JP4889596B2 - Optical cable housing part of optical cable device housing - Google Patents

Description

  The present invention relates to a housing of an optical cable device that receives and transmits video signals and the like using an optical fiber cable (hereinafter referred to as an optical cable). In particular, the optical cable is connected to a device unit to a transmission / reception device or an O / E converter. The present invention relates to an optical cable housing portion (also referred to as an optical cable tray or simply a tray) that winds and accommodates extra length portions and end portions in a loop shape.

  In this type of optical cable equipment housing, an optical cable housing portion is detachably provided so as to cover the front opening portion, and an equipment unit for converting an optical signal into an electrical signal or an optical signal output in a housing below the optical cable housing portion. A device unit or the like for amplifying the signal is inserted into the housing below the optical cable housing.

By the way, the conventional general optical cable housing part is composed of a tray having a resin-like peripheral wall attached so as to cover the front opening part of the optical cable device housing, and the extra length portion of the optical cable is placed on the substrate of the tray. Arc-shaped or linear guide walls that can be wound in a loop shape with a safe curvature that does not damage the internal optical fiber are erected in multiple layers with an oval or circular interval ( For example, see Patent Literature 1 and Patent Literature 2).
Japanese Patent Laying-Open No. 2006-301327 (FIG. 2) JP 2007-057806 (paragraph 0002 and FIG. 1)

However, the conventional general optical cable housing as described above cannot cope with the following cases. That is,
For example, an optical signal for broadcasting transmitted through an optical cable is converted into an electrical signal (RF signal) and amplified, and then an equipment unit that sends out the signal via a coaxial cable and an output of the transmitted optical signal are amplified to a remote location. When different types of device units are provided in a common housing, such as a device unit for transmission, or two or more optical cables to be relayed are separated, and each separated optical cable is stored in a separate optical cable housing unit. When winding and handling along the guide part, the conventional optical cable housing part has an integral structure. For example, a single device unit (for conversion from an optical signal to an electrical signal) is inserted into the housing. If there is enough space to insert another device unit, add another device unit (for example, for optical signal output amplification) to the housing. Then, the connection between the optical input portion of the device unit already installed in the housing and the optical connector provided at the end of the optical cable is canceled, and the optical cable housing portion is removed. Then, after the other device unit is inserted into the housing, the optical cable in the optical cable housing portion is rewound, and the extra length portions are rewound again so that the optical cable can be connected to the two device units. Therefore, it is necessary to attach the optical cable housing portion to the front opening portion of the housing.

  Therefore, each time a new device unit is added, the optical cable wound around the optical cable housing must be rewound and rewound, which is a laborious task and the optical cable is rewound and wound. Sometimes the optical cable can be damaged.

  The present invention has been made in view of the above points. For example, when newly installing an equipment unit in an empty space in a housing and connecting a necessary optical cable, a newly introduced optical cable, or an already introduced optical cable. The optical cable branched from the optical cable is connected to the installed optical cable receiving part integrally with the attached optical cable receiving part attached on the installed equipment unit, and can be wound around the attached optical cable receiving part. An object of the present invention is to provide an optical cable housing portion of an optical cable device housing that can be expanded and maintained by an effort.

In order to solve the above-described problems, the optical cable housing portion of the optical cable device housing according to the present invention is detachably attached to the optical cable housing portion that can be housed by winding the optical cable in a loop shape so as to cover the front opening portion. In an optical cable device housing having a device unit in a housing below the optical cable housing portion, the optical cable housing portion is divided into a plurality (two or more, for example, three) in the width direction, and the divided housing portions while detachable independently with respect to the front opening of the housing in the phases adjacent to butt the frame-shaped wall opposing side a combined state in series, connecting the divided the KakuOsamu ml portion from each other It is possible to connect to or disconnect from each other .

As described in claim 2, made from the each of the accommodating parts which are divided (3,3) substantially bisected optical cable accommodating portion, provided with a Wakujokabe (30-33) around each of the divided At least two notch grooves ( 24 to 26) are provided in the frame-like walls ( 31, 32) on both sides of each accommodating portion ( 3) , spaced apart in the longitudinal direction, opened at the upper end, and communicated in the vertical direction. this plate-shaped pieces (22, 23) provided with respective to the front portion and the rear portion with a predetermined interval so as are formed, mutually coupled state of said side of the frame-shaped wall facing (31, 32) projecting at least one on the upper end of the plate-shaped pieces (23, 23) interposed therebetween opposite side each of the plate-shaped piece (22) fitting claws and (22a) to the inward respectively butted on, each A connecting member (for example, in the shape of a rectangular tube) having a fitting edge that can be fitted to the fitting claw Preferably comprises a binding member 28).

