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US 12,269,377 B2Granted
Vehicle seatback folding device
AssigneeHyundai Transys Inc.
InventorsCheol Hwan Yoon, Kyeong Ju Kim, Hwa Young Mun, Jung Bin Lee, Jun Sik Hwang
Life of this patent
Estimating the term…
Abstract
A vehicle seatback folding device includes: a cushion bracket; a back side frame rotating on the cushion bracket; a spring mounting bracket coupled to rotate integrally with the back side frame around a hinge-coupling part; a return spring for applying, to the back side frame, elastic restoring force for rotating the back side frame in the folding direction of a seatback; and a reverse spring supported in a state in which a first end portion is caught by the spring mounting bracket and a second end portion is caught by a first spring support end.
Claims20
A vehicle seatback folding device comprising:
- a cushion bracket integrally coupled to a seat cushion;
- a back side frame integrally coupled to a seatback and hinged to the cushion bracket, the back side frame being rotated on the cushion bracket when the seatback is folded or unfolded;
- a spring mounting bracket integrally coupled to the back side frame, wherein the spring mounting bracket is configured to rotate with the back side frame around a hinge shaft coupling the cushion bracket and the back side frame;
- a restoring spring including a first end and a second end, the first end fixedly coupled to the spring mounting bracket, the second end caught and supported by a fixed support end integrally provided in the cushion bracket, the restoring spring configured to apply elastic restoring force to the back side frame so as to allow the back side frame to be rotated in a folding direction of the seatback;
- and
- a reverse spring including a first end fixedly coupled to the spring mounting bracket and a second end supported while being caught by a first spring support end integrally provided on the back side frame in an unfolded state of the seatback,
- wherein the restoring spring and the reverse spring are spiral springs respectively disposed around the hinge shaft coupling the cushion bracket and the back side frame,
- wherein the first end of the restoring spring and the first end of the reverse spring are inner ends located radially inwards in a spiral shape of the spring, and
- wherein the second end of the restoring spring and the second end of the reverse spring are outer ends located radially outwards in the spiral shape of the spring.
6 more elements
A vehicle seatback folding device comprising:
- a cushion bracket integrally coupled to a seat cushion;
- a back side frame integrally coupled to a seatback and hinged to the cushion bracket, the back side frame being rotated on the cushion bracket when the seatback is folded or unfolded;
- a spring mounting bracket integrally coupled to the back side frame, wherein the spring mounting bracket is configured to rotate with the back side frame around a hinge shaft coupling the cushion bracket and the back side frame;
- a restoring spring including a first end and a second end, the first end fixedly coupled to the spring mounting bracket, the second end caught and supported by a fixed support end integrally provided in the cushion bracket, the restoring spring configured to apply elastic restoring force to the back side frame so as to allow the back side frame to be rotated in a folding direction of the seatback;
- and
- a reverse spring including a first end fixedly coupled to the spring mounting bracket and a second end supported while being caught by a first spring support end integrally provided on the back side frame in an unfolded state of the seatback,
- wherein, when the back side frame is rotated by a predetermined angle or more in the folding direction with the seatback, the second end of the restoring spring is caught and supported by a second spring support end integrally provided on the back side frame, and the reverse spring applies elastic restoring force to the back side frame so as to allow the back side frame to be rotated in an unfolding direction of the seatback while the second end thereof is caught and supported by a stopper end integrally provided in the cushion bracket,
- wherein the cushion bracket includes a base bracket integrally installed therein, and
- wherein the base bracket includes the fixed support end and the stopper end respectively formed thereon.
6 more elements
Dependencies are inferred from the claim text.