JP2009252449A - Terminal fitting, wire harness, and wire harness manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a terminal fitting reducing the contact resistance between the fitting and a wire, a wire harness, and a wire harness manufacturing method. <P>SOLUTION: The female terminal fitting 12 comprises a wire barrel 16 made of a metallic sheet material and externally caulked to the end of a wire 11 and a joint 17 provided next to the wire barrel 16 and connected to an opposing terminal fitting. The wire barrel 16 contains a deformed portion 30 pressed by the wire 11 and deformed outwards in the radial direction by protruding part of the wire barrel 16 towards the wire 11 and crimping the wire barrel 16 to the wire 11. The deformed portion 30 has a depressed part 34 on the wire-side surface. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

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

  2. Description of the Related Art Conventionally, as a terminal fitting connected to an end of an electric wire, for example, the one described in Patent Document 1 is known. The terminal fitting is made of a metal plate material, and includes a crimping portion that is caulked from the outside to a core wire exposed from the end of the electric wire, and a connection portion that is connected to the mating terminal connected to the crimping portion.

  When an oxide film is formed on the surface of the core wire described above, there is a concern that the contact resistance between the core wire and the crimp portion is increased due to the oxide film being interposed between the core wire and the crimp portion.

  Therefore, in the prior art, a concave portion (serration) continuously extending in a direction intersecting the axial direction of the electric wire is formed on the inner side (core wire side) of the crimping portion.

When the crimping portion is crimped to the core wire of the electric wire, the core wire is pressed by the crimping portion and extends in the axial direction. Then, the oxide film formed on the surface of the core wire is peeled off by being in sliding contact with the opening edge of the recess. Then, the new surface of the core wire comes into contact with the crimping portion. Thereby, the contact resistance between an electric wire and a terminal metal fitting can be made small.
JP-A-10-125362

  In recent years, the use of aluminum or an aluminum alloy as a core wire material has been studied. An oxide film is relatively easily formed on the surface of the aluminum or aluminum alloy. For this reason, for example, when aluminum or an aluminum alloy is used for the core wire of the electric wire, even when the recess is formed, the contact resistance between the core wire and the crimping portion may not be sufficiently reduced.

  This invention was completed based on the above situations, and provides the terminal metal fitting which reduced the contact resistance between electric wires, the wire harness provided with this terminal metal fitting, and the manufacturing method of a wire harness The purpose is to do.

  The present invention is a terminal fitting comprising a crimping portion made of a metal plate material and caulked from the outside to the end of an electric wire, and a connection portion connected to the mating terminal fitting connected to the crimping portion. The part is formed by projecting a part of the crimping part to the electric wire side and then pressing the crimping part to the electric wire to be deformed outwardly in the radial direction of the electric wire. A portion is provided, and a concave portion is formed on the surface of the deformed portion on the electric wire side.

  Moreover, this invention is a wire harness provided with the electric wire containing a conductor, and the terminal metal fitting connected to the said conductor exposed from the terminal of the said electric wire, Comprising: The said terminal metal fitting consists of a metal plate material, and the said conductor A crimping portion that is caulked from the outside, and a connection portion that is connected to the mating terminal fitting connected to the crimping portion, and the crimping portion has a portion of the crimping portion protruding toward the conductor side. Thereafter, a deformed portion is provided which is pressed from the electric wire by being crimped to the conductor and deformed outward in the radial direction of the electric wire, and the conductor side surface of the deformed portion is provided on the conductor side surface. Is characterized in that a recess is formed.

  In addition, the present invention provides a crimping portion that is caulked from the outside to the conductor exposed from the end of the electric wire including the conductor, and a connection that is connected to the mating terminal metal fitting connected to the crimping portion by pressing the metal plate material. A molding step of molding a terminal fitting comprising: a portion; a deformed portion in which a part of the crimping portion protrudes toward the electric wire; and a recess formed in the conductor-side surface of the deformed portion; And a caulking step of caulking the crimping portion to the conductor in a state where the conductor is placed on the crimping portion.

  When the crimping portion is caulked to the electric wire, the electric wire is pressed by the crimping portion and extends in the axial direction. Then, the opening edge of a recessed part and an electric wire slidably contact. Thereby, the oxide film formed on the surface of the electric wire is peeled off, and the new surface of the electric wire is exposed. The contact resistance between the electric wire and the terminal fitting can be reduced by contacting the new surface of the electric wire and the crimping portion.

