JPH0248726Y2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field This invention is a simple gas stove that connects a gas cylinder to a gas supply path by operating a cylinder set lever, in which the gas cylinder is set to the gas supply state and the setting is released. This invention relates to a gas cylinder setting device.

PRIOR ART Pressing the gas cylinders together involves relatively large resistance. It is somewhat difficult to do this by operating a small cylinder set lever that is compatible with simple gas stoves that are usually commercially available.
Various cylinder setting devices have been employed, such as the one known from Japanese Patent No. 163,900. However, most of them have simple mechanisms such as those mentioned above, and there is a strong sense of resistance when actually operating them, and they have the inconvenience of having to be operated by holding down the device body with one's hand.
Moreover, the support of the cylinder set lever in the cited example is unstable, causing rattling and making it difficult to operate. Therefore, this is a particular problem in the case of a type in which multiple gas cylinders are connected.

Purpose The purpose of this invention is to provide a gas cylinder setting device for a simple gas stove that can solve the above-mentioned problems.

Structure/Function In order to achieve the above object, this invention includes a cylinder pressing slide member that presses and connects a gas cylinder to a cylinder connection port by advancing and retracting, and releases the pressing;
It has a cylinder set lever that is externally operated and whose base is pivotally supported by the instrument block of the gas supply path to which the gas cylinder is connected, and the cylinder pressing slide member and the cylinder set lever are connected to the cylinder press slide member and the cylinder set lever whose upper end is pivotally supported by the instrument block. A lever-link mechanism is formed by connecting an intermediate lever whose lower end is connected to the cylinder pressing slide member and a link connecting the intermediate part of the intermediate lever and the intermediate part of the cylinder set lever to move the cylinder pressing sliding member forward and backward. , this lever
The link mechanism is biased toward the side that moves the cylinder pressing slide member backward, and a line of action connecting the connecting points at both ends of the link is formed between the position where the cylinder pressing slide member of the cylinder set lever advances and the position where the cylinder pressing slide member is moved back. It is characterized by being provided with an operating fulcrum that coincides with the axial fulcrum of the set lever.

With this configuration, the cylinder pressing slide member is operated by the lever link mechanism, and the cylinder connecting operation, which requires relatively large resistance, can be easily performed by reducing the resistance by combining the transmission ratios of the various parts of the lever link mechanism.

In addition, each lever member of the lever link mechanism is pivotally supported on an instrument block of a gas supply path to which a gas cylinder is connected, and the instrument block is a solid body, and each lever member of the lever link mechanism is mounted on one of the instrument blocks. Each lever member is supported by a shaft and operates on its own device block, so that the operational reaction force is offset and absorbed, and each lever member that receives a strong reaction force when connecting a cylinder is maintained in an appropriate positional relationship and firmly held. At the same time, it is possible to prevent a strong reaction force from acting on the gas stove. Furthermore, the cylinder set lever has an operational dead center in the middle of the operation position where the cylinder pressing slide member is moved to the advanced position and the retracted position. As long as it crosses over, it can be operated to the desired side.

Embodiment The embodiment shown in FIGS. 1 to 5 is a so-called high-calorie combustion type in which gas is simultaneously supplied to a gas burner 1 from two gas cylinders 3 connected to its gas supply path 2. something is shown. The gas burner 1 is installed in a burner chamber 6 having an opening 5 at the top of a flat box-type stove case 4, and the gas cylinder 3 is installed in the burner chamber 6.
The cylinder chamber 8 is adjacent to the cylinder chamber 8 and has an opening 7 on the top and side surfaces, and is housed in a cylinder chamber 8 that can be taken in and taken out freely. Gas supply path 2
has one end connected to the gas/air mixing pipe 1a of the burner 1, and two cylinder connection ports 9 facing into the cylinder chamber 8 at the other end.

