JPH087241Y2 - Push button device for gas combustion appliances - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a push button device for a gas combustion appliance such as a gas table stove.

[0002]

2. Description of the Related Art A conventional push button device of this type is, for example,
As shown in Japanese Utility Model Publication No. 1-44928 (only the main part of which is shown in FIG. 2), the inner pressing surface 1a of the push button 1 is brought into direct contact with the tip surface 2a of the operating shaft 2, and the push button is pressed. When the push button 1 is pushed in, the inner pressing surface 1a of
It is configured to have an inclined surface that is substantially orthogonal to -X. In FIG. 2, the same parts as those of the present invention are given the same names and reference numerals.

[0003]

In the above-mentioned conventional technique, the operation shaft 2 is directly pushed by the inner pushing surface 1a of the push button 1,
In addition, in a range from a position where the inner pressing surface 1a of the push button 1 is inclined with respect to the axis line XX of the operation shaft 2 (see a chain line position in FIG. 2) to a position substantially orthogonal thereto (see a solid line position in FIG. 2). Since the operation shaft 2 is pushed, the pressing force of the push button 1 and the pushing power of the operation shaft 2 have a 1: 1 relationship, and the inner pushing surface 1a of the push button 1
Push the operation shaft 2 along the axis X-X with the push button 1
The operating load of is not reduced at all. Also, push button 1
Since the positional relationship between and the operation axis 2 is also limited and constrained,
There was a problem that the degree of freedom in design was halved.

In view of the problems of the prior art, the present invention halves the pressing force of the push button with respect to the pushing force of the operating shaft with a simple structure in which a lever is interposed between the push button and the operating shaft. In addition to improving the operability by reducing the operation load of the push button, the push button device for a gas combustion appliance increases the design freedom because the positional relationship between the push button and the operating shaft is free and unconstrained. It is intended to be provided.

[0005]

In order to achieve the above object, the present invention provides a lever, which is pivotally supported at its base end and is freely tiltable, between a push button and an operating shaft, and an outer upper side of the lever. It is characterized in that the push button and the operating shaft are interlocked with each other by abutting the inner pressing surface of the push button on the portion and the tip end surface of the operating shaft on the lower inner portion.

[0006]

Since the present invention has the above-described structure, the lever force of the lever reduces the pushing force of the push button against the pushing force of the operating shaft. In addition, the interposition of the lever allows freedom in the positional relationship between the push button and the operating shaft, particularly the vertical positional relationship.

[0007]

1 is a side view showing an embodiment of a push button device for a gas combustion appliance according to the present invention, in which a push button 1 is formed into a tiltable lever type with its upper end pivotally supported by a shaft 4. The operation convex portion 1b is provided on the inner side and the operation convex portion 1b is provided on the outer side, and the operation convex portion 1b is provided to be exposed to the front through the window hole 6 on the front surface of the body 5, and is provided below the operation convex portion 1b. It has a stopper piece 1c.

Numeral 2 is an operating shaft for blinking the gas combustion appliance, which is moved forward and backward by a predetermined stroke to open and close the gas valve equipped in the blinker A, turn on and off the switch, etc. The flashing operation of the gas combustion device is performed by performing the above, and a restoring force to the left side in the drawing is applied by a spring or the like.

Reference numeral 3 is a lever provided between the push button 1 and the operating shaft 2, and the base end is pivotally supported by a shaft 8 on a support piece 7 provided in the blinker A so that the tilting can be performed freely. The convex portion 3a is provided on the upper outer portion thereof, and the inner surface is formed as the smooth surface 3b.

The push button 1 is provided on the convex portion 3a on the upper outer side of the lever 3.
The lower part of the inner pressing surface 1a is brought into contact, and the tip end surface 2a of the operating shaft 2 is brought into contact with substantially the middle position of the inner smooth surface 3b so that the push button 1 and the operating shaft 2 are interlocked via the lever 3. I am trying to do it. The push button 1, the operating shaft 2 and the lever 3 are always in pressure contact with each other by the restoring force of the operating shaft 2 so as to cooperate with each other.

