Folding chair with movable backrest-supporting tubes

摘要

A folding chair includes two rear legs having a predetermined shortened length and could therefore be collapsed into a rectangular body having a reduced overall length to occupy an even small space. A backrest is supported on two supporting tubes, which have lower insertion sections for inserting into upper bores of the rear legs. Push buttons are mounted in the supporting tubes and are normally pushed outward by elastic elements to engage with holes provided on the supporting tubes and the rear legs and thereby hold them together. When the push buttons are pushed radially inward, the supporting tubes could be detached from or retracted into the rear legs for the folding chair to have an even reduced collapse volume.