WO2010143249A1 - エレベータ用ロープ及びその製造方法 - Google Patents
エレベータ用ロープ及びその製造方法 Download PDFInfo
- Publication number
- WO2010143249A1 WO2010143249A1 PCT/JP2009/060445 JP2009060445W WO2010143249A1 WO 2010143249 A1 WO2010143249 A1 WO 2010143249A1 JP 2009060445 W JP2009060445 W JP 2009060445W WO 2010143249 A1 WO2010143249 A1 WO 2010143249A1
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- WIPO (PCT)
- Prior art keywords
- core rope
- rope
- core
- covering
- strand
- Prior art date
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Classifications
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- 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
- D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
-
- 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
- D07B1/165—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics characterised by a plastic or rubber inlay
-
- 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
- D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
- D07B1/0673—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core having a rope configuration
- D07B1/0686—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core having a rope configuration characterised by the core design
-
- 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
- D07B2201/2001—Wires or filaments
- D07B2201/201—Wires or filaments characterised by a coating
- D07B2201/2012—Wires or filaments characterised by a coating comprising polymers
-
- 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
- D07B2201/2047—Cores
- D07B2201/2048—Cores characterised by their cross-sectional shape
- D07B2201/2049—Cores characterised by their cross-sectional shape having protrusions extending radially functioning as spacer between strands or wires
-
- 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
- D07B2201/2047—Cores
- D07B2201/2052—Cores characterised by their structure
- D07B2201/2055—Cores characterised by their structure comprising filaments or fibers
- D07B2201/2057—Cores characterised by their structure comprising filaments or fibers resulting in a twisted structure
-
- 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
- D07B2201/2047—Cores
- D07B2201/2052—Cores characterised by their structure
- D07B2201/2059—Cores characterised by their structure comprising wires
-
- 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
- D07B2201/2047—Cores
- D07B2201/2052—Cores characterised by their structure
- D07B2201/2065—Cores characterised by their structure comprising a coating
-
- 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
-
- 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
Definitions
- the present invention relates to an elevator rope used as, for example, a main rope for suspending a car, and a manufacturing method thereof.
- a plurality of steel strands are twisted around the outer periphery of a core rope made of fiber bundles.
- the core rope is generally configured by twisting three core rope strands each formed by twisting a large number of yarns.
- a core rope strand is twisted together with a steel strand, it is compression molded from the outer periphery and densified. Thereby, while the form of a rope is stabilized, the clearance gap between steel strands is maintained appropriately (for example, refer patent document 1).
- the packing density (mass per unit length) with respect to the diameter of the core rope is increased in order to stabilize the form of the rope and appropriately maintain the gap between the steel strands.
- the accumulation of gaps in the core rope increases, making it difficult to ensure the filling density of the core rope while keeping the core rope diameter a predetermined size. It becomes.
- a large tightening force is required to suppress the rope diameter when twisting the steel strand, and the surface of the steel strand This may damage the core and the fiber of the core rope, which will reduce the strength and life.
- This invention was made in order to solve the above problems, and even when the rope diameter is large, it is possible to increase the packing density of the core rope while preventing damage to the core rope and the steel strand. It aims at obtaining the rope for elevators, and its manufacturing method.
- the elevator rope according to the present invention includes a core rope made of fiber bundles, a resin core rope covering body coated on the outer periphery of the core rope, and a plurality of steel pieces twisted around the outer periphery of the core rope cover body. Has a strand.
- the manufacturing method of the rope for elevators according to the present invention includes a step of covering the outer periphery of the core rope made of fiber bundles with a resin core rope cover, and a plurality of steel strands on the outer periphery of the core rope cover. Including a twisting step.
- the method for manufacturing an elevator rope according to the present invention includes a step of coating a core rope strand covering on the outer periphery of a plurality of core rope strands made of fiber bundles, and a core rope strand coated with the core rope strand cover. Twisting each other into a core rope, passing the core rope through a heated die, integrating the core rope strand coverings individually covering the core rope strands, and forming a core rope cover, and Including a step of twisting a plurality of steel strands around the outer periphery of the core rope cover.
- the core rope made of fiber bundles is covered with a resin core rope cover, and steel strands are twisted around the outer periphery thereof, so even if the rope diameter is large, the core rope
- the packing density of the core rope can be increased while preventing damage to the rope or steel strand.
- FIG. 1 is a cross-sectional view of an elevator rope according to Embodiment 1 of the present invention.
- a core rope 1 is arranged at the center of an elevator rope (wire rope).
- the core rope 1 is constituted by twisting three core rope strands 2 and pressurizing them from the outer periphery.
- Each core rope 2 is composed of a number of yarns made of bundled fibers.
- the outer periphery of the core rope 1 is covered with a resin core rope cover 3.
- a resin core rope cover 3 For example, polyethylene or polypropylene is used as the material of the core rope covering 3.
- a plurality of (here, 8) steel strands 4 are twisted around the outer periphery of the core rope covering 3.
- Each steel strand 4 is constituted by twisting a plurality of steel strands. More specifically, the steel strand 4 is twisted around the core wire arranged at the center, an intermediate layer composed of a plurality of intermediate wires twisted around the outer periphery of the core wire, and the outer periphery of the intermediate layer. And an outer layer made of a plurality of outer peripheral wires. The diameter of the intermediate strand is smaller than the diameters of the core strand and the outer peripheral strand.
- the core rope covering 3 is interposed between the steel strands 4 adjacent to each other.
- the core rope covering 3 is also interposed between the steel strand 4 and the core rope 1.
- a plurality of grooves 1a having a V-shaped cross section are formed between the adjacent core rope strands 2 on the outer periphery of the core rope 1, and the core rope cover 3 also enters the groove 1a.
- the elevator rope shown in FIG. 1 When the elevator rope shown in FIG. 1 is manufactured, first, as shown in FIG. 2, three core rope strands 2 having a circular cross section are twisted together, and the outer circumference of the core rope cover 3 is covered. At this time, the core rope covering 3 is covered on the outer periphery of the core rope 1 by extrusion using a pressure type die 5 as shown in FIG.
- a core rope insertion passage 5a through which the core rope 1 is inserted is provided in the center of the pressure type die 5.
- a cylindrical resin flow path 5b is provided on the radially outer side of the core rope insertion passage 5a in the pressure type die 5.
- the diameter of the resin flow path 5 b is gradually reduced on the downstream side (left side in FIG. 3), and the downstream end of the resin flow path 5 b is joined to the core rope insertion path 5 a in the pressure type die 5. That is, the resin that has flowed into the resin flow path 5 b is coated on the outer periphery of the core rope 1 while being pressurized in the pressure type die 5. Thereby, resin is filled also in the clearance gap of the outer periphery of the core rope 1.
- the core rope cover 3 has a form as shown in FIG. 5 or FIG. That is, the core rope cover 3 is cylindrical in FIG. 5, and the core rope cover 3 is attached to the outer periphery of the core rope 1 with a certain thickness in FIG. The effect of increasing is small.
- the steel strands 4 are twisted together. At this time, the core rope 1 is compressed and densified from the outer periphery via the core rope cover 3. Further, the core rope cover 3 enters between the steel strands 4 adjacent to each other.
- the core rope cover 3 is coated on the outer periphery of the core rope 1, the core rope 1 can be compression-molded via the core rope cover 3, and the rope diameter is large.
- the packing density of the core rope 1 can be increased while preventing damage to the core rope 1 and the steel strand 4.
- the core rope cover 3 is filled in the gap on the outer periphery of the core rope 1 without being tightened more than necessary or deforming the core rope 1.
- the rigidity of the rope 1 can be maintained, and the damage to the core rope 1 and the steel strand 4 can also be prevented by this.
- the core rope cover 3 is deformed and enters between the steel strands 4 and between the core rope strands 2 and has high rigidity and is difficult to be deformed as compared with the conventional core rope only of the fiber core,
- the contact pressure of the core rope strand 2 can be reduced, and fretting wear can be reduced.
- the thickness of the core rope cover 3 is not increased more than necessary, minute cracks occur in the core rope cover 3 due to repeated bending, but the lubricating oil contained in the core rope 1 is removed from this gap. It is supplied to the steel strand 4 and can maintain a good lubrication state.
- a fine hole may be provided in the core rope cover 3 in advance.
- FIG. 7 is a cross-sectional view showing a state in the middle of manufacturing an elevator rope according to Embodiment 2 of the present invention.
- a core rope strand covering 7 is applied to the outer periphery of each core rope strand 2, and the core rope covering 3 is formed on the outer periphery of the core rope 1 formed by twisting the coated core rope strands 2 together. Yes.
