Electric wire with terminals, and method for manufacturing electric wire with terminals

Abstract

To provide a wire with terminals that can accommodate multiple specifications while sharing terminals. [Solution] The wire with a terminal 1 comprises a terminal 20, a wire 10 connected to the terminal 20, and a cylindrical part 30 that covers the electrical contact between the terminal 20 and the wire 10. The terminal 20 has a rod-shaped contact portion 22. The wire 10 has a conductor core wire 11 that is electrically connected to the contact portion 22. The cylindrical part 30 is positioned so as to sandwich the conductor core wire 11 between the outer surface of the contact portion 22 and the inner surface of the cylindrical part 30, and the cylindrical part 30 presses the conductor core wire 11 against the outer surface of the contact portion 22, causing the contact portion 22 and the conductor core wire 11 to be crimped together. The terminal 20 has an engagement portion 25 with an uneven shape on the outer surface of the contact portion 22, and the conductor core wire 11 of the wire 10 is pressed by the cylindrical part 30 and engages with the engagement portion 25.

Description

Technical Field

[0001] The present invention relates to a wire with a terminal in which a terminal and a wire are electrically connected, and a method for manufacturing the wire with a terminal.

Background Art

[0002] Conventionally, a wire with a terminal has been proposed to be manufactured using a terminal having a connection portion connected to a mating terminal and a crimping portion that has a cylindrical shape (so-called closed barrel shape) that is continuous without a break in the circumferential direction and is crimped to the conductor core wire of the wire (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] <� In the wire with a terminal of the above-described type, generally, after inserting the conductor core wire of the wire into the cylinder of the crimping portion of the terminal, the crimping portion is crimped so as to be crushed toward the inside of the cylinder using a caulking die, and the terminal and the wire are electrically connected by crimping the crimping portion and the conductor core wire. Due to such a structure, in this type of wire with a terminal, the thickness of the crimping portion of the terminal and the inner diameter of the cylinder of the crimping portion are changed according to the thickness of the wire (in other words, the bundle diameter of the conductor core wires inserted into the cylinder of the crimping portion). That is, in the production of the wire with a terminal, a dedicated terminal corresponding to the required specifications such as the thickness of the wire is used. Therefore, the terminals cannot be shared, and it is difficult to reduce the production cost of the wire with a terminal.

[0005] One object of the present invention is to provide a wire with a terminal that can cope with a plurality of specifications while sharing terminals, and a method for manufacturing the wire with a terminal.

Means for Solving the Problems

[0006] To achieve the above-mentioned objectives, the wire with terminals and the method for manufacturing the wire with terminals according to the present invention are characterized by the following:

[0007] A wire with a terminal, comprising a terminal, a wire connected to the terminal, and a cylindrical component covering the electrical contact between the terminal and the wire, The terminal has a rod-shaped contact portion, The electric wire has a conductive core wire that is electrically connected to the contact portion. The aforementioned cylindrical part is The conductor core wire is positioned between the outer circumferential surface of the contact portion and the inner surface of the cylindrical component, and the cylindrical component presses the conductor core wire toward the outer circumferential surface of the contact portion, thereby crimping the contact portion and the conductor core wire together. It must be a wire with terminals.

[0008] A method for manufacturing a wire with a terminal, in which the terminal and the wire are electrically connected, The steps include: arranging the conductor core of the electric wire so as to cover the outer surface of the rod-shaped contact portion of the terminal; The steps include: preparing a cylindrical component having an inner diameter that allows the conductor core wire to be sandwiched between the outer surface of the contact portion and the inner surface of the cylinder; and arranging the cylindrical component so that the conductor core wire is sandwiched between the outer surface and the inner surface of the cylinder; The process includes a step of using a crimping tool that deforms the cylindrical part to reduce its diameter, to crimp the cylindrical part, the conductor core wire, and the contact portion together, thereby crimping the contact portion and the conductor core wire. The method must be a method for manufacturing wires with terminals. [Effects of the Invention]

