Patent ID: 8256492

Claim:
A sunshade device for a vehicle, comprising: two track rails respectively having rail grooves with open ends facing each other; a sunshade unit including a rewindable winding shaft assembly, and a sunshade cloth that is wound around said winding shaft assembly and that can be stretched out along a length direction of said track rails, said sunshade cloth having two opposite lateral ends inserted respectively into said rail grooves, and a pull end interconnecting said lateral ends and disposed away from said winding shaft assembly; a cross bar extending between said track rails, attached to said pull end, and having a longitudinal through hole extending through two longitudinally opposed ends of said cross bar; and a tensioning unit disposed in said through hole and connected to said sunshade unit, said tensioning unit including a spring disposed within said through hole, a buffer sleeve disposed around said spring, two tension cords respectively connected to two opposite ends of said spring and further connected to the winding shaft assembly, each of said tension cords having an intermediate section attached to one of said lateral ends of said sunshade cloth, a first end section connected to said spring, and a second end section connected to said winding shaft assembly.