Patent ID: 7353913
Filing Date: 2008-04-08
Classification: B66B,H02K,Y10S

Abstract:
1. An elevator-hoisting machine comprising: a sheave; a fixed main shaft that supports rotation of the sheave through a bearing; a rotation support frame comprising a rotor mounting portion formed integrally with the sheave or fixed to the sheave; a fixed frame body comprising a hollow extended portion, a cylindrical portion and a stator mounting portion, the extended portion having a disc-like shape and being extended outwardly in a radial direction of the sheave, the cylindrical portion being bent approximately in a vertical direction from the extended portion and being extended toward the fixed main shaft, the stator mounting portion being provided at the cylindrical portion to oppose the rotor mounting portion; and a motor including a rotor mounted to the rotor mounting portion, and a stator mounted to the stator mounting portion, wherein a portion of the rotation support frame, which is located between the rotor mounting portion of the rotation support frame and the sheave, is extended outwardly in a radial direction of the sheave and has a hollow-disc-like shape, and a diameter of the rotor mounting portion in the radial direction is substantially larger than a diameter of the sheave in the radial direction.