| 摘要 |
System for accurately positioning an article transfer assembly in a preselected one of several positions in at least one of a horizontal and a vertical path of movement by remotely controlling the assembly by way of a digital position reader unit. A belt control arrangement extends parallel to the paths of movement of the assembly and is provided with a series of mutually separate and locally disposed position-defining control elements, a corresponding series of mutually separate and locally disposed position-indicating control elements as well as a corresponding series of mutually separate and locally disposed locking elements. A carrier arrangement is combined with the assembly and displaceably engages the control arrangement by way of rollers. The carrier arrangement is provided with search devices adapted to cooperate with the position-defining control elements and with the position-indicating control elements and with a locking device adapted to cooperate with the locking elements. Stopping and starting of the assembly is controlled remotely by way of the digital position reader unit on cooperatingly controlling the control elements and the search devices relative to each other and the locking device relative to the locking elements.
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