CUTTING DEVICE

The tree shear head includes a frame that 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. The crank shafts are rotated by means of an actuator including a cylinder in which a pair of piston and...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	LINN EDVARD KERT,US, UORREN LINN TOMPSON,US, ENDRYU POL REDMAN,US, GARRI LI SHALTE,US
Format:	Patent
Sprache:	eng
Schlagworte:	AGRICULTURE ANIMAL HUSBANDRY CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPSOR SEAWEED FISHING FORESTRY HORTICULTURE HUMAN NECESSITIES HUNTING TRAPPING WATERING
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Beschreibung
Zusammenfassung:	The tree shear head includes a frame that 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. The crank shafts are rotated by means of an actuator including a cylinder in which a pair of piston and rod units are mounted. The rods project oppositely and are respectively connected to the pair of crank shafts. To prevent the cylinder of the actuator from shifting a axially relative to the rods and from rotating on the rods, cables are connected between the cylinder and the frame.