Frameless elevator counterweight

Abstract

An elevator counterweight (24) includes a frameless stack of a plurality of weights (40) that are connected to maintain a vertical and horizontal alignment of the weights (40). A plurality of guides (58) are directly supported on at least some of the weights (40). The plurality of guides (58) are configured to guide movement of the counterweight (24) along elevator guide rails.

Description

technical field [0001] Elevator systems are useful for transporting passengers and items between different levels in a building. Various configurations of elevator systems have been used over the years. One type of elevator system configuration relies on traction between drive or traction sheaves and load-bearing members, such as round steel ropes or flat belts, which support the elevator car and counterweight. In such elevator systems, movement of the traction sheave results in movement of the load-carrying part and a corresponding movement of the elevator car. Background technique [0002] For known reasons, the pair resets in the elevator system. One problem associated with many counterweights is that they tend to be expensive and space inefficient. Typical counterweights require separate means for the guides to follow along the rails, stuffing weight retention and alignment, connection to the lanyard assembly, and significant structural means to hold all the weight. ...

AI Technical Summary

Problems solved by technology

Also, for larger sized counterweights, more expensive materials of construction are often used

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