CRANE Russian patent published in 2017 - IPC B66C23/94 

Abstract RU 2631363 C2

FIELD: transportation.

SUBSTANCE: tower crane comprises a boom rotating around the vertical rotation axis of the turning part, and a brake acting in the non-operating state of the crane, which limits and slows the boom rotation of the crane in the non-operating state. The brake acting in the non-operating state of the crane is made with the possibility to operate in the rotational dependence on speed in such a way that at increasing the crane rotation speed the applied braking torque is greater than at a lower crane rotation speed.

EFFECT: improvement of the crane design.

20 cl, 11 dwg

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RU 2 631 363 C2

Authors

Majer Joakhim

Dates

2017-09-21Published

2013-09-23Filed