Inspection assembly for elevator system

Patent metadata

Field	Value
Publication number	US-11472671-B2
Application number	US-201916676892-A
Country	US
Kind code	B2
Filing date	Nov 7, 2019
Priority date	Nov 7, 2019
Publication date	Oct 18, 2022
Grant date	Oct 18, 2022

Abstract

Disclosed is an assembly having: at least one drive wheel configured to roll against a hoistway rail of an elevator system; and a drive mechanism supported by the assembly and configured to drive the at least one of drive wheel, wherein the assembly is configured to support one or more sensors.

First claim

What is claimed is:

1. An assembly comprising:
at least one drive wheel configured to roll against a hoistway rail of an elevator system;
a drive mechanism supported by the assembly and configured to drive the at least one of drive wheel,
wherein the assembly is configured to support one or more sensors; and
wherein the at least one drive wheel comprises a plurality of drive wheels configured to roll against respective ones of a plurality of side surfaces of the hoistway rail; and
wherein a wheel biasing member biases the plurality of drive wheels toward one another to provide a pinch load against the hoistway rail when positioned against the hoistway rail.

2. The assembly of claim 1 , wherein the wheel biasing member is a spring or an actuator.

3. The assembly of claim 1 , including a plurality of drive-wheel tracks that converge toward one end of the assembly, and the plurality of drive wheels move toward the one end of the assembly in the plurality of drive-wheel tracks responsive to the wheel biasing member biasing the drive wheels toward one another, thereby increasing pressure against the hoistway rail.

4. The assembly of claim 1 , comprising a guide implement configured to maintain an orientation of the assembly along the hoistway rail.

5. The assembly of claim 4 , wherein the guide implement includes an alignment-biasing member configured to apply a biasing force that urges the assembly toward the hoistway rail, thereby maintaining the orientation of the assembly against the hoistway rail.

6. The assembly of claim 5 , wherein the alignment-biasing member implement includes one or more magnets configured to apply a biasing force that urges the assembly toward the hoistway rail, thereby maintaining the orientation of the assembly against the hoistway rail.

7. The assembly of claim 6 , wherein the one or more magnets are a plurality of magnets spaced along a height of the assembly.

8. The assembly of claim 7 , including a magnet carrier that is movable by an actuator to move the plurality of magnets.

9. The assembly of claim 6 , wherein the guide implement includes one or more guide wheels configured to roll against the hoistway rail when the assembly is disposed against the hoistway rail.

10. The assembly of claim 4 , wherein the guide implement includes one or more guide slides that are configured to slide against the hoistway rail.

11. The assembly of claim 10 , wherein the one or more guide slides includes a plurality of guide slides that are configured to slide against respective ones of the plurality of side surfaces of the hoistway rail.

12. The assembly of claim 11 , wherein the assembly includes a plurality of guide-slide tracks, and the plurality of guide slides are configured to move along respective ones of the plurality of guide-slide tracks, thereby positioning the plurality of guide slides closer to or further from one another.

13. The assembly of claim 1 , wherein the one or more sensors includes one or more of a cameras, 3D scanners, audio monitoring equipment, and vibration monitoring equipment.

14. The assembly of claim 1 , wherein:
the assembly includes a body that defines an L-bracket; and
when the assembly is positioned on the hoistway rail:
the one end of the body is a vertical top of the body and the other end of the body is a vertical bottom of the body;
one member of the L-bracket is vertical, and another member of the L-bracket is horizontal; and
the one or more of drive-wheels are rotationally connected to the one member and the one or more sensors is mounted to the other member.

15. An elevator system including a hoistway rail and the assembly of claim 1 , the assembly being disposed against the hoistway rail.

16. A method of inspecting a hoistway rail, comprising:
positioning an assembly against the hoistway rail;
biasing at least one drive wheel against the hoistway rail to increase friction between the least one drive wheel and the hoistway rail;
driving the at least one drive wheel to move the assembly along the hoistway rail; and
communicating with one or more sensors supported by the assembly;
wherein the at least one drive wheel comprises a plurality of drive wheels configured to roll against respective ones of a plurality of side surfaces of the hoistway rail; and
wherein a wheel biasing member biases the plurality of drive wheels toward one another to provide a pinch load against the hoistway rail when positioned against the hoistway rail.

17. The method of claim 16 , including moving one or more magnets of a guide implement toward the hoistway rail for orienting the assembly against the hoistway rail.

18. The method of claim 16 , including manipulating one or more guide slides of the guide implement for orienting the assembly against the hoistway rail.

Assignees

• Otis Elevator Co

Inventors

• Phillippi Scott
• Bhaskar Kiron
• Crute Joseph

Classifications

• B66B7/1246 Primary

  specially adapted for guides · CPC title

• B66B9/00 Primary

  Kinds or types of lifts in, or associated with, buildings or other structures (characterised by control systems B66B1/00; apparatus for raising or lowering persons on stages of theatres A63J5/12) · CPC title

• B66B5/0018

  Devices monitoring the operating condition of the elevator system · CPC title

• B66B7/046

  Rollers · CPC title

• G01M5/0025

  of elongated objects, e.g. pipes, masts, towers or railways (G01M5/0058 takes precedence) · CPC title