| 摘要 |
PURPOSE: A foldable harrow is provided to facilitate the folding operation thereof by constructing an auxiliary harrow to be folded according to the action of a cylinder, and to enable the easy adjustment of angle thereof. CONSTITUTION: In the foldable main harrow(11) having a foldable auxiliary harrow(12), the folding operation of the auxiliary harrow is performed about a reinforcing bar(15) formed at one side thereof by a cylinder(16) rotatably coupled to the main harrow, a frame(18) fixed to the main harrow is provided with a frame rotating device(19) having an elongate penetrating bore(21) installed in perpendicular to the frame, to which a main cylinder shaft is connected, and a connection rod rotatably coupled to the frame on one end is also fastened to a rotary(50) on the other end.
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