초록 ▼

A collapsible frame structure 1 for a rectangular retaining wall on a pallet 6 has an open top and an open bottom formed by side walls 3 and end walls 2. The end walls 2 are hinged at 4 to the side walls 3 and each end wall comprises two wall parts 2a, 2b which are pivotally connected by hinge membe

A collapsible frame structure 1 for a rectangular retaining wall on a pallet 6 has an open top and an open bottom formed by side walls 3 and end walls 2. The end walls 2 are hinged at 4 to the side walls 3 and each end wall comprises two wall parts 2a, 2b which are pivotally connected by hinge members 12. The end wall parts 2a, 2b are displaceable inwardly between the side walls 3 so that the side walls and end wall parts are located in parallel planes to form a flat pack. The hinge members 12 are rigid and each has two pivotal connections, one on each wall part 2a, 2b so that when the structure is collapsed the hinge members accommodate for the thickness of the wall parts. When the structure is erect, flanges on the wall parts 2a, 2b abut the respective hinge members at positions thereof between the pivotal connections to restrain the wall parts from displacement outwardly from the rectangular configuration. Offset upwardly and downwardly extending flanges 8, 16, 17 serve to restrain the structure from horizontal displacement over a base 6 on which it is mounted and can retain two similar structures from horizontal displacement relative to each other when stacked as a column one on top of the other. The walls and hinge members are preferably moulded in plastics.

대표청구항 ▼

A frame structure made of plastic material and erectable to have an open top and an open bottom and adapted to be mounted on a base to form an upstanding retaining wall of substantially rectangular configuration and collapsible to form a substantially flat compact pack, said structure comprising a p

A frame structure made of plastic material and erectable to have an open top and an open bottom and adapted to be mounted on a base to form an upstanding retaining wall of substantially rectangular configuration and collapsible to form a substantially flat compact pack, said structure comprising a pair of opposed and walls of substantial thickness hingedly connected to respective ones of a pair of opposed side walls, each of said end wall comprises two wall parts pivotally connected together for collapsing the structure, said interconnected wall parts can be displaced inwardly from the erect condition to be disposed in substantially parallel and overlying relationship between the opposed side walls, the two wall parts of each end wall being pivotally connected together by a rigid hinge member which is accommodated in the thickness of its respective end wall when the structure is in an erect condition and extends substantially perpendicularly between the wall parts which it interconnects when the structure is in collapsed condition to accommodate for the thickness of the wall parts, wherein each said hinge member comprises a web interconnecting two pivot portions, said pivot portions being pivotally connected, one each to adjacent end regions of the wall parts interconnected by the hinge member, each said end region of the end wall parts including an abutment disposed such that with the structure erect said web externally bridges the abutments of the respective end wall parts and wherein said abutments engage the web to restrain the end wall parts from excessive displacement outwardly from the rectangular configuration.