JP2003024832A - Shower head - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shower head improved to increase the discharge water force in the discharge of water by the operation of a switch piece in the shower head capable of switching the discharge and the stoppage of water by the operation of the switch piece provided in the shower head. SOLUTION: When the rear half side of a switch piece 120 is pressed, a lever 110 pulls up a control valve body 100 with a mover to separate the control valve body from a small hole 94. As a result, an inner tube is opened through a communicating hole 98 and the small hole 94, water in a control section of a water stop valve is discharged into the shower head and the water stop valve is opened to discharge water from the shower head. When the rear half side of the switch piece 120 is pushed-in with a finger or the like in a tap water discharge state (weak), the outer peripheral edge of the valve body 80 is seated to a valve seat 82 and a circular part 84 is in contact with the upper end of a partition cylinder 26. As a result, the inside of a tap water discharge section 40 communicates only with the inside of a 1st flow out part 22 through a water feed hole 86. Then water is discharged with a strong force from the 1st flow out part 22.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shower head, and more particularly to a shower head equipped with a switch piece for switching water discharge and water stoppage. More specifically, the present invention relates to a shower head configured so that the discharge water force can be strengthened by operating the switch piece.

[0002]

2. Description of the Related Art As a conventional shower apparatus installed in a bathroom or a shower room, a shower head connected to a hot and cold water mixing faucet having a water and hot water operation handle via a shower hose is widely used. . As this type of shower device, there is a shower device provided with a shower head changeover switch so that discharge / stop of shower water can be switched by operating the switch without touching a hot water operation handle. . For example, JP-A-11-
In 197552, a water stop valve including a piston valve and a diaphragm is provided in the middle of a flow path from a hot water supply source such as a hot and cold water mixing faucet to a discharge portion such as a shower head, and a secondary side of the water stop valve is provided. The inner tube in a flow path such as a shower hose connecting the discharge section and the discharge section, the other end of the inner tube is opened in the flow path near the discharge section, and the other end of the inner tube is opened and closed. A shower device is described in which an operating portion is provided near the discharge portion.

FIG. 7 is a basic configuration diagram of the shower device described in the above publication, in which a piston valve is provided between a discharge portion J such as a shower head and a hot and cold water supply source such as a hot and cold water mixing faucet (not shown). A water shutoff valve P is provided, and an inner tube N is installed in a flow passage M that connects the secondary side of the water shutoff valve P and the discharge portion J. The water shutoff valve P opens and closes the flow path by moving up and down with respect to the valve seat T. A control room R is formed on the head side of the water shutoff valve P, that is, at a site opposite to the valve seat T, and the control room R is provided through a water passage small hole S provided at an appropriate position of the water shutoff valve P. , Communicates with the primary side (hot water supply source) of the water shutoff valve P.

The inner tube N is constructed such that the base end thereof communicates with the control chamber R through a communication passage Q provided in the water shutoff valve P, and the tip end side is inside the flow passage M. It is opened near the discharge part J. A control valve K is provided on the distal end side of the inner tube N, and an operating portion L thereof is provided near the discharge portion J.

In the shower device constructed as described above, when the shower is used, the control valve K is opened by the operating portion L provided near the discharge portion J, and the tip portion of the inner tube N is opened. Then, the control room R formed at the head of the water shutoff valve P
The water inside is discharged through the inner tube N.
As a result, the water stop valve P rises and separates from the valve seat T to open the flow path, so that shower water is discharged from the discharge part J.

To stop the water in the shower, the control valve K is operated by the operating portion L near the discharge portion J to close the tip portion of the inner tube N. Then, water flows into the control chamber R from the water passage S formed in the water stop valve P, the water stop valve P descends and sits on the valve seat T, and the discharge of shower water from the discharge part J is stopped. To be done. In this way, by opening and closing the control valve K by the operation portion L provided near the discharge portion J, discharge / stoppage of shower water can be switched.

[0007]

DISCLOSURE OF THE INVENTION The present invention is designed to switch between water discharge and water stop by operating a switch piece provided on a shower head. Furthermore, the discharge water pressure at the time of water discharge can be changed by operating this switch piece. It is an object to provide an improved shower head that can be made stronger.

[0008]

A showerhead according to the present invention is a showerhead having a switch piece for switching water discharge and water stoppage, wherein the switch piece is further pushed in a state where water discharge is selected by the switch piece. It is characterized by being provided with a water flow strengthening mechanism for strengthening the discharge water flow.

