JPH03221044A - Injection nozzle structure for air bubble generating bath tub - Google Patents

Abstract

PURPOSE:To prevent direct collision of powerful hot bath water with a physically weak person and to prevent the occurrence of an accident, e.g. a fall due to slipping of a foot, as much is possible by mounting the upward oscillating angle regulating stopper of a throat for deciding a bath tub injection direction on the tip of a nozzle injection amount automatic variable nozzle on the belly side. CONSTITUTION:In an injection amount automatic variable. injection nozzle 4, a throat part 59 and an air mixing part 70 are located in a nozzle casing 20, a throat port 59 is disposed to the front part of the casing 20, and a throat 24 provided at its interior with an injection flow passage and a throat fixing member 25 to support the throat in a manner to be regulatable of oscillation are provided. An oscillation angle regulating stopper 60 is mounted on the inner surface of a decorative cover 26 to regulate the bath hot water injecting direction, especially an upward bath hot water injecting direction of the throat 24. Thus, the upward oscillation angle of the throat 24 can by regulated within a safe oscillating angle, direct collision of powerful bath hot water to a physically weak person, e.g. children, aged persons, and the occurrence of an accident, e.g. a fall due to hook of a foot, is prevented as much as possible to ensure safety.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to a jet nozzle structure that can freely adjust the amount of hot water jetted into a bathtub body.

(B) Prior Art Conventionally, the present applicant has previously disclosed in Japanese Patent Application No. 331,772/1988 as a form of a jet nozzle used in a bubble-generating bathtub.

This jet nozzle is an automatic variable jet nozzle, and essentially includes a nozzle casing 101 whose front end is watertightly connected to an opening in the side wall 100 of the bathtub body, and a neck at the front inside the nozzle casing 101. A slow eye 02 arranged so as to be swingable; a valve seat forming cylinder 104 arranged in the middle of the nozzle casing 101 and equipped with a valve seat 103;
an air mixing space 106 interposed between the valve seat 103 and the throat 102 and communicating with the air intake portion 105;
At the rear of the nozzle casing 101, there is provided a bath water inflow space 107 that communicates with the air inflow space through a valve seat 103, and a valve body 108 that is disposed within the bath water inflow space 107 so as to be able to freely come into contact with and separate from the valve seat 103. The nozzle valve body opening/closing motor 109 moves the valve body 10B forward and backward.

In addition, the motor 109 for opening and closing the nozzle valve body is a power supply cord, control cord, etc.! It is connected to a power source and a control device via 1110.

By driving the nozzle valve opening/closing motor 109 based on the drive output from the control device, it is possible to accurately and reliably adjust the amount of bubble-mixed bath water spouted from the spout nozzle.

In addition, such a spout nozzle can freely vary the spout amount and spout pressure of the hot bath water spouted from the spout nozzle in cooperation with a circulation pump whose rotation speed is controlled by an inverter or the like. It is possible to obtain various types of blowing operations with different jetting amounts and jetting pressures. In FIG. 14, 111 is a gasket such as an O-ring provided to prevent electrical leakage to the bathtub body due to communication between the bath water inflow space and the nozzle valve opening/closing motor 109, and 112 is a motor protection. It's a cover.

(c) Problems to be Solved by the Invention However, such jet nozzles still have the following problems to be solved.

That is, the slow eye 02, which is disposed in the front part of the nozzle casing 101 so as to be able to swing vertically and horizontally, can swing at a large swinging angle not only in the horizontal direction but also in the vertical direction. You can freely change the direction in which the bath water is ejected.

However, like the other jet nozzles, the ventral nozzle also swings upward at a large angle, but in this case, the weak people (children and the elderly) are hit directly with the strong bath water, and the weak people try to put their feet down. There is a risk of accidents such as falling and falling.

An object of the present invention is to provide a jet nozzle structure for a bubble-generating bathtub that can solve the above problems.

(d) Means for Solving the Problems The present invention provides a bathtub that includes a bathwater forced flow channel and a bathwater bullet flow channel between a bathtub body and a circulation pump installed outside the bathtub body. A circulation flow path is provided, and the end of the bath water circulation flow path is opened into the bathtub body to form a jet nozzle, and an air intake section is connected in communication with the bath water forced flow flow path, so that the end of the bath water circulation flow path is opened into the bathtub body, and an air intake part is connected in communication with the bath water forced flow flow path. In a bubble-generating bathtub that is capable of spouting bath water mixed with bubbles into the bathtub body, preferably, among the foot nozzle, dorsal nozzle, and ventral nozzle provided on the front, rear, and side surfaces of the inner side wall of the bathtub body, respectively, Relating to a spout nozzle structure for a bubble-generating bathtub, characterized in that a swing angle regulating stone bar for regulating the upward swing angle of the throat for determining the bath water spout direction is attached to the tip of the ventral side nozzle automatically variable spout amount nozzle. It is something.

(e) Actions and Effects According to the present invention, the following actions and effects occur.

For example, if a swing angle regulating stopper is attached to the tip of the ventral nozzle's automatically variable spray amount nozzle, which regulates the upward swing angle of the throat for determining the bath water spout direction, it is possible to directly hit a vulnerable person (such as a child or an elderly person) with a strong force. It is possible to prevent the bath water from coming into contact with the bath water, and it is possible to prevent as much as possible accidents such as a weak person getting his or her leg caught and falling.

(F) Example Hereinafter, the structure of the jet nozzle for a bubble-generating bathtub according to the present invention will be specifically explained based on the example shown in the attached drawings.

[Overall structure of bubble-generating bathtub] First, the overall structure of a bubble-generating bathtub equipped with a jet nozzle according to the present invention will be described.

In FIGS. 1 to 3, A is a bubble-generating bathtub, and the bubble-generating bathtub A has a box-shaped bathtub body 1 with an opening on the top, and has automatic variable spray volume installed on the front and rear walls and on the left and right side walls, respectively. A total of six foot, dorsal, and ventral jet nozzles 2, 2, 3, 3, 4, and 4 are provided.

The bathtub body 1 has a flange-like edge 1 having a constant width on the periphery.
a, an air intake portion 5 is provided on the same edge portion 1a, and vertically elongated recesses 1b and l having a substantially V-shaped cross section are provided approximately at the center of the left and right side walls.
The ventral jet nozzle 4.4 is attached to the inclined surface of the concave portion 1b facing the rear wall (dorsal side) of the concave portion 1b, facing toward the center of the rear wall.

Moreover, the ventral side jet nozzles 4, 4 are provided at a higher position than the other leg side and dorsal side jet nozzles 2, 2, 3.3, so that the bath water can be delivered to the ventral side, chest side, and other parts of the human body. We make sure that you can hit it.

A functional unit 9 is disposed outside the bubble-generating bathtub A, and inside the unit 9 there is a circulation pump P that circulates bath water, and a bath water that is circulated by the circulation pump P. A filter device 43 that filters the water, a pump drive motor M that drives the pump P, a nozzle valve opening/closing motor M1 (described later), a valve opening/closing motor gate 2 for adjusting the amount of air bubbles, and an electric motor. A control section C that controls the driving of the three-way valve 45 is provided.

Moreover, between the circulation pump P and the bubble generating bathtub A,
A bath water circulation flow path passing through the bathtub chamber wall W is interposed.

That is, as shown in FIGS. 1 and 3, the bath water circulation flow path includes a bath water suction vibrator 10 for sending bath water from the bubble generating bathtub A to the circulation pump P, and from the circulation pump P. It has a groove bottom with a bath water bullet feed pipe 11 for sending bath water to the bathtub A.

The bath water suction vibrator 10 has one end connected to the suction port 111 opened at the bottom of the bathtub body 1, and the other end communicated to the water intake port of the circulation pump P to suck the bath water into the circulation pump P. On the other hand, the bath water bullet feed pipe 11 communicates one end with the water outlet of the circulation pump P, and connects the jet nozzles 2, 2.
, 3, 3, 4, and 4, the other ends thereof are connected in communication with each other.

Moreover, the above-mentioned suction port 111 is provided at a lower position than the foot side/dorsal side jet nozzles 2, 2, 3.3.

In addition, a pump drive motor M that drives the circulation pump P
As shown in FIG. 4, an inverter E is interposed between the inverter E and the control unit C, and the rotation speed of the circulation pump P is controlled by changing the output frequency of the inverter E. The discharge amount can be changed smoothly and reliably.

In addition, a pressure detection sensor 48 is attached to the middle part of the bath water suction vibrator 10 (which can also be the suction side in the circulation pump P), as shown in FIG. In addition to detecting the amount, that is, the water level, the pressure of the bath water sucked into the circulation pump P through the bath water suction pipe IO can be detected.

Based on the water level level measured by the output from the pressure detection sensor 48, the control section C controls the start and stop of the blow operation, antifreeze operation, filter cleaning operation, and automatic filter cleaning operation. It's bottomed out.

The details of each of these operations are the same as those described in Japanese Patent Application No. 1-73367 previously filed by the present applicant.

In addition, as shown in FIG. 4, 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 pumped through the vibrator 11. The detection results are sent to the control unit C to control blow operation, antifreeze operation, filter cleaning operation, and automatic filter cleaning operation.

By using such bath water temperature detection sensor T, when the hot water supply does not meet the specified water temperature, the control unit C starts blowing operation, anti-freezing operation, permeator cleaning operation, and automatic filter cleaning operation. I'm trying not to.

In addition, the air intake part 5 and each jet nozzle 2.2, 3 described above are
, 3, 4.4, as shown in FIGS. 1 and 5, intake pipes 12a, 12b, 12c are interposed between It is connected to each jet nozzle 2, 2, 3.3.4.4.

Then, by using the negative pressure generated when the bath water is spouted from each spout nozzle 2, 2, 3, 3, 4.4, the operation panel section 6, which will be described later,
The air taken in through the air intake port 6a provided at the top and the air intake section 5 connected to the lower part of the operation panel section 6 is passed through the intake pipes 12a, 12b, and 12c to each of the jet nozzles 2, 2, 3, 3.4. .4, and the bath water mixed with air bubbles can be spouted into the bathtub body 1 from each spout nozzle 2, 2, 3, 3, 4.4.

