Closure drive group for automobile door closure has drive motor and drive transmission with spindle gearing and parallelogram linkage acted on by spring element biased in opening direction

摘要

The closure drive group (1) has a drive motor and a drive transmission with a spindle gearing (3) and parallelogram linkage (4), which is coupled to the closure catch via a spring element (22) which is biased in the opening direction, for providing a one-way freewheel coupling. The parallelogram linkage has a stationary mounting (5) and an opposing mounting (6) coupled to the closure catch, the remaining mountings (7,8) moved together by the spindle drive for compression of the spring element acting between them.