Length adjustable link

Patent metadata

Field	Value
Publication number	US-11142300-B2
Application number	US-201916655400-A
Country	US
Kind code	B2
Filing date	Oct 17, 2019
Priority date	Oct 17, 2019
Publication date	Oct 12, 2021
Grant date	Oct 12, 2021

Abstract

An exemplary length adjustable link includes a tube having an internal bore and internal surface, a first rod end having a first shaft disposed in a first end of the internal bore, a second rod end having a second shaft disposed in a second end of the internal bore, and a member threadably connecting the first rod end to the second rod end.

First claim

What is claimed is:

1. A length adjustable link comprising:
a tube having a circular internal bore and internal surface;
a first rod end having a first shaft disposed in a first end of the internal bore;
a second rod end having a second shaft disposed in a second end of the internal bore; and
a member having a first externally threaded nipple connected to internal threads of the first shaft and a second externally threaded nipple connected to internal threads of the second shaft; and
a pin positioned through the tube and the member.

2. The length adjustable link of claim 1 , wherein the internal surface is not threaded.

3. The length adjustable link of claim 1 , wherein the internal surface comprises a non-stick material.

4. The length adjustable link of claim 1 , wherein the internal surface is not threaded; and
the internal surface comprises a non-stick material.

5. A tiltrotor aircraft comprising:
a rotor blade coupled to a blade cuff and operable between an extended position and a folded position;
a swash plate configured to translate relative to a mast;
a pitch link rotatably coupled to the swash plate;
a pitch horn rotatably coupled to the pitch link;
a crank coupled to the pitch horn, the pitch horn and the crank being configured to rotate relative to the blade cuff; and
a link rotatably coupled to the crank and rotatably coupled to the rotor blade, wherein the link comprises:
a tube having an internal bore and internal surface;
a first rod end having a first shaft disposed in a first end of the internal bore;
a second rod end having a second shaft disposed in a second end of the internal bore; and
a member threadably connecting the first rod end to the second rod end.

6. The tiltrotor aircraft of claim 5 , wherein the member is rotatably locked with the tube.

7. The tiltrotor aircraft of claim 5 , wherein the member has a first externally threaded nipple connected to internal threads of the first shaft; and
a second externally threaded nipple connected to internal threads of the second shaft.

8. The tiltrotor aircraft of claim 7 , wherein the member is rotatably locked with the tube.

9. The tiltrotor aircraft of claim 8 , wherein the internal surface comprises a non-stick material.

10. The tiltrotor aircraft of claim 8 , wherein the internal surface is not threaded.

11. The tiltrotor aircraft of claim 8 , wherein the internal surface is not threaded; and
the internal surface comprises a non-stick material.

12. The tiltrotor aircraft of claim 5 , wherein the internal bore is circular; and
further comprising a pin positioned through the tube and the member, the pin rotatably locking the member with the tube.

13. The tiltrotor aircraft of claim 12 , wherein the pin is removably positioned through the tube and the member.

14. The tiltrotor aircraft of claim 12 , wherein the internal surface comprises a non-stick material.

15. The tiltrotor aircraft of claim 12 , wherein the pin is removably positioned through the tube and the member; and
the internal surface comprises a non-stick material.

16. The length adjustable link of claim 1 , wherein the pin is removably positioned through the tube and the member.

17. The length adjustable link of claim 16 , wherein the internal surface comprises a non-stick material.

Assignees

• Bell Textron Inc

Inventors

• Cravener Kyle Thomas
• Maresh Andrew
• Tzeng Chyausong

Classifications

• B64C29/0033

  the propellers being tiltable relative to the fuselage · CPC title

• B64C27/54 Primary

  Mechanisms for controlling blade adjustment or movement relative to rotor head, e.g. lag-lead movement · CPC title

• B64C11/28 Primary

  Collapsible or foldable blades · CPC title

• B64C27/50

  Blades foldable to facilitate stowage of aircraft · CPC title

• F16C2326/43

  Aeroplanes; Helicopters · CPC title