Abstract: A cylinder lock/key combination includes a lock cylinder (2), a plug (3) rotatably mounted in the cylinder (2) and having a key slot (4), and a number of tumbler pins (6) that are activatable by the code (5a) on the key (5). The key slot carries or houses an element (7) which extends axially along a substantial part of the slot. The key (5) has a blade part (5c) which includes an axially extending portion (5d) in which there is provided a hole (8) for receiving the slot-carried element (7) as the key is inserted into the lock. The slot-carried element (7) and the hole (8) provided in the key (5) are located eccentrically in relation to the center of the plug (3) and accompany rotation of the plug while aided by the key (5). The profile shape of the slot-carried element (7) and the hole (8) in the key may vary within wide limits. The invention also relates to a key belonging to a combination of the aforementioned kind, and to a key blank from which such a key can be produced.

Abstract: A cylinder lock (1) comprises a lock cylinder (2) and a key-operated cylinder plug (3). A latching element (10) is located in the region of the boundary surface between the lock cylinder and the plug and is activated by an electrically actuable blocking element (11) which is movable between a release position and a blocking position. The plug cannot be turned by means of the key when the blocking element is in its blocking position. The latching element (10) has a length which is slightly shorter than the axial length of the plug (3).

Abstract: A lock mechanism of the narrow-profile-lock kind comprises a pivotal latch hook (4) which can be manipulated by a key via a cylinder-lock follower (19), a rack element (18), a follower (17) and a spring-activated drive element (6). The lock plunger can also be activated via an electric motor (11), an output shaft (10), and a worm gear (9) which is in meshing engagement with a dogging element (8) which is pivotally mounted on the same shaft (7) as the follower element (17) and has dogs or projections (8b) which enter sector-shaped slots (17b) having a figure-eight configuration. When the electric motor is started the dogging element (8) is rotated through 90.degree. and the latch hook (4) adopts its locking position. The electric motor returns immediately the dogging element (8) to its starting position, while the follower element (17) remains.