JP5496685B2

JP5496685B2 - Snake climbing prevention device

Info

Publication number: JP5496685B2
Application number: JP2010000880A
Authority: JP
Inventors: 敏雄弘中
Original assignee: Chugoku Electric Power Co Inc
Current assignee: Chugoku Electric Power Co Inc
Priority date: 2010-01-06
Filing date: 2010-01-06
Publication date: 2014-05-21
Anticipated expiration: 2030-01-06
Also published as: JP2011142715A

Description

本発明は、電柱等の柱状立設体に蛇が登攀することを防止するために有用な蛇登攀防止装置に関する。 The present invention relates to a snake climbing prevention device useful for preventing a snake from climbing on a columnar standing body such as a utility pole.

蛇が電柱の上部の巣中にある卵や雛等を狙って電柱をよじ登り、その際に送電線や配電線に接触すると、地絡事故が発生して電力設備や電力供給先などに膨大な損害を与える恐れがある。このため、蛇の登攀を防止する有効な装置の開発が要請されており、従来においては、様々な蛇登攀防止装置が検討されている。 When a snake climbs a power pole aiming at an egg or chick in the nest of the upper part of the power pole, and touches the power transmission line or distribution line at that time, a ground fault occurs and a huge amount of power facilities or power supply destinations etc. There is a risk of damage. For this reason, development of an effective device for preventing snake climbing is required, and various snake climbing preventing devices have been studied in the past.

例えば、下記する特許文献１においては、電柱の表面に蛇害防止用粘着テープを周回状に貼着し、さらに該蛇害防止用粘着テープより上方位置に碗形状に形成した登はん防止具を取り付け、蛇や野鼠等の小動物がよじ登って送配電線等に接触して惹起する事故を防止する装置が開示されている。 For example, in Patent Document 1 described below, an anti-climbing tool in which an adhesive tape for preventing snake damage is attached to the surface of a utility pole in a circular shape and further formed in a bowl shape above the snake damage preventing adhesive tape. And a device for preventing an accident caused by a small animal such as a snake or a barb climbing up and coming into contact with a transmission / distribution line or the like is disclosed.

また、下記する特許文献２においては、蛇の体表を覆っている多数の腹鱗を引掛けることができないようにし、また、体をＳ字型に湾曲させて押さえ板や突起物間に体を突張らせることができないようにし、さらに腹の中央部を窪ませて吸盤として用いることができないようにするために、横断面円形でかつ表面が平滑な線材によって網状物を構成し、この網状物を構成する線材を金属製または合成樹脂製として、太さを０．５〜２．５ｍｍ、網状物のメッシュを３〜８ｍｍとして、これを電柱の回りに巻き付ける構成が開示されている。 Further, in Patent Document 2 described below, a large number of abdominal scales covering the body surface of the snake cannot be hooked, and the body is curved in an S shape so that the body is interposed between the pressing plate and the protrusions. In order to prevent the projection from being stretched and to prevent the central portion of the belly from being depressed and used as a suction cup, a mesh is formed by a wire having a circular cross section and a smooth surface. A configuration is disclosed in which a wire constituting the object is made of metal or synthetic resin, the thickness is 0.5 to 2.5 mm, the mesh of the mesh is 3 to 8 mm, and this is wound around a utility pole.

特開平５−２３１０４４号公報JP-A-5-231044 実用新案登録第３０７３５８５号公報Utility Model Registration No. 3073585

しかしながら、前者の構成においては、蛇害防止用粘着テープを電柱の回りに粘着させるものであるため、長時間の風雨に晒されると剥離する不都合があり、一旦剥離すると再利用できないものであった。しかも、蛇害防止用粘着テープの忌避剤は、長年月に亘り効果を維持することができないものである。 However, in the former configuration, the adhesive tape for preventing snake damage is adhered around the utility pole, so there is an inconvenience of peeling when exposed to wind and rain for a long time, and once peeled off, it cannot be reused. . Moreover, the repellant of the adhesive tape for preventing snake damage cannot maintain the effect for many years.

また、登はん防止具は碗形状に形成されているので、その構造上、台風等の突風等の影響を受けやすく、破損する恐れがあり、破損した場合にはその破片が飛散して通行人に当たり、怪我させる恐れが懸念される。 In addition, the climbing prevention device is shaped like a kite, so it is easily affected by typhoons and other gusts due to its structure, and may be damaged. There is concern about the danger of being hit and injured.

後者の構成においては、網状物を電柱の回りに巻き付けるものであるが、電柱には接地線等が表出しているため、電柱に密着して取り付けることは難しく、これら接地線等を覆うように取り付ける場合には、網状物の表面に凹凸が形成されてしまい、蛇が登攀できる状態を形成してしまう不都合がある。
さらに、蛇登攀防止装置は、柱状立設体への取付を簡易に行うことができる構成とすることが実用上望ましい。 In the latter configuration, the net is wound around the utility pole, but since the grounding wire etc. is exposed on the utility pole, it is difficult to attach it closely to the utility pole, so as to cover these grounding wires etc. In the case of attachment, there is an inconvenience that irregularities are formed on the surface of the net-like material, and a state where the snake can climb is formed.
Further, it is practically desirable that the snake climbing prevention device has a configuration that can be easily attached to the columnar standing body.

本発明は係る事情に鑑みてなされたものであり、粘着物や忌避剤を用いずに物理的な構造のみで蛇の登攀を効果的に防止することができ、また、電柱に網状物を付設することなく蛇の登攀を防止することが可能な蛇登攀防止装置を提供することを主たる課題としている。また、柱状立設体への取付作業を簡易に行うことができるようにすることをも課題としている。 The present invention has been made in view of such circumstances, and can effectively prevent the climbing of a snake with only a physical structure without using an adhesive or a repellent, and a net is attached to a utility pole. The main object of the present invention is to provide a snake climbing prevention device that can prevent climbing of a snake without doing so. Another object of the present invention is to make it possible to easily perform the attachment work to the columnar standing body.

ところで、蛇は、一般的に、図９の別表に示されるような登攀習性を有することが知られている。
すなわち、蛇は、
（１）柱状立設体の中心軸が重力方向に対して前方へある程度傾いていれば、昇柱することが可能である。逆に、後方へある程度傾いていれば（蛇の背が下側にくるように傾いていれば）、昇柱することができない。
（２）電柱の上下で隣り合う昇降金具が斜めにずれて取り付けられている場合には、下側の昇降金具に身体を引っ掛けて固定し、斜め上方の昇降金具へ頭部を伸ばし、この上方の昇降金具に頭部が到達すれば、その昇降金具に頭部側の身体を引っ掛け固定し、下方側の身体を引き上げ、以後、当該運動を繰り返して電柱を登攀していく。
（３）電柱の上下で隣り合う昇降金具が鉛直線上に取り付けられている場合には、下側の昇降金具に辿り着いた蛇は、昇降金具に身体を引っ掛けて固定し、真上方向の昇降金具に頭部を伸ばす。この際、蛇は、蛇行しながら腹鱗（腹板）を電柱表面の微細な凹凸部に引っ掛け、折れ曲がっている身体を徐々に伸ばしていき、頭部が、次の昇降金具に到達すれば、その昇降金具に身体を引っ掛けて固定し、下方側の身体を引き上げ、以後、当該運動を繰り返して電柱を登攀していく。
（４）壁面に存在する多数の突起に，蛇の体表を覆っている多数の腹鱗（腹板）を引掛け，それを支えとして登っていく。尚、直径が０．０５〜１［ｍｍ］程度の微細な球形状のものに腹鱗（腹板）を係合させることができない。
（５）長い胴体をＳ字型に湾曲させ，壁面の突起物の間に体を突張らせて体を支えることにより登る。
（６）腹部の中央を窪ませて吸盤状とすることにより体を支えて登る。 Incidentally, snakes are generally known to have climbing habits as shown in the attached table of FIG.
That is, the snake
(1) If the central axis of the columnar standing body is tilted to some extent forward with respect to the direction of gravity, it is possible to climb the column. On the other hand, if it is tilted backwards to some extent (if it is tilted so that the back of the snake is on the lower side), it cannot climb up.
(2) When the lifting brackets adjacent to the upper and lower sides of the utility pole are attached obliquely, the body is hooked and fixed on the lower lifting bracket, and the head is extended diagonally above the lifting bracket. When the head reaches the lifting bracket, the body on the head side is hooked and fixed on the lifting bracket, the lower body is pulled up, and thereafter the movement is repeated to climb the utility pole.
(3) When the lifting brackets adjacent to the top and bottom of the utility pole are mounted on the vertical line, the snake that arrives at the lower lifting bracket will be hooked and fixed on the lifting bracket, and lifted in the upward direction. Extend the head to the bracket. At this time, the snake hooks the belly scale (abdominal plate) on the fine irregularities on the surface of the power pole while meandering and gradually stretches the bent body, and if the head reaches the next lifting bracket, The body is hooked and fixed on the lifting bracket, the lower body is pulled up, and thereafter, the exercise is repeated to climb the utility pole.
(4) Hook many belly scales (abdominal plates) covering the surface of the snake on many protrusions on the wall, and use it as a support. In addition, the abdominal scale (abdominal plate) cannot be engaged with a fine spherical shape having a diameter of about 0.05 to 1 [mm].
(5) Climb a long torso by bending it into an S-shape and supporting the body by stretching the body between the protrusions on the wall.
(6) Climb while supporting the body by sinking the center of the abdomen into a sucker shape.

本発明者は、このような蛇の登攀習性を把握した上で、粘着物や忌避剤を用いずに物理的な静的構造のみで蛇の登攀を効果的に防止できる登攀防止装置について鋭意研究を重ねた結果、蛇の登攀を防止するためには、前記図９の別表で示す（１）に対する対策と、（２）〜（６）のいずれかに対する対策とを併せ持つようにすれば、非常に優れた登攀防止が図れるとの知見を見出し、また、蛇登攀防止装置を、柱状立設体に分割部材を組み合わせた筒状にして取り付けることができれば、柱状立設体への設置も容易に行うことができることを見い出し、本発明を完成させるに至った。 The present inventor has earnestly researched a climbing prevention device that can effectively prevent the climbing of a snake with only a physical static structure without using an adhesive or a repellent after grasping the climbing habit of such a snake. As a result, in order to prevent the climbing of the snake, it is necessary to have a countermeasure against (1) shown in the separate table of FIG. 9 and a countermeasure against any of (2) to (6). If it is possible to install a snake climbing prevention device in a cylindrical shape in which a split member is combined with a columnar standing body, it is easy to install on the columnar standing body. It has been found that this can be done, and the present invention has been completed.

すなわち、本発明に係る蛇登攀防止装置は、柱状立設体に取り付けられて、蛇の登攀を防止する装置であって、前記柱状立設体の周囲に付設されると共に、上方に向かうにつれて柱状立設体の軸心からの距離が長くなり、垂線が水平に対して下方に傾斜する円錐テーパを備えた複数の中空円筒構成部材を着脱自在に組み付けて構成された中空円筒部材を備え、この中空円筒部材の外面の適所に蛇の登攀を妨害する蛇登攀妨害突起を備えていることを特徴としている。 That is, the snake climbing prevention device according to the present invention is a device that is attached to a columnar standing body to prevent the snake climbing, and is attached to the periphery of the columnar standing body, and is columnar as it goes upward. A hollow cylindrical member formed by detachably assembling a plurality of hollow cylindrical constituent members each having a conical taper in which the distance from the axial center of the standing body is long and the perpendicular is inclined downward with respect to the horizontal, The present invention is characterized in that a snake climbing obstruction projection that obstructs snake climbing is provided at a suitable position on the outer surface of the hollow cylindrical member.

