JP2830059B2 - Air intake structure of air intake in bubble generating bathtub - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Industrial Field of the Invention The present invention relates to an air suction part structure of an air intake part in a bubble generating bath.

(B) Conventional technology Conventionally, as described in Japanese Patent Application Laid-Open No. Sho 59-135058, a bubble-generating bathtub sucks hot water between a bathtub main body and a circulating pump installed outside the main body. A hot-water circulation channel consisting of a pipe and a hot-water bath is provided, and an air intake section is provided in the middle of the hot-water pipe. There is a type in which hot water is blown out from a nozzle into a bathtub main body, and at the same time, air sucked from an air intake portion is mixed, so that a bathwater mixed with bubbles can be blown out.

(C) Problems to be Solved by the Invention As described above, in the bubble generating bath, an air intake is always required, and the air intake is opened at a predetermined position so that air can be sucked. When the air flows into the cylindrical air suction section provided in the flow passage, the green upper end opening of the cylindrical shape is angular, so that turbulence of the air is generated, generating noise and smooth. There is a risk that air intake may be hindered.

Furthermore, since the air flows into the narrow inlet at a high flow velocity, the laminar flow of the air is separated at the corners of the opening green part, and as a result, vortices and turbulent flows may be generated to generate noise.

(D) Means for Solving the Problems According to the present invention, a bath water circulation flow path comprising a bath water suction pipe and a bath water high-pressure pipe is provided between a bathtub body and a circulation pump installed outside the bathtub body. The end of the bath water strong feeding pipe is opened to the inside of the bathtub body as a plurality of jet nozzles, and the air intake part is connected to the same bath hot water feeding pipe,
In the bubble generating bathtub configured to be able to blow the bubbled bath water into the bathtub body from the above-mentioned blowing nozzle, a tubular air suction portion is provided in the air flow passage of the air intake portion, and the upper end opening of the air suction portion is provided. It is an object of the present invention to provide an air suction part structure of an air intake part in a bubble generation bath having a substantially tapered portion.

(E) Function / Effect In the present invention, when bathing in the bubble generating bathtub, the operation panel provided in the green portion of the bathtub body is operated to obtain a bubble jet, thereby performing bathing in the bubble bath. In particular, by operating the operation panel unit, air is taken in from the air intake unit, and the bubble-generating bath water jet is operated.

As described above, in the bubble generation bath, the air intake section is provided, and the air intake section is configured to take in air to generate air bubbles. The air flows through a cylindrical air suction portion provided in the air flow passage, reaches the ejection nozzle, becomes bubbles, and is ejected together with the hot water.

In particular, since the cylindrical air suction portion provided in the middle of the air flow passage has a tapered opening peripheral portion, the laminar flow of air is prevented from separating from the wall surface of the opening edge portion. This has the effect of preventing the generation of eddies and turbulence and smoothing the inflow of air, thereby preventing the generation of noise during intake as much as possible. When functioning as a silencing pipe having a function, there is an effect that the silencing effect can be further assisted.

(F) Example First, the overall structure of the bubble generating bath according to the present invention will be described.

(A) shown in FIG. 1 is a bubble generation bathtub according to the present invention, and the bubble generation bathtub (A) is provided on the front and rear walls and left and right side walls of a bathtub body (1) formed in a box shape having an upper surface opening. Foot-side, back-side, and ventral-side spout nozzles (2) with automatically variable spout amounts
A total of six (2), (3), (3), (4) and (4) are provided.

The bathtub body (1) has a flange-shaped edge (1a) having a constant width at the periphery, and the air intake section (5) is formed at the edge (1a).
Are formed at substantially central portions of the left and right side walls, and have vertically elongated recesses (1b) and (1b) each having a substantially V-shaped cross section, and the recesses (1b) and (1b) on the side facing the rear wall (back side). The ventral ejection nozzles (4) and (4) are attached to the inclined surface toward the center of the rear wall.

In addition, the ventral ejection nozzle (4) is provided at a higher position than the other foot / dorsal ejection nozzles (2) and (3), so that the bath water can be reliably supplied to the ventral and chest sides and other parts of the human body. So that you can focus on it.

Further, a pump protection case (6) is provided outside the bubble generation bathtub (A). Inside the case (6), a circulation pump (P) for circulating bath water and a pump (P) are provided. Filter (F) for filtering the bath water circulated by P)
And a pump driving motor (M) for driving the pump (P); a motor for opening and closing the motor (M), a nozzle valve opening / closing operation motor, a bubble opening / closing valve opening / closing motor, and an electric three-way valve (45). And a control unit (C) for controlling the driving of ()).

In addition, a bath water circulation channel is interposed between the circulation pump (P) and the bubble generation bath (A).

That is, the bath water circulation flow path includes a bath water suction pipe (7) for sending bath water from the bubble generation bath (A) to the circulation pump (P), and the bath pump (A) from the circulation pump (P). It is composed of a hot water bath pipe (8) for feeding hot water.

And the bath water suction pipe (7) is a bath water body (1).
One end is connected to a suction port (9) opened at the lower part of the pump, and the other end is connected to a water suction port of the circulation pump (P) so that bath water is sucked into the circulation pump (P). The feed pipe (8) has one end communicating with the water discharge port of the circulation pump (P),
The other ends of the jet nozzles (2), (3), and (4) are connected to each other.

Further, the above-mentioned suction port (9) is provided at a lower position than the foot side / back side ejection nozzles (2) and (3).

An inverter is interposed between the pump driving motor (M) for driving the circulation pump (P) and the control unit (C), and the output frequency of the inverter is changed to change the frequency of the circulation pump (P). By controlling the number of revolutions, the strength and speed of the jet are changed to create many variations of the jet style, thereby improving the enjoyment of the bubble jet.

Further, a pressure detection sensor for detecting the pressure of the bath water to be pumped through the pipe (8) is attached in the middle of the bath hot water pipe (8), and the detection result from the sensor is sent to the control unit (C ), And the control unit (C) sends the jet pressure of the bath water jetted from each of the jet nozzles (2), (3), (4) to the rotation speed of the pump driving motor (M) and the jet nozzles (2). The control is performed by changing the opening / closing amounts of (3) and (4).

A bath water temperature detection sensor for detecting the temperature of the bath water pressure-fed in the pipe (8) is mounted in the middle part of the bath hot water pipe (8), and the control unit controls the detection result from the sensor. (C), and the control unit (C) controls the pump driving motor (M) and the ejection nozzles (2), (3), (4).

As shown in FIG. 1, between the air intake section (5) and each of the ejection nozzles (2), (3), and (4),
The intake pipe (10) is interposed, and the intake pipe (10)
Form a branch pipe (11) from the midway toward each of the ejection nozzles (2), (3), (4), and connect the tip of each of the branch pipes (11) to each of the ejection nozzles (2), (3), (4). ).

Then, utilizing the negative pressure generated at the time of jetting the bath water from each of the jet nozzles (2), (3) and (4), the air taken in from the air intake section (5) is supplied to each branch pipe ( 1
1) Through the inside, each of the jet nozzles (2), (3), and (4) are sucked into each of the jet nozzles (2), (3), and (4). I have.

Further, as shown in FIG. 1, an operation panel (12) is provided at the corner (1a) of the bathtub body (1) at the corner on the foot side. Tub (A)
Can be operated.

In the above-described configuration, the gist of the present invention is that a noise reduction pipe (28) (29) having a diameter smaller than the diameter of the flow passage is provided in the middle of the air flow passage (L) in the air intake section (5). And a sound-absorbing structure in an air intake section of a bubble tub.

Therefore, the operation panel unit (12) integrally formed with the air intake unit (5) will be described first.
2) is formed in a substantially rectangular shape, and is formed on the upper surface so as to have a downward slope toward the inside of the bathtub body (1), and on the uppermost surface of the operation panel portion (12), An opening / closing lid (14) is provided so as to be openable and closable outwardly so as to cover the operation display section (12-1).

(15) shows the pivot of the opening / closing lid (14). The operation display section (12-1) is made of a flexible thin plate made of a synthetic resin, and a push switch mechanism (16) is provided below the operation display section (12-1). The switch mechanism (16) below the switch mechanism is turned on / off by the pressing of the finger, and a desired driving operation is performed.

At the side end of the operation display section (12-1), a connector (16 ') is vertically provided, and the connector (16') is formed so as to protrude downward. The casing is housed together with the mechanism (16), and a lead wire (18) is led out from the connector (16 '), and the lead wire (18) is connected to the control unit (C).

An outer case (19) is provided outside the switch case (17) so as to surround the case (17), and a peripheral portion of the outer case (19) and a switch inside the outer case (19) are provided. A constant interval (S) is held between the outer case (17) and the outer edge (19) of the outer case (19). The air inlet (4) for taking in air into the air intake (5) is provided on the back of the outer case (19).
0) is provided.

 Next, the air intake section (5) will be described.

The air intake section (5) is mainly constituted by an intake case (20) formed in a substantially rectangular box shape. That is,
The upper part of the intake case (20) is open upward, the lower part is provided with an air discharge hole, and an air flow passage (L) is formed inside. The upper edge of the intake case (20) is folded outward to form a flange. (21), the upper part is open, and the air flow passage (L), which is the interior of the intake case (20), is divided into three independent rooms by a vertical partition (22). The first, second, and third intake chambers (23), (24), and (25) are provided.

Each of the intake chambers (23) (2) as the air flow passage (L)
4) (25) functions as a cylindrical air suction portion, and its upper end opening peripheral portion is formed in a substantially tapered shape. In the present embodiment, this air suction portion is configured as a sound deadening pipe. The silencing pipe is used as a cylindrical air suction portion (28) (29), and the upper end opening edge (2
8 ') and (29') are formed in a substantially tapered shape.

That is, the upper part of each intake chamber (23) (24) (25)
An upper partition plate (26) and a lower partition plate (27) are provided horizontally with a fixed interval, and the partition plates (26) and (27) have cylindrical upper air suction portions ( 28) and a cylindrical lower air suction portion (29) are vertically provided, and the upper and lower portions are communicated via the suction portion.

That is, each intake chamber is composed of an upper partition plate (26) and a lower partition plate (2
7), the upper room (23 ') (24') (25 ') and the lower room (2
3 ") (24") (25 ").
Furthermore, the upper air intake part (28) allows the intake case (20)
Is communicated with the upper chamber (23 ') (24') (25 '),
Lower chamber (23 ') (24') (2
5 ') and the lower chambers (23 ") (24") (25 ") are communicated with each other, and each cylindrical air suction portion (28)
(29) extends downward and the lower end is located in the middle of each of the upper and lower chambers.

That is, the cylindrical air suction portions (28) and (29) are provided in the middle of the air flow passage (L), and the cylindrical upper air suction portion (28) also has the lower air suction portion (28). Naturally, the diameter of each intake chamber (23), (24), (25) is also smaller than that of each intake chamber (23), (24), (25). ) (25), the sound waves resonate and resonate with each other to interfere with each other, and cancel each other out to perform a sound deadening function.

As described above, each of the air absorbing portions (28) and (29) is configured to function as an upper and lower sound deadening pipe, and therefore, the air flowing into the air suction portions (28) and (29) flows into the upper end opening portion. The tapered portion of the air-supplying portion smoothly prevents air separation, thereby reducing noise, and reducing noise generated when air is taken in from the air inlet (40) of the air intake section (5). The sound is silenced by the air suction sections (20) and (29) functioning as the air suction section.

Furthermore, the first intake chamber (23) on both sides of the intake case (20)
And at the lower end of the third intake chamber (25),
Third air discharge holes (30) and (31) are provided, and a second intake chamber (24) is provided below the middle of the intake case in the first and third directions.
It extends to a position below the intake chambers (23) and (25),
Left and right air discharge holes (32) and (33) are provided on both outer surfaces at the lower end, and accordingly, the first and third air discharge holes (30) are provided.
As for the vertical positional relationship between (31) and the left and right air discharge holes (32) and (33), the latter is located below the former.

This is such that the intake pipes (10) communicating with the respective air discharge holes are not positioned on the same plane but are positioned vertically so that they do not overlap.

That is, the first and third air discharge holes (30) and (31)
The back side and foot side intake pipes (10-1) and (10-2) communicate with each other, and the pipes (10-1) and (10-2) are connected to the back side and foot side jet nozzles (3) and (2). , And is configured to inhale and send air by an injection function of negative pressure formation by a jet of bath water.

The left and right air discharge holes (32) and (33) communicate with ventral intake pipes (10-3) provided on both sides of the bathtub body (1). The abdominal ejection nozzles (4), (4) communicate with each other, and inhale and supply air by an injection function using a bath water jet from the nozzle.

(20 ') denotes a connector case for housing the connector (16'), and (34) denotes a seal.

In the configuration of the air intake section as described above, the gist of the present invention is that a cylindrical air intake section (28) (29) is provided in the air flow path (L) of the air intake section (5). The upper peripheral edge portions (28 ') and (29') of the upper end are formed in a substantially tapered shape, so that the inflow of air is smoothed to prevent generation of noise and to generate bubbles sufficiently. is there.

An edge frame (36) is formed from the upper end surface to the outer end surface of the flange portion (21). The edge frame (36), the flange portion (21), and the edge portion of the bathtub body (1) are provided. (1a) is the bolt (3
7) and the nut (38) are fixedly connected to each other.
(39) indicates a sealing member provided between the flange (21) and the edge (1a), and (21a) indicates a bolt hole formed in the flange (21).

As described above, the flange (21) is provided on the intake case (20) of the air intake section (5), and the intake case (20) is provided with a mounting hole formed in the edge (1a) of the bathtub body (1). (35) from above, the flange (21) and the peripheral edge of the mounting hole (35) are overlapped, and a sealing member (39) and an edge frame (36) are interposed therebetween to insert the insertion bolt ( 37) is fastened and fixed with a nut (38) inserted from above, so installation is easy and the sealing performance is good, so there is no danger that the bathtub will flow in from the space between the mounting holes (35). In addition, the deformation of the intake case (20) can be prevented.

Further, a peripheral portion of the outer case (19) of the operation panel portion (12) is fitted to an outer peripheral surface of the edge frame (36). Thus, the lower end of the operation panel section (12) is configured to be fitted in this manner and to be integrally connected vertically.

Brackets (41) are provided on both sides of the flange (21) of the intake case (20).
2) Form a recess (42) on both sides of the outer case (19),
The bolt (43) is screwed into the bracket (41) from the recess (42) and the mounting case (20) and the outer case (19) are integrally connected and fixed to operate the air intake section (5). The panel part (12) is configured to be integrated, and (44) shows a lid of the concave part (42), which is fitted into the concave part (42),
Has a sealing function.

Moreover, a large number of air intake holes () for sucking air are provided on the back of the operation panel (12) outer case (19), that is, on the vertical back of the operation panel (12) having an inclined upper surface. 40) is drilled, and the air intake hole (40) communicates with the space between the outer case (19) of the operation panel section (12) and the switch case (17). From the upper open end of the intake case (20) of (5),
Upper air intake (28), upper chamber (23 ') (24') (2
5 '), lower air intake (29), lower chamber (23 ") (24")
(25 ″), the intake air sequentially sucked into the intake pipe (10) is configured to be ejected from each of the ejection nozzles (2), (3), (4) together with the jet bath. ,
In the middle of the air flow passage (L), the upper air suction part (28)
Air is smoothly sucked into the air suction portions (28) (29) because the peripheral edges (28 ') (29') of the upper end opening of (29) are tapered.
It is possible to supply air that is more inhaled and does not hinder the generation of bubbles.

The operation panel section (12) and the air intake section (5) are disposed at one corner on the foot side of the bathtub body (1), and the air inlet (40) for air intake. ) Are open towards the wall and are therefore arranged at a certain height above the bathtub edge surface. This is to prevent the inflow of bath water as much as possible.

[Brief description of the drawings]

FIG. 1 is an overall explanatory view of a muffling structure in an air intake section of a bubble generating bathtub of the present invention. FIG. 2 is a cross-sectional front view of the sound deadening structure of the present invention. FIG. 3 is a sectional side view of the same. FIG. 4 is an explanatory sectional view taken along the line II of FIG. 2; FIG. 5 is a plan view showing an intake case of an air intake section in the sound deadening structure of the present invention. (1): Bathtub body (1a): Edge (5): Air intake part (20): Panel part (28): Upper air intake part (28 '): Upper edge peripheral part (29): Lower air intake part (29 '): Opening edge of upper end

Continued on the front page (72) Inventor Mitsuaki Hashida 2-81-1, Honmura, Chigasaki-shi, Kanagawa Pref. Tochiki Kiki Co., Ltd. Chigasaki Plant (72) Inventor Koichi Uchiyama 2-81-1, Honmura, Chigasaki-shi, Kanagawa T 陶 h 陶(72) Inventor Kenji Moriyama 2-8-1, Motomura, Chigasaki-shi, Kanagawa Prefecture Tochiki Equipment Co., Ltd. Chigasaki Factory (56) References JP-A-2-309952 (JP, A) Hei 1-158553 (JP, A) JP-A-2-211153 (JP, A) JP-A-59-151962 (JP, A) JP-A 2-61282 (JP, U) JP-A 2-61285 (JP) , U) Japanese Utility Model Hei 2-61284 (JP, U) Japanese Utility Model Application Sho 62-21335 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) A61H 23/00 520

Claims (1)

(57) [Claims] 1. A hot water supply pipe (7) and a hot water supply pipe (8) are provided between a bathtub body (1) and a circulation pump (P) installed outside the bathtub body (1). A plurality of bath water circulation passages are provided, and the ends of the bath water strong feeding pipe (8) are opened into the bathtub body to form ejection nozzles (2), (3) and (4). An air intake section (5) is connected to the feed pipe (8) so as to be able to blow out the hot water mixed with bubbles into the bathtub body (1) from the blowout nozzle. A cylindrical air suction section (28) (29) is provided in the air flow passage of the inlet section (5), and the air suction section (28) (2
9) The structure of the air suction part of the air intake part in the bubble generating bathtub in which the upper end openings (28 ') and (29') are formed in a substantially tapered shape.