JP3526116B2 - Gas stove combustion amount adjustment device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to heat control of a gas stove.

[0002]

2. Description of the Related Art A gas stove is provided with a point / fire extinguishing mechanism for igniting and extinguishing a burner, and a heating power increasing / decreasing mechanism for increasing / decreasing the heating power of the burner. From the viewpoint of operability, the point / fire extinguishing operation is often performed by pushing the ignition knob in the front-back direction such as the point / fire extinguishing button, but there are also gas appliances operated by rotating the knob. For increasing / decreasing the heat power, a slide-type operation lever is provided to continuously adjust the heat power from weak to medium to strong or vice versa, and the operation knob for heat power adjustment attached to the front end of the operation lever can be adjusted to the left or right direction. It is made by sliding to.

[0003]

In recent years, the heating power of the burner of the gas stove has tended to become large for cooking Chinese food and the like. Along with this, there is a possibility that a large flame of heat generated by inadvertently operating the operating lever heats the handle of the pot. An object of the present invention is to provide a combustion amount adjusting device for a gas stove that can adjust the flame of a burner to a large thermal power as needed.

[0004]

DISCLOSURE OF THE INVENTION The present invention relates to a point / fire extinguishing mechanism for igniting and extinguishing a burner, and a thermal power adjustment for adjusting the thermal power of the burner in a thermal power range from high to low. And a manipulating unit for manipulating the heating power adjusting unit, the manipulating unit is connected to the heating power adjusting unit, and in a gas stove combustion amount adjusting device that is manually operated, the heating power range is large. It is divided into a zone and a normal thermal power zone, and the operating section is a manual operating means that is manually displaced, and this manual operating means displaces a moving range corresponding to the thermal power range, and the large thermal power zone from the normal thermal power zone. The transitional displacement that transitions to the thermal power zone is blocked, and the blockage is released by operating in a direction intersecting the direction of this transitional displacement, and the transitional displacement becomes possible. Adopting combustion amount adjusting apparatus Sukonro a first technical means.

[0005]

According to the present invention, there is provided a point / fire extinguishing mechanism for igniting and extinguishing a burner, and a heat power adjusting portion having a valve body for adjusting the heat power of the burner in a heat power range from high heat power to low heat power. In a gas stove combustion amount adjusting device including an operating section for displacing the valve element, the thermal power range is divided into a large thermal power zone and a normal thermal power zone, and the operating section is axially supported on a stove body side to support the same. A base member that rotates about the position to displace the valve body, and a displacement that has a knob and is rotatably held with respect to the base member, and further rotates the knob to rotate the base member. And a stop portion that engages with the displacement member,
When the operating portion is rotated from the low heat side to the high heat side and the displacement member engages with the stop portion, the heat power adjusting operation outside the normal heat zone is disabled, and the displacement member is moved to the base. A second technical means for a combustion amount adjusting device for a gas stove, characterized in that the operating part can be moved from the normal thermal power zone to the large thermal power zone by being displaced from the member by being displaced with respect to the member. To be adopted as.

According to the present invention, there is provided a point / fire extinguishing mechanism for igniting and extinguishing a burner, and a heat power adjusting section having a valve body for adjusting the heat power of the burner in a heat power range from high heat power to low heat power. In a gas stove combustion amount adjusting device having an operating section for displacing the valve element, the thermal power range is divided into a large thermal power zone and a normal thermal power zone, and the operating section is axially supported on a stove body side to support the same. A stop member that rotates around a position to displace the valve body and that can freely move in and out of the movement range of the operation section is provided, and the operation section rotates from the low heat power side to the high heat power side to stop the operation. When engaged with a member, the thermal power adjustment operation outside the normal thermal power zone becomes impossible, and the operating portion moves from the normal thermal power zone to the large thermal power zone by retracting the stop member from the movement range of the operating portion. Thing Adopting stove combustion amount adjusting apparatus characterized by that can as a third technical means.

The present invention is the apparatus for adjusting the combustion amount of a gas stove according to any one of the first, second and third technical means, wherein when the heat power adjusting portion and the operating portion are in a large heat power zone, A first aspect of the present invention is a combustion amount adjusting device for a gas stove, which is characterized in that when the burner is ignited or extinguished, the heat power adjusting unit and the operating unit are displaced to the normal heat power zone.
Is adopted as an embodiment of.

The present invention is the apparatus for adjusting the combustion amount of a gas stove according to the first embodiment, wherein a connecting member for connecting the point / fire extinguishing mechanism and the thermal power adjusting unit is provided, and the burner is ignited via the connecting member. As a second embodiment, a combustion amount adjusting device for a gas stove, which is characterized in that the heat power adjusting section is displaced to the normal heat power zone during or when extinguishing a fire.

According to the present invention, in the gas stove combustion amount adjusting device according to the first or second embodiment, when the heat power adjusting portion is at the weakest heat power position, the heat power adjusting portion is activated when the burner is ignited or extinguished. The gas stove is characterized in that it is displaced to a good ignition position which is on the strong heat side from the weakest heat position, and the good ignition position is on the weaker heat side than the displacement position from the large heat zone to the normal heat zone. The combustion amount adjusting device of No. 3 is adopted as the third embodiment.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Next, a gas stove combustion amount adjusting apparatus of the present invention will be described with reference to a first embodiment shown in the drawings. 1 to 3 show the point / fire extinguishing mechanism 10 of the stove burner B.
The combustion adjustment unit U including 0, the heat power increase / decrease mechanism 200, and the heat power return mechanism 300 at the time of ignition or extinction is shown.
The combustion adjusting unit U is mounted inside the gas stove T shown in FIG. On the front surface of the gas stove T, there is a point / fire extinguishing button 10 for operating the point / fire extinguishing mechanism 100.
It is urged by a spring (not shown) or its own weight so as to come into contact with an actuator 32 (described later), and is attached so as to be swingable in the front-rear direction by an upper shaft.

1 to 3, the point / fire extinguishing button 10 and the operating element 32 are shown separately from each other for the sake of understanding of the drawings. Above the point / fire extinguishing button 10, a slide type operation knob 20 for operating the heat power increasing / decreasing mechanism 200 is provided.
However, it is provided to be slidable in the left-right direction. The sliding range of the slide type operation knob 20, that is, the sliding range of the operating lever 4 is a range in which the claw 44 of the lever substrate 43 described later moves between the slits 41a of the bracket 41, and when the claw 44 hits the right end of the slit 41a. It is the weakest fire power position (B in FIG. 8), the valve body 22 described later is in the state in which the gas amount is most reduced, and the claw 44 hits the left end is the strongest fire power position (A in FIG. 8). Fire power control valve 22 which is the body
Is the state in which the most gas flows (see FIG. 6).

The thermal power range between the strongest thermal power position and the weakest thermal power position is divided into a large thermal power zone and a normal thermal power zone (position C in FIG. 8). The large thermal power zone is a range in which a thermal power larger than the maximum thermal power in the normal thermal power zone can be obtained. This will be described with reference to FIGS. 1 and 6. The front wall of the bracket 41 has an opening 91 into which the rear end side locking portion 81 of the lever body 8 is inserted. A step 92, which is a stop, is formed on the upper edge of the opening 91. This step 92 limits the horizontal movement range of the rear end side locking portion 81, and the position of the operation lever 4 when the rear end side locking portion 81 hits this step 92, that is, the position of the thermal power control valve 22. Is the boundary between the normal thermal power zone and the large thermal power zone.

In order to move the operating lever 4 from the normal thermal power zone to the large thermal power zone, the operating lever 4 is composed of a lever base plate 43 and a lever body 8 (which will be described in detail later), and the tip of the lever body 8 is lifted. Rear end side locking part 81
By removing from the step 92, the operating lever 4 can be moved to and from the large thermal power zone (thermal power adjustment).

The opening 91 is provided with another step 93. This is because when the operation lever 4 is suddenly moved in the throttle direction, the thermal power control valve 22 may suddenly throttle the gas amount to cause misfire. Therefore, even if the operation lever 4 is suddenly operated, the rear end side locking portion 81 hits the step 93 (position D in FIG. 8) so as not to move abruptly to the weakest thermal power position. Also in this case, when it is desired to further move the operation lever 4 in the direction of the squeeze, the tip of the lever body 8 is lifted as described above so that the rear end side locking portion 81 is disengaged from the step 93 to the weakest heat position. You can move.

As shown in FIG. 7, the point / fire extinguishing mechanism 100 is provided with a safety valve 1A and a main valve 1B inside and a cylindrical valve body 1 horizontally mounted in the front-rear direction. On the upper surface of the front part (left part in the figure) of the valve body 1, the heat power adjusting valve body 2 of the heat power adjusting mechanism 200 is vertically fastened. The heat regulation valve body 2 has a tubular shape,
A thermal power adjustment valve 22 is provided at the upper end of the inner cavity that serves as the fuel gas passage. On the front end face of the valve body 1,
The switch mechanism 3 operated by the point / fire button 10 is fastened.

An operating lever 4 for operating the heat adjusting valve 22 and adjusting the heat of the stove burner B is attached to the upper end of the heat adjusting valve body 2 so as to be rotatable in the left-right direction. In this embodiment, the operation lever 4 is rotatably supported by a support shaft 42 on an upper wall surface of a bottomless box-shaped bracket 41 fastened to the upper end surface of the thermal power control valve body 2. The slide type operation knob 20 is fixed to the front end portion of the operation lever 4.

The switch mechanism 3 is fastened to the front end surface of the valve body 1 with a screw, and has a guide frame 31 forming a guide surface having a cross-shaped cross section, and an actuator fitted in the guide frame 31 so as to be movable back and forth. And 32. Actuator 32
Has a substantially cruciform front shape, and has a rod-shaped base 33,
It has a wing-shaped lever action portion 34 projecting upward from the rod-shaped base 33, and a micro switch actuating portion 35 projecting leftward and rightward from the rod-shaped base 33. The tip of the lever acting portion 34 is a horizontal plate-shaped contact portion 36.

The actuator 32 is urged forward (leftward in the drawing) by a spring 37 interposed between the actuator 32 and the guide frame 31. A micro switch (not shown) is attached to the left side surface of the guide frame 31, and opens and closes in accordance with the displacement of the micro switch operating portion 35. The actuator 32 is shown in FIG.
When pushed in from the protruding position (fire extinguishing position) shown in Fig. 3,
The push-in position (ignition position) shown in is reached. When the push-in is released in this state, it is locked at the intermediate position (combustion position) shown in Fig. 2 by the push-push mechanism by a heart cam (not shown) or a deformed heart cam (the second pressing stroke is smaller than the first pressing stroke). When the pressure is released after being pushed in again from the intermediate position, it returns to the original protruding position (fire extinguishing position).

An electromagnet 1C of a safety valve is fitted in the rear portion (right portion in the drawing) of the shaft hole of the valve body 1, and a fuel gas passage is formed inside. The valve body 1 is provided with an inflow port that opens downward, and further in the front part (left part in the drawing), an outflow port that opens upward and communicates with the fuel gas passage of the thermal power control valve body 2 is formed. An actuating rod 1d, the tip of which abuts against the tip (right end in the figure) of the rod-shaped base portion 33 of the actuator 32, is inserted into the fuel gas passage so as to be movable back and forth. Actuating rod 1
d is biased in the forward direction (leftward in FIG. 7) by the spring, and is displaced in the front-rear direction in conjunction with the actuator 32.

The portion of the fuel gas passage where the outlet is provided is formed to have a small diameter to form a valve opening, and together with the collar-shaped main valve body 1b which is fitted on the operating rod 1d and on which the spring is installed back. It forms the main valve 1B. A throttle wall is formed between the main valve 1B and the inflow port to serve as the valve port of the safety valve 1A. The collar-shaped safety valve body 1a of the safety valve 1A is installed at the rear portion of the actuating rod 1d with a closing action given by a safety valve spring.

At the upper end of the fuel gas passage of the heat adjustment valve body 2, a heat adjustment valve 22 is fitted so as to be rotatable and axially slidable (see FIGS. 6 and 7). Thermal power control valve 22
Is connected to the gas outlet for supplying the fuel gas to the stove burner B. The thermal power control valve 22 has an upper end exposed at an upper portion of the thermal power control valve body 2, and the thermal power control valve 22 is rotated in the exposed portion by sliding in cooperation with an inclined slit described later. Right needle pin 23 and left needle pin 24 for increasing and decreasing the opening degree
Is attached so as to face back in the direction orthogonal to the axial direction of the thermal power control valve 22.

The right side needle pin 23 and the left side needle pin 24 may be separately attached to the exposed portion of the thermal power regulating valve 22, and one rod is provided in the hole formed in the exposed portion of the thermal power regulating valve 22. It may be formed by fitting in a skewered shape. In this embodiment, the right needle pin 23 and the left needle pin 24 extend rightward or leftward from the upper end of the exposed portion of the thermal power control valve 22, and the right needle pin 23 is the right wall of the box-shaped bracket 41. And is projected to the outside through a slanted slit 40a that is provided on the disk and functions as a cam groove. The left needle pin 24 has the inclined slit 40a.
It is exposed to the outside through an inclined slit 40b inclined to the opposite side.

The inclined slits 40a and 40b convert the amount of rotation of the right needle pin 23 and the left needle pin 24 into the amount of axial movement of the heat adjustment valve 22 to increase or decrease the valve opening of the heat adjustment valve 22. The valve opening degree increases and the amount of flowing gas increases as the thermal power adjustment valve 22 rises from the lower side to the upper side.
When the claw 44 of the lever base plate 43 hits the left end of the slit 41a, it is in the strongest fire power position as described above, but at this time, the right needle pin 23 is inclined by the fork-shaped portion 46a of the lever base plate 43 as shown in FIG. To raise the firepower control valve 22. At this time, the left needle pin 24 similarly raises the inclined slit 40b by the fork-shaped portion 46b of the lever substrate 43.

Further, when the claw 44 of the lever base plate 43 hits the right end of the slit 41a, the position is at the weakest thermal power position as described above. At this time, the right needle pin 23 is moved to the position shown in FIG. As shown in (4), the tilt slit 40a is lowered to lower the thermal power control valve 22. At this time, the left needle pin 24 similarly lowers the inclined slit 40b by the fork-shaped portion 46b of the lever substrate 43.

The thermal power return mechanism 300 has a support shaft 61 on the right side wall of the thermal power control valve body 2, and the right return lever 6 is a sheet metal connecting member rotatably mounted on the support shaft 61.
And a left shaft 7 on the left side wall of the heat control valve body 2 and a left return lever 7 which is a sheet metal connecting member rotatably mounted on the shaft 71.

The right side return lever 6 is formed with a force point surface 62 urged by the operation of the switch mechanism 3 of the point / fire extinguishing mechanism 100 at the lower end, and the right needle pin 23 is ignited from the low heat position to the medium heat direction at the upper end. An action surface 63 for pushing up to a position (e in FIG. 8) is provided. The left side return lever 7 is formed with a force point surface 72 which is urged by the operation of the switch mechanism 3 of the point / fire extinguishing mechanism 100 at the lower end, and has the left needle pin 24 at the upper end from the high heat position (a in FIG. 8) to the normal heat power. A working surface 73 is provided for pushing down to the maximum thermal power position (f in FIG. 8) in the zone, for example, the normal thermal power zone.

In this embodiment, the force application surfaces 62 and 72 are
Is formed as a horizontally long strip-shaped surface obtained by bending the lower end front portion of the return lever 6 or 7 at a right angle. The working surface 63 is an inclined edge formed on the upper end of the right side return lever 6, and
Reference numeral 3 is a substantially L-shaped edge formed on the upper end of the left side return lever 7. When the right side return lever 6 rotates counterclockwise, the working surface 63 comes into contact with the right side needle pin 23, and by moving the needle pin 23 in the direction of the operation knob 20, the inclined slit 4 is moved.
Raise along 0a. When the left return lever 7 rotates counterclockwise, the working surface 73 contacts the left needle pin 24 and moves the needle pin 24 in the direction of the operation knob 20 to lower the needle pin 24 along the inclined slit 40b.

The heating power returning mechanism 300 is provided for the following reason. When it is desired to increase the heat power for cooking such as tempura, the lever body 8 is used to move the heat power adjusting valve 22 from the normal heat power zone to the large heat power zone for cooking. By the operation of the switch mechanism 3 of the point / fire extinguishing mechanism 100 at the time of the next ignition operation, the thermal power control valve 22 is returned to the normal thermal power zone (to the above-mentioned FIG. 8) via the left return lever 7. As a result, the next time it is used, it will be used in the normal thermal power zone. Further, when it is desired to weaken the heat power in the toro fire cooking, the lever main body 8 is used to move the heat power adjusting valve 22 to the weakest heat power position in the normal heat power zone for cooking. By the operation of the switch mechanism 3 at the time of the next ignition operation, the thermal power adjustment valve 22 is operated via the right side return lever 6.
To the "good ignition position" (e in FIG. 8). This makes it easier to ignite during the next use.

The operating lever 4 includes a lever base plate 43 which is rotatably supported by a support shaft 42 on an upper wall surface of the bracket 41, and a lever main body 8 which is connected to a front extension 45 of the lever base plate 43.
And (see FIG. 5). Fork-shaped portions 46a and 46b, which are extended to the right side (right side of the support shaft 42) and left side (left side of the support shaft 42) of the lever base plate 43, are bent downward at a substantially right angle, and have cut grooves formed therein. And engages with the tips of the right needle pin 23 and the left needle pin 24. Inverted L-shaped claws 47, 47 project downward from the front end of the front extension 45.

The lever main body 8 is formed by pressing a sheet metal, and has a narrow rear end locking portion 81 and a wide middle portion 8.
2. It consists of a narrow front end 83. Notches 82a are provided on both sides of the intermediate portion 82, and the notches 82a are provided.
The inverted L-shaped claw 47 is inserted in to form a node.

The spring joint 80 includes a support wall portion 84a extending upward from the left end of the front extension portion 45 of the lever base plate 43 and an arm portion 84b extending laterally from the front end of the support wall portion 84a. The spring holding means 84 is provided. A rectangular window 85 is formed in the front extension portion 45 of the lever base plate 43, and a joint spring 86 of the spring joint 80 is internally formed in the intermediate portion 82 of the lever body 8.
A cut-and-raised claw 87 cut and raised at a substantially right angle is formed to support one end of the. The cut-and-raised claw 87 is inserted through the rectangular window 85 and protrudes upward. The other end of the joint spring 86 is locked at a corner between the support wall portion 84a and the base portion.

The spring joint 80 lifts the slide type operation knob 20 (see FIG. 1), and the lever body 8
The rear end side locking portion 81 is disengaged from the engagement of the step 92 and can be slid from the normal thermal power zone to the large thermal power zone only when the lever is tilted about 10 degrees and the release operation is performed. In the normal thermal power zone, the rear end side locking portion 81 is disengaged from the step 93 and can slide to the weakest thermal power position.

When the operating lever 4 is set to the right end side weak heat power position shown in FIG. 2, the heat power adjusting valve 22 is set to the lower end position and has a small opening. The operating lever 4
As shown in FIG. 1, when it is set to the left side strong thermal power position, the thermal power control valve 22 is set to the upper end position and has a large opening.

Next, the operation of the combustion amount adjusting device for the gas stove will be described. Before operating the switch mechanism 3, the safety valve 1A and the main valve 1B are closed. When the point / fire extinguishing button 10 is pushed, the actuator 32 is pushed in. At this time, the rod-shaped base 33 pushes in the actuating rod 1d, and the main valve 1
B and the safety valve 1A are opened, and the micro switch operation part 3
Reference numeral 5 is a sparker attached to the stove burner B by turning on a micro switch to generate spark discharge.

At the time of ignition, if the operating lever 4 is set in the large thermal power zone as shown in FIG. 1 or in the weak thermal power range in the normal thermal power zone as shown in FIG. 2, it is interlocked with this ignition operation. Then, as shown in FIG. 3, the contact point 36 of the lever acting portion 34 is projected forward and the power point surface 62 of the right side return lever 6 (in the case of weak heat power) or the power point surface 72 of the left side return lever 7 (strong heat power). In the case of (1), the right side return lever 6 or the left side return lever 7 is rotated.

The right needle pin 23 is the right return lever 6
Is rotated to move from the lower end side (rear end side) to the upper front side.
On the working surface 63, the rear end side locking portion 81 of the lever body 8 has a step 93.
The right side needle pin 23 is formed to have an inclination angle that pushes up the right needle pin 23 along the inclined slit 40a until it reaches the ignition lower limit position (e in FIG. 8) that is on the stronger thermal power position side. Rotate from the low heat position to the ignition lower limit position while increasing the opening.

The left needle pin 24 is the left return lever 7
Is rotated to move from the upper end side (rear end side) to the lower front side.
On the action surface 73, the rear end side locking portion 81 of the lever main body 8 has a step 9
Since the left needle pin 24 is formed to have an inclination angle that pushes down the left needle pin 24 along the inclined slit 40b until it is located in the normal thermal power zone which is on the weaker thermal power position side than 2 (in FIG. 8), the thermal power control valve 22 has an upper end. It moves down to the normal thermal power zone while reducing the opening from the large thermal power zone on the side.

When the abutting portion 36 pushes one of the force application surface 62 of the right side return lever 6 or the force application surface 72 of the left side return lever 7, the other return lever has a needle pin cooperating therewith to form an operation surface. Will be pushed. Further, the fork-shaped portions 46a and 46b are driven by the rotation of the right needle pin 23 and the left needle pin 24, and the operation lever 4 is also displaced.

In this way, even if the burner's heat power is weak, at the time of ignition, the heat power of the stove burner B is automatically set to good ignition heat power in the normal heat power zone suitable for ignition, and ignition is smoothly performed. It Even if the burner has a large heating power zone, the heating power of the stove burner B is automatically set to the normal heating power zone at the time of ignition. Therefore, the operating lever 4 is released to perform the displacement operation to the large heating power zone. It will not become a big fire unless it is done. Ignited stove burner B
The electromagnet of the safety valve 1A is magnetized by the electromotive force of the thermocouple (not shown) attached to the stove burner B due to the flame, and the safety valve 1A is maintained in the open state.

On the other hand, the main valve 1B has a point / fire button 10
At the intermediate position (combustion position) in which the pushing operation of is stopped and the actuator 32 is opened and returned to the front, the actuating rod 1d moves to the main valve 1B
Of the right side return lever 6 and the left side return lever 7, the action surfaces 62 and 72 are in a free state, and the operation lever 4 does not obstruct the movement of the needle pin. When the point / fire extinguishing button 10 is pressed during combustion, the push / push mechanism is released, and the actuator 32 returns to the position before ignition shown in FIG. As a result, the main valve 1B is closed and the stove burner B is extinguished, so the safety valve 1A is also closed.

Although the heating power returning mechanism 300 is made to operate at the time of ignition (in the case of a deformed heart cam), it may of course be set at the time of extinguishing (in the case of a normal heart cam). Of course, the step 93 is unnecessary if there is no inconvenience of misfiring even by a rapid throttle operation from high heat to low heat. Furthermore, if ignition is performed well even with a low heat setting, there is no need to return the needle pin 23 to the good ignition position via the right side return lever 6 at the time of ignition or extinction,
In this case, the right side return lever 6, the needle pin 23 and the fork-shaped portion 46a are unnecessary.

[Second Embodiment] Next, a gas stove combustion amount adjusting apparatus of the present invention will be described based on a second embodiment shown in FIG. The gas stove combustion amount adjusting device of the present embodiment is different from the first embodiment in the following points. Thermal power control valve 2
2, the left needle pin 24 is not provided and only the right needle pin 23 on the right side is provided. Instead of the right side return lever 6 and the left side return lever 7, a return mechanism 5 is provided which sets the right needle pin 23 in the medium heat range during ignition.

The return mechanism 5 includes a support plate 50 fixed to the right side wall of the heat regulation valve body 2 and an action mechanism 51 attached to the upper part of the support plate 50 and acting on the right needle pin 23.
And a slide plate 25 that is attached to the lower part of the support plate 50 and slides back and forth. Then, the pull cord 2 for transmitting the pulling force between the action mechanism 51 and the slide plate 25.
6 includes a mechanism 50 and a slide plate 2 via a support plate 50.
It is connected to 5.

