JP7113796B2 - Terminals and wires with terminals - Google Patents

Description

TECHNICAL FIELD The present disclosure relates to terminals and electric wires with terminals.

2. Description of the Related Art Conventionally, there has been known a terminal-equipped electric wire in which a terminal is connected to a core wire exposed from an end of the electric wire. As such a terminal, for example, there is a terminal provided with a crimp portion that is crimped from the outside to a core wire exposed from an end of an electric wire.

For crimping the terminal to the electric wire, for example, the following procedure is performed. First, a terminal having a predetermined shape is formed by pressing a metal plate material. Subsequently, the terminal is placed on the placement portion of the lower mold located on the lower side of the pair of molds that are relatively movable in the vertical direction. Subsequently, the core wire exposed from the end of the electric wire is laid on the crimping portion of the terminal. After that, one or both of the pair of molds are moved in a direction toward each other, and the crimping portion is sandwiched between the crimping portion of the upper mold and the mounting portion of the lower mold, thereby forming the core wire of the electric wire. crimp to. As described above, the terminal is connected to the end of the electric wire (see Patent Document 1).

JP-A-2005-50736

However, according to the above technique, relatively large-scale equipment such as molds and jigs for crimping the crimping portion of the terminal to the core wire of the electric wire is required, so equipment investment is required and the manufacturing cost increases. There is a problem.
To solve the above problem, the following terminals are conceivable. The terminal includes a terminal body having a holding portion deformable along the direction in which the wire extends, and a slide portion movable with respect to the terminal body along the direction in which the wire extends. The slide portion has a pressing portion that presses the clamping portion against the wire while the wire is arranged on the clamping piece.

In order to improve the reliability of the electrical connection between the terminal and the wire, it is conceivable to provide an uneven shape in the clamping portion and securely clamp the wire by means of this uneven shape. However, it is not preferable that the manufacturing cost of the terminal increases significantly due to the uneven shape.

The technology disclosed in the present specification has been perfected based on the above circumstances, and aims to provide a terminal with reduced manufacturing costs.

The present disclosure provides a terminal connected to a front end portion of an electric wire in an extending direction, the terminal body having a clamping portion that clamps the electric wire, and a terminal body that is slidable with respect to the terminal body along the extending direction of the electric wire. and a sliding portion, wherein the sliding portion has a pressurizing portion that presses the clamping portion toward the electric wire, the terminal body is formed of a bent metal plate, and the clamping portion is It has a holding protrusion that protrudes toward the electric wire and contacts the electric wire, and the holding protrusion is formed by folding the metal plate material.

According to the present disclosure, the manufacturing cost of terminals can be reduced.

1 is a side view showing an electric wire with a terminal according to a first embodiment; FIG. FIG. 2 is a side sectional view showing an electric wire with a terminal. FIG. 3 is a perspective view showing a terminal body. FIG. 4 is a perspective view showing a terminal body. FIG. 5 is a side view showing a process of pushing forward the sliding portion arranged at the temporary locking position with respect to the terminal body with a jig. FIG. 6 is a perspective view showing a metal plate member forming a terminal body. FIG. 7 is a perspective view showing the steps of manufacturing the terminal body. FIG. 8 is a perspective view showing a process of manufacturing the terminal body. FIG. 9 is a perspective view showing a process of manufacturing the terminal body. FIG. 10 is a perspective view showing a terminal body according to a second embodiment; FIG. 11 is a right side view of the terminal body. FIG. 12 is a side sectional view showing an electric wire with a terminal. 13 is a perspective view of a terminal body according to a third embodiment; FIG. FIG. 14 is a plan view showing the terminal body. 15 is a perspective view of a terminal body according to a fourth embodiment; FIG. FIG. 16 is a plan view showing a metal plate member forming the terminal body. FIG. 17 is a perspective view showing a metal plate member forming a terminal body. FIG. 18 is a perspective view showing a process of manufacturing the terminal body. FIG. 19 is a perspective view showing a process of manufacturing the terminal body. FIG. 20 is a perspective view showing a process of manufacturing the terminal body. FIG. 21 is a perspective view showing a terminal body according to a fifth embodiment, and is an enlarged view of the vicinity of a lower clamping portion. FIG. 22 is a side view showing the terminal main body, and is an enlarged view of the vicinity of the lower clamping portion.

[Description of Embodiments of the Present Disclosure]
First, embodiments of the present disclosure are enumerated and described.

(1) The present disclosure relates to a terminal connected to a front end portion of an electric wire in an extending direction, the terminal body having a clamping portion that clamps the electric wire, and the terminal body along the extending direction of the electric wire. a sliding portion that can slide through the terminal, the sliding portion having a pressing portion that presses the clamping portion toward the electric wire, and the terminal body is formed of a bent metal plate, The clamping portion has a holding projection that protrudes toward the electric wire and contacts the electric wire, and the holding projection is formed by folding the metal plate material.

Since the holding protrusion can be formed by folding the metal plate material, the manufacturing cost of the terminal can be reduced compared to the case where the hammering process or the like is separately performed.

(2) The terminal body has a plurality of the holding portions, each of the plurality of holding portions has the holding projection, and the holding projection of each of the plurality of holding portions is the wire. It is preferable that it is provided at a position shifted with respect to the extending direction of.

The electric wire sandwiched between the plurality of holding portions is held between the plurality of holding portions while being bent in a direction intersecting the extending direction of the wire by holding projections provided at positions shifted with respect to the extending direction of the wire. . By bending the electric wire, the edge of the holding protrusion can be bitten into the electric wire. Thereby, the electric wire and the terminal can be reliably electrically connected.

(3) It is preferable that the holding projection is formed by folding the metal plate material at a side edge along the extending direction of the electric wire.

For example, if the holding portion is formed by folding the metal plate at a side edge (for example, a rear edge) that intersects with the extending direction of the electric wire, the holding projection may be pushed back when the electric wire is pulled backward. By rubbing against the electric wire, the holding protrusion is turned up backward. In the above configuration, since the holding protrusion is formed by folding over the side edges of the clamping portion along the extending direction of the electric wire, it is possible to suppress the holding protrusion from being turned over.

(4) It is preferable that the holding projection is formed by folding the metal plate material at a side edge that intersects the extending direction of the electric wire.

Since the metal plate protruding in the direction in which the electric wire extends can be used, for example, as a connecting portion with the carrier, the yield is improved compared to a structure in which the connecting portion of the metal plate protrudes in a direction intersecting with the extending direction of the electric wire. .

(5) It is preferable that the clamping portion includes a rear receiving portion projecting toward the electric wire behind the holding protrusion in the extending direction of the electric wire.

When the wire is pulled backward and the holding projection slides on the wire and receives a force backward, the rear receiving portion comes into contact with the holding projection from the rear, resulting in rearward displacement of the holding projection. can be suppressed.

(6) It is preferable that at least one side edge of the clamping portion is formed with an easily bendable portion that is narrow in a direction intersecting with the extending direction of the electric wire.

By providing the easily bendable portion at a position where the holding portion is desired to be bent, the holding portion can be bent at a desired position. As a result, the wire can be reliably held by the holding portion, so that the electrical connection reliability between the terminal and the wire can be improved.

(7) The easily bendable portion includes a first easily bendable portion provided on one side edge of the holding portion and a second easily bendable portion provided on the other side edge of the holding portion. It is preferable that the bent portion and the second easily bendable portion are formed at positions shifted in the extending direction of the electric wire.

Since the first easily bendable part and the second easily bendable part are provided at positions shifted in the extending direction of the electric wire, the first easily bendable part and the second easily bendable part are at the same position in the extending direction of the electric wire. The clamping portion is less likely to bend than when it is provided. As a result, it is possible to prevent the holding portion from easily bending due to vibration or the like.

(8) The terminal main body is provided with a bending restricting portion that comes into contact with the clamping portion when the pressurizing portion presses the clamping portion and suppresses excessive bending of the clamping portion. preferably.

Since the bending restricting portion can prevent the clamping portion from being excessively bent, the clamping portion can clamp the electric wire with an appropriate pressure. Thereby, the electrical connection reliability between the terminal and the electric wire can be improved.

(9) The terminal main body has a side wall rising from a side edge of the clamping portion, and the side wall has a rear end portion in the direction in which the wire extends and widens rearward in the direction in which the wire extends. It is preferable that the chamfered portion is formed so as to be slanted at a

When the electric wire is inserted into the terminal body from behind in the direction in which the electric wire extends, the chamfered portion guides the electric wire inward of the terminal body. As a result, it is possible to improve the efficiency of the connection work between the terminal and the electric wire.

(10) An electric wire with a terminal according to the present disclosure includes the terminal according to any one of (1) to (9) above, and an electric wire connected to the terminal.

[Details of the embodiment of the present disclosure]
Embodiments of the present disclosure are described below. The present invention is not limited to these examples, but is indicated by the scope of the claims, and is intended to include all modifications within the meaning and scope of equivalents to the scope of the claims.

<Embodiment 1>
Embodiment 1 of the present disclosure will be described with reference to FIGS. 1 to 9. FIG. A terminal-equipped wire 10 according to this embodiment includes a wire 11 and a terminal 12 connected to the wire 11 . In the following description, the direction indicated by arrow Z is upward, the direction indicated by arrow Y is forward, and the direction indicated by arrow X is left. In addition, regarding a plurality of identical members, only some members may be given reference numerals, and the reference numerals of other members may be omitted.

[Electric wire 11]
As shown in FIG. 1, the electric wire 11 is arranged to extend in the front-rear direction (an example of the extending direction). The electric wire 11 has a core wire 13 surrounded by an insulating coating 14 made of an insulating synthetic resin. The core wire 13 according to this embodiment consists of one metal wire. Note that the core wire 13 may be a twisted wire formed by twisting a plurality of thin metal wires. Any metal such as copper, a copper alloy, aluminum, an aluminum alloy, or the like can be appropriately selected as the metal constituting the core wire 13 as necessary. The core wire 13 according to this embodiment is made of copper or a copper alloy.

[Terminal 12]
As shown in FIG. 1 , the terminal 12 includes a metal terminal main body 15 and a slide portion 16 that can slide relative to the terminal main body 15 .

[Terminal body 15]
The terminal body 15 is formed by pressing a metal plate into a predetermined shape. Any metal, such as copper, a copper alloy, aluminum, an aluminum alloy, or stainless steel, can be appropriately selected as the metal forming the terminal main body 15 as necessary. The terminal body 15 according to this embodiment is made of copper or a copper alloy. A plating layer may be formed on the surface of the terminal body 15 . Any metal such as tin, nickel, silver, or the like can be appropriately selected as the metal forming the plating layer. The terminal body 15 according to this embodiment is plated with tin.

As shown in FIG. 2 , the terminal body 15 has a cylindrical portion 17 into which a mating terminal (not shown) can be inserted, and a wire connection portion 20 positioned behind the cylindrical portion 17 and connected to the wire 11 . The wire connecting portion 20 includes an upper clamping portion 18A and a lower clamping portion 18B extending rearward.

As shown in FIG. 2, the tubular portion 17 has a rectangular tubular shape extending in the front-rear direction. The front end of the tubular portion 17 is opened so that the mating terminal can be inserted therein. An elastic contact piece (not shown) is arranged inside the cylindrical portion 17 . By elastically contacting the resilient contact piece with the mating terminal inserted into the tubular portion 17, the tubular portion 17 and the mating terminal are electrically connected.

