JPH05115520A - Massage shower head - Google Patents

Abstract

PURPOSE:To smoothen the revolution of a blade wheel which is internally installed inside for obtaining the massage shower water. CONSTITUTION:On a water spraying plate 40 which is installed covering the discharge edge side of a shower head 1, a water chamber 53 for massage with discharged water is formed, and in the water chamber 53, a blade wheel 56 is installed in turnable manner, and on the inner periphery of the water chamber 53, a plurality of inflow ports 49 are formed in annular form and an annular rib 48 is projectingly installed inside the inflow port 49.

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 capable of ejecting massage shower water.

[0002]

2. Description of the Related Art Conventionally, when the massage shower water is discharged from the shower head, the internal mechanism becomes complicated, and in the structure in which the impeller is installed inside, the impeller is pressed down and the impeller is rotated. There was a problem that it became unstable.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems of the prior art, and does not provide a shower head capable of satisfactorily rotating an impeller and ejecting massage shower water. The first gist of the present invention is to provide a water chamber for massage water discharge in a water spray plate which is covered on the discharge end side of a shower head, and in which the impeller is rotatably installed. In addition, a plurality of inflow ports are formed annularly on the inner circumference of the water chamber in order to apply swirling running water to the impeller. The second gist is that an annular rib is provided in the axial direction of the water spray plate inside each of the inlets so that the flowing water flowing into the water chamber is applied to the side surface of the impeller. is there.

[0004]

In the first aspect, a plurality of inlets are formed in an annular shape on the inner circumference of the water chamber formed in the sprinkler plate, and the flowing water flows into the water chamber spirally from each of the inlets. The impeller can be rotated well by the swirling running water. Further, in the second aspect, since the annular rib projects in the axial direction inside the inlet in the water chamber, the flowing water flowing into the water chamber flows in the axial direction by the rib.
Since the running water comes into contact with the impeller from the side surface side of the internal impeller, the impeller is not pressed down and is effectively rotated by the running water.

[0005]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional configuration diagram near the main body of the shower head. The shower head 1 of this example includes a main body portion 4, a seat plate 14, a switching valve 26, a set screw 80, an impeller 56, a cap 70, and a sprinkler plate 40. The configuration of No. 4 will be described with reference to FIG.

FIG. 2 is a perspective view in which a part of the main body 4 is cut away with the main body 4 facing upward. The main body 4 is made of ABS resin or the like in a cylindrical shape with a bottom, and the water supply passage 3 is formed inside. It is integrally formed at the tip of the handgrip part 2 that can be held by the inside, and has a water chamber 5 that communicates with the water supply passage 3 inside, and the inner circumference of the water chamber 5 Several ribs 6, 6 and 6 are erected on the bottom of the boss, a boss portion 7 is integrally formed at the center of the bottom side, and a female screw 8 is screwed on the inner circumference of the boss portion 7. It is carved. Further, on the side of the boss portion 7, a fitting cylindrical portion 9 is integrally formed in a cylindrical shape at a position eccentric from the center. The fitting cylindrical portion 9 is communicated with the water supply passage 3 and the water chamber. It has been communicated with 5. Further, a step portion 10 is formed in a step shape on the outer periphery of the main body portion 4 on the opening end side, and a packing groove 11 is formed in a recess shape inside thereof.

Next, FIG. 3 is a perspective view of the upper side of the seat plate 14, and FIG. 4 is a perspective view of the lower side of the seat plate 14. The seat plate 14 is formed in a dish shape having an open lower side, a flange 16 is integrally formed downward on the outer periphery of the plate portion 15, and a central hole 17 is formed at 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 project upward. Similarly, an outer peripheral ring portion 19 is integrally formed on the outer peripheral side so as to project upward.
Further, a water passage hole 20 is formed in a penetrating manner on the lateral side eccentric from the center hole 17, and the outer periphery of the water passage hole 20 is a boss portion 21 protruding upward. Also, the plate part 1
5, a pair of circulation holes 22, 22 are formed at opposite positions. In addition, a pair of node grooves 23, 23 are formed in a recessed shape at opposite positions on the inner circumference of the collar portion 16.

