US3633156A - Tab receptacle - Google Patents

Tab receptacle Download PDF

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Publication number
US3633156A
US3633156A US26474A US3633156DA US3633156A US 3633156 A US3633156 A US 3633156A US 26474 A US26474 A US 26474A US 3633156D A US3633156D A US 3633156DA US 3633156 A US3633156 A US 3633156A
Authority
US
United States
Prior art keywords
receptacle
base
tab
slots
sides
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
US26474A
Other languages
English (en)
Inventor
Wladimiro Teagno
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
Application filed by AMP Inc filed Critical AMP Inc
Application granted granted Critical
Publication of US3633156A publication Critical patent/US3633156A/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
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/113—Resilient sockets co-operating with pins or blades having a rectangular transverse section
    • 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
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/115—U-shaped sockets having inwardly bent legs, e.g. spade type

Definitions

  • a tab receptacle formed from a sheet metal blank and comprising a receptacle portion of generally channel cross section having a base and a pair of longitudinally converging sides, each side being formed with an elongate aperture for receiving a tab between the base and sides of the apertures remote from the base.
  • This invention relates to tab receptacles and is particularly concerned with a tab receptacle for effecting releasable electrical connection to a flat tab.
  • tab receptacles are known and a generally used typecomprisesa clip portion of channel cross section integrally formed at one end with a wire connecting portion.
  • Receptacles of this type are used in vastquantities in electrical equipment and there has been persistent economic pressure to reduce their cost without loss of electrical and mechanical performance. It has been found that apparently small differences in configuration between receptacles account for significantly different performance characteristics.
  • the types most generally used have tended to fall into two distinct groups, both formed from flat sheet metal stock.
  • the first group has a channel cross section receptacle with parallel sides which at their free edges are rolled over to define spring arms with edges opposed to the base of the channel, a complementary tab being a spring fit between the edges and the base.
  • the second group also has a parallel-sided channel section receptacle but the free edges of the sides are turned over to extend generally parallel with the channel base.
  • the base is generally slotted longitudinally to define a central longitudinal spring which is elevated to engage a side of the tab and push the tab up against the turned over free edges of the channel sides.
  • the channel base must be of width slightly greater than the complementary tab and the flat-sheet metal blank from which the receptacle is formed must have a developed width at least as great as the width of the channel base plus the width of each of the channel sides.
  • a tab receptacle formed from a sheet metal blank and comprising a receptacle-portion of generally channel cross section having a base and apair of sides, according to the present invention the sides converge longitudinally of the channel, each side being formed with an elongate aperture adjacent thebase to define a slot'closed at its ends and extending longitudinally through part of the length of the side so that a tab may be inserted between the divergent ends of the sides to enter the slots between the base and sides of the slots remote from the base.
  • the leading end of a tab is tapered in thickness and this facilitates initial engagement of the tab between the base of the receptacle andthe opposite sides of the slots. Further insertion of the tab effects resilient flexure of the channel to clamp the tab against the base of the receptacle.
  • the sides of the channel converge in arcuate manner and are convex towards each other.
  • the slots in the sides suitably extend into the base laterally and the arcuately convergent sides overlie edge portions of the base which is of generally triangular form.
  • the base of the receptacle maybe shaped to act as a spring and to this end it may be bowed longitudinally in convex manner towards sides of the slots remote from the base or part of the base maybe elevated in relation to parts adjacent the channel sides.
  • the base portion between the slots may be laterally'bowed.
  • a portion of the base centrally disposed between the divergent ends of the channel sides is elevated between the channel sides above base portions adjacent and integral with the divergent ends of the channel sides.
  • a similar configuration may be adopted between the convergent ends of the sides, but preferably the base portion between the slots is elevated in relation to the base portion between the convergent ends of the sides.
