US2142818A - Electrical connecter - Google Patents

Electrical connecter Download PDF

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Publication number
US2142818A
US2142818A US47027A US4702735A US2142818A US 2142818 A US2142818 A US 2142818A US 47027 A US47027 A US 47027A US 4702735 A US4702735 A US 4702735A US 2142818 A US2142818 A US 2142818A
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United States
Prior art keywords
electrical
wire
contact
shaped
sheet metal
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Expired - Lifetime
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US47027A
Inventor
Gunnard W Jacobson
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Illinois Tool Works Inc
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Illinois Tool Works Inc
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Priority to US47027A priority Critical patent/US2142818A/en
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Publication of US2142818A publication Critical patent/US2142818A/en
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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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/22—Contacts for co-operating by abutting
    • 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
    • H01R2101/00—One pole

Definitions

  • This invention relates generally to electrical connecters or terminals andtor methods o! making same, and more particularly to electrical terminals formed from sheet metal.
  • the invention contemplates a simple and practical method of producing electrical terminals having enlarged or head extremities by forming a blank from conductive sheet material and then shaping this blank to the desired form.
  • the invention contemplates an electrical connecter or terminal in which the head at the free extremity thereof is presented by a cup shaped section of thin concluetive material as distinguished from solid head structures heretofore employed.
  • Figure l is a side elevational view of an electrical connecter or terminal which'is representativeof one embodiment of ⁇ my invention, the same being disclosed in operative association with an electrical conductory or wire; f
  • Figure 2 ⁇ is a plan View of the device as shown in Figure 1; i
  • Figure 3 is a central longitudinal sectional view of the device taken substantially alongk the line
  • Figure 4 is a perspective view of the electrical connecter or terminal prior toits operative association with an electrical conductor;
  • Figure 5 is an end elevational view as viewed from the right of Figure 4.
  • Figure 6 is a transverse sectional view taken substantially along the line 6-6 of Figure 1;
  • Figure 7 is a transverse sectional view taken substantially along the line 'I--l of Figure 1;
  • Figure 8 discloses the blank from which the electrical connecter or terminal of the present invention may be formed.
  • my invention contemplates an electrical connecter or terminal as indicated generally by the numeral III.
  • the invention also contemplates novel methods'whereby the connecter I0 may be produced from sheet or thin conductive material. 5
  • One method contemplated by the present invention whereby my improved electrical terminal may be produced includes the stepv of forming from a sheet of iiat stock a blank Ia as shown in Figure 8; This blank presents three con- 10 nected sections indicated generally by the letter v A, the letter B, and the letter C.
  • the sections A and B are bent into U-shaped form, the larger section A 15 serving to receive the insulated portion I2 ofa' iiexible conductor I4 and the smaller section B ⁇ serving to receive the electrical conductor proper I6 as clearlyl illustrated'in Figures 1 to 3 constitu1ve.
  • the section C which is connected to the section B through the agency of a neck 'portion I8,
  • the head or button 20 is cupped so as to present a head or button 20, the diameter of the head or button 20 being larger than the section B, and the section B being 25 positioned substantially co-axial with said head.
  • the tongue y22 on one free i extremity of the section A coacting with "a com-*40' panion V-shapedrecess 24 provided inthe other free extremity ofthe section Aj and yaton'gue' -26 ⁇ on the section B coacting similarly with a recess 28.
  • the bent together portions of the sections A and B are positively secured 46 against relative axial displacement.
  • the tongues 22 and 26 may be urged slightly inwardly to more eectively establish frictional contact or connection with the iiexible conductor.
  • the hollow semi-spherical or cup-shaped head 50 20 functions equally as well as a solid head or button in establishing electrical contact. It is not necessary for a clear understanding of the present invention to disclose or describe the electi'lcal socket or terminal receiving device with 55 been employed. Furthermore, the ease which my improved electrical connecter may be used. It is sumcient to state that the simpliiied sheet metal device contemplated by the present invention is equally as efficient when in use as solid electrical terminals which have heretofore with which my improved electrical terminal may be made by punches and dies from a small piece of ilat stock greatly reduces the cost of manufacture. While I have disclosed one specific embodiment oi the invention, it will be apparent that other modifications and changes may be made without departing from the spirit and, scope of the appended claims.
  • An electrical terminal comprising a member bent to form an intermediate portion adapted to receive a wire, an end portion adapted to receive insulation about the wire and a dome.
  • said contact portion being arranged substantially coaxially with respect to said wire engaging portion and being formed o! sheet metal so that the face opposite said dome-shaped conilguration is concave, the contact having the concave i'ace presented toward the said intermediate portion, said intermediate and end portions being bendable about the wire and insulation to clamp the same therein, and an integrally formed, relatively narrow strip oi sheet metal extending from an edge of the said intermediate portion to a point adjacent the periphery of the contact porktion whereby to provide an integral, unitary member readily capable of being cut and formed from sheet metal.
  • An electrical terminal comprising a ⁇ sheet metal member bent to form an intermediate portion adapted to receive a wire and to extend substantially axially of the wire, an end portion adapted to receive insulation about the wire and a contact portion at the opposite end comprising a sheet metal member distorted outwardly to form a substantially hemispherical contact member, one face of said sheet contact member being concave, said hemispherical contact member being substantially co-axial with the longitudinal axes of said intermediate portion and said end portion and having the concave face thereof presented toward the said end portion, said intermediate portion and end portion being bendable about the wire and insulation to clamp the same therein, and an integrally formed, relatively narrow strip of sheet metal extending from an edge oi the said intermediate portion to a point adjacent the periphery of the contact member whereby to provide an integral, unitary electrical terminal member readily capable of being cut and formed from sheet metal.
  • An electrical terminal comprising a sheet metal member bent to form a substantially U- shaped intermediate portion adapted to receive a wire, and a substantially U-shaped end portion adapted to receive insulation about the wire and a contact at the opposite end ci' said member, said contact being i'ormed outwardly to provide a convex, dome-shaped connguration, the contact being of sheet metal with one tace thereof convex.
  • said dome-shaped contact being arranged substantially co-axially ot the longitudinal axis of said U-shaped portions and with the concave face presented toward the U-shaped portions and the arms of said U-shaped portions being bendable about the wire and insulation to clamp the same therein.
  • An electrical terminal comprising a onepiece sheet metal member bent to form a substantially U-shaped intermediate portion adapted to receive a wire, a substantially U-shaped end portion adapted to receive insulation about a wire.
  • one leg ci each oi' said U-shaped portions having a projection and the otherl leg oi' each U-shaped portion having a complementary recess to receive said projection, and a contact at' the opposite end of said member, saidcontact being formed outwardly to provide a convex configuration, the contact being oisheet metal and having the interior face thereof of concave configuration, said contact being mounted substantially co-axially of the longitudinal axes of said U-shaped portions and being arranged with its convex face presented away from said U-shaped portions, the arms of said Ushaped portions being bendable about the wire 4and insulation to clamp the same therein and said projections engaging in said complementary recesses to inter ⁇ lock the arms of said U-shaped portions against relative1 axial movement.
  • An electrical terminal formed oi.' an integral piece of sheet metal having a longitudinally extending portion bent so as to engage about the end of a wire, and a dome-shaped contact member at one end of said longitudinally extending wire-engaging portion, said contact member comprising a sheet metal piece distorted outwardly to provide a substantially dome-like convex contact face, the opposite face oi said sheet member being concave, said dome-shaped contact member being arranged substantially coaxially of the longitudinal axis of said longitudinally vextending wire-engaging portion and having its concave face presented toward said longitudinally extending member, the longitudinally extending portion being bendable about the wire to clamp the same thereon, and an integrally i'ormed, relatively narrow strip ci sheet metal extending irom an edge of the said longitudinally extending portion to a point adjacent the periphery oi' the contact member whereby to provide an integral unitary terminal member capable o! being readily cut and formed from sheet metal.

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  • Manufacturing Of Electrical Connectors (AREA)

Description

1 im w N m :a x
www GB EWS,
w w w GHF Jan. 3, 1939.
Patented Jan. 3, 1939 Gunnar-d W. Jacobson, Chicago, Ill.,v asslgnor Illinois Tool Works, Chicago, Ill., a corporation of Illinois Application October 28,- 1935, `Serial No.'47,027
Claims.
This invention relates generally to electrical connecters or terminals andtor methods o! making same, and more particularly to electrical terminals formed from sheet metal.
5 c It has heretofore been the practice in the manufacture of electrical terminals requiring a button or head at their outer extremities, to produce such parts from solid round stock as distinguished from flat or sheet stock. It is one of the important objects ofl my invention to materially reduce the cost of manufacturing such type of electrical terminals and to this end I propose to manufacture them from iiat sheets of conductive material. f
l5 More specically, the invention contemplates a simple and practical method of producing electrical terminals having enlarged or head extremities by forming a blank from conductive sheet material and then shaping this blank to the desired form. y
Still more specically, the invention contemplates an electrical connecter or terminal in which the head at the free extremity thereof is presented by a cup shaped section of thin concluetive material as distinguished from solid head structures heretofore employed.
The foregoing and numerous other objects will be more apparent from the following detailed description yWhen considered in connection with the accompanying drawing wherein:
Figure lis a side elevational view of an electrical connecter or terminal which'is representativeof one embodiment of `my invention, the same being disclosed in operative association with an electrical conductory or wire; f
Figure 2` is a plan View of the device as shown in Figure 1; i
Figure 3 is a central longitudinal sectional view of the device taken substantially alongk the line Figure 4 is a perspective view of the electrical connecter or terminal prior toits operative association with an electrical conductor;
Figure 5 is an end elevational view as viewed from the right of Figure 4;
Figure 6 is a transverse sectional view taken substantially along the line 6-6 of Figure 1;
Figure 7 is a transverse sectional view taken substantially along the line 'I--l of Figure 1; and
Figure 8 discloses the blank from which the electrical connecter or terminal of the present invention may be formed.
Referring now to the drawing wherein like numerals have been employed to designate similar parts throughout the variOU Views, it will be (Cl. 1734-269) y y seen that my invention contemplates an electrical connecter or terminal as indicated generally by the numeral III. The invention also contemplates novel methods'whereby the connecter I0 may be produced from sheet or thin conductive material. 5 One method contemplated by the present invention whereby my improved electrical terminal may be produced includes the stepv of forming from a sheet of iiat stock a blank Ia as shown in Figure 8; This blank presents three con- 10 nected sections indicated generally by the letter v A, the letter B, and the letter C.
In forming or shaping the electrical terminal I0 from theblank Illa, the sections A and B are bent into U-shaped form, the larger section A 15 serving to receive the insulated portion I2 ofa' iiexible conductor I4 and the smaller section B` serving to receive the electrical conductor proper I6 as clearlyl illustrated'in Figures 1 to 3 inclus1ve.
The section C, which is connected to the section B through the agency of a neck 'portion I8,
is cupped so as to present a head or button 20, the diameter of the head or button 20 being larger than the section B, and the section B being 25 positioned substantially co-axial with said head.
When the electrical connecter or terminal is to be applied vto the iiexible conductor` I4, it is only necessary to place the conductor proper I8 Within the section B and the insulated portion 30 I2 within the section A as clearly shown in Figure 3 and then bend the free extremities of the sections toward each other so as to produce cylindrical conductor gripping parts. To securefthese free extremities of the U-'shaped sections A and 35 B against relative axial movement when clamped against the flexible conductonI provide'each of the sections with complementary tongue and groove configurations, the tongue y22 on one free i extremity of the section A coacting with "a com-*40' panion V-shapedrecess 24 provided inthe other free extremity ofthe section Aj and yaton'gue' -26` on the section B coacting similarly with a recess 28. In this manner the bent together portions of the sections A and B are positively secured 46 against relative axial displacement. If it is desired, the tongues 22 and 26 may be urged slightly inwardly to more eectively establish frictional contact or connection with the iiexible conductor.
The hollow semi-spherical or cup-shaped head 50 20 functions equally as well as a solid head or button in establishing electrical contact. It is not necessary for a clear understanding of the present invention to disclose or describe the electi'lcal socket or terminal receiving device with 55 been employed. Furthermore, the ease which my improved electrical connecter may be used. It is sumcient to state that the simpliiied sheet metal device contemplated by the present invention is equally as efficient when in use as solid electrical terminals which have heretofore with which my improved electrical terminal may be made by punches and dies from a small piece of ilat stock greatly reduces the cost of manufacture. While I have disclosed one specific embodiment oi the invention, it will be apparent that other modifications and changes may be made without departing from the spirit and, scope of the appended claims.
Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:
1. An electrical terminal comprising a member bent to form an intermediate portion adapted to receive a wire, an end portion adapted to receive insulation about the wire and a dome.
shaped contact portnn at the opposite end, said contact portion being arranged substantially coaxially with respect to said wire engaging portion and being formed o! sheet metal so that the face opposite said dome-shaped conilguration is concave, the contact having the concave i'ace presented toward the said intermediate portion, said intermediate and end portions being bendable about the wire and insulation to clamp the same therein, and an integrally formed, relatively narrow strip oi sheet metal extending from an edge of the said intermediate portion to a point adjacent the periphery of the contact porktion whereby to provide an integral, unitary member readily capable of being cut and formed from sheet metal. l
2. An electrical terminal comprising a `sheet metal member bent to form an intermediate portion adapted to receive a wire and to extend substantially axially of the wire, an end portion adapted to receive insulation about the wire and a contact portion at the opposite end comprising a sheet metal member distorted outwardly to form a substantially hemispherical contact member, one face of said sheet contact member being concave, said hemispherical contact member being substantially co-axial with the longitudinal axes of said intermediate portion and said end portion and having the concave face thereof presented toward the said end portion, said intermediate portion and end portion being bendable about the wire and insulation to clamp the same therein, and an integrally formed, relatively narrow strip of sheet metal extending from an edge oi the said intermediate portion to a point adjacent the periphery of the contact member whereby to provide an integral, unitary electrical terminal member readily capable of being cut and formed from sheet metal.
3. An electrical terminal comprising a sheet metal member bent to form a substantially U- shaped intermediate portion adapted to receive a wire, and a substantially U-shaped end portion adapted to receive insulation about the wire and a contact at the opposite end ci' said member, said contact being i'ormed outwardly to provide a convex, dome-shaped connguration, the contact being of sheet metal with one tace thereof convex. said dome-shaped contact being arranged substantially co-axially ot the longitudinal axis of said U-shaped portions and with the concave face presented toward the U-shaped portions and the arms of said U-shaped portions being bendable about the wire and insulation to clamp the same therein.
4. An electrical terminal comprising a onepiece sheet metal member bent to form a substantially U-shaped intermediate portion adapted to receive a wire, a substantially U-shaped end portion adapted to receive insulation about a wire. one leg ci each oi' said U-shaped portions having a projection and the otherl leg oi' each U-shaped portion having a complementary recess to receive said projection, and a contact at' the opposite end of said member, saidcontact being formed outwardly to provide a convex configuration, the contact being oisheet metal and having the interior face thereof of concave configuration, said contact being mounted substantially co-axially of the longitudinal axes of said U-shaped portions and being arranged with its convex face presented away from said U-shaped portions, the arms of said Ushaped portions being bendable about the wire 4and insulation to clamp the same therein and said projections engaging in said complementary recesses to inter` lock the arms of said U-shaped portions against relative1 axial movement.
5. An electrical terminal formed oi.' an integral piece of sheet metal having a longitudinally extending portion bent so as to engage about the end of a wire, and a dome-shaped contact member at one end of said longitudinally extending wire-engaging portion, said contact member comprising a sheet metal piece distorted outwardly to provide a substantially dome-like convex contact face, the opposite face oi said sheet member being concave, said dome-shaped contact member being arranged substantially coaxially of the longitudinal axis of said longitudinally vextending wire-engaging portion and having its concave face presented toward said longitudinally extending member, the longitudinally extending portion being bendable about the wire to clamp the same thereon, and an integrally i'ormed, relatively narrow strip ci sheet metal extending irom an edge of the said longitudinally extending portion to a point adjacent the periphery oi' the contact member whereby to provide an integral unitary terminal member capable o! being readily cut and formed from sheet metal.
GUNNARD W. JACOBSON.
US47027A 1935-10-28 1935-10-28 Electrical connecter Expired - Lifetime US2142818A (en)

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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2452932A (en) * 1944-04-10 1948-11-02 Aircraft Marine Prod Inc Electrical connector
US2564874A (en) * 1947-04-04 1951-08-21 Artos Engineering Co Terminal wiring method and apparatus
US2586471A (en) * 1944-06-12 1952-02-19 Burndy Engineering Co Inc Compressible brazed connector
US2596528A (en) * 1949-10-25 1952-05-13 Aircraft Marine Prod Inc Electrical connector having coaxial barrels of different diameters
US2606264A (en) * 1949-11-10 1952-08-05 Briggs & Stratton Corp Terminal and contact construction for electric switches
US2659871A (en) * 1949-10-03 1953-11-17 Aircraft Marine Prod Inc Electrical connector strip having laterally displaced strip feeding edges
US2779007A (en) * 1951-12-21 1957-01-22 Ibm Plugboard contactor
US2892178A (en) * 1956-10-26 1959-06-23 Amp Inc Button contact
US2903670A (en) * 1954-03-24 1959-09-08 Amp Inc Plug terminal
US2911616A (en) * 1957-06-13 1959-11-03 Raymond L Townsend Strain relief for stranded cable connection
US2961634A (en) * 1958-06-09 1960-11-22 Essex Wire Corp Sheet metal contact
US3404368A (en) * 1965-08-04 1968-10-01 Amp Inc Electrical connector of the plug or socket variety
US3412366A (en) * 1967-04-10 1968-11-19 Ind Electronic Hardware Corp Anode connector for kinescope
US3634818A (en) * 1968-09-26 1972-01-11 Molex Inc Female electrical terminal
US5302146A (en) * 1991-10-14 1994-04-12 Yazaki Corporation Crimp-style terminal
US5338233A (en) * 1992-04-08 1994-08-16 Yazaki Corporation Structure for electrically connecting a terminal and a wire
US20190296459A1 (en) * 2018-03-23 2019-09-26 Hirose Electric Co., Ltd. Coaxial cable connector provided with a housing having a pair of crimping pieces
US20200076179A1 (en) * 2018-08-30 2020-03-05 Rosenberger Hochfrequenztechnik Gmbh & Co. Kg Multi-core cable

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2452932A (en) * 1944-04-10 1948-11-02 Aircraft Marine Prod Inc Electrical connector
US2586471A (en) * 1944-06-12 1952-02-19 Burndy Engineering Co Inc Compressible brazed connector
US2564874A (en) * 1947-04-04 1951-08-21 Artos Engineering Co Terminal wiring method and apparatus
US2659871A (en) * 1949-10-03 1953-11-17 Aircraft Marine Prod Inc Electrical connector strip having laterally displaced strip feeding edges
US2596528A (en) * 1949-10-25 1952-05-13 Aircraft Marine Prod Inc Electrical connector having coaxial barrels of different diameters
US2606264A (en) * 1949-11-10 1952-08-05 Briggs & Stratton Corp Terminal and contact construction for electric switches
US2779007A (en) * 1951-12-21 1957-01-22 Ibm Plugboard contactor
US2903670A (en) * 1954-03-24 1959-09-08 Amp Inc Plug terminal
US2892178A (en) * 1956-10-26 1959-06-23 Amp Inc Button contact
US2911616A (en) * 1957-06-13 1959-11-03 Raymond L Townsend Strain relief for stranded cable connection
US2961634A (en) * 1958-06-09 1960-11-22 Essex Wire Corp Sheet metal contact
US3404368A (en) * 1965-08-04 1968-10-01 Amp Inc Electrical connector of the plug or socket variety
US3412366A (en) * 1967-04-10 1968-11-19 Ind Electronic Hardware Corp Anode connector for kinescope
US3634818A (en) * 1968-09-26 1972-01-11 Molex Inc Female electrical terminal
US5302146A (en) * 1991-10-14 1994-04-12 Yazaki Corporation Crimp-style terminal
US5338233A (en) * 1992-04-08 1994-08-16 Yazaki Corporation Structure for electrically connecting a terminal and a wire
US20190296459A1 (en) * 2018-03-23 2019-09-26 Hirose Electric Co., Ltd. Coaxial cable connector provided with a housing having a pair of crimping pieces
US10615521B2 (en) * 2018-03-23 2020-04-07 Hirose Electric Co., Ltd Coaxial cable connector provided with a housing having a pair of crimping pieces
US20200076179A1 (en) * 2018-08-30 2020-03-05 Rosenberger Hochfrequenztechnik Gmbh & Co. Kg Multi-core cable
US10886720B2 (en) * 2018-08-30 2021-01-05 Rosenberger Hochfrequenztechnik Gmbh & Co. Kg Multi-core cable

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