Patents by Inventor Ito Takao

Ito Takao has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10286442
    Abstract: A press system for knocking out a work from a lower die attached to a press machine has a cam 22 mounted on a bed of the press machine; a servo motor 21 which drives the cam to be rotated with the same cycle time as that of a drive mechanism of a slide of the press machine; a knockout pin 23 moved with reciprocal linear motion by the rotation of the cam; a detector 25 configured to detect a present angle information 24 of the cam, a memory storing a target angle information of the cam, and a controller 28 configured to control the servo motor in accordance with the present angle information and the target angle information. The controller is further configured to change a basic motion of the knockout pin according to contour of the cam to a target motion obtained from the target angle information.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: May 14, 2019
    Assignee: AIDA ENGINEERING CO., LTD.
    Inventors: Ito Takao, Nishimura Tadashi
  • Publication number: 20160221063
    Abstract: A press system for knocking out a work from a lower die attached to a press machine has a cam 22 mounted on a bed of the press machine; a servo motor 21 which drives the cam to be rotated with the same cycle time as that of a drive mechanism of a slide of the press machine; a knockout pin 23 moved with reciprocal linear motion by the rotation of the cam; a detector 25 configured to detect a present angle information 24 of the cam, a memory storing a target angle information of the cam, and a controller 28 configured to control the servo motor in accordance with the present angle information and the target angle information. The controller is further configured to change a basic motion of the knockout pin according to contour of the cam to a target motion obtained from the target angle information.
    Type: Application
    Filed: February 1, 2016
    Publication date: August 4, 2016
    Inventors: Ito TAKAO, Nishimura TADASHI
  • Patent number: 6871587
    Abstract: A simple structure is provided for the frame by changing the orientation of the crank mechanism so as to orient the crankshaft longitudinally. More specifically, the structure includes two ring-shaped main plates are provided in the front and back and are connected by means of connector plates. An upwardly and downwardly movable slide for the machine press is provided in a space demarcated by four column portions of the ring-shaped main plates and a bolster is provided atop a bed of the ring-shaped main plates. A crankshaft oriented longitudinally is provided at the crown portion of the ring-shaped main plates, and the slide is moved upward and downward by a drive mechanism that includes the crankshaft.
    Type: Grant
    Filed: September 25, 2002
    Date of Patent: March 29, 2005
    Assignee: Aida Engineering Co., Ltd.
    Inventors: Hisanobu Kanamaru, Ito Takao, Hiromichi Fujimori
  • Patent number: 6662715
    Abstract: A slider link press includes an oscillation link operating about a fulcrum shaft and an eccentric crank pin. A connecting link connects the oscillation link to a slide. The oscillating link and fulcrum shaft act to increase press torque, reduce downward press speed, and increases upward press speed thereby maintaining cycle time. The eccentric crank pin operates the oscillation link, aids in torque increase, and provides reciprocating movement to the slide. The slide includes pivotable slide gibs that engage reciprocal fixed gibs to maintain parallel surface contact and absorb and eliminate eccentric loads on the slide and the press. Stays and spacers align sides of the press and eliminate flexing under load while absorbing and distributing deformation pressure.
    Type: Grant
    Filed: July 12, 2001
    Date of Patent: December 16, 2003
    Assignee: Aida Engineering Co., Ltd.
    Inventors: Hisanobu Kanamaru, Ito Takao, Hiromichi Fujimori
  • Publication number: 20030074948
    Abstract: A simple structure is provided for the frame by changing the orientation of the crank mechanism so as to orient the crankshaft longitudinally. More specifically, the structure includes two ring-shaped main plates are provided in the front and back and are connected by means of connector plates. An upwardly and downwardly movable slide for the machine press is provided in a space demarcated by four column portions of the ring-shaped main plates and a bolster is provided atop a bed of the ring-shaped main plates. A crankshaft oriented longitudinally is provided at the crown portion of the ring-shaped main plates, and the slide is moved upward and downward by a drive mechanism that includes the crankshaft.
    Type: Application
    Filed: September 25, 2002
    Publication date: April 24, 2003
    Applicant: AIDA ENGINEERING CO., LTD.
    Inventors: Hisanobu Kanamaru, Ito Takao, Hiromichi Fujimori
  • Publication number: 20020020308
    Abstract: A slider link press includes an oscillation link operating about a fulcrum shaft and an eccentric crank pin. A connecting link connects the oscillation link to a slide. The oscillating link and fulcrum shaft act to increase press torque, reduce downward press speed, and increases upward press speed thereby maintaining cycle time. The eccentric crank pin operates the oscillation link, aids in torque increase, and provides reciprocating movement to the slide. The slide includes pivotable slide gibs that engage reciprocal fixed gibs to maintain parallel surface contact and absorb and eliminate eccentric loads on the slide and the press. Stays and spacers align sides of the press and eliminate flexing under load while absorbing and distributing deformation pressure.
    Type: Application
    Filed: July 12, 2001
    Publication date: February 21, 2002
    Inventors: Hisanobu Kanamaru, Ito Takao, Hiromichi Fujimori