JP2011111783A - Mechanism for covering columnar body head of utility pole - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mechanism for covering the columnar body head of a utility pole, which holds and fixes the concrete pole of the utility pole by the action of force from at least two directions and is hard to receive deterioration effects with age. <P>SOLUTION: The mechanism for covering the columnar body head of the utility pole includes a covering member 5 having a covering portion 6 of an outer shape larger than that of the top surface of the concrete pole 2 of the utility pole 1, an extended portion 7 extended downward in the axial direction of the concrete pole 2 from the circumferential edge of the covering portion 6, and a projecting portion 8 projecting in the direction same as the direction of the extended portion 7 from the lower side surface of the covering portion 6 to be inserted under pressure into the vertical hole 3 of the concrete pole 2. The covering member 5 includes a holding means for imparting an urging force from the radial direction outside to the concrete pole 2, wherein the holding means, with its belt-like member 21 wound around the outer surface of the extended portion 7 for tightening the outer surface of the extended portion 7 with the belt-like member 21, is configured to hold, between the extended portion 7 and the projecting portion 8, the concrete pole 2 positioned therebetween. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to a cap-shaped covering member that covers a concrete pole included in a telephone pole, a telephone pole, and other concrete poles, and other columnar bodies having a head opening, and particularly for this covering. The present invention relates to a mechanism suitable for preventing a member from dropping from a columnar body head of a utility pole.

  For caps of concrete poles such as telephone poles and telephone poles installed outdoors, cap-shaped covering members are used as countermeasures against bird damage such as intrusion of rainwater from vertical holes opened at the top and nest building. The attachment is already known (see, for example, Patent Document 1).

  On the other hand, the covering member may fall from the columnar body such as the concrete pole of the electric pole to the ground surface due to various circumstances such as aging of the covering member. For this reason, in order to prevent the covering member from falling from the columnar body head of the power pole, the covering member is securely fixed to the columnar body head of the power pole and can withstand long-term use. Is required.

  In this regard, in the concrete column head cap shown in Patent Document 1 described above, a plurality of locking pieces are formed toward the center side in the radial direction of the cap in FIG. The cap is firmly fixed to the head of the concrete column by extrapolating the cap to the head of the concrete column with the concrete column sandwiched between the locking pieces. It is supposed to be possible.

  Further, the applicant of the present application has disclosed a configuration in which a cap-shaped temporary covering member for a building pole is put on the head of a utility pole, and then a portion near the opening end of the temporary covering member for a building pole is fastened with a band. Already disclosed in FIG. 5 and FIG.

JP 2004-3000886 A JP 2008-99495 A

  However, the concrete pole head cap shown in Patent Document 1 and the building pole temporary covering member shown in FIGS. 5 and 6 of Patent Document 2 are intended for utility poles in which no opening is formed on the top surface. is there. Along with this, the concrete column head cap is held and fixed by the locking piece, and the temporary covering member for the building column is held and fixed by tightening with the band from one side of the electric pole toward the inside in the radial direction. This is only due to the application of the urging force. For this reason, in the concrete pillar head cap of patent document 1, and the temporary covering member for building poles described in patent document 2, it is not necessarily recognized as sufficient as the reliability of the means for holding and fixing the covering member to the electric pole. It is difficult to sufficiently achieve the purpose of avoiding cap removal.

  Moreover, in the locking piece formed integrally with the band or the concrete column head cap wound around the outer periphery of the building column temporary covering member, the urging force from the band or the locking piece due to damage due to deterioration over time, cracking, etc. As a result, the building pole temporary covering member and the concrete column head cap are also feared to fall from the columnar body head of the utility pole.

  Therefore, the present invention can hold and fix the covering member on the pole body head of the utility pole by applying a biasing force from at least two directions, and is hardly affected by aging deterioration. An object is to provide a mechanism for covering parts.

  The columnar body head covering mechanism of the utility pole according to the present invention is a utility pole having a standing columnar body, the columnar body has a vertical hole extending along the axial direction, and the vertical hole is on the top surface. A cover for covering the head of the columnar body in the case of an open configuration, the cover-shaped portion having an outer shape larger than the outer shape of the top surface of the columnar body, and the cover-shaped portion An extending portion extending downward from the peripheral edge of the columnar body along the axial direction of the columnar body, and a protruding portion projecting in the same direction as the extending portion from the lower side surface of the cover-shaped portion and press-fit into the vertical hole of the columnar body And a holding means for applying an urging force to the columnar body from the outside in the radial direction is provided at the elongated portion of the covering member. As long as the pole has a vertical hole on the top surface and is erected from the ground surface, it can be any pole-shaped pole, such as a telephone pole or a telephone pole. Also applicable are steel pillars and the like. Then, a support member is passed over the protruding portion in order to prevent the protruding portion from being bent by the inner surface of the vertical hole when it is pressed into the opening of the vertical hole of the columnar standing body. May be. Further, the holding means may be a gel applied to the inner surface of the elongated portion in addition to the embodiment described below.

  As a result, the covering member is made up of the columnar body of the electric pole by the force from the radially inner side to the columnar body head of the electric pole by the protruding portion of the covering member and the force from the radially outer side to the columnar body head of the electric pole by the holding means The head is firmly and securely held.

  In the holding means, a protruding portion extending along the axial direction of the columnar body is formed on the inner surface of the elongated portion, and an end surface of the protruding portion along the axial direction of the columnar body is a top surface side of the columnar body. In this configuration, the columnar body located between the protruding portion and the protruding portion is held between the protruding portion and the protruding portion by holding the protruding portion close to the protruding portion for a while. The protruding portion may be formed with a notch so that the lower end of the elongated portion can be extrapolated and covered with the columnar body. Thereby, since a protrusion part exists inside the member for coating | cover, it is hard to receive the influence of rain water etc. and can endure long-term use.

  Further, the holding means is formed with a screw hole extending along the radial direction of the columnar body in the extended portion, and a screw head is attached to the screw hole from the outer surface of the extended portion, thereby By abutting and pressing against the outer peripheral surface of the columnar body, the columnar body located between the screw and the projecting portion is sandwiched and held (claim 3). Thereby, it can endure long-term use by preventing fall from a screw hole with a nut with respect to a screw.

  Further, the holding means is configured such that a belt-like member is wound around the outer surface of the extension portion, and the outer surface of the extension portion is fastened by the belt-like member, whereby the columnar body positioned between the extension portion and the protrusion portion. Is sandwiched and held (claim 4).

  As described above, according to the present invention, the biasing force from the radially inner side to the columnar body head of the utility pole by the protruding portion of the covering member and the biasing force from the radially outer side to the columnar body head of the utility pole by the holding means Since the covering member is firmly and securely held on the head of the pole body of the electric pole, the covering member falls to the ground surface and causes harm to pedestrians, bicycle riders, vehicles, etc. located near the electric pole. Can be suppressed.

  In particular, according to the second aspect of the present invention, since the protruding portion constituting the holding means of the columnar body head covering mechanism of the utility pole is present inside the covering member, it is difficult to be affected by rainwater or the like. Can withstand long-term use. In particular, according to the invention described in claim 3, since the nut constituting the holding means of the columnar body head covering mechanism of the utility pole can be prevented from falling from the screw hole by the nut, Can withstand long-term use.

FIG. 1 is a cross-sectional view showing a first example of a columnar body head covering mechanism of a utility pole according to the present invention. FIG. 2: is a bottom view which shows the state seen from the bottom face side about the 1st example of the columnar body head coating | coated mechanism of a utility pole same as the above. FIG. 3 is a half sectional view showing a second example of the columnar body head covering mechanism of the utility pole of the present invention. FIG. 4 is a half sectional view showing a third example of the columnar head covering mechanism of the utility pole of the present invention. FIG. 5 is a cross-sectional view showing a fourth example of the columnar body head covering mechanism of the utility pole of the present invention.

  Hereinafter, an example of an embodiment of the present invention will be described with reference to the drawings.

  1 and 2 show a first example of a pole-body-head covering mechanism for a utility pole according to the present invention.

  Of these, the utility pole 1 to which the pole-body head covering mechanism of the utility pole is mounted is a publicly known one, and is configured to have a concrete pillar 2 extending linearly from the ground surface. In order to install an electric wire between other electric poles, a brace, a lever, etc. are attached, and also electric equipment is mounted as needed.

  The concrete pillar 2 is formed of reinforced concrete or the like, and has a cylindrical shape with a circular top surface. As shown in FIG. 1, a vertical hole 3 extending along the axial direction of the concrete pillar 2 therein. And the top of the vertical hole 3 is open to the top surface. Although not shown in the drawings, even if it is a columnar body other than the concrete column 2, for example, a columnar body such as a steel column, the columnar body head of the electric pole according to the present invention has the vertical hole 3 similarly to the concrete column 2. A coating mechanism can be used. The same applies to the following embodiments.

  The covering member 5 constituting the columnar body head covering mechanism of the electric pole is for covering the head of the concrete pole 2 of the electric pole 1 and is a synthetic resin material (for example, carbon to polyethylene and resistant to cracking). And a substantially disc-shaped covering portion 6 slightly larger than the top surface of the concrete column 2, and from the entire periphery of the covering portion 6 to the head of the concrete column 2. It is basically composed of an elongated portion 7 extending in a direction that is substantially the axial direction of the concrete pillar 2 when covered.

  In this embodiment, the covered portion 6 has a shape that gently swells so that the central portion P is above the peripheral side, and the covered portion 6 does not necessarily abut against the top surface of the concrete column 2. Instead, a space S may be defined between the covered portion 6 and the top surface of the concrete pillar 2.

  The covering portion 6 is formed with a protruding portion 8 extending in the same direction as the elongated portion 7, and this protruding portion 8 has a cylindrical shape with a circle centering on the central portion P of the covering portion 6 as a base point. There is no. And when the assumption line L2 which extends as it is from the surface on the concrete column side of the protruding portion 8 is defined, as shown in FIG. 1, the vertical hole extends from the inner peripheral surface of the opening 3 a of the vertical hole 3 of the concrete column 2. 3, with respect to the assumed line L <b> 1 extending along the axial direction of the projection 3, the projected line L <b> 2 substantially coincides with the tip of the projected part 8 in the extending direction, but the base on the cover-like part 6 side. In order to incline toward the outer peripheral side of the concrete column 2 over the assumed line L1 as it goes to the side, the thickness gradually increases. As a result, the projecting portion 8 exerts a force that presses the inner peripheral surface of the vertical hole 3 of the concrete column 2 toward the radially outer side of the vertical hole 3 at least in the vicinity of the opening 3 a of the vertical hole 3 of the concrete column 2. It is press-fitted in the form.

  In addition, the portion near the end in the extending direction of the protruding portion 8 is notched obliquely from the cylindrical opening end toward the covered portion 6 so that the concrete column 2 can be easily inserted into the vertical hole 3. Thus, it may have a substantially truncated cone shape when viewed from the side.

  A support mechanism 10 may be provided inside the protruding portion 8 as shown in this embodiment. As shown in FIGS. 1 and 2, the support mechanism 10 includes a shaft portion 11 extending from the central portion P of the cover-shaped portion 6 in the same direction as the protruding portion 8, and a plurality of installations extending radially from the shaft portion 11. The tip portion of the extending portion 12 in the extending direction is connected to the inner peripheral surface of the protruding portion 8. As a result, when the protruding portion 8 is inserted into the vertical hole 3 of the concrete column 2 from the opening 3 a, the protruding portion 8 is bent by the repulsive force from the concrete column 2, and the protruding portion 8 and the vertical hole 3 of the concrete column 2. The problem that the inner surface of the substrate is not sufficiently held can be suppressed.

  In this embodiment, when the covering member 5 is put on the concrete column 2 as shown in FIG. 1, the elongated portion 7 is not in direct contact with the outer peripheral side surface of the concrete column 2 and has a gap T. Yes. Further, as shown in this embodiment, the elongated portion 7 is further outwardly as it is separated from the covered portion 6 side in order to facilitate the insertion of the covering member 5 into the vertical hole 3 of the concrete pillar 2. The shape may be inclined so as to spread. Further, a portion of the projecting portion 14 in the vicinity of the end in the extending direction of the elongated portion 7 extends so that the covering member 5 can be easily inserted into the vertical hole 3 of the concrete pillar 2 even if the projecting portion 14 is present. You may make it become the shape notched diagonally upward toward the covering part 6 side from the part 7 side.

  A protruding portion 14 is formed on the inner side of the covering member 5 from the opposite end of the extending portion 7 to the covering portion 6 to the covering portion 6. For example, as shown in FIG. 2, the protrusions 14 are arranged at the same interval in the number of 16, but the number and interval are not limited to those shown in FIG. 2, and the number is 2 There may be.

  And when the assumption line L4 extended as it is from the surface of the concrete column side of each protrusion 14 is defined, the axial direction of the vertical hole 3 of the concrete column 2 from the outer surface of the concrete column 2 as shown in FIG. In contrast to the assumed line L3 defined along the protrusion 14, the projection 14 is substantially coincident with the tip of the extending part 7 in the extending direction of the elongated part 7. It is configured to gradually protrude toward the center side of the vertical hole 3 along the radial direction of the vertical hole 3 so as to incline beyond the assumed line L3 toward the hole 3. As a result, the projecting portion 14 is directed radially inward of the vertical hole 3 with respect to the outer surface of the concrete column 2 when covering the concrete column 2 with the covering member 5 at least in the vicinity of the head of the concrete column 2. The concrete pillar 2 is held in such a way that the pressing force works.

  However, since the covering member 5 holds the concrete column 2 by the action of two forces of the pressing force by the protruding portion 8 and the pressing force by the protruding portion 14 of the extending portion 7, the covering member 5 is covered from the head of the concrete column 2. The member 5 is prevented from easily falling to the ground surface. In addition, since the protruding portion 8 and the protruding portion 14 are inside the covering member 5, they are hardly affected by rainwater and can be used for a long time.

  And since the space S exists between the cover-like part 6 of the covering member 5 and the top surface of the concrete column 2, and the gap T exists between the extended portion 7 and the side surface of the concrete column 2, Even if the air in the vertical hole 3 of the concrete pole 2 of the utility pole 1 is heated, the air escapes from the vertical hole 3 to the outside of the covering member 5 through the opening 3a, the space S, and the gap T. It is also possible to exhaust the heat inside the concrete pillar 2. Thereby, the situation where the covering member 5 is deformed or detached due to the temperature change in the covering member 5 can be suppressed.

  In FIG. 3, the 2nd example of the columnar body head covering mechanism of the utility pole which concerns on this invention is shown. Hereinafter, this second example will be described with reference to FIG. However, the same components as those in the first example described above are basically denoted by the same reference numerals, and the description thereof is omitted.

  The covering member 5 constituting the columnar body head covering mechanism of the electric pole is configured to have a covering portion 6, an extended portion 7, and a protruding portion 8, and is placed on the head of the concrete column 2. In this case, it is at least the same as the first example in that a gap T is provided between the elongated portion 7 and the outer surface of the concrete column 2.

  On the other hand, in this embodiment, the covering member 5 is formed with a plurality of screw holes 15 extending through the elongated portion 7 along the radial direction of the concrete pillar 2 or the vertical hole 3 as through holes. Can be inserted. In FIG. 3, the positions where the screws 16 are inserted are four places (one is not shown because it is the opposite side). However, the position is not necessarily limited to this. good.

  The length of the screw 16 inserted into the screw hole 15 is larger than the sum of the thickness of the elongated portion 7 and the width of the gap T. A nut 17 is attached to a portion of the screw 16 protruding from the elongated portion 7.

  Thereby, by inserting each screw 16 while rotating it in a predetermined direction from the outside to the elongated portion 7 of the covering member 5, the top surface of the tip of the screw 16 abuts against the outer surface of the concrete column 2, The concrete column 2 is held in such a manner that a force pressing toward the radially inner side of the vertical hole 3 acts on the outer surface of the concrete column 2.

  However, since the covering member 5 holds the concrete column 2 by the action of two forces, that is, the pressing force by the screw 16 and the pressing force by the protruding portion 14 of the elongated portion 7, the covering member 5 is applied from the head of the concrete column 2. 5 is prevented from falling to the surface easily. Moreover, since the screw 16 is prevented from falling from the screw hole 15 by the nut 17, it can withstand long-term use.

  In FIG. 4, the 3rd example of the columnar body head covering mechanism of the utility pole which concerns on this invention is shown. Hereinafter, the third example will be described with reference to FIG. However, the same components as those in the first and second examples described above are denoted by the same reference numerals, and the description thereof is omitted.

  The covering member 5 constituting the columnar body head covering mechanism of the utility pole is configured to include a covering portion 6, an elongated portion 7, and a protruding portion 8. As shown in the first and second examples, the gap T does not occur, and the inner surface of the elongated portion 7 comes into direct contact with the concrete column 2. Moreover, the dimension from the cover-like part 6 of the extending | stretching part 7 to the edge part of the extension direction is long compared with the 1st example and 2nd example which were demonstrated so far.

  As shown in FIG. 4, a plurality of substantially U-shaped through portions 20 each having a laterally extending through hole 19 are formed on the outer surface of the elongated portion 7. A belt-like member 21 such as a belt can be inserted into the through hole 19 of the through portion 20. The belt-like member 21 is preferably a member whose surface is covered with a resin and the metal is not exposed from the viewpoint of weather resistance or the like.

  Thus, a fastening device such as a well-known stainless steel band or farson band is used, and a belt-like member 21 such as a belt constituting the fastening device is inserted through the through-hole 19 of the through portion 20 as appropriate. The elongated portion 7 of the covering member 5 is tightened from the outside with the belt-like member 21 using the belt-like member 21, so that the elongated portion 7 of the covering member 5 is directed radially inward of the vertical hole 3 with respect to the outer surface of the concrete column 2. The concrete pillar 2 is held in such a way that the pressing force works.

  However, since the covering member 5 holds the concrete column 2 by the action of two forces, that is, the tightening force by the belt-like member 21 and the pressing force by the protruding portion 14 of the elongated portion 7, the covering member 5 is covered from the head of the concrete column 2. The member 5 is prevented from easily falling to the ground surface.

  FIG. 5 shows a fourth example of the pole body head covering mechanism of the utility pole according to the present invention. Hereinafter, the fourth example will be described with reference to FIG. However, the same components as those in the first to third examples described above are basically denoted by the same reference numerals and the description thereof is omitted.

  The covering member 5 constituting the columnar body head covering mechanism of the electric pole has a covering portion 6, an extended portion 7, and a protruding portion 8. When the head is covered, the gap T does not occur as in the first and second examples, and the inner surface of the elongated portion 7 is in direct contact with the concrete pillar 2. Similar to the example.

  However, in the covering member 5, the gel 23 is applied to the inner surface of the elongated portion 7, and when the covering member 5 is put on the head of the concrete column 2, the elongated portion 7 and the concrete column 2 are separated from each other. The gel 23 is interposed therebetween, and as a result, the elongated portion 7 and the concrete pillar 2 are in close contact with each other. Thus, the covering member 5 can hold the protruding portion 8 by press-fitting the protruding portion 8 into the vertical hole 3 of the concrete column 2 and increase the frictional force by the gel 23 interposed between the elongated portion 7 and the concrete column 2. A plurality of holdings for the concrete pillar 2 by the holding that has been caused. However, the covering member 5 is prevented from easily falling to the ground surface from the head of the concrete pillar 2.

  Lastly, although the first to fourth examples of the pole body head covering mechanism of the utility pole according to the present invention have been described separately, for example, the first example and the second example, the first example and the third example, etc. The covering member 5 can be more reliably prevented from dropping from the head of the concrete pole 2 of the utility pole 1 to the ground surface.

1 Telephone pole 2 Concrete pillar (columnar body)
DESCRIPTION OF SYMBOLS 3 Vertical hole 3a Opening part 5 Covering member 6 Cover-like part 7 Elongation part 8 Projection part 14 Projection part 15 Screw hole 16 Screw 17 Nut 19 Through-hole 20 Through-part 21 Band-like member 23 Gel

Claims (4)

In an electric pole having an upright columnar body, when the columnar body has a vertical hole extending along the axial direction and the vertical hole is open to the top surface, the head of the columnar body A mechanism for covering the part,
A covering portion having an outer shape larger than the outer shape of the top surface of the columnar body, an extending portion extending downward along the axial direction of the columnar body from the periphery of the covering portion, and the covering portion A covering member having a protruding portion that protrudes from the lower surface in the same direction as the elongated portion and can be press-fitted into a vertical hole of the columnar body, and is radially directed to the columnar body at the elongated portion of the covering member An electric pole head covering mechanism comprising a holding means for applying an urging force from the outside.   In the holding means, a protruding portion extending along the axial direction of the columnar body is formed on the inner surface of the elongated portion, and an end surface of the protruding portion along the axial direction of the columnar body is a top surface side of the columnar body. The columnar body located between the projecting portion and the projecting portion is held between the projecting portion and the projecting portion by sandwiching and holding the projecting portion for a while toward the projecting portion. The columnar body head covering mechanism according to claim 1.   In the holding means, a screw hole extending along the radial direction of the columnar body is formed in the elongated portion, and a screw head is attached to the screw hole from an outer surface of the elongated portion so that the head of the screw has the columnar shape. 2. The structure according to claim 1, wherein the columnar body is sandwiched and held between the screw and the protruding portion by abutting and pressing against an outer peripheral surface of the body. The columnar body head covering mechanism for an electric pole according to claim 2.   In the holding means, a belt-like member is wound around the outer surface of the elongated portion, and the outer surface of the elongated portion is clamped by the belt-like member, thereby sandwiching the columnar body positioned between the elongated portion and the protruding portion. The structure for covering a pole-like body head of a utility pole according to any one of claims 1, 2, or 3, wherein the structure is configured to be held.

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