JP2001323528A - Shower head equipped with water purifying function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shower head equipped with a water purifying function, which facilitates switching its channel between raw water and purified water, and can be easily handled and produced. SOLUTION: The shower head is constructed in the following manner. A head portion having a shower exhaust port and a grip portion for housing a water purifying cartridge in an exchangeable manner are formed in one body, and a channel switching valve for switching the channel from purified water to raw water or vice versa is arranged on an upstream side or a downstream side of a location where the water purifying cartridge is housed, of the grip portion. The channel switching valve is formed into a rotary shielding valve which rotates its valve body about a shaft in parallel with a seat channel, and an operating portion for the channel switching valve is arranged outside the grip portion. Further, a discharge switching valve which switches from shower discharge to straight discharge or vice versa is arranged on an upstream side of a discharge port of the head portion, independently from the channel switching valve. The discharge switching valve is formed into a shielding valve which moves its valve body in a direction intersecting the seat channel, and an operating portion for the discharge switching valve is arranged outside the head portion.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a kitchen or kitchen,
The present invention relates to a shower head having a water purification function, which is used in a washroom or a bathroom and has a capability of purifying water and / or hot water discharged at the time of use.

[0002]

2. Description of the Related Art Conventionally, it is installed in a washroom or a shower device used in a washroom or a bathroom, etc.
As a shower head having the ability to purify hot water or mixed hot and cold water (hereinafter, simply referred to as mixed water), there is a water purifying shower described in, for example, JP-A-11-9485. In this water purifying shower, a moisturizer filling section and a dechlorinating agent filling section are provided in the gripping section, and the switching device removes chlorine by passing only through the dechlorinating agent filling section, or a moisturizing agent filling section and a dechlorinating agent filling. The water can pass through both of the parts to remove chlorine and to contain water.

[Problems] In such a conventional water purification shower, the chlorine is removed by passing only through the dechlorinator filling section, or by passing through both the humectant filling section and the dechlorinator filling section. Although it is designed to be able to contain moisturizing components together with it, it is not configured so that raw water can be discharged as it is, so the humectant and dechlorinating agent are consumed extensively, and If it is desired to use it directly, there is an inconvenience that another faucet must be used, and there has been a demand for one capable of discharging raw water.

[0004]

DISCLOSURE OF THE INVENTION The present invention has been made in view of the above-mentioned problems in the prior art. It is an object of the present invention to provide an inexpensive shower head with a water purification function, which is easy to switch between paths, easy to handle and manufacture.

[0005]

According to the present invention, there is provided a shower head with a water purification function according to the present invention, which is configured to effectively solve the above-mentioned problems. And a flow path switching valve for switching between purified water and raw water provided upstream or downstream of a water quality purifying cartridge storage location of the grip section. The switching valve is formed as a rotary shutoff valve that rotates a valve body around an axis parallel to a valve seat flow path, and an operation unit of the flow path switching valve is arranged outside the gripping part. A discharge switching valve that is formed so as to be operable from the outside of the grip portion and that functions independently of the flow path switching valve and switches between shower discharge and straight discharge is provided upstream of the discharge port of the head. Discharge switching valve The valve body is formed as a shut-off valve in which the valve body moves in a cross direction with respect to the valve seat flow path, and the operating portion of the discharge switching valve is arranged outside the head so as to be operable from outside the head. It is characterized by the following.

According to a second aspect of the present invention, there is provided a shower head with a water purification function, wherein a valve seat flow path is formed in a plate-like member which fixes the flow path switching valve to a grip portion and divides the grip portion into two in the axial direction. And a plate-shaped rotating member formed concentrically with the valve seat is rotatably attached to the valve seat. The attached plate-shaped rotating member has a water purification channel and a raw water channel. And are respectively provided. In the shower head with a water purification function according to a third aspect, a filter is provided on an outer peripheral surface of the water purification cartridge, and a purification channel is formed to pass from the outer peripheral side to the inner peripheral side. Further, the shower head with a water purification function according to claim 4 is characterized in that a filter is provided on the inner surface of the water purification cartridge, and a purification flow path is formed from the inner surface to the outer peripheral surface.

According to a fifth aspect of the present invention, in the shower head with a water purification function, the discharge switching valve is formed as a rotary shutoff valve that rotates a valve body about an axis parallel to a valve seat flow path. It is characterized by. Further, the shower head with a water purification function according to claim 6 is configured such that the discharge switching valve is oriented substantially perpendicularly to a valve shaft with respect to a valve shaft, and is disposed at a position separated from the valve shaft via an arm portion. A plate surface is arranged, and the valve body is formed as a rotary shutoff valve that rotates around a valve axis.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following embodiments of the present invention, a case in which a flow path switching valve having a switching member provided along the outer surface of a grip portion will be specifically described. In addition,
This embodiment is specifically described for better understanding of the gist of the invention, and unless otherwise specified.
It does not limit the content of the invention.

[First Embodiment] [Configuration] A shower head with a water purification function provided with a flow path switching valve having a switching member arranged along the outer surface of a grip portion used here is usually used in a kitchen sink. Is formed as a shower head to be purified and used as required. For this reason, as shown in the external views of FIGS. 1 to 3, the shower head 100 with a water purifying function has a grip portion 110 having an end portion that can be attached to a mixing faucet (not shown) or a hose provided on the mixing faucet, A head 120 capable of performing shower discharge is provided at an end of the grip 110 opposite to the mixing faucet attachment side.

The grip portion 110 is divided into an intermediate portion into a cylindrical portion 111 directly connected to the head portion 120 and a cylindrical portion 112 on the side where the mixing faucet is attached, and the two cylindrical portions 111 and 112 are detachably and integrally provided at the intermediate portion. A relay portion 113 formed with a screw connection portion that allows for the combination of the relay portions 113 is formed.
3 is released to separate the cylindrical portion 111 from the cylindrical portion 112, so that the water purification cartridge 130 (see FIGS. 4 and 5) can be accommodated inside the grip portion 110, and A thick-walled cylindrical hose connection portion 114 is provided at the end on the side where the mixing faucet is attached, and a hose attachment screw 115 is formed at the tip thereof to facilitate attachment and detachment with the hose.
In addition, a protrusion 141 that is an operation end of the flow path switching valve 140 (see FIGS. 4 and 5) protrudes from an end portion of the gripping section 110 immediately adjacent to the head.
Is formed so that can be operated.

The head 120 forms a space (cavity) 120a (see FIGS. 4 and 5) in which the mixed water flowing from the gripping portion 110 stays (see FIGS. 4 and 5), and has a discharge surface from which the mixed water is uniformly discharged. Is detachably formed,
A straight discharge port 122 (see FIG. 4) is provided at the center of the shower plate 121, and a shower discharge port 123 (see FIG. 4) is provided so as to surround the periphery thereof, and a discharge switching valve 150 for switching between straight discharge and shower discharge. (See FIG. 4), and a switching lever 151 serving as an operation unit of the discharge switching valve 150 is disposed outside the shower plate 121 so as to protrude.

As shown in FIGS. 4 and 5, the shower head 100 having a water purification function containing the water purification cartridge is provided with an outer passage 131 of the water purification cartridge 130.
Is a part of the raw water flow path, and the water purification cartridge 130
Is used as a part of the purified water flow path.
In this case, the water-purifying cartridge 130 has a through-hole (central space 132) concentric with the central axis and extending in the axial direction.
33 and an end cap 130 for concentrically fitting and fixing the filter 134 made of a non-woven fabric, sponge, mesh or the like around its outer peripheral surface in a gripping portion.
a and 130b are attached to each end.

A cylindrical cartridge receiver 116, into which the downstream (head side) end of the water purification cartridge 130 is inserted and fixed, is projected into the cylindrical portion 111 located on the head 120 side of the grip portion 110. The flow path switching valve 140 provided therein is built in, and a projection 141 as an operation section of the flow path switching valve 140 is protruded so as to be hooked by a finger. By inserting the insertion end of the end cap 130a, the downstream end of the water purification cartridge 130 can be centered and fixed in position, and the relay portion 113 is screwed to assemble the cylindrical portion 112 into the cylindrical portion 111. By attaching, the upstream side of the water purification cartridge 130 (the hose connection side)
Of the water purification cartridge 130 in the grip portion 110 is centered and fixed in position by a rib 112a provided inside the end portion located on the upstream side of the cylindrical portion 112.
Are stored substantially coaxially.

The flow path 116a on the outer peripheral side of the cartridge receiver 116 communicates with the outer flow path 131 of the water purification cartridge 130 to become a part of the raw water flow path. 116b is
It communicates with the central space 132 of the water purification cartridge 130 and is used as a part of a water purification channel.

When the protrusion 141 of the flow path switching valve 140 is adjusted to the purified water discharge position (see FIG. 6), the flow path switching valve 1
The flow passage 116 formed on the outer surface of the cartridge receiving surface 40
a is closed, and the mixed water that has flowed into the holding portion 110 flows from the outer peripheral flow path 131 of the water purification cartridge 130 to the filter 134 and the water purification material 1.
33, the water flows into the central space 132 of the water purification material 133 while purifying the water quality, flows out into the space 120a formed in the head 120 via the flow path 116b on the inner surface side of the cartridge receiver 116, According to the selection of the discharge switching valve 150, the gas is discharged from the space 120 a to the outside of the shower plate 121 through the straight discharge port 122 or the shower discharge port 123.

When the projecting portion 141 of the flow path switching valve 140 is set to the raw water discharge position (see FIG. 42), the flow communicating with the flow path 116a formed on the cartridge receiving outer surface side of the flow path switching valve 140. The road is open, and the gripper 11
The mixed water that has flowed into the water purification cartridge 13
0 through the outer peripheral side flow path 131 of the cartridge receiver 11.
6, flows out into the space 120a formed in the head 120 through the flow path 116a on the outer surface side, and flows out of the shower plate 121 through the straight discharge port 122 or the shower discharge port 123 according to the selection of the discharge switching valve 150. Discharge.

A space 120 formed inside the head 120
A partition member 125 is provided on the downstream side of a and upstream of the portion accommodating the discharge switching valve 150, for partitioning the space 120 a from the shower discharge surface upstream space 120 c. An assembly passing member 126 is provided at the center of the plate 125a. The discharge switching valve 150 provided on the downstream side of the partition member 125 is arranged such that its valve body 150a can be located directly below the collecting passage member 126. Collecting passage member 126 and valve body 150a of discharge switching valve 150
Are further arranged on the downstream side of the vertically arranged positions, the straight discharge ports 122 formed in the shower plate 121.
A straight discharge flow path forming member 127 communicating with the vertical direction is provided upright.

In the discharge switching valve 150, the valve body 150a is disposed immediately downstream with a slight gap from the collecting passage member 126, and the lower surface of the valve body 150a is formed at the upper end of the straight discharge channel forming member 127. It is arranged at a position immediately in contact with the opening 127a so that it can be covered from above as a lid of the straight discharge flow path forming member 127. Further, by operating the switching lever 151, the valve body 150a opens the opening 127a. 150a from the position directly above
In the range until the entirety deviates from the position of the opening 127a,
The switching lever 15 is moved so that the valve body 150a can freely rotate in and out of the upper end of the straight discharge flow path forming member 127.
1 is set.

As shown in FIGS. 7 to 9, the head portion 120 has a cylindrical portion 111 protruding toward the grip portion side.
Has a cylindrical inner surface 113a for fitting with the cylindrical portion 112.
And the female screw 113b are formed on the inner surface side so that the female part of the relay part 113 can be screw-coupled to the cylindrical part 112,
A cylindrical inner surface 113d having a necessary diameter as a fitting inner surface for internally fitting the flow path switching valve 140 is formed behind the female screw 113b,
A hole 111 having a rectangular shape with a long side oriented in the circumferential direction and having a long side oriented in a circumferential direction for penetrating a projection 141 serving as an operation end of the flow path switching valve 140 at a central portion in the axial direction of a portion where the cylindrical inner surface 113d is formed.
Drill a. The length of the long side of the rectangular hole 111a is defined in accordance with the maximum movement distance of the protrusion 141 according to the operation angle of the flow path switching valve 140. On the discharge side, a head outer skin 120b is formed, whose top is formed into a curved surface and whose main part is formed in a substantially cylindrical shape, and has a cavity in which no special protrusion is provided. A switching valve or the like can be accommodated.

As shown in FIGS. 10 to 13, the hose connecting side tube portion 112 formed so as to be separable from the tube portion 111 integrated with the head 120 via the relay portion 113 has a substantially cylindrical shape. The end face on the hose connection side has an end face 112b provided with a circular hole, a thick cylindrical hose connection part 114 protrudes from the end face, and a hose mounting screw 115
A male screw 113c and a cylindrical portion 11 are provided on the outer surface side at the end opposite to the end provided with the hose connection portion 114.
Cylindrical outer surface 113 for fitting to the first cylindrical inner surface 113a
e is formed to form the male side of the relay portion 113.

On the inner surface side of the cylindrical portion 112, an inner size is formed on the upstream end portion and the end surface 112b in accordance with the size of the end edge portion of the end cap 130b on the hose connection side of the water purification cartridge 130. A plurality of ribs 112a,
, 112a are projected, and the water purification cartridge 130
Supports the end portion of the end cap 130b at the time of storage so that the water purification cartridge 130 can be concentrically fixed in position, and a guide when mixed water flows in from the hose connection side; Vortex elimination member. Also, the protrusion 11 is provided on the outer peripheral side of the hose connection portion 114.
Projection 4a is used as a positioning rib for fitting and supporting the holder portion of the faucet body.

