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US 10,655,298 B2Granted
Shear blade having a positive camber and method of adding a positive camber to a shear blade
AssigneeCaterpillar Inc.
InventorJohn K. Clemons
Life of this patent
Estimating the term…
Abstract
A hydraulically activated shear is provided. The shear includes: a first jaw; a second jaw sliding past the first jaw in a shearing motion; and a first cutting plate attached to at least one side of the first and second jaws, the first cutting plate defining a shear edge and a shear surface, the shear surface having a positive camber with respect to a plane perpendicular to the jaws, wherein at least one of the first and second jaws is actuated by a hydraulic cylinder.
Claims17
A shear comprising:
- a first jaw having a first longitudinal side;
- a second jaw connected to the first jaw by a pivot shaft and having a second longitudinal side parallel to the first longitudinal side, at least one of the first and second jaws being configured to pivot with respect to the other of the first and second jaws about a longitudinal axis of the pivot shaft to slide the second longitudinal side of the second jaw past the first longitudinal side of the first jaw in a shearing motion;
- and
- a first side cutting plate attached to the first longitudinal side of the first jaw,
- wherein the first side cutting plate defines a cutting face that has a cutting edge, the cutting edge being perpendicular to the longitudinal axis of the pivot shaft,
- wherein the cutting face has a positive camber relative to movement of the second jaw past the first jaw in the shearing motion such that the cutting edge is located furthest from the first jaw to which the first side cutting plate is attached than any other portion of the cutting face.
3 more elements
A shear comprising:
- a first jaw having a first longitudinal side shear surface;
- and
- a second jaw having a second longitudinal side shear surface parallel to the first longitudinal side shear surface,
- wherein at least one of the first jaw and the second jaw are pivotally connected via a pivot shaft and pivotable about a longitudinal axis of the pivot shaft with respect to the other of the first and second jaws,
- wherein the first and second jaws are configured to slide past each other during a shearing motion,
- wherein at least one of the first and second longitudinal side shear surfaces has a cutting face having a cutting edge perpendicular to the longitudinal axis of the pivot shaft, and
- wherein the cutting face has a positive camber relative to movement of the first and second jaws past each other in the shearing motion such that the cutting edge is located furthest from said at least one of the first and second longitudinal side shear surfaces that has the cutting face than any other portion of the cutting face.
4 more elements
Dependencies are inferred from the claim text.