US 8,522,804 B1Granted

Tiltable sunshade

OwnerBenson Tunginventor

Life of this patent

Estimating the term…

Abstract

A sunshade (12) includes a pole (111) rotatably receiving a screw rod (295) that is can be rotated by operating a handle (213) to cause movement of a follower (277) in the pole (111) between a folded position, an unfolded position, and a tilted position. A runner (297) is mounted around the pole (111) and fixed to the follower (277) to move therewith. A pivotable member (383) is pivotably connected to a fixing member (363) fixed on an upper end (113) of the pole (111). Ribs (451) are pivotably mounted to a hub (439) fixed on the pivotable member (383). Stretchers (313) are pivotably mounted between the ribs (451) and the runner (297). The hub (439) and the ribs (451) are tilted when the pivotable member (383) is pivoted due to movement of the follower (277) from the unfolded position to the tilted position.

Claims5

Dependent claims

A 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 a first hole (137) extending from the outer periphery (112) through the inner periphery (114), with the lower end (115) of the pole (111) adapted to be rotatably coupled to a tube (469) on a base (467);
a first transmission member (151) rotatably mounted in the first hole (137), with the first transmission member (151) including a toothed portion (155) located in the longitudinal hole (117) of the pole (111);
a handle (213) located outside of the pole (111) and fixed to the first transmission member (151), with the handle (213) and the first transmission member (151) being jointly rotatable about a rotating axis perpendicular to the longitudinal axis of the pole (111);
a support (235) fixed in the longitudinal hole (117) of the pole (111) and located above the first transmission member (151) along the longitudinal axis of the pole (111);
a second transmission member (251) received in the longitudinal hole (117) of the pole (111), with the second transmission member (251) including a shaft (255) rotatably supported by the support (235), with the second transmission member (251) further including a toothed portion (253) meshed with the toothed portion (155) of the first transmission member (151), with the second transmission member (251) rotating about the longitudinal axis of the pole (111) when the first transmission member (151) rotates about the rotating axis;
a screw rod (295) including a lower end (296) fixed to the second transmission (251) and an upper end (298), with the lower end (296) of the screw rod (295) located between the upper end (298) of the screw rod (295) and the support (235) along the longitudinal axis of the pole (111), with the screw rod (295) and the second transmission member (251) being jointly rotatable about the longitudinal axis of the pole (111);
a follower (277) received in the longitudinal hole (117) of the pole (111) and threadedly engaged with the screw rod (295), with rotation of the screw rod (295) about the longitudinal axis of the pole (111) causing movement of the follower (277) along the longitudinal axis of the pole (111) between a folded position, an unfolded position, and a tilted position, with a first spacing between the follower (277) in the folded position and the second transmission member (251) along the longitudinal axis of the pole (111) being smaller than a second spacing between the follower (277) in the unfolded position and the second transmission member (251) along the longitudinal axis of the pole (111), with the second spacing being smaller than a third spacing between the follower (277) in the tilted position and the second transmission member (251) along the longitudinal axis of the pole (111);
a runner (297) mounted around the pole (111) and slideable relative to the pole (111), with the runner (297) fixed to and jointly movable with the follower (277);
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) being jointly movable with the runner (297) and the follower (277);
a fixing member (363) fixed to the upper end (113) of the pole (111), with the fixing member (363) including a sliding groove (375) and a pin hole (381);
a pivotable member (383) pivotably connected to the fixing member (363), with the pivotable member (383) including a track (395) and a pivot hole (394);
a pin (401) extending through the pivot hole (394) of the pivotable member (383) and the pin hole (381) of the fixing member (363), with the pivotable member (383) pivotable relative to the fixing member (363) about a pivot axis defined by the pin (401) between a first position and a second position, with a longitudinal axis of the pivotable member (383) in the first position being coaxial to the longitudinal axis of the pole (111), with the longitudinal axis of the pivotable member (383) in the second position being at an acute angle to the longitudinal axis of the pole (111);
an actuation rod (403) slideably extending through the sliding groove (375) of the fixing member (363) and slideably received in the track (395) of the pivotable member (383);
a link (471) including a first connection end (472) connected to the actuation rod (403) and a second connection end (473);
a connection member (405) including a first end (407) pivotably connected to the second connection end (473) of the link (471) and a second end (409);
a positioning pin (415) extending through the connection member (405) in a radial direction perpendicular to the longitudinal axis of the pole (111), with the positioning pin (415) having two ends located outside of the connection member (405);
a spring (421) mounted around the connection member (405) and including a first end (423) abutting the fixing member (363) and a second end (425) abutting the two ends of the positioning pin (415);
a hub (439) mounted to the pivotable member (383), with the hub (439) and the pivotable member (383) being jointly pivotable between the first and second positions;
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 when the follower (277) is in the folded position, the follower (277) is spaced from the second end (409) of the connection member (405) along the longitudinal axis of the pole (111), the pivotable member (383) is in the first position, each of the plurality of stretchers (313) and the plurality of ribs (451) are located adjacent to the pole (111), with the canopy (475) adapted to be in a collapsed state,
wherein when the follower (277) is in the unfolded position, the pivotable member (383) is in the first position, the canopy (475) is adapted to be unfolded by the plurality of stretchers (313) and the plurality of ribs (451),
wherein when the follower (277) moves from the unfolded position to the tilted position, the follower (277) pushes the connection member (405) to move along the longitudinal axis of the pole (111), causing compression of the spring (421) by the positioning pin (415), the connection member (405) actuates the link (471) to move the actuation rod (403) along the sliding groove (375) of the fixing member (363), the actuation rod (403) presses against a wall of the first track (395) of the pivotable member (383) to pivot the pivotable member (383) from the first position to the second position, the hub (439), the plurality of ribs (451), and the plurality of stretchers (313) pivot together with the pivotable member (383), the hub (439) and the plurality of ribs (451) are tilted relative to the pole (111),
wherein when the follower (277) moves from the tilted position to the unfolded position, the spring (421) presses against the positioning pin (415) to cause connection member (405) and the link (471) to move jointly along the longitudinal axis of the pole (111), the actuation rod (403) presses against the wall of the track (395) of the pivotable member (383) to pivot the pivotable member (383) from the second position to the first position, the hub (439) and the plurality of ribs (451) are not tilted relative to the pole (111) when the pivotable member (383) is in the first position.