Flow path switching valve 14 for switching between raw water and purified water
Reference numeral 0 denotes a protrusion 141 serving as an operation member for performing a valve opening / closing operation, a valve seat forming member 142 fixed to the cylindrical portion 111, and a valve body formed by the protrusion 141, as shown in FIGS. And a member 143. The protruding portion 141 is provided as shown in FIG.
As shown in 4 to 16, a finger hook 141a is provided at the central portion so as to protrude outward in the radial direction, is curved along the outer periphery of the cylinder 111, and is drilled in the cylinder 111 for the entire operation range during operation. Operating member 141b formed in a curved plate shape capable of covering the formed rectangular hole 111a, and the operating member 141b
Locking portion 14 with respect to the valve body forming member 143 protruding at a position opposite to the side where the finger hooking portion protrudes (the central portion inside the curved surface).
1c.

As shown in FIGS. 17 to 19, the valve seat forming member 142 is a disk forming a partition plate for partitioning between the water quality purifying cartridge housing portion side of the cylindrical portion 111 and the space forming side of the head portion 120. Part 142a and the cylindrical part 1
11 and a ring-shaped peripheral projection 142b formed on the other side and a valve element forming member 14 on the other surface side.
3 is a cylindrical valve body fitting portion 142c for internally fitting 3
And a hole 142e serving as a flow path formed at a center position between the center and the periphery of the disk portion 142a to form a thick portion 142d and a hole 142e on a surface on the fitting side of the valve body. An O-ring groove 142f engraved around the set position is formed.

As shown in FIGS. 20 to 23, the valve body forming member 143 forms a thick disk portion 143a having a surface that comes into contact with the disk portion 142a of the valve seat forming member 142. One surface of the portion 143a is a surface abutting on the disk portion 142a of the valve seat forming member 142, and a cartridge receiver 116 serving as an inner cylindrical portion is protruded concentrically with respect to the center of the disk on the other surface side. A cylindrical outer cylindrical portion 143b is concentrically protruded from a peripheral portion of the thick disk portion 143a to form a double cylindrical shape having one end closed. At the edge of the outer cylindrical portion 143b of the double cylinder, there is provided a thick portion 143c having an outer dimension necessary for fitting into the cylindrical portion 111 and having a larger thickness on the outer peripheral side, An O-ring groove 143d is formed on the outer peripheral surface of the thick portion 143c.

Then, holes 143e and 143f, each serving as one flow path, are formed at a position between the center and the periphery of the thick disk portion 143a at a center angle of about 90 degrees on the same circumference. A hole 143e is formed by forming a part of a bottomed cylinder having the same thickness as the thickness of the cartridge receiver 116 on the periphery of the hole on the surface of the valve seat forming member 142 that does not contact the disk portion 142a.
Of the cartridge receiver 116 and the inner peripheral side of the cartridge receiver 116 of the hole 143f in the same manner, so that the holes 143e and 143 for the inner surface side and the outer surface side of the cartridge receiver 116 respectively.
A flow path communicating with f is formed.

Further, on the outer peripheral side of the outer cylindrical portion 143b, the protruding sides facing each other forming an inverted T-shaped groove 143g with the end face of the thick portion 143c facing the side where the thick disk portion is disposed are opposed. The key-shaped members 143h and 143i protrude, and the locking portion 141c on the protruding portion 141 side is formed to be engageable and to be able to enter and exit in the axial direction of the valve element forming member 143. Further, a step portion 143j formed so that an O-ring can be fitted in place of the O-ring groove in the outer peripheral edge portion is provided on the surface of the thick disk portion 143a on the valve seat forming member contact side. The O-ring (see FIGS. 4 and 5) is made of rubber such as NBR (acrylonitrile butadiene rubber) that can be used in a range from hot water to cold water.

Thus, the locking portion 141 of the projection 141 is located between the key-shaped members 143h and 143i of the valve body forming member 143.
c on the surface of the valve seat forming member 142 facing the cartridge for purifying water quality.
When the surface in contact with is rotated 90 degrees clockwise or counterclockwise around the central axis of the thick disk portion 143a,
By aligning the hole 143e or the hole 143f of the valve body forming member 143 on the same central axis with the hole 142e provided in the valve seat forming member 142, the valve is opened with respect to the flow path of the purified water or the raw water, respectively. You will be able to pass.

As shown in FIGS. 24 to 26, the partition member 125 incorporated inside the head 120
A short cylindrical annular member 125 is provided on the outer peripheral edge of each side of the surface 25a.
b, 125c are projected, and a fitting hole 125d is fitted in the center of the disk-shaped partition plate 125a to fit a collective passing member 126 (see FIG. 28) for shifting to the entrance to the shower discharge side or the straight discharge side. Drilling. The annular member 125c on the lower side of the outer peripheral edge is formed with a multi-threaded external thread 125e on the outer peripheral surface so that the shower plate 121 can be screwed into the annular member 125c.
f is formed to prevent leakage. Fitting hole 125
As for d, the diameter is divided into two stages, a hole having the same diameter in the circular axial direction is formed in the upper part, and a hole reduced in the axial direction downward is formed in the lower part. A step is provided in the middle so that the collective passing member 126 can be fitted from above.

As shown in FIGS. 27 to 29, the collecting passage member 126 is formed by shaving the flange-side end surface shallowly into a flat cylindrical shape with an outer edge, and into an annular groove 126b.
Are formed in the axial direction from the shallowly cut end face of the flange side so as not to penetrate deeply, and a large number of light beams 126c whose outer end reaches the flange portion 126d on the outer periphery of the annular groove 126b.
And an annular groove 126b having this light beam 126c
The outer diameter of the columnar portion 126a provided with is smaller than the outer diameter of the flange portion 126d, so that the outer lower end of the beam 126c is formed to have a side opening. The collecting passage member 126 adjusts the outer dimensions of the columnar portion 126a and the flange portion 126d to the partition member 12.
5 (see FIG. 25), the outer diameter of which can be fitted into the fitting hole 125d, and the opening formed in the side surface of the cylindrical portion 126a is reduced in diameter downwardly formed in the fitting hole 125d of the partition member 125. The axial dimension is adjusted so as to reach the position of the hole, and the raw water or purified water flowing radially outward and downward from the opening is caused to flow downward and centrally by the hole whose diameter is reduced.

The shower plate 121 as a discharge surface forming member located downstream of the partition member 125 is shown in FIGS.
As shown in FIG. 33, a flat disk portion 121a and an overhang portion 121b formed by rising the outer peripheral edge thereof are formed, and a straight discharge port 122 is formed in the center of the disk portion 121a. A shaft hole 124 is formed adjacent to the straight discharge port 122 so as to penetrate the valve shaft 151a (see FIG. 37) of the discharge switching valve 150 to support the shaft. Around the straight discharge port 122, a plurality of small holes serving as shower discharge ports 123 are formed at substantially equal intervals.

In the shower plate 121, the side on which the overhanging portion of the disk portion 121a in which each hole is formed is formed as the inflow side (upstream side) of the mixed water, and the inner peripheral surface side of the overhanging portion 121b has a plurality of strips. Forms two multi-threaded female threads 121c so that it can be screwed into the multi-threaded male thread 125e provided on the partition member 125. Also, a stepped portion 121d having an increased diameter is provided inside the upper end of the overhang portion 121b to form a pressing surface against the O-ring groove,
The O-ring (see FIG. 4) attached to the O-ring groove 125 f of the partition member 125 is pressed from the outside so that it can be sealed when screwed with the partition member 125.

Further, a recess 121e for fitting a straight discharge channel forming member 127 (see FIG. 35) is provided above the straight discharge port 122, and the straight discharge channel forming member 127 is provided at the center of the shower plate. Stand up, and set the straight discharge channel (straight discharge channel 1)
27b) and the flow path on the shower discharge side (upstream space 120c on the shower discharge surface).
Furthermore, a shaft hole 124 is provided on the outer peripheral surface of the overhang portion 121b.
Two protruding portions 121f, 121f are protruded on the outer peripheral side of the position where the shaft hole is provided so as to sandwich the outer peripheral surface of the shaft hole drilling position, and the valve shaft 151a of the discharge switching valve 150 The switching lever 151 is supported and has two projecting portions 121f, 1
When provided between 21f, the operating range of the switching lever 151 can be restricted to the rotation angle given by the distance between the two protrusions 121f, 121f.

As shown in FIGS. 34 to 36, the straight discharge channel forming member 127 erected at the center of the shower plate is formed in a cylindrical shape having an end whose upper end is reduced in diameter toward the inner surface side. The inside of the cylindrical part is straight discharge channel 1
27b. Opening 127 formed at the upper end
The opening diameter of “a” is formed to be smaller than the inner diameter of the cylindrical portion, so that the valve body 150a (see FIG. 38) of the discharge switching valve 150 can be easily mounted. The outer diameter of the lower end is large enough to fit into the inner diameter of the concave portion 121e formed in the center of the shower plate 121, and is fitted so that it can be erected at the center of the shower plate 121 after the fitting. Is formed to be tight.

The discharge switching valve 150 is, as shown in FIG.
A switching lever 151 integrally provided with a valve shaft 151a that is rotatably supported around an axis through the disk portion 121a of the shower plate 121, and a collecting passage member 126 and a straight discharge channel forming member 127. It is divided into a thin plate-shaped valve element 150a having a shallow concave upper surface so that it can be arranged in the gap provided therebetween.

As shown in FIG. 37, the switching lever 151 is moved in a direction perpendicular to the valve shaft 151a.
b is extended, and a finger hook 151c that forms a surface substantially perpendicular to the lever rotation direction at the tip of a lever portion 151b, which is an operation piece thereof, has concave portions 151d formed on both sides thereof to lock fingers. To facilitate. At the distal end of the valve shaft 151a, it is inserted into a fitting hole 150d (see FIG. 38) formed on the valve body side and is connected to the valve body 150a, and is urged to the expansion side for preventing detachment after the connection. The elastic locking portions 151e, 151e having a rectangular section are projected.

As shown in FIGS. 38 and 39, the valve body 150a is formed in a thin dish shape having an upper surface formed as a shallow concave surface, and a lower surface formed as a convex surface curved with a radius of curvature having a length longer by the plate thickness. An arm 150c extending from the plate 150b in one direction in the radial direction; and an arm 150c
And a shaft coupling portion 150e having a rectangular cross-section fitting hole 150d into which the valve shaft-side elastic locking portions 151e, 151e are inserted and fitted.

The elastic locking portions 151e, 1 on the valve shaft 151a side
When the 51e is inserted into the fitting hole 150d of the shaft coupling portion 150e, the elastic locking portions 151e, 151e are inserted into the shaft hole 124 formed in the shower plate 121 from the outside (downstream side). After fitting the valve shaft 151a,
An elastic locking portion 151 is provided in the fitting hole 150d on the valve body 150a side.
e, 151e until they can be prevented from coming off, and connect the valve body 150a and the switching lever 151 to the shower plate 12
1 and the movable member of the discharge switching valve 150 is integrally connected and formed.

[Effects] In the first embodiment configured as described above, the protrusion 141 of the flow path switching valve 140 is
10 can be switched between purified water and raw water by rotating along the outer peripheral surface of the pipe 10. In addition, independent of switching between purified water and raw water, the straight discharge can be performed by operating the switching lever 151 of the discharge switching valve 150. And shower discharge can be switched.

Now, the setting position of the flow path switching valve 140 is shown in FIG.
When the outer peripheral flow path 131 is closed and the central space 132 is opened to communicate with the space 120a of the head 120 as shown in FIGS. The water purifies the water quality by passing through the water purification material 133 from the outer flow path 131 of the water purification cartridge 130 and flowing out to the central space 132, and the purified mixed water flows from the central space 132. Cartridge receiver 116 provided in path switching valve 140
Flow passage 116b on the inner surface side of the valve, hole 143 drilled on the valve body side
e and the head 1 through a hole 142e formed on the valve seat side.
20 and flows into the straight discharge flow path 127b or the shower discharge surface upstream side space 120c from the space 120a via the collecting passage member 126 according to the setting of the discharge switching valve 150, and discharges straight or shower. .

Next, when the purified water is being discharged, the projecting portion 141 of the flow path switching valve 140 is rotated by a required angle in a predetermined direction along the outer peripheral surface of the grip portion 110, and the flow path switching valve 140 is turned off.
As shown in FIGS. 40 to 42, the outer peripheral side flow path 131 is formed in the flow path 116a on the outer surface side of the cartridge receiver 116 provided in the flow path switching valve 140, the hole 143f formed in the valve body side, and the valve seat side. When the central space 132 is closed while the central space 132 is closed while communicating with the space 120a of the head 120 via the hole 142e provided, the mixed water flowing from the hose connection 114 side of the grip 110 is The cartridge receiver 11 provided in the flow path switching valve 140 from the flow path 131
6, the flow path 116a on the outer surface side, the hole 14 formed in the valve body side
3f and a hole 142e formed on the valve seat side to flow into the space 120a of the head 120, and from this space 120a via the collecting passage member 126, according to the setting of the discharge switching valve 150, the straight discharge passage 127b or the shower. It flows into the upstream side space 120c of the discharge surface and performs straight discharge or shower discharge. Thereafter, when the projecting portion 141 of the flow path switching valve 140 is rotated along the outer peripheral surface of the grip portion 110 by the same angle in the opposite direction to the case of raw water discharge, the case returns to the case of pure water discharge as shown in FIGS. , And can discharge purified water.

The operation of the discharge switching valve 150 can be performed independently of the operation of the flow path switching valve 140, and the straight discharge and the shower discharge can be arbitrarily set. First, when the switching lever 151 is operated to rotate to the straight discharge side about the axis of the valve shaft 151a, the valve body 150a is displaced from the position of the opening 127a of the straight discharge flow path forming member 127, and the collecting passage member The mixed water flowing out from 126 flows into the opening 127a of the straight discharge channel forming member 127, passes through the inside of the straight discharge channel 127b, and is discharged from the straight discharge port 122.

When the switching lever 151 is set to the straight discharge side and the switching lever 151 is operated in the opposite direction to rotate about the axis of the valve shaft 151a toward the shower discharge side, FIG. As shown in FIGS. 4 and 41, the plate portion 150b of the valve body 150a is located above the opening 127a of the straight discharge flow path forming member 127 and closes the opening 127a. Blocked by the plate portion 150b of 150a, it flows out around the straight discharge channel forming member 127, and the partition member 1
The liquid is discharged from the shower discharge port 123 through a shower discharge surface upstream space 120c formed by the shower plate 25 and the shower plate 121. Then, switch lever 1
When the user operates 51 to rotate the valve shaft 151a toward the straight discharge side about the axis thereof, the liquid is discharged from the straight discharge port 122 as described above.

Thus, the protruding portion 1 of the flow path switching valve 140
By rotating 41 around the central axis of the grip portion 110 and along the outer peripheral surface, it is possible to easily switch between the purified water discharge and the raw water discharge. When the raw water is discharged, the water is purified from the flow path 131 to the central space 132 when passing through the water purification material 133. In addition, when the raw water is discharged, the flow path upstream of the water purification material 133 of the water purification cartridge 130 However, the accumulated water on the filter surface accumulated at the time of discharging purified water is washed away by the mixed water passing through the surface side of the filter 134, thereby preventing clogging and preventing the water purification material 133 from deteriorating. Thus, the water purification performance can be maintained at a high level. In addition to this, since the discharge switching valve 150 is completely independent of the flow path switching valve 140, even if either raw water or purified water is discharged, either straight discharge or shower discharge is selected. It can be ejected and four available forms can be selected.

[Second Embodiment] In the first embodiment, the outer peripheral side of the water purification cartridge is formed as an upstream flow path before purification, but in the second embodiment, the center of the water purification cartridge is formed. The case where the space is formed as an upstream flow path before purification will be specifically described. In the following description, the reference numerals of the respective members are set to the numbers in the 200's to distinguish them from the first embodiment, and the members other than the members related to the configuration of the flow path switching valve have the same configuration as the first embodiment. And the same symbols are used for the last two digits of the 200s, and the description is omitted.

[Configuration] Shower head 20 with water purification function
Reference numeral 0 denotes a grip portion 210 having an end portion that can be attached to a mixing faucet (not shown) or a hose provided on the mixing faucet, as shown in the cross-sectional views taken along arrows in FIGS.
And a head 220 capable of performing shower discharge at an end opposite to the mixing faucet mounting side.

The grip portion 210 is divided into a cylindrical portion 211 directly connected to the head portion 220 and a cylindrical portion 212 on the side of the mixing faucet, and a screw coupling portion for enabling these to be detachably and integrally combined. Are formed so as to be freely separated and coupled by the relay portion 213 formed. By releasing the screwing of the relay portion 213 to separate the tubular portion 211 and the tubular portion 212, the water purification cartridge 230 can be accommodated inside the grip portion 210. In addition, a thick-walled cylindrical hose connection portion 214 is provided at the end on the side where the mixing faucet is attached, and a hose attachment screw 215 is formed at the end thereof to facilitate attachment and detachment with the hose. The cylindrical portion 211 of the grip portion 210
A projecting portion 241 of the flow path switching valve 240 protrudes from the upper end of the holding section 210 so that the flow path switching valve 240 can be operated from outside the grip section 210.

The head 220 forms a space (cavity) 220a in which the mixed water flowing from the grip portion 210 stays, and detachably forms a shower plate 221 having a discharge surface from which the mixed water is uniformly discharged. A straight discharge port 222 is provided at the center of the shower plate 221, a shower discharge port 223 is provided so as to surround the periphery thereof, and a discharge switching valve 2 for switching between straight discharge and shower discharge.
A switching lever 251 serving as an operation unit of the discharge switching valve 250 is disposed outside the shower plate 221.

The cartridge 230 for water purification has a through-hole (central space 232) concentric with the central axis and long in the axial direction, and has a water purification material 233 containing activated carbon as a main component and having a cylindrical shape. It is assumed that a filter 235 made of a nonwoven fabric, a sponge, a net, or the like is provided around the peripheral surface. Out of the flow paths formed by housing the water purification cartridge 230 in the grip portion 210, the outer peripheral flow path 231 of the water purification cartridge 230 is a part of the water purification flow path, and the central space of the water purification cartridge 230 is 232 is used as a part of the raw water flow path.

A cylindrical cartridge receiver 216 into which the downstream (head side) end of the water purification cartridge 230 is inserted and fixed is projected into the cylindrical portion 211 located on the head 220 side of the grip portion 210. And a downstream end cap 230a provided in the water purification cartridge 230 in the cartridge receiver 216.
By inserting the insertion end of the water purifying cartridge 230, the downstream end of the water purifying cartridge 230 is centered and fixed in position, and the relay portion 213 is screwed into the tubular portion 212 to assemble the tubular portion 211. An upstream end (hose connection side) of the cartridge 230 has a cylindrical cartridge receiver 2 provided inside an end located on the upstream side of the cylindrical portion 212.
17 and is fixed in position.
The cartridge 230 for water purification is accommodated substantially coaxially.

The flow path 2 on the outer peripheral side of the cartridge receiver 216
16a is the outer channel 2 of the water purification cartridge 230.
31 and becomes a part of the purified water flow path, and the flow path 216b on the inner surface side of the cartridge receiver 216 is used as a part of the raw water flow path by communicating with the central space portion 232 of the water purification cartridge 230. You. The flow path (space) 217 a on the outer peripheral side of the cartridge receiver 217 is an end of the outer peripheral flow path 231 of the water purification cartridge 230, and the flow path 217 on the inner surface side of the cartridge receiver 217.
b is the central space 232 of the water purification cartridge 230
And is used as a part of the raw water flow path.

Thus, the projecting portion 2 of the flow path switching valve 240
In the case of the purified water discharge where 41 is adjusted to the purified water discharge position, the flow path communicating with the flow path 216b formed on the inner surface side of the cartridge receiver 216 of the flow path switching valve 240 is closed, and flows into the grip portion 210. The mixed water passes through the water purification material 233 of the water purification cartridge 230 from the central space 232 of the water purification cartridge 230 and flows out to the outer peripheral side flow path 231 while purifying the water quality. Head 220 through the side flow path 216a
Flows out into the space 220a formed in the discharge switching valve 250
According to the selection of the straight outlet 2 from the space 220a.
22 or is discharged to the outside of the shower plate 221 through the shower discharge port 223.

In the case of raw water discharge in which the projecting portion 241 of the flow path switching valve 240 is adjusted to the raw water discharge position, the flow path switching valve 240 communicates with the flow path 216b formed on the inner surface side of the cartridge receiver 216. The flow path is opened, and the mixed water flowing into the grip portion 210 passes through the central space 232 of the water purification cartridge 230 and is formed on the head 220 via the flow path 216 b on the inner surface side of the cartridge receiver 216. It flows out into the space 220a and discharges to the outside of the shower plate 221 through the straight discharge port 222 or the shower discharge port 223 according to the selection of the discharge switching valve 250.

The space 220 formed inside the head 220
a partition member 225 for partitioning between the space 220a and the shower discharge surface upstream space 220c on the downstream side of the portion a that accommodates the discharge switching valve 250, and a disk-shaped partition of the partition member 225. An assembly passing member 226 is provided at the center of the plate 225a. The valve body 250a of the discharge switching valve 250 provided on the downstream side of the partition member 225 is
50a is arranged so that it can be located immediately below the collecting passage member 226. Collecting passage member 226 and discharge switching valve 250
A straight discharge flow path forming member 227 communicating with a straight discharge port 222 formed in the shower plate 221 is provided upright on the downstream side of the position where the valve bodies 250a are vertically arranged.

The discharge switching valve 250 is arranged such that the valve body 250a is located downstream of the partition member 225 and immediately downstream with a slight gap from the collecting passage member 226, and the lower surface of the valve body 250a is formed as a straight discharge flow path. It is arranged at a position closest to the opening 227a formed at the upper end of the member 227,
The straight discharge flow path forming member 227 can be covered from above as a lid, and by operating the switching lever 251, the valve 250a is opened.
The switching lever 251 is provided so that the valve body 250a can freely rotate into and out of the upper end of the straight discharge flow path forming member 227 in a range from a position directly above the valve body 250a to a position where the entire valve body 250a deviates from the position of the opening 227a. Is set.

As in the first embodiment, the head portion 220 has a cylindrical portion 211 protruding toward the grip portion, and the protruding cylindrical portion 211 is formed.
The female part of the relay part 213 is formed at the tip of
And the flow path switching valve 24 is provided at an intermediate position between the relay portion 213 of the cylindrical portion 211 and the space 220a.
A hole 211a having a rectangular shape with a long side facing in the circumferential direction for penetrating the protrusion 241 serving as an operation end of the hole 011 is formed. The length of the long side of the hole 211a is determined by the operation angle of the flow path switching valve 240. In accordance with the maximum movement distance of the protruding portion 241 according to the above. On the discharge side of the head 220, a head outer skin 220b having a cavity formed with a curved top, a main part formed substantially in a cylindrical shape, and having no special projection inside.
To form a substantially cylindrical shape so that a partition plate, a discharge switching valve, and the like can be accommodated.

As shown in FIGS. 46 to 49, the hose connection side cylinder portion 212 formed so as to be separable and connectable with the cylinder portion 211 has a substantially cylindrical shape, and a circular hole is provided at the hose connection side end. A thick-walled cylindrical hose connecting portion 214 is coaxially protruded outward from the end surface 212b, and a hose mounting screw 215 is formed on the outer peripheral side of the distal end portion to provide the hose connecting portion 214. At the end opposite to the end, a male screw 213c and a cylindrical outer surface 213e for fitting to the cylindrical portion 211 are formed on the outer surface side to form a male side of the relay portion 213.

On the inner surface side of the cylindrical portion 212, the upstream end portion and the end surface 212b are provided with an inner portion corresponding to the size of the small-diameter side edge portion of the end cap 230b on the hose connection side of the water purification cartridge 230. The cartridge holder 217 having a cylindrical shape having dimensions is protruded to support the upstream edge of the end cap 230b when the cartridge 230 for water purification is accommodated, thereby concentrically fixing the cartridge 230 for water purification. Be able to do it. Also, a protrusion 214a protrudes on the outer peripheral side of the hose connection part 214,
It is a positioning rib for fitting and supporting the holder or the discharge port of the faucet body.

Flow path switching valve 24 for switching between raw water and purified water
43, a protrusion 241 serving as an operation member for performing a valve opening / closing operation, a valve seat forming member 242 fixed to the cylindrical portion 211, and a valve body formed by the protrusion 241 as shown in FIGS. And a member 243. The protrusion 241 is
As in the first embodiment, a finger hook 241a is protruded radially outward at the center, curved along the outer periphery of the cylinder 211, and drilled in the cylinder 211 over the entire operation range during operation. Operating member 241b formed in a curved plate shape capable of covering the formed rectangular hole 211a, and the operating member 241b
Locking portion 24 for valve body forming member 243 protruding at a position opposite to the side on which the finger hook portion protrudes (the central portion inside the curved surface).
1c.

As shown in FIGS. 50 and 51, the valve seat forming member 242 is a disk forming a partition plate for partitioning between the water-purifying cartridge accommodating portion side of the cylindrical portion 211 and the space forming side of the head portion 220. Part 242a and the cylindrical part 2
A peripheral projecting portion 242b which forms an outer shape for fitting to be fitted in 11 and projects in a ring shape, and a valve body forming member 24 on the other surface side
3 is a cylindrical valve body fitting portion 242c for internally fitting 3
And a hole 242e serving as a flow path formed at an intermediate position between the center and the periphery of the disk portion 242a.

As shown in FIGS. 52 to 55, the valve body forming member 243 forms a thick disk portion 243a having a surface that comes into contact with the disk portion 242a of the valve seat forming member 242. One surface side of the portion 243a is a surface abutting on the disk portion 242a of the valve seat forming member 242, and a cartridge receiver 216 serving as an inner cylindrical portion is protruded concentrically with respect to the center of the disk on the other surface side. A cylindrical outer tube portion 243b is concentrically protruded from the peripheral portion of the thick disk portion 243a to form a double cylindrical shape with one end closed. A thick portion 243c is formed at the edge of the outer cylindrical portion 243b of the double cylinder, which has an outer dimension necessary for fitting the cylindrical portion 211 therein, and is formed on the outer peripheral side so as to be thicker. An O-ring groove 243d is formed on the outer peripheral surface of the thick portion 243c.

