Free wheel lock cylinder

Details Free wheel lock cylinder Free wheel lock cylinder

1996-04-03

1998-06-16

Gall, Lloyd A.

Locks

Operating mechanism

Key

70379R, 70422, E05B 2910

Patent

active

057654174

ABSTRACT:
A free wheel lock cylinder includes a main rotor having a plurality of slits communicating with a key hole and a recessed portion communicating with both the slits and the key hole. Tumblers, having positioning notched portions formed on upper edge portions thereof, are slidably received in the slits of the main rotor. An engagement bar, having an underside engageable with the positioning notched portions of the tumblers, is received in the recessed portion of the main rotor and is biased toward the tumblers. A rear rotor is engageable with the main rotor through an interlocking device that is movable in response to operation of the engagement bar. When a proper key is inserted in the key hole of the main rotor, the engagement bar engages aligned positioning notched portions of the tumblers. The main rotor engages the rear rotor through the interlocking device moving in response to the operation of the engagement bar so that the rear rotor turns in response to rotation of the main rotor.

REFERENCES:
patent: 1644092 (1927-10-01), Shinn
patent: 3410123 (1968-11-01), Jacobi
patent: 5577409 (1996-11-01), Oyabu et al.

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