JP2002162102A - Nozzle unit, nozzle device, and circulation bathtub - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a circulation bathtub, a nozzle device for the circulation bathtub, and a nozzle unit to be simple in exchange of a nozzle and enable prevention of parts from missing during exchange of a nozzle. SOLUTION: The nozzle unit 15 consists of a cylindrical member 21, of which a nozzle case C consists, a front cover 22, and a direct injection nozzle 23 serving as a moving nozzle. The direct nozzle 23 and the nozzle case C are formed into a unit in a manner to be integrally handled. The nozzle unit 15 is removably formed in a unit based on the nozzle device. Namely, the nozzle unit 15 is formed such that its male screw part 24 is engaged with a female screw part 17 of a coupling case 13, and through engagement and disengagement between the male screw part 14 and the female screw part 17, the nozzle unit 15 is mounted and demounted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a nozzle unit,
The present invention relates to a nozzle device and a circulation bath.

[0002]

2. Description of the Related Art Conventionally, a nozzle device 51 as shown in FIG. 6 has been known as a nozzle device in a bubble-generating circulating bath for injecting bath water containing bubbles into the bath.

That is, in the nozzle device 51, an inflow pipe 53 and an air pipe are provided outside the bathtub main body 52 so as to correspond to a through hole 52a formed in the bathtub main body (only a partial cross section of the side wall is shown in FIG. 6) 52. A connection case 55 connecting the pipes 54 is provided. The connection case 5
In 5, a fixed nozzle 56 is fitted in a communication port 53 a with the inflow pipe 53. On the other hand, from the inside of the bathtub main body 52, a cylindrical sheet packing 57 is inserted into the through hole 52a.
A nozzle cover 58 is inserted through the inside of the bathtub main body 52.
9 are applied.

[0004] The front cover 59 has a substantially cylindrical shape, and bath water is spouted in its cylindrical portion 59a.
A direct injection nozzle 60 as a movable nozzle that directly injects in the directional direction 0a is provided. And the direct injection nozzle 6
An O-ring 61 is provided between the outer peripheral surface of the front cover 59 and the inner peripheral surface of the cylindrical portion 58a of the nozzle cover 58. A packing 62 is provided between the two. Therefore, the direct injection nozzle 60 is rotatable while being assembled and supported by the nozzle cover 58 and the front cover 59 via the packing 62.

When using the nozzle device 51,
When a pump (not shown) is operated, bath water is spouted into the connection case 55 through the inflow pipe 53 and the fixed nozzle 56. Then, a negative pressure is generated in the connection case 55, and the air sucked in from the air pipe 54 and the bath water are mixed, and the bath water mixed with the bubbles is directed from the direct injection nozzle 60 in the direction of the injection port 60a. Direct injection. Here, when the bather in the bathtub 52 wants to change the jetting direction of the bubble-mixed hot water jetted from the direct injection nozzle 60,
By inserting a finger into the ejection port 60a of the nozzle 60 and rolling the direct injection nozzle 60 so that the directing direction of the ejection port 60a changes, the bather can freely set the ejection direction of the bath water into the bathtub 52. Can be changed to

On the other hand, as a movable nozzle in the nozzle device 51, a spiral nozzle (not shown) whose ejection direction changes in a spiral shape is known in addition to the above-described direct injection nozzle 60. That is, the spiral nozzle is provided with a plurality of ejection ports, and each ejection port is formed such that its axis is inclined clockwise. Therefore, the spiral nozzle that has received the spout of hot water from the fixed nozzle 56 rotates counterclockwise in the opposite direction to the direction in which the spout is inclined due to the reaction force of the hot water spouted from each spout. Bath water is spouted from the nozzle into the bathtub 52 in a spiral manner.