In this seat plate 14, the inner peripheral ring portion 18 is fitted to the outer periphery of the lower end of the boss portion 7 of the main body portion 4, and the O-ring 84 is provided in the fitting cylindrical portion 9 of the main body portion 4. The boss portion 21 can be fitted in a watertight manner and fixedly attached to the main body portion 4. At this time, the outer peripheral ring portion 1
9 is brought into contact with the rib 6 of the main body portion 4, and the collar portion 16 is fixed to the inner peripheral surface of the water chamber 5 in an abutting manner. Since the boss portion 21 of the water passage hole 20 is eccentric from the center, the boss portion 21 in the watertightly fitted state with the fitting tubular portion 9 of the main body portion 4 is in a rotation-stopped state. The seat 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 from the upper side of the switching valve 26. The switching valve 26 is formed in a bowl shape having an opening at the lower side, and the outer circumference of the bottom surface portion 27 is integrally downward. Part 2
8 is formed, and an O-ring interior hole 29 is formed at the center of the bottom surface portion 27. Further, an opening 33 is formed in a penetrating position at a laterally eccentric position of the O-ring interior hole 29, and the outer periphery of the opening 33 is a convex portion 34 that rises upward, and the outer periphery thereof has a concave shape. O-ring groove 36, and the outer periphery thereof is a convex portion 35 protruding upward. Further, an inclined surface 32 that is inclined downward is formed on the bottom surface portion 27 on the side opposite to the opening 33. Further, the opening 33 on the bottom surface 27 side of the outer peripheral portion 28.
Further, a pair of elastic plate portions 30, 30 is integrally formed in a position orthogonal to the inclined surface 32 so as to project outward, and the elastic plate portions 30, 30 further project outward at the center position. The moderation protrusions 31, 31 are integrally formed.

As shown in FIG. 1, a pair of protruding fitting portions 37 are formed on the inner peripheral surface of the switching valve 26 so as to be opposed to each other. The switching valve 26 is the seat plate 1
4 is attached to the seat plate 14 so as to be rotatable and slidable. The switching valve 26 is urgedly installed at the central position of the seat plate 14 due to the elastic force of the elastic plate portions 30 and 30 when the switching plates 26 are engaged with each other.

The opening 33 is formed with the same diameter at a position aligned with the water passage hole 20 of the seat plate 14, and an O-ring 85 is fitted into the O-ring groove 36 so that the opening 33 and the seat plate 14 are fitted together. The water holes 20 can communicate in a watertight manner. Since the protrusions 34 and 35 are formed on the outer periphery of the opening 33, the protrusions 34 and 3 are formed.
5 is in contact with the plate portion 15 of the seat plate 14, and 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 inner hole 29, and the inner diameter of the O-ring inner hole 29 is larger than that of the central hole 17 of the seat plate 14 by the O-ring 83. Has been formed.

Next, FIG. 7 shows a perspective view from the lower surface side of the water spray plate 40, and FIG. 8 shows a perspective view from the upper surface side of the water spray plate 40. The water sprinkling plate 40 is formed in a dish shape having an upper opening by a surface plate part 41 and an outer peripheral part 42 of the outer circumference thereof. The surface plate part 41 has three rows of water sprinkling holes 45, 45, 45.
45 is formed by punching, and a pair of handle portions 44, 44 are integrally formed on the outer periphery of the outer peripheral portion 42 so as to project at opposite positions. In addition, a boss portion 43 is integrally formed in the central portion of the surface plate portion 41 so as to rise upward, and the boss portion 43 has a tubular shape, and a concave water chamber 53 is formed therein. A screw portion 50 formed of a female screw is formed on the peripheral surface. Further, eight inflow ports 49, 49, 49 are formed at equal intervals inside the screw part 50 in a penetrating manner, and these inflow ports 49, 49, 49 are spirally formed in the concave water chamber 53. It is formed in a substantially rhombic shape to allow water to flow in. Each of the inflow ports 49 communicates with each of the flowing water channels 51, and on the outside of the flowing water channels 51, a pair of fitting grooves 52, 52 are provided at opposing positions.
Is formed, and each of the fitting grooves 52 is formed in the switching valve 26.
The switching valve 26 and the sprinkler plate 40 are integrated by fitting in a pair of fitting portions 37, 37 protruding from the inner circumference of the. When the fitting portion 37 is fitted in the fitting groove 52, the flowing water passage 51 is formed inside the fitting portion 37. Further, the inside of each of the inlets 49 is an annular rib 48 protruding downward, and the water flowing into each of the concave water chambers 53 from each of the inlets 49 by the annular rib 48 is internally provided in the concave water chamber 53. Since the impeller 56 comes into contact with the side surface of the impeller 56, the impeller 56 can be rotated favorably 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 project downward, and the protruding rib 47 causes the blade when the impeller 56 is lifted up. The contact area with the vehicle 56 is reduced.

