Device for manufacturing fiber-reinforced plastic molded article

Patent metadata

Field	Value
Publication number	US-11440274-B2
Application number	US-201615574049-A
Country	US
Kind code	B2
Filing date	Aug 16, 2016
Priority date	Sep 11, 2015
Publication date	Sep 13, 2022
Grant date	Sep 13, 2022

Abstract

An object is to provide a device and method for manufacturing a fiber-reinforced plastic molded article, whereby two members can be accurately positioned with respect to each other upon integral molding of the members via a VaRTM method. A device for manufacturing a fiber-reinforced plastic molded article includes a skin mold in which a skin, which is a cured fiber-reinforced composite member, is mounted; a stringer mold that is configured to accommodate a stringer, which is a fabric to be joined to the skin; and a folded plate that is configured to accommodate the stringer mold and includes a positioning portion for positioning with respect to a positioning portion provided on the skin.

First claim

The invention claimed is:

1. A device for manufacturing a fiber-reinforced plastic molded article, the device comprising:
a first mold in which a cured fiber-reinforced composite member is mounted;
a second mold that accommodates a fabric to be joined to the fiber-reinforced composite member; and
a folded plate comprising a plurality of recessed grooves and a plurality of first protruding portions or first recessed portions and having a wave-shaped cross section, the plurality of recessed grooves accommodating so as to cover an outer surface of the second mold, and the plurality of first protruding portions or first recessed portions being disposed only along a longitudinal direction of the recessed grooves so as to sandwich outermost recessed grooves of the plurality of recessed grooves from outside in a direction intersecting the longitudinal direction of the outermost recessed grooves,
wherein a plurality of the second recessed portions or second protruding portions are disposed on a surface of the fiber-reinforced composite member along a longitudinal direction of the fiber-reinforced composite member, and
the folded plate is positioned relative to the fiber-reinforced composite member by the first protruding portions of the folded plate inserted into the second recessed portions disposed on the fiber-reinforced composite member in a case the first protruding portions are disposed on the folded plate, or, by the second protruding portions disposed on the fiber-reinforced composite member inserted into the first recessed portions of the folded plate in a case the first recessed portions are disposed on the folded plate.

2. The device for manufacturing a fiber-reinforced plastic molded article according to claim 1 that are used to manufacture the fiber-reinforced plastic molded article by joining the fabric to the fiber-reinforced composite member and forming into the fiber-reinforced plastic molded article.

3. The device for manufacturing a fiber-reinforced plastic molded article according to claim 1 ,
wherein sealing portions are disposed between the first mold and the folded plate on a periphery portion of the folded plate, and
recessions that correspond to the sealing portions are disposed on the folded plate.

4. The device for manufacturing a fiber-reinforced plastic molded article according to claim 1 ,
wherein the folded plate includes the plurality of recessed grooves and the plurality of first protruding portions or first recessed portions on one side thereof, and a plurality of another recessed grooves and a plurality of another first protruding portions or first recessed portions on another side thereof.

5. A device for manufacturing a fiber-reinforced plastic molded article, the device comprising:
a mold that accommodates a fabric to be joined to a cured fiber-reinforced composite member; and
a folded plate comprising a plurality of recessed grooves and a plurality of protruding portions and having a wave-shaped cross section, the plurality of recessed grooves accommodating so as to cover an outer surface of the mold, and the plurality of protruding portions being disposed only along a longitudinal direction of the recessed grooves so as to sandwich outermost recessed grooves of the plurality of recessed grooves from outside in a direction intersecting the longitudinal direction of the outermost recessed grooves,
wherein a plurality of holes are disposed on a surface of the fiber-reinforced composite member along a longitudinal direction of the fiber-reinforced composite member, and
the folded plate is positioned relative to the fiber-reinforced composite member by the protruding portions of the folded plate inserted into the holes disposed on the fiber-reinforced composite member.

6. The device for manufacturing a fiber-reinforced plastic molded article according to claim 5 that are used to manufacture the fiber-reinforced plastic molded article by joining the fabric to the fiber-reinforced composite member and forming into the fiber-reinforced plastic molded article.

7. A device for manufacturing a fiber-reinforced plastic molded article, the device comprising:
a first mold in which a cured fiber-reinforced composite member is mounted; and
a bladder made of flexible resin comprising a recessed groove that accommodates a fabric to be joined to the fiber-reinforced composite member and a plurality of first protruding portions or first recessed portions being disposed only along a longitudinal direction of the recessed grooves so as to sandwich outermost recessed grooves of the plurality of recessed grooves from outside in a direction intersecting the longitudinal direction of the outermost recessed grooves,
wherein the bladder includes an inner surface having dimension and shape corresponding to the fabric to be joined to the fiber-reinforced composite member, and is reinforced by reinforcing members made of a glass fiber at an area where the fabric is joined to the fiber-reinforced composite member, the reinforcing members being embedded in the bladder and having a shape corresponding to a shape of a joining portion of the fiber-reinforced composite member and the fabric,
a plurality of second recessed portions or second protruding portions are disposed on a surface of the fiber-reinforced composite member along a longitudinal direction of the fiber-reinforced composite member, and
the bladder is positioned relative to the fiber-reinforced composite member by the first protruding portions of the bladder inserted into the second recessed portions disposed on the fiber-reinforced composite member in a case the plurality of first protruding portions are disposed on the bladder, or, by the second protruding portions disposed on the fiber-reinforced composite member inserted into the first recessed portions of the bladder in a case the first recessed portions are disposed on the bladder.

8. The device for manufacturing a fiber-reinforced plastic molded article according to claim 7 that are used to manufacture the fiber-reinforced plastic molded article by joining the fabric to the fiber-reinforced composite member and forming into the fiber-reinforced plastic molded article.

9. The device for manufacturing a fiber-reinforced plastic molded article according to claim 7 ,
wherein sealing portions are disposed between the first mold and the bladder on a periphery portion of the bladder, and
recessions that correspond to the sealing portions are disposed on the first mold.

Assignees

• Mitsubishi Heavy Ind Ltd

Inventors

• Tokutomi Hiroshi
• Shimono Kodai

Classifications

• B29C33/303 Primary

  centering mould parts or halves, e.g. during mounting · CPC title

• B29L2031/3082

  Fuselages · CPC title

• B29D99/0014

  provided with ridges or ribs, e.g. joined ribs · CPC title

• B29C70/42

  for producing articles of definite length, i.e. discrete articles · CPC title

• B29C70/541 Primary

  Positioning reinforcements in a mould, e.g. using clamping means for the reinforcement (positioning inserts in moulds B29C33/12; lay-up on a mould B29C70/30) · CPC title