Sheet conveyance apparatus and image forming apparatus

A sheet conveyance apparatus comprising:

• a first driving roller and a second driving roller disposed adjacent to each other in a sheet width direction orthogonal to a sheet conveyance direction, each of the first driving roller and the second driving roller being configured to rotate when receiving a driving force;
• a first steering portion configured to change a tilt angle of a rotation axis of the first driving roller with respect to the sheet width direction;
• a second steering portion configured to change a tilt angle of a rotation axis of the second driving roller with respect to the sheet width direction;
• a first driven roller configured to convey a sheet together with the first driving roller while nipping the sheet, the first driven roller being configured to pivot, in accordance with a change in the tilt angle of the rotation axis of the first driving roller, around a first pivot axis that intersects both of the sheet conveyance direction and the sheet width direction;
• a second driven roller configured to convey the sheet together with the second driving roller while nipping the sheet, the second driven roller being configured to pivot, in accordance with a change in the tilt angle of the rotation axis of the second driving roller, around a second pivot axis that intersects both of the sheet conveyance direction and the sheet width direction;
• and
• a separation mechanism configured to switch a state of the first driven roller and the second driven roller between an abutment state and a separation state, the abutment state being a state where the first driven roller and the second driven roller are respectively in contact with the first driving roller and the second driving roller, the separation state being a state where the first driven roller and the second driven roller are respectively separated from the first driving roller and the second driving roller,
• wherein the separation mechanism includes a swing member configured to support the first driven roller and the second driven roller and swing around a first swing axis extending along the sheet conveyance direction, and
• wherein the first swing axis is positioned between the first driven roller and the second driven roller in the sheet width direction.