is spouted.

That is, the cycle blow is performed by, for example, blowing each jet amount adjusting valve for a certain period of time in the order of dorsal jet nozzle (3) (3) → ventral jet nozzle (4) (4) - foot jet nozzle (2) (2). The bath water is spouted by opening the body (22), and at this time, the form of the bath water 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, after 0 seconds), only the valve body (22) for adjusting the jetting amount of the dorsal jet nozzle (3) is moved back to the valve open position (dl) before changing the jet flow form (for example, 611 Im from the fully closed position). A certain time (t2) (for example, 1 second) from the set valve open position (d2) (for example, the valve open position retreated by 1.5 ms from the fully closed position) 1 indicates high speed (preferably maximum speed). ), and the other foot side jet nozzle (2) and ventral side jet nozzle (4)'s respective jet volume regulating valve bodies (22) are brought to the fully closed position for a certain period of time (t2) (for example, 1 second). The valve is operated at high speed (preferably maximum speed).

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 (ta) (e.g. 2 seconds), and then completely closed at a high speed (preferably maximum speed) for a certain period of time (t4> (e.g. 1 second)). The valve is operated until the valve is closed.

Subsequently, the valve body (22) for adjusting the jet amount of the ventral jet nozzle (4), which was in the closed state, is closed for a certain period of time (t5) (for example,
0 seconds), the set valve opening position (d2) is set at high speed (preferably maximum speed) for a certain period of time (t6) (for example, 1 second).
After holding the valve at the same set opening position (d2) for a certain period of time (17) (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, bath water in the form of acupressure blow is ejected only from the ventral side ejection nozzles (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 closed for a certain period of time (19) (for example,
0 seconds), the set valve opening position (d
2) and held at the same set valve opening position (d2) for a certain period of time (tll) (for example, 2 seconds), then the high speed (preferably 1 The valve is closed to the fully closed position at the maximum speed.

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

Subsequently, after a certain period of time (t13) (e.g. 0 sho) has elapsed, the ejection amount adjusting valve body (22) of the back side ejection nozzle (3) which was in the closed state is turned on for a certain period of time (114) (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 (t15) (for example, 2 seconds),
The valve is operated to close at a high speed (preferably maximum speed) to a fully closed position for a certain period of time (port 8) (for example, 1 second).

In addition, the circulation pump (P) operates for a certain period of time (t'l) (for example, 0) from when the cycle plow switch is operated (0).
seconds) after which the number of revolutions m) before changing the jet flow form (e.g. 2
800r, p, a+) for a certain period of time (t
'2) (for example, 1 second) with a certain number of revolutions (V2) (
For example, 2500v, p, 11) and the same rotation speed (v2
) is maintained during blow 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 valve body (22) for controlling the ejection amount of each ejection nozzle (2) (3) (4) The only difference is that the fixed time period (ta) (L7) (tll) for holding the valve open position (d2) is different (for example, 4 seconds).

In this way, in cycle blow A-B, 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 rate. Since the circulation pump (P) is opened and closed periodically and the rotational speed of the circulation pump (P) is kept constant, the ejection position of the acupressure blow changes.
Acupressure effects can be applied to all parts of the bather's body.

Furthermore, the cycle blow C takes the form of a wave blow, and as shown in the timing chart of FIG. For example, 41IIl
), and a certain period of time (ta) to hold the same set valve opening position (d2).
) (t7) (tll) is different from cycle blows A and B (for example, 8 seconds).

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

That is, the circulation pump (P) is rotated for a certain period of time (t'l) (for example, 0 seconds) after the cycle blow switch is operated (tO) and before changing the jet flow form (rotation speed m) (for example, 2400 r, p, m) is gradually decreased for a certain period of time (
t'2) (for example, 1 second) at a constant low rotational speed (v
3) (for example, 1BOOr, p, m), then gradually increase the rotation speed to a constant high rotation speed (v2) within a certain time (t'3) (for example, 4 seconds), and then The number of rotations is gradually decreased to a constant low rotational speed (v3) within a certain period of 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 (Ll→v2→V3) is repeated.

This change in rotation speed (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) (3)
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) From (3) and (4), bath water in the form of a wave blow is 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 embodiment, the bath water spouting positions of cycle blows A, B, and C were changed from dorsal side to ventral side, one foot side, one foot side,
It is not limited to this order in any way; other orders (for example,
The dorsal side, the foot side, the ventral side, and the front side) can also be taken. Also,
It is also possible to change the spouting position of the bath water irregularly.

