JPS61231816A - Composite cable support - 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 of the Invention) This invention relates to a conduit (
CONDUIT). In particular, it relates to an extrusion for cable installation, in which the cable is laid along the path of the cable while safely and conveniently protecting the cable therein.

(Technical Background of the Invention) Cable laying conduits are currently used for the purpose of protecting or supporting cables from external factors and preventing excessive wear and premature loss of performance.

Additionally, as the cable is threaded through the conduit, it may be difficult to thread the cable through the conduit because the cable makes numerous contact with the rough surfaces of the conduit. Continuous cable-to-conduit contact also causes wear and stress problems, reducing cable performance. In the area along the conduit seal (Cond-uit 5eal), shear stress is applied to the cable, which may damage the cable before it is used much and shorten the life of the cable.

These cables have various functions as transport devices for communications, electricity, and gas, and also function as transport devices for optical fiber cables and the like. Therefore, obstruction to these services is not only an inconvenience, but also an economic factor that causes real disadvantage to users and suppliers.

SUMMARY OF THE INVENTION The present invention provides a cable carrying support (Cable Car-ryj) with a long, flexible shape to allow the cable to be inserted and fitted inside a conduit.
ng 5upport), in which case the cable support takes substantially the same shape as the conduit, and at the same time supports the cable within the conduit;
The object is to provide a support through which cables can be passed without interfering with each other, intermingling, or tangling the cables. It is also an object of the present invention to provide such a support for laying cables, which is of extruded construction, and is capable of protecting the cables from damage.

SUMMARY OF THE INVENTION A) an elongated extruded member in and along the conduit path arranged along an outer surface coincident with an inner wall of the conduit and supported by the conduit; b) extruded. A plurality of cavities are provided in the member, the paths of which are arranged symmetrically on a line coaxial with the center line of the extruded member, and at the points of contact between the individual cavities and between the cavities and the outer shell of the extruded member, respectively. So we have a common wall.

C) A suitable support structure between the cavity and the outer wall allows the cavity to maintain its shape along the conduit path even in vulnerable locations.

(Example) The present invention will be described in detail below. First, in FIG. 1, 1 is a conduit, and an extruded cable support 3 has a series of circularly arranged cavities (cells).
) 5. Each of these cavities allows the passage of various associated conveying devices such as cables or other conveying mechanisms of various uses. These cavities can be used to transport gas, water, or other liquids as well as cables. The mutual contact points 7 of the extruded cavities and the contact points 9 of the cavities with the shell are one wall thick. Therefore, when a larger cable is passed through, the inner diameter of the cavity becomes larger.

The contacts 7, 9 of each cavity form a triangular structural support, giving the extrusion 3 great strength.

A series of filled cavities sandwiched between the cavities and the shell (
filler cavity) IL13 also has electric wires, liquids,
In addition to having additional functions such as gas, it also provides structural support to the cavity 5.

FIG. 2, like FIG. 1, shows a cable-laying extrusion 15, with internal cable-laying cavities 17 forming a honeycomb and providing additional structural strength to the extrusion. There is. Here again, the contacts 19 between the cavities and the contacts 21 with the shell have a uniform thickness.

The individual cavities 17 are filled with complementary filling cavities 2 as in FIG.
3.25. This supplementary filling cavity not only strengthens the structure, but also serves other functions.

Other shaped extruded cavities are shown in FIGS. 3 and 4. In particular, the extruded material 23a is shaped like a truncated pyramidal triangle.
, 25a are shown, one having a circular cavity 27 and the other having a honeycomb-shaped cavity 29. Third
The triangular arrangement of FIGS. 1 and 4 has a filling cavity 31, 33, as in FIGS. 1 and 2, which provides structural support and, if necessary, additional It can also perform beneficial functions. Cavity 2 in Figure 3
7 each has a thickness of one wall at the triangular contact point 35 and the contact point 31 with the outer wall. This also forms the largest cavity for a given wall thickness, and the extrusion 2
It also provides a structural support structure for the outer wall of 3a.

The outer wall ends 40, 42, 44, and 46 of the extrusions 1, 15, 23, and 25 in Figs. Provides resistance to abrasion. This provides a retaining wall or barrier against various stresses caused by cave-ins or other significant disturbances. For this reason, it is also equipped with a protective structure to avoid obstacles and destruction in order to lay the cable functionally.

The extrusions shown in the various figures are made from plastics or derivatives thereof, and are chemically made to be sufficiently malleable in both the longitudinal and transverse directions. There is. This property gives the conduit ease of insertion and accessibility, and cracks in the conduit allow for holes and cavities to be easily filled or fitted with extrusions. While conduit is typically difficult to insert and pull cables through, extrusions are designed to easily overcome any obstacles.

Although the external surface of the extrusion is axially malleable as previously discussed, the internal structure is constructed to maintain rigidity along the internal cable run space. This protects the cable even if pressure is applied to the external surface of the extrusion.

Other shapes are shown in FIGS. 6 and 7. Each is rectangular in shape to serve four or six cavities. In particular, in the case of the rectangular conduit 50 of FIG. 6, an extruded support 52 therein has four cavities 54 and is constructed to carry functional cables or the like.

Here too, the walls of the cavities and the contact points 56, 58 of the cavities with the outer wall (extruded shell of the support) are of the same thickness. These contacts 56,58 provide structural support for the extruded support 52. or,
The filling part between the cavity and the wall offers an additional possibility of carrying functional means. Figure 7 is the 6th
Although similar to the Figure, the extrusion of Figure 7 includes additional cavities to provide additional functional support.

FIG. 8 shows a further different shape of the support having two compartments. In particular, the extruded support 66 of FIG. 8 has two compartments 68 and 70, one compartment 70 containing a collection of cavities 72 and the other a single tunnel for use in any single functional purpose. It has a groove like. 6th
In both FIG. 7 and FIG. 7, the cavities are the same, and the points of contact between the cavities and the walls are the same.

FIG. 5 shows a portion of the extrusion and conduit 76. In particular, the space 78 between the outer shell of the extrusion and the inner wall of the conduit may also be filled with a filler-like material. The material used for this filling provides supplementary strength and support structure to the support, ensuring the relationship between the conduit and the extruded support and thereby the functional cables arranged for installation. to bind. This also prevents moisture and dew from entering the conduit, which can cause corrosion and other deterioration.

Although what has been described above has been defined with respect to particular embodiments, modifications are possible. The invention can be used not only in the embodiment shown in the figures, but also in other embodiments. Moreover, the extrusions described so far can be placed directly on the ground and do not require other protective equipment.

FIG. 9 shows a cable support 80 having a plurality of cavities 82 of various sizes. Each cavity is
For example, contact points 84, 8 between cavities and cavities or between cavities and outer walls.
6 have walls of the same thickness.

The walls dividing the cavity and the outer walls are made of pliable and permanent materials, allowing the entire cable support 80 to be bent and rolled for ease of transport and storage. There is.

Another support configuration is shown in FIG.

In particular, the trapezoidal support 90 has an outer cavity 92 and an inner cavity 9.
It is larger than 4 and easier to roll.

FIG. 11 shows a support 100 having a conventional cavity 102.
FIG. Contact surface 104 between cavity and support
, 106 uses self-lubricating resin to reduce friction between the surface of the support cavity and the cable supported by it during the extrusion process.
resin). Again, the supporting surface material is not only treated with a self-lubricating resin, but can also be made flexible using bending additives. Additionally, materials such as glass fiber or asbestos can be used to prevent burning.

Chemicals such as lead-galena can also be used to protect the support from radioactivity and electromagnetic radiation.

This provides a perfect shield against radiant energy.

FIG. 12 shows another embodiment. Here, the separated cavity 1
．． 03 are arranged in a circular manner and the individual cavities are connected by a series of single flexible membranes 105 making the array 101 a unit. Individual cavities 103 making up array 101
are made strong in their outer portions and protect the cable support 101 when that portion comes into contact with the conduit. The exterior reinforced walls begin with a polished surface during the extrusion process. This process is commonplace in the plastics industry and will not be discussed in detail here. The wear-prone surfaces of cavity interior 103 require lubrication as previously discussed. This lubricant will self-lubricate when the cable is inserted. The inner cavity surface 108 can also be sprayed with a mist of silicone or oil using an air jet to create a film on the surface to reduce friction when the cable is inserted. These materials can be applied to either the inner or outer walls by varying the die temperature during the extrusion material feeding process.

The arrangement of cavities in FIG. 13 is similar to FIG. 12, but all cavities are circularly adjacent and have a common wall 112. The individual cavities are like spokes of a tire, forming a wheel 1.
They are connected and integrated by 14 points. Also, a flexible membrane 116 as seen in FIG. 1 is used. Again, as shown in Figure 11, a self-lubricating material or something similar is used to prevent friction between the inner and outer walls.

The membranes 105, 114 of FIGS. 12 and 13 are flexible, but strong enough to connect the cavities in an array. This membrane is optional.

You can also cut a portion and use it for a specific purpose.

Such cavity movement is useful when an entire cable must be inserted into a unique conduit. There are many reasons to cut the membrane, and each is tailored to the purpose of the moment.