  Furthermore, the deformation part formed in the crimping part is in a state of protruding to the electric wire side when the crimping part is caulked to the electric wire. The deformed portion protruding to the electric wire side is deformed outward in the radial direction of the electric wire by being pressed from the electric wire when the crimping portion is crimped to the electric wire. Then, the recessed part formed in the deformation | transformation part moves to the radial direction outward of an electric wire with a deformation | transformation of a deformation | transformation part. As described above, in addition to the extension of the electric wire, the recess itself also moves, so that the area in which the electric wire and the recess are in sliding contact can be increased as compared with the case where the deformation portion is not formed. As a result, since the contact area between the new surface of the electric wire and the terminal fitting can be increased, the contact resistance between the electric wire and the terminal fitting can be further reduced.

As embodiments of the present invention, the following embodiments are preferable.
The concave portion may be formed at a top portion in a state where the deformable portion protrudes toward the electric wire side.

  According to said structure, the opening edge of the recessed part formed in the top part in the state which the deformation | transformation part protruded to the electric wire side contacts with an electric wire reliably. Thereby, since the oxide film formed on the electric wire can be reliably removed by the opening edge of the recess, the contact resistance between the electric wire and the terminal fitting can be further reduced.

  The deforming portion has a pair of side wall portions that face each other in a state of protruding to the electric wire side, one of the side wall portions is a first side wall portion, and the other of the side wall portions is the crimping portion. The second side wall portion may be formed so as to be inclined more gently than the first side wall portion with respect to the wall surface.

  When the crimping portion is crimped to the conductor, the deforming portion is deformed outward in the radial direction of the electric wire by pressing the crimping portion against the conductor. At this time, the top part of the deformation part moves in the direction along the wall surface of the crimping part as the deformation part deforms outward in the radial direction of the electric wire.

  According to said structure, a deformation | transformation part has a 1st side wall part and the 2nd side wall part formed incline more gently than this 1st side wall part. As a result, as shown in FIG. 3, the amount of movement of the first side wall portion formed relatively standing with respect to the wall surface of the crimping portion in the direction along the wall surface of the crimping portion (the left-right direction in FIG. 3) is , Larger than the second side wall portion formed so as to be inclined more gently than the first side wall portion. As a result, the concave portion formed at the top of the deformed portion moves to the side where the second side wall portion is formed as a whole. In FIG. 3, the deformation part located on the left side moves to the left (direction indicated by arrow A) in FIG. 3, and the deformation part located on the right side moves to the right (direction indicated by arrow B). To do.

  Thus, according to said structure, the movement amount about the direction along the wall surface of a crimping | compression-bonding part of the recessed part formed in the top part of a deformation | transformation part is controllable.

  The first side wall part and the second side wall part may be provided at a position that intersects the axial direction of the electric wire in the deformation part.

  According to said structure, when the crimping | compression-bonding part is crimped to an electric wire, the recessed part formed in the top part of a deformation | transformation part moves to the axial direction of an electric wire. Moreover, as above-mentioned, an electric wire is extended in the axial direction of an electric wire by crimping a crimping | compression-bonding part. According to said structure, in addition to an electric wire extending in the axial direction, a recessed part also moves to the axial direction of an electric wire. As a result, the area in which the electric wire and the concave portion of the electric wire are in sliding contact can be further increased. Thereby, since the contact area of the new surface of an electric wire and a terminal metal fitting can be enlarged further, the contact resistance of an electric wire and a terminal metal fitting can be made still smaller.

  The conductor may be made of aluminum or an aluminum alloy.

  When the conductor is made of aluminum or an aluminum alloy, in order to break the oxide film formed on the surface of the conductor and reduce the contact resistance, it is necessary to crimp the crimping portion to the core wire with a high compression rate. In such a case, this configuration is effective.

  According to the present invention, the contact resistance between the terminal fitting and the electric wire can be reduced.

  An embodiment of the present invention will be described with reference to FIGS. The wire harness 10 according to the present embodiment includes an electric wire 11 and a female terminal fitting 12 (corresponding to a terminal fitting) connected to the end of the electric wire 11.

  As shown in FIG. 1, the electric wire 11 is formed by surrounding an outer periphery of a core wire 13 (corresponding to a conductor) with an insulating coating 14. The core wire 13 may be made of any metal such as aluminum, aluminum alloy, copper, copper alloy, or the like as necessary. The core wire 13 is formed by twisting a plurality of strands. The insulation coating 14 is peeled off at the end of the electric wire 11 and the core wire 13 is exposed.

