JP7093698B2 - shower head - Google Patents

Description

The present invention relates to a shower head.

Conventionally, as a shower head, for example, the one described in Patent Document 1 is known. This shower head has a passage formed inside, and a sprinkler port composed of a large number of holes is provided at the tip thereof. A suction portion is provided on the back side of the base end of the shower head, which is opposite to the sprinkler side. The suction portion has a box-shaped synthetic resin case portion, and a permanent magnet and a yoke are housed in the case portion. The permanent magnet and the yoke are fixed to the case portion by screws.

Jikkenhei 2-80173 Gazette

By the way, in the above-mentioned shower head, a permanent magnet and a yoke are fixed to a synthetic resin case portion by screws. For this reason, it is necessary to make the thickness of the case portion considerably thick so that the screw can be sufficiently screwed into the case portion, so that there is a problem that the thickness of the suction portion becomes thick.

The present invention has been made by paying attention to such a situation. An object of the present invention is to provide a shower head capable of reducing the thickness of a wall portion of a grip portion to which a mounting member is attached by a screw.

Hereinafter, means for solving the above problems and their actions and effects will be described.
The shower head that solves the above-mentioned problems is a shower head including a grip portion, an inner member mounted in the grip portion, and a mounting portion provided on the wall portion of the grip portion and to which the mounting member is mounted by a screw. The mounting portion is provided with a through hole penetrating the wall portion and a nut inserted into the through hole, and the nut is restricted from rotating and moving to the outside of the wall portion. The gist is that it is in contact with the inner member in the state.

According to this configuration, the mounting member can be mounted on the wall portion of the grip portion by screwing the screw into the nut of the mounting portion, so that it is not necessary to screw the screw directly into the wall portion. Therefore, it is not necessary to increase the thickness of the wall portion of the grip portion to a thickness that allows the screw to be sufficiently screwed. Therefore, the thickness of the wall portion of the grip portion to which the mounting member is mounted by the screw can be reduced.

In the shower head, the nut is a flange nut having a flange portion and a nut portion having a non-circular outer shape, and the nut portion is inserted into the through hole from the inside of the wall portion. The through hole has a shape corresponding to the outer shape of the nut portion, and the flange portion preferably has a wider maximum width than the through hole.

According to this configuration, since the flange portion of the flange nut has a wider maximum width than the through hole, it functions as a restricting portion for restricting the movement of the flange nut to the outside of the wall portion of the grip portion. That is, by using a flange nut for the nut, it is not necessary to provide a restricting portion for restricting the movement of the nut to the outside of the wall portion of the grip portion on the wall portion of the grip portion, so that the thickness of the wall portion of the grip portion can be increased. It can be made even thinner.

In the shower head, a receiving portion for receiving the nut when the nut is pressed from the outside to the inside of the wall portion is provided at a position corresponding to the nut in the inner member. preferable.

According to this configuration, when a screw is screwed into the nut, it is possible to prevent the nut from rattling due to the receiving portion.

According to the present invention, the thickness of the wall portion of the grip portion to which the mounting member is mounted by the screw can be reduced.

The perspective view of the shower head of one Embodiment. FIG. 1 is a cross-sectional view. The exploded perspective view of FIG. Perspective view of the outer head. Perspective view of the inner head. FIG. 5 is a perspective view when viewed from the opposite side. Cross-sectional view of the head part. The cross-sectional view which shows the connection part of a head part and a grip part. The side view which shows the connection part of a head part and a grip part. The cross-sectional view which shows the state when the magnet unit is attached to the attachment part by a screw. The cross-sectional view which shows the state when the inner head is attached to the outer head. The cross-sectional view which shows the state when the inner head is attached to the outer head. The cross-sectional view which shows the state when the inner head is attached to the outer head. The perspective view which shows the state when the inner head is attached to the outer head. FIG. 6 is an enlarged schematic cross-sectional view of a main part showing a mounting portion in a modified example. FIG. 6 is an enlarged schematic cross-sectional view of a main part showing a mounting portion in another modified example.

Hereinafter, an embodiment of the shower head will be described with reference to the drawings.
As shown in FIGS. 1 and 2, the shower head 11 has a rod-shaped grip portion 12 extending substantially linearly and an angle of about 45 to the tip of the grip portion 12 with respect to the grip portion 12. It is provided with a substantially rectangular plate-shaped head portion 13 provided so as to be rotatable so as to be inclined at. On the surface of the tip of the grip portion 12 opposite to the side on which the head portion 13 is inclined, a magnet as an example of a suction portion that can be detachably attracted to a magnetic wall surface such as a shower room by magnetic force. A unit 14 is provided.

As shown in FIGS. 2 and 3, the head portion 13 includes an outer head 15 having a substantially bottomed rectangular box shape, an inner head 16 that allows water to pass through the inside and is directly attached to the outer head 15. It is attached to the inner head 16 and includes a watering plate 17 having a substantially rectangular shape corresponding to the outer head 15.

As shown in FIGS. 3 and 4, both the outer surface and the inner surface of the outer head 15 have a curved surface shape, and the depth on the inner surface side gradually becomes shallower from the proximal end side toward the distal end side. At the central portion of the inner bottom surface 18 of the outer head 15, a cylindrical positioning convex portion 19 constituting the positioning portion is formed. A pair of cylindrical boss portions 20 arranged at a distance in the width direction X are formed at a position closer to the base end than the positioning convex portion 19 on the inner bottom surface 18. A pair of cylindrical contact portions 21 arranged at a distance in the width direction X are formed at a position closer to the tip of the positioning convex portion 19 on the inner bottom surface 18.

A gate-shaped hooking portion 22 is formed at the tip portion of the inner bottom surface 18, that is, at the position on the tip end side of the contact portion 21 on the inner bottom surface 18 and at the center portion in the width direction X. The hooking portion 22 includes a beam portion 23 extending linearly in the width direction X, and a pair of column portions 24 extending linearly connecting both end portions of the beam portion 23 and the inner bottom surface 18. The length of the beam portion 23 is longer than the length of the pillar portion 24. Therefore, a substantially rectangular hooking hole 25 extending in the width direction X is formed between the hooking portion 22 and the inner bottom surface 18.

The side wall 26 located at the base end portion of the outer head 15 is formed with a first opening 27 formed by cutting the side wall 26 in a U shape. Holes 28 are formed so as to form a pair on both sides of the first opening 27 in the side wall 26 with the first opening 27 sandwiched in the width direction X.

As shown in FIGS. 3, 5 and 6, the inner head 16 is arranged so as to be sandwiched between the outer head 15 and the sprinkler plate 17. The inner head 16 has a disc-shaped cup portion 29 on the tip end side, and has a pipe portion 30 integrally formed with the cup portion 29 and extending in the radial direction of the cup portion 29 on the base end side. The surface of the cup portion 29 on the outer head 15 side is the first surface 31, and the surface of the cup portion 29 on the sprinkler plate 17 side is the second surface 32.

As shown in FIGS. 5 and 6, a circularly raised raised portion 33 is formed in the central portion of the first surface 31 of the cup portion 29, and a sprinkler plate is attached to the central portion of the second surface 32 of the cup portion 29. A circular recess 34 is formed as an example of the portion. The raised portion 33 and the concave portion 34 are integrally formed on the front and back sides, and the central portion of the second surface 32 is recessed in a circular shape to form the concave portion 34, whereby the circular raised portion 33 is formed in the central portion of the first surface 31. To.

A positioning recess 35 constituting the positioning portion is formed in the central portion of the raised portion 33, and a circular convex portion 36 is formed in the central portion of the concave portion 34. The positioning recess 35 and the convex portion 36 are integrally formed on the front and back sides, and the positioning recess 35 is formed in the central portion of the raised portion 33 by raising the central portion of the concave portion 34 in a circular shape to form the convex portion 36. The tube portion 30 is formed on the first surface 31, the tip portion 30a is connected to the raised portion 33, and the base end portion 30b projects radially outward from the peripheral edge of the cup portion 29. The inside of the pipe portion 30 communicates with the inside of the recess 34. A female screw portion 37 is formed on the inner surface of the recess 34.

The base end portion 30b of the pipe portion 30 has a cylindrical shape, and a substantially rectangular plate-shaped flange 38 extending on both sides in the width direction X is provided at the end portion on the peripheral surface of the base end portion 30b on the cup portion 29 side. ing. Holes 39 are formed so as to form a pair on both sides of the flange 38 in the width direction X sandwiching the base end portion 30b. A pair of bottomed cylindrical hole extension portions 40 extending the pair of holes 39 are formed at positions corresponding to the pair of holes 39 on the surface of the flange 38 on the cup portion 29 side. The pair of hole extension portions 40 connect the flange 38 and the peripheral edge portion of the cup portion 29.

On the end surface of the pipe portion 30 on the base end portion 30b side, a plurality of serrated first meshing protrusions 41 are provided over the entire circumferential direction so as to be evenly spaced in the circumferential direction. An annular groove 42 is formed at the end on the outer peripheral surface of the base end portion 30b on the side of the first meshing projection 41. Insertion holes 43 are formed so as to form a pair between the raised portion 33 on the first surface 31 of the cup portion 29 and the two hole extension portions 40. These pair of insertion holes 43 face each other with the pipe portion 30 sandwiched in the width direction X.

A pair of cross-shaped protrusions 44 are provided on the first surface 31 at a position closer to the tip side than the central portion so as to face each other with the raised portion 33 sandwiched in the width direction X. A hooked portion 45 is formed at the tip end portion on the first surface 31, that is, at the position on the tip end side of the pair of protrusions 44 on the first surface 31, and at the center portion in the width direction X. The hooked portion 45 has a pair of rectangular plate-shaped side walls 46 facing each other in the axial direction of the cup portion 29, and a rectangular plate-shaped bottom wall 47 connecting the base ends of the pair of side walls 46 to each other. The side wall 46 on the first surface 31 side of the pair of side walls 46 is fixed to the first surface 31. The bottom wall 47 and the pair of side walls 46 form a groove 48 extending in the width direction X.

As shown in FIGS. 3 to 5, when the inner head 16 is attached to the outer head 15, the hooked portion 45 is hooked by the hooking portion 22, and the pair of boss portions 20 has a pair of insertion holes 43. Each of them abuts, a pair of protrusions 44 abuts on the pair of abutting portions 21, the positioning recess 35 and the positioning convex portion 19 are unevenly fitted (gap fit), and the pair of holes 39 are each with the pair of holes 28. Opposing, the proximal end portion 30b of the tube portion 30 is inserted into the first opening 27.

Then, the pair of screws 49 are screwed into the pair of boss portions 20 with the pair of screws 49 inserted into the pair of insertion holes 43, and the pair of screws 50 are inserted into the pair of holes 28 to form a pair from the pair of holes 39. By screwing into the hole extension portions 40, the inner head 16 is fixed to the outer head 15 with the inner head 16 accommodated in the outer head 15.

In this case, as shown in FIG. 7, a part of the base end portion 30b of the pipe portion 30 which is a part of the inner head 16 projects from the first opening 27 of the outer head 15 to the outside of the outer head 15. In the present embodiment, a portion of the base end portion 30b of the pipe portion 30 of the inner head 16 protruding from the first opening 27 to the outside of the outer head 15 constitutes the first protruding portion. Therefore, the first condition that a part of the inner head 16 protrudes from the first opening 27 is satisfied.

Further, in the present embodiment, the hooked portion 45 provided at the tip end portion of the cup portion 29 of the inner head 16 and the pair of insertion holes 43 provided at the base end portion of the cup portion 29 of the inner head 16 are used. A fixing portion that can be fixed to the outer head 15 is configured. Then, as described above, when the inner head 16 is attached to the outer head 15, the hooked portion 45 is hooked by the hooking portion 22, and the pair of insertion holes 43 are paired with the boss portion by the pair of screws 49. It is fixed at 20.

As shown in FIGS. 3, 6 and 7, an annular rib 51 that can be fitted externally to the cup portion 29 of the inner head 16 is erected on the inner surface of the sprinkler plate 17. A hole 52 corresponding to the recess 34 of the inner head 16 is formed in the central portion of the sprinkler plate 17 so as to penetrate therethrough. In the region between the rib 51 and the hole 52 in the sprinkler plate 17, a large number of small sprinkler ports 53 for sprinkling hot water are formed.

A bottomed cylindrical inner face 54 for attaching the sprinkler plate 17 to the recess 34 of the inner head 16 can be inserted into the hole 52 of the sprinkler plate 17. On the outer peripheral surface of the inner face 54, a male screw portion 55 that can be screwed with the female screw portion 37 of the recess 34 is formed. Then, the sprinkler plate 17 is attached to the inner head 16 by the inner face 54 by screwing the inner face 54 into the recess 34 with the inner face 54 inserted into the hole 52 of the sprinkler plate 17.

As a result, the opening 56 of the outer head 15 is closed by the sprinkler plate 17. On the bottom wall of the inner face 54, a plurality of sprinkler ports 57 having a diameter slightly larger than that of the sprinkler port 53 are formed. A circular mist plate 59 having a plurality of holes 58 is arranged in the inner face 54.

As shown in FIGS. 2 and 3, the grip portion 12 is abbreviated to be detachably attached to a case 61 having a substantially rectangular opening 60 formed on a side surface thereof and to the case 61 so as to close the opening 60. It is provided with a rectangular plate-shaped cover 62. A circular second opening 63 is formed at the tip of the case 61, and a circular third opening 64 is formed at the base end of the case 61. A pipe member 65 as an example of an inner member slightly longer than the case 61 is housed in the case 61 and is mounted by a substantially U-shaped mounting tool 66.

The pipe member 65 is capable of passing water inside and is divided into two in the longitudinal direction. That is, the pipe member 65 includes a first pipe member 67 arranged on the distal end side in the case 61 and a second pipe member 68 arranged on the proximal end side in the case 61. The tip portion 67a of the first pipe member 67 has a cylindrical shape and is bent toward the head portion 13.

In this case, a part of the tip portion 67a of the first pipe member 67 projects from the second opening 63 to the outside of the case 61. In the present embodiment, a portion of the tip portion 67a of the first pipe member 67 that protrudes from the second opening 63 to the outside of the case 61 constitutes the second protruding portion. Therefore, the second condition that a part of the pipe member 65 protrudes from the second opening 63 is satisfied. A hole forming portion 70 having a pair of holes 69 is provided on the surface of the base end portion 67b of the first pipe member 67 opposite to the cover 62 side.

The tip end portion 68a of the second pipe member 68 is connected to the base end portion 67b of the first pipe member 67 in a communicating state. The base end portion 68b of the second pipe member 68 projects from the third opening 64 to the outside of the case 61. A hose (not shown) for supplying hot water to the shower head 11 is connected to the base end portion 68b of the second pipe member 68. A pair of cylindrical boss portions 71 are formed at the tip of the inner surface of the cover 62 so as to avoid the first pipe member 67. That is, the pair of boss portions 71 are arranged on both sides of the first pipe member 67.

As shown in FIGS. 8 and 9, the tip portion 67a of the first pipe member 67 is inserted into the coil spring 72 and the annular stopper 73, and is inserted into the base end portion 30b of the pipe portion 30 of the inner head 16. It is rotatably inserted. That is, the inner head 16 and the first pipe member 67 are rotatably connected to each other in a communicating state. In this case, the respective axes of the base end portion 30b of the pipe portion 30 of the inner head 16 and the tip end portion 67a of the first pipe member 67 coincide with each other and become the rotation center of the head portion 13 with respect to the grip portion 12. ing.

Further, in this case, on the outer peripheral surface of the tip portion 67a of the first pipe member 67, an O-ring or the like that seals between the outer peripheral surface of the tip portion 67a and the inner peripheral surface of the base end portion 30b so as to be in a watertight state is provided. Two sealing members 110 are attached. In the axial direction of the tip portion 67a, the positions of these two sealing members 110 coincide with the positions of the first opening 27 and the positions of the second opening 63, respectively.

The base end portion 30b of the pipe portion 30 of the inner head 16 is inserted into the case 61 from the second opening 63. That is, the second opening 63 is externally fitted to the base end portion 30b of the pipe portion 30 of the inner head 16. The stopper 73 is engaged with the tip portion 67a of the first pipe member 67 so as to be slidable in the axial direction and non-rotatable in the circumferential direction. On the surface of the stopper 73 on the base end portion 30b side of the pipe portion 30, a plurality of sawtooth shapes that can be meshed with a plurality of sawtooth-shaped first meshing protrusions 41 provided on the end surface of the pipe portion 30 on the proximal end portion 30b side. The second meshing protrusions 74 are provided over the entire circumferential direction so as to be evenly spaced in the circumferential direction.

The coil spring 72 always urges the stopper 73 toward the base end portion 30b side of the pipe portion 30. Therefore, the plurality of second meshing protrusions 74 of the stopper 73 mesh with the plurality of first meshing protrusions 41 of the base end portion 30b of the pipe portion 30, respectively. A washer 75 for lubrication is arranged between the outer head 15 and the case 61 so as to be fitted onto the base end portion 30b of the pipe portion 30.

An E-ring 76 for preventing the base end portion 30b of the pipe portion 30 from coming out of the second opening 63 of the case 61 is fitted in the groove 42 of the base end portion 30b of the pipe portion 30 located in the case 61. It has been combined. A washer 77 for lubrication is arranged between the E-ring 76 and the second opening 63. Then, when the head portion 13 is rotated with respect to the grip portion 12, the plurality of second meshing protrusions 74 of the stopper 73 and the plurality of first meshing protrusions 41 of the base end portion 30b of the pipe portion 30 get over each other. Move in the circumferential direction.

Then, the stopper 73 is pushed toward the coil spring 72 against the urging force of the coil spring 72, and the meshing state between the plurality of second meshing protrusions 74 and the plurality of first meshing protrusions 41 is temporarily released. Subsequently, by rotating the head portion 13 with respect to the grip portion 12, when the plurality of second meshing protrusions 74 and the plurality of first meshing protrusions 41 get over each other, the urging force of the coil spring 72 causes the plurality of second meshes. The two meshing protrusions 74 and the plurality of first meshing protrusions 41 are in the meshing state again. Therefore, in the shower head 11, the rotation angle of the head portion 13 with respect to the grip portion 12 can be changed in units of one angle of the first meshing protrusion 41 or the second meshing protrusion 74.

As shown in FIGS. 3 and 10, a magnet unit as an example of a suction portion constituting the mounting member is provided on the wall portion of the grip portion 12 on the tip side of the case 61 and opposite to the cover 62 side. A mounting portion 79 is provided to which 14 is mounted by a screw 78. The mounting portion 79 has a substantially rectangular plate-shaped mounting plate 80 forming a part of the wall portion of the case 61, and a regular hexagonal shape which is an example of a non-round shape formed so as to penetrate the mounting plate 80. It includes a pair of through holes 81 and a pair of flange nuts 82 as an example of nuts inserted into the pair of through holes 81, respectively.

