Combined electrical and manual window opening mechanism for motor vehicles has movable piece that is pushed by spring when electrical supply is interrupted such that crank pins are connected to pulley and manual window operation is enabled

摘要

A movable piece automatically connects a motor shaft to a pulley for pulling the window in the presence of electrical supply and electromagnetic force. When electrical supply is interrupted, the movable piece is pushed by a spring and crank pins are connected to the pulley, allowing manual operation of the window.