WO2020070342A1 - Système de manille hybride - Google Patents

Système de manille hybride

Info

Publication number
WO2020070342A1
WO2020070342A1 PCT/EP2020/051855 EP2020051855W WO2020070342A1 WO 2020070342 A1 WO2020070342 A1 WO 2020070342A1 EP 2020051855 W EP2020051855 W EP 2020051855W WO 2020070342 A1 WO2020070342 A1 WO 2020070342A1
Authority
WO
WIPO (PCT)
Prior art keywords
bow
rod
hybrid
shackle
strip
Prior art date
Application number
PCT/EP2020/051855
Other languages
English (en)
Inventor
Dietrich Wienke
Rigobert Bosman
Karel Jozef Wetzels
Robert COHNEN
Original Assignee
Dsm Ip Assets B.V.
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 Dsm Ip Assets B.V. filed Critical Dsm Ip Assets B.V.
Publication of WO2020070342A1 publication Critical patent/WO2020070342A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G15/00—Chain couplings, Shackles; Chain joints; Chain links; Chain bushes
    • F16G15/04—Quickly-detachable chain couplings; Shackles chain links with rapid junction means are classified according to the corresponding kind of chain
    • F16G15/06—Shackles designed for attachment by joint pins to chain elements, e.g. D-shackles so called harp links; the D-chain links are classified according to the corresponding kind of chain
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G15/00—Chain couplings, Shackles; Chain joints; Chain links; Chain bushes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G15/00—Chain couplings, Shackles; Chain joints; Chain links; Chain bushes
    • F16G15/04—Quickly-detachable chain couplings; Shackles chain links with rapid junction means are classified according to the corresponding kind of chain
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G15/00—Chain couplings, Shackles; Chain joints; Chain links; Chain bushes
    • F16G15/12—Chain links

Definitions

  • the present invention relates to a hybrid shackle system comprising at least one bow and a rod.
  • the invention also relates to a process for opening or closing the hybrid shackle system.
  • the invention directs to a lifting system comprising the hybrid shackle system and to the use of the hybrid shackle system in different applications.
  • Shackles are commonly used mainly as auxiliaries for rigging, for load securing, towing, pulling and for recovery of loads in many industries. Their dimension varies from couple of centimeters to about one meter or more. An important known use for shackles is overhead lifting of heavy industrial items. Shackle’s WLL (Work Load Limits) typically varies from a few kilograms to thousands of tons, whereas the shackle weight varies from a few grams to a couple of tons. Various types of shackle systems are already known in the art.
  • “soft shackles” are asymmetric polymeric constructions typically made with a single length of line noosed at one end where the lines are running through each other and knotted or buttoned together at the other end; in use the knot is inserted through the noose tightened to form a securing loop, as described e.g. in US 2017/0334533 A1.
  • US 2009/0008953 A1 discloses a heavy metal shackle that has a U-shaped body and is comprised of a bow portion and first and second spaced apart arms; each arm has an end portion with an opening for receiving a shackle pin and with a nut being rotatably mounted to the second end portion of the shackle body.
  • the shackle design described in this document has an asymmetric design and is preferably made of a single sided connected rope secured by a knot, through a hollow tube, forming together a loop.
  • the hollow tube has the role of a pin typically used in steel shackles, however, it cannot be fully separated from the fiber rope bow like in industrial shackles, where the pin is typically fully pulled out of the bow.
  • US 2003/0000442 A1 discloses two fiber rope bows, each having two legs being fixed to each other with a tape-like material, so in total 4 legs, with each bow being limited by only half of the shackle’s total load capacity and with each bow being unable to rotate around the pin and with each bow being unable to rotate independently from another bow.
  • the shackle system described in US 2003/0000442 A1 can only be opened by removing the tape, then removing the loop from the tube followed by bending two of the four legs.
  • the asymmetric design leads to asymmetric loads and thus to safety problems.
  • the use of four bow legs also leads to safety issues because the user may have doubts of where to attach the crane hook for industrial applications; missing out on one of the two bows may lead to lifting failure or disaster due to the above-mentioned limitation of bow’s individual strength to 50% of the shackle’s total load capacity.
  • US 8205922 B1 discloses a grommet shackle having an asymmetric shape and having a pair of the opposed parallel legs that include an opening therethrough to receive a pin or a bolt, with a central bow extending between the pair of legs to form a jaw to receive a rope or a cable.
  • the disadvantages of the shackle systems known in the prior art include lower strength at break, higher weight and more complex construction that make it difficult to handle and may create ergonomic, health and safety issues during use in different applications.
  • An additional disadvantage of the shackles known in the prior art is the limited way of opening and closing of the shackle that may cause safety issues, especially in case of overhead lifting.
  • Another disadvantage of the known shackles is the uncertain way of attachment of the shackles to the load side or to the master link side under the crane hook that may also cause safety issues, in particular in case of overhead lifting.
  • the objective of the present invention is to provide a shackle system having a higher strength at break, simpler construction, enhanced safer design and being more intuitive and more versatile during use, that increases the lifting capacity while minimizing the weight of the shackle itself for faster manual handling, and that can be opened, closed and connected in a safer way preventing failure during handling it.
  • the first bow is a lengthy body having two ends, the lengthy body is terminated by at least one eye at each of the two ends, and the lengthy body comprises high- performance polymeric fibers;
  • the hybrid shackle system according to the present invention has a higher strength at break, simpler construction, a safer design and is more versatile in use, that increases the lifting capacity while minimizing the weight of the shackle itself for faster manual handling, and that can be opened, closed and connected in a safer way preventing failure during handling it. Therefore, the shackle according to the present invention may be also regarded as a quick reversible coupling device (couples and decouples safer, easier and faster).
  • the shackle system shows versatility, speed and easiness in opening and closing the shackle and connecting it to other elements, e.g. by the steps of moving the rigid rod out of the bow, while leaving that bow in its location (preferred for shackles with lower WLL), or by bending one or the other leg of the fiber bow while leaving the rigid rod in its location, or by a combination of these steps, the latter two steps being preferred for shackles with higher WLL.
  • This versatility results in faster handling of the shackles saving thus labor time, less manpower with less tools needed, less chance for injuries and accidents, easier access under dimensional restrictions, e.g. inside space limited plants and more efficient and safer underwater use of the shackles by divers.
  • the hybrid shackle system according to the present invention is at least 55 % lighter (on weight basis) than known steel shackle systems commonly known in the art.
  • “soft shackles” i.e. shackles consisting of polymeric materials
  • the shackle system according to the present invention has an advantageous center of gravity on its rod.
  • each bow in the shackle according to the present invention can carry at least the full load capacity of the shackle (WLL).
  • one bow can freely and independently rotate around the pin, in the free space left by the other bow(s) (excluding the space physically occupied by the other bow(s)), at different angles. For instance, two bows allow two 180 degree connections, three bows allow three 120 degree connections and four bows allows four 90 degree connections.
  • hybrid shackle system a shackle system comprising at least two different kind of materials in its construction, i.e.
  • the hybrid shackle system preferably comprises a flexible material, i.e. polymeric fibrous material and a rigid material, e.g. a metal material.
  • length body is herein understood an elongated body, especially an elongated body comprising fibers, with the length dimension of the lengthy body being much greater than the transverse dimensions of width and thickness.
  • the term lengthy body includes but is not limited to a fiber, monofilament, continuous multifilament yarn, staple fiber yarn, tape, strip, film, strand, cable, cord, rope, ribbon, hose, tube and the like.
  • said length dimension is at least 10 times, more preferably at least 20 times even more preferably at least 50 times and most preferably at least 100 times greater than the width or thickness dimension of the lengthy body, whichever is larger.
  • the length is substantially continuous.
  • the cross-sectional shape of the lengthy body may be from round or almost round, oblong or rectangular shape whereby a lengthy body with a round or almost round cross-section may be but is not limited to filament, fiber, multifilament yarn, staple fiber yarn, strand, cable, cord, rope, hose or tube, while a lengthy body with oblong to rectangular cross-sections are commonly referred to as a tape, film, ribbon or strip.
  • the lengthy body is a flexible member which allows for easy opening and closing of the shackle. Further it allows e.g. for placing a sensor inside the lengthy body to monitor certain conditions of the flexible bow of shackle.
  • the lengthy body may comprise a thread of 2 or more high performance polymeric fibers lying side by side without being twisted around each other.
  • Such thread of untwisted fibers may also be called a bundle and, as elaborated above, may have a variety of cross-sectional shapes.
  • the fibers in a bundle may be substantially oriented in a single direction, e.g. the length direction of the lengthy body.
  • a thread may be comprised of two or more twisted high-performance polymeric fibers, generally referred to as a yarn.
  • Several yarns may be laid in same or different directions to produce a so-called composite bundle or a strand, which again may be aggregated together or in combination with other fiber arrangements to form complex fiber assemblies, such as ropes or ribbons.
  • the arrangement of the fibers one to another in the lengthy body of the invention may be of different types amongst which a parallel, laid, braided or woven fiber or yarn arrangement, or others as may be known to the person skilled in the field.
  • the term bow and lengthy body may be used interchangeable herein.
  • a“yarn” is an elongated body, which may be a monofilament being a fiber or a tape, or a multifilament yarn that comprises a plurality of fibers, i.e. at least 2 fibers.
  • fibers are understood to be elongated bodies with length dimension much greater than their transversal
  • the term fiber includes a monofilament, a ribbon, a strip or a tape and the like, and can have a regular or an irregular cross-section.
  • the fibers may have continuous lengths, known in the art as filaments, or discontinuous lengths, known in the art as staple fibers.
  • a tape for the purposes of the present invention may have a cross-sectional aspect ratio of at least 5:1 , more preferably at least 20:1 , even more preferably at least 100:1 and yet even more preferably at least 1000:1.
  • the width of the tape may be between 1 mm and 200 mm, preferably between 1.5 mm and 50 mm, and more preferably between 2 mm and 20 mm. Thickness of the flat tape preferably is between 10 pm and 200 pm and more preferably between 15 pm and 100 pm.
  • the diameter and the length of the bow(s) (i.e. of the first and/or second bow and/or any additional bow) in the shackle system according to the present invention may vary widely and may depend on the application of the operation the shackle system is employed for.
  • Each bow may have a length of at least 1 cm and at most 100000 cm, preferably of at least 5 cm and at most 500 cm.
  • diameter of a bow is herein understood the largest distance between two opposite locations on the periphery of a cross-section of the bow.
  • Each bow may have a diameter of at least 0.1 cm and at most 100 cm, preferably of at least 0.5 cm and at most 50 cm.
  • the hybrid shackle system according to the invention may have a bow’s width inside (e, see Figure 1a)) in the range of from 15 cm to 150 cm, preferably of from 20 cm to120 cm, more preferably of from 30 cm to 100 cm.
  • a bow outer height may be in the range of from 30 cm to 200 cm, preferably of from 40 cm to 150 cm, more preferably of from 50 cm to 120 cm.
  • the lengthy body is preferably a continuous body that may be a single body and may be made of more building elements.
  • the lengthy body may be twisted at least once along its length, preferably in case it is a strip, in the shackle system according to the present invention.
