Steering Column Gear Misalignment Correction
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Solution Overview
Problem
Conventional steering columns often experience tooth-on-tooth engagement during telescoping operations, leading to unstable locking, compromised driver feedback, and potential damage to components.
Innovation Solution
A steering column design featuring a plate bracket with wings, a distance bracket, an adjust bolt, a lever, and gears that prevent tooth-on-tooth engagement by allowing the first gear to move within a predetermined range to correct misalignment, ensuring proper meshing and stable locking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the fixed gear and movable gear are engaged during telescoping operation, then the telescoping operation is locked, but the gear teeth may overlap and cause tooth-on-tooth engagement
Solution Approach 1:
The first gear is designed to be movable relative to the adjust bolt within a predetermined range, allowing it to dynamically adjust its position during engagement with the second gear. This dynamic capability enables the gear teeth to properly mesh without overlapping, preventing tooth-on-tooth engagement while maintaining reliable locking when engaged and allowing smooth telescoping when disengaged.
2Reliability
If the gear teeth engage properly, then stable locking is achieved, but the driver's feeling of lever manipulation deteriorates due to tooth-on-tooth engagement
Solution Approach 1:
The movable first gear eliminates tooth-on-tooth engagement by allowing proper gear meshing, which directly improves the driver's feeling of lever manipulation. When the gear teeth engage smoothly without overlap, the lever operation becomes more precise and provides better feedback to the driver, while still achieving stable locking when the telescoping operation is locked.
3Reliability
If the telescoping operation is locked by gear engagement, then the steering column position is fixed, but component damage may occur due to tooth-on-tooth engagement
Solution Approach 1:
The movable first gear prevents tooth-on-tooth engagement by enabling proper gear tooth meshing during the locking operation. This eliminates the harmful overlapping contact that causes stress concentration and component damage, allowing the steering column to achieve secure position fixation without compromising the durability of the gear components.
Data Source
AI summary
According to the present embodiments, it is possible to prevent a tooth-on-tooth engagement between gear teeth, which may occur during the telescoping operation of the steering column, thereby leading to stable locking of the steering column, enhancing the driver's feeling of lever manipulation, and preventing damage to components.