US3838387A - Wiring connector - Google Patents

Wiring connector Download PDF

Info

Publication number
US3838387A
US3838387A US00277660A US27766072A US3838387A US 3838387 A US3838387 A US 3838387A US 00277660 A US00277660 A US 00277660A US 27766072 A US27766072 A US 27766072A US 3838387 A US3838387 A US 3838387A
Authority
US
United States
Prior art keywords
strap
clamping member
wires
edges
wings
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
US00277660A
Other languages
English (en)
Inventor
J Grillet
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3838387A publication Critical patent/US3838387A/en
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
    • 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
    • H01R4/10—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/39—Cord and rope holders
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/40—Radially spaced members joined by independent coupling
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/50—Bridged by diverse connector

Definitions

  • the present invention relates to wiring connecting devices in general and has specific reference to a wire connector and to a method of mounting same.
  • wire connecting devices may be classified in two main groups namely the so called mechanical clamping connectors and the so-called setting ones.
  • the connectors of the first group comprise all the screw clamping and tightening devices; therefore, they are adapted to be disassembled and re-assembled, permit a relatively wide range of tightening degrees, and can be fitted without resorting to complicated tools or means, since in most instances a spanner or a screwdriver is sufficient. However, they are objectionable on account of their relatively high cost, their over-all dimensions, and their lack of controllable pressure.
  • the connectors of the second group are based on the principle of plastic deformation (by using a punch and die tool), and comprise generally a metal sheath or casing enclosing the wire or wires to be connected. Therefore, they cannot be disassembled. In comparison with the devices of the first group, they are relatively inexpensive to manufacture, but like these last-named devices the pressure exerted on the wire or wires is hardly controllable, and in contrast to the mechanical clamping connectors their range of clamping forces is relatively narrow, and special tools capable of exerting a considerable pressure must be used for obtaining the necessary deformation of the metal casing.
  • a wiring device comprising in combination a strap-shaped metal strip and a U-shaped but shallower clamping member of harder metal adapted to be slidably fitted into the strap and secured thereto through any suitable means; this clamping member has two parallel sides engageable by the wings of said strap of which the upper portions are cut flush with the U- shaped member, with the upper edges of this member acting in the manner of counter-blades.
  • each wing of said strap may comprise at least one window permitting the setting or crimping thereof in relation to the clamping member.
  • the U-shaped clamping member may advantageously consist of a small U-shaped pressed sheetmetal part of which each side has formed therein a pair of windows and is cut at either end to provide a tenon permitting the mounting of a pair of distance-pieces (spacers for stiffening the U-shaped member, the spacers having end portions bent at right angles to form in conjunction with the sides of said member slideways in which the wings of the strap are adapted first to be slidably fitted and then locked against movement.
  • distance-pieces spacers for stiffening the U-shaped member, the spacers having end portions bent at right angles to form in conjunction with the sides of said member slideways in which the wings of the strap are adapted first to be slidably fitted and then locked against movement.
  • the lateral windows of said element are formed with bevelled edges facilitating the extrusion of the strap metal, and their horizontal edges comprise a counter-taper such that when the strap and its associated member are assembled by setting they cannot be disassembled.
  • the setting step constitutes however but one of the various possible methods of assembling the strap and the U-shaped element.
  • this assembly may also be formed by hammering the bent ends of the two sides of the clamping member into notches formed to this end in the ends of the two wings of said strap, or alternatively by resorting to the method already known per se of molecular compression cold welding.
  • the strap and the member have the same thickness and nature, for example aluminum alloy or copper alloy.
  • the clamping member may have a shape other than that mentioned in the foregoing.
  • it may consist simply of a U-shaped member having its two ends bent to constitute recesses for receiving the two wings of the strap.
  • an element thus obtained is not as rigid as the one described hereinabove; however, due to its inherent and relative elasticity, it has advantageous in certain types of wiring connections.
