WO2014159460A1 - Corde à douze brins comprenant des sous-cordes gainées - Google Patents

Corde à douze brins comprenant des sous-cordes gainées Download PDF

Info

Publication number
WO2014159460A1
WO2014159460A1 PCT/US2014/023749 US2014023749W WO2014159460A1 WO 2014159460 A1 WO2014159460 A1 WO 2014159460A1 US 2014023749 W US2014023749 W US 2014023749W WO 2014159460 A1 WO2014159460 A1 WO 2014159460A1
Authority
WO
WIPO (PCT)
Prior art keywords
sub
rope
rope structure
lengths
core
Prior art date
Application number
PCT/US2014/023749
Other languages
English (en)
Inventor
Justin Gilmore
Dennis SHERMAN
David O'neal
Original Assignee
Samson Rope Technologies
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 Samson Rope Technologies filed Critical Samson Rope Technologies
Publication of WO2014159460A1 publication Critical patent/WO2014159460A1/fr

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
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
    • D04C1/00—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof
    • D04C1/06—Braid or lace serving particular purposes
    • D04C1/12—Cords, lines, or tows
    • 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
    • D07B2201/1012—Rope or cable structures characterised by their internal structure
    • D07B2201/1014—Rope or cable structures characterised by their internal structure characterised by being laid or braided from several sub-ropes or sub-cables, e.g. hawsers
    • 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
    • D07B2201/1096—Rope or cable structures braided
    • 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
    • D07B2201/209—Jackets or coverings comprising braided structures
    • 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
    • D07B2201/2095—Auxiliary components, e.g. electric conductors or light guides
    • 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
    • D07B2501/2061—Ship moorings

Definitions

  • the present invention relates to rope structures, systems, and methods and, in particular, to such structures, systems, and methods in which a twelve- strand rope is formed by jacketed sub-ropes.
  • Rope structures are commonly used when a tension load is to be applied between two structures.
  • One common use of a rope structure is as a mooring tether or line adapted to extend between a first structure (e.g., oil drilling or production platform or vessel) and a second structure (an anchor on the sea floor).
  • Mooring tethers or lines are commonly formed with a core for tensile strength and a jacket to cover and protect the core.
  • the core in turn is formed by strands.
  • the protective jacket prevents visual inspection of the load bearing core and/or the strands forming the load bearing, so it is difficult to determine whether the load bearing core of a jacketed mooring tether or line may be subject to failure.
  • the present invention may be embodied as a method of forming a rope structure comprising the following steps.
  • a sub-rope structure comprising a core and a jacket is formed.
  • the sub-rope structure is twisted to form a twisted sub- rope structure.
  • the rope structure is formed by braiding together a plurality of lengths of the twisted sub-rope structure.
  • the present invention may also be embodied as a rope structure comprising a plurality of lengths of a sub-rope structure comprising a core and a jacket.
  • a reference line substantially parallel to a longitudinal axis of the sub- rope structure when the rope sub-structure is initially formed is substantially parallel to the longitudinal axis of the rope sub-structure when the plurality of lengths of the sub-rope structure are braided together to form the rope structure.
  • the present invention may be embodied as a method of forming a rope structure comprising the steps following steps.
  • a rope sub-structure comprising a core and a jacket is provided.
  • An amount of braid twist obtained when braiding the rope sub-structure to form the rope structure is determined.
  • a twisted sub- rope structure is formed by pre-twisting the sub-rope structure to compensate for the braid twist. Lengths of the twisted sub-rope structure are braided together to form the rope structure.
  • Figure 1 is a schematic block diagram illustrating a first example step of a process of making a twelve-strand rope structure of the present invention
  • Figure 2 is a schematic block diagram illustrating a second example step of a process of making a twelve-strand rope structure of the present invention
  • Figure 3 is a schematic block diagram illustrating a third example step of a process of making a twelve-strand rope structure of the present invention
  • Figure 4 is a somewhat schematic section view of an example sub-rope produced by the third example step depicted in Figure 3;
  • Figure 5 is a schematic block diagram illustrating a fourth example step of a process of making a twelve-strand rope structure of the present invention.
  • Figure 6 is a somewhat schematic plan view of an example sub-rope produced by the third example step depicted in Figure 3;
  • Figure 7 is a somewhat schematic plan view of an example twisted sub- rope produced by the fourth example step depicted in Figure 5;
  • Figure 8 is a schematic block diagram illustrating a fifth example step of a process of making a twelve-strand rope structure of the present invention.
  • Figure 9 is a somewhat schematic depiction of an example twelve- strand rope of the present invention.
  • Figure 10 is a somewhat schematic section view of an example sub- rope produced by the third example step depicted in Figure 3 but further comprising a filter member.
  • FIG. 1 -5 of the drawing depicted therein are first, second, third, fourth, and fifth steps, respectively, of a method of fabricating a twelve-strand rope structure in accordance with, and embodying, the principles of the present invention.
  • Figure 6 schematically illustrates an example twelve- strand rope 20 manufactured using the systems and methods depicted in Figures 1 -5.
  • a twisting system 30 comprising a creel system 32 and a first twister 34.
  • the creel system 32 supports spools or bobbins 40 on which are stored filaments 42.
  • the first twister 34 unspools the filaments 42 from the bobbins 40 and twists the filaments 42 together to obtain yarns 44 comprising a plurality of the filaments 42.
  • the yarns 44 are taken up on yarn bobbins 46 for storage and subsequent processing as will be describe in further detail below.
  • the creel system 32 and first twister 34 are or may be conventional and will not be described herein in further detail.
  • the filaments 42 typically comprise one or more synthetic fibers, and the manufacture of the yarns 44 from the filaments 42 using the creel system 32 and first twister 34 also may be conventional.
  • FIG. 2 of the drawing Schematically depicted in Figure 2 of the drawing is a second or sub- rope core forming step performed by a first braiding system 50 comprising a 12- strand braider system 52 and a plurality of the yarn bobbins 46 each containing a length of the yarn 44.
  • the 12-strand braider system 52 is or may be
  • five yarn bobbins 46 are depicted in the schematic representation of the first braiding system 50 in Figure 2, but it will be understood that twelve yarn bobbins 46 and twelve lengths of the yarn 44 are used by the 12-strand braider system 52 of the first braiding system 50.
  • the 12-strand braider system 52 pulls the twelve lengths of yarn 44 and combines these lengths of yarn 44 to form a core structure 54 in the form of a twelve-strand braided rope.
  • the core structure 54 is taken up on a core bobbin 56.
  • FIG. 3 of the drawing schematically depicts a third or sub-rope forming step performed by a second braiding system 60 comprising a cover braider system 62, a plurality of the yarn bobbins 46 each containing a length of the yarn 44, and one the core bobbins 56 containing a length of the core structure 54.
