JP2017141604A - Water discharge device and hand-washing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water discharge device capable of easily discharging film-like water even if a water reservoir part of a water communication passage is omitted.SOLUTION: A water discharge device 30 is installed in a hand-wash basin with a tank water supply passage for supplying water to a toilet bowl washing tank as a water supply source, and comprises a water communication passage 40 for making the water flow in from an upstream side water passage and a slit-like water discharge passage 42 for discharging the water of flowing out of the water communication passage 40, and the water communication passage 40 comprises a water outflow port 40b for opening on one inner wall surface 42a out of a pair of inner wall surfaces 42a and 42b opposed to the slit width direction of the water discharge passage 42, and the water discharge passage 42 is formed so as to expand in the slit longitudinal direction to the water outflow port 40b.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a water discharge device used in a toilet device and a hand-washing device using the same.

  Conventionally, a toilet bowl and a hand-washer may be used in combination so that a user can wash hands after using the toilet bowl. The handwasher is usually provided with a water discharge device that uses a tank water supply channel for supplying water to the toilet bowl washing tank as a water supply source, and water is discharged from the water discharge device toward the bowl of the handwasher.

  As this example, Patent Document 1 discloses a device for discharging wide film-like water as a water discharging device attached to a hand-washer. This document discloses that a water reservoir for collecting water discharged from the water discharge pipe is provided in the water passage of the water discharge device, and water overflowing from the water reservoir is discharged from the discharge port as film-like water.

Noto 2552776

  The water discharge device of Patent Document 1 is considered to be provided with a water reservoir in the water channel so that the membrane water can be discharged easily. At present, a water discharge device having a structure that can easily discharge film-like water even if the water reservoir of the water passage is omitted has not been proposed. If there is a water discharge device having such a structure, the design freedom of the water discharge device having a function of discharging film-like water will be increased as compared with the conventional water discharge device.

  This invention is made | formed in view of such a subject, and the objective is to provide the water discharging apparatus which can discharge film-like water easily even if the water reservoir part of a water flow path is abbreviate | omitted.

An embodiment of the present invention for solving the above-described problem is a water discharge device.
The water discharge device according to the first aspect is a water discharge device attached to a hand basin using a tank water supply channel for supplying water to the toilet flushing tank as a water supply source, and a water flow channel through which water flows from an upstream water channel, and an outflow from the water flow channel A slit-shaped water discharge channel for discharging water to be discharged, and the water flow channel has a water outlet that opens on one inner wall surface of a pair of inner wall surfaces facing in the slit width direction of the water discharge channel. And the said water discharge path is formed so that an internal space may be expanded in a slit longitudinal direction with respect to the said water outflow port.

  According to the water discharge device of the first aspect, the water flowing out from the water outlet of the water flow channel is caused to collide with the other inner wall surface opposite to the one inner wall surface of the water discharge channel, and spread from the collision position in the longitudinal direction of the slit. The membrane water can be easily discharged from the water discharge channel.

It is a perspective view which shows the toilet device in which the hand-washing apparatus of 1st Embodiment is used. It is a block diagram which shows typically a part of water supply system of the toilet device of 1st Embodiment. It is side surface sectional drawing of the hand-washing apparatus of 1st Embodiment. It is front sectional drawing of the hand-washing apparatus of 1st Embodiment. It is side surface sectional drawing to which a part of hand-washing apparatus of 1st Embodiment was expanded. It is the perspective view which looked at the cross section of FIG. 5 from diagonally lower side. Fig.7 (a) is side sectional drawing which shows the water discharging apparatus of a 1st reference example, FIG.7 (b) is the sectional view on the AA line of Fig.7 (a). FIG. 6 is a sectional view taken along line B-B in FIG. 5. It is a figure which shows a part of CC line end surface of FIG. It is a figure which shows typically the water flow path and water discharge path of the water discharging apparatus of 1st Embodiment. It is the figure which looked at the water discharge channel of 2nd Embodiment from the same viewpoint as FIG. It is the figure which looked at the water discharge channel of 2nd Embodiment from the same viewpoint as FIG. It is the figure which looked at the water discharge channel of 3rd Embodiment from the same viewpoint as FIG. It is front sectional drawing of the hand-washing apparatus which concerns on 4th Embodiment. It is the DD sectional view taken on the line of FIG. FIG. 16A is a diagram of the water discharge channel of the first modified example viewed from the same viewpoint as FIG. 9, and FIG. 16B is a diagram of the water discharge channel of the second modified example viewed from the same viewpoint as FIG. FIG.

  Hereinafter, in the embodiment and the modification, the same reference numerals are given to the same components, and the duplicate description is omitted. In the drawings, for convenience of explanation, some of the components are omitted as appropriate, and the dimensions of the components are appropriately enlarged and reduced.

[First Embodiment]
FIG. 1 is a perspective view showing a toilet device 12 in which the hand-washing device 10 of the first embodiment is used.
The toilet device 12 mainly includes a toilet 14, a casing 16, a toilet cleaning tank 18 (hereinafter also simply referred to as a tank 18), and a hand-washing device 10. The casing 16 is an exterior body for housing the tank 18 and the like. The casing 16 is mounted on the toilet bowl 14 together with the tank 18, and an upper end opening 16 a is formed at the upper end of the casing 16. The tank 18 is for storing washing water supplied in a toilet bowl (not shown) of the toilet bowl 14.