As described in claim 3, at least two notched grooves ( 24 to 26) that are open at the top and communicate with each other in a vertical direction are formed in a part of each side frame-like wall. provided at predetermined intervals so pieces (22, 23) are formed, a plate of the opposing at least one of the wide of each narrow width of the plate-shaped pieces (23, 23) interposed therebetween opposite side butted Jo piece (22) while projecting fitting claws and (22a) inwardly respectively to the upper end of at least one said wide plate-like pieces of facing (23) from each other are butted, the plate-like narrow as pieces (22) is positioned toward the back in the notched groove (24 or 26) of the divided housing unit of the other facing (3), opposite the side of the frame-shaped wall (31, 32 ) butt the plate-shaped piece on both sides of the frame-shaped wall (31, 32) in the state (22 Can surround all 23), connecting members (e.g., rectangular tubular shape having at the same time can be fitted mating edge said to fitting claw (22a) on both sides of the frame-shaped wall (31, 32) at the upper end The connecting member 28) can be detachably connected (for example, with a hand or a tool ) in the central opening ( 3a) formed in each of the divided accommodating portions ( 3) .

5. The outer frame of one of the optical cable housing portions (3) in a state in which each of the divided optical cable housing portions ( 3, 3) is attached to the front open portion of the housing, as defined in claim 4. as predetermined gap is formed between the like wall (31 or 32), the inner wall along the inner circumferential surface of the front opening of the case body (1d) is provided, said outer side of said connecting member The two plate-like pieces ( 22, 23) of the frame-like wall ( 31 or 32) may be surrounded so as to be fitted and held by one fitting claw.

  Since the optical cable housing portion of the optical cable equipment casing according to the present invention is configured as described above, the following excellent effects are obtained.

  -According to invention of Claim 1, an optical cable accommodating part is divided | segmented into multiple in the width direction, and the front opening of the said housing | casing is carried out in the state where each divided | segmented accommodating part was faced | matched to the adjacent frame-like wall in series. Since each of the divided housing portions can be connected to the front open portion of the housing or in a state before being attached, for example, one device unit (for example, O / E conversion) is inserted into the housing, and the divided housing is attached above the device unit. In other words, there is an empty space in the housing, and another device unit (for example, (For optical signal amplification), and a separate housing unit is also installed above the other device unit, and it is integrated with the separate housing unit already installed in the housing. An optical cable to be introduced or an optical cable branched from the previous optical cable can be wound around a new divided housing portion and connected to another device unit. In particular, when an optical cable branched from the previous optical cable is wound around the newly installed optical cable divided housing part, the optical cable is wound over a plurality of (two or more) divided housing parts. If the housing portions are not integrally connected, the optical cable may be bent and damaged at adjacent portions between the divided housing portions, but according to the present invention, there is no such a risk. In addition, since only another divided housing portion is added, the optical cable housing portion is unwound from the housing after the optical cable on the optical cable housing portion is rewound as in the prior art, and another device unit is inserted to Since it is not necessary to attach the optical cable housing portion and wind the optical cable again, the optical cable winding operation and the like are simplified, and the risk of damaging the optical cable is reduced.

  In addition, by making it possible to release the connected state of the optical cable housing portions once connected, for example, when a plurality of device units are inserted in the housing, each corresponding divided housing directly above the plurality of device units. When an optical cable is wound for each part, when one of the equipment units is maintained, the optical cable wound in the optical cable divided housing portion directly above the equipment unit to be maintained is connected to the connector of the equipment unit. Pull out from the (optical repeater adapter) and release the optical cable split housing corresponding to the device unit to be maintained with the adjacent optical cable split housing by pulling out the connecting member, remove only the optical cable housing, The equipment unit can be removed. After the maintenance is completed, with the device unit inserted in the housing, attach the removed optical cable split housing, connect the optical cable to the maintenance completed device unit, and then connect with the adjacent optical cable split housing Good. Further, when the optical cable is wound across the plurality of optical cable division housings, the optical cables corresponding to all the plurality of device units in the casing are pulled out from the connectors (optical relay adapters), respectively, Remove all of the optical cable housing parts (a plurality of integrated optical cable housing parts) covering the front opening part in a connected state, and take out only the device unit to be maintained in the housing. Then, after the maintenance is completed, the device unit is inserted into the housing, a plurality of connected divided housing portions are attached to the front opening portion of the housing, and optical cables corresponding to the respective device units are connected.

