KR20130023020A - Gas cylinder setting apparatus - Google Patents

Abstract

PURPOSE: An apparatus for setting a gasbombe is provided to prevent the gasbombe from being moved and coupled to a governor by preventing the movement of a movable plate to a coupling position by an excessive operating force when the gasbombe is not loaded at a regular position. CONSTITUTION: An apparatus for setting a gasbombe comprises a movable plate(20), a bombe loading part, a bombe receiving part, and a partition plate(5). The gasbombe inserted into the bombe loading part is pressurized toward a governor by the bombe receiving part equipped in the movable plate. The movable plate is moved along the partition plate, which blocks a space between a burner and the bombe loading part, through a loading position on which the gasbombe is loaded and a coupling position in which the stem of the gasbombe and the governor are coupled. The movable plate is pressurized by a pressurizing member in the direction of the loading position. A setting operation lever is rotatably attached to the partition plate, and is equipped with a cam hole and an elastic displacement part(33). A cam pin is latched on the cam hole so that the movable plate is moved from the loading position to the coupling position when the setting operation lever is rotated from an initial position to a setting position. The elastic displacement part is elastically displaced in the direction of the setting position. When the elastic displacement part is elastically displaced in the direction of the setting position and an operating force on the setting operation lever is released, the elastic displacement part elastically returns, the movable plate returns to the loading position by the pressurizing member, and the setting operation lever returns to the initial position.

Description

Gas cylinder setting mechanism {GAS CYLINDER SETTING APPARATUS}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas cylinder setting mechanism that is installed in a gas stove for loading and using a gas cylinder to prevent malfunction of the gas cylinder.

The small gas furnace includes a bomber-mounted portion having a combustion portion provided with a burner for burning fuel gas, and a governor disposed adjacent to the combustion portion and supplying fuel gas at a predetermined pressure to the burner. . The gas stove is loaded with a gas cylinder in the cylinder loading section, and the gas cylinder is moved by the moving plate to be connected to the governor by rotating the setting operation lever provided on the front surface of the case. By operating the ignition knob in this state, the gas furnace performs the opening operation of the governor and the ignition operation of the ignition mechanism, and combustion of the fuel gas supplied to the burner is performed.

The gas cylinder is provided with a gas cylinder failure preventing mechanism for ensuring that the gas cylinder is securely coupled to the governor when the gas cylinder is loaded in the cylinder loading portion in a correct posture and the setting operation lever is operated. The gas cylinder malfunction prevention mechanism is generally formed by forming a guide recess formed of a notch in the flange portion of the gas cylinder and providing a guide convex portion so as to face the guide recess in the outer peripheral portion of the governor (for example, Patent Documents 1 to 1). 3).

In the gas stove, the gas cylinder slides toward the governor side when the gas cylinder is loaded in the cylinder loading section with the normal posture of the guide convex portion facing the guide convex portion and the rotation operation of the setting operation lever is performed. In the gas stove, the guide convex portion is fitted to the guide concave portion, whereby the stem of the gas cylinder is coupled to the stem engaging portion of the governor in a regular posture.

When the gas cylinder malfunction prevention mechanism is loaded with the gas cylinder in an unloaded position where the guide recess is misaligned with the guide projection, the guide projection is brought into contact with the flange. The slide operation toward the governor side of the gas cylinder is disabled. In other words, the gas cylinder failure prevention mechanism disables the rotation operation up to the setting position of the setting operation lever and disables the coupling between the governor and the gas cylinder, thereby making operation of the ignition knob impossible.

Japanese Utility Model Publication H05-087403 Japanese Utility Model Publication H06-030647 Japanese Patent Laid-Open No. H09-310840

By the way, in the gas stove, when the guide cylinder and the guide recess are not fitted together, the setting operation lever is forced to the setting position by force operation when the gas cylinder is prevented from rotating by the gas cylinder failure prevention mechanism. In some cases, the operation of the ignition knob is enabled. In such a case, gas leakage can be prevented by the two O-rings on the cylinder mounting side of the governor. However, when the air passage body is deformed, the O-rings cannot prevent the gas leakage, resulting in an accident.

In addition, in the gas stove, in order to absorb the deviation of the length of the gas cylinder, the gas cylinder is pressed to the governor side by an elastic member such as a leaf spring attached to the cylinder part of the moving plate located on the rear side of the cylinder loading part. . In the gas stove, a certain degree of clearance is set between the guide convex portion and the guide concave portion in order to achieve a smooth fitting engagement during the setting operation by the setting operation lever. In the gas stove, for example, a case in which a fully loaded cylinder part or a supporting part of a setting operation lever is formed by press bending processing or aluminum shape of a slightly thin iron plate is used.

