EP0348269B1 - Kabelschuh und Herstellungsverfahren - Google Patents

Kabelschuh und Herstellungsverfahren Download PDF

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Publication number
EP0348269B1
EP0348269B1 EP89401632A EP89401632A EP0348269B1 EP 0348269 B1 EP0348269 B1 EP 0348269B1 EP 89401632 A EP89401632 A EP 89401632A EP 89401632 A EP89401632 A EP 89401632A EP 0348269 B1 EP0348269 B1 EP 0348269B1
Authority
EP
European Patent Office
Prior art keywords
metal portion
insulating
edge
face
deformed
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
EP89401632A
Other languages
English (en)
French (fr)
Other versions
EP0348269A1 (de
Inventor
Patrick Hauchard
François Loisel
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.)
Legrand SA
Original Assignee
Legrand 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
Application filed by Legrand SA filed Critical Legrand SA
Publication of EP0348269A1 publication Critical patent/EP0348269A1/de
Application granted granted Critical
Publication of EP0348269B1 publication Critical patent/EP0348269B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • H01R11/28—End pieces consisting of a ferrule or sleeve
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/20—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve

Definitions

  • the present invention relates generally to the wiring accessories to be attached to the previously stripped end of the conductive core of an electrical conductor in order to make it easier and safer to connect to any terminal, in particular when this conductive core is formed of a plurality of strands suitably stranded.
  • these wiring accessories which, commonly known as cable ends, comprise, on the one hand, a metallic part, generally tubular, which is that intended to be engaged on the stripped end of the conductive core of the electrical conductor to be fitted, for the wiring thereof, and, on the other hand, an insulating part, which, forming a collar, is engaged, by a front section, with the metal part, and which is intended for its part, to cover, by a rear section, wider than the front section, the corresponding end of the insulating sheath of this electrical conductor.
  • One of the problems to be solved, in the production of wiring end pieces of this type, relates to the assembly to be provided between the metal part and the insulating part for a suitable relative joining of the latter.
  • the metal part For its assembly to the insulating part, the metal part has, at its internal end, a development, in a truncated cone, which comes to marry, and on the other, the synthetic material constituting this insulating part.
  • this joint of overmolding can constitute an obstacle for one or the other of the strands of the conductive core to be engaged in the metallic part, and thus lead this or these strands to plug, which, on the one hand, constitutes a discomfort to the with regard to the installation of the cable end fitting during installation, which may lead to the scrapping thereof, and which, on the other hand, in the event that this installation is nevertheless finally carried out, and independently of the impact of such a plugging on the electrical quality of the connection then ensured, may subsequently give rise to incidents, if, for example, the plugged strand (s) protrude outside the cable end piece, or, broken, escape this here.
  • the internal end of the part metallic is the object, by swaging, in this one, of a deformation, for its adequacy of shape with the corresponding portion of this insulating part.
  • the corresponding deformation is limited to leading to a plating, against the wall concerned of the insulating part, of the internal end, thus worked, of the metal part.
  • the crimping force to be applied is relatively large, of the order for example of 35 kg for a cable end whose metallic part has a section of 1.5 mm2, and, in practice, it is necessary to butt outwardly. the insulating part to collect it, which complicates operations, to the detriment of the cost of the assembly, and which further accentuates the relative rigidity of the insulating part with respect to the metal part, for the benefit of the "rebound" to be avoided .
  • the present invention generally relates to a provision suitable for ensuring in a simple and effective manner, and without resulting in any risk of corking, the assembly, one to the other, insulating and metallic parts of a cable end piece, or, at least, to participate in such an assembly.
  • a wiring end piece of the kind comprising a metal part, generally tubular, which is intended to be engaged on the end, previously stripped, of the conductive core of an electrical conductor, for the wiring thereof, and an insulating part, which, forming a collar, is engaged, by a front section, with the metal part, and is intended to cover, by a rear section, wider than the front section, the corresponding end of the insulating sheath of such an electrical conductor, this cable end being generally characterized in that, the internal end of the metal part, initially straight, is generally deformed in the shape of a tulip, the outer edge of its edge forms an anchoring edge by which it is engaged with the insulating part, and it extends opposite a transverse shoulder of this insulating part whose internal diameter laughing is lower than that of the circumference along which extends the inside of its said wafer edge.
  • this anchoring edge penetrates like a wedge into the insulating part.
  • This anchoring is distinguished from an overmolding, on the one hand because, the insulating part being carried out beforehand, it is practiced after the engagement of the metallic part in this insulating part, and on the other hand because, at its term , the material of this insulating part extends only on one side of this metal part, and not on either side of it.
