Mouse Adjusting Screw Mechanism for Switch Position Control
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Solution Overview
Problem
Existing mouse devices face challenges in achieving consistent operation feeling due to manufacturing tolerances affecting the distance between the button activating portion and the micro switch activating point, leading to inconsistent performance and requiring labor-intensive and aesthetically unpleasing adjustments.
Innovation Solution
A mouse device design featuring an upper housing, middle housing, bottom housing, retaining bracket, and adjusting screw, where the sensing switch module is suspended on a retaining bracket with an adjusting screw that allows for precise adjustment of the distance between the switch module and the button without exposing the screw from the bottom housing, thus eliminating the need for openings and preventing displacement of other elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the printed circuit board is fixed onto the bottom housing, then the structure is stable, but the manufacturing tolerances affect the distance between the button activating portion and the micro switch activating point
Solution Approach 1:
The patent divides the housing into upper housing and bottom housing with a suspended post connecting them, separating the structural support function from the adjustment function. The sensing switch module is mounted on the suspended post rather than being fixed to the bottom housing, allowing independent adjustment of the button-activating-point distance without affecting overall structural stability.
Solution Approach 2:
The patent introduces an adjusting screw that can be rotated to move the sensing switch module along the suspended post, transforming a static fixed structure into a dynamic adjustable one. This allows the distance between the button activating portion and micro switch activating point to be precisely controlled while maintaining structural stability through the rigid suspended post and housing framework.
2Manufacturing precision
If an adjusting screw is used to adjust the distance, then the manufacturing tolerances can be eliminated, but the adjusting screw may be exposed from the bottom housing
Solution Approach 1:
The adjusting screw is nested within the bottom housing, with the housing structure encompassing the screw mechanism. The suspended post and adjusting screw assembly are positioned such that the screw remains hidden within the housing contours, maintaining aesthetic appearance while preserving full adjustment functionality.
3Manufacturing precision
If the printed circuit board is suspended and mounted on the upper housing, then the tolerances can be eliminated by fine adjustment, but other elements on the printed circuit board may be moved
Solution Approach 1:
The patent separates the sensing switch module from other circuit elements by mounting it on a dedicated suspended post, while the main printed circuit board remains fixed in its original position on the upper housing. This segmentation allows the sensing switch module to be adjusted independently without moving other electronic components.
Solution Approach 2:
The sensing switch module is extracted from the main printed circuit board and mounted separately on the suspended post. This extraction allows the module to be adjusted independently along the suspended post while the main circuit board and its other elements remain stationary, preventing displacement of other components during adjustment.
4Manufacturing precision
If a height adjusting device is disposed in the housing, then the distance can be adjusted, but an opening needs to be formed on the bottom housing
Solution Approach 1:
The adjusting screw is pre-positioned within the bottom housing during housing manufacturing, with threading holes and mounting features prepared in advance. This preliminary preparation eliminates the need for post-manufacturing openings or complex assembly steps, as the screw can be directly installed into pre-configured locations within the housing structure.
Data Source
AI summary
A mouse device and a method for assembling and adjusting the same are provided. The mouse device includes an upper housing that includes a button, a middle housing, a bottom housing, a retaining bracket, a sensing switch module, and an adjusting screw. The middle housing is disposed between the upper housing and the bottom housing. The retaining bracket is disposed under the middle housing, and includes a frame and a suspended arm. A fixed end of the suspended arm is fixedly connected to one side of the frame. The sensing switch module is disposed on the suspended arm and corresponds in position to the button. The adjusting screw is disposed at another side of the frame, and is used to adjust a distance between the button and the sensing switch module. The adjusting screw is shielded by the bottom housing and is not exposed from the bottom housing.