Combined punching and stapling device

Details Combined punching and stapling device Combined punching and stapling device

1979-02-26

1980-12-23

Meister, J. M.

Elongated-member-driving apparatus

With means to shape work or cut product

Cutting means

83597, 83687, B25C 502

Patent

active

042405726

ABSTRACT:
In a hand-operated punching device such as that incorporated with a stapler to enable the same both to staple and perforate sheets of paper or the like, an improved punch element is provided which is movable into and out of a hole in a die for perforation. The punch element has three or more sharp-edged cutting teeth formed peripherally on one end thereof in order to improve the perforating or cutting ability of the device. The axis of the pivot pin connecting the base, lever and staple magazine lies in a plane extending transversely to the longitudinal axis of the punch element intermediate between the distal end thereof and a location thereon to which the punch element is allowed to advance relative to the inlet of the hole. Numerous variations are possible in the structural details of the punch element.

REFERENCES:
patent: 1574159 (1926-02-01), Larkin
patent: 1766308 (1930-06-01), Rochat
patent: 1936783 (1933-11-01), Chase
patent: 2558567 (1951-06-01), Kaeser
patent: 3130885 (1964-04-01), Fleming
patent: 3392447 (1968-07-01), Hendricks et al.
patent: 3907190 (1975-09-01), Mitsuhashi

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