FIG. 6 is a perspective view of the impeller 56, which is provided with eight blades 57, 57, 57 inclined at equal intervals.
A shaft hole 58 is formed in the center, and the outer periphery of the shaft hole 58 is an annular rib 59 protruding downward. Also, 4 on the bottom side
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 from the lower surface side of the cap 70, and FIG. 10 is a perspective view from the upper surface side of the cap 70. This cap 70 corresponds to the sprinkler plate 40.
It is attached to the concave water chamber 53 of
A screw portion 77 that can be screwed into 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 in the lower portion of the screw portion 77. .. Further, a shaft portion 72 is integrally formed in a protruding shape at the central portion of the upper surface, and the base portion of the shaft portion 72 is a thick portion 75 that swells upward, and the thick portion 75 spreads in three directions at equal intervals. 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 in the central portion of the lower surface of the cap 70 so that a driver or the like can be inserted therein. Since the base portion of the shaft portion 72 is thick, the slot groove 73 can be formed considerably deep. or,
The shaft portion 72 is loosely inserted into the shaft hole 58 of the impeller 56. When the impeller 56 is loosely inserted, an annular rib 59 is formed so as to project. The impeller 56 is rotatably attached to the outer circumference of the shaft portion 72 in a state where the impeller 56 is in contact with the impeller 56 and the contact area is reduced.

In FIG. 1, reference numeral 80 is a set screw, and the head 81 of the set screw 80 is fitted inside the protruding rib 47 of the water spray plate 40. At the time of this fitting, the set screw 80 is inserted. A corrugated washer 82 is interposed between the head 81 and the sprinkler plate 40. This corrugated washer 82 has a wavy upper and lower side surface shape, reduces a contact area between the head 81 and the water spray plate 40, and is attached to the main body portion 4 side in a state in which the water spray plate 40 can be freely rotated. It is a thing. The tip of the set screw 80 is screwed into the female screw 8 of the boss portion 7 of the main body portion 4, and the set screw 80 is the center hole 17 of the seat plate 14.
While passing through the O-ring interior hole 29 of the switching valve 26. By tightening the set screw 80, the switching valve 26 together with the water spray plate 40 can be rotatably attached to the seat plate 14 side in a pressing manner via the corrugated washer 82. Incidentally, reference numerals 84, 86 and 87 in the figure are O-rings for ensuring the water tightness between the respective members. Further, 88 is a U-shaped packing.

In this way, the switching valve 26 and the sprinkler plate 40 are rotatably attached to the seat plate 14 side via the set screw 80, and in this state, the concave water chamber 53 of the sprinkler plate 40 is attached.
The impeller 56 is assembled inside, and the cap 70 is covered on the outside to complete the assembly. The water spray plate 40 is clockwise or in the same plane with the main body 4 via the handle parts 44, 44. It can be rotated counterclockwise, and at the same time by rotating the water sprinkling plate 40, the switching valve 26 integrated by key connection also rotates, and the moderation protrusions 31, 31 are rotated.
Can be engaged with the node grooves 23, 23 and can be locked with a feeling of moderation at every 180 °. In a state where the opening 33 of the switching valve 26 is aligned with the water passage hole 20 of the seat plate 14, the hot water introduced from the water supply passage 3 passes through the water passage hole 20 and the opening 33 from the fitting tubular portion 9 and the flowing water passage 51. Passing through each of the inlets 49 and flowing into the concave water chamber 53, the inflowing hot and cold 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 intermittently opened / closed by the rotation of the impeller 56, shower water for massage is intermittently ejected from the fountain hole 74 of the cap 70 to obtain a massage shower effect. be able to.

On the other hand, from this state, by rotating the sprinkler plate 40 clockwise or counterclockwise by 180 °,
The inclined surface 32 of the switching valve 26 is aligned with the water passage hole 20 of the seat plate 14, and in this state, the hot water is smoothly introduced from the water passage hole 20 along the inclined surface 32 into the water chamber 5 outside the switching valve 26. Water flows in from the water chamber 5 to the water spray holes 4 of the water spray plate 40.
It passes through 5 and is ejected to the outside as normal shower water.

