Patent ID: 8322712
Filing Date: 2012-12-04
Classification: B65H,G03G

Abstract:
1. A sheet material transporting device comprising: a plurality of first endless belts that is formed by band-shaped material; a driving member that, by rotating, circulates the first endless belts, the plurality of first endless belts being looped around the driving member and aligned in an axial direction of the driving member; a first driven member that is slave-rotated in conjunction with circulation of the first endless belts, the plurality of first endless belts being looped around the first driven member and aligned in an axial direction of the first driven member; a supporting member that supports the driving member at a downstream side in a sheet material transporting direction and the first driven member at an upstream side in the sheet material transporting direction, the supporting member being provided at an inner peripheral side of the first endless belts; a second endless belt that is provided between the first endless belts and circulated by the driving member, the second endless belt being formed by a band-shaped material and looped around the driving member; a second driven member that is provided between the first driven member and the driving member and slave-rotated in conjunction with circulation of the second endless belt, the second endless belt being looped around the second driven member at an opening portion of the supporting member; and a detecting member that detects a sheet material that is transported, the detecting member being provided between the first driven member and the second driven member and between the first endless belts, and being fixed to the supporting member, wherein the supporting member includes a downstream side supporting member that is disposed at a downstream side in the sheet material transporting direction and has a concave portion formed in an end portion thereof, and an upstream side supporting member that is disposed at an upstream side in the sheet material transporting direction and abutted against the end portion of the downstream side supporting member such that the concave portion forms the opening portion, and a tension imparting section that imparts tension to the second endless belt is provided at the downstream side supporting member.