  As shown in FIG. 1, the female terminal fitting 12 is formed by press-molding a metal plate (not shown) into a predetermined shape. The female terminal fitting 12 has an insulation barrel 15 that crimps the insulation coating 14 of the electric wire 11 from outside. On the left side of the insulation barrel 15 in FIG. 1, a wire barrel 16 (corresponding to a crimping portion) is formed which is connected to the insulation barrel 15 and crimps the core wire 13 of the electric wire 11 from the outside.

  On the left side of the wire barrel 16 in FIG. 1, a cylindrical connection portion 17 is connected to the wire barrel 16 and is electrically connected by fitting with a male terminal fitting (not shown) (corresponding to a counterpart terminal fitting). Is formed.

  Now, FIG. 2 shows the wire barrel 16 in the unfolded state. The surface on the front side in FIG. 2 is the inner side when the electric wire 11 is caulked to the wire barrel 16 and is located on the electric wire 11 side.

  The wire barrel 16 is provided with a plurality of deforming portions 30 that protrude to the electric wire 11 side (the front side in the direction passing through the paper surface in FIG. 2). Each deformation portion 30 has a substantially rectangular shape when viewed from the direction intersecting the wall surface of the wire barrel 16. In the wire barrel 16, a pair of deformed portions 30, 30 arranged with a gap in the axial direction of the electric wire 11 (left and right direction in FIG. 2) are spaced in the axial direction of the electric wire 11 (left and right direction in FIG. 2). They are arranged in two rows and are arranged in three rows at intervals in the direction intersecting the axial direction of the electric wires 11 (up and down direction in FIG. 2).

  FIG. 4 shows a cross-sectional view of the wire barrel 16 in a state after the deformed portion 30 is formed on the wire barrel 16 and before the wire barrel 16 is crimped to the electric wire 11. The deformed portion 30 is arranged so as to be positioned at the bottom of the wire barrel 16 in FIG. 4 and a pair of side portions that rise obliquely upward from the left and right side edges of the bottom in FIG. 4 in a state where the wire barrel 16 is bent. Has been.

  As shown in FIG. 3, the deformable portion 30 has a substantially trapezoidal shape that is formed wider as it goes downward in FIG. 3 when viewed from the side. The deformable portion 30 includes a first side wall portion 31 that is formed to be relatively cut from the wall surface of the wire barrel 16 at a position that intersects the axial direction of the electric wire 11 (left and right direction in FIG. 3), and the axial direction of the electric wire 11. The second side wall part 32 is formed at a position that intersects with the first side wall part 31 and is inclined more gently than the first side wall part 31 with respect to the wall surface of the wire barrel 16. In addition, the deformation | transformation parts 30 and 30 which make a pair are formed in the attitude | position in which the 1st side wall parts 31 and 31 oppose.

  As shown in FIG. 3, a concave portion 34 is formed in the top portion 33 of the deformable portion 30 that has the largest protrusion height dimension from the wire barrel 16. As shown in FIG. 2, when viewed from the direction intersecting with the wall surface of the wire barrel 16, the recess 34 has a substantially rectangular shape. The rectangular recess 34 is formed to extend in a direction intersecting the axial direction of the electric wire 11 (vertical direction in FIG. 2).

  In FIG. 5, the principal part expanded side sectional view of the wire barrel 16 vicinity in the state after crimping the wire barrel 16 to the core wire 13 of the electric wire 11 is shown. When the wire barrel 16 is crimped to the core wire 13, the wire barrel 16 is pressed radially outward (downward in FIG. 5) by the reaction from the core wire 13. Thereby, in a state where the caulking of the wire barrel 16 to the core wire 13 is completed, the deformable portion 30 is deformed outward in the radial direction of the electric wire 11. In this embodiment, the deformation | transformation part 30 is deform | transforming until it becomes substantially flush with the wall surface of the area | region different from the area | region in which the deformation | transformation part 30 was formed among the wire barrels 16. FIG. In FIG. 5, the deformable portion 30 is represented by a region surrounded by a dotted line in the wire barrel 16.