Drawing 2 is a lineblock diagram showing typically a part of water supply system of toilet device 12 of an embodiment.
The toilet device 12 includes a tank water supply channel 20 and a branch water supply channel 22. The tank water supply channel 20 is a water channel for supplying water to the tank 18. A first constant flow valve 23 and a ball tap 24 are installed in the tank water supply channel 20. The first constant flow valve 23 restricts the water supplied from the water source to a predetermined flow rate or less. The first constant flow valve 23 is used to suppress the influence of pressure fluctuation in the water channel portion on the water source side from the first constant flow valve 23 and supply water with a stable flow rate into the tank 18. The ball tap 24 opens and closes the tank water supply path 20 in conjunction with the water level in the tank 18. Thereby, the tank water supply path 20 switches between a water supply state in which water is supplied to the tank 18 and a water supply stop state in which water supply to the tank 18 is stopped. When the cleaning water in the tank 18 falls below a predetermined water level, the ball tap 24 is opened, and water is supplied into the tank 18 from the downstream end 20a of the tank water supply channel 20. When the cleaning water in the tank 18 reaches a predetermined water level or more, the ball tap 24 is closed, and water supply from the tank water supply path 20 to the tank 18 is stopped.

  The branch water supply channel 22 is a water channel for supplying water to the water discharge device 30 of the hand-washing device 10, and is branched from the tank water supply channel 20. The water discharge device 30 uses the tank water supply channel 20 as a water supply source. The branch water supply path 22 branches off from the water channel portion downstream of the ball tap 24 of the tank water supply path 20. Similar to the tank water supply channel 20, the branch water supply channel 22 switches between a water supply state for supplying water to the water discharge device 30 and a water supply stop state for stopping water supply to the water discharge device 30 in conjunction with the water level of the tank 18. . A second constant flow valve 25 is installed in the branch water supply path 22. The second constant flow valve 25 suppresses the influence of the pressure fluctuation in the water channel portion between the first constant flow valve 23 and the second constant flow valve 25 due to the water discharge operation from the downstream end 20a of the tank water supply channel 20, This is for supplying water with a stable flow rate to the water discharger 30.

FIG. 3 is a side sectional view of the hand washing apparatus 10. FIG. 4 is a front sectional view of the hand washing apparatus 10.
The hand-washing device 10 includes a hand-washing device 26, a water supply pipe 28, and a water discharge device 30. The hand-washer 26 is attached to the casing 16 as a base to which the hand-washer 26 is attached. Specifically, the handwasher 26 is attached to the upper end opening 16 a of the casing 16 as a lid.

  The hand-washing machine 26 is integrally molded using synthetic resin, ceramics, or the like as a material. The hand wash basin 26 includes a bowl portion 26a and an outer peripheral wall portion 26b. The outer peripheral wall portion 26b is formed to extend downward from the upper edge of the pot portion 26a, and is provided so as to surround the pot portion 26a from the outer peripheral side.

  A drain tube portion 26d protruding downward is formed on the bottom surface portion 26c of the pot portion 26a, and a drain hole 26e penetrating the bottom surface portion 26c of the pot portion 26a is formed inside the drain tube portion 26d. The water received in the pot portion 26a is drained into the tank 18 through the drain hole 26e and the like.

  A rear wall portion 26f forming a part in the circumferential direction of the inner peripheral wall portion of the bowl portion 26a is formed so as to extend above the front wall portion 26g on the front side forming the other portion. A device attachment portion 26h to which the water discharge device 30 is attached is provided on the upper portion of the rear wall portion 26f of the pot portion 26a.

FIG. 5 is an enlarged side sectional view of a part of the hand washing apparatus 10. FIG. 6 is a perspective view of the cross section of FIG. 5 as viewed obliquely from below.
The water supply pipe 28 is integrally formed using a hard material such as synthetic resin. A part of the aforementioned branch water supply path 22 is formed inside the water supply pipe 28. A part of the water supply pipe 28 is disposed on the back surface side (outer peripheral side) of the rear wall portion 26 f of the hand-washing device 26. A relay pipe 29 (see FIG. 3) is connected to the upstream end of the water supply pipe 28 and communicates with the tank water supply path 20 via the relay pipe 29. An insertion hole 26j is formed in the device mounting portion 26h of the hand basin 26, and a part of the water supply pipe 28 is inserted into the insertion hole 26j. A male connection tube portion 28 a is provided at the downstream end of the water supply pipe 28. The water supply pipe 28 is attached to the hand basin 26 with a fitting such as a screw (not shown).

  The water discharge device 30 includes a housing 34 and a cover 36. The housing 34 is connected to the water supply pipe 28 by a fastener 38 such as a clip, and is attached to the hand washing machine 26 via the water supply pipe 28. The housing 34 is a water channel forming body in which a water channel is formed, and discharges water supplied from the water supply pipe 28 from a water discharge channel 42 (described later). The cover 36 is disposed outside the housing 34 and is fixed to the housing 34 by a fixing tool such as a screw (not shown). The cover 36 serves as an exterior body of the water discharge device 30 that covers most of the housing 34. As a whole, the water discharge device 30 is provided so as to protrude from the rear wall portion 26f of the hand-washing device 26 toward the front side.