In the gas stove, when the setting operation lever is forcibly operated, the guide convex portion is in contact with the flange portion. Therefore, the elastic member provided on the back side of the cylinder loading portion is forcibly compressed, and the gas cylinder is forcibly inserted into the cylinder loading portion. , The setting operating lever may malfunction in the setting position in a state where the center of the nozzle is displaced. In the gas stove, if the elastic member having a large elastic force is used to prevent the gas cylinder from being loaded into the cylinder loading position, the setting operation lever must be operated with a large operating force. If the gas cylinder is loaded in a posture, the gas cylinder may not be coupled to the governor.

Further, in the gas stove, plastic deformation of the case may occur due to forcible operation of the setting operating lever, and the setting operating lever may malfunction in the setting position. In the gas stove, it is also possible to suppress the occurrence of plastic deformation by forming the case with a thick material, but there is a problem that the weight is increased and the cost is increased.

Accordingly, an object of the present invention is to provide a gas cylinder setting mechanism capable of reliably preventing the gas cylinder malfunction of the gas cylinder by preventing the aforementioned problem of the gas cylinder failure prevention mechanism.

The gas cylinder setting mechanism according to the present invention for achieving the above object is a guide recess formed in the flange portion with respect to the guide convex portion in the bomber loading section in which the governor for supplying fuel gas to the burner is disposed and the guide convex portion is installed. With the gas cylinder loaded with the posture opposite to the normal position, the setting lever is rotated and the gas cylinder is moved to the governor side by the moving plate to guide and convex the guide convex part and the guide concave part. By operating, the stem of the gas cylinder is coupled to the governor is a gas cylinder setting mechanism to supply the fuel gas.

The moving plate has a spring receiving section for pressing the gas cylinder inserted into the spring loading section to the governor side, and along the partition plate blocking the burner side and the spring loading section, the loading position where the gas spring is loaded, the stem and the governor of the gas cylinder It moves across the engaging position for engaging the, and is pressed in the loading position direction by the pressing member.

The setting operation lever is rotatably attached to the partition plate, and the cam pin of the moving plate is engaged and rotated from the initial position to the setting position to move the moving plate from the loaded position to the engaged position, and the setting. An elastic displacement portion capable of elastic displacement in the position direction is provided.

If the setting lever is rotated from the initial position to the setting position while the gas cylinder is not loaded with the normal position in the cylinder loading portion, the flange portion of the gas cylinder is brought into contact with the guide convex portion to the engaging position of the moving plate. Movement is regulated in front of the engaging position, the elastic displacement portion is elastically displaced in the direction of the setting position, and when the operating force to the setting operating lever is released, the elastic displacement portion is elastically returned, and the moving plate is returned to the loading position by the pressing member. The setting operation lever returns to the initial position.

According to the present invention, even when the gas cylinder is not loaded with the normal posture, even if the setting lever is rotated by excessive operating force, the guide convex portion abuts on the flange portion of the gas cylinder so that the elastic displacement portion elastically displaces in the setting position direction. This absorbs excessive operating force. Accordingly, in the present invention, since the moving plate does not move to the engaging position by the excessive operating force in the state where the gas cylinder is not loaded in the normal posture, the gas cylinder does not move to the governor side, so that the gas cylinder is coupled to the governor. Can be prevented.

1 is a perspective view of a table-type gas stove and a gas cylinder having a gas cylinder failure prevention mechanism according to the present invention.
Fig. 2 is a plan view of a main part showing the structure of a cylinder loading section for loading a gas cylinder of the table-type gas stove with the lid open.
3 is a perspective view of a main part of the bomb holder.
Figure 4 is a perspective view of the main part showing the setting state of the gas cylinder loaded with a normal posture on the front of the cylinder.
Fig. 5 is a perspective view of the main part of the cylinder loading section in a state in which the gas cylinder is loaded in an irregular position.
6 is a perspective view of an essential part showing a configuration of a gas cylinder setting mechanism for setting a gas cylinder of the table-type gas stove.
Fig. 7 is a side view showing the state of the gas cylinder setting mechanism before loading the gas cylinder into the cylinder loading section.
Fig. 8 is a side view showing the state of the setting operation lever, (A) is a state before the gas cylinder is loaded into the cylinder loading section, and is a side view showing a state where the cam pin is located in the unlocking portion of the cam hole, (B ) Is a side view showing a state where the cam pin is located in the middle of the cam hole, and (C) is a side view showing a state where the cam pin is located in the lock portion of the cam hole.
Fig. 9 is a side view of the gas cylinder setting mechanism showing the state where the operation pin is lowered and the guide pin is located at the middle of the cam hole.
Fig. 10 is a side view of the gas cylinder setting mechanism showing a state where the guide pin is further lowered and the guide pin is positioned at the lock portion of the cam hole.
Fig. 11 is a side view showing the state of the setting operation lever when the operation cylinder is forcibly lowered in the state where the gas cylinder is loaded with the irregular posture.
12 is a side view of the setting operation lever, which is another embodiment of the setting operation lever.
13 is an exploded view of another embodiment of the setting operation lever.

Hereinafter, a table-type gas stove (1: hereinafter referred to as "the stove") provided with a gas cylinder setting mechanism capable of preventing malfunction of the gas cylinder according to the present invention will be described in detail. The air path 1 has a basic configuration similar to a conventional air path known in the art, and includes a misload prevention mechanism 2 that prevents misbehavior of the gas cylinder. As shown in FIG. 1, the gas cylinder 3 is used as the fuel source, and the air passage 1 burns the fuel gas supplied from the gas cylinder 3. The air path 1 includes a combustion section 7 in which a box-shaped case 4 (cosmetic frame body) is assembled to a chassis, and a burner 6 is provided through a partition plate 5, and the combustion section 7 is provided. It is divided into the bomber loading part 8 which adjoins to, and opens and closes the bomber loading part 8 by the cover body 9. The air path 1 opens the lid 9 and loads the gas cylinder 3 into the cylinder loading section 8. When the gas cylinder 3 is loaded in the cylinder loading portion 8 in an irregular posture, the malfunction prevention mechanism 2 detects this and prohibits setting operation of the gas cylinder 3.

As the gas cylinder 3, a general gas cylinder known in the art can be used, and a mounting cup provided with a stem 10, a valve mechanism, or the like is fitted to the front end portion 3a of the cylindrical container body. The gas cylinder 3 opens the valve mechanism by pushing the stem 10 to inject fuel gas from the stem 10. The gas cylinder 3 is provided with a flange portion 11 which integrates the outer peripheral portion of the mounting cup with the container body, and a notched guide recess 12 is formed at a predetermined position of the flange portion 11. The gas cylinder 3 is attached to and detached from the cylinder loading section 8 of the air path 1 by adjusting the guide recess 12 to a predetermined position as described later.

The air path 1 is detailed after the ignition knob 13 and the gas cylinder setting mechanism 14 on the front surface facing the front part of the cylinder part 8 of the case 4 as shown in FIGS. 1 and 2. The operation knob 15a serving as a handle portion of the setting operation lever 15 is provided. As described later, the air passage 1 is loaded with the gas cylinder 3 in the normal position in the cylinder loading section 8, and the normal combustion operation is performed only when the gas cylinder 3 is set in combination with the governor 16. The air path 1 is supplied with fuel gas from the gas cylinder 3 to the burner 6 by rotating the ignition knob 13.

For reference, the ignition knob 13 operates a ignition device (not shown) provided in the combustion section 7 to ignite the fuel gas so that combustion occurs, and at the same time, supply the fuel gas from the gas cylinder 3. Fire extinguishing is also performed to block and extinguish. In addition, the ignition knob 13 may adjust the thermal power by controlling the supply amount of fuel gas to the burner 6.

The air path 1 has the setting operation lever 15 downwardly in FIG. 1 along the guide hole 4a in the height direction formed in the case 4 with the operation knob 15a provided on the front surface of the case 4. By pushing down in the direction of arrow A, the setting operation of the gas cylinder 3 loaded in the cylinder loading section 8 is performed. In the air path 1, the setting operation of the setting operation lever 15 is enabled in the state where the gas cylinder 3 is loaded with the normal position in the cylinder loading portion 8 as described later. The setting operation of the setting operation lever 15 becomes impossible in the state loaded with the irregular loading posture in the cylinder loading part 8.

As illustrated in FIG. 1, the cylinder loading section 8 is configured as a cylindrical space portion in the front-rear direction sufficient to accommodate the gas cylinder 3 therein, and is provided on the outer circumferential surface of the gas cylinder 3. It is opened and closed by the cover body 9 which has a bottom face part formed in circular arc shape simultaneously, and whose cross section is circular arc shape. The governor 16 is fixed to the governor mounting part 17 of the front side of the bomber loading part 8 as shown in FIG.

As shown in FIG. 2 and FIG. 3, the governor 16 has a cylindrical shape having a fitting hole in which the stem 10 of the gas cylinder 3 is fitted to the outer peripheral portion of the side opposite to the gas cylinder 3. The stem fitting portion 18 is formed, and a gas flow passage communicating with the fitting hole therein is formed. The governor 16 incorporates a valve mechanism (not shown) which controls the opening and closing of the gas passage and the opening / closing amount by the ignition knob 13. The governor 16 opens the valve mechanism of the gas cylinder 3 when the stem 10 of the gas cylinder 3 is fitted and pushed into the fitting hole of the stem fitting part 18.

