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Elevator overrun system

A technology for overrunning, elevator systems, applied in elevator overrunning systems, 07] In addition to or in areas other than one or more of the features described herein, it is possible to solve problems such as inaccessibility of elevator system features

Active Publication Date: 2021-06-01
OTIS ELEVATOR CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During maintenance, certain features of the elevator system may not be accessible when the elevator car is at an overtravel distance

Method used

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  • Elevator overrun system
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  • Elevator overrun system

Examples

Experimental program
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Embodiment Construction

[0031] figure 1 is a perspective view of an elevator system 101 comprising an elevator car 103 , counterweight 105 , ropes 107 , guide rails 109 , hoist 111 , position encoder 113 and controller 115 . The elevator car 103 and the counterweight 105 are connected to each other by ropes 107 . The rope 107 may include or be configured as, for example, a rope, a steel cable, and / or a coated steel belt. Counterweight 105 is configured to balance the load of elevator car 103 and is configured to facilitate movement of elevator car 103 within elevator shaft 117 and along guide rail 109 simultaneously and in opposite directions relative to counterweight 105 .

[0032] Rope 107 engages elevator 111 , which is part of the overhead structure of elevator system 101 . Elevator 111 is configured to control movement between elevator car 103 and counterweight 105 . Position encoder 113 may be mounted on an upper sheave of governor system 119 and may be configured to provide a position signa...

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Abstract

An elevator overrun system has a first body arranged to be fixedly mounted to a part of an elevator system or an elevator shaft; a second body positioned within said first body and relatively when the first body moves from a deployed state to a retracted state; and a limit switch located at a distal end of the second body, the limit switch being configured to interact with a component of the elevator system Acts to stop the movement of the elevator car.

Description

Background technique [0001] The subject matter disclosed herein relates generally to elevator systems, and more particularly to elevator overrun systems for enabling maintenance on elevator systems. [0002] The elevator system is installed within an overtravel distance above the elevator car at the top of the elevator shaft. During construction, installation and maintenance of elevator systems, overtravel distances are manually measured to ensure regulatory compliance and / or compliance with system design and / or requirements. The overrun distance may be arranged to prevent the elevator car from being raised above a certain level or distance from the top / top of the elevator shaft. During maintenance, certain features of the elevator system may not be accessible when the elevator car is at an overtravel distance. Therefore, an elevator overrun system may be necessary to enable the elevator car to move over an overrun distance to allow for proper maintenance of the elevator sys...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B5/04B66B17/12
CPCB66B5/044B66B17/12B66B5/005B66B5/0056B66B5/282B66B5/0087B66B5/28B66B1/28B66B9/00
Inventor J-E.罗歇尔G.西里古J.M.邦吉鲍G.特鲁文A.卡兹G.富尼耶
Owner OTIS ELEVATOR CO
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