JP2887413B2 - Connection terminal box and core distribution device that accommodates connection terminal box - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a connection terminal box having an interference function (FD interface function) for absorbing a difference in installation amount at feeder points of a communication line subscriber wiring system, and the connection terminal. The present invention relates to a core distribution device that accommodates a connection terminal box housed in a box.

2. Description of the Related Art At present, a subscriber wiring line is provided with a necessary number of communication lines in a wiring system facility (wiring cable) for distributing communication lines to each subscriber and a wiring system facility divided into appropriate sizes (regions). Feeder system equipment (feeder cable) sent as a bundle from (former telephone office)
Can be roughly divided into

Due to the nature of current wiring methods, the general number of distribution cable pairs is greater than the number of feeder cable pairs. Therefore, an interface (Feeder Diatribution interface) function is required at the connection point (feed line point) to absorb the difference in equipment amount. Currently, this function is performed by the FD (Feeder Diatribution) cabinet.

The current FD cabinet has a method of dividing the number of feeder cables sent to the line point into 100 pairs and dividing it into 10 pairs, and distributing it to wiring system equipment wired in 10 pairs.
There are two types of shapes: a type that is fixed to a pillar like a sign, and a type that is installed on a pillar above a cable with a platform. However, in many cases, installation is difficult due to physical reasons or aesthetic reasons, and the processing of the difference in the amount of equipment at the actual feed point is often performed by using a wiring system for the core wire 1 of the feed line equipment. This is performed by a multi-connection method of connecting the equipment core wires 2.

Problems to be Solved by the Invention According to the multi-connection method, transmission characteristics are deteriorated at the connection point, and a large amount of switching work is required to accommodate the core. Therefore, the connection of the wiring system equipment core 1 to the core 1 at the feeder point (hereinafter referred to as non-multi connection) is realized, and furthermore, the connection using the FD cabinet that can accommodate the core without the need for new connection work. The promotion of the introduction of multi-connection methods is urgent.

However, the current FD cabinet has physical and aesthetic problems as described above, and promotion of its introduction has not been proceeding as expected.

The present invention has been made in view of the above circumstances, and provides a connection terminal box having a FD interface function and a connection terminal box accommodating type core distribution device (hereinafter, referred to as an FD interface device) which can be installed regardless of an installation environment. .

Means for Solving the ProblemsThe present invention fixes a cable fixing bracket to the inner surface of a box body near both side plates of a concave connection terminal box body having side plates having holes for inserting cables on both sides, and inside the box body. A connection terminal box for storing a connection terminal box accommodation type core distribution device,
The connection terminal box-housing type core distribution device is configured such that a receptacle resilient gripping rod support end plate is fixed near both ends of a rod-shaped connection terminal box reinforcing plate at the center thereof, and at both ends of the both ends of the female receptacle gripping rod support end plate. A book-box-shaped receptacle that can be configured so that a rod-shaped receptacle gripping rod extending between the receptacle gripping rod support end plates can be detachably mounted in parallel and that can accommodate a plurality of multi-paired connectors having a detachable hole in the receptacle gripping rod. Is configured by inserting a plurality of
By fixing both ends of the connection terminal box reinforcing plate to the cable fixing bracket, the connection terminal box accommodating type core distribution device is housed in the box body, and a multi-pair connector capable of instantaneously switching connection to the receptacle. And a connection terminal box having a lid, wherein the rescue pull is provided with a plurality of concave step plates to form a main box-shaped rescue pull main body, and a plate of the step plate forming a connector accommodating portion. On the lower surface, projections to be accommodated in the attachment / detachment holes of a plurality of multi-pair connectors are provided on both the front and rear sides of the insertion opening of the connector accommodating portion, and insertion of a receptacle gripping rod into the open end plate on the upper side plate of the receptacle body. Holes are provided respectively.

The connection terminal box of the present invention is not restricted by the installation environment of the feeder point, the connection terminal box having the FD interface function can be arranged by the above-described configuration, and matching with the core number reference book is achieved.
Confirmation of the core number becomes easy.

Since the FD interface device of the present invention is configured as described above, the multi-connector can be housed when housed in the connection terminal box. In addition, since the receptacle rod can be easily removed and the receptacle can be moved around the receptacle rod, the efficiency of work, maintenance, and inspection on the stored multi-pair connector can be improved.

At the feed point, since the FD interface device of the present invention can be easily accommodated in the connection terminal box, the FD interface function can be provided without being caught by the installation environment.

FIG. 1 is a perspective view of an FD interface device of the present invention, FIG. 2 is a perspective view of a connecting terminal box of the present invention in which a cable fixing bracket is fixed to a box main body, and FIG. 3 is a box main body of a connecting terminal box. 4 is a perspective view of the receptacle of the present invention, FIG. 4 (a) is a front view, FIG. 4 (b) is a side view, and FIG. 5 is a perspective view of the connector housing of the receptacle of the present invention. Fig. 6, Fig. 6 is a perspective view of a housing for connecting an overhead connection to a single receptacle, Fig. 7 is a receptacle gripper of the present invention, (a) is a front view, (b) is a plan view, (c). FIG. 8 (a) is a side view, FIG. 8 (a) is a front view of a joint portion between the receptacle gripping rod support end plate and the connection terminal box reinforcing plate of the receptacle gripper of the present invention, and FIG. FIG. 9 is a front view of the re-secure grip bar of the present invention,
(A) is a front view, (b) is a plan view, and (c) is a side view.

Before explaining the configuration of the connection terminal box of the present invention, the FD of the present invention
The configuration of the interface device will be described.

The FD interface device according to the present invention is constructed by inserting ten receptacles of FIG. 4 into two receptacle rods 23 of the receptacle gripper of FIG. 7 respectively.

Next, each element constituting the FD interface device of the present invention will be described.

As shown in FIG. 6, the receptacle 10 accommodates the multi-connector 30 in the accommodating portion 10A. The one shown in the figure has a ten-stage book-box structure.

The number of 10 is such that the number of pairs of connection cores accommodated in a single receptacle is 10 corresponding to 100 pairs of management units in a wire number management book for overhead wiring. This number is not limited to this number.

As shown in FIG. 5, the connector accommodating portion 10A of the receptacle 10 is provided with a connector gripping projection (hereinafter simply referred to as a projection) 11 on the lower surface of a step board 10B constituting each accommodation portion 10A, and an imaginary connection connector. When this (hereinafter referred to as "connector") is stored, the projection 11 fits into the connector attaching / detaching hole 31 of the connector 30 as shown in FIG. 6, so that the connector 30 is fixed with an appropriate gripping force.

Since the connector 30 to be stored has a connected shape and a non-connected shape on only one side, the protrusions 11 are provided on both sides (front and rear sides) of the insertion slot so that both shapes can be fixed.
Is provided.

An insertion hole 12 for a receptacle gripping rod is provided in the open end plate at the top of the side plate of the body of the receptacle 10.

The connector 30 is connected as shown in the middle part of FIG.

As shown in FIG. 7, the receptacle gripper P includes a connecting terminal box reinforcing plate 21, a gripping rod support end plate 22, and a receptacle gripping rod 23.
It consists of.

As shown in FIG. 8, the connection terminal box reinforcing plate 21 is inserted into the groove 22A, and the gripping rod supporting end plate 22 is supported by the gripping rod supporting end plate 22 so that the holding rod 23 can be easily mounted and removed. A grasping rod support hole 24 is formed in the lower part of the introduction groove 22B so as not to come off easily.

As shown in FIG. 9, the receptacle rod 23 is
The cross-section as can be seen from the figures (a), (b) and (c), where a is easy to attach and detach the receptacle rod 23 in correspondence with the gripping rod support hole 24 of the gripping rod support end plate 22 and does not come off. It has a rectangular structure.

 The center of the receptacle gripping bar 23 is formed in a circular shape.

Assembling of the FD interface device 20 of the present invention is performed by passing the receptacle gripping rod 23 through the receptacle hole 12 for the receptacle gripping rod of the receptacle, and supporting the gripped portion 23a of the receptacle gripping rod 23 by the gripping rod support end plate 22. Complete.
In addition, the connection terminal box reinforcing plate 21 of the completed FD interface device 20 is fixed with the cable fixing bracket 1C (described later) of the connection terminal box, and the connection terminal box having the FD interface function is completed by closing the cover. . At this time, the five receptacle rods 10 are gripped by one receptacle gripping rod 23, and the two receptacle gripping rods 23 are gripped by the receptacle gripping rod support end plate 22. An FD interface device that can store the connector 30 obtained.

