JPH0416887B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention comprises an elongated carrier member having one or more longitudinally extending channels or holes, and a carrier member having one or more longitudinally extending channels or holes along the one or more longitudinally extending channels or holes. The present invention relates to a method for manufacturing an elongate cable containing one or more elongate elements and in which the cross-sectional area of the channel or hole has a diameter greater than the diameter of the elongate element.

As used herein, the term elongated cable, carrier member or element refers to the longitudinal direction
is to be understood as an article whose dimensions are substantially larger than its transverse or diametric dimensions. The length-diameter ratio shall be at least 500, and may be 50,000 or more.

Such articles with considerable longitudinal dimensions are
For example, the carrier member can be formed by extrusion to create a separate tube around a single elongated element. The element is passed through a central opening of a nozzle that extrudes a separate tube around the element.

This known method is disadvantageous if the element is a fragile material, since the element is susceptible to damage. Furthermore, from a technical point of view, this known method is unsuitable or impossible to manufacture complex cables in which a large number of elements are arranged far apart from each other but in close proximity.

OBJECT AND ARRANGEMENT OF THE INVENTION It is therefore an object of the invention to produce a cable suitable for handling sensitive elements and of a more complex construction than a single tube with one elongated element as described above. The purpose is to obtain a cable manufacturing method suitable for.

To achieve this objective, the cable manufacturing method according to the invention comprises making the carrier member and the elongate element flexible, placing the carrier member in a roll on a support table connected to a vibrating device, The ends of the elongated elements are unwound from the supply unit and inserted into the ends of the channels or holes of the rolled carrier member to impart periodic motion to the carrier member via the support table. and the effect of the mass inertia of the elongate element causes the elongate element to advance longitudinally into the channel or hole of the carrier member.

According to the method of the present invention, it can be applied to manufacturing an optical cable in which the above-mentioned elongated element is an optical fiber.

A preferred embodiment of the method of the invention comprises an elongated carrier member having one or more longitudinally extending channels or holes, one or more longitudinally extending channels or holes along the one or more channels or holes. In a method of manufacturing an elongated cable containing elongated electrical and/or optical conductors, the method comprises: inserting one or more conductors a small distance into the end of a channel or hole;
causing the carrier member or a portion of the carrier member to periodically move and periodically return to an initial position;
The action of the mass inertia of the conductor and this periodic motion forces the conductor into the channel or hole.

<Technical Background> Since the cable manufacturing method according to the present invention has an important meaning in optical cables, the following will mainly explain the optical cable manufacturing method. However, the present invention is not limited to the method of manufacturing optical cables. First, conventional technology in the field of optical cable manufacturing will be explained.

Conventional optical cable manufacturing has the problem of having to work with extremely fragile optical fibers. This optical fiber is susceptible to optical and mechanical damage. Optical fibers are typically made of glass fiber and have a thin primary coating applied to protect the surface. Furthermore, the optical fiber can also be made of synthetic resin. The diameter of the optical fiber including the primary coating is approximately 125 μm and is extremely susceptible to breakage. Under mechanical stress, the quality of optical fibers is considerably impaired and is particularly adversely affected by moisture (stress corrosion).

In addition to their susceptibility to thermal and mechanical loads, optical fibers also suffer from considerable differences in coefficients of thermal expansion for the materials used to protect the fibers in the manufacture of optical cables. be. In the production of optical as well as electrical cables, synthetic resins are often used as coating materials; in particular in the case of thermoplastic synthetic resins, the coefficient of thermal expansion is several times higher than that of optical fibers. Therefore, when subjected to temperature fluctuations, the length fluctuations of the synthetic resin coating of the optical fiber are considerably greater than the length fluctuations of the optical fiber itself, which impairs the optical and mechanical quality of the fiber in an unacceptable manner. For this reason, some systems use a loose secondary coating as a supporting envelope for the optical fiber, allowing some free movement of the optical fiber within the secondary coating.

In known technology, an optical cable is constructed from an optical fiber and a loose synthetic resin sheath formed around the optical fiber by extrusion molding. However, due to the brittle nature of optical fibers, the extrusion process must be performed very carefully and process parameters must be closely monitored. Another disadvantage of this known method is that the high temperature synthetic resin that is extruded imposes a thermal load on the optical fiber. Furthermore, considerable shrinkage occurs during cooling and curing of the extruded coating. Post-extrusion shrinkage of this extruded coating often lasts for a long time.

The basic cables produced in this manner are often twisted around a central reinforcing member, for example of metal or reinforced synthetic resin. Cables produced in this way may be provided with one or more protective coverings, twisted to form a larger cable and provided with a mantle around it, or both. .

Furthermore, as another method for manufacturing cables, there is a method in which a synthetic resin-coated aluminum sheet is folded to form a groove-shaped section, that is, a channel with open tops parallel to each other and having, for example, a trapezoidal cross section, extending along the length of the aluminum sheet. . In this embodiment, optical fibers are placed in these channels, and the lamina is then covered by a secondary lamella, which is also folded, so as to produce a closed channel with a hexagonal cross-section. The secondary lamina is connected to the primary lamina by adhesive or welded to the primary lamina by heat treatment. If desired, several cable elements can also be stacked on top of each other so that the cross-section forms a honeycomb structure. However, this method involves considerable difficulty because the secondary flakes must be precisely and carefully positioned and glued or otherwise joined to the primary flakes. Furthermore, care must be taken not to damage the optical fiber.

Furthermore, other conventional optical cable manufacturing methods include:
First, a central core of synthetic resin material reinforced with metal, for example, is prepared. A spiral or SZ-shaped groove extending in the longitudinal direction of this core is formed on the surface of the synthetic resin. Optical fibers are placed in these grooves, and then the grooved core surface is covered with an extruded synthetic resin mantle. However, this method also results in a thermal load on the optical fiber and a considerable shrinkage of the synthetic resin jacket.

The above-mentioned known methods have the disadvantage that, even if a loose sheathing is provided beforehand, from the first stage of cable formation there are optical fibers which are extremely susceptible to damage. This is a serious problem as mentioned above. Other significant problems with known methods are:
The problem is that it is difficult or impossible to arrange the optical fiber with the necessary extra length within the carrier member. Providing an extra length of optical fiber by a required length is important, for example, in order to bend the optical cable and to improve its thermo-mechanical properties. Since it is necessary to expose the optical fiber to minimal thermal or mechanical loads, manufacturing methods and surrounding or coating materials should be even more selective.

DE 2635979 describes an optical cable in which a plurality of optical fibers or bundles of optical fibers are housed in a metallic protective jacket. 1 and 2 of this German patent publication, it can be seen that the diameter of the protective jacket is considerably larger than the diameter of the optical fiber. Furthermore, it is not clear how the optical fibers will be provided in the embodiment shown in FIG. 1, which uses a seamless metal protective jacket.

Furthermore, in German Patent Publication No. 3000109,
A method of manufacturing an optical cable is described that utilizes a liquid flow to insert one or more optical fibers into a metal capillary tube. However, this method requires a slow insertion speed of about 5 m/min. Also, the total length of optical fiber that can be inserted using this method is relatively short. As the overall length, the 9th
The page says 150m. Furthermore, it is stated that if the hydraulic pressure is extremely high, a longer optical fiber can be inserted. However, the disadvantage is that applying such high pressures requires the use of expensive metal tubes with large wall thicknesses. Additionally, the presence of moisture (water) poses a risk of stress corrosion in the optical fiber. Also, the requirement for liquid flow makes this method unsuitable for practical applications. Furthermore, in this case as well, it is not possible to arrange the required extra length of optical fiber within the metal tube.

<Actions and Effects of the Invention> The method of the present invention does not have the above-mentioned drawbacks. The advantages of the method of the present invention will be explained below.

The method of the present invention allows for the necessary extra length of optical fiber to be easily placed within the carrier member.

According to the method of the present invention, it can be carried out at normal temperature and normal pressure. No liquid flow is required. Furthermore, no thermal load is applied to the optical fiber, and there is no compressive or tensile stress due to shrinkage phenomena.

With the method of the invention, the entire cable, excluding the conductor, can be manufactured in a first step, and as a final step the optical conductor or optical fiber can be introduced into the relevant hole or channel.

The terms "cable" and "conductor" used herein
is to be understood as meaning both optical and electrical cables and both optical and electrical conductors. However, the method according to the invention is primarily suitable for optical cables and optical conductors (optical fibers).

The method of the invention allows the use of carrier members of various constructions and of materials of various nature and composition. The only condition is that the carrier member be provided with longitudinally extending grooves or channels in which conductors are introduced and disposed. In selecting the structure and materials of the carrier member, there is little or no need to take into account the fragile nature of conductors, especially optical fibers. That is, since the optical fiber is inserted at a later stage, no pressure load is applied to the carrier member during insertion of the fiber.
This is in sharp contrast to the pressure loads that occur when introducing an optical fiber with a liquid stream, as described in DE 3000109 mentioned above.

As far as the carrier element is concerned, a wide variety of materials can be used, for example organic materials, especially synthetic resins or synthetic resins with tension fiber reinforcement, and inorganic materials, especially glass or metals.

As mentioned above, one or more elongate elements, such as conductors, inserted into channels or holes in the carrier member, may be inserted into the carrier member by periodic movement of the carrier member (with the carrier member periodically returning to its initial position). can be moved in the vertical or longitudinal direction. The mass inertia of the elongated element, for example a conductor, plays an important role. Due to this mass inertia, the elongate element is not able to follow the periodic movement of the carrier member, but instead moves relative to the carrier member, moving in the longitudinal direction of the carrier member. As a result, an elongated element inserted at the end of the channel or hole can be passed through the carrier member. An example of a periodic motion on a carrier member is eccentric rotation, in which the elongated element,
For example, a conductor moves within a channel or hole due to vibrations.

Very suitable periodic motions include vibrations or periodic pulsations. The vibration may be either linear or rotational. Pulsation is obtained by applying periodic impulses (mv, where m is mass and v is velocity) to the carrier member in the longitudinal direction.
The carrier member returns to its initial position after each impact.
This can be compared to the movement of a hammerhead. That is, when the floor is struck with the handle of a hammer, for example, periodic impacts are applied to the handle in the vertical direction, causing the hammer head to move along the handle.

In a preferred embodiment of the invention, harmonic vibrations are applied to the carrier member, the direction of the vibration being oblique to the longitudinal direction of the carrier member.

Preferably, the direction of vibration is inclined at an angle of 1 to 2 degrees with respect to the longitudinal direction of the carrier member. In a further preferred embodiment, the frequency of the harmonic vibration is 1 to 500 Hz, and the horizontal component of the amplitude is 0.1 to 10 mm.
shall be.

The frequency is preferably 10 to 150 Hz, and the horizontal component of the amplitude is preferably 0.5 to 4 mm.

The velocity of an elongate element or conductor along a channel or hole depends on various factors, such as the type of periodic motion exerted on the carrier member, the mass inertia of the element, the friction between the elongate element and the walls of the channel or hole, and the channel relative to the diameter of the elongate element. or the ratio of the diameters of the holes, the periodic motion, for example the angle between the direction of the linear harmonic vibration and the longitudinal direction of the carrier member, and the frequency and amplitude of the periodic motion.

When using the harmonic oscillations described above, the speed is preferably about 10 to 40 m/min for the optical fiber. The range of travel distances can be quite large, for example from 200 to 2000 m.

The diameter of the channels or holes can be very small. The ratio of the diameter of the channel or hole to the diameter of the elongated element or conductor may be between 2 and 8:1, preferably between 2 and 6:1. The diameter of the optical fiber includes the fiber and its primary coating. Typically the fiber diameter including the primary coating is 250 μm. In this case, the diameter of the channel or hole is 0.5 to 2 mm, preferably 0.5 to 1.5 mm.

Preferably, the friction between the elongated element and the wall of the channel or hole is low to prevent binding of the elongated element. In this regard, in the case of optical fibers, the primary coating may be a hard coating formed by a radiation-polymerizable lacquer, such as an acrylate-based lacquer.

The method of the invention can be carried out even by unskilled workers. The equipment for carrying out this method is also inexpensive and durable.

In a preferred embodiment of the invention, a carrier member is removably coupled to a vibrating device, and the elongated element or conductor is driven into the channel or hole under the influence of the mass inertia of the elongated element or conductor and the periodic motion exerted by the vibrating device. .

