JP4520921B2 - Method for manufacturing terminal fitting and terminal fitting - Google Patents

Description

  The present invention relates to a method of manufacturing a terminal fitting used for a wire harness, and the terminal fitting.

  A wide variety of electronic devices are mounted on a vehicle as a moving body. In the automobile, a wire harness is routed to transmit electric power, a control signal, and the like to the electronic device. The wire harness includes a plurality of electric wires and a plurality of connectors. The electric wire is a so-called covered electric wire including a conductive core wire and an insulating covering portion that covers the core wire.

  The connector includes a pair of insulating connector housings that are fitted together, and conductive terminal fittings that are accommodated in these housings. The terminal fitting includes an electric wire connecting portion that is attached to one end of the electric wire and is electrically connected to the core wire, and an electric contact portion that contacts the other terminal fitting. The wire harness transmits a control signal and the like to the electronic device by connector-connecting the connector housings.

  In the manufacturing process of wire harnesses, terminal fittings with different shapes of wire connection portions are used depending on the connection processing method and the type of wire, and as these terminal fittings, for example, the covering portion of the wire is peeled off. One having a crimp connection part for caulking the exposed core wire (hereinafter referred to as a crimp terminal and shown in Patent Document 1), one having a pressure connection part that cuts the sheath of the electric wire and makes contact with the core wire (hereinafter referred to as a pressure contact terminal) And a piercing connection portion that penetrates a flat wire and contacts the core wire (hereinafter referred to as a piercing terminal and shown in Patent Literature 3).

  In addition, the connection using a crimp terminal is suitable for the connection of a power supply line etc. in which high connection reliability is required, and the connection using a pressure contact terminal is suitable for automation of the manufacturing process. Moreover, the connection using a piercing terminal has the advantage that it is suitable for the connection of a flat-type electric wire and the wiring space can be reduced.

Further, each of these terminal fittings has a male electrical contact portion (hereinafter referred to as a male contact portion and shown in Patent Document 4) and a female electrical contact portion (hereinafter referred to as a female contact portion). There are some which are shown in patent document 5. The male contact part of one terminal fitting is accommodated in the female contact part of the other terminal fitting, and both are electrically connected. In order to maintain compatibility in fitting, the male contact portion and the female contact portion are formed in the same shape even between the terminal fittings having different types of wire connecting portions.
JP 2004-193073 A JP 2003-217698 A JP 2002-194142 A JP-A-8-162191 JP 2002-63961 A

  The conventional terminal fitting described above is formed by bending a single sheet metal obtained by punching a conductive metal plate with a die provided for each part number of the terminal fitting. Was integrally molded. That is, since parts having the same shape are manufactured by different molds, there is a problem in that variations in performance occur due to tolerances generated for each part, and the molds of the parts having the same shape are wasted.

  Accordingly, an object of the present invention is to provide a terminal fitting that is inexpensive, has no variation, and has stable performance, and a method of manufacturing the terminal fitting.

In order to achieve the above-described object, the manufacturing method of the terminal fitting according to claim 1 is to connect the electric wire connecting portion to which the electric wire is connected and the mating terminal fitting, and to caulk the electric wire. An electric contact portion having a crimping piece capable of forming a plurality of types of the electric wire connection portions having different shapes, and a plurality of types of the electric contact portions having different shapes. Manufactured separately, and the electric contact portion has a pair of front caulking pieces and a pair of rear caulking pieces that can be connected to the electric wires as the caulking pieces standing from both ends in the width direction of the bottom wall. The electric wire connecting portion has a pair of front side connecting pieces that are erected from both ends in the width direction of the rear side connecting piece and the bottom wall and are lower in height than the pair of front side caulking pieces , depending on the use. From the wire connection portion and the electrical contact portion, It is selected one by one, a pair of front connecting piece of the wire connecting portion of a selected one, at the pair of front caulking piece of the electrical contact portion of a selected one, covering the pair of front connecting piece And caulking the rear connection piece of the selected one electric wire connection portion with the pair of rear caulking pieces of the selected electric contact portion so as to cover the rear connection piece. The terminal fitting is manufactured by crimping.

  The manufacturing method of the terminal metal fitting according to claim 2 is the method of manufacturing the terminal metal fitting according to claim 1, wherein the electric wire connecting portion presses the electric wire and a piercing connecting portion that breaks through the electric wire and caulks the electric wire. It is characterized in that a press-contact connection portion is provided.

The terminal fitting according to claim 3 is an electric contact portion having a caulking piece capable of caulking the electric wire, and an electric wire connecting portion to which the electric wire is connected, and the other terminal fitting. A plurality of types of the electric wire connection portions having different shapes and a plurality of types of the electric contact portions having different shapes from each other, and the electric contact portions are caulked. As a piece, it has a pair of front-side caulking pieces and a pair of rear-side caulking pieces that are erected from both ends in the width direction of the bottom wall, and can connect the electric wires, and the electric wire connecting portion includes the rear side connecting piece and the bottom wall. The pair of front sides of the one wire connecting portion that is erected from both ends in the width direction of the wire and has a pair of front connection pieces that are lower in height than the pair of front caulking pieces The connecting piece is one electrical contact selected according to the application. The electrical connecting portion is caulked so as to be covered with the pair of front caulking pieces, and the rear connecting piece of the electric wire connecting portion selected according to the application is selected according to the application. It is manufactured by being caulked so as to be covered with the pair of rear caulking pieces .

The terminal fitting according to claim 4 is the terminal fitting according to claim 3 , wherein, as the wire connecting portion, a piercing connecting portion that breaks through the electric wire and caulks the electric wire, and a pressure contact connecting portion that presses the electric wire are provided. It is characterized by that.

  According to the manufacturing method of the terminal fitting according to claim 1, since it is possible to share the parts between the terminal fittings of different product numbers, it becomes possible to minimize the tolerance generated for each part, The cost of each component of the terminal fitting can be reduced due to the mass production effect. Therefore, it is possible to manufacture a terminal fitting that is inexpensive, has no variation, and has stable performance. In addition, since the single electrical contact portion can be used as a crimp terminal, the part number can be reduced. Furthermore, only the electric wire connection portion can be operated before the electric contact portion and the electric wire connection portion are assembled, and damage and deformation of the electric contact portion in the wire harness manufacturing process can be prevented.

  According to the method of manufacturing the terminal fitting according to claim 2, the piercing terminal can be manufactured by connecting the electrical contact portion and the piercing connection portion, and the pressure contact is achieved by connecting the electrical contact portion and the pressure contact connection portion. Terminals can be manufactured. Such piercing terminals and press contact terminals can share parts between terminal fittings of different product numbers, so that it is possible to minimize the tolerances that occur for each part, and due to mass production effects The cost of each component of the terminal fitting can be reduced. Therefore, it is possible to manufacture a terminal fitting that is inexpensive, has no variation, and has stable performance. In addition, since the single electrical contact portion can be used as a crimp terminal, the part number can be reduced. Furthermore, only the electric wire connection portion can be operated before the electric contact portion and the electric wire connection portion are assembled, and damage and deformation of the electric contact portion in the wire harness manufacturing process can be prevented.

According to the terminal fitting of claim 3 , since it is possible to share parts between the terminal fittings of different product numbers, it is possible to minimize the tolerance generated for each part, and also due to the mass production effect The cost of each component of the terminal fitting can be reduced. Therefore, it is possible to manufacture a terminal fitting that is inexpensive, has no variation, and has stable performance. In addition, since the single electrical contact portion can be used as a crimp terminal, the part number can be reduced. Furthermore, only the electric wire connection portion can be operated before the electric contact portion and the electric wire connection portion are assembled, and damage and deformation of the electric contact portion in the wire harness manufacturing process can be prevented.

According to the terminal fitting of claim 4 , the piercing terminal can be manufactured by connecting the electrical contact portion and the piercing connection portion, and the press contact terminal is manufactured by connecting the electrical contact portion and the press contact connection portion. can do. Such piercing terminals and press contact terminals can share parts between terminal fittings of different product numbers, so that it is possible to minimize the tolerances that occur for each part, and due to mass production effects The cost of each component of the terminal fitting can be reduced. Therefore, it is possible to manufacture a terminal fitting that is inexpensive, has no variation, and has stable performance. In addition, since the single electrical contact portion can be used as a crimp terminal, the part number can be reduced. Furthermore, only the electric wire connection portion can be operated before the electric contact portion and the electric wire connection portion are assembled, and damage and deformation of the electric contact portion in the wire harness manufacturing process can be prevented.

  Hereinafter, a terminal metal fitting and a method of manufacturing the terminal metal fitting according to an embodiment of the present invention will be described with reference to FIGS. The manufacturing method of the terminal fitting of the present embodiment includes a piercing terminal 1A (shown in FIG. 1) having a male electrical contact portion (hereinafter referred to as a male contact portion) 10, and a pressure contact having the male contact portion 10. A piercing terminal 2A (shown in FIG. 3) having a terminal 1B (shown in FIG. 2) and a female electrical contact portion (hereinafter referred to as a female contact portion) 20, and a press contact terminal 2B having a female contact portion 20 (Shown in FIG. 4).

  The terminal fittings 1A, 1B, 2A, 2B are accommodated in a connector housing (not shown) made of an insulating synthetic resin, and the terminal fittings accommodated in the mating connector housing and an electric wire (not shown) are electrically connected to each other. Used to connect to. In addition, the electric wire used in the present specification is a so-called covered electric wire having a round cross-sectional shape in which a core wire made of a conductive metal is covered with an insulating synthetic resin, or a well-known flexible flat cable (Flexible Flat Cable: A flat type covered electric wire such as FFC) is shown.

  As shown in FIG. 1A, the piercing terminal 1A includes a male contact portion 10 and a piercing connection portion 30 as a wire connection portion to which an electric wire is electrically connected.

  The male contact portion 10 is made of a conductive metal or the like, and is manufactured separately from the piercing connection portion 30 as shown in FIGS. 1 (a) and 1 (b). An inserter 11 to be inserted into the mold contact part, a main body part 12 and a connecting part 13 are provided.

  The main body 12 is provided with a bottom wall 14, side walls 15, 15 erected from both ends in the width direction of the bottom wall 14, and connected to the side walls 15, 15 and spaced from the bottom wall 14. It is formed in a hollow prism shape having four walls with the ceiling wall 16. As for the main-body part 12, the one end part of the longitudinal direction is continued with the inserter 11, and the bottom wall 14 of the other end part is continued with the connection part 13. FIG.

  The inserter 11 is connected to the main body 12 and is formed in an elongated prismatic shape. The inserter 11 is formed thinner than the main body 12. The inserter 11 is inserted into the female contact portion of the mating terminal fitting, and is electrically connected to the mating terminal fitting.

  The connecting portion 13 is connected to the bottom wall 14 at the other end of the main body 12, and has a pair of front caulking pieces 17 erected from both ends in the width direction of the bottom wall 14, and both ends in the width direction of the bottom wall 14. And a pair of rear caulking pieces 18 provided on the side farther from the main body part 12 than the front caulking pieces 17. The connecting portion 13 is connected (connected) to a connecting portion 33 of a piercing connecting portion 30 described later.

  The male contact portion 10 having the above-described configuration can be used alone for connection to an electric wire. In that case, after placing an electric wire having a round cross-section in which the end portion is peeled on the bottom wall 14 and the core wire is exposed, a pair of front sides in a direction of pressing the core wire portion of the electric wire toward the bottom wall 14 The caulking piece 17 is bent, that is, the core portion of the electric wire is caulked with a pair of front caulking pieces 17 to be electrically connected to the electric wire. Similarly, the pair of rear caulking pieces 18 are bent in a direction in which the covering portion of the electric wire is pressed toward the bottom wall 14, that is, the electric wire covering portion is caulked with the pair of rear caulking pieces 18 to be fixed to the electric wire. The

  The piercing connection portion 30 is made of a conductive metal or the like, and is erected from the bottom wall 31 and both ends of the bottom wall 31 in the width direction as shown in FIGS. 1 (a) and 1 (b). The plurality of piercing pieces 32 and the connecting portion 33 are provided. The plurality of piercing pieces 32 are arranged along the longitudinal direction of the piercing connection portion 30, and the plurality of piercing pieces 32 facing each other are arranged in a staggered manner. The plurality of piercing pieces 32 penetrates (breaks through) a conductor of a flat electric wire such as FFC and comes into contact with the conductor, and the tip portions of the plurality of piercing pieces 32 that are penetrated are bent inward from each other, Caulking a flat wire. By doing so, the piercing connection 30 and the flat electric wire are electrically and mechanically connected.

  The connecting portion 33 is connected to the bottom wall 31 and is erected from both ends in the width direction of the bottom wall 31, and the rear side connecting pieces 35 are erected from both ends in the width direction of the bottom wall 31. And a pair of front connection pieces 34 provided on the side farther from the piercing piece 32 than the connection piece 35. That is, in the piercing connection portion 30, the piercing piece 32, the rear side connection piece 35, and the front side connection piece 34 are sequentially arranged in a line along the longitudinal direction of the piercing connection portion 30. The pair of rear connection pieces 35 are formed in a cylindrical shape with their tips bent inward from each other, and the pair of front connection pieces 34 are opposed to each other with a space therebetween. Such a connecting portion 33 is connected (connected) to the connecting portion 13 of the male contact portion 10 described above.

  As shown in FIG. 1B, the piercing terminal 1 </ b> A has a connecting portion 33 of the piercing connecting portion 30 superimposed on the bottom wall 14 of the connecting portion 13 of the male contact portion 10, and a pair of front caulking pieces 17. A pair of front connection pieces 34 are positioned between them, and a pair of rear connection pieces 35 are positioned between the pair of rear caulking pieces 18. Further, the pair of front coupling pieces 34 are caulked to the pair of front caulking pieces 17 so that the front coupling piece 34 and the front caulking pieces 17 are electrically connected, and the pair of rear coupling pieces 35 are caulked. By being caulked to the piece 18, the rear connecting piece 35 and the rear caulking piece 18 are mechanically connected. The piercing terminal 1A thus connected includes the inserter 11, the main body 12, the front caulking piece 17 and the front connecting piece 34, the rear caulking piece 18 and the rear connecting piece 35, and the piercing piece 32. Are arranged in a line in order.

  As shown in FIG. 2A, the press contact terminal 1B includes a male contact portion 10 and a press contact connection portion 40 as a wire connection portion to which an electric wire is electrically connected. The male contact portion 10 is the same as the male contact portion 10 of the piercing terminal 1A described above. In addition, the same code | symbol is attached | subjected to the same component as the piercing terminal 1A shown in FIG. 1, and description is abbreviate | omitted. In the press contact terminal 1B, the connecting portion 13 of the male contact portion 10 is connected to a connecting portion 44 of a press contact connecting portion 40 described later.

  The press-connecting portion 40 is made of a conductive metal or the like, and is erected from the bottom wall 41 and both ends of the bottom wall 41 in the width direction, as shown in FIGS. 2 (a) and 2 (b). A pair of crimping pieces 43, a pair of caulking pieces 43 provided side by side with the pressure welding pieces 42 along the longitudinal direction of the pressure welding connection portion 40, and a connecting portion 44. The press contact piece 42 includes a plurality of press contact blades 42 a that are cut and raised from the press contact piece 42 and arranged in a direction intersecting with the longitudinal direction of the press contact connection portion 40. Between the pair of press contact pieces 42, an end portion of the electric wire having a round cross section is press-fitted, and the press contact blade 42a cuts the coating portion of the electric wire to contact the core wire and is electrically connected to the electric wire. Further, the crimping connection portion 40 is mechanically fixed to the electric wire by bending the caulking piece 43 in a direction in which the electric wire is pressed toward the bottom wall 41.

  The connecting portion 44 is provided on the side farther from the crimping piece 43 than the pressure contact piece 42. The connecting portion 44 is connected to the bottom wall 41 and is erected from both ends in the width direction of the bottom wall 41, and the rear side connecting pieces 46 are erected from both ends in the width direction of the bottom wall 41. And a pair of front side connection pieces 45 provided on the side farther from the pressure contact piece 42 than the connection piece 46. That is, the crimping connection portion 40 includes a caulking piece 43, a crimping piece 42, a rear side coupling piece 46, and a front side coupling piece 45 arranged in a line in order along the longitudinal direction of the pressure welding connection portion 40. The pair of rear side connecting pieces 46 has a cylindrical shape with their ends bent inwardly, and the pair of front side connecting pieces 45 are opposed to each other with a space therebetween. Such a connecting portion 44 is connected (connected) to the connecting portion 13 of the male contact portion 10 described above.

  As shown in FIG. 2B, the press contact terminal 1 </ b> B has a connecting portion 44 of the press contact connecting portion 40 superimposed on the bottom wall 14 of the connecting portion 13 of the male contact portion 10, and a pair of front caulking pieces 17. A pair of front connection pieces 45 are positioned between them, and a pair of rear connection pieces 46 are positioned between the pair of rear caulking pieces 18. Further, the pair of front side connecting pieces 45 are caulked to the pair of front side caulking pieces 17 so that the front side connecting piece 45 and the front side caulking piece 17 are electrically connected, and the pair of rear side connecting pieces 46 are caulked. By being caulked to the piece 18, the rear side connecting piece 46 and the rear side caulking piece 18 are mechanically connected. The press contact terminal 1B thus connected includes the insert 11, the main body 12, the front caulking piece 17 and the front connection piece 45, the rear caulking piece 18 and the rear connection piece 46, and the press contact piece 42. The caulking pieces 43 are arranged in a line in order.

