US 12,240,741 B2
Cable winch and hoisting device having such a cable winch
Norbert Hausladen, Biberach an der Riss (DE)
Assigned to Liebherr-Components Biberach GmbH, Biberach an der Riss (DE)
Filed by Liebherr-Components Biberach GmbH, Biberach an der Riss (DE)
Filed on Feb. 2, 2022, as Appl. No. 17/649,706.
Application 17/649,706 is a continuation of application No. PCT/EP2020/071650, filed on Jul. 31, 2020.
Claims priority of application No. 10 2019 120 970.6 (DE), filed on Aug. 2, 2019; and application No. 10 2019 126 699.8 (DE), filed on Oct. 2, 2019.
Prior Publication US 2022/0185638 A1, Jun. 16, 2022
Int. Cl. B66D 1/48 (2006.01); B65H 54/28 (2006.01); B66C 13/46 (2006.01); B66D 1/38 (2006.01)
CPC B66D 1/485 (2013.01) [B65H 54/2875 (2013.01); B66C 13/46 (2013.01); B66D 1/38 (2013.01); B65H 2701/35 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A cable winch comprising a hoisting gear winch of a hoisting device, wherein the hoisting gear winch is for winding and unwinding a cable, the hoisting gear winch comprising:
a cable drum;
an entry guide for guiding the cable to be wound onto and unwound from the cable drum;
an actuating drive for adjusting the entry guide relative to the cable drum;
a controller for controlling the actuating drive; and
an image evaluator configured to determine a deformation of flanged wheels, which together with a drum shell delimit a winding region of the cable drum and project beyond the drum shell, from an image of the cable drum,
wherein the controller is configured to change an adjustment of the entry guide and/or to emit a warning signal and/or to stop winch operation when a predetermined flanged wheel deformation is exceeded.