Cutting tool for a lock cylinder

Abstract

The lock cylinder with an external housing accommodates, on its rear face, a closure element acting upon a mortise lock or the like and with an exchangeably inserted core unit the casing of which contains housing pins as tumblers and a cylinder core equipped with a key channel, said cylinder core also receiving core pins as tumblers and being connected merely in a plug-in manner to coupling pins which issue from said closure element and project freely into a socket in said external housing serving for insertion of said core unit, wherein engagement of said coupling pins extends only over a rear region, which is free from key channels, of said cylinder core. A tool is provided for cutting coupling pins on lock cylinders, which is designed as a gripper with two shearing jaws which are located axially in series and rest laterally adjacently to or in a carrying mandrel such that one of said shearing jaws is arranged rigidly on said carrying mandrel resting on one gripper arm and the second of said shearing jaws connected to a second gripper arm is rotatably mounted behind it in said carrying mandrel.

Dependencies are inferred from the claim text.