したがって、中空円筒構成部材には、上方に向かうにつれて柱状立設体の軸心からの距離が長くなり、垂線が水平に対して下方に傾斜する円錐テーパが設けられているので、前記（１）に対する対策が講じられており、また、中空円筒構成部材の外面には蛇の登攀を妨害する蛇登攀妨害突起が適所に適切な間隔で設けられているので、前記（４）および（６）に対する対策が講じられている。このため、それぞれの物理的な構造による登攀防止機能により蛇の登攀は防止され、仮に、一方の登攀防止機能が不十分であっても、他の登攀防止機能も備えているので、蛇の登攀をより確実に防止することが可能となる。また、中空円筒部材は、複数の中空円筒構成部材を着脱自在に組み付けて構成されているので、柱状立設体への取付作業を容易に行うことが可能となる。 Therefore, the hollow cylindrical component member is provided with a conical taper in which the distance from the axial center of the columnar standing body becomes longer as it goes upward, and the perpendicular is inclined downward with respect to the horizontal. In addition, since snake climbing obstructions that obstruct snake climbing are provided at appropriate positions on the outer surface of the hollow cylindrical component, the above-mentioned (4) and (6) Measures are taken. For this reason, the climbing prevention function by each physical structure prevents the climbing of the snake. Even if one of the climbing prevention functions is insufficient, the other climbing prevention function is also provided. Can be more reliably prevented. Further, since the hollow cylindrical member is configured by detachably assembling a plurality of hollow cylindrical constituent members, it is possible to easily perform the attaching operation to the columnar standing body.

また、柱状立設体が電柱等のように末広がりとなっている場合に対応するため、中空円筒構成部材の内面を、柱状立設体の軸方向の下側半分において柱状立設体と同一のテーパ面に形成し、上側半分において鉛直に形成されている。このような構成においては、取り付け作業が容易になると共に、下側半分のテーパ面が柱状立設体の側面に密着させた状態で固定されるので、ガタつきを無くし、強固に固定させることが可能となる。
Further, in order to cope with the case where the columnar standing body is widened like a utility pole, the inner surface of the hollow cylindrical component is the same as the columnar standing body in the lower half of the columnar standing body in the axial direction. It is formed on a tapered surface and is formed vertically in the upper half . In such a configuration, the mounting work is facilitated and the lower half taper surface is fixed in close contact with the side surface of the columnar standing body, so that it is possible to eliminate rattling and firmly fix it. It becomes possible.

ここで、中空円筒構成部材は、中空円筒部材を柱状立設体の軸方向に沿って２分割したものとし、それぞれの分割面を、一方の柱状立設体の分割面が他方の柱状立設体の分割面と互いに噛み合う凹凸形状とし、噛み合わせた部分がそれぞれの中空円筒構成部材の分割面を過る上下方向に延びる割りピンにより固定されるようにしてもよい。
Here, the hollow cylindrical member is obtained by dividing the hollow cylindrical member into two along the axial direction of the columnar standing body, and the divided surfaces of each columnar standing body are the other columnar standing body. An uneven shape that meshes with the split surface of the body may be used, and the meshed portion may be fixed by a split pin that extends in the vertical direction across the split surface of each hollow cylindrical component.

このような構成においては、中空円筒構成部材間の位置決めが容易になり、また、割りピンの取り付けにより組み付けた状態を固定させることができるので、蛇登攀防止装置の取り付け作業を容易に行うことが可能となる。 In such a configuration, positioning between the hollow cylindrical constituent members becomes easy, and the assembled state can be fixed by attaching the split pins, so that the attachment work of the snake climbing prevention device can be easily performed. It becomes possible.

このような２分割構造においては、中空円筒部材を、前記柱状立設体との間に水抜き穴が形成される第１の中空円筒構成部材と、前記柱状立設体との間に接地線挿通穴が形成される第２の中空円筒構成部材との中から選択された２つの中空円筒部材を組み合わせて形成するとよい。例えば、第１の中空円筒構成部材と第２の中空円筒構成部材を１つずつ選択してこれらを組み合わせることで、水抜き穴と接地線挿通穴との両方を有する中空円筒部材を構成するようにしても、また、接地線がない柱状立設体の場合であれば、第１の中空円筒構成部材を２つ選択して、これらを組み合わせることで、２つの水抜き穴を有する中空円筒部材を構成するようにしてもよい。 In such a two-divided structure, the hollow cylindrical member is grounded between the first hollow cylindrical component member in which a drain hole is formed between the columnar standing body and the columnar standing body. It is good to form combining the two hollow cylindrical members selected from the 2nd hollow cylindrical structural member in which an insertion hole is formed. For example, the first hollow cylindrical component member and the second hollow cylindrical component member are selected one by one and combined to form a hollow cylindrical member having both a drain hole and a ground wire insertion hole. However, in the case of a columnar standing body having no ground wire, a hollow cylindrical member having two drain holes is obtained by selecting two first hollow cylindrical components and combining them. You may make it comprise.

また、中空円筒部材の上端部においては、中空円筒構成部材の内面と柱状立設体の外面との隙間に楔を嵌合させることが好ましい。このような構成においては、楔を中空円筒構成部材の内面と柱状立設体の外面との隙間に嵌挿させることで、柱状立設体の所定位置に取り付けられた中空円筒部材が下方からの力で上方へ移動してしまう不都合を回避することが可能となり、また、中空円筒部材の軸心を柱状立設体の軸心と一致させることができ（中空円筒部材が柱状立設体に偏って設けられることがなくなる）と共に、強固な取り付け状態を確保することが可能となる。 Moreover, it is preferable to fit a wedge in the gap between the inner surface of the hollow cylindrical component and the outer surface of the columnar standing body at the upper end of the hollow cylindrical member. In such a configuration, the hollow cylindrical member attached to a predetermined position of the columnar standing body is inserted from below by inserting the wedge into the gap between the inner surface of the hollow cylindrical structural member and the outer surface of the columnar standing body. It is possible to avoid the inconvenience of moving upward by force, and the axial center of the hollow cylindrical member can be aligned with the axial center of the columnar standing body (the hollow cylindrical member is biased to the columnar standing body). And a strong mounting state can be secured.

