Patent ID: 7267241
Filing Date: 2007-09-11
Classification: B66C,B66D

Abstract:
1. A device for determining a load on a hoist, comprising: at least one drive motor; two twin rope drums arranged on a common axis and operated by the drive motor in synchronism, each of the rope drums having a pair of load-carrying ropes which can be spooled and unspooled in a same direction, wherein one of the load-carrying ropes of each pair of load-carrying ropes is guided in a common first load-guiding plane, extending substantially horizontal and tangent to the twin rope drums, and is routed about deflection rollers into the vertical, and wherein the other one of the load-carrying ropes of each pair of load-carrying ropes is guided vertically in a common second load-guiding plane which is tangent to the twin rope drums; a common hoist transmission disposed between the drive motor and the rope drums and arranged in a hoist transmission case; three bearing points for supporting the hoist transmission case for rotation about a pivot axis in parallel relationship to the common axis of the rope drums; and a measuring device for indirect determination of a load that is suspended from the load-carrying ropes based on said rotation.