US3431545A - Connector with bus bar - Google Patents

Connector with bus bar Download PDF

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Publication number
US3431545A
US3431545A US639333A US3431545DA US3431545A US 3431545 A US3431545 A US 3431545A US 639333 A US639333 A US 639333A US 3431545D A US3431545D A US 3431545DA US 3431545 A US3431545 A US 3431545A
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United States
Prior art keywords
connector
contact
bus bar
housing
spaced
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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
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US639333A
Inventor
Edward Kirby
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United Carr Inc
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United Carr Inc
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/7088—Arrangements for power supply
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S439/00—Electrical connectors
    • Y10S439/907—Contact having three contact surfaces, including diverse surface

Definitions

  • This invention relates generally to contacts, and more specifically, relates to a unitary contact having a unique means of engagement with the housing and flexible arm engagement with a bus bar.
  • the contact consists of a tail, barbed for retention in a housing and having spaced right-angular portions which connect to spaced, parallel engaging arms; the arms extending away from the barb means upwardly toward a pair of spaced spring fingers connected to the tail at a point spaced from the right-angular portions.
  • the fingers at their free ends, are arced and have locking shoulders thereon; and join to the tail by a base portion which forms, with the tail, a T-shape.
  • An object of the present invention is to provide a contact having shoulder means engageable with the housing whereby the upper portion of the contact was in movable relation with the housing but was fixed in relation to certain predetermined portions of the housing.
  • a further object of the present invention is to provide a contact which had means of engaging a bus bar which comprises at least one pair of flexible arms and which engage the busbar through the contact fingers.
  • FIG. 1 is a side elevation of the contact.
  • FIG. 2 is a front elevation of the contact shown in FIGURE 1.
  • FIG. 3 is a top plan view of the contact shown in FIGURE 1.
  • FIG. 4 is a top plan view of the contact shown in FIGURE 1 engaged with a housing (broken off).
  • FIG. 5 is a section taken on line 55 of FIGURE 4.
  • FIG. 6 is a section of the housing showing the contact in full and engaged.
  • FIG. 7 is a section taken on line 77 of FIGURE 6.
  • a one-piece contact 10 combining a wrap post tail 12, which has a series of barbs 14, extending from each of its side edges for a purpose to be described hereinafter.
  • a connector portion 16 extends at right angles from each side edge of the wrap post tail 12, a predetermined distance from the barbs 14.
  • a pair of spaced flexible arms 18 extend from the upper edge of each of the connector portions 16, in a direction away from the barbs 14.
  • the spring arms 18 3,431,545 Patented Mar. 4, 1969 are arranged to provide two pairs of arms in spaced opposed relation to each other as shown in FIGURE 4.
  • the free terminal ends of the spring arms 18 are flared outwardly to provide a lead in for a busbar 20.
  • a base portion 22 forms a T with the tail 12, has a pair of spring fingers 24 extending from it and is spaced slightly above the upper edges of the connector portions 16.
  • the spring fingers 24 are in spaced relation to each other and extend toward the same plane as the spring arms 18.
  • Each of the spring fingers 24 is biased or canted inwardly toward the extended planes of the spring arms 18, in substantially parallel relation to each other and provided with a free locking end 26.
  • Each of the free locking ends 26 is bent, at a bight portion 28, to provide an angle with the remaining portion of the spring fingers 24, and is extended in the opposite direction from that of the connector portion 16.
  • the free locking end 26 is provided at its edge with an outside shoulder 30, located in close proximity to the bight portion 28, and is provided on its opposite edge with an inside shoulder 32, which is formed farther away from the bight portion 28 than the outside shoulder 30.
  • the outside shoulder 30 is formed to extend beyond the side edge of the bight portion 28, for a purpose to be described hereinafter.
  • the terminal edge of the locking end 26 is ohamfered back toward the bight portion 28, to provide a narrow almost pointed termination 27, as shown in FIGURES 3 and 4.
  • the housing 33 formed of an insulating material of an edge connector for example, comprises a pair of sidewalls 34, and 34a, formed in a spaced parallel relation to each other and extending upwardly in right-angle relationship to a base 36.
  • An extension portion 38 extends from the sidewall 34, toward a card slot 40.
  • the card slot 40 extends along the horizontal center line of the housing 33.
  • the extension portion 38 includes a first contact locking barrier portion 42, which blocks part of the opening of a cavity 44 from the card slot 40, and is formed in right-angle relation to the remaining part of the extension portion 38, and in parallel relation to the sidewalls 34, 34a.
  • a second contact locking barrier portion 46 extends from the same sidewall as the extension portion 38, in spaced parallel relation to part of the extension portion 38, separating the first rectangular cavity 44 from the bus-bar slot 48, which is formed down through each of the sidewalls 34, 3411, at right angles to the card slot 40, as shown in FIGURE 4.
  • the first rectangular cavity 44 is thus bounded by a portion of the sidewall 34, the extension portion 38, with its first contact locking barrier portion 42, and the second contact locking barrier portion 46.
  • the sidewalls 34, 34a are connected by a base 36.
  • a cavity 52 is formed by parallel wall extensions 56, which are in spaced parallel relation to each other and extend from the sidewall 34a into the card slot 40, as shown in FIGURES 4 and 5.
  • Each of the wall extensions 56 extends on a plane to provide an upper surface which is on the same level as the sidewall 34a.
  • the wall extension 56 runs into the card slot 40, at which point a lower level 62 is formed at the floor of the card slot 40.
  • An aperture 58 is formed through the base 36, which has a tubular portion 60 extending therefrom whose core provides a continuation of the aperture 58.
  • the tail 12 is passed down through the aperture 58 and through the tubular portion 60, until the connector portions 16 lie in superimposed spaced relation to the base 36, with the barbs 14 engaged in the inner surface of the tubular portion 60, locking the contacts in place, and the spring arms 18 lie within the cavity 52, with their free ends below the plane of the lower level 62, of the wall extensions 56.
  • Each of the locking ends 26 has its outside shoulder 30 butted against the first contact locking barrier portion 42, and a portion of its inside surface butted against the second contact locking barrier portion 46, thereby holding it in a position which allows the locking end 26, to move outwardly toward the sidewall 34, while preventing it from moving sideways into the bus-bar slot 48, or backward into the card slot 40.
  • the canted portion of the spring fingers 24, and the bight portion 28, extend into the card slot 40.
  • the bus bar 20 is used as a method of electrically connecting a series of edge connectors together which are in spaced parallel relation to each other with their bus bar slots in alignment so that a single bus bar may be used to connect a number of edge connectors simultaneously.
  • An electrical contact for use with a housing comprising a tail, a pair of connector portions extending from the tail, at least one flexible arm extending from each connector portion and a base portion attached to the tail a predetermined distance from the connector portion, a pair of spring fingers extending from the base portion in spaced relation to each other, each of the spring fingers having a locking portion which has shoulders adapted to secure the locking portion to the housing.

Description

March 4, 1969 E. KIRBY 3,431,545
CONNECTOR WITH BUS BAR Filed May 18, 1967 Sheet 1 of 2 1 39.1. E6 30 E6 26 Z g 28 I we 22%?! March 4, 1969 E. KIRBY 3,431,545
CONNECTOR WITH BUS BAR .;.ed1ay 1a. 1257 Sheet 3 of s Fig. .5. 38 E6 48 86,3
Edward K1759, & e.
VWfl'fi a.
3,431,545 CONNECTOR WITH BUS BAR Edward Kirby, Los Angeles, Calif., assignor, by mesne assignments, to United-Carr Incorporated, Boston,
Mass, a corporation of Delaware Filed May 18, 1967, Ser. No. 639,333
US. Cl. 339258 Int. Cl. H01r 13/24 5 Claims ABSTRACT OF THE DISCLOSURE Background the invention In the past, extremely complex methods were utilized to bus a series of edge connectors together. One method was to solder, wire wrap or weld a connection from connector to connector. Jack means could also be utilized, and in some cases extremely complex bus bar engagements were made.
This invention relates generally to contacts, and more specifically, relates to a unitary contact having a unique means of engagement with the housing and flexible arm engagement with a bus bar.
The contact consists of a tail, barbed for retention in a housing and having spaced right-angular portions which connect to spaced, parallel engaging arms; the arms extending away from the barb means upwardly toward a pair of spaced spring fingers connected to the tail at a point spaced from the right-angular portions. The fingers, at their free ends, are arced and have locking shoulders thereon; and join to the tail by a base portion which forms, with the tail, a T-shape.
An object of the present invention is to provide a contact having shoulder means engageable with the housing whereby the upper portion of the contact was in movable relation with the housing but was fixed in relation to certain predetermined portions of the housing.
A further object of the present invention is to provide a contact which had means of engaging a bus bar which comprises at least one pair of flexible arms and which engage the busbar through the contact fingers.
Description of the drawing FIG. 1 is a side elevation of the contact.
FIG. 2 is a front elevation of the contact shown in FIGURE 1.
FIG. 3 is a top plan view of the contact shown in FIGURE 1.
FIG. 4 is a top plan view of the contact shown in FIGURE 1 engaged with a housing (broken off).
FIG. 5 is a section taken on line 55 of FIGURE 4.
FIG. 6 is a section of the housing showing the contact in full and engaged.
FIG. 7 is a section taken on line 77 of FIGURE 6.
In the drawing there is shown a one-piece contact 10, combining a wrap post tail 12, which has a series of barbs 14, extending from each of its side edges for a purpose to be described hereinafter. A connector portion 16 extends at right angles from each side edge of the wrap post tail 12, a predetermined distance from the barbs 14. A pair of spaced flexible arms 18 extend from the upper edge of each of the connector portions 16, in a direction away from the barbs 14. The spring arms 18 3,431,545 Patented Mar. 4, 1969 are arranged to provide two pairs of arms in spaced opposed relation to each other as shown in FIGURE 4. The free terminal ends of the spring arms 18 are flared outwardly to provide a lead in for a busbar 20. A base portion 22 forms a T with the tail 12, has a pair of spring fingers 24 extending from it and is spaced slightly above the upper edges of the connector portions 16. The spring fingers 24 are in spaced relation to each other and extend toward the same plane as the spring arms 18. Each of the spring fingers 24 is biased or canted inwardly toward the extended planes of the spring arms 18, in substantially parallel relation to each other and provided with a free locking end 26. Each of the free locking ends 26 is bent, at a bight portion 28, to provide an angle with the remaining portion of the spring fingers 24, and is extended in the opposite direction from that of the connector portion 16. The free locking end 26 is provided at its edge with an outside shoulder 30, located in close proximity to the bight portion 28, and is provided on its opposite edge with an inside shoulder 32, which is formed farther away from the bight portion 28 than the outside shoulder 30. The outside shoulder 30 is formed to extend beyond the side edge of the bight portion 28, for a purpose to be described hereinafter. The terminal edge of the locking end 26 is ohamfered back toward the bight portion 28, to provide a narrow almost pointed termination 27, as shown in FIGURES 3 and 4.
