Rope anchor and elevator arrangement and method for constructing elevator

Patent metadata

Field	Value
Publication number	US-12398018-B2
Application number	US-202318328221-A
Country	US
Kind code	B2
Filing date	Jun 2, 2023
Priority date	Dec 21, 2020
Publication date	Aug 26, 2025
Grant date	Aug 26, 2025

Abstract

The invention relates to a rope anchor for anchoring one or more ropes of an elevator, comprising at least a wedge housing comprising a tapering nest shaped to have a narrow end which is open towards a first direction, and a wide end which is open towards a second direction; and one or more wedge members mounted in the tapering nest for being wedged against a rope passing through the tapering nest; and one or more spring members for urging and/or arranged to urge the one or more wedge member towards the narrow end of the tapering nest; and a releasing mechanism actuatable to move the one or more wedge members ( 2,3 ) towards the wide end of the tapering nest. The invention also relates to an elevator arrangement comprising said anchor, as well as to a method implementing the arrangement.

First claim

The invention claimed is:

1. A rope anchor for anchoring one or more ropes of an elevator, the rope anchor comprising at least:
a wedge housing including a tapering nest having a narrow end open towards a first direction, and a wide end open towards a second direction;
one or more wedge members in the tapering nest configured to be wedged against a rope passing through the tapering nest;
one or more spring members configured to urge the one or more wedge members towards the narrow end of the tapering nest;
a releasing mechanism actuatable to move the one or more wedge members towards the wide end of the tapering nest; and
one or more guide rollers configured to guide the rope into the wide end of the tapering nest.

2. The rope anchor according to claim 1 , wherein the releasing mechanism comprises a turnable actuation member turnable to move the one or more wedge members towards the wide end of the tapering nest.

3. The rope anchor according to claim 1 , wherein each said wedge member comprises a rope groove configured to receive a rope.

4. The rope anchor according to claim 1 , wherein the releasing mechanism comprises:
a push member movable to push one or more of the one or more wedge members in the tapering nest towards the wide end; and
a turnable actuation member connected in a force transmitting manner with the push member,
wherein the push member is movable by turning the turnable actuation member.

5. The rope anchor according to claim 4 , wherein the releasing mechanism comprises one or more transmission members between the turnable actuation member and the push member, the one or more transmission members configured to transmit movement of the turnable actuation member to the push member to move the push member to push said one or more wedge members.

6. The rope anchor according to claim 1 , wherein the rope anchor comprises a frame and a releasable rope locking means on the frame, the releasable rope locking means configured to
lock one or more ropes immovable relative to the frame, the one or more ropes including at least said rope, and
act on a portion of the rope to be locked, the portion of the rope to be locked extending into the nest from a side of the wedge housing towards the wide end of the nest.

7. An elevator arrangement comprising:
an elevator car in a hoistway; and
a roping comprising at least a rope connected to the elevator car, and the rope anchor according to claim 1 anchoring the rope.

8. The elevator arrangement according to claim 7 , further comprising:
a housing machine moveable in a first position in the hoistway,
wherein the rope passes around a drive wheel of the hoisting machine.

9. The elevator arrangement according to claim 8 , further comprising:
a hoisting arrangement configured to at least one of
hoist the hoisting machine to a second position in the hoistway, the second position being higher than said first position,
hoist the rope anchor in the hoistway, or
hoist a rope fixing of the rope in the hoistway.

10. The elevator arrangement according to claim 7 , wherein the rope anchor comprises a frame and a releasable rope locking means on the frame, the releasable rope locking means configured to
lock one or more ropes immovable relative to the frame, the one or more ropes including at least said rope, and
act on a portion of the rope to be locked, the portion of the rope to be locked extending into the nest from a side of the wedge housing towards the wide end of the nest.

11. A method for constructing an elevator, the method comprising:
providing an elevator arrangement as defined in claim 7 ;
transporting passengers and/or goods in an elevator car while a hoisting machine is in a first position in a hoistway;
performing construction work while the hoisting machine is in said first position;
releasing the rope anchor by actuating the releasing mechanism to move the one or more wedge members towards the wide end of the tapering nest;
hoisting the hoisting machine, mounting the hoisting machine to a second position higher than the first position, and supplying an additional portion of rope from a rope supply storage through the released rope anchor;
reanchoring the rope with the rope anchor; and
using the elevator car for transporting passengers and/or goods while the hoisting machine is in said second position.

12. An elevator arrangement comprising:
the rope anchor according to claim 1 ; and
a rope supply storage,
wherein the rope passes from the rope supply storage to the rope anchor, and from the rope anchor to an elevator car.

13. The elevator arrangement according to claim 12 , wherein the rope supply storage is lower than the rope anchor, and the rope passes from the rope supply storage upwards, over a guide roller mounted higher than the tapering nest and downwards to the rope anchor.

14. The rope anchor according to claim 1 , wherein the narrow end is below the wide end.

Assignees

• Kone Corp

Inventors

• Helenius Juha
• Mustalahti Jorma
• Rasanen Matti
• Lanz Otto
• Laine Janne
• Venho Anssi
• Haapaniemi Markku
• Haikonen Aki

Classifications

• B66B19/00

  Mining-hoist operation · 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

• B66B7/068

  Cable weight compensating devices · CPC title

• B66B19/04

  Installing or removing mining-hoist cars, cages, or skips · CPC title

• B66B7/08 Primary

  for connection to the cars or cages, e.g. couplings · CPC title