[II[-63 Program blow Program blow is a method that diversifies jet flow changes by arbitrarily combining or changing over time the jet form, jet strength, and jet location according to a preset program. This allows you to 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.

[Margin below]

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

In addition, 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 strong and being medium, 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 spout position of the bath water are changed after a certain period of time (for example, 30 seconds) has passed, giving the bather 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 block C7-A-B-C can be set to have 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. It is set.

In addition, each program blow A-B-C has a number H
It is also possible to set up similar menus and, when any program blow is selected, to randomly select a menu from among the selected program blows.

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-13 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. .

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

Insert the plug for the control unit (C) etc. into the power supply and supply power (2
00).

All foot and dorsal φ ventral jet nozzles (2) (3) (4
) is 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)
Circulation pump (P) and each jet nozzle (2) (3) installed in
Various actuators such as (4) stop operating.

At this time, each jet nozzle (2), (3), and (4) is placed in the state where the valve body opening/closing operation motor (old) for each nozzle is initially set, that is, in the open state where the valve is retreated by 611I11 from the fully closed position. This allows for smooth supply and drainage of bath water when the water is stretched and drained.

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).
), hot water filling operation, anti-freeze operation, etc. can be controlled according to the detection results from the system.

Next, we installed a pressure detection sensor (4B) that also serves as a water level detection sensor.
), whether the water level of the bath water in the bathtub 6 body (1) satisfies the water level at which blow operation is possible (e.g., higher than the upper end position of the inlet (le) provided in the bathtub body (1)). is detected (220).

In the present invention, in order to ensure blow operation, the upper end position of the inlet (llI), 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 water level at which blow operation is possible. As the lower limit of , 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 is not sufficient to allow blowing operation (22ON), a warning of a drop in the water level is issued (225), and the operation is stopped (215). At this time, the warning of the water level drop is issued by flashing "L" indicating the water level drop on the clock display section (115) of the operation panel section (6) every second for 15 seconds, and by using a buzzer (not shown). Do this by making a sound. Furthermore, in a bathtub equipped with an automatic water heater, a hot water operation can be performed.

In addition, if the water level for blow operation is satisfied (2
20Y), then the bath water temperature detection sensor (T) detects whether the temperature of the bath water in the bathtub body (1) is within a temperature range (for example, 5 to 50°C) that allows blow operation ( 23Q).

In this example, the temperature range of the bath water that can be operated by blowing is determined, taking into consideration the protection of bathers and synthetic resin pipes, and the prevention of freezing of the bath water in the circulation pump (P). This is 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, the lower limit of the temperature range in which blowing operation is possible (e.g.
If the temperature is lower than 5° C. (235Y), antifreeze operation starts (300).

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

In addition, the upper limit of the temperature range in which blowing operation is possible (for example, 50
℃) (235N), a high water temperature warning is activated (400) and the operation is stopped (215). At this time, the high water temperature warning is issued on the clock display section (1) of the operation panel section (6).
15) Display rHJ indicating high water temperature by flashing every second for 15 seconds and by sounding a buzzer.

And if the water temperature allows blow operation (230Y)
, by turning on the operation switch (100) or (60) (415Y), the blow operation can be started (5 (10)).

This blowing operation (500) includes each blowing operation according to the jet form, a timer operation that causes the bather to perform the blowing operation within a preset time, and a timer operation that automatically operates the filter (43) in parallel with the blowing operation. This is a general term for the automatic filtration-like cleaning operation that performs cleaning, and each blow operation, timer operation, and automatic filtration-like cleaning operation will be described later in the 28th chapter.
This will be explained with reference to the subroutines shown in FIGS. 29 and 30.

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 (415), 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. 3.1.

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 is a child safety blow, that is, a mild blow, and the strength level is set to "medium".
(510). This prevents accidents such as children's feet getting caught and falling due to the jet flow at startup.

In this child safety blow state, a desired no-flow operation can be selected 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)
, can operate acupressure blow operation (525
).

Also, by turning on the pulse blow switch (103) (83), (590) (531) (532)
, pulse blow ABC operation can be operated, respectively (535) (53B) (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) (55B) (557)
, cycle blow ABC operation can be operated, respectively (555) (55B) (557).

Also, program blow switch (108) (67)
By turning on (560) (581) (562)
, program blow operation can be operated respectively (565) (58B) (587).

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 (10G) or (BO) (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, operations are made to change the strength level of the jet bath water.

The operation for changing the spouting position and strength level of the bath water 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 a timer time display, for example "5" representing 5 minutes set as the minimum blow operation time, and the timer time "5 minutes" can be set (585
), If you release the timer switch (114) within a certain period of time (for example, 2 seconds) to turn it off (590Y), the timer time display will become r5: OOJ after 2 seconds, the timer operation will start, and the timer time will change again. The displayed value decreases every second (595).

