JPH09274122A - Optical cable closure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve workability and to provide a safe and highly reliable optical cable closure by making it possible to easily assemble the juncture of a drop cable to be dropped down from an assembled cable without tools in enclosing and protecting this juncture with a sleeve. SOLUTION: This closure has the freely expandable sleeve 1 capable of enclosing the juncture of the assembled cable A and end face spacers 2 for sealing between the sleeve 1 into and from which the cable A and the conductors of a supporting wire B hanging the cable A are put and the conductors from each other. The sleeve 1 has rugged parts 3 for detention which are mountable by one operation to the end face spacers 2 and fitting stoppers 5 to the end face spacers 2. The end face spacers 2 consist of the end face spacers 2 having insertion holes 6, 7 for the assembled cable A and the supporting wire B and the end face spacers 21 on the dropping down side having insertion holes 6, 7, 8 for the assembled cable A, the supporting wire B and plural drop cables C.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical cable closure, more specifically, a case surrounding a connection portion of a drop cable branched from an overhead cable provided in a collective cable, and more particularly, a connection used in the field of telecommunications for easy access. It is about the case.

[0002]

2. Description of the Related Art Generally, a cable connection closure is
Both end face plates are composed of end face plates that are used around the cable to protect the connection part from the environment and that are attached through the cable, and a vertically split cylindrical sleeve that covers and accommodates the connection part. A structure is often used in which a sleeve is mounted between the sleeves, and the abutting portions of the sleeves are connected by a fixing means such as a mounting screw so as to be integrated to protect the cable connecting portion in an airtight and watertight manner.

[0003]

In the conventional housing for protecting the connecting portion of the cable, one of the collective cables has a jacket cut off when the cable is branched, pulled in, or connected. It is pulled out and connected as a drop or drop cable to the individual subscriber, surrounded by the connection and a secure seal is required. However, the type in which the sleeve is integrated with a fixing means such as a mounting screw requires a work tool and the work is complicated, and the tightening screw member is liable to loosen over time and may come off or the sealing performance may deteriorate. However, there was a problem in management because it was necessary to re-tighten regularly, and the number of inspection man-hours at the end of the cable increased. The present invention is intended to eliminate these conventional drawbacks, and eliminates a fixing means such as a screwing, can be easily worked without a tool, has a reduced number of parts, and is a remarkably easy access case. The purpose is to reduce the man-hour cost.

[0004]

According to the present invention, there is provided a deployable sleeve capable of enclosing a connection portion of a collective cable, and a sleeve and a conductor through which a cable and a conductor of a supporting wire on which the cable is suspended enter and exit. An optical cable closure having an end face spacer for sealing, wherein the sleeve has a concave and convex portion for locking that can be attached to the end face spacer with one touch, and a fitting stopper for the end face spacer. The end surface spacer on the pull-down side is composed of an end surface spacer having an insertion hole for a collective cable, a support wire and a plurality of drop cables, and a slit reaching the outer peripheral side from each insertion hole and a virgin formed in the drop cable insertion hole. It has a sex partition wall, and is configured to seal a collective cable and a drop cable including a supporting wire to be inserted.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION In the embodiments of the present invention, when a drop cable is dropped from a collective cable as a service line to a telephone subscriber, a pair of end face spacers are provided in a slit in a collective cable suspended from a support line. Expand and insert from the slit to fit and deploy, cut off the collective cable jacket between each end face spacer and pull out and cut one or more cables to make drop cables, and then put the drop cables through connectors. Connect the drop cable through the slit in the drop cable insertion hole to the virgin partition wall or cut it out, insert the drop cable and insert it through the end spacer, and then connect the sleeve by covering the outer circumference of the end spacer. Enclose the parts and engage the uneven parts for locking, and can be integrally connected with one touch and mounted in a sealed state. Debited from Buru can be conveniently.

[0006]

1 to 4, an expandable sleeve 1 capable of enclosing a connecting portion of a collective cable A, a cable A and a supporting wire B on which the cable is suspended. Is an optical cable closure including a sleeve 1 into and out of which the conductor goes in and out, and an end face spacer 2 that seals between the conductor, and the sleeve 1 can be attached to the end face spacer 2 with one touch. , 4, and
It has a fitting stopper 5 to the end face spacer 2, and the end face spacer 2 has insertion holes 6 for the collective cable A and the support wire B.
End surface spacer 2 with 7, cable A, support wire B
And consists end spacer 2 ₁ Metropolitan debit side with insertion holes 6, 7, 8 of a plurality of drop cables C, the slit 9 and 10 reach the outer peripheral side from the insertion holes 7 and 8, the drop cable insertion hole 8 The optical cable closure has a virgin partition wall 8 ₁ formed therein and seals a collective cable A and a drop cable C including a support wire B to be inserted.

The sleeve 1 is a cylindrical body extending in the cable core direction and is opened and closed centering on a hinge portion 11 which is continuous in the longitudinal direction, and is provided with a concave and convex portion 3 for locking at a butt separation side edge. , 4, one of which is a clip member 12 having a recess 3.

The end face spacers 2, 2 ₁ are made of EPO.
It is a cylindrical body made of M, and is provided with a locking concave groove 15 for fitting a fitting stopper of the sleeve on the outer circumference of the cylindrical body, and a slit 16 or communication is provided between the collective cable insertion hole 6 and the support wire insertion hole 7. A stepped portion 13 is formed on the inner peripheral surface of the assembled cable insertion hole 6 with a gap provided, and the cut end of the outer jacket is locked. Further, one opening edge of the insertion hole 6 is formed into a curved surface 14 to be assembled. The cable A can be easily inserted and locked.

In this case, an example is shown in which the end face spacer 2 ₁ on the pull-down side is provided on one side, but when pulling from both sides, both end face spacers 2 ₁ having the drop cable insertion holes 8 may be used.

As shown in FIG. 4, the drop wire C dropped from the sleeve 1 of the aerial closure attached to the collective cable A is introduced into the optical cable connecting storage case E installed in the building D, and then the drop optical cable is introduced. It is branched and routed to an optical outlet G via F, and is used by being connected to a terminal device H with a termination cable.

The engaging concave and convex portion lengths 3 and 4 correspond to the engaging hole and a claw-like convex portion fitted in the engaging hole near the abutting edge of the sleeve so that they can be engaged and disengaged with one touch. If the clip member 12 is used in combination, the work operability can be simplified.

Further, the fitting stopper 5 is a rib-shaped partition wall projecting from the inner circumference of the sleeve 1 which can be opened and closed, and the end surface spacers 2 and 2 ₁ are appropriately pressed from the outer circumference to seal the inside of the sleeve. However, an end piece that fills the space between the drop cable C that exits the sleeve 1 and the sleeve may be provided.

[0013]

According to the present invention, a deployable sleeve capable of enclosing a connecting portion of a collective cable and an end face for sealing between the sleeve and the conductor into and out of which the cable and the conductor of a supporting wire on which the cable is suspended are inserted. An optical cable closure provided with a spacer, wherein a sleeve has an engaging concave and convex portion that can be attached to the end face spacer with one touch, and a fitting stopper to the end face spacer. The end surface spacer of is composed of an end surface spacer having an insertion hole for a collective cable, a support wire and a plurality of drop cables, a slit reaching the outer peripheral side from each insertion hole, and a virgin partition wall formed in the drop cable insertion hole. With a structure that seals the collective cable and the drop cable including the support wire that is inserted, it is fixed by screwing etc. A connection case that eliminates steps and is simple to work without tools, and has a significantly reduced number of parts and is extremely easy to access.The cost of the structure and man-hours can be reduced, and the wiring of the cable connection can be handled easily. Workability can be greatly improved.

[Brief description of drawings]

1A and 1B show an embodiment of the present invention, in which FIG. 1A is a perspective view showing a use state, and FIG. 1B is a perspective view showing a separated state.

2 shows the sleeve of the example of FIG. 1, (a) is a developed side view thereof, (b) is a developed plan view, (c) is a rear view, (d).
Is a vertical sectional view taken along the line AA.

3A and 3B show the end surface spacer of the example of FIG. 1, in which FIG. 3A is an inner front view, FIG. 3B is a longitudinal sectional view, and FIG. 3C is an outer front view.
(D) is a partially enlarged front view and (e) is a vertical cross-sectional view taken along the line BB.

FIG. 4 is a schematic diagram showing an optical cable installation state in an embodiment of the present invention.

[Explanation of symbols]

A Collective cable B Support wire C Drop cable 1 Sleeve 2,2 ₁ End surface spacer 3,4 Locking uneven part 5 Fitting stopper 6,7,8 Insertion hole 9,10 Slit 11 Hinge part 12 Clip member 13 Step part 14 Curved surface 15 Locking groove 16 Slit

Claims (4)

[Claims] 1. An expandable sleeve capable of enclosing a connection part of a collective cable, and an end face spacer for sealing between the sleeve and the conductor into and out of which the cable and a conductor of a supporting wire on which the cable is suspended are inserted. In the optical cable closure, the sleeve has a concave and convex portion for locking that can be attached to the end face spacer with one touch, and a fitting stopper for the end face spacer, and the end face spacer on the pull-down side of the end face spacer is , An end spacer with an insertion hole for a collective cable, a supporting wire and a plurality of drop cables,
It has a slit that reaches the outer peripheral side from each insertion hole and a virgin partition wall formed in the drop cable insertion hole, and is configured to seal the collective cable and the drop cable including the supporting wire to be inserted. A characteristic optical cable closure. 2. The sleeve is a cylindrical body extending in the cable core direction and is openably and closably deployed around a hinge portion that is continuous in the longitudinal direction, and one of the engaging and recessing portion is formed on the side edge of abutment separation. The optical cable closure according to claim 1, further comprising a clip member having: 3. The optical cable closure according to claim 1, wherein the end surface spacer is a cylindrical body made of EPDM, and a locking groove for fitting the fitting stopper of the sleeve is provided on the outer circumference of the cylindrical body. . 4. The end spacer includes an end spacer having an insertion hole for a collective cable and a support wire, and a collective cable.
4. The optical cable closure according to claim 1, comprising a support wire and a spacer on the pull-down side having insertion holes for a plurality of drop cables, each insertion hole having a conductor insertion slit.