JPH0741303U - Gas container erroneous loading prevention device - Google Patents

Abstract

(57) [Summary] [Purpose] To cancel the operating force above the set value and prevent deformation and damage of the gas container and its holding mechanism. [Structure] An operating member 11 for pressing a gas container and an operating member 12 for operating the gas container are rotatably and longitudinally movably supported by a support shaft 14 passing through an elongated hole 13 extending in the front-rear direction. . When the operating force of the operating member 12 is within the set range, the operating member 12 is rotated around the support shaft 14 to engage with the arc-shaped engaging hole 15 provided in the operating member 12. When the operating force exceeds the set value, the pressing member 11 is pulled forward, and the operating member 12 is bent by the operating force so that the operating member 12 moves toward the pressing member. Main spring 1 that presses forward
7 is provided between the support shaft 14 and the instrument body side member.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a device for preventing erroneous loading of a gas container in a gas appliance using a small gas container.

[0002]

[Prior art]

 Some gas appliances of this type are equipped with a mechanism for holding the rear end of the gas container by pushing it forward. As disclosed in Japanese Utility Model Publication No. 57-52479, this mechanism is used to push down the detachable lever. It has a structure that allows the pressing piece engaged with it to slide by operation. However, in the conventional configuration in which the operating force of the attaching / detaching lever appears as the sliding force of the pressing piece, if the gas container is not in the correct loading position, the gas container and a part of the holding mechanism may be deformed or damaged. .

[0003]

[Problems to be solved by the device]

 The present invention has been made by paying attention to the above points, and its problem is that an operating force exceeding the pressing force required for normal loading of a gas container is applied to the gas container holding mechanism and the gas container. If there is a risk of being damaged, the operation force above the set level is canceled to prevent deformation or damage of each part.

[0004]

[Means for Solving Problems]

 In order to solve the above-mentioned problems, the present invention is a device for preventing an excessive operating force from being transmitted from the operating member 12 to the pressing member 11 when the gas container is erroneously loaded, and has a long hole 13 extending in the front-rear direction. The operating member 12 is rotatably and longitudinally movably supported by a supporting shaft 14 passing therethrough. When the operating force of the operating member is within a set range, the operating member 12 is rotated around the supporting shaft 14, and the operating member 12 is rotated. When the operating force exceeds the set value, the pressing member 11 is pulled forward through the engaging shaft 16 engaged with the arcuate engaging hole 15 provided in the operating member 12, and the operating member 12 bends. The main spring 17 that elastically presses the operating member 12 forward through the support shaft 14 so that the tool moves toward the pressing member is provided between the support shaft 14 and the instrument body side member.

[0005]

【Example】

 The drawing shows an embodiment relating to a gas cylinder built-in type gas stove, and the gas container B is used by being attached to a housing portion 20 provided on a side portion of the equipment body 10. The gas container B is loaded by opening the cover 23, retracting the pressing member 11, and then fitting the valve nozzle E at the front end into the receiving port of the governor G. At this time, the position of the notch C formed in the flange A of the gas container B is aligned with the protrusion D provided around the receiving port, and the siphon pipe equipped in the gas container faces upward and is positioned in the vaporized gas. Do so (see Figure 2). This is normal loading.

The pressing member 11 is attached to the side surface of the substrate 24 installed in the instrument body 10 so as to slide in the front-rear direction and pulls the rear end of the gas container B forward. A coiled spring 25 is applied. The pressing member 11 is supported at its front part by an engaging shaft 16 described later that is engaged with a straight hole 26 in the front part of the substrate, and at the rear part by an L-shaped pressing end 28 engaged with a window hole 27 in the rear part of the substrate. Is supported. A leaf spring 29 is in contact with the rear end of the gas container B.

A portion of the operating member 12 closer to the pressing member than the support shaft 14 is bent in an arc shape, and an elongated hole 15 as a cam groove for drawing the pressing member 11 is formed in the arc shape. is there. The long hole 15 has a locking groove 30 at the front end for locking the engagement shaft 16 at the final stage when the operating member 12 is operated (see FIG. 5B).

The operating member 12 slides the pressing member 11 in the front-rear direction in order to attach and detach the gas container B, and is rotatably supported by the support shaft 14 on the front portion of the substrate 24. The support shaft 14 is attached in front of an arcuate engagement hole 15 opened in the operation member 12, and is passed through a long hole 13 extending in the front-rear direction formed at the frontmost portion of the base plate 24. Since it is attached, the operating member 12 can be rotated and moved back and forth.

