JP2010236295A - Cover for portion of contact of electric pole with ground surface - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent rainwater from intruding into a gap between an electric pole and a ground surface; and to easily check whether or not the gap is made. <P>SOLUTION: This cover 101 for a portion of contact of the electric pole with the ground surface includes a tubular base 105, and an umbrella portion 106. The umbrella portion 106 is formed in an umbrella shape from a flexible material. The umbrella portion 106, which continues into the base 105, is formed in such an umbrella shape as to spread from the base 105. The cover 101 is attached to a basal portion of the electric pole 102 in the state of bringing an inner peripheral surface of the base 105 into contact with an outer peripheral surface of the electric pole 102 and of bringing a lower edge 107a of the umbrella portion 106 into contact with the ground surface 103. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a utility pole ground cover that prevents rainwater from entering through a gap between a utility pole standing on the ground and the ground.

  The utility pole is erected with its lower end buried in the ground. When this ground becomes unstable, the utility poles are easy to fall over, which is dangerous. Patent document 1 protects the lower end part and its peripheral part of the electric pole by simultaneously covering the lower end part of the electric pole and the ground surface in the vicinity thereof, and prevents weeds from breeding in the peripheral part of the electric pole. The invention discloses an invention of a utility pole cover that prevents the utility pole from corroding and the surroundings of the utility pole from being soiled by excrement.

Japanese Patent Laid-Open No. 11-355946 (see FIG. 1 and paragraph 0023)

  The utility pole standing on the ground is shaken by the wind, and a gap is generated between the utility pole and the ground surface. Moreover, the utility poles are swayed to create a space around the lower end of the utility pole below the ground surface. When it rains in such a state, rainwater enters the outer periphery of the utility pole and enters the gap between the utility pole and the ground surface, and accumulates in a space below the ground surface. This accumulated rainwater erodes the surrounding soil and enlarges the space, creating a hollow shape. As a result, there is a risk that the ground around the utility pole will sink or the utility pole will fall.

  Here, consider a case where the utility pole cover described in Patent Document 1 is attached to the utility pole. Since the ground surface covering portion of the utility pole cover does not move, the operator cannot confirm whether there is a gap between the utility pole and the ground surface. In addition, there is a gap between the uneven ground surface and the lower surface of the flat ground surface covering portion, and rainwater flowing on the ground surface easily flows from there.

  The present invention has been made in view of the above points, and prevents rainwater from entering the gap formed between the utility pole and the ground surface, so that it can be easily checked whether or not this gap has occurred. The purpose is to do.

  The electric pole ground cover of the present invention is formed in an umbrella shape that extends from the base portion with a cylindrical base portion that is attached to the electric pole with the inner peripheral surface in contact with the outer peripheral surface of the electric pole, and has a tip region. A contact portion that contacts the ground surface, and an umbrella portion having elasticity that reverses the normal shape of the umbrella when an external force to turn it over is applied.

  According to the present invention, the rainwater flowing on the outer peripheral surface of the utility pole flows through the outer peripheral surface of the base and the surface of the umbrella portion of the utility pole ground cover attached to the utility pole and escapes to the ground surface. Since the rainwater which tries to enter the inner space of the umbrella portion is blocked, it is possible to prevent the rainwater from entering the gap formed between the utility pole and the ground surface. Moreover, since the shape of the umbrella is reversed and maintained when the umbrella portion is lifted, it is possible to easily check whether or not a gap is generated between the utility pole and the ground surface.

It is an external appearance perspective view of the utility pole ground cover attached to the utility pole in 1st embodiment. It is front sectional drawing of the utility pole ground cover attached to the utility pole in 1st embodiment. It is explanatory drawing explaining the principle of this invention. It is front sectional drawing which shows the telephone pole ground cover which was rolled up in 1st embodiment. It is an external appearance perspective view of the utility pole ground cover attached to the utility pole in 2nd embodiment. It is an external appearance perspective view of the utility pole ground cover attached to the utility pole in 3rd embodiment. It is an external appearance perspective view of the utility pole ground cover attached to the utility pole in 4th embodiment.

