Resin Stopper and Elastomer Seal for Tire Repair Container
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Solution Overview
Problem
Existing flat tire repair liquid containers face issues with liquid leakage during storage and flow channel opening problems due to the deformation of rubber closing stoppers under pressure, which can lead to incomplete opening of the flow channel.
Innovation Solution
A flat tire repair liquid container with a closing stopper made from a non-elastomer resin material, combined with an elastomer sealing member and a shape-retaining member, which keeps the stopper in a restrained state during storage and allows it to open securely during tire repair work, preventing leakage and ensuring smooth operation of the flow channel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rubber closing stopper is used in the flow channel, then liquid leakage during storage can be prevented, but the stopper deforms under air pressure and becomes stuck in the flow channel, causing opening problems
Solution Approach 1:
The patent changes the material parameter of the closing stopper from elastomer (rubber) to non-elastomer resin, which fundamentally alters the stopper's deformation characteristics. This material parameter change prevents the stopper from deforming under air pressure while maintaining its sealing function, thereby resolving the contradiction between leakage prevention and operability.
Solution Approach 2:
The patent employs a composite structure combining resin (non-elastomer) for the closing stopper body with elastomer components for sealing surfaces. This composite approach allows the stopper to maintain dimensional stability from the resin while providing effective sealing through the elastomer, simultaneously achieving both leakage prevention and smooth operation.
2Reliability
If the closing stopper diameter is increased to improve sealing, then liquid leakage prevention improves, but the stopper cannot move smoothly within the flow channel, causing opening problems
Solution Approach 1:
By changing the material from elastomer to non-elastomer resin, the stopper maintains its dimensional parameters (diameter) without deformation under pressure. This allows the stopper to be sized optimally for sealing while maintaining smooth movability, as the resin material does not deform to alter the diameter during operation.
Solution Approach 2:
The patent applies different material properties to different parts of the stopper structure - the main body is made of non-elastomer resin for dimensional stability and smooth movement, while sealing surfaces incorporate elastomer properties for effective sealing. This local differentiation resolves the contradiction between sealing performance and movability.
3Ease of operation
If the closing stopper diameter is decreased to improve movability, then flow channel opening improves, but the stopper cannot sufficiently prevent liquid leakage
Solution Approach 1:
The material change to non-elastomer resin ensures the stopper maintains its designed diameter without deformation, allowing it to be sized large enough for effective sealing while remaining movable. The resin's dimensional stability eliminates the trade-off between size and movability that exists with elastomer materials.
Solution Approach 2:
The composite construction with resin body and elastomer sealing surfaces allows the stopper to achieve both large diameter (for sealing) and smooth movement. The resin provides structural integrity and dimensional stability, while the elastomer components ensure effective sealing contact.
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 effectively prevents liquid leakage during storage and ensures reliable opening of the flow channel without the stopper becoming stuck, maintaining the integrity of the repair process by using a non-deformable resin stopper and an elastomer sealing member.
Implementation Method 1
a closing stopper formed from a resin that is a non-elastomer material, the closing stopper being capable of sliding within the flow channel
Implementation Method 2
a sealing member formed from an elastomer material, the sealing member being disposed in a ring shape conforming to an inner wall surface of the flow channel and configured to close a gap between the closing stopper and the flow channel
Implementation Method 3
the flow channel is opened by pressure of air supplied to the interior of the container during flat tire repair work that moves the closing stopper within the flow channel
Data Source
AI summary
A flat tire repair liquid container is provided with: a closing stopper, which is formed from a non-elastomer material and is capable of sliding inside a flow channel; and a sealing member, which is formed from an elastomer material, is disposed in a ring shape conforming to an inner wall surface of a flow channel, closes a gap between the closing stopper and the flow channel, and holds the closing stopper at a predetermined position. During storage, the closing stopper is engaged with the sealing member to close the flow channel. During flat tire repair work, the closing stopper is pushed out from the sealing member by pressure inside the container and moved toward the outer side of the container in the flow channel to open the flow channel.