JPH02307461A - Air bubble generating bathtub alterable in jet stream form - Google Patents

Abstract

PURPOSE:To enjoy an air bubble generating bathtub safely and effectively and to perform healthy bathing by making a jet stream form variously alterable and, further, making a plurality of sub-jet stream forms alterable and selecting a set reference sub-jet stream form in newly altered jet stream forms. CONSTITUTION:The opening and closing quantities of jet nozzles 2, 3, 4 on foot, back and abdomen sides automatically variable in a jet amount and the number of rotations of a recirculation pump P are made controllable through a control part C. The jet stream form of bath hot water is made alterable to either one of mild blow wherein the jet amount of bath hot water from the jet nozzles is much and the jet pressure of said nozzles is low, acupressure blow wherein the jet amounts of bath hot water is little and jet pressure is high, pulse blow wherein the ejection and stoppage of bath hot water are alternately performed and wave blow wherein the number of rotations of the recirculation pump P is cyclically changed to cyclically change the jet amount of bath hot water. In the pulse blow and the wave blow, a blow form is further made alterable to either one of pulse blows A, B, C and wave blows A, B, C as sub-jet stream forms different in jet stream intensity and the pulse blow A and the wave blow A high in use frequency are set to reference sub-jet stream forms set to the control part C.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a bubble-generating bathtub in which the form of jet flow can be changed.

(B) Conventional technology Conventionally, as disclosed in Japanese Patent Application Laid-open No. 59-135058, bubble-generating bathtubs have been designed to circulate bath water between a bathtub body and a circulation pump installed outside the bathtub body. A flow path is provided, and an air intake part is provided in the middle of the bath water circulation flow path, and bath water mixed with air bubbles is spouted into the bathtub body by the operation of a circulation pump. The jet flow form of hot water can be changed in various ways by controlling the circulation pump.

Such a change in the form of the jet flow may be a combination of a main change in the jet flow and further sub-changes.

(C) Problems to be Solved by the Invention However, if the jet flow forms are classified in detail in this way and main changes and sub-changes can be made, changing the main jet flow form in the main change will result in a secondary change in strength, for example. Unless it is determined how the jet form will affect the new main jet form, the bather will not be able to effectively receive the desired benefits of the main jet form.

(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 opening/closing amount of the above-mentioned spray nozzle and the rotation speed of the circulation pump are controlled via the control unit to control the jet flow shape. can be changed in various ways, and each jet form can also be changed to multiple sub-jet forms, and in the newly changed jet form, the standard sub-jet form set in advance in the control unit is selected. It is an object of the present invention to provide a bubble generating bathtub which is characterized in that it is configured so that the jet flow form can be changed.

In addition, in the present invention, the control section controls the opening/closing amount of the spout nozzle and the rotation speed of the circulation pump to control the jet flow form of the bath water. - Mild blow with low pressure, ■ Acupressure blow with a small amount of hot water spouted from the spout nozzle and high spout pressure, ■ Pulse blow where the spout nozzle is periodically opened and closed to alternately spout and stop bath water ■ By periodically changing the rotation speed of the circulation pump, it is possible to change to either wave blow or wave blow, which periodically changes the amount of hot water jetted out. Pulse blow and wave blow also have different jet strength, etc. Pulse blow A-B as sub-jet form
-C and wave blow A-BφC, and is also characterized by making the frequently used pulse blow A and wave blow A a standard sub-jet form that is set in advance in the control unit. It is something.

(E) Functions and Effects In the present invention, when using the bubble-generating bathtub, the circulation pump is operated to circulate the bathwater in the bathwater circulation flow path, and at the same time blow out the bathwater mixed with bubbles from the spouting nozzle. Therefore, when it is desired to change the jet flow form according to the bather's preference, the circulation pump and jet nozzle are controlled as appropriate.
Mild blows, acupressure blows, pulse blows, and wave blows can be obtained.

Moreover, between pulse blow and wave blow, it is possible to select either pulse blow A-B-C or wave blow A/B-C as sub-jet forms with different jet strengths, etc., and - there are many sub-jet forms. When the form control is set, even if the main jet form is changed, pulse blow A or wave blow A, which is a reference sub-jet form set in advance in the control unit, is selected as the new jet form.

Therefore, even if the bather changes the jet flow shape, the bather can clearly anticipate the sub-jet flow shape of the newly changed jet flow shape, so that the bather can safely and effectively enjoy the bubble-generating bathtub, which is healthy. Can take a bath.

[Margin below]

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

[11] Overall description of the bubble generating bathtub [11] Explanation of the 11 configuration of each part (II-13 Explanation of the configuration of the jet nozzle [ll-2) Explanation of the configuration of the air intake part (II-33)
Explanation of the circulation pump (II-4) Explanation of the filter (II-5) Explanation of the control section (II-, 6) Explanation of the operation panel section (If-7)
Description of remote controller [111] Description of jet flow form (II [-1) Mild blow (III-2) Shiatsu blow CDl-3] Pulse blow (III-4) Wave blow CI [[-5] Cycle blow Cm-6 ) Programmed blow [IV] Explanation of the operation of the bubble generating bathtub [IV-1) Explanation of the operating procedure based on the flowchart (TV-2) Explanation of the conditions for starting the blow operation [IV-3
) Explanation of the state transition of the jet flow form (TV-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 (Explanation of the priority order of the main operation operation specifications in TV-61) (rV-7) Control timing of opening/closing operation of the valve body for regulating the ejection amount and changing the rotation speed of the circulation pump [Left below] [I] Overall description of the bubble generating bathtub First, the entire bubble generating bathtub according to the present invention The configuration of is explained below.

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

The bathtub main body (1) has a flange-shaped edge (1a) of a constant width on its periphery, and an air intake portion (5) on the edge ([a).
), and four vertically long parts (1b) (1b) with a substantially V-shaped cross section are formed approximately in the center of the left and right side walls, and the same four parts (1b) (
1b) 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 bath ffl (A), and inside the case (9) there is a circulation pump (P) that circulates the bath water, and a pump that circulates the bath water. A filter (43) that filters the bath water circulated by (P)
, a pump drive motor (M) that drives the pump (P), a motor (M) for opening and closing the nozzle valve body (Ml), which will be described later, and a motor for opening and closing the valve body for adjusting the amount of air bubbles ( Ml) and a control section (C) that controls the driving of the electric three-way valve (45).

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 pipe (10) for sending bath water from the circulation pump (P) to the bathtub (A)
It consists of a bath water bullet delivery vibrator (11) for sending bath water to the body.

The bath water suction pipe (10) is connected to the bathtub body (1).
One end is connected to the suction port (lrA) opened at the bottom of the pump, and the other end is connected to the water suction port of the circulation pump (P) so that bath water is sucked into the circulation pump (P). The sending vibrator (11) has one end connected to the water outlet of the circulation pump (P), and the other end connected to the jet nozzles (2), (3), and (4), respectively.

Further, the above-mentioned suction port (1 m) is provided at a lower position than the foot side/dorsal side jet nozzles (2) (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 vibrator (11) to detect the pressure of the bath water being pumped through the vibrator (11). The detection results from the sensor (48) are sent to the control unit (C), which controls each ejection nozzle (2) (3) (4
), the rotation speed of the pump drive motor (M) and each spout nozzle (2) (3) (
4) is controlled by changing the opening/closing amount.

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

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 filter 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 pipe (11) to detect the temperature of the bath water being fed 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), the control unit (
Each operation/stop of blowing operation, anti-freezing operation, filter cleaning operation, and automatic filter cleaning operation, which will be described later in accordance with C), is performed.

In this way, the blow operation, antifreeze operation, filter cleaning operation, and automatic filter 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 middle. (2) (3
) (4) Branch pipe (12a) (12b)
(12c) and each branch pipe (L2a) (1
2b) Connect the tip of (12c) to each jet nozzle (2
) (3) It is connected to (4).

Then, by using the negative pressure generated when the bath water is spouted from each of the jet nozzles (2), (3), and (4), the air taken in from the air intake part (5) is sent to each branch nozzle of the intake pipe (12). Bubbles (12a) (12b) (12c) are inhaled into each jet nozzle (2) < 3) (4), and air bubbles are drawn into the bathtub body (1) from each jet nozzle (2) (3) (4). It is possible to squirt mixed bath water.

