Invention Application
US20160039640A1 TRACTION SHEAVE FOR ELEVATOR SYSTEM 审中-公开
电梯系统的牵引力

  • Patent Title: TRACTION SHEAVE FOR ELEVATOR SYSTEM
  • Patent Title (中): 电梯系统的牵引力
  • Application No.: US14777073
    Application Date: 2013-03-15
  • Publication No.: US20160039640A1
    Publication Date: 2016-02-11
  • Inventor: Kyle B. Martin
  • Applicant: OTIS ELEVATOR COMPANY
  • International Application: PCT/US2013/032194 WO 20130315
  • Main IPC: B66B15/04
  • IPC: B66B15/04 B66B9/00
TRACTION SHEAVE FOR ELEVATOR SYSTEM
Abstract:
A traction sheave for an elevator system includes an outer sheave surface having a distance from a sheave axis that varies along a width of the traction sheave. The outer sheave surface includes a first portion having a first coefficient of friction and one or more second portions having a second coefficient of friction less than the first coefficient of friction. An elevator system includes an elevator car, a motor and a traction sheave operably connected to the motor to drive rotation of the traction sheave. The traction sheave includes an outer sheave surface having a distance from a sheave axis that varies along a width of the traction sheave. The outer surface includes a first portion having a first coefficient of friction and one or more second portions having a second coefficient of friction less than the first coefficient of friction.
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