JP2537865Y2 - Flat cable armored composite cable - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a composite cable used for electronic equipment such as a computer and industrial equipment, and more particularly, to a flat cable sheath in which a flat cable is vertically wrapped or wound around a wire core arranged at the center. The present invention relates to an improvement of a type composite cable.

[0002]

2. Description of the Related Art Composite cables are sometimes used in electronic equipment such as computers and industrial equipment in order to collectively process a large amount of information. There are various types of such composite cables. One of them is to arrange a wire core at the center, and to attach a flat cable vertically around the wire core to facilitate processing and wiring work of the terminal. An attached or wound flat cable armored composite cable is provided.

Conventionally, as shown in FIG. 4, this type of flat cable armored composite cable has a flat cable 14 vertically attached or wound around an outer periphery of a wire core 12 arranged at a center, and a sheath 30 is placed thereon. Was formed by coating.

[0004]

However, in this prior art, since the sheath must be further coated on the flat cable wrapped or wound vertically, the outer diameter of the entire composite cable with a flat cable exterior is reduced. Get fat,
There are drawbacks such as the inability to efficiently lay cables. On the other hand, in order to reduce the overall diameter of the flat cable exterior type composite cable, it is conceivable to reduce the number of signal lines constituting the flat cable, but the amount of information to be transmitted is reduced,
Transmission characteristics may be degraded, for example, the characteristic impedance may change. It is also conceivable to reduce the diameter by omitting the sheath that causes the outer diameter to become thicker. However, in the case of the conventional flat cable armored composite cable, the flat cable is loosened, and Is exposed, the wire core may be affected by the outside, and the transmission characteristics of the flat cable exterior type cable may be degraded.

The object of the present invention is to avoid the above-mentioned disadvantages and to reduce the amount of information to be transmitted and the transmission characteristics without lowering it.
It is an object of the present invention to provide a flat cable armored composite cable that can be reduced in diameter.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a flat cable comprising a centrally disposed wire core and a flat cable vertically attached or wound around the outer periphery of the wire core. In a cable-covered composite cable, adjacent edges of a vertically attached portion or a wrapped portion of a flat cable are continuously bonded or fused to each other so that the flat cable encloses a wire core. An object of the present invention is to provide a cable exterior composite cable.

[0007]

As described above, when the ends of the adjacent flat cables are continuously bonded or fused to each other when they are vertically attached to or wound around the wire core, and the wire core is confined by the flat cable, the flat cable is closed. Since it acts as a sheath of the wire core without being loosened, the transmission characteristics are not reduced, and furthermore, there is no need to coat the sheath, so that the diameter of the flat cable sheath-type composite cable can be reduced. Since the diameter can be reduced without reducing the number of signal lines constituting the signal line, the amount of information to be transmitted does not decrease.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 shows a flat cable armored composite cable 10 according to the present invention. And a flat cable 14 vertically attached to the outer periphery of the wire core 12.

The core 12 is made up of a single insulated wire or optical fiber, or an aggregate of a plurality of twisted insulated wires or optical fibers.

In the flat cable 14, cores 16 for signal transmission or power transmission, such as copper wires or optical fiber cores, are arranged in parallel on a plane, and resin is collectively coated on the cores 16 by extrusion or the like. It is formed by a known manufacturing method.

The flat cable 14 shown in FIG.
In the embodiment vertically attached to 2, the flat cable 1
As shown in FIG. 2, the sheath 4 of each core wire 16 constituting the flat cable 14 has a substantially trapezoidal cross section, and is connected to another adjacent sheath 18 at the bottom of the trapezoid. It is formed in a flat shape. Therefore, as shown in FIG. 1, the flat cable 14 can be smoothly and vertically attached to the wire core 12 in a circular shape.

As shown in FIG. 1, the flat cable 14 vertically attached to the wire core 12 has the adjacent edges 20 of the vertically attached portion of the flat cable 14 so that the wire core 12 is confined. Continuously glued or heat fused,
It is put on the wire core 12. Therefore, the flat cable 1
4 acts as a sheath, and the wire core 12 is protected by the vertically attached flat cable 14, so that it is not affected by outside. Further, since the sheath is not required, the outer diameter of the flat cable-outer composite cable 10 can be reduced without reducing the amount of information to be transmitted. The bonding or fusion of the edge 20 may be performed while vertically attaching the flat cable 14 to the wire core 14, or may be performed after vertically attaching.