The flange nut 82 is preferably made of a material harder than the synthetic resin constituting the grip portion 12. That is, the flange nut 82 is preferably made of, for example, a synthetic resin or metal that is harder than the synthetic resin constituting the grip portion 12. In this embodiment, the flange nut 82 is made of metal. The pair of through holes 81 are arranged so as to be arranged apart from each other in the longitudinal direction of the mounting plate 80.

The flange nut 82 has a disk-shaped flange portion 83 and a nut portion 84 having a regular hexagonal outer shape corresponding to the shape of the through hole 81. That is, the through hole 81 has a shape corresponding to the outer shape of the nut portion 84. The nut portion 84 is inserted into the through hole 81 from the inside of the mounting plate 80 of the case 61.

In this case, since both the through hole 81 and the nut portion 84 have a regular hexagonal shape, which is an example of a non-round shape, the rotation of the nut portion 84 in the through hole 81 is restricted. The maximum width (diameter) of the flange portion 83 is wider (larger) than the maximum width (hole diameter) of the through hole 81. Therefore, the flange portion 83 does not pass through the through hole 81. That is, when the nut portion 84 is inserted into the through hole 81 from the inside of the mounting plate 80 of the case 61, the flange nut 82 is restricted from moving to the outside of the mounting plate 80 by the flange portion 83.

A receiving portion 85 for receiving the flange nut 82 when the flange nut 82 is pressed from the outside to the inside of the mounting plate 80 is projected at a position corresponding to the pair of flange nuts 82 in the first pipe member 67. Has been done. Then, when the nut portion 84 is inserted into the through hole 81 from the inside of the mounting plate 80 of the case 61, the flange nut 82 comes into contact with the receiving portion 85. That is, the flange nut 82 comes into contact with the receiving portion 85 in a state where rotation and movement of the mounting plate 80 to the outside are restricted.

A pair of substantially rectangular holes 86 are formed so as to penetrate at both ends of the mounting plate 80 in the longitudinal direction. A pair of holes 87 are formed so as to penetrate at positions corresponding to the pair of boss portions 71 of the cover 62 on the mounting plate 80. A pair of holes 88 are formed so as to penetrate at a position corresponding to the pair of holes 69 of the hole forming portion 70 in the mounting plate 80.

Then, the cover 62 is fixed to the case 61 by screwing the pair of screws 89 into the pair of boss portions 71 of the cover 62 with the pair of screws 89 inserted into the pair of holes 87 of the mounting plate 80. Further, the first pipe member 67 (pipe member 65) is attached to the case 61 by screwing the pair of screws 90 into the pair of holes 69 of the hole forming portion 70 in a state where the pair of screws 90 are inserted into the pair of holes 88 of the mounting plate 80. It is fixed.

The magnet unit 14 is a pair of a magnet case 91 having a substantially bottomed rectangular box shape, a pair of rectangular plate-shaped magnets 92 housed in the magnet case 91, and a pair of magnets 92 integrally attached to each other. It is equipped with a yoke 93. A pair of substantially rectangular holes 94 are formed so as to penetrate at positions corresponding to the pair of holes 86 of the mounting plate 80 in the magnet case 91. A pair of holes 99 are formed so as to penetrate at positions corresponding to the pair of through holes 81 of the mounting plate 80 in the magnet case 91.

A pair of locking claws 95 are formed on both ends in the longitudinal direction on the back surface of the magnet case 91. The magnet case 91 is locked to the mounting plate 80 by inserting the pair of locking claws 95 into the pair of holes 86 of the mounting plate 80. After the magnet case 91 is locked to the mounting plate 80 by the locking claw 95, the pair of holes 94 is closed by the pair of elastomer caps 96.

A hole 97 is formed to penetrate the central portion of each magnet 92, and a hole 98 corresponding to the hole 97 of the magnet 92 is formed to penetrate the central portion of each yoke 93. The axes of the hole 97 of the magnet 92, the hole 98 of the yoke 93, the hole 99 of the magnet case 91, the through hole 81 of the mounting plate 80, and the flange nut 82 are the same.

Then, a pair of screws 78 are inserted into the holes 97 of the pair of magnets 92, the holes 98 of the pair of yokes 93, the pair of holes 99 of the magnet case 91, and the pair of through holes 81 of the mounting plate 80, respectively. By screwing into the flange nut 82, the magnet unit 14 is attached to the attachment portion 79.

Next, the operation when the inner head 16 is attached to the outer head 15 will be described.
When attaching the inner head 16 to the outer head 15, first, as shown in FIG. 11, the outer head 15 is attached to the hooked portion 45 of the inner head 16 with the inner head 16 slanted with respect to the outer head 15. The beam portion 23 of the hooking portion 22 and the groove 48 of the hooked portion 45 are made to face each other by approaching the hooking portion 22 of the above. Subsequently, when the inner head 16 is pressed toward the hooking portion 22, the beam portion 23 of the hooking portion 22 is inserted into the groove 48 of the hooked portion 45 as shown in FIG.

