JP2540737Y2 - Massage shower head - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a massage shower head for discharging massage shower water.

[0002]

2. Description of the Related Art Conventionally, if an impeller is rotatably provided in a shower head for discharging massage shower water, a contact area with other members of the impeller becomes large, and rotation of the impeller is reduced. There was a problem that it was incomplete and good massage shower water could not be obtained.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide a massage shower head which can rotate an impeller inside well. The gist of the invention is that a water chamber for massage spouting is formed on the sprinkler plate covered by the shower head, and an impeller is rotatably provided in the water chamber, and a contact resistance with the impeller is reduced. A protruding rib protruding toward the impeller is formed on the ceiling surface of the water chamber in order to suppress it.

[0004]

Since the projecting rib protruding toward the impeller is formed on the ceiling surface of the water chamber formed on the water spray plate, the impeller is attached to the projecting rib when the impeller rotates at a high speed and floats. However, the contact area is extremely small, so that the rotation of the impeller is not hindered and the impeller maintains a good rotation state.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional configuration diagram of the vicinity of the main body of the shower head. The shower head 1 according to the present embodiment includes the main body 4, the seat plate 14, the switching valve 26, the set screw 80, the impeller 56, the cap 70, and the water spray plate 40. 4 will be described with reference to FIG.

FIG. 2 is a perspective view, partly broken away, with the main body 4 facing upward. The main body 4 is formed of a bottomed cylinder made of ABS resin or the like. And a water chamber 5 communicating with the water supply passage 3 is formed inside the handle part 2. A plurality of ribs 6, 6, and 6 are provided upright in the form of a boss. A boss 7 is integrally formed at the center of the bottom surface side, and a female screw 8 is screwed on the inner periphery of the boss 7. It is engraved. On the side of the boss 7, a cylindrical fitting tube 9 is integrally formed at a position eccentric from the center, and this fitting cylindrical portion 9 communicates with the water supply passage 3 and a water chamber. 5 has been communicated. Further, a step portion 10 is formed in a step shape on the outer periphery of the opening end side of the main body portion 4, and a packing groove 11 is formed in a concave shape inside the step portion 10.

FIG. 3 is a perspective view of the upper surface of the sheet plate 14, and FIG. 4 is a perspective view of the lower surface of the sheet plate 14. The sheet plate 14 is formed in a dish shape with an opening on the lower side, a flange 16 is integrally formed downward on the outer periphery of the plate portion 15, and a center hole 17 is formed in the center of the plate portion 15. In addition, an inner peripheral ring portion 18 is formed outside the center hole 17 so as to protrude upward. Similarly, an outer peripheral ring portion 19 is integrally formed on the outer peripheral side so as to protrude upward.
Further, a water passage hole 20 is formed in a penetrating manner on a lateral side eccentric from the center hole 17, and the outer periphery of the water passage hole 20 is a boss 21 projecting upward. Plate part 1
5, a pair of circulation holes 22, 22 are formed at opposing positions. Further, a pair of node grooves 23, 23 are formed in a concave shape at opposing positions on the inner periphery of the flange portion 16.

The seat plate 14 has the inner peripheral ring portion 18 fitted to the outer periphery of the lower end of the boss portion 7 of the main body portion 4, and is inserted into the fitting cylindrical portion 9 of the main body portion 4 via an O-ring 84. The boss portion 21 is fitted in a watertight manner and can be fixedly attached to the main body portion 4.
9 is in contact with the rib 6 of the main body 4, and the flange 16 is fixed in contact with the inner peripheral surface of the water chamber 5. Since the boss portion 21 of the water passage hole 20 is located eccentrically from the center, the boss portion 21 is prevented from rotating when the boss portion 21 is fitted to the fitting cylinder 9 of the main body 4 in a watertight manner. The sheet plate 14 is fixed to the main body 4 in a watertight manner while being prevented from rotating.

