Abstract: A screw hole seal structure seals a screw hole (13) in molding a fiber-reinforced resin member (1) in which an insert member (4) provided with the screw hole (13) is integrally incorporated. In the structure, a screw member (5) is tightened in the screw hole (13). In the structure, an elastic seal member (6) is compressed within the screw hole (13), in an axial direction of the screw member (5), and is therefore deformed radially outwards by compression force that is created by tightening of the screw member (5), and an air-tight state of the screw hole (13) is maintained by deformation of the elastic seal member (6).

Abstract: Provided is a method for manufacturing an FRP member with insert which enables to reduce a machining time to improve productivity. First, a threaded hole 11 is formed in an insert 3. An FRP member 2 where at least the threaded hole 11 of the insert 3 is covered with a coating 4 made of FRP is molded. A counter-bored hole 31 that penetrates the coating 4 of the FRP member 2 to communicate with the threaded hole 11 of the insert 3 is formed, to thereby obtain an FRP component 1 with insert. Accordingly, a machining step after molding the FRP member 2 in which dry machining is required includes only the boring step of forming the counter-bored hole 31 in the FRP member 2. Thus, the machining time can be reduced, and the productivity can be improved.

Abstract: Provided is a method for manufacturing an FRP member with insert which enables to reduce a machining time to improve productivity. First, a threaded hole 11 is formed in an insert 3. An FRP member 2 where at least the threaded hole 11 of the insert 3 is covered with a coating 4 made of FRP is molded. A counter-bored hole 31 that penetrates the coating 4 of the FRP member 2 to communicate with the threaded hole 11 of the insert 3 is formed, to thereby obtain an FRP component 1 with insert. Accordingly, a machining step after molding the FRP member 2 in which dry machining is required includes only the boring step of forming the counter-bored hole 31 in the FRP member 2. Thus, the machining time can be reduced, and the productivity can be improved.

Abstract: A screw hole seal structure seals a screw hole (13) in molding a fiber-reinforced resin member (1) in which an insert member (4) provided with the screw hole (13) is integrally incorporated. In the structure, a screw member (5) is tightened in the screw hole (13). In the structure, an elastic seal member (6) is compressed within the screw hole (13), in an axial direction of the screw member (5), and is therefore deformed radially outwards by compression force that is created by tightening of the screw member (5), and an air-tight state of the screw hole (13) is maintained by deformation of the elastic seal member (6).