| 摘要 |
PROBLEM TO BE SOLVED: To eliminate uselessness by minimizing an abandoning part by replacing only an inner cartridge by dividing a cartridge into the inner cartridge bound by adhering plural needle sheets layered in a multistage shape and an outer cartridge attached to a motor-driven stapler body. SOLUTION: In a cardboard U-shaped case of an inner cartridge 1, both side pieces and a rear piece are formed in a U shape, plural needle sheets (a) by adhering/connecting straight needles in a sheet shape are formed in a multistage shape in a layered state to be pressed down from the left/right both sides and a rear part so that the needle sheets (a) are wound all over from the outside of the case by a paper binding belt. An outer cartridge 2 houses the inner cartridge 1, and has a structure for driving out the front end needle after being molded in a U shape by sending out the needle to a prescribed position in order from the needle sheets (a) of the lowest stage. The outer cartridge 2 is composed of a cartridge body 2a and a housing body 2b of the inner cartridge 1 openable/closable to the cartridge body 2a. |