Next, FIG. 5 is a perspective view of the switching valve 26 as viewed from the upper surface side. The switching valve 26 is formed in a bowl shape with an opening at the bottom, and is integrally formed on the outer periphery of the bottom portion 27 downward integrally. Part 2
An O-ring interior hole 29 is formed in the center of the bottom surface portion 27. An opening 33 is formed in a penetrating shape at an eccentric position on the side of the O-ring interior hole 29, and the outer periphery of the opening 33 is a convex portion 34 rising upward, and the outer periphery is a concave shape. The outer periphery of the O-ring groove 36 is a convex portion 35 projecting upward. In addition, an inclined surface 32 inclined downward is formed on the bottom surface 27 opposite to the opening 33. Further, the opening 33 on the bottom surface 27 side of the outer peripheral portion 28
A pair of elastic plates 30, 30 are integrally formed so as to protrude outward at a position perpendicular to the inclined surface 32, and further project outward at the center position of each of the elastic plates 30, 30. The detent protrusions 31 are integrally formed.

As shown in FIG. 1, a pair of projecting fitting portions 37 are formed on the inner peripheral surface of the switching valve 26 at positions facing each other. The switching valve 26 is connected to the seat plate 1.
4 is attached to the seat plate 14 so as to be able to rotate and slide. The switching valves 26 are biased at the center of the seat plate 14 by the elastic forces of the elastic plates 30, 31.

The opening 33 has the same diameter at a position where the opening 33 is aligned with the water passage hole 20 of the seat plate 14. An O-ring 85 is fitted into the O-ring groove 36 so that the opening 33 and the seat plate 14 The water holes 20 can communicate with each other in a watertight manner. Since the projections 34 and 35 are formed on the outer periphery of the opening 33, the projections 34 and 3 are formed.
5 is in contact with the plate portion 15 of the seat plate 14 so that the contact area between the switching valve 26 and the seat plate 14 is as small as possible. An O-ring 83 is fitted inside the O-ring interior hole 29. The O-ring interior hole 29 has a larger inner diameter than the center hole 17 of the seat plate 14 by the O-ring 83. Is formed.

Next, FIG. 7 is a perspective view of the sprinkling plate 40 from the lower surface side, and FIG. 8 is a perspective view of the sprinkling plate 40 from the upper surface side. The water sprinkling plate 40 is formed in a dish-like shape whose upper side is opened by a surface plate portion 41 and an outer peripheral portion 42 of the outer periphery. The surface plate portion 41 has three rows of water sprinkling holes 45, 45,
A pair of handle portions 44, 44 are integrally formed at the outer periphery of the outer peripheral portion 42 at positions facing each other. A boss portion 43 is integrally formed in the center of the surface plate portion 41 so as to rise upward. The boss portion 43 has a cylindrical shape, and has a concave water chamber 53 formed therein. A screw portion 50 made of a female screw is formed on the peripheral surface. Eight inflow ports 49, 49, 49 are formed in the screw portion 50 at regular intervals in a penetrating manner, and each of the inflow ports 49, 49, 49 spirally enters the concave water chamber 53. It is formed in a substantially rhombic shape for flowing water. Each of the inflow ports 49 communicates with each of the flowing water channels 51, and a pair of fitting grooves 52, 52 are provided outside the flowing water channel 51 at opposing positions.
Are formed, and each fitting groove 52 is provided with the switching valve 26.
The switching valve 26 and the water sprinkling plate 40 are integrated with each other by fitting into a pair of fitting portions 37, 37 protruding from the inner periphery of the switch. When the fitting portion 37 is fitted in the fitting groove 52, the water passage 51 is formed inside the fitting portion 37. The inside of each of the inlets 49 is an annular rib 48 protruding downward, and the water flowing into the concave water chamber 53 from each of the inlets 49 by the annular rib 48 is provided inside the concave water chamber 53. The impeller 56 comes into contact with the side surface of the impeller 56 so that the impeller 56 can be satisfactorily rotated without being pressed downward. Further, a protruding rib 47 (see FIG. 1) is formed on the outer periphery of the insertion hole 46 inside the annular rib 48 so as to protrude downward, and the protruding rib 47 causes the blade when the impeller 56 rises. The contact area with the vehicle 56 is configured to be small.

FIG. 6 is a perspective view of an impeller 56, which is provided with eight blades 57, 57, 57 which are inclined at equal intervals.
A shaft hole 58 is formed at the center, and the outer periphery of the shaft hole 58 is an annular rib 59 protruding downward. Also, 4
Cover plate 6 in a state of covering the blades 57, 57, 57, 57.
0 is integrally formed.

