JPH0356805Y2 - - Google Patents

Description

[Detailed description of the invention] <<Industrial application>> The present invention relates to a portable gas stove with a built-in small liquefied gas cylinder, and the present invention prevents the ignition of the burner when the soup saucer is placed upside down on the gas stove. To provide a device capable of preventing a liquefied gas cylinder from exploding due to abnormal heating.

<<Prior Art>> The basic structure of a portable gas stove with a built-in liquefied gas cylinder, which is the subject of the present invention, is as shown in FIGS. 3 is opened, a cylinder storage chamber 4 is provided in the side part thereof, a soup saucer 6 is placed on the saucer holder flange 5 around the saucer holder 3, a trivet 7 is fixed on the soup saucer 6, and the soup is poured into the container. A burner insertion hole 8 is made in the center of the saucer 6, a burner 10 is fixed in the casing 2, and the burner 10's mouthpiece 11 is made to protrude above the burner insertion hole 8, so that the gas regulator 12 and gas tank 14 are inserted into the cylinder storage chamber 4. The gas regulator 12 is connected to the burner 10 via the gas tank 14, and the fire control knob 16 of the gas tank 14 and the cylinder mounting/detaching operation tool 17 of the cylinder mounting/detaching device 15 are exposed to the outside of the casing 2 to accommodate the cylinder. In the cylinder connected state in which the liquefied gas cylinder GB is accommodated in the chamber 4 and the cylinder attachment/detachment operation tool 17 is inserted into the cylinder connection position A, the cylinder attachment/detachment device 1
5 connects the gas outlet valve 18 of the liquefied gas cylinder GB to the gas inlet 19 of the regulator 12 to open the valve, and conversely, in the cylinder detached state where the cylinder attachment/detachment operation tool 17 is returned to the cylinder detachment position B, the gas outlet valve 18 is opened. The valve is configured to be closed by being removed from the inlet 19.

In the conventional gas stove of this type, in order to make the packaging box compact and increase transportation efficiency, the soup tray 6 is placed upside down on the pan holder flange 5, and the trivet 7 is housed in the casing 2 when the packaging box is packed. Stored in,
It's on sale.

Therefore, some users may use the gas stove as it is out of the box, that is, with the soup saucer 6 turned upside down.

<<Problems to be solved by the invention>> However, in the gas stove of the above type, since the burner 10's crater 11 and the cylinder storage chamber 4 are close to each other, the pot etc. is placed in the crater 11 with the soup saucer 6 upside down. When a gas stove is used on top of the gas stove, the bottom of the pot blocks the flame from spreading upward, and the flame spreads flat and horizontally, so that the heat of the fire is properly transmitted to the cylinder storage chamber 4.

As a result, there was a considerable risk that the liquefied gas cylinder GB housed in the storage chamber 4 would be abnormally heated and explode, which was very dangerous.

With this invention, when the soup saucer is turned upside down,
A technical issue is to reliably prevent explosions of liquefied gas cylinders by eliminating heat transfer to them.

<<Means for Solving the Problems>> Means for solving the above problems will be described below using drawings corresponding to embodiments.

That is, in the portable gas stove with a built-in cylinder having the basic structure, the present invention includes a cylinder connection check device 20 that prevents the cylinder connection and removal device 15 from switching from the cylinder detachment state to the cylinder connection state. It is provided across the space C and the lower space D of the juice pan 6, and when the trivet is in use with the soup pan 6 facing upward and placed on the pan holder flange 5, the cylinder connection check device 20 controls the check operation of the soup pan 6. 21 and returned to the restraint release state E in which the cylinder attachment/detachment device 15 leaves the operating space C, allowing the cylinder attachment/detachment device 15 to switch to the cylinder connection state, but conversely, the juice receiving tray 6 is When the trivet is stored facing downward and placed on the plate support flange 5, the cylinder connection check device 2
0 is operated to the check state F in which the liquid valve 0 advances into the operating space C of the cylinder attaching/detaching device 15 under the action of the check operation part 21 of the juice pan 6, and the cylinder attaching/detaching device 15 is prevented from switching to the cylinder connecting state. The invention is characterized in that it is configured to do so.

