JP4076181B2 - Jet injection device - Google Patents

Description

  The present invention relates to a jet injection device that generates a jet jet in a bathtub.

  2. Description of the Related Art Conventionally, as a jet jet for a bathtub, a jet jet device that obtains a massage effect by mixing a jet water flow and air by jet jet is known (see Patent Document 1).

JP 2001-145676 A

However, the jet injection device disclosed in the above-mentioned Patent Document 1 is such that air is mixed with a jet water stream and ejected, and is most likely to be generated in a place where air at 40 ° C. to 43 ° C. is present. Legionella bacteria may be mixed, which is not preferable for hygiene.
Furthermore, in the case of a conventional jet of water only, the jet is limited to a narrow range, and it is difficult to generate a jet with a pulsating feeling over a wide range, and a sufficient massage effect can be obtained. There wasn't.

  The present invention has been made in view of such circumstances, and there is no fear of causing Legionella disease, which is preferable for hygiene, and a jet with a pulsating feeling can be obtained even with jet injection of only a water flow that does not mix air, and bathing It is an object of the present invention to provide a jet spray device that provides a suitable massage effect with water pressure received by a person.

In order to solve the above-mentioned problem, the jet injection device of the present invention is a jet injection device that injects pressurized water from a pressurized water supply means into a bathtub as jet injection from an injection port, and the jet injection device has an injection port. It has a nozzle and a main body provided around the nozzle,
The main body has a peripheral wall in front of the nozzle around the nozzle,
A lid member is provided at a front end of the peripheral wall, a chamber is formed by the peripheral wall and the lid member, and a rotating body that can rotate around the center of the nozzle is provided in the chamber.
The lid member has a central communication hole for communicating the front chamber of the rotating body and the front space of the lid member,
Around the rotating body, there is a peripheral communication hole that communicates the base end side space with the front space of the lid member from the rotating body in the chamber,
The rotating body has a support member that is in point contact with the end face on the base end side of the lid member, and a spray water conduction hole that communicates the base end face of the rotating body and the tip end face of the rotating body. ,
The spray water conduction hole is located in front of the nozzle at the base end of the rotating body and is formed to be inclined in the circumferential direction in the rotating body,
Furthermore, it has a rotating body communication hole which connects the base end surface of the rotating body and the distal end surface of the rotating body at a position adjacent to the jet water conduction hole.

  In addition to the above-described configuration, the jet spray device of the present invention is preferably characterized in that the angle of inclination of the spray water conduction hole of the rotating body is in the range of 15 degrees to 25 degrees.

  According to the present invention, there is no fear that legionellosis will occur, which is preferable for hygiene. Furthermore, even if jet injection is performed only with a water flow that does not contain air, a jet with a sense of pulsation rich in variations can be obtained, and the water pressure of the jet received by the bather brings a massage effect.

  Hereinafter, although the jet injection device of the present invention will be described with reference to the drawings, the present invention is not limited to only those described in these embodiments. FIG. 1 is an exploded perspective view of a jet injection device according to an embodiment of the present invention, and FIG. 2 is an assembly vertical cross-section in a state where the jet injection device according to an embodiment of the present invention is installed on a bathtub wall. .

  As shown in FIG. 1, the jet injection device A is provided with a main body 1 having a nozzle at the center and a lid member 2 adapted to the peripheral wall 12 of the main body, and the peripheral wall 12 and the lid of the main body 1. A chamber 3 is formed by the members, and a rotating body 4 that is rotatable around the center of the nozzle is mounted in the chamber 3.

  In the jet injection device according to the present invention, the pressurized water supplied from the pressurized water supply means is ejected from the nozzle, flows into the chamber, the rotating body mounted in the chamber rotates, and from the central communication hole of the lid member. A pulsating jet spouts into the bathtub. Only pressurized water flows into the chamber and air is not mixed.

As shown in FIG. 2, the main body 1 of this embodiment has a nozzle 11 having an injection port at the center. The nozzle 11 has a tip diameter shorter than the diameter of the base end and is tapered, and is provided with a thread groove on the base end side and screwed into the central portion of the main body. In the present embodiment, the nozzle 11 is detachable from the main body 1, but may be formed integrally with the main body.
Pressurized water W supplied from a pressurized water supply means (not shown) is pressurized by the nozzle 11 and jetted into the chamber 3 with vigor.

  The chamber 3 is a cavity formed by the peripheral wall 12 of the main body 1 and the lid member 2. That is, the lid member 2 is fitted with the peripheral wall 12 of the main body 1, thereby forming a chamber 3 that is a cavity. The chamber 3 includes a front space 31 surrounded by the peripheral wall 22 of the lid member 2 and a space 32 on the proximal end side with respect to the rotating body.

A rotating body 4 that can rotate around the center of the nozzle 11 is mounted in the chamber 3. In this embodiment, the rotating body 4 is mounted in a front space 31 of the chamber 3, that is, a space surrounded by the peripheral wall 22 of the lid member 2, and the lid member is supported by the support member 40 that is semi-buried at the center of the front end surface of the rotating body. The center portion 210 is rotatably supported at the end surface on the base end side.
On the base end side, the C-ring 6 is fitted into a fitting groove 60 formed inside the peripheral wall 22 of the lid member 2 to prevent the rotating body 4 from coming off from the front space 31 of the chamber as a stopper. ing.

The rotating body 4 is a cylindrical body made of a thermoplastic synthetic resin, and is formed of an acetal resin in this embodiment. As described above, the support member 40 is semi-embedded at the center of the distal end surface of the rotating body, makes point contact at the base end side end surface of the lid member central portion 210, and rotatably supports the rotating body 4.
The support member is not limited as long as it is a material that does not rust and is in point contact with the end surface on the base end side of the lid member 2. In this embodiment, the material is stainless steel, and the spherical member is fixed to the center of the tip surface in a semi-embedded state, but may be conical.

  Around the rotator 4, a peripheral communication hole 5 is provided that communicates the base end side space 32 and the front space of the lid member 2 with respect to the rotator. In the present embodiment, 16 pieces are provided on the peripheral wall 22 of the lid member 2 at intervals in the circumferential direction. The water in the bathtub flows in from the rotating body of the chamber 3 to the proximal end side space 32 through the peripheral communication hole 5.

  3a is a view showing the distal end surface side of the rotating body 4, FIG. 3b is a view showing the proximal end face side of the rotating body 4, and FIG. 3c is an XX sectional view of the rotating body 4 in FIG. 3a. It is. Inside the rotator 4, a spray water conduction hole 41 through which the pressurized water ejected from the nozzle 11 is conducted is formed so as to communicate from the base end surface of the rotator 4 to the tip surface. In this embodiment, as shown in FIG. 3, two jet water conduction holes 41 are provided, but the number is not limited to two.

  The diameters of the inlets 411 and 411 of the two jet water conduction holes 41 and 41 are larger than the diameters of the outlets 412 and 412, and the inlets 411 and 411 are formed in a tapered shape, and the inlet 411 and the outlet 412 are formed. The communication portions 413 and 413 that communicate with each other are formed to be inclined in the circumferential direction.

  Further, as shown in FIG. 3, a rotating body communication hole 42 is formed in the rotating body 4 at a position adjacent to the jet water conduction hole 41 so as to communicate from the base end surface of the rotating body to the distal end surface. ing. The rotating body communication hole 42 is formed without being inclined in the circumferential direction, unlike the above-described jet water conduction hole 41. The water in the bathtub is also introduced through the rotating body communication hole 42 by flowing backward from the rotating body of the chamber 3 to the proximal end side space 32.

FIG. 4 a is a diagram illustrating a distal end side end surface of the lid member 2, and FIG. 4 b is a diagram illustrating a proximal end side end surface of the lid member 2. FIG. 4 c is a longitudinal sectional view of the lid member 2.
Jet jets jetted from the outlet 412 of the jet water conduction holes 41 and 41 of the rotating body 4 are jetted into the bathtub through the central communication hole 21 provided in the lid member 2. That is, as shown in FIG. 2, since the central communication hole 21 communicates the inside of the rotating body front chamber 311 and the front space of the lid member, the central communication hole 21 is ejected from the outlet 412 to the rotating body front chamber 311 in the chamber 3. The jet jet thus produced is ejected into the bathtub through the central communication hole 21.

The shape of the central communication hole 21 is not particularly limited as long as a closed portion that supports the support member 40 of the rotating body 4 is provided. In this embodiment, as shown in FIGS. 4a and 4b, a closed central portion 210 is provided, and its periphery is divided into three fan-shaped areas, and openings are formed in the fan-shaped areas in the previous and middle stages. It is configured to be provided in a triple with the latter stage.
By adopting such a configuration, the jet flow to which the rotational force is applied by the rotating body has a rotational force and is dispersed and ejected from each fan-shaped opening, and the jet ejected into the bathtub It is possible to give the jet a variety of movements.

  In addition to the configuration of the present embodiment, the shape of the central communication hole 21 may be divided into two regions, or may be subdivided into five fan-shaped regions and seven regions. Moreover, the opening of each region is not limited to the triple structure of the front, middle, and rear stages, and may be a double structure of the front and rear stages, or may be a quadruple or fivefold opening structure, as desired. It can be appropriately selected according to the movement of the jet jet.

Next, a process for generating a jet flow by the jet injection apparatus A according to the present invention will be described.
First, pressurized water supplied from the pressurized water supply means is ejected vigorously from the nozzle 11. The injection from the nozzle 11 is an injection having a narrow linear width because the tip diameter of the nozzle is small and tapered.
The linear narrow jet hits the vicinity of the center on the base end face of the rotating body 4 mounted in the chamber 3 and is jetted through the inlets 411 and 411 of the two jet water conducting holes 41 and 41. It flows into the hole 41. That is, the diameters of the inlets 411 and 411 of the two jet water conduction holes 41 and 41 are larger than the diameters of the outlets 412 and 412, so that they hit the vicinity of the center on the base end face of the rotating body 4. It is possible to divide the jet into two and smoothly flow into the inflow ports of the jet water conduction holes 41 and 41.

  The rotating body 4 mounted in the chamber 3 rotates while flowing jet jet into the jet water conduction holes 41, 41, but around the rotating body 4, the proximal side space 32 and the rotating body in the chamber are separated from the rotating body 4. A peripheral communication hole 5 that communicates with the front space of the lid member 2 is provided, and is further formed in the interior of the rotating body so as to communicate from the proximal end surface to the distal end surface of the rotating body at a position adjacent to the spray water conduction hole 41. By providing the rotating body communicating hole 42, the rotating body can be rotated.

  Furthermore, a preferable jet jet generated by the rotation of the rotating body 4 could be obtained by providing a circumferential inclination on the communication portion 413 of the jet water conduction hole 41.

Table 1 compares the rising height of the water surface by the jet and the body sensitivity of the jet depending on the presence or absence of the surrounding communication hole and the rotating body communication hole. Table 2 shows a comparison between the rising height of the water surface due to the jet and the body sensitivity of the jet when the jet water communication hole is provided with an inclination angle in the jet injection device having both the peripheral communication hole and the rotating body communication hole. It is.
In the experiment, a plate was inserted into the bathtub perpendicularly to the water surface at a fixed distance (5 cm) from the end surface on the front end side of the lid member 2 of the jet spray device installed on the wall surface of the bathtub (water depth 100 mm), and the flow rate was 60 liters / liter. The height of the rising of the water surface (the height of the wave) was measured when the jet hit the inundated portion of the plate into the bathtub at a minute / 0.2 MPa (2 kg / m ² ).
Furthermore, it replaced with the board and entered into the bathtub so that a test subject's back might be in the position of a fixed distance (5 cm) from the end surface by the side of the lid member 2, and the body sensitivity of the jet was investigated.

As shown in Table 1, the rotating body 4 itself did not rotate when there was no surrounding communication hole and no rotating body communication hole. On the other hand, when there is a peripheral communication hole (16 holes) and there is a rotating body communication hole, the height of the swell of the water surface (the height of the wave) is the highest value of 12 cm, and a jet with a pulsating feeling is obtained. Furthermore, the result that the subject's body sensitivity is good (◯) was obtained.
Furthermore, as shown in Table 2, even in the jet injection device having both the peripheral communication hole (16 holes) and the rotating body communication hole, the circumferential inclination angle provided in the communication part 413 of the spray water conduction hole 41 is 0. In the range of degrees to 10 degrees, the rotating body 4 itself did not rotate. On the other hand, a pulsating jet was obtained when the circumferential inclination angle provided in the communication portion 413 of the jet water conduction hole 41 was in the range of 15 to 25 degrees. In particular, when the angle was 20 degrees, a jet with excellent pulsation was obtained and the body sensitivity was the best (最 良).

  Thus, the jet jets ejected from the outlets 412 and 412 of the rotating body 4 are ejected into the bathtub through the central communication hole 21 of the lid member 2. In other words, the jet flow applied with the rotational force by the rotating body 4 is dispersed and ejected from the respective fan-shaped openings while maintaining the rotational force, and is thus ejected into the ejection tub. Has a variety of movements, is not monotonous but rich in pulsation, and has an excellent massage effect.

It is a disassembled perspective view of the jet injection apparatus of one Example of this invention. It is an assembly longitudinal section in the state where the jet injection device of one example of the present invention was installed in the bathtub wall. 3A is a view showing the distal end surface side of the rotating body, FIG. 3B is a view showing the proximal end face side of the rotating body, and FIG. 3C is a cross-sectional view of the rotating body along the line XX. It is a figure which shows the front end side end surface of a cover member. It is a figure which shows the base end side end surface of a cover member. It is a longitudinal cross-sectional view of a cover member.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main-body part 2 Lid member 3 Chamber 4 Rotating body 5 Peripheral communication hole 6C Ring 11 Nozzle 12 Peripheral wall 21 Central communication hole 22 Perimeter wall 40 Support member 41 Spray water conduction hole 411 Inlet 412 Outlet 413 Communication part 42 Rotator communication hole W Pressurized water

Claims (2)

A water jet injection device that jets pressurized water from a pressurized water supply means into a bathtub as jet injection from an injection port, wherein the jet injection device has a nozzle having an injection port, and a main body provided around the nozzle,
The main body has a peripheral wall in front of the nozzle around the nozzle,
A lid member is provided at a front end of the peripheral wall, a chamber is formed by the peripheral wall and the lid member, and a rotating body that is rotatable around the center of the nozzle is provided in the chamber.
The lid member has a central communication hole that communicates between the front chamber of the rotating body and the front space of the lid member,
Around the rotating body, there is a peripheral communication hole that communicates the base end side space with the front space of the lid member from the rotating body in the chamber,
The rotating body has a support member that is in point contact with the end face on the base end side of the lid member, and a spray water conduction hole that communicates the base end face of the rotating body and the tip end face of the rotating body. ,
The spray water conduction hole is located in front of the nozzle at the base end of the rotating body and is formed to be inclined in the circumferential direction in the rotating body,
Furthermore, the jet injection apparatus characterized by having a rotating body communication hole that connects the base end surface of the rotating body and the distal end surface of the rotating body at a position adjacent to the jet water conduction hole.   2. The jet spray device according to claim 1, wherein the angle of inclination of the spray water conduction hole of the rotating body is in the range of 15 degrees to 25 degrees.

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