EP0374239B1 - Flat cable terminating apparatus - Google Patents

Flat cable terminating apparatus Download PDF

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Publication number
EP0374239B1
EP0374239B1 EP89906969A EP89906969A EP0374239B1 EP 0374239 B1 EP0374239 B1 EP 0374239B1 EP 89906969 A EP89906969 A EP 89906969A EP 89906969 A EP89906969 A EP 89906969A EP 0374239 B1 EP0374239 B1 EP 0374239B1
Authority
EP
European Patent Office
Prior art keywords
conductor
conductors
cable
cutting
comb
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
EP89906969A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0374239A1 (en
Inventor
Hiromi Kanwa Haimu 202 6-7 Ogawa 4-Chome Tanaka
Tadashi Park City Shin-Kawasaki E911 Osaka
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.)
Whitaker LLC
Original Assignee
Whitaker LLC
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 Whitaker LLC filed Critical Whitaker LLC
Publication of EP0374239A1 publication Critical patent/EP0374239A1/en
Application granted granted Critical
Publication of EP0374239B1 publication Critical patent/EP0374239B1/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
    • H01R43/28—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for wire processing before connecting to contact members, not provided for in groups H01R43/02 - H01R43/26
    • 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
    • H01R12/59—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
    • H01R12/594—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures for shielded flat cable
    • H01R12/596—Connection of the shield to an additional grounding conductor, e.g. drain wire
    • 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
    • H01R12/70—Coupling devices
    • H01R12/77—Coupling devices for flexible printed circuits, flat or ribbon cables or like structures