<<Function>> When the juice pan 6 is placed in a downward position, the restraining operation part 21 of the juice pan 6 puts the cylinder connection restraining device 20 in the restraining state F, and the cylinder attachment/detachment device 15 is placed in the operating space C. The check device 2 switches the cylinder from the cylinder detached state to the cylinder connected state and operates.
0 to prevent the liquefied gas cylinder GB from being set in the cylinder storage chamber 4, or by pushing up and tilting a part of the juice pan 6 connected to the restraining operation part 21, the user can Inform them that they must be turned inside out.

Further, when the juice tray 6 is placed in the upward normal state, the check operation section 21 of the juice tray 6 releases the cylinder connection check device 20 from the check state F and removes the cylinder from within the operating space C of the cylinder attaching/detaching device 15. the cylinder attachment/detachment device 15 is smoothly switched from the cylinder detachment state to the cylinder connection state and operated;
Set gas cylinder GB in containment room 4.

《Effect of the invention》 When the juice pan is in an inverted downward position, the cylinder connection check device is activated by the check operation part of the juice pan, and the cylinder attachment/detachment device is switched from the cylinder detachment position to the cylinder connection position. Therefore, before ignition, the user is made to immediately notice that the soup saucer is upside down, and is made to turn it face up, thereby surely preventing an explosion due to abnormal combustion of the gas cylinder.

<<Example>> Hereinafter, an example of the present invention will be described based on the drawings.

Fig. 1 is a schematic perspective view of the vicinity of the cylinder attaching/detaching device showing the first embodiment, Fig. 2 is a longitudinal sectional front view of main parts of a portable gas stove with a built-in gas cylinder showing the same embodiment, and Fig. 3
The figure is a perspective view of the gas stove, and FIG. 4 is a plan view of the gas stove. In the portable gas stove 1 with a built-in gas cylinder, the right side of a casing 2 formed in the shape of a flat box is divided into left and right sides by a partition wall 25. The burner chamber 26 is formed on the left side, and the cylinder storage chamber 4 is formed on the right side.

The open opening above the burner chamber 26 of the casing 2 is defined as a plate socket 3, and the stepped portion around the plate socket 3 is defined as a plate plate flange 5. Place the soup saucer 6 on it.

A circular burner insertion hole 8 is provided in the center of the juice pan 6.
is opened, and four trivets 7 are fixed radially around the burner insertion hole 8, and the burner 10 is fixed in the center of the burner chamber 26, and the burner 10's mouthpiece 11 is inserted into the burner insertion hole 8. protrude upward from

In this case, when the soup tray 6 is placed upside down on the tray holder flange 5, the trivet 7 can be accommodated inside the burner chamber 26. Further, a cylinder holder 13 on which a liquefied gas cylinder GB can be placed in a horizontal position is provided at the lower part of the cylinder storage chamber 4, a gas regulator 12 and a gas tank 14 are each fixed to the front part thereof, and a partition wall 25 on the left side of the storage chamber 4 is installed. gas cylinder in
A cylinder attachment/detachment device 15 is attached which connects and disconnects the gas outlet valve 18 of the GB by pushing it into the inlet 19 of the gas regulator 12.

As shown in FIG. 1, the cylinder attaching/detaching device 15 includes a substantially L-shaped plate-shaped pushing tool 27 provided so as to be horizontally slidable along the partition wall 25, and this pushing tool 27.
A substantially inverted S-shaped cylinder attachment/detachment operation tool 17 connected through a slide hole 28 formed at one end, and a return spring 29 that biases the push tool 27 in the pushing release direction.
It consists of

The cylinder attachment/detachment operating tool 17 is swingably supported on a partition wall 25 about a fulcrum 30, and a long hole 31 and a slide hole 2 are formed horizontally in the partition wall 25.
The pushing tool 27 is supported by the cylinder attachment/detachment operation tool 17 via the stopper 32 in a state where the two are overlapped with each other,
When the cylinder attachment/detachment operating tool 17 is swung up and down, the pushing tool 27 is configured to slide horizontally.

Then, the fire control knob 16 of the gas tank 14 is fixed on the outside of the front wall 33 of the casing 2, and the tip operation part 1 of the cylinder attachment/detachment operation tool 17 is fixed to the left side thereof.
Protrude 7a.

Therefore, the functions of this cylinder attachment/detachment operation mechanism will be described as follows.

(1) As shown in Figure 1, liquefied gas cylinder GB
(for example, liquefied gas cylinders) in the cylinder storage chamber 4.
When the cylinder attachment/detachment operation tool 17 is pushed down in the direction of arrow L and inserted into the cylinder connection position A,
The cylinder attachment/detachment operation tool 17 swings in the direction of the arrow M about the fulcrum 30, and slides the pushing tool 27 along the slide hole 28 in the direction of the arrow N against the tension of the return spring 29 to remove the liquefied gas cylinder GB. An outlet valve 18 is connected to an inlet 19 of the gas regulator 12.

As a result, the burner 10 becomes ready for ignition.

(2) When the cylinder attachment/detachment operation tool 17 is pushed up in the direction of arrow H and returned to the cylinder removal position B, the cylinder attachment/detachment operation tool 17 swings in the direction of arrow K about the fulcrum 30, and the push tool moves along the slide hole 28. 27 is swung in the direction of arrow J in accordance with the tension of the return spring 29, and the liquefied gas cylinder GB is separated from the gas regulator 12 to be in a detached state.

On the other hand, a cylinder connection restraining device 20 is provided in the swing space C of the cylinder attachment/detachment operating tool 17, and configured to check the downward movement of the cylinder attachment/detachment operating tool 17.

The cylinder connection check device 20 consists of a check arm 33 and a support 34. The right half of the plate-shaped check arm 33 is made into a vertical pressing part 36, and the left half is bent horizontally to form a receiving part 37. Along with forming
The central part thereof is rotatably supported on a support 34 via a fulcrum 35, the pressing part 36 is advanced into the swinging space C of the cylinder attachment/detachment operation tool 17, and the receiving part 37 on the opposite side is connected to the plate. When placed in the trivet storage space in the burner chamber 26 located below the right front corner 38 of the socket 3, and when the juice tray 6 is placed upside down on the casing 2 and the trivet 7 is stored in the burner chamber 26. The step upper part 7a on the outer circumferential side of the trivet 7 is configured to abut on the receiving part 37.

Therefore, the function of the cylinder connection check device 20 will be explained.

(1) As shown in Fig. 2, when the trivet 7 is placed in the burner chamber 26 with the juice pan 6 facing downward,
The upper part 7a of the trivet 7 is the cylinder connection check device 20
The cylinder attachment/detachment operation tool 17 comes into contact with the receiving part 37 of
A cylinder connection check device 20 that blocks the operating trajectory from the cylinder connection position A to the cylinder separation position B.
The pressing portion 36 advances.

(2) If the user places a pot on the soup pan 6 and attempts to insert the cylinder attachment/detachment operation tool 17 into the cylinder connection position A without noticing that the soup pan 6 is upside down, the situation shown in FIG. As shown by the imaginary line, the cylinder attachment/detachment operation tool 17 pushes the pressing part 36 downward, and the restraining arm 33 moves in the direction of the arrow P around the fulcrum 35.
direction, the trivet 7 is lifted by the receiving part 37, and the pot is tilted upward to the right along with the soup saucer 6.
This will notify the user of the upside down state of the juice tray 6.

As a result, the soup saucer 6 is returned to its correct state and the pot is placed on the trivet 7, so even if the gas stove 1 is lit, the flame spreads horizontally and overheats the liquefied gas cylinder GB, causing it to liquefy. The danger of a gas cylinder causing an explosion can be prevented in advance.

