| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a trench digger for suitably forming a trench along a ridge of a field. <P>SOLUTION: A trench digger 1 includes a fixer frame 2 and a mover frame 3 movable with regard to the fixer frame 2. The trench digger 1 comprises a digging body digging the ground of a field by rotary action revolution to form a trench A and a trench shaping body 42 shaping the trench A at the back in a traveling direction of the trench digging body. The mover frame 3 has a first transmission case 31, a third transmission frame 32 projecting obliquely downward and outward from the first transmission case 31, and a second transmission case 33 provided at the lower end of the third transmission frame 32. The trench digging body has a rotary shaft projecting obliquely downward and inward from the second transmission case 33 and a plurality of trench digging claws rotating together with the rotary shaft. <P>COPYRIGHT: (C)2012,JPO&INPIT |
