Corner construction for packaging tray for e.g. fruit, has inner panel provided with inside fold to form side wall with flap

摘要

At least one inside fold line (11) is provided in the inner panel (7) forming a first side wall (4) with flap (6) and extends substantially parallel to the outside fold line (10) in the opposite direction to the latter from the flap. The first side wall is secured to a second side wall (5) via the flap, which is formed by at least one inner panel and at least one outer panel (8) which are secured together. The outside fold lie is provided in the outer panel and extends in a substantially vertical direction to form the outside edge of the corner. Independent claims are also included for the following: (a) Tray with a base and at least three side walls joined together via the above corner constructions; (b) Method for forming the corner construction; and (c) Method for making the tray. The corner construction is formed by providing a first substantially rectangular side wall panel with at least one length direction fold line (9), providing at least one outside fold line in the transverse direction between the length direction fold line and a first length edge in order to form a flap and providing an inside fold line in the transverse direction between the length direction fold line and a second length edge. The piece is then folded in two along the length direction fold line and the flap is folded about the spaced apart inside and outside fold lines. The tray has a substantially rectangular base connected to two substantially rectangular first side wall panels via base folds along two opposing first side edges and an incision is cut into each end of the base fold to form two rectangular second side wall panels, which are then folded upwards, after which the first side wall panels are turned back to form two corner constructions and the four flaps in each of the latter are connected to the corresponding four ends of the two second side wall panels.