JPH0311556Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a gas ignition device that supplies gas to a burner section by operating an operation button, and operates an ignition means to ignite the gas in the burner section. This invention relates to techniques for making fire extinguishing configurations more advantageous while improving

[Background Art] Conventionally, in a gas ignition device that supplies gas to a burner section by operating an operation button and operates an ignition means to ignite the gas in the burner section, as shown in FIG. 29, an ignition button 1a, There was a problem in that the fire extinguishing button 1b and the gas amount adjustment lever 1c were provided independently, and their operability was low. To solve this problem, the number of operation buttons is reduced to one, gas is supplied to the burner by pressing the operation button, and the amount of gas is changed and adjusted by rotating the pressed operation button. There is also a configuration in which the ignition means is operated at the end of the rotation to ignite the ignition, but in such a configuration, the ignition operation in the burner section is performed by pressing the operation button and then rotating the operation button. In this case, when the ignition operation is performed in two steps, it takes a short time to reach a gas concentration sufficient for ignition in the burner section during the initial ignition in the burner section. Another problem was that the two operations of pushing and rotating had to be repeated many times, resulting in poor operability for ignition. In addition, when extinguishing a fire, the operation button must be rotated to the closed position, and although the gas supply to the burner section can be cut off to emergency stop combustion, it is difficult to operate, and the gas supply There was a problem that it was difficult to make an emergency shutdown. Furthermore, there is a need for a configuration that can withstand considerable heating and operate stably over a long period of time in terms of ignition and extinguishing configurations.

[Purpose of the invention] The present invention was made in view of these problems, and its purpose is to improve the operability for ignition, and in particular, to improve the operability for extinguishing a fire. It is an object of the present invention to provide a gas ignition device which can easily perform emergency cutoff of gas supply and which can have an advantageous extinguishing configuration.

[Disclosure of the Invention] The gas igniter of the present invention is configured such that the operation button 1 can be pressed and operated freely against a spring force, and in the middle of the push stroke S of the operation button 1, the operation button 1 is in a standby state for operation. Operation button 1 in operation standby position
A standby holding means B is provided to hold the operation button 1 in the operation standby position, and when the operation button 1 is pushed in, the gas supply valve V is opened to supply gas to the burner part 2 and the ignition means 3 is activated.
With the release of the external force to the operation button 1 at the innermost part of the push stroke S, the gas supply valve V Mechanical ignition maintenance means F using a cam mechanism to continuously maintain the open state of
, and is configured to extinguish the fire by unlocking the mechanical ignition maintaining means F in conjunction with pushing the operating button 1 in the protruding position into the operating standby position during the pushing stroke S. By configuring it in this way, the above object has been achieved. That is, by pressing the operating button 1 to open the gas supply valve V to supply gas to the burner section 2 and activating the ignition means 3, the ignition operation can be performed by pressing the operating button 1. During the initial ignition in the burner section 2, it takes a short time to reach a gas concentration sufficient for ignition in the burner section 2, and the ignition operation is repeated many times. , it is only necessary to perform one action of pushing the operation button 1 many times, which greatly improves the operability compared to the conventional method that requires two actions of pushing and rotating many times. In this invention,
By configuring the mechanical ignition maintaining means F to be unlocked and extinguished in conjunction with pushing the operation button 1 in the protruding position to the operation standby position during the push stroke S, the button 1 can be extinguished after the ignition operation. By pressing the operating button 1 in the position, the mechanical ignition maintaining means F can be released and the gas supply valve V can be closed to extinguish the fire. can be easily and easily stopped in an emergency, and by using a mechanical cam mechanism, the fire extinguishing structure can be mechanically configured, which can avoid the effects of heat as much as possible compared to an electric fire extinguishing structure. This makes it possible to reduce the need to take heating measures, which is advantageous in gas igniters.

Embodiments of the present invention will be described in detail below based on the drawings.

The gas igniter A is attached to the operation panel P on the front of the appliance body D of a gas appliance such as a gas oven, a grill, a gas stove, or an integrated type in which these are combined.The gas igniter A will be described in detail below. explain.