[0009] According to the wire with terminals and the method for manufacturing wires with terminals of the present invention, the conductor core of the wire is sandwiched between the outer surface of the rod-shaped contact portion of the terminal and the inner surface of the cylindrical component, and the conductor core and the contact portion are crimped together by the cylindrical component pressing against the conductor core. In other words, in wires with terminals of this configuration, unlike conventional wires with terminals, the terminal and the wire are electrically connected without inserting the conductor core into the contact portion of the terminal. Therefore, even if the wire thickness or the bundle diameter of the conductor core differs for each required specification, a common terminal can be used. Furthermore, by using a cylindrical component having an inner diameter corresponding to the wire thickness, etc., wires with terminals can be manufactured. Generally, terminals manufactured to correspond to the structure of the mating terminal or connector housing have higher production costs than simple cylindrical components. Therefore, even if multiple types of cylindrical components with different inner diameters are used, the overall production cost can be reduced by sharing terminals. Thus, the wire with terminals and the method for manufacturing wires with terminals of the present invention can accommodate multiple specifications while sharing terminals.

[0010] The present invention has been briefly described above. Further details of the present invention will be clarified by referring to the accompanying drawings and reading through the embodiments for carrying out the invention described below. [Brief explanation of the drawing]

[0011] [Figure 1] Figure 1 is a perspective view showing a wire with terminals according to an embodiment of the present invention. [Figure 2] Figure 2 is a side view illustrating the first process for manufacturing the terminal-equipped wire shown in Figure 1. [Figure 3] Figure 3 is an enlarged view of section A in Figure 2. [Figure 4] Figure 4 is a side view illustrating the second process for manufacturing the terminal-equipped wire shown in Figure 1. [Figure 5] Figure 5 is a side view illustrating the third step in manufacturing the terminal-equipped wire shown in Figure 1. [Figure 6]FIG. 6 is a side view for explaining a fourth step of manufacturing the wire with a terminal shown in FIG. 1. [Figure 7] FIG. 7 is a cross-sectional view taken along line B-B of FIG. 6. [Figure 8] FIG. 8 is an enlarged view of part C in FIG. 7.

MODE FOR CARRYING OUT THE INVENTION

[0012] <Embodiment> Hereinafter, referring to the drawings, the wire with a terminal 1 according to the embodiment of the present invention shown in FIG. 1 and its manufacturing method will be described. As shown in FIGS. 1 and 2, the wire with a terminal 1 is composed of a wire 10, a male terminal 20, and a cylindrical part 30. The wire with a terminal 1 is manufactured by clamping a cylindrical part 30 arranged so as to sandwich the conductor core wire 11 of the wire 10 between the outer peripheral surface of the contact part 22 of the terminal 20 and the inner cylindrical surface of the cylindrical part 30 with a pair of molds 40 shown in FIG. 6 and crimping the contact part 22 to the conductor core wire 11. In this example, a male terminal 20 is used, but a female terminal 20 may also be used.

[0013] Hereinafter, for convenience of explanation, as shown in FIG. 1 and the like, the "front-back direction", the "up-down direction", and the "left-right direction" are defined. The "front-back direction", the "up-down direction", and the "left-right direction" are orthogonal to each other. The front-back direction coincides with the axial direction of the terminal 20. Also, the radial direction and the circumferential direction of the terminal 20 (contact part 22) are simply referred to as the "radial direction" and the "circumferential direction". Hereinafter, first, each component constituting the wire with a terminal 1 will be described in order.

[0014] First, the wire 10 will be described. As shown in FIG. 2, the wire 10 is composed of a metal rod-shaped (elongated cylindrical) conductor core wire 11 and a resin-made cylindrical insulating coating 12 covering the outer periphery of the conductor core wire 11. The conductor core wire 11 may be composed of a plurality of conductor fine wires bundled together, or may be composed of only one elongated cylindrical conductor. At the tip (front end) of the wire 10, the insulating coating 12 is removed by so-called terminal treatment, and a conductor core wire 11 of a predetermined length is exposed.

[0015] Next, the terminal 20 will be described. The metal terminal 20 is formed by performing casting, cutting, or the like. The hardness of the metal material constituting the terminal 20 is higher than the hardness of the metal material constituting the conductor core wire 11 of the electric wire 10. As shown in FIG. 2, the terminal 20 is a male terminal and includes a connection portion 21 located on the tip side (front end side) and a contact portion 22 located on the base end side (rear end side).

[0016] The connection portion 21 is a portion that is inserted into the base end side of a female counterpart terminal (not shown) and connected to the counterpart terminal. As shown in FIG. 2, it has a solid cylindrical shape extending in the front-rear direction. In order to facilitate the insertion of the connection portion 21 into the counterpart terminal, the tip portion (front end portion) of the connection portion 21 has a shape in which the diameter decreases as it approaches the tip (so-called tapered shape).

[0017] The contact portion 22 is a portion where the exposed conductor core wire 11 of the electric wire 10 is arranged to cover the outer peripheral surface of the contact portion 22 and is to be crimped to the conductor core wire 11. Before crimping, as shown in FIG. 2, it has a solid cylindrical shape extending in the front-rear direction. The outer diameter of the contact portion 22 is smaller than the outer diameter of the connection portion 21. In order to easily arrange the exposed conductor core wire 11 of the electric wire 10 to cover the outer peripheral surface of the contact portion 22, the base end portion (rear end portion) of the contact portion 22 has a shape in which the diameter decreases as it approaches the base end (so-called tapered shape). On the outer peripheral surface of the contact portion 22, as shown in FIG. 3, an engaging portion 25 having an uneven shape in which an annular concave portion 23 and an annular convex portion 24 are alternately arranged in the front-rear direction is formed.

[0018] At the boundary between the connection portion 21 and the contact portion 22 in the terminal 20, as shown in FIG. 2, a pair of front and rear flange portions 26, 27 that each spread radially outward over the entire circumferential direction are provided.

[0019] Next, the cylindrical component 30 will be described. The metal cylindrical component 30 is formed by casting, machining, or other processes. The hardness of the metal material constituting the cylindrical component 30 is higher than the hardness of the metal material constituting the conductor core wire 11 of the electric wire 10. The cylindrical component 30 has a cylindrical shape that extends in the front-to-back direction. The cylindrical component 30 has an inner diameter that allows the conductor core wire 11 of the electric wire 10, which is positioned to cover the outer surface of the contact portion 22 of the terminal 20, to be sandwiched between the inner diameter of the cylindrical component 30 and the outer surface of the contact portion 22. If the thickness of the conductor core wire 11 differs depending on the required specifications of the electric wire 10, a common terminal 20 (or its contact portion 22) is used, and a cylindrical component 30 having an inner diameter corresponding to the thickness of the conductor core wire 11 of the electric wire 10 is selected and used from among several types of cylindrical components 30 with different inner diameters. The components constituting the electric wire 1 with terminals have been described in order.

[0020] Next, the manufacturing method of the terminal-equipped wire 1 shown in Figure 1 will be described. To manufacture the terminal-equipped wire 1, first, as shown in Figure 2, a wire 10 with a conductor core wire 11 exposed at its tip, a terminal 20, and a cylindrical component 30 are prepared. As the cylindrical component 30, one is selected and prepared from among several types of cylindrical components 30 with different inner diameters, having an inner diameter that allows the conductor core wire 11 of the wire 10 to be sandwiched between the inner surface of the contact portion 22 of the terminal 20. The wire 10 is inserted through the cylindrical component 30, and the cylindrical component 30 is placed on the outer surface of the insulating coating 12 of the wire 10.

[0021] Next, as shown by the white arrows in Figure 4, the exposed conductor core wire 11 of the electric wire 10 is positioned on the outer surface of the contact portion 22 of the terminal 20 so as to cover the outer surface of the contact portion 22 of the terminal 20. It is preferable that the conductor core wire 11 is distributed over the entire circumferential area of ​​the outer surface of the contact portion 22 of the terminal 20. It is also preferable that the conductor core wire 11 is positioned on the outer surface of the contact portion 22 so as to cover the entire front-to-back area of ​​the engagement portion 25 formed on the outer surface of the contact portion 22.

[0022] Next, as shown by the white arrow in Figure 5, the cylindrical component 30, which was positioned on the outer surface of the insulating coating 12 of the electric wire 10, is moved relative to the electric wire 10 toward the tip side (front end side) and positioned to cover the conductor core wire 11 of the electric wire 10, which is positioned on the outer surface of the contact portion 22 of the terminal 20. As a result, the conductor core wire 11 of the electric wire 10 is sandwiched between the outer surface of the contact portion 22 of the terminal 20 and the inner surface of the cylindrical component 30.

[0023] Next, as shown in Figure 6, a pair of molds 40 are positioned so as to sandwich a cylindrical component 30 that covers the conductor core wire 11 of the electric wire 10. The pair of molds 40 are configured such that, in the clamped state, the entire clamping surface 41 has a hexagonal cross-sectional shape. Next, as shown by the white arrows in Figure 6, the pair of molds 40 are brought relatively closer together in the left-right direction, and the cylindrical component 30 is clamped between the pair of molds 40 in the left-right direction, so that the clamping surfaces 41 of the pair of molds 40 are pressed against the cylindrical component 30. As a result, the cylindrical component 30, the conductor core wire 11 and the contact portion 22 are clamped together, and the cylindrical component 30 presses the conductor core wire 11 toward the outer surface of the contact portion 22, so that the contact portion 22 of the terminal 20 is crimped to the conductor core wire 11 of the electric wire 10 (see also Figure 7).

[0024] Here, the cylindrical component 30 is made of metal and therefore possesses sufficient strength and ductility for crimping. Furthermore, the contact portion 22 of the terminal 20 has a solid columnar shape. For this reason, when crimping, the contact portion 22 is less likely to deform radially inward compared to when the contact portion 22 is hollow, so the conductor core wire 11 can be pressed firmly against the cylindrical component 30. Furthermore, when the conductor core wire 11 is pressed against the outer circumferential surface of the contact portion 22, the conductor core wire 11 is also pressed against the engaging portion 25 formed on the outer circumferential surface of the contact portion 22. As a result, as shown in Figure 8, the conductor core wire 11 plastically deforms to fill the uneven shape consisting of the recess 23 and protrusion 24 of the engaging portion 25, thereby increasing the contact area between the contact portion 22 and the conductor core wire 11. Furthermore, the contact pressure between the contact portion 22 and the conductor core wire 11 increases, especially at the corners of the protruding ends of the protrusions 24. Here, the plastic deformation of the conductor core wire 11 is due to the fact that the hardness of the metal material constituting the conductor core wire 11 is lower than the hardness of the metal material constituting the cylindrical part 30 and the metal material constituting the terminal 20. Although the uneven shape of the engagement portion 25 may deform slightly as the cylindrical part 30 is crimped, the engagement portion 25 will not deform to the extent that the distinction between the recess 23 and the protrusion 24 disappears. Thus, as shown in Figure 1, a terminal-equipped electric wire 1 is manufactured in which a crimping portion 31 having a hexagonal outer circumference is formed on a part of the cylindrical part 30 in the front-rear direction.

[0025] <Effects and Actions> As described above, according to the terminal-equipped wire 1 and its manufacturing method according to this embodiment, the conductor core wire 11 of the wire 10 is sandwiched between the outer surface of the rod-shaped contact portion 22 of the terminal 20 and the inner surface of the cylindrical component 30, and the conductor core wire 11 and the contact portion 22 are crimped together by the cylindrical component 30 pressing against the conductor core wire 11. In other words, in the terminal-equipped wire 1 according to this embodiment, unlike conventional terminal-equipped wires, the terminal 20 and the wire 10 are electrically connected without providing a hollow cylindrical structure in the contact portion 22 of the terminal. Therefore, even if the thickness of the wire 10 differs for each required specification, the terminal-equipped wire 1 can be manufactured by using a common terminal 20 and a cylindrical component 30 having an inner diameter corresponding to the thickness of the wire 10. Generally, terminals 20 manufactured to correspond to the structure of the mating terminal or connector housing have higher production costs than simple cylindrical components 30. Therefore, even if multiple types of cylindrical parts 30 with different inner diameters are used, the overall production cost can be reduced by sharing the terminal 20. Thus, the wire with terminal 1 according to this embodiment can accommodate multiple specifications while sharing the terminal 20.

[0026] Furthermore, according to the terminal-equipped wire 1 of this embodiment, an engagement portion 25 having an uneven shape is provided on the outer circumferential surface of the contact portion 22 of the terminal 20, and the conductor core wire 11 is pressed against and engaged with the engagement portion 25. As a result, the contact area between the contact portion 22 and the conductor core wire 11 is increased, thereby improving the reliability of the electrical connection between the terminal 20 and the wire 10.

[0027] Furthermore, according to the terminal-equipped wire 1 of this embodiment, the cylindrical component 30 is made of metal. This ensures that the cylindrical component 30 has sufficient strength and ductility when, for example, the cylindrical component 30 is crimped to fasten the conductor core wire 11 to the contact portion 22 of the terminal 20.

