Self-Adhesive Balancing Weight with Curved Adaptation
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Solution Overview
Problem
Existing self-adhesive balancing weights are not adaptable to various wheel rim shapes and geometries, requiring a large number of different weights to fit different rims, which is impractical due to mechanical tolerances and diverse rim profiles.
Innovation Solution
A self-adhesive balancing weight with a top surface and a bottom surface featuring at least two curved sections with different radii, along with straight sections, allowing for a broad range of rim compatibility through a self-adhesive tape that covers the curved sections tangentially, and optional extensions for easier handling and attachment methods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If self-adhesive balancing weights have a planar back surface designed to adhere to planar surfaces, then adhesive fixation is reliable, but the weights cannot fit to rims with concave-convex shaped counter-surfaces
Solution Approach 1:
The balancing weight incorporates a curved adaptation section with a specific radius of curvature that matches the concave-convex profile of aluminum wheel rims. This curved section allows the weight to conform to the rim's contour while maintaining adequate contact surface area for reliable adhesive fixation, thus resolving the contradiction between fixation reliability and shape adaptability.
2Reliability
If balancing weights are exactly complementary to the shape of the respective wheel rim, then fixation is secure, but a great number of different balancing weights must be kept on stock for different rim types
Solution Approach 1:
The balancing weight design features a universal adaptation section with a standardized radius of curvature that can accommodate multiple rim profiles. This single design can be applied to various rim types (steel and aluminum) with different geometries, eliminating the need to stock multiple specialized weight types while maintaining secure fixation across different applications.
3Ease of manufacture
If the bottom surface of the balancing weight is made planar for easy manufacturing, then manufacturing is simple, but the weight cannot adapt to rims with mechanical tolerances and diverse profiles
Solution Approach 1:
The balancing weight is divided into distinct functional sections: a planar main body for easy manufacturing and a separate curved adaptation section for rim contour matching. This segmentation allows the majority of the weight to be manufactured simply with planar surfaces, while only a specific adaptation section requires curved geometry to handle rim variations and mechanical tolerances.
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 enables a single type of balancing weight to fit multiple rim shapes, providing sufficient contact and adhesive force across a variety of rims, accommodating deviations in rim geometry and mechanical tolerances with the help of self-adhesive tape, thus simplifying the process of attaching balancing weights to vehicle wheels.
Implementation Method 1
The self-adhesive tape preferably is attached to the bottom surface or parts thereof
Data Source
AI summary
A self-adhesive balancing weight for a vehicle wheel has a top surface and a bottom surface with a self-adhesive tape. The bottom surface has a first curved section with a first radius and a second curved section with a second radius. The first radius is smaller than the second radius. This allows to hold the balancing weight by the adhesive tape to almost every rim, as there are always at least two holding points (-lines) by which the balancing weight contacts the rim via the adhesive tape.