EP0279252A1 - Procédé pour la fabrication d'une boucle de levage sans fin - Google Patents

Procédé pour la fabrication d'une boucle de levage sans fin Download PDF

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Publication number
EP0279252A1
EP0279252A1 EP88101315A EP88101315A EP0279252A1 EP 0279252 A1 EP0279252 A1 EP 0279252A1 EP 88101315 A EP88101315 A EP 88101315A EP 88101315 A EP88101315 A EP 88101315A EP 0279252 A1 EP0279252 A1 EP 0279252A1
Authority
EP
European Patent Office
Prior art keywords
protective tube
length
scrim
fabric
compressed
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
EP88101315A
Other languages
German (de)
English (en)
Other versions
EP0279252B1 (fr
Inventor
Hans-Otto Von Danwitz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Spanset Inter AG
Original Assignee
Spanset Inter AG
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 Spanset Inter AG filed Critical Spanset Inter AG
Priority to AT88101315T priority Critical patent/ATE58565T1/de
Publication of EP0279252A1 publication Critical patent/EP0279252A1/fr
Application granted granted Critical
Publication of EP0279252B1 publication Critical patent/EP0279252B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B7/00—Details of, or auxiliary devices incorporated in, rope- or cable-making machines; Auxiliary apparatus associated with such machines
    • D07B7/16—Auxiliary apparatus
    • D07B7/165—Auxiliary apparatus for making slings

Definitions

  • the invention relates to a method for producing a round sling, as is used in particular for lifting purposes. Such a manufacturing process is the subject of DE-A-27 16 056.
  • the protective hose consisting of a textile tubular fabric alone has the function of protecting the scrim over the entire circumferential length of the round sling against mechanical damage from the outside, since the thread strand of the scrim usually consists of synthetic yarns. Synthetic threads are known to be particularly sensitive to notches or cuts.
  • the protective hose is slightly creased in the circumferential direction of the round sling. An expansion that occurs in the event of a load and thus an increase in the circumferential length of the laid scrim still does not result in the action of a tensile load and thus in a risk of damage to the protective tube.
  • the maximum service life or service life of such a round sling is primarily determined by the service life or service life of the protective tube. If this is damaged in one place, the round sling must be retired for reasons of accident prevention.
  • a special feature of the manufacturing method of the round sling known from DE-A-27 16 056 is that for the machine insertion of the thread wrap the one-piece protective tube of greater circumferential length than the thread wrap must be compressed in the longitudinal direction of the tube to a length which is far less than half that Starting length of the protective tube is.
  • the required compression of the hose wall with the desired wall thickness can only be achieved by one Widening of the tube fabric, that is to say can be achieved by enlarging the tube cross-section.
  • a hose enlargement does not only require an expensive, additional use of textile material. It also worsens the usage properties of the round sling because the protective hose takes up an unnecessarily large amount of space in the crane hook.
  • a cross-sectional shape that is as circular as possible is advantageous because it can be accommodated particularly easily in a crane hook.
  • the regular inspection of round slings in use primarily relates to whether the tubular fabric is undamaged, i.e. has no passages to the load-bearing scrim due to mechanical influences from the outside. Such passages are easily ascertainable from the outside on protective tubes with only one fabric layer between the marginal edges of the tube fabric.
  • a double fabric layer forming the tube wall between the edge edges of the protective tube there is a risk that, for example, sharp metal chips initially only penetrate the outer fabric layer, which is not or only comparatively difficult to determine from the outside because of the inner fabric layer remaining undamaged in the penetration area. Then penetrated metal chips move between the outer and inner layers of the protective hose, where they are invisible from the outside. This hiking is completely unhindered.
  • the invention has for its object to provide a manufacturing method of the type mentioned, by means of which the wall thickness of the two fabric layers of the tubular fabric can be largely increased as desired without excessive expenditure on textile material.
  • This object is achieved by the characterizing features of claim 1.
  • the solution is briefly that the total length of the protective tube is divided into two preferably equally long length sections of the tubular fabric before the scrim is drawn in in the conventional manner. This division into two lengths has the advantage that the Schluach fabric in the area of both lengths no longer needs to be compressed in the longitudinal direction to at least about 40%, but now only to about 80% to 90% of its original length in order to machine the laid scrim in a conventional manner Way to contribute.
  • the round sling produced according to the invention differs from a conventional round sling of the type mentioned at the outset, except for the greater wall thickness of both fabric layers of the tubular fabric, only in that the protective tube does not consist of a single tubular fabric part, but rather consists of two tubular fabric parts which are attached to one another in the circumferential direction and which end together connected, in particular sewn together.
  • the spool table 1 of the device for introducing the laid scrim 2 into the longitudinal sections 3, 4 of the protective tube 5 of the round sling (FIG. 4) carries a plurality of synthetic threads 7 wound on spools 6.
  • the threads 7 can be turned by rotating the spool table 1 in the direction of the arrow 1 ⁇ are twisted together to form a strand 8.
  • the thread strand 8 can also be referred to as a thread cardel.
  • the length sections 3, 4 of the protective tube 5 are cut off from a tube fabric woven in any length. Their length corresponds to slightly more than half the circumferential length of the round sling according to FIG. 4 plus an excess for the mutual overlap 9 in the region of their ends.
  • a seam 10 is provided which prevents the two longitudinal sections 3, 4 from loosening from one another and thus preventing the laid scrim from being exposed.
  • the two longitudinal sections 3, 4 are each pushed over a channel-like support body 11 in the longitudinal direction of the hose.
  • the support body 11 has the cross-sectional shape of approximately a tube halved in the longitudinal direction.
  • the longitudinal sections 3, 4 of the protective tube 5 are compressed in such a way that their compression length is approximately 80 to 90% of their initial length as a tubular fabric.
  • the length of the support body 11 corresponds approximately to the compression length of the two length sections 3, 4.
  • both support bodies 7 with the longitudinal sections 3 and 4 surrounding them are guided between the two wheel disks 12, 13.
  • the wheel disks 12, 13 lie with their plane of rotation in the same vertical plane.
  • the wheel disc 12 can be driven by a motor in the direction of the arrow 14. It is mounted fixed on the machine frame, which is represented by a bearing arm 15.
  • the wheel disc 13 is only freely rotatably mounted on the bearing arm 16.
  • the bearing arm 16 is mounted on both sides of the machine frame in the arrow direction 16eitig.
  • the distance between the two wheel disks 12, 13 can be varied. This distance, together with the diameter of both wheel disks 12, 13, determines the desired circumferential length of the round sling to be produced.
  • the wheel disks 12, 13 can be mounted on one side in order to facilitate the removal of the thread scrim 2 from the wheel disks 12, 13 after the thread scrim 2 has been drawn into the two longitudinal sections 3, 4 of the protective tube 5 that is to become the later.
  • the two supporting bodies 11 with the compressed longitudinal sections 3 or 4 pushed onto them are arranged in the longitudinal direction within the vertical plane running through the plane of the wheel disks 12, 13 that the The central longitudinal axes 17, 18 of the two semi-tubular support bodies 11 or the longitudinal sections 3, 4, which are seated on them in a compressed form, coincide approximately with the tangents 21 and 22, respectively, through the upper vertices 19 and the lower vertices 20 of the two wheel disks 12, 13.
  • the first length section 3 surrounds the upper run 24 and the second length section 4 surrounds the lower run 25 of the cable drive.
  • the end-side knotting of the thread strand 8 to form this cable drive is to be carried out in such a way that the thread strand 8 lies relatively firmly on the circumference of the wheel disks 12, 13, so that there is frictional engagement with the wheel disks 12, 13.
  • the only important thing is the production of a cable drive and not the number of wheel disks 12, 13 of this cable drive. It is very conceivable to work with a rope drive containing four wheel disks instead of only two wheel disks, as in the exemplary embodiment, in which case each wheel disk then only causes a deflection of approximately 90 °. Such a design of the manufacturing device can be advantageous for frictional reasons.
  • the number of revolutions of the knot 23 consequently corresponds to the number of turns of thread strands 8 in the later laid scrim 2, which runs within the two length sections 3, 4.
  • the drive of the wheel disk 12 is switched off, which can be done by an automatic control device.
  • the rear end 26 of the thread strand 8 is then cut off from the feed side of the threads 7.
  • the laid scrim 2 consisting of a large number of thread strand turns, is removed from the wheel disks 12, 13.
  • the support body 11 are then pulled out of the compressed longitudinal sections 3, 4 of the later tubular casing 5.
  • the length sections 3, 4 are pulled apart to their original starting length in the circumferential direction of the laid scrim 2.
  • the ends of the longitudinal sections 3, 4 are inserted into one another to form the overlap 9 and connected to one another by the seam 10.
  • the manufacturing method according to the invention makes it possible, with a constant width of the tubular fabric or a constant inner cross-section of the protective tube intended to accommodate the laid scrim 2, to design the tubular fabric, for example to increase wear resistance, in such a way that it is compressible to a much lesser extent than in the conventional one Manufacturing process is required.

