Patent ID: 6578672
Filing Date: 2003-06-17
Classification: B66B

Abstract:
A driving apparatus for an elevator comprising:an electric motor device having a rotary plate extending radially, and a rotor fixed to an outer circumference of the rotary plate; an input shaft fixed to a central portion of the rotary plate, and adapted to be rotationally driven by said electric motor device; rotary elements, each contacting a circumferential surface of said input shaft such that the rotary elements rotate as said input shaft rotates; a supporting member adjacent to the rotary plate, and rotatably supporting said rotary elements; a cylindrical element having an inner circumferential surface contacting said rotary elements to rotate as said rotary elements rotate; a sheave provided on an outer circumferential side of said cylindrical element to rotate together with said cylindrical element, and supported on the supporting member; and a brake disc secured to said sheave in a radial direction outside of said sheave.