  • the strap comprises, of course, as already known per se, at least one window formed in its bottom to permit the passage of a conducting wire or cable perpendicular to those extending longitudinally through the device (T-connector).
  • FIG. 1 is a perspective view of a first embodiment of a connector in the position obtaining for connecting two perpendicular cables or wires;
  • FIGS. 2 and 3 are sections taken along the lines 22 and 3-3 of FIGS. 3 and 2, respectively;
  • FIGS. 4 and 5 are a front-elevational view and a sideelevational view, respectively, of the connector before use;
  • FIGS. 6 and 7 are perspective views showing the strap and the clamping member, respectively.
  • FIGS. 8 and 9 are perspective views showing the clamping member and the strap of the connector, respectively, when these two elements are assembled by hammering or caulking.
  • FIG. 10 is a horizontal section taken along one wing of said strap and said member after the crimping or setting operation;
  • FIG. 11 is a detail view showing on a larger scale one portion of the wings of said strap and said clamping member, in case these parts are assembled by cold welding, for example by molecular compression;
  • FIG. 12 is a perspective view showing a modified embodiment of the clamping member.
  • the connector illustrated in FIGS. 1 to 7 of the drawing comprises essentially two main elements, i.e., a strap 2 and a clamping member or bridge piece 3.
  • the strap 2 has a generally U-shaped configuration and comprises side wings 4 and a concave bottom 5; the wings 4 are relatively long, and the bottom 5 is stiffened by a pair of ribs 6 and has a central hole 7.
  • the clamping member or bridge piece 3 comprises three elements, i.e., a main element 8 and a pair of distance-pieces 9.
  • the main element 8 is of substantially U-shaped configuration and comprises a convex bottom and two upstanding sidewalls.
  • These side walls are characterised in that they comprise each a pair of windows 10 and at either end a small tenon 12.
  • the windows 10 have bevelled vertical edges 13a and 13b, respectively. and counter-taper horizontal edges 14.
  • the pair of distance-pieces 9 associated with the main element 8 to constitute the clamping member 3 are longer than the width of this member so as to project laterally therefrom and provide, between the sides of the main element 8 and the curved ends of these distance-pieces 9, slideways 15 permitting the fitting of this clamping member 3 by slidably engaging the strap wings 4.
  • the main element 8 is assembled to the distance-pieces 9 to constitute the complete clamping member 3 by simply engaging the end tenons 12 of said main element 8 into corresponding orifices punched or otherwise formed in said distance-pieces 9.
  • This connector may be used at will for interconnecting a plurality of wires or cables disposed in parallel relationship in the trough formed by the strap 2, or alternatively for electrically connecting one or more cables disposed in said trough with another cable extending at right angles thereto.
  • this last-mentioned wiring connection is illustrated in FIG. 1 wherein the reference numeral 16 designates the main cable, 17 being the branch cable passing through the central hole 7 formed in the bottom of said strap 2.
  • This connector is used as follows: the two elements, i.e., strap 2 and clamping member 3, are separated from each other; then the strap 2 is fitted to the end of the branch cable 17, and the assembly thus obtained receives the main cable 16. Under these conditions, the clamping member 3 is fitted into and upon the strap 2 and caused to slide along the vertical wings 4 of this strap until the upper edges of these wings project above the edges of the clamping member sufficiently to permit of seizing said upper edges with a pair of pliers so that a predetermined tractive force can be applied thereto; with the clamping member held on a suitable support, this traction exerted on the strap wings causes the cables 16 and 17 to be tightened or clamped under a predetermined pressure between the clamping member 3 and the bottom of strap 2.
  • the last step is a definitive interlocking of these two members so as to hold the strap and its wings in a state of mechanical stress as required for ensuring a proper electric contact by pressure; this result is obtained by setting the wings 4 of said strap 2 on the sides of clamping member 3.
  • this setting step and by virtue thereof the metal portions of said wings 4 which register with the windows 10 of clamping member 3 is pressed through these windows; the partial extrusion of the metal through these windows is facilitated by the bevelled edges 13a, 13b of windows 10 of clamping member 3.
  • FIGS. 2 and 3 wherein the metal of wings 4 is shown as having been pressed through the windows 10 of element 3, and the resulting assembling action is irreversible due to the countertaper 14 provided on the horizontal edges of the windows 10.
