JPH0587403U - Device for preventing incorrect loading of gas cylinders in gas appliances - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent deformation or damage to the operation part or the instrument side when the gas cylinder is forcibly loaded in an incorrect posture. [Structure] In the gas appliance provided with the posture defining means 3 for locking the gas cylinder B in a fixed posture, the posture defining means 3 is provided.
Is not in the correct locking state, and the gas locking device 5 provided on the cylinder fixing lever 4 for locking the gas cylinder B by locking the elastic locking part 5 that elastically deforms when the gas cylinder B approaches the rear side. Erroneous loading prevention device for gas cylinders.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a device for preventing a gas appliance using a gas cylinder from being damaged due to incorrect loading of the gas cylinder.

[0002]

[Prior Art]

 This type of gas cylinder contains a siphon pipe for ejecting vaporized gas from the nozzle, and if the nozzle is pushed in without the gas cylinder being properly set, liquid gas may leak and an accident may occur. A notch is provided on the flange of the gas cylinder so that it can be engaged with the engaging element provided on the instrument side so that it can be used in the correct set state.

However, there are cases where the device is used without paying the above-mentioned attention or without being aware of it at all. For example, a conventional gas cylinder mounting mechanism has a structure as shown in Japanese Utility Model Publication No. 57-52479 in which a detachable lever is moved back and forth. Because you can move. However, since the operation is performed in an unreasonable state, there arises a problem that the portion locked at the rear end of the cylinder is deformed and damaged.

[0004]

[Problems to be solved by the device]

 The present invention has been made in view of the above points, and the problem is that the gas or liquid gas cannot be ejected unless the gas cylinder is in the correct set state, and even if the gas cylinder is forcibly set even if it is not in the correct set state. It is to prevent the operation part or the instrument side from being deformed or damaged.

[0005]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention provides a gas instrument in which a posture-defining means 3 for locking the gas cylinder B in a fixed posture is provided in a storage chamber 2 of the gas cylinder B provided in the instrument body 1. When the gas cylinder B is correctly set, it is locked to the bottom portion b of the gas cylinder B, and a cylinder fixing lever 4 for fixing the cylinder B is attached to the instrument body 1 so as to be movable back and forth by an external operation. The means 3 is not locked, and the cylinder fixing lever 4 is provided with an elastic pressing portion 5 which is elastically deformed when the cylinder bottom portion b comes rearward.

[0006]

【Example】

 A description will be given below with reference to the drawings. FIG. 1 shows an overall view of a gas stove, and a storage chamber 2 for a gas cylinder B is provided in the front-rear direction on one side of the instrument body 1. Reference numeral 10 denotes a governor, which is located at the front end of the accommodation chamber 2 and has a connection port portion into which the tip nozzle of the gas cylinder B is inserted.

The posture regulating means 3 regulates the gas cylinder B in such a posture that the siphon tube in the gas cylinder B is directed upward. The gas cylinder B is engaged with the notch 3a and the engaging element 3b when the gas cylinder B is correctly set (FIG. 3), and is not engaged unless the gas cylinder B is correctly set (FIG. 4).

The cylinder fixing lever 4 is arranged so as to be movable back and forth along the inside of the instrument of the gas cylinder B, and has a rear end of a locking end portion 6 having a substantially L-shaped plane for locking the bottom portion b of the gas cylinder B. And is connected at the front end to the operation lever 11 attached to the instrument body 1 for external operation. Reference numeral 12 denotes a frame provided on the main body along the moving direction of the cylinder fixing lever-4, which is a member for supporting the cylinder B so as to be movable back and forth.

A guide port 14 is provided at the rear end portion of the frame 12 through which the rear end 13 of the cylinder fixing lever 4 is passed and locked so as to be movable back and forth, and the rear end 13 of the lever is directed toward the accommodation chamber 2. To the locking end 6 which is bent at a substantially right angle.

The locking end portion 6 is a portion that pressurizes the bottom portion b of the gas cylinder B. However, there is a risk of deformation and damage due to cylinder setting operation due to erroneous loading, so an elastic pressurizing portion 5 is provided to prevent this. Be done. The elastic pressing portion 5 has one end fixed to the back side of the locking end portion 6, an engagement receiving portion 15 for the cylinder bottom b provided on the front side, and the other free end 8 of the locking end portion 6. It has a configuration arranged in a window 7 formed at the rear end 13 of the lever immediately before.

According to the above-mentioned configuration, the gas cylinder B is pressurized and set by the elasticity of the elastic pressurizing portion 5 (see FIG. 6). However, according to the regulations, “a direct spring is attached to the joint between the container and the combustor. It should not be used. ", So that resistance means 9 for mechanically supporting the elastic pressurizing portion 5 is provided (FIGS. 5 and 7).

