JPS589294Y2 - push button device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a push button device used when performing a zero return operation of a tape counter, etc., and is designed to simplify the installation work of the push button and also enable smooth operation of the push button. .

The applicant previously proposed a push button device as shown in FIGS. 1a and 1b in Utility Model Application No. 59933/1983.

To explain this, a through hole 2 is formed in a resin cabinet 1, and a pair of elastic locking pieces 3 and 4 having locking claws 3a and 4a are protruded around the through hole 2. A push button 5 having a substantially T-shaped cross section and a predetermined width in the direction perpendicular to the page is inserted between the locking pieces 3 and 4 from below as shown by the arrow in FIG. A push button 5 is slidably mounted between 3 and 4.

In this way, the push button 5 can be easily attached.

However, in this case, the narrow sleeve portion 5a of the push button 5
Since the wide sleeve portion 5b moves only while being guided around the through hole 2, and there is nothing to guide the movement of the wide sleeve portion 5b, there is a problem that it tends to cause wobbling in the direction of the arrow in FIG.

The present invention aims to eliminate such problems and provide a push button device that allows the push button to be easily attached and has almost no rattling during pressing operation.

An embodiment of the present invention will be described below with reference to FIGS. 2 and 3.

In FIGS. 2 and 3, parts with the same symbols as in FIG. 1 have the same functions.

Guide grooves 3b and 4b are provided in the vertical direction in the center of each of the locking claws 3a and 4a of the elastic locking pieces 3 and 4, respectively.

On the other hand, the push button 6 is provided at its center with an operation plate 6a for pressing a zero return lever (not shown) of the tape counter, and a projection for regulating the movement range in a direction perpendicular to the operation plate 6a. 6b, 6b are provided protrudingly.

Therefore, if the push button 6 is press-fitted between the pair of elastic locking pieces 3 and 4 from below in the same manner as shown in FIG. , 4 can be inserted into the guide grooves 3b, 4b, and the push button 6 can be attached with the head 6c of the push button 6 passing through the through hole 2.

When the push button 6 is pressed in this state, the head 6c of the push button 6 is guided around the through hole 2, and the lower operation plate 6a is guided by the guide grooves 3b and 4b, so that the push button 6 moves forward and backward. It moves extremely smoothly without wobbling to the left or right.

In this case, the push button 6 has its protrusion 6b connected to the locking claw 3a.
, 4a and within the range regulated around the through hole 2.

As described above, according to the present invention, it is possible to easily attach the pushbutton, and the head of the pushbutton is attached to the inner surface of the through hole of the mounting board, and both ends of the lower operation plate are attached to the elastic locking pieces. Since the guide grooves guide each button, rattling of the push button can be almost completely eliminated.

[Brief explanation of drawings]

Figures 1a and b are sectional views showing a conventional example, Figure 2a is a sectional view showing an embodiment of the present invention, Figure 2 is a sectional view taken along line AA' in Figure 2a, and Figure 3. FIG. 2 is a bottom view showing the main parts of the above embodiment. 1... Cabinet (mounting board), 2...
...Through hole, 3.4...Elastic locking piece, 3a, 4a.
...Latching claw, 3b, 4b...Guide groove,
6...Push button, 6a...Operation board, 6b.
...Protrusion, 6c...Head.

Claims (1)

[Scope of utility model registration request] A through hole is formed in a mounting board for a cabinet, etc., a pair of elastic locking pieces are provided on both sides of the through hole to be buttoned on the back side of the mounting board, and each of the elastic locking pieces is locked at the inner lower end of the pair of elastic locking pieces. At the same time as forming a pawl, a guide groove is formed vertically in the inner center of each of the locking pawls, and the head of the push button is freely inserted into and out of the through hole of the mounting board, and the head of the push button is inserted under the push button. A push button device, wherein the push button is slidably mounted between the pair of elastic locking pieces with both ends of the formed operation plate slidably inserted into the guide groove.