| 摘要 |
PURPOSE:To increase the amount of conveyance and to prevent both side end parts of a rounded conveyor belt from being worn, by arranging shape holding rollers such that both side ends thereof are made abut against each other or close to each other without both side end parts of the rounded conveyor belt being overlapped with each other. CONSTITUTION:An endless conveyor belt 1 is wound, in its front and rear sections where the belt is developed in a flat belt-like form, around a drive drum 2 and a driven drum 3. Further, several shape holding frames 5 are arranged along the advancing direction of the conveyor belt at predetermined intervals and supported to a frame 4 which surrounds the upper out-going trip belt 1a and lower return trip belt 1b of the belt conveyor 1. Each shape holding frame 5 is divided into two upper and lower chambers 5a, 5b each disposed therein a plurality of shape holding rollers 6, 7 for rounding the associated trip belt 1a, 1b. In this arrangement, the rollers 6 for the out-going trip belt 1a is made longer than that of the rollers 7 for the return trip belt 1b so that both side edges of the out-going trip belt 1a is made abut against each other or close to each other without being overlapped with each other. |
