Tyre Sound Absorber Bonding via Segmented Adhesive Patterns
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Solution Overview
Problem
Existing pneumatic vehicle tires require full-surface bonding of sound-absorbing absorbers, which increases weight, manufacturing complexity, and adhesive costs, while also affecting driving properties and fuel efficiency.
Innovation Solution
A pneumatic vehicle tire with an absorber integrated for sound absorption, featuring a non-uniform adhesive distribution along the circumference, allowing for a reduced adhesive surface area application, such as stripe patterns, wavy lines, or dot matrices, to ensure reliable bonding with minimal adhesive usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If full-surface bonding is used to attach the absorber, then bonding reliability is improved, but weight and adhesive costs increase
Solution Approach 1:
The adhesive bonding area is segmented into discrete patterns (stripes, waves, or dots) rather than continuous full-surface coverage. This segmentation maintains bonding reliability at critical locations while reducing overall adhesive quantity, thereby reducing weight and cost.
Solution Approach 2:
Different regions of the absorber-tire interface are treated differently: high-bonding areas use adhesive patterns for reliable attachment, while low-bonding areas leave the surface adhesive-free. This local differentiation maintains necessary bonding reliability while minimizing weight and cost.
2Reliability
If full-surface bonding is used to attach the absorber, then bonding reliability is improved, but manufacturing complexity and effort increase
Solution Approach 1:
The bonding process is segmented into discrete adhesive application zones rather than requiring uniform full-surface coverage. This simplifies manufacturing by reducing the complexity of adhesive application while maintaining bonding reliability at critical locations.
Solution Approach 2:
Instead of applying adhesive to the entire surface (excessive action), adhesive is applied only to necessary bonding zones (partial action). This reduces manufacturing effort and complexity while achieving sufficient bonding reliability for the absorber attachment.
3Reliability
If full-surface bonding is used to attach the absorber, then bonding reliability is improved, but adhesive costs increase
Solution Approach 1:
Adhesive application is segmented into specific patterns (stripes, waves, or dots) rather than continuous full-surface coverage. This reduces the total quantity of adhesive required while maintaining bonding reliability at critical attachment locations.
Solution Approach 2:
Adhesive is applied with local quality variation: concentrated at bonding-critical regions and absent or minimal in non-critical regions. This reduces overall adhesive consumption while ensuring reliable bonding where needed.
4Reliability
If full-surface bonding is used to attach the absorber, then bonding reliability is improved, but tire weight increases affecting fuel efficiency
Solution Approach 1:
The adhesive bonding is segmented into discrete patterns rather than full-surface coverage, reducing the total adhesive quantity and thereby reducing tire weight. This weight reduction improves fuel efficiency while maintaining bonding reliability at critical locations.
Solution Approach 2:
Adhesive is applied with local quality differentiation, concentrating bonding material only where necessary for reliable absorber attachment. This minimizes unnecessary adhesive weight, reducing overall tire weight and improving fuel efficiency while maintaining adequate bonding reliability.
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 approach reduces the overall weight and manufacturing effort, lowers adhesive costs, and simplifies the production process, while maintaining effective sound absorption and driving performance.
Implementation Method 1
the absorber (10) is materially bonded, i.e. cohesively connected, to the inner surface (9) of the pneumatic vehicle tire (1) using an adhesive (11)
Implementation Method 2
an absorber (10) is integrated into the pneumatic vehicle tire (1) for sound absorption
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
The invention relates to a pneumatic vehicle tyre (1), the profiled running surface (2) thereof extending on both sides (3, 4), their ends being formed by a tyre bead (5, 6) which can be introduced in an air-tight manner into a rim (7) of a vehicle wheel (8). An absorber (10) which absorbs sound and which is integrally bonded with the inner surface (9) of the vehicle tyre (1), is integrated into the vehicle tyres (1) and the integral bond consists of an adhesive (11) which is not distributed over the entire surface between the absorber (10) and the inner surface (9) of the pneumatic vehicle tyre (9).