| 摘要 |
PROBLEM TO BE SOLVED: To provide a lawn mower which is meant to cool hydraulic continuously variable speed-change portions, with a cooling fan driven by transmission power transmitted from an engine to a transmission device, which can adopt an oil cooler for improving the cooling performance, and which can avoid the problems of adherence and entanglement of mowed lawn. SOLUTION: This lawn mower has an engine 31 and a transmission device 40 having a pair of hydraulic continuously variable speed change portions for separately transmitting the power of the engine 31 to a pair of right and left travel wheels 2, 2 arranged in the longitudinal direction of the vehicle body. The lawn mower is further provided with a cooling fan 51 disposed integrally rotatably on a rotating shaft 38 for connecting the engine 31 to the transmission device 40; a suction port 64 which open upward to the vehicle body above the cooling fan 51 so that the cooling fan 51 sucks air; and a blowing port, used for the speed change portions and which open toward the transmitting device 40, and where the cooling fan 51 supplies cooling air to a pair of the hydraulic continuously variable speed change portions. An oil cooler 54 for the transmitting device 40 is arranged on the inside of a suction duct 53 for making the suction port 64 communicate with the cooling fan 51. COPYRIGHT: (C)2008,JPO&INPIT
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