In order to place the support shaft 14 at the frontmost position of the elongated hole 13, the main spring 17 elastically presses the support shaft 14. The illustrated main spring 17 is composed of a coil spring, one end of which is supported by a spring receiver 21 provided on a base plate 24 which is a device body side member, and the other end of which is in contact with a spring receiver 22 provided on a shaft holding plate 18. I am letting you. Therefore, the support shaft 14 receives the elastic force of the main spring 17 by the arc-shaped shaft pressing groove 19 formed on the front edge of the shaft pressing plate 18.

The main spring 17 supports the support shaft 14 with an elastic force capable of rotating the operation member 12 about the support shaft 14 when the operation force is in a set range when the operation member 12 is pushed down. , Thereby having a strength that allows the pressing member 11 to be drawn through the engaging shaft 16 engaged with the engaging hole 15 and to press the rear end portion of the gas container B with a predetermined pressing force. . In each drawing, 31 is a front locking end of the spring 25, which is provided on the body side, and 32 is a rear locking end of the spring 25, which is provided on the pressing member side. Further, 33 is a tool stopper pick, and 34 is an operation end of the operation member 12.

In the device of the present invention, in a normal loading state in which the notch C of the gas container flange A is aligned with the protrusion D on the governor side and the valve nozzle E is inserted into the governor receiving port, the operating member 12 is mainly operated. The spring 17 can be elastically pressed and rotated to press the rear end of the gas container B forward through the pressing member 11 (FIG. 5 (b)). On the other hand, when the gas container B is to be loaded at the position where the notch C deviates from the protrusion D, the pressing member 11 cannot move forward even if the operating torque of the operating member 12 increases, and the torque is set to the set value. When the pressure exceeds the upper limit, the main spring 17 bends, the support shaft 14 retracts, and the pressing member 11 cannot be drawn even if the operating member 12 rotates (Fig. 5 (c)). Do not press vessel B.

[0012]

[Effect of device]

 Since the present invention is configured and operates as described above, it is supported when an operating force exceeding the pressing force required for normal loading of the gas container may be applied to the gas container and its holding mechanism. Since the shaft 14 retracts and the forward movement of the pressing member 11 reduces the amount, and the operation force exceeding the set value is not transmitted, it is possible to prevent deformation and damage to each part, and it is possible to prevent erroneous operation. This has the effect of preventing other accidents due to loading.

[Brief description of drawings]

FIG. 1 is a perspective view of a gas appliance incorporating an incorrect loading prevention device according to the present invention.

FIG. 2 is a perspective view for explaining an embodiment of the device of the present invention.

FIG. 3 is a side view of the same.

FIG. 4 is a plan view of the same.

FIG. 5A is a side view of the state before setting the gas container. (B) The side view of the state where the gas container was normally loaded. (C) The side view of the state which loaded the gas container by mistake.

Claims (2)

[Scope of utility model registration request] 1. A pressing member 11 for pushing forward a rear end of a gas container which is detachably loaded into an instrument body, and a pressing member 11 which is slidable in the front-rear direction so that the gas container can be attached and detached. Is a device for preventing an excessive operating force from being transmitted from the operating member 12 to the pressing member 11 at the time of erroneous loading, by the support shaft 14 passing through the elongated hole 13 extending in the front-back direction. The operation member 12 is rotatably and longitudinally movably supported, and when the operation force by the operation member is within the set range, the operation member 12 is rotated around the support shaft 14 to provide an arc shape on the operation member 12. The pressing member 11 is pulled forward through the engaging shaft 16 engaged with the engaging hole 15 of the above, and when the operating force exceeds the set value, the operating member 12 is bent by the operating force to move the operating member 12 toward the pressing member. The operation member 12 is moved forward via the support shaft 14 so as to move. The main spring 17 for elastically pressing the support shaft 14
A device for preventing erroneous loading of a gas container, wherein the device is provided between the device and a member on the instrument body side. 2. A shaft pressing groove 19 for pressing the support shaft 14 at the front edge of the shaft pressing plate 18, one end of the main spring 17 being supported by the instrument body side and the other end being in contact with the shaft pressing plate 18. The erroneous loading prevention device for a gas container according to claim 1, further comprising: