Patent ID: 8899250

Claim:
A tiltable sunshade comprising: a pole ( 111 ) including upper and lower ends ( 113 , 115 ) spaced from each other along a longitudinal axis of the pole ( 111 ), with the pole ( 111 ) further including an outer periphery ( 112 ) and an inner periphery ( 114 ) spaced from the outer periphery ( 112 ) in a radial direction perpendicular to the longitudinal axis of the pole ( 111 ), with the inner periphery ( 114 ) of the pole ( 111 ) defining a longitudinal hole ( 117 ), with the lower end ( 115 ) of the pole ( 111 ) adapted to be rotatably coupled to a base ( 467 ); a rod ( 573 ) rotatably received in the longitudinal hole ( 117 ) of the pole ( 111 ); a helical spring ( 579 ) mounted around the rod ( 573 ), with the helical spring ( 579 ) including first and second fixing ends ( 591 , 593 ) fixed to the rod ( 573 ), with the rod ( 573 ) and the helical spring ( 579 ) jointly rotatable about the longitudinal axis of the pole ( 111 ); a follower ( 599 ) received in the longitudinal hole ( 117 ) of the pole ( 111 ) and threadedly engaged with the helical spring ( 579 ), with rotation of the helical spring ( 579 ) about the longitudinal axis of the pole ( 111 ) causing movement of the follower ( 599 ) along the longitudinal axis of the pole ( 111 ) between a folded position and an unfolded position; a runner ( 297 ) slideably mounted around the pole ( 111 ), with the runner ( 297 ) coupled to the follower ( 599 ), with the runner ( 297 ) and the follower ( 599 ) jointly moveable along the longitudinal axis of the pole ( 111 ); a plurality of stretchers ( 313 ) each having a first end ( 315 ) pivotably connected to the runner ( 297 ) and a second end ( 317 ) spaced from the first end ( 315 ) along a longitudinal axis of the stretcher ( 313 ), with the plurality of stretchers ( 313 ) jointly movable with the runner ( 297 ) and the follower ( 599 ); a hub ( 439 ) mounted to the upper end ( 113 ) of the pole ( 111 ); and a plurality of ribs ( 451 ) each including a connecting end ( 453 ) pivotably connected to the hub ( 439 ), with the second end ( 317 ) of each of the plurality of stretchers ( 313 ) pivotably connected to one of the plurality of ribs ( 451 ), with a canopy ( 475 ) adapted to be mounted to the plurality of ribs ( 451 ), wherein rotation of the helical spring ( 579 ) causes movement of the follower ( 599 ) between the folded position and the unfolded position, the runner ( 297 ) moves together with the follower ( 599 ) to open or collapse the canopy ( 475 ), and wherein when the follower ( 599 ) is in the unfolded position, if the canopy ( 475 ), the plurality of ribs ( 475 ), or the plurality of stretchers ( 451 ) is subjected to an external force causing the runner ( 297 ) to move along longitudinal axis of the pole ( 111 ), the helical spring ( 579 ) is compressed by the follower ( 599 ) and undergoes elastic deformation, providing a buffering effect to the external force.