JP6801190B2 - shower head - Google Patents

Description

The present invention relates to a shower head.

The raw water supplied to the shower used in the bathroom, wash basin, barber shop, beauty salon, etc. of a general household is usually tap water. However, since tap water contains a large amount of residual chlorine, frequent washing of the hair and body with a shower may cause damage to the hair, discoloration, or rough skin. Therefore, a shower head including a water treatment cartridge filled with a dechlorinating agent such as calcium sulfite having a dechlorinating function has been proposed.

Examples of the shower head provided with the water treatment cartridge include the following.
(I) A shower head in which a shower cap is attached to the front side of the head portion of the shower head main body, a water treatment cartridge is housed in the head portion, and a bypass flow path is provided outside the water treatment cartridge in the head portion. Patent Document 1).
(Ii) A shower cap is attached to the front side of the head portion of the shower head main body, a water treatment cartridge is housed in the head portion, and the primary side and the secondary side in the head portion are watertightly separated by an O-ring. Head (Patent Document 2).

In the shower head of (i), most of the raw water passes through the water treatment cartridge, while a part of the raw water passes through the bypass path and joins and is sprinkled on the secondary side of the water treatment cartridge. By passing a part of the raw water through the bypass path in this way, the pressure loss is reduced even when the dechlorinating agent of the water treatment cartridge is filled at high density. However, since the raw water that has passed through the bypass path is untreated, the residual chlorine concentration of the water sprinkled from the watering holes near the bypass path tends to be high.

In the shower head of (ii), since the bypass path is not provided in the head portion, the entire amount of raw water passes through the water treatment cartridge and is dechlorinated. However, the O-ring may be twisted when the water treatment cartridge is inserted into the head portion, and the watertightness of the separation between the primary side and the secondary side of the water treatment cartridge in the head portion may be insufficient. Further, when the cartridge replacement is repeated, the O-ring is worn or damaged due to the sliding at that time, so that the watertightness of the separation between the primary side and the secondary side of the water treatment cartridge in the head portion tends to decrease.

JP-A-11-239740 Japanese Unexamined Patent Publication No. 2000-271033

An object of the present invention is to provide a shower head capable of sufficiently ensuring watertightness of isolation between the primary side and the secondary side of the water treatment cartridge in the head portion even if the water treatment cartridge is repeatedly replaced.

The present invention has the following configurations.
[1] A shower head main body having a grip and a head portion provided at the tip of the grip, a shower cap attached to the front side of the head portion, and a cleaning material housed in the head portion and filled inside. A water treatment cartridge and a packing having an annular shape with a flat surface formed inside are provided.
A shower head in which the packing is provided so as to watertightly separate the primary side and the secondary side of the water treatment cartridge in the head portion.
[2] The outer surface of the water treatment cartridge is provided with a step on the side facing the primary side in the head portion.
The shower head according to [1], wherein a support portion that abuts on the step and supports the water treatment cartridge is provided in the head portion.
[3] The shower head according to [1] or [2], wherein the shower cap is attached to the head portion by a bayonet type.

In the shower head of the present invention, even if the water treatment cartridge is repeatedly replaced, the watertightness of the isolation between the primary side and the secondary side of the water treatment cartridge in the head portion can be sufficiently ensured.

It is sectional drawing which showed an example of the shower head of this invention. It is a side view which showed the water treatment cartridge of the shower head of FIG. It is a front view which showed the water treatment cartridge of the shower head of FIG.

Hereinafter, an example of the shower head of the present invention will be described.
As shown in FIG. 1, the shower head 1 of the present embodiment includes a shower head main body 10, a shower cap 12, a water treatment cartridge 14, and a packing 16.

The shower head main body 10 includes a grip 18 and a head portion 20 provided at the tip of the grip 18.
The grip 18 is not particularly limited, and examples thereof include a grip 18 having a tubular shape that can be gripped so that the lower end portion can be connected to a shower hose or the like.

The head portion 20 has a circular shape when viewed from the front, and is provided so as to protrude toward the front side with respect to the grip 18. Inside the head portion 20, a storage portion 22 for accommodating the water treatment cartridge 14 is formed, which is composed of a hollow portion communicating with the flow path 18a in the grip 18.

