EP0358218B1 - A crimp terminal - Google Patents

A crimp terminal Download PDF

Info

Publication number
EP0358218B1
EP0358218B1 EP89116571A EP89116571A EP0358218B1 EP 0358218 B1 EP0358218 B1 EP 0358218B1 EP 89116571 A EP89116571 A EP 89116571A EP 89116571 A EP89116571 A EP 89116571A EP 0358218 B1 EP0358218 B1 EP 0358218B1
Authority
EP
European Patent Office
Prior art keywords
distance
crimping
terminal
feed blade
crimp
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
EP89116571A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0358218A3 (en
EP0358218A2 (en
Inventor
Nori Inoue
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.)
Sumitomo Wiring Systems Ltd
Original Assignee
Sumitomo Wiring Systems 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 Sumitomo Wiring Systems Ltd filed Critical Sumitomo Wiring Systems Ltd
Publication of EP0358218A2 publication Critical patent/EP0358218A2/en
Publication of EP0358218A3 publication Critical patent/EP0358218A3/en
Application granted granted Critical
Publication of EP0358218B1 publication Critical patent/EP0358218B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • 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
    • H01R43/048—Crimping apparatus or processes
    • H01R43/0482—Crimping apparatus or processes combined with contact member manufacturing mechanism
    • 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
    • H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve

Definitions

  • a movable head a pair of a matable anvil and a crimping anvil, and a feed blade which can be moved rewardly along a terminal strip carrier portion.
  • a carriage block moves into engagement with a stop screw, and the feed blade is engaged with an aperture in the teminal strip carrier portion in order to move terminal to a crimping position.
  • An operator initially sets the stop which determes the position of the feed blade at the extreme of its forward movement toward the crimping means and then the blade is at the standardized distance from the anvil of the crimping means.
  • the feed blade travels to a distance greater than the spacing between the terminals of any strip to be applied and less than twice the spacing ( 2 ⁇ Sm ) between the terminals of that strip which comprises the smallest spacing (Sm) of all terminals to be used; thus, the stop screw and the guide element become readily adjustable to obtain an accurate feed of the terminal strip.
  • the preferred mode of manufacturing includes an automatic operation wherein a series of die stations are arranged to be driven in a step-by-step fashion in order to perform shearing-punching, coining, extruding and shearing operations of a continuously fed strip or joined connector members.
  • the stations are fixed and a sheet and the progression thereof are moved by carrier driven by pin members adapted to engage pilot holes punched therein prior to the first station.
  • US-A-3 969 806 discloses an apparatus and a method for crimping electrical terminals.
  • the crimping terminals are arranged on a strip and are fed to a crimping position by means of a feed blade engaging one of a plurality of feed apertures formed in the strip.
  • Different terminal strips with different spacing between the terminals which, however, have a standardized distance from an aperture to a terminal, can be processed by providing an adjustment in the apparatus, namely the stop which determines the position of the feed blade at the extreme of its forward movement towards the crimping means.
  • an adjustment of the stop is provided which determines the position of the feed blade at the extreme of its forward movement towards the crimping means.
  • crimp terminals in a strip form (10),(10′) are illustrated in Fig.5 and Fig.6. As shown in the figures, there are various kinds of crimp terminals with different spacings on the same side of terminal carriers (11).
  • Round holes (2) are called “pilot holes” and they are located on crossing points of the longitudinal axis of each terminal and the (longitudinal) center line of a corresponding terminal carrier. There are further provided square “carrying apertures” (12) along the center line which are usually located in the middle of two adjacent pilot holes.
  • a crimping apparatus for making an electrical contact between an insulated conductor and electrical terminal by crimping, as it is used by applicants, is illustrated in Fig.7.
  • a strip of terminals is fed automatically on the surface of an anvil (4b) by means of a feed blade (5) from left to right, wherin the conductor holding portion (14) of the crimp teriminal (13) faces a crimp die (4a).
  • the free end portion of the feed blade (5) is engaged with the square carrying aperture (12) in the terminal carrier (11). Another end portion of the feed blade is linked to a movable arm (6) and is pulled rearwardly, thereby preventing forward movement by a spring (7) during the engagement of the free end portion of the feed blade (5) with the pilot hole (2) or the carrying aperture (12).
  • the spacing between adjacent pilot holes or adjacent carrying apertures is variable, depending on the respective type of the crimp terminals and it becomes, therefore, necessary for an operator to set carefully the moving distance of the free end portion of the feed blade (5) by adjusting both the blade length adjuster (9) and a drive cam pitch controller (8) which determines the stroke D and the frequency of the moving arm (6).
  • a strip terminal (10) is supplied by an automatic feeding mechanism consisting of a moving arm (6) and a feed blade (5).
  • a piece of insulation wire is crimped at the holding portion (14) of the crimp terminal (13) when a crimp die (4a) descends until it does contact the upper surface of an anvil (4b).
  • the moving arm (6) waves in a clockwise direction, as indicated by a line J.
  • a spring (7) pulls the feed blade rearwardly and the top free end of the feed blade (5) will become engaged with adjacent perforations placed in the terminal carrier (11).
  • the crimp die (4a) moves upwardly and the moving arm (6) moves the strip terminal in such a way that another terminal is accurately fed to the new crimping position. It has been a usual practice for the operator to make a precise adjustment of the terminal position by using a cam-pitch controller (8) and a blade length adjuster (9).
  • the strocke D of the feed blade (5) is kept unchanged even if the respective size, number and spacing of the carrying apertures (22)(32) varies from a terminal strip (20) to another strip (30).
  • a single one crimping apparatus is able to crimp electrical terminals having different spacings without making an adjustment of the stroke of the feed blade.
  • Spacing A and Spacing B represents the distance between adjacent terminals, in the two strip terminals (20) and (30) their relationship is expressed as follows: A ⁇ B A ⁇ B ⁇ 2A
  • the carrying apertures (22), (32) shall be located, on their terminal carrier portions (21)and (31) respectively, at point F which is commonly apart a distance C from a position E where the crimping operation is carried out.
  • the carrying apertures (22), (32) shall be positioned on their carrier portions (21), (31) respectively, at the same distance C measured from the crimping position, (refer to Fig.1 and Fig.2)
  • the moving stroke D of the feed blade is determined within the range defined by the following equation: B ⁇ D ⁇ 2A
  • the strip terminal (20) has a plurality of crimp terminals (23) [(23a),(23b) and others] aligned side by side with a spacing A and arranged on a terminal carrier (21) having carring apertures (22) [(22a),(22b) and others] which are positioned in a ritual distance A which is taken from the longitudinal axis (25) of the crimp terminals (23) (Fig.2).
  • the longitudinal axis (25) of the crimp terminal (23a) is in a matching position E with that of the crimp die (1) (Fig.7).
  • the front edges (right side edges) of the carrying aperture (22a) and (22b) are located in positions which are shown in Fig.1 and Fig.2, where the distance from the crimping position E to the front edge F (right side edge) of the carrying aperture (22a) is C and wherein that carrying aperture (22b), at which the feed blade is to be mated in order to carry the terminal (23b) to the crimp position E, is located in a position which is also apart a distance C from the longitudinal axis (25) of the terminal (23a).
  • the feed blade (5) is pulled back by the spring (7) along the terminal carrier (21) towards the position G which is apart a distance D from the stationary position F.
  • the feed blade (5) is then moved in the direction I until it mates with another carrying aperture (22b) and continues to move until the feed blade (5) comes again to the stationary position F.
  • the strocke D of the feed blade (5) is larger than the spacing A between the adjacent carrying apertures (22a), (22b).
  • FIG.3 and Fig.4 Another strip terminal (31) having a similar configuration, but with a different locational relationship, is illustrated in Fig.3 and Fig.4, where the spacing between adjacent crimp terminals (33) is B which is larger than A in the preceeding example, and is less than 2A.
  • the distance between the front edge (right side edge) of the carrying aperture (32) and the longitudinal axis of the adjacent preceeding crimp terminal (33) is B'
  • the carrying aperture (32a) is apart a distance C from the crimp position E
  • the stroke D of the feed blade (5) is equal to the spacing between adjacent carrying apertures (32a), (32b).
  • the feed blade has mated with the next aperture when it returns to position G by means of spring (7); then the movement towards the direction I is started at once.
  • the strip terminal (20) shown in Fig.2 has a standardized spacing A between adjacent crimp terminals such as (23a) (23b) and the carrying aperture (22) is located on the terminal carrier (21) in a position which is apart a distance A' from the longitudinal axis of the crimp terminal (23).
  • the second example comprises the strip terminal (30) shown in Fig.4 where the spacing between (33a)(33b) is B and the carrying aperture (32) is in a position having a distance B' from the longitudinal axis of the crimp terminal (33).

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
EP89116571A 1988-09-08 1989-09-07 A crimp terminal Expired - Lifetime EP0358218B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP118209/88U 1988-09-08
JP1988118209U JPH088554Y2 (ja) 1988-09-08 1988-09-08 横連鎖端子

Publications (3)

Publication Number Publication Date
EP0358218A2 EP0358218A2 (en) 1990-03-14
EP0358218A3 EP0358218A3 (en) 1991-07-03
EP0358218B1 true EP0358218B1 (en) 1996-01-31

Family

ID=14730907

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89116571A Expired - Lifetime EP0358218B1 (en) 1988-09-08 1989-09-07 A crimp terminal

Country Status (6)

Country Link
EP (1) EP0358218B1 (enrdf_load_stackoverflow)
JP (1) JPH088554Y2 (enrdf_load_stackoverflow)
KR (1) KR930000502Y1 (enrdf_load_stackoverflow)
CN (1) CN2054213U (enrdf_load_stackoverflow)
DE (1) DE68925550T2 (enrdf_load_stackoverflow)
MY (1) MY104198A (enrdf_load_stackoverflow)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3420087A (en) * 1963-02-18 1969-01-07 Amp Inc Electrical connector means and method of manufacture
US3969806A (en) * 1973-02-20 1976-07-20 Bunker Ramo Corporation Apparatus and method for crimping terminals
JPS5786273U (enrdf_load_stackoverflow) * 1980-11-14 1982-05-27

Also Published As

Publication number Publication date
EP0358218A3 (en) 1991-07-03
JPH0239489U (enrdf_load_stackoverflow) 1990-03-16
JPH088554Y2 (ja) 1996-03-06
MY104198A (en) 1994-02-28
EP0358218A2 (en) 1990-03-14
KR930000502Y1 (ko) 1993-02-05
CN2054213U (zh) 1990-03-07
DE68925550D1 (de) 1996-03-14
DE68925550T2 (de) 1996-06-05

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