JPH0972536A - Gas instrument including fire adjusting lever - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain operation feeling and properly adjust it by providing a cam surface in slidable contact with an operation member provided on a fire adjusting lever, and further providing on the cam surface a smooth transfer edge to a strong fire position for gradually increasing press force, a return edge for rapidly increasing the press force, and an extinction edge for rapidly decreasing the press force. SOLUTION: A cam plate 82 is rotatably mounted on a cam branch fulcrum 83 provided on a lever substrate 6. A right side edge of the cam plate 82 forms a cam edge (cam surface) 84 and makes slidable contact with a lower lever pin 81. The cam edge 84 includes a recessed portion being a weak fire position, and a smooth transfer edge to a strong fire position provided in a direction going away from the cam branch fulcrum 83 through a small discontinuous point from the recessed portion and gradually increasing press force. Further, it includes a return edge smoothly extending from the recessed portion in a direction approaching the fulcrum 83 and rapidly increasing the press force. It furthermore includes an extinction edge provided through a large discontinuous point 8 from the return edge and rapidly decreasing the press force.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas appliance with improved operability of a heat power adjusting lever.

[0002]

2. Description of the Related Art A gas appliance such as a table stove is equipped with a slide type heat adjusting lever for adjusting the heat of a gas burner. The adjustment range of the heat power is in the range of high heat power to low heat power, but in the grill cabinet for pottery, the upper grill burner and the lower grill burner are installed above and below the grill cabinet, and either one of the burners is extinguished to uncook. Adjust the degree of baking.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide an operating force for adjusting the operating force of a heating power adjusting lever, which allows setting of a weak heating position and a feeling of operation from a weak heating position to a strong heating position, and an appropriate adjustment. It is in the provision of the mechanism. An object of the invention as set forth in claim 2 is to improve the assemblability of the thermal power adjustment lever mechanism. An object of the invention described in claim 3 is to make the operating force imparting mechanism compact and improve the assembling property. An object of the invention described in claim 4 is to reduce the types of parts of the thermal power adjustment lever mechanism.

[0004]

The present invention is provided in a gas flow path for supplying combustion gas to a burner, and adjusts the heat of the burner by rotating a valve body from strong heat to weak heat to extinguishing fire. A gas appliance including a thermal power adjustment valve and a thermal power adjustment lever for rotating a valve body of the thermal power adjustment valve, the operating device provided on the thermal power adjustment lever, and a cam surface slidingly contacting the active member. A cam plate rotatably mounted around a fulcrum, and an operating force imparting mechanism that is provided on the cam plate and that includes a spring that presses the cam surface against the acting member. A recess which is a weak heat position, and a transition edge from the recess to a smooth strong heat position that gradually increases the pressing force while being continuously provided in a direction away from the fulcrum through a discontinuity, and the recess From the fulcrum It is smoothly extended to brute direction and a return edge to surge the pressing force, while being continuously provided through the discontinuity from the return edge, characterized by comprising a fire extinguishing edge to sharply the pressing force.

In the gas appliance according to a second aspect of the present invention, the burners are an upper grill burner and a lower grill burner mounted on an upper portion and a lower portion of a grill on a table hob, and the heating power control valve controls the heating power of the upper grill burner. A left heat power adjusting valve for adjustment and a right heat power adjusting valve for adjusting the heat power of the lower grill burner are arranged in parallel, and the heat power adjusting lever is
The upper and lower surfaces of the lever base plate are rotatably supported at the same fulcrum and are composed of an upper heating power adjusting lever for operating the left heating power adjusting valve and a lower heating power adjusting lever for operating the right heating power adjusting valve. And

In the gas equipment according to the third aspect, a torsion coil spring is used as the spring. In the gas equipment according to a fourth aspect of the present invention, the cam plate uses the same parts of the upper heat power adjusting lever and the lower heat power adjusting lever turned upside down.

[0007]

According to the present invention, the operation of the heat power adjusting lever between the high heat power and the low heat power can be slid on the cam surface with a smaller operation force, and the discontinuity of the light operation force when thrown into the low heat power. You get a sense. Further, when the fire is put into the fire extinguishing position from the weak position, a large operating force is suddenly required, and therefore the operator can distinguish the user without looking at the operation panel.

Since the fire extinguishing position sharply decreases when the point of great discontinuity is exceeded, the operation is stopped at this point and the fire extinguishing position is automatically set by the biasing force of the spring. Even if the operation is sudden and the weak position is exceeded, the spring can return to the weak position before the great discontinuity. Thereby, operability can be improved.

