Patent ID: 6318025
Filing Date: 2001-11-20
Classification: E05F,E05Y

Abstract:
A power operating system for opening and closing a vehicle liftgate that is pivotally attached to an aft end of a vehicle roof for pivotal movement between and open position and a closed position about a generally horizontal hinge axis, comprising in combination;a gas spring strut counterbalance system having at least one gas spring strut that is pivotally attached to the vehicle and to the vehicle liftgate for opening the vehicle liftgate; andat least one drive unit that includes motor, a spool driven by the motor in a wind-up direction, a flexible web that has one end attached to the spool and an opposite end attached to the liftgate, and a pusher member that is driven by the motor to an extended position when the spool is driven by the motor in an opposite direction, the pusher member when extended engaging the liftgate and rotating the liftgate during an initial opening movement of the liftgate.