Sealing Device Downward Press Mechanism for Tire Repair
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Solution Overview
Problem
Existing sealing devices for punctured pneumatic tires require cumbersome operations involving inversion and the use of jigs, leading to potential misoperation and leakage issues.
Innovation Solution
A sealing device with a liquid agent container that can be pressed downward to open a seal member, allowing the sealing agent to flow into the tire, featuring a temporary retaining mechanism and a return prevention system to prevent separation and ensure reliable operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the device is inverted and a jig is inserted to open the seal member, then the sealing agent can be supplied into the tire, but the operation becomes troublesome and misoperation may occur
Solution Approach 1:
Instead of inverting the entire device to open the seal member, the patent inverts the approach by having the liquid agent container move downward relative to the stationary injection unit. This eliminates the need to invert the device while achieving the same seal-opening function through relative motion between components.
Solution Approach 2:
The device is divided into a movable liquid agent container and a stationary injection unit. This segmentation allows the container to be pressed downward independently to open the seal member, while the injection unit remains fixed, simplifying the overall operation and reducing the risk of misoperation.
2Ease of operation
If the liquid agent container is pressed downward to open the seal member, then the operation is simplified, but the container may separate from the injection unit due to pressure application
Solution Approach 1:
The projection on the liquid agent container is designed to engage with the catch portion on the injection unit before pressure application begins. This preliminary engagement prevents separation during the sealing agent supply process, counteracting the separating force that will be generated when pressure is applied to the container.
Solution Approach 2:
The projection and catch portion act as an intermediary mechanical connection between the liquid agent container and the injection unit. This intermediate structure provides a simple yet effective means of preventing separation without requiring complex fastening mechanisms.
3Productivity
If the seal member is opened by moving the liquid agent container downward, then the sealing agent flows out, but leakage may occur during the process
Solution Approach 1:
The seal member is opened only when the liquid agent container is pressed downward to the correct position. This preliminary positioning ensures that the seal is opened at the appropriate moment and location, preventing premature opening and associated leakage while maintaining efficient sealing agent supply.
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 device enables simple and reliable operation without inverting the device, preventing leakage and ensuring the sealing agent is effectively injected into the tire, eliminating the need for jigs and reducing the risk of misoperation.
Implementation Method 1
a supply means for applying pressure to the sealing agent and supplying the sealing agent into a pneumatic tire
Implementation Method 2
the liquid agent container is configured so that it can be pressed downward and moved downward towards the injection unit to open the seal member
Data Source
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AI summary
Provide a sealing device with which simple and reliable operation can be performed. When stored, a liquid agent container, in which a sealing agent is contained, is temporarily held above a injection unit. When the liquid agent container is forcibly pressed downward in use, the upper end of a pressing jig penetrates through an aluminum seal into the container, and the sealing agent flows out to a compressor unit is activated and compressed air is supplied into the liquid agent container to place the pressurized sealing agent into a pneumatic tire through a joint hose.