  • the anchoring used according to the invention can advantageously be carried out by swaging, using a simple conical punch.
  • this effort proves to be reduced by at least two thirds, passing for example from 35 kg to 10 kg for a cable end fitting whose metal part has a section of 1.5 mm2.
  • the internal end, thus blunted, of the metal part attacks a straight portion, devoid of any shoulder, of the internal surface of the insulating part.
  • the internal diameter is less than that of the circumference along which its own internal edge extends.
  • this metal part is set back relative to this insulating part.
  • the punch put implemented for its execution also has the advantage of ensuring a certain deburring of the insulating part during its introduction into it and of aligning perfectly with it the metal part, which makes it even easier the subsequent introduction of an electrical conductor overall.
  • the anchoring according to the invention can, if desired, be sufficient in itself.
  • the anchoring according to the invention can also advantageously allow, if desired, a reduction in the thickness of the adhesive film used.
  • the wiring end piece 10 comprises, on the one hand, a metallic part 11, generally tubular, which is intended to be engaged on the end 12, previously stripped, of the conductive core 13 of an electrical conductor 14, for the wiring thereof, and, on the other hand, an insulating part 15, which, forming a collar, is engaged, by a front section 16, with the metal part 11 above, and which is intended to cover, by a rear section 17, wider than the front section 16, the corresponding end 18 of the insulating sheath 19 of such an electrical conductor 14.
  • the metal part 11 forms a barrel which is circularly closed on itself, without any discontinuity, and it is generally cylindrical.
  • this metal part could as well result from the rolling of an initially flat blank, and therefore have, longitudinally, a slot, straight or oblique, rectilinear or corrugated, and open or closed, for example by welding, and / or that it can be more or less frustoconical, while then converging in the direction opposite to the insulating part 15.
  • the front section 16 of the insulating part 15 is, itself, generally cylindrical in the embodiment shown, forming, internally, a housing 20, which, bounded by a transverse shoulder 21, is clean, according to modalities which, not falling within the scope of the present invention, will not be described in detail here, at a fitting, with clearance, but with centering, of the metal part 11, and being connected, externally, to the associated rear section 17, by fins 23, which, regularly distributed circularly, extend generally radially, and which, level with the external contour of this rear section 17 at its connection to the latter, are tapered towards the outlet of the front section 16.
  • the internal end 25 of the metal part 11, initially straight, is generally deformed in the shape of a tulip, going in blooming radially in the direction opposite to the axis of the assembly, the external edge 26 of its edge 27 forms an anchoring edge by which it is engaged with the insulating part 15.
  • internal end 25 of the metal part 11 is meant here the portion of this metal part immediately adjacent to its edge 27, and the outer edge 26 of this edge 27 forms the periphery of larger diameter.
  • the anchoring edge formed by this outer edge 26 penetrates in the manner of a wedge into the insulating part 15, and, more precisely, into the corresponding internal wall of the front section 16 of this insulating part 15.
  • the amplitude d of the radial offset of this outer edge 26, measured by relative to the external surface of the current portion 29 of the metal part 11, is of the same order of magnitude as the thickness e of its wall.
  • this amplitude d of the radial offset of the outer edge 26 forming the anchoring edge is at most equal to the thickness e of the wall of the metal part 11.
  • the internal diameter D1 of this transverse shoulder 21 is less than that D2 of the circumference along which extends the internal edge 28 of the edge 27 of this deformed internal end 25.
  • this adhesive film 30 is confined by the deformed internal end 25 of the metal part 11.
  • the metal part 11, whose wall thickness e is in practice uniform over its entire length, is generally straight, FIG. 4A.
  • the metal part 11 is then suitably centered in the insulating part 15, and, by its internal surface, it extends in continuity with the internal surface of the latter.
  • the introduction of the punch 32 is continued until, making contact, through its active part 33, with the internal end 25 of the metal part 11, and until, the corresponding axial force F being made sufficient for this purpose, it causes, as shown diagrammatically in FIG. 4B, the tulip deformation sought for this internal end 25, with, jointly, and as also diagrammatically shown in FIG. 4B, an elastic deformation of the insulating part 15 .
  • the punch 32 can be turned on itself around its axis.
  • the insulating part 15 resumes its initial configuration elastically, while the deformed internal end 25 of the metal part 11 is possibly only subject to a more moderate elastic "rebound".
  • the anchoring thus produced can be carried out before the adhesive film 30 is put in place.
  • the anchoring according to the invention can be carried out after the glue film 30 has been put in place, being then performed before the polymerization of the corresponding glue.

Landscapes

  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Insulating Bodies (AREA)
  • Manufacturing Of Electrical Connectors (AREA)

Claims (8)

  1. Kabelschuh, der einen insgesamt rohrförmigen metallischen Teil (11), der dazu bestimmt ist, auf das zuvor abisolierte Ende (12) des leitenden Kerns (13) eines elektrischen Leiters (14) für dessen Verkabelung aufgesteckt zu werden, und einen einen Kragen formenden, isolierenden Teil (15) umfaßt, der mit einem vorderen Abschnitt (16) mit dem metallischen Teil (11) in Eingriff ist und dazu bestimmt ist, mit einem hinteren Abschnitt (17), der breiter als der vordere Abschnitt (16) ist, das entsprechende Ende (18) des isolierenden Mantels (19) eines solchen elektrischen Leiters (14) zu überdecken, und bei dem das innere Ende (25) des metallischen Teils (11) insgesamt tulpenförmig verformt ist, wobei die äußere Kante (26) der Stirnfläche (27) dieses verformten inneren Endes (25) eine Verankerungskante formt, dadurch gekennzeichnet, daß die Verankerungskante des inneren verformten Endes (25) des metallischen Teils (11) keilartig in den isolierenden Teil (15) eintritt und dieses innere verformte Ende (25) des metallischen Teils (11) sich gegenüber einer Querschulter (21) des isolierenden Teils (15) erstreckt, deren innerer Durchmesser (D1) kleiner als der (D2) des Umfangs ist, auf welchem sich die innere Kante (28) der Stirnfläche (27) erstreckt.
  2. Kabelschuh nach Anspruch 1, dadurch gekennzeichnet, daß die Amplitude (d) der radialen Versetzung der äußeren Kante (26) der Stirnfläche (27) des verformten inneren Endes (25) des metallischen Teils (11) bezüglich der Außenfläche seines laufenden Teils (29) von derselben Größenordnung wie die Dicke (e) der Wand dieses metallischen Teils (11) ist.
  3. Kabelschuh nach Anspruch 2, dadurch gekennzeichnet, daß die Amplitude (d) der radialen Versetzung der äußeren Kante (26) der Stirnfläche (27) des verformten inneren Endes (25) des metallischen Teils (11) höchstens gleich der Dicke (e) der Wand dieses metallischen Teils (11) ist.
  4. Kabelschuh nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß nur die äußere Kante (26) der Stirnfläche (27) des verformten inneren Endes (25) des metallischen Teils (11) mit dem isolierenden Teil (15) in Eingriff ist, wobei die innere Kante (28) dieser Stirnfläche (27) ausgeschlossen ist.
  5. Kabelschuh nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß zwischen denm metallischen Teil (11) und den isolierenden Teil (15) ein Klebstoffilm (30) eingebracht ist.
  6. Kabelschuh nach Anspruch 5, dadurch gekennzeichnet, daß der Klebstoffilm (30) durch das verformte innere Ende (25) des metallischen Teils (11) eingekapselt ist.
  7. Kabelschuh nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Dicke (e) der Wand des metallischen Teils (11) auf seiner ganzen Länge gleichförmig ist.
  8. Verfahren zur Formung eines Kabelschuhs, der einen insgesamt rohrförmigen metallischen Teil (11), der dazu bestimmt ist, auf das zuvor abisolierte Ende (12) des leitenden Kerns (13) eines elektrischen Leiters (14) für dessen Verkabelung aufgesteckt zu werden, und einen einen Kragen formenden, isolierenden Teil (15) umfaßt, der mit einem vorderen Abschnitt (16) mit dem metallischen Teil (11) in Eingriff ist und dazu bestimmt ist, mit einem hinteren Abschnitt (17), der breiter als der vordere Abschnitt (16) ist, das entsprechende Ende (18) des isolierenden Mantels (19) eines solchen elektrischen Leiters (14) zu überdecken, Verfahren, gemäß welchem man innen im isolierenden Teil (15) eine durch eine Querschulter (21) begrenzte Aufnahme (20) vorsieht, den metallischen Teil (11) in die Aufnahme (20) einsteckt und das innere Ende (25) des metallischen Teils tulpenförmig verformt, so daß die äußere Kante (26) seiner Stirnfläche (27) nach der Art eines Keils in die entsprechende innere Wand der Aufnahme (20) des isolierenden Teils (15) eintritt und daß der Durchmesser (D2) des Umfangs, auf welchem sich die innere Kante (28) dieser Stirnfläche (27) erstreckt, größer als der innere Durchmesser (D1) der Querschulter (21) des isolierenden Teils (11) ist.
EP89401632A 1988-06-21 1989-06-12 Kabelschuh und Herstellungsverfahren Expired - Lifetime EP0348269B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8808293 1988-06-21
FR8808293A FR2633103B1 (fr) 1988-06-21 1988-06-21 Embout de cablage