Also, do not press the timer switch (114) to turn it on while the timer is running (60ON).If the timer operation time has elapsed and the timer time display reaches rO:00J (605), the timer switch (114) will not turn on. It blinks for 5 seconds every 0.5 seconds and sounds a buzzer, and then the timer operation ends (eto), the operation is stopped, and the timer time display returns (615).

Also, if you want to set the timer time to a time other than the 5 minutes mentioned above, press and hold the timer switch (114) for more than 2 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. I can do it (620).

Then, when the desired number (for example, "9") is reached, release the timer switch (114) to turn it off (
825Y), the desired timer time (e.g. r9: OOJ) is displayed after 2 seconds, and the value on the timer time display decreases every second (595). While the timer is running, press the timer switch (114). Turn it ON (600) and release it within 2 seconds to turn it OFF (63
0Y), at that point the timer operation should be stopped 635)
, returns from timer time display to clock display.

At this time, the blowing operation continues (840).

Also, while the timer is running, the timer switch (114)
If you press and hold for more than 2 seconds to turn it ON (63ON), the timer time setting display will be displayed with 1 minute added to the current minute display, and by keeping the same timer switch (114) pressed, the timer will change every 0.5 seconds. The timer operation time can be increased by one minute (820).

Then, when the desired value is reached, switch the timer (
114) to turn it off (825Y), the desired timer time is displayed two seconds later, and the value displayed on the timer time decreases every second (595).

Further, the timer operation has priority over the blow operation and can be operated regardless of the jet flow form (including operation stoppage).

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

Further, during the timer operation, at all operation timings related to the timer operation such as setting the timer time, the timer time is illuminated by a light emitting diode on the clock display section (115) of the operation panel section (6). Note that the clock display section (115) is always lit when not displaying the clock.

Therefore, the timer time setting operation 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 7BOY after a certain period of time (for example, 1 hour)
), and in the case of a blow operation that satisfies the automatic filter cleaning conditions (765Y), an automatic filtration-like cleaning operation is started (7
70).

Here, the automatic filter cleaning conditions are when the water level and temperature are satisfied to allow blow operation, and the jet flow type is either mild blow, acupressure blow, or wave blow cycle blow, and the strength level is strong, Refers to either strong, medium or medium.

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, during automatic filtration-like cleaning operation, if the automatic filtration machine cleaning conditions are no longer satisfied (interrupted) due to changes in jet flow form or strength level (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).

Hereinafter, the main operating operations in the operating procedure of the bubble-generating bathtub will be further explained.

(IV-2) Explanation of conditions for starting blow operation The blow operation in the operating procedure described above is started only when the preset water level and water temperature conditions of the bath water in the bathtub body (1) are satisfied. There is.

In other words, the water level conditions are as shown in FIG.
), and when the water level is higher than the upper end of the ventral jet nozzle (4) opening, it is defined as water level A, and the water level is higher than the opening end of the ventral jet nozzle (4) and the inlet (1ffl). The water level is B when it is between the upper end and the inlet (1ffi).
When the water level is lower than the upper end of the water level C, the blowing operation is started when the water level is A or B, and the blowing operation is not started when the water level is C.

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

In this case, even if the water level is returned from water level C to water level B or A using hot water, etc., the blow operation will remain in a stopped state, and by turning on the operation switch again, the stoppage due to a drop in the water level can be canceled. This ensures reliable and safe operation.

At this time, on the clock display section (115) of the operation panel section (8), a light emitting diode is used to flash the rLJ display indicating the water level drop every second for 15 seconds, and a buzzer sounds to warn the user. There is.

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, (Soe) is the threshold value from a water level lower than water level C to water level C, (Seb) 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 C1, 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 based on a water temperature of 50°C that takes into consideration the protection of bathers and synthetic resin pipes, and a water temperature of 5°C that takes into account the prevention of freezing of the bath water in the circulation pump (P), for example. When the water temperature is higher than 50℃, it is defined as water fiA, when the water temperature is between 5℃ and 50℃, it is defined as water temperature B, and when the water temperature is 5℃.
The case where the water temperature is lower than 0.degree. C. is defined as the water temperature C. 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.

Further, 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 the water temperature is returned from water temperature A 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. , aiming for reliability and safety of operation.