As shown in Fig. 2 and Fig. 3, the governor 16 is integrally formed with a guide convex portion 19 that constitutes the malfunction prevention mechanism 2 on the outer circumferential portion of the ceiling portion. The guide convex part 19 is formed as a convex part which protrudes toward the gas cylinder 3 side at the position which opposes the guide concave part 12 of the gas cylinder 3 loaded in the bomb loading part 8. . The guide convex part 19 consists of a substantially wedge-shaped convex part which is a width slightly smaller than the notch width of the guide concave part 12 of the gas cylinder 3.

In the air path 1, an operation of coupling the gas cylinder 3 to the governor 16 by detecting the electric charge of the gas cylinder 3 loaded in the cylinder loading section 8 by the misload prevention mechanism 2. Alternatively, a misload prevention operation is performed in which the gas cylinder 3 is not coupled to the governor 16. As shown in FIG. 4, when the guide convex part 19 faces and mutually engages with the guide concave part 12 mentioned above, the malfunction prevention mechanism 2 detects that it is loaded in a normal posture. In addition, as shown in FIG. 5, the misalignment prevention mechanism 2 is not fitted with the guide convex portion 19 to the guide concave portion 12, and the guide convex portion 19 is formed by the gas cylinder 3. When it detects that the flange 11 is not loaded in the normal posture, the gas cylinder 3 is restricted from moving toward the governor 16 in a state other than the normal posture. The failure prevention mechanism 2 performs a failure prevention operation that disables the setting operation of the setting operation lever 15 of the gas cylinder setting mechanism 14. As a result, in the air path 1, the stem 10 of the gas cylinder 3 is not normally coupled to the governor 16.

1, the gas cylinder 3 is inserted into the cylinder front part 8, and the gas cylinder 3 is moved to the governor 16 side by the gas cylinder setting mechanism 14 as shown in FIG. As shown in FIG. 4, the stem 10 is fitted to the governor 16. As shown in FIG. 2 and FIG. 6, the gas cylinder setting mechanism 14 includes a partition plate 5 which closes between the burner 6 side and the cylinder loading section 8, and the gas cylinder 3 by the governor 16. The moving plate 20 for moving to the side), the setting operation lever 15 for moving the moving plate 20 to the governor 16 side, and the moving plate 20 in the loading position X (see Fig. 2). It has a pressurizing member 21 for pressurizing.

The partition plate 5 is formed in an elongate plate shape as shown in FIG. 1, FIG. 6, and FIG. 7, and closes between the burner 6 side and the bomber loading part 8, and the movable plate 20 is set. The operation lever 15 and the pressing member 21 are attached. The partition plate 5 is formed with a guide hole 22 for guiding the movement of the movable plate 20. The said guide hole 22 is formed in elongate shape in the longitudinal direction of the partition plate 5, and the cam pin 26 used as the guide pin of the moving plate 20 is inserted.

As shown in FIG. 1, the moving plate 20 is formed in elongate shape in the longitudinal direction of the partition plate 5, and is attached to the partition plate 5 so that a movement is possible. The moving plate 20 extends toward the burner 6 side and is connected to the rear end portion of the gas cylinder 3 loaded in the cylinder loading section 8 through the guide opening 5b formed in the partition plate 5. One end opposite to 3b) is bent to protrude into the cylinder loading section 8, and a spring 23 is provided. The cylinder 23 is opposed to the rear end 3b of the gas cylinder 3 loaded in the cylinder loading section 8. The cylinder 23 is attached with an elastic member 24 such as a leaf spring which is displaced in the pressing direction of the gas cylinder 3 in order to absorb the length deviation of the gas cylinder 3.

As shown in FIGS. 6 and 7, the movable plate 20 has a cam pin 26 inserted through an end portion of the governor 16 side. The cam pin 26 is engaged with the guide hole 22 of the partition plate 5 and the cam hole 25 of the setting operation lever 15. In addition, the movable plate 20 is exposed toward the bomber loading section 8 from the guide opening 5b formed in the partition plate 5 at the rear end portion 3b side end portion of the gas cylinder 3. The moving plate 20 is supported to be movable along the partition plate 5 by the cam pin 26 and the guide opening 5b which are engaged with the guide hole 22. In addition, the moving plate 20 is connected to the setting operation lever 15 by the cam pin 26 being engaged to the cam hole 25 of the setting operation lever 15.

