Bushing for a web material roll, web material roll retention assembly and method for installing the same
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Solution Overview
Problem
Existing paper roll dispensers face challenges in maintaining quality control and reducing maintenance and repair costs, as they often operate with a wide range of paper roll products, leading to inefficiencies and increased maintenance needs.
Innovation Solution
A bushing system for web material rolls that includes a body with a wall extending across the central cavity of the roll, featuring an opening for the roll support and bearing surfaces to securely mount the roll to a dispenser, ensuring proper alignment and rotation, thereby enhancing the stability and efficiency of the dispensing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a wide range of paper roll products are used in dispensers, then product versatility is improved, but maintenance and repair costs increase
Solution Approach 1:
The paper roll is divided into functional segments: the bushing component inserted into the roll core, the wall extending across the central cavity, and the opening for roll support insertion. This segmentation allows each component to perform its specific function optimally while enabling modular replacement and maintenance.
Solution Approach 2:
The bushing acts as an intermediary component between the paper roll and the dispenser roll support. It mediates the interaction by providing bearing surfaces that contact the roll support, ensuring proper alignment and rotation while protecting both the roll and dispenser from wear and misalignment issues.
2Productivity
If proper mounting and rotation of web material roll is ensured, then operational efficiency is improved, but device complexity increases
Solution Approach 1:
Multiple functions are merged into the bushing component: it provides structural support, creates bearing surfaces for rotation, ensures proper alignment through the wall structure, and guides the roll support through the opening. This consolidation improves operational efficiency without proportionally increasing complexity.
Solution Approach 2:
The bearing surfaces and wall structure automatically ensure proper mounting and rotation alignment without requiring additional adjustment mechanisms or complex control systems. The geometry of the bushing itself provides the self-aligning and self-regulating functionality needed for efficient operation.
Data Source
AI summary
A bushing for a web material roll including a body sized to be fitted into the web material roll; the bushing further including a wall extending across the central cavity of the web material roll when the bushing is in the central cavity of the web material roll and defining an opening for receiving a roll support therethrough, the opening being bordered by a roll support contacting surface, the bushing having one or more bearing surfaces for contacting the roll support and supporting the web material roll, the one or more bearing surfaces including at least the roll support contacting surface bordering the opening. A web material roll, a web material roll retention assembly and a method for placing a web material roll in a web material roll dispenser are also provided.