JP2013109873A - Chain-like terminal and manufacturing method of terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a chain-like terminal capable of coping with a plurality of types of terminal fitting while reducing the space for storage, and to provide a manufacturing method of terminal for manufacturing a terminal fitting by using the chain-like terminal.SOLUTION: A chain-like terminal 1 includes an electric connection part 10 for connection with a mating terminal, and a wire crimp part 20 formed integrally with the electric connection part 10 and being crimped fixedly to a wire W. The electric connection part 10 has a chain-like formation in a direction orthogonal to the extension direction of the wire W being fixed to the wire crimp part 20.

Description

  The present invention relates to a chain terminal including an electrical connection part and a wire crimping part, and a terminal manufacturing method for manufacturing a terminal fitting using the chain terminal.

  Conventionally, terminal fittings that are clamped and fixed to the ends of electric wires have been manufactured by punching a chained terminal formed of a long flat plate material, and various proposals have been made for chained terminals. ing.

  For example, the chain terminal includes an electrical connection portion connected to the mating terminal and a wire crimp portion fixed to the electric wire by crimping, and a chain is provided between the electrical connection portion and the wire crimp portion. (For example, refer to Patent Document 1). Since these chained terminals are continuous in a chain, the chained terminals can be easily stored in a factory or the like as compared with the case where individual terminal fittings are stored.

JP-A-5-326055

  However, in the conventional chained terminal described above, it is necessary to stock and store a plurality of types of chained terminals in a factory or the like in order to correspond to a plurality of types of terminal fittings in accordance with the standard or part number of the electrical connection portion. . That is, in order to correspond to a plurality of types of terminal fittings, the storage space for the chained terminals increases.

  Then, this invention aims at provision of the terminal manufacturing method which manufactures a terminal metal fitting using the chained terminal which can respond to several types of terminal metal fittings, and can reduce storage space, and this chained terminal.

  In order to solve the above-described problems, the present invention has the following features. First, the first feature of the present invention is that an electrical connection part (electrical connection part 10) connected to a mating terminal and an electrical wire crimping part (electrical wire) formed integrally with the electrical connection part and fixed to the electrical wire by crimping. A chained terminal (chained terminal 1) including the crimping part 20), wherein the electrical connection part is orthogonal to the extending direction of the wire fixed to the wire crimping part (the flow direction during manufacture). MD) is formed in a chain form.

  According to this feature, the electrical connection portion is formed in a chain form with respect to the orthogonal direction orthogonal to the extending direction of the electric wire. That is, since the electrical connection portions are in a chain shape, a terminal fitting having a desired shape can be manufactured in accordance with the standard or product number of the electrical connection portion by forming the electrical connection portions in a desired shape. For this reason, it can respond to multiple types of terminal metal fittings.

  In addition, it is not necessary to stock and store a plurality of types of chained terminals in accordance with the standards and product numbers of electrical connection parts in factories and the like, and the storage space can be reduced. Furthermore, waste of chained terminals such as no need for inventory is eliminated, contributing to a reduction in manufacturing costs.

  A second feature of the present invention relates to the first feature of the present invention, and is connected to the wire crimping portion and is formed in a chain shape with respect to the orthogonal direction (crimping portion side chaining portion). 30), and the crimping portion side chain portion is separated from the wire crimping portion when the electrical connection portion is separated into a desired shape.

  According to this feature, the crimping part side chain part is connected to the electric wire crimping part. Thereby, at the time of manufacture of a terminal metal fitting, an electric wire crimping part is positioned with respect to a manufacturing flow direction, and it can prevent that an electric wire crimping part delays with respect to a manufacturing flow direction. For this reason, an electric wire can be reliably attached to an electric wire crimping part, and a yield etc. can be reduced.

  A third feature of the present invention is that a terminal is formed using a chain-like terminal including an electrical connection portion connected to a counterpart terminal, and a wire crimping portion formed integrally with the electrical connection portion and crimped and fixed to an electric wire. A terminal manufacturing method for manufacturing a metal fitting, wherein a long flat plate member is connected to the flow direction during manufacture at predetermined intervals in a state where the electrical connection portions are chained with respect to the flow direction during manufacture. The gist includes a crimping part forming step for forming the wire crimping part, and a terminal manufacturing process for manufacturing the terminal fitting by separately forming the chain-like electrical connection part into a desired shape.