[0028] Furthermore, according to the wire with terminal 1 of this embodiment, the contact portion 22 of the terminal 20 has a solid columnar shape. As a result, for example, when crimping the cylindrical component 30 to press the conductor core wire 11 to the contact portion 22 of the terminal 20, the contact portion 22 is less likely to deform radially inward compared to when the contact portion 22 is hollow, so the conductor core wire 11 is pressed firmly against the cylindrical component 30. Therefore, the reliability of the electrical connection between the terminal 20 and the wire 10 can be improved.

[0029] <Other forms> It should be noted that the present invention is not limited to the embodiments described above, and various modifications can be adopted within the scope of the present invention. For example, the present invention is not limited to the embodiments described above, and can be modified, improved, etc. as appropriate. Furthermore, the material, shape, dimensions, number, placement, etc. of each component in the embodiments described above are arbitrary and not limited as long as they can achieve the present invention.

[0030] Herein, the features of the embodiments of the terminal-equipped wire 1 and the method for manufacturing the terminal-equipped wire 1 according to the present invention described above are briefly summarized and listed below in [1] to [5].

[0031] [1] A terminal-equipped wire (1) comprising a terminal (20), a wire (10) connected to the terminal (20), and a cylindrical component (30) covering the electrical contact between the terminal (20) and the wire (10), The terminal (20) has a rod-shaped contact portion (22), The electric wire (10) has a conductor core wire (11) that is electrically connected to the contact portion (22), The cylindrical part (30) is The conductor core wire (11) is positioned between the outer surface of the contact portion (22) and the inner surface of the cylindrical component (30), and the cylindrical component (30) presses the conductor core wire (11) toward the outer surface of the contact portion (22), thereby crimping the contact portion (22) and the conductor core wire (11) together. Electrical wire with terminals (1).

[0032] In the terminal-equipped wire described in [1] above, the conductor core of the wire is sandwiched between the outer surface of the rod-shaped contact portion of the terminal and the inner surface of the cylindrical component, and the conductor core and contact portion are crimped together by the cylindrical component pressing against the conductor core. In other words, unlike conventional terminal-equipped wires, in this configuration, the terminal and the wire are electrically connected without inserting the conductor core into the contact portion of the terminal. Therefore, even if the wire thickness or the bundle diameter of the conductor core differs for each required specification, a common terminal can be used. Furthermore, by using a cylindrical component with an inner diameter corresponding to the wire thickness, etc., terminal-equipped wires can be manufactured. Generally, terminals manufactured to correspond to the structure of the mating terminal or connector housing are more expensive to produce than simple cylindrical components. Therefore, even if multiple types of cylindrical components with different inner diameters are used, the overall production cost can be reduced by sharing terminals. Thus, this configuration of terminal-equipped wire can accommodate multiple specifications while sharing terminals.

[0033] [2] In the terminal-equipped wire (1) described in [1] above, The aforementioned terminal (20) is The outer circumferential surface of the contact portion (22) has an engagement portion (25) having an uneven shape, The conductor core wire (11) of the electric wire (10) is The cylindrical part (30) is pressed against the engaging portion (25), Electrical wire with terminals (1).

[0034] According to the wire with terminals described in [2] above, an engaging portion having an uneven shape is provided on the outer surface of the contact portion of the terminal, and the conductor core wire is pressed against and engaged with this engaging portion. This increases the contact area between the contact portion and the conductor core wire, and in particular increases the contact pressure between the contact portion and the conductor core wire at the corners of the protruding ends of the convex portion of the engaging portion. Therefore, the reliability of the electrical connection between the terminal and the wire can be improved.

[0035] [3] In the terminal-equipped wire (1) described in [1] above, The cylindrical part (30) is made of a metal material. Electrical wire with terminals (1).

[0036] In the terminal-equipped wire described in [3] above, the cylindrical component is made of metal. This ensures that the cylindrical component has sufficient strength and ductility when, for example, the cylindrical component is crimped to fasten the conductor core wire to the contact point of the terminal.

[0037] [4] In the terminal-equipped wire (1) described in [1] above, The contact portion (22) of the terminal (20) has a solid columnar shape. Electrical wire with terminals (1).

[0038] According to the terminal-equipped wire described in [4] above, the contact portion of the terminal has a solid columnar shape. As a result, for example, when crimping a cylindrical component to press the conductor core wire against the terminal's contact portion, the contact portion is less likely to deform radially inward compared to when the contact portion is hollow, so the conductor core wire is pressed firmly against the cylindrical component. Therefore, the reliability of the electrical connection between the terminal and the wire can be improved.

[0039] [5] A method for manufacturing a terminal-equipped wire (1) in which a terminal (20) and a wire (10) are electrically connected, The steps include: positioning the conductor core wire (11) of the electric wire (10) so as to cover the outer surface of the rod-shaped contact portion (22) of the terminal (20), The steps include: preparing a cylindrical component (30) having an inner diameter that allows the conductor core wire (11) to be sandwiched between the outer surface of the contact portion (22), and arranging the cylindrical component (30) so as to sandwich the conductor core wire (11) between the outer surface and the inner surface of the cylinder; The process includes a step of using a crimping tool (40) to deform the cylindrical part (30) so as to reduce its diameter, thereby integrally crimping the cylindrical part (30), the conductor core wire (11), and the contact portion (22) to crimp the contact portion (22) and the conductor core wire (11). A method for manufacturing an electric wire with terminals (1).

[0040] According to the method for manufacturing wires with terminals described in [5] above, the conductor core of the wire is sandwiched between the outer surface of the rod-shaped contact portion of the terminal and the inner surface of the cylindrical component, and the conductor core and the contact portion are crimped together by the cylindrical component pressing against the conductor core. In other words, in this method for manufacturing wires with terminals, unlike conventional methods, the terminal and the wire are electrically connected without inserting the conductor core into the contact portion of the terminal. Therefore, even if the wire thickness or the bundle diameter of the conductor core differs for each required specification, a common terminal can be used. Furthermore, by using a cylindrical component with an inner diameter corresponding to the wire thickness, etc., wires with terminals can be manufactured. Generally, terminals manufactured to correspond to the structure of the mating terminal or connector housing have higher production costs than simple cylindrical components. Therefore, even if multiple types of cylindrical components with different inner diameters are used, the overall production cost can be reduced by sharing terminals. Thus, this method for manufacturing wires with terminals can accommodate multiple specifications while sharing terminals. [Explanation of symbols]

[0041] 1. Wire with terminals 10 Electric wire 11 Conductor core wire 20 terminals 22 Contact point 25 Engaging part 30 cylindrical parts 40. Mold (crimping device)

Claims

1. A wire with a terminal, comprising a terminal, a wire connected to the terminal, and a cylindrical component covering the electrical contact between the terminal and the wire, The terminal has a rod-shaped contact portion, The electric wire has a conductive core wire that is electrically connected to the contact portion. The aforementioned cylindrical part is The conductor core wire is positioned between the outer circumferential surface of the contact portion and the inner surface of the cylindrical component, and the cylindrical component presses the conductor core wire toward the outer circumferential surface of the contact portion, thereby crimping the contact portion and the conductor core wire together. Electrical wire with terminals.

2. In the wire with terminals described in claim 1, The aforementioned terminal is, The outer circumferential surface of the contact portion has an engaging portion having an uneven shape, The conductor core wire of the aforementioned electric wire is The cylindrical part is pressed against the engagement portion, Electrical wire with terminals.

3. In the wire with terminals described in claim 1, The cylindrical part is made of a metal material. Electrical wire with terminals.

4. In the wire with terminals described in claim 1, The contact portion of the terminal has a solid columnar shape. Electrical wire with terminals.

5. A method for manufacturing a wire with a terminal, in which the terminal and the wire are electrically connected, The steps include: arranging the conductor core wire of the electric wire so as to cover the outer surface of the rod-shaped contact portion of the terminal; The steps include: preparing a cylindrical component having an inner diameter that allows the conductor core wire to be sandwiched between the outer surface of the contact portion and the inner surface of the cylinder; and arranging the cylindrical component so that the conductor core wire is sandwiched between the outer surface and the inner surface of the cylinder; The process includes a step of using a crimping tool that deforms the cylindrical part to reduce its diameter, to crimp the cylindrical part, the conductor core wire, and the contact portion together, thereby crimping the contact portion and the conductor core wire. A method for manufacturing wires with terminals.

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