JP2005016281A - Upright pole made of rubber - Google Patents

Upright pole made of rubber Download PDF

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Publication number
JP2005016281A
JP2005016281A JP2003205549A JP2003205549A JP2005016281A JP 2005016281 A JP2005016281 A JP 2005016281A JP 2003205549 A JP2003205549 A JP 2003205549A JP 2003205549 A JP2003205549 A JP 2003205549A JP 2005016281 A JP2005016281 A JP 2005016281A
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Japan
Prior art keywords
pole
screw
road surface
hollow
screw portion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
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JP2003205549A
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Japanese (ja)
Inventor
Yasuyoshi Ichiba
靖悦 市場
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INB PLANNING KK
Original Assignee
INB PLANNING KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by INB PLANNING KK filed Critical INB PLANNING KK
Priority to JP2003205549A priority Critical patent/JP2005016281A/en
Publication of JP2005016281A publication Critical patent/JP2005016281A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a safety guide sign elastically recovered without breaking when colliding with or coming into contact with an automobile, a person, a cart or other objects, and returned into the original position. <P>SOLUTION: A pole for identifying a lane and a road zone is made of rubber. Resilient balls are inserted in a hollow of the pole so as to quickly return into the original state when bent, and work of installing the pole can be simultaneously performed while solidifying the ground to the soft ground surface so that the pole does not come off the ground surface caused by impact. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
路面に設置され、人や車の安全誘導標識を提供する。
【0002】
【従来の技術】
ポールは自動道路の分離車線の標識、道路とその他の地域分離標識、立入禁止標識などに使われるもので、中空のプラスチック製、金属及びゴム製品が市販されている。
いずれも、自動車、人、荷車あるいは、その他の物体と衝突したり、折り曲げられる環境下で使われている。
ポール(1)に対して曲げモメントM(9)で衝突又は接触した時、最大の曲げモメントは基点P(10)に働く。
自動車の場合、その運動エネルギーは衝撃エネルギーとして計算するが、これを無視しても自動車の重量W、ポールの高さLとするとモメントMは、Wの関数とLとで次の関係
M=W・L …… 〔1〕となり
金属製のものは、大きく曲げられるか破壊される。Eは自動車のエネルギーであるプラスチック製とゴム製はある程度の弾性曲げ変形が許されるので、曲げモメントに(9)対して大きく曲げられるが、(6)、(7)曲げの曲率半径ρがポール半径Rと次の関係がある場合
ρ=aR …… 〔2〕
a=1であるとき、ポールの引張応力σは
σ=R/d・E…… 〔3〕 がかかり
更に、aが1より小さい時〔3〕式のσは破壊強度を超えてしまう、また破断に至る前の応力であっても弾性回復が不完全になり、元の位置に戻らない欠点がある。
次に、ポールを地面に取付ける工夫が重要であるためポール本体部(1)の直径より大きな面積を持つ支持盤(3)をつけポールの安全性を確保しようとする、この支持盤(3)が美観上良くないことでこれをなくす例が金属製のポールに見受けられる、その代わり地面深く穴を掘りポールの下部を埋め込みコンクリート固化することで固定するなど複雑な作業を行う、従って、地面に取付ける手段としてはポールを安定させる事、即ちポールが抜けたり、衝撃などで取付固定部分が破損することはなく、更に取付け方法が簡単でポールの断面積より大きい支持盤(3)のようなものを使わないことが望ましい。特に地面にはアスファルト面、コンクリート面、及びただの地面があって可能な限りこれらの地面条件に関係なく簡単に取付けることが必要である。
【0003】
【課題を解決する手段】
ある角材(11)が曲がる場合の様子は、一方は引張応力(14)を受け反対側は圧縮応力(15)を受ける、肉厚dの中心軸を縦主軸(12)と言い曲げの中心断面の中心を中立軸(13)と言う。
縦主軸で引張られるか圧縮されるか分けられ中立軸から引張られる側へ距離Yにおける応力σは
σ=E y/ρ …… 〔4〕で
このポイントにおける曲げモメントは
