JPH07245023A - Multistreak cable - Google Patents

Abstract

PURPOSE:To provide a multistreak cable laying work of which can be carried out smoothly. CONSTITUTION:A multistreak cable is one in which a plurality of cables are bundled and arranged wherein the cables are produced by gathering coated electric wires and coating the gathered wires with an outer coating and each cable 11a-11c is arranged at a position so as to form a polygonal cross-section shape when the respective centers of respective cables are connected with straight lines. Multistreak cables a plurality of which are bundled and arranged are connected with one another along the longitudinal direction of the cables with connecting bodies 14a, 14b made of the same material as that of the outer coating.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-strand cable in which a plurality of covered electric wires are covered with an outer cover and arranged in a bundle.

[0002]

2. Description of the Related Art Conventionally, as an example of using this kind of multi-strand cable, there are wiring of a LAN (local area network) and wiring in which a telephone and a LAN are integrated. The cables or wiring methods to be used are as follows: (1) All sheathed electric wires are assembled into a common sheath (outer sheath)
Cable covered with. (2) A cable in which a plurality of electric wires are twisted around a support wire, or a cable in which electric wires are twisted together. (3) An electric wire or a pair of cables is connected in a flat shape to make it convenient for laying under a carpet. (4) Individual wires or cables are laid separately in the required number of threads. and so on.

However, since the above (1) is a bundle of a very large number of electric wires or pairs,
The space factor of the cable itself is good, but when terminal equipment etc. are arranged discontinuously,
Because of the branch wiring for each terminal equipment, connecting to the logarithmic cables used for each terminal equipment by using an intermediate terminal board, etc. becomes complicated, and the lines are placed very close to each other. There are drawbacks such as deterioration.

The above-mentioned (2) has a drawback that although it is unlikely to cause a problem in a twisted state, it tends to become loose once unraveled, and it becomes difficult to unravel a twisted wire in the middle.

In the above (3), since the cables are arranged in a flat state, it may be difficult to bend or twist the cables, and the space factor in the flat direction deteriorates.

The above-mentioned item (4) has problems that the number of laying steps is increased because individual wires or cables are laid one by one, and the multi-wires and cables are not well organized.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and aims to improve the above-mentioned problems of the prior art and, in particular, to provide a multi-threaded cave that facilitates laying work. Is.

[0008]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention According to the present invention, in a multi-strand cable in which a plurality of cables, each of which is a collection of covered electric wires and covered with an outer cover, is arranged so as to be bundled, are arranged outside when bundled. The cables are arranged so that the line connecting the centers of the cables is located at a position that draws a polygonal cross section, and the multiple-strip cables arranged to bundle the plurality of cables are arranged along the longitudinal direction of the cables. The multi-thread cable is characterized by being connected by a connecting body made of the same material as that of the outer jacket.

That is, the present invention has a cable structure in which the outer jackets are connected so as to be bundled in a round shape, and even if these terminal devices are arranged at different places, one article (a small number of articles may be provided) is attached. Then, when wiring at the location of the terminal, by splitting the above-mentioned connecting body and branching the required cables as if making branches and leaves, a branching structure with good cohesion is made, and between each cable comrades Since the distance between the cables can be increased by the amount corresponding to the body and the jacket, the crosstalk characteristics are improved accordingly. Further, since a play like a gap can be made between the cables of the multi-strand cable by the width of the connecting body, it becomes possible to easily adapt to bending and kinking during installation. In particular, when twisting occurs during installation, the installation resistance is reduced and the ease of installation is improved.
Further, since the multi-strand cable of the present invention has a structure in which it is connected so as to be bundled in a round shape with an outer cover, the multi-strand cable or the cable is configured as compared with the flat type as in the above-mentioned conventional (3). The space factor of the occupied area occupied by each pair of wires can also be reduced. Further, even when the multi-strand cable is manufactured, since the cables are connected to each other in the longitudinal direction, it is only necessary to perform the outer extrusion process once, which is advantageous in that the manufacturing is greatly simplified. You will get it.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the accompanying drawings. FIG. 1 is a cross-sectional configuration diagram of this embodiment when three cables 11a to 11c are used. Here, 12 is a pair of wires, 13 is a sheath made of a plastic sheath, and 14a and 14b are cables 11a and 11b.
Is a connecting body (bridge) that connects the outer jackets of the cables and the outer jackets of the cables 11b and 11c, respectively. Connector 14a,
14b is made of the same material as the outer cover 13 and is integrally formed. The present structure can be obtained by extruding the multi-strand cable.