At this time, on the clock display section (115) of the operation panel section (8), 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 the water temperatures A-B-C are as shown in Figure 35, and the bath water 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, (S'cb) is the threshold value from water temperature C to water temperature B, and (S' ba) is water temperature B. (S'ab) is the threshold from water temperature A to water temperature A, (S'ab) is the threshold from water temperature B to water temperature C, (S'be) is the threshold from water temperature B to water temperature C,
(S'co) is a threshold value from the water temperature C to a lower temperature side.

And the hysteresis is the threshold (Seo) (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.

Table 2 shows that by turning on each operation switch, the jet flow form changes from the jet flow form before turning on to the jet flow form after turning on.

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 order of high frequency of use (in this example, A →
B-C-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 (
When ea) (103) is turned on, the state changes to pulse blow A (state number 13AJ).

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, pulse blow switches (63) (103) are used.
J,: If ON, pulse blow B (state number r3B
Transition to J).

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 (68) (
105), cycle blow A (state number r
5AJ), and if the program blow switches (87) (108) are turned on, the state changes to program blow A (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.

In Table 2, "ON" indicates that the display section of the operating jet flow type lights up; for example, in the case of pulse blow A, the pulse flow display section (13g) and the selected pattern display The letters rAJ are lit in the section (142).

In the case of program blows A-B and 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 (tag), 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, the strength level of the jet flow is kept unchanged even if the jet flow form is changed.

In this way, it is possible to maintain the perceived strength level of the jet flow shape before the change, so there is no need to change the strength level, and when changing the jet flow shape, it is not uncomfortable for the bather.
You can avoid giving any impression. Further, the strength level may be changed to a medium level as the jet form is changed.

Furthermore, the spouting position of the bath water does not change even if the jet form is changed.

In this way, it is possible to maintain the spouting position of the bath water in the jet form before the change, so there is no need to perform an operation to change the spout position of the bath water, and when changing the jet form, it does not cause discomfort to bathers. You can choose not to give it.

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 hot water jetting position to a desired position that is suitable for 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 ejected from the foot, dorsal, and ventral nozzles (2) (2) (3) (3) (4) (4)
Big hole operation where bath water is spouted from six at the same time (950)
is set to the initial state.

Then, press any switch to turn off the 0N-OFF pattern switch for the foot, dorsal, and ventral jet nozzles that repeat ON/OFF operation (950) in which all of them are in the ON state. By (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) (95B) Long hole operation (950) from (957)
It can be restored.

In addition, among the pattern switches for the foot side, dorsal side, and ventral side jet nozzles from the four-hole operation (955) (956) (957),
By pressing the ON switch and turning it OFF (9
80) to (985), two-man operation with two jet nozzles deactivated (967) (968) (989)
) can also be used.

In addition, by pressing the OFF switch of the foot, dorsal, and ventral jet nozzle pattern switches (980) to (985), two-person operation (967) (
988) (989) Four-hole operation (955) (95
B) It can be returned to (957).

In addition, Table 3 shows the state transition of the above-mentioned bath water spouting position. Abdomen, back,
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. Indicator lamps (dorsal side, ventral side, foot side indicator lamps) that are lit by light emitting diodes are listed.

To explain specifically with reference to Table 3, if the operation switch (100) is turned on, the operation will stop (status number "0").
From the foot side/ventral side jet nozzle (2) (2) (3) (
3) (4) Six-person operation (950) where bath water is simultaneously spouted from the six (4) (state number is rl 11J)
Therefore, when the pattern switch (74) or (111) for the dorsal side jet nozzle is pressed to turn it off from the same state, the foot side Φ ventral side jet nozzle (3) (3) (4) (4) four-hole operation (955) ), and the state number becomes rollJ.

Furthermore, in the four-hole operation (state number r011J), the foot side indicator lamp (112a) and ventral side indicator lamp (113a) 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 six-person operation. This makes it easy to make changes. In Table 3, "-" indicates no change, and "." indicates OFF state.

Further, in the state transition of the bath water spouting position described above, the strength level does not change even if the bath water spouting 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. (rV-5) Explanation of state transition of strength level in blow operation (IV-1') The strength level in the operation procedure based on the flowchart of "Strong""Strongmedium""
Medium J There are five levels, ``medium-weak'' and ``weak,'' and the strength of each jet stream is varied, taking into account the content of each jet flow form. Different types have different jet strengths.

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

In Table 4, the operation stop state, five strength levels (strong, strong-medium, medium, medium-weak, weak) and program blows A-B-C are listed in the vertical direction, and each state number corresponds to the other. The operation switches (operation switch, bath water spout strong side switch, bath water spout open side switch) are listed on the right side, and the strength level indicator lamp (level high indicator lamp, level high/medium indicator lamp, level medium indicator lamp, level medium/low indicator lamp, level low indicator lamp).

