EP0508889A1 - Geschlossene Schlinge mit einer selbstklemmenden Schlaufe - Google Patents

Geschlossene Schlinge mit einer selbstklemmenden Schlaufe Download PDF

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Publication number
EP0508889A1
EP0508889A1 EP92400977A EP92400977A EP0508889A1 EP 0508889 A1 EP0508889 A1 EP 0508889A1 EP 92400977 A EP92400977 A EP 92400977A EP 92400977 A EP92400977 A EP 92400977A EP 0508889 A1 EP0508889 A1 EP 0508889A1
Authority
EP
European Patent Office
Prior art keywords
loop
tightening
loops
sling
lifting
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.)
Granted
Application number
EP92400977A
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English (en)
French (fr)
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EP0508889B1 (de
Inventor
Philippe Barra
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0508889A1 publication Critical patent/EP0508889A1/de
Application granted granted Critical
Publication of EP0508889B1 publication Critical patent/EP0508889B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets

Definitions

  • the subject of the present invention is a closed sling with a self-tightening loop.
  • a sling of this type is known under the name "cinching". It is constituted by a metallic wire, steel noted, whose two ends are permanently fixed to each other; this wire forms an eight whose loops are folded over one another and connected together, on their common part, by sliding sleeves; the smallest loop is intended to surround the package and to self-tighten on it when the largest so-called lifting loop is suspended from a hook and that said package by weighing on it tends to lengthen it by narrowing the the smallest so-called tightening loop.
  • This sling has the disadvantage of consuming substantially twice as much metal wire as an ordinary endless sling normally arranged, that is to say without "dead tower" around the package.
  • its advantages are manifold: it ensures that the elements making up the load are joined together and prevents the load from sliding, whether unitary or composite.
  • the object of the present invention is to remedy this drawback by proposing a single sling which retains all the advantages of the aforementioned multiple slings, namely self-tightening of the package, the ease of fitting and removing the sling, the increase in lifting force.
  • the same sling comprises at least two lifting loops formed in the same metal wire as at least one tightening loop.
  • a ring constituted by the wire whose ends are permanently fixed to each other is formed into a double eight and folded back on itself in a Z at the location of the nodes so that the extreme loop and the largest intermediate loop or loops are superimposed between them and the another smaller extreme loop, the large loops for lifting and the small loop for self-tightening.
  • the means of fixing the ends of the metal wire is located at the top of the tightening loop in the middle.
  • the sling is constituted by a single metal wire, advantageously made of steel, the ends of which are solidly and definitively fixed together, in particular by means of a splice 1.
  • the pre-blank thus obtained is then a closed ring 2.
  • the sling comprises a tightening loop 3 and two lifting loops 4, 5 extending one, the other without a solution of continuity.
  • the loop 3 is intended to be threaded onto the package to be moved and when the loops 4 and 5 are taken by a hook of a lifting machine they cause the tightening of the loop 3 on the package.
  • the lifting force depends on the original wire section and corresponds to the sum of the wire sections of loops 4 and 5.
  • the single self-tightening loop 3 cannot break, since the development of the sling is continuous.
  • a flat blank 6 in double eight is formed therewith, that is to say a geometric figure with three loops shown diagrammatically in FIG. 2.
  • An extreme loop and a middle loop of the same outline are intended to constitute the two aforementioned lifting loops 4 and 5, while the other extreme loop of smaller diameter than the previous ones is the self-tightening loop 3.
  • the following operation illustrated by FIG. 3, consists in folding the blank 6 in Z at the location of the crossing nodes 7 and 8 of the loops considered 3 to 5 and in folding down the loops 4 and 5 l according to the arrow F one on the other and along arrow G, these two loops on loop 3, so as to obtain the almost completed sling 9 shown, in a more or less exploded manner for greater clarity, in FIG. 4.
  • sliding sleeves 10 connect the three loops 3 to 5 in their neighboring parts intended to be in contact with the package and the sling is then obtained closed 11 shown in Figure 5.
  • the splice 1 or other fastening means ligature, clip, collar, crimping sleeve, is located at the top of the tightening loop 3, substantially in the middle.
  • the sling can comprise more than two lifting loops, which is illustrated by the second embodiment according to FIGS. 6 and 7.
  • the blank 12 shown in FIG. 6 has three lifting loops 4, 13, 5 and a tightening loop 3 formed in the pre-blank ring 2, loops which are connected together by crossing nodes 7, 14 and 8 offering no resistance to the sliding of the original wire.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
EP92400977A 1991-04-11 1992-04-08 Geschlossene Schlinge mit einer selbstklemmenden Schlaufe Expired - Lifetime EP0508889B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9104441 1991-04-11
FR9104441A FR2675136B1 (fr) 1991-04-11 1991-04-11 Elingue fermee a boucle autoserrante.

Publications (2)

Publication Number Publication Date
EP0508889A1 true EP0508889A1 (de) 1992-10-14
EP0508889B1 EP0508889B1 (de) 1995-01-18

Family

ID=9411730

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92400977A Expired - Lifetime EP0508889B1 (de) 1991-04-11 1992-04-08 Geschlossene Schlinge mit einer selbstklemmenden Schlaufe

Country Status (6)

Country Link
US (1) US5330240A (de)
EP (1) EP0508889B1 (de)
CA (1) CA2065702A1 (de)
DE (1) DE69201209D1 (de)
FR (1) FR2675136B1 (de)
RU (1) RU2085469C1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11312596B2 (en) 2012-06-11 2022-04-26 Dsm Ip Assets B.V. Endless shaped article

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE520807C2 (sv) * 2000-03-16 2003-08-26 Frenolink Foervaltnings Ab Metod för säkerhetsmätning för lyftslingor, lyftslinga samt säkerhetsetikett
US6447035B1 (en) * 2001-06-20 2002-09-10 Bernard J. Kohout Floating rings sling
GB2539974B (en) * 2015-07-02 2017-12-20 Bisbee Andrew Carrying aid with noose
JP7310776B2 (ja) * 2020-10-14 2023-07-19 Ｊｆｅスチール株式会社 スリングならびに斜管修正方法および管搬送方法
RU205029U1 (ru) * 2021-03-31 2021-06-24 Александр Яковлевич Почекутов Пакетирующий петлевой текстильный строп
CN117466165B (zh) * 2023-12-26 2024-03-22 中国建筑第五工程局有限公司 一种建筑施工用安全吊装装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR612309A (fr) * 1926-02-02 1926-09-21 Procédé de chargement et de déchargement de marchandises ayant la forme de barresou autres analogues
FR1398950A (fr) * 1964-04-03 1965-05-14 Anneau de manutention
BE787322A (fr) * 1972-08-08 1972-12-01 Usines Gonzalez Cock Dispositif d'immobilisation l'un par rapport a l'autre de deux brins decables.
US3861734A (en) * 1973-06-05 1975-01-21 Welch Maxine Tubular safety pick-up sling
US4022507A (en) * 1976-03-17 1977-05-10 Marino Systems, Inc. Self-cinching cargo sling
FR2372736A1 (en) * 1976-12-01 1978-06-30 Sars Francois De Fire-wood bundle securing wire arrangement - consists of two hoops and fastenings forming carrying handle
FR2499521A1 (fr) * 1981-02-09 1982-08-13 Stas Soc Tech Access Spec Sangle de bottelage
US4565399A (en) * 1979-09-25 1986-01-21 Cranston Ky Disposable lifting loop and method of lifting a cargo load therewith

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1573878A (en) * 1925-04-25 1926-02-23 Elden L Smith Hoisting sling
US1686288A (en) * 1927-08-25 1928-10-02 American Cable Co Inc Rope sling
GB423391A (en) * 1933-12-12 1935-01-31 Phiroz Nasserwanji Vevaina Improvements relating to hoisting and like slings
US2080148A (en) * 1935-10-07 1937-05-11 Macwhyte Company Choker hook
GB1059070A (en) * 1965-06-10 1967-02-15 P G Holm Ab Oy Method of making a tightenable and lockable rope sling
GB1409242A (en) * 1971-09-07 1975-10-08 Fisons Ltd Unitary load
SU673583A1 (ru) * 1976-12-08 1979-07-15 Проектный Институт "Промстальконструкция" Строп дл подъема груза
FR2436741A1 (fr) * 1978-09-20 1980-04-18 Europtiss Sa Sangles destinees a etre utilisees comme elingues facilement recuperables
DE3703547A1 (de) * 1987-02-06 1988-08-18 Spanset Inter Ag Verfahren zum herstellen einer rundschlinge

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR612309A (fr) * 1926-02-02 1926-09-21 Procédé de chargement et de déchargement de marchandises ayant la forme de barresou autres analogues
FR1398950A (fr) * 1964-04-03 1965-05-14 Anneau de manutention
BE787322A (fr) * 1972-08-08 1972-12-01 Usines Gonzalez Cock Dispositif d'immobilisation l'un par rapport a l'autre de deux brins decables.
US3861734A (en) * 1973-06-05 1975-01-21 Welch Maxine Tubular safety pick-up sling
US4022507A (en) * 1976-03-17 1977-05-10 Marino Systems, Inc. Self-cinching cargo sling
FR2372736A1 (en) * 1976-12-01 1978-06-30 Sars Francois De Fire-wood bundle securing wire arrangement - consists of two hoops and fastenings forming carrying handle
US4565399A (en) * 1979-09-25 1986-01-21 Cranston Ky Disposable lifting loop and method of lifting a cargo load therewith
FR2499521A1 (fr) * 1981-02-09 1982-08-13 Stas Soc Tech Access Spec Sangle de bottelage

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11312596B2 (en) 2012-06-11 2022-04-26 Dsm Ip Assets B.V. Endless shaped article

Also Published As

Publication number Publication date
CA2065702A1 (en) 1992-10-12
US5330240A (en) 1994-07-19
FR2675136A1 (fr) 1992-10-16
FR2675136B1 (fr) 1993-08-06
DE69201209D1 (de) 1995-03-02
EP0508889B1 (de) 1995-01-18
RU2085469C1 (ru) 1997-07-27

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