  • the two base portions are disposed on forward and rearward sides of a step extending laterally of the channel in front of the rear ends of the slots.
  • Ends or comers of the slots are suitably radiused in concave manner, and the corners remote from the base are suitably recessed in arcuate concave manneraway from the base.
  • portions of thesides at their divergent ends, and forwardly of the slots -extend in generally parallel manner to provide a parallel-sided entrance section adapted to engage edges of'an insertedtaband guide thetab into the slots.
  • the parallel-sided entrance portion also serves to stabilize the receptacle on the tab against rocking in the plane of the tab. Onfull insertion, the leading end of the tab engages rear ends of the slots which act as a stop against further insertion and serve to improve stabilization of the receptacle on the tab.
  • the receptacle at the convergent ends of the sides is integrally formed with a wire connecting section comprising a U-shaped ferrule.
  • a transition section intermediate the ferrule and the receptacle is also of U or channel form and of height less than that of the receptacle sides, to define between the receptacle sides and limbs of the ferrule U- shaped recesses and a continuous channel form from end-toend of the receptacle.
  • FIG. 1 is a perspective view from the front of an electrical connector tab receptacle secured to an insulated conductor wire;
  • FIG. 2 is a side elevation of the connector receptacle of FIG. 1 before being secured to the conductorwire;
  • FIG. 3 is a longitudinal section elevation of the connector receptacle of FIG. 2;
  • FIG. 4 is a front end elevation of the connector receptacle of FIGS. 2 and 3 viewed from :the right-hand end of .these FIGS.;
  • FIG. 5 is a plan view of the receptacle portion of the connector receptacle of FIGS. 1 to 4;
  • FIG. 6 is a plan view of a flat sheet metal blank forforming the connector receptacle of.FIGS. '1 ms;
  • FIG. 7 is a view similar to that ofFIG. 5 but with aninserted tab shown in broken lines;
  • FIGS. 8 and 9 are respectively a side elevation and a perspective view from above looking from the front of a modified connector tab receptacle, part ofthe receptacle of 'FIG. 9 being cut away.
  • the electrical conductor receptacle. of- FIG. 1 issecured to an insulated conductor wire 1 having awire core 2 adjacent a crimping section comprising a wire crimp ferrule 3 and insulation support ferrule 4.
  • the insulation support ferrule. 4 is closed about the insulation and the wire crimp ferrule 3 about a stripped end of the core 2 of the wire, the ferrules 3. and 4 being integrally formed with a receptacle portion Sfrom a flat sheet metal blank shown in FIG;6.
  • the receptacle portion 5 is of channel cross section as seen in FIG-4, with a base 6.
  • the sides 7 are formed'with .elongateapertures defining longitudinal slots 8.:adjacent the .base 6swhich is of generally triangular form in plan view,.as seen-in FlGS. 5 to 7. Portions of the sides 7 on the sides of slots 8 remote from the base 6 are arcuately curved, as seen in plan view in FIGS. 5 and 7, in convex manner towards each other. Rearparts-9 of the sides 7 extend in generally parallel manner towards the wire crimp ferrule 3 and side portions 10 forwards of slots 8 also extend in generallyparallel manner to define a parallelsided entrance to the receptacle portion 5.
  • slots 8 are radiused in concave fashion and the comers l1 remote from the base 6 are arcuately recessed awayfrom the base. Otherwise the slots 8 are of generally-parallelogram form, as seen in FIG. 6, but suitably with sides of the slots 8 being remote from the base 6 converging at a slightly greater rate than the sides of the slots 8 adjacent the base 6, parts of the sides 7 extending longitudinally of and bordering the slots 8 of substantially uniform width, as seen in FIG. 6, over the length between recessed corners 11.
  • the ferrules 3 and 4 are, as seen in FIG. 4, of generally U- shape before crimping to the conductor wire, as seen in FIG. I.
  • the insulation support ferrule 4 has a pair of cars of greater height and span than the ears of the wire crimp ferrule 3.
  • the ferrules 3 and 4 are spaced by a short U or channel section of height less than that of the ferrule portions 3 and 4, and the ears of the ferrule 3 are of greater height than the sides 7 of the receptacle, as seen in FIG. 3.
  • the ferrule 3 is spaced longitudinally from the sides 7 of the receptacle by a short transition section of U or channel form of height less than that of the sides 7 and the connector receptacle is thus formed with a generally channel form throughout its length.
  • the flat sheet metal blank from which the connector receptacle is formed has a maximum dimension widthwise of the connector receptacle, i.e., transverse to the direction of wire lay in ferrules 3 and 4 and of tab insertion, at the ears of the insulation support ferrule 4, and thus the connector receptacle may be stamped from sheet metal strip, having a minimum width equal to the developed width of the insulation support ferrule 4.
  • An aperture 12 is stamped in the intended base of the ferrule to serve as a pilot hole for feeding and indexing of the strip of metal from which the terminals are formed, and further for feeding the terminals in strip form.
  • the blank has aligned carrier portions 13, 14 which serve to join, and to space apart, successive connector receptacles in a strip of receptacles formed from a continuous strip of metal.
  • the carrier strip portions 13 and 14 are sheared away when individual connectors are cut from the strip and crimped to conductor wires, as is normal practice.
  • the flat blank of FIG. 6 is suitably formed into the connector receptacles of FIGS. 1 to by suitable press operations in a progressive die which serves to fold up the channel sides 7 and to form the base 6 of the receptacle in the configuration shown in FIGS. 3 and 4.
  • the central portion 15 of the base 6 at the forward end between the divergent ends of the sides 7 is elevated by bending portion 16 of the blank at forward ends of slots 8 in arcuately convex upward fashion.
  • the central portion 15 of elevated base 6 is arcuately bowed convexly upwards transversely of the receptacle, at a large radius of curvature, as seen in FIG. 4.
  • FIG. 4 As seen in FIG.
  • the elevated base 6 adjacent and forwardly of the rear ends of slots 8 is bent downwards at 17 at a rearward inclination and then rearwards between rear parts 9 of the sides 7 to define a transverse step 17.
  • the base extends rearwardly from the step 17 into the base of the U-shaped ferrule portions 3 and 4.
  • the transverse bowing of the forward part 15 of the base 6 extends longitudinally rearwards up to the step 17.
  • the press-forming operation determines the spacing 18, as seen in FIG. 3, between the elevated base 6 and opposed sides of slots 8, which gap is of importance in helping to provide adequate contact pressure on an inserted tab.
  • the base 6 is formed centrally of its width and rearwards of the side portions 10 with a dimple 19 protruding upwards between the sides 7, but of small size in relation to the gap 18.
  • the dimple 19 is arranged to engage a complementary recess in a mating tab in well-known manner.
  • a tab 20 is inserted between the forward side portions 10, which serve to ensure appropriate orientation of the receptacle portion 5 on the tab 20, and to guide the tab 20 into the slots8.
  • the leading end of the tab first enters at the forward ends of the slots at recesses 11 which facilitate tab entry by presenting an initial gap of greater height than the gap 16.
  • Further insertion of the tab into narrower parts of the slots 8 is facilitated by a smooth reversal of curvature 21 at the rear of forward recesses 11 as they merge into upper sides of the slots 8.
  • the receptacle is resiliently strained to increase the gap 18 to accommodate the tab thickness.
  • the receptacle base 6 tends to flatten against the underside of the tab 20 and urges the tab 20 upwardly against the opposed sides of slots 8.
  • the rear ends of the slots 8 act as a stop and also assist in stabilizing the receptacle 5 against relative tilting in the plane of the tab.
  • the base 6 of the receptacle is stiffened at its rear end in the region of the step 17 by a longitudinal indentation 23.
  • the indentation 23 is of generally triangular form, as seen from above in FIG. 9, and points towards the forward end of the receptacle. Sides of the triangular indent diverge rearwardly between the rear parts 9 of sides 7, and the indentation extends forwardly and rearwardly of the step 17, as seen in FIG. 8. The indentation increases in depth rearwardly and projects downwards from the base 6.
  • the side parts 10, forwards of the slots 8, are formed at their forward ends with ears 24, pushed inwards to extend normally of the side parts 10 towards each other above the side portions 16 of the forward end of the base 6.
  • the lower sides 25 of the cars 24 are spaced above the base 6 by a distance slightly greater than the gap 18 between the base and the upper sides of slots 8.
  • the cars 24 define an entrance section helping to guide a complementary tab, such as 20 of FIG. 7, more easily into the slots 8 by ensuring that it is inserted into the receptacle in contiguous relation to the base 6.
  • a tab receptacle formed from a sheet metal blank comprising a receptacle portion of generally channel shaped cross section having a base and a pair of sides, in which the sides converge longitudinally of the channel, each side being formed with a contact arm and with an elongate aperture adjacent the base to fine a slot closed at its ends and extending longitudinally through part of the length of the sides, the slots separating the contact arms from the base, and the contact arms being formed generally normal to the base, so that a tab may be inserted between the divergent ends of the sides to enter the slots between the base and an edge of the contact arms.

Landscapes

  • Connecting Device With Holders (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Package Frames And Binding Bands (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
US26474A 1969-04-29 1970-04-08 Tab receptacle Expired - Lifetime US3633156A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1621969 1969-04-29

Publications (1)

Publication Number Publication Date
US3633156A true US3633156A (en) 1972-01-04

Family

ID=11148630

Family Applications (1)

Application Number Title Priority Date Filing Date
US26474A Expired - Lifetime US3633156A (en) 1969-04-29 1970-04-08 Tab receptacle

Country Status (12)

Country Link
US (1) US3633156A (sv)
JP (1) JPS5119156B1 (sv)
AT (1) AT303157B (sv)
BE (1) BE749547A (sv)
CH (1) CH526209A (sv)
DE (1) DE2019221A1 (sv)
ES (1) ES157562Y (sv)
FR (1) FR2040371A1 (sv)
IL (1) IL34353A (sv)
NL (1) NL7005806A (sv)
NO (1) NO126056B (sv)
SE (1) SE353193B (sv)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0602681A2 (en) * 1992-12-18 1994-06-22 The Whitaker Corporation Receptacle terminal having retention means
US20110028054A1 (en) * 2008-05-07 2011-02-03 Autonetworks Technologies, Ltd. Crimping terminal and method of manufacturing terminal-provided wire
US20110124247A1 (en) * 2008-07-22 2011-05-26 Sumitomo Wiring Systems, Ltd. Terminal fitting and electrical cable equipped with the same
US10211558B1 (en) 2017-12-21 2019-02-19 Te Connectivity Corporation Low insertion force tab receptacle

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2423883B1 (fr) * 1978-04-17 1986-02-14 Bunker Ramo Organe de connexion femelle pour l'enfichage d'une broche parallelepipedique
FR2514573A1 (fr) * 1981-10-12 1983-04-15 Labinal Element femelle de contacts electriques pour organes males de contacts meplats
JPS61136475U (sv) * 1985-02-15 1986-08-25
FR2601517B1 (fr) * 1986-07-11 1990-02-09 Lecourtois Eugene Element femelle de contact, bande formee de tels elements et son procede de fabrication

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2789278A (en) * 1953-05-01 1957-04-16 Controls Company Electrical connection and method of making the same
US3188606A (en) * 1963-10-21 1965-06-08 Amp Inc Electrical connector
US3452324A (en) * 1967-10-04 1969-06-24 Thomas & Betts Corp Electrical terminal

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2789278A (en) * 1953-05-01 1957-04-16 Controls Company Electrical connection and method of making the same
US3188606A (en) * 1963-10-21 1965-06-08 Amp Inc Electrical connector
US3452324A (en) * 1967-10-04 1969-06-24 Thomas & Betts Corp Electrical terminal

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0602681A2 (en) * 1992-12-18 1994-06-22 The Whitaker Corporation Receptacle terminal having retention means
EP0602681A3 (en) * 1992-12-18 1995-12-20 Whitaker Corp Receptacle terminal having retention means.
US20110028054A1 (en) * 2008-05-07 2011-02-03 Autonetworks Technologies, Ltd. Crimping terminal and method of manufacturing terminal-provided wire
US8177590B2 (en) * 2008-05-07 2012-05-15 Autonetworks Technologies, Ltd. Crimping terminal and method of manufacturing terminal-provided wire
US20110124247A1 (en) * 2008-07-22 2011-05-26 Sumitomo Wiring Systems, Ltd. Terminal fitting and electrical cable equipped with the same
US8177591B2 (en) * 2008-07-22 2012-05-15 Sumitomo Wiring Systems, Ltd. Terminal fitting and electrical cable equipped with the same
US10211558B1 (en) 2017-12-21 2019-02-19 Te Connectivity Corporation Low insertion force tab receptacle

Also Published As

Publication number Publication date
NL7005806A (sv) 1970-11-02
IL34353A (en) 1973-01-30
NO126056B (sv) 1972-12-11
FR2040371A1 (sv) 1971-01-22
CH526209A (fr) 1972-07-31
JPS5119156B1 (sv) 1976-06-15
ES157562U (es) 1970-10-16
SE353193B (sv) 1973-01-22
AT303157B (de) 1972-11-10
BE749547A (fr) 1970-10-01
ES157562Y (es) 1971-05-16
DE2019221A1 (de) 1970-11-12
IL34353A0 (en) 1970-06-17

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