View Angle Adjustment Mechanism with Integrated Pivot Stiffness
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Solution Overview
Problem
Conventional view angle adjustment mechanisms for vehicles, such as mirror devices, face challenges in enhancing the stiffness of the view element holder while minimizing the number of components and effectively suppressing vibrations caused by vehicle movements or wind.
Innovation Solution
A view angle adjustment mechanism that supports a view element tilting section via at least two concentric pivots with different diameters, where the inner and outer pivots are formed between the tilting support section and the view element holder, and the outer pivot's convex surface is integrated into the view element holder, allowing for easy assembly and enhanced stiffness without the need for a separate plate pivot, and includes a dual structure with elastic pieces and ribs for vibration suppression.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a separate plate pivot is used to support the view element holder, then the view angle adjustment mechanism can be assembled, but the number of components increases and the stiffness of the view element holder is not enhanced
Solution Approach 1:
The patent merges the plate pivot function directly into the view element holder by forming the outer-pivot convex surface as an integrated part of the holder structure. This eliminates the need for a separate plate pivot component while maintaining the view angle adjustment capability, thereby reducing component count and simplifying assembly.
2Strength
If structure parts are added to the mirror holder side to enhance stiffness, then the holder stiffness improves, but the number of components increases
Solution Approach 1:
The patent combines the stiffness-enhancing structure (outer-pivot convex surface-forming annular wall) directly into the view element holder body. This integrated design provides the necessary structural reinforcement without requiring separate stiffening components, thus improving holder stiffness while avoiding increased component count.
Solution Approach 2:
The patent applies local structural reinforcement by forming an annular wall at the back surface of the view element holder where the outer pivot convex surface is located. This localized quality enhancement provides stiffness where needed (at the pivot interface) without adding unnecessary structure throughout the entire holder, optimizing the strength-to-complexity ratio.
Data Source
AI summary
This invention relates to a view angle adjustment mechanism. A view element tilting section is tiltably supported by a tilting support section via an inner pivot and an outer pivot. The view element tilting section includes a view element holder holding a view element. The inner pivot and the outer pivot are formed between the tilting support section and the view element holder. The outer pivot has a structure in which an outer-pivot convex surface formed at the view element holder and an outer-pivot concave surface formed at the tilting support section are slidably fitted together. The outer-pivot convex surface is formed in an outer circumferential surface of an outer-pivot convex surface-forming annular wall formed at a back surface of the view element holder in an integrated manner.