EP1837301A1 - Cable pour ascenseur et son procede de fabrication - Google Patents

Cable pour ascenseur et son procede de fabrication Download PDF

Info

Publication number
EP1837301A1
EP1837301A1 EP05703629A EP05703629A EP1837301A1 EP 1837301 A1 EP1837301 A1 EP 1837301A1 EP 05703629 A EP05703629 A EP 05703629A EP 05703629 A EP05703629 A EP 05703629A EP 1837301 A1 EP1837301 A1 EP 1837301A1
Authority
EP
European Patent Office
Prior art keywords
strand
covering
inner layer
outer layer
strands
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.)
Withdrawn
Application number
EP05703629A
Other languages
German (de)
English (en)
Other versions
EP1837301A4 (fr
Inventor
Takenobu c/o Mitsubishi Denki Kabushiki HONDA
Atsushi c/o Mitsubishi Denki Kabushiki 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 EP1837301A1 publication Critical patent/EP1837301A1/fr
Publication of EP1837301A4 publication Critical patent/EP1837301A4/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/06—Arrangements of ropes or cables
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/16—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics
    • 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
    • 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
    • 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
    • D07B1/167—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics characterised by a plastic or rubber inlay having a predetermined shape
    • 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
    • D07B2201/1028—Rope or cable structures characterised by the number of strands
    • D07B2201/1036—Rope or cable structures characterised by the number of strands nine or more strands respectively forming multiple layers
    • 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
    • D07B2201/2015—Strands
    • D07B2201/2042—Strands characterised by a coating
    • D07B2201/2044—Strands 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
    • D07B2201/2015—Strands
    • D07B2201/2046—Strands comprising fillers
    • 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 having a resin outer layer covering body provided in an outer peripheral portion thereof, and to a method of manufacturing the same.
  • an inner layer rope has a plurality of inner layer strands formed of a plurality of steel wires twisted together.
  • the outer periphery of the inner layer rope is covered with an inner layer covering body formed of a resin.
  • An outer layer is provided in the outer peripheral portion of the inner layer covering body.
  • the outer layer has a plurality of outer layer strands formed of a plurality of steel wires twisted together.
  • the outer periphery of the outer layer is covered with an outer layer covering body formed of a high-friction resin material (see, for example, Patent Document 1).
  • Patent Document 1 WO 03/050348 A1
  • the present invention has been made with a view toward solving the above problems. It is an object of the present invention to provide an elevator rope which makes it possible to secure a stable resin thickness between the layers and between the strands and which helps to more reliably prevent the strands from coming into contact with each other, to thereby achieve an increase in the service life, and a method of manufacturing such an elevator rope.
  • An elevator rope includes: a core strand having a core strand main body formed of a plurality of steel wires twisted together, and a resin strand covering body covering the core strand main body; an inner layer strand assembly composed of a plurality of inner layer strands twisted together in an outer periphery of the core strand around the core strand, each inner layer strand having an inner layer strand main body formed of a plurality of steel wires twisted together and a resin inner layer covering body covering the inner layer strand main body; an outer layer strand assembly composed of a plurality of outer layer strands twisted together in an outer periphery of the inner layer strand assembly, each outer layer strand having an outer layer strand main body formed of a plurality of steel wires twisted together; and a resin outer layer covering body covering the outer layer strand assembly, in which the inner layer strand main bodies and the inner strand covering bodies are glued to each other through the intermediation of an adhesive, and the outer layer strands and the outer
  • the elevator rope according to the present invention includes: a core strand having a core strand main body formed of a plurality of steel wires twisted together, and a resin strand covering body covering the core strand main body; an inner layer strand assembly composed of a plurality of inner layer strands twisted together in an outer periphery of the core strand around the core strand, each inner layer strand having an inner layer strand main body formed of a plurality of steel wires twisted together and a resin inner layer covering body covering the inner layer strand main body; an outer layer strand assembly composed of a plurality of outer layer strands twisted together in an outer periphery of the inner layer strand assembly, each outer layer strand having an outer layer strand main body formed of a plurality of steel wires twisted together; and a resin outer layer covering body covering the outer layer strand assembly, in which the inner layer strand main bodies and the inner strand covering bodies are glued to each other through the intermediation of an adhesive, and the outer layer strand main body
  • a method of manufacturing the elevator rope includes: a first step of producing a plurality of strands by covering strand main bodies, each of which is formed of a plurality of steel wires twisted together, with resin strand covering bodies; a second step of twisting together the strands; and a third step of covering an assembly of the strands with a resin outer covering body after the second step.
  • Fig. 1 is a diagram schematically showing the construction of an elevator apparatus according to Embodiment 1 of the present invention.
  • a support beam 2 is horizontally fixed to the upper portion of the interior of a hoistway 1.
  • a driving machine (hoist) 3 is mounted on the support beam 2.
  • the driving machine 3 has a driving machine main body 4 including a motor, and a driving sheave 5 rotated by the driving machine main body 4.
  • the driving machine 3 is arranged horizontally so that a rotation shaft of the driving sheave 5 may extend vertically.
  • FIG. 1 shows one main rope 6.
  • the end portions of the main ropes 6 are connected to the support beam 2.
  • a car 7 and a counterweight 8 are suspended in the hoistway 1 by the main ropes 6, and are caused to ascend and descend by the driving machine 3.
  • a pair of car sash pulleys 9 around which the main ropes 6 are wrapped.
  • a pair of counterweight sash pulleys 10 around which the main ropes 6 are wrapped.
  • Mounted on the support beam 2 are a first pulley 11 for guiding the main ropes 6 from the driving sheave 5 to the car sash pulleys 9 and a second pulley 12 for guiding the main ropes 6 from the driving sheave 5 to the counterweight sash pulleys 10.
  • Fig. 2 is a cross-sectional view of the main rope 6 of Fig. 1.
  • the core strand 21 has a core strand main body 22 formed of a plurality of steel wires twisted together, and a resin core strand covering body 23 covering the core strand main body 22.
  • the sectional configuration of the steel wires situated in the outer peripheral portion of the core strand main body 22 is deformed by compressing the core strand main body 22 from the outer periphery thereof.
  • the core strand covering body 23 is formed of a hard resin, such as polyethylene resin.
  • an inner layer strand assembly 25 composed of a plurality of (eight, in this example) inner layer strands 24.
  • the inner layer strands 24 are twisted together around the core strand 21, that is, in the outer periphery of the core strand 21.
  • Each inner layer core strand 24 has an inner layer strand main body 26 formed of a plurality of steel wires twisted together, and a resin inner layer strand covering body 27 covering the inner layer strand main body 26.
  • the sectional configuration of the steel wires situated in the outer peripheral portion of the inner layer strand main body 26 is deformed by compressing the inner layer strand main body 26 from the outer periphery thereof.
  • each inner layer strand 24 undergoes a stabilization treatment for causing the adhesion performance of the adhesive to be exerted more reliably.
  • the stabilization treatment is a treatment in which the inner layer strand is heated by being left to stand for several minutes to several days in a furnace at a temperature of approximately 50 to 150°C to thereby enhance the adhesion force.
  • the diameter of each inner layer strand 24 is smaller than that of the core strand 21. That is, the number of steel wires contained in each inner layer strand main body 26 is smaller than the number of constituent strands contained in the core strand main body 22.
  • the inner layer strand covering bodies 27 are formed of a hard resin, such as polyethylene resin.
  • each outer layer strand 29 is composed solely of an outer layer strand main body, which is formed of a plurality of steel wires twisted together.
  • the diameter of each outer layer strand 29 is smaller than that of the inner layer strands 24. That is, the number of constituent wires contained in the outer layer strands 29 is smaller than the number of constituent wires contained in the inner layer strand main bodies 26.
  • the outer periphery of the outer layer strand assembly 30 is covered with a resin outer layer covering body 31.
  • the inner layer covering body 28 is formed of the same kind of material as the outer layer covering body 31 (a material whose ingredients and mechanical characteristics are the same or alike), and is integrated with the outer layer covering body 31. That is, the inner layer covering body 28 and the outer layer covering body 31 are formed of a high-friction resin material exhibiting high wear resistance and a coefficient of friction of 0.2 or more, for example, polyurethane resin.
  • An adhesive is applied to the outer periphery of each outer layer strands 29, and the outer layer strands 29, the inner layer covering body 28, and the outer layer covering body 31 are glued to each other through the intermediation of the adhesive. It is also possible to apply an adhesive to the outer periphery of each inner layer strand 24, gluing the inner layer strands 24 and the inner layer covering body 28 to each other through the intermediation of the adhesive. Like the inner layer strands 24, the outer layer strands 29 undergo a stabilization treatment after the application of the adhesive.
  • suitable examples of the adhesive to be used for the gluing of the covering bodies 28, 31 and the strands 24, 29 include an epoxy type adhesive, a phenol type adhesive, and an urethane type adhesive.
  • the core strand 21 is provided with the core strand covering body 23
