EP2149535B1 - Method of connecting elevator ropes - Google Patents

Method of connecting elevator ropes Download PDF

Info

Publication number
EP2149535B1
EP2149535B1 EP07744303.4A EP07744303A EP2149535B1 EP 2149535 B1 EP2149535 B1 EP 2149535B1 EP 07744303 A EP07744303 A EP 07744303A EP 2149535 B1 EP2149535 B1 EP 2149535B1
Authority
EP
European Patent Office
Prior art keywords
rope
elevator
outer circumferential
connecting pipe
resin
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.)
Not-in-force
Application number
EP07744303.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2149535A1 (en
EP2149535A4 (en
Inventor
Atsushi Mitsui
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP2149535A1 publication Critical patent/EP2149535A1/en
Publication of EP2149535A4 publication Critical patent/EP2149535A4/en
Application granted granted Critical
Publication of EP2149535B1 publication Critical patent/EP2149535B1/en
Not-in-force 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
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/16—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B7/00—Details of, or auxiliary devices incorporated in, rope- or cable-making machines; Auxiliary apparatus associated with such machines
    • D07B7/16—Auxiliary apparatus
    • D07B7/169—Auxiliary apparatus for interconnecting two cable or rope ends, e.g. by splicing or sewing
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B9/00—Binding or sealing ends, e.g. to prevent unravelling

