JP4614864B2 - Communication equipment - Google Patents

Description

  The present invention relates to a communication device for accommodating a plurality of communication cables.

  Currently, FTTH (Fiber To The Home), which is a data communication service for homes using optical fibers, is spreading to ordinary homes. In this FTTH, an optical fiber installed outdoors is connected to an optical receiver installed on an indoor or outdoor wall such as a general house. Communication data transmitted from the optical fiber via the optical receiver is transmitted to each device such as a personal computer or a TV in the home.

  FIG. 12 is a perspective view of a conventional optical receiver in a state where a cover portion is opened. The optical receiver 100 is configured by housing a photoelectric conversion unit 102 and an optical fiber tray 103 for organizing and housing optical fibers (not shown) in a casing 101. Among these, the photoelectric conversion unit 102 is a conversion unit that converts an optical signal from an optical fiber into an electric signal, and is connected to the optical fiber via a connector (not shown). Further, the photoelectric conversion unit 102 is provided with a connection terminal (not shown) that outputs the converted electric signal, and the electric signal is transmitted to each device such as a TV through the connection terminal.

  The optical fiber tray 103 is formed with an accommodation path 104 for winding up the optical fiber and accommodating the extra length portion. The optical fiber is wound inside the accommodation path 104 to hold it. Can be kept. The accommodation path 104 is provided with a splice fixing portion 105 for fixing two mechanical splices (not shown) for connecting a plurality of optical fibers to each other. A mechanical splice can be detachably attached (see, for example, Patent Document 1 and Patent Document 2).

  Here, the conventional optical receiver is configured on the assumption that the input signal is transmitted as it is without being converted. That is, the signals relayed by the optical receiver include a video signal such as a TV signal and a communication signal such as the Internet. These signals are simply transmitted through separate optical fibers. Had been introduced inside. In the optical receiver, these optical fibers are connected to other optical fibers, the optical fibers for transmitting communication signals are drawn indoors, and the optical fibers for transmitting video signals are the photoelectric conversion units described above. Was connected to.

Japanese Patent Application Laid-Open No. 2004-354884 Japanese Patent Application Laid-Open No. 2004-354885

  However, in such a conventional signal transmission mode, it is necessary to draw the optical fiber for transmitting the video signal and the optical fiber for transmitting the communication signal into the optical receiver, respectively. It was complicated.

  Here, in order to solve such a problem, the video signal and the communication signal are multiplexed by WDM (Wavelength Division Multiplexing) or the like and introduced into the optical receiver via one optical fiber. It is possible to do. However, in this case, there is a problem that the communication elements to be accommodated in the optical receiver are greatly different from the conventional one, and the configuration of the conventional optical receiver cannot cope with this. Specifically, a new structure for accommodating these new communication elements, such as a filter for separating multiplexed signals and a larger number of mechanical splices than before, will need to be accommodated inside the optical receiver. It was requested to do.

  The present invention has been made in view of the above, and provides an optical receiver that can easily and reliably accommodate various communication elements even when a plurality of signals are multiplexed and introduced. With the goal.

To solve the above problems and achieve the object, the present invention is defined in claim 1, a communication apparatus having a storage tray for containing a plurality of communication cables, said storage tray, the A communication path that accommodates a plurality of communication cables, a surplus length processing unit that processes surplus length portions of the plurality of communication cables, and a cable connection unit that interconnects the plurality of communication cables to the communication device. Filter fixing for detachably fixing the connecting device fixing means for detachably fixing and the separation filter for separating the multiplexed first signal and second signal from each other to the communication device. Means , the accommodation path is disposed adjacent to the extra length processing section with a wall therebetween, and the filter fixing means is disposed in the accommodation path .
According to a second aspect of the present invention, there is provided a communication device including an accommodation tray for accommodating a plurality of communication cables, wherein an excess length portion of the plurality of communication cables is processed in the accommodation tray. A connector fixing means for detachably fixing the long processing portion and the cable connecting means for connecting the plurality of communication cables to the communication device, the multiplexed first signal and the second signal And a filter fixing means for detachably fixing the separation filter for mutually separating the signals to the communication device, the filter fixing means sandwiching the extra length processing section and the connection fixture fixing means It is characterized by being arranged on the opposite side.

A third aspect of the present invention is the first aspect of the present invention according to the first or second aspect , wherein the multiplexed first signal and second signal are introduced from the outside to the inside of the communication device. 1 communication cable and a second communication cable for introducing the first signal and the second signal into the separation filter are connected to each other by a first cable connection means, and the separation filter A third communication cable for transmitting the first signal separated by the first communication cable, and a fourth communication cable for outputting the first signal from the inside of the communication device to the outside. And a fifth communication cable for transmitting the second signal separated by the separation filter and the second signal from the inside of the communication device. A sixth communication cable for outputting to the outside Are connected to each other by the third cable connecting means, the connecting tool fixing means includes a first connecting tool fixing means for fixing the first cable connecting means, and the second cable connecting means. A second connector fixing means for fixing the cable connecting means and a third connector fixing means for fixing the third cable connecting means are provided.