In the above structure, when the push button 1 is pushed to the right in the figure as shown by the arrow a when the gas combustion appliance is ignited, the push button 1 is rotated counterclockwise in the figure about the shaft 4 as a fulcrum, and the push button 1 is rotated. By pressing the convex portion 3a on the upper and outer sides of the lever 3 with the lower part of the inner pressing surface 1a, the lever 3 is rotated clockwise in the figure with the shaft 8 as the fulcrum, and the operating shaft 2 is shown in the right side by the smooth surface 3b inside the lever 3. Blinker A by pushing a certain stroke toward
Is operated to ignite, and the operation shaft 2 is locked at a slightly retracted position (see the position from the solid line to the position of the chain line in FIG. 1).

In the series of ignition operations, the pressing force (operating load) of the push button 1 with respect to the pressing force (operating load) of the operating shaft 2 is reduced by the intervention of the lever action of the lever 3. That is, when the tip end surface 2a of the operation shaft 2 is brought into contact with the intermediate position of the inner smooth surface 3b of the lever 3, the operation load of the push button 1 becomes 1/2, and the operation load is increased as the contact position goes below the intermediate position. Is gradually reduced. However, since the operation stroke of the operation shaft 2 is constant, the push stroke of the push button 1 gradually increases.

When extinguishing a gas combustion appliance, when the push button 1 in the combustion position (the position indicated by the chain line in FIG. 1) is pushed slightly to the right in the figure, the operating shaft 2 is unlocked and to the left in the figure due to the restoring force. Move a fixed stroke and return to the original position to activate flasher A and extinguish the fire. When the operating shaft 2 is returned to its original position, the push button 1 is rotated clockwise by the restoring force of the operating shaft 2 via the lever 3 and the stopper 1c is pushed back to the original position where it hits the body 5 (Fig. 1). See the position of the solid line).

In order to reduce the operation load of the push button 1 most,
For example, the upper and outer convex portions 3a of the lever 3 are brought into contact with the uppermost position of the inner pressing surface 1a of the push button 1, and the tip end surface 2a of the operating shaft 2 is brought into contact with the lowermost position of the inner smooth surface 3b of the lever 3. However, it is preferable to set the most ideal position in consideration of the push stroke of the push button 1, the operation stroke of the operation shaft 2, and the like.

Since the push button 1 and the operating shaft 2 are interlocked with each other via the lever 3, there is considerable freedom in the positional relationship between the push button 1 and the operating shaft 2, and in particular, the upper and lower positional relationships are not restricted.

[0016]

As described above, the present invention has a simple structure in which a tiltable lever is interposed between the push button and the operating shaft to reduce the pressing force of the push button against the pressing force of the operating shaft by half. Since the operating load of is reduced and its operability has been improved, it is effective when applied to the push button device of gas combustion appliances such as gas table stoves that are frequently used,
There is no danger of failure in combination with the simple structure.

Further, since the positional relationship between the push button and the operating shaft also has considerable freedom and is not constrained, the degree of freedom in design is increased and the commercial value of the gas combustion appliance can be increased.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of a push button device for a gas combustion appliance according to the present invention.

FIG. 2 is a cutaway side view showing only an essential part of a conventional technique.

[Explanation of symbols]

 1 push button 2 operation shaft 3 lever 1a inner pressing surface 2a tip surface 3a upper outer portion 3b lower inner portion

Claims (1)

[Scope of utility model registration request] 1. A lever (3) having a proximal end pivotally supported between the push button (1) and the operating shaft (2) so as to be freely tilted, and an upper outer portion (3a) of the lever (3). The inner pressing surface (1a) of the push button (1) is brought into contact with, and the tip end surface (2a) of the operation shaft (2) is brought into contact with the lower inner portion (3b) so that the push button (1) and the operation shaft (2) A push button device for a gas combustion appliance, wherein the push button device is configured to be interlocked via a lever (3).