| 摘要 |
Device for driving a tool 4 which is positioned on a pivotable component 2, which device comprises an internal combustion engine 5 or the like which is arranged in a stationary position, in such a manner that the extension of the engine drive shaft 6 intersects the pivot axis 22 of the pivotable component 2 and is at right angles thereto, the engine drive shaft, by means of a bevel gear or crown gear transmission 15, 16, 17, driving a transmission shaft 26, which is rotatably supported by the pivotable component 2 in such a manner that the extension of the axis 36 of the transmission shaft likewise intersects the pivot axis 22 of the pivotable component and is at right angles thereto. The gear 16 which is positioned between the gear 15 which is driven directly by the engine drive shaft 6 and the gear on the transmission shaft 26 is arranged on a gear shaft 18 whose axis 21 coincides with the pivot axis 22 of the pivotable component 2. <IMAGE>
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