According to a fourth aspect of the present invention, in the present invention according to any one of the first to third aspects, the connecting fixture fixing means is a detaching means for removing the cable connecting means from the connecting fixture fixing means. It is characterized by having.

According to a fifth aspect of the present invention, in the present invention according to the fourth aspect , the detaching means is disposed in the vicinity of the connection fixture fixing means, and is attached to the cable connection means fixed to the connection fixture fixation means. It is characterized in that it can be elastically deformed.

The present invention described in claim 6 is characterized in that, in the present invention described in claim 4 or 5 , the removal means is formed by forming a notch in the base surface of the storage tray.

According to a seventh aspect of the present invention, in the sixth aspect of the present invention, the first connector fixing means, the second connector fixing means, and the third connector fixing means are mutually connected. And the detaching means for each of these are arranged in opposite directions.

According to an eighth aspect of the present invention, in the present invention according to the fifth aspect , the plurality of connection fixture fixing means are arranged in parallel to each other, and are fixed by each of the plurality of connection fixture fixation means. The detaching means is arranged so as to extend between the cable connecting means.

A ninth aspect of the present invention is the first aspect of the present invention according to the fifth aspect , wherein the detaching means extends only to the cable connecting means fixed by the first connector fixing means. A detaching means, a second detaching means extending to the cable connecting means fixed by the first and second connecting fixture fixing means, and a first to third connecting fixture fixing means. A third detaching means extending to the cable connecting means to be fixed is provided.

The present invention according to claim 10, in the present invention according to any one of claims 1 or 3 9, the elastic piece partitioning the accommodating passage, by extending into the housing passage The filter fixing means is formed .

  According to this invention, in addition to the connector fixing means for fixing the cable connecting means, the filter fixing means for fixing the separation filter is provided, so that a novel signal for performing signal separation using the separation filter is provided. Even in the case of adopting the power transmission mode, communication elements necessary for this signal transmission can be fixed inside the optical receiver, and a new signal transmission can be easily realized. In particular, by providing filter fixing means that did not exist in the past, in the optical cable housing operation, first, the cable connecting means is fixed to the connector fixing means and the separation filter is fixed to the filter fixing means. The optical cable can be accommodated in a well-prepared manner, such as positioning the fixing means and then accommodating the extra length of the optical fiber, thereby improving the workability.

  According to the present invention, by providing three connection fixture fixing means, it is possible to fix a large number of cable connection means used in a new signal transmission form for performing signal separation using a separation filter inside the optical receiver. Therefore, it is possible to easily realize new signal transmission.

  According to the present invention, by providing the detaching means for detaching the cable connecting means, the cable connecting means can be easily and reliably detached, and the workability in the optical receiver can be improved.

  According to the present invention, since the detaching means can be elastically deformed toward the cable connecting means, the cable connecting means can be pushed out and removed only by elastically deforming the detaching means by pushing up the detaching means. The installation workability can be improved, and the removing means can be configured simply and inexpensively.

  According to the present invention, since the removing means is formed by forming a notch in the base surface of the receiving tray, the removing means can be formed without requiring a separate member for the receiving tray, and the removing means can be configured simply and inexpensively. .

  According to the present invention, since the detaching means are arranged in opposite directions, it is possible to prevent unintentional detachment of the cable connecting means that is not intended, and to save the space for arranging the detaching means. it can.

  According to the present invention, since the detaching means is arranged so as to extend between the cable connecting means, the cable connecting means is pressed by elastically deforming the detaching means toward any of the cable connecting means. Can be removed.

  According to this invention, since the first to third detaching means are provided as the detaching means, the cable connection fixed by the first connector fixing means when the first detaching means is elastically deformed. Means, when the second detaching means is elastically deformed, the cable connecting means fixed by the first and second connector fixing means, and when the third detaching means is elastically deformed, from the first The cable connecting means fixed by the third connector fixing means can be respectively removed, and a plurality of cable connecting means can be simultaneously removed in a predetermined combination, so that the installation workability of the optical receiver is improved. Can do.

According to the present invention, since the filter fixing means is configured by extending the elastic piece into the accommodating path , the separation filter can be fixed by simply elastically deforming the elastic piece by expanding it, and the optical receiver. The installation workability can be improved, and the removing means can be configured simply and inexpensively.

  Hereinafter, embodiments of an optical receiver according to the present invention will be described in detail with reference to the accompanying drawings. [I] First, the basic concept common to each embodiment was explained, then [II] specific contents of the first and second embodiments were sequentially explained, and [III] Finally, modifications to each embodiment were made. An example will be described. However, the present invention is not limited by these embodiments.

[I] Basic concept common to the embodiments First, the basic concept common to the embodiments will be described. The present invention generally relates to a communication device for accommodating a plurality of communication cables. Here, the communication device includes all devices that may need to fix the communication cable. Specifically, the optical receiver described above and an indoor optical fiber termination device (ONU: Optical Network Unit) are used. Is applicable. Moreover, the specific structure and name of the communication cable are arbitrary, and the communication cable including the coaxial cable is applicable in addition to the optical fiber described above. In the following embodiments, a case where an optical fiber is accommodated in an optical receiver will be described. Specifically, an optical cable is configured by covering an optical fiber with a reinforcing body, and the optical cable is drawn into the optical receiver, and the optical fiber is branched from the reinforcing body and accommodated inside the optical receiver. However, for simplification of description, the description will be made without particularly distinguishing between the optical fiber and the optical cable.

  In each embodiment, as a premise, an optical fiber that transmits at least two types of multiplexed signals is drawn into an optical receiver, and these two types of signals are separated by a separation filter, and a plurality of optical fibers are used. To transmit. Each of these optical fibers is connected to each other by a mechanical splice as required. Therefore, the optical receiver includes a fixing means for fixing the mechanical splice and a fixing means for fixing the separation filter. And the easy and reliable accommodation structure of an optical fiber and a fixing means is constructed by devising arrangement and structure of each of these fixing means.

[II] Specific Contents of Each Embodiment The specific contents of the first and second embodiments will be sequentially described in detail below with reference to the accompanying drawings.

[Embodiment 1]
First, specific contents of the first embodiment according to the present invention will be described in detail. The first embodiment relates to an optical receiver including a fixing means for fixing three mechanical splices and a fixing means for fixing a WDM filter.

(Basic configuration of optical receiver)
First, the basic configuration of the optical receiver will be described. 1 is a front view of the optical receiver according to the present embodiment, FIG. 2 is a bottom view of the optical receiver of FIG. 1, and FIG. 3 is a front view of the optical receiver of FIG. 4 is a signal system diagram conceptually showing a signal transmission path in the optical receiver. In the following description, the X direction in FIG. 1 is the left-right direction, the Y direction in FIG. 1 is the up-down direction, and the Z direction in FIG.

  The optical receiver 1 relays various signals and corresponds to the communication device in the claims. First, in order to show the function of the optical receiver 1, a signal transmission path in the optical receiver 1 will be described. As shown in FIG. 4, schematically, an optical fiber OF1 for transmitting a multiplexed video signal and communication signal is drawn into the optical receiver 1, and another optical fiber OF2 is passed through the mechanical splice MS1. Connected to. The optical fiber OF2 is connected to the WDM filter F1, and the video signal and the communication signal are separated from each other. From the WDM filter F1, an optical fiber OF3 for transmitting a video signal and an optical fiber OF4 for transmitting a communication signal are drawn out.

  Of these, the optical fiber OF3 for video signal is connected to another optical fiber OF5 via the mechanical splice MS2, and this optical fiber OF5 is connected to the photoelectric conversion unit 30, and in this photoelectric conversion unit 30, the video signal is transmitted. It is converted from an optical signal to an electrical signal. The video signal as an electrical signal is transmitted to a coaxial cable (not shown) via the connection terminal 31 of the photoelectric conversion unit 30. On the other hand, the communication signal optical fiber OF4 exiting the WDM filter F1 is connected to another optical fiber OF6 via a mechanical splice MS3, and this optical fiber OF6 is drawn out of the optical receiver 1 to be a predetermined device. Connected to. Note that the optical fiber OF3 and OF4 can be pulled out from the WDM filter F1 depending on the type and type of the WDM filter F1, and accordingly, the transmission paths illustrated in FIG. 4 may be different. The video signal, communication signal, mechanical splice MS1, mechanical splice MS2, mechanical splice MS3, WDM filter F1, optical fiber OF1, optical fiber OF2, optical fiber OF3, optical fiber OF5, optical fiber OF4, and optical fiber OF6 are respectively In the claims, the first signal, the second signal, the first cable connection means, the second cable connection means, the third cable connection means, the separation filter, the first communication cable, the second It corresponds to a communication cable, a third communication cable, a fourth communication cable, a fifth communication cable, and a sixth communication cable.

  Next, an outline of the configuration of the optical receiver 1 for achieving such signal transmission will be described. As shown in FIGS. 1 to 3, the optical receiver 1 is configured such that an optical fiber tray 20 and a photoelectric conversion unit 30 (shown only in FIG. 4) are detachably housed inside a housing 10. Yes. Among these, the housing | casing 10 is a structure of the optical receiver 1, and is a protection means which protects the optical fiber tray 20 and the photoelectric conversion unit 30 from the outside. The housing 10 includes a substantially box-shaped base portion 11 with one side open, and a cover portion 12 that substantially covers the base portion 11 from the open surface side. The cover portion 12 is a base portion. 11 is pivotally supported with respect to 11. In a state where the cover portion 12 is closed and the base portion 11 is substantially covered, a pair of lead-in ports 13 are formed at positions opposed to the base portion 11 and the cover portion 12. The optical fiber can be drawn out from the inside of the housing 10 to the outside. Further, the above-described connection terminal 31 of the photoelectric conversion unit 30 is exposed to the outside of the housing 10 on the side of the inlet 13, and a coaxial cable can be connected to the connection terminal 31.

  The photoelectric conversion unit 30 (shown only in FIG. 4) is a photoelectric conversion unit that converts an optical signal into an electric signal. The optical conversion unit 30 is formed in a substantially rectangular parallelepiped shape, and an optical fiber can be connected to a connection terminal (not shown) provided on the optical connector via an optical connector, and an optical signal is provided by a photoelectric conversion circuit (not shown) provided therein. Can be converted into an electrical signal, and the electrical signal can be output to the coaxial cable via a pair of connection terminals 31 provided below the electrical signal.

  Moreover, in FIGS. 1-3, the optical fiber tray 20 is for organizing and accommodating an optical fiber, and respond | corresponds to the accommodation tray in a claim. FIG. 5 is a perspective view of the optical fiber tray 20. The optical fiber tray 20 includes a fiber fixing part 40 for fixing an optical fiber, a splice fixing part 50 for fixing a mechanical splice, a filter fixing part 60 for fixing the WDM filter F1, and an extra portion of the optical fiber. The extra length processing unit 24 for processing the length is integrally provided, and is detachably accommodated in the housing 10. An optical fiber coated wire drawn from the outside can be fixed to the fiber fixing unit 40, and only the core wire drawn from between the coated wires is introduced into the extra length processing unit 24. Further, the mechanical splices MS1 to MS3 of FIG. 4 can be detachably fixed to the splice fixing portion 50. Further, the WDM filter F1 of FIG. 4 can be detachably fixed to the filter fixing portion 60. The price fixing part 50 and the filter fixing part 60 respectively correspond to the connector fixing means and the filter fixing means in the claims.

(Details of splice fixing part 50)
Next, details of the splice fixing unit 50 will be described. 6A and 6B are enlarged views of the splice fixing portion 50, where FIG. 6A is a front view of the splice fixing portion 50, FIG. 6B is a side view of the splice fixing portion 50, and FIG. 6C is a view from a different direction from FIG. It is a side view of the splice fixing part 50. As shown in each of these drawings, the splice fixing portion 50 includes a front fixing portion 51, a rear fixing portion 52, and three removal pieces 53 to 55.

  Among these, the front fixing part 51 is a front fixing means for fixing the front part of the mechanical splices MS1 to MS3. The front fixing portion 51 includes four flat front fixing plates 51a to 51d, and mechanical splices MS1 to MS3 can be held in three gaps between the front fixing plates 51a to 51d. it can. The rear fixing part 52 is a rear fixing means for fixing the rear part of the mechanical splices MS1 to MS3. The rear fixing portion 52 is arranged at a distance corresponding to the length of the mechanical splices MS1 to MS3 with respect to the front fixing portion 51, and the front fixing portion 51 holds the front portion of the mechanical splices MS1 to MS3. In such a state, the rear portions of the mechanical splices MS <b> 1 to MS <b> 3 are located on the rear fixing portion 52. The rear fixing portion 52 includes four plate-like rear fixing plates 52a to 52b arranged on the same straight line as the front fixing plates 51a to 51d of the front fixing portion 51, and these rear fixing plates 52a to 52b. Mechanical splices MS1 to MS3 can be sandwiched between 52b. Therefore, the front and rear of the mechanical splices MS1 to MS3 can be fixed by the front fixing portion 51 and the rear fixing portion 52, and the mechanical splices MS1 to MS3 can be securely held on the upper surface of the optical fiber tray 20. Thus, by enabling the three mechanical splices MS1 to MS3 to be fixed to the optical fiber tray 20, a new communication form in which optical fiber connection is performed using a larger number of mechanical splices MS1 to MS3 than before. However, a suitable optical receiver 1 can be constructed.

