| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rotary tilling device that does not need a changing work of a plate when a leveling operation is performed. <P>SOLUTION: The rotary tilling device includes: a plate 18 which has flexibility, and in which an upper end is connected to the rear end of a cover 11 of a rotary tilling device 8 swingably up and down; a leveling plate 20 which is arranged in the backward of the plate 18 and is connected with the rear end of the cover 11 of the rotary tilling device 8 swingably up and down; connecting means 25 and 28 that connect the plate 18 with the rigid leveling plate 20 freely releasably; and holding means 14a and 24 which hold the leveling plate 20 in a posture being away from the plate 18 to the backward or the upper side in freely releasably. <P>COPYRIGHT: (C)2013,JPO&INPIT |