  • the advantage of this construction is that the internal tension force of the bow(s) is similar or the same as the external tension force of the bow(s), meaning that the length of the bow(s) (or of all building blocks of the lengthy body) is equal, resulting in equal load sharing and thus maximum strength and minimum chance for damage.
  • the lengthy body (or the bow) in the shackle system according to the present invention is terminated by at least one eye, preferably by one eye, at each of the two distal ends located on its axial direction.
  • At least one end of the lengthy body (or bow) can be divided in at least two eyes, preferably in two eyes, by applying any method known in the art.
  • connecting means any device or method to firmly unite the two ends of the lengthy body, e.g. the ends of the load bearing strand in case the lengthy body is a rope.
  • connecting means in the context of the present invention may be air entanglement, splice, stitching, gluing, knotting, bolting, heat sealing riveting or the like, for instance at the overlapping position of the two ends of the lengthy body, e.g. the (two) ends of the primary strands for the case the lengthy body is a rope.
  • the two ends of the lengthy body are connected by a single connecting means. This is advantageous in improving the efficiency of the shackle system.
  • the connecting means is preferably a splice between the two ends (also known as bitter ends) of the lengthy body.
  • the lengthy body preferably comprises substantially parallel arrangement of fibers and yarns
  • said preferred end connection required lengths at both ends of the lengthy body are braided or laid arrangements of the yarns and/or bundles present in the lengthy body. Said braided or laid sections may be spliced with each other to form the end connection. Various known tucked or buried splices may be applied.
  • Splice constructions that may be employed for the present invention are typically well known to the skilled person and are amongst others know from for example Chapter 7 of the Handbook of fibre rope technology (eds McKenna, Hearle and O’Hear, Woodhead Publishing Ltd, ISBN 1 85573 606 3) or WO16059261.
  • the skilled person may attempt to strike a balance between the reliability, including the strength, of the splice and the length of the splice.
  • the splice should be as short as possible but long enough to avoid slippage of the splice.
  • the lengthy body in the shackle system according to the present invention is a rope or a strip, preferably a braided rope or a multilayer strip.
  • a“rope” is an elongated body having a length much larger than its lateral dimensions of for example width and thickness or diameter.
  • the rope may have a cross-section which is circular, rounded, oblong or polygonal or combination thereof.
  • ropes having an oblong cross-section, also referred to as belts, or a circular cross-section are used in hoisting operations.
  • diameter of the rope is herein understood the largest distance between two opposite locations on the periphery of a cross-section of the rope.
  • the diameter of the rope can vary between large limits, e.g. from diameters of 0.5 mm or less, to diameters of up to 200 mm and even up to 500 mm.
  • the diameter of a rope in general, however, is an uncertain parameter for measuring its size, because of irregular boundaries of ropes defined by the strands.
  • a more concise size parameter can be the linear density of a rope, also called titer; which is the mass per unit length.
  • the titer can be expressed in kg/m, but often the textile units denier (g/9000 m) or dtex (g/10000 m) are used.
  • the rope typically comprises at least one strength member comprising primary strands, also known as load carrying strands. It is generally known in the rope manufacturing industry to make a rope structure where yarns containing fibers are aggregated by twisting or other means into larger rope yarns and then the rope yarns are aggregated to form strands.
  • the strand can be made by laying or braiding the rope yarn or can contain parallel yarns, e.g. by laying parallel or twisted bundles of parallel yarns.
  • the strands of the rope may carry at least part of the load generated by said hoisting operation.
  • the strands may be assembled in different ways to form the strength member of the rope.
  • the strength member is a braided construction, a laid construction, a tendon yarn bundle, a and/or a belt.
  • “primary” strands is meant herein those strands that are the first strands that are encountered when the rope is opened up. In general, these are the outermost strands of the rope, but may also include a core strand, if present.
  • the core of a rope may be braided and may have any braiding structure known to the skilled person as for example disclosed for braided ropes in Chapter 3 of the Handbook of fibre rope technology (eds McKenna, Hearle and O’Hear, Woodhead Publishing Ltd, ISBN 1 85573 606 3).
  • Such structure may for example be single braids in a twill or plain weave fashion, plain or hollow, double braids also called braid on braid or solid braids, depending on the properties the chain should have.
  • a typical load bearing strand that may be present in a load bearing core may comprise e.g. 4 bundles, each bundle comprising 24 yarns, whereby the titer may be 1760 dtex. Accordingly, such typical load bearing strand may have a titer of about 170000 dtex.
  • the actual titer of the load bearing strand and load bearing core may vary widely.
  • the titer of the load bearing strand may be of between 2000 and 2000000 dtex, preferably between 4000 and 1000000 dtex and most preferably between 10000 and 500000 dtex.
  • the load bearing core may have a titer of between 10000 and 10000000 dtex, preferably between 50000 and 5000000 dtex and most preferably between 100000 and 2000000 dtex.
  • the primary strands may be made up of further secondary strands, as known in the art. The skilled man in the art can choose the type of construction and titer of the strands in relation to the desired final construction and size of the rope, based on his knowledge or with help of some calculations or experimentation.
  • the secondary strands or rope yarns containing polymeric filaments can be of various constructions. Suitable constructions include twisted multi-filament yarns (or laid ropes); but also braided ropes or cords, like a circular braid, can be used. Suitable constructions are for example mentioned in US 5901632.
  • W02006133881 discloses a braided rope having different types of braides, e.g. soutache braids, tubular braids, or flat braids and braiding periods in the range of from 4 to 20 suitable for bend-over-sheave applications consisting essentially of at least 3 braided primary strands being made of polymeric filaments, which rope has an oblong cross-section with aspect ratio in the range 1.2-4.0.
  • Each primary strand of the rope disclosed in W02006133881 is itself a braided rope, e.g. the primary strands are circular braids made from an even number of secondary strands, also called rope yarns.
  • the number of secondary strands range from 6 to 32; with 8, 12 or 16 being preferred in view available machinery for making such braids.
  • This document also discloses a process to manufacture the rope may comprise a step of braiding primary strands using two counter-rotating horngears/horndogs each having notches for transferring the carriers in a single figure eight track. Such method is referred to as soutache braiding in the art.
  • the lengthy body can be alternatively a braided rope link, as disclosed in WO2017077141 , incorporated herein by reference, the rope comprising a braided core comprising a first primary strand of high-performance polymeric fibers, with the braided core comprising at least 2 consecutive turns of said first primary strand and/or single or multiple turns of further (second, third, etc.) primary strands, each further primary strand forming a single turn or multiple consecutive turns in the braided core.
  • Suitable example of lengthy body is also disclosed in US9296593B2
  • a system for applying a tensile load comprising a length of a single continuous synthetic rope having first and second bitter ends; said continuous synthetic rope being braided with itself to create a sling; wherein when a force is applied to said sling said force is distributed over said sling such that no substantial said force is applied to said first and second bitter ends, with the system comprising markings disposed on said first and said second bitter ends showing movement of said first and second bitter ends relative to each other.
  • the lengthy body may be a strip typically having a longitudinal axis, which may comprise at least 2, 3, 4, 6, 8 or 10 layers, with each layer of said strip comprising a twist along the longitudinal axis of said strip, wherein said twist is an odd multiple of 180 degrees.
  • the layers of the strip comprise high-performance polymeric fibers as described herein, and the layers may be substantially superimposed upon one another or may also be present a lateral offset.
  • the layers may be in direct contact to each other but may also be separated. Separation between the layers may for example be by a further strip of material, an adhesive layer or a coating.
  • strip is herein meant a flexible elongated body having a thickness (t) and a width (w), wherein thickness (t) is much smaller than width (w).
  • the strip may have a width to thickness ratio of at least 5:1 , more preferably at least 10: 1 , the width to thickness ratio preferably being at most 200: 1 , and even more preferably at most 50:1.
  • a strip may as well be called a band or a flat band or a strap or a belt or a narrow weave. Examples of a strip may be a tape, a film or a strap.
  • the strip may be made for example by weaving, plaiting or knitting yarns into any construction known in the art, e.g. a plain and/or twill weave construction for instance.
  • the strip preferably has an n-ply textile webbing construction where n is preferably at most 4, more preferably 3 and most preferably 2.
  • the thickness and width of the strip are not particularly limited. It will be obvious to the skilled person that thickness, width of the strip and the number of layers of said strip may strongly influence the width and thickness of the lengthy body. Thickness of the strip will strongly depend upon the nature of the strip and its material. A typically range of thickness may be between 10 micron and 10 mm, more preferably between 20 micron and 5 mm. The width of the strip of material typically depends on the desired dimensions of the lengthy body.
  • the ends of the strip of material may be connected by connecting means to form the two eyes positioned on the rod of the shackle system according to the present invention, the two ends of the strip overlap then a stitching or welding or gluing or other fastening method may be applied through the strip at said overlapping position, but also perforations, slits or splices may be applied as connection means.
  • the lengthy body may be an endless shaped article comprising: a strip of material forming a plurality of convolutions of the strip of material, the strip having a longitudinal axis, characterized in that each convolution of said strip comprises a twist along the longitudinal axis of said strip, wherein said twist is an odd multiple of 180 degrees, with a convolution of the strip being a length of said strip starting at an arbitrary plane perpendicular to the longitudinal axis of the strip and ending in an endless fashion at the same plane, wherein the strip is coiled into a plurality of overlapping layers that are substantially superimposed upon one another, wherein the convoluted strip comprises at least 4 convolutions.
  • the lengthy body may be an endless shaped article comprising: a strip of material forming a plurality of convolutions of the strip of material, the strip having a longitudinal axis, wherein each convolution of the strip comprises a twist along the longitudinal axis of the strip which is an odd multiple of 180 degrees, wherein each convolution of the strip is a length of the strip starting at an arbitrary plane perpendicular to the
  • the strip is coiled into a plurality of overlapping layers that are substantially superimposed upon one another, and a difference in length between two adjacent convolutions of the strip of material is less than 6 times a thickness of the strip and wherein the endless shaped article comprises at least one fastening element which connects the overlapped opposing ends to one another.
  • the ends of the strip overlap one another and are connected to one another through the thickness of the superimposed layers by at least one fastening means at the overlapping position.
  • the lengthy body may further comprise a protective cover and/or a coating on its surface.
  • a protective cover may be can be any known material, like a knitted, woven or braided fabric, e.g. a woven polyester fabric or braided abrasion resistant UHMWPE cover.
  • the coating may be as for instance described in WO2014/064157A1 , or a coating being a crosslinked silicone, as disclosed in document WO2011/015485, incorporated herein by reference.
  • the lengthy body in particular the braided rope or the strip, may be post-stretched, or its primary strands comprising high-performance polymer fibers may be post-stretched, preferably at a temperature in the range 80-140°C, more preferably between 90 - 130°C to further increase its strength.
  • a post-stretching step is described in documents e.g. EP 0398843 B1 and US 5901632, incorporated herein by reference.
  • high-performance polymeric fibers are herein understood fibers manufactured from a polymer chosen from the group consisting of polyamides and polyaramides, e.g. poly(p-phenylene terephthalamide) (known as Kevlar®);
  • poly(tetrafluoroethylene) PTFE
  • poly ⁇ 2,6-diimidazo-[4,5b-4’,5’e]pyridinylene-1 ,4(2,5- dihydroxy)phenylene ⁇ known as M5
  • poly(p-phenylene-2, 6-benzobisoxazole) PBO
  • Zylon® poly(Zylon®)
  • liquid crystal polymers LCP
  • poly(hexamethyleneadipamide) known as nylon 6,6)
  • poly(4-aminobutyric acid) known as nylon 6
  • polyesters e.g. poly(ethylene terephthalate), poly(butylene terephthalate), and poly(1 ,4
  • the preferred high-performance polymeric fibers are polyaramide fibers and high or ultrahigh molecular weight polyethylene (HMWPE or UHMWPE) fibers.
  • HMWPE fibers are melt spun and the UHMWPE are gel spun, e.g. fibers manufactured by DSM Dyneema, NL.
  • the high-performance polymeric fibers are UHMWPE fibers, more preferably gel spun UHMWPE fibers.
  • the UHMWPE present in the UHMWPE fibers has an intrinsic viscosity (IV) of at least 3 dl/g, more preferably at least 4 dl/g, most preferably at least 5 dl/g.
  • IV is at most 40 dl/g, more preferably at most 30 dl/g, more preferably at most 25 dl/g.
  • the IV may be determined according to ASTM D1601 (2004) at 135°C in decalin, the dissolution time being 16 hours, with BHT (Butylated Hydroxy Toluene) as anti-oxidant in an amount of 2 g/l solution, by extrapolating the viscosity as measured at different concentrations to zero concentration.
  • BHT Butylated Hydroxy Toluene
  • the high-performance polymeric yarns may have a high tenacity and/or a high strength.
  • the high-performance polymeric yarns have a tenacity of at least 1.0 N/Tex, preferably of at least 1.2 N/Tex, more preferably at least 1.5 N/Tex, eve more preferably at least 2.0 N/Tex, yet more preferably at least 2.2 N/Tex and most preferably at least 2.5 N/tex.
  • said UHMWPE yarns preferably have a tenacity of at least 1.8 N/Tex, more preferably of at least 2.5 N/Tex, most preferably at least 3.5 N/Tex.
  • the high-performance polymeric yarn has a modulus of at least 30 N/Tex, more preferably of at least 50 N/Tex, most preferably of at least 60 N/Tex.
  • the UHMWPE yarn has a tensile modulus of at least 50 N/Tex, more preferably of at least 80 N/Tex, most preferably of at least 100 N/Tex.
  • tensile strength and tensile modulus are defined and determined on multifilament yarns as specified in ASTM D885M, using a nominal gauge length of the fibre of 500 mm, a crosshead speed of 50 %/min and Instron 2714 clamps, of type“Fibre Grip D5618C”. The modulus is determined as the gradient between 0.3 and 1 % strain.
  • the lengthy body in the shackle system according to the present invention may have a breaking strength, also called minimum break load (MBL) of at least 0.010 kN, more preferably of at least 50 kN and most preferably of at least 100 kN and at most 1000000 kN.
  • MBL minimum break load
  • the MBL of the lengthy body may be obtained according to ISO 2307“Testing of fiber ropes including determination of their breaking strength”, whereby the tenacity of the synthetic lengthy body is calculated by dividing said MBL by the titer of the lengthy body.
  • the rod and/or the stopping means in the shackle system according to the present invention are rigid.
  • the term“rigid” means herein that the rod and/or stopping means are able to resist flexural bending, tension, compression and bending loads.
  • a rigid material can be a material having a high flexural strength, respectively a high flexural modulus as determined according to 3-points or 4- points deflection test (as measured by standard methods ASTM D790 or ISO
  • the stopping means can be made of any rigid materials known in the art, such as metals, e.g. steel, metal alloys, composite materials, such as fiber reinforced composites, such as composites comprising carbon fiber and/or glass fiber in a thermoset or thermoplastic matrix material; and/or any combinations thereof.
  • the rod and/or the stopping means are made of metal or metal alloys.
  • the bow(s), the rod and/or the stopping means are made independently from a different material, preferably the rod and the stopping means are made from substantially same material, e.g. metal or a fiber reinforced composite, which is different than the material from which the bow(s) is made, i.e. fibrous high- performance polymer as defined herein.
  • the rod and stopping means are made from metal and the bow is, or bows are, made from a fibrous high-performance polymer as defined herein.
  • the rod is a pin.
  • the rod is connected to each of the two eyes of the lengthy body (or of the bow), in assembled position, the rod passes through each of the two eyes formed by the lengthy body.
  • Each end eye has typically two legs formed by the lengthy body.
  • the lengthy body (or the bow(s)) is secured in its position around the rod by stopping means.
  • the rod is terminated on its axial two ends by stopping means, preferably with at least one of the stopping means comprising a thread, more preferably an internal thread, and the stopping mean(s) is rotatably mounted on the axial rod ends comprising a matching thread, more preferably an external thread.
  • the two ends of the bow(s) attached around the rod threads transfer load among the rod threads.
  • the stopping means can be any means knowing in the art that have the function of securing or fixing at least two elements together in a construction.
  • the stopping means in the context of the present invention have the function of securing or fixing the bow and the rod together, e.g. stop the bow from detaching, e.g. sliding or falling away from the rod.
  • Suitable examples of stopping means include a disc and/or a nut or a disc and/or a screwcap, click-on system, secured ring (by pin through bold), shoulders in bold.
  • the stopping means can be of different or the same type and/or material at each axial end of the rod.
  • the stopping means have a circumference larger than the internal circumference of the eyes bow(s).
  • the stopping mean has a circumference of at least twice of the circumference of the rod.
  • the stopping means on each end side of the axis of the rod are substantially identical, more preferably identical, for instance both stopping means are of similar or same type and construction, e.g. screw caps located on the end sides of a pin, and similar or the same material.
  • An advantage of this construction is that the hybrid shackle according to the invention has a symmetric design with identical openings/closing means on both end sides of the axis of the rod.
  • the hybrid shackle system according to the present invention may further comprising a second bow, and optionally additional bows.
  • Each second and optional additional bow achieve at least same minimum break load MBL as the first bow and satisfy the work load limit (WLL) of the shackle.
  • WLL work load limit
  • each bow can independently rotate in the free space around the rod as rotation center made available by the other bow(s).
  • the second bow and each further additional bow may be attached to the same rod at a location that is opposite to (or on the opposite side of) the location of the first bow, for instance with the rod passing through each of the eyes of the second bow and/or any additional bow via two legs.
  • the bow(s) can fall flat forming with the rod a single plane or an angle by free independent rotation.
  • the second bow can alternatively be formed by an extension of the first bow on one side, e.g. the first bow may have in this case a middle eye and two terminal eyes.
  • the end portions of the second bow may be sized and shaped to fit through the same rod threads.
  • the second bow (and any additional bows if present) is substantially identical with the first bow, e.g. in terms of type, construction, type of material, strength.
  • a shackle system with two bows or two bows or more is also typically known in the art as connector. At least one end of at least one lengthy body (or bow) of the connector may be split in at least two eyes. Connectors may link for instance chains with chains or chains with slings. Preferably, one bow freely and independently rotates from another bow around the axis of the rod by forming an angle between the tip of each bow (or between the plane formed by each bow), e.g. an angle between the tip of the first bow and tip of the second bow.
  • the angle formed between the two tips can be at least 0 degree, where the tips of the bows reach minimum distance between each other, or preferably higher than 0 degree, for instance between 10 and 360 degree, preferably between 10 and 360 degree, or between 10; 20; 30; 40; 50; 60; 70; 80; or 90 degree and up to 180 degree or up to 360 degree, in the latter case with the tips of the bows reaching minimum distance again between each other.
  • the tip of a bow is defined herein as the maximum distance from the center of the axis of the cross-section of the rod to the maximum distal extremity of the cross-section of one bow (or lengthy body).
  • each bow in the hybrid shackle according to the present invention is symmetric, i.e. there is an imaginary plane of symmetry, which divides each bow into two parts, which are the mirror images of each other, with each of the two parts having an eye termination and equal strength. This ensures that each bow is also symmetric in strength and in length.
  • Each bow may have a U-shape, a triangular or pyramidal shape.
  • Each bow can individually form a loop together with the rod.
  • each leg of a bow is connected to a single rod, i.e the same rod.
  • the hybrid shackle system according to the present invention can be opened or closed by a process comprising a step of: a) removing the stopping mean(s) and the rod, while each bow is in rest position, and/or b) bending open one bow leg and/or the other bow leg of a bow and/or one bow leg and/or the other bow leg of another bow, while the rod is in rest position.
  • Steps a) and b) can also be combined, e.g. by simultaneously opening of the stopping means and moving the rod partly and bending open a bow leg, preferably by bending a bow’s bitter end away from the rod and moving the rod away from the bow’s bitter end after turning a nut.
  • the hybrid shackle system according to the invention can be used for lifting, transferring load (e.g. between itself and in between link chains, wire, rope, synthetic chains, endless structures, grommets, slings, steel shackles, steel connectors, master links, drilled plates, hooks, loops, links, snatch blocks & snatchers, sheaves & wheels), securing, hoisting, connecting, mooring, clamping, tightening, tensioning in the fields of aviation and aerospace, marine, offshore, energy and utilities, infrastructure, building & construction, engineering, manufacturing and materials handling, transport, fish farming, agriculture, defense, vehicles.
  • the present invention directs to a lifting system comprising the hybrid shackle system according to the invention.
  • the present invention also relates to a process for manufacturing the hybrid shackle system according to the invention by any method known in the art, i.e. by assembling together the at least first bow comprising a lengthy body comprising high-performance polymeric fibers, the rod and then securing the at least first bow to the rod by using stopping means.
  • the present invention also relates to a process for lifting a load by using the hybrid shackle system according to the present invention.
  • Figure 1c schematically depicts an embodiment of the hybrid shackle system according to the invention.
  • the hybrid shackle system (1) comprises a first bow (2) and a rod (4).
  • the first bow is a lengthy body having two ends.
  • the lengthy body is at each of the two ends terminated by an eye (3a, 3b).
  • the rod passes through each of the two eyes.
  • the rod comprises a stopping means (5).
  • Figure 2a schematically depicts another embodiment of the hybrid shackle system (21) according to the invention.
  • the hybrid shackle system (21) comprises a first bow (a’) and a rod (24, also referred to as b’) .
  • the first bow is a lengthy body having two ends. The lengthy body is at each of the two ends terminated by an eye.
  • the rod comprises a stopping means (25a also referred to a G, and 25b).
  • the system comprises a second bow (a”).
  • the bows are arranged such that they can independently rotate from each other around the axis of the rod by forming an angle of higher than 10 degrees and up to 180 degrees between the tip of each bow (26a, 26b).
  • the first bow is a bow as described in figure 3 herein.
  • the first bow is a bow as described in figure 5 herein.
  • the first and second bow are a bow as described for figure 3 herein.
  • the first and second bow are a bow as described for figure 5 herein.
  • Figure 3 is a photograph of an embodiment of the hybrid shackle system according to the invention.
  • the hybrid shackle system (31) comprises a first bow (32) and a rod (34).
  • the first bow is a lengthy body having two ends.
  • the lengthy body is at each of the two ends terminated by an eye (33a, 33b).
  • the lengthy body has two legs (32a and 32 b).
  • the rod passes through each of the two eyes.
  • the rod comprises a stopping means at each of the eyes (35a, 35b).
  • the rod in this embodiment is a screw bolt with a nut, whereby the bolt (5b) forms the first stoppings means and the nut (5a) forms the second stopping means.
  • the nut (5a) comprises a thread and is rotatably mounted on one end of the rod, and the nut comprises a thread matching the thread of the one end of the rod.
  • the bow is a braided endless synthetic structure from a single rope made from Dyneema® yarn (as decribed in example 1).
  • the braided endless synthetic structure comprises a braided bow (32) comprising a first primary strand (36), the first primary strand comprises performance polymeric fibers (UHMWPE Dyneema ® fiber grade DM20), the performance polymeric fibers have a tenacity of at least 1.0 N/tex.
  • the bow comprises at least 2 consecutive turns of said first primary strand and the turns of this strand have a braided nature to form the braided endless synthetic structure.
  • the braided endless structure has been braided such that it forms an eye and eye sling, which is referred to in example 1 as a grommet braided rope.
  • the one stopping means, in figure 3 a nut (5a) is removed, thus allowing for the bow to be bended open (which may also be referred to as straitened) such that for the eye (33a), which is located at the former location of the stopping means, in figure 3 the nut, can be removed from the rod.
  • the bow of the shackle is opened. Because the bow is flexible this bending open (which may also be referred to as straitening) is much easier to do by a person than if the bow were rigid e.g. made from metal.
  • the shackle is an industrial hybrid shackle system having a bow’s width inside (e) in the range of from 15 cm to 150 cm, preferably of from 20 cm to 120 cm, more preferably of from 30 cm to 100 cm.
  • the bow outer height (g) may be in the range of from 30 cm to 200 cm, preferably of from 40 cm to 150 cm, more preferably of from 50 cm to
  • a shackle is made entirely of steel, opening and closing may be, especially for industrial shackles, a very heavy and cumbersome job.
  • a crane is needed and / or multiple people to handle opening and closure of the shackle.
  • additional aids such as a crane or additional people are needed to connect or disconnect the hybrid shackle system to or from e.g. a rope, such as to the eye of a rope, a sling, or an element of a chain.
  • the stoppings means may be a nut or a screw cap with an inner thread that matches the outer thread rod.
  • both the first and second stopping means are removably connected to the rod: for example the rod is a pin with thread at the surface of both ends and the stopping means are 2 nuts or 2 screw caps or a combination of a nut and a screw cap with a matching thread at their inner surface.
  • the flexible bow allows for the shackle to be easily opened from either end: the end with eye 3a or the end with eye 3b. This increases flexibility in the way of working with the shackle.
  • FIG. 4 is a perspective view of an embodiment of an elongated body suitable for use in the hybrid shackle system according to the invention. The lengthy body is made using a strip twisted at least once along its length.
  • the elongated body is an endless shaped article comprising a strip of material forming a plurality of convolutions of the strip of material, the strip having a longitudinal axis, characterized in that each convolution of said strip comprises a twist along the longitudinal axis of said strip, wherein said twist is an odd multiple of 180 degrees, with a convolution of the strip being a length of said strip starting at an arbitrary plane perpendicular to the longitudinal axis of the strip and ending in an endless fashion at the same plane, wherein the strip is coiled into a plurality of overlapping layers that are substantially superimposed upon one another, and wherein a difference in length between two adjacent convolutions of the strip material is less than 6 times a thickness of the strip and wherein the ends of the strip overlap one another to form an overlapping position.
  • the ends of the strip are connected to one another through the endless shaped article at the overlapping position by at least one fastening means.
  • each convolution of the strip (10) of material comprises a twist (14) of an odd multiple of 180 degrees along its longitudinal axis, preferably the odd multiple is one.
  • Said twist (14) of an odd multiple of 180 degrees will result in an endless shaped article 12 comprising a twist of an odd multiple of 180 degrees along its longitudinal axis A2.
  • At least 2 convolutions of the strip (10) of material are connected to each other by at least one fastening element.
  • fastening elements are stitching, glue, knotting, bolt, heat sealing, rivets or the like.
  • the two ends (10a, 10b) of the strip (10) of material are connected by at least one fastening element such as stitching in the region (16) shown schematically in Figure 4.
  • a construction may for example be achieved by adjustment of the lengths of the strip (10) of material such that the two ends (10a, 10b) of the strip (10) overlap and applying a stitching in the region (16) through the endless shaped article (12) at said overlapping position of the two ends (10a, 10b). It was observed that a construction according to this embodiment resulted in an optimized efficiency of the endless shaped article (12).
  • FIG. 5 is a photograph of an embodiment of an hybrid shackle system according to the invention.
  • the hybrid shackle system (51) comprises a first bow (52) and a rod (54).
  • the first bow is a lengthy body having two ends.
  • the lengthy body is at each of the two ends terminated by an eye (53a, 53b).
  • the lengthy body has two legs (52a and 52 b).
  • the rod passes through each of the two eyes.
  • the rod comprises a stopping means at each of the eyes (55a, 5b).
  • the rod in this embodiment is a screw bolt with a nut, whereby the bolt (55b) forms the first stoppings means and the nut (55a) forms the second stopping means.
  • the nut (55a) comprises a thread and is rotatably mounted on one end of the rod, and the nut comprises a thread matching to the bolt.
  • both the first and second stopping means are removably connected to the rod (see figure 3 description for more details)
  • the elongated body in this embodiment is an endless shaped article as depicted in figure 4 which has been bended and to which, the by the use of fastening means 57a and 57b (such as a piece of tape as shown on the photo), two eyes (53a, 53b) have been formed.
  • fastening elements in the context of the present invention include stitching, glue, knotting, bolt, heat sealing, rivets or the like.
  • the twist results in both eyes being positioned perpendicular to the top of the bow. This way the tip of the bow (56) is in a tension free position to receive a crane hook. During use the tip of the bow is perpendicular to the crane hook. The twist also forces the eyes (53a and 53b) to“look at each other” (are in a parallel position) and as a result the pin
  • (54) can be placed through both eyes without tension .
  • a hybrid shackle system comprising a first bow and a rod, wherein:
  • the first bow is a lengthy body having two ends, the lengthy body is terminated by at least one eye at each of the two ends, and the lengthy body comprises high-performance polymeric fibers;
  • the rod in assembled position, passes through each of the at least two eyes; and the rod ends by at least one stopping means.
  • the lengthy body comprises at least 90% high-performance polymeric fibers based on its total weight, preferably the lengthy body comprises at least 80% high-performance polymeric fibers based on its total weight, preferably the lengthy body comprises at least 70% high-performance polymeric fibers based on its total weight.
  • the length body is a braided rope, a twisted rope or a bended tendon made from high-performance polymeric fibers, preferably the lengthy body is braided rope made from high-performance polymeric fibers.
  • the length body comprises a braided bow comprising a first primary strand, the first primary strand comprising performance polymeric fibers, the performance polymeric fibers having a tenacity of at least 1.0 N/tex, and wherein the braided bow comprises at least 2 consecutive turns of said first primary strand and wherein the turns have a braided nature.
  • the length body comprises a braided bow and wherein the first primary strand is a braided or twisted rope or wherein the first primary strand is a laid rope.
  • the length body comprises a braided bow and wherein the braided bow comprises at least 3, preferably at least 4, more preferably at least 6 consecutive turns of the first primary strand.
  • the length body comprises a braided bow having an braided endless structure which has been braided to form an eye and eye sling.
  • elongated body is an endless shaped article comprising at least one strip of material forming a plurality of convolutions of the strip of material, the strip having a longitudinal axis, characterized in that each convolution of said strip comprises a twist along the longitudinal axis of said strip, wherein said twist is an odd multiple of 180 degrees
  • elongated body is an endless shaped article comprising a strip of material forming a plurality of convolutions of the strip of material, the strip having a longitudinal axis, characterized in that each convolution of said strip comprises a twist along the longitudinal axis of said strip, wherein said twist is an odd multiple of 180 degrees, with a convolution of the strip being a length of said strip starting at an arbitrary plane perpendicular to the longitudinal axis of the strip and ending in an endless fashion at the same plane, wherein the strip is coiled into a plurality of overlapping layers that are substantially superimposed upon one another, wherein the convoluted strip comprises at least 4
  • elongated body is an endless shaped article comprising a strip of material forming a plurality of convolutions of the strip of material, the strip having a longitudinal axis, characterized in that each convolution of said strip comprises a twist along the longitudinal axis of said strip, wherein said twist is an odd multiple of 180 degrees, with a convolution of the strip being a length of said strip starting at an arbitrary plane perpendicular to the longitudinal axis of the strip and ending in an endless fashion at the same plane, wherein the strip is coiled into a plurality of overlapping layers that are substantially superimposed upon one another, and wherein a difference in length between two adjacent convolutions of the strip material is less than 6 times a thickness of the strip and wherein the ends of the strip overlap one another to form an overlapping position.
  • elongated body is an endless shaped article and wherein the overlapped opposing ends are connected to one another by stitches extending through a thickness of the overlapping layers.
  • elongated body is an endless shaped article and wherein a length of each convolution differs from an average length of all convolutions by less than 6 times the thickness of the strip.
  • elongated body is an endless shaped article, wherein the article has a density which is at least 70% of a density of the strip of material.
  • elongated body is an endless shaped article and wherein the article is selected from the group consisting of slings, loops, belts and chain links.
  • elongated body is an endless shaped article and wherein the strip of material comprises an ultrahigh molecular weight (UHMWPE) tape and/or an UHMWPE yarn.
  • UHMWPE ultrahigh molecular weight
  • elongated body is an endless shaped article and wherein the at least one fastening element is selected from the group consisting of stitches, glue, knots, bolts, heat seals and rivets.
  • hybrid shackle system according to any preceding embodiment, wherein elongated body is an endless shaped article and wherein a length of each convolution differs from an average length of all convolutions by less than 2 times the thickness of the strip.
  • hybrid shackle system according to any preceding embodiment, wherein elongated body is an endless shaped article and wherein a difference in length between two adjacent convolutions of the strip is less than 4 times a thickness of the strip.
  • elongated body is an endless shaped article and wherein the article forms an 0- shape sling bearing a 180 degree twist in each convolution of the strip.
  • elongated body is an endless shaped article and wherein the strip has a ratio of width to thickness of at least 5:1.
  • elongated body is an endless shaped article and wherein the strip has a thickness of between 20 microns and 5 mm.
  • elongated body is an endless shaped article and wherein the strip is a strap having an n-ply webbing construction, wherein n is at most 4.
  • each of the two ends comprise one eye and both eyes are connected to the same rod.
  • the stopping means comprises a stopping means thread and is rotatably mounted on one end of the rod, and the rod comprises a rod thread matching the stopping means thread.
  • the rod is terminated on each end by at least one stopping means, with the stopping means comprising an internal thread and being rotatably mounted on an axial end of the rod, the rod comprising a matching external thread, preferably the stopping means having a circumference larger than the internal circumference of the eyes of the first bow.
  • hybrid shackle system according to any of the preceding embodiments further comprising a second bow.
  • the hybrid shackle system according to any of the preceding embodiments further comprising a second bow, wherein the second bow is an elongated body as defined in any preceding embodiment.
  • the stopping means b) positioning the stopping means to the rod such that the rod comprises a stopping means located at each end of the rod and runs through both eyes, whereby the eyes are located in between the stopping means.
  • a bow’s width inside is in the range of from 15 cm to 150 cm, preferably of from 20 cm to 120 cm, more preferably of from 30 cm to 100 cm.
  • a bow outer height is in the range of from 30 cm to 200 cm, preferably of from 40 cm to 150 cm, more preferably of from 50 cm to 120 cm.
  • a lifting system comprising the hybrid shackle system according to any one of the preceding embodiments.
  • a lifting system comprising a sling, a rope or a chain connected to said shackle system.
  • IV the Intrinsic Viscosity is determined according to method ASTM D1601 (2004) at 135°C in decalin, the dissolution time being 16 hours, with BHT (Butylated Hydroxy Toluene) as anti-oxidant in an amount of 2 g/l solution, by extrapolating the viscosity as measured at different concentrations to zero concentration.
  • BHT Butylated Hydroxy Toluene
  • Tensile properties tensile strength (or strength) and tensile modulus (or modulus) are defined and determined on multifilament yarns as specified in ASTM D885M (2014), using a nominal gauge length of the fiber of 500 mm, a crosshead speed of 50 %/min and Instron 2714 clamps, of type“Fiber Grip D5618C”. On the basis of the measured stress-strain curve the modulus is determined as the gradient between 0.3 and 1 % strain. For calculation of the modulus and strength, the tensile forces measured are divided by the titre, as determined above; values in GPa are calculated assuming a density of 0.975 g/cm 3 for the HPPE.
  • Breaking strength of the shackle was determined according to ISO 6892- 1 :2016“Tensile test of metallic materials” on dry samples using a horizontal tensile tester with a max load capacity of 15000 kN at a temperature of approximately 21 degree C, and at bench velocity of 100 mm/min.
  • the shackle was fixed on one fork clamp side of the tensile tester by putting the steel pin of the fork clamp through the textile bow of the shackle.
  • the rod was connected to the other fork clamp side of the tensile tester by using an UHMWPE fiber rope.
  • the auxiliary steel pin as well the auxiliary UHMWPE fiber rope had a significant higher MBL than the tested shackles themselves.
  • the horizontal tensile tester was covered by bunker plates against debris from broken shackle parts. Before the final break test to measure MBL, the shackle was five times stepwise pre-loaded with increasing partial MBL of 5 %; 10 %; 20 % 30 % and 50 % and held for 1 minute. In between pre-loads, load was relaxed to 0.05 kN.
  • a commercially available steel shackle Green Pin® G-4153 was commercially purchased from Van Beest B.V.
  • the shackle contained stopping means, i.e. a screw with nut secured by a wire. This shackle was tested for minimum break load MBL in a horizontal tensile 200 tons test bench.
  • the shackle was connected on each side to a fork clamp of the test bench looped with a synthetic rope made from a Dyneema® fiber of 100 tons MBL.
  • Breaking strength of the shackle was determined according to ISO 6892-1 :2016“Tensile test of metallic materials” on dry samples using a horizontal tensile tester with a max load capacity of 15000 kN at a temperature of approximately 21 degree C, and at bench velocity of 100 mm/min.
  • a hybrid shackle known as Non-Swiveling Connector Part Number 35-20 NS was made commercially available from EquipLite B.V.
  • the bow (i.e. lengthy body) of this shackle was a rope made of UHMWPE fibers (Dyneema® SK99 fibers with a titer of 880 dtex; fiber twist Z40; tenacity of 42.5 cN/dtex) with a rope diameter of 35 mm.
  • the connector weight is 650 gram.
  • this shackle is asymmetrical due to the single sided rope, which is connected through a hollow metal tube, forming a loop.
  • the hollow tube serves like the pin (rod) in steel shackles, however, it cannot be fully separated from the textile (fiber) bow like in industrial steel shackles where the pin can be fully pulled out of the bow.
  • the bow of this shackle has four legs originating from the double construed bow. The connector is closed with a Velcro® tape wrapped around the four legs the bow. This shackle can only be opened again by removing the wrapped tape, then removing one bow loop from the tube followed by bending two of the four legs. This shackle has thus an unsafe and complex design and it is difficult to open, close or connect to other elements.
  • Table 1 shows data on measured weight of the shackle.
  • Table 2 shows data on bow thickness‘a’ of the shackle.
  • Table 3 shows data on inner bow height‘f of the shackle.
  • a commercially available steel shackle Green Pin® G-4153 was purchased from Van Beest B.V. (which is the same as the shackle used in CE1).
  • the steel pin of this shackle was modified by putting a screw cap on its each side and obtaining in this way a completely symmetric design of this shackle with identical openings on both sides of the pin.
  • the rope was secured with a welded steel disc against the steel screw cap.
  • the hybrid shackle with steel pin and textile bow were tested for minimum break load (MBL) in a horizontal tensile test bench.
  • Tables 1-3 shows more than 50% weight saving for the hybrid shackle according to the present invention (Ex. 1) in comparison to the steel shackle (CE1).
  • the steel bow of CE1 was entirely replaced by a bow made by the synthetic rope from UHMWPE fibers (Ex. 1), the synthetic bow showed only a minor to moderate increase in dimensions compared to the compact steel bow between +5 % and +26.3 %. That allows a similar industrial use of the hybrid shackle according to the present invention without compromising in strength, safety and space needed.
  • Remarkable versatile for industrial use are the observed three options for rapid safe closing and opening of the hybrid shackle, i.e.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ropes Or Cables (AREA)

Abstract

La présente invention concerne un système de manille hybride comprenant un premier arc et une tige, caractérisé en ce que : le premier arc est un corps allongé ayant deux extrémités, le corps allongé se termine par au moins un oeillet à chacune de ces deux extrémités, et le corps allongé comprend des fibres polymères haute performance; la tige, en position assemblée, traverse chacun desdits au moins deux oeillets; et la tige se termine par au moins un moyen d'arrêt. En outre, l'invention concerne un procédé destiné à ouvrir ou fermer le système de manille hybride selon l'une des revendications précédentes, comprenant une étape consistant : a) à enlever le moyen d'arrêt et la tige, alors chaque arc est en position inactive, et/ou b) à plier en ouverture une branche d'arc et/ou l'autre branche d'arc et/ou une branche d'arc et/ou l'autre branche d'arc d'un ou plusieurs autres arcs, le cas échéant, alors que la tige est en position inactive. La présente invention concerne également l'utilisation du système de manille de matériau hybride à des fins de levage, de transfert de charge, de fixation, de hissage, de raccordement, de mouillage, de bridage, de serrage et de mise en tension, dans les domaines de l'aviation et de l'aérospatiale, de la marine, des sites offshore, de l'énergie et des installations techniques, de l'infrastructure, du bâtiment et de la construction, de l'ingénierie, de la fabrication et de la manutention, du transport, de la pisciculture, de la défenses et des véhicules.
PCT/EP2020/051855 2019-01-25 2020-01-27 Système de manille hybride WO2020070342A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP19153755 2019-01-25
EP19153755.4 2019-01-25

Publications (1)

Publication Number Publication Date
WO2020070342A1 true WO2020070342A1 (fr) 2020-04-09

Family

ID=65236887

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2020/051855 WO2020070342A1 (fr) 2019-01-25 2020-01-27 Système de manille hybride

Country Status (1)

Country Link
WO (1) WO2020070342A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020233985A1 (fr) * 2019-05-21 2020-11-26 Rud Ketten Rieger & Dietz Gmbh U. Co. Kg Segment de chaîne comprenant des maillons de chaîne textiles constitués de matériau de sangle tordu

Citations (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0398843B1 (fr) 1989-05-17 1993-01-27 Ciba-Geigy Ag Compositions lubrifiantes
US5901632A (en) 1997-06-10 1999-05-11 Puget Sound Rope Corporation Rope construction
DE29915850U1 (de) * 1999-09-09 2000-01-05 Theile J D Gmbh Bügelschloß mit Gelenkbolzen und darauf angeordnetem Sicherungselement
WO2001042682A1 (fr) * 1999-12-11 2001-06-14 Curchod Donald B Systeme d'attache par boucle de cordage pour bateaux de plaisance
WO2001073173A1 (fr) 2000-03-27 2001-10-04 Honeywell International Inc. Filament a tenacite et module eleves
EP1699954A1 (fr) 2004-01-01 2006-09-13 DSMIP Assets B.V. Procédé de fabrication d'un fil multifilaments en polyethylène a hautes performances
WO2006133881A2 (fr) 2005-06-13 2006-12-21 Dsm Ip Assets B.V. Fabrication de cable tresse
US20090008953A1 (en) 2004-10-07 2009-01-08 Bisso Iv William A Shackle
WO2009115249A1 (fr) * 2008-03-17 2009-09-24 Dsm Ip Assets B.V. Chaîne à maillons
WO2011015485A1 (fr) 2009-08-04 2011-02-10 Dsm Ip Assets B.V. Fibres revêtues de résistance élevée
US8205922B1 (en) 2011-04-07 2012-06-26 The Crosby Group LLC Grommet shackle
US20120159987A1 (en) * 2011-04-01 2012-06-28 Kurt Walchle Paracord bracelet with shackle connector
WO2012139934A1 (fr) 2011-04-13 2012-10-18 Dsm Ip Assets B.V. Fibre d'uhmwpe à comportement au fluage optimisé
WO2013186206A1 (fr) 2012-06-11 2013-12-19 Dsm Ip Assets B.V. Objet à forme sans fin
WO2014064157A1 (fr) 2012-10-23 2014-05-01 Dsm Ip Assets B.V. Utilisation d'un produit optimisé fléchissant tel qu'une corde
US9296593B2 (en) 2013-03-15 2016-03-29 Yale Cordage Inc. Multi part synthetic eye and eye sling
WO2016059261A2 (fr) 2015-03-02 2016-04-21 Dsm Ip Assets B.V. Épissure à faible glissement
WO2017077141A2 (fr) 2016-06-03 2017-05-11 Dsm Ip Assets B.V. Chaîne à maillon de chaîne tressée sans fil
US20170334533A1 (en) 2014-11-07 2017-11-23 Edward J. Herman Soft shackle and method of making
EP3369964A1 (fr) * 2017-03-02 2018-09-05 Rotortug Holding B.V. Lien intelligent

Patent Citations (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0398843B1 (fr) 1989-05-17 1993-01-27 Ciba-Geigy Ag Compositions lubrifiantes
US5901632A (en) 1997-06-10 1999-05-11 Puget Sound Rope Corporation Rope construction
DE29915850U1 (de) * 1999-09-09 2000-01-05 Theile J D Gmbh Bügelschloß mit Gelenkbolzen und darauf angeordnetem Sicherungselement
WO2001042682A1 (fr) * 1999-12-11 2001-06-14 Curchod Donald B Systeme d'attache par boucle de cordage pour bateaux de plaisance
US20030000442A1 (en) 1999-12-11 2003-01-02 Curchod Donald B. Rope loop connection system for yachts
WO2001073173A1 (fr) 2000-03-27 2001-10-04 Honeywell International Inc. Filament a tenacite et module eleves
EP1699954A1 (fr) 2004-01-01 2006-09-13 DSMIP Assets B.V. Procédé de fabrication d'un fil multifilaments en polyethylène a hautes performances
US20090008953A1 (en) 2004-10-07 2009-01-08 Bisso Iv William A Shackle
WO2006133881A2 (fr) 2005-06-13 2006-12-21 Dsm Ip Assets B.V. Fabrication de cable tresse
WO2009115249A1 (fr) * 2008-03-17 2009-09-24 Dsm Ip Assets B.V. Chaîne à maillons
WO2011015485A1 (fr) 2009-08-04 2011-02-10 Dsm Ip Assets B.V. Fibres revêtues de résistance élevée
US20120159987A1 (en) * 2011-04-01 2012-06-28 Kurt Walchle Paracord bracelet with shackle connector
US8205922B1 (en) 2011-04-07 2012-06-26 The Crosby Group LLC Grommet shackle
WO2012139934A1 (fr) 2011-04-13 2012-10-18 Dsm Ip Assets B.V. Fibre d'uhmwpe à comportement au fluage optimisé
WO2013186206A1 (fr) 2012-06-11 2013-12-19 Dsm Ip Assets B.V. Objet à forme sans fin
WO2014064157A1 (fr) 2012-10-23 2014-05-01 Dsm Ip Assets B.V. Utilisation d'un produit optimisé fléchissant tel qu'une corde
US9296593B2 (en) 2013-03-15 2016-03-29 Yale Cordage Inc. Multi part synthetic eye and eye sling
US20170334533A1 (en) 2014-11-07 2017-11-23 Edward J. Herman Soft shackle and method of making
WO2016059261A2 (fr) 2015-03-02 2016-04-21 Dsm Ip Assets B.V. Épissure à faible glissement
WO2017077141A2 (fr) 2016-06-03 2017-05-11 Dsm Ip Assets B.V. Chaîne à maillon de chaîne tressée sans fil
EP3369964A1 (fr) * 2017-03-02 2018-09-05 Rotortug Holding B.V. Lien intelligent

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"Advanced Fibre Spinning Technology", 1994, WOODHEAD PUBLISHING LTD, pages: 1 - 34,75-100

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020233985A1 (fr) * 2019-05-21 2020-11-26 Rud Ketten Rieger & Dietz Gmbh U. Co. Kg Segment de chaîne comprenant des maillons de chaîne textiles constitués de matériau de sangle tordu

Similar Documents

Publication Publication Date Title
EP2122194B1 (fr) Chaîne comprenant une pluralité de chaînons interconnectés
EP2252808B1 (fr) Chaine a maillons
CN109195898B (zh) 具有环状编织链节的链条
AU2014363583B2 (en) Chain comprising polymeric links and a spacer
US20150267347A1 (en) Chafe protected rope and protective cover therefore
US20210356018A1 (en) Heavy-duty hoist chain
WO2020070342A1 (fr) Système de manille hybride
US20150337490A1 (en) Rope products, systems, methods and applications
WO2016189119A1 (fr) Maillon de chaîne hybride
CN218842720U (zh) 一种内芯和护套可嵌套连接的复编缆绳
WO2020016461A1 (fr) Élingue ronde
EP3464151A2 (fr) Chaîne à maillon de chaîne tressée sans fil
CA2984062A1 (fr) Maillon de chaine en polymere

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: 20701205

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: 20701205

Country of ref document: EP

Kind code of ref document: A1