According to such a shower head, when the switch piece is pushed in at the time of water discharge, the discharge water force becomes strong, so that the water can be strongly applied to a narrow place such as a corner of a bathroom. It can also be applied to the body to obtain a strong massage effect.

This strengthening of the water pressure is performed by pushing the switch piece provided on the shower head, and it can be performed by the hand holding the shower head, which is extremely convenient. Further, since the water force is not strengthened when the switch piece is not pushed in, the water force does not unexpectedly become strong at the start of water discharge.

In the shower head of the present invention, it is preferable that the shower head is provided with a water discharge switching means between the shower and the Karan, and the water flow strengthening mechanism strengthens the discharge water flow of the Karan water discharge. By strengthening the water discharge from the currant, it is possible to strongly wash the corners of the bathroom. In addition, it is possible to obtain a strong hitting water-like massage effect.

It is preferable that the water flow strengthening mechanism narrows the opening area of the Karan spout of the shower head. In particular,
It is preferable that a plurality of outflow portions are provided at the Karan spout, and the water pressure strengthening mechanism includes a valve body that closes a part of the outflow portions by pushing the switch piece. In particular,
It is preferable that an elastic body is provided for urging the valve body in the valve opening direction, and the valve body is opened by the urging force of the elastic body when the pushing of the switch piece is released.

Further, the curran discharge port is provided with a first outflow portion in the central portion and a second outflow portion arranged on the outer periphery of the first outflow portion, and the second outflow portion in the shower head. A valve seat is provided along the outer periphery of the valve body, the valve body has a water passage hole in the center, the outer peripheral portion can be seated on the valve seat, and the outer peripheral portion is seated on the valve seat. In the state, the second
It is preferable that the outflow portion is closed and the water passage is in communication with the first outflow portion.

A valve shaft rod connected to the valve body extends to the vicinity of the switch piece, and when the switch piece is operated toward the water discharge side, the switch piece contacts the tip of the valve shaft rod. It is preferable that the valve element is moved from this state by pushing the switch piece to close the part of the outflow portion.

In the present invention, it is preferable to provide a positioning spring for selectively stopping the switch piece between the water discharge selection position and the water stop selection position.

[0016]

DETAILED DESCRIPTION OF THE INVENTION Embodiments will be described below with reference to the drawings. 1 is a vertical sectional view of the shower head according to the embodiment when water is stopped, FIG. 2 is a sectional view taken along line II-II of FIG.
Is shower water, Karan (weak) Water discharge, Karan (strong)
FIG. 6 is a schematic side view of a switch lever when water is discharged.

This shower head has a cylindrical grip 1.
Main body casing 10 having a handle portion 10a to which 2 is connected
And the cap casing 14 screwed to the main body casing 10 constitute an outer shell (casing).

A water inlet 16 is provided in the handle portion 10a, and a shower water outlet 18 and a Karan water outlet 20 are provided in the central portion of the cap casing 14. The Karan spout 20 has a first outflow portion 22 at the center and a second outflow portion 22 at the outer periphery thereof.
And an outflow portion 24, which are partitioned by a cylindrical partition 26.

In the cap casing 14, a cylindrical partition wall 32 for partitioning the currant water discharge port 20 and the shower water discharge chamber 30 is provided upright from the front end surface of the cap casing 14, and this shower water discharge chamber is provided. A large number of shower water discharge holes 32 communicating with 30 are provided on the tip surface of the cap casing 14.

A partition plate 36 for separating the inlet 16 side and the water outlet side is installed in the main body casing 10. From the lower surface side of the partition plate 36 in the drawing, a substantially cylindrical partition wall 3 is formed.
8 is projectingly provided, and the lower end (tip in the protruding direction) of the partition wall 38 is engaged with the upper end (tip in the standing direction) of the partition wall 32. The inside of the partition wall 38 is a Karan water discharge chamber 40, and the Karan water discharge chamber 40 is connected to the Karan water discharge port 20.
Is in communication with.

As shown in FIG. 2, the partition plate 36 has a shower communication port 42 for communicating the shower spout chamber 30 with the inlet port 16 and a curran communication port for communicating the currant spout chamber 40 with the inlet port 16. A port 44 is provided, and a butterfly valve 46 for opening only one of the communication ports 42, 44 is arranged on the upper surface side (upstream side) of the partition plate 36.