And, the strength level is set by the bath water spout strong side switch (68).
Or press and release (107) to increase the strength by one step, and on the other hand, press and release the bath water spout opening switch (69).
Or, when you press and release (10g), 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 "OJ") to the strong/weak level "medium" (state number "3J)", and the hot water will be ejected from the strong/weak level "medium" to the strong side. When you press and release the switch (68) or (107), the strength level changes to ``1 strong'' (state number ``4''), and when you press and release the same switch (68) or (107) again, the strength level changes to `` The state transitions to "Strong" (state number "5").

In addition, the bath water spout opening switch (6
When you press and release 9) or (10g), the strength level changes to "r medium weak" (state number "2"), and the same switch (69)
Or press and release (10B) again to set the strength level to 1.
"Weak" (state number "1").

In addition, in program blow A-B-C, since the strength level is programmed in advance, the jet bath water strength/four side switch (88) (89) or (107) (l
Even if Q8) is operated, the strength level cannot be changed.

Further, in Table 4, "ON" indicates that the operating intensity level display 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 gushing bath water, 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 water 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-63 Explanation of priority order of main operating behavior specifications (II
Table 5 shows the priority order of the main operation specifications in the operation procedure based on the flowchart of No.-13.

Table 5 In this way, safety is ensured by giving top priority to stopping when the water temperature is high, and by setting priorities for other operations, we aim to protect bathers and each component. , 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 operation of the foot side, dorsal side, and ventral side jet nozzles (2), (3), and (4), and circulation The control timing for changing the rotation speed of the pump (P) is as shown in Tables 6 and 7 below.

[hereinafter referred to as Reihaku]

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
) (3) If it is necessary to give priority to the opening/closing operation of (4) and to lower the rotation speed of the circulation pump (P),
Priority is given to changing the rotation speed of the circulation pump (P) over the opening/closing operation of each jet nozzle (2), (3), and (4).

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 is prioritized over changing the rotation speed of the circulation pump (P). (2) (3) Prioritize the valve opening operations in (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. 4 is an explanatory diagram of the intake pipe. FIG. 5 is an enlarged sectional view of the jet nozzle. Figure 6 is a rear view of the same jet nozzle. Figure 7, Figure 5! -1 line sectional view. 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 diagram of each jet nozzle and circulation pump in cycle blow A-B. 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 water spouting position. (1,0): Bath water suction vibe (11): Bath water bullet feeding pipe Bubble generating bathtub circulation pump 1.1 Control section Bathtub body Foot side spout nozzle Back spout nozzle Ventral spout nozzle

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. A plurality of terminal ends of the bath water forced flow channel are opened into the bathtub body to form a spouting nozzle, and an air intake section is connected in communication with the bath water forced flow channel, so that a bubble-containing bath is discharged from the spout nozzle. In a bubble-generating bathtub configured to be able to spray hot water into the bathtub body, the amount of opening/closing of the above-mentioned spouting nozzle and the rotation speed of the circulation pump can be controlled via a control unit, so that the following can be performed. A bubble-generating bathtub that controls the ejection of hot water. (1) Obtaining changes in various jet forms. (2) Selecting various jet locations. 3) A bubble-generating bathtub that performs bath water spout control according to claim 1 or 2, wherein the control section controls the opening/closing amount of the spout nozzle and the rotation speed of the circulation pump, so that the various jet forms are as follows. . (1) Mild blowing in which the amount of hot water jetted from the jetting nozzle is large and the jetting pressure is low. (2) Acupressure blowing in which the amount of hot water ejected from the above-mentioned ejection nozzle is small and the ejection pressure is high. (3) Pulse blowing, in which the spouting nozzle is periodically opened and closed to alternately spout and stop bath water. (4) Wave blow that periodically changes the rotation speed of the circulation pump to periodically change the amount of hot water jetted out. 4) In the above-mentioned various types of jet flow, by opening and closing each jet nozzle at a constant cycle, it is possible to perform cycle blowing in which the jet flow location is changed at a constant cycle.
3. A bubble-generating bathtub that performs bath water spouting control according to any one of 3. 5) In the various jet forms described above, by controlling the opening/closing amount of each jet nozzle and the rotation speed of the circulation pump, the jet form, jet strength, and jet location can be arbitrarily combined or selected according to a preset program. Claims 1 to 3, which enable program blowing to vary the jet flow by changing it over time.
4. A bubble-generating bathtub that performs bath water spouting control according to any one of 4.