  The housing 34 includes a female-side connecting cylinder portion 34 a, a water passage 40, a water discharge passage 42, and a water discharge portion 44. Details of the water passage 40 and the water discharge passage 42 will be described later.

  The male side connection cylinder part 28a of the water supply pipe 28 is inserted in the female side connection cylinder part 34a. The space between the female side connecting cylinder part 34 a of the housing 34 and the male side connecting cylinder part 28 a of the water supply pipe 28 is sealed by a seal member 46 attached to the outer peripheral surface of the male side connection cylinder part 28 a of the water supply pipe 28.

  The water discharge part 44 is a part which forms a part of the housing 34, and a water discharge port 48 connected to the water discharge path 42 is formed on the outer surface thereof. The water discharge part 44 is arrange | positioned so that the bottom side of the bowl part 26a of the hand-washing machine 26 may be faced. The water discharge portion 44 is formed so as to protrude outward from the other wall portion 34 b connected to the periphery of the housing 34. The cover 36 has an inner circumferential fitting portion 36 a corresponding to the outer circumferential shape of the water discharge portion 44, and the water discharge portion 44 of the housing 34 is fitted into the fitting portion 36 a of the cover 36.

  The water passage 40 is for flowing water flowing from the water outlet 22a of the branch water supply passage 22 of the water supply pipe 28 serving as the upstream water passage toward the water discharge passage 42. The water passage 40 has a water inlet 40 a for allowing water to flow in from the branch water supply passage 22 and a water outlet 40 b for allowing water to flow into the water discharge passage 42. Water flows laterally from the water inlet 40a of the water passage 40 of this embodiment, and water flows laterally from the water outlet 40b of the water passage 40.

Fig.7 (a) is side sectional drawing which shows the water discharging apparatus 130 of a 1st reference example, FIG.7 (b) is AA sectional view taken on the line of Fig.7 (a).
As shown in FIGS. 5 and 6, the water channel 40 of the present embodiment does not have a water reservoir 50 for storing water flowing in from the branch water supply channel 22 that is an upstream water channel. As shown in FIG. 7, the water reservoir 50 here stores the water flowing in from the upstream water channel portion 50a at a position lower than the upstream water channel portion 50a, and overflows the accumulated water from the overflow edge 50b. This means a part that flows out downstream. Thereby, the water flow path 40 of this embodiment allows the water flowing in from the branch water supply path 22 to flow along the water flow path 40 without accumulating in the middle of the water flow path 40, so that the water flows through the water flow path 40. It can be guided to the outlet 40b. The water flow path 40 allows the water flowing from the branch water supply path 22 to flow along the water flow path 40 in a range from the water flow inlet 40a to the water flow outlet 40b of the water flow path 40 without accumulating water flowing in the middle of the water flow. It can also be said that it is configured to guide to the outlet 40b.

8 is a cross-sectional view taken along the line BB in FIG. 5, and FIG. 9 is a view showing a part of the end surface taken along the line CC in FIG.
As shown in FIGS. 5, 8, and 9, the water discharge channel 42 is for discharging water flowing out from the water outlet 40 b of the water flow channel 40 as film-like water 52, and has a slit shape. The water discharge passage 42 of the present embodiment has a shape extending linearly in the slit longitudinal direction A. Further, the water discharge passage 42 of the present embodiment has a flat shape extending linearly from the entrance side where the water discharge port 48 described later is present to the back side.

  The water discharge channel 42 has a pair of inner wall surfaces 42 a and 42 b that face the slit width direction A of the water discharge channel 42, and a water discharge port 48 that opens at the downstream end of the water discharge channel 42. The pair of inner wall surfaces 42a and 42b are arranged in parallel to each other. A water outlet 40b of the water passage 40 opens on one rear inner wall surface 42a of the pair of inner wall surfaces 42a and 42b. The water outlet 40b of the present embodiment is located at the center side in the slit longitudinal direction A of the water discharge passage 42 as viewed from one side (the viewpoint in FIG. 8) in the central axis direction of the water outlet 40b. Is provided. The other front inner wall surface 42b of the pair of inner wall surfaces 42a and 42b is provided at a position where the water outlet 40b of the water passage 40 abuts in the outflow direction Pa of water from the water outlet 40b.

  The water outlet 48 also has the same slit shape as the water discharge passage 42. The water outlet 48 is provided so that the slit longitudinal direction A extends in the horizontal direction, and the film-like water 52 is discharged downward from the water outlet 48.

  The water discharge path 42 is formed so as to widen the internal space on both sides in the slit longitudinal direction A with respect to the water outlet 40b. Specifically, the water discharge channel 42 is formed so as to widen the internal space on both sides in the slit longitudinal direction A with respect to the central axis CL when viewed from one side (the viewpoint in FIG. 8) of the water outlet 40b in the central axis direction. The

The operation of the water discharge device 30 will be described. FIG. 10 is a diagram schematically illustrating the water passage 40 and the water discharge passage 42 of the water discharge device 30.
When water flows into the water flow path 40 from the branch water supply path 22 of the water supply pipe 28, water flows in the direction Pb through the water flow path 40, and water flows out from the water outlet 40 b of the water flow path 40 into the water discharge path 42. When water flows out from the water outlet 40b of the water passage 40 into the water discharge passage 42, the water collides with the front inner wall surface 42b (see FIG. 5) of the water discharge passage 42 and changes the flow direction so as to spread from the collision position to the periphery. change. At this time, since the water discharge path 42 is formed so as to spread in the slit longitudinal direction A with respect to the water outlet 40b of the water flow path 40, a part of the water colliding with the front inner wall surface 42b of the water discharge path 42 is discharged from the water discharge path. The flow direction is changed so as to spread in the slit longitudinal direction A of 42 (see direction Pc). The water whose flow direction has been changed due to the collision with the front inner wall surface 42b in the water discharge channel 42 is pushed into the water discharge port 48 of the water discharge channel 42 by pushing out the water flowing out from the water outlet 40b of the water flow channel 40 or by its own weight. Directed (see direction Pd). Water is discharged as film-like water 52 from the water discharge port 48.

