JP2001132030A - Water supply system and equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water supply system, in which a user can realize desired operation even when operation by a foot switch and operation by a control lever of a faucet are used together by the user. SOLUTION: This water supply system has solenoid valves 2, 2 conducting water supply and cutoff to a faucet 1 with a control lever 11 for opening and closing, a controller transmitting an open-close signal to both solenoid valves 2, 2, a foot switch 4 installed at a foot and controlling the operation of the controller and a man sensor 3 mounted near the foot switch 4, and the opening and closing of the solenoid valves 2, 2 are controlled by the foot switch 4 and the man sensor 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water supply device for opening and closing a water faucet such as a wash basin or a sink with a foot-operated foot switch installed at a foot.

[0002]

2. Description of the Related Art For example, in Japanese Utility Model Publication No. 2-3020 and Japanese Utility Model Publication No. 4-66985, a wash basin and a sink with a foot switch are known. By the way, in this conventional device, there is a problem that when the user operates the foot switch incorrectly, the water is left out.

[0003] In order to prevent the water from being discharged due to the user's erroneous operation of the foot switch, for example, Japanese Patent Application Laid-Open No. 10-132131 discloses a water supply device provided with a timer switch. Specifically, when the user steps on the foot switch, the electromagnetic valve for water supply is opened and water supply is started. At this time, if the step on the foot switch is longer than a predetermined time, the user turns on the foot switch. Is the first operation mode in which water is supplied until the user releases
If the time during which the user steps on the foot switch is shorter than a predetermined time, the water supply device for the sink is in a second operation mode in which water is supplied until the user steps on the foot switch again.

[0004]

However, in the water supply device disclosed in the above publication, if the water faucet is provided with an operation lever, when the user stops the water with the operation lever at hand, the foot switch side. If the ON state of is continued, the solenoid valve will be closed. As a result, even if the user tries to discharge water again with the operation lever at hand, no water will come out. For this reason, there was a problem that the user was uncomfortable.

[0005] It is an object of the present invention to provide a water supply device that allows a user to achieve desired operation even when the user mixes operation using a foot switch and operation using an operation lever of a faucet. It is.

[0006]

According to a first aspect of the present invention, there is provided a water supply apparatus for supplying and stopping water to a water supply device, a valve control unit for applying an open / close signal to the water supply valve, And a human sensor installed near the foot switch for controlling the operation of the valve control unit. The opening and closing control of the water supply valve is performed by the foot switch and the human sensor. It is what is being done.

According to a second aspect of the present invention, in the water supply apparatus according to the first aspect, the water supply device has an operation lever for opening and closing.

According to a third aspect of the present invention, there is provided an equipment provided with the water supply device according to the first or second aspect.

(Function) The water supply device of the present invention according to the first aspect includes a foot switch installed at a foot to control the operation of a valve control unit, and a motion sensor installed near the foot switch. , Since the opening and closing of the water supply valve is controlled by the foot switch and the human sensor,
Even if the user mixes the operations by the foot switch or the operation lever of the faucet, the user can realize the desired operation.

Also, since the motion sensor is installed near the foot switch, even if the user does not operate erroneously, it is possible to prevent the water from being discharged.

According to the second aspect of the present invention, even if the user does not close the operation lever of the water faucet and stays there, the motion sensor existing near the foot switch allows the user to stay. The water supply valve is closed by sensing that the water supply valve is not present and sending a control signal from the valve control unit to close the water supply valve. Therefore, the release of water is prevented.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory view showing a main part of a first embodiment of the water supply device of the present invention.

This embodiment shows an example in which the water supply device of the present invention is applied to a kitchen sink. The water supply device S includes a faucet 1, electromagnetic valves 2 and 2 for supplying and stopping water to the faucet 1, a controller (not shown) for sending a control signal for opening and closing to the electromagnetic valves 2 and 2, A foot switch 4 for controlling the operation of the controller and a human sensor 3 are provided.

The faucet 1 has an operating lever 11 for opening and closing. 21 is a pipe for hot water, and 22 is a pipe for cold water. The human sensor 3 is installed near the left side of the foot switch 4. As shown in FIG. 1, the human sensor 3 and the foot switch 4 are horizontally long metal boxes 5.
It is arranged and installed in the inside. The human sensor 3 is a far-infrared sensor, and detects that a person is within a predetermined detection range in front of the far-infrared sensor. The front of the human sensor 3 is protected by a cover made of high-density polyethylene resin.

The motion sensor 3 and the foot switch 4 are electrically connected to the controller, and the controller is electrically connected to the solenoid valves 2 and 2 by electric wires 6 and 6. Reference numeral 7 denotes a power supply wire. As a result, both the foot switch 4 and the motion sensor 3
Opening / closing control of the solenoid valves 2 and 2 is performed through a controller.

Next, the usage of the water supply device S of the above embodiment will be described. The open / close state of the faucet 1, the human sensor 3, and the foot switch 4 takes eight states from A to H as shown in Table 1.

From A to D in Table 1, that is, even if the faucet 1 is open, if at least one of the motion sensor 3 or the foot switch 4 is in the OFF state, the water stop state is set. Become. That is, use state (A state)
Even if the user is not present at that place (C state), the water stop state is automatically established by the detection and operation of the human sensor 3.

When operating with the foot switch 4,
It is possible to discharge and stop water by the operation of the A state → the B state → the A state. A person whose hands are closed or a handicapped person can freely discharge and stop water simply by operating the foot switch 4. On the other hand, when operating with the operation lever 11, A state → E state →
Water can be discharged and stopped by the operation in the A state.

[0019]

[Table 1]

In the above embodiment, an example is shown in which the water supply apparatus of the present invention is applied to a kitchen sink, but it is needless to say that the water supply apparatus can be applied to equipment such as a wash basin.

[0021]

According to the first aspect of the present invention, there is provided a water supply apparatus comprising: a foot switch installed at a foot to control the operation of a valve control unit; and a human sensor installed near the foot switch. The water supply valve is opened and closed by a foot switch and a human sensor, so that the user can operate as desired even if the user mixes the operation of the foot switch and the operation lever of the faucet. Can be realized.

Further, since the motion sensor is provided near the foot switch, even if the user does not operate erroneously, it is possible to prevent water from being discharged.

According to the second aspect of the present invention, for example, even if the user leaves the place with the operation lever of the faucet open, the presence sensor detects that no user is present. Therefore, it is possible to prevent water from being discharged from the faucet.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing an example of a water supply device of the present invention with a part thereof omitted;

[Explanation of symbols]

 S water supply device 1 faucet 11 operating lever 2 solenoid valve 21 and 22 water pipe 3 human sensor 4 foot switch 5 box

Claims (3)

[Claims] 1. A water supply valve for supplying and stopping water to a water supply device, a valve control unit for giving an open / close signal to the water supply valve, a foot switch installed at a foot to control the operation of the valve control unit, A water supply device comprising a motion sensor installed near the foot switch, wherein opening and closing of a water supply valve is controlled by the foot switch and the motion sensor. 2. The water supply device according to claim 1, wherein the water supply device is a faucet having an operation lever for opening and closing. 3. An equipment provided with the water supply device according to claim 1.