Rope lifting tool and a rope lifting arrangement

Patent metadata

Field	Value
Publication number	US-10508002-B2
Application number	US-201514963895-A
Country	US
Kind code	B2
Filing date	Dec 9, 2015
Priority date	Jan 21, 2015
Publication date	Dec 17, 2019
Grant date	Dec 17, 2019

Abstract

A rope lifting tool for belt-shaped ropes comprises a first guide for guiding the rope lifting tool along a first guide rail; a second guide for guiding the rope lifting tool along a second guide rail; an upright plate, and an inclined plate at an acute angle relative to the upright plate. The upright plate and the inclined plate have a wedge shaped space between them. A plurality of wedge members are placed adjacent each other inside the wedge-shaped space. A rope gap for receiving an end of a belt-shaped rope is formed between each wedge member and the upright plate, which rope gap is narrowable by wedging of the wedge member in the wedge shaped space. A rope lifting arrangement includes the rope lifting tool.

First claim

The invention claimed is:

1. A rope lifting tool for belt-shaped ropes comprising:
a first guide for guiding the rope lifting tool along a first guide rail;
a second guide for guiding the rope lifting tool along a second guide rail;
an upright plate extending in a vertical direction and including a front surface and a back surface;
an inclined plate including a front surface and a back surface, wherein an entirety of the inclined plate is at an acute angle relative to the upright plate, the upright plate and the inclined plate having a wedge shaped space between them and the front surface of the upright plate overlaps the entirety of the inclined plate and extends beyond the inclined plate in the vertical direction and in a horizontal direction, the horizontal direction being perpendicular to the vertical direction;
a plurality of wedge members placed adjacent each other inside the wedge-shaped space and in contact with the back surface of the inclined plate and the front surface of the upright plate; and
a plurality of guide bolts,
wherein each guide bolt extends only through a respective elongated aperture of the inclined plate into a respective wedge member, each elongated aperture has a substantially oblong shape, and each guide bolt is movable along a length of the respective elongated aperture to alter a vertical position of the respective wedge member,
wherein the back surface of the inclined plate faces the front surface of the upright plate,
wherein the plurality of wedge members are spaced apart in the horizontal direction,
wherein a rope gap for receiving an end of a belt-shaped rope is formed directly between each wedge member and the upright plate, which rope gap is narrowable by wedging of the wedge member in the wedge shaped space,
wherein the first and second guides are configured to slide along the first and second guide rails, respectively, to provide lateral support for the rope lifting tool,
wherein the entirety of the first and second guides are spaced from the upright plate and from the inclined plate, and
wherein each of the upright plate and the inclined plate are substantially planar.

2. The rope lifting tool according to claim 1 , wherein the wedge shaped space and the wedge members are downwardly tapered, and each wedge member is placed in the wedge-shaped space such that each wedge member has opposite each other a front side face for contacting a rope, which front side face faces the upright plate and is parallel with the upright plate, and a back side face, which faces the inclined plate and is parallel with the inclined plate.

3. A rope lifting tool according to claim 2 , wherein the gap for receiving an end of a belt-shaped rope is substantially larger in a width direction of the rope lifting tool than in a thickness direction of the rope lifting tool.

4. The rope lifting tool according to claim 1 , wherein the rope gap for receiving an end of a belt-shaped rope is substantially larger in a width direction of the rope lifting tool than in a thickness direction of the rope lifting tool.

5. The rope lifting tool according to claim 1 , wherein the rope gap for receiving an end of a belt-shaped rope is at least substantially rectangular.

6. The rope lifting tool according to claim 1 , wherein the wedge members are movable separately from each other in the wedge shaped space.

7. The rope lifting tool according to claim 1 , wherein the inclined plate is mounted on the upright plate.

8. The rope lifting tool according to claim 1 , wherein the upright plate comprises a suspending mechanism configured to suspend the rope lifting tool.

9. The rope lifting tool according to claim 8 , wherein the suspending mechanism configured to suspend the rope lifting tool is an aperture for receiving a lifting hook.

10. The rope lifting tool according to claim 1 , wherein the wedge members are movable in the wedge shaped space in a first downward direction such that the rope gap is narrowed and in a second upward direction such that the rope gap is widened.

11. The rope lifting tool according to claim 1 , wherein the wedge shaped space is downwardly tapered and the wedge members are movable in the wedge shaped space between a lower position and an upper position, whereby the rope gap is narrower when the wedge members are in the lower position than in the upper position, and the rope lifting tool comprises a holder configured to hold the wedge members in said upper position.

12. The rope lifting tool according to claim 1 , wherein the rope lifting tool comprises a limit member between wedge members next to each other for limiting the range of movement of wedge members next to each other in the horizontal direction.

13. A rope lifting arrangement comprising:
the rope lifting tool as defined in claim 1 ; and
a plurality of ropes, each having an end placed in the rope gap of said rope lifting tool and clamped immovably therein by wedging of the wedge members.

14. The rope lifting arrangement according to claim 13 , wherein the arrangement further comprises a hoist arranged to lift the lifting tool.

15. The rope lifting tool according claim 1 , wherein each wedge member is provided with a handle positioned on a top thereof for manual movement within the wedge-shaped space.

16. The rope lifting tool according claim 1 , wherein the upright plate is configured to extend parallel to a vertical plane of an elevator hoistway.

17. The rope lifting tool according claim 1 , further comprising a plurality of holding fasteners, each holding fastening extending only through a respective aperture of the inclined plate and into a respective wedge member to vertically fix the respective wedge member within the wedge-shaped space.

18. The rope lifting tool according to claim 1 , wherein the upright plate has a substantially uniform thickness, and
wherein the inclined plate has a substantially uniform thickness.

Assignees

• Kone Corp

Inventors

• Lehtinen Hannu
• Koskinen Antti
• Hallikainen Pekka
• Cornea Toma
• Majasalmi Teemu

Classifications

• B66B7/06 Primary

  Arrangements of ropes or cables · CPC title

• F16G11/04

  with wedging action, e.g. friction clamps (F16G11/02, {F16G11/10} take precedence; {eyes for grommet-thimble type fastenings F16G11/146}) · CPC title

• B66B19/02 Primary

  Installing or exchanging ropes or cables · CPC title

• B66B7/085 Primary

  Belt termination devices · CPC title

• B66B7/08 Primary

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