Lock device
AssigneeVolkswagen Aktiengesellschaft
InventorsJoerg HAVEMANN, Helge WINKLER
Life of this patent
Estimating the term…
Abstract
A lock device having a lock cylinder and a flat key having a control gate. The lock cylinder has a cylinder housing and a cylinder core rotationally supported in the cylinder housing and a plurality of plate-shaped tumblers that are supported in the cylinder core so as to be radially slidable with respect to the rotational axis of the cylinder core and which each have a key opening and are at least partially pushed by the spring load into a locking channel of the cylinder housing in order to lock the lock cylinder when the flat key is removed and which are slid into an unlocking position by the control cam guided in the control gate when the key is inserted. At least one stop is associated with each of the tumblers in order to limit the sliding path to conceal the unlocking position.
Claims10
A lock device comprising:
- a flat key having a control gate;
- and
- a lock cylinder comprising a cylinder housing, a cylinder core rotatably supported in the cylinder housing, and multiple plate-shaped tumblers supported in the cylinder core so as to be movable radially with respect to an axis of rotation of the cylinder core,
- wherein each of the tumblers has a key opening with a control cam and is at least partially pushed into a locking channel of the cylinder housing by spring loading to lock the lock cylinder when the flat key is removed, and is moved into an unlocking position by the control cam guided in the control gate when the key is inserted, and
- wherein each of the tumblers is provided with at least one stop to limit the displacement travel in at least one direction of displacement to conceal the unlocking position, and
- wherein the stop of at least one of the tumblers is arranged such that this tumbler is pushed into its unlocking position by the spring loading when the key is removed.
Dependencies are inferred from the claim text.