Title:
CUTTING MACHINE AND METHOD FOR CONTROLLING HEAD MOVING DEVICE OF SAME
Document Type and Number:
WIPO Patent Application WO/2007/111053
Kind Code:
A1
Abstract:
A cutting machine secures safety of a worker against movement of a head without lowering production efficiency. When moving a cutting head (24) without cutting a cut material on a table (12), a moving truck (18) and the cutting head (24) are moved at a higher speed as compared with a case where the cutting head (24) is moved for cutting a cut material. If a worker exists on the table (12) and intercepts any one of light beams (30, 44) located in front and rear of a transom (20) when the moving truck (18) and the cutting head (24) are moving at a high speed, the moving speed is decelerated to a safe low speed but cutting work of the cut material is not interrupted. Subsequently, when the worker approaches the transom (20) furthermore and touches a wire (38) or a bar (50) in the vicinity of the transom (20), movement of the moving truck (18) and the cutting head (24) is stopped forcibly to interrupt cutting work.
Inventors:
YAMAGUCHI YOSHIHIRO (JP)
IRIYAMA TAKAHIRO (JP)
OHNISHI SATOSHI (JP)
IRIYAMA TAKAHIRO (JP)
OHNISHI SATOSHI (JP)
Application Number:
PCT/JP2007/052601
Publication Date:
October 04, 2007
Filing Date:
February 14, 2007
Export Citation:
Assignee:
KOMATSU IND CORP (JP)
YAMAGUCHI YOSHIHIRO (JP)
IRIYAMA TAKAHIRO (JP)
OHNISHI SATOSHI (JP)
YAMAGUCHI YOSHIHIRO (JP)
IRIYAMA TAKAHIRO (JP)
OHNISHI SATOSHI (JP)
International Classes:
B23K10/00; B23K7/00; B23K26/00; B23K26/38; G05B19/18; G05B19/4155
Domestic Patent References:
| WO2005113183A1 | 2005-12-01 |
Foreign References:
| JPH0633210U | 1994-04-28 | |||
| JPH08288356A | 1996-11-01 |
Attorney, Agent or Firm:
Willfort International (5F3-2, Kajicho 2-chome,,Chiyoda-ku, Tokyo44, JP)
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