Patent ID: 7934585
Filing Date: 2011-05-03
Classification: F03D,F05B,Y02E,Y10T

Abstract:
1. Method of servicing outer components of a wind turbine with a work platform, said method comprising: positioning the work platform at a wind turbine tower of said wind turbine; connecting the work platform to an upper part of the wind turbine with at least one cable; raising the work platform with the cable and a cable winder to a position of use; holding the work platform to a side of the wind turbine tower by directly gripping the tower with a holder on the work platform, said holder comprising a gripper having at least one holding arm including a base arm section, an inner arm section, and an outer arm section; and moving the work platform horizontally by extracting or retracting a horizontal forcer of the work platform; said horizontal forcer positioned between said gripper and said work platform and connecting said gripper with said work platform, said forcer comprising a number of horizontal forcing arms telescopically integrated into each other; wherein said inner arm section and said outer arm section are pivotally connected and controlled by a holding arm actuator in at least one direction.