JP4933905B2 - Case for cable - Google Patents

Description

  The present invention relates to a cable case, and more particularly, to a cable case that can eliminate the limitation of the number of cables to be pulled out.

  2. Description of the Related Art Conventionally, a connecting portion or a branching portion of a cable installed outdoors is internally provided in a case so that the connecting portion or parts of the cable is not eroded by rainwater or the like.

As this type of cable case, for example, a drop closure (case for cable) is provided at a branch point of an optical fiber cable which has been increasing in recent years, and a drop cable branched from the optical fiber cable is drawn out from the inside and installed. By doing so, providing an optical fiber to each home is performed. When the number of optical fiber providing destinations increases, a drop cable is appropriately added and laid to the home providing destination (for example, see Patent Document 1).
JP 2004-163718 A Japanese Patent Laid-Open No. 10-10390

  In such a conventional cable case, a through-hole is prepared so that a predetermined number of lead-out cables can be inserted in advance into a closing member that closes an opening for drawing the cable to the outside. For example, as shown in FIG. 12, in the case of the drop closure 100, a plurality of through holes 111 through which the drop cable can be inserted are prepared in the closing member 102 that closes both ends of the sleeve 101.

  However, in such a blocking member 100, when the number of drop cables that need to be pulled out increases more than expected, it is necessary to replace the type with a large number of openings in the through hole 111. However, there was a problem that the optical fiber line of the corresponding route had to be stopped.

  Further, in such a structure of the blocking member 100, this replacement work must be performed every time the number of through holes 111 prepared in the existing blocking member 100 is insufficient. There was a problem that the optical fiber line had to be stopped.

  Therefore, the present invention is not limited to the number of cables that can be branched out from the blocking member, and the number of cables that can be branched is not limited. It is an object of the present invention to provide a cable case that makes it possible to easily perform the extension work of the lead-out cable by using the same closing member without inconvenience other than the installation destination.

  1st invention of the case for cables which solves the said subject is a case installed in the connection location of a cable to construct, and a branch location, Comprising: The opening part which draws a cable outside, and obstruct | occludes this opening part A passage space that allows the drawing cable to be inserted and pulled out to be several times larger than the opening area required for inserting one of the drawing cables. It is characterized by being formed.

  In the present invention, a path space that can be opened in the closing member that closes the opening at several times the cross-sectional area of the extraction cable is prepared, and a plurality of the extraction cables are not inserted one by one. Can be pulled out of the case all at once. Therefore, it is possible to draw out more cables than can be branched, and it is possible to increase the number of lead-out cables without replacing the blocking member, in other words, without stopping the corresponding cable system.

  According to a second invention of the cable case that solves the above-mentioned problem, in addition to the specific matter of the first invention, the closing member has a slit through which a plurality of lead-out cables can be inserted as a route space of the lead-out cable. One or two or more are formed.

  In this invention, a plurality of lead-out cables can be arranged in parallel in the slit of the closing member and can be pulled out from the case. Therefore, the number of cables that can be branched or more can be drawn out from the slit, and the number of lead-out cables can be increased as appropriate.

  According to a third aspect of the cable case for solving the above-mentioned problems, in addition to the specific matter of the second aspect, the slit extends inward from the outer peripheral end of the closing member to connect the drawing cable to the closing member. It is formed so that it can enter from the outer peripheral edge side.

  In this invention, it can draw out from the inside of a case by inserting so that a several lead-out cable may be arranged in parallel from the opening edge part of the outer periphery edge side of the slit of a closure member, and making it an insertion state. Therefore, it is possible to pull out more than the number of cables that can be branched, including existing cables, from the slit, and remove the existing cables from the conventional blocking member with a cutter or the like without stopping the cable system. Can be inserted and pulled out from the case.

  According to a fourth aspect of the cable case for solving the above-mentioned problem, in addition to the specific matter of the second or third aspect, the closing member has a slit opened with a substantially linear width of the lead-out cable, The slit is filled with a gap filling material adjacent to the lead-out cable.

  In this invention, it is possible to close the gap of the slit of the closing member inserted into the insertion member by inserting the lead-out cable and allowing the gap filling material to enter. Therefore, it is possible to prevent rainwater and the like from entering the case from the slit gap and eroding internal components.

