JP4745034B2 - Multiple exterior cable retaining device and multiple exterior cable retaining method - Google Patents

Description

  The present invention relates to a connection device and a terminal device for a multiple exterior cable in which exterior iron wires are arranged in multiple layers on the outer periphery of a communication cable, a power cable, etc., and a retention device for a multiple exterior cable for retaining an exterior iron wire, and It relates to that method.

  The cable as a communication line is a non-armoured cable that has no work on the normal cable, and an uncoated cable for the purpose of protecting the uncoated cable. It is classified as an armored cable that has been crafted on top.

  As a submarine cable for shallow water, for example, as shown in a sectional view in FIG. 13, the surface of the cable core 56 is covered with a floor 55 wound with PP yarn or the like, and a plurality of sheaths formed of steel wire thereon. A wire armored cable in which the iron wire 54 is twisted and further covered with an outer covering 53 such as PP yarn is used. That is, the exterior 52 includes a seat floor 55, an exterior iron wire 54, and an outer sheath 53 that sequentially cover the surface of the cable core 56. The armored cable is used in a place where there is a risk of damage due to fishing, or where the bottom is rock or the like, and particularly where the covering may be damaged.

  When connecting such an armored cable at its terminal, it is necessary to firmly hold the cable optically, electrically, and mechanically. Since it is required to exert a force, all members capable of resisting the external tension are fastened in the cable constituent member, and a fastening force corresponding to the breaking tension of each member is given. Of course, the external iron wire 54 must also be firmly retained. The retaining portion of the exterior iron wire 54 is also required to fit in a small space corresponding to the size of a joint box (JB) or the like.

In Patent Document 1, a single exterior iron wire is sandwiched between two rings (rings) whose inner surface is conical and outer surface is conical, and compressed to increase the holding force. A retaining device having a rough surface on the surface is described.
A joint box in which the exterior cable retaining device described in Patent Document 1 is installed will be described with reference to FIGS. 10, 11, and 12.
The joint box 30 is used to mechanically, electrically, and optically connect the external cables 51a and 51b. Rubber boots 40, 40 are attached to the outermost ends of both ends of the joint box 30 into which the exterior cables 51a, 51b are drawn, respectively, so as to protect the cables from, for example, bending received during laying.

  In the center of the joint box 30, the connecting portion 20 for connecting the optical fibers in the cable core 56 to each other is placed, and the retaining portions 10 for retaining the cable cores of the exterior cables 51a and 51b are installed on both sides thereof. It is accommodated in the cylinder 38. The pressure-resistant cylinder 38 protects the connecting portion 20 of the optical fiber accommodated therein from external forces such as water pressure and bending, and also transmits the tension between the cable cores and electrically connects the power supply path. For this reason, the pressure-resistant cylinder 38 is made of a high-strength metal.

  One layer of the armored iron wire 54 of the armored cables 51 a and 51 b is retained by the armored iron wire retaining part 41 disposed on the outer peripheral side of the pressure-resistant cylinder 38. The outer iron wire retaining portion 41 is supported by the inner flange portion of the substantially cylindrical boot insert 36 a, and the left and right boot inserts 36 a are coupled to the cylindrical cover 36 by, for example, screwing, and applied to the outer iron wire 54. Is transmitted to the exterior cables 51 a and 51 b through the cover 36.

  The anchor 42 'is an anchor having a substantially cylindrical shape with a conical inner tapered surface 42a' formed at the center, and is made of, for example, a steel material. The exterior cable 51b is inserted through the through hole 42c 'provided at the apex portion of the inner tapered surface 42a'. The wedge 43 ′ has a shape in which a disc-shaped flange portion is joined to a truncated cone shape having an outer tapered surface 43a ′, and the inclination angle of the taper of the outer tapered surface 43a ′ is substantially the same as the taper of the inner tapered surface 42a ′. They have the same inclination angle. Further, a through-hole 43c 'through which the cable core 50 is inserted is provided at the center of the wedge 43'.

  The outer sheath 53 and the seating floor 55 of the outer cable 51b inserted into the anchor 42 'are removed, the outer iron wire 54 is expanded and arranged side by side on the inner tapered surface 42a' of the anchor 42 ', and the wedge 43' is press-fitted into the anchor 42 '. Then, the exterior iron wire 54 ′ disposed on the inner tapered surface 42a of the anchor 42 ′ is sandwiched and gripped by the inner tapered surface 42a ′ and the outer tapered surface 43a ′.

  The exterior cable 51b is spread by exposing the exterior exterior iron wire 54, and the outer sheath 53 and the floor 54 are removed, and only the submarine optical cable 50 of the cable core is formed. The submarine optical cable 50 is inserted through the through-hole 43c ′ in the left direction (the direction of the arrow in FIG. 11), the insulating sheath layer is removed halfway, the metal tube layer is exposed, and is led into the pressure-resistant cylinder 38, and the connection portion 20, the optical fibers are connected to each other, and the connection of the cables 51a and 51b is completed.

  Further, a female screw hole 43b 'is provided in the flange portion of the wedge 43', and a bolt 44 'inserted into the bolt hole 42b' of the anchor 42 'is screwed together to fix the press-fit anchor 42' in the press-fitting position.

  An uneven shape 46 ′ is formed on one or both of the outer tapered surface 43 a ′ of the wedge 43 ′ that is the retaining surface and the inner tapered surface 42 a ′ of the anchor 42 ′. If the retaining surface is an outer tapered surface 43a ', the knurled process is used to add irregularities (a shape in which linear irregularities with different directions overlap), and in the case of the inner tapered surface 42a, by sandblast-like processing, The concavo-convex convex portions are sharp and bite, and are formed as concavo-convex shapes that do not come off by an external force parallel to the retaining surface.

  Further, as a retaining device for an armored iron wire of another type of a conventional armored cable, a caulking sleeve is inserted into the front end of the armored iron wire as described in Patent Document 2 and fixed by caulking, and assembled to a connecting device. Some of them are retained by hooking a caulking sleeve into the groove of the flange.

Furthermore, as a retaining device for armored iron wire of armored cable, as a retaining device for armored cable equipped with two layers of outer-layer iron wires, an intermediate ring with conical inner and outer surfaces is inserted between two rings (anchor and wedge) In addition, there is a retaining device as described in Patent Document 3 in which the first layer and the second layer of exterior iron wires are arranged separately and retained.
With reference to FIG. 8 and FIG. 9, an exterior cable retaining device having a double exterior wire layer described in Patent Document 3 is applied to the exterior cable retaining device described in Patent Document 1. To do.

  As is apparent from FIGS. 8 and 9, the double armored wires 54a and 54b of the armored cable 51b having a double armored wire layer are formed by connecting the inner tapered surface 42a ′ of the anchor (ring 1) 42 ′ and the armored iron wire. It is the same as the retaining device described in Patent Document 1 in that it is sandwiched and gripped by the outer tapered surface 43a ′ of the wedge (ring 2) 43 in the retaining portion 41. However, since the exterior iron wire has two layers, when retaining it, after inserting an exterior wire member ring (intermediate ring) 48 ′ between the first exterior iron wire 54 a and the second exterior iron wire 54 b Furthermore, the outer tapered surface 43a ′ of the wedge 43 ′ and the inner tapered surface 42a ′ of the anchor 42 ′ are sandwiched and gripped.

  In the retaining device described in Patent Document 3, a concavo-convex shape 46 ′ is formed on the outer tapered surface 43 a ′ of the wedge 43 ′ and the outer tapered surface 48 b ′ of the outer wire member ring 48 ′.

  The concavo-convex shape of the retaining device described in Patent Document 1 and Patent Document 3 brings about high frictional force generation between the exterior iron wire and the retaining surface, and increases both the coefficient of friction and the contact area between the two, resulting in high grip It is provided to gain power.

JP 2002-320320 A JP 2005-73318 A Japanese Patent No. 2767249

  The conventional crimping type retaining device as described in Patent Document 2 caulks one or a plurality of armored iron wires, and therefore, when the number of armored iron wires such as double armored cables is large, the working time As the number of caulking sleeves increases, the storage section becomes larger, leading to an increase in the size of the retaining device.

  In the ring-type retaining device described in Patent Document 3, in the case of retaining a two-layer exterior cable, as shown in FIGS. 8 and 9, the first outer-layer iron wire 54a and the second-layer exterior The intermediate ring 48 'is inserted between the iron wire 54b, but when the compression is performed at a time, the frictional force of the inner surface taper of the intermediate ring is low, so the intermediate ring 48' is compressed even if the second ring 43 'is compressed. Since 48 ′ could not receive the force sufficiently, the compression force was not transmitted well to the first layer, and it was difficult to obtain a sufficient holding force. That is, the second ring 43 ′ and the lower armored iron wire 54a, the intermediate ring 48 ′ and the upper armored iron wire 54b are in a fixed state, but the intermediate ring 48 ′, the lower armored iron wire 54a, and the first ring 42 ′. Since the upper outer iron wire 54b slips, the intermediate ring 48 'and the upper outer iron wire 54b may be displaced in the large diameter direction of the tapered portion, and the balance between the upper outer iron wire 54b and the lower outer iron wire 54a is lost. This may reduce the retention force.

  In addition, there is a method of compressing and retaining the outer iron wire by dividing it into two layers, but when retaining the compression hook or the first layer on the intermediate ring, the second layer of the outer iron wire is temporarily disassembled. There is a problem that work efficiency is deteriorated.

The present invention provides a multiple sheathed cable in which a multilayer sheathed wire member is provided on the outer peripheral portion of the cable, and the terminal portion of the sheathed wire member is sandwiched from the outer peripheral side of the outermost layer and the inner peripheral side of the innermost layer. A multi-sheath cable retaining device having a multi-sheath cable retaining part to be fastened, comprising a conical inner tapered surface as a retaining surface for retaining the outer peripheral side of the outermost layer of the exterior wire member A first ring that is an anchor, and a conical shape that is inclined corresponding to the shape of the inner tapered surface of the first ring that serves as a retaining surface for retaining the inner peripheral side of the innermost layer of the exterior wire member. Corresponding to the shape of the second ring, which is a wedge having an outer taper surface, and the inner taper surface of the first ring and the outer taper surface of the second ring, which are arranged between the layers of the multilayer exterior wire member Conical shape with an inclined retaining surface The inner peripheral side tapered surface, and a one or more multiple armor wire member between the rings with an outer peripheral side tapered surface, both the inner peripheral side tapered surface and the outer tapered surface of said multiple armor wire member between the rings is The inner ring surface of the first ring and the outer taper surface of the second ring are both roughened as an uneven shape , and both the inner taper surface and the outer taper surface of the ring between the multiple armored wire members are formed. Is formed by surface processing on a smooth smooth surface, and the multiple armored wire retaining portion includes a ring between the armored wire members arranged between layers of the multilayer armored wire member, and the smoothness of the first ring Inserted between an inner tapered surface surface-processed to a smooth surface and an outer tapered surface surface-processed to a smooth smooth surface of the second ring, thereby forming a rough surface of the ring between the exterior wire members Circumference taper surface and outer circumference It is formed integrally with a taper surface, and each layer of the armored iron wire is intimately contacted by frictional force on the inner taper surface and the outer taper surface formed on the rough surface of the ring between the multiple armor wire members, and is smoothly When the inner taper surface of the first ring and the outer taper surface of the second ring formed by surface processing on a smooth surface are slid, the positional relationship between the multiple sheathed wire members may be shifted. It is characterized by being held together with almost the same compressive force.

The retaining method of the present invention is the retaining method of the retaining device for the multiple sheathed cable, wherein the ring between the sheathed wire members is arranged between the layers of the multilayer sheathed wire member, and the rough surface of the ring between the sheathed wire members A multiple exterior line retaining portion is formed by the inner peripheral side tapered surface and the outer peripheral side tapered surface, and the multiple exterior line retaining portion is formed between the inner tapered surface of the first ring and the second ring. By inserting and arranging between the outer tapered surface, press-fitting the first ring and the second ring, and collectively holding and holding the multiple outer iron wire, each layer of the outer iron wire, The inner ring of the first ring formed by surface contact processing by a frictional force between the inner peripheral side taper surface and the outer peripheral side taper surface formed on the rough surface of the ring between the multiple sheathing line members, and being processed into a smooth smooth surface. Tapered surface and outer taper of second ring By sliding the face, the multiplexing armor wire member mutual positional relationship without misalignment occurs, characterized in that it detained collectively in substantially the same compressive force.

