EP1582493A1 - Seil für aufzug und aufzugsausrüstung - Google Patents

Seil für aufzug und aufzugsausrüstung Download PDF

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Publication number
EP1582493A1
EP1582493A1 EP02775541A EP02775541A EP1582493A1 EP 1582493 A1 EP1582493 A1 EP 1582493A1 EP 02775541 A EP02775541 A EP 02775541A EP 02775541 A EP02775541 A EP 02775541A EP 1582493 A1 EP1582493 A1 EP 1582493A1
Authority
EP
European Patent Office
Prior art keywords
rope
elevator
inner layer
car
diameter
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.)
Granted
Application number
EP02775541A
Other languages
English (en)
French (fr)
Other versions
EP1582493B1 (de
EP1582493A4 (de
Inventor
Takenobu c/o Mitsubishi Denki Kabushiki K. HONDA
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 EP1582493A1 publication Critical patent/EP1582493A1/de
Publication of EP1582493A4 publication Critical patent/EP1582493A4/de
Application granted granted Critical
Publication of EP1582493B1 publication Critical patent/EP1582493B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • D07B1/165—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics characterised by a plastic or rubber inlay
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/04—Driving gear ; Details thereof, e.g. seals
    • B66B11/08—Driving gear ; Details thereof, e.g. seals with hoisting rope or cable operated by frictional engagement with a winding drum or sheave
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/0035—Arrangement of driving gear, e.g. location or support
    • B66B11/0045—Arrangement of driving gear, e.g. location or support in the hoistway
    • 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
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2071—Spacers
    • D07B2201/2074—Spacers in radial direction

Definitions

  • the present invention relates to an elevator rope used in an elevator to suspend a car, and to an elevator apparatus using that rope.
  • sheaves having a diameter greater than or equal to forty (40) times a diameter of a rope are used in order to prevent early abrasion and wire breakage in the ropes. Consequently, in order to reduce the diameter of the sheaves, it is necessary to also reduce the diameter of the ropes.
  • the present invention aims to solve the above problems and an object of the present invention is to provide an elevator rope enabling reductions in diameter while maintaining high strength, long service life, and high friction, and to provide an elevator apparatus having a compact layout using that rope.
  • an elevator rope including: an inner layer rope having a plurality of inner layer strands in which a plurality of steel wires are twisted together; an inner layer coating body made of resin coated onto an outer periphery of the inner layer rope; and an outer layer having a plurality of outer layer strands in which a plurality of steel wires are twisted together disposed on an outer peripheral portion of the inner layer coating body.
  • an elevator apparatus including: a driving machine having a drive sheave on which a rope groove is disposed; an elevator rope inserted into the rope groove and wound around the drive sheave; and a car and a counterweight suspended inside a hoistway by the elevator rope and raised and lowered by the driving machine, wherein: the elevator rope has an inner layer rope including a plurality of inner layer strands in which a plurality of steel wires are twisted together; an inner layer coating body made of resin coated onto an outer periphery of the inner layer rope; and an outer layer including a plurality of outer layer strands in which a plurality of steel wires are twisted together disposed on an outer peripheral portion of the inner layer coating body; and a surface of the rope groove contacting the elevator rope is composed of a high-friction resin material.
  • FIG 1 is a general front elevation showing an elevator apparatus according to Embodiment 1 of the present invention
  • Figure 2 is a plan showing the elevator apparatus in Figure 1.
  • a supporting platform 32 is secured to an upper portion inside a hoistway 31.
  • a thin driving machine 33 is mounted on the supporting platform 32.
  • the driving machine 33 has: a motor 34; and a drive sheave 35 rotated by the motor 34.
  • the driving machine 33 is disposed horizontally such that a rotating shaft of the drive sheave 35 extends vertically.
  • a plurality of elevator ropes 36 (only one is shown in the figures) are wound around the drive sheave 35.
  • Each of the elevator ropes 36 has a first end portion 36a and a second end portion 36b connected to the supporting platform 32.
  • a car 37 is suspended between the first end portions 36a of the elevator ropes 36 and the drive sheave 35. Apair of car suspension sheaves 38 around which the elevator ropes 36 are wound are disposed on a lower portion of the car 37.
  • a counterweight 39 is suspended between the second end portions 36b of the elevator ropes 36 and the drive sheave 35.
  • a pair of counterweight suspension sheaves 40 around which the elevator ropes 36 are wound are disposed on an upper portion of the counterweight 39.
  • the car 37 and the counterweight 39 are raised and lowered inside the hoistway 31 by the driving machine 33 by means of the elevator ropes 36.
  • a car guide pulley 41 for directing the elevator ropes 36 extending from the drive sheave 35 toward the car 37 is disposed in an upper portion inside the hoistway 31.
  • a counterweight guide pulley 42 for directing the elevator ropes 36 extending from the drive sheave 35 toward the counterweight 39 is also disposed in an upper portion inside the hoistway 31.
  • the driving machine 33, the car guide pulley 41, and the counterweight guide pulley 42 are disposed so as to overlap with the car 37 in a vertical plane of projection. Diameters of the car guide pulley 41 and the counterweight guide pulley 42 are greater than or equal to fifteen (15) times and less than or equal to twenty (20) times a diameter of the elevator ropes 36.
  • a pair of car guide rails 43 for guiding raising and lowering of the car 37 and a pair of counterweight guide rails 44 for guiding raising and lowering of the counterweight 39 are installed inside the hoistway 31. Moreover, the guide rails 43 and 44 are omitted from Figure 1.
  • Figure 3 is a cross section of an elevator rope 36 from Figure 1
  • Figure 4 is a side elevation showing the elevator rope 36 in Figure 3 cut away in layers.
  • an inner layer rope 1 has: a core rope 2; and a plurality of inner layer strands 3 disposed on outer peripheral portions of the core rope 2.
  • the core rope 2 has a plurality of core strands 4.
  • Each of the core strands 4 is constructed by twisting a plurality of steel wires 5 together with each other.
  • the core strands 4 are twisted together with each other, and the inner layer strands 3 are twisted in a reverse direction to the core strands 4.
  • the inner layer strands 3 are constructed by twisting a plurality of steel wires 6 together with each other.
  • the cross-sectional structure of the inner layer strands 3 is warrington (Japanese Industrial Standards (JIS) G 3525).
  • a diameter of the inner layer rope 1 is set to less than or equal to 1/27 of a diameter of the drive sheave 35.
  • An inner layer coating body 7 made of resin is coated onto an outer periphery of the inner layer rope 1.
  • the inner layer coating body 7 is composed of polyethylene resin, for example.
  • An outer layer 8 is disposed on an outer peripheral portion of the inner layer coating body 7.
  • the outer layer 8 has a plurality of outer layer strands 9.
  • Each of the outer layer strands 9 is constituted by: a central wire 10 disposed centrally; and six outer peripheral wires 11 disposed on an outer periphery of the central wire 10.
  • the outer layer strands 9 are twisted in a reverse direction to the inner layer strands 3.
  • Diameters of all of the wires 5, 6, 10, and 11 are set to less than or equal to 1/400 of the diameter of the drive sheave 35.
  • Figure 5 is a front elevation showing a sheave used as a drive sheave 35, a car suspension sheave 38, a counterweight suspension sheave 40, a car guide pulley 41, and a counterweight guide pulley 42 in Figure 1, and Figure 6 is a cross section of a rope groove from Figure 5.
  • rope grooves 45 into which the elevator ropes 36 are inserted are disposed on an outer peripheral portion of the sheave used as a drive sheave 35, a car suspension sheave 38, a counterweight suspension sheave 40, a car guide pulley 41, and a counterweight guide pulley 42.
  • a surface of the rope grooves 45 contacting the elevator ropes 36 is constituted by a high-friction resin material (a resin lining) 46.
  • an inner layer coating body 7 made of resin is disposed between the inner layer rope 1 and the outer layer 8, the inner layer strands 3 and the outer layer strands 9 are prevented from direct contacting and rubbing against each other, enabling deterioration due to abrasion to be prevented and bending stresses to be alleviated by a buffer action, thereby enabling extension of the service life of the elevator ropes 36.
  • the high-friction resin material 46 it is preferable for the high-friction resin material 46 to have a coefficient of friction greater than or equal to 0.2, enabling sufficient transfer efficiency of the driving force to be ensured. Furthermore, provided that the coefficient of friction is greater than or equal to 0.2, the high-friction resin material 46 is not limited to polyurethane, and polyvinyl, etc., can also be used.
  • Soft or hard polyurethane resin can also be selected freely, but in order to ensure abrasion resistance performance against phenomena such as the elevator ropes 36 slipping slightly on the surface of the sheaves 35, 38, 40, 41, and 42, it is preferable to use hard polyurethane resin having a hardness of 85 to 98. In particular, polyurethane resin having a hardness greater than or equal to 90 is most preferable. In order to prevent hydrolysis from occurring in the service environment, it is also desirable that the resin be ether-based rather than ester-based.
  • the high-friction resin material 46 is disposed in the rope grooves 45, processing is facilitated compared to when an outermost circumference of the elevator ropes 36 is coated with a high-friction resin material.
  • flexing resistance can be reduced by selecting as the material for the inner layer coating body 7 a material that slides freely and easily when the elevator ropes 36 are bent at the sheaves 35, 38, 40, 41, and 42. Furthermore, the inner layer coating body 7 requires a hardness that can resist being crushed between the wires 6 of the inner layer strands 3 and between the wires 11 of the outer layer strands 9.
  • a hard, low-friction polyethylene material is suitable as this kind of the material.
  • a resin such as nylon, silicon, polypropylene, or polyvinyl chloride, etc., for example, may also be used as the material for the inner layer coating body 7.
  • the outer layer strands 9 have a simple seven-wire construction including a central wire 10 and six outer peripheral wires 11, the diameter of the elevator ropes 36 can be reduced and disarray can be suppressed.
  • the cross-sectional construction of the inner layer strands 3 is warrington, not seale or filler wire, breakage of the wires 6 due to wear can be prevented without using extremely slender wires 6, enabling extension of service life.
  • the wires 6 can be disposed in a well-balanced manner without strain, enabling wear of the wires 6 to be further prevented.
  • the rotational torque in the interior portions can be balanced, enabling the overall twisting return torque of the rope to be reduced.
  • elevator ropes 36 having high flexibility as described above are wound around sheaves 35, 38, 40, 41, and 42 having a small diameter, there is a risk that contact pressure between the sheaves 35, 38, 40, 41, and 42 and the outer layer strands 9 may increase, considerably advancing wear and tear on the sheaves 35, 38, 40, 41, and 42 and the outer layer strands 9.
  • the car guide pulley 41 and the counterweight guide pulley 42 can be disposed in the space above the car 37 without increasing the height dimensions of the hoistway 31, and it is not necessary to widen the cross sectional area of the hoistway 31.
  • the diameter of the car guide pulley 41 and the counterweight guide pulley 42 is greater than or equal to fifteen (15) times the diameter of the rope in elevator apparatuses not operating frequently, and greater than or equal to twenty (20) times in busy elevator apparatuses to enable sufficient service life to be ensured.
  • the diameter of the guide pulleys 41 and 42 is set within a range of fifteen to twenty (15 to 20) times the diameter of the rope, the height dimensions of the hoistway 31 can be reduced effectively.
  • the diameter of the guide pulleys 41 and 42 is set within a range of the installed height of the driving machine 33, the height dimensions of the hoistway 31 can be reduced even more effectively.
  • FIG. 7 is a cross section of an elevator rope according to Embodiment 2 of the present invention.
  • an inner layer rope 23 has: a core rope 24; and a plurality of inner layer strands 25 disposed on outer peripheral portions of the core rope 24.
  • the core rope 24 has a plurality of core strands 26.
  • Each of the core strands 26 is constructed by twisting a plurality of steel wires 27 together with each other.
  • the inner layer strands 25 are constructed by twisting a plurality of steel wires 28 together with each other.
  • the cross sections of the wires 28 in the inner layer strands 25 are modified by compressing the inner layer strands 25 from an outer periphery.
  • the cross sections of the wires 27 in the core strands 26 are modified by compressing the core strands 26 from an outer periphery. The rest of the construction is similar to that of Embodiment 1.
  • the shape of the cross sections of the wires 10 and 11 in the outer layer strands 9 can also be modified by compressing the outer layer strands 9 from an outer periphery.
  • Figure 8 is a side elevation showing an elevator rope according to Embodiment 3 of the present invention cut away in layers.
  • inner layer strands 3, core strands 4, and outer layer strands 9 are twisted the same direction as each other.
  • the rest of the construction is similar to that of Embodiment 1.
  • the ropes shown in Embodiments 1 to 3 which have multilayered constructions, have characteristics by which the load burden rate of each of the layers is changed by fatigue over time.
  • the strength burden ratio in layers in which damage proceeds preferentially is reduced, although this varies depending on the construction of the ropes.
  • it is preferable to detect abnormalities in a weakest layer by setting the strength of one layer to twenty to eighty percent (20% to 80%) and to change the ropes before the overall strength deteriorates significantly.
  • the sum total strength of the strengths of the outer layer strands 9, which are in the weakest layer where bending stresses are at their greatest is preferable for the sum total strength of the strengths of the outer layer strands 9, which are in the weakest layer where bending stresses are at their greatest, to be set to within twenty percent (20%) of the overall strength of the elevator rope.
  • a residual strength of nearly 80 percent (80%) can be ensured in the inner layer rope 1 alone, enabling reliability to be improved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Ropes Or Cables (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
EP02775541A 2002-11-12 2002-11-12 Seil für aufzug und aufzugsausrüstung Expired - Lifetime EP1582493B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2002/011790 WO2004043844A1 (ja) 2002-11-12 2002-11-12 エレベータ用ロープ及びエレベータ装置

Publications (3)

Publication Number Publication Date
EP1582493A1 true EP1582493A1 (de) 2005-10-05
EP1582493A4 EP1582493A4 (de) 2011-03-30
EP1582493B1 EP1582493B1 (de) 2013-02-20

Family

ID=32310254

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02775541A Expired - Lifetime EP1582493B1 (de) 2002-11-12 2002-11-12 Seil für aufzug und aufzugsausrüstung

Country Status (5)

Country Link
EP (1) EP1582493B1 (de)
JP (1) JP4296152B2 (de)
KR (1) KR20040071180A (de)
CN (1) CN100439227C (de)
WO (1) WO2004043844A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
EP2082983A1 (de) * 2008-01-28 2009-07-29 ThyssenKrupp Aufzugswerke GmbH Aufzugsanlage
US9976251B2 (en) 2013-01-14 2018-05-22 Actuant Corporation Rope having a low-friction strand

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008023434A1 (fr) * 2006-08-25 2008-02-28 Mitsubishi Electric Corporation Câble d'ascenseur
US20100243378A1 (en) 2007-10-17 2010-09-30 Guntram Begle Elevator having a suspension
JP5281883B2 (ja) * 2008-03-07 2013-09-04 株式会社日立製作所 エレベータ用ロープおよびエレベータ用ベルト
WO2009125473A1 (ja) * 2008-04-08 2009-10-15 三菱電機株式会社 エレベータ装置及びその試験方法
JP4595011B2 (ja) * 2008-10-31 2010-12-08 三菱電機ビルテクノサービス株式会社 既設エレベータの改修方法及びエレベータ装置
FI125113B (fi) 2010-04-30 2015-06-15 Kone Corp Hissi
JP5976116B2 (ja) * 2012-08-29 2016-08-23 三菱電機株式会社 エレベータ用ロープ及びそれを用いたエレベータ装置
KR101601894B1 (ko) * 2014-06-19 2016-03-09 고려제강 주식회사 엘리베이터용 로프 및 이의 제조방법
CN104894901A (zh) * 2015-05-29 2015-09-09 柳州普亚贸易有限公司 柔性钢丝绳
KR102168962B1 (ko) 2016-10-18 2020-10-23 미쓰비시덴키 가부시키가이샤 엘리베이터용 로프 및 엘리베이터 장치
CN107780267A (zh) * 2017-11-20 2018-03-09 江苏赛福天钢索股份有限公司 一种超高速电梯用钢丝绳
KR20230056776A (ko) * 2020-10-20 2023-04-27 미쓰비시덴키 가부시키가이샤 고강도 섬유 집합체, 로프, 로프 구조체

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4434873A (en) * 1981-04-09 1984-03-06 Mitsubishi Denki Kabushiki Kaisha Electric elevator car driving device
JPH03249288A (ja) * 1990-02-27 1991-11-07 Tokyo Seiko Co Ltd 動索用ワイヤロープ
JPH0710478A (ja) * 1993-06-29 1995-01-13 Tokyo Seiko Co Ltd 高強度ワイヤロープ
JPH1018190A (ja) * 1996-07-04 1998-01-20 Tokyo Seiko Co Ltd ワイヤロープ
WO2002030801A1 (fr) * 2000-10-10 2002-04-18 Mitsubishi Denki Kabushiki Kaisha Dispositif d'ascenseurs
WO2003000581A1 (en) * 2001-06-21 2003-01-03 Kone Corporation Elevator

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56149975A (en) * 1980-04-24 1981-11-20 Tokyo Shibaura Electric Co Sieve for elevator
JPS594589A (ja) * 1982-06-28 1984-01-11 株式会社日立製作所 駆動用シ−ブ
JP2674782B2 (ja) * 1988-06-07 1997-11-12 豊興工業株式会社 弁装置
DE69908908T2 (de) * 1998-02-26 2004-05-19 Otis Elevator Co., Farmington Maschinenraumloses aufzugssystem mit aufzugsantrieb im aufzugskabine
FI109468B (fi) * 1998-11-05 2002-08-15 Kone Corp Vetopyörähissi
JP4191333B2 (ja) * 1999-08-26 2008-12-03 三菱電機株式会社 エレベーター巻上機

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4434873A (en) * 1981-04-09 1984-03-06 Mitsubishi Denki Kabushiki Kaisha Electric elevator car driving device
JPH03249288A (ja) * 1990-02-27 1991-11-07 Tokyo Seiko Co Ltd 動索用ワイヤロープ
JPH0710478A (ja) * 1993-06-29 1995-01-13 Tokyo Seiko Co Ltd 高強度ワイヤロープ
JPH1018190A (ja) * 1996-07-04 1998-01-20 Tokyo Seiko Co Ltd ワイヤロープ
WO2002030801A1 (fr) * 2000-10-10 2002-04-18 Mitsubishi Denki Kabushiki Kaisha Dispositif d'ascenseurs
WO2003000581A1 (en) * 2001-06-21 2003-01-03 Kone Corporation Elevator

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2004043844A1 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
EP1820765A4 (de) * 2004-12-08 2011-12-28 Mitsubishi Electric Corp Seil für aufzug und aufzug
EP2082983A1 (de) * 2008-01-28 2009-07-29 ThyssenKrupp Aufzugswerke GmbH Aufzugsanlage
WO2009095192A2 (de) * 2008-01-28 2009-08-06 Thyssenkrupp Aufzugswerke Gmbh Aufzuganlage
WO2009095192A3 (de) * 2008-01-28 2009-10-15 Thyssenkrupp Aufzugswerke Gmbh Aufzuganlage
RU2504512C2 (ru) * 2008-01-28 2014-01-20 Тиссенкрупп Ауфзугсверке Гмбх Лифтовая система и способ ее установки и модификации
US9976251B2 (en) 2013-01-14 2018-05-22 Actuant Corporation Rope having a low-friction strand
US10227727B2 (en) 2013-01-14 2019-03-12 Actuant Corporation Rope having a low-friction strand

Also Published As

Publication number Publication date
EP1582493B1 (de) 2013-02-20
KR20040071180A (ko) 2004-08-11
JPWO2004043844A1 (ja) 2006-03-09
CN1585721A (zh) 2005-02-23
CN100439227C (zh) 2008-12-03
EP1582493A4 (de) 2011-03-30
JP4296152B2 (ja) 2009-07-15
WO2004043844A1 (ja) 2004-05-27

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