Roller Mouse Dual-Mode Switching Mechanism
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Solution Overview
Problem
Conventional roller mice are limited in their ability to switch between clicking modes efficiently and cost-effectively, often requiring complex mechanisms that increase production costs.
Innovation Solution
A roller mouse design featuring a swingable assembly and an adjusting element or switching module that allows for simple switching between clicking modes by altering the position of the swingable assembly relative to a fence structure, enabling stable mode switching at reduced costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex mechanism is used to switch between clicking modes, then the switching reliability is improved, but the device complexity and production cost increase
Solution Approach 1:
The patent combines the mode switching function with the existing wheel element pressing action. The same pressing motion that activates the triggering switch also controls the pivotal arm to swing between contact and separation states, merging two functions into one mechanical action and eliminating the need for a separate switching mechanism
Solution Approach 2:
The pressing action on the wheel element serves multiple functions: it triggers the triggering switch for left-click operation, simultaneously drives the pivotal arm to swing for mode switching, and activates the elastic element for resetting. This multi-functionality reduces the number of separate mechanisms needed
2Ease of manufacture
If a simple mechanism is used to switch between clicking modes, then the production cost is reduced, but the switching stability may be compromised
Solution Approach 1:
The elastic element automatically resets the pivotal arm to its initial position after each pressing action, and the wheel element's pressing motion automatically drives the pivotal arm to swing to the correct position. The system uses its own operating motions to perform the switching and resetting functions without external intervention
Solution Approach 2:
The pivotal arm transitions from a static position to a dynamic swinging motion that alternates between contact and separation states. This dynamic behavior allows the same mechanical structure to provide two distinct clicking modes through motion rather than requiring two separate static mechanisms
3Ease of operation
If the pivotal arm is separated from the fence structure, then the wheel element rotates smoothly without clicking feel, but the mechanism complexity increases
Solution Approach 1:
The pivotal arm dynamically changes its position relative to the wheel element, swinging between contact and separation states. When separated, it provides smooth stepless rotation; when contacted, it provides clicking feel with graduations. The same dynamic structure serves both functions without requiring separate mechanisms
Data Source
AI summary
A roller mouse includes a casing, a wheel module, a swingable assembly and an adjusting element. The wheel module includes a wheel element. The swingable assembly is fixed on the wheel module, and located near the wheel element. When the adjusting element is in a first position, the swingable assembly is contacted with the wheel element, so that the wheel module is in a first clicking mode. When the adjusting element is moved to a second position, the swingable assembly is pushed by the adjusting element, and the swingable assembly is separated from the wheel element, so that the wheel module is in a second clicking mode.