Abstract: A frame structure of a sunroof apparatus includes a pair of guide rails provided, respectively, on both sides in a width direction of an opening of a vehicle and guiding a movement of a sunroof panel; a frame including a drain extended across the direction and connecting ends of the rails; sliders sliding in the rails, respectively; a drive device installed at the frame and making the sliders slide; cables connecting the sliders and the device and routed so as to cross above the drain; guide pipes covering the cables; and guide pipe grooves depressingly provided at the frame and where the guide pipes are arranged, respectively, wherein protrusion portions protruding outside from outer peripheries of the pipes are provided, and wherein engagement portions where the protrusion portions are engaged are formed in the grooves.

Abstract: In a sunroof system (3) for a vehicle using a push-pull cable (22) for actuating a sunroof panel (4), the push-pull cable is received in a drive pipe (25), and a sunroof frame (12) is provided with a drive pipe retaining feature (16, 18). Therefore, the drive pipe may be made of flexible material, and firmly held in place by the pipe retaining feature even when the push-pull cable is subjected to significant tensile and compressive load. The pipe retaining feature may include a pipe retaining groove (16) for receiving the drive pipe and clips (18) for resiliently retaining the drive pipes in the pipe retaining groove.