Magnetic Roller Input Device Switching Scroll Modes
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Solution Overview
Problem
Conventional roller input devices with sectional touch feel are inadequate for scenarios requiring long-distance rolling or more sophisticated operations, as they lack the ability to switch between different modes of operation effectively.
Innovation Solution
A roller input device with a housing, passive member, and active member, where magnetic modules between the two members attract or repel to move the passive member relative to the housing, allowing the abutting portion to either abut or separate from the annular tooth portion, switching between sectional and non-sectional modes to accommodate various user needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the roller uses a resilient ball abutting against the tooth surface to produce sectional touch feel, then the precision of page scrolling is improved, but the adaptability to different operation scenarios (long-distance rolling, sophisticated operations) deteriorates
Solution Approach 1:
The patent applies the dynamics principle by making the passive member movable relative to the housing, allowing it to switch between two positions: one where the abutting portion contacts the annular tooth portion (sectional mode) and another where it separates (non-sectional mode). This dynamic configuration enables the roller to adapt between precise scrolling and long-distance rolling operations, resolving the contradiction between measurement precision and adaptability.
2Measurement precision
If the roller is designed for sectional touch feel operation, then the control precision over scrolling distance is improved, but the ease of operation for long-distance rolling deteriorates
Solution Approach 1:
The movable passive member enables dynamic switching between sectional and non-sectional modes. In non-sectional mode, the abutting portion separates from the annular tooth portion, reducing resistance and making long-distance rolling easier to operate while maintaining the ability to switch back to precise control when needed.
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
Enables the roller input device to switch between sectional and non-sectional modes, providing a touch feel suitable for both precise and long-distance rolling operations, thus enhancing user flexibility and operational efficiency.
Implementation Method 1
the active member is disposed in the housing and operably moved to a first mode or a second mode to make the first magnetic module and the second magnetic module attract or repel each other to drive the passive member to move relative to the housing
Data Source
AI summary
A roller input device includes a housing, a passive member and an active member. A roller is pivotally disposed inside the housing, and the roller includes an annular tooth portion. The passive member is movably disposed inside the housing, and the passive member includes an abutting portion and a first magnetic module. The active member has a second magnetic module, and the active member is disposed inside the housing and operably moved to a first mode or a second mode to make the first magnetic module and the second magnetic module attract each other or make the first magnetic module and the second magnetic module repel each other to drive the passive member to move relative to the housing to a first position or a second position, such that the abutting portion and the annular tooth portion abut against or separate from each other.