JPH0141016Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a locking device for an operating section of a gas appliance such as a gas stove, which adjusts the firepower.

When igniting a gas appliance, it is easier to ignite it by setting the gas flow rate to the maximum, so the fire power adjustment member can be returned to the maximum position as soon as the fire is extinguished, and it can be kept in this position at all times when the fire is extinguished. There is something that locks onto the however,
Conventional locking devices of this type generally have complex combinations of cams and link mechanisms, and have a large number of parts, a complex structure, and tend to be expensive.

The present invention has focused on this point and has been devised for the purpose of providing a locking device for a fire power adjustment member that has a simple structure, can be manufactured at low cost, and is reliable in operation. That is, by operating the extinguishing operation member of the ignition extinguishing operation section, the ignition operation member of the ignition extinguishing operation section is returned to the extinguishing position, and the fire power adjustment member of the fire power adjustment operation section is moved to the maximum fire power position, and the extinguishing state is returned. A fire power adjustment member locking device for a gas appliance configured to hold the fire power adjustment member at the maximum fire power position, wherein a lock member that rotates in conjunction with the ignition operation member is provided in the ignition/extinguishing operation part; An interlocking arm that moves in conjunction with the firepower adjustment member is provided in the firepower adjustment operation section, and in the extinguishing state, the interlocking arm engages with the locking member to prevent the firepower adjustment member from moving in the direction of the minimum firepower position. The lock member is characterized in that the interlocking arm and the lock member are disengaged in the ignition state.

Next, the present invention will be specifically explained with reference to an illustrated embodiment.

Fig. 1 is a partially cutaway schematic plan view of the whole, and Fig. 2 is a plan view of the fire power adjustment operation section, where A is the ignition/extinguishing operation section that opens and closes the gas valve and ignites the burner, and B.
is a thermal power adjustment operation unit that adjusts the gas flow rate.

1 and 2 are piano touch type ignition operation members and extinguishing operation members, respectively, which are supported by a support shaft 5 attached to a frame 4;
is a sliding firepower adjustment member, and the support shaft 5
The guide shaft 5a coaxially extends from one end of the guide shaft 5a. Reference numeral 6 denotes a gas tank main body which is fixed to the frame 4, and a main valve and a pilot valve installed therein are opened and closed by pressing a main valve opening/closing button 7 and a pilot valve opening/closing button 8. Reference numeral 9 denotes a gear cam of the gas flow rate regulator 9a, which rotates while meshing with a sector gear 10 connected to the thermal power adjustment member 3 to adjust the gas flow rate. A piezoelectric igniter (not shown) is provided at the right end of the support shaft 5 and is activated by rotation of the shaft.

Reference numeral 11 denotes an ignition operation cam made of a U-shaped metal fitting fixed to the support shaft 5, and the operation portion 1a is integrally molded to constitute a part of the ignition operation member 1. Reference numeral 12 denotes a main valve opening/closing cam made of a U-shaped metal fitting, which is disposed inside the ignition operating cam 11 and loosely inserted into the support shaft 5. These cams 11 and 12 operate the open/close buttons 7 and 8 of the gas tank main body 6, and rotate when the ignition operating member 1 is pushed down, and the open/close button 8 is pushed through levers (not shown) to open the pilot valve. As shown in FIGS. 6a and 6b, the opening/closing button 7 is pressed via the ignition lever 13 pushed by the rotated cam 12 to open the main valve. The lock spring 1 is attached to the upper plate 4a of the frame 4 in the lock groove 12a of the frame 4.
2b is engaged, and the ignition operating member 1 is configured to be locked in the depressed position.

Reference numeral 14 denotes a fire extinguishing operation cam made of a U-shaped metal fitting, with an operating portion 2a integrally molded to constitute a part of the fire extinguishing operation member 2, and loosely inserted into the support shaft 5. As shown in FIG. 3, this fire extinguishing operation cam 14 is formed with a round hole 15 for rotatably attaching it to the support shaft 5, and a convex cam portion 16 for unlocking is formed on one side piece. A protrusion 17 for interlocking with the firepower adjustment operation part B is protruded from the lower part of the other side piece.

18 is fitted into the support shaft 5 and has one end attached to the frame 4.
This is a return spring whose other end is latched to the cam fitting 14 on the top plate (not shown) of the top plate (not shown) to apply a return force to the fire extinguishing operation member 2. Further, the cams 11 and 12 are also provided with return springs (not shown), and when the extinguishing operation member 2 is pushed, the convex cam portion 16 is released from the lock spring 12b.
is pushed up to unlock the second cam 12, and a return spring (not shown) releases the support shaft 5 and cams 11 and 1.
2 returns to the extinguishing position and extinguishing the fire.

The firepower adjustment operation section B includes a slider 21 that is slidably inserted into the guide shaft 5a, and an operation section 3 that is integrally molded with a guide plate 22 that is fixed to the slider 21.
Thermal power adjustment member 3 consisting of a, etc., and sector gear 1
0 and related interlocking mechanism C, etc., the forked part 10a of the sector gear 10 of the guide plate 22 is connected by a pin 23, and by moving the operating part 3a left and right along the guide shaft 5a, The gear cam 9 of the gas flow regulator 9a is driven via the sector gear 10, and moving the operating part 3a to the left reduces the firepower, and moving it to the right increases the firepower. There is.

On the opposite side of the gear part of the sector gear 10 is a pin 24.
A link 25 is connected to the frame 4 through a long hole 25a, and a pin 26 connects the frame 4 to the other end of the link 25.
An interlocking arm 27 supported by is connected via a pin 28. And the tip 2 of the interlocking arm 27
7a is introduced into the extinguishing operation section A, and when the operation section 2a of the extinguishing operation member 2 is pushed down, the protrusion 17 of the extinguishing operation cam 14 pushes the tip 27a, and the sector gear 10 rotates counterclockwise. Firepower adjustment member 3
is adapted to move to the maximum firepower position (the position shown in FIG. 2) at the right end of the guide shaft 5a. Further, a locking member 3 as shown in FIG.
1 is provided, and the tip 27 of the interlocking arm 27
A cutout portion 31a is formed in which the portion a engages.

This locking member 31 is urged upward by a spring (not shown), and is kept horizontal in the extinguished state as shown in FIG. 6a, but in the ignited state when the ignition operating member 1 is depressed Then, as shown in FIG. 6b, since the ignition lever 13 is pressed down, the tip 27a of the interlocking arm 27 is in the notch 31.
a, and in the extinguished state, the tip 27a engages with the notch 31a, restricting the rotation of the interlocking arm 27, and making it impossible to move the firepower adjustment member 3 to the left.

33 is a partition plate that constitutes a part of the frame 4;
It is located between the ignition/extinguishing operation part A and the fire power adjustment operation part B, and supports the end of the penetrating support shaft 5, and as shown in FIG.
penetrates through. Further, a locking piece 34 is provided on the guide plate 22 of the firepower adjusting member 3 to protrude in the direction of the partition plate 33, and an insertion hole 35 is bored in the partition plate 33 corresponding to this. Furthermore, an engagement piece 36 is fixed to the end of the support shaft 5, and the insertion hole 35 is opened and closed according to the rotation of the support shaft 5, as shown by the chain line in FIG. The lock piece 34 can be inserted into the insertion hole 35 only at that time.

As described above, in the extinguishing state, the fire power adjustment member 3 is always at the maximum fire power position due to the operation of the interlocking mechanism C constituted by the interlocking arm 27, the link 25, etc. When engaged, it cannot move toward the minimum firepower position, so ignition is always performed at the maximum firepower state. Also, when the fire power adjustment member 3 is moved to the right in the extinguished state, the lock piece 34 is inserted into the insertion hole 35,
Even if an attempt is made to rotate the support shaft 5, the hook portion 36a of the engagement piece 36 will get caught on the lock piece 34, and the ignition operating member 1 will be locked and cannot be pushed down. This will prevent things like this from happening. In addition, in the ignition state, the lock member 31 is pushed down by the ignition lever 13, so the interlocking arm 27 is pushed down by the lock member 3.
1, the firepower can be adjusted freely.

