JPH097437A - Tape for external conductor of coaxial cable and its manufacture and coaxial cable - Google Patents

Abstract

PURPOSE: To restrain damage of a conductor metallic layer caused by bending of a coaxial cable when an external conductor of this coaxial cable is constituted by longitudinally adding a tape for the external conductor having the conductor metallic layer. CONSTITUTION: A synthetic resin layer composed of a conductor metallic layer 5a, a thermoplastic synthetic resin adhesive layer 5b and a synthetic resin reinforcing layer 5c is layered as a tape 5 for an external conductor to be longitudinally added to a coaxial cable. A shape of the conductor metallic layer 5a and a surface on the side where the conductor metallic layer 5a is layered in the synthetic resin layer, are formed into a shape where recesses-projections 6A and 6B are continuously and repeatedly juxtaposed in the tape lengthwise direction, and a shape of an opposite side surface is formed into a shape different from a shape of the conductor metallic layer 5a, for example, a plane.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to television reception and CATV.
The present invention relates to a coaxial cable used for pulling in a house, etc.

[0002]

2. Description of the Related Art Conventionally, as a coaxial cable, as shown in FIG. 9, an outer conductor tape 3 is vertically attached around a coaxial cable core composed of an inner conductor 1 and an insulator 2, and a sheath 4 is provided on the outer side thereof. The one covered is widely known. Here, as the external conductor tape 3, a thin metal tape made of aluminum or the like is generally used.
In recent years, as shown in FIG. 10, a conductor metal layer 3a has been reinforced by laminating a synthetic resin layer including, for example, a synthetic resin adhesive layer 3b and a synthetic resin reinforcing layer 3c.

[0003]

In the external conductor tape 3 as described above, the synthetic resin layers 3b and 3c are relatively easily elastically deformed, but the conductor metal layer 3a is not easily elastically deformed (that is, relatively rigid). Therefore, if the cable is bent with a small radius of curvature or repeatedly subjected to bending load, high tensile stress or compressive stress is generated in the conductor metal layer 3a, which may lead to damage such as fatigue cracks.

In JP-A-59-152629, a laminate tape for an outer conductor, in which a conductor metal layer and a synthetic resin layer are bonded together, is embossed on both the conductor metal layer and the synthetic resin layer. Although the recesses are intermittently formed, a large space is provided between the recesses, so that the overall amount of expansion and contraction of the conductor metal layer is extremely small. Therefore, the generation of tensile stress or compressive stress when subjected to a bending load can hardly be suppressed.

In view of such circumstances, it is an object of the present invention to provide an external conductor tape which is less likely to be damaged even when a bending load is applied to the coaxial cable, a method for manufacturing the same, and a coaxial cable.

[0006]

As a means for solving the above-mentioned problems, the present invention provides a coaxial cable having a conductor metal layer and a synthetic resin layer laminated on each other and vertically attached to the coaxial cable as an outer conductor. In the conductor tape, the shape of the entire conductor metal layer and the shape of the surface of the synthetic resin layer on which the conductor metal layer is laminated are made into a shape in which irregularities are continuously and repeatedly arranged at least in the longitudinal direction of the tape, In the resin layer, the shape of the surface opposite to the surface on which the conductor metal layer is laminated is different from the shape of the conductor metal layer (claim 1).

In particular, the shape of the entire conductor metal layer and the shape of the surface of the synthetic resin layer on which the conductor metal layer is laminated are such that irregularities are continuously and repeatedly arranged in both the longitudinal direction and the width direction of the tape. Then, a more excellent effect as described below can be obtained (claim 2).

Further, it is preferable that the surface of the synthetic resin layer opposite to the surface on which the conductor metal layer is laminated is flat.

It is more preferable that, of the synthetic resin layer, at least a portion including a surface on the side where the conductor metal layer is laminated is a thermoplastic synthetic resin adhesive layer (claim 4).

In the tape according to the present invention, after a flat conductor metal layer and a thermoplastic synthetic resin adhesive layer are laminated,
The thermoplastic synthetic resin adhesive layer is heated to form concavities and convexities simultaneously on the conductor metal layer and the surface of the thermoplastic synthetic resin adhesive layer to which the conductor metal layer is adhered (Claim 5). Immediately after the planar-shaped conductor metal layer is adhered to the plastic synthetic resin layer, concavities and convexities are simultaneously formed on the conductor metal layer and the surface of the thermoplastic synthetic resin adhesive layer to which the conductor metal layer is adhered. According to item 6), it can be manufactured.

Further, the present invention is a coaxial cable in which an insulator, an outer conductor, and a sheath are sequentially arranged from the inner side around an inner conductor as a center, and the outer conductor is the outer conductor according to any one of claims 1 to 4. A conductor tape is vertically attached around the insulator (claim 7).

[0012]

According to the outer conductor tape of claim 1, the shapes of the conductor metal layer and the surface of the synthetic resin layer on which the conductor metal layer is laminated are continuously repeated in the tape longitudinal direction to form irregularities. Since the shape is a shape, the conductor metal layer is in a state of being easily expanded and contracted in the tape longitudinal direction, as compared with a flat shape. Therefore, according to the coaxial cable vertically attached with the tape for outer conductor (the coaxial cable according to claim 7), even if the cable is bent with a small radius of curvature, the synthetic resin layer is elastically deformed accordingly. However, the conductor metal layer can be easily expanded and contracted, so that no large tensile stress or compressive stress is generated in the conductor metal layer.

Further, as described in claim 2, the shape of the entire conductor metal layer and the shape of the surface of the synthetic resin layer on which the conductor metal layer is laminated are set in both the longitudinal direction and the width direction of the tape. If the concavo-convex pattern is arranged continuously and repeatedly, the entire tape easily expands and contracts in the width direction as well, and it becomes easier to bend. Become.

The shape of the surface of the synthetic resin layer opposite to the surface on which the conductor metal layer is laminated matches the shape of the conductor metal layer (that is, the conductor metal layer and the synthetic resin layer as a whole). If the unevenness is formed), the tape as a whole is likely to expand and contract, and the amount of expansion and contraction of the conductor metal layer increases correspondingly, which may increase stress. However, in the tape for external conductor according to claim 1, In the synthetic resin layer, since the shape of the surface on the side opposite to the surface on which the conductor metal layer is laminated is different from the shape of the conductor metal layer, the expandable amount of the conductor metal layer is increased, but the cable The amount of expansion and contraction of the entire tape when the tape is bent is suppressed. Therefore, the amount of expansion and contraction of the conductor metal layer is small, and high stress is prevented from occurring in this conductor metal layer.

Here, if the surface of the synthetic resin layer opposite to the surface on which the conductor metal layer is laminated is a flat surface, the processing becomes very easy.

In the tape for an outer conductor according to claim 4, since at least a portion of the synthetic resin layer including a surface on the side laminated with the conductor metal layer is a thermoplastic synthetic resin adhesive layer, this thermoplastic synthetic tape is used. By heating the resin adhesive layer, not only the adhesion with the conductor metal layer becomes easy, but also
The work of forming irregularities on the thin conductor metal layer and the thermoplastic synthetic resin adhesive layer in the plastic state can be easily performed.

More specifically, as described in claim 5,
A plane to which the conductor metal layer is bonded in the conductor metal layer and the thermoplastic synthetic resin adhesive layer by heating the thermoplastic synthetic resin adhesive layer after laminating the planar-shaped conductor metal layer and the thermoplastic synthetic resin adhesive layer It is also possible to form concavities and convexities simultaneously with respect to and, and as described in claim 6, immediately after laminating the heated thermoplastic synthetic resin and the planar conductive metal layer,
Concavities and convexities can be simultaneously formed on the conductor metal layer and the surface of the thermoplastic synthetic resin adhesive layer to which the conductor metal layer is adhered.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS.

