Jib boom rotating tower crane

Details Jib boom rotating tower crane Jib boom rotating tower crane

B - Operations, Transporting

66

C

B66C 23/26 (2006.01)

Patent

CA 2679099

The invention relates to a jib boom rotating tower crane, wherein the counterweight/pinnacle system is divided into three trellises, a rotating frame trellis, a counterweight trellis, and a pinnacle trellis, wherein the counterweight trellis has a common side with each of the pinnacle trellis and the rotating frame trellis. The pinnacle trellis preferably comprises a beam to which a pulley block with a reeved luff cable can be attached.

L'invention concerne une grue à tour à flèche relevable caractérisée en ce que le système flèche de tour/contre-flèche est divisé en trois treillis : un treillis de cadre tournant, un treillis de contre-flèche et un treillis de flèche de tour, le treillis de contre-flèche présentant un côté commun avec le treillis de flèche de tour et le treillis de cadre tournant. Le treillis de flèche de tour comporte de préférence un montant auquel un bloc poulie peut être relié, lorsque le câble de relevage est mouflé.

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