Tyre Sound-Absorbing Ribbon With Tapered Ends for Secure Attachment
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Solution Overview
Problem
Existing noise-suppressing tyres face issues with band-like elements detaching from the tyre due to adhesive use, leading to gaps and wear, and require a reliable attachment method that maintains mass balance and noise-absorbing material quantity.
Innovation Solution
A ribbon-shaped sound-absorbing material is used with tapered ends to prevent compression and attachment gaps, ensuring contact between ends and minimizing adhesive use for improved durability and mass balance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If adhesive is used to connect the ends of the band-like element, then the sound-absorbing material wear is reduced, but the manufacturing complexity and manual work increase significantly
Solution Approach 1:
The invention extracts and eliminates the adhesive connection step from the manufacturing process. Instead of using adhesive to connect the ends of the band-like element, the patent uses a mechanical interlocking structure where the ends are directly joined through the mould, simplifying the manufacturing process while maintaining the protective function.
Solution Approach 2:
The band-like element is designed to be self-connecting through its structural configuration. The ends of the band are shaped to interlock or overlap in a way that provides automatic alignment and connection during the moulding process, eliminating the need for external adhesive application and reducing manual intervention.
2Reliability
If the ends of the band-like element are connected with adhesive, then the detachment problem is partially solved, but the reliability of attachment remains insufficient and manual work increases
Solution Approach 1:
The band-like element is formed with a curved or bent configuration that allows the ends to meet and connect smoothly. This curvature design ensures proper alignment and distribution of forces at the connection point, enhancing attachment reliability without requiring complex adhesive application procedures.
Solution Approach 2:
The invention merges the connection function into the structural design of the band-like element itself. The ends are designed to connect directly through the mould, combining the structural integrity and attachment function into a single integrated component, thereby improving reliability while reducing manufacturing complexity.
3Object-affected harmful factors
If more sound-absorbing material is used to improve noise suppression, then the noise-suppressing properties are enhanced, but the mass balance of the tyre becomes more difficult to maintain
Solution Approach 1:
The sound-absorbing material is strategically positioned and distributed within the tyre structure rather than being uniformly applied. The band-like element is placed in specific locations where it provides maximum noise suppression effectiveness, allowing for optimized noise control while maintaining overall mass balance of the tyre.
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 enhances noise suppression by maintaining a significant amount of sound-absorbing material while reducing wear and detachment issues, achieving better mass balance and ease of manufacturing.
Implementation Method 1
A tyre (100) comprises sound-absorbing material on an inner side of the tyre (100)
Data Source
Figure 1a~1b
Figure 1c~1d
Figure 1e~1f
AI summary
A tyre (100) comprising a tread (120) forming a part of an outer surface (112), and sound-absorbing material formed as a ribbon (200) and attached to an inner surface of a body (101) of the tyre (100). The ribbon (200) extends from a first end (201) of the ribbon to a second end (202) of the ribbon and the the shape of the ribbon (200) tapers such that a thickness (Tr) of the ribbon (200) decreases towards the second end (202) of the ribbon. The first end (201) of the ribbon is in contact with the second end (202) of the ribbon, and/or a gap (G) is arranged between the first end (210) of the ribbon and the second end (202) of the ribbon such that a maximum width (Wg) of the gap (G), as measured along the body (101) of the tyre (100), is at most 5 mm.