Latecoere has been granted a patent for an aircraft door featuring a dual lever system. The innovative engaging mechanism couples external and internal levers, ensuring synchronized operation through a series of stops, lugs, and an engaging pawl, enhancing safety and functionality during door operation. GlobalData’s report on Latecoere 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 Latecoere, Fiber-reinforced material joining techniques was a key innovation area identified from patents. Latecoere's grant share as of July 2024 was 48%. Grant share is based on the ratio of number of grants to total number of patents.
Aircraft door with coupled external and internal levers
The patent US12071215B2 describes an innovative aircraft door design that integrates a dual lever system for enhanced functionality. The door features a door structure with an internal face and an outer panel on the external face. It includes an external opening/closing lever that pivots between closed and open positions, and an internal opening/closing lever located on the internal face. A key component of this design is the engaging mechanism, which couples the two levers. This mechanism consists of a stop and counter-stop that work in tandem, allowing the external lever to engage the internal lever when transitioning from the closed to the open position. Additionally, the engaging pawl, which pivots on an axle connected to the external lever, plays a crucial role in this mechanism by moving between passive and active positions based on the lever's state.
Further details of the patent highlight the engaging pawl's design, which includes a heel that interacts with a support base to ensure proper positioning when the external lever is closed. The engaging mechanism may also incorporate an engaging ring that rotates with the internal lever, enhancing the synchronization between the levers. The design allows for a seamless operation of the door, with the engaging pawl pivoting into an active position when the external lever is not closed, facilitated by an elastic return element. The patent also outlines various configurations for the engaging mechanism, including the possibility of the engaging pawl being mounted directly on the external lever or on an engaging ring that rotates with it. Overall, this patent presents a comprehensive solution for aircraft door operation, emphasizing safety and efficiency through its mechanical design.
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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.
