JPH0412320Y2 - - Google Patents

Description

[Detailed description of the invention] Technical field This invention is a system for simultaneously connecting multiple gas cylinders, which is equipped with a cylinder setting means for simultaneously connecting a plurality of gas cylinders facing each other to a plurality of cylinder connection ports provided in a gas supply path to a gas burner. Regarding use-type cassette stoves.

Prior Art Simultaneous use of multiple gas cylinders is advantageous in that sufficient combustion heat with increased calories can be stably obtained. However, if the cylinder is used with a cylinder connection port that is not connected to a gas cylinder, even if a normally-closed check valve is installed that closes when the cylinder is not connected, it may become damaged due to repeated connections to the gas cylinder. or worn out, and there is a risk of leakage of the supply gas from the connected gas cylinder. Even the slightest possible danger of this must be avoided.

Also, even if the required number of gas cylinders are loaded, if they are out of the correct loading position, the gas cylinder will not be connected depending on the operation to set the gas cylinder, but other gas cylinders in the correct loading position will be connected. Sometimes I put it away. This is sometimes done intentionally so that only a part of the charged gas cylinder is used and the rest is not used as a spare gas cylinder. However, in these cases, there is a risk that the gas from the connected gas cylinder will leak out from the cylinder connection port to which the gas cylinder is not connected as described above, and if the gas cylinder is loaded but not connected and is not used, the gas may leak out. If this is not done, there is a danger that it will be heated by the heat of combustion, and the temperature and pressure will rise, leading to an explosion.

Purpose: This invention ensures that if a gas cylinder is not connected to one of the plurality of cylinder connection ports, all the gas cylinders will be unable to be set and the stove itself will become unusable, ensuring sufficiently stable combustion. Another object of the present invention is to provide a cassette stove that can use multiple gas cylinders at the same time and can avoid the above-mentioned dangers.

Configuration A cylinder setting means is provided for simultaneously pressing and connecting a plurality of corresponding gas cylinders to a plurality of cylinder connection ports provided in a gas supply path to a gas burner, and the setting operation of the cylinder setting means is prevented in a free state. The gas cylinder is located in a position where the gas cylinder is properly opposed to each of the cylinder connection ports and is completely retracted from the position in response to being loaded so as to properly face each cylinder connection port, and is characterized by being provided with a cylinder setting regulating means that completely evacuates the gas cylinder from the position to enable the cylinder setting operation. It is.

Function: Normally, the cylinder setting regulating means is in a free state and is in a position to prevent the setting operation of the cylinder setting means. Therefore, the cylinder setting means cannot be operated as it is, and unnecessary operations are prevented, and by not being able to perform the setting operation, it is possible to inform the user that the gas cylinder is not loaded.

When gas cylinders are loaded, only those gas cylinders that are properly opposed to the cylinder connection port to be connected are used by the cylinder set regulating means. The cylinder setting means is completely evacuated from the position where the setting operation of the cylinder setting means is prevented by receiving the action of each gas cylinder properly facing each cylinder connection port, so that the cylinder setting means is not affected by the cylinder setting regulating means. All the gas cylinders loaded so as to face each cylinder connection port properly can be set in the connected state at the same time.

Therefore, if at least one gas cylinder corresponding to each cylinder connection port is not loaded, or if it is loaded but not facing properly, the set operation will not be performed, and the gas from the connected gas cylinders will not be connected. It is possible to avoid the risk of leakage from a cylinder connection port that is not connected to the cylinder connection port, or that a gas cylinder that is loaded but not connected to the cylinder connection port will be heated and pressurized by combustion heat and explode.

Embodiment To explain the embodiment shown in FIGS. 1 to 4, two gas cylinders 5 connected to two cylinder connection ports 3 and 4 provided in a gas supply path 2 are connected to a gas burner 1. It is shown as a so-called double cylinder type that supplies gas at the same time. The burner 1 is installed in a burner chamber 8 having an opening 7 at the top of a flat box-type stove body 6, and the cylinder 5 can be taken in and out of a cylinder chamber 10 adjacent to the burner chamber 8 and having an opening 9 at the top and sides. is loaded into. The gas supply path 2 has one end connected to the gas/air mixing pipe 1a of the burner 1, and the other end connected to the cylinder connection ports 3, which are lined up left and right in the cylinder chamber 10.
4 are provided.

