WO2014200069A1 - Flat-cable connection structure - Google Patents

Flat-cable connection structure Download PDF

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Publication number
WO2014200069A1
WO2014200069A1 PCT/JP2014/065623 JP2014065623W WO2014200069A1 WO 2014200069 A1 WO2014200069 A1 WO 2014200069A1 JP 2014065623 W JP2014065623 W JP 2014065623W WO 2014200069 A1 WO2014200069 A1 WO 2014200069A1
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WO
WIPO (PCT)
Prior art keywords
flat cable
covering portion
terminal
connection structure
conductors
Prior art date
Application number
PCT/JP2014/065623
Other languages
French (fr)
Japanese (ja)
Inventor
雅仁 尾崎
Original Assignee
矢崎総業株式会社
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 矢崎総業株式会社 filed Critical 矢崎総業株式会社
Publication of WO2014200069A1 publication Critical patent/WO2014200069A1/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
    • 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
    • H01R12/65—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures characterised by the terminal
    • H01R12/67—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures characterised by the terminal insulation penetrating terminals
    • H01R12/675—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures characterised by the terminal insulation penetrating terminals with contacts having at least a slotted plate for penetration of cable insulation, e.g. insulation displacement contacts for round conductor flat cables
    • 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
    • H01R13/46—Bases; Cases
    • H01R13/502—Bases; Cases composed of different pieces
    • H01R13/506—Bases; Cases composed of different pieces assembled by snap action of the parts
    • 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
    • H01R4/2425—Flat plates, e.g. multi-layered flat plates
    • H01R4/2429—Flat plates, e.g. multi-layered flat plates mounted in an insulating base
    • H01R4/2433—Flat plates, e.g. multi-layered flat plates mounted in an insulating base one part of the base being movable to push the cable into the slot

