US3820056A - Method and apparatus for connecting multi-conductor cables - Google Patents

Method and apparatus for connecting multi-conductor cables Download PDF

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Publication number
US3820056A
US3820056A US00248595A US24859572A US3820056A US 3820056 A US3820056 A US 3820056A US 00248595 A US00248595 A US 00248595A US 24859572 A US24859572 A US 24859572A US 3820056 A US3820056 A US 3820056A
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United States
Prior art keywords
cable
connector
connectors
enclosure
panels
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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
US00248595A
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English (en)
Inventor
G Ayer
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.)
Bunker Ramo Corp
Amphenol Interconnect Products Corp
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Bunker Ramo Corp
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Filing date
Publication date
Application filed by Bunker Ramo Corp filed Critical Bunker Ramo Corp
Priority to US00248595A priority Critical patent/US3820056A/en
Priority to AU54187/73A priority patent/AU485130B2/en
Priority to IN816/CAL/73A priority patent/IN140092B/en
Priority to CA169,906A priority patent/CA998463A/en
Priority to JP48048316A priority patent/JPS4941881A/ja
Priority to US05/448,476 priority patent/US3958850A/en
Application granted granted Critical
Publication of US3820056A publication Critical patent/US3820056A/en
Priority to CA249,122A priority patent/CA1008166A/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
Assigned to CANADIAN IMPERIAL BANK OF COMMERCE, NEW YORK AGENCY, AS AGENT reassignment CANADIAN IMPERIAL BANK OF COMMERCE, NEW YORK AGENCY, AS AGENT SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: AMPHENOL CORPORATION
Assigned to AMPHENOL CORPORATION, A CORP. OF DE reassignment AMPHENOL CORPORATION, A CORP. OF DE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: ALLIED CORPORATION, A CORP. OF NY
Assigned to AMPHENOL CORPORATION reassignment AMPHENOL CORPORATION SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CANADIAN IMPERIAL BANK OF COMMERCE, AS AGENT
Assigned to MORGAN GUARANTY TRUST COMPANY, NEW YORK reassignment MORGAN GUARANTY TRUST COMPANY, NEW YORK SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: AMPHENOL INTERCONNECT PRODUCTS CORPORATION, A CORP. OF DE
Assigned to AMPHENOL INTERCONNECT PRODUCTS CORPORATION, A DE. CORP. reassignment AMPHENOL INTERCONNECT PRODUCTS CORPORATION, A DE. CORP. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: AMPHENOL CORPORATION
Anticipated expiration legal-status Critical
Assigned to AMPHENOL INTERCONNECT PRODUCTS CORPORATION, A DE CORP. reassignment AMPHENOL INTERCONNECT PRODUCTS CORPORATION, A DE CORP. TO RELEASE BY SECURED PART OF A SECURITY AGREEMENT RECORDED AT REEL 4939 FRAME 0758. Assignors: MORGAN GUARANTY TRUST COMPANY OF NEW YORK
Assigned to AMPHENOL CORPORATION A CORP. OF DELAWARE reassignment AMPHENOL CORPORATION A CORP. OF DELAWARE RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: CANADIAN IMPERIAL BANK OF COMMERCE
Expired - Lifetime legal-status Critical Current

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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
    • H01R13/46—Bases; Cases
    • H01R13/516—Means for holding or embracing insulating body, e.g. casing, hoods
    • H01R13/518—Means for holding or embracing insulating body, e.g. casing, hoods for holding or embracing several coupling parts, e.g. frames

Definitions

  • Apparatus for connecting multiconductor cables is M aaw Eb u m gdm .mmm V n aw mm pe b m o w m m m nkmn v a m fwm wn gfrl. .m di mmh n w mm h dmw @011 i 0 VP m w Dl tt 2 7 9 1L1 3 k n mu.
  • BACKGROUND There are numerous applications where a single large electrical cable is to be connected with a number of smaller cables.
  • One such application is in a telephone office or large office building where the stub cables leading from a telephone switchboard are to be connected to a riser cable which is itself connected to cables bringing service to subscribers.
  • the riser cable may have from 300 to 2,700 twisted pairs of wires, or in other words up to 5,400 wires.
  • Present practice is to random splice by hand the stubs to the riser cable, an
  • test boarding involves a ringing-out operation to identify the terminal at the switchboard end of the riser cable to which a given conductor at the subscriber-line end of the cable is connected.
  • connection assembly should be as compact as possible.
  • the connecting device should provide a reliable, long-life connection which cannot work free or be otherwise spuriously broken, but which may be easily disconnected if desired and on which modifications may be performed easily without affecting the entire assembly.
  • An assembly which consists of at least three panels.
  • one of the panels is a base plate and the other two panels have first connector elements mounted in them.
  • the plates are joined to form an enclosure, preferably of a generally delta shape, for a first multi-conductor cable.
  • Each of the first connector elements has a selected'group of the first cable conductors physically and electrically connected to it.
  • There are a plurality of second connector elements which are adapted to mate with the first connector elements, with each of the second connector elements being physically and electrically connected to a selected group of conductors of one or more second cables.
  • a means is also provided which is operative when a second connector element is mated in a corresponding first connector element preventing the elements from being spuriously separated, but permitting the elements to be separated if desired. Additional panels may be modularly added to the assembly to form an enclosure for cables having a greater number of twisted pairs.
  • FIG. 1 is a partially exploded prospective view of a connector assembly of a preferred embodiment of the invention.
  • FIG. 2 is a partially cut-away rear view of the assembly shown in FIG. 1.
  • FIG. 3 is a top view of a portion of one connector mounting panel for the assembly shown in FIG. 1.
  • FIG. 4 is a diagramatic top view of assemblies illustrating the arrangement of connector elements and bunch assignments for various different sizes of cable.
  • FIG. 5 is a section view along the line 5-5 of FIG. 1 illustrating the various stages in the operation of securing the connector elements together for a first embodiment of the invention.
  • FIG. 6 is a view along the line 5-5 of FIG. I illustrating the various steps in the operation of securing the connector elements together for a second embodiment of the invention.
  • FIG. 7 is a sectional view along the line 77 of FIG. 6.
  • FIG. 8 is a flow diagram of the steps involved in assembling and utilizing the apparatus shown in FIG. 1.
  • FIG. 9 is a perspective view showing the connector assembly of FIG. 1 fully assembled.
  • This assembly is formed with three extrusions or rails 20, 22, and 24 to which are secured a base plate or plates 26 and a suitable number of connector plates 28 for the size cable being terminated.
  • the enclosure is sealed at the end opposite the cable by end plate 30 and at the cable end by plate 32 having a cable receiving opening 34 formed therein.
  • a clamp assembly 36 is mounted on cable 10 and secured to end plate 32 with bolts and nuts 78.
  • Each plate 28 has a plurality of ribbon-type connector elements 38 mounted in it.
  • Amphenol 57 series connectors are utilized, with each connector having 25 pairs of ribbon contacts. Since, for the preferred embodiment, there are eight connector elements 38 mounted in each plate 28, each plate may accommodate up to 200 twisted pairs of conductors.
  • the conductors of a multi-conductor cable are grouped into bunches which are color coded for identification and are arranged in a predetermined order. Each bunch normally contains 100 twisted pairs of wire. It is therefore apparent that, as shown in FIG. 1, four connector elements 38 are required for for each conductor bunch.
  • FIG. 4 illustrates the connector. elements to which each conductor block of the cable is connected for cables of various typical sizes. From FIG.
  • the enclosure of this invention is totally modular, permitting a greater or lesser number of connector elements to be utilized as required for different cable sizes. This is accomplished by changing the lengths of rails 20, 22 and 24, either changing the length of or adding additional plates 26, and by adding additional plates 28.
  • each connector block cable 16 also has 100 twisted pairs of conduetorsEach of these cables is terminated by four connector elements 42 which are ofa type to mate with connector elements 38.
  • these are Amphenol 57 series blue ribbon-type connectors.
  • a holddown clip 46 shown in FIGS. 1 and 5 is secured adjacent each connector element 38 byv one of the screws 48 which is utilized to hold the connector in place. As will be described in greater detail later, holddown 46 is utilized to secure a mating connector element pair (38, 42) against spurious disconnection.
  • FIGS. 6 and 7 illustrate an alternative mechanism for preventing the spurious separation of the connector elements.
  • This mechanism includes a U-shaped clip 50 having anchor projections 52 which is secured near the rear end of each connector element 38, and a spring clip 54 which is secured near the tip ofeach connector element. The manner in which these clips are utilized to secure a pair of mating connectors against spurious separation will be described shortly.
  • holddown clips 46 are initially secured to enclosure 18. While this may be I done in the field, it is preferably done as part of the. connector assembly operation (step 74).
  • the first step in the field connection of a cable 16 to a cable 10 is to connect each connector element 42 to the holddown clip. 46 of the corresponding mating connector element 38 with a strain screw 124.
  • the appearance of the assembly after this step in the operation has been completed is illustrated by the left-most pair of connector elements in FIG. 5; connector element 42 is pivoted into engagement. with connector element 38.
  • the appearance of the connector pair after this step in the operation has been completed is shown by the middle connector in FIG. 5.
  • the final step'in the operation involves the turning of a screw 132 which is inserted through an opening in the case of connector element 42 either at this time or during the assembly operation to secure connector 42 to standoff element 76. These steps are repeated for each connector pair. To disconnect the cables. the operations performed are reversed.
  • FIGS. 6 and 7 illustrate an alternative holddown mechanism which permits connections to be effected more rapidly than with the embodiment of the invention shown in FIG. 5.
  • clips 50 and 54 are attached adjacent each connector element 38. Screw 48 and a screw in place of stand-off 76 may be used for attaching clips 50 and 54 respectively.
  • the connector elements When a pair of connector elements 38 and 42 are to be mated with this embodiment of the invention, the connector elements are first positioned as shown for the left-hand connector pair in FIG. 6 and pressure is then applied to the top of connector element 42 to force the connector elements together. As this is done, the sides of the connector casing act on cam projections 52 to open clip 50. When the connectors are fully mated, projections 52 drop into openings 138 in the side of the connector casing to lock the back portion of the connector elements together. At the same time that this is occurring, projecting tip 140 of the connector element casing bears against cam surface 142 of clip 54 pushing the clip back to permit tip 140 to pass in front of it.
  • FIG. 7 and the right hand portion of FIG. 6 show the elements as they appear when fully seated.
  • a clip of suitable size having the'shape of clip 50 may be substituted for clip 54 if desired.
  • clip 54 is pushed back and tip 140 raised slightly so as to no longer be engaged by the clip.
  • a suitable tool is then forced between the sides of clip 50 and the sides of the connector element, wedging the sides of the clip out to remove projections 52 from holes 138.
  • connector element 42 may be pulled out of engagement with connector element 38.
  • the present randomsplice technique requires approximately hours of skilled technician time to connect a single riser cable, plus the time required for the ringing-out operation which may be another 24 hours.
  • the corresponding operations utilizing the method and apparatus of this invention, may be completed in from 4 to 8 hours by a somewhat less skilled operator. With the embodiment of the invention shown in FIGS. 6 and 7, the time required may be reduced even further.
  • the ringing-out operation is performed at the factory, the 24 hours required for this operation is also eliminated further reducing the field time and labor required.
  • a neat, easy to operate upon, and modularly' expandable assembly is thus provided. It has been found that the size of the package is roughly half of that required with the random splicing operation.
  • An assembly for physically and electrically connecting a first multi-conductor cable to a plurality of second multi-conductor cables comprising three side plates, means joining said side plates to form a deltashaped enclosure having a longitudinal axis, and an end plate on said enclosure having cable-holding means fo entry of said first cable, wherein two of said side plates have stepped connector mounting panels mounted thereto whose surfaces are inclined with reference to the longitudinal axis of the enclosure, said panels each having a plurality of parallel slots therein, and a plurality of elongated connectors mounted in said slots with their long dimensions extending generally in the same direction as the longitudinal axis of the enclosure, said connectors being electrically joined to the conductors of said first cable.
  • a cable junction wherein a main cable is terminated in a junction box having a plurality of stepped panels each carrying at least one group of elongated 50 contact socket connectors mounted parallel in groups of four and having their contacts electrically connected to said main cable, and a plurality of branch cables each having its conductors at their ends grouped in a four-element fork, each element of the fork being terminated with an elongated SO-contact plug connector, each plug connector having a cover from which conductors extend in a direction parallel to the long dimension of the plug connector, the stepped relation of said panels causing the cables from plug connectors mating with socket connectors on one step to extend above the plug connectors mated with socket connectors on an adjacent step.

