US3865462A - Preloaded contact and latchable housing assembly - Google Patents

Preloaded contact and latchable housing assembly Download PDF

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Publication number
US3865462A
US3865462A US338803A US33880373A US3865462A US 3865462 A US3865462 A US 3865462A US 338803 A US338803 A US 338803A US 33880373 A US33880373 A US 33880373A US 3865462 A US3865462 A US 3865462A
Authority
US
United States
Prior art keywords
leaf spring
spring contacts
housing
contact
contact members
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
US338803A
Other languages
English (en)
Inventor
Robert Franklin Cobaugh
James Ray Coller
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
Priority to US338803A priority Critical patent/US3865462A/en
Priority to GB786174A priority patent/GB1466705A/en
Priority to AU65894/74A priority patent/AU485805B2/en
Priority to DE2409662A priority patent/DE2409662A1/de
Priority to NL7402809A priority patent/NL7402809A/xx
Priority to CH290274A priority patent/CH563100A5/xx
Priority to BR1597/74A priority patent/BR7401597D0/pt
Priority to AT181374A priority patent/AT339983B/de
Priority to AR252659A priority patent/AR197936A1/es
Priority to BE141708A priority patent/BE811949A/xx
Priority to ES1974201216U priority patent/ES201216Y/es
Priority to FR7407620A priority patent/FR2220894B1/fr
Priority to JP49026752A priority patent/JPS507091A/ja
Priority to SE7403085A priority patent/SE397024B/xx
Application granted granted Critical
Publication of US3865462A publication Critical patent/US3865462A/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
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/42—Securing in a demountable manner
    • H01R13/428—Securing in a demountable manner by resilient locking means on the contact members; by locking means on resilient contact members

