Patent ID: 6637157
Filing Date: 2003-10-28
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 an open position and a closed position about a hinge axis comprising:at least one drive unit that includes a reversible electric motor, a housing having a forward linear track and a contiguous rearward curved track, a segmented drive linkage that is disposed in the housing, the segmented drive linkage having an elongated arcuate link that is adapted for pivotal attachment to the vehicle liftgate at one end and that is guided by the rearward curved track, a linear rack link that is guided by the forward linear track, and an intermediate elongated link that has an inner end that is pivotally attached to a mid point of the linear rack link and an outer end that is pivotally attached to an inner end of the elongated arcuate link, the linear rack link being driven by the reversible electric motor via an output gear.