Definitions

  • the present invention relates to an elevator rope connecting method that connects together elevator ropes on an outer circumferential portion of which is disposed an outer circumferential coated layer that is made of a resin.
  • One method for connecting the new and old ropes is to cut strands of end portions of the new and old ropes by a predetermined length so as to leave a portion of the strands, and then to overlap end portions of the remaining strands with each another, cover them with a metal sleeve, and crimp them (see Patent Literature 1, for example).
  • Another method to connect two rope ends is based on the insertion of the respective end portions of the ropes into a coupling.
  • a cement can be used, for instance (see Patent Literature 2, for example).
  • the present invention aims to solve the above problems and an object of the present invention is to provide an elevator rope connecting method that can easily connect together elevator ropes on an outer circumferential portion of which is disposed an outer circumferential coated layer that is made of a resin.
  • an elevator rope connecting method that includes steps of: inserting an end portion of a first elevator rope into a rope insertion aperture from a first end portion of a connecting pipe that is made of a resin that includes the rope insertion aperture, and also inserting an end portion of a second elevator rope into the rope insertion aperture from a second end portion of the connecting pipe; and welding the end portions of the first and second elevator ropes to the connecting pipe by heating the connecting pipe.
  • an elevator rope connecting method that includes steps of: inserting an end portion of a first elevator rope into a rope insertion aperture from a first end portion of a connecting pipe that is made of a resin that includes the rope insertion aperture, and also inserting an end portion of a second elevator rope into the rope insertion aperture from a second end portion of the connecting pipe; and fixing the end portions of the first and second elevator ropes to the connecting pipe by means of an adhesive.
  • an elevator rope connecting method that includes steps of: accommodating an end portion of a first elevator rope and an end portion of a second elevator rope inside a mold; injecting a melted connecting resin into the mold; and forming a connecting pipe that is made of a resin that covers the end portions of the first and second elevator ropes by hardening the connecting resin inside the mold.
  • Figure 1 is a side elevation that shows a connected portion between first and second elevator ropes that have been connected using a method according to Embodiment 1 of the present invention
  • Figure 2 is a cross section of the first and second elevator ropes from Figure 1
  • Figure 3 is a cross section that is taken along Line III - III in Figure 1
  • Figure 4 is a side elevation that shows a connecting pipe from Figure 1 .
  • a rope insertion aperture 1a is disposed in a connecting pipe 1 that is made of a resin.
  • the rope insertion apertures 1a is divided into first and second rope insertion apertures 1c and 1d that have identical lengths by a partitioning wall 1b that is disposed in an intermediate portion thereof.
  • An end portion of a first elevator rope 2 is inserted inside the first rope insertion aperture 1c from a first end portion of the connecting pipe 1.
  • An end portion of a second elevator rope 3 is inserted inside the second rope insertion aperture 1d from a second end portion of the connecting pipe 1. End surfaces of the first and second elevator ropes 2 and 3 are placed in contact with the partitioning wall 1b so as to face each other on opposite sides of the partitioning wall 1b.
  • the first and second elevator ropes 2 and 3 have similar cross-sectional constructions.
  • the first elevator rope 2 has: a first core rope 4; a first core rope coating layer 5 that is made of a resin that is disposed on an outer circumference of the first core rope 4; a first outer circumferential strand layer 6 that is disposed on an outer circumference of the first core rope coating layer 5; and a first outer circumferential coating layer 7 that is made of a resin that is disposed on an outer circumference of the first outer circumferential strand layer 6.
  • the first outer circumferential coating layer 7 is disposed on an outer circumferential portion of the first elevator rope 2. An end portion of the first outer circumferential coating layer 7 is welded to the connecting pipe 1.
  • the second elevator rope 3 has: a second core rope 8; a second core rope coating layer 9 that is made of a resin that is disposed on an outer circumference of the second core rope 8; a second outer circumferential strand layer 10 that is disposed on an outer circumference of the second core rope coating layer 9; and a second outer circumferential coating layer 11 that is made of a resin that is disposed on an outer circumference of the second outer circumferential strand layer 10.
  • the second outer circumferential coating layer 11 is disposed on an outer circumferential portion of the second elevator rope 3. An end portion of the second outer circumferential coating layer 11 is welded to the connecting pipe 1.
  • the core ropes 4 and 8 have a plurality of core strands. Each of the core strands is configured by twisting together a plurality of steel wires.
  • the outer circumferential strand layers 6 and 10 have a plurality of outer circumferential strands (in this case, eight) that are twisted together on an outer circumference of the core rope coating layer 5 and 9. Each of the outer circumferential strands is configured by twisting together a plurality of steel wires.
  • the outer circumferential strands and the outer circumferential coating layer 7 and 11 may be fixed using an adhesive if required.
  • the end portion of the first elevator rope 2 is inserted inside the first rope insertion aperture 1c from the first end portion of the connecting pipe 1, and the end portion of the second elevator rope 3 is also inserted inside the second rope insertion aperture 1d from the second end portion of the connecting pipe 1.
