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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)
Application Number:
PCT/JP2023/005721
Publication Date:
September 21, 2023
Filing Date:
February 17, 2023
Export Citation:
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Assignee:
NIKKEIKIN ALUMINIUM CORE TECH COMPANY LTD (JP)
NAT UNIV CORP TOTTORI UNIV (JP)
International Classes:
F03D3/06; F03D13/20
Foreign References:
JP2021179184A2021-11-18
JP2016538451A2016-12-08
US20200149510A12020-05-14
US20210071646A12021-03-11
US8696315B22014-04-15
JP2019210912A2019-12-12
JP2005127210A2005-05-19
JP2016020663A2016-02-04
JP2012505342A2012-03-01
JP2005307850A2005-11-04
JP2020029853A2020-02-27
JP2018059481A2018-04-12
JP2009539032A2009-11-12
JP2022108917A2022-07-27
Attorney, Agent or Firm:
NAKAMOTO, Kikuhiko et al. (JP)
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