FIG. 5 shows a second embodiment of the present invention, in which the right-side portion of the check arm 33 of the cylinder connection check device 20 is pivoted to the support 34 via the fulcrum 35, and the trivet 7 is housed in the burner chamber 26. In this state, the step upper part 7a of the trivet 7 pushes down the receiving part 37 and pushes down the pressing part 3 on the opposite side.
6 is rotated upward so that it comes into contact with the cylinder attachment/detachment operation tool 17 located at the cylinder detachment position B, and the distance 40 from the fulcrum 35 to the contact point of the trivet 7 is changed from the fulcrum 35 to the cylinder attachment/detachment operation tool 17. The distance is set to be significantly longer than the distance 50 to the contact point of the tool 17.

Therefore, when the juice tray 6 is stored downward, the trivet 7 presses the restraining arm 33 in the Q direction, and since its length from the center of rotation is large, {distance (40)>distance (50) }Since the moment in this direction becomes quite large, the cylinder attachment/detachment operating tool 17 is locked at the cylinder detachment position B by the pressing portion 36 of the check arm 33, and does not allow the liquefied gas cylinder GB to be set.

Conversely, when the soup tray 6 is placed in the normal upward position, the restraining arm 33 is released from the trivet 7 and moves to the fulcrum 3.
5, the cylinder attachment/detachment operating tool 17 can be easily inserted into the cylinder connection position A.

FIG. 6 (an enlarged view of the R part in FIG. 1) shows a third embodiment of the present invention, which is composed of a long projection on the burner chamber 26 side of the L-shaped tip 27a of the pushing tool 27. A cylinder connection check device 20 is formed, and the front end portion 20a of the check device 20 is configured to come into contact with the trivet 7 when the juice receiving tray 6 is placed downward.

In this configuration, when the juice tray 6 is placed upside down, the cylinder connection restraining device 20 comes into contact with the trivet 7 and locks the pushing tool 27, so that the cylinder attachment/detachment operation tool is linked to the pushing tool 27. 17 is fixed at the cylinder removal position B and is not allowed to be inserted into the cylinder connection position A.

On the other hand, when the juice pan 6 is placed upward, the trivet 7 is removed from the burner 26, so there is no problem with the sliding of the pushing tool 27, and therefore the cylinder attachment/detachment operating tool 17
can be easily inserted into the cylinder connection position A.

FIG. 7 shows a fourth embodiment of the present invention, in which the cylinder connection restraining device 2 is in a state of protruding from the cylinder storage chamber side end 27b of the pushing tool 27 toward the burner chamber 26 side.
0, and is configured so that the front end portion 20a of the restraining device 20 comes into contact with the trivet 7 when the juice receiving tray 6 is placed facing downward.

In this configuration, when the juice tray 6 is placed upside down, the cylinder connection restraining device 20 comes into contact with the trivet 7 and locks the pushing tool 27, so that the cylinder attachment/detachment operation tool is linked to the pushing tool 27. 17 is fixed at the cylinder removal position B and is not allowed to be inserted into the cylinder connection position A.

Conversely, if the soup saucer 6 is placed facing upward, the trivet 7
exits the burner chamber 26, the pushing tool 27
There was no problem with the sliding of the cylinder attachment/detachment operation tool 1.
7 can be easily inserted into the cylinder connection position A.

As described above, in the present invention, the cylinder connection restraining device 20 is provided across the operating space C of the cylinder attaching/detaching device 15 and the lower space D of the juice tray 6, so that the juice tray 6 is placed downward with respect to the casing 2. If the cylinder attachment/detachment device 15 is switched to the cylinder connecting position A, the check operation part 21 of the juice tray 6 is used to check the switching of the cylinder attachment/detachment device 15 to the cylinder connection position A.
It is not limited to the stepped upper part 7a of the trivet 7 shown in 4 to 4, but may also be a dedicated restraining protrusion separately provided on the upper surface of the soup saucer 6, for example.