The thermal power adjustment operation section B is provided with a moderation mechanism D for positioning the thermal power adjusting member 3 and the like. That is, as shown in FIG. 2, a moderation ball 39 is provided at the upper end of the slider 21 and biased upward by a spring 40, and the upper plate 4a of the frame 4 covering the firepower adjustment operation part B corresponds to this. Cutouts 41, 42 and 43 are provided for moderation. Notch 4
Reference numerals 1 and 42 are formed with holes or appropriate recesses, and the notch 41 is used to control the moderation ball 39 when the fire power adjustment member 3 returns to the maximum fire power position in conjunction with the operation of the fire extinguishing operation member 2. The notch 42 is provided at a position where the moderation ball 39 engages when the fire extinguishing operation member 2 is moved further to the right to lock the ignition operation member 1. The notch 43 is formed by providing an upwardly inclined piece 43a at a position where the moderation ball 39 engages while the fire power adjusting member 3 is being moved to the minimum fire power position. This notch 43 is to prevent the fire from extinguishing or abnormal combustion if the fire power is suddenly lowered. , any shape is sufficient as long as it feels almost no resistance when increasing the firepower, and other shapes can also be adopted.

In addition, although the above-mentioned embodiment shows an example using a piano touch type ignition operation member, a fire extinguishing operation member, and a sliding type fire power adjustment member, a rotary type can also be used as each member.

As is clear from the description of the above embodiments, the present invention includes an interlocking mechanism that moves the fire power adjustment member to the maximum fire power position in conjunction with the extinguishing operation of the ignition extinguishing operation section, and a mechanism that rotates in conjunction with the ignition operation member. A locking member is provided, and the locking member is engaged with the interlocking mechanism when the fire is extinguished.With a relatively simple structure, the fire power adjustment member can always be locked at the maximum fire power position when the fire is extinguished. , it becomes possible to ignite reliably.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a partially cutaway schematic plan view, Fig. 2 is a front view of the firepower adjustment operation section, Fig. 3 is a perspective view of the fire extinguishing operation cam, and Fig. 4
The figure is a perspective view of the lock member, FIG. 5 is a side view of the partition plate, and FIGS. 6a and 6b are explanatory views of the operation of the ignition lever during extinguishing and ignition. 1...Ignition operation member, 2...Extinguishing operation member, 3
... Fire power adjustment member, 9 ... Gear cam, 9a ... Gas flow rate regulator, 10 ... Sector gear, 25 ... Link, 27 ... Interlocking arm, 31 ... Lock member, A ... Point extinguishing operation section, B ...Firepower adjustment operation section, C...Interlocking mechanism.

Claims (1)

[Scope of Claim for Utility Model Registration] By operating the fire extinguishing operation member of the ignition extinguishing operation unit, the ignition operating member of the ignition extinguishing operation unit is returned to the extinguishing position, and the fire power adjustment member of the fire power adjustment operation unit is returned to the maximum fire power position. In a fire power adjustment member locking device for a gas appliance configured to move the fire power adjustment member to the maximum fire power position in the extinguished state, the lock member that rotates in conjunction with the ignition operation member is turned on and off. An interlocking arm is provided on the operation section and moves in conjunction with the firepower adjustment member, and in the extinguishing state, the interlocking arm engages with the locking member to adjust the minimum firepower position of the firepower adjustment member. A locking device for a fire power adjusting member of a gas appliance, which is configured such that movement in the direction is prevented and the interlocking arm and the locking member are disengaged in the ignition state.