US2882508A - Contact assembly for plugboards - Google Patents

Contact assembly for plugboards Download PDF

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Publication number
US2882508A
US2882508A US409603A US40960354A US2882508A US 2882508 A US2882508 A US 2882508A US 409603 A US409603 A US 409603A US 40960354 A US40960354 A US 40960354A US 2882508 A US2882508 A US 2882508A
Authority
US
United States
Prior art keywords
plugboard
contact
assembly
fixed
spring portion
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
US409603A
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 BE535612D priority Critical patent/BE535612A/xx
Priority to NL194383D priority patent/NL194383A/xx
Priority to NL103237D priority patent/NL103237C/xx
Priority to US409603A priority patent/US2882508A/en
Application filed by AMP Inc filed Critical AMP Inc
Priority to FR1122054D priority patent/FR1122054A/fr
Priority to GB3858/55A priority patent/GB796333A/en
Priority to DEA22058A priority patent/DE1057194B/de
Priority to CH333323D priority patent/CH333323A/de
Application granted granted Critical
Publication of US2882508A publication Critical patent/US2882508A/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
    • H01R13/02—Contact members
    • H01R13/26—Pin or blade contacts for sliding co-operation on one side only
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/38—Plug-and-socket 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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances

Definitions

  • This invention in general relates to plugboard assemblies for electrical accounting machines, computers, and the like and more particularly to an electrical contact assembly which provides circuit connections between fixed and movable plugboards of a plugboard assembly.
  • the invention will be set forth in the present specification in association with plugboards and related parts such as are found in electrical accounting machines.
  • a control panel cooperates with the fixed panel to provide a circuit connection between the electrical contacts and associated sensing elements and the instrumentalities desired to be operated according to some predetermined arrangement.
  • the control panel is provided with removable plugs or pin contacts whereby a pre-set arrangement may be made with the panel and contacts being removable as a unit from the plugboard assembly, a separate plugboard panel being furnished for each arrangement desired.
  • control panel is carried by a frame which may be pivotably connected to the fixed panel, pivotal movement of the frame bringing the panels into operative relationship.
  • the panels, or plugboards first be brought to a parallel position with the two sets of contacts being in an overlapping equally spaced relationship. Subsequent movement of the movable panel along the fixed panel causes the contacts to engage simultaneously and effects even distribution of contact pressure.
  • a mechanism for producing the movement of the panels, as described, is disclosed in US. Patent No. 2,594,737, issued April 29, 1952, to James M. Cunningham.
  • the present invention is here described in a form suitable for incorporation in the structure disclosed in said Cunningham patent but other forms will readily occur to others skilled in this and related arts.
  • Another object of the present invention is to provide a contact assembly for plugboards wherein the relative movement of the contact carriers is amplified as translated into wiping action between the contacts.
  • a further object of the present invention is to provide in a plugboard assembly a spring contact which is simple to insert and to lock in position in the associated contact carrier.
  • Still another object of the present invention is to provide in a plugboard assembly a spring contact of a durable single piece construction.
  • Figure 1 is a fragmentary side view of a plugboard assembly with portions cut away to illustrate the relationship of the contact element of a contact assembly mounted thereon;
  • Figure 2 is a front view in elevation of the plugboard assembly with certain parts being broken away as indicated in Figure 5;
  • Figures 3a and 3b are side views of a spring contact for the fixed plugboard of the plugboard assembly
  • Figures 4a and 4b are diagrams of the contact assembly as the contacts move into engagement.
  • Figure 5 is a detailed fragmentary view illustrating the contact assembly mounted in the plugboard assembly.
  • FIG. l there is diagrammatically illustrated in Figure l a plugboard assembly including movable plugboard 1 which is shown loosely pivoted at 2 to a fixed plugboard 3 adapted to be rigidly afiixed to an electrical accounting construction as by bolts 4.
  • a mechanism (not shown) of a type well known in the art is provided to swing movable plugboard 1 about pivot 2 from the open position as shown to a position parallel to a fixed plugboard 3, and then to lift or move plugboard 1 along the fixed plugboard by a predetermined amount.
  • Such means form no part of the present invention and hence are omitted for purposes of clarity, an example of a suitable mechanism being shown and described in the I. M. Cunningham patent referred to above.
  • Fixed plugboard 3 is provided, as shown in Figure 2, with a plurality of apertures 6 arranged in rows and columns which are adapted to receive a like number of contact members 7, some of which are coupled to the sensing elements of the machine while others are coupled to the various instrumentalities that perform the operative functions thereof.
  • movable plugboard 1 is provided with a removable panel 8 having a plurality of apertures 9, corresponding to apertures 6, in which cooperating contact members 10 are adapted to be inserted for the purpose of contacting members 7, as shown in Figures 4 and 5, of the fixed plugboard when the plugboard assembly is in the closed position.
  • Intersecting apertures 6 on the face of the fixed plugboard are longitudinal grooves 12, as shown in Figures 2 and 5, for a purpose to be explained hereinafter.
  • Member 10 is preferably in the form of a plug or jack and includes a barrel 13 which is detachably held to plugboard 1 in aperture 9 by any suitable means known in the art.
  • a friction grip between barrel 13 and the sidewalls of aperture 9 will sufiice, however, spring retention such as disclosed in U. S. Patent No. 2,056,361, issued October 6, 193 6, to A. W. Mills may be utilized if desired.
  • a ferrule 14 integral with barrel 13 provides a means for attaching connecting lead 11 to member 10.
  • the contact portion of member 10 is preferably in the form of a pin 15 which cooperates with the corresponding contact member 7, in a manner to be later described, to provide the desired electrical connection therebetween.
  • FIGS 3a and 3b illustrate, in plan and side views respectively, the form of contact member 7 such as is aifixed to the fixed plugboard.
  • contact memher 7 comprises a barrel portion 16 which is adapted to be received by aperture 6 of the fixed plugboard.
  • Integral with barrel 16 is a leaf spring portion 17 having shoulders 18 that seat in the bottom of grooves 12 when the contact member is inserted in the plugboard to prevent barrel 16 from turning in aperture 6 when spring portion 17 is placed under tension.
  • a contact surface, or tab 19, for member 7 is formed by twisting a part of the length thereof through approximately 45 relative to the length and plane of spring portion 17.
  • a tapered tab portion 20, integral with barrel portion 16, is of such a length so as to project from the under surface of the fixed plugboard.
  • a tapered socket, generally designated at 21 in Figure 5, connects the tab 20 to the machine leads.
  • Other types of terminals, however, may be utilized.
  • barrel 16 may terminate in a slotted tab through which the machine leads may be threaded and wrapped.
  • the angle between the planes of tab 19 and spring portion 17 has been described as being approximately 45. This angle effects a path of wiping contact between the elements which is satisfactory for most purposes. It may be desirable, however, in view of other design considerations, for example to adjust the contact pressure between the elements, to increase or decrease slightly the magnitude of this angle. Since a reduction from an angle of 45 decreases the path of wiping contact, and hence decreases the self-cleansing action of the assembly, it may be preferable that such design considerations be resolved by other solutions, as by changing the flexibility of the material from which the spring contact is formed.
  • a contact assembly for a plugboard assembly which includes a fixed plugboard provided with a plural ity of apertures and longitudinal grooves intersecting said apertures, a contact member for said plugboard, said contact member comprising a barrel portion adapted to be received by one of said apertures for mounting said member on said plugboard, a leaf spring portion integrally extending from said barrel portion having shoulders adapted to be received in said grooves for aligning said member on said plugboard, and a tab portion integral with said spring portion and set at an acute angle relative to the plane and about the length of said spring portion to provide an electrical contact surface on said member, the longitudinal axes of said portions being substantially parallel.
  • a contact member for said plugboard comprising a barrel portion adapted to be received by one of said apertures, said barrel portion including terminal means for cooperating with a lead brought to the back side of the plugboard and having a deformable extension adapted to project from the reverse side of said plugboard whereby to provide a retaining means for said member, a leaf spring portion integral with said barrel portion having shoulder portions adapted to be received in said grooves, and a tab portion integral with said spring portion and twisted through an angle of substantially 45 relative to the plane and about the length of said spring portion to provide an electrical contact surface on said member, the longitudinal axes of said portions being substantially parallel.
  • an electrical contact member for the fixed plugboard comprising an elongated leaf spring portion having shoulders adapted to be received in the grooves for maintaining the plane of said spring from rotation, a barrel portion at one end of said spring portion adapted to be received in an aperture and to protrude from the other face of the plugboard, the protruding part adapted to be deformed for locking said member on the plugboard, and a tab portion at the other end of said spring portion being twisted through an angle of substantially 45 relative to the plane and about the length of the spring so as to provide a contact surface engageable by a mating contact pin adapted to be disposed substantially parallel to said member and moved in a plane parallel to the plane of said spring portion for flexing said spring portion and wiping said contact surface upon interconnection of the assembly.
  • an electrical contact member for the fixed plugboard comprising an elongated leaf spring portion, a barrel portion at one end of said spring portion adapted to be received in an aperture and having means to lock said barrel portion within the aperture, means on said member adapted to cooperate with mating means on the plugboard for positively maintaining the plane of said spring from rotation, and a contact portion at the other end of said spring portion and set at an acute angle relative to the plane and about the lengh of said spring so as to provide a contact surface engageable by a mating contact pin adapted to be disposed substantially parallel to said member and moved in a plane parallel to the plane of said spring portion for flexing said spring and wiping said contact surface upon interconnection of the assembly.
  • a contact member for the fixed board for map erative engagement-by a contact pin carried by and projecting from the movable board toward the fixed board, said contact member including an elongated leaf spring portion, means at one end of said spring portion for mounting said member on the fixed board with the longitudinal axis thereof directed toward the movable board and the plane of said spring portion parallel to the direcdisposition in the path of, and sliding contact by, the con tact pin.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
US409603A 1954-02-11 1954-02-11 Contact assembly for plugboards Expired - Lifetime US2882508A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
BE535612D BE535612A (de) 1954-02-11
NL194383D NL194383A (de) 1954-02-11
NL103237D NL103237C (de) 1954-02-11
US409603A US2882508A (en) 1954-02-11 1954-02-11 Contact assembly for plugboards
FR1122054D FR1122054A (fr) 1954-02-11 1955-02-04 Assemblage de contacts pour tablettes
GB3858/55A GB796333A (en) 1954-02-11 1955-02-09 Improvements in or relating to electrical contact assemblies and plugboards and electrical calculating machines incorporating same
DEA22058A DE1057194B (de) 1954-02-11 1955-02-10 Kontaktglied fuer Steckertafeln oder dergleichen
CH333323D CH333323A (de) 1954-02-11 1955-02-11 An einer Trägereinrichtung befestigte elektrische Kontaktvorrichtung und deren Verwendung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US409603A US2882508A (en) 1954-02-11 1954-02-11 Contact assembly for plugboards

Publications (1)

Publication Number Publication Date
US2882508A true US2882508A (en) 1959-04-14

Family

ID=23621213

Family Applications (1)

Application Number Title Priority Date Filing Date
US409603A Expired - Lifetime US2882508A (en) 1954-02-11 1954-02-11 Contact assembly for plugboards

Country Status (7)

Country Link
US (1) US2882508A (de)
BE (1) BE535612A (de)
CH (1) CH333323A (de)
DE (1) DE1057194B (de)
FR (1) FR1122054A (de)
GB (1) GB796333A (de)
NL (2) NL194383A (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3134633A (en) * 1962-03-14 1964-05-26 Amp Inc Plug contactor
US3217284A (en) * 1963-08-12 1965-11-09 Amp Inc Miniature contact assembly for plugboards
US3315212A (en) * 1964-07-20 1967-04-18 Sperry Rand Corp Connector assembly
US3348187A (en) * 1964-08-25 1967-10-17 Amp Inc Multiple switch
US3601763A (en) * 1969-02-28 1971-08-24 Ibm Pin-socket connection devices with torsioned pin contacts
US4484164A (en) * 1983-03-28 1984-11-20 Siemens-Allis, Inc. Braidless movable contact with wiping action
US5019465A (en) * 1989-03-06 1991-05-28 Dynabook Technologies Corporation Locking arrangement for a battery pack
US5688231A (en) * 1994-09-30 1997-11-18 Becton Dickinson And Company Iontophoresis assembly including cleanable electrical contacts

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3072238A (en) * 1960-10-24 1963-01-08 Smith Corona Marchant Inc Program unit
DE1665709C2 (de) * 1966-08-01 1974-01-03 Siemens Ag, 1000 Berlin U. 8000 Muenchen Vielpolige lösbare elektrische Kontaktvorrichtung für Schaltungsträger
US3977748A (en) * 1974-04-23 1976-08-31 Molex Incorporated Zero insertion force connector assembly
DE3536142A1 (de) * 1985-10-10 1987-04-16 Opel Adam Ag Mehrpolige, als steckverbindung ausgebildete elektrische verbindung zwischen zwei gelenkig miteinander verbundenen bauteilen, insbesondere zwischen karosserie und seitentuer von kraftfahrzeugen
CN113922128A (zh) * 2021-10-29 2022-01-11 西安微电子技术研究所 一种微型电连接器的结构及制作方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1369221A (en) * 1917-12-20 1921-02-22 Hiram D Currier Connection-terminal
US2120396A (en) * 1936-06-04 1938-06-14 Bell Telephone Labor Inc Electrical contact member
US2417369A (en) * 1944-03-29 1947-03-11 Ibm Multiple circuit connector of the plug type
US2594748A (en) * 1949-10-29 1952-04-29 Ibm Control panel for accounting machines

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2056361A (en) * 1933-08-29 1936-10-06 Ibm Plugboard for tabulating machines
US2111118A (en) * 1935-03-09 1938-03-15 Ibm Plugboard

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1369221A (en) * 1917-12-20 1921-02-22 Hiram D Currier Connection-terminal
US2120396A (en) * 1936-06-04 1938-06-14 Bell Telephone Labor Inc Electrical contact member
US2417369A (en) * 1944-03-29 1947-03-11 Ibm Multiple circuit connector of the plug type
US2594748A (en) * 1949-10-29 1952-04-29 Ibm Control panel for accounting machines

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3134633A (en) * 1962-03-14 1964-05-26 Amp Inc Plug contactor
US3217284A (en) * 1963-08-12 1965-11-09 Amp Inc Miniature contact assembly for plugboards
US3315212A (en) * 1964-07-20 1967-04-18 Sperry Rand Corp Connector assembly
US3348187A (en) * 1964-08-25 1967-10-17 Amp Inc Multiple switch
US3601763A (en) * 1969-02-28 1971-08-24 Ibm Pin-socket connection devices with torsioned pin contacts
US4484164A (en) * 1983-03-28 1984-11-20 Siemens-Allis, Inc. Braidless movable contact with wiping action
US5019465A (en) * 1989-03-06 1991-05-28 Dynabook Technologies Corporation Locking arrangement for a battery pack
US5688231A (en) * 1994-09-30 1997-11-18 Becton Dickinson And Company Iontophoresis assembly including cleanable electrical contacts

Also Published As

Publication number Publication date
FR1122054A (fr) 1956-08-31
CH333323A (de) 1958-10-15
DE1057194B (de) 1959-05-14
NL103237C (de)
DE1057194C2 (de) 1959-11-05
BE535612A (de)
GB796333A (en) 1958-06-11
NL194383A (de)

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