JPH0241486Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial field of application The present application works in conjunction with a gas stove equipped with a gas combustion device such as a gas stove or gas stove and has an ignition function, and outputs a gas stove signal when the gas stove is opened. This invention relates to a switch mechanism used when controlling a gas combustion circuit.

Background of the invention The inventor first developed a flame sensor that detects the presence or absence of flame during gas combustion and outputs a flame signal when flame is present, and a gas combustion device that works in conjunction with the gas combustion device. It has a fire switch that outputs a fire signal when opened, and an electromagnetic valve that opens when energized and normally shuts off the gas supply from the gas supply source to the gas supply path, and that outputs the flame signal and the fire signal. By inputting and outputting the AND gate,
A gas shutoff device in an emergency has already been proposed, which is characterized by comprising a control circuit that allows the electromagnetic valve to be energized.

The present application relates to a switch mechanism used in a gas cutoff device having such a configuration, and in particular is configured so that it can be easily attached to a gas combustion device.

Embodiments and effects of the invention The embodiments of the present application will be described in detail with reference to the drawings below.
Reference numeral 1 denotes a disk-shaped fixing member made of an insulating material such as synthetic resin, and in the center thereof, a fitting hole 2 and a thick holding part 3 with a slightly depressed inner surface and a bulged outer surface are arranged concentrically. A concave portion 4 is provided along the circumferential direction on the outer surface of the holding portion 3, and lead wire outlet holes 5 are provided at both ends of the concave portion 4. 6 has a shallow fitting recess 7 on the inner surface into which the holding part 3 is fitted, and a shaft part 8 in the center that extends inward and is inserted into the fitting hole 2 of the fixing member 1, and on the outer surface. It is an operation member made of synthetic resin or the like, integrally formed with a bulging knob part 9, and has a plurality of recessed parts 10 arranged along the inner circumferential direction of the fitting recessed part 7, and the shaft part 8. A shaft hole 11 is provided along the shaft center, and a screw hole 12 is provided in a direction perpendicular to the shaft hole 11.

When in use, the reed switch S is inserted into an arbitrary concave portion 4 provided in the fixing member 1, and is buried with a suitable adhesive or embedding material. A magnet M is guided inward from the fixing member 1 through the lead-out hole 5, and is inserted into an arbitrary concave portion 10 in which the operating member 6 is disposed, and is fixed with an appropriate adhesive or an embedded material. Bury it. The fixing member 1 and the operating member 6 configured in this manner are assembled so that the shaft portion 8 is inserted into the fitting hole 2 and the holding portion 3 is fitted into the fitting recess 7, and the stop sleeve 14 is fitted. , the shaft portion 8 protruding from the inner surface of the fixed member 1 is fitted into the shaft portion 8 to rotatably integrate both members 1 and 6, and in this state, the gas cock operating shaft a of the gas combustion device is inserted into the shaft hole 11 of the shaft portion 8. At the same time, insert the set screw 1 into the screw hole 12.
5 is screwed together and fixed to the shaft portion 8. Next, in this state, when the operating member 6 is rotated, the gas tank opens as in the conventional case, and at the same time, the ignition plug also operates and the gas is ignited.

The purpose of the mechanism of the present invention is to output a signal indicating the opening state when the gas stove is opened, so the fixed member 1 is connected to the operating member 6 so that the reed switch S is closed when the gas stove is opened.
While rotating the magnet M and reed switch S
At this position, the inner surface of the fixing member 1 is fixed to the outer casing b of the gas combustion device with an adhesive 16. It is convenient to use if a adhesive is applied.

Therefore, when the gas cock is opened by the gas shut-off operation, the reed switch S is closed by the magnet M to output a cock signal, which is guided to the control circuit in the gas cutoff device.

Effects of the invention As described below, according to the present application, since the fixed member and the operating member are rotatably integrated, the magnet provided on the operating member that interlocks with the gas control shaft of the gas combustion device and the The reed switch provided on the fixing member to be fixed can be positioned very easily, and the reed switch and magnet face each other at the fitting position between the holding member and the fitting recess. It has the advantage of being able to protect the reed switch from external effects, being able to be installed in existing gas combustion equipment without modification, and being extremely convenient to handle as the gas control operation is no different from conventional gas combustion equipment. .

[Brief explanation of drawings]

The drawings show an embodiment of the present application, and FIG. 1 is an inner view of the reed switch, FIG. 2 is a cross-sectional view of the same side, FIG. 3 is an inner view of the operating member, and FIG. The sectional view and FIG. 5 are side views showing the attached state. In the figure, 1 is a fixing member, 2 is a fitting hole, 3 is a holding part,
4 is a concave portion, 5 is a lead-out hole, 6 is an operating member, 7 is a fitting concave portion, 8 is a shaft portion, 9 is a knob portion, 10 is a concave portion, 11 is a shaft hole, S is a reed switch, and M is a magnet. be.

Claims (1)

[Scope of utility model registration request] A fitting hole is provided in the center, a thick holding part is provided on the outer surface concentrically with the fitting hole, and a recessed part is provided at the position of the holding part, and a reed switch is buried in this recessed part. A fixing member fixed to the outer casing of the gas combustion device with the lead wire led outward, a shaft part to be inserted into the fitting hole on the inner surface of the center part, and a knob part on the outer surface thereof. A fitting that protrudes from the shaft part and extends from the shaft part to the knob part and is provided with a shaft hole in which the gas control operating shaft is mounted, and that the inner surface is recessed concentrically with the shaft part and rotatably fits in the holding part. The reed switch has a concave portion, a concave portion is provided in the fitting concave portion, and a magnet is embedded in the concave portion. A small switch mechanism that is rotatably connected to the