| 摘要 |
PROBLEM TO BE SOLVED: To secure the straight traveling performance of a belt by correcting displacement and meandering of the belt with simple structure by tiltably supporting at least one roller freely within a surface parallel with a conveying surface in a device for carrying articles with rotation of an endless belt wound between rollers. SOLUTION: This belt conveyor device such as a label attaching device provided with two pairs of labelers in upper and lower parts is provided with a belt conveyor B1 having a belt 10b1 wound between a driving roller 13 and a roller 16. When difference in the tensile force is generated between a left and a right edges of the belt 10b1 by friction and change with the lapse of time, a displacement of the belt 10b1 occurs in the cross direction. Namely, at a roller 16 side, the belt 10b1 is displaced to a stronger tensile force side. Since the tensile force is strong at edges, the roller 16 is turned around a core adjusting bearing 30, and a displaced side of the belt 10b1 is tilted to the driving roller 13 direction, and a roller axis L is changed in a range of gradient movable angleα, and a displacement of the belt 10b1 is thereby automatically corrected.
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