The operational effects of the hand washing apparatus 10 will be described.
The water discharge channel 42 of the water discharge device 30 is formed to extend in the slit longitudinal direction A with respect to the water outlet 40 b of the water flow channel 40. Therefore, the water flowing out from the water outlet 40b of the water passage 40 collides with the front inner wall surface 42b of the water discharge passage 42, and the water is spread in the slit longitudinal direction A from the collision position so that the membrane water 52 is discharged from the water discharge passage 42. It becomes possible to discharge water easily. For this reason, even if the water reservoir 50 of the water passage 40 is omitted, the membranous water can be discharged.

  Moreover, since it becomes possible to discharge the film-like water easily with an unprecedented structure, the degree of freedom in design can be expanded compared to the related art when designing a water discharge device having a function of discharging the film-like water.

  According to the present embodiment, since there is no water reservoir 50 in the water passage 40, when it is in a standby state in which the membrane water 52 is not discharged from the water discharge passage 42, it is difficult for water to remain in the water discharge device 30. It becomes easy to keep good hygiene.

  Further, when the water reservoir 40 has the water reservoir 50, if the water in the water reservoir 50 evaporates, the water begins to flow into the water conduit 40 from the water supply pipe 28 and then the membrane water 52 from the water discharge passage 42. It takes time to store water in the water reservoir 50 until water starts to be discharged. In this regard, according to the present embodiment, since the water reservoir 40 does not have the water reservoir 50, time for storing water in the water reservoir 50 becomes unnecessary. Therefore, the time required from when the water begins to flow into the water passage 40 from the water supply pipe 28 to when the film-like water 52 starts to be discharged from the water discharge path 42 can be shortened, and the film-like water 52 is always discharged early. It becomes easy to do.

  Further, as shown in FIG. 3, since there is no water reservoir 50 in the water passage 40, compared to a structure in which the water reservoir 40 is in the water passage 40, the water discharged from the rear wall portion 26 f of the hand-washer 26 toward the front side. The protrusion dimension La of the device 30 can be shortened. Therefore, the distance Lb of the space 54 between the front wall part 26g facing the front side with respect to the rear wall part 26f of the hand-washing device 26 and the water discharger 30 can be increased. This space 54 becomes an insertion space 54 for inserting both hands when washing hands. For this reason, compared with the structure in which the water reservoir 40 is in the water passage 40, both hands can be easily inserted into the insertion space 54, and hand washing is facilitated.

Other features of the hand-washing apparatus 10 will be described.
As shown in FIGS. 5 and 8, the water discharge path 42 has a rectifying region 42 c provided between the water discharge port 48 and the water outlet 40 b. The rectifying region 42c is for adjusting the flow of water flowing out from the water outlet 40b. More specifically, the rectifying region 42 c is for adjusting the flow of water so that the velocity vector of the membranous water 52 passing through the water discharge port 48 is aligned in the slit longitudinal direction A. In order to realize this, the rectifying region 42c is set to have the same inner width dimension (slit width) toward the depth direction B of the water discharge passage 42. It can be said that the rectifying region 42c has a cross-sectional dimension set so that the velocity vectors of the membranous water 52 passing through the water discharge port 48 are aligned in the slit longitudinal direction A. The “equivalent” in the present specification includes a case where the objects to be compared are completely the same and a case where they are almost the same.

  If the velocity vector of the film-like water 52 discharged from the water discharge path 42 is not uniform in the slit longitudinal direction A, the shape of the film-like water 52 is disturbed between the time when water discharges from the water discharge path 42 and the time when the water reaches the water. It becomes easy. Here, the disturbance means that the membranous water 52 flows in a state of being greatly sunk or greatly spread in the longitudinal direction. In this regard, according to the present embodiment, since the velocity vectors of the film-like water 52 discharged from the water discharge passage 42 can be easily aligned in the slit longitudinal direction A, it is easy to discharge the clean film-like water 52 with little disturbance in appearance. Become.

  Note that the longer the depth dimension Lc, which is the dimension of the rectifying region 42c in the depth direction B of the water discharge passage 42, is, the easier it is to obtain the rectifying effect by the rectifying region 42c. Although the depth dimension Lc of the water discharge channel 42 of this embodiment is set to the magnitude | size beyond the maximum diameter Ld of the water outflow port 40b of the water flow path 40, it is not restricted to this.

Moreover, let the water channel cross-sectional area of the water discharge channel 42 be S1 [mm < ² >], and let the water channel cross-sectional area of the water flow channel 40 be S2 [mm < ² >]. Here, the cross-sectional area S1 of the water channel is a section of the water discharge channel 42 in a cross section (cross section in FIG. 9) orthogonal to the flow direction of the water discharge channel 42 from the water outlet 40b of the water flow channel 40 to the water discharge port 48 of the water discharge channel 42. It refers to the area. Further, the water channel cross-sectional area S2 of the water flow channel 40 refers to a cross-sectional area in a cross section orthogonal to the flow direction Pe (see FIG. 5) of the water flow channel 40. At this time, the water channel cross-sectional area S1 of the water discharge channel 42 is set to be smaller than the water channel cross-sectional area S2 of the water flow channel 40.

  If this condition is not satisfied, it is difficult to continuously fill the water discharge passage 42 with water, and the longitudinal dimension of the membrane water 52 discharged from the water discharge passage 42 may become unstable. In this regard, according to the present embodiment, it is easier to increase the outflow amount from the water passage 40 to the water discharge passage 42 per unit time than the total water discharge amount per unit time of the water discharge passage 42. Therefore, it becomes easy to continuously fill the water discharge passage 42 with water, and it becomes easy to continuously discharge the clean membranous water 52 having a certain longitudinal dimension.

  The cover 36 covers a range other than the water discharge portion 44 of the housing 34 so as not to be exposed to the outside. Thereby, the exterior which does not depend on the internal shape and external shape of the housing 34 can be obtained, and favorable design property can be obtained.

Next, other features of the hand washing apparatus 10 will be described.
As shown in FIG. 5, the lower inner surface of the water passage 40 has an inclined region 40 c that inclines with an upward slope toward the downstream side of the water passage 40. The inclined region 40c is provided in a range from the water outlet 40b of the water passage 40 toward the upstream side and at least a part of the range connected to the water outlet 40b. The inclined region 40c of the present embodiment is provided over the entire range from the water outlet 40b toward the water inlet 40a. This advantage will be described.

  Consider a situation where the ball tap 24 is closed and water supply from the branch water supply path 22 to the water supply path 40 is stopped. In this situation, if water remaining in the water passage 40 (hereinafter referred to as “residual water”) stays in the water, the water continuously flows from the water discharge passage 42 for a long period after the water supply to the water passage 40 is stopped. It will flow out and the appearance will be lost. In this regard, if there is the above-described inclined region 40c, the remaining water in the water passage 40 is guided by its own weight toward the branch water supply channel 22 side by the gradient of the inclined region 40c and drained early through the branch water supply channel 22. It becomes like this. Therefore, after the water supply from the branch water supply path 22 is stopped, the period during which the water flows out from the water discharge path 42 can be shortened, and a good appearance can be easily obtained.

  The upper end edge 40ba and the lower end edge 40bb of the water outlet 40b of the water passage 40 are provided at a higher position than the upper end edge 22aa and the lower end edge 22ab of the water channel outlet 22a provided at the downstream end of the branch water supply passage 22. The water outlet 22 a of the branch water supply path 22 is provided at the highest vertical position of the branch water supply path 22, and the downstream end 20 a of the tank water supply path 20 is provided at a position lower than the branch water supply path 22. Thereby, the water drained from the water channel 40 can be drained into the tank 18 from the downstream end 20a of the tank water channel 20 through the branch water channel 22.

  A tapered receiving surface portion 26eb is formed in the upper portion of the drain hole 26e of the hand-washing device 26 so as to decrease in diameter from the upper end opening 26ea toward the lower side. The receiving surface portion 26eb is for receiving the film-like water 52 that is regularly discharged from the water discharging device 30. This makes it easier to suppress water splashing from the landing position to the periphery of the drain hole 26e than receiving the membranous water 52 on a flat horizontal surface.

(Second Embodiment)
The film-like water 52 discharged from the water discharge passage 42 is given a surface tension in a direction that narrows the longitudinal dimension of the film-like water 52. The film-like water 52 tends to sag as a whole due to the surface tension between the time when the water is discharged from the water discharge passage 42 and the time when it reaches the water. What took this measure is the water discharger 30 of the second embodiment.

FIG. 11 is a view of the water discharge channel 42 of the second embodiment as viewed from the same viewpoint as FIG. 8, and FIG. 12 is a diagram of the water discharge channel 42 as viewed from the same viewpoint as FIG.
The water discharge path 42 of 1st Embodiment demonstrated the example set to the equivalent internal width dimension over the whole range of a slit longitudinal direction. In the water discharge channel 42 of the second embodiment, the end portions 42d on both sides in the slit longitudinal direction A are formed wider in the slit width direction C than the intermediate portion 42e in the slit longitudinal direction A. Here, “wide” means that the dimension in the slit width direction C is large. The end portion 42d of the water discharge channel 42 of the present embodiment is formed to have an arc shape in a cross section orthogonal to the flow direction of the water discharge channel 42, and the intermediate portion 42e is formed to have a linear shape.

  As a result, the flow rate of water passing through the end portion 42d is greater than the intermediate portion 42e of the water discharge passage 42, and the flow rate of water passing through the end portion of the membrane water 52 discharged from the discharge passage 42 is also higher than the intermediate portion in the longitudinal direction. Become. As a result of an experimental study by the inventor, the mechanism is not clear, but it has been found that the film-like water 52 is less likely to sag as a whole as the flow rate of water passing through the end portion is larger. Therefore, according to the water discharging device 30 of the present embodiment, the film-like water 52 is not easily squeezed as a whole, and it is easy to discharge clean film-like water 52 with less disturbance in appearance due to the squeezing of the film-like water 52. Become.

