Toyota Jidosha Kabushiki Kaisha

Shinichi Suefuji

Satoshi Yamaguchi

Keiichi Ishii

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

Screw hole seal structure, and production method for fiber-reinforced resin member

Provided is a method for manufacturing an FRP member with insert which enables to reduce a machining time to improve productivity. First, a threaded holeis formed in an insert. An FRP memberwhere at least the threaded holeof the insertis covered with a coatingmade of FRP is molded. A counter-bored holethat penetrates the coatingof the FRP memberto communicate with the threaded holeof the insertis formed, to thereby obtain an FRP componentwith insert. Accordingly, a machining step after molding the FRP memberin which dry machining is required includes only the boring step of forming the counter-bored holein the FRP member. Thus, the machining time can be reduced, and the productivity can be improved.

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Toyota, Japan

Shinichi Suefuji