JPH0777631B2 - Instant water heater shower head - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is a proximity sensor mounted on the tip of a hot water outlet pipe of an instant water heater and capable of switching between hot water discharge and hot water discharge stop without touching the operating means of the water heater body. Attached shower head.

[0002]

2. Description of the Related Art Conventionally, there has been proposed an instantaneous water heater in which an infrared sensor is attached to a shower head and hot water can be stopped or stopped when a user brings his or her hand closer. According to this
The user can start and stop hot water without touching the controls.
Very convenient. Meanwhile, the hot water pipe instant water heaters, usually connected to the distal end of the stationary supply pipe, the tip have been pivotally mounted a support shaft, when using the water heater is hot water
Rotate the tube to the center of the sink and, when not in use, beside the sink
Rotate toward. This ensures that the tap pipe is always in the sink.
Working in a sink so it doesn't exist in the center and gets in the way
To make it easier. However, when not in use, rotate it to the side
Because, when rotates the hot water pipes by mounting condition of water heater, shower head approaches the wall or the like, adjacent cell
There was a problem that the sensor worked .

[0003]

BRIEF problem It is an object of the present invention is to provide a shower head of the instant Mayunie device Ru can prevent the malfunction.

[0004]

According to the present invention, a tip end of a fixed hot water supply pipe of an instantaneous water heater equipped with an automatic water feed valve is attached to a tip end of a hot water supply pipe rotatably mounted about the tip end as a spindle. and attached Resid Yawaheddo body, the showerhead and a proximity sensor for opening and closing the front SL automatic water supply valve installed in a surface portion of the body, displaceably mounted a proximity sensor, about the axis of the shower head body did.

[0005]

[Operation and effect of the invention] The tap pipe is rotatably attached
Therefore, when using, do not place it in a convenient place.
It can be moved to an unobtrusive place during use.
On the other hand, the proximity sensor is showered depending on the installation status of the water heater.
Displace it around the axis of the head body so that the hot water pipe is
When a wall near the limit is approached, the proximity sensor
It can be set to a position where it does not cause a malfunction of reacting.
As a result, when not in use, the hot water outlet pipe can be rotated to the side and shuffled.
Even if the workhead approaches a wall, the proximity sensor does not respond.
Without erroneous operation can be prevented.

[0006]

EXAMPLES Next, the present invention will be explained based on examples. 1 to 3 show an embodiment of the present invention, a shower head 1
00 is attached to the tip of a fixed hot water supply pipe 201 of the gas instantaneous water heater 200, and to the tip of a hot water discharge pipe 300 rotatably attached to the fixed hot water supply pipe 201 about the tip. Fixed hot water supply pipe 2
An electric automatic water supply valve 202 is installed at 01, and the hot water outlet pipe 300 is formed by wrapping the outside of a metal pipe 301 having a flexible portion with a resin pipe 302 having a bellows portion. Further, the water heater 200 is provided with a control device 400 for performing hot water supply, ignition, setting of hot water temperature, detection of abnormal combustion, and the like.

The shower head 100 is in the shape of a truncated bomb, and has a shower head body 1 in which a switch mechanism for switching between straight hot water supply and shower hot water supply (not shown) is provided, and an operation piece of the switch mechanism provided on the surface thereof. An infrared sensor 3, which is a proximity sensor that opens and closes 48 and the automatic water supply valve 202, is provided.

The shower head body 1 includes a housing 4 of the switching mechanism and a cap 5 fitted on the upper portion thereof.
And a base 6 attached to the tip of the housing 4.

The housing 4 has a cylindrical shape having a connecting cylinder 41 into which the tip of the hot water outlet pipe 300 is inserted and fixed, and a ceiling wall continuous with the connecting cylinder 41, and a body portion 42 accommodating the switching mechanism. Has become. The connecting cylinder 41 is composed of a large-diameter upper portion 43, an intermediate portion 44, and a small-diameter lower portion 45. The tip of the metal pipe 301 of the tap pipe is fitted into the intermediate portion 44, and the tip of the resin pipe 302 is inserted into the upper portion. ing. Top 4
The outer periphery of 3 has a regular octagonal cross section, the outer periphery of the upper end of the body portion 42 has a somewhat smaller outer diameter, and a peripheral groove 46 is provided. The lower end of the body portion 42 is a skirt portion 47 having a slightly smaller diameter.

On the surface of the body 42, an operating piece 48 of the switching mechanism is provided so as to project. The operation piece 48 swings laterally around the center position as a fulcrum, and straight water supply is provided at the solid line position and shower water supply is provided at the two-dot chain line position.

The cap 5 has a truncated shell shape and has an upper end portion 51.
The inner circumference of the connecting pipe is formed in a regular octagonal cross section, and the upper portion 43 of the connecting pipe is
A ridge 53 is fitted around the inner circumference of the lower end portion 52 and fits into the circumferential groove 46, and is fitted around the outer circumference of the upper end of the housing. An installation window 55 for the infrared sensor 3 is opened in the lower portion of the wall surface, is covered with an infrared permeable resin 31, and the infrared sensor 3 including an infrared light emitting element and an infrared light receiving element is fitted. The lead wire 32 of the sensor 3 is connected to the control device 400 through a small hole formed at the lower end of the upper portion 43 through a gap between the metal pipe 301 and the resin pipe 302 of the tap pipe 300.

The upper end of the mouthpiece 6 is externally fitted to the skirt portion 47 of the body portion 42, a straight hot water supply port 62 is provided at the center of the tip end surface 61, and a shower hot water supply port 63 is formed around the straight hot water supply port 62. Are formed.

In this embodiment, as shown by the chain double-dashed line in FIG. 2, the cap 5 is lifted upward in the drawing to remove the fitting of the octagonal portions, rotated in a desired direction, and fitted again, whereby the infrared sensor 3 The relative position of the tapping pipe 300 and the switching operation piece 48 can be displaced in 45 degree increments.

4 and 5 show another embodiment. In this embodiment, the outer periphery of the upper portion 43 of the connecting cylinder 41 is circular, and the recesses 49 are arranged in the circumferential direction, and the upper end portion 51 of the cap 5 fitted onto the upper portion 43 is urged toward the center. An engaging element 56 that engages with these recesses 49 is attached. As a result, the cap 5 is rotatable with respect to the housing 4. Further, a protruding stopper 40 is provided on the outer circumference of the upper portion 43 of the connecting cylinder so that the stopper 40 interferes with the engaging element 56. As a result, the cap 5 is rotated many times with respect to the housing 4, and the lead wire 32 is prevented from being torn off. In the above-mentioned embodiment, the positioning is performed between the cap 5 and the body portion 42, but the positioning may be performed between the cap 5 and the hot water pipe 300.

[Brief description of drawings]

FIG. 1 is a perspective view of a shower head of an instant water heater according to the present invention.

FIG. 2 is a cross-sectional view of a main part of a side surface of the shower head shown in FIG.

FIG. 3 is a schematic front view of an instantaneous water heater.

FIG. 4 is a perspective view of a shower head of an instant water heater according to another embodiment.

5 is a cross-sectional view of a main part of a side surface of the shower head of FIG.

[Explanation of symbols]

 100 Shower head 200 Instant water heater 300 Hot water pipe 1 Shower head body 3 Infrared sensor (proximity sensor) 48 Operation piece of switching device

Claims (1)

[Claims] And 1. A Resid Yawaheddo body attached to the tip of the automatic water supply valve pivotally mounted a tapped tube tip portion as the support shaft to the distal end portion of the stationary supply pipe of the instant water heater equipped with, in the shower head with a proximity sensor for opening and closing the front SL automatic water supply valve installed in a surface portion of the body, a proximity sensor, showerhead moment mounted displaceably around the axis of the shower head body water heater .