Unmanned aerial vehicle
US11027835B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2018 |
| Grant date | Jun 8, 2021 |
| Priority date | — |
| Expiry date | Jul 9, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64U2101/30
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An unmanned aerial vehicle according to various embodiments includes: a housing; a communication circuit, wherein the communication circuit establishes wireless communication with an external controller; and a plurality of propulsion systems connected to the housing, wherein the propulsion systems include: a motor; a rotation shaft having an axis extending in a first direction, wherein a first end is connected to the motor, and wherein the rotation shaft is rotates in a first direction by the motor; a cap structure fixed to the second end of the rotation shaft, a propeller including: a hub including a through-hole formed in the first direction, such that the rotation shaft rotatably passes through the through-hole, wherein the propeller is detachably connected to the cap structure, such that, when an external force is exerted on the blade, the propeller is released from the cap structure to be freely movable along the axis toward the motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.