  • the inner layer strands 24 are provided with the inner layer strand covering bodies 27, and the outer layer strand assembly 30 is covered with the outer layer covering body 31, so that it is possible to secure a stable resin thickness between the layers and between the strands, and the strands are more reliably prevented from coming into contact with each other, thereby achieving an increase in service life.
  • the inner layer strand main bodies 26 and the inner layer strand covering bodies 27 are glued to each other through the intermediation of the adhesive, and the outer layer strands 29 and the outer layer covering body 31 are glued to each other through the intermediation of the adhesive, which also helps to secure a stable resin thickness between the layers and between the strands, thereby achieving an increase in service life. That is, even if the main rope 6 is repeatedly bent and stretched, the covering bodies 27, 28, 31 are not deviated in position, making it possible to maintain a stable sectional configuration.
  • the rope as a whole does not easily get out of shape either, so it is also possible to secure a stable resin thickness between the layers and between the strands, making it possible to achieve an increase in service life.
  • the inner layer strands 24 are twisted together in the outer periphery of the core strand 21 (second step), and further, the outermost layer is covered with the outer layer covering body 31 (third step). That is, after the strands 21, 24 have been respectively covered with the covering bodies 23, 27, the inner layer strands 24 are twisted together around the core strand 21. As a result, it is possible to secure a stable resin thickness between the core strand 21 and the inner layer strands 24 and between the adjacent inner layer strands 24.
  • the inner layer covering body 28 and the inner layer strand covering bodies 27 are fusion-bonded to each other, so that it is possible to further stabilize the sectional configuration of the rope as a whole.
  • the inner layer covering body 28 is formed of the same kind of material as the outer layer covering body 31, and is integrated with the outer layer covering body 31, so that it is possible to further stabilize the sectional configuration and to achieve an increase in the service life of the rope as a whole.
  • the outer layer and the inner layer are integrated with each other, making it possible to bear the load burden and geometrical deformation/displacement with respect to external forces with the entire section.
  • Fig. 3 is a sectional view of an elevator rope according to Embodiment 2 of the present invention.
  • an outer layer strand assembly 33 composed of a plurality of (twenty, in this example) outer layer strands 32.
  • the outer layer strands 32 are twisted together in the outer periphery of the inner layer covering body 28.
  • each outer layer strand 32 has an outer layer strand main body 34 formed of a plurality of steel wires twisted together, and a resin outer layer strand covering body 35 covering the outer layer strand main body 34.
  • Fig. 4 is an enlarged sectional view of one of the outer layer strand 32 of Fig. 3.
  • gluing is effected by an adhesive 36.
  • the adhesive 36 is applied to the outer periphery of each outer layer strand 32, that is, to the outer periphery of each outer layer strand covering body 35. Further, a stabilization treatment is executed on the adhesive 36. Otherwise, this embodiment is of the same construction as Embodiment 1.
  • the covering bodies 23, 27, 35 are provided in the outer periphery of all the strands 21, 24, 32, so that it is possible to secure a stable resin thickness between the layers and between the strands, thereby achieving an increase in service life. Further, due to the heat when effecting covering with the outer layer covering body 31, the outer layer covering body 31 and the outer layer strand covering bodies 35 are fusion-bonded to each other, so it is possible to stabilize the sectional configuration of the rope as a whole. Further, since the adhesive 36 is also applied to the outer periphery of each outer layer strand 32, it is possible to integrate the outer layer strands 32 and the covering bodies 28, 31 with each other more reliably.
  • Fig. 6 is a cross-sectional view of an elevator rope according to Embodiment 3 of the present invention.
  • very thin resin films exist between the adjacent inner layer strands 24, or the adjacent inner layer strands 24 are in direct contact with each other.
  • very thin resin films exist between the adjacent outer layer strands 32, or the adjacent outer layer strands 32 are in direct contact with each other.
  • the sectional configuration of the inner layer strand covering bodies 27 and the outer layer strand covering bodies 35 is a substantially trapezoidal configuration with the four corners thereof rounded in order to sufficiently secure the contact area between the adjacent covering bodies 27, 35.
  • This sectional structure can be realized by, for example, applying heat and pressure when twisting together the inner layer strands 24 and the outer layer strands 32. Otherwise, this embodiment is of the same construction as Embodiment 2.
  • Fig. 1 shows an elevator apparatus of the 2:1 roping system
  • the elevator rope of the present invention can also be applied to an elevator apparatus of the 1:1 roping system.
  • the position of the driving machine is not restricted to the upper portion of the hoistway; it may also be arranged in the lower portion of the hoistway.
  • the elevator rope of the present invention is applicable to both a machine-room-less elevator and an elevator with a machine room.

Landscapes

  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Ropes Or Cables (AREA)
EP05703629A 2005-01-14 2005-01-14 Cable pour ascenseur et son procede de fabrication Withdrawn EP1837301A4 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2005/000390 WO2006075384A1 (fr) 2005-01-14 2005-01-14 Cable pour ascenseur et son procede de fabrication

Publications (2)

Publication Number Publication Date
EP1837301A1 true EP1837301A1 (fr) 2007-09-26
EP1837301A4 EP1837301A4 (fr) 2012-11-28

Family

ID=36677420

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05703629A Withdrawn EP1837301A4 (fr) 2005-01-14 2005-01-14 Cable pour ascenseur et son procede de fabrication

Country Status (4)

Country Link
EP (1) EP1837301A4 (fr)
JP (1) JPWO2006075384A1 (fr)
CN (1) CN1930074B (fr)
WO (1) WO2006075384A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3233702A1 (fr) * 2014-12-19 2017-10-25 Bekaert Advanced Cords Aalter NV Câble d'ascenseur et procédé de fabrication dudit câble d'ascenseur

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5322404B2 (ja) * 2007-06-07 2013-10-23 クリサンセマム株式会社 操作用被覆ワイヤロープ
WO2011070648A1 (fr) * 2009-12-08 2011-06-16 三菱電機株式会社 Câble pour ascenseur
EP2634130A1 (fr) * 2010-10-27 2013-09-04 Mitsubishi Electric Corporation Câble pour ascenseur
JP2014507349A (ja) * 2010-12-22 2014-03-27 オーチス エレベータ カンパニー エレベータシステムベルト
KR101088834B1 (ko) 2011-04-12 2011-12-06 디에스알 주식회사 크레인용 합성섬유 로프 및 이의 제조방법
US9550653B2 (en) * 2011-06-10 2017-01-24 Otis Elevator Company Elevator tension member
CN102242508B (zh) * 2011-07-14 2013-02-06 南通海迅电梯部件有限公司 编织式电梯平衡补偿缆
JP5768568B2 (ja) * 2011-08-01 2015-08-26 三菱電機ビルテクノサービス株式会社 エレベータ用巻上ロープ
CN103161085A (zh) * 2011-12-15 2013-06-19 康力电梯股份有限公司 一种电梯装置的缆索
KR101601894B1 (ko) * 2014-06-19 2016-03-09 고려제강 주식회사 엘리베이터용 로프 및 이의 제조방법
DE102015103115A1 (de) * 2015-03-04 2016-09-08 Casar Drahtseilwerk Saar Gmbh Seil und Verfahren zur Herstellung des Seils
KR101667991B1 (ko) * 2015-03-19 2016-10-21 고려제강 주식회사 엘리베이터용 와이어 로프
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
CN109826032A (zh) * 2019-04-09 2019-05-31 贵州钢绳股份有限公司 一种阻旋转钢丝绳及其制造方法
CN116323458A (zh) * 2020-10-14 2023-06-23 三菱电机株式会社 电梯用绳索及其制造方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002010050A1 (fr) * 2000-07-27 2002-02-07 Mitsubishi Denki Kabushiki Kaisha Dispositif elevateur, et procede permettant de produire des cables principaux destines a des dispositifs elevateurs
WO2003025278A1 (fr) * 2001-09-12 2003-03-27 Hitachi, Ltd. Corde
WO2003050348A1 (fr) * 2001-12-12 2003-06-19 Mitsubishi Denki Kabushiki Kaisha Cable d'ascenseur et dispositif d'ascenseur

