Compressive cutter mechanism having plural-edged cutter

Details Compressive cutter mechanism having plural-edged cutter Compressive cutter mechanism having plural-edged cutter

B - Operations, Transporting

26

D

B26D 1/08 (2006.01) A01G 3/08 (2006.01) B23D 15/12 (2006.01) B23D 29/02 (2006.01) B23D 35/00 (2006.01) B26D 1/06 (2006.01) B65B 13/18 (2006.01)

Patent

CA 2140807

A cutting mechanism is disclosed, which is useful in a strapping tool of a type used to apply a steel strap in a tensioned loop around a package via a series of interlocking joints comprising interlockable shoulders punched into overlapped ends of the strap. The cutting mechanism comprises an anvil arranged to support the overlapped ends of such a strap, a cutter holder movable toward and away from the anvil, an elongate cutter mounted removably to the holder so as to extend crosswise in relation to the overlapped ends such a strap when the overlapped ends of such a strap are supported by the anvil. The cutter is movable conjointly with the holder, toward and away from the anvil. The cutter has a polygonal profile defining plural, elongate, parallel cutting edges, one of which projects toward the anvil when the cutter is mounted to the holder. The cutter, which is removable from the holder when the cutting edge projecting toward the anvil becomes dull, is remountable to the holder such that another of the cutting edges projects toward the anvil. The cutter profile may be triangular, preferably equilateral, or quadrilateral, preferably rhombic or square. An equilateral, triangular profile is most preferred. The cutting mechanism has other utility, apart from a strapping tool of the type noted above.

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