[Brief explanation of the drawing]

The drawings show embodiments of the present invention; FIG. 1 is a schematic perspective view of the vicinity of a cylinder attaching/detaching device showing the first embodiment; FIG. Figure 3 is a perspective view of the gas stove, Figure 4 is a plan view of the gas stove, and Figure 5 is a perspective view of the gas stove.
The figure is a diagram corresponding to Figure 2 showing the second embodiment, Figure 6 is a plan view of the main part of the gas stove which shows the third embodiment and corresponds to the R part in Figure 1, and Figure 7 shows the fourth embodiment. 1st
It is a figure equivalent figure. 1...Portable gas stove with built-in liquefied gas cylinder,
2... Casing, 3... Dish socket, 4... Cylinder storage chamber, 5... Dish receiving tsuba, 6... Soup saucer, 7... Trivet, 8... Burner hole, 10... Burner, 11 …
... Crater, 12 ... Gas regulator, 14 ... Gas kottoku, 15 ... Cylinder attachment and removal device, 16 ... 1
4 fire adjustment knob, 17... cylinder attachment/detachment operating tool, 18... GB gas outlet valve, 19... 12 gas inlet, 20... cylinder connection check device, 21...
...Check control unit, GB...Liquefied gas cylinder, A...
17 cylinder connection position, B...17 cylinder detachment position, C...15 operating space, D...6 lower space, E...20 check release state, F...20 check state.

Claims (1)

[Scope of Claim for Utility Model Registration] A tray socket 3 is opened on the top surface of the casing 2 of the portable gas stove 1 which incorporates a liquefied gas cylinder GB, and a cylinder storage chamber 4 is provided in the side part of the casing 2, A soup saucer 6 is placed on the saucer holder flange 5 formed on the periphery, a trivet 7 is fixed on the soup saucer 6, a burner insertion hole 8 is made in the center of the soup saucer 6, and a burner 10 is inserted into the casing 2. At the same time, the burner 10's nozzle 11 is made to protrude above the burner insertion hole 8, and the gas regulator 12 is inserted into the cylinder storage chamber 4.
A gas tank 14 and a cylinder attachment/detachment device 15 are provided,
The gas regulator 12 is connected to the burner 10 via the gas tank 14, the fire control knob 16 of the gas tank 14 and the cylinder attachment/detachment operation tool 17 of the cylinder attachment/detaching device 15 are exposed to the outside of the casing 2, and the liquefied gas cylinder GB is accommodated in the cylinder storage chamber 4. In the cylinder connected state in which the cylinder attachment/detachment operation tool 17 is inserted into the cylinder connection position A, the cylinder attachment/detachment device 15 connects the gas outlet valve 18 of the liquefied gas cylinder GB to the regulator 12.
On the other hand, in the cylinder detached state where the cylinder attachment/detachment operation tool 17 is returned to the cylinder detachment position B, the gas outlet valve 18 is connected to the gas inlet 19 to open the valve.
In a portable gas stove with a built-in liquefied gas cylinder configured to close the valve by disconnecting from the cylinder, a cylinder connection check device 20 is installed between the cylinder attachment and detachment device 15 to prevent the cylinder attachment and detachment device 15 from switching from the cylinder detachment state to the cylinder connection state. When the trivet is in use, with the juice tray 6 facing upward and placed on the tray holder flange 5, the cylinder connection check device 20 is installed over the operating space C of the juice pan 6 and the lower space D of the soup pan 6. Check release state E in which the check operation unit 21 is released and the cylinder attachment/detachment device 15 leaves the operating space C.
, the cylinder attachment/detachment device 15 is allowed to switch to the cylinder connection state, but on the other hand, in the trivet storage state with the juice pan 6 facing downward and placed on the pan holder flange 5, the cylinder connection check device 15 is allowed to operate. 20 is operated to a check state F in which the cylinder attachment/detachment device 15 advances into the operating space C of the cylinder attachment/detachment device 15 under the action of the check operation portion 21 of the juice pan 6, thereby preventing the cylinder attachment/detachment device 15 from switching to the cylinder connection state. A portable gas stove with a built-in liquefied gas cylinder, characterized in that it is configured to: