Methods and devices for surveying elevator hoistways

A shaft and electronic measurement technology, applied in the direction of measuring devices, optical devices, transportation and packaging, etc., can solve problems such as time-consuming, costly and expensive

Inactive Publication Date: 2013-03-13
OTIS ELEVATOR CO
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

State-of-the-art shaft survey tools and methods are not only time-consuming and costly, but are also subject to relatively large margins of error

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
  • Methods and devices for surveying elevator hoistways
  • Methods and devices for surveying elevator hoistways
  • Methods and devices for surveying elevator hoistways

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] Wherever possible, the same or like reference numbers will be used throughout the drawings to refer to the same or like parts.

[0016] figure 1 is a front view of a structure in the form of an elevator shaft 10 and a shaft survey system 20 according to the invention. The hoistway survey system 20 includes a conveyor 22 , a platform such as an electronic measurement device (EMD) 24 , an electronic controller 26 , and an optical alignment system 28 . exist figure 1 , EMD 24 may be connected to conveyor 22 , and conveyor 22 may be configured to pass EMD 24 through hoistway 10 . As the EMD 24 passes through the hoistway 10, the EMD 24 may be configured to measure distances, such as the lateral distance D1 between the side 24c of the EMD 24 and the wall 10c of the hoistway 10 and the longitudinal distance D2 between the bottom 24b of the EMD 24 and the bottom 10a of the hoistway. Electronic controller 26 may be coupled to EMD 24 and configured to store and / or transmit me...

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

A device for surveying an enclosed structure (10) includes a platform (24) configured to longitudinally traverse the structure (10), at least one first distance sensor (48) connected to the platform (24) and configured to measure a lateral distance between a point on the platform (24) and a wall of the structure (10), at least one second distance sensor (50) connected to the platform (24) and configured to measure a longitudinal distance between a point on the platform (24) and a first end of the structure (10), and a transport machine (22) configured to move the platform (24) substantially longitudinally within the structure (10).

Description

technical field [0001] The present invention relates to the field of surveying elevator shafts and in particular to methods and devices for performing such surveys. Background technique [0002] It is known in the prior art to use elongated guide rails to guide or support the elevator car. Elevator systems typically use two guide rails disposed on opposite sides of the elevator car and extending along the entire length of the elevator hoistway. The elevator car is usually suspended by steel cables or belts at the upper end of the hoistway or by hydraulic pistons provided at the bottom of the hoistway, and is guided by guide rails as the elevator car passes through the hoistway. As the elevator car travels through the hoistway, even a slight deflection in the guide rail sections or a small discontinuity between the guide rail sections can cause the traveling elevator car to shake or vibrate. [0003] Proper alignment of rails in a hoistway to prevent rail defects depends la...

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 Patents(China)
IPC IPC(8): B66B19/00
CPCG01B17/00B66B19/00G01B11/14B66B19/007B66B7/00
Inventor M·邱
Owner OTIS ELEVATOR CO
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap