Folding Box With Tuck-In Flap And Slot Closure
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Solution Overview
Problem
Existing folding boxes used for packaging high-quality products face complexity in manufacturing due to the integration of magnetic or snap fasteners for closure, requiring intricate designs and increased material usage, which complicates production and increases costs.
Innovation Solution
A folding box design featuring a cover with four pivotably connected folding elements and a cuboid inner body with an insertion tab that fits into a slot between the base element and inner body, allowing for simple and cost-effective production by eliminating the need for complex closure elements, enabling easy unfolding and space-saving compactness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If magnetic elements or snap fasteners are used as closure elements, then the cover can be secured in the unfolded position, but the manufacturing process becomes complex and material requirements increase
Solution Approach 1:
The patent removes the complex magnetic elements or snap fasteners from the closure mechanism and replaces them with a simple tuck-in flap that inserts into a slot formed by the inner body and base element. This extraction of complex closure elements directly reduces manufacturing complexity while maintaining the cover securing function through the geometric interlocking of the flap and slot
Solution Approach 2:
The closure mechanism utilizes the structural components already present in the folding box (inner body and base element) to form the slot that receives the tuck-in flap. The system serves itself by using its own structural elements rather than requiring external closure components, thereby simplifying manufacturing while ensuring reliable cover securing
2Reliability
If magnetic elements or snap fasteners are used as closure elements, then the cover can be secured in the unfolded position, but the cover design requires larger area and more folding elements
Solution Approach 1:
The patent extracts the need for additional closure elements and replaces them with a minimal tuck-in flap structure. This reduces the quantity of material required for the cover while maintaining secure closure through the geometric interlocking mechanism of the flap inserting into the slot between the inner body and base element
3Ease of manufacture
If the folding box uses a simple design without complex closure elements, then manufacturing is simplified, but the cover may unfold accidentally without proper securing
Solution Approach 1:
The tuck-in flap is nested within the slot formed by the inner body and base element, creating a secure interlocking mechanism. This nesting geometry provides reliable cover stability through friction and geometric constraint while maintaining manufacturing simplicity, as the slot is formed by the existing structural components rather than requiring additional closure elements
Data Source
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AI summary
Folding box, comprising a cover (2) and an inner body (3), preferably cuboid in shape, wherein a) the foldable cover (2) consists of four folding elements arranged in a row and pivotably connected, namely a bottom element (4), a side element (5), a top element (6) and a further side element (7), b) the foldable inner body (3), which can be brought from a folded flat form into an unfolded form, consists of at least four side walls (14, 16), c) the inner body (3) is attached to the bottom element (4) of the cover (2), and in the closed position of the cover (2) its side elements (5, 7) run adjacent to side walls (14) of the inner body (3) and the top element (6) closes the open side of the inner body (3),d) a insertion tab (9) arranged on the free side of the terminal side element (7) can be inserted into an insertion slot (20) between the bottom element (4) and the inner body (3) to fix the cover (2) in the closed position.