Method and device for forming, closing and reciprocally fastening the flaps of a box such as an American cardboard box
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 12, 1991
Grant Date -
N/A
app pub date -
Oct 2, 1990
filing date -
Oct 2, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Method for forming, closing and fastening the flaps of a box, comprising the stages in which the internal flaps (5) are brought into their final position, glue (19) is deposited on fastening zones of the flaps (5, 6); the external flaps (6) are brought into their final position; when the glued fastening zones are in reciprocal contact, a force is exerted on the two pairs of flaps (5, 6) which is appropriate to stress them towards one another and to maintain the fixed contact between the reciprocal fastening zones for the period required for the appropriate setting of the glue, characterized in that the pair of external flaps (6) are locked in pivoting in their final position and the pair of internal flaps (5) are stressed, by suction, from the outside of the box (1), through the slot-shaped passage (20) limited by the two opposite free edges (11) of the pair of external flaps (6).
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