发明名称 Golfing device
摘要 A golfing device for audibly indicating improper head movement of a golfer during a golf swing. A support is clamped to a golfer's hat, a headband or the like and movably secures a sound-producing element adjacent the golfer's head. Any head movement beyond a predetermined, slight amount in generally any direction will cause the sound-producing device to audibly signal the golfer. In the preferred embodiment, a pivotally mounted bell is adjusted to accommodate the stance of the particular golfer using the device so that the bell striker is out of contact with the bell interior prior to a swing.
申请公布号 US4098509(A) 申请公布日期 1978.07.04
申请号 US19770804583 申请日期 1977.06.08
申请人 VAN KREVELEN, NELLIS D. 发明人 VAN KREVELEN, NELLIS D.
分类号 A63B69/36;(IPC1-7):A63B69/36;G08B3/00 主分类号 A63B69/36
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