JPH0245635Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a gas appliance device equipped with a hand-operated gas opening/closing device that does not cause strain on the operating rod that opens the gas valve and can hold the valve open with a small amount of electric power.

Conventional hand-operated gas opening/closing devices equipped with a gas valve inside the valve housing that is opened by pushing an operating rod are manufactured by Tokko Show, for example.
It is generally known from Publication No. 52-7870.

However, with these devices, if the operating rod and the operating button are pressed in the wrong way, for example, if the operating button is pushed in a biased state, strain may occur between the operating rod and the valve housing that supports it, and the seal ring interposed between the two may become strained. There are disadvantages such as deformation and poor sealing performance. Therefore, there is also known a device in which the operating button and the valve rod can be freely brought into and out of contact with each other to solve this problem.

However, since this device has an operation button supported by the valve housing, when it is attached to the gas equipment body and exposed to the outside through a through hole provided in the operation panel of the gas equipment body, it is necessary to attach the operation button to the gas equipment body. Depending on how the valve casing is attached, the operation button may not fit into the through hole, or the operation button may come into contact with the side surface of the through hole, resulting in poor operability or even being unable to return. Therefore, the applicant separately provided an operation button for pressing and operating the operating rod supported on the operation plate of the gas appliance main body, and protruded from the valve housing through a through hole provided in the operation plate. We have proposed a system that solves this inconvenience by having the end of the actuating rod move toward and away from the end of the actuating rod.

The present invention is a device in which the operation button and the operating rod are separated, and the valve opening holding means is simple using an electromagnet, and the electromagnet can attract and hold the gas valve open even with a relatively weak excitation force. A valve housing 1 equipped with a gas valve 3 that is opened by pressing an operating rod 2 and kept open by a valve-open holding means 14 is placed inside a gas equipment main body A. The operation button 4 for pushing the operating rod 2 is supported by the operation plate 5 of the gas appliance main body A, and the operation button 4 is provided in a through hole provided in the operation plate 5. 6, the valve opening holding means 14 is provided on the valve housing 1 side, and an electromagnet 10 is provided so as to be able to freely approach and separate from the end of the operating rod 2 protruding from the valve housing 1 via the valve housing 1. A normally closed switch 15 and a normally open switch 13 that close when the operating rod 2 is pressed are inserted into the excitation circuit 12 of the electromagnet 10. Become.

In the illustrated example, a through hole 6 is provided by recessing the outer surface of an operation panel 5 of an oven or other gas appliance main body A in which the valve housing 1 is housed, and an operation button 4 is accommodated and supported within the through hole 6. The tip of the recessed through hole 6 is exposed into the main body A through the hole 6b provided in the bottom plate 6a, and is pushed against the spring 7 stretched between the main body A and the operation button 4. When pressed, the operating button 4 comes into contact with the operating rod 2, and the operating rod 2 is pushed and moved so that the gas valve 3 is pushed open against the spring 8.

The magnetic piece 9 is attached to the tip of the operating rod 2 to oppose the electromagnet 10 provided on the valve housing 1 side, and the normally open switch 13 provided in the excitation circuit 12 is connected to the valve housing 1 of the operating rod 2. Cam part 1 provided on the protruding part
1 so that the magnetic piece 9 shown in FIG. 2 closes just before it comes into contact with the electromagnet 10.

Reference numeral 16 indicates a power source for the excitation circuit 12, 19 indicates an indicator lamp circuit inserted in parallel with the excitation circuit 12, and a normally open switch 13 provided in the excitation circuit 12.
When the gas valve 3 is closed, that is, when the operating rod 2 moves in the valve opening direction and the electromagnet 10 is energized to keep the gas valve 3 open, a lamp 19a interposed in the indicator lamp circuit 19 lights up.

In addition, as shown in FIGS. 1 and 2, the operation button 4
When pressing the operating rod 2 directly, strain may occur between the electromagnet 10 and the magnetic piece 9. In order to prevent this, in the case shown in FIGS. 3 to 5, a sliding member 18 is mounted on the operating rod 2 via a spring 17 having a larger resiliency than the spring 8. The operating rod 2 is made to act on the operating button 4.

In this case, even if the operation button 4 is continued to be pressed with the magnetic piece 9 in contact with the electromagnet 10 as shown in FIG. 5, the spring 17 can absorb the pressing force, and the You can eliminate the inconvenience of

In this way, according to the present invention, even if the valve housing 1 is attached to the gas appliance main body A a little unevenly, the operation button 4 can be made to face the through hole 6 regardless of this. This eliminates the inconveniences seen in the conventional example, and even if the operation button 4 is pressed inappropriately, such as when the operation button 4 is pressed unevenly,
In order to release the external force at the contact portion between the operation button 4 and the operating rod 2, and to obtain an effect that does not cause strain between the operating rod 2 and the valve housing 1 that supports it, the operating rod 2 is pushed and operated. Press the operation button 4 on the gas equipment main body A.
The operating button 4 is supported by the operating plate 5 of the operating plate 5, and the operating button 4 is opposed to the end of the operating rod 2 protruding from the valve housing 1 through a through hole 6 provided in the operating plate 5 so as to be able to move toward and away from it. Even if only the operation button 4 returns to its original position regardless of the gas valve 3, the valve opening holding means 14 is attached to the electromagnet 10 provided on the valve housing 1 side and the operating rod 2 that is attracted to the electromagnet 10. A normally closed switch 15 is connected to the excitation circuit 12 of the electromagnet 10.
and a normally open switch 13 that closes when the actuating rod 2 is pressed, so that when the magnetic piece 9 comes into contact with the electromagnet 10, the magnetic piece 9 is
0, and even if the electromagnet 10 has a relatively weak adsorption force, it can be sufficiently adsorbed. Moreover, if the normally closed switch 15 is opened, the gas valve 3 can be activated regardless of the operation button 4. It has advantages such as being able to be closed and having a simple configuration.

[Brief explanation of the drawing]

In the drawings, Fig. 1 is a cutaway side view of one embodiment of the present invention, Fig. 2 is a cutaway side view showing its operating state, Fig. 3 is a cutaway side view of another embodiment, and Figs. 4 and 5 are cutaway side views. It is a diagram of its operating state. 1... Valve housing, 2... Operating rod, 3... Gas valve, 4
...Operation button, 5...Operation board, 6...Through hole, 1
2... Excitation circuit, 13... Normally open type switch, 15
...Normally closed switch.

Claims (1)

[Scope of utility model registration request] The valve opening holding means 14 is opened by pressing the operating rod 2.
A valve housing 1 equipped with a gas valve 3 that is kept in an open state is fixedly provided in the gas equipment main body A, and an operation button 4 for pushing the operating rod 2 is connected to the gas equipment main body. Provided to be supported by the operation panel 5 of A,
In the case where the operating button 4 is provided so as to be able to move toward and away from the end of the operating rod 2 protruding from the valve housing 1 through a through hole 6 provided in the operating plate 5, the valve opening holding means is provided. 14 is composed of an electromagnet 10 provided on the side of the valve housing 1 and a magnetic piece 9 on the operating rod 2 that is attracted to the electromagnet 14, and a normally closed switch 15 and a magnetic piece 9 on the operating rod 2 are connected to the excitation circuit 12 of the electromagnet 10. A gas appliance device equipped with a hand-operated gas opening/closing device including a normally open switch 13 that closes when pressed.