Chip Breaker Patents (Class 29/DIG52)
  • Patent number: 5080535
    Abstract: A drill chips removing device, comprising a sleeve or a ring formed with a through hole at its central portion for axially passing said drill therethrough and provided with a fixing device for fixing the sleeve or the ring to the drill.
    Type: Grant
    Filed: July 6, 1990
    Date of Patent: January 14, 1992
    Assignee: Yukio Hirano
    Inventor: Yukio Hirano
  • Patent number: 4271734
    Abstract: This invention relates to an apparatus for guiding a continuous chip formed in lathing. The apparatus can guide the chip smoothly without jamming caused by, for example, curling of the chip so as to prevent the finished surface of a workpiece from damaging and reduce idle time due to dealing with the jammed chip. The apparatus has a guide member mounted on or integral with a cutting tool. The guide path is provided in the guide member for passing the chip, and the guide path has an inlet in the vicinity of the cutting edge of the cutting tool and an outlet remote from the cutting edge. The guide path is inclined, at its inlet portion, with an angle substantially equal to the flowing direction of the chip. The shape and dimension of the guide path may be varied in accordance with the nature of the chip. A detector may be used for detecting the smooth operation of the continuous chip or for detecting the jamming of the chip around the inlet so as to stop the operation.
    Type: Grant
    Filed: June 8, 1979
    Date of Patent: June 9, 1981
    Assignee: Nippon Kogaku K.K.
    Inventors: Keiichi Kimura, Eimei Negishi