Vehicle Wheel Valve Hole in Solid Rim Portion
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Solution Overview
Problem
Existing vehicle wheel designs with hollow portions in the rim complicate the mounting of air valves and allow machining dust to enter the hollow area, compromising hermetic performance and quality.
Innovation Solution
A vehicle wheel design where a solid-state non-hollow portion with a larger cross section than the valve hole is created alongside the hollow portion, allowing the valve hole to be formed in the non-hollow portion, simplifying the air valve mounting and preventing machining dust from entering the hollow area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the valve hole is formed to pass through the hollow portion, then the air valve can be mounted, but the mounting structure becomes complicated and hermetic performance is compromised
Solution Approach 1:
The rim is divided into a hollow portion and a solid-state non-hollow portion. The valve hole is positioned exclusively in the solid-state non-hollow portion, separating the valve mounting function from the hollow chamber structure. This segmentation allows the valve to be mounted without passing through the hollow portion, eliminating the need for complex sealing structures while maintaining hermetic performance of the tire air chamber.
Solution Approach 2:
The valve hole is extracted from the hollow portion and relocated to the solid-state non-hollow portion. This extraction removes the conflict between having a hollow chamber for weight reduction and needing a simple valve mounting structure, as the valve hole now exists only in the solid portion without interfering with the hollow chamber's hermetic seal.
2Ease of operation
If the valve hole is formed to pass through the hollow portion, then the air valve can be mounted, but machining dust enters the hollow portion and remains therein
Solution Approach 1:
The valve hole is extracted from the hollow portion and positioned only in the solid-state non-hollow portion. This eliminates the pathway for machining dust to enter the hollow portion during valve hole processing, as the cutting operation is confined to the solid portion and cannot generate dust that would contaminate the hollow chamber.
Solution Approach 2:
By segmenting the rim into hollow and solid portions with the valve hole exclusively in the solid portion, the hollow portion is protected from machining operations. This spatial segmentation prevents machining dust generated during valve hole formation from entering or contaminating the hollow portion, improving quality without affecting valve mounting capability.
3Weight of moving object
If a hollow portion is formed in the rim, then weight is reduced, but the valve hole must pass through it complicating the structure
Solution Approach 1:
The rim is segmented into a hollow portion for weight reduction and a solid-state non-hollow portion for valve mounting. This segmentation allows the hollow portion to maintain its weight-saving function while the solid portion provides a simple, non-complicated structure for valve hole formation and mounting, eliminating the need for the valve hole to pass through the hollow portion.
Solution Approach 2:
The valve hole function is extracted from the hollow portion and relocated to the solid-state non-hollow portion. This extraction preserves the weight reduction benefit of the hollow portion while eliminating the structural complexity that would arise from having the valve hole pass through the hollow chamber, allowing use of common air valves with simple mounting structures.
Data Source
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AI summary
A vehicle wheel according to the present invention includes a hollow-state hollow portion and a solid-state non-hollow portion inside an outboard bead seat in a radial direction, which are provided in series in a circumferential direction of the wheel, the non-hollow portion having a cross section with a larger area than a hole cross section of a valve hole and having the valve hole formed therein. This structure prevents a sealing structure for ensuring hermetic performance from being complicated as compared to a wheel having the valve hole in the hollow portion, thus simplifying a mounting structure of an air valve. A method for manufacturing such a vehicle wheel allows formation of the valve hole in the non-hollow portion. Machining dust generated through a cutting process can thus be prevented from entering the hollow portion and remaining therein.