Optical wiring rack

Abstract

To provide an optical wiring rack that is more appropriate than the prior art as a mounting destination of a plurality of units to which different kinds of optical wiring from each other are connected.SOLUTION: An optical wiring rack is an optical wiring rack that comprises: a housing; and unit fitting parts which are provided inside the housing and on which a plurality of units having adapters on a front face can be mounted. On the unit fitting parts, first units being the units to which optical fibers protected by tubes are connected and second units being the units to which first cables with optical connectors having been connected thereto are connected can be mounted. The optical wiring rack further includes first positioning parts performing positioning of the optical fibers and a second positioning part performing positioning of the first cables. The second positioning part is positioned ahead of the first positioning parts.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present disclosure relates to an optical wiring rack.

[0002] Conventionally, an optical wiring rack to which a plurality of units having adapters can be attached is known. For example, Patent Document 1 discloses an optical wiring rack including a rack portion on which a plurality of termination units are placed, a first optical wiring accommodating portion that accommodates the excess lengths of a plurality of first optical wirings connected to each of the plurality of termination units, and a second optical wiring accommodating portion that accommodates the excess length of a second optical wiring connected to any one of the plurality of termination units.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, when the plurality of units attached to the optical wiring rack are to be connected to different types of optical wirings, there is a possibility that the less rigid type of optical wiring may be damaged because the plurality of types of optical wirings are wired in the same housing.

[0005] An object of the present disclosure is to provide a more suitable optical wiring rack as an attachment destination for a plurality of units to which different types of optical wirings are connected.

Means for Solving the Problems

[0006] The optical wiring rack of the present disclosure includes a housing, a unit attachment portion provided inside the housing and capable of attaching a plurality of units having adapters on the front surface, and is an optical wiring rack comprising The unit mounting portion is capable of mounting a first unit, which is the unit to which an optical fiber protected by a tube is connected, and a second unit, which is the unit to which a first cable to which an optical connector is connected is connected. The optical wiring rack further includes a first positioning portion for positioning the optical fiber, and a second positioning portion for positioning the first cable, and is provided with The second positioning portion is located in front of the first positioning portion, the optical wiring rack.

Advantages of the Invention

[0007] According to the present disclosure, it is possible to provide a more appropriate optical wiring rack as a mounting destination for a plurality of units to which different types of optical wirings are connected.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Embodiments for Carrying Out the Invention

[0009] <Description of Embodiments of the Present Disclosure> First, the embodiments of the present disclosure will be listed and described. The optical wiring rack according to the embodiment of the present disclosure is (1) a housing, and An optical wiring rack comprising: a unit mounting portion provided inside the housing and capable of mounting a plurality of units having an adapter on the front surface. The unit mounting portion is capable of mounting a first unit, which is the unit to which an optical fiber protected by a tube is connected, and a second unit, which is the unit to which a first cable to which an optical connector is connected is connected. The optical wiring rack further comprises: a first positioning portion for positioning the optical fiber; a second positioning portion for positioning the first cable. The second positioning portion is located in front of the first positioning portion.

[0010] With such a configuration, in the housing, the optical fiber and the first cable can be wired in separate regions, so that damage to the optical fiber due to contact between the optical fiber and the first cable can be prevented.

[0011] Also, with the above configuration, the optical fiber pre-wired in a factory or the like is wired in a region away from the adapter, and the first cable wired by the user is wired in a region close to the adapter. Therefore, when the user adds a first cable, it is possible to prevent the user's hand from contacting the optical fiber, and the workability can be improved.

[0012] (2) In the optical wiring rack of (1) above, the first positioning portion is attached to the back surface of the housing, and the second positioning portion may be attached to the side surface of the housing.

[0013] In this way, with the configuration in which the first positioning portion and the second positioning portion are attached to different surfaces of the housing, contact between the optical fiber and the first cable can be more reliably prevented. Also, when the user adds a first cable, the user only needs to wire the first cable along the side surface of the housing, so the wiring work is easy to perform.