In the example of FIG. 5, a step portion 17 that engages with the lower end 16 of the elastic pressing portion 5 is provided on the lower side of the window 7, and in the example of FIG. 7, the elastic pressing portion 5 retracts. A hypotenuse 18 is provided below the window 7 to increase the contact resistance. Therefore, according to these structures, the gas cylinder B is not supported only by the spring, that is, the elastic pressurizing portion 5, so that there is no legal problem.

The operation lever 11 is pivotally supported on the frame 12 by a support shaft 20 so as to be vertically swingable, and is attached to the front end of the cylinder fixing lever 4 so as to be movable in a long hole 19 in the frame front-rear direction. The attached engagement pin 21 is engaged with a cam hole 22 formed in the operation lever 11 for moving the fixed lever 4 in the front-rear direction by swinging in the vertical direction. Numeral 23 is a positioning notch provided following the end of the cam hole 22 for moving the fixed lever 4 forward to set it at the set position, and numeral 24 is a spring for urging the operating lever 11 in the releasing direction. It is hung between the hook portions 25 and 26 formed on the frame 12. Numeral 27 is a knob for ignition and power control, and numeral 28 is a burner.

Therefore, when the notch 3a of the gas cylinder B is directed upward, the gas cylinder B is attached by aligning the position with the engagement element 3b on the governor side, and the operation lever 11 is operated, the cylinder fixing lever 4 advances and the locking end. The bottom of the cylinder b is pressed by the part 6 without any discomfort, and the correct setting is completed. However, as shown in FIG. 4, when the operation lever 11 is operated without engaging the posture defining means 3, the gas cylinder B is moved rearward, so that there is a feeling that the forward movement of the elastic pressurizing portion 5 is blocked. The amount of forward movement of the cylinder fixing lever-4 is absorbed by the elastic deformation of the elastic pressurizing unit 5.

[0015]

[Effect of the device]

 Since the present invention is constructed and operates as described above, even if the gas cylinder B is fixed by the fixing lever 4 without being in the correct set state, its fixing force presses the elastic pressing portion 5. Only by doing so, the cylinder fixing lever 4 and the like are not deformed, and the gas cylinder B does not open because it is not in the correct set state, and the situation of liquid gas leakage does not occur.

[Brief description of drawings]

FIG. 1 is a perspective view of the entire gas appliance.

FIG. 2 is a perspective view of the device of the present invention.

FIG. 3 is a plan view of a gas cylinder that is correctly set.

FIG. 4 is a plan view of an incorrectly set gas cylinder.

FIG. 5 is a front view showing a first example of resistance means.

FIG. 6 is a front view showing a second example of the above.

FIG. 7 is a front view showing a third example of the same.

[Explanation of symbols]

 1 Instrument Main Body 2 Storage Chamber 3 Posture Controlling Means 4 Cylinder Fixing Lever 5 Elastic Pressing Part 6 Locking End 7 Window 8 Free End 9 Resistance Means

Claims (3)

[Scope of utility model registration request] 1. A gas instrument having a gas cylinder B provided in a housing chamber 2 of the instrument body 1 provided with a posture defining means 3 for locking the gas cylinder B in a fixed posture. A cylinder fixing lever 4 that locks the bottom portion b of the gas cylinder B and that fixes the cylinder B is attached to the instrument body 1 so as to be movable back and forth by an external operation, and the posture defining means 3 does not lock due to the incorrect loading of the gas cylinder B. A gas cylinder erroneous loading prevention device, characterized in that an elastic pressurizing portion (5) which is elastically deformed when the cylinder bottom portion (b) is moved rearward is provided on the cylinder fixing lever (4). 2. The cylinder fixing lever 4 has a substantially L-shaped locking end portion 6 that can be locked to the bottom portion b of the gas cylinder B, and has a window 7 immediately in front of the locking end portion 6. The other free end 8 of the elastic pressurizing portion 5 which is fixed to the locking end portion 6 and which can be locked to the cylinder bottom portion b is movably provided in the window 7. Erroneous loading prevention device for gas cylinders in gas appliances. 3. When the free end 8 of the elastic pressurizing part 5 is locked to press the gas cylinder B in a correct set state of the gas cylinder B, and an excessive force is applied to the elastic pressurizing part 5 due to erroneous loading The gas cylinder erroneous loading prevention device according to claim 2, wherein a resistance means (9) for disengaging from the free end (8) is provided at the window (7) of the cylinder fixing lever (4).