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Airstair system with deployable upper step

A technology for boarding ladders and steps, applied in the field of aircraft, can solve complex problems

Pending Publication Date: 2020-06-09
BOMBARDIER CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, existing mechanisms for deploying such steps can be relatively complex

Method used

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  • Airstair system with deployable upper step
  • Airstair system with deployable upper step
  • Airstair system with deployable upper step

Examples

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Embodiment Construction

[0067] In various embodiments, the airstair system and associated methods described herein can facilitate deployment and retraction of one or more deployable upper steps of an aircraft's airstair. The systems disclosed herein can allow the deployment and stowing of the upper steps to be coordinated (eg, synchronized) with the opening and closing of the doors. In some embodiments, the systems disclosed herein can be of relatively simple construction compared to other existing systems, and can also be constructed by allowing for the (e.g., substantial or any) Lifting the upper step manually while disassembled provides access below the upper step to facilitate maintenance of the airstairs. The deployable upper steps disclosed herein can provide passengers with a relatively stable and large treading surface, and can have an aesthetically pleasing and uncluttered appearance.

[0068] In various embodiments, the airstair system described herein includes a primary deployment device ...

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Abstract

An airstair system with a deployable upper step. Airstair systems and associated methods are disclosed. In one embodiment, the airstair comprises a deployable upper step, a primary deployment device and a secondary deployment device. The upper step is movable between a stowed configuration when a door of the aircraft is closed and a deployed configuration when the door is open. The primary deployment device resiliently biases the upper step toward the deployed configuration. The secondary deployment device is movable in coordination with a movement of the door and configured to drive the deployable upper step toward the deployed configuration during opening of the door and during a failure of the primary deployment device.

Description

technical field [0001] The present disclosure relates generally to aircraft, and more particularly to airstairs for aircraft. Background technique [0002] Some airplanes have built-in sets of stairs called "airstairs" that allow passengers to board and disembark from the plane. Airstairs can be built into the inside of the flap doors of the aircraft. Airstairs can eliminate the need for passengers to use moving ladders or aerobridges to board or disembark an aircraft. Some airstairs may include one or more deployable steps. However, existing mechanisms for deploying such steps can be relatively complex. Expect to make improvements. Contents of the invention [0003] In one aspect, the present disclosure describes an airstair system for an aircraft. The system includes: [0004] a deployable upper step movable between a stowed configuration when the doors of the aircraft are closed and a deployed configuration when the doors are open; [0005] a primary deployment d...

Claims

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Application Information

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IPC IPC(8): B64C1/24B64C1/14
CPCB64C1/24B64C1/1423B64C1/1461B64D9/00
Inventor 约翰·理查德·萨维奇彼得·吕韦雷米·克罗齐耶帕特里克·塞雷斯
Owner BOMBARDIER CORP
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