Patent ID: 9669996
Date: 2017-06-06
CPC Classifications: B65G,B66F,H01L

Claim:
1. An article storage facility comprising: an article storage rack including a plurality of storage sections arranged in a vertical direction and a lateral direction, each of the storage sections including a storage support body that supports an article from below; a movement support body that supports the article; a movement mechanism that moves the movement support body in the vertical direction and the lateral direction in a movement space provided along a front of the article storage rack, and moves the movement support body along a front-rear direction that is a direction of arrangement of the movement space and the article storage rack; and a control portion that controls the movement mechanism; wherein: the control portion is configured to cause the movement mechanism to execute a movement operation of moving the movement support body to a target stop position that is set so as to correspond to each of the plurality of storage sections and stopping the movement support body at the target stop position, and a transfer operation of lowering the movement support body at the target stop position and delivering the article to the storage support body, the movement support body is configured such that an imaging device can be removably attached thereto, the imaging device is configured to, in a state in which the movement support body is at the target stop position, be controlled by the control portion so as to image from above an imaging target location that is set in the storage support body of the storage section corresponding to said target stop position, and the control portion is configured to execute: a preliminary movement process of causing the movement mechanism to execute a preliminary movement operation of moving the movement support body with the imaging device attached thereto to a preliminary target stop position that is preset as the target stop position and stopping the movement support body at the preliminary target stop position; an imaging process of causing the imaging device to image the imaging target location in a state in which the movement support body is stopped at the preliminary target stop position; an offset amount calculation process of calculating, based on a captured image obtained by the imaging process, a positional offset amount of the movement support body in the front-rear direction and the lateral direction from a proper position of the movement support body that is a position at which the article supported by the movement support body can be delivered to a proper storage position of the storage support body by the transfer operation; and a correction process of correcting the preliminary target stop position based on the positional offset amount calculated by the offset amount calculation process and setting the target stop position.