In the structure according to the second aspect, the upper and lower firepower adjusting levers can be integrally assembled, and the assembling property can be improved. With the configuration according to the third aspect, there is an advantage that the mounting space of the spring can be reduced by using the torsion coil spring, and the spring can be assembled without using a jig. With the configuration according to claim 4, the same parts can be used for the cam mechanism, and the types of parts can be reduced.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the present invention will be described with reference to the drawings. 1 to 3 show a grill burner valve mechanism A provided on a table stove T as a gas appliance. The valve mechanism A includes a point / fire extinguishing mechanism 100 and a governor valve 20.
0, and has a heat power increase / decrease mechanism 300. This valve mechanism A
Is a combustion plate type upper grill burner G1 installed on the right end inside the table stove T shown in FIG. 4 and installed on the ceiling in the grill cabinet 400 shown in FIG. 5, and the grill cabinet 400.
The supply of fuel gas to the lower grill burner G2, which consists of a pair of pipe burners attached to the lower portions on both sides inside, is adjusted.

The heating power adjusting mechanism 300 is manually operated by a heating power adjusting lever mechanism 500 having an upper heating power adjusting lever 6A and a lower heating power adjusting lever 6B.

The table stove T is provided with stove burners B1 and B2 on the left and right of the upper surface of the housing H, and a grill cabinet 400 is arranged between the stove burners B1 and B2. The front surface of the housing H is an operation surface, and the point / fire extinguishing mechanism 100
To operate the upper grill burner G1 and the lower grill burner G
Point / fire extinguishing button 101 for igniting or extinguishing 2
However, it is urged forward by a spring (not shown) and is swingably attached in the front-rear direction.

Above the point / fire extinguishing button 101 on the operation surface, slide type operation knobs 301 and 302 for operating the heat power adjusting lever mechanism 500 are provided slidably in the left and right directions. As for the slide positions of the slide type operation knobs 301 and 302, in FIG. 4, the right end is extinguishing, the middle part is weak heat power, and the left end is strong heat power.

As shown in FIG. 3, the point / fire extinguishing mechanism 100 is
A safety valve S and a main valve M are provided inside and a cylindrical main valve body 1 horizontally mounted in the front-rear direction is provided. The governor valve body 2 of the governor valve 200 is fastened to the upper surface of the front part (left part in the figure) of the main valve body 1. On the upper surface of the rear part (right part in the figure) of the main valve body 1,
The heat adjustment valve body 3 of the heat increase / decrease mechanism 300 is fastened.

A switch mechanism 4 actuated by a point / fire extinguishing button 101 is fastened to the front end surface of the valve body 1. The switch mechanism 4 includes a switch frame 41 fastened to the front end surface of the main valve body 1 with a screw, and a switch body 4 fitted in the switch frame 41 so as to be movable back and forth.
2 and.

The switch body 42 is urged forward (to the left in the drawing) by a spring 43, and when pushed in from the projecting position (fire extinguishing position), it is pushed in (ignition position).
Reach When the push-in is released in this state, it is locked at the intermediate position (combustion position) by the push / push mechanism 44 by the heart cam or the modified heart cam, and when pushed in again from the intermediate position, it returns to the original protruding position (fire extinguishing position).

As shown in FIG. 3, the shaft valve 11 of the main valve body 1 is fitted with the electromagnet 12 of the safety valve S at the rear portion (right portion in the figure), and the inside thereof forms a gas flow passage 13 for fuel gas.
An inflow port 14 that opens downward is provided at the rear part (left part in the drawing) of the main valve body 1, and an outflow port 15 that opens upward and communicates with the governor valve body 2 is formed at the front part.

Inside the shaft hole 11, the tip of the switch main body 42
The valve shaft rod 5 that is in contact with the tip (right end in the figure) of the valve is inserted movably back and forth. The valve shaft 5 is biased forward by the spring 51, and is displaced in the front-back direction in conjunction with the switch body 42 that is operated by operating the point / fire extinguishing button 101, and has the action of opening and closing the gas flow path 13. .

The portion of the gas flow path 13 where the outflow port 15 is provided is formed with a small diameter to form a valve port 16, and the valve shaft rod 5
A main valve M is formed with a collar-shaped main valve body 52 which is externally fitted to the spring 51 and has a spring 51 installed back. A throttle wall 54 is formed between the main valve M and the inflow port 14, and the safety valve S
It becomes the valve opening 55 of. A collar-shaped safety valve body 56 of the safety valve S is externally fitted together with the safety valve spring on the rear portion of the valve shaft 5, and closes the valve port 55 when the valve shaft 5 is located on the front side (left side in the drawing).

The governor valve body 2 comprises a front portion 2A in which a rubber diaphragm 21 is housed, and a rear portion 2B in which a gas flow path 13 connected to the thermal power control valve body 3 is provided. The front portion 2A has a governor inlet 22 that opens downward and communicates with the outlet 15 of the main valve body 1, a dish-shaped diaphragm chamber 23 that opens upward, and a partition wall between the governor inlet 22 and the diaphragm chamber 23. Has a governor valve port 24 provided in the.

In the rear portion 2B, there are provided an intermediate vertical passage 25 extending downward from the diaphragm chamber 23, and a governor outlet 26 communicating with the vertical passage 25 and having a cross-sectional area gradually increasing toward the rear. Has been. The diaphragm chamber 23 is covered with a cap 27 made of sheet metal, and the diaphragm 2
The outer periphery of No. 1 is sandwiched between the edge of the diaphragm chamber 23 and the edge of the cap 27.

A valve body holding member 28 is attached to the center of the diaphragm 21, and a biasing force adjusting screw mechanism 29 provided on the upper surface of the holding member 28 and the ceiling of the cap 27.
An adjusting spring 2S is interposed between the and. A governor valve body 20 for adjusting the opening degree of the governor valve port 24 is provided on the valve body holding member 28 so as to project downward.
The governor valve body 20 has a large-diameter portion at the tip, and the governor outlet 26
When the gas pressure applied to the lower surface of the diaphragm 21 increases, it is displaced upward to reduce the valve opening.

The thermal power control valve body 3 has a front part having two vertical cylinders 3A and 3B on the right and left, and two horizontal cylinder outlets 3C on the right and left to the upper grill burner G1 and the lower grill burner G2.
It consists of a rear part with 3D. At the upper ends of the vertical cylindrical portions 3A and 3B, there are provided a left heat adjustment valve 40 and a right heat adjustment valve 30 for adjusting the heat power of the upper grill burner G1 and the lower grill burner G2.

A link lever mechanism 45 for increasing and decreasing the valve opening of the heat adjustment valves 30, 40 is attached to the upper end surface of the heat adjustment valve body 3. Link lever mechanism 4
Reference numeral 5 has a left link lever 4B and a right link lever 4A, and is freely rotatable by a single fulcrum 32 provided on the upper wall surface of the bottomless box-shaped bracket 31 fastened to the upper end surface of the thermal power control valve body 3. It is supported.

The right link lever 4A extends to the right of the fulcrum 32 and has a working arm 46 which is a fork portion having a cut groove formed by bending the front end downward and the fulcrum 32.
And a driven arm 47 which is a fork portion which is extended in the front direction and whose tip is bent downward in an L shape to form a cut groove.

The left link lever 4B is the right link lever 4
A working arm 48, which is superposed on A, extends to the left side of the fulcrum 32 and has a tip bent downward to form a notch groove, and extends in the front direction of the fulcrum 32, It has a driven arm 49 which is a fork portion having a notched groove at its tip.

As shown in FIG. 3, the right and left vertical cylindrical portions 3A, 3B.
Is provided with a common inlet 3I connected to the rear end (the tip of the outlet 24) of the governor valve body 2 on the lower front surface, and a horizontal extension extending rearward from each vertical cylindrical portion 3A, 3B on the rear surface of the intermediate portion. The cylindrical outlets 3C and 3D are arranged in parallel. As shown in FIG. 2, the right vertical cylinder portion 3A and the left vertical cylinder portion 3B have a valve body 3a of the right thermal power control valve 30 and a valve body 3b of the left thermal power control valve 40 that are rotatable and vertically movable at their upper ends. It is fitted.

Each of the valve bodies 3a and 3b has a cylindrical shape, and the upper end thereof is exposed at the upper part of the vertical cylindrical portions 3A and 3B and is fitted into the right vertical cylindrical portion 3A and the left vertical cylindrical portion 3B. A right needle pin 33 and a left needle pin 34 for rotating the valve bodies 3a and 3b to increase / decrease the valve opening are attached to the portion in the orthogonal direction.

Right needle pin 33, left needle pin 34
Through the right side inclined slit 35 and the left side inclined slit 36, which extend laterally from the upper ends of the vertical cylindrical portions 3A and 3B of the thermal power regulating valve body 3 and are provided on the right and left side walls of the box-shaped bracket 31, and act as cam grooves. Overhangs. The tip portions of the needle pins 33 and 34 are engaged with the fork portions of the working arms 46 and 48.

