JPH08228955A - Shower head - Google Patents

Abstract

PURPOSE: To make it possible to prevent the dripping of water from a shower head during water stoppage by mounting a water diffusion plate having many ejection holes in a discharge part for ejecting hot water and disposing a perforated body having a water passing function and water retaining function on the rear surface side thereof. CONSTITUTION: This shower head 1 has the water diffusion plate 5 having two kinds of the ejection holes 6, 7 varying in hole sizes and is so constituted that the flow passage (f) is changed over to the ejection holes 7 of a large diameter at the center and the ejection holes 6 of a small diameter around these holes by operating an internal changeover valve 3 by a push button 2. The perforated body 4 having the water passing and water retaining properties are arranged on the rear surface of the small-diameter ejection holes 6 existing around the water diffusion plate 5. The dripping of the water from the shower head 1 is thus averted by the water retaining function of the body. The perforated body 4 is formed by mounting a wire net on an annular frame composed of plastic or metal and the size of the meshes is set at about 50 to 100 meshes.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has an object to eliminate the phenomenon that water remaining inside the faucet equipped with a shower head drips from the water discharge portion of the shower head when not in use.

[0002]

2. Description of the Related Art A wash basin capable of washing hair is not only used for commercial purposes such as a barber shop and a beauty salon, but also in recent years, the demand is increasing in general households. FIG. 4 shows a washable vanity 1 for general households manufactured to meet such demand.
1 is shown.

In this type of dressing table 11, a shower faucet using a shower head 12 as a hot water discharge device is used instead of a general faucet fitting. At the time of washing hair, by pulling out the hose 15 connected to the shower head 12 and housed on the lower surface side of the washbasin 14 to the outside, the hair can be easily washed.

[0004]

By the way, in the conventional hair wash vanity 11, although the flow passage is surely closed by the flow rate handle 15 when the shower faucet is stopped, Although there is no abnormality in the on-off valve, water drips from the shower head 12 and causes an unnatural phenomenon as if the water leaked due to poor water stopping. This is because the water accumulated between the on-off valve in the shower faucet body and the discharge part 13 of the shower head 12 leaks out through the ejection holes of the water spray plate. When the flow path is closed, the water remaining inside the shower head 12 and the hose 15 connected to it on the downstream side of the on-off valve is as long as the diameter of the water spray plate attached to the discharge part 13 is sufficiently small. It is held inside by surface tension and atmospheric pressure and does not drip. However, since the shower head 12 is usually a plastic molded product, a gap is created between the shower head 12 and the water spray plate due to dimensional error during molding or thermal deformation due to long-term use. As a result, a phenomenon occurs in which the water inside the shower head 12 and the hose 15 is not held by the surface tension and drops little by little from the discharge part 13.

The above-mentioned dripping phenomenon is caused by showers for bathrooms.
It can be prevented if water can be drained like a bath faucet. However, the shower faucet installed on the vanity often cannot drain water from the shower head, which causes the above-mentioned problem.

[0006]

SUMMARY OF THE INVENTION The present invention provides a structure of a shower head which does not cause the above-mentioned problems of the prior art, and is characterized in that a discharge portion for ejecting hot and cold water, That is, a water spray plate having a large number of ejection holes is attached, and a porous body having a water-passing function and a water-retaining function is arranged on the back surface side of the water spray plate.

[0007]

In the shower head according to the present invention, since the porous body having the water-passing function and the water-retaining function is arranged on the back surface side of the sprinkler plate, the water inside the shower head is kept in this porous state when the water is stopped. Retained by the body. Therefore, even if a gap is created between the water spray plate and the shower head due to dimensional error during manufacture, water will not drip from the shower head.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a shower head 1 to which the present invention is applied.
FIG. The shower head 1 in the figure is
The water spray plate 5 is provided with two types of jet holes 6 and 7 having different hole diameters. By operating the internal switching valve 3 with the push button 2, the hot water flow path (illustrated by the arrow f) is changed.
It is configured so that it can be switched to the large-diameter ejection hole 7 in the center and the small-diameter ejection hole 6 in the periphery. The drawing is
A flow path state for discharging hot and cold water from the peripheral small-diameter ejection holes 6 is shown.

In this embodiment, the porous body 4 having water permeability and water retention is disposed on the back surface side of the small diameter ejection holes 6 located around the water spray plate 5. Shower head 1 when water is stopped
The water present therein is usually retained by surface tension and atmospheric pressure. However, if there is no porous body 4 and there is a gap between the water spray plate 5 and the shower head 1 due to dimensional error or deformation, air will flow in from here, and water will flow from the small diameter ejection holes 6 It causes the phenomenon of dropping. However, by disposing the porous body 4 on the back surface side of the water spray plate 5, it is possible to prevent water from dripping from the shower head 1 due to its water retaining function.

By the way, in this embodiment, the porous body was not arranged in the central region of the water spray plate. The reason is that the central ejection hole 7 has a relatively large diameter, so that when the water is stopped, the water in the central portion flows out from the large ejection hole 7 to the outside.

The porous body 4 used in this embodiment has a structure as shown in FIG. 2, for example. (A) is a plan view, (B)
Is a bottom view and (C) is a perspective view. Here, a wire frame 4b is attached to an annular frame 4a made of plastic or metal.
Is attached. The size of the mesh is 50-100
It is set to about mesh.

Further, as shown in FIG. 3, the porous body 4 may be made of porous ceramic. In this case, it is necessary that the pore diameter is 0.5 mm or less in order to have the water retention performance by the surface tension.

The embodiment of the present invention is not limited to the above. The shape and structure of the applicable shower head are appropriately selected. Also, regarding the material and form of the porous body,
It is appropriately changed depending on the type of shower head to which the invention is applied. As described above, the present invention does not prevent various applications depending on the embodiments.

[0014]

INDUSTRIAL APPLICABILITY The present invention can solve the problem of the conventional shower faucet for a hair wash vanity, that is, the water drips from the shower head even when the water is stopped. .

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of a shower head according to the present invention.

FIG. 2 shows an example of a porous body used in the present invention, (A) is a plan view, (B) is a bottom view, and (C) is a perspective view.

FIG. 3 is a perspective view showing another example of a porous body used in the present invention.

FIG. 4 shows a conventional hair wash vanity,
(A) is a perspective view and (B) is a side view.

[Explanation of symbols]

 1 Shower head 4 Porous body 5 Sprinkler plate 6 Jet hole f Flow path

Claims (1)

[Claims] 1. A sprinkler plate having a large number of spout holes is attached to a discharge part for spouting hot and cold water, and a porous body having a water-passing function and a water-retaining function is arranged on the back surface side of the sprinkler plate. Shower head characterized by that.