JPH02828Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a contact sliding type seesaw switch that can lengthen the stroke of a slide converter.

When a conventional seesaw switch is made into multiple circuits,
It is necessary to have multiple seesaw plates, which tends to increase the size, and as the number of seesaw plates increases, the operability of opening and closing the switch becomes worse. In addition, since the contact part is a touch type, even if dust or oxide film adheres to the contact part when using with excessive current, it is easily removed by the spark at the time of contact, but with a small current When used, the spark was weak and could not be removed, resulting in poor contact accidents.

Further, the slide type seesaw switch has a protrusion that swings together with the knob to interlock a slider having a movable contact piece. The tip of the protrusion has a semicircular shape with the same diameter as the protrusion, and is loosely fitted into the groove of the slider. That is, since the swinging protrusion is loosely fitted into the groove of the slider that reciprocates in a straight line, if the stroke of the slider is to be lengthened, play must be provided between the groove and the protrusion. That is, when the protrusion is in a vertical position, there is play between the protrusion of the knob and the groove of the slider, causing the slider to wobble.

Further, since the conventional seesaw switch does not include a night illumination lamp, there is a problem in that it is difficult to operate the switch at night.

The present invention eliminates these drawbacks.

The present invention will be described below based on embodiments shown in the drawings.

1 to 4 show an embodiment of the present invention.

1 is a switch case, 2 is an operation knob, and 3 is a support shaft. The operation knob 2 is rotatably supported on the switch case 1 by the support shaft 3, and can be rotated left and right within a certain range using the support shaft 3 as a fulcrum. Can tilt.

A hole 2b is formed at the center of the lower part of the operating knob 2 in an operating protrusion 2a formed integrally with the operating knob 2.
A pressing sphere 5 is installed so as to be freely ejectable via a spring 4.

Inside the switch case 1, a moderation ridge 1a is formed integrally with the switch case 1. Therefore, when the operating knob 2 is tilted to the left or right, the operating knob 2 is in an engaged state unless it is operated arbitrarily due to the engagement between the pressing sphere 5 and the moderation ridge 1a.

The switch case 1 is fitted onto the mounting member by a restraining protrusion 1b and a restraining protrusion 1c formed on the side. Further, a slide converter 6 is held in the switch case 1 and is slid to open and close the switch by operating the operation knob 2.
A groove 6a for converting and connecting the slide converter 6 into linear reciprocating motion is formed in the slide converter 6. The groove 6
A has chamfered both upper corners.

The slide converter 6 has a plurality of movable contacts 7 on the bottom surface.
is fixed to the base, and has legs protruding from both ends of the bottom surface. The slide converter 6 accommodates a movable contact 7 in the leg portion, prevents an unnecessary load from being applied to the movable contact 7, and
prevent it from deforming.

The operation knob 2 has protrusions 2 on both sides of the operation protrusion 2a.
d. The protruding part 2d has a spherical or cylindrical slide converter actuating part 2c, which is longer than the diameter of the protruding part, at the tip thereof, and the slide converter 6
Insert the slide converter operating portion 2c into the groove portion 6a.

Further, one end of a movable contact 7 which acts as a spring is fixed to the slide converter 6. A fixed terminal 8 that comes into contact with the movable contact 7 is fixed to a substrate 9 installed at the bottom of the switch case 1.

Therefore, when the operating knob 2 is tilted, the slide converter 6 slides, the movable contact 7 slides on the surface of the fixed terminal 8, and the switch is opened and closed.

Further, the operating knob 2 is constructed by inserting a spherical or cylindrical slide converter actuating portion 2c in which the distal end of the protruding portion 2d has a diameter longer than the width of the protruding portion 2d into the chamfered groove portion 6a of the slide converter 6. Therefore, the slide converter operating portion 2c can be inserted into the groove portion 6a without any play, and the protruding portion 2d does not come into contact with the corner of the groove portion 6a of the slide converter 6, thereby controlling the stroke of the slide converter 6. It can be made longer.

FIG. 1 shows an embodiment in which a lighting means is provided to illuminate the vicinity of the operating knob 2.
Installation of lighting means is optional.

In addition, 10 is an illumination lamp, and 11 is an illumination lamp 10.
A socket 12 is a transparent or translucent transmission plate installed in an illumination window 13 formed in the switch case 1. The illumination window 13 is provided adjacent to the operating knob 2 .

As described above, according to the present invention, by increasing or decreasing the number of movable contacts 7 or the number of contact pieces 7a of movable contacts 7, various multi-circuits can be manufactured as desired.

The number of fixed terminals 8 may be made to correspond to changes in movable contacts 7.

Therefore, it is possible to downsize the entire switch,
Various aspects such as space and cost can be rationalized, and the switch can be opened and closed smoothly.

In addition, since the contacts are sliding, even if dust or oxide film adheres to the contact area, the wiping action of the contact removes it and keeps the contact surface clean, making it easy to contact even when used with a minute current. It is possible to eliminate all bad accidents.

Further, the operating knob 2 is constructed by inserting a spherical or cylindrical slide converter actuating portion 2c in which the distal end of the protruding portion 2d has a diameter longer than the width of the protruding portion 2d into the chamfered groove portion 6a of the slide converter 6. Therefore, the slide converter operating portion 2c can be smoothly inserted into the groove portion 6a, and the stroke of the slide converter 6 can be lengthened.

Further, since the illumination window 13 is provided near the operation knob 2, operation at night can be performed very easily.

The slide converter has legs formed at both ends of the lower surface and is slidably inserted into the switch case, so that the slide converter can slide smoothly without rattling.

Since the switch case 1 has the restraining protrusion 1b and the restraining protrusion 1c formed on the side thereof, it is very easy to attach the switch case 1 to the mounting section. Further, since the switch case 1 has a moderation ridge 1a formed inside thereof, it is easy to assemble the operation knob 2 and the like, and the number of assembly steps can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a front cross-sectional view showing one embodiment of a sliding contact seesaw switch according to the present invention, and FIG.
3 is a cross-sectional view taken along the arrow line A-A in FIG. 1, and FIG. 4 is a sectional view taken along the arrow line B-B in FIG. It is a perspective view of a contact. 1... Switch case, 1a... Moderation mountain, 1b
... Deterrent convex portion, 1c ... Deterrent protrusion, 2 ... Operation knob, 2a ... Operation protrusion, 2c ... Slide converter actuating section, 2d ... Projection, 6 ... Slide converter, 6a ... ...Groove, 7...Movable contact, 8...Fixed terminal.

Claims (1)

[Scope of utility model registration request] an operating knob rotatably supported on a switch case, and a moderation ridge formed as a bridge between inner walls of the switch case in the swinging direction of the opposing operating knobs to provide moderation to the swinging of the operating knob; An operating protrusion formed at the lower part of the operating knob, a spring and a pressing sphere inserted into a hole of the operating protrusion to engage with the moderation ridge, and tips of protrusions on both sides of the operating protrusion. A spherical slide converter actuating part provided and having a diameter longer than the width of the protrusion, and two grooves into which the slide converter actuating parts are inserted are formed on the upper surface, and both upper corners of the grooves are formed. A slide converter having a chamfered bottom surface with legs formed at both ends and slidably inserted into the switch case; and a plurality of movable contacts made of leaf spring members attached to the bottom surface of the slide converter. A sliding contact type seesaw switch, comprising: a fixed terminal that slides into contact with the movable contact; and a substrate fixed to the fixed terminal and provided in a lower opening of the switch case.