WO2004029343A1 - Elevator belt assembly with prestretched synthetic cords - Google Patents
Elevator belt assembly with prestretched synthetic cords Download PDFInfo
- Publication number
- WO2004029343A1 WO2004029343A1 PCT/US2002/030394 US0230394W WO2004029343A1 WO 2004029343 A1 WO2004029343 A1 WO 2004029343A1 US 0230394 W US0230394 W US 0230394W WO 2004029343 A1 WO2004029343 A1 WO 2004029343A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cords
- jacket
- assembly
- belt assembly
- stretched
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/02—Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics
- D07B1/025—Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics comprising high modulus, or high tenacity, polymer filaments or fibres, e.g. liquid-crystal polymers
-
- 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
- D02G3/447—Yarns or threads for specific use in general industrial applications, e.g. as filters or reinforcement
-
- 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
-
- 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
- D07B7/02—Machine details; Auxiliary devices
- D07B7/14—Machine details; Auxiliary devices for coating or wrapping ropes, cables, or component strands thereof
- D07B7/145—Coating or filling-up interstices
-
- 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
- D07B2201/2083—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
- D07B2205/00—Rope or cable materials
- D07B2205/20—Organic high polymers
- D07B2205/201—Polyolefins
- D07B2205/2014—High performance polyolefins, e.g. Dyneema or Spectra
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2205/00—Rope or cable materials
- D07B2205/20—Organic high polymers
- D07B2205/2039—Polyesters
- D07B2205/2042—High performance polyesters, e.g. Vectran
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2205/00—Rope or cable materials
- D07B2205/20—Organic high polymers
- D07B2205/2046—Polyamides, e.g. nylons
- D07B2205/205—Aramides
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2205/00—Rope or cable materials
- D07B2205/20—Organic high polymers
- D07B2205/2064—Polyurethane resins
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2205/00—Rope or cable materials
- D07B2205/20—Organic high polymers
- D07B2205/2096—Poly-p-phenylenebenzo-bisoxazole [PBO]
-
- 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
- D07B2401/2005—Elongation or elasticity
- D07B2401/201—Elongation or elasticity regarding structural elongation
-
- 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
- D07B2401/205—Avoiding relative movement of components
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249924—Noninterengaged fiber-containing paper-free web or sheet which is not of specified porosity
- Y10T428/249933—Fiber embedded in or on the surface of a natural or synthetic rubber matrix
- Y10T428/249934—Fibers are aligned substantially parallel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249924—Noninterengaged fiber-containing paper-free web or sheet which is not of specified porosity
- Y10T428/24994—Fiber embedded in or on the surface of a polymeric matrix
- Y10T428/249942—Fibers are aligned substantially parallel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249924—Noninterengaged fiber-containing paper-free web or sheet which is not of specified porosity
- Y10T428/24994—Fiber embedded in or on the surface of a polymeric matrix
- Y10T428/249942—Fibers are aligned substantially parallel
- Y10T428/249947—Polymeric fiber
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2933—Coated or with bond, impregnation or core
Definitions
- This invention generally relates to load bearing members for use in elevator systems. More particularly, this invention relates to an elevator belt assembly having a prestretched polymer cords encased in a polyurethane material.
- Elevator systems typically include a cab and counterweight that move within a hoistway to transport passengers or cargo to different landings within a building, for example.
- a load bearing member such as roping or a belt typically moves over a set of sheaves and supports the load of the cab and counterweight.
- load bearing member such as roping or a belt typically moves over a set of sheaves and supports the load of the cab and counterweight.
- the traditional load bearing member has been a steel rope. While this arrangement has proven useful, those skilled in the art are always striving to make improvements.
- Lighter weight and greater strength are two example load bearing assembly characteristics that are highly desirable. Larger buildings, for example require elevators that travel greater distances, which increases the required length of the load bearing assembly. Lighter weight alternatives would improve the economies associated with elevator systems in
- This invention provides a solution to making a load bearing assembly, which has polymer material cords instead of steel, that is able to satisfy strength and stretch requirements.
- this invention is an elevator belt assembly that has prestretched synthetic material cords encased in a jacket that keeps the cords in a stretched condition.
- the inventive arrangement provides a belt assembly that has minimal elastic or construction stretch.
- the cords are pre-stretched using tension that is approximately 10% of the cord breaking strength.
- a method according to this invention for making an elevator belt assembly includes aligning a plurality of synthetic material cords in a selected arrangement.
- Each of the cords are tensioned to pre-stretch the cords.
- the stretched cords are coated with a jacket so that the resulting belt assembly has cords already stretched a selected amount.
- Figure 1 schematically illustrates a portion of an example belt assembly designed according to this invention.
- Figure 2 is a cross-sectional illustration taken along the lines 2-2 in Figure 1.
- Figure 3 is a schematic illustration of method of making a belt assembly designed according to an embodiment of this invention.
- Figures 1 and 2 schematically illustrate a portion of a belt assembly 40 that is designed for use in an elevator system.
- a plurality of cords 42 are aligned generally parallel to a longitudinal axis of the belt assembly 40.
- the cords 42 are prestretched a desired amount during the belt assembly process so that the inventive arrangement provides a belt assembly that has little or no elastic stretch or construction stretch when the belt is subjected to operating loads once installed in an elevator system.
- a flat belt assembly having rounded cords is illustrated as an example in
- the cords 42 preferably comprise a synthetic (most preferably a polymer) material.
- Example materials include PBO, which is sold under the trade name Zylon; liquid crystal polymers such as a polyester-polyarylate, which is sold under the trade name Vectran; p-type aramids such as those sold under the trade names Kevlar, Technora and Twaron; or an ultra-high molecular weight polyethylene, an example of which is sold under the trade name Spectra; and nylon.
- PBO which is sold under the trade name Zylon
- liquid crystal polymers such as a polyester-polyarylate, which is sold under the trade name Vectran
- p-type aramids such as those sold under the trade names Kevlar, Technora and Twaron
- an ultra-high molecular weight polyethylene an example of which is sold under the trade name Spectra
- nylon an ultra-high molecular weight polyethylene
- a jacket 44 covers over the cords 42.
- the jacket 44 preferably comprises a polyurethane-based material that is not compressible when cured.
- a polyurethane-based material that is not compressible when cured.
- the preferred urethane material is an ether based polyurethane.
- an MDI ether based material is preferred for one particular embodiment of this invention.
- the jacket material preferably is substantially not compressible when cured and has characteristics that render the belt assembly useful over long periods of time within an elevator system.
- the friction characteristics of the jacket material preferably are controlled precisely. In one example, a friction co-efficient value of 0.2 relative to the material of the traction sheave is the minimum preferred coefficient. Having sufficient jacket friction characteristics ensures proper traction during operation of the elevator system.
- the jacket material preferably has a high wear resistance and is resistant to cuts or tears so that abrasion of the belt assembly does not readily occur over the lifetime of the assembly. It is recognized that abrasion to the jacket contributes to induced vibrations and premature belt replacement and, therefore, a sufficient cut resistance or tear resistance is desired.
- An additional desired characteristic of the jacket material is to have an adequate tensile strength to carry the load between the cords 42 and the sheaves within the elevator system. Because the jacket material contacts the sheaves, the load upon the cords must be accommodated between the cords and the sheaves by the jacket material.
- the compression set characteristic of the jacket material impacts ride quality.
- the compression set preferably is about 40%.
- jacket material Another characteristic of the jacket material that is preferred is a high hydrolysis resistance to avoid degradation of the jacket, which may otherwise occur because of the relatively high temperatures and relatively high humidity levels commonly experienced within an elevator hoistway.
- the material also preferably will not be adversely affected by other contaminants, such as lubricants, that may be encountered in some hoistways. It is also desirable to select a material so that ultraviolet radiation resistance is maximized.
- the following chart summarizes desired characteristics of the jacket material in one example assembly designed according to this invention.
- FIG. 3 schematically illustrates a method of making a belt assembly 40 designed according to this invention.
- a cord supply 50 provides the cords 42. h one example, each cord is pre-made and wound upon an individual spool.
- An example belt assembly includes twelve individual polymer cords.
- a positioning device 52 aligns the cords 42 in a desired alignment so that the cords will extend parallel to a longitudinal axis of the belt assembly 40.
