发明名称 Wheel rake spring assembly
摘要 A lifting force is applied to a wheel rake arm through a spring assembly wherein a coil spring is placed in compression rather than tension. In the preferred embodiment a rod is connected at one end to a rake wheel arm and the free end of the rod extends through a sleeve and then a coil spring which engages a stop at the opposite end of the rod. The sleeve is connected by linkages to an actuating rod.
申请公布号 US6220008(B1) 申请公布日期 2001.04.24
申请号 US19990285543 申请日期 1999.04.02
申请人 ROWSE DAN D.;ROWSE RON A. 发明人 ROWSE DAN D.;ROWSE RON A.
分类号 A01D78/08;(IPC1-7):A01D78/08;A01D80/00 主分类号 A01D78/08
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