JPS60144515A - Locking device of operating part in gas apparatus - Google Patents

Abstract

PURPOSE:To perform steadily the lock of a heating power adjustment operating part and an ignition/extinguishment operating part by a method wherein the movement of a heating power adjustment operating part toward the minimum heating power position and the igniting operation of the ignition/extinguishment operating part under the extinguishment condition are obstructed by the first and second lock members. CONSTITUTION:The first and second lock members 65, 66 are provided so that those members are operated interconnecting with an ignition/extinguishment operating part A. The movement of a heating power adjustment operating part B toward the minimum heating power position is made to be obstructed by the first lock member 65 under the extinguishment condition. And the igniting operation of the ignition/extinguishment operating part A is made to be obstructed by the second lock member 66 under the extinguishment condition. Thereby, the lock of the heating power adjustment operating part and the ignition/extinguishment operation part can be performed steadily by a simple structure.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a locking device for an operating section for igniting and extinguishing a gas appliance such as a gas staple.

When igniting a gas appliance, it is easier to ignite it by setting the gas flow rate to maximum, so you can return the fire power adjustment control unit to the maximum position as soon as the fire is extinguished, and keep it in this position at all times when the gas is extinguished. There is something that locks like this. Furthermore, in order to prevent the fire from being accidentally ignited due to a child's mischief, some fireworks are designed to lock the ignition operating member so that it cannot be operated when the fire is extinguished. However, conventional locking devices of this type often have complex combinations of cams and link mechanisms, resulting in complex structures and high costs.

The present invention has focused on this point, and has been made for the purpose of providing a locking device for the operation part of a gas appliance that has a simple structure, can be manufactured at low cost, and is reliable in operation. A fire power adjustment operation part configured to be movable to the desired position, and a first lock member and a second lock member that can be engaged with and detached from the fire power adjustment operation part and operate in conjunction with the ignition extinguishing operation part. The firepower adjustment operation section is
The first lock member is interlocked with the ignition/extinguishing operation section so as to be moved to the maximum fire power position by the extinguishing operation in the ignition/extinguishing operation section, and the first locking member is engaged with the fire power adjustment operation section in the extinguishing state and moves toward the minimum fire power position. It operates to prevent the firepower adjustment operation part from moving in the firepower adjustment operation part, and to release the lock from the firepower adjustment operation part in the ignition state to enable movement of the firepower adjustment operation part in the direction of the minimum firepower position. The second lock member is
In the ignition state, it cannot be locked with the fire power adjustment operation part, and in the extinguishing state, it can be locked with the fire power adjustment operation part, and by locking the fire power adjustment operation part, the ignition operation of the ignition/extinguishing operation part is prevented. It is characterized by operating as follows.

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

Fig. 1 is a partially cutaway schematic plan view, Fig. 2 is a schematic side view, and (1) and (2) are a piano touch type ignition operating member and extinguishing operating member, respectively, and are attached to the frame (4). It is supported by an attached support shaft (5) and (
3) is a sliding firepower adjustment member, which is a support shaft (5).
The guide shaft (5a) coaxially extends from one end of the guide shaft (5a). (6) is the gas cock body and the frame (
4), and the internally installed main valve and pilot valve are opened and closed by pressing the main valve opening/closing button (7) and the pilot valve opening/closing button (8). (9) is a gas flow rate regulator, in which a gear cam (not shown) meshing with a sector gear (lO) connected to the thermal power adjustment member (3) rotates to adjust the flow rate. . (11) is an ignition element (12);
It is an igniter equipped with a hammer (13), a claw cam (14), etc.

(21) is a first cam made of a U-shaped metal fitting that is fixed to the support shaft (5), and the operating part (1a) is integrally molded and forms part of the ignition operating member (1). ing. Further, (22) is a second cam made of a U-shaped metal fitting, which is arranged inside the first cam (21) and loosely inserted into the support shaft (5). (23) is a fire extinguishing cam made of a U-shaped metal fitting, in which the operating part (2a) is integrally molded and constitutes a part of the fire extinguishing operating member (2), and the support shaft (5) has a loose It is inserted.

