Patent ID: 7992859
Filing Date: 2011-08-09
Classification: G03G

Abstract:
1. A sheet feeding apparatus, comprising: a feed roller, which includes a roller main body and roller shafts, and which feeds a sheet; a supporting portion which detachably supports the feed roller in an axial direction, wherein the supporting portion supports the roller shafts of the feed roller in an elastic manner and the feed roller is detached by moving the roller main body along the one axial direction of the roller shafts against elasticity; a lock member which is movable between a lock position where the detachment of the feed roller is restricted and a lock release position where the detachment of the feed roller is allowed, wherein the lock member includes a restricting member which is provided on a side of a detachment direction of the feed roller and the restricting member restricts a movement of the roller main body along the one axial direction of the roller shafts; a holding portion which holds the lock member that has moved to the lock release position, the holding portion holding the lock member that has moved along with the movement of the roller main body in the one axial direction; a fixing portion which fixes the lock member held by the holding member; and a moving mechanism which releases a fix of the lock member by the fixing portion and moves the lock member held at the lock release position by the holding portion to the lock position in conjunction with a mounting operation of the feed roller when the feed roller is mounted on the supporting portion by moving of the roller main body in an opposite direction with the one axial direction.