[0014] (3) In the optical wiring rack of the above (1) or (2), the second positioning portion includes a plurality of plate portions extending along the vertical direction, the plurality of plate portions are attached at different positions in the vertical direction, the plate portion below the upper plate portion may be attached further rearward.

[0015] With such a configuration, it is possible to prompt the user to wire the first cable closer to the bottom surface of the housing at the connection destination in a region closer to the back surface of the housing, and the workability when the user adds the first cable can be improved.

[0016] (4) In any of the optical wiring racks of the above (1) to (3), the second positioning portion may include a fixing portion surrounding the peripheries of the plurality of first cables.

[0017] With such a configuration, the positions of the plurality of first cables can be collectively fixed by the fixing portion, and further, the wiring of each first cable in the vertical direction can be assisted by the plate portion. Therefore, even when the wiring distance of the first cable is long, the first cable can be fixed more reliably.

[0018] (5) In any of the optical wiring racks of the above (1) to (4), the internal region of the housing is a primary region which is a wiring region of the optical fiber and the first cable wired to the unit, and a secondary region which is a wiring region of the second cable connected to the adapter and wired from the adapter to the outside of the housing, and includes the primary region may be wider than the secondary region.

[0019] In this way, a configuration in which a large primary area where both the optical fiber and the first cable are wired is secured can more reliably prevent contact between the optical fiber and the first cable.

[0020] <Details of Embodiments of the Present Disclosure> A specific example of the optical wiring rack of the present disclosure will be described below with reference to the drawings. It should be noted that the present invention is not limited to these examples, but is defined by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims.

[0021] In the following description, terms such as "front", "rear", "left", "right", "upper", and "lower" may be used, but these directions are relative directions set for convenience of explanation. In each figure, "F" is "front", "B" is "rear", "L" is "left", "R" is "right", "U" is "upper", and "D" is "lower".

[0022] [Overall Configuration] FIG. 1 is a perspective view showing the configuration of an optical wiring rack 100 according to an embodiment of the present disclosure. The optical wiring rack 100 includes a rectangular parallelepiped housing 11 and a plurality of unit mounting portions 12 provided inside the housing 11. The housing 11 includes an upper surface 21, a bottom surface 22, a right side surface 23, a left side surface 24, a front surface 25, and a rear surface 26, and two doors 27, 28 are provided on the front surface 25.

[0023] The unit mounting portion 12 is a member extending in the vertical direction and is attached to the rear surface 26 of the housing 11. In FIG. 1, as an example, two unit mounting portions 12 are shown. A plurality of mounting holes 29 arranged along the vertical direction are formed in each unit mounting portion 12.

[0024] FIG. 2 is a perspective view showing a state in which an optical unit 31 and a slack processing unit 32 are attached inside the housing 11 shown in FIG. 1. FIG. 3 is a partially enlarged view showing a state in which the optical wiring rack 100 shown in FIG. 2 is viewed from the front.

[0025] Referring to FIGS. 2 and 3, a plurality of optical units 31 and a plurality of excess length processing units 32 can be attached to the unit attachment portion 12 (see FIG. 3). The optical unit 31 includes an adapter panel 33 provided on the front surface. The adapter panel 33 has a plurality of adapters 34 on each of the front and rear surfaces to which optical connectors can be connected.

[0026] More specifically, as shown in FIG. 3, for example, at both ends of the optical unit 31 in a direction orthogonal to the right side surface 23 and the left side surface 24 (hereinafter referred to as the "left - right direction"), two insertion holes 36 into which a connecting member 35 such as a screw can be inserted are formed. When the user attaches the optical unit 31 to the housing 11, out of the plurality of mounting holes 29 in the unit attachment portion 12 shown in FIG. 1, four mounting holes 29 corresponding to the attachment position of the optical unit 31 are selected.

[0027] Then, with the four insertion holes 36 of the optical unit 31 and the four selected mounting holes 29 aligned respectively, the user passes a connecting member 35 through each pair of the insertion hole 36 and the mounting hole 29. By performing such an operation, the optical unit 31 can be attached to the unit attachment portion 12.

