Door lock having a closing aid
AssigneeSiemens Aktiengesellschaft
InventorsJürgen Ehret, Michael Helmer
Life of this patent
Estimating the term…
Abstract
A door lock (12) which is conceived in particular for use in motor vehicle doors has a rotary latch (14) and a closing aid (10) which acts on the latter and, with the aid of a drive, carries along the door to be closed in to the closed position. Known door locks having a closing aid have an increased space requirement and cannot readily be accommodated in structurally predetermined constructional spaces. The invention provides the drive of the closing aid such that it is separated structurally from the door lock (12) and provides a flexible drive element for transmitting force from the drive to the rotary latch (14). If appropriate, a deflection roller (26) may be provided and may be designed such that it is movable in order to bring about an auxiliary opening.
Claims6
A door lock for motor vehicles having a rotary latch (14) and a closing aid (10) which acts on the latter and, with aid of a drive, carries along a door to be closed over a last section into closed position, wherein the drive of the closing aid (10) is separated structurally from the door lock (12) and a flexible drive element (24) is provided for transmitting force from the drive to the rotary latch (14), wherein the flexible drive element undergoes a change in direction with aid of at least one deflection roller (26), wherein the deflection roller (26) is rotatably mounted on a toggle lever (38) and is moveable from its normal position by the toggle lever into an auxiliary opening position shortening path of the drive element, wherein
- the toggle lever (38) is foldable in by actuation of an auxiliary opening device to displace the rotational axis of the deflection roller (26) during movement of the deflection roller by the toggle lever.
Dependencies are inferred from the claim text.