Sealing Agent Container Retention Mechanism

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional sealing and pump-up devices for pneumatic tires risk leaking of the sealing agent when the liquid agent container is mistakenly forcibly removed, leading to potential damage to the casing body.

Innovation Solution

A sealing and pump-up device design featuring a seal opening device with a retaining member that maintains the sealing agent container's mounted state, while a weaker fixing force of the seal opening device's fixing section allows for safe removal without leakage, utilizing a seal opening device with a female member and male member configuration, such as an indentation-shaped hole and pin, nut and bolt, or screw, to secure the device to the casing body.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the liquid agent container is fixed to the device main body by screwing the outflow section into the device main body, then the sealing agent can be fed into the tire, but the threaded portion may become loose when an operator mistakenly attempts to forcibly remove the container, leading to leakage

Engineering Contradiction:
Improvesealing agent containmentVSAvoidcontainer removal
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The device is divided into separate functional components: the liquid agent container, the seal opening device, and the device main body. The container can be independently removed without affecting the main device structure, allowing safe disposal or replacement without risking damage to the device body or leakage of sealing agent.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The seal opening device is extracted as a separate component that can be removed from the device main body. This allows the liquid agent container to be safely detached and disposed of without the risk of the threaded portion becoming loose and causing leakage, as the seal opening device serves as an intermediary that protects the container during removal.

Inventive Principle:
Principle #2Taking out (Extraction)

2Stability of the object's composition

If the seal opening device is strongly fixed to the casing body, then the device structure is stable, but the device cannot be safely removed or adjusted

Engineering Contradiction:
Improvedevice structure stabilityVSAvoiddevice removal capability
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The fixing mechanism between the seal opening device and the casing body is designed to be dynamically adjustable. The device can be firmly fixed during operation to maintain structural stability, but can also be easily removed or adjusted when needed, providing both stability and adaptability through a reversible fixing mechanism.

Inventive Principle:
Principle #15Dynamics

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

Prevents leakage of the sealing agent and protects the casing body from damage during attempted removal of the sealing agent container by maintaining the mounted state and adjusting the fixing force as needed.

Implementation Method 1

a compressed air supply member that is connected to the seal opening device and supplies compressed air into the sealing agent container body sealed with the seal member

Methodology Applied
Scientific EffectCompressed air pressure: Pressure Increase

Data Source

PatentEP2422960B1Sealing and pump-up device
Publication Date: 2017.06.28 BRIDGESTONE CORP
  • EP2422960B1 patent drawingFigure 1
  • EP2422960B1 patent drawingFigure 2
  • EP2422960B1 patent drawingFigure 3

AI summary

A sealing and pump-up device capable of suppressing sealing agent contained in a sealing agent container body from leaking and preventing damage to a casing body even if an operator mistakenly attempts to remove the sealing agent container body. A connection body 70 is retained to a seal opening device 60 by fitting force between first claws 94A and a leg portion 36 and between second claws 96A and the leg portion 36. An operator might conceivably mistakenly attempt to remove a liquid agent container 18 from the seal opening device 60. However, the fixing force of the screw 128 in the circular hole 122 is determined by such factors as the shape of each member so as to be weaker than the sum of the fitting force (retaining force) between the first claws 94A and the leg portion 36 and the fitting force (retaining force) between the second claws 96A and the leg portion 3 6. Accordingly, fixing of the screw 128 in the circular hole 122 is released if an operator attempts to remove the liquid agent container 18 from the seal opening device 60, and the sealing agent 32 contained in the liquid agent container 18 can be suppressed from leaking and damage to the casing body 16 can also be prevented.