The operating mechanism 51 includes a push-up lever 52 for pushing up the right needle pin 23 and the right needle pin 2
A push-down lever 53 that pushes down 3 and a stop pin 54 that connects the push-up lever 52 and the push-down lever 53 so as to rotate concentrically. A restoring spring 55 that generates a restoring force when the push-up lever 52 and the push-down lever 53 relatively rotate connects the push-up lever 52 and the push-down lever 53.

The push-up lever 52 has a ring-shaped first connecting portion 56 into which the stop pin 54 is inserted to connect with the push-down lever 53, and a rod-shaped first connecting portion 56 which is connected to the first connecting portion 56 and pushes up the right needle pin 23. And an action portion 57. The push-down lever 53 overlaps the first connecting portion 56 and is coupled to the second connecting portion 58 and the second connecting portion 58, which is an annular shape, into which the stopper pin 54 is inserted together with the first connecting portion 56, and pushes down the right needle pin 23. Rod-shaped second action part 5
9 and 9. The head of the stop pin 54 is provided with a circumferential recess that connects the upper end of the pull cord 26.

The support plate 50 has a pair of guide groove members 27a and 27b on the upper side thereof for guiding the action mechanism 51 therebetween. The guide groove members 27a and 27b form a passage that gradually narrows from the upper rear side to the lower front side. Further, the support plate 50 is connected to the right side wall of the thermal power regulating valve body 2 by a fixing bolt 28 at approximately the center. In front of the fixing bolt 28, a disc-shaped guide plate 29 that relays the pulling string 26 and turns the pulling direction is attached. Further, a support bolt 11 for supporting the slide plate 25 is attached to the lower rear side of the support plate 50, and the slide plate 2 is provided in front of the support bolt 11 together with the support bolt 11.
A disk-shaped support protrusion 12 is provided for keeping 5 horizontal.

The slide plate 25 is connected to the force point surface 13 which is biased from the front surface by the operation of the switch mechanism 3 of the point / fire extinguishing mechanism 100, and a slide which is connected at right angles to the force point surface 13 and which is elongated in the front-rear direction and overlaps the support plate 50. And a surface 14. On the rear side of the sliding surface 14, a disc-shaped mounting plate 16 that ties the lower end of the pull string 26 along the circumferential groove.
Is attached. The slide surface 14 is provided with a slide hole 15 for sliding in the longitudinal direction. Then, the support projections 12 are fitted into the slide holes 15, the support bolts 11 are inserted, and the support bolts 11 are tightened so as to have an appropriate pressing force.
Are slidably attached to the support plate 50.

With the above structure, the return mechanism 5 operates as follows. When the point / fire extinguishing button 10 is pressed to ignite, the contact portion 17 of the lever acting portion (not shown) pushes the force application surface 13 rearward, and the slide plate 25 slides rearward. As a result, a pulling force is generated in the pulling string 26, and the action mechanism 51 is pulled forward and downward between the guide groove members 27a and 27b. Along with this, the push-up lever 52 and the push-down lever 53 relatively rotate to move the first acting portion 57 and the second acting portion 57 to each other.
The angle formed with the action portion 59 becomes smaller. Therefore, when the operating lever 4 is in the low heat power range, the first acting portion 57 pushes the right needle pin 23 up to the lower limit of the middle heat power range.
When the operating lever 4 is in the range of high heat power, the second action part 5
9 pushes down the right needle pin 23 to the upper limit of the medium heat range.

When the force applied to the force application surface 13 is released, the restoring force of the restoring spring 55 of the acting mechanism 51 causes the acting mechanism 51 to move upward and backward, and the push-up lever 52 and the push-down lever 53 relatively rotate. The angle formed by the first acting portion 57 and the second acting portion 59 is increased. This allows the right needle pin 23 to freely rotate. Similar to the first embodiment, the combustion adjusting device for a gas appliance of the present embodiment is easy to use because the boundary of the medium heat range in which the position of the operating lever 4 does not move during ignition requires the lifting operation of the lever body 8. Is good.

[Modification] In the second embodiment, the returning mechanism may be configured such that the right needle pin 23, which is in the low-power range or the high-power range during ignition, comes to an intermediate position in the middle-power range. Good. In the first and second embodiments, the example in which the stop portion (step 92, step 93) is disengaged from the rear end side locking portion 81 of the lever body 8 has been described, but the stop portion is the displacement of the lever body 8. Any place can be engaged or disengaged. In the first and second embodiments, the function of releasing the operation portion from being blocked by the step 92 or the step 93 from sliding may be achieved by the following configurations 1) to 3) (FIG. 10). Through FIG. 12).

