公开(公告)号：US20210237861A1

公开(公告)日：2021-08-05

申请号：US17049920

申请日：2019-04-16

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yonghun KANG ,  Junho PARK ,  Seunghwan JUNG ,  Soosang YANG ,  Sangjun JUNG

IPC: B64C27/00 ,  B64C39/02 ,  B64C21/04

Abstract: An unmanned aerial vehicle according to the present invention may comprise: a rotor-blade for providing thrust according to generation of main stream; and a safety guard disposed to surround the rotor-blade. The safety guard may comprise: a guide member which is disposed coaxially with the rotor-blade while having a gap between the guard member and the end of the rotor-blade, so as to stabilize, when the rotor-blade rotates, a flow field suctioned by a negative pressure, and stably boost a discharge flow when the pressure is changed to a positive pressure; and a diffuser which is disposed coaxially with and radially spaced apart from the guide member, and generates a secondary flow toward the main stream to increase a flow rate.

公开(公告)号：US20210308878A1

公开(公告)日：2021-10-07

申请号：US17266570

申请日：2019-06-27

Applicant: Samsung Electronics Co., Ltd.

Inventor： Heejong YOO ,  Kyungshik ROH ,  Cheolhee KIM ,  Soosang YANG ,  Sangjun JUNG

IPC: B25J19/00 ,  H02G3/04

Abstract: A cable guide device of an articulated robot is disclosed. The disclosed cable guide device can comprise: a base; at least one rotary arm rotatably coupled to the base in an articulated form; at least one cable passing through the base so as to be connected to the rotary arms; a cable guide block coupled to a driving unit within the base; a sliding groove formed on the outer peripheral surface of the cable guide block; and a cable friction reducing device member which is coupled to a portion of the cable accommodated in the base and which rotates along the sliding groove together with the portion of the cable according to the rotation of the rotary arms.