Single-Sheet Packaging Member With Insertion-Locked Walls
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Solution Overview
Problem
Existing packaging members made of cardboard sheets require complex assembly and disassembly processes, leading to reduced workability and increased difficulty in handling and discarding.
Innovation Solution
A packaging member formed by folding a single cardboard sheet into a containing area with specific wall and holding portions, utilizing insertion pieces and slits to maintain structural integrity and facilitate easy assembly and disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If multiple cardboard parts are combined to form the packaging member, then the structural integrity is improved, but the assembly and disassembly workability deteriorates
Solution Approach 1:
The patent merges multiple separate cardboard parts into a single integrated packaging member formed by folding one continuous sheet. The wall portions are connected to the bottom portion and to each other through folded edges, creating a unified structure that maintains integrity while eliminating complex assembly operations.
Solution Approach 2:
The single cardboard sheet is segmented into functional regions (bottom portion, wall portions, holding portions) through folding lines. This segmentation allows the structure to be formed from one piece while maintaining the organizational benefits of modular design, with each section serving a specific function.
2Stability of the object's composition
If multiple parts are used in the packaging member, then the structural stability is improved, but the discarding process becomes troublesome
Solution Approach 1:
By combining all components into a single folded sheet structure, the packaging member can be discarded as one unit rather than requiring separation and bundling of multiple parts. The unified structure simplifies the disposal process while maintaining stability during use.
3Volume of moving object
If the wall portions are folded inward into polygonal-tube shape, then the containing area is formed, but the assembly complexity increases
Solution Approach 1:
The cardboard sheet is pre-folded into the polygonal-tube shape of the wall portions during the formation process. The folding lines are pre-marked and the geometry is pre-configured, so that when the sheet is assembled, the wall portions automatically form the required containing shape without complex assembly steps.
Solution Approach 2:
The wall portions are designed with folded edges that can dynamically adjust to form the polygonal-tube shape. The folding mechanism allows the rigid cardboard to be formed into the required three-dimensional structure, combining structural stability with formation flexibility.
Data Source
AI summary
A packaging member (100) has a pair of holding portions (230) folded from opposite edges of each of a pair of first wall portions (210); the pair of holding portions (230) have an opposed portion (230a) opposed to a second wall portion (220), and an insertion piece (231); the second wall portion (220) has a wall-portion slit (221); and by inserting the insertion piece (231) in the wall-portion slit (221), the first wall portions (210) and the second wall portion (220) are held in a standing state.