  One embodiment (first embodiment) of the present invention will be described with reference to FIGS.

  FIG. 1 is an external perspective view of a utility pole ground cover 101 attached to the utility pole 102. The utility pole 102 is erected from the ground surface 103 in a street or a park, and is exposed to the outdoors. Therefore, the utility pole 102 shakes in response to the wind. Due to this shaking, a gap 104 (see FIGS. 2 and 4) is generated between the utility pole 102 and the ground surface 103. The utility pole ground cover 101 of this Embodiment is attached to the base of the utility pole 102, and covers the gap 104 produced between the utility pole 102 and the ground surface 103. The utility pole ground cover 101 has a shape in which a cylindrical base portion 105 and a frustoconical umbrella portion 106 are connected. The inner peripheral surface of the base portion 105 is in contact with the outer peripheral surface of the utility pole 102, and the umbrella portion 106. With the lower edge 107 a pressed against the ground surface 103, it is attached to the base portion of the utility pole 102.

  FIG. 2 is a front sectional view of the utility pole ground cover 101 attached to the utility pole 102. The base 105 is made of synthetic rubber, for example. The inner diameter of the base 105 is the same as the diameter of the utility pole 102. The umbrella portion 106 is a sheet-like material such as flexible synthetic rubber, and is formed into an umbrella shape that is rounded into a truncated cone shape and expands from the base portion 105. Note that the base portion 105 and the umbrella portion 106 may be integrally formed or may be formed separately. The umbrella portion 106 has an umbrella shape and forms a space 109 therein. Further, as shown in FIG. 2, the upper end portion of the umbrella portion 106 and the lower end portion of the base portion 105 are connected.

  When installing the utility pole 102, the operator fits such a utility pole ground cover 101 into a portion to be the upper end of the utility pole 102 with the umbrella part 106 inserted first. The utility pole 102 generally has a cylindrical bar shape, and it is easy for an operator to move the utility pole ground cover 101 placed in the upper end portion of the utility pole 102. In this way, the operator moves the utility pole ground cover 101 and positions it at the base portion of the utility pole 102. At this time, since the inner diameter of the base portion 105 is the same as the diameter of the utility pole 102, no gap is generated between the utility pole 102 and the base portion 105 of the utility pole ground cover 101 attached to the utility pole 102. Thereafter, the worker embeds the utility pole 102 in the ground and attaches a footrest, an overhead wire, a transformer or the like (none of which is shown) to the utility pole 102.

  Subsequently, the operator holds the base portion 105 and pushes the entire utility pole ground cover 101 downward to bring the lower edge 107 a of the umbrella portion 106 into close contact with the ground surface 103. That is, the lower edge 107a of the umbrella portion 106 serves as the contact portion 107 in the utility pole ground cover 101 of the present embodiment. Thereby, the flexible umbrella part 106 bends, and the lower edge 107a of the umbrella part 106 receives a large drag force from the ground surface 103, and the adhesion between the ground surface 103 and the umbrella part 106 increases. After this, the operator may paste the space between the outer peripheral surface of the power pole 102 and the inner peripheral surface of the base portion 105 with an adhesive or the like to further improve the adhesion between the power pole 102 and the base portion 105. good. Further, a metal belt (not shown) is wound around the outer periphery of the base portion 105, both ends of the belt are fastened by fastening means (not shown) such as bolts and nuts, and the base portion 105 is fastened by this belt, and the utility pole The adhesion between 102 and the base 105 may be further increased.

  The utility pole ground cover 101 according to the present embodiment is attached as described above, so that the rainwater 110 transmitted through the outer peripheral surface of the utility pole 102 is released to the outer peripheral surface of the base 105 and the surface of the umbrella unit 106 is transmitted. Drop to the ground surface 103. The rainwater 110 that has flowed down to the ground surface 103 and the rainwater 111 existing on the ground surface 103 are blocked by the umbrella portion 106 and do not enter the space 109 in the umbrella portion 106.

