Rotating Knee Shield and Stationary Elbow Parapet for Aircraft Seat Safety
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Solution Overview
Problem
Current aircraft seat safety barriers do not effectively prevent passengers' knees and elbows from entering the aisle during takeoff, landing, and passenger loading processes, posing a safety risk.
Innovation Solution
A safety barrier system comprising a rotating knee shield and a stationary elbow parapet, both attached to the armrest, which form physical barriers to prevent knees and elbows from entering the aisle, with the knee shield rotating out of the way during these processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed barrier is used to prevent knees and elbows from entering the aisle, then safety is improved, but the barrier obstructs the aisle during loading and critical operations
Solution Approach 1:
The knee shield is designed as a rotating barrier that can pivot between a first position (blocking knee access to aisle) and a second position (clearing the aisle). This dynamic mechanism allows the barrier to adapt its state based on operational requirements, providing safety during normal flight while enabling aisle access during loading and critical operations
Solution Approach 2:
The safety barrier system is divided into separate functional components: a knee shield attached to the seat back and an elbow parapet attached to the armrest. This segmentation allows each component to be independently controlled and positioned, with the knee shield being movable while the elbow parapet remains stationary
2Ease of operation
If a rotating knee shield is used to maintain aisle accessibility, then ease of operation is improved, but the barrier may not effectively prevent knee intrusion during critical operations
Solution Approach 1:
The knee shield is positioned in the first position (blocking state) as the default condition during normal flight operations. This preliminary positioning ensures safety is maintained automatically without requiring active control, while allowing quick transition to the second position when aisle access is needed
Solution Approach 2:
The rotating mechanism acts as an intermediary between the safety requirement and the aisle accessibility requirement, allowing the knee shield to mediate between these conflicting demands by transitioning between positions based on operational context
Data Source
AI summary
The safety barrier for aircraft seats is configured for use with a commercial aircraft. The commercial aircraft further comprises one or more seats. Each individual seat selected from the one or more seats further comprises an armrest. The individual seat is configured for use with by a client. The client sits in the individual seat. The safety barrier for aircraft seats is configured for use with the armrest. The safety barrier for aircraft seats comprises a knee shield and elbow parapet. The knee shield attaches to the armrest. The elbow parapet attaches to the armrest. The knee shield is a rotating barrier. The knee shield forms a barrier that prevents a knee of the client from entering the aisle of the commercial aircraft. The elbow parapet is a stationary barrier. The elbow parapet prevents the elbow of the client from entering the aisle of the commercial aircraft.