cardboard box

Abstract

We provide a cardboard box that is easy to assemble while preventing the folded lid from easily opening up again. [Solution] The paper box 1A, which has a bottom and sides rising from the bottom, comprises two lid surfaces 51 connected to opposing parts of the sides, and a connecting surface 52 connected to the sides and connecting the two lid surfaces. The paper box is configured so that the lid surfaces can close the opening surrounded by the sides by folding the connecting surface relative to the sides and folding along the fold lines within the connecting surface, and a rebound reducing portion 54 is provided along the fold lines to reduce the restoring force that causes the connecting surface folded along the fold lines 53 to return to its state before folding.

Claims

1. A cardboard box having a bottom surface and sides that rise from the bottom surface, Two lid surfaces connected to opposing parts of the aforementioned side, A connecting surface that is connected to the aforementioned side surface and connects the two lid surfaces, Equipped with, The lid surface is configured to close the opening surrounded by the side surface by folding the connecting surface relative to the side surface and along the fold line within the connecting surface. A rebound reducing portion is provided along the fold line to reduce the restoring force that causes the connecting surface, which has been folded along the fold line, to return to its original state before folding. paper box.

2. The rebound reduction portion is a hole that penetrates the connecting surface. The paper box according to claim 1.

3. The rebound reduction portion is a notch that penetrates the connecting surface. The paper box according to claim 1.

4. The two lid surfaces have interlocking grooves and protrusions on their opposing edges. The paper box according to claim 1.

5. The dimensions of the two lid surfaces in the opposing direction when the aforementioned protrusions and recesses are interlocked are greater than the dimensions of the side surfaces in the opposing direction. The paper box according to claim 4.

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