A transport cart includes a first cart, a second cart arranged in parallel with the first cart, and a frame. The first cart and the second cart are away from each other in a Y-direction. The frame includes a first standing section extending upward from the first cart, a second standing section extending upward from the second cart, a coupler placed above the first cart and the second cart and coupling the first standing section with the second standing section in the Y-direction, and a plurality of supports placed above the first cart and the second cart and configured to support a transport object from below. The plurality of supports is away from each other in at least either an X-direction or the Y-direction.

A transport cart includes a first cart, a second cart arranged in parallel with the first cart, and a frame. The first cart and the second cart are away from each other in a Y-direction. The frame includes a first standing section extending upward from the first cart, a second standing section extending upward from the second cart, a coupler placed above the first cart and the second cart and coupling the first standing section with the second standing section in the Y-direction, and a plurality of supports placed above the first cart and the second cart and configured to support a transport object from below. The plurality of supports is away from each other in at least either an X-direction or the Y-direction.

A transfer device comprising an automatic opening unit of a box cover, the transfer device includes: a barcode reader for reading a barcode attached to a box accommodating a bobbin and having a cover; a conveyor unit for placing the box; a centering unit; a fork unit for chucking the cover of the box; a traveling drive unit; and a control unit. The control unit controls Z-axis centering of the fork unit in conjunction with the barcode reader and the distance sensor, X-axis centering of the fork unit in conjunction with the box detection sensor, and Z-axis elevation and Y-axis movement of the fork unit, respectively, to automatically control opening of the cover.

A transfer device comprising an automatic opening unit of a box cover, the transfer device includes: a barcode reader for reading a barcode attached to a box accommodating a bobbin and having a cover; a conveyor unit for placing the box; a centering unit; a fork unit for chucking the cover of the box; a traveling drive unit; and a control unit. The control unit controls Z-axis centering of the fork unit in conjunction with the barcode reader and the distance sensor, X-axis centering of the fork unit in conjunction with the box detection sensor, and Z-axis elevation and Y-axis movement of the fork unit, respectively, to automatically control opening of the cover.