A valve casing 10 made of die-cast aluminum is attached to the top surface of the board 9 with screws.
The valve casing 10 has an inlet 11 and an outlet 1.
2 is formed so that the gas introduced from the inlet 11 can be supplied to the burner section 2 through the outlet 12. Valve casing 1
Inside the 0, from the vicinity of the inlet 11 to the outlet 12, there are a valve hole 14 for the safety valve 13, a valve hole 15 for the main valve 21 as the gas supply valve V, and a valve for the gas amount adjustment valve 8. A hole 16 is formed. The safety valve 13 that opens and closes the valve hole 14 is a solenoid valve, and a push rod 18 is pushed in when the operation button 1 is pressed.
The valve body 13a of the safety valve 13 is moved away from the valve hole 14 against the spring 19 to open the safety valve 13, and the combustion in the burner section 2 is made heat-sensitive by the thermocoupling T electrically connected to the safety valve 13. The open state of the safety valve 13 is maintained based on the result of heat sensitivity associated with combustion, and this open state is maintained regardless of the separation of the push rod 18 from the valve body 13a due to returning the operation button 1. If the combustion in the section 2 is unexpectedly extinguished and cut off, a safety valve 13 of the electromagnetic valve is automatically closed by a non-thermal signal from the thermocoupling T to ensure safety. A main body 21 as a gas supply valve V is attached to a push rod 18 in the valve hole 15 for the main valve 21, and the main valve 21 is opened by pushing the operation button 1 against the spring 20. When the pushing force on the operation button 1 is released, the main valve 21 can be returned together with the push rod 18 via the spring 20 and the main valve 21 can be closed. The gas amount adjusting valve 8 is provided in the valve hole 16 for the gas amount adjusting valve 8, and the gas amount adjusting valve 8 is moved into and out of the valve hole 16 in conjunction with the rotation operation of the operation button 1 (described later). This allows the amount of gas flowing from the valve hole 16 to the burner section 2 to be changed and adjusted.

In the gas supply path 4 on the downstream side of the main valve 21 in the gas supply direction within the valve casing 10, a bypass 5 is formed that communicates a portion near the main valve 21 with a portion upstream of the gas amount adjustment valve 8. , an on-off valve 6 is provided at the inlet portion of this bypass 5.
The on-off valve 6 is opened by pushing the valve stem 22 when the operating button 1 is pushed to the ignition position, which is the deepest part of the pushing stroke S, and the valve stem 22 is returned by the spring 23 when the operating button 1 returns. The bypass valve hole 24 can be closed by closing the on-off valve 6 and closing the bypass valve hole 24.

In this way, the bypass 5 that increases the amount of gas supplied to the burner section 2 is connected to the gas supply path 4 that supplies gas to the burner section 2, and the opening/closing operation of the on-off valve 6 provided in the bypass 5 is controlled by the operation button 1. By configuring the structure so that it can be opened and closed in conjunction with the ignition operation, gas is supplied from the gas supply path 4 to the burner section 5 by pressing the operation button 1 at the time of ignition, and the bypass 5 is
By opening the on-off valve 6, the amount of gas from the bypass 5 is increased, and even if the amount of gas is set to a small amount (weak), sufficient ignition can be achieved.

Next, the operation system of the operation button 1 will be explained in detail.

As shown in FIG. 3, the operation button 1 has a double structure in which an outer shell 30 is rotatably covered with an inner shell 29, and the inner shell 29 has a plate member that is long in the inner and outer directions. 31 are integrally extended. The valve casing 10 includes an upper guide plate 33 made of synthetic resin,
A lower guide plate 32 is attached to the upper guide plate 33 by screws or the like, and is spaced apart from the upper guide plate 33 by a fixed distance.
1 is slidably inserted therethrough, and the operation button 1 can be pushed in the front and rear directions to be operated. A pusher body 41 is formed on the inner shell body 29 of the operation button 1, and the pusher body 41 can be freely inserted into a guide cylinder portion 60 formed on the upper guide plate 33, so that the operation button 1 can be pressed and operated smoothly. There is. At the top of the board 9 is a pivot point 6.
1 is formed, and a presser plate 6 is formed on this pivot portion 61.
2 is rotatably pivoted around a shaft 63, and by rotating the holding plate 62 around the shaft 63, the push rod 18 for the main valve 21 and the valve rod 22 for the bypass can be pushed and operated. be. A spark discharge section 42 constituting the ignition means 3 is disposed near the burner section 2, and a switch 43 of the energizing circuit to the spark discharge section 42 is moved, for example, to the innermost part of the push stroke S of the operation button 1. It can be closed by pushing the button.