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 bath t' Q: I am able to perform the driving operations in (A).

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

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

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

In the above configuration, the gist of the present invention is to provide automatically variable jetting nozzles for foot side, dorsal side and ventral side (2) (3)
The opening/closing amount of <4) and the rotation speed of the circulation pump (P) are configured to be controllable via the control unit (C), respectively, and various jet flow forms (mild blow, acupressure blow,
(pulse blow, wave blow, cycle blow, and program blow), and each jet form also has a plurality of sub-jet forms a<pulse blow A.
-B-C, wave blow A-B◆C1 cycle blow A-B-C and program blow A-B-C), and in the newly changed jet form, the control part (C) The main feature is that the reference sub-jet forms (for example, pulse blow A1 wave blow A1 cycle blow A and program blow A) are selected.

Further, a detailed explanation of this configuration will be given later in the description of the jet flow form in [ll11] and in the description of the state transition of the jet flow form in [IV].

[Margin below]

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

That is, the foot side spout nozzle (2) has a cylindrical nozzle casing (20) cantilevered to the outside of the bathtub body (1) at the foot side spout nozzle connection port (Ig) of the bathtub body (1). A jet 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 consists of a throat part (BO) that determines the direction of the bubbly bath water that is spouted towards the water.

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

(lh) is a ring-shaped gasket (II) that fits around the periphery of the leg side jet nozzle connection port (1g), and the ring-shaped gasket (II) that is attached to the rear surface of the gasket (lh) is the ring-shaped part threaded portion (11). (
20a) is an outer peripheral male screw portion formed on the outer peripheral surface of the front end of the nozzle casing (20), and (20c) is a bullet feed pipe connecting portion that removably connects the hot water bullet feed pipe (11). .

(n) indicates the bath water inflow direction.

In addition, (26) covers the front end of the nozzle casing (20) and the ring-shaped part threaded part (11) with the front end (26b), and fixes the throat fixing member (25), which will be described later, at the rear end. It is a cosmetic cover with a cylindrical overall shape.
A female threaded portion (26a) is formed on the outer peripheral surface, and a separation threaded portion (26a) is formed on the outer peripheral surface.
8a) is removably screwed into an inner circumferential male threaded portion (20j) formed on the inner circumferential surface of the front end portion of the nozzle casing (20).

Further, the throat portion (60) is composed of a throat (24), a throat fixing member (25) that supports the throat (24) in an adjustable manner, and a front portion of the valve seat forming cylinder (21). ing. (24a) is a throat base whose outer peripheral surface is formed into a spherical shape, (25a) and (25b) are the 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 (21) 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) (2lb), 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 (26).

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 (20) through the front end opening thereof, so that the rear end surface is located near the bullet feeding pipe 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 (24
a) is inserted into the base of the throat (24a) whose forward movement of the JFr is regulated by the throat fixing member (25).
This restricts forward sliding of the valve seat forming cylinder (21).

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). A nozzle valve body (22), a nozzle valve body opening/closing motor (Ml) that opens and closes the jet ffi regulating valve body (22), and a rear wall forming plate (29) that supports the motor (ML). consists of.

In FIGS. 6 and 7, (21d) is an air inflow path formed in an annular shape along the outer circumferential surface of the valve seat forming cylinder (2), (21c) and (21f) are the air inflow paths. (21d) on the intake vibe connecting part (20b) side and the same connecting part (20b)
The valve seat forming cylinder (21) communicates with the intake pipe connecting portion (20b) through the air inlets (21e) (21['). , an air mixing part (70) is provided in the valve seat forming cylinder (21).
) is formed. (+I) indicates the air inflow direction.

The nozzle valve body opening/closing motor (Ml) is a stepping motor that operates step by step with each manually applied pulse, and as shown in Fig. 8, a cylindrical motor casing is attached to the rear wall forming plate (29). (23) is removably attached, and a cylindrical coil (23) is attached inside the motor casing (23).
3a) is provided coaxially with the nozzle casing (20), and a cylindrical magnet (23b) is disposed within the coil (23a), and by exciting the coil (23a), the magnet (23b) is A cylindrical rotor nut (23c) is installed concentrically and integrally within the magnet (23b), and the rotor nut (23c) is made to be able to rotate in reverse.
is rotatably supported by a bearing (230), and ejects m: 4! at the tip into the same rotor nut (23c). A valve body support rod (23d) with a J-node Kawai body (z2) attached thereto is inserted so as to be able to slide forward and backward.

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

In addition, in this embodiment, in order to control the position of the injection amount regulating valve body (22) without error, the valve body (22) is pressed against the valve seat (21a) which is in the fully closed position as the reference position. A method is adopted in which the control unit (C
), the number of pulses (rotation angle) from the base position of the nozzle valve element opening/closing motor Ul) is calculated to control the valve element position.

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

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

As a result, if the result obtained by calculating the number of pulses and the detection result of the valve body position detection sensor (231') are different, the operation of the valve body (22) for regulating the amount of ejection is stopped. At the same time, it also provides a warning that there is a malfunction.

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

With this configuration, the motor for opening and closing the valve body for the nozzle (
old), the coil (23a) is energized and the magnet (23a) is energized.
The rotor nut (23b) is rotated together with c), and the valve body support rod (23b) is rotated in conjunction with the rotation of the rotor nut (23b).
23d) is moved forward and backward, and the valve body support rod (23d) is moved forward and backward.
) The spout ffi regulating valve body (22) attached to the tip of the bathtub body (2La) is brought into contact with and separated from the valve seat (2La) so that the amount and pressure of hot water spouted into the bathtub body (1) can be finely adjusted. ing.

In addition, the motor (Ml) for opening and closing the valve body for the nozzle moves the valve body (22) for adjusting the jetting amount steplessly forward and backward over a minute distance to adjust the jetting amount and jetting pressure of the bath water in minute steps. Any suitable actuator may be used, and a piezoelectric actuator may also be used.

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

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

(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.

The six foot, dorsal, and ventral jet nozzles (2) described above (
3) The usage pattern of (4) is later shown in Figures 13 and 14.
As will be explained with reference to the figure, when using all six nozzles to eject bath water at the same time, there are cases where one or two types of ejection nozzles are selected and used, and each usage pattern depends on the operation. Panel part (6) or remote controller (3)
0) can be selected using a switch to select the jet nozzle usage pattern.

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

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

■ Drive the motor (Ml) for opening and closing the nozzle valve body at a normal voltage (for example, 12V) at 200pps,
The ejection amount regulating valve body (22) is moved back six steps 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 C: Ja setting of the nozzle valve body opening/closing operation motor (Ml).

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

b) Due to the drive described in (■) above, the valve body (22) for regulating the ejection amount
can be brought into contact with the valve body (21a) with a relatively low 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
Assuming that the valve is in the open state with the valve set back 6 mm from the fully closed position,
This allows for smooth supply and drainage of bath water when filling and draining water.

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

(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 cloth body (80) and an air intake port (82) on the outside.
a), a lid (82) that covers the top opening of the air intake cloth main body (80), and an intake pipe connecting portion (83) that is connected to the central part of the bottom surface of the air intake cloth main body (80). and a communication path (8B) provided in the intake pipe connection part (83) and connecting the intake pipe connection part (83) and the air intake cloth main body (80).
It consists of a bubble amount control valve (87) that opens and closes the air bubble amount control valve (87).

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

The air bubble ffi control valve (87) has a cylindrical valve body (
88), a motor (Ml) for opening/closing the valve body for regulating the amount of air bubbles attached to the bottom (88a) of the valve body (88), and a valve body support rod (89) attached to the motor (Ml), The valve body (90) is attached to the tip of the rod (89) and is movable toward and away from a valve seat (88b) formed on the upper edge of the valve body (88). (88d) is the valve body (88d)
8) is a communication port provided in the peripheral wall.

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

In addition, a silencer (
92) is made of a porous sintered plastic body (for example, a sintered polyethylene body, a sintered polypropylene body, etc.), and is formed into a cylindrical shape using a sound absorbing material having a sound absorbing function and an air purifying function. (93) is a silencer support plate (93) that supports a plurality of silencers (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.