In addition, as shown in FIGS. 1 and 3, the movable plate 20 is formed by integrally bending a hook piece 27 protruding into the cylinder loading section 8, and the hook piece 27 is partitioned. When moving along the plate 5 is engaged with the container flange portion (3c) provided on the front end portion (3a) side of the container body of the gas cylinder (3).

6 and 7, the cam pin 26 is provided through the moving plate 20, one end of which is engaged with the cam hole 25, and the other end of the cam pin 26 guides the partition plate 5. As shown in FIG. Engaged in the hole 22. The movable plate 20 is slidably attached to the partition plate 5, and the cam pins 26 have cam holes 25 along the shape of the cam holes 25 in accordance with the rotation of the setting operation lever 15. By moving inside, it slides along the partition plate 5.

In the setting operation lever 15, the user of the air passage 1 lowers the operation knob 15a along the guide hole 4a formed in the case 4 so that the cylinder setting mechanism 14 moves the gas cylinder 3 to the governor. The pressure is applied to the (16) side and the pressure on the governor 16 side of the gas cylinder 3 of the cylinder setting mechanism 14 is released by raising the operation knob 15a. When the gas cylinder 3 is inserted into the cylinder loading section 8 and the gas cylinder 3 is not pressurized toward the governor 16 side while being positioned at the loading position X (see FIG. 2), FIGS. As shown in FIG. 7, the operation knob 15a is located at the initial position P of the upper end of the guide hole 4a. Then, the operation knob 15a is rotated from the initial position P in the direction of the arrow A in FIG. 6 to press the gas cylinder 3 to the governor 16 side by the spring receiver 23, and FIGS. 5 and 10. As shown in the figure, in the state where the gas cylinder 3 is located at the engaging position Y (see FIG. 1) engaged with the governor 16, the operation knob 15a is set at the lower end of the guide hole 4a. It is located at (Q). In this way, the setting operation lever 15 is attached to the partition plate 5 so that the operation knob 15a swings the guide hole 4a so as to rotate between the initial position P and the setting position Q. .

As shown in Fig. 6, the setting operation lever 15 includes a main body portion 31, an arm portion 32 having an operation knob 15a attached to its tip, an elastic displacement portion 33, and an attachment portion. Has 35. The setting operation lever 15 is made by attaching an operation member composed of an arm portion 32, an elastic displacement portion 33, and an attachment portion 35 to a main body portion 31. That is, the setting operation lever 15 is comprised by two components, an operation member and the main-body part 31. As shown in FIG.

The main body 31 is rotatably supported by the partition plate 5 by the support point shaft member 34 provided on the partition plate 5. The main body 31 has a cam pin 26 provided on the movable plate 20 in a shape in which the front side is lowered on the side opposite to the arm portion 32 with the support point shaft member 34 interposed therebetween. The engaging cam hole 25 is formed. When the operation knob 15a is rotated from the initial position P to the setting position Q, the main body 31 has the same operation knob 15a as shown in Figs. 8A and 8B. In order to rotate in the direction, the cam pin 26 inserted into the moving plate 20 moves along the cam hole 25, and as shown in FIG. 9, the moving plate 20 moves the gas cylinder 3. Move from the loading position (X) of the to the coupling position (Y).

The cam hole 25 includes an unlocked portion 25a for positioning the moving plate 20 at the loading position X of the gas cylinder 3, and the moving plate 20 of the gas cylinder 3. A lock portion 25b positioned at the engagement position Y and an intermediate portion 25c positioned between the unlock portion 25a and the lock portion 25b are formed in succession. The cam hole 25 is not formed in a straight line from the unlocking portion 25a to the locking portion 25b, but is bent at the intermediate portion 25b to form the movable plate 20 by the pressing member 21. The cam pin 26 is held by the lock portion 25b while being pressed to this loading position side to maintain the engagement state between the gas cylinder 3 and the governor 16.

Further, the main body portion 31 has an elastic displacement portion 33 capable of elastic displacement in the rotational direction of the operation knob 15a on the side facing the cam hole 25 with the support point shaft member 34 interposed therebetween. An arm portion 32 is attached via an attachment portion 35 and to which an operation knob 15a is attached via the elastic displacement portion 33.

