JP6556453B2 - shower head - Google Patents

Description

  The present invention mainly relates to a shower head used in a bathroom.

  In this type of shower head, when shower use is completed, the shower head is supported diagonally downward on a hanger on the bathroom wall surface. At this time, the hot water accumulated in the water sprinkling holes and the shower head drips little by little over a long period of time even though the water is stopped. For this reason, for example, it is often mistaken for a forgetting to close or a water leak although it is not a forgetting to close the stopper or a water leak due to a defective valve.

In order to solve such a problem, the techniques of Patent Documents 1 to 3 have been proposed.
In the technique of Patent Document 1, the inner peripheral surface of the water spray hole of the shower head is roughened. This roughening increases the surface area of the inner peripheral surface of the water spray holes, thereby increasing the water retention capacity and preventing dripping of water.

  In the technique of Patent Document 2, a mesh is disposed inside the shower head so as to cover the water spray holes, and the mesh is held using a mesh presser. It is said that a water film is formed in the mesh to prevent water from dropping and water drainage is improved.

  In the technique of Patent Literature 3, an annular drain groove communicating with the lowermost water spray hole is formed on the inner surface of the shower head of the water spray plate having the water spray holes. The residual water inside the shower head is guided to the lowermost sprinkling hole by the drainage groove and is quickly discharged to the outside from the lowermost sprinkling hole.

JP-A-7-265744 JP-A-9-85132 JP 2009-273701 A

  However, in the configuration of Patent Document 1, since the rough surface processing of the inner peripheral surface of the water spray hole is performed by sandblasting by shot peening, there are many water spray holes, and the rough surface processing is troublesome. It takes.

  In the configuration of Patent Document 2, since a mesh and mesh presser are necessary, not only the number of parts is increased, but also when using a shower, the mesh becomes a resistance to water flow, making it difficult to obtain a shower with a beam-like momentum. . Therefore, it becomes difficult to make the shower excellent in usability. Furthermore, the hot and cold water held on the mesh may hang down gradually. In such a case, the problem of dripping over the long time cannot be solved.

  In the configuration of Patent Document 3, even if a drainage groove that guides residual water to the lowermost sprinkling hole is provided, smooth drainage is difficult if the lowermost sprinkling hole has a small diameter. That is, the collected residual water is intensively discharged from the lowermost sprinkling holes, so that the drooping state for a long time occurs unless the diameter of the lowermost sprinkling holes is increased. Moreover, since there is a restriction on the size of the water spray holes, there is a possibility that a comfortable shower cannot be obtained.

  The present invention has been made paying attention to such problems existing in the prior art. An object of the present invention is to provide a shower head capable of smoothly discharging residual water in a short time with a simple structure.

In order to achieve the above object, in the present invention, in a shower head in which water spray holes are formed in the water spray plate, a groove extending from an edge of the water spray hole is provided on the outer surface of the water spray plate . The outlet is formed with a large-diameter portion whose diameter is larger than the diameter of the portion other than the outlet of the watering hole, and the groove is formed with a width narrower than the diameter of the large-diameter portion. .

  In the said structure, the residual water in a sprinkling hole can be drawn out with the hot water in a groove | channel, and can be discharged | emitted smoothly in a short time. Therefore, it is possible to prevent the residual water in the shower head from dripping for a long time after the water stops. And since the structure for that only formed the groove | channel, the number of parts does not increase.

  According to the present invention, it is possible to smoothly discharge residual water with a simple structure.

The perspective view of the shower head of an embodiment. The longitudinal cross-sectional view of a shower head. The front view of a watering board. Sectional drawing of the part of a watering hole. The front view which shows the example of a change which made multiple grooves. Sectional drawing which shows the example which changed the cross-sectional shape of the groove | channel. The front view which shows the example of a change which added the groove | channel which faces a radiation direction. The partial front view which shows the example of a change which has the groove | channel which faces a radial direction. The partial front view which shows the example of a change which formed the some groove | channel in one watering hole. Sectional drawing which shows the example of a change which deepened the groove | channel.

