EP0802274B1 - Verfahren zur Herstellung einer Seilschlinge sowie danach hergestellte Seilschlinge - Google Patents

Verfahren zur Herstellung einer Seilschlinge sowie danach hergestellte Seilschlinge Download PDF

Info

Publication number
EP0802274B1
EP0802274B1 EP19970450006 EP97450006A EP0802274B1 EP 0802274 B1 EP0802274 B1 EP 0802274B1 EP 19970450006 EP19970450006 EP 19970450006 EP 97450006 A EP97450006 A EP 97450006A EP 0802274 B1 EP0802274 B1 EP 0802274B1
Authority
EP
European Patent Office
Prior art keywords
diameter
rope
strop
core
strands
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19970450006
Other languages
English (en)
French (fr)
Other versions
EP0802274A1 (de
Inventor
Guy Fargamel
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.)
G. FARGAMEL, S.A.
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0802274A1 publication Critical patent/EP0802274A1/de
Application granted granted Critical
Publication of EP0802274B1 publication Critical patent/EP0802274B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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 present invention relates to a method for manufacturing a strop in rope and the strop thus obtained.
  • This length is generally equal to a 1/2 developed length of the strop.
  • a finite strop is thus obtained, that is to say a loop comprising five strands of the same rope on a core formed by the ends of this rope.
  • Known strops have only five strands, so the resistance is reduced compared to a strop comprising six strands which is mechanically logical but also because of the tight pitch of stranding which leads to more pronounced angles which causes loss of resistance to the whole.
  • the number five is determined by the geometric rules that make it it is possible to accommodate six circles of a given diameter around a circle center of the same diameter and tangent to it, but that it is impossible to accommodate six oval sections whose large diameter is substantially parallel to a tangent to the central circle.
  • the present invention provides a manufacturing process a strand with six strands which has a resistance of the order of 20% superior because on the one hand, a sixth strand is provided and on the other hand, the stranding angle is decreased to ensure that the large diameter of the oval cross section of each strand so this contributes also to increase the final resistance. Indeed, the step is much larger and it is no longer necessary to fill the gaps between the strands.
  • the process according to the invention is economical, especially in its main embodiment, and it does not require any investment for a company in the sector concerned, manufacturing such products.
  • Either the strop comprises five strands which are wound in an adjusted fashion on the core produced by the ends of the rope.
  • Either the strop comprises six strands and there is necessarily a clearance between the coiled strands and the core produced by the ends of the rope.
  • the present invention therefore aims to overcome the drawbacks of the art by proposing a strop which has a resistance of the order of 20% higher than that of the prior art because on the one hand, the strop comprises six strands tightly wound on the core and secondly, the stranding angle is reduced to reduce the large diameter of the section oval right of each strand so this also contributes to the increase of the final resistance. Indeed, the step is much larger and it is no longer necessary to fill the clearances between the strands.
  • the process according to the invention is economical, especially in its main embodiment, and it does not require any investment for a company in the sector concerned, manufacturing such products.
  • FIG. 1 there is shown a strop 10 with, externally, strands on a core 12, symbolized in broken lines in this figure, with a point of penetration 14 of the free end portions 16 and 18 of the stranding cord 20, forming said core, with a junction point 19.
  • the method according to the invention makes it possible to produce a strop whose cross section is shown in Figure 3.
  • This strop comprises six strands I , II , III , IV , V and VI of a diameter D2 around a core 12 of a diameter D1 .
  • Each strand is an ellipse whose minor axis d1 , equal to D2 , is of a dimension smaller than that of the major axis d2 .
  • the major axis d2 is very slightly less than or equal to D1 , since only six circles can be accommodated with a point of tangency at the periphery of a circle of the same diameter.
  • the diameter D2 must be less than D1 .
  • the rope is chosen from among the ropes made of a material which allows you to have a certain capacity to contract and therefore to restrict yourself in diameter when stretched and which retains this reduced diameter even after the traction has stopped.
  • the method consists in preparing a length of rope necessary for the realization of the strop, that is to say approximately 7.5 times the average perimeter C of this strop. Account must be taken of the elongation that this rope will undergo during the implementation of the method as will be explained later.
  • This rope has a nominal diameter.
  • the rope is then immobilized in clamping means 20, symbolized in this FIG. 4A, at precise points located, in the case of a symmetrical core of a length C , at a minimum of 1/2 C of the free end.
  • a traction is then exerted between these two tightening means to ensure the stretching of the cord, in the only middle part, comprised between the tightening means, the diameter of the cord passing from D1 to D2 , with D2 ⁇ D1 .
  • the rope After loosening the tensile force, the rope retains this diameter D2 , in its middle part.
  • the middle part of the strop of the strop of diameter D2 is stranded on a mold 22 which is, for example, a steel wire, of diameter D1 .
  • the mold is then removed through the strands to the right of the point of introduction 14 and, simultaneously, the end portions of the rope, of diameter D1 , are made to penetrate into the free volume left by the progressive withdrawal of the mold, this with methods known to those skilled in the art.
  • This process is particularly easy to implement, it requires traction means for drawing the rope, which are present in the companies in the technical field considered and the actual production of the strop by stranding and introduction of the end portions in place and place of the mold, is of known type.
  • Some ropes have the capacity to keep a reduced diameter but with a certain relaxation so that, during the manufacturing, it is necessary take this relaxation into account.

