A back-up load retention system comprising a retention line (6) connectable to a load (7), a counterweight unit (4) connected to the retention line (6), which counterweight unit (4) is adapted to maintain a tension force in the retention line (6), and a double-acting hydraulic cylinder (2a) connected to the counterweight unit (4), whereby the double-acting hydraulic cylinder (2a) is configured to brake and/or stop the load (7) in the case of a failure in a main lifting system of said load (7). Furthermore, the invention relates to a lifting system comprising a main lifting system and the back-up retention system.
Lifting arrangement
2018-03-14
Patent
Elektronische Ressource
Englisch