Patent ID: 7377414
Filing Date: 2008-05-27
Classification: B27F

Abstract:
1. A cartridge drawably provided in a stapler main body comprising: a cartridge main body provided with a storage chamber for detachably storing a staple refill, an engaging member for engaging one side of the staple refill stored in the storage chamber and a lock member for locking the engaging member; wherein the lock member has an abutting portion, wherein the lock member is structured such that the abutting portion abuts on a sheet-like connected staple discharged from a discharge port of the staple refill when the staple refill is stored in said storage chamber; wherein the lock member is configured to lock the engaging member to prevent the release of the staple refill when the abutting portion abuts on the sheet-like connected staple; wherein the lock member is configured to unlock said engaging member to enable the release of the staple refill when the abutting portion does not abut on the sheet-like connected staple; wherein the lock member is provided in the cartridge main body such that it can oscillate, having the abutting portion formed at one end of the lock member and a latch portion formed at the other end; wherein the abutting portion emerges into the storage chamber to abut on the sheet-like connected staple through a through-hole formed in said cartridge main body; wherein the latch portion latches said engaging member by oscillating the latch portion of the lock member in a latching direction when the abutting portion abuts on the sheet-like connected staple; and, wherein the lock member unlatches the engaging member by oscillating the latch portion of the lock member in an unlatching direction when the abutting portion does not abut on the sheet-like connected staple.