The elastic displacement portion 33 is, for example, an elastic member using a material having a restoring force such as SK or SUS. As shown in Fig. 6, the elastic displacement portion 33 is formed in a U shape, and is elastically displaced in the rotational direction of the operation knob 15a, that is, in the setting position Q, so that the ends are close to each other. One end of the elastic displacement portion 33 is connected to the upper end of the attachment portion 35 by welding or the like. The elastic displacement portion 33 rotates the operation knob 15a in the setting position Q direction (arrow A direction in Fig. 6) when the gas cylinder 3 is loaded in the cylinder loading portion 8 in the normal position. Even if it does so, it is hardly elastically displaced and end parts are separated from each other. On the other hand, when the gas cylinder 3 is not loaded in the cylinder loading portion 8 with a normal posture, the elastic displacement portion 33 sets the operation knob 15a from the initial position P as described later. When a large force is applied by forcibly rotating toward (Q), the ends of the operation knobs 15a are elastically displaced in a direction close to each other, thereby absorbing the excessive operation force, thereby moving the gas cylinder 3 to the governor 16 side. The operation knob 15a is reached to the setting position Q without making it work. Accordingly, since the gas cylinder 3 does not move toward the governor 16 side, the gas cylinder 3 does not engage with the governor 16. Then, when the operation knob 15a reaches the lower end of the guide hole 4a and releases the operation force, the elastic displacement unit 33 returns the operation knob 15a to the initial position P by elastically returning.

As shown in FIG. 6, the attachment portion 35 is formed in a plate shape, one end of which is attached to the partition plate 5 together with the main body portion 31 by the support axle member 34, and the other end thereof is, for example, a screw. It is fixed to the main body 31 by 36.

As shown in FIG. 6, the arm part 32 is integrally provided in the other end of the elastic displacement part 33, and the height formed in the front surface of the guide hole 37a and the case 4 which were formed in the chassis 37 It protrudes from the guide hole 4a of the direction, and the operation knob 15a is attached to the front-end | tip.

In addition, the gas cylinder setting mechanism 14 returns the setting operating lever 15 from the setting position Q to the initial position P, thereby moving the moving plate 20 from the engaging position Y to the loading position X. In order to return to FIG. 2, as shown in FIG. 2, it has the press member 21 pressed to the loading position side. The pressing member 21 is engaged between the hook piece 5a of the partition plate 5 and the hook piece 27 of the moving plate 20, and is tensioned when the moving plate 20 is located at the engaging position Y. In this state, the moving plate 20 is pressed in the loading position X direction.

The gas cylinder setting mechanism 14 which consists of the above structures can prevent the malfunction of the gas stove 1 as follows.

First, the case where the gas cylinder 3 is loaded in a normal posture will be described. In the state before loading the gas cylinder 3 to the cylinder loading section 8, as shown in FIG. 7, the pressing member 21 moves the moving plate 20 to the rear side, i.e., the loading position by the pressing force. Is pulling to the side. In the gas cylinder setting mechanism 14, as shown in FIG. 8A, the cam pin 26 is located at the upper end side of the cam hole 25, that is, at the unlocking portion 25a, and is connected to the setting operation. The arm portion 32 and the operation knob 15a of the lever 15 are in a state located at the upper end of the guide hole 4a, that is, at the initial position P. FIG.

Next, the gas cylinder 3 is inserted into the cylinder loading unit 8 and loaded so that the guide protrusion 19 installed in the governor 16 and the guide recess 12 installed in the gas cylinder 3 face each other. When the operation knob 15a is pushed down to the center of the guide hole 4a, as shown in Figs. 8B and 9, the arm 32 of the setting operation lever 15 is also operated by the operation knob 15a. The main body 31 rotates in the direction indicated by the arrow B in FIG. 9 with the support point shaft member 34 as the support point. The cam pin 26 engaged with the cam hole 25 of the main body 31 by the rotation of the main body 31 moves forward from the unlocking portion 25a, that is, in the direction of arrow C in FIG. 9. It moves to the intermediate part 25c of the cam hole 25. As shown in FIG. The gas cylinder setting mechanism 14 is moved by the moving plate 20 by the cam pin 26 to resist the pressing force of the pressing member 21 to move in the engagement position Y in the direction of arrow D in FIG. 9. In the gas cylinder setting mechanism 14, the movable plate 20 moves to the engaged position Y, whereby the cylinder 23 is coupled to the combined position 8 from the loaded position X from the loaded position X. It moves to the side and presses the gas cylinder 3 to the governor 16 side (in the arrow D direction of FIG. 9).

Then, when the operation knob 15a is pushed down to the lower end of the guide hole 4a, that is, to the setting position Q, as shown in FIGS. 8C and 10, the bomber 23 is in a normal position. By further pressing the loaded gas cylinder 3 toward the governor 16 side, the guide convex portion 19 is fitted to the guide concave portion 12, and the stem 10 of the gas cylinder 3 is connected to the stem fitting portion. (18) to engage the stem 10 and the stem fitting portion 18 of the gas cylinder 3 in the engaging position (Y). At this time, in the cylinder setting mechanism 14, the cam pin 26 moves in the cam hole 25 of the main body part 31, and is hold | maintained in the lock part 25b, and the gas cylinder 3 is governed by the governor 16. As shown in FIG. The state is maintained in the Accordingly, fuel gas is supplied from the gas cylinder 3 to the governor 16.