The housing 33, formed of an insulating material of an edge connector for example, comprises a pair of sidewalls 34, and 34a, formed in a spaced parallel relation to each other and extending upwardly in right-angle relationship to a base 36. An extension portion 38 extends from the sidewall 34, toward a card slot 40. The card slot 40 extends along the horizontal center line of the housing 33. The extension portion 38 includes a first contact locking barrier portion 42, which blocks part of the opening of a cavity 44 from the card slot 40, and is formed in right-angle relation to the remaining part of the extension portion 38, and in parallel relation to the sidewalls 34, 34a. A second contact locking barrier portion 46 extends from the same sidewall as the extension portion 38, in spaced parallel relation to part of the extension portion 38, separating the first rectangular cavity 44 from the bus-bar slot 48, which is formed down through each of the sidewalls 34, 3411, at right angles to the card slot 40, as shown in FIGURE 4. The first rectangular cavity 44 is thus bounded by a portion of the sidewall 34, the extension portion 38, with its first contact locking barrier portion 42, and the second contact locking barrier portion 46. The sidewalls 34, 34a are connected by a base 36. A cavity 52, somewhat rectangular in configuration, is formed by parallel wall extensions 56, which are in spaced parallel relation to each other and extend from the sidewall 34a into the card slot 40, as shown in FIGURES 4 and 5. Each of the wall extensions 56 extends on a plane to provide an upper surface which is on the same level as the sidewall 34a. The wall extension 56 runs into the card slot 40, at which point a lower level 62 is formed at the floor of the card slot 40. An aperture 58 is formed through the base 36, which has a tubular portion 60 extending therefrom whose core provides a continuation of the aperture 58.
To engage the contact 10 in the housing 33, the tail 12 is passed down through the aperture 58 and through the tubular portion 60, until the connector portions 16 lie in superimposed spaced relation to the base 36, with the barbs 14 engaged in the inner surface of the tubular portion 60, locking the contacts in place, and the spring arms 18 lie within the cavity 52, with their free ends below the plane of the lower level 62, of the wall extensions 56. Each of the locking ends 26 has its outside shoulder 30 butted against the first contact locking barrier portion 42, and a portion of its inside surface butted against the second contact locking barrier portion 46, thereby holding it in a position which allows the locking end 26, to move outwardly toward the sidewall 34, while preventing it from moving sideways into the bus-bar slot 48, or backward into the card slot 40. The canted portion of the spring fingers 24, and the bight portion 28, extend into the card slot 40.
The bus bar 20 is used as a method of electrically connecting a series of edge connectors together which are in spaced parallel relation to each other with their bus bar slots in alignment so that a single bus bar may be used to connect a number of edge connectors simultaneously. Once the bus bar 20 has been engaged in the bus bar slot and between the arms 18, as well as between the spaced spring fingers 24, a card (not shown) can be engaged within the card slot 40, and into physical and electrical engagement with the spring fingers 24.
With reference to the foregoing description it is to be understood that what has been disclosed herein represents several embodiments of the invention and is to be construed as illustrative rather than restrictive in nature and that the invention is best described by the following claims.
I claim:
1 An electrical contact for use with a housing comprising a tail, a pair of connector portions extending from the tail, at least one flexible arm extending from each connector portion and a base portion attached to the tail a predetermined distance from the connector portion, a pair of spring fingers extending from the base portion in spaced relation to each other, each of the spring fingers having a locking portion which has shoulders adapted to secure the locking portion to the housing.
2. An electrical contact for use with a housing as set forth in claim 1 wherein the shoulders of the locking portion comprise an outside shoulder and an inside shoulder.
3. An electrical contact for use with a housing as set forth in claim 2 wherein the tail has a barbed means of engaging the housing, the connector portions are in right angle relation to the tail and in spaced, parallel relation to each other and the flexible arms are in spaced parallel relation to each other.
4. An electrical contact for use with a housing as set forth in claim 3 wherein the base portion forms a T with the tail, and is in spaced relation with the connector portions, and each of the spring fingers has an arced portion in close proximity to the locking portion.
5. An electrical contact for use with a housing as set forth in claim 4 wherein the flexible arms extend from an upper side edge of the connector portion in a direction away from the barbed means.
References Cited UNITED STATES PATENTS 2,673,967 3/1954 Hedgecock 33922 3,192,498 6/1965 Ruehlernann 339-258 X 3,245,031 4/1966 Barney et al. 339258 3,323,099 5/1967 Spera 339-221 X RICHARD E. MOORE, Primary Examiner.
US. Cl. X.R. 339-17, 217
US639333A 1967-05-18 1967-05-18 Connector with bus bar Expired - Lifetime US3431545A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US63933367A 1967-05-18 1967-05-18
DE19681810513 DE1810513B2 (en) 1967-05-18 1968-11-22 Electric contact member for printed circuit board mounting - has base part carrying wiring extension piece, connection parts and spring fingers to receive bus bar
FR175769 1968-11-28