  In addition, the deformation | transformation part 30 and the area | region different from the deformation | transformation part 30 among the wire barrels 16 are identifiable by confirming the presence or absence of a deformation | transformation with the naked eye, for example, It can be identified by analyzing deformation marks, changes in barrel pressure, and the like in a region different from the deformation portion 30.

Then, an example of the manufacturing process of the wire harness 10 which concerns on this embodiment is demonstrated.
(Molding process)
First, a metal plate is formed into a predetermined shape by pressing. At this time, as shown in FIG. 2, a plurality of deformed portions 30 are formed in the wire barrel 16. Subsequently, the connection part 17 is formed by bending a metal plate formed in a predetermined shape, and the wire barrel 16 and the insulation barrel 15 are bent as shown in FIG.

(Caulking process)
The female terminal fitting 12 is placed on a lower mold (not shown). On the wire barrel 16 of the female terminal fitting 12, the core wire 13 exposed by peeling off the insulating coating 14 at the end of the electric wire 11 is placed, and on the insulation barrel 15 of the female terminal fitting 12, the electric wire 11 is placed. The insulating coating 14 is placed.

  Subsequently, the upper die (not shown) is moved downward, and the female terminal fitting 12 and the electric wire 11 are sandwiched between the lower die. Then, the lower surface of the upper mold comes into contact with the wire barrel 16 and the insulation barrel 15. Further, when pressed downward by the upper mold, the wire barrel 16 is caulked to hold the core wire 13 from the outside, and the insulation barrel 15 is caulked to hold the insulating coating 14 of the electric wire 11 from the outside. Thus, the wire harness 10 is completed.

Then, the effect | action and effect of this embodiment are demonstrated.
When the wire barrel 16 is crimped to the core wire 13, the core wire 13 is pressed by the wire barrel 16 and extends in the axial direction of the core wire 13. Then, the opening edge of the recessed part 34 and the core wire 13 are in sliding contact. Thereby, the oxide film formed on the surface of the core wire 13 is peeled off, and the new surface of the core wire 13 is exposed. The contact resistance between the electric wire 11 and the female terminal fitting 12 can be reduced by contacting the new surface of the core wire 13 and the wire barrel 16.

  And in this embodiment, when the wire barrel 16 is caulked to the core wire 13, the deformation | transformation part 30 formed in the wire barrel 16 is the state protruded to the core wire 13 side. The deformed portion 30 protruding toward the core wire 13 is deformed outward in the radial direction of the electric wire 11 by being pressed from the core wire 13 when the wire barrel 16 is crimped to the core wire 13. Then, the concave portion 34 formed in the deformable portion 30 moves outward in the radial direction of the electric wire 11 as the deformable portion 30 is deformed. Thus, in addition to the extension of the core wire 13, the recess 34 itself also moves, so that the area in which the core wire 13 and the recess 34 are in sliding contact can be increased as compared with the case where the deformable portion 30 is not formed. As a result, since the contact area between the new surface of the core wire 13 and the female terminal fitting 12 can be increased, the contact resistance between the electric wire 11 and the female terminal fitting 12 can be further reduced.

  Further, when the wire barrel 16 is caulked to the core wire 13, the wire barrel 16 is pressed against the core wire 13, so that the deformable portion 30 is deformed outward in the radial direction of the electric wire 11. At this time, the top 33 of the deformable portion 30 moves in the direction along the wall surface of the wire barrel 16 as the deformable portion 30 deforms outward in the radial direction of the electric wire 11.

  According to the present embodiment, the deformable portion 30 is formed with a first side wall portion that is formed to be relatively upright with respect to the wall surface of the wire barrel 16, and a first side wall portion that is formed with a gentler inclination than the first side wall portion. 2 side wall portions 32. As a result, as shown in FIG. 3, the amount of movement of the first side wall portion 31 formed to stand up with respect to the wall surface of the wire barrel 16 in the direction along the wall surface of the wire barrel 16 (the left-right direction in FIG. 4) is It becomes larger than the second side wall portion 32 formed to be inclined more gently than the first side wall portion 31. As a result, the recessed part 34 formed in the top part 33 of the deformation | transformation part 30 moves to the side in which the 2nd side wall part 32 was formed as a whole. In FIG. 3, the deforming portion 30 located on the left side moves to the left (direction indicated by arrow A) in FIG. 3, and the deforming portion 30 located on the right side is indicated to the right (direction indicated by arrow B). Move to.

  Thus, according to the present embodiment, the amount of movement of the recess 34 formed in the top 33 of the deformable portion 30 in the direction along the wall surface of the wire barrel 16 can be controlled.

  In the present embodiment, the first sidewall portion 31 and the second sidewall portion 32 are provided at positions that intersect the axial direction of the electric wire 11. Thereby, when the wire barrel 16 is caulked to the core wire 13, the concave portion 34 formed in the top portion 33 of the deformable portion 30 moves in the axial direction of the electric wire 11. Further, as described above, the core wire 13 extends in the axial direction of the electric wire 11 when the wire barrel 16 is caulked. According to this embodiment, in addition to the core wire 13 extending in the axial direction, the recess 34 also moves in the axial direction of the electric wire 11. As a result, the area where the core wire 13 and the recess 34 are in sliding contact can be further increased. Thereby, since the contact area of the new surface of the core wire 13 and the female terminal fitting 12 can be further increased, the contact resistance between the electric wire 11 and the female terminal fitting 12 can be further reduced.

  Moreover, in this embodiment, the opening edge of the recessed part 34 formed in the top part 33 in the state which protruded to the electric wire 11 side among the deformation | transformation parts 30 contacts the core wire 13 reliably. Thereby, since the oxide film formed on the core wire 13 can be reliably removed by the opening edge of the recess 34, the contact resistance between the electric wire 11 and the female terminal fitting 12 can be further reduced.

  In addition, when the core wire 13 consists of aluminum or aluminum alloy, in order to break the oxide film formed on the surface of the core wire 13 and to reduce the contact resistance, the wire barrel 16 has a high compression ratio (for example, about 40 to 70%). Must be caulked to the core wire 13. In such a case, the present embodiment is extremely effective. The compression rate is defined by {(conductor area after compression) / (conductor area before compression)} × 100.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the present embodiment, a single wire barrel 16 is formed with a plurality of deformable portions 30, but the number of deformable portions 30 may be one.
(2) In the present embodiment, one concave portion 34 is formed in one deformable portion 30, but a plurality of concave portions 34 may be formed in one deformable portion 30.
(3) The deformation part 30 is good also as a structure formed in arbitrary positions among the wire barrels 16 as needed.
(4) The height dimensions of the deformable portion 30 may all be the same, or may differ depending on the site where the deformable portion 30 is formed.
(5) In the present embodiment, the first side wall portion 31 is formed so as to be opposed to the pair of deforming portions 30. However, the present invention is not limited to this, and the first side wall portion 31 is formed as necessary. Thus, it may be formed at any position of the deformable portion 30.
(6) In this embodiment, although the recessed part 34 was set as the structure formed in the vicinity of the top part 33 among the deformation | transformation parts 30, it is not restricted to this, The recessed part 34 is arbitrary of the deformation | transformation part 30 as needed. You may form in the position.
(7) In the present embodiment, the first side wall portion 31 and the second side wall portion 32 are provided. However, the present invention is not limited to this, and all the side walls of the deformable portion 30 are inclined with respect to the wall surface of the wire barrel 16. , May be substantially equal.
(8) In the present embodiment, the terminal fitting is the female terminal fitting 12, but the terminal fitting is not limited to this, and may be a male terminal fitting, or a shape in which a through-hole penetrating the plate material is formed (so-called LA terminal). It is good. That is, the connection part 17 of a terminal metal fitting can take arbitrary shapes as needed.
(9) In the present embodiment, the electric wire 11 is the covered electric wire 11, but the electric wire 11 is not limited to this, and may be a bare electric wire or a shielded electric wire when insulated from the surroundings. Any wire can be used. The conductor of the electric wire may be a core wire of a covered electric wire, or may be a central conductor of a shielded electric wire or a braided wire, and can take any configuration as necessary.
(10) As for the shape of the barrel piece of the wire barrel 16, three or more may be formed alternately from the left and right sides, or only one may be formed.
(11) In the present embodiment, in a state where the caulking of the wire barrel 16 is completed, the deformable portion 30 is substantially flush with the wall surface of a region different from the portion where the deformable portion 30 is formed in the wire barrel 16. Although it is deformed, the present invention is not limited to this, and in a state where the crimping of the wire barrel 16 is completed, the deformable portion 30 may protrude toward the electric wire 11 side.

