CN106574458B

CN106574458B - Water spraying device and bath tub device

Info

Publication number: CN106574458B
Application number: CN201580044752.0A
Authority: CN
Inventors: 川上将; 市川雄一郎; 平岩广充
Original assignee: Lixil Corp
Current assignee: Lishu Group Co ltd; Lixil Corp
Priority date: 2014-06-24
Filing date: 2015-06-22
Publication date: 2020-02-21
Anticipated expiration: 2035-06-22
Also published as: JP2016008429A; EP3162969A4; JP6412724B2; WO2015199014A1; EP3162969A1; CN106574458A; CA2972090A1

Abstract

The water jet device is provided with a water jet member (19) having a jet channel (33) formed therein, wherein the jet channel (33) is formed by a jet port (13) for jetting water, a storage chamber (37) for storing water flowing from the upstream side, and a flow restricting flow path (39) for sending the water in the storage chamber (37) to the jet port (13), the water jet member (19) is configured by assembling a lower dividing member (51) and an upper dividing member (53), and the jet port (13), the storage chamber (37), and the flow restricting flow path (39) are defined by both the lower dividing member (51) and the upper dividing member (53).

Description

Water spraying device and bath tub device

Technical Field

The present invention relates to a water jet device for jetting water and a bath device including the water jet device.

Background

Conventionally, a water jet device for jetting a film-like water jet is known (for example, see patent document 1). The water jet device is arranged in the bath and jets water flow from the water jet. The film-like water jet falls in a waterfall shape, and is excellent in aesthetic property, and the water jet falls on the shoulder of the bather to obtain a relaxing effect.

Documents of the prior art

Patent document

Patent document 1: japanese patent No. 4066459

Disclosure of Invention

Technical problem to be solved by the invention

In the water jet apparatus of patent document 1, a water passage path for guiding water to the water jet port is formed inside an apparatus main body, and the water passage path of the apparatus main body is formed of a single member. Further, the apparatus main body may be considered to be integrally formed by metal casting. In general, when a portion having a hollow cross section is integrally formed from a single member, it is difficult to ensure the dimensional accuracy of the inner wall surface thereof, and the surface roughness of the inner wall surface tends to be increased. In particular, when the apparatus main body is integrally formed of a metal casting, since the inner wall surface thereof is a casting surface, the surface is more likely to be roughened. If the surface roughness is high, the water flow passing through the water passage tends to be disturbed, and the appearance may be impaired due to the disturbed shape of the water jet.

In view of the above-described problems, an object of the present invention is to provide a technique for suppressing the dispersion of the shape of the water jet.

Technical solution for solving technical problem

In order to solve the above-described problems, a water jet device according to one aspect of the present invention includes a water jet member having a discharge passage formed therein, the discharge passage including a discharge port for discharging water, a storage chamber for storing water flowing from an upstream side, and a flow restricting passage for sending the water in the storage chamber to the discharge port, the water jet member being configured by assembling a first partition member and a second partition member, and the discharge port, the storage chamber, and the flow restricting passage being defined by both the first partition member and the second partition member.

According to this aspect, when the partition members are detached, the inner wall surface of the discharge channel can be exposed to the external space in the range from the discharge port to the storage chamber. In general, when a portion having a hollow cross section is formed by molding a plurality of members separately from one another, the difficulty of molding the portion in which the inner wall surface is exposed to the external space is reduced, and it is easy to ensure the dimensional accuracy of the inner wall surface. Therefore, the surface roughness of the inner wall surface of the discharge channel is easily suppressed, and the scattering of the shape of the water jet due to the surface roughness is easily suppressed.

The storage chamber may be formed such that a pair of wall surfaces facing each other of the discharge channel are each extended in a direction away from each other from an inlet of the restricted flow channel.

In this way, the water pressure of the water in the storage chamber is reduced, the flow rate of the water is also easily reduced, and the water can be more effectively rectified to be uniform in flow rate in the storage chamber.

The water ejecting member may further include a space holding portion that is disposed in the ejection passage and holds a space between the pair of wall surfaces facing each other of the ejection passage.

In this way, even when a load that narrows the interval of the discharge passage is applied to the water jet member, the interval can be maintained, and thus the scattering of the shape of the water jet flow can be easily suppressed.

The space holding portion may be disposed in the storage chamber.

In this way, even if the water flow is interrupted by the space holding portion, the interrupted water flow is likely to merge at an early stage before reaching the discharge port, and the scattering of the shape of the water jet due to the interruption of the water flow is likely to be suppressed.

