EP0264209A2 - Elektrischer Verbinder - Google Patents
Elektrischer Verbinder Download PDFInfo
- Publication number
- EP0264209A2 EP0264209A2 EP87308733A EP87308733A EP0264209A2 EP 0264209 A2 EP0264209 A2 EP 0264209A2 EP 87308733 A EP87308733 A EP 87308733A EP 87308733 A EP87308733 A EP 87308733A EP 0264209 A2 EP0264209 A2 EP 0264209A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- connector
- pair
- slit
- circular
- strip
- 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- Withdrawn
Links
Images
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
- H01R4/2437—Curved plates
Definitions
- the present invention relates to an electrical connector particularly but not exclusively for use in the telecommunications industry.
- These distribution points consist of block terminals containing telephone wire connectors, which from time to time have to be removed for the purposes of testing or rearrangement.
- an electrical connector comprising a connector body, means on the connector body defining a slit for severing insulation on a wire pair to be connected passed through the slit, and shorting the pair therein, and a slidable member on said body actuable to move a said wire pair through and away from said slit.
- the above device solves the problem of re-usability because the slidable member, in the form of a plunger guided for reciprocable movement in the connector body, is actuable by finger pressure to withdraw the wire pair from the slit thereby to release the wires for testing purposes in contrast to known insulation displacement connectors where this is not possible.
- the insulation displacement re-usable connector shown in the drawings comprises a connector block 1 of square cross section, made of an insulating material, and formed of two identical separable block half-sections 2 and 3.
- An axial passageway 4 of circular cross section extends through the block 1, intercepting axially aligned transverse entrant passageways 5 and 6 leading to the passageway 4.
- transverse passageways 5 and 6 are of circular and square cross section respectively, lying in the plane of separation of the block half-sections 2 and 3.
- the entrant passageways 5 and 6 are formed from cooperating opposing grooves 7 and 8 provided in the mating surfaces 9 of the block half-sections 2 and 3.
- the block half-sections 2 and 3 are held together by means of four screws 10 and associated nuts 11, although other connection means are possible, for example by the provision of cooperating formations on the mating faces which would avoid the need to employ screws and nuts.
- a cylindrical brass collar 12 is located in snug-fit relationship, in the axial passageway 4.
- the collar 12 is split at 13.
- a pair of identical semi-circular plates 14 are brazed or welded between the opposing edges E defining the split 13 of the collar 12, to form a pair of longitudinal slits S between opposing edges of the plates 14, both slits S extending midway between the edges E and having axes which are at 90° to the axis of the collar 12.
- the entrance to the slits S within the collar 12 are widened out at S ⁇ as shown.
- the plates 14 project from the peripheral surface of the collar 12, to engage the entrant passageway 5 as seen in Figures 1 and 2.
- An aperture 15, see Figure 4 is formed in the peripheral surface of the collar 12, the axis of the aperture 15 lying on that of the entrant passageway 6, and thus on the axis defined by the plates 14.
- a plunger 16 is positioned for slidable movement in the entrant passageways 5 and 6 of the connector block 1.
- the plunger 16 has two plunger halves, 17 and 18, one half 17 of which is of circular cross section and which engages in the collar 14 to protrude from the entrant aperture 5, the other half 18 being of square cross section to engage the aperture 15 and protrude from the entrant aperture 6.
- the cylindrical half 17 of the plunger 16 has a pair of circular bores 19, positioned such that, with the square-sectional plunger half 18 positioned in the square sectioned entrant aperture 6, and unable to rotate thereby, the openings to the bores 19 are moveable in line with the slits S between the plates 14, as the plunger 16 is moved in the direction of the arrow A in Figure 1.
- each wire of the pair are inserted in the bores 19.
- the plunger 16 is then depressed in the direction of arrow A to cause the wires to enter both upper and lower slits S between the plates 14. This acts to sever the insulation in the wires to effect a closed circuit in the pair through the plates 14.
- the connector is then re-usable.
- the material of the plates 14 is such that the slits S as by yielding elastically, are able to accommodate various wire sizes in the range 0.5mm to 1.1mm in diameter, without varying the dimension of the slit itself.
- FIG. 7 and 8 A variant of the invention is shown in Figures 7 and 8. This was developed to avoid the two part manufacture of the main connector part of the device comprising the brass collar 12 and plates 14 of the Figure 1 through 5 embodiment, and lends itself more readily to mass production using rapid stamping and forming techniques.
- the main connector part of the device is made from an integral piece of flat spring copper strip 20, having a rectangular cut-out 21, in each end of the strip 21 and on its longitudinal axis.
