JP4991509B2 - Focusing joint - Google Patents

Description

  The present invention relates to a focusing joint that starts up a plurality of wires such as electric power and communication from the ground to the ground.

  Conventionally, when wiring such as electric power and communication is started up on the ground along the side of a structure such as a utility pole from a conduit buried in the ground, the ground part is a steel pipe arranged along the side of the structure. It is protected by passing through.

  In this case, a joint for connecting a plurality of buried pipes to a plurality of steel pipes is generally prepared for each wiring.

  However, when steel pipes and joints are provided for each wiring in this way, the appearance of the periphery of structures such as utility poles deteriorates, and if the space for installation is small, the steel pipes and joints may not be provided. .

In order to solve such a problem, in Patent Document 1, the pipes are gathered into one by a stainless steel joint and fixed along the side of a structure such as a utility pole, thereby enabling collective management. In addition, a wiring protection method that has a good appearance is disclosed.
JP 2004-236434 A

  However, since the joint of Patent Document 1 described above is fixed to the structure by fastening the fixing frame portion with a fixing band, if the outer peripheral surface on the side along the structure is uneven, It was supposed to be installed diagonally.

  As described above, when the joint is attached obliquely to the structure, there is a possibility that the sheath tube for starting up cannot be inserted.

  Then, this invention aims at providing the focusing joint which can be attached along the side surface of a structure.

  In order to achieve the above-mentioned object, the focusing joint of the present invention is a standing joint that bundles a plurality of buried sheath pipes that house the wiring and are buried in the ground, and guides the wiring to the ground along the side surface of the structure. A focusing joint to be connected to the sheath pipe, the bottom plate portion having a plurality of sleeve portions into which the plurality of buried sheath tubes are fitted, the rising cylinder portion to which the rising sheath tube is fitted, and the bottom plate portion A tapered side surface part for guiding the inserted wiring to the rising cylinder part, and an outer peripheral surface of the rising cylinder part, a lower end of the outer peripheral surface of the tapered side part, or an outer periphery of the bottom plate part The surface is characterized by being positioned on substantially the same straight line at least at one place as viewed in the axial direction of the rising cylinder portion.

  In addition, a constriction portion that abuts the end portion of the rising sheath pipe is formed at the base of the rising cylindrical portion with respect to the tapered side surface portion, and the side of the tapered side surface portion along the side surface of the structure is formed. The outer peripheral surface is inclined in a direction away from the central axis of the rising cylindrical portion from the constricted portion to the bottom plate portion, and the lower end of the outer peripheral surface of the tapered side portion is the outer peripheral surface of the rising cylindrical portion and the It can be set as the structure located on a substantially identical straight line in at least one place seeing in the axial direction of a standing cylinder part.

  Furthermore, the base of the rising cylinder portion with respect to the tapered side surface portion is formed with a constricted portion that abuts the end portion of the rising sheath tube, and the side of the tapered side surface portion along the side surface of the structure is formed. The outer peripheral surface is formed in parallel with the axial direction of the upright cylindrical portion, and an upright wall portion having a thickness substantially the same as the depth of the constricted portion is provided on the periphery of the bottom plate portion, and the upright wall And the outer peripheral surface of the upright wall portion of the bottom slab portion is at least as viewed in the axial direction of the outer peripheral surface of the upright tube portion and the upright tube portion. It can be set as the structure located on the substantially same straight line in one place.

  And it is set as the structure by which the recessed part fitted to the outer surface of the said structure is provided in the outer peripheral surface along the side surface of the said structure of the said standing cylinder part, the said taper-shaped side part, and the said bottom plate part. it can.

  Thus, the focusing joint of the present invention is inserted from the bottom plate portion having a plurality of sleeve portions into which a plurality of buried sheath tubes are fitted, the rising cylinder portion to which the rising sheath tubes are fitted, and the bottom plate portion. A tapered side surface part for guiding the wiring to the rising cylinder part, and an outer peripheral surface of the rising cylinder part, and a lower end of the outer peripheral surface of the tapered side part or an outer peripheral surface of the bottom plate part, It is located on substantially the same straight line when viewed in the axial direction.

  Therefore, the upper and lower two portions of the outer peripheral surface of the rising cylinder portion and the lower end of the outer peripheral surface of the tapered side surface portion or the outer peripheral surface of the bottom plate portion abut on the side surface of the structure, thereby along the side surface of the structure. Can be mounted in parallel.

  In addition, at the base of the rising cylindrical portion with respect to the tapered side surface portion, a constricted portion that abuts the end portion of the rising sheath tube is formed, and the outer peripheral surface on the side along the side surface of the structure of the tapered side surface portion is Inclined in the direction away from the central axis of the rising cylinder part from the constricted part to the bottom plate part, the lower end of the outer peripheral surface of the tapered side part is substantially the same as the outer peripheral surface of the rising cylinder part and the axial direction of the rising cylinder part It is set as the structure located on the same straight line.

  Accordingly, with an extremely simple configuration, the upper and lower two portions of the outer peripheral surface of the rising cylinder portion and the lower end of the outer peripheral surface of the tapered side surface portion abut on the side surface of the structure, thereby along the side surface of the structure. Can be attached.

  Furthermore, a constriction part that abuts the end part of the rising sheath pipe is formed at the base of the rising cylindrical part with respect to the tapered side part, and the outer peripheral surface on the side along the side of the structure of the tapered side part is The upright tube portion is formed in parallel to the axial direction, and an upright wall portion having a thickness substantially equal to the depth of the constricted portion is provided on the periphery of the bottom plate portion, and the upright wall portion is a lower end of the tapered side surface portion. The outer peripheral surface of the upright wall portion of the bottom slab portion is configured to be positioned on substantially the same straight line as viewed in the axial direction of the outer peripheral surface of the rising cylindrical portion and the vertical cylindrical portion.

  Therefore, with an extremely simple configuration, the upper and lower portions of the outer peripheral surface of the rising cylinder portion and the outer peripheral surface of the bottom slab portion are in contact with the side surface of the structure so that they can be attached along the side surface of the structure. it can.

  And since the recessed part which fits the outer surface of a structure is provided in the outer peripheral surface along the side of the structure of a standing cylinder part, a taper-shaped side part, and a bottom slab part, internal space is used effectively. However, the mounting direction with respect to the structure can be defined.

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

  First, the whole structure of the buried pipe standing structure C provided with the focusing joint 3 of this invention is demonstrated using FIG.

  As shown in FIG. 2, the buried government standing structure C of the present embodiment is a bent pipe 41 as a plurality of buried sheath pipes that are buried in the ground by storing wiring such as electric power and communication. And the rising sheath pipe 21 that brings the wiring together along the side surface of the utility pole 11 as a structure and leads it to the ground, and the focusing joint 3 that aggregates the bent pipes 41,. It is equipped with.

  In this manner, the concrete sheath 13 is placed around the upright sheath pipe 21 connected to the upper part of the focusing joint 3 and the plurality of bent pipes 41... Connected to the lower part.

  The bent pipe 41 as the buried sheath pipe is formed in a cylindrical shape by a resin such as vinyl chloride and is buried in the ground 12 in order to store and protect the wiring buried in the ground 12.

  In addition, since the vicinity of the center of the bent pipe 41 is bent at 90 °, the bent pipe 41 is connected to the end of a sheath pipe (not shown) embedded in parallel to the ground surface 12a and is stored in the sheath pipe. Is formed so as to rise substantially perpendicular to the ground surface 12a.

  Then, the raised upper ends of the plurality of bent pipes 41,... Are inserted into the plurality of sleeves 34,... Provided on the bottom plate portion 31 of the focusing joint 3, and are fixed by an adhesive. .

  The buried sheath tube is not limited to the bent tube 41 described above, and any tube tube may be used as long as it can be accommodated and started up. For example, a flexible tube that can be bent can be used.

  Further, the rising sheath pipe 21 is formed by a cylindrical steel pipe having a diameter larger than that of the above-described curved pipe 41 in order to collectively protect a plurality of wirings standing on the ground. It is fixed by a metal band (not shown).

  In addition, the lower end 21a of the rising sheath tube 21 is inserted into the rising cylindrical portion 32 of the focusing joint 3 and is fixed by an adhesive.

  1 and 3, the focusing joint 3 of the present embodiment includes a plurality of sleeve portions 34,... Into which a plurality of curved tubes 41,. A bottom plate portion 31, a rising cylinder portion 32 into which the rising sheath tube 21 is inserted, and a tapered side portion 33 that guides the wiring inserted from the bottom plate portion 31 to the rising cylinder portion 32. .

  This bottom plate portion 31 has sleeve portions 34,... In circular insertion holes 312... That are evenly arranged at square apex positions in a main body portion 310 formed in a thick disk shape with resin or the like. -Is attached and formed.

  The sleeve portion 34 includes an inner tube 341 that is inserted into the insertion hole 312 and an outer tube 342 that is fitted to the outside of the inner tube 341.

  The inner pipe 341 is formed of a resin or the like into a cylindrical shape having an outer diameter substantially the same as the inner diameter of the insertion hole 312, and the upper end is opened in a bowl shape and bonded to the main body 310. Therefore, it cannot be removed from the main body 310 and is fixed substantially perpendicular to the main body 310.

  A rubber O-ring 343 is fitted to the base from which the inner tube 341 protrudes downward from the main body 310, and the gap between the inner tube 341 and the main body 310 and the outer tube 342 and the main body 310 are separated from each other. The gap is stopped.

  Further, the outer tube 342 is formed in a cylindrical shape having an inner diameter substantially the same as the outer diameter of the inner tube 341 by resin or the like, and is fitted to the outer side of the inner tube 341 up to an annular protrusion provided on the inner surface. It is glued. An embedded sheath tube 41 having substantially the same diameter as the inner tube 341 can be inserted from the protrusion provided on the inner surface of the outer tube 342 to the distal end side.

  Further, the rising tube portion 32 is formed in a cylindrical shape having an inner diameter substantially the same as the outer diameter of the rising sheath tube 21 by resin or the like, and a constricted portion 321 having a reduced diameter of the cylinder is formed at the lower end. Is provided.

  The constricted portion 321 is formed by reducing the inner diameter of the rising cylindrical portion 32 to be equal to or larger than the thickness of the rising sheath tube 21 in order to make the lower end 21 a of the rising sheath tube 21 abut. These are integrally connected to a tapered side surface portion 33 described later.

  Further, the tapered side surface portion 33 is formed in a conical side surface shape with the tip cut off by resin or the like, the upper end is formed by being connected to the constricted portion 321 of the rising cylinder portion 32, and the bottom plate portion 31 is formed at the lower end. The main body 310 is fitted and bonded.

  And in this Embodiment, the outer peripheral surface 33a of the side along the side surface of the utility pole 11 of the taper-shaped side part 33 is rising cylinder part 32 toward the bottom plate part 31 of a lower end from the narrow part 321 connected to an upper end. The lower end 33c of the outer peripheral surface 33a of the tapered side surface portion 33 is substantially the same as the outer peripheral surface 32a of the rising cylindrical portion 32 and the axial direction of the rising cylindrical portion 32. It is located on a straight line L.

  That is, since the lower end of the rising cylinder portion 32 is reduced in diameter by a certain width to form a constricted portion 321, it is retreated from the outer peripheral surface 32 a of the cylindrical portion of the rising cylinder portion 32 that is not reduced in diameter by that width. is doing.

  Therefore, the bottom end 33c of the outer peripheral surface 33a of the tapered side surface portion 33 corresponds to the depth of the constricted portion 321 up to a position where the lower end 33c is substantially collinear with the outer peripheral surface 32a of the cylindrical portion of the rising cylindrical portion 32 that is not reduced in diameter. It is inclined so as to open downwards as much as possible.

  Therefore, when installed on the side surface of the utility pole 11, the outer peripheral surface 32a of the rising cylindrical portion 32 and the lower end 33c of the outer peripheral surface 33a of the tapered side surface portion 33 are in contact at two points. Since the point is parallel to the axial direction of the rising cylinder portion 32, the axial direction of the rising cylinder portion 32 and the direction of the side surface of the utility pole 11 coincide.

