Insulation Bag Air Evacuation Device for Burst Prevention
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Solution Overview
Problem
Conventional insulation bags for roof slopes require a controlled air flow to prevent damage to surrounding elements, which slows down the insulation process and increases the risk of degradation, as they lack an efficient air evacuation system.
Innovation Solution
The design includes a flexible air exhaust member extending longitudinally on either side of a median zone, with an outer flap to cover the air vent, allowing for efficient air evacuation and preventing the bag from bursting during filling, enabling faster insulation with reduced risk of damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If air flow is increased to speed up insulation injection, then productivity improves, but the bag may burst causing damage to surrounding elements
Solution Approach 1:
The patent incorporates an air vent integrated into the insulation bag structure before injection begins. This preliminary air evacuation pathway allows air to escape during the injection process, enabling higher airflow rates without bag rupture, thus resolving the contradiction between injection speed and damage risk
Solution Approach 2:
The air vent acts as an intermediary element that mediates between the injected air/insulation and the bag interior. It provides a controlled escape route for air, allowing the injection process to proceed at high speed while preventing bag bursting that would damage surrounding elements
2Reliability
If air flow is controlled to prevent bag bursting, then safety improves, but installation time increases
Solution Approach 1:
The air vent is pre-integrated into the bag structure, eliminating the need for manual vent creation during installation. This preliminary preparation maintains bag integrity while avoiding time loss, as the vent is already in place to manage air evacuation at optimal rates
Solution Approach 2:
The air vent automatically regulates air evacuation during the injection process without requiring external control or intervention. The system self-manages the air flow balance, maintaining bag integrity while optimizing injection speed, thus preventing time loss associated with manual control
3Productivity
If a conventional air vent is used, then air evacuation is possible, but the vent remains exposed and may allow insulation to escape
Solution Approach 1:
The air vent is designed with a flexible membrane that dynamically adjusts its state during the injection process. The membrane remains flexible to allow air evacuation but can be sealed to prevent insulation escape, adapting to different phases of the injection process to resolve the contradiction between air evacuation and material retention
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
This design allows for quicker and safer insulation by adjusting air flow during filling, reducing the risk of damage to surrounding elements and enabling faster installation compared to conventional methods.
Implementation Method 1
a flexible bag capable of containing insulation injected by means of an airflow
Implementation Method 2
an air evacuation device which extends longitudinally over a length L1 at least equal to a length L2 of the membranes
Data Source
AI summary
The invention relates to a preparatory material (2) for forming an insulation bag (1) extending longitudinally over a height H along a longitudinal axis L of the preparatory material, in the form of a flexible bag suitable for containing insulation (10) injected by means of an airflow, comprising: - a flexible vapor barrier membrane (30); - a flexible rain barrier membrane (31); - an air evacuation device (5), the membranes being coupled together on two first opposite edges (4) extending along the longitudinal axis L, characterized in that the air evacuation device takes an oblong shape which extends longitudinally on either side of a median zone at mid-height of the height H.