JPH0522703Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a push operation device mainly applied to an ignition operation device for gas stoves and other gas appliances.

(Prior Art) The applicant of the present application has previously proposed an example of this type of device, as seen in Japanese Patent Application No. 59-275, which comprises a first operating member which can be pressed against a return spring from a front starting position to a rear terminal position, a locking member which operates to lock the return operation of the first operating member by the spring at an intermediate position, and a second operating member which releases the locking member from this lock, and which is provided with a cam mechanism which detects when the first operating member has been pushed all the way to its terminal position, so that the locking member can be operated only by pushing one end of the first operating member to its terminal position, i.e., by pushing it all the way through, and which operates in response to this.

(Problems to be Solved by the Invention) In this case, the cam mechanism is of a type in which a cam groove is formed in a loop shape on a cam plate fixed to the first operating member, and the lock member is engaged with the cam groove; Alternatively, the lock member may be configured to include a cam plate fixed to the first operating member, a lever that is pushed by the cam plate and tilted downward, and a stopper pin that stops the lever in its downward movement position, and the lock member is attached to the lever. It consists of interlocking models,
All of them have the disadvantage that their configurations tend to be relatively complex and large.

The object of the present invention is to provide a device that does not have such inconveniences, that is, a device that has a simple and compact structure.

(Means for Solving the Problems) The present invention was made based on the above problems, and includes a first operating member that is pressed against the machine frame from a starting position to a final position against a return spring. and a lock adjacent to the first operating member that engages with an engaging portion provided on the first operating member to lock the first operating member at an intermediate position between a starting end position and a terminal end position. and a second operating member for releasing the locking of the first operating member by the locking member, the locking member having a claw piece that engages with the engaging portion and a second operating member that disengages the first operating member. A moving member that is provided in the machine frame and is movable in the moving direction of the first operating member and is biased toward the terminal position of the first operating member by the spring. and the locking member is provided on the movable member, and when the first operating member is pressed to the vicinity of the end position, the claw piece of the locking member engages with the engaging portion provided on the first operating member. while maintaining the first operating member in the possible position, and after the claw piece engages with the engaging portion, the pushing operation is released and the first operating member is bounced by the return spring and returns to the starting position side,
The present invention is characterized in that the movable member is moved toward a small starting end position against a spring along with the return operation.

(Function) In the pressing operation device having the above configuration, when the first operation member is pressed to the vicinity of the terminal position,
A claw piece of the locking member engages with an engaging portion provided on the first operating member. Next, when the pressing operation on the first operating member is released, the first operating member is repelled by the return spring and moves toward the starting end position. Along with this movement, the movable member moves against the spring toward the small starting end position and then stops at that position. Therefore, the first operating member is locked in the middle between the starting position and the ending position by the locking member.

In this state, if the second operating member is pushed, the locking member will reverse the claw piece provided thereon in a direction in which it disengages from the engaging portion on the first operating member side against the spring. The engaging part and the claw piece are released. Therefore, the first operating member is bounced by the return spring and returns to the starting position.

(Example) An example of implementing the present invention will be explained with reference to attached drawings. The drawing shows the case where it is applied to the ignition control device for gas stoves and other gas appliances, where 1 is the appliance body, 2
3 indicates a gas burner, and 3 indicates a gas passage connected to the gas burner. A first operation member 4 is provided on the front surface of the main body 1 so that it can be pressed and operated from a starting position in the front to a terminal position in the rear against a return spring 5. Outer frame 6
At the top, a locking member 7 is provided which operates to lock the member 4 in its intermediate position when the spring 5 returns the member 4, and a second operating member 8 which releases the engagement of the locking member 7. , and is provided substantially parallel to the first operating member 4 to the side so that it can be pressed and operated against a return spring 9.

At the rear of the first operating member 4, there is provided an actuating rod 10 facing the first operating member 4 and an ignition switch 11 on the side thereof. If the pressure is applied against the pressure, the rod 10 will first be pushed and moved backward as shown in the second figure, and the gas valve 12 in the gas passage 3 will open, and then as shown in the third figure. The electromagnetic safety valve 13 behind it is pushed open and the ignition switch 11 is pushed closed so that the burner 2 is given a predetermined ignition. Next, when the pressure on the operating member 4 is released, the first operating member 4
is given a return action by the return spring 5, and the first operating member 4 is locked in its intermediate position by the locking member 7 as shown in the fourth figure. The ignition switch 11 is released from its pressure and opens, and the gas valve 12 remains open and the burner 2 continues its combustion. When the second operating member 8 is then pressed, the locking member 7 is released and the first operating member 4 returns to the state shown in the first figure, the gas valve 12 is closed and the burner 2 is extinguished. becomes.

As shown in FIG. 1, for example, the lock member 7 is adjacent to the lower side of the first operating member 4 and is pivotally supported by a vertical shaft 7a so as to be tiltable inwardly and outwardly, and is actuated inwardly by a spring 7b. In other words, the claw piece 7c, which bends and extends upward, is of a type in which the claw piece 7c is elastically pushed toward the side where it engages with the step portion 4a, which is the engagement portion on the member 4 side.

Although the above is not particularly different from the conventional one, according to the present invention, the first operating member 4 is attached to the machine frame 6, is movable in the moving direction of the first operating member 4, and is supported by the spring 14.
A moving member 16 is provided which is biased towards the terminal position of the
the locking member 7 is provided on the moving member 16;
When the first operating member 4 is pressed to the vicinity of the end position, the claw piece 7c of the locking member 7 is maintained in a position where it can engage with the stepped portion 4a provided on the first operating member 4, and the first operating member 4 to the vicinity of the end position, and the claw piece 7c provided on the lock member 7 engages with the stepped portion 4a, and then the pressing operation is released and the first
When the operating member 4 is bounced by the return spring 5 and returns to the starting end position side, the moving member 16 is moved to the slightly starting end position side against the spring 14 along with the returning operation.

To explain this in detail, as clearly shown in FIGS. 5 to 7, a transparent window 15 having an appropriate width in the longitudinal direction is formed on the lower surface of the machine frame 6, and the transparent window 15 is The first operating member 4 with the tip facing inward
An arm-shaped moving part member 16 is pivotally supported by a shaft 17 at the root, and is supported by a spring 14 so as to be movable in the direction of movement.
the locking member 7 as described above.
is pivotally supported on the moving member 16 by the aforementioned shaft 7a,
In this case, when the first operation member 4 is pressed to the vicinity of the end position, the claw piece 7 of the lock member 7
c engages with a stepped portion 4a provided on the first operating member 4. Then, after the claw piece 7c provided on the locking member 7 engages with the stepped portion 4a, the pressure on the first operating member 4 is released, and the first operating member 4 is flipped by the return spring 5 and moved toward the starting end position. When the moving member 16 moves toward the starting end position, the moving member 16 resists the spring 14 due to the returning operation, and the tip of the moving member 16 moves toward the transparent window 15.
It stops when it hits the inner edge of. This state is, for example, the 6th
As shown in the figure.

Next, considering the case where the operating member 4 is pressed from its starting end position against the return spring 5, the locking member 7 is held at the end position side of the first operating member 4 by the spring 14. Only when the member 4 is pushed to the end position, that is, to the push-off position,
That is, only in the state shown in FIG.
1c, and the claw piece 7c of the locking member 7
The step portion 4a, which is an engaging portion, engages with the step portion 4a. This state is shown by the chain line in FIG. Next, when the pressure on the first operating member 4 is released, the first operating member 4 is returned to its original position by the return spring 5, as shown in FIG. The claw piece 7c remains engaged with the step portion 4a, which is the engagement portion, and moves a little toward the starting end position against the spring 14 while being accompanied by the moving member 16, and then stops, as shown by the solid line in FIG. As shown, the member 4 is now locked in a predetermined intermediate position. Next, the lock member 7 is pushed by the operation of the second operating member 8 described above and becomes disengaged from the stepped portion 4a as shown by the chain line in the same figure, and the next operation is performed. be prepared for.

(Effect of the invention) As described above, according to the present invention, the machine frame is provided with a moving member that is movable in the moving direction of the first operating member and is biased by a spring toward the terminal position of the first operating member. , the locking member is provided on the movable member, and when the first operating member is pressed to the vicinity of the end position, the claw piece of the locking member is at a position where it can engage with the engaging portion provided on the first operating member. At the same time, when the claw piece is engaged with the engaging portion and then the pushing operation is released and the first operating member is bounced by the return spring and returns to the starting end position side, the first operating member is Since the movable member is moved slightly toward the starting end position against the spring, it can only be engaged with the first operating member by a large backward movement, that is, by pushing it toward the end position. There is no predetermined locking operation, and when the locking member is engaged, the locking member moves along with the operating member against the spring, and the operating member can be locked at a predetermined intermediate position. Its configuration is compared to the previously proposed type with a cam mechanism,
It has advantages such as being simple, compact, and inexpensive.

[Brief explanation of drawings]

Fig. 1 is a cut-away side view of an example of a gas appliance equipped with the device of the present invention, Figs. 2 to 4 are cut-away side views of the main parts of the gas appliance in each operating state, and Fig. 5 is a cut-away side view taken along the - line in Fig. 1. The top view, FIGS. 6 and 7 are enlarged cutaway plan views of the main parts in each operating state. 4...First operation member, 5...Return spring, 4a...
...Engagement portion, 7...Lock member, 8...Second operation member, 16...Movement member, 14...Spring.

Claims (1)

[Scope of utility model registration request] A first operating member that is pressed from a starting end position to an end position against a return spring is provided on the machine frame, and an engaging portion provided on the first operating member adjacent to the first operating member. A locking member that engages and locks the first operating member at an intermediate position between the starting end position and the ending position, and a second operating member that releases the locking of the first operating member by the locking member. The locking member includes a claw piece that engages with the engaging portion and a spring that springs the claw piece toward the first operating member, and the locking member is provided with the first operating member on the machine frame. A moving member is provided that is movable in the moving direction and biased toward the terminal end position of the first operating member by a spring, and the locking member is provided on the moving member to press the first operating member to the vicinity of the terminal position. When operated, the claw piece of the lock member is kept in a position where it can engage with the engaging portion provided on the first operating member, and after the claw piece engages with the engaging portion, the pushing operation is released and the lock member is released. When the first operating member is bounced by the return spring and returns to the starting position,
A press operation device characterized in that the movable member is moved toward a small starting end position against a spring along with the return operation.