EP1312574B1 - Synthetic fiber rope for elevators - Google Patents

Synthetic fiber rope for elevators Download PDF

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Publication number
EP1312574B1
EP1312574B1 EP00954956A EP00954956A EP1312574B1 EP 1312574 B1 EP1312574 B1 EP 1312574B1 EP 00954956 A EP00954956 A EP 00954956A EP 00954956 A EP00954956 A EP 00954956A EP 1312574 B1 EP1312574 B1 EP 1312574B1
Authority
EP
European Patent Office
Prior art keywords
synthetic fiber
fiber rope
strands
rope
outer sheath
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.)
Expired - Lifetime
Application number
EP00954956A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1312574A1 (en
EP1312574A4 (en
Inventor
Atsushi Mitsubishi Denki K.K. 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 EP1312574A1 publication Critical patent/EP1312574A1/en
Publication of EP1312574A4 publication Critical patent/EP1312574A4/en
Application granted granted Critical
Publication of EP1312574B1 publication Critical patent/EP1312574B1/en
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
    • 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
    • D07B1/162—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics characterised by a plastic or rubber enveloping sheathing
    • 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
    • D07B1/14—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable
    • D07B1/145—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable comprising elements for indicating or detecting the rope or cable status
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/14—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable
    • D07B1/148—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable comprising marks or luminous elements
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/10—Rope or cable structures
    • D07B2201/1004—General structure or appearance
    • 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
    • D07B2201/2083—Jackets or coverings
    • D07B2201/2087—Jackets or coverings being of the coated type
    • 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
    • D07B2201/2083—Jackets or coverings
    • D07B2201/2092—Jackets or coverings characterised by the materials used
    • 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
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B5/00—Making ropes or cables from special materials or of particular form
    • D07B5/005—Making ropes or cables from special materials or of particular form characterised by their outer shape or surface properties
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B5/00—Making ropes or cables from special materials or of particular form
    • D07B5/005—Making ropes or cables from special materials or of particular form characterised by their outer shape or surface properties
    • D07B5/006—Making ropes or cables from special materials or of particular form characterised by their outer shape or surface properties by the properties of an outer surface polymeric coating

