JP4673722B2 - Indoor external communication transmission path - Google Patents

Description

  The present invention relates to an external communication transmission path provided in a building.

  In recent years, with the spread of the Internet and the like, a high-speed and large-capacity communication transmission path is becoming an essential requirement. In addition, the necessity is increasing in small and medium-sized office buildings or apartment houses, which conventionally did not require such a large-capacity communication transmission line. These communication transmission paths are often configured by laying optical cables for the purpose of using a LAN (Local Area Network) or the like.

  FIG. 4 shows a communication transmission line network using optical cables. Each backbone station 107 is connected by the backbone optical cable 101 to form a backbone optical network. Each backbone station 107 is provided with a backbone distributor 108 and branches the backbone optical cable 101 to each trunk optical cable 102. Each trunk optical cable 102 branches the branch optical cable 103 toward each building 114 at a branching point 109. Each branch line optical cable 103 is connected to the main distribution board 110 of each building 114. The main distribution board 110 is connected to a distributor 111 on each floor of the building by an indoor optical cable 104, and is connected to each terminal 112 by an individual optical cable 106 from each distributor. When connecting to each individual house 117, the optical fiber is connected from the branch point 109 of the trunk optical cable 102 to the connector 113 by the optical drop cable 116, and from here to the individual terminal 112 by the indoor individual optical cable 106.

  The backbone optical cable 101, the trunk optical cable 102, the branch optical cable 103, and the indoor optical cable 104 are a plurality of large-capacity or medium- and small-capacity lines. Therefore, as shown in FIG. A tape slot type cable 120 is used in which the wire 121 is accommodated in the slot 126 of the grooved spacer 122 and the outer surface is covered with a holding roll 124 and a polyethylene sheath 125. In addition, as the individual optical cable 106, an indoor cable 130 in which the circumference of one tape core 121 as shown in FIG. 5B is covered with a polyethylene sheath 125 is used. In order to protect a very fragile optical fiber made of quartz glass, the tape core 121 is formed by arranging a plurality of cores covered with an ultraviolet curable resin and further covered with an ultraviolet curable resin. Further, a tension member 123 made of steel wire is embedded in both the tape slot type cable and the indoor cable in order to prevent the optical fiber from being damaged due to tension when the optical cable is laid.

  Due to the characteristics of the optical fiber, if it bends, the propagation characteristics deteriorate or breakage occurs. Therefore, a minimum bending radius is defined for each cable. A tape slot type cable having a large capacity of several hundred cores used for the trunk optical cable 102 has a minimum bending radius of 300 to 600 mm, a small and medium capacity having several tens of cores used for the branch optical cable 103 and the indoor optical cable 104. The minimum bending radius of the tape slot type cable is 100 to 200 mm, and the single-core indoor cable used for the individual optical cable 106 is about 15 to 30 mm. For this reason, the indoor optical cable 104 is installed on a dedicated straight vertical wiring path, and the individual optical cable 106 from the distributor is installed in a bent pipe to each piece.

  Old buildings, small and medium-sized office buildings, or apartment buildings are not designed to install high-speed, large-capacity communication transmission lines using optical fiber cables. There is not enough space to install a path, and a situation has arisen where a high-speed and large-capacity communication transmission path using an optical fiber cable cannot be laid. When there are several bent wiring paths, it is conceivable to arrange the distributor 111 near the main distribution board 110 and to lay the individual optical cable 106 from there to each terminal, but in the case of a small number of cables, Even if it is possible, it is difficult to install such a large-scale individual optical cable in buildings and apartment buildings with hundreds of terminals, and it is practically a high-speed and large-capacity communication transmission line using optical fiber cables. It was very difficult to lay.

  Therefore, when an optical cable is laid in such a building, a hole is made in the floor of each floor of the building, and a vertical wiring path for laying the optical cable in the vertical direction of the building is provided. For that purpose, the floor of each floor is first inspected by non-destructive inspection with X-rays, and the position of electrical cables and pipes embedded in the floor is preliminarily investigated, and holes are drilled in the floor avoiding those places. Then, a method of installing a straight vertical wiring pipe in the hole and laying an optical cable in the pipe is performed.

