Patent ID: 8882950
Filing Date: 2014-11-11
Classification: B29C,B29K

Abstract:
1. A prepreg winding method comprising: a step of preparing a plate, a mandrel which is movable toward and away from said plate, and a press roll which is movable toward and away from said mandrel and has an axis parallel to said mandrel; a step of mounting a laminated prepreg on said plate, said laminated prepreg being formed by layering a plurality of prepregs with a separating sheet interposed between adjacent prepregs, each prepreg formed by impregnating reinforced fibers with a thermosetting resin sheet; a step of winding a leading end of said laminated prepreg, mounted on said plate, around said mandrel, and making a pressing force act on said plate and said mandrel therebetween with said laminated prepreg sandwiched between said plate and said mandrel and making a pressing force act on said mandrel and said press roll therebetween with said laminated prepreg sandwiched between said mandrel and said press roll; and a step of winding said laminated prepreg around said mandrel by rotating said mandrel and said press roll, while removing each said separating sheet during winding of said layered prepregs around said mandrel, by supplying a relative moving force between said plate and said mandrel with said mandrel and said press roll pressed against each other, said relative moving force acting in a direction orthogonal to said axis of said mandrel with respect to a plan view.