Patent ID: 8327776
Filing Date: 2012-12-11
Classification: B29C,B29L,B65D

Abstract:
1. In a four-way pallet which serves as a bottom of a transport container, the improvement comprising the pallet having a hollow double-walled structure formed by blow molding and comprising: a first wall on which a cargo is placed; a second wall spaced apart from the first wall by a predetermined distance; an inner rib that connects the first wall and the second wall; and a plurality of legs formed at each side of the pallet at a peripheral edge of a bottom surface thereof, wherein the inner rib is a solid inner rib formed by continuously abutting and integrating an end surface of a first inner rib projecting from the first wall toward a hollow portion and formed by extending a part of the first wall towards the second wall and an end surface of a second inner rib projecting from the second wall toward the hollow portion and formed by extending a part of the second wall towards the first wall, a plurality of the inner ribs are arranged along a position into which a fork of a forklift is inserted and in directions perpendicular to one another and are formed to intersect one another in a cross shape via an intersection portion, wall folding lines in a continuously linear shape are formed on the surfaces of the first wall and second wall in a cross shape with the base of the intersection portion as an intersection, a longitudinal blade trace, a cross blade trace, and a transverse blade trace serving as shallow recesses are formed on a surface of the first wall such that the positions of the wall folding lines sink on the bottoms of the blade traces, a void portion communicating with the hollow portion is formed in the boundary between the first inner rib and the second inner rib and in the vicinity of the intersection portion, and a mounting groove in which a sleeve forming a sidewall of the transport container is fitted is formed around the pallet.