  The three removal pieces 53 to 55 are for removing the mechanical splices MS1 to MS3 from the splice fixing portion 50, and correspond to the removal means in the claims. These three removal pieces 53 to 55 are juxtaposed between the front fixing portion 51 and the rear fixing portion 52, and have a flat plate-like base portions 53a to 55a and a front side of the base portions 53a to 55a. Protrusions 53b to 55b projecting from the mechanical splices MS1 to MS3) are integrally provided. The base portions 53a to 55a are elastic pieces formed by providing notches in the optical fiber tray 20, and have a width (mechanical) substantially corresponding to the interval between the front fixing plates 51a to 51d and the rear fixing plates 52a to 52d. A width substantially corresponding to the splices MS1 to MS3). The protrusions 53b to 55b are formed in a substantially symmetrical shape on both the front and rear surfaces of the base portions 53a to 55a. It has a height that substantially corresponds to the gap formed between them.

  In such a configuration, as shown in FIG. 7A, when the mechanical splices MS1 to MS3 are fixed to the front fixing portion 51 and the rear fixing portion 52, the removal pieces 53 to 55 are provided behind the mechanical splices MS1 to MS3. To position. The mechanical splices MS1 to MS3 can be detached from the splice fixing portion 50 by operating the removal pieces 53 to 55 at positions corresponding to the mechanical splices MS1 to MS3 to be removed. Specifically, the base portions 53a to 55a are elastically deformed by pushing up the protruding portions 53b to 55b of the removal pieces 53 to 55 from the rear to the front (side toward the mechanical splices MS1 to MS3) with a finger or an arbitrary jig. The mechanical splices MS1 to MS3 are pushed forward. Therefore, the mechanical splices MS1 to MS3 can be easily and reliably removed, and the workability in the optical receiver 1 can be improved.

  In particular, since the base portions 53a to 55a are formed by providing the notches in the optical fiber tray 20 as described above, the removal pieces 53 to 55 can be very easily formed. That is, as another method for forming the removal pieces 53 to 55, for example, an opening is formed on the bottom surface of the optical fiber tray 20, and the removal piece formed separately from the optical fiber tray 20 around the opening. Although it is conceivable to attach 53 to 55 by heat welding, adhesion, or the like, in this embodiment, the removal pieces 53 to 55 are formed by simply cutting out the optical fiber tray 20, so that the formation is extremely simple. Can be done.

  Further, as shown in FIG. 6A, the three removal pieces 53 to 55 are not simply arranged in the same direction, but opposite to each other (the protrusions 53b and 55b of the removal pieces 53 and 55 at both ends are The protrusion 54b of the central removal piece 54 is arranged side by side on the rear fixing portion 52 side while it is located on the front fixing portion 51 side. For this reason, the protrusion parts 53b-55b are not adjacent between the adjacent removal pieces 53-55. Accordingly, even when a finger is accidentally placed on the adjacent removal piece 53-55 when the projections 53b-55b of any one of the removal pieces 53-55 are pushed with a finger or the like, the adjacent removal is performed. Since the protrusions 53b to 55b of the pieces 53 to 55 are not pushed, it is possible to prevent the mechanical splices MS1 to MS3 that are not intended from being accidentally removed. In other words, since the operation can be reliably performed even if the three removal pieces 53 to 55 are close to each other, the arrangement space of the removal pieces 53 to 55 can be saved.

(Details of filter fixing unit 60)
Next, details of the filter fixing unit 60 will be described. FIG. 8 is an enlarged view of the filter fixing unit 60, (a) is a front view of the filter fixing unit 60 when the WDM filter F1 is not fixed, and (b) is a front view of the filter fixing unit 60 when the WDM filter F1 is fixed. FIG. As shown in each of these drawings, the filter fixing portion 60 includes a pair of movable walls 61a and 62b. These movable walls 61a and 62b are arranged substantially in parallel with the outer wall 26 forming the optical fiber accommodating path 25 (corresponding to the accommodating space in the claims), and define the accommodating path 25 together with the outer wall 26. Thus, as shown in FIG. 8A, when the WDM filter F1 is not fixed, it extends so as to enter the accommodation path 25. Here, the movable walls 61a and 62b are elastic pieces integrally molded with the outer wall 26, and as shown in FIG. 8B, the movable walls 61a and 62b resist the elastic force of the movable walls 61a and 62b. The WDM filter F1 of FIG. 4 can be detachably fixed to the space formed at this time by pushing the openings 61a and 62b outward. Further, in this state, the WDM filter F1 is urged to the left in the drawing by the elastic restoring force of the movable walls 61a and 62b, so that the WDM filter F1 is not accidentally dropped from the accommodation path 25. In this way, by making it possible to fix the WDM filter 1 to the optical fiber tray 20, it is possible to construct the optical receiver 1 suitable for a new communication form in which signal separation is performed by a filter such as the WDM filter 1.

(Effect of Embodiment 1)
As described above, according to the first embodiment, since a larger number of mechanical splices MS1 to MS3 can be fixed to the optical fiber tray 20 by using the splice fixing unit 50, a larger number of mechanical splices MS1 to MS3 are used. Thus, it is possible to construct the optical receiver 1 suitable for a new communication form in which optical fiber connection is performed. Further, the mechanical splices MS1 to MS3 can be easily and reliably removed using the removal pieces 53 to 55, and the workability in the optical receiver 1 can be improved. In particular, since the base portions 53a to 55a are formed by providing notches in the optical fiber tray 20, it is very easy to form the removal pieces 53 to 55. Further, by arranging the removal pieces 53 to 55 in opposite directions, it is possible to prevent the mechanical splices MS1 to MS3 that are not intended to be accidentally removed and to arrange the removal pieces 53 to 55. Space can be saved.

[Embodiment 2]
Next, the specific content of Embodiment 2 which concerns on this invention is demonstrated in detail. The second embodiment relates to an optical receiver provided with a fixing means different from the first embodiment. However, unless otherwise specified, the configuration is the same as that of the first embodiment, and the same components as those of the first embodiment are denoted by the same reference numerals as those used in the first embodiment, if necessary. To do.

  9A and 9B are enlarged views of the splice fixing portion according to the second embodiment. FIG. 9A is a perspective view of the splice fixing portion when the mechanical splice is fixed, and FIG. 9B is a perspective view of the splice fixing portion when the mechanical splice is removed. It is a perspective view. As shown in each of these drawings, the splice fixing portion 70 corresponds to the connector fixing means in the claims, and includes a front fixing portion 71, a rear fixing portion 72, and a removal piece 73. ing. Each of the front fixing portion 71 and the rear fixing portion 72 is an elastic member having a substantially T-shaped side surface raised forward from the bottom surface of the optical fiber tray (not shown), and the bottom surface and the upper piece 71a of the optical fiber tray. The mechanical splices MS1 and MS2 can be detachably sandwiched between them and 72a. Here, two mechanical splices MS1 and MS2 can be fixed using one splice fixing portion 70, and three or more mechanical splices can be fixed by providing a plurality of splice fixing portions 70.

  The removal piece 73 corresponds to the removal means in the claims, and is formed as a substantially rectangular elastic piece raised from the bottom surface of the optical fiber tray toward the front. The removal piece 73 is disposed between the front fixing portion 71 and the rear fixing portion 72 so as to be along the longitudinal direction of the mechanical splices MS1 and MS2. Then, as shown in FIG. 9B, the removal piece 73 is directed to either the mechanical splice MS1 or MS2 (FIG. 9B shows an example directed to the mechanical splice MS1). By pushing and bending, the mechanical splices MS1 and MS2 can be pushed out by the removal piece 73, and the mechanical splices MS1 and MS2 can be detached from the splice fixing portion 70. Therefore, the mechanical splices MS1 and MS2 can be easily and reliably removed, and the installation workability of the optical receiver can be improved.

(Effect of Embodiment 2)
As described above, according to the second embodiment, the mechanical splices MS1 and MS can be easily and reliably removed using the removal piece 73, and the installation workability of the optical receiver can be improved.

[Embodiment 3]
Next, specific contents of the third embodiment according to the present invention will be described in detail. The third embodiment relates to an optical receiver provided with a fixing means different from the first embodiment. However, unless otherwise specified, the configuration is the same as that of the first embodiment, and the same components as those of the first embodiment are denoted by the same reference numerals as those used in the first embodiment, if necessary. To do.

  FIG. 10 is a front view of the splice fixing portion according to Embodiment 3, and FIG. 11 is a front view showing the positional relationship between the splice fixing portion and the mechanical splicer. The splice fixing portion 80 corresponds to the connector fixing means in the claims, and includes a front fixing portion 81, a rear fixing portion 82, and three removal pieces 83 to 85. The front fixing portion 81 and the rear fixing portion 82 are configured in substantially the same manner as the front fixing portion 51 and the rear fixing portion 52 of the first embodiment, respectively.

  Moreover, the three removal pieces 83-85 respond | correspond to the removal means in a claim, and are provided with the base parts 83a-85a and the projection parts 83b-85b. These removal pieces 83 to 85 are configured in substantially the same manner as 53 to 55 in the first embodiment except for the configuration specifically described, but unlike the first embodiment, the removal pieces 83 to 85 are in the longitudinal direction of the mechanical splices MS1 to MS3. They are arranged so as to be substantially orthogonal. The total length of each of the three removal pieces 83 to 85 is determined to be different from each other as L1 to L3 (L1 <L2 <L3). Specifically, as shown in FIG. 11, the removal piece 83 of the full length L1 has a base portion 84a that is mechanically connected to the removal piece 84 of the full length L2, such that the projection 83b is positioned behind the mechanical splice MS1. The removal piece 85 of the full length L3 is located at the rear of the splice MS1 and its protrusion 84b is located at the rear of the mechanical splice MS2. The portion 85b is formed so as to be located behind the mechanical splice MS3.

  Accordingly, when the removal piece 83 is pushed forward, only the mechanical splice MS1 can be removed by pushing up only the mechanical splice MS1 by the projection 83b. Further, when the removal piece 84 is pushed forward, the mechanical splice MS2 is pushed up by the projection 84b, and the mechanical splice MS1 is pushed up by the base portion 84a elastically deformed accordingly, and the mechanical splices MS1, MS2 are pushed up. Can be removed at the same time. Further, when the removal piece 85 is pushed forward, the mechanical splice MS3 is pushed up by the projecting portion 85b, and the mechanical splices MS1, MS2 are pushed up by the elastically deformed base portion 85a. All of MS3 can be removed at the same time.

(Effect of Embodiment 3)
As described above, according to the third embodiment, the mechanical splices MS1 to MS3 can be easily and reliably removed using the removal pieces 83 to 85, and the installation workability of the optical receiver can be improved. In particular, since a plurality of mechanical splices MS1 to MS3 can be removed simultaneously in a predetermined combination, the installation workability of the optical receiver can be improved.

[Modifications to Embodiment]
Although the embodiments of the present invention have been described above, the specific configuration and means of the present invention may be arbitrarily modified and improved within the scope of the technical idea of each invention described in the claims. Can do. Hereinafter, such a modification will be described.

(Regarding the field of application of the present invention)
The object of application of the present invention is not limited to the optical receiver as described above, but any device that can fix a communication cable such as an optical fiber storage box, an optical converter, and other optical fibers OF1 to OF6. The same applies to devices.

(About problems to be solved and effects of the invention)
First, the problems to be solved by the invention and the effects of the invention are not limited to the above-described contents, and the present invention solves the problems not described above or has the effects not described above. There are also cases where only some of the described problems are solved or only some of the described effects are achieved. For example, when adopting a signal transmission form different from the conventional one, even if it is not possible to fix all of the components, the fixability and attachment / detachment workability are slightly improved compared to the conventional optical receiver. As long as the object of the present invention is achieved.

(About splice fixing part)
The shape and position of the splice fixing portion are not limited to the illustrated positions. For example, in Embodiment 1, four or more mechanical splices can be fixed by increasing the combination of the front fixing part 51, the rear fixing part 52, and the three removal pieces 53 to 55 to four or more. Or the splice fixing | fixed part 50 can be formed in the arbitrary positions of a surplus length process part. The removal pieces 53 to 55 are not necessarily provided for all the mechanical splices. For example, the removal of the mechanical splices arranged on both sides can be easily performed regardless of the presence or absence of the removal pieces. May be provided with only the removal piece 54 corresponding to the mechanical splice arranged in the middle, and the removal pieces 53 and 55 on both sides may be omitted. . Further, the protrusions 53b to 55b and 83b to 85b are not necessarily required, and the removal pieces 53 to 55 are configured only by the base portions 53a to 55a and 83a to 85a, and the base portions 53a to 55a, 83a to 85a You may make it push up directly from back with a jig | tool.

(About the filter fixing part 60)
The shape and position of the filter fixing unit 60 are not limited to the illustrated positions. For example, in the first embodiment, by providing a plurality of filter fixing units 60, a plurality of WDM filters F1 can be fixed. Alternatively, the filter fixing unit 60 can be formed at an arbitrary position of the surplus length processing unit 24. Moreover, in order to facilitate the removal work for the filter fixing portion 60, a removal piece substantially the same as that described above can be provided. That is, a removal piece may be formed by cutting out the optical fiber housing path 25, and the removal piece may be pushed up from behind with a finger or a jig to push the WDM filter F1 forward.

  The present invention can be applied to an apparatus that needs to accommodate various optical fibers, and is useful for improving the workability of fixing mechanical splices and various filters.

