| 摘要 |
<p>PURPOSE:To hold the posture of a car body even if the attracting force of a plurality of electromagnets is not uniformly worked, by positioning and arranging retaining sections on the car body attracted by the electromagnets on guide rails, inward running wheels on both the sides. CONSTITUTION:In order to retain a car body A at a specified position so that the car body A cannot be moved while loads are removed from or mounted on, electromagnets 11 attracting retaining sections 12 on the side of the car body toward the lower side are fitted on the bottom wall 3 of guide rails B. The retaining sections 12 are fitted to be positioned inside first left and right trank rollers 7. Accordingly, when both the left and right retaining sections 12 are attracted by both the left and right electromagnets 11, then one of both the first left and right trank rollers 7 serves to be a fulcrum and the car body A is never inclined even if the attracting force is not uniformly worked.</p> |