(II-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 filtering device (43), which will be described later, is communicated with the bath water bullet feeding vibe (11) via the bullet feeding path (32b), and is connected to the filtering device (43) via the filtering bullet feeding path (32c) provided on the negative side of the upper impeller chamber (33). ) is communicated with one end of the lead-in pipe (41). (32e) is the water inlet, (32r) is the lower water outlet,
(32g) is the upper spout, (zl) is the circulation flow direction, (
Z2) indicates the filtration flow direction.

Then, the impeller shaft (35) is supported so as to vertically pass through the center 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) are installed coaxially within the upper and lower impeller chambers (33) and (14), respectively, and the impeller shaft (35) is mounted integrally and watertight on the pump casing (32). Pump drive motor (M)
The drive shaft (39) is interlocked with the drive shaft (39). (36) is a sealing material attached to the impeller shaft (35) to ensure watertightness within the pump casing (32).

Furthermore, as shown in Fig. 12, a filter (43) is connected to the upper impeller chamber (33) of the circulation pump (P) via a lead-in pipe (4t) and a return pipe (42). , the upper water spout (32) of the upper impeller chamber (33)
g) through the lead-in pipe (41) connected to the
A part of the bath water sucked into the lower impeller chamber (34) is sent to the filter (43), and the bath water filtered by the filter (43) is returned through the pipe (42) and passed through the bath water bullet delivery pipe (
11) The bath water is sent into the bath water and is made to join with the bath water that is forcibly sent into the bath water bullet delivery pipe (11) from the lower spout (32r) 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 from the bathwater suction pipe (10) through the water suction port (32e) into the bathwater suction path (32a) of the lower impeller chamber (34). From the lower impeller chamber (34) to the hot water bomb feed path (32)
b) The water is forcibly fed into the bathtub body (1) through the lower spout (33a) and further through the bathwater bullet delivery pipe (11).

At this time, a part of the bath water that has flowed into the lower impeller chamber (34) flows into the upper impeller chamber (33) through the communication flow path (32d), passes through the filter pellet feeding path (32c), and passes through the upper impeller chamber (32c). The bath water is sent from the spout (33a) through the lead-in pipe (41) to the filter (43), where it is filtered.The filtered bath water passes through the return pipe (42) and is sent to the bath water delivery pipe (
1■) 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 (old) for anti-freezing is installed around the outer circumference of the circulation pump (P), and the heater (old) is connected to the bath water forced-feeding vibe (11) by the bath water temperature detection sensor (T). 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 (E) interposed between the pump drive motor (M) and the output interface (51) is connected to the AC commercial power supply according to a program stored in the memory (52) of the control unit (C), which will be described later. The system performs conversion processing on the input frequency supplied from the oscilloscope. In other words, the inverter (IE) converts the power from the AC 100V power supply into 2
It outputs 00V, three-phase variable speed motor drive power.

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

In this way, the rotation speed of the circulation pump (P) can be smoothly and reliably controlled by the inverter (IE), resulting in the following effects.

■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 rotation speed of the circulation pump <p> using the inverter (E), the jet strength can be changed in several steps or steplessly according to the bather's preference, so It can give you a sense of satisfaction.

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

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

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

■Since the inverter (IE) can give a slow startup speed to the circulation pump (P),
It is possible to reduce the sound of air being discharged from inside the piping, and it is possible to reduce 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 inverter (E) is used to adjust the rotation speed of the circulation pump (1') to the appropriate level. Since the power consumption can be controlled to reduce unnecessary power consumption, power consumption can be reduced.

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

[■-4″ J filter description The configuration of the filter will be explained below.

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

One end of the retractable vibrator (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 returning it to the lower end of a) and connecting it in communication with one end of the vibrator (42), and passing the bath water downward from the top of the filter body (43a) through the filter material (43c). I'm trying to be able to do that.

In addition, a filter bar heater (+12) for freezing prevention is installed around the outer periphery of the filter (43), and the same heater (I+ 2
) in accordance with the result of the temperature detection of the bath water in the bath water bullet feeding vibe (11) by the bath water temperature detection sensor (T).
By controlling this, it is possible to prevent the bath water in the filter (43) from freezing.

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 (46) to the upper and lower impellers (33a) (34) 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) and memory (51) consisting of ROM and RAM.
2) and a timer (53).

In the above configuration, the input interface (5
0) is the ejection amount yJ! Valve element reference position detection sensor (23[') that detects the opening/closing amount of the J section valve element (22), valve reference position sensor (91) that detects the opening/closing amount of the bubble volume control valve (5d), bath water A pressure detection sensor (48) that detects the water pressure in the bullet feed pipe (11), a bath water temperature detection sensor (T) that detects the temperature of bath water in the bathtub body (1), an operation panel section (6), and a remote. An infrared receiving sensor (30) receives an infrared drive signal from the controller (30).
b) is connected.

On the other hand, the output interface (51) includes a clock display section (115) and a bath water temperature display section (11B) of the operation panel section (6), which will be described later, a pump drive motor (M), and a nozzle valve body for opening and closing operation. Motor (Ml), motor for opening/closing the valve body for adjusting the amount of air bubbles (M2), heater for the pump (I
ll), filter bar heater (!+2) and electric three-way valve (
45) is 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) (Ml) (M2 ) and an electric three-way valve (45).

[ll-6] Description of operation panel section The operation panel section (6) for manually sending 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 (1a) of the bathtub body (1), and has an operation switch (100) and a plow operation switch. Mild plow switch (lot), Shiatsu plow switch (102), Pulse plow switch (
103), wave plow switch (104), cycle plow switch (105), program plow switch (106), and bath water spout strong/four side switch (1
07) (108) and the dorsal jet nozzle usage pattern switch (108) which is a switch for switching the jet nozzle usage pattern.
111), foot side jet nozzle use pattern switch (1
12) , and ventral jet nozzle usage pattern switch (
113), a timer switch (114), a clock display section (115) that also serves as a one-hour timer display section, a bath water temperature display section <116), and a filter cleaning switch (117).
, a time setting switch (118), an hour setting switch (119), and a minute setting switch (120) for adjusting the time displayed on the clock display section (115).

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

Also, (toOa) turns on the operation switch <100)
Operation indicator lamp (101a) that lights up when
102a) (103a) (104a) (105a)
(106a) is each blow operation switch indicator lamp, (
109a) (109b) (109c) (109d
) (109e) is a strength level display lamp, (llla
) (llZa) (113a) are the foot side, dorsal side, and ventral side indicator lamps, respectively, (121) (122) (123)
is each selection pattern A in pulse blow, wave blow, cycle blow, and program blow, which will be described later.
The lamp (117a) that displays -B-C is a filter cleaning indicator lamp, and (117b) is a filter cleaning operation indicator lamp. Furthermore, as shown in FIG. 13, the operation panel section (6) is equipped with an infrared receiving section (30b) at the negative end, and can be operated by operating each switch provided on the remote controller (30), which will be described later. Based on the serial code transmission signal set in advance, when a predetermined code signal corresponding to each switch is transmitted from the infrared transmitter (30a) provided in the remote controller (30), the signal is transmitted to the infrared receiver (aob). ), 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
) is installed so that it can be opened and closed freely, and with the same opening and closing M (125),
Timer switch (114), clock display (115)
, the bath water temperature display section (116), the filter cleaning operation indicator lamp (lf7b), and the infrared receiving section (30b).

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

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

[■-7] Description of remote controller In addition to the operation panel section (6) described above, the remote controller (3o) is used to manually send drive output to the control section (C) in a bathing state. 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 (82), and a pulse blow switch (63).
), wave blow switch (65), cycle blow switch (6B) and program blow switch (67)
), the bath water spout strong/four side switch (68) (69),
It is equipped with a foot side jet nozzle usage pattern switch (74) which is a switch for changing the jet nozzle usage pattern, a dorsal side jet nozzle usage pattern switch (75), and a ventral side jet nozzle usage pattern switch (76).

Then, by turning on the operation switch (80),
This makes it possible to start a blow operation, which will be described later.

