Folding Box Protrusion Edge Reinforcement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing folding boxes are weak in bending and compression resistance, making them prone to deformation under load, and are difficult to clean due to their thin-wall structure and design, which can lead to safety hazards and reduced service life.
Innovation Solution
A folding box design featuring a base with protrusion edges having pockets and connecting parts with rotatable engaging parts, and side plates with limiting parts to prevent outward turning and disengagement, along with closed cavities for enhanced strength and cleaning efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If thin walls and reinforcing ribs are used to form the base structure, then the box can be lightweight and easy to manufacture, but the base becomes weak in bending and compression resistance, causing deformation under load
Solution Approach 1:
The base structure combines thin walls with integrated reinforcing ribs to create a composite structure that maintains lightweight properties while significantly improving bending and compression resistance. The ribs are formed as integral parts of the base, creating a synergistic structure where the thin walls and ribs work together to resist deformation under load.
Solution Approach 2:
The base incorporates curved or arched rib structures rather than straight rigid bars. These curved ribs provide superior structural efficiency by distributing loads more effectively and resisting bending forces, while maintaining the lightweight characteristic of the thin-wall construction.
2Strength
If the base is formed with molded non-closed cavities and grid ribs, then the structure can provide some reinforcement, but dirt and sewage accumulate in the cavities, making cleaning difficult and reducing hygiene
Solution Approach 1:
The design extracts and removes the problematic non-closed cavities from the base structure. Instead of having recessed cavity spaces that trap dirt and sewage, the base features a smoother surface profile where the reinforcing ribs are integrated without creating deep, hard-to-reach recesses, enabling easy cleaning while maintaining structural strength.
Solution Approach 2:
The base structure incorporates a controlled porous or textured surface design that prevents dirt and sewage accumulation. The surface geometry is optimized to allow fluids and contaminants to flow off easily rather than becoming trapped, combining cleaning ease with structural reinforcement.
3Device complexity
If a single layered thin wall structure is used at the hinge mounting position, then the base can be simple to manufacture, but the hinge connection becomes weak and the side plate deforms inward when loaded
Solution Approach 1:
The base structure implements local quality enhancement at the hinge mounting positions. While the overall base maintains simple thin-wall construction, the specific hinge mounting areas feature reinforced structures with integrated ribs and protrusion edges that provide localized strength and stability, preventing side plate deformation without complicating the entire base design.
4Device complexity
If the side plate is hinged to the protrusion edge of the base, then the folding mechanism can be simple, but the protrusion edge bends inward under load, causing the side plate to deform and the box to become unsafe
Solution Approach 1:
The protrusion edge at the hinge mounting position is designed with a curved or arched cross-section rather than a flat thin wall. This curved geometry provides superior resistance to inward bending forces while maintaining the simplicity of the folding hinge mechanism. The curved structure acts like an arch, distributing loads more effectively and preventing deformation.
Solution Approach 2:
The hinge connection area combines the thin-wall base material with integrated reinforcing ribs to create a composite structure. This composite design maintains the simple folding mechanism while providing the necessary resistance to inward bending forces through the combined structural properties of the wall and rib elements.
Data Source
Figure 1
Figure 2A~2C
Figure 3A~3C
AI summary
A folding box is disclosed. A base is provided with a plate-like body and two pairs of opposite protrusion edges surrounding the periphery of the plate-like body. The two pairs of opposite side plates are hinged to the protrusion edges of the base and are foldable relative to the base. Side plate hinging parts are arranged at the bottom of the side plate, and corresponding base hinging parts are arranged on the protrusion edge of the base, wherein the side plate hinging parts are hinged to the base hinging parts respectively, thus hinging the side plate to the base. At least one pair of the two pairs of opposite protrusion edges are provided with first closed cavities extending along the length direction of the protrusion edges, and/or the plate-like body is provided with second closed cavities, wherein the second closed cavities protrude from the main surface of the plate-like body. The folding box of present application is high in strength and easy to clean.