Releasable Paperboard Chock Assembly for Roll Securement
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Solution Overview
Problem
Existing methods for securing large rolls of paper on pallets are inefficient as they rely on small cylindrical rolls that can move independently, leading to instability and difficulty in securement.
Innovation Solution
A releasable paperboard chock assembly is designed, comprising interconnected paperboard chocks and a sling, where the chocks have curved surfaces to conform to the roll and a sling that secures the chocks together, allowing for easy release by tearing a specific section.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If small cylindrical rolls are used as chocks, then the structure is simple, but the stability and securement reliability deteriorate due to independent movement of the rolls
Solution Approach 1:
The patent merges two separate cylindrical rolls into a single integrated chock structure formed from one piece of paperboard. This unified structure prevents independent movement of the rolls while maintaining structural simplicity, directly resolving the contradiction between device simplicity and securement reliability.
Solution Approach 2:
The chock structure incorporates curved upper edge surfaces that conform to the cylindrical shape of the paper rolls. This curvature enables better contact and stability between the chock and the rolls, improving securement reliability without significantly increasing structural complexity.
2Reliability
If interconnected chocks with sling are used, then the securement reliability improves, but the device complexity increases
Solution Approach 1:
The chocks and sling are combined into a single integrated assembly that functions as one unit. This merging improves securement reliability while minimizing the increase in device complexity by using a unified design rather than separate components.
Solution Approach 2:
The sling incorporates a tear section that allows for easy release and recovery of the chock assembly from the rolls. This feature enables quick discarding of the used chock assembly and recovery for reuse, offsetting the increased device complexity through improved operational efficiency.
3Strength
If bands are passed through core and pallet, then the securement strength improves, but the ease of operation deteriorates due to difficulty in release
Solution Approach 1:
The sling includes a specifically designed tear section that allows for easy tearing and release of the chock assembly from the rolls. This enables quick recovery and reuse of the chock assembly, dramatically improving ease of operation compared to permanent banding methods while maintaining securement strength during use.
4Stability of the object's composition
If curved surfaces are added to conform to rolls, then the stability improves, but the manufacturing precision requirements increase
Solution Approach 1:
The upper edge surfaces of the chock are formed with curves that match the cylindrical shape of the paper rolls. This curvature provides stable contact and positioning without requiring extremely high manufacturing precision, as the curved geometry naturally accommodates variations within standard tolerances.
Solution Approach 2:
The curved surfaces are designed with specific radius parameters that optimize contact with standard roll dimensions. By carefully selecting these geometric parameters, the design achieves stable positioning while remaining manufacturable with conventional precision levels.
Data Source
AI summary
A releasable paperboard chock assembly is provided comprising first and second paperboard chocks, each comprising a base, a back wall, and first and second side walls adjacent to the base. Each of the first and second side walls comprises an upper edge surface having a generally curved portion to conform to a curved surface of a roll to be secured. A paperboard sling extends between the first and second chocks comprising first and second ends joined to the first and second chocks, respectively.