Device for limiting sway in an elevator travelling cable

Patent metadata

Field	Value
Publication number	US-11365094-B2
Application number	US-201916730494-A
Country	US
Kind code	B2
Filing date	Dec 30, 2019
Priority date	Jul 5, 2019
Publication date	Jun 21, 2022
Grant date	Jun 21, 2022

Abstract

A device for limiting sway in a travelling cable ( 6 ) in an elevator system is provided. The device comprises: a channel extending in a first direction for receiving the travelling cable ( 6 ) therein, wherein the channel is configured to be mounted in an elevator hoistway ( 2 ) such that the first direction corresponds to a direction of motion of an elevator car ( 4 ) within the hoistway ( 2 ); and an element ( 20 ) configured to move in the first direction along an open side of the channel simultaneously with an elevator car ( 4 ) and to push the travelling cable ( 6 ) into the channel when the element ( 20 ) moves along the open side thereof.

First claim

What is claimed is:

1. A device for limiting sway in a travelling cable ( 6 ) in an elevator system, the device comprising:
a channel ( 50 ) extending in a first direction for receiving the travelling cable ( 6 ) therein,
wherein the channel ( 50 ) is configured to be mounted in an elevator hoistway ( 2 ) such that the first direction corresponds to a direction of motion of an elevator car ( 4 ) within the hoistway ( 2 ); and
an element ( 20 ) configured to move in the first direction along an open side ( 53 ) of the channel ( 50 ) simultaneously with the elevator car ( 4 ) and to push the travelling cable ( 6 ) into the channel ( 50 ) when the element ( 20 ) moves along the open side ( 53 ) thereof;
a first guiding portion ( 58 ) extending parallel and adjacent to the channel ( 50 ) on a first side thereof;
a second guiding portion ( 58 ) extending parallel and adjacent to the channel ( 50 ) on a second side thereof, opposite to the first guiding portion ( 58 );
a first guide element ( 84 ) connected to a first side of the element ( 20 ) and positioned within the first guiding portion ( 58 ) so as to be moveable in the first direction; and
a second guide element ( 84 ) connected to a second side of the element ( 20 ) and positioned within the second guiding portion ( 58 ) so as to be moveable in the first direction;
a first arm ( 72 ) extending from the first guide element ( 84 ) in the first direction;
a second arm ( 74 ) extending from the second guide element ( 84 ) in the first direction;
a third guide element ( 86 ) provided on the first arm ( 72 ) and positioned within the first guiding portion ( 58 ) so as to be moveable in the first direction, wherein the third guide element ( 86 ) is spaced from the first guide element ( 84 ) in the first direction, wherein the third guide element ( 86 ) is spaced directly beneath the first guide element ( 84 ) in the first direction; and
a fourth guide element ( 86 ) provided on the second arm ( 74 ) and positioned within the second guiding portion ( 58 ) so as to be moveable in the first direction, wherein the fourth guide element ( 86 ) is spaced from the second guide element ( 84 ) in the first direction, wherein the fourth guide element ( 86 ) is spaced directly beneath the second guide element ( 84 ) in the first direction.

2. A device as claimed in claim 1 , wherein the element ( 20 ) comprises a sheave.

3. A device as claimed in claim 2 , wherein the sheave ( 20 ), the first guide element ( 84 ) and the second guide element ( 84 ) are aligned on a common axis of rotation.

4. A device as claimed in claim 1 , wherein the first and second guide elements ( 84 ) comprise rollers.

5. A device as claimed in claim 1 , wherein the third and fourth guide elements ( 86 ) comprise rollers.

6. A device as claimed in claim 1 , wherein the first and second arms ( 72 , 74 ) have a weight sufficient to overcome frictional resistance to movement of the first, second, third and fourth guide elements ( 84 , 86 ) in the first and second guiding portions ( 58 ).

7. A device as claimed in claim 6 , wherein weights ( 90 ) are provided on the first and second arms ( 72 , 74 ).

8. A device as claimed in claim 1 , further comprising:
a first brush seal ( 100 ) extending from a first side wall ( 54 ) of the channel ( 50 ); and
a second brush seal ( 100 ) extending from a second, opposite side wall ( 56 ) of the channel ( 50 ) towards the first brush seal ( 100 ).

9. A device as claimed in claim 1 , wherein the traveling cable ( 6 ) provides electrical power to the elevator car ( 4 ).

10. An elevator system comprising:
a hoistway ( 2 );
an elevator car ( 4 ) moveable within the hoistway ( 2 );
a travelling cable ( 6 ) connecting the elevator car ( 4 ) to a power supply and/or to a controller; and
a device as claimed in claim 1 , wherein the channel ( 50 ) is mounted in the elevator hoistway ( 2 ).

11. An elevator system as claimed in claim 10 , wherein the first direction is a vertical direction.

12. An elevator system as claimed in claim 11 , wherein the travelling cable ( 6 ) extends within the channel ( 50 ) above the element ( 20 ) and the element ( 20 ) pushes the travelling cable ( 6 ) adjacent thereto into the channel ( 50 ) when the element ( 20 ) moves downwardly along the open side ( 53 ) of the channel ( 50 ).

13. An elevator system as claimed in claim 10 , wherein the travelling cable ( 6 ) is connected to the element ( 20 ) to drive the element ( 20 ) in the first direction along an open side ( 53 ) of the channel ( 50 ) simultaneously with the elevator car ( 4 ).

14. An elevator system as claimed in claim 10 , further comprising a strap ( 22 ) extending between the elevator car ( 4 ) and the element ( 20 ), wherein the strap ( 22 ) is configured to drive the element ( 20 ) in the first direction along an open side ( 53 ) of the channel ( 50 ) simultaneously with the elevator car ( 4 ).

15. An elevator system as claimed in claim 14 , wherein the strap ( 22 ) is positioned on the elevator car ( 4 ) to avoid interference with the travelling cable ( 6 ).

Assignees

• Otis Elevator Co

Inventors

• Rocher Jean-Emile
• Beauchaud Frederic
• Convard Emmanuel
• Trouvain Guillaume

Classifications

• B66B7/023

  Mounting means therefor · CPC title

• B66B7/06 Primary

  Arrangements of ropes or cables · CPC title

• B66B11/0226 Primary

  Constructional features, e.g. walls assembly, decorative panels, comfort equipment, thermal or sound insulation · CPC title

• B66B11/00

  Main component parts of lifts in, or associated with, buildings or other structures · CPC title

• B66B7/064

  Power supply or signal cables · CPC title