Collapsible housing frame

摘要

The collapsible housing frame has a pair of side frame boards opposed to each other, and connecting mechanisms which connect both the opposed ends of the side frame boards. Both ends of the side frame boards are connected to the connecting mechanisms through first hinges. Each of the connecting mechanisms is formed to be collapsible at a second hinge of the connecting mechanism, and a lock-unlock system to lock and unlock the hinge is provided at the second hinge.