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  • Coupling Device And Connection With Printed Circuit (AREA)
  • Cable Accessories (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
US00248595A 1972-04-28 1972-04-28 Method and apparatus for connecting multi-conductor cables Expired - Lifetime US3820056A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US00248595A US3820056A (en) 1972-04-28 1972-04-28 Method and apparatus for connecting multi-conductor cables
AU54187/73A AU485130B2 (en) 1972-04-28 1973-04-06 Method and apparatus for connecting multi-conductor cables
IN816/CAL/73A IN140092B (enrdf_load_html_response) 1972-04-28 1973-04-06
CA169,906A CA998463A (en) 1972-04-28 1973-04-17 Method and apparatus for connecting multi-conductor cables
JP48048316A JPS4941881A (enrdf_load_html_response) 1972-04-28 1973-04-26
US05/448,476 US3958850A (en) 1972-04-28 1974-03-06 Method and apparatus for connecting multi-conductor cables
CA249,122A CA1008166A (en) 1972-04-28 1976-03-30 Cable junction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00248595A US3820056A (en) 1972-04-28 1972-04-28 Method and apparatus for connecting multi-conductor cables

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US05/448,476 Division US3958850A (en) 1972-04-28 1974-03-06 Method and apparatus for connecting multi-conductor cables

Publications (1)

Publication Number Publication Date
US3820056A true US3820056A (en) 1974-06-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
US00248595A Expired - Lifetime US3820056A (en) 1972-04-28 1972-04-28 Method and apparatus for connecting multi-conductor cables

