发明名称 |
TREE SHEAR ACTUATOR RESTRAINT SYSTEM |
摘要 |
<p>TREE SHEAR ACTUATOR RESTRAINT SYSTEM A tree shear head includes a frame which supports a pair of parallel crank shafts which are respectively linked to a pair of shear blades for moving the latter together into the trunk of a tree to be sheared upon rotation of the crank shafts. The crank shafts are rotated by means of an actuator including a cylinder in which a pair of piston and rod units are mounted with the rods projecting oppositely and being respectively connected to the pair of crankshafts. To prevent the cylinder of the actuator from shifting axially relative to the rods and from rotating on the rods, cables are connected between the cylinder and the frame.</p> |
申请公布号 |
CA1069804(A) |
申请公布日期 |
1980.01.15 |
申请号 |
CA19780297401 |
申请日期 |
1978.02.21 |
申请人 |
DEERE & COMPANY |
发明人 |
THOMPSON, WARREN L.;KURT, LYNN E. |
分类号 |
A01G23/089;(IPC1-7):01G23/08 |
主分类号 |
A01G23/089 |
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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