  According to a fifth aspect of the cable case for solving the above-mentioned problems, in addition to the specific matter of the second or third aspect, the closing member is made of an elastically deformable material, and the slit is used as the slit. The facing faces to be formed are in close contact with each other.

In this invention, the wall surface (facing face) that defines the slit of the closing member that is inserted into the drawing cable is brought into close contact with the peripheral surface of the drawing cable or between the facing faces, thereby closing the slit. . Therefore, it is possible to prevent a gap from being formed between the wall surfaces of the slits and intrusion of rainwater or the like into the case without any limitation and erosion of internal components.
For the closing member, it is preferable to select a sponge having discontinuous cells as the elastic deformation material, and it is preferable to form the slit so as to extend in the vertical direction.

  According to a sixth aspect of the cable case for solving the above problems, in addition to the specific matters of the second to fifth aspects, the bottom portion of the slit is formed so as to be inclined toward the outside. It is characterized by being.

  According to the present invention, rainwater or the like that has entered the slit of the closing member that can put the lead-out cable into the inserted state can flow out to the outside through the inclined bottom portion of the slit. Therefore, it is possible to prevent rainwater or the like that has entered between the wall surfaces of the slit from flowing into the case as it travels along the bottom surface.

  According to a seventh aspect of the cable case for solving the above problems, in addition to the specific matter of the first aspect, the closing member is a sub-opening that allows a plurality of lead-out cables to be inserted as a route space of the lead-out cable. The sub-opening portion is provided with a cloth-like member that closes in a direction of narrowing a space through which the lead-out cable can be inserted.

  In this invention, it can draw out from the inside of the case through a plurality of lead-out cables in a space that is squeezed (opened) by the cloth-like member in the sub-opening of the closing member. Therefore, more than the number of cables that can be branched can be drawn out from the restriction space formed by the cloth-like member, and the number of drawn cables can be increased as appropriate.

  In addition to the specific matters of the seventh invention, the eighth invention of the cable case that solves the above-described problem is such that the cloth-like member continues from the portion facing the sub opening to the throttle space through which the lead-out cable is inserted. The lead-in cable entry path is formed, and the closing member is formed with a lead-out cable entry path that continues from the outer peripheral edge to the sub-opening.

  In the present invention, a plurality of lead-out cables can be inserted from the opening end portion of the approach path located at the outer peripheral edge of the closing member and positioned in the sub-opening portion, and similarly, the cloth-like member in the sub-opening portion The lead-out cable can be pulled out from the case in the inserted state by being inserted into the entrance path and being positioned in the throttle space by the cloth-like member. Therefore, it is possible to draw out more than the number of branch cables that can be branched, including existing cables, from the diaphragm space of the cloth-like member, and remove existing cables from the conventional closing member using a cutter without stopping the cable system. It can be removed and pulled out from the case through the restriction space of the cloth-like member.

  According to a ninth aspect of the cable case for solving the above problems, in addition to the specific matter of the first aspect, the closing member is a sub-opening that allows a plurality of lead cables to be inserted as a route space of the lead cables. The sub-opening has an elastic deformation that circulates inward from the portion facing the sub-opening to define a space into which the lead-out cable can be inserted. A circulating member made of a possible linear material is provided.

  In the present invention, the linear material of the circulating member can be deformed into the opening space of the circulating member installed in the sub-opening portion of the closing member, and the linear material of the circulating member can be pulled out from the case through the plurality of lead cables. Therefore, more than the number of cables that can be branched can be drawn out from the opening space in the circulating member, and the number of lead cables can be increased as appropriate.

  According to a tenth aspect of the cable case for solving the above-mentioned problems, in addition to the specific matters of the ninth aspect, the closing member is formed with an entrance path for the lead-out cable continuous from the outer peripheral edge to the sub-opening. It is characterized by that.

  In this invention, a plurality of lead-out cables can be inserted and positioned in the sub-opening from the opening end of the approach path located on the outer peripheral edge of the closing member, and the linear shape of the rotating member in the sub-opening By inserting the material between the linear materials while elastically deforming the material and allowing the material to enter and be positioned in the opening space in the circulating member, the lead-out cable can be inserted and pulled out from the case. Therefore, it is possible to draw out more than the number of cables that can be branched, including existing cables, from the open space in the circulating member, and the existing cables can be removed from the conventional blocking member by a cutter without stopping the cable system. It can be removed and pulled out from the case through the opening space in the circulating member.

