发明名称 Golf practice device
摘要 An improved portable golf practice device includes a base with a pivotably attached arm. A freely slidable distance indicator and a spring biased slidable yoke are mounted on the arm. The yoke is mounted for pushing the indicator away from the point at which the arm pivots on the base. A cord and ball are attached to the yoke. When the ball is struck, it pulls the yoke against the force of the spring which biases the yoke and causes the distance indicator to slide along the arm away from the pivot. A distance scale formed in the base indicates the distance the distance indicator travelled and thus indicates the distance the ball would travel if unattached. The device also includes an angle indicator member on the arm which cooperates with an angle scale on the base to indicate the direction of flight of the golf ball.
申请公布号 US4118032(A) 申请公布日期 1978.10.03
申请号 US19770797522 申请日期 1977.05.16
申请人 K-TEL INTERNATIONAL, INC. 发明人 KOBLICK, JEFFREY
分类号 A63B69/00;A63B71/02;(IPC1-7):A63B69/36 主分类号 A63B69/00
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