Hereinafter, embodiments of a shower head embodying the present invention will be described with reference to FIGS.
As shown in FIGS. 1 and 2, the shower head 11 of this embodiment is connected to the tip of a water supply hose 12. And the shower head 11 is supported by the hanger 2 of the wall surface 1 of a bathroom in the diagonally downward state in the joint 3 in the lower part of the holding part 13 at the time of non-use of a water stop state.

  As shown in FIGS. 1 to 3, a watering plate 16 is provided in front of a head portion 15 of a housing 14 that forms an outer shell of the showerhead 11, and shower water is discharged to the watering plate 16. For this purpose, small and large water spray holes 17 and 18 are pierced in a position on the outer peripheral side and a position on the center side. Further, inside the housing 14, a partition member 21 that is mounted to face the watering plate 16 and a gripping portion 13 of the housing 14 are arranged, and water, hot water, or hot / cold water (hereinafter referred to as hot water and hot water). And an inner pipe 22 that forms a general flow path). Then, hot water from the water supply hose 12 passes through the inner pipe 22 and is supplied into the discharge chamber 23 partitioned between the water spray plate 16 and the partition member 21, and is discharged from the water spray holes 17 and 18 as a shower. Is done.

  As shown in FIGS. 1 and 3, the water spray hole 17 on the outer peripheral side has a large diameter, and the water spray hole 18 on the center side has a small diameter. A means (not shown) is provided on the inner surface of the water spray plate 16 so that the shower from the water spray hole 17 having a large diameter spreads conically, corresponding to the water spray hole 17 having a large diameter. As shown in FIG. 4, a large-diameter portion 171 is formed at the outlet of the sprinkling hole 17 to allow the conical spread of the shower. The maximum diameter portion of the small-diameter sprinkling hole 18 is formed to have a smaller diameter than the minimum diameter portion of the large-diameter sprinkling hole 17.

  As shown in FIG. 3, the large-diameter sprinkling holes 17 are arranged in an annular region on the outer peripheral portion of the sprinkling plate 16. An annular groove 19 is formed on the outer peripheral portion of the water spray plate 16 so as to connect the water spray holes 17 to each other. The groove 19 has a narrower width than the diameter of the large-diameter portion 171 of the water spray plate 16 and has a triangular cross section as shown in FIG.

Next, the operation of the shower head 11 configured as described above will be described.
When using the shower, hot water is sprinkled from the sprinkling holes 17 and 18 as a shower. Then, after the shower is finished, the shower is stopped and the shower head 11 is supported obliquely downward on the hanger 2 of the wall surface 1 of the bathroom as shown in FIG.

  At this time, hot water often remains in the water spray holes 17 and 18 and the discharge chamber 23. At this time, the hot water in the groove 19 flows down while pulling out the residual water in the large-diameter sprinkling hole 17 or rapidly flows down along the groove 19 and flows down from the lower end of the groove 19 to the outside. That is, a part of the hot water on the upper side and the lower side in the groove 19 flows out of the groove 19 while drawing hot water in the sprinkling hole 17 and hot water in the discharge chamber 23 from the upper side of the groove 19. The remaining part flows down along the groove 19 while pulling out the hot water in the sprinkling hole 17 and the hot water in the discharge chamber 23, and flows out of the groove 19 from the lower end of the groove 19.

  Therefore, not only the residual water in the upper sprinkling hole 17 but also the residual water in the lower sprinkling hole 17 and further the residual water in the discharge chamber 23 are drawn to the outside rapidly and smoothly and flow down to the outside. Therefore, the hot water in the water sprinkling hole 17 and the head part 15 is discharged within a short time, and a state of dripping over a long time can be avoided.

Residual water in the small-diameter sprinkling hole 18 is retained in the sprinkling hole 18 because the sprinkling hole 18 has a small diameter.
Therefore, this embodiment has the following effects.

  (1) The residual water in the sprinkling hole 17 and the discharge chamber 23 can be drawn out by hot water in the groove 19 and discharged smoothly. Therefore, it is possible to prevent the residual water in the shower head 11 from dripping for a long time after the water stops. For this reason, it is possible to prevent misidentification such as forgetting to close the stopper.

  (2) Since the structure for that only forms the groove | channel 19 extended from the edge of the watering hole 17 in the outer surface of the watering board 16, unlike patent document 1, the special process like shot peening is unnecessary. It is. Unlike Patent Document 2, parts such as a mesh are not necessary, and the number of parts does not increase. Therefore, the manufacturing is easy and the configuration is simple. Further, unlike Patent Document 3, it is not necessary to increase the diameter of the water spray hole 17 in order to smoothly drain water from the water spray hole 17.

  (3) Since the groove 19 is formed so as to connect the sprinkling holes 17, the hot water in the single groove 19 can move to the lower side of the groove 19 while pulling out the hot water in each sprinkling hole 17. The hot water is effectively drawn out from the water spray hole 17.

The present invention is not limited to the embodiment described above, and may be embodied in the following aspects.
-As shown in FIG. 5, make the groove | channel 19 between the sprinkling holes 17 into two, and arrange them concentrically. In this way, the residual water is discharged more smoothly through the two grooves 19. The groove 19 may be three or more.

-Make the width of the groove 19 the same as the maximum diameter of the water spray hole 17. Or make it wider than the maximum diameter.
As shown in FIG. 6, the groove 19 has a cross-sectional shape such as a semicircular shape or a semi-elliptical shape. That is, the groove 19 has a shape in which no corner is formed at the bottom. In this way, residual water is discharged more smoothly. Or although not shown in figure, the cross-sectional shape of the groove | channel 19 is made into a square. Thus, if the cross-sectional shape of the groove 19 is made to be a quadrangle, the cross-sectional area of the groove 19 becomes large, and the residual water is smoothly discharged.

  As shown in FIG. 7, in addition to the annular groove 19, a short groove 20 extending from each sprinkling hole 17 is formed. In this case, the groove 20 may extend in the vertical direction, or may extend in the radial direction of the water spray plate 16. Further, as indicated by a two-dot chain line, the groove 20 may be extended to the outer periphery of the water spray plate 16. In this way, the residual water can be discharged more smoothly. As described above, the cross-sectional shape of the groove 20 may be any of a triangle, a quadrangle, a semicircle, a semi-ellipse, and the like.

  As shown in FIG. 8, instead of the annular groove 19, a short groove 20 extending from each water spray hole 17 is formed. In this case, the groove 20 may extend in the vertical direction or the radial direction of the water spray plate 16.

As shown in FIG. 9, a plurality of short grooves 20 extending from each sprinkling hole 17 are formed.
-Do not form the large-diameter portion 171 of the opening of the large-diameter sprinkling hole 17.
As shown in FIG. 10, the groove 19 (or groove 20) is formed to a depth that reaches the water spray hole 17. If comprised in this way, residual water will be further discharged | emitted smoothly through the groove | channel 19 (or groove | channel 20). In the case of FIG. 10 and FIG. 9 as well, the cross-sectional shape of the grooves 19 and 20 may be any of a triangle, a quadrangle, a semicircle, a semi-ellipse, etc. as described above.

  DESCRIPTION OF SYMBOLS 11 ... Shower head, 16 ... Sprinkling plate, 17 ... Sprinkling hole, 18 ... Sprinkling hole, 19 ... Groove, 20 ... Groove.

Claims (6)

In the shower head in which watering holes are formed in the watering plate,
A groove extending from the edge of the watering hole is provided on the outer surface of the watering plate,
The outlet of the watering hole is formed with a large diameter part having a larger diameter than the diameter of the part other than the outlet of the watering hole ,
The groove is a shower head formed with a width narrower than the diameter of the large diameter portion. In the shower head in which watering holes are formed in the watering plate,
A groove extending from the edge of the watering hole is provided on the outer surface of the watering plate ,
The shower head which provided the thing of a large diameter and the thing of a small diameter as said watering hole, and connected the said groove | channel only to the watering hole of a large diameter . The shower head according to claim 1 or 2 , wherein the groove connects a plurality of water spray holes. The shower head according to claim 3 , wherein the groove has an annular shape. The shower head according to any one of claims 1 to 4 , wherein a plurality of the grooves are provided for one water spray hole. The shower head according to claim 1, wherein a large-diameter hole and a small-diameter hole are provided as the water spray holes, and the grooves are connected to the large-diameter water spray holes.