  In addition, although the water discharge channel 42 of this embodiment demonstrated the example in which the edge part 42d of the both sides of a slit longitudinal direction was formed more widely in the slit width direction C than the intermediate part 42e, only the edge part 42d of one side was wide. It may be formed.

(Third embodiment)
FIG. 13 is a view of the water discharge channel 42 of the third embodiment as viewed from the same viewpoint as FIG. 8.
The side surface 42f on both sides in the slit longitudinal direction A of the water discharge channel 42 of the first embodiment has the same longitudinal dimension as the size in the longitudinal direction of the water discharge channel 42 from the back side to the entry side of the water discharge channel 42. The example formed as described above has been described.

  On the side surface 42f of the water discharge channel 42 of the third embodiment, a guide surface 42g is formed so that the longitudinal dimension, which is the dimension in the longitudinal direction of the water discharge channel 42, increases from the back side to the entry side of the water discharge channel 42. . The guide surface 42g has an arc shape that is curved so as to protrude toward the outside in the slit longitudinal direction A of the water discharge passage 42. The guide surface 42g is provided so as to be positioned on both sides of the slit longitudinal direction A with respect to the water outlet 40b of the water passage 40.

  The water discharge path 42 has a back side area 42 h provided on the back side of the water discharge path 42 from the flow straightening area 42 c in addition to the above-described flow straightening area 42 c provided on the water discharge port 48 side (entrance side) of the water discharge path 42. The guide surface 42g of the water discharge channel 42 is provided in the back side region 42h. In the rectification | straightening area | region 42c, it forms so that the longitudinal dimension of the water discharge path 42 may become the same dimension.

  As described above, water that collides with the front inner wall surface 42b of the water discharge channel 42 flows so as to spread in the slit longitudinal direction A from the collision position (see direction Pc). The water spreading in the slit longitudinal direction A is guided so as to change the flow direction from the slit longitudinal direction to the water discharge port 48 side of the water discharge passage 42 by hitting the guide surface 42g (see direction Pf). At this time, the water spreading in the longitudinal direction of the slit from the collision position with the front inner wall surface 42b of the water discharge channel 42 is smoothly guided by the guide surface 42g without greatly impairing the water force. Thereby, the flow rate can be increased by increasing the flow rate of the water passing through both end portions 42d in the slit longitudinal direction A of the water discharge passage 42.

  As described above, the present inventor has obtained the knowledge that the film-like water 52 is less likely to be squeezed as a whole as the flow rate of water passing through the end portion is larger. Thus, the fact that the flow rate of water passing through both end portions 42d in the slit longitudinal direction A of the water discharge passage 42 can be increased means that the flow rate of water passing through both end portions in the longitudinal direction of the membranous water 52 can be increased. . Therefore, according to the water discharging apparatus 30 of this embodiment, it becomes easy to discharge the clean film-like water 52 with little disturbance in appearance due to the constriction of the film-like water 52.

  In addition, although the guide surface 42g demonstrated the example provided so that it might be located in the both sides of the slit longitudinal direction with respect to the water outflow port 40b of the water flow path 40, you may provide it so that it may be located only in one side.

(Fourth embodiment)
FIG. 14 is a front sectional view of the hand washing apparatus 10 according to the fourth embodiment. 15 is a cross-sectional view taken along the line DD of FIG.
The fourth embodiment relates to the hand washing apparatus 10. The water discharge device 30 of the hand-washing device 10 discharges the membranous water 52 toward the drain hole 26 e of the hand-washing device 26. When a certain amount of time has elapsed after water begins to flow from the branch water supply path 22 to the water flow path 40, the water discharge device 30 is constantly from the water discharge path 42 until water supply to the water flow path 40 from the branch water supply path 22 stops. The membrane water 52 is continuously discharged. At this time, the membranous water 52 continues to flow with almost no change in the flow path or shape. The second constant flow valve 25 (see FIG. 2) of the branch water supply path 22 restricts the water supplied from the upstream tank water supply path 20 to a flow rate equal to or lower than a predetermined flow rate. Thereby, the water discharging apparatus 30 discharges the film-like water 52 having a flow rate equal to the predetermined flow rate while continuously discharging the film-like water 52.

  The drain hole 26e does not receive the film-like water 52 constantly discharged from the water discharge device 30 by the bottom surface part 26c of the bowl part 26a, and passes through the upper end opening 26ea of the drain hole 26e. Is set. Here, the “position” is a relative position of the drain hole 26 e with respect to the water outlet 48 (not shown) of the water discharging device 30. The drain hole 26e of the present embodiment is set to have a slit shape corresponding to the film-like water 52 that is regularly discharged. Thereby, generation | occurrence | production of the splash by receiving the membranous water 52 discharged from the water discharging apparatus 30 in the bottom face part 26c of the hand-washing device 26 can be suppressed, and the splashing of the splash outside the bowl part 26a of the hand-washing device 26 can be prevented.

  In addition, the membranous water 52 tends to squeeze between the time when water is discharged from the water discharging device 30 and the time when it reaches the water. The degree of squeezing of the film-like water 52 when it passes through the upper end opening 26ea of the drain hole 26e is the flow rate of water flowing into the water discharge device 30 from the branch water supply path 22, the structure of the water discharge device 30, and the water discharged from the water discharge device 30. It becomes a size according to various factors such as the height of the hole 26e to the upper end opening 26ea. In this example, the position and shape of the drain hole 26e are set so that the membrane water 52 having a certain degree of constriction passes through the upper end opening 26ea of the drain hole 26e. In addition, the position and shape of the drain hole 26e may be set so that the film-like water 52 having almost no depression passes through the upper end opening 26ea of the drain hole 26e.

  Further, the position and shape of the drain hole 26e are set so that the membrane water 52 that has passed through the upper end opening 26ea of the drain hole 26e is received by a part of its inner wall surface.

  Further, the position and shape of the drain hole 26e are set so that more than half, preferably 90% or more, of the membranous water 52 that is regularly discharged from the water discharge device 30 passes through the upper end opening 26ea of the drain hole 26e. May be.

  As mentioned above, although the example of embodiment of this invention was demonstrated in detail, all the above-mentioned embodiment is only what showed the specific example in implementing this invention. These embodiments do not limit the technical scope of the present invention, and many modifications can be made without departing from the spirit of the invention defined in the claims.

  Although the hand-washing machine 26 demonstrated the example attached to the upper end opening part 16a of the casing 16, the attachment position is not specifically limited. For example, the hand wash basin 26 may be attached to the upper end opening of the tank 18 as a lid, or may be attached to a cabinet counter. In this case, the base to which the handwasher 26 is attached is the tank 18 or the counter. Moreover, the hand-washing machine 26 may be provided by integral molding with the casing 16.

  The water discharging apparatus 30 demonstrated the example attached to the location which faces the front side of the rear wall part 26f of the hand-washing machine 26. FIG. The attachment position with respect to the hand-washer 26 of the water discharging apparatus 30 is not specifically limited. For example, a flat seat surface may be provided at a location facing the upper side of the rear wall portion 26f of the hand-washing device 26 and attached to the seat surface.

  Moreover, although the water discharging apparatus 30 demonstrated the example discharging water downward from the water discharging path 42, it is not limited to this, For example, you may discharge water from the water discharging path 42 sideways.

  Although the example in which the water discharge channel 42 is arranged so as to be in a linear position has been described, the arrangement position is not limited thereto. For example, the water discharge channel 42 may be disposed so as to be in a U-shaped, V-shaped, semicircular, or annular position.

  The example in which the water discharge channel 42 is formed so as to widen the internal space on both sides in the slit longitudinal direction A with respect to the water outlet 40b of the water flow channel 40 has been described. The relative position of the water discharge passage 42 with respect to the water outlet 40b of the water passage 40 is not limited to this. For example, the water discharge channel 42 may be formed so as to expand the internal space only on one side in the slit longitudinal direction with respect to the water outlet.

  The cross section of the water discharge passage 42 has an elongated slit shape in which the dimension in one direction (slit longitudinal direction A) is longer than the dimension in the other direction (slit width direction C). The specific shape is not particularly limited. FIG. 16A is a view of the water discharge channel 42 of the first modified example from the same viewpoint as FIG. 9, and FIG. 16B is a diagram of the water discharge channel 42 of the second modified example from the same viewpoint as FIG. 9. FIG. For example, as shown in FIGS. 16 (a) and 16 (b), in the water channel cross section of the water discharge channel 42, each of the pair of inner wall surfaces 42a and 42b may be arranged non-parallel. In the example of FIG. 16A, one inner wall surface 42a has a curved surface shape that protrudes outward in the slit width direction C, and the other inner wall surface 42b has a linear shape. In the example of FIG. 16B, both of the pair of inner wall surfaces 42a and 42b have a curved surface shape that protrudes inward in the slit width direction C.

  The example in which the lower inner surface of the water passage 40 has the inclined region 40c inclined with an upward gradient toward the water flow direction has been described. The lower inner surface may be provided so as to be horizontal toward the downstream side.

  The housing 34 has been described as a water channel forming body having the water channel 40 and the water discharge channel 42. This water channel formation body demonstrated the example which covers the range other than the water discharge part 44 with the cover 36 arrange | positioned on the outer side of a water channel formation body. In addition, the range other than the water discharge part 44 may be covered by the rear wall part 26f of the hand-washing machine 26, etc. of the water channel formation body. For example, an opening that exposes only the water discharge portion 44 of the water channel forming body is formed in the rear wall portion 26f of the hand basin 26, and the water discharge portion 44 is disposed in the opening so that other portions are not exposed to the outside. Thus, a range other than the water discharge unit 44 may be covered. In addition to this, the water channel formation body may be covered with both the cover 36 and the hand-washer 26.

  Generalizing the invention embodied by the above embodiments and modifications leads to the following technical idea. Hereinafter, description will be made by using aspects described in the problems to be solved by the invention.

The water discharge device according to a second aspect may be configured such that, in the first aspect, the water passage is configured to guide the water flowing in from the upstream water passage along the water passage to the water outlet. Good.
According to this aspect, a structure in which there is no water reservoir in the water passage can be achieved. Therefore, when it is in a standby state in which no membrane water is discharged from the water discharge channel, it is difficult for water to remain in the water discharge device, and it becomes easy to maintain good hygiene.

In the first aspect or the second aspect, the water discharge device according to a third aspect includes a rectification region provided between the water outlet opening at the downstream end of the water discharge path and the water outlet. Also good.
According to this aspect, since it becomes easy to align the velocity vector of the film-like water discharged from the water discharge channel in the slit longitudinal direction, it becomes easy to discharge clean film-like water with little disturbance in appearance.

In one of the first to third aspects, the water discharge device of the fourth aspect may be set such that the water channel cross-sectional area of the water discharge channel is smaller than the water channel cross-sectional area of the water flow channel.
According to this aspect, it becomes easy to continuously fill the water discharge channel with water, and it becomes easy to continuously discharge clean membranous water having a constant longitudinal dimension.

In the water discharge device of the fifth aspect, in any one of the first to fourth aspects, at least one end portion in the slit longitudinal direction of the water discharge channel is formed wider in the slit width direction than the intermediate portion in the slit longitudinal direction. May be.
According to this aspect, it becomes easy to discharge clean film-like water with little disturbance in appearance due to the squeezing of film-like water.

The water discharge device according to the sixth aspect is any one of the first aspect to the fifth aspect, wherein the side surface in the slit longitudinal direction of the water discharge path has the water discharge path as it goes from the back side to the entry side of the water discharge path. A guide surface may be formed so that the longitudinal dimension is widened.
According to this aspect, it becomes easy to discharge clean film-like water with little disturbance in appearance due to the squeezing of film-like water.

A seventh aspect of the present invention is a hand washing apparatus. A hand-washing device according to a seventh aspect includes a hand-washing device and the water discharge device according to the above-described aspect, and water flows into the water passage laterally from the upstream water passage, and a lower inner surface of the water passage is downstream. You may have the inclination area | region which inclines with an upward slope toward the side.
According to this aspect, after the water supply from the upstream water channel is stopped, the period during which water flows out from the water discharge channel can be shortened, and a good appearance can be easily obtained.

The eighth aspect of the present invention is a hand washing apparatus. The hand-washing device of the eighth aspect includes a hand-washing device and the water discharge device of the above-described embodiment, and the hand-washing device has a bowl part and a drain hole formed in the bottom part of the bowl part, The water discharge device discharges the membrane water 52 toward the drain hole, and the drain hole is positioned so that the film water that is regularly discharged from the water discharge device passes through the upper end opening of the drain hole. And the shape may be set.
According to this aspect, generation | occurrence | production of the splash by receiving membranous water in the bottom face part of a hand-washing machine can be suppressed.

DESCRIPTION OF SYMBOLS 10 ... Hand-washing apparatus, 18 ... Toilet bowl, 20 ... Tank water supply path, 26 ... Hand-washing machine, 26a ... Bowl part, 26c ... Bottom part, 26e ... Drain hole, 26ea ... Upper end opening, 30 ... Water discharging apparatus, 40 ... Through Water channel, 40b ... Water outlet, 40c ... Inclined region, 42 ... Water discharge channel, 42a ... Inner wall surface, 42c ... Rectification region, 42d ... End, 42e ... Middle portion, 42f ... Side surface, 42g ... Induction surface, 48 ... Water discharge port 50 ... Water reservoir, 52 ... Membrane water.

Claims (8)

A water discharge device attached to a hand basin, using a tank water supply channel for supplying water to the toilet bowl as a water supply source,
A waterway into which water flows from the upstream waterway,
A slit-like water discharge passage for discharging water flowing out of the water passage,
The water passage has a water outlet opening on one inner wall surface of a pair of inner wall surfaces facing the slit width direction of the water discharge passage,
The water discharge device is characterized in that the water discharge passage is formed so as to expand an internal space in a slit longitudinal direction with respect to the water outlet.   The water discharge device according to claim 1, wherein the water passage is configured to guide the water flowing in from the upstream water passage along the water passage to the water outlet.   The water discharge apparatus according to claim 1 or 2, wherein the water discharge path has a rectifying region provided between a water discharge opening that opens at a downstream end of the water discharge path and the water outlet.   The water discharge device according to any one of claims 1 to 3, wherein a water channel cross-sectional area of the water discharge channel is set to be smaller than a water channel cross-sectional area of the water flow channel.   The at least one edge part of the slit longitudinal direction of the said water discharge path is a water discharging apparatus in any one of Claim 1 to 4 formed in the slit width direction wider than the intermediate part of a slit longitudinal direction.   The guide surface which the longitudinal dimension of the said water discharge path spreads is formed in the side surface of the slit longitudinal direction of the said water discharge path from the back side of the said water discharge path toward the entrance side. The water discharge apparatus of description. Hand wash basin,
A water discharge device according to any one of claims 1 to 6,
Water flows laterally from the upstream water channel into the water channel,
The hand-washing apparatus, wherein the lower inner surface of the water passage has an inclined region that is inclined upward toward the downstream side. Hand wash basin,
A water discharge device according to any one of claims 1 to 6,
The hand-washing machine has a bowl part and a drain hole formed in the bottom part of the bowl part,
The water discharge device discharges membranous water toward the drain hole,
The drainage hole is a hand-washing apparatus in which a position and a shape are set so that film-like water regularly discharged from the water discharger passes through an upper end opening of the drainage hole.

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