Box with foldable side walls and locking mechanism with...

B - Operations – Transporting – 65 – D

Patent

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Details

B65D 6/16 (2006.01) B65D 6/18 (2006.01)

Patent

CA 2758769

A foldable box (1) comprises a floor (2) and two longitudinal side (6a, 6b) and transverse side (4a, 4b) exterior walls each lying opposite in pairs and foldable with respect to the floor (2). Each of the longitudinal side exterior walls (6a, 6b) comprises a protrusion (22) at least at a transverse side end extending in the direction of the transverse side exterior walls (4a, 4b) in the upfolded state, which limits the foldability of the transverse side exterior walls (4a, 4b) to the outside. Each of the transverse side exterior walls (4a, 4b) includes a spring-pretensioned locking mechanism arranged at the outside of the transverse side exterior wall (4a, 4b) which in the upfolded state comprises a snap-in element (100) movable in a vertical direction (8) with respect to the surface of the floor, which may be latched with the protrusion (22) of the longitudinal side exterior walls (6a, 6b). Here, the protrusion (22) and/or the snap-in element (100) comprises contact surfaces (110, 112), which are inclined with respect to the vertical direction (8) in the upfolded state such that the locking mechanism opens against the spring pretensioning when exceeding a predetermined force directed inwards and acting upon the transverse side exterior wall (4b).

Caisse pliable (1) qui comporte un fond (2) et deux paires de parois latérales opposées longitudinales (6a, 6b) et transversales (4a, 4b). Chacune des parois latérales longitudinales (6a, 6b) comporte au niveau d'au moins une extrémité transversale un élément saillant (22) qui s'étend en direction des parois latérales transversales (4a, 4b) lorsque les parois latérales longitudinales sont relevées et qui limite vers l'extérieur le basculement des parois latérales transversales (4a, 4b). Chacune des parois latérales transversales (4a, 4b) comporte un mécanisme de verrouillage précontraint par ressort et situé sur la face externe de la paroi latérale transversale (4a, 4b), qui comprend, lorsque la paroi est relevée, un élément d'encliquetage (100) mobile dans une direction (8) verticale par rapport à la surface du fond (2) et pouvant s'encliqueter avec l'élément saillant (22) de la paroi latérale longitudinale (6a, 6b). L'élément saillant (22) et/ou l'élément d'encliquetage (100) comportent des surfaces de contact (110, 112) qui sont inclinées par rapport à la direction verticale (8,) lorsque les parois sont relevées, de manière telle que le mécanisme de verrouillage s'ouvre en cas de dépassement d'une force prédéfinie orientée vers l'intérieur et s'exerçant sur la paroi latérale transversale (4b) à l'encontre de la précontrainte par ressort dudit mécanisme.

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