| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To excellently and surely perform separation work of a seedling raising box, by avoiding reaction of the separation work acting in the direction for moving an upper claw to the nonaction side by an interval expanding mechanism for separating the seedling raising box at the lowest stage. <P>SOLUTION: The upper claw 51 includes the interval expanding mechanism 7 constituted so that an attitude can be switched to a separation attitude of expanding an interval between an upper stage side seedling raising box 20 and a lower stage side seedling raising box 20 and a separation releasing attitude of releasing the separation attitude. The interval expanding mechanism 7 includes a separation operation body 70 capable of switching an attitude to a separation attitude of pushing down the lower stage side seedling raising box 20 and a separation releasing attitude of releasing the pushing-down by rotation around the horizontal directional axis z1 in the distance direction to a seedling raising box group 2A in an action position for intruding the upper claw 51 into a vertically moving locus of the seedling raising box group 2A. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
