Resilient Bicycle Tyre with Interconnected Bands
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Solution Overview
Problem
Conventional tyres with inner tubes or tubeless designs can become flat or burst, causing inconvenience for bicycle riders, especially when encountering bumps or potholes, and solid tyres offer weight and shock-absorption drawbacks.
Innovation Solution
A tyre with a rim featuring two concentric, annular bands interconnected by a resilient web, where the tyre material includes at least one resilient material for cushioning, and a harder material for the tread, providing shock absorption without the need for pressurized air, and a wheel structure with a hub and spokes for secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a pneumatic tyre (inner tube or tubeless) is used, then shock-absorbency is provided, but the tyre can become flat or burst requiring dismounting for repair
Solution Approach 1:
The patent changes the fundamental parameter of tyre composition from pneumatic (air-filled) to solid resilient material. The tyre comprises a rim with tyre material formed on it, where the tyre material includes resilient materials that provide shock absorption without requiring pressurized air, eliminating puncture risks while maintaining ride comfort
Solution Approach 2:
The patent employs composite materials consisting of multiple resilient materials with different properties. The tyre material includes at least two different resilient materials, where one provides overall cushioning and the other provides enhanced durability and grip, achieving both reliability and performance
2Reliability
If a solid tyre is used, then puncture resistance is achieved, but weight increases and shock-absorbing properties decrease
Solution Approach 1:
The patent changes the material parameter from traditional solid rubber to lightweight resilient materials such as foam elastomers or cellular materials. These materials provide the necessary structural integrity and puncture resistance while significantly reducing weight compared to conventional solid tyres
Solution Approach 2:
The patent utilizes porous or cellular resilient materials that provide shock absorption through their internal structure. The cellular structure of the foam elastomer allows for energy absorption during impact while maintaining low density and reduced weight
3Reliability
If a solid tyre is used, then puncture resistance is achieved, but shock-absorbing properties decrease causing rider discomfort and potential damage
Solution Approach 1:
The patent changes the mechanical properties parameter of the tyre material to optimize shock absorption. The resilient materials are selected and configured to provide appropriate cushioning characteristics that reduce impact forces transmitted to the rider and wheel, preventing discomfort and damage while maintaining puncture resistance
Solution Approach 2:
The patent uses composite resilient materials where different materials perform different functions: one material provides primary shock absorption for rider comfort, while another material provides durability and impact resistance to protect the wheel structure from damage
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 provides a puncture-proof, lightweight, and shock-absorbing tyre that maintains performance on various terrains, reduces rider discomfort, and simplifies maintenance by eliminating the need for pumps and repair kits, while being environmentally friendly and easy to change.
Implementation Method 1
the rim comprises two concentric, annular bands which are interconnected by a resilient web and the tyre material comprises at least one resilient material within the web
Implementation Method 2
The wheel absorbs contact with pot-holes, kerbs or other similar obstructions
Implementation Method 3
The resilient tyre material may comprise a cellular material. In a preferred embodiment the resilient tyre material is a foam elastomer with a low density
Data Source
AI summary
The present invention relates to a tyre (20) which has an annular band (4) which carries an annular flexible web (8). The web (8) is encasted in a flexible tyre material (20b) which supports the flexible web (8). A tread (20b) may be provided on the tyre (20) and the band (4) forms the rim (4) of a bicycle.