Locking type push-button switch

Details Locking type push-button switch Locking type push-button switch

1981-06-22

1983-05-10

Shepperd, John W.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200328, H01H 1356

Patent

active

043831532

ABSTRACT:
A miniaturized locking type push-button switch capable of being assembled easily, and consisting of an operating unit, a spring urging the operating unit in a direction opposite to the direction in which the operating unit is pressed, a slide element holding movable contact members therein, having a heart-shaped groove and slidingly moved in accordance with the displacement of the operating unit on a member to which fixed contact members are attached, a single-acting pin moving along the heart-shaped groove in accordance with an amount of displacement of the operating unit, and an enclosure in which the above parts are housed. This push-button switch is characterized by a single-acting pin supporting element consisting of a one-piece resilient plate having an inwardly extending tongue in the central portion thereof. The single-acting pin is oscillatably supported on the supporting element to form a single-acting block, which is inserted in the enclosure to be fixed therein. The single-acting pin supporting element can be held by fingers during the assembling of a locking mechanism for the switch, so that a push-button switch assembled excellently with ease even when the dimensions thereof have been much reduced.

REFERENCES:
patent: 3639714 (1972-02-01), Fujimoto et al.
patent: 3732386 (1973-05-01), Ohkita
patent: 3914570 (1975-10-01), Lockard
patent: 4013855 (1977-03-01), Reichen et al.
patent: 4218598 (1980-08-01), Iwasaki et al.

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