Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
  • B66C13/00—Other constructional features or details
  • B66C13/52—Details of compartments for driving engines or motors or of operator's stands or cabins
  • B66C13/54—Operator's stands or cabins

Definitions

• This invention relates to an improved control cabin the operating cranes of the kind which comprises a mast and a swingable arm, said control cabin being movable about the mast in order to follow the arm at its swinging to different working positions.
• control cabin which is not only movable about the mast but also shiftable vertically up and down along the mast, is of great advantage for the crane operator because the operator may at any time move the cabin to the best operating position in order to get a good view of the loading area and of the object to be lifted so as to be in a position for performing the best work and thereby to prevent work injuries which otherwise would occur after some time.
• the present invention relates to a control device which in every position renders possible an optimal adjustment of the control cabin in relation to the arm.
• the features of this device are obvious from the claims.
• Fig. 1 shows in perspective a situation view of a construction crane
• Fig. 2 shows on an enlarged scale such a construction crane pro ⁇ vided with a device according to the invention.
• Fig. 1 shows a construction crane 1 comprising a vertical mast 2 and a horizontal arm 3.
• the crane is in a position for placing a modul 4 in its position in a building 5 under construction.
• the arm 3 is at its end situated opposite the loading end in a conventional way pro ⁇ vided with a concrete block 6 serving as a counter weight.
• a vertically adjustable carriage 7 is movable about the mast 2
• an electronic angle transmitter 9 an eletronic compass, which in every moment measures the angular position of the arm 3 in relation to north.
• a similar angular transmitter 10 which in the same way mea ⁇ sures the angular position of the control cabin 8.
• the two angular transmitters 9, 10 are connected to a computer unit 11.
• the computer unit 11 On the basis of the measure values obtained from the angular transmitters 9, 10, the computer unit 11 is capable of controlling the movements of the control cabin 8 about the mast 2 in relation to the swinging movements of the a 3.
• the operator in the control cabin 8 does no longer have any problems with the per ⁇ formance of the readjustment movements of the cabin.
• the latter will always assume the optimal position in relation to the arm 3 and the operator may concentrate on the handling of the lifting object and the contact with the building trade workers during the work.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Control And Safety Of Cranes (AREA)
• Jib Cranes (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=20376847

Family Applications (1)

Country Status (2)

Cited By (2)

Citations (1)

• 1989
  • 1989-09-12 SE SE8902982A patent/SE8902982L/ not_active Application Discontinuation
• 1990
  • 1990-09-07 WO PCT/SE1990/000569 patent/WO1991004220A1/en unknown

Patent Citations (1)

Non-Patent Citations (1)

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