US3112150A - Electrical connections - Google Patents
Electrical connections Download PDFInfo
- Publication number
- US3112150A US3112150A US604544A US60454456A US3112150A US 3112150 A US3112150 A US 3112150A US 604544 A US604544 A US 604544A US 60454456 A US60454456 A US 60454456A US 3112150 A US3112150 A US 3112150A
- Authority
- US
- United States
- Prior art keywords
- wire
- metal
- connector
- crimped
- ferrule
- 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
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- 239000002184 metal Substances 0.000 claims description 39
- 239000004020 conductor Substances 0.000 claims description 7
- 238000002788 crimping Methods 0.000 description 14
- 230000000750 progressive effect Effects 0.000 description 10
- 239000000463 material Substances 0.000 description 8
- 230000000295 complement effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000002939 deleterious effect Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003042 antagnostic effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
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- 238000005520 cutting process Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000007586 pull-out test Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- CEWNUSPMSSUSJA-AATRIKPKSA-N ustin Chemical compound O1C(=O)C2=C(C)C(Cl)=C(O)C(Cl)=C2OC2=C(Cl)C(C(/C)=C/C)=C(O)C(C)=C21 CEWNUSPMSSUSJA-AATRIKPKSA-N 0.000 description 1
Images
Classifications
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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
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
- H01R43/058—Crimping mandrels
-
- 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
-
- 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
- H01R4/18—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 by crimping
- H01R4/183—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 by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section
- H01R4/184—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 by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section comprising a U-shaped wire-receiving portion
- H01R4/185—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 by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section comprising a U-shaped wire-receiving portion combined with a U-shaped insulation-receiving portion
-
- 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
- H01R4/18—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 by crimping
- H01R4/188—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 by crimping having an uneven wire-receiving surface to improve the contact
-
- 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
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49833—Punching, piercing or reaming part by surface of second part
-
- 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
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49908—Joining by deforming
- Y10T29/49925—Inward deformation of aperture or hollow body wall
- Y10T29/49927—Hollow body is axially joined cup or tube
- Y10T29/49929—Joined to rod
Definitions
- the thickness or gauge of the strip is of importance for several reasons.
- a high quality crimped connection between a wire and a connector or terminal must be mechanically strong, must possess a high degree of electrical conductivity, and must maintain its electrical and mechanical integrity under deleterious conditions such as vibration, temperature cycling and corrosive conditions.
- the connector should be manufactured from metal stock of at least some minimum thickness which will be dependent upon the particular type and size of the connector and the manner in which it is crimped. If metal stock having a thickness less than this minimum thickness is employed, the electrical and mechanical properties of the crimped connection will be inferior.
- connectors and terminals include a wire barrel or wire ferrule portion which, when crimped onto the wire, is in close electrical and mechanical contact with the stripped end of the wire. It is desirable to provide serrations or grooves on the internal surface of this wire gripping fenrule in order to improve the electrical and mechanical properties of the crimp as dis closed, for example, in the copending application of Kemper M. Hammell, Serial No. 361,205, filed June 12,
- 'It is an object of the present invention to provide an improved electrical connector or terminal which can be manufactured of relatively thinner gauge strip metal than has heretofore been practical.
- a further object of the invention is to provide an improved connector or terminal of relatively thinner gauge stock metal which when crimped onto the end of a. wire exhibits improved electrical and mechwical properties.
- a further object of the invention is to provide a connector providing a wire barrel forming portion having depressions thereon which can be formed by an operation which does not involve changing of the pitch of the strip during a progressive die forming operation.
- FIGURE 1 is aview in elevation of a pair of integrally connected terminals embodying the invention
- FIGURE 2 is a perspective view of one of the terminals shown in FIGURE 1;
- FIGURE 3 is a perspective view of a wire termination showing a terminal of a type of FIGURE 1 crimped onto the end of a wire;
- FIGURE 4 is a greatly enlarged view taken .on a cross section parallel to the axis of the wire barrel forming portion of a terminal of the type shown in FIGURE 1, indicating the microstructure of this terminal prior to its being crimped onto the end of a wire;
- FIGURE 5 is a fragmentary cross sectional view showing the die forming operation in which the corrugations of the terminals of FIGURE 1 are made;
- FIGURE 6 is a cross sectional view of a preferred type of crimped connection in accordance with the present invention.
- FIGURE 7 is a fragmentary view of a crimping die set of the type which will produce a crimped connection of the type shown in FIGURE 3 in crimping a connector of the type shown in FIGURE 1;
- FIGURE 8 is a view similar to FIGURE 6 showing an alternative type of crimped connection in accordance with the invention.
- FIGURE 9 is a view similar to FIGURE 6 showing another type of crimped connection in accordance with the principles of the invention.
- FIGURES 10 and 11 are views of a modified die set similar to the die set of FIGURE 7 usable to crimp connectors of the type shown in FIGURE 1 in accordance with the invention, FIGURE 11 being taken along the lines I-I-II of FIGURE and FIGURE 12 is a perspective view of a progression showing the various stages in the progressive die forming from strip material of strip terminals of the type shown in FIGURE 1.
- the reference numerals 2 generally indicate a commonly known type of wire termination which is advantageously manufactured from a strip material by progressive die forming operations and which is usually supplied in strip form, each connector being joined to the next adjacent connector by means of a slug 4.
- These connectors provide a receptacle portion having a base or floor 6 from which extend a pair of overhanging flanges 7 which are adapted to receive the tab 9 of a complementary terminal thereby to form an electrical connection between two terminated wires.
- Adjoining the receptacle portion 6 is a wire ferruledorming portion 8 of troughlike or U-shaped cross section having upstanding sidewalls 16 which are beveled at their tops as indicated at 20.
- the upstanding sidewalls 16 of this wire ferrule-forming portion are inwardly curled towards each other and bent downwardly to cause them to enter the wire strands as shown at 8 of FIGURE 3, it being preferable to provide bevel 20 in order to facilitate complete downward movement of the edges 26 after these edges meet during the curling operation.
- Adjoining the 'wire ferrule-forming portion 8 is an insulation ferrule-forming portion 10 which comprises upstanding sidewalls 18 which are curved and bent against each other over the end of the insulation 12 of the wire.
- the edges 22 of sidewalls 18 are also beveled in order to facilitate the crimping operation and to promote close contact of the edges when the sidewalls are crimped against each other and downwardly onto the wire as shown at 10'.
- the invention herein disclosed and claimed is applicable to a great number of types of terminals, particularly those formed by progressive die forming operations. It should be realized at this point, however, that the invention is disclosed with particular reference to the type of terminals shown in the drawing for the reason that with this type of terminal the thickness of the stock from which the terminal is to be made presents a particularly vexatious problem.
- the stock should preferably be relatively thin insofar as the receptacle portion 6 is concerned in order that the overhanging flanges 7 will possess the requisite degree of resilience so that the tab 9 will make satisfactory electrical contact with the receptacle and may be connected and disconnected from receptacle 7 repeatedly.
- the crimped connection between the wire gripping ferrule 8 and the stripped end of the wire 12 should be sound and secure from both an electrical and mechanical standpoint and to this end, it is desirable to use a somewhat thicker gauge metal than that which would be the optimum thickness for the receptacle portion 6 from the standpoint of resilience.
- the metal used may be of the optimum gauge (i.e. relatively thin) insofar as the receptacle portion 6 is concerned and notwithstanding this fact the crimped connection 8 will be electrically conductive, mechanically strong and resistant to the deleterious effects such as vibration, corrosion, etc.
- I provide a plurality of outwardly displaced sections or corrugations on the wire ferrule-forming portion 8 which result in the formation of ribs 24 on the external surface of this portion of the terminal and depressions 26 on the internal portion thereof, the preferred manner of imparting this configuration to the wire ferrule-forming portion being shown in FIG- URES 5 and 12.
- FIGURE 12 it can be seen that the terminals are produced from strip material 3 which is formed in a series of dies to carry out the various cutting, blanking and bending ope-rations involved.
- the strip is passed under a die set of the type shown in FIGURE 5 comprising an upper die 28 having projections 32 depending therefrom and a lower die 30 having depressions 34 therein beneath projections 32.
- the dies should be so arranged that when die 28 is bottomed, a slight clearance 36 remains between the strip material and the face of the upper die. As this die 28 bottoms the metal immediately beneath the projections is displaced downwardly and into the depressions 34.
- depressions 34 in die 36 are somewhat broader than projections 32 on die 28.
- the depressions 26 in the uncrimped terminal extend into the ferrule forming portion a greater depth than projections 24 project beyond the ferrule-forming portion.
- projections 24 are broader than depressions 26 so that the thickness of the strip is not materially reduced, if it is reduced at all, by the action of die set 28, 39.
- the strip material 3 will have a direction of rolling indicated by the arrow in FIGURE 12 so that the microstructure of the strip will, as shown schematically in FIGURE 4, consist of elongated and flattened grains extending parallel to the direction of rolling or, in other words, parallel to the longitudinal axis of the strip.
- the grains at each end of the displaced section will exhibit an abrupt downward turn while the microstructure within the displaced section itself will exhibit elongated and flattened grains which are substantially undisturbed and which present substantially the same appearance as the metal on each side of the downwardly displaced section.
- the elements beneath projections 32 are shifted as units downwardly in FIGURE 5 into the depressions 34 and during such shifting or displacing of these elements, the grains in zones on each side of the shifted elements are deformed although the grain structure with in each element is not altered.
- these discontinuities in the grain structure at each end of the displaced metal constitute zones of deformed or cold worked metal circumferentially coextensive with the displaced metal and bordering it on each side thereof.
- zone 38 of cold worked metal indicated by shading on each side of the rib 24, borders the rib and its corresponding depression 26.
- Hardness tests show a higher average hardness in these zones than in adjacent areas as indicated by the hardness data in Table A (below. These data were obtained by measuring the hardness with a Vickers hardness tester (25 gram load) on a longitudinal cross section of a specimen of the type shown in FIGURES 1 through 3 which specimen was of fine grained 70-30 brass, 0 .016 in thickness. Hardness test indentations were made in the areas indicated at a, b, c, d, and e in FIGURE 4, the areas b and d constituting the cold worked zones, the area 0 being within the displaced section, and the areas a and 2 being on each side of the displaced section and remote from the cold worked zone. The values given are averages of hardness tests taken on two different specimens.
- hardness and microstructure are distinguishing characteristics of uncrimped terminals manufactured in accordance with principles of the invention as compared with tenninals provided with depressions or serrations produced ll" manner such as 'by a simple coining operahowever, that the hardness values given in Table A are not absolute values that will be encountered in every instance in which the invention is practiced since the hardness of the strip itself will vary depending upon such factors as its composition, the degree to which it has been cold worked during rolling and the heat treatment, if any, which it had previously received. Also the increase in hardness at the cold worked zones will depend upon similar factors. The data of Table A clearly show, however, that cold work has been performed in the localized zones on each side of the displaced section of metal.
- the depressions 26 and ribs 24 are produced, by what I call, for want of a more exacting term, a combination of a coining operation and a drawing operation.
- the die forming operation of FIGURE 5 is a drawing operation insofar as the upper die 28 functions as a drawing punch and it is a coining operation in that the metal is forced into the depressions for relieved portions 3 4 of lower die 30 to permit a restricted or limited amount of metal displacement.
- the sizes of the punches 3-2 and the sizes of the depressions 34 are chosen such that the tendency toward shrinkage is offset by the tendency toward extrusion brought about by the coining aspect of the operation.
- Terminals manufactured in accordance with the invention can be crimped in one of several ways as shown in FIGURES 6, 8, and 9 to produce crimped connections having somewhat differing appearances and characteristics, all of which types of crimps ofifer decided advantages over the prior FIGURE 6 shows a preferred type of crimped connection which is obtained if a terminal of the type shown in FIGURE 2 is crimped in a die set of the type shown in FIGURE 7.
- This die set comprises an upper die .40 having slanted sidewalls 41 which meet at a cusp 43.
- a lower die 42 is adapted to receive the terminals as shown in phantom in FIGURE 7 so that as upper die 40 approaches lower die 42 the upstanding sidewalls 16 of the terminal are curled inwardly towards each other and then bent downwardly and forced within and among the wire strands.
- the crimping force is concentrated upon the outstanding ribs 24 on the external surface of the terminal as indicated by the arrow in FIGURE 4. This concentrated force pushes the displaced sections of metal at least partially, and usually almost entirely, hack into their original positions so that they are corplanar or nearly co-planar with the portions of the ferrules separating the displaced metal sections.
- FIGURE 6 after crimping, shallow notches remain at each side of the sections of metal which had, in the forming and crimping operations, been displaced outwardly and inwardly.
- pression 26 assumes a somewhat arcuat'e, inwardly convex form while the bands of metal separating the displaced metal 24' are outwardly convex as indicated by the convex surfaces 44 and the surface 46.
- These arcuate surfaces are probably formed by the effect of the concentrated crimping force, as indicated by the arrow in FIG- URE 4. It should be mentioned, however, that arcuate surfaces 44, 46 mayor may not :be produced in the practice of the invention, depending upon the extent to which the terminal is crimped.
- FIGURE ,6 shows the ideal .case, the arcuate surfaces 44 and 46 being slightly exaggerated in the interest of clarity of disclosure. 1
- FIGURES 8 and 9 show alternative types of crimped connections in cross section which can be produced with terminals of the types. shown in FIGURE 1, but with slightly modified dies as shown in FIGURES 10 and 11.
- the reference numeral 40' indicates an upper die similar to die 40'
- 42 indicates a lower die or anvil corresponding to anvil 42 of FIGURE 7.
- Die set 40', 42' differs from the die set of FIGURE 7 in that there are provided a plurality of depressions 48", 50 on the upper die and lower die respectively which receive the ribs 24 of the terminal project during the crimping operation.
- a crimp of the general type shown in FIGURE 8 is produced.
- the ribs 24 project upwardly above the surface of the ferrule substantially the same distance as do the ribs 24 of the uncrimped terminal.
- the crimp is made with depressions 48, 50 of about the same depth as the height of the ribs 24, the bands of metal separating the displaced metal sections do not tend to assume an arcuate cross section.
- the crimp of FIGURE 8 of course provides keying or locking of the strands of the wire 14 as does the crimp of FIGURE 6.
- a crimp of this type will be produced if the depressions 48, 50 are made somewhat deeper than the height of the ribs 24 on the terminal barrel. Where this is the case, the crimping operation will result in some small amount of flow of metal in the vicinity of the ribs and the depressions, and as a result these ribs and depressions 24", 26, will be accentuated somewhat as a result of the crimping operation. This phenomenon enhances the keying effect between the conductor 14 and the terminal and in this respect it improves the quality of the connection. Again, as in FIGURE 8 the crimp of FIGURE 9 does not provide the arcuate bands as shown in FIGURE 6.
- the improved tensile or pull out strength afforded by the practice of the invention is shown by the results of a series of tests conducted with terminated wires of the type shown in FIGURE 3. The tests were conducted with three different wire sizes and one size connector in two different thicknesses. In the case of each wire size, pull out tests were conducted on connections between the wire and a connector of 0.018" stock which connector did not embody the invention, between the wire and a connector of 0.016" stock which did not embody the invention and between the wire and a connector 1 Readings exceeded scale of 110 lbs.
- zones of hardened metal 38 which border each set of depressions and ribs contribute to the strength of the crimped connection.
- the relatively severely cold worked metal in these zones has less tendency to spring back after the crimping operation and would tend to take the set of the crimp more permanently than would metal which has not been cold worked by displacement.
- These zones 38 thus constitute bands of hardened and stiffened metal which reenforce the crimp.
- the strength of the crimp is enhanced by virtue of the slightly arcuate configuration of the bands 44.
- Such bands of arcuate cross section would offer a greater resistance to being sprung apart or opened up than would a band having non-arcuate cross section.
- the ribs 24" and 24 of the embodiments of FIGURES 8 and 9 would tend to reenforce the ferrules in the same manner that the corrugations commonly provided on metallic drums reenforce and strengthen such drums.
- the ribs in the terminals as disclosed in my invention might be provided for instance on the insulation ferrule-forming portion 10 of the terminal as well as on the wire ferrule-forming portion 8.
- Such provision of the corrugations to the insulation-forming portion would have a beneficial effect of strengthening the union between this portion of the terminal and the insulataion 12 of the conductor.
- the invention is not restricted to crimped connections of the type shown in the drawing but is applicable to a variety of crimped connections known to the art.
- An electrical connection comprising a sheet metal ferrule crimped about a conductor wire, the ferrule having at least one transversely displaced section to form a transversely extending groove and rib on the interior and exterior surfaces thereof respectively, said riband groove being of generally similar trapezoidal shape in cross-section, said section being displaced by cold-working to harden the ferrule metal between each side of the rib and the corresponding side of the groove, the ferrule being cold-forged into tight compression about the conductor wire with portions of the conductor Wire projecting into said groove and with the rib being pressed back into substantially flush relation with the adjacent outer surface of the ferrule.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
- Multi-Conductor Connections (AREA)
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL111930D NL111930C (enExample) | 1956-08-16 | ||
| NL219881D NL219881A (enExample) | 1956-08-16 | ||
| BE560076D BE560076A (enExample) | 1956-08-16 | ||
| US604544A US3112150A (en) | 1956-08-16 | 1956-08-16 | Electrical connections |
| DEA27706A DE1104584B (de) | 1956-08-16 | 1957-08-13 | Verfahren zum Herstellen eines elektrischen Kabelschuhes, der Kabelschuh selbst und Verbindung mittels dieses Kabelschuhes |
| DEA10454U DE1825550U (de) | 1956-08-16 | 1957-08-13 | Elektrischer kabelschuh. |
| CH4947257A CH365423A (de) | 1956-08-16 | 1957-08-15 | Verfahren zur Herstellung eines elektrischen Anschlussstückes und nach dem Verfahren hergestelltes, elektrisches Anschlussstück |
| FR1181494D FR1181494A (fr) | 1956-08-16 | 1957-08-16 | Perfectionnements aux connecteurs électriques et aux connexions électriques ainsi qu'aux procédés d'exécution de ces connexions |
| GB25957/57A GB813160A (en) | 1956-08-16 | 1957-08-16 | Improvements in electrical connectors and electrical connections and methods of making the connections |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US604544A US3112150A (en) | 1956-08-16 | 1956-08-16 | Electrical connections |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3112150A true US3112150A (en) | 1963-11-26 |
Family
ID=24420021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US604544A Expired - Lifetime US3112150A (en) | 1956-08-16 | 1956-08-16 | Electrical connections |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3112150A (enExample) |
| BE (1) | BE560076A (enExample) |
| CH (1) | CH365423A (enExample) |
| DE (2) | DE1825550U (enExample) |
| FR (1) | FR1181494A (enExample) |
| GB (1) | GB813160A (enExample) |
| NL (2) | NL111930C (enExample) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3332054A (en) * | 1964-07-27 | 1967-07-18 | Thomas & Betts Corp | Electrical terminal with v-shaped barrel |
| US3522577A (en) * | 1968-05-31 | 1970-08-04 | Alfred M Zak | Electrical connector and method and apparatus for making same |
| US3533055A (en) * | 1968-03-14 | 1970-10-06 | Alfred M Zak | Electrical connector and method and apparatus for making same |
| US3670293A (en) * | 1970-08-20 | 1972-06-13 | Amp Inc | Shielded wire connectors |
| FR2214181A1 (enExample) * | 1973-01-12 | 1974-08-09 | Labinal | |
| US4136922A (en) * | 1975-07-23 | 1979-01-30 | Essex International, Inc. | Ignition cable terminals |
| US4326096A (en) * | 1980-02-20 | 1982-04-20 | Hobson Bros., Inc. | Electrical connector |
| US4399371A (en) * | 1978-07-31 | 1983-08-16 | Dual-Lite, Inc. | Modular wiring systems |
| US4555799A (en) * | 1983-10-24 | 1985-11-26 | Sumitomo Electric Industries, Ltd. | Method for inspecting crimp bonded terminals |
| US5356318A (en) * | 1993-10-14 | 1994-10-18 | Molex Incorporated | Conductor crimping electrical terminal |
| US6410853B1 (en) * | 2001-01-04 | 2002-06-25 | Emerson Electric Co. | Electrical connection and method of attaching an electric conductor to an electrically conductive terminal via a telescoping sleeve |
| US20060003630A1 (en) * | 2004-06-30 | 2006-01-05 | Fargo Vincent P | Electrical connector and sleeve apparatus and method of assembly |
| WO2010016882A1 (en) * | 2008-08-06 | 2010-02-11 | Bead Industries, Inc. | Method to continuously form surface mount flanged pins |
| US20190140367A1 (en) * | 2016-04-25 | 2019-05-09 | Erni Production Gmbh & Co. Kg | Electrical crimp contact |
| JP2020064819A (ja) * | 2018-10-19 | 2020-04-23 | 矢崎総業株式会社 | 端子、及び、端子付き電線 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2574994B1 (fr) * | 1984-12-14 | 1987-02-20 | Electricite De France | Dispositif permettant la realisation d'un raccord de jonction pour conducteurs electriques |
| DE69411431T2 (de) * | 1993-04-05 | 1998-11-05 | Ford Werke Ag | Verpresste Leiterklemme |
| DE102006045567A1 (de) * | 2006-09-25 | 2008-04-24 | Tyco Electronics Amp Gmbh | Crimpstabilisierung |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1262155A (en) * | 1916-07-15 | 1918-04-09 | Otto Zimmerman | Terminal connector for electrical conductors. |
| US1823158A (en) * | 1929-05-15 | 1931-09-15 | Clark Equipment Co | Axle and method of making the same |
| US2130424A (en) * | 1936-06-29 | 1938-09-20 | Albert T Otto & Sons Inc | Attachment plug |
| US2327650A (en) * | 1940-01-04 | 1943-08-24 | Nat Telephone Supply Co | Wire connecting sleeve |
| US2433358A (en) * | 1941-10-08 | 1947-12-30 | Waldo L Garberding | Separable electrical connector |
| US2452932A (en) * | 1944-04-10 | 1948-11-02 | Aircraft Marine Prod Inc | Electrical connector |
| US2552109A (en) * | 1945-01-16 | 1951-05-08 | Nahman Gustave | Method of fabricating a generally cylindrical magnetic structure |
| US2596528A (en) * | 1949-10-25 | 1952-05-13 | Aircraft Marine Prod Inc | Electrical connector having coaxial barrels of different diameters |
| US2639754A (en) * | 1945-03-03 | 1953-05-26 | Aircraft Marine Prod Inc | Tool for crimping ferrules |
| US2674725A (en) * | 1949-06-28 | 1954-04-06 | Aircraft Marine Prod Inc | Electrical connector |
| US2685127A (en) * | 1949-06-02 | 1954-08-03 | Star Fastener Inc | Method of producing slide fasteners |
| US2716744A (en) * | 1952-04-01 | 1955-08-30 | Bendix Aviat Corp | Socket contact for electrical connector |
| US2716741A (en) * | 1951-06-29 | 1955-08-30 | Continental Copper & Steel Ind | Strain relief device |
| US2747170A (en) * | 1954-07-16 | 1956-05-22 | Kent Mfg Corp | Connector member with resilient center |
| US2748452A (en) * | 1953-05-07 | 1956-06-05 | Aircraft Marine Prod Inc | Methods and blanks for making connectors |
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|---|---|---|---|---|
| US2084109A (en) * | 1935-10-08 | 1937-06-15 | Ribble | Lock washer |
| US2379567A (en) * | 1941-12-03 | 1945-07-03 | Aircraft Marine Prod Inc | Electrical connector |
| US2697213A (en) * | 1952-05-31 | 1954-12-14 | Patton Macguyer Co | Solderless electric terminal |
-
0
- NL NL219881D patent/NL219881A/xx unknown
- BE BE560076D patent/BE560076A/xx unknown
- NL NL111930D patent/NL111930C/xx active
-
1956
- 1956-08-16 US US604544A patent/US3112150A/en not_active Expired - Lifetime
-
1957
- 1957-08-13 DE DEA10454U patent/DE1825550U/de not_active Expired
- 1957-08-13 DE DEA27706A patent/DE1104584B/de active Pending
- 1957-08-15 CH CH4947257A patent/CH365423A/de unknown
- 1957-08-16 FR FR1181494D patent/FR1181494A/fr not_active Expired
- 1957-08-16 GB GB25957/57A patent/GB813160A/en not_active Expired
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1262155A (en) * | 1916-07-15 | 1918-04-09 | Otto Zimmerman | Terminal connector for electrical conductors. |
| US1823158A (en) * | 1929-05-15 | 1931-09-15 | Clark Equipment Co | Axle and method of making the same |
| US2130424A (en) * | 1936-06-29 | 1938-09-20 | Albert T Otto & Sons Inc | Attachment plug |
| US2327650A (en) * | 1940-01-04 | 1943-08-24 | Nat Telephone Supply Co | Wire connecting sleeve |
| US2433358A (en) * | 1941-10-08 | 1947-12-30 | Waldo L Garberding | Separable electrical connector |
| US2452932A (en) * | 1944-04-10 | 1948-11-02 | Aircraft Marine Prod Inc | Electrical connector |
| US2552109A (en) * | 1945-01-16 | 1951-05-08 | Nahman Gustave | Method of fabricating a generally cylindrical magnetic structure |
| US2639754A (en) * | 1945-03-03 | 1953-05-26 | Aircraft Marine Prod Inc | Tool for crimping ferrules |
| US2685127A (en) * | 1949-06-02 | 1954-08-03 | Star Fastener Inc | Method of producing slide fasteners |
| US2674725A (en) * | 1949-06-28 | 1954-04-06 | Aircraft Marine Prod Inc | Electrical connector |
| US2596528A (en) * | 1949-10-25 | 1952-05-13 | Aircraft Marine Prod Inc | Electrical connector having coaxial barrels of different diameters |
| US2716741A (en) * | 1951-06-29 | 1955-08-30 | Continental Copper & Steel Ind | Strain relief device |
| US2716744A (en) * | 1952-04-01 | 1955-08-30 | Bendix Aviat Corp | Socket contact for electrical connector |
| US2748452A (en) * | 1953-05-07 | 1956-06-05 | Aircraft Marine Prod Inc | Methods and blanks for making connectors |
| US2747170A (en) * | 1954-07-16 | 1956-05-22 | Kent Mfg Corp | Connector member with resilient center |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3332054A (en) * | 1964-07-27 | 1967-07-18 | Thomas & Betts Corp | Electrical terminal with v-shaped barrel |
| US3533055A (en) * | 1968-03-14 | 1970-10-06 | Alfred M Zak | Electrical connector and method and apparatus for making same |
| US3522577A (en) * | 1968-05-31 | 1970-08-04 | Alfred M Zak | Electrical connector and method and apparatus for making same |
| US3670293A (en) * | 1970-08-20 | 1972-06-13 | Amp Inc | Shielded wire connectors |
| FR2214181A1 (enExample) * | 1973-01-12 | 1974-08-09 | Labinal | |
| US4136922A (en) * | 1975-07-23 | 1979-01-30 | Essex International, Inc. | Ignition cable terminals |
| US4399371A (en) * | 1978-07-31 | 1983-08-16 | Dual-Lite, Inc. | Modular wiring systems |
| US4326096A (en) * | 1980-02-20 | 1982-04-20 | Hobson Bros., Inc. | Electrical connector |
| US4555799A (en) * | 1983-10-24 | 1985-11-26 | Sumitomo Electric Industries, Ltd. | Method for inspecting crimp bonded terminals |
| US5356318A (en) * | 1993-10-14 | 1994-10-18 | Molex Incorporated | Conductor crimping electrical terminal |
| US6410853B1 (en) * | 2001-01-04 | 2002-06-25 | Emerson Electric Co. | Electrical connection and method of attaching an electric conductor to an electrically conductive terminal via a telescoping sleeve |
| US20030101586A1 (en) * | 2001-01-04 | 2003-06-05 | Emerson Electric Co. | Method of attaching an electric conductor to an electrically conductive terminal via a telescoping sleeve |
| US7007381B2 (en) | 2001-01-04 | 2006-03-07 | Emerson Electric Co. | Method of attaching an electric conductor to an electrically conductive terminal via a telescoping sleeve |
| US20060003630A1 (en) * | 2004-06-30 | 2006-01-05 | Fargo Vincent P | Electrical connector and sleeve apparatus and method of assembly |
| US7066774B2 (en) | 2004-06-30 | 2006-06-27 | Emerson Electric Co. | Electrical connector and sleeve apparatus and method of assembly |
| WO2010016882A1 (en) * | 2008-08-06 | 2010-02-11 | Bead Industries, Inc. | Method to continuously form surface mount flanged pins |
| US20100031728A1 (en) * | 2008-08-06 | 2010-02-11 | Balazsi James W | Method to Continuously Form Surface Mount Flanged Pins |
| US8087281B2 (en) | 2008-08-06 | 2012-01-03 | Bead Industries, Inc. | Method to continuously form surface mount flanged pins |
| US20190140367A1 (en) * | 2016-04-25 | 2019-05-09 | Erni Production Gmbh & Co. Kg | Electrical crimp contact |
| US10566707B2 (en) * | 2016-04-25 | 2020-02-18 | Erni Production Gmbh & Co. Kg | Electrical crimp contact |
| JP2020064819A (ja) * | 2018-10-19 | 2020-04-23 | 矢崎総業株式会社 | 端子、及び、端子付き電線 |
Also Published As
| Publication number | Publication date |
|---|---|
| CH365423A (de) | 1962-11-15 |
| FR1181494A (fr) | 1959-06-16 |
| BE560076A (enExample) | |
| NL219881A (enExample) | |
| NL111930C (enExample) | |
| DE1825550U (de) | 1961-01-26 |
| GB813160A (en) | 1959-05-13 |
| DE1104584B (de) | 1961-04-13 |
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