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Body-weight adjusting device of a seat suspension

  • US 4,624,437 A
  • Filed: 01/04/1985
  • Issued: 11/25/1986
  • Est. Priority Date: 01/08/1985
  • Status: Expired due to Fees
First Claim
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1. A body-weight adjusting device for a seat suspension which comprises:

  • (a) a pair of X-shaped links constituting said seat suspension;

    (b) a rotary shaft extending in a transverse direction of said pair of X-shaped links;

    (c) an operation lever connected to one end of said rotary shaft in such manner that it is disposed in a direction substantially perpendicularly to the axis of said rotary shaft;

    (d) at least one pinion gear fixed on said rotary shaft for integral rotation therewith;

    (e) at least one rack gear, rotatably fixed to mesh with said pinion gear;

    (f) at least one tension spring operatively connected at one end to said X-shaped links and latched at the other end to said at least one rack gear whereby said rotary shaft rotated by operation of said operation lever drives said rack gear and, consequently, said tension spring, to adjust said X-shaped links.

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