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US 4,383,153 AGranted
Locking type push-button switch
AssigneeAlps Electric Co., Ltd.
InventorsShiro Kondo, Masao Kumagai
Life of this patent
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AssigneeAlps Electric Co., Ltd.
InventorsShiro Kondo, Masao Kumagai
Estimating the term…
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.
In a locking type push-button switch having an operating unit, a spring urging said operating unit in a direction opposite to the direction in which said operating unit is actuatable, a slide element holding movable contact members therein and provided with a heart-shaped groove, said slide member being adapted to be moved slidingly in accordance with the displacement of said operating unit on a member to which fixed contact members are attached, a single-acting pin engaged at one end portion thereof with said heart shaped groove and adapted to be moved along said heart-shaped groove in accordance with an amount of displacement of said operating unit, and an enclosure in which the mentioned parts are housed, the improvement wherein said push-button switch includes an element for supporting said single-acting pin and consisting of a one-piece resilient spring plate having a tongue extending inwardly said supporting element holding the other end portion of said single-acting pin so as to allow said single-acting pin to be oscillated freely with the first-mentioned end portion of said single-acting pin being engaged with said tongue, said supporting element being inserted into said enclosure from an opening thereof to be fixed therein.
Dependencies are inferred from the claim text.