PROBLEM TO BE SOLVED: To provide a tiller that enables ridging and tilling work and tends to cause less dashing troubles during tillage.SOLUTION: The tiller has a following constitution: driving shaft 2 is constituted of an inner driving shaft 2a, near a transmission case 6 and an outer driving shaft 2b distant from the transmission case 6 the inner driving shaft 2a and the outer driving shaft 2b are placed on the same axis and normally and reversely rotate in opposite directions the tillage tine 3c of the outer driving shaft 2b is attached to direct the tip end inward in the right and left directions the tillage tines 3a, 3b of the inner driving shaft 2a are attached to direct the tip ends outward in the right and left directions and the outer driving shaft 2b is made to be detachable and turns upward at the outer right and left sides of a tilling cover 4.COPYRIGHT: (C)2009,JPO&INPIT【課題】本発明は、畝立て及び耕耘作業を行なえ、かつ、耕耘中にダッシングし難い耕耘機にすることを課題とする。【解決手段】駆動軸(2)は伝動ケース(6)に近い側の内側駆動軸(2a)と伝動ケース(6)に遠い側の外側駆動軸(2b)とから構成し、内側駆動軸(2a)と外側駆動軸(2b)は同一軸心上にあってかつそれぞれ反対方向に正逆転する構成とし、外側駆動軸(2b)の耕耘爪(3c)はその先端を左右内側に向くよう取り付け、内側駆動軸(2a)の耕耘爪(3a,3b)はその先端を左右外側に向くよう取り付け、外側駆動軸(2b)は脱着可能に構成すると共に、耕耘カバー(4)の左右外側を上方に向かって回動する構成とした。【選択図】 図2
