JPH1042443A - End face sealing member for cable wiring closure - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To ensure the watertightness of the closure without using sealing tape for entering and exiting cables of different diameters in the cable connection part housing, improve safety and airtightness, and greatly improve assembly workability. I do. SOLUTION: An end plate 3 into which a cable is inserted is detachably fitted to a central portion of a side wall 2 formed integrally with an end surface of a cylindrical case 1, and a cable fitting hole formed in the end plate 3. 4
In a closure in which a hollow cylindrical cable spacer 6 is interposed, the cable spacer 6 has a penetration of 40 to
90 (10 ^-1 mm), a thermoplastic rubber composition having an elongation of 1500 to 2000% and a tensile stress of 0.5 to 1.5 kg / cm ² , interposed along the cable insertion hole 60;
By forming an inner peripheral surface that is in close contact with the outer periphery of each different-diameter cable and having a cut 63 communicating from the outer periphery to the cable insertion hole 60, the gap around the different-diameter wiring provided in the cable insertion hole 4 is filled. Watertightness and airtightness can be ensured.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealing member for an end face of a cable wiring closure for protecting and housing a connecting portion for connecting and branching a communication cable such as an optical cable or a metal cable.

[0002]

2. Description of the Related Art In general, a cable connecting device uses a housing box for enclosing and protecting a connecting portion of a cable.
This housing box is composed of a vertically-divided cylindrical case, and an end surface portion that closes both end surfaces of the case and allows a cable to pass therethrough. There is known a structure having a structure for maintaining a cable connection portion including an airtight or watertight state.

[0003] In an end face portion used for an access hole of a support wire, an overhead wire or a base line cable, conventionally, a fitting hole prepared in advance (the maximum diameter of the applicable cable) is used.
When attaching a small-diameter cable to a cable, a spacer, a bush, or a rubber tape of a certain thickness is wound around the gap between the end face insertion hole and the cable, and a sealing tape is attached to ensure airtightness and watertightness. There is a type that uses the other, using the end face with a tapered tube,
There is a type that cuts a predetermined position of the tapered part on site according to the cable diameter, but in any case, the joint part with the cable is fixed with sealing tape or PVC tape in consideration of the sealability Was taken.

[0004]

However, according to the conventional method for sealing the entrance and exit holes of various cables to ensure watertightness, the cable is fitted around the outer periphery of the cable in order to fill and seal between the cable and the insertion hole. Although rubber tape and sealing tape are wound to match the insertion hole, the work is complicated, and it is troublesome to add and maintain cables, especially when removing and replacing the sealing tape. Since there is a connecting piece, that is, an outer skin integrally covered with a neck portion, the connecting piece is cut and separated, and when the connecting piece is cut off and separated, the connecting piece becomes a ridge on the outer skin of the optical cable and the supporting wire, and the remaining end plate is inserted. At the time of insertion into the hole, the ridge portion often impairs the sealing performance, and it is difficult to fill the gap even when wrapping the sealing tape. Workability is poor due to the cutting operation, and the variation in cable diameter is so large that it is necessary to replace the tapered end face and rubber tape, etc., resulting in a loss of working time and repair costs. Thank you
In the case of metal cables that are tied together with a large number of steel cores, the outer periphery is uneven, so even if taping, there is a gap, so that the sealing performance cannot be maintained. Since a large number of spacer bushes having the same size are required to be selected and used, and various types of spacer bushes corresponding to cables having different diameters must be stored, handling is extremely troublesome. The present invention is intended to eliminate these conventional drawbacks, and various kinds of cables having different diameters can be safely applied to the entrance and exit of the housing for cable connection without a sealing tape. Another object of the present invention is to provide a simple and inexpensive end face sealing member for a cable wiring closure which can be coped with at a low cost without replacement of parts or the like even when adding or maintaining a cable.