21 more elements

Dependencies are inferred from the claim text.

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Abstract

A 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 a first hole (137) extending from the outer periphery (112) through the inner periphery (114), with the lower end (115) of the pole (111) adapted to be rotatably coupled to a tube (469) on a base (467);
a first transmission member (151) rotatably mounted in the first hole (137), with the first transmission member (151) including a toothed portion (155) located in the longitudinal hole (117) of the pole (111);
a handle (213) located outside of the pole (111) and fixed to the first transmission member (151), with the handle (213) and the first transmission member (151) being jointly rotatable about a rotating axis perpendicular to the longitudinal axis of the pole (111);
a support (235) fixed in the longitudinal hole (117) of the pole (111) and located above the first transmission member (151) along the longitudinal axis of the pole (111);
a second transmission member (251) received in the longitudinal hole (117) of the pole (111), with the second transmission member (251) including a shaft (255) rotatably supported by the support (235), with the second transmission member (251) further including a toothed portion (253) meshed with the toothed portion (155) of the first transmission member (151), with the second transmission member (251) rotating about the longitudinal axis of the pole (111) when the first transmission member (151) rotates about the rotating axis;
a screw rod (295) including a lower end (296) fixed to the second transmission (251) and an upper end (298), with the lower end (296) of the screw rod (295) located between the upper end (298) of the screw rod (295) and the support (235) along the longitudinal axis of the pole (111), with the screw rod (295) and the second transmission member (251) being jointly rotatable about the longitudinal axis of the pole (111);
a follower (277) received in the longitudinal hole (117) of the pole (111) and threadedly engaged with the screw rod (295), with rotation of the screw rod (295) about the longitudinal axis of the pole (111) causing movement of the follower (277) along the longitudinal axis of the pole (111) between a folded position, an unfolded position, and a tilted position, with a first spacing between the follower (277) in the folded position and the second transmission member (251) along the longitudinal axis of the pole (111) being smaller than a second spacing between the follower (277) in the unfolded position and the second transmission member (251) along the longitudinal axis of the pole (111), with the second spacing being smaller than a third spacing between the follower (277) in the tilted position and the second transmission member (251) along the longitudinal axis of the pole (111);
a runner (297) mounted around the pole (111) and slideable relative to the pole (111), with the runner (297) fixed to and jointly movable with the follower (277);
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) being jointly movable with the runner (297) and the follower (277);
a fixing member (363) fixed to the upper end (113) of the pole (111), with the fixing member (363) including a sliding groove (375) and a pin hole (381);
a pivotable member (383) pivotably connected to the fixing member (363), with the pivotable member (383) including a track (395) and a pivot hole (394);
a pin (401) extending through the pivot hole (394) of the pivotable member (383) and the pin hole (381) of the fixing member (363), with the pivotable member (383) pivotable relative to the fixing member (363) about a pivot axis defined by the pin (401) between a first position and a second position, with a longitudinal axis of the pivotable member (383) in the first position being coaxial to the longitudinal axis of the pole (111), with the longitudinal axis of the pivotable member (383) in the second position being at an acute angle to the longitudinal axis of the pole (111);
an actuation rod (403) slideably extending through the sliding groove (375) of the fixing member (363) and slideably received in the track (395) of the pivotable member (383);
a link (471) including a first connection end (472) connected to the actuation rod (403) and a second connection end (473);
a connection member (405) including a first end (407) pivotably connected to the second connection end (473) of the link (471) and a second end (409);
a positioning pin (415) extending through the connection member (405) in a radial direction perpendicular to the longitudinal axis of the pole (111), with the positioning pin (415) having two ends located outside of the connection member (405);
a spring (421) mounted around the connection member (405) and including a first end (423) abutting the fixing member (363) and a second end (425) abutting the two ends of the positioning pin (415);
a hub (439) mounted to the pivotable member (383), with the hub (439) and the pivotable member (383) being jointly pivotable between the first and second positions;
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 when the follower (277) is in the folded position, the follower (277) is spaced from the second end (409) of the connection member (405) along the longitudinal axis of the pole (111), the pivotable member (383) is in the first position, each of the plurality of stretchers (313) and the plurality of ribs (451) are located adjacent to the pole (111), with the canopy (475) adapted to be in a collapsed state,
wherein when the follower (277) is in the unfolded position, the pivotable member (383) is in the first position, the canopy (475) is adapted to be unfolded by the plurality of stretchers (313) and the plurality of ribs (451),
wherein when the follower (277) moves from the unfolded position to the tilted position, the follower (277) pushes the connection member (405) to move along the longitudinal axis of the pole (111), causing compression of the spring (421) by the positioning pin (415), the connection member (405) actuates the link (471) to move the actuation rod (403) along the sliding groove (375) of the fixing member (363), the actuation rod (403) presses against a wall of the first track (395) of the pivotable member (383) to pivot the pivotable member (383) from the first position to the second position, the hub (439), the plurality of ribs (451), and the plurality of stretchers (313) pivot together with the pivotable member (383), the hub (439) and the plurality of ribs (451) are tilted relative to the pole (111),
wherein when the follower (277) moves from the tilted position to the unfolded position, the spring (421) presses against the positioning pin (415) to cause connection member (405) and the link (471) to move jointly along the longitudinal axis of the pole (111), the actuation rod (403) presses against the wall of the track (395) of the pivotable member (383) to pivot the pivotable member (383) from the second position to the first position, the hub (439) and the plurality of ribs (451) are not tilted relative to the pole (111) when the pivotable member (383) is in the first position.

21 more elements