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Height adjustment device for a vehicle seat

  • US 8,764,111 B2
  • Filed: 06/17/2010
  • Issued: 07/01/2014
  • Est. Priority Date: 06/20/2009
  • Status: Expired due to Fees
First Claim
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1. A height adjustment device for a vehicle seat, comprising:

  • an adjustment parallelogram consisting essentially ofa seat frame part;

    an upper rail; and

    lateral links connecting the seat frame part and the upper rail,a spindle drive configured to adjust the adjustment parallelogram such that a distance between the seat frame part and the upper rail is changed by changing a length of the spindle drive,wherein the spindle drive is coupled between two obliquely opposing corners of the adjustment parallelogram in such a manner that a force introduced in an upper region of the adjustment parallelogram is transmitted to the upper rail, and the spindle drive is configured to reinforce the adjustment parallelogram, and the spindle drive is configured to bear high tensile loads so that it withstands forces occurring during an accident.

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