Holes 243e and 243f, each serving as a flow path, are formed at a position between the center and the periphery of the thick disk portion 243a and at a position separated by about 90 degrees at a central angle on the same circumference. A hole 243e is formed by forming a part of a bottomed cylinder having the same thickness as the thickness of the cartridge receiver 216 on the periphery of the hole of the surface of the valve seat forming member 242 that does not contact the disk portion 242a.
Of the cartridge receiver 216 and the inner peripheral side of the cartridge receiver 216 in the same manner, the holes 243e and 243 for the inner surface side and the outer surface side of the cartridge receiver 216, respectively.
A flow path communicating with f is formed.

Further, on the outer peripheral side of the outer cylindrical portion 243b, an inverted T-shaped groove 243g is formed with the end face of the thick portion 243c facing the side where the thick disk portion is disposed to face each other. The key-shaped members 243h and 243i protrude, and the locking portion 241c on the protruding portion 241 side is formed so as to be engageable and to be able to enter and exit in the axial direction of the valve body forming member 243. Further, a step portion 243j formed so that an O-ring can be fitted in place of the O-ring groove in the outer peripheral edge portion is provided on the surface of the thick disk portion 243a on the valve seat forming member contact side.

Thus, the locking portion 241 of the projecting portion 241 between the key-shaped members 243h and 243i of the valve body forming member 243.
c on the surface of the valve seat forming member 242 on the side of the water purification cartridge receiving side, the disc portion 242a of the valve body forming member 243.
When the surface in contact with is closely contacted and rotated 90 degrees clockwise or counterclockwise around the central axis of the thick disk portion 243a,
By aligning the hole 243e or the hole 243f of the valve body forming member 243 on the same central axis with the hole 242e provided in the valve seat forming member 242, the valve is opened with respect to the flow path of the purified water or the raw water, respectively. You will be able to pass.

[Operation and Effect] In the second embodiment configured as described above, the protrusion 241 of the flow path switching valve 240 is
10 can be switched between purified water and raw water by rotating along the outer peripheral surface of the pipe 10. In addition, independent of switching between purified water and raw water, the straight discharge can be performed by operating the switching lever 251 of the discharge switching valve 250. And shower discharge can be switched.

Now, the setting position of the flow path switching valve 240 is shown in FIG.
3 to 45, the central space portion 232 is closed, and the outer peripheral side flow path 231 is connected to the space 220a of the head 220.
When opened, the mixed water flowing in from the hose connection portion 214 side of the grip portion 210 flows from the central space 232 of the water purification cartridge 230 to the water purification material 233.
The water is purified by passing through the outer flow path 231 and flowing out to the outer flow path 231.
Through the flow path 216a on the cartridge receiving outer side provided in the flow path switching valve 240, the hole 243f formed on the valve body side, and the hole 242e formed on the valve seat side.
Flows into the shower discharge surface upstream side space 220c or the straight discharge flow path 227b according to the setting of the discharge switching valve 250 from the space 220a through the collecting passage member 226, and the purified mixed water is straightened. Discharge or shower discharge.

Next, when the purified water is discharged, the protruding portion 241 of the flow path switching valve 240 is rotated by a required angle in a predetermined direction along the outer peripheral surface of the grip portion 210, as shown in FIGS. As described above, the central space 232, the flow path 216b on the inner surface of the cartridge receiving side provided in the flow path switching valve 240, the hole 243e formed on the valve body side, and the hole 2 formed on the valve seat side
When the outer side flow path 231 is closed while the outer passage 42 e is communicated with the space 220 a of the head 220 and the outer peripheral side channel 231 is closed, the mixed water flowing from the hose connection portion 214 side of the grip portion 210 flows from the central space portion 232. A flow path 216b on the inner surface of the cartridge receiving side provided in the passage switching valve 240, a hole 243e formed on the valve body side, and a hole 242 formed on the valve seat side.
e, flows out into the space 220a of the head 220, and flows out of the space 220a via the collecting passage member 226 according to the setting of the discharge switching valve 250.
Alternatively, the mixed water flows into the straight discharge channel 227b, and the mixed water is not purified, and is discharged straight or showered as raw water. Thereafter, the protruding portion 24 of the flow path switching valve 240
When 1 is rotated by the same angle in the opposite direction to the case of the raw water discharge along the outer peripheral surface of the grip portion 210, it returns to the case of the purified water discharge shown in FIGS. 43 to 45 so that the purified water can be discharged. Become.

As for the operation of the discharge switching valve 250, the mixed water can be discharged straight or showered by operating the switching lever 251 as in the case of the first embodiment. First, when the switching lever 251 is operated to rotate to the straight discharge side, the valve body 250a is displaced from the position of the opening 227a of the straight discharge flow path forming member 227, and the mixed water flowing out from the collective passage member 226 is discharged. It flows into the opening 227a of the flow path forming member 227, passes through the straight discharge flow path 227b, and is discharged from the straight discharge port 222.

When the switching lever 251 is set to the straight discharge side and the switching lever 251 is operated in the opposite direction to rotate to the shower discharge side, as shown in FIG. Is located above the opening 227a of the straight discharge flow path forming member 227 and closes the opening 227a.
6 flows out around the straight discharge flow path forming member 227 while being blocked by the plate portion 250b of the valve body 250a, and the shower discharge surface upstream space 220c formed by the partition member 225 and the shower plate 221. From the shower discharge port 223 through the nozzle. Thereafter, when the switching lever 251 is operated to rotate to the straight discharge side, the discharge is changed to the discharge from the straight discharge port 222 as described above.

Thus, the protruding portion 2 of the flow path switching valve 240
By rotating 41 around the central axis of grip portion 210 and along the outer peripheral surface, it is possible to easily switch between the purified water discharge and the raw water discharge. The water is purified when passing through the water purification material 233 from the portion 232 to the outer peripheral side flow passage 231, and at the time of discharging raw water, the flow passage upstream of the water purification material 233 of the water purification cartridge 230 is By the mixed water passing through the surface side of the filter 235, accumulated matter on the filter surface accumulated at the time of discharging purified water is washed away, and clogging is less likely to occur, and deterioration of the water purification material 233 is prevented. Water purification performance can be maintained at a high level. In addition to this, since the discharge switching valve 250 is completely independent of the flow path switching valve 240, even if either raw water or purified water is discharged, either straight discharge or shower discharge is selected. It can be ejected and four available forms can be selected.

[Third Embodiment] In the first embodiment or the second embodiment, a flow path switching valve for selecting discharge of raw water and purified water is provided downstream of the water purification cartridge. In the third embodiment, a flow path switching valve is provided on the upstream side of the water purification cartridge, and the raw water is introduced into the flow path formed on the outer peripheral side of the water purification cartridge and passes from the outer peripheral side to the central central space. A specific description will be given of a case in which the purification is performed during the period. In the following description,
The reference numerals of the respective members are set in the 300s to distinguish them from the first embodiment. Members other than the members relating to the configuration of the flow path switching valve have the same configuration as the first embodiment and are denoted by the same reference numerals. The lower two digits of the 300s are assigned the same numbers, and the description is omitted.

[Configuration] Shower head 30 with water purification function
Reference numeral 0 denotes a grip portion 310 having an end which can be attached to a mixing faucet (not shown) or a hose provided on the mixing faucet, as shown in the external views of FIGS. A head portion 320 integrally formed at an end opposite to the side so as to be able to perform shower discharge.

The grip part 310 is divided into a cylindrical part 311 directly connected to the head part 320 side and a cylindrical part 312 on the mixing faucet mounting side, and is detachably and integrally attached to the connecting part of the two cylindrical parts 311 and 312. By forming a relay portion 313 having a screw connection portion that enables the combination, the screwing of the relay portion 313 is released to separate the cylindrical portion 311 from the cylindrical portion 312, so that the inside of the grip portion 310 is formed. The water purification cartridge 330 (see FIGS. 62 and 63) can be accommodated. In addition, a cylindrical hose connection portion 314 is provided at the end on the side where the mixing faucet is attached, and a hose attachment screw 315 is formed at the tip thereof to facilitate attachment / detachment to / from the hose. Further, a flow path switching valve 340 is provided at an end of the grip portion 310 on the hose mounting side, which is on the upstream side of the water purification cartridge 330.
Projecting portion 341 which is the operation end of
0 so that the flow path switching valve 340 can be operated from outside.

The head 320 has a space (cavity) 320a (FIG. 63) in which the mixed water flowing from the holding portion 310 stays.
), And a detachable shower plate 321 having a discharge surface at which the mixed water is uniformly discharged is formed at a discharge end. Is provided, and a discharge switching valve 350 for switching between the straight discharge and the shower discharge is provided therein. I do.

In this shower head 300 with a water purification function, as shown in FIGS. The central space 332 of the cartridge 330 is used as a part of a purified water flow path or a raw water flow path. Water purification cartridge 330 in this case
Is a water-purifying material 333 having activated carbon as a main component, which is formed in a cylindrical shape by providing a through-hole (central space portion 332) concentrically with the central axis in the axial direction, and a nonwoven fabric, a sponge, a net, or the like on its outer peripheral surface. The end caps 330a and 330b for fixing the fitting position concentrically in the gripping portion are attached to the ends around which a filter 334 made of is formed.

The downstream end (head side) of the water purification cartridge 330 is inserted into and fixed to the end of the inside of the cylindrical part 311 on the head side end of the tube part 311 located on the head part 320 side of the grip part 310. A cylindrical cartridge receiver 316 is provided, and a downstream end cap 330 provided on the water purification cartridge 330 is provided on the cartridge receiver 316.
By inserting the insertion end of a, the downstream end of the water purification cartridge 330 can be centered and fixed in position.

A junction 313 between the cylinder 311 and the cylinder 312
Is screwed together, and the tubular portion 312 is assembled to the tubular portion 311 so that the upstream end (hose connection side) of the water purification cartridge 330 is positioned inside the end located upstream of the tubular portion 312. Is fitted into a cylindrical cartridge receiver 317 provided in the flow path switching valve 340 provided in the, and is centered and fixed in position, and the water purification cartridge 330 is substantially coaxially accommodated in the grip portion 310. I do.

Thus, the flow path 316 a on the outer peripheral side of the cartridge receiver 316 is
Communicates with the outer peripheral side flow path 331 of the cartridge receiver 316 to form a closed end of the raw water flow path.
6b is a central space 3 of the water purification cartridge 330.
32 and a part of the raw water flow path while forming a part of the purified water flow path. In addition, a flow path 317b on the inner surface side of the cylindrical cartridge receiver 317 provided in the flow path switching valve 340 communicates with the central space 332 of the water purification cartridge 330 to form an end of the purified water flow path. The inlet of the raw water flow path is formed, and the flow path 317 a on the outer peripheral side of the cartridge receiver 317 is
0 and communicates with the outer peripheral side flow path 331 to form an inlet of the raw water flow path.

The space 320 formed inside the head 320
A partition member 325 for partitioning between the space 320a and the shower discharge surface upstream space 320c is provided on the downstream side of the section a and upstream of the portion accommodating the discharge switching valve 350, and the disk-shaped partition of the partition member 325 is provided. An assembly passing member 326 is provided at the center of the plate 325a. The discharge switching valve 350 provided on the downstream side of the partition member 325 is arranged such that the valve body 350a can be located directly below the collecting passage member 326. Further, on the further downstream side of the position where the collecting passage member 326 and the valve body 350a of the discharge switching valve 350 are arranged vertically, a straight discharge flow path forming a straight discharge port 322 formed in the shower plate 321 is formed. Member 3
27 is erected.

As shown in FIGS. 65 and 66, the head portion 320 has a cylindrical portion 311 protruding toward the grip portion, and a male screw 313c for screwing the cylindrical portion 312 to the distal end of the protruding cylindrical portion 311. , Cylindrical outer surface 313e for centering at the time of connection
Are formed on the outer surface side to form the male side of the relay portion 313. The relay portion 31 is provided at the axial center of the cylindrical outer surface 313e.
An O-ring groove 313f into which an O-ring (see FIGS. 62 and 63) necessary for preventing leakage of the third member 3 is fitted. And head 3
On the discharge side of 20, a head outer skin 320b is formed which is a cavity whose top is formed in a curved surface and whose main part is formed in a substantially cylindrical shape and has no special projection inside. A switching valve or the like can be accommodated.

As shown in FIGS. 67 to 70, the cylindrical portion 312 formed so as to be separable and connectable with the cylindrical portion 311 is substantially cylindrical and has an end face 312 provided with a circular hole at the end on the hose connection side.
b, a cylindrical hose connection portion 314 protrudes from the end face, and a hose mounting screw 315 is formed at the tip end. At the most downstream end of the cylindrical portion 312, a female screw 313b on the inner surface side and cylindrical inner surfaces 313a and 313d for fitting are formed at the front and rear positions in the axial direction of the female screw forming portion, respectively. Side so that it can be screwed and connected to the male relay portion 313 on the side of the cylindrical portion 311. On the other hand, at the upstream end of the cylindrical portion 312,
At a location away from the end face 312b by a predetermined distance, the flow path switching valve 3
A hole 312c having a rectangular shape whose long side is directed in the circumferential direction and penetrates the protrusion 341 serving as the operation end of 40 is formed. The length of the long side of this rectangular hole 312c is defined in accordance with the maximum movement distance of the protrusion 341 according to the operation angle of the flow path switching valve 340.

At the upstream end of the cylindrical portion 312, the inner diameter is adjusted in accordance with the size of the edge (insertion end) of the end cap 330b on the hose connection side of the water purification cartridge 330. A flow path switching valve 340 in which a formed cartridge receiver 317 is formed is built in, and a protruding portion 341 of the flow path switching valve 340 is protruded to the outside of the cylindrical section 312 through a rectangular hole 312c provided in the cylindrical section 312. A projection 314a protrudes from the outer peripheral side of the hose connection portion 314, and serves as a positioning rib for fitting and supporting the holder portion of the faucet body.

