Floor Fixing Assembly Clamping Split Pin
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Solution Overview
Problem
Modern commercial aircraft require flexible interior configurations, particularly rapid adjustments in seat spacings to accommodate different classes, but conventional seat rail systems are inflexible and difficult to reconfigure quickly.
Innovation Solution
A floor fixing assembly with retaining pegs and frame fixing elements, made of stainless steel and aluminum respectively, allows for rapid and secure attachment of frames to the vehicle floor using a clamping device, enabling variable and adaptable seating arrangements by forming a form-fit connection that optimizes load dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional seat rail systems with recurrent openings and constrictions are used, then seats can be attached at predefined intervals, but the system is inflexible and difficult to reconfigure quickly
Solution Approach 1:
The seat rail system is segmented into modular components: retaining pegs fixed to the floor, frame fixing elements with receiving spaces, and clamping devices. This segmentation allows individual components to be independently positioned and assembled, enabling rapid reconfiguration of seat arrangements without requiring complex adjustments to the entire rail system.
Solution Approach 2:
The system transitions from a static, predefined configuration to a dynamic, adjustable configuration. The clamping device enables the frame fixing element to be quickly attached and detached from the retaining peg, allowing the seat positions to be dynamically changed between different classes (Business and Economy) based on operational requirements.
2Adaptability or versatility
If a rapid reconfiguration system is implemented, then adaptability improves, but the load absorption capacity may be compromised
Solution Approach 1:
The retaining peg features a rounded end surface that interfaces with the receiving space in the frame fixing element. This curved geometry creates a form-fit connection that distributes mechanical loads effectively across the contact surfaces, ensuring high load absorption capacity while maintaining the ability for rapid attachment and detachment through the clamping device.
Solution Approach 2:
The system merges two functions into a unified connection mechanism: the form-fit geometric connection provides structural strength and load bearing, while the clamping device provides rapid attachment and detachment capability. This combination allows the system to achieve both high load absorption capacity and fast reconfiguration speed without compromising either requirement.
3Strength
If a form-fit connection is used to optimize load dissipation, then connection strength improves, but the complexity of the fixing assembly increases
Solution Approach 1:
The complex form-fit connection system is segmented into simple, standardized components: the retaining peg with its specific geometric shape, the frame fixing element with the matching receiving space, and the clamping device. Each component has a simple individual structure, but together they create a robust form-fit connection that optimizes load dissipation while keeping individual part complexity low.
Data Source
AI summary
A floor fixing assembly for releasable fixing of a leg of a frame to a vehicle floor comprises at least one retaining peg which can be fixed to the vehicle floor. The floor fixing assembly furthermore comprises a frame fixing element, which is configured to be connected to the leg of the frame and comprises at least one receiving space for receiving the retaining peg. A clamping device is configured to be introduced into the receiving space of the frame fixing element in order to connect the frame fixing element to the retaining peg by form fit.