Counterweight for elevator system

Counterweight for elevator system

  • CN 106,687,406 B
  • Filed: 08/27/2015
  • Issued: 09/07/2021
  • Est. Priority Date: 08/28/2014
  • Status: Active Grant
First Claim
Patent Images

1. A counterweight, comprising:

  • a counterweight frame including a crosshead; and

    a counterweight hitch operably coupled to the counterweight frame,the counterweight hitch includes a first pulley channel and a second pulley channel vertically coupled to each other and connected to the counterweight hitch by a first column and a second column,each of the first pulley channel and the second pulley channel including an internal cavity within which at least one individual pulley assembly is mounted,each individual sheave assembly includes a sheave having an axis of rotation extending between a first end and a second end of the sheave, andthe plurality of individual sheave assemblies are substantially identical and arranged at an angle relative to a center plane of the counterweight frame such that the axis of rotation is angled with respect to the counterweight frame, wherein the angle of the plurality of individual sheave assemblies is substantially identical and is determined based on an asymmetry of the counterweight within a hoistway.

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