US3831271A - Battery terminal - Google Patents

Battery terminal Download PDF

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Publication number
US3831271A
US3831271A US00295171A US29517172A US3831271A US 3831271 A US3831271 A US 3831271A US 00295171 A US00295171 A US 00295171A US 29517172 A US29517172 A US 29517172A US 3831271 A US3831271 A US 3831271A
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US
United States
Prior art keywords
ring
bifurcate
battery terminal
moulding
wire
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
US00295171A
Other languages
English (en)
Inventor
R Pedler
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.)
Camelec Ltd
Pirelli Ericsson Cables Pty Ltd
Original Assignee
Camelec Ltd
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 Camelec Ltd filed Critical Camelec Ltd
Application granted granted Critical
Publication of US3831271A publication Critical patent/US3831271A/en
Assigned to PIRELLI ERICSSON CABLES (DEE WHY) PTY. LIMITED, reassignment PIRELLI ERICSSON CABLES (DEE WHY) PTY. LIMITED, CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE JAN. 9,1979, ENGLAND, Assignors: CONQUEROR CABLES PTY. LIMITED
Assigned to PIRELLI ERICSSON CABLES LIMITED, A NEW SOUTH WALES AUSTRALIA CORP. reassignment PIRELLI ERICSSON CABLES LIMITED, A NEW SOUTH WALES AUSTRALIA CORP. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: PIRELLI ERICSSON CABLES (DEE WHY) PTY. LIMITED
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
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • H01R11/28—End pieces consisting of a ferrule or sleeve
    • H01R11/281—End pieces consisting of a ferrule or sleeve for connections to batteries
    • 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
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49174—Assembling terminal to elongated conductor
    • Y10T29/49176—Assembling terminal to elongated conductor with molding of electrically insulating material
    • 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
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49204—Contact or terminal manufacturing
    • Y10T29/49208—Contact or terminal manufacturing by assembling plural parts
    • Y10T29/4922—Contact or terminal manufacturing by assembling plural parts with molding of insulation

Definitions

  • ABSTRACT A battery terminal connector for connecting to a battery of. the type having a frusto conical battery terminal post, theconnector having a part circular bifurcate ring with a resin based plastics outer casing which is also of bifurcate shape but has overlapping lugs the ends of which, when moved towards one another, spread the arms of the connector, the casing comprising resilient means for retaining the connector to the battery terminal post.
  • This invention relates to a battery terminal connector suitable for use on a leacLtype battery having a frusto conical post upstanding therefrom, and the invention further relates to a method of producing a battery terminal connector.
  • the inner surface of the connector is provided with a parallel walled or cylindrical section which is so arranged that when the connector is positioned on the terminal post, it functions to some extent as a scraper to scrape off dirt or corrosion films, and the contact area between the connector and the terminal post is relatively small, so that the pressure between the mating surfaces is high and corrosion is unlikely to develop.
  • the main single object of this invention is to provide a battery terminal of the spring type which is provided with lugs for opening or spreading of the anns of the connector, but wherein these lugs are less likely to be damaged than heretofore, and whereinthe lugs are formed of material which is non-corrosive under the influence of the effluent gases and vapours of a battery.
  • a second object of the invention is to provide improvements wherein a battery terminal connector is less likely to be dislodged upwardly over a tapered terminal post, even under conditions of extreme vibration and wear.
  • This invention relates to a terminal connector. having a conductor in the form of a part circular bifurcate ring.
  • the characterising featuresof the invention include resin based plastics material comprising resilient means moulded-around the bifurcate ring, and having lugsextending outwardly therefrom, the lugs overlapping and having their ends arranged so that,.when
  • the invention is further characterised by the .frusto conical portion of the contact surface terminates atits small diameter end in a shelf so as to form a ridge which firmly engages the outer surface of the battery terminal post in such a manner as to resist upward displacement under extreme conditions of vibration.
  • the invention in.one.of its forms consists of a battery terminal connector having theconductor in the form of a part circular bifurcate ring with. an inner contact surface of such shape and size as to em gage a frusto conical battery terminal post, and an outer casingsurrounding and interengaging a bifurcate ring, the outer casing being formed of resin based plastics material and comprising resilient means, theouter casing also being of bifurcateshape but having overlapping lugs the ends of which, when moved-towards'one another, spread the arms of the connector-and deform the resilient means.
  • the resilient means may be in the form of a spring contained within the resin based plastics casing and bearing against the part circular bifurcate ring, or the resilient means may be characteristic of the resin based plastics material itself.
  • the invention includes the further features of the inner surface of the part circular conductor ring having a frusto conical portion with an acute angle which exceeds the included angle of frusto conicalterminal to which the connector is to be fitted, the frusto conical portion terminating at its small diameter end in a shelf and forming with the shelf a ridge which resiliently engages the terminal.
  • FIG. l is a plan view of a battery terminal connector
  • a battery terminal connector is formed to have a conductor 11 having the form of a part circular bifurcate ring 12 which is best seen in FIG. 5, the ring having a hollow tail 13 extending from it.
  • a cable 15 includes a wire core 16 covered with an insulating sheath 17, and portion of the insulating sheath 17 is removed to expose an end of the cable wire core which is inserted in the hollow tail 13, and crimped in place by means of a press.
  • the wire core may be inserted in the mould in which the hollow tail 13 is moulded during the moulding of the conductor 11.
  • the conductor 11 is provided with upper and lower recesses designated 20 which are of triangular shape and which subsequently provide key means for keying the conductor 11 to the outer casing when this is moulded.
  • the upper surface is also provided with a recess designated 21 for retaining of a C-shaped spring as I described hereinbelow.
  • the conductor 11 is provided with an inner contact surface 24 of frusto conical shape, the included cone angle of the surface 24 being greater than the included cone angle of the outer surface of the battery terminal post (not shown) with which the connector is to cooperate.
  • the upper end of the surface 24 terminates in a planar shoulder surface 25, the angle subtended between the contact surface 24 and the shoulder surface 25 being an acute angle as illustrated in FIG. 4, and being at the smaller diameter end of the contact surface 24 so that the ridge formed between the shoulder and the contact surface firmly engages the surface of the battery terminal post and in turn forms an interface which is likely to corrode under the influence of the effiuent gases and vapours of a battery much less quickly than when low contact pressures exist.
  • a C-shaped ring 27 nests in the recess 21 and bears against the bifurcate ring portion of the conductor 11 at a point axially close to the shoulder surface 25 but spaced radially outwardly therefrom.
  • the C-shaped ring 27 is a ring of flat steel of relatively small thickness but relatively large width in a radial direction so that the ring applies a high pressure to that part of the part circular arms of the conductor which contacts the terminal post.
  • a casing designated 30 is formed from resin based plastics material, in the embodiment being described herein being a suitable grade of polyvinyl chloride, the casing 30 having a tail designated 31 which completely surrounds portion of the insulating sheath 17 of the cable 15, the casing 30 also having a portion which engages in the triangular section recesses 20, the casing 30 being of bifurcate shape but being provided at its bifurcated end with three lugs, two outer lugs 31 being on one arm and an inner lug 32 on the other arm, the lugs being separated as illustrated in FIG. 4 and overlapping as illustrated in FIG.
  • the casing 30 encases most of the conductor 11 (excepting the contact surface 24) and also encases the otherwise exposed portion of the wire core 16 of the cable 15, it will be seen that corrosion is largely avoided. Furthermore it will be appreciated that the casing material firmly retains the C-shaped ring 27 in its recess 21.
  • FIG. 6 shows the two parts of the die separated
  • FIG. 7 is a plan view of the lower die part
  • FIG. 8 shows the slidable inserts.
  • the die designated generally as 36 includes an upper die part 37 and lower die part 38.
  • the die parts are arranged so that the plane between them when closed is the central plane of the battery terminal connector, but as seen in FIG. 4, the central plane of the battery terminal connector is not the central plane of the bifurcate ring 12 of the conductor 11, there being a larger thickness of casing above the bifurcate ring than below it. This enables the C-shaped spring 27 to be firmly retained and resists any tendency for the spring to tip or buckle beneath the casing.
  • the lower die part 38 there is provided a central spigot 39 which is arranged to support the bifurcate ring 12 of the conductor 11, while the cavity designated 40 (existing in both die parts) will contain the hollow tail 13 but with a space surrounding it.
  • the water cooled blocks 41 (existing in both die parts) each contain a part circular section groove 42 for supporting the insulating sheath 17 of the cable 15 and water cooling it so it will not be excessively damaged by the heat of the plastics material during moulding.
  • the upper die part 37 is provided with a depending spigot 44 which aligns with the central spigot 39 of the lower die part 38, and alignment is assured by means of the guide pin 45 which engages in an aperture 46 in the central spigot 39.
  • the two spigots 39 and 44 lie central with one another and face to face to form the central cavity of the connector 10, but in order to provide a clean shelf 25 the depending spigot 44 is of slightly larger diameter than the upper end of the central spigot 39.
  • both the die parts 37 and 38 are provided with slots designated 48, the two slots 48 aligning with the die parts are closed together to form a single rectangular section aperture extending transversely across the die.
  • This aperture is interrupted in a central position by a round ended plate 49 in both the upper and lower die part, the two rounded ended plates 49 abutting one another when the die parts are closed.
  • FIG. 8 A pair of oppositely aligned lugs forming inserts are illustrated in FIG. 8, one insert being designated 51 and the other being designated 52, the lug fomiing inserts being slidable within the aperture formed by the slots 48, the lug forming inserts abutting one another in end to end relationship and surfaces designated 54 which abut the sides and ends of the round ended plates 49.
  • Both the lug forming inserts 51 and 52 are provided with horizontal division plates designated 55, one of the inserts (insert 51) having a vertical division plate 56 extending between the horizontal division plates 55 and the other insert (52) having further vertical division plates designated 57 extending above and below respective division plates 55 but not between them.
  • the division plates form a central lug which is integral with the right hand arm of the casing 30 and two lugs integral with the left hand arm, which overlap the central lug.
  • the ends of the lugs are arranged to project beyond those portions which connect the other respective lugs to their respective arms to thereby provide means for application of a pressure tool, for example a pair of pliers for spreading the arms.
  • CELANEX for example is a thermoplastics polyester containing 30 percent by weight of short glass fibers and at 73F having an elongation of 2% a tensile modulus of 1.3 X psi, a flexural stress of 26,000 psi having 5% deformation, and a flexural modulus of 1.1 X 10
  • Such a material is usually moulded in hot dies, and to achieve a satisfactory result for the product of this invention, and as shown in FIGS. 6 and 7 heating elements 60 are inserted in both the die parts 37 and 38 and arranged to maintain the dies at a temperature of 140F.
  • the interlocking of the casing 30 with the conductor 11 through the recesses transmits resilience of the case 30 to the conductor 11 and at the same time prevents the case 30 from pulling away from the conductor when the arms are spread. Furthermore, the ends of the part circular bifurcate conductor ring 12 which face each other are covered with plastics material of the case 30, and this also assists in preventing the case 30 from pulling away from the conductor.
  • a method of producing a battery terminal connector comprising the steps:
  • Method of producing a battery terminal connector according to claim 1 further comprising moulding a hollow tail to extend outwardly from the part circular bifurcate ring, removing the end of the insulation of an insulated wire cable to expose a length of cable, inserting the exposed length of wire into the hollow tail and clamping the tail over the wire, and then effecting steps (b), (c), (d), (e) and (f) of claim 1 to mould said outer casing over said bifurcate ring and, at the same time, over portion of said insulation.
  • Method of producing a battery terminal connector according to claim 1 further comprising moulding a hollow tail to extend outwardly from the part circular bifurcate ring, removing the end of the insulation of an insulated wire cable to expose a length of cable, inserting the exposed length of wire into the hollow tail and moulding the tail over the wire, and then effecting steps (b), (c), (d), (e) and (f) ofclaim l to mould said outer casing over said bifurcate ring and, at the same time,

