Stapler having a clinching mechanism
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United States of America Patent
Stats
-
May 14, 1996
Grant Date -
N/A
app pub date -
Dec 28, 1994
filing date -
Jun 30, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A stapler for driving staples (2) into an object (3) has a drive element (1) for pushing a U-shaped staple (2) out of a magazine (10) to drive its legs (2a) through the object. The stapler also has an anvil device (11) comprising two anvil members (4) which are substantially symmetrically arranged with respect to the staple (2) driven into the object, and which are each pivotable about an axis (5) substantially perpendicular to the plane of the staple, the anvil members (4) being pivotable between a starting position, in which they are so positioned that the free leg ends of the staple (2) will engage the respective anvil member when the staple is driven into the object, and an end position, in order, when pivoting from the starting position to the end position, to bend the projecting end portions of the staple legs (2a) driven through the object (3), against the object in a direction towards each other. The axis (5) of each anvil member ( 4) is so located that the anvil member, when pivoting from the starting position to the end position, is swung towards the other anvil member at the side of the anvil axis (5) facing the staple (2).
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