KEY AND RELATED LOCK

Abstract

The invention relates to a key (1) for locking a cylinder lock, comprising at least a first surface (2) and at least a second surface (2') and with detection positions (4) provided along the length of the key (1). At least one coding (3) is provided on the first surface (2), and at least one additional coding (3') is provided on the second surface (2). The codings comprise control positions (6, 6', 7, 7) which are provided on the detection positions (4) transversely to the length of the key (1) and which are arranged at specific control heights (5). At least one control position (25, 25') on both surfaces (2, 2') has a different dimension, preferably a larger diameter, at at least one sensing position (4) than a control position (6, 6, 7, 7') at another detection position (4).