A crane includes a luffing jib and a lifting cylinder having a cylinder body and a movable rod hinged on the jib to displace the jib in lifting motion and in lowering motion, and a locking device adapted to cooperate with the lifting cylinder to mechanically lock the rod in a deployed holding position and block the jib in a raised holding configuration. The crane further includes a spacer hinged on the jib and supporting a stop, the spacer pivotable between a release position in which the spacer is shifted, allowing the movable rod to be freely displaced, and a locking position in which the spacer is folded so that the stop is capable of abutting on a bearing surface in a ball jointed connection with the cylinder body, to fixedly hold the movable rod in the deployed holding position.
GRUE À FLÈCHE RELEVABLE AVEC DISPOSITIF DE VERROUILLAGE DE LA FLÈCHE EN CONFIGURATION RELEVÉE
LIFTING BOOM CRANE WITH BOOM LOCKING DEVICE IN RAISED CONFIGURATION
KRAN MIT HOCHKLAPPBAREM AUSLEGER MIT VERRIEGELUNGSVORRICHTUNG DES AUSLEGERS IN HOCHGEKLAPPTER KONFIGURATION
2020-04-29
Patent
Electronic Resource
French
IPC: | B66C Krane , CRANES |
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