JP2008125331A - Indoor connection device and wire-laying plate - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an indoor connection device that can be used irrespective of the position of a wire-laying hole on a mounting surface, and to provide a wire-laying plate that is used together with the indoor connection device. <P>SOLUTION: On the rear of a housing 40 in the indoor connection device 4, there is a cable insertion recess 41m that communicates with a space in which a modular jack is stored and is open to the rear side and the lower side each. A LAN cable 2 and a power line 3 are drawn out to the rear side through each of the cable insertion recesses 41m, when the housing 40 is to be overlapped to a wire-laying hole W1 for mounting, and the LAN cable 2 is drawn out to the lower side through the cable insertion recess 41m, when the housing 40 is to be mounted at a position detached from the wire-laying hole W1, thereby making it available in either case. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an indoor connection device used for wiring straddling indoors and outdoors and a wiring plate used together with the indoor connection device.

  Conventionally, FTTH (Fiber To The Home) has been provided as a communication system using an optical fiber cable as a subscriber line (see, for example, Patent Document 1). This is because an optical fiber cable (optical subscriber line) wired from the public network to each home is connected to an optical subscriber line terminator (ONU: Optical Network Unit), and a terminal such as a telephone or personal computer in each home. The device is connected to the optical subscriber line terminator via a LAN cable. The optical subscriber line terminator performs mutual conversion between an optical signal transmitted through an optical fiber cable and an electrical signal transmitted through a LAN cable.

  As a form of wiring of the LAN cable, one shown in FIG. 14 has been proposed. In the wiring form shown in FIG. 14, an optical subscriber line terminator 1 installed outdoors by connecting an optical fiber cable (so-called drop cable) FC for drawing from an optical subscriber line connected to a public network, and a LAN cable. 2 and an indoor connection device 4 connected to the optical subscriber line termination device 1 through a power line 3. For connection between the optical fiber cable FC and the optical subscriber line terminating device 1, a well-known optical connector such as SC type or MU type can be used. Each of the LAN cable 2 and the power supply line 3 is drawn indoors through a through hole W1 that penetrates the wall material W constituting the mounting surface and communicates the indoor and the outdoor. Various terminal devices (not shown) such as telephones and personal computers installed indoors are connected to the indoor connection device 4 via the LAN cable 2. The power of the optical subscriber line termination device 1 is supplied from the indoor connection device 4 through the power supply line 3.

  The optical subscriber line terminating device 1 performs mutual conversion between an optical signal transmitted to the optical fiber cable FC and an electrical signal transmitted to the LAN cable 2. The optical subscriber line terminating device 1 is accommodated in a case 10 having waterproof properties so as to protect the optical subscriber line terminating device 1 from raindrops.

  The indoor connection device 4 is connected to the optical subscriber line terminating device 1 via the LAN cable 2 and is connected to a modular jack 43 to which a modular plug is connected, and a plug blade insertion port into which a plug blade of a power plug is inserted (see FIG. (Not shown) and an outlet 44 having a blade receptacle (not shown) that is in contact with the blade inserted through the blade insertion slot, one end of which is electrically connected to the blade receptacle, and the other end is a power plug. 44c provided with 44c.

  In the above configuration, in order to supply power to the optical subscriber line terminator 1, a plug 31 provided at one end of the power line 3 connected to the optical subscriber line terminator 1 is connected to an outlet. 44 and a power plug 44c is connected to an indoor outlet AC. Further, in order to connect the terminal device to the optical subscriber line terminating device 1, the modular jack 43 is provided at one end with the other end of the LAN cable 2 connected to the terminal device via a hub or a router. Connect the modular plug 21. Then, the terminal device is connected to the optical subscriber line termination device 1 via the indoor connection device 4. As described above, in the wiring configuration of FIG. 14, the optical fiber cable FC is not handled except for the operation of connecting the optical fiber cable FC to the optical subscriber line terminating device 1 arranged outdoors.

According to the above wiring form, the optical subscriber line termination device 1 is arranged outdoors, so that the work for handling the optical fiber cable FC can be completed only outdoors. Therefore, when working indoors, such as system construction and terminal equipment relocation, the fiber cable FC is not handled but only the LAN cable 2 is handled. Therefore, it is not necessary for the contractor to enter the room indoors, so that the workability and convenience are higher than when the optical fiber cable FC is pulled into the room.
JP 2002-217933 A

  Here, as the through hole W1, a dedicated one may be used, or a through hole for another purpose such as an air conditioner may be used.