The butterfly valve 46 has a substantially V shape (obtuse V shape), and a central fulcrum portion 46a is rotatably supported by the partition plate 36 by a fulcrum shaft (not shown). . As shown in FIG. 2, one blade side 46 b of the butterfly valve 46 can close the communication port 42 and the other blade side 46 c of the butterfly valve 46 can close the communication port 44.

An operating shaft 50 for operating the butterfly valve 46 penetrates the body casing 10. The operation shaft 50 has a length that is slightly longer than the width of the main body casing 10, and its tip projects from the side surface of the main body casing 10. When the tip of the finger is pressed by the fingertip, the finger shifts in the direction perpendicular to the plane of FIG.

An operating body 52 is mounted on the operating shaft 50. The operating body 52 is a tubular body having an open upper end and a closed lower end, and a notch provided at the upper end has an operating shaft 5
It is fitted to 0. A coil spring 54 is interposed between the bottom surface of the operation body 52 and the operation shaft 50 in a force accumulation state.
The operating body 52 is constantly pressed downward (toward the partition plate 36) by the coil spring 54. This operating body 52
Has a lower end slidably contacting the upper surface of the butterfly valve 46.

When the operating shaft 50 is shifted to the arrow A side as shown in FIG. 2A, the operating body 52 presses the other wing side 46c of the butterfly valve 46 to press it against the partition plate 36 and close the communication port 44 for the calan. To do. Thereby, the shower water discharge is selected.

When the operating shaft 50 is shifted to the arrow B side opposite to the arrow A as shown in FIG. 2B, the operating body 52 pushes one wing side 46b of the butterfly valve 46 and pushes it against the partition plate 36 for showering. The communication port 42 is closed. As a result, the Karan spouting is selected.

A guide cylinder 60 is vertically projected from the main casing 10 toward the center of the partition plate 36.
The lower end (tip in the protruding direction) of the guide cylinder 60 is in contact with the partition plate 36. The guide tube 60 is provided at the center of the partition plate 36.
An opening is provided coaxially with, and a short tube 62 that stands upward from the edge of the opening and enters the guide tube 60 is provided upright.

The body casing 10 has the guide cylinder 6
An opening 64 is provided coaxially with 0. This opening 64
The valve shaft rod 70 is slidably disposed through the guide cylinder 60 and the short cylinder 62. An O-ring 72 for watertightly sealing between the inner peripheral surface of the guide cylinder 60 and the outer peripheral surface of the valve shaft rod 70 is attached to the valve shaft rod 70.

An enlarged diameter portion 74 is provided in the middle of the valve shaft rod 70, and a coil spring 76 is interposed between the enlarged diameter portion 74 and the short cylinder 62 in a force-accumulating state. This allows
The valve stem 70 is always biased upward in FIG.
The valve shaft rod 70 is provided with a flange portion 78, and the position where the flange portion 78 abuts the lower surface of the partition plate 36 is the upper movement limit of the valve shaft rod 70.

A valve body 80 is integrally provided at the lower end of the valve shaft rod 70. The valve body 80 is provided on the inner peripheral surface of the partition wall 38.
Is provided with a valve seat 82 with which the outer peripheral edge of (abuts).

A ring portion 84 is provided so as to project from the center of the lower surface of the valve body 80, and when the valve body 80 is seated on the valve seat 82, the ring portion 84 is formed on the upper end surface of the cylindrical partition tube 26. It is configured to abut.

The valve body 80 is provided with a water passage hole 86 for communicating the lower side and the upper side thereof.

The main body casing 10 is provided with a control valve device 90 for controlling the hydraulic control type water shutoff valve (water shutoff valve P in FIG. 6) to the shower head. The control valve device 90 includes a cylindrical housing 92, a small hole 94 provided in the housing 92, a tube connecting body 96 installed in the housing 92, and the tube connecting body 9
6, a tube (inner tube) extending from the inlet 16 through the grip 12 and the shower hose to the water supply valve, a control valve body 100 for opening and closing the small hole 94, and the like. The tube connection body 94 is provided with a communication hole 98 for communicating the inside of the tube with the small hole 94 of the housing 92. Housing 9
2 is fixed to the inner surface of the main body casing 10.

