Abstract: A remote-control system for closures with a movable hand transmitter with at least one transmission key, this transmitter generating and radiating directed coded control signals upon actuation of the transmission key of the hand transmitter. At least one first receiver unit is tuned to receive the control signals radiated from the hand transmitter and is arranged on a motor vehicle and triggers switching effects on a remotely controllable vehicle locking after the received control signals have been identified as acceptable. At least one second receiver unit is tuned to receive control signals radiated as a result of the actuation of the transmission key of the hand transmitter for remotely controlling a remotely controllable access control device external to the motor vehicle. This second receiver unit is arranged outside the motor vehicle and triggers switching effects on the access control device after the received control signals have been identified as acceptable.

Abstract: Motor vehicle door handle of the type having a spring biased actuating lever for activating the closing mechanism. To reduce impact noise, the actuating lever is assigned, during its return movement until its end position is reached, a damping element which exerts on the actuating lever a braking force reduced with decreasing speed of the actuating lever, thus allowing a uniform return of the actuating lever into its end position and consequently an effective minimization of the impact noise.

Abstract: A lock cylinder having a cylinder housing in which a cylinder core is rotatably disposed and which can be locked with the cylinder housing via spring-loaded tumblers upon the withdrawal of a key from a key duct of the cylinder core. A bearing sleeve encloses the cylinder housing and the cylinder housing is rotationally fixed by means of an overload coupling in this bearing sleeve. A rotary connecting element, arranged behind the lock cylinder, leads to a locking mechanism which and can be connected with the cylinder core by a separating coupling. The lock cylinder, while maintaining its overload protection, becomes suitable for the rotational control of a locking mechanism which is arranged separately of the lock cylinder.

Abstract: The invention relates to a rectangular key case having a swing-out flat key, so that the key can be integrated into the case in a space-saving manner. The case contains a key receiving space formed as a two-legged receiving shaft which, viewed over its length, is essentially L-shaped and extends with its longer leg along the side edge and with its shorter leg along the front edge of the key case housing. The flat key, in its non-working position, is lowered with its shank part entering into the longer leg and with its grip part entering into the shorter leg located near the corner of the key case housing. The shank part of the flat key is pivoted outside the housing and around its corner with the flat key in a working position pointed in the opposite direction from its non-working position and whereupon the grip part of the key engages into a longitudinal area of the shorter leg more remote from the corner.