Further, as shown in FIGS. 1 and 3, an operation panel section 6 is provided near the bathtub body 1, and the operation of the bubble-generating bathtub A can be performed using the operation panel section 6. I'm trying to make it possible.

Note that the amount of mixed air is controlled by the operation of the motor M2 for opening and closing the valve body for adjusting the amount of air bubbles.

In FIG. 1, 30b is an infrared receiving sensor provided on the operation panel section 6, which receives infrared rays emitted from the remote controller 30. 30c is a reception indicator lamp provided on the operation panel section 6, and 30゛ is a wall holder for the remote controller 3゜.

[Structure 1 of Spout Nozzle Next, the spout nozzle 2, 2.3°3.
4.4 will be described in detail with reference to the accompanying drawings, particularly FIGS. 5 to 11.

The foot side, dorsal side, and ventral side jet nozzles 2.2.3, 3, and 4.4 have the same configuration and are configured to automatically change the jet amount and jet pressure of bath water. Hereinafter, the structure of the ventral side jet nozzle 4 will be explained based on FIGS. 5 to 11.

(Overall configuration of the jet nozzle) As shown in FIG. 6, the foot jet nozzle 4 is essentially a cylindrical nozzle that is cantilevered to the foot jet nozzle connection port 1g of the bathtub body l. Inside the casing 20, there are: (1) a jet forming section 50 that forms the bath water flowing in from the bath water bullet feeding vibrator 11 into a jet; (2) mixing of the IJF fluid layer state field from the jet forming section 50 by the ejector effect and turbulence; an air mixing section 70 that mixes air by utilizing the air mixing effect; ■ a throat section 59 that determines the spouting direction of the bubble-mixed bath water spouted from the air mixing section 70 into the bathtub body l; ■ jet flow formation. Valve body 2 for regulating the ejection amount forming a part of the section 50
2. A motor gate for opening and closing the valve body for the nozzle that moves forward and backward; ■ Electrical insulation measures and structure for the bathtub body l such as the water leak sensor 23V; ■ Connecting to the motor for opening and closing the valve body for the nozzle, etc. power supply
It is constructed by arranging an electrical connection VTT14 structure for the @ section.

■Furthermore, in order to facilitate inspection and repair, the jet nozzle 4 according to the present embodiment includes a throat portion 59, an air mixing portion 70, a jet flow forming portion 5o, and a nozzle valve from the nozzle casing 20 described above. Another feature is that the body opening/closing motor and the electrical connection structure can be integrally removed from the bathtub body.

Hereinafter, the ejection nozzle 4 having the above basic configuration will be explained in Figs.
Each component will be explained with reference to FIG.

(Nozzle casing) As shown in FIG. 6, the nozzle casing 2o is formed from a long cylindrical body disposed horizontally, and has a female threaded portion 20a formed on the inner surface and a flange portion 2 at the end.
0b and the bathtub mounting portion 20c.
An intake pipe connection part 20e (see Fig. 8) which is connected to the rear of the intake pipe connection part 20e and has an air inflow cylinder part 20d on the outer peripheral surface; Part 2
0f (see Fig. 7), and a valve body 2 for adjusting the amount of ejection, which is formed at the rearmost part and will be described later.
2, and a motor mounting part 20h for mounting a motor for opening and closing the valve body for the nozzle that moves forward and backward.

Bathtub body 1 of nozzle casing 20 having such a configuration
The mounting structure will be explained below.

In FIG. 6, lh is a ring-shaped gasket fitted around the periphery of the leg side jet nozzle connection port Ig.

Reference numeral 11 denotes a nozzle mounting cylinder that extends from the inside to the outside of the bathtub main body l by penetrating the jet nozzle connection port tg to which the ring-shaped gasket 1h is attached. The inner end is provided with an enlarged diameter flange portion 1j, and the outer peripheral surface of the outer end of the bathtub is provided with a male tapered portion 1k.

The nozzle mounting cylindrical body 11 presses the end face of the enlarged diameter flange portion 1j against the inner surface of the ring-shaped packing lh, and connects the male threaded portion 1k to the nozzle casing 20.
It is screwed into a female threaded portion 20a provided on the inner surface of the bathtub attachment portion 20c in a tight state.

This screwing allows the bathtub attachment part 20c of the nozzle casing 20 to be firmly and watertightly attached to the lower part of the front wall of the bathtub body l.

Further, the bathtub attachment portion 20c is substantially hidden by a decorative cover 26, which will be described below.

That is, the decorative cover 26 consists of a bathtub-side flange portion 26a having a size that can hide the enlarged diameter flange portion 1j of the nozzle attachment cylinder 1i, and a cylindrical portion 26b passing through the spout nozzle connection port 1g. A male tapered portion 26c is formed on the outer peripheral surface of the shaped portion 26b.

Then, connect this male threaded portion 26c to the nozzle casing 20.
A female threaded portion 20/! formed on the inner circumferential surface of the front end of the ! It is removably screwed onto the

Further, the rear end of the decorative cover 26 allows a throat fixing member 25, which will be described later, to be (supported) within the nozzle mounting cylinder 11.