  According to the invention of claim 2, for example, only the device unit corresponding to one optical cable housing portion among the optical cable housing portions on the left and right sides is inserted into the housing, and the device unit is also installed in the optical cable housing portion. When an optical cable is wound only on the side corresponding to the other optical cable, another device unit is inserted into the housing below the other optical cable housing, and another optical cable branched from the wound optical cable is inserted. When connecting to the other device unit, the extra length portion of another branched optical cable is wound around the other optical cable housing portion, and another optical cable is connected to the other device unit with a connector. Then, the left and right optical cable housing parts are connected together via a connecting member. At this time, the connecting member is fitted into the fitting part between the optical cable housing parts, and the fitting claw is fitted to the fitting edge at the upper end. Are connected together, and a series of operations is completed by winding an extra length of optical cable. In particular, when the optical cable to be newly wound straddles between the left and right optical cable housing parts, if the optical cable housing parts are connected in advance before winding the optical cable, the optical cable will not be bent between the housing parts and will be damaged. There is almost no fear. In addition, if the fitting claws that are fitted and connected with the connecting member are damaged during long-term use, the right and left optical cable housing parts are removed and replaced while the optical cable is rewound. Since the plate-shaped piece provided with the fitting claw to which the member is fitted and fitted is replaced and renewed, the connecting member can be fitted and connected to the new fitting claw.

  According to the invention of claim 3, since the connecting member is integrally connected to the space in the central opening of the optical cable housing portion and can be easily separated with a tool such as a hand or a cutter. I won't lose it. In addition, the plate-like piece provided with the fitting claw at the upper end is positioned in the other notch groove in a state where the side frame-like wall of the optical cable housing portion is abutted, so that the fitting portion of the connecting member is used as the fitting claw. When fitting, the plate-like piece curves in the direction opposite to the protruding direction of the fitting claw, and the fitting claw fits comfortably on the fitting edge of the connecting member.

  According to the invention of claim 4, a plate-like piece having a fitting claw at the upper end is also provided on the outer frame-like wall of one or the outermost optical cable housing portion, and on the outside thereof Since the inner peripheral wall of the housing is provided at a predetermined interval, for example, in a state where the connecting member that is extended and connected to the central opening of the divided housing portion is cut off, or the connecting member is removed. In a state where the connection between the optical cable housing portions is released, the connecting member can be fitted and held in the fitting claws of the outer frame-shaped wall. Therefore, a state in which one device unit is inserted in the housing and only one divided housing portion is attached before another divided housing portion is attached and connected, or the divided housing portion is disconnected. Therefore, the removed connecting member can be held in a fixed position during maintenance work of the equipment unit and the like, and is not lost.

  DESCRIPTION OF EMBODIMENTS Hereinafter, an optical cable housing portion of an optical cable device housing according to the present invention will be described with reference to the accompanying drawings.

  FIG. 1A is an external perspective view showing an optical cable device housing provided with an optical cable housing portion according to an embodiment of the present invention, and shows a state in which a lid is opened, and FIG. It is a perspective view which expands and shows the state which tries to match | combine and connect the two optical cable accommodating parts shown in FIG. FIG. 2 is a plan view showing two optical cable housing parts attached to the front opening part of the housing of FIG. FIG. 3 is a perspective view showing the optical cable device housing with the pair of left and right optical cable housings removed, and FIG. 4 is a perspective view showing the optical cable housing with the connection removed from the housings. FIG. 5A is a perspective view showing an enlarged view of the main part of the present invention surrounded by a circle in FIG. 1A.

  As shown in FIG. 1 (a), the optical cable device casing 1 is composed of a casing of an optical receiver in this embodiment. The casing 1 is made of resin and has a front (upper surface) 1a opened, and the front opening 1a. A resin lid 2 that can be freely opened and closed is provided on the side. The casing 1 is placed on the wall of the building near the entrance of an optical cable (not shown) such as a building or a condominium or a TV output signal cable after optical signal conversion with both hinges 2c of the lid 2 facing upward. It is attached with a fixing screw using the attachment piece 1f.

