| 摘要 |
<p>Device for fastening a drive unit (4) to a body (1) of lawn-mower, said drive unit comprising a pulley (5) which receives a transmission belt (3) of an engine (2) and a transmission shaft (6) in order to actuate a pair of wheels (9). The device comprises a tie rod (11) hinged to the drive unit at one end, and elastic stress means (12, 13, 14, 15) coupled to a second end of said tie rod for tensioning said belt, said elastic means being arranged in such a way as to develop an elastic force (F1) lying on a same plane in which a tension developed by the belt (3) also lies, so that said elastic force has the same direction, the same intensity but opposite sense with respect to the tension exerted by the belt on the drive unit. <IMAGE></p> |
