JPH05342949A - 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 hexagonal conductive member 6 having a pair of flexible tongue members 6a, 6a is disposed in a recessed plate 5a of the slide body 5, and plural fixed conductors 8, 8 which are adjacent to each other covering an intermediate protruding surface 7 are fixed in parallel at a lower part of the insulation 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 flexible tongues as a movable contact piece in a slide switch, and a plurality of so-called bus bars as fixed conductors slidingly contacting the conductive piece. The present invention relates to a slide switch having a self-cleaning action in which a narrow width conductive plate, a conductor pipe, or a conductor rod is 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 hexagonal conductive bullet having a pair of flexible tongues is arranged in the recess of the sliding body. In addition, it can be achieved by fixing a plurality of fixed conductors that are slidably contacted 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 center position. First, the intermediate projecting surface of the conductive piece on the upper portion of the fixed conductor resists the elastic force of the flexible tongue piece of the conductive piece. Although it moves up and down, the flexible tongue at the upper part of the conductive piece is loosened at this time, and the upright part of the conductive piece moves up and down while sliding up and down the inner surface of the recess 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 flexible tongue piece of the conductive piece, and the intermediate projecting surface on the left side is moved downward. It is possible to perform a switch changeover by snapping between two fixed conductors and short-circuiting the two 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 hexagonal conductive piece 6 having a pair of flexible tongue 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 body 5 has elastic force generated on the upright portions 6b, 6b on both sides thereof. The fixed conductors 8 made of a plurality of narrow conductive plates, etc., which are temporarily fixed to each other and straddle the intermediate projecting surface 7 of the conductive bullet piece 6 and slidably contact each other as shown in FIGS. It is fixed in parallel to the lower part of 1 with a certain 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 hexagonal conductive piece 6 having an open upper end is placed in the recess 5a of a plastic-molded hollow rectangular parallelepiped sliding body 5 as shown in the figure. It was inserted against the elastic force of the tongues 6a, 6a, and this inserted state was temporarily fixed by the elastic force generated on both upright portions 6b, 6b of the conductive piece 6, and provided in the upper plate 2 of the recess 1a of the insulating base 1. The knob 4 is engaged in the hole 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 piece 6 as shown in FIGS.

After this application, the flexible tongue piece of the conductive piece 6
The pressing plate 11 is screwed onto the insulating substrate 1 with screws 12 and 12 so that the intermediate projecting surface 7 is slightly pushed in against the elastic force of 6a.

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
Alternatively, a conductive pipe as shown in FIG. 6 may be used.

The pair of flexible tongues 6a, 6a provided on the conductive piece 6 may be plastic bullets, and the tongues 6a, 6a are for crossing as shown in FIGS. 6 and 7. They may be formed so as to intersect each other by the notch 6c,
Further, 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,
8, the intermediate projecting surface 7 of the conductive bullet piece 6 is depressed by the elastic force of the flexible tongue pieces 6a, 6a as shown in FIG. 2, straddling the fixed conductors on both sides thereof to short-circuit them.

Next, in order to switch the switch, the knob 4 is moved to the left from the center position in FIG.
The intermediate projecting surface 7 of the conductive piece 6 rides on the upper part of 8 against the elastic force of the flexible tongues 6a, 6a forming a pair with the conductive piece 6, as shown in FIG. While the flexible tongues 6a, 6a on the upper part of the slacken, the conductive piece upright portions 6b, 6b move up and down while sliding up and down 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 flexible tongue piece of the conductive piece 6 is turned on.
Due to the elasticity of 6a, 6a, the upright portions 6b, 6b on both sides move downward in the recess 5a, and the intermediate projecting surface 7 snaps between the fixed conductors 8, 8 on the left side as shown by the alternate long and short dash line in FIG. With, it is possible to switch between the fixed conductors 8 and 8 by short-circuiting them.

Then, the intermediate projecting surface 7 of the conductive piece 6 which is moved by the knob 4 elastically snaps into the valley between 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.

[0025]

Since the present invention is configured as described above, it has the following effects. When the knob 4 is moved, the flexible tongues 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 When the apex of the intermediate projecting surface 7 of the conductive piece 6 crosses over the top of the, the elastic force of the flexible tongues 6a, 6a of the conductive piece 6 causes the intermediate projecting surface 7 to move to the left fixed conductor 8,
Since it is possible to switch between the fixed conductors 8 and 8 by short-circuiting between the fixed conductors 8 and 8 by performing a switch changeover, a coil spring and a movable conductor such as a steel ball in the above-mentioned prior art can be used as a single sheet in the present invention. Since the conductive piece 6 can also be used, the first effect is that the number of parts is reduced by half 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 second effect that the full automation of can be realized.

Since the conductive piece that moves with 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 third effect that the operation of the knob with crispness is possible.

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 the other valley to drop 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 fourth 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 perspective view showing another embodiment of the conductive piece used in the present invention.

FIG. 7 is a perspective 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 Recessed piece 6a Conductive piece 6a A pair of flexible lower pieces 7 Intermediate protruding surface 8 Fixed conductor 9 Embedded fixed 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 insulative sliding body 5 is movably provided in the place 1a, and a substantially hexagonal conductive piece 6 having a pair of flexible tongues 6a, 6a is arranged in the recess 5a of the sliding body 5.
And a plurality of fixed conductors slidingly contacting the intermediate projecting surface 7
A slide switch in which 8 and 8 are fixed in parallel to each other under 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.