Landscapes

  • Ropes Or Cables (AREA)

Claims (3)

  1. Verfahren zum Herstellen einer Seilschlinge mit Umfang C aus ein und demselben Seil mit Durchmesser D1, mit einer Seele, auf der Stränge angeordnet sind, wobei die Enden des Seils diese Seele bilden und ein Durchtrittspunkt für diese Enden vorhanden ist, umfassend die folgenden Schritte:
    Abschneiden einer Seillänge L, die für die Herstellung der Seilschlinge mit Umfang C erforderlich ist,
    Festlegen eines Mittelteils des Seils, aus dem die Mittelseele gebildet wird, und zweier Endabschnitte, die im wesentlichen gleich 1/2C sind und beiderseits des Mittelteils vorgesehen sind,
    sechsfaches Verseilen der Stränge desselben Seils um eine Form beginnend bei einem sogenannten Durchtrittspunkt für die Seilschlinge, um ein Tau zu bilden,
    Herausziehen der Form durch den Durchtrittspunkt und
    Einführen der Endabschnitte anstelle der Form, um die Seele der Seilschlinge zu bilden,
       dadurch gekennzeichnet, daß es vor dem Schritt des Verseilens der Stränge einen Schritt umfaßt, der darin besteht, die relativen Durchmesser des Mittelteils und der Endabschnitte abzuwandeln, um den Endabschnitten einen Durchmesser D1 zu verleihen und dem Mittelteil einen Durchmesser D2 zu verleihen, wobei die Form für das Ausführen des Verseilens der Stränge einen Durchmesser D1 hat.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß zur Verwirklichung der Abwandlung des Durchmessers
    ein Seil mit Nenndurchmesser verwendet wird, das die Fähigkeit besitzt, einen kleineren Durchmesser D2 beizubehalten, wenn es gestreckt wird,
    der Mittelteil gestreckt wird, um ihm einen Durchmesser D2 < D1 zu verleihen, während der Durchmesser D1 der Endabschnitte beibehalten wird, so daß die Stränge aus einem Seil mit Durchmesser D2 um eine Seele mit Durchmesser D1 verwirklicht werden.
  3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß zur Verwirklichung der Abwandlung des Durchmessers:
    ein Seil mit Nenndurchmesser D1 verwendet wird,
    die Endabschnitte mit einer Überdicke verwirklicht werden, um ihnen einen Durchmesser D'2 zu verleihen, derart, daß D'2 > D1 ist, so daß die Stränge aus einem Seil mit Durchmesser D1 um eine Seele mit Durchmesser D'2 verwirklicht werden.
EP19970450006 1996-04-19 1997-04-18 Verfahren zur Herstellung einer Seilschlinge sowie danach hergestellte Seilschlinge Expired - Lifetime EP0802274B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9605185A FR2747696B1 (fr) 1996-04-19 1996-04-19 Procede de fabrication d'une estrope en cordage et estrope ainsi obtenue
FR9605185 1996-04-19

Publications (2)

Publication Number Publication Date
EP0802274A1 EP0802274A1 (de) 1997-10-22
EP0802274B1 true EP0802274B1 (de) 2001-09-05

Family

ID=9491556

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19970450006 Expired - Lifetime EP0802274B1 (de) 1996-04-19 1997-04-18 Verfahren zur Herstellung einer Seilschlinge sowie danach hergestellte Seilschlinge

Country Status (3)