  As shown in FIG. 1, a pair of left and right optical trays 3 made of resin that are shallow and open at the upper end are detachably fitted into the front opening 1 a of the housing 1. On the other hand, in the case 1 below the right side optical cable housing 3, in the case of this example, although not shown, an O / E converter that converts an optical signal into an electric signal, and the converted electric signal are amplified. An amplifier is housed as one device unit 10, and an amplifier for amplifying an optical signal is housed as another device unit 11 in the housing 1 below the left optical cable housing 3. The front surface 1b of the housing 1 (the side located on the lower surface when attached to the wall surface) is used for monitoring the TV electrical signal output hole 10a and the TV electrical signal output from the output terminal 10a. A hole 14 for the monitor terminal 10b is formed with a gap. In addition, locking pieces 4 are provided at right angles in the front end portions of both side frames 2 b of the lid 2, and locking edge portions 4 a locked corresponding to these locking pieces 4 are provided on both sides of the housing 1. The upper surface of the surface 1c is integrally formed continuously in the front-rear direction. In addition, fasteners 5 are provided on both sides of the open end front surface 2 a of the lid 2 so as to protrude in a right angle direction, and screw hole portions 5 a of the fastener 5 are integrally formed on the front surface 1 b of the housing 1.

  As shown in FIG. 4, the left and right optical cable housing portions 3 are provided with frame-shaped walls 30 to 33 erected over the entire circumference. Each optical cable housing portion 3 is opened by cutting out a part (four locations) of the front frame-like wall 30 corresponding to the position of the entrance / exit 34 of the optical cable (the central portion and both side portions of the front surface). An opening 1e is also provided on the front surface 1b of the housing 1 so as to coincide with these notch openings 30a. An opening 2d is also provided on the front surface 2a of the lid 2 at a position corresponding to the opening 1e. Reference numeral 1f in FIG. 1 is a wall surface mounting piece of the housing 1 and is provided with a set screw through hole. This mounting piece 1f is not only the center and both sides of the front lower edge, but also the center of the upper edge. (Not shown).

  In this example, each entrance / exit 34 is provided with a mounting portion 34a of an elastic body holder 7 (FIG. 1) capable of sandwiching an optical cable. This mounting portion 34a is opposed to the frame-like walls 31 and 32 on both sides. And it is comprised by the inner side frame wall 34b erected in parallel. The elastic holder 7 is entirely formed of a material having elasticity such as rubber or elastomer, and optical cable insertion grooves (not shown) are formed in parallel at equal intervals. A cut is made in the longitudinal direction at the center of the upper surface.

Two elastic ribs 8 corresponding to the notches of the elastic body holder 7 and ribs 9 corresponding to the longitudinal grooves on both sides of the elastic body holder 7 are spaced apart from each other at the elastic holder mounting portion 34 a of each entrance / exit 34. Standing up. The opposing surfaces (clamping surfaces) of the ribs 8 and 9 are formed as tapered surfaces whose intervals gradually decrease from the proximal end toward the notch opening 30a on the distal end side. Further, a fixing screw hole portion 12 for winding and fixing a support member placed in parallel with the optical fiber in the optical cable is provided at the corner near the back surface opposite to the entrance / exit 34 of the optical cable housing portion 3. .

  An elliptical opening 3a is provided at the center of each optical cable housing 3, and a guide wall comprising a combination of a linear portion and an arcuate portion at four arcuate peripheral portions around the opening 3a. 35 is erected on the substrate 3b, and the front left arc portion and the rear right arc portion are doubled with a gap in the radial direction, and the rear left arc portion is tripled with a gap in the radial direction. A wall 35 is erected on the substrate 3b. The optical cable is drawn into the inside through the entrance / exit 34 along the guide groove portion (or guide portion) 39 constituted by these guide walls 35, or the extra length portion of the optical cable sent out from the inside is looped along the guide groove portion 39. Can be wound.