The side view which shows the wire harness which concerns on one Embodiment of this invention The principal part enlarged plan view which shows the female terminal metal fitting in the expansion | deployment state III-III sectional view in FIG. Longitudinal section showing wire barrel before caulking to core wire The principal part expanded side sectional view which shows the female terminal metal fitting after crimping to a core wire

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Wire harness 11 ... Electric wire 12 ... Female terminal metal fitting (terminal metal fitting)
16 ... Wire barrel (crimp part)
DESCRIPTION OF SYMBOLS 17 ... Connection part 30 ... Deformation part 31 ... 1st side wall part 32 ... 2nd side wall part 33 ... Top part 34 ... Recessed part

Claims (14)

A terminal fitting comprising a crimping portion made of a metal plate and crimped from the outside to the end of the electric wire, and a connection portion connected to the mating terminal fitting connected to the crimping portion,
In the crimping part, after protruding a part of the crimping part to the electric wire side, the crimping part is pressed against the electric wire to be pressed from the electric wire and deformed outward in the radial direction of the electric wire. The terminal fitting is characterized in that a deformed portion is provided, and a concave portion is formed on a surface of the deformed portion on the electric wire side. 2. The terminal fitting according to claim 1, wherein the concave portion is formed at a top portion in a state where the deformable portion protrudes toward the electric wire. The deforming portion has a pair of side wall portions that face each other in a state of protruding to the electric wire side, one of the side wall portions is a first side wall portion, and the other of the side wall portions is the crimping portion. 3. The terminal fitting according to claim 1, wherein the terminal fitting is formed so as to be gently inclined with respect to a wall surface than the first side wall portion to form a second side wall portion. 4. 4. The terminal fitting according to claim 3, wherein the first side wall portion and the second side wall portion are provided at a position of the deformable portion that intersects an axial direction of the electric wire. A wire harness comprising an electric wire including a conductor, and a terminal fitting connected to the conductor exposed from an end of the electric wire,
The terminal fitting includes a crimping portion made of a metal plate and caulked to the conductor from the outside, and a connection portion connected to the mating terminal fitting connected to the crimping portion, and the crimping portion includes the crimping portion. After a part of the portion protrudes to the conductor side, a deformed portion is provided that is pressed from the electric wire and deformed outward in the radial direction of the electric wire by crimping the crimping portion to the conductor. The wire harness is characterized in that a concave portion is formed on the conductor side surface of the deformed portion. 6. The wire harness according to claim 5, wherein the concave portion is formed at a top portion in a state where the deformable portion protrudes toward the conductor. The deforming portion has a pair of side wall portions that are opposed to each other in a state of protruding to the conductor side, and the one side wall portion is formed to stand up against the wall surface of the crimping portion. The other side wall portion is formed so as to be more gently inclined than the first side wall portion with respect to the wall surface of the crimping portion to form a second side wall portion. 6. The wire harness according to 6. The wire harness according to claim 7, wherein the first side wall portion and the second side wall portion are provided at positions that intersect the axial direction of the electric wire in the deformable portion. The wire harness according to any one of claims 6 to 8, wherein the conductor is made of aluminum or an aluminum alloy. By press-molding a metal plate material, a crimping portion caulked from the outside exposed from the end of the electric wire including the conductor, a connection portion connected to the mating terminal metal fitting connected to the crimping portion, and the crimping portion A molding step of molding a terminal fitting comprising: a deformed portion protruding a part of the wire to the electric wire side; and a recess formed on the conductor side surface of the deformed portion;
A caulking step for caulking the crimping portion to the conductor in a state where the conductor is placed on the crimping portion;
The manufacturing method of the wire harness which performs. The said recessed part is formed in the top part in the state in which the said deformation | transformation part protruded to the said conductor side, The manufacturing method of the wire harness of Claim 10 characterized by the above-mentioned. The deforming portion has a pair of side wall portions that are opposed to each other in a state of protruding to the conductor side, and the one side wall portion is formed to stand up against the wall surface of the crimping portion. The other side wall portion is formed so as to be more gently inclined than the first side wall portion with respect to the wall surface of the pressure-bonding portion as the second side wall portion. The manufacturing method of the wire harness of 11. The method for manufacturing a wire harness according to claim 12, wherein the first side wall portion and the second side wall portion are provided at positions that intersect the axial direction of the electric wire in the deformable portion. The method for manufacturing a wire harness according to any one of claims 10 to 13, wherein the conductor is made of aluminum or an aluminum alloy.

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