Door arrangement for an aircraft segment

Patent metadata

Field	Value
Publication number	US-11292571-B2
Application number	US-202016774716-A
Country	US
Kind code	B2
Filing date	Jan 28, 2020
Priority date	Jan 30, 2019
Publication date	Apr 5, 2022
Grant date	Apr 5, 2022

Abstract

A door arrangement for an aircraft segment, which door arrangement comprises a passenger door, a fuselage portion accommodating the passenger door, and a girt bar for arming and disarming an emergency slide. The passenger door is movable relative to the fuselage portion between a raised position and a lowered position. The girt bar is connectable by means of a connecting arrangement to the passenger door and/or to the fuselage portion. The connecting arrangement comprises a mechanism which is configured to, during arming of the emergency slide, actuate a locking mechanism of an engagement device fastened to the fuselage portion, in such a way that the girt bar is fixed in a decouplable manner to the engagement device.

First claim

The invention claimed is:

1. A door arrangement for an aircraft segment, comprising:
a passenger door,
a fuselage portion accommodating the passenger door, wherein the passenger door is movable relative to the fuselage portion between a raised position and a lowered position, and
a girt bar configured to arm and disarm an emergency slide, the girt bar being connectable via a connecting arrangement to at least one of the passenger door or the fuselage portion,
wherein the connecting arrangement comprises a mechanism which is configured to, during arming of the emergency slide, actuate a locking mechanism of an engagement device fastened to the fuselage portion, such that the girt bar is fixed in a decouplable manner to the engagement device,
wherein the mechanism comprises a holding element which is fastened to the passenger door and which is rotatable about a first rotary axle relative to the passenger door between a holding position and a release position,
wherein the holding element is configured, in the holding position, to connect the girt bar to the passenger door and is configured, in the release position, to release the girt bar, and
wherein the holding element comprises a lever having a receiving portion which is arranged in a region of a first end of the lever and which is configured to receive the girt bar, and hold the latter in the position relative to the passenger door, when the holding element is situated in the holding position in a disarmed state of the emergency slide, and
a first acutation portion which is arranged in the region of a second end of the lever and which is configured to actuate the locking mechanism of the engagement device such that the girt bar is fixed in a decouplable manner to the engagement device when the holding element is rotated about the first rotary axle relative to the passenger door from the holding position into the release position during the arming of the emergency slide,
wherein the first rotary axle is located between the first end of the lever and the second end of the lever.

2. The door arrangement according to claim 1 , wherein at least one of:
the mechanism of the connecting arrangement is configured to connect the girt bar to the passenger door in a disarmed state of the emergency slide, or
the engagement device of the connecting arrangement is configured to connect the girt bar to the fuselage portion in an armed state of the emergency slide.

3. The door arrangement according to claim 1 , wherein the mechanism of the connecting arrangement is furthermore configured to, during disarming of the emergency slide, actuate the locking mechanism of the engagement device fastened to the fuselage portion, in such a way that the locking mechanism is unlocked.

4. The door arrangement according to claim 1 , wherein the connecting arrangement is configured to, during the arming of the emergency slide, hold the girt bar positionally fixed relative to the passenger door situated in the lowered position.

5. The door arrangement according to claim 1 , wherein the receiving portion of the holding element comprises a second actuation portion which is configured to actuate the locking mechanism of the engagement device such that the locking mechanism is unlocked when the holding element is rotated about the first rotary axle relative to the passenger door from the release position into the holding position during the disarming of the emergency slide.

6. The door arrangement according to claim 1 , which furthermore comprises:
an activation device which is configured to activate the arming and disarming of the emergency slide,
wherein the activation device is configured to trigger a movement of the holding element between the holding position and the release position.

7. The door arrangement according to claim 1 , wherein the engagement device comprises a holding portion in which a receiving recess is formed, wherein the receiving recess is configured to receive the girt bar.

8. The door arrangement according to claim 1 ,
wherein the mechanism comprises an arresting element which is fastened to the passenger door and which is rotatable about a second rotary axle relative to the passenger door between at least one arresting position and a decoupled position,
wherein the arresting element is configured, in the arresting position, to arrest the holding element in at least one of the holding position or the release position and is configured, in the decoupled position, to permit a rotation of the holding element about the first rotary axle.

9. The door arrangement according to claim 8 , wherein the arresting element comprises at least one of:
a first arresting device which is arranged in the region of a first end of the arresting element and which is configured to engage with a complementary second arresting device of the holding element to arrest the holding element in at least one of the holding position or the release position when the arresting element is situated in the arresting position, or
a decoupling device which is arranged in the region of a second end of the arresting element and which is configured to, during the lowering of the passenger door, abut against an abutment surface, which is formed on the engagement device, to rotate the arresting element about the second rotary axle from the arresting position into the decoupled position.

10. The door arrangement according to claim 1 , wherein the locking mechanism of the engagement device comprises:
a lock which is movable between an unlocking position and a locking position, wherein the lock is configured, in the unlocking position, to permit a decoupling of the girt bar from the engagement device, and is configured, in the locking position, to fix the girt bar to the engagement device, and
a transmission mechanism which is connected to the lock and which is configured to, during at least one of the arming or the disarming of the emergency slide, be actuated by the mechanism in order to move the lock at least one of from the unlocking position into the locking position or from the locking position into the unlocking position.

11. The door arrangement according to claim 10 , wherein the transmission mechanism comprises at least one of:
a first actuation element, which is rotatable about a third rotary axle relative to the engagement device between a non-actuated position and an actuated position and which is configured to, during the arming of the emergency slide, interact with the mechanism in order to be moved from the non-actuated position into the actuated position, or
a second actuation element, which is rotatable about at least one fourth rotary axle relative to the engagement device between a non-actuated position and an actuated position and which is configured to, during the disarming of the emergency slide, interact with the mechanism in order to be moved from the non-actuated position into the actuated position.

12. The door arrangement according to claim 11 , wherein the transmission mechanism is configured as a crank-type transmission and furthermore comprises at least one of:
a first connecting element which at a first end is connected, rotatably about a fifth rotary axle, to the first actuation element and which at a second end is connected, rotatably about the fourth rotary axle, to the second actuation element, or
a second connecting element which at a first end is connected, rotatably about a sixth rotary axle, to the first actuation element and which at a second end is connected rotationally fixedly to the lock of the locking mechanism.

13. An aircraft segment which comprises a door arrangement according to claim 1 .

Assignees

• Airbus Operations Gmbh

Inventors

• Andreani Luc

Classifications

• B64C1/1423 Primary

  Passenger doors · CPC title

• B64C1/068

  Fuselage sections · CPC title

• B64D25/14

  Inflatable escape chutes · CPC title

• E05B77/00

  Vehicle locks characterised by special functions or purposes (locks specially adapted for bicycles E05B71/00; locking arrangements for non-fixed vehicle roofs B60J7/185) · CPC title

• B64D25/08

  Ejecting or escaping means · CPC title