| 摘要 |
PURPOSE:To produce a tractor feeding unit inexpensively and in a small size, by a construction wherein a support shaft is passed through a pipe with a play, the pipe is made to penetrate through tractors so that the tractors can be slidden in the axial direction of the pipe and can be respectively fixed to the pipe. CONSTITUTION:In the tractor feeding unit B, a driving shaft 12 and the support shaft 13 are fitted in parallel with each other between support frames 10, 10 opposed to each other with a fixed spacing therebetween, and the tractors 15, 15 are slidably supported by the shafts 12, 13 so that they can be in the axial direction and can be fixed in the axial direction, as required. Rotation of the driving shaft 12 is transmitted, thereby feeding a paper by the tractors 15, 15. The support shaft 13 is passed through the pipe 14 with a play, is disposed between the support frames 15, 15 so that the tractors can be slidden in the axial direction and can be respectively fixed to the pipe 14. |