However, the push stroke S of operation button 1 is
Along with the pushing operation to the innermost part, the push rod 18 is pushed in through the press plate 62 by the push body 41 of the operation button 1, and gas is supplied to the burner part 2 and, for example, the tip of the operation button 1, etc. The switch 43 is turned on at , a high voltage is applied to the spark discharge section 42 via the igniter 17, a spark discharge is performed in the spark discharge section 42, and the burner section 2 can be ignited. be. The configuration of such ignition means 3 can be modified in various ways.

A return spring 34 is interposed between the inner shell body 29 of the operation button 1 and the upper guide plate 33, and the operation button 1 is biased to protrude further forward than the operation panel P on the front surface of the gas appliance. be. A pin 7 is provided downwardly protruding from the plate 31 of the operation button 1, and the pin 7 has a large diameter portion 7a at its base end and a small diameter portion 7b at its tip. The lower guide plate 32 is formed with a long hole 35 that is long in the front-rear direction, and the large-diameter portion 7a of the pin 7 is inserted into the long hole 35 so that it can guide the movement of the operation button 1 in the front-rear direction. . On the lower surface of the lower guide plate 32, a cam plate 36 made of a thin metal plate and constituting the cam mechanism C is rotatable in the plate surface direction (horizontal direction) around a shaft 37, and a coiled spring 38 is wound around the shaft 37. Against this, the free end side of the cam plate 36 is pivotally mounted downward as shown in the arrow direction in FIG. 3A. A lower guide plate 3 to which one end of a coiled spring 38 wound around a shaft 37 is fixed.
2 and by bringing the other end of the coiled spring 38 into elastic contact with the cam plate 36, the cam plate 36 is urged to rotate in the direction of the plate surface, and the contact portion 39 at one end of the cam plate 36 is guided downward. By abutting the stopper 40 of the plate 32, the return position of the cam plate 36 can be determined. As shown in FIG. 21, the cam plate 36 is formed with an inclined side 36a, a cam groove 36b connected thereto, a locking piece 36c, and a guide groove 36d, and the locking piece 36c has its free end bent downward. The lowermost end is located below the lower end of the pin 7.

However, as shown in FIG. 25, when the operation button 1 is located close to the operation panel P of the gas appliance, the pin 7 is engaged in the recess 36e of the cam groove 36b of the cam plate 36, and the operation Button 1 returns spring 3
4, the operation button 1 is prevented from returning to the protruding position, and in the middle of its push stroke S, the operation button 1 is in the operation standby position where the operation button 1 is in the operation standby state. It is held close to the front surface of the instrument main body D. The configuration for holding the operation button 1 in the operation standby position in this manner is called standby holding means B, and its configuration can be modified in various ways. Next, by pushing the operation button 1 in the operation standby position, the pin 7 on the operation button 1 side moves to the back of the long hole 35 of the lower guide plate 32, as shown in FIG. The plate 36 is rotated to the right in FIG. 26 by the spring force of the coiled spring 38, and when the operation button 1 is pushed to the innermost part, the push rod 18 is pushed in as described above and the burner part 2 is moved. Supply gas and press operation button 1
At this point, the switch 43 of the ignition means 3 is turned on, and ignition is performed by spark discharge. In this ignition state, when you release your finger from the operating button 1, the operating button 1 switches to the second
As shown in FIG. 7, the return spring 34 returns the operating panel P to the protruding position. That is, in the return process of the operation button 1, the pin 7 on the operation button 1 side is connected to the locking piece 3 bent below the guide plate 33.
6c, and passes through the upper surface of the cam plate 36 and through the elongated hole 35 of the guide plate 33 while swinging the guide plate 33 downward in the direction of the arrow in FIG. While maintaining the ignition state in this way, the operating button 1 is held in a protruding position that protrudes beyond the front surface of the appliance, and in the protruding state where the operating button 1 protrudes beyond the front surface of the appliance, the user can use the operating button 1 to indicate that the ignition is in progress. To easily and reliably notify the ignition state while greatly improving operability.

