| 摘要 |
PURPOSE:To stop the roller at the position optimal for paper feed by constructing such that upon full rotation of paper pick roller to return to the original position, the contacting portion of a click lever will contact with the paper pick roller shaft and apply braking onto said shaft through frictional force. CONSTITUTION:A click lever 3 or a friction member 4 will apply friction through a paper 5 pushed up by a spring member 6 onto the paper pick roller shaft 2 secured to a roller 1 thus to stop the crescent or fan-shaped paper pick roller 1. Upon starting of rotation of said shaft 2 in the arrow direction, only the upper end paper 7 is fed to the paper feed roller 8. As the roller 1 moves from a recess to the circular section, the lever 3, the member and the paper 5 are pushed downward. Consequently, the load on the shaft 2 is reduced to fully rotate the roller 1 only through the feeding force of paper fed to the roller 8. Upon returning to the original recess, the lever 3 or the member 4 is pushed up to apply friction onto the shaft 2 thus to stop the roller 1. |
