UNCREWED FLIGHT DEVICE, PACKAGE-DROPPING DEVICE, AND PACKAGE-CONVEYING METHOD

Title:

UNCREWED FLIGHT DEVICE, PACKAGE-DROPPING DEVICE, AND PACKAGE-CONVEYING METHOD

Document Type and Number:

WIPO Patent Application WO/2021/044528

Kind Code:

A1

Abstract:

The present invention addresses the problem of providing a flight device having a relatively light weight, and with which a package can be dropped from a flight body hovering in the air. An uncrewed flight device 1 according to one embodiment of the present invention comprises a flight body 10 that can be flown without crew, and a package-dropping device 20 attached to the flight body 10, the package-dropping device 20 dropping a package T from the flight body 10, and the package-dropping device 20 having: a linear-member-holding part 21 that holds at least the other end side of a linear member S, one end of which is connected to the package T; and a speed-restricting mechanism 22 that restricts the pullout speed of a linear member S from the linear-member-holding part 21 due to the weight of the package T.

Inventors:

INUMA TAKAYOSHI (JP)
LEE KENICHI (JP)
MIYAKE NOBUYUKI (JP)

Application Number:

PCT/JP2019/034651

Publication Date:

March 11, 2021

Filing Date:

September 03, 2019

Export Citation:

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Assignee:

RAKUTEN INC (JP)

International Classes:

B64C39/02; B64D1/12

Domestic Patent References:

WO2017078118A1	2017-05-11
WO2017216972A1	2017-12-21
WO2017078118A1	2017-05-11

Foreign References:

US20180244509A1	2018-08-30
US20160236778A1	2016-08-18
US9969494B1	2018-05-15
JPS5933857U	1984-03-02
JP2019085104A	2019-06-06
JP2016088675A	2016-05-23

Other References: