JP2008066271A - Terminal original plate, continuous terminal, terminal original plate manufacturing method, continuous terminal manufacturing method, and terminal-equipped wire manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a terminal original plate, a continuous terminal, a terminal original plate manufacturing method, a continuous terminal manufacturing method, and a terminal-equipped wire manufacturing method capable of reducing the material cost. <P>SOLUTION: This terminal original plate has a plurality of terminal spread portions 1 as a unitary block having a spread shape of terminals 11. The respective terminal spread portions 1 are arranged in a particular direction intersecting the axis direction thereof, and the terminal spread portions 1 adjacent to each other are connected to each other in a region between both the ends in the axis direction thereof. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a terminal original plate, a method for manufacturing a terminal original plate, a continuous terminal, a method for manufacturing a continuous terminal, and a method for manufacturing an electric wire with a terminal.

  2. Description of the Related Art Conventionally, there is known a continuous terminal in which a large number of terminals are continuously arranged at predetermined intervals along the longitudinal direction of a band-shaped carrier (for example, see Patent Document 1).

FIG. 15 shows the configuration of a continuous terminal according to such a conventional example. As shown in FIG. 15, the conventional continuous terminal integrally includes a carrier 101 extending in a predetermined direction and a plurality of terminals 102, and these terminals 102 are arranged in a direction along the carrier 101, respectively. It is connected. In other words, the carrier 101 and the plurality of terminals 102 are arranged in a direction orthogonal to the arrangement direction of the terminals 102. Further, this conventional continuous terminal is manufactured using a terminal original plate shown in FIG. 16 punched from a single metal plate, and a plurality of terminal development portions 102a connected to the carrier 101 of the terminal original plate are bent. Thus, the plurality of terminals 102 are formed.
JP-A-5-326055

  In order to manufacture the conventional continuous terminal shown in FIG. 15, it is necessary to use a metal original plate having a width equal to or larger than the sum of the axial dimension of the terminal 102 and the width dimension of the carrier 101. Moreover, the carrier 101 is a portion that is discarded after the terminal 102 is crimped to the electric wire. Therefore, this conventional continuous terminal has a problem that the material cost increases because the material cost is increased by the amount of the carrier 101.

  The present invention has been made to solve the above-described problems, and its object is to provide a terminal original plate, a continuous terminal, a method for manufacturing a terminal original plate, and a method for manufacturing a continuous terminal capable of reducing material costs. And the manufacturing method of the electric wire with a terminal is to be provided.

  In order to achieve the above object, a terminal original plate of the present invention is a terminal original plate integrally having a plurality of terminal extended portions having a developed shape of terminals, and each terminal expanded portion is in a specific direction intersecting the axial direction. Arranged and adjacent terminal development portions are connected to each other in a region between both ends in the axial direction.

  In this terminal original plate, adjacent terminal development portions are connected to each other in a region between both ends in the axial direction, so that the terminal original plate has a width in the axial dimension of the terminal development portion. A metal original plate can be used. Thereby, material cost can be reduced compared with the case where the metal original plate which has the width more than the dimension which added the dimension of the axial direction of a terminal deployment part and the dimension of the width direction of a carrier like the past is used. .

  In the terminal original plate, the plurality of terminal expanding portions have an electric connecting portion expanding portion having an expanding shape of an electric connecting portion electrically connected to a counterpart terminal and a expanding shape of a crimping portion to be crimped to an electric wire. It is preferable that each has a crimping part developing part extending in the specific direction, and the crimping part developing parts of the adjacent terminal developing parts are directly connected to each other. If comprised in this way, the structure where the adjacent terminal expansion | deployment parts are mutually connected within the area | region between the both ends of those axial directions can be comprised easily.

  In this terminal original plate, the length in the longitudinal direction of the crimping portion deployment portion is larger than the length of the region other than the crimping portion deployment portion of the terminal deployment portion along the longitudinal direction, and the crimping portion deployment portion of the adjacent terminal deployment portion. The portions extending in the direction of each other overlap each other in the longitudinal direction, and are formed in a shape that does not overlap each other in the width direction orthogonal to the longitudinal direction, and at the end in the width direction orthogonal to the longitudinal direction. They may be bonded to each other. If comprised in this way, even when the length of the longitudinal direction of a crimping | deployment part expansion | deployment part is larger than the length of area | regions other than the crimp | compression-bonding part expansion | deployment part of the terminal expansion | deployment part along the longitudinal direction, crimping | bonding of an adjacent terminal expansion | deployment part Since it is possible to connect the overlapping parts in the longitudinal direction without interfering with each other, it is possible to connect the adjacent expanding parts in the longitudinal direction of the expanding part. Thus, the adjacent terminal development portions can be arranged close to each other. Thereby, each length formed from the terminal expansion part due to the fact that the length in the longitudinal direction of the crimping part development part is larger than the length of the region other than the crimping part development part of the terminal development part along the longitudinal direction. An increase in the distance between the terminals can be suppressed.

  The continuous terminal of the present invention is a plurality of terminals arranged in the specific direction, on the premise that the continuous terminal is a continuous terminal produced by using a terminal original plate in which the crimping part development parts of the terminal development part are directly connected to each other. A plurality of terminals each have an electrical connection part formed by bending the electrical connection part development part of the terminal development part and a crimping part development part. The crimping part development parts are directly connected to each other.

  Since this continuous terminal can be manufactured using a terminal original plate in which adjacent terminal development portions are connected to each other in a region between both ends in the axial direction, the material cost is reduced as in the case of the terminal original plate. can do.

  The method for manufacturing a continuous terminal according to the present invention includes a step of punching a terminal base plate in which the crimped portion developed portions of the terminal developed portion are directly connected to each other from a single metal plate, and an electric connecting portion developed portion of the terminal developed portion. Forming an electrical connection portion by bending, and forming a plurality of terminals having electrical connection portions connected to each other at the crimping portion development portion.

  In this method of manufacturing a continuous terminal, it is possible to form a continuous terminal in which adjacent terminals are connected to each other within a region between both ends in the axial direction. can do.

  A method for manufacturing a wire with a terminal according to the present invention is a method for manufacturing a wire with a terminal using a continuous terminal produced by the above-described method for manufacturing a continuous terminal, and cuts a joint portion between crimped portion developed portions of adjacent terminals. Then, a crimping part is formed from the crimping part developing part and a crimping part is crimped to the electric wire.

  In this method of manufacturing an electric wire with a terminal, since the electric wire with a terminal can be produced using the continuous terminal produced by the production method of the continuous terminal, the material cost is reduced as in the production method of the continuous terminal. be able to.

  In the terminal original plate in which the adjacent terminal expansion portions are connected to each other in a region between both ends in the axial direction, the plurality of terminal expansion portions are electrical connection portions that are electrically connected to the counterpart terminal. The specific direction of the region other than the electrical connection part development part in each terminal development part, each having an electrical connection part development part having a development shape and a crimping part development part having a development shape of the crimping part to be crimped to the electric wire The length along the connection direction is smaller than the length of the electrical connection portion deployment portion along the specific direction, and the regions other than the electrical connection portion deployment portion of the adjacent terminal deployment portions are provided between them. It is preferable that they are connected to each other through the sections. If comprised in this way, the structure where the adjacent terminal expansion | deployment parts are mutually connected within the area | region between the both ends of those axial directions can be comprised easily. Moreover, in this structure, since the length along the specific direction of the region other than the electric connection portion expansion portion in each terminal expansion portion is smaller than the length of the electric connection portion expansion portion along the specific direction. In addition, there is an unnecessary region that does not constitute a terminal between regions other than the electrical connection portion development portion of the adjacent terminal development portion. And in this structure, while the connection part between terminals is provided in this unnecessary area | region, areas other than the electrical connection part expansion | deployment part of an adjacent terminal expansion | deployment part are mutually connected via the connection part between terminals. Yes. Thereby, the plurality of terminals formed from the plurality of terminal expansion portions are connected to each other by the inter-terminal connection portion formed by using the portion between the regions other than the electrical connection portion expansion portion that is discarded as an unnecessary portion originally. Therefore, it is possible to suppress an increase in material cost for connecting a plurality of terminals formed from a plurality of terminal expansion portions to each other.

  In this terminal original plate, in the area other than the electrical connection part development part, the core wire crimping part development part having a developed shape of the core wire crimping part crimped to the core part of the electric wire and the covering crimping applied to the insulation coating part of the electric wire A cover crimping portion developing portion having a developed shape of the portion, and a connecting portion connecting the core wire crimping portion developing portion and the covering crimping portion developing portion, and the inter-terminal connecting portion connects adjacent core wire crimping portion developing portions. It is preferable that the connection part between core crimping | compression-bonding parts, the connection part between coating | coated crimping | compression-bonding parts which connect adjacent covering crimping part expansion | deployment parts, and the connection part between connecting parts which connect adjacent connection parts are included. If comprised in this way, each area | region of a core wire crimping part expansion | deployment part, coating | coated crimping | compression-bonding part expansion | deployment part, and a connection part among areas other than the electrical connection part expansion | deployment part of a terminal expansion | deployment part will each be adjacent to the terminal expansion | deployment part of a core wire crimping part. And it can connect with a covering crimping | compression-bonding part expansion | deployment part and a connection part. For this reason, the area of the part which connects adjacent terminal expansion | deployment parts is enlarged compared with the case where adjacent terminal expansion | deployment parts are connected only in any one of a core wire crimping part expansion | deployment part, a covering crimping | compression-bonding part expansion | deployment part, and a connection part. Can do. As a result, it is possible to make warpage and meandering less likely to occur when bending the terminal from each terminal development part while feeding the terminal original plate in the specific direction, so that the processing speed of the terminal due to warpage and meandering is reduced. The decrease can be suppressed.

  In the terminal original plate in which the regions other than the electrical connection portion deployment portion of the adjacent terminal deployment portions are connected to each other via the inter-terminal connection portion provided between them, in the region other than the electrical connection portion deployment portion, A core wire crimping portion developing portion having a developed shape of the core wire crimping portion to be crimped to the core wire portion of the electric wire is included, and the inter-terminal connecting portion includes a connecting portion between the core wire crimping portions connecting the adjacent core wire crimping portion developing portions. In addition, each core wire crimping portion developing portion and each core wire crimping portion connecting portion continuous along the specific direction span the core wire crimping portion developing portion and the core wire crimping portion connecting portion so as to extend in the continuous direction. It is preferable that a protrusion is provided. If comprised in this way, since the intensity | strength of each core wire crimping part expansion | deployment part and each core wire crimping part connection part which continues along the said specific direction can be improved with a protrusion, a terminal original board is sent to the said specific direction. However, warping and meandering are less likely to occur when the terminal is bent from each terminal development portion. Thereby, the fall of the processing speed of the terminal resulting from generation | occurrence | production of curvature and meandering can be suppressed.

  In the terminal original plate in which the regions other than the electrical connection portion deployment portion of the adjacent terminal deployment portions are connected to each other via the inter-terminal connection portion provided between them, in the region other than the electrical connection portion deployment portion, , A core wire crimping portion developing portion having a developed shape of a core wire crimping portion to be crimped to the core portion of the electric wire, and a covering crimping portion developing portion having a developed shape of the covering crimping portion to be crimped to the insulating coating portion of the electric wire are included. The electrical connection part development part, the core wire crimping part development part, and the covering crimping part development part are arranged in this order in the axial direction of the terminal development part, and the inter-terminal connecting part connects adjacent core crimping part development parts. It is preferable to consist of the connection part between core wire crimping parts. If comprised in this way, the electrical connection part expansion | deployment part and the covering crimping | compression-bonding part expansion | deployment part were each arrange | positioned on the both sides of the axial direction of a terminal original board on both sides of each core wire crimping part connected via the connection part between core wire crimping | crimping parts. Since the structure can be configured, the balance between the strain generated when bending the electrical connection portion from the electrical connection portion developing portion and the strain generated when bending the coating crimp portion from the coating crimp portion developing portion is balanced. Can do. For this reason, it can suppress that a curvature and meandering arise in the continuous terminal produced from the terminal original board due to the distortion which arises by these bending processes.

  The continuous terminal according to the present invention is manufactured by using a terminal original plate in which the regions other than the electrical connection portion development portion of the adjacent terminal development portions are connected to each other via an inter-terminal connection portion provided therebetween. Assuming that the terminal is a continuous terminal, the terminal has a plurality of terminals arranged in the specific direction, and the plurality of terminals are formed by bending the electrical connection part development part of the terminal development part. Each has an electrical connection portion and a region other than the electrical connection portion, and regions other than the electrical connection portion of adjacent terminals are connected to each other via an inter-terminal connection portion.

  Since this continuous terminal can be manufactured using a terminal original plate in which adjacent terminal development portions are connected to each other via an inter-terminal connecting portion in a region between both ends in the axial direction, the terminal original plate. As with, material costs can be reduced.

  The continuous terminal according to the present invention is based on the premise that the inter-terminal connecting portion is a continuous terminal manufactured using a terminal original plate composed of a connecting portion between core wire crimping portions connecting adjacent core wire crimping portions developing portions. A plurality of terminals arranged in a direction are integrally formed, and the plurality of terminals are bent by an electric connection portion formed by bending the electric connection portion expansion portion of the terminal expansion portion and a covering crimping portion expansion portion. Each has a coated crimping part formed by processing and a core wire crimping part developing part, and the core wire crimping part developing parts of adjacent terminals are connected to each other via a connecting part between core wire crimping parts.

  Since this continuous terminal can be manufactured using a terminal original plate in which adjacent terminal development parts are connected to each other via a connecting part between core wire crimping parts in a region between both ends in the axial direction, the above-mentioned The material cost can be reduced like the terminal original plate. In addition, this continuous terminal constitutes a structure in which the electrical connection portion and the covering crimp portion are arranged on both sides in the axial direction of the terminal with each core wire crimp portion connected via the connecting portion between the core wire crimp portions interposed therebetween. Therefore, it is possible to balance the distortion that occurs when the electrical connection portion is bent and the distortion that occurs when the coated crimping portion is bent, and suppresses warping and meandering of the continuous terminals. be able to.

  In the method for manufacturing a continuous terminal according to the present invention, a terminal original plate in which the regions other than the electrical connection portion development portion of the adjacent terminal development portions are connected to each other via an inter-terminal connection portion provided therebetween. The process of punching from one metal plate and the electrical connection part of the terminal development part are bent to form an electrical connection part, thereby connecting to each other in the region other than the electrical connection part via the inter-terminal connection part. Forming a plurality of terminals having electrical connection portions.

  In this continuous terminal manufacturing method, since the adjacent terminals can be connected to each other via the inter-terminal connecting portion in the region between both ends in the axial direction, the continuous terminal and Similarly, material costs can be reduced.

  The method for manufacturing a continuous terminal according to the present invention includes a step of punching out a terminal original plate composed of a connecting portion between core wire crimping portions connecting the core crimping portion developing portions adjacent to each other between the terminal connecting portions, from a single metal plate, A step of forming an electrical connection part by bending the electrical connection part development part of the terminal development part, and a step of forming a coating crimp part by bending the coating crimp part development part. A plurality of terminals having an electrical connection portion and a covering crimp portion connected to each other at the core wire crimping portion developing portion by the coupling portion are formed.

  In the manufacturing method of this continuous terminal, since the adjacent terminals can be connected to each other through the connecting portion between the core wire crimping portions in the region between both ends in the axial direction, the continuous terminal is formed. As with the terminal, the material cost can be reduced. Also, in this continuous terminal manufacturing method, the continuous terminals in which the electrical connection portions and the covering crimp portions are respectively disposed on both sides in the axial direction of the terminals with the core wire crimp portions connected via the connecting portions between the core wire crimp portions interposed therebetween. Therefore, it is possible to balance the distortion that occurs when bending the electrical connection part and the distortion that occurs when bending the coated crimping part, and warping and meandering occur in the continuous terminals. Can be suppressed.

  The manufacturing method of the electric wire with a terminal by this invention is a manufacturing method of the electric wire with a terminal using the continuous terminal produced by the manufacturing method of said continuous terminal, Comprising: The coupling | bond part of a terminal and the connection part between terminals was cut | disconnected. Then, the process of crimping | bonding the crimp part formed from the crimp part expansion part to an electric wire is provided.

  In this method of manufacturing an electric wire with terminal, since the electric wire with terminal can be manufactured using the continuous terminal manufactured by the above-described manufacturing method of the continuous terminal, the material cost can be reduced.

  A method for manufacturing a terminal original plate according to the present invention is a method for manufacturing a terminal original plate for manufacturing any one of the above terminal original plates, and is a pair extending in parallel with each other along a longitudinal direction of the metal original plate from a single metal original plate. A step of punching out the terminal original plate. Then, in the step of punching out the pair of terminal original plates, a predetermined portion of the terminal expanded portion of the other terminal original plate is located in a region between the adjacent terminal expanded portions of one of the terminal original plates, The pair of terminal original plates are punched from the metal original plate in such a form that the terminal development portions of the pair of terminal original plates overlap with each other in the axial direction thereof.

  In this method of manufacturing a terminal original plate, a pair of terminal original plates are punched from a single metal original plate in such a form that the terminal expanded portions do not interfere with each other and the terminal expanded portions overlap each other in the axial direction. be able to. By the way, in the case of punching only one row of terminal original plates from a single metal original plate as in the prior art, in order to manufacture two rows of terminal original plates, two metals having a width in the axial direction dimension of the terminal expansion portion are used. An original plate is required. On the other hand, in this method of manufacturing the terminal original plate, two rows of terminal original plates are punched from a single metal original plate in a form in which the terminal expanded portions overlap each other in the axial direction. A single metal original plate having a width smaller than the sum of these dimensions can be used as the material. For this reason, material cost can be reduced.

  The method of manufacturing a continuous terminal according to the present invention includes a step of punching out any one of the terminal original plates including the electric connecting portion expanding portion from a single metal original plate, and bending the electric connecting portion expanding portion of the terminal expanding portion. Forming a plurality of terminals connected to each other in a region other than the electrical connection portion by forming the electrical connection portion. And the step of punching the terminal original plate includes a step of punching a pair of terminal original plates extending parallel to each other along the longitudinal direction of the metal original plate from a single metal original plate, and the step of punching the pair of terminal original plates, A predetermined portion of the terminal expansion part of the other terminal original plate is located in a region between adjacent terminal expansion parts of one of the terminal original plates, and the terminal expansion parts of the pair of terminal original plates are The pair of terminal original plates are punched from the metal original plate in a form overlapping with each other in the axial direction.

  In this continuous terminal manufacturing method, a pair of terminal original plates are punched from a single metal original plate in such a manner that the terminal extended portions do not interfere with each other and the terminal extended portions overlap with each other in the axial direction. In addition, a continuous terminal can be manufactured using the punched terminal original plate. By the way, when manufacturing a continuous terminal from only one row of terminal original plates from a single metal original plate as in the prior art, Two original metal plates having a width in the direction dimension are required. On the other hand, in this manufacturing method of continuous terminals, two rows of terminal original plates are punched from a single metal original plate in such a manner that the terminal expanded portions of each other overlap in the axial direction. A single metal original plate having a width smaller than the sum of these dimensions can be used as the material. For this reason, material cost can be reduced.

  As described above, according to the present invention, the material cost can be reduced.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
FIG. 1 is a top view showing a configuration of a terminal original plate according to a first embodiment of the present invention. First, with reference to FIG. 1, the structure of the terminal original plate by 1st Embodiment of this invention is demonstrated.

  As shown in FIG. 1, the terminal original plate according to the first embodiment is integrally provided with a plurality of identical terminal development portions 1 and is formed by punching from a single metal thin plate. Each of the plurality of terminal expanding portions 1 has a developed shape of a terminal 11 constituting a continuous terminal described later. And each terminal expansion | deployment part 1 is arranged in the specific direction orthogonal to the axial direction. And each terminal expansion | deployment part 1 has the electrical connection part expansion | deployment part 2, the wire barrel expansion | deployment part 3, and the insulation barrel expansion | deployment part 4 (crimp part expansion | deployment part), respectively.

  The electrical connection part deployment part 2 has a developed shape of an electrical connection part 12 of a terminal 11 described later, and the wire barrel development part 3 has a developed shape of a wire barrel 13 of a terminal 11 described later. The insulation barrel developing portion 4 has a developed shape of an insulation barrel (not shown) of the terminal 11 described later. And the electrical connection part expansion | deployment part 2 is provided in the area | region from the one end side of the longitudinal direction of the terminal expansion | deployment part 1 to the center part vicinity of the longitudinal direction of the terminal expansion | deployment part 1, The insulation barrel expansion | deployment part 4 is It is provided on the other end side in the longitudinal direction of the terminal development portion 1. Further, the wire barrel development part 3 is provided in a region between the electrical connection part development part 2 and the insulation barrel development part 4. The wire barrel development part 3 extends along a width direction orthogonal to the longitudinal direction of the terminal development part 1, and has three protrusions 3 a that protrude upward and extend in the width direction of the terminal development part 1. is doing. The three protrusions 3 a are provided at a predetermined interval in the longitudinal direction of the terminal development portion 1.

  The insulation barrel development part 4 extends in the width direction (arrangement direction of each terminal development part 1) orthogonal to the longitudinal direction of the terminal development part 1. Further, the length in the longitudinal direction of the insulation barrel deploying portion 4 is the region other than the insulation barrel deploying portion 4 of the terminal deploying portion 1 along the longitudinal direction (the electrical connecting portion deploying portion 2 and the wire barrel deploying portion 3). ) Is set to a length larger than the length of. And in the terminal original board by 1st Embodiment, the insulation barrel expansion | deployment parts 4 of the adjacent terminal expansion | deployment part 1 are mutually connected directly. Thereby, in the terminal original plate by this 1st Embodiment, the adjacent terminal expansion | deployment parts 1 are mutually connected in the area | region between the both ends of those axial directions.

  Specifically, the portions extending in the mutual direction of the insulation barrel developing portions 4 of the adjacent terminal developing portions 1 overlap with each other in the longitudinal direction, but do not overlap with each other in the width direction orthogonal to the longitudinal direction. Is formed. That is, on one of the portions of the adjacent insulation barrel expanding portions 4 extending in the mutual direction, the end edge on the opposite side to the electric connecting portion expanding portion 2 approaches the electric connecting portion expanding portion 2 side as it goes to the tip side. On the other hand, it is formed so that the edge on the side of the electrical connection portion development portion 2 is in the shape of a diagonal line away from the electrical connection portion development portion 2 as it goes to the distal end side. And the diagonal edge of the part extended to the mutual direction of this adjacent insulation barrel expansion | deployment part 4 is mutually couple | bonded in the area | region of the front-end | tip part overlapped in the longitudinal direction. Thus, the continuous terminal by 1st Embodiment is comprised by the several terminal expansion | deployment part 1 being directly connected mutually in the insulation barrel expansion | deployment part 4. FIG. In addition, a through hole 4 a is provided in the center portion in the longitudinal direction of the insulation barrel developing portion 4.

  As described above, in the terminal original plate according to the first embodiment, the adjacent terminal development parts 1 are directly connected to each other by the insulation barrel development part 4 in the region between both ends in the axial direction. In order to manufacture the original plate, a metal original plate having a width in the axial direction of the terminal expansion portion 1 can be used. Thereby, material cost can be reduced compared with the case where the metal original plate which has the width more than the dimension which added the dimension of the axial direction of a terminal deployment part and the dimension of the width direction of a carrier like the past is used. .

  Moreover, in the terminal original plate by 1st Embodiment, while the part extended in the mutual direction of the insulation barrel expansion | deployment part 4 of the adjacent terminal expansion | deployment part 1 mutually overlaps in the longitudinal direction, in the width direction orthogonal to the longitudinal direction Terminals that are formed in shapes that do not overlap each other and that are joined to each other at the ends in the width direction perpendicular to the longitudinal direction, so that the length in the longitudinal direction of the insulation barrel developing portion 4 is the terminal along the longitudinal direction Even if it is larger than the length of the region other than the insulation barrel development part 4 of the development part 1, the insulation barrel development parts 4 of the adjacent terminal development parts 1 overlap each other in the longitudinal direction without interfering with each other. Can be combined. Thereby, compared with the case where the insulation barrel expansion | deployment parts 4 of the adjacent terminal expansion | deployment part 1 are couple | bonded with the edge of the longitudinal direction of the insulation barrel expansion | deployment part 4, the adjacent terminal expansion | deployment parts 1 are arrange | positioned close together. can do. Thereby, the length of the longitudinal direction of the insulation barrel development part 4 is larger than the length of the region other than the insulation barrel development part 4 of the terminal development part 1 along the longitudinal direction. It is possible to suppress an increase in the interval between the terminals 11 formed from 1 described later.

  FIG. 2 is a top view showing the configuration of the continuous terminal according to the first embodiment of the present invention. FIG. 3 is a top view showing a state in which the covered electric wire 20 is set on the terminal 11 constituting the continuous terminal shown in FIG. Next, the configuration of the continuous terminal according to the first embodiment of the present invention will be described with reference to FIGS.

  The continuous terminal according to the first embodiment is formed by using the terminal original plate (see FIG. 1), and is formed by bending each part of the terminal original plate. As shown in FIG. 2, the continuous terminal includes a plurality of terminals 11 integrally. The terminal 11 is crimped to the covered electric wire 20 (electric wire) (see FIG. 3) and attached to the connector housing. When the connector is mated with the mating connector, the terminal 11 is coupled to the mating connector terminal. And make an electrical connection. In the continuous terminal according to the first embodiment, a large number of terminals 11 are arranged at predetermined intervals in a specific direction orthogonal to the axial direction. Each terminal 11 integrally has an electrical connecting portion 12, an insulation barrel developing portion 4, and a wire barrel 13.

  The electrical connecting portion 12 is formed by bending the electrical connecting portion developing portion 2 of the terminal original plate, and is a region from one end side in the longitudinal direction of the terminal 11 to the central portion in the longitudinal direction of the terminal 11. Is provided. The electrical connection portion 12 is a portion that is electrically connected to the terminal of the mating connector.

  The insulation barrel developing part 4 is provided at the end of the terminal 11 opposite to the electrical connecting part 12 in the longitudinal direction. The insulation barrel development part 4 has the same shape as the insulation barrel development part 4 of the terminal original plate, and when the terminal 11 is formed by bending from each terminal development part 1 of the terminal original plate, the insulation barrel development part 4 The part 4 is obtained by maintaining its shape without being bent. Therefore, also in this continuous terminal, the insulation barrel expansion | deployment parts 4 of the adjacent terminal 11 are directly connected with each other with the form similar to the case of the said terminal original plate. Thereby, in this continuous terminal, adjacent terminals 11 are directly connected to each other in a region between both ends in the axial direction.

  Further, the insulation barrel developing portion 4 is a portion having a developed shape of an insulation barrel (not shown) to be crimped to the insulating covering portion 22 of the covered electric wire 20. At the time of press-bonding to the insulating coating portion 22, the joint portion between the adjacent insulation barrel development portions 4 is cut, and the insulation barrel development portion 4 is bent to form an insulation barrel having a U-shaped cross section ( (Not shown) is formed. And while the insulation coating part 22 is set in the insulation barrel, an insulation barrel is crimped | bonded with respect to the insulation coating part 22 so that the insulation coating part 22 may be held by the insulation barrel. .

  Moreover, the insulation barrel development part 4 has the same through-hole 4a as the insulation barrel development part 4 of the said terminal original plate, and the terminal 11 is crimped | bonded to the covered electric wire 20 using the continuous terminal by 1st Embodiment. At this time, the feeding mechanism of the crimping machine hooks the portion of the through hole 4a and pulls the continuous terminal to supply the terminals 11 to the crimping portion to the covered electric wire 20 in order.

  The wire barrel 13 is formed by bending the wire barrel development part 3 of the terminal original plate, and is provided in a region between the electrical connection part 12 and the insulation barrel development part 4. The wire barrel 13 is a portion to be crimped to the core wire portion 21 of the covered electric wire 20, and has a cross-section U opened to the upper side formed by bending both ends in the longitudinal direction of the wire barrel development portion 3 of the terminal original plate. It has a letter shape. When crimping the terminal 11 to the covered electric wire 20, the core wire portion 21 of the covered electric wire 20 is set in the wire barrel 13 having a U-shaped cross section, and the wire barrel 13 is caulked against the core wire portion 21. The core wire portion 21 of the covered electric wire 20 is held by the wire barrel 13.

  Further, on the inner side surface of the wire barrel 13, three protrusions 13 a that protrude inward of the wire barrel 13 are provided. The three protrusions 13 a are portions corresponding to the three protrusions 3 a of the terminal original plate, and are provided at predetermined intervals in the longitudinal direction of the terminal 11. When the wire barrel 13 is crimped to the core wire portion 21 of the covered electric wire 20 as described above, the protruding portion 3a bites into the core wire portion 21 so that the core wire portion 21 does not easily come off from the wire barrel 13, and the core wire portion 21 and the wire By increasing the contact area with the barrel 13, their electrical connection is ensured.

  As described above, since the continuous terminals according to the first embodiment can be manufactured by using the terminal original plates in which the adjacent terminal development portions 1 are connected to each other in the region between both ends in the axial direction, The material cost can be reduced as in the case of the terminal original plate.

  FIG. 4 is a schematic view showing a configuration of a production line used in the method for producing a continuous terminal according to the first embodiment of the present invention. Next, with reference to FIGS. 1-4, the manufacturing method of the continuous terminal by 1st Embodiment and the manufacturing method of the electric wire with a terminal are demonstrated.

  In the manufacturing method of the continuous terminal according to the first embodiment, the continuous terminal is manufactured by a series of continuous processes using a manufacturing line as shown in FIG. This production line includes a punching portion 201 for producing a terminal original plate, a terminal forming portion 202 for forming the terminal 11 from the terminal unfolding portion 1 of the terminal original plate, and a winding portion 203 for winding the produced continuous terminal on a reel. I have.

  In this production line, first, a long and wide metal thin plate 100 (metal plate), which is a material for the terminal original plate and the continuous terminal, is sequentially fed into the punched portion 201 along its longitudinal direction. Then, by punching the metal thin plate 100 in the punching portion 201, the terminal original plate according to the first embodiment shown in FIG. 1 is manufactured. Then, the produced terminal original plate is sequentially fed into the terminal molding unit 202.

  In the terminal molding part 202, the continuous terminal according to the first embodiment shown in FIG. 2 is produced by bending the terminal development part 1 of the terminal original plate. Specifically, the terminal molding part 202 of the manufacturing line has a mold, and the terminal 11 is formed by pressing the terminal development part 1 in this mold. At this time, the electrical connection part 12 is formed by bending the electrical connection part development part 2 of the terminal development part 1, and the cross section U is formed by bending the wire barrel development part 3 of the terminal development part 1. A letter-shaped wire barrel 13 is formed. At this time, the insulation barrel development part 4 of the terminal development part 1 is not bent, and as shown in FIG. 2, the shape is maintained as the shape of the insulation barrel development part 4 in the terminal original plate of FIG. The In this way, a continuous terminal in which each terminal 11 is directly connected by the insulation barrel developing portion 4 is produced. Thereafter, the produced continuous terminals are sequentially wound around the reel in the winding unit 203.

  Next, a terminal-attached electric wire (wire harness) is produced using the continuous terminals produced as described above. In the manufacturing process of the electric wire with terminal, the continuous terminal wound around the reel is attached to the crimping machine, and the continuous terminal is sequentially pulled out from the reel, and the terminal is connected to the crimping part for crimping the terminal 11 to the covered electric wire 20 of the crimping machine. 11 is supplied. And in the crimping | compression-bonding part, after the coupling | bond part of the insulation barrel expansion | deployment part 4 of the supplied terminal 11 and the insulation barrel expansion | deployment part 4 of the adjacent terminal 11 couple | bonded with it is cut | disconnected, the insulation barrel expansion | deployment part 4 By bending, an insulation barrel (not shown) having a U-shaped cross section is formed.

  Then, the covered electric wire 20 is set so that the core wire portion 21 is located in the wire barrel 13 of the terminal 11 and the insulating covering portion 22 is located in the insulation barrel (not shown). Thereafter, the core wire portion 21 and the wire barrel 13 of the covered electric wire 20 are crimped and the insulation coating portion 22 and the insulation barrel (not shown) are crimped, whereby the terminal 11 and the covered electric wire 20 are coupled. The In this way, a terminal-attached electric wire is produced.

  As described above, in the continuous terminal manufacturing method according to the first embodiment, the adjacent terminals 11 are directly connected to each other by the insulation barrel expanding portion 4 in the region between both axial ends thereof. As in the continuous terminal according to the first embodiment, the material cost can be reduced.

  Moreover, in the manufacturing method of the electric wire with a terminal by 1st Embodiment, since the electric wire with a terminal can be produced using the continuous terminal produced by the manufacturing method of said continuous terminal, it is the same as the manufacturing method of the said continuous terminal. , Material cost can be reduced.

(Second Embodiment)
FIG. 5 is a top view showing the configuration of the terminal original plate according to the second embodiment of the present invention. Next, with reference to FIG. 5, the structure of the terminal original plate by 2nd Embodiment of this invention is demonstrated.

  In the terminal original plate according to the second embodiment, unlike the terminal original plate according to the first embodiment, the length along the arrangement direction of the terminal expansion portions 31 in the regions other than the electrical connection portion expansion portions 2 in each terminal expansion portion 31 is different. The length of the electrical connection part deployment part 2 along the arrangement direction is smaller. And the area | regions other than the electrical connection part expansion | deployment part 2 of the adjacent terminal expansion | deployment part 31 are mutually connected via the connection part 40 between terminals provided among them.

  Specifically, in the terminal original plate according to the second embodiment, as in the first embodiment, a plurality of terminal expansion portions 31 are integrally provided. It has the developed shape of the terminal 51 which comprises a terminal. And each terminal expansion | deployment part 31 contains the electrical connection part expansion | deployment part 2, and wire barrel expansion | deployment part 33 (core wire crimping | crimped part expansion | deployment part) and insulation barrel expansion | deployment as areas other than the electrical connection part expansion | deployment part 2 A portion 34 (covered crimping portion developing portion) and a connecting portion 35 are included.

  Similarly to the first embodiment, the electrical connecting portion developing portion 2 is a portion having a developed shape of the electrical connecting portion 12, and the wire barrel developing portion 33 is a portion having a developed shape of a wire barrel (core wire crimping portion) described later. The insulation barrel developing portion 34 is a portion having a developed shape of an insulation barrel 54 (coating crimping portion) described later. Further, the wire barrel developing part 33 has the same function as the wire barrel developing part 3 according to the first embodiment, and the insulation barrel developing part 34 is the same as the insulation barrel developing part 4 according to the first embodiment. It has the function of The wire barrel deployment part 33 is formed with three projections 33a similar to the projections 3a of the wire barrel deployment part 3 according to the first embodiment. The connecting portion 35 is a portion that is provided between the wire barrel developing portion 33 and the insulation barrel expanding portion 34 and connects them together.

  And the length along the arrangement direction of the terminal expansion part 31 of the wire barrel expansion part 33, the insulation barrel expansion part 34, and the connection part 35 is smaller than the length of the electrical connection part expansion part 2 along the arrangement direction. It has become. In addition, the insulation barrel development part 34 has a length along the arrangement direction of the terminal development part 1 smaller than that of the insulation barrel development part 4 according to the first embodiment, and is adjacent to the arrangement direction. A predetermined interval is provided between the expansion barrel developing portions 34. That is, in the second embodiment, unlike the first embodiment, adjacent insulation barrel developing portions 34 do not overlap in the longitudinal direction and are not directly connected.

  In addition, the electrical connection portion deployment portion 2, the wire barrel deployment portion 33, the connecting portion 35, and the insulation barrel deployment portion 34 are arranged in this order in the axial direction of the terminal deployment portion 31. In the terminal original plate according to the second embodiment, as described above, the adjacent terminal development portions 31 are connected to each other via the inter-terminal connection portion 40 provided therebetween. The inter-terminal connecting portion 40 is configured by an inter-wire barrel connecting portion 41 that is provided between the adjacent wire barrel expanding portions 33 and connects the adjacent wire barrel expanding portions 33 to each other. In other words, in the second embodiment, the adjacent terminal development portions 31 are connected to each other by the wire barrel development portion 33 by the wire barrel connection portion 41. Thereby, in the terminal original plate by 2nd Embodiment, the adjacent terminal expansion | deployment parts 31 are connected in the area | region between those axial ends.

  Further, the wire barrel connecting portion 41 is formed such that the widthwise dimension thereof is the same as the widthwise dimension of the wire barrel developing portion 33, and a through hole 41 a is provided at the center thereof. . Other configurations of the terminal original plate according to the second embodiment are the same as those of the terminal original plate according to the first embodiment.

  As described above, in the terminal original plate according to the second embodiment, adjacent terminal development portions 31 are connected by the wire barrel connecting portion 41 (interterminal connecting portion 40) in the region between both ends in the axial direction. Therefore, it is possible to obtain the same effect as the terminal original plate according to the first embodiment that the material cost can be reduced.

  Moreover, in the terminal original plate by 2nd Embodiment, the length along the arrangement direction of the terminal expansion | deployment part 31 of area | regions other than the electrical connection part expansion | deployment part 2 in each terminal expansion | deployment part 31 is the electric connection part along the arrangement direction. Since it is smaller than the length of the expanded portion 2, there is an unnecessary region that does not constitute the terminal 51 between the regions other than the electrical connection portion expanded portion 2 of the adjacent terminal expanded portion 31. In the terminal original plate, the inter-terminal connecting portion 40 (wire-barrel connecting portion 41) is provided in this unnecessary region, and the adjacent terminal development portions 31 are connected to the inter-terminal connecting portion 40 (between the wire barrels). They are connected to each other via a connecting part 41). Thereby, a plurality of terminals formed from the plurality of terminal expansion portions 31 by the inter-terminal connection portion 40 formed by using a portion between the regions other than the electrical connection portion expansion portion 2 that is discarded as an unnecessary portion originally. Since 51 can be connected mutually, it can suppress that material cost increases in order to connect those terminals 51. FIG.

  Further, in the terminal original plate according to the second embodiment, the electrical connection part development part 2, the wire barrel development part 33, and the insulation barrel development part 34 are arranged in this order in the axial direction of the terminal development part 31 and adjacent to each other. The inter-terminal connecting portion 40 that connects the matching terminal developing portions 31 includes an inter-barrel connecting portion 41 that connects adjacent wire barrel developing portions 33. For this reason, the electric connection part expansion | deployment part 2 and the insulation barrel expansion | deployment part 34 are each arrange | positioned on both sides of the axial direction of the terminal expansion | deployment part 31 on both sides of each wire barrel expansion | deployment part 33 connected via the connection part 41 between wire barrels. Can be constructed. Thereby, it is possible to balance the distortion generated when bending the electrical connection part 12 from the electrical connection part developing part 2 and the distortion generated when bending the insulation barrel 54 from the insulation barrel development part 34. . For this reason, it can suppress that curvature and meandering arise in the continuous terminal produced from the terminal original board due to the distortion which arises by these bending processes.

  FIG. 6 is a top view showing the configuration of the continuous terminal according to the second embodiment. Next, with reference to FIG. 6, the structure of the continuous terminal by 2nd Embodiment is demonstrated.

  The continuous terminal according to the second embodiment is formed by bending each part of the terminal original plate (see FIG. 5) according to the second embodiment. The continuous terminal integrally has a large number of terminals 51 arranged in a predetermined direction. Similar to the terminal 11 according to the first embodiment, these terminals 51 are coupled with the terminals of the mating connector to establish an electrical connection. In addition, each terminal 51 integrally includes an electrical connecting portion 12, a wire barrel developing portion 33, an insulation barrel 54, and a connecting portion 55. In each terminal 51, the electrical connecting portion 12, the wire barrel developing portion 33, the connecting portion 55, and the insulation barrel 54 are arranged in this order in the axial direction of each terminal 51.

  The electrical connection part 12 has the same configuration as the electrical connection part 12 according to the first embodiment. And in the continuous terminal by this 2nd Embodiment, the wire barrel expansion | deployment parts 33 of the adjacent terminal 51 are mutually connected via the connection part 41 between wire barrels with the form similar to the terminal original plate by the said 2nd Embodiment. ing. That is, when the terminal 51 is bent from each terminal development part 31 of the terminal original plate, the shape of the wire barrel development part 33 and the wire barrel connection part 41 is maintained without being processed. . With such a configuration, in the continuous terminal according to the second embodiment, the adjacent terminals 51 are connected to each other via the inter-wire barrel connecting portion 41 in a region between both ends in the axial direction.

  Further, a wire barrel (not shown) having the same structure as the wire barrel 13 of the terminal 11 according to the first embodiment shown in FIG. At this time, the connecting portion between the wire barrel expanding portion 33 and the wire barrel connecting portion 41 is cut, and the wire barrel expanding portion 33 is bent to open the wire barrel having a U-shaped cross section that opens upward (see FIG. Not shown).

  Further, the through hole 41a provided in the central portion of each wire barrel connecting portion 41 has the same function as the through hole 4a (see FIG. 2) of the continuous terminal according to the first embodiment. The feed mechanism is configured to hook the portion of the through hole 41a and pull the continuous terminal to supply each terminal 51 in turn to the crimping portion of the crimping machine.

  The insulation barrel 54 is a portion to be crimped to the insulating coating portion 22 of the covered electric wire 20 as shown in FIG. 3, and is the same as the insulation barrel formed from the insulation barrel developing portion 4 according to the first embodiment. It has the function of. The insulation barrel 54 is formed in a U-shaped cross section that opens upward by bending both longitudinal ends of the insulation barrel developed portion 34 of the terminal original plate according to the second embodiment. Moreover, the connection part 55 is a part which connects the wire barrel expansion | deployment part 33 and the insulation barrel 54, and is formed from the connection part 35 of the terminal original plate by the said 2nd Embodiment.

  As described above, in the continuous terminal according to the second embodiment, the adjacent terminal development portions 31 are connected to each other via the inter-terminal connection portion 40 (inter-wire barrel connection portion 41) in the region between both axial ends. Since it can manufacture using the terminal original plate connected mutually, material cost can be reduced like the terminal original plate by the said 2nd Embodiment.

  Further, in the continuous terminal according to the second embodiment, the electrical connecting portion 12 and the insulation barrel 54 are provided on both sides in the axial direction of the terminal 51 with the wire barrel developing portions 33 connected to each other by the wire barrel connecting portion 41. Since the structures arranged respectively can be configured, it is possible to balance the distortion generated when the electrical connection portion 12 is bent and the distortion generated when the insulation barrel 54 is bent. It is possible to suppress warping or meandering of the terminals.

  Next, the manufacturing method of the continuous terminal by this 2nd Embodiment and the manufacturing method of the electric wire with a terminal are demonstrated.

  In the manufacturing method of the continuous terminal according to the second embodiment, the continuous terminal is manufactured using the same manufacturing line as the manufacturing line according to the first embodiment shown in FIG. However, in the second embodiment, the terminal original plate according to the second embodiment shown in FIG. 5 is punched from the metal thin plate 100 in the punching portion 201 of the production line.

  Then, the electrical connection portion 12 is formed by bending the electrical connection portion deployment portion 2 of the terminal deployment portion 31 in the terminal molding portion 202, and the cross section U is formed by bending the insulation barrel deployment portion 34. A character-shaped insulation barrel 54 is formed. At this time, the wire barrel expanding portion 33 and the wire barrel connecting portion 41 are not processed, and are held in the shape of the wire barrel expanding portion 33 and the wire barrel connecting portion 41 in the original terminal original plate. In this way, a continuous terminal in which adjacent terminals 51 are connected to each other by the wire barrel connecting portion 41 is produced.

  And the electric wire with a terminal (wire harness) is produced using the continuous terminal produced in this way. The manufacturing process of the electric wire with terminal in the second embodiment is basically the same as the manufacturing process of the electric wire with terminal according to the first embodiment. However, in the manufacturing process of the electric wire with a terminal according to the second embodiment, the wire barrel is cut after the connecting portion between the wire barrel developing portion 33 and the wire barrel connecting portion 41 of each terminal 51 is cut in the crimping portion of the crimping machine. By bending the developed portion 33, a wire barrel (not shown) having a U-shaped cross section is formed.

  After that, as in the first embodiment, the wire barrel is pressure-bonded to the core wire portion 21 (see FIG. 3) of the covered electric wire 20, and the insulation covering portion 22 (see FIG. 3) of the covered electric wire 20 is insulated. By crimping the barrel 54, the electric wire with a terminal according to the second embodiment is manufactured.

  As described above, in the continuous terminal manufacturing method according to the second embodiment, the adjacent terminals 51 are connected to each other via the inter-wire barrel connecting portion 41 in the region between both ends in the axial direction. Therefore, the material cost can be reduced as in the case of the continuous terminal according to the second embodiment.

  Moreover, in the manufacturing method of the continuous terminal by 2nd Embodiment, the electric connection part 12 and the insulation barrel 54 are provided in the axial direction both sides of the terminal 51 across each wire barrel 33 connected via the connection part 41 between wire barrels. Since the continuous terminal by the said 2nd Embodiment by which each is arrange | positioned can be produced, it can suppress that a curvature and meandering arise in the continuous terminal.

  Moreover, in the manufacturing method of the electric wire with a terminal by 2nd Embodiment, since the electric wire with a terminal can be produced using the continuous terminal produced by the manufacturing method of the continuous terminal by the said 2nd Embodiment, the said 2nd implementation. The material cost can be reduced similarly to the manufacturing method of the continuous terminal according to the form.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is shown not by the above description of the embodiments but by the scope of claims for patent, and further includes meanings equivalent to the scope of claims for patent and all modifications within the scope.

  For example, not only in the configuration of the first embodiment and the second embodiment, in the terminal original plate, adjacent terminal development portions may be connected to each other at an arbitrary position in the region between both ends in the axial direction. In the case of continuous terminals, adjacent terminals may be connected to each other at an arbitrary position in a region between both ends in the axial direction.

  Moreover, in the said 1st Embodiment, it is electrically connected as the whole edge on the opposite side to one electrical connection part expansion | deployment part 2 goes to a front end side among the parts extended in the mutual direction of the adjacent insulation barrel expansion | deployment part 4. FIG. It forms in the shape of a slanting line that approaches the side expansion part 2 side, and the whole edge on the other electric connection part expansion part 2 side is formed in the shape of a slanting line that moves away from the electric connection part expansion part 2 as it goes to the tip side. The hatched edges of the portions extending in the mutual direction of the insulation barrel developing portion 4 are configured to be coupled to each other in the region in the vicinity of the tip portion overlapping in the longitudinal direction, but the present invention is not limited thereto. Instead, the insulation barrel developing portions adjacent to each other may be directly connected to each other by a configuration other than the above.

  For example, as in the first modification of the first embodiment shown in FIG. 7, adjacent insulation barrel development portions 64 may be directly connected to each other in the longitudinal edge. This configuration is applied in the case where the distance between the centers of adjacent terminal expansion portions 1 in the arrangement direction of the terminal expansion portions 1 is equal to the length in the longitudinal direction of the insulation barrel expansion portion 64.

  Further, as in the second modification of the first embodiment shown in FIG. 8, only the edge of the region in the vicinity of the portion coupled to each other among the portions extending in the mutual direction of the adjacent insulation barrel developing portions 65. May be formed in the same oblique line shape as in the first embodiment, and the portions other than the region of the insulation barrel developing portion 65 may have a uniform width along the longitudinal direction.

  Further, as in the third modification of the first embodiment shown in FIG. 9, the insulation barrel development parts 66 of the terminal development parts 1 are configured to be continuous with substantially the same width and adjacent insulations. You may comprise so that the connection part between the barrel expansion | deployment parts 66 may be cut | disconnected by a predetermined shape. In the third modified example shown in FIG. 9, the connecting portion between the adjacent insulation barrel developing portions 66 is configured to be cut by a crank-shaped cutting line 66a. You may make it cut | disconnect the connection part between the insulation barrel expansion | deployment parts 66 adjacent by the cutting line of.

  Moreover, in the said 2nd Embodiment, although it comprised so that the wire barrel expansion | deployment part 33 of the adjacent terminal expansion | deployment part 31 (terminal 51) might mutually be connected via the connection part 41 between wire barrels, this invention is based on this. Not limited to the above, adjacent terminal development portions (terminals) may be connected to each other via an inter-terminal connection portion.

  For example, like the 1st modification of 2nd Embodiment shown in FIG. 10, the connection parts 35 of the adjacent terminal expansion | deployment part 31 mutually connect via the connection part connection part 71 (inter-terminal connection part). You may do it. In this case, it is preferable to provide a through hole 71a having a function similar to that of the through hole 41a according to the second embodiment in the center of the connecting part 71 between connecting parts.

  Further, as in the second modification of the second embodiment shown in FIG. 11, the insulation barrel development parts 34 of the adjacent terminal development parts 31 are connected via the insulation barrel connection part 72 (inter-terminal connection part). May be connected to each other. In this case, a through hole 34 a is provided at the center in the longitudinal direction of the insulation barrel developing portion 34. The through hole 34a has the same function as the through hole 41a according to the second embodiment and the through hole 4a according to the first embodiment.

  In addition, as in the third modification of the second embodiment shown in FIG. 12, the wire barrel development part 33, the insulation barrel development part 34, and the connection part 35 of the adjacent terminal development parts 31 are respectively wire wire barrel connection parts. 41, and the connection part 72 between the insulation barrels 72 and the connection part 71 between the connection parts may be connected to each other via the connection part 80 between terminals. That is, the adjacent wire barrel development portions 33 are connected to each other via the wire barrel connecting portion 41, and the adjacent insulation barrel development portions 34 are connected to each other via the insulation barrel connecting portion 72. Further, the connecting portions 35 adjacent to each other are connected to each other via a connecting portion 71 between connecting portions. If comprised in this way, compared with the case where the adjacent terminal expansion | deployment parts 31 are connected only in any one of the wire barrel expansion | deployment part 33, the insulation barrel expansion | deployment part 34, and the connection part 35, the adjacent terminal expansion | deployment parts 31 are connected. Since the area of the connecting portion can be increased, warping and meandering are less likely to occur when the terminals are bent from each terminal expansion portion 31 while the terminal original plate is fed in the arrangement direction of the terminal expansion portions 31. Thereby, the fall of the processing speed of the terminal resulting from generation | occurrence | production of curvature and meandering can be suppressed.

  Further, in addition to the configuration of the terminal original plate according to the second embodiment, each wire barrel developed continuously along the arrangement direction of the terminal developed portions 31 as in the fourth modification of the second embodiment shown in FIG. A protrusion 83a may be provided across the wire barrel development part 33 and the wire barrel connecting part 81 so as to extend in the direction in which the part 33 and each wire barrel connecting part 81 are continuous. Three protrusions 83a are provided at a predetermined interval in a direction orthogonal to the direction in which the wire barrel expanding portion 33 and the wire barrel connecting portion 81 are continuous. And this protrusion 83a, after the connection part of the wire barrel expansion | deployment part 33 and the connection part 81 between wire barrels is cut | disconnected and the wire barrel is bent from the wire barrel expansion | deployment part 33 to the cross-section U-shape, It becomes a projection part which is arrange | positioned at the inner surface of a wire barrel and has the function similar to the projection part 13a (refer FIG. 3) in the terminal 11 by the said 1st Embodiment. That is, when the wire barrel is pressure-bonded to the core wire portion of the covered electric wire by this protrusion, the core wire portion is difficult to come out of the wire barrel, and the contact area between the core wire portion and the wire barrel is increased so that the electrical The connection is secure.

  In the configuration of the fourth modified example, the insulation barrel expanding portions 34 of the adjacent terminal expanding portions 31 are also connected to each other via the connection portion 72 between the insulation barrels. The inter-wire barrel coupling portion 81 constitutes an inter-terminal coupling portion 82 that couples the adjacent terminal development portions 31 to each other. However, the present invention is not limited to this configuration, and the adjacent terminal developing portions 31 may be connected only in the wire barrel expanding portion 33 and the wire barrel connecting portion 81 provided with the above-described protrusion 83a. The part 72 may not be provided. A through hole 81a similar to the through hole 41a according to the second embodiment is provided at the center of each wire barrel connecting portion 81.

  As described above, the protrusions 83a are provided across the continuous wire barrel developing portions 33 and the wire barrel connecting portions 81, whereby the strengths of the continuous wire barrel expanding portions 33 and the wire barrel connecting portions 81 are provided. Therefore, it is possible to prevent warping and meandering from occurring when the terminals are bent from the terminal expansion portions 31 while the terminal original plate is fed in the arrangement direction of the terminal expansion portions 31. Thereby, the fall of the processing speed of the terminal resulting from generation | occurrence | production of curvature and meandering can be suppressed.

  In the first and second embodiments and the modifications of both the embodiments, the case where only one row of terminal original plates is punched from a single metal original plate 100 has been described as an example. Not exclusively. That is, you may make it punch a pair of terminal original plate from the single metal original plate 100 like the 4th modification of the said 1st Embodiment shown in FIG.

  Specifically, in the fourth modification, in the step of punching out the terminal original plate, a pair extends in parallel with each other along the longitudinal direction of the metal original plate 100 from the single metal original plate 100 and is symmetric with each other. Punch out the terminal blank. That is, the insulation barrel expansion portions 65 of each terminal original plate are positioned at both ends of the metal original plate 100 in the width direction, and the electrical connection portion expansion portions 2 of both terminal original plates are positioned at the center portion side of the metal original plate 100 in the width direction. Both terminal blanks are punched in such a form. At this time, a part of the terminal expansion part 1 of the other terminal original plate is located in a region between the adjacent terminal expansion parts 1 of one terminal original plate, and the terminal expansion parts 1 of the pair of terminal original plates Both terminal original plates are punched from the metal original plate 100 so as to overlap each other in their axial directions.

  More specifically, at the distal end of the electrical connection portion deployment portion 2 of the terminal deployment portion 1, when the electrical connection portion 12 is formed from the electrical connection portion deployment portion 2, it is folded back to the other terminal. A contact piece expanding portion 2 a serving as a contact piece for obtaining the conduction is provided so as to extend in the axial direction of the terminal expanding portion 1. And in this 4th modification, when punching a pair of terminal original plates from the metal original plate 100, it is the terminal of the other terminal original plate in the area | region between the contact piece expansion | deployment parts 2a of the adjacent terminal expansion | deployment part 1 of one terminal original plate. Both terminal original plates are made of metal original plate 100 in a form in which contact piece development portions 2a of development part 1 are located and contact piece development parts 2a of both terminal original plates overlap with each other in the axial direction of terminal development part 1. Punch out from. Thereafter, using the punched both terminal blanks, the electric connecting portion developing portion 2 of the terminal expanding portion 1 is bent to form the electric connecting portion 12, and the wire barrel expanding portion 3 is bent to form the wire barrel 13. To form two rows of continuous terminals. The process for processing this continuous terminal is the same as in the first embodiment.

  In the fourth modified example of the first embodiment, the pair of terminal original plates are configured so that the terminal deployment portions 1 do not interfere with each other and the terminal deployment portions 1 overlap each other in the axial direction. Punched from one metal plate 100. By the way, in the case of punching only one row of terminal original plates from a single metal original plate as in the prior art, in order to manufacture two rows of terminal original plates, two metals having a width in the axial direction dimension of the terminal expansion portion are used. An original plate is required. On the other hand, in this 4th modification, since the terminal expansion | deployment parts 1 of two rows are stamped out from the single terminal original sheet | seat 100 in the form which mutual mutual terminal expansion | deployment parts 1 overlap in an axial direction, A single metal original plate 100 having a width smaller than the dimension obtained by adding the dimensions in the axial direction can be used as the material. For this reason, material cost can be reduced.

  In addition to the configuration of the fourth modified example of the first embodiment, the terminal original plate according to the other modified example of the first embodiment, the terminal original plate according to the second embodiment and each modified example, Similarly, a pair of terminal original plates may be punched out from a single metal original plate 100. In each of these cases, it is possible to obtain the same effect as that of the fourth modification example of the first embodiment in which the material cost can be reduced.

It is the top view which showed the structure of the terminal original plate by 1st Embodiment of this invention. It is the top view which showed the structure of the continuous terminal by 1st Embodiment of this invention. It is the top view which showed the state which set the covered electric wire to the terminal which comprises the continuous terminal shown in FIG. It is the schematic which showed the structure of the manufacturing line used for the manufacturing method of the continuous terminal by 1st Embodiment of this invention. It is the top view which showed the structure of the terminal original plate by 2nd Embodiment of this invention. It is the top view which showed the structure of the continuous terminal by 2nd Embodiment of this invention. It is the top view which showed the structure of the terminal original plate by the 1st modification of 1st Embodiment of this invention. It is the top view which showed the structure of the terminal original plate by the 2nd modification of 1st Embodiment of this invention. It is the top view which showed the structure of the terminal original plate by the 3rd modification of 1st Embodiment of this invention. It is the top view which showed the structure of the terminal original plate by the 1st modification of 2nd Embodiment of this invention. It is the top view which showed the structure of the terminal original plate by the 2nd modification of 2nd Embodiment of this invention. It is the top view which showed the structure of the terminal original plate by the 3rd modification of 2nd Embodiment of this invention. It is the top view which showed the structure of the terminal original plate by the 4th modification of 2nd Embodiment of this invention. It is the top view which showed the structure of the terminal original plate by the 4th modification of 1st Embodiment of this invention. It is the top view which showed the structure of the continuous terminal by a conventional example. It is the top view which showed the structure of the terminal original plate for forming the conventional continuous terminal shown in FIG.

Explanation of symbols

1, 31 Terminal development part 2 Electrical connection part development part 4, 34, 64, 65, 66 Insulation barrel development part (crimp part development part, covering crimp part development part)
11 Terminal 12 Electrical connection 20 Coated wire (electric wire)
21 Core wire part 22 Insulation coating part 33 Wire barrel development part (crimp part development part, core wire crimp part development part)
35 connecting portions 40, 80, 82 connecting portions 41, 81 connecting portions between wire barrels (connecting portions between core wire crimping portions)
72 Insulation barrel connection (Coating crimp connection)
71 Connection part connection part 83a ridge 100 metal thin plate (metal plate)

Claims (17)

A terminal original plate integrally having a plurality of terminal expansion portions having a terminal expansion shape,
The terminal original plate, wherein the terminal expansion portions are arranged in a specific direction intersecting the axial direction, and the adjacent terminal expansion portions are connected to each other in a region between both ends in the axial direction. The plurality of terminal deployment portions have an electrical connection portion deployment portion having a deployment shape of an electrical connection portion electrically connected to a mating terminal, and a deployment shape of a crimping portion crimped to an electric wire and in the specific direction. Each having an extending crimping part extending part,
The terminal original plate according to claim 1, wherein the crimping part developing parts of the adjacent terminal developing parts are directly connected to each other. The length in the longitudinal direction of the crimping part development part is larger than the length of the region other than the crimping part development part of the terminal development part along the longitudinal direction,
The portions extending in the mutual direction of the crimping part developing parts of the adjacent terminal developing parts overlap with each other in the longitudinal direction, and are formed in a shape that does not overlap with each other in the width direction orthogonal to the longitudinal direction, The terminal original plate according to claim 2, which is connected to each other at an end portion in a width direction orthogonal to the longitudinal direction. A continuous terminal produced using the terminal original plate according to claim 2 or 3,
Integrally having a plurality of terminals arranged in the specific direction;
The plurality of terminals each have the electrical connection part formed by bending the electrical connection part development part of the terminal development part, and the crimping part development part,
A continuous terminal in which the crimped portions of adjacent terminals are directly connected to each other. A step of punching out the terminal original plate according to claim 2 or 3 from a single metal plate;
Forming a plurality of terminals having the electrical connection parts connected to each other at the crimping part development part by forming the electrical connection part by bending the electrical connection part development part of the terminal development part; and The manufacturing method of the continuous terminal provided with. It is a manufacturing method of the electric wire with a terminal using the continuous terminal produced by the manufacturing method of the continuous terminal according to claim 5,
A method for manufacturing a terminal-attached electric wire, comprising: cutting a joint portion between adjacent crimping portion development portions of the terminals, and forming a crimping portion from the crimping portion development portion and crimping the crimping portion to the electric wire. The plurality of terminal expanding portions include an electric connecting portion expanding portion having a developed shape of an electric connecting portion electrically connected to a counterpart terminal, and a crimping portion expanding portion having a developed shape of a crimping portion to be crimped to an electric wire. Each with
The length along the specific direction of the region other than the electrical connection part development part in each terminal development part is smaller than the length of the electrical connection part development part along the specific direction,
2. The terminal original plate according to claim 1, wherein regions of the adjacent terminal expanding portions other than the electric connection portion expanding portion are connected to each other via an inter-terminal connecting portion provided therebetween. In a region other than the electrical connecting portion developing portion, a core wire crimping portion developing portion having a developed shape of the core wire crimping portion crimped to the core wire portion of the electric wire, and a developed shape of the covering crimping portion crimped to the insulating coating portion of the electric wire And a connecting crimping part connecting the core crimping part developing part and the covering crimping part developing part.
The inter-terminal connecting portion includes a connecting portion between core crimping portions that connect adjacent core crimping portions developing portions, a connecting crimp-connecting portion connecting portions that connect adjacent covering crimping portions, and the adjacent connecting portions. The terminal original board of Claim 7 containing the connection part between connection parts which connects mutually. The area other than the electrical connection part development part includes a core wire crimping part development part having a developed shape of a core wire crimping part crimped to the core part of the electric wire,
The inter-terminal connecting portion includes an inter-core wire crimping portion connecting portion that connects the adjacent core wire crimping portions developing portions,
In each of the core wire crimping portion expanding portions and the connecting portions between the core wire crimping portions that are continuous along the specific direction, the core wire crimping portion expanding portion and the connecting portion between the core wire crimping portions are extended so as to extend in the continuous direction. The terminal original plate according to claim 7, wherein a protrusion is provided across the terminal strip. In a region other than the electrical connecting portion developing portion, a core wire crimping portion developing portion having a developed shape of the core wire crimping portion crimped to the core wire portion of the electric wire, and a developed shape of the covering crimping portion crimped to the insulating coating portion of the electric wire And a coated crimping part with a developed part,
The electrical connection part development part, the core crimping part development part and the covering crimping part development part are arranged in this order in the axial direction of the terminal development part,
The said terminal connection part is a terminal original plate of Claim 7 which consists of a connection part between core wire crimping parts which connects the said adjacent core wire crimping part expansion | deployment parts. It is the continuous terminal produced using the terminal original plate of any one of Claims 7-9,
Integrally having a plurality of terminals arranged in the specific direction;
The plurality of terminals each include the electrical connection portion formed by bending the electrical connection portion development portion of the terminal deployment portion, and a region other than the electrical connection portion,
A continuous terminal in which regions other than the electrical connection portion of the adjacent terminals are connected to each other via the inter-terminal connection portion. A continuous terminal manufactured using the terminal original plate according to claim 10,
Integrally having a plurality of terminals arranged in the specific direction;
The plurality of terminals include the electrical connection portion formed by bending the electrical connection portion deployment portion of the terminal deployment portion, and the coating formed by bending the coating crimp portion deployment portion. Each having a crimping part and the core crimping part development part,
The continuous terminal which the core wire crimping part expansion | deployment part of the said adjacent terminal is mutually connected via the said connection part between core wire crimping parts. A step of punching the terminal original plate according to any one of claims 7 to 9 from a single metal plate;
The electrical connection part interconnected in a region other than the electrical connection part via the inter-terminal connection part by forming the electrical connection part by bending the electrical connection part development part of the terminal development part. And a step of forming a plurality of terminals comprising: a continuous terminal manufacturing method. Stamping the terminal original plate according to claim 10 from a single metal plate;
Forming the electrical connection part by bending the electrical connection part development part of the terminal development part;
A step of forming the coated crimped portion by bending the coated crimped portion developing portion,
The manufacturing method of the continuous terminal which forms the several terminal which has the said electrical connection part and the said coating | compression-bonding part which were mutually connected by the said core wire crimping part expansion | deployment part via the said connection part between core wire crimping parts. A method for producing an electric wire with a terminal using a continuous terminal produced by the method for producing a continuous terminal according to claim 13 or 14,
The manufacturing method of the electric wire with a terminal provided with the process of crimping | bonding the crimping part formed from the said crimping | compression-bonding part expansion part to an electric wire, after cut | disconnecting the coupling | bond part of the said terminal and the said connection part between terminals. It is a manufacturing method of the terminal original board for manufacturing the terminal original board of any one of Claims 1-3 and 7-10,
Punching a pair of the terminal original plates extending in parallel with each other along the longitudinal direction of the metal original plate from a single metal original plate,
In the step of punching out the pair of terminal original plates, a predetermined portion of the terminal expansion portion of the other terminal original plate is located in a region between adjacent terminal expansion portions of one of the terminal original plates, A method for manufacturing a terminal original plate, wherein the pair of terminal original plates are punched out of the metal original plate in a form in which terminal unfolded portions of the pair of terminal original plates overlap with each other in the axial direction thereof. A step of punching the terminal original plate according to any one of claims 2, 3 and 7 to 10 from a single metal original plate,
Forming a plurality of terminals connected to each other in a region other than the electrical connection part by forming the electrical connection part by bending the electrical connection part development part of the terminal development part, and
The step of punching the terminal original plate includes a step of punching a pair of terminal original plates extending in parallel with each other along a longitudinal direction of the metal original plate from a single metal original plate,
In the step of punching out the pair of terminal original plates, a predetermined portion of the terminal expansion portion of the other terminal original plate is located in a region between adjacent terminal expansion portions of one of the terminal original plates, A manufacturing method of a continuous terminal, wherein the pair of terminal original plates are punched from the metal original plate in a form in which terminal development portions of the pair of terminal original plates overlap with each other in the axial direction thereof.

Images