  Here, the inclination angle of the tapered side surface portion 33 with respect to the axial direction of the rising cylindrical portion 32 is from 15 degrees so as not to hinder the wiring when the wiring is inserted into the focusing joint 3 through the sleeve portion 34. It is preferably formed at 25 degrees, more preferably 20 degrees to 21 degrees.

  Next, a construction method of the buried pipe standing structure C including the focusing joint 3 will be described with reference to FIG.

  First, in the factory, the rising cylindrical portion 32 and the tapered side portion 33 are integrally molded, and the inner tube 341,... And the outer tube 342,. The bottom plate portion 31 is used (see FIG. 1).

  Subsequently, the bottom plate portion 31 is fitted and bonded to the lower ends of the rising cylindrical portion 32 and the tapered side surface portion 33.

  Next, the ground 12 is excavated, and the upper end 41a of the bent pipes 41,... Embedded in advance is inserted into the sleeve portion 34 of the bottom plate portion 31 and fixed with an adhesive.

  Next, the focusing joint 3 is temporarily fixed to the utility pole 11 with a temporary fixing iron wire or the like. At this time, the outer peripheral surface of the rising cylindrical portion 32 and the outer peripheral surface of the tapered side surface portion 33 are installed so as to be parallel to the axial direction of the rising cylindrical portion 32.

  Finally, the rising sheath pipe 21 is inserted into the rising cylinder portion 32 and fixed with an adhesive, and the concrete 13 is placed in the excavated portion to complete the construction.

  In the case where the wiring is inserted at the same time, when the focusing joint 3 is temporarily fixed in the above-described process, the wiring is inserted to the position of the focusing joint 3, and the wiring is once taken out and inserted into the rising sheath tube 21. Let

  Next, the operation of the focusing joint 3 of the present embodiment will be described.

  As described above, the focusing joint 3 according to the present embodiment includes a bottom plate portion 31 having a plurality of sleeve portions 34,... To which a plurality of embedded sheath tubes 41,. A vertical tube portion 32 to be fitted, a tapered side surface portion 33 for guiding the wiring inserted from the bottom plate portion 31 to the vertical tube portion 32, an outer peripheral surface 32a of the vertical tube portion 32, and a taper. The lower end 33 c of the outer peripheral surface 33 a of the cylindrical side surface portion 33 is positioned on substantially the same straight line L when viewed in the axial direction of the rising cylindrical portion 32.

  Therefore, the upper and lower portions of the outer peripheral surface 32a of the rising cylindrical portion 32 and the lower end 33c of the outer peripheral surface 33a of the tapered side surface portion 33 are in contact with the side surface of the utility pole 11 as a structure. Can be attached in parallel along the side surface of the utility pole 11.

  That is, two points of the outer peripheral surface 32 a of the rising cylindrical portion 32 and the lower end 33 c of the outer peripheral surface 33 a of the tapered side surface portion 33 are parallel to the axial direction of the rising cylindrical portion 32 and are in contact with the utility pole 11. Therefore, the axial direction of the rising cylindrical portion 32 and the direction of the side surface of the utility pole 11 coincide.

  If the axial direction of the rising cylinder portion 32 and the installation direction of the rising sheath tube 21 coincide with each other, the rising sheath tube 21 is inserted into the rising cylinder portion 32 and bonded thereto. Since the outer peripheral surface of the inner surface and the inner peripheral surface of the rising cylindrical portion 32 are in contact with each other, the water-stopping property is improved and the attachment strength can be increased.

  In this way, the improvement of the water-stopping and the mounting strength is that the focusing joint 3 is intended to be constructed without excavating the ground 12 when wiring is added to a structure such as the utility pole 11 in the first place. It can be said that the effect is particularly great in the scene where the is used.

  That is, as in the prior art, when connecting the rising cylinder portion 32 and the rising sheath pipe 21, the mounting strength is low or the water stop is incomplete, and repair work is required. It eliminates the need for tremendous costs and labor.