The right slanting slit 35 and the left slanting slit 36 determine the rotation amount of the right needle pin 33 or the left needle pin 34 driven by the right link lever 4A or the left link lever 4B in the axial direction of the valve bodies 3a, 3b. The valve opening degree of the thermal power control valves 30 and 40 is increased / decreased by converting into the movement amount.

When the right and left needle pins 33, 34 are set to the upper end (front side end), the valve opening of the thermal power regulating valves 30, 40 becomes maximum and the thermal power of the upper grill burner G1 and the lower grill burner G2 becomes the strongest. When the needle pins 33, 34 are set to the lower end (front end), the thermal power control valve 30,
The valve opening of 40 is minimum to closed, and the heat power of the upper grill burner G1 and the lower grill burner G2 is weakest to extinguish.

On the upper part of the governor valve body 2, three fastening seats 18 each having a screw hole are provided so as to project upward, and a fire power adjusting lever mechanism 500 is fastened. The heating power adjusting lever mechanism 500 is rotatably mounted on the lever base plate 6 and the upper and lower surfaces of the lever base plate 6 by a fulcrum 61, and includes an upper heating power adjusting lever 6A for adjusting the heating power of the upper grill burner G1 and a lower grill burner G2. It has a lower heat power adjusting lever 6B for adjusting the heat power.

The lever base plate 6 is fastened to the governor valve body 2 by screwing the three screws 17 into the screw holes of the fastening seat 18. The lever base plate 6 has a hole 62 formed in the center thereof through which the cap 27 of the governor valve 200 is inserted, and a lever guide 7 formed by bending an extension of the lever base plate 6 upward is provided at the front end. At the front ends of the upper heat power adjusting lever 6A and the lower heat power adjusting lever 6B,
The slide type operation knobs 301 and 302 are fixed.

The upper heat power adjusting lever 6A and the lower heat power adjusting lever 6B have pawls 63 and 64 formed at the rear end of the fulcrum 61 by bending the tip extensions upward, and the driven arms 47 of the link levers 4A and 4B, respectively. , 49 in the front end notches. In front of the fulcrum 61 of the upper heat power adjusting lever 6A and the lower heat power adjusting lever 6B, a left curved portion 65 (see FIG. 6) and a right curved portion 66 (see FIG. 6) for bypassing (avoiding) the cap 27 of the governor valve 200. 7 to 11) are formed in the left-right direction.

On the lower surface of the left front end of the lever base plate 6, a cam mechanism 9 for applying an operating force to the upper heat power adjusting lever 6A.
(See FIGS. 1 and 6). A cam mechanism 8 (see FIGS. 7 to 11) for applying an operating force to the lower heat power adjusting lever 6B is provided on the upper surface of the right end of the lever substrate 6.

The cam mechanism 8 includes a lower lever pin 8 which is erected upward from the right side of the fulcrum 61 of the lower heat power adjusting lever 6B.
1, a pin insertion hole 67 formed in the lever substrate 6, and a cam plate 82. The cam plate 82 is rotatably attached to a cam plate fulcrum 83 provided at the right end of the lever substrate 6.

The right edge of the cam plate 82 is a cam edge (cam surface) 8
4, the cam edge 84 is in sliding contact with the lower lever pin 81 protruding above the lever substrate 6 through the insertion hole 67. Between the lever substrate 6 and the cam plate 82,
A torsion spring 85 supported by the cam plate fulcrum 83 is attached to urge the cam plate 82 in the counterclockwise rotation direction.

The cam edge 84 is a recess 84 which is a low heat position.
a and a transition edge 87 to the smooth strong-fired position which is continuously provided from the recess 84a in the direction away from the cam plate fulcrum 83 via the small discontinuity 86, and which gradually increases the pressing force,
A fire edge that smoothly extends from the recess 84a toward the fulcrum 83 and is connected to a return edge 88 that rapidly increases the pressing force and a large discontinuity 89 from the return edge, and that rapidly reduces the pressing force. 80 and.

The cam mechanism 9 has a symmetrical structure with the cam mechanism 8 and projects from the left side of the fulcrum 61 of the upper heat-power adjusting lever 6A to the lower side of the lever board 6 by bypassing the left edge of the lever board 6. The upper lever pin 91 and the cam plate 92 are provided. The cam plate 92 is used by turning over the same parts as the cam plate 82, and is rotatably attached to a cam plate fulcrum 93 provided at the left front end of the lever substrate 6.