Flow path switching valve 34 for switching between raw water and purified water
62, a protrusion 341 serving as an operation member for performing a valve opening / closing operation, a valve seat forming member 342 fixed to the cylindrical portion 312, and a valve body formed by the protrusion 341 as shown in FIGS. And a member 343. The protrusion 341 is
As shown in FIGS. 71 to 73, a finger hook 341 a is provided at a central portion so as to protrude outward in the radial direction, and a rectangular hole 312 of the cylindrical portion 312 is formed.
an operating member 341b formed in a curved plate shape that can be curved along the outer periphery of the position where c is bored to cover a rectangular hole 312c bored in the cylindrical portion 312 over the entire operation range during operation. A locking portion 341c for the valve body forming member 343 protrudingly provided at a position (an inner central portion of the curved surface) of the operation member 341b opposite to the side where the finger hook portion protrudes.

As shown in FIGS. 74 to 76, the valve seat forming member 342 has a disk portion 342a for forming a partition plate for partitioning the cylindrical portion 312 between the water purifying cartridge housing portion side and the inflow side end. A peripheral projecting portion 34 formed on the outer peripheral edge thereof to form a fitting outer shape to be fitted in the cylindrical portion 312 and projecting in a ring shape;
2b, a valve body fitting portion 342c formed on one surface side with a cylindrical inner surface in which the valve body forming member 343 is fitted, and a thick portion 342d formed at an intermediate position between the center and the periphery of the disk portion 342a. A hole 342e serving as a flow channel formed in the center position and an O-ring groove 342f formed around the position where the hole 342e is formed in the surface on the fitting side of the valve are formed.

As shown in FIGS. 77 to 80, the valve body forming member 343 forms a thick disk portion 343a having a surface that comes into contact with the disk portion 342a of the valve seat forming member 342. One surface of the portion 343a is a surface that abuts against the disk portion 342a of the valve seat forming member 342, and a cartridge receiver 317 that is an inner cylindrical portion is protruded concentrically with respect to the center of the disk on the other surface side. A cylindrical outer cylindrical portion 343b is concentrically protruded from a peripheral portion of the thick disk portion 343a to form a double cylindrical shape with one end closed. A thick portion 343c is formed at the edge of the outer cylindrical portion 343b of the double cylinder, which has an outer dimension necessary for fitting inside the cylindrical portion 312 and is formed so as to be thicker on the outer peripheral side, An O-ring groove 343d is engraved on the outer peripheral surface of the thick portion 343c.

Then, holes 343e and 343f each serving as one flow path are formed at an intermediate position between the center and the periphery of the thick disk portion 343a and at a center angle of about 90 degrees on the same circumference. A hole 343e is formed by forming a part of a bottomed cylinder having the same thickness as the thickness of the cartridge receiver 317 on the periphery of the hole that does not contact the disk portion 342a of the valve seat forming member 342.
Of the cartridge receiver 317 and the inner peripheral side of the cartridge receiver 317 of the hole 343f in the same manner, the holes 343e and 343 for the inner surface side and the outer surface side of the cartridge receiver 317, respectively.
A flow path communicating with f is formed.

Further, on the outer peripheral side of the outer cylindrical portion 343b, mutually projecting sides forming an inverted T-shaped groove 343g with the end face of the thick portion 343c facing the arrangement side of the thick disk portion 343a as a back are formed. The facing key-shaped members 343h and 343i are protruded, and the locking portion 341c of the protruding portion 341 is formed so as to be engageable and to be able to move in and out in the axial direction of the valve body forming member 343. Further, a step portion 343j formed so that an O-ring can be fitted in place of the O-ring groove on the outer peripheral edge portion is provided on the surface of the thick disk portion 343a on the valve seat forming member contact side.

As a result, the locking portion 341 of the projecting portion 341 is provided between the key-shaped members 343h and 343i of the valve body forming member 343.
c, and the disc portion 342a of the valve body forming member 343 is attached to the surface of the valve seat forming member 342 on the water purification purifying cartridge housing side.
When the contact surface is rotated clockwise or counterclockwise by 90 degrees around the central axis of the thick disk portion 343a, the valve body forming member is inserted into the hole 342e formed in the valve seat forming member 342. When the holes 343e or 343f of the 343 are coaxially aligned, the valve is opened with respect to the purified water flow path or the raw water flow path, respectively, so that the mixed water passes through the valve open flow path.

The partition member 325 incorporated in the head part 320 is fitted with a collecting passage member 326 for shifting to the entrance to the shower discharge side or the straight discharge side at the center of the disk-shaped partition plate 325a. Then, the shower plate 321 can be screwed into the lower side of the outer peripheral edge, and the O-ring can be sealed above the screw forming portion. The fitting hole of the collecting passage member 326 provided at the center of the partition member 325 is divided into two stages, and a hole having the same diameter in the axial direction is formed in the upper part, and the shaft is formed in the lower part. A hole is formed in the hole whose diameter is reduced downward in the direction, and a step is provided in the middle thereof so that the collecting passage member 326 can be fitted from above.

The collecting passage member 326 is formed by engraving an annular groove and a large number of light beams on the outer periphery of the annular groove on a flanged cylinder having a flat edged outer edge by shaving the end face on the flange side shallowly. The outer diameter of the cylindrical portion provided with the annular groove having the light beam is made smaller than the outer diameter of the flange portion, and the outer lower end of the light beam is formed to have a side opening. The axial dimension is adjusted so that the collecting passage member 326 reaches the position of the downwardly-reduced hole formed in the fitting hole of the partition member 325, and the raw water flowing radially outward and downward from the opening. Alternatively, the purified water is caused to flow out so as to be concentrated below the center by the hole whose diameter is reduced.

The shower plate 321 as a discharge surface forming member located downstream of the partition member 325 is formed in a shape in which the outer peripheral edge is raised from a flat disk portion, and a straight discharge is formed at the center of the disk portion. An outlet 322 is provided, and the shaft of the discharge switching valve 350 is penetrated and supported adjacent to the straight discharge port 322. The periphery of the straight discharge port 322 on the surface excluding the straight discharge port 322 and the shaft support portion is provided. A large number of small holes serving as shower outlets 323 are formed at substantially equal intervals.

The shower plate 321 has a projecting portion forming side on the outer periphery of the disc portion in which each hole is formed as an inflow side (upstream side) of the mixed water, and a female screw is formed on the inner peripheral surface side of the projecting portion forming side. Thereby, it can be screwed into a male screw provided on the partition member 325. Further, a pressing surface for the O-ring is formed inside the upper end of the overhang portion, and the O-ring (see FIG. 63) attached to the partition member 325 is pressed from the outside to prevent leakage when screwing with the partition member 325. It can be so.

Further, a straight discharge channel forming member 327 is provided above the straight discharge port 322, and the straight discharge channel forming member 327 is provided at the center of the shower plate.
27, the straight discharge side flow path (straight discharge flow path 327b) and the shower discharge side flow path (shower discharge surface upstream space 320c) can be partitioned. Further, two projections are provided on the outer peripheral surface of the overhanging portion of the shower plate 321 near the position where the switching lever 351 is provided so as to sandwich the outer peripheral surface of the switching lever 351. When the switching lever 351 is provided between the two protrusions, the switching lever 351
Can be restricted to the rotation angle given by the distance between the two protrusions.

The straight discharge channel forming member 327 erected at the center of the shower plate is formed in a cylindrical shape having an end whose upper end is reduced in diameter on the inner surface side. 327b. The opening 327a formed at the upper end is formed so that the opening diameter is smaller than the inner diameter of the cylindrical portion, so that the valve body 350a of the discharge switching valve 350 can be easily mounted. The outer diameter of the lower end is large enough to fit in the center of the shower plate 321, and the fitting is tight so that it can be erected in the center of the shower plate 321 after fitting. .

The discharge switching valve 350 is connected to the shower plate 3
A switching lever 351 integrally provided with a valve shaft that is rotatably supported around an axis through the valve 21 and a gap provided between the collective passing member 326 and the straight discharge channel forming member 327. It is divided into a thin plate-shaped valve element 350a having a shallow concave upper surface as much as possible. The switching lever 351 is inserted into a fitting hole formed on the valve body side and is connected to the valve body 350a, and is elastically shaped to have a rectangular cross-section urged to the expansion side for preventing detachment after the connection. It is connected by the locking part.

The valve body 350a has a shallow concave surface on the upper surface and a convex plate 350b curved on the lower surface with a radius of curvature that is longer by the thickness of the plate, and has an arm extending in one direction from the plate 350b. Then, a fitting hole having a rectangular cross section to be fitted inside by inserting an elastic locking portion on the valve shaft side is formed in the distal end portion of the arm portion. The switching lever 351 and the valve body 350a are integrated with each other by inserting the elastic locking portion of the switching lever 351 into the fitting hole on the valve body 350a side until it can be prevented from coming off.
And the switching lever 351 are attached to the shower plate 321 and the movable member of the discharge switching valve 350 is integrally connected.

In this discharge switching valve 350, a valve body 350a is arranged immediately downstream with a slight gap from the collecting passage member 326, and the lower surface of the valve body 350a is formed at the upper end of the straight discharge flow path forming member 327. The opening 327a is disposed at a position immediately adjacent to the opening 327a so that the opening 327a can be covered from above as a lid of the straight discharge flow path forming member 327.
The valve body 350a is moved from a position directly above the opening 327a to the valve body 35.
The valve body 350a is connected to the straight discharge flow path forming member 32 in a range until the entirety of the valve body 0a deviates from the position of the opening 327a.
The turning angle of the switching lever 351 is set so that the turning lever 351 can turn freely into and out of the upper end of the switch 7.

[Function and Effect] In the third embodiment configured as described above, the projecting portion 341 of the flow path switching valve 340 provided at the end of the grip portion 310 on the hose connection side is moved along the outer peripheral surface of the grip portion 310. By switching the pure water and the raw water, it is possible to switch between the straight discharge and the shower discharge by operating the switching lever 351 of the discharge switching valve 350 independently of the switching between the purified water and the raw water. Will be able to do it.

Now, the setting position of the flow path switching valve 340 is shown in FIG.
2 to 64, the protrusion 341 of the flow path switching valve 340
Is adjusted to the purified water discharge position, the hole 342e formed on the valve seat side of the flow path switching valve 340 is provided with the hole 3 formed on the valve body side.
The position of 43e is coaxially coincident, and the outer peripheral flow path 331 of the water purification cartridge 330 is opened to communicate with the inlet side of the flow path switching valve 340. At this time, the mixed water flows into the grip portion 310 from the hose connection portion 314 side of the grip portion 310, and the inflowing mixed water flows into the hole 342e formed on the valve seat side of the flow path switching valve 340 and the valve body side. Hole 343e provided
And a channel 317a on the outer surface side of the cartridge receiver 317
Through the outer peripheral side channel 3 of the water purification cartridge 330
From the filter 31, the water passes through the filter 334 and the water purification material 333, flows out to the central space 332, purifies the water quality, and the central space 332 communicates with the space 320 a of the head 320. The liquid flows out of the central space 332 into the space 320a of the head 320 via the flow path 316b on the inner surface side of the cartridge receiver 316. And this space 3
20a through the collective passage member 326 to the discharge switching valve 35
According to the setting of 0, it flows into the straight discharge flow path 327b or the upstream space 320c of the shower discharge surface, and discharges straight or shower.

Next, when the purified water is discharged, the protruding portion 341 of the flow path switching valve 340 is rotated by a required angle in a predetermined direction along the outer peripheral surface of the grip portion 310, as shown in FIGS. When the flow path switching valve 340 is adjusted to the raw water discharge position as described above, the hole 342e formed on the valve seat side of the flow path switching valve 340
The position of the hole 343f drilled on the valve body side coincides with the position of the
1 is closed from the inlet side of the flow path switching valve 340,
The central space 332 of the water purification cartridge 330 is opened to communicate with the inlet side of the flow path switching valve 340.

At this time, the hose connection portion 3 of the grip portion 310
When the mixed water flows in from the 14 side, the flow path switching valve 340
Through the hole 342e formed on the valve seat side, the hole 343f formed on the valve body side, and the flow path 317b on the inner surface side of the cartridge receiver 317. Since the mixed water is communicated with the space 320 a of the section 320, the mixed water is not purified, and the head 320
Out into the space 320a.

Then, from this space 320a, it flows into the straight discharge flow path 327b or the shower discharge surface upstream side space 320c according to the setting of the discharge switching valve 350 via the collective passage member 326, and performs straight discharge or shower discharge. Thereafter, when the protruding portion 341 of the flow path switching valve 340 is rotated along the outer peripheral surface of the grip portion 310 by the same angle in the opposite direction to the case of raw water discharge, the flow returns to the case of pure water discharge as shown in FIGS. , And can discharge purified water.

The operation of the discharge switching valve 350 can be performed independently of the operation of the flow path switching valve 340, and the straight discharge and the shower discharge can be arbitrarily set. First, when the switching lever 351 is operated to rotate to the straight discharge side around the axis of the valve shaft, the valve body 350a
Is the opening 327a of the straight discharge flow path forming member 327
And the mixed water flowing out of the collecting passage member 326 is removed from the opening 327 of the straight discharge flow path forming member 327.
a, and passes through the inside of the straight discharge channel 327b to be discharged from the straight discharge port 322.

