Molded part

Patent metadata

Field	Value
Publication number	US-9739175-B2
Application number	US-201314057734-A
Country	US
Kind code	B2
Filing date	Oct 18, 2013
Priority date	Apr 26, 2011
Publication date	Aug 22, 2017
Grant date	Aug 22, 2017

Abstract

An additional pad 27 is additionally and integrally arranged from an outer surface of a flange 17 opposite to a contacting side of the flange 17 to a small-diameter curved surface of a bend 19 and from there to an end of an outer surface of a part body 13 . On an outer surface side of the additional pad 27 , a fastening seat 27 f is formed by machining. An area end PAe of a processed area PA formed by machining is positioned on the part body 13 beyond the bend 19.

First claim

The invention claimed is:

1. A molded part made of a composite material of thermosetting or thermoplastic resin and reinforcing fibers and capable of being fastened to a counterpart with a fastener in a state contacting with the counterpart, comprising:
a part body;
a flange integrally formed at least at one end of the part body through a bend, provided with an insertion hole into which the fastener is insertable, and being able to be brought into contact with the counterpart;
an additional pad additionally and integrally arranged from an outer surface of the flange opposite to a contacting side of the flange to a small-diameter curved surface of the bend and from there to one end of an outer surface of the part body, and provided with a through hole aligning with the insertion hole of the flange to allow an insertion of the fastener; and
a fastening seat formed by machining on an outer surface side of the additional pad, the fastening seat being able to support part of the fastener, the fastening seat being perpendicular to the outer surface of the part body and being flat, wherein
an area end of a processed area formed by machining on the additional pad is positioned on the part body beyond the bend,
the additional pad is a first additional pad and the through hole is a first through hole,
a second additional pad is additionally and integrally formed on an outer surface of the contacting side of the flange and a second through hole is formed through the second additional pad so that the second through hole aligns with the insertion hole of the flange to allow an insertion of the fastener,
a flat contacting surface is formed by machining on an outer surface side of the second additional pad, wherein the contacting surface is able to be brought into contact with the counterpart and perpendicular to the outer surface of the part body,
each of the part body, the flange, and the bend is made of a composite material of thermosetting or thermoplastic resin and carbon fibers, and each of the first additional pad and the second additional pad is made of a composite material of thermosetting or thermoplastic resin and glass fibers.

2. The molded part according to claim 1 , wherein
a slope is formed at an end on the part body side of the additional pad and is gradually thinning toward a front end thereof.

3. The molded part according to claim 1 , wherein
the molded part is used for an aircraft engine to cover a plurality of fan blades in the aircraft engine; and
the part body is cylindrical and the flange is annular.

Assignees

• Ihi Corp
• Ihi Aerospace Co Ltd

Inventors

• Harada Takashi
• Shigenari Yu
• Inagaki Koichi
• Tanaka Agamu
• Ishigure Tadahiro

Classifications

• F01D9/02

  Nozzles; Nozzle boxes; Stator blades; Guide conduits {, e.g. individual nozzles (nozzle boxes F01D9/047)} · CPC title

• B29K2307/04

  Carbon · CPC title

• F05D2300/603

  Composites; e.g. fibre-reinforced · CPC title

• B29C66/543

  joining more than two hollow-preforms to form said hollow articles · CPC title

• Y02T50/672

  Cross-Sectional Technologies · mapped topic