Definitions

  • the present invention relates to a synthetic fiber rope which is coiled around a sheave to suspend a vertically-movable member and which is actuated by means of rotation of a sheave to vertically move the vertically-movable member.
  • a wire rope that is, a steel rope, has hitherto been used as a main cable for suspending an elevator car.
  • a rescue operation is performed for rescuing passengers confined in the car after determination of a location in a shaft where the car has accidentally stopped.
  • indices corresponding to car positions in the shaft are marked on the main cable in advance.
  • the position of an accidentally-stopped car is specified by way of an index assigned to the main cable when accidental stoppage of an elevator system has arisen. For instance, a car is located in a position between the fifth and sixth floors, and then passengers are rescued.
  • the present invention aims at obtaining a synthetic fiber rope for use with an elevator, in which indices attached to a main cable can be readily identified even after the main cable has been installed.
  • US Patent US 5,566,786 discloses a cable as suspension means for lifts.
  • a synthetic fiber cable is connected with an elevator car or load-receiving means, with a sheathing, surrounding an outermost cable strand layer, consisting of synthetic material, preferably polyurethane, with the cable strands being twisted or laid up of individual aramide fibers, wherein each individual strand is treated with an impregnating medium for the protection of the fibers and a friction-reducing intermediate sheathing is interposed between the outer most strand layer and the inner strand layer, and in order to obtain an almost circularly shaped strand layer and increase the degree of filling of the strands, any gaps therein are augmented by filler strands.
  • a synthetic fiber rope for use with an elevator comprising: rope cores; a plurality of strands provided along an outer circumference of the rope cores, each strand being made by means of twisting a plurality of flexible synthetic fibers; and an outer sheath layer which is made of flexible synthetic resin, is formed along an outer circumference of the strands, and has adjacent segments in the longitudinal direction of the fiber rope of predetermined lengths in different colors.
  • the position of a car in a shaft is assigned to one of the colored segments in the outer sheath layer beforehand.
  • the outer sheath layer is made of synthetic resin, the layer can be readily colored during a manufacturing process. Even after an elevator system has been used for a long period of time, there can be prevented difficulty in identifying indices, which would otherwise be caused by wear of the outer sheath layer.
  • the outer sheath layer may be made in a color different from that of the strands, thereby facilitating and enabling appropriate determination of the wear state of the outer sheath layer. Because of this, the efficiency of maintenance and inspection of the main cable of the elevator system can be improved.
  • a layer of paint differing in color from the outer sheath layer may be formed on the surfaces of the strands.
  • a coating layer differing in color from the outer sheath layer may be formed on the surfaces of the strands.
  • the layer of paint may be embodied as a layer of fluorescent paint.
  • reference numeral 1 designates rope cores provided in the center of a transverse cross section of a synthetic fiber rope.
  • Each of the rope cores is made from a plurality of strands, each strand being made by braiding a plurality of synthetic fibers.
  • Reference numeral 2 designates a plurality of strands provided along an outer circumference of the rope cores 1, and each of the strands 2 is made by braiding a plurality of flexible synthetic fibers.
  • Reference numeral 3 designates an outer sheath layer which is made of flexible synthetic resin so as to cover the outer circumference of the strands 2.
  • Segments of predetermined lengths which differ in colors from these of other adjacent segments are formed even in other longitudinal locations in the outer sheath layer 3.
  • the outer sheath layer 3 is formed in a color different from that of the strands 2.
  • the strands 2 are made of synthetic fibers
  • the outer sheath layer 3 is made of flexible synthetic resin.
  • the strands 2 and the outer sheath layer 3 can be readily painted in appropriate colors.
  • the position of a car (not shown) in a shaft (not shown) is assigned to one of the colored segments in the outer sheath layer beforehand. This realizes a function equal to that of the indices marked on the synthetic fiber rope.
  • This structure prevents occurrence of difficulty in identifying indices, which would otherwise be caused by stains when an elevator has been used for a long period of time or a like reason. Consequently, there can be appropriately addressed an operation for rescuing passengers in an accidentally-stopped elevator car, thereby speeding the rescue operation.
  • the colored segments enable easy determination of the extent of elongation of a synthetic fiber rope due to aging.
  • the efficiency of maintenance and inspection of the main cable of the elevator system can be improved.
  • the outer sheath layer 3 is formed in a color different from that of the strands 2, a wear state of the outer sheath 3 can be readily and appropriately determined. For this reason, the efficiency of maintenance and inspection of the main cable of the elevator system can be improved.
  • a coating layer is formed on the surface of each of the strands 2 by means of impregnation of paint.
  • the paint of the strands 2 is transferred to the sheave (not shown) around which the synthetic fiber rope is wound.
  • Such a structure enables appropriate determination of wear of the outer sheath layer 3 at the time of periodic inspection of an elevator system, by means of merely observing whether or not the paint of the strands 2 has been transferred to the sheave, without involvement of visual inspection of the entire synthetic fiber rope so as to determine whether or not the strands 2 become exposed in any location of the rope.
  • maintenance and inspection of the elevator system can be improved.
  • the coating layer to be formed on the surface of the strands 2 is preferably a layer of fluorescent paint. If a layer of fluorescent paint is formed on the surfaces of strands, the paint is easily acknowledged by an inspection worker by means of a fluorescent characteristic. If the paint of the coating layer has been transferred onto a sheave, the paint can be readily detected. Moreover, the fluorescent paint that has been transferred onto the sheave is less prone to disappear. Even if a slight delay has arisen in the time of routine inspection, the paint can be detected readily.
  • a synthetic fiber rope for use with an elevator comprises a plurality of strands provided along an outer circumference of a main cable constituted of the synthetic fiber rope, and an outer sheath layer provided so as to cover each of the strands, wherein adjacent segments of predetermined lengths are formed in different colors in the outer sheath layer.
  • the position of a car in a shaft is assigned to one of the colored segments in the outer sheath layer beforehand. This realizes a function equal to that of the indices marked on the synthetic fiber rope.
  • the rope is useful as a synthetic fiber rope for use with an elevator which is wound around a sheave and suspends a vertically-movable member and is suitable for actuation by means of rotation of the sheave, to thereby vertically move the vertically-movable member.
  • the outer sheath layer may be made in a color different from that of the strands, thereby facilitating and enabling appropriate determination of the wear state of the outer sheath layer.
  • the rope is useful as a synthetic fiber rope for use with an elevator which is wound around a sheave and suspends a vertically-movable member and is suitable for actuation by means of rotation of the sheave, to thereby vertically move the vertically-movable member.

Landscapes

  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Ropes Or Cables (AREA)
EP00954956A 2000-08-24 2000-08-24 Synthetic fiber rope for elevators Expired - Lifetime EP1312574B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2000/005671 WO2002016249A1 (fr) 2000-08-24 2000-08-24 Filin en fibre synthetique pour ascenseurs

Publications (3)

Publication Number Publication Date
EP1312574A1 EP1312574A1 (en) 2003-05-21
EP1312574A4 EP1312574A4 (en) 2007-01-10
EP1312574B1 true EP1312574B1 (en) 2012-03-07

Family

ID=11736388

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00954956A Expired - Lifetime EP1312574B1 (en) 2000-08-24 2000-08-24 Synthetic fiber rope for elevators

Country Status (5)

Country Link
EP (1) EP1312574B1 (zh)
JP (1) JP4640907B2 (zh)
KR (1) KR100479152B1 (zh)
CN (1) CN1184132C (zh)
WO (1) WO2002016249A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11866300B2 (en) 2016-12-02 2024-01-09 Otis Elevator Company Overbraided non-metallic tension members

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA200308847B (en) * 2002-12-04 2005-01-26 Inventio Ag Reinforced synthetic cable for lifts
SG129351A1 (en) * 2005-07-22 2007-02-26 Inventio Ag Lift installation with a support means end connection and a support means, and a method of fasteningan end of a support means in a lift installation
CN101372814B (zh) * 2007-08-24 2012-10-03 上海三菱电梯有限公司 电梯装置的缆索及电梯装置
CN101387082B (zh) * 2007-09-14 2012-10-03 上海三菱电梯有限公司 电梯的受力构件及电梯装置
US8822696B2 (en) * 2009-10-07 2014-09-02 National University Corporation Nagoya University Ligand for asymmetric synthesis catalyst, and process for production of alpha-alkenyl cyclic compound using the same
DE202009014031U1 (de) * 2009-10-16 2009-12-24 Manitowoc Crane Group France Sas Synthetikseil als Tragemittel für Krane und andere Hebezeuge
CN102958822B (zh) * 2010-07-07 2015-03-11 三菱电机株式会社 电梯用绳索
CN102491151A (zh) * 2011-12-16 2012-06-13 苏州市东沪电缆有限公司 一种假随行电梯电缆组件
WO2013091695A1 (en) 2011-12-21 2013-06-27 Kone Corporation Elevator
FI124543B (en) 2012-12-30 2014-10-15 Kone Corp Rope clamp assembly and elevator
CN104653705A (zh) * 2015-02-26 2015-05-27 吕虎松 一种用于电梯提升和牵引的化学纤维复合带
CN104616763A (zh) * 2015-02-26 2015-05-13 吕虎松 一种含有钢丝绳骨架具备提升牵引功能的复合带电缆
CN104649097A (zh) * 2015-02-26 2015-05-27 吕虎松 一种用于电梯中轿厢提升和牵引的传动构件
JP6417362B2 (ja) * 2016-05-30 2018-11-07 株式会社テザックワイヤロープ 動索用ワイヤロープ
US11001474B2 (en) * 2018-01-15 2021-05-11 Otis Elevator Company Wear detection of elevator belt
CN109295780A (zh) * 2018-09-17 2019-02-01 江苏普乐菲塑料有限公司 一种高韧性的pp塑料绳
US20200122975A1 (en) * 2018-10-19 2020-04-23 Otis Elevator Company Elevator system tension member surface anomoly detection
CN112173898A (zh) * 2020-10-10 2021-01-05 浙江树人学院（浙江树人大学） 一种电梯互联网智能控制系统

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FR1350113A (fr) * 1962-12-13 1964-01-24 Filin à couleurs multiples
AT340473B (de) * 1973-09-06 1977-12-12 Neth Anton Dr Techn Verfahren zum feststellen von drahtbruchen oder locker gewordenen drahten bzw. litzen in drahtseilen
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US4624097A (en) * 1984-03-23 1986-11-25 Greening Donald Co. Ltd. Rope
JPH027585Y2 (zh) * 1984-11-01 1990-02-22
JP3067277B2 (ja) * 1991-06-24 2000-07-17 日立電線株式会社 光ファイバ気送用チューブのつぶれ位置検出方法
JPH074487U (ja) * 1993-06-23 1995-01-24 株式会社椿本チエイン ベルト式ホイストのベルトの送り出し巻き上げ制御装置
MXPA95001137A (es) * 1994-03-02 2004-02-16 Inventio Ag Cable como medio de suspension para un elevador.
CA2169431C (en) * 1995-03-06 2005-07-12 Claudio De Angelis Equipment for recognising when synthetic fibre cables are ripe for being discarded
US5881843A (en) * 1996-10-15 1999-03-16 Otis Elevator Company Synthetic non-metallic rope for an elevator
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11866300B2 (en) 2016-12-02 2024-01-09 Otis Elevator Company Overbraided non-metallic tension members

Also Published As

Publication number Publication date
WO2002016249A1 (fr) 2002-02-28
KR20020037373A (ko) 2002-05-18
CN1376133A (zh) 2002-10-23
CN1184132C (zh) 2005-01-12
KR100479152B1 (ko) 2005-03-28
JP4640907B2 (ja) 2011-03-02
EP1312574A1 (en) 2003-05-21
EP1312574A4 (en) 2007-01-10

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