Patent ID: 7392854

Claim:
A front rotary working machine for tilling the ground as the working machine travels along the ground, the working machine comprising: an engine; a transmission case mounted to a lower portion of the engine; rotary working portions disposed at a front portion of the transmission case and connected to be rotationally driven by the engine to till the ground as the working machine travels along the ground; a guard member extending forward from the transmission case for guarding an upper side of the rotary working portions, the guard member having a dirt guide plate that extends outwardly above the rotary working portions so that dirt thrown up by the rotary working portions strikes the dirt guide plate and breaks into smaller pieces that fall onto the ground; and a support device connected to the front portion of the transmission case for supporting a front wheel disposed forwardly of the rotary working portions, the support device having an upper portion connected to the guard member, a front wheel support arm member supporting the front wheel at a distal end portion thereof, and a side plate member rotatably supporting the front wheel support arm member and having an opening at a connected portion to the transmission case, the opening being located to allow the dirt to be gravitationally discharged therethrough without accumulating on the side plate member as the dirt falls onto the ground after striking the dirt guide plate.