Variable rake shear
AssigneeSiemens Aktiengesellschaft
InventorPhilip Round
Life of this patent
Estimating the term…
Abstract
A variable rake shear comprises a housing (8), a first blade (1) mounted in a first blade mounting (4), a second blade (2) mounted in a second blade mounting (3); and a control device (5) to control movement of one blade mounting to shear the material. Each blade mounting is movable in at least one dimension relative to the housing. One blade is an active blade (1) and the other blade is a passive blade (2). A rake adjustment mechanism (6a, 6b) for at least one of the mountings (3, 4) and the mounting (4) for the active blade (1) has a torque tube linkage mechanism (10, 11, 12).
Claims21
A variable rake shear comprising:
- a housing;
- a first and a second blade mounting supported by the housing;
- a first blade mounted in the first blade mounting, a second blade mounted in the second blade mounting;
- a control device configured and operable to control movement of one of the first and second blade mountings to cause the blades to shear a material;
- each blade mounting is movable in at least one dimension relative to the housing;
- one of the first and second blades is an active blade and the other of the first and second blades is a passive blade;
- the shear further comprising a rake adjustment mechanism configured for adjusting the rake angle for at least one of the first and second blade mountings and the blade therein;
- and
- wherein the blade mounting for the active blade further comprises a torque tube linkage mechanism configured and operable for adjusting torque to control the balance of force on the blade mountings, as the blade mountings move the blades past each other.
A method of operating a variable rake shear to shear material, the method comprising;
- mounting a first blade in a first blade mounting, mounting a second blade in a second blade mounting, wherein each blade mounting is movable in at least one dimension relative to the housing to move the blades toward and past each other for shearing;
- applying a rake angle to one of the first and second blade mountings;
- wherein one blade is an active blade and the other blade is a passive blade;
- connecting the first blade mounting of the active blade to a torque tube linkage mechanism configured for;
- and controlling movement of the first blade mounting of the active blade to shear the material.
A variable rake shear comprising:
- a housing;
- a first and a second blade mounting supported by the housing;
- a first blade mounted in the first blade mounting, a second blade mounted in the second blade mounting;
- a control device configured and operable to control movement of one of the first and second blade mountings to cause the blades to shear a material;
- each blade mounting is movable in at least one dimension relative to the housing;
- one of the first and second blades is an active blade;
- the shear further comprising a rake adjustment mechanism configured for adjusting the rake angle for at least one of the first and second blade mountings and the blade therein;
- and
- wherein the blade mounting for the active blade further comprises a torque tube linkage mechanism configured and operable for adjusting torque to control the balance of force on the blade mountings, as the blade mountings move the blades past each other.
Dependencies are inferred from the claim text.