Definitions

  • the housing includes means for raw tomatically biasing the leaf-spring members apart when the same are inserted within the housing whereupon a resilient receptacle is formed for mating contact members which may also be inserted into the housing, and includes other means for automatically interlocking with projections disposed upon the leafspring contact members whereby the contact members and the housing may be integrally interlockingly engaged.
  • Theupper extremities of the contact members are curved outwardly so as to provide a funneled entrance upon the receptacle for the mating contacts, and the housing apertures are of such width as to prevent the insertion of a mating contact which will tend to overstress the resilient contact members.
  • the present invention relates generally to electrical contacts and housing therefor, and more particularly to a housing which automatically preloads the electrical contact members upon insertion of the same within the housing so as to facilitate the reception of other mating contacts into the housing and which also includes means for engaging projecting portions upon the contact members whereby the contact members and the housing are automatically interlocked together.
  • Another object of the present invention is to provide an improved electrical contact which may be rapidly inserted and automatically secured within a contact housing.
  • Still another object of the present invention is to provide an improved electrical contact which facilitates the rapid connection with mating contact members.
  • Yet another object of the present invention is to provide an improved electrical contact which positively grasps mating contact members so as to insure the electrical connection therebetween.
  • a further object of the present invention is to provide an improved electrical contact housing which is simple in structure and is simple and economical to produce.
  • a yet further object of the present invention is to provide an improved electrical contact housing which automatically preloads electrical contact members, so as to adapt the same for mating contact with other contact members, without any moving components.
  • a still further object of the present invention is to provide an improved electrical contact housing which automatically preloads electrical contact members and which includes. means to prevent the overstressing of such contact members.
  • a yet still further object of the present invention is to provide an improved electrical contact housing which automatically secures electrical contact members therewithin without the use of separate fastening components.
  • a preloaded contact and latchable housing assembly having leaf-spring type electrical contact members which together form a substantially U-shaped portion and inclined surface means within the housing which serves to bias the contact members apart when the same are inserted within the housing whereupon a resilient U-shaped receptacle is formed which is adapted to immediately receive mating contact members, which may be, for example, blade contacts.
  • the upper extremities of the contact members are curved outwardly so as to provide a funneled entrance upon the receptacle for the mating contact members, and the housing and contact members further include recess means and projecting ear means, respectively, which automatically interlock upon insertion of the members within the housing so as to lockingly engage the housing and contact members relative to one another.
  • Appropriate apertures are of course provided within the housing so as to afford access for the mating contacts to the contact receptacle, the width of the apertures serving to prevent the insertion ofa mating contact which will tend to overstress the resilient contact members.
  • FIG. 1 is a perspective view of the electrical contacts constructed according to the present invention and showing the same mounted within a PC. board and prior to insertion within the contact housing;
  • FIG. 2 is a partial plan view of the electrical contacts constructed according to the present invention and showing the same mounted to a carrier strip subsequent to the stamping operations utilized for manufacturing the contacts;
  • FIG. 3 is a sectional view of the electrical contacts constructed according to the present invention and showing the same mounted within a PC. board and prior to insertion within the contact housing;
  • FIG. 4 is a partial plan view of the contact housing constructed according to the present invention.
  • FIG. 5 is a partial perspective view of the contact housing constructed according to the present invention.
  • FIG. 6 is a section view showing the entire assembly of the RC. board, electrical contacts, and the contact housing;
  • FIG. 7 is a section view along line 7--7 of FIG. 4;
  • FIG. 8 is a perspective view showing the entire assembly of the P.C. board, electrical contacts, and the contact housing.
  • FIGS. 1, 2 and 3 there is shown a plurality of electrical contacts, generally. indicated by the reference character 10, the dependent ends of which form elongated posts 12 which are adapted for wirewrapping or any other type of point-to-point wiring connections.
  • the posts 12 may be respectively inserted through a plurality of bores 14 formed within a P.C. board 16, and the contacts are further provided with tapered ear members 18 which extend outwardly from the upper portions of posts 12, the lateral expanse of which is greater than the diameter of the bores 14 whereby the lower planar surfaces 19 of cars 18 abut the upper surface 20 of P.C. board 16 thereby limiting the depth to which the contacts may be inserted within board 16.
  • a suitable metal sheet may be subjected to several stamping operations whereby a serial array of contacts 10, including post members 12 and contact members 22 and 24, as well as a carrier strip 26 may be simply and economically produced, the strip 26 being integrally connected to contact members 22 by means of dependent leg members 28, as specifically shown in FIG. 2. Since the stamped structures are simple and integral requiring no folding parts, they may be placed in a very close spatial relationship so as to facilitate storage.
  • the carrier strip 26, along with contacts 10, may be rolled upon a spool, not shown, and may also be provided with a plurality of apertures which are adapted to cooperate, in sprocket wheel fashion, with pins provided upon appropriate automatic machinery, also not shown, which serves to unwind the strip and contacts from the storage spool when it is desired to insert the contacts within P.C. board 16.
  • the contact assemblies may be subjected to a forming operation whereupon each of the contact members 22 and 24 is caused to attain a substantially sinusodal configuration while the laterally offset contact members together are caused to form a substantially U-shaped contact portion, as specifically shown in FIG. 3.
  • the contacts may all be simultaneously inserted and secured within P.C. board 16, either by mechanical, soldering, or force fitting means, while still attached to carrier strip 26, as specifically shown in FIG. 1, and in order to facilitate removal of strip 26 subsequent to the insertion of the contacts within the board, the integral connection between contact member 22 and dependent leg member 28 may be scored or perforated, as shown at 32 in FIGS. 1 and 2.
  • FIGS. 4-8 there is shown a rectangular dielectric housing, generally indicated by the reference character 34, whiich may be mounted upon contacts 10 subsequent to the insertion of the contacts within P.C. board 16.
  • the housing includes a plurality of substantially rectangular longitudinal apertures 36 extending therethrough, each of which is adapted to receive therein one of the contacts 10 which may be inserted through a lower funneled entrance 37 associated with each aperture.
  • each of the apertures include diametrically opposed inclined surfaces 38, only one of which is shown in the drawings, which serve to abut the upper outwardly curved portions 40 of each of the contact members 22 and 24 as the housing is inserted over the contacts, whereby the leaf-spring type contact members are biased apart in cantilever fashion so as to diverge from the position shown in FIG. 3 to that position shown in FIG. 6.
  • longitudinally extending undercut slotted portions 42 are also provided within the sidewalls contiguous to surfaces 38.
  • the contact members thus serve to form a receptacle therebetween for blade contacts, not shown, which may be inserted through the end of the apertures 36 opposite to that end through which the contacts 10 were inserted, for mating with members 22 and 24.
  • the contact members 22 and 24 are prestressed or preloaded by the inclined surfaces 38 to an extent such that the smallest distance between parallel planes tangent to the interior surfaces of the members, as shown at 44, is slightly less than the thickness of the contact blades to be inserted therebetween, such prestressing or preloading thereby enabling the contact blades to be easily and quickly inserted, and yet facilitating positive electrical contact between the contact members and blades due to the fact that the contact members retain their inherent resiliency as the stress imparted thereto does not exceed the elastic limit of the contact member material, the contact members thus being capable of further divergence as the contact blades are in fact inserted therebetween.
  • the curved portions 40 of the members 22 and 24 also serve to provide a funneled entrance for the guidance of the contact blades as the same are inserted between the contact members. Furthermore, in order to insure that the entrance of the contact blades into the receptacle between the contact members is unimpeded, the tips 46 of curved portions 40 are housed within the undercut slotted portions 42, and consequently, upon being inserted, the blades are caused to engage the smooth, curved surface portions 40.
  • the structure of the housing apertures 36 is such that the sidewalls defining the apertures serve as positive stop means which engage the corresponding surfaces of the contact blades as the same are inserted within the apertures whereupon the maximum amount to which the contact members 22 and 24 may be fixed by the insertion of the contact blades, and consequently the maximum separation which may occur between the members at the normally narrowest separation points 44, is dictated by the width of the apertures 36 which of course dictate the maximum width of the blades which may be inserted therewithin.
  • the housing 34 serves to facilitate the entrance of the contact blades into the receptacle formed by the contact members 22 and 24, and more importantly, provides a means which protects the contact members from becoming overstressed due to excessive bending of the same.
  • one pair of housing apertures which are in a diametrically opposed relationship may include substantially rectangular relieved areas 48 such that the overall configuration of such housing apertures 50 is substantially Z-shaped, as opposed to the substantially rectangular configuration of the remaining apertures.
  • the sidewalls defining these apertures 50 also differ from the sidewalls defining apertures 36 in that in lieu of undercut slotted portions 42, there are provided, at the upper terminal portions of surfaces 38 and adjacent relieved areas 48, recessed portions 52.
  • the housing 34 may be automatically interlocked upon the P.C. board-contact assembly.
  • a thin prying tool such as for example, a screwdriver blade or the like, may be inserted within the inner portion of the relieved areas 48 so as to outwardly bias the contact members and thereby remove the same from the recessed portions 52.
  • the housing 34 is shown, such as for example, in FIGS. 6 and 8, as being supported upon the upper surface of P.C. board 16, the housing need not engage board 16 in order to be secured relative thereto as the housing can be supported by interengagement between the upper extremities 46 of the contact members and the overhanging member 58 of undercut portion 42, and also through the interlocking assembly of projections 54 and recessed portions 52. It is a further possibility that the entire assembly be constructed such that the housing 34 is supported upon the upper planar surfaces 60 of ear members 18.
  • the preloaded contact housing assembly of the present invention has important advantages over the known prior art structures in that the contact members may be simply and economically produced and assembled within a housing having a unique structure which automatically separates and preloads the contact members whereupon the assembly facilitates the reception of other mating contact members therewithin so as to complete various associated electronic circuitry.
  • the preloading of the contact members also serves to resiliently bias the same so as to insure positive electrical contact between such contact members and the mating contact members, and the contact housing is further provided with means which engages projection means disposed upon the contact members whereby the housing and the contact members are automatically locked relative to one another.
  • a connector comprising:
  • a terminal having a post portion integral with a bifurcated section defining a pair of resilient leaf spring contacts pivotable by resilient cantilever deflection in mutually exclusive planes of pivotable motion, said leaf spring contacts having laterally opposed contact making surfaces which together define a receptacle having a given width,
  • a housing having interior sidewalls defining an opening receiving said leaf spring contacts
  • first opposing sidewalls of said opening spaced apart by a distance slightly greater than said given width and having respective undercut and respectively oppositely inclined sidewall portions camming corresponding leaf spring contacts resiliently in cantilever deflection and in opposite directions within said mutually exclusive planes of pivotable motion,
  • leaf spring contacts having means in engagement with said undercut sidewall portions for maintaining said leaf spring contacts in oppositely deflected positions to define a receptacle extending therebetween
  • leaf spring contacts being further resiliently pivotable by resilient cantilever deflection in said opposite directions to enlarge said receptacle for receipt of a male terminal therein,
  • said leaf spring contacts being engageable against said second opposite sidewalls of said opening to limit said resilient cantilever deflection in said opposite directions.
  • a connector comprising:
  • a terminal having a post portion integral with a bifurcated section defining a pair of resilient leaf spring contacts pivotable by resilient cantilever deflection in mutually exclusive planes of pivotable motion
  • a housing having interior sidewalls defining an opening receiving said leaf spring contacts
  • first opposing sidewalls of said opening having respective undercut sidewall portions camming corresponding leaf spring contacts resiliently in cantilever deflection and in opposite directions within said mutually exclusive planes of pivotable motion
  • leaf spring contacts being maintained by engagement with said undercut sidewall portions in oppositely deflected positions to define a receptacle extending therebetween
  • each leaf spring contact has a projecting ear
  • said undercut portions each includes a recessed portion retaining a corresponding projecting ear therein, thereby locking said housing to a corresponding leaf spring contact.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Multi-Conductor Connections (AREA)
US338803A 1973-03-07 1973-03-07 Preloaded contact and latchable housing assembly Expired - Lifetime US3865462A (en)

