| 摘要 |
<p>A wagon for bulk material handling, with telescopic sections travelling on rollers along guide tracks, has quick acting locking devices for the telescopic sections so that certain portions can be fixed when not all the telescopic sections need to be extended. Each section has a single locking lever in the bottom front part of each section, actuated by an external operative level, and each locking device includes a pawl mounted on a spindle, contacted by a spring loaded rocker arm, this panel having sloping tracking faces, one for each direction of travel of the telescopic section.</p> |