[0028] Similarly, for the excess length processing unit 32, for example, two insertion holes 38 into which a connecting member 37 such as a screw can be inserted are formed at both ends of the excess length processing unit 32 in the left - right direction. When the user attaches the excess length processing unit 32 to the housing 11, out of the plurality of mounting holes 29 in the unit attachment portion 12 shown in FIG. 1, four mounting holes 29 corresponding to the attachment position of the excess length processing unit 32 are selected.

[0029] Then, with the four insertion holes 38 of the excess length processing unit 32 and the four selected mounting holes 29 aligned respectively, the user passes a connecting member 37 through each pair of the insertion hole 38 and the mounting hole 29. By performing such an operation, the excess length processing unit 32 can be attached to the unit attachment portion 12.

[0030] The user can attach multiple types of optical units 31 to the unit attachment portion 12. The multiple types of optical units 31 include a first optical unit 31A and a second optical unit 31B. The first optical unit 31A has as its connection target an optical fiber 51A (see FIG. 4 described later) in which several to several tens of optical fiber cores are bundled and protected by a tube. The second optical unit 31B has as its connection target a first cable 51B (see FIG. 4 described later), which is a multi-core optical fiber cable in which optical cords 51C each having an optical connector attached to its tip are assembled. Hereinafter, each of the optical fiber 51A and the first cable 51B is also referred to as "optical wiring 51". The outer sheath of the first cable 51B is formed of a relatively hard resin. The tube of the optical fiber 51A is formed of a resin softer than the outer sheath of the first cable 51B.

[0031] In FIG. 2, as an example, four first optical units 31A, six second optical units 31B, and four excess length processing units 32 are attached to the unit attachment portion 12. The number and types of optical units 31 attached to the unit attachment portion 12, as well as the number of excess length processing units 32, can be arbitrarily determined by the user.

[0032] FIG. 4 is a front view showing a state in which the optical wiring 51 is connected to each optical unit 31 shown in FIG. 2. As shown in FIG. 4, on the upper surface 21 of the housing 11, an inlet 41 for the optical wiring 51 wired inside the optical unit 31 and an outlet 42 for a second cable 52 connected to an adapter 34 on the front surface of the optical unit 31 are formed. Specifically, the inlet 41 is formed in the right region of the upper surface 21, and the outlet 42 is formed in the left region of the upper surface 21.

[0033] The plurality of optical wirings 51 enter from the outside to the inside of the housing 11 via the inlet 41 and are wired to the optical unit 31 that is the connection target. Hereinafter, the details of the wiring of each of the optical fiber 51A and the first cable 51B will be described.

[0034] [Wiring of optical fiber] As shown in FIG. 4, the optical wiring rack 100 includes a first positioning portion 61 that positions the optical fiber 51A inside the housing 11. The first positioning portion 61 is attached in plurality along the vertical direction inside the rear surface 26 of the housing 11. For example, the first positioning portion 61 has a sponge-like member inside an annular member made of resin and capable of opening and closing. Then, the first positioning portion 61 sandwiches the optical fiber 51A having a flexible tube with the sponge-like member, and fixes the position of the optical fiber 51A without firmly pressing it.

[0035] The optical fiber 51A passes through the inside of one or a plurality of first positioning portions 61, and is wired from the right side surface of the first optical unit 31A to be connected to the inside of the first optical unit 31A. Then, inside the first optical unit 31A, the optical fiber 51A is fusion-connected to an optical wiring (not shown) with an optical connector attached to the tip. The optical connector of the optical wiring is pre-connected to the adapter 34 on the rear surface of the adapter panel 33. Hereinafter, among the regions inside the housing 11, the region where the optical fiber 51A is wired to the optical unit 31 is referred to as a "primary region Ra".

