Hole punch

A hole punch, comprising:

• a base having a longitudinal axis, the base having a first end and a second end;
• a lever system movable from a pre-actuation position to punch position, the lever system comprising:
• a first lever having a first end pivotally connected to the first end of the base, the first lever constructed and arranged to pivot about an axis that is substantially perpendicular to the longitudinal axis;
• and
• a second lever having a first end pivotally connected to the second end of the base and a second free end, the second lever constructed and arranged to pivot about an axis that is substantially perpendicular to the longitudinal axis, the second lever cooperating with the first lever such that actuation of the free end of the second lever causes the first lever to move;
• at least one punch head having a punch and mounted to the base and operatively coupled to the lever system such that upon actuation of the lever system, the punch moves from a rest position to a deployed position;
• a lock operatively coupled to the lever system, the lock constructed and arranged to engage with the first and second levers to hold the levers in a stowed position located at or between the pre-actuation position and the punch position;
• wherein the lock is disposed in the second lever, the lock having a hook constructed and arranged to be selectively engageable with a packet in the first lever upon actuation of the lock;
• and
• a slide rule constructed and arranged to aid with alignment of a sheet of paper relative to the punch heads, the slide rule having a first portion slidingly engaged in the base and a second, upstanding portion, the slide rule being formed of a first material, the upstanding portion comprising a cover formed of a second material that is different from the first material.

A hole punch, comprising:

• a base having a longitudinal axis, the base having a first end and a second end;
• a lever system movable from a pre-actuation position to punch position, the lever system comprising:
• a first lever having a first end pivotally connected to the first end of the base, the first lever constructed and arranged to pivot about an axis that is substantially perpendicular to the longitudinal axis;
• and
• a second lever having a first end pivotally connected to the second end of the base and a second free end, the second lever constructed and arranged to pivot about an axis that is substantially perpendicular to the longitudinal axis, the second lever cooperating with the first lever such that actuation of the free end of the second lever causes the first lever to move;
• at least one punch head having a punch and mounted to the base and operatively coupled to the lever system such that upon actuation of the lever system, the punch moves from a rest position to a deployed position;
• a lock operatively coupled to the lever system, the lock constructed and arranged to engage with the first and second levers to hold the levers in a stowed position located at or between the pre-actuation position and the punch position;
• wherein the lock is disposed in the second lever, the lock having a hook constructed and arranged to be selectively engageable with a pocket in the first lever upon actuation of the lock;
• and
• wherein the at least one punch head comprises a sheet-entry surface having a radius of approximately 11 mm.

A hole punch, comprising:

• a base having a longitudinal axis, the base having a first upstanding portion at a first end of the base and a second upstanding portion at a second end of the base;
• a lever system movable from a pre-actuation position to punch position, the lever system comprising:
• a first lever having a first end pivotally connected to the first upstanding portion, the first lever constructed and arranged to pivot about an axis that is substantially perpendicular to the longitudinal axis, the first lever having a first flange near the first end of the first lever;
• a second lever having a first end pivotally connected to the second upstanding portion and a second free end, the second lever constructed and arranged to pivot about an axis that is substantially perpendicular to the longitudinal axis, the second lever having a second flange near the first end of the second lever, an underside surface of the second lever engaging the first lever such that actuation of the free end of the second lever causes the first lever to move;
• and
• a third lever having a first end connected to the first flange and a second end connected to the second flange;
• and
• at least one punch head mounted to the base, the punch head having a punch, with the third lever adapted to engage the punch and move the punch from a rest position to a deployed position upon actuation of the free end of the second lever;
• and
• a lock operatively coupled to the lever system, the lock comprising a hook disposed through the second lever and constructed and arranged to engage a pocket disposed on the first lever to hold the levers in a stowed position located at or between the pre-actuation position and the punch position.