Title:
METHOD FOR POSITIONING LANDING OF HOISTED CARGO, AND ITS DEVICE
Document Type and Number:
Japanese Patent JP3249409
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a cargo landing positioning method capable of performing the landing with excellent accuracy by correcting the positional deviation based on the inclination, etc., of a hoisted cargo, and its device.
SOLUTION: When a container (n) to be hoisted from a trolley through a spreader 5 is landed with the axis in the longitudinal direction of the container (n) aligned with the target landing line (a), a first target 6a and a second target 6b are installed on an upper surface of the spreader 5 with the prescribed intervals, the first landing operation of the cargo is performed to respectively measure the deviations DL1, DR1 between the target line (a) and the first and second targets 6a, 6b, and the measured value is compared with the allowable value D0. When D0<DL1, DR1, the second landing operation is performed under the same condition as in the first one, the deviations DL2, DR2 are respectively measured, the correction quantity ΔD is obtained in terms of the formula ΔD=(DL1+DL2+DR1+DR2)/4 using these measured values, and the trolley position is corrected by the correction quantity ΔD.
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Inventors:
Noriaki Miyata
Application Number:
JP31354296A
Publication Date:
January 21, 2002
Filing Date:
November 25, 1996
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES,LTD.
International Classes:
B66C13/00; B66C13/08; B66C13/22; (IPC1-7): B66C13/08; B66C13/22
Domestic Patent References:
| JP5262492A | ||||
| JP6166489A | ||||
| JP58144091A |
Attorney, Agent or Firm:
Nao Okuyama (2 outside)
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