Definitions

  • the present invention relates to a connection structure for connecting a flat cable (FC) to a terminal.
  • a flat cable connection structure is proposed in Patent Document 1.
  • the connection structure of the flat cable 100 is connected using the terminal 103 of FIG. 1A.
  • the terminal 103 includes a terminal connection portion 101 into which a mating terminal (not shown) is inserted, and a cable connection portion 102 connected to the rear of the terminal connection portion 101.
  • the terminal 103 is integrally formed by bending a conductive metal (not shown) having a desired shape.
  • the cable connecting portion 102 includes a plurality of press contact terminal portions 104 that are erected at intervals on both sides in the longitudinal direction, and a set of holding portions 105 that face each other.
  • the press contact terminal portion 104 and the holding portion 105 are provided in a direction along the longitudinal direction of the terminal 103.
  • the upper portion of the press contact terminal portion 104 is formed in a blade shape.
  • the flat cable 100 includes a plurality of conductors 106 arranged in parallel at intervals, and an insulating covering portion 107 that covers these conductors 106.
  • the flat cable 100 is connected to the terminal 103 as follows. That is, the flat cable 100 is placed from above the terminal 103, and as shown in FIG. 1C, each press-contact terminal portion 104 is pierced at a position facing the cover portion 107 of the flat cable 100, and each press-contact that penetrates the cover portion 107 The distal end portion of the terminal portion 104 is bent and caulked in an arc shape so that each press contact terminal portion 104 is electrically connected to the conductor 106.
  • the pair of holding portions 105 are inserted into the slits 108 of the flat cable 100, and each holding portion 105 is crimped and clamped to the flat cable 100 (see FIG. 1B).
  • the press contact terminal portion 104 of the terminal 103 pierces the covering portion 107 of the flat cable 100 and crimps the pair of holding portions 105. For this reason, the holding portion 105 and the flat cable 100 are merely in close contact with each other. For example, when the caulking is loose, it is assumed that the caulking is later loosened due to vibration. In such a case, as shown in FIG. 1B, the flat cable 100 is securely held against the pulling force F (tensile resistance). Can't)
  • the present invention provides a flat cable connection structure that can reliably hold the flat cable by a simple fixing operation against the force acting in the pulling direction of the flat cable, and can improve the reliability of the flat cable connection. With the goal.
  • a flat cable connection structure includes a flat cable having a plurality of conductors arranged at intervals and a covering portion covering the plurality of conductors, and a housing into which the flat cable is inserted. And a press contact terminal portion fixed to the housing and inserted into the flat cable inserted into the housing, and a clamp blade fixed to the housing and inserted into the flat cable inserted into the housing.
  • the said press-contact terminal part stabbed into the said flat cable press-contacts to the corresponding conductor of these conductors.
  • the flat cable is formed by folding and placing a tongue covering portion formed by cutting at a location of the covering portion between the plurality of adjacent conductors on the covering portion between the plurality of conductors. It has a layer covering.
  • the clamp blade pierced into the flat cable is pierced into the multi-layer covering portion to clamp the flat cable.
  • the notch of the portion of the covering portion may be located in a range including a region where the pressure contact terminal portion is in pressure contact with a corresponding conductor of the plurality of conductors.
  • the flat cable connection structure may further include a holder for holding the flat cable and fixing the flat cable to the housing.
  • the tongue covering portion formed on the flat cable is folded and placed on the covering portion between adjacent conductors to form a plurality of covering portions, and the clamp blade is inserted into the covering portion of the plurality of layers.
  • the flat cable is clamped. For this reason, it is possible to improve the shearing force of the covering portion at the cut of the clamp blade, and a simple fixing operation of piercing the clamp blade is sufficient, so that the flat cable is resisted against the force acting in the pulling direction of the flat cable. It can be securely held by simple fixing work. Therefore, the reliability regarding the connection of a flat cable can be improved.
  • FIG. 1A is a perspective view of a terminal before connecting to a flat cable according to a related connection structure.
  • FIG. 1B is a perspective view of the connection structure in a state in which the terminal is connected to the flat cable according to the related connection structure.
  • FIG. 1C is a perspective view of a connection structure in a state where a terminal is pierced into a flat cable according to a related connection structure.
  • FIG. 2A is a perspective view of the connector of the connection structure according to the embodiment of the present invention.
  • 2B is a perspective view of the connector as viewed from the opposite side of FIG. 2A.
  • FIG. 3 is a rear view of the connector of the connection structure according to the embodiment of the present invention.
  • FIG. 1A is a perspective view of a terminal before connecting to a flat cable according to a related connection structure.
  • FIG. 1B is a perspective view of the connection structure in a state in which the terminal is connected to the flat cable according to the related connection structure.
  • FIG. 4A is a perspective view of the connection structure according to the embodiment of the present invention before the first flat cable is connected to the terminal of the lower housing.
  • FIG. 4B is a perspective view of the connection structure according to the embodiment of the present invention with the first flat cable connected to the terminal of the lower housing.
  • FIG. 5A is an enlarged cross-sectional view of the VA portion of FIG.
  • FIG. 5B is another cross-sectional view illustrating a process of closely attaching the tongue covering portion to the covering portion.
  • FIG. 6A is a perspective view of the connection structure according to the exemplary embodiment of the present invention before the second flat cable is connected to the terminal of the upper housing.
  • FIG. 6B is a perspective view of the connection structure according to the embodiment of the present invention with the second flat cable connected to the terminal of the upper housing.
  • FIG. 7A is a perspective view of a lower die with a cutting blade used for slit processing of a covering portion according to an embodiment of the present invention.
  • FIG. 7B is an enlarged perspective view of the VIIB portion of FIG. 7A.
  • FIG. 8A is a perspective view of an upper and lower mold used for slit processing of a covering portion according to an embodiment of the present invention.
  • FIG. 8B is a front view showing a state before the slit processing of the covering portion according to the embodiment of the present invention.
  • FIG. 8C is a front view at the time of slit processing of the covering according to the embodiment of the present invention.
  • FIG. 8D is a front view after slit processing of the covering according to the embodiment of the present invention.
  • FIG. 8A is a perspective view of a lower die with a cutting blade used for slit processing of a covering portion according to an embodiment of the present invention.
  • FIG. 7B is an enlarged perspective view of the VIIB portion of FIG. 7
  • FIG. 9 is a perspective view of a main part showing a state in which the cutting blade penetrates the covering portion of the first flat cable in the connection structure according to the embodiment of the present invention.
  • FIG. 10A is a perspective view of a flat cable in which slit processing is performed on the covering portion according to the embodiment of the present invention.
  • FIG. 10B is a perspective view illustrating a process of bending the tongue covering portion according to the embodiment of the present invention.
  • FIG. 10C is a perspective view of a state where the tongue piece covering portion is folded on the covering portion according to the embodiment of the present invention.
  • FIG. 11 is a perspective view illustrating a process of attaching the first flat cable to the first holder in the connection structure according to the embodiment of the present invention.
  • FIG. 10A is a perspective view of a flat cable in which slit processing is performed on the covering portion according to the embodiment of the present invention.
  • FIG. 10B is a perspective view illustrating a process of bending the tongue covering portion according to the embodiment
  • FIG. 12 is a perspective view illustrating a process of mounting the first holder with a flat cable on the lower housing in the connection structure according to the embodiment of the present invention.
  • FIG. 13 is a perspective view of the lower housing in which the first holder with the flat cable is mounted in the connection structure according to the embodiment of the present invention.
  • FIG. 14 is a perspective view for explaining a process of attaching the upper housing to the lower housing in the connection structure according to the embodiment of the present invention.
  • FIG. 15 is a perspective view of an integrated lower housing and upper housing in the connection structure according to the embodiment of the present invention.
  • FIG. 16 is a perspective view illustrating a process of mounting the second holder with the flat cable on the upper housing in the connection structure according to the embodiment of the present invention.
  • connection structure of the first and second flat cables (FC) 4 and 8 according to the embodiment of the present invention is applied to the connector 1 according to the present embodiment. This will be described below.
  • the connector 1 includes a lower housing 2, a plurality of first terminals 3 fixed to the lower housing 2, a first flat cable (FC) 4 connected to the plurality of first terminals 3, and a first flat cable 4.
  • FC first flat cable
  • the connector 1 includes a lower housing 2, a plurality of first terminals 3 fixed to the lower housing 2, a first flat cable (FC) 4 connected to the plurality of first terminals 3, and a first flat cable 4.
  • the upper housing 6 assembled to the lower housing 2 from the upper surface of the first holder 5, the plurality of second terminals 7 fixed to the upper housing 6, and the plurality of second terminals 7
  • the second flat cable (FC) 8 and the second holder 9 that holds the second flat cable 8 are provided.
  • the lower housing 2 is provided with a plurality of terminal accommodating chambers 2a.
  • the plurality of terminal accommodating chambers 2a are arranged in parallel at equal intervals.
  • the plurality of first terminals 3 are accommodated in the terminal accommodating chambers 2 a of the lower housing 2.
  • the first terminal 3 has a terminal connection portion (not shown) into which a mating terminal (not shown) is inserted, and a cable connection portion 32 connected to the rear of the terminal connection portion, and these have a desired shape.
  • the conductive metal (not shown) is integrally formed by bending.