  However, drilling holes on the floors of each floor of the building has a problem that the construction period and costs increase due to the need for pre-investigation by non-destructive inspection and large-scale construction due to the thick floor. . In addition, since it is necessary to install the optical fiber cable so as not to apply tension to the optical fiber, it is necessary to provide a lot of support in the vertical wiring path, resulting in an increase in work period and cost.

  Therefore, the object of the present invention is to reduce the number of supports of the vertical wiring path without carrying out large-scale construction such as drilling a floor in the building, and to install optical cables in the building occupants in a short time and at low cost. Another object of the present invention is to provide a building external communication transmission path that can be laid.

In the building external communication transmission line of the present invention, the external communication optical cable is connected to a distributor provided on each floor, and the main distribution board for branching the external communication optical cable and the hoistway wall on each floor An attachment case attached in the hoistway wall so as to penetrate, an external communication optical cable connection connector accommodated in the attachment case , and a distribution for connecting the external communication optical cable connection connector and the distributor on the same floor A connector connecting optical cable, an external communication crossing optical cable arranged in a hoistway for connecting the external communication optical cable connecting connectors in groups, and an external communication optical cable connecting connector of each group and the main And a building exterior communication optical cable arranged in the hoistway for connecting the wiring board. Here, the plurality of groups of external communication crossing optical cables may be arranged in a plurality of hoistways.

In the building external communication transmission path of the present invention, the mounting case may be mounted in the hoistway wall so as to penetrate the hoistway wall on the back of the calling operation panel provided on each floor, mounting case may be mounted in the hoistway wall so as to penetrate the hoistway wall in contact with the ceiling of each floor, the mounting case is to pass through the hoistway wall in contact with the floor of the floor the may be mounted within the hoistway wall so, the mounting case can be mounted in the hoistway wall so as to penetrate the hoistway wall in contact with the floor of the raised floor portion.

  In the building external communication transmission line according to the present invention, since the external communication cable is arranged in the hoistway of the elevator of the building, it is easy to lay the optical cable without the need for preliminary investigation or drilling work by nondestructive inspection of the floor. It is possible to construct an external communication transmission path for a resident in the building in a short time and with low cost construction.

  Embodiments according to the present invention will be described below in detail with reference to the drawings. 1 to 3 are explanatory diagrams of a building external communication transmission line according to the first to third embodiments of the present invention.

  FIG. 1 shows a hoistway 30 of an elevator 2 installed in a building 1, and an elevator control cable arrangement and an indoor external communication transmission path arranged therein. The building 1 has a plurality of floors, and an elevator 2 is installed to connect the plurality of floors. The elevator is installed so as to move up and down in a hoistway 30 provided in the building, and a driving mechanism such as a hoisting machine for driving the elevator and an elevator control panel are installed in the uppermost machine room of the hoistway 30. is set up. Each floor of the building is provided with a call operation panel 22 on which push buttons and the like for calling the elevator are arranged.

  The external communication cable 3 branched from the external trunk communication path is drawn into the building 1, and the main distribution board 10 connected to the main distribution board 10 in the building connects the external communication cable 3 to a plurality of indoor external communication cables. Branches to 4. On each floor of the building, a distributor 11 that distributes cables to each individual is installed. The main distribution board 10 and the distributor 11 include an indoor external communication cable 4 with a main distribution board side indoor / outdoor communication cable connection connector 9b attached at one end, and a distributor side external building / internal communication cable connection connector at one end. They are connected by a distributor connecting cable 7 to which 9a is attached. The indoor external communication cable connection connector 9 to which the main wiring board side indoor external communication cable connection connector 9b and the distributor external external communication cable connection connector 9a are attached is fixed to the hoistway wall 32 by an attachment case 35. ing. Further, between the distributors 11, the distributor connection cable 7 having a distributor-side external communication cable connection connector 8 a attached at one end and the external communication transition cable 5 having a cable-side external communication cable connection connector 8 b attached to one end. Are connected in the hoistway 30.

