(19)
(11) EP 1 334 945 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
02.01.2004 Bulletin 2004/01

(43) Date of publication A2:
13.08.2003 Bulletin 2003/33

(21) Application number: 03002160.4

(22) Date of filing: 03.02.2003
(51) International Patent Classification (IPC)7: B66C 13/08
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR
Designated Extension States:
AL LT LV MK RO

(30) Priority: 08.02.2002 JP 2002032887

(71) Applicant: Mitsubishi Heavy Industries, Ltd.
Tokyo (JP)

(72) Inventors:
  • Yoshioka, Nobuo, Mitsubishi Heavy Ind., Ltd.
    Nishi-ku, Hiroshima-shi, Hiroshima-ken (JP)
  • Monzen, Tadaaki, Mitsubishi Heavy Ind., Ltd.
    Nishi-ku, Hiroshima-shi, Hiroshima-ken (JP)
  • Nishioka, Masaki, Mitsubishi Heavy Ind., Ltd.
    Nishi-ku, Hiroshima-shi, Hiroshima-ken (JP)
  • Toyohara, Takashi, Mitsubishi Heavy Ind., Ltd.
    Nishi-ku, Hiroshima-shi, Hiroshima-ken (JP)

(74) Representative: HOFFMANN - EITLE 
Patent- und Rechtsanwälte Arabellastrasse 4
81925 München
81925 München (DE)

   


(54) Device and method for controlling rotation of container


(57) A device for controlling the rotation of a container used for a crane which includes a jib (2) for hanging a container (19) via a lifting attachment (15) and a rope (3), the device rotating the container by rotating the rope using a rotation motor (16). The device includes a container rotation angle obtaining unit (22,23); a lifting attachment rotation angle obtaining unit; a control computing unit (50) which computes a motor control command value based on an equation relating to a deviation between a target rotation angle and the rotation angle of the container, an angle of the lifting attachment member, and the motor control command value; a rotation motor control unit which drives the rotation motor; and a feedback control unit which performs feedback control on the rotation angle of the container and the angle of the lifting attachment member so that the rotation angle of the container matches the target rotation angle of the container.






Search report