Self-propelled carriage
An article transfer method using a self-propelled carriage capable of supporting an article and travelling along a fixed path is provided in which an article supporting body forming a final operating section is turned without performing lateral movement and with making little protrusion toward the article handling section, by combining longitudinal movement of a movable body with respect to a vehicle body and turning movement of a turnable body with respect to the movable body. As a result, means for performing lateral movement of the article supporting body can be omitted, and hence the overall device can be constituted in a simple and inexpensive manner.
1. A self-propelled carriage eomprising a carriage body and a movable body capable of moving in a longitudinal direction with respect to the carriage body, and moving means, attached to said carriage body said movable body comprising a turnable body turnable about a vertical axis, and turning means having an article supporting body mounted over said turnable body, wherein:
the movable body performs a longitudinal movement whilst the turnable body performs a turning movement in a synchronised manner; and
a cover member for covering the article supporting body located on top of the carriage body such that a portion of said carriage body is turnable in unison with the turnable body, and the cover member comprises a fixed cover section located on the front end of the carriage body, a sliding cover section capable of sliding with respect to the fixed cover section and a movable cover section capable of turning in unison with the turnable body.
2. The self-propelled carriage according to claim 1 , wherein the article supporting body is a fork device extendable and retractable in forward and backward directions.