U-Board Packaging Handle Reinforcement
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Solution Overview
Problem
Conventional U-board packaging requires additional handles made from materials like paperboard, wood, or metal, which are time-consuming and costly to attach, and may detach during handling.
Innovation Solution
A U-board packaging container with a heavy-duty integrated handle formed by creating hand openings in a reinforced bottom wall made from alternating strips of paper and/or paperboard with a reinforcing material, enhancing strength and reducing material usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If additional handles are attached to the U-board using strapping or taping, then the U-board can be handled and carried, but the process requires additional time and materials, and the handles may detach during handling
Solution Approach 1:
The handle is merged with the U-board by forming it as an integrated part of the bottom wall through alternating layers of paperboard and reinforcing material. This eliminates the need for separate handles and their attachment processes, resolving the contradiction by combining two previously separate components into one unified structure that provides both handling capability and structural integrity.
Solution Approach 2:
The handle is pre-formed as part of the bottom wall structure during the manufacturing process, before the U-board is assembled or used. The alternating layers of paperboard and reinforcing material are laminated together to create the handle structure in advance, eliminating the need for time-consuming field attachment and ensuring the handle is already integrated and secure.
2Ease of operation
If separate handles made from paperboard, wood, or metal are used, then the U-board can be carried, but additional materials and costs are required
Solution Approach 1:
The handle function is merged with the bottom wall structure of the U-board, eliminating the need for separate handle materials. The bottom wall itself is constructed with alternating layers of paperboard and reinforcing material to provide the necessary handling capability, thereby reducing the total quantity of materials required.
Solution Approach 2:
The bottom wall of the U-board serves multiple functions: it provides structural support for the packaged item and simultaneously functions as the handle structure through its reinforced construction. This multi-functionality eliminates the need for dedicated handle materials, reducing overall material usage while maintaining handling capability.
3Strength
If the bottom wall is reinforced with alternating strips of paperboard and reinforcing material, then the strength and integrity of the handle openings are increased, but the manufacturing process becomes more complex
Solution Approach 1:
The bottom wall is constructed using composite materials consisting of alternating layers of paperboard and reinforcing material (such as corrugated board or plastic). This composite structure provides enhanced strength and rigidity for the handle openings while maintaining compatibility with standard lamination processes, balancing strength requirements with manufacturing feasibility.
Solution Approach 2:
The reinforced structure is pre-formed during the lamination process before the U-board is cut or assembled. The alternating layers are laminated together in advance to create the strengthened bottom wall, and handle openings are subsequently formed by cutting through the pre-reinforced structure, which is more efficient than attempting to reinforce after assembly.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The integrated handle provides increased strength and integrity while minimizing additional materials and costs, allowing for easier handling and protection of items like doors and windows without the need for separate handles.
Implementation Method 1
a preformed, rigid unit of generally U-shaped cross-section having a main body portion with a generally flat, reinforced bottom wall
Data Source
AI summary
A packaging container has a heavy duty integrated handle. The container is formed from a rigid unit of generally U-shaped cross-section having a main body portion with a generally flat bottom wall and upstanding, opposing sidewalls, wherein the bottom wall is reinforced with reinforcing material. Reinforced hand openings are formed in the reinforced bottom wall, configured for a user to insert a hand for use as the handle for the packaging container.