Patent ID: 11873165
Assignee: DAIFUKU CO., LTD.
Field: Handling (Mechanical engineering)
Classification: CPC B | IPC B

Claim 12:
13. The article transport apparatus according to claim 11, further comprising:
a control apparatus that controls the transfer apparatus,
wherein the movement apparatus is provided with a support body that supports the transfer apparatus and a raising/lowering mechanism that moves the support body in the vertical direction,
wherein regarding spacing between the first protruding/retracting unit and the second protruding/retracting unit in the width direction, a transfer spacing corresponds to the spacing in the width direction of a target article that is to be transferred, and the spacing wider than the transfer spacing is defined as an evacuation spacing,
wherein the control apparatus, when transferring the target article from the transfer apparatus to a transfer destination location, executes a protrusion control that causes the first protruding/retracting unit and the second protruding/retracting unit to protrude in the state of the transfer spacing, a separation control that changes the spacing between the first protruding/retracting unit and the second protruding/retracting unit in the width direction from the transfer spacing to the evacuation spacing, and a withdrawal control that causes the first protruding/retracting unit and the second protruding/retracting unit to withdraw in the state of the evacuation spacing,
wherein, when the support body is at a position lower than a set height as the separation control, the control apparatus executes a first separation control that drives the second drive unit and does not drive the first drive unit to move the second protruding/retracting unit in the width direction, and
wherein, when the support body is at a position of at least the set height as the separation control, the control apparatus executes a second separation control that drives both the first drive unit and the second drive unit to move the first protruding/retracting unit and the second protruding/retracting unit in the width direction.