Next, a specific example of the embodiment shown in FIGS. 1 and 2 will be described. Twelve coaxial electric wires having an outer diameter of 1.60 mm are used as core wires constituting a flat cable.
The distance t between the center points of the twelve coaxial wires (see FIG. 2)
Was set to 1.80 mm in parallel on a plane, and the resin was collectively coated to form a flat cable having a substantially trapezoidal cross section in the coating of each coaxial cable shown in FIG. In addition, the shape of the cross section of the coating of each coaxial electric wire has an approximately trapezoidal shape with an upper side of 1.80 mm, a lower side of 2.7 mm, and a height of 1.80 mm. Thereafter, while the flat cable is vertically attached to the outer periphery of a wire core having a diameter of 6.72 mm, the adjacent edge of the vertically attached portion of the flat cable is locally heated to 140 ° C. and continuously fused. Then 1
A flat cable armored composite cable having an outer diameter of 0.68 mm was manufactured. The flat cable-covered composite cable of the present invention manufactured in this manner has a higher transmission characteristic than the conventional flat cable-covered composite cable in which a similar flat cable is vertically attached to the core and then the sheath is further covered. The diameter could be reduced by about 2 mm compared to the outer diameter without reducing the like.

In the embodiment of FIG. 1, the flat cable 14 is vertically attached to the wire core 12, but as shown in FIG.
The flat cable 14 may be wound around the wire core 12. Also in this embodiment, the adjacent edges 20 of the winding portion of the flat cable 14 are continuously bonded or fused to each other so that the flat cable 14 encloses the wire core 12. Thereby, the wire core 12 is connected to the flat cable 1.
4 protects the external cable from the external environment and eliminates the need for a conventional sheath. Therefore, it is possible to reduce the outer diameter of the flat cable-outer composite cable 10 without deteriorating transmission characteristics and the like.

Further, a specific example of the embodiment shown in FIG. 3 will be described. Eight coaxial wires having an outer diameter of 0.80 mm are used as core wires constituting a flat cable, and these eight coaxial wires are connected to each center point. The distance was 1.26 mm and the resin was collectively covered by being arranged in parallel on a plane to form the flat cable 14 shown in FIG. Thereafter, while the flat cable 14 is wound around the outer periphery of the wire core 12 having a diameter of 6.00 mm, the adjacent edge 20 of the winding portion of the flat cable 14 is locally heated to 120 ° C. to continuously To produce a flat cable armored composite cable 10 having an outer diameter of 8.52 mm. The flat cable-covered composite cable of the present invention manufactured in this manner has a higher transmission characteristic than the conventional flat cable-covered composite cable in which the same flat cable is wound around the wire core and then the sheath is further covered. The diameter could be reduced by about 2 mm compared to the outer diameter without reducing the like.

[0016]

According to the present invention, as described above, the edges of adjacent flat cables are continuously bonded or fused to each other when they are vertically attached or wound around the wire core, and the flat cables are used. Since the core is confined, the flat cable acts as a sheath for the core without dispersing.Therefore, transmission characteristics are not reduced, and there is no need to coat the sheath further, reducing the amount of information to be transmitted. There is a real benefit that the diameter of the composite cable with a flat cable exterior can be reduced without causing the flat cable.

[Brief description of the drawings]

FIG. 1 is a front view of a flat cable armored composite cable of the present invention.

FIG. 2 is a perspective view of the flat cable used in the present invention.

FIG. 3 is a side view of another embodiment of the flat cable armored composite cable of the present invention.

FIG. 4 is a front view of a conventional flat cable armored composite cable.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Flat cable armored composite cable 12 Wire core 14 Flat cable 16 Flat cable core wire 18 Flat cable coating 20 Edge

Claims (1)

(57) [Scope of request for utility model registration] 1. A flat cable armored composite cable comprising a wire core disposed at a center and a flat cable vertically attached or wound around an outer periphery of the wire core, wherein the flat cable confine the wire core. A flat cable exterior composite cable, wherein adjacent edges of a vertically attached portion or a wound portion of the flat cable are continuously adhered or fused to each other.