By processing the retaining surfaces on the inner and outer surfaces of the ring between the exterior wire members into a rough surface, the intermediate ring can be used rather than the friction force in the first ring and the upper sheath wire, and the second ring and the lower sheath wire. Since the frictional force with the exterior wire member increases, even if the first ring on the inner peripheral side and the second ring on the outer peripheral side are press-fitted, the first ring and the upper outer sheath line, the second ring and the lower ring Since the exterior line slips, the positional relationship of the first and second exterior line members does not shift with respect to the ring between the exterior line members, and the first ring on the inner peripheral side and the second ring on the outer peripheral side Move in the direction in which the exterior wire member is pressed against the ring between the exterior wire members, so that there is no deviation in the positional relationship between the exterior iron wires, and the first and second layer exterior iron wires are moved together with approximately the same compressive force. Can be detained.
In addition, it can be retained by one press-fitting.

  The outer peripheral surface and inner peripheral surface of the ring between the exterior wire members are processed by roughening the surface in a direction perpendicular to the inclined surface, so that the first layer is the second layer of the exterior wire member. Even if the wedge effect of the ring between the exterior wire members is not obtained at the time of tension application, the exterior wire member is pulled in the direction of biting into the concavo-convex portion, so that a sufficient holding force can be obtained.

  In the present invention, multiple armored iron wires are held together, so that disassembling of the armored iron wire is possible only at the part where the armored iron wire is raised, and thus it is possible with the minimum necessary steps.

The Example of the holding | maintenance apparatus of the multiple armored cable of this invention is described based on FIGS. What is described in the embodiment will be described by taking a double armor cable as an example.
The joint box in the present invention mechanically, electrically, and optically connects multiple armored cables. The outermost ends of the joint box 30 into which the armored cables 51a and 51b are drawn are respectively made of rubber. Boots 40, 40 are attached, for example, to protect the cable from bending received during laying, and in the center of the joint box 30, there is a connecting portion 20 for connecting the optical fibers in the cable core 56 to each other. The retaining portion 10 is disposed on both sides of the exterior cable 51a and 51b to accommodate the cable core, and is accommodated in the pressure-resistant cylinder 38. The pressure-resistant cylinder 38 protects the connecting portion 20 of the optical fiber accommodated therein from external forces such as water pressure and bending, and also transmits the tension between the cable cores and electrically connects the power supply path. For this reason, the pressure-resistant cylinder 38 is formed of a high-strength metal (see FIG. 10).

The armored iron wires 54 of the double armored cables 51 a and 51 b are retained by armored iron wire retaining portions 41 and 41 disposed on the outer peripheral side of the pressure-resistant cylinder 38.
As shown in FIGS. 2 and 5, the exterior iron wire retaining portion 41 is a cover 36, an anchor 42 (hereinafter referred to as “first ring 42”) that is a first ring, and a second ring. A wedge 43 (hereinafter referred to as “second ring 43”) and an exterior wire member-to-member ring 48 (hereinafter referred to as “intermediate ring 48”), which is an intermediate ring, have a basic configuration.

The first ring 42 has a conical inner tapered surface 42a formed on the inner peripheral portion thereof, and has an almost cylindrical shape. For example, the first ring 42 is made of a steel material and is screwed by a cover 36 and a mounting portion 43e. . The armored cable 51b is inserted through the through hole provided at the apex portion of the inner tapered surface 42a. The inner tapered surface 42a is formed smoothly.
The second ring 43 has a truncated cone shape having an outer tapered surface 43a and a disk-like flange portion coupled to each other. The inclination angle of the taper of the outer tapered surface 43a is the inner tapered surface of the first ring 42. The shape is substantially the same as the inclination angle of the taper 42a. In addition, a through hole 43 c through which the cable core 50 is inserted is provided at the center of the second ring 43. The second ring 43 is made of, for example, a material equivalent to the first ring 42, for example, a steel material. The outer tapered surface 43a is formed smoothly.

The intermediate ring 48 is made of, for example, a steel material having a hollow conical shape in which an outer tapered surface 48a and an inner tapered surface 48b are formed. The taper inclination angles of the outer tapered surface 48a and the inner tapered surface 48b are the first The inner tapered surface 42 a of the ring 42 and the outer tapered surface 43 a of the second ring 43 have substantially the same shape.
It is desirable that the outer tapered surface 48a and the inner tapered surface 48b are concavo-convex and that the direction of the concavo-convex portion is perpendicular to the inclined surface or is inclined in the large-diameter direction of the intermediate ring. It is formed so as to act as a retaining surface for the exterior wire.

