发明名称 Fungo batting assistance machine
摘要 A fungo batting assisting machine having a frame; a cradle mounted upon the frame, the cradle having a ball percussion port; a hammer; a first pivot joint interconnecting the hammer and the frame so that the hammer may move between a spring energy position underlying the ball percussion port and a ball driving position overlying the spring energy position; a ball driving spring normally positioning the hammer between its spring energy and ball driving positions; a trip arm extending from the hammer; a pawl arm; a second pivot joint interconnecting the pawl arm and the frame so that the a pawl arm may move between a trip arm carrying position and a trip arm releasing position; and an actuation lever extending from the pawl arm.
申请公布号 US2007232419(A1) 申请公布日期 2007.10.04
申请号 US20060397129 申请日期 2006.04.04
申请人 KOSJER MARCUS 发明人 KOSJER MARCUS
分类号 A63B69/00;F41B3/04 主分类号 A63B69/00
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