As shown in FIG. 3 , a wire connecting portion 20 having a rectangular tubular shape is provided behind the tubular portion 17 . An upper clamping portion 18A (an example of a clamping portion) is provided extending rearward from the rear end portion of the upper wall of the wire connection portion 20, and a lower clamping portion is provided at the rear end portion of the lower wall of the wire connection portion 20. 18B (an example of a clamping portion) is provided extending rearward. The upper clamping portion 18A and the lower clamping portion 18B have an elongated shape extending forward and backward. The upper clamping portion 18A and the lower clamping portion 18B are formed to have approximately the same length in the front-rear direction. The wire connecting portion 20 is formed with a left side wall 34 rising from a left edge 30 of the upper clamping portion 18A and a left edge 32 of the lower clamping portion 18B. A right side wall 35 is formed rising from the right side edge 33 of the portion 18B.

As shown in FIG. 3, an upper holding projection 23A projecting downward is provided on the lower surface of the upper clamping portion 18A at a position forward of the rear end portion. The upper holding protrusion 23A is formed in a folded state in which a portion protruding from the left edge 30 of the upper clamping portion 18A is in close contact with the lower surface of the upper clamping portion 18A. The right end portion of the upper clamping portion 18A is formed so as not to protrude rightward from the right edge 31 of the upper clamping portion 18A.

As shown in FIG. 3, a lower holding protrusion 23B protruding upward is provided at the rear end portion of the upper surface of the lower holding portion 18B. The lower holding protrusion 23B is formed in a folded state in which a portion protruding rearward from the rear end portion of the lower clamping portion 18B is in close contact with the upper surface of the lower clamping portion 18B. In other words, the lower holding protrusion 23B is formed by folding a metal plate material at the rear edge 18C (the side edge intersecting the extending direction of the electric wire 11) of the lower holding portion 18B. A region of the lower clamping portion 18B provided with the lower holding protrusion 23B is reinforced by the lower holding protrusion 23B and is therefore less likely to bend.

As shown in FIG. 2, the lower holding protrusion 23B and the upper holding protrusion 23A are provided at positions shifted in the front-rear direction. The rear end portion of the upper holding protrusion 23A and the front end portion of the lower holding protrusion 23B are formed slightly apart in the front-rear direction. The distance between the rear end portion of the upper holding protrusion 23A and the front end portion of the lower holding protrusion 23B is set smaller than the diameter of the core wire 13 . As a result, an edge 50A formed at the rear end of the upper holding projection 23A and an edge 50B formed at the front end of the lower holding projection 23B bite into the core wire 13. As shown in FIG.

The lower surface of the upper clamping portion 18A and the upper surface of the lower clamping portion 18B bite into the oxide film formed on the surface of the core wire 13 and peel off the oxide film, thereby exposing the metal surface of the core wire 13. . Core wire 13 and terminal main body 15 are electrically connected by bringing the metal surface into contact with upper clamping portion 18A and lower clamping portion 18B.

In addition, the lower surface of the upper holding protrusion 23A and the upper surface of the lower holding protrusion 23B bite into the oxide film formed on the surface of the core wire 13 and peel off the oxide film, thereby exposing the metal surface of the core wire 13. It has become. The core wire 13 and the terminal main body 15 are electrically connected by bringing the metal surface into contact with the upper holding protrusion 23A and the lower holding protrusion 23B.

Further, an edge 50A formed at the rear end portion of the upper holding projection 23A and an edge 50B formed at the front end portion of the lower holding projection 23B bite into the core wire 13, thereby forming on the surface of the core wire 13. The oxide film that has been applied is stripped off. Thereby, the electrical connection between the core wire 13 and the terminal main body 15 can be made more reliably.

At the front end portion of the lower clamping portion 18B, a left easily bendable portion 51 is provided by notching rightward from the left edge 32 of the lower clamping portion 18B (see FIG. 3). A right bendable portion 52 is provided by notching leftward from the right edge 33 (see FIG. 4). The left easily bendable portion 51 and the right easily bendable portion 52 are provided at the same position in the front-rear direction. The portion of the lower clamping portion 18B where the left easily bendable portion 51 and the right easily bendable portion 52 are provided is formed narrower in the left-right direction than the other portions. As a result, the lower holding portion 18B is bent with the left easily bendable portion 51 and the right easily bendable portion as starting points.

[Slide part 16]
As shown in FIG. 2, the slide portion 16 has a rectangular tubular shape extending in the front-rear direction. The slide portion 16 is formed into a predetermined shape by a known technique such as press working, cutting, casting, or the like. Any metal such as copper, a copper alloy, aluminum, an aluminum alloy, or stainless steel can be appropriately selected as the metal forming the slide portion 16 as necessary. The slide portion 16 according to the present embodiment is made of stainless steel, although not particularly limited. A plated layer may be formed on the surface of the slide portion 16 . Any metal such as tin, nickel, silver, or the like can be appropriately selected as the metal forming the plating layer.

As shown in FIG. 2, the front end of the upper wall of the slide portion 16 is formed with a jig contact portion 46 projecting upward. A jig 45, which will be described later, comes into contact with the jig contact portion 46 from behind (see FIG. 5).

As shown in FIG. 2, in the rear half portion of the slide portion 16, an upper pressure portion 25A (an example of a pressure portion) that protrudes downward is provided on the lower surface of the upper wall of the slide portion 16. As shown in FIG. A lower pressure portion 25B (an example of a pressure portion) that protrudes upward is provided on the upper surface of the lower wall of the slide portion 16 . Inclined surfaces are formed on the front surface of the upper pressure member 25A and the front surface of the lower pressure member 25B. Thereby, the rear end portion of the upper clamping portion 18A and the rear end portion of the lower clamping portion 18B are guided to the upper pressing portion 25A and the lower pressing portion 25B, respectively.