As shown in FIG. 4, the outer taper surface 48a, the inner taper surface 48b, and the double sheathing lines 54a and 54b, which are concave and convex shapes of the intermediate ring 48, are fixed by frictional force and substantially integrated. The outer iron wire retaining portion 48d is formed.
Since the outer taper surface 48a and the inner taper surface 48b of the intermediate ring 48 are processed to have a concavo-convex shape, the frictional force with the outer iron wires 54a and 54b causes the taper surfaces 42a of the first ring 42 and the second ring 43 to 43a and the outer iron wire are higher than the frictional force, so there is no deviation in the positional relationship between the intermediate ring and the outer iron wire during compression, and the first and second layer outer iron wires have almost the same compressive force. Can be held together.

  The exterior iron wires 54a, 54b from which the outer sheath 53 and the floor 55 of the double armored cable 51b are removed are doubled and spread concentrically with the inner tapered surface 42a of the first ring 42, and the intermediate ring 48 is interposed between the outer iron wires. Is inserted into the first ring 42 by engaging the outer taper surface 48a and the inner taper surface 48b of the intermediate ring 48, which is the retaining surface of the exterior iron wire, and then the second ring 43 is inserted into the second ring 43. When the first ring 42 is press-fitted, the inner tapered surface 42 a of the first ring 42 and the outer tapered surface 43 a of the second ring 43 are integrated with the arranged exterior iron wires 54 a and 54 b and the intermediate ring 48. The outer iron wire retaining portion 48d is sandwiched and gripped by the inner tapered surface 42a and the outer tapered surface 43a.

Concave and convex shapes 48 c are formed on the outer tapered surface 48 a and the inner tapered surface 48 a of the intermediate ring 48 that is a retaining surface. The range in which the uneven shape is formed may be the entire tapered surface or a part of its essential part. As a specific example of the concave / convex shape processing, for example, a taper screw having a thread shape, or a line having a cross-sectional shape similar to the screw thread by lathe processing may be attached in a ring shape.
The concave and convex shapes of the outer tapered surface 48a and the inner tapered surface 48b are preferably inclined in the direction perpendicular to the inclined surface or in the large-diameter direction of the intermediate ring. The action of.

  The inner tapered surface 42a of the first ring and the outer tapered surface 43a of the second ring are subjected to smoother surface processing than the tapered surfaces 48a, 48b of the intermediate ring. A surface hardened layer is preferably formed on the tapered surface of each ring 48.

The outer peripheral side end surface of the first ring 42 is supported by the inner flange portion of the cover 36, and a screw is cut on the attachment portion 43 d of the flange portion of the second ring 43 and is fixed to the cover 36.
As another example of the attachment portion 42d, as shown in FIG. 3, a female screw hole between the attachment portion of the second ring 43 and the cover 36 may be provided and screwed by a screw 43d.

  A method for retaining a double armored iron wire by the retaining device 41 of the present invention will be described below with reference to FIGS.

The outer armor wires 54a and 54b from which the outer sheath 53 and the seating floor 55 of the double armored cable 51b have been removed are spread side by side in a concentric manner with the inner tapered surface 42a of the first ring 42, and an intermediate ring is provided between the armored iron wires. 48 is inserted into the first ring 42 by engaging the outer taper surface 48a and the inner taper surface 48b of the intermediate ring 48, which is the retaining surface of the outer iron wire, and then the second ring 43 is inserted into the first ring 42. Press fit into the first ring 42.
An exterior package in which the inner taper surface 42a of the first ring 42 and the outer taper surface 43a of the second ring 43 are integrated by the outer iron wires 54a and 54b and the intermediate ring 48 by the press-fitting operation of the second ring 43. By sandwiching and gripping the iron wire retaining portion 48d, the exterior cable can be securely and firmly retained.

  During the press-fitting operation of the second ring 43, the outer iron wires 54 a and 54 b are substantially formed with the intermediate ring 48 and the outer iron wire retaining portion 48 d, so the first outer iron wire 54 a and the second outer iron wire 54 a are formed. Since the iron wires 54b do not deviate from each other, there is no deviation in the positional relationship between the outer iron wires, and the first outer iron wire 54a and the second outer iron wire 54b are pulled together with substantially the same compressive force. Can be fastened.

An example of the press-fitting operation method will be described with reference to FIGS.
Bolt holes 42b are provided in the first ring 42, and female screw holes 43b are provided in the second ring 43. The bolts 44 inserted into the first ring 42 and the female screw holes are screwed together, and the bolts 44 are tightened. Then, the press-fitted first ring 42 is fixed at the press-fitting position. In the figure, only one bolt 44 is drawn. However, in order to resist a large tension applied to the exterior iron wire and to secure a stable coupling between the first ring 42 and the second ring 43, A plurality of bolts arranged approximately equally around one ring 42 is used.

The present invention can be applied not only to the double sheathed cable retaining device in the case of the above description, but also to triple or more multiple sheathed cables.
When applied to a multiple sheathed cable of triple or more, by preparing a plurality of intermediate rings that are processed with irregularities on both the outer taper surface and the inner taper surface, by configuring and operating as described in the above embodiment, Can be implemented.

Sectional drawing of the holding | maintenance apparatus of the multiple armored cable of this invention. The principal part enlarged view of sectional drawing of the holding | maintenance apparatus of the multiple armored cable of FIG. The elements on larger scale of the arrow part of FIG. The expanded sectional view which shows the state which the intermediate | middle ring of this invention fastened the double armor line. The expansion | deployment perspective view of the securing device of this invention. Sectional drawing which shows another Example of the securing device of this invention Sectional drawing of a multiple armored cable. Sectional drawing of the holding | maintenance apparatus of the conventional double armored cable. The expansion perspective view of the conventional double armored cable retention device. Sectional drawing of the principal part of a joint box. The expansion | deployment perspective view of the conventional single exterior cable holding | maintenance apparatus. Sectional drawing of the uneven | corrugated shape of the conventional holding apparatus of a single armored cable, and a holding member. Sectional drawing of a single armored cable.

Explanation of symbols

10 Retaining part,
20 connections,
30 joint box,
36 cover,
36a boot insert,
36b connection part,
38 pressure cylinder,
38a end plate,
38b bolts,
38c mold part,
40 boots,
41 exterior iron wire retainer,
42 anchor (first ring),
42a inner tapered surface,
42b bolt hole,
42c through-hole,
43 Wedge (second ring),
43a outer tapered surface,
43b female thread,
43c through hole,
43d Attachment part with cover,
44 volts,
46 Uneven shape,
48 Ring between exterior wire members (intermediate ring),
48a outer tapered surface,
48b inner tapered surface,
50 submarine optical cable,
51, 51a, 51b exterior cable,
52 Exterior,
53 Exterior covering,
54 Exterior iron wire,
54a First exterior iron wire,
54b Second exterior iron wire,
55 the floor,
56 cable core,

Claims (5)

A multi-sheath cable in which a multi-layer armored wire member is provided on the outer periphery of the cable, and the multi-sheathed cable sandwiches and holds the terminal portion of the armored wire member from the outer peripheral side of the outermost layer and the inner peripheral side of the innermost layer A multiple armored cable retaining device having a retaining portion,
A first ring that is an anchor having a conical inner tapered surface as a retaining surface for retaining the outer peripheral side of the outermost layer of the exterior wire member;
A wedge having an outer tapered surface having a conical shape inclined corresponding to the shape of the inner tapered surface of the first ring as a retaining surface for retaining the inner peripheral side of the innermost layer of the exterior wire member. A second ring;
A conical inner peripheral side that is disposed between layers of the multi-layer exterior wire member and has a retaining surface that is inclined corresponding to the shape of the inner tapered surface of the first ring and the outer tapered surface of the second ring. One or a plurality of rings between multiple sheathed wire members each having a tapered surface and an outer peripheral tapered surface;
With
Both the inner peripheral side taper surface and the outer peripheral side taper surface of the ring between the multiple sheathing line members are formed on the rough surface as an uneven shape ,
The inner taper surface of the first ring and the outer taper surface of the second ring are both processed to be smooth and smoother surfaces than the inner taper surface and outer taper surface of the ring between the multiple sheathed wire members. Formed,
The multiple exterior wire retaining portion includes an inner taper surface and a second surface that are processed into a smooth and smooth surface of the first ring by arranging the exterior wire member ring between layers of the multilayer exterior wire member. Between the outer tapered surface and the outer tapered surface, which are inserted between the outer tapered surface and the outer tapered surface, which are surface-processed on the smooth smooth surface of the outer ring member. Formed,
Each layer of the armored iron wire was formed by being intimately contacted by frictional force on the inner tapered surface and the outer tapered surface formed on the rough surface of the ring between the multiple sheathed wire members, and surface processed into a smooth smooth surface. By sliding the inner tapered surface of the first ring and the outer tapered surface of the second ring, there is no deviation in the positional relationship between the multiple sheathed wire members, and the collective force is almost the same. A multi-sheathed cable retaining device characterized by being retained.   The inner taper surface and the outer taper surface of the ring between the outer wire members are subjected to uneven processing so that the taper surface becomes rough, and the direction of the uneven portion is perpendicular to the inclined surface, or the outer wire The multi-sheath cable retaining device according to claim 1, wherein the cable is inclined in a large-diameter direction of the ring between members.   The multi-exterior cable retaining device according to claim 1 or 2, wherein a hardened surface layer is formed on each tapered surface of the ring between the armored wire members. A multi-sheath cable in which a multi-layer armored wire member is provided on the outer periphery of the cable, and has a conical inner tapered surface as a retaining surface for retaining the outermost side of the outermost layer of the armored wire member A first ring that is an anchor, and a conical shape that is inclined corresponding to the shape of the inner tapered surface of the first ring that serves as a retaining surface for retaining the inner peripheral side of the innermost layer of the exterior wire member. Corresponding to the shape of the second ring, which is a wedge having an outer taper surface, and the inner taper surface of the first ring and the outer taper surface of the second ring, which are arranged between the layers of the multilayer exterior wire member A conical inner tapered surface that is an inclined retaining surface, and one or a plurality of multiple exterior line member rings provided with an outer peripheral taper surface, Peripheral taper surface and outer taper There both formed on the rough surface as irregular shape, the inner tapered surface and an outer tapered surface of the second ring of the first ring, both the inner peripheral side tapered surface and the outer peripheral side of said multiple armor wire member between the rings In the retaining method for the multiple sheathed cable of the retaining device formed by surface processing on a smooth surface smoother than the tapered surface,
The outer sheath member ring is arranged between the multilayer sheath members, and the outer sheath taper surface is a rough surface of the outer sheath member ring. Forming,
The multiple exterior wire retaining portion is inserted and arranged between the inner tapered surface of the first ring and the outer tapered surface of the second ring,
By press-fitting the first ring and the second ring and collectively grasping and holding the multiple sheathed iron wire, each layer of the sheathed iron wire is formed on the rough surface of the ring between the multiple sheathed wire members. The inner tapered surface and the outer tapered surface are in close contact with each other by frictional force, and the inner tapered surface of the first ring and the outer tapered surface of the second ring formed by surface processing on a smooth smooth surface are slid. The multiple sheathed cable retaining method is characterized in that the positional relationship between the multiple sheathed wire members is not shifted, and is collectively retained with substantially the same compressive force. A multi-sheath cable in which a multi-layer armored wire member is provided on the outer periphery of the cable, and the multi-sheathed cable sandwiches and holds the terminal portion of the armored wire member from the outer peripheral side of the outermost layer and the inner peripheral side of the innermost layer A multiple armored cable retaining device having a retaining portion,
A first ring that is an anchor having a conical inner tapered surface as a retaining surface for retaining the outer peripheral side of the outermost layer of the exterior wire member;
A wedge having an outer tapered surface having a conical shape inclined corresponding to the shape of the inner tapered surface of the first ring as a retaining surface for retaining the inner peripheral side of the innermost layer of the exterior wire member. A second ring;
A conical inner peripheral side that is disposed between layers of the multi-layer exterior wire member and has a retaining surface that is inclined corresponding to the shape of the inner tapered surface of the first ring and the outer tapered surface of the second ring. One or a plurality of rings between multiple sheathed wire members each having a tapered surface and an outer peripheral tapered surface;
With
Both the inner peripheral side taper surface and the outer peripheral side taper surface of the ring between the multiple sheathing line members are formed on the rough surface as an uneven shape ,
The inner taper surface of the first ring and the outer taper surface of the second ring are both processed to be smooth and smoother surfaces than the inner taper surface and outer taper surface of the ring between the multiple sheathed wire members. Formed,
The multiple armored wire retaining portion includes the ring between the armored wire members having an inner peripheral taper surface and an outer peripheral taper surface that are roughened between layers of the multilayer armored wire member, and the multiple armored wire member The multi-layer exterior wire member and the exterior wire member ring are processed into a smooth and smooth surface of the first ring and the second ring has an inner tapered surface in a state where there is no deviation in the mutual positional relationship. A multi-sheathed cable retaining device, characterized in that it is disposed between an outer tapered surface whose surface is processed into a smooth smooth surface.

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