The first and second divided members may have a plurality of joint surfaces that abut against each other, and a sealing member that is interposed between the joint surfaces and seals between the joint surfaces.

According to this aspect, the water in the ejection passage can be restricted from leaking to the outside through the joint surfaces.

The first and second partition members may be upper and lower partition members having a shape that vertically partitions the water jet member, the plurality of joint surfaces may be vertically opposed to each other, and the seal member may be disposed in a groove formed in the joint surface of the lower partition member.

According to this aspect, the upper divided member can be assembled to the lower divided member in a state where the sealing member is placed in the groove portion without being bonded, and workability in assembling becomes good.

It is possible that the water emitting member has a positioning structure that positions the first and second divisional members when the first and second divisional members are assembled.

According to this aspect, when the respective divided members are assembled, they can be easily positioned, and the workability at the time of the assembly is improved.

The water ejecting member may have a peripheral wall portion that surrounds the ejection passage from three sides, that is, both sides in the width direction of the ejection passage and an inner side opposite to the ejection port, and the first divided member and the second divided member may be coupled by a plurality of holders arranged at intervals along an inner peripheral wall surface of the peripheral wall portion, the plurality of holders being arranged such that the intervals at the width direction intermediate portion of the water ejecting member are narrower than the intervals at both width direction end portions.

According to this aspect, the interval between the anchors is increased at the middle portion of the water ejecting member to control the number thereof, and the interval between the anchors is decreased at both end portions thereof to effectively resist the bending moment, so that the coupled state of the divided members can be stably maintained.

The first and second divided members may be resin molded articles.

According to this aspect, the casting surface of the metal cast is not formed on the inner wall surface of the discharge passage, and the surface roughness greater than that of the metal cast can be suppressed.

It is possible that the ejection port is formed in a laterally long slit shape, and the ejection passage is formed laterally long in the extending direction of the ejection port.

Another embodiment of the present invention relates to a bath device. The bath device comprises the water spraying device and the bath provided with the water spraying device.

Effects of the invention

According to the present invention, the scattering of the shape of the water jet is suppressed.

Drawings

Fig. 1 is a perspective view showing a usage state of a water jet device according to an embodiment.

Fig. 2 is a configuration diagram showing a water supply system used in the water jet device of the embodiment.

Fig. 3 is a front view showing a water spray device of the embodiment.

Fig. 4 is a sectional view taken along line a-a of fig. 3.

Fig. 5 (a) is a plan view showing the discharge passage of the water jet member according to the embodiment, and fig. 5 (b) is a plan view showing the space holding portion.

Fig. 6 is an exploded perspective view of the water jet device of the embodiment.

Fig. 7 (a) is a side sectional view showing a discharge passage of the water jet member according to the embodiment, and fig. 7 (b) is a view showing a state where an upper side dividing member and a lower side dividing member are disassembled.

Fig. 8 is a sectional view taken along line B-B of fig. 3.

Fig. 9 (a) is a cross-sectional view taken along line D-D of fig. 3, and fig. 9 (b) is a view showing a state in which the upper dividing member and the lower dividing member are disassembled.

Detailed Description

Fig. 1 is a perspective view showing a usage state of a water jet device 10 according to the present embodiment.

The water spray device 10 is used for the bath device 200. The bath device 200 includes a bath 210 in addition to the water spray device 10. An installation surface 217 is provided on the edge 215 of the bath 210. The water jet apparatus 10 includes an apparatus main body 11 provided on the installation surface 217. The apparatus main body 11 is formed in a horizontally long flat shape, and discharges a film-like horizontally long water jet W forward from the discharge port 13.

Fig. 2 is a configuration diagram showing a water supply system 220 used in the water jet apparatus 10.

The water supply system 220 includes a water supply pump 221 provided on the upstream side of the water spray device 10. The water jet device 10 includes a water guide 15 in addition to the device main body 11. The water supply pump 221 is connected to the water conduit 15 via a discharge side conduit 223, and is connected to the bath 210 as a water supply source via a suction side conduit 225. The water supply pump 221 is driven to suck the bath water 211 in the bath 210 through the suction-side conduit 225 and to send the water to the water guide unit 15 through the discharge-side conduit 223. When water is pressure-fed to the water guide 15, the sprinkler 10 discharges the water jet W from the device body 11.

Fig. 3 is a front view of the water jet apparatus 10.

A transversely long slit-shaped discharge port 13 is provided in the front of the apparatus main body 11. The water guide portion 15 is provided in plurality so as to protrude downward from the apparatus main body 11 at intervals in the width direction of the ejection port 13. In the following description, the width direction of the discharge port 13 is referred to as a direction X, a horizontal direction orthogonal to the direction is referred to as a front-rear direction Y, and a vertical direction is referred to as a vertical direction Z. The direction X coincides with the width direction of the ejection channel 33 described later.

Fig. 4 is a side sectional view of the water jet apparatus 10. This figure is a cross-sectional view taken along line a-a of figure 3.

The water guide 15 is inserted through a through hole 229 formed in the installation surface 217. The water conduit 15 has a water conduit 17 formed therein for supplying water to the downstream side, and a discharge-side conduit 223 connected to the distal end thereof. A fixing member 231 such as a nut is attached to a portion of the water conduit 15 protruding to the opposite side of the installation surface 217 by screwing or the like. The apparatus main body 11 is fixed to the bath 210 by sandwiching the bath 210 with the fixing member 231. A seal ring 233 such as an O-ring is interposed between the fixing member 231 and the tub 210.

The apparatus main body 11 includes a water spraying member 19 and an exterior cover 21, and is configured by assembling these components. The water spraying member 19 has: a duct portion 23 having an ejection port 13 formed in the front portion; a top surface portion 25 provided on the passage portion 23; and an illumination mounting portion 27 provided on a front surface of the tunnel portion 23. The upper surface of the top surface portion 25 is flush with the upper surface of the exterior cover 21, thereby constituting the upper surface of the apparatus main body 11. A hollow space 29 is provided between the top surface portion 25 and the passage portion 23. The illumination device 31 is attached to the illumination attachment portion 27. The illumination device 31 projects colored light or white light of a predetermined wavelength forward. These are irradiated to the water jet W, bather, or the like, thereby obtaining a good visual effect.

The exterior cover 21 is detachably attached to the front portion of the water jet member 19. The exterior cover 21 covers the illumination device 31 from above, and also covers both ends 19a of the water jet member 19 in the width direction X from the front (see fig. 3).

The passage portion 23 forms an ejection passage 33 including the ejection port 13 therein. The discharge passage 33 communicates between the upstream water guide passage 17 and the downstream external space 235. The discharge passage 33 has a laterally long shape in the extending direction of the discharge port 13, and is formed by the discharge port 13, a storage chamber 37 described later, and a restricted flow path 39.

A plurality of inlets 35 for feeding water into the storage chamber 37 are formed in the lower wall surface 71 of the discharge passage 33. Water flows from the water passage 17 on the upstream side into the storage chamber 37 through the inflow port 35, and the water is temporarily stored as stored water. The storage chamber 37 is formed such that a pair of a lower wall surface 71 and an upper wall surface 73, which face each other in the vertical direction, of the discharge passage 33 are expanded in a direction away from each other from the inlet 39a of the restricted flow path 39. The lower wall surface 71 and the upper wall surface 73 face each other in a direction Z orthogonal to the width direction X of the discharge channel 33.

The restricting flow path 39 is provided downstream of the storage chamber 37 and communicates the storage chamber 37 and the discharge port 13. The flow restricting passage 39 is formed such that the passage height, which is the interval between the pair of lower wall surfaces 71 and the upper wall surface 73, is smaller than the height of the storage chamber 37. The restricted flow path 39 is formed to have a substantially constant channel height in a range from the inlet 39a to the discharge port 13. The stored water in the storage chamber 37 is sent out to the discharge port 13 through the restricted flow path 39. When the accumulated water passes through the restricted flow path 39, the flow velocity increases due to the restriction, and the water jet W is strongly ejected from the ejection port 13.

Fig. 5 (a) is a plan view showing the discharge channel 33, and fig. 5 (b) is a plan view of a space holding portion 69 described later. This figure is a plan view of a lower partition member 51 described later.

When the dimensions in the width direction X and the front-rear direction Y of the discharge channel 33 are defined as a channel width and a depth, the discharge channel 33 is formed to have a depth dimension smaller than the channel width in a plan view. In addition, the cross section (not shown) of the ejection channel 33 is formed to be longer in the lateral direction than the channel width. The side wall surfaces 33a on both sides in the width direction X of the discharge channel 33 are formed so that the channel width of the discharge channel 33 becomes wider as approaching the discharge port 13 side from the inside of the storage chamber 37.

As shown in fig. 4 and 5 (a), the channel 23 has a lower wall 41, an upper wall 43, a pair of lateral walls 45, and a rear wall 47, and the discharge channel 33 is defined by these inner wall surfaces. The lower wall 41 and the upper wall 43 are provided on both sides of the discharge passage 33 in the vertical direction Z. The pair of lateral wall portions 45 are provided on both sides of the discharge passage 33 in the width direction X. The rear wall portion 47 is provided inside the ejection passage 33 on the side opposite to the ejection port 13. The pair of lateral wall portions 45 and the rear wall portion 47 are provided so as to surround the peripheral wall portion 49 of the discharge channel 33 from both sides and the inside in the width direction X of the discharge channel 33.

Fig. 6 is an exploded perspective view of the water jet device 10.

The water spray member 19 is configured by assembling a lower divided member 51 as a first divided member and an upper divided member 53 as a second divided member. Each of the

split members

51, 53 is a resin molded product, and has a shape divided vertically with the peripheral wall portion 49 of the water ejecting member 19 as a boundary.

Fig. 7 (a) is a side sectional view showing the enlarged ejection channel 33, and fig. 7 (b) shows a state where the

respective partition members

51 and 53 are detached.

Each of the divided

members

51 and 53 has a joint surface 55 facing in the vertical direction Z at the boundary portion. The joint surface 55 surrounds the discharge channel 33 from three sides, similarly to the peripheral wall portion 49. The divided

members

51 and 53 are assembled in a state where the joint surfaces 55 are butted against each other.

The lower dividing member 51 has a first channel defining portion 57, and the first channel defining portion 57 defines the storage chamber 37, the restricted flow path 39, and the discharge port 13 in part. The first passage defining portion 57 is formed by the lower wall surface 71 of the discharge passage 33 and a part of the inner peripheral wall surface 33b of the peripheral wall portion 49. The first channel defining portion 57 is formed in a concave shape that is open at an upper portion from a front end side to an inner side thereof. The upper dividing member 53 also has a second channel defining portion 59, and the second channel defining portion 59 partially defines the storage chamber 37, the restricted flow path 39, and the discharge port 13, respectively. The second channel defining portion 59 is formed by the upper wall surface 73 of the discharge channel 33 and a part of the inner peripheral wall surface 33b of the peripheral wall portion 49. The second path defining portion 59 is formed in a downwardly protruding convex shape in an area S1 extending from the tip end side to a halfway position in the front-rear direction Y. The second path defining portion 59 is formed in a concave shape that opens downward in an area S2 inward from the halfway position in the front-rear direction Y. The discharge port 13, the storage chamber 37, and the restricted flow path 39 are defined by both the first channel defining portion 57 and the second channel defining portion 59.

When the

partition members

51 and 53 are detached, the wall surfaces 71, 73, and 33b serving as the inner wall surfaces of the discharge channel 33 are exposed from the external space 235. At this time, the lower wall surface 71 of the lower partition member 51 and the upper wall surface 73 of the upper partition member 53 are exposed to the outside space 235.

As shown in fig. 5 (a) and 6, a spacer 69, which is a columnar body, is disposed in the storage chamber 37 of the discharge channel 33. The plurality of space holders 69 are arranged at intervals in the width direction X.

As shown in fig. 5 (b), the outer peripheral surface 69a of the spacer 69 is formed in a circular shape in a plan view. In other words, the outer peripheral surface 69a of the space holding portion 69 is formed to streamline the flow of water flowing through the discharge passage 33. Specifically, the upstream portion 69b gradually increases in width as the water flowing through the discharge passage 33 flows downstream (downward in the drawing), and the downstream portion 69c gradually decreases in width as the water flows downstream.

Fig. 8 is a sectional view taken along line B-B of fig. 3. The shape of the lower dividing member 51 shown in this figure corresponds to the cross section of line C-C in fig. 5 (a).

The space holding portion 69 stands on the lower wall surface 71 of the lower divided member 51, and the upper surface thereof is in contact with the upper wall surface 73 of the upper divided member 53. Thus, the space holding portion 69 holds the space between the upper wall surface 73 and the lower wall surface 71 of the discharge passage 33, which are opposed to each other in the vertical direction.

As shown in fig. 3, the water ejecting member 19 has a positioning structure 79, and the positioning structure 79 is constituted by a positioning concave portion 75 and a positioning convex portion 77. The positioning structures 79 are provided at both ends 19a in the width direction X of the water ejecting member 19.

Fig. 9 (a) is a view showing a part of the cross section taken along line D-D in fig. 3, and fig. 9 (b) is a view showing a state where the respective divided

members

51 and 53 are detached. The shape of the lower dividing member 51 shown in this figure corresponds to the cross section of line E-E in fig. 5 (a).

The positioning recess 75 is formed as a bottom hole that opens at the joint surface 55 of the lower partition member 51. The positioning convex portion 77 is provided on the upper dividing member 53 at a position corresponding to the positioning concave portion 75, and forms a protrusion protruding from the joint surface 55.

