Rope terminal assembly and a hoisting apparatus

Patent metadata

Field	Value
Publication number	US-10099896-B2
Application number	US-201514963553-A
Country	US
Kind code	B2
Filing date	Dec 9, 2015
Priority date	Dec 30, 2014
Publication date	Oct 16, 2018
Grant date	Oct 16, 2018

Abstract

A rope terminal assembly of a hoisting apparatus includes a first compression member having a first contact face and a second compression member having a second contact face. The compression members are placed such that their contact faces face each other and delimit between them a gap. A belt-shaped rope having a thermoplastic polymer coating forming the outer surface of the rope is placed in the gap, the contact faces of the compression members compressing against opposite wide sides of the belt-shaped rope. One or both of the compression members includes on the contact face thereof, and/or in proximity of the contact face thereof, one or more indentations, each indentation forming a cavity in the compression member which is in open connection with the gap and arranged to be empty when the thermoplastic polymer coating of the rope compressed by the contact face is solid, and to receive via said open connection thermoplastic polymer coating of the rope flowing from the gap pushed by the compression when the thermoplastic polymer coating melts. An elevator is provided with the rope terminal assembly.

First claim

The invention claimed is:

1. A rope terminal assembly of a hoisting apparatus comprising:
a first compression member having a first contact face; and
a second compression member having a second contact face,
wherein said first and second compression members are placed such that their contact faces face each other and delimit between them a gap,
wherein a belt-shaped rope having a thermoplastic polymer coating forming the outer surface of the rope is placed in the gap, the contact faces of the compression members compressing against opposite sides of the belt-shaped rope,
wherein one or both of the compression members comprises on the contact face thereof a plurality of indentations, each indentation forming a cavity in the compression member open to the gap and configured in such a manner that when the thermoplastic polymer coating of the rope compressed by the contact face is solid, the cavity is empty, and when the thermoplastic polymer coating melts, the cavity receives thermoplastic polymer coating of the rope flowing from the gap pushed by the compression, and
wherein the contact face includes contact regions defined between adjacent indentations and contacting a side of the belt-shaped rope, all of the contact regions on each of the contact face are coplanar with one another, and parallel with said side of the belt-shaped rope, a coverage of area of the contact regions together is more than 60% of the contact face, and a coverage of the indentations together is at least 20% and less than 40% of the contact face.

2. The rope terminal assembly according to claim 1 , wherein the indentations are defined between the contact regions.

3. The rope terminal assembly according to claim 1 , wherein the rope terminal assembly comprises a housing on which the compression members are mounted, which housing is fixed to a fixing base.

4. The rope terminal assembly according to claim 1 , wherein the compression members are wedge members, and the terminal assembly comprises a housing comprising a wedge surface for each compression member, and the compression members are movable relative to each other such that the gap is narrowed by wedging of the compression members against the wedge surfaces of the housing when moved along the wedge surface of the housing.

5. The rope terminal assembly according to claim 1 , wherein said indentations are elongated grooves.

6. The rope terminal assembly according to claim 5 , wherein said elongated grooves extend parallel with the rope.

7. The rope terminal assembly according to claim 1 , wherein said rope comprises one or more load bearing members embedded in said thermoplastic polymer coating and extending parallel to the longitudinal direction of the rope unbroken throughout the length of the rope.

8. The rope terminal assembly according to claim 1 , wherein said one or more load bearing members is/are made of composite material comprising reinforcing fibers in polymer matrix.

9. The rope terminal assembly according to claim 1 , wherein said rope comprises plurality of load bearing members, and the indentations are located at points of gaps between two immediately adjacent load bearing members.

10. A hoisting apparatus comprising the rope terminal assembly as defined in claim 1 fixing an end of a rope of the hoisting apparatus immovably to a fixing base.

11. The rope terminal assembly according to claim 1 , wherein the rope terminal assembly comprises a housing on which the compression members are mounted, which housing is fixed to an elevator car or to a counterweight or to a stationary structure of a building.

12. The rope terminal assembly according to claim 1 , wherein said one or more load bearing members is/are made of composite material comprising reinforcing fibers in polymer matrix, said reinforcing fibers being carbon fibers.

13. An elevator, comprising the rope terminal assembly as defined in claim 1 fixing an end of a rope of the hoisting apparatus immovably to a fixing base.

Assignees

• Kone Corp

Inventors

• Lehtinen Hannu
• Helenius Juha

Classifications

• B66B7/08 Primary

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

• B66B7/085 Primary

  Belt termination devices · CPC title

• F16G11/044

  friction clamps deforming the cable, wire, rope or cord · CPC title