Back to results
US 4,482,184 AGranted
Portable folding chair
OwnerChristopher D. Minceyinventor
Life of this patent
Estimating the term…
Abstract
Chair support pivotably carries parallelogramic support arms which are pivoted to seat rails. One of the support arms continues above the seat rail to become an arm support and adjacent the top thereof carries one end of a telescoping unit. The other end of the telescoping unit is pivoted to the seat rail. The telescoping unit is of such length that, when the support arms are in the erected position, the telescoping unit bottoms out to become a rigid compression member and provide a firm, erected position.
Claims9
A portable folding chair comprising:
- a support;
- front and rear U-shaped chair supports each having a substantially straight cross piece and upwardly directed arms, said substantially straight cross pieces being pivotably mounted on said support and pivoting on an axis substantially parallel to each other;
- left and right seat rails each pivoted to one upwardly extending arm of each of said front and rear U-shaped chair supports so that said support, said chair supports and said seat rails substantially form a pivoting parallelogram;
- an arm support extending upward from said front chair support and firmly connected thereto;
- inner and outer telescoping members, one of said telescoping members being pivoted to said arm support and the other of said telescoping members being pivoted to the seat rail on the same side of said chair, said telescoping members being of such length as to permit said arm supports to pivot forward to close the parallelogram in the forward, folded direction and to stop motion of the parallelogram in the chair-erected position wherein said seat rails are spaced away from said support.
2 more elements
Dependencies are inferred from the claim text.