M=E/ρ /AydA …… 〔5〕で、dAは距離Yにおいて、中立軸に平行している微小断面積である(14)、
中空のポールを前記角材(11)に例えると大軒、円筒の中心が縦主軸でYはこの主軸から半径方向の距離であると近似して良い、このポールが曲げモメントMを受けると引張応力は中空分を除いた単位面積であるから
σ×R/Y=E Y/σ 、即ちσ=EY/(Rρ)…〔6〕となる。
〔6〕式でρ=Rの場合、σ=E …… 〔7〕 つまりゴムの弾性定数に相当する応力を受けることになる、一般にこの値は約30kg/cmである、しかしσ<ρ≪Rの範囲で曲げられると理論的には破断してしまう、但反対側には圧縮変形が制限されるのでρが限りなくゼロにはならないいずれにしても引張破断がなくても永久歪みを残すのに十分な条件である、直径2rの球(20)をポールの中空底にはさむ曲げモメントM(21)働くと縦主軸はポールの左半分の肉厚側(22)の厚さの中間線(23)となる、曲げ点は全気球の上部C点(24)と上昇するので、ポールにかかる最大曲げモメントもその分減少する。
曲げモメントM(21)によって曲げ点Cから上部の肉厚部(22)の左半分だけが引張りで新しい縦主軸の右半分とポールの右側肉厚部(25)は圧縮となる、曲げモメントMが大きくてポールが十分曲げられる条件の場合曲率半径はどうなるか、縦主軸でこれを示すと球に対して接線を書くように曲がる(23)−1、一方ポールの右側は球によって押しつぶされながら曲がるが、曲げ応力の直接的な拘束がないのでゴムの反揆で元に戻ろうとするかで、その中心軸(26)は縦主軸(23)−1と接近する(27)。
この時の右側の曲率半径はポールの中の球(20)のそれより小さくなることはない(28)、中空にはさむ球(20)はポール本体ゴムの硬さより、硬いことが望ましく、鋼球でなくても良い。さらに曲げ点を高い位置に持って行きたい場合は球を複数詰めることもできる。あるいは、球でなく、楕円形でもかまわない。
次に地面に取付ける方法として、本発明では軟弱地盤に据付けることをも想定する、軟弱地盤に対しては改めて穴を掘りコンクリートなどで固める方法が一般的に行われるが、ポールを固定するネジ構造で樹脂系の固化剤を注入できるようにした。
ポール下部の中空には、ヘッド(29)を持つメスネジ(30)がゴム体と接着されていて内側にはネジ切りがある(33)、一方地面に打ち込まれるネジ(32)にもヘッド(31)が一体となっていて、同じくネジの内側にネジ切り(34)を有する、このネジ(32)は横穴(35)があって、打込むとき改め固化剤(38)を詰めて置いて弱い地盤に浸透させる。打込む方法は、ヘッド部(31)に回転ドライバーなどのかみ合せヘッドと固定回転できるようにプラス又はマイナスネジ(36)を設けたこのネジは単なる凹凸型でもかまわない。
ポールと下の打込みネジとの固定は、上下のネジ切り(34)にオスネジのボルト止めと各ヘッド部のメスネジ(35)と(37)をボルトで止めることができる、あるいは(36)と(37)を凹凸の形状にして上下かみ合せることもできる、このようにして軟弱地盤を固化剤で固化する作業を簡単に行いながらポールを据付ることを特徴とする。
固化剤は、各種樹脂をエポキシドなどで硬化するもので市販品を用いる。
【0004】
【発明の実施例】
直径80mmφ(39)、高さ(40)が650mm中空直径が64mmのポールで、ポールの底部に接着するネジ(41)の直径が64mm、高さ20mmのものを加硫接着した。曲げを暖和する球は中空の直径と同じく64mmであるが、これを3個詰めた球は改め、硬さ75(ゴム規格)に成形したものである、ポール本体のゴムは天然30%,SBR30%,ゴムチップ40%のブレンドポリマーに、カーボンブラック及び加硫剤を添加して硬度60にした、ここでゴムチップは廃タイヤを0,5mm以下に粉砕したもので、40%を混入した理由は本発明に当り引張応力の詳細な検討結果、引張強度75kg/cm以上であれば良いのでゴムの強度をこのレベルに低下させると同時に材料のコストを安価にするためである、尚ゴムポール本体の成形は前記配合を加圧ニーダで混練し、金型で100kg/cm加圧、湿度を170℃で10分間加硫した、ポールを地面に据付ける為に上部ネジ部(41)をポールの底部から中空にはさみ加硫接着した、この上部ネジは内側(43)がボールト(44)をつけるようにした、この上部ネジは内側(43)がボールト(44)を付けるようにした更に、ヘッド部分には4個のネジ切り穴(45)を設け小さなボールト(48)を付ける、下部ネジは上部ネジと同じくヘッドにネジ切り穴を設け前記小さなボールト(48)でポールが固定されるようにした、同時に真中には前記ボールト(44)が上部ネジと下部ネジを連結する。
この作業は、改め下部ネジを地面に打込んでから行う、下部ネジには、ドライバーなどで回転しながら地面に入るように外側にネジ(46)があり、更に軟弱地盤を固化する固化剤を下部ネジの回転と同時に外へ浸透させるための穴(48)を設けた。
前記穴は、固化剤の粘度を考慮して、回転遠心力が働かない時は外部にもれにくいように1mm以下のピンホールが望ましいが実施例では2mmのものを用いた、実際にはネジを回転しながら固化剤を追加供することもある。
【0005】
【発明の効果】
アスファルト路面に同じくアスファルトとゴム系の固化剤を混合した固化剤を浸透させポールをボールト固定して繰返し曲げ応力を加えてもポールが元の位置に回復した長期使用のため、中空には2個以上の球が効果的であると判断した。
[0001]
BACKGROUND OF THE INVENTION
It is installed on the road surface and provides safety guidance signs for people and vehicles.
[0002]
[Prior art]
Pole is used for signs of separation lanes on motorways, road and other area separation signs, off-limit signs, etc., and hollow plastic, metal and rubber products are commercially available.
Both are used in environments where they collide with or bend cars, people, carts, or other objects.
When the bending moment M (9) collides with or comes into contact with the pole (1), the maximum bending moment acts on the base point P (10).
In the case of an automobile, its kinetic energy is calculated as impact energy. Even if this is ignored, if the weight of the automobile is W and the height of the pole is L, the moment M is a function of W and L, and the following relationship M = W・ L ... [1] and metal objects are greatly bent or destroyed. E is plastic energy, which is the energy of automobiles, and rubber is allowed a certain amount of elastic bending deformation, so it can be bent to a bending moment (9) greatly, but (6), (7) the radius of curvature ρ of the bending is pole When there is the following relationship with the radius R, ρ = aR (2)
When a = 1, the tensile stress σ of the pole is σ = R / d · E (3), and when a is smaller than 1, σ in the formula (3) exceeds the fracture strength, Even if it is the stress before rupture, there exists a fault which elastic recovery becomes incomplete and does not return to the original position.
Next, since it is important to devise a method for attaching the pole to the ground, this support board (3) is intended to secure the safety of the pole by attaching a support board (3) having an area larger than the diameter of the pole body (1). An example of eliminating this because it is not aesthetically pleasing can be found in metal poles, instead it is complicated to dig deep holes in the ground and fix it by embedding the bottom of the pole and solidifying the concrete, so on the ground As a means of mounting, stabilizing the pole, that is, the pole will not come off or the mounting fixing part will not be damaged due to impact, etc. Further, the mounting method is simple and like a support board (3) larger than the cross-sectional area of the pole It is desirable not to use In particular, the ground has asphalt surfaces, concrete surfaces, and just ground, and it is necessary to install them as easily as possible regardless of these ground conditions.
[0003]
[Means for solving the problems]
When a certain square bar (11) is bent, one side receives a tensile stress (14) and the other side receives a compressive stress (15). The central axis of the wall thickness d is called the longitudinal main axis (12), and the central section of the bending The center of is called the neutral axis (13).
The stress σ at the distance Y from the neutral axis to the side to be pulled or compressed by the longitudinal principal axis is σ = E y / ρ (4), and the bending moment at this point is M = E / ρ / Ay 2 dA (5), where dA is a minute cross-sectional area parallel to the neutral axis at a distance Y (14),
If a hollow pole is compared to the square bar (11), it can be approximated that the center of the cylinder is the longitudinal main axis and Y is the radial distance from this main axis. Is a unit area excluding the hollow portion, and therefore, σ × R / Y = E Y / σ, that is, σ = EY 2 / (Rρ) (6).
