Wheel Hub Locking Assembly With Movable Anti-Unscrewing Levers
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Solution Overview
Problem
Existing central locking systems for securing wheel rims to wheel hubs in vehicles are prone to accidental unscrewing due to high torque during acceleration or braking, leading to potential wheel loss, and existing solutions are complex and difficult to manufacture or assemble.
Innovation Solution
A locking assembly with a locking element featuring movable securing means, such as locking levers, that engage with a hub abutment surface to prevent loosening, and a screw tool that moves the securing means to a release position for easy wheel removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a central locking element is used to fasten the wheel rim, then the ease of wheel changing is improved, but the reliability against accidental unscrewing under high torque deteriorates
Solution Approach 1:
The locking element incorporates movable securing means (locking levers) that can dynamically shift between a locking position (engaged with the abutment surface to prevent loosening) and a release position (disengaged to allow removal). This dynamic mechanism allows the same central locking element to provide both easy wheel changing and reliable resistance to accidental unscrewing under high torque conditions.
2Reliability
If existing solutions are implemented to prevent accidental unscrewing, then the reliability is improved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The invention merges the central locking element with integrated securing means (locking levers) that have both locking and releasing functions. By combining these functions into a single integrated assembly rather than separate components, the design achieves reliable prevention of accidental unscrewing while maintaining relatively simple structure and manufacturing processes.
3Reliability
If a securing means with movable locking lever is used, then the reliability against loosening is improved, but the ease of operation for wheel removal may deteriorate
Solution Approach 1:
The locking lever is designed to automatically return to the locking position after the wheel is removed, using its own spring mechanism. This self-service feature eliminates the need for additional manual operations to reset the locking mechanism, maintaining ease of wheel removal while ensuring reliable locking engagement for the next wheel installation.
Data Source
AI summary
Locking assembly for securing a wheel rim to a wheel hub of a vehicle, comprising a locking element with a cylindrical extension along the wheel hub main axis, having a first threaded section complementary to a hub second threaded section, wherein the locking element has at least one securing means which is movable between a locking position and a release position, said securing means comprising a retaining part which faces a corresponding abutment surface arranged on a hub central tubular portion, when the securing means is in its locking position, in such a way that, in the locking position, loosening of the locking element with respect to the wheel hub is prevented by engagement of said retaining part with said abutment surface.