Avionics cam retainer assembly

Patent metadata

Field	Value
Publication number	US-10197084-B1
Application number	US-201715822550-A
Country	US
Kind code	B1
Filing date	Nov 27, 2017
Priority date	Nov 27, 2017
Publication date	Feb 5, 2019
Grant date	Feb 5, 2019

Abstract

A retainer assembly is adapted to secure a removable electronic unit within an avionics equipment mounting tray. The retainer assembly includes a latch having a base portion and a handle portion. The base portion is pivotally coupled to one of the removable electronic unit and the avionics equipment mounting tray. The handle portion projects outward from the base portion. The base portion includes a cam surface adapted to releasably contact the other of the removable electronic unit and the avionics equipment mounting tray.

First claim

What is claimed is:

1. A retainer assembly for securing a removable electronic unit in an avionics equipment mounting tray of an aircraft, the retainer assembly comprising:
a latch including a base portion pivotally coupled to one of the removable electronic unit and the avionics equipment mounting tray, and a handle portion projecting outward from the base portion, wherein the base portion includes a cam surface adapted to releasably contact the other of the removable electronic unit and the avionics equipment mounting tray; and
a swing arm including a first end segment pivotally connected to the avionics equipment mounting tray at a first pivot axis, and an opposite second end portion pivotally connected to the base portion at a second pivot axis.

2. The retainer assembly set forth in claim 1 , further comprising:
a catch device carried between the latch and the avionics equipment mounting tray.

3. The retainer assembly set forth in claim 2 , wherein the latch is adapted to swing about the first pivot axis via the swing arm and between a swung clear position and a catch position, wherein the catch device is engaged when in the catch position.

4. The retainer assembly set forth in claim 3 , wherein the latch is adapted to pivot about the second pivot axis and between a released state and a retained state when in the catch position.

5. The retainer assembly set forth in claim 4 , wherein the cam surface is not in contact with the removable electronic unit when in the released state, and the cam surface is in contact with the removable electronic unit when in the retained state.

6. The retainer assembly set forth in claim 5 , wherein the cam surface is in biased contact with the removable electronic unit when in the retained state.

7. The retainer assembly set forth in claim 1 , wherein the first and second pivot axes are substantially parallel to one-another.

8. An avionics equipment assembly comprising:
a removable electronic unit;
an avionics equipment mounting tray;
a cam latch for securing the removable electronic unit in the avionics equipment mounting tray, the cam latch including a base portion pivotally coupled to the avionics equipment mounting tray, and a handle portion projecting outward from the base portion, wherein the base portion includes a cam surface adapted to releasably contact the removable electronic unit; and
a swing arm including a first end segment pivotally connected to the avionics equipment mounting tray at a first pivot axis, and an opposite second end portion pivotally connected to the base portion at a second pivot axis.

9. The avionics equipment assembly set forth in claim 8 , further comprising:
an electrical connector device carried between a forward facing face of the avionics equipment mounting tray and a rearward facing surface of the removable electronic unit, wherein the removable electronic unit is adapted to be inserted into the avionics equipment mounting tray in a rearward direction.

10. The avionics equipment assembly set forth in claim 9 , wherein the cam surface is in contact with a forward facing surface of the removable electronic unit when in a retained state.

11. The avionics equipment assembly set forth in claim 10 , wherein the first end segment is pivotally connected to a bottom wall of the avionics equipment mounting tray.

12. The avionics equipment assembly set forth in claim 11 , further comprising:
a catch device carried between the base portion and the bottom wall.

13. The avionics equipment assembly set forth in claim 12 , wherein the base portion is adapted to swing about the first pivot axis via the swing arm and between a swung clear position wherein the latch is disposed below the bottom wall, and a catch position wherein the catch device is engaged and the base portion is disposed above the bottom wall.

14. The avionics equipment assembly set forth in claim 13 , wherein the base portion is adapted to pivot about the second pivot axis and between a released state and the retained state when in the catch position.

15. The avionics equipment assembly set forth in claim 14 , wherein the cam surface is spaced from the forward facing surface when in the released state.

16. The avionics equipment assembly set forth in claim 10 , wherein the first and second pivot axes are substantially parallel to one-another.

Assignees

• Hamilton Sundstrand Corp

Inventors

• Ankney Darrell E
• Arevalo Andrei
• Gilmore Paul

Classifications

• B64D47/00 Primary

  Equipment not otherwise provided for · CPC title

• F16B21/09 Primary

  Releasable fastening devices with a stud engaging a keyhole slot · CPC title

• F16B21/02

  Releasable fastening devices locking by rotation (with snap-action F16B21/06; studs or coupling pins with resilient protrusions F16B21/08) · CPC title

• H05K7/1411

  for securing or extracting box-type drawers · CPC title

• H05K7/1409

  by lever-type mechanisms · CPC title