Landscapes

  • Load-Engaging Elements For Cranes (AREA)
  • Ropes Or Cables (AREA)
  • Package Frames And Binding Bands (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Compounds Of Unknown Constitution (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Electron Beam Exposure (AREA)
  • Wire Bonding (AREA)
  • Preparing Plates And Mask In Photomechanical Process (AREA)
  • Forging (AREA)
  • Woven Fabrics (AREA)
  • Eyeglasses (AREA)
EP88101315A 1987-02-06 1988-01-29 Procédé pour la fabrication d'une boucle de levage sans fin Expired - Lifetime EP0279252B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88101315T ATE58565T1 (de) 1987-02-06 1988-01-29 Verfahren zum herstellen einer rundschlinge.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3703547 1987-02-06
DE19873703547 DE3703547A1 (de) 1987-02-06 1987-02-06 Verfahren zum herstellen einer rundschlinge

Publications (2)

Publication Number Publication Date
EP0279252A1 true EP0279252A1 (fr) 1988-08-24
EP0279252B1 EP0279252B1 (fr) 1990-11-22

Family

ID=6320335

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88101315A Expired - Lifetime EP0279252B1 (fr) 1987-02-06 1988-01-29 Procédé pour la fabrication d'une boucle de levage sans fin

Country Status (11)

Country Link
US (1) US4843807A (fr)
EP (1) EP0279252B1 (fr)
JP (1) JPS63256783A (fr)
AT (1) ATE58565T1 (fr)
AU (1) AU594285B2 (fr)
CA (1) CA1309243C (fr)
DE (2) DE3703547A1 (fr)
DK (1) DK166221C (fr)
ES (1) ES2019975B3 (fr)
FI (1) FI84375C (fr)
NO (1) NO169854C (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005092499A1 (fr) 2004-03-17 2005-10-06 Gm Global Technology Operations, Inc. Pot catalytique pour ameliorer l'efficacite de la reduction des nox dans des automobiles
EP1465713B1 (fr) * 2002-01-18 2008-04-02 mamutec AG Boucle
FR2959223A1 (fr) * 2010-04-26 2011-10-28 Pms Internat Elingue de levage
DE102011055454B4 (de) * 2011-11-17 2016-11-10 Westdeutscher Drahtseil-Verkauf Dolezych Gmbh & Co. Verfahren und Vorrichtung zur Herstellung einer Rundschlinge

