JPH0431447Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a device for attaching and detaching a gas cylinder used in a cassette stove.

(Prior Art) This type of gas cylinder has a built-in approximately L-shaped siphon tube, and is placed horizontally so that the inner end of the siphon tube protrudes into the vaporized gas when in use, and for this purpose, a positioning notch is provided in the flange. In addition, it is necessary to push the valve nozzle in order to discharge the gas, and for this reason, conventional cassette stoves require an attachment/detachment lever and a link mechanism to press the gas cylinder from the rear end to the front. The cylinder exchange operation using this mechanism is complicated and may be operated forcibly, so there is a risk of damage or gas leakage.

(Technical Problem) The purpose of the present invention is to solve the above-mentioned problems.The purpose of this invention is to simplify the mechanism, make it easier to install and remove gas cylinders, and to enable reliable installation without fear of erroneous operation. It's about doing.

(Technical Means) In order to solve the above problems, the present invention provides a plurality of engagement holes 6 1 formed in the flange 5 of the gas cylinder 1 on the outer periphery of the socket 4 on the governor 3 side into which the valve nozzle 2 of the gas cylinder ₁ is fitted. , 6 ₂ . . . and has _guide protrusions 7 ₁ , 7 _{2 .} A groove 15 that engages with the edge is formed in the guide protrusions 7 ₁ , 7 ₂ , an engagement spring 10 that pulls the engagement plate 8 against the spring 9 of the valve nozzle 2 is provided on the outside of the receptacle 4 , and A handle 11 is protruded from the engagement plate 8 so as to be operable from the outside of the stove body 12, and a fixing means 20 for magnetically adhering to the body of the gas cylinder 1 is provided on the cylinder receiving part 14 of the stove body 12. be.

(Embodiment) To explain with reference to the drawings, a gas cylinder 1 has a valve nozzle 2 communicating with a siphon pipe 13, and the gas cylinder 1 has a valve nozzle 2 communicating with a siphon pipe 13, and the siphon pipe 13 faces upward as shown in FIG.
In the correct installation position, when the valve nozzle 2 is pushed against the valve closing spring 9, gas is discharged.
On the other hand, the governor 3 is arranged on one side of the stove main body 12, and has two guide protrusions 7 1 , upper and lower, around a cylindrical socket 4 that connects the valve nozzle 2 of the gas cylinder 1 set horizontally in the cylinder receiving part ₁₄ . An engagement plate 8 provided with 7 ₂ is provided so as to be movable back and forth.

The guide protrusions 7 ₁ , 7 ₂ engage with the two engagement holes 6 ₁ , 6 ₂ formed on the flange 5 of the gas cylinder 1, but only when set in the correct position do they engage with the guide protrusions 7 ₁ , 7 ₂ . The upper side 7 ₁ is wider than the lower side 7 ₂ so that the upper side 7 1 is wider than the lower side 7 2 so that it will not accidentally engage with the lower engagement opening 6 ₂ . Further, the engagement plate 8 has grooves 15 at the bases of the guide protrusions 7 ₁ and 7 ₂ into which the edges of the engagement ports 6 ₁ and 6 ₂ are engaged, and the stove body 1
It has a handle 11 that projects laterally at 2 and is formed to be externally operable. The amount of longitudinal operation d of the handle is set to the distance from the tip of the guide protrusion 7 ₁ to the groove 15 .

Furthermore, an engagement spring 10 is provided between the engagement plate 8 and the cap 17 which is fastened to the socket 4 by a screw 16.
is compressed, and the engagement plate 8 is pressed in the direction of the governor 3 by the engagement spring 10. The spring force of the spring 10 is set to be stronger than the spring force of the spring 9 of the valve nozzle 2.

Reference numeral 18 in each figure is a key groove for attaching the engagement plate 8 to the socket 4 so as to move back and forth without rotating, and is engaged with a key 19 formed on the outer periphery of the socket 4 in the front and back direction. Note that 20 is a magnet that is a fixing means for the gas cylinder 1, 21 is an appliance plug knob, 22 is a cover that covers the gas cylinder receiving part 14, and 23 is a burner.

(Operation of the invention) In the above configuration, to attach the gas cylinder 1, it is confirmed that the gas cylinder 1 is in the correct position by aligning the positions of the engagement ports 6 ₁ and 6 ₂ of the gas cylinder 1, and then the valve nozzle 2 is installed. While pressing the engagement plate 8 toward the cylinder with the handle 11 against the engagement spring 10, press the engagement opening 6 ₁ ,
6 ₂ into the guide protrusions 7 ₁ and 7 ₂ , and then rotate the gas cylinder 1 slightly to engage the flange 5 into the groove 15 (Figs. 4 and 3), so that the main body part is the magnet of the cylinder receiving part 14 . 20 to adsorb it.

When you release your hand from the gas cylinder 1 in this state, since the gas cylinder 1 is engaged with the flange 5, it is pulled towards the governor 3 by the force of the spring 10, and conversely, the valve nozzle 2 is pushed in, so the gas is released. It is discharged into the governor 3 and pushed by the reaction force of the springs 9 and 10, so that the engagement ports 6 ₁ and 6 ₂ and the guide projections 7 ₁ and 7 ₂ are stably engaged.

To remove the gas cylinder 1, turn the gas cylinder 1 slightly in the opposite direction to the guide protrusions 7 ₁ , 7 _{2 .}
The engagement ports 6 ₁ , 6 ₂ are removed from the springs 9 , 10 .
As a result, the valve nozzle 2 is also removed from the socket 4, and gas discharge is also stopped.

(Effect of the invention) Therefore, according to the invention, the gas cylinder 1 can be easily attached and detached by engaging the engagement ports 6 ₁ , 6 ₂ . . . with the guide protrusions 7 ₁ , 7 ₂ . Since it is impossible to attach the gas cylinder 1 unless the gas cylinder 1 is in the position, safety is high and there is no risk of erroneous operation. Since it is fixed by the magnetically absorbing fixing means 20, it is very stable in the set state, and since the conventional mechanism with a long link is not required, it contributes to cost reduction and weight reduction. The practical effect is remarkable.

[Brief explanation of the drawing]

The drawings show an embodiment of the cylinder attaching/detaching device for a cassette stove according to the present invention. FIG. 1 is a cross-sectional view of the main part, FIG. 2 is a plan view of the engaging body, and FIG. FIG. 4 is an enlarged explanatory view of the main part, and FIG. 5 is a front view of the flange. 1...Gas cylinder, 2...Valve nozzle, 3...
...Governor, 4...Socket, 5...Flange, 6
₁ , 6 ₂ ... Engagement port, 7 ₁ , 7 ₂ ... Guide projection, 8
...Engagement plate, 9...Valve nozzle spring, 10...
...Engagement spring, 11...Handle, 12...Stove body.

Claims (1)

[Scope of utility model registration request] A plurality of engagement holes 6 ₁ , 6 ₂ , .
An engagement plate 8 having guide protrusions _{7 1} , 7 _{2 .} Grooves 15 are formed in the guide protrusions 7 ₁ and 7 ₂ , an engagement spring 10 for drawing the engagement plate 8 against the spring 9 of the valve nozzle 2 is provided on the outside of the opening 4 , and a handle is attached to the engagement plate 8 . 11 protrudes from the outside of the stove body 12 so as to be operable, and furthermore, a fixing means 20 for magnetically adhering to the body of the gas cylinder 1 is provided on the cylinder receiving part 14 of the stove body 12. cylinder attachment/detachment device.