  And as above, by burying the focusing joint 3 to which a plurality of buried sheath tubes 41 are connected in advance, the ground 12 is not excavated when wiring such as communication or power is newly inserted. Good.

  Further, a constricted portion 321 that abuts the end portion 21a of the rising sheath tube 21 is formed at the base of the rising cylindrical portion 32 with respect to the tapered side surface portion 33, and is along the side surface of the structure of the tapered side surface portion 33. The outer peripheral surface 33a is inclined in a direction away from the central axis of the rising cylindrical portion 32 from the upper end constricted portion 321 to the lower end, and the lower end 33c of the outer peripheral surface 33a of the tapered side surface portion 33 is Are located on substantially the same straight line L when viewed in the axial direction of the outer peripheral surface 32a and the rising cylindrical portion 32.

  Accordingly, with an extremely simple configuration, two upper and lower portions of the outer peripheral surface 32a of the rising cylinder portion 32 and the lower end 33c of the outer peripheral surface 33a of the tapered side surface portion 33 abut on the side surface of the utility pole 11 as a structure. By this, it can attach along the side surface of the utility pole 11 as a structure.

  In addition, if comprised as mentioned above, it will become possible to attach the focusing joint 3 in parallel with the side surface of the utility pole 11 whatever the outer diameter of the utility pole 11 as a structure.

  Further, in the focusing joint 3 according to the present embodiment, since the tapered side surface portion 33 is inclined, there is no particular problem when wiring is inserted from below through the sleeve portion 34.

  That is, in order to insert the upright sheath tube 21 and stop it at an appropriate position, a protrusion is required inside the focusing joint 3, but when the protrusion is provided, the wiring is inserted through the sleeve portion 34. There is a possibility of getting caught on the protrusion.

  On the other hand, if the constricted portion 321 is provided to stop the rising sheath tube 21 at an appropriate position as in the present embodiment, and the tapered side surface portion 33 below the constricted portion 321 is tapered. The wiring is not caught on the constricted portion 321.

  Hereinafter, a focusing joint 3A different from the above-described embodiment will be described with reference to FIGS.

  The description of the same or equivalent parts as those described in the above embodiment will be given the same reference numerals.

  In the present embodiment, a case where an upright wall portion is provided on the bottom plate portion in the case where a focusing joint is manufactured by injection molding will be described.

  First, in terms of the configuration, the focusing joint 3A of the present embodiment includes the rising cylinder portion 32 into which the rising sheath tube 21 is inserted and the wiring inserted from the bottom plate portion 31, as shown in FIGS. A bottom plate portion 35 having a plurality of sleeve portions 352,... Into which a tapered side surface portion 33 to be guided to the rising cylinder portion 32 and a plurality of curved pipes 41,. It has.

  The rising cylinder portion 32 is formed in a cylindrical shape having an inner diameter substantially the same as the outer diameter of the rising sheath tube 21 by resin or the like, and a constricted portion 321 with a reduced diameter of the cylinder is provided at the lower end. It has been.

  Further, the tapered side surface portion 33 is formed in a conical side surface shape with the tip cut off by resin or the like, the upper end is formed by being connected to the constricted portion 321 of the rising cylinder portion 32, and the bottom plate portion 35 is formed at the lower end. The main body 350 is fitted and bonded.

  In the present embodiment, the outer peripheral surface 33a on the side along the side surface of the utility pole 11 of the tapered side surface portion 33 is in the axial direction of the rising cylindrical portion 32 from the constricted portion 321 connected to the upper end toward the lower end. They are formed in parallel. Therefore, the lower end 33 c of the outer peripheral surface 33 a of the tapered side portion 33 is retracted by the width of the constricted portion 321.

  The bottom plate portion 35 of this embodiment is injection-molded with resin, and protrudes into the disc-shaped main body portion 350, the upright wall portion 351 erected on the periphery of the main body portion 350, and the main body portion 350. A plurality of sleeve portions 352,... Provided integrally.

  The upright wall 351 is formed in a substantially vertical wall shape integral with the main body 350 on the periphery of the surface opposite to the surface on which the sleeves 352 of the main body 350 are provided. The thickness is approximately the same as the depth of 321.

  Therefore, the outer peripheral surface 35 a of the upright wall portion 351 of the bottom plate portion 35 is positioned on the substantially same straight line L when viewed in the axial direction of the outer peripheral surface 32 a of the rising cylindrical portion 32 and the rising cylindrical portion 32.

  In addition, the sleeve portion 352 is formed in a cylindrical shape that is integral with the main body portion 350, and is evenly positioned at the square apex position on the surface opposite to the surface on which the upright wall portion 351 of the main body portion 350 is provided. Four protrusions are provided.

  Further, since the inner diameter of the base of the sleeve portion 352 with respect to the main body portion 350 is reduced, the position of the sleeve portion 352 can be determined by abutting the end face when the bent tube 41 as the embedded sheath tube is inserted.

  Next, the operation will be described.

  As described above, the converging joint 3A of the present embodiment is formed with the constricted portion 321 that abuts the end portion of the rising sheath tube 21 at the base of the rising cylindrical portion 32 with respect to the tapered side surface portion 33, and is tapered. The outer peripheral surface 33a on the side of the side portion 33 along the side surface of the structure is formed in parallel with the axial direction of the rising cylinder portion 32, and the thickness of the bottom plate portion 35 is substantially the same as the depth of the constricted portion 321. The upright wall portion 351 is provided so that the upright wall portion 351 is fitted so as to cover the lower end 33c of the tapered side surface portion 33, and the outer peripheral surface 35a of the upright wall portion 351 of the bottom slab portion 35 The outer peripheral surface 32a of 32 and the axial direction of the rising cylinder part 32 are located on substantially the same straight line L.

  Accordingly, with an extremely simple configuration, the upper and lower portions of the outer peripheral surface 32a of the rising cylinder portion 32 and the outer peripheral surface 35a of the bottom plate portion 35 are in contact with the side surface of the structure, thereby along the side surface of the structure. Can be attached.

  That is, since the two points of the outer peripheral surface 32a of the rising tube portion 32 and the outer peripheral surface 35a of the bottom plate portion 35 are parallel to the axial direction of the rising tube portion 32 and are in contact with the utility pole 11, the rising tube The axial direction of the part 32 and the direction of the side surface of the utility pole 11 coincide.

  Thus, if the axial direction of the rising cylinder portion 32 and the installation direction of the rising sheath tube 21 coincide, the rising sheath tube 21 is inserted into the rising cylinder portion 32 and bonded. Since the outer peripheral surface of the upper sheath tube 21 and the inner peripheral surface of the rising cylindrical portion 32 are in contact with each other, the water-stopping property is improved and the attachment strength can be increased.

  Further, since the sleeve portion 352 is formed integrally with the main body portion 350, it is not necessary to fit the outer tube 342 to the inner tube 341 as in the above-described embodiment, and the entire length of the sleeve portion 352 can be reduced. It can be made shorter than the sleeve portion 34 of the form.

  Other configurations and operational effects are substantially the same as those in the above-described embodiment, and thus the description thereof is omitted.

  Hereinafter, the focusing joint 3B different from the embodiment and Example 1 will be described with reference to FIG.

  The description of the same or equivalent parts as those described in the above embodiment will be given the same reference numerals.

  In this embodiment, a case will be described in which a concave portion that fits to the outer surface of a structure is provided on the side surface of the focusing joint.

  First, the configuration will be described. As shown in FIG. 6, the focusing joint 3B of the present embodiment includes a rising cylinder portion 32 into which the rising sheath tube 21 is inserted and a wiring inserted from the bottom plate portion 31. And a bottom plate portion 35 having a plurality of sleeve portions 352,... Into which curved pipes 41,. Yes.

  The rising cylinder portion 32 is formed in a cylindrical shape having an inner diameter substantially the same as the outer diameter of the rising sheath tube 21 by resin or the like, and a constricted portion 321 with a reduced diameter of the cylinder is provided at the lower end. It has been.