  • the connector is definitively locked in the clamping position on the two cables 16 and 17, and the now useless or excess portions of the strap wings 4 which project beyond the top of the clamping member 3 are cut off flush to the upper edges of the main element 8 of clamping member 3. These edges are rectilinear and therefore their rigidity is sufficient to enable them to act as counterblades for facilitating the cutting off of the useless portions of said strap wings 4.
  • the reference numerals 20 and 21 designate the two main component elements of the connector of this invention according to a modified and simplified form of embodiment thereof.
  • Element 20 is the clamping member and element 21 the strap.
  • the two side walls of clamping member 20 have their ends 22 bent at right angles and the edges of the wings of strap 21 are serrated or notched as shown at 23.
  • the clamping member 20 and strap 21 are assembled by simply caulking or hammering the bent ends 22 of member 20 into the serrations or notches 23 of strap 21, as illustrated in FIG. 10.
  • any other suitable means may be provided for assembling the strap 21 and clamping member 20; thus, as shown in FIG. 11, these two members may be assembled by cold welding or molecular compression welding as illustrated at 24.
  • this method certain requirements must be met. namely that the wings of members 20 and 21 have the same thickness and same nature, such as aluminum alloy or copper alloy, so as to be extremely malleable.
  • the clamping member may differ considerably from the arrangement described hereinabove, notably by dispensing with the use of the distance-pieces contemplated hereinabove in the first embodiment for stiffening this clamping member.
  • FIG. 12 illustrates this member without any distance-piece.
  • the ends 25 of the two side walls of clamping member 26 are bent twice at right angles to constitute slideways adapted to receive the edges of the strap; in the device illustrated in FIG. 12 windows are formed in these side walls to permit a convenient assembling, by setting. of the clamping member and strap; however, it will readily occur to those conversant with the art that any methods described in the foregoing.
  • the connector according to this invention provides the desired advantage of:
  • An electric wiring connector comprising:
  • An electric wiring connector comprising a U- shaped strap and a U-shaped clamping member disposed in parallel relationship, said clamping member being shallower than, and fitted into, said strap, and adapted to be used for pressing the wires to be connected in the bottom of said strap, said bottom comprising reinforcing ribs and a central hole for receiving a branch wire extending at right angles to the wires clamped longitudinally in the main portion of the device, said strap having a concave bottom and said clamping member a convex bottom to accomodate the wires therein, wherein the vertical edges of the vertical side walls of said clamping member are bent at right angles and the corresponding edges of said strap are formed with serrations adapted in the assembled condition of said strap and clamping member to engage said vertical edges of said clamping member and to be retained therein by simply setting said vertical edges against said serrations.
  • An electric wiring connector comprising a U- shaped strap and a U-shaped clamping member disposed in parallel relationship, said clamping member being shallower than, and fitted into, said strap, and adapted to be used for pressing the wires to be connected into the bottom of said strap, said bottom comprising reinforcing ribs and a central hole for receiving a branch wire extending at right angles to the wires clamped longitudinally in the main portion of the device, said strap having a concave bottom and said clamping member a convex bottom to accomodate the wires therein, wherein the vertical edges of the vertical side walls of said clamping member are bent twice at right angles in order to constitute slideways for receiving the corresponding edges of said strap formed with notches adapted in the assembled condition of said strap and clamping member to engage said vertical slideways of said clamping member and to be retained therein by simply setting said bent vertical edges of said clamping member against the vertical edges of said strap.
  • Method of assembling the elements of an electric connector comprising a U-shaped strap and a U-shaped clamping member disposed in parallel relationship, said clamping member being shallower than, and fitted into, said strap, with the wires to be connected disposed therebetween, which comprises the steps of pulling the upper edges of the side wings of said strap which project above the top edges of the side walls of said clamping member while exerting a suitable pressure against said clamping member, and cutting off the excess metal of said strap by using said top edges as coun-
US00277660A 1971-08-30 1972-08-03 Wiring connector Expired - Lifetime US3838387A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7132054A FR2151588A5 (de) 1971-08-30 1971-08-30

