US Patent 7182400 Sliding roof system

A sliding roof system includes at least one cover, two guide rails, and first and second carriages that are movable in the two guide rails. The sliding roof system also includes first and second holding parts that are each coupled with one of the first and second carriages and that are each coupled with a rear edge of the cover. The first and second holding parts can be shifted between a first position in which there is a first clearance between the first and second holding parts, and a second position in which there is a second clearance between the first and second holding parts that is larger than the first clearance.