Patent · US Active

Blade fold mechanism

US11235858B2 · kind B2 · utility

0Cited by

15References

17Claims

0Family size

Assignee

Textron Innovations Inc. · US

Inventors

Troy Cyril Schank · Keller, US
Andrew Maresh · Lewisville, US
Chyau-Song Tzeng · Arlington, US

Key dates

Filing date	Jul 13, 2018
Grant date	Feb 1, 2022
Priority date	—
Expiry date	Oct 25, 2040

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB64C29/0033
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A mechanism for folding a rotor blade that is rotatably coupled to a blade cuff about a blade-fold axis between an extended position and a folded position. The mechanism includes 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, and a link rotatably coupled to the crank and rotatably coupled to the rotor blade. The pitch horn and the crank being configured to commonly rotate relative to the blade cuff about a crank axis in response to translation of the swash plate, wherein the crank axis passes through the blade cuff.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.