尚、中空円筒構成部材の外面の適所に設けられる蛇登攀妨害突起は、直径０．５〜１ｍｍの半球状の突起を、隣り合う突起との間隔を１ｍｍ程度として前記中空円筒構成部材の外面全体に設けるようにすることが蛇の登攀を防止する上で効果的である。また、中空円筒部材の柱状立設体への取り付け位置は、足場ボルト等がない地表面から１．８ｍの範囲にするとよい。 In addition, the snake climbing hindrance protrusion provided at a suitable position on the outer surface of the hollow cylindrical component member is a hemispherical protrusion having a diameter of 0.5 to 1 mm, and the entire outer surface of the hollow cylindrical component member is set to a distance of about 1 mm between adjacent protrusions It is effective to prevent the snake from climbing. Moreover, it is good for the attachment position to the columnar standing body of a hollow cylindrical member to be the range of 1.8 m from the ground surface without a scaffolding bolt etc.

以上述べたように、本発明に係る蛇登攀防止装置によれば、柱状立設体の周囲に付設されると共に、上方に向かうにつれて柱状立設体の軸心からの距離が長くなり、垂線が水平に対して下方に傾斜する円錐テーパを備えた複数の中空円筒構成部材を着脱自在に組み付けて構成された中空円筒部材で構成し、この中空円筒構成部材の外面の適所に蛇の登攀を妨害する蛇登攀妨害突起を設けたので、物理的な構造のみで複数の登攀防止機能を持たせて、蛇の柱状立設体の登攀を効果的に防止することができ、粘着物や忌避剤が不要になるため、耐久性や永続性に優れたものとなる。また、複数の中空円筒構成部材が着脱自在に組み付けられるだけで、ネットも不要となるので、柱状立設体への設置作業を容易に行うことが可能となる。 As described above, according to the snake climbing preventing device according to the present invention, the distance from the axis of the columnar standing body becomes longer as it goes upward, and the vertical line becomes longer. Consists of a hollow cylindrical member constructed by detachably assembling a plurality of hollow cylindrical constituent members with conical tapers inclined downward with respect to the horizontal, and obstructs climbing of snakes at appropriate positions on the outer surface of the hollow cylindrical constituent members The snake climbing hindrance protrusion is provided, so that it has multiple physical climbing prevention functions with only the physical structure, and can effectively prevent the snake columnar standing body from climbing. Since it becomes unnecessary, it has excellent durability and durability. In addition, since a plurality of hollow cylindrical constituent members are detachably assembled and a net is not required, the installation work on the columnar standing body can be easily performed.

また、中空円筒構成部材の内面は、柱状立設体の軸方向の下側半分において柱状立設体と同一のテーパ面に形成され、上側半分において鉛直に形成されているので、柱状立設体への取り付け作業が容易になると共に、下側半分のテーパ面が柱状立設体の側面に密着した状態で固定されることになり、ガタつきが無くなり、柱状立設体に対して強固に固定させることが可能となる。
Further, the inner surface of the hollow cylindrical component member is formed in the same tapered surface as the columnar standing body in the lower half of the columnar standing body in the axial direction and vertically formed in the upper half, so the columnar standing body The taper surface of the lower half is fixed in close contact with the side surface of the columnar standing body, and there is no backlash and it is firmly fixed to the columnar standing body. It becomes possible to make it.

さらに、中空円筒構成部材を、中空円筒部材を柱状立設体の軸方向に沿って複数分割したものとし、隣り合う中空円筒構成部材のそれぞれの分割面を、一方の柱状立設体の分割面が他方の柱状立設体の分割面と互いに噛み合う凹凸形状とし、噛み合わせた部分がそれぞれの中空円筒構成部材の分割面を過る上下方向に延びる割りピンにより固定される構成とすれば、中空円筒構成部材同士の位置決めが容易になり、また、割りピンの取り付けにより組み付け状態が固定されるので、蛇登攀防止装置の取り付け作業を容易に行うことが可能となる。
Further, the hollow cylindrical component member is divided into a plurality of hollow cylindrical members along the axial direction of the columnar standing body, and each divided surface of the adjacent hollow cylindrical component members is divided into a split surface of one columnar standing body. Is a concave-convex shape that meshes with the split surface of the other columnar standing body, and the meshed portion is fixed by a split pin that extends in the vertical direction across the split surface of each hollow cylindrical component. Positioning of the cylindrical component members is facilitated, and since the assembled state is fixed by attaching the split pins, the attachment work of the snake climbing prevention device can be easily performed.

例えば、中空円筒部材を２つの中空円筒構成部材で構成する場合においては、柱状立設体との間に水抜き穴が形成される第１の中空円筒構成部材と、柱状立設体との間に接地線挿通穴が形成される第２の中空円筒構成部材との中から選択された２つの中空円筒部材（第１の中空円筒構成部材と第２の中空円筒構成部材、又は、２つの第１の中空円筒構成部材）を組み合わせて形成すれば、各種柱状立設体に対応することが可能となる。 For example, in the case where the hollow cylindrical member is constituted by two hollow cylindrical component members, the first hollow cylindrical component member in which a drain hole is formed between the columnar standing member and the columnar standing member. Two hollow cylindrical members selected from the second hollow cylindrical component having a ground wire insertion hole formed therein (the first hollow cylindrical component and the second hollow cylindrical component, or the two second cylindrical members) If one hollow cylindrical component) is formed in combination, it is possible to cope with various columnar standing bodies.

