Patent · US Active

Rotorcraft rotor including a flapping abutment mechanism, and a rotorcraft

US9682775B2 · kind B2 · utility

1Cited by

27References

20Claims

0Family size

Assignee

AIRBUS HELICOPTERS · FR

Inventors

Fabien Massal · Gardanne, FR
Alain Eberhard · Velaux, FR

Key dates

Filing date	Feb 16, 2015
Grant date	Jun 20, 2017
Priority date	—
Expiry date	Jan 1, 2036

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB64C27/605
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A rotor for a rotorcraft, the rotor having a plurality of lift assemblies, together with a flapping abutment mechanism for each lift assembly. Each abutment mechanism has a projection secured to a lift assembly with an abutment end provided with an inner face and an outer face, and at least one pivotally-mounted lever extending longitudinally from a flyweight to a hook. The hook is provided with two walls in elevation and a bottom wall forming a periphery that defines the groove, a first wall in elevation having an upper bearing zone for blocking the inner face and a second wall in elevation including a lower bearing zone for blocking the outer face.

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