JPH1133440A - Shower head - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable to change the size of a water discharging surface in a comfortable spray shower discharging state by providing a changeable means for changing the water discharging surface, on which many small holes are perforated, and the width of a region, where water is substantially discharged, and providing a structure for concentrically opening and closing the water discharging surface in the changeable means. SOLUTION: In a state (B) that a diaphragm ring 21 and a rotatably moving ring 25 are rotatably moved in the clock-wise direction and each blade 27 is pushed by a rotatably moving pin 33 and rotatably moved around a fixed pin 31 in the clock-wise direction as well, the inside edge 27a and the side edge 27b of each blade 27 are overlapped to each other and a fixed ring inside hole 29a is closed. When the diaphragm ring 21 is rotated in the anticlock-wise direction from this state, the rotatably moving ring 25 is also rotated in the anticlock-wise direction, a long hole 35 of each blade 27 is pushed in the anticlock-wise direction and each blade 27 is rotatably moved around the fixed pin 31 in the anticlock-wise direction to be opened outside. The width of the water discharging surface is continuously and concentrically adjusted by such the opening and closing structure of the diaphragm structure of a camera.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shower head mounted on a bathtub, a vanity, and the like. In particular, the present invention relates to a shower head improved so that the size of a water discharge surface can be switched in a comfortable spray shower water discharge state.

[0002]

2. Description of the Related Art A shower head is a device which is connected to the tip of a shower hose and ejects a water flow from a water discharge surface thereof. In recent years, shower heads have become more multifunctional. Water is discharged by switching between a massage shower that gives vibrations like a massage with almost one rod-shaped stream of water and a spray shower that blows out from many small holes. Something that can be done is also used.

Also, Japanese Utility Model Laid-Open No. 63-160957 discloses that
A shower head having a belt-shaped water discharge surface and a valve body that slides inside the water discharge surface, and changing the length of the water discharge surface that actually discharges water by changing the position of the valve body is disclosed.

[0004]

The above-mentioned massage shower / spray shower switching type cannot increase or decrease the water discharge area of the spray shower. On the other hand, the shower head of Japanese Utility Model Laid-Open No. 63-160957,
Since the water discharge surface was elongated, the water discharge area was elliptical, and the shower was not applied to the shoulder when the shower was applied around the head.

An object of the present invention is to provide a shower head improved so that the size of a water discharge surface can be switched in a comfortable spray shower water discharge state.

[0006]

In order to solve the above-mentioned problems, a shower head according to the present invention comprises a substantially circular water discharge surface having a large number of small holes, and an area for actually discharging water within the water discharge surface. A shower head having a mechanism for opening and closing the water discharge surface substantially concentrically.

That is, the water discharge surface area of the shower head can be concentrically changed to a free area like a diaphragm structure of a camera. With such a configuration, since the water discharge area is substantially circular, when a shower is taken around the head, the whole body is showered. Further, when the water discharge area is narrowed, a spot shower in which a strong shower is applied only to a small area can be obtained.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a structure of a shower head according to one embodiment of the present invention. (A) is a side view of the appearance.
(B) and (C) are front views showing the details of the opening and closing mechanism. (B) shows a fully closed state, and (C) shows a fully open state.

The shower head 1 comprises a head portion 5 and a handle 7. The front surface of the head portion 5 is a circular water discharge surface 3 having many small holes (not shown). A hose 11 is connected to the handle 7 via a joint 9. An aperture ring 21 is rotatably fitted in the head 5. By the mechanism described later, this aperture ring 2
By rotating 1, the water discharge area on the water discharge surface can be opened and closed steplessly substantially concentrically.

As shown in FIGS. 1B and 1C, the opening / closing mechanism of the shower head includes an aperture ring 21 described above, a rotation ring 25 that rotates synchronously with the aperture ring, and an inside of the rotation ring 25. , And five blades (sectors) 27. The rotating ring 25 is fixed to a fixed ring 29.
Is rotatably fitted to the outside. Rotating ring 25
Is connected to the aperture ring 21 via an arm 23, and when the aperture ring 21 is turned, the rotation ring 25 also rotates synchronously. The fixing ring 29 is fixed to the main body of the shower head 1.