14 and 15, separate cavities 120, 122 are connected by flexible membranes 124, 126 in a rectangular shape as in FIGS. 12 and 13. These cavities are merely illustrative of the various possible arrangements of cavities in the shapes and manners shown herein.

FIG. 16 shows cavities 130 arranged in a circular manner, with adjacent cavities having a common wall 132 at the point of contact. Since the array of cavities 130 has no external covering walls, the walls of the extremity 134 of the individual cavities are made strong. This strong build makes the cavity strong along the tip of the cavity. The array 130 of FIG. 16 has a central cavity 136 that is centrally adjacent to each of the cavities 138 of the array 130 and has the same walls as the adjacent cavities.

Figures 17 and 18 show a splicing or joining method for tightly joining the joints of the supports in a manner that prevents water from entering. Although FIG. 17 shows a cable-laying support 140, the arrangement of cavities 142 may be configured in any manner. In particular, the support 140 has a key groove 144 whose bottom 146 has an obliquely tapered female shape.

This inserts the female key 148 into the sleeve assembly 1.
This is to connect 50. In particular, FIG. 18 shows a mating sleeve 154 and a key member 156 that engages key groove 144.
have. The sleeve and carrier cannot be joined unless the key and groove are tilted in the same direction. Although a set of keys and grooves are shown in the figure, a plurality of keys and grooves may be provided on the outer periphery to facilitate joining with adjacent supports. One of the reasons for using the diagonal key and screw assembly is to eliminate mistakes when joining the supports. Moreover, such a joining sleeve can shorten the time required to join the supports together. Although only one is shown here, simple mistakes in joining the supports can be minimized by this. There are other ways to ensure proper joining of the supports with grooved supports and sleeves.

It may seem like a reminder, but what is shown here is merely an example, and changes can of course be made without departing from the spirit of the invention.

EFFECTS OF THE INVENTION An elongated extruded member in and along a conduit path arranged along an outer surface coincident with an inner wall of the conduit and supported by the conduit, with a plurality of cavities within the extruded member; the passages are arranged symmetrically on a line coaxial with the centerline of the extruded member and have common walls between individual cavities and along the points of contact between the cavities and the outer shell of the extruded member, respectively; And even in places that are easily damaged,
A support structure was provided between the cavity and the outer wall to maintain the shape of the cavity along the conduit path, making it possible to safely protect wires, optical cables, etc.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of a conduit with a cable support supporting five cables inside five cavities. FIG. 2 is a cross-sectional view of the cable support and conduit, similar to FIG. 1, in which the cavities are honeycomb-shaped. FIG. 3 is a cross-sectional view of a truncated triangular conduit and cable support therein, having a cavity therein capable of supporting three cables arranged in a triangular configuration. FIG. 4 is a cross-sectional view of a conduit with a cable support similar to FIG. 3, where the cavity is honeycomb-shaped. FIG. 5 shows the conduit partially broken and the extruded support inside, leaving space to fill with filler material to secure the cavity and the conduit. Figures 6 and 7 show typical shapes of conduit supports with four and six cavities, respectively. Figure 8 shows a rectangular conduit with two sectioned sections, one section containing extruded cavities to support six cables, and the other section constructed to meet other needs. There are parts that have been removed. FIG. 9 shows a cable-laying support having a defined cavity for supporting cables of various sizes. FIG. 10 shows a trapezoidal support with cavities of different sizes. FIG. 11 shows a support in which the cable contact surfaces and outer wall surfaces are coated with a self-lubricating resin to prevent abrasion. Figure 12 shows a circular arrangement of separate individual cavities, joined by a series of single flexible membranes, which connect the cavities as one solid cable. This is a summary. Figure 13 also shows a collection of cavities like Figure 12, but the walls of the cavities are joined in a typical manner. 14 and 15, separate cavities are arranged in a rectangular shape, and these cavities are connected by a thin film as shown in FIG. 12. FIG. 16 shows a circular arrangement of cavities connected to each other. FIG. 17 shows a support with key grooves for connection with a joining sleeve. FIG. 18 shows a joint sleeve that joins the cavities together. ], conduit 3 cable support 5 cell 7 contact 9 contact 11.13 filling cavity
y) 15 Extruded material 17 Cavity 19.21
Contacts 23.25 (supplementary) filling cavities 23a, 25a extrusions 29 cavities 31, 33 filling cavities 35
, 37 Contact points 40.42, 44.46 Extruded material outer wall end 50
Rectangular conduit 52 Support 56, 58 Contact 66
Supports 68, 70 Section 76 Conduit 78 Space 80 Cable support 84
, 86 contact 90 support 92 cavity 94 cavity 101 cable support 102 cavity 103 space 104.1
06 Contact surface 105 Flexible membrane 108
Cavity surface 112 Wall 11.4 Wheel 116 Membrane 1.20, 1.22 Cavity
1.24,126 (flexible) membrane 130 cavity 132 wall 134 tip of cavity
136, 1.38 Cavity 140 Support
142 Cavity 144 Key groove 146 (Key groove) bottom 150 Sleeve assembly 156 Key part or more

Claims (1)

[Scope of Claims] [1] A protective conduit for supporting a useful conveyance along a path in a vulnerable environment, having a flexible conveyance support extruded within the co-conduit. An extruded conduit cable support comprising the following constituent requirements a) to c). a) Elongated extruded members in and along the conduit path arranged along an outer surface dimensionally coincident with the inner wall of the conduit and supported by the conduit. b) the channels are arranged symmetrically on a line coaxial with the centerline of the extruded member and have common walls between the individual cavities and along the points of contact between the cavities and the outer shell of the extruded member, respectively; a plurality of cavities within the extruded member having a plurality of cavities within the extruded member; c) Support structures between the cavity and the outer wall arranged to maintain the shape of the cavity along the conduit path even in areas susceptible to damage. [2] The extruded member has five cavities, each cavity having tangential contact along a common wall and also having three contact points along the outer wall; A conduit cable support according to claim 1, characterized in that the contacts provide rigidity and strength to the extruded member along the entire path and prevent the member from collapsing. [3] The cavities of the molded member are circular, and the cavities and the common walls between the cavities and the outer walls are all of the same thickness, creating maximum volume within the extrusion while providing the necessary stiffness and strength. The conduit cable support according to claim [2], which holds the following. [4] A conduit cable support according to claim [2], wherein the extruded member cavity is honeycomb-shaped, and the common wall contacts provide maximum size and strength. [5] Each of the cavities, walls, and fill spaces contained in the extruded member provides complementary strength and means for conveying complementary beneficial functions. Conduit cable support according to range [1]. [6] The extruded member is in the shape of a truncated triangular pyramid and has a plurality of cavities, and this structure makes it easy for the extruded material to be wound freely and allows it to successfully overcome obstacles in the conduit path [ 1] The conduit cable support described in [1]. [7] The rectangular extruded member has three circular cavities, each cavity having a contact point along a common wall between the cavities or the outer wall of the extrusion, and the extruded member Claims that give optimum size and rigidity to [
6] The conduit cable support described in [6]. [8] The extruded member has three honeycomb-shaped cavities, each cavity having contact points with the cavities and a common wall between the cavities and the outer wall of the extrusion, thereby causing the extrusion to Claims providing maximum size and stiffness for [
6] The conduit cable support described in [6]. [9] The inner surface of the conduit and the outer surface of the support have a defined space into which the filler material solidifies, keeping the conduit and the support a certain distance apart, thereby causing the support in the conduit to A conduit cable support according to claim [1], wherein the conduit cable support is suitably protected from the ingress of contaminants. [10] The conduit cable support according to claim [1], wherein there are a plurality of cavities arranged in a rectangular manner within the extruded member, the cavities having contact points along the outer wall with a common barrier. [11] A cable support device comprising the following structural requirements a) to d). a) Extrudable cable support members; each member having a symmetrically arranged cable support cavity. b) Elastic means connecting the cavities; this holds the cavities in a constant shape and provides elasticity to the cavities. c) a substance placed around the cavity; this provides reinforcement;
Provides lubrication along wear surfaces and/or bearing surfaces. d) Connections for cable support members at the ends of the cable support member to maintain continuity of the cable support system. [12] A cable support system in which a flexible material is inserted into the extruded support member during the extrusion process to impart flexibility to the cable support member and a cavity forming a part thereof. The cable support device according to [11]. [13] The extruded support member is injected with a fire-resistant material during the extrusion process, thereby imparting fire resistance to the cable support device and the cavities and support portions constituting a part thereof. The cable support device according to [11]. [14] A patent in which the extruded support member is injected with a self-lubricating agent during the extrusion molding process, thereby imparting self-lubricating properties to the support member and the bearing surface of the cavity forming a part thereof. A cable support device according to claim [11]. [15] The extruded support member is injected with a leaded mixture during the extrusion process, which provides shielding of the support member and the cavity of which it is a part from atomic and electromagnetic radiation energy. A cable support device according to claim [11]. [16] The joining means includes a diagonal sleeve member that engages the support member along the diagonal portion to maintain continuity of the support and the cable. 11] The cable support device described in [11]. [17] Claim [16] The sleeve member includes a key and groove portion for engaging the sleeve and the support member.
] Cable support device described.