[6] When ρ = R in equation (6), σ = E (7) That is, a stress corresponding to the elastic constant of the rubber is applied. Generally, this value is about 30 kg / cm 2 , but σ <ρ ≪If it is bent in the range of R, it will theoretically break, but compression deformation is limited on the opposite side, so ρ does not become zero as much as possible. Bending moment M 1 (21) which sandwiches a sphere (20) with a diameter of 2r on the hollow bottom of the pole, which is a sufficient condition to leave, the longitudinal main shaft is of the thickness side (22) on the left half of the pole. Since the bending point, which is the middle line (23), rises to the upper point C (24) of the whole balloon, the maximum bending moment applied to the pole is also reduced accordingly.
Bending moment M 1 (21) is the bending moment, in which only the left half of the upper wall thickness portion (22) is pulled from the bending point C and the right half of the new vertical main shaft and the right wall thickness portion (25) of the pole are compressed. or pole with a large M 1 is what happens to when the curvature radius of sufficiently bendable condition, indicating this vertical spindle bends write a tangent to the sphere (23) -1, whereas the pole of the right crushed by the balls Although it bends, the center axis (26) approaches the longitudinal main axis (23) -1 (27) depending on whether or not it is intended to return to the original state by rumination of rubber because there is no direct constraint of bending stress.
At this time, the radius of curvature on the right side is never smaller than that of the ball (20) in the pole (28), and the ball (20) sandwiched in the hollow is desirably harder than the hardness of the pole body rubber. Not necessarily. If you want to bring the bending point to a higher position, you can pack multiple balls. Alternatively, it may be oval instead of a sphere.
Next, as a method of attaching to the ground, in the present invention, it is also assumed that it is installed on soft ground. For soft ground, a method of digging a hole again and hardening with concrete is generally performed. Resin-based solidifying agent can be injected in the structure.
In the hollow under the pole, a female screw (30) having a head (29) is bonded to a rubber body and there is a thread (33) on the inside, while the screw (32) driven into the ground also has a head (31 ) Is integrated, and also has a thread (34) inside the screw. This screw (32) has a lateral hole (35) and is weakly packed with a new solidifying agent (38) when placed. Infiltrate the ground. As a method for driving in, the screw provided with a plus or minus screw (36) so that the head portion (31) can be fixedly rotated with an engaging head such as a rotary screwdriver may be a concavo-convex type.
The pole and the lower driving screw can be fixed by screwing the male screw and the female screws (35) and (37) of each head to the upper and lower threads (34), or (36) and (36) 37) can be formed into an uneven shape, and can be engaged vertically. Thus, the pole is installed while the work of solidifying the soft ground with the solidifying agent is simply performed.
As the solidifying agent, various resins are cured with epoxides, and commercially available products are used.
[0004]
DETAILED DESCRIPTION OF THE INVENTION
A pole having a diameter of 80 mmφ (39), a height (40) of 650 mm and a hollow diameter of 64 mm, and a screw (41) bonded to the bottom of the pole having a diameter of 64 mm and a height of 20 mm was vulcanized and bonded. The sphere that warms the bend is 64mm, the same as the hollow diameter, but the sphere packed with three of these is modified to a hardness of 75 (rubber standard). The pole body rubber is 30% natural, SBR30 %, Rubber chip 40% blended polymer with carbon black and vulcanizing agent to a hardness of 60, where the rubber chip was crushed waste tire to less than 0.5mm, the reason why 40% was mixed As a result of detailed examination of the tensile stress in the invention, the tensile strength of 75 kg / cm 2 or more is sufficient, so that the strength of the rubber is reduced to this level and at the same time the cost of the material is reduced. the kneading the blend at a pressure kneader, Po of 100 kg / cm 2 pressure in a mold, and 10 minutes vulcanized at 170 ° C. humidity, upper threaded portion for installing a pole on the ground (41) This top screw was fitted with a vault (44) on the inside (43), and the top screw was fitted with a vault (44) on the inside (43). The head part is provided with four screw holes (45) and a small vault (48) is attached. The lower screw is provided with a screw hole in the head like the upper screw and the pole is fixed by the small vault (48). At the same time, in the middle, the vault (44) connects the upper screw and the lower screw.
