L-Shaped Packaging Cutouts with Chamfered Corners
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Solution Overview
Problem
Conventional retail ready packaging made of semi-rigid materials, such as corrugated cardboard, is costly and lacks sufficient mechanical resistance, making it unsuitable for modern logistics and automatic processing.
Innovation Solution
A packaging design featuring two detachable elements formed from cutouts of sheet-form or corrugated card material, with chamfered corners and lateral tabs that connect via fold lines to form an L-shape, providing enhanced mechanical resistance and ease of assembly using a flat forming machine or mandrel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional retail ready packaging is made from corrugated cardboard with pre-cuts and trays, then the packaging can be easily formed and assembled, but the mechanical resistance is insufficient and material cost is high
Solution Approach 1:
The packaging is divided into two separate detachable elements (base and lid) made from L-shaped cutouts. Each element comprises multiple flaps (first and second main flaps, lateral tabs) that are folded and assembled together, allowing the structure to achieve high mechanical resistance through interlocking geometry rather than relying on thick material or complex forming processes.
2Ease of manufacture
If packaging uses significant paper grade and pre-cut designs, then assembly is simplified, but material cost increases and mechanical resistance decreases
Solution Approach 1:
The L-shaped cutouts are pre-cut with chamfered corners and predetermined fold lines during manufacturing, enabling rapid assembly without requiring complex forming operations. The lateral tabs and flaps are pre-positioned to interlock automatically during assembly, simplifying the manufacturing process while using standard material grades.
3Productivity
If packaging is designed for automatic palletising and processing, then logistics efficiency improves, but packaging complexity and material requirements increase
Solution Approach 1:
The packaging structure is designed to be self-assembling through its L-shaped cutouts with predetermined fold lines and interlocking lateral tabs. The geometry enables automatic forming and assembly without requiring complex machinery or multiple processing steps, making it suitable for high-speed automatic palletising and logistics handling while maintaining structural integrity.
Data Source
AI summary
A packaging comprising two detachable elements respectively formed from cutouts of sheet-form card or corrugated card material, a first element forming the base of the packaging and a second element forming the lid of the packaging, the cutouts of the first and second elements comprising two main flaps, a first main flap forming the bottom of the packaging and the top of the packaging respectively, and a second main flap forming the side walls of the packaging, the flaps being connected by a first fold line directly or by a secondary flap, and a set of lateral tabs arranged on either side of at least one of the main flaps and connected to the main flaps by second fold lines perpendicular to the first fold line so that the elements exhibit the overall shape of a letter L; the packaging being notable in that the first main flap of the cutouts of the first and second elements is of quadrilateral shape and the four corners thereof are chamfered.