[0005]

According to the present invention, there is provided an end face plate for removably fitting a cable into a central portion of a side wall portion integrally formed on an end face of a cylindrical case surrounding a cable connection portion. The cable spacer is provided with a hollow cylindrical cable spacer interposed in a cable fitting hole formed in the end face plate.
^-1 mm) with an elongation of 1500-2000% and a tensile stress of 0.
It is made of a thermoplastic rubber composition of 5 to 1.5 kg / cm ² , is formed along the cable insertion hole, forms an inner peripheral surface which is in close contact with the outer periphery of each different-diameter cable, and communicates with the cable insertion hole from the outer periphery. It has cuts.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS After a cable is connected to a cable gripping metal fitting in a case, a connecting piece at a necessary portion of a cable sheath is cut off to separate a support wire and a cable portion, and each of them corresponds to the outer diameter of both. After selecting one of the slits on the spacer and separating the continuous wall, the spacer is expanded and fitted from the notch, and the cable or support wire holding the projection of the connecting piece is passed along the inner circumference of the spacer as it is. When the spacers are pressed together, the spacers are elastically deformed and brought into close contact with no gap. After the branch connection of the cable, the tension member gripping metal is tightened with the mounting bolt along with the support wire. Next, a cable with a cable spacer is inserted into the cable insertion hole in the end face plate, the end face plate is arranged in a case, and a locking mechanism provided in the case is fastened to greatly enhance the sealing performance, thereby improving safety. It is used for.

When a cable is inserted into the cable insertion hole, if there is a slit in the cable spacer, a continuous wall portion of the slit having a diameter equal to the cable diameter is cut off at the site to correspond to the opening, and the cable spacer is opened. Watertightness can be ensured after cable charging and assembling. In addition, the support wire inserted into the support wire insertion hole of the end face plate is also used by fitting a spacer together with the cable, and it is easy to ensure the airtightness and watertightness of the cable without sealing tape, and the handling of cables of different diameters Since it can be simplified and no sealing tape is required, the time for assembling and disassembling operations can be greatly reduced, and replacement and replacement of parts and the like are not required during expansion or maintenance, so that the cost can be significantly reduced.

[0008]

EXAMPLES To illustrate the present invention in the example of FIGS. 1-3, the cylindrical case 1 encapsulating the periphery of the optical cable connecting portion, the hinge portion 1 ₁ which is沿設axially, the hinge portion 1 and a counter deployed divided edges 1 _2, 1 ₂ to _1, expanding freely configured, the cable to the central portion of the side wall portion 2 formed integrally with the end face of the tubular casing 1 fitted The end face plate 3 is detachably fitted, and a cable fitting hole 4 formed in the end face plate 3 is formed.
In a closure in which a hollow cylindrical cable spacer 6 is interposed, the cable spacer 6 has a penetration of 40 to
90 (10 ^-1 mm), an elongation of 1500 to 2000% and a tensile stress of 0.5 to 1.5 kg / cm ² are made of a thermoplastic rubber composition, and are spaced concentrically along the cable insertion hole 60. A plurality of ring-shaped slits 61 are formed,
At least one end of each slit 61 is provided with a continuous wall portion 62 which can be freely contacted and separated, and a cut 63 communicating from the outer periphery to the cable insertion hole 60 is provided. Is formed of a slit 5 having a ring shape of a different diameter leaving a part of the slit 5.

The end plate 3 may have a plurality of sealing ribs 9 protruding from the outer peripheral surface of the end plate, and may be formed with a stepped portion to be fitted to the side wall portion 2 if necessary. The elastic end face plate having the insertion holes 4 ₁ and 4 ₂ , the overhead wiring or base line cable insertion hole 4 and the support line insertion hole 14, or the cable insertion hole 4 and the support line insertion hole 14 were formed. an elastic end sheet, slits 10, 10 _1, 1 penetrating from the circumferential side of the elastic end plates to each insertion hole 4,4 _1, 4 ₂
0 consists of _two those with, the cable insertion hole 4,4
_A plurality of different-diameter slits 5 are provided concentrically or eccentrically around the _first and _second portions, leaving a part of the end plate thick portion. The cylindrical casing 1 is a cylinder or a square cylinder, fitted both dividing edges 1 _2, 1 ₂ in separate case of forming the fitting groove 12 of the end plates 3 as its side wall 2 The outer peripheral edge of the end face plate 3 can be contacted and integrated at a high density.

The optical cable insertion holes 4 ₁ and 4 ₂ , the overhead wiring or base line cable insertion hole 4, and the support line insertion hole 14 formed in the end face plate 3 are formed from the peripheral side surface of the elastic end face plate. Slits 10, 10 ₁ , 10 ₂ communicating with each fitting hole
And a slit 11 is provided between the base line cable insertion hole 4 and the support line insertion hole 14 to easily insert a cable such as a cable. After the insertion, the slit is closely contacted and sealed. The sex is kept properly. The slits 10, 10 ₁ , 10 ₂ may be straight lines parallel to the axial direction or bite joints in the axial direction, for example, uneven, Z-shaped, S-shaped.
Shape or Ω shape, and those closely contacted are used.

[0011] Incidentally, in the end face plate 3, fitted, such as a cable insertion hole 4,4 _1, 4 _2, with necessary incisions in the thin cap portion (not shown), were excised thin walled cap portion Alternatively, it may be used as a through hole. Furthermore, the cable spacer 6 of the elastic hollow cylindrical body, the cable insertion hole 4,4 _1, 4 ₂ and each of the support wire insertion hole 14 be those that are deployed, the ring-shaped on the outer periphery as necessary sealing ribs A plurality of gaskets 64 are provided to protrude at intervals in the axial direction to perform a gasket function.

In this case, the cable spacer 6 is made of a low-hardness rubber (Shore hardness 0 to 30) having a large elongation and a large tensile stress (modulus).
90, preferably 50 to 70 (10 ^-1 mm JIS K
2560) and an elongation of 1500 to 2000, preferably 1
700-1900% (JIS K6301) and tensile stress 100% -0.5 kgf / cm ² , 300% ──1.
0 kgf / cm ² , 400% ──1.4 kgf / cm ²
(JIS K6301) thermoplastic rubber composition such as EPDM, silicone rubber, butyl rubber, styrene / butadiene rubber, or fluorine rubber (Hs), more specifically, specific gravity 1.0 to 1.05, tensile strength 31. Compression set at 0 kgf / cm ² (70 ° C. × 22
H) is 63.0%, and the spacer is elastically deformed even if the ridge of the connecting piece remains on the support wire or the cable jacket or the outer periphery of the twisted metal cable is uneven. The cuts 63 formed in the spacer 6 can be linearly parallel to the axial direction, or can be cut in the axial direction, for example, uneven, Z It can be used effectively as long as it has a shape that is close in shape, S shape or Ω shape, or has a close surface in the axial direction even if there is a slight gap.

Along the cable insertion hole 60,
Since there are a plurality of slits 61 of different diameters around the periphery, a slit corresponding to the diameter of the cable or the cable fitting hole 4 on the side of the end face plate 3 can be cut out so that the contacting peripheral surfaces can be brought into close contact with each other to maintain high sealing performance. Can be used. It is preferable that the gap between the slits 61 is as small as possible to improve the adhesion.

Even if the cut 63 is cut linearly in the radial direction, the cut 63 is preferably as long as possible and has a large bonding area, and it is considered that the cut 63 is cut in an uneven shape, hook shape or wavy shape. . In particular, the cable spacer 6
After inserting the cable spacer 6 into the cable, the step of setting the end plate 3 is performed.
In order not to open the mating part, it is considered that a proper sealing property is exerted by taking a long area in the circumferential direction and separating it so as to secure a large bonding area.

A trunk optical cable A penetrates through the fitting hole 4 of the end face plate 3 and is fixed by a cable holding metal fitting 21. The tension member of the cable A is connected and connected to a tension member holding metal fitting 20 of a support clamp. The support wire B is fixed to the support wire holding bracket 28. The split case 1 is a cylindrical housing, one side of which can be split along the axial direction at one side by a separation joining surface, and is made of a synthetic resin, for example, a PP resin or a flame-retardant FRPP. A butt joint surface that is vertically divided into two parts in the axial direction, and an end seal member 3 that penetrates cables on both sides of the cable connection portion at both ends of the case 1, and the end seal member 3 is attached to the side wall 2. Tightening lock latch 2
The case 1 is provided with a subunit 23 having a connection portion and a connection extra length storage portion 24 in the case 1.

