Pin tumbler locks and their assembly

Details Pin tumbler locks and their assembly Pin tumbler locks and their assembly

1978-05-25

1980-11-04

Wolfe, Robert L.

Locks

Operating mechanism

Key

70373, 70378, E05B 904, E05B 1514, E05B 2704

Patent

active

042312434

ABSTRACT:
A tumbler lock is disclosed comprising a body and a cylindrical plug having an axial key passage rotatably mounted in the body. The plug and the body have aligned radial holes containing respective sets of tumblers, the tumblers in the body holes being spring urged toward the plug. The holes in the body have an outer conically tapering portion into which the respective tumblers are wedged prior to assembly of the lock and during assembly the tumblers are pressed out of these conical portions by a tool inserted into an opening in the body.

REFERENCES:
patent: 3673831 (1972-07-01), Nelson
patent: 4094175 (1978-06-01), Pechner

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