Switch having a locking mechanism

Details Switch having a locking mechanism Switch having a locking mechanism

1991-01-18

1991-11-26

Recla, Henry J.

Electricity: circuit makers and breakers

Solid contact

Push button operated

200528, 200531, 200336, H01H 1358, H01H 1962

Patent

active

050685066

ABSTRACT:
A switch includes a casing in which a contact holder is movably provided allowing the holder to move from an original position into a pressed in position in response to the pressing of a button. The contact holder is biased toward the original position by a spring. A rotor is provided on either the fixed casing or the movable contact holder such that the rotor is rotatable about an axis parallel with the direction of movement of the contact holder. The outside circumferential surface of the rotor has a cam groove which has oblique parts and locking halfway parts. A locking projection is provided on either the contact holder or the casing, and the locking projection is fitted in the cam groove so that the projection slides relating to the groove as the holder is moved, thereby rotating the rotor. A contact on the contact holder selectively engages a contact on the casing, depending on whether the holder is in the original or the pressed in position.

REFERENCES:
patent: 1285072 (1918-11-01), Douglas
patent: 1732577 (1929-10-01), Durdin, Jr.
patent: 3223072 (1965-12-01), Bross
patent: 3523168 (1970-08-01), Holmes
patent: 4319106 (1982-03-01), Armitage
patent: 4506124 (1985-03-01), Rose et al.

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