| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a shelf for storing a seedling box, surely maintaining the shape in a plan view by preventing deformation of vertical crosspieces forming an outer frame in a simple construction, smoothing the work for putting the seedling box in and out from a shelf portion, and simply and surely maintaining the shape in a plan view of the vertical crosspieces after assembling even when the vertical crosspieces, horizontal bars and vanes are unitized. <P>SOLUTION: This shelf includes: vertical crosspieces respectively erected in the vertical state at four corners of a square at least in a plan view; a horizontal crosspiece whose ends are fixed to the opposite surfaces of the vertical crosspieces in the front and rear direction being the direction of taking out and putting in the seedling box; connecting members respectively connecting the upper and lower end parts of the crosspieces to each other in the lateral width direction orthogonal to the front and rear direction among the vertical crosspieces; long vanes respectively fixed to the opposite surface sides in the lateral width direction of the vertical crosspiece or the horizontal crosspiece to form a shelf portion where both end parts of the bottom surface of the seedling box can be placed; and a reinforcing member for connecting the upper end parts of at least one pair of vertical crosspieces located on a substantially diagonal line among the crosspieces. <P>COPYRIGHT: (C)2013,JPO&INPIT |