As shown in FIG. 4, each optical cable housing portion 3 has the same shape in this example as described above, and is formed of a tray-like frame body having a rectangular shape when viewed from above and having frame-like walls 30 to 33 around it. . The frame-like walls 31 and 32 on both sides of each optical cable housing 3 are provided on the right and left optical cable housings 3 and 32 just behind the elastic holder mounting portion 34a and just in front of the support member fixing screw hole portion 12. The connecting fitting portions 21 for connecting the three are provided. As shown in FIG. 1B in an enlarged manner, each fitting portion 21 has notched grooves 24 to 26 that allow the narrow plate-like piece 22 and the slightly wide plate-like piece 23 to communicate in the vertical direction. A fitting claw 22a is protruded inwardly at the upper end of the narrow plate-like piece 22, and the opposed side frame-like walls 31 and 32 of the left and right optical cable housing portions 3 and 3 are abutted. In this state, the wide plate-like pieces 23 are abutted back to back, and the narrow plate-like piece 22 provided with the fitting claws 22a is located on the opposite side across the wide plate-like piece 23. A notch groove 24 or 26 is positioned in each of the opposing side frame-like walls 31 and 32 of the narrow plate-like piece 22, and the narrow plate-like piece 22 is outside when the connecting member 28 described later is fitted. It is easy to bend. Thereby, the fitting claw 22a at the upper end of the plate-like piece 22 is smoothly fitted into the fitting edge 28a at the upper end of the connecting member 28.

  In the left optical cable housing part 3, the notch groove 26 at the rear end is integrated with the concave opening as shown in FIGS. 1 (b) and 5 (b), and is opened widely. In the optical cable housing 3, the notch grooves 24 and 26 at the front end and the rear end are greatly opened by being integrated with a concave or vertically long opening.

As shown in FIGS. 1 (b) and 5 (b), the connecting member 28 is a rectangular cylinder in this example, and the opposed side frame-like walls 31 and 32 of the left and right optical cable housing portions 3 and 3 are abutted against each other. In the state, it consists of a rectangular tube that can surround the wide plate-like pieces 23, 23 back to back and the plate-like pieces 22, 22 on both sides. The upper end opening edge of the connecting member 28 has a rectangular frame shape, projecting pieces 28b facing the intermediate position in the width direction, and both sides thereof are formed at the fitting edges 28a with the fitting claws 22a. Moreover, the lower end opening edge of the connection member 28 is also rectangular frame shape, and the lower end edge 28c of both sides protrudes below each. As shown in FIG. 4, the connecting member 28 is normally continuously provided in the opening 3 a of the left and right optical cable housing portions 3 so as to be separable by a hand or a tool such as a cutter. And in the state which faced the inner side frame-like walls 31 and 32 of the right and left optical cable accommodating parts 3 and 3, the front and rear narrow plate-like pieces 22 are outwardly fitted by fitting into the respective fitting parts 21 from directly above. After the plate-like pieces 22 and 23 are bent and inserted into the connecting member 28, the front and rear narrow plate-like pieces 22 that are bent outward are restored to their original states, and the upper and lower engaging claws 22a The coupling members 28 are fitted to the fitting edges 28a, respectively.

  As shown in FIGS. 1A, 2 and 5A, the inner peripheral wall 1d (including the front surface 1b and both side surfaces 1c) extends along the inner peripheral surface of the front opening 1a of the housing 1. The part protrudes upward slightly and is provided integrally. The left and right optical cable housing portions 3, 3 are attached so as to contact the front surface 1b, the left side surface 1c, etc. of the inner peripheral wall 1d with the inner side frame-shaped walls 31, 32 abutted to cover the front opening 1a. Yes. In this state, as shown in FIG. 2, a predetermined gap is generated in the front-rear direction between the outer side frame-like wall 32 of the right optical cable housing 3 and the right side surface 1c of the inner peripheral wall 1d. Therefore, the connecting member 28 can be fitted and held in the front and rear fitting portions 21 ′ and 21 ′ of the outer side frame-like wall 32 of the right optical cable housing portion 3.

  Furthermore, each optical cable accommodating part 3 * 3 is provided with the following structures. That is, as shown in FIG. 1 and FIG. 2, in this example, the optical cable is formed in a loop shape with a certain interval in the radial direction along the guide groove portion 39 between the plurality of guide walls 35 in order from the outer peripheral side to the inner peripheral side. By winding, the extra length portion can be wound and accommodated in a loop shape with a large curvature. An optical cable retaining piece 35a is integrally formed at the upper end of the guide wall 35 with an interval in the longitudinal direction.

