EP4058390B1 - Câble d'une courroie d'ascenseur ayant des brins formés à partir de filaments ayant différentes épaisseurs de revêtement - Google Patents

Câble d'une courroie d'ascenseur ayant des brins formés à partir de filaments ayant différentes épaisseurs de revêtement Download PDF

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Publication number
EP4058390B1
EP4058390B1 EP20793652.7A EP20793652A EP4058390B1 EP 4058390 B1 EP4058390 B1 EP 4058390B1 EP 20793652 A EP20793652 A EP 20793652A EP 4058390 B1 EP4058390 B1 EP 4058390B1
Authority
EP
European Patent Office
Prior art keywords
strand
filaments
coating
filament
elevator belt
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.)
Revoked
Application number
EP20793652.7A
Other languages
German (de)
English (en)
Other versions
EP4058390A1 (fr
Inventor
Jan-Henning Quass
Hubert Göser
Andre Kucharczyk
Stephan Brocke
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.)
ContiTech Antriebssysteme GmbH
Original Assignee
ContiTech Antriebssysteme GmbH
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Filing date
Publication date
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Publication of EP4058390A1 publication Critical patent/EP4058390A1/fr
Application granted granted Critical
Publication of EP4058390B1 publication Critical patent/EP4058390B1/fr
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B66B7/062—Belts

Definitions

  • the invention relates to an elevator belt made of elastomeric material, which has embedded tension or strength members running in the longitudinal direction of the belt, which are designed in the form of cords made of one or more strands, the strands being made up of filaments provided with a coating, which are wrapped around a Filament serving as a strand core is arranged, preferably beaten.
  • elevator belts can be designed as flat belts, V-ribbed belts or other profiled belts made of elastomeric material and are provided with tension members or strength members that are embedded within the elastomeric material in the longitudinal direction of the elevator belts and essentially absorb the tensile forces.
  • the tension members can be made of different materials, but are usually thin steel cords, which on the one hand are completely enclosed by the elastomeric material and on the other hand are protected from corrosion by a coating. For steel cords, this is usually a relatively thin zinc coating.
  • the steel cords usually consist of individual strands wrapped around each other, which in turn consist of several twisted or wrapped filaments.
  • the object of the invention was therefore to provide an elevator belt that does not have this tendency to form friction rust, or only to a lesser extent, and thus allows a longer operating time before the so-called discard maturity is reached, i.e. the elevator belt has to be replaced.
  • the filament forming the strand core which is called the “king filament” in technical jargon, is provided with a thicker coating than the filaments surrounding the strand core.
  • the resulting effect of reduced abrasion appears to be based on a interaction that arises from the fact that the thickened coating can act both as a "smear layer” and as a “sacrificial layer”.
  • the thickened coating can act both as a "smear layer” and as a “sacrificial layer”.
  • the occurrence of brown fretting rust is avoided or significantly delayed, advantageously and particularly pronounced when the cords are formed from several strands, with an internal central strand consisting of several external strands.
  • the filament of the inner central strand that forms the strand core has a thicker coating than the filaments that form the strand cores of the outer strands.
  • a further advantageous embodiment is that the coating of the filaments forming the strand cores is at least 10% thicker than the coating of the filaments surrounding the strand cores, preferably more than 30% thicker.
  • the coating of the filaments forming the strand cores is at least 10% thicker than the coating of the filaments surrounding the strand cores, preferably more than 30% thicker.
  • a further advantageous embodiment is that the cords are designed as steel cords and the coating is a zinc layer. This results in relatively easy-to-produce and inexpensive cord materials that optimally meet the requirements for elevator belts.
  • a further advantageous embodiment for such a cord construction is that the zinc layer contains further alloy components, preferably aluminum (Al). This increases the corrosion resistance and further reduces abrasion.
  • the elevator belt has cords with filaments in which an iron-zinc alloy is formed between the zinc layer and the filament surface.
  • the tension or strength members are designed as steel cords in the form of a 7x7 construction.
  • the inner central strand has a filament forming the strand core with a zinc coating of at least 1.5 ⁇ m or in a second variant at least 2.5 ⁇ m, as well as six filaments surrounding the strand core with a zinc coating of at least 1.0 ⁇ m or in a second variant at least 2 .0 ⁇ m.
  • the six strands on the outside each have a filament forming the strand core with a zinc coating of at least 1 ⁇ m or in a second variant at least 2.0 ⁇ m and six filaments surrounding the strand core with a zinc coating of at least 0.5 ⁇ m or in a second variant at least 1.0 ⁇ m .
  • the second variant/training also serves as an exemplary embodiment, as stated in the Figure 1 is shown.
  • the Fig. 1 shows a cord or tension member 1 of an elevator belt.
  • the tension member is a steel cord in the form of a 7x7 construction, which means that the cord or tension member 1 has seven strands L1 to L7 each with seven filaments F1 to F7, namely a central strand L1 and six strands surrounding this central strand on the outside L2 to L7. Each strand then has a filament F1 serving as the strand core, the so-called “king filament” which is surrounded by six further filaments F2 to F7.
  • the filaments belonging to the central, internal strand L1 are provided with a further index "i" so that the internal strand has the filaments Fi1 to Fi7.
  • the filaments of the strands L2 to L7 arranged on the circumference are provided with a further index "a” so that the external strands each have the filaments Fa1 to Fa7.
  • the inner central strand L1 has a filament Fi1 forming the strand core with a zinc coating of at least 2.5 ⁇ m, as well as six filaments Fi2 to Fi7 surrounding the strand core with a zinc coating of at least 2.0 ⁇ m.
  • the six external strands L2 to L7 each have a filament forming the strand cores Fa1 with a zinc coating of at least 2.0 ⁇ m and six filaments Fa2 to Fa7 surrounding the respective strand core with a zinc coating of at least 1.0 ⁇ m.
  • the zinc coating of the respective inner cores Fa1 (of the external strands L2 to L7) corresponds to the zinc coating of the outer filaments Fi2 to Fi7 of the internal strand L1.

