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
Links
- 238000005520 cutting process Methods 0.000 title claims description 25
- 238000009413 insulation Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 3
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
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
- 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
- H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
- H01R4/2416—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type
- H01R4/242—Connections 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)
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)
| 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)
| 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 |
-
1987
- 1987-02-27 EP EP87102836A patent/EP0238888A3/en not_active Withdrawn
- 1987-03-19 JP JP62062799A patent/JPS62232873A/en active Pending
- 1987-03-26 NO NO871272A patent/NO871272L/en unknown
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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