The left edge of the cam plate 92 is a cam edge 94 which is the same as the cam edge 84, and the lever base 6 is attached to the cam edge 94.
Is in sliding contact with the upper lever pin 91 protruding downward. Between the lever board 6 and the cam plate 92, the same torsion spring 9 as the torsion spring 85 supported by the cam plate fulcrum 93 is provided.
5 is attached to urge the cam plate 92 in the clockwise direction.

These cam mechanisms 9 and 8 give a predetermined operation force when the upper heat power adjusting lever 6A or the lower heat power adjusting lever 6B is slid between the high heat power and the low heat power.
Further, when operating from the low heat position to the fire extinguishing position, a larger operation force is required, and when the upper heat adjusting lever 6A or the lower heat adjusting lever 6B is released during the fire extinguishing operation, A springback function that automatically returns to low heat is added. Further, a large discontinuity 89 is formed in the middle of the cam edge 84 between the low heat position and the fire extinguishing position, but a large discontinuity 89 is formed. It is automatically put in the fire extinguishing position by the function.

As shown in FIG. 12, the lever guide 7 has a substantially H-shaped front shape, and has a horizontally long slit-like shape in which the tips of the upper heat power adjusting lever 6A and the lower heat power adjusting lever 6B can slide over the horizontal member 71. Openings 72 and 73 are formed. Both ends of the slit-shaped openings 72 and 73 are
It serves as a stopper at the tip of the upper heat power adjusting lever 6A and the lower heat power adjusting lever 6B. It is a strength member, and there is an advantage that a strong stopper can be formed by extending the lever board 6 having a large plate thickness to form a stopper.

At the right end of the lateral member 71, a rotary plate 74 having a substantially isosceles triangle whose apex angle portion is an arc is rotatably mounted at a fulcrum 75. As shown in FIG. 12A, protrusions 7A and 7B are formed on the front surface of the lateral member 71, and the rotating plate 74 whose rotation range is limited by the protrusions 7A and 7B is When one of the adjusting lever 6B and the upper heat power adjusting lever 6A is set to the fire extinguishing position, even if the other is operated to put it in the fire extinguishing position, as shown in (b) of FIG. It has the effect of blocking the injection into the.

That is, the selecting mechanism 70 is configured to prevent both the lower heat power adjusting lever 6B and the upper heat power adjusting lever 6A from being simultaneously put in the fire extinguishing position. As a result, the upper grill burner G1 and the lower grill burner G2
The condition that at least one of them is burning is obtained during use of the grill.

Next, the operation of this gas equipment will be described. When the ignition / fire extinguishing button 101 is pressed during ignition, the switch body 42 is pushed in. At this time, the valve shaft 5 is pushed in, the main valve M and the safety valve S are opened, and the fuel gas is supplied from the thermal power adjusting mechanism 300 to the upper grill burner G1 and the lower grill burner G2 via the governor valve 200. In synchronization with this, ignition is performed by an ignition device (not shown).

When the lower grill burner G2 during combustion is extinguished while the grill cabinet 400 is in use, the gas pressure in the gas passage 13 temporarily increases. At this time, the diaphragm 21 of the governor valve 200 is displaced upward to reduce the valve opening. When the lower grill burner G2 during ignition is ignited, the gas flow path 13
The gas pressure is temporarily reduced. At this time, the diaphragm 21 moves downward to increase the valve opening. As a result, the pressure fluctuation of the fuel gas is instantly reduced, and the lower grill burner G
At 2, stable combustion is always obtained.

FIG. 6 shows the connected state of the upper heat power adjusting lever 6A and the left link lever 4B which are set to the position of the low heat power. 7 to 11 show the connected states of the lower heat power adjusting lever 6B and the right link lever 4A which are set to the strong heat power to the weak heat power, the spring back position to the weak position, and the fire extinguishing position, respectively.

In this heat power adjusting lever mechanism 500, the upper and lower heat power adjusting levers 6A and 6B can be smoothly slid by the transition edge 87 with a small constant operation force between the high heat power and the low heat power. Further, when the high heat power or the medium heat power is applied to the low heat power, the small discontinuity point 86 provides a light operation force discontinuity (impact). Further, when the fire is put into the fire extinguishing position from the weak position, the return edge 88 suddenly requires a large operation force, so that the user can identify the operation without looking at the operation panel.

