EP0005350B1 - Terminal cover - Google Patents

Terminal cover Download PDF

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Publication number
EP0005350B1
EP0005350B1 EP19790300716 EP79300716A EP0005350B1 EP 0005350 B1 EP0005350 B1 EP 0005350B1 EP 19790300716 EP19790300716 EP 19790300716 EP 79300716 A EP79300716 A EP 79300716A EP 0005350 B1 EP0005350 B1 EP 0005350B1
Authority
EP
European Patent Office
Prior art keywords
slot
cover
terminal
closed end
extending
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
Application number
EP19790300716
Other languages
German (de)
French (fr)
Other versions
EP0005350A1 (en
Inventor
Jr. Robert Philmore Reavis
Melvin Andrew Soderstrom
Vasantrai Ambavi Vachhani
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TE Connectivity Corp
Original Assignee
AMP Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US05/903,367 external-priority patent/US4186984A/en
Application filed by AMP Inc filed Critical AMP Inc
Publication of EP0005350A1 publication Critical patent/EP0005350A1/en
Application granted granted Critical
Publication of EP0005350B1 publication Critical patent/EP0005350B1/en
Expired 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
    • 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
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2416—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type
    • H01R4/242—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members being plates having a single slot
    • H01R4/2437—Curved plates
    • H01R4/2441—Curved plates tube-shaped
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50—Fixed connections
    • H01R12/51—Fixed connections for rigid printed circuits or like structures
    • H01R12/53—Fixed connections for rigid printed circuits or like structures connecting to cables except for flat or ribbon cables

Definitions

  • the invention relates to a cover for a tubular terminal having an axially extending wire receiving slot.
  • United States Patent No. 3,897,128 discloses a known cover for a tubular terminal having a longitudinally extending wire receiving slot which cover comprises a tube moulded in one piece from plastics material with a closed end and an open, terminal receiving end, a wire receiving slot extending longitudinally along the plastics tube from the open end a centrally located, axially extending stuffer projecting internally from the closed end for engagement with a wire received in the slot when the cover is applied to the terminal.
  • the above United States patent specification also discloses a similar cover which has a closed end from which extends, longitudinally of the cover, a pedestal for seating a tubular electrical terminal, the cover having a wire receiving slot extending longitudinally thereof and terminating remote from the closed end in a transversely extending slot.
  • a disadvantage of the first mentioned known cover is that handling difficulties may arise particularly during initial application to the terminal with consequential risk of damage to the terminal.
  • a pair of tool receiving intersecting recesses extending transversely of the axis are formed on the exterior of the closed end and the wire receiving slot terminates remote from the closed end in a transversely extending slot.
  • the engagement of the tool in the cruciform slots ensures that correctly directed force is applied to the cover, particularly during initial application to the terminal reducing risk of damage to the terminal, by faulty application.
  • the cover 11 comprises a tube moulded in one piece from plastics material and closed at one end 12.
  • a wire receiving slot 13 extends longitudinally of the tube from an open terminal receiving end and terminates remote from the closed end 12 in a transversely extending slot 14.
  • a centrally located, axially extending, stuffer 15 projects internally from the closed end to a location adjacent the slot 14.
  • a pair of tool receiving intersecting recesses 16 extending transversely of the tube axis are formed on the exterior of the closed end and an axially extending arcuate lug 17 having the same profile as the tube is integrally formed with the closed end.
  • a terminal 19 for use with the cover is a stamped and formed metal tube adapted at one end to be mounted in a printed circuit board 23 and having a wire receiving slot 21 extending longitudinally between the ends and intersected by a transverse slot 22 which divides the terminal into two wire receiving sections, one on each side of the slot 22, which have substantially independent wire clamping characteristics as described in our British Patent No. 1,463,830 (8299).
  • an insulated wire 24 is aligned with the slot 21 ( Figure 1) and the cover is pushed onto the terminal by a tool, such as a screwdriver having a cruciform head inserted in slots 16, so that the wire is received in slot 13, engaged by the stuffer, and forced into the section of slot 21 remote from the printed circuit board.
  • a tool such as a screwdriver having a cruciform head inserted in slots 16, so that the wire is received in slot 13, engaged by the stuffer, and forced into the section of slot 21 remote from the printed circuit board.
  • the slot walls penetrate the insulation and establish electrical connection with the wire core.
  • the wire is retained above the transverse slot 22 by abutment with the corners defined between slots 21 and 22, the section of slot 21 adjacent the printed circuit board being in unexpanded condition.
  • Insertion of a second wire 25 into slot 21 pushes the first wire 24 past the slot 22 into the section of slot 21 adjacent the printed circuit board.
  • the walls of the slot 13 provide strain relief for the connection.
  • the engagement of the tool in the cruciform slots ensures that correctly directed force is applied to the cover, particularly during initial application to the terminal reducing risk of damage to the terminal by faulty application.
  • the cover may readily be removed from the terminal by gripping the lug 17 with a suitable tool such as a pair of pliers.
  • a series of covers 11 may conveniently be integrally moulded with a flexible carrier strip 27 and applied to terminals 19 unequally spaced apart on a printed circuit board reducing handling difficulties.

Description

  • The invention relates to a cover for a tubular terminal having an axially extending wire receiving slot.
  • United States Patent No. 3,897,128 discloses a known cover for a tubular terminal having a longitudinally extending wire receiving slot which cover comprises a tube moulded in one piece from plastics material with a closed end and an open, terminal receiving end, a wire receiving slot extending longitudinally along the plastics tube from the open end a centrally located, axially extending stuffer projecting internally from the closed end for engagement with a wire received in the slot when the cover is applied to the terminal.
  • The above United States patent specification also discloses a similar cover which has a closed end from which extends, longitudinally of the cover, a pedestal for seating a tubular electrical terminal, the cover having a wire receiving slot extending longitudinally thereof and terminating remote from the closed end in a transversely extending slot.
  • A disadvantage of the first mentioned known cover is that handling difficulties may arise particularly during initial application to the terminal with consequential risk of damage to the terminal.
  • According to the invention, a pair of tool receiving intersecting recesses extending transversely of the axis are formed on the exterior of the closed end and the wire receiving slot terminates remote from the closed end in a transversely extending slot.
  • The engagement of the tool in the cruciform slots ensures that correctly directed force is applied to the cover, particularly during initial application to the terminal reducing risk of damage to the terminal, by faulty application.
  • A specific example of the invention will now be described with reference to the accompanying drawings, in which:-
    • Figure 1 is a perspective view of a cover according to the invention aligned with a single wire for application to a terminal;
    • Figure 2 is a cross-sectional view of the terminal and cover after application of the cover to the terminal;
    • Figure 3 is a cross-sectional view of the terminal and cover after intersection of two wires into the terminal; and
    • Figure 4 is a side view of a series of covers during application to a series of terminals.
  • The cover 11 comprises a tube moulded in one piece from plastics material and closed at one end 12. A wire receiving slot 13 extends longitudinally of the tube from an open terminal receiving end and terminates remote from the closed end 12 in a transversely extending slot 14. A centrally located, axially extending, stuffer 15 projects internally from the closed end to a location adjacent the slot 14. A pair of tool receiving intersecting recesses 16 extending transversely of the tube axis are formed on the exterior of the closed end and an axially extending arcuate lug 17 having the same profile as the tube is integrally formed with the closed end.
  • A terminal 19 for use with the cover is a stamped and formed metal tube adapted at one end to be mounted in a printed circuit board 23 and having a wire receiving slot 21 extending longitudinally between the ends and intersected by a transverse slot 22 which divides the terminal into two wire receiving sections, one on each side of the slot 22, which have substantially independent wire clamping characteristics as described in our British Patent No. 1,463,830 (8299).
  • In use of the cover, an insulated wire 24 is aligned with the slot 21 (Figure 1) and the cover is pushed onto the terminal by a tool, such as a screwdriver having a cruciform head inserted in slots 16, so that the wire is received in slot 13, engaged by the stuffer, and forced into the section of slot 21 remote from the printed circuit board. During insertion into the slot 21, the slot walls penetrate the insulation and establish electrical connection with the wire core. The wire is retained above the transverse slot 22 by abutment with the corners defined between slots 21 and 22, the section of slot 21 adjacent the printed circuit board being in unexpanded condition. Insertion of a second wire 25 into slot 21 pushes the first wire 24 past the slot 22 into the section of slot 21 adjacent the printed circuit board. The walls of the slot 13 provide strain relief for the connection.
  • The engagement of the tool in the cruciform slots ensures that correctly directed force is applied to the cover, particularly during initial application to the terminal reducing risk of damage to the terminal by faulty application. The cover may readily be removed from the terminal by gripping the lug 17 with a suitable tool such as a pair of pliers.
  • As shown in Figure 4, a series of covers 11 may conveniently be integrally moulded with a flexible carrier strip 27 and applied to terminals 19 unequally spaced apart on a printed circuit board reducing handling difficulties.

