JPH09282975A - Slide switch - Google Patents

Abstract

(57) [Abstract] [Purpose] A slider of a slide switch has a coil spring provided in an open hole, and a click protrusion and a movable contact piece are arranged in series on both sides of the coil spring to assemble them. The coil spring is used both for clicking and for elastically contacting the movable contact with the fixed contact. It has a moderating switching feel and is a planar small slide switch that does not cause "sagging" in the spring, with good workability and low cost. It is in providing. [Structure] In constructing a slide switch having a slider with a movable contact piece and a click protrusion, a knob 3a can be moved from the elongated hole 2a to the outside in the recess 2 of the frame-shaped insulating base 1. A hole 4 which is substantially orthogonal to the slide direction is formed in the slider 3 arranged in the above position, and a click spring 6 and a movable contact piece 7 which are arranged in series in a protruding tendency sandwiching a coil spring 5 inserted in the hole 4 are respectively provided. The slider 3 is disposed in the recess 2 by elastically contacting a click recess 8 provided on the inner surface of the recess 2 and a plurality of fixed contact pieces 9 arranged to face the recess. The lid plate 10 was put on the opening edge of the recess 2 with the fixed contact piece 9 interposed therebetween.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slide switch suitable for use as a switch for blinking or switching an interior light or the like.

[0002]

2. Description of the Related Art Conventionally, as a slide switch of this type, for example, Japanese Unexamined Utility Model Publication No. 3-8833 previously proposed by the present applicant has been proposed.
There is one described in Japanese Patent Publication. This prior art relates to a slide switch having a movable contact piece provided on a sliding body, an insulating base formed in a substantially U-shaped cross section, a long hole connected to a recess of the insulating base, and an external through the long hole. An insulating sliding member provided with a knob protruding to be movable in the recess of the insulating base; a locking hole (recess) communicating with a pair of holes cut out below the sliding member; A movable contact piece having a substantially U-shaped cross section having a locking portion inserted and locked through the locking hole (recess) through the hole, and a bullet interposed between the upper surface of the movable contact piece and the sliding body. A slide switch including a repelling spring and an insulating plate for disposing a plurality of fixed contact pieces slidably in contact with the movable contact piece under the insulating base.

[0003]

However, in the conventional slide switch described in JP-B-57-10032 and JP-B-55-55469, such as the conventional example, the movable contact piece is a fixed contact piece. The spring for sliding elastic contact and the click action of the switch operation, that is, the click spring for imparting a switching moderation to the fingers, require two coil springs and leaf spring contact pieces, one for each. Therefore, in terms of parts management and assemblability, there is a problem that it is significantly disadvantageous to a single spring that does not have a switching moderation and leads to cost increase.

Further, apart from the above, Japanese Utility Model Application Laid-Open No. 63-137
No. 421, that is, a single leaf spring in which two pairs of opposite long and short ends of four end portions of a flat E-shaped leaf spring material are used for a click and a movable contact piece for each pair. Although there are slide switches with clicks made of material, this switch has the disadvantage that the elastic fatigue inherent to the leaf spring, that is, “spotting”, deteriorates the leaf spring elasticity and easily leads to poor contact and moderation. However, there is a problem that miniaturization of the switch is hindered.

[0005] The present invention has been made to solve all of the above-mentioned problems.
The slider of the slide switch is sandwiched by the coil springs provided in the open holes, and the click protrusion and the movable contact piece are arranged in series on both sides of the coil spring to assemble them, and only one coil spring is clickable and movable. Another object of the present invention is to provide a planar small slide switch having good workability at low cost, which also serves as elastic contact of the contact piece with respect to the fixed contact piece, has a switching moderation, and does not cause so-called "sagging" in the spring.

[0006]

The object of the present invention described above is, in constructing a slide switch having a slider with a movable contact piece and a click protrusion, has a long hole in a recess of a frame-shaped insulating base. A slider with a squeezing knob that can move toward the outside is formed with a hole that is substantially orthogonal to the sliding direction, and a coil spring inserted in this hole is sandwiched between the click protrusion and the movable contact piece arranged in series in a protruding tendency. The slider is disposed in the recess by elastically contacting a click recess provided on the inner surface of the recess and a plurality of fixed contact pieces arranged facing the recess, respectively, and This can be achieved by covering the opening edge of the place with the fixed contact piece and covering the lid plate.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, as shown in FIGS. 1 and 2, the basic mode of the present invention is to form a slide switch having a slider with a movable contact piece and a click protrusion so that a plastic is squared. In the recess 2 of the insulating base body 1 formed by molding in the shape of a frame, the knob 3a is directed outward from the elongated hole 2a.
As shown in FIGS. 1 and 3, a relatively small hole 4 which is substantially orthogonal to the sliding direction is formed in the vertical direction in the slider 3 to be movably arranged.

A coil spring 5 inserted as shown in FIG. 2 through the state shown in FIG. 1 is inserted into the hole 4, and a click protrusion 6 made of a steel ball or the like and a metal piece are folded in a U shape on both sides of the coil spring 5. The curved movable contact piece 7 and the curved movable contact piece 7 are arranged so as to have a protruding tendency as shown in FIG.

Next, the protrusion 6 and the movable contact piece 7 are attached to the inner surface of the recess 2 beside the elongated hole 2a in FIG.
As shown in FIGS. 2 and 3, the slider 3 is elastically contacted with the click concave portion 8 provided as shown in FIG. 3 and the fixed contact piece 9 composed of a plurality of small-width conductive plates arranged to face the concave portion 8, respectively. It is movably arranged in the recess 2 as shown in FIG.
The fixed contact piece 9 is sandwiched at the opening edge of the recess 2 and the plastic lid plate 10 is covered with the locking hook piece 10a or the like through the base body locking hole 1a as shown in FIG. The basic form of can be configured.

In order to automatically assemble this slide switch, one end of the hole 4 of the slider 3 is narrowed and tapered as shown in FIG. As shown in FIG.
A locking hole 7a is formed in the movable contact piece 7 as shown in FIG.
As shown in FIG. 3, this locking hole 7a is inserted into the hook of the tip of a locking elastic piece 4a provided outside the hole 4 of the slider 3 against the elastic force of the coil spring 5 as shown in FIG. By doing so, it is possible to promote automation of slide switch assembly.

The click protrusion 6 and the movable contact piece 7 always tend to project due to the elastic force of the coil spring 5, and the contact piece can be pushed to the outer surface of the slider 3 against the elastic force of the coil spring 5. The dimensions and the like of the locking hole 7a are set in advance.

Since the slide switch according to the present invention has the above-mentioned structure, the slide switch shown in FIG.
At the slider position, the movable contact piece 7 straddles the two adjacent fixed contact pieces 9, 9 by the elastic force of the coil spring 5, and the two fixed contact pieces 9, 9 are electrically connected. Therefore, the click protrusion 6 has fallen into the click recess 8 of the base recess 2 by the elastic force of the coil spring 5, so that the slider 3 can be maintained in the above-mentioned conducting state in a stable manner without moving unintentionally.

Next, the slider 3 is moved along the elongated hole 2a with the fingers or the like as shown in FIG. 5 through the state of FIG. 4, and this time, another two adjacent fixed contact pieces 9 different from the above are provided. , 9, the movable contact piece 7 straddles and elastically contacts, and the two fixed contact pieces 9, 9 in FIG. 5 different from FIG.
The click protrusion 6 snaps into the click recess 8 shown in FIG. 5 of the base recess 2 shown in FIG. 5 by the elastic force of the coil spring 5 to give a switching moderation, that is, a click action to fingers and the like. , After this depression,
The slider 3 can stably maintain the conduction state according to FIG. 5 without moving indefinitely.

[0014]

EXAMPLE As an example of mounting the movable contact piece 7 on the slider 3 by retaining it, as shown in FIG. 6, in addition to the previous example, the locking step edge 7A of the movable contact piece 7 is projected in the hole 4 of the slider 3. The locking projection 4A may be mounted by engaging and locking the snap with the elasticity unique to the contact piece.

In addition to the steel ball, the click protrusion 6 may be a sphere, a hemisphere or a bowl, and the fixed contact piece 9 has a positioning groove 9a provided on the inner surface of the recess 2. Instead of aligning with, the well-known fixing means such as screwing or adhesion may be used for aligning and fixing.
0 can be put on the opening edge of the base recess 1a by a known means such as screwing, instead of the above-mentioned mounting and mounting by engaging the edge of the base locking hole 1a with the locking hook piece 10a. .

[0016]

As described above, the present invention has the following advantages. In the recess 2 of the frame-shaped insulating base body 1, a slider 3 is provided which is movably arranged so that a knob 3a extends outward from the elongated hole 2a, and a hole 4 substantially orthogonal to the sliding direction is formed in the slider 3. A click protrusion 6 and a movable contact piece 7 arranged in series so as to protrude with a coil spring 5 inserted between them, and a plurality of click recesses 8 provided on the inner surface of the recess 2 and a plurality of click recesses facing each other. Since the slider 3 is disposed in the recess 2 by elastically contacting with the fixed contact piece 9, only one coil spring is used, and the fixed contact of the coil spring and the movable contact piece is fixed. It has an industrial effect that it can be used for elastic contact with one piece, has a switching moderation, and has a planar small slide switch that does not cause "spring" on the spring with good workability and at low cost. .

According to the second and third aspects, since the click protrusion 6 and the movable contact piece 7 do not inadvertently escape from the slider 3, the mounting of the slider 3 in the base recess 2 can be surely facilitated.
The effect that the assembling workability of the slide switch can be improved and the automatic assembling thereof can be promoted can be added.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a slide switch according to the present invention before assembly.

FIG. 2 is a transverse elevation view of the slide switch according to the present invention after assembly.

FIG. 3 is an enlarged cutaway side view of an essential part after assembly of the slide switch according to the present invention.

FIG. 4 is a cut side view showing a state different from that of FIG.

FIG. 5 is a cutaway side view in a state different from that of FIG.

FIG. 6 is a cut side view showing another example of the one shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Insulating substrate 2 Recess 2a Long hole 3 Slider 3a Knob 4 Hole 5 Coil spring 6 Click protrusion 7 Movable contact piece 8 Recess for click 9 Fixed contact piece 10 Cover plate

Claims (3)

[Claims] 1. In a slide switch having a slider with a movable contact piece and a click protrusion, a knob 3a is movably arranged in a recess 2 of a frame-shaped insulating base 1 from its elongated hole 2a. A hole 4 which is substantially orthogonal to the sliding direction is formed in the slider 3 provided, and a coil spring 5 inserted in the hole 4 is sandwiched between a click protrusion 6 and a movable contact piece 7 which are arranged in series so as to project. The slider 3 is disposed in the recess 2 by elastically contacting with the click recess 8 provided on the inner surface of the recess 2 and a plurality of fixed contact pieces 9 arranged facing the recess, respectively. A slide switch in which a cover plate 10 is placed on the opening edge of the recess 2 with the fixed contact piece 9 interposed therebetween. 2. The slide switch according to claim 1, wherein the end of the click projection is prevented by tapering one end of the hole of the slider. 3. The slide switch according to claim 1, wherein the movable contact piece is prevented from falling off by mounting the movable contact piece on the slider.