Title:
BLADE FIXING STRUCTURE FOR VERTICAL AXIS WIND TURBINE
Document Type and Number:
WIPO Patent Application WO/2023/176309
Kind Code:
A1
Abstract:
Provided is a blade fixing structure for a vertical axis wind turbine, which facilitates and secures the assembly of a rotary shaft and blades so as to accommodate an increase in the size and in the installation quantity of actual wind turbines. A vertical axis wind turbine is equipped with a rotary shaft 2 that rotates about a vertical axis relative to the direction in which wind is received, a power generating unit 6 that is coupled to the rotary shaft 2 via a bearing portion 3, and a plurality of blades 10 that are coupled to the rotary shaft 2 and that rotate about the vertical axis. The vertical axis wind turbine, wherein: a bracket 20 comprising an aluminum extruded material is fixed to an outer circumferential surface of the rotary shaft 2 along the lengthwise direction of the rotary shaft 2; and a constituent member end portion of each of the blades 10 is fixed, in an abutting state, to an outer circumferential surface of the bracket 20.
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Inventors:
PARK OKDAN (JP)
ONO TAKESHI (JP)
ISHIKAWA HIROMITSU (JP)
HIGAMI HIROYUKI (JP)
SAITO SHIGENORI (JP)
HARA YUTAKA (JP)
ONO TAKESHI (JP)
ISHIKAWA HIROMITSU (JP)
HIGAMI HIROYUKI (JP)
SAITO SHIGENORI (JP)
HARA YUTAKA (JP)
Application Number:
PCT/JP2023/005721
Publication Date:
September 21, 2023
Filing Date:
February 17, 2023
Export Citation:
Assignee:
NIKKEIKIN ALUMINIUM CORE TECH COMPANY LTD (JP)
NAT UNIV CORP TOTTORI UNIV (JP)
NAT UNIV CORP TOTTORI UNIV (JP)
International Classes:
F03D3/06; F03D13/20
Foreign References:
JP2021179184A | 2021-11-18 | |||
JP2016538451A | 2016-12-08 | |||
US20200149510A1 | 2020-05-14 | |||
US20210071646A1 | 2021-03-11 | |||
US8696315B2 | 2014-04-15 | |||
JP2019210912A | 2019-12-12 | |||
JP2005127210A | 2005-05-19 | |||
JP2016020663A | 2016-02-04 | |||
JP2012505342A | 2012-03-01 | |||
JP2005307850A | 2005-11-04 | |||
JP2020029853A | 2020-02-27 | |||
JP2018059481A | 2018-04-12 | |||
JP2009539032A | 2009-11-12 | |||
JP2022108917A | 2022-07-27 |
Attorney, Agent or Firm:
NAKAMOTO, Kikuhiko et al. (JP)
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