  • the cable connection portion 32 includes two press contact terminal portions 33 and one clamp blade 34 which are provided upright at intervals in the longitudinal direction.
  • Each pressure contact terminal portion 33 has a U-shaped conductor insertion hole 35.
  • Each press contact terminal portion 33 has an inner peripheral surface forming a conductor insertion hole 35 formed in a blade shape, and the inner peripheral portion of the conductor insertion hole 35 bites into a conductor 41 of the first flat cable 4 described later. Make electrical contact.
  • each press-contact terminal part 33 is provided in the direction orthogonal to the longitudinal direction of the conductor 41, The upper part is formed in the blade shape.
  • the clamp blade 34 is formed in the same shape as the press contact terminal portion 33.
  • the clamp blade 34 has a U-shaped insertion hole 36, and an inner peripheral surface forming the insertion hole 36 is formed in a blade shape.
  • the width of the insertion hole 36 is set wider than the diameter of the conductor 41. Thereby, the insertion hole 36 bites into only the covering portion 42 of the first flat cable 4 described later, and does not bite into the conductor 41 itself.
  • the clamp blade 34 is disposed behind the press contact terminal portion 33 and is provided in the same direction as the press contact terminal portion 33, and an upper portion thereof is formed in a blade shape.
  • the first holder 5 has a flat cable insertion chamber 51. The distal end portion of the first flat cable 4 is inserted into the cable insertion chamber 51 and held.
  • the upper housing 6 is provided with a plurality of terminal accommodating chambers 6a.
  • the plurality of terminal accommodating chambers 6a are arranged in parallel at equal intervals.
  • the plurality of second terminals 7 are accommodated in the terminal accommodating chambers 6 a of the upper housing 6.
  • the second terminal 7 has a terminal connection part (not shown) into which a mating terminal (not shown) is inserted, and a cable connection part 72 connected to the rear of the terminal connection part, which is described later
  • the clamp blade 74 is configured in the same manner as the first terminal 3.
  • the cable connection portion 72 has two press contact terminal portions 73 and one clamp blade 74 which are erected at intervals in the longitudinal direction.
  • Each press-contact terminal portion 73 has a U-shaped conductor insertion hole 75, and an inner peripheral surface forming the conductor insertion hole 75 is formed in a blade shape.
  • the clamp blade 74 is disposed behind the press contact terminal portion 73 and has a shape different from that of the press contact terminal portion 73.
  • the clamp blade 74 is provided in a direction orthogonal to the press contact terminal portion 73 and in a direction along the longitudinal direction of the conductor 81 of the second flat cable 8 described later, and its upper end is formed in a sharp blade shape.
  • the second holder 9 has a flat cable insertion chamber 91.
  • the distal end portion of the second flat cable 8 is inserted into the cable insertion chamber 91 and held.
  • the first flat cable 4 is formed in a flat shape from a plurality of conductors 41 arranged in parallel and spaced from each other, and an insulating covering portion 42 that covers these conductors 41. At the end in the longitudinal direction of the covering portion 42, a tongue piece covering portion 43 that is formed by cutting and is folded and placed on the covering portion 42 between the adjacent conductors 41 is provided.
  • the lower die 11 and the upper die 12 shown in FIGS. 7A and 7B and FIGS. 8A to 8D are used.
  • the slit 44 shown in FIGS. 10A to 10B is formed.
  • the lower die 11 has a short blade 13 provided with a cut in the vicinity of the end portion in the longitudinal direction of the covering portion 42, and the longitudinal direction of the covering portion 42 from both ends of the short blade 13
  • a cutting blade 15 comprising two long blades 14 extending in the direction to be cut and provided with cuts on both sides of the covering portion 42 is provided.
  • the upper mold 12 is provided with a blade base 16 that receives the tip of the cutting blade 15.
  • the notch (slit 44) of the covering portion 42 is formed in a range including a region where the pressure contact terminal portion 33 is in pressure contact with the conductor 41.
  • the second flat cable 8 is also formed in a flat shape from a plurality of conductors 81 arranged in parallel and spaced from each other, and an insulating covering portion 82 that covers these conductors 81. Yes.
  • a slit 84 is formed by cutting, and a tongue piece covering portion 83 that is folded and placed on the covering portion 82 between adjacent conductors 81 is provided.
  • the notch (slit 84) of the covering portion 82 is also formed in a range including a region where the pressure contact terminal portion 33 is pressed against the conductor 81.
  • the processing work of the first and second flat cables 4 and 8 will be described.
  • the first flat cable 4 is placed on the lower mold 11 and, as shown in FIG. 8C, the upper mold 12 is pressed from above, As shown in FIG. 8D, the pressed state by the lower mold 11 and the upper mold 12 is released.
  • the cutting blade 15 penetrates the covering portion 42 of the first flat cable 4 (see FIG. 9), and a slit 44 is formed in the covering portion 42 of the first flat cable 4 as shown in FIG. 10A.
  • the slit 44 is formed in the vicinity of the end in the longitudinal direction of the covering portion 42, and has one short slit groove 45 extending in a direction orthogonal to the longitudinal direction of the covering portion 42, and both ends of the slit groove 45. It consists of two long slit grooves 46 extending a predetermined distance along the longitudinal direction. As a result, a rectangular tongue piece covering portion 43 surrounded by the slit grooves 45 and 46 is formed in the covering portion 42. Since the rear end portions of the two slit grooves 46 are not punched, one side of the rectangular tongue piece covering portion 43 is continuous with the covering portion 42. That is, no slit groove that connects the rear ends of the slit grooves 46 is provided.
  • the tongue covering portion 43 is erected as shown in FIG. 10B, and then the tongue covering portion 43 is moved backward as shown in FIG. 10C. And folded on the covering portion 42 between the adjacent conductors 41. At this time, adhesion may be performed by applying an adhesive (not shown) between the covering portion 42 and the tongue piece covering portion 43.
  • the second flat cable 8 is processed in the same procedure as above.
  • the assembly work of the connector 1 will be described.
  • the first flat cable 4 is attached to the first holder 5.
  • the lower housing 2 including the first flat cable 4 held by the first holder 5 as shown in FIG. 13 by mounting the first holder 5 on the lower housing 2.
  • the laminated covering portion 42 and tongue covering portion 43 are brought into close contact with each other, and the pressing contact portion 33 penetrates the covering portion 42, and the inner peripheral portion of the conductor insertion hole 35 bites into the conductor 41 to make electrical contact.
  • the clamp blade 34 penetrates the laminated covering portion 42 and tongue piece covering portion 43.
  • the inner peripheral portion of the insertion hole 36 of the clamp blade 34 bites into the covering portion 42 around the conductor 41, but does not bite into the conductor 41 itself.
  • the upper housing 6 is mounted on the lower housing 2 to obtain an integrated lower housing 2 and upper housing 6 as shown in FIG.
  • the second holder 9 with the second flat cable 8 is mounted on the upper housing 6.
  • the second flat cable 8 is pressed against the plurality of second terminals 7 by the second holder 9, so that the laminated covering portion 82 and tongue piece covering portion 83 are formed. Adhere to each other.
  • the press-contact terminal portion 73 penetrates the covering portion 82, and the inner peripheral portion of the conductor insertion hole 75 bites into the conductor 81 to make electrical contact.
  • the clamp blade 74 pierces the covering portion 82 at the bridge portion between the conductors 81 but does not bite into the conductor 81 itself.
  • the covering portion 82 and the tongue piece covering portion 83 laminated in two layers were pierced by the clamp blade 74 of the second terminal 7 to clamp the second flat cable 8. For this reason, it is possible to improve the shearing force at the cuts of the covering portions 82 and 83 by the clamp blade 74, and a simple fixing operation of piercing the clamp blade 74 is sufficient. Accordingly, the second flat cable 8 can be more reliably held against the force acting in the pulling direction of the second flat cable 8.
  • the covering portion 42 and the tongue piece covering portion 43 laminated in two layers are pierced by the clamp blade 34 of the first terminal 3 and the first flat cable 4 is clamped, the covering portions 42, 47 at the cuts of the clamp blade 34. It is possible to improve the shearing force. Therefore, the first flat cable 4 can be reliably held by a simple fixing operation against the force acting in the pulling direction of the first flat cable 4.
  • the notch of the covering portion 42 is formed in a range including a region where the pressure contact terminal portion 33 of the first terminal 3 is in pressure contact with the conductor 41. For this reason, the shift between the pitch between the press contact terminal portions 33 and the pitch between the conductors 41 is absorbed, and the conductor 41 can be reliably pressed into contact with the press contact terminal portion 33 so that proper electrical connection can be achieved.
  • the notch of the covering portion 82 is formed in a range including a region where the pressure contact terminal portion 73 of the second terminal 7 is in pressure contact with the conductor 81.
  • first and second flat cables 4 and 8 When the first and second flat cables 4 and 8 are attached to the lower housing 2 and the upper housing 6, the first and second flat cables 4 and 8 are connected to the terminals 3 and 7 by the first and second holders 5 and 9. Press contact. For this reason, the first and second flat cables 4 and 8 can be securely attached to the first and second terminals 3 and 7.
  • the clamp blades 34 and 74 of the first and second terminals 3 and 7 pierce the covering portions 42 and 82 and the tongue piece covering portions 43 and 83 laminated in two layers.
  • the location may be a covering portion laminated in three or more layers.
  • the clamp blade 34 of the first terminal 3 is erected in the same direction as the press contact terminal portion 33 (width direction of the first flat cable 4), but the clamp blade 74 of the second terminal 7 is connected to the press contact terminal portion 73. It is erected in the orthogonal direction (longitudinal direction of the second flat cable 8). Since the clamp blade 34 of the first terminal 3 receives the pulling force of the first flat cable 4 over the entire front surface of the clamp blade 34, the holding force is high. Since the clamp blade 74 of the second terminal 7 has a simple structure, cost reduction and dimensional stability can be achieved.
  • connection structure of the flat cable is applied to the connector 1, but is not limited to this.
  • the present invention may be applied to a connection structure that connects a flat cable to a vehicle-mounted device (such as a vehicle interior lighting device).
  • vehicle-mounted device such as a vehicle interior lighting device

Abstract

This flat cable (8) has a multilayered jacket section (82, 83) formed by folding jacket tongues (83) back, onto a jacket section (82), between a plurality of adjacent conductors (81). Said jacket tongues (83) are formed by slits in the jacket section (82) between the conductors (81). Clamping blades (74) that are affixed to a housing (6) and pierce the flat cable (8) clamp the flat cable (8) by piercing the multilayered jacket section (82, 83).

Description

フラットケーブルの接続構造Flat cable connection structure
　本発明は、フラットケーブル（ＦＣ）を端子に接続する接続構造に関する。 The present invention relates to a connection structure for connecting a flat cable (FC) to a terminal.
　フラットケーブルの接続構造が、特許文献１に提案されている。このフラットケーブル１００の接続構造は、図１Ａの端子１０３を用いて接続される。端子１０３は、相手端子（図示せず）が挿入される端子接続部１０１と、端子接続部１０１の後方に連結されたケーブル接続部１０２とを備える。端子１０３は、所望形状の導電性金属（図示せず）を折り曲げ加工して一体に形成されている。ケーブル接続部１０２は、長手方向の両側に間隔を置いて立設された複数の圧接端子部１０４と、互いに向かい合う１組の保持部１０５とを備える。圧接端子部１０４及び保持部１０５は、端子１０３の長手方向に沿う向きに設けられている。圧接端子部１０４の上部は、刃形状に形成されている。フラットケーブル１００は、図１Ｂに示すように、間隔を置いて平行に配置された複数の導体１０６と、これらの導体１０６を被覆する絶縁性の被覆部１０７とを備える。 A flat cable connection structure is proposed in Patent Document 1. The connection structure of the flat cable 100 is connected using the terminal 103 of FIG. 1A. The terminal 103 includes a terminal connection portion 101 into which a mating terminal (not shown) is inserted, and a cable connection portion 102 connected to the rear of the terminal connection portion 101. The terminal 103 is integrally formed by bending a conductive metal (not shown) having a desired shape. The cable connecting portion 102 includes a plurality of press contact terminal portions 104 that are erected at intervals on both sides in the longitudinal direction, and a set of holding portions 105 that face each other. The press contact terminal portion 104 and the holding portion 105 are provided in a direction along the longitudinal direction of the terminal 103. The upper portion of the press contact terminal portion 104 is formed in a blade shape. As shown in FIG. 1B, the flat cable 100 includes a plurality of conductors 106 arranged in parallel at intervals, and an insulating covering portion 107 that covers these conductors 106.
　フラットケーブル１００は、次のようにして端子１０３に接続する。すなわち、フラットケーブル１００を端子１０３の上方から載置し、図１Ｃに示すように、フラットケーブル１００の被覆部１０７に対向する箇所で各圧接端子部１０４を突き刺し、被覆部１０７を突き抜けた各圧接端子部１０４の先端部を折曲げて円弧状に加締めて各圧接端子部１０４を導体１０６に導通させる。同時に、一対の保持部１０５をフラットケーブル１００のスリット１０８に挿入し、各保持部１０５を加締めてフラットケーブル１００にクランプする（図１Ｂ参照）。 The flat cable 100 is connected to the terminal 103 as follows. That is, the flat cable 100 is placed from above the terminal 103, and as shown in FIG. 1C, each press-contact terminal portion 104 is pierced at a position facing the cover portion 107 of the flat cable 100, and each press-contact that penetrates the cover portion 107 The distal end portion of the terminal portion 104 is bent and caulked in an arc shape so that each press contact terminal portion 104 is electrically connected to the conductor 106. At the same time, the pair of holding portions 105 are inserted into the slits 108 of the flat cable 100, and each holding portion 105 is crimped and clamped to the flat cable 100 (see FIG. 1B).
特開２００３‐２１７７２１号公報JP 2003-217721 A
　上記の関連技術では、端子１０３の圧接端子部１０４がフラットケーブル１００の被覆部１０７を突き刺すと共に一対の保持部１０５を加締めている。このため、保持部１０５とフラットケーブル１００間は、単に密着しているのみである。例えば、加締めが緩い場合、振動によって加締が後で緩くなる場合も想定され、かかる場合には、図１Ｂに示すように、フラットケーブル１００の引っ張り力Ｆに対して確実に保持（耐引張力）できない。 In the above related technology, the press contact terminal portion 104 of the terminal 103 pierces the covering portion 107 of the flat cable 100 and crimps the pair of holding portions 105. For this reason, the holding portion 105 and the flat cable 100 are merely in close contact with each other. For example, when the caulking is loose, it is assumed that the caulking is later loosened due to vibration. In such a case, as shown in FIG. 1B, the flat cable 100 is securely held against the pulling force F (tensile resistance). Can't)
　また、一対の保持部１０５を加締める必要があるため、端子１０３とフラットケーブル１００間の固定作業が必要であり手間が掛かる。 Further, since it is necessary to crimp the pair of holding portions 105, it is necessary to fix the terminal 103 and the flat cable 100, which is troublesome.
　本発明は、フラットケーブルの引き抜き方向に働く力に抗してフラットケーブルを簡単な固定作業で確実に保持でき、フラットケーブルの接続に関する信頼性を高めることができるフラットケーブルの接続構造を提供することを目的とする。 The present invention provides a flat cable connection structure that can reliably hold the flat cable by a simple fixing operation against the force acting in the pulling direction of the flat cable, and can improve the reliability of the flat cable connection. With the goal.
　本発明の実施形態に係るフラットケーブルの接続構造は、間隔を置いて配置された複数の導体と前記複数の導体を被覆する被覆部とを有するフラットケーブルと、前記フラットケーブルが挿入されるハウジングと、前記ハウジングに固定され、前記ハウジングに挿入された前記フラットケーブルに突き刺さる圧接端子部と、前記ハウジングに固定され、前記ハウジングに挿入された前記フラットケーブルに突き刺さるクランプ刃とを備える。前記フラットケーブルに突き刺さった前記圧接端子部は、前記複数の導体の対応する導体に圧接する。前記フラットケーブルは、隣り合う前記複数の導体間の前記被覆部の箇所に切り込みによって形成された舌片被覆部を前記複数の導体間の前記被覆部上に折り返して載置することで形成した複数層の被覆部を有する。前記フラットケーブルに突き刺さった前記クランプ刃は、前記複数層の被覆部に突き刺さって前記フラットケーブルをクランプする。 A flat cable connection structure according to an embodiment of the present invention includes a flat cable having a plurality of conductors arranged at intervals and a covering portion covering the plurality of conductors, and a housing into which the flat cable is inserted. And a press contact terminal portion fixed to the housing and inserted into the flat cable inserted into the housing, and a clamp blade fixed to the housing and inserted into the flat cable inserted into the housing. The said press-contact terminal part stabbed into the said flat cable press-contacts to the corresponding conductor of these conductors. The flat cable is formed by folding and placing a tongue covering portion formed by cutting at a location of the covering portion between the plurality of adjacent conductors on the covering portion between the plurality of conductors. It has a layer covering. The clamp blade pierced into the flat cable is pierced into the multi-layer covering portion to clamp the flat cable.
　また、前記被覆部の箇所の切り込みは、前記圧接端子部が前記複数の導体の対応する導体に圧接する領域を含む範囲に位置してもよい。 Further, the notch of the portion of the covering portion may be located in a range including a region where the pressure contact terminal portion is in pressure contact with a corresponding conductor of the plurality of conductors.
　また、上記フラットケーブルの接続構造は、前記フラットケーブルを保持し、前記フラットケーブルを前記ハウジングに固定するホルダをさらに備えてもよい。 The flat cable connection structure may further include a holder for holding the flat cable and fixing the flat cable to the housing.
　上記構成によれば、フラットケーブルに形成した舌片被覆部を隣り合う導体間の被覆部上に折り返して載置することで複数層の被覆部とし、この複数層の被覆部にクランプ刃を突き刺してフラットケーブルをクランプしている。このため、クランプ刃の切れ目における被覆部のせん断力の向上を図ることができると共に、クランプ刃を突き刺すという簡単な固定作業で良いため、フラットケーブルの引き抜き方向に働く力に抗してフラットケーブルを簡単な固定作業で確実に保持することができる。従って、フラットケーブルの接続に関する信頼性を高めることができる。 According to the above configuration, the tongue covering portion formed on the flat cable is folded and placed on the covering portion between adjacent conductors to form a plurality of covering portions, and the clamp blade is inserted into the covering portion of the plurality of layers. The flat cable is clamped. For this reason, it is possible to improve the shearing force of the covering portion at the cut of the clamp blade, and a simple fixing operation of piercing the clamp blade is sufficient, so that the flat cable is resisted against the force acting in the pulling direction of the flat cable. It can be securely held by simple fixing work. Therefore, the reliability regarding the connection of a flat cable can be improved.
図１Ａは、関連する接続構造に係る、フラットケーブルに接続する前の端子の斜視図である。FIG. 1A is a perspective view of a terminal before connecting to a flat cable according to a related connection structure. 図１Ｂは、関連する接続構造に係る、フラットケーブルに端子を接続した状態の接続構造の斜視図である。FIG. 1B is a perspective view of the connection structure in a state in which the terminal is connected to the flat cable according to the related connection structure. 図１Ｃは、関連する接続構造に係る、フラットケーブルに端子を突き刺した状態の接続構造の斜視図である。FIG. 1C is a perspective view of a connection structure in a state where a terminal is pierced into a flat cable according to a related connection structure. 図２Ａは、本発明の実施形態に係る接続構造のコネクタの斜視図である。FIG. 2A is a perspective view of the connector of the connection structure according to the embodiment of the present invention. 図２Ｂは、図２Ａの反対側から見たコネクタの斜視図である。2B is a perspective view of the connector as viewed from the opposite side of FIG. 2A. 図３は、本発明の実施形態に係る接続構造のコネクタを後方から見た図である。FIG. 3 is a rear view of the connector of the connection structure according to the embodiment of the present invention. 図４Ａは、本発明の実施形態に係る接続構造の、ロアハウジングの端子に第１フラットケーブルを接続する前の状態の斜視図である。FIG. 4A is a perspective view of the connection structure according to the embodiment of the present invention before the first flat cable is connected to the terminal of the lower housing. 図４Ｂは、本発明の実施形態に係る接続構造の、ロアハウジングの端子に第１フラットケーブルを接続した状態の斜視図である。FIG. 4B is a perspective view of the connection structure according to the embodiment of the present invention with the first flat cable connected to the terminal of the lower housing. 図５Ａは、図３のＶＡ部の拡大断面図である。FIG. 5A is an enlarged cross-sectional view of the VA portion of FIG. 図５Ｂは、舌片被覆部を被覆部に密着させる過程を説明する他の断面図である。FIG. 5B is another cross-sectional view illustrating a process of closely attaching the tongue covering portion to the covering portion. 図６Ａは、本発明の実施形態に係る接続構造の、アッパハウジングの端子に第２フラットケーブルを接続する前の状態の斜視図である。FIG. 6A is a perspective view of the connection structure according to the exemplary embodiment of the present invention before the second flat cable is connected to the terminal of the upper housing. 図６Ｂは、本発明の実施形態に係る接続構造の、アッパハウジングの端子に第２フラットケーブルを接続した状態の斜視図である。FIG. 6B is a perspective view of the connection structure according to the embodiment of the present invention with the second flat cable connected to the terminal of the upper housing. 図７Ａは、本発明の実施形態に係る、被覆部のスリット加工に用いられる切断刃付きの下金型の斜視図である。FIG. 7A is a perspective view of a lower die with a cutting blade used for slit processing of a covering portion according to an embodiment of the present invention. 図７Ｂは、図７ＡのＶＩＩＢ部の拡大斜視図である。FIG. 7B is an enlarged perspective view of the VIIB portion of FIG. 7A. 図８Ａは、本発明の実施形態に係る、被覆部のスリット加工に用いられる上下金型の斜視図である。FIG. 8A is a perspective view of an upper and lower mold used for slit processing of a covering portion according to an embodiment of the present invention. 図８Ｂは、本発明の実施形態に係る、被覆部のスリット加工前の状態の正面図である。FIG. 8B is a front view showing a state before the slit processing of the covering portion according to the embodiment of the present invention. 図８Ｃは、本発明の実施形態に係る、被覆部のスリット加工時の正面図である。FIG. 8C is a front view at the time of slit processing of the covering according to the embodiment of the present invention. 図８Ｄは、本発明の実施形態に係る、被覆部のスリット加工後の正面図である。FIG. 8D is a front view after slit processing of the covering according to the embodiment of the present invention. 図９は、本発明の実施形態に係る接続構造の、第１フラットケーブルの被覆部に切断刃が貫通した状態を示す要部斜視図である。FIG. 9 is a perspective view of a main part showing a state in which the cutting blade penetrates the covering portion of the first flat cable in the connection structure according to the embodiment of the present invention. 図１０Ａは、本発明の実施形態に係る、被覆部にスリット加工が施されたフラットケーブルの斜視図である。FIG. 10A is a perspective view of a flat cable in which slit processing is performed on the covering portion according to the embodiment of the present invention. 図１０Ｂは、本発明の実施形態に係る、舌片被覆部を折り曲げる過程を説明する斜視図である。FIG. 10B is a perspective view illustrating a process of bending the tongue covering portion according to the embodiment of the present invention. 図１０Ｃは、本発明の実施形態に係る、舌片被覆部を被覆部上に折り重ねた状態の斜視図である。FIG. 10C is a perspective view of a state where the tongue piece covering portion is folded on the covering portion according to the embodiment of the present invention. 図１１は、本発明の実施形態に係る接続構造において、第１ホルダに第１フラットケーブルを取り付ける過程を説明する斜視図である。FIG. 11 is a perspective view illustrating a process of attaching the first flat cable to the first holder in the connection structure according to the embodiment of the present invention. 図１２は、本発明の実施形態に係る接続構造において、フラットケーブル付き第１ホルダをロアハウジングに装着する過程を説明する斜視図である。FIG. 12 is a perspective view illustrating a process of mounting the first holder with a flat cable on the lower housing in the connection structure according to the embodiment of the present invention. 図１３は、本発明の実施形態に係る接続構造において、フラットケーブル付き第１ホルダを装着したロアハウジングの斜視図である。FIG. 13 is a perspective view of the lower housing in which the first holder with the flat cable is mounted in the connection structure according to the embodiment of the present invention. 図１４は、本発明の実施形態に係る接続構造において、ロアハウジングにアッパハウジングを装着する過程を説明する斜視図である。FIG. 14 is a perspective view for explaining a process of attaching the upper housing to the lower housing in the connection structure according to the embodiment of the present invention. 図１５は、本発明の実施形態に係る接続構造において、一体化したロアハウジング及びアッパハウジングの斜視図である。FIG. 15 is a perspective view of an integrated lower housing and upper housing in the connection structure according to the embodiment of the present invention. 図１６は、本発明の実施形態に係る接続構造において、アッパハウジングにフラットケーブル付き第２ホルダを装着する過程を説明する斜視図である。FIG. 16 is a perspective view illustrating a process of mounting the second holder with the flat cable on the upper housing in the connection structure according to the embodiment of the present invention.
　以下、本発明の一実施形態を図面に基づいて説明する。 Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
　図２Ａ～図１６は、本発明の実施形態を示す。本実施形態に係るコネクタ１に、本発明の実施形態に係る第１及び第２フラットケーブル（ＦＣ）４、８の接続構造が適用されている。以下、説明する。 2A to 16 show an embodiment of the present invention. The connection structure of the first and second flat cables (FC) 4 and 8 according to the embodiment of the present invention is applied to the connector 1 according to the present embodiment. This will be described below.
　コネクタ１は、ロアハウジング２と、ロアハウジング２に固定された複数の第１端子３と、複数の第１端子３に接続される第１フラットケーブル（ＦＣ）４と、第１フラットケーブル４を保持する第１ホルダ５と、第１ホルダ５の上面よりロアハウジング２に組み付けられたアッパハウジング６と、アッパハウジング６に固定された複数の第２端子７と、複数の第２端子７に接続される第２フラットケーブル（ＦＣ）８と、第２フラットケーブル８を保持する第２ホルダ９とを備えている。 The connector 1 includes a lower housing 2, a plurality of first terminals 3 fixed to the lower housing 2, a first flat cable (FC) 4 connected to the plurality of first terminals 3, and a first flat cable 4. Connected to the first holder 5 to be held, the upper housing 6 assembled to the lower housing 2 from the upper surface of the first holder 5, the plurality of second terminals 7 fixed to the upper housing 6, and the plurality of second terminals 7 The second flat cable (FC) 8 and the second holder 9 that holds the second flat cable 8 are provided.
　ロアハウジング２には、複数の端子収容室２ａが設けられている。複数の端子収容室２ａは、等間隔に並列して配置されている。 The lower housing 2 is provided with a plurality of terminal accommodating chambers 2a. The plurality of terminal accommodating chambers 2a are arranged in parallel at equal intervals.
　複数の第１端子３は、ロアハウジング２の各端子収容室２ａに収容されている。第１端子３は、相手端子（図示せず）が挿入される端子接続部（図示せず）と、この端子接続部の後方に連結されたケーブル接続部３２とを有し、これらが所望形状の導電性金属（図示せず）を折り曲げ加工して一体に形成されている。ケーブル接続部３２は、長手方向に間隔を置いて立設された２箇所の圧接端子部３３と１箇所のクランプ刃３４とを有する。 The plurality of first terminals 3 are accommodated in the terminal accommodating chambers 2 a of the lower housing 2. The first terminal 3 has a terminal connection portion (not shown) into which a mating terminal (not shown) is inserted, and a cable connection portion 32 connected to the rear of the terminal connection portion, and these have a desired shape. The conductive metal (not shown) is integrally formed by bending. The cable connection portion 32 includes two press contact terminal portions 33 and one clamp blade 34 which are provided upright at intervals in the longitudinal direction.
　各圧接端子部３３は、Ｕ字状の導体挿入孔３５を有する。各圧接端子部３３は、導体挿入孔３５を形成する内周面が刃形状に形成されており、その導体挿入孔３５の内周部分が後述する第１フラットケーブル４の導体４１に食い込むことにより電気的に接触する。また、各圧接端子部３３は、導体４１の長手方向とは直交する向きに設けられ、その上部が刃形状に形成されている。 Each pressure contact terminal portion 33 has a U-shaped conductor insertion hole 35. Each press contact terminal portion 33 has an inner peripheral surface forming a conductor insertion hole 35 formed in a blade shape, and the inner peripheral portion of the conductor insertion hole 35 bites into a conductor 41 of the first flat cable 4 described later. Make electrical contact. Moreover, each press-contact terminal part 33 is provided in the direction orthogonal to the longitudinal direction of the conductor 41, The upper part is formed in the blade shape.
