Self-Sealing Spoke Wheel Nipple for Hermetic Rim Sealing
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Solution Overview
Problem
Standard spoke wheel nipples in motorcycles and automobiles often leak due to improper installation of liquid silicone designs, requiring extensive rework and additional tools, making the process costly and prone to dust and debris contamination.
Innovation Solution
A self-sealing automotive spoke wheel nipple with an integrated rubber seal that conforms to the spoke hole recess, providing a hermetic connection and eliminating the need for liquid silicone or inner tubes, using a mechanically adjustable design with a concentrically positioned head, shank, and elastic gasket for secure sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If liquid silicone is applied to seal spoke wheel holes, then air leakage is prevented, but installation complexity increases and requires additional tools and controlled environment
Solution Approach 1:
The patent combines the sealing function directly into the nipple component by integrating an elastic gasket with the nipple body. This merges the sealing function with the existing nipple structure, eliminating the need for separate liquid silicone application and creating a self-contained sealing solution that requires no additional materials or controlled environment.
Solution Approach 2:
The nipple with integrated elastic gasket is designed to be self-sealing through its own structure. The elastic gasket automatically conforms to the spoke hole recess upon installation, creating a hermetic seal without requiring external sealing materials or specialized installation procedures. The nipple serves its own sealing needs through its integrated design.
2Reliability
If liquid silicone is used for sealing, then air leaks are prevented, but installation time and cost increase due to extensive preparation and rework
Solution Approach 1:
The sealing function is pre-integrated into the nipple design during manufacturing, with the elastic gasket already positioned and configured on the nipple body. This preliminary integration of the sealing function eliminates the need for time-consuming liquid silicone application, cleaning, and curing steps during installation, allowing for quick and straightforward installation with standard tools.
3Manufacturing precision
If liquid silicone application is performed in controlled shop environment, then seal quality improves, but manufacturing cost increases
Solution Approach 1:
The patent uses a simple elastic gasket that can be easily manufactured and integrated into the nipple. This disposable-like approach with the elastic gasket eliminates the need for expensive controlled environment facilities, specialized tools, and extensive labor for liquid silicone application. The gasket can be easily replaced if needed, and the overall solution significantly reduces manufacturing and installation costs while maintaining reliable sealing.
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
The solution effectively prevents air leaks during spoke wheel installation without additional steps, ensuring a reliable seal with standard tools and eliminating the need for liquid silicone, thus simplifying the process and reducing costs.
Implementation Method 1
an integrated rubber seal that conforms to the recess of the spoke hole on the rim during installation
Data Source
AI summary
A self-sealing automotive spoke wheel nipple includes a spoke nipple and an elastic gasket. The spoke nipple that mounts the spoke into the rim includes a rotational axis, a head, a shank, and a spoke-engaging opening. The head, the shank, and the spoke-engaging opening are concentrically positioned along the rotational axis. The head is adjacently connected to the shank. The spoke-engaging opening traverses into the shank, opposite of the head so that the spoke can be threadedly engaged to the spoke nipple. The elastic gasket is laterally positioned around a shoulder portion of the shank and positioned adjacently to the head. The elastic gasket creates a hermetic connection between the rim and the spoke nipple as the elastic gasket completely seals the spoke opening of the rim during the installation process.