- the core rope strand covering 7 is made of the same resin as the core rope covering 3.
- the core rope strand covering 7 is coated on the outer circumference of the core rope strand 2 by extrusion molding using a tube type die 6 as shown in FIG. Further, the core rope covering 3 is formed using a pressure type die 5 as shown in FIG. Other configurations are the same as those of the first embodiment, and a steel strand 4 is twisted around the outer periphery of the core rope cover 3.
- the core rope 1 is impregnated with lubricating oil
- the resin pressure acts on the core rope 1 so that the lubricating oil is easily squeezed out at the extruder die portion.
- the tube type die 6 since it is a forming method in which the formed tube is placed on the core rope strand 2 outside the die, the lubricating oil is hardly squeezed out at the time of forming.
- the cross section of the core rope 2 has a shape closer to a circle than that of the core rope 1, even if it is molded with the tube type die 6, the filling density with respect to the diameter is almost the same as that when the pressure type die 5 is molded. . From this, the core rope 1 which increased the packing density can be obtained by maintaining the oil content of the core rope 1 by configuring as described above.
- FIG.8 and FIG.9 is sectional drawing which shows the state in the middle of manufacture of the rope for elevators by Embodiment 3 of this invention.
- the core rope strand covering 7 is applied to the outer periphery of each core rope strand 2, and the core rope strand 2 with the covering is twisted together.
- the core rope of FIG. 8 is formed into the form shown in FIG. 9 through a heated die.
- the core rope strand coverings 7 that individually coat the core rope strands 2 are integrated with each other to form the core rope cover 3.
- Other configurations are the same as those of the first embodiment, and a steel strand 4 is twisted around the outer periphery of the core rope cover 3.
- FIG. 10 is a side view showing an example of an elevator apparatus to which the elevator rope of Embodiment 1, 2, or 3 is applied.
- a machine room 12 is provided in the upper part of the hoistway 11.
- a machine table 13 is installed in the machine room 12.
- a hoisting machine 14 is supported on the machine base 13.
- the hoisting machine 14 includes a drive sheave 15 and a hoisting machine main body 16.
- the hoisting machine body 16 includes a hoisting machine motor that rotates the driving sheave 15 and a hoisting machine brake that brakes the rotation of the driving sheave 15.
- a baffle 17 is attached to the machine base 13.
- a plurality of elevator ropes 18 as suspension means are wound around the drive sheave 15 and the deflecting wheel 17.
- a portion closer to the counterweight 10 than the drive sheave 15 of the elevator rope 18 is wound around the baffle wheel 17.
- a car 19 is suspended from one end of the elevator rope 18. That is, the car 19 is suspended in the hoistway 11 by the elevator rope 18 on one side of the drive sheave 15.
- a counterweight 20 is suspended from the other end of the elevator rope 18. That is, the counterweight 20 is suspended by the elevator rope 18 on the other side of the drive sheave 15.
- a pair of car guide rails 21 that guide the raising and lowering of the car 19 and a pair of counterweight guide rails 22 that guide the raising and lowering of the counterweight 20 are installed.
- the car 19 is equipped with an emergency stop device 23 that engages with the car guide rail 21 to stop the car 19 in an emergency.
- the type of elevator apparatus to which the elevator rope of the present invention is applied is not limited to the type shown in FIG.
- the present invention can be applied to a machine room-less elevator, a 2: 1 roping type elevator device, a multi-car type elevator device, or a double deck elevator.
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- Ropes Or Cables (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
Description
また、この発明に係るエレベータ用ロープの製造方法は、繊維束からなる芯綱の外周に樹脂製の芯綱被覆体を被覆する工程、及び芯綱被覆体の外周に複数本の鋼製ストランドを撚り合わせる工程を含む。
さらに、この発明に係るエレベータ用ロープの製造方法は、繊維束からなる複数本の芯綱ストランドの外周に芯綱ストランド被覆体をそれぞれ被覆する工程、芯綱ストランド被覆体が被覆された芯綱ストランドを互いに撚り合わせて芯綱とする工程、加熱したダイスに芯綱を通すことにより、芯綱ストランドを個別に被覆していた芯綱ストランド被覆体を一体化して芯綱被覆体とする工程、及び芯綱被覆体の外周に複数本の鋼製ストランドを撚り合わせる工程を含む。
実施の形態1.
図1はこの発明の実施の形態1によるエレベータ用ロープの断面図である。図において、エレベータ用ロープ(ワイヤロープ)の中心には、芯綱1が配置されている。芯綱1は、3本の芯綱ストランド2を互いに撚り合わせて外周から加圧することにより構成されている。各芯綱ストランド2は、繊維を束ねてなる多数のヤーンにより構成されている。
次に、図7はこの発明の実施の形態2によるエレベータ用ロープの製造途中の状態を示す断面図である。この例では、各芯綱ストランド2の外周に芯綱ストランド被覆体7が施工され、その被覆付の芯綱ストランド2を撚り合わせてなる芯綱1の外周に芯綱被覆体3が成形されている。芯綱ストランド被覆体7は、芯綱被覆体3と同様の樹脂により構成されている。
次に、図8及び図9はこの発明の実施の形態3によるエレベータ用ロープの製造途中の状態を示す断面図である。この例では、図8に示すように、各芯綱ストランド2の外周に芯綱ストランド被覆体7が施工され、その被覆付の芯綱ストランド2が撚り合わせられる。芯綱ストランド被覆体7の成形には、実施の形態2と同様に、チューブタイプダイ6を用いるのが望ましい。この後、図8の芯綱を、加熱したダイスに通して図9に示す形態に成形する。これにより、芯綱ストランド2を個別に被覆していた芯綱ストランド被覆体7が互いに一体化されて芯綱被覆体3となる。他の構成は、実施の形態1と同様であり、芯綱被覆体3の外周には鋼製ストランド4が撚り合わせられる。
Claims (9)
- 繊維束からなる芯綱、
前記芯綱の外周に被覆された樹脂製の芯綱被覆体、及び
前記芯綱被覆体の外周に撚り合わせられている複数本の鋼製ストランド
を備えているエレベータ用ロープ。 - 前記芯綱被覆体は、互いに隣接する前記鋼製ストランド間に入り込んでいる請求項1記載のエレベータ用ロープ。
- 前記芯綱は、互いに撚り合わせられた複数本の芯綱ストランドを有しており、
前記芯綱の外周の互いに隣接する前記芯綱ストランド間には、断面V字状の複数の溝が形成されており、
前記芯綱被覆体は前記溝内に入り込んでいる請求項1記載のエレベータ用ロープ。 - 前記芯綱は、互いに撚り合わせられた複数本の芯綱ストランドを有しており、
前記各芯綱ストランドの外周には、樹脂製の芯綱ストランド被覆体が被覆されている請求項1記載のエレベータ用ロープ。 - 繊維束からなる芯綱の外周に樹脂製の芯綱被覆体を被覆する工程、及び
前記芯綱被覆体の外周に複数本の鋼製ストランドを撚り合わせる工程
を含むエレベータ用ロープの製造方法。 - 前記芯綱への前記芯綱被覆体の被覆は、加圧タイプダイを用いた押出成形により行う請求項5記載のエレベータ用ロープの製造方法。
- 前記芯綱は、繊維束からなる複数本の芯綱ストランドの外周に芯綱ストランド被覆体をそれぞれ被覆した後、前記芯綱ストランド被覆体が被覆された前記芯綱ストランドを互いに撚り合わせて構成する請求項5記載のエレベータ用ロープの製造方法。
- 繊維束からなる複数本の芯綱ストランドの外周に芯綱ストランド被覆体をそれぞれ被覆する工程、
前記芯綱ストランド被覆体が被覆された前記芯綱ストランドを互いに撚り合わせて芯綱とする工程、
加熱したダイスに前記芯綱を通すことにより、前記芯綱ストランドを個別に被覆していた前記芯綱ストランド被覆体を一体化して芯綱被覆体とする工程、及び
前記芯綱被覆体の外周に複数本の鋼製ストランドを撚り合わせる工程
を含むエレベータ用ロープの製造方法。 - 前記芯綱ストランドへの前記芯綱ストランド被覆体の被覆は、チューブタイプダイを用いた押出成形により行う請求項7又は請求項8に記載のエレベータ用ロープの製造方法。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011518150A JP5404782B2 (ja) | 2009-06-08 | 2009-06-08 | エレベータ用ロープ及びその製造方法 |
EP09845774.0A EP2441723B1 (en) | 2009-06-08 | 2009-06-08 | Rope for elevators and process for producing same |
PCT/JP2009/060445 WO2010143249A1 (ja) | 2009-06-08 | 2009-06-08 | エレベータ用ロープ及びその製造方法 |
KR1020117023817A KR101414330B1 (ko) | 2009-06-08 | 2009-06-08 | 엘리베이터용 로프 및 그 제조방법 |
CN200980159770.8A CN102459052B (zh) | 2009-06-08 | 2009-06-08 | 电梯用绳索及其制造方法 |
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PCT/JP2009/060445 WO2010143249A1 (ja) | 2009-06-08 | 2009-06-08 | エレベータ用ロープ及びその製造方法 |
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WO2010143249A1 true WO2010143249A1 (ja) | 2010-12-16 |
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EP (1) | EP2441723B1 (ja) |
JP (1) | JP5404782B2 (ja) |
KR (1) | KR101414330B1 (ja) |
CN (1) | CN102459052B (ja) |
WO (1) | WO2010143249A1 (ja) |
Cited By (9)