Subsequently, when the inner head 16 is rotated toward the outer head 15 with the beam portion 23 of the hooking portion 22 as the center of rotation, the inner head 16 is housed in the outer head 15 as shown in FIG. .. At this time, the positioning convex portion 19 of the outer head 15 and the positioning concave portion 35 of the inner head 16 are unevenly fitted (gap-fitted), so that the inner head 16 is positioned with respect to the outer head 15.

Further, at this time, the base end portion 30b of the pipe portion 30 of the inner head 16 is inserted into the first opening portion 27. After that, as shown in FIGS. 3 to 5, the outer head 15 is screwed into the pair of boss portions 20 with the pair of screws 49 inserted into the pair of insertion holes 43, respectively, as shown in FIG. The installation work of the inner head 16 is completed.

Next, the operation when the magnet unit 14 is attached to the attachment portion 79 of the grip portion 12 will be described.
As shown in FIGS. 3 and 10, when the magnet unit 14 is attached to the attachment portion 79 of the grip portion 12, the magnet case 91 is first locked to the attachment plate 80 by the locking claw 95. Subsequently, the pair of magnets 92 and the pair of yokes 93 integrally attached to the pair of magnets 92 are housed in the magnet case 91.

Subsequently, the pair of screws 78 are screwed into the flange nut 82 while being inserted into the holes 97 of the pair of magnets 92, the holes 98 of the pair of yokes 93, and the pair of holes 99 of the magnet case 91. This completes the work of attaching the magnet unit 14 to the attachment portion 79 of the grip portion 12.

At this time, since both the through hole 81 of the mounting plate 80 and the nut portion 84 of the flange nut 82 inserted into the through hole 81 have a regular hexagonal shape, the rotation of the nut portion 84 in the through hole 81 is restricted. Therefore, when the screw 78 is screwed into the flange nut 82, the flange nut 82 is prevented from rotating together. Further, at this time, since the flange nut 82 is supported from the inside by the receiving portion 85 of the first pipe member 67, rattling of the flange nut 82 is suppressed even if the flange nut 82 is pressed from the outside by the screw 78. Therefore, the screw 78 can be easily screwed into the flange nut 82.

Next, the operation of the shower head 11 when used will be described.
As shown in FIGS. 1 and 2, the shower head 11 is used by grasping the grip portion 12 by hand and discharging hot water from the sprinkler ports 53 and 57. At this time, the grip portion 12 exhibits excellent heat insulating properties because it has a so-called double pipe structure in which the pipe member 65 through which hot water is passed is housed in the case 61. Further, since the shower head 11 can rotate the head portion 13 with respect to the grip portion 12, the direction of hot water discharge from the sprinkler ports 53 and 57 can be determined without changing the direction of the hand holding the grip portion 12. You can change it freely.

In this case, as shown in FIG. 8, in the connecting portion between the head portion 13 and the grip portion 12, the tip portion 67a of the first pipe member 67 is rotatably inserted into the base end portion 30b of the pipe portion 30 of the inner head 16. The structure is such that the second opening 63 of the case 61 is fitted and fitted to the base end portion 30b of the pipe portion 30 of the inner head 16. Therefore, since the center of rotation when rotating the head portion 13 with respect to the grip portion 12 is less likely to deviate, the head portion 13 can be rotated accurately and stably with respect to the grip portion 12.

Further, as shown in FIGS. 1 and 2, a magnet unit 14 is provided on the grip portion 12 of the shower head 11. Therefore, the magnet unit 14 can be detachably attracted to, for example, the magnetic wall surface of the shower room by magnetic force, so that a hook or the like for supporting the shower head 11 becomes unnecessary. In this case, the discharge direction of hot water can be adjusted to a desired direction by rotating the head portion 13 with respect to the grip portion 12 according to the suction position of the shower head 11 on the wall surface of the shower room. Therefore, it can be said that the shower head 11 of the present embodiment is very easy to use.

According to the embodiment described in detail above, the following effects are exhibited.
(1) In the shower head 11, the inner head 16 has a plurality of fixing portions that can be fixed to the outer head 15, and the outer head 15 is one of the plurality of fixing portions. It has a hooking portion 22 for hooking the portion 45. According to this configuration, the hooked portion 45 hooked by the hooking portion 22 can be fixed to the outer head 15 without using a screw. Therefore, it is not necessary to secure a thickness for tightening the screw in the portion of the outer head 15 corresponding to the hooked portion 45 to be hooked by the hooking portion 22. Therefore, the degree of freedom in design can be improved.

