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AssigneeMitsubishi Aircraft Corporation
InventorsToshikazu SHIGETOMI, Atsumi TANAKA, Kaoru ONOHARA, Koichi HASEGAWA
Estimating the term…
There is provided a method for repairing a member comprising a fiber-reinforced plastic, which method can repair a through hole easily at a low cost. When a through hole 20 is repaired, a temporary hole 11 is formed, a fabric sheet 30 comprising reinforcing fibers is rolled into a cylindrical shape and inserted into the temporary hole 11, the fabric sheet 30 is impregnated with a resin, the resin is cured, and a new through hole 20′ is formed.
A method for repairing a member comprising a fiber-reinforced plastic, comprising the steps of:
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
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Using preformed elements: using plugs sealing in the hole
Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing…
Joining or sealing of preformed parts , e.g. welding of plastics materials; Apparatus therefor: by heating, with or without pressure
Reactive adhesives, e.g. chemically curing adhesives: heat curing adhesives
Term end not estimated
The present invention relates to a method for repairing a member comprising a fiber-reinforced plastic, which method is used to form aircraft, ships, vehicles, and the like.
In recent years, various members have been formed of a fiber-reinforced plastic (resin) using carbon fibers and the like as a reinforcement.
In the case where a member comprising a fiber-reinforced plastic is fixed to another structural member, in the case where another part or the like is attached to the member comprising a fiber-reinforced plastic, and in the like cases, a through hole is sometimes formed in the member comprising a fiber-reinforced plastic.
FIG. 1 is a view showing an example of a member to which a method for repairing a member comprising a fiber-reinforced plastic is applied.
FIGS. 2A, 2B, 2C and 2D are views showing a flow of a method for repairing a member comprising a fiber-reinforced plastic.
FIG. 3 is a view showing an example of a case where a core material is used when a fabric sheet is rolled.
The present invention will now be described in detail based on embodiments shown in the accompanying drawings.
FIGS. 1, 2A, 2B, 2C and 2D are views for explaining the method for repairing a member comprising a fiber-reinforced plastic in accordance with a first embodiment.
As shown in FIG. 1, when a through hole 20, which is formed in a member 10 comprising a fiber-reinforced plastic that is formed by impregnating reinforcing fibers such as carbon fibers with a resin and is cured, is formed slantwise, or a trouble such as delamination occurs around the through hole 20, to repair this through hole 20, first, the member 10 around the through hole 20 including a portion to be repaired is removed by cutting using various types of tools as shown in FIG. 2A. Thereby, a temporary hole (hole) 11 is formed in the member 10. This temporary hole 11 is preferably formed so as to have a minimum necessary diameter.