Electromechanical lock cylinder

US7874190B2 · kind B2 · utility

Assignee

• ASSA ABLOY AB · SE

Inventors

• Volker Krisch · Hamburg, DE
• Hardy Bismark · Norderstedt, DE
• Bernhard Mueller · Finsing, DE
• Jurgen Hofmann · Spalt, DE
• Bertrand Roland · Hamburg, DE

Key dates

• Filing date: Jun 22, 2004
• Grant date: Jan 25, 2011
• Expiry date: Jul 23, 2025

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T70/713
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

The invention concerns an electromechanical lock cylinder that cooperates with evaluation electronics to recognize access authorization and has a housing that includes two opposite cylindrical receptacles, in which a lock core, which can be operated by a key, or a knob shaft, which is connected to rotate in unison with a know, are mounted to rotation, in which the lock core and/or knob shaft cooperate with a lock tab, which operates, in particular, a bolt or latch with a door lock, and, with a fitting key or access authorization, an electromechanically driven blocking or coupling element is moved from the rest position to an operating position and produces a splined connection between the key or knob and the lock tab, characterized by the fact that the lock tab is freely rotatable relative to the two lock cores or the two knob shafts in the rest position of the blocking or coupling element.