Publications (1)

Publication Number Publication Date
US3838387A true US3838387A (en) 1974-09-24

Family

ID=9082525

Family Applications (1)

Application Number Title Priority Date Filing Date
US00277660A Expired - Lifetime US3838387A (en) 1971-08-30 1972-08-03 Wiring connector

Country Status (13)

Country Link
US (1) US3838387A (de)
JP (1) JPS4833385A (de)
AR (1) AR193889A1 (de)
AU (1) AU4572472A (de)
BR (1) BR7205904D0 (de)
DD (1) DD99893A5 (de)
DE (1) DE2239769C3 (de)
ES (1) ES405727A1 (de)
FR (1) FR2151588A5 (de)
IT (1) IT964351B (de)
NL (1) NL7211665A (de)
OA (1) OA04160A (de)
ZA (1) ZA725650B (de)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4045612A (en) * 1975-09-22 1977-08-30 Raychem Corporation Splice case housing
US4372637A (en) * 1981-04-10 1983-02-08 Amp Incorporated Bond shield terminal
US4610737A (en) * 1985-10-18 1986-09-09 Hughes Tool Company Cable splice method using transition rod
US5108055A (en) * 1991-09-04 1992-04-28 Amp Incorporated Conduit holder
US5151560A (en) * 1990-12-10 1992-09-29 Amp Incorporated Grounding connector
US5164545A (en) * 1990-12-10 1992-11-17 Amp Incorporated Grounding connector
US6135829A (en) * 1995-02-24 2000-10-24 The Wiremold Company Electrical connection
US6287156B1 (en) * 2000-08-31 2001-09-11 Lear Corporation Electrical terminal connector
US6491553B2 (en) * 2000-12-20 2002-12-10 Berg Technology, Inc. Electrical connector having an electrical contact with a formed solder cup
US20040142607A1 (en) * 2002-12-11 2004-07-22 Yazaki Corporation Method of connecting and structure of connecting electric wire and connection terminal
US20090114209A1 (en) * 2005-06-16 2009-05-07 Vkr Holding A/S Solar Collector and Mounting Bracket
US20120329318A1 (en) * 2010-03-23 2012-12-27 Yazaki Corporation Connection structure of terminal to electric wire
US20130098680A1 (en) * 2010-07-14 2013-04-25 Yazaki Corporation Earth cable connecting structure of shielded electric wire
CN105977686A (zh) * 2016-05-20 2016-09-28 刘凡 一种电气用t形电线连接器

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0828240B2 (ja) * 1990-05-25 1996-03-21 矢崎総業株式会社 電線相互の圧着接続構造及び圧着接続方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US896200A (en) * 1904-03-07 1908-08-18 Dossert & Company Branch connection for electric cables.
US2695990A (en) * 1952-07-23 1954-11-30 Wellington B Sullivan Electrical connector
FR1334994A (fr) * 1962-05-30 1963-08-16 Rapid Sa Dispositif de fixation
GB976303A (en) * 1960-03-16 1964-11-25 Simel Improvements in or relating to cable connectors

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US896200A (en) * 1904-03-07 1908-08-18 Dossert & Company Branch connection for electric cables.
US2695990A (en) * 1952-07-23 1954-11-30 Wellington B Sullivan Electrical connector
GB976303A (en) * 1960-03-16 1964-11-25 Simel Improvements in or relating to cable connectors
FR1334994A (fr) * 1962-05-30 1963-08-16 Rapid Sa Dispositif de fixation

