Locking mechanism

Patent metadata

Field	Value
Publication number	US-11512511-B2
Application number	US-201916546697-A
Country	US
Kind code	B2
Filing date	Aug 21, 2019
Priority date	Aug 21, 2018
Publication date	Nov 29, 2022
Grant date	Nov 29, 2022

Abstract

A locking mechanism comprises an S-shaped locking member which comprises respective locking hooks arranged at the end of opposed arms of the locking member. A pivot is arranged between the arms of the locking member. The locking member rotates around the axis (A) of the pivot. The locking mechanism further comprises a coupling for coupling the locking member to an actuator for rotating the locking member around the pivot axis (A). The coupling comprises at least one coupling element, an actuator coupling for coupling the at least one coupling element to the actuator and first and second drive couplings for coupling the at least one coupling element independently to each arm of the locking member for transmitting rotational movement thereto, such that failure of one arm of the locking member will not cause loss of drive to the other arm of the locking member.

First claim

The invention claimed is:

1. A locking mechanism comprising:
an S-shaped locking member comprising respective locking hooks arranged at an end of opposed arms of the locking member;
a pivot arranged between the opposed arms of the locking member and around whose axis (A) the locking member rotates;
a coupling for coupling the locking member to an actuator for rotating the locking member around the pivot axis (A), the coupling comprising:
at least one coupling element;
an actuator coupling for coupling the at least one coupling element to the actuator; and
first and second drive couplings for coupling the at least one coupling element independently to each arm of the locking member for transmitting rotational movement thereto, such that failure of one arm of the locking member will not cause loss of drive to the other arm of the locking member;
wherein the first and second drive couplings each comprise a dog element engaging with the at least one coupling element and the locking member;
wherein the dog element is a drive pin or bolt extending from the respective locking member arm;
wherein the drive pin or bolt extends through the at least one coupling element and the respective locking member arm; and

wherein the dog element is received in an open ended slot formed in an end of a coupling element.

2. A locking mechanism as claimed in claim 1 , wherein the at least one coupling element comprises a plate.

3. A locking mechanism as claimed in claim 1 , wherein an axis (B) of the slot extends at an acute angle to an axis (C) passing between the dog elements and through the pivot axis (A).

4. A locking mechanism as claimed in claim 1 , wherein the at least one coupling element is located in a recess formed in a face of the locking member.

5. A locking mechanism as claimed in claim 1 , comprising a pair of coupling elements, arranged on opposed faces of the locking member so as to sandwich a portion of the locking member therebetween.

6. A locking mechanism as claimed in claim 1 , wherein the locking member ( 4 ) is formed as a unitary, one piece element.

7. A locking mechanism as claimed in claim 1 , wherein the locking member comprises two separate opposed arms each pivotally mounted about the pivot axis (A).

8. A locking mechanism as claimed in claim 1 , comprising a single coupling element.

9. A locking mechanism as claimed in claim 8 , wherein the locking member comprises two separate opposed arms each pivotally mounted about the pivot axis (A) and the single coupling element is sandwiched between the opposed arms of the locking member.

10. A locking mechanism as claimed in claim 1 , wherein the actuator coupling comprises an arm extending laterally from the coupling element.

11. A locking mechanism as claimed in claim 1 , further comprising the actuator coupled to the actuator coupling for rotating the locking member around the pivot axis (A).

Assignees

• Goodrich Actuation Systems Ltd

Inventors

• Timms Jack William
• Hudson Tim

Classifications

• E05C3/02

  without latching action · CPC title

• F16B7/185 Primary

  with a node element · CPC title

• E05C3/34

  with simultaneously operating double bolts {(locks for sliding wings with bolts pivoting about an axis parallel to the wings E05B65/0835, comprising simultaneously pivoting double hook-like locking members E05B65/0858)} · CPC title

• F16B39/04

  with a member penetrating the screw-threaded surface of at least one part, e.g. a pin, a wedge, cotter-pin, screw · CPC title

• Y10T292/1045

  Operating means · CPC title