In the middle of the gas supply path 2, a gas pressure regulator 10 and a device pot 11 are sequentially provided from the cylinder connection port 9 side toward the burner side, and the entire gas supply path 2 can be roughly divided into the cylinder connection port 9 section. The instrument block 16, which is die-cast separately into a gas pressure regulator 10 section and an instrument block 11 section, and which integrally connects these molded sections, is fixed to a position near the stove case front operation panel 12 in the cylinder chamber 8 with screws 15. has been done.

The cylinder chamber 8 further includes a cylinder pressing slide member 13 having a pair of cylinder pressing pieces 13a at its rear end facing each cylinder connection port 9.
3a is slidably moved forward and backward with respect to the cylinder connection port 9, and is moved forward and backward by the arc rotation operation of the cylinder set lever 14, which has an operating member 14a facing the front of the operation panel 12, and is stored in the cylinder chamber 8. The gas cylinder 3 is pressed and connected to the cylinder connection port 9, and the pressure on the cylinder 3 is released to cancel the connection.

The cylinder pressing slide member 13 is applied to the lower surface of a pair of left and right cylinder receiving recesses 8a formed at the bottom of the cylinder chamber 8, and a slide window 8b opened at the bottom behind the left and right recesses 8a.
A plate body 1 facing into the cylinder chamber 8 from above and having a hook piece 13b that is slidably hooked on the bottom surface of the recess 8a.
3 ₁ and the cylinder receiving recess 8a at the bottom of the cylinder chamber 8.
A connecting plate 13 _{2 is connected 49 to a connecting piece 13 c of a plate 13 1} formed to face the inside of the cylinder chamber 8 through a sliding window 8 c opened between each front end, and slides on the bottom of the cylinder chamber _8. A cylinder pressing piece 13a is formed by bending upward at the rear end of each hooking piece 13b.

As a result, the gas cylinder 3 stored in the cylinder chamber 8 fits into the cylinder receiving recess 8a and settles down, and is naturally positioned between the cylinder connection port 9 and the cylinder pressing piece 13a which face each other.

Each cylinder connection port 9 of the gas supply path 2 is arranged at approximately equal left and right positions from the center of the cylinder chamber 8 together with the cylinder receiving recess 8a, and the gas pressure regulator 10
is set at approximately the middle position of each cylinder connection port 9,
The appliance pot 11 is connected to the burner 1 side of the gas pressure regulator 10 so as to be located approximately on the same axis as the cylinder connection port 9 on the burner 1 side.

On the other hand, the connecting plate 13 ₂ of the cylinder pressing slide member 13 is located on the intermediate line of each cylinder pressing piece 13a and also on the intermediate line of each cylinder connection port 9, and is located on the cylinder connection port 9 portion of the gas supply path 2. , the gas pressure regulator 10 part and the tool pot 11 part are moved forward and backward in the gap 17 between the instrument block 16 and the bottom of the cylinder chamber 8, and the relief window 18 for the screw fixing part 15 of the instrument block 16 is opened. In addition, there are reinforced peripheral walls 1 on both sides and the tip.
3d is formed by bending.

A cover plate 19 attached to the side of the gas pressure regulator 10 opposite to the burner 1 side in the instrument block 16
The cylinder set lever 14 is attached to the cylinder shaft 20 on the surface.
An intermediary lever 22 is provided which is pivotally connected at its upper end 21, and the lower end of the intermediary lever 22 is pin-connected 23 to the reinforcing peripheral wall _13d of the connecting plate 132 on the side opposite to the burner 1 side. The cylinder set lever 14 is connected to the intermediate lever 22 by a link 24 that connects intermediate portions thereof with pins 25, 2.
6 has been done. As a result, when the cylinder set lever 14 is rotated in an arc between the cylinder set release position shown by the solid line and the set position shown by the imaginary line shown in FIGS. , press and connect the gas cylinder 3 stored in the cylinder chamber 8, which is moved back and forth between the cylinder press release position indicated by the solid line and the cylinder press connection position indicated by the imaginary line, via the intermediary lever 22, to the cylinder connection port 9;
Moreover, the connection is canceled by releasing the pressure.

The cylinder pressing slide member 13 is connected to its connecting plate 1.
A restoring spring 27 acting between the tip reinforcing peripheral wall 13d of 3 ₂ and the cut-and-raised piece 8d at the bottom of the cylinder chamber 8 biases the cylinder toward the cylinder pressure release position shown by the solid line, and the biasing force is as follows. Intermediary lever 22, link 24
The cylinder set lever 14 is reached through the cylinder set lever 14. Utilizing this, a line of action O connecting the center of movement of the link 24 on the intermediate lever 22 and the center of rotation on the cylinder set lever 14 is set to The cylinder set lever 14 is biased clockwise or counterclockwise by the spring 27 depending on whether it is above or below the dead point line P connecting the center of rotation.
It is selectively stabilized at either the cylinder unset position indicated by the solid line in contact with the stopper 28 or the cylinder set position indicated by the imaginary line in contact with the second stopper 29.
To change the position, the line of action O is the dead point line P.
Move the cylinder set lever 1 so that it crosses over to the desired position.
This is achieved by operating 4. The cylinder pushing force due to the restoring force of the check valve 48 provided at the cylinder connection port 9 and the restoring force of the nozzle 3a of the cylinder 3 also act on the member 13 as a restoring force, and there is no need to act on the spring 27. No problem.

Cylinder shaft 20 to which the cylinder set lever 14 is pivotally attached
is incorporated into the gas pressure regulator 10, and the regulator 1
When the primary gas pressure increases abnormally before passing through 0,
The cam shaft 31a of the reset cam 31 is inserted into the abnormal pressure safety mechanism 30 that blocks the flow of the secondary gas through the regulator 10 to the instrument pot 11 (the fifth
The camshaft 31a and the cylinder set lever 14 are connected 49 so as to rotate together through the integral rotation lever 32 on the camshaft 31a, and each time the cylinder set lever 14 is operated to the cylinder set position, abnormal pressure is ensured The cam 31 is activated by the abnormal pressure safety mechanism 3 regardless of whether the mechanism 30 is in the pre-operation state or not.
0, the abnormal pressure safety mechanism 30 is always in the state before activation in the cylinder set state,
It is designed to operate reliably when abnormal pressure occurs. 3
3 is an abnormal pressure shutoff valve of the abnormal pressure safety mechanism 30, 34
35 is a reversing spring that closes the shutoff valve 33 at abnormal pressure, and 35 is an urging spring for interlocking the valve 33 with the reversing spring 34.

A cylinder set prevention slide plate 37 is provided on the front surface of the instrument block 16 and is biased by a spring 36 so that a locking end 37a faces the operating path of the cylinder set lever 14.
7 is a passive piece 37 facing an actuator 38a integrally formed on the back side of the operating knob 38 of the instrument handle 11.
b, and while the operation knob 38 is in the extinguishing position, the passive piece 37b is pushed by the actuator 38a against the spring 36, and the locking end 37a is retracted out of the operation path of the cylinder set lever 14, and the cylinder is set. On the other hand, when the operating knob 38 is in the instrument lock-open position, the passive piece 37b is released from the push by the actuator 38a, so that the locking end 37
a is located on the operation path of the cylinder set lever 14 to prevent cylinder setting operation when the cock 11 is open.

When the operating knob 38 is operated to the open position in the cylinder set state, the slide plate 37 is only kept in standby by being in contact with the cylinder set lever 14 at the cylinder set position due to the bias of the spring 36.

The gas pressure regulator 10 is located approximately on the center line between the left and right cylinder connection ports 9, but as shown in FIG. A gas supply path 2 which is opened at a position closer to the cylinder connection port 9 on the side opposite to the burner 1 side than the cylinder connection port 9 of the gas intake port 39 and the cylinder connection port 9 on the burner 1 side.
A constriction part 40 is provided midway inside to appropriately restrict the flow of gas from the cylinders near the burner 1 where liquefied gas easily vaporizes, so that the liquefied gas in the two cylinders 3 that are set and used at the same time is approximately It ensures that it is consumed evenly.

A piezoelectric element type automatic ignition mechanism 41 is attached to the tool pot 11, which ignites the device in conjunction with its opening operation. 42 is a spark plug connected to it. A recess 51 into which the base of the lever operating part 14a fits is formed on both sides of the cylinder set lever protruding slit 50 of the operating panel 12.
This prevents a from swinging due to lateral pressure and prevents damage due to lateral pressure.

Reference numeral 43 denotes a juice tray that covers the opening 5 of the burner chamber 6, and is removably fitted into the mouth edge step 44 of the opening 5, and has a windshield frame-like portion 43a higher than the top surface of the stove case 4 and the burner 1. This makes it difficult for the flame of burner 1 to be blown out by wind. Opening 5
The cylinder 3 is inserted between the burner 1 and the burner chamber 6.
In order to prevent the rim from being fitted, the lip step 4
A baffle edge 5a is formed that extends moderately from 4 to the burner 1 side. The shape and number of the baffle edges 5a can be changed in various ways. 45 is an opening/closing lid of the cylinder chamber 8, 46 is its pivot, and 47 is a leg of the stove case.

Effects According to this invention, since the cylinder pressing slide member is operated by the lever link mechanism, the cylinder connecting work, which requires relatively large resistance, can be made easier by reducing the resistance by combining the transmission ratio of each part of the lever link mechanism. I can do it. Furthermore, each lever member of the lever/link mechanism is pivotally supported by the instrument block of the gas supply path to which the gas cylinder is connected, and the instrument block is a solid body, and each lever member of the lever/link mechanism is mounted on one of the instrument blocks. Each lever member is supported by a shaft and operates on its own device block, so that the operational reaction force is offset and absorbed, so each lever member that receives a strong reaction force when connecting a cylinder can be firmly held in its proper positional relationship. Because it can prevent strong reaction force from acting on the gas stove,
To allow a cylinder connection operation to be performed smoothly over a long period of time without rattling or interference in the gas stove itself and each member. Further, the cylinder set lever has an operation dead center in the middle of an operation position for moving the cylinder pressing slide member to an advanced position and a retracted position,
As long as it passes the dead center, it can be operated to the desired side, so the required amount of operation is halved, resulting in even better operability.

Therefore, it is particularly useful for applications in which multiple cylinders are connected simultaneously, where the operating resistance is particularly large.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway plan view of one embodiment, Fig. 2 is a front view, Fig. 3 is a side view, Fig. 4 is an enlarged view of the main part, and Fig. 5 is a partial half view. FIG. 1...Gas burner, 2...Gas supply path, 3...
Gas cylinder, 4... Stove case (vessel), 9...
... Cylinder connection port, 13 ... Cylinder pressing slide member, 16 ... Instrument block, {14 ... Cylinder set lever, 22 ... Intermediate lever, 24 ... Link} Lever link mechanism, {20 ... Cylinder shaft, 21
... Pivot } Pivot support, O ... line of action, P ... dead point line.

Claims (1)

[Scope of Claim for Utility Model Registration] A cylinder pressing slide member that presses and connects a gas cylinder to a cylinder connection port and releases the pressure by advancing and retracting, and an external device whose base is pivotally supported by a device block of a gas supply path to which the gas cylinder is connected. and a cylinder set lever to be operated;
These cylinder pressing slide members and cylinder set levers are connected to an intermediary lever whose upper end is pivotally supported by the instrument block and whose lower end is connected to the cylinder press slide member, and a link that connects the middle of this intermediate lever and the middle of the cylinder set lever. The cylinder press slide member of the cylinder set lever is connected to form a lever link mechanism that advances and retreats the cylinder press slide member. A gas cylinder set for a simple gas stove, characterized in that a line of action connecting the connection points at both ends of the link between the advancing position and the retracting position is provided with an operating dead center that coincides with the pivot point of the cylinder set lever. Device.