  • the end portions of the first and second elevator ropes 2 and 3 are welded to the connecting pipe 1 by heating the connecting pipe 1 from outside.
  • At least a portion of the connecting pipe 1 and at least a portion of the first and second outer circumferential coating layers 7 and 11 are melted by heating the connecting pipe 1, and the end portions of the first and second outer circumferential coating layers 7 and 11 are subsequently welded to the connecting pipe 1 by rehardening the melted portion, connecting the first and second elevator ropes 2 and 3 by means of the connecting pipe 1.
  • first and second elevator ropes 2 and 3 are connected and then the first and second elevator ropes 2 and 3 are moved along the installation pathway of the first elevator rope 2.
  • the second elevator rope 3 can thereby be installed while recovering the first elevator rope 2.
  • the elevator ropes 2 and 3 In a method of this kind for connecting the elevator ropes 2 and 3, because it is not necessary to remove the outer circumferential coating layers 7 and 11, or to cut off portions of outer layer strands, etc., the elevator ropes 2 and 3, on outer circumferential portions of which are disposed outer circumferential coated layers 7 and 11 that are made of a resin, can be connected easily.
  • the rope insertion aperture 1a is divided into first and second rope insertion apertures 1c and 1d by the partitioning wall 1b, the amount of insertion of the first and second elevator ropes 2 and 3 into the connecting pipe 1 can easily be made uniform.
  • the strength of the connecting pipe 1 can also be increased by the partitioning wall 1b.
  • the first and second elevator ropes 2 and 3 can be connected more firmly by welding the end surfaces of the first and second elevator ropes 2 and 3 to the partitioning wall 1b.
  • the shape of the connected portion can be formed into a stable shape by placing the connecting pipe 1 in a metal mold and heating it when the first and second elevator ropes 2 and 3 are being welded to the connecting pipe 1.
  • rope latches are normally disposed on the sheaves around which the elevator ropes 2 and 3 are wound. Clearance between top portions of the elevator ropes 2 and 3 and the rope latches when the elevator ropes 2 and 3 are wound onto the sheaves is set to less than or equal to 3 mm. Because of this, it is preferable for a difference between an outside diameter of the connecting pipe 1 and an outside diameter of the first and second elevator ropes 2 and 3 to be set to less than or equal to 3 mm, thereby enabling interference between the connecting pipe 1 and the rope latches to be prevented, and also enabling the connecting pipe 1 to be passed through the sheaves with the rope latches still mounted.
  • Figure 5 is a side elevation that shows a connected portion between first and second elevator ropes that have been connected using a method according to Embodiment 2 of the present invention.
  • a first tapered portion 1e in which an outside diameter reduces gradually toward an end surface is disposed on one end portion of a connecting pipe 1.
  • a second tapered portion 1f in which an outside diameter reduces gradually toward an end surface is disposed on another end portion of the connecting pipe 1.
  • Tapered portions 1e and 1f of this kind may be formed on the connecting pipe 1 in advance, or may also be formed using a metal mold when welding first and second elevator ropes 2 and 3.
  • the rest of the configuration and the connecting method are similar to those of Embodiment 1.
  • the tapered portions 1e and 1f are disposed on two end portions of the connecting pipe 1, but may be disposed on only one end portion of the connecting pipe 1, i.e., on an end that is in front when the first and second elevator ropes 2 and 3 are moved.
  • Figure 6 is a cross section of a connected portion between first and second elevator ropes that have been connected using a method according to Embodiment 3 of the present invention, and corresponds to a cross section that is taken along Line III - III in Figure 1 .
  • the end portions of the first and second elevator ropes 2 and 3 were welded to the connecting pipe 1, but in Embodiment 3, end portions of first and second elevator ropes 2 and 3 are fixed to a connecting pipe 1 by means of an adhesive 12.
  • the rest of the configuration and the connecting method are similar to those of Embodiment 1.
  • the first and second elevator ropes 2 and 3 can also be connected more firmly by adhesively fixing the end surfaces of the first and second elevator ropes 2 and 3 to the partitioning wall 1b.
  • Embodiment 4 of the present invention Construction of a connected portion between first and second elevator ropes 2 and 3 that have been connected by a method according Embodiment 4 is similar to that in Figures 1 or 5 .
  • a preformed connecting pipe 1 was used, but in Embodiment 4, a connecting pipe 1 that covers end portions of first and second elevator ropes 2 and 3 and is welded together with those end portions is formed by accommodating the end portions of the first and second elevator ropes 2 and 3 inside a metal mold, injecting a melted connecting resin into the mold, and then hardening the connecting resin inside the mold.
  • the elevator ropes 2 and 3 on outer circumferential portions of which are disposed outer circumferential coated layers 7 and 11 that are made of a resin, can also be connected easily.
  • first and second elevator ropes 2 and 3 are similar have been shown, but the cross-sectional constructions of the first and second elevator ropes 2 and 3 may differ provided that first and second outer circumferential coating layers 7 and 11 are disposed on outer circumferential portions.
  • the above connecting methods are applied to a replacement operation for a main rope that suspends a car and a counterweight, but can also be applied to cases in which other elevator ropes such as a compensating rope that is suspended between a lower portion of a car and a lower portion of a counterweight, or a speed governor rope, etc., are being connected, for example.
  • a partitioning wall 1b has been disposed inside the rope insertion aperture 1a, but the partitioning wall 1b may also be omitted.

