Title:
ROTATING PARKING BRAKE CONTROL DEVICE FOR CONSTRUCTION MACHINERY
Document Type and Number:
WIPO Patent Application WO/2011/142447
Kind Code:
A1
Abstract:
The disclosed rotating parking brake control device obviates the need for an operator to operate an emergency-stop switch. A hybrid controller, to which a brake is connected, drives/controls an upper rotating body by outputting a drive/control signal to a rotating electric motor. The hybrid controller also controls the brake by generating a brake release command signal and outputting a brake release command signal to the brake. A brake release command signal is also generated in a pump controller, and said brake release command signal is transmitted to the hybrid controller via an inter-controller signal line. A brake release command signal is outputted to the brake only when both a brake release command signal is generated in the hybrid controller and a brake release command signal is transmitted from the pump controller via the inter-controller signal line.
Inventors:
TAKE, Hiroaki (3-25-1 Shinomiya, Hiratsuka-sh, Kanagawa 55, 〒2548555, JP)
武 宏昭 (〒55 神奈川県平塚市四之宮３－２５－１ 株式会社小松製作所 開発本部内 Kanagawa, 〒2548555, JP)
MORINAGA, Jun (3-25-1 Shinomiya, Hiratsuka-sh, Kanagawa 55, 〒2548555, JP)
武 宏昭 (〒55 神奈川県平塚市四之宮３－２５－１ 株式会社小松製作所 開発本部内 Kanagawa, 〒2548555, JP)
MORINAGA, Jun (3-25-1 Shinomiya, Hiratsuka-sh, Kanagawa 55, 〒2548555, JP)
Application Number:
JP2011/061016
Publication Date:
November 17, 2011
Filing Date:
May 13, 2011
Export Citation:
Assignee:
KOMATSU LTD. (2-3-6, Akasaka Minato-k, Tokyo 14, 〒1078414, JP)
株式会社小松製作所 (〒14 東京都港区赤坂２－３－６ Tokyo, 〒1078414, JP)
TAKE, Hiroaki (3-25-1 Shinomiya, Hiratsuka-sh, Kanagawa 55, 〒2548555, JP)
武 宏昭 (〒55 神奈川県平塚市四之宮３－２５－１ 株式会社小松製作所 開発本部内 Kanagawa, 〒2548555, JP)
株式会社小松製作所 (〒14 東京都港区赤坂２－３－６ Tokyo, 〒1078414, JP)
TAKE, Hiroaki (3-25-1 Shinomiya, Hiratsuka-sh, Kanagawa 55, 〒2548555, JP)
武 宏昭 (〒55 神奈川県平塚市四之宮３－２５－１ 株式会社小松製作所 開発本部内 Kanagawa, 〒2548555, JP)
International Classes:
E02F9/20; B60R16/023; F15B20/00
Attorney, Agent or Firm:
KIMURA, Takahisa et al. (6F. Sendai Building, 8-11, Minato 1-chome, Chuo-k, Tokyo 43, 〒1040043, JP)
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Claims: