Title:
HOLLOW STRUCTURE AND PROPELLER BLADE
Document Type and Number:
WIPO Patent Application WO/2023/074316
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a production-friendly, high-strength, light-weight, and high-quality hollow structure, particularly a propeller blade, and is intended to provide a hollow structure made of resin in which a skin portion forming an outer surface and holding portions supporting the skin portion from the inside are integrated, and which has an internal space. At least one of the holding portions defines a line segment with a minimum length connecting a certain joint point and a joint surface facing a joint surface in which the joint point is included. In a cross section (referred to as "cross section 1" for convenience sake) taken across the structure in a plane including a cross section passing the center of the line segment and orthogonal to the line segment, a line ("line 1" for convenience sake) connecting the centers of the short sides of a rectangle circumscribing the cross section and having a minimum area intersects the skin portion and the holding portion at three or more points.
Inventors:
YAMANAKA YUSUKE (JP)
MATSUSHIMA SHOGO (JP)
NISHIZAKI AKIHIKO (JP)
SEIKE SATOSHI (JP)
MATSUSHIMA SHOGO (JP)
NISHIZAKI AKIHIKO (JP)
SEIKE SATOSHI (JP)
Application Number:
PCT/JP2022/037595
Publication Date:
May 04, 2023
Filing Date:
October 07, 2022
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
F03D1/06; B64C11/16
Foreign References:
| US20180080432A1 | 2018-03-22 | |||
| JP2004245174A | 2004-09-02 | |||
| JP2020094086A | 2020-06-18 | |||
| JPS61139596A | 1986-06-26 | |||
| US20100215498A1 | 2010-08-26 | |||
| JP2011137386A | 2011-07-14 | |||
| JP2017129091A | 2017-07-27 | |||
| JP6066548B2 | 2017-01-25 | |||
| EP3556544A1 | 2019-10-23 |
Download PDF:
Previous Patent: AIRFLOW SIMULATION TERMINAL DEVICE AND AIRFLOW SIMULATION METHOD
Next Patent: OXYGEN SCAVENGER
Next Patent: OXYGEN SCAVENGER