The control valve body 100, which is made of rubber, is attached to the moving element 102, and together with the moving element 102, the holding hole 1
It is inserted in 04. The holding hole 104 is provided in the main body casing 10, and the control valve body 100 slidably and watertightly contacts the inner peripheral surface of the holding hole 104.

A lever 110 for advancing and retracting the moving element 102 in the axial direction of the holding hole 104 is provided with a supporting member 111.
Is attached to. The middle of the lever 110 in the longitudinal direction is supported by the first support 111a of the support member 111 by the support shaft 112, and can swing in a seesaw shape. Fork part 110 on the tip side of this lever 110
a is engaged with the neck portion 102 a of the moving element 102.
One end side of the tension coil spring 114 is connected to the tip end side of the lever 110, and the other end side of the tension coil spring 114 is connected to the second support 111b of the support member 111. The support member 111 is fixed to the main body casing 10. As a result, the lever 110 pulls the moving element 102 such that the moving element 102 is pushed down (FIGS. 1 and 6 (a)) and the moving element 102 is pulled up (FIGS. 3 and 6 (b)). It is biased by the coil spring 114.

When the mover 102 is pulled up (FIG. 3), the rear end of the lever 110 contacts the upper end of the valve shaft 70. When the mover 102 is pushed down, as shown in FIG. 1, the front end 120f of the switch piece 120 comes into contact with the upper surface of the front portion of the main body casing 10.

An opening 1 provided at the rear end side of the lever 110
The hook portion 122 of the switch piece 120 is engaged with 10b. The switch piece 120 corresponds to the lever 110.
The main body casing 10 is swingably supported in a seesaw shape by a shaft body (not shown) coaxial with the support shaft 112.
The switch piece 120 is provided with a protrusion 124 that presses the rear end of the lever 110.

The operation of the shower head having the above structure will be described below.

FIG. 1 shows a water stop state in which the latter half side (left half side in FIG. 1) of the switch piece 120 is not pushed. In this state, the control valve body 100 closes the small hole 94 of the housing 92. Therefore, the tube (inner tube)
The inside is in a sealed state, and the water shutoff valve on the upstream side of the shower hose (water shutoff valve P in FIG. 7) is closed. Therefore, the shower head is in a water-stop state. Of course, the operation axis 5
Even if 0 is shifted in either A or B direction, the water is still stopped.

When the latter half of the switch piece 120 is pushed in the state of FIG. 1, the lever 110 pulls up the control valve body 100 via the mover 102 as shown in FIG.
Move away from 4. As a result, the inner tube is opened through the communication hole 98 and the small hole 94, the water in the control chamber of the water shutoff valve (control room R in FIG. 7) is discharged into the shower head, and the water shutoff valve is opened. Then, water is discharged from the shower head. In FIG. 3, the callan communication port 44 is closed by a butterfly valve 46, and water (which may be hot water) enters the shower spout chamber 30 through the shower communication port 42 and becomes a shower through the shower spout hole 32. To discharge.

When the operation shaft 50 is shifted in the direction B of FIG. 2 to open the water outlet 44 for currant and to close the communication port 42 for shower, curlan water is discharged as shown in FIG. In addition, as a matter of course, this shift of the operation shaft 50 is performed by the switch piece 120.
It may be performed before pressing the latter half side, or may be performed during the shower spouting in FIG.

In FIG. 4, the valve body 80 is pushed up and water is discharged from both the first outflow portion 22 and the second outflow portion 24 of the Karan water outlet 20, so the water discharge water pressure is weak.

Incidentally, as shown in FIGS.
When the latter half side of is pushed, the lever 110 and the switch piece 120 maintain the states of FIGS. 3 and 4 by the biasing force of the tension coil spring 114. Therefore, the water discharge continues even if the hand is released from the switch piece 120.

In the Karan spouting (weak) state shown in FIG. 4, the latter half of the switch piece 120 is pushed in by a fingertip or the like, and the state shown in FIG.
In this state, the outer peripheral edge of the valve body 80 is seated on the valve seat 82, and the ring portion 84 contacts the upper end of the partition tube 26. As a result, the inside of the Karan water discharge chamber 40 communicates only with the inside of the first outflow portion 22 via the water passage hole 86. Therefore, the water is discharged from the first outflow portion 22 with a strong water force.

The switch piece 12 in the strong water discharge state of FIG.
When the fingertip is released from the left half side of 0, the valve shaft rod 70 is pushed up by the repulsive force of the coil spring 76, and returns to the weak currant water discharge state of FIG.

In the state shown in FIGS. 3 and 4, the switch piece 120
Pressing the right half side of returns to the water-stop condition shown in FIG.

As described above, according to this embodiment, the water discharge and the water stop from the shower head can be operated by the operation of the switch piece 120, and the second half of the switch piece 120 can be pushed by pushing the second half of the water during the water discharge of the callan. It is possible to discharge water with a strong water force only from the first outflow portion 22. By using this strong water discharge, it is possible to strongly wash the corners of the bathroom and the like, and it is also possible to apply a strong massage effect to the body. When the water is stopped, this strong water discharge is automatically canceled, and the water discharge is inevitably the next time Karan water discharge starts. Therefore, unexpected strong water discharge does not occur.

The above embodiment is an example of the present invention, and the present invention may have a configuration other than that shown in the drawings. For example, the switch piece may be provided in another part of the shower head.
Further, the control valve body 100 is made non-watertight with respect to the holding hole 104, and instead, an O ring (not shown) is provided on the moving element 102, and this O ring slides in a watertight manner on the inner peripheral surface of the holding hole 104. It may be configured to move.

[0049]

As described above, according to the shower head of the present invention, the switch head provided on the shower head is used to switch between water discharge and water stop, and further, when the switch piece is operated, water is discharged. It is possible to increase the discharge water force at.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a shower head in a water-stopped state according to an embodiment.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is a sectional view of the shower head according to the embodiment when water is discharged from the shower.

FIG. 4 is a cross-sectional view of the shower head according to the embodiment when water is discharged (weak).

FIG. 5 is a cross-sectional view of the shower head according to the embodiment when water is discharged (strong).

FIG. 6 is a side view of a lever and its supporting member.

FIG. 7 is a configuration diagram of a hand-operated shower device.

[Explanation of symbols]

10 Main body casing 14 Cap casing 20 Karan spout 22 First outflow part 24 Second outflow section 26 septum 30 shower spout 32 shower spout 36 Septa 38 partitions 40 Karan spout chamber 50 operation axis 70 valve stem 76 coil spring 80 valve 82 seat 84 ring 86 water holes 90 Control valve device 94 small holes 100 control valve 102 mover 110 lever 111 Support member 112 spindle 114 tension coil spring 120 switch pieces

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Claims (8)

[Claims] 1. A shower head having a switch piece for switching between water discharge and water stop, comprising a water force strengthening mechanism for strengthening the discharge water force by further pushing the switch piece when water discharge is selected by the switch piece. Shower head characterized by that. 2. The shower head according to claim 1, wherein the shower head is provided with a water discharge switching means for switching between a shower and a karan, and the water flow strengthening mechanism strengthens the discharge water flow of the karan water discharge. . 3. The shower head according to claim 2, wherein the water flow strengthening mechanism is a mechanism that narrows an opening area of a Karan spout of the shower head. 4. The water flow strengthening mechanism according to claim 3, wherein a plurality of outflow portions are provided at the currant spout.
A shower head comprising a valve body for closing a part of the outflow portion by pushing the switch piece. 5. The valve body according to claim 4, further comprising an elastic body for urging the valve body in a valve opening direction, the urging force of the elastic body when the pushing of the switch piece is released. Shower head characterized by opening the valve. 6. The inside of the shower head according to claim 5, wherein the curran discharge port includes a first outflow portion at a central portion and a second outflow portion arranged on an outer periphery of the first outflow portion. A valve seat is provided along the outer periphery of the second outflow portion of the valve body, the valve body has a water passage hole in the center, the outer peripheral portion can be seated on the valve seat, and the outer peripheral portion is In the state of being seated on the valve seat, the second outflow portion is closed and the water passage hole has the first
Shower head characterized by communicating with the outlet. 7. The state according to claim 4, wherein the valve shaft rod connected to the valve body extends to the vicinity of the switch piece, and the switch piece is operated toward the water discharge side. Then, the switch piece comes into contact with the tip of the valve shaft rod, and the switch piece is pushed in from this state to move the valve body to close the part of the outflow portion. 8. The positioning spring according to claim 1, further comprising a positioning spring for selectively stopping the switch piece between a water discharge selection position and a water stop selection position. And a shower head.