  Further, a straight guide wall 36 that intermittently connects the guide walls 35 and 35 of the front and rear arc-shaped corners is erected on the substrate 3b at the straight edges on both sides around the opening 3a. In addition, a pair of front and rear straight guide walls 38 and 38 are erected on the substrate 3b with a space in the front and rear direction outside the continuous straight guide walls 36 on the left and right. Further, a substantially gap-shaped spring piece 41 as viewed from above on the inner side and the outer side of the straight guide wall 36 on the left side of the figure is gradually spaced toward the front and rear guide walls 37 or 38 (guide groove portion). The guide walls 37 and 37 are arranged so as to be narrower and the front and rear guide walls 37, 37 are opposed to each other by a substantially U-shaped spring piece 41 as viewed from above on the outside of the straight straight guide wall 35 on the right side. It is extended integrally so that the space | interval (groove width of the guide groove part 34) may become narrow gradually.

  An optical signal having an unnecessary wavelength is removed from a plurality of optical signals having different wavelengths transmitted by an optical cable between the distal end portion of the substantially U-shaped spring piece 41 of the straight guide wall 36 and each guide wall 37. The filter to be held is sandwiched and held.

  Further, as shown in FIGS. 1 and 2, in the linear portion on the right side of the oval opening 3a, a rectangular partial substrate 3d is extended from the substrate 3b into the opening 3a, and this partial substrate is connected. A pair of left and right plate-shaped guide walls 43 and 44 are erected on 3d at intervals in the width direction. Accordingly, the support portion 45 that can support the optical relay adapter 50 (FIG. 1) from both sides between the guide wall 43 and the guide wall 44 and between the guide wall 44 and the straight guide wall 36.・ It is composed of 46. An optical signal input via the optical repeater adapter 50 is converted into an electric signal by, for example, an O / E converter in the device unit 10, and the converted electric signal is amplified and output from the output terminal 10a and the monitor terminal 10b. Is output.

  By the way, although illustrated about the optical cable housing part 3 on the right side of FIG. 1 and the equipment unit 10 in the housing 1 below the equipment unit 11 housed in the housing 1 below the optical cable housing part 3 on the left side, In the case of this example, an amplifier for amplifying an optical signal transmitted by an optical cable is built in, and an optical signal input via the optical relay adapter 50 by the optical cable is amplified by an amplifier in the device unit 11 on the left side. It is possible to transmit to a remote place again by the optical cable taken out from the optical cable entrance 34 of the left optical cable housing 3.

  The housing 1 of the optical receiver according to the embodiment of the present invention is configured as described above. Next, usage modes of the left and right optical cable housing units 3 and 3 will be described.

  Although illustration is omitted, an optical cable containing a support member is used as the optical cable. Usually, the optical cable housing portion 3 is removed and the optical cable is processed while the housing 1 is attached to the wall surface of the building. The elastic body holder 7 is inserted into the insertion groove into the insertion groove in a state where the elastic body holder 7 is attached to the entrance / exit 34 of the housing portion 3. At this time, each insertion groove is in a position not sandwiched between the ribs 8 and 9. Then, with the optical cable inserted into each insertion groove, the elastic body holder 7 is slid downward in the figure, so that the holder 7 has a holding surface with a narrowed downward space between the opposing ribs 8 and 9. The insertion groove (upper end open groove) is sandwiched, and the optical cable in the insertion groove is tightened and fixed together with the holder 7.

  Although illustration of the optical cable is omitted, the device housing 1 of the optical receiver of this example can include two device units 10 and 11 of different types. Therefore, the optical cables to be relayed can be separated into two or three or more, and the separated optical cables can be wound and handled along the guide groove portions 39 of the left and right optical cable housing portions 3 and 3, respectively. For example, the same device casing 1 is initially used when the device unit 10 is used only for the purpose of converting an optical signal into an electric signal and transmitting the signal from the output terminal 10a to the user through a coaxial cable. In some cases, for example, it is required to amplify the output of an optical signal and transmit it further to a far place using the empty space. In such a case, with the optical cable wrapped around the right optical cable housing 3, the optical signal amplification device unit 11 is inserted and fixed in the left empty space, and is separated (left side) on the device unit 11. The optical cable housing part 3 is attached to the front open part 1a of the housing 1 so that the inner frame wall 32 abuts the inner frame wall 31 of the right optical cable housing part 3. Then, the connecting member 28, which has been separated from the state of being continuously provided in the central opening 3 a of the optical cable housing portion 3 with a hand or a cutter, or held in the fitting portion 21 ′, is fitted to the fitting portions 21 and 21. And the left and right optical cable housing portions 3, 3 are integrally connected. In this state, the excess length of the optical cable drawn from the entrance / exit 34 of the right optical cable housing 3 or the optical cable branched from the optical cable connected to the device unit 10 is wound around the left optical cable housing 3 and connected to the device unit 11. can do. In the case of this example, the optical cable is wound over the left and right optical cable housings 3 and 3, but since both housings 3 and 3 are integrally coupled, the optical cable is bent and damaged. There is nothing.