Next, the configuration of the intake pipe connecting portion 20e provided behind the bathtub attachment portion 20c of the nozzle casing 20 will be described.

As shown in FIGS. 6 and 8, the nozzle casing 20
The air inflow cylinder part 20d protruding from the outer peripheral surface has a female threaded part 20i on its inner surface, and can be threadedly connected to one end of the intake vibe 12a. Note that 20s indicates an auxiliary air inflow cylinder.

Furthermore, as shown in FIGS. 6 and 8, the intake pipe connecting portion 20e has an air inlet 20j formed therein, and through the air inlet 20j, the air is removed by the ejector effect and turbulence. Utilizing the mixing effect, it can be mixed into the jet bath water flowing through the air mixing space 21d formed in the front portion 21g of the valve seat forming cylinder 21, which will be described later.

In addition, in FIGS. 6 and 7, 20. 1 shows a connection part for a hot water bullet conveying pipe, and one end of a hot water bullet conveying vibrator 11 is connected in a watertight manner and detachably to the bath water inflow cylinder part 20f of the connecting part 20. , a bath water inlet 20k is formed inside thereof.

With this configuration, the bath water from the bath water bullet conveying pipe 11 passes through the bath water inlet 20k, and passes through the valve seat forming cylinder 2, which will be described later.
The bath water flows into the bath water inflow space 20P formed at the rear part of the bath water.

In addition, in the figure, arrow n indicates the inflow direction of bath water.

Next, the valve driving device mounting part 20h provided at the rearmost part of the nozzle casing 20 will be explained. As shown in FIG.
Further, the enlarged diameter extension part 20- cooperates with a lid body 2On connected to its rear end in a watertight manner, and has a nozzle valve opening/closing operation motor M1, etc., which will be described later, inside thereof. A motor storage space 20Q is formed in which the motor is stored in a sealed state.

(Throat Portion) Next, the specific configuration of the throat portion 59 will be described with reference to FIG. 6.

The throat part 59 is substantially arranged in the front part of the nozzle casing 20, and includes a throat 24 having a jet flow path formed therein, and a throat fixing member 25 that supports the throat 24 in a swing-adjustable manner. , the front portion 21. of the valve seat forming cylinder 21 disposed in the center of the nozzle casing 20. The throat concave support surface 21a is formed in the throat concave support surface 21a.

The throat 24 has an outer circumference formed by a spherical throw 4 base 24a that is supported in the throat concave support surface 21a of the valve seat forming cylinder 21 so as to be swingable in vertical and horizontal directions, and a throat 4 base 24a whose outer circumference is supported by a throat base 24a. The throat tip 24b is formed from a cylindrical throat tip 24b whose diameter is further reduced, and the throat tip 24b can be manually oscillated in any direction up, down, left, or right about the base 24a.

Moreover, since a certain sliding resistance is provided in advance between the outer peripheral surface of the throat base 24a and the throat concave support surface 21a of the valve seat forming cylinder 21, the throat 24 can be moved to any swing angle position. can be retained.

Furthermore, in the present invention, a swing angle regulating stopper 60 is attached to the inner surface of the decorative cover 26, and the stopper 60 is configured to regulate the direction in which the bath water is spouted from the throat 24, particularly the direction in which the bath water is spouted upward. ing.

That is, the swing angle regulating strike, par 60, is as shown in Fig. 6, 6b.
As shown in the figure and FIG. 6c, it is formed from a ring body 60a made of an elastic rubber material or synthetic resin material, and is tightly attached to the inner circumferential surface of the cylindrical portion 26b of the decorative cover 26. .

The ring body 60a has a thick throat upward oscillation angle regulating part 60b in its upper part, and the lower surface 60c of the engaging part 60b is, as shown in FIG. 6b, when viewed from the front. If it is, it is horizontally distracted.

Therefore, as is clear from Fig. 6, the upward swing angle of the throat 24 can be controlled within the safe swing angle, and strong bath water can be prevented from directly hitting weak people (children and the elderly). The safety of bathers can be ensured by preventing as much as possible accidents such as a weak person tripping and falling.

On the other hand, regarding the downward swing angle of the throat 24, there is no need to consider the above-mentioned upward swing angle for safety, so the throat downward swing angle regulating portion is formed at the lower part of the ring body 60a. The upper surface of 60d is curved downward four times as shown in FIG. 6b, and the throat 24 can swing downward at a sufficient angle of inclination.

Further, the throat fixing member 25 is attached to the nozzle casing 20
The decorative cover 26 is held at a predetermined position on the inner peripheral surface of the front portion thereof via the rear end of the decorative cover 26 and the fixing ring 28.

(Air Mixing Unit) Next, the configuration of the air mixing unit 70 will be specifically described with reference to FIGS. 6 and 8.

As described above, the intake pipe connecting portion 20e of the nozzle casing 20 has an air inlet 20j formed therein, as shown in FIGS. 6 and 8.

On the other hand, the central reduced diameter portion 21b of the valve seat forming cylinder 21, which is disposed at a position corresponding to the intake connecting portion 20e, is provided with a plurality of inner air inflow ports 21c, as shown in FIG. .

