| 摘要 |
PCT No. PCT/AT80/00024 Sec. 371 Date Mar. 12, 1981 Sec. 102(e) Date Mar. 10, 1981 PCT Filed Jul. 10, 1980 PCT Pub. No. WO81/00240 PCT Pub. Date Feb. 5, 1981.A tracklaying vehicle has an engine, a drive shaft, and right and left drive wheels. It is steered by an arrangement having right and left planetary-gear transmissions each provided with a sun gear connected to the respective wheel, a ring gear coaxially surrounding the respective sun gear and connected directly to the drive shaft, at least one planet gear meshing with the respective sun and ring gears, and a planet carrier carrying the respective planet gear. The ring gears are joined together and connected to the drive shaft. Respective independently operable right and left hydrostatic drive motors are connected to the planet carriers of the respective transmissions and can be independently operated for adding of their rotation to or subtracting it from that of the respective output.
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