Landscapes

  • Ropes Or Cables (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)

Claims (10)

  1. Courroie d'ascenseur composée de matériau élastomérique, qui présente des supports de traction ou de résistance incorporés et s'étendant dans la direction longitudinale de la courroie, qui sont formés sous forme de câbles (1) à partir d'un ou plusieurs torons (L1-L7), les torons étant construits à partir de filaments (Fi1-Fi7 ; Fa1-Fa7) pourvus d'un revêtement, qui sont disposés, de préférence enroulés, autour d'un filament (Fi1; Fa1) servant d'âme de toron, caractérisée en ce que le filament formant l'âme de toron est pourvu d'un revêtement plus épais que les filaments (Fi2-Fi7 ; Fa2-Fa7) entourant l'âme de toron.
  2. Courroie d'ascenseur selon la revendication 1, dans laquelle les câbles sont formés de plusieurs torons, un toron central intérieur (L1) étant entouré de plusieurs torons situés à l'extérieur (L2-L7).
  3. Courroie d'ascenseur selon la revendication 2, dans laquelle le filament (Fi1) formant l'âme de toron du toron central intérieur (L1) présente un revêtement plus épais que les filaments (Fa1) formant les âmes de torons des torons extérieurs (L2-L7).
  4. Courroie d'ascenseur selon l'une quelconque des revendications 1 à 3, dans laquelle le revêtement des filaments (Fi1, Fa1) formant les âmes de torons est au moins 10 % plus épais que le revêtement des filaments (Fi2-Fi7 ; Fa2-Fa7) entourant les âmes de torons, de préférence plus de 30 % plus épais.
  5. Courroie d'ascenseur selon la revendication 4, dans laquelle le revêtement des filaments formant les âmes de torons est en moyenne plus épais que 2 µm.
  6. Courroie d'ascenseur selon l'une quelconque des revendications 1 à 5, dans laquelle les câbles sont formés comme câbles d'acier et le revêtement est une couche de zinc.
  7. Courroie d'ascenseur selon la revendication 6, dans laquelle la couche de zinc contient d'autres ingrédients d'alliage, de préférence de l'aluminium (AI).
  8. Courroie d'ascenseur selon la revendication 6 ou 7, dans laquelle un alliage de fer-zinc est formé entre la couche de zinc et la surface de filament.
  9. Courroie d'ascenseur selon l'une quelconque des revendications 6 à 8, dans laquelle les supports de traction ou de résistance sont formés comme câbles d'acier sous forme d'une construction 7x7, le toron central intérieur présentant un filament formant l'âme de toron doté d'un revêtement de zinc d'au moins 1,5 µm ainsi que de six filaments, entourant l'âme de toron, dotés d'un revêtement de zinc d'au moins 1 µm, tandis que les six torons situés à l'extérieur présentent à chaque fois un filament formant l'âme de toron doté d'un revêtement de zinc d'au moins 1 µm ainsi que six filaments, entourant l'âme de toron, dotés d'un revêtement de zinc d'au moins 0,5 µm.
  10. Courroie d'ascenseur selon l'une quelconque des revendications 6 à 8, dans laquelle les supports de traction ou de résistance sont formés comme câbles d'acier sous forme d'une construction 7x7, le toron central intérieur présentant un filament formant l'âme de toron doté d'un revêtement de zinc d'au moins 2,5 µm ainsi que de six filaments, entourant l'âme de toron, dotés d'un revêtement de zinc d'au moins 2,0 µm, tandis que les six torons situés à l'extérieur présentent à chaque fois un filament formant l'âme de toron doté d'un revêtement de zinc d'au moins 2,0 µm ainsi que six filaments, entourant l'âme de toron, dotés d'un revêtement de zinc d'au moins 1,0 µm.
EP20793652.7A 2019-11-15 2020-10-19 Câble d'une courroie d'ascenseur ayant des brins formés à partir de filaments ayant différentes épaisseurs de revêtement Revoked EP4058390B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019217625.9A DE102019217625A1 (de) 2019-11-15 2019-11-15 Aufzugsgurt mit Corden aus beschichteten Litzen
PCT/EP2020/079350 WO2021094059A1 (fr) 2019-11-15 2020-10-19 Câble d'une courroie d'ascenseur ayant des brins formés à partir de filaments ayant différentes épaisseurs de revêtement

Publications (2)

Publication Number Publication Date
EP4058390A1 EP4058390A1 (fr) 2022-09-21
EP4058390B1 true EP4058390B1 (fr) 2023-09-13

Family

ID=72964695

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20793652.7A Revoked EP4058390B1 (fr) 2019-11-15 2020-10-19 Câble d'une courroie d'ascenseur ayant des brins formés à partir de filaments ayant différentes épaisseurs de revêtement

Country Status (4)

Country Link
EP (1) EP4058390B1 (fr)
CN (1) CN114728764B (fr)
DE (1) DE102019217625A1 (fr)
WO (1) WO2021094059A1 (fr)

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3330909A1 (de) * 1983-08-24 1985-03-07 Siemens AG, 1000 Berlin und 8000 München Verfahren zur herstellung einer flexiblen elektrischen leitung
DE3336616A1 (de) * 1983-10-05 1985-04-25 Siemens AG, 1000 Berlin und 8000 München Trommelbare, flexible elektrische leitung mit lagenweise verseilten verseilelementen
GEP20022663B (en) * 1997-05-15 2002-03-25 Pirelli Cavi E Sistemi Spa It Cable With Impact-Resistant Coating
AU2001250425A1 (en) * 2000-05-08 2001-11-20 N V. Bekaert S.A. Zinc-coated steel cord with improved fatigue resistance
JP3660259B2 (ja) * 2001-03-19 2005-06-15 東京製綱株式会社 ワイヤロープ
JP3910377B2 (ja) * 2001-04-25 2007-04-25 東京製綱株式会社 ワイヤロープ
WO2003025278A1 (fr) * 2001-09-12 2003-03-27 Hitachi, Ltd. Corde
DE602004022188D1 (de) * 2003-11-03 2009-09-03 Bekaert Sa Nv Feiner stahlkord mit geringer struktureller dehnung
CN101122097B (zh) * 2006-08-11 2011-11-16 因温特奥股份公司 电梯设备的皮带和具有这种皮带的电梯设备
NZ556751A (en) * 2006-08-11 2009-03-31 Inventio Ag Belt for an elevator system and method of manufacturing such a belt
JP5649732B2 (ja) * 2010-08-13 2015-01-07 オーチス エレベータ カンパニーＯｔｉｓ Ｅｌｅｖａｔｏｒ Ｃｏｍｐａｎｙ 保護コーティングを有した荷重支持部材およびその方法
CN104575705A (zh) * 2013-10-12 2015-04-29 宁夏海洋线缆有限公司 一种高导电性电缆
CN105448420A (zh) * 2014-09-26 2016-03-30 江苏东强股份有限公司 1200MHz高频数据电缆
CN204760078U (zh) * 2015-06-24 2015-11-11 上海谦恒电气有限公司 一种便于高速提升的扁形电缆
EP3142127B1 (fr) * 2015-09-11 2017-08-30 MD Elektronik GmbH Cable electrique ayant un fil de masse
DE102015219235A1 (de) * 2015-10-06 2017-04-06 Contitech Antriebssysteme Gmbh Keilrippenriemen
CN105655038B (zh) * 2016-04-08 2017-06-16 长城电缆有限公司 一种防火电缆及其生产工艺
WO2018015173A1 (fr) * 2016-07-19 2018-01-25 Bekaert Advanced Cords Aalter Nv Élément de tension d'ascenseur à gaine d'élastomère de polyuréthane thermoplastique dur
CN106057306A (zh) * 2016-08-17 2016-10-26 上海新时达线缆科技有限公司 电梯用电缆
CN209456788U (zh) * 2018-12-28 2019-10-01 五合兴华通讯设备有限公司 一种耐候防腐型绝缘钢绞线

Also Published As

Publication number Publication date
EP4058390A1 (fr) 2022-09-21
WO2021094059A1 (fr) 2021-05-20
CN114728764A (zh) 2022-07-08
DE102019217625A1 (de) 2021-05-20
CN114728764B (zh) 2024-03-12

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