The through holes formed by the cable insertion holes 4 ₁ and 4 ₂ and the overhead wiring cable insertion holes 4 have slits 5 of different diameters around the through holes, so that an airtight tape is wound around the cable. The slit selected according to the cable diameter can be cut off without contacting the outer peripheral surface of the cable. The support line fitting hole 14 and the base line cable fitting hole 4 communicate with each other through the slit 11 and are spaced apart from each other by a connecting piece with the cable type in which the connecting portion between the support wire and the cable is continuous with the covering. It can be used for any cable of the cable type connected. Also, since there are various cable diameters and support wire diameters, several slits corresponding to each cable are inserted halfway in the thickness direction of the end face plate, and cut off at the site to select the fitting hole diameter. To match the cable diameter. Further, when a small-diameter cable is applied to the cable spacer 6 provided on the end face plate 3, the cable A or the supporting wire B can be used without replacing the cable spacer.
A low-hardness rubber having a large elongation and a large tensile stress, for example, a sealing tape having a hardness of 0 to 30 Hs, may be wound around to obtain a large diameter for good sealing. In addition, the end face plate 3 as the end face seal member may be configured such that a pair of end face plates 3 and 3 are connected in series at a hinge portion, and a pair of separated end face plates are superposed and integrated.

In the embodiment shown in FIG. 4, slits 61, 61 are provided from both ends of the cable spacer 6 in parallel with the cable insertion hole 60 toward the center, and a continuous wall portion 62 which can be separated is formed at the center. It is considered that the gap width of the slit 61 is as small as possible, so that a sufficient sealing function can be achieved.The slit 61 corresponding to the cable diameter is selected and cut off, and the inner peripheral surface is brought into close contact with the cable. Available for use. Further, the continuous wall portion 62 between the slits 61, 61 can be provided so as to be offset to one end face, that is, the slit 61 on the outer end face side can be made shallow, and the slit on the inner end face side can be made to face in a deepened form. In any case, the cable insertion hole 60 is inserted into the cable spacer 6 from the outer periphery.
There is a cut 63 that communicates with the cable, and the cable is expanded through the cut 63 to facilitate insertion.

In the embodiment shown in FIGS. 5 and 6, the cylindrical case 1
The end face plate 3 of the end face seal member provided on the side wall portion 2 of the first embodiment is provided with a base line cable insertion hole 4 and a support line insertion hole 14, a plurality of slits 5 and 15 having different diameters are formed, and the cable is inserted from the peripheral side surface. The slit 10 communicating with the hole 4 is connected to the two fitting holes 4 and 14, or the slit 11 extending from the fitting hole 14 to the outer surface is provided, and a plurality of drop cable insertion portions 18 are formed in a lower portion. The insertion portion 18 has an outer end surface side or an intermediate portion closed with a thin film, and the thin film portion is cut off as necessary to form a through hole so as to enhance the sealing property. The thin film remains in the unused insertion hole 18. Either as is, or as required with an obturator plug (not shown) fitted. In this embodiment, the case has the same configuration as that of the previous example. The case is a high-density housing case, and the internal structure is provided with an outdoor wire gripping metal fitting 25, and a spare length storage case 26 for housing a storage sheet in which a fiber core wire is further inserted. It has a structure including a cord storage portion of a shelf storage type capable of being inserted in a large number and a connector holder 27, and a large number of drop wire lead-out portions 28 are provided on the case side wall portion 2.

The elastic hollow cylindrical cable spacer 6 fitted in each of the fitting holes 4 and 14 has a ring-shaped sealing rib 16 protruding in the outer circumferential direction and communicates from the outer circumferential surface to the inner circumferential surface. A Ω-shaped or Z-shaped cut 63 is provided to improve the drip-proof property after the conductor is inserted and to ensure that the inside and outside of the case can be shut off. Then, the bottom surface of the case 1, the cable clamping hardware 25 with the tension member gripping portion 25 ₂ is connected to the cable clamping hardware 25 integral with the other end Example secured in the mounting piece by a connecting rod 25 ₁ .

In the examples of FIGS. 7 and 8, the end face plate 3 having a plurality of sealing ribs 9 protruding from the outer peripheral side face has a hardness of 40 to 70 Hs.
Using EPDM, hardness 0-30Hs in the cable fitting hole 4
The cable spacer 6 of the thermoplastic rubber composition is molded integrally, that is, the cable spacer 6 has a penetration of 40 to
90 (10 ^-1 mm), made of a thermoplastic rubber composition having an elongation of 1500 to 2000% and a tensile stress of 0.5 to 1.5 kg / cm ² , and are integrated along the cable fitting hole 4,
Or a two-layer molded article inner peripheral surface at intervals providing a plurality of ring-shaped ridges _61, or a separate cable spacer 6
And a notch 63 communicating from the outer periphery to the cable insertion hole with an increased bonding area. For example, the notch 63
Is provided with a cable spacer 6 which is uneven, Z-shaped, S-shaped or Ω-shaped with respect to the axial direction. In this case, the end surface plate 3, insertion hole 4 ₁ fitted cable as in the example of FIG. 3,
It is preferable to use a slit _{2 having a} diameter of 42 and a ring 5 of a different diameter, slits 10, 10 ₁ , 10 ₂ , 11, and 15 serving as cut lines, and a support wire insertion hole 14.

As shown in FIG. 9, the cable spacer 6 is formed such that the cuts 63 are sequentially shifted spirally from the cable insertion hole 60 toward the outer peripheral surface, and are cut and separated at the cuts 63. By using a cable spacer that enhances adhesiveness, high sealing properties can be maintained and used effectively.

In the example of FIG. 10, the cable spacer 6 extends at a penetration of 40 to 90 (10 ^-1 mm) and extends from 1500 to 200.
It is made of a thermoplastic rubber composition having 0% and a tensile stress of 0.5 to 1.5 kg / cm ² , and is formed into a tube that is gently bent along the inner and outer peripheries of the cable insertion hole 60, and is formed on the tubular wall portion. A notch 63 communicating from the outer periphery to the cable insertion hole 60 is provided, so that the diameter of the cable can be absorbed by a change in the inner and outer diameters, and particularly, the concave portion can be escaped, so that the sealing property of the spacer press-fitted around the cable is provided. It is intended to enhance.

The cable spacer 6 has a penetration of 40 to 90 (10 ^-1 mm) and an elongation of 1500 to 2000%.
And a stretchable band made of a thermoplastic rubber composition having a tensile stress of 0.5 to 1.5 kg / cm ² , wound around a cable, and superposed step portions 65 and 66 near both ends corresponding to the cable.
Are formed, and the locking uneven portions 67,
68 For example, by providing a projection and a projection insertion hole, it is possible to securely insert and fix, and furthermore, expand and contract around the cable to cover the cable and expand and contract the change in diameter with respect to a cable having a different diameter, thereby improving the sealing performance. There Te, further optionally on the inner and / or outer surface, the sealing ribs ₆₁ of the ridge may be more Article projected.

[0024]

According to the present invention, an end face plate for inserting a cable is detachably fitted to a central portion of a side wall portion integrally formed on an end face of a cylindrical case surrounding a cable connection portion. In a closure in which a hollow cylindrical cable spacer is interposed and provided in a cable insertion hole formed in an end face plate, the cable spacer elongates at a penetration of 40 to 90 (10 ^-1 mm), 1500 to 2000%, and has a tensile stress of 0. 0.5-1.5kg
/ Cm ^{2 made} of a thermoplastic rubber composition, having an inner peripheral surface interposed along the cable insertion hole and in close contact with the outer periphery of each of the different diameter cables, and having a notch communicating from the outer periphery to the cable insertion hole. Therefore, even if the projecting portion of the connecting piece remains on the support wire of the different diameter type or the cable jacket, or the outer periphery is uneven like a twisted metal cable, it can be handled by the cable spacer, and it is elastically deformed. It is tightly adhered to the end face plate without gaps and can ensure drip-proof performance, ensuring watertightness for cable lead-out, and suitable for cable lead-in and lead-out of various cables with different diameters It can be applied safely with a simple sealing, the assembly and disassembly work time is greatly reduced, and at the same time, it is possible to cope with additional cables and maintenance at low cost without replacement of parts etc. Attitude of the nest is also handling a good stable, helps to ease of assembly work, also enhance the safety and watertight, airtight can significantly improve the reliability.

