Cylinder lock, especially for motor vehicles
AssigneeDaimler-Benz Aktiengesellschaft
InventorsRolf Krugener, Hermann W. Kurth
Life of this patent
Estimating the term…
Abstract
A cylinder lock, especially for motor vehicles, consisting of a rotor with tumblers, which is operatively connected with locking elements; with a key pulled off in the locking position, the tumblers engage in a tumbler channel provided in the inner wall of a stator receiving the rotor; a cut-in or groove constructed as intentional breaking or rupturing place is provided in the rotor adjoining the last tumbler, as viewed in the key insertion direction, which ruptures when a springily engaging locking action between the rotor and the stator not accessible from the outside has taken place during a forcible pulling out of the rotor.
Claims8
A cylinder lock, comprising rotor means having tumbler means which engage into at least one tumbler channel means provided in the inner wall of a stator means receiving the rotor means, when a key is pulled off in the locking position, said rotor means being operable to be connected with at least one locking element, characterized in that the rotor means is provided with an intentional rupturing place adjoining the last tumbler means, as viewed in the key insertion direction, which ruptures during a forcible pulling out of the rotor means, whereby an elastically engaging locking not accessible from the outside takes place between the rotor and stator means, characterized in that said elastically engaging locking is facilitated through the use of resiliently engaging locking means comprising at least one guided bolt means which, when the rotor is pulled out, initially contacts an inlet bevel, then yields resiliently, and finally engages an associated recess.
Dependencies are inferred from the claim text.