Patent ID: 7086694
Filing Date: 2006-08-08
Classification: A47C

Abstract:
1. A folding chair with a safety device comprising: two folding links having a middle point, an upper end and a lower end; a U-shaped seat frame pivotally attached to the folding links and having a transverse seat rod having two ends, and two longitudinal seat rods formed respectively on and extending perpendicularly from the two ends of the transverse seat rod and pivotally attached to the middle points of the folding links, and each longitudinal seat rod having a distal end; a through hole formed transversely through the longitudinal seat rod near the distal end of the longitudinal seat rod and having an inside opening; two latches mounted respectively in the through holes which protrude from the inside openings; a seat mounted on the transverse seat rod and the longitudinal seat rods; a U-shaped back frame, pivotally attached to the folding links and having a transverse back rod having two ends, and two longitudinal back rods formed respectively on and extending perpendicularly from the two ends of the transverse back rod and pivotally attached to the upper end of the folding link and each longitudinal back rod having a distal end attached to the upper end of a folding link and abutting the longitudinal seat rod of the seat frame when the folding chair is opened; a back mounted on the transverse back rod and the longitudinal back rods; a U-shaped rear leg pivotally attached to the folding links and having a transverse rear rod having two ends, and two longitudinal rear rods formed respectively on and extending perpendicularly from the two ends of the transverse rear rod, attached pivotally to the lower end of the folding links, and each longitudinal rear rod having a distal end; a U-shaped front leg pivotally attached to the seat frame and having a transverse front rod having two ends, and two longitudinal front rods formed respectively on and extending perpendicularly from the two ends of the transverse front rod and attached pivotally to the longitudinal seat rods of the seat frame, and each longitudinal front rod having a distal end; two armrests pivotally attached respectively to the distal ends of the longitudinal rear rods of the rear leg and the distal ends of the longitudinal front rods of the front leg; two hollow locking sleeves rotatably mounted respectively on the distal ends of the longitudinal seat rods of the seat frame, and each locking sleeve having a body mounted around the distal end of a corresponding one of the longitudinal seat rods of the seat frame and having a closed end and an open end; a tongue formed on and protruding longitudinally from the open end of the body and selectively abutting a corresponding one of the longitudinal back rods of the back frame; and a slot formed transversely in the body, corresponding to the through hole in the longitudinal seat rod of the seat frame and having two ends.