JPH09299832A - Shower head - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make operability improve by enabling the changeover of channels by one hand by constituting a channel from an end connection part to a head main body which is supplied associated with the rotation-movement action of a channel changeover member to either the first channel member or the second channel member. SOLUTION: When an operation knob 35 for making city water flow out directly is movement-operated to a raw water side, a rotation movement shaft 31 is rotation moved, the notch part 43d of a changeover cylinder part 43a is made to agree with the opening part 41f of a fixing member 41, and the opening part 41e of the member 41 is made to be closed by the non-notch part 43e of the part 43a. Accordingly, city water supplied from a hose end connection part is made to spout from a head main body. Besides, when the knob 35 is movement-operated to a water purification side, the part 43d of the part 43a is made to agree with the part 41e of the inside cylinder part 41b, an opening part 41f is closed by the part 43e of the part 43a, and after being water-purified by a water purification member 21 passing through the first channel member 11 to be made to flow out in a shower shape.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shower head mounted on a wash basin, a bathroom or the like, and more particularly to a raw water which is the tap water that is discharged and a purified water from which the contained chlorine content is removed. A shower head that can be switched.

[0002]

DISCLOSURE OF THE INVENTION In the shower head disclosed in Japanese Utility Model Registration No. 3007614, for example, a dechlorination chamber and a normal flow path are provided in parallel, and in the upstream part of these flow paths. It has a structure provided with a switching valve for switching water flow from one flow passage to the other flow passage. The switching valve is rotatably supported on the front flow portion of the shower head, and the rotational operation allows the through holes to be selectively aligned with the flow paths to switch the flow paths.

However, since the above-mentioned flow passage switching mechanism is provided in the front flow portion (the side of the tap water of the shower head) of the shower head, the shower head main body is held by one hand in order to switch the flow passage. The other hand had to rotate the switching valve connected to the tap water hose, and the operability was poor.

Also, during use, the angle of use of the showerhead body with respect to the hose of tap water changes,
There is a problem that the flow path is easily switched during use, and desired water cannot be obtained.

Further, since the above-mentioned shower head is attached to the front portion of the head body so as to rotate the switching valve to which the hose from the tap water is connected, the shower head is attached to the inflow end portion of the head body during use. It has a problem that it is easily damaged due to excessive force.

The present invention has been invented in order to solve the above-mentioned conventional drawbacks, and its object is to provide a shower head which can switch the flow path with one hand and is excellent in operability. To do.

Another object of the present invention is to provide a shower head which can prevent the flow paths from being switched during use and can stably discharge desired water.

Still another object of the present invention is to provide a shower head having excellent durability.

[0009]

Therefore, according to the present invention, there is provided a grip portion having one end provided with a connection port for a hose, and the other end portion of the grip portion being detachably attachable and airtightly attached to the tip end. A head main body to which a shower plate having a large number of through holes formed therein is attached, a first flow path member coaxial with the inside of the grip portion, and having a hollow interior inserted so as to be insertable into the connection port portion and the first flow path member. The two flow path members, the water purification member contained in one of the first and second flow path members, the head main body and the end of the second flow path member are respectively fitted and inserted into the first and second flow path members. A fixing member in which a plurality of openings are alternately provided in each partition wall facing each flow path of the member at a required interval, and the partition member is rotatably inserted between each partition wall and each partition wall. Or a flow path switching member having an opening that selectively communicates with the opening in the head body and communicates with the inside of the head body. Make up the shower head.

The opening is selectively aligned with the opening of the fixed member facing the first or second flow path member in accordance with the turning operation of the flow path switching member.

Now, when the opening of the flow path switching member is operated so as to coincide with the opening of the fixed member facing the first flow path member containing the water purification member, for example, it is supplied from the hose connection port. Water is purified by the water purification member and then discharged from the head body. On the contrary, when the opening of the flow path switching member is operated so as to coincide with the opening of the fixing member facing the second flow path member, the water supplied from the hose connection port is directly discharged from the head main body. .

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.

Embodiment 1 FIG. 1 is a central longitudinal sectional view of a shower head.

FIG. 2 is a partially cutaway exploded perspective view showing the flow path switching structure.

FIG. 3 is an enlarged vertical sectional view of the flow path switching structure.

FIG. 4 is a cross-sectional view taken along the line IV-IV of FIG.