In this embodiment, the outer conductor tape 5 as shown in FIG. 1 is used. The outer conductor tape 5 comprises a conductor metal layer 5a, a thermoplastic synthetic resin adhesive layer 5b, and a synthetic resin reinforcing layer 5c, which are laminated in this order, and the conductor metal layer 5a is a thermoplastic synthetic resin adhesive layer 5b. It is in a state of being bonded to the synthetic resin reinforcing layer 5c via the.

The conductor metal layer 5a is formed to be very thin, and its material is preferably one having excellent conductivity and workability, such as aluminum or copper. Further, as the resin used in the thermoplastic synthetic resin adhesive layer 5b, a polyolefin-based resin or the like is suitable. As the resin used in the synthetic resin reinforcing layer 5c, one having higher strength than the thermoplastic synthetic resin, for example, polyester resin is suitable.

The synthetic resin layer in the present invention does not necessarily have to be composed of a plurality of layers, and may be, for example, a single layer composed of only the thermoplastic synthetic resin adhesive layer 5b.

The outer conductor tape 5 of this embodiment is characterized in that the conductor metal layer 5a and the surface on which the conductor metal layer 5a is laminated in the thermoplastic synthetic resin adhesive layer 5b (the upper surface in FIG. 1; It is called a metal layer laminated surface.)
Further, the convex portions 6A and the concave portions 6b extending in the tape width direction are continuously and alternately formed in the tape longitudinal direction. That is, it is wavy. On the other hand, the surface of the synthetic resin reinforcing layer 5c to which the synthetic resin reinforcing layer 5c is adhered in the thermoplastic synthetic resin adhesive layer 5b (the lower surface in FIG. 1; hereinafter referred to as a conductor metal layer non-laminated surface). , Is flat.

2 and 3 show the tape 5 for the outer conductor.
It shows a coaxial cable using. This coaxial cable has an inner conductor 1 in the center, and an insulator 2, the outer conductor tape 5 and a sheath 4 are laminated around the inner conductor 1 in this order from the inside in the radial direction. The outer conductor tape 5
Is vertically attached to the outer peripheral portion of the insulator 2 with the conductor metal layer 5a facing radially inward.

FIG. 4 shows an example of an apparatus for manufacturing the above coaxial cable. In this device, a coaxial insulating core supplying device 10 and an outer conductor tape supplying device 12 are provided.
Are installed side by side, and the heating device 14 and the tape corrugating roller 1 are arranged in this order from the side closer to the tape supply device 12 for outer conductor.
5 and smoothing roller 16, tape cooling device 18, guide rollers 20, 22, tape vertical attachment device 24, heating device 2
6, forming and guiding device 28, sheath extruding device 30, cooling water tank 32, cable pulling device 34, and winding device 3
6 are provided. Here, the tape corrugating roller 15 and the smoothing roller 16 are arranged at positions facing each other, and the tape corrugating roller 15 has a peripheral surface thereof as shown in FIG.
While the corrugations corresponding to the convex portions 6A and the concave portions 6B shown in (1) are formed, the peripheral surface of the smoothing roller 16 is simply a cylindrical surface (a cylindrical surface without unevenness).

Next, a procedure for manufacturing the coaxial cable by this apparatus will be described.

On the reel of the coaxial insulating core supply device 10,
A coaxial insulating core composed of the inner conductor 1 and the insulator 2 is wound around and sequentially fed out, and irregularities are formed on the reel of the outer conductor tape supply device 12 similarly to the outer conductor tape 3 shown in FIG. The outer conductor tape 5 in the absence state is wound around and sequentially fed out.

The external conductor tape 5 drawn from the external conductor tape supply device 12 is heated by the heating device 14 to make the thermoplastic synthetic resin adhesive layer 5b of the external conductor tape 5 in a plastic state.

The conductor metal layer 5a is formed by the corrugating roller 15
Then, the heated outer conductor tape 5 is passed between the rollers 15 and 16 in such a direction that the synthetic resin reinforcing layer 5c contacts the smooth roller 16 respectively. At this time, the corrugating roller 15
By pressing with the conductor metal layer 5a and the surface of the thermoplastic synthetic resin adhesive layer 5b to which the conductor metal layer 5a is adhered, the convex portion 6A and the concave portion 6B as shown in FIG.
While the irregularities made of are repeatedly formed in the longitudinal direction of the tape, the synthetic resin reinforcing layer 5c which is in contact with the simple cylindrical smoothing roller 16 is a smooth surface. As a result, the external conductor tape 5 having the shape shown in FIG. 1 is formed.

The cooling device 18 cools the entire outer conductor tape 5 having the shape shown in FIG. 1 to solidify the thermoplastic synthetic resin adhesive layer 5b.

The corrugated outer conductor tape 5 and the coaxial insulating core (composite of the inner conductor 1 and the insulator 2) drawn from the coaxial insulating core supply device 10 are combined in the tape vertical attachment device 24. With the conductor metal layer 5a facing inward in the radial direction, the outer conductor tape 5 is vertically attached in a cylindrical shape around the coaxial insulating core. Then, if necessary, the overlapping portion of the end portions of the outer conductor tape 5 is heated by the heating device 26.
And the ends are fused together.

The outer peripheral surface of the outer conductor tape 5 (that is, the outer peripheral surface of the synthetic resin reinforcing layer 5c) is formed into an appropriate shape by the forming and guiding device 28, and the sheath extruding device 30 surrounds the outer peripheral surface thereof by the synthetic resin sheath 4 Is extruded. Then, the entire cable is cooled by the cooling water tank 32 and wound on the winding device 36.

According to the above method, the thermoplastic synthetic resin adhesive layer 5b for adhering the conductor metal layer 5a and the synthetic resin reinforcing layer 5c is heated, and the entire tape is placed between the corrugating roller 15 and the smoothing roller 16. With a simple structure that allows the conductor metal layer 5a and the thermoplastic synthetic resin adhesive layer 5b to be provided with a simple structure, desired irregularities can be formed.

According to the coaxial cables of FIGS. 2 and 3 obtained by using this outer conductor tape 5, the conductor metal layer 5 is different from the conventional structure in which the outer conductor tape is entirely flat.
Since a is easily expanded and contracted in the longitudinal direction of the tape, even if this cable is bent with a small radius of curvature, the conductor metal layer 5a is reasonably accompanied by elastic deformation of the synthetic resin layers 5b and 5c accordingly. It can be expanded and contracted, so that no large tensile stress or compressive stress is generated in the conductor metal layer. On the other hand, since the surface of the thermoplastic synthetic resin adhesive layer 5b on the side opposite to the surface on which the conductor metal layer is laminated is flat, the conductive metal layer 5a can expand and contract as described above. Although the number is increased, the amount of expansion and contraction of the entire tape when the cable is bent is suppressed, so that the amount of actual expansion and contraction of the conductor metal layer 5a is also suppressed, and high stress may occur in the conductor metal layer 5a. It is prevented.

In the present invention, it should be noted that the unevenness effectively absorbs the elongation or compressive strain required for the conductor metal layer 5a when the coaxial cable is bent, and the unevenness of the conductor metal layer 5a is effectively absorbed. It is to give unevenness (waveform in the first embodiment) of an appropriate shape in consideration of reduction of physical processing strain due to work hardening.

For example, as shown in FIG. 5A, it is assumed that the conductor metal layer 5a is provided with a sinusoidal waveform having a period P and a wave depth of 2 · a. At this time, the above waveform is

[0036]

## EQU1 ## It is represented by y = asin (2π / P) x. On the other hand, the length s of the curve of the waveform per period P
Is

[0037]

[Equation 2]

Since the length S of the curve along the waveform of the conductor metal layer 5a is approximately expressed by the following equation,

[0039]

[Formula 3] S / P = 1 + A (a / P) + B (a / P) ² +
It is possible to give a margin s / P represented by C (a / P) ³ (where A, B, and C are constants). This s / P and the value a / P
The relationship with and is shown in the graph. From this graph, it is possible to determine the waveform according to the specifications of the cable. For example, when the cable is bent with a radius of curvature that is five times its radius, 20% elongation occurs on the surface of the coaxial cable, and the above waveform requires a margin of s / P = 1.2. From the above graph, it can be seen that the waveform a / P should be set to 0.15. Therefore, if the period P of the waveform is 1.0 mm, the depth 2 · a of the wave of 0.3 mm is sufficient.