Next, the case where the gas cylinder 3 is loaded in a state other than the normal posture will be described. Before the gas cylinder 3 is loaded, as described above, the operation knob 15a is positioned at the initial position P of the guide hole 4a and the cam pin 26 is unlocked of the cam hole 25. It is located in the section 25a, and the bomb receiving section 23 is located in the loading position X of the bomb loading section 8.

Then, when the operation knob 15a is pushed down, as described above, the cam pin 26 moves in the direction of arrow C of FIG. 9, and the movable plate 20 moves to the engagement position in the direction of arrow D of FIG. 9. The cylinder 23 pushes the gas cylinder 3 to the engaging position, and the gas cylinder 3 moves to the engaging position. Here, since the gas cylinder 3 is not loaded in the normal posture, the guide convex portion 19 does not fit into the guide concave portion 12 of the gas cylinder 3 and abuts against the flange portion 11, Since the gas cylinder 3 does not move to the coupling position Y and the moving plate 20 does not move, even when the operation knob 15a is pushed down to the setting position Q, it is pressed as in the case of the normal posture. You can't get off.

When the operation knob 15a is pushed down by a large force (e.g., a load of about 150N) exceeding a normal operating force (e.g., a load of about 40N), the cam pin is conventionally moved to the lock portion of the guide groove. In some cases, the gas cylinder may be engaged with the governor in a state other than the normal posture by being pulled by the guide pin to move the moving plate to the engaging position. In the gas cylinder setting mechanism 14, when the operation knob 15a is pushed down with a large force exceeding the normal operation force, as shown in FIG. 11, the elastic displacement portion 33 is formed of the operation knob 15a. Although the arm part 32 moves down to the setting position Q of the guide hole 4a with the operation knob 15a by elastic displacement in the rotation direction, the cam pin 26 is the middle portion 25c of the cam hole 25. ), The gas cylinder 3 does not move toward the coupling position (Y) because the moving plate 20 does not move to the coupling position (Y).

Even if the gas cylinder setting mechanism 14 pushes down the operation knob 15a forcibly, as shown in Fig. 11, the elastic displacement portion 33 made of a leaf spring or the like rotates in the rotational direction of the operation knob 15a (Fig. By absorbing excessive operating force by elastic displacement in the direction of arrow A of FIG. 11, only the operation handle 15a and the arm portion 32 rotate toward the setting position Q, and the operation handle (at the lower end of the guide hole 4a) 15a) and arm portion 32 touch. For reference, the elastic displacement portion 33 has a hardness that is not elastically displaced in the case of normal use in which the gas cylinder 3 is loaded in a normal position.

Then, when the operation knob 15a touches the guide hole 4a and the force pushed down is forcibly released, the elastic displacement portion 33 elastically returns, and the operation knob 15a and the arm part 32 are guide holes ( Return to the initial position P of 4a). Accordingly, in the gas cylinder setting mechanism 14, the cam pin 26 moves from the middle portion 25c of the cam hole 25 to the unlocking portion 25a, and the movable plate 20 is loaded at the loaded position ( By returning to X), the gas cylinder 3 also moves away from the governor 16 and returns to the loading position X.

Thus, in the gas cylinder setting mechanism 14, when the gas cylinder 3 is loaded in a state other than the normal posture, even if the operation knob 15a is forcibly pressed down to the setting position Q, the excessive operating force is elastically displaced. The stem of the gas cylinder 3 is absorbed because the portion 33 is displaced, so that the cam pin 26 does not move to the lock portion 25c, and the moving plate 20 does not move to the engaged position Y. Since 10 is prevented from being coupled to the governor 16, the malfunction of the gas cylinder 3 can be prevented. In addition, in the gas cylinder setting mechanism 14, since the operation knob 15a returns to the initial position P, it turns out that the gas cylinder 3 is not attached normally. In addition, in the gas cylinder setting mechanism 14, since the elastic force of the elastic member 24 attached to the cylinder part 23 does not need to be enlarged in order to prevent malfunction, the operating force of the operation knob 15a Can be operated without change from the conventional. In the gas cylinder setting mechanism 14, when the operation knob 15a is forcibly operated, the elastic displacement portion 33 is elastically displaced to absorb excess operating force, so that the case 4 is not deformed. Deformation of the flange portion 11 of the cylinder 3 also does not occur, and it is not necessary to use a case 4 made of a thick material, and the weight can be prevented from being increased or the cost is increased.

