PURPOSE: To simplify the structure by moving a 2nd slider upward through a decelerating mechanism connected to an elevating mechanism so as to let an auxiliary rail reach the position for filling the omitted part of a rail when a 1st slider moves up through the elevating mechanism and the rail arrives at a prescribed position.
CONSTITUTION: This mechanism is provided with a 1st slider 43 equipped with a rail 40, 2nd slider 44 equipped with an auxiliary rail 41 and an elevating mechanism 42 for vertically moving the 1st slider 43 and when the 1st slider 43 moves up through the elevating mechanism 42 and the rail 40 arrives at the prescribed position, the 2nd slider 44 moves up through a decelerating mechanism 48 linked to the elevating mechanism 42 so that the auxiliary rail 41 can arrive at the position for filling the omitted part 6a of the rail. Thus, the rail mounting a carrier box 13 can be vertically moved to the prescribed position by the elevating mechanism and the auxiliary rail can be vertically moved to the prescribed position through the decelerating mechanism by the elevating mechanism so that the structure can be simplified.
KATAOKA KENJI
MATSUBARA AKIRA
FUJITSU KIDEN