×

Elevator drive machine having rotating traction sheave between rotors of multiple motors along the axis of rotation

  • US 6,234,275 B1
  • Filed: 07/23/1999
  • Issued: 05/22/2001
  • Est. Priority Date: 01/23/1997
  • Status: Expired due to Term
First Claim
Patent Images

1. An elevator drive machine, comprising:

  • a traction sheave; and

    an electric motor for driving the traction sheave, the electric motor having at least a first and a second rotor block and a first and second stator block, the rotor blocks being attached to opposite ends of the traction sheave coaxially with a center axis of revolution of the traction sheave, and a stator block being provided for each rotor block, with an air gap between each stator block and rotor block, such that substantially all the torque generated by the first rotor block and the first stator block and substantially all the torque generated by the second rotor block and the second stator block is transmitted directly to said traction sheave.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×