1) The front extension portion 101 of the lever substrate has an elongated opening 102 formed in the extension direction as shown in FIG. The lever body 103 has a substantially rectangular plate shape, and has a rear end side locking portion 10 that abuts the step 92 or the step 93 at the rear end.
4 are formed. Then, the lever body 103 is superposed below the front extension portion 101 in the same direction as the front extension portion 101, and the two pin members 105 are attached to each other.
The third intermediate portion 106 is arranged side by side in the longitudinal direction so as to be inserted into the opening 102 of the front extension portion 101. As a result, the lever body 103 is attached to the front extension 101 so as to be movable in the front-rear direction. Further, the upper side of the front portion 107 of the lever main body 103 and the front end portion 108 of the front side extension portion 101 are connected by a spring 109, and when the lever main body 103 is pulled forward (in the arrow direction) against the spring 109. A restoring force that pulls back to the back is generated.

According to the above construction, the lever body 103 slides toward the high heat side or the low heat side and the step 92 or the step 93 is formed.
When the rear end side locking portion 104 comes into contact with the lever main body 10
By pulling 3 forward (front), the rear end side locking portion 104
Is disengaged from the step 92 or the step 93, and the lever body 103 can be further slid toward the high heat side or the low heat side.

2) Contrary to 1) above, the front extension 101 is
The rear end and the rear portion of the lever body 133 are connected by a spring (not shown). Further, in the lever body 133, a side 110 on the front side of the rear end is provided with a high heat side cutout 111a engaged with the step 92 and a low heat side cutout 111 engaged with the step 93.
b is provided (see FIG. 11). As a result, when the lever body 133 slides toward the high heat side or the low heat side and the side 110 abuts against the step 92 or the step 93, the notch 1 is pushed by pushing the lever body 133 backward against the spring.
11a or 111b corresponds to the step 92 or the step 93, and the lever body 133 can be further slid to the high heat side or the low heat side. This notch 111a, 1
Of course, 11b may be on the front side or the front side.

3) The lever main body 113 is integrally molded in front of the front extension 112 of the lever board, and the locking portion 114 is projected rearward of the front extension 112 along the direction of the lever main body 113. Further, on the high heat side and the low heat side of the locking portion 114, a high heat side contact plate 115 and a low heat side contact plate, which are stop members contacting the locking portion 114, are shown in phantom lines. Is placed on the gas stove body. The high heat side contact plate 115 is provided with a high heat side notch 116, which is a locking portion corresponding to the step 92, at the upper end, and a step 117 for receiving a downward acting force is provided at the center. The low heat side contact plate also has the same shape as the high heat side contact plate 115, and the step portions 117 face each other. The high heat side contact plate 115 and the low heat side contact plate 115 slide up and down to move in and out of the range of motion of the locking portion 114, and a spring 118 is attached to generate upward restoring force when sliding downward. ing.

Further, below the lever body 113, a releasing member 119 for releasing the locking portion 114 from the high heat side contact plate 115 is arranged in the gas stove body. Release member 11
9 is made of an elongated sheet metal and is horizontally arranged in the front-rear direction. Further, the release member 119 is attached so as to be slidable in the front-rear direction, and has a push button 121 at the front end.
Is attached to the operating portion of the gas stove. Further, the release member 119 is provided with a spring 122 that produces a restoring force to the front when pushed backward and slid. A release member is also provided on the low heat side contact plate.

According to the above configuration, when the locking portion 114 abuts on the high heat side notch 116, the rear end portion 120 of the release member 119 is pushed by pushing the push button 121.
17, the high heat side contact plate 115 is pushed down to release the high heat side notch 116 from the locking portion 114. As a result, the lever body 113 can be slid further to the high heat side. A release member is also used when the locking portion 114 comes into contact with the low heat side contact plate. The locking portion 114 does not necessarily have to project to the rear end side, and may be, for example, the side of the lever body 113. Incidentally, in these three examples as well, the example in which the operation to the weak heat side can be restricted has been described, but it is unnecessary if there is no misfire even with a rapid throttle operation. Also,
Of course, even in these three examples, it is possible to return from the large thermal power zone to the normal thermal power zone at the time of ignition or extinction by using the thermal power return mechanism 300. Further, in all the embodiments, an ignition button and a fire extinguishing button may be separately provided instead of the point fire extinguishing button, and in this case also, by operating the ignition button or the fire extinguishing button, the large heat power zone is returned to the normal heat power zone.

[0058]

EFFECTS OF THE INVENTION Even if the operating portion is inadvertently operated from the normal thermal power zone to the large thermal power zone, the operating portion cannot be operated, and the flame of the large thermal power can be prevented from suddenly jumping around the pot or the like.

[Brief description of drawings]

FIG. 1 is a perspective view of a combustion amount adjustment device for a gas stove.

FIG. 2 is a perspective view of a combustion amount adjustment device for a gas stove.

FIG. 3 is a perspective view of a combustion amount adjusting device for a gas stove.

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

FIG. 5 is a perspective view of an operation lever.

FIG. 6 is an exploded perspective view showing a mounting state of an operation lever.

FIG. 7 is a cross-sectional view of a combustion amount adjustment device for a gas stove.

FIG. 8 is a plan view showing an operating state of an operation lever.

FIG. 9 is a perspective view showing a returning mechanism according to a second embodiment.

FIG. 10 is a diagram according to a modification of the mechanism of the operation lever.

FIG. 11 is a diagram according to a modification of the mechanism of the operation lever.

FIG. 12 is a diagram illustrating a modified example of the mechanism of the operation lever.

[Explanation of symbols]

2 Thermal power control valve body (thermal power control unit) 4 Operation lever (operation part) 6 Right return lever (connecting member) 7 Left return lever (connecting member) 8 Lever body (displacement member) 20 Slide type operation knob (picking) 22 Thermal power control valve (valve body) 42 Spindle (support position) 43 Lever substrate (base member) 81 Rear end side locking part (other end part) 92 steps (stop) 100 points, fire extinguishing mechanism 103 Lever body (displacement member) 104 Rear end side locking part (locking part) 114 Rear end side locking part (locking part) 115 High heat side contact plate (stop member) B Combustor (Burner) T gas stove

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) F24C 3/12 F24C 15/00 F23N 5/26

Claims (6)

(57) [Claims] 1. A point / fire extinguishing mechanism for igniting and extinguishing a burner, a thermal power adjusting unit for adjusting the thermal power of the burner within a thermal power range from a high thermal power to a low thermal power, and the thermal power adjusting unit. With a manipulating section for manipulating, the manipulating section is connected to the thermal power adjusting section, and in a gas stove combustion amount adjusting apparatus which is manually operated, the thermal power range is divided into a large thermal power zone and a normal thermal power zone. The operation section is a manual operation means that is manually displaced,
This manual operation means is a moving range corresponding to the thermal power range.
Displacement of the large thermal power from the normal thermal power zone
Equipped with a stop that prevents transitional displacement that transitions to the zone,
By operating in a direction that intersects with the direction of this transition displacement,
The blocking by the stop is released and the transition displacement is possible.
Stove combustion amount adjusting apparatus characterized by comprising a. 2. A point / fire extinguishing mechanism for igniting and extinguishing the burner, a fire power adjusting unit having a valve body for adjusting the heat power of the burner in a heat power range from high heat power to low heat power, and the valve. In a gas stove combustion amount adjusting device having an operating section for displacing a body, the thermal power range is divided into a large thermal power zone and a normal thermal power zone, and the operating section is axially supported on the stove body side to support this support position. A base member that rotates about the center to displace the valve body; and a displacement member that has a knob and is rotatably held with respect to the base member, and that further rotates the knob to rotate the base member. And a stop portion that engages with the displacement member, wherein the operating portion rotates from the low heat side to the high heat side and the displacement member engages the stop portion outside the normal heat zone. Fire power adjustment operation to It becomes impossible, and by displacing the displacement member with respect to the base member, the operating portion can be moved from the normal thermal power zone to the large thermal power zone, out of the stop portion, and the combustion amount of the gas stove. Adjustment device. 3. A point / fire extinguishing mechanism for igniting and extinguishing the burner, a fire power adjusting unit having a valve body for adjusting the heat power of the burner in a heat power range from high to low heat, and the valve. In a gas stove combustion amount adjusting device having an operating unit for displacing a body, the thermal power range is divided into a large thermal power zone and a normal thermal power zone, and the operating unit is axially supported on the stove body side and its supporting position is The valve body is displaced by rotating it to the center, and a stop member that can move in and out of the movement range of the operation portion is provided. The operation portion rotates from the low heat power side to the high heat power side and the stop member. When engaged, the thermal power adjustment operation to the outside of the normal thermal power zone becomes impossible, and the operating portion moves from the normal thermal power zone to the large thermal power zone by retracting the stop member from the movement range of the operating portion. it can A gas stove combustion amount adjustment device characterized by the above. 4. The stove combustion amount adjusting apparatus according to any one of claims 1 to 3, wherein the thermal adjuster and the operation unit, when in the large thermal zone, the ignition time or extinguishing of the burner A combustion stove quantity adjusting device for a gas stove, characterized in that the heat power adjusting section and the operating section are displaced to the normal heat power zone. 5. The gas stove combustion amount adjusting device according to claim 4 , wherein a connecting member that connects the point / fire extinguishing mechanism and the thermal power adjusting unit is provided, and when the burner is ignited through the connecting member. A combustion stove amount adjusting device for a gas stove, characterized in that the heat power adjusting portion is displaced to the normal heat power zone when extinguishing a fire. 6. The gas stove combustion amount adjusting apparatus according to claim 4 or 5 , wherein when the heat power adjusting portion is at the weakest heat power position, the heat power adjusting portion is provided when the burner is ignited or extinguished. The gas stove is characterized in that it is displaced to a good ignition position which is on the strong heat side from the weakest heat position, and the good ignition position is on the weaker heat side than the displacement position from the large heat zone to the normal heat zone. Combustion amount adjustment device.