EP0071952A1 - Abbindung zum Halten eines elektrischen Leiters in der seitlichen Rille eines starren Isolators - Google Patents

Abbindung zum Halten eines elektrischen Leiters in der seitlichen Rille eines starren Isolators Download PDF

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Publication number
EP0071952A1
EP0071952A1 EP82106986A EP82106986A EP0071952A1 EP 0071952 A1 EP0071952 A1 EP 0071952A1 EP 82106986 A EP82106986 A EP 82106986A EP 82106986 A EP82106986 A EP 82106986A EP 0071952 A1 EP0071952 A1 EP 0071952A1
Authority
EP
European Patent Office
Prior art keywords
ligature
ligature according
loop
groove
ring
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.)
Withdrawn
Application number
EP82106986A
Other languages
English (en)
French (fr)
Inventor
Michel Willem
Lucien Gamet
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.)
Ceraver SA
Original Assignee
Ceraver SA
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
Priority claimed from FR8115205A external-priority patent/FR2511182A1/fr
Priority claimed from FR8205929A external-priority patent/FR2524692A2/fr
Application filed by Ceraver SA filed Critical Ceraver SA
Publication of EP0071952A1 publication Critical patent/EP0071952A1/de
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/20—Pin insulators
    • H01B17/22—Fastening of conductors to insulator
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/44—Clasp, clip, support-clamp, or required component thereof
    • Y10T24/44239—Encircling gripping member including semirigid band and operator for tightening
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/44—Clasp, clip, support-clamp, or required component thereof
    • Y10T24/44966—Clasp, clip, support-clamp, or required component thereof having gripping member shifted by operator
    • Y10T24/44974—Threaded cylindrical rod and mating cavity

Definitions

  • the invention relates to a ligature for retaining an electrical conductor in the lateral groove of a rigid insulator.
  • the present invention aims to implement a simpler manufacturing ligation than the previous ligation.
  • each branch is formed by a folded metal wire to form a half-loop or a complete loop.
  • the two wires can then be glued one to the other and form a ribbon which is spiraled around the cable, the spiral being preformed.
  • the ends of the wire can advantageously be joined together, for example by welding or gluing, in order to avoid any sharp edge that can cause handling accidents or radio disturbances.
  • the number of wires is greater than two, over all or part of each branch of the ligature, and this, in a particularly advantageous manner, from the outlet of the loop.
  • the ring through which the two spiral fasteners pass is formed by folding a metal wire, and at each end there is a superposition of at least one hairpin fold and a open coil.
  • the end portions of the wire forming the ring are slightly bent so as not to protrude.
  • the elastomer part in the form of a cylinder.
  • its face intended to be in contact with the groove of the insulator has a convexity matching the concavity of the groove.
  • the bolt of the tightening means can be rigidly embedded in the elastomer part at its central part.
  • an insulator 1 having at least a skirt 2, a head 3, and an intermediate groove 4 for receiving a cable 5.
  • the latter is retained in the groove 4 using a ligature according to the invention comprising two branches 6 and 11 sen so symmetrical.
  • the branch 6 is constituted by an elastic metal wire, folded so as to form a loop 7, then a ribbon conforming to the curvature of the groove 4.
  • This ribbon passes through an elongated ring 10 described in detail below, and its two wires 8 and 9 initially preformed are spiraled around the cable 5.
  • the same is true for the branch 11 for which the loop 12 has been referenced, and the two terminal wires 13 and 14.
  • the ring 10 follows the shape of the groove in the insulator and constitutes a linear support area for the cable 5.
  • the two loops 7 and 12 are pressed against the two ends of an elastomer part 20 in the form of a cylinder. Rigid intermediate washers 23 and 24 are provided for tightening. The assembly is compressed by means of a bolt 21 and a nut 22. At this time, the two branches 6 and 11 of the ligature tighten under the double effect of the bringing together of the loops 7 and 12 and of the swelling of the elastomer part 20 .
  • FIGS. 3 and 4 show a preferred embodiment 41 of the ring 10 of FIGS. 1 and 2.
  • the metal wire constituting the ring 41 forms a fold 42, 43 in a hairpin which is superimposed with an open turn 44, 45.
  • the change of direction of the branch 30 of the ligature is therefore done by taking support on two sections of the wire of the ring 41, which reduces the risk of damage to this ligature.
  • the two end parts 46, 47 of the wire forming the ring 41 are slightly bent so as to lie substantially in the same plane towards the "inside" of the ring, so that the end points 48, 49 do not injure neither the cable nor the glass of the insulator 31.
  • the wire used to form the ring can be Alumoweld (aluminum + steel), or stainless steel, or Almelec.
  • the part 61 comprises an elastomer part 61, the face 62 of which is capable of conforming to the shape of the groove 70 of the insulator 71.
  • This part has a cylindrical cavity 63 intended to receive a metal rod 64 which will be kept rigidly fixed therein, by example by anti-rotation retaining lugs or any equivalent means.
  • the ends 65 and 66 of the smooth rod 64 are threaded and intended to receive the loops 72 and 73 of the two branches, tightening washers 74, 75 and two end bolts 67 and 68.
  • the bolt 67 has its rounded end of so as to avoid radio interference; it has an intermediate part 69 machined into a nut for tightening. The latter can be carried out remotely by means of an insulating tool.
  • Bolt 68 is very similar to bolt 67.
  • the invention has many advantages.
  • the ligature is easy to install; it is convenient when working under voltage because it is not necessary to separate it from the cable when replacing the insulator.
  • the elastomer part ensures anti-rotation of the ligature around the insulator because it follows the shape of the groove and acts as a brake thanks to its high coefficient of friction on the glass.
  • the invention is not limited to the embodiment which has just been described. Any variant of bolt or nut can be used, the shape of which facilitates working at a distance; the elastomer part can be replaced by several elastomer parts joined together and having different diameters.

