| 摘要 |
<p>A drive transmission group (30) to a steer wheel (23) of a vehicle (10) which comprises: at least a drive chain ring (31) associable to actuating means (32) in rotation able to impart a rotary motion to the chain ring (31), at least a driven chain ring (33) solidly associated in rotation coaxially to the steer wheel (23), at least a first intermediate chain ring (34) and a second intermediate chain ring (36) connected respectively to the drive chain ring (31) and to the driven chain ring (33) by means of respective flexible organs (35, 37), a universal joint (50) comprising a joint spider (51) on a first arm (511) of which the first intermediate chain ring (34) is associated, rotatably with respect to an axis of the first arm (511), and on a second arm (512) of which the second intermediate chain ring (36) is associated, rotatably with respect to an axis of the second arm (512), characterised in that the first intermediate chain ring (34) is concentric to the spider (51).</p> |