Publications (2)

Publication Number Publication Date
EP0348269A1 EP0348269A1 (de) 1989-12-27
EP0348269B1 true EP0348269B1 (de) 1993-04-21

Family

ID=9367518

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89401632A Expired - Lifetime EP0348269B1 (de) 1988-06-21 1989-06-12 Kabelschuh und Herstellungsverfahren

Country Status (8)

Country Link
US (1) US5017161A (de)
EP (1) EP0348269B1 (de)
JP (1) JPH0251880A (de)
KR (1) KR0155360B1 (de)
DE (1) DE68906088T2 (de)
ES (1) ES2039892T3 (de)
FR (1) FR2633103B1 (de)
HK (1) HK97093A (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5167066A (en) * 1991-08-08 1992-12-01 Mize & Co., Inc. Method for producing an insulated electrical connector
JPH0644047U (ja) * 1992-11-24 1994-06-10 矢崎総業株式会社 防水コネクタ
ES2279726B1 (es) * 2006-02-10 2008-08-01 Fernando Garcia-Mauriño Delas Herramienta manual para la deformacion de puntas terminales de cables electricos.
AR059373A1 (es) * 2006-02-10 2008-03-26 Delas Fernando Garcia-Maurino Bloque de conexion para conductores electricos y herramienta manual para la deformacion de puntas terminales de cables electricos
KR100760811B1 (ko) * 2006-03-20 2007-09-20 엘에스전선 주식회사 쐐기를 이용한 케이블 도체의 접속체 및 그 접속방법
WO2010067934A1 (ko) * 2008-12-12 2010-06-17 Jung Sook-Hee 기기 또는 용접기용 커넥터
US7892042B2 (en) * 2009-07-15 2011-02-22 Tyco Electronics Corporation Connector with keying member
WO2016170363A1 (en) * 2015-04-24 2016-10-27 Tavismanor Limited Identification tag for an electrical cable

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1922686A (en) * 1928-05-04 1933-08-15 Western Electric Co Electrical connecter
US2964171A (en) * 1958-01-15 1960-12-13 Thomas & Betts Corp Strip connectors
NL254817A (de) * 1959-08-13
US3143384A (en) * 1962-09-24 1964-08-04 Empire Prod Inc Cable connector assembly
FR1468859A (fr) * 1965-10-20 1967-02-10 Telemecanique Electrique Embout perfectionné pour raccordement de conducteur électrique
NL6610131A (de) * 1966-07-19 1968-01-22
US3571784A (en) * 1969-02-14 1971-03-23 Itt Contact assembly for electrical connector
US3634817A (en) * 1970-05-15 1972-01-11 Amp Inc Electrical connector assembly and method of making same
US3774141A (en) * 1971-11-24 1973-11-20 Vaco Products Co Terminal connector and insulating sleeve therefor
DE7240846U (de) * 1972-11-07 1973-02-15 Steinmeier A Kg Aderendhuelse
AU7055174A (en) * 1973-09-12 1976-01-08 Thomas & Betts Corp Insulated wire terminal
NL7710656A (en) * 1977-09-29 1979-04-02 Amp Inc Terminal block for crimp connection of conductor insulation - has two-section housing of different materials forming connector and conductor with contact area in channel adjacent crimping portion
FR2543369B2 (fr) * 1983-03-24 1986-01-17 Francelco Sa Dispositif d'etancheite pour connecteur electrique
FR2579836B1 (fr) * 1985-03-27 1987-10-16 Telemecanique Electrique Embout pour conducteur electrique et son procede de fabrication
JPS6261205A (ja) * 1985-09-11 1987-03-17 矢崎総業株式会社 高圧給電用コ−ドおよびその製造方法

Also Published As

Publication number Publication date
KR0155360B1 (ko) 1998-11-16
DE68906088T2 (de) 1993-07-29
FR2633103A1 (fr) 1989-12-22
EP0348269A1 (de) 1989-12-27
ES2039892T3 (es) 1993-10-01
FR2633103B1 (fr) 1991-10-25
KR900001061A (ko) 1990-01-31
DE68906088D1 (de) 1993-05-27
JPH0251880A (ja) 1990-02-21
US5017161A (en) 1991-05-21
HK97093A (en) 1993-09-24

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