US3926498A - Electrical connector and insulation-piercing contact member - Google Patents

Electrical connector and insulation-piercing contact member Download PDF

Info

Publication number
US3926498A
US3926498A US288998A US28899872A US3926498A US 3926498 A US3926498 A US 3926498A US 288998 A US288998 A US 288998A US 28899872 A US28899872 A US 28899872A US 3926498 A US3926498 A US 3926498A
Authority
US
United States
Prior art keywords
terminal
conductor
notch
contact
flange
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
US288998A
Other languages
English (en)
Inventor
Jr Paul Peter Hoppe
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.)
Allied Corp
Original Assignee
Bunker Ramo Corp
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 Bunker Ramo Corp filed Critical Bunker Ramo Corp
Priority to US288998A priority Critical patent/US3926498A/en
Priority to IL43115A priority patent/IL43115A/en
Priority to ZA736012A priority patent/ZA736012B/xx
Priority to IN2035/CAL/1973A priority patent/IN140808B/en
Priority to DE2344830A priority patent/DE2344830C2/de
Priority to AU60113/73A priority patent/AU491836B2/en
Priority to US395746A priority patent/US3867005A/en
Priority to NLAANVRAGE7312421,A priority patent/NL175682C/xx
Priority to FR7332822A priority patent/FR2200725B1/fr
Priority to GB4312273A priority patent/GB1443359A/en
Priority to DD173462A priority patent/DD105941A5/xx
Priority to SE7312458A priority patent/SE395795B/xx
Priority to CA181,021A priority patent/CA1011421A/en
Priority to HU73BU686A priority patent/HU174265B/hu
Priority to SU731958751A priority patent/SU602137A3/ru
Priority to IT28869/73A priority patent/IT998600B/it
Priority to CH1314773A priority patent/CH572285A5/xx
Priority to PL1973165216A priority patent/PL83803B1/pl
Priority to JP10336773A priority patent/JPS576672B2/ja
Priority to BE135666A priority patent/BE804874A/xx
Priority to BR7170/73A priority patent/BR7307170D0/pt
Priority to DK505473AA priority patent/DK141423B/da
Priority to DK281575A priority patent/DK281575A/da
Priority to DK281675A priority patent/DK281675A/da
Application granted granted Critical
Publication of US3926498A publication Critical patent/US3926498A/en
Priority to SE7609805A priority patent/SE407131B/xx
Priority to US05/769,106 priority patent/USRE31132E/en
Assigned to ALLIED CORPORATION A CORP. OF NY reassignment ALLIED CORPORATION A CORP. OF NY ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: BUNKER RAMO CORPORATION A CORP. OF DE
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/28—Contacts for sliding cooperation with identically-shaped contact, e.g. for hermaphroditic coupling devices
    • 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
    • H01R4/2445—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 having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives
    • H01R4/2466—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 having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives the contact members having a channel-shaped part, the opposite sidewalls of which comprise insulation-cutting means

Definitions

  • Each contact member is formed from a single piece of thin, conductive sheet metal, with a contact element at one end and a terminal element at the other; the terminal element is channel-shaped with two terminal flanges each struck from a channel wall and bent across the channel, preferably into interlocking relation with another channel wall.
  • Each terminal flange has a notch with thin converging walls affording a cutting section to cut the insulation on a conductor inserted into the notch, a transition section with tapered walls to spread the insulation, and a terminal section with thick, smooth walls to engage the conductor in wiping electrical contact.
  • the contact mounts include resilient retention slots for holding the electrical conductors in the terminal elements of the contact members.
  • the conventional soldered connection has long been recognized as requiring improvement or replacement.
  • One alternative. gaining increasing acceptance. entails the use of insulation-piercing terminals for the contact members of the connector. These terminals cut through the insulation and establish an electrical connection to the conductor without preliminary stripping and without the conventional soldering step.
  • the insulationpicrcing terminals are usually of forked construction. with cutting edges that penetrate the wire insulation and that also serve as contact jaws that make the necessary electrical connection with the conductor. That is. a forked terminal element on the connector contact serves both as an insulation cutting device and as an electrical contact.
  • a particular object of the invention is to provide a new and improved insulation-piercing terminal element. formed as a rt of a unitary sheet metal contact member for an electrical connector. that does not cut into the electrical conductor to an appreciable extent when a connection is made.
  • Another object of the invention is to provide a new and improved unitary contact member for an electrical connector. formed from a single piece of thin. cond active sheet metal. that effectively pierces and penetrates the insulation on a conductor and that also provides a sliding friction contact. in engaging the conductor. once the insulation has been penetrated.
  • Another object of the invention is to provide a new and improved insulation-piercing terminal element for an electrical connector contact member of the kind constructed from a single piece of thin conductive sheet metal that is inherently strong and rugged and capable of withstanding several insertions and removals of an electrical conductor in changing connections to the contact member.
  • a further object of the invention is to provide a new and improved electrical connector. of the kind using individual sheet metal contacts mounted in mating dielectric contact mounts. that affords effective retaining means for holding individual electrical conductors in engagement with insulation-piercing terminal elements formed integrally with the contact members.
  • a specific object of the invention is to provide a new and improved unitary sheet metal contact member for a multi-circuit electrical connector that is inherently simple and inexpensive in construction. yet provides for optimum electrical qualities and mechanical qualities in the completion of solderlcss electrical terminal connections.
  • the invention relates to a unitary contact member. formed from a single piece of thin. conductive sheet metal. for an electrical connector of the kind comprising a first dielectric contact mount and a second dielectric contact mount each having a plurality of contact mounting passages. the two contact mounts fitting together to align the inner ends of the contact passages in the first mount one-for-onc with the inner ends of the contact passages in the second mount.
  • the contact member comprises an active contact element. positioned in the inner end of a given passage in one mount. for engaging a mating active contact element positioned in the inner end of the aligned passage in the other mount.
  • the contact member further comprises an integral terminal element. comprising an elongated channel of U-shaped cross-sectional configuration.
  • the terminal element includes at least one terminal flange struck from a wall of the channel and bent inwardly to extend transversely of the channel. the flange having an upwardly opening notch for receiving an insulationcovered electrical conductor.
  • the upper portion of the notch has thin edges which converge downwardly to afford a cutting section for shearing through the insulation on the conductor.
  • the medial portion of the notch has gradually thickened edges constituting a transition section for spreading the insulation on the conductor.
  • the lower portion of the notch has smooth. thick edges free of cutting edges and generally curved affording a pressure jaw terminal section engaging the electrical conductor in wiping contact.
  • An electrical connector for interconnecting a plurality of electrical circuits in accordance with the invention. comprises a first contact mount and a second contact mount. each formed of molded dielectric material and each having a plurality of contact mounting passages extending therethrough'. the two contact mounts fit together to align the IIIIIL'I ends of the contact passages in the first mount one-for-one with the inner ends of the contact passages in the second mount. The outer end of each contact passage is of elongated U-shapetl configuration.
  • a plurality of unitary contact members each formed from a single piece of thin. conductive sheet metal. are included in the connector, one contact member mounted in each contact passage.
  • Each contact member includes an active contact element positioned in the inner end of the contact passage and an integral terminal element disposed within the outer end of the contact passage.
  • the terminal element of each contact member comprises an elongated channel smaller in width than the width of the outer end of the contact passage and includes at least one terminal flange extending transversely of the channel and having an insulation-piercing notch for receiving an insulationcovered electrical conductor and completing an electrical connection between the conductor and the contact member.
  • Resilient retention means molded integrally with each contact mount, are provided for releasably retaining the individual electrical conductors in the terminal elements of the contact members.
  • FIG. I is a plan view of the plug member of an electrical connector constructed in accordance with the present invention.
  • FIG. 2 is a side elevation view of the plug member illustrated in FIG. 1;
  • FIG. 3 is a side elevation view of a receptacle member for an electrical connector constructed in accordance with the present invention
  • FIG. 4 is a bottom view of the receptacle member illustrated in FIG. 3;
  • FIG. 5 is a transverse sectional view, on an enlarged scale, of the plug and receptacle members of FIGS. 2 and 3, aligned for joining with external wire connections;
  • FIG. 6 is a side elevation view, drawn to a much larger scale than preceding figures, of the terminal element of a contact member constructed in accordance with one embodiment of the invention
  • FIG. 7 is a front elevation view of the contact member of FIG. 6, with an external wire connection;
  • FIG. 8 is an end view taken approximately along line 8-8 in FIG. 7, with the wire in cross section;
  • FIG. 9 is a side elevation view, on an enlarged scale, of the terminal element of a contact member constructed in accordance with another embodiment of the invention.
  • FIG. 10 is a front elevation view of the contact member of FIG. 9;
  • FIG. 11 is an end view taken approximately along line 1111 in FIG. 10, with a part of the dielectric contact mount and a part of an external conductor also illustrated;
  • FIG. 12 is an end view, similar to FIG. 11, illustrating a modification in the construction of the terminal element of FIGS. 9-11;
  • FIG. 13 is an isometric view, on a reduced scale, of the contact member terminal element of FIGS. 9-11;
  • FIG. 14 is a side elevation view of the terminal element of a contact member constructed in accordance with another embodiment of the invention.
  • FIG. 15 is a front elevation view of the terminal element illustrated in-FIG. 14;
  • FIG. 16 is an isometric projection of thc terminal elcment of FIGS. 14 and 15;
  • FIG. 17 is a side elevation view of the terminal element for a contact member constructed in accordance with an additional embodiment of the invention.
  • FIG. 18 is a front elevation view of the terminal element illustrated in FIG. 17;
  • FIG. 19 is an orthagonal projection of the terminal element illustrated in FIGS. 17 and 18;
  • FIG. 20 is an orthagonal projection illustrating a limited modification of the construction shown in FIGS. 17-19;
  • FIG. 21 is a detail illustration of a part of the electrical connector receptacle shown in FIG. 3, taken approximately as indicated by line 21-21 therein.
  • FIGS. 1-5 illustrate the basic structure of an electrical connector constructed in accordance with one embodiment of the present invention.
  • the electrical connector comprises a plug unit 30, shown in FIGS. 1, 2 and 5, and a receptacle unit 40 illustrated in FIGS. 3, 4 and 5.
  • Plug unit 30 includes a first contact mount 31 of molded dielectric material having a plurality of individual contact mounting supports or passages 32; passages 32 extend completely through mount 31, as best shown in FIG. 5.
  • Plug unit 30 further includes a corresponding plurality of contact members 33, each of the contact members 33 being mounted in one of the contact passages 32 (FIGS. 2 and 5). Each contact member 33, as shown in some detail in FIG.
  • an active contact element 34 comprising a thin, flat, resilient metal element bent into a re-entrant hook configuration at the end 35 to engage in a small retaining slot 36 formed in mount 31 adjacent the inner end of passageway 32.
  • Contactmember 33 further comprises an integral terminal element 37 which is positioned in the outer end of the contact passage 32 which has an upper longitudinal side open for receiving the insulation cov. ered electrical conductor.
  • Contact member 33 is held in contact passage 32 by retainer elements 38 and 39, element 39 constituting a tab that is bent up to a retaining position as shown in FIG. 5 after the contact member has been inserted into passage 32.
  • receptacle unit 40 (FIGS. 3-5) is similar to but complementary to plug unit 30.
  • receptacle 40 comprises a contact mount 41 of molded dielectric material having a plurality of contact passages 42 corresponding in number and position to the contact passages 32 in mounting block 31 and are arranged in two parallel rows and 71 as shown in FIGS. 3-4.
  • FIGS. 1-5 there are fifty contacts in each of the connector halves 30 and 40; this number may vary substantially, depending on the number of circuits to be interconnected.
  • a unitary conductive sheet metal contact member 43 is mounted in each contact passage 42 of receptacle mount 41.
  • Each contact member 43 as shown in FIG. 5, comprises a flat resilient active spring Contact member 44 bent over at its inner end 45 to fit into a small retaining slot 46 in mounting block 41.
  • the outer portion of contact member 43 comprises a terminal element 47.
  • Each contact member 43 is held in position in its contact passage 42 in mounting block 41 by means of appropriate retainer elements 48 and 49 (FIG. 5).
  • the construction of the connector comprising plug unit 30 and receptacle unit 40 is essentially similar to the multiple-contact electrical connector described and illustrated in Yopp US. Pat. No. 3.002.l 76.
  • the individual contact members 33 can be readily and rapidly mounted in the plug mounting block 31 by inserting the contact members in the individual contact passages 32 and then bending each of the retaining tabs 39 outwardly to lock the contact members in place. The same technique is followed in assembling the contact members 43 in contact passages 42 in the mount 41 of receptacle unit 40.
  • each plug contact member 33 engages the active contact element 44 of the corresponding contact member 43 in the receptacle unit.
  • the yielding active contact elements of each mating pair of contact members afford dependable engagement and adequate contact pressures, without overflexing of either contact in the pair.
  • the specific design shown for the contact elements allows the use of metals, in fabrication of the contact elements, of relatively low spring quality and high electrical conductivity, affording a connector that is small in size yet adapted to normal voltages and currents used for data communication.
  • the mating contact surfaces are maintained clean and bright and the connector joins with a snap-in action.
  • plug unit 30 and receptacle unit 40 are each usually provided with a metal housing for increased strength and protection; the housings have been omitted from the drawings because they are not critical to the present invention.
  • the terminal elements of the individual contact members are of channel-shaped configuration, and electrical connections to individual conductors are effected by conventional solder techniques.
