JP4739124B2 - Elastic wheel stopper - Google Patents
Elastic wheel stopper Download PDFInfo
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- JP4739124B2 JP4739124B2 JP2006163637A JP2006163637A JP4739124B2 JP 4739124 B2 JP4739124 B2 JP 4739124B2 JP 2006163637 A JP2006163637 A JP 2006163637A JP 2006163637 A JP2006163637 A JP 2006163637A JP 4739124 B2 JP4739124 B2 JP 4739124B2
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Description
本発明は、道路の路側や公園や遊歩道、自転車道等の主として屋外で使用される弾性を有した車止め支柱に関するものである。 The present invention relates to an elastic vehicle stop column that is used mainly outdoors on roadsides, parks, promenades, bicycle paths, and the like.
従来、車両の歩道への進入を物理的又は心理的に防止する車止め支柱に関しては、数多くの発明がなされており、また強固な芯柱の周囲に弾性を有する合成樹脂を用いてカバーを形成し、車両のくい止め力を確保しつつ、車両や歩行者が衝突した場合の衝撃力を緩和する発明もまた種々なされている。 Conventionally, a number of inventions have been made regarding the stop column that physically or psychologically prevents the vehicle from entering the sidewalk, and a cover is formed using a synthetic resin having elasticity around a strong core column. Various inventions have also been made to relieve the impact force when a vehicle or a pedestrian collides while ensuring the vehicle's stopping force.
例えば、特許文献1には、弾性を有する合成樹脂製の中空外装体の中空部の途中まで剛性芯柱が挿入され、前記中空部の下部において前記剛性芯柱と外装体との間に外装保持体を介在させることによって外装体が剛性芯柱に一体的に保持され、中空部の上部には発泡弾性材が充填され、前記剛性芯柱の下部に固定部が設けられてなる弾性車止め支柱が開示されている。 For example, in Patent Document 1, a rigid core column is inserted partway through the hollow portion of a hollow synthetic resin body having elasticity, and the exterior is held between the rigid core column and the exterior body at the lower portion of the hollow portion. The elastic body stop strut is formed by interposing the body so that the exterior body is integrally held by the rigid core column, the upper portion of the hollow portion is filled with foamed elastic material, and the lower portion of the rigid core column is provided with a fixing portion. It is disclosed.
しかしながら、特許文献1に記載の如き弾性車止め支柱では、弾性合成樹脂や合成ゴム、ポリウレタンゴム等のエラストマーを用いて形成された外装保持体が芯柱の外周面全体にほぼ密着して形成されているため、車両の衝突等によって外装体又は外装保持体が破損し、その交換を要する場合、芯柱から抜き取る際の芯柱と外装保持体との摩擦抵抗が大きく、その抜き取り作業には多大な労力を要するという問題点があった。 However, in the elastic vehicle stop column as described in Patent Document 1, an exterior holding body formed using an elastomer such as elastic synthetic resin, synthetic rubber, polyurethane rubber or the like is formed in close contact with the entire outer peripheral surface of the core column. Therefore, when the exterior body or the exterior support body is damaged due to a vehicle collision or the like and needs to be replaced, the frictional resistance between the core column and the exterior support body when extracting from the core column is large, and the extraction work is very large. There was a problem of requiring labor.
そこで本発明は、新規製作時の製作作業および破損時の交換作業を容易になすことができる弾性車止め支柱を提供せんとするものである。 SUMMARY OF THE INVENTION Accordingly, the present invention is to provide an elastic vehicle stopper strut that can easily perform a production work at the time of new production and an exchange work at the time of breakage.
上記目的を達成するために、本発明は次のような構成としている。
すなわち、本発明に係る弾性車止め支柱は、弾性を有する合成樹脂からなる中空形状の支柱本体の下端中空部に芯柱の上部が挿入され、前記下端中空部の内周面に、該内周面と芯柱の外周面との接触を阻止する突条が縦方向に形成されている弾性車止め支柱であって、芯柱の上部が挿入される支柱本体の下部に位置する中空形状の下端中空部を形成する支柱本体の厚みは、それより上部に位置する中空形状の支柱本体の上部の厚みに比べて肉厚に形成され、かつ前記下端中空部の内周面のみに前記突条が形成されていると共に、前記肉厚の下端中空部において、芯柱の上部と支柱本体とが固定されていることを特徴とするものである。
In order to achieve the above object, the present invention is configured as follows.
That is, the elastic bollard strut according to the present invention, the upper portion of the wick pillar is inserted into the lower hollow portion of the hollow strut body made of an elastic synthetic resin, the inner peripheral surface of the lower hollow portion, the inner peripheral surface The elastic lower end hollow part located in the lower part of the pillar main body into which the upper part of a core pillar is inserted is an elastic wheel stop pillar in which the protrusion which prevents contact with the outer peripheral surface of a core pillar is formed in the vertical direction The thickness of the column main body that forms the wall is formed thicker than the thickness of the upper portion of the hollow column main body positioned above it, and the protrusions are formed only on the inner peripheral surface of the lower end hollow portion. In addition, the upper portion of the core column and the column main body are fixed in the hollow portion at the lower end of the wall thickness .
本発明によれば、弾性を有する合成樹脂からなる支柱本体の下端中空部に芯柱の上部を挿入し、前記下端中空部の内周面に、該内周面と芯柱の外周面との接触を阻止する突条を縦方向に形成しているため、突条と芯柱の外周面が接触するので、芯柱の外周面と支柱本体の下端中空部の内周面との接触面積を減じることができ、それによって芯柱の外周面と支柱本体の下端中空部の内周面との摩擦抵抗を小さくすることができるため、新規製作時においては、芯柱の上部に支柱本体の下端中空部を挿入し易く、また、既設の破損した支柱本体を芯柱から抜き取る作業を、それ程労力を要することなしに実施することができる。 According to the present invention, the upper part of the core column is inserted into the lower end hollow portion of the column main body made of a synthetic resin having elasticity, and the inner peripheral surface of the lower end hollow portion is connected to the inner peripheral surface and the outer peripheral surface of the core column. Since the protrusions that prevent contact are formed in the vertical direction, the protrusions and the outer peripheral surface of the core column come into contact with each other, so the contact area between the outer peripheral surface of the core column and the inner peripheral surface of the lower end hollow portion of the column main body is reduced. Since the frictional resistance between the outer peripheral surface of the core column and the inner peripheral surface of the lower end hollow portion of the column main body can be reduced, the lower end of the column main body is placed above the core column at the time of new production. The hollow portion can be easily inserted, and the operation of removing the existing damaged column main body from the core column can be performed without requiring much labor.
本発明の実施の形態について、図面に基づき以下に具体的に説明する。
すなわち、図1は本発明に係る弾性車止め支柱の実施の一形態を示す部分切欠の正面図、図2は図1に示す芯柱の縦断面図、図3(イ)は図1に示す支柱本体の部分切欠の正面図、(ロ)は(イ)の平面図、(ハ)は(イ)の底面図、図4は図3に示す支柱本体の下部の横断面図、図5は本発明に係る弾性車止め支柱の分解説明図である。
Embodiments of the present invention will be specifically described below with reference to the drawings.
That is, FIG. 1 is a front view of a partial cutout showing an embodiment of an elastic wheel stopper post according to the present invention, FIG. 2 is a longitudinal sectional view of a core post shown in FIG. 1, and FIG. 3 (a) is a post shown in FIG. (B) is a plan view of (a), (c) is a bottom view of (a), FIG. 4 is a cross-sectional view of the lower part of the column main body shown in FIG. 3, and FIG. It is decomposition | disassembly explanatory drawing of the elastic wheel stopper support | pillar which concerns on invention.
1は弾性を有する合成樹脂を用いて形成された円筒形状の支柱本体である。2は円形鋼管からなる芯柱であり、3は支柱本体1の上部に取付けられる支柱頭部であり、支柱本体1の下端から前記芯柱2が挿入可能に形成された下端中空部11を、前記芯柱2に所定の長さまで被せて弾性車止めPが形成される。 Reference numeral 1 denotes a cylindrical column main body formed using a synthetic resin having elasticity. 2 is a core column made of a circular steel pipe, 3 is a column head attached to the upper portion of the column body 1, and a lower end hollow portion 11 formed so that the core column 2 can be inserted from the lower end of the column body 1, An elastic wheel stopper P is formed by covering the core column 2 up to a predetermined length.
支柱本体1の上部外周面と下部外周面には、所定の幅の反射シートR1が貼着されており、支柱頭部3には、外側面に周状に凹溝が形成され、その凹溝に適合する大きさの帯状の金属や合成樹脂等にガラスビーズを取付けた反射体R2が巻着されて、車両の前照灯等の光線による再帰反射性を具備させることで夜間における視認性の向上が図られている。 A reflective sheet R1 having a predetermined width is adhered to the upper outer peripheral surface and the lower outer peripheral surface of the column main body 1, and the column head 3 is formed with a concave groove on the outer surface in a circumferential shape. A reflector R2 with a glass bead attached to a band-shaped metal or synthetic resin of a size suitable for the above is wound, and retroreflective by a light beam of a vehicle headlamp or the like is provided, so that visibility at night is improved. Improvements are being made.
また、芯柱2が挿入される支柱本体1の下部に位置する中空形状の下端中空部11を形成する支柱本体1の厚みは、それより上部の支柱本体1の厚みに比べ肉厚に形成され、硬度の高い芯柱3が内挿されている下端中空部11に車両等が衝突した時の衝撃を少しでも緩和できるようになされている。 Further, the thickness of the column main body 1 forming the hollow lower end hollow portion 11 positioned at the lower part of the column main body 1 into which the core column 2 is inserted is formed thicker than the thickness of the column main body 1 above it. The impact when the vehicle or the like collides with the lower end hollow portion 11 in which the core column 3 having high hardness is inserted can be alleviated even a little.
更に、下端中空部11の内周面には縦方向に横断面円弧状の突条12が8本等間隔に形成されている。更にまた、下端中空部11にはその中心を通り水平方向に穿設された取付孔13が2個形成され、そして、芯柱2の側面にも、芯柱2を下端中空部11に挿通した時に、取付孔13と対応する位置に2個の貫通孔21が穿設され、取付孔13と貫通孔21を縫うように固定ボルトBを挿通しナットNに螺着して、支柱本体1と芯柱2とが固定される。 Further, eight protrusions 12 having a circular cross section in the longitudinal direction are formed at equal intervals on the inner peripheral surface of the lower end hollow portion 11. Further, the lower end hollow portion 11 is formed with two mounting holes 13 formed in the horizontal direction through the center thereof, and the core column 2 is also inserted into the lower end hollow portion 11 on the side surface of the core column 2. Sometimes, two through holes 21 are formed at positions corresponding to the mounting holes 13, and the fixing bolts B are inserted through the mounting holes 13 and the through holes 21 so as to be sewn to the nuts N. The core pillar 2 is fixed.
ここで、突条12は、下端中空部11の内周面から内方に突出されて芯柱2の外周面22と下端中空部11の内周面の接触を阻止するものであれば、突条12の横断面形状は特に限定されるものでなく、その本数も限定されるものではない。しかしながら、突条12の横断面形状は、芯柱2の外周面22と下端中空部11の内周面との接触面積をできる限り少なくすることができる断面円弧状のものが好ましく、また、支柱本体1と芯柱2とのガタツキを抑えるには、突条12の本数は、少なくとも3本以上必要であり、下端中空部11の内周面に等間隔に設けるのが好ましい。 Here, if the protrusion 12 protrudes inward from the inner peripheral surface of the lower end hollow portion 11 and prevents contact between the outer peripheral surface 22 of the core column 2 and the inner peripheral surface of the lower end hollow portion 11, The cross-sectional shape of the strip 12 is not particularly limited, and the number thereof is not limited. However, the cross-sectional shape of the ridge 12 is preferably an arc-shaped cross section that can reduce the contact area between the outer peripheral surface 22 of the core column 2 and the inner peripheral surface of the lower end hollow portion 11 as much as possible. In order to suppress backlash between the main body 1 and the core column 2, the number of the ridges 12 is required to be at least three or more, and it is preferable to provide them at equal intervals on the inner peripheral surface of the lower end hollow portion 11.