  Moreover, in the utility pole ground cover 101 of this Embodiment, the umbrella part 106 is formed in the umbrella shape extended from the base part 105 with the raw material which has flexibility (refer FIG.1 and FIG.2). Therefore, in order to check whether or not the gap 104 is generated between the utility pole 102 and the ground surface 103, the operator lifts up with holding the region near the lower edge 107 a of the umbrella portion 106, and It is necessary to visually check the base of 102. In this regard, in the utility pole ground cover 101 of the present embodiment, once the umbrella portion 106 is lifted, the umbrella shape is reversed and the state is maintained. This point will be described with reference to FIG.

  FIG. 3A and FIG. 3B are explanatory diagrams for explaining the principle of the present invention. In general, an umbrella-shaped body 301 as shown in FIG. 3 (a) formed of an elastic sheet-like material formed in an umbrella shape has an umbrella-like shape in which an operator 302 has a region 303 near the outer edge. By applying an external force FU that expands in the radial direction of the body 301 and turns it over, it is inverted by the elasticity of the umbrella body 301 itself, changes to the inverted shape as shown in FIG. 3B, and the state is maintained. Known from experience. Then, the operator 302 holds the region 303 near the outer edge of the inverted umbrella 301 shown in FIG. 3B by hand and applies an external force FD that is opposite to the external force FU. The umbrella-shaped body 301 in this state is normally rotated by the elasticity of the umbrella-shaped body 301 itself to be changed to the umbrella-shaped body 301 as shown in FIG. Are known. The present invention utilizes this principle. And the umbrella part 106 which the utility pole ground cover 101 of 1st embodiment has respond | corresponds to the umbrella-shaped body 301 in Fig.3 (a) and FIG.3 (b).

  FIG. 4 is a front sectional view showing the utility pole ground cover 101 that has been rolled up. Since there is the principle explained based on FIG. 3, when the operator holds the umbrella part 106 and applies an external force FG that turns the umbrella shape upside down in the utility pole ground cover 101 of this embodiment, this umbrella part The umbrella shape of 106 is reversed and the state is maintained. In addition, the operator can restore the original shape by rotating the umbrella portion 106 forward by applying an external force that lowers the umbrella shape in the inverted state to the umbrella portion 106 in the inverted state. .

  In this way, by attaching the utility pole ground cover 101 of the present embodiment to the base of the utility pole 102, the ground surface without causing the rain water 110 flowing on the outer peripheral surface of the utility pole 102 standing outdoors to reach the base of the utility pole 102. The rainwater 110 that escapes to the ground 103 and flows into the space 109 in the umbrella portion 106 through the ground surface 103 is blocked, and the rainwater 110 and 111 is formed in the gap 104 formed between the utility pole 102 and the ground surface 103. It can be prevented from entering. As a result, it is possible to prevent the cavity 112 from being generated and the ground around the utility pole 102 from sinking or the utility pole 102 from falling down.

  Furthermore, the umbrella portion 106 of the utility pole ground cover 101 according to the present embodiment has its umbrella shape reversed and maintained when it is raised, so that there is a gap 104 between the utility pole 102 and the ground surface 103. You can easily check whether or not. As a result, with respect to the utility pole 102 standing in an environment in which the gap 104 is likely to be generated by shaking due to wind, the operator can easily perform the work of inspecting the root of the utility pole 102. The worker then increases whether or not an unprecedented gap 104 is formed between the utility pole 102 and the ground surface 103, or the gap 104 that has already occurred forms a cavity 112 below the ground surface 103. Whether or not there has been a risk of the utility pole 102 collapsing as well as the depression of the ground surface 103, and promptly take measures such as reinforcing the utility pole 102. Can do.

  Next, another embodiment (second embodiment) of the present invention will be described with reference to FIG. In this case, the same parts as those of the first embodiment are denoted by the same reference numerals, and description thereof is also omitted.

