Patent ID: 11964850
Assignee: LIEBHERR-WERK BIBERACH GMBH
Field: Handling (Mechanical engineering)
Classification: CPC B | IPC B

Claim 19:
20. A fast-erecting crane comprising:
a telescopable and/or luffable tower with a height-adjustable mounted control and/or personnel stand configured to be lifted and lowered by two lifting elements, wherein the two lifting elements are articulated to a balancing rocker that is luffably mounted on a rocker bearing head connected to the control and/or personnel stand about a horizontal pivot axis; and
a monitoring and/or safety device for monitoring the control and/or personnel stand, wherein the pivot axis is configured as a measurement axis for detecting the load state of the luffable bearing of the balancing rocker and for providing a load signal to the monitoring and/or safety device,
wherein the measurement axis is configured to detect bending moments acting on the measurement axis.