| 摘要 |
PURPOSE:To prevent abrasion of belt by providing a press roller for pushing one side end of belt inwardly when an endless belt will go round or will be developed horizontally in the go and return paths thereby preventing rubbing of the end sections at the opposite sides of belt. CONSTITUTION:A belt 1 developed flatly through an inverted roller 3 is bent into a trough when passing through a rounding frame 6 to be thrown in with carrying powder 19 through a hopper 8 to the central portion. Then by means of a press roller 17, the side end section only at the inside of the belt 1 is pressed forcefully from above. Thereafter, it is bent inner downward and runs into a front supporting frame 4 to be made into a pipe thus to slightly separate the ends 1', 1'' at the opposite ends of the belt 1 and to prevent sliding or rubbing. While when the material 19 carried by means of a go-path belt 1a is developed by the drive roller and runs, the side section 1'' at the inside of the go-path belt 1a is pushed inward by means of the press roller 17 to prevent sliding between the side sections 1', 1''. |
