JPS643135Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a switch mounting device, and is intended to easily and reliably mount a switch body to a mounting board.

(b) Prior art Taking note of the fact that the base portion of the switch body is conventionally made of synthetic resin, a locking rib that locks onto the mounting board side has been integrally formed on the base portion. There are some devices in which the switch body is attached to the mounting board using such a locking rib. For example, as shown in FIG. 1, a pair of switch contacts 1,
A pair of locking ribs 4, 4' extending downward are integrally formed on the base part 2 of a switch body 3 , commonly called a leaf switch, which is composed of a base part 2 made of synthetic resin and a base part 2 made of synthetic resin that holds it. When the switch main body 3 is placed on the upper surface side of the mounting board 5, each of the locking ribs 4, 4' is bent and fitted into the mounting hole 6 of the mounting board 5, and the tip hook portion 4a, By locking 4a' to the lower surface of the mounting board 5, the switch body 3 can be mounted to the mounting board 5.

However, with such conventional devices, when inserting the locking ribs of the switch body into the mounting holes of the mounting board, the center position between the locking ribs and the center position of the mounting hole must be aligned to some extent. , the amount of deflection of one of the locking ribs becomes too large,
There was a risk that a crack or the like would enter the base. Therefore, a certain degree of care is required in such fitting work, which is not desirable in terms of work efficiency and also becomes an obstacle when automatic assembly by a robot or the like is carried out.

When the switch body is attached to the mounting board using only the locking ribs as in the prior art described above, the locking ribs themselves are thin because they are formed to be flexible. As a result, there is a problem in that the dimensional accuracy of the tip has large variations, and when the locking rib is inserted into the mounting hole, the positioning effect becomes unstable with only the locking rib.

(c) Purpose of the invention The present invention was created in view of the above points, and is intended to improve work efficiency and promote automation by making it easier and more reliable to attach the switch body to the mounting board. It is.

(D) Example The present invention will be described below with reference to FIGS. 3 and 4, which are examples of the present invention.
This will be explained with figures.

Incidentally, parts that are the same as those in the prior art are given the same reference numerals and their explanations will be omitted.

The present invention is characterized by forming a pair of locking ribs 4, 4' on the base portion 2 as described above, and positioning side surfaces 7a, 7a' in the bending direction of the locking ribs 4, 4'. A pair of guide ribs 7, 7' having
is formed longer than each of the locking ribs 4, 4'.

and a guide hole 6a into which the positioning side surfaces 7a, 7a' of the guide ribs 7, 7' are inserted in sliding contact;
6b is formed on the mounting substrate 5.

Therefore, when the switch body 3 is attached to the mounting board 5, the guide ribs 7, 7' are connected to the locking ribs 4, 7'.
The positioning side surfaces 7a, 7a' are inserted into the inner surfaces of the guide holes 6a, 6b in sliding contact with the inner surfaces of the guide holes 6a, 6b before the locking ribs 4, 4' are inserted into the mounting holes 6 in this positioned state. It can be bent and inserted.

This allows the locking ribs 4, 4' to fit into the mounting hole 6.
At the time of fitting, the center position of the locking ribs 4, 4' and the center position of the mounting hole 6 can be reliably aligned with the guide ribs 7, 7, making the fitting work easy and smooth. I can make you do it.

The tips of the guide ribs 7, 7' are rounded to allow smooth sliding insertion into the guide holes 6a, 6b.

(E) Effect As described above, the present invention is designed so that the positioning side of the guide rib is inserted into the guide hole while slidingly contacting it, and the locking rib is bent and fitted into the mounting hole in this positioned state. Because it is composed of
The mounting accuracy of the switch body to the mounting board can be improved, and the instability of the positioning action caused by variations in the dimensional accuracy of the elastically deformable locking ribs can be eliminated.

As described above, according to the present invention, it is possible to easily, reliably, and efficiently attach the switch body to the mounting board, and it is also useful for promoting automatic assembly by a robot or the like.

[Brief explanation of the drawing]

Figures 1 and 2 show a conventional example, Figure 1 is a perspective view showing the installation process, Figures 2a and b are a plan view and A-A' sectional view of the installation state, Figure 3 and Fig. 4 shows an embodiment of the present invention, Fig. 3 is a perspective view showing the installation process, Fig. 4 a, b, and c are plan views of the installation state, B-B' and C-C' FIG. 3 ... Switch body, 4, 4'... Locking rib,
5...Mounting board, 6...Mounting hole, 6a, 6b...
Guide hole, 7, 7'... Guide rib, 7a, 7a'...
...Positioning aspect.

Claims (1)

[Claims for Utility Model Registration] A locking rib extending downward is formed on the synthetic resin base of the switch body, and when the switch body is placed on the top surface of the mounting board, the locking rib is attached to the base of the mounting board. The switch body is attached to the mounting board by fitting the switch body into the mounting hole while bending and locking the distal end hook part to the lower surface side of the mounting board, the device having the hook attached to the base part. forming a guide rib having a positioning side surface in the bending direction of the locking rib longer than the locking rib; forming a guide hole in the mounting board into which the positioning side surface of the guide rib is inserted in sliding contact; 1. A switch mounting device characterized in that when a switch main body is mounted, the positioning side surface of the guide rib is inserted into the guide hole in sliding contact while the locking rib is bent and fitted into the mounting hole.