Removable Tire Noise Damper After Puncture Sealant Repair
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Solution Overview
Problem
Pneumatic tires with porous noise dampers experience increased vibrations and weight imbalance after puncture repair due to absorption of puncture sealant, necessitating premature tire replacement.
Innovation Solution
A pneumatic tire design where the porous noise damper is freely removable from the tire inner cavity, allowing it to be easily taken out after puncture repair, preventing sealant absorption and maintaining reduced vibrations during use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the noise damper is fixed to the pneumatic tire body, then the noise damping effect is improved, but the tire cannot be continuously used after puncture repair due to weight imbalance from sealant absorption
Solution Approach 1:
The noise damper is designed as a separate, removable component rather than being integrally fixed to the tire body. This segmentation allows the noise damper to be independently removed after puncture repair when it has absorbed sealant, preventing weight imbalance issues while maintaining noise damping functionality during normal use.
Solution Approach 2:
The noise damper configuration transitions from a static fixed state during normal operation to a removable state after puncture repair. This dynamic approach allows the system to adapt to different operational conditions: fixed for noise damping during running, and removable to eliminate weight imbalance after sealant absorption.
2Reliability
If the puncture sealant is injected into the tire inner cavity, then the puncture hole is sealed, but the noise damper absorbs the sealant causing increased vibrations
Solution Approach 1:
The noise damper is extracted or removed from the tire inner cavity after puncture repair when it has absorbed the sealant. This extraction eliminates the source of weight imbalance and vibrations, allowing the tire to be continuously used without harmful vibrations while maintaining the puncture sealing effectiveness.
3Object-affected harmful factors
If the noise damper is made porous to improve noise damping, then the noise damping effect is enhanced, but the sealant is absorbed by the porous structure causing weight imbalance
Solution Approach 1:
The porous noise damper is designed as a separable component that can be removed independently from the tire. This segmentation allows the porous structure to perform its noise damping function during normal operation while enabling easy removal after sealant absorption, preventing permanent weight imbalance issues.
Solution Approach 2:
The noise damper is discarded (removed) from the tire inner cavity after it has absorbed the puncture sealant. This discarding action eliminates the weight imbalance problem caused by sealant absorption in the porous structure, while the tire itself is recovered for continued use.
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
Enables continuous use of the tire with reduced vibrations by allowing the noise damper to be removed after puncture repair, extending the tire's lifespan and maintaining noise damping effectiveness.
Implementation Method 1
a part of the puncture sealant is absorbed also by the noise damper
Implementation Method 2
a part of the puncture sealant is absorbed also by the noise damper
Data Source
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AI summary
Provided are a pneumatic tire (1) that can be continuously used with vibrations and the like reduced during running even after puncture repair is performed by injecting a puncture sealant, and the like. The present invention is a pneumatic tire which is to be mounted to a vehicle (25) equipped with a puncture repair (20) kit including a puncture sealant, and for which puncture repair is performed by injecting the puncture sealant into the tire. The pneumatic tire of the present invention includes: a pneumatic tire body (1A) defining a tire inner cavity (1B); and a porous noise damper (10) disposed in the tire inner cavity (1B). The noise damper (10) is not fixed to the pneumatic tire body (1A) in the tire inner cavity (1B), and is configured to be freely removable from the pneumatic tire body (1A).