BOX HAVING FOLDING AND AUTOMATICALLY LOCKING SIDE WALLS Russian patent published in 2013 - IPC B65D6/18 

FIELD: packaging industry.

SUBSTANCE: folding box comprises a base (2) having a stationary part of the outer wall (18), located upwards from the base in the vertical direction (8), and the outer wall (6b) equipped with an axis mounted on the main part of the outer wall (6b). The guiding opening (54) is formed on the fixed part of the outer wall (18), in which the axis (50) is installed and which comprises a side openable section (54b), located mainly in the lateral direction (12) outwards from the stationary part of the outer wall (18) inwards, in which the axis (50) can be moved. The fixed part of the outer wall (18) comprises a contact surface (76). The cam (52) is mounted on the main section of the stationary part of the outer wall (6b) and comprises a cam contour, which is made with the ability of its interaction with the contact surface (76) when lifting the outer wall (6b). At that when the angle of impact (68) is exceeded the axis (50) moves inwards into the side openable section (54b). After exceeding the angle of impact (68) under the action of the axis (50) or the cam (52) the lower side (66) of the outer wall (6b) is pressed against the inner edge part (90) of the stationary part of the outer wall (18) with the first contact compression (pressing) force greater than the second contact compression (pressing) force by which the lower part (66) of the outer wall (6b) in a raised vertical position is pressed against the upper part of the stationary part of the outer wall (18) under the influence of the axis (50) or the cam (52).

EFFECT: increased operational reliability.

13 cl, 18 dwg