Patent ID: 6345696
Filing Date: 2002-02-12
Classification: B66B

Abstract:
An elevator speed governor comprising:motion converting means for converting a traveling speed of a traveling section of an elevator into a rotational speed, the motion converting means being mounted on the traveling section of the elevator; overspeed sensing means for sensing a rotational speed from the motion connecting means not less than a threshold speed; and overspeed detecting means for detecting an overspeed of the traveling section for stopping the traveling section, wherein the motion converting means includes permanent magnets supported by a rotating shaft of the motion converting means so that the magnets are rotated with the rotating shaft, and an eddy current is generated according to traveling speed of the elevator in an electric induction conductor arranged in a traveling direction of the traveling section of the elevator, so that a rotational torque is generated in the rotating shaft by interaction between the eddy current and magnetic flux produced by the permanent magnets.