As shown in fig. 9 (b), when assembling the lower divided member 51 and the upper divided member 53, the operator aligns the divided

members

51 and 53 and inserts the positioning convex portions 77 corresponding to the inside of the plurality of positioning concave portions 75. This makes it possible to easily position the

split members

51 and 53 when they are assembled, and improves workability in assembling.

As shown in fig. 8, the lower partition member 51 is provided with a plurality of accommodating portions 83, and the accommodating portions 83 accommodate fasteners 81 such as screws at positions corresponding to the peripheral wall portions 49. In addition, the space holding portion 69 of the lower partition member 51 is also provided with an accommodating portion 83 for accommodating the retainer 81. Each receiving portion 83 is formed with an insertion hole 85 through which the retainer 81 is inserted. The upper partition member 53 is provided with a screw hole as a mounted portion 87 at a position corresponding to the insertion through hole 85. The distal end portion 81a of the retainer 81 is fixed to the mounting portion 87 by screwing or the like. The respective divided

members

51 and 53 are detachably coupled by these holders 81.

As shown in fig. 9 (a), the housing portion 83 of the lower partition member 51 includes a member provided coaxially with the positioning recess 75. The attached portion 87 of the upper partition member 53 corresponding to the insertion hole 85 of the housing portion 83 is provided in the positioning projection 77.

As shown in fig. 8, the lower partition member 51 and the upper partition member 53 have a first seal member 89 interposed between the plurality of joint surfaces 55. A groove 91 into which the first seal member 89 can be fitted is formed in the joint surface 55 of the lower partitioning member 51, and the first seal member 89 is disposed in the groove 91. The first seal member 89 is detachably disposed without being bonded to the groove 91.

As shown in fig. 5, the first seal member 89 is an inner peripheral wall surface 33b of the peripheral wall portion 49 of the discharge passage 33, and is formed to extend along the inner peripheral wall surface 33b that is formed by contacting one opening edge 13a to the other opening edge 13a in the width direction of the discharge port 13. The first seal member 89 is disposed so as to surround the ejection channel 33 from three sides, i.e., the widthwise both sides and the inner side.

Returning to fig. 8, on the joint surface 55 of the upper dividing member 53, a protrusion 93 is formed at a position facing the first seal member 89 in the vertical direction Z. The projection 93 is formed as a projection (a projection strip) along the direction in which the first seal member 89 extends. The projection 93 presses the first sealing member 89, and the joint surfaces 55 are sealed by the first sealing member 89. Thus, the first sealing member 89 restricts the water in the discharge passage 33 from leaking to the outside through the joint surface 55. More specifically, leakage from the outer peripheral surface 19c of the discharge member 19 through the joint surface 55 or leakage from the insertion through hole 85 of the housing 83 or the like is restricted.

Further, an annular second seal member 95 is interposed between the distal end surface 69d of the space holding portion 69 and the upper wall surface 73 of the upper partition member 53 facing thereto. Similarly to the first seal member 89, the second seal member 95 is also detachably disposed without being bonded to the annular groove 97 formed in the distal end surface 69 d. An annular protrusion 99 is formed on the upper wall surface 73 at a position facing the second seal member 95 in the vertical direction Z. The projection 99 also presses the second seal member 95, and the space between the front end surface 69d and the upper wall surface 73 is sealed by the second seal member 95.

As shown in fig. 5, the plurality of insertion holes 85 are arranged at intervals along the inner peripheral wall surface 33b of the peripheral wall portion 49 of the water emitting member 19. That is, although not shown in the figure, the plurality of anchors 81 are also arranged in the same positional relationship. These retainers 81 are disposed adjacent to each other in the width direction X such that: the interval L2 between the water discharge members 19 at both ends 19a in the width direction X is narrower than the interval L1 between the water discharge members 19 at the middle 19b in the width direction X.

The operation of the water jet apparatus 10 of the above embodiment will be described.

As shown in fig. 4, the water jet member 19 is fed under pressure at a predetermined flow rate from the water feed pump 221 (see fig. 2), and the water flows into the storage chamber 37 from the inlet 35 through the water guide passage 17 and is stored in the storage chamber 37 as temporary storage water. When water is fed from the inlet 35 in a state where water is stored in the storage chamber 37, the stored water in the storage chamber 37 is pressurized, and the stored water is fed to the discharge port 13 through the restrictor passage 39 by the hydraulic pressure, and the water jet W is discharged from the discharge port 13.

Here, the water flowing in from the inlet 35 on the upstream side flows so as to spread from the inlet 35 to the inlet 39a of the restricted flow path 39. The water flow is effectively rectified into: when passing through the storage chamber 37, the flow velocity is significantly reduced as compared with the case where the channel height of the discharge channel 33 is constant, and the flow velocity is uniform in the width direction X of the discharge channel 33 while reaching the inlet 39a of the restricted flow channel 39 from the inlet 35.

The operation and effect of the water jet apparatus 10 of the above embodiment will be described.

The discharge port 13, the storage chamber 37, and the flow restricting passage 39 of the water ejecting member 19 are defined by both the upper dividing member 53 and the lower dividing member 51. Thus, when the

partition members

51 and 53 are detached, the inner wall surfaces 71, 73, and 33b of the discharge channel 33 can be exposed from the external space 235 in the range from the discharge port 13 to the storage chamber 37. In general, when a portion having a hollow cross section is formed, the difficulty of forming the portion in which the inner wall surface is exposed from the external space is reduced by forming each of the plurality of members as compared with integrally forming the portion from a single member, and the dimensional accuracy of the inner wall surface is easily ensured. Therefore, according to the water spouting member 19 of the present embodiment, the surface roughness of the inner wall surfaces 71, 73, and 33b of the spouting passage 33 can be easily suppressed, and the scattering of the shape of the water spouting W due to the surface roughness can be easily suppressed. In particular, since the respective divided

members

51, 53 are resin molded products, cast surfaces such as metal castings are not generated on the inner wall surfaces 71, 73, 33b of the discharge passage 33, and increase in the surface roughness is suppressed.

Further, since the cross section of the flow path when the water flows in from the inlet 35 changes rapidly, the flow of water supplied into the discharge passage 33 is easily disturbed. In addition, the jetting passage 33 has a cross-sectional shape with a wide passage width and a low passage height, in addition to jetting the water jet W having a large width in the lateral direction. Therefore, the water flow passing through the inside thereof is also laterally long and thin, and is easily affected by turbulence in the discharge passage 33, obstruction by foreign matter, and the like. Further, the distance from the inlet 35 to the discharge port 13 varies depending on the position in the width direction of the discharge port 13, and the difference between the minimum distance and the maximum distance is likely to increase as the width of the discharge port 13, that is, the width of the water jet W increases. From the above, when the water jet W discharged from the discharge port 13 is supplied to the discharge passage 33 without the storage chamber 37, the flow velocity in the width direction X of the discharge port 13 is likely to fluctuate, and the shape thereof is likely to be scattered.

In this regard, since the storage chamber 37 is formed in the discharge passage 33, the discharge member 19 of the present embodiment can effectively rectify the flow of water in the discharge passage 33 so that the flow velocity decreases when the water passes through the storage chamber 37, and the flow velocity in the width direction X in the storage chamber 37 becomes uniform. Therefore, the water jet W discharged from the discharge port 13 is easily made uniform in flow velocity in the width direction X, and the dispersion of the shape is suppressed, thereby providing the water jet W excellent in appearance. Further, by allowing the water jet W excellent in aesthetic appearance to fall on the shoulder of the bather, a more effective relaxing effect is obtained.

The storage chamber 37 is formed such that a pair of opposing lower wall surfaces 71 and upper wall surfaces 73 of the discharge passage 33 each extend away from the inlet 39a of the restricted flow path 39. Therefore, the volume inside the pair of wall surfaces 71 and 73 is more likely to be increased than when the wall surfaces are formed so that only one of the wall surfaces is expanded in the direction away from the other wall surface. As a result, the water pressure of the accumulated water in the accumulation chamber 37 is reduced, the flow rate is also easily reduced, and the flow rate in the width direction X in the accumulation chamber 37 can be more effectively adjusted to be uniform.

As shown in fig. 8, the water ejecting member 19 has the space holding portion 69 disposed in the ejection passage 33, and therefore, the following advantages are obtained. In the water jet device 10, a pillow member is disposed on the upper surface of the device main body 11, and a bather may use the device with his head placed thereon. At this time, a load for urging the interval of the discharge channels 33 to be narrowed is applied to the water jet member 19. If the interval of the discharge channels 33 is narrowed by the load, the shape of the water jet W may be disturbed. In particular, since the water flow passing through the ejection passage 33 is formed into a thin shape in the lateral direction as described above, it is easily affected by the variation in the interval of the ejection passage 33. In this regard, in the present embodiment, since the interval of the discharge channels 33 can be maintained by the interval maintaining portions 69, even if the load is applied to the water jet member 19, the scattering of the shape of the water jet W can be easily suppressed. There are in particular the following great advantages: the respective divided

members

51 and 53 are resin molded products that are difficult to secure strength, and in this case, it is possible to suppress the change in the interval of the discharge channel 33 due to the load.