The shower head 1 comprises a grip portion 3 and a head body 5, and the grip portion 3 and the head body 5 are made of synthetic resin.

The grip portion 3 is formed in a hollow cylindrical shape, and a hose connection port portion 7 is provided at the base end portion thereof. Further, a threaded portion 9 is formed on the inner peripheral surface of the tip end opening of the grip portion 3,
The head main body 5 is screwed and fixed.

First and second flow path members 11 and 13 are fitted in the hollow portion of the grip portion 3. The first flow path member 11 has a cylindrical shape of a size that can be inserted into the hollow portion of the grip portion 3, and has through holes 15a and 17a in the central portion in the upper and lower portions,
Moreover, a plurality of through holes 15 are provided on the outer peripheral side of the through holes 15a and 17a.
The flanges 15 and 17 in which b and 17b are formed at regular intervals around the axis are provided.

The through holes 15a of the flanges 15 and 17
The second flow path member 13 is inserted into 17a. First
The fixing means of the second flow path member 13 to the flow path member 11 may be either a method of fixing in the above-mentioned inserted state or a method of adhering in the above-mentioned inserted state.

The second flow passage member 13 has a diameter smaller than the inner diameter of the hose connection port portion 7 and has a cylindrical shape with an axial length projecting from the flange 15 at the upper end and from the flange 17 at the lower end. The member 13 forms a partition wall on the center side of the first flow path member 11. A water purification member 21 is mounted in the space 19 of the first flow path member 11 formed by the second flow path member 13. The water purification member 21 may be a hollow fiber bundle, or a hollow fiber bundle in which a dechlorinating agent is contained in a fiber that allows water to pass therethrough to remove the chlorine content of the passing water.

The water purification member 21 may be mounted in the second flow path member 13 instead of in the first flow path member 11. In addition, the distance between the lower end of the second flow channel member 13 and the hose connection port 7 is set so that the water supplied from the hose connection port 7 flows into both the first flow channel member 11 and the second flow channel member 13. It is set.

The head body 5 is hermetically and removably screwed into the upper end opening of the grip portion 3 through a packing 23. The head body 5 has a hollow shape, and a boss 25 is integrally formed in an inclined upper opening, and a shower plate 27 having a large number of through holes 27a is screwed to the boss 25 so as to close the upper opening. Has been done.

A shaft support 29 is integrally formed in the head body 5, and a rotary shaft 31 forming a part of a flow path switching member is hermetically sealed by a packing 33 in a shaft support hole 29a of the shaft support 29. Further, it is rotatably supported so as to coincide with the axes of the first and second flow path members 11 and 13. On the upper part of the rotary shaft 31, the base end portion of the operation knob 35 forming a part of the path switching member is stopped, and the tip end portion is provided with the head body 5.
It is attached so as to project outward from an opening 37 formed in the back surface of the.

Reference numeral 39 in the drawing is a cover for closing the opening 37 of the head body 5.

A fixing member 41 is provided in the lower end of the head body 5.
Is hermetically fitted via the packing 42. The fixing member 41 is made of a synthetic resin or a metal material, and has an outer cylindrical portion 41 of a size to be fitted into the lower end opening of the head body 5.
a and the outer cylindrical portion 41a at the upper part of the outer cylindrical portion 41a.
The inner cylindrical portion 41b which is integrated with the inner peripheral surface of the inner cylindrical portion 41b at a predetermined interval and is integrated with the inner peripheral surface of the inner cylindrical portion 41b at a lower end of the inner cylindrical portion 41b at a predetermined distance. Then
Central cylindrical portion 41c integrated so as to be located in the central portion
And a mounting cylindrical portion 41d that is integrally formed in the lower portion of the central cylindrical portion 41c and is fitted into the upper portion of the second flow path member 13.

The inner cylindrical portion 41b and the central cylindrical portion 4
A plurality of openings 41e and 41f are formed in the hanging wall of 1c so as to be staggered with respect to their respective axes. A plurality of convex portions 41h are formed on the upper surface of the upper surface plate 41g connecting the outer cylindrical portion 41a and the inner cylindrical portion 41b at equal intervals around the axis.

A flow path switching member 43 is rotatably supported on the fixed member 41. The flow path switching member 43 is made of synthetic resin or a metal material, and is fitted in a close contact state between the inner cylindrical portion 41b and the central cylindrical portion 41c.
3a and the rotating shaft 3 at the upper center of the switching cylinder 43a.
1. The shaft hole 43 to be inserted with the lower end of 1 being locked.
A boss portion 43c having b is integrally formed.

The opening 41 is formed in the switching cylinder 43a.
The same number of notches 43d as e · 41f communicate with the opening 41e on the outer peripheral side and with the width substantially corresponding to the opening of the opening 41f on the inner peripheral side, and at equal intervals around the axis. Has been formed. Thus, the switching cylindrical portion 43a is provided with the cutout portions 43d and the non-cutout portions 43e alternately at a predetermined angle. A flange portion 43f is integrally formed on the outer periphery of the upper portion of the switching cylinder portion 43a.
A plurality of concave portions 43g are formed on the lower surface of f so as to be able to engage with the convex portions 41h.

A compression spring 45 as an elastic member is provided between the shaft supporting portion 29 of the head body 5 and the flange portion 43f of the flow path switching member 43, and the elastic force of the compression spring 45 causes the flow path switching member 43 to move. Is urged toward the fixing member 41 side.

Next, the switching operation of the shower head 1 will be described.

FIG. 5 is a vertical sectional view showing the switching state of the flow paths.

Now, when tap water is directly discharged to clean the washbasin, bathtub, etc., when the operation knob 35 is moved to the raw water side, the rotating shaft 31 is operated as shown in FIG. The cut portion 43d of the switching cylindrical portion 43a is aligned with the opening portion 41f of the central cylindrical portion 41c of the fixing member 41 by rotating at an angle corresponding to the moving stroke of 35. At this time,
Opening 41e of the inner cylindrical portion 41b of the fixing member 41
Is closed by a non-cutout portion 43e of the switching cylindrical portion 43a.

The concave portion 43g moves to a predetermined position while overcoming the convex portion 41h of the upper surface plate 41g of the fixing member 41, and the protruding portion 41h engaged at the position moves the flow path switching member 43 to the rotational position. Is kept constant.

Therefore, when water is supplied from the hose connection port 7 to which a hose (not shown) of tap water is connected, the tap water is supplied to the second flow path member 13 and the central cylindrical portion of the fixing member 41. It flows into the head main body 5 through the opening 41f of 41c and the cutout 43d of the switching cylinder 43a of the flow path switching member 43, and then flows out like a shower through the shower plate 27.

At this time, since the flow path switching member 43 is biased by the elastic force of the compression spring 45, it is prevented from coming out between the inner cylindrical portion 41b and the central cylindrical portion 41c by water pressure, and the non-cutout portion is prevented. The closed state of the opening 41e by 43e is maintained.

When the raw water flows out, a part of the water supplied from the hose connection port 7 is part of the first flow path member 1.
1 can also be made to flow into the inside of the fixing member 4 as described above.
Since the opening 41e of the inner cylindrical portion 41b in No. 1 is closed by the non-cutout portion 43e of the switching cylindrical portion 43a, the inflow to the head main body 5 side is regulated in the state of staying in the first flow path member 11. It

On the other hand, when washing the face, washing the body, washing the hair, etc., when the operation knob 35 is moved to the purified water side, the rotary shaft 31 is moved.
Rotates the flow path switching member 43 by rotating the operation knob 35 at an angle corresponding to the amount of movement. Thereby, the flow path switching member 4
The cutout portion 43d of the switching cylindrical portion 43a in 3 is aligned with the opening portion 41e of the inner cylindrical portion 41b of the fixing member 41, and the opening portion 41f of the central cylindrical portion 41c is closed by the non-cutout portion 43e of the switching cylindrical portion 43a.

In the above state, when water is supplied from the hose connection port 7 to which the hose of tap water is connected, the tap water has the opening 41f of the central cylindrical portion 41c of the fixing member 41 closed. After passing through the inside of the first flow path member 11 and purified by the water purification member 21, through the opening portion 41e of the inner cylindrical portion 41b of the fixed member 41 and the cutout portion 43d of the switching cylindrical portion 43a of the flow channel switching member 43. After flowing into the head body 5, it is made to flow like a shower through the shower plate 27.

At this time, as in the above, the flow path switching member 4
Since 3 is biased by the elastic force of the compression spring 45,
Water pressure is prevented from slipping out between the inner cylindrical portion 41b and the central cylindrical portion 41c, and the opening 41f is kept closed by the non-cutout portion 43e.

When the purified water flows out, a part of the water supplied from the hose connection port 7 is allowed to flow into the second flow path member 13 as well. Since the opening portion 41f is closed by the non-cutout portion 43e of the switching cylindrical portion 43a of the flow channel switching member 43, the inflow to the head body 5 side is regulated in the state of staying in the second flow channel member 13. There is.

As described above, in the embodiment of the present invention, since the flow passage switching mechanism is provided in the downstream portion of the shower head 1, the flow passage can be switched to the raw water side or the purified water side by one hand, and the operation can be performed. It has excellent properties. Further, since the flow path can be switched without rotating the hose connection port like the conventional shower head, it is not damaged by use over time and is excellent in durability.

Embodiment 2 FIG. 6 is an enlarged vertical sectional view of a flow path switching structure.

In the second embodiment, a rubber member 61 is used in place of the compression spring 45 as the elastic member in the first embodiment to bias the flow path switching member 43 toward the fixed member 41 side.

That is, a flange portion 31a is provided on the outer periphery of the lower portion of the rotary shaft that is rotatably inserted into the shaft support portion 29, and the flange portion 31a is provided.
A rubber member 61 is elastically deformed between a and the boss portion 43c of the flow path switching member 43, and the elastic cylindrical force of the rubber member 61 causes the switching cylindrical portion 43a of the flow path switching member 43 to move inside the fixing member 41. The cylindrical portion 41b and the central cylindrical portion 41 are biased so as to be fitted in a close contact state. The rubber member 61
Is capable of obtaining a large elastic force with a small elastic deformation, and is preferably an O-ring having a smooth compression strain characteristic and having a circular cross section, but it may be a disk-shaped one. Since the other members are the same as those in the first embodiment, the same reference numerals are given and detailed description thereof will be omitted.

Next, the switching operation of this embodiment will be described. The other operations are similar to those of the first embodiment, and thus detailed description thereof will be omitted.

Now, with the cutout 43d of the flow path switching member 43 and the opening 41f of the inner cylindrical portion 41b aligned, tap water can flow out, and the operation knob 35 is moved from the raw water side to the purified water side. Then, the flow path switching member 43 rotates in a desired direction with respect to the fixed member 41 so that the cutout portion 43d of the flow path switching member 43 is aligned with the opening portion 41e of the inner cylindrical portion 41b to allow purified water to flow out. At the same time, the opening 41f of the inner cylindrical portion 41b is formed by the non-cutout portion 43e of the switching cylindrical portion 43a.
To close.

At this time, the flow path switching member 43 with respect to the projection 41h of the fixing member 41 of the inner cylindrical portion 41b while further elastically deforming the rubber member 61 mounted in the elastically deformed state.
When the cutout 43d is aligned with the opening 41e after overcoming the recess 43g, the elastic force of the rubber member 61 mounted in the elastically deformed state causes the opening 41f of the inner cylindrical portion 41b by the non-cutout 43e. The closed state is maintained and tap water is regulated from mixing with the purified water that has passed through the water purification member 21.

Even when the operation knob 35 is moved from the purified water side to the raw water side, the elastic force of the rubber member 61 keeps the non-cutout portion 43e and the opening portion 41e closed, and the purified water is mixed with the tap water. Regulate the.

In this embodiment, since the rubber member 61 is used as the elastic member, a large elastic force can be obtained with a small elastic deformation. Therefore, the flow path switching member 43 is pushed up by the water pressure and the tap water and the purified water are mixed. Can be prevented and the desired water can be drained. Further, since the movement amount of the flow path switching member 43 with respect to the axial direction can be reduced, the flow path switching work can be easily performed and the operability is excellent.

The above description has been given on the inner cylindrical portion 41 of the fixing member 41.
The switching cylinder portion 43a of the flow passage switching member 43 is inserted into the gap between the b and the central cylindrical portion 41c in a close contact state, and the notch portion 43d is formed in the inner cylinder when the flow passage switching member 43 is rotated. Openings 41e-4 of the portion 41b and the central cylindrical portion 41c
Although the flow path is switched between raw water and purified water by selectively matching with 1f, the opening is formed in the upper surface of the cylindrical fixing member at the upper end of each flow path, and with respect to the circumference of the axis. Are formed in a staggered manner, and notches (not shown) are formed in the plane portion of the flow path switching member rotatably supported with respect to the fixed member so as to have a radial width across each opening, The flow path may be switched by selectively aligning the notch of the flat surface portion that comes into surface contact with the upper surface of the fixing member with each opening by the turning operation of the flow path switching member.

In this case, the flow path switching member is pressed by a compression spring or an elastic member such as a rubber member to press the flat surface portion of the flow path switching member, which is in surface contact with the upper surface of the fixing member, to bring them into close contact with each other. Therefore, it is possible to prevent the water from leaking through the closed opening by preventing the water from being pushed up.

[0053]

Therefore, according to the present invention, the flow path can be switched with one hand, and the operability can be improved. or,
INDUSTRIAL APPLICABILITY The present invention can prevent the flow path from being switched during use, and can safely discharge desired water. Furthermore, the present invention can improve durability.

[Brief description of drawings]

FIG. 1 is a central vertical sectional view of a shower head.

FIG. 2 is a partially cutaway exploded perspective view showing a flow path switching structure.

FIG. 3 is an enlarged vertical sectional view of a flow path switching structure.

FIG. 4 is a cross-sectional view taken along the line IV-IVi of FIG.

FIG. 5 is a transverse cross-sectional view showing a flow path switching state.

FIG. 6 is an enlarged vertical sectional view of a flow path switching structure.

[Explanation of symbols]

1 shower head, 3 grips, 5 head main body, 7
Hose connection port portion, 11 first flow path member, 13 second flow path member, 31 rotary shaft forming part of flow path switching member,
35 Operation knob forming a part of flow path switching member, 41
Fixed member, 41e / 41f opening, 43 flow path switching member, 43d notch, 45 compression spring as elastic member, 61 rubber member as elastic member

Claims (8)

[Claims] 1. A gripping part having a hose connection port provided at one end, and a detachable and airtightly attached to the other end of the gripping part, and a large number of through holes formed at the tip. A head main body to which a shower plate is attached; a first flow path member and a second flow path member that are coaxial with each other in the grip portion and have a hollow interior that is inserted and inserted into the connection port portion; A water purification member built into one of the two flow path members, and a head body and an end portion of the second flow path member, respectively, are fitted and required for each flow path in the first and second flow path members. Fixing members provided with a plurality of staggered openings in the respective partition walls facing each other at intervals, and rotatably inserted between the partition walls, selectively matching the openings in each partition wall, and And a flow path switching member having an opening communicating with the inside of the head main body. Showerhead a flow path leading to the head body is supplied from the connection port portion by selectively match the opening of the respective openings in the respective partition walls, and to be switched to either of the first and second flow path member Te. 2. The first flow path member according to claim 1, wherein the first flow path member has a cylindrical shape sized to be inserted into the grip portion, and a through hole and a through hole are formed in the central portions of the respective flange portions provided at the upper end portion and the lower end portion. A shower head having a cylindrical shape in which a through hole is provided around the through hole and the second flow path member is inserted into the through hole of the flange portion of the first flow path member. 3. The shower head according to claim 2, wherein the water purification member is replaceably incorporated in the internal space of the first flow path member formed by the second flow path member. 4. The shower head according to claim 2, wherein the water purification member is replaceably incorporated in the internal space of the second flow path member. 5. The fixing member according to claim 1, wherein the fixing member is insertable into either the grip portion or the head main body, and the cylindrical portions facing the upper end openings of the first and second flow path members are provided at predetermined intervals. The plurality of openings are arranged concentrically, and a plurality of openings are formed alternately on the hanging wall surface of each cylindrical portion, and the flow path switching member is closely fitted between the cylindrical portions of the fixed member and at the same time in each cylindrical portion. A shower head provided with a cylindrical portion having an opening that selectively coincides with the opening. 6. The shower head according to claim 1, wherein the flow path switching member is biased by the elastic force of the elastic member so as to come into pressure contact with the fixed member. 7. The shower head according to claim 6, wherein the elastic member is a spring member. 8. The shower head according to claim 6, wherein the elastic member is a rubber member.