Cutlery – Cutting tools – With support or attaching means
Patent
1997-05-02
1998-10-13
Watts, Douglas D.
Cutlery
Cutting tools
With support or attaching means
30383, 464172, B23D 5702
Patent
active
058194185
ABSTRACT:
A hand-guided working tool has a telescopic rod with a first and a second end and a drive motor connected to the first end. A working tool is connected to the second end of the telescopic rod. A telescopic drive shaft is enclosed in the telescopic rod. A first end of the telescopic drive shaft is connected to the drive motor and a second end of the telescopic drive shaft is connected to the working tool. The telescopic rod has an outer tube and an inner tube inserted with a leading end into the outer tube. The inner tube displaceable in the longitudinal direction of the telescopic rod. The telescopic drive shaft has a shaft tube and a shaft rod enclosed in the shaft tube. At least two bearings are arranged in the outer tube for rotatably supporting the telescopic drive shaft. They are spaced from one another in the longitudinal direction of the telescopic rod. The bearings include a cylindrical bearing sleeve having an outer mantle surface resting at the inner wall of the outer tube and also include an inner bearing positioned inside the cylindrical bearing sleeve. The bearing sleeve of a first bearing is mounted on the leading end of the inner tube. It forms a slide bearing for displacing the inner tube in the outer tube.
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Andreas Stihl
Watts Douglas D.
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