US 7,549,362 B2
Precision shearing to finish machined metallic components
Ryan L. Hanks, Bunker Hill, Ill. (US); and Keith A. Young, St. Louis, Mo. (US)
Assigned to The Boeing Company, Chicago, Ill. (US)
Filed on Oct. 01, 2004, as Appl. No. 10/956,813.
Prior Publication US 2006/0070501 A1, Apr. 06, 2006
Int. Cl. B26D 1/00 (2006.01)
U.S. Cl. 83—694  [30/272.1] 8 Claims
OG exemplary drawing
 
1. An apparatus for shearing material from a workpiece comprising:
a scissor mechanism comprising a first handle pivotally connected to a second handle;
a first jaw connected to the first handle and a second jaw connected to the second handle;
a base connected to the first jaw;
a first bar connected to the base, wherein a first slot is disposed in the first bar;
a second bar connected to the base opposite the first bar, wherein a second slot is disposed in the second bar;
a cutter connected to the second jaw, wherein the cutter is disposed between the first jaw and the second jaw, and wherein the cutter is configured to cut through a workpiece as the second jaw is moved towards a closed position with respect to the first jaw;
a first tab connected to the cutter, wherein the first tab is disposed in the first slot such that the first tab can slide within the first slot as the second jaw moves relative to the first jaw;
a second tab connected to the cutter, wherein the second tab is disposed in the second slot such that the second tab can slide within the second slot as the second jaw moves relative to the first jaw; and
a support connected to and vertically extending from the base in a plane of the cutter beyond a top surface of the base to oppose the cutter wherein the support is spaced apart from the first and second bars so as to align and buttress the workpiece relative to the cutter.