Patents Assigned to Chuo Electric Mfg. Co., Ltd.
  • Patent number: 5239850
    Abstract: A method for bending materials in a continuous manner with a bending machine having a fixed supply head and a movable bending head includes feeding material continuously along a material feeding direction through channels of the supply head and bending head, sliding the bending head in a cross plane perpendicular to the material feeding direction to adjust the bending head channel, and driving and swinging the bending head around a swinging axis that lies perpendicular to the material feeding direction to adjust the bending head channel. The feed amount of the material and a sliding amount and swinging amount of the bending head are detected and controlled. The bending head channel is thus adjusted and the material being continuously fed therethrough is bent. A method for bending hollow elongate material with a bending machine also includes feeding a mandrel along the feeding direction into a hollow in the elongate material.
    Type: Grant
    Filed: December 17, 1991
    Date of Patent: August 31, 1993
    Assignee: Chuo Electric Mfg. Co., Ltd.
    Inventor: Naoto Shimokata
  • Patent number: 5119533
    Abstract: A bending apparatus has a fixed supply head, a movable bending head, a material feeding device, a sliding device, and a swinging device for sliding and swinging the movable bending head. The sliding device and the swinging device slide and swing the movable bending head against the fixed supply head and arrange the movable bending head in an accurate position and angle. The material-feeding device continuously feeds a material through channels of both the fixed supply head and the movable bending head. Because of the swinging ability of the bending apparatus, the material is bent between the heads with accuracy.
    Type: Grant
    Filed: January 11, 1991
    Date of Patent: June 9, 1992
    Assignee: Chuo Electric Mfg. Co., Ltd.
    Inventor: Naoto Shimokata
  • Patent number: 5031291
    Abstract: A bending apparatus has a fixed supply head, a movable bending head, a material feeding device, a sliding device, and a swinging device for sliding and swinging the movable bending head. The sliding device and the swinging device slide and swing the movable bending head against the fixed supply head and arrange the movable bending head in an accurate position and angle. The material-feeding device continuously feeds a material through channels of both the fixed supply head and the movable bending head. Because of the swinging ability of the bending apparatus, the material is bent between the heads with accuracy.
    Type: Grant
    Filed: June 8, 1989
    Date of Patent: July 16, 1991
    Assignee: Chuo Electric Mfg. Co., Ltd.
    Inventor: Naoto Shimokata