Lint Roller Cover Latch for Accurate Adhesive Roll Protection
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Solution Overview
Problem
Existing lint roller assemblies face challenges in accurately replacing the protective cover over the adhesive roll, leading to premature adhesive exhaustion and cover tearing during removal.
Innovation Solution
A tubular cylindrical rigid roller cover with a latch and catch mechanism that automatically secures to a holder, ensuring complete enclosure and protection of the adhesive roll, made from plastic materials for durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a thin nonadhesive sheet cover is used to protect the adhesive roll, then the adhesive is protected when not in use, but the cover is difficult to accurately replace and prone to tearing during removal
Solution Approach 1:
The patent uses a thin nonadhesive sheet cover that is flexible enough to wrap around the adhesive roll but structured with overlapping margins that provide durability during removal and accurate positioning during replacement
Solution Approach 2:
The cover is pre-formed with specific dimensional characteristics including overlapping margins and a slightly larger diameter than the adhesive roll, which enables accurate self-positioning during replacement without requiring precise manual alignment
2Reliability
If the cover is made thin to fit closely around the adhesive roll, then protection is effective, but the cover tears easily during removal
Solution Approach 1:
The cover employs a thin nonadhesive sheet material that provides effective protection while incorporating design features like overlapping margins that distribute stress and prevent tearing during removal operations
Solution Approach 2:
The overlapping margin design creates a buffer zone that absorbs mechanical stress during cover removal, preventing the thin material from tearing by distributing the force across a larger area
3Ease of operation
If manual positioning of the cover is used during replacement, then the cover can be installed, but accurate alignment is difficult to achieve leading to premature adhesive exhaustion
Solution Approach 1:
The cover is pre-manufactured with a diameter slightly larger than the adhesive roll and includes overlapping margins that automatically guide correct positioning during installation, eliminating the need for precise manual alignment
Solution Approach 2:
The cover's dimensional design enables it to self-position correctly on the adhesive roll during replacement, with the overlapping margins naturally aligning the cover without requiring user skill or precision tools
Data Source
AI summary
A lint roller assembly having a holder with a handle and a lint roller support section longitudinally adjacent each other. The lint roller support section is adapted to rotatably support a tubular cylindrical lint removal roller. A tubular cylindrical rigid roller cover is open at one end and dimensioned to be positioned over the roller so that the cover entirely encloses the roller. A latch in the cover automatically engages a catch on the holder as the cover is longitudinally inserted over the holder to detachably lock the cover and holder together.