JPH0133178Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a shower head, and particularly to a shower head equipped with a device that can increase or decrease the amount of water sprinkled, adjust the angle of water spray, and change the state of water spray by rotating a handle provided on the shower head.

Hitherto, various structures of this type of shower head have been known. For example, the structure shown in FIG.
-There is one published in No. 22811.

Referring to FIG. 11, when the cover 31 is rotated, the handle 7 fixed to the cover 31 is rotated.
moves up and down while rotating, increasing or decreasing the gap between the water sprinkling plate 15 fixed to the lower end of the spindle 10 and the inner surface of the handle 7 to change the water sprinkling amount, and when the water sprinkling amount is reduced to the maximum, the handle 7 is in the lowest position and the handle The lower surface of the water sprinkling plate 15 comes into contact with the upper surface of the water spray plate 15 .

Therefore, when the cover is further rotated from the above state, the lower surface of the handle 7 presses against the upper surface of the sprinkler plate 15, the sprinkler plate rotates together with the handle, and the sprinkler plate falls off together with the spindle. .

The present invention aims to solve the above-mentioned problems and prevent the sprinkler plate from falling off.

The structure of the present invention to achieve the above object includes a shower head body having an inlet, an outlet, and a water hole connecting these two ports, and a shower head that is formed in a cylindrical shape and is screwed into the water hole of the shower head body. A fitting having a first flange projecting outward below the threaded part;
The second flange is formed in a cylindrical shape and protrudes above the inner circumferential surface, and a first engaging portion consisting of a protrusion is provided on the inner circumferential surface below the second flange, and the second flange is attached to a mounting tool. A handle is attached to the first flange of the shower head and is rotatably attached to the main body of the shower head, and a handle is formed in a bottomed cylindrical shape and is screwed to the inner circumference of the fixture so as to be movable up and down, and has an opening at the upper end. A spindle, which has an outer diameter slightly larger than the outer diameter of the threaded part to the above-mentioned fixture, and has a through hole below the threaded part that connects the inner and outer surfaces, and is fixed non-rotatably to the bottom wall of the spindle. A groove is provided on the outer circumferential surface of the middle part, and a first groove of the handle is provided above the groove.
A water sprinkling plate support provided with a second engaging portion consisting of a protrusion that engages with the engaging portion and transmits the rotation of the handle to the spindle, and a water sprinkling plate support that is formed into an annular shape and cannot fall into the groove of the water sprinkling plate support. It is equipped with a water sprinkling plate with a large number of slanted grooves that do not widen in the axial direction on the outer peripheral surface.
By forming the first engaging part and the second engaging part to slightly engage with each other when the spindle is in its lowest position, the spindle and the handle will remain stable even if the handle is further turned from the position in which the spindle is in its lowest position. The engaging portion of the spindle slips and prevents the rotational force of the handle from being applied to the spindle.

Hereinafter, embodiments of the present invention will be described based on the drawings.

In the figure, reference numeral 1 denotes the main body of the shower head, which has an inlet 2 and an outlet 3 that are connected through a water passage hole 4 in a substantially perpendicular direction, and a portion of the water passage hole 4 that is coaxial with the outlet 3. A first female threaded portion 18 is formed on the inner circumferential surface of.

Further, the shower head main body 1 is formed with a handle mounting recess 19 in an annular shape surrounding the first female threaded portion 18 and opening toward the outlet 3 side, and is engaged with the recess 19 and is connected to a mounting tool 5 to be described later. The handle 7 is supported and rotatably mounted.

The handle 7 is formed into a cylindrical shape with a smaller diameter at the upper part through a step, and the upper part is connected to the shower head main body 1.
It is inserted into the recess 19 for attaching the handle, and has a second flange part 8 on the inner circumferential surface that protrudes inwardly at an upper part in the axial direction, and further has a first engaging part below the second flange part 8. It has a joint 9.

The first engaging portion 9 is composed of a number of protrusions that protrude radially inward along the inner circumferential surface of the handle 7, and the protrusions are formed such that the vertical dimension thereof gradually decreases toward the center of the handle 7. has been done. That is, the lower surface of the protrusion is tapered upward toward the center.

The fitting 5 is formed into a cylindrical shape, and has a first male threaded portion 20 on its outer circumferential surface that is screwed into the first female threaded portion 18 of the shower head main body 1, a second female threaded portion 21 on its inner circumferential surface, and an external threaded portion on its lower end outer circumferential surface. The first flange 6 protrudes toward the
, and the first female threaded portion 1 of the shower head main body 1
8, the second flange 6 is hooked to the lower surface of the first flange 8 of the handle 7, and the handle 7 is supported so as not to fall off from the shower head main body 1.

