JPH0712328A - Gas on/off device for cooking gas burner and gas cooking appliance - Google Patents

Abstract

PURPOSE:To make it possible to change over easily high heating power and low heating power in simple structure in a gas burner. CONSTITUTION:This invention relates to a gas ON/OFF device for a cooking gas burner B which ignites and extinguishes gas and controls the feed of gas. A capacity control valve 5 is installed in series to a gas flow rate control valve 15 which is operated with an operation means 2 installed in a gas feed line 4 in a cooking appliance. A manipulator 2X, which is different from the operation means 2, is arranged so that the capacity control valve 5 may be operable.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas switchgear and a gas cooker for a cooking gas burner that ignites, extinguishes, and adjusts the amount of gas supplied to the cooking gas burner. It also relates to technology for easily adjusting the capacity of low thermal power.

[0002]

2. Description of the Related Art Conventionally, in a gas switchgear for a gas burner for cooking, ignition, extinguishing, and adjustment of the gas supply amount are performed for the gas burner with one operating tool, and such a gas burner for cooking is used. As for the gas switchgear, the thermal power for the standard thermal power and the one for the low thermal power are manufactured, the standard thermal power is built into the gas supply passage of the standard gas burner, and the low thermal power is small. It is installed in the gas supply passage of the gas burner. In addition, in high-fired gas burners that require high-fired power for stir-fry cooking such as Chinese food, multiple mixing pipes for gas supply for the standard gas burner may be combined, or one mixing pipe may be branched and formed, or For example, a mixing pipe for a gas burner and a mixing pipe for a small gas burner are combined.

[0003]

By the way, in the gas switchgear for the various gas burners described above, the degree of heating power thereof is set in advance, and in principle, it is impossible to change the heating power of each gas burner. .
Therefore, in a high thermal power gas burner that requires high thermal power such as Chinese food, a combination of multiple standard gas burner mixing tubes or a combination of standard gas burner mixing tubes and small gas burner mixing tubes is a so-called parent-child burner. In the gas burner, the gas supply passage to one of the mixing pipes can be freely closed to stop the gas supply as necessary, and if such a measure is taken, the capacity can be adjusted.
There is a problem in that the capacity switching adjustment structure in one cooking gas burner becomes complicated.

Further, in order to manufacture a gas cooker equipped with a high-fire gas burner and a low-fire gas burner, a high-fire gas burner and a low-fire gas burner are separately produced, and these are incorporated in the housing of the gas cooker. However, there is a problem in that standardization of parts cannot be achieved, the structure of such a gas cooker becomes complicated, and its production is troublesome. The present invention has been made in view of such a problem, and an object thereof is to easily perform switching of capacities such as high thermal power and low thermal power in a gas burner, and further, a high thermal power gas burner and a low thermal power gas burner. An object of the present invention is to provide a gas switchgear and a gas cooker for a gas burner for cooking, which can be manufactured easily by simplifying the structure of the gas cooker provided with.

[0005]

The present invention is a gas switchgear for a gas burner B for cooking, which ignites, extinguishes, and adjusts the amount of gas supplied to a gas to be supplied. A capacity adjusting valve 5 is provided in series with a gas amount adjusting valve 15 which is provided in the operating means 2 and can be operated by an operating tool 2X different from the operating means 2 described above. It is characterized by being configured.

A gas cooker having a gas burner B for cooking equipped with a gas switchgear for igniting, extinguishing the supplied gas and adjusting the gas supply amount, wherein the gas switchgear A has the following features. A gas amount adjusting valve 15 which is provided in the gas supply path 4 in the instrument and is operated by the operating means 2.
A capacity adjusting valve 5 is provided in series with respect to the above, and the capacity adjusting valve 5 is configured to be operable by an operation tool 2X different from the above-mentioned operation means 2. It is characterized by comprising individual pieces.

The operating tool 2X is provided on the front of the cooking device in the vicinity of the operating means 2.

[0008]

In the first aspect of the present invention, the gas supply path 4
By operating the capacity adjusting valve 5 inside, switching adjustment of the thermal power can be easily performed. Moreover, the thermal power switching configuration may be a simple improvement in which the capacity adjusting valve 5 is provided in series with the gas amount adjusting valve 15 in the gas supply path 4, and any one of them can be combined with a plurality of mixing pipes. Compared with the configuration such as stopping the gas supply to the heating power, the configuration for switching the thermal power can be greatly simplified, and the switching of the thermal power is performed by another operation tool 2X unlike the operation means 2, so that Switching can be done easily.

According to the second aspect of the present invention, one of the plurality of cooking gas burners B, B is switched to the high-power gas burner, for example, and the other is switched to the low-power gas burner. Further, the structure of a multifunctional gas cooker provided with a plurality of cooking gas burners B, B having different degrees of heating power is simplified to facilitate production.

Further, since the operating tool 2X is provided on the front surface of the cooking device in the vicinity of the operating means 2, the ability of the operating tool 2X can be easily switched and the switching state can be visually checked, which further facilitates use.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the embodiments shown in the accompanying drawings. The gas switchgear A is a gas oven, grill,
It is attached to the vicinity of the operation panel P on the front surface of the appliance of the appliance main body of the gas stove or the gas cooker in which these are combined. The gas switchgear A is provided with an ignition means, a fire extinguishing means, and a gas amount adjusting operation means. The gas switchgear A will be described below.

As shown in FIG. 1, the instrument stopper body 1 is formed with an inlet 8 and an outlet 9, and the gas introduced from the inlet 8 is supplied to the burner section 10 through the outlet 9. You can do it. Inside the instrument stopper body 1, a safety valve 11 is provided in order from the vicinity of the inlet 8 toward the outlet 9.
A valve hole 12 for the main valve 13, a valve hole 14 for the main valve 13, and a valve hole 16 for the gas amount control valve 15 are formed. The safety valve 11 that opens and closes the valve hole 12 is an electromagnetic valve, and the valve body 11a of the safety valve 11 is resisted against the spring 18 by the push rod 17 that is pushed by pushing the operation button as the operating means 2. The burner unit 1 is opened by a thermocoupling T which is opened apart from 12 and is electrically connected to the safety valve 11.
Combustion at 0 is detected by heat, and the open state of the safety valve 11 is maintained by the thermoelectromotive force associated with the combustion. This open maintenance causes the push rod 17 to separate from the valve body 11a when the operation button 2a is returned. However, when the combustion in the burner section 10 is unexpectedly extinguished and cut off, the safety valve 1 is formed by a solenoid valve by the exhaust heat signal from the thermocoupling T.
1 is automatically closed to ensure safety. The main valve 13 is attached to the push rod 17 in the valve hole 14 for the main valve 13, and the main valve 13 is opened by pushing the operation button 2a against the spring 19 to open the operation button 2a. When the pushing force is released, the main valve 13 can be closed by returning it together with the push rod 17 via the spring 19. The valve hole 16 is provided with a gas amount control valve 15 having a needle-shaped tip. The gas amount adjusting valve 15 is interlocked with the rotating operation of the operation button 2a (described later).
Is moved in the front-rear direction so that the gas flows into and out of the valve hole 16, and the flow rate of the gas amount from the valve hole 16 to the burner portion 10 can be adjusted.

In the gas passage G on the downstream side of the main valve 12 in the instrument plug body 1 in the gas supply direction, there is provided a purge flow passage 20 which connects a portion near the main valve 13 and an upstream portion of the gas amount adjusting valve 15. An on-off valve 21 is provided at the inlet of the purge flow path 20. This on-off valve 21 is opened by pushing the push rod 17 when pushing the operation button 2a to the ignition position, which is the deepest portion of the pushing stroke of the operation button 2a.
Upon return of a, the push rod 17 is returned by the spring 19 to close the on-off valve 21 and close the purge passage valve hole 22.

As described above, the purge passage 20 for increasing the gas supply amount to the burner portion 10 is connected to the gas passage G for supplying the gas to the burner portion 10, and the opening / closing valve 21 provided in the purge passage 20 is opened / closed. The operation button 2a at the time of ignition is configured by opening and closing the operation in conjunction with the ignition operation of the operation button 2a.
So as to supply gas from the gas passage G to the burner portion 10 and open the on-off valve 21 of the purge passage 20 to increase the amount of gas from the purge passage 20 so that reliable ignition can be performed. I am doing it.

Next, the operating system of the operating means 2 will be described in detail. As shown in FIGS. 3 and 4, the operation button 2a has a double structure in which the outer shell body 24 is rotatably mounted on the inner shell body 23, and the inner shell body 23 faces rearward. The protruding portion 25 is provided so as to project. A guide member 26 is attached to the instrument plug body 1 by a screw, and the guide member 26 is slidably fitted into an insertion hole portion 27 of the guide member 26. A spring 28 causes a protrusion 25 to spring out in a direction in which the protrusion 25 protrudes from the insertion hole portion 27. Power is on. A heart cam groove 29 is provided in the protruding portion 25. The heart cam groove 29 has a shape as shown in FIGS. 7, 8 and 9, and the first groove 29a and the second groove 2 are formed.
9b and the third groove 29c are formed to communicate with each other in a substantially heart shape, and the rear end of the first groove 29a is shallower than the third groove 29c.
The front end of the third groove 29c is shallower than the rear end of the second groove 29b, and the front end of the second groove 29b is shallower than the front end of the first groove 29a. The third groove 29c is formed so as to extend rearward. One end of a valve lock plate 31 is attached to a bottom surface near the front end of the guide member 26 so as to be rotatable around a shaft 30, and the front and rear direction of the guide member 26 is approximately at the center of the bottom surface of the guide member 26. Long holes 32 are formed in the intersecting direction. A hole 33 is provided at the rear end of the valve lock plate 31, and this hole 33 is a long hole 32 of the guide member 26.
It is provided at the position corresponding to. A shaft portion 34a of the rear end portion of the cam pin 34 having a U-shape is rotatably supported on the bottom surface near the rear end portion of the guide member 26.
The shaft portion 34b at the front end of the above is inserted into the heart cam groove 29 of the projecting portion 25 through the hole 33 and the long hole 32 of the valve lock plate 31. A valve pressing plate 35 is fitted on the guide member 26 so as to be movable with respect to the guide member 26. An opening portion 36 is provided in the valve pressing plate 35, and a shaft portion 34b of the front end portion of the cam pin 34 is inserted into the opening portion 36. A step 37 is provided at the rear edge of the opening 36.
A valve retainer 38 is provided on the valve retainer plate 35, and when the operation button 2a is pushed rearward, the abutted portion 39 provided on the protrusion 25 hits the valve retainer 38 and is pushed to move backward. It has become. Further, when the valve holding portion 38 moves, the front end portion of the push rod 17 is pushed and operated. 3 a, b, c, FIG. 7, FIG. 8 and FIG. 9, three different positions in the front-rear direction of the operation button 2a movable in the front-rear direction with respect to the instrument plug body 1 (state in which the gas passage is opened) The use position where the gas passage is continuously maintained, the fire extinguishing position where the gas passage is closed, and the ignition position where ignition is performed are shown, and further, the use position where the gas passage is continuously maintained in an open state, The positional relationship among the heart cam groove 29, the shaft portion 34b of the cam pin 34, and the slot 32 at the ignition position where the gas passage is closed and the ignition position where ignition is performed is shown. That is, at the fire extinguishing position of the operation button 2a shown in FIG. 7 (in the embodiment, the position where the front surface of the operation button 2a slightly protrudes from the front surface of the operation panel P of the instrument body is the fire extinguishing position) is set by the spring 28. Although the protruding portion 25 is pushed forward, the shaft portion 34b is the second portion of the heart cam groove 29.
The operation button 2a is located at a hooked portion of the rear end of the groove 29b and is held in position so that the operation button 2a does not project forward from the state of FIG. In this state, as shown in FIG. 8, when the operation button 2a is pushed backward against the spring force of the spring 28, the shaft portion 34b is guided by the second groove 29b and the second groove 29b.
b is moved to move from the front end of the second groove 29b to the front end of the first groove 29a. The state shown in FIG. 8 is a state of being pushed into the innermost position, and at this time ignition is performed as described later. When the pushing of the operation button 2a is released from the state shown in FIG. 8, the spring force of the spring 28 causes the operation button 2a to move.
Moves forward, the shaft portion 34b moves from the front end portion to the rear end portion of the first groove 29a, and further from the rear end portion of the first groove 29a to the third groove 29c to move the first groove 29a to the third groove 29c as shown in FIG. It moves to the rear end of the third groove 29c, and when it is located at the rear end of the third groove 29c, the operation button 2a is prevented from further moving and the protruding state of the operation button 2a is maintained. That is, the position where the front surface of the operation button 2a projects forward from the front surface of the operation panel P of the instrument body is the use position.

By the way, the valve retainer plate 35 is shown in FIGS.
As shown in FIG. 3, a switch holding portion 41 is provided, and the switch holding portion 41 only pushes the operation button 2a to move the valve holding plate 35 rearward and pushes it to the innermost part. (Not shown) is operated to ignite. In this case, at the ignition position, the shaft portion 34b moves along the elongated hole 32, the locking piece 31a at the rear end portion of the valve lock plate 31 is located in front of the step portion 37, and further, in this state, the operation button 2a. The push rod 17 is moved forward by the spring force of the spring 19 by releasing the push-in to the valve pressing plate 35 to move the valve pressing plate 35 forward, but the step 37 of the valve pressing plate 35 is locked. Piece 3
The forward movement is blocked by hitting 1a. Therefore, the push rod 17 remains stopped in a state of being moved slightly forward, keeping the main valve 13 in the open state and the on-off valve 21 in the closed state. Further, when the operation button 2a is pushed in from the use position where the gas passage G is continuously maintained open to move the operation button 2a to the fire extinguishing position as described above,
The shaft portion 34b moves in the long hole 32 to move the locking piece 31a into the step portion 3
Remove from 7. Then, the push rod 17 is pressed forward by the spring 19 so that the main valve 13 is closed.

The operation button 2a has a double structure in which the outer shell 24 is rotatably mounted on the inner shell 23 as described above. As shown in FIGS. 3 and 4, the outer shell 24 is configured by covering the outside of the cylindrical portion 24a with a cap 24b. An annular portion 46 is provided at the rear end of the outer shell 24,
The annular portion 46 is provided with a gear 47 as shown in FIGS. The adjusting rod 48 of the gas amount adjusting valve 15 is provided in the valve hole 16 in the instrument stopper main body 1 and the portion of the purge flow path 20 communicating with the valve hole 16.
Is inserted so that it can be pushed and pulled freely, and a pin 49 is projected orthogonally to the adjusting rod 48. The long hole 5 formed by facing the pin 50 to the tubular body 50 attached to the instrument stopper body 1
1 and the pin 49 is projected from the cylindrical body 50. A driven gear 52 is rotatably fitted in the cylindrical body 50, and a spiral groove 53 made of a double thread is formed in the inner peripheral portion of the driven gear 52, and both ends of the pin 49 are It is inserted in a spiral groove 53 formed by a double thread. The gear 47 of the annular portion 46 meshes with the driven gear 52. A cap 61 is attached to the tubular body 50, and an engaging claw 61a of the cap 61 is engaged with an engaging groove 50b of the tubular body 50 and attached. Collar of cap 61 and stepped portion 52 of driven gear 52
A spring 60 is interposed between a and a, and the spring force of the spring 60 gives a spring force for pressing the driven gear 52 toward the valve hole 16 side.

Therefore, the driven gear 52 is rotated by rotating the operation button 2a which is the gas amount adjusting operation means.
When the driven gear 52 rotates, the pin 49 inserted into the spiral groove 53 formed by the double thread is inserted into the long hole 51 and regulated so as not to rotate, and by the spring 60. Since the driven gear 52 is pressed toward the valve hole 16 side, the pin 49 moves in the front-rear direction along the long hole 51 and moves the adjusting rod 48 in the front-rear direction to open and close the valve hole 16 of the instrument stopper body 1. The degree is adjusted.

In the above structure, the present invention is, as shown in FIGS. 1 and 2, connected in series to the gas amount adjusting valve 15 which is provided in the gas supply path 4 in the instrument and operated by the operation button 2a. The capacity adjusting valve 5 is provided in the, and the capacity adjusting valve 5 can be operated by an operation tool 2X different from the operation button 2a. The configuration will be described in detail below. A main nozzle 72 is laid across a standing tube 70 integrally formed with the instrument body 1 and a mixing tube 71. Standing cylinder 7
No. 0, a needle valve 73 as the capacity adjusting valve 5 is arranged so as to face the capacity adjusting hole 74, and the needle valve 73 is rotatably and vertically movably inserted and held in the upright cylindrical body 70 via a seal ring 75. There is.

An L-shaped swinging piece 77 is swingably held by a pin 78 on a long and U-shaped frame frame 76 of the gas cooker C, and a hanging piece 77a at the tip of the swinging piece 77. A slanted groove 77b is transparently provided in the. A pin 73a is protrudingly held on the needle valve 73, and the pin 73a is held by the standing cylinder 7
The upper end of 0 is inserted into the open cut groove 70a, and the pin 73a is further inserted into the oblique groove 77b of the hanging piece 77a. Then, in the gas cooker C, a top plate 79 is put on the frame frame 76 formed in a square frame shape,
The burner portion 10 formed at the tip of the mixing tube 71 is exposed, and the top plate 79 is provided with the burner portion 80. Operation panel P at the lower edge of the top plate 79
An operation pin 2Xa as an operation tool 2X that is hung from the swinging piece 77 is hung on the front surface of the above and above the operation button 2a. The operation pin 2Xa is loosely inserted in the upper and lower arc holes 76a, 76a of the frame frame 76.

Then, by putting a finger on the operation pin 2Xa provided inconspicuously, the operation pin 2Xa is moved to the pin 7.
The needle valve 73 is swung up and down about eight times through the slanted groove 77b, the pin 73b and the cut groove 70a by such swinging, and the opening degree of the capacity adjusting hole 74 is changed.
The thermal power can be switched to drastically change the amount of gas supplied. In this case, the diameter of the valve hole 16 of the needle valve 15a in the gas amount adjusting valve 15 is 0.49 mm.
The diameter of the needle hole 73b of the needle valve 73 of the capacity adjusting valve 5 is about 1.50 mm, and the diameter of the main nozzle 7 is about 1.50 mm.
The hole diameter of the second valve hole is about 1.55 mmΦ, and in such a setting, the operation pin 2Xa is oscillated and displaced to the high thermal power position a and the operation pin 2Xa is oscillated to the low thermal power position b. FIG. 2 (d) shows the characteristics of the switching of the heating power in this case.

As described above, the gas amount adjusting valve 1 provided in the gas supply path 4 in the instrument and operated by the operating means 2
5, a capacity adjusting valve 5 is provided in series, and the capacity adjusting valve 5 is configured to be operable by an operation tool 2X different from the operation means 2, so that the capacity adjusting valve 5 in the gas supply path 4 is By operating the operation pin 2Xa, the heat power can be easily changed and adjusted. Moreover, the thermal power switching configuration is such that the gas amount adjusting valve 15 in the gas supply path 4 is
On the other hand, a simple improvement in which the capacity adjusting valve 5 is provided in series is sufficient, and compared with a configuration in which a plurality of mixing pipes are combined and gas supply to any one of them is stopped, a heating power switching configuration It can be greatly simplified, and since the switching of the heating power is performed by another operating tool 2X unlike the operating means 2, the switching of the heating power can be easily performed.

By the way, in the gas cooker C, as shown in FIG.
As shown in FIG. 0, two cooking gas burners B are provided, and one of these two cooking gas burners B, B is switched to a high thermal power gas burner by operating the operation tool 2X, and the other. In the configuration of a multi-functional gas cooker including a plurality of cooking gas burners B, B in which the heating power is switched to the low-fired gas burner by operating the operation tool 2X, and thus the degree of the heating power is changed, Compared with the configuration in which the specifications of the cooking gas burners B, B are made different, the overall configuration is simplified, the production is facilitated, and the subsequent switching of the heating power is also facilitated.

In the above embodiment, an example of the operation button 2a that rotates as the operation means 2 is shown, but a lever that rotates can be used. Further, the holding structure for holding the operation button 2a at the above-mentioned three positions can be modified in various designs other than the above-mentioned structure of the heart cam groove 29 and the like. The configuration of the heart cam groove 29 and the like is well known,
This is disclosed in detail by the applicant in Japanese Patent Application No. 5-5740.

[0025]

According to the first aspect of the present invention, as described above, the capacity adjusting valve is provided in series with the gas amount adjusting valve which is provided in the gas supply path in the instrument and operated by the operating means. Since the capacity adjustment valve can be operated by an operation tool different from the above-mentioned operation means, there is an advantage that the heat power switching adjustment can be easily performed by operating the capacity adjustment valve in the gas supply path. . Moreover, the switching configuration of the thermal power may be a simple improvement in which the capacity adjustment valve is provided in series with the gas amount adjustment valve in the gas supply path,
Compared with a configuration in which a plurality of mixing pipes are combined and gas supply to any one of them is stopped, there is an advantage that the thermal power switching configuration can be greatly simplified.

Further, in claim 2, since a plurality of cooking gas burners having the gas opening / closing device are provided, as in the case of claim 1, by operating the capacity adjusting valve in the gas supply path, The heating power for the cooking gas burner can be easily adjusted, and the heating power can be switched by simply improving the capacity adjustment valve in series with the gas amount adjustment valve. Compared with the configuration such as stopping the gas supply to any one of them, the configuration for switching the heating power can be greatly simplified, and in particular, one of the plurality of cooking gas burners is switched to, for example, a high thermal power gas burner. Multi-function gas equipped with multiple cooking gas burners with different degrees of heat power in this way. There is an advantage that the manufacturing and simplify the configuration of the physical device easily.

Further, in the third aspect, since the operating tool is provided on the front surface of the cooking device in the vicinity of the operating means, the ability can be easily switched by the operating tool, and the switching state can be visually observed, which makes it easier to use. There is an advantage.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a usage state of the present invention.

2A is a partial perspective view, FIG. 2B is a partial front view, FIG.
(C) is a partial front view, and (d) is a characteristic diagram showing a thermal power switching characteristic.

FIG. 3 is a sectional view of the same, with some parts omitted.

FIG. 4 is a partially exploded perspective view of the above.

5A is a front view showing a positional relationship between a driven gear and a gear in a small fire state, and FIG. 5B is a sectional view.

6A is a front view showing a positional relationship between a driven gear and a gear in a large fire state, and FIG. 6B is a sectional view.

7 (a) and 7 (b) are partially cutaway side views showing the position of the operating means when the operating means is located at the fire extinguishing position and partially broken side views showing the heart cam groove portion. is there.

8A and 8B are a partially cutaway side view showing the position of the operating means and a partially broken side view showing the heart cam groove portion when the operating means is located at the ignition position. is there.

9 (a) and 9 (b) are a partially cutaway side view showing the position of the operating means and a partially broken side view showing the heart cam groove portion when the operating means is located at the use position. is there.

FIG. 10 is an overall front view of the above.

[Explanation of symbols]

 2 Operation means 2X operation tool 4 Gas supply path 5 Capacity adjustment valve 15 Gas amount adjustment valve A Gas switchgear B Cooking gas burner C Gas cooker

Claims (3)

[Claims] 1. A gas opening / closing device for a gas burner for cooking, which ignites, extinguishes, and adjusts a gas supply amount of a supplied gas, which is provided in a gas supply path in an appliance and operated by an operating means. The gas opening / closing device for the cooking gas burner, wherein a capacity adjusting valve is provided in series with the gas amount adjusting valve, and the capacity adjusting valve can be operated by an operation tool different from the operation means. . 2. A gas cooker having a gas burner for cooking, which is equipped with a gas switchgear for igniting, extinguishing the supplied gas, and adjusting the amount of gas supply, wherein the gas switchgear has an internal device. A capacity adjusting valve is provided in series with the gas amount adjusting valve provided in the gas supply path and operated by the operating means, and the capacity adjusting valve can be operated by an operating tool different from the operating means. , A gas cooker comprising a plurality of cooking gas burners provided with such a gas opening / closing device. 3. The gas switchgear for a cooking gas burner according to claim 1, or the gas cooker according to claim 2, characterized in that the operation tool is provided on the front surface of the cooker near the operation means.