[0007]

However, when purchasing a bubble generating bath with a nozzle device 51 provided with either the direct injection nozzle 60 or the spiral nozzle as a movable nozzle, a bather in the bath 52 is The movable nozzle (the direct injection nozzle 60) always mounted and set in the bathtub 52
Or, only the jet form of the spiral nozzle) could be enjoyed. Therefore, for example, if a person who owns a bubble generating bath in which the nozzle device 51 provided with the direct injection nozzle 60 is mounted and wants to enjoy the ejection form of the spiral nozzle, the nozzle device provided with the spiral nozzle is used. A new bubble tub must be purchased. Alternatively, the nozzle device 51 shown in FIG. 6 in which the direct injection nozzle 60 is mounted is disassembled, and the direct injection nozzle 60 is removed from the nozzle device 51 and replaced with a spiral nozzle.

However, in this case, the nozzle device 5
After the front cover 59 was removed, it was necessary to remove the direct injection nozzle 60 and newly assemble and support the spiral nozzle. Therefore, the operation of removing and assembling the direct injection nozzle 60 and the front cover 59 is troublesome.
There is a possibility that parts such as the packing 62 interposed therebetween and the O-ring 61 interposed between the direct injection nozzle 60 and the nozzle cover 58 may be lost.

The present invention has been made in view of the above-mentioned circumstances, and provides a nozzle unit, a nozzle device, and a circulating bath in which a nozzle replacement operation is simple and components can be prevented from being lost during the nozzle replacement operation. It is in.

[0010]

In order to solve the above problems, the invention according to claim 1 is a nozzle unit which is detachable from a nozzle mounting portion of a nozzle device provided in a circulation bath. A movable nozzle for changing the direction in which the hot water is jetted into the bathtub, and a nozzle case for rotatably supporting the movable nozzle via a seal member are unitized so as to be integrally handled. Make a summary.

According to a second aspect of the present invention, in the nozzle unit according to the first aspect, the nozzle case has a fixed nozzle having a fixed jetting direction of the bath water with the jetting direction directed toward the movable nozzle. The point is that they are integrated with each other.

According to a third aspect of the present invention, in the nozzle unit according to the first or second aspect, the seal member is interposed between an outer surface of the movable nozzle and an inner surface of a nozzle case. The gist is that the movable nozzle is configured to be slidably engaged with the outer surface of the movable nozzle while being held in engagement with the inner surface of the case.

According to a fourth aspect of the present invention, there is provided a nozzle device attached to a bathtub body of a circulating bathtub, wherein the nozzle mounting portion has a nozzle unit according to any one of the first to third aspects. The gist of the invention is that it is detachably assembled.

According to a fifth aspect of the present invention, the gist of the present invention is that the nozzle device according to the fourth aspect is attached to a bathtub body.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment in which the present invention is embodied in a bubble generating and circulating bath and its nozzle device will be described below with reference to FIGS.

As shown in FIG. 1, a nozzle device 11 according to the present embodiment has a bathtub body (hereinafter, referred to as a bathtub) of a bubble generation and circulation bathtub.
It is called "bathtub". In FIG. 1, only a part of the side wall is shown. A connection case 13 is provided outside the bathtub 12 (on the right side of the bathtub 12 in FIG. 1) so as to correspond to the through-hole 12a. Inside the bathtub 12, a nozzle cover 14 has a cylindrical portion 14a. It is disposed so as to be inserted into the through hole 12a. The nozzle unit 1 is inserted into the cylindrical portion 14a of the nozzle cover 14 from the inside of the bathtub 12.
5 is set detachably.

In this embodiment, as shown in FIG. 2, the internal space of the cylindrical portion 14a of the nozzle cover 14 which is a component of the nozzle device 11 is configured as a nozzle mounting portion S of the nozzle unit 15. I have. Then, the nozzle unit shown in FIG.
Nozzle unit. ) 15 and a nozzle unit (also referred to as a second nozzle unit) 28 shown in FIG. 4 are selectively mounted. Also,
In the following description, when referring to the upstream side and the downstream side, the left side in the illustrated contents of each drawing is referred to as the downstream side, and the right side is referred to as the upstream side.

The connecting case 13 has a substantially cylindrical shape, and as shown in FIGS. 1 and 2, the upstream side opening of the cylindrical portion 13a extends upward so as to extend upward.
6, while a flange 13b is formed on the outer peripheral edge of the downstream opening. And the cylindrical portion 1
At 3a, a female screw portion 17 is formed on the inner peripheral surface of the upstream opening communicating with the inflow pipe 16. Also,
An air pipe 18 is formed integrally with the cylindrical portion 13 a of the connection case 13 so as to extend upward in parallel with the inflow pipe 16 on a peripheral wall portion downstream of a portion communicating with the inflow pipe 16. An air injection port 18a for taking in air into the connection case 13 is formed at a communication portion between the air pipe 18 and the connection case 13.

Next, the nozzle cover 14 has a substantially cylindrical shape, and as shown in FIGS. 1 and 2, a flange 14b is formed at an outer peripheral edge of a downstream opening of the cylindrical portion 14a. The outer periphery of the flange 14b is located in the bathtub 1
The shape of the surface portion facing the inside of 2 is rounded. And the nozzle cover 14 is provided with the bathtub 1.
In a state where the cylindrical portion 14a is inserted into the through hole 12a from the inside of the second case 2, the outer peripheral surface of the cylindrical portion 14a and the connecting case 1
3 and is fitted and fixed to the connection case 13 with a cylindrical sheet packing 19 interposed between the cylindrical case 13a and the inner peripheral surface of the cylindrical portion 13a. In addition, the flange 14 of the nozzle cover 14
b between the inner wall of the bathtub 12 and between the flange 13b of the connection case 13 and the outer wall of the bathtub 12 so as to be along the periphery of the through hole 12a.
0 is interposed.

Next, the first nozzle unit 15 will be described. As shown in FIG. 3, the nozzle unit 15 includes a nozzle case C in which a tubular member 21 and a front cover 22 are integrated, and a direct injection nozzle 23 as a movable nozzle provided in the nozzle case C. Have. The direct injection nozzle 23 and the nozzle case C are unitized so that they can be integrally handled, and are detachably attached to the nozzle attachment portion S in unit units.

An external thread 24 is formed on the outer peripheral surface of the cylindrical member 21 on the upstream side. The external thread 24 is formed so as to be screwable with the internal thread 17 of the connection case 13. As shown in FIG. 3, a fixed nozzle 25 is integrally formed at the upstream end of the tubular member 21. The fixed nozzle 25 has an inner diameter of a spout 25a on the downstream side from the upstream opening. Are formed so as to have a smaller diameter as going toward. An air intake port 21 a for receiving air from the air inlet 18 a of the air pipe 18 into the cylindrical member 21 is formed in the peripheral wall substantially at the center in the length direction of the cylindrical member 21. A step 21b is formed in the downstream opening of the tubular member 21 along the inner peripheral edge thereof.

The front cover 22 has a substantially cylindrical shape. As shown in FIG. 3, a step portion 22b is formed in a circumferential direction on an inner peripheral surface of a substantially central portion of the cylindrical portion 22a. A flange 22c is formed at the outer peripheral edge of the downstream opening of the cylindrical portion 22a, and the outer peripheral edge of the flange 22c is located upstream so as to correspond to the round outer peripheral edge of the flange 14b of the nozzle cover 14. It is curved in the direction. Therefore, as shown in FIG. 1, when the nozzle unit 15 is inserted into the cylindrical portion 14a of the nozzle cover 14 in the nozzle device 11, the nozzle cover 1 is fixed by the flange 22c of the front cover 22.
The surface of the fourth flange 14b is fitted.

The direct injection nozzle 23 has a substantially spherical shape, and the inner diameter of the injection port 23a passing through the center of the nozzle 23 is the same in the axial direction (that is, from the upstream side to the downstream side). Is formed. In a state where the direct injection nozzle 23 is internally supported by the nozzle case C, the O nozzle engaged and held by the step portion 21b of the tubular member 21 is held.
A ring (seal member) 26 and the front cover 22
A ring-shaped packing (seal member) 27 engaged with and held by the step portion 22b is slidably engaged with the spherical outer surface of the direct injection nozzle 23. Therefore, in the state of being housed in the nozzle case C, the direct injection nozzle 23 is rotatably supported via the O-ring 26 and the packing 27.

Further, in the state of being housed in the nozzle case C, the direct injection nozzle 23 is prevented from being displaced in the longitudinal direction of the nozzle case C via the O-ring 26 and the packing 27, that is, the direct injection nozzle 23 is opposed to the fixed nozzle 25. The positioning is maintained so that the target position (distance) relationship does not change. Also, as shown in FIGS. 1 and 3, when the direct injection nozzle 23 is oriented horizontally in the direction of the ejection port 23 a, the ejection port 23 a is coaxial with the ejection port 25 a of the fixed nozzle 25. It is configured to be located at.

Next, the second nozzle unit 28 will be described. As shown in FIG. 4, the second nozzle unit 28 is provided with the first nozzle unit 1 shown in FIG.
5 is different from that of FIG. 5 in that the movable nozzle provided in the nozzle case C is not a direct injection nozzle 23 but a spiral nozzle 29. Another difference is that an annular nozzle holding member 30 having wear resistance is engaged with and held by the step portion 21b of the tubular member 21 instead of the O-ring 26 in the first nozzle unit 15 as a sealing member. I have. In other respects, the first nozzle unit 15
Since the configuration is the same as that of the above case, the configuration of a portion different from the first nozzle unit 15 will be mainly described below, and the same components will be denoted by the same reference numerals, without redundant description. .

As shown in FIG. 4, the spiral nozzle 29 has a substantially cylindrical small diameter portion 29a on the upstream side from the middle in the length direction, and the downstream side from the middle on the downstream side is smaller than the small diameter portion 29a. A large-diameter large-diameter portion 29b is formed, and a tapered surface 29c that gradually increases in diameter from the upstream side to the downstream side is continuously formed on the outer peripheral surface at the boundary between the small-diameter portion 29a and the large-diameter portion 29b in the circumferential direction. A ridge 29d is formed continuously in the circumferential direction at a portion of the large diameter portion 29b on the downstream side of the outer peripheral surface. An inflow port 29 is provided inside the small diameter portion 29a.
e is formed so as to penetrate, and the inside diameter of the inflow port 29e is the same in the axial direction. On the other hand, a plurality of (two in this embodiment) ejection ports 29f are formed inside the large-diameter portion 29b, and each ejection port 29f has its axis line clockwise when viewed from the downstream side. It is formed so as to be inclined.

As shown in FIG. 5, when the spiral nozzle 29 is internally supported by the nozzle case C, the nozzle holding member (sealing member) engaged and held by the step 21b of the cylindrical member 21 is provided. ) 30 is slidably engaged with the outer peripheral surface of the small diameter portion 29a. Similarly, a ring-shaped packing (seal member) 27 engaged with and held by the step portion 22b of the front cover 22 is slidably engaged with the outer peripheral surface of the large diameter portion 29b. Therefore, in the state of being housed in the nozzle case C, the spiral nozzle 29 is supported rotatably via the nozzle holding member 30 and the packing 27.

When the nozzle case C is installed inside the nozzle case C, the spiral nozzle 29 is
In addition, it is positioned and held so as not to be displaced in the length direction of the nozzle case C via the packing 27, that is, so that the relative position (distance) relationship with the fixed nozzle 25 does not change. As shown in FIGS. 4 and 5, the spiral nozzle 29 has an inflow port 29e in a small diameter portion 29a.
Is positioned on the same axis as the ejection port 25a of the fixed nozzle 25.

Next, the operation of the nozzle device 11 according to the present embodiment configured as described above will be described. By the way, in the bubble circulating bath of this embodiment, the nozzle device 11 is used.
The first nozzle unit 15 or the second nozzle unit 28 is selectively mounted on the nozzle mounting portion S in the above. For example, when the bather wants to enjoy the direct injection form among the injection forms of the bath water injected from the nozzle device 11, the first nozzle unit 15 having the direct injection nozzle 23 therein is used, and the spiral shape is used. If one wants to enjoy the jetting form, the second nozzle unit 28 having the spiral nozzle 29 therein is used.

That is, as shown in FIG. 2, the nozzle units 15 and 28 are not mounted while the nozzle cover 14 is fitted and fixed to the connection case 13 from the inside of the bathtub 12 through the through hole 12a. In the state, the internal space of the cylindrical portion 14 a of the nozzle cover 14 (that is, the nozzle mounting portion S) is open toward the bathtub 12. Therefore, from this state, in order to mount and set one of the first and second nozzle units 15 and 28, the nozzle case C of the nozzle units 15 and 28 is gripped and the cylindrical member 21 side is moved to the above-described state. Insert into the nozzle mounting part S. Then, the male screw portion 24 formed at the distal end portion (upstream end portion) of the tubular member 21 is screwed into the female screw portion 17 formed at the connection case 13 side.

Then, the nozzle units 15 and 28 are arranged such that the front cover 22 of the nozzle case C has its flange 22
c, the surface of the flange 14b of the nozzle cover 14 is brought into a fitted state, and the mounting operation of the nozzle device 11 to the nozzle mounting portion S is completed in this state. When replacing the nozzle unit 15 or 28 with the other nozzle units 15 from the mounted state, the male screw part 24 is disengaged from the female screw part 17 by grasping and rotating the front cover 22. The nozzle units 15 and 28 can be easily removed from the nozzle mounting portion S. In addition, the seal member (such as the packing 27) is not removed during the replacement operation.

Therefore, according to the present embodiment, the following effects can be obtained. (1) In the embodiment, the movable nozzle including the direct injection nozzle 23 or the spiral nozzle 29 and the nozzle case C are unitized so as to be integrally handled, and the direct injection nozzle 2
Reference numeral 3 denotes the first nozzle unit 15, and the spiral nozzle 29 is rotatably mounted to the second nozzle unit 28 via a packing 27 as a sealing member. Therefore, it is easy to replace the nozzle units 15 and 28 in order to change the ejection form, and it is possible to prevent the packing 27 from being lost at the time of the replacement, and to further reduce the packing inside the nozzle case C. 2
7 does not break the seal structure.

(2) In the above embodiment, the fixed nozzle 2
5 is integrally formed with the nozzle case C, and a movable nozzle such as the direct injection nozzle 23 is internally supported by the nozzle case C in a state where the relative positional relationship with respect to the fixed nozzle 25 does not change. Therefore, even if the state of the jet of the bath water mixed with bubbles from the upstream fixed nozzle 25 to the downstream movable nozzle is passed through the replacement work of the nozzle units 15 and 28,
There is no change from the spouting condition set optimally in advance.

(3) Each of the nozzle units 15, 28
In the state, the packing 27 is engaged with and held on the inner surface of the nozzle case C, and
As it is designed to be in sliding contact with the outer surfaces of 3, 29,
Even if the movable nozzles 23 and 29 roll, each nozzle 2
It is possible to prevent the bath water from leaking to the outside of the bathtub 12 from the downstream side to the upstream side on the outer surfaces of the baths 3 and 29.

(4) In the above embodiment, the nozzle units 15 and 28 are configured to be detachable from the nozzle device 11 in unit units, and the male screw portions 24 of the nozzle units 15 and 28 are attached and detached at the time of attachment and detachment. It is only necessary to screw or retreat to the female screw portion 17 on the connection case 13 side, so that the work of attaching and detaching the nozzle units 15 and 28 can be simplified.

(5) Each nozzle unit 15, 2
8 is set to the nozzle device 11, a force toward the downstream side is applied to the connection case 13 by the screwing of the male screw portion 24 and the female screw portion 17, while an upstream force is applied to the nozzle cover 14. Since a heading force acts, the nozzle device 11 can be reliably fixed at a position corresponding to the through hole 12a of the bathtub 12.

The above embodiment may be modified and embodied as follows. In the above embodiment, the through hole 12 a is formed in the side wall of the bathtub 12, but the through hole 12 a may be formed in the bottom surface of the bathtub 12.

In the above embodiment, the air pipe 18 is formed integrally with the connection case 13, but the air pipe 18 may be omitted. That is, for example, air may be introduced by a pump (not shown) to generate hot water mixed with air bubbles, and the hot water may be injected into the inflow pipe 16. Further, the present invention may be applied to an ordinary circulating bath which jets only bath water free from bubbles, instead of bath water mixed with bubbles.

In the above embodiment, the packing 27 as a seal member is interposed between each movable nozzle 23, 29 and the front cover 22.
It may be interposed between 29 and the tubular member 21.

In the embodiment, the nozzle device 1
In the attached state of No. 1, the male screw portion 24 of each of the nozzles 23 and 29 was fixed by screwing it into the female screw portion 17 of the connection case 13, but the nozzle units 15 and 28 were fixed.
The upstream portion may be configured as a fitting portion made of a resin material or the like and fitted and fixed to the connection case 13 side.

In the above embodiment, the nozzle cover 14
The nozzle mounting portion S is constituted by the internal space of the cylindrical portion 14a of FIG.
3 to the inside of the through-hole 12a and
May be configured in the internal space of the nozzle.

In the above embodiment, one jet port 23 a is formed in the direct jet nozzle 23, and two jet ports 29 f are formed in the spiral nozzle 29.
The number of jets can be changed to an appropriate number.

[0043]

According to the present invention, the nozzle replacement operation is simple, and parts can be prevented from being lost during the nozzle replacement operation.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a state in which a nozzle unit having a direct injection nozzle according to an embodiment is mounted on a nozzle device.

FIG. 2 is a longitudinal sectional view showing a state in which the nozzle cover is similarly fitted and fixed to a connection case through a nozzle mounting opening of a bathtub.

FIG. 3 is a longitudinal sectional view of a nozzle unit having a direct injection nozzle.

FIG. 4 is a longitudinal sectional view of a nozzle unit having a spiral nozzle.

FIG. 5 is a vertical sectional view showing a state in which a nozzle unit including a spiral nozzle is mounted on a nozzle device.

FIG. 6 is a longitudinal sectional view showing a conventional nozzle device.

[Explanation of symbols]

11: Nozzle device for bubble generation and circulation bathtub, 12: Bubble generation and circulation bathtub, 14a: Cylindrical portion as nozzle mounting portion, 15
... Nozzle unit (first nozzle unit), 21... A cylindrical member constituting a nozzle case, 22... A front cover constituting a nozzle case, 23... A direct injection nozzle as a movable nozzle, 25. Packing as a member, 28: a nozzle unit (second nozzle unit), 29: a spiral nozzle as a movable nozzle,
C: Nozzle case.

Claims (5)

[Claims] 1. A nozzle unit detachable from a nozzle mounting portion of a nozzle device attached to a circulating tub, wherein the movable nozzle is used to change a direction in which hot water is jetted into the tub. Nozzle unit which is unitized so that it can be handled integrally with a nozzle case that rotatably supports through a seal member. 2. The nozzle unit according to claim 1, wherein a fixed nozzle having a fixed jetting direction of the bath water is fixed to the nozzle case with the jetting direction directed toward the movable nozzle. 3. The seal member is interposed between an outer surface of the movable nozzle and an inner surface of a nozzle case, and is slidably engaged with an outer surface of the movable nozzle while being held in engagement with the inner surface of the nozzle case. The nozzle unit according to claim 1, wherein the nozzle unit is configured to perform the following. 4. A nozzle device attached to a bathtub body of a circulating bathtub, wherein a nozzle mounting portion of the nozzle device is provided.
A nozzle device in which the nozzle unit according to any one of the above is detachably assembled. 5. A circulating tub in which the nozzle device according to claim 4 is attached to a tub body.