JPH058329B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a gas amount adjusting device that is provided with a needle shaft and a thermal power adjustment lever for adjusting the amount of gas supplied to a gas burner such as a gas table.

Conventional Structure and its Problems Originally, this type of gas tank device was structured as shown in FIGS. 1 and 2. That is, the needle shaft 1 is moved forward and backward while rotating, and the needle shaft 1 is
The structure is such that the amount of gas supplied to the gas burner 3 can be increased or decreased by opening and closing the gas passage 2a by moving the front end shaft portion 1a and the main body cylindrical portion 2 toward and away from each other. In this case, as shown in Fig. 2, the firepower adjustment lever 4 attached to the rear end of the needle shaft 1 is activated with just one movement, for example from upward to downward, to reduce the firepower, and the high flame is approximately 3000Kcal/h. From low heat is approx.
I could only narrow it down to 500Kcal/h. However, in actual use, the desired low heat is about 300 Kcal/h, and if the conventional fire power throttle configuration is suddenly reduced from high heat to low heat of 300 Kcal/h, the fire will go out and raw gas will leak, which is dangerous. There was a drawback.

Purpose of the Invention The present invention solves the above-mentioned conventional drawbacks, and aims to safely reduce the heat power to low heat without causing the flame to go out, and to reduce the calorie content of the conventional low heat. .

Structure of the Invention In order to achieve the above object, the gas amount adjusting device of the present invention includes a needle shaft that moves forward and backward by rotation to adjust the gas passing amount, a rotatable fire power adjustment lever connected to the needle shaft, and a fire power adjustment lever that is rotatable and connected to the needle shaft. An operation plate provided on the lever and movable against a spring, a stopper pin that the operation plate touches when the fire power adjustment lever is in the low heat position, and an operation plate that touches the stopper pin move as described above. According to
It has a fitting hole that rotates further from the low heat position and fits into the stopper pin, allowing you to safely reduce the firepower to low heat with two simple operations without extinguishing the flame, while reducing the calories of conventional low heat. This allows you to narrow down the aperture even lower.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below based on the drawings. Note that the same parts as in the conventional example described above are given the same reference numerals, detailed explanations are omitted, and different parts will be mainly explained.

In FIGS. 3 to 5, reference numeral 4 designates a heating power adjustment lever having one end fixed to the rear end of the needle shaft 1 and an L-shaped attachment portion 4a formed by bending the tip at a right angle. A mounting hole 4a and a slit 4c are provided in the mounting portion 4a of the firepower adjustment lever 4 in a straight line in the vertical direction. Reference numeral 5 designates a U-shaped holding plate 5, which has protrusions 5a at both ends that fit into the mounting holes 4b and are bent and fixed, and a slit 5b in the middle opposite the slits 4c. Reference numeral 6 denotes an operation plate, which after being inserted into the slit A4c of the firepower adjustment lever 4, is inserted into the slit B5b of the holding plate 5.
A stopper pin fitting hole 6a and an extraction hole 6b for accommodating the spring 7 are provided. spring 7
is placed in the extraction hole 6b, and both ends are fitted into the protrusion 6c formed in the extraction hole 6b, and one end is inserted into the mounting portion 4a.
This prevents the operation plate 6 from falling out from the slit A4c. 8 is stopper pin 9
This is the receiving plate in which is formed.

Hereinafter, the effects of the above configuration will be explained. When the operation plate 6 located at the high flame position in FIG. 4 is operated downward as shown by the arrow and the fire power adjustment lever 4 is rotated, the tip shaft portion 1a of the needle shaft 1 approaches the main body cylinder portion 2 and the fire power is reduced. To go. When the operation plate 6 is further lowered, it hits the stopper pin 9 and the firepower becomes weak. At this point, if you want to make the heat even weaker than the low heat, you can lightly press the operation plate 6 in the axial direction against the spring 7 and then lower it. The matching hole 6a engages with the stopper pin 9, and gas passes only through the smallest hole 1b of the needle shaft 1, resulting in a slow-burning state. At this time, the operating plate 6 is pushed in the axial direction by the elastic force of the spring 7 and does not come off the stopper pin 9.

Next, if you want to turn the heat from simmering to high, move the operation plate 6 upwards, and the stopper pin 9 will come out of the fitting hole 6a.
Rotate the firepower adjustment lever 4 counterclockwise at
The needle shaft 1 moves away from the main body cylindrical portion 2, resulting in a strong flame state.

Effects of the Invention As described above, according to the present invention, the following effects can be obtained.

(1) Two simple operations on the control panel prevent sudden changes from high heat to low heat, so you can safely reduce the fire to low heat without extinguishing the flame or risking raw gas leaking.

(2) It is convenient for practical use because it can reduce the calories to lower than that of conventional low heat.

[Brief explanation of drawings]

Fig. 1 is a sectional view of the main part showing a conventional gas amount adjustment device, Fig. 2 is a side view of the same, Fig. 3 is a sectional view of the main part showing an embodiment of the present invention, and Fig. 4 shows the same state in use. The side view shown in FIG. 5 is an exploded perspective view. DESCRIPTION OF SYMBOLS 1...Needle shaft, 1a...Front end shaft part of the needle shaft, 1b...Minimum hole part, 2...Body cylinder part, 3...
...Gas burner, 4...Firepower adjustment lever, 4a...
Mounting part, 4b...Positioning hole, 4c...Slit A, 5...U-shaped holding plate, 5a...Positioning projection, 5b...Slit B, 6...Operation plate, 6a
...Fitting hole, 6b...Extraction hole, 7...Spring, 8...
Receiving plate, 8a...L-shaped bent part, 8b...fitting hole,
9...Stotsupapin.

Claims (1)

[Claims] 1. A needle shaft that moves forward and backward by rotation to adjust the amount of gas passing; a rotatable fire power adjustment lever connected to the needle shaft; and an operation plate provided on the fire power adjustment lever and movable against a spring; A stopper pin that the operating plate contacts when the fire power adjustment lever is in the low-heat position, and a fitting hole that rotates further from the low-heat position and engages with the stopper pin due to the movement of the operating plate that is in contact with the stopper pin. Gas amount adjustment device.