  According to an eleventh aspect of the cable case for solving the above problems, in addition to the specific matter of the ninth or tenth aspect, the rotating member is made of a strip-shaped linear material, and the outer peripheral region is located on the inner side. The belt-like linear material is formed so that the outer surface of the outer peripheral side region on the outer peripheral side is the inner surface of the inner peripheral side region on the inner peripheral side. It is formed so as to be in surface contact.

  In this invention, the strip-like linear material of the rotating member protrudes toward the inner side while being in surface contact with each other. For example, when the closing member is installed on the side surface, the rainwater or the like from between the strip-like linear material in surface contact Without intruding into the case without limitation, it can be dropped outside through the outer peripheral surface. Accordingly, it is possible to prevent rainwater and the like from entering the case from between the linear materials of the circulating member and eroding the internal components and the like.

  According to a twelfth aspect of the cable case for solving the above-described problems, in addition to the specific matters of any of the first to eleventh aspects, a facing shielding member is disposed inside the closing member. In addition, a drain hole for rainwater is opened on the lower surface between the shield member and the shield member is formed with an opening through which the lead-out cable is inserted.

  In this invention, the cable drawn out to the outside of the closing member can be drawn out also in the opening of the shielding member, and rainwater or the like entering the inside of the closing member can further enter the inside. While preventing by a shielding member, the rainwater etc. can be flowed out from the punch hole between shielding members. Therefore, it is possible to prevent rainwater or the like that has entered inside the closing member from entering the case and eroding the internal components.

  As described above, according to the present invention, a plurality of lead cables can be pulled out from the case all at once from the slits and sub-openings of the closing member, and more than the number of cables that can be branched can be pulled out from the case. Therefore, it is possible to perform the extension work of the lead-out cable without causing trouble to the user of the existing cable, such as stopping the cable system for replacing the closing member.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, the best embodiment of the invention will be described with reference to the drawings. 1 to 3 are views showing an example of a drop closure to which a first embodiment of a cable case according to the present invention is applied.

  1, the drop closure 10 includes, for example, an optical fiber cable F (see FIGS. 2 and 3) installed between utility poles, and a drop cable f (FIG. 2) branched from the optical fiber cable F. , See FIG. 3), and is designed to provide an optical fiber to each home by laying the drop cable f. That is, the drop cable f constitutes a drawer cable.

  The drop closure 10 includes a sleeve 11 formed in a square cylindrical shape, a closing member 12 that closes both ends (openings) 11 a of the sleeve 11, and various parts positioned between the closing members 12. A base metal fitting 13 that functions as a base to be installed, a holding metal fitting 14 that holds and fixes the optical fiber cable F drawn into the interior, and a hanging metal fitting 15 that is hung and supported by a hanging line laid between power poles. The opening / closing slit 21 extending in the length direction is formed in the center of the lower surface of the sleeve 11 so that the inside can be opened and closed, and the side of the opening / closing slit 21 is suspended downward. The facing portion 22 is closed by a bolt 23 and a nut 24 so as to be closed. The bolt 23 can be screwed into the nut 24 by being inserted into the through hole 22a formed in the facing portion 22. Further, the sleeve 11 is configured to liquid-tightly close the opening / closing slit 21 by sandwiching the packing 25 between the facing portions 22, and a liquid (not shown) is provided around the closing member 12 to provide liquid. Closely closed.

  Here, in the drop closure 10, the fusion tray 27 and the optical coupler tray 28 are fixed on the base metal 13, and the core of the optical fiber cable F (optical fiber) and the core of the drop cable f that are held and fixed by the gripping metal 14. Are prepared so that the drop cable f can be added by fusing and connecting the wires with the fusing tray 27 and branching the core of the optical fiber cable F with the optical coupler (not shown) with the optical coupler tray 28. ing.

  As shown in FIGS. 2 and 3, the closing member 12 of the drop closure 10 includes a plurality of upper insertion slits 31 (eight in this embodiment) that are open at the upper end surface and extend downward. In addition, a plurality of (six in this embodiment) lower insertion slits 32 that open to the lower end surface and extend upward are arranged in parallel, and the insertion slits 31 and 32 are substantially the same as the diameter of the drop cable f. Open with the same width.