Next, a second embodiment will be described with reference to FIG.

In the first embodiment, the conductor metal layer 5 is previously formed.
Although a, the thermoplastic synthetic resin adhesive layer 5b, and the synthetic resin reinforcing layer 5c are laminated and then the thermoplastic synthetic resin adhesive layer 5b is heated to form unevenness, in this embodiment, the heated heat is applied. Conductor metal layer 5a via plastic synthetic resin adhesive layer 5b
Immediately after the adhesive layer and the synthetic resin reinforcing layer 5c are bonded together, the unevenness is formed as it is. The specific procedure is as follows.

In place of the external conductor tape supply device 12 of the first embodiment, a conductor metal layer supply device 12A and a synthetic resin reinforcement layer supply device 12C are provided side by side, and the conductor metal layer 5a and the synthetic resin reinforcement layer 5c are added to them. Wrap each.

On the synthetic resin reinforcing layer 5c drawn from the synthetic resin reinforcing layer supplying device 12C, the thermoplastic synthetic resin heated by the thermoplastic synthetic resin supplying device 13 is supplied in the form of a thin film to form the thermoplastic synthetic resin adhesive layer. 5b is formed.

By the cooling device 38, the synthetic resin reinforcing layer 5c
Although the side is cooled, the thermoplastic synthetic resin adhesive layer 5b is kept in a heated state, and the conductor metal layer 5a is bonded onto the thermoplastic synthetic resin adhesive layer 5b by a pair of adhesive rollers 40 as it is. It is passed between the corrugating roller 15 and the smoothing roller 16. The subsequent steps are the same as in the first embodiment.

According to such a method, the conductor metal layer 5a and the synthetic resin reinforcing layer 5 are heated by heating the thermoplastic synthetic resin once.
It is possible to favorably perform both the adhesion with c and the concavo-convex molding on the conductor metal layer 5a and the thermoplastic synthetic resin adhesive layer 5b, and further reduce the manufacturing cost.

Next, a third embodiment is shown in FIG. In the tape 5 for an outer conductor shown in this embodiment, the convex portion 6 formed on the conductor metal layer 5a and one surface of the thermoplastic synthetic resin adhesive layer 5b.
A and the concave portions 6B are continuously and alternately arranged not only in the tape longitudinal direction but also in the tape width direction. That is, the convex portions 6A shown in the first embodiment are further arranged in the tape width direction to form irregularities.

In such an outer conductor tape 5, since the conductor metal layer 5a easily expands and contracts in the tape width direction and has a high flexibility, the outer conductor tape 5 is applied to the insulator 2. There is an advantage that the bending rigidity becomes low when vertically arranging it in a cylindrical shape around the periphery, which makes the work easier.

Next, a fourth embodiment is shown in FIG. Here, the quadrangular pyramid-shaped convex portions 7A are arranged vertically and horizontally on the conductor metal layer 5a and the one surface of the thermoplastic synthetic resin adhesive layer 5b without gaps.
A concave groove 7B running in the vertical and horizontal directions is formed at the boundary of each convex portion 7A.

As described above, in the present invention, regardless of the specific shape of the concavities and convexities, it is sufficient that the concavities and convexities are repeatedly arranged at least continuously in the tape longitudinal direction.

The present invention is not limited to the above-described embodiments, but the following modes can be adopted as examples.

(1) The surface of the synthetic resin layer opposite to the surface on which the conductor metal layer is laminated (in the above embodiment, the conductor metal layer non-laminated surface of the thermoplastic synthetic resin adhesive layer 5b and the synthetic resin reinforcing layer 5c) Does not necessarily have to be a flat surface, and if the shape is different from that of the conductor metal layer 5a, the amount of elastic deformation of the synthetic resin layer can be suppressed. However, if the flat surface is used as in each of the above-described embodiments, the processing is easy and a roller having a complicated shape is unnecessary, and the processing can be performed using a simple smoothing roller 16 as shown in FIG.

(2) In the above embodiment, the outer conductor tape 5 is used.
Is vertically attached with the conductor metal layer 5a facing radially inward, but may be vertically provided with the conductor metal layer 5a facing radially outward. In this case, since the extruded sheath 4 enters the concave portion 6B formed in the conductor metal layer 5a and the concave and convex surfaces closely contact each other, the displacement of the conductor metal layer 5a with respect to the sheath 4 can be suppressed more reliably.

[0053]

As described above, according to the present invention, the following effects can be obtained.

In the outer conductor tape for a coaxial cable according to claim 1, the conductor metal layer and the synthetic resin layer are laminated on each other, and the conductor metal layer is laminated on the overall shape of the conductor metal layer and the synthetic resin layer. The shape of the surface on the side
Since the irregularities are continuously and repeatedly arranged at least in the longitudinal direction of the tape, the conductor metal layer can be more easily expanded and contracted in the tape longitudinal direction as compared with the conventional tape, and moreover, the conductor metal layer in the synthetic resin layer. Since the shape of the surface on the side opposite to the surface on which is laminated is made different from the shape of the surface on the side on which the conductor metal layer is laminated in this synthetic resin layer, the entire tape expands and contracts in the longitudinal direction. Can be suppressed. Therefore, according to the coaxial cable in which the tape for outer conductor is vertically attached (the coaxial cable according to claim 7), even if the cable is bent with a small radius of curvature, a large tensile stress or compressive stress is generated in the conductor metal layer. There is an effect that it is possible to avoid the above, and to prevent the fatigue damage and the like from occurring in the conductor metal layer.

Further, in the outer conductor tape according to the second aspect, the shape of the entire conductor metal layer and the shape of the surface of the synthetic resin layer on which the conductor metal layer is laminated are defined by the longitudinal and width directions of the tape. Since the concavities and convexities are continuously and repeatedly arranged on both sides, the entire tape easily expands and contracts in the width direction as well. Therefore, it is more convenient to vertically attach the outer conductor tape around the insulator of the coaxial cable in a cylindrical shape. There is an effect that can be easily done.

Further, in the outer conductor tape according to the third aspect, the surface of the synthetic resin layer opposite to the surface on which the conductor metal layer is laminated is a flat surface. It has the effect of being easy and inexpensive.

In the tape for outer conductor according to claim 4, since at least the portion of the synthetic resin layer including the surface on the side laminated with the conductor metal layer is the thermoplastic synthetic resin adhesive layer, this thermoplastic synthetic tape is used. By heating the resin adhesive layer, not only the adhesion with the conductor metal layer becomes easy, but also
There is an effect that the work of forming irregularities on the conductor metal layer and the thermoplastic synthetic resin adhesive layer can be easily performed.

More specifically, as described in claim 5,
A plane to which the conductor metal layer is bonded in the conductor metal layer and the thermoplastic synthetic resin adhesive layer by heating the thermoplastic synthetic resin adhesive layer after laminating the planar-shaped conductor metal layer and the thermoplastic synthetic resin adhesive layer And a method of simultaneously forming concavities and convexities on the surface of the conductor, and immediately after laminating a heated thermoplastic synthetic resin and a planar conductor metal layer as described in claim 6, the conductor metal layer and the thermoplastic synthetic resin adhesive layer. The outer conductor tape can be easily and inexpensively manufactured by the method of simultaneously forming irregularities on the surface to which the conductor metal layer is adhered.
Particularly, in the method according to claim 6, both the bonding of the conductor metal layer and the concavo-convex molding can be performed by heating the thermoplastic synthetic resin once, and the outer conductor tape can be manufactured more efficiently at low cost. effective.

[Brief description of drawings]

FIG. 1 is a cross-sectional perspective view of an outer conductor tape of a coaxial cable according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional front view of a coaxial cable using the external conductor tape.

FIG. 3 is a sectional side view of the coaxial cable.

FIG. 4 is an overall configuration diagram of an apparatus for manufacturing the coaxial cable.

5A is a sectional view showing a detailed shape of a waveform formed on the outer conductor tape, and FIG. 5B is a graph showing a characteristic of a length margin of the waveform.

FIG. 6 is an overall configuration diagram of an apparatus for manufacturing a coaxial cable according to a second embodiment of the present invention.

FIG. 7 is a cross-sectional perspective view of an outer conductor tape of a coaxial cable according to a third embodiment of the present invention.

FIG. 8 is a sectional perspective view of a tape for outer conductor of a coaxial cable according to a fourth embodiment of the present invention.

9A is a side view showing an example of a conventional coaxial cable, and FIG. 9B is a sectional front view of the coaxial cable.

FIG. 10 is a cross-sectional perspective view of an external conductor tape used in the coaxial cable.

[Explanation of symbols]

 1 Inner Conductor 2 Insulator 4 Sheath 5 Tape for Outer Conductor 5a Conductor Metal Layer 5b Thermoplastic Synthetic Resin Adhesive Layer 5c Synthetic Resin Reinforcing Layer 6A, 7A Projection 6B Recess 7B Recess

Claims (7)

[Claims] 1. A tape for an outer conductor of a coaxial cable in which a conductor metal layer and a synthetic resin layer are laminated on each other and which is vertically attached to a coaxial cable as an outer conductor, wherein the overall shape of the conductor metal layer and the synthetic resin layer are The surface of the side on which the conductor metal layer is laminated has a shape in which irregularities are continuously and repeatedly arranged at least in the longitudinal direction of the tape, and the surface of the synthetic resin layer on the side opposite to the side on which the conductor metal layer is laminated is formed. A tape for an outer conductor of a coaxial cable, wherein the shape of the surface is different from the shape of the conductor metal layer. 2. The outer conductor tape for a coaxial cable according to claim 1, wherein the shape of the entire conductor metal layer and the shape of the surface of the synthetic resin layer on which the conductor metal layer is laminated are defined in the longitudinal direction of the tape. A tape for an outer conductor of a coaxial cable, characterized in that irregularities are continuously and repeatedly arranged in both the width direction and the width direction. 3. The outer conductor tape for a coaxial cable according to claim 1 or 2, wherein the surface of the synthetic resin layer opposite to the surface on which the conductor metal layer is laminated is flat. Tape for outer conductor of coaxial cable. 4. The outer conductor tape for a coaxial cable according to any one of claims 1 to 3, wherein a portion of the synthetic resin layer including at least a surface to be laminated with the conductor metal layer is thermoplastically synthesized. A tape for an outer conductor of a coaxial cable, which is a resin adhesive layer. 5. The method for manufacturing the outer conductor tape for a coaxial cable according to claim 4, wherein the conductor metal layer having a planar shape and the thermoplastic synthetic resin adhesive layer are laminated and then the thermoplastic synthetic resin adhesive is laminated. A method for producing a tape for an outer conductor of a coaxial cable, comprising heating the layer to simultaneously form irregularities on the conductor metal layer and a surface of the thermoplastic synthetic resin adhesive layer to which the conductor metal layer is adhered. 6. A method for producing a tape for an outer conductor of a coaxial cable according to claim 4, wherein the conductor metal layer and the above-mentioned conductor metal layer are formed immediately after the planar conductor metal layer is bonded to the heated thermoplastic synthetic resin layer. A method for manufacturing a tape for an outer conductor of a coaxial cable, characterized in that unevenness is simultaneously formed on a surface of a thermoplastic synthetic resin adhesive layer to which a conductor metal layer is adhered. 7. The outer conductor tape according to claim 1, wherein the outer conductor is a coaxial cable in which an insulator, an outer conductor, and a sheath are sequentially arranged from the inner side around the inner conductor. A coaxial cable in which the above is vertically attached around the insulator.