Country Link
EP (1) EP0802274B1 (de)
DE (1) DE69706465T2 (de)
FR (1) FR2747696B1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO20170954A1 (en) * 2017-06-13 2018-12-14 Van Beest Norway As A chain formed of linked flexible loops, and an apparatus and a method of manufacture of said loops
DE202018105723U1 (de) * 2018-10-05 2018-11-09 Westdeutscher Drahtseil-Verkauf Dolezych Gmbh & Co. Kg Kette, insbesondere Schwerlastkette

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2216922A (en) * 1939-05-19 1940-10-08 Macwhyte Company Method of making grommets
DE948040C (de) * 1951-07-10 1956-08-23 Hans Baur Jun Verfahren und Vorrichtung zur Herstellung von endlosen Seilen mit Seele
DE2755605A1 (de) * 1977-12-14 1979-06-21 Guenter Dipl Ing Scheffler Endloses seil

Also Published As

Publication number Publication date
FR2747696A1 (fr) 1997-10-24
DE69706465D1 (de) 2001-10-11
EP0802274A1 (de) 1997-10-22
DE69706465T2 (de) 2003-01-16
FR2747696B1 (fr) 1998-07-17

Similar Documents

Publication Publication Date Title
EP3259400B1 (de) Mehradriges kabel mit 1xn-struktur zur schützenden verstärkung eines reifens
FR2464834A1 (fr) Pneumatique a carcasse radiale
LU84984A1 (fr) Cables et leur procede de fabrication
CH630543A5 (fr) Cable metallique et son procede de fabrication.
EP1129264B1 (de) Kabel aus parallelen fäden für ein bauwerk, verankerung und verankerungsverfahren für solchen kabel
FR2597568A1 (fr) Nouveau tuyau flexible destine a etre utilise a haute pression et son procede de fabrication
EP0590407A1 (de) Führungsstütze für Katheter im besonderen hergestellt aus einer gewickelten Mehrdrahthülse
EP0217345A2 (de) Verfahren und Vorrichtung zum Spinnen von Stapelfasergarnen
EP0200148B1 (de) Verstärkungsanordnung mit einer einen Formdraht aufweisenden Schicht; Erzeugnisse mit solchen Anordnungen
FR3111923A1 (fr) Câble multi-torons à deux couches à endurance sous flexion améliorée
FR2468684A1 (fr) Cable en fibres synthetiques
EP0802274B1 (de) Verfahren zur Herstellung einer Seilschlinge sowie danach hergestellte Seilschlinge
FR2840624A1 (fr) Appareil de fabrication de fils
FR2676466A1 (fr) Cable de pneumatique en acier et un pneumatique l&#39;incorporant.
BE852353A (fr) Perfectionnement aux bielles de commande et de transmission d&#39;efforts
FR2601393A1 (fr) Cable aramide de manutention.
FR2509664A1 (fr) Tringle d&#39;armature de pneumatiques
EP1121492B1 (de) Ablenkvorrichtung für schrägseile
BE1014394A3 (fr) Fils d&#39;acier, leur procede de production et pneumatiques utilisant ces fils.
FR2571657A1 (fr) Procede de realisation d&#39;un organe de manutention et organe de manutention obtenu par la mise en oeuvre du procede
FR2763280A1 (fr) Pneumatique ayant une armature de talon constituee d&#39;un fil de noyau et de couches de gainage
FR3111922A1 (fr) Câble multi-torons à deux couches à endurance sous flexion améliorée
EP0753894A1 (de) Multifilament-Supraleiter mit integrierter Widerstandssperrschicht
EP0763860B1 (de) Verfahren zum Herstellen eines umkleideten und verdrillten Hochtemperatur-Supraleiters
FR3132348A1 (fr) Technique de réalisation d’un anneau de sertissage textile sur tube élastomère à terminaison insérée.

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE DE GB IT NL

17P Request for examination filed

Effective date: 19980326

17Q First examination report despatched

Effective date: 19981207

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE DE GB IT NL

REF Corresponds to:

Ref document number: 69706465

Country of ref document: DE

Date of ref document: 20011011

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: G. FARGAMEL, S.A.

RIN2 Information on inventor provided after grant (corrected)

Free format text: G. FARGAMEL, S.A.

NLT2 Nl: modifications (of names), taken from the european patent patent bulletin

Owner name: G. FARGAMEL, S.A.

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20020117

NLXE Nl: other communications concerning ep-patents (part 3 heading xe)

Free format text: PAT. BUL. 02/2002: CORR.: G. FARGAMEL, S.A.

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20030422

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20030428

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20030513

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20030624

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040418

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040430

BERE Be: lapsed

Owner name: S.A. *FARGAMEL GUY

Effective date: 20040430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041103

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20040418

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20041101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050418