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Patent Searching and Data


Title:
SWING CONTROL DEVICE AND CONSTRUCTION MACHINERY
Document Type and Number:
WIPO Patent Application WO/2006/054581
Kind Code:
A1
Abstract:
In a swing control device mounted on a motorized swing shovel (construction machinery), when a quick operation by a swing lever causes the abrupt rise or fall of a lever signal, a gradient corresponding to rise time Ta1 or fall time Tb1 is imparted to torque output produced accordingly or to acceleration rise or fall to make the signal somewhat gentle. Therefore, impact-causing acceleration/deceleration of a swing body can be controlled. Specifically, such a gradient at accelerating is imparted that sets rise time Ta1 to at least 0.15 sec and such a gradient at decelerating/stopping is imparted that sets fall time Tb1 to at least 0.1 sec.

Inventors:
Morinaga, Jun c/o KOMATSU LTD. (Development Division System Development Center, 3-25-1, Shinomiy, Hiratsuka-shi Kanagawa 55, 25485, JP)
Kawaguchi, Tadashi c/o KOMATSU LTD. (Development Division System Development Center, 3-25-1, Shinomiy, Hiratsuka-shi Kanagawa 55, 25485, JP)
Inoue, Hiroaki c/o KOMATSU LTD. (Development Division System Development Center, 3-25-1, Shinomiy, Hiratsuka-shi Kanagawa 55, 25485, JP)
Application Number:
PCT/JP2005/021012
Publication Date:
May 26, 2006
Filing Date:
November 16, 2005
Export Citation:
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Assignee:
KOMATSU LTD. (2-3-6, Akasaka Minato-k, Tokyo 14, 10784, JP)
Morinaga, Jun c/o KOMATSU LTD. (Development Division System Development Center, 3-25-1, Shinomiy, Hiratsuka-shi Kanagawa 55, 25485, JP)
Kawaguchi, Tadashi c/o KOMATSU LTD. (Development Division System Development Center, 3-25-1, Shinomiy, Hiratsuka-shi Kanagawa 55, 25485, JP)
Inoue, Hiroaki c/o KOMATSU LTD. (Development Division System Development Center, 3-25-1, Shinomiy, Hiratsuka-shi Kanagawa 55, 25485, JP)
International Classes:
E02F9/20; B66C23/84; B66F9/22; B66F9/24; E02F9/22; H02P7/00
Foreign References:
JP2004169466A2004-06-17
JP2001010783A2001-01-16
Other References:
See also references of EP 1813728A4
Attorney, Agent or Firm:
Kinoshita, Jitsuzo (3rd. floor, Ogikubo TM building 26-13, Ogikubo 5-chom, Suginami-ku Tokyo 51, 16700, JP)
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