| 摘要 |
<p>A trailer (10) for the recovery of vehicles has a drawbar (12) having first and second sections (14,16) hinged together at adjacent ends, about a horizontal transverse axis; the first section (14) of the drawbar (12) has a ball cup (24) by which it may be secured to a towing hitch (100) of a recovery vehicle, the second section (16) of the drawbar (12) has a pair of arms (30) pivotally mounted adjacent the end thereof remote from the end hinged to the first section (14), the arms (30) are pivotal between a stowed position in which they are disposed parallel to the drawbar (12) and a deployed position in which they are disposed coaxially of one another on an axis transverse to the longitudinal axis of the drawbar (12); a pair of wheel pans (50) are mounted and able to slide, one on each of the arms (30), the wheel pans (50) are interconnected to the second section (16) of the drawbar (12) by a linkage mechanism (60,62), so that when the arms (30) are in the stowed position, the wheel pans (50) are slid inwardly towards the pivot connections of the arms (30) to the drawbar (12) and, when the arms (30) are in the deployed position, the wheel pans (50) being slid outwardly towards the free ends of the arms (30); a self steering wheel (70) being mounted on each of the arms (30), the self steering wheels (70) being disposed outboard of the wheel pans (50) when the arms (30) are in the deployed position.</p> |
