Precision cutting assembly

A precision cutting assembly for cutting material having a thickness, said assembly comprising:

• a) frame means including two laterally spaced elongated frame members, material support means having a cutting edge structure and being mounted to the frame means, and cutter means for cutting material which is disposed on the material support means,
• b) the cutter means including cutting blade carrier means, cutting blade means mounted to said cutting blade carrier means, said cutting blade carrier means having a longitudinal axis,
• c) the cutting blade carrier means is movably mounted to the frame means for moving along a linear path defined between said elongated frame members,
• d) pressure producing means disposed on said frame means for adjustably applying pressure from a said elongated frame member against the cutting blade carrier means to hold the cutting blade carrier means within precise parallel limits of movement along said linear path, and
• e) drive means for moving the cutting blade carrier means along the linear path during a cutting operation into and out of a cutting zone located adjacent the cutting edge structure,
• f) the cutting blade carrier means causing the cutting blade means to precision cut segments from material disposed over the cutting edge structure when moving through the cutting zone defined by the thickness of the material being cut,
• g) said pressure producing means including pressure plate means floatingly and contiguously juxtaposed the cutting blade carrier means and pushing means for urging the pressure plate means for transmitting pressure toward and against the cutting blade carrier means in a direction parallel to the longitudinal axis of the cutting blade carrier means.

A precision cutting assembly for cutting material having a thickness, said assembly comprising:

• a) frame means including two laterally spaced elongated frame members, material support means having a cutting edge structure and being mounted to the frame means, and cutter means for cutting material which is disposed on the material support means,
• b) the cutter means including cutting blade carrier means and cutting blade means mounted to said cutting blade carrier means, said cutting blade carrier means having a longitudinal axis extending between two outer end portions of the cutting blade carrier means,
• c) the cutting blade carrier means is movably mounted to the frame means for moving along a linear path defined between said elongated frame members,
• d) pressure producing means disposed on said frame means for adjustably applying pressure from a said elongated frame member and transmits said pressure against an outer end portion of the cutting blade carrier means, and
• e) drive means for moving the cutting blade carrier means along said linear path during a cutting operation into and out of a cutting zone located adjacent the cutting edge structure,
• f) said drive means including means for exerting a full drive force against said cutting blade carrier means to transmit a substantially equal force directed outwardly toward said two outer end portions,
• g) the cutting blade carrier means causing the cutting blade means to precision cut segments from material disposed over the cutting edge structure when moving through the cutting zone defined by the thickness of the material being cut.

A precision cutting assembly for cutting material having a thickness, said assembly comprising:

• a) frame means including two laterally spaced elongated frame members, material support means having a cutting edge structure and being mounted to the frame means, and cutter means for cutting material which is disposed on the material support means,
• b) the cutter means including cutting blade carrier means and cutting blade means mounted to said cutting blade carrier means, said cutting blade carrier means having a longitudinal axis,
• c) the cutting blade carrier means is movably mounted to the frame means for moving along a linear path defined between said elongated frame members,
• d) pressure producing means disposed on said frame means for adjustably applying pressure from a said elongated frame member against the cutting blade carrier means to hold the cutting blade carrier means within precise parallel limits of movement along said linear path, and
• e) drive means for moving the cutting blade carrier means along the linear path during a cutting operation into and out of a cutting zone located adjacent the cutting edge structure,
• f) the cutting blade carrier means causing the cutting blade means to precision cut segments from material disposed over the cutting edge structure when moving through the cutting zone defined by the thickness of the material being cut,
• g) said two laterally spaced elongated frame members each having a lower end portion mounted to said base frame means and a top end portion mounted to a top carrier support frame structure,
• h) the drive means including elongate drive rod means having precision threaded outer surface means intermediate a coupling end portion operatively connected to the cutting blade carrier means and a rotation drive end portion connected to rotation activating means for rotating said drive rod means, and
• i) the top carrier support frame structure including a threaded bore having a precision threaded inner surface means for engaging the precision threaded outer surface means of the drive means and a longitudinal axis which extends through the top carrier support frame structure and is disposed in a direction parallel to the linear path.

A precision cutting assembly for cutting material having a thickness, said assembly comprising:

• a) frame means including two laterally spaced elongated frame members, material support means having a cutting edge structure and being mounted to the frame means, and cutter means for cutting material which is disposed on the material support means,
• b) the cutter means including cutting blade carrier means and cutting blade means mounted to said cutting blade carrier means,
• c) the cutting blade carrier means is movably mounted to the frame means for moving along a linear path defined between said elongated frame members,
• d) pressure producing means disposed on said frame means for adjustably applying pressure from a said elongated frame member against the cutting blade carrier means to hold the cutting blade carrier means within precise parallel limits of movement along said linear path, and
• e) drive means for moving the cutting blade carrier means along the linear path during a cutting operation into and out of a cutting zone located adjacent the cutting edge structure,
• f) the cutting blade carrier means causing the cutting blade means to precision cut segments from material disposed over the cutting edge structure when moving through the cutting zone defined by the thickness of the material being cut,
• g) said material support means including indicator guide means and abutment means,
• h) said indicator guide means includes first guide element means fixedly disposed on a first side of the cutting blade means for directing a measured amount of the material to be cut past the cutting blade means, and
• i) said abutment means being located on a second side of the cutting blade means opposite said first side for limiting movement of the material past the cutting blade means to define the measured amount of the material to be cut between the abutment means and the cutting blade means.

A precision cutting assembly for cutting material having a thickness, said assembly comprising:

• a) frame means, material support means having a cutting edge structure and being mounted to the frame means, and cutter means for cutting material which is disposed on the material support means,
• b) the cutter means including cutting blade carrier means and cutting blade means mounted to said cutting blade carrier means,
• c) the cutting blade carrier means is mounted to the frame means for moving along a linear path,
• d) pressure producing means for contiguously holding the cutting blade carrier means within precise parallel limits of movement along said linear path, and
• e) drive means for moving the cutting blade carrier means along the linear path during a cutting operation into and out of a cutting zone located adjacent the cutting edge structure,
• f) the cutting blade carrier means causes the cutting blade means to precision cut segments from material disposed over the cutting edge structure when moving through the cutting zone defined by the thickness of the material being cut,
• g) the frame means including base frame means and two laterally spaced carrier support frame structures each having a lower end portion mounted to said base frame means and a top end portion mounted to a top carrier support frame structure,
• h) the drive means including elongate drive rod means having precision threaded outer surface means intermediate a coupling end portion operatively connected to the cutting blade carrier means and a rotation drive end portion connected to rotation activating means, and
• i) the top carrier support frame structure including a threaded bore having a precision threaded inner surface means for engaging the precision threaded outer surface means of the drive means and a longitudinal axis which extends through the top carrier support frame structure and is disposed in a direction parallel to the linear path,
• j) the rotation activating means includes manually operated handle means fixedly connected to the rotation drive end portion for rotating the drive rod means through the threaded bore of the top carrier support frame structure,
• k) the coupling end portion of the drive rod means includes coupling bearing means for engaging the cutting blade carrier means to move the blade carrier means back and forth along the linear path,
• l) the drive rod means including an elongate drive rod member having a shaped rod end bearing surface located at a free coupling end of the drive rod member and in frictional engagement with a corresponding opposed rod end bearing receiving surface which is disposed on the blade carrier means,
• m) the coupling bearing means having a bracket bearing surface means engaging bracket means of the blade carrier means, and
• n) during the cutting operation, said rod end bearing surface pushes the blade carrier means in a cutting direction toward the cutting edge structure and said bracket bearing surface means pulls against the bracket means in a retrieving direction away from the cutting edge structure,
• o) the coupling bearing means including a coupling bearing member having a tubular section with an inner bore surface threadingly engaged with precision threads on the threaded drive rod member and with lock nut means for securing the coupling bearing member at a fixed location on the threaded drive rod member,
• p) said tubular section including an outer annular flange portion which carries the bracket bearing surface means in contact with said bracket means.