Unlock instant, AI-driven research and patent intelligence for your innovation.

Sway mitigation in an elevator system

A technology of elevators and elevator cars, applied in the field of shaking minimization, which can solve problems such as the cost or complexity of occupying real estate space

Inactive Publication Date: 2009-10-21
OTIS ELEVATOR CO
View PDF2 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It takes up additional real estate space or introduces additional cost or complexity in the design and construction of the elevator shaft
Furthermore, driven cars are only considered to mitigate the sway of the compensating ropes and they introduce additional potential complexity into the elevator system

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Sway mitigation in an elevator system
  • Sway mitigation in an elevator system
  • Sway mitigation in an elevator system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] Exemplary embodiments of the present invention provide sway mitigation in an elevator hoistway to control the amount of sway in one or more extension members, such as: Move the cable. Strategically positioning sway mitigation members at appropriate locations in the hoistway corresponding to extension member antinodes for a given potential sway condition provides enhanced sway mitigation over previous solutions.

[0022] figure 1 Selected portions of the elevator system 20 are shown schematically. The elevator car 22 and the counterweight 24 are movable in the hoistway 26 in a known manner. Elevator car 22 and counterweight 24 are supported by a load bearing assembly comprising ropes or conveyor belts that supports the weight of elevator car 22 and counterweight 24 and provides for their movement in a known manner. figure 1 An exemplary carrier assembly 30 is shown. In the illustrated embodiment, a bind compensating member 32 is associated with the elevator car 22 an...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

An elevator system (20) includes an elongated member (30, 32, 34) that may sway under certain conditions. At least one mitigation member (80) is strategically positioned in a mitigation position corresponding to a location of an anti-node (48, 54, 56, 66, 68, 70) of the elongated member (30, 32, 34) for a given sway condition. In a disclosed example, a controller (38) deploys a mitigation member (80) at a mitigation position for a given sway condition determined by the controller (38). In one example, a plurality of sway mitigation members (80) are strategically positioned at various mitigation positions within a hoistway (26). In another example, a sway mitigation member (80) is selectively moveable within a hoistway (26) between a plurality of mitigation positions.

Description

【Technical field】 [0001] The present invention generally relates to elevator systems. More specifically, the present invention relates to the minimization of sway in one or more vertical members in an elevator system. 【Background technique】 [0002] Many elevator systems comprise an elevator car and a counterweight, wherein the elevator car and the counterweight are suspended in the elevator hoistway by ropes (roping) comprising one or more load-bearing members. Typically, a plurality of ropes, cables or conveyor belts are used to support the weight of the elevator car and counterweight and to move the elevator car to a desired location in the elevator hoistway. Usually the load-carrying member is moved along a specific route about several sheaves according to the intended rope arrangement. It is desirable to maintain the load bearing member in a desired orientation based on the rope configuration. [0003] Other vertically extending members exist in many elevator systems...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B66B7/06
Inventor R·K·罗伯茨M·R·古尔维奇J·M·米尔顿-伯努瓦
Owner OTIS ELEVATOR CO