JP3368086B2 - Thermal control system for gas-burning appliances - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thermal power control device for a gas combustion appliance such as a gas table or a gas oven.

[0002]

2. Description of the Related Art As a conventional thermal power control device of this type,
For example, as disclosed in Japanese Examined Patent Publication No. 6-97092, a guide groove of a guide plate for guiding the operating lever is provided in a crank shape so that the operating lever is provided with a step ( There is a structure in which misfire is prevented by being locked at (point Y) and temporarily stopped (see in particular FIGS. 9 and 10).

[0003]

In the above conventional technique, the guide groove of the operating lever is provided in a crank shape.
In particular, when the operating lever is returned from low heat to high heat, it is locked on the step, so it is not easy to use, and it is impossible to automatically restore the operation lever from low heat to high heat by interlocking with the ignition operation of the appliance. There were problems such as being there.

The firepower control device for a gas combustion appliance of the present invention solves the above-mentioned problems, is easy to use, prevents misfire due to erroneous operation, and also facilitates automatic restoration of the operating lever. The purpose is to provide an adjusting device.

[0005]

A first aspect of the present invention, which solves the above-mentioned problems, is directed to a heating power adjusting device for a gas combustion appliance, in which the operating lever is slid to adjust the heating power from high to low. In the thermal power control device of the gas combustion appliance provided with a lever locking means for temporarily stopping the movement to the middle of the operation to prevent misfire, a locking piece for engaging and disengaging the operating lever with the locking step portion of the support fitting is provided. It consists of a locking lever with a control knob at the tip and a valve at the base, and a valve actuating lever with a valve actuating piece at the tip. The operating lever is pivotally supported by a spring in a stopping direction, and the operating lever is slidably mounted on the supporting metal fitting, and a locking step is provided in a guide groove of the operating lever provided on the front panel of the instrument. Locking the locking piece to the section Further comprising a limiting protrusion that limits the operation to a low heat direction in the divided state characterized.

A second aspect of the present invention, which solves the above-mentioned problems, has a heating power adjusting device for a gas combustion appliance, in which the operating lever is moved in the direction of the low heat during the adjustment of the heating power from high heat to low heat by sliding the operation lever. In a thermal power control device for a gas combustion appliance provided with a lever locking means for temporarily stopping and preventing misfire, the operation lever is provided with a locking piece for engaging and disengaging with a locking step portion of a support fitting at a base end. Consists of a locking lever with an operating knob and a valve operating lever with a valve operating piece at the tip, and the locking lever is attached to the valve operating lever by a spring in the direction in which the locking piece is locked to the locking step. The operation lever is pivotally supported, the operation lever is slidably installed on the support metal fitting, and the locking lever of the operation lever is connected to the locking step until the locking piece is locked. Move the locking piece to the unlocked state Characterized by comprising a blocking piece to stop.

According to a third aspect of the present invention which solves the above-mentioned problems, in the thermal power adjusting device for a gas combustion appliance, the operating lever is connected to automatic restoring means for automatically restoring from a low heat to a high flame in conjunction with the ignition operation of the appliance. Is characterized by.

[0008]

According to the first aspect of the present invention, there is provided the fire power adjusting device for a gas combustion appliance, wherein the operating lever is composed of the locking lever and the valve operating lever, and the locking lever is provided with respect to the valve operating lever. Since it was urged by a spring in a direction to be locked to the locking step of the support metal and pivotally supported, and this was pivotally supported on the support metal so as to be slidable, Sliding operation of the operating lever with engagement and disengagement is easy and reliable. As a result, it is easy to use and there are few erroneous operations.

Further, when the operating lever is moved from the high heat to the low heat, even if the operation piece is moved in the direction of the low heat in the unlocked state of the locking piece with respect to the locking step, the operation limiting convex portion limits the operation lever. As a result, there is no misfire due to an erroneous operation when adjusting the heat power from high to low heat, which is safe for use.

According to the second aspect of the present invention, there is provided a fire power adjusting device for a gas combustion appliance, comprising:
Since the blocking piece is provided to prevent the locking piece from moving to the unlocked state until the locking piece is locked to the locking step portion, The locking piece cannot be unlocked. As a result, there is no erroneous operation of moving the operating lever in the low heat direction when the locking piece is unlocked.

According to the third aspect of the present invention, there is provided a thermal power regulator for a gas combustion appliance which automatically restores from a low flame to a high flame by operating the operating levers of the first and second thermal regulators in conjunction with the ignition operation of the appliance. Since it is connected to the automatic restoration means, the automatic restoration of the operation lever can be easily performed in conjunction with the ignition operation of the appliance.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of a thermal power control device for a gas combustion appliance according to the present invention will be described below with reference to the drawings.

In the drawings, reference numeral 1 is an operating lever, a locking lever 7 having a locking piece 4 at the front end and an operating knob 5 at the base end, and a valve operating piece 12 at the front end and at the base end. The valve operating lever 8 having the bearing 13 is provided. The support shaft 14 provided at the locking lever 7 is connected to the bearing 1 of the valve operating lever 8.
3 pivotally supports the valve operating lever 8 and the locking lever 7
Is pivotally supported up and down in the drawing with a support shaft 14 as a fulcrum to integrally connect the locking lever 7 and the valve operating lever 8, and the tip of the valve operating lever 8 is connected to the support fitting 2
The operation lever 1 is pivotally mounted on a pivot shaft 15 so that the operation lever 1 can be slid by rotating the pivot lever 15 to the left and right in the figure by a constant stroke l.

The tip locking piece 4 of the locking lever 7 is provided on the locking step portion 3 provided on the support fitting 2 and the operation knob 5 of the locking lever 7 is provided.
The lock lever 7 is disengaged by moving the lock lever 7 up and down, and the locking lever 7 is constantly urged by the torsion spring 6 in the direction in which the tip locking piece 4 is locked by the locking step portion 3. In the state in which 5 is not lifted, the locking piece 4 is kept locked by the locking step portion 3 and moves along the lower surface of the bending plate 20 including the locking step portion 3. Therefore,
By lifting the operation knob 5 at the base end against the biasing force of the torsion spring 6, the locking lever 7 is rotated clockwise in the drawing, and the locking piece 4 is unlocked from the locking step portion 3. . Further, the operation pin 18 fixedly planted on the valve shaft 17 of the valve body V is loosely inserted into the slit groove 16 of the valve operation piece 12 of the valve operation lever 8, and the bubble shaft is moved by the left and right movements of the valve operation lever 8. The opening 17 of the thermal power control valve is adjusted by rotating and moving 17 through the bubble operating piece 12 and the operating pin 18. And the supporting metal fitting 2
Is mounted and set on the valve body V via a mounting seat 2a.

Numeral 10 is a limiting convex portion provided in the guide groove 9 of the operating lever 1 formed in the front panel 19 of the instrument, which is provided at a substantially central upper portion of the guide groove 9 and is a locking step by lifting the operation knob 5. When the operating lever 1 is moved in the low heat direction with the locking piece 4 disengaged from the portion 3, the proximal end 7a of the locking lever 7 hits the limiting convex portion 10 and the operation is restricted. It has become so. In the embodiment, the limiting convex portion 10 is formed as a triangular convex portion so that even if the base end side 7a of the locking lever 7 hits the limiting convex portion 10, it can relatively smoothly pass along the slope thereof. However, any shape may be used as long as it is a convex portion where the operation is restricted. Further, although the control convex portion 10 is integrally formed with the guide groove 9 in the embodiment, a separately formed limiting convex portion may be attached and fixed to the corresponding portion of the guide groove.

Reference numeral 11 denotes a blocking piece provided on the locking lever 7, which is a state in which the operating knob 5 is lifted and the locking piece 4 is removed until the locking piece 4 is locked to the locking step portion 3. When the operating lever 1 is moved in the direction of low heat, the blocking piece 11 locks the support fitting 2 until the locking piece 4 is locked by the locking step portion 3. Lifting the operation knob 5 by hitting the front surface of the bending plate 20 having the step portion 3, that is,
The locking lever 7 cannot be rotated clockwise in the drawing, and when the locking piece 4 is locked by the locking step portion 3, the blocking piece 11 is disengaged from the bending plate 20, and the locking plate 11 is locked. The stop lever 7 can be rotated clockwise in the drawing. Therefore, when the locking piece 4 is locked by the locking step portion 3, the locking piece 4 with respect to the locking step portion 3 by raising the operation knob 5 is lifted.
Can be unlocked.

