초록 ▼

A tennis racket comprising an annular head and a shaft forming the handle, the head being spanned by stringing, has a pair of profiled members one of which is open-ended and forms the external periphery of the head and the sides of the shaft, the other profiled member being closed into a loop and fo

A tennis racket comprising an annular head and a shaft forming the handle, the head being spanned by stringing, has a pair of profiled members one of which is open-ended and forms the external periphery of the head and the sides of the shaft, the other profiled member being closed into a loop and forming the internal periphery of the head. The mutually opposite faces of the racket are constituted by two substantially flat parallel elements which form, together with the profiled members, a tubular structure whose interior is filled with a synthetic resin cast in situ. The confronting surfaces of the two profiled members are formed with grooves in which reduced edge portions of the flat elements are received to define the space filled with the synthetic resin.

대표청구항 ▼

In a tennis racket comprising a first and a second profiled wall member, said first wall member being open-ended and defining opposite sides of a shaft and the outer periphery of an annular head integral with said shaft, said second wall member forming a closed loop which defines the inner periphery

In a tennis racket comprising a first and a second profiled wall member, said first wall member being open-ended and defining opposite sides of a shaft and the outer periphery of an annular head integral with said shaft, said second wall member forming a closed loop which defines the inner periphery of said head, and further comprising a pair of substantially flat parallel wall elements defining opposite planar faces of said shaft and said head, said wall members and said wall elements adjoining one another generally orthogonally and forming between them a closed space filled with a synthetic mass, the improvement wherein said wall members have reinforced edges provided with confronting grooves, said wall elements having peripheral ribs set back from said planar faces and received in said grooves.