[0036] [Wiring of the First Cable] FIG. 5 is a cross-sectional view of the V-V line cross-section shown in FIG. 4 as viewed from above. In FIG. 5, the optical fiber 51A and the doors 27 and 28 are omitted. Referring to FIG. 5, the optical wiring rack 100 includes a second positioning portion 62 that positions the first cable 51B inside the housing 11. The second positioning portion 62 includes a fixing portion 63 attached to the upper side of the right side surface 23 of the housing 11 and a plurality of plate portions 64 attached to the left side surface 24 of the housing 11, as shown in FIG. 2.

[0037] Referring to FIG. 5 again, the fixing portion 63 and the plurality of plate portions 64 are located in front of the first positioning portion 61. The fixing portion 63 is, for example, a rectangular frame-shaped member, and surrounds the plurality of first cables 51B in the vicinity of the introduction port 41.

[0038] As shown in FIG. 3, the plate portion 64 is a plate-shaped member extending along the vertical direction, and one or a plurality of protrusions 66 are formed at each of the upper end and the lower end. A binding band (not shown) is fixed so as to bundle the protrusion 66 and the first cable 51B. Further, as shown in FIG. 2, the plurality of plate portions 64 are attached at different positions in the vertical direction, and the lower plate portion 64 is attached rearward of the upper plate portion 64.

[0039] As shown in FIG. 4, the first cable 51B passes through the inside of the fixing portion 63, is positioned by one or a plurality of plate portions 64, and is wired from the right side surface of the second optical unit 31B to be connected into the second optical unit 31B. Then, the optical connector at the tip of the first cable 51B wired inside the second optical unit 31B is connected to the adapter 34 on the rear surface of the adapter panel 33 in the second optical unit 31B.

[0040] Thus, by providing the second positioning portion 62 including the fixing portion 63 and the plate portion 64, the positions of the plurality of first cables 51B can be collectively fixed by the fixing portion 63, and further, the wiring of each first cable 51B in the vertical direction can be assisted by the plate portion 64. Therefore, even when the wiring distance of the first cable 51B is long, the first cable 51B can be fixed more reliably. Since the first cable 51B has higher rigidity than the optical fiber 51A, it can be fixed relatively firmly to the fixing portion 63.

[0041] Further, since the lower plate portion 64 is attached rearward of the upper plate portion 64, it is possible to prompt the user to wire the first cable 51B closer to the second optical unit 31B to be connected in a region closer to the rear surface 26 of the housing 11. Therefore, the workability when the user adds the first cable 51B can be improved.

[0042] Also, as described above, the first positioning unit 61 for positioning the optical fiber 51A and the second positioning unit 62 for positioning the first cable 51B are provided separately. Thereby, in the housing 11, the optical fiber 51A and the first cable 51B can be wired in separate regions.

[0043] Here, if the optical fiber 51A and the first cable 51B are wired in the same region inside the housing 11, there is a possibility that the optical fiber 51A and the first cable 51B may come into contact. And when the optical fiber 51A and the first cable 51B come into contact, pressure may be applied to the optical fiber 51A, or the optical fiber 51A may bend, which may cause an increase in the transmission loss of the optical fiber 51A or damage such as disconnection.

[0044] On the other hand, in the optical wiring frame 100, as described above, since the optical fiber 51A and the first cable 51B can be wired in separate regions, it is possible to prevent an increase in the transmission loss of the optical fiber 51A and damage caused by the contact between the optical fiber 51A and the first cable 51B.

[0045] Also, since the second positioning unit 62 is located in front of the first positioning unit 61, the optical fiber 51A pre-wired in a factory or the like is wired to the rear of the housing 11, and the first cable 51B wired by the user is wired to the front of the housing 11. Therefore, when the user adds the first cable 51B, it is possible to prevent the user's hand from coming into contact with the optical fiber 51A, and the workability can be improved.

[0046] Furthermore, with the configuration in which the first positioning unit 61 and the second positioning unit 62 are attached to separate surfaces of the housing 11, the contact between the optical fiber 51A and the first cable 51B can be more reliably prevented. Also, since the second positioning unit 62 is attached to the right side surface 23 of the housing 11, when the user adds the first cable 51B, the user can simply wire the first cable 51B along the right side surface 23 of the housing 11, making the wiring work easier.

[0047] [Wiring of the cable connected to the front surface of the adapter panel] As shown in FIG. 4, a second cable 52 having an optical connector attached to its tip is connected to an adapter 34 on the front surface of the adapter panel 33 in the optical unit 31. The second cable 52 is wired from the front surface of the adapter panel 33 to the outside of the housing 11 via the lead-out port 42 of the housing 11.

[0048] More specifically, for example, a plurality of surface fasteners 65 are attached to the left side surface 24 of the housing 11. The surface fasteners 65 bundle a plurality of second cables 52 in the secondary region Rb from the adapter panel 33 to the lead-out port 42 of the housing 11.

[0049] Further, the slack processing unit 32 attached to the housing 11 has, for example, a cylindrical portion 39 extending from the rear to the front and a semi-cylindrical portion 40. The slack portion of the second cable 52 in the secondary region Rb is wound around at least one of the cylindrical portion 39 and the semi-cylindrical portion 40.

[0050] [Position of the unit mounting portion] As shown in FIG. 4, the center C1 in the left-right direction of the two unit mounting portions 12 is located on the left side, that is, on the secondary region Rb side, of the center C2 in the left-right direction of the housing 11. Thereby, a wide primary region Ra in which both the optical fiber 51A and the first cable 51B are wired can be secured among the regions inside the housing 11. For this reason, contact between the optical fiber 51A and the first cable 51B can be more reliably prevented.

[0051] As described above, the present disclosure has been described based on specific embodiments, but the present invention is not limited to these examples, and is shown by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims.

Explanation of reference numerals

[0052] 11 Housing 12 Unit mounting portion 21 Above 22 Bottom surface 23 Right side surface 24 Left side surface 25 Front surface 26 Rear surface 27, 28 Door 29 Mounting hole 31 Optical unit 31A First optical unit 31B Second optical unit 32 Excess length processing unit 33 Adapter panel 34 Adapter 35, 37 Connecting member 36, 38 Insertion hole 39 Cylindrical part 40 Semi-cylindrical part 41 Inlet 42 Outlet 51 Optical wiring 51A Optical fiber 51B First cable 51C Optical cord 52 Second cable 61 First positioning part 62 Second positioning part 63 Fixing part 64 Plate part 65 Surface fastener 66 Protrusion 100 Optical wiring rack C1 Center in the left - right direction of the two unit mounting parts C2 Center in the left - right direction of the housing Ra Primary region Rb Secondary region

Claims

1. A housing, and a unit mounting portion provided inside the housing and capable of mounting a plurality of units having an adapter on the front surface, the optical wiring rack comprising: The unit mounting portion can mount a first unit, which is the unit to which an optical fiber protected by a tube is connected, and a second unit, which is the unit to which a first cable to which an optical connector is connected is connected. The optical wiring rack further includes: a first positioning portion for positioning the optical fiber, and a second positioning portion for positioning the first cable, and the second positioning portion is located in front of the first positioning portion, the optical wiring rack.

2. The first positioning portion is attached to the back surface of the housing, and the second positioning portion is attached to the side surface of the housing, the optical wiring rack according to claim 1.

3. The second positioning portion includes a plurality of plate portions extending along the vertical direction, the plurality of plate portions are attached at different positions in the vertical direction, and the plate portion below the upper plate portion is attached further back, the optical wiring rack according to claim 1 or claim 2.

4. The second positioning portion, includes a fixing portion surrounding the plurality of first cables, the optical wiring rack according to claim 3.

5. The area inside the housing is a primary area which is a wiring area of the optical fiber and the first cable wired to the unit, and a secondary area which is a wiring area of a second cable connected to the adapter and wired from the adapter to the outside of the housing, and the primary area is wider than the secondary area, the optical wiring rack according to claim 1.

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