At this time, if the space holder 69 is disposed in the discharge passage 33, the water flow is blocked by the space holder 69. In this regard, the space holding portion 69 of the present embodiment is disposed in the storage chamber 37 in which the flow velocity of the water flow is low and the distance to the discharge port 13 is longer than the restricted flow path 39. Therefore, even if the water flow is interrupted by the space holding portion 69, the interrupted water flow is easily merged before reaching the discharge port 13, and the shape of the water jet W is easily prevented from being disturbed by the interruption of the water flow.

If the first sealing member 89 is assembled to the upper divided member 53 without being bonded, the divided

members

51 and 53 can be easily removed when assembled, and the assembly work becomes troublesome if the divided members are assembled with being bonded. In particular, since the first sealing member 89 of the present embodiment has a complicated shape surrounding the discharge channel 33 from three sides, the assembly operation is more troublesome when the upper dividing member 53 is adhesively attached. In this regard, since the first seal member 89 of the present embodiment is disposed in the groove 91 of the lower split member 51, the upper split member 53 can be assembled to the lower split member 51 in a state where the first seal member 89 is placed in the groove 91 without being bonded, and the workability in assembly is good.

Further, in the water spray member 19, there is a case where an opposite bending force is applied in the vertical direction by screwing of the fixing member 231 (see fig. 4), water pressure in the discharge passage 33, or the like. At this time, as shown in fig. 5, the water jetting member 19 jets the water jet W having a wide width and occupies a small space, so that the depth is reduced compared to the width. Therefore, the both end portions 19a are easily longer than the intermediate portion 19b in the width direction X of the water emitting member 19 by the distance from the force point at which the bending force is applied, that is, the distance from the force point to the action point, and the bending moment of that magnitude is easily exerted. In this regard, in the present embodiment, the plurality of anchors 81 (not shown in the figure) are arranged such that the distance L2 between the both end portions 19a of the water emitting member 19 is narrower than the distance L1 between the intermediate portions 19b, and the degree of fixation of the both end portions 19a is higher than the degree of fixation of the intermediate portion 19 b. Therefore, the distance L1 between the anchors 81 is increased at the middle portion 19b of the water jet member 19 to control the number thereof, and the distance L2 between the anchors 81 is decreased at both end portions 19a thereof to effectively resist the bending moment, thereby stably maintaining the coupled state of the divided

members

51 and 53.

Further, since the respective divided

members

51 and 53 are resin molded products, it is possible to provide the water jet apparatus 10 in which various colors are diversified by mixing a colorant with a resin composition. Further, since the respective divided

members

51 and 53 are resin molded products, post-processing such as antiseptic treatment is not required, and productivity is improved.

In the foregoing, the present invention has been described in terms of embodiments, which are merely illustrative of the principles and applications of the present invention. In the embodiment, various modifications and changes in arrangement are possible without departing from the scope of the concept of the present invention defined in the claims.

The example of the bath 210 being the base to which the sprinkler 10 is installed has been described, but the specific configuration of the base is not limited to this. The water jet device 10 may be used as a base body of a washbasin in a toilet or a kitchen sink. In either case, the base may be provided with the installation surface 217, and the water jet apparatus 10 may be installed on the installation surface 217.

The ejection port 13 is formed in a slit shape that is long in the lateral direction, and the ejection passage 33 is formed long in the lateral direction in the extending direction of the ejection port 13. These shapes are not limited thereto, and may be formed in a circular shape or the like, for example.

The upper dividing member 53 and the lower dividing member 51 have been described as an example of a resin molded article, but may be formed of other metal castings. At this time, since the hollow cross-sectional passage portion 23 is configured by assembling a plurality of members, the surface roughness is easily reduced by disassembling these members and then machining the inner wall surface of the discharge passage 33 by cutting, grinding, or the like.

The upper dividing member 53 and the lower dividing member 51 are explained as the first dividing member and the second dividing member having the shape of the vertically-divided water jet member 19. In addition, they may have a shape divided in the width direction X. In either case, each of the dividing members may have a shape divided in a direction intersecting the direction from the storage chamber 37 to the discharge port 13.

The lower dividing member 51 and the upper dividing member 53 are detachably assembled by the holder 81, but the present invention is not limited thereto, and may be assembled by a snap or the like. The inlet 35 is formed in the lower wall surface 71 of the discharge channel 33, but may be formed in the wall surface of the discharge channel 33, or may be formed in the upper wall surface 73, the rear wall surface 73, or a side wall surface.