  As shown in FIG. 3A, the piercing terminal 2A includes a female contact portion 20 and a piercing connection portion 30 as a wire connection portion to which an electric wire is electrically connected. The piercing connection 30 is the same as the piercing connection 30 of the piercing terminal 1A described above. In addition, the same code | symbol is attached | subjected to the same component as the piercing terminal 1A shown in FIG. 1, and description is abbreviate | omitted.

  The female-type contact portion 20 is made of a conductive metal or the like, and is manufactured separately from the piercing connection portion 30 as shown in FIGS. 3 (a) and 3 (b). A cylindrical portion 21 that accommodates the child, a spring piece (not shown), and a connecting portion 23 are provided.

  The cylindrical portion 21 includes a bottom wall 24, side walls 25 erected from both ends of the bottom wall 24 in the width direction, and a ceiling wall 26 that is continuous with the side walls 25 and spaced from the bottom wall 24. It is formed in the shape of a hollow prism having four walls. The cylinder part 21 is provided with an opening part at one end part in the longitudinal direction, and an inserter of a mating terminal fitting is inserted through the opening part. And the said spring piece urges | biases this inserter toward the inner surface of the cylinder part 21, and the female-type contact part 20 and the other party metal fitting are electrically connected. Further, the bottom wall 24 of the other end portion in the longitudinal direction of the cylindrical portion 21 is continuous with the connecting portion 23.

  The connecting portion 23 is connected to the bottom wall 24 at the other end of the cylindrical portion 21, and has a pair of front caulking pieces 27 erected from both widthwise end portions of the bottom wall 24, and both widthwise end portions of the bottom wall 24. And a pair of rear caulking pieces 28 provided on the side farther from the cylindrical portion 21 than the front caulking piece 27. The connecting portion 23 is connected (connected) to the connecting portion 33 of the piercing connection portion 30.

  Similarly to the male contact portion 10 having the above-described configuration, the female contact portion 20 having the above-described configuration can be used alone as a crimp terminal for connection to an electric wire.

  As shown in FIG. 3B, the piercing terminal 2A has the above-described linking portion 33 of the piercing connection portion 30 overlaid on the bottom wall 24 of the linking portion 23 of the female contact portion 20, and a pair of front sides. A pair of front connection pieces 34 are positioned between the caulking pieces 27, and a pair of rear connection pieces 35 are positioned between the pair of rear caulking pieces 28. Further, the pair of front coupling pieces 34 are caulked to the pair of front caulking pieces 27 so that the front coupling pieces 34 and the front caulking pieces 27 are electrically connected, and the pair of rear coupling pieces 35 are caulked. By being caulked to the piece 28, the rear side connecting piece 35 and the rear side caulking piece 28 are mechanically connected. In the piercing terminal 2A thus connected, the cylindrical portion 21, the front caulking piece 27 and the front connecting piece 34, the rear caulking piece 28 and the rear connecting piece 35, and the piercing piece 32 are sequentially arranged in a line. Has been.

  As shown in FIG. 4A, the press contact terminal 2B includes a female contact portion 20 and a press contact connection portion 40 as a wire connection portion to which an electric wire is electrically connected. The female contact portion 20 is the same as the female contact portion 20 of the piercing terminal 2A described above, and the press contact connection portion 40 is the same as the press contact connection portion 40 of the press contact terminal 1B described above. Yes. The same components as those of the piercing terminal 2A shown in FIG. 3 and the press contact terminal 1B shown in FIG.

  As shown in FIG. 4B, the pressure contact terminal 2 </ b> B has the above-described connection portion 44 of the pressure connection portion 40 superimposed on the bottom wall 24 of the connection portion 23 of the female contact portion 20, and a pair of front sides. A pair of front connection pieces 45 are positioned between the caulking pieces 27, and a pair of rear connection pieces 46 are positioned between the pair of rear caulking pieces 28. Further, the pair of front side connecting pieces 45 is caulked to the pair of front side caulking pieces 27 so that the front side connecting piece 45 and the front side caulking pieces 27 are electrically connected, and the pair of rear side connecting pieces 46 are caulked. By being caulked to the piece 28, the rear connecting piece 46 and the rear caulking piece 28 are mechanically connected. The press contact terminal 2B connected in this way includes the cylindrical portion 21, the front caulking piece 27 and the front connecting piece 45, the rear caulking piece 28 and the rear connecting piece 46, the press contact piece 42, and the caulking piece 43. Are arranged in a line in order.

  A method for manufacturing the terminal fittings 1A, 1B, 2A, 2B described above will be described. First, as shown in FIG. 5, the male contact portion 10, the female contact portion 20, the piercing connection portion 30, and the press contact connection portion 40 described above are manufactured separately. These are manufactured by bending a sheet metal obtained by punching a conductive metal sheet with a mold.

  Next, one of the male contact portion 10 and the female contact portion 20, one of the piercing connection portion 30 and the pressure contact connection portion 40 is selected according to the application, and the selected electrical contact portions 10 and 20 are connected. The portions 13 and 23 and the connecting portions 33 and 44 of the selected wire connecting portions 30 and 40 are overlapped, and the front caulking pieces 17 and 27 are bent inwardly with respect to the front connecting pieces 34 and 45. At the same time, the rear connection pieces 35 and 46 are caulked by bending the front ends of the rear caulking pieces 18 and 28 inward. In this way, the electrical contact portions 10 and 20 and the wire connection portions 30 and 40 are electrically and mechanically connected to manufacture the terminal fittings 1A, 1B, 2A, and 2B of the present embodiment.

  Thus, according to the terminal fittings 1A, 1B, 2A, 2B of this embodiment and the manufacturing method of the terminal fittings 1A, 1B, 2A, 2B, the terminal fittings 1A, 1B, 2A, 2B having different product numbers Since the parts 10, 20, 30, and 40 constituting the terminal fittings 1A, 1B, 2A, and 2B can be made common, it is possible to minimize the tolerance generated in the conventional terminal fittings. At the same time, the production cost of the terminal fittings 1A, 1B, 2A, 2B can be reduced by the mass production effect. Therefore, it is possible to manufacture terminal fittings 1A, 1B, 2A, and 2B that are inexpensive, have no variation, and have stable performance. Moreover, since the electrical contact portions 10 and 20 can be used as crimp terminals, the part number can be reduced.

  In addition to the above-described embodiments, in the present invention, the bottom walls 14 and 24 of the electrical contact portions 10 and 20 and the bottom walls 31 and 41 of the wire connection portions 30 and 40 are joined by a method such as ultrasonic bonding or spot welding. Then, the front connection pieces 34 and 45 and the rear connection pieces 35 and 46 can be caulked by the front caulking pieces 17 and 27 and the rear caulking pieces 18 and 28. By doing so, the connection strength between the electrical contact portions 10 and 20 and the wire connection portions 30 and 40 can be further increased.

  Moreover, the connection process of the electrical contact parts 10 and 20 and the electric wire connection parts 30 and 40 may be performed after the electric wire connection parts 30 and 40 are connected to the electric wire, and may be performed before being connected to the electric wire. It may be performed simultaneously with the connection with the electric wire. In addition, by performing this connection process after the electric wire connection portions 30 and 40 are connected to the electric wires, the electric contact portions 10 and 20 are damaged or deformed when the electric wires and the electric wire connection portions 30 and 40 are connected in the wire harness manufacturing process. Can be prevented.

  Further, the gist of the present invention is to stabilize the performance of the product by sharing parts and to reduce the cost due to the mass production effect, and the electrical contact portions 10 and 20 and the wire connection portions 30 and 40 are not necessarily manufactured. Also good. That is, only one type of the electrical contact portions 10 and 20, for example, only the male contact portion 10 is manufactured, and the male contact portion 10 and any one selected from the wire connection portions 30 and 40 can be connected. Alternatively, only the female contact portion 20 may be manufactured, and the female contact portion 20 may be connected to any one selected from the wire connection portions 30 and 40. Further, only one type of the wire connection portions 30 and 40, for example, only the piercing connection portion 30 may be manufactured, and the piercing connection portion 30 and any one selected from the electrical contact portions 10 and 20 may be coupled. In addition, it is possible to manufacture another wire connection portion having a shape different from that of the wire connection portions 30 and 40 described in the present embodiment, and to connect to any one selected from the electrical contact portions 10 and 20. is there.

