Patent ID: 9057273
Filing Date: 2015-06-16
Classification: A63H,B64C,F01D

Abstract:
1. A multi-rotor self-propelled movable object, the movable object comprising: (a) a first rotor assembly comprising: (b) a second rotor assembly comprising: wherein the first fastening feature comprises a first aperture, a first pair of guides, and a first pair of stops, and wherein the third fastening feature comprises a second aperture, a second pair of guides, and a second pair of stops, wherein the second fastening feature comprises a first pair of protrusions, and wherein the fourth fastening feature comprises a second pair of protrusions, wherein the first propulsive force (1) includes a lift component that provides lift to the movable object, and (2) is imparted via contact between the first hub and the first adapter; and wherein the second propulsive force (1) includes a lift component that provides lift to the movable object, and (2) is imparted via contact between the second hub and the second adapter, and wherein the rotation of the first hub in the first direction imparts a rotational force component that is transmitted from the first drive shaft to the first hub via contact between the first pair of protrusions and the first pair of stops, and wherein the rotation of the second hub in the second direction imparts a rotational force component that is transmitted from the second drive shaft to the second hub via contact between the second pair of protrusions and the second pair of stops.