The above description has been made by taking as an example the case where the space holding portion 69 is integrally formed by rising from the lower split member 51, but may be integrally formed with the upper split member 53 or may be provided separately from the

split members

51 and 53.

The positioning structure 79 has been described by taking the example of the combination of the positioning convex portion 77 and the positioning concave portion 75, but is not limited thereto. The positioning structure 79 may be provided on one of the lower divided part 51 and the upper divided member 53, for example, and may be constituted by a guide projection projecting toward the other. At this time, when the divided

members

51 and 53 are assembled, the other is guided by the guide projection to determine the positions thereof. In addition, the positioning structure 79 has been described as an example in which the positioning convex portion 77 is provided on the upper dividing member 53 and the positioning concave portion 75 is provided on the lower dividing member 51, but the position determining concave portion 75 may be provided on the upper dividing member 53 and the positioning convex portion 77 may be provided on the lower dividing member 51.

The description has been given taking the example in which the retainer 81 is accommodated in the accommodating portion 83 provided in the lower divided member 51, but it may be accommodated in the accommodating portion 83 provided in the upper divided member 53. In either case, the housing portion 83 is provided in one of the lower divided member 51 and the upper divided member 53 at a position corresponding to the peripheral wall portion 49 surrounding the discharge passage 33, and the attached portion 87 is provided in the other.

Description of the reference numerals

10 a water spraying device; 13 an ejection port; 19a discharge member; 19a two end portions; 19b an intermediate portion; 33 an ejection channel; 33b inner wall surface; 37 a storage chamber; 39a flow restricting flow path; 39a inlet; 49 peripheral wall parts; 51 a lower side dividing member; 53 upper side dividing member; 55 a bonding surface; 69a space holding part; structure 79; 81a holder; 91 a groove part; 200 bath tub devices; 210 bath.

Industrial applicability

The present invention relates to a water jet device for jetting water.

Claims

1. A water spraying device is characterized in that,

comprises a water spraying component, wherein a spraying channel is formed inside the water spraying component,

the discharge passage is formed by a discharge port for discharging water forward, a storage chamber for storing water flowing from an upstream side, and a restricted flow path for sending the water in the storage chamber to the discharge port,

the water spraying part is formed by assembling a first dividing part and a second dividing part,

the discharge port, the storage chamber, and the restricted flow path are defined by both the first partition member and the second partition member,

the first divisional member and the second divisional member have a sealing member disposed between the first divisional member and the second divisional member,

the water spray member has a space holding portion which is disposed in the spray passage and holds a space between a pair of wall surfaces facing each other of the spray passage,

the space holding portion is disposed in the storage chamber at a distance from the discharge port that is farther than the restricted flow path.

2. The water jet apparatus of claim 1,

the storage chamber is formed such that a pair of wall surfaces facing each other of the discharge channel are expanded in a direction away from each other from an inlet of the restricted flow channel.

3. Water injector according to claim 1 or 2,

the first divisional member and the second divisional member have a plurality of engagement surfaces that abut each other,

the sealing member is interposed between and seals the plurality of engagement surfaces.

4. The water jet apparatus of claim 3,

the first and second dividing members are upper and lower dividing members having a shape dividing the water spray member into upper and lower parts,

the plurality of engagement surfaces are disposed so as to be opposed in the up-down direction,

the sealing member is disposed in a groove portion formed in a joining surface of the lower partition member.

5. Water injector according to claim 1 or 2,

the water spray member has a positioning structure that positions the first and second divisional members when the first and second divisional members are assembled.

6. Water injector according to claim 1 or 2,

the water ejecting member has a peripheral wall portion surrounding the ejection passage from three sides, that is, two sides in a width direction of the ejection passage and an inner side opposite to the ejection port,

the first divided member and the second divided member are coupled by a plurality of fasteners arranged at intervals along an inner peripheral wall surface of the peripheral wall portion,

the plurality of anchors are arranged such that the intervals at both widthwise end portions of the water ejecting member are narrower than the intervals at the widthwise intermediate portion.

7. Water injector according to claim 1 or 2,

the first and second divided members are resin molded articles.

8. Water injector according to claim 1 or 2,

the ejection port is formed in a slit shape which is long in the lateral direction,

the ejection passage is formed to be laterally long in an extending direction of the ejection port.

9. A bath device, comprising:

the water jet device of any one of claims 1 to 8; and

the bath is provided with the water spraying device.