| 摘要 |
<p>A drive assembly (10) for a vehicle has a chain (11) passing around a pair of sprockets (12, 13), the lower rim of the chain (11) being supported by a chain guide (14). Bracket assemblies (20) are provided at spaced intervals along the chain (11) and have a ground-engaging wheel (21) rotatably journalled on an axle (22) between a pair of bracket plates (23) mounted on the chain (11) by spaced pins (25). A second pair of spaced pins (26) connect the chain links preceding and succeeding the chain links connected by pins (25) and are received in respective pairs of curved slots (27) in the bracket plates (23).</p> |
