Stapler apparatus that removes only jammed staples
AssigneesACCO Brands Corporation, Nisca Corporation
InventorNaoto Mochizuki
Life of this patent
Estimating the term…
Abstract
A stapler is provided that consistently remove only jammed staples from the stapler. Guide grooves are formed in a guide unit of a cartridge, and the guide grooves support a sheet of staples. Stoppers are formed on the edge of the walls of the guide unit to block the ends of the guide grooves. Release holes that open upwardly are formed in the guide grooves in front of the stoppers. Because a jammed staple protrudes from the release holes, the jammed staple can be pulled out from the release holes using the fingers. As a result, jammed staples can be effectively removed from the stapler.
Claims20
A stapler comprising:
- a cartridge having a housing unit for housing a sheet of staples and a guide unit for supporting the sheet of staples drawn from the housing unit;
- and
- a main body for accommodating the cartridge,
- wherein the main body is equipped with a driver mechanism to detach a staple from the sheet of staples and drive the detached staple through a stack of paper and a sheath bracket for guiding the driver mechanism in a direction of the driving motion, wherein a stopper on the guide unit of the cartridge restricts the position of the end of the sheet of staples, and wherein release holes are situated in a position corresponding to the end of the sheet of staples restricted by the stopper so the staple driven by the driver mechanism passes through in the driving direction.
A stapler comprising:
- a cartridge having a housing unit for housing a sheet of staples and a guide unit for supporting the sheet of staples drawn from the housing unit;
- and
- a main body for accommodating the cartridge,
- wherein the main body is equipped with a driver to detach a staple from the sheet of staples and drive the detached staple through a stack of paper, and a sheath for guiding the driver in a direction of the driving motion, wherein a stopper restricts the position of the end of the sheet of staples, and wherein the guide unit supports the sheet of staples to a point about one staple-width from the stopper.
A staple cartridge comprising:
- a housing for housing a sheet of staples;
- and
- a guide unit for supporting the sheet of staples drawn from the housing, the guide unit defining a staple pathway and including a stopper defining an end of the staple pathway.
Dependencies are inferred from the claim text.