JPH0538493Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an insulator mounting structure in a switch mechanism.

[Conventional technology]

A conventional insulator mounting structure will be explained with reference to FIG. In FIG. 3, A is an insulator, and convex mounting portions A1 are provided on both the left and right sides of the front and rear ends of the insulator A, respectively. Reference numeral B is a case of the switch mechanism, and fitting holes B1 are provided on both the left and right sides of the front and rear ends of the case, and the mounting portion A1 of the insulator A is fitted into the fitting holes B1, and the insulator A is attached to the case. It is attached to B. C is a bracket attached to the front of case B, D is a slider slidably attached to case B, E is a knob attached to slider D, and F is a spring interposed between knob E and bracket C.

[The problem that the idea aims to solve]

As mentioned above, in the conventional insulator mounting structure, the insulator A is mounted on the case B by fitting the mounted portion A1 provided on the insulator A into the fitting hole B1 provided on the case B.
There is a problem in that play occurs between the assembled insulator A and case B. That is, the attached part A1 of the insulator A is connected to the fitting hole B of the case B.
1, it is necessary to make the shape of the fitting hole B1 larger than the attached part A1, and as a result, a gap is created between the fitting hole B1 and the attached part A1, and the insulator A and the case B There will be a gap between the two.

An object of the present invention is to improve the problems of the prior art as described above and to provide an insulator mounting structure that allows the insulator to be mounted to the case without play between the insulator and the case.

[Means to solve the problem]

In order to achieve the above object, the present invention attaches an insulator having a fixed terminal to the bottom of a case, inserts into the case a slider having a movable terminal that makes sliding contact with the fixed terminal, and connects the rear end of the case with the slider. In a switch mechanism, both sides are surrounded by a U-shaped holder, and the front end of the holder is caulked to a mounting bracket that abuts the front end of the case. An elastic mounting piece is formed by bending to open the front end, a stepped portion is formed on the bottom surface of the case facing the elastic mounting piece, and convex mounting portions are formed on both left and right sides of the insulator. and the distal end of the holder is caulked to the mounting bracket while the mounted part of the insulator is held between the bottom surface of the case and the elastic mounting piece and in contact with the stepped part. .

[Effect]

As mentioned above, in the insulator mounting structure of the present invention, since the part to be mounted of the insulator is sandwiched between the bottom surface of the case and the elastic mounting piece, there is no risk of rattling in the vertical direction, and moreover, the insulator Since the tip of the holder is caulked to the mounting bracket while the mounted part is in contact with the stepped part on the bottom of the case, the holder can be assembled without any play in the front-rear direction.

〔Example〕

An embodiment of the insulator mounting structure according to the present invention will be described below with reference to FIGS. 1 and 2.

In FIGS. 1 and 2, reference numeral 1 denotes an insulator. This insulator 1 has a plate-like shape, has two fixed terminals 10 implanted therein, and has convex mounting portions 11 on both the left and right sides of the front and rear ends. are provided, respectively, and a convex portion 12 is provided on the rear end surface. 2 is a case of a switch mechanism. This case 2 is provided with elastic mounting pieces 20 on both the left and right sides of the front and rear ends of the bottom surface. That is, this elastic mounting piece 20
is made to hang slightly downward from the bottom surface of the case 2 and is bent forward to open the front end, and a small protrusion 21 is formed on the upper surface of the front end. In addition, a stepped portion 22 is provided at approximately the center of the bottom of the case 2 facing the elastic mounting piece 20, and a through hole (not shown in the figure) into which the convex portion 12 of the insulator 1 is fitted is provided at the lower part of the rear wall of the case 2. ) will be established. The mounted portion 11 of the insulator 1 thus formed is slid from the front to the rear between the bottom surface of the case 2 and the elastic mounting piece 20.
At the same time, the attached part 11 of the insulator 1 is brought into contact with the stepped part 22 of the case 2, and the convex part 12 of the insulator 1 is fitted into the through hole of the case 2. At this time, the elastic attachment piece 20 presses the attached part 11 against the bottom surface of the case 2 by its elastic force.

Reference numeral 3 denotes a slider slidably mounted on the case 2 and the insulator 1, and this slider 3 is provided with a heart cam 30 that gives the slider 3 a two-stage operating function, and is also provided with a movable terminal (not shown). Reference numeral 5 denotes a guide pin bent into a U-shape. The fixed end 50 of the guide pin 5 is rotatably inserted into the hole 23 of the case 2, and the free end 51 of the guide pin 5 is inserted into the heart cam 30 of the slider 3. to engage. A spring 6 is interposed between the inner surface of the case 2 and the guide pin 5, and the free end 51 of the guide pin 5 is connected to the heart cam 30.
bias in the direction of engagement. Reference numeral 7 denotes a U-shaped holder, which is fitted onto the case 2 so as to surround the rear end and both sides of the case 2. 8 is a mounting bracket, and by inserting the tip of the holder 7 into the mounting hole 80 of the mounting bracket 8 and caulking it, the case 2, slider 4, insulator 1, guide pin 5, spring 6, holder 7, The mounting bracket 8 is assembled. 4 is slider 3
This is the knob attached to the. A compression spring 9 is interposed between the knob 4 and the mounting bracket 8, and is a spring for returning the knob 4 to its original position.

In such a switch mechanism, when the knob 4 is pressed, the slider 3 slides;
The movable terminal contacts either of the two terminals 10 of the insulator 1 to switch conduction. At this time, the attached part 1 of the insulator 1
Since the insulator 1 is elastically held between the bottom surface of the case 2 and the elastic mounting piece 20 and pressed against the bottom surface of the case 2, there is no possibility that vertical play will occur between the insulator 1 and the case 2.
Moreover, the mounted part 11 of the insulator is connected to the stepped part 2.
2, the tip of the holder 7 is caulked to the mounting bracket 8, so there is no risk of looseness in the front-back direction either.

[Effect of idea]

As described above, according to the insulator mounting structure of the present invention, the insulator and the case can be
It has the effect of being able to be assembled without any play in both the vertical and longitudinal directions.

[Brief explanation of the drawing]

1 and 2 show an embodiment of an insulator mounting structure according to the present invention, with FIG. 1 being a sectional view showing an assembled state, and FIG. 2 being an exploded perspective view.
FIG. 3 is a side view showing an insulator mounting structure of a conventional switch mechanism. 1...Insulator, 11...Mounted part, 2
... Case, 20 ... Elastic mounting piece, 7 ... Holder, 8 ... Mounting bracket.

Claims (1)

[Scope of utility model registration request] An insulator having a fixed terminal is attached to the bottom of the case, a slider having a movable terminal that makes sliding contact with the fixed terminal is inserted into the case, and the rear end and both sides of the case are surrounded by a U-shaped holder, In a switch mechanism in which the front end of the holder is caulked to a mounting bracket that is in contact with the front end of the case, elastic mounting pieces that hang downward on both left and right sides of the bottom of the case and are bent forward to open the front end are used. and a stepped portion is formed on the bottom surface of the case facing the elastic mounting piece, and convex mounting portions are formed on both left and right sides of the insulator, and the mounting portions of the insulator are formed on the bottom surface of the case. An insulator mounting structure for a switch mechanism, characterized in that the tip of the holder is held between the holder and the elastic mounting piece, and the tip of the holder is caulked to the mounting bracket while the holder is in contact with the step.