NO871272L - CUTTING CLIP FOR CONNECTING ISOLATED ELECTRIC CABLES. - Google Patents

CUTTING CLIP FOR CONNECTING ISOLATED ELECTRIC CABLES.

Info

Publication number
NO871272L
NO871272L NO871272A NO871272A NO871272L NO 871272 L NO871272 L NO 871272L NO 871272 A NO871272 A NO 871272A NO 871272 A NO871272 A NO 871272A NO 871272 L NO871272 L NO 871272L
Authority
NO
Norway
Prior art keywords
cutting
legs
clamping
wire
clamping slot
Prior art date
Application number
NO871272A
Other languages
Norwegian (no)
Other versions
NO871272D0 (en
Inventor
Hans Scholtholt
Ewald Steiner
Original Assignee
Siemens 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 Siemens Ag filed Critical Siemens Ag
Publication of NO871272D0 publication Critical patent/NO871272D0/en
Publication of NO871272L publication Critical patent/NO871272L/en

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-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
    • H01R4/24Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2416Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type
    • H01R4/242Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members being plates having a single slot

Landscapes

  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Installation Of Indoor Wiring (AREA)

Description

Oppfinnelsen angår en skjæreklemme for tilkobling av isolerte elektriske ledninger. En slik skjæreklemme er f.eks. vist i DE-AS 1 263 130. I henhold til denne publikasjon har en av platemateriale dannet skjæreklemme en midtre klemsliss som den metalliske kjerne av en isolert elektrisk ledning kan trykkes inn i for å gi kontakt. Endekantene av de ben som begrenser klemslissen, danner sammen med benas innervegg en spissvinklet tilskjæring som letter avskjæringen av ledningsisolasjonen. Endekanten har et utad bueformet konkavt forløp og går over i et utragende parti av bena. Klemslissen selv utvider seg bueformet i tilslutning til skjærekanten, slik at det dannes en meget spiss tilskjæring. The invention relates to a cutting clamp for connecting insulated electrical cables. Such a cutting clamp is e.g. shown in DE-AS 1 263 130. According to this publication, a cutting clamp formed from plate material has a central clamping slot into which the metallic core of an insulated electrical wire can be pressed to make contact. The end edges of the legs which limit the clamping slot form, together with the leg's inner wall, an acute-angled cut that facilitates the cutting of the cable insulation. The end edge has an outwardly arc-shaped concave course and merges into a protruding part of the legs. The clamping slot itself expands in an arc in connection with the cutting edge, so that a very sharp cut is formed.

Hensikten med oppfinnelsen er å utføre koblingsklemmen slikThe purpose of the invention is to make the connection clamp like this

at ledninger med meget hård, seig og tykk isolasjon pålitelig og billig kan tilkobles. that cables with very hard, tough and thick insulation can be connected reliably and cheaply.

Denne oppgave løses ved oppfinnelsen i henhold til krav 1. Skjæreklemmen har en enkel geometrisk form som tillater en stanseteknisk gunstig fremstilling. Ledningsisolasjonen blir ved inntrykking av ledningen ikke skavet av, men gjennom-strukket og blir i kontaktområdet trengt utover av den plant forløpende endekant uten å brytes. Den ligger rundt kontakt-klemmen og forsterker derved klemmekraften. Gjennomstikkingen av isolasjonen er mindre slitasjefremkallende enn en avskaving, da skjæreflåtene er mindre og der som følge av den skrå ende-flate oppstår en utovervirkende kraftkomponent som avlaster skjærekanten. Da innsidene av klemmebena strekker seg parallelt, blir skjærekanten bedre understøttet, noe som bedrer dens holdbarhet. En slik utformet skjæreklemme egner seg særlig for ledninger med isolasjon som er tykk og vanskelig å skjære, noe som f.eks. er tilfelle med utvendige tilkoblingsledninger i telefonanlegg. This task is solved by the invention in accordance with claim 1. The cutting clamp has a simple geometric shape which allows a punching technique favorable production. When the cable is impressed, the cable insulation is not rubbed off, but stretched through and is pushed outwards in the contact area by the flat running end edge without breaking. It lies around the contact clamp and thereby reinforces the clamping force. The piercing of the insulation is less wear-inducing than an abrasion, as the cutting edges are smaller and as a result of the inclined end surface, an outwardly acting force component occurs which relieves the cutting edge. As the insides of the clamping legs run parallel, the cutting edge is better supported, which improves its durability. A cutting clamp designed in this way is particularly suitable for cables with insulation that is thick and difficult to cut, which e.g. is the case with external connection cables in telephone systems.

Ved utviklingen av oppfinnelsen i henhold til krav 2 avlastes skjærekanten enda mer, da metallkjernen av ledningen glir forbi denne. Derved bibeholdes dens skarphet for etterfølgende kob-lingsoperasjoner. Som følge av den bredere innføring blir trå den bedre sentrert, slik at faren for skade reduseres. Ved den trinnformede innsnevring dannes et ekstra skjær som fjerner det resterende isolasjonsskikt fra ledningskjernen og derved frem-bringer en sikker kontakt. I det følgende skal oppfinnelsen forklares nærmere i tilknytning til et utførelseseksempel vist på tegningen. Fig. 1 viser et oppriss av en skjæreklemme med en isolert elektrisk ledning før tilkobling. Fig. 2 viser delene i henhold til fig. 1 etter tilkobling av koblingsledningen. When developing the invention according to claim 2, the cutting edge is relieved even more, as the metal core of the wire slides past it. Thereby, its sharpness is maintained for subsequent connection operations. As a result of the wider introduction, the tread is better centered, so that the risk of injury is reduced. With the step-shaped narrowing, an additional shear is formed which removes the remaining insulation layer from the wire core and thereby produces a secure contact. In the following, the invention will be explained in more detail in connection with an embodiment shown in the drawing. Fig. 1 shows an elevation of a cutting clamp with an insulated electric wire before connection. Fig. 2 shows the parts according to fig. 1 after connecting the connecting cable.

Fig. 3 viser delene på fig. 2 sett forfra.Fig. 3 shows the parts of fig. 2 front view.

I henhold til fig. 1,2 og 3 blir en skjæreklemme 1 fremstilt av platemateriale. Den har en midtre klemsliss 2 som er dannet mellom klemben 3. Disse har ved sin frie sidekant en avfasing som strekker seg i spiss vinkel med innersiden av klembena og danner en skarp skjærekant 5 med denne. Avfasingen 4 har et rett forløp helt til utsiden av klembena 3. Innsidene av klembena strekker seg parallelt med hverandre. According to fig. 1,2 and 3, a cutting clamp 1 is produced from plate material. It has a central clamping slot 2 which is formed between the clamping legs 3. These have a chamfer at their free side edge which extends at an acute angle with the inner side of the clamping legs and forms a sharp cutting edge 5 with this. The chamfer 4 has a straight course all the way to the outside of the clamping legs 3. The insides of the clamping legs extend parallel to each other.

Ved inntrykking av en isolert elektrisk ledning 6 blir dennes isolasjon gjennomstukket av skjærekantene og presset utover av avfasingen 4 som strekker seg i en vinkel på mindre enn 45°. Dette isolasjonspartiet omgir de to klemben 3 på deres ytter-side. Den metalliske kjerne av ledningen 6 blir presset inn i skjæreslissen 2 mellom de to klemben 3 og bragt i elektrisk kontakt med disse. When an insulated electric wire 6 is impressed, its insulation is pierced by the cutting edges and pushed outwards by the chamfer 4 which extends at an angle of less than 45°. This insulating part surrounds the two clamping legs 3 on their outer side. The metallic core of the wire 6 is pressed into the cutting slot 2 between the two clamping legs 3 and brought into electrical contact with them.

Klemmslissen 2 er ved sin ytre ende noe bredere enn kjernediameteren av ledningen 6. Dette innføringsområde ender ved en skarpkantet, trinnformet innsnevring 7 som slutter seg til den egentlige klemsone 8.. Dennes innvendige bredde er mindre enn kjernediameteren av ledningen 6, slik at der kan fås til-strekkelig god kontakt med denne. The clamping slot 2 is somewhat wider at its outer end than the core diameter of the wire 6. This insertion area ends at a sharp-edged, step-shaped narrowing 7 which joins the actual clamping zone 8. Its internal width is smaller than the core diameter of the wire 6, so that there can sufficiently good contact with this can be obtained.

Claims (2)

1. Skjæreklemme for tilkobling av isolerte elektriske ledninger, som kan trykkes på tvers inn i en klemsliss i den av platemateriale dannede skjæreklemme, idet klemslissen er dannet mellom to klemben, som kjernen av den isolerte elektriske ledning kan presses inn mellom for å skaffe kontakt, og som ved den frie ende av klemmslissen har skjærekanter til innskjæring i trådisolasjonen, samtidig som avstanden mellom skjærekantene er tilnærmet lik ledningens kjernediameter og den i området for skjærekanten skrått forløpende endekanter av klembena danner en spissvinklet tilskjæring med benas innersider, karakterisert ved at spissen av bena er plant kileformig utformet, at endekanten har et skrått forløp helt frem til utsiden av klembena, og at innersidene av klembena forløper parallelt med hverandre i tilslutning til tilskjær-ingen .1. Cutting clamp for connecting insulated electric wires, which can be pressed transversely into a clamping slot in the cutting clamp formed of plate material, the clamping slot being formed between two clamp legs, between which the core of the insulated electric wire can be pressed in to make contact, and which at the free end of the clamping slot have cutting edges for cutting into the wire insulation, at the same time that the distance between the cutting edges is approximately equal to the wire's core diameter and the end edges of the clamping legs which run obliquely in the area of the cutting edge form an acute-angled cut with the inner sides of the legs, characterized by the tip of the legs is flat wedge-shaped, that the end edge has an inclined course all the way to the outside of the clamping legs, and that the inner sides of the clamping legs run parallel to each other in connection with the cutting. 2. Skjæreklemme i henhold til krav 1, karakterisert ved at den innvendige bredde mellom de to spisser av bena er noe større enn kjernediameteren av ledningen, at klemslissen har en skarpkantet, trinnformet innsnevring som er anordnet mellom spissene og en klemsone for tråden, og at den innvendige bredde av klemslissen nedenfor den skarpkantede innsnevring er noe mindre enn diameteren av led-ningskj ernen.2. Cutting clamp according to claim 1, characterized in that the internal width between the two tips of the legs is somewhat larger than the core diameter of the wire, that the clamping slot has a sharp-edged, step-shaped narrowing which is arranged between the tips and a clamping zone for the wire, and that the internal width of the clamping slot below the sharp-edged constriction is somewhat smaller than the diameter of the wire core.
NO871272A 1986-03-26 1987-03-26 CUTTING CLIP FOR CONNECTING ISOLATED ELECTRIC CABLES. NO871272L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3610337 1986-03-26

Publications (2)

Publication Number Publication Date
NO871272D0 NO871272D0 (en) 1987-03-26
NO871272L true NO871272L (en) 1987-09-28

Family

ID=6297380

Family Applications (1)

Application Number Title Priority Date Filing Date
NO871272A NO871272L (en) 1986-03-26 1987-03-26 CUTTING CLIP FOR CONNECTING ISOLATED ELECTRIC CABLES.

Country Status (3)

Country Link
EP (1) EP0238888A3 (en)
JP (1) JPS62232873A (en)
NO (1) NO871272L (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002033138A (en) * 2000-07-14 2002-01-31 Sumitomo Wiring Syst Ltd Pressure-contact terminal fitting
CN110014454A (en) * 2019-05-17 2019-07-16 季华实验室 Cutting tool and cutting equipment

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1263130B (en) * 1963-09-30 1968-03-14 Siemens Ag Contact element and device for fitting the contact element for telecommunications, in particular telephone systems
DE2254318C3 (en) * 1972-11-06 1975-04-30 Brown, Boveri & Cie Ag, 6800 Mannheim Clamp contact
US4062614A (en) * 1976-07-30 1977-12-13 Bell Telephone Laboratories, Incorporated Insulation piercing slotted beam electrical connector

Also Published As

Publication number Publication date
NO871272D0 (en) 1987-03-26
JPS62232873A (en) 1987-10-13
EP0238888A2 (en) 1987-09-30
EP0238888A3 (en) 1988-03-23

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