A is an automatic restoring means for automatically returning the operation lever 1 from low heat to high heat in conjunction with the ignition operation of the instrument, and swings back and forth in the drawing in conjunction with the operation buttons 26, 28 and 30 of the instrument. The swing rod 21 and the operating rod 23 that rotates back and forth around the pivot 22 as a fulcrum and the projecting piece 24 that is integrally formed with the valve operating lever 8 of the operating lever 1. The ignition operation is performed by pushing the operating button. The rocking rod 21 is tilted to the right in the figure by the
The lower end 23a of the operating rod 23 is pushed to the right in the figure by a, and the operating rod 23 is rotated counterclockwise by a certain angle with the pivot 22 as the fulcrum. Therefore, since the projecting piece 24 is pushed leftward in the drawing by the upper end 23b of the operating rod 23, the operation lever 1 is rotated from the low heat position b to the high heat position a with the pivot 15 as the fulcrum to be automatically restored. (See FIGS. 3 and 4).

FIG. 1 shows an example in which the fire power control device of the present invention is applied to a gas table with a grill. In the drawing, 25 is a stove unit with a small capacity, 26 is its operating button, and 27 is a stove with a large capacity. Reference numeral 28 is an operation button, 29 is a grill portion, 30 is an operation button, and 31 is an exhaust port of the grill.

In the above structure, when the operation lever 1 is moved from the high heat position a to the low heat position b to adjust the heat power from the high heat to the low heat, the operation lever 1 is moved from the high heat position a by the predetermined stroke l as the fulcrum about the pivot 15. Although it is rotated to the low heat position b, in the embodiment shown in FIGS. 2 to 4, the locking lever 7 of the operating lever 1 at the predetermined high heat position a is normally operated by the torsion spring 6 in the counterclockwise direction shown in FIG. Since the locking piece 4 is biased in the direction to be locked by the locking step portion 3 (see the position (a) in FIG. 8), the locking knob 4 can be moved in the low heat direction without lifting the operation knob 5. When it is moved, the locking piece 4 of the locking lever 7 is locked by the locking step portion 3 of the support fitting 2 when it reaches the substantially central portion and is temporarily stopped (see position B in FIG. 8). Therefore, when the operation knob 5 of the operation lever 1 is lifted upward against the biasing force of the torsion spring 6,
The locking lever 7 is rotated clockwise in the drawing with the support shaft 14 as a fulcrum to disengage the locking piece 4 from the locking step portion 3 (see the state of the chain line in FIG. 3 and the position of the chain line in FIG. 8B). After that, when the operation knob 5 is continuously lifted and moved in the low heat direction, the operation lever 1 reaches a predetermined low heat position b (see the state of the chain line in FIG. 4 and the position of C in FIG. 8), and the valve operating lever 8 is reached. The valve actuating piece 12 rotates the valve shaft 17 back and forth to control the heat power to low heat.

Next, in the operation of adjusting the heat power from the high heat to the low heat, the operation knob 5 at the predetermined high heat position a is lifted from the beginning, and the engagement piece 4 of the engagement lever 7 causes the engagement stepped portion of the support fitting 2. When it is moved in the direction of low heat in the unlocked state in which it is not locked to 3 (see position a in FIG. 9), the locking piece 4 is not locked to the locking step portion 3 but does not stop once, but in the middle Since the base end side 7a of the locking lever 7 hits the restriction convex portion 10 of the guide groove 9 and is disturbed (see the position of A → B in FIG. 9), the operation is restricted midway and the low heat position b is set. Reach (see position C in FIG. 9). Therefore, even if there is an erroneous operation in which the operation knob 5 is lifted from the beginning and abruptly moves in the direction of low heat, the operation is restricted by the restriction convex portion 10, so that there is no misfire.