  According to this feature, in the terminal manufacturing process, the chain-like electrical connection portions are separately formed in a desired shape, and the terminal fitting is manufactured. Thereby, since a desired terminal metal fitting can be manufactured according to the standard of an electrical connection part, a product number, etc., it can respond to a plurality of kinds of terminal metal fittings. In addition, it is not necessary to stock and store a plurality of types of chained terminals in accordance with the standards and product numbers of electrical connection parts in factories and the like, and the storage space can be reduced. Furthermore, waste of chained terminals such as no need for inventory is eliminated, contributing to a reduction in manufacturing costs.

  A fourth feature of the present invention is related to the third feature of the present invention. In the crimping portion forming step, the crimping portion side chain portion connected to the electric wire crimping portion is chained with respect to the flow direction during manufacture. The gist is to form the wire crimping portion in the state described above.

  According to this feature, in the crimping part forming step, the wire crimping part is formed in a state where the crimping part side chain part is in a chained state. Thereby, at the time of manufacture of a terminal metal fitting, an electric wire crimping part is positioned with respect to a manufacturing flow direction, and it can prevent that an electric wire crimping part delays with respect to a manufacturing flow direction. For this reason, an electric wire can be reliably attached to an electric wire crimping part, and a yield etc. can be reduced.

  According to the features of the present invention, it is possible to provide a chained terminal capable of dealing with a plurality of types of terminal fittings and reducing storage space, and a terminal manufacturing method for producing a terminal fitting using the chained terminals. .

FIG. 1 is a perspective view showing a storage state of the chain terminal 1 according to the present embodiment. FIG. 2 is a perspective view showing a part of the chain terminal 1 according to the present embodiment. FIG. 3 is a plan view showing a part of the chain terminal 1 according to the present embodiment. FIG. 4 is a side view showing a part of the chain terminal 1 according to the present embodiment. FIG. 5 is a plan view showing the chain terminal 1 for explaining the terminal manufacturing method according to the present embodiment (part 1). FIG. 6: is a top view which shows the chain terminal 1 for demonstrating the terminal manufacturing method which concerns on this embodiment (the 2).

  Next, an embodiment of a chain terminal according to the present invention and a terminal manufacturing method for manufacturing a terminal fitting using the chain terminal will be described with reference to the drawings. Specifically, (1) the structure of the chain terminal, (2) the terminal manufacturing method, (3) the operation and effect, and (4) other embodiments will be described.

  In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, it should be noted that the drawings are schematic and ratios of dimensions and the like are different from actual ones.

  Accordingly, specific dimensions and the like should be determined in consideration of the following description. Moreover, the part from which the relationship and ratio of a mutual dimension differ also in between drawings may be contained.

(1) Configuration of Chained Terminal First, the configuration of the chained terminal 1 according to the present embodiment will be described with reference to the drawings. FIG. 1 is a perspective view showing a storage state of the chain terminal 1 according to the present embodiment. FIG. 2 is a perspective view showing a part of the chain terminal 1 according to the present embodiment. FIG. 3 is a plan view showing a part of the chain terminal 1 according to the present embodiment. FIG. 4 is a side view showing a part of the chain terminal 1 according to the present embodiment.

  The chain terminal 1 is used for manufacturing a terminal fitting 2 (see FIG. 5) that is crimped and fixed to the end of the electric wire W. As shown in FIG. 1, the chain terminal 1 is formed from a long flat plate material and stored in a reel-like state in a factory or the like.

  As shown in FIGS. 1 to 4, the chain terminal 1 is integrally formed with the electrical connection portion 10 connected to the counterpart terminal, the wire crimping portion 20 that is crimped and fixed to the electric wire W, and the wire crimping portion 20. The crimping part side chain part 30 is provided.

  The electrical connection portion 10 is formed in a chain shape with respect to the direction orthogonal to the extending direction of the electric wire W fixed to the wire crimping portion 20 (the flow direction MD during manufacture (see FIG. 4)), and has a desired shape. Separately formed. An electric wire crimping portion 20 is provided on the opposite side of the electrical connection portion 10 (the rear end side of the chain terminal 1).

  The wire crimping portion 20 is formed integrally with the electrical connecting portion 10. The wire crimping portion 20 includes a core wire crimping portion 21 and a covering material crimping portion 22 from the front end side to the rear end side of the chain terminal 1.