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3827610B2 (ja) * 2001-05-21 2006-09-27 東京製綱株式会社 多層撚りワイヤロープ
EP1516845B1 (fr) * 2002-06-27 2010-01-20 Mitsubishi Denki Kabushiki Kaisha Cable d'ascenseur et son procede de fabrication

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002010050A1 (fr) * 2000-07-27 2002-02-07 Mitsubishi Denki Kabushiki Kaisha Dispositif elevateur, et procede permettant de produire des cables principaux destines a des dispositifs elevateurs
WO2003025278A1 (fr) * 2001-09-12 2003-03-27 Hitachi, Ltd. Corde
WO2003050348A1 (fr) * 2001-12-12 2003-06-19 Mitsubishi Denki Kabushiki Kaisha Cable d'ascenseur et dispositif d'ascenseur

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2006075384A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3233702A1 (fr) * 2014-12-19 2017-10-25 Bekaert Advanced Cords Aalter NV Câble d'ascenseur et procédé de fabrication dudit câble d'ascenseur
EP3233702B1 (fr) * 2014-12-19 2023-06-07 Bekaert Advanced Cords Aalter NV Câble d'ascenseur et procédé de fabrication de ce câble d'ascenseur

Also Published As

Publication number Publication date
CN1930074B (zh) 2010-05-05
EP1837301A4 (fr) 2012-11-28
WO2006075384A1 (fr) 2006-07-20
JPWO2006075384A1 (ja) 2008-06-12
CN1930074A (zh) 2007-03-14

Similar Documents

Publication Publication Date Title
EP1837301A1 (fr) Cable pour ascenseur et son procede de fabrication
US7036298B2 (en) Rope for elevator and method for manufacturing the rope
EP3127850A1 (fr) Procédé d'agencement de borne de câble et ascenseur
TWI420009B (zh) 合成纖維纜索及其製造方法、具有此合成纖維纜索之升降設備及升降機用支承驅動構件
EP1153167B2 (fr) Element de tension pour ascenseur
JP4108607B2 (ja) エレベータ用ロープ及びエレベータ装置
JP2007536186A (ja) スピードガバナ用のケーブルおよびベルトとそれに関連したプーリ
JP6452839B2 (ja) エレベータ用ロープ及びその製造方法
JP4096879B2 (ja) エレベータ用ロープ
JP5859138B2 (ja) エレベータシステムベルト
KR20040071180A (ko) 엘리베이터용 로프 및 엘리베이터 장치
JP2005529043A (ja) コーティングされた巻上ロープを設けたエレベータ
TW201111265A (en) Traction member for a counterweightless elevator
JP5463931B2 (ja) エレベーター用巻上ロープ
KR100837466B1 (ko) 엘리베이터용 로프 및 그 제조 방법
KR101477345B1 (ko) 엘리베이터용 로프 및 그 제조방법
JP2014507348A (ja) エレベータの懸吊装置および／または駆動装置
WO2011070648A1 (fr) Câble pour ascenseur
KR100830777B1 (ko) 엘리베이터용 로프 및 엘리베이터 장치
JPH03121333A (ja) エレベータの主ロープ連結構造
WO2013089723A1 (fr) Courroie pour ascenseur

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20060904

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE

DAX Request for extension of the european patent (deleted)
RBV Designated contracting states (corrected)

Designated state(s): DE

A4 Supplementary search report drawn up and despatched

Effective date: 20121029

RIC1 Information provided on ipc code assigned before grant

Ipc: B66B 7/06 20060101AFI20121023BHEP

Ipc: D07B 1/16 20060101ALI20121023BHEP

17Q First examination report despatched

Effective date: 20130118

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIN1 Information on inventor provided before grant (corrected)

Inventor name: MITSUI, ATSUSHI

Inventor name: HONDA, TAKENOBU

INTG Intention to grant announced

Effective date: 20130926

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20140207