Sheet material cutting apparatus
OwnerJoseph Schwartzinventor
Life of this patent
Estimating the term…
Abstract
A mat cutting apparatus is described for cutting sheet material. A cutting board is provided on which a pair of longitudinal guide bars are mounted with a predetermined spacing between them. The spacing is selected to snugly receive a cutting block. The cutting block is formed of a guide block on which a knife assembly is movably mounted. The guide block fits snugly between the guide bars to enable formation of a precision cut when the knife assembly is plunged into a mat to be cut. Several embodiments for cutting mats are shown including straight and angle cutters and a cutter adapted for use with a template.
Claims17
A mat cutting apparatus comprising
- a cutting board to support a mat to be cut on a surface of the board, said cutting board being provided with a pair of parallel longitudinal guide bars affixed to and spaced above the cutting board to enable a mat to fit between the guide bars and said cutting board surface, said parallel guide bars being selectively laterally spaced from each other to form lateral guide surfaces for a mat cutting block adapted to snugly fit between the guide bars for longitudinal movement along the guide bars, and cutting board further having a groove parallel to and located between the guide bars to receive a knife edge protruding from the mat cutting block;
- and
- a mat cutting block formed with a guide block and a knife assembly movably mounted to the guide block for movement from a retracted position to a mat cutting position, said guide block being formed with a cutter base having a flat surface for planar movement across a mat to be cut and being sized to snugly fit and slide between the guide bars.
A cutting block for use with a mat cutting apparatus formed with a cutting board and a pair of guide bars mounted in parallel on the cutting board with a predetermined spacing between them comprising
- a guide block formed of a cutter base having a generally flat underside adapted fo form a flush contact with a mat to be cut and sized to snugly fit between said guide bars, and a knife guide plate affixed to the cutter base and extending upwardly therefrom;
- and
- a knife assembly movably mounted to the knife guide plate, said knife assembly being mounted for sliding movement between retracted position and cutting position on the knife guide plate.
A cutting block for use with a mat cutting apparatus formed with a template having a cut-out terminating at an edge, comprising
- a guide block formed of a cutter base having a generally flat underside adapted to form a flush contact with a mat to be cut, and a knife guide plate affixed to the cutter base and extending upwardly therefrom;
- and
- a knife assembly including a knife and movably mounted to the knife guide plate, said knife assembly being mounted for sliding movement between a retracted position and a knife cutting position on the knife guide plate;
- said cutter base underside further terminating at a pair of rounded guide edges terminating short of a side of the cutter base to define a recess shaped to receive the side of the cut-out in the template and enable movement of the cutter base around the cut-out side, with said rounded guide edges respectively located on opposite sides of the knife in its cutting position.
Dependencies are inferred from the claim text.