JP2000195372A - Slide switch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure a simplified structure for improvement of workability and cost reduction and also ensure sense of moderation in switching by providing a slider, in which a click projection and a movable contact piece are accommodated with a coil spring interposed therebetween and slipping-off prevention is applied with respect to each hole. SOLUTION: A relatively small hole 4 which is substantially orthogonal to the slide direction is formed preliminarily in a slider 3. A click piece 6 made of steel ball and a movable contact piece 7 made of metal piece U-shaped are provided to sandwitch a coil spring 5 being inserted into the hole 4, so that they tend to project. The slider 3 is disposed movably in a recess 2 with the movable contact piece 7 made elastically contact with a fixed contact piece 9 in the recess 2. A projected piece 10A is provided on a cover plate 10 to cover an opening edge of the recess 2, and a click recess 8 is elastically contacted with the click piece 6. The opening edge is covered with the plate 10 through an engaging hole 1a by the aid of an engaging piece 10a.

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.
There is one described in Japanese Patent Publication No. 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 therein so as 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 that is inserted and locked in the locking hole (recess) through the hole, and interposed between the upper surface of the movable contact piece and the sliding body. A slide switch including an elastic spring and an insulating plate for arranging a plurality of fixed contact pieces slidably in contact with the movable contact piece under the insulating base.

[0003]

However, the conventional slide switch described in Japanese Utility Model Publication No. 57-10032 or Japanese Utility Model Publication No. 55-55469, in addition to this conventional example, uses a movable contact as a fixed contact. A spring for sliding and elastic contact and a click action for switch operation, that is, a click spring for imparting switching sensation to the finger, require two separate coil springs or leaf spring contact pieces, one each. Therefore, in terms of parts management and assemblability, there is a disadvantage that it is significantly disadvantageous as compared with a single spring having no sense of switching moderation, leading to an increase in cost.

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-shaped leaf spring material are used for a click and a movable contact piece for each pair. There is also a slide switch with a click made of a material, but this one has the disadvantage that the leaf spring inherent in "leafing" deteriorates the leaf spring elasticity and easily leads to poor contact and moderation. Therefore, there is a problem that miniaturization of the switch is hindered.

An object of the present invention is to solve the above-mentioned problems. It is an object of the present invention to interpose a coil spring provided in a hole formed in a slider of a slide switch, and to have click projections on both sides thereof. And the movable contact piece are arranged in series and assembled so that one coil spring can be used both for clicking and for elastically contacting the movable contact piece with the fixed contact piece. Therefore, the structure is simple and workability is improved. It is an object of the present invention to provide a slide switch which can improve the cost, reduce the cost, and provide a sense of moderation.

[0006]

SUMMARY OF THE INVENTION A slide switch according to the present invention achieves the above-mentioned object. The slide switch includes a knob, a hole formed in a direction perpendicular to a direction in which the knob protrudes, and a hole in the hole. The click spring and the movable contact piece are housed in a state where the coil spring is housed,
And a slider in which each of the holes is provided with a stopper, and a recess in which the slider is slidably formed, and an insulating base in which a long hole from which the knob is projected is formed, A fixed contact piece made of a small-width conductive plate elastically abutting on the movable contact piece accommodated along the inner wall surface in the recess in a state of being disposed along the insulating base and being bent at a right angle; By closing the opening of the recess, and by closing the opening, the click projection slides on the projection accommodated along the inner wall surface of the recess along the opposite side to the fixed contact piece. Click recess is formed, and
A portion parallel to the insulating base of the fixing piece is fixed,
Thus, the slider allows the movable contact piece to move on the fixed contact piece while obtaining a click feeling.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, in a basic embodiment of the present invention, as shown in FIGS. 1 and 2, a slider is provided with a movable contact piece and a click projection on a slider. In the recess 2 of the insulating base 1 formed by molding into a frame shape, the knob 3a is directed outward from the long hole 2a in FIG.
First, a relatively small hole 4 which is substantially perpendicular to the sliding direction is formed in the slider 3 to be movably disposed as shown in FIGS. A click spring 6 made of a steel ball or the like and a metal piece are bent on both sides of the coil spring 5 inserted in the hole 4 as shown in FIG. The movable contact pieces 7 are arranged so as to protrude as shown in FIG.

Next, of the projection 6 and the movable contact 7, the movable contact 7 is elastically brought into contact with a fixed contact 9 made of a plurality of narrow conductive plates provided in the recess 2, and the slider 3 is moved. As shown in FIGS. 2 and 3, the plastic lid plate 1 is movably disposed in the recess 2 and covers the opening edge of the recess 2.
1 and a click recess 8 is resiliently contacted with the click projection 6 so that the cover plate 10 is attached to the opening edge by a hook 10a or the like as shown in FIG. The basic configuration of the slide switch according to the present invention can be configured by covering the slide switch via the locking hole 1a as described above.

In order to automatically assemble the slide switch, one end of the hole 4 of the slider 3 is narrowed down to a point smaller than that of the projection 6 as shown in FIG. 3, and the projection 6 partially projects. 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, the engaging hole 7a is engaged with the tip hook portion of the engaging elastic piece 4a opposed to the outside of the hole 4 of the slider 3 against the elasticity of the coil spring 5 as shown in FIG. By providing the stopper, automation of the assembly of the slide switch can be promoted.

[0010] The click projection 6 and the movable contact piece 7 always tend to protrude due to the elastic force of the coil spring 5, and are engaged so as to be pushed into the outer surface of the slider 3 against the elastic force of the coil spring 5. The dimensions and the like of the hole 7a are set in advance.

The slide switch according to the present invention has the above-described configuration.
In the slider position (2), the movable contact piece 7 straddles the adjacent two fixed contact pieces 9 and 9 by the elastic force of the coil spring 5, and the two fixed contact pieces 9 and 9 are electrically connected. The click projection 6 is dropped into the click recess 8 provided on the projection 10A of the cover plate 10 by the resilient force of the coil spring 5, and the slider 3 does not move unnecessarily, and the conductive state is stabilized. Can be maintained.

Next, when the slider 3 is moved along the elongated hole 2a by a finger or the like as shown in FIG. 5 through the state shown in FIG. 4, then the other two fixed contact pieces 9 different from the above are provided. The movable contact piece 7 straddles and contacts the fixed contact pieces 9 and 9 in FIG. 5, which is different from FIG. 3, and the click protrusion 6 is different from the cover plate protrusion 10A in FIG. 5 by the resilience of the coil spring 5 in the click recess 8 shown in FIG. 5, a switching moderation, that is, a click action can be imparted to a finger or the like. Can maintain a stable conduction state.

In the embodiment described above, the locking hole 7a of the movable contact piece 7 is engaged with the tip hook of the locking bullet 4a, but as shown in FIG. A locking projection 4A in which the locking step edge 7A of the movable contact piece 7 protrudes from the hole 4 of the slider 3.
May be mounted by being engaged and locked by the elasticity inherent to the contact piece.

The click projection 6 may be a simple sphere, hemisphere or bowl-shaped projection other than a steel ball, and the fixing contact piece 9 is provided on the inner surface of the recess 2. Instead of being aligned with the positioning groove 9a, the locking plate 10 may be aligned and fixed by well-known fixing means such as screwing or bonding. Instead of the mounting and mounting as described above, the opening edge of the base recess 1a can be covered by known means such as screwing.

[0015]

As described above, according to the present invention, the slider having the click projection and the movable contact piece housed therein with the coil spring interposed therebetween, and having the knobs for which the holes are respectively prevented from coming off. A recess in which the slider is slidably housed, and an insulating base formed with an elongated hole from which the knob projects, and disposed along the insulating base and bent at a right angle The fixed contact piece elastically abutting on the movable contact piece accommodated in the recess along the inner wall surface in the recessed state, an opening of the recess is closed, and the opening is closed by closing the opening. A click recess in which the click protrusion slides is formed in a protrusion accommodated along an inner wall surface on the opposite side of the fixed contact piece at a place, and is parallel to the insulating base of the fixed contact piece. Parts are fixed, so that the slider Since the movable contact piece is configured to move on the fixed contact piece while obtaining a licking feeling, using only one coil spring, this coil spring can be used for clicking and for elastic contact of the movable contact piece with the fixed contact piece. The present invention has an effect that a small slide switch which is flat and small and does not cause "splash" in the spring can be provided with good workability and at low cost.

[Brief description of the drawings]

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

FIG. 2 is a cross-sectional elevation view after assembling the slide switch according to the present invention.

FIG. 3 is an enlarged sectional plan view of a main part after assembling the slide switch according to the present invention.

FIG. 4 is a cut-away plan view in a state different from FIG. 3;

FIG. 5 is a cut-away plan view in a state different from FIG. 4;

FIG. 6 is a cut plan view showing another example of the one shown in FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Insulating base 2 Depression 2a Slot 3 Slider 3a Knob 4 Hole 5 Coil spring 6 Click projection 7 Movable contact 8 Depression for click 9 Fixed contact 10 Cover plate 10A Cover plate projection

Claims (1)

[Claims] 1. A knob 3a, a hole 4 drilled in a direction perpendicular to the direction in which the knob 3a protrudes, a coil spring 5 housed in the hole 4, and a click projection 6 with the coil spring 5 interposed therebetween. And a movable contact piece 7 are accommodated therein, and a recess 3 is formed in which the slider 3 is slidably accommodated and the slider 3 is slidably accommodated in the hole 4. An insulating base 1 having an elongated hole 2a from which a projection 3a is formed; and an insulating base 1 arranged along the insulating base 1 and housed along the inner wall surface in the recess 2 in a state of being bent at a right angle. A fixed contact piece 9 made of a small-width conductive plate elastically in contact with the movable contact piece 7, and an opening of the recess 2, and the fixed contact of the recess 2 by closing the opening. 9 on the protruding piece 10A housed along the inner wall surface on the side opposite to A click recess 8 is formed in which the slider 6 is slidably contacted, and a portion of the fixed contact piece 9 parallel to the insulating base 1 is fixed. And a cover plate (10) in which the piece (7) can move on the fixed contact piece (9).