抄録
A trial manufacture of oscillating subsoiler which is attachable to ordinary small tractor was made for the study on the effects of oscillation to the subsoiler.
The oscillating mechanism of this subsoiler is driven by crank and pitman arm which is adjustable its amplitude and frequency to following extend longitudinally;
frequency of the chisel 10-35cps
amplitude at the chisel point 0-45mm
In the field experiment, following conclusion was obtained that the oscillation of chisel reduces slip of traction tires and improves pan breaks ability of subsoiler.
Furthermore, this trial type subsoiler had well proved its durability for any kind of special tests at this experiment.
