Airbus has filed a patent for an aircraft door with a door opening system that includes locking devices, actuation kinematics, transmission rods, and anti-vibration devices. The design aims to enhance security and reduce vibrations within the inner door space. GlobalData’s report on Airbus gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on Airbus, Photovoltaic drones was a key innovation area identified from patents. Airbus's grant share as of January 2024 was 62%. Grant share is based on the ratio of number of grants to total number of patents.

Aircraft door with anti-vibration device for locking mechanism

Source: United States Patent and Trademark Office (USPTO). Credit: Airbus SE

The patent application (Publication Number: US20240035314A1) describes an innovative aircraft door design that includes a frame structure connecting two door skins, with an inner door space housing a door opening system. This system comprises locking devices, actuation kinematics, and transmission rods for locking the door. What sets this design apart is the inclusion of an anti-vibration device within the inner door space, mounted to the transmission rods to absorb vibrations and reduce vibrational motion. The anti-vibration device is designed to modify the resonance frequency of the transmission rods, with options for different materials like elastomers and specific configurations like outer and inner rings connected by curved links.

Furthermore, the patent application details various configurations and features of the anti-vibration device, including the use of elastomeric materials like silicone, rubber, or polyurethane, as well as specific designs with outer and inner rings connected by curved links. The device is intended to reduce vibrational motion by abutting against the frame structure or door skins, with elastic deformability for effective vibration absorption. Additionally, the mounting interface of the anti-vibration device is rigidly attached to the transmission rods at specific positions to target the intended resonance frequency. The patent also extends to cover an aircraft equipped with this innovative aircraft door design, showcasing the potential for improved safety and performance in aviation technology.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.