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Vehicle seat

  • US 6,033,018 A
  • Filed: 01/23/1997
  • Issued: 03/07/2000
  • Est. Priority Date: 01/29/1996
  • Status: Expired due to Fees
First Claim
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1. A vehicle seat for helping to protect an occupant of said vehicle seat in a rear impact collision, said vehicle seat comprising:

  • a backrest with a separate backrest part;

    a headrest integrated in said backrest;

    a pivot pin extending horizontally in said backrest for pivotally attaching said headrest to said backrest,said separate backrest part and said headrest constituting two arms of a two-armed lever pivotally mounted about an axis,said two-armed lever being mounted to said backrest such that said two-armed lever is pivotable about said axis to move said headrest in a forward direction toward a head of the occupant of said vehicle seat upon a force acting on said backrest part due to a rear impact collision; and

    a bearing for supporting rotation of said pivot pin, said bearing having means for producing an interlocking connection so that, in case of a radial loading above a predetermined radial load, pivoting of said headrest is prevented.

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