When the switching lever 351 is set to the straight discharge side and the switching lever 351 is operated in the opposite direction to rotate toward the shower discharge side about the axis of the valve shaft, the state shown in FIG. Or 82, the plate portion 350b of the valve body 350a is positioned above the opening 327a of the straight discharge flow path forming member 327 so that the opening 327a is formed.
And the mixed water flowing out of the collecting passage member 326 is blocked by the plate portion 350b of the valve body 350a, flows out around the straight discharge flow path forming member 327, and is formed by the partition member 325 and the shower plate 321. The liquid is discharged from the shower discharge port 323 via the discharge surface upstream space 320c. Thereafter, when the switching lever 351 is operated to rotate about the axis of the valve shaft toward the straight discharge side, the liquid is discharged from the straight discharge port 322 as described above.

As a result, the projection 3 of the flow path switching valve 340
By rotating 41 around the center axis of grip portion 310 and along the outer peripheral surface, it is possible to easily switch between the purified water discharge and the raw water discharge. The water is purified when passing through the water purification material 333 from the flow path 331 to the central space 332. In addition, since the discharge switching valve 350 is completely independent of the flow path switching valve 340, it is possible to select either straight discharge or shower discharge regardless of whether raw water or purified water is discharged. It can be ejected and four available forms can be selected.

[Fourth Embodiment] In the third embodiment, the outer peripheral side of the water purification cartridge is formed as an upstream flow path before purification, but in the fourth embodiment, the upstream of the water purification cartridge is formed. A case in which a flow path switching valve is provided on the side and the central space of the water purification cartridge is formed as an upstream flow path before purification will be specifically described. In the following description, the reference numerals of the respective members are set to the numbers in the 400s to identify them from the third embodiment, and the members other than the members related to the configuration of the flow path switching valve have the same configuration as the third embodiment. And the same reference numerals are used for the last two digits of the 400s, and the description is omitted.

[Configuration] Shower head 40 with water purification function
Reference numeral 0 denotes a grip portion 410 having an end which can be attached to a mixing faucet (not shown) or a hose provided on the mixing faucet, as shown in the cross-sectional views taken along arrows in FIGS.
And a head 420 capable of performing shower discharge at an end opposite to the mixing faucet mounting side.

The grip portion 410 is divided into a tube portion 411 directly connected to the head portion 420 side and a tube portion 412 on the side where the mixing faucet is attached. The holding portion 410 is detachably and integrally attached to the connecting portion of the two tube portions 411 and 412. By forming a relay portion 413 having a screw connection portion that enables the combination, a screwing of the relay portion 413 is released to separate the cylindrical portion 411 from the cylindrical portion 412, so that the inside of the grip portion 410 is formed. The water purification cartridge 430 can be accommodated. In addition, a cylindrical hose connection portion 414 is provided at the end on the side where the mixing faucet is attached, and a hose attachment screw 415 is formed at the tip thereof to facilitate attachment / detachment to / from the hose. The end of the grip portion 410 on the hose mounting side, which is upstream of the water purification cartridge 430, has a protrusion 4
41 is formed so that the channel switching valve 440 can be operated from the outside of the grip portion 410 by protruding.

The head 420 forms a space (cavity) 420a in which mixed water flowing from the holding portion 410 stays, and has a shower plate 421 having a discharge surface at the discharge end for uniformly discharging the mixed water. The straight discharge port 4 is formed at the center of the shower plate 421.
22 and a shower outlet 42 surrounding the periphery thereof.
3, a discharge switching valve 450 for switching between straight discharge and shower discharge is provided therein, and a switching lever 451 serving as an operation unit of the discharge switching valve 450 is connected to the shower plate 42.
1 and protrude outside.

The water purification cartridge 430 has a through-hole (central space portion 432) concentric with the central axis and extending in the axial direction, and is formed into a cylindrical shape. It is assumed that a filter 435 made of a nonwoven fabric, a sponge, a net, or the like is provided on the peripheral surface. Of the flow paths formed by housing the water purification cartridge 430 in the holding portion 410, the outer peripheral flow path 431 of the water purification cartridge 430 is a part of the water purification flow path, and the central space of the water purification cartridge 430. 432 is used as a part of the raw water flow path.

A plurality of ribs 411b as a cartridge receiver for fixing the downstream (head side) end of the water purification cartridge 430 are provided inside the cylindrical portion 411 located on the head 420 side of the grip portion 410. The grip portion 410 is formed in a flat plate shape parallel to the axial direction and protrudes, and the downstream end cap 430a provided in the water purification cartridge 430 abuts on the upstream end surface of the rib 411b. By centering and fixing the downstream end of the water purification cartridge 430, screwing the junction 413 between the cylinder 411 and the cylinder 412, and attaching the cylinder 412 to the cylinder 411. The end on the upstream side (hose connection side) of the water purification cartridge 430 is connected to a cylindrical valve provided on a flow path switching valve 440 provided inside the end located on the upstream side of the cylindrical portion 412. Fitted into the cartridge receiver 417,
The water purification cartridge 430 is accommodated substantially coaxially in the grip portion 410 with the centering and the position fixed.

Thus, the water purification cartridge 43
On the downstream side of 0, there is no obstruction to the flow path because it is supported by the rib 411b, and the outer flow path 431 of the water purification cartridge 430 communicates with the space 420a of the head 420, and a part of the water purification flow path or It becomes a part of the raw water flow path, and furthermore, the central space 432 of the water purification cartridge 430 is closed by the end cap 430a on the downstream side so as not to pass through, so it is used only as a part of the raw water flow path. Is done. The flow path (space) 417 a on the outer peripheral side of the cartridge receiver 417 is a water purification cartridge 430.
And an end of the purified water flow path or a part of the raw water flow path, and a flow path 417b on the inner surface side of the cartridge receiver 417 communicates with the central space 432 of the water purification cartridge 430. Used as part of the raw water flow path.

Space 420 formed inside head 420
A partition member 425 for partitioning between the space 420a and the shower discharge surface upstream space 420c is provided on the downstream side of the section a and upstream of the portion accommodating the discharge switching valve 450, and the disk-shaped partition of the partition member 425 is provided. An assembly passing member 426 is provided at the center of the plate 425a. The valve body 450a of the discharge switching valve 450 provided downstream of the partition member 425 is
It is arranged so that 50a can be located directly below the collecting passage member 426. Collecting passage member 426 and discharge switching valve 450
A straight discharge channel forming member 427 that communicates with a straight discharge port 422 formed in the shower plate 421 is provided upright on the downstream side of the position where the valve bodies 450a are vertically arranged.

As shown in FIGS. 87 to 89, the head portion 420 has a cylindrical portion 411 protruding toward the grip portion side. , Cylindrical outer surface 413e for centering at the time of connection
Are formed on the outer surface side to form the male side of the relay portion 413, and the relay portion 41 is provided at the axial center of the cylindrical outer surface 413e.
An O-ring groove 413f into which an O-ring (see FIGS. 84 and 85) necessary for preventing leakage of No. 3 is fitted. At the head-side end of the cylindrical portion 411, three ribs 411b formed in a plate shape parallel to the axial direction are vertically provided on the inner wall at equal pitches on the periphery. The end face of the rib 411b facing the relay section 413 is positioned at a height necessary to stop the outer end edge of the end cap 430a on the downstream side of the water purification cartridge 430 from the wall surface. It rises up to a gentle slope until it reaches the height from the wall surface necessary for the end cap 430a on the downstream side of the water purification cartridge 430 to be fitted and stopped, and then formed on a surface perpendicular to the wall surface. You. Then, on the discharge side of the head 420, a head outer skin 420b is formed in which the top is formed into a curved surface, the main part is formed in a substantially cylindrical shape, and the inside is not provided with a special protruding portion, and is a cavity. A partition plate, a discharge switching valve, and the like can be accommodated.

As in the third embodiment, a tube portion 412 on the hose connection side formed so as to be separable and connectable with the tube portion 411 has a female screw on the inner surface side and a fitting cylinder at the most downstream end. The inner surface is formed at the front and rear positions in the axial direction of the female screw forming portion, so that the female side of the relay portion 413 is formed and can be screwed and connected to the male relay portion 413 of the cylindrical portion 411 side. To At the upstream end of the cylindrical portion 412, a plane shape whose long side is directed in the circumferential direction to penetrate the projecting portion 441 serving as an operation end of the flow path switching valve 440 at a position away from the end surface by a predetermined distance is rectangular. A hole 412c is formed. The length of the long side of the hole 412c depends on the operation angle of the flow path switching valve 440.
Defined in accordance with the maximum travel distance of 1. This cylindrical portion 412
A cartridge receiver 417 having a dimension on the inner diameter side in accordance with the dimension of the edge (insertion end) of the end cap 430b on the hose connection side of the water purification cartridge 430 is formed at the upstream end of the cartridge. The flow path switching valve 440 is built in, and the protruding portion 441 of the flow path switching valve 440 is projected outside the cylindrical section 412 through a rectangular hole 412c provided in the cylindrical section 412.

A flow path switching valve 44 for switching between raw water and purified water.
Reference numeral 0 denotes a protrusion 441 serving as an operating member for performing a valve opening / closing operation, a valve seat forming member 442 fixed to the cylindrical portion 412, and a valve body forming member moved by the protrusion 441, as in the third embodiment. 443. The projecting portion 441 has a finger hook portion projecting outward in the center in the radial direction, and a rectangular hole 412 formed in the cylindrical portion 412 over the entire operation range during operation.
c, and a valve body forming member 443 protruding from a position (an inner center portion of the curved surface) of the operation member opposite to the side on which the finger hook protrudes. And a locking portion for

The valve seat forming member 442 includes a disk portion forming a partition plate for partitioning the end of the cylindrical portion 412 between the water purification cartridge accommodating portion side and the inflow side, and a cylindrical portion 41 on the outer peripheral edge thereof.
2, a peripheral projecting portion formed in a ring shape by forming an outer shape for fitting to be fitted inside, a valve body fitting portion formed on one surface side with a cylindrical inner surface into which the valve body forming member 443 is fitted, and a disc portion A thick portion is formed at an intermediate position between the center and the periphery of the hole, and a hole 442e serving as a flow passage formed at the center position and a hole formed around the position where the hole 442e is formed at the surface on the fitting side of the valve body. The formed O-ring groove is formed. The valve body forming member 443 is
A thick disk portion having a surface that abuts against the disk portion 42 is formed, one surface of the thick disk portion is a surface that abuts against the disk portion of the valve seat forming member 442, and the other surface is A cartridge receiver 417, which is an inner cylinder portion at the center, protrudes concentrically with respect to the center of the disc, and a cylindrical outer cylinder portion protrudes concentrically from the peripheral portion of the thick disc portion to close one end. Form into a heavy cylinder.
At the edge of the outer cylinder portion of the double cylinder, a thick portion having an outer dimension necessary for fitting inside the cylinder portion 412 and having a thickness increased on the outer peripheral side is provided. An O-ring groove is formed on the outer peripheral surface of the meat portion.

[0117] Each one is located at an intermediate position between the center and the periphery of the thick disk portion and at a position about 90 degrees apart from the center angle on the same circumference.
Holes 443e and 443f, which are two flow paths, are formed, and a portion of the hole peripheral portion of the surface of the valve seat forming member 442 that does not contact the disk portion forms a part of a bottomed cylinder having the same thickness as the thickness of the cartridge receiver 417. The wall that covers the hole 443e and the position on the outer peripheral side of the cartridge receiver 417 is covered with the hole 443f.
By similarly covering the inner peripheral side of the cartridge receiver 417, a flow path communicating with the holes 443e and 443f corresponding to the inner surface side and the outer surface side of the cartridge receiver 417 is formed. Further, on the outer peripheral side of the outer cylindrical portion, a key-shaped member that forms an inverted T-shaped groove with the end face of the thick portion facing the side where the thick disk portion is disposed as a back protrudes from each other. Thus, the locking portion on the protruding portion 441 side is formed so as to be engageable and to be able to enter and exit in the axial direction of the valve body forming member 443. Further, a step portion formed so that an O-ring can be fitted in place of the O-ring groove in the outer peripheral edge portion is provided on the surface of the thick disk portion on the valve seat forming member contact side.

Thus, the locking portion located inside the projecting portion 441 is engaged between the key-shaped members of the valve body forming member 443,
The surface of the valve seat forming member 442, which is in contact with the disk portion of the valve body forming member 443, is closely attached to the surface of the valve seat forming member 442 on the cartridge side for purifying water, and the clockwise or counterclockwise direction is rotated 90 degrees around the central axis of the thick disk portion. When rotated around, the hole 443e or the hole 443f of the valve body forming member 443 is aligned with the hole 442e provided in the valve seat forming member 442 on the same central axis. The valve is open,
The mixed water passes through the flow path on the valve opening side.

The discharge switching valve 450 is arranged such that the valve element 450a is located downstream of the partition member 425 and immediately downstream with a slight gap from the collecting passage member 426, and the lower surface of the valve element 450a is formed with a straight discharge flow path. It is arranged at a position closest to the opening 427a formed at the upper end of the member 427,
The lid of the straight discharge flow path forming member 427 can be covered from above, and the valve body 450a is opened by operating the switching lever 451.
The switching lever 451 is provided so that the valve body 450a can be freely rotated in and out of the upper end of the straight discharge flow path forming member 427 in a range from the position directly above the valve body 450a to the entirety of the valve body 450a being displaced from the position of the opening 427a. Set the rotation angle of.