  As shown in FIG. 1, the external communication crossover cable 5 sequentially connects the distributors 11 installed on a plurality of floors to form one group, and each distributor 11 belonging to the group and the main wiring board 10 are connected. Is connected. In FIG. 1, distributors 11 on each floor from the first floor to the third floor are sequentially connected by an external communication crossover cable 5 to form a first group, and distributors 11 on each floor from the fourth floor to the sixth floor are also externally communicated. The second group is formed by being sequentially connected by the crossover cable 5. Of the first and second groups of distributors 11, the first floor distributor 11 and the fourth floor distributor 11 are connected to the main wiring by the building external communication cable 4 via the building external communication cable connector 9. It is connected to the panel 10. Thus, the distributor 11 and the main wiring board 10 are connected to each group formed by the external communication connecting cable 5. Further, the distributor 11 on each floor and each terminal 12 are connected by an individual connection cable 13.

  The building external communication cable 4 and the external communication crossover cable 5 are arranged in the hoistway so that the minimum bending radius is 100 to 200 mm because a medium and small capacity tape slot type cable having several tens of cores is used. . The distributor connecting cable 7 is also arranged in the vicinity of the calling operation panel 22 using a similar tape slot type cable. On the other hand, since the individual connection cable 13 is an indoor cable having a minimum bending radius of 15 to 30 mm, the individual connection cable 13 is freely arranged from the distributor 11 into a bent pipe such as an existing telephone line pipe.

  According to the first embodiment of the present invention, since a small and medium capacity tape slot type cable having several tens of cores with a minimum bending radius of 100 to 200 mm can be arranged without making a hole in the floor, non-destructive inspection of the floor, etc. This eliminates the need for pre-investigation and drilling work, making it easy to lay optical cables, and it is possible to lay an external communication transmission path in a short time with low-cost construction for residents in the building. In addition, since the length of the connecting cable connecting each floor is about the height of each floor, there is no special support because the cable weight between the connectors is light and there is no damage to the optical fiber without installing a separate cable support. As a result, the cable can be laid, and the work on site can be reduced and the work can be done in a short time. Further, since the distributors 11 are grouped into a plurality of groups by the external communication connecting cable 5, the distributors 11 can be arranged for each necessary area. For example, when the first group in FIG. 1 is one company and the second group is another company, or because of the structure of the building, the first group has an office only on the east side. In the case of group 2 where offices are only installed on the west side, each group can arrange the internal communication cable 4 and the external communication cable 5 so that the cable length is optimal. The effect is that the total cable length can be shortened.

  A second embodiment of the present invention will be described with reference to FIG. Components similar to those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

In the second embodiment, the first group and the second group described in the first embodiment are arranged in separate hoistways 30. By arranging in this way, there is an effect that the wiring can be further distributed than the effect of the first embodiment. In particular, when the first group and the second group are located apart from each other in the building, it is possible to select the hoistway that provides the shortest wiring and arrange the external communication transmission line in the building. As a result, the wiring can be made more efficient.

  In the third embodiment, an external communication cable connection connector is provided on the hoistway wall in contact with the ceiling of each floor or on the ceiling of each floor, or on the hoistway wall in contact with the floor of each floor or on the hoistway wall in contact with the raised floor. This constitutes a building external communication transmission path.

  In the third embodiment, the main wiring board 10 and the distributor 11 from the fourth floor to the sixth floor in FIG. 3 are fixed to the hoistway wall 32 in contact with the ceiling back 52 by the mounting case 35. The connection connector 9, the external communication cable connection connector 8, the building external communication cable 4, the distributor connection cable 7, and the external communication crossover cable 5 are connected. 3 is fixed to the hoistway wall in contact with the floor 50 or the hoistway wall 32 in contact with the raised floor by the mounting case 35. They are connected by an indoor / outdoor communication cable connection connector 9, an external communication cable connection connector 8, an indoor / outdoor communication cable 4, a distributor connection cable 7, and an external communication transition cable 5. Then, similarly to the first embodiment, they are grouped into a first group and a second group.

