Traction sheave for elevator system

Traction sheave for elevator system

  • CN 105,209,366 A
  • Filed: 03/15/2013
  • Published: 12/30/2015
  • Est. Priority Date: 03/15/2013
  • Status: Active Application
First Claim
Patent Images

1. , for a traction sheave for elevator device, it comprises:

  • Outer rope sheave surface, it is apart from the distance of rope sheave axis along the change width of described traction sheave, and described outside face comprises;

    There is the Part I of the first friction coefficient;

    AndHave one or more Part II of the second friction coefficient, described second friction coefficient is less than described first friction coefficient.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×