Presses – Methods
Reexamination Certificate
2007-03-26
2011-11-01
Nguyen, Jimmy T (Department: 3725)
Presses
Methods
C100S046000, C100S048000, C072S010200
Reexamination Certificate
active
08047131
ABSTRACT:
A control apparatus of a press machine in which a motor performance torque is fluctuated in accordance with a rotational angle of the rotating body in the case of rotating the motor at a fixed instruction speed. The control apparatus includes an angle detecting apparatus detecting a rotational angle of the rotating body, a torque determining apparatus determining a necessary motor torque in correspondence to a characteristic of the press machine on the basis of a value of the rotational angle input from the angle detecting apparatus, and a speed adjusting apparatus increasing the rotational instruction speed of the motor to a value more than the fixed instruction speed, at the rotational angle of the rotating body in which the necessary motor torque becomes smaller than a predetermined motor torque reference value.
REFERENCES:
patent: 6474227 (2002-11-01), Narita
patent: 6647870 (2003-11-01), Kohno
patent: 2003/0116037 (2003-06-01), Tanaka et al.
patent: 1438113 (2003-08-01), None
patent: 06-031499 (1994-02-01), None
patent: 6-31499 (1994-02-01), None
patent: 6031499 (1994-02-01), None
patent: 08-103900 (1996-04-01), None
patent: 2003-181698 (2003-07-01), None
patent: 2003-181698 (2003-07-01), None
patent: 2003-205395 (2003-07-01), None
patent: 2004-344946 (2004-12-01), None
Office Action issued in corresponding Russian Application No. 2008143987 dated Jun. 30, 2010.
International Search Report issued in corresponding application No. PCT/JP2007/056171, completed Jun. 5, 2007 and mailed Jun. 26, 2007.
Office Action issued Korean Patent Application No. 10-2008-7023748, issued Oct. 22, 2010.
Office Action issued in Chinese Patent Application No. 200780012212.x, dated Feb. 23, 2011.
Okajima Kazumichi
Onishi Dan
Griffin & Szipl, P.C.
IHI Corporation
Nguyen Jimmy T
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