In the middle of the gas supply path 2, a gas pressure regulator 11 and a device pot 12 are sequentially provided from the cylinder connection ports 3 and 4 side toward the burner 1 side.
The entire structure can be roughly divided into a cylinder connection port part, which consists of a straight gas supply path 2 with cylinder connection ports 3 and 4 formed on the back side of both ends, a gas pressure regulator part, and a gas supply path connected to a gas burner. The tool block 13 is formed by die-casting separately into the tool block parts with 2 parts, and these molded parts are integrally connected.
A screw 15 is fixed at a position near the front operation panel 14 in the cylinder chamber 10.

The cylinder chamber 10 further includes each cylinder connection port 3,
Cylinder setting means 16 are provided for simultaneously connecting two cylinders 5 which are properly opposed to each other. The cylinder setting means 16 includes cylinder pressing pieces 17a facing each cylinder connection port 3, 4.
A cylinder press plate 17 having a cylinder press plate 17b at the rear end is slidably provided so that the cylinder press pieces 17a and 17b can move forward and backward with respect to the cylinder connection ports 3 and 4, and the cylinder set has an operation part 18a facing the front of the operation panel 14. The cylinder pressing plate 17 is moved forward and backward by the arc rotation operation of the lever 18, and the gas cylinder 5 loaded in the cylinder chamber 10 is properly opposed to each connection port 3, 4.
are simultaneously press-connected to the opposing connection ports 3 and 4, and the pressure on the cylinder 5 is released to release the connection.

The cylinder pressing plate 17 is applied to the lower surface of a pair of left and right cylinder positioning recesses 19 formed at the bottom of the cylinder chamber 10, and is pressed into the cylinder chamber 10 through a sliding window 20 provided at the rear bottom of the left and right recesses 19. a main body ₁₇₁ having a hooking piece 17c that faces and slidably hooks on the bottom surface of the recess 19;
The cylinder chamber 10 is opened through a sliding window 21 provided between the front ends of the left and right recesses 19 at the bottom of the cylinder chamber 10.
It consists of a passive plate 172 that is connected ₂₂ to the main body connecting piece 17d facing inward and slides on the bottom surface of the cylinder chamber 10, and the cylinder pressing piece 17a is bent upward at the rear end of each hooking piece 17c. has been done.

As a result, the gas cylinder 5 loaded into the cylinder chamber 10 fits into the recess 19 and settles down.
The cylinder connection ports 3 and 4 which face each other and each cylinder pressing piece 17a are naturally positioned to appropriately face each cylinder connection port 3 and 4.

The passive plate 17 ₂ of the cylinder pressing plate 17 includes each cylinder pressing piece 17a, 17b and each cylinder connection port 3,
4, is moved forward and backward in the gap 23 between the instrument block 13 and the bottom surface of the cylinder chamber 10, and is fitted with the mounting leg 24 for the screw fixing 15 of the instrument block 13. The passive plate 1 has a window 25 to transfer the operating force of the cylinder set lever 18.
7 ₂ Even if it is received by the bent passive piece 26 on one side, the cylinder pressing plate 17 as a whole can be moved smoothly forward and backward without twisting or wobbling, and the two gas cylinders 5 can be smoothly connected and disconnected at the same time. ing.

An intermediary lever 30 is provided on the surface of the lid plate 27 attached to the opposite side of the gas pressure regulator 11 from the burner 1 in the instrument block 13, to which the cylinder set lever 18 is pivotally mounted 28 and whose upper end is pivotally mounted 29. , the lower end of the intermediary lever 30 is connected to the passive piece 26 of the connecting plate 17 ₂ with a pin 31 . The cylinder set lever 18 is connected to an intermediary lever 30 by pins 33 and 34 at intermediate portions thereof through links 32. With this, the cylinder set lever 1
8 between the cylinder set release position shown by the solid line and the cylinder set position shown by the imaginary line in _FIG . The cylinder 5 is moved forward and backward to connect or disconnect by receiving an operating force through the cylinder.

The cylinder pressing plate 17 is attached to the cylinder pressing release position side shown by the solid line in _FIG . The biasing force is applied to the cylinder set lever 18 via the intermediate lever 30 and the link 32. Link 32 using this
A line of action O connecting the center of rotation on the intermediate lever 30 and the center of rotation on the cylinder set lever 18 is a dead point connecting the center of rotation on the intermediate lever 30 of the link 32 and the center of rotation on the cylinder set lever 18. Depending on whether it is above or below the line P, the cylinder set lever 18 is biased clockwise or counterclockwise by the spring 36, and moves to the cylinder set release position indicated by the solid line where it abuts the first stopper 37. The cylinder set lever 18 is alternatively stabilized at the cylinder set position of the imaginary line that contacts the second stopper 38, and switching between these two positions is performed by operating the cylinder set lever 18 so that the line of action O crosses the dead point line P toward the desired position. achieved. The cylinder press plate 17 has a cylinder connection port 3,
Since the return force of the check valve provided at 4 acts as a force for pushing out the cylinder and as a restoring force for the nozzle 5a of the cylinder 5, there is no significant difference even if the spring 36 is not activated.