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US3431545A true US3431545A (en) 1969-03-04

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FR (1) FR1593769A (en)
GB (1) GB1162620A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3725843A (en) * 1971-07-06 1973-04-03 Teradyne Inc Bussing construction for printed circuit connectors
FR2430166A1 (en) * 1978-06-29 1980-01-25 Bunker Ramo ARRANGEMENT OF ELECTRICAL CONTACTS FOR PRINTED CARD CONNECTORS
US4192565A (en) * 1976-10-28 1980-03-11 Richard Gianni Multi-level socket for an integrated circuit
US4221458A (en) * 1978-09-08 1980-09-09 Amp Incorporated Electrical connector receptacle
DE3002515A1 (en) * 1980-01-24 1981-07-30 Hans Dipl.-Ing. 8300 Landshut Rilling Spring contact strip for plug connector system - has individual contact springs provided with additional connector members of specified shape in orthogonal and lateral directions
US4292736A (en) * 1978-09-08 1981-10-06 Amp Incorporated Method for making jack type receptacles
US4451109A (en) * 1981-02-10 1984-05-29 Tokai Electric Wire Company Limited Connector terminal
EP0251557A1 (en) * 1986-06-30 1988-01-07 The Whitaker Corporation Bus bar connector assembly
US6860766B2 (en) * 2002-03-08 2005-03-01 Cinch Connectors, Inc. Electrical connector
US20100019784A1 (en) * 1999-11-04 2010-01-28 Yi Wang Analyte Sensor with Insertion Monitor, and Methods

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES257552Y (en) * 1979-04-05 1982-05-01 PLUG CONNECTOR, FOR EXAMPLE FOR PRINTED CIRCUIT BOXES
US4575175A (en) * 1983-10-27 1986-03-11 Molex Incorporated Edge connector for multiple printed circuit boards
US4966557A (en) * 1987-12-04 1990-10-30 Amp Incorporated Electrical contact element
USRE35735E (en) * 1988-11-04 1998-02-17 The Whitaker Corporation Connector with barbed boardlock
US5378175A (en) * 1993-12-22 1995-01-03 Molex Incorporated Electrical connector for mounting on a printed circuit board
JP3916775B2 (en) * 1998-08-04 2007-05-23 Ｓｍｋ株式会社 connector

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2673967A (en) * 1951-10-05 1954-03-30 Darrell M Hedgecock Electrical baseboard construction
US3192498A (en) * 1962-05-17 1965-06-29 Elco Corp Contact adapted to receive pin or plate
US3245031A (en) * 1964-09-03 1966-04-05 Ark Les Switch Corp Bus bar mounting clip
US3323099A (en) * 1965-07-14 1967-05-30 Philco Corp Electrical apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2673967A (en) * 1951-10-05 1954-03-30 Darrell M Hedgecock Electrical baseboard construction
US3192498A (en) * 1962-05-17 1965-06-29 Elco Corp Contact adapted to receive pin or plate
US3245031A (en) * 1964-09-03 1966-04-05 Ark Les Switch Corp Bus bar mounting clip
US3323099A (en) * 1965-07-14 1967-05-30 Philco Corp Electrical apparatus

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3725843A (en) * 1971-07-06 1973-04-03 Teradyne Inc Bussing construction for printed circuit connectors
US4192565A (en) * 1976-10-28 1980-03-11 Richard Gianni Multi-level socket for an integrated circuit
FR2430166A1 (en) * 1978-06-29 1980-01-25 Bunker Ramo ARRANGEMENT OF ELECTRICAL CONTACTS FOR PRINTED CARD CONNECTORS
US4221458A (en) * 1978-09-08 1980-09-09 Amp Incorporated Electrical connector receptacle
US4292736A (en) * 1978-09-08 1981-10-06 Amp Incorporated Method for making jack type receptacles
DE3002515A1 (en) * 1980-01-24 1981-07-30 Hans Dipl.-Ing. 8300 Landshut Rilling Spring contact strip for plug connector system - has individual contact springs provided with additional connector members of specified shape in orthogonal and lateral directions
US4451109A (en) * 1981-02-10 1984-05-29 Tokai Electric Wire Company Limited Connector terminal
EP0251557A1 (en) * 1986-06-30 1988-01-07 The Whitaker Corporation Bus bar connector assembly
US20100019784A1 (en) * 1999-11-04 2010-01-28 Yi Wang Analyte Sensor with Insertion Monitor, and Methods
US6860766B2 (en) * 2002-03-08 2005-03-01 Cinch Connectors, Inc. Electrical connector

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DE1810513B2 (en) 1977-11-10
FR1593769A (en) 1970-06-01
GB1162620A (en) 1969-08-27
DE1810513A1 (en) 1970-06-11

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