Landscapes

  • Insulating Bodies (AREA)
  • Insulators (AREA)
  • Surgical Instruments (AREA)
EP82106986A 1981-08-05 1982-08-03 Abbindung zum Halten eines elektrischen Leiters in der seitlichen Rille eines starren Isolators Withdrawn EP0071952A1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR8115205A FR2511182A1 (fr) 1981-08-05 1981-08-05 Ligature pour la retenue d'un conducteur electrique dans la gorge d'un isolateur rigide
FR8115205 1981-08-05
FR8205929 1982-04-06
FR8205929A FR2524692A2 (fr) 1982-04-06 1982-04-06 Ligature pour la retenue d'un conducteur electrique dans la gorge d'un isolateur rigide

Publications (1)

Publication Number Publication Date
EP0071952A1 true EP0071952A1 (de) 1983-02-16

Family

ID=26222500

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82106986A Withdrawn EP0071952A1 (de) 1981-08-05 1982-08-03 Abbindung zum Halten eines elektrischen Leiters in der seitlichen Rille eines starren Isolators

Country Status (6)

Country Link
US (1) US4409432A (de)
EP (1) EP0071952A1 (de)
BR (1) BR8204571A (de)
CA (1) CA1177128A (de)
ES (1) ES273690Y (de)
NO (1) NO159222C (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2589616A1 (fr) * 1985-10-25 1987-05-07 Preformed Line Products Co Dispositif pour attacher des lignes aeriennes, notamment des cables de puissance a un isolateur
US7674982B2 (en) 2008-01-29 2010-03-09 Bmc Innovation Inc. Electric cable and insulator self-locking system, and method of installation thereof

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4852948A (en) * 1984-03-12 1989-08-01 Ernest Vagias Traction device
CA2120783C (en) * 1993-04-08 1998-06-16 Robert S. Bonds A protective cushioning pad for electrical insulator
JP2010274404A (ja) * 2009-06-01 2010-12-09 Makita Corp ディスクグラインダにおける砥石カバーの固定具脱落防止構造

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR701473A (fr) * 1930-08-30 1931-03-17 Agrafes de fixation des conducteurs électriques de tous diamètres sur des isolateurs d'un type quelconque
FR41450E (fr) * 1932-03-01 1933-01-10 Agrafes de fixation des conducteurs électriques de tous diamètres sur des isolateurs d'un type quelconque
US3406513A (en) * 1966-12-21 1968-10-22 Fanner Mfg Co Dead end
US3918685A (en) * 1972-06-02 1975-11-11 Lindsay Mfg Co Convertible conductor stringing assembly for power line use
FR2361008A1 (fr) * 1976-08-04 1978-03-03 Lienart Jean Pierre Dispositif pour la fixation d'un cable electrique sur un isolateur
EP0051276A1 (de) * 1980-11-04 1982-05-12 CERAVER Société anonyme dite: Vorgeformte Abbindung zum Einklemmen eines Kabels in der seitlichen, kreisförmigen Rille eines starren Isolators

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US996211A (en) * 1911-02-25 1911-06-27 David Carswell Fence-post clamp.
US2421286A (en) * 1945-03-24 1947-05-27 Copperweld Steel Co Insulator tie for line conductors
US2643283A (en) * 1948-02-17 1953-06-23 Harold S Sines Insulator tie
US2911695A (en) * 1956-06-21 1959-11-10 United States Steel Corp Tie for fastening a line wire to an insulator
US2897256A (en) * 1956-07-31 1959-07-28 Indiana Steel & Wire Company I Line wire support
FR1313890A (fr) * 1961-11-20 1963-01-04 Attache électro-mécanique pour lignes électriques aériennes
FR2393450A1 (fr) * 1977-06-01 1978-12-29 Saae Dispositif de blocage d'une spirale de fixation de cable electrique sur un isolateur

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR701473A (fr) * 1930-08-30 1931-03-17 Agrafes de fixation des conducteurs électriques de tous diamètres sur des isolateurs d'un type quelconque
FR41450E (fr) * 1932-03-01 1933-01-10 Agrafes de fixation des conducteurs électriques de tous diamètres sur des isolateurs d'un type quelconque
US3406513A (en) * 1966-12-21 1968-10-22 Fanner Mfg Co Dead end
US3918685A (en) * 1972-06-02 1975-11-11 Lindsay Mfg Co Convertible conductor stringing assembly for power line use
FR2361008A1 (fr) * 1976-08-04 1978-03-03 Lienart Jean Pierre Dispositif pour la fixation d'un cable electrique sur un isolateur
EP0051276A1 (de) * 1980-11-04 1982-05-12 CERAVER Société anonyme dite: Vorgeformte Abbindung zum Einklemmen eines Kabels in der seitlichen, kreisförmigen Rille eines starren Isolators

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2589616A1 (fr) * 1985-10-25 1987-05-07 Preformed Line Products Co Dispositif pour attacher des lignes aeriennes, notamment des cables de puissance a un isolateur
US7674982B2 (en) 2008-01-29 2010-03-09 Bmc Innovation Inc. Electric cable and insulator self-locking system, and method of installation thereof

Also Published As

Publication number Publication date
NO159222C (no) 1988-12-07
CA1177128A (fr) 1984-10-30
NO159222B (no) 1988-08-29
US4409432A (en) 1983-10-11
ES273690U (es) 1984-04-01
NO822651L (no) 1983-02-07
BR8204571A (pt) 1983-07-26
ES273690Y (es) 1984-11-16

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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

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19830726

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

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19841113

RIN1 Information on inventor provided before grant (corrected)

Inventor name: WILLEM, MICHEL

Inventor name: GAMET, LUCIEN