| 摘要 |
PURPOSE:To attain compactness in the longitudinal direction of a transmission case by vertically arranging a drive pinion shaft of a differential gear, and also operating this drive pinion shaft associated with an output shaft of a transmission through a bevel gear. CONSTITUTION:In a rear wheel-driven midmount type riding lawn mower, power of an engine in a running machine body front part is transmitted to a static hydraulically-operated continuously variable transmission 5 through a transmitting shaft 4, and from this continuously variable transmission 5, a rear wheel is driven through a differential gear 7 in a transmission case 6. Here through a belt 8b wrapped around a pulley 8a provided in an input shaft 5a of the continuously variable transmission 5, power is transmitted to a pulley 8c on a mid PTO shaft 9a, to drive a mower. In this constitution, from an output shaft 5b of the continuously variable transmission 5, power is transmitted through bevel gears 12a, 12b to a drive pinion shaft 7a vertically arranged to provide a rear wheel braking brake drum 13 in the end part, so as to drive a ring gear 7b of the differential gear 7.
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