A belt junction
belt conveyor in which a thick periphery (a convex part) of a belt is elastically held after the belt is rewound by an upper and lower inclined pulleys so that the belt can travel smoothly with suppressing bias due to belt rewinding. In this mechanism, a junction belt 7 is disposed in an inclined manner to have a predetermined degree, for example, 45° to a confluence of a carrier line 3, in which a pair of upper and lower inclined pulleys 11, 12 are arranged adjacent to the disposed part, and both end pulleys 8, 9 are mounted on a position where a double angle of the predetermined angle is maintained while keeping a distance from each other at the disposed side so that an advancing side belt and a returning side belt 7, respectively, are rewound by the upper and lower inclined pulleys 11, 12 to travel toward each of the end pulleys 8, 9. A roundish thick periphery 7a is provided at both edges in the cross direction of front surface or back surface of the belt 7. Spring type holder units 20a, 20b, and 20c for elastically holding the roundish thick periphery 7a are mounted on the right edge of an advancing side belt immediately before the upper inclined
pulley 11, on the left edge of a rewinding belt traveling between the upper inclined
pulley 11 and the first end
pulley 8, and on the right edge of a returning belt traveling to the second end pulley 9 side after rewinding at the lower inclined pulley 12, respectively, so that the meandering tendency of the belt occurring from being rewound by the upper and lower inclined pulleys 11, 12 is effectively prevented.