Elevator system

Patent metadata

Field	Value
Publication number	US-10745246-B2
Application number	US-201515567216-A
Country	US
Kind code	B2
Filing date	Apr 17, 2015
Priority date	Apr 17, 2015
Publication date	Aug 18, 2020
Grant date	Aug 18, 2020

Abstract

An elevator system is provided including a hoistway having a plurality of landings. An elevator car is configured to move within the hoistway between the plurality of landings. A plurality of guide rails guide movement of the elevator car and a counterweight within the hoistway. Each guide rail includes a base and a blade. A machine assembly is mounted within the hoistway and includes a traction sheave rotatable about an axis. The traction sheave is configured to drive movement of the elevator car between the plurality of landings. At least one of the plurality of guide rails is arranged in an overlapping configuration with the machine assembly such that a plane defined by the base of the guide rail is parallel to the axis and intersects a portion of the traction sheave.

First claim

What is claimed is:

1. An elevator system, comprising:
a hoistway having a plurality of landings;
an elevator car configured to move within the hoistway between the plurality of landings;
a plurality of guide rails configured to guide movement of at least one of the elevator car and a counterweight arranged within the hoistway, wherein each of the plurality of guide rails includes a base and a blade; and
a machine assembly mounted within the hoistway and including a traction sheave rotatable about an axis, the traction sheave being configured to drive movement of the elevator car between the plurality of landings, wherein at least one of the plurality of guide rails is arranged in an overlapping configuration with the machine assembly such that a plane defined by the base of the at least one guide rail is parallel to the axis and intersects a portion of the traction sheave, and at least one notch is formed in the base of the at least one guide rail such that a clearance exists between an outer periphery of the traction sheave and the base of the at least one guide rail.

2. The elevator system according to claim 1 , wherein the at least one guide rail is positioned within an opening formed in the traction sheave.

3. The elevator system according to claim 2 , wherein the opening is greater than the at least one guide rail.

4. The elevator system according to claim 1 , wherein multiple guide rails are arranged in an overlapping configuration with the machine assembly, and each of the guide rails is arranged within a footprint of the machine assembly.

5. The elevator system according to claim 1 , wherein multiple guide rails are arranged in an overlapping configuration with the machine assembly, at least one of the guide rails being arranged outside of a footprint of the machine assembly.

6. The elevator system according to claim 1 , wherein the at least one guide rail extends vertically above the machine assembly.

7. The elevator system according to claim 1 , wherein the machine assembly is positioned adjacent a top landing of the plurality of landings.

8. The elevator system according to claim 1 , wherein when the elevator car is parked at an adjacent landing, the machine assembly is accessible from an interior of the elevator car.

9. The elevator system according to claim 1 , wherein the at least one guide rail arranged in an overlapping configuration with the machine assembly is formed from solid steel.

10. The elevator system according to claim 1 , wherein the at least one guide rail arranged in an overlapping configuration with the machine assembly is formed from bent sheet metal.

Assignees

• Otis Elevator Co

Inventors

• Fonteneau Nicolas
• Beauchaud Frederic
• Convard Emmanuel

Classifications

• B66B7/021

  with a particular position in the shaft · CPC title

• B66B11/0045 Primary

  in the hoistway · CPC title

• B66B7/022 Primary

  with a special shape · CPC title