尚、下端中空部11の内周面に形成された複数の突条12の頂部を結ぶことにより形成できる仮想の円の直径と芯柱2の外径とを比べると、両者はほぼ同一、若しくは芯柱2の外径の方がやや大径とするのが望ましい。かかるようになすことにより、芯柱2に支柱本体1を挿通していく際に、あまり大きな力を要することなく、突条12の頂部が芯柱2の外周面22を若干押圧するように挿着される。逆に、芯柱2の外径が突条12の頂部を結ぶことにより形成できる仮想の円の直径より小径にすると、支柱本体1を芯柱2から抜き取る際に非常に抜き取りやすくなる反面、歩行者等が支柱本体1を揺らすと、ガタがあるため音鳴りが発生したり、支柱本体1の芯柱2に対する保持力が殆ど無くなってしまうので、あまり好ましくない。 In addition, when the diameter of a virtual circle that can be formed by connecting the tops of the plurality of protrusions 12 formed on the inner peripheral surface of the lower end hollow portion 11 is compared with the outer diameter of the core column 2, both are substantially the same, or It is desirable that the outer diameter of the core column 2 be slightly larger. By doing so, it is inserted so that the top of the ridge 12 slightly presses the outer peripheral surface 22 of the core column 2 without requiring a large force when the column body 1 is inserted through the core column 2. Worn. Conversely, if the outer diameter of the core column 2 is smaller than the diameter of a virtual circle that can be formed by connecting the tops of the ridges 12, it becomes very easy to extract the column main body 1 from the core column 2 while walking. When a person or the like shakes the column main body 1, it is not preferable because there is a backlash and noise is generated or the holding force of the column main body 1 to the core column 2 is almost lost.
ここで、支柱本体1の成形に用いられる弾性を有する合成樹脂は、弾性を有するものであれば特に限定されるものではなく、天然ゴムやブタジエンスチレンゴム、ネオプレン、ブタジエンアクリロニトリルゴム、クロロプレン重合体、ブチルゴム、エチレンプロピレンターポリマー、ウレタン樹脂、ポリイソブチレン樹脂、ポリエチレン樹脂、エチレン酢酸ビニル共重合体、シリコン樹脂、軟質及び硬質塩化ビニール樹脂、エラストマー等の各種合成ゴムや合成樹脂等からなる弾性材やそれらを発泡させたもの等を、成形の条件等を考慮して適宜用いてよい。また、廃タイヤ、工場廃材等の再生材料やそれらをチップ状に処理したものを用いてもよい。 Here, the synthetic resin having elasticity used for forming the column main body 1 is not particularly limited as long as it has elasticity. Natural rubber, butadiene styrene rubber, neoprene, butadiene acrylonitrile rubber, chloroprene polymer, Elastic materials made of various synthetic rubbers and synthetic resins such as butyl rubber, ethylene propylene terpolymer, urethane resin, polyisobutylene resin, polyethylene resin, ethylene vinyl acetate copolymer, silicon resin, soft and hard vinyl chloride resin, elastomer, etc. A foam or the like may be appropriately used in consideration of molding conditions and the like. Further, recycled materials such as waste tires and factory waste materials and those obtained by processing them into chips may be used.
