JPS6290812A - Assembly of and assembly jig for push-button - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an assembly method for attaching a push button to a panel of an electrical product and a push button assembly jig used for the attachment.

[Conventional technology]

Conventionally, as shown in FIG. 4, a button that is generally attached to a front panel is made by standing a coil spring 4 upright at the approximate center of the bottom 3 of the button hole 2 of the front panel 1, and attaching the button from the top. 5 into the button hole 2 as shown by the chain line 5'. The push button 5 has a button body 5a having a claw 5C on the side.
and a hollow shaft 5b protruding perpendicularly thereto. During assembly, the shaft 5b is inserted into the coil spring 4, and the shaft 5b plunges into the shaft J1.3a formed in the center of the buttonhole bottom 3. . At this time, the claw 5C engages with the side groove 2a on the side of the buttonhole 2. Conventionally, this assembly work was performed simply by manual insertion.

[Problem that the invention seeks to solve]

As mentioned above, the push button 5 to the front panel 1
The assembly was carried out by manual insertion, but at that time, the coil spring hand fell down, making it impossible to assemble the push button 5, and the work had to be redone, and the upright position of the coil spring 4 was not aligned with the shaft hole 3a Due to misalignment, similar problems may occur, reducing work efficiency. In addition, the lower end of the coil spring 4 is inserted between the shaft 5b and the shaft hole 3a, or the shaft 5b is inserted into the longitudinal middle part of the coil spring 4.
These problems may be discovered during the post-assembly inspection stage, causing problems in terms of work efficiency and quality control.

SUMMARY OF THE INVENTION An object of the present invention is to provide a push button assembly jig that can overcome the above problems, improve work efficiency, and eliminate quality control problems.

[Means to Solve the Problems] The means of the present invention to solve the above problems is to use a bar of a jig that is expandable and retractable from the shaft hole at the bottom of the button hole in the front panel in the method of attaching and assembling the front panel Ni/Y button. into the button hole, inserting a coil spring onto the bar, bringing the shaft of the push button into contact with the upper end of the bar, and pressing down the push button to attach it to the front panel. A fixing base, a cylindrical valve spring holder protrudingly fixed to the fixing base, a push spring accommodated in the push spring holder and biased in the axial direction, and a push spring holder mounted on the top of the push spring holder. A push button assembly jig comprising a bar into which a lower end is inserted and which can freely move in and out of the push spring holder, and a guide means that can be engaged with the lower end of a shaft of a push button formed at the upper end of the bar. be.

[Effect]

When assembling a push button to a front panel using the assembly jig of the present invention, first insert a bar into the shaft hole at the bottom of the button/hole from below, and then insert the coil spring of the push button into the bar. Further, the lower end of the shaft of the push button is brought into contact with the upper end of the bar via the guide means and pushed down to complete the assembly. Since the coil spring is fitted onto the bar, it will not fall over during assembly work, and the coil spring will not be wedged between the shaft hole and the shaft.

〔Example〕

Next, the present invention will be described by way of examples with reference to the drawings.

FIG. 1 is a partially cut away side view of one embodiment of the present invention. As shown in this figure, the putunyu button assembly jig 1 of the present invention
0 is the fixed base 11. A cylindrical push spring holder 12 fixed to and protruding from the fixed base 11; a push spring 13 accommodated in the push spring holder 12 and biased in the axial direction; The lower end portion is inserted into the upper part of the press spring holder 12, and the press spring holder 12
It has a bar 14 that can freely move in and out. Push spring holder 12
A guide groove 13a is formed in the longitudinal direction of the bar 14.
A stopper 14a that slidably engages with the guide groove 12a is attached to the lower end of the guide groove 12a. A convex guide means 14b is provided protruding from the upper end surface of the bar 14.

FIG. 2 is a sectional view of the implementation flL when the jig explained in FIG. 1 is applied to assembling a push button to a front panel. In this figure, front panel 1. Button hole 2. Side groove 2a, button hole bottom 3° shaft hole 3a, coil spring 4
．． Push button 5. Button body 5a, shaft 5b, claw 5c
has substantially the same configuration as that explained in FIG. To assemble the push button 5 to the front panel 1, first insert the bar 14 into the shaft hole 3a of the button hole bottom 3 from below, and then insert the coil spring 4 into the bar 14. The lower end of the hollow shaft 5b is brought into contact with the upper end of the bar 14, and the guide means 14b is fitted into the hollow portion of the shaft 5b.

When the push button 5 is pushed down as shown by the arrow P, the button body 5a is press-fitted into the button hole 2 and the claw 5C is inserted into the side groove 2.
At this time, the bar 14 is also pushed by the shaft 5b, the push spring contracts, and the push button 5 is pressed into the holder 12.
The assembly is completed.

After the assembly is completed, the jig 10 is removed from the front panel 1.

The jig 10 may be used by being fixed on a workbench (not shown), or may be held by hand.

As shown in FIG. 3, when the shaft 5b of the push button 5 is solid, a concave guide means 14b is formed at the tip of the bar 14, and the tip of the shaft 5b fits into the guide means 14b.

As is clear from these embodiments, since the coil spring 4 is fitted to the bar 14, the coil panel does not come loose within the front panel l, and the guide means 14b is formed at the tip of the bar 14, and the guide means 14b is formed at the tip of the bar 14. Since the bar 14b and the tip of the shaft 5b are engaged, the assembly operation is performed with the bar 14 and the shaft 5b being coaxial, so that no trouble occurs during the assembly operation.

〔Effect of the invention〕

As explained above, by using the jig of the present invention, when assembling a push button to a front panel,
The assembly prevents the coil spring from getting stuck inside the button, and also completely prevents work problems such as the coil spring getting stuck between the shaft and the shaft hole of the button, or the shaft getting into the coil spring. Therefore, work efficiency is improved and quality control problems are eliminated.

[Brief explanation of drawings]

Fig. 1 is a side view of one embodiment of the present invention, Fig. 2 is a sectional view when Fig. 1 is applied to assembly, Fig. 3 is a partial side view of another embodiment of the invention, and Fig. 4 The figure is an explanatory sectional view of a conventional push button assembly. 1...Front panel, 2...Button hole, 3...
Button hole bottom, 4... Coil spring, 5... Push button, 5b... Shaft, 10... Assembly jig, 11...
Fixing base, 12... Pressing spring holder, 13... Pressing spring, 14... Bar, 14b... Guide means.

Claims (2)

[Claims] (1) In the method of attaching and assembling a push button to the front panel, inserting a bar of a telescopic jig into the shaft hole at the bottom of the button hole on the front panel,
A method for assembling a push button, comprising the steps of: inserting a coil spring onto the bar; bringing the shaft of the push button into contact with the upper end of the bar; and pressing down the push button to attach it to the front panel. (2) a fixing base, a cylindrical push spring holder protrudingly fixed to the fixing base, a push spring accommodated in the push spring holder and biased in the axial direction, and a lower end attached to the top of the push spring holder; 1. A push button assembly jig, comprising: a bar into which the push spring holder is inserted, and which is movable in and out of the push spring holder; and a guide means which is formed at the upper end of the bar and is engageable with the lower end of the shaft of the push button.