　クランプ刃３４は、圧接端子部３３と同様の形状に形成されている。クランプ刃３４は、Ｕ字状の挿入孔３６を有し、挿入孔３６を形成する内周面が刃形状に形成される。挿入孔３６の幅は、導体４１の直径よりも広く設定されている。これにより、挿入孔３６は、後述する第１フラットケーブル４の被覆部４２にのみ食い込み、導体４１自体には食い込まない。また、クランプ刃３４は、圧接端子部３３の後方に配置されると共に、圧接端子部３３と同じ向きに設けられ、その上部が刃形状に形成されている。 The clamp blade 34 is formed in the same shape as the press contact terminal portion 33. The clamp blade 34 has a U-shaped insertion hole 36, and an inner peripheral surface forming the insertion hole 36 is formed in a blade shape. The width of the insertion hole 36 is set wider than the diameter of the conductor 41. Thereby, the insertion hole 36 bites into only the covering portion 42 of the first flat cable 4 described later, and does not bite into the conductor 41 itself. The clamp blade 34 is disposed behind the press contact terminal portion 33 and is provided in the same direction as the press contact terminal portion 33, and an upper portion thereof is formed in a blade shape.
　第１ホルダ５は、フラットケーブル挿入室５１を有する。ケーブル挿入室５１に第１フラットケーブル４の先端部が挿入され、保持される。 The first holder 5 has a flat cable insertion chamber 51. The distal end portion of the first flat cable 4 is inserted into the cable insertion chamber 51 and held.
　アッパハウジング６には、ロアハウジング２と同様に、複数の端子収容室６ａが設けられている。複数の端子収容室６ａは、等間隔に並列して配置されている。 As with the lower housing 2, the upper housing 6 is provided with a plurality of terminal accommodating chambers 6a. The plurality of terminal accommodating chambers 6a are arranged in parallel at equal intervals.
　複数の第２端子７は、アッパハウジング６の各端子収容室６ａに収容されている。第２端子７は、相手端子（図示せず）が挿入される端子接続部（図示せず）と、この端子接続部の後方に連結されたケーブル接続部７２とを有し、後述する１箇所のクランプ刃７４を除いて第１端子３と同様に構成されている。ケーブル接続部７２は、長手方向に間隔を置いて立設された２箇所の圧接端子部７３と１箇所のクランプ刃７４とを有する。各圧接端子部７３は、Ｕ字状の導体挿入孔７５を有し、導体挿入孔７５を形成する内周面が刃形状に形成されている。クランプ刃７４は、圧接端子部７３の後方に配置され、圧接端子部７３と異なる形状を有する。また、クランプ刃７４は、圧接端子部７３とは直交する向き、後述する第２フラットケーブル８の導体８１の長手方向に沿う向きに設けられ、その上端が鋭い刃形状に形成されている。 The plurality of second terminals 7 are accommodated in the terminal accommodating chambers 6 a of the upper housing 6. The second terminal 7 has a terminal connection part (not shown) into which a mating terminal (not shown) is inserted, and a cable connection part 72 connected to the rear of the terminal connection part, which is described later The clamp blade 74 is configured in the same manner as the first terminal 3. The cable connection portion 72 has two press contact terminal portions 73 and one clamp blade 74 which are erected at intervals in the longitudinal direction. Each press-contact terminal portion 73 has a U-shaped conductor insertion hole 75, and an inner peripheral surface forming the conductor insertion hole 75 is formed in a blade shape. The clamp blade 74 is disposed behind the press contact terminal portion 73 and has a shape different from that of the press contact terminal portion 73. The clamp blade 74 is provided in a direction orthogonal to the press contact terminal portion 73 and in a direction along the longitudinal direction of the conductor 81 of the second flat cable 8 described later, and its upper end is formed in a sharp blade shape.
　第２ホルダ９は、フラットケーブル挿入室９１を有する。ケーブル挿入室９１に第２フラットケーブル８の先端部が挿入され、保持される。 The second holder 9 has a flat cable insertion chamber 91. The distal end portion of the second flat cable 8 is inserted into the cable insertion chamber 91 and held.
　第１フラットケーブル４は、平行に並設され、間隔を置いて配置された複数の導体４１と、これらの導体４１を被覆する絶縁性の被覆部４２とから扁平状に形成されている。被覆部４２の長手方向の端部には、切り込みにより形成され、隣り合う導体４１間の被覆部４２上に折り返されて載置される舌片被覆部４３が設けられている。 The first flat cable 4 is formed in a flat shape from a plurality of conductors 41 arranged in parallel and spaced from each other, and an insulating covering portion 42 that covers these conductors 41. At the end in the longitudinal direction of the covering portion 42, a tongue piece covering portion 43 that is formed by cutting and is folded and placed on the covering portion 42 between the adjacent conductors 41 is provided.
　被覆部４２の長手方向の端部に舌片被覆部４３を設けるため、図７Ａ、７Ｂ及び図８Ａ～８Ｄに示す下金型１１及び上金型１２を用いて、被覆部４２の長手方向の端部にスリット加工を施すことにより、図１０Ａ～１０Ｂに示すスリット４４が形成される。下金型１１には、図７Ａ、７Ｂに示すように、被覆部４２の長手方向の端部近傍に切り込みを設ける短刃１３と、短刃１３の両端からそれぞれ被覆部４２の長手方向と直交する方向へ延び、被覆部４２の両側に切り込みを設ける２本の長刃１４とからなる切断刃１５が設けられている。上金型１２には、切断刃１５の先端を受ける刃台部１６が設けられている。なお、被覆部４２の切り込み（スリット４４）は、圧接端子部３３が導体４１に圧接する領域を含む範囲に形成される。 In order to provide the tongue piece covering portion 43 at the end portion in the longitudinal direction of the covering portion 42, the lower die 11 and the upper die 12 shown in FIGS. 7A and 7B and FIGS. 8A to 8D are used. By slitting the end portion, the slit 44 shown in FIGS. 10A to 10B is formed. As shown in FIGS. 7A and 7B, the lower die 11 has a short blade 13 provided with a cut in the vicinity of the end portion in the longitudinal direction of the covering portion 42, and the longitudinal direction of the covering portion 42 from both ends of the short blade 13 A cutting blade 15 comprising two long blades 14 extending in the direction to be cut and provided with cuts on both sides of the covering portion 42 is provided. The upper mold 12 is provided with a blade base 16 that receives the tip of the cutting blade 15. The notch (slit 44) of the covering portion 42 is formed in a range including a region where the pressure contact terminal portion 33 is in pressure contact with the conductor 41.
　同様に、第２フラットケーブル８も、平行に並設され、間隔を置いて配置された複数の導体８１と、これらの導体８１を被覆する絶縁性の被覆部８２とから扁平状に形成されている。被覆部８２の長手方向の端部には、切り込みによりスリット８４が形成され、隣り合う導体８１間の被覆部８２上に折り返されて載置される舌片被覆部８３が設けられている。なお、被覆部８２の切り込み（スリット８４）も、圧接端子部３３が導体８１に圧接する領域を含む範囲に形成される。 Similarly, the second flat cable 8 is also formed in a flat shape from a plurality of conductors 81 arranged in parallel and spaced from each other, and an insulating covering portion 82 that covers these conductors 81. Yes. At the end in the longitudinal direction of the covering portion 82, a slit 84 is formed by cutting, and a tongue piece covering portion 83 that is folded and placed on the covering portion 82 between adjacent conductors 81 is provided. Note that the notch (slit 84) of the covering portion 82 is also formed in a range including a region where the pressure contact terminal portion 33 is pressed against the conductor 81.
　第１及び第２フラットケーブル４，８の加工作業を説明する。まず、被覆部４２のスリット加工として図８Ｂに示すように、下金型１１上に第１フラットケーブル４を載置し、図８Ｃに示すように、上方より上金型１２で押圧した後、図８Ｄに示すように、下金型１１及び上金型１２による押圧状態を解除する。その結果、第１フラットケーブル４の被覆部４２に切断刃１５が貫通し（図９参照）、第１フラットケーブル４の被覆部４２に図１０Ａに示すように、スリット４４が形成される。 The processing work of the first and second flat cables 4 and 8 will be described. First, as shown in FIG. 8B, as the slit processing of the covering portion 42, the first flat cable 4 is placed on the lower mold 11 and, as shown in FIG. 8C, the upper mold 12 is pressed from above, As shown in FIG. 8D, the pressed state by the lower mold 11 and the upper mold 12 is released. As a result, the cutting blade 15 penetrates the covering portion 42 of the first flat cable 4 (see FIG. 9), and a slit 44 is formed in the covering portion 42 of the first flat cable 4 as shown in FIG. 10A.
　スリット４４は、被覆部４２の長手方向の端部近傍に形成され、被覆部４２の長手方向と直交する方向へ延びる１本の短いスリット溝４５と、スリット溝４５の両端よりそれぞれ被覆部４２の長手方向に沿って所定距離延びる２本の長いスリット溝４６とからなる。これによって、被覆部４２には、スリット溝４５、４６で囲まれる長方形の舌片被覆部４３が形成される。２本のスリット溝４６の後端部には打ち抜きがないため、長方形の舌片被覆部４３の一辺は被覆部４２と連続している。すなわち、各スリット溝４６の後端間を連結するスリット溝は設けられていない。 The slit 44 is formed in the vicinity of the end in the longitudinal direction of the covering portion 42, and has one short slit groove 45 extending in a direction orthogonal to the longitudinal direction of the covering portion 42, and both ends of the slit groove 45. It consists of two long slit grooves 46 extending a predetermined distance along the longitudinal direction. As a result, a rectangular tongue piece covering portion 43 surrounded by the slit grooves 45 and 46 is formed in the covering portion 42. Since the rear end portions of the two slit grooves 46 are not punched, one side of the rectangular tongue piece covering portion 43 is continuous with the covering portion 42. That is, no slit groove that connects the rear ends of the slit grooves 46 is provided.
　次いで、長方形の舌片被覆部４３の後端を折曲位置として、図１０Ｂに示すように、舌片被覆部４３を起立させた後、図１０Ｃに示すように、舌片被覆部４３を後方に折り返して、隣り合う導体４１間の被覆部４２上に折り重ねる。このとき、被覆部４２と舌片被覆部４３間に図示しない接着材を塗ることにより接着してもよい。 Next, with the rear end of the rectangular tongue covering portion 43 as the bent position, the tongue covering portion 43 is erected as shown in FIG. 10B, and then the tongue covering portion 43 is moved backward as shown in FIG. 10C. And folded on the covering portion 42 between the adjacent conductors 41. At this time, adhesion may be performed by applying an adhesive (not shown) between the covering portion 42 and the tongue piece covering portion 43.
　上記と同様の手順により、第２フラットケーブル８の加工を行う。 The second flat cable 8 is processed in the same procedure as above.
　次に、コネクタ１の組み立て作業を説明する。まず、図１１に示すように、第１ホルダ５に第１フラットケーブル４を取り付ける。次いで、図１２に示すように、第１ホルダ５をロアハウジング２上に装着することにより、図１３に示すように、第１ホルダ５で保持される第１フラットケーブル４を備えたロアハウジング２を得る。このとき、第１ホルダ５により、第１フラットケーブル４が複数の第１端子３に対して圧接されるので、積層した被覆部４２及び舌片被覆部４３が互いに密着されると共に、圧接端子部３３は被覆部４２を貫通して、その導体挿入孔３５の内周部分が導体４１に食い込むことにより電気的に接触する。同時に、クランプ刃３４は、積層した被覆部４２及び舌片被覆部４３を貫通する。ここで、クランプ刃３４の挿入孔３６の内周部分は導体４１の周囲の被覆部４２に食い込むが、導体４１自体には食い込まない。 Next, the assembly work of the connector 1 will be described. First, as shown in FIG. 11, the first flat cable 4 is attached to the first holder 5. Next, as shown in FIG. 12, the lower housing 2 including the first flat cable 4 held by the first holder 5 as shown in FIG. 13 by mounting the first holder 5 on the lower housing 2. Get. At this time, since the first flat cable 4 is pressed against the plurality of first terminals 3 by the first holder 5, the laminated covering portion 42 and tongue covering portion 43 are brought into close contact with each other, and the pressing contact portion 33 penetrates the covering portion 42, and the inner peripheral portion of the conductor insertion hole 35 bites into the conductor 41 to make electrical contact. At the same time, the clamp blade 34 penetrates the laminated covering portion 42 and tongue piece covering portion 43. Here, the inner peripheral portion of the insertion hole 36 of the clamp blade 34 bites into the covering portion 42 around the conductor 41, but does not bite into the conductor 41 itself.
　次いで、図１４に示すように、ロアハウジング２上にアッパハウジング６を装着して、図１５に示すように、一体化したロアハウジング２及びアッパハウジング６を得る。その後、図１６に示すように、アッパハウジング６上に第２フラットケーブル８付きの第２ホルダ９を装着する。このとき、図５Ａ、５Ｂに示すように、第２ホルダ９により、第２フラットケーブル８が複数の第２端子７に対して圧接されるので、積層した被覆部８２及び舌片被覆部８３が互いに密着される。同時に、圧接端子部７３は被覆部８２を貫通し、その導体挿入孔７５の内周部分が導体８１に食い込むことにより電気的に接触する。同時に、クランプ刃７４は、導体８１間のブリッジ箇所の被覆部８２に突き刺さるが、導体８１自体には食い込まない。このように組立を行うことにより図２Ａ、２Ｂ及び図３に示すコネクタ１を得る。 Next, as shown in FIG. 14, the upper housing 6 is mounted on the lower housing 2 to obtain an integrated lower housing 2 and upper housing 6 as shown in FIG. Thereafter, as shown in FIG. 16, the second holder 9 with the second flat cable 8 is mounted on the upper housing 6. At this time, as shown in FIGS. 5A and 5B, the second flat cable 8 is pressed against the plurality of second terminals 7 by the second holder 9, so that the laminated covering portion 82 and tongue piece covering portion 83 are formed. Adhere to each other. At the same time, the press-contact terminal portion 73 penetrates the covering portion 82, and the inner peripheral portion of the conductor insertion hole 75 bites into the conductor 81 to make electrical contact. At the same time, the clamp blade 74 pierces the covering portion 82 at the bridge portion between the conductors 81 but does not bite into the conductor 81 itself. By assembling in this way, the connector 1 shown in FIGS. 2A, 2B and 3 is obtained.
　上記組立過程にあって、圧接端子部３３，７３に第１及び第２フラットケーブル４，８が圧接される際に、各導体４１，８１がスリット４４，８４によって幅方向に独立して変移できる。このため、第１及び第２端子３，７の圧接端子部３３，７３間のピッチと第１及び第２フラットケーブル４，８の導体４１，８１間のピッチとが異なる場合にもピッチ吸収でき、適正な電気的接続状態を得ることができる。 In the above assembly process, when the first and second flat cables 4 and 8 are pressed against the press contact terminals 33 and 73, the conductors 41 and 81 can be independently shifted in the width direction by the slits 44 and 84. . Therefore, even when the pitch between the pressure contact terminal portions 33 and 73 of the first and second terminals 3 and 7 and the pitch between the conductors 41 and 81 of the first and second flat cables 4 and 8 are different, the pitch can be absorbed. A proper electrical connection state can be obtained.
　以上説明したように、２層に積層した被覆部８２及び舌片被覆部８３を第２端子７のクランプ刃７４で突き刺して第２フラットケーブル８をクランプした。このため、クランプ刃７４による被覆部８２、８３の切れ目におけるせん断力の向上を図ることができると共に、クランプ刃７４を突き刺すという簡単な固定作業で良い。従って、第２フラットケーブル８の引き抜き方向に働く力に抗して第２フラットケーブル８をより確実に保持することができる。同様に、２層に積層した被覆部４２及び舌片被覆部４３を第１端子３のクランプ刃３４で突き刺して第１フラットケーブル４をクランプしたので、クランプ刃３４の切れ目における被覆部４２、４７のせん断力の向上を図ることができる。従って、第１フラットケーブル４の引き抜き方向に働く力に抗して第１フラットケーブル４を簡単な固定作業で確実に保持することができる。 As described above, the covering portion 82 and the tongue piece covering portion 83 laminated in two layers were pierced by the clamp blade 74 of the second terminal 7 to clamp the second flat cable 8. For this reason, it is possible to improve the shearing force at the cuts of the covering portions 82 and 83 by the clamp blade 74, and a simple fixing operation of piercing the clamp blade 74 is sufficient. Accordingly, the second flat cable 8 can be more reliably held against the force acting in the pulling direction of the second flat cable 8. Similarly, since the covering portion 42 and the tongue piece covering portion 43 laminated in two layers are pierced by the clamp blade 34 of the first terminal 3 and the first flat cable 4 is clamped, the covering portions 42, 47 at the cuts of the clamp blade 34. It is possible to improve the shearing force. Therefore, the first flat cable 4 can be reliably held by a simple fixing operation against the force acting in the pulling direction of the first flat cable 4.
　被覆部４２の切り込みは、第１端子３の圧接端子部３３が導体４１に圧接する領域を含む範囲に形成される。このため、圧接端子部３３間のピッチと導体４１間のピッチとのずれを吸収し、圧接端子部３３に導体４１を確実に圧接して適正な電気的接続ができる。同様に、被覆部８２の切り込みは、第２端子７の圧接端子部７３が導体８１に圧接する領域を含む範囲に形成される。このため、第２端子７の圧接端子部７３間のピッチと導体８１間のピッチとのずれを吸収し、圧接端子部７３に導体８１を確実に圧接して適正な電気的接続ができる。 The notch of the covering portion 42 is formed in a range including a region where the pressure contact terminal portion 33 of the first terminal 3 is in pressure contact with the conductor 41. For this reason, the shift between the pitch between the press contact terminal portions 33 and the pitch between the conductors 41 is absorbed, and the conductor 41 can be reliably pressed into contact with the press contact terminal portion 33 so that proper electrical connection can be achieved. Similarly, the notch of the covering portion 82 is formed in a range including a region where the pressure contact terminal portion 73 of the second terminal 7 is in pressure contact with the conductor 81. For this reason, the shift | offset | difference of the pitch between the press contact terminal parts 73 of the 2nd terminal 7 and the pitch between the conductors 81 is absorbed, and the conductor 81 can be reliably press-contacted to the press contact terminal part 73, and an appropriate electrical connection can be performed.
　第１及び第２フラットケーブル４、８をロアハウジング２及びアッパハウジング６に装着する際に、第１及び第２ホルダ５、９で第１及び第２フラットケーブル４、８を端子３、７に圧接させる。このため、第１及び第２フラットケーブル４、８を第１及び第２端子３、７に確実に取付けることができる。 When the first and second flat cables 4 and 8 are attached to the lower housing 2 and the upper housing 6, the first and second flat cables 4 and 8 are connected to the terminals 3 and 7 by the first and second holders 5 and 9. Press contact. For this reason, the first and second flat cables 4 and 8 can be securely attached to the first and second terminals 3 and 7.
　第１及び第２端子３，７の各クランプ刃３４，７４は、２層に積層した被覆部４２，８２及び舌片被覆部４３，８３を突き刺すようにしたが、クランプ刃３４，７４を刺す箇所は３層以上に積層した被覆部としても良い。 The clamp blades 34 and 74 of the first and second terminals 3 and 7 pierce the covering portions 42 and 82 and the tongue piece covering portions 43 and 83 laminated in two layers. The location may be a covering portion laminated in three or more layers.
　第１端子３のクランプ刃３４は、圧接端子部３３と同じ方向（第１フラットケーブル４の幅方向）に立設されているが、第２端子７のクランプ刃７４は、圧接端子部７３に直交する方向（第２フラットケーブル８の長手方向）に立設されている。第１端子３のクランプ刃３４は、クランプ刃３４の前面全体で第１フラットケーブル４の引き抜き力を受けるため、保持力が高い。第２端子７のクランプ刃７４は、構造がシンプルであるため、低コスト化、寸法安定化を図ることができる。 The clamp blade 34 of the first terminal 3 is erected in the same direction as the press contact terminal portion 33 (width direction of the first flat cable 4), but the clamp blade 74 of the second terminal 7 is connected to the press contact terminal portion 73. It is erected in the orthogonal direction (longitudinal direction of the second flat cable 8). Since the clamp blade 34 of the first terminal 3 receives the pulling force of the first flat cable 4 over the entire front surface of the clamp blade 34, the holding force is high. Since the clamp blade 74 of the second terminal 7 has a simple structure, cost reduction and dimensional stability can be achieved.
　本実施形態では、フラットケーブルの接続構造がコネクタ１に適用されているが、これに限定されるものではない。例えば、フラットケーブルを車載搭載機器（車室照明機器等）に接続する接続構造に適用しても良い。

　このように、本発明は、ここでは記載していない様々な実施の形態などを含むことは勿論である。したがって、本発明の技術的範囲は、上述の説明から妥当な請求の範囲に係る発明特定事項によってのみ定められる。 In the present embodiment, the connection structure of the flat cable is applied to the connector 1, but is not limited to this. For example, the present invention may be applied to a connection structure that connects a flat cable to a vehicle-mounted device (such as a vehicle interior lighting device).

As described above, the present invention naturally includes various embodiments that are not described herein. Therefore, the technical scope of the present invention is determined only by the invention specifying matters according to the scope of claims reasonable from the above description.
　特願２０１３－１２５５１１号（出願日：２０１３年６月１４日）の全内容は、ここに援用される。
  The entire contents of Japanese Patent Application No. 2013-125511 (filing date: June 14, 2013) are incorporated herein by reference.

Claims (4)

  1. 　間隔を置いて配置された複数の導体と前記複数の導体を被覆する被覆部とを有するフラットケーブルと、
    　前記フラットケーブルが挿入されるハウジングと、
    　前記ハウジングに固定され、前記ハウジングに挿入された前記フラットケーブルに突き刺さる圧接端子部と、
    　前記ハウジングに固定され、前記ハウジングに挿入された前記フラットケーブルに突き刺さるクランプ刃と、
    を備え、
    　　前記フラットケーブルに突き刺さった前記圧接端子部は、前記複数の導体の対応する導体に圧接し、
    　　前記フラットケーブルは、隣り合う前記複数の導体間の前記被覆部の箇所に切り込みによって形成された舌片被覆部を前記複数の導体間の前記被覆部上に折り返して載置することで形成した複数層の被覆部を有し、
    　　前記フラットケーブルに突き刺さった前記クランプ刃は、前記複数層の被覆部に突き刺さって前記フラットケーブルをクランプする
    フラットケーブルの接続構造。     A flat cable having a plurality of conductors arranged at intervals and a covering portion covering the plurality of conductors;
    A housing into which the flat cable is inserted;
    A pressure contact terminal portion fixed to the housing and pierced into the flat cable inserted into the housing;
    A clamp blade fixed to the housing and piercing the flat cable inserted into the housing;
    With
    The pressure contact terminal portion pierced into the flat cable is pressed against a corresponding conductor of the plurality of conductors,
    The flat cable is formed by folding and placing a tongue covering portion formed by cutting at a location of the covering portion between the plurality of adjacent conductors on the covering portion between the plurality of conductors. Having a layer covering,
    The flat cable connection structure in which the clamp blade pierced into the flat cable is pierced into the covering portion of the plurality of layers to clamp the flat cable.
  2. 　前記被覆部の箇所の切り込みは、前記圧接端子部が前記複数の導体の対応する導体に圧接する領域を含む範囲に位置する
    請求項１記載のフラットケーブルの接続構造。     The flat cable connection structure according to claim 1, wherein the notch at the location of the covering portion is located in a range including a region where the pressure contact terminal portion is in pressure contact with a corresponding conductor of the plurality of conductors.
  3. 　前記フラットケーブルを保持し、前記フラットケーブルを前記ハウジングに固定するホルダをさらに備えた
    請求項１記載のフラットケーブルの接続構造。     The flat cable connection structure according to claim 1, further comprising a holder that holds the flat cable and fixes the flat cable to the housing.
  4. 　前記フラットケーブルを保持し、前記フラットケーブルを前記ハウジングに固定するホルダをさらに備えた
    請求項２記載のフラットケーブルの接続構造。
          The flat cable connection structure according to claim 2, further comprising a holder that holds the flat cable and fixes the flat cable to the housing.
PCT/JP2014/065623 2013-06-14 2014-06-12 Flat-cable connection structure WO2014200069A1 (en)

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JPH0216587U (en) * 1988-07-18 1990-02-02
JP2001230008A (en) * 2000-02-16 2001-08-24 Auto Network Gijutsu Kenkyusho:Kk Tape wire with terminal and wire harness
JP2003217721A (en) * 2002-01-25 2003-07-31 Furukawa Electric Co Ltd:The Flat cable connecting terminal and connecting method of flat cable and connecting terminal
JP2008186706A (en) * 2007-01-30 2008-08-14 Fujikura Ltd Connector for flat harness

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0216587U (en) * 1988-07-18 1990-02-02
JP2001230008A (en) * 2000-02-16 2001-08-24 Auto Network Gijutsu Kenkyusho:Kk Tape wire with terminal and wire harness
JP2003217721A (en) * 2002-01-25 2003-07-31 Furukawa Electric Co Ltd:The Flat cable connecting terminal and connecting method of flat cable and connecting terminal
JP2008186706A (en) * 2007-01-30 2008-08-14 Fujikura Ltd Connector for flat harness

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