また、芯柱2は特に限定されるものではなく、鉄鋼、アルミニウム、ステンレス等の金属や、コンクリート、本石等の強固な材料で形成すれば、物理的に車両の進入を防止する力が大きくなり好ましい。かかる強固な材料は一般に表面硬度が高く、歩行者が衝突すれば歩行者が感じる痛みや怪我の度合いが大きくなる恐れがあるが、芯柱2に支柱本体1を挿入させることで、それらの痛みや怪我の度合いを軽減する効果をより大きいものとできる。また芯柱2を支柱本体1に挿入した状態で路面に立設してもよいし、予め路面に立設された芯柱2に支柱本体1を被せるようにしてもよい。 Further, the core pillar 2 is not particularly limited, and if it is made of a strong material such as a metal such as steel, aluminum or stainless steel, concrete, or main stone, the force to physically prevent the vehicle from entering is large. It is preferable. Such a strong material generally has a high surface hardness, and if the pedestrian collides, the pedestrian may feel a pain or injury, but by inserting the column main body 1 into the core column 2, the pain is injured. And the effect of reducing the degree of injury can be increased. Further, the core column 2 may be erected on the road surface in a state where the column column 2 is inserted into the column main body 1, or the column column 1 may be covered with the core column 2 previously erected on the road surface.
そして、支柱本体1が破損した弾性車止め支柱Pの取替え時には、道路周辺に既存の芯柱2から破損した支柱本体1をそれ程の引き抜き力を要さず引き抜くことができ、新たな支柱本体1を芯柱2に被せて固定ボルトBとナットNで固定すれば、芯柱2を再利用した弾性車止め支柱Pを形成することができる。 Then, when replacing the elastic wheel stopper strut P, whose strut body 1 is damaged, the strut body 1 damaged from the existing core pillar 2 around the road can be pulled out without requiring much pulling force. If the core column 2 is put on and fixed with the fixing bolt B and the nut N, the elastic wheel stopper column P that reuses the core column 2 can be formed.
本発明に係る弾性車止め支柱によれば、弾性を有する合成樹脂からなる支柱本体の下端中空部に芯柱の上部を挿入し、前記下端中空部の内周面に、該内周面と芯柱の外周面との接触を阻止する突条を縦方向に形成しているため、突条と芯柱の外周面が接触するので、芯柱の外周面と支柱本体の下端中空部の内周面との接触面積を減じることができ、それによって芯柱の外周面と支柱本体の下端中空部の内周面との摩擦抵抗を小さくすることができるため、新規製作時においては、芯柱の上部に支柱本体の下端中空部を挿入し易く、また、既設の破損した支柱本体を芯柱から抜き取る作業を、それ程労力を要することなしに実施することができる弾性車止め支柱として、好適に利用することができる。 According to the elastic wheel stopper column according to the present invention, the upper portion of the core column is inserted into the lower end hollow portion of the column main body made of synthetic resin having elasticity, and the inner peripheral surface and the core column are inserted into the inner peripheral surface of the lower end hollow portion. Since the protrusion that prevents contact with the outer peripheral surface of the core column is formed in the vertical direction, the outer peripheral surface of the core column and the outer peripheral surface of the column main body and the inner peripheral surface of the lower end hollow portion of the column main body The area of contact with the core column can be reduced, so that the frictional resistance between the outer peripheral surface of the core column and the inner peripheral surface of the lower end hollow portion of the column main body can be reduced. It is easy to insert the lower end hollow part of the column main body into the column, and it is preferable to use it as an elastic vehicle stop column that can carry out the work of removing the existing damaged column main body from the core column without much labor. Can do.
P 弾性車止め支柱
1 支柱本体
11 下端中空部
12 突条
13 取付孔
2 芯柱
21 貫通孔
22 外周面
3 支柱頭部
P elastic wheel stopper column 1 column body 11 lower end hollow portion 12 ridge 13 mounting hole 2 core column 21 through hole 22 outer peripheral surface 3 column head
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JP2006163637A JP4739124B2 (en) | 2006-06-13 | 2006-06-13 | Elastic wheel stopper |
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