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Vehicle seat

  • US 4,941,641 A
  • Filed: 03/13/1989
  • Issued: 07/17/1990
  • Est. Priority Date: 05/22/1987
  • Status: Expired due to Fees
First Claim
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1. In an air sprung vehicle seat comprising a base frame adapted to be mounted on a vehicle, a seat frame, scissors linkage means including first and second scissors members mounted on said base frame and operative for supporting said seat frame so that the vertical position thereof is adjustable relative to said base frame, air spring means adapted to be connected to a source of pressurized air and responsive to internal air pressure in said air spring means for adjusting the vertical position of said seat frame relative to said base frame, and locking mean actuatable for locking the vertical position of said seat frame relative to said base frame, the improvement comprising said locking means including a fixing element articulated to said scissors means and moving therewith during vertical movement of said seat frame relative to said base frame, said fixing element including a fixing section having a length which is at least as great as the length of the maximum vertical movement of said seat frame relative to said base frame, said locking means further including a fixing device for securing said fixing section in order to secure the relative position of said fixing element in said seat.

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