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Combination Heavy Duty Hole Punch and Cutter

IP.com Disclosure Number: IPCOM000109130D
Original Publication Date: 1992-Jul-01
Included in the Prior Art Database: 2005-Mar-23
Document File: 1 page(s) / 43K

Publishing Venue

IBM

Related People

Schmidt, RR: AUTHOR [+2]

Abstract

A heavy-duty hole punch 10 is one of a number of such hole punches which may be connected together and operated by a single lever so as to punch a number of holes simultaneously in a medium, such as paper or foil. Each such cutter has a housing 12 which supports a punch 14 having a cutting edge 15 generally circular in shape at the bottom edge thereof. A spring 16 surrounds the shaft 14 so as to return the shaft to its upper position after a cut is made. An anvil 18 provides a point of contact with the lever or other mechanism for providing the force to punch the hole in the medium. There is a keyway 20 which is affixed to shaft 14 to prevent the rotation of the shaft 14. (Image Omitted)

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This is the abbreviated version, containing approximately 100% of the total text.

Combination Heavy Duty Hole Punch and Cutter

      A heavy-duty hole punch 10 is one of a number of such hole
punches which may be connected together and operated by a single
lever so as to punch a number of holes simultaneously in a medium,
such as paper or foil.  Each such cutter has a housing 12 which
supports a punch 14 having a cutting edge 15 generally circular in
shape at the bottom edge thereof.  A spring 16 surrounds the shaft 14
so as to return the shaft to its upper position after a cut is made.
An anvil 18 provides a point of contact with the lever or other
mechanism for providing the force to punch the hole in the medium.
There is a keyway 20 which is affixed to shaft 14 to prevent the
rotation of the shaft 14.

                            (Image Omitted)

      The punch also includes an angled blade 22 which moves through
a pair of slots 24 and 26 in housing 12 to shear the medium, such
as a foil or paper, to permit easy insertion and removal of the
medium from a binder.  The punch may be operated at two levels of
force.  A first and lower force level will provide the circular hole
in the medium through the action of cutting edge 15 at the bottom of
shaft 14 and a second and higher level of force will cause blade 22
to shear the medium to provide a slit so that the medium can be
easily inserted or removed from a binder.

      Disclosed anonymously.