Patent ID: 7140214
Filing Date: 2006-11-28
Classification: E05B,Y10T

Abstract:
1. An electromechanical cylinder lock-key combination, comprising: a housing having a bore; a core rotatably arranged in said bore and having a key-way for receiving a key having a grip portion and a bit portion; a plurality of key actuated moveable blocking elements for blocking the rotation of said core relatively to said housing unless a correct key is inserted in said key-way; an electronic processing unit; an optical code element provided on said bit portion of said key; an optical code reader provided in said lock; characterized by a bar element comprising at least one of said key actuated moveable blocking elements, said bar element barring insertion of said key into said key-way when movement of said bar element is prevented, an electronically controlled latch element moveable between a latching position, wherein movement of said bar element is prevented by said latching element, and a releasing position, wherein movement of said bar element is allowed by said latching element, and a means for moving said latch element to said releasing position upon detection by said optical code reader of a correct optical code element on said key.