  Thereby, the insertion slits 31 and 32 are opened by several times the opening area necessary for insertion of the drop cable f, and a plurality of drop cables f can be inserted all at once in an adjacent state. Further, the insertion slits 31 and 32 are provided with a drop closure by inserting more drop cables f than can be branched from the optical fiber cable F into the inside through the opening on the outer peripheral surface side of the closing member 12. The drop cable f which is branched and added by the optical coupler tray 28 can be similarly drawn out from the drop closure 10.

  For this reason, the drop closure 10 does not replace the closing member 12, in other words, temporarily removes the existing drop cable f (without stopping it), adds the necessary drop cable f, and drops the drop cable f. f can be inserted into the empty insertion slits 31 and 32 and pulled out to the outside.

  Further, the closing member 12 is formed in parallel with the middle of the lower insertion slit 32, and similarly formed with an insertion slit 33 for a trunk cable that opens to the lower end surface and extends upward. The insertion slit 33 is opened with substantially the same width as the diameter of the optical fiber cable F.

  Accordingly, the insertion slit 33 for the trunk cable can be pulled out by inserting the existing optical fiber cable F into the inside through the opening on the outer peripheral surface of the closing member 12 so as to be inserted therethrough.

  Therefore, for example, even in the case of the existing drop closure 100 shown in FIG. 12, by removing the existing drop cable f and optical fiber cable F from the through holes 111 and 112 by cutting the closing member 102 with a cutter or the like, The drop cable f can be pulled out from the insertion slits 31 and 32 without stopping the optical fiber system, regardless of whether the optical fiber system is installed or not, without being stopped. Can do. In addition, the drop closures 10 and 100 need only replace the closing member 102 with the closing member 12 of this embodiment when the sleeve 11 is common.

  In addition, the insertion slits 31 to 33 allow the rainwater or the like to enter the drop closure 10 without any restriction by filling (entering) the opening space with a filler (gap filling material) 35 such as putty. Liquid tightness is ensured so that there is no. The insertion slits 31 to 33 may be liquid-tight by filling a sealing member made of a rubber material having substantially the same shape as the internal space (same width as the drop cable f) instead of the filler 35. Needless to say, it is good.

  Further, the upper insertion slit 31 is formed in an inclined surface with the bottom surface 31a descending toward the outside, and even if rainwater or the like enters between the filler 35, it is transmitted toward the outside and dropped. By doing so, liquid tightness is improved. Even if the lower insertion slit 32 or the trunk cable insertion slit 33 is in contact with the filler 35, rainwater or the like can enter the lower surface of the sleeve 11 and be dropped.

  As a result, this drop closure 10 can also prevent rainwater or the like from entering the interior and eroding the fusion tray 27, the optical coupler tray 28, etc., and can be handled in the same manner as the conventional drop closure 100. Can do.

  As described above, in the present embodiment, a plurality of drop cables f can be inserted into the insertion slits 31 and 32 of the closing member 12 all at once and pulled out from the drop closure 10, and an optical fiber is inserted into the trunk cable insertion slit 33. The cable F can be inserted and pulled out from the drop closure 10, and more drop cables f that can be branched from the optical fiber cable F can be similarly pulled out from the drop closure 10. Therefore, by using the closing member 12, it is not necessary to stop the entire system of the optical fiber cable F for replacement of the closing member, and the drop cable f can be appropriately connected without causing trouble to the user of the existing drop cable f. Expansion work can be performed.

  Next, FIG. 4 and FIG. 5 are views showing an example of a drop closure to which the second embodiment of the cable case according to the present invention is applied. Here, since the present embodiment is configured in substantially the same manner as the above-described embodiment, the same reference numerals are given to the same configurations and the characteristic portions will be described (the same applies to other embodiments described below). ).

  4 and 5, the closing member 40 is installed so as to close both ends 11a of the sleeve 11 of the drop closure 10, similarly to the closing member 12 of the above-described embodiment. By using a sponge with discontinuous cells having elastic deformation performance, the cut surface can be made to follow the surface shape of the member that is pressed, and the enclosed space prevents moisture from passing through the front and back. Can be defined.

  The closing member 40 has a trunk cable insertion slit 33, an upper insertion slit 41 extending from the inside to the upper end surface in close contact with each other, and similarly, the wall surfaces facing each other are in close contact with each other. A plurality of lower insertion slits 42 extending from one side to the lower end surface are arranged in parallel.

  Accordingly, the insertion slits 41 and 42 can be opened with an area through which a plurality of drop cables f can be inserted, and the plurality of drop cables f are adjacent to each other in the same manner as the closing member 12 of the above-described embodiment. It can be inserted in the same state and pulled out from inside the drop closure 10, and more drop cables f can be added than the number that can be branched from the optical fiber cable F, and the existing drop cables f are stopped. Without replacement, the existing closure member 102 or the like can be replaced and pulled out from the drop closure 10.

  Further, the insertion slits 41 and 42 can be brought into close contact with each other so as to fill the gap by deforming the wall surfaces facing each other so as to follow the peripheral surface of the drop cable f. The lowermost cut edge 41a is formed on the wall surface descending toward the outside.

  Thereby, the insertion slits 41 and 42 do not allow rainwater or the like to enter the wall surfaces facing each other indefinitely, and the rainwater or the like that penetrates can be dripped while being transmitted to the outside. Is secured.

  Thus, in this embodiment, the same effect as the above-mentioned embodiment can be obtained, and in addition to this, the liquid of the drop closure 10 can be obtained without filling a filler or the like between the wall surfaces of the insertion slits 41 and 42. Denseness can be ensured. Therefore, the work of adding the drop cable f can be performed more easily.

  Here, as another aspect of the above-described embodiment, the case where the insertion slits 31 to 33, 41, and 42 extending in the vertical direction are formed in the closing members 12 and 40 will be described as an example, but the present invention is not limited thereto. For example, it may be formed such that a plurality of side insertion slits that open to both end faces and extend sideways are arranged in parallel, and even in the case of this side insertion slit, the shape is lowered toward the outside. It is preferable to form it.

  Next, FIGS. 6-8 is a figure which shows an example of the drop closure to which 3rd Embodiment of the case for cables which concerns on this invention is applied.

  6 and 7, the drop closure 50 is provided with a closing member 52 so as to close both end portions 11a of the sleeve 11 as in the above-described embodiment, and an optical fiber cable F is attached to the closing member 52. A trunk cable insertion slit 33 that can be pulled out and pulled out from the drop closure 50 while ensuring liquid-tightness by the filler 35 is formed, and a plurality of slits are positioned above the trunk cable insertion slit 33. A sub-opening 55 is formed which opens in a large area so that the drop cable f can be inserted and pulled out.

  As shown in FIG. 8, the sub-opening 55 is provided with a cloth member 56 that is made of a purse-cloth structure and has an opening. The cloth member 56 pulls a string 57 for adjusting the opening area. By being tied, the opening space S can be narrowed according to the number of inserted / drawn drop cables f. The cloth member 56 is internally provided with an elastic ring 56a on the outer periphery, while the sub-opening 55 has a rib shape 55a that protrudes inward so that the elastic ring 56a can be fitted into two locations on the outer peripheral surface. 55b is formed, and the elastic ring 56a is fitted and positioned between the rib shapes 55a and 55b, whereby the cloth member 56 can be installed in the sub-opening 55.

  Further, the closing member 52 includes a first communication slit 58 that is formed so as to reach the sub opening 55 downward from the upper end surface, and the wall surfaces are in close contact with each other. The elastic ring 56a is also formed with a second communication slit 59 that continuously communicates from the outer periphery into the opening space S.

  As a result, the closing member 52 removes the cloth member 56 from the sub-opening 55 and releases the string 57, so that the drop cable f enters the opening space S in the cloth member 56 from the outer periphery via the communication slits 58 and 59. After that, the cloth member 56 is again fitted into the sub opening 55 and the opening space S is squeezed with the string 57 to be dropped from the inside of the drop closure 50 to the outside. The cable f can be pulled out. That is, the communication slits 58 and 59 constitute an entry path for the drop cable f.

  For this reason, the drop closure 50 adds the necessary drop cable f without replacing the closing member 52, in other words, without temporarily removing the existing drop cable f (without stopping), and the drop cable 50 f can be inserted into the opening space S in the cloth member 56 of the sub-opening 55 and pulled out to the outside.

  Further, the drop closure 50 is provided with a shielding member 62 that closes both end portions 11 a of the sleeve 11 inside the closing member 52, and the shielding member 62, as with the closing member 52, is connected to the optical fiber cable F. A trunk cable insertion slit 33 that is inserted and ensures liquid-tightness by the filler 35, and a sub opening that is located above the trunk cable insertion slit 33 and that allows a plurality of drop cables f to be inserted in a large area. An opening 65 and a first communication slit 68 in close contact with each other from the upper end surface to the sub-opening 65 are formed, and between the closing member 52 and the shielding member 62, A drain port (opening hole) 66 through which rainwater or the like that has entered flows out is formed by cutting the packing 25.

  Here, in the closing member 52, the rib shapes 55a and 55b on the inner peripheral surface of the sub-opening 55 are divided in the circumferential direction, and in particular, the innermost portion of the cloth member 56 is separated by separating the lowermost portion. Rainwater or the like that has entered the sub opening 55 can be discharged to the outside. Further, the cloth member 56 is formed between the cloth materials 56b produced so that the second communication slits 59 overlap with each other, and a surface fastener that can be joined / separated is provided between the cloth materials 56b to open a gap. May be prevented.

  As a result, the closing member 52 is closed so that the wall surfaces of the first communication slit 58 are in close contact with each other, and the second communication slit 59 of the cloth member 56 of the sub-opening 55 is overlapped. In addition to being able to prevent this to some extent, the rainwater that has entered slightly can be prevented from entering the interior by the shielding member 62 and can be dropped from the drain port 66 or the like.

  As described above, in this embodiment, similarly to the above-described embodiment, the inside of the opening space S of the cloth member 56 installed in the sub-opening 55 of the closing member 52 and the shielding member 62 through the communication slits 58, 59, and 68. A plurality of drop cables f can be inserted into the sub-opening 65 and can be pulled out from the drop closure 50 all at once, and the opening space S of the cloth member 56 is squeezed by the string 57 and is unnecessary. The part can be narrowed down. Therefore, by using the closing member 52 and the shielding member 62, it is not necessary to stop the entire system of the optical fiber cable F for replacement of the closing member, and without causing trouble to the user of the existing drop cable f. The drop cable f can be added as appropriate.

  Next, FIGS. 9-11 is a figure which shows an example of the drop closure to which 4th Embodiment of the case for cables which concerns on this invention is applied.

  9 and 10, the closing member 72 is installed together with the shielding member 62 so as to close both ends 11a of the sleeve 11 of the drop closure 50, like the closing member 52 of the above-described embodiment. 72 is formed with a trunk cable insertion slit 33 through which the optical fiber cable F can be inserted and pulled out from the drop closure 50 while ensuring liquid-tightness by the filler 35. A rotating member 76 that can reduce the area of the opening space S by rotating in a truncated cone shape is installed in the sub-opening 55 that is located on the top of the sub-opening 55 and opens in a large area so that a plurality of drop cables f can be pulled out. Has been.

  As shown in FIG. 11, the rotating member 76 defines an opening space S into which the drop cable f can be inserted inward by spirally rotating an elastically deformable band-shaped material (linear material) 76 a. The outer peripheral side region 76b of the belt-like material 76a is formed so as to enter the inner peripheral side region 76c and come into surface contact with the inner peripheral side region 76c, thereby forming a truncated cone shape that spirals around and protrudes inward. Has been.

  As a result, the orbiting member 76 enters the inward slit 79 (between the band-shaped material 76a) from the outer peripheral end portion thereof, inserts the drop cable f while slightly elastically deforming the band-shaped material 76a, and enters inward. By making it, it can be made the state penetrated in the opening space S defined in the center vicinity.

  For this reason, the closing member 72 removes the rotating member 76 from the sub opening 55 and makes the drop cable f enter the internal opening space S from the outer peripheral end portion to be inserted therethrough, and then again the sub opening portion. By fitting the circumferential member 76 into 55, the drop cable f can be pulled out from the drop closure 50. At this time, when a large amount of the drop cable f is inserted into the opening space S defined by the circulating member 76, the strip-shaped material 76 a comes into contact with the outer peripheral surface of the drop cable f, thereby opening the opening space S. It is possible to maintain a state in which the drop cable f is inserted by expanding.

  Therefore, the drop closure 50 adds the required drop cable f without replacing the closing member 72, in other words, without temporarily removing the existing drop cable f (without stopping), and the drop cable f. Can be inserted into the opening space S in the rotating member 76 of the sub opening 55 and pulled out to the outside.

  Here, since the orbiting member 76 circulates in a state in which the belt-like material 76a overlaps the inner peripheral side region 76c with the outer peripheral side region 76b, it is possible to prevent rainwater and the like from entering without limitation to some extent. The shielding member 62 can reliably prevent rainwater that has entered slightly from entering the interior, and can be dropped from the drain port 66 or the like.

  Thus, in this embodiment, the same effect as the above-mentioned embodiment can be obtained, and by using the closing member 72 and the shielding member 62, the user of the existing drop cable f can be appropriately used without causing trouble. Expansion work of the drop cable f can be performed.

  Here, in the present embodiment, the rotating member 76 that is rotated so that the belt-like material 76a is overlapped is installed in the sub opening 55 of the closing member 72, but the present invention is not limited to this. Since it has, you may install what formed the circular truncated cone-shaped elastic wire material material in the shape of a truncated cone. However, since the distance of the slit between the elastic wire materials becomes long, it is advantageous to configure as in this embodiment.

  Although one embodiment of the present invention has been described so far, it is needless to say that the present invention is not limited to the above-described embodiment, and may be implemented in various forms within the scope of the technical idea.

It is a figure which shows an example of the drop closure which applied 1st Embodiment of the case for cables which concerns on this invention, and is a see-through | perspective front view which shows the schematic structure. It is a top view which shows the structure of the closure member of the principal part. It is a cross-sectional enlarged front view which shows the structure of the closure member of the principal part. It is a figure which shows an example of the drop closure to which 2nd Embodiment of the case for cables which concerns on this invention is applied, and is a top view which shows the structure of the obstruction | occlusion member of the principal part. It is a cross-sectional enlarged front view which shows the structure of the closure member of the principal part. It is a figure which shows an example of the drop closure which applied 3rd Embodiment of the case for cables which concerns on this invention, and is a top view which shows the structure of the obstruction | occlusion member of the principal part. It is a cross-sectional enlarged front view which shows the structure of the closure member of the principal part. It is a figure which shows the principal part components installed in the closure member, (a) is the top view, (b) is a partial longitudinal cross-sectional view which shows the state attached to the closure member. It is a figure which shows an example of the drop closure which applied 4th Embodiment of the case for cables which concerns on this invention, and is a top view which shows the structure of the obstruction | occlusion member of the principal part. It is a cross-sectional enlarged front view which shows the structure of the closure member of the principal part. It is a figure which shows the principal part components installed in the closure member, (a) is the top view, (b) is a partial longitudinal cross-sectional view which shows the state attached to the closure member. It is a perspective view which shows the prior art.

Explanation of symbols

  10, 50 …… Drop closure 11 …… Sleeve 11a …… Both ends 12, 40, 52, 72 …… Closing member 13 …… Base fitting 14 …… Grip fitting 15 …… Suspension fitting 21 …… Opening / closing slit 22 …… Face-to-face portion 27 …… Fusing tray 28 …… Optical coupler tray 31, 41 …… Upper insertion slit 31a …… Bottom surface 32,42 …… Lower insertion slit 33 …… Trunk insertion slit 35 …… Filler 41a …… Cut edge 55, 65 …… Sub-opening 55a, 55b …… Rib shape 56a …… Elastic ring 56 …… Cloth member 57 …… String 58, 59, 68 …… Communication slit 62 …… Shielding member 66 …… Drain port 76 ... Circumference member 76a ... Band-shaped material 76b ... Outer peripheral region 76c ... Inner peripheral region Area 79 …… Surrounding slit F …… Optical fiber cable f …… Drop cable S …… Open space

Claims (3)

It is a case that is installed at the connection point or branch point of the cable to be installed,
An opening for drawing the cable to the outside, and a closing member made of an elastically deformable material made of a sponge of discontinuous cells that closes the opening,
The closing member is formed so that one or two or more slits forming a path space through which a plurality of lead-out cables are inserted and pulled out in parallel are extended in the up-down direction, and form the slits. A cable case, wherein the cables are formed in close contact with each other before the lead-out cable is inserted.
2. The cable case according to claim 1 , wherein the slit extends inward from an outer peripheral edge of the closing member so that the lead-out cable can enter from the outer peripheral edge of the closing member. . The cable case according to claim 1, wherein a bottom portion of the slit is formed to be inclined toward the outside.

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