Patent ID: 7080836
Filing Date: 2006-07-25
Classification: B65H

Abstract:
1. A sheet transport apparatus for transporting a sheet, comprising: a transport path for transporting the sheet, a drive roller unit disposed in the transport path and having a drive shaft and at least two drive rollers arranged on the drive shaft in a first direction perpendicular to a second direction that the sheet is transported, drive means connected to the drive shaft for driving the drive roller unit, a follower roller unit disposed in the first direction in the transport path and having a follower shaft, bearings for supporting the follower shaft to be movable toward the drive shaft, and at least two follower rollers contacting the at least two drive rollers, and urging means attached to the follower shaft for pressing the at least two follower rollers to the at least two drive rollers in a direction with a predetermined angle with respect to the drive shaft, said urging means including an urging spring acting on the follower shaft in a direction inclined by the predetermined angle relative to the drive shaft so that the at least two follower rollers are pressed onto the at least two drive rollers with a force directed to the at least two drive rollers along the bearings and another force perpendicular to said force.