| 摘要 |
<p>[PROBLEMS] To enhance the degree of freedom in arrangement of power supply in both the laying direction of power supply rail and the direction intersecting the laying direction of power supply rail perpendicularly. [MEANS FOR SOLVING PROBLEMS] A power supply rail (21) being laid along the longitudinal direction of a shelf board (6) for mounting an article (S) at the forward end portion of the shelf board (6) comprises two installation grooves (34, 35) formed continuously along the longitudinal direction of the shelf board (6) both at the upper and lower portions thereof and capable of fixing attachments (100, 200), and electrode portions (37P, 37M) provided continuously along the longitudinal direction of the shelf board (6) in these two installation grooves (34, 35) and capable of supplying power.</p> |
