Portable folding chair with adjustable legs

Abstract

A folding quad-style chair has a folding frame including four legs each having a leg tube, and a fabric seating section attached to the frame. An extension is telescopically extendable from each leg tube. A locking device is provided with each extension for releasably locking each extension into a fixed position. The locking device may be designed as a plurality of spaced apart holes and with the locking device including a spring urging a locking pin into one of the holes. A foot plate may be pivotally attached to a lower end of each extension. Since the length of each leg can be individually adjusted, the chair may be configured to provide a level seating surface even on a hillside, incline, or other sloped or irregular surface. All four legs may be fully extended to provide an elevated seating surface.

Description

BACKGROUND OF THE INVENTION[0001]Portable folding chairs have become increasingly popular for use at the beach and parks, at sporting events, for picnics, camping, and similar uses. Many of these chairs are lightweight and fold into a compact size, with the folded chair conveniently carried in a carrying bag. The so-called quad chair design has been in widespread use for several years. The quad chair has a frame typically formed from diagonal poles pivotally attached to each other at the front, back, left and right sides of the frame. This allows the quad chair frame to fold and unfold both in the front to back direction and in the side to side direction. As a result, when folded, the quad chair is highly compact.[0002]Although quad chairs as a whole offer many advantages, a typically quad has four fixed-length legs. Consequently, the height of the seating surface is fixed, making the chair not well adapted for seating at a bar or cocktail tables, or for other uses where a higher se...

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