SHEET CONVEYING DEVICE AND IMAGE FORMING APPARATUS PROVIDED WITH THE SAME

摘要

A sheet conveying device includes: first, second and third rollers, a conveying member, a frame, a first pressing member, and a force-generating unit. The first and second rollers rotate while nipping the sheet therebetween. The third roller and the conveying member nip the sheet therebetween. The frame is elongated parallel to an axis about which the third roller rotates and supports the third roller. The first pressing member applies a first pressing force to an axial center of the first roller to press the first roller toward the second roller and applies a reaction force of the first pressing force to the frame to press the frame in a direction toward the conveying member. The force-generating unit generates a nipping force for nipping the sheet between the third roller and the conveying member and applies an urging force to the frame in a direction away from the conveying member.

主权项

1. A sheet conveying device configured to convey a sheet along a sheet-conveying path, the sheet conveying device comprising:
a first roller configured to rotate while contacting the sheet, the first roller rotating about a rotational axis extending in an axial direction and having an axial center region in the axial direction; a second roller disposed in confrontation with the first roller, the second roller being configured to rotate while nipping the sheet in cooperation with the first roller; a third roller disposed spaced apart from the first roller, the third roller rotating about a rotational axis extending in the axial direction and being configured to rotate while contacting the sheet; a conveying member disposed in confrontation with the third roller, the conveying member being configured to nip the sheet in cooperation with the third roller; a frame elongated in the axial direction and supporting the third roller; a first pressing member configured to apply a first pressing force to the axial center region of the first roller to press the first roller toward the second roller, the first pressing member being further configured to apply, to the frame, a reaction force generated as a reaction to the first pressing force to press the frame in a direction toward the conveying member; and a force-generating unit configured to generate a nipping force for nipping the sheet between the third roller and the conveying member, the force-generating unit being further configured to apply an urging force to the frame in a direction away from the conveying member.