Further, the spindle 10 is screwed onto the second female threaded portion 21 of the fixture 5.

The spindle 10 is formed into a cylindrical shape with a bottom, and the second female threaded portion 21 of the fixture 5 is formed on the outer peripheral surface of the axially intermediate portion.
A second male threaded portion 22 is provided to be screwed into the second male screw portion 22.
It is screwed onto the female threaded portion 21.

Further, the spindle 10 is provided with a protrusion 23 having a slightly larger diameter than the second male threaded part 22 on the outer periphery of the upper end, and a notch 24 is provided between the protrusion 23 and the second male threaded part 22, and a notch 24 is provided below the second male threaded part 22. A through hole 11 is provided in each of the holes 11 to connect the inside of the spindle 10 to the outside of the spindle 10 via the notch 24 and the through hole 11.

Further, the spindle 10 has a spline shaft 25 protruding from the center of the lower end surface, and furthermore, this spline shaft 25
5. A screw shaft 26 is provided at the center of the lower end surface, and the water sprinkler plate support 12 is attached to the screw shaft 26.

The sprinkler plate supports 12 each include a bottomed cylindrical upper member 12 that is screwed together with the openings facing in the relative direction.
a and a lower member 12b, the upper member 12a
Flange-shaped protrusions 27 and 28 are provided on the upper end periphery and the lower end periphery of the lower member 12b, respectively, and an annular groove 15 is formed on the outer peripheral surface.
6.

A mounting hole 29 having the same number of grooves corresponding to the spline shaft 25 of the spindle 10 is formed in the center of the upper surface of the upper member 12a.
9 onto the spline shaft 25, and screw the nut 30 onto the threaded shaft 26 from the bottom side to complete the spindle 1.
0, and an appropriate number of through holes 32 are bored surrounding the attachment hole 29. On the other hand, a plurality of water spray holes 33 are bored in the bottom wall of the lower member 12b.

Further, the water sprinkler plate support 12 is provided with a second engaging portion 13 and a third engaging portion 14 that engage with the first engaging portion 9 of the handle 7 on the upper surface of the upper member 12a.

The second and third engaging portions 13 and 14 are the upper member 1
It consists of four protrusions radially provided at equal intervals on the periphery of the upper surface of 2a, one of which constitutes the second engaging part 13, and the remaining three constitute the third engaging part 14.

The second engaging portion 13 has a diameter from the outer end of its upper surface to the center of the water sprinkling plate support 12 that is slightly larger than the diameter from the inner end of the lower surface of the first engaging portion 9 to the center of the handle 7. The diameter of the engaging portion 14 from the outer end of the upper surface to the center of the water sprinkling plate support 12 is the same as the diameter from the inner end of the lower surface of the first engaging portion 9 to the center of the handle 7.

Incidentally, the spindle 10 reaches a state where the third engaging part 14 and the first engaging part 9 are disengaged and only the second engaging part 13 is barely engaged with the first engaging part 9. When the sprinkler plate support 12 is lowered, the projecting edge 23 at the upper end engages with the upper end of the second female threaded portion 21 of the fixture 5, so that it is in the most lowered state.

The sprinkler plate 16 is formed into an annular shape and the sprinkler plate support 12
It fits into the groove 15 of.

Further, the water spray plate 16 has a large number of inclined grooves 17 recessed in the axial direction on its circumferential surface.

The inclined groove 17 has a V-shaped cross section and is formed to widen downward.

When the handle 7 is rotated, the rotational force is transmitted to the spindle 10 via the sprinkler plate support 12 due to the engagement between the first engaging portion 9 and the second and third engaging portions 13 and 14. The spindle 10 moves forward and backward while rotating, and the water sprinkling plate support 12 also moves forward and backward, raising and lowering, thereby adjusting the water sprinkling state and the water sprinkling angle.

In this embodiment, in the raised position where the water sprinkling plate support 12 is retracted, the water sprinkling from the inclined groove 17 is
The streamline of the sprayed water is thin and the sprayed angle is widened, and at the lowered position, the streamline of the sprayed water is thick and the sprayed angle is narrowed. Also, water is sprayed from the water sprinkling holes 33 of the lower member 12b of the water sprinkling plate support 12.

