| 摘要 |
<p>PURPOSE:To allow inspection while getting over an obstacle by providing a plurality of drive wheels being suspended on the opposite sides of an overhead line at the central part and the front and rear ends of a truck, and two balancers turning while rolling along with the body about the overhead line with respect to the drive section and the truck in front and rear thereof. CONSTITUTION:A cantilever axle 2 is provided perpendicularly to a truck at the front half section thereof with a sprocket 3 and a front drive wheel 4 being fixed, respectively, to the opposite ends thereof. Similarly, a rear drive wheel 5 and a sprocket 3 are fixed. A DC servo motor 6 with reduction gear is secured, as a drive source, to the coupling part of the front and rear sections of the truck and a central drive wheel 8 is fixed to the reduction gear 7 through the axle 2. A gear 9 is fixed to the central part of the axle 2 and meshed the adjacent gears 10, 11 which are coupled with the sprockets 3, 3 for front and rear wheels through chains 12. This structure allows continuous running while getting over an obstacle.</p> |
