A lock, including: a retractable knob; and a knob release mechanism for retaining the retractable knob in a retracted position, wherein the knob release mechanism includes a damper with a gear that is slidably received within a set of grooves located in the retractable knob, and wherein the gear prevents rotation of the retractable knob unless it is in an extended position.

A control mechanism for controlling a door handle movable between a normal position in which the handle is flush with the door and a working position in which the handle protrudes from the door includes a first lever mounted so as to pivot about a first shaft supported by the handle, a second lever mounted so as to pivot about a second shaft supported by the handle in parallel to the first shaft and at a distance from the first shaft in a longitudinal direction of the handle, and a link rod having ends connected to the first lever and to the second lever by articulated links. At least one of the articulated links has play in a longitudinal direction of the link rod, and the first lever, the second lever, the link rod, and the handle form a deformable quadrilateral, the deformation of which moves of the handle.

A device for unlocking a door lock associated with a door handle mounted in order to slide in an aperture in the door between an inoperative position wherein the handle is flush with the door and an operative position wherein the handle projects from the door includes a cylinder supported by a holder directly or indirectly attached to the door. The cylinder is connected to an element for unlocking the lock via a part for moving the lock unlocking element, and the cylinder is mounted in the part in order to extend towards the handle at an angle to a direction normal to the door. In one form, the angle is sufficient to allow the cylinder to be introduced into the housing when the handle is in the operative position.

A lock assembly comprising a throw bolt, a bolt holder and a bolt keeper. The bolt comprises a cutting barrier and a bolt casing, the bolt casing being more corrosion-resistant than the cutting barrier, and the cutting barrier being more abrasion-resistant that the bolt casing. When assembled, the cutting barrier will be enclosed within the bolt casing.

A lock cylinder assembly includes a housing, a first cylinder disposed within a first bore formed in the housing, and a second cylinder disposed within a second bore formed in the housing, in which at least one of the first and second cylinders is an electronic cylinder. The lock cylinder assembly further includes first and second cams, in which each of the first and second cams are configured to actuate a door lock mechanism. The first cam is directly connected to the second cylinder so as to be rotatable with the second cylinder. The second cylinder and the second cam are rotatable with respect to each other so that the second cam does not rotate with the second cylinder. The second cam is rotatably coupled to the first cylinder so that the second cam rotates when the first cylinder is rotated.

A lock, including: a retractable knob; and a knob release mechanism for retaining the retractable knob in a retracted position, wherein the knob release mechanism includes a damper with a gear that is slidably received within a set of grooves located in the retractable knob, and wherein the gear prevents rotation of the retractable knob unless it is in an extended position.

A lock with an extended bolt throw comprising a back plate, a locking bolt having a rack gear profile on at least a portion of one side, slidably mounted to the back plate movable between a first position and a second position. An accelerator gear mounted to the back plate movable along an arcuate path between a first and second position. The accelerator gear comprising a curved edge having teeth which engage the rack gear profile of the locking bolt, and an opposing edge having a centrally located notch for engagement of a cam of a lock cylinder. Wherein as the cam rotates about the lock cylinder it engages the notch and urges the accelerator gear from the first position to the second position, which urges the locking bolt from the first position to the second position.

A lock set comprising a cylinder lock having a stator and a rotatable member rotatable in the stator and having a key slot and at least one side; a security element with protrusions, pivotally connected to the rotatable member; and one or more fitting keys, each having one or more recesses and one or more extensible members. The distances between the protrusions of the security element correspond to locations of the recess(es) and extendible member(s) of the fitting key for engagement therewith, such that using the fitting key will have the security element positioned in a non-obstructing position allowing free rotation of the rotatable member in the stator and using an unfitting key will cause a portion of the security element to protrude from the outer wall of the rotatable member engaging the inner wall of the stator thereby preventing rotation of the rotatable member in the stator.

The present invention provides a key blank and a key set. The key blank includes one or more telescopic members inserted through corresponding one or more channels of the key shank for fitting to release a security mechanism of a lock unit. The lock set has one or more fitting keys and a lock unit including: a stator; a rotor; a first locking mechanism; and an additional security mechanism including one or more wafer units. The key shank has one or more telescopic members each inserted in a channel perforated in the key shank. The wafer unit of the security mechanism is located and configured for engaging an edge of the telescopic member when the fitting key is used, such that each telescopic member will move the respective wafer unit it engages for releasing the additional security mechanism for allowing the rotor to rotate in the stator.

An outside-door-handle system is configured to be attached to a door of a passenger motor vehicle. The outside-door-handle system includes a holder, a lock cylinder, and a Bowden cable. The holder is configured to be fastened to the door. The lock cylinder is operatively connected to the holder. The Bowden cable has a core, and is operatively connected at one end thereof to the lock cylinder and at the other end thereof to a door lock situated in the door. At a portion that is adjacent to the lock cylinder, the core of the Bowden cable is operatively connected to a toothed rack which is operatively connected to the lock cylinder.