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US (1) US3820056A (enrdf_load_html_response)
JP (1) JPS4941881A (enrdf_load_html_response)
CA (1) CA998463A (enrdf_load_html_response)
IN (1) IN140092B (enrdf_load_html_response)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3986764A (en) * 1975-03-31 1976-10-19 Gte Automatic Electric Laboratories Incorporated Panel for supporting a pair of elongated mating connectors and selectively locking them together
US4131330A (en) * 1976-03-31 1978-12-26 Bunker Ramo Corporation Mounting device for electrical connectors
FR2393445A1 (fr) * 1976-09-13 1978-12-29 Bunker Ramo Dispositif d'interconnexion modulaire a connexions interchangeables
US4227238A (en) * 1977-09-28 1980-10-07 Nippon Gakki Seizo Kabushiki Kaisha Mounting and electrical connection means for operation unit for electric devices
US4227764A (en) * 1978-11-07 1980-10-14 Bunker Ramo Corporation Connector and adapter system
US4420200A (en) * 1980-08-16 1983-12-13 Krone Gmbh Surge-protected cable joint
US4545632A (en) * 1982-11-26 1985-10-08 Robert Bosch Gmbh Modular electrical distribution connection set

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3986764A (en) * 1975-03-31 1976-10-19 Gte Automatic Electric Laboratories Incorporated Panel for supporting a pair of elongated mating connectors and selectively locking them together
US4131330A (en) * 1976-03-31 1978-12-26 Bunker Ramo Corporation Mounting device for electrical connectors
FR2393445A1 (fr) * 1976-09-13 1978-12-29 Bunker Ramo Dispositif d'interconnexion modulaire a connexions interchangeables
US4227238A (en) * 1977-09-28 1980-10-07 Nippon Gakki Seizo Kabushiki Kaisha Mounting and electrical connection means for operation unit for electric devices
US4227764A (en) * 1978-11-07 1980-10-14 Bunker Ramo Corporation Connector and adapter system
US4420200A (en) * 1980-08-16 1983-12-13 Krone Gmbh Surge-protected cable joint
US4545632A (en) * 1982-11-26 1985-10-08 Robert Bosch Gmbh Modular electrical distribution connection set

Also Published As

Publication number Publication date
IN140092B (enrdf_load_html_response) 1976-09-11
AU5418773A (en) 1974-10-10
CA998463A (en) 1976-10-12
JPS4941881A (enrdf_load_html_response) 1974-04-19

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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

AS Assignment

Owner name: CANADIAN IMPERIAL BANK OF COMMERCE, NEW YORK AGENC

Free format text: SECURITY INTEREST;ASSIGNOR:AMPHENOL CORPORATION;REEL/FRAME:004879/0030

Effective date: 19870515

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Owner name: AMPHENOL CORPORATION, LISLE, ILLINOIS A CORP. OF D

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ALLIED CORPORATION, A CORP. OF NY;REEL/FRAME:004844/0850

Effective date: 19870602

Owner name: AMPHENOL CORPORATION, A CORP. OF DE, ILLINOIS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ALLIED CORPORATION, A CORP. OF NY;REEL/FRAME:004844/0850

Effective date: 19870602

AS Assignment

Owner name: AMPHENOL CORPORATION, 358 HALL AVENUE, WALLINGFORD

Free format text: SECURITY INTEREST;ASSIGNOR:CANADIAN IMPERIAL BANK OF COMMERCE, AS AGENT;REEL/FRAME:004912/0120

Effective date: 19880623

Owner name: AMPHENOL INTERCONNECT PRODUCTS CORPORATION, A DE.

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:AMPHENOL CORPORATION;REEL/FRAME:004925/0469

Effective date: 19880624

Owner name: MORGAN GUARANTY TRUST COMPANY, NEW YORK

Free format text: SECURITY INTEREST;ASSIGNOR:AMPHENOL INTERCONNECT PRODUCTS CORPORATION, A CORP. OF DE;REEL/FRAME:004939/0758

Effective date: 19880615

Owner name: AMPHENOL CORPORATION,CONNECTICUT

Free format text: SECURITY INTEREST;ASSIGNOR:CANADIAN IMPERIAL BANK OF COMMERCE, AS AGENT;REEL/FRAME:004912/0120

Effective date: 19880623

AS Assignment

Owner name: AMPHENOL INTERCONNECT PRODUCTS CORPORATION, A DE C

Free format text: TO RELEASE BY SECURED PART OF A SECURITY AGREEMENT RECORDED AT REEL 4939 FRAME 0758.;ASSIGNOR:MORGAN GUARANTY TRUST COMPANY OF NEW YORK;REEL/FRAME:006034/0352

Effective date: 19911118

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Owner name: AMPHENOL CORPORATION A CORP. OF DELAWARE

Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:CANADIAN IMPERIAL BANK OF COMMERCE;REEL/FRAME:006147/0887

Effective date: 19911114