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

The blow state display section (130) allows the blow state to be visually recognized in order to improve the usability of the remote controller (30).

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

A jet flow type character display section (131) is displayed on the right half of the blow state display section (130) at a constant f vertically on the page.
Open the i\IR and see the mild blow display section (135), shiatsu blow display section (13B), and pulse blow display section (1
37) A wave blow display section (13g), a cycle blow display section (139) and a program blow display section (140) are provided, and a pulse blow display section (137),
Wave blow display section (138), cycle blow display section (139), and program blow display section (14)
Selected pattern A-B-C display area (137
a) (138a) (139a) (140a) are provided.

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

In addition, on the left half of the blowing state display section (130), there is a bathtub periphery line (144) that graphically represents the periphery of the bathtub body (1).
and a bather diagram (145) in which the bather is graphically displayed within the bathtub circumference line (144), and the above-mentioned wave blow display section ( 132) and bath water spout position display section (138)
) has been established.

The wave blow display section (132) includes a thin wave blow display line (1) within the bathtub peripheral line (144).
A plurality of L32a) are provided at intervals in the longitudinal direction, and the electronic display band formed by the display line (L32a) 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 confirmed that it is.

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 at the bottom of the blow state display section (130) on the paper, and as described later, "strong", "midway", "medium", "medium weak", " A strong indicator lamp (
134a), an intermediate indicator lamp (134b), a medium indicator lamp (134G), a medium-low indicator lamp (134d), and a weak indicator lamp (134c) 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 (13
0) The characters "strong" and "weak" inside are printed.

Moreover, the remote controller (30) is configured to be able to float on the surface of the bath water (with a specific gravity of 01 inches to 1 inch), so that a bather can operate it while taking a bath.

With the above configuration, the bubble generating bathtub (
In A), the pump drive motor (M
), a motor for opening/closing the valve body for the nozzle (Ml), a motor for opening/closing the valve body for bubble ffi adjustment (M2), and an electric three-way valve (45). The rotational speed of the circulation pump (P) that is 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 the electric three-way valve (45).

Then, the rotation speed of the circulation pump (P) is adjusted, and the jet f
By adjusting the opening/closing amount and opening/closing speed of the FI adjustment valve body (22), or a combination thereof, six types of bath water can be produced, with differences in the amount of bath water jetted from each jet nozzle, the jetting pressure, and the amount of air bubbles mixed in. Jet modes (mild blow, shiatsu blow, pulse blow, wave blow, cycle blow, and program blow) can be set, and each jet mode can be controlled by turning on and off the blow operation switch provided on the remote controller (30). Allowing you to choose.

Moreover, for each jet flow type, by operating the hot water jet strong / station side switch (8g) (69) ON / OFF, the hot water jet can be adjusted to five levels (strong, midway, medium, medium-low, low). It is possible to adjust the strength level.

Furthermore, by turning ON/OFF the respective changeover switches (101), (102), etc. for the jet nozzle usage pattern, it is possible to select the usage pattern of the six jet nozzles to which the above-mentioned jet flow form is applied. I have to.

This selection operation changes the initial settings to each of the six jet nozzles (
2) (2) (3) (3) (4) The bath water can be spouted from all of (4) at the same time, and then each spout nozzle (2) (3) ( 4) ON/OFF of each spout nozzle usage pattern switch (74) (75) (7[f) corresponding to spouting/stopping of bath water.
This can be done by turning it off.

Furthermore, by turning on and off a filter cleaning switch (77), filter cleaning can be started and stopped in priority to blow operation, as will be described later.

[I11] Description of jet flow forms Below, the jet flow forms obtained by this example (mild blow, acupressure blow, pulse blow, wave blow,
Regarding cycle blow and program blow, the first
This will be explained based on FIGS. 6 to 26.

(III-1) Mild Blow Mild blow is performed at each jet nozzle (2) (3) (4
) The bath water is in the form of a jet with a large amount of water and a low jet pressure, and it is mild and soft, enveloping the entire body of the bather, giving the bather the sensation of a stimulating massage.

In other words, the mild blow is performed by each jet nozzle (2) (
3) Operate each 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 3000r, p, 11). Then, the discharge pressure of the pump (P) is set to several levels (for example, three levels) of strength within a constant low pressure range (for example, 0.2 to 0.5 kg/cd), and each jet Nozzle (2) (3) (4) A larger amount of bath water (e.g.
It is capable of ejecting 40 to 8 ON 7 m1n).

In addition, Fig. 16 shows an injection amount-injection pressure characteristic curve (Fl) (F2) that changes with changes in the rotation speed of the circulation pump (P).
) (F3), (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, 3000 r, p, m). (Yl) is
It shows the mild blow zone, and points (bl) (b2
) indicates a mild blow state set within the same mild zone (Yl).

Furthermore, FIG. 17 shows examples of jet nozzle characteristic curves R1, R2, and R3 when the jet flow rate adjusting valve body (22) is fully opened, half opened, and quarter opened. ul, u
2. u3... is an ejection pressure line. However, the magnitude relationship of the ejection pressure is ul<u2<ul...

Further, point (b) in FIG. 16a can be represented by point (b'') on the jet nozzle characteristic curve (R1) shown in FIG. 17a.

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

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

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

In addition, Fig. 18 shows the foot side, dorsal side, and ventral side jet nozzles (2).
<3) It is a timing chart of the opening/closing operation of each ejection amount adjusting valve body (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 mild blow sui.
A certain period of time (tl) from the time of Sochi operation (to) (for example,
0 second), the intermediate position (di) is maintained at high speed (preferably maximum speed) for a certain period of time (t2) (for example, 1 second).
(valve opening position before changing the jet flow form) to the set valve opening position (d2
) (for example, 6 m11 + valve open position retreated from the fully closed position).

The circulation pump ('P) is operated by each ejection amount adjusting valve body (
Immediately before the time (t'l) at which the setting valve opening operation ends (22) has elapsed, the rotation speed (■ [) (for example, 280 Or, p, m) before changing the jet flow form is gradually decreased, and the rotation speed is maintained for a certain period of time. (t'2) (for example, 3 seconds) at a certain number of rotations (v2
) (for example, 2400r, p, n+).

In addition, in this example, the operation starts (operation switch Sochi (6)
0) or (100)), the blowing operation starts, and at the start of the blowing operation,
In consideration of the safety of children and the elderly when bathing, a circulation pump (
It has a child safety function that slowly increases the rotation speed of P).

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

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

That is, in FIG. 19, the valve body (22) for adjusting the jet Hk of the back jet nozzle (3) is set at a certain time (Ll) (for example, 0
After a certain period of time (t2) (for example, 1 second) has passed, the speed is high (preferably maximum speed) and the intermediate position (stop position) is reached.
After operating the valve to a more fully closed position to close the valve, and maintaining the same closed state for a certain period of time (t3) (for example, 2 seconds), the valve is operated at high speed (preferably for a certain period of time (14) (for example, 1 second)). maximum speed) to the set valve opening position (d2) (for example, the valve opening position is 6 steps backward 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 tO), for a certain period of time (t2) (e.g. 1 second), the motor is moved at high speed (preferably maximum speed) from the intermediate position (di) (stop position). The valve is operated to a substantially fully open position (d2) (for example, an open position that is 6 positions backward from the fully closed position).

Then, the circulation pump (P) releases the ejection ′i! from the dorsal ejection nozzle (3). To: The J8 valve body (22) is operated immediately after the time (t"1) when the valve closing operation ends, and the rotation speed is slowly and gradually increased by inverter control for a certain period of time (L'2) ( For example, the rotation speed (V2) (for example, 28t) (]r, LI) is set to a constant value within 10 seconds).

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) (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 [:TV-73].

1: I [I-2] Shiatsu Blow Shiatsu blow is a jet type 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 is By applying a jet stream vigorously to a certain area, the bather is given a stimulating pine surge sensation with a shiatsu 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 amount of ejection, and the rotational speed of the circulation pump (1') is kept within a certain range (for example, 20
0 (within the range of 1 to 3000 r, p, m), and the discharge pressure of the same pump (P) is set to a constant high pressure range (for example, 0.5 to 1.0 kg/c). The strength level can be set in stages (for example, five stages).

