发明名称 RACKET
摘要 <p>It is not always easy for a beginner to control the hitting of a ball with a tennis racket. Thus, there is only a small central area known as the sweep spot on which the ball has to impinge if it is to be hit consistently and accurately. The racket of the invention has a head with an elongated oval shape with the major axis of the oval being substantially aligned with the longitudinal axis of the handle and so a sweep spot is provided which is elongated in the direction of the axis of the handle. With such a racket, a beginner can usually hit a ball more accurately and effectively. Preferably, the racket frame has two sides which are substantially straight and parallel to one another and to the axis of the handle. A preferred manner of stringing such a racket is to use two sets of interwoven parallel strings, each set being oriented at an angle of about 45 DEG to the axis of the handle. Such an arrangement has advantages which include the fact that the majority of the strings are of approximately the same length and so can all be tensioned to about the same extent.</p>
申请公布号 JPS5599269(A) 申请公布日期 1980.07.29
申请号 JP19790099671 申请日期 1979.08.03
申请人 EPSTEIN DAVID 发明人 DEIBITSUDO EPUSUTEIN
分类号 A63B47/00;A63B49/00;A63B51/08 主分类号 A63B47/00
代理机构 代理人
主权项
地址