Pulp Mold Cushioning Material Edge Design
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Solution Overview
Problem
Conventional pulp mold cushioning materials with flanges at their edges require larger accommodating boxes, leading to reduced transport efficiency and potential for excessive force between the material and goods, necessitating a solution that enhances efficiency while maintaining rigidity.
Innovation Solution
The proposed pulp mold cushioning material design features main walls with projecting portions that increase internal support without flanges at the edges, allowing for reduced box size and enhanced transport efficiency while preventing excessive force transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a flange is provided at the edge of the cushioning material to secure rigidity, then the rigidity of the cushioning material is improved, but the size of the accommodating box must be enlarged, leading to reduced transport efficiency
Solution Approach 1:
The patent removes the flange structure from the cushioning material edges, extracting the unnecessary outward-projecting portion while retaining the essential cushioning function. This elimination of the flange allows the use of smaller accommodating boxes, thereby improving transport efficiency without compromising the protective function.
Solution Approach 2:
Instead of extending the cushioning material outward in the horizontal dimension (flange), the patent uses vertical dimension (inner wall portions projecting inward) to achieve structural support. The inner wall portions project into the accommodating space to provide rigidity, replacing the horizontal flange extension with a vertical projection approach.
2Strength
If a flange is provided at the edge of the cushioning material, then the rigidity is improved, but a large force may act between the goods and the cushioning material
Solution Approach 1:
The patent applies different structural characteristics to different parts of the cushioning material. The inner wall portions are designed to project inward to provide localized support and rigidity where needed, while the edges are made smooth without flanges to minimize force concentration. This localized structural optimization reduces excessive force transmission between goods and the cushioning material.
Solution Approach 2:
The patent transitions from horizontal flange extension to vertical inner wall projection to achieve structural support. This dimensional change allows the cushioning material to maintain rigidity through vertical structure while having smooth horizontal edges that reduce force concentration and prevent excessive force acting on the goods.
Data Source
AI summary
A pulp mold cushioning material (1) has a plurality of main walls (10A, 10B, 20A, 20B) which define an accommodating space for accommodating inside thereof a body to be accommodated and which each have an opening that opens in a first direction. The plurality of main walls include a first main wall, the first main wall includes a first outer wall portion (13) and a first inner wall portion (11, 12) that projects more to inside of the accommodating space than the first outer wall portion, the first outer wall portion and the first inner wall portion being aligned in a second direction orthogonal to the first direction, the first main wall has an edge portion extending in the second direction, at an end portion of the first main wall in the first direction, and the first main wall does not have a flange at the edge portion.