The disclosure relates to a crane comprising a carrier structure, a boom, which is connected to the carrier structure so as to be pivotable about a horizontal tilt axis, a guy frame, which is connected to the carrier structure and via which the boom is guyed by means of length-variable guy cables, and a fallback protection device, which is arranged on the guy frame and is configured to block or brake tipping of the boom towards the guy frame in a critical state of the crane, in particular in the event of a load shift, wherein the fallback protection device comprises at least one stabilising strut, with which the boom comes into contact when it tilts back by a defined boom angle. According to the disclosure, the stabilising strut is configured as a rigid element, which follows the boom above the defined boom angle.
CRANE HAVING ACTIVE FALLBACK PROTECTION
26.06.2025
Patent
Elektronische Ressource
Englisch
IPC: | B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS |
Portal crane device having secondary emergency protection function for crane cars
Europäisches Patentamt | 2020
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