Invention Grant
- Patent Title: Method for manufacturing fiber-reinforced resin bolt and fiber-reinforced resin bolt
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Application No.: US16961691Application Date: 2019-01-11
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Publication No.: US12076942B2Publication Date: 2024-09-03
- Inventor: Kenji Tsuchida , Yasuhiro Furuta
- Applicant: TAKAI CORPORATION
- Applicant Address: JP Gifu
- Assignee: TAKAI CORPORATION
- Current Assignee: TAKAI CORPORATION
- Current Assignee Address: JP Gifu
- Agency: Hedman & Costigan, P.C.
- Agent James V. Costigan; Kathleen A. Costigan
- Priority: JP 18002619 2018.01.11
- International Application: PCT/JP2019/000777 2019.01.11
- International Announcement: WO2019/139149A 2019.07.18
- Date entered country: 2020-07-12
- Main IPC: F16B35/04
- IPC: F16B35/04 ; B29C70/08 ; B29C70/30 ; B29C70/48 ; F16B33/06 ; B29K71/00 ; B29K307/04 ; B29L1/00

Abstract:
Provided is a fiber-reinforced resin bolt having a strength higher than that of a conventional fiber-reinforced resin bolt. A fiber-reinforced resin bolt 1 formed by a winding step of winding a CFRP resin tape 14, which is formed in a band shape by integrating CFRP 12 with a thermosetting resin in such a manner that the CFRP 12 is oriented in a longitudinal direction, so that the CFRP 12 is arranged concentrically around a winding axis, thereby forming a CFRP resin tape layer 10; and a curing step of placing the CFRP resin tape layer 10 formed by the winding step in a die 40 whose inner wall surface is formed with a screw shape, pressurizing the die 40 in which the CFRP resin tape layer 10 is placed from one direction of the winding axis to the other, and heating the die 40 with a heater 82, thereby curing the resin containing the CFRP resin tape layer 10.
Public/Granted literature
- US20210025428A1 METHOD FOR MANUFACTURING FIBER-REINFORCED RESIN BOLT AND FIBER-REINFORCED RESIN BOLT Public/Granted day:2021-01-28
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