JP2548266Y2 - switch - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switch for simultaneously operating a plurality of contact points with a single push button.

[0002]

2. Description of the Related Art FIG. 4 is an exploded perspective view of a conventional example, and FIG. 5 is a sectional view thereof. An insulating partition 2 is integrally formed at the center of the body 1 having an open upper surface.
The contact portions are arranged on both sides. In the illustrated example, the case of two poles is shown. A substantially L-shaped fixed terminal plate 4 having a fixed contact 3 is embedded at both ends on both sides of the insulating partition 2.

An operation section 6 is provided on an upper portion of the push button 5, and a slit 7 for inserting the insulating partition 2 is formed on a lower portion. Further, both sides of the lower part of the push button 5 are formed in a U-shape, and a projection 8 is integrally provided on the upper surface thereof.
A movable contact plate 10 having movable contacts 13 on the lower surfaces at both ends is inserted through insertion holes 9. A spring 11 for urging the movable contact plate 10 is provided.
As shown in FIG. 5, 1 is inserted between the lower surface of the upper piece 12 of the push button 5 and the upper surface of the movable contact plate 10.

Although not shown in FIGS. 4 and 5, a return spring is inserted between the push button 5 and the body 1, and
The push button 5 is constantly urged upward to maintain the contacts 3 and 13 in the open state. A cover 14 is provided on the upper surface of the body 1.
And the operation unit 6 of the push button 5 protrudes from the cover 14. Now, the state of FIG. 5 shows an open state, and the two contacts 3 and 13 are closed by pressing the push button 5 downward against the return spring. Here, the movable contact plate 10 is urged by the spring 11 to obtain appropriate contact pressures on the two contacts 3 and 13.

[0005]

In such a conventional example, there are the following problems during assembly. That is, when the movable contact plate 10 and the spring 11 are attached to the push button 5, after the movable contact plate 10 is
The spring 11 must be compressed and held between the upper piece 12 and the projection 8, and the spring 11 must be inserted and arranged in the projection 8 or the like. there were.

Further, as shown in FIGS. 5 and 6, since the insulating partition 2 is inserted into the slit 7 of the push button 5, the width for insulation is limited to that of the vertical pieces 15 of the insulating partition 2 and the push button 5. There is a problem that the size becomes the thickness, and the miniaturization is restricted in the width direction. The present invention has been made in view of the above points, and has as its object to provide a switch for assembling parts from one direction to facilitate assembly and to reduce the size in the width direction. It is.

[0007]

According to the present invention, there is provided a separator for insulating both contact portions, a movable contact plate provided on both sides of the separator from above and having a movable contact opposed to a fixed contact, and a movable contact plate. It comprises a spring which is arranged on the upper surface of the contact plate and urges it, and a push button which urges the spring from the upper surface and is engageable from above with the upper part of the separator on the lower surface side.

The insulating wall of the contact portion is formed only by the thickness of the separator.

[0009]

The movable contact plates are arranged on both sides of the separator from above, respectively, a spring is arranged from above, and the spring is urged by a push button from the upper surface of the spring, and the movable contact plate is engaged with the upper portion of the separator. Thus, parts can be assembled from one direction to facilitate assembly.

[0010] Further, since the insulation of both contact portions is made only by the separator, the thickness of the insulating wall is defined as the thickness of the separator.
The width is reduced.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view of the whole, and in this embodiment, 2
The case of a pole is shown. The fixed terminal plate 4 and the return spring 16 are disposed in the body 1 as in the conventional case. The push button block which is the gist of the present invention includes a push button 21 and a separator 2.
6 is divided into two parts. An operation part 22 is provided on the upper surface of the push button 21, two ribs 23 are formed on the lower surface, and a groove 24 is formed between the ribs 23.

The separator 26 is formed in the shape of a flat plate. Projections 27 are integrally formed on both side surfaces, and projections 28 for disposing the movable contact plate 10 and the spring 11 are provided on the upper surface of the projection 27. It is protruding. Further, a projection 29 for positioning the return spring 16 is provided on the lower surface of the projection 27. Further, engaging protrusions 30 are formed on both sides of the upper portion of the separator 26 so as to engage with recesses formed on the inner surface of the rib 23 when inserted into the groove 24 of the push button 21.

The body 1 has a locking projection 1 on the cover 14.
A locking hole 18 for engaging the switch 7 is formed, and an engagement piece 19 for mounting the switch on a panel or the like is formed. A hole 20 is formed in the upper surface of the cover 14 so that the operation portion 22 of the push button 21 protrudes. Thus, in the case of assembling, the movable contact plate 10 is arranged on the projection 28 of the separator 26 via the insertion hole 9, and the spring 11 is inserted into the projection 28 from above. Further, while urging the spring 11 on the lower surface of the push button 21, the groove 24 of the push button 21 and the separator 2 are pressed.
6. Engage the top of 6. Therefore, the push button block can be assembled only by assembling parts from above.

Further, as shown in FIG. 2, the insulation of the two contact portions can be performed only by the thickness of the insulating wall 31 of the separator 26, so that the width dimension can be reduced. FIG. 3 shows an embodiment of a three-pole type. As in the previous embodiment, the push button 21 and the separator 26 are divided to form two insulating walls 31, three projections 28 and the like. Since the function of each member is the same as that of the previous embodiment, the description is omitted.

[0015]

As described above, the present invention provides a separator that insulates both contact portions, a movable contact plate that is disposed on both sides of the separator from above and has a movable contact opposed to a fixed contact, Since the spring is arranged on the upper surface of the contact plate and urges the spring, and the spring is urged from the upper surface, the lower surface of the separator has a push button that can be engaged with the upper portion of the separator from above. A movable contact plate is placed on each side from above, a spring is placed from above, and a spring is urged with a push button from the top of the spring, and the upper part of the spring is engaged with the upper part of the separator to assemble parts from one direction. As a result, the assembly can be facilitated. In this way, since the parts can be inserted from one direction, the automatic assembly by the machine can be easily performed. In which an effect that it is possible to stably supply and cost reduction of the product.

Further, since the insulation of both contact portions is made only by the separator, the thickness of the insulating wall is defined as the thickness of the separator.
The width can be reduced, and thus the whole can be reduced in size.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of an embodiment of the present invention.

FIG. 2 is an explanatory diagram.

FIG. 3 is an exploded perspective view of another embodiment.

FIG. 4 is an exploded perspective view of a conventional example.

FIG. 5 is a sectional view.

FIG. 6 is an enlarged sectional view of a main part.

[Explanation of symbols]

 Reference Signs List 3 fixed contact 10 movable contact plate 11 spring 13 movable contact 21 push button 26 separator

Claims (2)

(57) [Scope of request for utility model registration] 1. A separator that insulates both contact portions, a movable contact plate disposed on both sides of the separator from above and having a movable contact facing a fixed contact, and a movable contact plate disposed on an upper surface of the movable contact plate. A switch comprising: a spring to be urged; and a push button which urges the spring from an upper surface and is engageable from above and above a separator on a lower surface side. 2. The switch according to claim 1, wherein the insulating wall of the contact portion is formed only by the thickness of the separator.