FRP Racket frame

Claim 1

In a racket frame comprising a frame core including a handle portion, a throat portion and a head loop portion, and FRP sheets adhered to the ball-striking faces of the frame core, the improved racket frame wherein: each of said FRP sheets is made by slicing a curved laminated body formed into the same configuration as that of the ball-striking face of the frame core by molding a straight laminated body consisting of a plurality of FRP plate elements and protective plates arranged in side-by-side relation, each of the FRP plate elements is formed by long, continuous reinforcing rovings extending from one end of the plate element to the other end of the plate element and, while under uniform tension, being uniformly impregnated with a thermosetting resin, said protective plates are arranged at the innermost and outermost sides of the curved laminated body, and said FRP sheets are adhered to the ball-striking faces of the frame core at least in a region of said handle portion, said throat portion, and a part of said head loop portion.