Patent ID: 8028553
Filing Date: 2011-10-04
Classification: E05B,G07C,Y10T

Abstract:
1. A lock cylinder with a lock cylinder housing, a knob shaft rotatable by means of a knob wherein the knob is attached to the knob shaft, the knob shaft mounted to rotate on one side or both sides of the lock cylinder, at least one electromechanically operating coupling device, which, based on an authorization signal, connects a lock element to rotate in unison with the knob shaft in order to operate a lock, the authorization signal being produced by an evaluation electronics based on an input signal, the evaluation electronics positioned in the knob shaft, at least one reading unit with a receiving unit to receive the input signal, the at least one reading unit with the receiving unit is arranged spatially separated from the evaluation electronics in the knob, the knob is connected electrically and mechanically releasable to the knob shaft, and the reading unit produces, from the input signal, an access signal that can be evaluated by the evaluation electronics.