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5436044A (en) * 1990-08-15 1995-07-25 Elizabeth Webbing Mills, Inc. Cargo securement strap
FR2675136B1 (fr) * 1991-04-11 1993-08-06 Philippe Barra Elingue fermee a boucle autoserrante.
US5649414A (en) * 1996-06-21 1997-07-22 Mcdonnell Douglas Corp. Sling with braided sleeve covering
ATE500185T1 (de) 2001-12-03 2011-03-15 Mamutec Ag Hebegurtschlinge
US6953064B2 (en) * 2002-07-22 2005-10-11 Murdock Webbing Co., Inc. Grommeted web section and method of making
ATE357406T1 (de) * 2003-01-30 2007-04-15 Dsm Ip Assets Bv Tragschlinge
US7658423B1 (en) 2003-11-25 2010-02-09 Carmichael Daniel T Lifting sling adapted to effectuate cargo security
US7669904B1 (en) 2003-11-25 2010-03-02 Carmichael Daniel T Lifting sling having a tenacious coating with methods of manufacturing and monitoring the same
US7475926B2 (en) 2004-06-19 2009-01-13 First Sling Technology Llc Synthetic roundsling with inspectable core
US7628435B1 (en) * 2005-02-16 2009-12-08 Murdock Webbing Co., Inc. Web section, round sling made from the web section, and method of making the round sling
DE102006052279A1 (de) * 2006-11-03 2008-05-08 Spanset Inter Ag Rundschlinge
CN101105008B (zh) * 2007-07-30 2010-05-26 浙江双友物流器械股份有限公司 环形穿丝吊装带的生产装置
US7568333B2 (en) * 2007-10-31 2009-08-04 Slingmax, Inc. Apparatus for making slings
US7926859B2 (en) * 2007-10-31 2011-04-19 Slingmax, Inc. Synthetic sling whose component parts have opposing lays
KR100927857B1 (ko) * 2009-01-20 2009-11-19 배성남 라운드슬링
DE102009010680B3 (de) 2009-02-27 2010-08-05 Spanset Inter Ag Rundschlinge zum Heben von Lasten
US8793843B2 (en) 2010-08-13 2014-08-05 Matthew Khachaturian Lifting sling grommet connector and method
CN102030258B (zh) * 2010-12-31 2014-10-01 巨力索具股份有限公司 一种制造合成纤维束力圆形吊装带的设备
DE102011052146B3 (de) 2011-07-26 2013-01-03 Spanset Inter Ag Rundschlinge zum Heben von Lasten
DE202012102710U1 (de) 2012-07-19 2012-08-17 Spanset Inter Ag Rundschlinge zum Heben von Lasten
AR097224A1 (es) 2013-03-22 2016-03-02 Iph Saicf Conjunto de dispositivos para formar ojales en eslingas
DE202015100291U1 (de) 2015-01-22 2015-03-02 Westdeutscher Drahtseil-Verkauf Dolezych Gmbh & Co. Kg Rundschlinge
NL2015822B1 (en) * 2015-11-19 2017-06-06 Cabin Air Group Bv Cable with a first and a second thimble and at least one yarn, and method for producing an endless winding cable.
NL2015920B1 (en) * 2015-12-07 2017-06-28 Cabin Air Group Bv Device and method for producing a cable, as well as a cable.
CN105485249A (zh) * 2015-12-28 2016-04-13 盛利维尔（中国）新材料技术有限公司 一种环形钢丝绳制作装置
US10113267B2 (en) 2016-03-04 2018-10-30 Slingmax, Inc. Tensioning apparatus for synthetic sling manufacturing apparatus and method
CN106087501A (zh) * 2016-06-29 2016-11-09 江阴泰阳成索业有限公司 钢丝绳绕制装置及其使用方法
CN106051048A (zh) * 2016-06-29 2016-10-26 江阴泰阳成索业有限公司 纤维带索具及其生产方法
EP3997267A4 (fr) * 2019-07-11 2024-03-06 Cortland Company, Inc. Procédé de fabrication d'une boucle sans fin

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2099108A5 (fr) * 1970-06-17 1972-03-10 Spanset Inter Ag
FR2205468A1 (fr) * 1972-11-08 1974-05-31 Skepps & Fiskeritillbehoer
US4093292A (en) * 1974-04-01 1978-06-06 Jose Maria Maso Marcet Sling and its method of manufacture
DE2716056A1 (de) * 1977-04-09 1978-10-19 Spanset Inter Ag Verfahren zur herstellung einer rundschlinge

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1312770A (en) * 1919-08-12 Archibald ttjkner and hugh james ttjbneb
US1479900A (en) * 1921-02-07 1924-01-08 Goodrich Co B F Method and machine for making cabled structures
US1415696A (en) * 1921-12-07 1922-05-09 Goodrich Co B F Grommet-winding machine
US1588050A (en) * 1923-01-11 1926-06-08 Russell Mfg Co Endless belt and method of manufacturing same
US2753678A (en) * 1953-02-02 1956-07-10 United States Steel Corp Method and apparatus for making grommets
CA1064025A (fr) * 1975-07-22 1979-10-09 Gary H. Klein Adhesifs pour la fabrication des cartons ondules
GR73539B (fr) * 1980-01-21 1984-03-12 Spanset Inter Ag
US4354704A (en) * 1980-10-01 1982-10-19 Kaman Aerospace Corporation Sling and method for making same
JPS5928595U (ja) * 1982-08-14 1984-02-22 白井実業株式会社 エンドレススリング
JPS6039797A (ja) * 1983-08-12 1985-03-01 Hitachi Ltd 軟ｘ線発生装置
DE3616465C1 (de) * 1986-05-15 1987-05-14 Heinz Franke Rundschlinge zum Heben von Lasten

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2099108A5 (fr) * 1970-06-17 1972-03-10 Spanset Inter Ag
FR2205468A1 (fr) * 1972-11-08 1974-05-31 Skepps & Fiskeritillbehoer
US4093292A (en) * 1974-04-01 1978-06-06 Jose Maria Maso Marcet Sling and its method of manufacture
DE2716056A1 (de) * 1977-04-09 1978-10-19 Spanset Inter Ag Verfahren zur herstellung einer rundschlinge

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1465713B1 (fr) * 2002-01-18 2008-04-02 mamutec AG Boucle
WO2005092499A1 (fr) 2004-03-17 2005-10-06 Gm Global Technology Operations, Inc. Pot catalytique pour ameliorer l'efficacite de la reduction des nox dans des automobiles
FR2959223A1 (fr) * 2010-04-26 2011-10-28 Pms Internat Elingue de levage
DE102011055454B4 (de) * 2011-11-17 2016-11-10 Westdeutscher Drahtseil-Verkauf Dolezych Gmbh & Co. Verfahren und Vorrichtung zur Herstellung einer Rundschlinge

Also Published As

Publication number Publication date
DK166221B (da) 1993-03-22
JPH0351836B2 (fr) 1991-08-08
EP0279252B1 (fr) 1990-11-22
NO880439L (no) 1988-08-08
NO169854C (no) 1992-08-12
ATE58565T1 (de) 1990-12-15
NO880439D0 (no) 1988-02-02
FI880493A (fi) 1988-08-07
DK166221C (da) 1993-08-16
DE3703547A1 (de) 1988-08-18
US4843807A (en) 1989-07-04
FI880493A0 (fi) 1988-02-03
NO169854B (no) 1992-05-04
JPS63256783A (ja) 1988-10-24
ES2019975B3 (es) 1991-07-16
CA1309243C (fr) 1992-10-27
DE3861097D1 (de) 1991-01-03
AU594285B2 (en) 1990-03-01
FI84375C (fi) 1991-11-25
DK61088A (da) 1988-08-07
AU1133388A (en) 1988-08-11
DK61088D0 (da) 1988-02-05
FI84375B (fi) 1991-08-15

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