Rolled material dispenser spindle stabilizer assembly
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Solution Overview
Problem
Existing rolled material dispensers face challenges in allowing easy tearing of materials like paper towels and toilet paper from rolls due to excessive rotation, leading to frustration and wastage, as the low friction between the roll and spindle makes it difficult to separate the material without using too much of it.
Innovation Solution
A spindle stabilizer assembly with a larger and smaller diameter part, where the smaller part is slidable against a spring, and tape strips on the larger part create frictional engagement with a stabilizing tube to control rotation, enabling easy tearing of the material from the roll.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If low friction is provided between the rolled material and the spindle, then the rolled material can be easily replaced, but excessive material is used during tearing causing frustration and wastage
Solution Approach 1:
The spindle's larger diameter part creates localized high friction where the tube contacts it, preventing excessive rotation and material wastage during tearing. The smaller diameter part maintains low friction for easy installation and removal of the tube with the roll, thus resolving the contradiction between ease of replacement and material wastage.
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 solution allows for controlled rotation and easy removal of the rolled material, preventing excessive usage and facilitating the replacement of rolls, thereby addressing the frustration and wastage issues.
Implementation Method 1
The smaller diameter part is partially inserted into the larger diameter part and is slidable relative thereto against the bias of a spring
Implementation Method 2
Strips of tape are axially formed to the large diameter part and the larger diameter part is slid into a stabilizing tube, where the tape frictionally slows the rotation between the spindle and the tube
Implementation Method 3
A friction engagement is provided between an outer diameter of the tube and the rolled material that allows the rolled material to rotate relative to the tube under a reasonable force
Data Source
AI summary
A spindle stabilizer assembly for use in connection with a rolled material dispenser that dispenses a rolled material. The spindle stabilizer assembly includes a spindle having a larger diameter part and a smaller diameter part, where the smaller diameter part is partially inserted into the larger diameter part and is slidable relative thereto against the bias of a spring. Strips of tape are axially formed to the larger diameter part and the larger diameter part is slid into a stabilizing tube, where the tape frictionally slows the rotation between the spindle and the tube. A friction engagement is provided between an outer diameter of the tube and the rolled material that allows the rolled material to rotate relative to the tube under a reasonable force so that the rolled material can be easily torn off the roll.