Active Side Stick Grip Interface for Secure Ergonomic Mounting
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Solution Overview
Problem
Existing control device systems for aircraft lack improved ergonomics and compatibility between control sticks and plinths, affecting the usability and effectiveness of aircraft control systems.
Innovation Solution
A plinth system for aircraft control sticks featuring a tubular receiving means with a plinth nut and interface for a knurled nut, along with a grip connector and adapter plate, which enhances compatibility and ergonomics by providing secure fastening, torsion prevention, and adjustable alignment, and integrates force sensors for precise control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional plinth system is used, then the control stick can be mounted, but ergonomics and compatibility are limited
Solution Approach 1:
The plinth nut is designed with a universal interface that can accommodate different control stick types and configurations. The interface comprises a knurled nut portion for gripping and a threaded portion for secure attachment, allowing the same plinth nut to be used across various control stick designs while maintaining ergonomic qualities
Solution Approach 2:
The plinth system incorporates adjustable elements that allow dynamic adaptation to different pilot preferences and control requirements. The interface design enables easy adjustment of the control stick position and orientation, providing ergonomic flexibility while maintaining secure attachment
2Reliability
If a secure fastening system is implemented, then reliability improves, but device complexity increases
Solution Approach 1:
The plinth nut combines multiple functions into a single integrated component. The knurled portion provides gripping capability while the threaded portion provides secure attachment, eliminating the need for separate fastening elements and reducing overall system complexity while maintaining high reliability
Solution Approach 2:
The interface acts as an intermediary element between the plinth flange and control stick, providing a standardized connection point that simplifies the fastening process. The threaded interface mediates between the need for secure attachment and ease of assembly, requiring only simple rotational motion to achieve reliable fastening
Data Source
AI summary
Plinth system (1) for a control stick (51) for controlling an aircraft having a plinth flange (3) includes a tubular receiving means (7) and a plinth nut (5) which at least partially encloses the receiving means of the plinth flange (3), wherein the plinth nut (5) comprises an interface (11) for fastening a knurled nut (41).