An annular air communication path 21e is formed between the nozzle casing 20 and the valve seat forming cylinder 21.

With this configuration, air is passed through the air inlet 20j provided in the nozzle casing 20, the annular air communication path 21e, and the inner air inlet 21c provided in the valve seat forming cylinder 21↓, to prevent the ejector effect and turbulence. Utilizing the mixing effect of the valve seat forming cylinder 21, the air can be mixed effectively and uniformly from the entire circumference into the jet bath water flowing in the large space 21d formed in the valve seat forming cylinder 21.

Note that m indicates the air inflow direction.

(Jet Formation Section) Next, the configuration of the jet formation section 50 will be specifically described with reference to FIGS. 6 and 7.

As is clear from FIG. 6, the jet flow forming section 50 is substantially comprised of a jet flow forming channel 27 provided at the center of the rear wall 21i of the valve seat forming cylinder 21 disposed within the nozzle casing 20.
, a valve seat 21 formed in the same flow type flow path 27 [and a jet f adjustment that approaches and separates from the valve seat 21f to adjust the opening/closing amount (adjusts the jet amount and jet pressure) of the jet flow forming flow path 27. valve body 22
and a front surface of a motor mounting block 29 that supports the valve body 22 so as to be movable forward and backward toward the valve seat 21f.

First, the configuration of the jet flow regulating valve body 22 will be explained.As shown in FIG.
The valve seat 21f formed in the jet nozzle 2 is moved forward and backward toward the valve seat 21f formed in the jet nozzle 2 to form a jet bath water in the jet flow forming channel 27. It is also possible to adjust the amount of jet bath water mixed with bubbles spouted from the bath 24.

The ejection UPI node valve body 22 is firmly connected to the tip of a valve body support rod 23d of a nozzle valve body opening/closing operation motor M1, which will be described later, via an inserter 22a.

The valve body 22 also has a valve seat 21f on its tip side! A conical portion 22b is formed that bulges out while gradually decreasing its diameter in this direction. Such a conical portion 22b can generate a linear rod-shaped bath water jet flow in the jet flow forming channel 27, and the ratio of jet pressure to jet amount is relatively high, resulting in a spot blow having an acupressure effect. can be obtained easily.

Next, squirt! To explain the watertight structure provided around the regulating valve body 22, the tip of a bellows-shaped waterproof cover 22c is integrally connected to the rear part of the jet amount regulating valve body 22, and the base end of the waterproof cover 22c is motor mounting block 2
9 through an O-ring 22d.

Further, a cylindrical waterproof cover 22e is provided concentrically around the jet amount adjusting valve body 22.
e has its base end attached to the motor attachment block 29, and supports the ejection amount adjusting valve body 22 in a slidable manner on the inner circumferential surface of an annular projection 22f provided at its distal end.

Further, as shown in FIG. 6, an O-ring 21h is interposed between the inner peripheral surface of the nozzle casing 20 and the outer peripheral surface of the rear wall 211 of the valve body forming cylinder 21.

Due to the presence of the O-ring 21h, the bath water inflow space 2
From 0p, the bath water enters the air communication path 21e through the gap between the inner circumferential surface of the nozzle casing 2° and the outer circumferential surface of the rear wall 21i of the valve body forming cylinder 21, and enters the air communication path 21e.
By forming a water film on the interface between the air inlet 20j and the air inlet 20j, it is possible to reliably prevent the air from flowing into the aeration space 21d.

(Motor for opening/closing operation of valve body for nozzle) Next, to explain the configuration of the motor for opening/closing operation of valve body for nozzle, the cylindrical motor casing 23 forming the outer shell of the motor M1 is shown in FIGS. As shown in Figure 9,
It is detachably attached to the rear surface of the motor attachment block 29.

A cylindrical coil 23a is provided in the motor casing 23 concentrically with the nozzle casing 2o, a cylindrical magnet 23b is provided in the coil 23a, and by exciting the coil 23a, the magnet 23
b can be rotated in forward and reverse directions.

In addition, there is a cylindrical rotor (2) inside the magnet 23b.
3c are attached concentrically and integrally, and the rotor nut 23c is rotatably supported by a bearing 23e, and a valve body support rod 23d, which has a valve body 22 for adjusting the jet at its tip, is slid forward and backward in the rotor nut 23c. Insert freely and
I support it.

A spiral rotor-side ball groove 23k is formed on the inner circumferential surface of the rotor nut 23c, while a helical iron-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 23. 23-, and a plurality of balls 23n are interposed between the rotor nut side ball groove 23 and the rond side ball groove 23 which are opposite to each other so as to be freely transferable.

Furthermore, 23g represents the rotational movement of the rotor nut 23c,
In order to convert the valve body support rod 23d into a linear motion,
This is a rotation restriction piece that restricts rotation of the valve body support rod 23d.

In this embodiment, the rotation regulating piece 23g is formed by a ball that is fitted and held by a screw 23y into a pair of grooves 23x provided at 180° opposing positions on the rear outer peripheral surface of the valve body support rod 23d. It is formed.

With this configuration, when the motor gate for opening/closing the valve body for the nozzle is energized based on the drive output from the control unit C, the sixth
As shown in the figure, the rotor nut 23c rotates together with the magnet 23b, and in conjunction with the rotation of the rotor 7) 23C, the valve body support rod 23d, whose rotation is regulated by the rotation regulating piece 23g, advances and retreats to support the valve body. The spouting amount and jetting pressure of bath water into the bathtub body 1 can be adjusted by moving the jetting amount adjusting valve body 22 attached to the tip of the spout/throat 23d toward and away from the valve seat 21f.

In the operation of the jet nozzle 2, the opening/closing amount of the jet flow forming channel 27 corresponds to the amount of movement of the valve body support rod 23d, and the amount of movement of the valve body support rod 23d corresponds to the amount of movement of the valve body reference position (for example, It is proportional to the number of times a voltage pulse is applied to the motor for opening and closing the nozzle valve body from the fully closed position, which is the maximum advanced position of the valve body 22.

Therefore, by controlling the drive pulse amount of the motor for opening and closing the nozzle valve body by the control unit C, the amount of opening and closing of the jet flow forming channel 27, that is, the amount of hot water spouted from the spout nozzle 2, is adjusted accurately and finely. It is possible to finely adjust the amount and pressure of hot water jetted into the bathtub body l.

Further, the nozzle valve body opening/closing operation motor M1 may be any motor as long as it can move the jet regulating valve body 22 forward and backward steplessly over a minute distance to finely adjust the jet amount and jet pressure of the bath water. In addition, piezoelectric actuators, ultrasonic motors, etc. can also be used.

Furthermore, a valve drive detection sensor S1 is provided at the rear end of the valve body support rod 23d to detect whether or not the nozzle valve body opening/closing operation motor is operating normally.

Then, the sensor S1 detects that the valve body support port 23d is at the reference position (for example, the valve body support port 23d is 23d, when the nozzle moves backward a certain distance from the maximum advanced position (i.e., the fully closed position), a sensor output is output, and based on the sensor output, the control unit C confirms the normal operation of the nozzle valve body opening/closing operation motor H3. Then, blow operation control including subsequent valve body opening/closing control can be started.

On the other hand, if the above-described valve drive detection sensor S does not output an ON output even when the operation start switch is turned on, the control unit C determines that an abnormality has occurred in the nozzle valve opening/closing motor M1. , making all types of operation impossible thereafter.

Various types of sensors can be used as the valve drive detection sensor Sl, but in this embodiment, a Hall element 23i attached via a bracket 23K to the inner surface of the cover plate-cum-substrate 23q forming the rear wall of the motor casing 23 is used. and,
Valve body support rod 23d facing the Hall element 23i
It consists of a magnet piece 23j attached to the rear end position.

(Electrical insulation measures and structure for the bathtub body such as water leak sensor) Furthermore, in this embodiment, as an electrical insulation measure to reliably prevent electrical leakage from the jet nozzle 2 to the bathtub body 1, The following means or structures are adopted.

First, as shown in FIGS. 6, 7, and 10, the motor casing 23 of the nozzle valve opening/closing motor M1 is
A water leak sensor 23ν is attached to the outer surface of the lid body/substrate 23q provided at the rear of the lid body.

Therefore, even if water should enter the motor storage space 20q that houses the old nozzle valve opening/closing motor, the water leak sensor 23V will immediately detect this and stop the blowing operation. , all jet nozzles 2, 2. 3, 3
, 4.4 can be stopped, and a nozzle abnormality signal can be output to the operation panel section 6 side.

Further, as shown in FIGS. 10 and 11, the motor casing 23 of the motor M1 for opening/closing the valve body for the nozzle is made of ABS resin with chrome plated on the front and back surfaces, that is, on both sides.
A current collecting film 8o made of black is formed, and the current collecting film I
IIgo is connected to the grounding terminal 81 of the grounding cord h connected to the lid body/substrate 23q.

With this I, even if water floods into the motor storage space 2Oq, it can be connected to the ground cord h of another jet nozzle through the ground cord h, so that it can be grounded.
It is possible to reliably prevent electricity from flowing from the jet nozzle 2 to the bathtub body 1.

Further, as shown in FIG. 6, a pair of O-rings 29a and 29b are interposed between the outer circumferential surface of the motor mounting block 29 and the inner circumferential surface of the nozzle casing 20 with an interval in the axial direction. There is.

The O-rings 29a and 29b can reliably prevent bath water from entering the motor storage space 209 from the bath water inflow space 20p.

In addition, in the configuration of the jet nozzle 2 shown in FIG. 6, a decorative cover 26, a nozzle mounting cylinder 1i for attaching the decorative cover 26, and a motor M1 for opening and closing the valve body for the nozzle.
Except for all other components of the jet nozzle 2, i.e., the nozzle casing 20. Valve seat forming cylinder 21. The motor mounting block 29 and the like are made of a non-metallic material, preferably a resin with high insulation properties.

Therefore, from this point of view as well, it is possible to reliably prevent electrical leakage from the motor for opening and closing the nozzle valve body to the bathtub body 1.

In this embodiment, the throat 24, decorative cover 26, etc.
It is made of metal, emphasizing the sense of mass that metal has.

Furthermore, as shown in FIG.
The other end of the cord protection cable 23s on which the cord protection cable 23s is connected is connected to the control section C and the power source in the 41 function unit 9, whose humidity is kept low by a built-in motor cooling fan.

Therefore, since the humidity inside the functional unit 9 is kept low by the built-in motor cooling fan, the air conduction pipe 2
3s-1, the humidity in the motor storage space 2Oq is also kept low, and the electrical insulation of the jet nozzle 2 can be improved from this point of view as well.

(Electrical connection structure for power supply and control to the nozzle valve body opening/closing motor, etc.) As shown in Figures 6 and 9, the electrical connection structure for power supply and control to the nozzle valve body opening/closing motor M1, etc. Electrical connection is substantially performed by the edge connector 23p, the M board/substrate 23q, the bendable flat cable 23r folded multiple times, and the multicore cord protection cable 23g.

The edge connector 23p, as shown in FIG.
A socket 23t connected to the dual-purpose board 23q,
Plug 23 that is removably inserted into socket 23t
One end of the plug 23u is connected to the coil 23a of the motor for opening and closing the nozzle valve body.

In addition, as shown in FIGS. 9 and 10, the cover board 23Q has a power supply cord, a control cord, and a total of nine cords a + b + c + d + e + f + g.
+h+1 is connected.

Among these cords, four power supply cords a+b+
c+d is for the drive circuit, and three control codes e, f,
g is for the valve drive detection sensor S, one earth cord h is for the current collecting coating 8o, and one control cord i is for the water leak sensor 23v.

Further, as shown in FIGS. 6 and 13, the bendable flat cable 23r folded multiple times is
The code a+b+C+d+e+f+g+h+' is joined into a flat plate shape, and as described later, when the motor M1 for opening/closing the valve body for the nozzle is taken out from the nozzle casing 2o, it can be extended in an accordion style to facilitate taking out the motor. It is for the purpose of

In addition, the flat cable 23r has a polyester film 23r-1 attached to at least its side surface, thereby reliably preventing twisting of the flat cable 23r when it is expanded or contracted. can.

The electrical connection structure for power supply and control to the above-mentioned nozzle valve body opening/closing motor cover, etc. is a motor formed at the rear of the nozzle casing 20, similar to the nozzle valve body opening/closing motor gate 1. It is stored in the storage space 20q in a watertight manner.

Next, the configuration of the cord protection cable 23s having a multi-core structure will be explained.

As shown in FIGS. 6 and 12, the cord protection cable 23s to the jet nozzle 2 has the aforementioned nine power supply/control cords a+b+c+d+e inside.
, fg are arranged radially or annularly.

Further, the cord protection cable 23s is preferably provided with an air conduction tube 23s1 made of a polypide tube at its center.

One end of the cord protection cable 23s is connected to a control section C disposed within the functional section unit 9, a power source, etc.

Therefore, the motor storage space 20q and the space inside the functional unit 9 are communicated with each other through the air passage pipe 23s-1, and as will be described later, the nozzle valve body opening/closing operation is performed from the nozzle casing 23. motor b etc. can be easily taken out.

Further, the cord protection cable 23s is surrounded by a stainless steel protection spring 23s-2 on its outer peripheral surface, and the protection spring 23s-2 prevents the cord protection cable 23s from being damaged by mice or the like. can.

(Structure for integral removal of components inside the nozzle casing from the bathtub body side) In this embodiment, inspection and repair of the jet nozzle 2, especially the motor gate for opening and closing the valve body for the nozzle, can be easily carried out. Therefore, from the nozzle casing 20, the throat portion 5
9 and an air mixing section 70.

Jet flow forming part 50 and motor gate 1 for opening/closing the valve body for 1 nozzle
and the electrical connection structure can be integrally removed from the bathtub body 1 side.

That is, as is clear from FIG. 6, the nozzle casing 20 has inner diameters D+, Dz, which are divided into four stages from the bathtub body l side toward the nozzle body opening/closing operation motor M1 side.
, Ds, Da, and Ds are gradually decreased.

Then, a motor mounting block 29 with the minimum outer diameter, which has a motor for opening/closing the valve body for the nozzle attached, is installed at the fourth inner diameter D4, and a valve seat with an intermediate outer diameter is installed at the third inner diameter D3. The rear wall 21i of the cylindrical body 21 is installed, and the cylindrical body 2 for forming the valve seat with the maximum outer diameter is installed at the second inner diameter 02.
1 and a throat fixing member 25 are installed.

Therefore, first, the decorative cover 26 can be easily attached to the nozzle mounting cylinder 1 by rotating it in the loosening direction using a wrench or the like.
After removing it from i, if you pull the throat 24, the fixing ring 28 and the throat fixing member 2 will be inserted into the bathtub body 1.
5 can be removed from the nozzle casing 20.

After that, insert your finger into the inner air inlet port 21c of the cylinder body 21 for forming the valve seat, and attach the valve body 22 for adjusting the ejection amount, the motor mounting pro/7 29, and the motor for opening/closing the valve body for the nozzle to the cylinder body 2. M1 can be removed integrally from the nozzle casing 20.

