EP3205617B1 - Élément de tension d'ascenseur - Google Patents

Élément de tension d'ascenseur Download PDF

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Publication number
EP3205617B1
EP3205617B1 EP17155315.9A EP17155315A EP3205617B1 EP 3205617 B1 EP3205617 B1 EP 3205617B1 EP 17155315 A EP17155315 A EP 17155315A EP 3205617 B1 EP3205617 B1 EP 3205617B1
Authority
EP
European Patent Office
Prior art keywords
wires
yarn
cord
yarn threads
cords
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP17155315.9A
Other languages
German (de)
English (en)
Other versions
EP3205617A1 (fr
Inventor
John P. Wesson
Huan ZHANG
Scott Alan EASTMAN
Gopal R. Krishnan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Otis Elevator Co
Original Assignee
Otis Elevator Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Otis Elevator Co filed Critical Otis Elevator Co
Publication of EP3205617A1 publication Critical patent/EP3205617A1/fr
Application granted granted Critical
Publication of EP3205617B1 publication Critical patent/EP3205617B1/fr
Active legal-status Critical Current
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/06—Arrangements of ropes or cables
    • B66B7/10—Arrangements of ropes or cables for equalising rope or cable tension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/06—Arrangements of ropes or cables
    • B66B7/062—Belts
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/44—Yarns or threads characterised by the purpose for which they are designed
    • D02G3/48—Tyre cords
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
    • D07B1/0606—Reinforcing cords for rubber or plastic articles
    • D07B1/0613—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the rope configuration
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/22—Flat or flat-sided ropes; Sets of ropes consisting of a series of parallel ropes
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2095—Auxiliary components, e.g. electric conductors or light guides
    • D07B2201/2097—Binding wires
    • D07B2201/2098—Binding wires characterized by special properties or the arrangements of the binding wire
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2207/00—Rope or cable making machines
    • D07B2207/40—Machine components
    • D07B2207/404—Heat treating devices; Corresponding methods
    • D07B2207/4059—Heat treating devices; Corresponding methods to soften the filler material
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2401/00—Aspects related to the problem to be solved or advantage
    • D07B2401/20—Aspects related to the problem to be solved or advantage related to ropes or cables
    • D07B2401/2095—Improving filler wetting respectively or filler adhesion
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2501/00—Application field
    • D07B2501/20—Application field related to ropes or cables
    • D07B2501/2007—Elevators

Definitions

  • the subject matter disclosed herein relates to tension members such as those used in coated belts of elevator systems for suspension and/or driving of the elevator car and/or counterweight.
  • Adhesion and load transfer between the steel tension members in a coated belt provides a critical load path.
  • bonding stabilizes the construction of multi-wire, multi-strand steel cord. This helps minimize fretting, wear and wire breakage. In cases where wire breakage occurs, the bonding with the elastomer jacket will hold the broken wire in place, reducing further damage to the strand, cord and belt.
  • a belt for suspending and/or driving an elevator car includes a plurality of cords.
  • Each cord includes a plurality of wires and at least one yarn thread disposed at an outer periphery of the plurality of wires.
  • An elastomeric jacket substantially retains the plurality of cords.
  • the at least one yarn thread is configured to promote adhesion of the elastomeric jacket to the plurality of cords and reduce fretting of the plurality of wires.
  • the at least one yarn thread is helically wrapped around the plurality of wires.
  • the at least one yarn thread is formed from a polyester, nylon, polyurethane, cotton, wool, rayon, fluoropolymer, or Kevlar material.
  • the at least one yarn thread is at least two yarn threads wrapped helically around the plurality of wires, the at least two yarn threads having opposite lay directions around the plurality of wires.
  • the plurality of wires are arranged into a plurality of strands, the plurality of strands arranged into the cord, at least one strand of the plurality of strands including at least one yarn thread disposed at an outer periphery of the at least one strand.
  • a method of forming a belt for suspending and/or driving an elevator car includes arranging a plurality of wires into a cord, arranging one or more yarn threads at an outer periphery of the plurality of wires, arranging a plurality of cords into a selected arrangement and applying an elastomeric jacket to the plurality of cords to retain the plurality of cords in the selected arrangement.
  • the one or more yarn threads are configured to promote adhesion of the elastomeric jacket to the plurality of cords and reduce fretting of the plurality of wires.
  • the one or more yarn threads are helically wound around the plurality of wires.
  • the one or more yarn threads are formed from a polyester, nylon, polyurethane, cotton, wool, rayon, fluoropolymer, or Kevlar material
  • the one or more yarn threads are arranged at the outer periphery of the plurality of wires prior to a cord closing operation performed on the plurality of wires to arrange the plurality of wires into a cord.
  • the one or more yarn threads are formed into a fabric sleeve around the plurality of wires.
  • the fabric sleeve is formed via one of a weaving or braiding process.
  • the plurality of wires are arranged into a strand, one or more yarn threads are located at an outer periphery of the plurality of wires and a plurality of strands are formed into the cord.
  • FIGS. 1A , 1B and 1C are schematics of exemplary traction elevator systems 10.
  • the elevator system 10 includes an elevator car 12 operatively suspended or supported in a hoistway 14 with one or more belts 16.
  • the one or more belts 16 interact with one or more sheaves 18 to be routed around various components of the elevator system 10.
  • the one or more belts 16 could also be connected to a counterweight 22, which is used to help balance the elevator system 10 and reduce the difference in belt tension on both sides of the traction sheave during operation.
  • the sheaves 18 each have a diameter 20, which may be the same or different than the diameters of the other sheaves 18 in the elevator system 10. At least one of the sheaves 18 could be a drive sheave.
  • the drive sheave 52 is driven by a machine 26. Movement of the drive sheave 52 by the machine 26 drives, moves and/or propels (through traction) the one or more belts 16 that are routed around the drive sheave 52.
  • At least one of the sheaves 18 could be a diverter, deflector or idler sheave. Diverter, deflector or idler sheaves are not driven by a machine 50, but help guide the one or more belts 16 around the various components of the elevator system 10.
  • the elevator system 10 could use two or more belts 16 for suspending and/or driving the elevator car 12.
  • the elevator system 10 could have various configurations such that either both sides of the one or more belts 16 engage the one or more sheaves 18 (such as shown in the exemplary elevator systems in FIGS. 1A , 1B or 1C ) or only one side of the one or more belts 16 engages the one or more sheaves 18.
  • FIG. 2 provides a schematic of an exemplary belt construction or design.
  • Each belt 16 is constructed of one or more cords 24 in a jacket 26.
  • the cords 24 of the belt 16 could all be identical, or some or all of the cords 24 used in the belt 16 could be different than the other cords 24.
  • one or more of the cords 24 could have a different construction or size than the other cords 24.
  • the belt 16 has an aspect ratio greater than one (i.e. belt width is greater than belt thickness).
  • the belts 16 are constructed to have sufficient flexibility when passing over the one or more sheaves 18 to provide low bending stresses, meet belt life requirements and have smooth operation, while being sufficiently strong to be capable of meeting strength requirements for suspending and/or driving the elevator car 12.
  • the jacket 26 could be any suitable material, including a single material, multiple materials, two or more layers using the same or dissimilar materials, and/or a film.
  • the jacket 26 could be a polymer, such as an elastomer, applied to the cords 24 using, for example, an extrusion or a mold wheel process.
  • the jacket 26 could be a woven fabric that engages and/or integrates the cords 24.
  • the jacket 26 could be one or more of the previously mentioned alternatives in combination.
  • the jacket 26 can substantially retain the cords 24 therein.
  • the phrase substantially retain means that the jacket 26 has sufficient engagement with the cords 24 such that the cords 24 do not pull out of, detach from, and/or cut through the jacket 26 during the application on the belt 16 of a load that can be encountered during use in an elevator system 10 with, potentially, an additional factor of safety.
  • the cords 24 remain at their original positions relative to the jacket 26 during use in an elevator system 10.
  • the jacket 26 could completely envelop the cords 24 (such as shown in FIG. 2 ), substantially envelop the cords 24, or at least partially envelop the cords 24.
  • each cord 24 comprises a plurality of wires 28 in a geometrically stable arrangement.
  • the wires 28 are formed from steel or other load-carrying material.
  • the steel wires 28 provide the tensile strength of the cord 24 and determine the bending stress of the cord 24 which, in turn, determines the cord 24 life.
  • some or all of these wires 28 could be formed into strands 30, which are then formed into the cord 24.
  • the phrase geometrically stable arrangement means that the wires 28 (and if used, strands 30) generally remain at their theoretical positions in the cord 24.
  • movement of the wires 28 (and if used, strands 30) relative to each other is limited.
  • relative movement of wire 28 could be limited to less than approximately thirty percent (30%) of its diameter.
  • Relative movement of strand 30 could be limited to less than approximately five percent (5%) of its diameter.
  • the cord 24 includes improvements to increase adhesion of the elastomeric jacket 26 material to the cord 24, and to reduce fretting of the cord 24, thus improving a service life of the cord 24 and thus the belt 16 in which the cord 24 is installed.
  • a plurality of fabric yarn threads 32 or elements are incorporated into the cord 24.
  • the yarn threads 32 are organic materials that bond more easily to the thermoplastic elastomer of the jacket 26 than do the steel materials of the cord 24.
  • the yarn threads 32 are formed from, for example, polyester, nylon, polyurethane, cotton, wool, rayon, fluoropolymer, Kevlar or other materials.
  • the yarn threads 32 may be treated with, for example, an adhesive, thermoplastic, or hot melt adhesive material to improve adhesion of the yarn threads 32 to the steel cord 24 and/or to improve adhesion of the jacket 26 material to the yarn threads 32. Further, the yarn threads 32 may include other additives, such as those to inhibit corrosion of the steel cord 24.
  • the yarn threads 32 are shown at an outer periphery of the cord 24, it is to be appreciated that in other embodiments, which do not form part of the invention, the yarn threads 32 may alternatively or additionally be located at an interior of the cord 24, for example, between adjacent strands 30 and/or between adjacent wires 28 of the same strand 30.
  • yarn threads 32a and 32b may be wrapped around cord 24 in opposite lay directions. While in the embodiments shown in FIGs. 6-8 the yarn threads 32 are helically wrapped around cords 32 after the cord 24 closing operation, it is to be appreciated that, in other embodiments, which do not form part of the invention, one or more strands 30 of the cord 24 may be helically wrapped with yarn threads 32, then the strands 30 are formed into cord 24.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Ropes Or Cables (AREA)

