Rotatable connection system for crane boom sections

Details Rotatable connection system for crane boom sections Rotatable connection system for crane boom sections

B - Operations, Transporting

66

C

B66C 23/70 (2006.01)

Patent

CA 2299888

A rotatable connection system for boom sections has been invented. With the invention, boom sections can be added to a boom being constructed in either a horizontal layout configuration or in a vertical configuration, such as adding a boom section onto a hanging luffing jib boom butt. With the invention, a horizontally orientated boom section can be added to a hanging boom. The coupler of the female connection is placed in the socket of the male connector and the retainer is put in place to keep the male and female connectors coupled. The assembly is then boomed up, the weight of the new section being carried by the coupler. The new section is free to rotate until it also is hanging nearly vertically. The section is then swung into an aligned position and lower connector pins can be inserted to secure the bottom connectors. This method of adding sections and booming up is continued until the desired luffing jib boom length is assembled.

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