Contactless snap-action photoelectric switch
First Claim
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1. A contactless switch comprising:
- a switch base;
a plurality of planar terminal members formed in said base in a common plane;
a photoelectric semiconductor device mounted on one of said terminal members and electrically connected with plurality of said terminal members;
a light-emitting semiconductor device confronting said photoelectric semiconductor device and electrically connected with at least one of said terminal members;
a shutter means with a light-blocking portion movable in a space between said photoelectric semiconductor device and said light-emitting semiconductor device, said shutter means including a means for imparting a snap-action operation to the movement of said shutter means.
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Abstract
A contactless switch which comprises a paired light-emitting diode and photoelectric transistor and a shutter means for temporarily blocking light passing from the diode to the transistor. A method for the production of this switch is also described. The above diode and transistor are mounted on terminal members stamped in a metal strip, which terminal members are connected by webs as molded but trimmed off from each other in assembling. The terminal members are embedded at least partially in a switch base made of plastic material and bent to bring said diode and transistor in confronting relation. The snap action means is associated with an actuator.
24 Citations
6 Claims
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1. A contactless switch comprising:
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a switch base; a plurality of planar terminal members formed in said base in a common plane; a photoelectric semiconductor device mounted on one of said terminal members and electrically connected with plurality of said terminal members; a light-emitting semiconductor device confronting said photoelectric semiconductor device and electrically connected with at least one of said terminal members; a shutter means with a light-blocking portion movable in a space between said photoelectric semiconductor device and said light-emitting semiconductor device, said shutter means including a means for imparting a snap-action operation to the movement of said shutter means. - View Dependent Claims (2, 3, 4, 5)
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6. A contactless switch comprising:
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a switch base of opaque plastic material; a plurality of terminal members formed in said base in a common plane; an integrated semiconductor device including at least a photoelectric transducing element mounted on one of said terminal members, electrically connected with a plurality of said terminal members and molded in a protective cover of transparent plastic material; a light-emitting diode mounted on one of said terminal members, electrically connected with a plurality of said terminal members and molded in a protective cover of transparent plastic material; a snap-action means for moving a shutter to temporarily block light passing from said light-emitting diode to said photoelectric element; a switch cover for said switch base; and an actuator for actuating said snap-action means.
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Specification