Patent ID: 7880327
Filing Date: 2011-02-01
Classification: E05B,H01H,Y10T

Abstract:
1. A key-operated lock device comprising: a lock, a key designed operable to actuate said lock, an electronic system commanded by said key, an electric power supply communicating the electric power necessary to operate said electronic system, and detecting means for detecting the presence or absence of said key, wherein the detecting means is operable to command the connection with the electric power supply of said electronic system only if the key is present in, or close to, the lock, and wherein the key-operated lock device comprises a plurality of relays that are mounted in series and are configured to be activated successively while the key is rotated such that, even in the case of an untoward sticking of one of the plurality of relays, the starter is not energized if the key is absent.