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Vehicle seat structure, and a vehicle provided with a seat having such a structure

  • US 7,243,992 B2
  • Filed: 12/13/2004
  • Issued: 07/17/2007
  • Est. Priority Date: 12/22/2003
  • Status: Expired due to Fees
First Claim
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1. A system comprising a seat belt and a structure for a motor vehicle seat proper, the structure comprising:

  • a rigid frame for said seat proper, the frame extending between a front portion and a rear portion, the frame including a side cheek plate extending from said rear portion of the rigid frame to said front portion of the rigid frame; and

    a coupling system comprising a link having a bottom portion mounted to pivot on a base and a top portion mounted to pivot relative to the rear portion of said rigid frame about a first pivot axis so that said bottom portion of the link pivoting relative to said base in a third direction causes said rear portion of the rigid frame to move at least vertically upward relative to said base;

    said coupling system having an axial connection member secured to said top portion of the link, and mounted to pivot relative to said cheek plate; and

    a ring constrained to rotate with the axial connection member and having a first latch surface, so that said first latch surface is constrained to rotate with the link;

    said seat structure further comprising an anchoring element provided with a second latch surface and to which said seatbelt is directly secured;

    and wherein the anchoring element is mounted to pivot on said rigid frame about a second pivot axis distinct from the first axis, said anchoring element being adapted so that traction exerted by said seatbelt on the anchoring element along a seatbelt traction axis causes the anchoring element to pivot about the second axis in a second direction, from an unlocked position in which the second latch surface of said anchoring element is held at some distance away from the first latch surface of the coupling system by return means exerting forces in a first direction of rotation opposite to the second direction of rotation, and secondly to a locked position in which the second latch surface co-operates with the first latch surface to prevent the bottom portion of the link from pivoting in said third direction relative to said base.

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