Provided is an apparatus capable of preventing an auxiliary cylinder (31) attached to a derricking member (15) of a working machine from undesirable rotational movement. The apparatus includes an auxiliary cylinder (31) capable of making expansion and contraction motions, an auxiliary-cylinder angle detector, a fixing device, and an expansion controller. The fixing device fixes the auxiliary cylinder (31) to the derricking member (15) when the expansion length of the auxiliary cylinder (31) is in the fixing allowing range, and releases the fixing of the auxiliary cylinder (31) at other times. The expansion controller judges the posture of the auxiliary cylinder (31) based on the auxiliary-cylinder angle detected by the auxiliary-cylinder angle detector, allows the expansion and contraction motions when the auxiliary cylinder (31) is in the vertical posture, and prohibits the auxiliary expansion and contraction motions when the auxiliary cylinder (31) is in a posture other than the vertical posture and the auxiliary cylinder (31) is fixed to the derricking member (15).
AUXILIARY CYLINDER APPARATUS, WORKING MACHINE INCLUDING SAME, AND USE OF AUXILIARY CYLINDER
HILFSZYLINDERVORRICHTUNG, ARBEITSMASCHINE DAMIT UND VERWENDUNG EINES HILFSZYLINDERS
APPAREIL DE CYLINDRE AUXILIAIRE, MACHINE DE TRAVAIL LE COMPRENANT ET UTILISATION DU CYLINDRE AUXILIAIRE
2024-01-03
Patent
Elektronische Ressource
Englisch
IPC: | B66C Krane , CRANES |
Auxiliary cylinder apparatus, working machine including same, and use of auxiliary cylinder
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