また、中空円筒部材の上端部において、中空円筒構成部材の内面と柱状立設体の外面との隙間に楔を嵌合させる構成とすれば、中空円筒部材が上方へ移動する不都合を回避することが可能となり、また、中空円筒部材の軸心を柱状立設体の軸心に合わせることができ、また、取り付け状態を強固にすることが可能となる。 Further, if the wedge is fitted into the gap between the inner surface of the hollow cylindrical member and the outer surface of the columnar standing body at the upper end portion of the hollow cylindrical member, it is possible to avoid the disadvantage that the hollow cylindrical member moves upward. In addition, the axial center of the hollow cylindrical member can be aligned with the axial center of the columnar standing body, and the attached state can be strengthened.

図１は、本発明に係る蛇登攀防止装置を電柱に取り付けた状態を示す斜視図である。FIG. 1 is a perspective view showing a state in which a snake climbing prevention device according to the present invention is attached to a utility pole. 図２は、本発明に係る蛇登攀防止装置を電柱に取り付けた状態を示す側面図であり、（ａ）は分割面を正面とする箇所から見た図であり、（ｂ）は（ａ）から９０度周方向に移動した箇所から見た図である。FIG. 2: is a side view which shows the state which attached the snake climbing prevention apparatus based on this invention to the utility pole, (a) is the figure seen from the location which makes a division surface the front, (b) is (a). It is the figure seen from the location which moved 90 degree | times to the circumferential direction. 図３は、蛇登攀防止装置の中空円筒部材を構成する中空円筒構成部材を示す斜視図であり、（ａ）は水抜き穴を構成する水抜き穴用溝が形成された第１の中空円筒構成部材を示す斜視図、（ｂ）は接地線挿通穴を構成する接地線挿通穴用溝が形成された第２の中空円筒構成部材を示す斜視図である。FIG. 3 is a perspective view showing a hollow cylindrical member constituting the hollow cylindrical member of the snake climbing prevention device, wherein (a) is a first hollow cylinder formed with a drain hole groove forming a drain hole. The perspective view which shows a structural member, (b) is a perspective view which shows the 2nd hollow cylindrical structural member in which the groove | channel for ground wire insertion holes which comprises a ground wire insertion hole was formed. 図４は、電柱に取り付けられた蛇登攀防止装置を上方から見た図である。FIG. 4 is a view of the snake climbing prevention device attached to the utility pole as viewed from above. 図５は、蛇登攀防止装置を構成する中空円筒構成部材の固定に用いる割ピンを示す図であり、割ピンを割った状態の（ａ）はその正面図、（ｂ）はその側面図である。FIG. 5 is a view showing a split pin used for fixing a hollow cylindrical component constituting the snake climbing prevention device. FIG. 5A is a front view and FIG. 5B is a side view showing a state where the split pin is broken. is there. 図６は、蛇登攀防止装置を構成する中空円筒部材を固定する楔を示す図であり、（ａ）はその平面図、（ｂ）はその正面図、（ｃ）はその側面図である。FIG. 6 is a view showing a wedge for fixing a hollow cylindrical member constituting the snake climbing prevention device, wherein (a) is a plan view thereof, (b) is a front view thereof, and (c) is a side view thereof. 図７は、中空円筒部材の表面に設けられた蛇登攀妨害突起を示す図であり、（ａ）はその平面図、（ｂ）はその側面図である。7A and 7B are views showing a snake climbing hindrance protrusion provided on the surface of the hollow cylindrical member, wherein FIG. 7A is a plan view and FIG. 7B is a side view thereof. 図８は、電柱に取り付けられる態様を示す図であり、（ａ）は第１の中空円筒構成部材と第２の中空円筒構成部材を組み合わせた例を示す図であり、（ｂ）は２つの第１の中空円筒構成部材を組み合わせた例を示す図である。FIG. 8 is a diagram showing an aspect attached to a utility pole, (a) is a diagram showing an example of combining a first hollow cylindrical component and a second hollow cylindrical component, and (b) shows two It is a figure which shows the example which combined the 1st hollow cylinder structural member. 図９は、蛇の登攀運動を示す表である。FIG. 9 is a table showing the snake climbing movement.

以下、本発明に係る蛇登攀防止装置の実施形態を添付図面を参照しながら説明する。この例では、柱状立設体として、送電線や配電線の電柱を例とし、蛇としては、体長２ｍ、立ち上がる能力を体長の３／４（１．５ｍ）とした場合を想定する。 Embodiments of a snake climbing prevention device according to the present invention will be described below with reference to the accompanying drawings. In this example, a power pole of a transmission line or a distribution line is taken as an example of the columnar standing body, and a case where the length of the snake is 2 m and the rising ability is 3/4 (1.5 m) of the body length is assumed.

図１及び図２において、蛇登攀防止装置１は、電柱２の側面に付設された中空円筒部材３によって構成されている。 In FIG. 1 and FIG. 2, the snake climbing prevention device 1 is constituted by a hollow cylindrical member 3 attached to the side surface of the utility pole 2.

この中空円筒部材３は、図３及び図４にも示されるように、電柱２の所定の高さ位置において、全周に亘って設けられているもので、上方に向かうにつれて電柱２の軸心Ｇからの距離が長くなり、垂線が水平に対して下方に傾斜する円錐テーパ４を備えた複数の中空円筒構成部材５を組み合わせて構成されている。 As shown in FIGS. 3 and 4, the hollow cylindrical member 3 is provided over the entire circumference at a predetermined height position of the utility pole 2, and the axial center of the utility pole 2 as it goes upward. It is configured by combining a plurality of hollow cylindrical constituent members 5 each having a conical taper 4 in which the distance from G becomes longer and the perpendicular is inclined downward with respect to the horizontal.

この例において、中空円筒構成部材５は、中空円筒部材３を電柱２の軸方向に沿って２分割したものが用いられ、上下方向の長さを約１．２ｍとし、円錐テーパ４の傾斜角を電柱２のテーパに合わせて、外側へ同程度の逆テーパが形成されるように設定されている。たとえば、１／７５のテーパを有する電柱２の場合であれば、外側へ１／７５で張り出すように円錐テーパ４が形成されている。 In this example, the hollow cylindrical member 5 is obtained by dividing the hollow cylindrical member 3 into two along the axial direction of the utility pole 2, the vertical length is about 1.2 m, and the inclination angle of the conical taper 4 is Is set so that a reverse taper of the same degree is formed on the outside according to the taper of the utility pole 2. For example, in the case of the utility pole 2 having a taper of 1/75, the conical taper 4 is formed so as to project outward at 1/75.

一方の中空円筒構成部材５は、電柱２との間に水抜き穴６が形成された第１の中空円筒構成部材５ａが用いられ、他方の中空円筒構成部材５は、柱状立設体との間に接地線挿通穴７が形成される第２の中空円筒構成部材５ｂが用いられている。 One hollow cylindrical component member 5 is a first hollow cylindrical component member 5a in which a drain hole 6 is formed between the electric pole 2 and the other hollow cylindrical component member 5 is connected to a columnar standing body. A second hollow cylindrical member 5b is used in which a ground wire insertion hole 7 is formed therebetween.

それぞれの中空円筒構成部材５は、一方の分割面が他方の分割面と互いに噛み合う凹凸形状に形成されているもので、一方の分割面は３つの凸部８と隣り合う凸部間に形成された凹部９とによって構成され、他方の分割面は３つの凹部９と隣合う凹部間に形成された凸部８とによって構成され、一方の分割面の凸部８を他方の分割面の凹部９に嵌合可能となっており、第１の中空円筒構成部材５ａの内面中央部には、水抜き穴６を構成する通路断面が相対的に小さく形成された軸方向に延びる溝１０が形成され、第２の中空円筒構成部材５ｂの内面中央部には、接地線挿通穴７を構成する通路断面が相対的に大きく形成された軸方向に延びる溝１１が形成されている。
また、それぞれの凸部８には、図５に示されるような割ピン１４を挿入するためのピン挿通孔１５が形成されている。この割ピン１４は、中空円筒部材３の軸方向の長さに略等しい長さに形成され、上端部が中空円筒部材３の上面に係止されるように屈曲されており、例えば、黄銅等によって構成されている。 Each hollow cylindrical component 5 is formed in a concavo-convex shape in which one split surface meshes with the other split surface, and one split surface is formed between three convex portions 8 and adjacent convex portions. The other divided surface is constituted by three concave portions 9 and a convex portion 8 formed between adjacent concave portions, and the convex portion 8 of one divided surface is formed as the concave portion 9 of the other divided surface. A groove 10 extending in the axial direction is formed in the central portion of the inner surface of the first hollow cylindrical component 5a. In the central portion of the inner surface of the second hollow cylindrical member 5b, an axially extending groove 11 is formed in which the passage cross section constituting the ground wire insertion hole 7 is formed relatively large.
Each convex portion 8 is formed with a pin insertion hole 15 for inserting a split pin 14 as shown in FIG. The split pin 14 is formed to have a length substantially equal to the length of the hollow cylindrical member 3 in the axial direction, and is bent so that the upper end portion is locked to the upper surface of the hollow cylindrical member 3. It is constituted by.

これら中空円筒構成部材５は、互いの分割面を合わせるように組付けられると、対向する凸部８と凹部９とが噛み合い、また、それぞれの凸部８に形成されたピン挿通孔１５が中空円筒部材３の軸方向で整合し、このピン挿通孔１５に割ピン１４を挿通させて組み付け状態を固定できるようになっている。 When these hollow cylindrical component members 5 are assembled so that their split surfaces are aligned with each other, opposing convex portions 8 and concave portions 9 mesh with each other, and pin insertion holes 15 formed in the respective convex portions 8 are hollow. The cylindrical member 3 is aligned in the axial direction, and the split pin 14 is inserted into the pin insertion hole 15 so that the assembled state can be fixed.

また、それぞれの中空円筒構成部材５（５ａ，５ｂ）の内面には、軸方向の下側半分の部分が電柱２と同一のテーパ角を有するテーパ面１６に形成され、上側半分の部分が鉛直となる鉛直面１７に形成されている。したがって、２つの中空円筒構成部材５ａ，５ｂを組み合わせて電柱２の周面に取り付けられた状態においては、中空円筒構成部材５ａ，５ｂの内面に形成されているテーパ面１６は電柱２の外周面に密接し、中空円筒部材３がそれより下方へずれ落ちないようになっており、また、中空円筒構成部材５ａ，５ｂの内面に形成されている鉛直面１７は、上にいくほど電柱２の外面から離れ、この鉛直面１７と電柱２の外面との間に隙間２１が形成されるようになっている。そして、この隙間２１の適所に中空円筒部材３の上端部から楔２２が嵌入されている。 Further, on the inner surface of each hollow cylindrical component 5 (5a, 5b), the lower half portion in the axial direction is formed as a tapered surface 16 having the same taper angle as that of the utility pole 2, and the upper half portion is vertical. Is formed on the vertical surface 17. Therefore, in a state where the two hollow cylindrical component members 5a and 5b are combined and attached to the peripheral surface of the electric pole 2, the tapered surface 16 formed on the inner surface of the hollow cylindrical component members 5a and 5b is the outer peripheral surface of the electric pole 2. The hollow cylindrical member 3 is prevented from slipping downward below the vertical surface 17 formed on the inner surfaces of the hollow cylindrical component members 5a and 5b. A gap 21 is formed apart from the outer surface and between the vertical surface 17 and the outer surface of the utility pole 2. A wedge 22 is inserted into the gap 21 from an upper end portion of the hollow cylindrical member 3.

この例では、中空円筒部材３は、地表面から足場ボルトのない約１．８ｍまでの範囲に取り付けられるよう内径が設定されており、また、楔２２は、隙間２１に略等間隔に２〜４つ取り付けられており、それぞれの楔２２は、図６に示されるように、電柱２の外周面に当接させる側面を電柱と同一のテーパ角を有するテーパ面２２ａに形成し、中空円筒部材３の内面に当接させる側面を鉛直面２２ｂに形成し、着脱可能作業を容易にするために、上部に引抜用の楔引抜用穴２２ｃが形成されている。 In this example, the hollow cylindrical member 3 has an inner diameter set so as to be attached to a range from the ground surface to about 1.8 m without a scaffold bolt, and the wedge 22 is spaced from the gap 21 at approximately equal intervals. As shown in FIG. 6, each wedge 22 is formed with a tapered surface 22a having the same taper angle as that of the utility pole, as shown in FIG. 3 is formed on the vertical surface 22b, and a wedge pulling hole 22c for pulling is formed in the upper portion in order to facilitate the detachable operation.

さらに、それぞれの中空円筒構成部材５（５ａ，５ｂ）の外面には、図７に示されるように、蛇の登攀を妨害する蛇登攀妨害突起２０が設けられている。この蛇登攀妨害突起２０は、例えば、直径が０．５〜１ｍｍの半球状のもので（この例では１ｍｍ）、隣り合う突起間を１ｍｍ程度離して中空円筒構成部材５の外面全体に接着剤等で後付けすることにより、或いは中空円筒構成部材の成形時に予め一体成形することなどにより形成されている。 Further, as shown in FIG. 7, a snake climbing hindrance protrusion 20 that hinders the climbing of the snake is provided on the outer surface of each hollow cylindrical component 5 (5a, 5b). The snake climbing hindrance protrusion 20 is, for example, a hemispherical one having a diameter of 0.5 to 1 mm (1 mm in this example), and an adhesive is applied to the entire outer surface of the hollow cylindrical component 5 with a distance of about 1 mm between adjacent protrusions. It is formed by retrofitting with, for example, or by integrally forming in advance when forming the hollow cylindrical component.

以上の構成において、蛇登攀防止装置１を電柱２に取り付けるには、まず、第１の中空円筒構成部材５ａと第２の中空円筒構成部材５ｂとを、図８（ａ）に示されるように、電柱２を挟み込むように両側からそれぞれの内面を内側にして嵌め付け、一方の中空円筒構成部材５の凹凸端面を他方の中空円筒構成部材５の凹凸端面に噛み合わせ、その状態で、整合されたピン挿通孔１５に割ピン１４を下方から挿入して上端まで押し込み、割ピン１４を割る。その後、２つの中空円筒構成部材５によって形成された中空円筒部材３を重力に任せて移動できるところまで下方へ移動させ、それぞれの中空円筒構成部材５の内面の下側半分を電柱２の外周面に密接させる。 In the above configuration, in order to attach the snake climbing prevention device 1 to the utility pole 2, first, the first hollow cylindrical component member 5a and the second hollow cylindrical component member 5b are as shown in FIG. 8 (a). The electric poles 2 are fitted so that the inner surfaces thereof are inward from both sides so that the concave and convex end surfaces of one hollow cylindrical component member 5 are engaged with the concave and convex end surfaces of the other hollow cylindrical component member 5 and are aligned in that state. The split pin 14 is inserted into the pin insertion hole 15 from below and pushed to the upper end to break the split pin 14. Thereafter, the hollow cylindrical member 3 formed by the two hollow cylindrical component members 5 is moved downward to a position where it can be moved by gravity, and the lower half of the inner surface of each hollow cylindrical component member 5 is moved to the outer peripheral surface of the utility pole 2. Close to.

その後、それぞれの中空円筒構成部材５の上端部に形成された中空円筒構成部材５の内面と電柱２の外周面との隙間２１に、約９０度の間隔を開けて、周方向の４箇所で楔２２をその鉛直面が中空円筒構成部材５の鉛直面と接触するように圧入すれは、蛇登攀防止装置１の設置は完了する。 Thereafter, the gap 21 between the inner surface of the hollow cylindrical component member 5 and the outer peripheral surface of the utility pole 2 formed at the upper end of each hollow cylindrical component member 5 is spaced at an interval of about 90 degrees at four locations in the circumferential direction. When the wedge 22 is press-fitted so that the vertical surface thereof is in contact with the vertical surface of the hollow cylindrical component 5, the installation of the snake climbing prevention device 1 is completed.

したがって、上述のように設置された蛇登攀防止装置１によれば、中空円筒構成部材５の外面に形成される円錐テーパ４はその垂線が水平に対して下方に傾斜するように設けられているので、図９の（１）に対する対策が講じられており、蛇の登攀を防止することが可能となる。また、中空円筒構成部材５の外表面には、その全面に蛇の登攀を妨害する蛇登攀妨害突起２０が適所に適切な間隔で形成されているので、図９の（４）および（６）に対する対策が講じられており、この点においても、蛇の登攀を防止することが可能となる。 Therefore, according to the snake climbing prevention device 1 installed as described above, the conical taper 4 formed on the outer surface of the hollow cylindrical component 5 is provided such that its perpendicular is inclined downward with respect to the horizontal. Therefore, measures against (1) in FIG. 9 are taken, and it is possible to prevent the snake from climbing. Further, on the outer surface of the hollow cylindrical component 5, snake climbing obstruction projections 20 that obstruct snake climbing are formed on the entire surface at appropriate positions at appropriate intervals, so that (4) and (6) in FIG. In this respect, it is possible to prevent the snake from climbing.

