Stackable Folding Box With Forked Creases to Prevent Slippage
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Solution Overview
Problem
Existing folding boxes with open tops require additional lids for stability when stacked, increasing manufacturing costs and material requirements, and the lids are often discarded improperly.
Innovation Solution
The folding creases at the upper open end of the box are forked, creating triangular areas that stabilize the box when stacked, eliminating the need for additional materials, such as corner reinforcements, by incorporating diagonal supports that prevent slippage without using extra corrugated cardboard.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a lid is added to enable stacking, then stacking stability is improved, but manufacturing cost and material usage increase
Solution Approach 1:
The side wall is segmented into multiple layers with the inner layer featuring forked folding creases that create diagonal corner supports. This segmentation allows the structure to provide stacking stability through the diagonal bracing effect without requiring an additional lid component.
Solution Approach 2:
The folding creases are forked to create diagonal elements at approximately 45-degree angles within the side wall structure. This introduces a diagonal dimension to the otherwise rectangular box structure, preventing horizontal slippage between stacked boxes without adding external components.
2Stability of the object's composition
If a lid is added to enable stacking, then stacking stability is improved, but manufacturing complexity increases
Solution Approach 1:
The stabilizing function previously requiring a separate lid component is merged into the side wall structure itself. The forked folding creases in the inner layer of the side wall create integral diagonal supports that provide stacking stability without requiring additional parts or assembly steps.
Solution Approach 2:
The side wall structure serves dual functions: it provides the structural boundary of the box and simultaneously provides the stacking stability through its forked folding creases. The structure is self-sufficient and does not require external components to enable stable stacking.
3Stability of the object's composition
If additional corner reinforcements are added to prevent slippage, then stacking stability is improved, but manufacturing cost increases
Solution Approach 1:
The side wall is constructed with an inner layer that is segmented by forked folding creases to create diagonal corner supports. This segmentation provides the anti-slippage function through the diagonal bracing effect while maintaining a relatively simple manufacturing process using standard corrugated cardboard layers.
Data Source
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AI summary
The invention relates to a folding box, in particular a sales tray, which is open at the top and in which an opening for removing goods is provided in one side wall (17, 18), extending from the upper open end of the folding box. The folding box has a base (11) and side walls (12; 13; 14, 15; 17, 18), which are separated from each other by folding creases (14', 15'; 17', 18') extending from the base (11) to the upper open end of the folding box. In order for this folding box to be stackable, the invention provides that the folding grooves (14', 15'; 17', 18') are forked in the area of the upper open end, so that an approximately flat area (14a, 15a; 17a, 18a) is present between adjacent side walls, so that when folding boxes are stacked, the folding box stacked above cannot slip into the folding box below, because these flat areas cut off the corners diagonally and the upper folding box rests on these "diagonals".