PROBLEM TO BE SOLVED: To improve a machine body balance in a riding lawn mower that includes particularly a hydraulic motor in each of all wheels.SOLUTION: A riding lawn mower receives the turf grass harvested in a mower (1) provided in the front lower part of a vehicle machine body into a collector (3) provided in the rear upper part of the vehicle machine body. The riding lawn mower is characterized by: providing a transmission case (14) and an engine (13) constituting a vehicle body frame in the longitudinal direction, respectively connecting a pair of left and right front frame units (15) to the left and right sides of the transmission case (14), respectively connecting a pair of left and right rear frame units (16) to the left right sides of the engine (13), respectively connecting the front part of the pair of left and right front frame units (15) by the front axles (17) providing front wheels (18) at both sides of left and right of the front axles (17) through a hydraulic motor (Mf) connecting a rear axle (20) in a swinging manner through a pivot shaft (19) in the rear of the rear frame unit (16) and providing rear wheels (21) through a hydraulic motor (Mr) at both sides of left and right of the rear axle (20).SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】特に全車輪それぞれに油圧モータを備える乗用芝刈機に関して機体バランスを良好とすること。【解決手段】車両機体の前方下部に設けたモーア(1)で刈り取られた芝草を、車両機体の後部上部に設けるコレクタ(3)に収容するものにおいて、車体フレームを構成する伝動ケース(14)とエンジン(13)を前後方向にそれぞれ設け、左右一対の前フレーム部(15)を伝動ケース(14)の左右面にそれぞれ連結し、左右一対の後フレーム部(16)をエンジン(13)の左右面にそれぞれ連結し、左右一対の前フレーム部(15)の前部を前車軸(17)で連結し、前車軸(17)の左右両側に油圧モータ(Mf)を介して前輪(18)を設け、後フレーム部(16)の後部には、ピボット軸(19)を介して後車軸(20)を揺動自在に連結し、後車軸(20)の左右両側に油圧モータ(Mr)を介して後輪(21)を設けた。【選択図】図1