Suitable vibratory devices are used for feeding small articles, e.g. electrical components, one after the other, e.g. parts having front and rear parts all arranged in a line in the same back-to-back relationship, to processing or packaging equipment. There is a vibrating hopper.

In a preferred embodiment, the carrier member is wrapped around a support member connected to a vibrating device, and the elongated element or conductor is moved by the periodic motion imparted to the carrier member via the vibrating table and by the action of the mass inertia of the elongated element or conductor. Enter along a channel or hole.

Examples of vibrating tables are support plates, columns, or cylindrical members such as reels.

In the method of the invention, the carrier member may be one or more tubes, and one or more elongated conductors may be inserted into the tube to impart periodic motion to the carrier member.

In the simplest embodiment, the carrier member is a single tube made of, for example, plastic or crosslinked synthetic resin, or polyethylene, polypropylene, polyvinyl chloride, polyvinylidene fluoride, polycarbonate, polysulfone, polymethyl methacrylate, or polyester. The tube is made of tetrafluoroethylene. One or more conductors are introduced into the finished tube under the action of periodic motion to form a cable.

In the production of this cable, no thermal loads are applied to the conductors, especially the optical fibers. The pipe used shall be a product that is chemically stable at temperatures equivalent to atmospheric temperatures. Therefore, no shrinkage of the tube occurs during cable manufacture. If desired, the tubing may be aged prior to cable manufacture to prevent shrinkage problems that may occur after manufacture.

In a preferred embodiment, the length of the tube is at least
The length shall be 200 m, and the inner diameter of the pipe shall be 2 to 8 times the diameter of the conductor.

In the case of optical fibers, such tubes are used as a loose, self-supporting secondary coating.

In a further preferred embodiment, the tube is made of inorganic material or of synthetic resin with reinforcing fibers.

Suitable inorganic materials include glass or metal.

The metallic secondary coating is formed, for example, by a stretching process. In this method, a die is used to reduce a large diameter metal tube to a smaller diameter tube while simultaneously reforming the tube into a longer length tube. Alternatively, the metallization can be formed by an extrusion process (processing temperatures are generally high). The melting point of metals or glasses is considerably higher than that of plastic synthetic resins. However, during the manufacture of the secondary coating, there are no conductors or optical fibers present, so the high temperatures have no effect. Furthermore, the secondary coating is made by folding the metal tape lengthwise.
Alternatively, it may be formed by rolling transversely, the edges overlapped, and the seams sealed by welding or soldering or using adhesive. Some pressure must be applied when applying the adhesive to the overlapping portions of the coating. But this is not a problem. That is, as explained above, there is no optical fiber within the secondary coating at this stage. This also applies to the thermal energy generated during welding or soldering. Secondary coating of metal or glass as required.
Synthetic resin layers, such as extruded inner coatings and/or
Or it can be provided on the inside and/or outside of the outer covering. The inner coating provides a base layer for folding or rolling the metal tape and for bonding the overlaps. If desired, the rough surface of the metal coating can be covered with a synthetic resin layer.

The secondary coating (tube) made of metal or glass has high tensile strength and excellent watertightness. A further important advantage is that the expansion coefficient can be well matched to the optical fiber. Some secondary coatings made of glass exhibit the same coefficient of expansion as the optical fiber. Suitable metals include, for example, Al, Cu and steel.
Other examples of secondary coatings with good tensile strength include tensile fibers such as glass fibers, carbon fibers,
Alternatively, there are coatings formed from synthetic resins containing polyamide fibers, or from special tensile synthetic resins, such as polyacrylic ether.

The carrier member used in the method of the invention includes a reinforcing member and one or more hollow spaces extending parallel to the reinforcing member or provided in a helical or SZ-shaped manner on or around the reinforcing member. A tube is provided, an optical fiber is inserted into the end of this tube,
Applying periodic motion to the carrier member.

In a preferred embodiment, the conductor or optical fiber is inserted into the hollow tube at a later stage. That is, the conductor is inserted after the hollow tubes are assembled using a mold.

This method involves providing a core with one or more grooves on its surface, covering the surface of the core with one or more protective layers, and making the grooves parallel to the axis of the core or spiral or It can also be applied to embodiments in which a carrier member formed in the shape of an SZ is used, a conductor, in particular an optical fiber, is inserted into the groove and the carrier member is subjected to periodic motion.

The SZ-shaped arrangement of optical fibers is a known configuration and one that has advantages. This shape is a spiral in which left-handed pitches and right-handed pitches appear alternately. The protective layer is, for example, an extruded layer of synthetic resin and/or a rolled foil. The groove is covered with one or more protective layers so that a closed channel or hole is formed extending in the longitudinal direction of the carrier member. Insert one or more optical fibers into the channel or hole.

In a preferred embodiment of the invention, the carrier member is an elongated member of synthetic resin having one or more longitudinally extending channels;
The synthetic resin member is formed by extrusion and stretching, and one or more conductors are inserted into one end of the channel to impart periodic motion to the carrier member.

A method of stretching a synthetic resin body after extrusion molding is called a drawdown method or a spinning method. A tensile force is applied to the synthetic resin body which increases the length considerably and at the same time reduces the cross-sectional area. When stretching a tubular body made of synthetic resin, the length increases many times, while at the same time the diameter and wall thickness decrease. Elongated members of synthetic resin can be manufactured by a fast and inexpensive drawdown process. The stretching process is performed on long lengths, e.g. several kilometers long, with small diameters extending in the longitudinal direction, e.g.
It is suitable for manufacturing elongated members made of synthetic resin having channels with a diameter of about 1.5 mm.

A cable or cable element, especially an optical cable element, having a carrier member made of a drawn (drawdown) synthetic resin formed by the method of the invention is a novel article.

In a preferred embodiment of the method of the invention, the carrier member is a ribbon-like member of stretched plastic having several parallel juxtaposed channels, one or more conductors being inserted at the ends of the channels; Applying periodic motion to the carrier member.

Ribbon cables are suitable for further processing to make larger optical cables as required. For example, ribbon-like members may be stacked and this stacked body may be surrounded by a synthetic resin tube reinforced with steel wire or glass fiber. One or more ribbon-shaped elements are wrapped around a central core, for example made of plastic-coated steel wire, and then an outer coating of plastic is applied by extrusion.

It is not necessary to dispose one or more optical fibers in every channel or hole in the elongated carrier member. Depending on the requirements and the requirements of the user, some of the available channels or holes can also be provided with conductors, in particular optical fibers. Therefore, flexibility can be increased. A technical and economical advantage of this method is that standardized carrier elements can be used. For example, the length is 1000m,
A synthetic resin ribbon-shaped carrier member having 100 channels is prepared. Conductors can be placed in any number of the 100 channels.

Additionally, in a preferred embodiment of the invention, one or more auxiliary wires are inserted into one or more of the remaining channels or holes in which the conductors are disposed. The introduction of the auxiliary wire also takes place in the same way as the introduction of the optical fiber, ie by the periodic movement of the carrier member and the mass inertia of the auxiliary wire. An interesting use of auxiliary wires is as indicator (marker) wires, such as colored glass fibers. If the mass inertia of the auxiliary wire is insufficient, such as when using a cloth auxiliary wire, one end of the wire is provided with an element that increases the mass inertia, for example a thick needle with a rounded tip. As required,
A similar method can also be used when inserting conductors, for example optical fibers.

As mentioned above, the method of the present invention has the advantage that it is possible to simply install an optical fiber having the required extra length. To do this, according to the method of the invention, the optical fiber is inserted over the entire length of the channel or hole and, after closing or blocking the outlet end of the channel, the fiber does not enter the channel or hole any further. The periodic motion continues for some time until it becomes . This maximizes the excess length.
The inlet end of the channel or hole is then blocked and the outlet end is opened. The cyclic motion is then applied again until the entire excess length of the fiber protrudes from the exit end. This operation allows you to know the maximum excess length. Based on this maximum excess length, the required excess length can be introduced very precisely by controlling the moment of opening of the block at the outlet end.

Another advantage of the method of the invention is that if the optical fiber inserted into the channel or hole becomes damaged or breaks, it can be easily pulled out of the channel or hole by applying a periodic motion to the carrier member. At this time, at least one end of the channel or hole remains open.

Furthermore, the invention relates to an elongate member manufactured by the method of the invention.

