Blade and Fan Having the Same
AssigneeKomatsu Ltd.
InventorsToshihiko Nishiyama, Keiichi Inaba, Kengo Koshimizu
Life of this patent
Estimating the term…
Abstract
A blade of a hybrid type fan includes: a blade body 21 made of a synthetic resin; and a metallic insert 22 that is insert molded simultaneously with the blade body 21 and mounted to a mounting arm of a spider. At a corner on an outer side of a radial direction and a forward side of a rotary direction of the insert 22, a bulging portion 26 is provided to bulge toward the outer side of the radial direction and the forward side of the rotary direction. A bulging region 27 of the bulging portion 26 that the most prominently bulges toward the outer side of the radial direction is located to be forward in the rotary direction relative to a mounting center C of the insert 22 and the mounting arm along the radial direction.
Claims8
A forward-swept shaped blade used for a fan, comprising:
- a blade body made of a synthetic resin;
- and
- a metallic insert used for insert molding of the blade body and mounted to a mounting arm of a spider forming the fan, wherein
- a bulging portion is provided on the insert at a corner on an outer side of a radial direction and a forward side of a rotary direction, the bulging portion bulging toward both the outer side of the radial direction and the forward side of the rotary direction, and
- a bulging region of the bulging portion that most prominently bulges toward the outer side of the radial direction is located to be forward in the rotary direction relative to a mounting center of the insert and the mounting arm along the radial direction.
A fan with blades, comprising:
- a metallic spider;
- and
- a plurality of forward-swept shaped blades, wherein
- the blades include:
- a blade body made of a synthetic resin;
- and a metallic insert used for insert-molding of the blade body and mounted to a mounting arm of the spider,
- a bulging portion is provided on the insert at a corner on an outer side of a radial direction and a forward side of a rotary direction, the bulging portion bulging toward the outer side of the radial direction and the forward side of the rotary direction, and
- a bulging region of the bulging portion that most prominently bulges toward the outer side of the radial direction is located to be forward in the rotary direction relative to a mounting center of the insert and the mounting arm along the radial direction.
Dependencies are inferred from the claim text.