  Further, the tapered side surface portion 33 is formed in a conical side surface shape with the tip cut off by resin or the like, the upper end is formed by being connected to the constricted portion 321 of the rising cylinder portion 32, and the bottom plate portion 35 is formed at the lower end. The main body 350 is fitted and bonded.

  Furthermore, the outer peripheral surface 33a on the side along the side surface of the utility pole 11 of the tapered side surface portion 33 is formed in parallel with the central axis of the rising cylinder portion 32 from the constricted portion 321 connected to the upper end toward the lower end. . Therefore, the lower end 33 c of the outer peripheral surface 33 a of the tapered side surface portion 33 is retracted from the rising cylindrical portion 32 by the width of the constricted portion 321.

  As described above, the outer peripheral surface 35 a of the upright wall portion 351 of the bottom plate portion 35 is located on substantially the same straight line L as viewed in the axial direction of the outer peripheral surface 32 a of the rising cylindrical portion 32 and the rising cylindrical portion 32.

  And in the focusing joint 3B of a present Example, it is to the outer peripheral surfaces 32a, 33a, 35a of the side along the side surface of the electric pole of the circular cross section as a structure of the standing cylinder part 32, the taper-shaped side part 33, and the bottom plate part 35. Arc-shaped recesses 32b, 33b, and 35b that are fitted to the outer surface of the utility pole are provided.

  That is, the outer peripheral surface 35a of the upright wall portion 351 of the bottom plate portion 35 and the outer peripheral surface 32a of the rising cylindrical portion 32, which are positioned on substantially the same straight line L when viewed in the axial direction of the rising cylindrical portion 32, are approximately. Arc-shaped concave portions 35b and 32b having the same shape are provided.

  In addition, the outer peripheral surface 33a of the tapered upper side surface portion 33 is also provided with an arc-shaped recess 33b that fits into the arc-shaped recess 35b provided on the outer peripheral surface 35a of the upright wall portion 351 of the bottom plate portion 35 described above. Yes.

  Next, the operation will be described.

  As described above, the outer peripheral surfaces 32a, 33a, and 35a on the side along the side surface of the structure of the rising cylindrical portion 32, the tapered side surface portion 33, and the bottom plate portion 35 of the focusing joint 3B of the present embodiment are arranged on the outer surface of the structure. Since the recesses 32b, 33b, and 35b are provided to fit into the structure, the mounting direction with respect to the structure can be defined while effectively using the internal space.

  That is, when a utility pole having a circular cross section is used as the structure, an arcuate recess 32b having substantially the same diameter as the outer diameter of the utility pole so as to be fitted to the outer circumference 32a, 33a, 35a of the focusing joint 3B. 33b and 35b are provided.

  And since this arc-shaped recessed part 32b, 33b, 35b is located in a line in parallel with the axial direction of a utility pole, as a result, the focusing joint 3B will also be installed in parallel with the axial direction of a utility pole.

  Further, as shown in FIG. 6, the arc-shaped concave portions 32b, 33b, and 35b are provided so as to avoid the extended lines of the sleeve portions 352,. The wiring is not caught even when it is inserted.

  In addition, even if the outer diameter of the electric pole having a circular cross section as a structure is larger than the diameter of the arcuate recesses 32b, 33b, 35b, two points on both ends of the arcuate recesses 32b, 32b, 35b. Since the power pole and the power pole are in contact with each other, it is possible to define the mounting direction.

  In addition, about another structure and an effect, since it is substantially the same as the said embodiment and Example 1, description is abbreviate | omitted.

  The preferred embodiments and examples of the present invention have been described in detail with reference to the drawings, but the specific configuration is not limited to the embodiments or examples, and does not depart from the gist of the present invention. A degree of design change is included in the present invention.

  For example, in the above-described embodiment and Examples 1 and 2, the case where a power pole is used as a structure has been described. However, the present invention is not limited to this, and a structure such as a building wall for starting up wiring is used. Anything is acceptable.

  Moreover, in the said embodiment and Example 1, 2, although the case where the cylindrical standing-up sheath tube 21 and the buried sheath tube 41 were used was demonstrated, it is not limited to this, A square cross section, a rectangular cross section, etc. The rising sheath tube may have any cross-sectional shape.

  Furthermore, in the above-described embodiment and Examples 1 and 2, the case where the constricted portion 321 is provided in the rising cylinder portion 32 has been described. However, the present invention is not limited to this, and the constricted portion may not be provided. Good.

  And in the said Example 2, although the case where the recessed part 35b was provided in the focusing joint 3B provided with the bottom plate part 35 which has the upright wall part 351 was demonstrated, it is not limited to this, The bottom plate which does not have an upright wall part You may provide a recessed part in a part.

It is a longitudinal cross-sectional view explaining the structure of the focusing joint of the best embodiment of this invention. It is sectional drawing explaining the state in which the focusing joint of the best embodiment of this invention was attached to the structure. It is a perspective view explaining the structure of the focusing joint of the best embodiment of this invention. It is a longitudinal cross-sectional view explaining the structure of the focusing joint of Example 1. FIG. It is a perspective view explaining the structure of the focusing joint of Example 1. FIG. It is a perspective view explaining the structure of the focusing joint of Example 2. FIG.

Explanation of symbols

C Embedded pipe standing structure L Same straight line 11 Utility pole (structure)
12 Ground 21 Stand-up sheath tube 3, 3A, 3B Focusing joint 31 Bottom plate portion 31a Outer peripheral surface 32 Upright cylindrical portion 32a Outer peripheral surface 32b Recessed portion 321 Constricted portion 33 Tapered side surface portion 33a Outer peripheral surface 33b Recessed portion 33c Lower end 34 Sleeve portion 35 Bottom plate Part 35a outer peripheral surface 35b recess 351 upright wall part 352 sleeve part 41 curved pipe (buried sheath pipe)

Claims (4)

A focusing joint for bundling a plurality of buried sheath pipes embedded in the ground containing the wiring and connecting to the rising sheath pipe that leads the wiring to the ground along the side of the structure,
A bottom plate portion having a plurality of sleeve portions into which the plurality of embedded sheath tubes are fitted, a rising tube portion into which the upright sheath tubes are fitted, and the wiring inserted from the bottom plate portion into the upright tube portion And a tapered side surface portion that guides to
The outer peripheral surface of the rising cylindrical portion and the lower end of the outer peripheral surface of the tapered side surface portion or the outer peripheral surface of the bottom plate portion are located on substantially the same straight line at least in one place when viewed in the axial direction of the rising cylindrical portion. A focusing joint characterized in that At the base of the rising cylindrical portion with respect to the tapered side surface portion, a constricted portion that abuts the end portion of the rising sheath tube is formed,
The outer peripheral surface on the side along the side surface of the structure of the tapered side surface portion is inclined in a direction away from the central axis of the rising cylinder portion from the constricted portion to the bottom plate portion,
2. The lower end of the outer peripheral surface of the tapered side surface portion is located substantially on the same straight line at least at one position when viewed in the axial direction of the outer peripheral surface of the upright tube portion and the upright tube portion. Focusing joint as described in. At the base of the rising cylindrical portion with respect to the tapered side surface portion, a constricted portion that abuts the end portion of the rising sheath tube is formed,
The outer peripheral surface of the tapered side surface portion along the side surface of the structure is formed in parallel with the axial direction of the upright cylinder portion, and is substantially the same as the depth of the constricted portion at the periphery of the bottom plate portion. An upright wall with a thickness of
The upright wall portion is fitted so as to cover the lower end of the tapered side surface portion,
The outer peripheral surface of the upright wall portion of the bottom slab portion is positioned on substantially the same straight line at least in one place when viewed in the axial direction of the outer peripheral surface of the upright tube portion and the upright tube portion. Focusing joint as described in.   The recessed part fitted to the outer surface of the said structure is provided in the outer peripheral surface of the side which follows the side surface of the said structure of the said rising cylinder part, the said taper-shaped side part, and the said bottom plate part. The focusing joint according to any one of claims 1 to 3.

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