Patent ID: 8439353

Claim:
A sheet feeding device comprising: a sheet feed roller for feeding sheets one by one; a drive shaft supporting the sheet feed roller; a lever member having a bearing portion supporting the drive shaft; and a bearing support member supporting the bearing portion, the bearing support member being supported in a sheet feeding device body for movement between a sheet feeding position which causes the drive shaft to be positioned for the sheet feed roller to exert a sheet feeding pressure on a sheet and a separated position which causes the drive shaft to be positioned for the sheet feed roller to fail to exert the sheet feeding pressure on the sheet, the lever member being pivotally movable about the bearing portion between a first position which causes the bearing support member to be positioned in the sheet feeding position while causing the bearing portion to be supported by the bearing support member, a second position which causes the bearing support member to be positioned in the separated position while causing the bearing portion to be supported by the bearing support member and a third position which causes the bearing support member to be positioned in the separated position while allowing the bearing portion to be detached from the bearing support member, wherein the lever member has a cam portion which comes into contact with the sheet feeding device body when the lever member moves between the first position, the second position and the third position, and the cam portion has a cam shape.