Patent ID: 9695925
Date: 2017-07-04
CPC Classifications: B29C,B29L,F16C,F16H,Y10T

Claim:
1. A method of manufacturing a bar member including a pipe made of a carbon fiber reinforced resin, and a metal member that is fastened to an end portion of the pipe in an axial direction of the pipe, the method comprising: forming a core member including a mandrel made of metal that extends in the axial direction and a metal ring having an outer peripheral face subjected to face roughening, by externally fitting the metal ring onto the mandrel; winding glass fibers around the outer peripheral face of the metal ring; interposing the glass fibers between a prepreg sheet obtained by impregnating carbon fibers with a resin and the outer peripheral face of the metal ring by winding the prepreg sheet around an outer peripheral face of the core member, wherein the prepreg sheet is in close contact with an outer peripheral face of the mandrel and the glass fibers; forming the pipe where the end portion is externally fitted and fixed to the outer peripheral face of the metal ring by baking and curing the prepreg sheet wound around the outer peripheral face of the core member; pulling only the mandrel in the core member out of the pipe; and screwing together the metal member and an inner peripheral face of the metal ring.