Article storage facility

摘要

A vertically movable work platform is suspended and supported by a plurality of suspension wires fed out from one or more of winding rotating bodies which is rotated such that the vertically movable work platform is vertically moved by the rotation of the one or more of winding rotating bodies. A support for receiving and supporting the lowering vertically movable work platform at a work height, and a stopper for preventing the rotation of the winding rotating body in a direction which tends to lower the vertically movable work platform when the vertically movable work platform reaches the work height are provided.

主权项

1. An article storage facility comprising:
an article storage rack having a plurality of storage units for storing articles, the storage units being arranged in a rack vertical direction and in a rack lateral width direction; a vertically movable work platform configured to move vertically between a retreat height and a work height in the rack vertical direction in a travel space located forwardly of the article storage rack; one or more winding rotating bodies manually operated directly or indirectly, wherein the vertically movable work platform is configured to be suspended and supported by a plurality of suspension wires fed out from the one or more winding rotating bodies and to be moved vertically by a rotation of the one or more winding rotating bodies; a support configured to receive and support, at the work height, the vertically movable work platform that is being lowered; and stopper means configured to prevent a rotation of the one or more winding rotating bodies in a direction that tends to lower the vertically movable work platform when the vertically movable work platform reaches the work height, wherein the stopper means is configured such that when a fed-out amount of the suspension wires from the one or more winding rotating bodies is less than a predetermined amount, the stopper means allows the one or more winding rotating bodies to rotate both in a direction to spool the suspension wires and thereby raise the vertically movable work platform and in a direction to feed out the suspension wires and thereby lower the vertically movable work platform toward the support, and such that when the fed-out amount of the suspension wires from the one or more winding rotating bodies is equal to the predetermined amount, the stopper means allows the rotation of the one or more winding rotating bodies in the direction to spool the suspension wires and restricts the rotation of the one or more winding rotating bodies in the direction to feed out the suspension wires, and wherein the predetermined amount is a fed-out amount of the suspension wires when the vertically movable work platform reaches the work height and is received and supported on the support.