Next, FIG. 9 is a perspective view of the cap 70 from the lower surface side, and FIG. 10 is a perspective view of the cap 70 from the upper surface side. The cap 70 is attached to the sprinkling plate 40
Is attached to the concave water chamber 53 in a lid shape,
A screw portion 77 that can be screwed with the screw portion 50 of the water spray plate 40 is formed on the outer periphery, and an O-ring groove 71 for fitting an O-ring 87 is formed below the screw portion 77. . Also, a shaft portion 72 is integrally formed in the center of the upper surface in a protruding manner, and the base of the shaft portion 72 is a thick portion 75 bulging upward, and the thick portions 75 spread at equal intervals in three directions. The thick portion 75 has four guide holes 76,
76, 76, 76 are formed, and the lower end of each guide hole 76 is a fountain hole 74, 74, 74, 74.
A slot 73 is formed on the lower surface side of the shaft portion 72 at the center of the lower surface of the cap 70 so that a driver or the like can be inserted. Since the base of the shaft 72 is thick, the slot 73 can be formed considerably deeply. or,
The shaft portion 72 is loosely inserted into the shaft hole 58 of the impeller 56. When the shaft portion 72 is loosely inserted, an annular rib 59 is formed so as to protrude from the impeller 56. With the contact area reduced, the impeller 56 is rotatably mounted on the outer periphery of the shaft 72.

In FIG. 1, reference numeral 80 denotes a set screw, and a head 81 of the set screw 80 is fitted inside the projecting rib 47 of the water sprinkling plate 40. A corrugated washer 82 is interposed between the head 81 and the watering plate 40. The corrugated washer 82 has a wavy up and down side shape, reduces the contact area between the head 81 and the sprinkling plate 40, and is attached to the main body 4 side so that the sprinkling plate 40 can be freely rotated. Things. The tip of the set screw 80 is screwed into the female screw 8 of the boss 7 of the main body 4.
Through the O-ring interior hole 29 of the switching valve 26. By tightening the set screw 80, the switching valve 26 can be attached to the seat plate 14 side together with the water spray plate 40 so as to be rotatable in a pressing manner via the corrugated washer 82. In the drawings, reference numerals 84, 86, and 87 denote O-rings for ensuring watertightness between the respective members. Reference numeral 88 denotes a U-shaped packing.

As described above, the switching valve 26 and the water spray plate 40 are rotatably mounted on the seat plate 14 via the set screw 80 so as to be pressed, and in this state, the concave water chamber 53 of the water spray plate 40 is provided.
The impeller 56 is mounted inside, and the cap 70 is further covered outside to complete the mounting. The watering plate 40 is rotated clockwise or in the same plane with respect to the main body 4 via the handle portions 44, 44. When the sprinkling plate 40 is rotated, the switching valve 26 integrated by the key connection is also rotated at the same time as the sprinkling plate 40 is rotated.
Can be engaged with the joint grooves 23, 23 and locked with a sense of moderation every 180 °. When the opening 33 of the switching valve 26 is aligned with the water hole 20 of the seat plate 14, the hot and cold water introduced from the water supply passage 3 passes through the water passage hole 20 and the opening 33 from the fitting cylinder 9 and flows through the water passage 51. , And flows into the concave water chamber 53 from each inlet 49, and the flowed hot water contacts the side surface of the impeller 56 to rotate the impeller 56. Since the guide holes 76, 76, 76 of the cap 70 are opened and closed intermittently by the rotation of the impeller 56, shower water for massage is spouted from the fountain holes 74 of the cap 70 intermittently, and a massage shower effect is obtained. be able to.

On the other hand, from this state, the sprinkling plate 40 is rotated 180 ° clockwise or counterclockwise,
The inclined surface 32 of the switching valve 26 is aligned with the water hole 20 of the seat plate 14, and in this state, the hot and cold water flows smoothly from the water hole 20 along the inclined surface 32 into the water chamber 5 outside the switching valve 26. Water flows from the water chamber 5 into the watering holes 4 of the watering plate 40.
5 and is discharged to the outside as normal shower water.

Therefore, in the shower head 1 of the present embodiment, the sprinkler plate 40 is continuously rotated clockwise or counterclockwise by 180 ° in the same plane, whereby 180 °
The normal shower water and the shower water for massage can be continuously switched every time, and the operation is extremely easy.
The sprinkling plate 40 can be operated with a good moderation feeling by engaging the inside. Further, the pressing force of the switching valve 26 against the seat plate 14 and the rotation are obtained by the corrugated washer 82.

