Mouse Device Swing Arm Mechanism for Accidental Trigger Prevention
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Solution Overview
Problem
Existing mouse device designs with lateral wheels and rib arms are not conducive to flexibility in internal component layout and space usage efficiency, leading to potential accidental keyswitch triggering when the wheel is vertically pressed.
Innovation Solution
A mouse device design featuring a housing with a pivotal swing arm and a wheel seat that can laterally swing to rotate the swing arm and press a keyswitch button, allowing for adjustable keyswitch placement and incorporating a supporting structure with an insertion groove to prevent accidental triggering by stabilizing the wheel seat when pressed vertically.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a wheel seat with lateral swinging capability and rib arms is used to press keyswitches, then the function of moving the scroll bar left and right is achieved, but the flexibility of internal component layout and space usage efficiency deteriorates
Solution Approach 1:
Instead of having the wheel seat swing laterally to press keyswitches (conventional design), this patent inverts the approach by having the swing arm pivot rotationally to press the keyswitches. The wheel seat remains stationary while the swing arm rotates around a pivotal portion to contact the keyswitches, thereby improving layout flexibility while reducing structural complexity
Solution Approach 2:
The swing arm is designed with a pivotal portion that allows rotational movement, transforming the static wheel seat structure into a dynamic system where the swing arm can rotate to press different keyswitches. This dynamic design enables more flexible component layout while maintaining functional capability
2Ease of operation
If the wheel seat is designed to laterally swing to press keyswitches, then keyswitch activation function is achieved, but accidental keyswitch triggering when the wheel is pressed vertically worsens
Solution Approach 1:
Instead of the wheel seat swinging laterally to press keyswitches (which causes accidental triggering when pressed vertically), this patent inverts the mechanism so that only the swing arm rotates to press the keyswitches. The wheel seat remains stationary and does not participate in the keyswitch pressing action, thereby preventing accidental triggering while maintaining ease of operation
Solution Approach 2:
The patent extracts the keyswitch pressing function from the wheel seat and assigns it to the swing arm. The wheel seat's lateral swinging capability is removed, and only the swing arm's rotational movement around the pivotal portion remains responsible for pressing the keyswitches, thereby eliminating the source of accidental triggering
3Productivity
If rib arms extend on both sides of the wheel seat to press keyswitches, then lateral scroll bar movement function is achieved, but space usage efficiency deteriorates
Solution Approach 1:
The swing arm serves multiple functions: it acts as both the lateral pressing mechanism and the rotational actuator for the keyswitches. By making the swing arm multi-functional, the patent eliminates the need for separate rib arms extending from the wheel seat, thereby improving space utilization efficiency while maintaining the lateral scroll bar movement function
Solution Approach 2:
The patent merges the wheel seat and swing arm functions into a unified system where the swing arm's pivotal portion is connected to the wheel seat assembly. This consolidation eliminates redundant components and optimizes the use of internal space, thereby improving productivity and space utilization efficiency
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
This design enhances the flexibility of internal component layout, improves space utilization, and reduces accidental keyswitch triggering by increasing the force and distance required to trigger the keyswitch, while preventing wheel seat swinging when the wheel is pressed vertically.
Implementation Method 1
the wheel seat includes a first magnet. the second extending portion includes a second magnet. identical poles of the first magnet and the second magnet are opposite to each other
Data Source
AI summary
A mouse device includes a housing, a keyswitch, a swing arm, a wheel seat, and a wheel. The housing includes a bottom board. The keyswitch is located over the bottom board and includes a button. The swing arm includes a pivotal portion and first and second extending portions. The pivotal portion is pivotally connected to the bottom board. The first extending portion is connected to the pivotal portion and abuts against the button. The second extending portion is connected to the pivotal portion. The wheel seat is located over the bottom board and configured to laterally swing toward the second extending portion to move the second extending portion, so as to rotate the swing arm to press the button by the first extending portion. The swing arm is located at a side of the wheel seat. The wheel is rotatably disposed in the wheel seat.