Vehicle Mirror Buffering Mechanism Wear Reduction
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Solution Overview
Problem
Conventional vehicle outside mirror devices require additional components to prevent frictional wear and tear in the buffering mechanism, which complicates their design and functionality.
Innovation Solution
The vehicle outside mirror device incorporates a dual buffering mechanism with multiple tilt faces on the first and second members, utilizing a spring force to reduce frictional wear without the need for additional components, allowing the mirror assembly to rotate smoothly between use and storage locations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cutting proof member is added to prevent frictional wear and tear between casing top and stand top, then wear resistance is improved, but device complexity increases
Solution Approach 1:
The patent extracts the harmful frictional wear function from the buffering mechanism by providing tilt faces on the notch portions of the first and second members. These tilt faces allow relative movement without direct friction between the casing top and stand top, eliminating the need for additional cutting proof members while maintaining wear resistance.
Solution Approach 2:
Instead of adding a protective layer on top of the buffering mechanism components, the patent inverts the approach by modifying the buffering mechanism itself - providing tilt faces on the notch portions of the first and second members. This structural modification changes the interaction mode from direct friction to sliding along inclined surfaces, reducing wear without additional components.
2Reliability
If multiple tilt faces are provided on notch portions, then frictional wear is reduced, but manufacturing complexity increases
Solution Approach 1:
The patent segments the single contact surface into multiple tilt faces on the notch portions of the first and second members. This segmentation distributes the wear across multiple surfaces and allows smoother relative movement, reducing frictional wear while the tilt faces can be formed using standard machining operations.
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 effectively reduces frictional wear and tear, enhancing the durability and reliability of the mirror device while simplifying its construction by eliminating the need for extra components, thus improving abrasion resistance and maintaining the retaining force over an extended period.
Implementation Method 1
a first buffering mechanism, a motor, a rotation force transmission mechanism, and a second buffering mechanism, wherein the first buffering mechanism is a mechanism which is made of a first member, a second member that is the casing, and a spring, and in which a notch portion having a tilt face is provided in a respective one of the first member and the second member, when the mirror assembly is positioned between a use location and a storage location, the tilt face of the first member and the tilt face of the second member are caused to abut against each other by means of a spring force of the spring
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
According to the present invention, with regard to a plurality of notch portions, a plurality of tilt faces are provided for a respective one of the notch portions. As a result, the present invention is capable of lowering a facial pressure of a respective one of a plurality of tilt faces of one notch portion more remarkably than a facial pressure of one tilt face of one notch portion. As a result, the present invention is capable of reducing a frictional wear and tear of a tilt face without a need to use any other component.