| 摘要 |
<p>PURPOSE:To surely and accurately perform an operation changeover between horizontally and vertically moving operations of a tray in order to establish a tray system capable of high reliable and stable tray movement. CONSTITUTION:The subject device is provided with an operation changeover gear 14 for performing an operation changeover by meshing with both an operation changeover rack 10c corresponding to a horizontal guide groove 10a of the tray 10 and an operation changeover rack 16c of a vertical guide slider 16. This gear 14 is positionally regulated by a position regulating part 16d provided to the vertical guide slider 16 at the time of vertical movement, so that the gear 14 is positionally regulated by the vertical guide slider 16 in all positions including horizontal movement and vertical movement of the tray 10. By this method, the accurate operation control is feasible by using only a spring member 15 for imparting its spring force to the operation changeover gear 14 in the direction of permitting the changeover operation.</p> |