  FIG. 5 is an external perspective view of the utility pole ground cover 101 attached to the utility pole 102. The present embodiment is a utility pole ground cover 101 that can be installed not only when the utility pole 102 is installed, but also for the existing utility pole 102. That is, the utility pole ground cover 101 is introduced not from the upper end of the utility pole 102 but from the side of the utility pole 102 so as to be attached to the base portion of the existing utility pole 102.

  As shown in FIG. 5, the utility pole ground cover 101 of the present embodiment has a slit 113 that is continuous with the base portion 105 and the umbrella portion 106. The slit 113 extends in a straight line in the direction of the axis 108 and perpendicular to both the upper edge 114 of the base portion 105 and the lower edge 107a of the umbrella portion 106. The utility pole ground cover 101 of the present embodiment further has an overlap margin 115. The overlap margin 115 is formed to extend from the end regions 101L and 101R of the utility pole ground cover 101 separated by the slits 113 in the direction around the axis of the utility pole ground cover 101. This overlap margin 115 hides the slit 113. Then, when an external force is applied to the utility pole ground cover 101 of the present embodiment, at least one of the base portion 105 and the umbrella portion 106 of the utility pole ground cover 101 is intended to expand in the circumferential direction of the umbrella shape. Furthermore, it has an elastic force that causes a restoring force to shrink and return to its original shape.

  The utility pole ground cover 101 of this Embodiment can be attached also to the utility pole 102 which has already stood outdoors and to which an overhead wire (not shown) is attached. In other words, the operator holds the utility pole ground cover 101 and widens the slit 113 so that the inner peripheral surface of the base portion 105 contacts the outer peripheral surface of the utility pole 102. The base 105 is wound around the outer peripheral surface of the utility pole 102 so as to shrink in the circumferential direction. Subsequently, as in the first embodiment, the operator holds the base portion 105 of the utility pole ground cover 101 in a state of being wound around the power pole 102 and the lower edge of the umbrella portion 106 of the utility pole ground cover 101. It moves below the utility pole 102 until 107a contacts the ground surface 103 and is positioned at the root of the utility pole 102. That is, the lower edge 107a of the umbrella portion 106 also serves as the contact portion 107 in the utility pole ground cover 101 of the present embodiment.

  Even when the utility pole ground cover 101 of the present embodiment is attached to the base of the power pole 102, the rain water flowing on the outer peripheral surface of the power pole 102 is the base as in the case of the power pole ground cover 101 of the first embodiment. The rainwater which flows on the outer peripheral surface of 105 and the surface of the umbrella part 106 and escapes to the ground surface 103 and further flows through the ground surface 103 by the lower edge 107a (contact part 107) of the umbrella part 106 and enters the inner space of the umbrella part 106. Therefore, rainwater can be prevented from entering a gap formed between the utility pole and the ground surface.

  Further, when the umbrella portion is lifted up and the umbrella shape is reversed, the umbrella shape of the umbrella portion 106 is reversed according to the principle described with reference to FIG. 3, and the inverted state is maintained. Can easily check whether there is a gap between the utility pole and the ground surface, and can prevent the ground around the utility pole 102 from sinking or the utility pole 102 from falling down by creating a cavity 112. Can do.

  Furthermore, the utility pole ground cover 101 of this Embodiment is provided with the slit 113, and can expand the base part 105 to the periphery of an axis. Although it has been described above that the utility pole 102 is generally a cylindrical bar shape, strictly speaking, the upper end is slightly thinner than the lower end. For this reason, the outer diameter of the root portion of the electric pole 102 changes depending on the depth of the electric pole 102 embedded in the ground. On the other hand, the utility pole ground cover 101 according to the present embodiment can be attached to the utility pole 102 whose root part has various outer diameters, and rain water can be prevented from entering the gap 104.

  As with the first embodiment, the utility pole ground cover 101 of the present embodiment is also glued between the outer peripheral surface of the utility pole 102 and the inner peripheral surface of the base 105 using an adhesive or the like. A metal belt (not shown) is wound around the outer periphery of the base 105, both ends of the belt are fastened with fastening means (not shown) such as bolts and nuts, and the base 105 is fastened with this belt. Thus, the adhesion between the utility pole 102 and the base 105 may be further enhanced.

  Next, still another embodiment (third embodiment) of the present invention will be described with reference to FIG. In this case, the same parts as those in the first embodiment and the second embodiment are denoted by the same reference numerals, and description thereof is also omitted.

  FIG. 6 is an external perspective view of the utility pole ground cover 101 attached to the utility pole 102. In the utility pole ground cover 101 of the present embodiment, as shown in FIG. 6, the slit 113 connected to the entire base portion 105 and the umbrella portion 106 is inclined with respect to the axis 108 (see FIG. 2) of the base portion 105. It extends. The slit 113 is provided in a linear shape that is inclined with respect to the direction of the axis 108.

  As described above, strictly speaking, the upper end of the electric pole 102 is slightly thinner than the lower end, and the outer diameter of the base portion of the electric pole 102 changes depending on the depth of the electric pole 102 embedded in the ground. On the other hand, when the utility pole ground cover 101 of this embodiment is attached to the utility pole 102, the base 105 expands according to the outer diameter of the base portion of the utility pole 102, and the top of the base 105 separated by the slit 113 is obtained. The corners 114L and 114R of the edge 114 are separated in the circumferential direction of the utility pole 102 by a distance ΔL. Here, in the utility pole ground cover 101 of the present embodiment, the slit 113 is provided in a direction inclined with respect to the axis 108. Therefore, when the end regions 101L and 101R of the utility pole ground cover 101 divided by the slit 113 are displaced vertically, the end surfaces 116L and 116R of the utility pole ground cover 101 divided by the slit 113 are rubbed and contact each other. .

  Similarly to the second embodiment, the utility pole ground cover 101 of the present embodiment is also installed on the outside of the power pole 102 that has an overhead wire (not shown) and is attached to the power pole ground cover 101. The base 105 can be attached by expanding the slit 113 and bringing the inner peripheral surface of the base 105 into contact with the outer peripheral surface of the utility pole 102. Since the base portion 105 is cylindrical, when it is expanded in the direction around the axis, the base portion 105 tries to return to its original shape and winds around the outer peripheral surface of the utility pole 102. Subsequently, as in the first embodiment and the second embodiment, the operator holds the base portion 105 of the utility pole ground cover 101 in a state of being wound around the utility pole 102 and moves it downward to the utility pole 102. Position at the root of 102. At this time, the operator holds the base portion 105 of the utility pole ground cover 101 of the present embodiment and moves it downward to bring a part of the inner peripheral surface of the umbrella portion 106 into contact with the ground surface 103. That is, in the utility pole ground cover 101 of the present embodiment, a region of the inner peripheral surface of the umbrella portion 106 that is in contact with the ground surface 103 is the contact portion 107. Thereafter, the operator shifts the end regions 101L and 101R in accordance with the diameter of the base portion of the utility pole 102, and rubs the end surfaces 116L and 116R. As a result, the umbrella portion 106 of the utility pole ground cover 101 attached to the utility pole 102 expands in a spiral spiral shape in plan view. In this state, the rainwater 110 that has flowed down from the surface of the umbrella portion 106 to the ground surface 103 and the rainwater 111 that exists on the ground surface 103 are blocked by the region of the inner peripheral surface of the umbrella portion 106 that is in contact with the ground surface 103.

  When the utility pole ground cover 101 of this embodiment is attached to the utility pole 102, a metal belt or a wire is wound around the outer periphery of the base portion 105 and the upper portion of the umbrella portion 106, so that the base portion 105 is connected to the slit 113. It is desirable to close a gap generated between the umbrella portion 106.

  Even when the utility pole ground cover 101 of this embodiment is attached to the base of the utility pole 102, the rainwater can be blocked to prevent the rainwater from entering the gap formed between the utility pole and the ground surface. . Further, when the umbrella portion is raised and the umbrella shape is reversed, the inverted state is maintained, so that it is possible to easily check whether or not a gap is generated between the utility pole and the ground surface. Furthermore, the utility pole ground cover 101 of the present embodiment has a bar shape in which the utility pole 102 becomes narrower toward the upper end portion, so that even if the diameter of the mounting position is different from the inner diameter of the base portion 105, a gap due to the slit 113 is formed. It is possible to prevent rainwater from entering inside without causing it.

  Next, still another embodiment (fourth embodiment) of the present invention will be described with reference to FIG. In this case, the same parts as those of the embodiments described so far are denoted by the same reference numerals, and description thereof is also omitted.

  FIG. 7 is an external perspective view of the utility pole ground cover 101 attached to the utility pole 102. In the utility pole ground cover 101 of the present embodiment, as shown in FIG. 7, the slit 113 connected to the entire base portion 105 and the umbrella portion 106 is inclined with respect to the axis 108 (see FIG. 2) of the base portion 105. It extends. In the utility pole ground cover 101 of the present embodiment, the slit 113 protrudes in the direction of the lower edge 107a of the umbrella portion 106 from the linear imaginary line 118 inclined with respect to the axis 108 (see FIG. 2) direction. It is a curved shape.

  The operator can attach the utility pole ground cover 101 of the present embodiment to the base portion of the power pole 102 in the same manner as the power pole ground cover 101 of the third embodiment. Here, the utility pole ground cover 101 of the present embodiment has a curved shape in which the slit 113 protrudes downward. For this reason, when the end faces 116L and 116R are rubbed together, the lower part of the base part 105 swells and the base part 105 becomes tapered. Accordingly, the utility pole ground cover 101 according to the present embodiment is attached to the base of the utility pole 102, so that the outer peripheral surface of the utility pole 102 and the inner circumference of the base 105 are tapered slightly at the upper end portion than the lower end portion. The surface is more closely attached.

  Even when the utility pole ground cover 101 of this embodiment is attached to the base of the utility pole 102, the rainwater can be blocked to prevent the rainwater from entering the gap formed between the utility pole and the ground surface. . Further, when the umbrella portion is raised and the umbrella shape is reversed, the inverted state is maintained, so that it is possible to easily check whether or not a gap is generated between the utility pole and the ground surface. Furthermore, the utility pole ground cover 101 according to the present embodiment has a bar shape in which the utility pole 102 becomes narrower toward the upper end portion. Therefore, even if the thickness of the utility pole 102 at the installation position changes, a gap due to the slit 113 is generated. It is possible to prevent rainwater from entering inside without causing it to enter.

  As a modification of the utility pole ground cover 101 of the second embodiment to the fourth embodiment, in a state where the end faces 116L, 116R of the power pole ground cover 101 formed by the slit 113 are in contact with each other, The end surfaces 116L and 116R may be fastened with scissors so that the end surfaces 116L and 116R are not separated and a gap is not generated.

DESCRIPTION OF SYMBOLS 101 Electric pole ground cover 102 Electric pole 103 Ground surface 105 Base 106 Umbrella part 107 Contact part 108 Axis 113 Slit 118 Virtual line FG External force

Claims (4)

A cylindrical base that is attached to the power pole with its inner peripheral surface in contact with the outer peripheral surface of the power pole;
An umbrella part formed of a flexible material in an umbrella shape extending from the base part, having a contact part in contact with the ground surface at the tip region, and having elasticity that reverses the forward rotation of the umbrella shape by applying an external force to turn over; ,
Power pole ground cover with. Comprising a slit that extends throughout the base and the umbrella,
The utility pole ground cover of Claim 1. The slit is provided in a linear shape inclined with respect to the axial direction.
The utility pole ground cover of Claim 2. The slit is provided in a curved shape that protrudes in the direction of the contact portion from a linear imaginary line that is inclined with respect to the axial direction.
The utility pole ground cover of Claim 2.

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