Importance

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Abstract

A locking device for a lock cylinder (12) has an electronically controlled inhibiting element (2), which in an inhibit position (x.sub.S) blocks movement of a rotor (1) relative to a stator (6) and frees the rotor (1) in a free position (x.sub.F). A drive (9) exerts a working force (F.sub.A) on the inhibiting element (2), by which inhibiting element (2) can be reversibly transferred from the inhibit position (x.sub.S) into the free position (x.sub.F) and vice versa. A guide (52-57) is connected to the drive (9) and, at least outside the free position (x.sub.F), clearly defines the position of the inhibiting element (2). A restoring device (3) exerts a restoring force (F.sub.R) directed away from the free position (x.sub.F) on the inhibiting element (2), when that element is between the free position (x.sub.F) and a rest position (x.sub.O). In the rest position (x.sub.O) and in positions between the rest position (x.sub.O) and the free position (x.sub.F), the inhibiting element inhibits movement of the rotor (1). The locking device is resistant to external, undesired vibration and/or shock effects or magnetic action.

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First Claim