Flotation Bladder Vest Lateral Expansion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional aircrew survival vests, such as the CMU-33, face issues with the thickness of flotation collars causing discomfort and restricting head movement, and inflated collars obstructing access to and visibility of survival equipment.
Innovation Solution
A survival vest design featuring a bladder-containing pouch that inflates to push abdominal sections laterally, allowing for unobstructed access to equipment and reducing collar thickness, thereby minimizing interference with flight helmets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional flotation collar is attached to the vest, then flotation capability is provided, but the collar thickness causes discomfort and restricts head movement
Solution Approach 1:
The flotation bladder is positioned laterally within the vest body rather than using a traditional front-attached collar, moving the flotation function to a different spatial dimension that does not interfere with head movement or helmet wear
2Reliability
If a flotation collar is attached to the vest, then flotation capability is provided, but the inflated collar blocks visibility and access to survival equipment
Solution Approach 1:
The flotation function is extracted from the traditional collar position and integrated into the vest body structure, removing the obstructing element from the front view while preserving flotation capability through lateral bladder expansion
3Reliability
If a thick flotation collar is used, then flotation capability is ensured, but it causes rubbing against the flight helmet and creates fatigue
Solution Approach 1:
The flotation function is extracted from the collar region that contacts the helmet, eliminating the source of rubbing and fatigue while maintaining flotation capability through the integrated lateral bladder system
Solution Approach 2:
The flotation mechanism is relocated to a lateral dimension within the vest body, removing the vertical thickness that causes helmet contact and discomfort in the shoulder region
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 vest provides improved comfort and accessibility to survival equipment by reducing collar thickness and allowing for easier inflation without obstructing the wearer's view or movement.
Implementation Method 1
An inflatable bladder may be contained within the bladder containing pouch and may be configured to expand outside the bladder containing pouch through a bladder release gap upon inflation
Data Source
AI summary
A survival vest may include a vest body. The vest body may include a bladder containing pouch extending through left front, left shoulder, scapular, right shoulder and right front sections. That pouch may include a bladder release gap. A plurality of equipment attachment loops may be located on exterior faces of the vest. An inflatable bladder may be contained within the bladder containing pouch and may be configured to expand outside the bladder containing pouch through a bladder release gap upon inflation so as to push a left abdominal section of the vest body to the left and push a right abdominal section of the vest body to the right.