As shown in FIG. 1 , a side wall of the slide portion 16 is provided with a temporary locking receiving portion 26 at a position near the front end in the front-rear direction. Further, a main locking receiving portion 27 is opened in the side wall of the slide portion 16 at a position rearward of the temporary locking receiving portion 26 . The temporary locking receiving portion 26 and the final locking receiving portion 27 can be elastically locked with locking projections 28 provided on the left side wall 34 and the right side wall 35 of the terminal body 15, respectively.

A state in which the locking protrusion 28 of the terminal body 15 and the temporary locking receiving portion 26 of the sliding portion 16 are locked is a state in which the sliding portion 16 is held at the temporary locking position with respect to the terminal body 15 . (See Figure 1). In this state, the upper pressing portion 25A and the lower pressing portion 25B of the slide portion 16 are separated rearward from the rear edges of the upper holding portion 18A and the lower holding portion 18B of the terminal body 15, respectively. In this state, the distance between the upper clamping portion 18A and the lower clamping portion 18B is set larger than the diameter of the core wire 13. As shown in FIG.

The state in which the locking protrusion 28 of the terminal body 15 and the final locking receiving portion 27 of the sliding portion 16 are locked is a state in which the sliding portion 16 is locked to the terminal body 15 at the final locking position. (See Figure 5). In this state, the upper pressing portion 25A of the slide portion 16 is in contact with the upper clamping portion 18A from above the upper clamping portion 18A. Further, the lower pressurizing portion 25B of the slide portion 16 is in contact with the lower clamping portion 18B from below the lower clamping portion 18B.

As described above, the sliding portion 16 is fitted to the region of the terminal body 15 where the upper clamping portion 18A and the lower clamping portion 18B are provided. It is slidable in the front-rear direction between the positions.

As shown in FIG. 2, when the slide portion 16 is held at the final locking position with respect to the terminal main body 15, the upper pressing portion 25A presses the upper clamping portion 18A from above, whereby the upper clamping portion 18A is disengaged. is bent downward. Further, the lower pressing portion 25B presses the lower clamping portion 18B from below, thereby bending the lower clamping portion 18B upward. As a result, the core wire 13 is arranged in the space between the upper clamping portion 18A and the lower clamping portion 18B while extending in the front-rear direction (extending direction), and the slide portion 16 is fixed to the terminal main body 15. When held at the locking position, the core wire 13 is vertically sandwiched between the bent upper sandwiching portion 18A and the bent lower sandwiching portion 18B. That is, the upper clamping portion 18A is pressed downward by the upper pressing portion 25A to come into contact with the core wire 13 from above, and the lower clamping portion 18B is pressed upward by the lower pressing portion 25B to push the core wire 13 upward. is designed to come into contact with from below.

As shown in FIG. 2, when the slide portion 16 is held at the final locking position with respect to the terminal body 15, the upper holding protrusion 23A of the upper clamping portion 18A presses the core wire 13 from above, The lower holding projection 23B of the holding portion 18B presses the core wire 13 from below. In this manner, the core wire 13 is pressed from above by the upper holding protrusion 23A and is pressed from below by the lower holding protrusion 23B which is displaced from the upper holding protrusion 23A in the front-rear direction. , it is held in a bent state in the vertical direction (an example of a direction intersecting with the extending direction). The core wire 13 is held by the upper holding protrusion 23A and the lower holding protrusion 23B in a crank-like bent state when viewed from the side. The core wire 13 and the terminal 12 are also electrically connected by the upper holding protrusion 23A and the lower holding protrusion 23B.

As shown in FIG. 5, a jig contact portion 46 is formed at the front end portion of the upper wall of the slide portion 16 . The jig 45 comes into contact with the jig contact portion 46 from behind, and the slide portion 16 is pushed forward by the jig 45, thereby allowing the slide portion 16 to move forward. Note that the above jig 45 is relatively small compared to the mold and equipment for operating this mold. Therefore, an increase in cost due to the jig 45 is suppressed.

As shown in FIG. 5 , a pair of guiding portions 47 projecting inward of the slide portion 16 are provided on both left and right side walls at positions near the rear end portion of the slide portion 16 . The guiding portion 47 is formed to be narrower from the rear toward the front. The core wire 13 is guided into the sliding portion 16 by sliding the core wire 13 on the inner surface of the guiding portion 47 .

[Manufacturing process of electric wire 10 with terminal]
Next, an example of the manufacturing process of the electric wire with terminal 10 according to the present embodiment will be described. The manufacturing process of the electric wire with terminal 10 is not limited to the following description.

A metal plate 40 is pressed into the shape shown in FIG. Subsequently, as shown in FIG. 7, the upper holding projection 23A is folded over the upper clamping portion 18A, and the lower holding projection 23B is folded over the lower clamping portion 18B.

As shown in FIG. 8, the portion corresponding to the upper wall of the terminal body 15 is bent. After that, as shown in FIG. 9, the portion corresponding to the left side wall 34 of the terminal body 15 is bent. Finally, the terminal body 15 is formed by bending a portion corresponding to the right side wall 35 of the terminal body 15 .

A slide portion 16 is formed by a known method.

The slide portion 16 is attached to the terminal body 15 from behind. The front edge of the slide portion 16 abuts against the locking projection 28 of the terminal body 15 from behind, and the side wall of the slide portion 16 is expanded and deformed. When the slide portion 16 is further pushed forward, the side wall of the slide portion 16 is deformed back, and the temporary lock receiving portion 26 of the slide portion 16 is locked to the lock projection 28 of the terminal main body 15 . As a result, the slide portion 16 is held at the temporary locking position with respect to the terminal body 15 . Terminals 12 are thus obtained (see FIG. 5).

The core wire 13 of the electric wire 11 is exposed by stripping the insulation coating 14 by a known method. The front end portion of the core wire 13 is introduced into the slide portion 16 from the rear end portion of the slide portion 16 . The core wire 13 is guided to the slide portion 16 by coming into contact with the guiding portion 47 of the slide portion 16 . When the electric wire 11 is further pushed forward, the front end portion of the core wire 13 enters the inside of the terminal body 15 and reaches the space between the upper clamping portion 18A and the lower clamping portion 18B.

When the slide portion 16 is held at the temporary locking position with respect to the terminal body 15 , the distance between the upper clamping portion 18A and the lower clamping portion 18B is set larger than the outer diameter of the core wire 13 .

Next, as shown in FIG. 5, the jig 45 is brought into contact with the jig contact portion 46 from behind to slide the slide portion 16 forward. The slide portion 16 is moved forward relative to the terminal body 15 . At this time, the locking projection 28 of the terminal body 15 and the temporary locking receiving portion 26 of the slide portion 16 are disengaged, and the side wall of the slide portion 16 rides on the locking projection 28 and is expanded and deformed.

When the slide portion 16 is moved forward, the side wall of the slide portion 16 is restored and deformed so that the locking protrusion 28 of the terminal body 15 and the final locking receiving portion 27 of the slide portion 16 are elastically locked. As a result, the slide portion 16 is held at the final locking position with respect to the terminal body 15 .

While the slide portion 16 is held at the final locking position with respect to the terminal body 15, the upper pressing portion 25A of the slide portion 16 abuts the upper holding portion 18A of the terminal body 15 from above and presses it downward. do. Further, the lower pressing portion 25B of the slide portion 16 abuts on the lower holding portion 18B of the terminal main body 15 from below and presses it upward. Thereby, the core wire 13 is sandwiched between the upper sandwiching portion 18A and the lower sandwiching portion 18B from above and below (see FIG. 2).

As shown in FIG. 2, the core wire 13 is sandwiched between the lower surface of the upper clamping portion 18A and the upper surface of the lower clamping portion 18B. The constituent metal surfaces are exposed. The electric wire 11 and the terminal 12 are electrically connected by bringing the metal surface into contact with the upper clamping portion 18A and the lower clamping portion 18B.

In a state in which the core wire 13 is sandwiched between the upper clamping portion 18A and the lower clamping portion 18B from above and below, the core wire 13 is held by the upper holding projection 23A of the upper clamping portion 18A and the lower holding projection of the lower clamping portion 18B. 23B, it is held in a longitudinally extended state and in a vertically bent state. As a result, the core wire 13 can be held firmly, so that the holding force between the wire 11 and the terminal 12 can be increased when a tensile force acts on the wire 11 . Thereby, the electric wire 10 with a terminal is completed.

[Action and effect of the present embodiment]
Next, the effects of this embodiment will be described. This embodiment is a terminal 12 connected to a front end portion of an electric wire 11 in an extending direction, and includes a terminal main body 15 having an upper holding portion 18A and a lower holding portion 18B for holding the electric wire 11, and an extension terminal 15 of the electric wire 11. and a sliding portion 16 slidable with respect to the terminal body 15 along the direction, and the sliding portion 16 is an upper pressing portion that presses the upper clamping portion 18A and the lower clamping portion 18B toward the electric wire 11, respectively. The terminal main body 15 is formed of a bent metal plate material, and the upper clamping part 18A and the lower clamping part 18B project toward the electric wire 11, respectively. It has an upper holding protrusion 23A and a lower holding protrusion 23B that come into contact with the core wire 13, and the upper holding protrusion 23A is formed by folding a metal plate material.

Further, the terminal-equipped electric wire 10 according to this embodiment includes a terminal 12 and an electric wire 11 connected to the terminal 12 .

Since the upper holding protrusions 23A and the lower holding protrusions 23B can be formed by folding the metal plate material, the manufacturing cost of the terminals 12 can be reduced compared to the case where the hammering process or the like is performed separately. .

According to this embodiment, the terminal body 15 has an upper clamping portion 18A and a lower clamping portion 18B, and the upper clamping portion 18A and the lower clamping portion 18B are formed by an upper holding protrusion 23A and a lower holding protrusion 23A, respectively. 23B, and the upper holding protrusion 23A and the lower holding protrusion 23B are provided at positions shifted in the extending direction of the electric wire 11. As shown in FIG.

The core wire 13 of the electric wire 11 sandwiched between the upper holding portion 18A and the lower holding portion 18B is held by the upper holding protrusion 23A and the lower holding protrusion 23B provided at positions shifted in the extending direction of the wire 11. are clamped by the upper clamping portion 18A and the lower clamping portion 18B in a state of being bent in a direction intersecting the extending direction of the . By bending core wire 13 of electric wire 11 , edges 50 A and 50 B of upper holding projection 23 A and lower holding projection 23 B can be made to bite into core wire 13 of electric wire 11 . Thereby, the electric wire 11 and the terminal 12 can be reliably electrically connected. Since the terminal body 15 is formed by pressing a metal plate material, the edges 50A and 50B are formed in a sharp shape. This makes it easier for the edges 50A and 50B to bite into the core wire 13 .

The lower clamping portion 18B has a lower holding projection 23B formed by folding a metal plate at a rear edge 18C, which is a side edge intersecting the extending direction of the electric wire 11. As shown in FIG.

Since the metal plate protruding in the extending direction of the electric wire 11 can be used, for example, as a connecting portion with the carrier, it is compared with the structure in which the connecting portion of the metal plate protrudes in a direction intersecting with the extending direction of the electric wire (see FIG. 16). yield is improved.

