| 摘要 |
<p>Road/rail vehicle A road/rail vehicle (1) has road wheels (7) and rail wheels (4- 5) which are movable between extended and retracted positions (as illustrated). The vehicle has selectively engageable first and second drive means for transmitting power from the engine to the road and rail wheels respectively. When the vehicle is in a rail going condition with its rail wheels in their extended positions the road wheels are maintained out of contact with the track rails by deflection restriction means operable on the suspension means of the road wheels (7). The vehicle also has a sub-frame at the rear to which the rear rail wheels (5) and the bodies of lifting jacks (9) of auxiliary apparatus are mounted. The sub-frame is vertically movable on slides (13). The auxiliary apparatus may include means for tamping, packing, levelling and/or lining.</p> |