In addition, the ejection amount-ejection pressure characteristic curve (F3) in Fig. 16a
The point (e) on the top is the one that minimizes the amount of hot water spouted out (for example, 3
0fl/mIn) shows the state of acupressure blowing.

In addition, in FIG. 16a, (Y2) indicates the acupressure blow zone in the ejection amount-ejection pressure characteristic, and the point (eD(e
2) shows the acupressure blow state set within the same acupressure blow zone (Y2).

Further, point (e) in FIG. 16a can be represented as a point (0°) 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)
(c'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).
It is a timing chart of the opening/closing operation of each ejection amount adjustment valve body (22) of (3)<4) and the operation of the circulation pump (P).

That is, in FIG. 20, each injection ffi regulating valve body (
22) after a certain time (tD (for example, 0 seconds) has elapsed since the acupressure blow switch operation (to), a certain time (t2)
) (e.g. 1 second) is a high speed (preferably maximum speed)
Then, the set valve opening position (d2) (for example, the valve opening position is 1.51 steps back from the fully closed position) from the valve open position (di) before changing the jet flow form (for example, the valve opening position is 61 steps back from the fully closed position). The valve is operated to open until the position).

The circulation pump (P) is operated by each ejection amount adjusting valve body (2
Immediately after the time (t'l) at which the set valve opening operation in 2) ends, the rotation speed (m) before changing the jet flow form (for example, 2)
400r, p, a+) is gradually increased for a certain period of time (
t'2) (for example, 3 seconds) at a constant number of revolutions (■2)
(For example, 2800r, p, a+).

(m-3) Pulse blow Pulse blow uses individual jet nozzles (2) (8) (
4) is a jet type in which the bath water is periodically opened and closed to alternately emit and stop the water, and by emitting and not emitting the jet in pulses, it can give a sharp stimulation to the bather. It is.

That is, in the pulse blow, in the acupressure blow,
The jet ri adjustment valve body (22) of each jet nozzle (2) (3) (4) is turned on for a short period of time (for example,
The valve is moved alternately between the set valve open position and the fully closed position at high speed (preferably maximum speed) in seconds). 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 intensity level of the pulse blow can be changed by changing the rotational speed of the circulation pump (P) to keep the amount of hot water ejected within a certain range (for example, 30 to 5 (IQ/m)).
This can be done by setting several stages (for example, five stages) within (in).

Further, the above-mentioned pulse blow is activated by turning on the pulse blow switch (B3) 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 jetting amount adjusting valve body 22) in (4) and the operation of the circulation pump (P).

That is, in FIG. 21, each injection amount adjusting valve body (2
2) is a certain period of time (tl) (for example, 0 seconds) from when the pulse blow switch is operated (to)! ! After passing, the valve open position (dl) before changing the jet flow form (for example, 6 from the fully closed position)
The set valve opening position (d2) (
For example, a certain period of time (t2) (for example, 1 second) is required to reach a high speed (valve open position, which is 2 m11 backwards from the fully closed position).
After maintaining the valve open state for a certain period of time (t3) (for example, 1 second), the valve is operated at a high speed (preferably at maximum speed) for a certain period of time (t4) (for example, 1 second). After closing the valve to the fully closed position and maintaining the fully open state for a certain period of time (t5) (for example, 1 second), the valve is operated at high speed (preferably maximum speed) for a certain period of time (t6) (for example, 1 second). The valve is opened to the set valve opening position (d2), and the valve is kept open for a certain period of time (t7) (for example, 1
After the valve is maintained (seconds), the valve is opened and closed, which is repeated periodically.

Then, the circulation pump (P) operates for a certain period of time (t'l) (for example, 1
After the rotation speed (m) (for example, 2400 r, p, m) before changing the jet flow form is gradually increased, the rotation speed becomes constant within a certain period of time (t'2) (for example, 3 seconds). (V2) (for example, 280Or, p, m).

Also, a certain period of time (t3) for maintaining the above set valve open state.
By changing , different pulse blow patterns can be set as subforms, but in this example, pulse blow A-B-C with such fixed time (t3) of 1 second, 2 seconds, and 3 seconds is used. Three types of patterns are set so that the time of stimulation given to the bather by the jet stream can be selected according to preference.

(III-4:l 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 ejection 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 a range of 1600 to 3000 r, p, m).

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

Also, (di) (d2) (d3) shown in Figure 16b
are the wave blow jet amount-spout pressure characteristic curves, and the jet amount and jet pressure of the bath water change along each curve (di), (d2), and (d3).

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

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

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

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

That is, in FIG. 22, each injection amount adjusting valve body (2
2), after a certain period of time (tl) (for example, 1 second) has elapsed since the wave blow switch was operated (LO), the valve open position (di) before changing the jet flow form (for example, 6 m from the fully closed position)
Set valve opening position (c12) from the valve opening position moved back m)
(For example, the valve is operated at a high speed (preferably maximum speed) for a certain period of time (t2) (for example, 1 second) until the valve opens to the valve open position, which is 4 m+s backward from the fully closed position.

Immediately after the time (t3) at which the set valve opening operation of the NJ node valve element (22) ends, the circulation pump (I') starts to rotate each jet m (rotational speed m before changing the jet flow form) (for example, 2400r, p, m) to a certain high rotational speed (■2) within a certain time (t4) (for example, 4 seconds)
) (for example, 3000r, p, m), and then gradually reduce the rotation speed for a certain period of time (15) (for example, 4 seconds)
Low rotation speed (V3) (e.g. 1800r, p, m
), and further increase the rotation speed gradually for a certain period of time (1B
) (for example, 4 seconds), the rotation speed is changed periodically such that the above-mentioned high rotation speed (v2) is reached.

Furthermore, by changing the way in which the rotational speed of the circulation pump (P) is changed periodically, different wave blow patterns can be set as sub-forms. A
The wave blow pattern described below is set as wave blow BφC, and Bfiri type patterns are set.

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 (■1) (for example, 240
0r, I), m) for a certain period of time (t4
) (for example, 4 seconds) at a certain high rotational speed (V2) (
For example, 3000r, p, m) and the same high rotational speed (v2
) 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.

11) and the same low rotation speed (v3) for a certain period of time (t7)
(for example, 2 seconds) and then gradually increase the rotation speed to reach the above-mentioned high rotation speed (v2) within a certain period of time (t8) (for example, 4 seconds). It is changing to

In addition, as shown in the timing chart of FIG. 24, the wave blow C starts immediately after the time (t3) at which the set valve opening operation of each jet volume regulating valve body (22) ends and before the jet flow form is changed. rotation speed (m) (e.g. 240Or, r7
．． m ) is gradually increased so as to draw a downwardly convex curve to a constant high rotational speed (v2) (for example, 3 (lOQr, p, m) within a certain time (t4) (for example, 3 seconds), After sonication, the rotation speed is adjusted for a certain period of time (t5) in a downwardly 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 (tO) (
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 (IE), the rotation speed of the circulation pump (P) can be periodically changed smoothly and reliably. It is possible to generate a wave blow A-B-C with pulsating strength in a weak jet stream.

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

(III-53 Cycle Blow Cycle blow is a device that allows you to enjoy the change in the position of the hot water spout by automatically and periodically changing the position where the hot water is spouted.

That is, the cycle blow is performed, for example, by blowing the dorsal side jet nozzle (3) (3) - the ventral side jet nozzle (4) (4) - the foot side jet nozzle (2) (2) for a certain period of time for each jet amount adjustment. The valve body 22) is opened to eject bath water,
At this time, the form of the bath water spouted from each spout nozzle (2), (3), and (4) is determined by adjusting the opening/closing m of each jet volume of the weekly valve body (22) and the rotation speed of the circulation pump (P). According to
Mild blows, acupressure blows, wave blows, and even jet forms that periodically change between mild blows and acupressure blows can be adopted.