このため、上述のような物理的な構造による登攀防止機能により蛇の登攀を防止することが可能となるので、仮に、いずれかの登攀防止機能が不十分であっても、残りの登攀防止機能により蛇の登攀を確実に防止することが可能となる。 For this reason, since it becomes possible to prevent climbing of a snake by the climbing prevention function by the above physical structures, even if any climbing prevention function is inadequate, the remaining climbing prevention functions Thus, it is possible to reliably prevent the snake from climbing.

また、上述の構成においては、２つの中空円筒構成部材５ａ，６ｂを組み合わせ、割ピン１４を分割面を過るようにピン挿通孔１５に挿通させることで組み付け状態を固定して中空円筒部材３を構成するようにしているので、蛇登攀防止装置１の電柱２への装着作業を簡易に行うことが可能となり、短時間で設置作業を完了させることが可能となる。 Further, in the above-described configuration, the hollow cylindrical member 3 is fixed by combining the two hollow cylindrical component members 5a and 6b and fixing the assembled state by inserting the split pin 14 through the pin insertion hole 15 so as to cross the dividing surface. Therefore, it is possible to easily attach the snake climbing prevention device 1 to the utility pole 2 and to complete the installation work in a short time.

以上の構成においては、接地線が設けられている電柱２に蛇登攀防止装置１を取り付ける例を示したが、接地線が設けられていない電柱においては、図３（a)で示す第１の中空円筒構成部材５ａを２つ用いて、図８（ｂ）に示されるように、電柱２をこれら中空円筒構成部材５ａで挟んで最中合わせ状に組み付けるようにしてもよい。
このような構成においては、水抜き穴６が電柱２の軸に対して対称位置に２箇所設けられるので、中空円筒部材３と電柱２との間に水をいっそう溜まりにくくすることが可能となる。 In the above configuration, an example in which the snake climbing prevention device 1 is attached to the utility pole 2 provided with the ground wire is shown. However, in the utility pole not provided with the ground wire, the first pole shown in FIG. As shown in FIG. 8 (b), two hollow cylindrical component members 5a may be used so that the utility pole 2 is sandwiched between these hollow cylindrical component members 5a and assembled in the middle.
In such a configuration, since the drain holes 6 are provided at two positions symmetrical with respect to the axis of the utility pole 2, it becomes possible to make it more difficult to collect water between the hollow cylindrical member 3 and the utility pole 2. .

尚、上記構成例においては、中空円筒部材３を２つの中空円筒構成部材５によって構成した例を示したが、３つ以上の中空円筒構成部材によって構成するようにしてもよい。また、上述の例では、中空円筒構成部材５を割ピン１４をピン挿通孔１５に差し込んで連結させる構成を示したが、凸部とこれに噛合する凹部の噛み合い形状を工夫して割ピンを用いなくても組み付け状態を固定できるようにしてもよい。
さらに中空円筒構成部材５の円錐テーパ４は、電柱２の径方向に大きく突出させないようにするために、僅かな傾斜角を有する逆テーパとすることが好ましいが、傾斜角は適宜変更してもよい。 In the above configuration example, the hollow cylindrical member 3 is configured by two hollow cylindrical component members 5, but may be configured by three or more hollow cylindrical component members. In the above example, the hollow cylindrical component 5 is connected to the split pin 14 by inserting the split pin 14 into the pin insertion hole 15. However, the split pin is designed by devising the meshing shape of the convex part and the concave part meshing with the convex part. The assembled state may be fixed without using it.
Further, the conical taper 4 of the hollow cylindrical component 5 is preferably a reverse taper having a slight inclination angle so that it does not protrude greatly in the radial direction of the utility pole 2, but the inclination angle may be changed as appropriate. Good.

１蛇登攀防止装置
２電柱
３中空円筒部材
４円錐テーパ
５中空円筒構成部材
６水抜き穴
７接地線挿通穴
８凸部
９凹部
１６テーパ面
２０蛇登攀妨害突起
２１隙間
２２楔 DESCRIPTION OF SYMBOLS 1 Snake climbing prevention apparatus 2 Electric pole 3 Hollow cylindrical member 4 Conical taper 5 Hollow cylindrical structural member 6 Drain hole 7 Ground wire insertion hole 8 Convex part 9 Concave part 16 Tapered surface 20 Snake climbing obstruction protrusion 21 Crevice 22 Wedge

Claims

A snake climbing prevention device that is attached to a columnar standing body and prevents snake climbing,
A plurality of hollow cylinders provided around the columnar standing body and having a conical taper in which the distance from the axial center of the columnar standing body becomes longer toward the upper side and the perpendicular is inclined downward with respect to the horizontal. A hollow cylindrical member configured by detachably assembling the constituent members is provided,
A snake climbing obstruction projection that obstructs snake climbing is provided at a suitable place on the outer surface of the hollow cylindrical member ,
The inner surface of the hollow cylindrical component is characterized in that the lower half in the axial direction of the columnar standing body is formed on the same tapered surface as the columnar standing body, and the upper half is formed vertically. Snake climbing prevention device.

The hollow cylindrical component member is obtained by dividing the hollow cylindrical member into two along the axial direction of the columnar standing body, and each divided surface is divided into one hollow cylindrical component member and the other hollow cylinder. No irregularities meshing with each other and the split surface of the structure member, engaged so portions are according to claim 1, characterized in that it is fixed by split pin extending in the vertical direction crosses the divided surfaces of each of the hollow cylindrical component Snake climbing prevention device.

The hollow cylindrical member is a second hollow cylindrical component in which a drain hole is formed between the columnar standing body and a second ground hole insertion hole formed between the columnar standing body. 3. The snake climbing prevention apparatus according to claim 2 , wherein the hollow cylinder constituent member is a combination of two hollow cylindrical members selected from the above.

The snake climber according to any one of claims 1 to 3 , wherein a wedge is fitted into a gap between an inner surface of the hollow cylindrical member and an outer surface of the columnar standing body at an upper end portion of the hollow cylindrical member. Prevention device.