| 摘要 |
PURPOSE:To prevent breakage of jointing section due to jointing operation or shock by a method wherein the small piece of prepreg, whose width is corresponding to the circumferential length of the jointing section and which is formed by arranging the bundles of large diametral reinforcing fibers in the circumderential direction of a mandrel with predetermined spaces under impregnating thermosetting resin thereinto, is laminated on and wound around the jointing section. CONSTITUTION:The prepreg 1 fro constituting the tubular fishing rod, which is formed by impregnating the thermosetting synthetic resin, such as epoxy resin, polyester resin or the like, into the reinforcing fibers consisting of the orientated sheet or fabric of carbon fibers, glass fibers or the like, is wound around the mandrel 2, thereafter, the small piece 5 of the prepreg, whose width is corresponding to the circumferential length of the jointing section and which is formed by impregnating the same or same series thermosetting synthetic resin as the resin impregnated into the prepreg 1 into the reinforcing fibers 4 in which the bundles 3 of large diametral fibers are arranged in the circumferential direction of the mandrel 2 with predetermined spaces, is laminated on and wound around the jointing section. The small piece 5 of prepreg, wound around the jointing section, is bound by a tape and the surface thereof is processed by thermosetting process as a normal rod, subsequently, the mandrel 2 is withdrawn, thereafter, a protrusion 7, formed by the large diametral fibers 3, is ground so as to meet with the fishing rod 8 to be jointed and engaged whereby the jointing section may be formed on the fishing rod 9. |