  When a dedicated one is used, if the indoor connection device 4 having a cable insertion hole for introducing the LAN cable 2 opened on the rear surface is attached to the wall member W1 so as to overlap the insertion hole W1, the indoor connection device 4 inserts it. The hole W1 can be hidden.

  However, when the through hole for other purposes is also used, it is often impossible to attach the indoor connection device 4 so as to overlap the through hole W1. In such a case, since the indoor connection device 4 is attached at a position away from the through hole W1, the indoor connection device 4 in which the cable insertion hole is opened only on the rear surface cannot be used.

  The present invention has been made in view of the above reasons, and an object thereof is to provide an indoor connection device that can be used regardless of the position of the through hole on the mounting surface, and a wiring plate used together with the indoor connection device. There is to do.

  The invention of claim 1 is an indoor connection device that is installed indoors and is used to connect an indoor terminal device to a communication cable drawn in from the outdoors, and has a plug insertion slot into which a modular plug is inserted. At least one modular jack for connecting the modular plug inserted into the plug insertion port to a pre-connected communication cable, and a plug insertion hole for exposing the plug insertion port of the modular jack. The housing is provided with a cable insertion recess into which the communication cable connected to the modular jack is inserted, and the cable insertion recess opens on both the rear surface and the side surface of the housing. It is characterized by that.

  According to the present invention, when the housing is fixed in a form that is provided on the mounting surface and overlaps with the through hole through which the communication cable is inserted, the communication cable connected to the modular jack is led out from the cable insertion recess to the rear of the housing. When the housing is fixed at a position away from the through hole, the communication cable connected to the modular jack is led out from the cable insertion recess to the side of the housing and can be used in any case.

  According to a second aspect of the present invention, there is provided the plug blade according to the first aspect of the present invention, comprising: a blade receiver housed in the housing and in contact with the plug blade of the power plug; and a power supply means for energizing the blade holder; A plug blade insertion port through which is inserted is provided on the front surface of the housing.

  According to this invention, even when the AC adapter is integrated with the power plug and the size and shape are large, the plug blade is securely inserted into the plug blade insertion slot without interference between the mounting surface and the power plug. be able to.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the modular jack is provided in two.

  According to the present invention, for example, when a router installed indoors and connected to a subscriber line termination device is connected to a terminal device in a separate room via a communication cable drawn outdoors and introduced into a separate room, One modular jack is used to connect the subscriber line termination equipment installed outdoors and the input terminal of the router installed indoors, and the output terminal of the router installed indoors and the communication cable installed in a separate room. The other modular jack can be used for connection.

  The invention according to claim 4 is used when the housing of the indoor connection device according to any one of claims 1 to 3 is fixed so as to cover the through hole provided on the attachment surface and through which the communication cable is inserted. A through plate fixed to the surface and holding the housing, the mounting means for mounting on the mounting surface, the housing holding means for holding the housing, and the mounting frame for the existing wiring apparatus The two plate mounting screw portions, and a through hole that is provided between the plate mounting screw portions and communicates with the through hole and into which the communication cable introduced into the housing is inserted.

  According to the present invention, for example, when a through hole is not used due to a service cancellation, the blank cover for a general mounting frame is attached to cover the through hole or the trace of the through hole, thereby improving the appearance. can do.

  According to the first aspect of the present invention, since the cable insertion recesses into which the communication cable connected to the modular jack is inserted are opened on both the rear surface and the side surface of the housing, the communication cable is provided on the mounting surface. When fixing the housing so as to overlap the through hole to be inserted, lead the communication cable connected to the modular jack to the rear of the housing from the cable insertion recess, and to fix the housing at a position away from the through hole The communication cable connected to the modular jack is led out from the cable insertion recess to the side of the housing, and can be used in any case.

  According to the invention of claim 2, since the plug blade insertion port through which the plug blade is inserted is provided on the front surface of the housing, even when the AC adapter is integrated with the power plug and the size and shape are large. The plug blade can be reliably inserted into the plug blade insertion port without interference between the mounting surface and the power plug.

  According to the invention of claim 3, since two modular jacks are provided, for example, a router installed indoors and connected to a subscriber line termination device is connected via a communication cable drawn out outdoors and introduced into a separate room. When connecting to a terminal device in a separate room, one modular jack is used to connect the subscriber line terminator installed outdoors and the input terminal of the router installed indoors, and the output of the router installed indoors The other modular jack can be used for connection between the end and a communication cable introduced into a separate room.

  According to the invention of claim 4, since it has the two plate mounting screw portions similar to the mounting frame for the existing wiring apparatus, for example, when the through hole is not used due to service cancellation, By attaching the blank cover for the attachment frame, the through hole or the trace of the through hole can be covered and the appearance can be improved.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  This embodiment is an indoor connection device 4 used in the wiring system shown in FIG. 14, and the plug blade into which the plug blade of the power plug is inserted as shown in FIGS. 2 (a) to 2 (c). The housing 40 is provided with an insertion port 44a on the front surface, and two modular jacks 43 each having a plug insertion port 43a into which a modular plug is inserted and connected. Each of the modular plug and the modular jack 43 is, for example, of the RJ45 type. Hereinafter, the vertical and horizontal directions are based on FIG. 2A, and the horizontal direction in FIG.

  More specifically, the housing 40 includes a body 41 constituting the rear surface of the housing 40 and a cover 42 constituting the front surface of the housing 40, and has a rectangular parallelepiped shape as a whole. Each of the body 41 and the cover 42 is made of, for example, a thermoplastic resin.

  At the upper end of the front surface of the body 41, as shown in FIG. 3, there is provided an outlet housing recess 41a for holding an outlet body 46 holding two blade receiving blocks 45. As shown in FIG. 4, each blade receiving block 45 is mechanically connected to the blade receiving spring 45a by elastically holding the plug blade inserted from the plug blade insertion port 44a and, for example, by screwing. The terminal plate 45b that is electrically coupled, the terminal screw 45c that is screwed into a screw hole (not shown) penetrating the terminal plate 45b vertically, and the head of the terminal screw 45c and the terminal plate 45b A pressing plate 45d that sandwiches one core wire (not shown) of the cord 44b between the terminal plate 45b and the terminal plate 45b. Each component of the blade receiving block 45 is made of a conductive material such as metal. That is, the terminal plate 45b, the terminal screw 45c, and the holding plate 45d constitute a known screw terminal. Each terminal board 45b has two coupling protrusions 45e protruding downward.

  The outlet body 46 is made of a thermosetting resin. As shown in FIG. 5, the outlet body 46 protrudes forward from the front surface of the main body 46a and the blade receiving block 45 between the main body 46a as viewed from the front. And an insulating wall 46b for ensuring insulation. Further, the main body 46a has a blade receiving hole 46c for storing the rear end portion of the blade receiving spring 45a, a screw insertion hole 46d for inserting a leg of the terminal screw 45c, and a coupling protrusion 45e for the terminal plate 45b. Are coupled to the blade receiving block 45 in one-to-one correspondence. The blade receiving block 45 is held by the outlet body 46 by, for example, press-fitting the coupling protrusion 45e into the coupling hole 46e.

  Further, as shown in FIGS. 6A to 6C, in the cover 42, a space in which the blade receiving block 45 and the outlet body 46 are housed is formed between the front surface of the body 41 and the upper end portion of the rear surface. An outlet storing recess 42a is provided. As shown in FIG. 7, an outlet cover 47 made of a thermosetting resin and having a pair of plug blade insertion openings 44a extending through the front and rear is attached in the outlet housing recess 42a. The outlet cover 47 has a main body portion 47a that is flat in the front and rear and provided with a plug blade insertion port 44a, and two convex portions 47b that protrude rearward from the left and right end portions of the main body portion 47a and face left and right. , 47c. A rectangular area surrounding the opening of the plug blade insertion opening 44a on the front surface of the outlet cover 47 is a boss portion 47d that protrudes forward from the other parts. An outlet exposure hole 40a through which the boss portion 47d is inserted is provided through the front and rear. That is, the housing 40 in this embodiment includes a body 41 and a cover 42, an outlet body 46, and an outlet cover 47. Instead of using the outlet body 46 and the outlet cover 47 as described above, the body 41 and the cover 42 are each formed of a thermosetting resin so that the body 41 directly holds the blade receiving block 45 and the cover 45 has a plug blade. An insertion port 44a may be provided. Further, for connection between the outlet block 45 and the cord 44b, other known means such as crimping may be used instead of the screw terminal as described above.

  Further, on the rear surface of the cover 42, a holding protrusion 42b that is long on the left and right is provided rearwardly on the lower side of the outlet storing recess 42a. The outlet cover 47 includes, for example, the inner surface of the outlet storing recess 42a and the upper surface of the holding protrusion 42b. Is held by the cover 42 by being fitted in a space surrounded by.

  Here, the cord 44b connected to the blade receiving block 45 is pulled out through a cord insertion hole 40c formed in the left end portion of the lower surface of the housing 40 as shown in FIG. Cord insertion grooves 41c and 42c that are opened downward and form a cord insertion hole 40c when the body 41 and the cover 42 are coupled to each other are provided at the lower left ends of the front surface of the body 41 and the rear surface of the cover 42, respectively. ing. The inner surfaces of the lower ends of the cord insertion grooves 41c and 42c are inclined so as to increase the inner diameter of the cord insertion hole 40c downward, whereby the contact pressure between the opening edge of the cord insertion hole 40c and the cord 44b is increased. It becomes low and it is hard to generate | occur | produce disconnection in the cord 44b. A power plug 44c is provided at the other end of the cord 44b. When the power plug 44c is connected to an indoor outlet AC, an optical subscriber line terminating device through the blade receiving block 45 and the power line 3 is provided. 1 can be fed. That is, the power plug 44c and the cord 44b are power means in the claims.

  In addition, on the rear surface of the cover 42, an inverted L-shape that extends continuously upward above the cord insertion groove 42c, extends to the left along the lower end of the outlet housing recess 42a, and communicates with the cord insertion groove 42c at the lower end. A through-hole recess 42d having a shape is provided.

  As shown in FIG. 8, on the front surface of the body 41, a cord insertion recess 41b communicating with the cord insertion groove 41c at the lower end is provided above the cord insertion groove 41c. Furthermore, on the upper side of the cord insertion recess 41b, an inclined portion 41d whose front surface is inclined backward and downward, and protrudes forward from the front surface of the body 41 and extends to the left and right at the lower end of the outlet housing recess 41a. An inverted L-shaped code guide convex portion 41e extending downward is provided. A space through which the cord 44b can be inserted is formed between the front surface of the inclined portion 41d of the body 41 and the bottom surface of the cord insertion recess 41b and the bottom surface of the passage recess 42d of the cover 42. The cord 44b connected to the blade receiving block 45 is guided onto the inclined portion 41d by the code guide convex portion 41e, guided into the cord insertion concave portion 41b along the inclined portion 41d, and is further corded by the inner surface of the cord insertion concave portion 41b. It is guided to the insertion groove 41c. Furthermore, on both the left and right sides of the cord insertion groove 41c, cord positioning convex portions 41f that are columnar and that position the cord 44b during construction project forward. A receiving hole 42f into which the right cord positioning convex portion 41f is inserted when the body 41 and the cover 42 are coupled is provided in the upper right of the cord insertion groove 42c on the rear surface of the cover 42 (upper left in FIG. 6A). Yes. The left cord positioning convex portion 41 f is inserted into the through-wire concave portion 42 d when the body 41 and the cover 42 are coupled.

  In addition, on the front surface of the body 41, two modular jack holding recesses 41h each holding one modular jack 43 are provided side by side on the right side of the cord insertion recess 41b. Each modular jack 43 is held in the modular jack holding recess 41h, for example, by fitting, with the plug insertion opening 43a facing downward. Further, a cable insertion hole 41 i is provided in the body 41 at the lower side of the portion extending from the left and right of the cord guide convex portion 41 e and to the right side of the portion extending up and down. Between 41i and the modular jack holding recess 41h, a cable insertion groove 41j communicating with the cable insertion hole 41i and the modular jack holding recess 41h is provided. Each LAN cable 2 as a communication cable connected to the modular jack 43 is introduced into the cable insertion hole 41i through the cable insertion groove 41j and pulled out to the rear side of the housing 40 through the cable insertion hole 41i. For example, a modular plug 21 is provided at the other end of the LAN cable 2 whose one end is connected to the modular jack 43, and this modular plug 21 is used for connection with other devices such as the optical subscriber line terminating device 1.

  Further, on the rear surface of the cover 42, a portion facing the modular jack holding recess 41h is provided with a modular jack receiving recess 42h that forms a space for storing the modular jack 43 between the modular jack holding recess 41h. A cable insertion groove 42j that forms a space through which the LAN cable 2 connected to the modular jack 43 is inserted is formed between the cable insertion groove 41j and the cable insertion groove 41j. The front end portion of the modular jack holding recess 41h of the body 41 and the entire modular jack storage recess 42h of the cover 42 are opened downward, and when the body 41 and the cover 42 are coupled, the modular jack holding recess 41h and the modular A plug insertion hole 40b for exposing the plug insertion port 43a of the modular jack 43 is formed between the jack housing recess 42h.

  In the body 41, screw insertion holes 41k are provided in the front-rear direction at the upper left, upper right, and lower left ends, the left side of the left cable insertion groove 41j, and the right side of the right cable insertion groove 41j. ing. A screw hole 42k is provided in each part corresponding to the screw insertion hole 41k of the body 41 on the rear surface of the cover 42, and the body 41 and the cover 42 are connected to the screw of the body 41 from the rear as shown in FIG. These are coupled to each other by a total of five coupling screws Sa inserted into the insertion holes 41k and screwed into the screw holes 42k of the cover 42. Further, on the rear surface of the body 41, around the screw insertion hole 41k, a screw storage recess 41l for storing the head of the coupling screw Sa is provided.

  Here, as shown in FIGS. 6C and 7, in the cover 42, the inner surface of the cord insertion groove 42 c and the inner surface of the cable insertion groove 42 j each have two triangular wave shapes when viewed from the left and right directions. The tension stop protrusion 42e is provided. In a state where the body 41 and the cover 42 are coupled, the gap between the inner surface of the cord insertion groove 41c of the body 41 and the tension stop projection 42e is smaller than the outer diameter of the cord 44b, and the inner surface of the cable insertion groove 41j of the body 41 And the tension stop projection 42e is smaller than the outer diameter of the LAN cable 2. That is, the cord 44b connected to the blade receiving block 45 and the LAN cable 2 connected to the modular jack 43 are fixed so that the tension stoppers 42e bite into the insulation coating. Thereby, even when the cord 44b and the LAN cable 2 are pulled from the outside of the housing 40, the connection between the cord 44b and the blade receiving block 45 and the connection between the modular jack 43 and the LAN cable 2 are hardly damaged. Further, the fixing by the tension stopper 42e is performed by tightening the coupling screw Sa when the body 41 and the cover 42 are coupled. Therefore, when a means such as a bracket for fixing the cord 44b or the LAN cable 2 is separately provided. Compared with the workability.

  Further, as a feature of the present embodiment, as shown in FIG. 9, a cable insertion hole 41i is opened on the bottom surface of the rear surface of the body 41 and a lower end is opened below the body 41 on the rear side of the cord insertion groove 41c. A cable insertion recess 41m is provided. As a result, the LAN cable 2 connected to the modular jack 43 can be pulled out to the lower side of the housing 40 (side in the claims) through the cable insertion recess 41m in addition to being pulled out rearward through the cable insertion hole 41i. The cable insertion recess 41m has an inverted L shape with the upper end extending above the cable insertion hole 41i and avoiding the modular jack holding recess 41h at the lower end. On the bottom surface of the cable insertion recess 41m, the left end portion (the right end portion in FIG. 9) and the central portion in the vertical direction are formed by the rear surface of the inclined portion 41d, and are inclined rearward downward. The front and rear positions of the bottom surface of the cable insertion recess 41m are substantially the same as the cable insertion groove 41j at the upper end portion, and are positioned at the front side of the upper end portion at the lower end portion. It is connected to. Further, in the body 41, on the rear side of the inclined portion 41d, the cable 41 is protruded rightward (leftward in FIG. 9) from the inner surface on the left side (right side in FIG. 9) of the cable insertion recess 41m, and the bottom surface of the cable insertion recess 41m. A cable pressing protrusion 41n is provided to hold the LAN cable 2 therebetween. The depth dimension of the cable insertion recess 41m (that is, the front and rear dimensions) is larger than the outer diameter (eg, 6 mm) of the LAN cable 2 so that the two LAN cables 2 can be inserted into the cable insertion recess 41m. The upper and lower dimensions of the left end portion (right end portion in FIG. 9) and the left and right dimensions of the lower end portion of the cable insertion recess 41m are each twice or more the outer diameter of the LAN cable 2. In addition, the left and right dimensions of the upper end of the cable insertion recess 41m are four times or more the outer diameter of the LAN cable 2, and the depth dimension of the upper end of the cable insertion recess 41m is two or more times the outer diameter of the LAN cable 2. is there. As a result, the two LAN cables 2 can be folded back into a U shape with a radius of curvature large enough that the transmission quality does not deteriorate in the cable insertion recess 41m. With the above configuration, in this embodiment, the modular plug insertion opening 43a and the cable insertion recess 41m can be opened to the lower side, which is the same side.

