Cockpit Armrest Interface for Precise Cursor Control Under Vibration
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Solution Overview
Problem
The integration and use of multifunction screens in aircraft cockpits are challenging due to vibrations and movements, making precise handling of man-machine interfaces difficult, especially when transitioning between mouse-type interfaces and touch screens.
Innovation Solution
A man-machine interface with a base attached to a vehicle console, featuring an ergonomic arm rest with a C-shaped section, a thumb notch, and a palm rest, combined with a designation means such as a touchpad, trackball, or button, allowing precise control of a cursor on a display screen even during vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a mouse-type interface or trackpad is used in an aircraft cockpit, then the user can control the cursor on the display screen, but the vibrations and movements in the cockpit make it difficult to handle the interface precisely
Solution Approach 1:
The patent combines the arm rest and palm support into a single integrated structure that also houses the designation means (trackpad or mouse). This merging creates a unified support system that stabilizes the user's hand and wrist while providing precise control over the cursor, effectively resolving the contradiction between ease of operation and reliability in vibrating environments.
Solution Approach 2:
The support structure is segmented into distinct functional zones: an arm rest portion for supporting the forearm, a palm support portion for stabilizing the hand, and a designation means portion for cursor control. This segmentation allows each zone to be optimized for its specific function while working together to maintain hand position stability during vibrations.
2Adaptability or versatility
If the multifunction screen is touch-sensitive, then the user can interact directly with the screen, but the user experiences difficulties in moving his hand precisely between the mouse-type interface and the touch screen
Solution Approach 1:
The patent merges the mouse-type interface and touch screen into a single integrated unit where both interaction methods are available in close proximity. The support structure positions both the designation means and touch screen within easy reach of the user's hand, allowing seamless switching between interaction modes without requiring large hand movements, thus maintaining precision while enhancing versatility.
Data Source
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AI summary
The present invention relates to a human-machine interface (10) for a vehicle (1) equipped with a designation means (40). The interface (10) comprises a base and a support (20) extending vertically from said base (15). A notch (30) is formed in a lateral face (22) of said support (20) along an elevational direction (Z) and is shaped like a thumb. An upper face (21) of the support includes an ergonomic armrest (35) having two raised edges (36) extending symmetrically on either side of a longitudinal axis (AX) of symmetry of the armrest (35). A front face (25) of the support extends in elevation from the base (15) of a lower portion (25') on which the designating means (40) is arranged to an upper portion (25") curved to support a user's palm.