Patent ID: 6112757
Filing Date: 2000-09-05
Classification: E04H

Abstract:
A leg assembly for a canopy, said leg assembly comprising:a plurality of upright leg members, each of which has an upper end adapted for mounting of the canopy thereon, and a lower end adapted to be disposed on a ground surface for supporting the canopy above the ground surface;plurality of tubular sleeves sleeved slidably and respectively on said leg members; anda plurality of connecting units extending between adjacent pairs of said leg members, each of said connecting units including at least two linking units and a pivot unit interconnecting said linking units;each of said linking units including:a first linking rod that includes a lower segment, an upper segment and an intermediate segment interconnecting said upper and lower segments, said intermediate segment including a parallel pair of elongated linking plates which are spaced-apart from one another and which have opposite first and second end sections, said lower segment having a lower end mounted pivotally on an adjacent one of said tubular sleeves, and an upper end connected to said first end sections of said linking plates, said upper segment having a lower end connected to said second end sections of said linking plates, and an upper end; anda second linking rod having an upper end mounted pivotally on said upper end of an adjacent one of said leg members, a lower end, and an intermediate portion between said upper and lower ends, said intermediate portion of said second linking rod extending between said linking plates of said intermediate segment of said first linking rod and being pivoted to said linking plates about a horizontal pivot axis which is disposed between said first and second end sections;said pivot unit including an upper pivot connector which is connected pivotally to said upper ends of said upper segments of said first linking rods of said linking units, and a lower pivot connector which is connected pivotally to said lower ends of said second linking rods of said linking units;said first and second linking rods of each of said linking units being movable between an unfolded position, in which said first and second linking rods of each of said linking units cooperatively form an X-shaped formation, and a folded position, in which said tubular sleeves are slid downwardly toward said lower ends of said leg members and in which said first and second linking rods are disposed adjacent to one another;said second linking rods and said upper and lower segments of said first linking rods of said linking units of each of said connecting units being disposed on a common vertical plane.