A sheet conveying apparatus includes a bottom plate, a side restriction member extending in a sheet conveying direction, drive roller rotatable about a first axis substantially orthogonal to the sheet conveying direction, and a driven roller facing the drive roller and rotatable about a second axis inclined relative to the first axis. The driven shaft includes a shaft portion and an elastic portion. The shaft portion integrally includes a first extending portion, a second extending portion, and an intermediate portion located therebetween. The elastic portion is fitted over the intermediate portion. The first extending portion includes a first protruding portion. The second extending portion includes a second protruding portion. A first distance from the second axis to an outer peripheral surface of the first protruding portion is greater than a second distance from the second axis to an outer peripheral surface of the second protruding portion.

A sheet feeding device, which is included in an image forming apparatus, includes a roller detachably attached to the image forming apparatus and configured to feed a sheet in a sheet conveying direction, a shaft configured to engage with the roller and transmit a driving force to the roller, a movable body configured to rotate in a direction of rotational axis and includes a holding portion configured to engage with the second engaging portion of the roller and rotatably hold the roller and a guide configured to guide attachment of the second engaging portion of the roller to the holding portion, and a biasing body configured to apply a biasing force and bias the movable body from a drive receiving side to a drive transmitting side.

The present invention provides an electrode running roller which causes an electrode sheet in which a current collector is coated with an electrode active material to run, wherein the running roller includes a cylindrical section, and a tapered section extending from one end portion of the cylindrical section, and the tapered section has a shape in which an outer diameter gradually decreases toward a distal end portion of the tapered section.

A sheet conveying apparatus includes a bottom plate, a side restriction member extending in a sheet conveying direction, a drive roller rotatable about a first axis substantially orthogonal to the sheet conveying direction, and a driven roller facing the drive roller and rotatable about a second axis inclined relative to the first axis. The driven shaft includes a shaft portion and an elastic portion. The shaft portion integrally includes a first extending portion, a second extending portion, and an intermediate portion located therebetween. The elastic portion is fitted over the intermediate portion. The first extending portion includes a first protruding portion. The second extending portion includes a second protruding portion. A first distance from the second axis to an outer peripheral surface of the first protruding portion is greater than a second distance from the second axis to an outer peripheral surface of the second protruding portion.

A sheet feeding device, which is included in an image forming apparatus, includes a roller detachably attached to the image forming apparatus and configured to feed a sheet in a sheet conveying direction, a shaft configured to engage with the roller and transmit a driving force to the roller, a movable body configured to rotate in a direction of rotational axis and includes a holding portion configured to engage with the second engaging portion of the roller and rotatably hold the roller and a guide configured to guide attachment of the second engaging portion of the roller to the holding portion, and a biasing body configured to apply a biasing force and bias the movable body from a drive receiving side to a drive transmitting side.