Then, rotate the handle 7 and spindle 1
0, when the spindle 10 descends to the lowering limit, the third engaging part 14 and the first engaging part 9 are disengaged, and only the second engaging part 13 is slightly connected to the first engaging part 9. It is in a state where it is engaged.

Even if the handle 7 is further rotated in the same direction in this state, the protrusion 23 at the upper end of the spindle 10 will come into contact with the upper end of the fixture 5, and from then on, the rotational force of the handle 7 will cause the first engagement to occur. The part 9 is the second engaging part 13
As a result, the spindle 10 is not rotated by the rotational force of the handle 7.

Moreover, if the handle 7 is rotated in the opposite direction in this state, the second engaging part 13 is slightly engaged with the first engaging part 9, and the spindle can move upward.
The spindle 10 rotates and rises due to the rotational force of the handle 7.

Note that the present invention is not limited to the above embodiments. For example, the lower surface of the protrusion forming the first engaging part 9 is a horizontal plane, and the vertical direction of the protruding part forming the second and third engaging parts 13 and 14 that engage with the first engaging part The protrusion distance may be made different.

Alternatively, the upper surface of the protrusion of the second engaging part 13 may be formed into a tapered shape that slopes upward or downward toward the center, and the lower surface of the protruding part of the first engaging part 9 may be formed as a horizontal surface.

Since the present invention has the above configuration, it has the following advantages.

Even if the spindle is lowered to the minimum level and the handle is further turned, the water sprinkling plate support interposed between the handle and the spindle;
Since the engaging part with the handle slips, the rotational force of the handle is not applied to the spindle, the spindle and the fixture that guides the forward and backward movement of the spindle do not rotate, and the sprinkler plate etc. do not fall off from the shower head main body.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of a shower head showing an example of the embodiment of the present invention, showing a state where the amount of water sprinkled is the minimum, Fig. 2 is a cross-sectional view taken along the - line in Fig. 1, and Fig. 3 is a state where the amount of water sprinkled is the maximum. 4 is a cross-sectional view of - of FIG. 3.
5 is an enlarged sectional view taken along the - line in Fig. 4, Fig. 6 is an enlarged sectional view taken along the - line in Fig. 4, Fig. 7 is a sectional view showing an exploded state, and Fig. 8 is a perspective view of main parts. 9 is an enlarged side view of section a in FIG. 8, FIG. 10 is an enlarged side view of section b in FIG. 8, and FIG. 11 is a sectional view showing an example of a conventional shower head. 1...Shower head body, 2...Inflow port, 3
...Outlet, 4...Water hole, 5...Mounting tool, 6...
...first flange, 7...handle, 8...second flange,
9...first engaging portion, 10...spindle, 11...
...Through hole, 12...Water plate support, 13...Second engagement portion, 15...Concave groove, 16...Water plate, 17...
Slanted groove.

Claims (1)

[Scope of Claim for Utility Model Registration] A shower head body 1 having an inlet 2, an outlet 3, and a water hole 4 that connects these two ports; A first portion protruding outwardly below the threaded portion.
A fitting 5 provided with a flange 6, a second flange 8 which is formed in a cylindrical shape and protrudes above the inner circumferential surface, and a first fitting consisting of a protrusion on the inner circumferential surface below the second flange 8. A handle 7 is provided with a joint 9 and is rotatably attached to the shower head main body 1 by hooking the second flange 8 to the first flange 6 of the fixture 5; It is screwed onto the inner periphery of the fixture 5 so that it can move up and down freely, and the upper end opening is connected to the inside circumference of the fixture 5.
A spindle 10, which has an outer diameter slightly larger than the outer diameter of the screwed part, and has a through hole 11 below the screwed part that connects the inner and outer surfaces, and a spindle 10 fixed to the bottom wall of the spindle 10 in a non-rotatable manner. A second engagement is provided with a groove 15 on the outer circumferential surface of the midway portion, and a protrusion above the groove 15 that engages with the first engagement portion 9 of the handle 7 and transmits the rotation of the handle 7 to the spindle 10. A water sprinkling plate support 12 is provided with a water sprinkling plate support 12, which is formed into an annular shape and is attached to the concave groove 15 of the water sprinkling plate support 12 so as not to fall off, and a large number of inclined grooves 17 that are not widened in the axial direction are provided on the outer peripheral surface. A water sprinkling plate 16 is provided, and when the spindle 10 is in the lowest position,
A shower head characterized in that the first engaging part 9 and the second engaging part 13 are formed so as to slightly engage with each other.