Landscapes

  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
EP07744303.4A 2007-05-29 2007-05-29 Method of connecting elevator ropes Not-in-force EP2149535B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/060883 WO2008149409A1 (ja) 2007-05-29 2007-05-29 エレベータロープの接続方法

Publications (3)

Publication Number Publication Date
EP2149535A1 EP2149535A1 (en) 2010-02-03
EP2149535A4 EP2149535A4 (en) 2013-12-04
EP2149535B1 true EP2149535B1 (en) 2018-03-21

Family

ID=40093246

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07744303.4A Not-in-force EP2149535B1 (en) 2007-05-29 2007-05-29 Method of connecting elevator ropes

Country Status (5)

Country Link
EP (1) EP2149535B1 (ja)
JP (1) JP5089689B2 (ja)
KR (1) KR101082257B1 (ja)
CN (1) CN101641276B (ja)
WO (1) WO2008149409A1 (ja)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103587001A (zh) * 2013-11-09 2014-02-19 陈保鹏 全自动绳子头熔接装置
WO2019060460A1 (en) * 2017-09-20 2019-03-28 Safeworks, Llc SYSTEM, DEVICES AND METHODS FOR CONNECTING ROPES
EP3543194A1 (en) 2018-03-23 2019-09-25 Otis Elevator Company Drive belt for a people conveyor
CN109292601B (zh) * 2018-12-07 2021-05-18 王玉可 一种更换电梯钢丝绳的方法

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2596513A (en) * 1948-08-19 1952-05-13 Tocci-Guilbert Berno Method of forming flexible joints in belting
JPS54116635U (ja) * 1978-01-26 1979-08-15
JPS6094937A (ja) * 1983-10-28 1985-05-28 Agency Of Ind Science & Technol シクロヘキサン環をもつジヒドロキシジカルボン酸及びそのエステル
JPS6094937U (ja) * 1983-11-30 1985-06-28 昭和電線電纜株式会社 プラスチツクワイヤ−接続部
JPS62147904A (ja) * 1985-12-20 1987-07-01 名東電気工事株式会社 線条体の接続部の構造
JPS6392856A (ja) * 1986-10-06 1988-04-23 Meito Denki Koji Kk ロ−プの連結部の構造
JP2767842B2 (ja) * 1988-12-13 1998-06-18 日本鋼管株式会社 ポリオレフィン管の接合方法
JPH0736198Y2 (ja) * 1989-11-24 1995-08-16 沖電気工業株式会社 ストリーマ用整流索ロープ端末引留構造
JPH048994A (ja) * 1990-04-26 1992-01-13 Mitsui Petrochem Ind Ltd エレクトロフュージョン継手
GB2265162B (en) * 1992-03-20 1995-06-14 Bridon Plc Rope splice
JPH08218285A (ja) * 1995-02-10 1996-08-27 Chugoku Marine Paints Ltd 複合型のケーブル被覆管及びその接着方法
JP3764900B2 (ja) 1999-09-09 2006-04-12 三菱電機ビルテクノサービス株式会社 ワイヤロープ接続方法および接続部
CN100393937C (zh) * 2001-09-12 2008-06-11 株式会社日立制作所 绳索
WO2006061888A1 (ja) * 2004-12-08 2006-06-15 Mitsubishi Denki Kabushiki Kaisha エレベータ用ロープ及びエレベータ装置
JP3851922B1 (ja) * 2005-06-28 2006-11-29 住友電工スチールワイヤー株式会社 ビードコードにおける側線ワイヤの接続部材

Non-Patent Citations (1)

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Title
None *

Also Published As

Publication number Publication date
KR101082257B1 (ko) 2011-11-09
EP2149535A1 (en) 2010-02-03
CN101641276A (zh) 2010-02-03
CN101641276B (zh) 2011-05-11
JP5089689B2 (ja) 2012-12-05
JPWO2008149409A1 (ja) 2010-08-19
EP2149535A4 (en) 2013-12-04
WO2008149409A1 (ja) 2008-12-11
KR20100005065A (ko) 2010-01-13

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