Therefore, in the shower head 1 of this embodiment, the water sprinkling plate 40 is rotated 180 ° continuously in the same plane in the clockwise or counterclockwise direction by 180 °.
The normal shower water and the shower water for massage can be continuously switched every time, and the operation is extremely easy, and the moderation projections 31, 31 are formed in the node grooves 23, 23 at every 180 °.
It is possible to operate the water sprinkling plate 40 by engaging with the inside of the sprinkler plate 40 with a good moderation feeling. Further, the corrugated washer 82 provides the pressing force and rotatability of the switching valve 26 against the seat plate 14.

A concave portion 2a is formed in an upward concave shape on the lower surface side of the base portion of the grip portion 2 with respect to the main body portion 4. The concave portion 2a is sprinkled by hanging a finger or the like on the handle portion 44. It is formed in order to improve the operability so as not to get in the way when the plate 40 is rotated. By forming the recess 2a in this way, the usability becomes good and the overall shape is made compact. can do.

The circulation holes 22 are formed in order to improve the circulation of water in the water chambers 5 on the upper and lower surfaces of the seat plate 14, and the water chambers 5 on the upper surface of the seat plate 14 are formed. The dead water does not occur inside, and the water in the water chamber 5 is circulated well, and hygienic water is ejected as shower water.

Further, as described above, when the impeller 56 rotates in the concave water chamber 53, the annular rib 59 of the impeller 56 contacts the cap 70 and the contact area is small, so that the impeller 5 is small.
The rotation of 6 is performed smoothly. Even if the annular rib 59 is formed on the cap 70 side, the same effect can be obtained. Since the protruding rib 47 is formed even when the impeller 56 is lifted up at a higher speed, the contact area with the impeller 56 is reduced by the protruding rib 47, and the impeller 56 rotates smoothly. To be done.
Further, since the annular rib 48 is formed, the concave water chamber 53
The water flow that flows into the inside can satisfactorily come into contact with the side surface side of the impeller 56 to rotate the impeller 56 without pressing the impeller 56 downward, and further, each inflow port 49 has a spiral shape inside the concave water chamber 53. Since the water flow can be supplied, the impeller 56 can rotate more smoothly.

[0022]

The massage shower head of the present invention is
A water chamber for massage water discharge is formed in a water spray plate covered on the discharge end side of the shower head, and an impeller is rotatably installed in the water chamber, and a swirling running water flows in the impeller. Since a plurality of inflow ports are formed in an annular shape on the inner circumference of the water chamber for applying the water to the impeller installed in the water chamber of the sprinkler plate, the running water is swirled from the plurality of the inflow ports to form a blade. You can get a massage shower water by spinning the car well. Further, on the inside of each of the inlets, an annular rib is provided so as to project in the axial direction of the water spray plate in order to apply the flowing water flowing into the water chamber to the side surface of the impeller.
The running water flowing into the water chamber along the annular rib can contact the side surface of the impeller and rotate the impeller favorably without pressing the impeller.

[Brief description of 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 configuration view from the upper surface side of the seat plate.

FIG. 4 is a perspective configuration view from the lower surface side of the seat plate.

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

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

FIG. 7 is a perspective configuration view from the lower surface side of the water spray plate.

FIG. 8 is a perspective configuration view from the upper surface side of the water spray plate.

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

FIG. 10 is a perspective configuration view from the upper surface side of the cap.

[Explanation of symbols]

 1 Shower Head 2 Grip Hand 2a Recess 3 Water Supply Channel 4 Main Body 5 Water Chamber 7 Boss 9 Fitting Cylinder 14 Seat Plate 17 Center Hole 18 Inner Ring Ring 19 Outer Ring 20 Water Circulation 22 Circulation Hole 23 Section Groove 26 Switching valve 29 O-ring inner hole 30 Elastic plate part 31 Moderation protrusion 32 Sloping surface 33 Opening 34, 35 Convex part 36 O-ring groove 40 Water sprinkler plate 43 Boss part 44 Handle part 45 Water sprinkling hole 46 Insertion hole 47 Projecting rib 48 Ring Rib 49 Inlet 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 (2)

[Claims] 1. A water chamber for spraying massage water is formed on a water sprinkler plate provided on the discharge end side of a shower head, and an impeller is rotatably installed in the water chamber and the impeller is also provided. A massage shower head, characterized in that a plurality of inflow ports are formed in an annular shape on the inner circumference of the water chamber in order to apply swirling running water to the inside. 2. An annular rib is provided inside each of the inlets so as to project the flowing water flowing into the water chamber against a side surface of the impeller in an axial direction of the water spray plate. The massage shower head according to claim 1.