Abstract: A shading assembly includes two parallel longitudinal guide rails that have respective longitudinal channels. A curtain has two lateral guided sides received in the channels. Two spiral spring strips are respectively inserted into the channels. Two connection strings respectively fasten the spiral spring strips to the guided sides. Each of the spiral spring strips has a plurality of spaced-apart connection holes. Each of the connection strings is sewn to a corresponding one of the spiral spring strips and a corresponding one of the guided sides and passes through the connection holes.

Abstract: A sunshade assembly includes a winding shaft, a sunshade curtain wound around the winding shaft, a pull rod connected to the sunshade curtain end distal from the winding shaft, and two guide rail units. Each guide rail unit includes a longitudinal rack member in a direction transverse to the winding shaft. A link unit includes a connecting shaft and two pinion gears respectively attached to the connecting shaft and meshed with the rack members. A resistance unit includes a base mounted to the pull rod and frictionally contacting the connecting shaft to provide a resisting force against rotation of the connecting shaft.