Wood Polymer Composite Cargo Support
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Solution Overview
Problem
Conventional cargo supports made of waste wood or plastic materials are prone to breaking under heavy loads and fail to meet various standard requirements, leading to inefficiencies in load handling and production costs.
Innovation Solution
A cargo support is developed using a wood polymer/plastic composite material molded with wood flake chips, which includes a compound of 10 to 90 parts by weight of wood flake chips and 10 to 50 parts by weight of polymer resin, optionally incorporating long fibers, additives, and recycled materials, processed through extrusion, injection, or press molding to achieve high strength and reduced thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If waste wood material is used for cargo support, then production cost is reduced, but strength and reliability deteriorate causing easy breakage under heavy loads
Solution Approach 1:
The patent applies composite materials by combining wood flake chips with polymer resin to create a wood polymer/plastic composite material. This composite structure integrates the low-cost advantage of wood waste with the strength and durability of polymer materials, resolving the contradiction between production cost and strength. The composite material maintains structural integrity under heavy loads while utilizing inexpensive wood waste as a primary component.
2Strength
If plastic material is used for cargo support, then strength is improved, but adaptability to standard requirements deteriorates
Solution Approach 1:
The patent applies local quality by incorporating long fibers (5-20mm in length) into specific regions of the composite material to enhance strength in critical load-bearing areas. This allows the cargo support to meet various standard requirements for strength and durability while maintaining the flexibility to adapt to different application standards and specifications.
3Ease of manufacture
If wood flour is used in composite material, then manufacturing ease is improved, but strength deteriorates compared to wood flake chips
Solution Approach 1:
The patent applies parameter changes by modifying the physical form of wood material from fine wood flour to larger wood flake chips (0.3-18 cm in length). This parameter change in particle size and shape fundamentally alters the mechanical properties of the composite, providing enhanced strength and structural integrity while still maintaining manufacturability through standard molding processes.
Data Source
AI summary
A cargo support includes an upper panel having a freight loaded on; a lower panel associated with the upper panel via a plurality of spacers to have the upper panel separated from the ground at a predetermined height; and a plurality of insert openings, each provided between the adjacent spacers associated with each other in the horizontal direction and separated from each other at a predetermined distance to have a fork inserted thereinto, where the upper and lower panels includes a wood polymer/plastic composite material prepared by using wood flake chips as a principal ingredient.