[Brief description of the drawings]

FIG. 1 is a partially exploded perspective view showing a use deployment state of an embodiment of the present invention.

2 (a) is a front view, FIG. 2 (b) is a side view, FIG. 2 (c) is a rear view, and FIG. 2 (d) is AA.
FIG.

3 (a) is a front view, FIG. 3 (b) is a longitudinal sectional view, FIG. 3 (c) is a rear view, and FIG. 3 (d) is a plan view.

FIG. 4 illustrates another example cable spacer of the present invention;
(A) is a front view, (b) is a side view, (c) is a rear view,
(D) is an enlarged vertical cross-sectional view taken along line BB.

5A and 5B are end views of another example of the present invention, wherein FIG.
(B) is a longitudinal sectional view, (c) is a rear view, and (d) is a plan view.

FIG. 6 is a perspective view showing one used and deployed state used in the example of FIG. 5;

FIG. 7 shows an end plate according to still another embodiment of the present invention;
(A) is the front view, (b) is a longitudinal cross-sectional view.

8A and 8B show a cable spacer used in the example of FIG. 7, wherein FIG. 8A is a longitudinal sectional view, FIG. 8B is a front view, FIG. 8C is a longitudinal sectional view of still another example, and FIG. FIG.

FIG. 9 shows another cable spacer of the present invention, wherein (a)
Is a longitudinal sectional view of the used state, (b) is a front view, (c) is an enlarged cut front view, and (d) is a cut front view of the developed state.

10A and 10B show another cable spacer of the present invention, wherein FIG. 10A is a longitudinal sectional view and FIG. 10B is a front view.

11A and 11B show a cable spacer according to still another embodiment, wherein FIG. 11A is a longitudinal sectional view and FIG. 11B is a plan view.
FIG. 4 is a cross-sectional view taken along line CC, and FIG. 4D is a longitudinal sectional view in a fitting use state.

[Explanation of symbols]

1 the cylindrical case 1 _first hinge part 1 ₂ divided edges 2 side wall portion 3 the end plate 4,4 _1, 4 ₂ cable insertion hole 5 slit 6 cable spacer 60 cable insertion hole 61 slit 62 continuous wall portion 63 cuts 8 cuts 9 Rib for sealing 10, 10 ₁ , 10 ₂ , 11, 15 Slit 12 Fitting groove 14 Support wire fitting insertion hole 16 Ring-shaped rib

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[Procedure amendment]

[Submission date] December 16, 1996

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0004

[Correction method] Change

[Correction contents]

[0004]

However, according to the conventional method for sealing the entrance and exit holes of various cables to ensure watertightness, the cable is fitted around the outer periphery of the cable in order to fill and seal between the cable and the insertion hole. Rubber tape and sealing tape are wound to match the insertion holes.However, in this work of winding the sealing tape, it is essential to attach and fix the adhesive tape at the beginning and end, which is troublesome. In addition, the sealing tape is hard and difficult to wind because of the drawbacks such as poor workability, and the work is complicated.At the time of extension and maintenance of the cable, the removal and replacement of the sealing tape are particularly troublesome. Now, connect the supporting wire attached to the optical fiber to the connecting piece,
That is, since there is an outer cover integrally covered with the neck, when the connecting piece is cut and separated, when the connecting piece is inserted into the insertion hole of the remaining end face plate as a ridge on the outer skin of the optical cable and the support wire,
The ridges often interfere with the sealing performance, and it is difficult to fill the gaps even with a sealing tape wound therewith. Due to the large variation in diameter, it was necessary to replace the tapered end face, rubber tape, etc., resulting in a loss of work time and repair cost, and this was a problem.
In the case of metal cables that are tied together with a large number of steel cores, the outer periphery is uneven, so even if taping, there is a gap, so that the sealing performance cannot be maintained. Since a large number of spacer bushes having the same size are required to be selected and used, and various types of spacer bushes corresponding to cables having different diameters must be stored, handling is extremely troublesome. The present invention is intended to eliminate these conventional disadvantages, and allows various cables of different diameters to be safely applied to the entrance and exit of the housing for cable connection without a sealing tape. The assembly and disassembly work time is greatly reduced without lowering, and a simple and inexpensive end-face sealing member for cable wiring closures that can be used at low cost without additional cables and replacement of parts during maintenance. It is intended to be provided in a form.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction contents]

When a cable is inserted into the cable insertion hole, if there is a slit in the cable spacer, a continuous wall portion of the slit having a diameter equal to the cable diameter is cut off at the site to correspond to the opening, and the cable spacer is opened. Watertightness can be ensured after cable charging and assembling. In addition, the support wire to be inserted into the support wire insertion hole of the end face plate is also used by fitting a spacer together with the cable, without using sealing tape, and without using adhesive tape even if using sealing tape, the airtightness and watertightness of the cable Easy to secure, easy access of cables of different diameters, and no need for sealing tape or adhesive tape, greatly shortening assembly and disassembly work time, parts etc. during expansion and maintenance The cost can be greatly reduced without the need for replacement.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0016

[Correction method] Change

[Correction contents]

The through holes formed by the cable insertion holes 4 ₁ and 4 ₂ and the overhead wiring cable insertion holes 4 have slits 5 of different diameters around the through holes, so that an airtight tape is wound around the cable. The slit selected according to the cable diameter can be cut off without contacting the outer peripheral surface of the cable. The support line fitting hole 14 and the base line cable fitting hole 4 communicate with each other through the slit 11 and are spaced apart from each other by a connecting piece with the cable type in which the connecting portion between the support wire and the cable is continuous with the covering. It can be used for any cable of the cable type connected. Also, since there are various cable diameters and support wire diameters, several slits corresponding to each cable are inserted halfway in the thickness direction of the end face plate, and cut off at the site to select the fitting hole diameter. To match the cable diameter. Further, when a small-diameter cable is applied to the cable spacer 6 provided on the end face plate 3, the cable A or the supporting wire B can be used without replacing the cable spacer.
A low-hardness rubber having a large elongation and a large tensile stress, for example, a sealing tape having a hardness of 0 to 30 Hs, may be wound around to obtain a large diameter for good sealing. For example, the outer circumference of the cable A to be inserted into the hollow cylindrical cable spacer 6 disposed on the end face plate 3 is extended at a penetration of 40 to 90 (10 ^-1 mm) to 1500 to 200.
A sealing tape made of a thermoplastic rubber composition having 0% and a tensile stress of 0.5 to 1.5 kg / cm ² is wound and interposed between the cable spacer 6 and the cable A so that the cable spacer is not replaced. However, it is possible to cope with different diameter cables with increased sealability, and the sealing tape is soft and easy to wind around the cable, and it has adhesiveness, so it can be fixed without adhesive tape, and workability and reliability can be improved. it can. In addition, the end face plate 3 as the end face seal member may be configured such that a pair of end face plates 3 and 3 are connected in series at a hinge portion, and a pair of separated end face plates are superposed and integrated.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Ikuya Tsuruta 4-35-3 Yoyogi, Shibuya-ku, Tokyo Inside Japan Recomm Inc. (72) Mitsuo Kama 3-19-2 Nishishinjuku, Shinjuku-ku, Tokyo Japan Within Telegraph and Telephone Co., Ltd. Inside (72) Inventor Yoshiyuki Yoshii 3-19-2 Nishi-Shinjuku, Shinjuku-ku, Tokyo Nippon Telegraph and Telephone Corporation

Claims (10)

[Claims] An end plate for inserting a cable is detachably fitted to a central portion of a side wall portion integrally formed on an end surface of a cylindrical case enclosing the periphery of a cable connection portion, and formed on the end plate. In a closure in which a hollow cylindrical cable spacer is interposed in a cable insertion hole to be inserted, the cable spacer extends at a penetration of 40 to 90 (10 ^-1 mm) and is 1500 to 1500.
A plurality of ring-shaped slits are formed at intervals on a concentric circle along the cable insertion hole, and are formed of a thermoplastic rubber composition having 2000% and a tensile stress of 0.5 to 1.5 kg / cm ² . An end face sealing member for a cable wiring closure, comprising: a continuous wall portion that is freely contactable and detachable on at least one end side; and a cutout communicating from an outer periphery to a cable insertion hole. 2. The end face sealing member in a cable wiring closure according to claim 1, wherein said cable spacer has a plurality of annularly projecting seal ribs protruding from an outer periphery thereof at intervals in an axial direction. 3. The end face seal member according to claim 1, wherein the end face plate is formed by a ring-shaped slit having a cable fitting insertion hole and a part of a thick portion of the end face plate left. 4. The end face according to claim 1, wherein said end face plate is an elastic end face plate having a cable fitting hole and a support wire fitting hole formed therein, and a plurality of drop wire lead-out holes are arranged. Seal member. 5. An end plate for inserting a cable into a central portion of a side wall portion integrally formed on an end surface of a cylindrical case enclosing the periphery of a cable connection portion, and is detachably fitted to the end surface plate. In a closure in which a hollow cylindrical cable spacer is interposed in a cable insertion hole to be inserted, the cable spacer extends at a penetration of 40 to 90 (10 ^-1 mm) and is 1500 to 1500.
It is composed of a thermoplastic rubber composition having 2000% and a tensile stress of 0.5 to 1.5 kg / cm ² , is integrated along a cable fitting hole, and is provided with a plurality of ring ridges at intervals on an inner peripheral surface. An end face sealing member in a cable wiring closure. 6. The cut has an uneven shape with respect to the axial direction.
6. The cable spacer according to claim 5, wherein the cable spacer has a shape of S, S or Ω. 7. The notch is formed so as to be spirally displaced sequentially from the cable insertion hole toward the outer peripheral surface.
The described cable spacer. 8. An end plate for inserting and inserting a cable is detachably fitted to a central portion of a side wall portion integrally formed on an end surface of a cylindrical case enclosing the periphery of the cable connection portion, and formed on the end surface plate. In a closure in which a hollow cylindrical cable spacer is interposed in a cable insertion hole to be inserted, the cable spacer extends at a penetration of 40 to 90 (10 ^-1 mm) and is 1500 to 1500.
It is made of a thermoplastic rubber composition having 2000% and a tensile stress of 0.5 to 1.5 kg / cm ² , and is formed into a tube which is gradually bent along the inner and outer peripheries of the cable insertion hole. An end face sealing member for a cable wiring closure, comprising: a notch communicating with a cable insertion hole from the end. 9. An end face plate for removably fitting a cable into a central portion of a side wall portion integrally formed on an end face of a cylindrical case enclosing the periphery of a cable connection portion, and formed on the end face plate. In a closure in which a hollow cylindrical cable spacer is interposed in a cable insertion hole to be inserted, the cable spacer extends at a penetration of 40 to 90 (10 ^-1 mm) and is 1500 to 1500.
The thermoplastic rubber composition having a 2,000% tensile stress of 0.5 to 1.5 kg / cm ² is formed in a stretchable belt shape, and is wound around a cable to form a superposed step near both ends corresponding to the superposed step. An end face sealing member in a cable wiring closure, comprising a locking uneven portion on a surface portion. 10. The cable spacer according to claim 1, wherein the cable spacer has an inner surface and / or an inner surface.
10. The cable spacer according to claim 9, wherein a plurality of ridges are provided on the outer surface at intervals in a circumferential direction.