EP0000434B1 - Connecting block for interconnecting wires and with two matable connector parts and slotted beam contacts - Google Patents
Connecting block for interconnecting wires and with two matable connector parts and slotted beam contacts Download PDFInfo
- Publication number
- EP0000434B1 EP0000434B1 EP78300122A EP78300122A EP0000434B1 EP 0000434 B1 EP0000434 B1 EP 0000434B1 EP 78300122 A EP78300122 A EP 78300122A EP 78300122 A EP78300122 A EP 78300122A EP 0000434 B1 EP0000434 B1 EP 0000434B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- connector
- accordance
- conductors
- contacts
- beam contacts
- 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
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
- H01R4/2425—Flat plates, e.g. multi-layered flat plates
- H01R4/2429—Flat plates, e.g. multi-layered flat plates mounted in an insulating base
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
- H01R9/22—Bases, e.g. strip, block, panel
- H01R9/24—Terminal blocks
Definitions
- This invention relates to devices for making electrical cross-connections between two sets of conductors and, in particular, to apparatus for electrically interconnecting first conductors with associated second conductors, the apparatus comprising a first connector of insulative material, provided with individual receiving and indexing means for the first conductors, and a second connector for mating with the first connector, comprising a body member of insulative material and a plurality of slotted beam contacts, each in a cavity in the body, one end of the slotted beam contacts for contacting the first conductors when the first and second connectors are mated, the other end of the slotted beam contacts for contacting the second conductors.
- wire connecting blocks of the type including an indexing strip and a connecting block wherein the connecting block carries a plurality of slotted beam contacts, such as disclosed in U.S. Patent No. 3,611,264.
- the indexing strip has a plurality of uniform height, spaced-apart teeth along its length. These teeth aid in indexing a first set of conductors.
- a corresponding plurality of uniform height, spaced-apart teeth carried by the connecting block serve to index a second set of conductors to be cross-connected through the slotted beam contacts to the first set of conductors.
- this improved connecting block is a two- piece structure, the parts of which are secured together following insertion of the slotted beam contacts. While this connecting block arrangement has proved to be satisfactory in some applications, it was found that when the connecting block is placed over the indexing strip in cold temperatures, certain stresses are applied to the bond between two connector parts. These stresses often rupture the bond causing failure of the entire unit.
- U.S. Patent No. 3,778,750 describes another connecting block which is a two piece structure the parts of which are secured together following insertion of the contacts.
- One part of the block is formed with integral pins which extend through holes in the contacts into holes in the other part of the block.
- the connecting block is used without an indexing strip.
- the second connector includes separate contact holding means which project into the cavity through a hole in the wall thereof, which physically engage in said hole, which coact with the contacts so as to hold the contacts in the body member, and which physically engage in a recess in the opposite wall of the cavity, whereby insertion forces produced during engagement of said slotted beam contacts with said indexed conductors tend toward shearing of said holding means rather than splitting of the body member.
- the body member in which the contacts are held can be manufactured as one piece, so avoiding rupture of a bond between parts thereof.
- assembly of the slotted beam contacts in the connector is facilitated by the use of the contact holding means which enables the contacts to be inserted easily in the body member and then secured by the contact holding means.
- a preferred embodiment of the invention has a L-shaped skirt integral with and projecting away from the second connector for encasing the end of the first conductors.
- a first mating connector hereinafter denoted as indexing strip 11 and shown in Figs. 1 through 3, includes a longitudinally extending body member 12. Integral with body member 12 and extending generally perpendicular to an axis thereof are a plurality of spaced-apart teeth 13. Teeth 13 alternate in height to facilitate indexing of a first set of conductors 14 shown in Fig. 9. To further facilitate wire indexing, teeth 13, as shown in Fig. 1, have tapered tip regions 15 on adjacent sidewalls 16. These tapered tip regions 15 form generally funnel-shaped wire entry ways for directing conductors 14 into wire retaining slots 17 formed by spaced-apart teeth 13.
- Adjacent sidewalls 16 of spaced-apart teeth 13 have integral therewith a pair of opposed depressions 18 for capturing and holding an indexed conductor 14 between the teeth in a wire retaining slot 17.
- Opposed depressions 18 are located at an intermediate point along the height of teeth 13 above wire retaining slot 17.
- edges 20 and 21 Extending along a length of body member 12 are outwardly projecting edges 20 and 21, as shown in Fig. 2. Edges 20 and 21 are at different elevations along body member 12 with edge 20 being at a lower elevation than edge 21 when viewed from tapered tip regions 15 of spaced-apart teeth 13. This difference in elevation of edges 20 and 21 enables only one way engagement of indexing strip 11 with a second mating connector 40, as shown in Fig. 9. Edge 21 has a width nearly twice the width of edge 20. This difference in width facilitates cutoff of first conductors 14 by a tool (not shown).
- a generally funnel-shaped channel 22 which is integral with sidewall 16 of spaced apart teeth 13.
- a similar channel 22 is integral with an opposed sidewall 16 of teeth 13.
- These funnel-shaped channels 22 have widths of greater extent at tip regions 15 of teeth 13 to facilitate directing slotted beam contacts 30, carried by second mating connector 40 and shown in Fig. 4, into engagement with indexed conductors 14, as shown in Fig. 9.
- Indexing strip 11 is affixed to a support carrier (not shown), similar to that illustrated as element 36 in Fig. 2 of U.S. Patent No. 3,798,587, by cylindrical posts 23. Posts 23 are inserted into apertures in the support carrier and heated to produce an expanded head similar to that of a rivet.
- a plurality of truncated cylindrical projections 24 are integrally provided on outer walls of spaced-apart teeth 13. Projections 24, as shown in Figs. 2 and 3, have a greater thickness near an edge opposite tip regions 15 of spaced-apart teeth 13. This coupling arrangement will be considered in further detail following the description of second mating connector 40.
- Each of contacts 30 includes a central portion 31 which has first and second pairs of oppositely directed cantilever beams 32 and 33 extending therefrom. Each of the beams in the pairs of beams 32 and 33 are spaced apart from one another by elongated generally rectangular apertures 34 and 35, respectively. Apertures 34 and 35 extend from central portion 31 to a point near a pair of oppositely directed insulation-penetrating edges 36 and 37, respectively, at the ends of beams 32 and 33. It should be noted that beams 33 are of shorter length than beams 32 to increase the force provided by edges 37 during engagement with conductor insulation. Also included in central portion 31 is a generally oval-shaped aperture 25 used in mounting contact 30 in mating connector 40.
- the second mating connector 40 shown in Fig. 4, comprises a body member 41 which has a plurality of elongate generally rectangular cavities 42 therein for slidably engaging slotted beam contacts 30. Extending partially along planar inner sidewalls 43 of cavities 42 are channel cavities 44. A corresponding plurality of spaced-apart apertures 45 are included in an outer sidewall 46 of body member 41. Spaced-apart apertures 45 are aligned in one-to-one correspondence with rectangular cavities 42 and channel cavities 44.
- Anchoring member 50 shown in Fig. 5 is comprised of a generally flat rectangular member 51. Integral with member 51 and extending outwardly therefrom are a plurality of spaced-apart generally triangular projections 52. Extending from tops of triangular projections 52 are projections 53 and 54. Interposed between projections 53 and 54 is a notch 55 the width of which is approximately equal to a width of central portion 31 between apertures 25 and 34 of contact 30. The projections 52, 53, 54 extend through and physically engage in the apertures 45 in the wall 46 of respective cavities 42, to hold the contacts in the cavities.
- Triangular projections 52 in conjunction with projections 53 and 54 and the depth of notch 55, limit the extent of engagement of slotted beam contact 30 with rectangular member 51. It should be noted that projection 53 extends through slot 34 in the contact to physically engage in channel cavities 44 and projection 54 extends through aperture 25 in the contact to physically engage in aperture 26.
- This mounting arrangement for slotted beam contacts 30 couples insertion forces produced during engagement of second mating connector 40 with indexing strip 11 into projections 53 and 54. Consequently, the insertion forces tend toward the shearing of projections 53 and 54 rather than the splitting of body member 41.
- the former includes a projecting lip 56 along a lengthwise edge 57.
- Outer sidewall 46 has a mating groove 48 extending along its length. This lip and groove arrangement provides a polarized mating of anchoring member 50 with body member 41.
- the two members 50 and 41 are secured to one another, for example, by ultrasonic welding.
- body member 41 has integral therewith and extending outwardly away therefrom a generally L-shaped skirt 61.
- a plurality of scallops 62 as shown in Fig. 4, along the base leg of the "L” and along opposite edge 63, engage conductors 14, as shown in Fig. 9, and hold them in place between indexing strip 11 and mating connector 40.
- Skirt 61 encases exposed ends 19 of first conductors 14 to electrically isolate them from one another. Not only does the insulative material of which both indexing strip 11 and mating connector 40 are made provide electrical isolation, but skirt 61 in conjunction with sealing compound (not shown) shields exposed ends 19 to prevent any accumulation of moisture which could cause electrical short circuits.
- mating connector 40 with the plurality of slotted beam contacts 30 therein is brought into engagement with indexing strip 11.
- Mating connector 40 is coupled securely to indexing strip 11 by projections 24 which engage a corresponding plurality of circular apertures 49 in sidewall 46 and skirt 61.
- Circular apertures 49 are aligned in correspondence with truncated cylindrical projections 24 so that apertures 49 surround projections 24 with the greater thickness inhibiting separation of mating connector 40 from indexing strip 11 once the two are mated.
- mating connector 40 holds the slotted beam contacts 30 in a spatial relationship so that an individual contact 30 is engageable with an individual conductor 14. Opposite ends of contacts 30 are now available for engagement with second conductors 39, as shown in Fig. 9.
- mating connector 40 has a plurality of spaced-apart, alternating height teeth 65 integral with body member 41.
- Teeth 65 have a configuration somewhat similar to that of teeth 13 on indexing strip 11 insofar as teeth 65 have tapered tip regions 66 forming funnel-shaped wire entry ways 67.
- Projections 71 have a thickness of greater extent at a central point therein which is removed from taper tip regions 66. Projections 71 facilitate capture and inhibit conductors 39 from separating from mating connector 40 after being seated in contacts 30.
- extended lateral projections 72 on teeth 65 as shown in Fig. 8. These extended projections 72 increase the electrical path length between adjacent exposed conductor ends. On outer edges of alternate ones of projections 72 are projecting lips 73 for facilitating engagement of a test cord (not shown) with mating connector 40.
Landscapes
- Multi-Conductor Connections (AREA)
- Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US813306 | 1977-07-06 | ||
US05/813,306 US4118095A (en) | 1977-07-06 | 1977-07-06 | Wire connecting block |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0000434A1 EP0000434A1 (en) | 1979-01-24 |
EP0000434B1 true EP0000434B1 (en) | 1983-05-11 |
Family
ID=25212012
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP78300122A Expired EP0000434B1 (en) | 1977-07-06 | 1978-07-06 | Connecting block for interconnecting wires and with two matable connector parts and slotted beam contacts |
Country Status (6)
Country | Link |
---|---|
US (1) | US4118095A (es) |
EP (1) | EP0000434B1 (es) |
JP (1) | JPS58158B2 (es) |
DE (1) | DE2862245D1 (es) |
ES (1) | ES471510A1 (es) |
IT (2) | IT7853481V0 (es) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE41311E1 (en) | 1992-02-24 | 2010-05-04 | Commscope, Inc. Of North America | High frequency electrical connector |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4210379A (en) * | 1979-03-15 | 1980-07-01 | Amp Incorporated | Modular barrier block |
FR2457574A1 (fr) * | 1979-05-25 | 1980-12-19 | Mars Actel | Dispositif de raccordement de conducteurs electriques isoles |
FR2457573A1 (fr) * | 1979-05-25 | 1980-12-19 | Mars Actel | Connecteur autodenudant |
JPS5849821U (ja) * | 1981-10-01 | 1983-04-04 | 日本放送協会 | 可変デイジタル出力装置 |
US4789354A (en) * | 1987-09-14 | 1988-12-06 | Minnesota Mining And Manufacturing Company | Voice/data communication termination connector |
US4941844A (en) * | 1988-10-14 | 1990-07-17 | Hopkins Manufacturing Corporation | Electrical connector |
JPH06507995A (ja) * | 1991-06-12 | 1994-09-08 | モド−タップ ダブリュー コーポレイション | 電気コネクタ |
US5178558A (en) * | 1991-09-23 | 1993-01-12 | Minnesota Mining And Manufacturing Company | Cross connect system for telecommunications systems |
US5312270A (en) * | 1992-08-25 | 1994-05-17 | The Siemon Company | Wiring block having detachable leg assemblies |
US5370541A (en) * | 1993-01-25 | 1994-12-06 | Minnesota Mining And Manufacturing Company | Repositionable termination module |
US5411414A (en) * | 1993-08-17 | 1995-05-02 | Premier Telecom Products, Inc. | Electrical connector |
US5409404A (en) * | 1994-01-21 | 1995-04-25 | The Whitaker Corporation | Electrical connector with slotted beam contact |
US5503572A (en) * | 1994-05-17 | 1996-04-02 | Mod-Tap Corporation | Communications connectors |
GB2293284B (en) * | 1994-09-13 | 1998-05-20 | Mod Tap W Corp | Insulation displacement connector |
US5735714A (en) * | 1995-04-06 | 1998-04-07 | Ortronics Inc. | Information management outlet module and assembly providing protection to exposed cabling |
US5591045A (en) * | 1995-05-18 | 1997-01-07 | The Whitaker Corporation | Wire connecting system |
US5741153A (en) * | 1995-07-27 | 1998-04-21 | Ortronics, Inc. | Modular connectors including terminated rear connector designation for insulation displacement connectors |
US5711067A (en) | 1996-09-26 | 1998-01-27 | Jenner; Royal | Method of forming electrical connector |
US6340317B1 (en) | 1998-11-20 | 2002-01-22 | International Connectors & Cable Corporation | Hinged wiring block |
US7261590B2 (en) * | 2004-04-26 | 2007-08-28 | Panduit Corp. | Rack-mounted punchdown panel and punchdown base |
DE102005041778A1 (de) * | 2005-09-01 | 2007-03-08 | Phoenix Contact Gmbh & Co. Kg | Elektrische Anschlußanordnung |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3798587A (en) * | 1972-01-17 | 1974-03-19 | Bell Telephone Labor Inc | Devices for making electrical connections |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3496522A (en) * | 1967-04-28 | 1970-02-17 | Bell Telephone Labor Inc | Wire connecting blocks |
US3533054A (en) * | 1968-01-11 | 1970-10-06 | United Carr Inc | Electrical terminal structure |
US3510823A (en) * | 1968-04-29 | 1970-05-05 | Joseph J Cervenka | Fastener or terminal lug device and method of making same |
US3611264A (en) * | 1968-12-27 | 1971-10-05 | Bell Telephone Labor Inc | Wire connecting blocks |
CA1002627A (en) * | 1971-12-22 | 1976-12-28 | Robert W. Henn | Universal miniature connector for plural conductors |
BE792672A (fr) * | 1971-12-22 | 1973-03-30 | Western Electric Co | Connecteur miniature universel pour conducteurs |
US3778750A (en) * | 1972-02-10 | 1973-12-11 | Panduit Corp | Wire termination and splicing system |
JPS5239671Y2 (es) * | 1974-07-12 | 1977-09-08 | ||
FR2286520A1 (fr) * | 1974-09-30 | 1976-04-23 | Reliable Electric Co | Bloc de raccordement notamment pour repartiteur telephonique |
US3976350A (en) * | 1974-10-21 | 1976-08-24 | Bunker Ramo Corporation | Electrical connector assembly having insulated insulation piercing contact portions |
US3923362A (en) * | 1974-12-19 | 1975-12-02 | Northern Electric Co | Wire connecting blocks |
GB1528971A (en) * | 1975-08-02 | 1978-10-18 | Amp Inc | Electrical connectors |
-
1977
- 1977-07-06 US US05/813,306 patent/US4118095A/en not_active Expired - Lifetime
-
1978
- 1978-07-05 IT IT7853481U patent/IT7853481V0/it unknown
- 1978-07-05 IT IT68579/78A patent/IT1108534B/it active
- 1978-07-06 DE DE7878300122T patent/DE2862245D1/de not_active Expired
- 1978-07-06 EP EP78300122A patent/EP0000434B1/en not_active Expired
- 1978-07-06 JP JP53081526A patent/JPS58158B2/ja not_active Expired
- 1978-07-06 ES ES471510A patent/ES471510A1/es not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3798587A (en) * | 1972-01-17 | 1974-03-19 | Bell Telephone Labor Inc | Devices for making electrical connections |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE41311E1 (en) | 1992-02-24 | 2010-05-04 | Commscope, Inc. Of North America | High frequency electrical connector |
Also Published As
Publication number | Publication date |
---|---|
IT7868579A0 (it) | 1978-07-05 |
JPS58158B2 (ja) | 1983-01-05 |
IT7853481V0 (it) | 1978-07-05 |
EP0000434A1 (en) | 1979-01-24 |
ES471510A1 (es) | 1979-01-16 |
JPS5415187A (en) | 1979-02-03 |
IT1108534B (it) | 1985-12-09 |
DE2862245D1 (en) | 1983-06-16 |
US4118095A (en) | 1978-10-03 |
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