- An oval hole 22 is provided centrally of the strip 21.
- Each limb 23 formed by the cut-outs 21 is turned over at its end to form a spaded end portion 24 the plane of which lies at right angles to the plane of its associated side piece 22, as shown in Figure 7, stage 2.
- the strip 20 is then folded, as shown in Figure 7, stage 3, into a U-shape 25.
- End sections 26 of the limbs 23 are then turned over, as shown in Figure 7, stage 4, such that the edges 27 of those spaded end portions 24 at either end of the strip 21 and lying on the same side of the longitudinal axis of the strip 20, face one another, and under the spring tension of the strip 21, to form a pair of narrow slits 28.
- An oval passageway 29 on the same axis as the oval hole 22, see Figure 8, is thus formed between one respective pair of spaded end portions forming one of the slits 28 and the other respective pair forming the other of the slits 28, with the plane of the slits 28 passing through the axis of the oval passageway 29 and the oral hole 22 in the body of the strip 20.
- the main connector part thus formed from the strip 20 is positioned in the axial passageway of a connector block (not shown) of the type 1 discussed with reference to Figures 1 to 6, the axial passage being designed to accept the folded strip in tight fit secure relationship.
- the device is operable by means of a plunger 30, see Figure 8, of oval cross-section corresponding to the oval holes 22 and 29 in the main connector part formed from the strip 20.
- a plunger 30, see Figure 8 of oval cross-section corresponding to the oval holes 22 and 29 in the main connector part formed from the strip 20.
- the corresponding axially aligned passageways in the connector block of this alternative embodiment in which the plunger 30 is slidably mounted namely those corresponding to entrant passageways 5 and 6 in the Figure 1 to 5 embodiment, are of oval crosssection as will be appreciated.
- the plunger 30 is thus unable to rotate but is free for axial slidable movement in a coaxial passageway extending through the connection block provided by the oval holes 22 and 29, and the oval passageways in the body of the connector block.
- the plunger 30 is provided with holes 31 for receiving the wire to be connected lying in alignment with the slits 28.
- the plunger 30 may thus be actuated by manual operation to force the wires to be connected through the slits 28, thereby to pierce the wire insulation in the slits 28, and make the electrical connection of the two wires as required through the copper strip 20 of the main connector part.
- the slits 28 will accommodate electrical wire of varied dimensions, due to their yieldability as with the slits S of the Figure 1 to 5 embodiment.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB868623560A GB8623560D0 (en) | 1986-10-01 | 1986-10-01 | Electrical connector |
GB8623560 | 1986-10-01 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0264209A2 true EP0264209A2 (de) | 1988-04-20 |
EP0264209A3 EP0264209A3 (de) | 1988-08-10 |
Family
ID=10605074
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87308733A Withdrawn EP0264209A3 (de) | 1986-10-01 | 1987-10-01 | Elektrischer Verbinder |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0264209A3 (de) |
GB (1) | GB8623560D0 (de) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1907950A1 (de) * | 1968-02-16 | 1969-09-25 | Northern Electric Co | Abisolierende Kontaktklemme |
US3611263A (en) * | 1968-06-14 | 1971-10-05 | Krone Kg | Clip connector terminal for insulated conductors |
DE2449042A1 (de) * | 1973-10-29 | 1975-04-30 | Amp Inc | Elektrischer verbinder |
US4508409A (en) * | 1983-06-28 | 1985-04-02 | Amp Incorporated | Insulation piercing coaxial grip splice device |
-
1986
- 1986-10-01 GB GB868623560A patent/GB8623560D0/en active Pending
-
1987
- 1987-10-01 EP EP87308733A patent/EP0264209A3/de not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1907950A1 (de) * | 1968-02-16 | 1969-09-25 | Northern Electric Co | Abisolierende Kontaktklemme |
US3611263A (en) * | 1968-06-14 | 1971-10-05 | Krone Kg | Clip connector terminal for insulated conductors |
DE2449042A1 (de) * | 1973-10-29 | 1975-04-30 | Amp Inc | Elektrischer verbinder |
US4508409A (en) * | 1983-06-28 | 1985-04-02 | Amp Incorporated | Insulation piercing coaxial grip splice device |
Also Published As
Publication number | Publication date |
---|---|
EP0264209A3 (de) | 1988-08-10 |
GB8623560D0 (en) | 1986-11-05 |
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Legal Events
Date | Code | Title | Description |
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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 |
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AK | Designated contracting states |
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PUAL | Search report despatched |
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17P | Request for examination filed |
Effective date: 19890201 |
|
17Q | First examination report despatched |
Effective date: 19911119 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19920707 |