The blade 27 is formed by forming a flat plate into a cam shape as shown in the figure. The inner side 27a is shown in FIG.
As shown in the figure, the fixing ring 29 has an arc shape slightly larger than the inner diameter 29a. Further, as shown in FIG. 1B, the side 27b is formed into a curve that overlaps the inner side 27a when fully closed. Outer side 27c of blade 27
Is formed so as to draw an arc slightly larger in diameter than the inner diameter 29a of the fixing ring 29 when fully closed.

The blade 27 is connected to a fixing ring 29 at one end of an inner side 27a by a fixing pin 31 so as to be rotatable around the pin. An elongated hole 35 is formed outside the fixed pin 31 of the blade 27. This long hole 3
5, the rotation pin 33 is slidably inserted. Here, the rotation pin 33 is implanted on the outer periphery of the rotation ring 25.

Next, the operation of the opening / closing mechanism will be described. In FIG. 1B, the aperture ring 21 and the rotation ring 25 are rotated clockwise, and each blade 27 is
It is also pushed clockwise by the turning pin 33 around the center 1. Therefore, each blade 27 is located inside. Then, the inner side 27a of each blade 27 and the side 2
7b overlaps and the central part of the fixing ring inner hole is closed. On the other hand, the outer side 27c of each blade 27 is located slightly outside the inner hole 29a of the fixing ring 29. Therefore, the inside of the fixing ring inner hole 29 a is completely closed by each blade 27.

When the aperture ring 21 is turned counterclockwise from the state shown in FIG. 1B, the rotating ring 25 also turns counterclockwise. At this time, the elongate hole 35 of each blade 27 is pushed in the counterclockwise direction.
Rotate counterclockwise around 1 and open outward. The state shown in FIG. 1C is completely opened in this manner. At this time, the inner side 27a of each blade 27 is
And the fixing ring inner hole 29a is fully opened.

As described above, in this embodiment, the width of the water discharge surface can be adjusted concentrically in a stepless manner by the opening / closing mechanism having a structure like a diaphragm of a camera.

[0016]

As apparent from the above description, the shower head of the present invention has the following effects. Depending on the size of the water discharge surface, the shower head can be set to a desired momentum. When the water discharge surface is widened, the momentum decreases, and when the water discharge surface is narrow, the momentum increases.

[0017] A small flow rate in the comfortable area (7 liters / minute)
Up to a large flow rate (20 liters / minute). Even if the water pressure is low and the amount of water discharged is small, it is possible to take a shower with hot water by reducing the size of the water discharge surface. When the water pressure is high and a high-capacity water heater is used, it is possible to take a shower with a large flow rate and the strength of the hot water is not too strong. The power of hot water can be adjusted without changing the amount of water discharged. If the shower momentum is set first, there is no need to adjust the momentum by opening and closing the faucet. The faucet only needs to be fully open when in use and fully closed when shut off, simplifying operation.

[Brief description of the drawings]

FIG. 1 is a view showing a structure of a shower head according to one embodiment of the present invention. (A) is a side view of the appearance. (B)
(C) is a front view showing the details of the opening and closing mechanism.
(B) shows a fully closed state, and (C) shows a fully open state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 shower head 3 water discharge surface 5 head part 7 handle 9 joint 11 hose 21 aperture ring 23 arm 25 rotation ring 27 blade 27a inner side 27b side side 27c outer side 29 fixing ring 31 fixing pin 33 rotation pin 35 long hole

Claims (2)

[Claims] 1. A shower head comprising: a substantially circular water discharge surface having a number of small holes; and means for varying the area of the water discharge surface in the water discharge surface; A shower head having a mechanism for opening and closing the water discharge surface substantially concentrically. 2. A plurality of aperture blades having substantially arc-shaped sides that define the water discharge area in the mechanism, wherein a plurality of aperture blades are provided between a position where the sides are brought to the center of the water discharge surface and a position away from the center. 2. The shower head according to claim 1, further comprising a plurality of diaphragm blades that can be rotated by the above.