[Effects] In the fourth embodiment configured as described above, the protrusion 441 of the flow path switching valve 440 provided at the end of the grip portion 410 on the hose connection portion 414 side is connected to the outer peripheral surface of the grip portion 410. Between the purified water and the raw water by operating the switching lever 451 of the discharge switching valve 450, independently of the switching between the purified water and the raw water. And can be switched.

Now, by operating the projecting portion 441 of the flow path switching valve 440, as shown in FIGS.
When 0 is set to the purified water discharge position, the position of the hole 443e drilled on the valve body side coaxially matches the position of the hole 443e drilled on the valve seat side of the flow path switching valve 440, and the water purification cartridge The central space 432 of 430 is opened to communicate with the inlet side of the flow path switching valve 440. At this time, the mixed water flows into the holding portion 410 from the hose connection portion 414 side of the holding portion 410, and the inflowing mixed water flows into the hole 442e formed on the valve seat side of the flow path switching valve 440 and the valve body side. Hole 443 provided
e and flow path 417 on the inner surface side of cartridge receiver 417
b, reaches the central space 432 of the water purification cartridge 430, and from this central space 432, the filter 43
5 and the water quality purifying material 433, while purifying the water quality, flowing out to the outer peripheral side flow path 431, and the outer peripheral side flow path 431 communicates with the space 420 a of the head 420. The ribs 411b,.
11b and flows out into the space 420a of the head 420. And, from this space 420a, the collective passing member 4
According to the setting of the discharge switching valve 450 through the air outlet 26, the straight discharge flow path 427b or the shower discharge surface upstream space 4
20c, and straight discharge or shower discharge.

Next, when the purified water is discharged, the protruding portion 441 of the flow path switching valve 440 is rotated by a required angle in a predetermined direction along the outer peripheral surface of the grip portion 410, as shown in FIGS. As described above, when the flow path switching valve 440 is set at the raw water discharge position, the hole 442 formed on the valve seat side of the flow path switching valve 440 is set.
e, the position of the hole 443f drilled on the valve body side coincides coaxially, and the outer peripheral side flow path 4 of the water purification cartridge 430 is
31 is opened to communicate with the inlet side of the flow path switching valve 440, and the central space 432 of the water purification cartridge 430 is opened.
Is closed from the inlet side of the flow path switching valve 440.

At this time, when the mixed water flows in from the hose connection side of the grip portion 410, the hole 442e formed on the valve seat side of the flow path switching valve 440 and the hole 4 formed on the valve body side.
43f, and flows into the outer flow path 431 of the water purification cartridge 430 via the outer flow path 417a of the cartridge receiver 417. It flows out into the space 420a. And, from this space 420a, the collective passing member 4
26, the straight discharge flow path 427b or the shower discharge surface upstream space 42 in accordance with the setting of the discharge switching valve 450.
0c, and straight discharge or shower discharge. Thereafter, when the projecting portion 441 of the flow path switching valve 440 is rotated along the outer peripheral surface of the grip portion 410 by the same angle in the opposite direction to the case of raw water discharge, the flow returns to the case of pure water discharge as shown in FIGS. , And can discharge purified water.

Further, the operation of the discharge switching valve 450 can be performed independently of the operation of the flow path switching valve 440, and the straight discharge and the shower discharge can be arbitrarily set. First, when the switching lever 451 is operated to rotate to the straight discharge side about the axis of the valve shaft, the valve body 450a
Is the opening 427a of the straight discharge flow path forming member 427
And the mixed water flowing out of the collecting passage member 426 flows out of the opening 427 of the straight discharge flow path forming member 427.
a, and passes through the inside of the straight discharge channel 427b to be discharged from the straight discharge port 422.

When the switching lever 451 is set to the straight discharge side and the switching lever 451 is operated in the opposite direction to rotate toward the shower discharge side about the axis of the valve shaft, FIG. Or, as shown in 91, the plate portion 450b of the valve body 450a is positioned above the opening 427a of the straight discharge flow path forming member 427 so that the opening 427a
And the mixed water flowing out of the collecting passage member 426 is blocked by the plate portion 450b of the valve body 450a and flows out around the straight discharge flow path forming member 427, and the shower formed by the partition member 425 and the shower plate 421. The liquid is discharged from the shower discharge port 423 via the discharge surface upstream space 420c. Thereafter, when the switching lever 451 is operated to rotate to the straight discharge side about the axis of the valve shaft, the liquid is discharged from the straight discharge port 422 as described above.

As a result, the projecting portion 4 of the flow path switching valve 440 is
By rotating the grip 41 around the central axis of the grip portion 410 and along the outer peripheral surface, it is possible to easily switch between the purified water discharge and the raw water discharge. From the part 432 to the outer peripheral side flow path 431, the water is purified when passing through the water purification material 433. In addition, since the discharge switching valve 450 is completely independent of the flow path switching valve 440, even if either raw water or purified water is discharged, either straight discharge or shower discharge is selected. It can be ejected and four available forms can be selected.

[0127]

As described above, according to the present invention, in the shower head having the water purifying function according to the first aspect, the head having the shower discharge port and the grip portion accommodating the water quality purifying cartridge are formed integrally. A flow path switching valve for switching between purified water and raw water is provided on the upstream side or downstream side of the water purification cartridge accommodating portion of the grip portion, and the flow path switching valve is provided with an axis parallel to a valve seat flow path. The valve body is formed as a rotary shutoff valve that rotates around the valve body, and an operation unit of the flow path switching valve is disposed outside the grip unit so as to be operable from outside the grip unit. A discharge switching valve that functions independently of the flow path switching valve and switches between shower discharge and straight discharge is provided upstream of the discharge port of the section, and the discharge switching valve is provided in a direction crossing the valve seat flow path. Formed as a shut-off valve where the body moves In addition, by disposing the operation part of the discharge switching valve outside the head and operable from the outside of the head, it is possible to easily switch the flow path between raw water and purified water, and to perform discharge switching. Independent of flow path switching,
Shower discharge and straight discharge can be selected for each of raw water and purified water, and the operability is good, the production is easy, and the cost can be reduced.

In the shower head with a water purification function according to a second aspect of the present invention, a valve seat flow path is formed in a plate-like member which fixes the flow path switching valve to a grip portion and divides the grip portion into two in the axial direction. And a plate-shaped rotating member formed concentrically with the valve seat is rotatably mounted on the valve seat, and the attached plate-shaped rotating member is provided with a water purification flow path and a raw water flow path. By switching the plate-shaped rotating member with respect to the valve seat, switching between raw water and purified water can be performed, the flow path configuration is simplified, and the flow path switching valve is provided in the axial direction. The exclusive area can be configured to be small, the capacity for storing the water purification material can be increased, and the flow path can be easily switched with a simple configuration, with good operability.
The shower head with a water purification function according to claim 3 is
A filter is provided on the outer peripheral surface of the water purification cartridge, and a purification flow path that passes from the outer peripheral side to the inner surface side is formed, so that the filter can be formed large and the flow path resistance can be reduced. When the flow path is formed as a flow path that is shared by both the raw water discharge and the purified water discharge, solid substances that cause clogging accumulated during the purified water discharge can be washed out during the raw water discharge. In addition, clogging is hardly caused, and the life of the water purification cartridge can be extended. Further, in the shower head with a water purification function according to claim 4, the filter for water purification is provided with a filter on the inner surface, and a purification flow path that passes from the inner surface side to the outer peripheral surface side is formed. When the flow path configuration is simplified, and the flow path on the inner surface side is formed as a flow path shared by both the raw water discharge and the purified water discharge, clogging accumulated during the purified water discharge is caused. Such a solid substance can be washed out at the time of discharging the raw water, thereby preventing clogging and prolonging the life of the water purification cartridge.

Further, in the shower head with a water purification function according to claim 5, the discharge switching valve is formed as a rotary shutoff valve that rotates a valve body around an axis parallel to a valve seat flow path. Thereby, the valve body can be formed in a thin plate shape, and the accommodation space can be compressed in the flow path direction, and the size of the head can be further reduced. Further, the shower head with a water purification function according to claim 6 is configured such that the discharge switching valve faces the plate surface of the valve body substantially perpendicularly to a valve shaft, and is located at a position separated from the valve shaft via an arm portion. By disposing the plate surface and forming the valve body as a rotary shutoff valve that rotates around a valve axis, the moving distance of the valve body with respect to the rotation angle of the valve body can be increased, and the valve can be separated by the separation distance. The valve body can be removed from the seat, the valve body provided in the narrow accommodation space can be effectively moved, and the valve body can be removed from the valve seat with a small rotation angle when separated from the valve seat. It is possible to effectively switch between the shower discharge and the straight discharge, which are the output directions.

[Brief description of the drawings]

FIG. 1 is a plan view showing a shower head with a water purification function according to a first embodiment of the present invention.

FIG. 2 is a right side view showing the shower head with a water purification function according to the first embodiment.

FIG. 3 is a left side view showing the shower head with a water purification function according to the first embodiment.

FIG. 4 is a side cross-sectional view showing the shower head with a water purification function in the state of discharging purified water (viewed along the arrow AA in FIG. 1).

FIG. 5 is a plan cross-sectional view (a view taken in the direction of arrow BB in FIG. 2) of the shower head with a water purification function in the state of discharging purified water.

FIG. 6 is a cross-sectional view showing the position of the flow path switching valve in a state where the shower head having the water purification function discharges purified water (FIG. 2).
FIG.

FIG. 7 is a lower plan view showing the head of the shower head with the water purification function.

FIG. 8 is a side cross-sectional view showing the head of the shower head with a water purification function (viewed along the line DD in FIG. 7).

FIG. 9 is a cross-sectional view (E in FIG. 8) of the shower head with the water purification function at the position where the flow path switching valve is formed on the head;
-E arrow view).

FIG. 10 is a side view showing a tube portion on the hose connection side of the grip portion in the shower head with a water purification function.

FIG. 11 is a front view showing a tube portion on the hose connection side of the grip portion in the shower head with a water purification function.

FIG. 12 is a rear front view showing a tube portion on the hose connection side of the grip portion in the shower head with a water purification function.

FIG. 13 is a vertical cross-sectional view (F in FIG. 10) showing a tube portion on the hose connection side of the grip portion in the shower head with the water purification function.
-F arrow view).

FIG. 14 is a front view showing a protruding portion of a flow path switching valve in the shower head with a water purification function according to the third embodiment.

FIG. 15 is a lower plan view showing a protruding portion of a flow path switching valve in the shower head with a water purification function according to the third embodiment.

FIG. 16 is a vertical cross-sectional view (a view taken along the line GG of FIG. 14) showing a protruding portion of the flow path switching valve in the shower head having the water purification function.

FIG. 17 is a front view showing a valve seat forming member of the flow path switching valve in the shower head with the water purification function.

18 is a vertical sectional view showing a valve seat forming member of the flow path switching valve in the shower head having the water purification function (H- in FIG. 17).
H arrow view).

FIG. 19 is a rear front view showing a valve seat forming member of the flow path switching valve in the shower head having the water purification function.

FIG. 20 is a front view showing a valve body forming member of the flow path switching valve in the shower head having the water purification function.

FIG. 21 is a vertical cross-sectional view (a view taken along the line II of FIG. 20) of the shower head with a water purification function, showing a valve body forming member of the flow path switching valve and passing through a hole on the purified water discharge side.

FIG. 22 is a vertical cross-sectional view (a view taken along the arrow JJ in FIG. 20) of the shower head with a water purification function, showing a valve body forming member of the flow path switching valve and passing through a hole on the raw water discharge side.

FIG. 23 is a rear front view showing a valve body forming member of the flow path switching valve in the shower head with the water purification function.

FIG. 24 is a plan view showing a partition member in the shower head with a water purification function.

FIG. 25 is a side cross-sectional view showing a partition member in the shower head with a water purification function (as viewed in the direction of arrows KK in FIG. 24).

FIG. 26 is a bottom plan view showing a partition member in the shower head with a water purification function.

FIG. 27 is a plan view showing a collecting passage member in the shower head with a water purification function of the above.

FIG. 28 is a side cross-sectional view showing the collecting passage member in the shower head with the water purification function (viewed along the line LL in FIG. 27).
It is.

FIG. 29 is a lower plan view showing a collecting passage member in the shower head with a water purification function of the above.

FIG. 30 is a plan view showing a shower plate in the shower head with the water purification function.

FIG. 31 is a left side view showing a shower plate in the shower head with the water purification function.

FIG. 32 is a longitudinal sectional view showing the shower plate in the shower head with a water purification function (viewed along the line MM in FIG. 30).

FIG. 33 is a bottom plan view showing a shower plate in the shower head with the water purification function.

FIG. 34 is a plan view showing a straight discharge flow path forming member in the shower head with a water purification function.

FIG. 35 is a longitudinal sectional view showing a straight discharge flow path forming member in the shower head with a water purification function (viewed from the arrow NN in FIG. 34).

FIG. 36 is a lower plan view showing a straight discharge flow path forming member in the shower head with a water purification function according to the third embodiment.

FIG. 37 is an explanatory view showing a switching lever of a discharge switching valve in the shower head with the water purification function, wherein (A) is a side view, (B) is a front view, (C) is a rear front view, and (D) is (E) is a bottom plan view.

38 is an explanatory diagram showing a valve body of a discharge switching valve in the shower head with a water purification function, wherein FIG. 38 (A) is a side view,
(B) is a front view, (C) is a rear front view, (D) is a plan view,
(E) is a bottom plan view.

FIG. 39 is a side cross-sectional view showing a valve body of a discharge switching valve in the shower head with a water purification function (P- in FIG. 38D);
FIG.

40 is a cross-sectional plan view showing the shower head with the water purification function in a state at the time of discharging raw water (a view corresponding to the arrow BB in FIG. 2);
It is.

41 is a side cross-sectional view showing the shower head with a water purification function in a state at the time of discharging raw water (a view corresponding to an arrow AA in FIG. 1);
It is.

42 is a transverse cross-sectional view (corresponding to an arrow CC in FIG. 2) of the shower head with a water purification function in the state of discharging raw water at the position of the flow path switching valve.

FIG. 43 is a plan cross-sectional view (equivalent to an arrow BB in FIG. 2) showing a state at the time of discharging purified water in the shower head with a purified water function according to the second embodiment of the present invention.

FIG. 44 is a side cross-sectional view (a view corresponding to the line AA in FIG. 1) showing a state when the purified water is discharged in the shower head having the water purification function.

FIG. 45 is a cross-sectional view (corresponding to an arrow CC in FIG. 2) of the shower head with the water purification function, showing the position of the flow path switching valve.

FIG. 46 is a bottom plan view showing a tube portion on the hose connection side of the holding portion in the shower head with the water purification function.

FIG. 47 is a front view showing a tube portion on the hose connection side of the grip portion in the shower head with a water purification function according to the third embodiment.

FIG. 48 is a rear front view showing a tubular portion of the shower head with a water purification function on the hose connection side of the gripping portion.

49 is a side cross-sectional view (a view taken along the line FF in FIG. 46) showing the tubular portion of the shower head with the water purification function on the hose connection side of the gripping portion.

FIG. 50 is a front view showing a valve seat forming member of the flow path switching valve in the shower head with the water purification function.

FIG. 51 is a side sectional view showing a valve seat forming member of the flow path switching valve in the shower head having the water purification function (H in FIG. 50);
-H arrow view).

FIG. 52 is a front view showing a valve body forming member of the flow path switching valve in the shower head with the water purification function.

53 is a vertical cross-sectional view (a view taken along the arrow II of FIG. 52) of the shower head with a water purification function, showing a valve body forming member of the flow path switching valve and passing through a hole on the raw water discharge side.

54 is a vertical cross-sectional view (a view taken along the arrow JJ in FIG. 52) of the showerhead with a water purification function, showing a valve body forming member of the flow path switching valve and passing through a hole on the purified water discharge side.

FIG. 55 is a rear front view showing a valve body forming member of the flow path switching valve in the shower head with the water purification function.

56 is a cross-sectional plan view showing the shower head with a water purification function in a state of discharging raw water (equivalent to the view taken along the line BB in FIG. 2);
It is.

FIG. 57 is a side sectional view showing the shower head with a water purification function in a state at the time of discharging raw water (corresponding to the AA arrow in FIG. 1);
It is.

58 is a cross-sectional view (corresponding to a view taken along the line CC in FIG. 2) of the shower head with a water purification function in the state of discharging raw water at the position of the flow path switching valve.

FIG. 59 is a plan view showing a shower head with a water purification function according to a third embodiment of the present invention.

FIG. 60 is a right side view showing the shower head with the water purifying function.

FIG. 61 is a left side view showing the shower head with the water purification function.

FIG. 62 is a cross-sectional plan view showing the shower head with the water purification function in a state of discharging purified water (as viewed in the direction of arrow BB in FIG. 60).

63 is a side cross-sectional view showing the shower head with a water purification function in a state at the time of discharging purified water (viewed along the line AA in FIG. 59).

FIG. 64 is a cross-sectional view of the shower head with a water purification function at the position of the flow path switching valve in a state of discharging purified water (as viewed in the direction of arrows CC in FIG. 60).

FIG. 65 is a lower plan view showing the head of the shower head with the water purification function.

FIG. 66 is a side sectional view showing the head of the shower head with a water purification function according to the embodiment (viewed along the line DD in FIG. 65);

FIG. 67 is a plan view showing a grip portion on the hose connection side in the shower head with a water purification function.

FIG. 68 is a front view showing a grip on the hose connection side of the shower head with a water purification function according to the third embodiment.

FIG. 69 is a rear front view showing a grip on the hose connection side of the shower head with a water purification function according to the first embodiment;

70 is a side cross-sectional view showing a grip portion on the hose connection side of the shower head with a water purification function (F-F in FIG. 67);
FIG.

FIG. 71 is a front view showing a protruding portion of a flow path switching valve in the shower head with a water purification function of the above.

FIG. 72 is a lower plan view showing a protruding portion of a flow path switching valve in the shower head with a water purification function according to the third embodiment.

73 is a side cross-sectional view (a view taken along the line GG of FIG. 71) showing a protruding portion of the flow path switching valve in the shower head having the water purification function.

74 is a front view showing a valve seat forming member of the flow path switching valve in the shower head with the water purification function. FIG.

75 is a side sectional view showing a valve seat forming member of the flow path switching valve in the shower head having the water purification function (H in FIG. 74);
-H arrow view).

76 is a rear front view showing a valve seat forming member of the flow path switching valve in the shower head with the water purification function. FIG.

FIG. 77 is a front view showing a valve body forming member of the flow path switching valve in the shower head with the water purification function.

78 is a side cross-sectional view (viewed along the arrow II in FIG. 77) of the shower head with a water purification function, showing the valve body forming member of the flow path switching valve and passing through a hole on the raw water discharge side.

FIG. 79 is a side cross-sectional view (a view taken along the arrow JJ in FIG. 77) showing a valve forming member of the flow path switching valve in the shower head with the water purification function, showing the hole on the purified water discharge side.

FIG. 80 is a rear front view showing a valve body forming member of the flow path switching valve in the shower head with the water purification function.

FIG. 81 is a cross-sectional plan view (a view corresponding to the arrow BB in FIG. 60) showing the shower head with the water purification function in a state at the time of discharging raw water.

FIG. 82 is a side cross-sectional view (a view corresponding to the line AA in FIG. 59) showing the shower head with the water purification function in the state at the time of discharging raw water.

83 is a transverse cross-sectional view (a view corresponding to the arrow CC in FIG. 60) showing the position of the flow path switching valve in a state where the raw water is discharged from the shower head with the water purification function.

FIG. 84 is a cross-sectional plan view (a view corresponding to the arrow BB in FIG. 60) illustrating a state at the time of discharging purified water in the shower head with a purified water function of the fourth embodiment of the present invention.

FIG. 85 is a side cross-sectional view (a view corresponding to an arrow AA in FIG. 59) showing a state at the time of discharging purified water in the shower head with the purified water function.

86 is a horizontal cross-sectional view (a view corresponding to the line CC in FIG. 60) showing the state of the shower head with a water purification function at the time of purifying purified water at the position of the flow path switching valve.

FIG. 87 is a bottom plan view showing the head of the shower head with the water purification function.

FIG. 88 is a side cross-sectional view showing the head of the shower head with a water purification function (viewed along the line DD in FIG. 87).

FIG. 89 is a rear front view showing the head of the shower head with a water purification function (viewed from the arrow E in FIG. 88).

90 is a cross-sectional plan view showing the shower head with a water purification function in a state at the time of discharging raw water (a view corresponding to the arrow BB in FIG. 60). FIG.

FIG. 91 is a side cross-sectional view (a view corresponding to the line AA in FIG. 59) showing the shower head with a water purification function in a state at the time of discharging raw water.

FIG. 92 is a transverse cross-sectional view (a view corresponding to the arrow CC in FIG. 60) showing the position of the flow path switching valve in a state where the shower head with a water purification function is discharging raw water.

[Explanation of symbols]

100, 200, 300, 400 Shower head with water purification function 110, 210, 310, 410 Holder 111, 112, 211, 212, 311, 312, 4
11, 412 cylindrical portion 111a, 211a, 311a, 411a (rectangular) hole 112a, 411b rib 112b, 212b end surface 113, 213, 313, 413 relay portion 113a, 313a cylindrical inner surface 113b, 313b female screw 113c, 213c, 313c, 413c Male thread 113d, 313d Cylindrical inner surface 113e, 213e, 313e, 413e Cylindrical outer surface 114, 214, 314, 414 Hose connection part 114a, 214a, 314a, 414a Projection part 115, 215, 315, 315 Hose mounting screw 116, 216, 217, 316, 317, 417 Cartridge receiver 116a, 216a, 316a (outer peripheral side) flow path 116b, 216b, 316b (inner side) flow path 217a, 317a, 417a (outer peripheral side) flow path 217 b, 317b, 417b Flow path (on the inner side) 120, 220, 320, 420 Head 120a, 220a, 320a, 420a Space (cavity) 120b, 220b, 320b, 420b Head skin 120c, 220c, 320c, 420c Shower Discharge surface upstream space (discharge switching valve accommodating space) 121, 221, 321, 421 Shower plate 121a Disk portion 121b Overhanging portion 121c Multi-section female screw 121d Stepped portion 121e Concave portion 121f Projected portion 122, 222, 322, 422 Straight discharge Outlet 123, 223, 323, 423 Shower outlet 124 Shaft hole 125, 225, 325, 425 Partition member 125a Disc-shaped partition plate 125b, 125c Ring member 125d Fitting hole 125e Multi-threaded male screw 125f O-ring groove 126, 226, 32 , 426 Collecting passing member 126a Column portion 126b Groove 126c Light beam 126d Flange 127, 227, 327, 427 Straight discharge flow path forming member 127a, 227a, 327a, 427a Opening 127b, 227b, 327b, 427b Straight discharge flow path 130, 230, 330, 430 Water purification cartridge 131, 231, 331, 431 Outer flow path 132, 232, 332, 432 Central space 133, 233, 333, 433 Water purification material 134, 235, 334, 435 Filter 140, 240, 340, 440 Flow path switching valve 141, 241, 341, 441 Projecting portion 141a, 241a Finger hook 141b, 241b Operating member 141c, 241c Locking portion 142, 242, 342, 442 Valve seat forming member 142a, 24 2a Disk portions 142b, 242b Peripheral protrusions 142c, 242c Valve fitting portions 142d, 242d Thick portions 142e, 242e Holes 142f, 242f, 342f, 442f O-ring grooves 143, 243, 343, 443 Valve body forming member 143a , 243a Thick disk 143b, 243b Outer cylinder 143c, 243c Thick 143d, 243d O-ring groove 143e, 243e, 343e, 443e Hole 143f, 243f, 343f, 443f Hole 143g, 243g, 343g 143g , 243h, 243i, 343h,
343i Key-shaped member 150, 250, 350, 450 Discharge switching valve 150a, 250a, 350a, 450a Valve 150b, 250b, 350b, 450b Plate 150c Arm 150d Fitting hole 150e Shaft coupling 151,251,351,451 Switching lever 151a Valve shaft 151b Lever part 151c Finger hook part 151d Concave part 151e Elastic locking part

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2D032 FA04 2D060 CB03 CD09 4D024 AA02 AA06 AB11 BA02 BB02 BB03 CA04 CA05 CA13 4D064 AA11 AA17 AA25 BF40 BJ02 BJ10 BN01

Claims (6)

[Claims] 1. A head having a shower discharge port and a grip for accommodating a water quality purifying cartridge in an exchangeable manner are integrally formed, and water is purified upstream or downstream of a water quality purifying cartridge accommodating portion of the grip. And a flow switching valve for switching between the raw water and the raw water. The flow switching valve is formed as a rotary shutoff valve for rotating a valve body about an axis parallel to a valve seat flow channel, and the grip portion is provided. The operation part of the flow path switching valve is arranged outside and formed to be operable from the outside of the gripping part, and further functions independently of the flow path switching valve on the upstream side of the discharge port of the head. A discharge switching valve for switching between shower discharge and straight discharge is provided. The discharge switching valve is formed as a shutoff valve in which a valve element moves in a direction crossing a valve seat flow path, and the discharge switching valve is provided outside the head. Outside of the head Water purification function shower head is characterized in that a more operably formation. 2. A valve seat is formed by drilling a valve seat flow passage in a plate-like member which fixes the flow passage switching valve to a grip portion and bisects the grip portion in the axial direction, and forms a valve seat, and is concentric with the valve seat. A plate-shaped turning member formed in a rotatable manner is rotatably attached to the valve seat, and a flow path for purified water and a flow path for raw water are formed in the attached plate-shaped turning member. Item 7. A shower head with a water purification function according to item 1. 3. The shower head with a water purification function according to claim 1, wherein a filter is provided on an outer peripheral surface of the water purification cartridge, and a purification flow path is formed to pass from an outer peripheral side to an inner surface side. 4. A shower head with a water purification function according to claim 1, wherein a filter is provided on the inner surface of said water purification cartridge, and a purification flow path is formed to pass from the inner surface side to the outer peripheral surface side. 5. A water purifying function according to claim 1, wherein said discharge switching valve is formed as a rotary shutoff valve for rotating a valve body around an axis parallel to a valve seat flow path. shower head. 6. The valve according to claim 6, wherein the discharge switching valve is arranged so that a plate surface of the valve body is substantially perpendicular to a valve shaft, and the plate surface is disposed at a position separated from the valve shaft via an arm portion. The shower head with a water purification function according to claim 6, wherein the body is formed as a rotary shutoff valve that rotates around a valve axis.