BALL RACKET

摘要

There is disclosed a ball racket and, in particular, a tennis racket including a racket head and a handle portion. The frame members extend from the handle portion over the strung region of the head portion. The open area defined between the frame members running into the handle portion at acute angles as a whole constitutes the string plane and the longest central string extending in the longitudinal axis of the racket is tightened between the head and the point of origin adjacent the handle, of the acute angles (.alpha.) of the frame members running into the handle portion. The racket has a strung weight of less than 260 g and a free-free vibration frequency of more than 200 Hz. The ratio of the width of the string area to the length of the longest string of the string area is smaller than 0.6.