Elevator rope guide system

Patent metadata

Field	Value
Publication number	US-10669125-B2
Application number	US-201715594869-A
Country	US
Kind code	B2
Filing date	May 15, 2017
Priority date	May 15, 2017
Publication date	Jun 2, 2020
Grant date	Jun 2, 2020

Abstract

An elevator rope guide system comprises a plurality of rope guides for restricting the swaying of at least one main rope and a plurality of stop mechanisms each configured to stop a corresponding rope guide. The rope guides are located above an elevator car and/or counterweight and are vertically movable along a hoistway. The stop mechanisms are positioned at different intermediate heights along the hoistway. The elevator rope guides are collected by the elevator car or counterweight as the elevator car or counterweight moves up and are stopped by a corresponding stop mechanism as the elevator car or counterweight moves down.

First claim

What is claimed is:

1. An elevator rope guide system, comprising:
a plurality of rope guides for restricting the swaying of at least one main rope, the rope guides located above an elevator car and/or counterweight and vertically movable along a hoistway; and
a plurality of stop mechanisms each configured to stop a corresponding rope guide, the stop mechanisms positioned at different intermediate heights along the hoistway;
wherein the elevator rope guides are collected by the elevator car or counterweight as the elevator car or counterweight moves up and are stopped by a corresponding stop mechanism as the elevator car or counterweight moves down;
wherein the rope guides are configured to slide along elevator and/or counterweight guide rails positioned on both sides of the elevator car and/or counterweight and each stop mechanism includes a pair of stops respectively provided on each elevator and/or counterweight guide rail;
wherein at least one rope guide includes at least one notch on both lateral sides facing the elevator and/or counterweight guide rails and the stops of the stop mechanisms respectively include at least one protrusion protruding inward from the elevator and/or counterweight guide rails.

2. The elevator rope guide system of claim 1 , wherein each rope guide engages a corresponding stop mechanism and the notches are configured to allow the rope guide to pass the stop mechanisms located above the corresponding stop mechanism.

3. The elevator rope guide system of claim 2 , wherein the notches and the protrusions are vertically aligned.

4. The elevator rope guide system of claim 3 , wherein there are a plurality of rope guides including the at least one notch on both lateral sides, the notches formed in an upper rope guide having a width w 1 smaller than the width w 2 of the notches formed in a lower rope guide.

5. The elevator rope guide system of claim 4 , wherein the protrusions of an upper stop mechanism has a maximum width W 1 smaller than a maximum width W 2 of the protrusions of a lower stop mechanism.

6. The elevator rope guide system of claim 2 , wherein the protrusions of the stop mechanisms are shifted stepwise to different transverse positions.

7. The elevator rope guide system of claim 6 , wherein there are a plurality of rope guides including the at least one notch on both lateral sides, the notches formed in an upper rope guide having a width smaller than the width of the notches formed in a lower rope guide.

8. The elevator rope guide system of claim 1 , wherein the rope guides comprise rollers which rotate on contact with the main rope.

9. The elevator rope guide system of claim 1 , wherein the rope guides comprise at least one damper including a hollow rubber body.

10. The elevator rope guide system of claim 9 , wherein the damper further includes a permanent magnet.

11. The elevator rope guide system of claim 10 , wherein the permanent magnet is positioned to oppose a permanent magnet on a proximal rope guide with like poles facing one another.

12. The elevator rope guide system of claim 1 , wherein the stops of the stop mechanisms respectively include two stop members, the stop members each including a protrusion protruding inward from the elevator and/or counterweight guide rails.

13. The elevator rope guide system of claim 12 , wherein the stop members are attached to the elevator and/or counterweight guide rails.

14. An elevator rope guide system, comprising:
a plurality of rope guides for restricting the swaying of at least one main rope, the rope guides located above an elevator car and/or counterweight and vertically movable along a hoistway; and
a plurality of stop mechanisms each configured to stop a corresponding rope guide, the stop mechanisms positioned at different intermediate heights along the hoistway;
wherein the elevator rope guides are collected by the elevator car or counterweight as the elevator car or counterweight moves up and are stopped by a corresponding stop mechanism as the elevator car or counterweight moves down;
wherein the rope guides are configured to slide along elevator and/or counterweight guide rails positioned on both sides of the elevator car and/or counterweight and each stop mechanism includes a pair of stops respectively provided on each elevator and/or counterweight guide rail;
wherein the stops of the stop mechanisms respectively include two stop members, the stop members each including a protrusion protruding inward from the elevator and/or counterweight guide rails;
wherein the protrusions have a vertical cross-section with tapered sections on top and bottom ends.

15. An elevator system, comprising:
an elevator car and counterweight positioned within a hoistway;
guide rails for respectively guiding the elevator car and counterweight, the guide rails respectively provided on a wall of the hoistway on both sides of the elevator car and counterweight;
at least one main rope for hoisting the elevator car and counterweight; and
a rope guide system; the rope guide system including:
a plurality of rope guides for restricting the swaying of the at least one main rope, the rope guides located above the elevator car and/or counterweight and vertically movable along the hoistway; and
a plurality of stop mechanisms each configured to stop a corresponding rope guide, the stop mechanisms positioned at different intermediate heights along the hoistway;
wherein the elevator rope guides are collected by the elevator car or counterweight as the elevator car or counterweight moves up and are stopped by a corresponding stop mechanism as the elevator car or counterweight moves down;
wherein the rope guides are configured to slide along elevator and/or counterweight guide rails positioned on both sides of the elevator car and/or counterweight and each stop mechanism includes a pair of stops respectively provided on each elevator and/or counterweight guide rail;
wherein at least one rope guide includes at least one notch on both lateral sides facing the elevator and/or counterweight guide rails and the stops of the stop mechanisms respectively include at least one protrusion protruding inward from the elevator and/or counterweight guide rails.

Assignees

• Otis Elevator Co

Inventors

• Miyajima Hiromitsu
• Meguro Daisuke
• Taniguchi Naoki
• Kondo Atsunori
• Fukuyama Takako

Classifications

• B66B7/06 Primary

  Arrangements of ropes or cables · CPC title

• B66B7/021

  with a particular position in the shaft · CPC title

• B66B7/023

  Mounting means therefor · CPC title

• B66B17/12

  Counterpoises · CPC title