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JP2012193475A (ja) * | 2011-03-17 | 2012-10-11 | Asahi Intecc Co Ltd | ワイヤーロープ |
WO2013111260A1 (ja) | 2012-01-23 | 2013-08-01 | 三菱電機株式会社 | エレベータ用ロープ |
WO2014033853A1 (ja) * | 2012-08-29 | 2014-03-06 | 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 |
WO2015004729A1 (ja) | 2013-07-09 | 2015-01-15 | 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 |
WO2017064808A1 (ja) * | 2015-10-16 | 2017-04-20 | 三菱電機株式会社 | エレベータ用ロープ及びその製造方法 |
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JP6414370B1 (ja) * | 2018-03-19 | 2018-10-31 | 三菱電機株式会社 | エレベータロープ |
JP7151937B1 (ja) * | 2021-10-22 | 2022-10-12 | 三菱電機株式会社 | ワイヤロープ、エレベータ、及びワイヤロープの製造方法 |
JP7195483B1 (ja) * | 2022-02-17 | 2022-12-23 | 三菱電機株式会社 | ロープ及びそれを用いたベルト |
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DE102015103115A1 (de) | 2015-03-04 | 2016-09-08 | Casar Drahtseilwerk Saar Gmbh | Seil und Verfahren zur Herstellung des Seils |
WO2018073897A1 (ja) * | 2016-10-18 | 2018-04-26 | 三菱電機株式会社 | エレベータ用ロープ及びエレベータ装置 |
WO2018198240A1 (ja) | 2017-04-26 | 2018-11-01 | 三菱電機株式会社 | エレベータ、その懸架体、及びその製造方法 |
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KR20140116468A (ko) | 2012-01-23 | 2014-10-02 | 미쓰비시덴키 가부시키가이샤 | 엘리베이터용 로프 |
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US9902594B2 (en) | 2012-08-29 | 2018-02-27 | Mitsubishi Electric Corporation | Elevator rope and elevator apparatus that uses same |
WO2015004729A1 (ja) | 2013-07-09 | 2015-01-15 | 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 |
US9896307B2 (en) | 2013-07-09 | 2018-02-20 | Mitsubishi Electric Corporation | Elevator rope and elevator apparatus that uses same |
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JPWO2017064808A1 (ja) * | 2015-10-16 | 2018-02-15 | 三菱電機株式会社 | エレベータ用ロープ及びその製造方法 |
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JP6414370B1 (ja) * | 2018-03-19 | 2018-10-31 | 三菱電機株式会社 | エレベータロープ |
JP7151937B1 (ja) * | 2021-10-22 | 2022-10-12 | 三菱電機株式会社 | ワイヤロープ、エレベータ、及びワイヤロープの製造方法 |
WO2023067809A1 (ja) * | 2021-10-22 | 2023-04-27 | 三菱電機株式会社 | ワイヤロープ、エレベータ、及びワイヤロープの製造方法 |
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Also Published As
Publication number | Publication date |
---|---|
JP5404782B2 (ja) | 2014-02-05 |
EP2441723A4 (en) | 2015-07-08 |
KR20110127262A (ko) | 2011-11-24 |
JPWO2010143249A1 (ja) | 2012-11-22 |
EP2441723B1 (en) | 2019-07-24 |
KR101414330B1 (ko) | 2014-07-02 |
EP2441723A1 (en) | 2012-04-18 |
CN102459052B (zh) | 2014-10-29 |
CN102459052A (zh) | 2012-05-16 |
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