Fiber Molded Body Sidewall Profile for Easy Unstacking
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Solution Overview
Problem
Molded parts made of fibrous material face difficulties in being stacked and unstacked easily without damage due to strong adhesion and friction between fibers, leading to increased force requirements and potential damage.
Innovation Solution
A three-dimensional shaped body with a circumferential side wall featuring a degressive profile from the edge region to the bottom region, reducing contact area by varying cross-sections and incorporating undercuts and stacking shoulders to minimize friction and adhesion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If molded parts made of fibrous material are stacked to reduce transport space, then storage efficiency is improved, but the fibrous material causes strong adhesion and friction at contact points, requiring considerable force for unstacking and potentially causing damage
Solution Approach 1:
The side wall of the molded part features a degressive profile where the cross-section decreases from the edge region toward the bottom region. This curved, tapered geometry reduces the contact area between stacked molded parts, minimizing friction and adhesion forces at the contact zones, thereby enabling easy unstacking while maintaining storage efficiency
2Manufacturing precision
If molded parts are designed with identical dimensions for uniformity, then manufacturing consistency is improved, but the large contact surface area between identical parts increases friction and adhesion, making stacking and unstacking difficult
Solution Approach 1:
While maintaining overall dimensional consistency for manufacturing uniformity, the invention introduces a local geometric variation through the degressive side wall profile. This localized change in cross-sectional area reduces the contact surface area at critical zones, thereby reducing friction and adhesion without compromising the overall uniformity and interchangeability of the molded parts
Data Source
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AI summary
A three-dimensional shaped body (10) made of fibrous material and a method for producing a three-dimensional shaped body (10) made of fibrous material are described, wherein the shaped body (10) has a circumferential side wall (14) that surrounds an interior of the shaped body (10), wherein the side wall (14) has a degressive profile at least section by section from an edge region (16) to a bottom region, wherein the cross-section of the side wall (14) in the bottom region is smaller than the cross-section in the edge region (16).