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JPS56103301A - Method for centering of lifting load of crane or the like - Google Patents

Method for centering of lifting load of crane or the like

Info

Publication number
JPS56103301A
JPS56103301A JP542980A JP542980A JPS56103301A JP S56103301 A JPS56103301 A JP S56103301A JP 542980 A JP542980 A JP 542980A JP 542980 A JP542980 A JP 542980A JP S56103301 A JPS56103301 A JP S56103301A
Authority
JP
Japan
Prior art keywords
center
load
tongue
lifting
pair
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP542980A
Other languages
Japanese (ja)
Inventor
Hisami Tanimoto
Kenzo Oosugi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Steel Corp
Original Assignee
Kawasaki Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP542980A priority Critical patent/JPS56103301A/en
Publication of JPS56103301A publication Critical patent/JPS56103301A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Control And Safety Of Cranes (AREA)

Abstract

PURPOSE:To facilitate centering operation by detecting both right and left side ends of a lifting load by means of a pair of detecting rays from the center of a hoisting means. CONSTITUTION:Projectors 8a, 8b which project a pair of detecting rays 3a, 3b symmetrically on the right and left from the center X-X' of a torque 1a are pivotally fitted by means of a pin 11 to a bracket 10 fixed to a lifting means mast 4 in a manner as to position perpendicular to the opening-closing operation directions of the tongue 1a, and a screw rod 19 driven by a forward-backward revolvable geared motor 17 is incorporated thereto. A pair of the detecting rays 3a, 3b, which are symmetrical on the right and left with respect to the center X-X' of the tongue 1a are projected from the projectors 8a, 8b toward both right and left side ends 2a, 2b when viewed in the long side direction of the load 2 to be lifted, by the visual observation of the operator in an operation room 7 and the screw rod 19 is driven in a manner that the irradiated positions P1, P2 come to both side ends 2a, 2b. Then, the center X-X' of the tongue 1a aligns to the center Y-Y' in the long side direction of the load 2, and the lifting of the center of the load 2 is made possible.
JP542980A 1980-01-21 1980-01-21 Method for centering of lifting load of crane or the like Pending JPS56103301A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP542980A JPS56103301A (en) 1980-01-21 1980-01-21 Method for centering of lifting load of crane or the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP542980A JPS56103301A (en) 1980-01-21 1980-01-21 Method for centering of lifting load of crane or the like

Publications (1)

Publication Number Publication Date
JPS56103301A true JPS56103301A (en) 1981-08-18

Family

ID=11610932

Family Applications (1)

Application Number Title Priority Date Filing Date
JP542980A Pending JPS56103301A (en) 1980-01-21 1980-01-21 Method for centering of lifting load of crane or the like

Country Status (1)

Country Link
JP (1) JPS56103301A (en)

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