In this example, cycle blow AB-
Three types of patterns C are set, and each cycle blow A-B-C will be explained below 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 have elapsed, move only the jet volume adjustment valve body (22) of the back jet nozzle (3) to the valve open position before changing the jet flow form (
dl) (for example, a valve opening position that is 6 mm back from the fully closed position) to the set valve opening position (d2) (for example, a valve opening position that is 1.5 steps back from the fully closed position).
t2) (for example, 1 second) is operated at a high speed (preferably maximum speed), and the valve bodies (22) for adjusting the jetting amount of the other foot jetting nozzle (2) and ventral jetting nozzle (4) are operated at a high speed (preferably maximum speed). The valve is closed at a high speed (preferably at the maximum speed) for a certain period of time (+2) (for example, 1 second) until the fully closed position is reached.

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 (13) (for example, 2 seconds), and then completely closed at a high speed (preferably maximum speed) for a certain period of time (14) (for example, 1 second). The valve is operated until the valve is closed.

Subsequently, the valve body (22) for adjusting the jetting amount of the ventral jet nozzle (4) which was in the closed state is closed for a certain period of time (+5) (for example,
0 seconds) and then set the valve open position (d2) at high speed (preferably maximum speed) for a certain period of time (+6) (for example, 1 second).
After operating the valve to the same setting (d2) for a certain period of time (17) (e.g. 2 seconds),
8) (for example, 1 second), the valve is operated 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).

Subsequently, after a certain period of time (+9) (e.g., 0 seconds) has elapsed, the valve body (22) for one week of ejection from the foot side ejection nozzle (2), which was in the closed state, is turned on for a certain period of time (tlo) (e.g., 1
seconds) at high speed (preferably maximum speed) and set valve opening position (
d2) and held at the same set valve opening position (d2) for a certain period of time (tel) (for example, 2 seconds), the valve is operated at high speed (preferably maximum speed) for a certain period of time (+12) (for example, 1 second). ) to close the valve to the fully closed position.

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

Subsequently, the ejection ffl iM regulating valve body (22) of the back side ejection nozzle (3), which was in the closed state, was turned on for a certain period of time (+13).
(For example, 0 seconds) after a certain period of time (114) (
For example, for 1 second), the valve is operated at high speed (preferably maximum speed) to the set valve opening position (d2), and for a certain period of time (tL5).
After holding the same set valve open position (d2) for a certain period of time (for example, 2 seconds), the valve is closed at a high speed (preferably maximum speed) for a certain period of time (for example, 1 second) to the fully closed position. .

In addition, the circulation pump (P) operates for a certain period of time (t'l) (for example, 0
seconds) after which the number of revolutions m) before changing the jet flow form (e.g. 2
80Or, +3. m) gradually decreases over a certain period of time (t
's) (for example, 1 second) at a constant number of revolutions (V2) (
For example, 2500V, p, m) 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 adjusting the ejection amount of each ejection nozzle (2) (3) (4) is The only difference is that the fixed time (13) (+7) (ill) for holding the valve open position (d2) is different (for example, 4 seconds).

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

Furthermore, the cycle blow C takes the form of a wave blow, and as shown in the timing chart of FIG. For example, 4m1),
Fixed time (+3) to hold the same set valve open position (d2)
(+7) (tit) is different from that of cycle blows A and B (for example, 8 seconds).

Furthermore, the rotation speed of the Kinutan pump (I') is changed periodically.

That is, after a certain period of time (t'l) (for example, 0 seconds) has elapsed since the cycle plow switch was operated (to), the circulation pump (P) changes to the rotational speed ('/l) before changing the jet flow form.
(for example, 240 Or, r, m) is gradually decreased to a constant low rotational speed (v8) (for example, 1 [100 r, p, m) within a certain time (t'2) (for example, 1 second),
After that, the rotation speed is gradually increased for a certain period of time (t'3).
(for example, 4 seconds) with a constant high rotation speed (v2),
After that, the rotation speed is gradually decreased for a certain period of time (t'4).
(for example, 4 seconds) is set to a constant low rotation speed (v3).

Then, the constant low rotational speed (■8) is maintained for a certain period of time (t
'4) After maintaining (for example, 1 second), the above-mentioned change in rotation speed (V3→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) (1) (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 example, the bath water spout positions of cycle blows A, B, and C were changed from dorsal side to ventral side to foot side to dorsal side.
The order is not limited to this in any way, and other orders (for example, dorsal side - foot side, ventral side, and front side) can be adopted.Also, the position of the hot water spout may be changed irregularly. You can also do it.

(III-6) Programmed Blow Programmed blowing is a method in which the jet form, jet strength, and jet location are arbitrarily combined or changed over time according to a preset program to diversify the changes in the jet flow. This means that you can enjoy the unexpected combination order of the jet flow forms, which is not a fixed discipline method.

In addition, in this embodiment, multiple programs with different contents are prepared in consideration of the age, gender, etc. of the bather as sub-forms, and a standard blow operation with the most common menu is provided. A certain program blow A,
It is possible to select Program Blow B, which is the hardest blowing operation with the most intense menu, and Program Blow C, which is the lightest and gentlest blowing operation.

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

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

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

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

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

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

In addition, several types of menus are set for each program blow A-B-C, and when one of the program blows is selected, the menu is randomly selected from among the selected program blows. You can also.

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

[Margin below]

[IV] Explanation of the operation of the bubble-generating bathtub CIt/-11 Explanation of the operating procedure based on the flowchart Below, the operation of the bubble-generating bathtub (A) described above is explained in Figs.
This will be explained based on the flowchart shown in FIG. 32.

First, refer to the main routine shown in FIG.

I will explain.

Insert the plug of the control unit (C) etc. into the power supply and supply power (Z
oo).

All foot, dorsal, and ventral jet nozzles (2) (3) (
Motor for opening/closing the valve body for each nozzle in 4) (old)
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 (^)
Circulation pump <p> installed in and each jet nozzle (2) (3
) Various actuators such as (4) stop operating.

At this time, each jet nozzle (2), (3), and (4) is in the state where the valve body opening/closing operation motor (Ml) for each nozzle is initially set, that is, in the open state in which the valve is moved back six steps from the fully closed position. This allows for smooth supply and drainage of bath water when filling and draining water.

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

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

In this example, the temperature range of the bath 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, when the water temperature allows blow operation, (220Y
), the operation switch (100) or (60) can be turned on.

Then, turn on the same operation switch (100) or (60).
(225Y), the pressure detection sensor (48), which also serves as a water level detection sensor, detects whether the water level of the bath water in the bathtub body (1) is at a level where blow operation is possible (for example, an inlet provided in the bathtub body (1)). (a position higher than the upper end position of 1 m) is detected (227).

In the present invention, in order to ensure blow operation, the upper end position of the inlet (Lm), which is the lowest water level at which bath water can be circulated in the bath water circulation flow path (D), is set at the 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 that allows blow operation is satisfied (227Y), then the bath water temperature detection sensor (T) detects that the temperature of the bath water in the bathtub body (1) is within the temperature range that allows blow operation (e.g. , 5 to 50° C.) (230).

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

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

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

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

In addition, when the operation is stopped (215), if the water temperature does not meet the temperature that allows blowing operation (22ON), the water level is checked.
The pressure detection sensor (48), which also serves as an output sensor, detects whether the water level in the bathtub body (1) satisfies the water level that allows blow operation (235), and if it does not (235N), the operation is stopped. Become a state (215)
.

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

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

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

In addition, before starting blowing operation or during blowing operation,
If the water level is not sufficient for blow operation (227
N), warning of low water level is issued 228), and the operation is stopped (215). At this time, the water level drop warning is displayed on the clock display section (115) of the operation panel section (6).
This is done by flashing the LJ display every second for 15 seconds and by sounding a buzzer (not shown). Furthermore, in a bathtub equipped with an automatic water heater, a hot water operation can be performed.

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

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

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

[Blow operation]

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

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

That is, for other than mild blow, by turning on the acupressure blow switch (102) (82) (520
), acupressure blow operation can be operated (52
5).

Also, turn the pulse blow switch (103) (63) to
By N (530) (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) (66), (555) (556) (557)
, cycle blow ABC operation can be operated, respectively (555) (55B) (557).

In addition, the program blow switch (10B> (fi7
) by turning on (560) (561) (5
G2) and 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 (100) or (60) (570), all blow operations can be stopped and the operation stopped.