(2) In the shower head 11, the inner head 16 has fixed portions at the tip end portion and the base end portion, respectively, and the hooked portion 45, which is a fixed portion located at the tip end portion, hooks the outer head 15. A pair of insertion holes 43, which are fixed portions located at the base end portion, are hooked by the stop portion 22, and are fixed to the pair of boss portions 20 of the outer head 15 by a pair of screws 49. According to this configuration, the inner head 16 is strengthened against the outer head 15 by the screw 49 while suppressing the thickness of the portion corresponding to the hooked portion 45 hooked by the hooking portion 22 in the outer head 15. Can be fixed to.

(3) In the shower head 11, the outer head 15 is provided with a positioning convex portion 19, and the inner head 16 is unevenly fitted with the positioning convex portion 19 when the inner head 16 is attached to the outer head 15. A positioning recess 35 for positioning the inner head 16 with respect to 15 is provided. According to this configuration, the inner head 16 can be accurately attached to the outer head 15.

(4) In the shower head 11, the inner head 16 has a recess 34 to which the sprinkler plate 17 is attached. According to this configuration, the sprinkler plate 17 can be easily attached to the inner head 16.

(5) In the shower head 11, the inner head 16 is attached to the outer head 15 so as to partially protrude from the first opening 27, and the grip portion 12 is partially accommodated from the second opening 63. The pipe member 65, which is attached so as to project so as to be housed, is rotatably connected to the pipe member 65 in a communicating state. According to this configuration, since the inner head 16 and the pipe member 65 through which hot water flows are housed in the outer head 15 and the grip portion 12, respectively, heat insulation against hot water can be ensured. In addition, since the inner head 16 is rotatably connected to the pipe member 65, the direction of the head portion 13 with respect to the grip portion 12 can be changed. Therefore, it is possible to improve usability while ensuring heat insulation.

(6) In the shower head 11, the tip portion 67a (second protruding portion) of the first pipe member 67 is rotatably inserted into the base end portion 30b of the pipe portion 30 of the inner head 16, and the pipe portion of the inner head 16 is inserted. A second opening 63 is fitted on the base end portion 30b (first protruding portion) of the 30. According to this configuration, the center of rotation when rotating the inner head 16 with respect to the first pipe member 67 is less likely to be shaken, so that the inner head 16 (head portion 13) is less likely to move with respect to the first pipe member 67 (grip portion 12). ) Can be rotated accurately and stably. In this case, the base end portion 30b of the pipe portion 30 of the inner head 16 protrudes from the first opening 27, and the tip end portion 67a of the first pipe member 67 protrudes from the second opening 63. Therefore, as compared with the case where the base end portion 30b does not protrude from the first opening 27 or the tip end portion 67a does not protrude from the second opening portion 63, the base end portion 30b and the tip end portion 67a in the axial direction are compared with the case where the base end portion 30b does not protrude from the second opening portion 63. The length of the connecting portion between the 30b and the tip portion 67a can be kept short.

(7) In the shower head 11, the grip portion 12 is provided with a magnet unit 14 that can be detachably attracted to a magnetic wall surface such as a shower room by magnetic force. According to this configuration, the shower head 11 can be used by being attracted to an arbitrary position on the wall surface by a magnetic force.

(8) In the shower head 11, the mounting portion 79 provided on the wall portion of the grip portion 12 includes a through hole 81 penetrating the wall portion and a flange nut 82 inserted into the through hole 81, and the flange nut 82 is provided. It is in contact with the pipe member 65 in a state where rotation and outward movement of the wall portion are restricted. According to this configuration, the magnet unit 14 can be attached to the wall portion of the grip portion 12 by screwing the screw 78 into the flange nut 82 of the mounting portion 79, so that the screw 78 is directly screwed into the wall portion. There is no need. Therefore, it is not necessary to increase the thickness of the wall portion of the grip portion 12 to a thickness that allows the screw 78 to be sufficiently screwed. Therefore, the thickness of the wall portion of the grip portion 12 to which the mounting member is attached by the screw 78 can be reduced.

(9) In the shower head 11, the nut has a flange portion 83 and a nut portion 84 having a regular hexagonal outer shape, and the nut portion 84 is inserted into the through hole 81 from the inside of the wall portion of the grip portion 12. The flange nut 82 has a shape of the through hole 81 corresponding to the outer shape of the nut portion 84, and the flange portion 83 has a wider maximum width than the through hole 81. According to this configuration, since the flange portion 83 of the flange nut 82 has a wider maximum width than the through hole 81, it functions as a restricting portion for restricting the movement of the flange nut 82 to the outside of the wall portion of the grip portion 12. That is, by using the flange nut 82 as the nut, it is not necessary to provide a restricting portion for restricting the movement of the nut to the outside of the wall portion of the grip portion 12, so that the wall portion of the grip portion 12 does not need to be provided. The thickness of the nut can be further reduced.

