JPS6062008A - Circular coated 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 TECHNICAL FIELD The present invention relates generally to cables, and more particularly to circular jacketed cables that are particularly easily mass-terminable.

BACKGROUND OF THE INVENTION Cables are utilized to interconnect telecommunications equipment to complete data or voice relays.

Examples of these communication devices include telephones, computers, data storage devices, facsimile machines 4, and combinations of these devices.

"Round jacket" cables have typically been used for this purpose. Circular sheathed cables have the advantage of being easier to route, requiring less space and being mechanically flexible in all directions. These circular jacketed cables typically consist of individual cores, or sets of individual strands, that must be individually terminated. Individual termination of these cores is a time consuming process.

Flat or "ribbon J" cables have also been used in the field of telecommunications. In ribbon cables, a plurality of insulated cores are connected to a single flat [distant space known in DI]. An example of this type of ribbon cable is the Scotchflex, manufactured by the Minnesota Mining and Manufacturing Company, St. Paul, Minnesota, USA. 3365
It's a cable. Ribbon cables allow the cable to be collectively terminated using insulation displacement connectors and accommodate a large number of conductors in a small space.

However, in some markets, circular jacketed cables, and therefore ribbon cables, are still required, and the associated advantages in terms of collective termination capability are not available in this application.

Cables have been used that combine the mass-terminable aspects of ribbon-type cables with the geometrical advantages of circular jacketed cables. This cable is manufactured by Oki Electric Co., Ltd.
It is commercially available under the trade name "Okiflex". The cable consists of a ribbon cable that is helically wrapped to form a generally circular cross-section and then sheathed to form a circular V-sheathed cable. Although this cable is capable of being collectively terminated, it is necessary to "unwind" the ribbon cable from the helically wound cable and to lay out the ribbon cable reasonably flat for the purpose of collective termination. amount of the material to be soldered must be stripped off.

DISCLOSURE OF THE INVENTION The present invention provides a circular coated cable having a plurality of longitudinally extending core wires, each core wire being coated with an insulating material. The core has longitudinal sections bonded together such that the insulation of the core is joined together to form a single ribbon cable, and the insulation of the core is laterally separated. It has a separate longitudinal section. The bonded longitudinal sections of insulation form lateral alignment grooves. The bonded longitudinal portion of the ribbon cable (Masoreg (4,') is folded over a plurality of pleats. The covering material surrounds the ribbon cable folded into pleats. to form a cable having the physical characteristics of being circular, flexible, and capable of being collectively terminated. In one preferred embodiment, the core wires have a uniform cross-sectional area. , in a preferred embodiment, the bonded longitudinal portions are evenly spaced and arranged in a single plane. In a preferred embodiment, the plurality of pleats are located below the edge of the ribbon cable. In a preferred embodiment, the conductor is interposed between the pleated ribbon cable and the jacket and shielded by a circular mass termination He is forming a cable.

Pleating the ribbon cable provides unique in-use advantages over helically wound "Okiflex" armored cables.

In the cable of the present invention, the sheathing material M (
length) is much less. In fact, it is estimated that it is necessary to strip only half of the cable uncovered from the termination point compared to a helically wound circular f&round cable. Additionally, because the helically wound cable is loosely wound to accommodate the length that is stripped for termination, the cross-sectional area of the helically wound cable is generally lower than that of the cable of the present invention. big. The closer a helically wound cable is wound, the greater the length that will be stripped for its termination. The cable of the present invention can be flexible in all directions at a shorter distance from the termination point, has a much better appearance and is less susceptible to damage from external objects, yet still has all the advantages of a circular coated ribbon cable. It is a cable with the following advantages.

The individual cores of the ribbon cable are periodically cut open or periodically bonded within the cable, depending on the purpose. A periodic arrangement of bonded longitudinal sections to separate longitudinal sections keeps the individual conductors undisturbed and helps maintain the flexibility of the cable. Group termination is possible at the close VA location opening.

The above advantages, structure and operation of the present invention will be more readily understood from the following description and accompanying drawings.

detailed description FIG. 1 illustrates a ribbon cable 10. As shown in FIG.

The circular coated cable of the present invention can be constructed from this υ-eye cable 10. Ribbon cable 10 includes several conductors 12 coated with insulation material arranged in a known laterally spaced relationship in a single plane. In ribbon cable 10, separate longitudinal sections 16
are periodically spaced apart from the coupled longitudinal portions 14. In the bonded longitudinal sections 14, the insulating coated conductors 12 are maintained in a laterally spaced apart relationship by joining the conductors 12 together. In the bonded longitudinal section 14, the ribbon cable 10 functions as a standard ribbon cable, such as the 5COTCHFLEX 3.5155 cable manufactured by the Minnesota Mining and Manufacturing Company, St. Ball, Minn., USA. and has an appearance. At the bonded longitudinal section 14, the ribbon cable 10 can easily be collectively terminated using available standard insulation displacement connectors (not shown). In one preferred embodiment, each bonded longitudinal section 14 is at least as long as necessary to connect to the insulation displacement connector being used. An example of a commercially available standard insulation material exclusion connector is 16,911J (1
A termination area of 2/3 inch length is required. Thus, in one preferred embodiment, each of the bonded longitudinal sections 14 is at least 16. ．． 9 fil (2/6 of an inch) in length to allow for cluster termination at each abutted longitudinal section 14.

In each separate longitudinal section 16, some or all of the insulated core wires 12 are separated from each other. Such separation is accomplished when the ribbon cable 10 is subsequently folded into pleats and coated with a sheathing material to form a circular sheath.

This is done to make the cable more flexible. Separated longitudinal section 16 is 5COTCHFLEX666
5 by separating the already bonded ribbon cables 10, as in the case of cutting open the insulated cores of a cable, or by gluing the individual insulated cores 12 together using an adhesive or by thermal bonding. The longitudinal section 14 can be constructed by bonding the longitudinal section 14 together. In another embodiment, the glued longitudinal portion 14
and separate longitudinal sections 16 using individual insulated core wires 12 and bonded longitudinal sections 14 L-
formed by utilizing a separate support structure for the construction. In one preferred embodiment, the core wires contained within each insulated core wire 12 have a uniform cross-sectional area. Such a core wire 12 is typically 24 AW.
G to 3 Q AWG. Insulated core wire 1
A typical material that can be used as an insulating material to which P.2 is applied is polyvinyl chloride. The glued longitudinal portions 14 have longitudinal grooves for lateral alignment. These longitudinal ends allow insulation displacement connectors to be aligned with each individual insulated core 12 for proper mass termination of the ribbon cable 10.

FIG. 2 shows a cross section of the ribbon cable 10 of FIG. 1 cut along cutting line 2-2. Each insulated core wire 12 has a core wire 1'8 covered with an insulating material 20. From FIG. 2, which shows a cross-section of the bonded longitudinal portions 14, it can be seen that all of the insulated core wires 12 are held together in a laterally spaced relationship that allows for easy group termination. It should be noted that Further, if the insulation material 20 covering the core wire 18 forms a plurality of ridge-like portions across the core wire 18 and a plurality of alignment grooves 22, it is possible to easily align the insulation material exclusion connector. It should be noted that

FIG. 6 shows the longitudinal direction i of the same ribbon cable 10 separated.
'ft (cut between minutes 16 and 1g13s-3. In Figure 6, a plurality of core wires 18
is covered with an insulating material 20. However, in each separate longitudinal section 16, the insulated core wire 1
Opposed core wires 12, some or all of which are adjacent to each other.
It is separated from the

FIG. 4 illustrates the ribbon cable 10 of FIG. 1 folded into pleats and covered with a jacket 24 to form a circular jacketed cable 26 of the present invention. The ribbon cable 10 is a ribbon cable 10 as illustrated in FIG.
folded back and forth in pleats on itself to form an almost circular transverse]υ[surface of the compact shape M. The pleated ribbon cable is then covered with a f&bum material 24 having a circular transverse orientation.

An example of a material suitable for use as a*A'24 is polyvinyl chloride, polyethylene or Teflon (registered trademark of DuPont). In one preferred embodiment, the material for dressing 24 is polyvinyl chloride. In one preferred embodiment, the inner pleats 28 are wider than the edge pleats 30. By varying the widths of the inner pleats 28 and edge pleats 30, the pleated ribbon cable 10 can be made to more closely approximate a circular cross section.

The circular sheathed cable 26 illustrated in FIG. 5 also has the ribbon cable 10 folded into 70-leats to form a circular cross-section and is housed within the sheath 24. Again, the inner pleats 28 are wider than the edge pleats 30 in order to be able to form a more complete circular cross-section.

In addition, the circularly damaged cable 26 in FIG.
4 is provided with a dedicated shield 32 interposed between the two. By using a suitable conductive shield 32, a similarly shielded and flexible circular mass-terminable covering table can be constructed.

FIG. 6 illustrates a circular jacketed cable 26 that has been unfolded to allow group termination of ribbon cable 0. As you can understand from this diagram, ribbon cable 1
0 is folded in a pleated manner and housed inside the covering material 24. The sheathing material 24 is a circular sheathed cable 26
Ribbon cable 10 is then stripped using commercially available standard insulation displacement connectors that are stripped from the ends of ribbon cable 1o so that ribbon cable 1o is spread out to conform to a single plane.
can be collectively terminated. The amount of sheathing material 24 that must be stripped from the end of the circular sheathed cable 26 depends on the manner in which the ribbon cable 10 is folded within the af material '24. Prior art cables have used helical winding in which ribbon cable 10 is wound to form a circular cross section. In order to unwind such a helically twisted cable, the innermost end insulated Iida core wire can be unwound and placed flat in one plane with the other insulated core wires. The covering material 24 must be peeled off by a certain distance. FIG. 6 shows a circular coated cable 26 of the present invention.
By folding the ribbon cable 10 in a pleated manner, it is shown that only half of the sheathing 24 needs to be peeled off to enable the ribbon cable 10 to be laid flat. In the structure of the present invention in which the ribbon cable 10 is formed into a pleated shape, the insulation "f" and the cover wire 12 on the edge side are arranged at the outer JIM of the folded ribbon cable 10. When the ribbon cable 10 is unfolded, The ribbon cable 10 can be immediately unrolled from both sides of the ribbon cable, thereby allowing the ribbon cable 10 of the present invention to lie flat in half or less of the longitudinal space required in prior art helically wound cables. be able to.

Accordingly, a novel circular coated cable is shown in the accompanying drawings and described above. However, it should be understood that various modifications, improvements and variations of the present invention may be made by those skilled in the art without departing from the scope of the invention.

[Brief explanation of drawings]

Fig. 1 is a diagram illustrating the ribbon cable used in the present invention, Fig. 2 is a cross-sectional view of the first ribbon cable cut along cutting line 2-2, and Fig. 6 is the ribbon of Fig. 1. FIG. 4 is a cross-sectional view of the cable cut along cutting line 6-6, FIG. 4 is an end view of the circular covered cable of the present invention, and FIG. 5 is a cross-sectional view of another example of the circular covered cable of the present invention. An end view, and FIG. 6 is an isometric view of the circular rupture cable of the present invention unfolded in preparation for termination. 10... Ribbon cable, 12... Insulated coated core wire,
14... Adhesive longitudinal portion, 16... Separated longitudinal portion, 18... Cord wire, 20... Insulating material,
22... Alignment groove, 24... Covering material, 26...
Circular coated cable, 28.30... pleats, 32.
...Conductive shield. Agent Akira Asamura

Claims (1)

Scope of Claims: (1) A circular coated cable having a plurality of core wires extending in the longitudinal direction and an insulating material covering each of the core wires, wherein the core wire is said bonded longitudinal portions having bonded longitudinal portions bonded together to form a single glued cable and separate longitudinal portions in which said insulation of said core wire is laterally separated; the insulating material in the longitudinal portions formed therein forming lateral alignment grooves;
The ribbon cable of the bonded longitudinal portion forms a lateral alignment groove, and the ribbon cable of the bonded longitudinal portion is folded over itself to form a plurality of pleats and A circular rupture cable, characterized in that it forms a sheath surrounding the insulation, thereby forming a cable that is circular and has physical properties that are flexible and capable of collective termination. (2. The circular sheathed cable according to claim 1, wherein the plurality of pleats are wider at the center of the ribbon cable than at the edges of the ribbon cable. Cable. (3) A circular covered cable according to claim 2, wherein the core wire has a uniform cross section. (4) Claims A circular coated cable according to claim 6, characterized in that the core wires inside the glued longitudinal section are equidistantly spaced and arranged in a single plane. Damaged cable. (5) The circular supervised cable according to claim 1, further characterized in that a conductor is interposed between the insulating material and the 01j covered material. (6) A circular supervised cable according to claim 1, wherein each of the bonded longitudinal portions has a length of at least 1.69 C-(2/2 of an inch). 6) A circular sheathed cable according to claim 6. (7) In the circular sheathed cable according to claim 6, the bonded longitudinal portion extends along the longitudinal direction of the circular sheathed cable. A circular coated cable characterized in that the cables are formed at intervals of approximately 30.5 cm (1 foot) to 6.1.01 cm (2 feet). In a circular sheathed cable, the bonded longitudinal portion extends approximately 10.175 cm along the length of the circular sheathed cable.
(4 inches) to 15;24 cm (6 inches) apart. (9) A circular coated cable according to claim 1, characterized in that some, but not all, of said core wires are glued together in said separate longitudinal sections. Circular jacketed cable.