JPH05342951A - Slide switch - Google Patents

Abstract

PURPOSE:To eliminate need of a coil spring, etc., by composing a switch in such a way that fixed conductors are shortcircuitted to be continuous to each other by an intermediate protruding surface of a conductive member covering a trough between the fixed conductors. CONSTITUTION:A knob 4 is exposed from a hole 3 in an upper plate 2 of an insulation base body 1 moulded having an almost U-shaped cross section, and an insulation slide body 5 is movably provided in a recessed place 1a in the insulation base body 1. An almost U-shaped conductive member 6 having a pair of folded resilient members 6a, 6a is disposed in a recessed plate 5a of the slide body 5, and plural fixed conductors 8, 8 adjacent to each other through an intermediate protruding surface 7 are fixed in parallel at a lower part of the insulation base body 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention uses a conductive piece having a pair of folding bullet pieces as a movable contact piece in a slide switch, and a plurality of so-called busbars having a small width as a fixed conductor slidingly contacting the conductive piece. The present invention relates to a slide switch having a self-cleaning action in which a conductive plate, a conductor pipe, or a conductor rod are directly arranged in parallel and a coil spring is unnecessary.

[0002]

2. Description of the Related Art As a general slide switch, there is a conventional one described in, for example, Japanese Patent Laid-Open No. 17228/1992.

In this conventional technique, in a slide switch provided with a movable conductor on a sliding body, a knob 4 is projected outside from a hole 3 of an upper plate 2 of an insulating base body 1 having a substantially U-shaped cross section, and the insulating base body 1 is formed. Insulating slide 5 in recess 1a
And a plurality of fixed conductors 8, which slidably contact the movable protrusion conductor 7 and which are arranged at the lower part of the sliding body 5 so as to project by the spring 6.
8 is a slide switch in which lower portions of the insulating base 1 are fixed in parallel with each other with a space left therebetween.

[0004]

In the prior art described above, it is necessary to dispose the movable conductor projecting by the coil spring under the sliding body. Therefore, the spring is easy to spring due to its elasticity, and the spring is easy to assemble when the slide switch is assembled. However, there is a problem in that the assembling property may be poor, and the automatic assembling is almost impossible.

According to the present invention, in order to eliminate the above-mentioned problems, a plurality of small-width conductive plates, so-called bus bars, are provided in parallel on the fixed conductor of the slide switch, so that the valleys of these fixed conductors are straddled. It is an object of the present invention to provide a switch that short-circuits and conducts between fixed conductors on an intermediate projecting surface of a conductive piece, and can automatically assemble without requiring a coil spring or the like.

[0006]

SUMMARY OF THE INVENTION The above-mentioned object of the present invention is to construct a slide switch having a movable contact piece on a sliding body from the hole of the upper plate of an insulating base having a substantially U-shaped cross section to the outside. An insulating sliding body is movably provided in the recess of the insulating base by exposing the knob, and a substantially U-shaped conductive bullet having a pair of folding bullets is arranged in the concave of the sliding body, and This can be achieved by fixing a plurality of fixed conductors, which are slidably contacting over the intermediate projecting surface, in parallel with each other in the lower portion of the insulating base with spaces left therebetween.

A plurality of fixed conductors may be fixed in parallel to the lower portion of the insulating base by embedded fixing portions such as grooves and holes.

[0008]

[Operation] In the switch state immediately after assembly, the intermediate projecting surface of the conductive piece falls between the two fixed conductors, and the two are short-circuited across the fixed conductors on both sides.

Next, in order to switch the switch, the knob is moved laterally from the central position, and first, the intermediate projecting surface of the conductive piece rides on the upper portion of the fixed conductor against the elastic force of the folding piece of the conductive piece. At this time, the folding piece over the conductive piece is slackened, and the conductive piece upright portion smoothly moves while sliding up and down without rubbing the upper surface of the concave portion of the sliding body.

When the apex of the intermediate projecting surface of the conductive piece crosses over the fixed conductor, the upright portions on both sides move downward in the recess by the elastic force of the folded back piece of the conductive piece, and the intermediate projecting surface on the left side has two sides. It is possible to switch between the fixed conductors by snapping and short-circuiting the fixed conductors across the fixed conductors.

Since the conductive piece that moves with the knob elastically snaps into the valley of the fixed conductor (small-width conductive plate or metal pipe), a click action, that is, a snap action can be given to the knob operation as a slide switch. You can operate the knob with a snap and a sharp crispness, and the controllability as a switch is improved.

Further, the intermediate projecting surface of the conductive piece is made to escape from the above-mentioned valley to turn off the switch, or the intermediate projecting surface is dropped by the elastic force of the conductive piece into the valley of another fixed conductor, whereby a single pole is formed. It serves as a double throw / double pole double throw selector switch.

[0013]

EXAMPLES Examples will be described with reference to the drawings. First, as shown in FIGS. 1 and 2, the basic structure of the present invention is as shown in FIGS. 2 and 4 in which a rectangular hole 3 is provided in the upper plate 2 of an insulating substrate 1 which is formed of plastic or the like and has a substantially U-shaped cross section. An insulative slide body 5 formed by molding a plastic or the like into the recess 1a of the insulating base 1 by projecting the knob 4 to the outside.
Is movably equipped.

Then, a substantially U-shaped conductive piece 6 having a pair of folded bullet pieces 6a, 6a formed on the upper portion thereof by a phosphor bronze plate or the like in the concave portion 5a of the sliding member 5 is elastically generated on the upright portions 6b, 6b on both sides thereof. Temporarily fixed and the intermediate projecting surface 7 of the conductive bullet piece 6
As shown in FIGS. 2 and 3, fixed conductors 8 made of a plurality of small-width conductive plates which are in sliding contact with each other and are fixed in parallel at a lower portion of the insulating base 1 at a predetermined interval.

Further, the plurality of fixed conductors 8 and 8 are insulated by an insulating substrate.
As a means to fix in parallel to the lower part of 1, it may be fixed in parallel with an embedded fixing part 9 such as a groove or hole or a pressing plate as shown in each figure, or other suitable fixing means such as screwing. it can.

Next, the procedure for assembling this slide switch will be described. First, among the parts shown in FIGS. 1 to 4, a substantially U-shaped conductive piece 6 having an open upper end is placed in a recess 5a of a hollow rectangular parallelepiped sliding member 5 formed by plastic molding as shown in FIG. Holes formed in the upper plate 2 of the recess 1a of the insulating base 1 by inserting the pieces 6a, 6a against the elastic force and temporarily fixing the inserted state by the elastic force generated in the upright portions 6b, 6b of the conductive piece 6. The knob 4 is inserted into 3 and the fixed conductor 8 is applied to the lower part of the insulating base 1 against the elastic force of the conductive bullet 6 as shown in FIGS.

After this application, the pressing plate 11 is attached to the insulating substrate 1 by screws 12, 12 so that the intermediate projecting surface 7 is slightly pushed in against the elastic force of the folded bullet pieces 6a, 6a of the conductive piece 6. Screw on as shown in 2.

That is, the sliding body 5 is first inserted into the recess 1a of the insulating substrate 1 as shown in FIGS. 2 and 4, and the knob 4 is projected from the hole 3 to the outside.

As shown in FIG. 1, FIG. 2 and FIG. 4, the fixed conductor 8 is engaged with the fixed fixing portion 9 such as a groove so that the pressing plate 10 is locked to the bottom surface of the insulating substrate 1 by not shown. The slide switch according to the present invention is completed by attaching it as shown in FIG. 2 using a bullet piece and a set screw 11. Fixed conductor 8
A conductive pipe as shown in FIG. 5 may be used as the conductive piece.
The pair of folding bullets 6a, 6a provided on the upper portion of 6 may be plastic bullets, respectively.
A and 6a may be V-turn-shaped folded bullet pieces as shown in FIG. 6, or may have upper upright pieces formed as shown in FIG. 7, and the conductive piece 6 itself may be solid.

Next, the operation of this slide switch will be described. The switch state immediately after assembly is two fixed conductors 8,
The intermediate projecting surface 7 of the conductive bullet piece 6 is depressed by the elastic force of the folded bullet pieces 6a, 6a as shown in FIG. 2 across the fixed conductors 6 on both sides to short-circuit the two.

Next, in order to switch the switches, the knob 4 is moved to the left from the center position in FIG.
The middle projecting surface 7 of the conductive piece 6 rides on the upper part of 8 against the elastic force of the folded-back bullet pieces 6a, 6a forming the pair of conductive pieces 6 as shown in FIG. While the upper flexible tongues 6a, 6a are slackened, the conductive piece upright portions 6b, 6b smoothly move while sliding up and down on the inner surface of the recess 5a of the sliding body 5.