It is a front view of the optical receiver which concerns on embodiment of this invention. It is a bottom view of the optical receiver of FIG. FIG. 2 is a front view of the optical receiver of FIG. 1 in a state where a cover portion is opened. It is a signal system diagram which shows notionally the transmission path of the signal in an optical receiver. It is a perspective view of an optical fiber tray. It is an enlarged view of a splice fixing part, (a) is a front view of the splice fixing part, (b) is a side view of the splice fixing part, (c) is a side view of the splice fixing part viewed from a different direction from (b). FIG. It is an enlarged view of a splice fixing | fixed part, (a) is a longitudinal cross-sectional view of the splice fixing | fixed part at the time of fixation of a mechanical splice, (b) is a longitudinal cross-sectional view of the splice fixing | fixed part at the time of removal of a mechanical splice. It is an enlarged view of a filter fixing part, (a) is a front view of the filter fixing part when the WDM filter is not fixed, and (b) is a front view of the filter fixing part when the WDM filter is fixed. It is an enlarged view of the splice fixing | fixed part which concerns on Embodiment 2, (a) is a perspective view of the splice fixing | fixed part at the time of fixation of a mechanical splice, (b) is a perspective view of the splice fixing | fixed part at the time of removal of a mechanical splice. . 10 is a front view of a splice fixing unit according to Embodiment 3. FIG. It is a front view which shows the positional relationship of a splice fixing | fixed part and a mechanical splicer. It is a perspective view of the conventional optical receiver in the state where the cover part was opened.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,100 Optical receiver 10,101 Housing | casing 11 Base part 12 Cover part 13 Pull-in port 20,103 Optical fiber tray 24,104 Extra length process part 25 Accommodating path 26 Outer wall 30,102 Photoelectric conversion unit 31 Connection terminal 40 Fiber fixation Part 50, 70, 80 Splice fixing part 51, 71, 81 Front fixing part 51a-51d Front fixing plate 52, 72, 82 Rear fixing part 52a-52b Rear fixing plate 53-55, 83-85 Detaching piece 53a-55a, 83a to 85a Base part 53b to 55b, 83b to 85b Protrusion part 60 Filter fixing part 60a, 60b Moving wall OF1 to OF6 Optical fiber MS1 to MS3 Mechanical splice F1 WDM filter

Claims (10)

A communication device including a storage tray for storing a plurality of communication cables,
In the storage tray,
A housing path for housing the plurality of communication cables;
A surplus length processing unit for processing surplus length portions of the plurality of communication cables;
A connection fixture fixing means for detachably fixing the cable connection means for connecting the plurality of communication cables to the communication device; and
A filter fixing means for detachably fixing a separation filter for separating the multiplexed first signal and second signal from each other to the communication device ;
Placing the containment path adjacent to the extra length processing section with a wall therebetween;
Arranging the filter fixing means in the accommodating path,
Communication equipment characterized by. A communication device including a storage tray for storing a plurality of communication cables,
In the storage tray,
A surplus length processing unit for processing surplus length portions of the plurality of communication cables;
A connection fixture fixing means for detachably fixing the cable connection means for connecting the plurality of communication cables to the communication device; and
A filter fixing means for detachably fixing a separation filter for separating the multiplexed first signal and second signal from each other to the communication device;
The filter fixing means is disposed on the opposite side of the connection fixture fixing means with the extra length processing portion interposed therebetween,
Communication equipment characterized by. A first communication cable for introducing the multiplexed first signal and second signal from the outside to the inside of the communication device, and the first signal and the second signal to the separation filter The second communication cable for introduction is mutually connected by the first cable connecting means,
A third communication cable for transmitting the first signal separated by the separation filter; and a fourth communication cable for outputting the first signal from the inside of the communication device to the outside. Connected to each other by the second cable connecting means, and
A fifth communication cable for transmitting the second signal separated by the separation filter; and a sixth communication cable for outputting the second signal from the inside of the communication device to the outside. In the case of connecting to each other by the third cable connecting means,
The connection fixture fixing means includes:
First connection fixture fixing means for fixing the first cable connection means;
Second connection fixture fixing means for fixing the second cable connection means;
Third connection fixture fixing means for fixing the third cable connection means;
The communication device according to claim 1, further comprising: The connection fixture fixing means has a removal means for removing the cable connection means from the connection fixture fixation means;
The communication device according to any one of claims 1 to 3, wherein The detaching means is disposed in the vicinity of the connection fixture fixing means and is elastically deformable toward the cable connection means fixed to the connection fixture fixation means;
The communication device according to claim 4 . Forming the removal means by forming a notch in the base surface of the storage tray;
The communication device according to claim 4 or 5 . The first connector fixing means, the second connector fixing means, and the third connector fixing means are arranged in parallel with each other, and the detaching means for each of them is arranged in opposite directions. Set up,
The communication device according to claim 6 . A plurality of the connecting fixture fixing means are arranged in parallel with each other, and the detaching means is arranged so as to extend between the cable connecting means fixed by each of the plurality of connecting fixture fixing means. ,
The communication device according to claim 5 . The first connector fixing means, the second connector fixing means, and the third connector fixing means are arranged side by side,
As the detaching means, first detaching means extending only to the cable connecting means fixed by the first connecting tool fixing means, and fixed by the first and second connecting tool fixing means. Second detaching means extending to the cable connecting means, and third detaching means extending to the cable connecting means fixed by the first to third connector fixing means are provided. ,
The communication device according to claim 5 . The elastic pieces partitioning the accommodating passage, by extending into the housing passage, to the formation of the filter fixing unit,
The communication device according to any one of claims 1 and 3 to 9 .

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