| 摘要 |
The invention provides a curved belt support apparatus ( 300 ) that prevents a curved belt ( 200 ) from moving inward by supporting a thick part ( 220 ) of the curved belt that thickens in both vertical directions at the outer edge of the belt. An upper roller ( 370 ) is brought in contact with the upper inside surface ( 221 ) of the thick part ( 220 ), a lower guide roller ( 380 ) is brought in contact with the lower guide roller ( 380 ) is brought in contact with the lower inside surface ( 222 ) of the thick part ( 200 ), and the upper and lower guide rollers are elastically supported such that they can move up and down. When operated, the upper guide roller ( 370 ) and the lower guide roller ( 380 ) are moved diagonally upward and downward, respectively, in the direction of the radial inner edge of the curved belt so that the thick part ( 220 ) of the belt is released from the upper and lower guide rollers. |