In addition, in the above-mentioned case 1, since the motor storage space 20Q located at the rear of the nozzle casing 20 is kept watertight, the bathtub of the motor mounting block 29 to which the motor for opening/closing the valve body for the nozzle is attached may be left as is. Removal to the main body 1 side is difficult because negative pressure is generated within the motor storage space 20q.

However, in this embodiment, as described above, even if the inside of the motor storage space 20Q is maintained in a watertight state, when the motor M1 for advancing and retracting the valve body is taken out from the nozzle casing 20 into the bathtub body 1, air is released. Cord protection cable 23
Since the air flows into the motor storage space 20q of the nozzle casing 20 through the air conduction pipe 23s-2 provided in the air conduit 23s-2, it is possible to reliably prevent negative pressure from being generated in the space 20q, and to remove the nozzle valve body from the nozzle casing 20. The opening/closing motor can be easily removed.

Similarly, since the old motor for opening and closing the nozzle valve body is connected to the coat protection cable 23s via the flat cable 23r which is folded multiple times, by expanding and contracting the flat cable 23r in an accordion style, The motor M1 for opening and closing the nozzle valve body can be easily removed from and attached to the nozzle casing 20.

In this way, inspection and repair work for the motor for opening and closing the nozzle valve body can be easily and reliably performed.

In addition, after the inspection and repair work is completed, the jet nozzle 2 can be easily assembled by following the above-mentioned procedure in reverse.

On the other hand, since the watertightness of the nozzle casing 20 is sufficiently ensured, the safety of the bather inside the bathtub body 1 can also be sufficiently ensured.

Above, we have explained the jet nozzles 4, 4 on the ventral side, but the jet nozzles 2, 2.3. do,
By regulating the upward spouting angle of bath water, bathers can enjoy the masturbation effect of bath water mixed with air bubbles while maintaining sufficient safety.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing the overall configuration of a bubble generating bathtub equipped with an automatically variable ejection amount nozzle according to the present invention, Fig. 2 is a plan view thereof, and Fig. 3 shows piping and cords between the ejection nozzle and the functional unit unit. FIG. 4 is a block diagram showing the conceptual configuration of the bubble generating bathtub; FIG. 5 is an explanatory diagram showing the air suction structure to the jet nozzle; FIG.
The figure is an enlarged sectional view of the ejection nozzle, Fig. 6a is an explanatory diagram of removal work inside the ejection nozzle, Fig. 6b is a front view of the ejection nozzle equipped with the swing angle regulating stopper, and Fig. 6C is a sectional view of the stopper. Figure 7 is a side view of the jet nozzle, Figure 8 is a side view of the jet nozzle.
Figure 9 is an enlarged sectional view of the motor for opening and closing the nozzle valve body, Figure 10 is a front view of the motor caning, Figure 11 is taken along the line ■-■ in Figure 1. 12 is a cross-sectional view of a coated protection cable, FIG. 13 is a cross-sectional view of a flat cable, and FIG. 14 is a cross-sectional view of a conventional jet nozzle. In the figure, A: Bubble generation bathtub Ml: Nozzle valve opening/closing operation motor P: Circulation pump 1: Bathtub body 2.2, 3, 3, 4, 4: Spout nozzle 9: Functional unit IO: Bath water strength Flow path 11: Bath bomb flow path 20: Nozzle casing 24: Throat 26: Decorative cover 60: Oscillation angle regulation stonoper No. 2 Fig. 5 Fig. 6b Fig. 60 Fig. 8 Fig. 10 Fig. 1 No. 11 Figure 13 Figure 3Q Figure 12

Claims (1)

[Claims] 1. A bath water circulation flow path consisting of a bath water suction flow path and a bath water forced flow path is interposed between the bathtub body and a circulation pump installed outside the bathtub body. The end of the bath water circulation flow path is opened into the bathtub body to form a spout nozzle, and an air intake section is connected in communication with the bath water forced flow flow path, so that the bath water mixed with air bubbles is discharged from the spout nozzle into the bathtub. In a bathtub that generates bubbles that can be sprayed into the main body, a swing angle regulating stopper is attached to the tip of the spray nozzle on the inner side wall of the bathtub body to regulate the upward swing angle of the throat for determining the direction of bath water spouting. Features a jet nozzle structure in a bubble-generating bathtub. 2. A bath water circulation flow path consisting of a bath water suction flow path and a bath water forced flow flow path is interposed between the bathtub body and a circulation pump installed outside the bathtub body. The terminal end is opened into the bathtub body to form a spouting nozzle, and an air intake part is connected in communication with the bathwater forced flow channel, so that bubble-mixed bathwater can be spouted from the spouting nozzle into the bathtub body. In a bubble-generating bathtub, among the foot nozzles, dorsal nozzles, and ventral nozzles provided on the front, rear, and side surfaces of the inner side wall of the bathtub body, the tip of the ventral nozzle is placed above the throat for determining the direction of bath water spouting. A spout nozzle structure for a bubble-generating bathtub, characterized in that a swing angle regulating stopper is attached to regulate the swing angle of the direction.