JPS60136108A - Signal transmitting strand - 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] [Field of Application of the Invention] The present invention relates to a signal transmission strip, and in particular, the present invention relates to a signal transmission strip, in particular, an elastic thread is used as a core strip, and a signal transmission wire strip is wound around the core to carry the shock. Stretching can prevent breakage due to the action of external forces such as or tension, and in actual use, there is no need to set strict settings for the length. It will be available for use on 11th.

[Prior art and its problems]

Conventionally, the signal transmission strips that make up telephone cables in particular have been coated with copper wire, or
Recently, new materials such as so-called optical fibers have also been used.

However, in order to reduce the m+A cost and for other reasons, this type of cable must use the thinnest signal transmission wires possible, and must be buried underground.
Although cables are installed in the air or installed in the air, various external forces such as shock and tension may be applied to them, and such external forces may affect the signal transmission that makes up the cable. If the cutting stress is greater than the cutting stress of the signal transmission element filament, all or part of the signal transmission element filament will be cut. Therefore, in reality, very thin signal transmission wires could not be used.

In view of these problems, a signal transmission strip as shown in FIG. 7 has recently been provided.

As shown in the figure, around the core 1 made of synthetic fiber,
The flat phase wire 2 is wound to provide reinforcement in the tensile direction. However, in this case, since the core wire 1 does not substantially stretch, external forces such as tension are almost directly applied to the flat liI wire 2. Therefore, if the core strip 1 is cut, the flat copper wire 2 will also be cut immediately. In particular, since the signal transmission strips that make up telephone cables are thin, there is a limit to their tensile strength, and if tension close to the limit of cutting stress is constantly and repeatedly applied, the signal transmission strips will be damaged. The constituent wires for signal transmission become fatigued and their durability is impaired.

In addition, the signal transmission strips may not be structured as turrets as described above (but may also be used on the vehicle body), in which case the required length must be strictly ensured. However, in reality, due to a mistake in the work, the length may be cut a little shorter than the required length.
At that time, the signal transmission strip becomes unusable.

[Purpose of the invention]

This invention solves the above-mentioned problems,
The purpose is to provide a signal transmission strip that can be expanded and contracted and not be cut by the action of external force.The purpose is also to provide a signal transmission strip that can be expanded and contracted and not be cut short by the action of an external force. providing a strut body, and furthermore,
The purpose is to provide an extremely thin signal transmission strip in order to reduce material costs, and a further purpose is to provide a durable signal transmission strip.

[Summary of the invention]

The signal transmission strip of the present invention has an elastic thread as a core, and the signal transmission strip around which the normal elastic thread stretches more than 200%. Using this elastic thread as a core, a conductive material such as a flat wire such as copper, or a signal transmission filament such as an optical fiber is wound helically to obtain an expandable signal transmission strip.

However, in this invention, such an expansion/contraction ratio is not necessary and may be harmful. Therefore, some drafts are applied to this elastic yarn, and the entire stretchable fiber is wound into a core by using a covering device used in a silk mill. obtain. In this way, the elasticity of the fiber becomes taut due to the winding, which is a substantially non-stretchable fiber, ζJ! ! In this case, the length of the signal transmission element wire when the coil of the winding is stretched out is the maximum length of the core wire. It is necessary to set the length so that it is the same as or thicker than the length when stretched.

Various materials such as metal wires, which are typically good electrical conductors, carbon TA fibers, and other optical fibers can be used as the signal transmission strands here.

The signal transmission strip formed in this way has a width that extends from the axis of the signal transmission strip to the wound coil of the signal transmission wire (+lr). An external force in the direction of and along the axial direction of
It can be absorbed by the shape of the shock or tension, and therefore such forces
If it is within the range of force, it will not be cut by such force. Furthermore, even when actually used, even if the length is cut to a certain extent shorter than the required length, it can be stretched and used.

(Example 1) The signal transmission strip shown in FIG. 1 uses an rx2j denyl polyurethane elastic yarn as the core strip 14, stretches it 3 to 3.5 times, and uses it for second grade fi. Copper wire with a diameter of 0.1-
A signal transmission element wire 16 made of a flat wire with a thickness of 0.275 mm is wound at a rate of 1200 times/m, and the overall diameter is 0.0275 mm.
The length was 32m++, and 200 single returns were performed. “Such a signal transmission strip is shown in Figure 1 (
The state shown in A) can be extended to the state shown in FIG. 1 (B).・ Due to this elongation, even if an external force such as a shock or tension is applied to the signal transmission strip, the entire strip absorbs this force and prevents the cutting machine from breaking.

[Example 2] The signal transmission strip shown in FIG. 2 uses a 1120 denier polyurethane elastic yarn as the core strip 14, stretches it 3 to 3.5 times, and uses a commonly used covering device. Accordingly, the signal transmission element wire 16 made of optical fiber is wound at a rate of 1200 turns/m, the overall diameter is set to 0.321 mm, and the coil is wound back 200 times. There is a thing-C.

Such a signal transmission strip can be extended from the state shown in FIG. 1(A) to the state shown in FIG. 1(B).

Due to this elongation, even if an external force such as a shock or tension is applied to the signal transmission strip, it can be absorbed as a whole and can be prevented from being cut or damaged.

[Example 3] The signal transmission strip shown in FIG. 3 is made by winding a 140 denier nylon or polyester fiber 12 around an 840 denier polyurethane elastic thread 10 to form a core strip 14, and on top of this, A signal transmission strand 16 made of a copper wire with a diameter Q' of 3 mm was rolled and formed into a flat shape, and was wound at a rate of 500 turns/m to have an overall diameter of 0.3211.

Such a signal transmission strip can be extended from the state shown in FIG. 3(A) to the state shown in FIG. 3(B).

In this case, tension is not directly applied to the signal transmission strand 16 due to the elongation limit of the core 14 due to the tension regulation of the nylon or polyester fibers 12 which do not substantially expand or contract. subordinate game ζ
Even if an external force such as a shock or tension is applied to this signal transmission strip, this force will not be applied directly to the signal transmission strand 16 as tension, but will be absorbed by the entire signal transmission strip.

[Example 4] The signal transmission strip shown in FIG.
Denyl nylon or polyester fibers 12 are wound to form a core 14, and on top of this a copper wire with a diameter Q of 5 m is rolled and formed into a flat shape twice the width of that of the previous example. The signal transmission wire strip 16 made of copper wire was
The overall diameter was made 0.32cm by winding it with a diameter of 0.3m.

In the signal transmission strip formed in this manner, the edges in the width direction overlap at the length of the signal transmission wire 16 in the state where the entire length is not stretched as shown in FIG. 4(A). Even when the whole body is stretched out as shown in Figure (B),
The widthwise edge still leaves a lapped portion. This is suitable for transmitting signals using relatively high voltage or current with a large amount of electricity.

[Example 5] The signal transmission strip shown in FIG. 5 is made by winding a 140 denier nylon or polyester fiber 12 around an 840 denier polyurethane elastic thread 10 to form a core strip 14, and on top of this, A signal transmission element wire I6 made of straight (¥Q, 2m@ round copper wire) was wound at a rate of 500 turns/m to reduce the overall diameter to 0.
．． It was set to 32+u.

This example ranks first in flexibility. Third. Although it is inferior to the fourth embodiment, if the diameter of the signal transmission element wire 16 is selected to be small, its flexibility will not be hindered so much, and the first embodiment
．． Third. It can exhibit substantially the same operation and effect as the fourth embodiment.

(Example 6) The fa number transmission strip shown in FIG. Then, a signal transmission filament 16 made of a known round optical fiber with a diameter Q of 31111 was wound at a rate of 500 turns/m so that the overall directivity in °C was 0.321 II.

This example ranks first in flexibility. Third. Although it is inferior to the fourth embodiment, since an optical fiber is selected as the signal transmission filament 16, there is an advantage that it can be applied to the transmission of optical signals rather than electrical signals themselves.

Regarding other functions and effects, please refer to Section 1. 3rd degree: Same as the fourth embodiment.

[Other Examples]

Although not shown, in the case of electric signals, copper wire is the cheapest and most efficient for signal transmission strips, but aluminum alloy, carbon fiber, etc. can also be used, for example. It is possible to use inexpensive rubber for the elastic thread, but if the signal transmission element wire is made of copper, the copper component will damage the rubber, so the signal transmission element of the copper wire is not suitable. The combination of wire bundle and rubber elastic thread is not possible. Rather, when copper wire is used for this signal transmission strand bundle, polyurethane is preferable as described above.

Furthermore, a structure in which a polyurethane elastic thread is applied to the core thread and only a signal transmission thread of carbon fiber is wound thereon can also be cited as an effective embodiment of the present invention.

The above embodiments can be summarized as follows.

(1) A signal transmission strip consisting of a core made of polyurethane elastic thread and a copper flat wire wound around it.

(2) A signal transmission strip made of polyurethane elastic thread as a core strip and optical fiber wrapped around it.

(3) A core thread is formed by winding a substantially non-stretchable fiber for tension regulation around an elastic thread, and a core thread is formed on the core thread with a length equal to or longer than the length of the core thread when the core thread is at its maximum elongation. A signal transmission strip made by winding a bundle of signal transmission wires.

(4) An fB transmission strip in which the elastic thread is a polyurethane elastic thread.

(5) A signal transmission strip in which the signal transmission wire bundle is made of copper wire.

(6) The elastic thread is a polyurethane elastic thread, and the signal transmission strand bundle is a copper wire (i. Transmission strip).

(7) A signal transmission strip in which the signal transmission wire bundle is a copper flat wire.

(8) A signal transmission strip, wherein the elastic thread is a polyurethane elastic thread, and the signal transmission wire bundle is formed of a copper flat wire.

(9) A core is formed by winding a substantially non-stretchable fiber for tension regulation around an elastic thread, and a signal transmission wire bundle made of a copper flat wire is placed on top of the core by stretching the whole. A signal transmission strip that is wound so that its widthwise edges overlap each other.

(10) A core is formed by winding a substantially non-stretchable fiber for regulating tension around an elastic thread, and a bundle of signal transmission wires is wound on top of the core at an appropriate pitch. A signal transmission strip.

〔Effect of the invention〕

When an external force in the form of shock or tension is applied to this signal transmission strip in a direction crossing its axis or along its axis, the signal transmission strip absorbs ζ by elongation. and thus can be prevented from being cut by such forces. Further, even when actually used, even if the length is cut to a certain extent shorter than the required length, it can be stretched and used.

When a plurality of signal transmission strips are typically bundled together and coated with a nylon coat, they are particularly suitable for use as a cord connecting the main body of a telephone and a handset.

[Brief explanation of the drawing]

Figure 1 (A) is a cross-sectional view of a signal transmission strip formed by winding a copper signal transmission strip around an elastic thread core, and Figure 1 (B) is a cross-sectional view of a signal transmission strip formed by winding a copper signal transmission strip around an elastic thread. Cross-sectional view showing the stretched strip, ``2nd Fl! J(A) is a sectional view showing a signal transmission strip formed by winding an optical fiber signal transmission wire bundle around an elastic thread as a core, and FIG. 2(B) is a cross-sectional view of the signal transmission strip. Fig. 3 is a cross-sectional view showing a stretched strip.
A) is a cross-sectional view of a signal transmission strip formed by winding a substantially non-stretchable fiber for regulating tensile strength around an elastic thread to form a core strip, and winding a bundle of signal transmission wires of flat copper wire around the core strip; Figure 3 (B) is a cross-sectional view showing the signal transmission strip in an extended state, and Figure 4 (A) is a core strip made by winding substantially inelastic fibers for regulating tension around an elastic thread. Figure 4 (B) is a cross-sectional view of a signal transmission strip in which a wide flat copper wire bundle for signal transmission is wound. The cross-sectional view in Figure 5 shows a signal transmission strip using a core strip made by winding a substantially non-stretchable fiber for tension regulation around an elastic thread, and using a bundle of round copper wires for signal transmission. Figure 6, a cross-sectional view of the body, shows a signal transmission system in which a substantially inelastic fiber for regulating tension is wound around an elastic thread to form a core, and a bundle of round optical fibers for signal transmission is wound around this core. 7 is a sectional view of a conventional signal transmission strip. In the figure, 10 is an elastic thread, 12 is a substantially non-stretchable paper fiber 14 is a core thread, 16 is a wire for signal transmission. Patent applicant: Ku-Sangyo Co., Ltd. Agent Patent attorney: Tetsuya Mori, patent attorney Yoshiaki Naito, patent attorney Yoshiaki Shimizu, patent attorney Horiyoshi Shimizu Figure 2 (A) (B) 4 Figure (A) 5th cause 6 Figure +4 14

Claims (1)

[Claims] A signal transmission strip formed by winding a signal transmission wire around a core containing elastic thread.