Drive assembly for displacement of flap of motor car has drive roller that is coupled/uncoupled to motor assembly when relative movement between drive roller and drive shaft is in coupling direction or free-wheeling direction

摘要

The drive assembly has valve spring assembly having valve spring elements and motor assembly. A motor drive train has flexible power transmission element (5) for transmission of drive movements. A drive roller (6) is biased by drive roller spring assembly (7) in biasing direction (8) and is coupled/uncoupled to motor assembly via freewheel clutch (9) having a drive shaft (10) when relative movement between the drive roller and the drive shaft is in a coupling direction (11) or free-wheeling direction (12).