When the fire is put into the fire extinguishing position, when the operation exceeds the great discontinuity point 89, the operation force sharply decreases together with the feeling of discontinuity (impact) of a large operation force, so that the operator can easily identify it without looking at the operation panel. You can At this point, the operation is stopped, and the cam plate 82 and the lower fire force adjusting lever 6B are automatically set to the fire extinguishing position by the action of the fire extinguishing edge 80.

Further, the operation of the lower heat power adjusting lever 6B from the high heat power position or the medium heat power position to the low heat power position is rapid, and even if the low heat power position is overshot, the operation force is in front of the great discontinuity point. It is easy for the user to identify because the number increases rapidly.
According to this identification, when the lower heat power adjusting lever 6B is released, the return edge 88 automatically returns to the weak heat power position.

In this embodiment, the operability of the heating power adjusting lever is high due to the action of the cam surfaces of the cam plates 82 and 92. In addition, the upper and lower fire power adjusting levers 6A, 6B, the cam mechanisms 8, 9
Since it is integrally assembled with the lever substrate 6 to form an assembly, the assembling property can be improved.

[Brief description of drawings]

FIG. 1 is a perspective view of a valve mechanism of a table stove grill burner.

FIG. 2 is a perspective view of a valve mechanism in which a heating power adjusting lever mechanism and a link lever mechanism are removed.

FIG. 3 is a cross-sectional view of a valve mechanism of a table stove grill burner.

FIG. 4 is a perspective view of a table stove.

FIG. 5 is a schematic configuration diagram of a grill burner and a valve mechanism.

FIG. 6 is a plan view of the valve mechanism of the grill burner.

FIG. 7 is a plan view of the valve mechanism of the grill burner.

FIG. 8 is a plan view of the valve mechanism of the grill burner.

FIG. 9 is a plan view of the valve mechanism of the grill burner.

FIG. 10 is a plan view of the valve mechanism of the grill burner.

FIG. 11 is a plan view of the valve mechanism of the grill burner.

FIG. 12 is a front view of a guide panel.

[Explanation of symbols]

 3a, 3b Valve body 6 Lever base plate 6A Upper heat power adjusting lever 6B Lower heat power adjusting lever 13 Gas flow path 30 Right heat power adjusting valve 40 Left heat power adjusting valve 80 Fire extinguishing edge 82, 92 Cam plate 83, 93 Cam plate fulcrum 84a Recess 85 , 95 Torsion spring 86 Small discontinuity point 87 Transition edge 88 Return edge 89 Large discontinuity point 400 Grill compartment 500 Fire power adjustment lever mechanism B1, B2 Stove burner G1 Upper grill burner G2 Lower grill burner T Table stove

Claims (4)

[Claims] 1. A thermal power adjustment valve which is provided in a gas flow path for supplying combustion gas to a burner, and which adjusts the thermal power of the burner by rotating the valve body from a high thermal power to a low thermal power to extinction, and the thermal power control valve. In a gas appliance provided with a heating power adjusting lever for rotating a valve body of a valve, an operating member provided on the heating power adjusting lever and a cam surface slidably contacting the operating member are provided, and the operating member is rotatable about a fulcrum. The attached cam plate and provided on the cam plate,
An operating force imparting mechanism including a spring that presses the cam surface against the acting member is additionally provided, and the cam surface moves away from the fulcrum through a recess, which is a weak heat position, and a discontinuity from the recess. And a return edge for smoothly increasing the pressing force, a return edge for smoothly increasing the pressing force, a return edge for smoothly increasing the pressing force in a direction approaching the fulcrum from the recess, and the return A gas appliance, characterized by comprising a fire extinguishing edge which is continuously provided from the edge through a discontinuity point and which rapidly reduces the pressing force. 2. The burner according to claim 1, wherein the burners are an upper grill burner and a lower grill burner mounted on an upper portion and a lower portion of a grill on the table stove, and the heat adjustment valve is a left for adjusting a heat of the upper grill burner. A heat power adjusting valve and a right heat power adjusting valve for adjusting the heat power of the lower grill burner are arranged in parallel, and the heat power adjusting lever is rotatably supported on the upper surface and the lower surface of the lever base plate at the same fulcrum, and A gas appliance comprising an upper heat power adjusting lever for operating a left heat power adjusting valve and a lower heat power adjusting lever for operating the right heat power adjusting valve. 3. The spring according to claim 1, wherein the spring is
A gas device characterized by being a torsion coil spring. 4. The gas equipment according to claim 2, wherein the cam plate is used by turning the same parts of the upper heat power adjusting lever and the lower heat power adjusting lever upside down.