Patents Assigned to Tri Engineering Company Limited
  • Patent number: 6477879
    Abstract: In a prior art roller type processing apparatus for processing a workpiece by roll pressing a roller, the roller is roll-pressed at the same location a number of times. Thus, longer processing time is required compared to processing using pressing dies. It is, accordingly, an object of the present invention to reduce the processing time by providing a roller type processing apparatus. Therefore, in the present invention, rollers 13, 14 are attached to a plurality of independently controllable robot arms 11, 12, respectively, and the rollers 13, 14 are successively roll-pressed along a portion to be processed We of a workpiece W in different rolling positions.
    Type: Grant
    Filed: May 5, 2000
    Date of Patent: November 12, 2002
    Assignee: Tri Engineering Company Limited
    Inventor: Masazumi Sawa