Further, in the embodiment of FIGS. 5 to 7, the locking lever 7 of the operating lever 1 is provided with the blocking piece 11, and the locking piece 4 of the locking lever 7 is the locking step portion 3 of the support fitting 2. The blocking plate 11 has the locking step portion 3 until it is locked to the folding plate 2
Since the operation knob 5 cannot be lifted by hitting the front surface of 0, that is, the locking lever 7 cannot be rotated clockwise in the drawing, the operation lever 1 is lifted from the beginning in the low heat direction. There is no erroneous operation of moving to. That is, when the operating lever 1 is moved from the high-fire position a to the low-fire position b, the locking piece 4 is always locked by the locking step portion 3 in the middle of the operation, so that there is no misfire. Therefore, when the locking piece 4 is locked to the locking step portion 3, the blocking piece 11
Allows the operating knob 5 to be lifted off from the bending plate 20. Therefore, after that, since the locking piece 4 can be unlocked from the locking step portion 3 by lifting the operation knob 5, the subsequent operation to the low heat position b can be performed without any trouble.

The operating lever 1 is composed of a locking lever 7 and a valve operating lever 8. The locking lever 7 has its locking piece 4 locked to the locking step portion 3 of the support fitting 2 with respect to the valve operating lever 8. Since the torsion spring 6 biases the operating lever 1 in the direction (counterclockwise in the drawing),
Not only moving from the low heat position b to the low heat position b, but also when the low heat position b is restored to the high heat position a (see FIGS. 8 and 9 c → b → a), the bending including the locking step portion 3 Board 20
The movement of the locking piece 4 with respect to the lower surface of the is smooth and reliable.

Further, since the operating lever 1 is connected to the automatic restoring means interlocking with the ignition operation of the appliance, the operating lever 1
Restoration from the low heat position b to the high heat position a is performed in conjunction with the automatic restoration means. Therefore, the instrument operation buttons 26, 2
When 8 and 30 are pushed to perform ignition operation, the lower end 23a of the operating rod 23 is pushed to the right in the figure by the tip of the swing rod 21 that interlocks with the operating buttons 26, 28 and 30, and the upper end 23 thereof is pushed.
By automatically pushing the protruding piece 24 of the valve operating lever 8 of the operating lever 1 to the left in the figure with b, the automatic restoration of the operating lever 1 from the low heat position b to the high heat position a can be performed easily and reliably.

Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and it is needless to say that the present invention can be implemented in various modes without departing from the scope of the present invention. is there. For example,
In the embodiment, the operation lever is slid laterally, but the operation lever may be slid vertically or obliquely. Also, as shown in FIG.
A convex surface portion 10a for preventing the operation knob 5 from being lifted up is provided on the high-fire side of the guide groove 9 of the operation lever 1, and the base end of the engagement lever 7 is provided until the engagement piece 4 is engaged with the engagement step portion 3. The side 7a is held by the convex portion 10a and the operation knob 5 cannot be lifted,
When the locking piece 4 is locked to the locking step portion 3, misfire is effective even if the proximal end 7a of the locking lever 7 is disengaged from the convex surface portion 10a and the operation knob 5 can be lifted. Can be prevented. The movement of the operation lever 1 is the same as that in FIG. 8, and the same portions are denoted by the same reference numerals and the description thereof is omitted.

[0025]

According to the first aspect of the present invention, there is provided a thermal power adjusting device for a gas combustion appliance, wherein the operating lever comprises a locking lever and a valve operating lever, and the locking lever is provided on the valve operating lever. Is urged by a spring in a direction to be locked to the locking step of the support fitting and is pivotally supported, and this is pivotally installed on the support fitting so that the locking piece can be disengaged from the locking step. Sliding operation of the accompanying operating lever is easy and reliable. Therefore, it is easy to use and there is no erroneous operation.

Further, when the operating lever is moved from high heat to low heat, even if the operation lever is moved in the direction of low heat in the unlocked state of the locking piece with respect to the locking step, the operation is restricted by the restriction convex portion. It is safe to use as it will not cause a misfire even if there is an erroneous operation in which the control knob is raised while moving when adjusting the heat power from high to low.

Further, in the second aspect of the present invention, there is provided the heating power adjusting device for the gas combustion appliance, wherein the locking lever of the operating lever is provided with the blocking piece, and the locking piece is locked until the locking piece is locked by the locking step portion. Since the lock can not be unlocked, the erroneous operation of moving the operation lever in the low heat direction when the locking piece is unlocked is eliminated. Therefore, there is no accidental misfire caused by moving the operation lever in the direction of low heat with the operation knob being raised, and it is safe.

Further, in the third aspect of the present invention, there is provided the thermal power adjusting device for a gas combustion appliance, wherein the operating lever is connected to the automatic restoring means for automatically restoring from a low heat to a high flame in conjunction with the ignition operation of the appliance. The automatic restoration of the operating lever can be performed easily and reliably in conjunction with the ignition operation.

[Brief description of drawings]

FIG. 1 is a perspective view of a firepower control device of the present invention applied to a gas table with a grill.

FIG. 2 is a perspective view of a main part.

FIG. 3 is a vertical sectional side view of a main part.

FIG. 4 is a plan view of a main part.

FIG. 5 is a vertical sectional side view of a main part of a different embodiment.

FIG. 6 is a plan view of a main part.

FIG. 7 is a perspective view of a main part.

FIG. 8 is an explanatory diagram showing a relationship between a tip locking piece and a locking step portion of the locking lever, a base end portion of the locking lever, and a guide groove during normal operation.

FIG. 9 is an explanatory diagram when the operation knob is lifted from the beginning and operated.

FIG. 10 is an explanatory view of the embodiment in which guide grooves are different.

[Explanation of symbols]

1 control lever 2 Support bracket 3 Lock step 4 locking pieces 5 operation knob 6 spring 7 Locking lever 8 valve operating lever 9 guide groove 10 Limited convex part 11 blocking pieces 12 Valve operating piece A automatic restoration means

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-7-305850 (JP, A) JP-A-60-240920 (JP, A) JP-A-8-178282 (JP, A) JP-A-8- 159466 (JP, A) Actual Kaihei 3-30119 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) F23N 5/26 F24C 3/12 F24C 15/00

Claims (3)

(57) [Claims] 1. A gas combustion appliance provided with a lever locking means for preventing misfire by temporarily stopping the operation of the operation lever in the direction of low heat when adjusting the heating power from high heat to low heat by sliding the operation lever. In the heat power adjusting device, the operating lever has a locking piece that engages and disengages with a locking step of the support fitting at the tip, and has a locking lever having an operation knob at the base and a valve operating piece at the tip. A valve operating lever, and the locking lever is pivotally supported on the valve operating lever by a spring urging the locking piece in a direction in which the locking piece locks on the locking step portion, and the operating lever is mounted on the support metal fitting. The guide groove of the operation lever provided on the front panel of the instrument is installed so that it can be slid, and there is a limiting projection that limits the operation of the locking piece to the locking step in the direction of low heat when the locking piece is unlocked. Gas combustion characterized by having Combustion control system of the ingredients. 2. A gas combustion appliance equipped with a lever locking means for preventing a misfire by temporarily stopping the operation of the operation lever in the direction of the low heat when adjusting the heat power from high heat to low heat by sliding the operation lever. In the heat power adjusting device, the operating lever has a locking piece that engages and disengages with a locking step of the support fitting at the tip, and has a locking lever having an operation knob at the base and a valve operating piece at the tip. A valve operating lever, and the locking lever is pivotally supported on the valve operating lever by a spring urging the locking piece in a direction in which the locking piece locks on the locking step portion, and the operating lever is mounted on the support metal fitting. The locking lever of the operation lever is provided so as to be slidable, and the locking lever of the operation lever is provided with a blocking piece for blocking the movement of the locking piece to the unlocked state until the locking piece is locked to the locking step portion. A gas-fired appliance thermal power control device characterized by . 3. The heat control device for a gas combustion appliance according to claim 1, wherein the operation lever is connected to an automatic restoring means for automatically restoring from a low heat to a high heat in conjunction with the ignition operation of the appliance. .