| 摘要 |
<p>A rail wagon frame (20) having a longitudinal axis (203). Leading outboard (204) and inboard (205) pins are provided at a leading end (201) of the frame (20) and trailing outboard (206) and inboard (207) pins are provided at a trailing end (202) of the frame (20). The pins (204, 205, 206 and 207) are all aligned on the longitudinal axis (203). A leading bogey (30) supports the leading end (201) and a trailing bogey (40) supports the trailing end (202) of the frame (20). The leading bogey (30) comprises an outboard and an inboard sub-bogeys (301 and 302) hingedly connected about a first pivot (306) located substantially midway between the outboard (303) and inboard (304) axle groups. The leading bogey (30) is pivotally connected to the leading end (201) of the wagon frame (20), via the leading inboard pin (205), at a third pivot (307) located inboard, with respect to the wagon frame (20), of the first pivot (306). The outboard (301) and inboard (302) sub-bogeys of the leading bogey (30) are pivotally connected to the wagon frame (20), as well as to each other, via the leading outboard pin (204), which defines the first pivot (306).</p> |
