Stapleless stapler

B - Operations – Transporting – 31 – F

Patent

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B31F 5/02 (2006.01)

Patent

CA 1317697

ABSTRACT OF THE DISCLOSURE The present invention relates to a stapleless paper fasten- ing apparatus comprising: a base; a housing mounted on the base; a tubular member mounted on the housing, the tubular member having an inwardly extending annular flange at a bottom end, the flange defining a central aperture; a shaft in the tubular member, coaxial therewith and slidable axially through the central aperture into the housing; a handle reciprocally mounted on the tubular member for movement towards and away from the housing, the handling including an outer annular member slidable on the outside of the tubular member, and also having an inner annular member slidable on the inside of the tubular member; a spring positioned between the annular flange and a bottom end of the inner annular member, urging the handle away from the hous- ing; the shaft being attached at an upper end to the handle for movement with the handle; a punch and chisel reciprocally mounted in the housing for movement by the shaft, the punch having a hollow U-shaped cross-section adapted to cut a tongue-shaped section from sheets of paper; and a bending member pivotally mounted in the punch, the bending member including means for engaging on the bottom part of the housing to pivot the bending member. All of the components being arranged such that initial actuation of the handle pushes down the punch and the chisel to cut tongue-shaped sections from the sheets and cut a slot in the sheets, continued actuation of the handle pivoting the bending member to bend up the tongue for insertion into the slot cut by the chisel.

578617

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