Segmented Inner Tube With Interconnected Bladders
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Solution Overview
Problem
Conventional tire inner tubes are prone to rupture and pinch flats due to inadequate pressure resistance during impacts, such as hitting curbs, as they cannot effectively manage sudden increases in pressure and contact area, leading to rim strikes and damage.
Innovation Solution
A segmented inner tube design with interconnected bladders that allow for controlled airflow and pressure distribution, enabling a localized increase in pressure during impacts to prevent rim strikes and maintain tire integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a conventional inner tube is used, then the tire structure is simple and easy to manufacture, but the tube is prone to rupture and pinch flats during impacts due to inadequate pressure resistance
Solution Approach 1:
The inner tube is divided into multiple independent bladders (first bladder, second bladder, third bladder, fourth bladder) that are interconnected through flow control members. Each bladder can independently increase pressure during impacts, preventing rupture while maintaining overall tube functionality even if one segment fails.
2Reliability
If the inner tube operates at higher pressures to prevent pinch flats, then pressure resistance improves, but the risk of rupture during impacts increases
Solution Approach 1:
The tube system dynamically adjusts pressure based on impact conditions. During normal operation, bladders maintain lower pressures for safety. During impacts, flow control members allow rapid air transfer between bladders, causing localized pressure spikes that prevent pinch flats without requiring continuously high pressure that would increase rupture risk.
Solution Approach 2:
The system changes pressure parameters dynamically - maintaining lower baseline pressure for safety while enabling temporary high-pressure states during impacts through controlled air transfer between bladders. This resolves the contradiction between needing high pressure for reliability and low pressure for safety.
3Measurement precision
If multiple valves are used for each bladder, then pressure control precision improves, but device complexity and ease of operation deteriorates
Solution Approach 1:
Multiple bladders are connected through interconnected flow control members that allow air transfer between them. A single valve on one bladder can inflate the entire multi-bladder system by transferring air through the flow control members, eliminating the need for multiple valves while maintaining pressure control capability.
Solution Approach 2:
The flow control members serve multiple functions: they connect bladders, control air flow between segments, enable pressure equalization, and allow a single valve to inflate the entire system. This multi-functionality reduces the number of components needed while maintaining precise pressure control.
4Reliability
If the inner tube is designed with impact resistance features, then reliability during impacts improves, but manufacturing complexity increases
Solution Approach 1:
The tube is manufactured as segmented bladders that can be assembled by connecting pre-formed units. This segmentation allows for simpler manufacturing of individual bladder units while achieving complex impact-resistant functionality through the interconnected assembly with flow control members.
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 segmented inner tube design significantly reduces the risk of pinch flats and rim damage by allowing air pressure to spike during impacts, maintaining tire functionality and safety while operating at lower pressures, and allowing for efficient inflation through a single valve.
Implementation Method 1
a plurality of interconnections respectively configured between the plurality of bladders, the plurality of interconnections operable to control airflow between adjacent ones of the plurality of bladders
Implementation Method 2
a valve coupled to the unitary tube, the valve operable to allow introduction of air into the plurality of bladders through the plurality of interconnections
Implementation Method 3
enabling a localized increase in pressure during impacts to prevent rim strikes and maintain tire integrity
Data Source
AI summary
An inner tube comprising a unitary tube segmented into a plurality of chambers, the plurality of chambers interconnected therebetween. A plurality of interconnections may be respectively configured between the plurality of chambers wherein the plurality of interconnections may be operable to control airflow between adjacent ones of the plurality of chambers. A valve coupled to the unitary tube, the valve operable to allow introduction of air into the plurality of chambers through the plurality of interconnections.