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

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

The operation 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, then press the timer switch (114) to turn it on (5110Y).
Clock display section with digital display using light emitting diodes (1
15) The clock display changes to the timer one hour display, for example "5" representing 5 minutes set as the minimum blow operation time, and the timer one hour "5 minutes" can be set (5g
5) If you release the timer switch (114) within a certain period of time (for example, 2 seconds) to turn it off (590Y), the timer one hour display will become r5:00J after 2 seconds, and the timer operation will start. The value displayed on the timer one hour decreases every second (595).

In addition, if the timer switch (114) is not pressed and turned on during timer operation (80ON), and the timer operation time elapses and the timer one hour display reaches ro:oOJ (605), the time required to take force ζ Display 0.5
The timer flashes for 5 seconds every second, and the buzzer sounds. After that, the timer operation ends (eto), the operation stops, and the timer returns to the one-hour display (615).
).

Also, if you want to set the timer one hour to a time other than the five minutes mentioned above, press and hold the timer switch (114) for more than two seconds (59ON), and the display of "5" above will change to 0.
．． Since it is increased in 1 minute increments every 5 seconds and returns to "1" after the maximum set value (for example, r19J), you can set your favorite blow operation time in the range of 1 minute to 19 minutes, for example. I can do it (620).

Then, when the desired number (for example, "9") is reached, release the timer switch (114) to turn it off (
625Y), the desired timer one hour (for example, r9: OOJ) is displayed two seconds later, and the value displayed on the timer one hour decreases every second (595). While the timer is running, press the timer switch (114). Press to turn it on (600), then release within 2 seconds to turn it off (63
0Y), at that point the timer operation should be stopped E135)
, returns from timer one-hour display to clock display.

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

Also, while the timer is running, the timer switch (114)
If you press and hold the timer switch (114) for more than 2 seconds to turn it on (63ON), the timer one hour setting will be displayed with one minute added to the current minute display. The timer operation time can be increased in minutes (620).

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

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

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

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

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

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

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

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

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

[Automatic filter cleaning operation]

In the automatic filter cleaning operation, the filter (43) is automatically cleaned in parallel with the blow operation, and the cumulative time of the blow operation (the cumulative time since the circulation pump (P) starts) is 760Y after a certain period of time (for example, 1 hour) has elapsed.
), and in the case of blow operation that satisfies the automatic filter cleaning conditions (765Y), the automatic filter cleaning operation is started (7
70).

Here, the automatic filtration cleaning conditions are when the water level and temperature are satisfied for blow operation, and when the jet flow type is mild blow, shiatsu blow, wave blow, or cycle blow, and the strength level is This refers to strong, middle, or medium cases.

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 filter cleaning operation ends, but the blowing operation continues, and the cumulative blowing operation time restarts (785).

In addition, if the automatic filtration cleaning conditions are no longer satisfied (interrupted) due to a change in jet flow form or strength level during automatic a filter cleaning operation (775Y), the number of retries due to interruption will be a certain number of times ( For example, if the number of times (79ON) is less than 4 times, the automatic filter cleaning operation will be interrupted. A cleaning operation is started (770).

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

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

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

[Filter cleaning operation]

The filter cleaning operation is performed separately from the automatic filter cleaning operation described above.
After turning on the operation switch (100) or (6o), before or after starting blowing operation, or even during blowing operation, by turning on the filtration-like cleaning switch <LIT), priority is given to blowing operation. It is something that can be done.

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

In addition, during filter cleaning operation, the circulation pump (P)
(7) The rotational speed is, for example, 3000r, p, m, and each of the jetting amount adjusting valve bodies (22) of the leg side jetting nozzle (2) and the back side jetting nozzle (3) is set to, for example, 0. 5m+
The valve is in a slightly open state in which it is moved backward, and only the jet amount adjusting valve body (22) of the ventral jet nozzle (4>) is in a fully closed state.

In addition, if there is an abnormality in the pressure and water temperature (915Y), the water temperature will be the lower limit temperature of the bath water temperature range that allows blow operation (for example,
It detects whether the temperature is lower than 5℃, and if it is lower than (9℃).
25Y), start antifreeze operation 320), and if the temperature is not low, that is, higher than the upper limit temperature of the bath water temperature range that allows blowing operation (for example, 50'C) (925N), stop the operation. state (215).

Next, the antifreeze operation will be explained with reference to the subroutine shown in FIG. 32.

[Anti-freezing operation]

Freeze prevention operation is performed using the circulation pump (P) and bath water circulation flow path (D).
) This is done to prevent the bath water within the temperature range from freezing, and it takes priority over blow operation, and during blow operation, the bath water temperature reaches the lower limit of the temperature range that allows blow operation (for example, 5℃). ), blowing operation is forcibly stopped and anti-freezing operation is started.

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

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

At this time, the bath water temperature is lower than the lower limit temperature (for example, 5°C) of the temperature range that allows blow operation, or the temperature corresponding to the hysteresis provided in the bath water temperature detection sensor (T) is at the lower limit temperature of the same temperature range ( For example, lower than the temperature (2-3℃) plus
(325N), and if the water level of the bath water in the bathtub body (1) is at a level that allows blowing operation (330Y), the antifreeze operation is continued. During such anti-freeze operation, the clock display section (115) of the operation panel section (6) displays rCJ, which indicates low water temperature, on and off every second.

In addition, if the bath water temperature is higher than the lower limit temperature of the temperature range that allows blowing operation by pouring hot water or the like, or the temperature corresponding to the hysteresis provided in the bath water temperature detection sensor (T) is added to the lower limit temperature of the same temperature range. If the temperature exceeds the temperature (325Y), the operation will be stopped (215).

[Margin below]

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

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

In other words, the water level conditions are as shown in FIG.
4), and the water level is set based on the ventral jet nozzle (4).
The water level is defined as A when the water level is higher than the upper end of the opening of the ventral side jet nozzle (4), and the water level is defined as B when the water level is between the upper end of the opening of the ventral side jet nozzle (4) and the upper end of the inlet (lfll). 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 (6), 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.

The detection specifications for the water levels A-B-C are as shown in Figure M34. Considering that the water surface of the bath water ripples when a bather enters and exits the bathtub, the pressure as a water level detection sensor is By providing hysteresis in the output voltage of the detection sensor (48) to prevent hunting, smooth control can be performed by the control unit (C) via the pressure detection sensor (48).

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

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

In addition, the water temperature conditions are based on a water temperature of 50°C that takes into account the maintenance of bathers and synthetic resin piping, and a water temperature of 5°C that takes into consideration prevention of freezing of bath water in the circulation pump (P), for example. Water temperature is defined as water temperature A when the water temperature is higher than 50°C, water temperature B when the water temperature is between 5°C and 50°C, and water temperature of 5°C.
The lower case is set as water temperature C, and when water temperature B is used, the blowing operation is operated, and when water MA or C is used, the blowing operation is not operated.

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

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

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

In addition, the detection specifications for the water temperatures A-B-C are as shown in figure f535, and in consideration of the fact that the water surface of the bath water ripples when a bather enters and exits the bathtub, the bath water temperature detection sensor ( T
) by providing hysteresis in the resistance value to prevent hunting from occurring, allowing smooth control by the control unit (C) via the bath water temperature detection sensor (T).

In Figure 35, (S'oc) is the threshold from a temperature lower than water temperature C to water temperature C, (S'cb) is the threshold from water temperature C to water temperature B, (S'ba) is water temperature B The threshold from water temperature A to water temperature A, (S'ab) is the threshold from water aA to water temperature B, (
S'bc) is the threshold value from water temperature B to water temperature C, (S'c
o) is a threshold value from water temperature C to a lower temperature side.

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

(IV) Description of state transitions of jet forms The state transitions of the various jet forms described above are 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, which are sub-jet forms, the newly changed sub-jet form must be set in advance between the same type of jet form. For example, the transition is made in the order of the opening degrees used (A-B-C-A in this embodiment).

In addition, between different types of jet forms, the transition is always made to a preset standard sub-jet form, for example, a sub-jet form with a higher usable opening (A in this embodiment).