  • soldering is not employed. That is, the unitary contact members 33 and 43, each formed from a single piece of thin conductive sheet metal, include provision for solderless insulation-piercing connection to an insulated electrical conductor simply by insertion of the electrical conductor into the terminal element of the contact member.
  • FIGS. 6, 7 and 8 illustrate, on a greatly enlarged scale, one construction that may be employed, in accordance with the present invention, for the terminal element 47 formed at the outer end of each of the contact members 43.
  • the term outer end refers to the portion of the connector to which individual external electrical conductors are connected. It will be recognized that the configuration of the connector can be changed so that the terminal elements of the contact members are not linear extensions of the active contact elements, without changing this relationship.
  • the outer end of contact member 43 comprising terminal element 47, as shown in FIGS. 6-8, comprises an elongated channel of U-shaped cross sectional configuration having a channel-forming walls illustrated by bottom wall 51 and side walls 52 and 53.
  • the retainer tab 49 is formed integrally with side wall 53. Tab 49 is shown in its initial position, bent over at approximately 90 to the top of side wall 53, this being the initial position of the tab when contact member 43 is inserted in the dielectric mount 4
  • Terminal element 47 of contact member 43 includes two terminal flanges 4 and 55.
  • Flange 54 is formed by two opposed transverse flange elements 54A and 54B struck from side walls 52 and 53 respectively.
  • the two flange elements 54A and 54B are bent inwardly across the end of the channel constituting tenninal element 47, forming an upwardly opening notch 56 (FIGS. 7 and 8).
  • the upper portion of notch 56 has downwardly converging thin-edges walls 57A and 578 (FIG. 8) that afford a cutting section for shearing through the insulation on an insulated electrical conductor.
  • the medial portion of notch 56 has gradually thickened edges. constituting a transition section 58, for spreading the insulation away from a conductor inserted in the notch.
  • the lower portion of notch 56 has smooth, rounded edges along its walls that afford a terminal section 59 constituting a pressure jaw that engages an electrical conductor in wiping contact.
  • the second terminal flange 55 of terminal element 47 (FIGS. 6 and 7) is similar in construction to flange 54. It includes a first flange element 55A struck from channel wall 52 (FIG. 7) and bent inwardly across the channel. A second flange element 558 is struck from wall 53 and bent inwardly across the channel in alignment with flange element 55A. Both of the flange elements are formed with sloping upper walls and are bent back upon each other to afford a cutting section, a transition section, and a terminal section as described for flange 54 (FIGS. 7 and 8).
  • a metallic conductor 6I with an electrical insulation covering 62 is inserted into the two notches in the terminal flanges 54 and 55 as generally indicated in FIG. 7.
  • the converging notch walls such as the walls 57A and 578 (FIG. 8)
  • the conductor is forced further downwardly beyond lower ends 60A and 60B of thin-edged walled 57A and 57B hand into notch 56 in flange 54, it enters the transition section 58. As illustrated in FIG.
  • transition section 58 is disposed at the upper ends 68A and 688 or entrance to lower transition section 58 and separates transition section 58 from the lower ends 60A and 60B of the thin flat cutting edges of walls 57A and 578.
  • the gradually thickened walls for the notch beginning at transition section 58 tend to spread the insulation.
  • the lower folded portions of the notch walls, in the lower terminal section 59 engage the conductor 61 without cutting into it and apply a full normal force in sliding friction contact with the conductor.
  • FIG. 8 the final position of an electrical conductor 61 with an insulating cover 62 is shown in notch 56 of terminal flange 54, with the electrical connection completed and with insulation 62 substantially disposed within the channel. The same action occurs at flange 55.
  • FIGS. 9-41 and I3 illustrate another embodiment of the present invention.
  • Terminal element I47 is of elongated channel-shaped construction with a bottom wall 151 and side walls 152 and 153. At the outer end of the terminal element. a portion of side wall 152 is bent across the channel to afford a first terminal flange 154. A second terminal flange 155 is struck from the other side wall 153 and is bent inwardly to extend across the channel at a location spaced from the outer terminal flange 154.
  • Terminal flange 154 is provided with an upwardly opening notch 156 for receiving an insulation covered electrical conductor such as the conductor 161 with its insulation 162 (FIG. 11).
  • the upper portion of notch 156 includes the thin, downwardly converging notch walls 157A and 1578.
  • the thickness of walls l57 and 1578 in the upper portion of notch 156 is limited to the thickness of the sheet metal from which terminal element 147 is formed, usually of the order of 0.005 inch and forms thin flat cutting surfaces 170A and 1708 (FIG. 13) facing into the notch and extending across at least a major portion of the thickness of sheet metal providing walls 157A and 1578.
  • the upper portion of notch 156 affords a cutting section for shearing through the insulation 162 on conductor 161.
  • notch 156 The medial portion of notch 156-is bent away from the notch and is coined or swedged to afford gradually thickened edges constituting a transition section 158. Transition section 158 spreads the insulation on conductor 161 as the conductor is progressively inserted into notch 156.
  • the lower portion of notch 156 has smooth. thick edges affording a terminal section 159 having portions of multiple thickness fonning thickened edges and constituting a pressure jaw that engages the electrical conductor 61 in a smooth wiping friction contact that affords a good electrical connection between conductor 161 and terminal flange 154.
  • Tenninal flange 155 is essentially similar to flange 154, as best shown in FIGS. and 13. That is, the second terminal flange 155 is constructed with a notch for receiving an insulation-covered electrical conductor, the upper portion of the notch having thin, downwardly converging edges that afford a cutting section and that merge into a medial portion of the notch having gradually thickened edges.
  • the bottom portion of the notch in terminal 155, as in flange 154, has smooth, rounded, thickened edges that provide a terminal section constituting a pressure jaw for engaging the electrical conductor in good electrical contact.
  • the end portion of channel wall 153 adjacent terminal flange 154 is bent inwardly and shaped to afford a slot 164.
  • a part of channel wall 152 aligned with terminal flange 155 is deformed inwardly and pressed into a configuration that provides a vertically extending retainer slot 165.
  • the free end of flange 154 engages in slot 164 to brace the flange and prevent the flange from being bent out of position when completing an electrical connection to a conductor inserted into the flange.
  • the retaining slot 165 in channel wall 152 serves the same purpose, strenthening flange 155 mechanically and preventing deformation of the flange when an electrical conductor is inserted into terminal 147.
  • Terminal element 147 also includes a retainer tab 166 that is formed integrally with and that extends upwardly from the one side wall 152 of the channel. Retainer tab 166 remains in the illustrated position until a conductor has been inserted in terminal element 147 and electrical connection has been established. Once this has been done. tab 166 can be bent over to engage the outer surface of the electrical conductor and hold the insulated conductor in the terminal element 147.
  • notch 156 In the end view of FIG. 11, the side walls of notch 156. particularly in the terminal section 159 of the notch, are shown as diverging slightly. with the bottom of the notch terminating in a rounded lower wall 167.
  • the walls of the conductor-receiving notch I56 apply a limited clamping force to conductor 161. holding the conductor in the notch and in electrical contact with terminal flange 154.
  • notch 156 is fonned apart slightly as conductor 61 passes through the transition section 158 and into the terminal section 159 of the notch.
  • the overall width of tenninal element 147 is made only slightly smaller than the spacing between the two walls 168 and 169 defining this portion of the contact passage 42 in the molded dielectric mounting block 41 (FIG. 11).
  • the walls of the terminal flange notches be made divergent, in the terminal section, in the manner shown in FIG. 11.
  • the notch walls may be maintained parallel throughout the transition section and the terminal section. This is particularly true when other means such as the retaining tab 166, are provided for holding the electrical conductor in the terminal flanges.
  • the walls of the tenninal section may be made parallel to each other, as shown in terminal section 159A, illustrated in FIG. 12.
  • FIGS. 14, 15 and 16 illustrate a terminal element 247, constructed in accordance with another embodiment of the invention, and constituting an integral part of a sheet metal contact member 243.
  • the active contact element of member 243 may have the same construction as discussed above in connection with FIG. 5, and hence has not been illustrated.
  • Terminal element 247 is of U-shaped cross sectional configuration, forming an elongated channel having a bottom wall 251 and side walls 252 and 253. At the outer end of the channel, a firt terminal flange 254 is struck from an extension of side wall 252 and is bent across the channel to form a first terminal flange 254.
  • a second terminal flange 255 is struck from the other side wall 253 and is bent across the channel in spaced relation to flange 254.
  • Flange 254 includes an extension portion that is inserted into a retainer slot 264 in side wall 253, bracing the free end of flange 254 and thus afi'ordin g a rigid construction for the flange.
  • an extension at the end of flange 255 projects into a retaining slot 265 cut into channel wall 252, affording a retaining structure for the free end of flange 255 and thus prov iding a rigid mechanical construction.
  • flange 254 has a conductor-receiving notch 256 with thin, downwardly converging edges 257A and 2578 forming a cutting section for shearing through the insulation on an insulated conductor inserted into slot 256.
  • the cutting section of notch 256 merges with a transitional section 258 having gradually thickened edges that serves to spread the insulation when a conductor is inserted in notch 256.
  • notch 256 has thick rounded edges, terminating in a rounded lower wall, affording a pressure jaw for gripping the conductor and completing an electrical connection therewith when the insulated conductor is inserted in notch 256.
  • a corresponding construction is provided for an insulation-piercing electrical connection notch formed in terminal flange 255.
  • a retainer tab 266 may be incorporated in terminal element 247. After an electrical conductor has been inserted into terminal element 247, tab 266 can be bent over to a position in which it extends across the open side of the channel and locks the conductor into the channel.
  • the notches in terminal flanges 254 and 255 may have divergent walls in their transition and terminal sections, as in FIG. 11, or may have parallel walls in these sections, as in FIG. 12.
  • FIGS. 17, 18 and 18 illustrate yet another embodiment of the terminal element of the present invention, comprising a terminal element 347 formed integrally with and constituting a part of a one-piece sheetmetal contact member 343.
  • Terminal element 347 is again of U-shaped channel construction, including a bottom wall 351 and side walls 352 and 353.
  • a first terminal flange 354 is formed as a part of bottom wall 351 and is bent upwardly so that the flange extends across the outer end of the channel.
  • a second terminal flange 355 is struck from the bottom wall 351 of the channel and is bent upwardly so that the flange extends across a medial portion of the channel, spaced from flange 354.
  • flange 354 The ends of flange 354 are formed with individual projections that engage in two slots 364A and 364B in the channel walls 352 and 353, respectively. Similarly, flange 355 has an extension on each end, and these extensions are engaged in slots 365A and 365B in the side walls 352 and 353, respectively. As will be apparent from FIG. 19, this forms a strong, rigid construction for the terminal flanges, preventing excessive distortion when an electrical conductor is inserted in terminal element 347.
  • Terminal flange 354 includes a notch 356 affording an effective insulation-piercing terminal connection for an insulated wire inserted in the notch.
  • the configuration for notch 356 is similar to the notch constructions described above.
  • the connection notch 356 in flange 354 opens upwardly of the channel and has thin, downwardly converging edges 357A and 357B forming a cutting section for piercing and penetrating the insulation of a wire inserted in the notch.
  • the cutting section merges with a transition section 358 with gradually thickening edges that spread the insulation.
  • notch 356 has smooth, thickened walls, formed by swedging or coining the bent portions of the flange, that constitute an effective pressure jaw connector 359 that engages the conductor infirm sliding contact to afford a good electrical connection.
  • a similar construction is used for an insulation-piercing electrical connector notch formed in terminal flange 355.
  • Th construction of terminal element 347 may also be modified to utilize retaining notches for the terminal flanges that are formed by bending the side walls 352, 353 rather than being cut into the side walls. This modification is illustrated in FIG. 20, as applied to terminal flanges 354.
  • the end portion of side wall 352 is formed to afford a vertically extending slot 364C.
  • a similar vertical slot 364D is formed by bending an aligned portion of wall 353 in the same manner. This affords an alternate means for achieving the requisite mechanical rigidity and strength in the terminal flange construction to prevent excessive distortion when an electrical connection is made.
  • a retaining tab 366 may again be provided to lock a conductor in place once it is inserted in and electrically connected to the terminal flanges.
  • FIG. 21 considered in conjunction with FIGS. 2 and 3, illustrates a conductor retainer structure that is incorporated in the receptacle unit 40 as a part of the dielectric contact mount 41 as another feature of the invention.
  • mount 41 includes an integral molded barrier 401 extending across the outer ends of all of the contact passages 42.
  • Barrier or rear extension 401 includes a plurality of retainer grooves 402, a groove 402 aligned with and communicating with the end of each passage 42.
  • Each groove is arranged for receiving conductor blank 402 includes a downwardly converging entrance section 403 leading into a short, narrow retainer section 404 that in turn leads into a wide retainer section 405 slightly larger than the overall diameter of a conductor 61 and its insulator covering 62.
  • Barrier 401 may also have a series of slots 406 in the walls therein adjacent retainer grooves 402, facilitating flexing of the retainer groove walls.
  • terminal elements for contact members used in the receptacle unit 40 have been described in detail.
  • the contact members for plug unit 30 can be constructed in the same manner, using any of the configurations shown in FIGS. 6 through 20, and the plug unit contact mount 31 can be molded to afford the same kind of resilient retention means as shown in FIG. 21.
  • the terminal elements of the invention provide for rapid solderless connection of external conductors, minimizing or eliminating the scoring of conductors present in other insulation-piercingv connections and providing sliding friction contact at adequate pressure levels.
  • the terminal elements can be used, even in miniaturized connectors, at voltages of several hundred volts, and can carry several amperes of current.
  • the conductors are held firmly in the terminal elements, by their retainer tabs, by the retainer grooves in the contact mounts, by the terminal flange jaws, or by a combination thereof.
  • the contact members of the invention can be used in two-unit connectors, as described in conjunction with FIGS. 15; a single connector unit, incor- 1 1 porating the advantageous features of the invention, can also be used with a mating connector unit of different construction.
  • the receptacle unit 40 can be employed, with little or no modification, in making circuit connections to a mating connector comprising a part of a printed circuit board.
  • said terminal element including at least one terminal flange, formed by at least one flange element struck from one of said walls of said channel and bent to extend transversely of said channel, said flange extending completely across said channel and interlocked with at least one other wall of said channel,
  • said flange having an upwardly open notch for receiving an insulation-covered electrical conductor, the upper portion of said notch converging downwardly and having thin edges to afford a cutting section for shearing through the insulation on the conductor,
  • the medial portion of said notch having gradually thickened edges constituting a transition section for spreading the insulation on the conductor
  • a unitary contact member in which said terminal element includes two of said terminal flanges and inner and outer end portions, one terminal flange being located adjacent the outer end portion of said terminal element and the other terminal flange being located adjacent the inner end portion of said terminal element, each terminal flange having a conductor-receiving notch affording said cutting, transition, and terminal sections.
  • a unitary contact member according to claim 1 in which said terminal flange is struck from one of said side walls of said channel, extends completely across said channel, and projects into a retaining slot in the other side wall of said channel.
  • a unitary contact member according to claim 1, in which said terminal flange is struck from the bottom wall of said channel and projects into retaining slots in both side walls of said channel.
  • a unitary contact member formed from a single piece of thin, conductive sheet metal, comprising:
  • said terminal element including at least one terminal flange, formed by at least one flange element struck from one of said walls of said channel and bent to extend transversely of said channel,
  • said flange having an upwardly open notch for receivingan insulation-covered electrical conductor, the upper portion of said notch converging downwardly and having thin edges to afford a cutting 12 section for shearing through the insulation on the conductor, the medial portion of said notch having gradually thickened edges constituting a transition section for spreading the insulation on the conductor, and the lower portion of said notch having smooth,
  • each terminal flange notch being formed by flaps folded away from the center of the notch and coined or swedged into the recited shape at said transition section.
  • a unitary contact member in which the terminal section of said terminal flange notch has downwardly diverging walls which are spread during insertion of an electrical conductor and which apply a retaining force to hold the conductor in said notch.
  • a unitary contact member formed from a single piece of thin, conductive sheet metal, for an electrical connector of the kind comprising a first dielectric contact mount and a second dielectric contact mount having a plurality of contact mounting passages, the two contact mounts fitting together to align the inner ends of the contact passages in the first mount one-forone with the inner ends of the contact passages in the second mount, said contact member comprising:
  • an active contact element for positioning in the inner end of a given passage in one mount and for engaging a mating active contact element positioned in the inner end of the aligned passage in the other mount; and an integral terminal element, comprising an elongated channel of U-shaped cross-sectional configuration for positioning in the outer end of said given passage,
  • said terminal element including at least one integral terminal flange struck from one wall of said channel, said flange extending completely across said channel, and being interlocked with at least one other wall of said channel,
  • said flange having an upwardly opening notch for re-.
  • a medial portion of said notch having gradually thickened edges constituting a transition section for spreading the insulation on the conductor
  • a contact member for interconnection to an insulation-covered electrical conductor comprising an insulation cutting section with said thin flat
  • edges extending across at least a major portion of a thickness of said sheet metal, a lower portion having smooth, curved, thickened edges to afford a conductor engaging terminal section, and an insulation-spreading medial portion between said upper and lower portions with edges having a thickness greater than the thickness of said thin edges, said flange element including portions of multiple thicknesses of said sheet metal, said thin sheet metal being bent to form said thickened edges, and said thickened edges being resiliently spread during insertion of the electrical conductor and bearing against the conductor in pressure engagement.
  • a contact member according to claim 9 including an active element for connection to a circuit element and in which said terminal element includes a pair of said notches with said notches being longitudinally displaced and having upper ends forming an entrance to said lower portion, and an insulationspreading medial portion between said upper and lower portions with edges having a thickness greater than the thickness of said thin edges and extending to said upper ends of said lower portions,
  • a contact member according to claim 9 in which said terminal element includes walls forming a channel open to receive said conductor, with at least one of said walls integrally supporting said flange elements.
  • a contact member for interconnection to an insulation-covered metallic conductor comprising,
  • a longitudinally extending terminal element formed of thin, conductive sheet metal with at least one pair of opposed, transverse flange elements forming an upwardly open notch for receiving said conductor, said notch including an upper portion having thin edges converging downwardly to afford an insulation cutting section and a lower portion having smooth, curved, thickened edges to afford a conductor engaging terminal section, said flange elements including portions of multiple thicknesses of such sheet metal forming thickened edges, said thickened edges being downwardly diverging and being spread during insertion of said conductor to apply a retaining force to hold the conductor in said notch.
  • An electrical connector unit comprising: insulating means including a plurality of parallel longitudinally extending passages with inner and outer end portions each outer end portion having an upper longitudinal side open for receiving an insulation-covered electrical conductor, and
  • each of said terminal elements including at least one pair of opposed, transverse flange elements forming an upwardly opening notch for receiving said conductor, said notch including an upper portion having thin edges converging downwardly to afford an insulation cutting section and a lower portion having smooth, curved thickened edges to afford a conductor engaging terminal section, said flange elements being formed of thin, conductive sheet metal and including portions of multiple thicknesses of said sheet metal forming said thickened edges.
  • An electrical connector unit according to claim 13, in which said insulating means includes:
  • conductor retention means including a dielectric extension disposed across the outer end portions of said contact passages, said extension including a plurality of longitudinally elongated conductor support surfaces individually aligned with individual outer end portions and means for releasably retaining the individual conductors extending longitudinally away from the passages from upward movement in a direction out of the lower terminal sections of the notches.
  • An electrical connector unit in which said end extension includes a plurality of elongated retainer grooves, one for each contact passage, each retainer groove including a wide entrance section leading to a narrow retainer section which in turn leads to a substantially wider receptacle section large enough to accommodate an insulation-covered conductor.
  • each of said passages is of elongated U-shaped configuration with side walls and said terminal element includes an elongated channel with said flange elements and side and bottom walls, the side walls of the terminal element affording a close fit with the side walls of the outer end of the contact passage in which the contact member is mounted, so that the insulating means prevents excessive distortion of each terminal element when a conductor is inserted in the terminal flange notch thereof.
  • each terminal flange is struck from one wall of said terminal element channel and bent inwardly across said channel into interlocking relation with at least one additional wall thereof.
  • terminal elements include channelforming walls of said sheet metal with at least one of said walls being integral with at least one of said flange elements, and in close fit with said insulating means to prevent excessive distortion of said terminal flange elements when said conductor is inserted in the notch thereof.
  • An electrical connector unit in which said contact members include active elements disposed in said inner end portions, said terminal elements each include a pair of said notches, even including an insulation-spreading medial portion between said upper and lower portions.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Multi-Conductor Connections (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
US288998A 1972-09-14 1972-09-14 Electrical connector and insulation-piercing contact member Expired - Lifetime US3926498A (en)

Priority Applications (26)

Application Number Priority Date Filing Date Title
US288998A US3926498A (en) 1972-09-14 1972-09-14 Electrical connector and insulation-piercing contact member
IL43115A IL43115A (en) 1972-09-14 1973-08-30 Electrical connector with insulation-piercing contact member
ZA736012A ZA736012B (en) 1972-09-14 1973-08-31 Electrical connector and insulationpiercing contact member
IN2035/CAL/1973A IN140808B (de) 1972-09-14 1973-09-05
DE2344830A DE2344830C2 (de) 1972-09-14 1973-09-05 Elektrischer Verbinder
AU60113/73A AU491836B2 (en) 1973-09-07 Electrical connector and insulation-piercing contact member
US395746A US3867005A (en) 1972-09-14 1973-09-10 Insulation-piercing contact member and electrical connector
NLAANVRAGE7312421,A NL175682C (nl) 1972-09-14 1973-09-10 Langwerpig elektrisch verbindingsorgaan.
FR7332822A FR2200725B1 (de) 1972-09-14 1973-09-12
IT28869/73A IT998600B (it) 1972-09-14 1973-09-13 Connettore elettrico ed elemento di contatto che penetra nell isolante
SE7312458A SE395795B (sv) 1972-09-14 1973-09-13 Elektriskt kontaktorgan
CA181,021A CA1011421A (en) 1972-09-14 1973-09-13 Electrical connector and insulation-piercing contact member
HU73BU686A HU174265B (hu) 1972-09-14 1973-09-13 Ehlektricheskaja rozetka s kontaktnym chlenom, prorezyvajuhhim izoljaciju izolirovannogo provoda
SU731958751A SU602137A3 (ru) 1972-09-14 1973-09-13 Электрический контактный элемент
GB4312273A GB1443359A (en) 1972-09-14 1973-09-13 Electrical connector and insulation-piercing contact member
DD173462A DD105941A5 (de) 1972-09-14 1973-09-13
CH1314773A CH572285A5 (de) 1972-09-14 1973-09-13
PL1973165216A PL83803B1 (en) 1972-09-14 1973-09-14 Electrical connector and insulation-piercing contact member[us3926498a]
JP10336773A JPS576672B2 (de) 1972-09-14 1973-09-14
BE135666A BE804874A (fr) 1972-09-14 1973-09-14 Connecteurs et elements de contact electriques
BR7170/73A BR7307170D0 (pt) 1972-09-14 1973-09-14 Conector eletrico com menbro de contato perfurador de isolamento
DK505473AA DK141423B (da) 1972-09-14 1973-09-14 Elektrisk kontaktorgan til isolerede ledninger.
DK281675A DK281675A (de) 1972-09-14 1975-06-20
DK281575A DK281575A (de) 1972-09-14 1975-06-20
SE7609805A SE407131B (sv) 1972-09-14 1976-09-06 Elektriskt kontaktdon
US05/769,106 USRE31132E (en) 1972-09-14 1977-02-16 Electrical connector and insulation-piercing contact member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US288998A US3926498A (en) 1972-09-14 1972-09-14 Electrical connector and insulation-piercing contact member

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US64053575A Continuation 1975-12-15 1975-12-15
US05/769,106 Reissue USRE31132E (en) 1972-09-14 1977-02-16 Electrical connector and insulation-piercing contact member

Publications (1)

Publication Number Publication Date
US3926498A true US3926498A (en) 1975-12-16

Family

ID=23109566

Family Applications (1)

Application Number Title Priority Date Filing Date
US288998A Expired - Lifetime US3926498A (en) 1972-09-14 1972-09-14 Electrical connector and insulation-piercing contact member

Country Status (20)

Country Link
US (1) US3926498A (de)
JP (1) JPS576672B2 (de)
BE (1) BE804874A (de)
BR (1) BR7307170D0 (de)
CA (1) CA1011421A (de)
CH (1) CH572285A5 (de)
DD (1) DD105941A5 (de)
DE (1) DE2344830C2 (de)
DK (1) DK141423B (de)
FR (1) FR2200725B1 (de)
GB (1) GB1443359A (de)
HU (1) HU174265B (de)
IL (1) IL43115A (de)
IN (1) IN140808B (de)
IT (1) IT998600B (de)
NL (1) NL175682C (de)
PL (1) PL83803B1 (de)
SE (2) SE395795B (de)
SU (1) SU602137A3 (de)
ZA (1) ZA736012B (de)

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3963318A (en) * 1974-02-19 1976-06-15 American Telecommunications Contact and contact assembly
US3993391A (en) * 1975-09-19 1976-11-23 Itt Industries, Inc. Electrical contact for stripless cable connections
US4040702A (en) * 1975-06-23 1977-08-09 Trw Inc. Solderless termination system
US4050760A (en) * 1976-02-10 1977-09-27 Trw Inc. Solderless electrical contact
DE2721748A1 (de) * 1976-05-13 1977-12-01 Amp Inc Elektrische anschlussklemme
US4113338A (en) * 1977-01-03 1978-09-12 Bunker Ramo Corporation Insulation-piercing contact
FR2388421A1 (fr) * 1977-04-18 1978-11-17 Bunker Ramo Connecteur electrique comportant un element de raccordement a parois laterales mobiles
US4168876A (en) * 1978-02-27 1979-09-25 Western Electric Company, Inc. Electrical connector structures for facilitated solder attachment of flat conductors
US4274696A (en) * 1979-11-23 1981-06-23 Amp Incorporated Electrical connecting device for wiring systems
US4367909A (en) * 1979-04-11 1983-01-11 Amp Incorporated Ribbon cable connector
US4373769A (en) * 1975-08-20 1983-02-15 Allied Corporation Electrical connector including insulation-opening contact
JPS5894292U (ja) * 1981-12-19 1983-06-25 日本圧着端子製造株式会社 圧接形電気コネクタの接触子
EP0082697A2 (de) * 1981-12-19 1983-06-29 Nippon Acchakutanshi Seizo Kabushiki Kaisha Verbinder mit mehreren Kontakten
US4480385A (en) * 1979-10-11 1984-11-06 Allied Corporation Tool and method for terminating electrical conductors in contact members
US4575173A (en) * 1984-12-19 1986-03-11 General Motors Corporation Insulation displacement terminal
FR2581259A1 (fr) * 1985-04-30 1986-10-31 Amp France Connecteur electrique a fente de reception de fil
EP0210468A1 (de) * 1985-07-08 1987-02-04 Siemens Aktiengesellschaft Steckverbinder
US4699441A (en) * 1984-09-14 1987-10-13 Amp Incorporated Electrical connector for stranded wires
US4780092A (en) * 1986-09-30 1988-10-25 Amp Incorporated Electrical connector
US4948382A (en) * 1988-12-06 1990-08-14 Amp Incorporated Miniature insulation displacement electrical contact
US5071363A (en) * 1990-04-18 1991-12-10 Minnesota Mining And Manufacturing Company Miniature multiple conductor electrical connector
WO1992017917A1 (en) * 1991-04-01 1992-10-15 Kevin Hunter Waldock Electrical connector
US5176530A (en) * 1990-04-18 1993-01-05 Minnesota Mining And Manufacturing Company Miniature multiple conductor electrical connector
US5380218A (en) * 1992-09-11 1995-01-10 Yazaki Corporation Pressure-contact terminal structure
US5921804A (en) * 1997-04-03 1999-07-13 Yazaki Corporation Press-connecting terminal, and its housing
US6012942A (en) * 1995-12-29 2000-01-11 Volstorf; James R. Insulation displacement contact dimple and method of manufacture
US6165003A (en) * 1997-11-21 2000-12-26 Framatome Connectors International Electrical connector with variable thickness insulation-piercing contact member
US6434820B1 (en) 1994-09-30 2002-08-20 Fci Americas Technology, Inc. Method of manufacturing insulation displacement contact dimple
US20150372464A1 (en) * 2014-06-20 2015-12-24 Sumitomo Wiring Systems, Ltd. Water stopping structure for insulation-coated wire and wire harness
US10505290B2 (en) * 2018-02-28 2019-12-10 Japan Aviation Electronics Industry, Limited Terminal and harness

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2285000A1 (fr) * 1974-09-13 1976-04-09 Itt Produits Ind Element de contact electrique a dispositif de raccordement de cable sans denudage
FR2415374A1 (fr) * 1978-01-23 1979-08-17 Nozick Jacques Element de contact electrique a connexion auto-denudante
FR2423885A1 (fr) * 1978-04-17 1979-11-16 Bunker Ramo Dispositif de retenue radiale d'un fil dans un connecteur electrique
GB2168858B (en) * 1984-12-21 1988-10-05 Egerton A C Ltd Electrical contact or terminal
DE8615615U1 (de) * 1986-06-10 1986-07-31 Grote & Hartmann Gmbh & Co Kg, 5600 Wuppertal Kontakt mit Schneidklemmanschluß
JPH02195664A (ja) * 1989-01-25 1990-08-02 Yazaki Corp ターミナル
DE20001782U1 (de) * 2000-02-02 2001-06-13 Weidmüller Interface GmbH & Co, 32760 Detmold Schneidvorrichtung für Schirmkabel
DE20001912U1 (de) * 2000-02-03 2001-06-13 Weidmüller Interface GmbH & Co, 32760 Detmold Verbindungs- und/oder Verteilerelement für Schirmkabel

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2333266A (en) * 1941-06-30 1943-11-02 James B Miller Emergency wire connector
US2742549A (en) * 1953-06-30 1956-04-17 Rca Corp Connector for two wire transmission lines
US2938190A (en) * 1955-09-30 1960-05-24 Molex Products Co Electrical connector arrangements
US3002176A (en) * 1956-11-13 1961-09-26 Amphenol Borg Electronics Corp Multiple-contact electrical connector
US3167375A (en) * 1962-09-17 1965-01-26 Burndy Corp Multi-tap connector
US3227991A (en) * 1962-12-20 1966-01-04 Siemon Co Electrical connector
US3320354A (en) * 1965-02-15 1967-05-16 Amp Inc Insulation piercing electrical connection
US3388367A (en) * 1966-06-20 1968-06-11 Hughes Aircraft Co Electrical connector for either flat or round conductors
US3566338A (en) * 1968-02-02 1971-02-23 Amp Inc Electrical connector for an electron tube
US3609642A (en) * 1968-12-04 1971-09-28 Norden Alexander Wire terminals
US3611263A (en) * 1968-06-14 1971-10-05 Krone Kg Clip connector terminal for insulated conductors
US3718888A (en) * 1971-01-04 1973-02-27 Bell Telephone Labor Inc Universal connector for cable conductors
US3760335A (en) * 1971-05-27 1973-09-18 Amp Inc Pre-loaded electric connector
US3761868A (en) * 1969-08-22 1973-09-25 Krone Kg Clip connector terminal for one or more insulated conductors
US3778750A (en) * 1972-02-10 1973-12-11 Panduit Corp Wire termination and splicing system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB615737A (en) * 1945-03-14 1949-01-11 Jan Oortgijsen A connector or terminal for joining electric conductors
US3162501A (en) * 1960-01-21 1964-12-22 Amp Inc Electrical connector
DE1263130B (de) * 1963-09-30 1968-03-14 Siemens Ag Kontaktelement und Vorrichtung zum Bestuecken des Kontaktelementes fuer Fernmelde-, insbesondere Fernsprechanlagen
FR1523832A (fr) * 1966-06-01 1968-05-03 Amp Inc Connecteur électrique étanche à l'humidité

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2333266A (en) * 1941-06-30 1943-11-02 James B Miller Emergency wire connector
US2742549A (en) * 1953-06-30 1956-04-17 Rca Corp Connector for two wire transmission lines
US2938190A (en) * 1955-09-30 1960-05-24 Molex Products Co Electrical connector arrangements
US3002176A (en) * 1956-11-13 1961-09-26 Amphenol Borg Electronics Corp Multiple-contact electrical connector
US3167375A (en) * 1962-09-17 1965-01-26 Burndy Corp Multi-tap connector
US3227991A (en) * 1962-12-20 1966-01-04 Siemon Co Electrical connector
US3320354A (en) * 1965-02-15 1967-05-16 Amp Inc Insulation piercing electrical connection
US3388367A (en) * 1966-06-20 1968-06-11 Hughes Aircraft Co Electrical connector for either flat or round conductors
US3566338A (en) * 1968-02-02 1971-02-23 Amp Inc Electrical connector for an electron tube
US3611263A (en) * 1968-06-14 1971-10-05 Krone Kg Clip connector terminal for insulated conductors
US3609642A (en) * 1968-12-04 1971-09-28 Norden Alexander Wire terminals
US3761868A (en) * 1969-08-22 1973-09-25 Krone Kg Clip connector terminal for one or more insulated conductors
US3718888A (en) * 1971-01-04 1973-02-27 Bell Telephone Labor Inc Universal connector for cable conductors
US3760335A (en) * 1971-05-27 1973-09-18 Amp Inc Pre-loaded electric connector
US3778750A (en) * 1972-02-10 1973-12-11 Panduit Corp Wire termination and splicing system

