Device for cutting protrusions
View Patent ↗An apparatus for clipping a protrusion of material is provided. The protrusion may, for example, be a bolt head, a nut, a rivet, a weld bead, or a temporary assembly alignment tab protruding from a substrate surface of assembled components. The apparatus typically includes a cleaver having a cleaving edge and a cutting blade having a cutting edge. Generally, a mounting structure configured to confine the cleaver and the cutting blade and permit a range of relative movement between the cleaving edge and the cutting edge is provided. Also typically included is a power device coupled to the cutting blade. The power device is configured to move the cutting edge toward the cleaving edge. In some embodiments the power device is activated by a momentary switch. A retraction device is also generally provided, where the retraction device is configured to move the cutting edge away from the cleaving edge.
1. An apparatus for clipping a protrusion of material on a surface of a substrate comprising:
a shearing block having a shearing edge for engaging a first portion of the protrusion of material;
a cutting blade having a cutting edge for clipping the protrusion of material as the cutting blade engages an opposing second portion of the protrusion of material;
a mounting structure having a sole under-surface for placing on the surface of the substrate, wherein the mounting structure confines the shearing block and the cutting blade and permits a range of relative movement between the shearing edge and the cutting edge for clipping the protrusion of material such that the relative movement of the cutting edge is within a substantially flat plane that is substantially co-planar with the sole under-surface, wherein the cutting edge is on the surface of the substrate over the range of relative motion and wherein the mounting structure comprises a mounting plate having an upper surface and wherein the relative movement between the shearing edge and the cutting edge is within a first substantially flat plane and wherein the mounting structure comprises a parallel guide forming a second substantially flat plane that is offset from the first substantially flat plane and wherein the parallel guide forms a third substantially flat plane that is offset from the second substantially flat plane and that is offset from the first substantially flat plane; and
an actuator configured to move the cutting edge toward the shearing edge by actuation of a momentary switch proximate to the apparatus and the actuator being further configured to move the cutting edge away from the shearing edge.
2. The apparatus of claim 1 wherein:
the shearing block is a cleaver, and
the shearing edge is a cleaving edge.
3. The apparatus of claim 1 wherein the shearing block comprises an end block.
4. An apparatus for clipping a protrusion of material, the apparatus comprising:
a shearing block having a shearing edge for engaging a first portion of the protrusion of material;
a cutting blade having a cutting edge for clipping the protrusion of material as the cutting blade engages an opposing second portion of the protrusion of material;
a mounting structure having a sole under-surface wherein the mounting structure confines the shearing block and the cutting blade and permits a range of relative movement between the shearing edge and the cutting edge for clipping the protrusion of material such that the relative movement between the shearing edge and the cutting edge is within a substantially flat plane that is substantially co-planar with the sole under-surface wherein the mounting structure comprises a mounting plate having an upper surface and wherein the relative movement between the shearing edge and the cutting edge is within a first substantially flat plane and wherein the mounting structure comprises a parallel guide forming a second substantially flat plane that is offset from the first substantially flat plane and wherein the parallel guide forms a third substantially flat plane that is offset from the second substantially flat plane and that is offset from the first substantially flat plane; and
an actuator configured to move the cutting edge toward the shearing edge by actuation of a momentary switch proximate to the apparatus and the actuator being further configured to move the cutting edge away from the shearing edge.
5. The apparatus of claim 4 wherein the shearing block is a cleaver and the shearing edge is a cleaving edge.
6. The apparatus of claim 4 wherein the shearing block comprises an end block.
7. An apparatus for clipping a protrusion of material comprising:
a shearing block having a shearing edge for engaging a first portion of the protrusion of material;
a cutting blade having a cutting edge for clipping the protrusion of material as the cutting blade engages an opposing second portion of the protrusion of material;
a mounting structure comprising a mounting plate having an upper surface and having a sole under-surface wherein the mounting structure comprises a parallel guide forming a first substantially flat plane and a second substantially flat plane that is offset from the first substantially flat plane, and the mounting structure confines the shearing block and the cutting blade and permits a range of relative movement between the shearing edge and the cutting edge for clipping the protrusion of material such that the relative movement of the cutting edge is within a third substantially flat plane that is offset from the first substantially flat plane and that is offset from the second substantially flat plane and that is not between the first substantially flat plane and the second substantially flat plane; and
an actuator configured to move the cutting edge toward the shearing edge by actuation of a momentary switch proximate to the apparatus and the actuator being further configured to move the cutting edge away from the shearing edge.
8. The apparatus of claim 7 wherein:
the shearing block is a cleaver, and
the shearing edge is a cleaving edge.
9. The apparatus of claim 7 wherein the shearing block comprises an end block.