Helicopter rotor head
US4182597A · kind A · utility
15Cited by
8References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 3, 1977 |
| Grant date | Jan 8, 1980 |
| Priority date | — |
| Expiry date | Oct 3, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C27/33
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The present rotor head for a helicopter is free of flapping hinges and free of drag or lagging hinges. The rotor blades or wings are connected to the rotor head by a plurality of connecting plates which are flexible to bending moments. These plates are inserted into the blade roots of the helicopter wings and connected to the rotor head proper. The planes defined by these connecting plates intersect in the axis of the rotor blades or wings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.