JPH0319447B2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a burner nozzle opening/closing member that is connected with a cable to a push button that can be pushed against spring elasticity, and the push button is pushed in and held in the pushed state. This invention relates to an automatic return device for a push button for gas bath ignition, which opens a burner and maintains it in the ignited state, and after a predetermined period of time has elapsed, automatically returns the push button to its original position using a timer to extinguish the fire.

Prior Art Conventionally, as a push button device for igniting a gas bath equipped with an automatic extinguishing function using a timer, as shown in JP-A No. 58-197531, a push button device connected to a nozzle opening/closing member of a burner is disclosed. A sliding plate b has a cutout hole c on the lower surface of the pressed push button a, and is biased with a moving force in the direction of the arrow A by spring elasticity.
, push the push button a by pressing the edge d of the notch hole c with the slope provided on the push button a, and pushing the sliding plate b while moving it from the position b ₁ in a direction against the spring force, The push button a is held in the pressed state by locking the hook provided at the upper end of the slope with the mouth edge d of the notch hole c that has moved back after coming off the slope,
And, with the mouth rim d against the back end of the hook part, slide the sliding plate b.
is locked in the _b2 position, and a driving force in the opposite direction is stored in the mainspring spring by clockwise rotation of the rotating shaft f connected to the operating knob on the side of one end of the sliding plate b. At the same time, a timer e is provided, which moves the pressing body g fixed to the rotating shaft f forward, and uses the accumulated force to move the pressing body g back at a constant speed in the opposite direction, so that the pressing body g is at the set position. g ₂ to original position
While rotating back to g ₁ in the counterclockwise direction, the pressing body g
The tip of the slide plate b presses the end of the slide plate b and is retracted to the _b3 position to release the hook from the lip d of the notch c, thereby returning the push button a to its original position. There are known devices that allow it to move.

Problems to be Solved by the Invention However, the push button automatic return device having such a structure has a rotation axis f to set the timer.
When rotating clockwise, the pressing body g presses the sliding plate b during the rotation and moves it to the _b3 position, so if you set the timer after holding the push button a in the pressed state, In this case, the push button a returns to its original position against the user's will, and the timer can therefore only be set before the push button a is pressed, resulting in operational inconvenience.

The present invention has been completed in view of the above points, and is a gas bath ignition device that allows the timer time to be set at any time both before and after pressing the push button. The object of the present invention is to provide an automatic return device for a push button.

Embodiment Hereinafter, an embodiment of the present invention will be described based on the accompanying drawings.

1 is a mounting body fixed within the case 2,
Three sliding holes 3, 4 and 5 are formed in a line in this mounting body 1, and in each sliding hole 3, 4 and 5, pilot burner ignition sub-tubes are installed sequentially from the left side in FIG. The button 6, the main button 7 for igniting the main burner, and the extinguishing button 8 are fitted in a freely sliding manner, and due to the elastic expansion force of the compression coil springs 9, 10, and 11 attached to the lower surface of each button 6, 7, and 8. ,
Each button 6, 7 and 8 has a case 2 at its upper end.
As shown in FIG.
One end of the inner cable 15 of the push-pull cable 13 is fixed, and the other end is connected to an on-off valve and a spark generator of a pilot burner (not shown). , main button 7
As shown in Fig. 3, the inner cable 1 of the push-pull cable 13 has the same structure as above.
One end of the burner 5 is fixed, and the other end is connected to an on-off valve (not shown) of the main burner.

On the side of each button 6, 7, and 8, a shaft 17 parallel to the direction in which the buttons are arranged is inserted between both left and right ends of the mounting body 1 through bearings 18, 18 protruding from the bottom plate of the mounting body 1. The base end of a rocking plate 20, which is elongated in the direction in which the buttons 6, 7, and 8 are arranged in parallel, is supported on this shaft 17 so as to be able to swing freely. At the corresponding position, as shown in FIG.
As shown in FIG. 4, a third engaging member 28 having a hook-shaped protrusion 29 at its tip is also integrally formed at a position corresponding to the rocking plate 20 and the bottom plate of the mounting body 1. Torsion coil spring 3 installed between
With a spring force of 0, the first engagement member 21 and the third
A rocking force is applied to the engaging member 28 in a direction in which the respective projections 22 and 29 approach the sub button 6 and the fire extinguishing button 8, and the rocking plate 20 is located at a position corresponding to the main button 7. Outside of the third
As shown in the figure, it has a hook-shaped protrusion 25 at the tip,
In addition, the base end of the second engaging member 24, which has a contact surface 26 that contacts the rocking plate 20 on the inner surface, is attached to the shaft 1 described above.
The spring force of the torsion coil spring 30a installed between the second engaging member 24 and one of the bearings 18 allows the second engaging member 24 to swing freely. The contact surface 26 contacts the swing plate 20, and a swing force is applied in the direction in which the protrusion 25 approaches the main button 7.

As shown in FIG. 2, the sub-button 6 has the first
a slope 31 that engages with the protrusion 22 of the engagement member 21 to allow the sub-button 6 to be pressed while swinging the rocking plate 20 in a direction that resists the spring elasticity;
A hook portion 32 that locks onto the lower surface 22a of 2 to hold the sub-button 6 in the pressed state and holds the rocking plate 20 in a state in which it is swung at a certain angle against the spring elasticity is sequentially moved in the pushing direction, As shown in FIG. 3, the main button 7 has a second engaging member 24.
A blocking portion 34 that hits the protrusion 25 of the main button 7 and prevents the main button 7 from being pressed, and a second engagement member 34 that hits the protrusion 25 of It engages with the protrusion 25 of the mating member 24 and swings the second engagement member 24 in a direction that resists the spring elasticity, and is engaged with the slope 35 that allows the main button 7 to be pressed and the lower surface 25a of the protrusion 25. a hook portion 3 that holds the main button 7 in a pressed state;
6 are formed sequentially in the pushing direction, and as shown in FIG. Only a slope 38 is formed that releases the locking of the hook portion 32 from the first engaging member 21 and the locking of the hook portion 36 from the second engaging member 24 by swinging in a direction that resists the spring elasticity. There is.

A shaft 41 extends along the direction in which the buttons 6, 7, and 8 are arranged side by side on a support portion 40 that protrudes from the right end of the mounting body 1 to which the buttons 6, 7, and 8 described above and the swing plate 20 are attached. A wide insert 4 is provided at the tip of the projecting body.
2 is rotatably supported with its right side in the width direction facing into an opening 44a of a mounting part 44 formed at the right end of the case 2, and is mounted between the insert 42 and the support part 40. Due to the spring force of the torsion coil spring 43 having a spring force weaker than that of the torsion coil spring 30, the lower end of the left side portion of the insert 42 forms the right end of the rocking plate 20. The above-mentioned mounting portion 44 is equipped with a clockwork timer 46 whose rotation center is an axis substantially parallel to the direction in which the buttons 6, 7, and 8 are arranged side by side. , this timer 46 stores a spring force in the mainspring by manually rotating the rotational operation member 47 clockwise when viewed from the right side of FIG. 47 is configured to move back counterclockwise at a constant speed, and there is a lock on the outer periphery of the surface of the rotational operation member 47 that corresponds to the engaging portion 45 of the swing plate 20, which cannot be engaged with the engaging portion 45. A protruding drive piece 48 is provided that is spaced apart and can engage with the lower end of the right side of the insert 42 facing into the opening 44a.
Before setting the timer 46, FIG.
As shown in FIG. 2, the insert member 42 is spaced apart from the insert member 42 in the clockwise direction.

Next, the operation of this embodiment will be explained.

When the sub-button 6 is pushed in against the spring force of the compression coil spring 9 from the state shown in FIGS. 1 and 2a, the inclined surface 31 moves against the protrusion of the first engaging member 21, as shown in FIG. 2b. By pressing the portion 22, the first engaging member 2
1 and the rocking plate 20 integrated therewith are pushed in while rocking clockwise against the spring force of the torsion coil springs 30 and 30a, and when the hook portion 32 exceeds the protrusion 22, as shown in FIG. As shown in FIG. 2, the lower surface 22a of the protrusion 22 of the first engaging member 21 is engaged with the hook 32, and the sub-button 6 is held in the pressed state, and the opening/closing valve of the pilot burner is opened and the spark generator is turned off. The pilot burner is ignited by the continuous generation of sparks, and at the same time, the rocking plate 20 is held in a clockwise rocking state at a constant angle, as shown in FIG. 3b. The second engaging member 24 engages the protrusion 25 with the main button 7.
Since the main button 7 is held in a state separated from the blocking portion 34 so that it cannot engage, after confirming that the pilot burner has been ignited by the ignition confirmation indicator, the main button 7 is moved from the state shown in FIG. 3b to the compression coil spring 10. When it is pushed in against the spring force of
It is pushed in while being swung clockwise against the spring force of 0a, and during this time, the spring force of the torsion coil spring 30 acts on the oscillating plate 20, thereby causing the hook portion 32 to engage with the first engaging member 21. The sub-button 6 continues to be held in the pressed state, and when the main button 7 is pushed in and the hook portion 36 exceeds the protrusion 25 of the second engaging member 24, as shown in FIG. 3d. As such, the lower surface 25a of the protrusion 25 is engaged with the hook 36, the main button 7 is held in the pressed state, the main burner release valve is opened, and the main burner is ignited.

When automatically extinguishing a fire using a timer,
The time can be set by rotating the rotary operating member 47 of the timer 46 counterclockwise from the state shown in FIG. They move forward as one, and during the forward movement, they engage with and press the insert 42, but due to this pressing, the insert 42 moves toward the shaft 41.
When the drive piece 48 passes through the insert 42 without engaging the rocking plate 20 and only rotates in the direction away from the rocking plate 20, as shown in FIG. 5a. As shown, the insert 42 rotates back due to the spring force and abuts against the engaging portion 45 of the rocking plate 20. Therefore, the timer 46 can be set without engaging the swing plate 20 in any position.
After setting, press sub button 6 or main button 7.
Of course, it is also possible to push the

While the bath is being heated, the rotation operating member 47 of the timer 46 gradually rotates clockwise at a constant speed.
Along with this, as shown in FIG. 5a, the drive piece 48
gradually approaches the insert 42 from the rear clockwise,
When the set time has elapsed, the drive piece 48 presses the insert 42 and the shaft 41
This insert 42 is rotated counterclockwise around the
presses the engagement portion 45 of the swing plate 20 to swing the swing plate 20 clockwise, thereby causing the first engagement member 21 integrated with the swing plate 20 to swing in the same direction. The hook portion 32 of the sub-button 6 is released from the protrusion 22, and the second engagement member 24 is pushed by the swing plate 20 to swing in the same direction and engage the protrusion 25. The hook portion 36 of the main button 7 is released, and the sub-button 6 and main button 7 are returned to their original positions by the spring force of the compression coil springs 9 and 10, respectively.
When the on-off valves of the pilot burner and the main burner are closed to extinguish the fire and the drive piece 48 has passed through the insert 42, as shown in FIG.
0 and the second engaging member 24 are torsion coil springs 30
The insert body 42 is also pushed by the rocking plate 20 and moves back to its original position, and when the drive piece 48 returns to its original position in the figure, the rotation operating member 47 is moved back to its original position. Rotation stops.

Furthermore, in this embodiment, the fire can be extinguished by pressing the fire extinguishing button 8 without operating the timer. In this case, the fire extinguishing button 8 can be moved from the state shown in FIG. When the third engaging member 28 is pushed in, the slope 38 presses the protrusion 29 of the third engaging member 28, as shown in FIG.
8 and the rocking plate 20 integrated therewith clockwise, the sub button 6 and main button 7 are returned to their original positions, and when the pressing force on the extinguishing button 8 is released, the extinguishing button 8 is compressed. coil spring 1
The swing plate 20 moves back to the original position with a spring force of 1, and the swing plate 20 moves back to the original position.

Structure and effects of the invention As specifically explained in the above embodiments,
The automatic return device for a push button for igniting a gas bath according to the present invention moves a push button for igniting a burner that is pushed in against the spring elasticity to a swivel in which a hook portion provided on the push button is biased in one direction by the spring elasticity. The moving plate is locked in the locking part and held in the pushed state, and when the operation part is operated in one direction, the drive piece is moved in one direction while storing the driving force in the other direction in the energy storage device such as a mainspring spring. A timer is configured to cause the driving piece to move back in the other direction at a constant speed by the accumulating force of the energy accumulating device, and the oscillating plate is retracted in a direction that resists the spring elasticity. In the automatic return device for a push button for gas bath point fire extinguishing, the push button is returned to its original position by releasing the locking part from the locking part of the rocking plate and the timer. The drive piece is arranged so as to be separated from the drive piece, and the swing plate is interposed between the swing plate and the drive piece only when the drive piece returns. The gist is that an insert body is pressed in a direction that resists the spring elasticity, and hangs down from the drive piece to swing in a direction away from the swing plate when the drive piece moves forward, and to set a timer. When the drive piece moves forward, the rocking plate is not retracted in a direction that resists the spring elasticity, so there is no risk that the push button held in the pressed state will return unexpectedly, and the timer can be set. This can be done at any time, either before or after pressing the push button, making the operation extremely convenient.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an embodiment of the present invention, FIGS. 2 to 4 are illustrations of the operation of the sub button, main button, and extinguishing button, respectively, FIG. 5 is an illustration of the operation of the timer, and FIG. The figure is a plan view of a conventional device. 6: Sub button, 7: Main button, 9,1
0: Compression coil spring, 20: Rocking plate, 21: First
Engagement member, 22: protrusion, 24: second engagement member, 2
5: Projection, 30, 30a: Torsion coil spring, 3
2: hook portion, 36: hook portion, 42: insert, 46: timer, 47: rotation operation member, 48: drive piece.

Claims (1)

[Claims] 1. A burner ignition push button that is pushed in against the spring force is held in the pushed state by locking the hook provided on the push button to the locking part of the rocking plate that is biased in one direction by the spring force. By operating the operation part in one direction, the driving piece is moved in one direction while accumulating driving force in the other direction in an energy accumulating device such as a mainspring spring, and by using the accumulating force of the accumulating device. A timer configured to move the drive piece back in the other direction at a constant speed causes the rocking plate to retreat in a direction that resists spring elasticity, thereby releasing the locking of the hook portion from the locking portion. In the automatic return device for a push button for gas bath ignition, the push button is moved back to its original position by: The oscillating plate is interposed between the oscillating plate and the driving piece only when the driving piece moves back, and presses the oscillating plate in a direction that resists the spring elasticity. 1. An automatic return device for a push button for igniting a gas bath, characterized in that an insert member is suspended that swings in a direction away from the swing plate when the push button is activated.