Low Friction Roller Module for Mouse Scroll Mechanism
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Solution Overview
Problem
Conventional mice with rollers experience high friction due to direct contact between the roller and support shaft, leading to increased scrolling resistance and user effort.
Innovation Solution
A low friction roller module is introduced, featuring a support, roller, low friction bearing, and support shaft, where the low friction bearing is composed of concentric outer and inner bearings with rolling assemblies, reducing friction between the roller and support shaft, and an encoding component connected to the roller to facilitate smooth scrolling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the support shaft directly passes through and is connected to the roller, then the structure is simple, but friction force increases and scrolling resistance increases
Solution Approach 1:
A low friction bearing is introduced as an intermediary component between the roller and support shaft. The bearing includes an inner bearing connected to the roller, an outer bearing connected to the support shaft, and rolling assemblies (balls or pin rollers) between them. This intermediary structure transforms the direct sliding friction contact into rolling friction contact, significantly reducing friction force while maintaining structural simplicity.
2Device complexity
If the support shaft directly passes through and is connected to the roller, then the structure is simple, but scrolling duration decreases and user effort increases
Solution Approach 1:
The low friction bearing acts as a mediator that reduces energy loss due to friction. By replacing direct sliding contact with rolling contact between the inner bearing, outer bearing, and rolling assemblies, the system maintains scrolling motion for longer durations with less user effort, while keeping the overall structure simple and straightforward.
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 significantly reduces rolling friction, allowing for easier and longer scrolling with less user effort, while maintaining alignment to prevent misalignment and ensure smooth operation.
Implementation Method 1
friction force between the roller and the support shaft is reduced, thereby reducing rolling friction force
Data Source
AI summary
The present invention provides a mouse with a low friction roller module, including a mouse body and a low friction roller module; the low friction roller module is mounted in the mouse body and includes a support, a roller, a low friction bearing, a support shaft, and an encoding component; a mounting portion is provided in the roller; the low friction bearing is fastened in the mounting portion; one side of the support shaft passes through and is connected to the low friction bearing, and the other side of the support shaft passes through and is connected to the support; and the encoding component is connected to the roller. In this way, rolling friction force is reduced.