Rope, rope arrangement and hoisting device

Patent metadata

Field	Value
Publication number	US-10865070-B2
Application number	US-201715830343-A
Country	US
Kind code	B2
Filing date	Dec 4, 2017
Priority date	Dec 29, 2016
Publication date	Dec 15, 2020
Grant date	Dec 15, 2020

Abstract

A belt-shaped rope of a hoisting device, the rope being substantially larger in its width-direction than thickness-direction, and comprising two or more load bearing members; a coating forming an outer surface of the rope, in which coating the two or more load bearing members are embedded, wherein the two or more load bearing members are oriented to extend parallel with longitudinal direction of the rope adjacent each other in width direction of the rope such that a gap is formed in width direction between load bearing members next to each other, the coating extending into the gap. The coating comprises a first coating portion between load bearing members next to each other, and a second coating portion forming an outer side of the rope facing in thickness direction of the rope, and in that the material of the first coating portion is substantially harder than the material of the second coating portion.

First claim

The invention claimed is:

1. A rope arrangement, comprising:
a belt-shaped rope substantially larger in a width direction than a thickness direction thereof, the belt-shaped rope including,
two or more load bearing members, and
a coating embedding the two or more load bearing members therein, the two or more load bearing members oriented to extend parallel with a longitudinal direction of the belt-shaped rope such that a gap is formed in the width direction between adjacent ones of two or more load bearing members, the coating extending into the gap, the coating including,
a first coating portion between the adjacent ones of the two or more load bearing members, the first coating portion including a first material, and
a second coating portion forming an outer side of the belt-shaped rope facing the thickness direction, the second coating portion including a second material that is substantially softer than the first material; and

a crowned rope wheel including a crowned circumferential surface such that end diameters thereof are smaller than a central diameter thereof, the crowned rope wheel having the belt-shaped rope passing therearound such that the second coating portion forming the outer side of the belt-shaped rope rests against the crowned circumferential surface of the crowned rope wheel, wherein
the first coating portion is made of a material having a first Shore A hardness, and
the second coating portion is made of material having a second Shore A hardness, wherein the first Shore A hardness is more than Shore A 85.

2. The rope arrangement according to claim 1 , wherein the first coating portion between the adjacent ones of the two or more load bearing members is bonded with both of the adjacent ones of the two or more load bearing members to couple the adjacent ones of the two or more load bearing members.

3. The rope arrangement according to claim 1 , wherein the first coating portion between the adjacent ones of the two or more load bearing members is a solid one-piece structure extending between the adjacent ones of the two or more load bearing members throughout their lengths.

4. The rope arrangement according to claim 1 , wherein the belt-shaped rope is configured to be guided by the crowned circumferential surface of the crowned rope wheel.

5. The rope arrangement according to claim 1 , wherein each of the two or more load bearing members is substantially larger in the width direction of the belt-shaped rope than in thickness direction of the belt-shaped rope.

6. The rope arrangement according to claim 1 , wherein each of the two or more load bearing members is shaped to have at least one planar side face.

7. The rope arrangement according to claim 1 , wherein the two or more load bearing members is made of a composite material including reinforcing fibers embedded in a polymer matrix, the reinforcing fibers being carbon fibers or glass fibers.

8. The rope arrangement according to claim 1 , wherein the first coating portion is completely encapsulated within the belt-shaped rope.

9. The rope arrangement according to claim 1 , wherein
the first coating portion forms a first outer side of the belt-shaped rope, and
the second coating portion forms a second outer side of the belt-shaped rope, the second outer side facing the first outer side in thickness direction of the belt-shaped rope.

10. The rope arrangement according to claim 1 , wherein the first coating portion and said second coating portion both include a polymer material.

11. The rope arrangement according to claim 1 , wherein the first coating portion and the adjacent ones of the two or more load bearing members are surrounded by the second coating portion.

12. The rope arrangement according to claim 1 , wherein a second outer side of the belt-shaped rope opposite to the outer side formed by the second coating portion, is contoured to have an uneven surface pattern.

13. A hoisting device comprising:
the rope arrangement of claim 1 , wherein the belt-shaped rope is connected with a load to be hoisted.

14. A rope arrangement, comprising:
a belt-shaped rope substantially larger in a width direction than a thickness direction thereof, the belt-shaped rope including,
two or more load bearing members, and
a coating embedding the two or more load bearing members therein, the two or more load bearing members oriented to extend parallel with a longitudinal direction of the belt-shaped rope such that a gap is formed in the width direction between adjacent ones of two or more load bearing members, the coating extending into the gap, the coating including,
a first coating portion between the adjacent ones of the two or more load bearing members, the first coating portion including a first material, and
a second coating portion forming an outer side of the belt-shaped rope facing the thickness direction, the second coating portion including a second material that is substantially softer than the first material; and

a crowned rope wheel including a crowned circumferential surface such that end diameters thereof are smaller than a central diameter thereof, the crowned rope wheel having the belt-shaped rope passing therearound such that the second coating portion forming the outer side of the belt-shaped rope rests against the crowned circumferential surface of the crowned rope wheel,
wherein the first coating portion and the adjacent ones of the two or more load bearing members are surrounded by the second coating portion.

Assignees

• Kone Corp

Inventors

• Helenius Juha

Classifications

• D07B1/22

  Flat or flat-sided ropes; Sets of ropes consisting of a series of parallel ropes · CPC title

• D07B1/162

  characterised by a plastic or rubber enveloping sheathing · CPC title

• D10B2401/063

  high strength · CPC title

• D07B5/006

  by the properties of an outer surface polymeric coating · CPC title

• D07B2201/2087

  being of the coated type · CPC title