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Vehicle seat, especially for commercial vehicles

  • US 5,388,801 A
  • Filed: 09/14/1992
  • Issued: 02/14/1995
  • Est. Priority Date: 09/14/1991
  • Status: Expired due to Fees
First Claim
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1. A seat for vehicles, especially for commercial vehicles, having seat supporting means and a cushion support, said seat being capable of swinging and comprising:

  • a swinging frame including;

    a base part formed as a lower frame and supported by said seat supporting means and having a front and a rear and including a pair of substantially parallel opposedly mounted lower girders forming lower side girders of the lower frame,an upper part supporting said cushion support, said upper part formed as an upper frame and having a front and a rear and including a pair of substantially parallel opposedly mounted upper girders forming upper side girders of the upper frame,two scissor-like crosshead devices, one provided at each respective side of said swinging frame, each having a pivot axis transverse to said upper and lower side girders, said crosshead devices disposed between said lower base part and said upper part, each of said crosshead devices comprising a higher carrying capacity member formed by a pair of rocking levers, each rocking lever of said pair arranged parallel and adjacent to each other, and a lower carrying capacity member formed by a single rocking lever disposed between and pivotally attached to said pair of rocking levers of said higher carrying capacity member, each of said rocking levers having an upper end and a lower end, said upper ends of all said rocker levers being pivotally connected to said upper girders and said lower ends of all said rocking levers being pivotally connected to said lower girders.

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