The maximum number of storage pairs is 1000 pairs, the maximum number of branches of the lifting cable is 3 branches, the maximum number of laying pairs in the overhead wiring hole for one branch is 600 pairs, and the flexibility of the core wire is possible for all 2 branches So that for other branches
It is determined from the fact that there are 200 pairs (400 total) of flexible lines (see FIG. 1).

Since the completed FD interface device can perform a circular movement about the receptacle rod 23 as shown in FIG. 10, the working, maintenance, and inspection of the receptacle and the connector are convenient, and When the extra long core is accommodated in the FD cabinet, the receptacle itself can move according to the accommodation state of the core, and it has two features that the core can be efficiently accommodated.

When using the FD interface device of the present invention, a predetermined number of core wires can be easily connected to the interface function points without any instantaneous breaks in many pairs in order to match with other aerial connection points. can do.

A connector (multi-pair connector) as shown in Japanese Utility Model Application No. 62-23763 is used.

The FD interface device of the present invention is as shown in FIG. 3 by being housed in the box body of the connection terminal box of FIG. 2, and the connection terminal box of the present invention connects the FD interface device of the above configuration. The terminal box is fixed at the connection terminal box reinforcing plate fixing portion of the cable fixing bracket in the box main body 1 and covered with the lid 50.

The configuration of the box body 1 will be described.

The bottom plate 1-1 has a rectangular shape, and the two side plates 1A are connected to the side portions of the left and right bottom plates 1-1 by a suitable connecting means to make the whole concave.

The side plate body 1A is a plate-like body, the upper part is configured in an arc shape, and the nozzle part 1E for the present cable and two branch and tap cable nozzle parts 1F are integrally formed on the outer surface of the side plate body 1A, Further, a frame-shaped reinforcing portion 1B protruding to the peripheral portion for reinforcing the side plate 1A is integrally formed on the inner side.

Nozzle for cable on bottom plate 1-1 inside side plate 1A
The cable fixing bracket 1C for holding and holding the cables inserted into 1E and 1F is fixed.

The upper portion of the cable fixing bracket 1C is fixed to the bottom plate 1-1 by an L-shaped fixing portion in which an approximately circular holding portion is formed at an intermediate portion of an approximately semi-arc-shaped holding portion and an L-shaped fixing portion is integrally formed at a lower portion. The cable fixing fitting 1C has an approximately semi-circular holding portion at the upper portion and an approximately circular holding portion at the lower portion.

The fixing bracket 1D is connected to the distal end portion and the intermediate portion by bolts so as to hold the cable, thereby forming a cable holding member.

A connection terminal box reinforcing plate 21 is fixed to the upper end 1D of the cable fixing bracket.

FIG. 11 shows an example in which the connection terminal box at the feeder point of the present invention is applied to the maximum raised logarithm (1200 pairs).

FIG. 11 (a) is a specific example of a line point where a connection terminal box accommodating the FD interface device of the present invention is attached to each of a 1200-pair / 3-branch cable. FIG. FIG. 12 is a detailed diagram of the route A in FIG.

In FIG. 12, first, a core wire (maximum
The 600 pairs) are provided with the above-mentioned multi-pair connector, are arranged in units of 100 pairs, and are accommodated inside the designated receptacle.

Next, the above-mentioned multi-pair connector is also attached to the core wire from the feeder cable (up to 400 pairs), and then divided into units of 10 pairs and connected to the required wire numbers of the overhead connector. At this time, the surplus equipment (up to 200 pairs) on the wiring cable is an amount corresponding to fluctuations in demand on the wiring side. For this reason, the core wire on the feeder cable side has an extra length as far as the farthest receptacle from the insertion port of the connection terminal box, and when the actual demand fluctuates, switch the connector on the feeder cable side. Will correspond. Also, if you want to accommodate the core wire with multiple routes, connect the connector on the feeder cable side to the connector in the receptacle where the tap cable of the route you want to accommodate is stored and send it to the FD cabinet of the target route. I just need.

Effects of the Invention According to the connection terminal box and the FD interface device of the present invention, 1. It is possible to provide the FD issuer fence function without being caught by the installation environment of the feeder point, and it is possible to effectively use the cable core.

2. Since the structure of the receptacle is matched with the core number reference book, the core number can be easily confirmed and the efficiency of using the interface function can be greatly improved.

3. Work on the connector because the structure is such that the receptacle gripper can be easily removed and the receptacle can move in a circle around the receptacle gripper.
The efficiency of maintenance and inspection can be greatly improved.

4. The connector (multi-pair connector) shown in Japanese Utility Model Application No. 62-23763 is used for the interface function section, enabling instantaneous uninterrupted switching connection at the feeder point, greatly increasing the connection operation. The effect can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view of the FD interface device of the present invention, and FIG.
FIG. 3 is a perspective view of the box body of the connection terminal box of the present invention, FIG. 3 is a perspective view of the box body of the connection terminal box in which the FD interface device of the present invention is accommodated, and FIG. FIG. 5A is a front view, FIG. 5B is a right side view, FIG. 5 is a top view of a receptacle housing of a receptacle, FIG. FIG. 8 (a) is a front view, FIG. 8 (b) is a plan view, FIG. 8 (c) is a right side view, and FIG. 8 (a) is a holding rod supporting end plate and connection terminal box reinforcement of the holding receptacle of the holding receptacle holder. FIG. 9 (b) is a front view of a receptacle holding rod supporting end plate, FIG. 9 is a front view of a receptacle holding rod, FIG. 9 (a) is a front view, FIG. 9 (b) is a plan view, FIG. The figure shows the right side view, and Fig. 10 shows the movable section of the receptacle in the sectional view of the FD interface. Illustration of the core wire receiving space changes, applications of FD interface device of FIG. 11 the present invention,
(A) Figure is a perspective view of the arrangement of the FD cabinet at the 1200-three-branch feeder point, (b) Figure is a detailed wiring diagram of the feeder point,
FIG. 12 shows an enlarged view of the route A in FIG. 1: Box body of connection terminal diagram, 1-1: Bottom plate, 10: Receptacle, 11: Projection part for connector grip, 12: Insertion hole for receptacle rod, 20: Connection terminal box accommodation type core distribution device, 21: Connection terminal box reinforcing plate, 22: Recessible gripping rod support end plate, 23: Recessible gripping rod, 30: Connector for aerial connection, 31: Connector detachable hole, 40: CCP cable core, 50: Connection terminal box lid

Claims (2)

(57) [Claims] 1. A cable fixing bracket is fixed to an inner surface of a box body near both side plates of a concave connection terminal box body having side plates having holes through which cables are inserted on both sides, and a connection terminal box accommodating core is provided in the box body. A connection terminal box for storing a line distribution device,
The connection terminal box-housing type core distribution device is configured such that a receptacle resilient gripping rod support end plate is fixed near both ends of a rod-shaped connection terminal box reinforcing plate at the center thereof, and at both ends of the both ends of the female receptacle gripping rod support end plate. A book-box-shaped receptacle that can be configured so that a rod-shaped receptacle gripping rod extending between the receptacle gripping rod support end plates can be detachably mounted in parallel and that can accommodate a plurality of multi-paired connectors having a detachable hole in the receptacle gripping rod. Is configured by inserting a plurality of
By fixing both ends of the connection terminal box reinforcing plate to the cable fixing bracket, the connection terminal box accommodating type core distribution device is housed in the box body, and a multi-pair connector capable of instantaneously switching connection to the receptacle. A connection terminal box that houses and covers it. 2. The receptacle according to claim 1, wherein a plurality of recessed step plates are provided to form a book box. 2. The receptacle according to claim 1, wherein projections to be accommodated in the attachment / detachment holes of a plurality of multi-pair connectors are provided on both sides, and insertion holes for a receptacle gripping rod are provided in an open end plate on an upper side plate of the receptacle. Wire distribution device with connection terminal box