  Thus, when wiring on the back of the ceiling, in addition to the effects of the first embodiment, the space behind the ceiling, which is an empty space, can be used as the wiring space for the distributor connection cable 7 and the individual connection cable 13. In addition to facilitating the aesthetic effect of making the distributor 11 and wiring inconspicuous, these devices can be installed in places that are out of the reach of third parties. There is an effect that can be prevented. Further, when wiring through the hoistway wall in contact with the floor, the distributor connecting cable 7 is an under carpet wiring disposed under the carpet laid on the floor, so that the wiring to the distributor 11 is inconspicuous. Since the wiring can be processed on the floor, the workability of the installation work is excellent and the work becomes easy. Further, when wiring is performed through the hoistway wall in contact with the raised floor, the distributor connecting cable 7 can be passed through the raised floor and the wiring can be processed on the floor. The effect is excellent, and the construction becomes easy. The same effect as described above can be obtained when connected to the connection box 55 on the floor.

  The present invention is not limited to a hoistway for an elevator such as an elevator, but can also be applied to a case where an external communication transmission path is laid on a hoistway for a small baggage or an elevator for a car. Further, the main wiring board 10 is not limited to being installed in the lower part of the building, and may be installed anywhere such as in a machine room in the upper part of the building.

It is explanatory drawing of the building external communication transmission line of the 1st Embodiment of this invention. It is explanatory drawing of the building external communication transmission line of the 2nd Embodiment of this invention. It is explanatory drawing of the building external communication transmission line of the 3rd Embodiment of this invention. It is a conceptual diagram of the communication transmission line network by an optical cable. It is sectional drawing of an optical fiber cable.

Explanation of symbols

  1 building, 2 elevator, 3 external communication cable, 4 building external communication cable, 5 external communication crossover cable, 7 distributor connection cable, 8 external communication cable connection connector, 8a distributor side external communication cable connection connector, 8b crossover cable Side external communication cable connection connector, 9 building external communication cable connection connector, 9a distributor side external building external communication cable connection connector, 9b main wiring board side building external communication cable connection connector, 10 main wiring board, 11 distributor , 12 terminal, 13 individual connection cable, 22 call operation panel, 30 hoistway, 32 hoistway wall, 35 mounting case, 103 branch line optical cable, 104 indoor optical cable, 106 individual optical cable, 107 core station, 108 core distributor, 110 Main wiring board, 111 distributor, 1 2 terminal, 113 connector, 114 buildings, 120 tape slot type cable, 121 ribbon, 122 grooved spacer, 123 tension member, 124 pressing winding, 125 polyethylene sheath, 126 slots, 130 indoor cables.

Claims (6)

In the building external communication transmission line that connects the external communication optical cable to the distributor provided on each floor,
A main distribution board for branching external communication optical cables;
A mounting case mounted in the hoistway wall so as to penetrate the hoistway wall of each floor ;
An external communication optical cable connection connector housed in the mounting case ;
A distributor connecting optical cable for connecting the external communication optical cable connecting connector and the distributor on the same floor;
An external communication crossing optical cable arranged in a hoistway to connect the external communication optical cable connection connectors in groups into a plurality of groups;
In-building external communication optical cable arranged in a hoistway to connect the external communication optical cable connection connector of each group and the main wiring board,
Intra-building external communication transmission line including. A plurality of groups of external communication crossover optical cables are arranged in a plurality of hoistways;
The building internal / external communication transmission path according to claim 1.   The exterior of a building according to claim 1 or 2, wherein the mounting case is mounted in the hoistway wall so as to penetrate the hoistway wall on the back of a call operation panel provided on each floor. Communication transmission line.   The building external communication transmission path according to claim 1 or 2, wherein the mounting case is mounted in the hoistway wall so as to penetrate the hoistway wall in contact with the ceiling of each floor.   The building external communication transmission path according to claim 1 or 2, wherein the mounting case is mounted in the hoistway wall so as to pass through the hoistway wall in contact with the floor of each floor.   The building external communication transmission path according to claim 1 or 2, wherein the mounting case is mounted in the hoistway wall so as to penetrate the hoistway wall in contact with the raised floor portion of each floor. .

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