Automobile Wheel Cover with Elastic Posts and Threaded Adjuster
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Solution Overview
Problem
Conventional automobile wheel covers fail to fit securely on automobile rims due to dimensional tolerances in shaft holes of different brands, leading to instability and potential falling during high-speed driving.
Innovation Solution
The automobile wheel cover features a central hole with a bearing seat, an annular seat with elastic posts, an adjusting block, and a threaded element, allowing the posts to expand and securely engage with the shaft hole, along with equidistantly positioned engaging legs to stabilize the assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional engaging legs are used to fit the shaft hole, then the wheel cover can be assembled to the rim, but the assembly becomes unstable due to dimensional tolerances in shaft holes of different brands
Solution Approach 1:
The patent employs dynamic adjustment mechanisms including threaded rods that allow the engaging legs to change their position and engagement depth. This enables the wheel cover to adapt to different shaft hole dimensions while maintaining secure engagement, resolving the contradiction between versatility and reliability
Solution Approach 2:
The patent utilizes adjustable parameters such as the threaded rod length and engaging leg positioning to accommodate variations in shaft hole diameters across different rim brands. By changing these parameters, the wheel cover achieves both broad compatibility and stable assembly
2Device complexity
If fixed engaging legs are used, then the structure is simple, but the wheel cover cannot be fitted tightly on rims with different hole diameters
Solution Approach 1:
The patent transforms fixed engaging legs into adjustable ones through threaded rod mechanisms. This adds controlled complexity to enable precise adjustment of the engaging leg positions, allowing the wheel cover to fit tightly on rims with different hole diameters while maintaining reasonable structural simplicity
3Reliability
If the wheel cover is designed for tight fit, then assembly stability is improved, but the device complexity increases due to additional adjustment mechanisms
Solution Approach 1:
The patent divides the engagement system into separate adjustable components (threaded rods, engaging legs, nuts) that can be independently adjusted. This segmentation allows for precise control of each engagement point, improving assembly stability while keeping each individual component relatively simple in design
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 ensures a stable assembly of the wheel cover on various rim diameters, enhancing driving safety by preventing the wheel cover from falling, even on rims with different hole diameters.
Implementation Method 1
an annular seat extended from an inner side of the bearing seat and defined with a plurality of slots, and between each two slots provided an elastic post
Data Source
AI summary
An automobile wheel cover includes a central hole, an adjusting block, a threaded element, and integrally formed with a bearing seat opposite an inner side of the central hole. An annular seat is extended from an inner side of the bearing seat and is defined with a plurality of slots, between each two slots is provided an elastic post. The adjusting block has a small diameter end and a large diameter end and is inserted in the annular seat via the small diameter end. The threaded element is threaded in the adjusting block via the bearing seat. Thereby, when screwing the threaded element, the large diameter end of the adjusting block moves in the annular seat to make the posts expanded outwardly and abutted against the shaft hole, which can apply to the automobile rims with different hole diameters and prevent the automobile wheel cover falling from the automobile rim.