A plurality of plate-shaped support portions 24 are provided on the back side of the storage portion 22 in the head portion 20 to abut and support the water treatment cartridge 14 stored in the storage portion 22. The plurality of support portions 24 are provided at intervals along the inner peripheral wall so as to project toward the center along the inner peripheral wall when the head portion 20 is viewed from the front. When the water treatment cartridge 14 is stored in the storage portion 22, the tip portion of the support portion 24 on the front side of the head portion 20 comes into contact with the water treatment cartridge 14.
The shape of the support portion is not limited to the plate shape. Further, the number of support portions is not particularly limited and can be appropriately determined. For example, on the back side of the storage portion 22 in the head portion 20, one support portion continuously formed over the entire circumference may be provided along the inner peripheral wall when the head portion 20 is viewed from the front.

Further, in the head portion 20, a support column 26 is provided so as to project from the central portion toward the front when the head portion 20 on the inner wall surface on the back side is viewed from the front. The support column 26 includes a rod-shaped support column body 26a and a protrusion 26b protruding from the tip surface of the support column body. The protrusion 26b on the support column 26 is adapted to fit into the recess 17a of the water treatment cartridge 14, which will be described later.

The front end portion 28 of the head portion 20 is composed of a cylindrical first peripheral wall portion 30 and a cylindrical second peripheral wall portion 32 surrounding the first peripheral wall portion 30, and has a double structure over the entire circumference. There is. That is, the tip portion 28 of the head portion 20 has a double structure in which the first peripheral wall portion 30 and the second peripheral wall portion 32 are provided in this order from the inside when the head portion 20 is viewed from the front. The first peripheral wall portion 30 and the second peripheral wall portion 32 are provided apart from each other, and a gap is formed between them.

A plurality of protrusions 34 extending in the circumferential direction are partially provided on the outer wall surface of the inner first peripheral wall portion 30. Further, a groove 36 is provided on the outer wall surface of the first peripheral wall portion 30 on the tip side of the convex stripe 34 over the entire circumference. An O-ring 38 is mounted on the groove 36.

The shower cap 12 includes a cylindrical side wall portion 40 and a disc-shaped sprinkler plate 42 provided so as to close the tip opening of the side wall portion 40. A plurality of recesses 44 corresponding to a plurality of protrusions 34 provided on the first peripheral wall portion 30 of the head portion 20 are partially formed on the inner wall surface of the side wall portion 40 on the rear end side portion opposite to the sprinkler plate 42. It is provided in. The shape of the recess 44 when the inner wall surface of the side wall portion 40 is viewed from the front is a shape that extends from the edge of the side wall portion 40 opposite to the sprinkler plate 42 toward the sprinkler plate 42 and further bends vertically in the circumferential direction. ing.

The rear end side portion of the side wall portion 40 opposite to the sprinkler plate 42 is between the first peripheral wall portion 30 and the second peripheral wall portion 32 of the head portion 20 when the shower cap 12 is mounted on the front side of the head portion 20. Will be inserted into. At this time, the rear end side portion of the side wall portion 40 is placed between the first peripheral wall portion 30 and the second peripheral wall portion 32 so that the protrusion 34 provided on the first peripheral wall portion 30 of the head portion 20 fits into the recess 44. insert. Then, the shower cap 12 is rotated in the circumferential direction, and the protrusion 34 is moved to the back side of the portion extending in the circumferential direction in the recess 44. By fitting the ridge 34 into the recess 44 in this way, the shower cap 12 is locked in a state of being attached to the head portion 20.
Further, in this state, the space between the side wall portion 40 of the shower cap 12 and the first peripheral wall portion 30 of the head portion 20 is watertightly sealed by the O-ring 38.

In the present invention, the mounting structure of the shower cap to the head portion is preferably a bayonet type as in this example. If the mounting structure of the shower cap is a bayonet type, the shower cap can be easily attached and detached as compared with the attachment by screwing. Therefore, even if soap, shampoo, or the like adheres to the hands when replacing the cartridge, the shower cap can be easily removed and the cartridge can be replaced.

A plurality of watering holes 42a are formed in the watering plate 42. The number of sprinkler holes 42a in the sprinkler plate 42 is not particularly limited and can be appropriately determined. Further, the distribution pattern of the sprinkler holes 42a in the sprinkler plate 42 is not particularly limited, and a known pattern can be adopted.

The material of the shower head main body 10 and the shower cap 12 is not particularly limited, and known materials used for the shower head can be adopted. Specific examples thereof include heat-resistant resins having a softening point of 80 ° C. or higher, such as polypropylene, polyphenylene ether, polyoxymethylene, polycarbonate, ABS, ASA, and PMP resin, and metals such as stainless steel.
The manufacturing method of the shower head main body 10 and the shower cap 12 is not particularly limited, and a known molding method or the like can be adopted.

As shown in FIGS. 1 to 3, the water treatment cartridge 14 includes a cylindrical body portion 14a, a disk-shaped first plate portion 14b provided so as to close one open end of the body portion 14a, and a body. It includes a disc-shaped second plate portion 14c provided so as to close the other open end of the portion 14a. Each of the first plate portion 14b and the second plate portion 14c is curved so that the central portion protrudes outward. In this example, the water treatment cartridge 14 is housed in the head portion 20 so that the first plate portion 14b is on the primary side and the second plate portion 14c is on the secondary side.
The inside of the water treatment cartridge 14 is filled with the purifying material 13.

A plurality of openings 15a are formed in the first plate portion 14b. Further, a plurality of openings 15b are formed in the second plate portion 14c. In this example, the raw water that has flowed into the head portion 20 through the flow path 18a of the grip 18 flows into the water treatment cartridge 14 from the opening 15a, passes through the purifying material 13, and the purified water flows out from the opening 15b. It has become.

As shown in FIGS. 1 and 3, a recess 17a is formed in the central portion of the outer surface of the first plate portion 14b of the water treatment cartridge 14. Further, as shown in FIGS. 1 and 2, a step 46 formed of an annular recess is formed on the outer peripheral surface of the first plate portion 14b.

When the water treatment cartridge 14 is stored in the storage portion 22 in the head portion 20, the tip portion of the support portion 24 provided in the head portion 20 is brought into contact with the water treatment cartridge 14 so as to fit in the step 46. As a result, the water treatment cartridge 14 is supported. In the present invention, as described above, a step is provided on the outer surface of the head portion of the water treatment cartridge on the side facing the primary side, and the support portion provided in the head portion is brought into contact with the step to support the water treatment cartridge. It is preferable to do so. As a result, the water treatment cartridge is stably held in the head portion.
Further, in this example, the protrusion 26b of the support column 26 is fitted into the recess 17a with the water treatment cartridge 14 housed in the head portion 20. Therefore, the water treatment cartridge 14 is held more stably in the head portion 20.

The purifying material 13 is not particularly limited, and examples thereof include a dechlorinating agent, an ion exchange resin, and activated carbon. When removing residual chlorine in raw water, for example, a product formed by mixing a granular dechlorinating agent and a synthetic fiber, a powder dechlorinating agent wrapped in a non-woven fabric sheet, or the like may be used. The dechlorinating agent is not particularly limited, and examples thereof include calcium sulfite and ascorbic acid. The purifying material 13 may be one type or two or more types.
In addition to the dechlorinating agent, the purifying material 13 may contain agents such as an odor removing agent, a moisturizer, a cooling agent, and an fragrance agent.

In the water treatment cartridge 14 of this example, in the second plate portion 14c as well, the recess 17b is formed in the central portion of the outer surface and the peripheral portion of the outer surface is annular over the entire circumference, similarly to the first plate portion 14b. A step 48 is formed of the indentations. As a result, even when the water treatment cartridge 14 is housed in the head portion 20 so that the second plate portion 14c faces the primary side, the water treatment cartridge 14 is stably held by the support portion 24 and the support column 26. It has become.

The packing 16 is an annular packing having a flat surface formed inside. The packing 16 serves to watertightly separate the primary side and the secondary side of the water treatment cartridge 14 in the head portion 20.

The packing 16 in this example is annular and has a pentagonal cross-sectional shape perpendicular to the annular shape. As described above, the packing 16 is a V-shaped packing having five flat surfaces, of which the two inner flat portions 16a and 16b are formed so as to protrude in a V shape in the cross section. The cross-sectional shape of the packing is not limited to a pentagonal shape as long as a flat surface portion is formed inside, and may be, for example, a quadrangle or a hexagon.

In this example, the packing 16 is fixed so that the flat portion on the shower cap 12 side is in close contact with the sprinkler plate 42 side of the inner wall surface of the side wall portion 40 of the shower cap 12. Further, when the shower cap 12 is attached with the water treatment cartridge 14 housed in the head portion 20, the packing 16 has a flat surface portion 16a on the back side inside the packing 16 and a second body portion 14a of the water treatment cartridge 14. It is crimped over the entire circumference so as to be in close contact with the plate portion 14c. As a result, the primary side and the secondary side of the water treatment cartridge 14 in the head portion 20 are watertightly isolated, and the raw water in the head portion 20 passes through the outside of the water treatment cartridge 14 and wraps around to the sprinkler plate 42 side. Be prevented.
In this example, the tip portion of the first peripheral wall portion 30 of the head portion 20 is crimped so as to be recessed into the flat surface portion on the back surface side of the packing 16. Therefore, water leakage from the gap between the head portion 20 and the shower cap 12 is more stably suppressed.

In this way, in the shower head 1, the entire amount of raw water that has flowed into the head portion 20 through the flow path 18a of the grip 18 flows into the water treatment cartridge 14 to be purified, and the shower is performed from the sprinkler hole 42a of the sprinkler plate 42. Water is sprinkled in the shape. Further, since the packing 16 has higher rigidity than the O-ring, it is less likely to be twisted when the cartridge is replaced, and since it is excellent in wear resistance, it is less likely to be worn or damaged. Therefore, even if the water treatment cartridge is repeatedly replaced, the watertightness of the isolation between the primary side and the secondary side of the water treatment cartridge in the head portion can be sufficiently ensured.

As described above, in the shower head of the present invention, the primary side and the secondary side of the water treatment cartridge in the head portion are watertightly separated by the packing in which the flat portion is formed in an annular shape. Therefore, even if the water treatment cartridge is repeatedly replaced, the watertightness of the isolation between the primary side and the secondary side of the water treatment cartridge in the head portion can be sufficiently ensured.

The shower head of the present invention is not limited to the shower head 1 described above. For example, the packing having an annular shape and a flat portion formed inside may not be fixed to the inside of the shower cap, and may be fixed to the head portion of the shower head body, for example.
Further, the shower head of the present invention is a known water treatment cartridge as long as it watertightly separates the primary side and the secondary side of the water treatment cartridge in the head portion by a packing having an annular shape and a flat portion formed inside. It may be provided with. As for the shower head main body and the shower cap, a known aspect may be adopted, and the shower cap may be a screw type and screw-mounted to the head portion. Further, the shower head may be a shower head in which the support column 26 is not provided in the head portion 20.

1 Shower head 10 Shower head body 12 Shower cap 13 Purifying material 14 Water treatment cartridge 16 Packing 16a Flat part 18 Grip 20 Head part 22 Storage part 24 Support part 26 Supports 46, 48 Steps

Claims (4)

A shower head body having a grip and a head portion provided at the tip of the grip, a shower cap attached to the front side of the head portion, and a water treatment cartridge housed in the head portion and filled with a purifying material inside. and, with an annular packing, the,
The packing is formed with an inner flat surface portion to be crimped to the water treatment cartridge and a flat surface portion on the back surface side.
The packing is provided so as to watertightly separate the primary side and the secondary side of the water treatment cartridge in the head portion.
A shower head in which the inner flat surface portion of the packing is crimped to the water treatment cartridge, and the flat surface portion on the back surface side is crimped to the front end portion of the head portion. The shower head according to claim 1, wherein a convex portion is provided at a portion of the front end portion of the head portion that is crimped to a flat surface portion on the back surface side of the packing. The outer surface of the water treatment cartridge is provided with a step on the side facing the primary side in the head portion.
The shower head according to claim 1 or 2 , wherein a support portion that abuts on the step and supports the water treatment cartridge is provided in the head portion. The shower head according to any one of claims 1 to 3, wherein the shower cap is attached to the head portion by a bayonet type.

Images