  On the other hand, when the optical cable is wound around the left and right optical cable housings 3 and 3 as described above, maintenance of the two device units 10 and 11 in the device housing 1 or one of the device units is performed. After removing the connection between each device unit 10 and 11 and the optical cable from the connector, remove the left and right connected optical cable housings 3 and 3 and take out the device unit 10 or 11 or one of the device units for maintenance. Just do it. Also, the optical cables can be wound separately around the left and right optical cable housing portions 3, 3, and the optical cable housing portions 3, 3 on both sides may be connected via the connecting member 28 in this state. In this case, for example, if the equipment unit 10 below the right optical cable housing 3 must be maintained, the connection between the optical cable wound around the right optical cable housing 3 and the equipment unit 10 is eliminated. After that, only the right optical cable housing 3 can be removed from the front opening 1a of the housing 1 for maintenance.

  Specifically, as shown in FIG. 2, front and rear connecting fitting portions 21, 32 of the inner side frame-like walls 31, 32 of the left and right optical cable housing portions 3, 3 attached to the front opening 1 a of the housing 1. The connecting member 28 is pulled out and removed from the connector 21 to cancel the connected state. The connecting member 28 can be easily pulled out by bending the fitting claws 22a at the upper ends of the front and rear narrow plate-like pieces 22 to the outside so that the fitting state with the fitting edges 28a is eliminated. Yes. In this way, the connecting member 28 is pulled out and removed from the fitting portions 21 and 21, and is fitted and held in the fitting portion 21 'of the outer side frame-like wall 32 of the right optical cable housing portion 3.

  In this state, the left and right optical cable housing portions 3, 3 can be individually detached independently from the front opening portion 1a of the housing 1. For example, only the right optical cable housing portion 3 is removed, and the lower device unit 10 is removed. It can be taken out and maintained. After the maintenance is completed, the device unit 10 is inserted into the housing 1, the right optical cable housing 3 is attached, and the connecting members 28 are pulled out and removed from the fitting portions 21 ′. The connecting members 28 are fitted into the fitting portions 21 and 21 formed by abutting 31 and 32 to connect the left and right optical cable housing portions 3 and 3, respectively. Here, a process such as winding the extra length of the optical cable in a loop along the guide groove 39 of the right optical cable housing 3 may be performed. That is, unlike the prior art, only one of the optical cable housing portions 3 can be removed, so that the minimum amount of work is required, and the risk of damaging the optical cable is greatly reduced as compared with the case of removing the entire optical cable housing portion.

  Although the embodiment of the optical cable housing portion of the present invention has been described above, the optical cable device housing of the present invention can be implemented as follows.

  -In the said Example, although the optical cable accommodating part attached to the front opening part 1a of the housing | casing 1 was made into the left-right pair, it is the same even if it divides into 3-4 optical cable accommodating parts, for example by dividing into 3 or 4 equal parts. Can be implemented. In other words, the number can be increased according to the number of device units accommodated in the housing 1 below the optical cable housing portion 3, and two optical cable housing portions can be provided for one device unit.

  -It can also be provided at three locations of the front, middle and rear portions of the inner frame-like walls 31 and 32 where the connecting fitting portion 21 for fitting the connecting member 28 is abutted. The fitting portion 21 ′ that is temporarily held during the maintenance work of the unit can also be omitted.

  In the above embodiment, the left and right optical cable housing portions 3 have the same structure and shape, but the structure and shape can be changed to be different on the left and right.

