Patent ID: 8978831
Filing Date: 2015-03-17
Classification: B66B,Y10T

Abstract:
1. An elevator, comprising: an elevator car for riding passengers of the elevator in an elevator shaft; a set of compensator cables attached to a bottom of the elevator car and engaged with a compensator drum, wherein the compensator cables crisscross each other generating lateral restoring forces from pretension and longitudinal stiffness of the compensator cables; a set of hoist cables attached to a top of the elevator car and engaged with a hoist drum to move the elevator car vertically in the elevator shaft, wherein the hoist cables crisscross each other to generate lateral restoring forces from pretension and longitudinal stiffness of the hoist cables; at least one counterweight connected to the hoist cables to maintain the pretension of the hoist cables, such that the set of compensator cables and the set of hoist cables restore forces and torques, and impart torsional, pitch and roll angular stiffness that minimize parasitic motions of the elevator car.