JPH059691B2 - - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention] The present invention relates to a gas control device for a gas combustor used in general households, and its object is that the conventional push-and-turn type gas control device The structure was such that the lock could not be released unless the knob was pushed and rotated, which caused the inconvenience of having to make two movements, pushing and turning, to release the lock.
The object of the present invention is to provide a gas control device that is convenient to use by having a structure that allows the lock to be released only by turning the gas control device.

[Structure of the invention]

The gas control device for a gas combustor of the present invention includes a rotary ignition knob, a gas knob that incorporates an igniter and a safety valve that interlock with the knob shaft of the ignition knob, a return lever that interlocks with the knob shaft, and a gas knob that incorporates a safety valve. A lock lever whose lower end contacts the circular arc arm of the return lever and rotates around a fulcrum, and a firepower adjustment which moves in a direction substantially perpendicular to the direction of rotation of the lock lever to engage and disengage from the upper end of the lock lever. The device includes a lever, a return spring that biases the firepower adjustment lever in the direction in which the lock lever locks, and a gas pressure variable device that adjusts the gas pressure by a linear lever that interlocks with the firepower adjustment lever. The pressure variable device is configured such that the gas pressure becomes strong when the ignition knob is in the stop position, and the gas pressure can be adjusted only when the ignition knob is in the open position. It is characterized by

Embodiments of the present invention will be described with reference to the drawings. 1 is a gas inlet, 2 is a gas tank containing an igniter, a safety valve, etc., 3 is a rotary ignition knob, 4 is a gas pressure variable device, and 5 is a rotatable cylindrical portion. 6 is a linear lever that drives the cylindrical portion 5 of the gas pressure variable device 4;
It works in conjunction with the firepower adjustment lever 7. Numeral 8 is a lock lever whose upper end engages with and disengages from the lock portion 7a of the fire power adjustment lever 7, and whose lower end slides into arcuate arm 10a of the return lever 10 that interlocks with the ignition knob shaft 11, and whose fire power is adjusted around the fulcrum 8a. It rotates in a direction substantially perpendicular to the rotation direction of the adjustment lever 7. Reference numeral 9 denotes a return spring that biases the lock lever 8 in the direction in which the fire power adjustment lever 7 is locked. 12 is a gas outlet (to a burner), 13 is an ignition electrode, 14 is a thermocouple, and 15 is a burner.

Next, its effect will be explained. In the above structure, when the ignition knob 3 is rotated in the direction of arrow a, a safety valve in the gas tank 2 opens, and gas passes from the gas inlet to the gas outlet 12 and enters the gas burner 15.
At this time, a spark is generated in the ignition electrode 13 by the igniter in the gas tank 2, and the ignition electrode 13 is ignited. gas burner 1
A thermoelectromotive force is generated in the thermocouple 14 by the combustion heat of 5, which keeps the safety valve in the gas tank 2 open. Thereafter, even if the rotational force of the ignition knob 3 is released, combustion continues.

When the return lever 10, which rotates in conjunction with the knob shaft 11, rotates in the direction of arrow a due to the rotation of the ignition knob 3, the lock lever 8, whose lower end abuts the circular arc arm 10a of the return lever 10, becomes a fulcrum. It rotates about 8a in the direction of arrow b (FIG. 1), and its upper end 8b disengages from the locking portion 7a of the firepower adjustment lever 7 to release the lock of the firepower adjustment lever 7. Therefore, the firepower adjustment lever 7 is at the pivot point 7b.
It can be rotated freely around the center. In this state, move the rear end 7c of the firepower adjustment lever 7 in the direction of arrow c (Fig. 2).
When the linear lever 6 rotates about the fulcrum 6a in the direction of the arrow d, the cylindrical portion 5 of the variable gas pressure device 4 rotates in the direction of the arrow e. The gas pressure variable device 4 has a known structure that utilizes a governor, and adjusts the gas pressure by varying the pressure of its back pressure spring by rotating the cylindrical portion 5. In short, by rotating the heating power adjustment lever 7 in the direction of the arrow c, the combustion of the gas burner 15 can be made weak.

As described above, when the ignition knob 3 is turned to the left (direction a), the fire power adjustment lever 7 is unlocked and can be slid freely, thereby controlling the combustion amount of the gas burner 15. Adjustment is free. Next, when extinguishing the gas burner 15 from a weak combustion state, when the ignition knob 3 is turned back in the direction opposite to the arrow a (closed direction), the return lever 10 is interlocked with this, and the spark adjustment lever 7 is The lock lever 8 slides in the same direction (the direction of the stronger firepower), and the lock lever 8 is lowered along the arcuate arm 10a by the return spring 9. When the ignition knob 3 reaches the stop position, the fire power adjustment lever 7 is locked by the lock lever 8, and the fire is extinguished at the high fire power position.

〔Effect of the invention〕

Since the present invention has the above configuration and operation, it has the following effects. (1) The fire power adjustment lever can be locked and released simply by turning the ignition knob, and the amount of gas burned can be freely adjusted, making operation simpler than conventional push-and-turn type ignition knobs. and is convenient to use. (2) The ignition knob is configured to return to the ignition position, and the fire power adjustment lever is in the strong position at the time of ignition, so there are fewer ignition mistakes, the thermocouple rises quickly, and burner combustion is quickly stabilized. (3) In a gas cooker that supplies gas for ignition simply by turning the lever, there is a risk of raw gas leaking out if the ignition does not occur, and this is particularly dangerous when the fire power adjustment lever 7 is turned. However, in the present invention, the fire power adjustment lever is firmly locked by a lock lever that rotates in a direction substantially perpendicular to the direction of movement of the fire power adjustment lever, and cannot be rotated unless the ignition knob is rotated. Therefore, since gas cannot be supplied by the fire power adjustment lever, the outflow of gas without ignition is prevented, which is safe.

[Brief explanation of drawings]

FIG. 1: A perspective view of an embodiment of the gas control device of the present invention. FIG. 2: A perspective view of FIG. 1 viewed from the direction of arrow S. DESCRIPTION OF SYMBOLS 1... Gas inlet, 2... Gas cock, 3... Ignition knob, 4... Gas pressure variable device, 5... Cylindrical part, 6... Linear lever, 7... Fire power adjustment lever, 8... Lock lever, 9... Return spring, 10... Return lever, 1
DESCRIPTION OF SYMBOLS 1... Ignition knob shaft, 12... Gas outlet, 13... Ignition electrode, 14... Thermocouple, 15... Burner.

Claims (1)

[Claims] 1. A rotary ignition knob, a gas knob with a built-in igniter and safety valve that interlocks with the knob shaft of the ignition knob, a return lever that interlocks with the knob shaft, and a lower end of which is connected to the circular arc arm of the return lever. A lock lever that abuts and rotates around a fulcrum, and a lock lever that moves in a direction substantially perpendicular to the rotation direction of the lock lever,
The gas pressure is adjusted by a fire power adjustment lever that engages and disengages from the upper end of the lock lever, a return spring that biases the fire power adjustment lever in the direction in which the lock lever is locked, and a linear lever that interlocks with the fire power adjustment lever. It consists of a gas pressure variable device,
The gas pressure variable device is configured such that the gas pressure becomes strong when the ignition knob is in the stop position, and the gas pressure can be adjusted only when the ignition knob is in the open position. A gas control device for a gas combustor, characterized in that: