发明名称 |
REPHASING CONTROLLING/CONTROLLED HYDRAULIC CYLINDERS IN FOLDING IMPLEMENT FRAME |
摘要 |
The invention is directed to a foldable agricultural implement frame having a first pair of controlling/controlled lifting hydraulic cylinders for lifting and lowering the right wing section and the center section together in a level condition, and a second pair of controlling/controlled lifting hydraulic cylinders for lifting and lowering the left wing section and the center section together in a level condition. In the first pair of controlling/controlled hydraulic cylinders one of the hydraulic cylinders lifts the right wing section and the other lifts the center section. In the second pair of controlling/controlled hydraulic cylinders one of the hydraulic cylinders lifts the left wing section and the other lifts the center section. A rephasing valve assembly is used to rephase the controlling/controlled hydraulic cylinder pairs when the implement frame is folded and only the center section needs to be lifted and lowered. In rephasing the controlling and controlled hydraulic cylinders, the rephasing valve assembly couples the controlling hydraulic cylinder of the center section to the controlled hydraulic cylinder of the center section.
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申请公布号 |
CA2145264(C) |
申请公布日期 |
1999.05.04 |
申请号 |
CA19952145264 |
申请日期 |
1995.03.22 |
申请人 |
DEERE & COMPANY |
发明人 |
LANDPHAIR, DONALD KEITH;RIEWERTS, PAUL REED |
分类号 |
A01B73/06;(IPC1-7):A01B73/02 |
主分类号 |
A01B73/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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