Tumbler wheel combination locks with torque adjuster means

摘要

A combination lock of the tumbler wheel type having a plurality of tumbler wheels journaled for rotation on a stationary tumbler post within a lock case and means such as a driving cam for rotating the tumbler wheels to angular positions for unlocking the lock, wherein the lock case is provided with inclined ramp surfaces adjacent one end of the stack of tumbler wheels and a torque adjustment member having spring finger formations movable on the inclined ramp surface is adjustable responsive to insertion and operation of a tool into the lock mechanism chamber of the case to apply selected spring compression forces to the tumbler wheel stack and adjust the tension or torque properties thereof.