A cylinder setting prevention plate 40 is provided on the front surface of the instrument lock 13 and is biased by a spring 39 so that a locking end 40a faces the cylinder setting operating path of the cylinder setting lever 18. The back of the operating knob 41 of the pot 12 has a passive piece 40b that faces an actuator 41a that is integrally molded, and while the operating knob 41 is in the extinguishing position, the passive piece 40b is activated by the actuator 41a to release the spring 39.
The locking end 40a is moved out of the operation path of the cylinder set lever 18 to enable the cylinder set operation, and when the operation knob 41 is in the instrument lock open position, the passive piece 40b is activated. By being released from the push by the child 41a, the locking end 40a is positioned on the operating path of the cylinder set lever 18, thereby preventing the cylinder setting operation with the cock 12 open. As a result, the gas cylinder 5 is connected while the pot 12 is open, and the inconvenience that raw gas unexpectedly flows out is eliminated.

When the operating knob 41 is operated to the open position when the cylinder is set, the cylinder setting prevention plate 4
0 is only in standby while being in contact with the side surface of the cylinder set lever 18 which is in the cylinder setting position due to the bias of the spring 39.

A piezoelectric element type automatic ignition mechanism 42 is attached to the appliance pot 12 for igniting in conjunction with its opening operation, and 43 is a spark plug connected to the mechanism 42. A heat shield plate 44 is provided between the burner chamber 8 and the cylinder chamber 10 to prevent excessive combustion heat from affecting the gas cylinder 5 to be loaded. Heat shield plate 4
4 is a burner chamber top plate 6a, and a burner chamber side end plate 6 of the vessel.
It is integrally formed on one side of the top plate 6a of the upper plate 45 forming the upper plate 45, and also forms a seating step portion 47 for the free edge of the lid 46 of the cylinder chamber 10. The vessel bottom plate 6c, the vessel front plate 6d, and the vessel rear plate 6e are integrally formed by a lower plate 48, and the lower edge of the lid 46 is pivotally supported 49 on the vessel bottom plate 6c. 50 is a leg of the vessel body 6.

The cylinder setting operation of the cylinder setting means 16 is enabled or disabled depending on whether or not a part of the main body ₁₇₁ of the cylinder pressing plate 17 is filled with gas cylinders 5 properly facing each of the cylinder connection ports 3 and 4. A cylinder set regulating means 51 is assembled as shown in FIG. The cylinder set regulating means 51 consists of a pair of cylinder set regulating levers 54 and 55 whose proximal ends are pivotally supported by a shaft 53 to a support piece 52 cut and raised downward from a part of the main body ₁₇₁ . Each of the levers 54 and 55 has a tip end facing in the opposite direction to the left and right, and has a cylinder set operation restriction formed in the escape windows 56 and 57 of the main body ₁₇₁ and the left and right cylinder receiving recesses 19 of the cylinder chamber 10 at each tip end. an upward passive piece 54a that projects through windows 58 and 59 into each recess 19 into which the cylinder 5 is loaded;
55a, and the levers 54, 55 are biased by springs 60, 61, respectively, so that the respective passive pieces 54a, 55a always protrude into the recess 19.

The passive pieces 54a, 55a have wide portions 54a ₁ , 55
Narrow portions 54a ₂ and 55a ₂ are formed at the upper ends of a ₁ and 55a 2 , respectively. On the other hand, the cylinder set operation regulation window 5
Reference numerals 8 and 59 denote wide windows 58a and 59a through which the passive piece wide portions 54a ₁ and 55a ₁ can be exposed and retracted, and the cylinder set movement direction side, that is, the front side of the container body 6, which accompanies the main body 17 ₁ of the passive pieces 54a and 55a. , and continuous narrow slits 58b and 59b are formed in a narrow state in which the narrow width portions 54a _{2 and} 55a ₂ of the passive side can be inserted and the wide width portions 54a 1 and 55a ₁ of the passive side cannot be inserted.

Each cylinder set regulation lever 54, 55 is arranged so as to be properly opposed to each cylinder connection port 3, 4.
When the book cylinder 5 is loaded as shown by the imaginary line in FIGS. 2 and 3, the passive pieces 54a and 55a are pushed down by the cylinder 5 and rotated downward as shown by the imaginary line in FIG. At least the wide width portions 54a ₁ and 55a ₁ of the passive side are connected to the cylinder set operation regulating window 5.
Died from 8.59. Therefore, even if the cylinder is set using the cylinder setting lever 18 and the cylinder pressing plate 17 is slid toward the front side of the container body 6 together with the cylinder setting regulating levers 54 and 55, the passive piece 54
a and 55a are moved by engaging their narrow portions 54a ₂ and 55a ₂ into narrow slits 58b and 59b,
This enables the cylinder setting operation.

In the unlikely event that the gas cylinder 5 is not loaded, or even if it is loaded, it is not properly facing the cylinder connection ports 3 and 4 and is floating or shifted sideways, the cylinder set regulation levers 54 and 55 will The passive pieces 54a and _55a are not pressed down by the cylinder 5 and are in _the solid line position in FIGS. It's in. Therefore, when the cylinder set is operated and the main body ₁₇₁ is slid toward the front side of the container body 6 together with the cylinder set regulating levers 54 and 55, the passive half wide portion _54a1 is inserted into the narrow slit of the wide windows 58a and 59a. 58b, 59b engages with both side edges of the continuous parts to prevent movement of the main body ₁₇₁ ,
Prevent cylinder set operation. This is prevented if either of the cylinder setting regulation levers 54, 55 remains in the solid line position, and the setting operation cannot be performed unless there is a loaded cylinder 5 properly facing one of the cylinder connection ports 3, 4. become.

Around each cylinder connection port 3, 4, a planar U-shaped baffle plate 62 is fixed. If you try to load the cylinder 5 with the end opposite or at an angle, it will interfere with the cylinder 5 fitting into the chamber 10, the cylinder 5 will protrude significantly from the chamber 10, and the lid 46 will not close tightly. Do it like this. This prevents dangerous situations such as using the cylinder 5 properly facing one of the cylinder connection ports 3 and 4, and leaving the cylinder 5 in an unused loaded state, that is, in a spare cylinder storage state, by not properly facing the other cylinder 5. Gives a warning about the condition. Even if the cylinder set is attempted to be operated despite this warning, it will be prevented by the cylinder set restricting means, but this is a simple safety measure up to that point. Reference numeral 63 designates an upward positioning protrusion of the cylinder (in a state in which the inner end of the gas deriving pipe in the cylinder faces upward for deriving vaporized gas), and engages with a notch 64a of a positioning flange 64 around the cylinder nozzle 5a.

The embodiment shown in FIG.
A pair of cylinder set regulating levers 71, 72 are pivotally mounted 73 on the bottom surface of the cylinder using the mounting legs 24, and the passive pieces 71a, 72a are biased by springs 74, 75 so as to face the cylinder loading section from the inside. Also shown is a cylinder set regulating means 78 positioned by stoppers 76 and 77. This stoppa 7
In the normal state where lever 7 is positioned at 6 and 77, lever 7
Reference numerals 1 and 72 position the other end locking pieces 71b and 72b together with the locking end 40a of the cylinder set prevention plate 40 on the setting operation path of the cylinder set lever 18, so that the cylinder cannot be set as it is.

Each lever 71, 72 has a passive piece 71a, 7
Only when the gas cylinder 2a is pushed in the direction of the arrow a by a gas cylinder loaded properly facing the cylinder connection port, the locking pieces 71b and 72b are moved away from the setting operation path of the cylinder set lever 18. It is evacuated in direction b to enable cylinder setting operation. Arrow c indicates the retraction direction of the cylinder set blocking plate 40.

In each of the above embodiments, only a lever-type cylinder setting regulating means is shown, but a sliding member may also be used, and the movement of the member pushed by the gas cylinder may be indirectly transmitted to a member that prevents the cylinder setting operation. It is also possible, and various specific configurations can be considered. Furthermore, if two or more gas cylinders are to be used at the same time, this also falls within the scope of this invention, and if there is no loaded cylinder that properly faces one connection port, the cylinder setting operation can be prevented. .

Effect: A cylinder setting means is provided for simultaneously pressing and connecting a plurality of corresponding gas cylinders to a plurality of cylinder connection ports provided in a gas supply path to a gas burner, and the setting operation of the cylinder setting means is prevented in a free state. Since the gas cylinder is located in a position where the gas cylinder is properly opposed to each cylinder connection port and is loaded, a cylinder setting regulating means is provided which fully evacuates from the position and enables the cylinder setting operation. By being in a free state, the means is in a position to prevent the setting operation of the cylinder setting means, but when a gas cylinder is loaded, it is activated only from the gas cylinder properly opposed to the cylinder connection port to be connected. Only when the gas is from each gas cylinder properly facing all of the cylinder connections will the cylinder setting means be completely retracted from the position that prevents the setting operation.

Therefore, if at least one gas cylinder corresponding to each cylinder connection port is not loaded, or if it is loaded but not facing properly, the set operation will not be performed, and the gas from the connected gas cylinders will not be connected. It is possible to avoid the risk of leakage from a cylinder connection port that is not connected to the cylinder connection port, or that a gas cylinder that is loaded but not connected to the cylinder connection port will be heated and pressurized by combustion heat and explode. Furthermore, by blocking the setting operation, it is possible to notify the user of the condition of forgetting to load the gas cylinder or of improper loading.

[Brief explanation of the drawing]

Fig. 1 is a plan view of an embodiment with some parts exposed and seen, Fig. 2 is a longitudinal front view, Fig. 3 is a side view of the main parts in cross section, and Fig. 4 is FIG. 5 is a perspective view of the main part of the cylinder setting means showing a state in which the cylinder setting regulating means is provided, and FIG. 5 is a perspective view of the main part of another embodiment. 1... Gas burner, 2... Gas supply path, 3, 4
...Cylinder connection port, 5...Gas cylinder, 6...Stove body, 10...Cylinder chamber, 19...Cylinder positioning recess, {17...Cylinder pressing plate, 18...
Cylinder set lever, 30...Intermediate lever, 32
... link, 36 ... spring, }16 ... cylinder setting means, {54, 55 ... cylinder setting regulation lever, 54a, 55a ... passive piece, 58, 59 ...
...Cylinder setting regulation window, 60, 61...Spring,}
51... Cylinder set regulation means, {71, 72...
...Cylinder set regulation lever, 71a, 72a...
Passive piece, 71b, 72b...Locking piece, 74, 75
... Spring, 76, 77 ... Stopper} 78 ... Cylinder setting regulating means.

Claims (1)

[Claims for Utility Model Registration] (1) A cylinder setting means is provided for simultaneously pressing and connecting a plurality of corresponding gas cylinders to a plurality of cylinder connection ports provided in a gas supply path to a gas burner, and the gas cylinder is free. the cylinder setting regulating means, which is in a position to prevent the cylinder setting means from setting the gas cylinder, and completely retracts from the position in response to the gas cylinders being loaded properly facing each of the cylinder connection ports to enable the cylinder setting operation; A cassette stove that can use multiple gas cylinders at the same time. (2) The cylinder setting regulating means is composed of a plurality of members biased so that the passive part always faces the cylinder loading part, and controls the cylinder setting operation of the cylinder setting means depending on whether the passive part is pushed by the loaded gas cylinder. A cassette stove that can simultaneously use multiple gas cylinders according to claim 1, which is configured to enable or disable gas cylinders. (3) The cassette cooker for simultaneous use of multiple gas cylinders according to claim 1 or 2, wherein the cylinder setting regulating means acts on one member of the cylinder setting means or on a member interlocking therewith. (4) The cassette cooker for simultaneous use of multiple gas cylinders according to claim 3, wherein the cylinder setting regulating means is provided to act directly on the setting operation member of the cylinder setting means. (5) The cylinder setting regulating means pivots a plurality of cylinder setting regulating levers each having a passive part facing the cylinder loading section to a cylinder pressing plate common to a plurality of cylinders along the bottom plate of the stove body of the cylinder setting means. The passive part is biased so that it faces the cylinder loading part inside the stove body through the cylinder set operation regulation window at the bottom of the stove body, and the passive part is released from interference with the cylinder set operation regulation window and operates the cylinder only when it is pressed down by the loaded cylinder. A cassette stove that can use multiple gas cylinders at the same time according to claim 3 of the utility model registration claim, which is configured so as not to interfere with the operation of the gas cylinders. (6) The cylinder setting regulating means includes a plurality of cylinder setting regulating levers each having a passive part facing the cylinder loading part, the cylinder setting operation regulating part of which faces within the cylinder setting operation movement locus of the cylinder setting member to prevent the cylinder setting operation. A plurality of gas cylinders according to claim 3, wherein the regulation part of the regulation lever is moved out of the movement trajectory only when the passive part is pushed by the loaded gas cylinder. Simultaneous use type cassette stove.