Definitions

  • the present invention relates to an apparatus for preparing a flat electrical cable by accurately aligning and arranging electrical conductors of the cable for electrical connection to electrical contacts of an electrical connector.
  • the connectors are of the type that have signal and ground contacts which are electrically connected to signal and ground conductors of flat transmission cables thereby forming cable assemblies that are widely used.
  • the cable In order to electrically connect the signal and ground conductors of the flat transmission cable to the signal and ground contacts of the connector, the cable must be prepared so that the signal and ground conductors are in position to effect the electrical connections with the signal and ground contacts.
  • the diameters of the conductors are very small and they are spaced closely together.
  • Technicians using microscopes manually prepared the cables by positioning and bending the conductors for connection to the signal and ground contacts of the connectors. This resulted in low production and conductor positioning tended to be uneven. The reliability of the connector was therefore effected by these factors.
  • Document EP-A-0 232 958 discloses a nipping and knuckling machine comprising a optics assembly which allows to check the position of a support table on which a cable is mounted, with respect to nipping and kuckling arrangements.
  • An apparatus for preparing an end of a flat electrical cable for aligning, cutting and bending electrical conductors of the cable for electrical connection to electrical contacts of an electrical connector comprises a clamp including a base, a movable clamping section in which the flat cable is to be mounted is positioned on the base, and a locking section for locking the clamping section in position on the base; a clamp-positioning device including a sensing member for sensing a first conductor of exposed conductors of the cable between a jacket and a front end jacket, a lock release device for releasing the locking section, and a clamp-moving device is operated if the first conductor is not in alignment with the sensing member to move the clamping section along the base after the locking section has been released by the lock release device until the first conductor is in alignment with the sensing member whereafter the lock release device permits the locking section to lock the clamping section on the base; and a conductor-aligning, cutting and bending device including a conductor-aligning device for clamping onto the front end jacket,
  • Figures 1A-1C are respectively a top plan view, a front elevational view and a side view showing a cable clamp for a flat electrical cable.
  • Figure 2 is an exploded perspective view of a clamp-positioning device for positioning the cable clamp to which a stripped flat cable is clamped so that the cable conductors will be positioned for electrical connection to the contacts of an electrical connector.
  • Figure 3 is an exploded perspective view of a conductor-aligning, cutting and bending device for aligning, cutting and bending the cable conductors for electrical connection to the connector contacts.
  • Figures 4-11 are diagramatic views showing the essential components of the device of Figure 3 for aligning, cutting and bending the cable conductors.
  • Figure 12 is a part perspective view showing a partly stripped end of a flat electrical cable before being processed to align, cut and bend the conductors.
  • Figure 13 is a view similar to Figure 12 showing the prepared end of the cable with the conductors being aligned, cut and bent for electrical connection to the connector contacts.
  • a front end 3 of flat electrical cable 5 has a section 4 of insulation jacket 2 stripped exposing horizontally-aligned electrical conductors 1 extending between jacket 2 and jacket 2a that has been left on the ends of the conductors.
  • Figure 13 shows the prepared end of cable 5 after the conductors have been spaced and bent by the apparatus of the present invention so that they can be electrically connected to electrical contacts of an electrical connector.
  • Conductors 1 include signal conductors 1a in a plane and ground conductors 1b with outer sections being bent and disposed in another plane parallel to the plane of the signal conductors 1a while the inner sections of the ground conductor 1b are in the same plane of the signal conductors 1a.
  • Cable clamp 10 is shown in Figures 1A-1C and includes a base 11, cable-clamping section 12 mounted on base 11 and a locking section 13. Cable-clamping section 12 has a lower plate 14 and upper plate 15 between which flat cable 5 is clamped.
  • Upper plate 15 is pivotally mounted onto lever 16 which is pivotally on lower plate 14 via pin 17 enabling it to move between an open position and a latched position, as shown in Figure 1B.
  • Spaced holes 16a are located in an upper surface of lever 16.
  • a latch member 18 latches lever 16 in a latched position, as shown in Figure 1B, and is pivotally mounted by pin 19 to lower plate 14 so that it can stay in a latched position by a spring 19a biasing hook 18b into engagement with the free end of lever 16.
  • the outer surface of hook 18b is tapered and so is the front surface of the free end of lever 16 which when engaging one another moves latch member 18 against the bias of spring 19a causing hook 18b to latchably engage the free end of lever 16 when these tapered surfaces clear one another so that spring 19a biases hook 18b onto lever 16 thereby latching it in its latched position.
  • Arm 18a is secured to pin 19 and is movable in a clockwise direction to move hook 18a free of the free end of lever 16 against the bias of spring 19a to unlatch lever 16 to position cable 5 in clamp 10 and remove it therefrom.
  • Projection 14a extends outwardly from the bottom surface of plate 14 and is disposed in channel 11a of base 11 enabling clamping section 12 to move back-and-forth along base 11.
  • Projection 14b extends outwardly from a rear surface of plate 14 for engagement by locking device 13 to maintain clamp 12 in position on base 11.
  • Locking section 13 includes a plate 13a that is mounted on base 11.
  • An L-shaped lever 21 is secured to one end of a shaft 21a that is rotatably mounted in plate 13a.
  • the other end of shaft 21a is connected to one end of a torsion spring 20 which has its other end mounted to plate 13a.
  • An engaging member 22 is secured onto shaft 21a within a slot of plate 13a and pressingly engages projection 14b in its normal position to maintain clamping section 12 at a selected position.
  • Cable clamp 10 with the stripped end 6 of cable 5 clamped therein is engaged by a pawl 31 of a conveying device 30 which moves in the direction of arrow A thereby moving clamp 10 and cable 5 to the clamp-positioning station at which the clamp and cable are stopped by an arm of a pivotaly-mounted lever 32 and at which a clamp-positioning device 100 is located, as shown in Figure 2.
  • Cylinder 101 is operated causing a light-sensing member 102 to move in the direction of arrow B until it detects the first conductor 1c of exposed conductors 1.
  • cylinder 111 of lock release device 110 is operated thereby moving cylinder 112 and rod 113 in the direction of arrow C until end 113a of rod 113 is aligned with lever 21 of locking section 13.
  • Cylinder 112 is operated moving rod 113 downwardly causing end 113a to engage lever 21 and push it downwardly freeing engaging member 22 of locking section 13 from projection 14b enabling clamping section 12 and cable 5 to be moved along base 11 in the directions of arrows D, E.
  • Cylinder 121 of clamp-moving device 120 is operated thereby moving cylinder 122 and plate 123 outwardly from block 127 along parallel rods until plate 123 overlies lever 16 of clamping section 12. Cylinder 122 is operated moving plate 123 downwardly whereby pins 123a are inserted into holes 16a of lever 16 of clamping section 12. Pins 123a are smaller in diameter than holes 16a so that accurate positioning is unnecessary.
  • Reversible electric motor 124 is operated to drive a pulley and belt drive 125 thereby rotating drive screw 12b that engages threads in block 127 to drive it back and forth along drive screw 126 in accordance with the direction of operation of motor 124.
  • Micro switches 128a, b, c are positioned between sensing member 102 and block 127 with switch 128a in the center and aligned with the position of sensing member 102 when it is moved by cylinder 101 to its conductor 1c sensing position.
  • a projection 127a extends downwardly from the bottom surface of block 127 and activates switches 128a, b, c. These switches can be light-sensing devices, if desired.
  • the cable-moving device 120 operates opposite to that described above by driving clamping section 12 and cable 5 in the direction of arrow E until switch 128c is operated whereupon clamping section 12 and cable 5 are driven in the direction of or arrow D until switch 128a is operated thereby stopping motor 124.
  • cylinders 122, 121, 112 and 111 are operated releasing cable-moving device 120 from clamping section 12 and lock release device 110 from lever 21 which causes engaging member 22 to engage projection 14b thereby maintaining clamping section 12 and cable 5 at this position on base 11.
  • Cylinder 33 is operated moving lever 32 free of clamp 10 so that pawl 31 and conveying device 30 can move clamp 10 and aligned cable to conductor-aligning, cutting and bending device 200 of Figure 3.
  • cable 5 is moved via clamp 10 and conveying device 30 (both of which has been omitted from Figure 3 so as not to include subject matter already disclosed and deemed unnecessary) to a stop position such as pivoted lever 32 of Figure 2.
  • Cylinder 211 is operated of conductor-aligning device 210 thereby moving plate 211a on which electric motor 212, cylinder 213, plate 213a, clamping members 214 and rail 219 are mounted along rail 215 in the direction of arrow F until jacket 2a of cable 5 is positioned in opening 216 between clamping members 214.
  • Cylinder 213 is operated causing its shaft to engage the bottom clamping member 214 that is pivotally mounted to the upper clamping member 214 thereby clamping insulation jacket 2a between clamping members 214, as shown in Figures 5B and 8-10.
  • Reversible electric motor 231 of conductor detection device 230 is operated to drive drive screws 233, 234 via a belt 232 engaging pulleys on the motor shaft and drive screws 233, 234. Threads 233a, 234a of drive screws 233, 234 threadably engage threads in blocks 235, 236.
  • blocks 235, 236 move in the directions of arrows G, H in accordance with the rotatorial direction of operation of motor 231.
  • Light-transmitting member 237 is mounted on block 235 whereas light-receiving member 238 is spaced from and in alignment with light-transmitting member 237 and is mounted on block 236.
  • Members 237, 238 form a detecting device to detect the presence of conductors 1 of cable 5.
  • Projection 235a is located on an upper surface of block 235 and activates central microswitch 239 and microswitches 240, 241 spaced to the left and right of switch 239. Switches 239, 240, 241 in conjunction with projection 235a detect the position of members 237, 238 as they move in the directions of arrows G, H.
  • Figures 4-11 in conjunction with Figure 3 show the operations involved to adjust the conductor spacings of cable 5 and to bend certain conductors so that the conductors are in proper position for termination to the termination sections of electrical contacts of an electrical connector.
  • Figure 4 is a front elevational view of multiple comb members 250, electrical conductors 1 of cable 5 and light-transmitting member 237 and light-receiving member 238 which are seen from the direction of arrow X of Figure 3.
  • five conductors 1 starting with conductor 1c are a single unit and the first conductor of each unit are detected by the detecting device 237, 238 and comb members 250a, 250b...250n are associated with each unit of five conductors of cable 5 to accurately position them if they are misaligned.
  • FIGS. 5A, 5B are views looking in the directions of arrows X and Y of Figure 3 showing the front and side views of comb members 250, detecting device 237, 238 detecting conductor 1c, conductors 1, cable 5 and clamping members 214 clamped onto jacket 2a.
  • conductor 1c is adjusted in the following manner.
  • Motor 212 is operated thereby rotating eccentric cam 217 which is mounted on the shaft of motor 212.
  • Cam 217 engages one of the legs of a U-shaped member 218, which is secured to a plate 213a on which cylinder 213 and clamping members 214 are mounted, thereby moving plate 213a along track 219 in the directions of arrows L or M.
  • This also moves jacket 2a and the front end of cable 5 in the same direction thereby moving conductor 1c and the other conductors of this unit until conductor 1c is detected by the detecting device 237, 238 and motor 212 stops.
  • Comb member 250a is then moved downward so that the conductors of this unit are positioned between teeth 251a as described above.
  • a disc 220 is mounted on the shaft of motor 212 and the position of notch 220a of disc 220 detected by photoelectric device 221 will determine which direction motor 212 will operate to move the front end of cable 5 so that conductor 1c is detected by the detecting device 237, 238.
  • Motor 231 then operates to move the detecting device 237, 238 to detect the next first conduct 1d of the next unit of five conductors, as shown in Figure 7. If conductor 1d is correctly positioned, comb member 250b is operated as heretofore described so that these conductors are positioned between teeth 251b of comb member 250b. If, on the other hand, conductor 1d is incorrectly positioned, then the front end of cable 5 is moved in the direction of arrows L or M, as heretofore described whereafter the conductors are positioned between the teeth 251b of comb member 250b.
  • Cylinder 291 of comb drive device 290 is operated thereby moving lower comb member 280 upwardly in the direction of arrow O so that conductors 1 are positioned between teeth 281 of comb member 280; the teeth 281 being the same number of teeth 251 of comb members 250 so that conductors 1 are supported between comb members 250 and comb member 280 and the spacings are maintained therebetween on each side of member 272, as shown in Figure 9.
  • Cylinder 273 of conductor-cutting and bending device 270 is next operated and block 273a to which upper member 274 is mounted is moved downwardly while being guided along spaced parallel rods 275.
  • Conductor-bending and cutting-member 274 includes cutting member 274a which along with an edge of upper surface 272a cuts conductors 1 and bending member 274b which has teeth that engage and bend the front ends 1e of conductors 1b into engagement with lower surface 272b, as shown in Figures 10, 11 and 13.
  • Cylinder 213 is operated opening clamping members 214; motor 212 operates returning eccentric cam 217 and plate 213a to its original position on rail 219; cylinder 211 is operated moving plate 211a along rail 215 to its original position in the direction of arrow P; cylinder 261 is operated thereby moving comb members 250 to their original positions; cylinders 271 and 273 are operated lowering comb member 272 and raising cutting and bending member 274; and motor 231 is operated moving sensing device 237, 238 to its original position.
  • Comb member 280 remains in its operated position, as shown in Figure 11, so that the conductors 1 are maintained in position and is then moved along frame 293 in the direction of arrow Q via member 292, as shown in Figure 3, thereby moving cable 5 to the next station at which the conductors 1a, 1b are welded to respective electrical contacts of an electrical connector(not shown) by a conventional welding device.
  • Comb member 280 is then moved downwardly by operation of cylinder 291 and returned to its original position via member 292 or comb member 280 can be moved along frame 293 to another downstream station for further operations on the cable and connector assembly via member 292 to maintain the conductors in proper spaced relationship.
  • the above-described operations of the cable-preparing apparatus are automatically, continuously and rapidly repeated to accurately adjust and bend conductors of flat cables for termination to electrical contacts of electrical connectors thereby forming reliable electrical cable assemblies at a rapid rate.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
EP89906969A 1988-06-02 1989-05-22 Flat cable terminating apparatus Expired - Lifetime EP0374239B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP136003/88 1988-06-02
JP63136003A JP2673360B2 (ja) 1988-06-02 1988-06-02 平形ケーブル芯線間隔調整装置及び端末処理装置

Publications (2)

Publication Number Publication Date
EP0374239A1 EP0374239A1 (en) 1990-06-27
EP0374239B1 true EP0374239B1 (en) 1993-11-10

Family

ID=15164918

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89906969A Expired - Lifetime EP0374239B1 (en) 1988-06-02 1989-05-22 Flat cable terminating apparatus

Country Status (5)

Country Link
EP (1) EP0374239B1 (ja)
JP (1) JP2673360B2 (ja)
KR (1) KR950004994B1 (ja)
DE (1) DE68910651T2 (ja)
WO (1) WO1989012336A1 (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107093832B (zh) * 2017-03-22 2023-11-21 杭州良淋电子科技股份有限公司 可弥补间距差值的柔性扁平线端子机
CN109411992B (zh) * 2018-12-13 2023-11-24 东莞市超日自动化设备科技有限公司 排线整线均分方法及其装置
US20220285052A1 (en) * 2021-03-05 2022-09-08 Onesubsea Ip Uk Limited Cable preparation and injection systems and methods

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2542743C2 (de) * 1975-09-25 1983-12-29 kabelmetal electro GmbH, 3000 Hannover Verfahren zur lagerichtigen Positionierung von Rundleitungen
DE2806945C2 (de) * 1978-02-16 1985-05-02 Siemens AG, 1000 Berlin und 8000 München Vorrichtung zur Abtrennung von Abschnitten eines langgestreckten Gutes
CA1165102A (en) * 1980-06-09 1984-04-10 Amp Incorporated Device for combing electrical conductors
US4722692A (en) * 1986-01-06 1988-02-02 Minnesota Mining And Manufacturing Company Cable termination assembly, nipping and knuckling machine, and method
GB8610322D0 (en) * 1986-04-28 1986-06-04 Thomas & Betts International Cable supporting apparatus

Also Published As

Publication number Publication date
DE68910651T2 (de) 1994-02-24
KR950004994B1 (ko) 1995-05-16
KR900702605A (ko) 1990-12-07
EP0374239A1 (en) 1990-06-27
DE68910651D1 (de) 1993-12-16
JPH01307184A (ja) 1989-12-12
WO1989012336A1 (en) 1989-12-14
JP2673360B2 (ja) 1997-11-05

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