REUSABLE CONTAINER WITH COLLAPSIBLE WALLS Russian patent published in 2007 - IPC B65D6/18 B65D6/26 

FIELD: packing equipment, particularly reusable containers.

SUBSTANCE: container comprises bottom and side walls pivotally connected to container bottom. Side walls may be folded towards bottom in transport and storage empty container position. Side walls may be engaged with each other in erected container position. To provide side wall engagement container comprises locking device arranged in the first side wall and fixing grip of blocking latch connected to another side wall from adjacent container corner side. As side walls are erected locking device cooperates with fixing grip. Fixing extension of flocking latch projects inwards past inner side wall surface and has springing properties to provide resilient return force in blocking latch as latch is urged outwards under the action of rotary pressure lever.

EFFECT: increased side wall connection reliability and simplicity of side walls releasing.

18 cl, 12 dwg