Figure 3 shows each of these cams (21) (22) (23)
Fig. 3(a) is a perspective view of the first cam (21).
As shown in the figure, a D-shaped hole (25) is provided for non-rotatably mounting on the support shaft (5), and a cutout from the circumferential edge (26a) toward the center is provided at the bottom of one side piece. A cam portion (26) having a shape of (26b) is formed, and an engaging pawl (27) is formed on the upper part thereof toward the inside. In addition, the second cam (22) is attached to the support shaft (5) as shown in Fig. 3(b).
A round hole (28) is provided for rotatable attachment to the
A notch (29) extending from the circumferential edge (29a) toward the center.
b) The cam portion (29) having the cam portion (26) of the first cam (21)
The upper part has an engaging claw (27
) A cutout groove (30) is formed corresponding to the groove. Further, a cam portion (31) having a circumferential edge portion (31a) is protruded from the lower portion of the other side piece, and a lock groove (32) is formed at the upper portion. As shown in Figure 3 (C), the fire extinguishing cam (23) has a round hole (33) for rotatably mounting it on the support shaft (5), and has a convex shape on one side for unlocking. A cam portion (34) is formed, and a cam portion (35) protruding from the lower part of the other side piece is connected to a push rod (36) for operating the sector gear.

(41) is the second support shaft provided below the support shaft (5), (42) and (43) are the second support shaft (41), respectively.
) is an intermediate lever and a pilot lever consisting of a U-shaped metal fitting rotatably supported by the intermediate lever (42).
The cam portions of the first cam (21) and the second cam (22) are
26) An engagement pin (44) that slides into (29) is almost provided, and a separately provided pin (45) is engaged with the elongated hole (46) of the pilot lever (43). (47)
is an ignition lever made of spring material, and the second cam (22)
The base end is fixed to the frame (4) so as to be in sliding contact with the cam part (31) of the ignition lever (47) and the pilot lever (43). It is arranged at a position where the button (8) is pressed.

(51), (52), and (53) are return springs made of coil springs fitted into the support shaft (5). Return spring (51
) is locked at one end to the upper plate (not shown) of the frame (4) and at the other end to the lower end of the cam part (26) of the first cam (21), so that the first cam (21), that is, the ignition A return force is applied to the operating member (1), and the return spring (52) has one end connected to the frame (4).
) and the other end is locked to the second cam (22) and the second cam (22
) is applied with a restoring force. Similarly, the return spring (53) has one end engaged with the frame (4) and the other end engaged with the fire extinguishing cam (23) to apply a returning force to the extinguishing cam (23), that is, the extinguishing operation member (2). . Further, (55) is a similar return spring, which is fitted into the second support shaft (41), and has one end engaged with the intermediate lever (42) and the other end engaged with the pilot lever (43). A rotational force is applied to the cams (21) and (22), and a rotational force is applied to the pilot lever (43) in the direction of the pilot valve opening/closing button (8).

In addition, as will be described later in FIG. 5 and below, the second cam (
The locking part (57a) that engages with the lock groove (32) of 22)
A locking spring (57) having a locking spring (57) is provided on the upper plate of the frame (4). A is the ignition operating member (1) as described above.
, fire extinguishing operation member (2), various cams (21) (22)
(23), various levers (42), (43), and (47).

The firepower adjustment member (3) includes a slider (61) slidably inserted into the guide shaft (5a), and an operation part (3a) integrally molded with the guide plate (62) fixed to the slider (61).
The end of the sector gear (1o) is connected to the guide plate (62) by a pin (63), and the guide shaft (5a
) by moving it left and right along the sector gear (1
0), the gas flow regulator (9) is driven, and moving the operating part (3a) to the left decreases the firepower, and moving it to the right increases the firepower. ing. B indicates a fire power adjustment operation section consisting of the fire power adjustment member (3) as described above.

A connecting piece (10a) is provided at the other end of the sector gear (10).
7- is provided, and one end is connected to the cam part (23) of the fire extinguishing cam (23).
The end of the push rod (36) connected to the connecting piece (1
0a), and when the operation part (2a) is pushed down, the bent part (36a) of the push rod (36) is inserted into the connecting piece (
10a), the sector gear (10) rotates counterclockwise, and the firepower adjustment operation part B moves to the maximum firepower position at the right end of the guide shaft (5a).

(65) and (66) are a first locking member and a second locking member each having a D-shaped outer shape formed near the right end and the rightmost end of the guide shaft (5a), and these locking members (65) Guide plate (62) corresponding to (66)
has a D-shaped guide hole (67) through which the guide shaft (5a) passes.
) is provided. The locking members (65) and (66) rotate with the operation of the ignition operating member (1), but when the ignition operating member (1) is in the ignition position as shown by the chain line in FIG. As shown by the solid line in FIG.
) and at a different angle from the ignition operating member (1).
When the lock member (65) returns to the extinguishing position, the angle of the lock member (65) is different as shown by the broken line, and the angle of the lock member (66) is the same.

In this way, the locking members (65) and (66) are provided so that they rotate together with the ignition operating member (1), and at different angles to each other, so that in the extinguishing state, the firepower adjustment operating section B is 65) and cannot move toward the minimum firepower position, and ignition is always performed in the maximum firepower state. Furthermore, when the firepower adjustment operation part B is moved to the right in this state, the locking member (66) is inserted into the guide hole (67), and the ignition operation member (1) is locked and cannot be rotated, so that it cannot be pushed down. This prevents the fire from being accidentally ignited by a child or the like. On the other hand, in the ignition state, the lock member (65) and the guide hole (67) are at the same angle, and the fire power adjustment operation part B can freely move in the direction of the minimum fire power position without being blocked by the lock member (65). Further, since it does not fit into the locking member (66), it will not be locked.

Next, the operation of the ignition/extinguishing operation section A will be explained with reference to FIG. 5 and the following drawings. Note that these drawings only show parts related to the ignition operating member (1), and the springs (51), (52), and (55) are omitted to avoid complicating the drawings. Figure 5 shows the standby state, that is, the extinguished state, Figure 6 shows the state where the ignition operation member (1) is pushed down a little after starting the ignition operation, and Figure 7 shows the state where the ignition operation member (1) is pushed down the most. 8 shows the state in which the ignition operating member (1) is held in the ignition position after the ignition operation is completed, and in the standby state, the main valve open/close button (7) is pressed.
and the pilot valve open/close button (8) are kept in a protruding state by a built-in spring, and the gas cock body (6
) main valve and pilot valve are closed.

When the ignition operation member (1) begins to rotate after starting the ignition operation, the engagement pin (44) is first pushed by the cam portion (29) of the second cam (22), causing the intermediate lever (42) to rotate. The pilot lever (43) is also pushed and rotated via the return spring (55), and the pilot valve open/close button (8)
is pressed to open the pilot valve. On the other hand, in response to the rotation of the support shaft (5), the igniter (11) is activated to ignite the pilot burner (not shown), and then the ignition lever (47) is activated by the cam of the second cam (22). The main valve opening/closing button (7) is pressed to open the main valve and ignite the main burner (not shown). The engagement pin (44) is connected to the second cam (
As the edge (22) rotates further, the edge (2
9a), and the intermediate lever (42) is kept in a rotating state.

When the ignition operating member (1) is subsequently pushed to the state shown in FIG. 7, the engagement pin (44) engages the edge (
The sliding contact position moves from 29a) to the edge (26a) of the first cam (21), and the diameter of the edge (26a) is set slightly smaller than that of the edge (29a), so the intermediate lever (42) It returns slightly counterclockwise, but the button (8) is kept pressed and the ignition lever (47) is pressed against the edge (31).
The button (7) is also kept in a pressed state by sliding in contact with a). At this position, the lock groove (32) of the second cam (22)
The locking portion (57a) of the lock spring (57) engages with the second cam (22), thereby locking the second cam (22).

This completes the ignition operation, so ignition operation member (1) 11
- When you stop pressing , the first cam (21) engages the engagement claw (2
7) is engaged with the notch groove (30) of the second cam (22).
It is rotated clockwise by the return spring (51) to the position regulated by , and the state shown in FIG. 8 is reached. The cam portion (26) of the first cam (21) is formed in such a shape that the engagement pin (44) moves from the edge (26a) to the notch (26b) in this state, so the intermediate lever (42) further rotates counterclockwise, and the pressing force of the return spring (55) becomes smaller than the return force of the pilot valve opening/closing button (8).
The pilot lever (43) also rotates clockwise to close the pilot valve and turn off the pilot burner. By appropriately selecting the position of the notch (26b), the rotation angle at which the ignition operating member (1) returns from the state shown in FIG. 7 to the state shown in FIG. The angle θ relative to the state shown in FIG. 5 can be made considerably large, and the ignition state can be easily visually confirmed.

When extinguishing a fire, all you have to do is push down the fire extinguishing operation member (2), and the fire extinguishing cam (23) rotates and the convex cam part (34) pushes up the locking part (57a) of the lock spring (57), =
12- The lock of the second cam (22) is released and the return spring (52) is released.
), the second cam (22) returns together with the first cam (2), returning to the state shown in FIG. 5, and the main valve is also closed. At this time, the notch (29b) of the second cam (22)
The engagement pin (
44) is pushed, the intermediate lever (42) once rotates significantly counterclockwise, and then the engagement pin (44) engages the cam part (2).
9) and return to the notch (29b) side. As described above, this fire extinguishing operation automatically moves the fire power adjustment member (3) to the maximum fire power position.

In addition, in the embodiment described above, the locking member (65) (6
6) and the guide hole (67) are D-shaped, but these shapes may be other non-circular shapes that cannot rotate relative to each other when in the inserted state. The members (65) (66) and the guide hole (67) may not be coaxial with the guide shaft (5a) but may be provided at different positions. Furthermore, although the cams (21), (22), etc. have a mouth shape, they may have other shapes, and the intermediate lever (42) and pilot lever (43) are integrated using a spring material. It can also be formed in

As is clear from the description of the embodiments above, the present invention includes first and second lock members that operate in conjunction with the ignition/extinguishing operation section, and the first lock member controls the fire power adjustment operation section in the extinguishing state. It is designed to prevent movement in the direction of the minimum fire power position, and to prevent the ignition operation of the ignition/extinguishing operation part in the extinguishing state with the second lock member, and the simple structure allows the fire power adjustment operation part and the ignition/extinguishing operation part to be prevented from moving in the direction of the minimum fire power position. This has the advantage that the lock can be reliably performed.

[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 schematic side view, and Fig. 3(a) (
b) (c) is a perspective view of each cam, Fig. 4 (a)
(b) and (c) are lines 1-1 and ■-I in Figure 1, respectively.
The I-line, mm-line cross-sectional views, and FIGS. 5 to 8 are explanatory views of the operation during the ignition operation. (])...Ignition operation member, (2)...Fire extinguishing operation member, (3)...Fire power adjustment member, (5)...Support shaft, (5a)... Guide shaft, (6)... Gas cock body, (7)... Main valve open/close button, (8
) River/Pylon 1 valve open/close button, (23) Old fire cam, (51) (52) (53)...Return spring, (62) Guide plate, (65)...No. 1 locking member, (66)...second locking member, (67
)... Guide hole, A... Point fire extinguishing operation part, B...
...Firepower adjustment operation section. Patent applicant: Tada Corporation Attorney: Shino 1) Minoru

Claims (1)

[Claims] (1) A fire power adjustment operation part configured to be movable from a maximum fire power position to a minimum fire power position, a first locking member that can be engaged with and detached from the fire power adjustment operation part, and that operates in conjunction with the ignition extinguishing operation part; The fire power adjustment operation part is turned on and off so as to be moved to the maximum fire power position by the fire extinguishing operation in the ignition and extinguishing operation part. The first locking member is interlocked with the fire control unit, and is engaged with the fire power adjustment unit in the extinguishing state to prevent the fire power adjustment unit from moving in the direction of the minimum fire power position, and also locks the fire power adjustment unit in the ignition state. The second locking member is operated to release the lock from the adjustment operation part and enable movement of the firepower adjustment operation part in the direction of the minimum firepower position, and the second lock member is locked to the firepower adjustment operation part in the ignition state. A gas appliance characterized in that the gas appliance is capable of being locked with the fire power adjustment operation part in the extinguished state, and operates to prevent the ignition operation of the ignition extinguishing operation part by locking the fire power adjustment operation part. A locking device for the operating section of the machine.