In the gas cylinder setting mechanism 14 described above, the arm member 32, the elastic displacement portion 33, and the attachment portion 35 are attached to the main body portion 31 by an operation member composed of one component. Although it is comprised from components, it is not limited to this, As shown in FIG. As shown in FIG. 13, the main body portion 31, the arm portion 32, the elastic displacement portion 33, and the attachment portion 35 have restoring force such as SK, SUS, or the like used for the elastic displacement portion 33. FIG. It is formed as shown in FIG. 12 by bending one plate-shaped object which consists of elastic members etc. which used the material, and formed in the shape of the main-body part 31, etc. In the gas cylinder setting mechanism 14, by setting it as such a structure, the malfunction of the gas cylinder 3 mentioned above can be prevented, and the elastic force of the elastic member 24 attached to the cylinder part 23 needs to be enlarged. The number of parts can be reduced, in addition to the effect that the thickness of the case 4 is not reduced, and the process of connecting the operation member and the main body 31 can be omitted.

1: cooker
2: malfunction prevention mechanism
3: gas cylinder
4 case
4a: guide groove
5: partition plate
6: burner
7: combustion section
8: all of bomb
9: cover body
10: stem
11: flange
12: guide part
13: ignition knob
14 gas cylinder setting mechanism
15: operation lever
16: governor
17: governor attachment part
18: stem fitting part
19: guide convex
20: Movable plate
21: pressure member
22: guide hole
23: bomb carrier
24: elastic member
25: cam hole
26: cam pin
27: hook
31: main body
32: arm part
33: elastic displacement portion
34: support point shaft member
35: attachment part
36: screw
37: chassis
37a: guide hole

Claims (6)

In the state where the gas cylinder is loaded with a normal posture in which a governor for supplying fuel gas to the burner is disposed and a guide recess formed in the flange portion with respect to the guide protrusion is opposed to the cylinder loading portion provided with the guide protrusion. By rotating the setting operation lever, the gas cylinder is moved to the governor side by a moving plate, and the stem setting operation of the gas cylinder stem is carried out by inserting the guide convex part and the guide recess part to face each other. In the gas cylinder setting mechanism to be coupled to the supply of the fuel gas,
The moving plate has a spring receiving portion for urging the gas cylinder inserted into the spring loading portion to the governor side, and a loading position in which the gas spring is loaded along a partition plate blocking the burner side and the spring loading portion. And move across the coupling position for coupling the stem of the gas cylinder and the governor, and is pressed in the loading position direction by the pressing member,
The setting operation lever is rotatably attached to the partition plate, and the cam pin of the movable plate is engaged and rotated from an initial position to a setting position, thereby moving the movable plate from the loaded position to the engaged position. A cam hole to be provided and an elastic displacement portion capable of elastic displacement in the setting position direction,
When the setting lever is rotated from the initial position to the setting position in a state in which the gas cylinder is not loaded in the normal position in the cylinder loading portion, the flange portion of the gas cylinder abuts on the guide convex portion, When the movement of the movable plate to the engaging position is regulated in front of the engaging position, the elastic displacement portion is elastically displaced in the direction of the setting position, and when the operating force to the setting operation lever is released, the elastic displacement portion is elastically returned. The gas cylinder setting mechanism further includes the moving plate returning to the loading position by the pressing member and the setting operation lever returning to the initial position. The method of claim 1,
The cam hole includes an unlock portion for positioning the movable plate at the loading position, a lock portion for positioning the movable plate at the engaging position, and between the unlocked portion and the lock portion. Has an intermediate part located,
When the gas cylinder is not loaded with the normal position in the cylinder loading portion, the flange portion of the gas cylinder abuts on the guide convex portion, whereby movement in the direction of the lock portion from the middle portion of the cam pin is restricted. , Gas cylinder setting mechanism. 3. The method according to claim 1 or 2,
The setting operation lever has an arm portion for attaching a handle portion to one end of the elastic displacement portion,
The outer case is provided with a guide hole through which the arm portion is inserted to direct the handle portion to the outside,
And the gas cylinder is elastically displaced until the arm portion abuts against an end portion of the guide portion when the gas cylinder is not loaded in the normal position in the cylinder loading portion. The method of claim 1,
The elastic displacement portion is a U-shaped, the gas cylinder setting mechanism that is elastically displaced in the direction in which the ends are adjacent. The method of claim 1,
The setting operation lever is provided with the elastic displacement portion provided in the main body portion formed with the cam hole, the main body portion and the elastic displacement portion is integrally coupled to a separate member, the gas cylinder setting mechanism. The method of claim 1,
The gas operating setting mechanism is the gas lever setting mechanism, wherein the setting operation lever is one component provided integrally with the main body portion where the cam hole is formed and the elastic displacement portion.

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