PURPOSE: To easily obtain the subject noncorrosive rivet head at reduced cost by such a procedure that a material corresponding to a portion to be processed into the aimed rivet head is melted into a fibrous form, a core material is then inserted thereinto, and the resulting portion is hardened with a quick-setting resin along with forming so as to be larger in diameter than the FRP reinforcement.
CONSTITUTION: This rivet head is obtained by the following procedure: a material corresponding to a portion to be processed into the aimed rivet head is melted into a fibrous form while leaving some of the material portion 1a on the end of a FRP reinforcement 1 in the vicinity of the above end, and the fibrous form portion 2 is threaded with a rigid core material 3; subsequently the resulting fibrous portion 2 is hardened with a quick-setting resin along with forming the hardened portion 4 so as to be larger in diameter than the FRP reinforcement 1.
ITO YUKIO
TSUCHIDA SHINJI
