Door for cargo airplane

Patent metadata

Field	Value
Publication number	US-11433985-B2
Application number	US-201916726526-A
Country	US
Kind code	B2
Filing date	Dec 24, 2019
Priority date	Dec 31, 2018
Publication date	Sep 6, 2022
Grant date	Sep 6, 2022

Abstract

Door for cargo airplane, wherein a cargo compartment is accessible from the outside of the fuselage through an opening for loading goods provided with the door. The door is provided with a first operating handle accessible from the outside of the door and used to lock/unlock the pins that are used to connect the door to the fuselage and control the closing/opening of a ventilation door; and a second operating handle accessible from the outside of the door for advancing/retracting the pins in/from respective seats. According to the invention, the door is provided with a third handle accessible from the inside of the door and mechanically interconnected with the first handle for locking/unlocking the pins and controlling the closing/opening of the ventilation door; and a fourth operating handle accessible from the inside of the door and mechanically interconnected with the second handle for advancing/retracting the pins in/from respective seats.

First claim

The invention claimed is:

1. A door ( 1 ) of a cargo airplane ( 2 ), wherein a cargo compartment ( 3 ) of the cargo airplane is accessible from the outside of the fuselage ( 5 ) through an opening of the cargo airplane for loading goods ( 6 ), the door being provided with:
a first locking and unlocking device ( 10 ) provided with a first operating handle ( 11 ) accessible from the outside of the door ( 1 ) and the first operating handle being angularly movable between a first locking position and a second unlocking position, and the first locking and unlocking device comprising a first transmission ( 13 ) configured to transmit the rotation of the first handle ( 11 ) to a first shaft ( 14 ) angularly movable about its axis (A) to control a locking and unlocking mechanism ( 15 ), the locking and unlocking mechanism comprising of pins ( 16 ) that when in use are used to connect the door ( 1 ) to the fuselage ( 5 ) and to control the closing and opening of a ventilation door ( 27 ), the ventilation door used for connecting the cargo compartment ( 3 ) with the outside of the fuselage ( 5 );
a first latching and unlatching device ( 20 ) provided with a second operating handle ( 21 ) accessible from the outside of the door ( 1 ) and the second handle being angularly movable between a first latching position and a second unlatching position, and the second latching and unlatching device comprising a second transmission ( 23 ) configured to transmit the rotation of the second handle ( 21 ) to a second shaft ( 24 ) angularly movable about its axis (B) to operate a mechanism controlling an advancement and a retraction of the pins ( 16 ) into and away from respective seats;
the door characterized in that it comprises:
a second locking and unlocking device ( 30 ) provided with a third operating handle ( 31 ) accessible from the inside of the door ( 1 ) and the third handle angularly movable between a first locking position and a second unlocking position, and the second locking and unlocking device comprising a third transmission ( 33 ) configured to transmit the rotation of the third handle ( 31 ) to the first shaft ( 14 ) so that the first handle ( 11 ) and the third handle ( 31 ) are mechanically interconnected and control the same first shaft ( 14 ) to allow locking and unlocking of the pins ( 16 ) and thereby closing and opening of the ventilation door ( 27 );
a second latching and unlatching device ( 40 ) provided with a fourth operating handle ( 41 ) accessible from the inside of the door ( 1 ) and the fourth handle angularly movable between a first latching position and a second unlatching position, and the second latching and unlatching device comprising a fourth transmission ( 43 ) configured to transmit the rotation of the fourth handle ( 41 ) to said second shaft ( 24 ) so that the second handle ( 21 ) and the fourth handle ( 41 ) are mechanically interconnected and control the second shaft ( 24 ) for advancing and a retracting the pins ( 16 ) into and away from respective seats.

2. The door according to claim 1 , wherein a safety device ( 50 ) is provided with a fifth mechanical safety handle ( 51 ) accessible from the inner side ( 1 c ) of the door ( 1 ) and angularly movable between a first locking position and a second unlocking position and comprising a fifth transmission ( 53 ) configured to actuate a retaining element ( 54 ) coupling/uncoupling with an inner portion of the first handle ( 11 ), alternately arranging the first handle ( 11 ) in a first state in which the angular rotation of the first handle ( 11 ) is prevented and in a second state in which the angular rotation of the first handle ( 11 ) is permitted.

3. The door according to claim 2 , wherein the safety device ( 50 ) comprises the fifth mechanical safety handle ( 51 ) angularly movable about a third shaft ( 60 ), an extension ( 61 ) extending radially from the third shaft ( 60 ) and having a free end ( 60 - a ), the retaining member ( 54 ) that is hinged about an axis parallel to the third shaft ( 60 ) and is provided with a first end portion ( 54 - a ) interconnected with the free end ( 60 - a ) through a cable ( 62 ); the retaining element ( 54 ) being provided with a second end portion ( 54 - b ) shaped to engage an inner portion of the first handle ( 11 ) to prevent its angular rotation if it is in the first state.

Assignees

• Leonardo Spa

Inventors

• Di Tota Antonello
• Piccolo Gaetano

Classifications

• E05B85/22

  Rectilinearly moving bolts · CPC title

• E05B79/20

  using flexible connections, e.g. Bowden cables · CPC title

• E05B83/22

  for luggage compartments at the side of the vehicle, e.g. of buses or camper vans · CPC title

• B64C1/1415 Primary

  Cargo doors, e.g. incorporating ramps · CPC title

• E05Y2900/502

  for aircraft or spacecraft · CPC title