发明名称 Method and apparatus for raising or lowering the raking wheels of a foldable hay rake
摘要 A device for raising or lowering the individual raking wheels on a foldable hay rake has a rake arm with a plurality of raking wheels, the device comprises a lift tube that is slidably mounted to the rake arm and is hingedly attached to the plurality of raking wheels. The device further comprises a hydraulic cylinder with a fixed end attached to the rake arm and an extendable cylinder rod attached to the forward end of the lift tube. As the cylinder rod operates, it pulls the lift tube from the forward end, thereby raising the raking wheels.
申请公布号 US6948301(B2) 申请公布日期 2005.09.27
申请号 US20030742078 申请日期 2003.12.19
申请人 ROWSE HYDRAULIC RAKES, CO, INC. 发明人 ROWSE DAN D.;ROWSE RODNEY D.
分类号 A01D78/00;(IPC1-7):A01D78/10 主分类号 A01D78/00
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