FIG. 1A is an external perspective view showing an optical cable device housing provided with an optical cable housing portion according to an embodiment of the present invention, and shows a state in which a lid is opened, and FIG. It is a perspective view which expands and shows the state which tries to match | combine and connect the two optical cable accommodating parts shown in FIG. FIG. 2 is a plan view showing two optical cable housing parts attached to the front opening part of the housing of FIG. It is a perspective view which shows the optical cable apparatus housing | casing of the state which removed the pair of right and left optical cable accommodating parts. It is a perspective view which shows the optical cable accommodating part of the state which removed from the housing | casing and the connection was cancelled | released. FIG. 5A is a perspective view showing an enlarged view of the main part of the present invention surrounded by a circle in FIG. 1A.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Optical cable apparatus housing | casing 2 Lid 3 Optical cable accommodating part 3a Opening part 3b Board | substrate 3d Partial board | substrate 4 Locking piece 5 Fastening piece 7 Elastic body holder 8/9 Rib 10/11 Equipment unit 12 Fixing screw hole part 21 Connection fitting Portions 22 and 23 Plate-like piece 22a Fitting claws 24 to 26 Notch groove 28 Connecting members 30 to 33 Frame-like wall 34 Optical cable entrance / exit 34a Elastic holder mounting portion 35 Guide wall 36 Straight guide wall 37 Straight guide wall 38 Straight Guide wall 39 Guide groove 41 Spring pieces 43, 44 Plate guide walls 45, 46 Support

Claims (4)

In an optical cable device housing provided with a device unit in a housing below the optical cable housing portion, detachably attached to the optical cable housing portion so as to cover the front open portion, which can be accommodated by winding the optical cable in a loop shape,
Dividing the optical cable housing into a plurality in the width direction, each independently of the front opening of the housing and each of the accommodating parts which are divided-adjacent against the frame-shaped wall opposing side in a state that combines a series And detachable,
Optical cable accommodating portion of the divided the KakuOsamu volume unit can be connected to each other, or each other connection and releasably cable apparatus housing, characterized by being configured. Each of the divided housing portions ( 3, 3) is composed of an optical cable housing portion that is substantially bisected, and each has a frame-like wall ( 30-33) around it,
Notched grooves ( 24 to 26) are provided in the frame-like walls ( 31, 32) on both sides of each of the divided housing portions ( 3) , spaced apart in the longitudinal direction, opened at the upper end, and communicated in the vertical direction. with at least two plate-like pieces (22, 23) are respectively provided on a front portion and a rear portion with a predetermined spacing as to form the connecting state of the side of the frame-shaped wall facing (31, 32) in projecting at least one of said plate-shaped pieces (23, 23) interposed therebetween opposite side each of the plate-shaped pieces are butted to each other (22) fitting claw (22a) on the upper end of each inward,
The optical cable housing portion of the optical cable equipment casing according to claim 1, further comprising a connecting member ( 28) having a fitting edge at an upper end that can be fitted to each of the fitting claws. At least two plate-like pieces ( 22, 23) having different widths are formed in a part of each side frame-like wall with notch grooves ( 24-26) that open at the top and communicate in the vertical direction. so that the provided at predetermined intervals, each to the upper end of the opposed butt is at least one of the wide of the plate-shaped pieces (23, 23) interposed therebetween opposite side plate-like pieces of each narrow width (22) The fitting claw ( 22a) protrudes inward, and at least one opposed wide plate-like piece ( 23) is abutted against the other and the other narrow plate-like piece ( 22) is opposed to the other. So as to be positioned facing the notch groove ( 24 or 26) of the divided accommodating portion (3) ,
It is possible to surround all of the plate-like pieces ( 22, 23) of the frame-like walls ( 31, 32) on both sides with the opposed side-side frame-like walls ( 31, 32) facing each other. A central member formed with a connecting member ( 28) having a fitting edge at the upper end that can be fitted simultaneously with the fitting claws ( 22 a) of the shaped walls (31, 32) in each of the divided accommodating portions ( 3). The optical cable housing part of the optical cable equipment casing according to claim 1, wherein the optical cable housing part is detachably connected in the opening ( 3a) . In a state where the optical cable housing unit which is the divide (3,3) attached to the front opening of the housing, one of said optical cable accommodating portion outward frame-shaped wall (31 or 32) and of the (3) An inner peripheral wall ( 1d) is provided along the inner peripheral surface of the front opening portion of the housing so that a predetermined gap is formed between them.
The connecting member surrounds the two plate-like pieces ( 22, 23) of the outer frame-like wall ( 31 or 32) and can be held by being fitted to one of the fitting claws. The optical cable housing portion of the optical cable equipment casing according to claim 2 .

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