- the cords are stretched using a load that is selected to correspond to a desired percentage of the breaking strength of the cords.
- the inventive approach includes applying a load that exceeds the anticipated loads when the belt assembly is placed in service in an elevator system, hi one example, the cords are prestretched using a load that is at least approximately 10% of the breaking strength of the cords.
- the tension pre- stretching the cords at the 10% of the breaking strength level is selected in this example because elevator safety codes require safety factors typically in the range from 10:1 up to 12:1.
- Pre-stretching the cords at the 10% level results in belts with little or no elastic stretch and no construction stretch, hi other words, the belt design typically allows for up to a 10% stretch so that the belt design meets safety codes.
- pre-stretching at the 10% level when the belt is placed in service after being installed in an elevator system, there is essentially no stretch during system operation.
- a tensioning device 54 applies the stretching load and controls an amount of tension on the cords 42 during the manufacturing process.
- a single tension station 54 is schematically illustrated, multiple tension devices may be used along the assembly line of the belt assembly 40.
- the same tension preferably is applied to the cords on both sides of a jacket application station 56.
- the tension station 54 preferably includes a suitably programmed controller that monitors and controls the tension within a desired range to pre-stretch the cord.
- tension feedback devices (as known in the art) preferably are incorporated into the manufacturing equipment so that the tension on each individual cord can be monitored and adjusted as needed throughout the entire assembly process.
- the jacket application station 56 preferably includes a suitable mold or other device for applying the jacket material onto the cords 42.
- a supply 58 provides the chosen material to the jacket application station 56 in a conventional manner.
- the jacket material may be pressure molded, extruded or otherwise applied to the cords 42.
- the preloaded cords 42 are bonded to the jacket and covered in the urethane material in a manner that prevents any relaxation or unloading of the cords from the prestretched condition.
- rollers 59 are included as part of or immediately after the jacket application station 56.
- the rollers 59 preferably are Teflon coated.
- the rollers 59 provide a surface treatment to the belt assembly immediately after the application of the jacket material.
- the rollers 59 may provide an embossed pattern on the jacket surfaces, for example.
- the rollers 59 facilitate dimensional control of the jacket exterior.
- the formed belt assembly 40 preferably is then processed at a finishing station 60.
- the finishing station 60 includes a forming device, a dimensional inspection device and a curing cold water bath where the jacket material and the cords within the material are cooled to a suitable temperature. Once cured, the jacket 44 maintains the cords 42 in the prestretched condition.
- the inventive belt assembly has cords that are already stretched before the belt assembly is installed in an elevator system.
- the inventive belt assembly experiences little if any elastic or construction stretch.
- the tolerances for how much stretch, if any, is desired for a given situation can be controlled by controlling the load applied to stretch the cords during assembly, for example. Given the selected materials and the particular requirements of a situation, those skilled in the art who have the benefit of this description will be able to control the m-uiufacturing parameters necessary to achieve a desired level of stretch resistance in a finished belt assembly designed according to this invention.
- the resulting belt assembly 40 preferably is then stored at 62, for example on spools for shipment to various locations for installation in elevator systems.