A concave portion 2a is formed in an upwardly concave shape on the lower surface side of the base portion of the grip portion 2 with respect to the main body portion 4, and the concave portion 2a is watered by hanging a finger or the like on the handle portion 44. It is formed to improve operability so as not to be in the way when rotating the plate 40. By forming the concave portion 2a in this way, the usability is improved and the overall shape is reduced to a compact shape. can do.

The circulation holes 22 are formed to improve the circulation of water in the water chambers 5 on the upper and lower sides of the sheet plate 14. Without dead water inside, the water in the water chamber 5 is circulated well, and sanitary water is jetted out as shower water.

As described above, when the impeller 56 rotates in the concave water chamber 53, the annular rib 59 of the impeller 56 comes into contact with the cap 70, and the contact area is small.
The rotation of 6 is performed smoothly. The same effect can be obtained even if the annular rib 59 is formed on the cap 70 side. Further, even when the impeller 56 rises due to high-speed rotation, the protruding ribs 47 are formed. Therefore, the contact area between the protruding ribs 47 and the impeller 56 is reduced, and the rotation of the impeller 56 is smooth. Done in
Further, since the annular rib 48 is formed, the concave water chamber 53 is formed.
The water flow that flows into the inside can satisfactorily abut against the side surface of the impeller 56 and can be rotated without pressing the impeller 56 downward, and further, each inlet 49 is spirally formed in the concave water chamber 53. Since the shape is such that the water flow can be supplied, the rotation of the impeller 56 is further smoothed.

[0022]

[Effect of the invention] The massage shower head of the invention is
A water chamber for massage water spouting is formed on the sprinkler plate covered by the shower head, and an impeller is rotatably provided in the water chamber, and the impeller is provided to suppress contact resistance with the impeller. Protrusion ribs that protrude toward the impeller are formed on the ceiling surface of the water chamber, so that when the impeller rotates at a high speed in the water chamber, the protruding ribs are generated when the impeller rises. The impeller contacts the impeller and the contact area is extremely small, so that the rotation of the impeller is not hindered and the impeller can maintain a smooth rotation and discharge good massage shower water to the outside.

[Brief description of the drawings]

FIG. 1 is a cross-sectional configuration diagram around a main body of a shower head.

FIG. 2 is a partially cutaway perspective view showing a state in which a main body is directed upward.

FIG. 3 is a perspective view illustrating a configuration of a seat plate viewed from an upper surface side;

FIG. 4 is a perspective view of the seat plate as viewed from below.

FIG. 5 is a perspective configuration diagram of an upper surface side of a switching valve.

FIG. 6 is a perspective view of the impeller seen from the lower surface side.

FIG. 7 is a perspective view of the sprinkler plate viewed from the lower surface side.

FIG. 8 is a perspective view of the sprinkler plate as viewed from the top.

FIG. 9 is a perspective view of the cap viewed from the lower surface side.

FIG. 10 is a perspective view of the cap viewed from the top.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Shower head 2 Handle part 2a Depression 3 Water supply channel 4 Main body part 5 Water chamber 7 Boss part 9 Fitting cylinder part 14 Sheet plate 17 Center hole 18 Inner peripheral ring part 19 Outer peripheral ring part 20 Water passage hole 22 Circulation hole 23 Node Groove 26 Switching valve 29 O-ring interior hole 30 Elastic plate portion 31 Moderation projection 32 Inclined surface 33 Opening 34,35 Convex portion 36 O-ring groove 40 Watering plate 43 Boss 44 Handle portion 45 Watering hole 46 Insertion hole 47 Projection rib 48 Ring Rib 49 Inflow port 50 Screw part 51 Flow channel 52 Fitting groove 53 Concave water chamber 56 Impeller 57 Blade 58 Shaft hole 59 Annular rib 70 Cap 72 Shaft part 73 Slot groove 74 Fountain hole 75 Thick part 76 Guide hole 80 Stop Screw 81 Head 82 Corrugated washer 83, 84, 85, 86, 87 O-ring 88 U-shaped packing

Claims (1)

(57) [Scope of request for utility model registration] 1. A water chamber for massage water discharge is formed on a water spray plate covered by a shower head, and an impeller is rotatably provided in the water chamber, and a contact resistance with the impeller is provided. A massage shower head, wherein a projection rib protruding toward the impeller is formed on a ceiling surface of the water chamber in order to suppress the water pressure.