Patent ID: 6981605
Filing Date: 2006-01-03
Classification: B65D

Abstract:
1. A returnable case, comprising a bottom member, left and right side members provided foldable inward in regard to the bottom member, and front and back side members detachable in regard to the bottom member and formed two-foldable taking the longitudinal direction as a boundary, in which contact ends of said left and right side members and said front and back side members are disposed enabling to look and unlock by a lock member, wherein said front and back side members are formed foldable inward by pivotally supporting respective lower ends with the bottom member, wherein said front and back side members have a pair of engagement bars attached to the lower end, and when the engagement bars are fitted to a pair of supporting reception members provided on said bottom member, the front and back side members can rotate by taking the supporting reception member as a fulcrum, and when the engagement bars are removed from the supporting reception member, the front and back side members can be extracted from the bottom member, and wherein for the pair of engagement bars attached to the lower ends of said front and back side members, the length of any one of engagement bars is set shorter than the length of the other engagement bar.