- the belt assembly 40 may be precut to specific lengths or may be provided in larger quantities where a technician at the installation selects the appropriate amount of belt material for a particular application.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Ropes Or Cables (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2002337687A AU2002337687A1 (en) | 2002-09-25 | 2002-09-25 | Elevator belt assembly with prestretched synthetic cords |
PCT/US2002/030394 WO2004029343A1 (en) | 2002-09-25 | 2002-09-25 | Elevator belt assembly with prestretched synthetic cords |
CN028296656A CN1668793B (en) | 2002-09-25 | 2002-09-25 | Elevator belt assembly with pre-stretched synthetic cords |
US10/522,191 US8100796B2 (en) | 2002-09-25 | 2002-09-25 | Elevator belt assembly with prestretched cords |
DE2002197799 DE10297799T5 (en) | 2002-09-25 | 2002-09-25 | Elevator belt assembly with pre-stretched strands of synthetic material |
JP2004539740A JP2006500303A (en) | 2002-09-25 | 2002-09-25 | Elevator belt assembly with pre-stretched composite cord |
HK06103193A HK1083230A1 (en) | 2002-09-25 | 2006-03-13 | Elevator belt assembly with prestretched synthetic cords |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US2002/030394 WO2004029343A1 (en) | 2002-09-25 | 2002-09-25 | Elevator belt assembly with prestretched synthetic cords |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004029343A1 true WO2004029343A1 (en) | 2004-04-08 |
Family
ID=32041245
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2002/030394 WO2004029343A1 (en) | 2002-09-25 | 2002-09-25 | Elevator belt assembly with prestretched synthetic cords |
Country Status (7)
Country | Link |
---|---|
US (1) | US8100796B2 (en) |
JP (1) | JP2006500303A (en) |
CN (1) | CN1668793B (en) |
AU (1) | AU2002337687A1 (en) |
DE (1) | DE10297799T5 (en) |
HK (1) | HK1083230A1 (en) |
WO (1) | WO2004029343A1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1725375A2 (en) * | 2004-03-15 | 2006-11-29 | Otis Elevator Company | Elevator load bearing member having a jacket with at least one rough exterior surface |
EP1975111A1 (en) * | 2007-03-28 | 2008-10-01 | Inventio Ag | Lift belt, manufacturing method for such a lift belt and lift system with such a belt |
WO2012107042A2 (en) * | 2011-02-12 | 2012-08-16 | Casar Drahtseilwerk Saar Gmbh | Method for producing a strand or cable |
WO2014076370A1 (en) * | 2012-11-16 | 2014-05-22 | Kone Corporation | Elevator, and improvement for reducing elongation of the roping or belting of the elevator in a loading situation of the car of the elevator, and the use of pretensioning for bracing the roping or belting of the elevator |
WO2016037207A3 (en) * | 2014-09-11 | 2016-04-28 | Teufelberger Holding Aktiengesellschaft | Fiber rope |
US9617118B2 (en) | 2010-05-13 | 2017-04-11 | Otis Elevator Company | Elevator suspension and/or driving assembly having at least one traction surface defined by weave fibers |
WO2017068054A1 (en) | 2015-10-21 | 2017-04-27 | Teufelberger Fiber Rope Gmbh | High-strength fiber rope for lifting devices such as cranes |
WO2017102821A1 (en) * | 2015-12-16 | 2017-06-22 | Teufelberger Fiber Rope Gmbh | Method for determining the replacement state of wear of a rope made of textile fibre material |
EP3392404A1 (en) | 2017-04-20 | 2018-10-24 | Teufelberger Fiber Rope GmbH | High strength fibre cable for hoisting equipment such as cranes |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2158149B1 (en) * | 2007-05-11 | 2013-11-13 | Otis Elevator Company | Elevator load bearing assembly having an initial factor of safety based upon a desired life of service |
DE102007024020A1 (en) * | 2007-05-18 | 2008-11-20 | Casar Drahtseilwerk Saar Gmbh | Rope, combined rope of synthetic fibers and steel wire strands, as well as combined strand of synthetic fibers and steel wires |
CN104428463B (en) | 2012-07-13 | 2018-07-24 | 奥的斯电梯公司 | Belt including fiber |
JP2015048179A (en) * | 2013-08-30 | 2015-03-16 | 東芝エレベータ株式会社 | Elevator apparatus |
JP2015048178A (en) * | 2013-08-30 | 2015-03-16 | 東芝エレベータ株式会社 | Elevator apparatus |
AT515335A1 (en) * | 2014-01-30 | 2015-08-15 | Teufelberger Fiber Rope Gmbh | rope composite |
US10556775B2 (en) | 2016-02-09 | 2020-02-11 | Otis Elevator Company | Surface construction of elevator belt |
US10464249B2 (en) | 2016-07-22 | 2019-11-05 | Ehc Canada, Inc. | Articles having composite member for inhibiting longitudinal stretch |
CN108726318A (en) * | 2017-04-20 | 2018-11-02 | 奥的斯电梯公司 | Elevator system belt with fabric tensional element |
AU2018202605B2 (en) * | 2017-04-20 | 2023-11-30 | Otis Elevator Company | Tension member for elevator system belt |
AU2018202597B2 (en) * | 2017-04-20 | 2023-11-16 | Otis Elevator Company | Tension member for elevator system belt |
AU2018202595B2 (en) * | 2017-04-20 | 2020-01-30 | Otis Elevator Company | Fire-resistant synthetic tension members |
US10556776B2 (en) * | 2017-05-23 | 2020-02-11 | Otis Elevator Company | Lightweight elevator traveling cable |
US20190217798A1 (en) * | 2018-01-17 | 2019-07-18 | SLIPLO, Inc. | Automobile underside protector |
US11535498B2 (en) | 2018-05-17 | 2022-12-27 | Liftwave, Inc. | Fleet and twist tolerant flat belt design |
US10858780B2 (en) * | 2018-07-25 | 2020-12-08 | Otis Elevator Company | Composite elevator system tension member |
US11548763B2 (en) | 2018-08-10 | 2023-01-10 | Otis Elevator Company | Load bearing traction members and method |
US11655120B2 (en) * | 2019-06-28 | 2023-05-23 | Otis Elevator Company | Elevator load bearing member including a unidirectional weave |
CN112432856B (en) * | 2020-11-27 | 2022-09-09 | 青岛鲁普耐特绳网研究院有限公司 | Mooring fiber cable with precise mooring length and method for obtaining same |
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Publication number | Priority date | Publication date | Assignee | Title |
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US4227041A (en) * | 1978-05-23 | 1980-10-07 | Fujikura Cable Works, Ltd. | Flat type feeder cable |
US4445593A (en) * | 1982-10-15 | 1984-05-01 | Siecor Corporation | Flat type feeder cable |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
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US1412310A (en) * | 1919-09-11 | 1922-04-11 | Lambert Tire & Rubber Company | Method of manufacturing belts |
US2740459A (en) * | 1951-06-23 | 1956-04-03 | Goodyear Tire & Rubber | Method and apparatus for building wire reinforced conveyor belts |
NL131619C (en) * | 1964-11-16 | |||
PL150321B1 (en) | 1986-08-12 | 1990-05-31 | Method of and set of equipment for manufacturing composite steel-rubber mine shaft ropes | |
US6401871B2 (en) * | 1998-02-26 | 2002-06-11 | Otis Elevator Company | Tension member for an elevator |
US6672046B1 (en) * | 1999-08-26 | 2004-01-06 | Otis Elevator Company | Tension member for an elevator |
BR0013514B1 (en) * | 1999-08-26 | 2011-11-01 | tension member for providing a lifting force for a car of an elevator system. | |
US8444515B2 (en) * | 2001-11-13 | 2013-05-21 | Otis Elevator Company | Elevator belt assembly with noise and vibration reducing grooveless jacket arrangement |
-
2002
- 2002-09-25 JP JP2004539740A patent/JP2006500303A/en active Pending
- 2002-09-25 US US10/522,191 patent/US8100796B2/en not_active Expired - Fee Related
- 2002-09-25 CN CN028296656A patent/CN1668793B/en not_active Expired - Fee Related
- 2002-09-25 DE DE2002197799 patent/DE10297799T5/en not_active Withdrawn
- 2002-09-25 WO PCT/US2002/030394 patent/WO2004029343A1/en active Application Filing
- 2002-09-25 AU AU2002337687A patent/AU2002337687A1/en not_active Abandoned
-
2006
- 2006-03-13 HK HK06103193A patent/HK1083230A1/en not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4227041A (en) * | 1978-05-23 | 1980-10-07 | Fujikura Cable Works, Ltd. | Flat type feeder cable |
US4445593A (en) * | 1982-10-15 | 1984-05-01 | Siecor Corporation | Flat type feeder cable |
Cited By (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1725375A4 (en) * | 2004-03-15 | 2009-02-18 | Otis Elevator Co | Elevator load bearing member having a jacket with at least one rough exterior surface |
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Also Published As
Publication number | Publication date |
---|---|
US8100796B2 (en) | 2012-01-24 |
CN1668793B (en) | 2013-11-20 |
JP2006500303A (en) | 2006-01-05 |
US20060137896A1 (en) | 2006-06-29 |
DE10297799T5 (en) | 2005-09-15 |
CN1668793A (en) | 2005-09-14 |
AU2002337687A1 (en) | 2004-04-19 |
HK1083230A1 (en) | 2006-06-30 |
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