  In addition, embodiment mentioned above only showed the typical form of this invention, and this invention is not limited to embodiment. That is, various modifications can be made without departing from the scope of the present invention.

FIG. 1A is a perspective view showing a piercing terminal having a male contact portion according to an embodiment of the present invention, and FIG. 1B is an exploded view of the piercing terminal shown in FIG. It is a perspective view. 2A is a perspective view showing a press contact terminal having a male contact portion according to an embodiment of the present invention, and FIG. 2B is an exploded view of the press contact terminal shown in FIG. 2A. It is a perspective view. FIG. 3A is a perspective view showing a piercing terminal having a female contact portion according to an embodiment of the present invention, and FIG. 3B is an exploded view of the piercing terminal shown in FIG. It is a perspective view. 4A is a perspective view showing a press contact terminal having a female contact portion according to an embodiment of the present invention, and FIG. 4B is an exploded view of the press contact terminal shown in FIG. 4A. It is a perspective view. It is a perspective view explaining the manufacturing method of the terminal metal fitting shown in FIG.

Explanation of symbols

1A Piercing terminal (terminal fitting)
1B Pressure contact terminal (terminal fitting)
2A Piercing terminal (terminal fitting)
2B Pressure contact terminal (terminal fitting)
10 Male contact part (electric contact part)
17 Front caulking piece (caulking piece)
18 Rear caulking piece (caulking piece)
20 Female contact part (electric contact part)
27 Front caulking piece (caulking piece)
28 Rear caulking piece (caulking piece)
30 Piercing connection (wire connection)
33 Connecting part 40 Pressure connection part (wire connection part)
44 Connecting part

Claims (4)

A method of manufacturing a terminal fitting comprising: a wire connecting portion to which an electric wire is connected; and an electrical contact portion having a caulking piece capable of caulking the electric wire while being electrically connected to a counterpart terminal fitting. And
A plurality of types of the electric wire connecting portions having different shapes and a plurality of types of the electrical contact portions having different shapes are manufactured separately,
The electric contact portion is erected from both ends in the width direction of the bottom wall as the caulking piece, and has a pair of front caulking pieces and a pair of rear caulking pieces to which electric wires can be connected,
The electric wire connecting portion is erected from both ends of the width direction of the rear side connecting piece and the bottom wall, and has a pair of front side connecting pieces whose height is lower than the pair of front side caulking pieces,
Depending on the application, select one each from the wire connection part and the electrical contact part,
The pair of front connection pieces of the selected one electric wire connection portion is caulked so as to cover the pair of front connection pieces with the pair of front caulking pieces of the selected one electric contact portion, and selected. The terminal fitting is manufactured by caulking the rear connecting piece of one electric wire connecting portion with the pair of rear caulking pieces of the selected one electric contact portion so as to cover the rear connecting piece. A method for manufacturing a terminal fitting. 2. The method of manufacturing a terminal fitting according to claim 1, wherein a piercing connection portion that breaks through the electric wire and caulks the electric wire and a pressure connection portion that presses the electric wire are provided as the electric wire connection portion. A terminal fitting comprising: an electric wire connecting portion to which an electric wire is connected; and an electrical contact portion having a caulking piece capable of being caulked with an electric wire while being electrically connected to a counterpart terminal fitting,
A plurality of types of the electric wire connecting portions having different shapes and a plurality of types of the electric contact portions having different shapes are manufactured separately,
The electric contact portion is erected from both ends in the width direction of the bottom wall as the caulking piece, and has a pair of front caulking pieces and a pair of rear caulking pieces to which electric wires can be connected,
The electric wire connecting portion is erected from both ends of the width direction of the rear side connecting piece and the bottom wall, and has a pair of front side connecting pieces whose height is lower than the pair of front side caulking pieces,
The pair of front connecting pieces of the one electric wire connecting portion selected according to the application is caulked so as to be covered with the pair of front caulking pieces of the one electric contact portion selected according to the application. The rear connecting piece of the one electric wire connection portion selected according to the application is caulked so as to be covered with the pair of rear caulking pieces of the electric contact portion selected according to the application. It is manufactured by the terminal fitting characterized by the above-mentioned. The terminal fitting according to claim 3 , wherein a piercing connection portion that breaks through the electric wire and caulks the electric wire and a pressure connection portion that presses the electric wire are provided as the electric wire connection portion.

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