According to the present embodiment, the left easily bendable portion 51 is formed narrow in the left-right direction (the direction intersecting with the extending direction of the electric wire 11) at the left edge 32 and the right edge 33 of the lower clamping portion 18B. and a right bendable portion 52 are formed.

By providing the left easily bendable portion 51 and the right easily bendable portion 52 at positions where the lower clamping portion 18B is desired to be bent, the lower clamping portion 18B can be bent at a desired position. As a result, the electric wire 11 can be securely held between the upper holding portion 18A and the lower holding portion 18B, so that the electrical connection reliability between the terminal 12 and the wire 11 can be improved.

According to this embodiment, the upper clamping portion 18A has an upper holding projection 23A formed by folding over the left edge 30 of the upper clamping portion 18A.

By providing the upper holding protrusion 23A at a portion of the upper clamping portion 18A that is not desired to be bent, it is possible to prevent the upper clamping portion 18A from bending at an unintended position. Since the upper holding protrusion 23A is formed by folding a metal plate, it is possible to suppress an increase in manufacturing cost.

<Embodiment 2>
Next, the terminal 62 and the electric wire with terminal 60 according to the second embodiment of the present disclosure will be described with reference to FIGS. 10 to 12. FIG.

As shown in FIG. 10, an upper holding projection 73A is formed on the left edge 30 of the upper clamping portion 68A provided on the terminal body 65. As shown in FIG. The upper holding protrusion 73A protrudes from the left edge 30 of the upper holding portion 68A and is folded in close contact with the lower surface of the upper holding portion 68A. A region of the upper clamping portion 68A provided with the upper holding protrusion 73A is reinforced by the upper holding protrusion 73A and is therefore less likely to bend.

As shown in FIG. 10, the left side wall 34 of the wire connection portion 80 is formed so that the height in the vertical direction decreases from the front to the rear in the region where the upper holding protrusion 73A is formed. At the upper end edge of the left side wall 34 of the wire connecting portion 80, an obliquely downward portion is formed in a region between the left easily bendable portion 81 of the upper clamping portion 68A and the left easily bendable portion 81 of the lower clamping portion 68B in the front-rear direction. A left restricting portion 83 (an example of a bending restricting portion) is formed to be inclined rearward.

As shown in FIG. 11, the right side wall 35 of the wire connection portion 80 is formed so that the height in the vertical direction decreases from the front to the rear in the region where the upper holding projection 73A is formed. At the rear end edge of the right side wall 35 of the electric wire clamping portion, an obliquely lower portion is formed in a region between the right easily bendable portion 82 of the upper clamping portion 68A and the right easily bendable portion 82 of the lower clamping portion 68B in the front-rear direction. A right regulating portion 84 (an example of a bending regulating portion) is formed that slopes backward.

As shown in FIG. 12, with the slide portion 16 moved to the final locking position with respect to the wire connection portion 80, the upper side of the upper holding portion 68A pressed downward by the upper pressure portion 25A of the slide portion 16 is pushed downward. The right restricting portion 84 contacts the right edge of the holding protrusion 73A from below, thereby suppressing excessive downward deflection of the upper clamping portion 68A. Although not shown in detail, the left restricting portion 83 contacts the left edge of the upper clamping portion 68A from below, thereby suppressing excessive downward deflection of the upper clamping portion 68A.

As shown in FIG. 10, the rear end portion of the right side wall 35 of the wire connecting portion 80 is formed with a chamfered portion 85 that is inclined obliquely rightward and rearward. The chamfered portion 85 removes so-called burrs that are formed when the metal plate is pressed. A chamfered portion 85 is also formed on the rear end portion of the left side wall 34 of the wire connecting portion 80 .

Since the configuration other than the above is substantially the same as that of the first embodiment, the same members are denoted by the same reference numerals, and overlapping descriptions are omitted.

[Action and effect of the present embodiment]
Next, the effects of this embodiment will be described. According to this embodiment, the upper clamping portion 68A has an upper holding protrusion 73A formed by folding over the left edge 30 of the upper clamping portion 68A.

By providing the upper holding protrusion 73A at a portion of the upper clamping portion 68A that is not desired to be bent, it is possible to prevent the upper clamping portion 68A from bending at an unintended position. Since the upper holding protrusion 73A is formed by folding a metal plate, it is possible to suppress an increase in manufacturing cost.

According to the present embodiment, the left side wall 34 and the right side wall 35 of the terminal main body 65 come into contact with the upper clamping portion 68A when the upper pressing portion 25A presses the upper clamping portion 68A, thereby clamping the upper clamping portion 68A. A left restricting portion 83 and a right restricting portion 84 are provided to prevent excessive bending of the portion 68A.

Since the left restricting portion 83 and the right restricting portion 84 can suppress excessive bending of the upper clamping portion 68A, the upper clamping portion 68A can clamp the electric wire with appropriate pressure. Thereby, the electrical connection reliability between the terminal 62 and the electric wire 11 can be improved.

According to this embodiment, the terminal body 65 is formed with a left side wall 34 and a right side wall 35 rising from the left side edge 30 and the right side edge 31 of the upper clamping portion 68A, respectively. A chamfered portion 85 that widens and slopes rearward from the inside to the outside of the terminal body 65 is formed on the terminal body 65 .

When the core wire 13 of the electric wire 11 is inserted into the terminal main body 65 from behind in the extending direction of the electric wire 11 , the chamfered portion 85 guides the core wire 13 inward of the terminal main body 65 . As a result, the efficiency of connecting the terminal 62 and the electric wire 11 can be improved. Moreover, since it is possible to remove burrs generated when the metal plate is pressed, interference between the burrs and the core wire 13 can be suppressed.

<Embodiment 3>
Subsequently, a terminal body 95 according to a third embodiment of the present disclosure will be described with reference to FIGS. 13 to 14. FIG. As shown in FIG. 13, the upper clamping portion 18A provided in the terminal body 95 according to the present embodiment includes an upper first easily bendable portion 96 (an example of a first easily bendable portion) provided in a concave shape on the left edge 30. ) and an upper second easily bendable portion 97 (an example of a second easily bendable portion) provided in a concave shape on the right edge 31 . The upper first easily bendable portion 96 is formed rearward of the upper second easily bendable portion 97 . As a result, the upper first easily bendable portion 96 and the upper second easily bendable portion 97 are formed to be offset in the front-rear direction.

As shown in FIG. 14 , the lower clamping portion 18B includes a lower first easily bendable portion 98 (an example of the first easily bendable portion) provided on the left edge 32 and a lower easily bendable portion 98 provided on the right edge 33 . and a second easily bendable portion 99 (an example of a second easily bendable portion). The lower first easily bendable portion 98 is formed behind the lower second easily bendable portion 99 . As a result, the lower first easily bendable portion 98 and the lower second easily bendable portion 99 are formed to be offset in the front-rear direction.

Since the configuration other than the above is substantially the same as that of the first embodiment, the same members are denoted by the same reference numerals, and overlapping descriptions are omitted.

According to the present embodiment, the upper first easily bendable portion 96 is provided on the left edge 30 of the upper clamping portion 18A, and the upper second easily bendable portion 97 is provided on the right edge 31 of the upper clamping portion 18A. The upper first easily bendable portion 96 and the upper second easily bendable portion 97 are formed at positions shifted in the front-rear direction (the extending direction of the electric wire 11).

Since the upper first easily bendable portion 96 and the upper second easily bendable portion 97 are provided at positions shifted in the front-rear direction, the upper first easily bendable portion 96 and the upper second easily bendable portion 97 are arranged in the front-rear direction. , the upper clamping portion 18A is less likely to bend compared to the case where the upper clamping portion 18A is provided at the same position. As a result, the upper clamping portion 18A is prevented from easily bending due to vibration or the like, so that the upper clamping portion 18A can be prevented from bending at unintended times.

Further, according to the present embodiment, the left edge 32 of the lower clamping portion 18B is provided with the first lower easily bendable portion 98, and the right edge 33 of the lower clamping portion 18B is provided with the second lower easily bendable portion. A bent portion 99 is provided, and the lower first easily bendable portion 98 and the lower second easily bendable portion 99 are formed at positions shifted in the front-rear direction (extending direction of the electric wire 11).

Since the lower first easily bendable portion 98 and the lower second easily bendable portion 99 are provided at positions shifted in the front-rear direction, the lower first easily bendable portion 98 and the lower second easily bendable portion 99 are provided at the same position in the front-rear direction, the lower clamping portion 18B is less likely to bend. This prevents the lower holding portion 18B from being easily bent due to vibration or the like, so that it is possible to prevent the lower holding portion 18B from being bent at an unintended time.

<Embodiment 4>
[Terminal body 105]
Subsequently, a terminal body 105 according to a fourth embodiment of the present disclosure will be described with reference to FIGS. 15 to 20. FIG. As shown in FIG. 15, a lower holding projection 123B projecting upward is provided at the rear portion of the lower surface of the lower holding portion 118B.

The lower holding protrusion 123B extends in the front-rear direction of the lower clamping portion 118B (that is, in the extending direction of the electric wire 11). In the embodiment, the electric wire 11 is not shown in the drawing.), the portion protruding from the left edge (side edge) 132 along the wire 11 is folded in close contact with the upper surface of the lower clamping portion 118B. there is The right end portion of the lower holding portion 118B is provided so as not to protrude rightward from the right edge 133 of the lower holding portion 118B.

[Manufacturing process of terminal body 105]
Next, an example of the manufacturing process of the terminal body 105 according to this embodiment will be described. The manufacturing process of terminal body 105 is not limited to the following description.

A metal plate 140 is pressed into the shape shown in FIG. The shape of the metal plate member 140 shown in FIG. 16 is a shape in which a plurality of terminal bodies 105A before bending are connected to the carrier C via the connecting portions 154. As shown in FIG. The terminal body 105A is cut at the cutting position P and separated from the carrier C and the connecting portion 154 . As a result, the terminal body 105A assumes the shape shown in FIG.

Subsequently, as shown in FIG. 18, the upper holding projection 23A is folded over the upper clamping portion 18A, and the lower holding projection 123B is folded over the lower clamping portion 118B.

As shown in FIG. 19, the portion corresponding to the upper wall of terminal body 105 is bent. After that, as shown in FIG. 20, the portion corresponding to the left side wall 34 of the terminal body 105 is bent. Finally, the portion corresponding to the right side wall 35 of the terminal body 105 is bent. As described above, the terminal main body 105 is formed.

Since the configuration other than the above is substantially the same as that of the first embodiment, the same members are denoted by the same reference numerals, and overlapping descriptions are omitted.

According to the present embodiment, for example, like the first embodiment, the lower clamping portion 18B is formed by folding the metal plate at the side edge (for example, the rear edge 18C) intersecting the extending direction of the electric wire 11. In this configuration, when the wire 11 is pulled rearward, the lower holding projection 23B rubs against the wire 11, and the lower holding projection 23B is turned over rearward. In the above configuration, since the lower holding projection 123B is formed by folding at the left edge 132 of the lower clamping portion 118B along the extending direction of the electric wire 11, it is possible to prevent the lower holding projection 123B from being turned over. can be suppressed.

<Embodiment 5>
[Terminal body 205]
Subsequently, a terminal body 205 according to a fourth embodiment of the present disclosure will be described with reference to FIGS. 21 and 22. FIG.

[Rear receiving portion 253]
The lower clamping portion 218B has a rear receiving portion 253. As shown in FIG. The rear receiving portion 253 extends in the front-rear direction of the lower holding protrusion (holding protrusion) 223B (that is, in the extending direction of the electric wire 11). Therefore, in the present embodiment, the electric wire 11 is omitted from the drawing.). The rear receiving portion 253 is formed by bending upward a portion that protrudes rearward from the rear end of the lower holding protrusion 223B.

The rear receiving portion 253 and the lower holding protrusion 223B are opposed to each other in the front-rear direction, and are close to each other in close contact. The upper end position of the tip portion of the rear receiving portion 253 is the same as or slightly lower than the upper end position of the lower holding protrusion 223B. Thereby, when the core wire 13 of the electric wire 11 is inserted between the upper clamping portion 18A and the lower clamping portion 218B, the core wire 13 does not interfere with the distal end portion of the rear receiving portion 253 .

For example, when the electric wire 11 is pulled rearward, the lower holding projection 223B slides on the electric wire 11, and when the lower holding projection 223B is also pulled rearward by the electric wire 11, as shown in FIG. In addition, the lower holding protrusion 223B receives the force F rearward. In such a case, the rear receiving portion 253 contacts the lower holding protrusion 223B from behind.

Since the configuration other than the above is substantially the same as that of the fourth embodiment, the same members are denoted by the same reference numerals, and overlapping descriptions are omitted.

According to the present embodiment, when the electric wire 11 is pulled rearward and the lower holding projection 223B slides on the electric wire 11 and receives a rearward force F, the rear receiving portion 253 is pulled toward the lower holding projection. 223B from behind, the rearward displacement of the lower holding protrusion 223B can be suppressed.

<Other embodiments>
The present disclosure is not limited to the embodiments described by the above description and drawings, and the following embodiments are also included in the technical scope of the technology disclosed in this specification.

(1) The terminal 12 may be configured to have one or three or more holding portions.

(2) Terminal 12 may be a male terminal having a male tab.

(3) In the fourth embodiment, the lower holding projection 123B is configured to protrude from the left edge 132 of the lower clamping portion 118B, but the present invention is not limited to this. , may be configured to protrude from the right edge of the lower holding portion.

10, 60: Electric wire with terminal 11: Electric wire 12, 62: Terminal 13: Core wire 14: Insulating coating 15, 65, 95, 105, 105A, 205: Terminal main body 16: Sliding part 17: Cylinder part 18A, 68A: Upper holding Parts 18B, 18C, 68B, 118B, 218B: Lower clamping parts 20, 80: Wire connection parts 23A, 73A: Upper holding projections (an example of holding projections)
23B, 123B, 223B: Lower holding protrusions (an example of holding protrusions)
25A: Upper pressurizing portion 25B: Lower pressurizing portion 26: Temporary locking receiving portion 27: Final locking receiving portion 28: Locking protrusions 30, 32, 132: Left edges 31, 33, 133: Right edge 34: Left side wall 35: Right side walls 40, 140: Metal plate material 45: Jig 46: Jig contact portion 47: Guiding portions 50A, 50B: Edge 51: Left bendable portion 52: Right bendable portion 83: Left regulating portion (bend Example of regulatory department)
84: Right restricting part (an example of bending restricting part)
85: Chamfered portion 96: Upper first easily bendable portion 97: Upper second easily bendable portion 98: Lower first easily bendable portion 99: Lower second easily bendable portion 154: Connecting portion 253: Rear receiving portion C: Carrier P: cutting position

Claims (11)

A terminal connected to the front end in the extending direction of the electric wire,
a terminal body having a clamping portion that clamps the electric wire;
a sliding portion that can slide with respect to the terminal body along the extending direction of the electric wire;
The sliding portion has a pressurizing portion that presses the holding portion toward the electric wire,
The terminal main body is formed of a bent metal plate material,
The holding portion has a holding protrusion that protrudes toward the electric wire and contacts the electric wire, and the holding protrusion is formed by folding the metal plate material. the terminal body has a plurality of the holding portions, each of the plurality of holding portions has the holding projection;
2. The terminal according to claim 1, wherein said holding protrusions of said plurality of holding portions are provided at positions shifted in the extending direction of said electric wire. 3. The terminal according to claim 1, wherein said holding protrusion is formed by folding said metal plate material at a side edge along the extending direction of said electric wire. 3. The terminal according to claim 1, wherein said holding protrusion is formed by folding said metal plate material at a side edge crossing the extending direction of said electric wire. 4. The terminal according to claim 3, wherein said clamping portion includes a rear receiving portion projecting rearward of said holding projection in the extending direction of said electric wire. 6. The terminal according to claim 5, wherein said rear receiving portion protrudes toward said electric wire . 7. An easily bendable portion narrowly formed in a direction intersecting the extending direction of the electric wire is formed on at least one side edge of the holding portion. terminals described in . The easily bendable portion includes a first easily bendable portion provided on one side edge of the holding portion and a second easily bendable portion provided on the other side edge,
8. The terminal according to claim 7, wherein said first easily bendable portion and said second easily bendable portion are formed at positions shifted in the extending direction of said electric wire . The terminal body is provided with a bending restricting portion that comes into contact with the holding portion when the pressurizing portion presses the holding portion and suppresses excessive bending of the holding portion. A terminal according to any one of claims 1 to 8. A side wall is formed on the terminal main body so as to rise from a side edge of the clamping portion, and the side wall widens and slopes rearward in the direction in which the wire extends at a rear end portion in the direction in which the wire extends. 10. A terminal according to any preceding claim, wherein a chamfer is formed. a terminal according to any one of claims 1 to 10;
and an electric wire connected to the terminal.

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