  The core wire crimping portion 21 is crimped and fixed (clamped) to the core wire W1 of the electric wire W. The core wire crimping portion 21 is formed with a groove portion 21 </ b> A that is recessed in the thickness direction of the core wire crimping portion 21. Thereby, the positional deviation of the core wire W1 is prevented by the contact with the groove portion 21A, and the contact area between the core wire crimping portion 21 and the core wire W1 is increased, so that the electrical connection between the terminal fitting 2 and the core wire W1 can be secured.

  The coating material crimping portion 22 is connected to the core wire crimping portion 21 and is crimped and fixed to the coating material W2 covering the core wire W1 of the electric wire W. The covering material crimping portion 22 and the core wire crimping portion 21 described above are formed to rise in a U shape when the wire crimping portion 20 is punched from a long flat plate material.

  The crimping part side chain part 30 is connected to the electric wire crimping part 20 (covering material crimping part 22), and is formed in a chain shape with respect to the orthogonal direction (flow direction MD during manufacture (see FIG. 4)). The crimping part side chain part 30 is separated from the electric wire crimping part 20 when the electrical connection part 10 is separated into a desired shape.

  In such a chain terminal 1, the chain terminal 1 flows along the flow direction MD at the time of manufacture by a feed mechanism (not shown), and the terminal fitting 2 is manufactured by the terminal manufacturing apparatus 100. As shown in FIG. 4, the terminal manufacturing apparatus 100 includes an upper mold 110 located above the chain terminal 1 and a lower mold 120 located below the chain terminal 1.

  The upper mold 110 includes a punching unit 110A that punches the electrical connection unit 10 into a desired shape, and a crimping unit 110B that crimps and fixes the electric wire crimping unit 20 to the electric wire W. The punching unit 110A includes a terminal tip mold 111 for processing the electrical connection unit 10 into a desired shape (for example, a circular shape) (see FIG. 5).

(2) Terminal manufacturing method Next, the terminal manufacturing method which manufactures the terminal metal fitting 2 using the chained terminal 1 mentioned above is demonstrated, referring drawings. 5 and 6 are plan views showing the chain terminal 1 for explaining the terminal manufacturing method according to the present embodiment.

  First, in the terminal manufacturing method, the wire crimping portion is formed at a predetermined interval with respect to the flow direction MD during manufacture in a state where the electrical connection portion 10 is formed in a chain shape with respect to the flow direction MD during manufacture. The crimping | compression-bonding part formation process which forms 20 and the terminal manufacturing process which isolate | separates and forms the chain-shaped electrical connection part 10 in a desired shape, and manufactures the terminal metal fitting 2 are included.

  FIG. 5 shows a state where the crimping part forming step is completed. That is, in the crimping portion forming step, the wire crimping portion 20 is formed to rise in a U shape so that the wire W can be easily crimped and fixed to the wire crimping portion 20 (the core crimping portion 21 and the covering material crimping portion 22). Is done.

  Then, as shown in FIG. 5, in the connection portion forming step, the chain-like electrical connection portions 10 are separated and formed into a desired shape (circular shape) by the terminal manufacturing apparatus 100 (punching processing portion 110 </ b> A) described above. At the same time, the electric wire W is caulked and fixed to the electric wire crimping portion 20 by the terminal manufacturing apparatus 100 (caulking molding portion 110B). At this time, the crimping part side chain part 30 is separated from the wire crimping part 20 by the terminal manufacturing apparatus 100. As a result, the terminal fitting 2 is manufactured from the chain terminal 1.

  Here, as shown in FIG. 5, the terminal fitting 2 has a hole 12 formed in a disk-shaped main body 11. Note that the terminal fitting 2 does not necessarily have the shape shown in FIG. 5. For example, as shown in FIG. 6, a claw portion 13 in which the tip 14 is bent from the main body portion 11 may be formed. In this case, the terminal fitting 2 can be formed in a desired shape only by changing the terminal tip die 111.

(3) Action / Effect In the present embodiment described above, the electrical connection portion 10 is formed in a chain form with respect to the orthogonal direction of the electric wire W (the flow direction MD during manufacture). That is, since the electrical connection portion 10 is in a chain shape, the terminal fitting 2 having a desired shape can be manufactured in accordance with the standard or product number of the electrical connection portion 10 by separating and forming the desired shape. For this reason, it can respond to a plurality of types of terminal fittings 2.

  In addition, it is not necessary to stock and store a plurality of types of chained terminals 1 in accordance with the standard and product number of the electrical connection unit 10 in a factory or the like, and the storage space can be reduced. Further, the chained terminals 1 are not wasted such that no inventory is required, which contributes to a reduction in manufacturing costs.

  In the present embodiment, the crimping part side chain part 30 is connected to the electric wire crimping part 20. Thereby, at the time of manufacture of the terminal fitting 2, the wire crimping portion 20 is positioned with respect to the manufacturing flow direction MD, and the wire crimping portion 20 can be prevented from being delayed with respect to the manufacturing flow direction MD. For this reason, the electric wire W can be reliably attached to the electric wire crimping part 20, and a yield etc. can be reduced.

  In the present embodiment, the upper mold 110 in the terminal manufacturing apparatus 100 includes a punching unit 110A that punches the electrical connection unit 10 into a desired shape, and a caulking molding that crimps and fixes the electric wire crimping unit 20 to the electric wire W. 110A, and the punching section 110A includes a terminal tip mold 111 for processing the electrical connection section 10 into a desired shape (for example, a circular shape). Thereby, it is not necessary to produce a plurality of types of upper molds 110 in accordance with the shape of the electrical connection portion 10, and various types of terminal fittings 2 can be manufactured by changing only the terminal tip mold 111. For this reason, the production cost of the upper mold 110 can be reduced, which contributes to the reduction of the manufacturing cost of the terminal fitting 2.

(4) Other Embodiments As described above, the contents of the present invention have been disclosed through the embodiments of the present invention. However, it is understood that the descriptions and drawings constituting a part of this disclosure limit the present invention. Should not. From this disclosure, various alternative embodiments, examples, and operational techniques will be apparent to those skilled in the art.

  For example, the embodiment of the present invention can be modified as follows. Specifically, the chain terminal 1 has been described as being stored in a reel-like state in a factory or the like, but is not limited thereto, and may be stored by other methods. Good.

  Moreover, about the structure of the electric wire crimping part 20, a shape, etc., it is not limited to what was demonstrated by embodiment, What is necessary is just a well-known electric wire crimping part. Similarly, the configuration, shape, and the like of the terminal manufacturing apparatus 100 are not limited to those described in the embodiment, and any known apparatus may be used.

  As described above, the present invention naturally includes various embodiments that are not described herein. Therefore, the technical scope of the present invention is determined only by the invention specifying matters according to the scope of claims reasonable from the above description.

DESCRIPTION OF SYMBOLS 1 ... Chain terminal 2 ... Terminal metal fitting 10 ... Electrical connection part 20 ... Wire crimping part 21 ... Core wire crimping part 22 ... Cover material crimping part 30 ... Crimping part side chaining part 100 ... Terminal manufacturing apparatus 110 ... Upper metal mold | die 110A ... Striking Punching part 110B ... Clamping molding part 111 ... Terminal tip mold 120 ... Lower mold W ... Electric wire MD ... Manufacturing flow direction

Claims (4)

An electrical connection connected to the mating terminal;
A chain-like terminal that is integrally formed with the electrical connection portion and includes an electric wire crimping portion that is crimped and fixed,
The electrical connection part is a chain terminal formed in a chain form with respect to an orthogonal direction orthogonal to an extending direction of the electric wire fixed to the electric wire crimping part. The chain terminal according to claim 1,
The crimping part side chain part connected with the electric wire crimping part and formed in a chain shape with respect to the orthogonal direction is further provided,
The said crimping | crimp part side chain | linkage part is isolate | separated from the said electric wire crimping | compression-bonding part, when the said electrical-connection part is isolate | separated into a desired shape. A terminal manufacturing method for manufacturing a terminal fitting using a chain-like terminal comprising an electrical connection portion connected to a mating terminal and an electrical wire crimping portion formed integrally with the electrical connection portion and crimped and fixed. And
A crimping portion forming step of forming the wire crimping portion at a predetermined interval with respect to the flow direction during manufacture on a long plate material in a state where the electrical connection portions are chained with respect to the flow direction during manufacture. When,
The terminal manufacturing method characterized by including the terminal manufacturing process which manufactures the said terminal metal fitting by isolate | separating and forming the said chain-shaped electrical connection part in a desired shape. The terminal manufacturing method according to claim 3,
In the crimping part forming step, the wire crimping part is formed in a state where the crimping part side chain part connected to the wire crimping part is chained with respect to the flow direction during the production. Method.

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