Patent ID: 8100251

Claim:
A bill handling device, comprising: a housing; a bill insertion slot which is provided on a front side of the housing and through which a bill can be inserted; a bill container configured to store the bill inserted through the bill insertion slot, the bill container being movable back and forth in a bill insertion direction; an exit which is provided adjacent to the bill insertion slot provided on the front side of the housing and is configured to allow the bill container to project out of the housing through the exit; an openable/closable shutter configured to close the exit; a shutter drive module configured to open and close the shutter; a lock member which is movably supported on the housing between a locked position where the shutter is not allowed to open and an unlocked position where the shutter is allowed to open; and a lock member moving module configured to move the lock member between the locked position and the unlocked position, wherein the lock member has an opposite portion adjacent to and facing the shutter, and first recesses and projections are formed on the opposite portion along a moving direction of the lock member; second projections and recesses that can engage the first recesses and projections are formed on a portion of the shutter that faces the opposite portion of the lock member; in the locked position, the first recesses and projections of the lock member and the second projections and recesses of the shutter are held such that they do not engage with each other, preventing the shutter from opening; and in the unlocked position, the first recesses and projections of the lock member and the second projections and recesses of the shutter engage with each other thus allowing the shutter to be opened.