公开(公告)号：US20230159189A1

公开(公告)日：2023-05-25

申请号：US17921622

申请日：2021-05-27

Applicant: Min Cheol LEE

Inventor： Min Cheol LEE

IPC: B64U10/10 ,  B64U30/20 ,  F16B21/12

CPC classification number: B64U10/10 ,  B64U30/20 ,  F16B21/12

Abstract: A drone propeller of the present invention includes a plurality of blades and a rotary shaft, wherein the blades comprise a rotation retaining unit connected to the rotary shaft side, a separation and detachment unit that is on the outer side of the blades and is to be separated when damaged, and a breakage inducing unit which connects the rotation retaining unit and the separation and detachment unit and is damaged during a collision.