Binding machine
AssigneeACCO Brands Corporation
InventorsEzra Szoke, Milos Coric
Life of this patent
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Abstract
A binding machine includes a body, an actuator coupled with the body, and a punch mechanism housed in the body for punching a stack of sheets upon actuation of the actuator. The punch mechanism includes a plate including a plurality of punch pins. The punch pins are configured to punch through the stack of sheets during a punch stroke, the punch stroke defining a force profile. A portion of the force profile defined from a first drop in force to a last peak force before a final decrease has no more than a 15 percent change in force relative to a normalized maximum force of the force profile.
Claims21
A binding machine comprising:
- a body including a working deck on which a user binds a stack of sheets;
- an actuator coupled with the body;
- and
- a punch mechanism housed in the body for punching a stack of sheets upon actuation of the actuator, the punch mechanism including
- a plate including a plurality of punch pins, wherein four of the pins define longest pins of the plurality of punch pins, each of the four longest pins having different lengths from one another and being positioned in two pairs, one pair defining outermost and second outermost pins at one end of the plate, and one pair defining outermost and second outermost pins at another end of the plate, and wherein a fifth longest pin of the plurality of punch pins, which is shorter than the four longest pins, defines the middle pin of the plate.
Dependencies are inferred from the claim text.