  • the example cover braider system 62 is or may be conventional and will not be described herein in further detail.
  • five yarn bobbins 46 are depicted in the schematic representation of the second braiding system 60 in Figure 3, but it will be understood that twelve yarn bobbins 46 and twelve lengths of the yarns 44 are used by the cover braider system 62 of the second braiding system 60.
  • the cover braider system 62 pulls the core structure 54 and the twelve yarns 44 and combines the core structure 54 and the pulled yarns 44 to form a sub-rope structure 64.
  • the example sub- rope structure 64 comprises a jacket structure 68 formed by the yarns 44 and a core formed by the core structure 54.
  • the sub-rope structure 64 thus takes the form of a jacketed twelve-strand braided rope.
  • the sub-rope structure 64 is taken up on a sub-rope bobbin 66.
  • Figure 5 of the drawing schematically depicts a fourth or pre-twist forming step performed by a second twister system 70 comprising a second twister 72 and a sub-rope bobbin 68 comprising a length of the sub-rope structure 64.
  • the second twister 72 unspools the length of sub-rope structure 64 from the sub-rope bobbin 68 and twists the sub-rope structure 64 to obtain a twisted sub-rope structure 74.
  • the twisted sub-rope structure 74 is taken up on a twisted sub-rope bobbin 76 for storage and subsequent processing as will be describe in further detail below.
  • the second twister 72 is or may be conventional and will not be described herein in further detail.
  • Figure 6 and 7 schematically represent the untwisted sub-rope structure 64 and the twisted sub-rope structure 74 obtained after the untwisted sub-rope structure 64 is processed by the second twister system 70.
  • a straight reference line 78 shown as a dashed line in Figure 6, is defined along a length of the untwisted sub-rope structure 64 and parallel to the longitudinal axis of that structure 64. It should be apparent that the reference line 78 is not a feature of the sub-rope structure 64 but would be formed solely for the purpose of illustrating the difference between the untwisted sub-rope structure 64 and the twisted rope structure 74.
  • the reference line 78 follows a helical path, as shown by dashed lines in Figure 7, centered about the longitudinal axis of the twisted rope substructure 74.
  • dashed lines A similar convention of straight and angled (helical) dashed lines is used in Figure 5 to distinguish between the un-twisted sub-rope structure 64 going into the second twister system 70 and the twisted sub-rope structure 74 leaving the second twister system 70.
  • Figure 8 of the drawing schematically depicts a fifth or rope forming step performed by a third braiding system 80 comprising a 12-strand braider system 82 and a plurality of the twisted sub-rope bobbins 76 each containing a length of the twisted sub-rope structure 74.
  • the example 12-strand braider system 92 is or may be conventional and will not be described herein in further detail.
  • five sub-rope bobbins 76 are depicted in the schematic representation of the third braiding system 80 in Figure 8, but it will be
  • twelve sub-rope bobbins 76 and twelve lengths of the twisted sub-rope structure 74 are used by the 12-strand braider system 82 of the third braiding system 80.
  • the 12-strand braider system 82 pulls the twelve lengths of the twisted sub-rope structure 74 and combines these lengths of twisted sub-rope structure 74 to form the rope structure 20 comprising a plurality of assembled sub-rope structures 84.
  • the rope structure 20 is taken up on a 12-strand rope bobbin 86 for subsequent storage and handling prior to use.
  • 12-strand braiders such as the example 12-braider system 82 inherently form a twist in the sub-rope structures braided thereby.
  • the twist is inconsequential.
  • the twist formed by the 12-strand braider deforms the jacketed sub-rope structure and thus the twelve-strand braided rope formed thereby. Accordingly, jacketed sub-rope structures are not effectively used to form a rope structure using 12- strand braiders.
  • the Applicants have discovered that the performance of the pre-twist step to twist sub-rope structure ultimately taken up by a conventional 12-strand braider can compensate for the twist applied by a 12-strand braider.
  • the pre-twist step performed by the second twister system 70 is configured to yield a twisted sub-rope structure 74 having an amount of pre-twist in a first direction to compensate for an amount of braid twist applied in a direction opposite the first direction by the 12-strand braider system 82.
  • the assembled sub-rope structures 84 are not twisted, these sub-rope structures 84 do not deform and/or result in deformation of the final rope structure 20. Further, the final rope structure 20 need not be jacketed to cover the assembled sub-rope structures 84 because the assembled sub-rope structures 84 are themselves jacketed. If the final rope structure 20 is used, as an example, as a mooring tether or line, the assembled sub-rope structures 84 are easily inspectable.
  • the method of the present invention may further comprise the step of arranging a filter member 90 between the core structure 54 and the jacket structure 68 before or while the jacket structure 68 is being formed.
  • the filter member 90 may be a long strip of filter paper wrapped in a helix around the core structure 54 or may be a long thin sheet of filter paper folded around the core structure 54. In either case, the filter member 90 inhibits egress of sediment and the like into the core structure 54.
  • the filaments 42 may be made of one or more fibers made of the following materials: Polyester, Polyethylene, Polypropylene, Nylon, Aramid, Liquid Crystal Polymer, copolymers, High Modulus Polyethylene, Glass, Carbon, and Basalt.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Textile Engineering (AREA)
  • Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
  • Ropes Or Cables (AREA)

Abstract

Selon l'invention, une structure de corde est obtenue par formation d'une structure de sous-corde comprenant une âme et une gaine, par torsion de la structure de sous-corde afin d'obtenir une structure de sous-corde torsadée, et par formation de la structure de corde par tressage d'une pluralité de longueurs de la structure de sous-corde torsadée.
PCT/US2014/023749 2013-03-14 2014-03-11 Corde à douze brins comprenant des sous-cordes gainées WO2014159460A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/831,142 US20140260927A1 (en) 2013-03-14 2013-03-14 Twelve-strand rope employing jacketed sub-ropes
US13/831,142 2013-03-14

Publications (1)

Publication Number Publication Date
WO2014159460A1 true WO2014159460A1 (fr) 2014-10-02

Family

ID=51521455

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2014/023749 WO2014159460A1 (fr) 2013-03-14 2014-03-11 Corde à douze brins comprenant des sous-cordes gainées

Country Status (2)

Country Link
US (1) US20140260927A1 (fr)
WO (1) WO2014159460A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9573661B1 (en) 2015-07-16 2017-02-21 Samson Rope Technologies Systems and methods for controlling recoil of rope under failure conditions

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160348289A1 (en) * 2015-05-28 2016-12-01 Jashwant Jagmohan Shah Automated apparatus for composite self-twist-yarn braiding
NL2016586B1 (en) * 2016-04-11 2017-11-01 Lankhorst Euronete Portugal S A Hoisting rope.
US10167582B1 (en) 2016-05-13 2019-01-01 Stryker Corporation Braided filament with particularized strand compositions and methods of manufacturing and using same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040069132A1 (en) * 2002-10-15 2004-04-15 Celanese Advanced Materials, Inc. Rope for heavy lifting applications
US20120297746A1 (en) * 2011-05-24 2012-11-29 Samson Rope Technologies Rope Structures and Methods

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4375779A (en) * 1981-04-24 1983-03-08 Minnesota Mining And Manufacturing Company Composite sewing thread of ceramic fibers
US20080299855A1 (en) * 2007-05-31 2008-12-04 Toshifumi Morihashi Core yarn and woven and knitted fabric

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040069132A1 (en) * 2002-10-15 2004-04-15 Celanese Advanced Materials, Inc. Rope for heavy lifting applications
US20120297746A1 (en) * 2011-05-24 2012-11-29 Samson Rope Technologies Rope Structures and Methods

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9573661B1 (en) 2015-07-16 2017-02-21 Samson Rope Technologies Systems and methods for controlling recoil of rope under failure conditions

Also Published As

Publication number Publication date
US20140260927A1 (en) 2014-09-18

Similar Documents

Publication Publication Date Title
EP2573257B1 (fr) Câble hybride et procédé pour sa production
RU2617031C2 (ru) Комбинированный трос или комбинированная прядь
US7908955B1 (en) Rope structures and rope displacement systems and methods for lifting, lowering, and pulling objects
CA2487759C (fr) Cable sans fin
CN104762843B (zh) 一种海上用水中构件装置系留缆绳及其制作方法
JP7113004B2 (ja) ホイストロープ
WO2014159460A1 (fr) Corde à douze brins comprenant des sous-cordes gainées
KR20160012198A (ko) 고강도 리깅 및 그 제조방법
CA2668495A1 (fr) Cable de fil d'acier a plusieurs brins
JP2017036519A (ja) 強化用組紐構造体及びこれを用いた複合材料
KR101285563B1 (ko) 튜브형 로프 제조방법 및 그 제조방법에 의해 제조된 튜브형 로프
US11499268B2 (en) Bend fatigue resistant blended rope
JP3186025U (ja) 合成繊維製の心綱およびその心綱を有するワイヤロープ
JP3246495U (ja) 繊維ロープ
CN210368439U (zh) 一种带有插扣结构的编织绳缆
JP7144276B2 (ja) ロープ
KR20230137162A (ko) 와이어 로프
JP2020056124A (ja) ロープ
KR20230095116A (ko) 로프, 스트랜드, 그리고 로프 및 스트랜드를 제조하기 위한 방법 및 장치
AU2013206251B2 (en) Cable, combined cable made of plastic fibers and steel wire strands, and combined strands made of plastic fibers and steel wires
JPH01321982A (ja) 魚網の側張用ロープ
CN112761006A (zh) 一种具有增强强度和减轻重量的混合绳索
NL1020732C2 (nl) Eindloos touw.
CN107268309A (zh) 一种具有2+7+13结构的载重胎胎体钢帘线

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14774213

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14774213

Country of ref document: EP

Kind code of ref document: A1