Lifter apparatus for pivotal-sliding roof panel assembly

A lifter apparatus for moving a roof panel between closed, open and vent positions in an opening of a roof of a vehicle. The lifter apparatus includes a link pivotally connected at a first end to a slidable guide shoe mounted in a longitudinally extending guide rail attached to the vehicle. The second end of the link is slidingly disposed in an aperture formed in an attachment member secured to the roof panel. A cam block mounted on the guide shoe engages the attachment member to urge the attachment member upward such that the roof panel is urged into registry with the roof opening to close the roof opening. Further movement of the guide shoe causes the link to pivot about the first end to a substantially vertical orientation such that the second end of the link slides along the aperture in the attachment member and urges the attachment member and roof panel upward to the vent position.