Conveyance device utilizing coupled wagons

A conveyance device utilizing coupled wagons comprising:

• a conveying traveling body provided with a plurality of wagons disposed in series in a traveling direction and a wagon-to-wagon coupling means;
• a guide means guiding the conveying traveling body so as to travel along a travel path;
• the wagon-to-wagon coupling means having two links, and respective ends of each link being pivotally connected, by vertical support shafts, to one of the front and rear wagons, on laterally opposed sides thereof,
• when the front and rear two wagons coupled by the wagon-to-wagon coupling means adjoin each other in a straight ahead orientation, the two links are configured to be vertically overlapped in an orientation perpendicular to a wagon straight ahead direction and the vertical support shafts at both ends of the respective links are configured to be positioned concentrically;
• the guide means includes left and right two guide roller rows and a guide rail laid on the travel path of the conveying traveling body and guiding at least one of the left and right two guide roller rows, and
• when the respective wagons adjoin each other in the straight ahead orientation, the left and right two guide roller rows comprise intermediate rollers pivotally supported to one of the front and rear two wagons coupled by the two links so as to be rotatable about vertical axial centers concentric to the mutually concentric vertical support shafts at both ends of the two links, and end rollers pivotally supported rotatably about vertical axial centers to end portions on a side opposite to a side where the intermediate rollers are located of the wagons at front and rear both ends, so as to be positioned on a straight line passing the intermediate rollers and being parallel to the wagon straight ahead direction.