If the width L of the connecting body (corresponding to the distance between different cables 11) is larger than zero, an appropriate length can be selected, and the connecting bodies 14a and 14b can be connected to the cables 11a-11.
It is formed in the longitudinal direction of c and connects adjacent cables. The arrangement of the cables 11a to 11c is such that, when these centers c are connected together, a substantially regular triangle can be drawn. In other words, the cables 11a to 11c
Since the same shape is used for each of the above, when the virtual circumscribing circle 15 of the cables 11a to 11c is drawn,
The circle 15 is a substantially true circle. Of course, when the cables 11a to 11c are selectively different (for example, the cable diameter or the logarithm), when the respective centers c are connected, the imaginary line shape is positive 3.
It is not a polygon but a simple triangle, or a circumscribed circle 1
5 may not be a perfect circle. The cable 11a
Is used as a wiring for one terminal device, and the cables 11b and 11c are also used so as to correspond to one terminal device, respectively, in a general usage. Also, FIG.
The multi-strand cable of is laid on the double floor of a building.

In the configuration of FIG. 1, the cable configuration is such that the outer casing 13 is connected so as to be bundled in a round shape, and even if the terminal devices are arranged at different places, the
When laying a number of lines (a small number of lines is also possible) and wiring at the location of a certain terminal device, for example, by splitting the connecting body 14a, the required cable 11a is branched as if branches and leaves are made. , A branch configuration with good cohesion between cables can be obtained. In addition, each cable 11a, 11b,
Since the cables 11c are separated from each other by a distance corresponding to the connecting bodies 14a and 14b and the jacket 13, the crosstalk characteristic is improved accordingly. In addition, a play such as a gap is made between the cables 11a to 11c of the multi-strand cable by the width L of the connecting body, and a connecting body is formed between the cables 11a and 11c. Instead, since it is in a blank state, it has a flexible structure in the radial direction of the multi-strand cable, and therefore can easily be adapted to bending and kinking during installation. In particular, when twisting occurs during installation, the installation resistance is reduced and the ease of installation is improved. Further, since the multi-strand cable of the present invention has a configuration in which the outer sheath 13 is connected so as to be bundled in a round shape, the present multi-strand cable or the cable is configured as compared with the flat type such as the above-mentioned conventional (3). The space factor of the occupied area in the circumscribed circle 15 occupied by each pair of wires 12 can be reduced (the diameter of the circumscribed circle 15 can be made relatively small). Further, in the configuration of FIG. 1, since the cables 11a and 11c are not directly connected by the connecting body and are free configurations, the distance between these cables 11a and 11c is set wider than the inter-cable distance L. It can be made narrower or narrower, which may be convenient for installation work. Further, even when the multi-strand cable is manufactured, since the cables are connected to each other in the longitudinal direction, it is only necessary to perform the outer extrusion process once, which is advantageous in that the manufacturing is greatly simplified. It will be obtained. In addition, the connecting bodies 14a and 14b
May be formed not only continuously in the longitudinal direction of the cables 11a, 11b, 11c, but also intermittently in the longitudinal direction of the cables by making perforations or the like.

FIG. 2 is a sectional view showing the construction of another embodiment of the present invention. The feature of this embodiment is that the jacket 13 between the cables 11a and 11c in the multi-strand cable of FIG. 1 is directly connected by a connector 14c made of the same material. In this case, although the elasticity of the distance between the cables 11a and 11c is somewhat impaired, the cables 11a and 11b,
The arrangement between 11c is fixed, and the arrangement can be prevented from varying. Other points are shown in Figure 1.
Since it corresponds to the above case, the corresponding portions will be denoted by the same reference numerals and the description thereof will be omitted. Also in this case, the connecting bodies 14a, 14
b and 14c may be formed not only continuously in the longitudinal direction of each cable 11a, 11b, 11c, but also intermittently in the longitudinal direction of the cable.

FIG. 3 is a different embodiment of the present invention. In this embodiment, the cables 11a to 11c are connected on the center side by a connecting body 14 having a so-called three-pronged shape and having a common structure. Since the other points correspond to the case of FIG. 1, the corresponding portions are denoted by the same reference numerals and the description thereof will be omitted.

FIG. 4 is a different embodiment of the present invention. The present embodiment is a cross-sectional configuration diagram of the present embodiment when four cables 11a to 11d are used. Here, 12 is a pair of wires, 13 is a jacket made of a plastic sheath, and 14a to 14c are jackets between the cables 11a and 11b, jackets between the cables 11b and 11c, and jackets between the cables 11c and 11d. It is a connecting body (bridge) that connects the outer jackets of each other. Connected bodies 14a to 14c
Is the same material as the outer cover 13 and integrally formed,
This structure can be obtained by forming the multi-strand cable by extrusion.

If the width L of the connecting body is larger than zero, an appropriate length can be selected, and the connecting bodies 14a to 14c are formed in the longitudinal direction of the cables 11a to 11d, respectively, and connect adjacent cables. is doing. Cables 11a-11
The arrangement of d is such that, when these centers c are connected, a substantially regular square can be drawn. In other words,
Since the cables 11a to 11d have the same shape, when the virtual circumscribing circle 15 of the cables 11a to 11d is drawn, the circle 15 is substantially a perfect circle. Of course, cables 11a to 11d are selectively different (for example, cable diameter or logarithm).
When, for example, is used, the imaginary line shape when connecting the centers c does not become a regular quadrangle, but becomes a mere quadrangle, or the circumscribing circle 15 may not be a perfect circle. .
The cable 11a is used as a wiring for one terminal device, and the cables 11b to 11d are also used so as to correspond to one terminal device, respectively, which is a general usage. Also in the present embodiment, if any one of the connecting bodies 14a to 14d is omitted, the cables connected by the connecting bodies are free, so that the same flexibility as in the case of FIG. 1 is obtained. Will be done. Since the other points correspond to the case of FIG. 1, description thereof will be omitted.

FIG. 5 is a sectional view of another embodiment of the present invention. The feature of this embodiment is that the jacket 13 between the cables 11d and 11a in the multi-strand cable of the embodiment of FIG.
Are directly connected by a connecting body 14d made of the same material. In this case, the elasticity of the distance between the cables 11a and 11d is slightly impaired, but the cables 11a and 1d are
The arrangement between 1b, 11c, and 11d is fixed, and the arrangement can be prevented from varying. Since the other points correspond to the case of FIG. 4, the corresponding points are
The same reference numerals are given and the description is omitted.

FIG. 6 is a different embodiment of the present invention. This embodiment is a cross-sectional configuration diagram of this embodiment when five cables 11a to 11e are used. Here, 12 is a pair of wires, 13 is an outer jacket made of a plastic sheath, and 14a to 14d are outer jackets of the cables 11a and 11b, outer jackets of the cables 11b and 11c, and outer jackets of the cables 11c and 11d. Is a connecting body (bridge) that connects between the jackets of the cables 11d and 11e. The connecting bodies 14a to 14d are made of the same material as the outer cover 13 and integrally formed, and the present configuration can be obtained by forming the multi-strand cable by extrusion.

If the width L of the connecting body is larger than zero, an appropriate length can be selected, and the connecting bodies 14a to 14d are formed in the longitudinal direction of the cables 11a to 11e, respectively, and connect adjacent cables. is doing. Cables 11a-11
The arrangement of e is such that a regular pentagon can be drawn when these centers c are joined together. In other words,
Since the cables 11a to 11e have the same shape, when the virtual circumscribing circle 15 of the cables 11a to 11e is drawn, the circle 15 is substantially a perfect circle. Of course, cables 11a to 11e are selectively different (for example, cable diameter or logarithm).
When, for example, is used, the imaginary line shape does not become a regular pentagon when connecting the above-mentioned centers c, but may become a mere pentagon, or the circumscribing circle 15 may not be a perfect circle. .
The cable 11a is used as a wiring for one terminal device, and the cables 11b to 11e are also used so as to correspond to one terminal device, respectively, which is a general usage. Also in the present embodiment, if any one of the connecting bodies 14a to 14d is omitted, the cables connected by the connecting bodies are free, so that the same flexibility as in the case of FIG. 1 is obtained. Will be done. Since the other points correspond to the case of FIG. 1, description thereof will be omitted.

FIG. 7 is a sectional view of the configuration of another embodiment of the present invention. The feature of this embodiment is that the jacket 13 between the cables 11e and 11a in the multi-strand cable of the embodiment of FIG.
Are directly connected by a connecting body 14e made of the same material. In this case, although the elasticity of the distance between the cables 11a and 11e is slightly impaired, the cables 11a and 1e are
The arrangement between 1b, 11c, 11d, and 11e is fixed, and these arrangements can be prevented from varying. Since the other points correspond to the case of FIG. 6, the corresponding portions are denoted by the same reference numerals and the description thereof will be omitted.

FIG. 8 shows a different embodiment of the present invention. The present embodiment is a cross-sectional configuration diagram of the present embodiment when six cables 11a to 11f are used. Here, 12 is a pair of wires, 13 is an outer sheath made of a plastic sheath, and 14a to 14e are outer sheaths of the cables 11a and 11b, outer sheaths of the cables 11b and 11c, and outer sheaths of the cables 11c and 11d. Is a connecting body (bridge) for connecting the cables, the cables 11d and 11e, and the cables 11e and 11f. Connector 1
4a to 14e are made of the same material as the outer cover 13 and are integrally formed. The present structure can be obtained by extruding the multi-strand cable.

If the width L of the connecting body is larger than zero, an appropriate length can be selected, and the connecting bodies 14a to 14e are formed in the longitudinal direction of the cables 11a to 11f, respectively, and connect adjacent cables. is doing. Cables 11a-11
The arrangement of f is such that a regular hexagon can be drawn when these centers c are connected. In other words,
Since the cables 11a to 11f have the same shape, when the virtual circumscribing circle 15 of the cables 11a to 11f is drawn, the circle 15 is substantially a perfect circle. Of course, cables 11a to 11f are selectively different (for example, cable diameter or logarithm).
When using each of the above-mentioned centers c, the imaginary line shape may not be a regular hexagon but may be a simple hexagon, or the circumscribing circle 15 may not be a perfect circle. .
The cable 11a is used as a wiring for one terminal device, and the cables 11b to 11f are also used so as to correspond to one terminal device, respectively, which is a general usage. Also in the present embodiment, if any one of the connecting bodies 14a to 14e is omitted, the cables connected by the connecting bodies 14a to 14e have a free structure, so that the same flexibility as in the case of FIG. 1 is obtained. Will be done. Since the other points correspond to the case of FIG. 1, description thereof will be omitted.

FIG. 9 is a sectional view of the configuration of another embodiment of the present invention. The feature of this embodiment is that the jacket 13 between the cables 11e and 11a in the multi-strand cable of the embodiment of FIG.
Are directly connected by a connecting body 14f made of the same material. In this case, the elasticity of the distance between the cables 11a and 11f is somewhat impaired, but the cables 11a and 1f are
The arrangement between 1b, 11c, 11d, 11e, and 11f is fixed, and it is possible to prevent these arrangements from varying. Since the other points correspond to the case of FIG. 9, the corresponding portions are denoted by the same reference numerals and the description thereof will be omitted.

FIG. 10 shows another embodiment of the present invention.
The present embodiment is a cross-sectional configuration diagram of the present embodiment when seven cables 11a to 11g are used. Here, 12 is a pair of wires, 13 is a jacket made of a plastic sheath, and 14a to 14f are cables 11a and 11b.
Is a connecting body (bridge) that connects the outer sheaths of the cables 11b and 11c, the outer sheaths of the cables 11c and 11d, the outer sheaths of the cables 11d and 11e, and the outer sheaths of the cables 11c and 11g. . The connecting members 14a to 14f are made of the same material as the outer cover 13 and are integrally formed. The present structure can be obtained by forming the multi-strand cable by extrusion.

If the width L of the connecting body is larger than zero, an appropriate length can be selected, and the connecting bodies 14a to 14f are formed in the longitudinal direction of the cables 11a to 11g, respectively, and are arranged inside and outside the cables. Connecting between. The arrangement of the six cables 11a to 11e is such that a substantially regular hexagon can be drawn when these centers c are joined together.
The remaining cable 11g is located at the center. In other words, since the cables 11a to 11e have the same shape, when the virtual circumscribing circle 15 of the cables 11a to 11e is drawn, the circle 15 is a substantially true circle. . Of course cables 11a-1
When 1e is selectively different (for example, the cable diameter or the logarithm), the virtual line shape does not become a regular hexagon when connecting the centers c, but a simple hexagon. In some cases, the circumscribing circle 15 does not become a perfect circle because of the shape. The cable 11a is used as a wiring for one terminal device, and the cables 11b to 11g are also used so as to correspond to one terminal device, respectively, in a general usage. Since the other points correspond to the case of FIG. 1, description thereof will be omitted.

FIG. 11 is a sectional view showing the configuration of another embodiment of the present invention. The feature of this embodiment is that one cable 11f is omitted in the multi-strand cable of the embodiment of FIG. 10, and the arrangement of such a configuration is also possible.

FIG. 12 shows another embodiment of the present invention.
The present embodiment is a cross-sectional configuration diagram of the present embodiment when seven cables 11a to 11g are used. Here, 12 is a pair of wires, 13 is a jacket made of a plastic sheath, and 14a to 14f are cables 11g and 11a.
It is a connected body (bridge) which connects each ~ 11f.
The connecting members 14a to 14f are made of the same material as the outer cover 13 and are integrally formed. The present structure can be obtained by forming the multi-strand cable by extrusion.

If the width L of the connecting body is larger than zero, an appropriate length can be selected, and the connecting bodies 14a to 14f are formed in the longitudinal direction of the cables 11a to 11g, respectively, and are arranged inside and outside. Connecting between. Cable 11
The arrangement of a to 11f is such that a regular hexagon can be drawn when these centers c are joined together. In other words, since the cables 11a to 11f have the same shape, when the virtual circumscribing circle 15 of the cables 11a to 11f is drawn, the circle 15 is substantially a perfect circle. . Of course cables 11a-1
When 1g is selectively used (for example, cable diameter or logarithm), the virtual line shape does not become a regular hexagon when connecting the centers c, but a mere hexagon. In some cases, the circumscribing circle 15 does not become a perfect circle because of the shape. The cable 11a is used as a wiring for one terminal device, and the cables 11b to 11g are also used so as to correspond to one terminal device, respectively, in a general usage. Since the other points correspond to the case of FIG. 1, description thereof will be omitted.

[0029]

As described above, according to the present invention, the cable structure is such that the outer jackets are connected so as to be bundled in a round shape, and even if the terminal devices are arranged disjointly at one place, one article (a small number of When laying multiple lines) and wiring at the location of the terminal equipment, the required cable is split as the above-mentioned connecting body is split to make a branch structure with a good cohesion, In addition, since the distance between the cables can be increased by the amount of the connecting body and the sheath between the cables, the crosstalk characteristic is improved accordingly. Further, since a play like a gap can be made between the cables of the multi-strand cable by the width of the connecting body, it becomes possible to easily adapt to bending and kinking during installation. In particular,
When a twist occurs during installation, the installation resistance is reduced and the ease of installation is improved. In addition, the multi-strand cable of the present invention,
Since the structure is such that the jackets are connected so as to be bundled in a round shape, the space factor of the occupied area occupied by the multi-strand cable or each pair of wires constituting the cable can be reduced as compared with the conventional flat cable. . Further, even when the multi-strand cable is manufactured, since the cables are connected to each other in the longitudinal direction, it is only necessary to perform the outer extrusion process once, which is advantageous in that the manufacturing is greatly simplified. It is possible to provide a multi-strand cable having advantages such as being obtained.

[Brief description of drawings]

FIG. 1 is a cross-sectional configuration diagram of an embodiment of the present invention.

FIG. 2 is a cross-sectional configuration diagram of a different embodiment of the present invention.

FIG. 3 is a sectional configuration diagram of a different embodiment of the present invention.

FIG. 4 is a sectional configuration diagram of a different embodiment of the present invention.

FIG. 5 is a cross-sectional configuration diagram of a different embodiment of the present invention.

FIG. 6 is a sectional configuration diagram of a different embodiment of the present invention.

FIG. 7 is a sectional configuration diagram of a different embodiment of the present invention.

FIG. 8 is a sectional configuration diagram of a different embodiment of the present invention.

FIG. 9 is a sectional configuration diagram of a different embodiment of the present invention.

FIG. 10 is a sectional configuration diagram of a different embodiment of the present invention.

FIG. 11 is a cross-sectional configuration diagram of a different embodiment of the present invention.

FIG. 12 is a cross-sectional configuration diagram of a different embodiment of the present invention.

[Explanation of symbols]

11a to 11g ... cable, 12 ... paired wire, 13 ... jacket,
14, 14a to 14f ... Connected body (bridge).

Claims (8)

[Claims] 1. A multi-strand cable in which a plurality of covered wires covered with an outer cover are arranged to be bundled, and each cable arranged outside when bundled is
The cables are arranged so that the line connecting the respective centers of the cables is in a position that draws a polygonal cross section, and the multiple cables arranged so as to bundle the plurality of cables are arranged along the longitudinal direction of the cables to cover the outer sheath. A multi-strand cable characterized by being connected by a connecting body made of the same material as. 2. The multi-strand cable according to claim 1, wherein the width of the connecting body is greater than zero. 3. The multi-strand cable according to claim 1, wherein the connecting body can be cut by pulling the cables arranged on both edges of the connecting body in directions away from each other. 4. The multi-strand cable according to claim 1, wherein the connecting body is formed intermittently in a longitudinal direction of the cable. 5. The multi-strand cable according to claim 1, wherein when the cables are virtually connected to each other in a ring-shaped cross section by the connecting body, the connecting body is omitted at only one location. 6. The multi-strand cable of claim 1, wherein the cables are selectively different. 7. The multi-strand cable according to claim 1, wherein the polygon is a substantially regular polygon. 8. The multi-strand cable according to claim 1, wherein an imaginary circumscribing circle connecting the outer peripheries of the respective cable assemblies is a substantially true circle.