Title:
ROTOR BLADE, AXIAL-FLOW BLOWER, AND CEILING FAN
Document Type and Number:
WIPO Patent Application WO/2019/130441
Kind Code:
A1
Abstract:
A rotor blade (6) is provided with: a vane mounting plate (4) which is fixed to a shaft of a motor and rotates; and a vane (5) which is joined to the vane mounting plate (4) by means of a fastening member and rotates with the vane mounting plate (4) to form an air flow along the shaft. The vane (5) includes a vane mounting portion joined to the vane mounting plate (4) by means of the fastening member, and a vane blade portion for generating the air flow. The vane (5) has a center of gravity which, in an axial direction of an axis of rotation (AX) of the vane mounting plate (4), is positioned on the downstream side of an axis-perpendicular plane (L) which: passes the center point of a line segment connecting the center in the plate thickness of the vane (5) where the fastening member positioned frontmost in the rotating direction of the vane mounting plate (4) has the vane mounting portion fixed to the vane mounting plate (4) and the center in the plate thickness of the vane (5) where the fastening member positioned rearmost in the rotating direction has the vane mounting portion fixed to the vane mounting plate (4); and is orthogonal to the axis of rotation (AX) of the vane mounting plate (4).
Inventors:
AOKI HIROMICHI (JP)
ONO HIDEHARU (JP)
UEDA MASAHIRO (JP)
FUKUSHIMA TETSUYA (JP)
ONO HIDEHARU (JP)
UEDA MASAHIRO (JP)
FUKUSHIMA TETSUYA (JP)
Application Number:
PCT/JP2017/046753
Publication Date:
July 04, 2019
Filing Date:
December 26, 2017
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F04D25/08; F04D29/32; F04D29/34
Foreign References:
| JPS59167992U | 1984-11-10 | |||
| JPS6058894U | 1985-04-24 | |||
| JP2007170292A | 2007-07-05 | |||
| JPS59155600A | 1984-09-04 | |||
| JP2007315303A | 2007-12-06 | |||
| JPS6139499U | 1986-03-12 | |||
| US20100278646A1 | 2010-11-04 |
Attorney, Agent or Firm:
TAKAMURA, Jun (JP)
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