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3963318A (en) * 1974-02-19 1976-06-15 American Telecommunications Contact and contact assembly
US4040702A (en) * 1975-06-23 1977-08-09 Trw Inc. Solderless termination system
US4373769A (en) * 1975-08-20 1983-02-15 Allied Corporation Electrical connector including insulation-opening contact
US3993391A (en) * 1975-09-19 1976-11-23 Itt Industries, Inc. Electrical contact for stripless cable connections
US4050760A (en) * 1976-02-10 1977-09-27 Trw Inc. Solderless electrical contact
DE2721748A1 (de) * 1976-05-13 1977-12-01 Amp Inc Elektrische anschlussklemme
US4113338A (en) * 1977-01-03 1978-09-12 Bunker Ramo Corporation Insulation-piercing contact
FR2388421A1 (fr) * 1977-04-18 1978-11-17 Bunker Ramo Connecteur electrique comportant un element de raccordement a parois laterales mobiles
US4168876A (en) * 1978-02-27 1979-09-25 Western Electric Company, Inc. Electrical connector structures for facilitated solder attachment of flat conductors
US4367909A (en) * 1979-04-11 1983-01-11 Amp Incorporated Ribbon cable connector
US4480385A (en) * 1979-10-11 1984-11-06 Allied Corporation Tool and method for terminating electrical conductors in contact members
US4274696A (en) * 1979-11-23 1981-06-23 Amp Incorporated Electrical connecting device for wiring systems
EP0082697A2 (de) * 1981-12-19 1983-06-29 Nippon Acchakutanshi Seizo Kabushiki Kaisha Verbinder mit mehreren Kontakten
JPS5894292U (ja) * 1981-12-19 1983-06-25 日本圧着端子製造株式会社 圧接形電気コネクタの接触子
EP0082697A3 (en) * 1981-12-19 1984-11-07 Nippon Acchakutanshi Seizo Kabushiki Kaisha Multi-contact connector
JPS6037814Y2 (ja) * 1981-12-19 1985-11-11 日本圧着端子製造株式会社 圧接形電気コネクタの接触子
US4699441A (en) * 1984-09-14 1987-10-13 Amp Incorporated Electrical connector for stranded wires
US4575173A (en) * 1984-12-19 1986-03-11 General Motors Corporation Insulation displacement terminal
WO1986006552A1 (en) * 1985-04-30 1986-11-06 Amp Incorporated Connector with wire receiving slot
FR2581259A1 (fr) * 1985-04-30 1986-10-31 Amp France Connecteur electrique a fente de reception de fil
EP0210468A1 (de) * 1985-07-08 1987-02-04 Siemens Aktiengesellschaft Steckverbinder
US4734054A (en) * 1985-07-08 1988-03-29 Siemens Aktiengesellschaft Plug connector
US4780092A (en) * 1986-09-30 1988-10-25 Amp Incorporated Electrical connector
US4948382A (en) * 1988-12-06 1990-08-14 Amp Incorporated Miniature insulation displacement electrical contact
US5071363A (en) * 1990-04-18 1991-12-10 Minnesota Mining And Manufacturing Company Miniature multiple conductor electrical connector
US5176530A (en) * 1990-04-18 1993-01-05 Minnesota Mining And Manufacturing Company Miniature multiple conductor electrical connector
WO1992017917A1 (en) * 1991-04-01 1992-10-15 Kevin Hunter Waldock Electrical connector
US5380218A (en) * 1992-09-11 1995-01-10 Yazaki Corporation Pressure-contact terminal structure
US6021568A (en) * 1994-09-30 2000-02-08 Volstorf; James R. Insulation displacement contact dimple
US6434820B1 (en) 1994-09-30 2002-08-20 Fci Americas Technology, Inc. Method of manufacturing insulation displacement contact dimple
US6012942A (en) * 1995-12-29 2000-01-11 Volstorf; James R. Insulation displacement contact dimple and method of manufacture
US5921804A (en) * 1997-04-03 1999-07-13 Yazaki Corporation Press-connecting terminal, and its housing
US6165003A (en) * 1997-11-21 2000-12-26 Framatome Connectors International Electrical connector with variable thickness insulation-piercing contact member
US20150372464A1 (en) * 2014-06-20 2015-12-24 Sumitomo Wiring Systems, Ltd. Water stopping structure for insulation-coated wire and wire harness
US9633760B2 (en) * 2014-06-20 2017-04-25 Sumitomo Wiring Systems, Ltd. Water stopping structure for insulation-coated wire and wire harness
US10505290B2 (en) * 2018-02-28 2019-12-10 Japan Aviation Electronics Industry, Limited Terminal and harness

Also Published As

Publication number Publication date
FR2200725A1 (de) 1974-04-19
AU6011373A (en) 1975-03-20
SU602137A3 (ru) 1978-04-05
SE395795B (sv) 1977-08-22
IN140808B (de) 1976-12-25
BE804874A (fr) 1974-03-14
DK141423C (de) 1980-09-15
DD105941A5 (de) 1974-05-12
CH572285A5 (de) 1976-01-30
IL43115A0 (en) 1973-11-28
DE2344830C2 (de) 1984-07-05
DK141423B (da) 1980-03-10
GB1443359A (en) 1976-07-21
ZA736012B (en) 1974-08-28
NL175682C (nl) 1984-12-03
DE2344830A1 (de) 1974-03-21
BR7307170D0 (pt) 1974-07-11
IT998600B (it) 1976-02-20
SE7609805L (sv) 1977-03-15
CA1011421A (en) 1977-05-31
IL43115A (en) 1976-05-31
SE407131B (sv) 1979-03-12
FR2200725B1 (de) 1977-05-20
HU174265B (hu) 1979-12-28
JPS49132590A (de) 1974-12-19
NL175682B (nl) 1984-07-02
PL83803B1 (en) 1976-02-28
NL7312421A (de) 1974-03-18
JPS576672B2 (de) 1982-02-05

Similar Documents

Publication Publication Date Title
US3926498A (en) Electrical connector and insulation-piercing contact member
US3867005A (en) Insulation-piercing contact member and electrical connector
US4743208A (en) Pin grid array electrical connector
US3208030A (en) Electrical connector
US5364288A (en) Electrical connecting device
US4068915A (en) Electrical connector
US3891293A (en) Flat cable terminating
US4342498A (en) Electrical socket
EP0232521A2 (de) Flachbaubuchse
US4118096A (en) Connecting means for flexible flat cable connector
US4125311A (en) Insulation-piercing contact member and connector
US3963316A (en) Electrical connector for a printed circuit board
KR870001865B1 (ko) 리브 케이지형 단자
EP0112144A1 (de) Elektrischer Verbinder für ein biegsames Bandkabel
US4184735A (en) Discrete connector
US4630879A (en) IDC latching terminal
US4597625A (en) Electrical connector
JPS5951491A (ja) リブケ
US3757277A (en) Electrical connector
US3275765A (en) Electrical connecting and switch device
US5133672A (en) Insulation displacement terminal
US4921439A (en) Center wire trap terminal and connector
US4717217A (en) Connector for mating modular plug with printed circuit board
US4548450A (en) Terminal pin securing arrangement
US3842391A (en) Electrical connector tab receptacle

Legal Events

Date Code Title Description
AS Assignment

Owner name: ALLIED CORPORATION COLUMBIA ROAD AND PARK AVENUE,

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:BUNKER RAMO CORPORATION A CORP. OF DE;REEL/FRAME:004149/0365

Effective date: 19820922