WO2017169255A1

WO2017169255A1 - Cable terminal treatment structure and cable terminal treatment method

Info

Publication number: WO2017169255A1
Application number: PCT/JP2017/005823
Authority: WO
Inventors: 清貴浦下; 信博藤尾; 川上　斉徳; 木下　淳一
Original assignee: タツタ電線株式会社
Priority date: 2016-03-30
Filing date: 2017-02-17
Publication date: 2017-10-05
Also published as: JP2017184477A; CN108780984A; TW201810847A; JP6598718B2

Abstract

Provided are a cable terminal treatment structure and a cable terminal treatment method that facilitate a cable terminal treatment. The tip of an elastic alloy wire (3) exposed from a sheath (4) at the terminal part of a cable (10) is fixed to, via an insulating core wire (6) lower in elasticity than the elastic alloy wire (3), a substrate (8) to which an insulating core wire (2a) is connected.

Description

Cable terminal processing structure and cable terminal processing method

The present invention relates to a terminal processing structure of a cable, in particular, an electric wire and an optical fiber cable, and a cable terminal processing method.

Electric wires for supplying power to medical equipment (for example, an electric knife), optical fiber cables and the like (hereinafter simply referred to as “cables”) are referred to as high-temperature and high-pressure treatment (hereinafter referred to as “autoclave treatment”) before use. ) Is often applied. Generally, when the above cable is autoclaved, it is (1) manually wound, (2) taped so that it does not come apart, (3) put into a high-pressure steam sterilizer, (4) high temperature Left in a high pressure environment for a certain period of time. The cable is easily put into the high-pressure steam sterilizer through the operations (1) and (2).

However, the cable is likely to be bent due to the above operations (1) and (2). In the case where the cable is bent, the cable end is connected manually to a medical device or the like after the cable is manually returned.

Patent documents 1 to 3 disclose cables that are difficult to bend.

In the endoscope catheter of Patent Document 1, a cored wire is embedded in a flexible tube.

In the composite electric wire of Patent Document 2, a conductive wire and a superelastic wire are covered with an insulating layer.

In the cord wire of Patent Document 3, a conductive wire and a linear superelastic alloy wire are covered with an insulating layer.

JP 2001-224692 A (released August 21, 2001) JP 04-370606 (published on December 24, 1992) JP 05-347109 A (released on December 27, 1993)

However, none of the cables of Patent Documents 1 to 3 is easy to process the cable end. Hereinafter, the terminal processing of electric wires will be described as an example.

Usually, the terminal processing of the electric wire is performed by the following procedures (1) to (3).
(1) Strip the sheath from the cable and take out the insulation core.
(2) The insulator is stripped from the insulating core wire, and the conductor in the insulating core wire is exposed.
(3) Connect the conductor to a connector terminal or the like using soldering or the like.

The cables of Patent Documents 1 to 3 are all provided with an elastic body. While this elastic body reduces the bending bend of the cable, it may damage the insulation core wire during the cable end treatment. For example, when the tip of the elastic body breaks through the insulators of the plurality of insulation core wires during terminal processing, the conductors embedded in the plurality of insulation core wires may come into contact with each other and short-circuit. .

In this regard, Patent Documents 1 to 3 make no mention of cable terminal processing and problems that may occur during cable terminal processing.

The present invention has been made in view of the above problems, and an object thereof is to realize a cable terminal processing structure and a cable terminal processing method that facilitate cable terminal processing.

In order to solve the above-described problems, a cable terminal processing structure according to the present invention includes a core selected from an insulating core and an optical fiber, an elastic alloy wire along the core, the core and And a sheath covering the elastic alloy wire, wherein a distal end portion of the elastic alloy wire exposed from the sheath at a terminal portion of the cable is a low elastic modulus wire having a lower elastic modulus than the elastic alloy wire. In this configuration, the core wire is fixed to the base body to be connected.

Generally, elastic alloy wires have a strong repulsive force. Therefore, for example, in the state where the elastic alloy wire is connected to the connector terminal using the crimp terminal, the following problem may occur.

Specifically, the elastic alloy wire bends when a certain force is applied to the elastic alloy wire in the vicinity of the connecting portion between the elastic alloy wire and the connector terminal. Then, the elastic alloy wire may come off from the connector terminal due to the repulsive force that the elastic alloy wire has. When the elastic alloy wire is disconnected from the connector terminal, the tip of the elastic alloy wire may damage the insulating core fiber or the optical fiber core wire.

In this respect, the cable terminal processing structure according to the present invention can reduce the occurrence of such a problem for the following reason.

Consider the case where a certain force is applied to the low elastic modulus wire in the vicinity of the fixed portion where the low elastic modulus wire and the base are fixed. At this time, since the low elastic modulus wire has a lower elastic modulus than the elastic alloy wire, when the same force is applied, the low elastic modulus wire exhibits a strong repulsive force like the elastic alloy wire. There is nothing.

Therefore, even if any force is applied to the low elastic modulus wire near the fixing portion where the low elastic modulus wire and the base are fixed, the fixed state between the low elastic modulus wire and the base is released. It becomes difficult to be done. Therefore, the fixed state between the low elastic modulus wire and the base body is released, and the possibility that the tip of the low elastic modulus wire damages the insulating core or the optical fiber core can be reduced.

In order to solve the above problems, a cable terminal processing method according to the present invention includes a core selected from an insulating core and an optical fiber, an elastic alloy wire along the core, the core and A cable end treatment method comprising: a sheath covering the elastic alloy wire, the step of exposing the elastic alloy wire from the end portion of the cable; and the exposed elastic alloy wire from the elastic alloy wire. The method includes a step of fixing one end of a low elastic modulus wire having a low elastic modulus and a step of fixing the other end of the low elastic modulus wire to a base body to which the core wire is connected.

According to the above method, the same effect as the cable terminal processing structure is obtained.

According to the present invention, it is possible to realize a cable terminal processing structure and a cable terminal processing method that facilitate cable terminal processing.

It is a figure which shows the cable terminal processing structure which concerns on this embodiment. It is sectional drawing of the cable which concerns on this embodiment. It is sectional drawing of the cable which concerns on this embodiment. It is sectional drawing of the cable which concerns on this embodiment. It is a figure which shows the terminal part of the cable which concerns on this embodiment. It is a figure which shows the flowchart of the cable terminal processing method which concerns on this embodiment.

Hereinafter, this embodiment will be described with reference to the drawings. In the following description, the same parts and components are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated.
Embodiment
Hereinafter, the terminal processing structure 1 of the cable 10 will be described with reference to FIG. Note that the cable 10 according to the present embodiment may be an electric wire or an optical fiber cable. That is, the cable 10 only needs to include any one of the cores selected from the insulated core and the optical fiber. Below, the cable 10 is demonstrated as what is an electric wire.

First, for convenience of explanation, the cable 10 will be described with reference to FIG.

[Cable 10]
FIG. 2 is a cross-sectional view of the cable 10. The cable 10 includes an insulated core wire (core wire) 2a, an insulated core wire (core wire) 2b, an insulated core wire (core wire) 2c, an elastic alloy wire 3, and a sheath 4.

As shown in FIG. 2, when viewed in a cross section perpendicular to the length direction of the cable 10, the cross section of the cable 10 is circular (in the following description, “cross section” refers to the length direction of the cable 10. Refers to a cross section in a direction perpendicular to). The cross section of the cable 10 is actually not circular but substantially circular. Based on this, “circular” includes “substantially circular” (if the cable manufacturing process is intended to make the cable cross-section circular, the manufactured cable has a circular cross-section. In other words, it is formed.) In the following description, for convenience of explanation, it is assumed that the cross section of the cable 10, and further, a cable 11 and a cable 12 described later are formed in a circular shape.

The insulating core wire 2a, the insulating core wire 2b, and the insulating core wire 2c each include a conductor 21 and an insulating coating 22. The conductor 21 is covered (covered) with an insulating coating 22 that is an insulator. The insulated core wire 2a, the insulated core wire 2b, and the insulated core wire 2c may be general covered electric wires.

Note that the cable 10 may have one or more (the number is arbitrary) insulated core wires (see the cable 11 and the cable 12 described later).

The elastic alloy wire 3 is embedded in the cable 10 along the insulating core wire 2a, the insulating core wire 2b, and the insulating core wire 2c. Even if the elastic alloy wire 3 is bent by an external force, it returns to its original state (rich in elasticity).

As shown in FIG. 2, the elastic alloy wire 3 is located at the center of the cable 10 in the cross section of the cable 10. The “center” does not have to be exactly the center, but may be substantially the center. Here, “the elastic alloy wire 3 is located at the center of the cable 10” means that the center of the cable 10 is included in a region occupied by the elastic alloy wire 3 when the cable 10 is viewed in cross section. Say that line 3 is arranged in cable 10.

The elastic alloy wire 3 may not be located at the center of the cable 10 (see the cable 12 described later), but is preferably located at the center of the cable 10. This is because (1) when the cable 10 is bent, the possibility that the elastic alloy wire 3 breaks through the sheath 4 and is exposed is suppressed. (2) The cable 10 is easily bent. (3) The cable 10 is bent. This is because (4) the repulsive force of the elastic alloy wire 3 does not become too large.

The insulating core wire 2a, the insulating core wire 2b, and the insulating core wire 2c may or may not be twisted to the elastic alloy wire 3, but are preferably twisted. This is because when the insulating core wire 2a, the insulating core wire 2b, and the insulating core wire 2c are twisted around the elastic alloy wire 3, the flexibility of the cable 10 is improved and the cable 10 is easily bent. Because. The same applies to the cable 11 and the cable 12 described later.

As the elastic alloy wire 3, it is desirable to use the following alloy (1) or (2). In addition, the following percentage display shows atomic composition percentage.
(1) Ni-Ti alloy
(a) Ni: 49.5-51.5%, (b) Remaining: Binary alloy made of Ti, or
(a) Ni: 49.5-51.5%, (b) One or two of Fe, Co, Cr, V, Pd, and Al: 1% or less in total, (c) Remaining: From Ti Ni-Ti alloy.

In the Ni—Ti binary alloy, when Ni is less than 49.5%, characteristics as a superelastic alloy cannot be obtained, and when Ni exceeds 51.5%, workability deteriorates.

The third element Fe, Co, Cr, V, Pd, or Al is added by substituting Ni and / or Ti with these third elements, and thereby any of the properties of the strength, corrosion resistance, and workability of the wire rod Can be improved. However, if the total of one or two of Fe, Co, Cr, V, Pd, and Al exceeds 1.0% of the whole, workability deteriorates.
(2) Ni-Ti-Cu alloy
(a) Ni: 38.0-52.0%, (b) Cu: 5.0-12.0%, (c) One or more of Fe, Co, Cr, V, Pd, Al : Ni-Ti-Cu alloy composed of 2.0% or less in total, (d) remaining: Ti.

In a Ni—Ti—Cu alloy containing 5.0 to 12.0% of Cu, Cu can be replaced with Ni and / or Ti to reduce material costs. However, if Ni is less than 38.0%, superelastic characteristics cannot be obtained, and if it exceeds 52.0%, workability deteriorates. If the Cu content is less than 5.0%, the cost reduction effect is reduced. If the Cu content exceeds 12.0%, the elastic alloy wire 3 does not exhibit superelastic characteristics. In this case, the third elements such as Fe, Co, Cr, V, Pd, and Al may be contained up to 2.0% in total.

The sheath 4 covers (covers) the insulating core wire 2a, the insulating core wire 2b, the insulating core wire 2c, and the elastic alloy wire 3, and prevents the insulating coating 22 from being damaged or flooded. The sheath 4 may be a commonly used one. However, the sheath 4 is preferably formed of a vinyl chloride resin, a styrene resin, or a silicon resin. Even when vinyl chloride resin, styrene resin, and silicon resin are exposed to a high temperature state of 100 ° C. to 150 ° C. by ordinary autoclave treatment, a part of the resin is softened and the resins adhere to each other. It is because the problem of doing does not arise.

Usually, autoclaving of electric wires and optical cables is performed under the following conditions.
1. Treatment temperature: 100 degrees to 150 degrees 2. 2. Processing time: 1 minute or more and 30 minutes or less Processing pressure: 1.0 MPa or more and 4.8 MPa or less [Modification of Cable 10]
Hereinafter, a cable 11 that is a modification of the cable 10 will be described with reference to FIG. 3, and a cable 12 that is a modification of the cable 10 will be described with reference to FIG. 4. In addition, the description about the already demonstrated content is abbreviate | omitted.

FIG. 3 is a cross-sectional view of the cable 11 according to the present embodiment. As shown in FIG. 3, the cable 11 includes an insulating core wire 2 a, an elastic alloy wire 3, and a sheath 4. The elastic alloy wire 3 is located at the center of the cable 11. The insulating core wire 2 a is embedded in the cable 11 along the elastic alloy wire 3.

FIG. 4 is a cross-sectional view of the cable 12 according to the present embodiment. As shown in FIG. 4, the cable 12 includes an insulating core wire 2 a, an elastic alloy wire 3, and a sheath 4. In the cable 12, the insulating core wire 2 a is located at the center of the cable 12, and the elastic alloy wire 3 is not located at the center of the cable 12.

Thus, in the present embodiment, the number of the insulated core wires may be one or more. The elastic alloy wire 3 may be located at the center of the cable or may not be located at the center of the cable. Furthermore, in this embodiment, neither the insulation core wire nor the elastic alloy wire 3 need be located at the center of the cable.

However, when the elastic alloy wire 3 is not positioned at the center of the cable, the cable bending moment increases as the distance from the center increases, making it difficult to bend the cable by hand. Further, even when a plurality of elastic alloy wires 3 are provided on the cable, it is difficult to bend the cable by hand.

[Terminal processing structure 1]
Subsequently, the terminal processing structure 1 according to the present embodiment will be described with reference to FIGS. 1 and 5. In addition, although the terminal processing structure 1 of FIG. 1 uses the cable 10, the cable 11 or the cable 12 may be used.

First, FIG. 5 will be described. FIG. 5 is a diagram illustrating a terminal portion of the cable 10. 5, the sheath 4 is peeled off from the cable 10, and the insulating core wire 2 a, the insulating core wire 2 b, the insulating core wire 2 c, and a part of the elastic alloy wire 3 are exposed to the outside. Yes. Further, the insulation coating 22 is peeled off from the distal end portions of the insulating core wire 2a, the insulating core wire 2b, and the insulating core wire 2c, and the conductors 21 of the insulating core wire 2a, the insulating core wire 2b, and the insulating core wire 2c are externally connected. Is exposed.

The degree to which the sheath 4 is peeled off from the cable 10 and the degree to which the insulating coating 22 is peeled off from the insulating core wire 2a, the insulating core wire 2b, and the insulating core wire 2c may be arbitrarily determined.

Next, the terminal processing structure 1 of the cable 10 will be described with reference to FIG. FIG. 1 is a diagram showing a terminal processing structure 1 of a cable 10. The terminal processing structure 1 includes an insulating core wire 2a, an insulating core wire 2b, an insulating core wire 2c, an elastic alloy wire 3, a sheath 4 (not shown), a crimping sleeve 5, an insulating core wire (low elastic modulus). A wire rod) 6 and a substrate (base body) 8.

The crimp sleeve 5 secures the elastic alloy wire 3 and the insulating core wire 6. The crimping sleeve 5 fixes the elastic alloy wire 3 and the insulating core wire 6 by applying physical pressure, and may be a general crimping sleeve.

As a method for fixing the elastic alloy wire 3 and the insulating core wire 6, the elastic alloy wire 3 and the insulating core wire 6, in which an adhesive tape is wound around the elastic alloy wire 3 and the insulating core wire 6 instead of the crimping sleeve, are used. A method of welding / screwing is also conceivable. However, it is preferable that the elastic alloy wire 3 and the insulating core wire 6 are fixed to each other by the crimping sleeve 5 in terms of short working time and easy work.

The insulating core wire 6 is connected to the elastic alloy wire 3 through the crimping sleeve 5. The insulating core wire 6 has a lower elastic modulus than the elastic alloy wire 3. The insulating core wire 6 is fixed to a substrate 8 using a connector terminal 9 after being fixed to a crimp terminal (not shown).

It should be noted that other methods may be used for fixing the insulating core wire 6 to the substrate 8. For example, the conductor 7 may be exposed from the insulating core wire 6 and the conductor 7 may be soldered to the substrate 8.

Further, instead of the insulating core wire 6, another low elastic modulus wire having a lower elastic modulus than the elastic alloy wire 3 may be used. As a low elastic modulus wire having a lower elastic modulus than the elastic alloy wire 3, in addition to the insulated core wire 6, a string, a wire, a resin wire, or a metal wire that is not an elastic alloy wire (copper wire, copper alloy wire, aluminum wire) , Aluminum alloy wire).

The insulation coating 22 is peeled off from the tips of the

insulation core wires

2a, 2b, and 2c, and the conductors 21 of the

insulation core wires

2a, 2b, and 2c are exposed to the outside. is doing. Each of the conductors 21 is soldered to the substrate 8. Other methods may be used as a method of fixing the insulating core wire 6 to the substrate 8. For example, a method of fixing to the substrate 8 using a connector terminal can be employed.

With the above-described configuration, the distal end portion of the elastic alloy wire 3 exposed from the sheath 4 at the terminal portion of the cable 10 passes through the insulating core wire 6 having a lower elastic modulus than that of the elastic alloy wire 3. 2b and the insulating core wire 2c are fixed to the substrate 8 to be connected.

Here, the “tip portion” of the elastic alloy wire 3 is defined to include not only the end portion of the elastic alloy wire 3 but also the vicinity of the end portion of the elastic alloy wire 3. For example, consider a case where the elastic alloy wire 3 and the insulating core wire 6 are fixed by an adhesive tape. Specifically, the vicinity of the tip of the elastic alloy wire 3 and the insulating core wire 6 are fixed, but the tip of the elastic alloy wire 3 is not fixed to the adhesive tape (in other words, floating) think of. Even in such a case, it can be said that the tip of the elastic alloy wire 3 is fixed to the adhesive tape. This definition is that even if the end of the elastic alloy wire 3 is fixed to the insulating core wire 6 and the tip of the elastic alloy wire 3 is slightly lifted, the insulating core wire 2a and the like are It depends on the fact that the situation where the tip is damaged can be avoided.

The board 8 is a circuit board connected to a device or the like. However, the substrate 8 is not a circuit substrate but may be another base (structure) for temporarily fixing the conductor 21 and the insulating core wire 6 and is not limited to a specific structure.

[Terminal processing method]
Next, the terminal processing method of the cable 10 according to the present embodiment will be described with reference to FIG. FIG. 6 is a diagram illustrating a flowchart of the terminal processing method for the cable 10 according to the present embodiment.

First, the cable 10 is prepared (S10). Next, the sheath 4 is peeled off from the terminal portion of the cable 10 (S20). By S20, the elastic alloy wire 3 is exposed from the terminal portion of the cable 10 (S30). In addition, what is necessary is just to be a part of the elastic alloy wire 3 exposed from the terminal part of the cable 10. Next, the exposed tip portion of the elastic alloy wire 3 and one end of the insulating core wire 6 are fixed by the crimping sleeve 5 (S40). Finally, the other end of the insulating core wire 6 is fixed to the substrate 8 (S50).

Through the above steps, the terminal processing structure 1 according to the present embodiment can be obtained. As described above, instead of the insulating core wire 6, another low elastic modulus wire having a lower elastic modulus than the elastic alloy wire 3 may be used.
〔effect〕
The cable end processing structure according to the first aspect of the present invention covers a core wire selected from an insulating core wire and an optical fiber core wire, an elastic alloy wire along the core wire, and the core wire and the elastic alloy wire. A distal end portion of the elastic alloy wire exposed from the sheath at a terminal portion of the cable via a low elastic modulus wire having a lower elastic modulus than the elastic alloy wire. Is fixed to the base body to be connected.

Consider a case where the certain force is applied to the low elastic modulus wire in the vicinity of the fixed portion where the low elastic modulus wire and the base are fixed. At this time, since the low elastic modulus wire has a lower elastic modulus than the elastic alloy wire, it does not exhibit a strong repulsive force unlike the elastic alloy wire.

[Appendix]
When the elastic alloy wire is not fixed to the substrate, the following problems (1) and (2) may occur during the cable terminal processing operation.

(1) The tip of the elastic alloy wire may break through the insulation coating of the plurality of insulation core wires, and the conductors of the plurality of insulation core wires may come into contact with each other and short circuit.

(2) If the elastic alloy wire is not fixed to the substrate, the terminal processor becomes bothered by the presence of the elastic alloy wire during the terminal processing operation. Moreover, in the operation | work which fixes the conductor of an insulation core wire to a board | substrate, the operation | work is prevented by the elastic alloy wire.

Therefore, in order to solve the problems (1) and (2), a method of attaching a crimp terminal to the tip of the elastic alloy wire and fixing the crimp terminal to the connector is also conceivable.

However, this method can cause the following problem (3).

(3) When a certain force is applied to the elastic alloy wire in the vicinity of the connection portion between the connector terminal and the elastic alloy wire (when the connector terminal is connected to the device during the terminal processing operation, or the connector terminal is connected) When the device moves), the elastic alloy wire bends. Then, the elastic alloy wire may come off from the connector terminal due to the repulsive force that the elastic alloy wire has. If the elastic alloy wire is detached from the connector terminal, the tip of the elastic alloy wire may damage the insulating core wire.

Therefore, in order to solve the above problems (1) to (3), the following method can be considered. Specifically, the tip of the elastic alloy wire is cut short enough not to interfere with the terminal processing work, and a protective member such as a protective cap is attached to the tip of the elastic alloy wire. This is a method in which the part does not damage the insulation core wire.

However, the above method can cause the following problems (4) to (7).

(4) Work takes time and effort.

(5) If the tip of the elastic alloy wire is not fixed to the substrate and is left floating in the air, it looks bad.

(6) When a plurality of cables (or / and insulation cores) are connected to the device, the tip portions of the elastic alloy wires left floating in the air are entangled and caught in the plurality of cables. There is a case.

(7) As the device moves, tension is repeatedly applied to the cable (or / and the insulation core wire) connected to the device, and as a result, the sheath may repeatedly expand and contract. At this time, if the elastic alloy wire is not fixed to the substrate, the elastic alloy wire is easily drawn into the sheath. As a result, the elastic alloy wire may be deformed inside the sheath and break through the sheath.

On the other hand, the cable terminal processing structure according to aspect 1 of the present invention can solve the above problems (1) to (7) by including the above configuration.

The following examples are given as specific examples.

When the substrate 8 is connected to a medical device or the like, the elastic alloy wire 3 is fixed to the substrate 8 via the insulating core wire 6, and the elastic alloy wire 3 is not fixed to the substrate 8. Compare At this time, in the former case, the situation in which the connection work is obstructed by the elastic alloy wire 3 is suppressed more than in the latter case.

Also, (A) the case where the elastic alloy wire 3 is connected to the substrate 8 and (B) the case where the insulating core wire 6 is connected to the substrate 8 will be compared. When the substrate 8 is connected to the device or the like during the terminal processing operation, or when the device is moved in the state of (A) or (B), the elastic alloy wire 3 or the insulating core wire 6 and the substrate 8 are connected. Suppose that bending force is applied to the cable near the connecting part. At this time, since the insulating core wire 6 has a lower elastic modulus than the elastic alloy wire 3, it does not exhibit a strong repulsive force unlike the elastic alloy wire, and the insulating core wire 6 is more elastic than the elastic alloy wire 3. Hard to come off from the substrate 8.

Thus, the cable terminal processing structure according to aspect 1 of the present invention can solve the above problems (1) to (7) by including the above configuration.

The cable terminal processing structure according to Aspect 2 of the present invention may be configured such that, in Aspect 1, the elastic alloy wire is positioned at the center of the cable in the cross section of the cable.

According to the above configuration, when the cable is bent, the elastic alloy wire is prevented from being exposed through the sheath. Furthermore, according to said structure, there exists an effect that the said cable becomes easy to bend and it becomes easy to return bending.

The cable terminal processing structure according to aspect 3 of the present invention is the above-described

aspect

1 or 2, wherein the sheath is formed of at least one selected from a vinyl chloride resin, a styrene resin, and a silicon resin. It is good also as composition which has.

Even when vinyl chloride resin, styrene resin, and silicon resin are exposed to a high temperature state of 100 ° C. to 150 ° C. by ordinary autoclave treatment, a part of the resin is softened and the resins adhere to each other. The problem of doing does not occur. Therefore, according to the above configuration, the autoclave process can be performed without any problem.

A cable terminal processing method according to aspect 4 of the present invention covers a core wire selected from an insulating core wire and an optical fiber core wire, an elastic alloy wire along the core wire, and the core wire and the elastic alloy wire. A cable terminal treatment method comprising: a sheath; a step of exposing the elastic alloy wire from a terminal portion of the cable; and the exposed elastic alloy wire having a lower elastic modulus than the elastic alloy wire. The method includes a step of fixing to one end of the elastic modulus wire, and a step of fixing the other end of the low elastic modulus wire to a base body to which the core wire is connected.

Note that “one end” and “the other end” of the low elastic modulus wire are defined to include not only the end of the low elastic modulus wire but also the vicinity of the end of the low elastic modulus wire. For example, consider a case where the elastic alloy wire 3 and the low elastic modulus wire (insulating core wire 6) are fixed by an adhesive tape. Specifically, the tip of the elastic alloy wire 3 and the insulating core 6 are fixed, but the tip of the insulating core 6 is not fixed to the adhesive tape (in other words, floating). Think. Even in such a case, it can be said that the tip of the insulating core wire 6 is fixed to the elastic alloy wire 3. This definition is such that the insulating core wire 2a and the like of the elastic alloy wire 3 are fixed even if the end portion of the low elastic modulus wire is fixed to the elastic alloy wire 3 so that the tip of the low elastic modulus wire is slightly lifted. It depends on the fact that the situation where the tip is damaged can be avoided. Further, it is not necessary that the other end of the low elastic modulus wire itself is fixed to the base, and the vicinity of the other end only needs to be fixed to the base.

The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention.

This international application claims priority based on Japanese Patent Application No. 2016-069063, which is a Japanese patent application filed on March 30, 2016, and the Japanese Patent Application No. 2016-069063 that is the Japanese patent application. The entire contents of the issue are incorporated into this international application.

The above description of specific embodiments of the present invention has been presented for purposes of illustration. They are not intended to be exhaustive or to limit the invention to the precise form described. It will be apparent to those skilled in the art that many modifications and variations are possible in light of the above description.

DESCRIPTION OF SYMBOLS 1

Terminal processing structure

2a, 2b, 2c, 6 Insulation core wire 22 Insulation coating 3 Elastic alloy wire 4 Sheath 5

Crimp sleeve

7, 21 Conductor 8 Board |

substrate

10, 11, 12 Cable

Claims

A core selected from an insulated core and an optical fiber; and
An elastic alloy wire along the core;
In a cable comprising a sheath covering the core wire and the elastic alloy wire,
The tip of the elastic alloy wire exposed from the sheath at the end of the cable is fixed to a base body to which the core wire is connected via a low elastic modulus wire having a lower elastic modulus than the elastic alloy wire. A cable terminal processing structure characterized by having
2. The cable terminal processing structure according to claim 1, wherein the elastic alloy wire is located at a center of the cable in a cross section of the cable.
3. The cable terminal processing structure according to claim 1, wherein the sheath is formed of at least one selected from a vinyl chloride resin, a styrene resin, and a silicon resin.
A core selected from an insulated core and an optical fiber; and
An elastic alloy wire along the core;
A sheath covering the core wire and the elastic alloy wire, and a cable terminal treatment method comprising:
Exposing the elastic alloy wire from the end of the cable;
Fixing the exposed elastic alloy wire to one end of a low elastic modulus wire having a lower elastic modulus than the elastic alloy wire;
Fixing the other end of the low elastic modulus wire to a base to which the core wire is connected;
A terminal processing method for a cable, comprising: