Combined guide rail for an elevator system

Patent metadata

Field	Value
Publication number	US-10252886-B2
Application number	US-201415116292-A
Country	US
Kind code	B2
Filing date	Feb 4, 2014
Priority date	Feb 4, 2014
Publication date	Apr 9, 2019
Grant date	Apr 9, 2019

Abstract

A combined guide rail for an elevator system includes a car guide rail portion to guide an elevator car along an elevator car travel path and a counterweight guide rail portion to guide a counterweight of the elevator system along a counterweight travel path. A connecting portion extends from the car guide rail portion to the counterweight guide rail portion. The car guide rail portion, the counterweight guide rail portion and the connecting portion are formed together as a single unitary structure from a single piece of material.

First claim

The invention claimed is:

1. A combined guide rail for an elevator system comprising:
a car guide rail portion to guide an elevator car along an elevator car travel path;
a counterweight guide rail portion to guide a counterweight along a counterweight travel path; and
a connecting portion extending from the car guide rail portion to the counterweight guide rail portion;
wherein the car guide rail portion, the counterweight guide rail portion and the connecting portion are formed as a unitary structure from a single piece of material;
wherein the material is a sheet metal material; and
wherein the connecting portion is formed from two thicknesses of the sheet metal material.

2. The combined guide rail of claim 1 , wherein the car guide rail portion includes a car guide portion extending from a car base portion.

3. The combined guide rail of claim 2 , wherein the car base portion has a triangular cross-section.

4. The combined guide rail of claim 1 , wherein the counterweight guide rail portion includes a counterweight guide portion extending from a counterweight base portion.

5. The combined guide rail of claim 4 , wherein the counterweight base portion has a triangular cross-section.

6. The combined guide rail of claim 1 , further comprising a plurality of combined guide rail segments arranged end to end, each guide rail segment formed from a single piece of material.

7. An elevator system comprising:
an elevator car disposed in a hoistway;
a counterweight disposed in the hoistway and operably connected to the elevator car; and
a combined guide rail disposed in the hoistway including:
a car guide rail portion interactive with the elevator car to guide the elevator car along an elevator car travel path;
a counterweight guide rail portion interactive with the counterweight to guide the counterweight along a counterweight travel path; and
a connecting portion extending from the car guide rail portion to the counterweight guide rail portion;

wherein the car guide rail portion, the counterweight guide rail portion and the connecting portion are formed as a unitary structure from a single piece of material;
wherein the material is a sheet metal material; and
wherein the connecting portion is formed from two thicknesses of the sheet metal material.

8. The elevator system of claim 7 , wherein the car guide rail portion includes a car guide portion extending from a car base portion.

9. The elevator system of claim 8 , wherein the car base portion has a triangular cross-section.

10. The elevator system of claim 7 , wherein the counterweight guide rail portion includes a counterweight guide portion extending from a counterweight base portion.

11. The elevator system of claim 10 , wherein the counterweight base portion has a triangular cross-section.

12. The elevator system of claim 7 , further comprising a plurality of combined guide rail segments arranged end to end, each guide rail segment formed from a single piece of material.

13. The elevator system of claim 12 , wherein guide rail segments are aligned with each other via one or more guide brackets at least partially inserted into one or more of adjacent car guide rail portions or adjacent counterweight guide rail portions of the adjacent guide rail segments.

14. The elevator system of claim 13 , wherein the one or more guide brackets are positioned in a base portion of one or more of the car guide rail portion or the counterweight guide rail portion.

15. The elevator system of claim 12 , further comprising one or more a rail plates spanning adjacent car guide rail portions and securing a first car guide rail portion of a first guide rail segment to a second car guide rail portion of a second guide rail segment.

16. The elevator system of claim 7 , wherein the combined guide rail is secured to a wall of the hoistway.

17. The elevator system of claim 16 , wherein the combined guide rail is secured to the wall of the hoistway via one of more fishplates.

Assignees

• Otis Elevator Co

Inventors

• Fernandez Juan Jose
• Monzon Andres
• Sanz Francisco Luis
• Gil Santiago

Classifications

• B66B7/026

  Interconnections · CPC title

• B66B9/00

  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

• B66B7/022 Primary

  with a special shape · CPC title