(10) In the shower head 11, the flange nut 82 is placed at a position corresponding to the flange nut 82 in the first pipe member 67 when the flange nut 82 is pressed from the outside to the inside of the wall portion of the grip portion 12. A receiving portion 85 for receiving is provided. According to this configuration, when the screw 78 is screwed into the flange nut 82, it is possible to prevent the flange nut 82 from rattling due to the receiving portion 85. Therefore, the screw 78 can be stably screwed into the flange nut 82.

(11) In the shower head 11, the flange nut 82 into which the screw 78 is screwed is made of a metal harder than the synthetic resin constituting the grip portion 12, so that the thickness of the flange nut 82 (the length of the female screw portion). ) Can be made thin (short) to ensure strength. In addition, since the nut portion 84 of the flange nut 82 is accommodated (freely fitted) in the through hole 81 having the same depth as the thickness of the nut portion 84, the thickness of the flange nut 82 becomes the thickness of the mounting portion 79. ing. Therefore, the thickness of the mounting portion 79 provided on the wall portion of the grip portion 12 can be made thinner.

(Change example)
The above embodiment may be changed as follows.
As shown in FIG. 15, in the mounting portion 79, the through hole 81 is changed to the stepped hole 100, and the flange nut 82 is inserted into the stepped hole 100 in a non-rotatable normal hexagon nut without a flange portion. It may be changed to 101.

As shown in FIG. 16, in the mounting portion 79, even if the through hole 81 is changed to the stepped hole 102 and the flange nut 82 is changed to the hexagonal stepped nut 103 that is non-rotatably inserted into the stepped hole 102. good. In this way, the hexagon stepped nut 103 has a longer thread groove distance than the hexagon nut 101 described above, so that a screwing distance with the screw 78 (see FIG. 10) can be obtained.

The inner head 16 may be provided with two or more fixing portions, and the outer head 15 may be provided with two or more hooking portions capable of hooking each of the two or more fixing portions. In this case, the inner head 16 may be attached to the outer head 15 by hooking all the fixed portions by the hooking portions. That is, the inner head 16 may be attached to the outer head 15 without using any screws.

The positions of the hooked portion 45 and the pair of insertion holes 43 in the inner head 16 may be exchanged, and the positions of the hooked portion 22 and the pair of boss portions 20 in the outer head 15 may be exchanged.

The outer head 15 may be provided with a concave portion as a positioning portion instead of the positioning convex portion 19, and the inner head 16 may be provided with a convex portion that can be fitted with the concave portion as a positioning portion instead of the positioning concave portion 35.

The positioning protrusion 19 of the outer head 15 and the positioning recess 35 of the inner head 16 may be omitted.
The recess 34 as the sprinkler plate mounting portion in the inner head 16 may be omitted. In this case, the sprinkler plate 17 is attached to the outer head 15.

-The grip portion 12 may be provided with a suction cup as a suction portion instead of the magnet unit 14.
The magnet unit 14 in the grip portion 12 may be omitted.

The base end portion 30b (first protruding portion) of the pipe portion 30 of the inner head 16 is rotatably inserted into the tip portion 67a (second protruding portion) of the first pipe member 67, and the tip of the first pipe member 67 is inserted. The first opening 27 may be fitted onto the portion 67a (second protruding portion).

The receiving portion 85 in the first pipe member 67 may be omitted.
-The mounting member does not necessarily have to be a suction portion, and may be configured by, for example, a decorative plate.

The inner member does not necessarily have to be the pipe member 65, and may be a component other than the pipe member 65 fixed in the case 61 of the grip portion 12.
-One of the first condition and the second condition may not be satisfied.

11 ... Shower head, 12 ... Grip part, 14 ... Magnet unit as an example of the suction part constituting the mounting member, 65 ... Pipe member as an example of the inner member, 78 ... Screw, 79 ... Mounting part, 81 ... Through hole , 82 ... Flange nut as an example of a nut, 83 ... Flange portion, 84 ... Nut portion, 85 ... Receiving portion.

Claims (3)

Grip part and
With the inner member installed in the grip part,
A mounting portion provided on the wall portion of the grip portion and to which a mounting member is mounted by a screw, and a mounting portion.
It is a shower head equipped with
The mounting part is
A through hole penetrating the wall and
The nut inserted into the through hole and
Equipped with
The shower head is characterized in that the nut is in contact with the inner member in a state where rotation and movement of the wall portion to the outside are restricted. The nut is a flange nut having a flange portion and a nut portion having a non-circular outer shape, and the nut portion is inserted into the through hole from the inside of the wall portion.
The through hole has a shape corresponding to the outer shape of the nut portion.
The shower head according to claim 1, wherein the flange portion has a maximum width wider than that of the through hole. The claim is characterized in that, at a position corresponding to the nut in the inner member, a receiving portion for receiving the nut when the nut is pressed from the outside to the inside of the wall portion is provided. 1 or the shower head according to claim 2.

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