When the apex of the intermediate projecting surface 7 of the conductive piece 6 crosses over the fixed conductor 8, the upright portions 6b, 6b on both sides thereof are recessed by the elastic force of the folded-back bullet pieces 6a, 6a of the conductive piece 6.
As shown by the alternate long and short dash line in FIG. 3, the intermediate projecting surface 7 snaps between the fixed conductors 8 and 8 on the left side, shorts the two across the fixed conductors 8 and 8, and switches the switches. Switchover can be performed.

Then, the intermediate projecting surface 7 of the conductive piece 6 which is moved by the knob 4 elastically snaps into the valleys of the fixed conductors 8 and 8 as shown in FIG. Since the snap action can be applied, the knob can be operated with a snap and snap, and the controllability as a switch is improved.

[0024]

Since the present invention is configured as described above, it has the following effects. When the knob 4 is moved, the folding pieces 6a, 6a of the conductive piece 6 are slackened, and the conductive piece upright portions 6b, 6b move up and down along the inner surface of the recess 5a of the sliding body 5 without difficulty, and the fixed conductor 8 Conductive piece 6 on top
When the apex of the intermediate projecting surface 7 of the above is overcome, this time the intermediate projecting surface 7 snaps down between the fixed conductors 8 and 8 on the left side by the elastic force of the folded bullet pieces 6a and 6a of the conductive piece 6, and the fixed conductors 8 and 8 are Since the two can be short-circuited across the bridge and the switch can be switched, firstly, if the folded back piece 6a does not rub against the upper surface of the recess 5a, it will not be worn for a long period of time, and secondly, the coil spring and the steel in the prior art described above. In the present invention, since one conductive piece 6 can be used as a movable conductor such as a ball, there are first and second effects that the number of parts is halved and the cost is reduced.

Further, since the coil spring and the steel ball which are easily scattered in the automatic assembly process are not used in the present invention, the conductive piece 6 temporarily arranged by the self-elasticity in the slide body recess 5a is used. There is also a third effect that full automation can be realized.

Since the conductive piece which is moved by the knob 4 elastically snaps into the valleys of the fixed conductors 8 and 8, a click action, that is, a snap action can be given to the knob operation as the slide switch, so There is also a fourth effect that it is possible to operate the knobs with a sharpness.

Further, the intermediate projecting surface of the conductive piece is allowed to escape from the above-mentioned valley to switch it off, or the intermediate projecting surface is dropped into another valley to drop the single-pole double-throw, double-pole double-throw and other multi-pole multi-poles. Since it functions as a throwing changeover switch, there is a fifth effect that a wide variety of slide switches can be automatically manufactured.

According to claim 2, the fixed conductor 8 is provided in the groove or hole.
Since it is tightly held by the pressing plate 10 and the like, the arrangement position of the plurality of fixed conductors 8 can be fixed firmly without screwing, and the effect that the stability of operation can be guaranteed for a long time can be added.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a slide switch of the present invention.

FIG. 2 is a vertical cross-sectional view after assembly of the same as above.

FIG. 3 is a vertical sectional view showing a state different from that of FIG.

FIG. 4 is a sectional view taken along the line of FIG.

FIG. 5 is a vertical sectional view of another embodiment of the present invention.

FIG. 6 is a sectional view showing another embodiment of the conductive piece used in the present invention.

FIG. 7 is a sectional view showing another embodiment of the conductive piece used in the present invention.

[Explanation of symbols]

 1 Insulating base 1a Recess 2 Upper plate 3 Hole 4 Knob 5 Sliding body 5a Recess 6 Recess 6 Conductive piece 6a A pair of folding bullet pieces 7 Intermediate projecting surface 8 Fixed conductor 9 Embedded fixing part such as groove or hole 10 Holding plate

Claims (2)

[Claims] 1. A slide switch having a movable contact piece on a sliding body, wherein a knob 4 is exposed to the outside from a hole 3 in an upper plate 2 of an insulating substrate 1 formed in a substantially U-shaped cross section, and the concave portion of the insulating substrate 1 is exposed. An insulating sliding body 5 is movably provided in the place 1a, and a substantially U-shaped conductive piece 6 having a pair of folding bullet pieces 6a, 6a is arranged in the recess 5a of the sliding body 5 and the middle thereof is provided. A slide switch in which a plurality of fixed conductors (8, 8) over which a projecting surface (7) is slidably contacted are fixed in parallel to each other at a lower portion of the insulating base (1) with a space therebetween. 2. A slide switch according to claim 1, wherein a plurality of fixed conductors (8, 8) are fixed in parallel to the lower part of the insulating substrate (1) by embedded fixing portions (9) such as grooves and holes.