Additionally, the device includes an elongate carrier member having one or more longitudinally extending channels or holes, and one or more elongate elements along the one or more channels or holes. An apparatus for producing an elongated cable which is housed and whose cross-sectional area of the channel or hole has a diameter greater than the diameter of the elongated element, comprising: a vibrating table; and actuating means for imparting a periodic motion to the vibrating table; The present invention is characterized by comprising a connecting means for detachably connecting the elongated carrier member to the vibration table.

In a preferred embodiment of the device of the present invention, the actuating means is a vibration generator or a pulsation generator, and these generators apply vibrations or pulsations to the vibrating table. The vibrating table can be, for example, a support plate or a cylindrical body. An elongated carrier member may be wrapped or disposed around the vibratory table, and the carrier member is secured to the support member by means of coupling means. As a result, the periodic motion of the vibrating table is transmitted to the carrier member. The coupling means may be a clamping device, for example a clamp foot or a pressure plate. The pressure plate holds the carrier member firmly on the vibrating table, for example by means of a vacuum pump.

Example 1 Next, embodiments of the present invention will be described with reference to the drawings.

Reference numeral 1 in FIG. 1 indicates a ribbon-shaped carrier member made of reinforced polysulfone resin. The width of this carrier member 1 is 7.3 mm, the thickness is 1
mm, and the length is 1000m. This carrier member 1
has eight channels 2 which are parallel to each other in the longitudinal direction of the carrier member and each exhibit a circular or rectangular cross section of 0.8×0.8 mm.

Reference numeral 3 in FIG. 2 designates a support member, which has an electromagnet 4 and two leaf springs 5. In FIG. The ends of the electromagnet 4 and leaf spring 5 far from the support member 3 are placed on a horizontal vibration table 6.
Connect to. The spring angle β that the leaf spring 5 makes with respect to the perpendicular on the vibration table 6 is 5°.

The spiral carrier member 1 shown in FIG. 1 is attached to a vibrating table 6. The diameter of the vibrating table 6 is 1.5 m.The carrier member 1 is firmly held on the vibrating table 6 by a clamp plate 7 and a clamp presser 8, and the clamp presser 8 is engaged with the edge of the clamp plate and the vibrating table 6. . Eight reels 9 are supported by a holder 10 above the clamp plate 7. Each reel 9 carries 11 km of optical fiber 11. The diameter of this optical fiber is 125μm
and shall have a primary coating of UV-curing lacquer. The total diameter of the fiber including the coating is 250 μm. The operation of the device is as follows. Place the end of each fiber a short distance, e.g. 50 cm.
and inserted into the channel 2 of the carrier member 1. Next, harmonic vibration is applied to the vibration table 6 and the carrier member 1 clamped to the vibration table by energizing the electromagnet, and the direction of the vibration is as follows.
It is assumed that it is substantially perpendicular to the leaf spring 5. The frequency is 100Hz. The horizontal vibration from peak to peak is approximately 1.6 mm. Vibrations caused by the carrier member 1 and the action of its mass inertia cause the optical fibers 11 to travel along their respective channels 2. The approach speed shall be 25m/min. After the fiber has entered the entire length of the carrier member, it blocks the channel 2 and the output end 12 of the carrier member 1. This vibration continues until the fiber 11 no longer moves within the channel 2. In this state, the total length of the optical fiber 11 within the channel 2 is at its maximum. The fibers then abut against the outer side walls of the spiral channel 2 of the spiral carrier member 1. The input end 13 of the carrier member 1 is then blocked and the output end 12 is released. After this, vibration is applied to the carrier member again. As a result, the end of the optical fiber 11 is located at the output end 1 of the carrier member 1.
Get out of 2. This vibration is continued until a state is reached where the fiber 11 no longer moves. The length of the fibers in the carrier member is then at a minimum and the fibers abut against the inner side walls of the spiral channel 2. The length of the fiber protruding from the output end 12 of the carrier member 1 is measured. This measured value is taken as the maximum length of the fibers 11 in the carrier member 1. The outlet end of the carrier member 1 is then blocked and the inlet end is opened. At this time, the carrier member 1 is vibrated and the optical fiber is introduced into the carrier member 1 by a required extra length.
Analogously to the method described above, an electrical conductor, for example a copper wire, can be introduced into the ribbon-shaped carrier element 1 instead of an optical fiber to obtain an electrical ribbon cable. The electrical ribbon cable according to the invention has significant advantages compared to known ones. Known electrical ribbon cables are made by extruding a synthetic resin hollow tube around a plurality of electrical conductors arranged parallel to each other on a flat plane, bleeding the tube and crimping the tube wall to the conductors, and extruding the synthetic resin It is formed by pressing the wall portions of the tube between the successive conductive wires against each other using rollers. According to the invention, the jacket can be easily stripped off, it is highly flexible, the insulation capacity can be defined more precisely, and electrical conductors of different diameters can also be easily applied to the channel 2. It has the advantage of being able to The above-mentioned known devices are inferior in these respects.

Embodiment 2 In FIG.
5 and two leaf springs 16 are shown. The ends of the electromagnets 15 and leaf springs 16 far from the support member 14 are connected to a horizontal vibration table 1.
Connect to 7. The spring angle of the leaf spring, that is, the angle between the leaf spring and the perpendicular to the vibration table, is 3°.

The reel 18 is connected to the vibrating table 17 with bolts 19. The diameter of the cylindrical core 20 of the reel 18 is 20 cm, and the length in the axial direction is 25 cm. The diameter of the circular flange 21 of the reel is 30 cm.
A carrier member 22 in the form of a tube formed from polyvinylidene fluoride is wound onto the reel 18.
The outer diameter of the carrier member 22 is 1.5 mm, and the inner diameter is 1.5 mm.
Let it be mm. The length of the carrier member 22 is approximately 1080 m. The number of winding layers of carrier member 22 around core 20 is ten.

The end 23 of the carrier member 22 remote from the vibrating table 17 is connected to the flange 21 of the reel by a clamp 24. Three optical fibers 25 are inserted into the ends 23 of these carrier members 22. The length of the optical fiber inserted into the end 23 is approximately 20 to 30 cm.
shall be. The total length of each optical fiber is approximately 1080 to 1090 m, and is wound around a reel 26. The reel 26 is connected to the holder 27.

By energizing electromagnet 15, harmonic vibrations are applied to vibrating table 17 as well as reel 18 and carrier member 22. The frequency of this vibration is 50Hz, and the horizontal amplitude from peak to peak is
Set to 4.0mm. Due to the action of the vibrations on the carrier member 22 and the mass inertia of the optical fiber 25, the optical fiber 25 advances along the carrier member (tube) 22. The approach speed shall be approximately 20 m/min. about 50
After a few minutes, the entire length of the carrier member 22 is filled with three optical fibers 25. Next, the optical fiber 25 in the carrier member 22 is arranged in the same manner as in the embodiment described with reference to FIG.

Although the carrier member 22 can be made of, for example, a synthetic resin such as those mentioned above, other inorganic materials,
For example, it can also be formed by a metal tube, in particular a copper tube, or a glass tube. The advantage of these inorganic materials is that they have excellent tensile strength and watertightness.

<Other Examples> In FIG. 4, reference numeral 28 indicates a synthetic resin,
For example, a cylindrical mantle covering made of polyethylene is shown, and this mantle sheath 28 has reinforcing elements 29 extending in the longitudinal direction of the mantle and embedded in a synthetic resin, which reinforcing elements are, for example, twisted. Use steel wire. Five optical cable elements 30 extend within this mantle 28. Each cable element is composed of a carrier member 32 made of drawn-down synthetic resin, and has 10 channels 31.
shall have the following. 1 for each channel
The optical fiber 33 of the book is stored.

In FIG. 5, reference numeral 34 indicates a steel core. This core 34 is provided with a coating 35 made of synthetic resin, for example polyethylene. The optical cable element 36 is wound around a synthetic resin sheath 35, and the optical cable element 36 is constituted by a carrier member 37 formed by drawing down a synthetic resin molded body.
There are 25 channels 38 extending in the longitudinal direction. The inner diameter of these channels is 1mm.
An optical fiber 39 having a primary coating of synthetic resin (not shown) is disposed in each channel. A foil 40 made of polyester, for example, is wrapped around the carrier element and then covered with a jacket 41 made of polyethylene plastic.

