초록 ▼

A walk-behind garden tiller having a pair of ground wheels and a row of soil penetrating and pulverizing tines both powered from a single engine through a power transmission. The transmission includes a tilling drive mode in which the tines and drive wheels are simultaneously driven, a non-tilling r

A walk-behind garden tiller having a pair of ground wheels and a row of soil penetrating and pulverizing tines both powered from a single engine through a power transmission. The transmission includes a tilling drive mode in which the tines and drive wheels are simultaneously driven, a non-tilling reverse ground wheel drive mode, a non-tilling machine transport drive mode, and a neutral drive mode, all controlled by a single, simple push-pull lever which is adapted to automatically disengage power transmission to the tines when the tiller is operated in either the reverse, transport, or neutral drive modes.

대표청구항 ▼

In combination with a soil tilling machine comprising, a frame; a pair of ground wheels supporting the frame for movement on the ground; a plurality of tines supported by the frame and engageable with the ground for tilling; an engine mounted on the frame for powering said tines and ground wheels; m

In combination with a soil tilling machine comprising, a frame; a pair of ground wheels supporting the frame for movement on the ground; a plurality of tines supported by the frame and engageable with the ground for tilling; an engine mounted on the frame for powering said tines and ground wheels; means extending rearwardly from said frame such that movement of the machine may be guided by an operator walking with and behind the machine; a transmission coupled between said engine and said tines and ground wheels; said transmission including an input shaft; and means operatively connecting said input shaft to said engine, the improvement which comprises: (a) said transmission having three drive trains; (b) the first drive train being operatively coupled to said tines and selectively coupleable to said input shaft whereby rotation of the input shaft causes rotation of the tines when said first drive train is operatively coupled to said input shaft; (c) the second drive train being operatively coupled with said ground wheels and selectively coupleable to said input shaft whereby rotation of the input shaft causes rotation of the ground wheels in a direction for forward machine movement when said second drive train is operatively coupled with said input shaft; (d) the third drive train being operatively coupled to said ground wheels and selectively coupleable to said input shaft whereby rotation of the input shaft causes rotation of the ground wheels in a direction for reverse machine movement when said third drive train is operatively coupled to said input shaft; and (e) control means for connecting selected of said drive trains to said input shaft for the desired machine operation, said control means being actuated from a single lever for selectively setting said transmission to one of three drive modes for the desired operation of said machine; (f) the first drive mode being a tilling drive mode whereby said ground wheels are driven in a direction for forward machine movement and said tines are rotatably driven; (g) the second drive mode being a reverse drive mode whereby said ground wheels are driven in a direction for reverse machine movement and said tines are idle; (h) the third drive mode being a transport drive mode whereby said ground wheels are driven in a direction for forward machine movement and said tines are idle.