  Here, this embodiment is hold | maintained at the wiring plate 5 fixed to the wall material W, as shown to Fig.1 (a), when attaching to the wiring hole W1 of the wall material W so that it may overlap. For example, a screw insertion hole (not shown) as an attachment means is provided in the front and rear of the wiring plate 5, and the wall member W is screwed into the wall member W through the screw insertion hole. Screwed and fixed. As shown in FIG. 10, in the center portion of the wiring plate 5 when viewed from the front, a wiring port 5 a that communicates with the wiring hole W <b> 1 and through which the LAN cable 2 or the like is inserted is provided in the front-rear direction. Here, as shown in FIG. 8, on the front surface of the body 42, hook recesses 41o are respectively provided at a total of three locations, that is, the upper left and upper right of the outlet housing recess 42a and the position sandwiched by the cable insertion groove 41j. A claw insertion hole 41p is provided in the front and rear direction at a position away from the upper inner surface of the hook recess 41o on the bottom surface of each hook recess 41o. The upper left and upper right hook recesses 41o of the outlet storage recess 42a communicate with the outlet storage recess 42a at the lower ends. L-shaped hooking claws 5b whose front end portions are bent upward are projected forward at three locations corresponding to the claw insertion holes 41p on the front surface of the wiring plate 5. In holding the through wire plate 5 in the present embodiment, each hooking claw 5b is introduced from the rear of the housing 40 into the hooking recess 41o through the hook insertion hole 41p. Then, the housing 40 is held on the wiring plate 5 by the upper ends of the hooking claws 5b engaging the bottom surface of the hooking recess 41o. That is, the hooking claw 5b is a housing holding means in the claims.

  More specifically, the wiring plate 5 includes a cylindrical portion (not shown) whose inner surface constitutes the through-hole 5a and an annular flange portion 51a projecting outward from the front end of the cylindrical portion. The connecting member 51 has a rectangular shape when viewed from the front, is flat in the front and rear, and is provided with a storage recess 52a in which the flange portion 51a of the wiring member 51 is stored in the central portion when viewed from the front and the storage recess 52a. The center portion of the bottom surface of the main body member 52 includes a main body member 52 having a through hole 52b through which a tube portion of the wire member 51 is inserted. The upper two of the hooking claws 5 b are respectively provided on the main body member 52, and the lower one is provided on the flange portion 51 a of the wiring member 51.

  Furthermore, cylindrical plate mounting screw portions 5c each having a thread groove on the inner surface project forward from both upper and lower ends sandwiching the passage opening 5a on the front surface of the main body member 52 of the passage plate 5. The protruding dimension of the plate mounting screw portion 5b is 2 mm, for example. The dimension shape of each plate mounting screw portion 5c and the positional relationship between the plate mounting screw portions 5c are the same as the plate mounting screw portion included in an existing mounting frame (not shown) for a wiring apparatus defined in JIS C 8375, for example. It is matched. Specifically, the pitch (distance between the centers of the screw holes) of the plate mounting screw portion 5c is 101 mm, and the inner diameter of the screw hole of each plate mounting screw portion 5c is 3.5 mm. As a result, when the through hole W1 of the wall material W becomes unnecessary due to cancellation or change of the communication service, the through member 51 is removed and the through hole W1 of the wall material W is closed with a putty or the like. Then, as shown in FIG. 11 (b), by attaching the blank plate 6 to the wiring plate 5 that is generally used for a wiring device and is usually attached to the mounting frame, the trace of the passage hole W1 being blocked is shown. It can be covered to improve the appearance.

  More specifically, the blank plate 6 includes a rectangular frame-shaped plate frame 61 and a plate cover 62 that is coupled to the front side of the plate frame 61 and covers the plate frame 61 when viewed from the front as shown in FIG. Become. Screw insertion holes (not shown) are provided in the front and rear of the plate frame 61 at positions corresponding to the plate mounting screw portions 5c at both the upper and lower ends, and the plate mounting screw portions 5c are inserted through the screw insertion holes. The plate frame 61 is screwed and fixed to the wiring plate 5 by mounting screws Sb that are screwed together. Further, three coupling holes 61 a are provided in the left and right ends of the plate frame 61 so as to be arranged vertically. In addition, coupling protrusions (not shown) that can be elastically deformed so as to displace the rear end portions to the left and right are respectively provided in the corresponding positions on the rear surface of the plate cover 62, and rearward of the respective coupling protrusions. A coupling claw (not shown) protrudes inward in the left-right direction at the end. In connecting the plate cover 62 and the plate frame 61, if each coupling protrusion of the plate cover 62 is inserted into the coupling hole 61a while being elastically deformed, each coupling protrusion has a coupling claw on the rear side of the plate frame 61. The plate cover 62 is coupled to the plate frame 61 by returning to the plate frame 61 when the coupling claw is engaged with the rear surface of the plate frame 61. Here, the outer shape of the housing 40 and the main body member 52 of the wiring plate 5 as seen from the front is the same as that of the blank plate for general-purpose wiring devices defined in JIS C 8316 (specifically, 70 mm × 120 mm). The main body member 52 of the wiring plate 5 is completely covered by the blank plate 6 when viewed from the front.

  The body 41 is provided with an avoidance hole 41q in the front-rear direction for avoiding interference between the body 41 and the plate mounting screw portion 5c of the wiring plate 5. Each avoidance hole 41q has an oblong shape that is long in the vertical direction so as to avoid interference with the plate attachment screw portion 5c in the process of attachment to the wiring plate 5. The lower avoidance hole 41q opens in the bottom surface of the left modular jack holding recess 41h. Further, a directly attached recess 41r communicating with the outlet holding recess 41a is provided at the lower end above the outlet holding recess 41a on the front surface of the body 41, and the upper avoidance hole 41q opens to the bottom surface of the directly attached recess 41r. ing.

  Further, a directly attached hole 41s that is smaller than the avoidance hole 41q and communicated with the avoidance hole 41q at the lower end is provided on the upper side of the upper avoidance hole 41q. Here, when the present embodiment is attached at a position distant from the through hole W1, that is, when the through plate 5 is not used, the head can be inserted into the avoidance hole 41q and not inserted into the direct attachment hole 41s. A direct mounting screw (not shown) that can be inserted into the direct mounting hole 41s and that has a leg portion is used. More specifically, the head of the direct screw screwed into the wall material W is introduced into the direct concave portion 41r through the upper avoidance hole 41q, and the leg portion of the direct screw is introduced into the direct attachment hole 41s. Then, the housing 40 is attached to the wall material W by the head of the direct mounting screw engaging the bottom surface of the direct mounting recess 41r. That is, the upper avoidance hole 41q and the direct attachment hole 41s function as a well-known daruma hole as a whole.

  According to the above configuration, the LAN cable 2 connected to the modular jack 43 is drawn out through the cable insertion recess 41m that is opened both downward and rearward of the housing 40. Therefore, as shown in FIG. It can be used for both the case where it is attached to the through hole W1 of the wall material W and the case where the housing 40 is attached at a position away from the through hole W1 of the wall material W as shown in FIG. It becomes. 1 (a) and 1 (b), the same reference numerals are given to configurations common to the example of FIG. Further, in the example of FIG. 1B, the case 10 housing the optical subscriber line terminating device 1 (see FIG. 12) outdoors is away from the through hole W1 of the wall material W. A wiring molding 7 that covers the LAN cable 2 and the power supply line 3 with the wire hole W1 is used.

  Further, by providing two modular jacks 43, one modular jack 43 is used for connection between the indoor device and the optical subscriber line terminating device 1, and the other modular jack 43 is used to connect to the indoor device. The connected LAN cable 2 can be pulled out outdoors. For example, as shown in FIG. 12, one modular jack 43 connected to the optical subscriber line terminating device 1 is connected to the input side of the router 8 having the HUB function, and the output side of the router 8 is connected to the other modular jack. It can be connected to the modular jack 22 disposed in a separate room (for example, another floor) via the LAN cable 2 connected to the jack 43 and led out outdoors. In FIG. 12, the same reference numerals are given to configurations common to the example of FIG. 14. In the usage form of FIG. 12, the terminal device can be easily connected to the router 8 simply by connecting the terminal device (not shown) to the modular jack 22 in the separate room, and it is necessary to prepare a plurality of routers 8. Absent. In the example of FIG. 12, two LAN cables 2 are used for connection between the modular jack 22 in the separate room and the modular jack 43 of the present embodiment, and these LAN cables 2 are connected to each other as an optical subscriber line terminating device 1. Are connected to each other via a relay modular jack 23 housed in a common case 10. If the modular jack 43 and the relay modular jack 23 of the indoor connection device 4 are interposed in this way, it becomes easy to recover when one of the LAN cables 2 is damaged.

  By the way, when there is no plan to make the connection as shown in FIG. 12, only one modular jack 43 and one plug insertion hole 40b for connection with the optical subscriber line terminating device 1 are required as shown in FIG. become. Therefore, when manufacturing the body 41 and the cover 42, at least the lower end portion of either the left or right (for example, left side) modular jack holding recess 41h or the modular jack storage recess 42h is formed by nesting (not shown) in a mold. As shown in FIG. 13, when the housing 40 of the indoor connection device 4 having only one modular jack 43 is manufactured, a common mold can be used simply by removing the nesting.

  Here, an AC adapter may be integrated with the plug 31 for supplying power to the optical subscriber line terminating device 1, and in such a case, the size and shape of the plug 31 are increased. Therefore, when the plug blade insertion port 44a is provided on the side surface of the housing 40 (a surface directed in the direction along the mounting surface), the plug 31 is mounted on the mounting surface before the plug blade reaches the plug blade insertion port 44a. It is possible that the plug blade of the plug 31 cannot be inserted into the plug blade insertion port 44a. On the other hand, in the present embodiment, the plug blade insertion port 44a is open on the front surface of the housing 40, so that even if the AC adapter is integrated with the plug 31, the plug 31 and the mounting surface interfere with each other. The plug blade can be reliably inserted into the plug blade insertion port 44a.

(A) (b) is explanatory drawing which shows an example of the usage pattern of this embodiment, respectively, (a) (b) shows a usage pattern which is mutually different. (A)-(c) is a figure which respectively shows the same as the above, (a) is a front view, (b) is a bottom view, (c) is a right view. It is a front view which shows the principal part in the state which attached the outlet body and the blade receiving block to the body in the same as the above. It is a perspective view which shows a blade receiving block same as the above. It is a perspective view which shows an outlet body same as the above. (A)-(c) is a figure which shows a cover same as the above, respectively, (a) is a rear view, (b) is a bottom view, (c) is AA sectional drawing of (a). It is a perspective view which shows the state which attached the outlet cover to the cover same as the above. It is a perspective view which shows a body same as the above. It is a rear view which shows the same as the above. It is a front view which shows the wiring plate used with the same as the above. (A) is a front view which shows the state which attached the plate frame to the wiring plate of FIG. 10, (b) is a front view which shows the state which attached the blank plate to the wiring plate of FIG. It is explanatory drawing which shows a usage form same as the above. It is a bottom view which shows another form same as the above. It is explanatory drawing which shows the usage condition of an indoor connection apparatus.

Explanation of symbols

2 LAN cable (communication cable in claims)
3 Power Line 4 Indoor Connection Device 5 Line Plate 5a Line Port 5b Hook Claw (Housing Holding Means in Claims)
5c Plate mounting screw portion 6 Blank plate 40 Housing 40b Plug insertion hole 43 Modular jack 43a Plug insertion port 44a Plug blade insertion port 44b Cord (Power supply means in claims)
44c Power plug (Power means in claims)
45 Blade receiver block (Blade holder in claims)
W Wall material W1 Through hole

Claims (4)

An indoor connection device that is installed indoors and is used to connect indoor terminal equipment to a communication cable drawn from the outside,
At least one modular jack having a plug insertion slot into which the modular plug is inserted and connecting the modular plug inserted into the plug insertion slot to a pre-connected communication cable;
A housing having a plug insertion hole that exposes a plug insertion port of the modular jack, housing the modular jack, and being attached to a mounting surface;
The housing is provided with a cable insertion recess into which a communication cable connected to the modular jack is inserted,
The indoor connection device, wherein the cable insertion recess is opened on both a rear surface and a side surface of the housing.   A blade receptacle housed in the housing and in contact with the plug blade of the power plug and a power supply means for energizing the blade receptacle, and a plug blade insertion port through which the plug blade in contact with the blade receptacle is inserted is provided on the front surface of the housing The indoor connection device according to claim 1, wherein the indoor connection device is provided.   The indoor connection device according to claim 1, wherein two modular jacks are provided. It is used when the housing of the indoor connection device according to any one of claims 1 to 3 is fixed to the mounting surface so as to cover a through hole through which the communication cable is inserted. A wiring plate that holds
Between the mounting means for mounting on the mounting surface, the housing holding means for holding the housing, the two plate mounting screw portions similar to the mounting frame for the existing wiring apparatus, and the plate mounting screw portion A wiring plate, comprising: a wiring port provided through which a communication cable introduced into the housing through the wiring hole is inserted.

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