JPS60189113A - Stretchable wire and cable - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Background and Objectives of the Invention] The present invention is directed to electric wires and cables used in machines and appliances that are forced to move, such as control couples used in industrial robots and movable lighting equipment. It is particularly suitable for applications where flexibility and stretchability are required, such as cables for cables used in cables, or detection and measurement cables used between buoys installed on the sea and sonar installed in the sea. This is where the wires and cables are connected.

For example, when detecting and covering a school of fish in the sea from a receiving station on a ship on the sea, an airplane in the air, or on land, this is done by using a sono-3 installed under the sea as shown in FIG. To further explain, the electrical signal from sonar 3 is converted into radio waves and transmitted to a ship, airplane, or receiving station. Cable 2 suspended from buoy 1 into the sea (hereafter
・It is called sonobuoy cable 2. ), a sonar 3 with the function of detecting the presence of schools of fish etc. in the sea is suspended 1.
It is carried out separately. However, there are no schools of fish etc.
The signal received at that time is transmitted from Sonobuoy J-3 to buoy 1 via sonobuoy cable 2, and this buoy 1 then transmits the signal to a receiver waiting nearby on the sea, on land, or in the sky. As a result, it becomes 11.

By the way, in order to accurately detect the presence or absence of schools of fish, etc. in the sea and their positions, it is desirable that the Soka-3 be fixedly installed at a fixed position in the sea.

Therefore, the sonar 3 is installed so that even if the buoy 1 is swayed by waves, it will not be swayed along with it.
It is necessary to do so. In other words, even if J: is added to the swing of buoy 1 and tension is added to sonobuoy cable 2,
The tension is prevented from spreading to the sonar 3; in other words, it is caused by the swinging of the buoy 1 through the sonobuoy cable 2.

It is necessary to use a cable that can absorb and relieve tension. Considering this, conventional sonobuoy cable 2
As shown in FIG. 1, a spring cable 2 or the like formed into a coil shape is used.

4 However, in this spooling cable 2, a large tension greater than the r1 capacity value is applied, and the resulting
If the coiled state is deformed into a straight state by tension, a twist will occur in the spring cable 2, which may damage the electrical conductor transmitting the electrical signal.

The purpose of the present invention is to eliminate the drawbacks of the conventional products mentioned above,
A new stretchable electric wire/Guzol that not only has flexibility and stretchability, but also has the ability to absorb tension on its own and will not damage the electrical conductor even if a tension of 3 or more is applied. The purpose is to capture and offer.

[Summary of the Invention] In other words, the gist of the present invention is a stretchable electric wire/guzol in which a horizontally wound layer or a mixed braided layer made of an insulated electric wire and fibers is formed on an elastic string-like core body 1.

[Example J Hereinafter, an example of the present invention will be described with reference to the drawings.
In Fig. 2, 4 is an elastic cord-like core of a silylon rubber tube, and 5 is an insulated wire consisting of an electrical conductor made of stranded copper wire coated with an insulation coating of ethylene tetrachloride [J [1] ethylene. Make a 250 denier two-strand poly 1 sprue string - C1 These insulated wires 5 and Ia N f: 3 are made into braided threads. Each braided thread is loosened somewhat against the elastic string-like core 4 The interwoven braided layer 7 consisting of attachment 1) is formed on the elastic string-like core body /l]-.

Furthermore, in this case, the braided yarn consisting of the insulated wire 5 is
The braided yarn is looser than the braided yarn made of.

If we look at the case where a stretchable wire having such a configuration is used in place of the spring cable 2 shown in FIG. 1, we can see that the stretchable wire is not exposed to waves as shown in FIG. When tension is applied to the electric wire due to the influence of waves, the third
As shown in FIG. 1, the elastic string-like core 4 is elongated, and each braided thread is deformed into a longitudinally spliced shape so that the tension can be absorbed. Moreover, at this time, most of the tension is applied to the elastic string-like core 4, and if J3 is applied to each braided yarn 5°6 constituting the interwoven braided layer 7, the braiding angle will simply become smaller (as shown in Fig. 2). It changes from 01 as shown to θ2 (not shown in FIG. 3).) Since almost no tension is applied to the wire itself, damage to the insulated wire 5 due to tension is effectively prevented. Furthermore, the great effect of the stretchable electric wire of Example 1 is exhibited when a tension greater than that indicated by -1 is applied.That is, in this case, the elastic cord-like core 4 and the interwoven braid The layer 7 is further deformed to a smaller diameter, and each of the braided yarns is about to be deformed into a longitudinally spliced shape, but when the tension reaches a predetermined size, the interwoven braided layer 7
0 tightening against the elastic string-like core 1) reaches its limit,
The stretch of the elastic wire as a whole stops, and from that point on the wire ceases to act as a tensile strength body. However, in this case, the insulated wires 5 are braided in a looser state than the textile yarn 6, which is the braided yarn C. The insulated wire 5 is safely protected.

In the above-mentioned example, the interwoven braided layer 7 in which the insulation type #j! It is also conceivable to arrange a horizontally wound layer formed by winding on the elastic string-like core 40.

In addition, regarding the structure and structure of the elastic string-like core body 4, in addition to the one described in the above-mentioned embodiment, it is also possible to use one made by twisting elastic threads 17 or a collection of elastic plates, elastic f1, and noil l~. etc. can also be considered.

In addition, the material C of the elastic string-like core 4 includes butyl rubber, natural rubber, styrene-butadiene rubber, chloroprene rubber, acrylyl rubber, ethylene-propylene rubber, butadiene rubber, chlorosulfonated polyJ-brene,
Examples include urethane rubber, acrylic rubber, r--'' full rubber (hydrin rubber, oxidium), fluororubber, Sumo plastic rubber, etc., but as long as it is an elastic material with stretchability, it is limited to one type. It's not a thing.

Further, the material for l1lII16 is not limited to polyamide resin, but may also be synthetic resins such as polyamide resin, fluororesin, polypynylinofluer resin, silk thread, cloth, cotton thread, glass fiber, etc.

- Vinylidene fluoride may also be used as the material for the insulation coating of the insulated wire.

Furthermore, in the above-mentioned embodiment, the present invention shows a case where the stretchable electric wire/cable is used as a cable for a sonobuoy, but the present invention can also be used for, for example, a control cable used in an industrial robot, or a lighting equipment that is forced to move. It is also possible to use it in areas where stretchability and flexibility are particularly required, such as in electrical wires and cables. In particular, if the electric wire/cable of the present invention is used, a spring cable 2J as shown in FIG.
Since the shape is a molded type, there is also a significant improvement in terms of space factor.

[Effects of the Invention J As described above, according to the present invention, since the insulated wire and laIMl are mixed on an elastic cord-like core and formed with C horizontally wound layers or 11 layers entirely woven, it is easy to use. The influence of the tension generated inside the insulated wire is hardly applied to the insulated wire, so damage to the insulated wire due to twisting etc. can be eliminated, and its industrial value is extremely large.

[Brief explanation of drawings]

Figure 1 is an explanatory diagram showing how the sonobuoy couple is used.
FIG. 2 is a front view showing one embodiment of the stretchable electric wire/cable of the present invention, and FIG. 3 is a front view showing a deformed state of the stretchable electric wire of FIG. 2. 1: Buoy, 2: Cable for sonobuoy, 33: Sono-1
4: Elastic string core, 5: Insulated wire, 6: Fiber, 7: Flower
1. Guitar 2. Illustration 3.

Claims (1)

[Scope of Claims] (1) One layer of horizontally wound or interwoven knitting consisting of insulated wire and fibers is formed on an elastic string-like core. . -4-Sei. 5 (2
) The stretchable electric wire/turple according to claim 1, wherein the horizontally wound layer or the interwoven braided layer is loosely formed on the elastic string-like core. (3) The stretchable electric wire/cable according to claim 1 or 2, wherein the insulated electric wire is laterally wound or braided more loosely than the fibers.