PURPOSE: To enable one-side wheel revolution to be relized with a simple structure by arranging a pair of rotational driving shafts for both the right and left wheels in parallel to the central axis of a driving gear connected to a motor and providing the follow-up gear on each of the rotational driving shafts in such a configuration as to be connected and disconnected to the driving gear.
CONSTITUTION: The rotational power of a rotary shaft 61 of a motor is transmitted to a chain shaft 66 through gear train 62, 64, 65, and 60 and further transmitted to an output shaft 15 for a work machine from a change gear 67 through a gear 68, driving shaft 71 for the work machine, and bevel gear train 72 and 73. Besides, when a main clutch 65 is engaged, the power is transmitted to the right and left running driving shafts 79 and 79' from a gear 69 through the running driving gear 65 and follow-up gears 80 and 80' and the right and left wheels are revolved simultaneously. For example, in this state, when the shifter 81 of a side clutch is actuated and the connection between the follow- up gear 80 as a side clutch gear and the driving gear 76 is disconnected, the revolution of the left wheel is stopped.
TAKAYAMA SATOSHI
SAKAI SEIJI