Next, when the operation button 1, which protrudes from the operation panel P and is in the process of burning in the burner section 2, is pushed in, the pin 32 on the operation button 1 side is moved to the cam plate 36.
The cam plate 36 is rotated to the left in FIG. 28 against the coiled spring 38, and the leftward rotation of the cam plate 36 activates the mechanical ignition maintaining means described below. F is released, the main valve 21 serving as the gas supply valve V is shut off, gas supply to the burner section 2 is stopped, and combustion in the burner section 2 is stopped.
The pin 7 of the operation button 1 is connected to the cam groove 3 of the cam plate 36.
6b, and the recess 36e at the back of the cam groove 36b.
25, and is operated to the operation standby position shown in FIG. Mechanical ignition maintenance means F below:
The configuration and its release configuration will be explained in detail.

As shown in FIG. 8, a piece to be locked 65 is suspended from one end of the holding plate 62 in the width direction, and a piece to be guided 66 is suspended from the other end in the width direction. The guided piece 66 is brought into sliding contact along the edge of the cut groove 67 of the lower guide plate 32, so that the holding plate 62 can be rotated around the shaft 63 without wobbling in the width direction. A locking piece 68 as shown in FIG. 12 is pivotally attached to the upper surface of the lower guide plate 32 via a pin 69 so as to be freely rotatable in the horizontal direction. A coil spring 70 is wound around the pin 69, and one end of the coil spring 70 is brought into contact with the lower guide plate 32, and the other end is elastically contacted with the base end of the lock piece 68, so that the hook portion 71 of the lock piece 68 presses against the plate. 62 is biased to rotate toward the locked piece 65 side. Further, a receiving piece 72 is suspended from the locking piece 68, and this receiving piece 72 is inserted into an escape groove 73 connected to the cut groove 67 of the lower guide plate 32.
It is compatible with. And the lock piece 68 is the operation button 1.
It is approximately at the same level as the plate material 31 of.

However, in the combustion state where the operation button 1 protrudes from the operation panel P as shown in FIG.
The locked piece 65 of the presser plate 62 is hooked on the hook portion 71 of the lock piece 68, and the presser plate 62 is prevented from being returned by the spring 20 via the push rod 18, and the main valve 21 maintains its development. In such a combustion state, when the operation button 1 is pushed in, the pin 7 rotates the cam plate 36 to the left as shown in FIG. , release the lock piece 68, release the lock, push the presser plate 62 toward the operation button 1 with the push rod 18, close the main valve 21, and press the operation button 1 in this way to close the main valve 21. It closes mechanically. Next, as shown in FIG. 25, by pushing in the operation button 1 which is close to the operation panel P and is in the extinguishing position, the above-mentioned ignition operation is performed and the locked piece 65 of the presser plate 62 engages the locking piece 68. By rotating against the coiled spring 70, the locked piece 65 passes through the hook part 71 of the locking piece 68, and in the return process after ignition, the hook part 71 engages with the locked piece 65 and holds it down. A lock is applied to prevent the plate 62 from returning further, and only the operation button 1 is returned to maintain the open state of the main valve 21 in which the push rod 18 is pushed in by the locked presser plate 62.

An annular body 45 is also protruded inward from the end opening edge of the bowl-shaped outer shell 30 of the operation button 1, and this annular body 45 is slidably connected to the end opening edge of the bowl-shaped inner shell 29. By doing so, the outer shell 30 is configured to be rotatable with respect to the inner shell 29. Gear 4 is attached to the annular body 45.
6 is formed. An adjustment rod 48 of the gas amount adjustment valve 8 is inserted into the bypass valve hole 24 portion of the valve casing 10 so as to be rotatable, pushable and pullable, and a pin 49 is protruded perpendicularly to the adjustment rod 48. 49 is formed to face the cylindrical body 50 attached to the valve casing 10.
1 and 51 to protrude from the cylindrical body 50, and the protruding pin 49 is inserted into the groove 52 of the driven gear 47 rotatably provided in the cylindrical body 50. A gear 46 is meshed with a driven gear 47. Therefore, by rotating the outer shell body 30 regardless of the operating position to which the operation button 1 is pressed, the driven gear 47 is rotated, and the adjustment rod 48 is rotated via the pin 49.
Rotate and push/pull the bypass valve hole 24.
It is possible to change and adjust the gas amount by changing and adjusting the opening amount.

[Effects of the invention] In summary, the present invention is configured to open the gas supply valve and supply gas to the burner section and operate the ignition means by pressing the operation button. It can be done with one action of pressing a button, and at the time of initial ignition in the burner section,
Since it takes a short time to reach a sufficient gas concentration for ignition in the burner section, the ignition operation is performed many times, but the ignition operation requires only one action of pushing the operation button many times. The operability can be greatly improved compared to the conventional method that performs two movements of pushing and rotating many times. The mechanical ignition maintaining means is unlocked and extinguished when the button is pushed into the operation standby position, so the mechanical ignition maintaining means is released by pushing in the operating button in the protruding position after the ignition operation. The fire can be extinguished by closing the gas supply valve.
Combustion in the burner section can be stopped easily and easily by pressing the operation button, and the fire extinguishing structure can be mechanically configured by using a mechanical cam mechanism. The effects of heat can be avoided compared to traditional fire extinguishing configurations,
This has the advantage of reducing the need to take heating measures, which is advantageous in gas igniters.

[Brief explanation of drawings]

Fig. 1 is an overall perspective view of a gas appliance according to an embodiment of the present invention, Fig. 2 is a perspective view of the same gas igniter as above, and Fig. 3 a and b are used with the same as above partially cut away (ignition maintenance) Cross-sectional view showing the state, developed cross-sectional view, Figure 4a,
b is a partially broken bottom view and plan view of the same as above, Fig. 5 is a front view showing the relationship between the same operation button and driven gear as above, Fig. 6 is a front view of the same as above board, and Fig. 7 is a side view of same as above. 8 is a perspective view of the holding plate shown above, FIG. 9 is a front view shown above, FIG. 10 is a right side view shown above, FIG. 11 is a left side view shown above, and FIG. 12 is a lock shown above. A bottom view of the piece, Figure 13 is a side view of the same as above,
FIG. 14 is a bottom view of the upper guide plate same as above, FIG. 15 is a front view same as above, FIG. 16 is a partially broken side view of same as above, FIG.
Fig. 18 is a bottom view of the lower guide plate of the same as above, Fig. 19 is a side view of the same as above, Fig. 20 is a partially broken front view of the same as above, Fig. 21 is a bottom view of the cam plate of same as above,
Figure 2 is a left side view of the same as the above, Figure 23 is a right side view of the same as the above, Figure 24 is a rear view of the same as the above, and Figure 25 shows the relationship between the cam plate, lock piece and lower guide plate in the extinguished state of the same as the above. Fig. 26 is an explanatory diagram of the operation in the ignition state, Fig. 27 is an explanatory diagram of the operation in the usage state, Fig. 28 is an explanatory diagram of the operation in the unlocked state, and Fig. 29 is the conventional example. 1 is a front view of the operation button, 2 is a burner section, 3 is an ignition means, B is a standby holding means, C is a cam mechanism, D is a main body of the instrument, F is a mechanical ignition maintaining means, S is a pushing stroke, V is a gas supply valve.

Claims (1)

[Scope of utility model registration request] The operation button is configured to be freely pushed and operated against a spring force, and a standby holding means is provided for holding the operation button at an operation standby position where the operation button is in an operation standby state during the push stroke of the operation button. When the operating button at the standby position is pressed, the gas supply valve is opened to supply gas to the burner section and the ignition means is activated, and as the external force is released to the operating button at the innermost part of the pushing stroke, In the return process of the operation button which protrudes forward from the standby position of the operation button from the deepest part of the pushing stroke, a mechanical ignition maintaining means using a cam mechanism is provided to continuously maintain the open state of the gas supply valve. A gas ignition device configured to extinguish a fire by unlocking a mechanical ignition maintaining means in conjunction with pushing a position operating button to an operation standby position during a push stroke.