Claims (11)

  1. Courroie (16) pour suspendre et/ou entraîner une cabine d'ascenseur, comprenant :
    une pluralité de câbles (24), chaque câble (24) comportant :
    une pluralité de brins (28) ; et une chemise élastomère (26) retenant sensiblement la pluralité de câbles (24) ;
    dans laquelle chaque câble comporte en outre au moins un fil de filet (32) disposé au niveau d'une périphérie extérieure de la pluralité de brins (28) ;
    dans laquelle l'au moins un fil de filet (32) est formé à partir d'un matériau en polyester, nylon, polyuréthane, coton, laine, rayonne, fluoropolymère, ou Kevlar ; et
    dans laquelle l'au moins un fil de filet (32) est conçu pour favoriser l'adhérence de la chemise élastomère (26) à la pluralité de câbles (24) et réduire l'usure de contact de la pluralité de brins (28), caractérisée en ce que l'au moins un fil de filet (32) est enveloppé de manière hélicoïdale autour de la pluralité de brins (28).
  2. Courroie selon la revendication 1, dans laquelle l'au moins un fil de filet (32) est au moins deux fils de filet enveloppés de manière hélicoïdale autour de la pluralité de brins (28), les au moins deux fils de filet (32) ayant des pas de câblage égaux autour de la pluralité de brins (28).
  3. Courroie selon la revendication 1 ou 2, dans laquelle l'au moins un fil de filet (32) est au moins deux fils de filet (32) enveloppés de manière hélicoïdale autour de la pluralité de brins (28), les au moins deux fils de filet (32) ayant des directions de câblage opposées autour de la pluralité de brins (28).
  4. Courroie selon une quelconque revendication précédente, dans laquelle la pluralité de brins (28) sont agencés en une pluralité de torons (30), la pluralité de torons (30) étant agencés dans le câble (24), au moins un toron (30) de la pluralité de torons comportant au moins un fil de filet (32) disposé au niveau d'une périphérie extérieure de l'au moins un toron (30).
  5. Procédé de formation d'une courroie pour suspendre et/ou entraîner une cabine d'ascenseur, comprenant :
    l'agencement d'une pluralité de brins en un câble ;
    l'agencement d'un ou de plusieurs fils de filet au niveau d'une périphérie extérieure de la pluralité de brins, dans lequel les un ou plusieurs fils de filet sont enroulés de manière hélicoïdale autour de la pluralité de brins ;
    l'agencement d'une pluralité de câbles en un agencement sélectionné ;
    l'application d'une chemise élastomère à la pluralité de câbles pour retenir la pluralité de câbles dans l'agencement sélectionné ;
    dans lequel les un ou plusieurs fils de filet sont formés à partir d'un matériau en polyester, nylon, polyuréthane, coton, laine, rayonne, fluoropolymère, ou Kevlar ; et
    dans lequel les un ou plusieurs fils de filet sont conçus pour favoriser l'adhérence de la chemise élastomère à la pluralité de câbles et réduire l'usure de contact de la pluralité de brins.
  6. Procédé selon la revendication 5, dans lequel les un ou plusieurs fils de filet sont agencés au niveau de la périphérie extérieure de la pluralité de brins avant une opération de fermeture de câble réalisée sur la pluralité de brins pour agencer la pluralité de brins en un câble.
  7. Procédé selon la revendication 5 ou 6, dans lequel deux fils de filet ou plus sont enroulés de manière hélicoïdale autour de la pluralité de brins, les deux fils de filet ou plus ayant des pas de câblage égaux.
  8. Procédé selon l'une quelconque des revendications 5 à 7, dans lequel deux fils de filet ou plus sont enroulés de manière hélicoïdale autour de la pluralité de brins, les deux fils de filet ou plus ayant des directions de câblage opposées.
  9. Procédé selon l'une quelconque des revendications 5 à 8, comprenant en outre la formation des un ou plusieurs fils de filet en un manchon en étoffe autour de la pluralité de brins, et éventuellement la formation du manchon en étoffe via l'un d'un processus de tissage ou de tressage.
  10. Procédé selon l'une quelconque des revendications 5 à 9, comprenant en outre la fusion partielle des un ou plusieurs fils de filet avant l'application de la chemise élastomère pour favoriser l'adhérence des un ou plusieurs fils de filet à la pluralité de brins.
  11. Procédé selon l'une quelconque des revendications 5 à 10, comprenant en outre :
    l'agencement de la pluralité de brins en un toron ;
    l'agencement d'un ou de plusieurs fils de filet au niveau d'une périphérie extérieure de la pluralité de brins ; et
    la formation d'une pluralité de torons dans le câble.
EP17155315.9A 2016-02-09 2017-02-09 Élément de tension d'ascenseur Active EP3205617B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US201662293044P 2016-02-09 2016-02-09

Publications (2)

Publication Number Publication Date
EP3205617A1 EP3205617A1 (fr) 2017-08-16
EP3205617B1 true EP3205617B1 (fr) 2020-12-23

Family

ID=58009717

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17155315.9A Active EP3205617B1 (fr) 2016-02-09 2017-02-09 Élément de tension d'ascenseur

Country Status (2)

Country Link
EP (1) EP3205617B1 (fr)
CN (1) CN107043059B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108217385B (zh) * 2016-12-12 2021-03-12 奥的斯电梯公司 用于电梯系统的混合织物层压皮带
US11655120B2 (en) * 2019-06-28 2023-05-23 Otis Elevator Company Elevator load bearing member including a unidirectional weave

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1625618A (zh) * 2002-01-30 2005-06-08 泰盛电梯资金股份有限公司 升降机用的合成纤维绳索
US7409815B2 (en) * 2005-09-02 2008-08-12 Gore Enterprise Holdings, Inc. Wire rope incorporating fluoropolymer fiber
ES2545112T3 (es) * 2010-05-13 2015-09-08 Otis Elevator Company Miembro de tejido de soporte de carga para un sistema elevador por tracción y método para fabricar este miembro
US9115466B2 (en) * 2010-05-13 2015-08-25 Otis Elevator Company Method of making a woven fabric having a desired spacing between tension members
EP2688827A4 (fr) * 2011-03-21 2014-11-19 Otis Elevator Co Elément de tension d'ascenseur
US20140302316A1 (en) * 2011-10-13 2014-10-09 Nv Bekaert Sa Load bearing assembly comprising a steel rope and a jacket
EP3107857B1 (fr) * 2014-02-18 2020-05-13 Otis Elevator Company Courroie d'ascenseur et procédé de fabrication

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CN107043059B (zh) 2021-01-19
CN107043059A (zh) 2017-08-15
EP3205617A1 (fr) 2017-08-16

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