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4045612A (en) * 1975-09-22 1977-08-30 Raychem Corporation Splice case housing
US4372637A (en) * 1981-04-10 1983-02-08 Amp Incorporated Bond shield terminal
US4610737A (en) * 1985-10-18 1986-09-09 Hughes Tool Company Cable splice method using transition rod
US5151560A (en) * 1990-12-10 1992-09-29 Amp Incorporated Grounding connector
US5164545A (en) * 1990-12-10 1992-11-17 Amp Incorporated Grounding connector
US5108055A (en) * 1991-09-04 1992-04-28 Amp Incorporated Conduit holder
US6135829A (en) * 1995-02-24 2000-10-24 The Wiremold Company Electrical connection
US6287156B1 (en) * 2000-08-31 2001-09-11 Lear Corporation Electrical terminal connector
US6491553B2 (en) * 2000-12-20 2002-12-10 Berg Technology, Inc. Electrical connector having an electrical contact with a formed solder cup
US20040142607A1 (en) * 2002-12-11 2004-07-22 Yazaki Corporation Method of connecting and structure of connecting electric wire and connection terminal
US20060057903A1 (en) * 2002-12-11 2006-03-16 Yazaki Corporation Method of connecting and structure of connecting electric wire and connection terminal
US7705265B2 (en) 2002-12-11 2010-04-27 Yazaki Corporation Method of connecting and structure of connecting electric wire and connection terminal
US20090114209A1 (en) * 2005-06-16 2009-05-07 Vkr Holding A/S Solar Collector and Mounting Bracket
US20120329318A1 (en) * 2010-03-23 2012-12-27 Yazaki Corporation Connection structure of terminal to electric wire
US9011188B2 (en) * 2010-03-23 2015-04-21 Yazaki Corporation Connection structure of terminal to electric wire
US20130098680A1 (en) * 2010-07-14 2013-04-25 Yazaki Corporation Earth cable connecting structure of shielded electric wire
US9077090B2 (en) * 2010-07-14 2015-07-07 Yazaki Corporation Earth cable connecting structure of shielded electric wire
CN105977686A (zh) * 2016-05-20 2016-09-28 刘凡 一种电气用t形电线连接器

Also Published As

Publication number Publication date
BR7205904D0 (pt) 1973-07-03
AU4572472A (en) 1974-02-21
ZA725650B (en) 1973-04-25
JPS4833385A (de) 1973-05-09
DE2239769C3 (de) 1974-10-24
IT964351B (it) 1974-01-21
FR2151588A5 (de) 1973-04-20
ES405727A1 (es) 1975-09-16
DE2239769B2 (de) 1974-03-28
DE2239769A1 (de) 1973-03-08
NL7211665A (de) 1973-03-02
OA04160A (fr) 1979-12-15
AR193889A1 (es) 1973-05-31
DD99893A5 (de) 1973-08-20

Similar Documents

Publication Publication Date Title
US3838387A (en) Wiring connector
US3395381A (en) Crimpable connecting device for flat conductor cable
US3510829A (en) Electrical connector
US3344394A (en) Limited engagement lug assembly
US4444449A (en) Electrical connector
US3145261A (en) Electrical connector for insulated wires
EP0703117A2 (de) Elektrischer Verbindungskasten
JPH0629050A (ja) 接続クリップ
US4526435A (en) Cable clamping device
US4173388A (en) Connector-cable with crimped electrical terminations
US2640970A (en) Electrical connector having a spring-biased line terminal
US2965699A (en) Shear-action wire-connector
US3932018A (en) Electrical connections for closely spaced conductors and apparatus for forming such connections
US3810078A (en) Compression splice for electrically coupling electrical conductors
US4312556A (en) Electrical connector
US3594704A (en) In-line connector for electrical conductors or the like
US5898131A (en) Twisted H-shaped electrical connector
US2456554A (en) Connector for cords or cables
US3259873A (en) Terminals for flat electrical conductors
US3621117A (en) Wrapped insulation-piercing connector
US2478143A (en) Electrical connector
US3408455A (en) Electrical connector with conductor retainers
US3937549A (en) Strimp
US4900264A (en) Electrical connector and method of interconnecting flat power cables
JPH05198320A (ja) 楔形コネクタ