Claims (2)

1. A cover (11) for a tubular terminal (19) having a longitudinally extending wire receiving slot (21), which cover (11) comprises a tube moulded in one piece from plastics material with a closed end (12) and an open, terminal receiving end, a wire receiving slot (13) extending longitudinally along the plastics tube from the open end a centrally located, axially extending stuffer (15) projecting internally from the closed end (12) for engagement with a wire (24) received in the slot (13) when the cover (11) is applied to the terminal (19) characterised in that a pair of tool receiving intersecting recesses (16) extending transversely of the axis are formed on the exterior of the closed end (12) and in that the wire receiving slot (13) terminates remote from the closed end in a transversely extending slot (14).
2. A cover according to Claim 1, characterised in that a lug (17) is integrally joined to the closed end.
EP19790300716 1978-05-05 1979-04-26 Terminal cover Expired EP0005350B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/903,367 US4186984A (en) 1977-12-05 1978-05-05 Strain relief cover for a barrel terminal
US903367 1986-09-03

Publications (2)

Publication Number Publication Date
EP0005350A1 EP0005350A1 (en) 1979-11-14
EP0005350B1 true EP0005350B1 (en) 1983-05-11

Family

ID=25417385

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19790300716 Expired EP0005350B1 (en) 1978-05-05 1979-04-26 Terminal cover

Country Status (9)

Country Link
EP (1) EP0005350B1 (en)
JP (1) JPS54145989A (en)
AU (1) AU517263B2 (en)
BR (1) BR7902741A (en)
CA (1) CA1111541A (en)
DE (1) DE2965345D1 (en)
ES (1) ES250497Y (en)
HK (1) HK2287A (en)
MX (1) MX145189A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8003708A (en) * 1980-06-26 1982-01-18 Du Pont Nederland BOX CONNECTOR.
EP0062771B1 (en) * 1981-04-04 1985-09-11 KRONE GmbH Connexion of conductors for a telecommunication cable
US4431247A (en) * 1982-04-23 1984-02-14 Minnesota Mining And Manufacturing Company Insulated terminal and module
DE3233458C1 (en) * 1982-09-09 1988-06-16 C.A. Weidmüller GmbH & Co, 4930 Detmold Cutting connector
AU580081B2 (en) * 1984-08-02 1988-12-22 Adc Telecommunications, Incorporated Electrical connector module with multiple connector housings
US4795364A (en) * 1987-05-20 1989-01-03 Amp Incorporated Insulation displacing barrel terminal

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2501187A (en) * 1945-03-14 1950-03-21 Oortgijsen Jan Connector for joining conductors
US3377611A (en) * 1966-12-12 1968-04-09 Walter S. Pawl Rigid parallel sided squeeze slot connector
DE2048116A1 (en) * 1970-07-01 1972-01-13 Niko Pvba Connection device for electrical conductors
US3877773A (en) * 1973-10-29 1975-04-15 Amp Inc Double-ended conductor-in-slot connecting device

Also Published As

Publication number Publication date
HK2287A (en) 1987-01-16
EP0005350A1 (en) 1979-11-14
AU517263B2 (en) 1981-07-16
CA1111541A (en) 1981-10-27
AU4653679A (en) 1979-11-08
ES250497U (en) 1980-08-01
BR7902741A (en) 1979-11-27
DE2965345D1 (en) 1983-06-16
JPS6161233B2 (en) 1986-12-24
JPS54145989A (en) 1979-11-14
MX145189A (en) 1982-01-12
ES250497Y (en) 1981-01-16

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