Device for locking a moving element such as an aircraft door and aircraft equipped with said locking device

Patent metadata

Field	Value
Publication number	US-10829969-B2
Application number	US-201615276032-A
Country	US
Kind code	B2
Filing date	Sep 26, 2016
Priority date	Sep 25, 2015
Publication date	Nov 10, 2020
Grant date	Nov 10, 2020

Abstract

A locking device which includes a hook and a dual control for locking the hook. The dual control includes a first shaft and a second shaft. The first shaft incorporates a section and is rotationally mobile between a hooked position, in which the section is accommodated in a housing of the hook and an unhooked position, in which the section is outside the housing of the hook. The second shaft incorporates a section and is rotationally mobile between a locked position, in which the section of the second shaft is accommodated in a notch in a flange of the first shaft and an unlocked position, in which the section of the second shaft is outside the notch in the flange of the first shaft.

First claim

The invention claimed is:

1. A device for locking a first mobile element of an aircraft in relation to a second fixed element, the locking device comprising:
a first part integral with one of the two elements, being the mobile element and the fixed element, and
a second part integral with the other of the two elements, the first part including a hook with a housing, the second part comprising:
a first shaft, which incorporates a flange with a notch and a section configured for cooperating with the housing of the hook, the first shaft being rotationally mobile between a hooked position, in which the section is accommodated in the housing of the hook and an unhooked position in which the section is outside the housing of the hook, and
a second shaft having a longitudinal axis parallel to a longitudinal axis of the first shaft, which incorporates a section configured for cooperating with the notch in the flange, said second shaft being rotationally mobile between a locked position, in which the section of the second shaft is accommodated in the notch in the flange of the first shaft such that the rotation of the first shaft is immobilized, and an unlocked position, in which the section of the second shaft is outside the notch in the flange of the first shaft such that the first shaft is free to rotate,
wherein the flange includes, at the periphery, a first cylindrical portion and a second cylindrical portion, the second cylindrical portion having a diameter greater than that of the first cylindrical portion, the first cylindrical portion and the second cylindrical portion being separated by the notch and a radial stop,
wherein the notch is separated from the radial stop by an arc segment of the second cylindrical portion and an arc segment of the first cylindrical portion.

2. The locking device according to claim 1 , wherein the second part includes a clevis, which incorporates a base, and wherein the hook includes an extremity with a height smaller than the distance between the base of the clevis and the section of the first shaft when said first shaft is in the unhooked position, and greater than the distance between the base of the clevis and the section of the first shaft when said first shaft is in the hooked position.

3. The locking device according to claim 2 , wherein the hook has a minimum height equal to the distance between the base and the section of the first shaft when said first shaft is in the hooked position.

4. The locking device according to claim 3 , wherein the section of the first shaft is a half disc and wherein the hook includes a peripheral edge, which incorporates a profile with a radius equal to the radius of the section of the first shaft, said profile delimiting the housing of the hook.

5. The locking device according to claim 2 , wherein the base of the clevis includes a side, which is oriented towards the first shaft and which includes at least one shim for adjusting the distance between the base and the section of the first shaft.

6. The locking device according to claim 1 , wherein the notch and the radial stop are diametrically opposite.

7. The locking device according to claim 1 , wherein the first part of the locking device includes a third shaft with an axis parallel to the axes of the first shaft and second shaft, said third shaft being accommodated in a bore of the hook such that said hook pivots around the axis of the third shaft.

8. The locking device according to claim 7 , wherein the third shaft has a diameter smaller than the diameter of the bore of the hook and wherein the first part of the locking device includes a ring with an eccentric bore interposed between the third shaft and the bore of the hook.

9. An aircraft comprising:
an opening closed by a door, the opening and the door being equipped with a locking device comprising:
a first part integral with one of the opening or the door, and
a second part integral with the other of the opening or the door, the first part including a hook with a housing, the second part comprising:
a first shaft, which incorporates a flange with a notch and a section configured for cooperating with the housing of the hook, the first shaft being rotationally mobile between a hooked position, in which the section is accommodated in the housing of the hook and an unhooked position in which the section is outside the housing of the hook, and

a second shaft, which incorporates a section configured for cooperating with the notch in the flange, said second shaft being rotationally mobile between a locked position, in which the section of the second shaft is accommodated in the notch in the flange of the first shaft such that the rotation of the first shaft is immobilized, and an unlocked position, in which the section of the second shaft is outside the notch in the flange of the first shaft such that the first shaft is free to rotate,
wherein the flange includes, at the periphery, a first cylindrical portion and a second cylindrical portion, the second cylindrical portion having a diameter greater than that of the first cylindrical portion, the first cylindrical portion and the second cylindrical portion being separated by the notch and a radial stop,
wherein the notch is separated from the radial stop by an arc segment of the second cylindrical portion and an arc segment of the first cylindrical portion.

10. A device for locking a first mobile element of an aircraft in relation to a second fixed element, the device comprising:
a first part integral with one of the two elements, being the mobile element and the fixed element, and
a second part integral with the other of the two elements, the first part including a hook with a housing, the second part comprising:
a first shaft, which incorporates a flange with a notch and a section configured for cooperating with the housing of the hook, the first shaft being rotationally mobile between a hooked position, in which the section is accommodated in the housing of the hook and an unhooked position in which the section is outside the housing of the hook, and
a second shaft having a longitudinal axis parallel to a longitudinal axis of the first shaft, which incorporates a section configured for cooperating with the notch in the flange, said second shaft being rotationally mobile between a locked position, in which the section of the second shaft is accommodated in the notch in the flange of the first shaft such that the rotation of the first shaft is immobilized, and an unlocked position, in which the section of the second shaft is outside the notch in the flange of the first shaft such that the first shaft is free to rotate,
wherein the flange includes, at the periphery, a first cylindrical portion and a second cylindrical portion, the second cylindrical portion having a diameter greater than that of the first cylindrical portion, the first cylindrical portion and the second cylindrical portion being separated by the notch and a radial stop,
wherein the notch and the radial stop are diametrically opposite.

Assignees

• Airbus Sas

Inventors

• Rabois Serge

Classifications

• B64C1/1415 Primary

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

• B64D29/06

  Attaching of nacelles, fairings or cowlings · CPC title

• E05C9/1808

  Keepers · CPC title

• E05C9/08

  with a rotary bar for actuating the fastening means {(E05B83/10 and E05B65/468 take precedence; for a plurality of drawers E05B65/465)} · CPC title

• E05C3/12

  with latching action (devices in which the securing part is formed or merely carried by a spring and moves only by distortion of the spring, e.g. snaps, E05C19/06; tilt-plate latches E05C19/007) · CPC title