This work is carried out after the lower screw is driven into the ground. The lower screw has a screw (46) on the outside so as to enter the ground while rotating with a screwdriver, etc., and a solidifying agent for solidifying the soft ground. A hole (48) for allowing the lower screw to penetrate simultaneously with the rotation of the lower screw was provided.
In consideration of the viscosity of the solidifying agent, the hole is preferably a pinhole of 1 mm or less so that it does not easily escape to the outside when the rotating centrifugal force does not work. A solidifying agent may be additionally provided while rotating.
[0005]
【The invention's effect】
Asphalt road surface is also infiltrated with a solidifying agent mixed with asphalt and rubber-based solidifying agent, and the pole is vaulted, and even if repeated bending stress is applied, the pole is restored to its original position. The above spheres were judged effective.

Claims (4)

中空円筒状のゴム製ポール(以下、ポールと称す)が繰返し曲げに対し、すばやく反揆回復し元の直立状態に戻る構造を有し(以下、反揆構造と称す)路面に取り付けるのに、ポールの円形断面より大きくないポール側に接着されるネジ部(以下、ポールネジと称す)と同じく前記ポールの円形断面より大きくない路面に打込まれるネジ部であって、この路面ネジ部が路面に打込まれる際には電気ドライバーによって回転しながら、必要に応じて路面に固化剤を高速で浸透させることを特徴とするポール。A hollow cylindrical rubber pole (hereinafter referred to as “pole”) has a structure that quickly recovers against repetitive bending and returns to its original upright state (hereinafter referred to as “rebellious structure”). A screw portion that is driven into a road surface that is not larger than the circular cross section of the pole, as well as a screw portion that is bonded to the pole side that is not larger than the circular cross section of the pole (hereinafter referred to as a pole screw). A pole characterized by allowing a solidifying agent to permeate the road surface at high speed as needed while rotating with an electric screwdriver when driven. 前記反揆構造がポールを構成するゴムの材質ではなく、ポール本体とは別の球形、または楕円形のものをポールの中空の曲げ点の高さに挟み込むことを特徴とする、前記請求項1の反揆構造。2. The rubbing structure is not a rubber material constituting the pole, but a spherical or elliptical shape different from the pole body is sandwiched between the hollow bending points of the pole. Rumination structure. 前記ポールネジ部は、ポールの下端部に凹凸表面を有し、ポール本体内部に加硫接着されるメスネジであって、一本のオスネジと前記凹凸部分によって路面ネジ部に固定されることを特徴とする請求項1のポールネジ部。The pole screw portion is a female screw that has an uneven surface at the lower end of the pole and is vulcanized and bonded inside the pole body, and is fixed to the road surface screw portion by a single male screw and the uneven portion. The pole screw portion according to claim 1. 前記路面ネジは、中空で下方先端か、目くらの両面ネジ切りで路面に対してはオスネジで、ねじの上端部には前記ポールネジの下端部の凹凸表面と同じ大きさの凹凸表面を有するヘッドであって更に、ネジに横空が空いていて中空の中に改め充填する固化剤を路面深層に浸透させる構造であることを特徴とする請求項1の路面ネジ部。The road surface screw is hollow and has a concavo-convex surface having the same size as the concavo-convex surface of the lower end of the pole screw at the lower end or a male screw with respect to the road surface by double-side threading of the dice, and the upper end of the screw. Further, the road surface screw portion according to claim 1, wherein the screw has a structure in which a horizontal space is empty in the screw and a solidifying agent that is refilled into the hollow is infiltrated into the deep surface of the road surface.
JP2003205549A 2003-06-27 2003-06-27 Upright pole made of rubber Pending JP2005016281A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101794645A (en) * 2009-02-02 2010-08-04 富士胶片株式会社 The method for preparing conducting film

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101794645A (en) * 2009-02-02 2010-08-04 富士胶片株式会社 The method for preparing conducting film
CN101794645B (en) * 2009-02-02 2013-01-23 富士胶片株式会社 Method for producing conductive film

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