Patent ID: 6866160
Filing Date: 2005-03-15
Classification: B65D

Abstract:
1. A folding structure for a foldable container, consisting of a base platform, bottom side rails ( 1 ) disposed at both sides of the base platform, and corner posts ( 2 ) disposed at the ends of the bottom side rails ( 1 ); the corner posts ( 2 ) are pivotally attached to the bottom side rails ( 1 ) via pins ( 7 ), wherein the sides of the corner posts ( 2 ) are provided with corner post locking devices which can hold the corner posts in an upright position or a folded down position; wherein the corner post locking device consists of inner plates ( 1 ′) disposed on both sides of the ends of the bottom side rails ( 1 ) and attached to the bottom side rails ( 1 ), outer plates ( 2 ′) disposed on both sides of the lower ends of the corner posts ( 2 ) and attached to the corner posts ( 2 ) which correspond to the inner plates ( 1 ′); wherein the inner plates ( 1 ′) are provided with inner locking apertures; and wherein the outer plates ( 2 ′) are provided with outer locking apertures ( 8 ) which correspond to the inner locking apertures when the corner posts ( 2 ) are in a upright position; and threaded taper pins are further provided which engage with the inner and outer locking apertures correspondingly, wherein the cross section of the corner post ( 2 ) is U-shaped, with the opening of the U-shaped cross section toward to the bottom side rail, and the inner size of the cross section matches with the outer size of the bottom side rail ( 1 ), the corresponding section of the bottom side rail ( 1 ) is in the U-shaped groove of the corner post ( 2 ) when the corner post ( 2 ) is in a folded down position toward the bottom side rail ( 1 ).