ARTICULATED ARM TYPE CONVEYING METHOD

PURPOSE: To work well with a variety of carrying forms easily with change of a small number of component parts by furnishing a hitch pin emerging/ retracting device which performs engagement and disengagement with/from a transporting pallet where a hitching member is installed at the end of an arm, hitching the pallet with the hitching member, and transporting on a guide rail. CONSTITUTION: When a pallet in one pallet standby position is to be transported to the next standby position, a hitch pin behind a hitching member 1 fixed to a pivot B is engaged by a front hitch pin hole 2 in the pallet through the action of a hitch pin emerging/retracting device, and the pivot B is slided on a guide rail 5 between processing jigs through the action of an actuator M to travel till the transport stroke E. Then the pallet is disengaged from the hitching member 1, and the actuator M is rotated reversely, and the pivot B is retreated by numerical control till the position where the rear hitch pin hole 3 in the pallet can engage the front hitch pin of the hitching member 1. If then the hitching member 1 is engaged by the rear hitch pin hole 3 and the pivot B is moved till the transport stroke E, the pallet is carried to the next standby position.