Lock, especially for automotive doors, flaps or the like

Abstract

The invention relates to a lock, especially for automotive doors or flaps, comprising a rotary latch (20) with which a closing element (13) engages when the door is closed and which pivots the rotary latch (20) from an open position via a pre-latch position to a main latch position. The lock further comprises a catch (30) which, in a pre-latch position, engages with a pre-stop notch provided on the rotary latch (20), and in a main latch position engages with a main stop notch provided on the rotary latch (20). An actuating element (40) acts upon the catch (30) in the manner of a power-driven opening assistance. An actuating surface (44) which radially enlarges in the direction of rotation (42) effects the lifting of the latch (30) in a simple manner. A loaded lever on the lock prevents the catch (30) from re-engaging with the rotary latch (20) once the catch (30) is disengaged, in case the rotary latch (20) does not pivot to the open position due to a load. The inventive lock is inexpensive to produce and very reliable due to its simple design.

Description

technical field [0001] The invention relates to a lock, which can be used, for example, on a motor vehicle door or a vehicle cover. Such a lock has a latch which has not only a pre-locking position but also a main locking position into which a pawl can enter. When closing an opened door, a gap is sometimes left because the pawl only enters the pre-latching position of the latch. The latch remains in its pre-locked position thereafter. To close this gap, a motor-driven auxiliary closing device can be used, which contacts the latch and moves the latter further into its end position, in which it snaps into the main locking position. In the following description, this end position is referred to as the "main locking position". Background technique [0002] A lock of the above type is described in WO 99 / 49159. In this type of lock, a reduction gear is mounted on its motor drive, and the reduction gear has two output strokes. The first output stroke can act on the latch in th...

AI Technical Summary

Problems solved by technology

[0005] However, the disadvantage of this kind of lock is that in order to stagger the connection time of the two output strokes on the drive device, it is necessary to use a connection and control mechanism with high cost, so that the connection can be performed at an accurate time.

Therefore, the manufacturing cost of this lock is relatively high

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