Specifically, referring to Table 2, if the operation switch (100) is turned on, an operation stoppage message is issued! (Status number “0”
”) to a mild blow (state number “1”).

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

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

Further, if the pulse blow switch (63) (103) is turned on to make a transition from the pulse blow A state to the same type of jet flow form, the state changes to pulse blow B (state number r3BJ).

In addition, wave blow switches (65) (104) are used to transition from the state of pulse blow A to a different type of jet flow.
If you turn on, wave blow A (state number r4AJ)
and cycle blow switch (6B) (
105), cycle blow A (state number r
5AJ), and also the program blow switch (
87) If you turn on (10B), 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.

In addition, since the sub-jet forms always change in a preset order, the transition pattern of the sub-jet forms 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 (its) 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 (1i1B
), the acupressure blow display section (137), the pulse blow display section (188), and the 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 form before the change, so there is no need to change the strength level, and it is possible to avoid causing discomfort to the bather when changing the jet flow shape. can do. Further, the strength level may be changed to a medium level as the jet form is changed.

Furthermore, the 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, as the jetting position of the bath water is changed, all the jetting nozzles (2) (!l) (4) are opened so that the changed jetting shape can be experienced with the entire body. Thereafter, it may be possible to change the hot water spouting position to a desired position that is appropriate 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, from long-hole operation (950) where all of the ON/OFF pattern switches for the foot side, dorsal side, and ventral side jet nozzles are ON, which repeats 0N-OFF operation, by pressing any switch to turn OFF. (951) (952
) (953), four-hole operation (955) (95B) (957) with two jet nozzles deactivated can be performed.

In addition, by pressing the OFF switch of the foot, dorsal, and ventral jet nozzle pattern switches (951), (952), and (953), four-hole operation (95
5) (95B) Six-person 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) (95B) (957),
By pressing the ON switch and turning it OFF (9
60) to (965), two-person operation with two jet nozzles deactivated (967) (96g) (969
) can also be done.

In addition, by pressing the OFF switch of the foot, dorsal, and ventral jet nozzle pattern switches (960) to (965) and turning on the pattern switch, large volume operation (987) (
98g) (969) four-hole operation (955) (95B)
(957) can be returned.

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, the operation switch (
IQO), 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 nozzles in (4) (state number is rl 11J), and from the same state, the pattern switch for the back spout nozzles (
74) or (111) to turn it off, the foot side
A transition is made to the four-hole operation (955) of the ventral side jet nozzle (3) (3) (4) (4), and the state number becomes rollJ.

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

In this way, when starting operation, the initial setting is set to long hole operation,
By turning the foot, dorsal, and ventral jet nozzle usage pattern switches on and off from the water entry operation, you can easily change from four-hole operation, two-person operation, or three-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. You can choose not to give it.

[Margin below]

(IV.-5) Explanation of the state transition of strength levels in blow operation (IV-1) The strength levels in the operating procedure based on the flowchart are "strong", "midway", "medium", and "medium-weak" for each jet form. The jet strength is set to 5 levels from ``weak'', and the strength of each jet flow is varied, taking into consideration the content of each jet flow type. They are different.

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

In Table 4, the operation stop state, five strength levels (strong, middle, medium, medium-weak, and weak) and program blows A-B-C are listed vertically, and each state number is listed with the corresponding right The operation switches (operation switch, bath water spout position switch, bath water spout position switch) are listed next to each other, and the strength level display lamps (level strong display lamps, (level midway indicator lamp, level middle indicator lamp, level middle/weak indicator lamp, level weak indicator lamp) are listed.

The strength level is set by the hot water jet force switch (68).
Or press and release (107) to increase the strength by one step, and vice versa.
Alternatively, when you press and release (108), the strength changes by one level.

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

In addition, the bath water spout four side switch (6
When you press and release 9) or (108), the strength level changes to "medium/weak" (state number "2"), and the same switch (69)
Or press and release (10g) again to change the strength level to "
"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 (68) (69) or (107) (1
Even if you operate 08), you cannot change the strength level.

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]

(mV-6) Explanation of priority order of main operational specifications (IV
Table 5 shows the priority order of the main operating specifications in the operating procedure based on the flowchart of -1).

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

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

[Margin below]

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

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

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

[Brief explanation of the drawing]

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. FIG. 6 is a rear view of the jet nozzle. FIG. 7 is a cross-sectional view taken along the line II in FIG. 5. FIG. 8 is an enlarged sectional view of the motor for opening and closing the nozzle valve body. FIG. 9 is an enlarged sectional view of the air intake section. FIG. 10 is a sectional view taken along the line ■-■ in FIG. 9. FIG. 11 is a partially cutaway front view of the pump drive motor and circulation pump. FIG. 12 is a sectional view of the filter. FIG. 13 is a plan view of the operation panel section. FIG. 14 is a plan view of the remote controller. FIG. 15 is a side view of the remote controller. FIG. 16a and FIG. 16b are explanatory diagrams of the jetting amount vs. jetting pressure characteristic. Figures 17a and 17b are explanatory diagrams of jet nozzle characteristics. FIG. 18 is an operation timing chart of each jet nozzle and circulation pump during mild blowing. Fig. 19 is an operation timing chart of each ejection nozzle and circulation pump in child safety blowing. Fig. 20 is an operation timing chart of each ejection nozzle and circulation pump in acupressure blowing. FIG. 21 is an operation timing chart of each jet nozzle and circulation pump during pulse blowing. FIG. 22 is an operation timing chart of each jet nozzle and circulation pump in wave blow A. FIG. 23 is an operation timing chart of each jet nozzle and circulation pump in wave blow B. , FIG. 24 is an operation timing chart of each jet nozzle and circulation pump in wave blow C. FIG. 25 is an operation timing chart of each jet nozzle and circulation pump in cycle blow AB. FIG. 26 is an operation timing chart of each jet nozzle and circulation pump in cycle blow C. 27 to 32 are flowcharts of the operation of the bubble generating bathtub. FIG. 33 is an explanatory diagram of the water level detection reference position. Figure 34 is a clear 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. (A): Bubble generating bathtub (P): Circulation pump (C): Control unit ([): Bathtub body (2): Foot side spout nozzle (3): Dorsal side spout nozzle (4): Ventral side spout nozzle ( 10): Bath water suction vibrator (11): Bath water bullet delivery pipe Patent applicant: Totoki Co., Ltd. Representative: Ken Matsuo - Department Figure 2 Figure 4 Figure 7 Figure 8 Figure 12 Figure 1034a No. 18 Figure (Mile) 7 “Warme Fuimin 7” + Eatoku No. 16a
Fig. 17a Fig. 16b Fig. 17b MU ot&(,,. )) Fig. 30 Fig. 31 To the spoon 7J, private company, Karasu Fig. 33 Fig. 34 Fig. 35

Claims (1)

[Claims] 1) A bath water circulation channel consisting of a bath water suction channel and a bath water forced flow channel is interposed between the bathtub body and a circulation pump installed outside the bathtub body. 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 squirt hot water into the bathtub body, the jet flow form can be varied in various ways by controlling the amount of opening/closing of the above-mentioned spout nozzle and the rotation speed of the circulation pump via a control section. In addition, each jet form can be further changed to a plurality of sub-jet forms, and the configuration is such that a newly changed jet form selects a standard sub-jet form set in advance in the control unit. A bubble-generating bathtub that can change the shape of the jet stream. 2) The control unit controls the opening/closing amount of the spout nozzle and the rotation speed of the circulation pump to control the jet flow form of the bath water. (2) Acupressure blow with a small amount of hot water spouted from the spout nozzle and a high spouting pressure; (3) The spout nozzle is periodically opened and closed to alternately spout and stop the hot water. (4) Wave blow, which periodically changes the rotation speed of the circulation pump to periodically change the amount of hot water jetted out. Pulse blow and wave blow can be changed to either: Pulse blows A and B as sub-jet forms with further different jet strengths, etc.
・It is possible to change between C and wave blow A, B, or C, and the frequently used pulse blow A and wave blow A are made into standard sub-jet forms that can be set in advance in the control unit. 2. The bubble-generating bathtub according to claim 1, wherein the shape of the jet stream can be changed.