Patent ID: 8783421

Claim:
A brake device for an elevator system, comprising: a housing enclosing a motor; a shaft of the motor extending in an extension direction along a rotation axis from the housing; a traction sheave concentrically disposed on the shaft, the traction sheave including an integrally formed extension, the extension extending from an end of the traction sheave opposite to the housing; a brake frame surrounding the traction sheave and securely fixed to the housing; a brake rotor being a separate component from the traction sheave and from the extension and concentrically disposed on the extension, the brake frame disposed between the housing and brake rotor; a brake disk adapted to interact with the brake rotor that is between the brake disk and the brake frame; and a first operational configuration and a second operational configuration, the first operational configuration being different from the second operational configuration, wherein: in the first operational configuration, the brake rotor has a first rotor position along the rotation axis in the extension direction and the brake disk has a first disk position along the rotation axis in the extension direction, in the second operational configuration, the brake rotor has a second rotor position along the rotation axis in the extension direction and the brake disk has a second disk position along the rotation axis in the extension direction, and wherein the first rotor position is different from the second rotor position with respect to the brake frame, wherein the first disk position is different from the second disk position with respect to the brake frame, wherein, in the first operational configuration, the brake disk and the brake rotor are in direct contact, wherein, in the second operational configuration, the brake disk and the brake rotor are not in direct contact, wherein both the extension and the brake rotor are toothed, wherein the shaft is disposed through the housing into the brake frame, and having one shaft end terminating within the brake frame, and wherein the extension extends from the one shaft end through a portion of the brake frame opposite to the housing.