Patent ID: 6227334
Filing Date: 2001-05-08
Classification: B66B,G01P,H02K

Abstract:
A method for checking and adjusting an elevator governor which comprises:an emergency stop switch for tuning off the power supply of an elevator hoist to brake it;first and second fixed conductive guide rails extending vertically the entire length of an elevator hoistway;an emergency brake attached to an elevator car assembly containing an elevator car and a balance weight balancing therewith, for grabbing said first fixed conductive guide rail to brake said elevator car assembly by friction;a magnet assembly mounted on said elevator car such that it is displaced by an eddy current induced based on the relative speed between said second fixed conductive guide rail and said magnet assembly disposed opposite thereto; andan emergency stop mechanism for actuating said emergency brake upon detecting that the displacement of said magnet assembly has reached displacement corresponding to a critical speed;wherein said governor is checked and adjusted with said emergency brake and said emergency stop mechanism held disconnected from each other.