US2939100A - Plugboards for patchcord systems - Google Patents

Plugboards for patchcord systems Download PDF

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Publication number
US2939100A
US2939100A US544467A US54446755A US2939100A US 2939100 A US2939100 A US 2939100A US 544467 A US544467 A US 544467A US 54446755 A US54446755 A US 54446755A US 2939100 A US2939100 A US 2939100A
Authority
US
United States
Prior art keywords
board
contact
bushings
patchcord
grid
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
US544467A
Other languages
English (en)
Inventor
William S Watts
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.)
TE Connectivity Corp
Original Assignee
AMP Inc
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
Priority to BE552301D priority Critical patent/BE552301A/xx
Priority to NL211854D priority patent/NL211854A/xx
Priority to NL105576D priority patent/NL105576C/xx
Priority to US544467A priority patent/US2939100A/en
Application filed by AMP Inc filed Critical AMP Inc
Priority to FR1161808D priority patent/FR1161808A/fr
Priority to DEA25950A priority patent/DE1168521B/de
Priority to GB33527/56A priority patent/GB843813A/en
Priority to CH354496D priority patent/CH354496A/de
Priority to JP2798656A priority patent/JPS3410433B1/ja
Application granted granted Critical
Publication of US2939100A publication Critical patent/US2939100A/en
Anticipated expiration legal-status Critical
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
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6581—Shield structure
    • H01R13/6585—Shielding material individually surrounding or interposed between mutually spaced contacts
    • H01R13/6588—Shielding material individually surrounding or interposed between mutually spaced contacts with through openings for individual contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/76—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure with sockets, clips or analogous contacts and secured to apparatus or structure, e.g. to a wall
    • 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
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6581—Shield structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2107/00—Four or more poles

Definitions

  • This invention relates to patchcord systems utilized in connection with electrical accounting or computing machines or the like, and more particularly to the plug or contact boards of such systems.
  • the rows and columns of contact elements on oneV board typically constitute the terminals of electrical conductors leading from the sensing elements and the instrumentalities to be controlled in the machine, and on the other board provide rearrangeable interconnecting plugs or jacks through which the particular circuit connections on the first board may be made.
  • several hundred contact elements are located on each board in a minimum area with a minimum space between rows and columns.
  • current leakage can occur between contacts producing a more or less detri-l mental eiect on the operation of the machine according to its character.
  • information is generally represented by voltage pulses or levels which are compared for resolution to a xed reference level on a relative magnitude basis.
  • Any signicant leakage between contacts on the plugboard at theV control station introduces an error function in the handling of the information which should be avoided.
  • This current leakage, in contact boards as heretofore designed may appear either as volume leakage through the body of the insulating or plastic material, or as surface leakage between the contacts and becomes more signicant a factor should there be any aws or imperfections within the molded structure of the board or upon accumulation of any lm or foreign matter on the surface of the board.
  • Another object is to provide in a patchcord system an improved construction for shielded contact boards which eliminates the possibility of grounding energized contacts during rearrangement of the electrical connections afforded by the system.
  • Still another object is to provide in a patchcord system an improved shielded contact board which is simple in construction and facile to manufacture.
  • a further object is to provide for a patchcord sys-A tem a prefabricated contact board employing a minimumA is to be understood, however, that these embodiments' are not intended to be exhaustive nor limiting of theV invention but are given for purposes of illustration in order that others skilled in the art may fully understand the invention and the principles thereof and the manner of applying it in practical use so that they may modify it in various forms, each as may be best suited to the conditions of a particular use.
  • Figure l is a perspective view of one embodiment of the contact board with certain parts being broken away to illustrate some of the details of construction;
  • Figure 2 is a fragmentary perspective view illustrating the method of assembly of the parts comprising the contact board shown in Figure l;
  • Figure 3 is a sectional view taken along lines 3-3 of Figure l;
  • Figure 4 is a perspective view of an insert or bushing utilized in forming the contact board of Figure l;
  • FIG. 5 is a sectional side view of the insert or bush- .l lng of Figure 4 illustrating the cooperation therewith of' a plug or jack contact element employed within the patchcord system;
  • Figure 6 is a perspective view of another embodiment with certain parts being broken away to illustrate details of construction
  • Figure 7 is a sectional view taken along lines ⁇ 77 of Figure 6; f
  • Figure 8 is a fragmentary perspective view of another embodiment of the contact board with certain parts being broken away to illustrate details of construction
  • Figure 9 is a sectional view taken along lines 9-9 of Figure 8.
  • Figure 10 is a fragmentary perspective View showing Y one of the boards is xed in position inthe patchcord.'l system atthe control station of the machine or device.
  • the other board being detachably slidably mounted in a carrier frame'which is manipulated by the control mechanism of the patchcord system.
  • the principles of the,v applied in the construction of A present invention may be the patchcord system.
  • the contact board 2 typically is of rectangular configuration and has a plurality of rows and columns of apertures V4 extending therethrough for rigidly supporting in closely spaced relationship the contact elements, such' as the spring and plug contacts described in the respective applications, Serial No. 409,603, filed February l1, 1954, now Patent No. 2,882,508 issued April 14, 1959 to William S. Watts, and Serial No. 418,413, tiled March 24, 1954, now Patent No. 2,903,670, issued" September 8, 1959, to'Gilbert C. Weg.
  • apertures 4 Yis formed in' an in# dividual/ block or bushing 6 of insulating material, such as nylon, which is disposed in electrical isolation fromadjacent blocks within a pocket or section 8 of an' electrically conductive grid, generallyY designated atYV 10, of any suitable metallic material'.
  • grid 10 is composed of a plurality of elongated at strips 12 interconnected and arranged to present thin side faces 14 at the front and rear surfaces A and B of the board'.
  • the major width of strips 12 approximates the length and thus effectively shields the side faces of bushings 6 Whichdene the contact board thickness;
  • SurfacesV A and AB of board 2 is a composite of the end faces of insulating bushings 6 and strip side faces 14, the conductive surfaces ofY which preferably are inaccessible to engagement by the contact elements of the system as will be explained.
  • metallic grid and insulating blocks or bushings 6 may takeY avariety of forms in cooperating to provide the.
  • each bushing is provided at opposite ends with transverse lips or'flanges 18 and 20, iiange 18projecting from two side faces of the generally hexadhedral body of the bushing and flange 20 from the opposite side faces, Figure 4.
  • the widthY of stripsV 12 should then be equal to the length of bushings 6 between4 flanges 18 and 20 so that upon assembly of the parts, of l the' four stripsl forming each pocket 8, ange 18 will overlie the side face 14 of two adjacent strips on one face of the-board while flange 20 engagesv the side faces ofthe remaining 'pair of strips on the thereby locking both the grid joints and bushings in position.
  • a frame 22 provided with grooves 24 for receiving the extremities 26 of strips 12 serves to'maintain the" rigidity of the contact board structure, the frame being suitably held together as by bolts 2 8.
  • each bushing may be provided with adetent 32 extending inwardly'at' one end of aperturek 4 that cooperatesrwith an annular groove 34 of the plug to 70 secure the plugin positionas shown in V Figure 5.
  • rAs thus' constructed volume leakage through the board to the interpositon ofthe conductive strips 12.
  • flangesi'lS and 20 of onelbushing do not project so far as to abut the sideso adjacent'bshl opposite face of thekboarcl 4 ings, but vdet'nea series'o'f narrow grooves 36 leaving portions of the contiguous strips? 12 at side faces 14 exposed, thereby providing with respect to surface leakage a low resistance path of conductive metal surrounding each of the contact elements on both surfaces A and B of the board.
  • the space between adjacent bushings should not be so larger, however, as to permit engagement of the conductive strips by the contact elements of the system.
  • the Width of Ygrooves 36 should be less in dimensions than'nose 38 of the' contact plug thus preventing accidental grounding of the contact element during insertion thereof in the board.
  • all of the conductive strips 12 are in electrical contact and in contact With'the metallic frame 22 which may be grounded through the contact board carrying frame, shown in dotted lines 40 in Figure 3, of the Ypatchcord system.
  • carrying frame 40 V may tial. In general, however, it will be understood that with vappropriate connections frame 22, together with conductive strips 12, may be maintained at any desired potential thereby to provide a variable reference voltage level forthe contact elements.
  • the contact board may take either of the simplified forms shown respectively in Figures 6 and 7 or Figures 8 and 9.
  • the base 42 of contactV board 44 ⁇ is ofinsuto ground through carrier frame 52 for leakage currents between ,the contact elements4 on the board surfaces.
  • a conductive sheet 54 suitably disposedwithin the body of insulating base 56 provides a low resistance path to groundy through contact with the carrier frame at edges 58Vfor leakage Ycurrents between contacts through the body of the insulating material.
  • contactvplates 46 andV 54 may be rigidwrnembers directly Vmolded with thebasematerial, or if desired, may Ybe thin sheets of metal foil laminated Vto the base by bonding techniques conventional in the art.
  • Out- Wardly'p'rojectingY lugs 60 may be provided to assure in the molding operation a secure interlocking between the insulating base and conductive sheets.
  • a multiple-contact boardY for a patchcord system comprising" an electrically conductive grid, insulation means within' the interstices of said grid to form therewith the body ofsaid board, said insulation-means extendingpartially over the conductive surfaces presented* by said' grid on' at least onefa'ceof said board and havingj .apertures therein for' receiving' the contact elements of thesystem, and said apertures being. substantiallyk cen ⁇ teredwit'hin said linterstices respectively.
  • a multiple-contact board for a patchcord system comprising a plurality of conductive strips assembled in the form of a grid, a plurality of bushings of insulating material tting within the interstices of said grid to form therewith the body of said board, flange means on said bushings adapted to overhang the side edges of the respective contiguous portions of said strips for reducing the width of the conductive surface presented by said side edges on one face of the board, and apertures in said bushings for receiving the contact elements of the system.
  • a multiple-contact board for a patchcord system comprising a plurality of conductive strips assembled in the form of a grid, a plurality of bushings of insulating material fitting within the interstices of said grid to form therewith the body of said board, flange means on the ends of said bushings extending partially over the conductive surfaces presented by said grid on opposed faces of the board for locking the bushings within the grid, and apertures in said bushings for receiving the contact elements of the System.
  • a multiple-contact board for a patchcord system comprising a plurality of similar conductive strips, each having a series of spaced slots extending laterally from one side edge assembled in a lapped-joint grid arrangement, a plurality of bushings of insulating material tting within the interstices of said grid to form therewith the body of said board, apertures in said bushings for receiving the contact elements of the system, and means for securing said strips and bushings in assembled relationship.
  • a multiple-contact board for a patchcord system comprising a plurality of similar conductive strips, each having a series of regularly spaced slots extending laterally from one side edge substantially one-half the strip width assembled into a grid having halved lap joints at the crossover points, a plurality of bushings of insulating material fitting within the interstices of said grid to form therewith the body of said board, complementary ange means on one end of said bushings adapted to overhang the side edges of the respective contiguous portions of said strips for reducing the width of the conductive surface presented by said Side edges on one face of the board, ange means on the other end of said bushings for cooperating with said complementary ange means to lock said bushings within the grid and the grid joints in assembled relationship, apertures in said bushings for receiving the contact elements of the system, and a frame for receiving the end portions of said strips.
  • a multiple-contact board for a patchcord system comprising insulation means having a plurality of aper tures therein extending through said board for receiving.
  • a multiple contact board for a patchcord system comprising a plurality of conductive strips assembled in the form of a grid, a plurality of bushings of insulating material fitting within the interstices of said grid to form therewith the body of said board, said bushings having resiliently deformable means thereon adapted resiliently to engage said strips to eiect a tight fit of said bushings within said interstices, and apertures in said bushings for receiving the contact elements of the system.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
US544467A 1955-11-02 1955-11-02 Plugboards for patchcord systems Expired - Lifetime US2939100A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
BE552301D BE552301A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1955-11-02
NL211854D NL211854A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1955-11-02
NL105576D NL105576C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1955-11-02
US544467A US2939100A (en) 1955-11-02 1955-11-02 Plugboards for patchcord systems
FR1161808D FR1161808A (fr) 1955-11-02 1956-11-02 Tableaux à fiches pour systèmes à cordons
DEA25950A DE1168521B (de) 1955-11-02 1956-11-02 Auswechselbare Tafel aus Isolierstoff fuer Kontaktelemente von Steckerschnueren
GB33527/56A GB843813A (en) 1955-11-02 1956-11-02 Improvements in or relating to plugboards for patchcord systems
CH354496D CH354496A (de) 1955-11-02 1956-11-02 Mehrfach-Kontakttafel
JP2798656A JPS3410433B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1955-11-02 1956-11-02

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US544467A US2939100A (en) 1955-11-02 1955-11-02 Plugboards for patchcord systems

Publications (1)

Publication Number Publication Date
US2939100A true US2939100A (en) 1960-05-31

Family

ID=24172312

Family Applications (1)

Application Number Title Priority Date Filing Date
US544467A Expired - Lifetime US2939100A (en) 1955-11-02 1955-11-02 Plugboards for patchcord systems

Country Status (8)

Country Link
US (1) US2939100A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS3410433B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE (1) BE552301A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH354496A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE1168521B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR1161808A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB843813A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (2) NL105576C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3071844A (en) * 1959-08-05 1963-01-08 Malco Mfg Co Method of making a terminal
US3152849A (en) * 1961-01-16 1964-10-13 Sealectro Corp Electric socket contacts and electriccircuit selectors using such contacts
US3166372A (en) * 1961-09-29 1965-01-19 Malco Mfg Company Inc Method and apparatus for connector orientation
US3226493A (en) * 1963-10-02 1965-12-28 Automatic Elect Lab Push button control unit
US3231843A (en) * 1961-08-03 1966-01-25 Burndy Corp Grounding connector
US3430182A (en) * 1967-04-27 1969-02-25 Nasa Electrical feed-through connection for printed circuit boards and printed cable
US4501461A (en) * 1983-12-27 1985-02-26 International Telephone And Telegraph Corporation Zero insertion force socket
US4611867A (en) * 1985-07-08 1986-09-16 Japan Aviation Electronics Industry Limited Coaxial multicore receptacle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2006436A (en) * 1931-02-04 1935-07-02 William Saal Electric current subdividing connecting device
US2133254A (en) * 1937-02-18 1938-10-11 Forbes Lithograph Mfg Co Display stand
US2714195A (en) * 1951-09-19 1955-07-26 John W Beatty Quick connect-disconnect electrical connectors

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE749655C (de) * 1937-12-25 1944-12-09 Verteilungstafel, die aus mehreren Plattenelementen baukastenartig zusammengesetzt sind
US2315420A (en) * 1940-04-25 1943-03-30 Autocall Company Diagram board
DE878966C (de) * 1943-04-23 1953-06-08 Lorenz C Ag Kreuzungskupplung fuer Kreuzschienenverteileranlagen
US2409484A (en) * 1944-09-16 1946-10-15 Western Electric Co Supporting apparatus
US2608626A (en) * 1949-05-18 1952-08-26 Donald P Morgan Circuit closing panel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2006436A (en) * 1931-02-04 1935-07-02 William Saal Electric current subdividing connecting device
US2133254A (en) * 1937-02-18 1938-10-11 Forbes Lithograph Mfg Co Display stand
US2714195A (en) * 1951-09-19 1955-07-26 John W Beatty Quick connect-disconnect electrical connectors

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3071844A (en) * 1959-08-05 1963-01-08 Malco Mfg Co Method of making a terminal
US3152849A (en) * 1961-01-16 1964-10-13 Sealectro Corp Electric socket contacts and electriccircuit selectors using such contacts
US3231843A (en) * 1961-08-03 1966-01-25 Burndy Corp Grounding connector
US3166372A (en) * 1961-09-29 1965-01-19 Malco Mfg Company Inc Method and apparatus for connector orientation
US3226493A (en) * 1963-10-02 1965-12-28 Automatic Elect Lab Push button control unit
US3430182A (en) * 1967-04-27 1969-02-25 Nasa Electrical feed-through connection for printed circuit boards and printed cable
US4501461A (en) * 1983-12-27 1985-02-26 International Telephone And Telegraph Corporation Zero insertion force socket
US4611867A (en) * 1985-07-08 1986-09-16 Japan Aviation Electronics Industry Limited Coaxial multicore receptacle

Also Published As

Publication number Publication date
CH354496A (de) 1961-05-31
JPS3410433B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1959-11-30
NL211854A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR1161808A (fr) 1958-09-04
DE1168521B (de) 1964-04-23
NL105576C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE552301A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB843813A (en) 1960-08-10

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