[Brief explanation of drawings]

1 is a diagrammatic perspective view of a ribbon-shaped carrier member, FIG. 2 is a diagrammatic side view of a first embodiment of a vibrating device for carrying out the method of the invention, and FIG. FIG. 4 is a diagrammatic side view of a second embodiment; FIG. 4 is a diagrammatic perspective view of an embodiment of an optical cable according to the invention;
FIG. 5 is a diagrammatic perspective view of another embodiment of the optical cable. 1, 22, 32, 37...Carrier member, 2, 3
1, 38... Channel, 3, 14... Support member,
4, 15... Electromagnet, 5, 16... Leaf spring, 6, 17
... Vibration table, 7... Clamp plate, 8... Clamp presser, 9, 26... Reel for optical fiber, 10,
27... Holder, 11, 25, 33, 39... Optical fiber, 18... Reel for carrier member, 20... Reel core, 21... Reel flange, 24... Clamp, 28... Mantle coating, 29... Reinforcement element, 3
0,36...Optical cable element.

Claims (1)

Claims: 1. An elongate carrier member having one or more longitudinally extending channels or holes, and one or more elongate elements along the one or more channels or holes. Store and
A method of manufacturing an elongate cable in which the diameter of the cross-sectional area of the channel or hole is greater than the diameter of the elongate element, the carrier member and the elongate element being flexible, and the carrier member being connected to a vibration device. placed in a roll on a table, the ends of one or more elongate elements being unwound from a supply unit and inserted into the ends of channels or holes in the rolled carrier member; A method of manufacturing a cable, characterized in that the carrier member is subjected to a periodic motion through the carrier member, and the effect of the periodic motion and the mass inertia of the elongate element causes the elongate element to enter longitudinally into a channel or hole of the carrier member. . 2. The cable manufacturing method according to claim 1, wherein harmonic vibration is applied to the carrier member, and the direction of the vibration is inclined with respect to the longitudinal direction of the carrier member. 3. The cable manufacturing method according to claim 2, wherein the direction of vibration is inclined at an angle of 1 to 2 degrees with respect to the longitudinal direction of the carrier member. 4. The cable manufacturing method according to claim 2 or 3, wherein the frequency of the harmonic vibration is 1 to 500 Hz, and the horizontal component of the amplitude is 0.1 to 10 mm. 5. Claim 1, characterized in that the carrier member is one or more tubes, and one or more elongated conductors are inserted into the tube to impart periodic motion to the carrier member. Cable manufacturing method described. 6. The cable manufacturing method according to claim 5, wherein the length of the tube is at least 200 m, and the inner diameter of the tube is 2 to 8 times the diameter of the conductor. 7. The cable manufacturing method according to claim 5, wherein the tube is formed of an inorganic material or a synthetic resin having reinforcing fibers. 8. The carrier member is an elongated member made of synthetic resin having one or more channels extending in the longitudinal direction, formed by extruding and then stretching the synthetic resin member, and having one or more channels extending in the longitudinal direction. A method as claimed in claim 1, characterized in that a conductor is inserted into one end of the channel and a periodic movement is applied to the carrier member. 9. The carrier member is a ribbon-like member of stretched synthetic resin with several parallel juxtaposed channels, and one or more conductors are inserted at the ends of the channels to impart periodic motion to the carrier member. A cable manufacturing method according to claim 8, characterized in that: 10 Using a carrier member having several channels or holes with one or more conductors disposed in some of the channels or holes and one or more conductors in the remaining channels or holes. The cable manufacturing method according to claim 1, characterized in that the above auxiliary wire is inserted. 11 comprising an elongate carrier member having one or more longitudinally extending channels or holes, housing one or more elongate elements along the one or more channels or holes; In an apparatus for manufacturing an elongated cable, the diameter of the cross-sectional area of the elongated element is greater than the diameter of the elongated element, comprising: a vibrating table on which a rolled carrier member is disposed; An elongated element feeding unit that feeds out toward the end of the channel or hole of the member, an actuating means for imparting periodic motion to the vibrating table, and a rolled elongated carrier member removably connected to the vibrating table. A cable manufacturing device characterized by comprising a connecting means for connecting. 12 Claim 11, characterized in that the operating means is a vibration generator or a pulsation generator.
Cable manufacturing equipment as described in Section. 13. The cable manufacturing device according to claim 1 or 2, wherein the connecting means is a clamp device.