Inflatable Safety Interface for Gas Generator Sealing and Locking
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Solution Overview
Problem
Inflatable safety devices with replaceable gas generators face issues of incomplete or incorrect mounting, leading to detachment, injury, and gas leakage, which compromise their protective function.
Innovation Solution
An interface device with a positioning element, sealing element, and locking mechanism ensures correct mounting and sealing of the gas generator, featuring a detection element to confirm proper installation and an elastic return element to guide the generator into a unique final position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a replaceable gas generator is used in an inflatable safety device, then the device can be reset and reused after activation, but incomplete or incorrect mounting may cause detachment and injury
Solution Approach 1:
The gas generator is nested within a receiving part that has a specific geometry matching the generator's shape. The receiving part acts as a container that holds the gas generator securely, with the positioning element ensuring the generator is correctly seated within it. This nesting arrangement prevents detachment while maintaining replaceability.
Solution Approach 2:
A positioning element is introduced as an intermediary component between the gas generator and the receiving part. This positioning element ensures correct alignment and secure mounting of the gas generator, eliminating the risk of incomplete or incorrect mounting while preserving the replaceable nature of the generator.
2Adaptability or versatility
If a replaceable gas generator is used, then the device can be reset and reused, but incomplete mounting may create gas leakage to the exterior
Solution Approach 1:
The nested arrangement of the gas generator within the receiving part creates a contained internal space. The positioning element ensures that the generator is correctly seated, maintaining the integrity of the internal space and preventing gas leakage to the exterior while allowing the generator to be replaced and reset.
3Ease of operation
If the gas generator can be easily removed and replaced, then the device can be quickly reset, but incorrect positioning may cause rejection during ignition or improper gas direction
Solution Approach 1:
The positioning element serves as an intermediary that guides the gas generator into the correct position during insertion. It provides mechanical guidance and constraint, ensuring that the generator is properly aligned and seated before ignition can occur. This maintains reliability while allowing for easy replacement.
Solution Approach 2:
The positioning element is designed to automatically guide and position the gas generator correctly as it is inserted into the receiving part. This preliminary positioning action occurs before ignition, ensuring proper alignment and gas direction without requiring additional manual adjustment steps, thus maintaining quick reset capability.
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
Guarantees complete and safe inflation by preventing detachment and leakage, ensuring the gas generator is correctly positioned and sealed, enhancing user safety and device reliability.
Implementation Method 1
the sealing element may be designed to be deformed by a nominal amount by the gas generator in final mounting position
Data Source
AI summary
An interface device for an inflatable individual safety device designed to hold a gas generator in a receiving part of the inflatable individual safety device having at least one positioning element designed to position and hold the gas generator in a final mounting position in the receiving part, and a sealing element arranged between the receiving part and the gas generator positioned and held by the at least one positioning element, in order to obtain a seal in an internal space of the safety device to be inflated by the gas generator.