| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To carry out stable steering even in any of forward and backward motion with a simple structure. <P>SOLUTION: The unmanned conveying vehicle 1 carries a conveyed article 3 on a traveller 2 and advances to a destination and moves backward on the unloaded traveller 2 from the destination in a reverse direction. The unmanned conveying vehicle 1 is provided with a fixed wheel 4 provided at an approximately central lower part of the traveller 2; and steerable driving wheels 5, 6 for forward and backward motion provided at a lower part of the traveller at the front and rear sides of the fixed wheel 4. Vehicle height of the fixed wheel 4 is formed higher than the front and rear driving wheels 5, 6 and the traveller 2 is formed inclinably on the front and rear sides in the traveling direction making the fixed wheel 4 as a center. The driving wheel 5 for advance is formed such that it is floated up against a traveling road surface 7 in the unloaded state. When the conveyed article 3 is loaded, a loading base 8 of the conveyed article 3 is formed on the traveller 2 such that the driving wheel 6 for backward motion is floated up against the traveling road surface 7. <P>COPYRIGHT: (C)2004,JPO&NCIPI</p> |