Landscapes

  • Connection Of Batteries Or Terminals (AREA)
US00295171A 1971-10-14 1972-10-05 Battery terminal Expired - Lifetime US3831271A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AUPA663571 1971-10-14

Publications (1)

Publication Number Publication Date
US3831271A true US3831271A (en) 1974-08-27

Family

ID=3764838

Family Applications (1)

Application Number Title Priority Date Filing Date
US00295171A Expired - Lifetime US3831271A (en) 1971-10-14 1972-10-05 Battery terminal

Country Status (5)

Country Link
US (1) US3831271A (it)
JP (1) JPS4846836A (it)
FR (1) FR2156326B1 (it)
GB (1) GB1410041A (it)
IT (1) IT968932B (it)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5724730A (en) * 1995-02-16 1998-03-10 Yazaki Corporation Method of protecting conductive part of flat cable
US5915758A (en) * 1995-11-24 1999-06-29 Alfiero; Joseph A. Bridge for low resistance electrical connections and method of using same
US20050257940A1 (en) * 2002-08-09 2005-11-24 Orlando Jerez Universal, trimmer line lock system
US20060112568A1 (en) * 2004-12-01 2006-06-01 Orlando Jerez Universal, trimmer line, hook disk system
US20090038163A1 (en) * 2007-08-10 2009-02-12 Orlando Jerez Weed trimming apparatus, weed trimmer head, and trimmer line retention device
US9210838B2 (en) 2010-06-01 2015-12-15 Orlando Jerez Rotary trimmer apparatus and related rotary head assembly
US9642302B2 (en) 2010-06-01 2017-05-09 Orlando Jerez Rotary trimmer apparatus and related rotary head assembly

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5341621U (it) * 1976-09-16 1978-04-11
JPS5814530Y2 (ja) * 1976-09-16 1983-03-23 トヨタ自動車株式会社 バッテリ−ポスト用電気接続端子
JPS5816140Y2 (ja) * 1980-07-07 1983-04-01 トヨタ自動車株式会社 バッテリ−ポスト用電気接続端子

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2962689A (en) * 1958-06-09 1960-11-29 Gen Motors Corp Battery terminal connector
US3093432A (en) * 1960-10-27 1963-06-11 Honeywell Regulator Co Molded electrical cord connector
US3152854A (en) * 1963-05-13 1964-10-13 William M Osborn Battery cable connector
US3307140A (en) * 1964-03-20 1967-02-28 Meccaniche Val Ni S P A Costru Clamps for the fastening of wires to the terminals of electric batteries
US3339173A (en) * 1965-08-17 1967-08-29 Robert N Kiene Battery terminal connector
US3397382A (en) * 1967-07-13 1968-08-13 Quick Cable Corp Electrical termination
US3442323A (en) * 1966-05-19 1969-05-06 Keystone Cable Corp Apparatus for making battery cable terminals
US3662322A (en) * 1969-08-08 1972-05-09 Drosdy Importers Proprietary L Battery terminal connectors

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2962689A (en) * 1958-06-09 1960-11-29 Gen Motors Corp Battery terminal connector
US3093432A (en) * 1960-10-27 1963-06-11 Honeywell Regulator Co Molded electrical cord connector
US3152854A (en) * 1963-05-13 1964-10-13 William M Osborn Battery cable connector
US3307140A (en) * 1964-03-20 1967-02-28 Meccaniche Val Ni S P A Costru Clamps for the fastening of wires to the terminals of electric batteries
US3339173A (en) * 1965-08-17 1967-08-29 Robert N Kiene Battery terminal connector
US3442323A (en) * 1966-05-19 1969-05-06 Keystone Cable Corp Apparatus for making battery cable terminals
US3397382A (en) * 1967-07-13 1968-08-13 Quick Cable Corp Electrical termination
US3662322A (en) * 1969-08-08 1972-05-09 Drosdy Importers Proprietary L Battery terminal connectors

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5724730A (en) * 1995-02-16 1998-03-10 Yazaki Corporation Method of protecting conductive part of flat cable
US5915758A (en) * 1995-11-24 1999-06-29 Alfiero; Joseph A. Bridge for low resistance electrical connections and method of using same
US20050257940A1 (en) * 2002-08-09 2005-11-24 Orlando Jerez Universal, trimmer line lock system
US20060112568A1 (en) * 2004-12-01 2006-06-01 Orlando Jerez Universal, trimmer line, hook disk system
US20080034724A1 (en) * 2004-12-01 2008-02-14 Orlando Jerez Powered Disk Preferably with Oscillateable, Trimmer-Line-Hook Mounts
US7743511B2 (en) 2004-12-01 2010-06-29 Orlando Jerez Powered disk preferably with oscillateable, trimmer-line-hook mounts
US20090038163A1 (en) * 2007-08-10 2009-02-12 Orlando Jerez Weed trimming apparatus, weed trimmer head, and trimmer line retention device
US9603301B2 (en) 2007-08-10 2017-03-28 Orlando Jerez Weed trimming apparatus, weed trimmer head, and trimmer line retention device
US9210838B2 (en) 2010-06-01 2015-12-15 Orlando Jerez Rotary trimmer apparatus and related rotary head assembly
US9642302B2 (en) 2010-06-01 2017-05-09 Orlando Jerez Rotary trimmer apparatus and related rotary head assembly

Also Published As

Publication number Publication date
IT968932B (it) 1974-03-20
GB1410041A (en) 1975-10-15
DE2250373B2 (de) 1976-10-14
FR2156326B1 (it) 1975-11-21
FR2156326A1 (it) 1973-05-25
JPS4846836A (it) 1973-07-04
DE2250373A1 (de) 1973-04-19

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Legal Events

Date Code Title Description
AS Assignment

Owner name: PIRELLI ERICSSON CABLES (DEE WHY) PTY. LIMITED,

Free format text: CHANGE OF NAME;ASSIGNOR:CONQUEROR CABLES PTY. LIMITED;REEL/FRAME:004147/0554

Effective date: 19830331

AS Assignment

Owner name: PIRELLI ERICSSON CABLES LIMITED, AIRDS ROAD, MINTO

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:PIRELLI ERICSSON CABLES (DEE WHY) PTY. LIMITED;REEL/FRAME:004163/0674

Effective date: 19830508