Priority Applications (14)

Application Number Priority Date Filing Date Title
US338803A US3865462A (en) 1973-03-07 1973-03-07 Preloaded contact and latchable housing assembly
GB786174A GB1466705A (en) 1973-03-07 1974-02-21 Electrical connector assembly
AU65894/74A AU485805B2 (en) 1973-03-07 1974-02-21 Electrical connector assembly
DE2409662A DE2409662A1 (de) 1973-03-07 1974-02-28 Elektrische verbinderanordnung
CH290274A CH563100A5 (es) 1973-03-07 1974-03-01
NL7402809A NL7402809A (es) 1973-03-07 1974-03-01
BR1597/74A BR7401597D0 (pt) 1973-03-07 1974-03-05 Um conjunto conetor eletrico
AT181374A AT339983B (de) 1973-03-07 1974-03-05 Elektrische verbinderanordnung
AR252659A AR197936A1 (es) 1973-03-07 1974-03-06 Conjunto de conector electrico
BE141708A BE811949A (fr) 1973-03-07 1974-03-06 Connecteur electrique
ES1974201216U ES201216Y (es) 1973-03-07 1974-03-06 Un conjunto de conectadores electricos.
FR7407620A FR2220894B1 (es) 1973-03-07 1974-03-06
JP49026752A JPS507091A (es) 1973-03-07 1974-03-07
SE7403085A SE397024B (sv) 1973-03-07 1974-03-07 Elektrisk kontaktanordning

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US338803A US3865462A (en) 1973-03-07 1973-03-07 Preloaded contact and latchable housing assembly

Publications (1)

Publication Number Publication Date
US3865462A true US3865462A (en) 1975-02-11

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ID=23326235

Family Applications (1)

Application Number Title Priority Date Filing Date
US338803A Expired - Lifetime US3865462A (en) 1973-03-07 1973-03-07 Preloaded contact and latchable housing assembly

Country Status (13)

Country Link
US (1) US3865462A (es)
JP (1) JPS507091A (es)
AR (1) AR197936A1 (es)
AT (1) AT339983B (es)
BE (1) BE811949A (es)
BR (1) BR7401597D0 (es)
CH (1) CH563100A5 (es)
DE (1) DE2409662A1 (es)
ES (1) ES201216Y (es)
FR (1) FR2220894B1 (es)
GB (1) GB1466705A (es)
NL (1) NL7402809A (es)
SE (1) SE397024B (es)

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US4004845A (en) * 1975-04-17 1977-01-25 Elco Corporation High density electrical connector employing male blade with offset portions
US4007977A (en) * 1974-05-09 1977-02-15 Bunker Ramo Corporation Electrical connector
US4030792A (en) * 1976-03-01 1977-06-21 Fabri-Tek Incorporated Tuning fork connector
US4037915A (en) * 1976-04-29 1977-07-26 Comatel - Comptoir Europeen De Materiel Electronique Electrical connector strips
FR2389255A1 (es) * 1977-04-29 1978-11-24 Bunker Ramo
US4140361A (en) * 1975-06-06 1979-02-20 Sochor Jerzy R Flat receptacle contact for extremely high density mounting
US4384754A (en) * 1980-11-17 1983-05-24 Amp Incorporated Multi-plane connectors
US4418475A (en) * 1979-11-19 1983-12-06 Elfab Corporation Method of manufacturing a printed circuit card edge connector having a pull through bellows contact a lay-over insulator
US4534611A (en) * 1981-06-23 1985-08-13 Siemens Aktiengesellschaft Contact springs
WO1986001644A1 (en) * 1984-08-24 1986-03-13 Burndy Corporation High density connector requiring low mating force
US4582386A (en) * 1984-11-01 1986-04-15 Elfab Corp. Connector with enlarged power contact
US4591230A (en) * 1984-06-29 1986-05-27 Frank Roldan Electrical connector receptacle
EP0283118A2 (en) * 1987-03-16 1988-09-21 Molex Incorporated Low insertion force mating electrical contact structure
US4887976A (en) * 1988-08-18 1989-12-19 Amp Incorporated Electrical terminals for flat power cable
EP0479500A2 (en) * 1990-10-02 1992-04-08 The Whitaker Corporation Connector assembly with a series of electrical contacts
US5334053A (en) * 1992-10-19 1994-08-02 Burndy Corporation Dual-beam electrical contact with preload tabs
GB2281154A (en) * 1993-08-18 1995-02-22 Sumitomo Wall Systems Ltd Drainage construction for electrical connection box
US5487684A (en) * 1992-07-01 1996-01-30 Berg Technology, Inc. Electrical contact pin for printed circuit board
WO1997012424A1 (de) * 1995-09-27 1997-04-03 Siemens Aktiengesellschaft Kontaktfeder für einen steckverbinder
US5692928A (en) * 1996-05-10 1997-12-02 Molex Incorporated Electrical connector having terminals with improved retention means
WO1998015990A1 (en) * 1996-10-10 1998-04-16 Berg Technology, Inc. Low profile connector
US5807142A (en) * 1996-05-10 1998-09-15 Molex Incorporated Electrical connector having terminals with improved retention means
US5971817A (en) * 1995-09-27 1999-10-26 Siemens Aktiengesellschaft Contact spring for a plug-in connector
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US6155860A (en) * 1998-01-31 2000-12-05 Berg Technology, Inc. Socket for electrical component
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US6325644B1 (en) 1996-10-10 2001-12-04 Berg Technology, Inc. High density connector and method of manufacture
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FR2871954A1 (fr) * 2004-06-16 2005-12-23 Valeo Electronique Sys Liaison Dispositif de liaison electrique
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USD718253S1 (en) 2012-04-13 2014-11-25 Fci Americas Technology Llc Electrical cable connector
US8905651B2 (en) 2012-01-31 2014-12-09 Fci Dismountable optical coupling device
USD720698S1 (en) 2013-03-15 2015-01-06 Fci Americas Technology Llc Electrical cable connector
US8944831B2 (en) 2012-04-13 2015-02-03 Fci Americas Technology Llc Electrical connector having ribbed ground plate with engagement members
USD727268S1 (en) 2012-04-13 2015-04-21 Fci Americas Technology Llc Vertical electrical connector
USD727852S1 (en) 2012-04-13 2015-04-28 Fci Americas Technology Llc Ground shield for a right angle electrical connector
US9048583B2 (en) 2009-03-19 2015-06-02 Fci Americas Technology Llc Electrical connector having ribbed ground plate
USD733662S1 (en) 2013-01-25 2015-07-07 Fci Americas Technology Llc Connector housing for electrical connector
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US9257778B2 (en) 2012-04-13 2016-02-09 Fci Americas Technology High speed electrical connector
US9543703B2 (en) 2012-07-11 2017-01-10 Fci Americas Technology Llc Electrical connector with reduced stack height
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DE2946196C2 (de) * 1979-11-15 1987-05-07 Allied Corp., Morris Township, N.J. Kontaktleiste
EP0217829A1 (en) * 1985-04-08 1987-04-15 AMP INCORPORATED (a New Jersey corporation) Cover for flat cable connector
US4790773A (en) * 1986-09-17 1988-12-13 E. I. Du Pont De Nemours And Company Electrical receptacle
ATE510329T1 (de) * 2006-09-14 2011-06-15 Hager Electro Gmbh & Co Kg Verbindungsstück zur herstellung eines elektrischen kontakts

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Cited By (117)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4007977A (en) * 1974-05-09 1977-02-15 Bunker Ramo Corporation Electrical connector
US4004845A (en) * 1975-04-17 1977-01-25 Elco Corporation High density electrical connector employing male blade with offset portions
US4075759A (en) * 1975-04-17 1978-02-28 Elco Corporation Transverse connector assembly method
US4140361A (en) * 1975-06-06 1979-02-20 Sochor Jerzy R Flat receptacle contact for extremely high density mounting
US4030792A (en) * 1976-03-01 1977-06-21 Fabri-Tek Incorporated Tuning fork connector
US4037915A (en) * 1976-04-29 1977-07-26 Comatel - Comptoir Europeen De Materiel Electronique Electrical connector strips
FR2389255A1 (es) * 1977-04-29 1978-11-24 Bunker Ramo
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Also Published As

Publication number Publication date
BR7401597D0 (pt) 1974-11-05
AR197936A1 (es) 1974-05-15
NL7402809A (es) 1974-09-10
AU6589474A (en) 1975-08-28
ES201216U (es) 1975-09-16
FR2220894A1 (es) 1974-10-04
ES201216Y (es) 1976-01-16
CH563100A5 (es) 1975-06-13
DE2409662A1 (de) 1974-09-12
GB1466705A (en) 1977-03-09
FR2220894B1 (es) 1978-01-06
JPS507091A (es) 1975-01-24
BE811949A (fr) 1974-09-06
AT339983B (de) 1977-11-25
SE397024B (sv) 1977-10-10
ATA181374A (de) 1977-03-15

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