Automated guided vehicles

Abstract

The objective of this invention is to provide an unmanned transport vehicle that can easily align the side shaft of the roll receiving device with the support shaft of the lifting device during roll transfer. The means to solve the problem is that the unmanned transport vehicle (1) of the present invention has a transport vehicle body (2), a support shaft (6) mounted on the transport vehicle body and supporting the roll material, a lifting mechanism (10) for raising and lowering the support shaft, and a push-out device (12) for pushing out the roll material; the support shaft has a lower shaft (20) mounted on the lifting mechanism and an upper shaft (22) movably provided on the lower shaft; the lower shaft has a support portion (free bearing (28)) movably supporting the upper shaft and a engaging portion (lower protrusion (20b) and upper protrusion (20c)) engaging with the upper shaft; the upper shaft has a supported portion (lower surface (22a)) movable relative to the lower shaft, an engaging portion (upper hole (22c)) engaging with the lower shaft, and a fitting member (24) engaging with the device side shaft (16) of the roll material receiving device (14).

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