Hoisting device for loads

Details Hoisting device for loads Hoisting device for loads

B - Operations, Transporting

66

C

B66C 13/06 (2006.01) B25J 17/02 (2006.01)

Patent

CA 2137466

In the hoisting device with a horizontally movable structural component (e.g. a crab 1; 1'; 1"), in order to prevent swinging and increase the transfer capacity, the means for grasping the load (e.g. a spreader 4) is suspended via six or more hydraulic ad- justing cylinders (11 to 16;41, ...; 51, ...), the length of which is individually adjustable, which are supported via a movable coup ling (21 to 26 and 31 to 36; 59, 60) on the crab (1; 1'; 1") and on the spreader (4). Here, at least four adjusting cylinders (11 to 16; 41 to 44; 55 to 58) are fitted obliquely. The couplings (21 to 26 and 31 to 36) of the adjusting cylinders are arranged on both the crab (I) and the spreader (4) preferably on a mathematical circle (20 or 30). With a purely vertically acting load it can be of ad- vantage to have eight adjusting cylinders (51 to 54; 55 to 58) of which four (51 to 54) are vertical and lie at the angles of a mathe- matical rectangle or square in plan view. In the four mathematical planes between each two adjusting cylinders (51/52, 52/53,...) is arranged an oblique cylinder (55, 56,...), the inclination of the oblique adjusting cylinders being oppositely directed in each two of the parallel mathematical planes.

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