JP2004339783A - Crossing paving plate structure - Google Patents

Crossing paving plate structure Download PDF

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Publication number
JP2004339783A
JP2004339783A JP2003137333A JP2003137333A JP2004339783A JP 2004339783 A JP2004339783 A JP 2004339783A JP 2003137333 A JP2003137333 A JP 2003137333A JP 2003137333 A JP2003137333 A JP 2003137333A JP 2004339783 A JP2004339783 A JP 2004339783A
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Japan
Prior art keywords
core material
pavement
pavement plate
core
track
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JP2003137333A
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Japanese (ja)
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JP4011516B2 (en
Inventor
Minoru Kiyota
穣 清田
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KIYOTA KIDO KOGYO KK
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KIYOTA KIDO KOGYO KK
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Abstract

<P>PROBLEM TO BE SOLVED: To prevent a core material embedded in a pavement board from shorting. <P>SOLUTION: In a rubber crossing pavement board 11 in which lower core materials 22, 23 in the crossing direction of a railroad are embedded in the inside, one core material 23 is divided in the middle between a pair of rails R, R and other core materials 22 are positioned astride over a divided part of a divided core material 23. As the core material 23 is divided, the rails are not shorted between rails R, R. As the other core material 22 resists against a bending stress in the rail way crossing direction in the divided part of the core material 23, the pavement board can secure a specified strength. If a portion facing the pavement board 11 of a fastening tool 4 is covered with an insulation cover 20, the contact of the core material 23 with the fastening tool 4 can be avoided. In the lower part of the rail R, a spacer 29 is inserted between adjacent sleepers 2, the sleeper 2 is restricted in the railway direction, the distance between the end face of the pavement board 11 end face and the fastening tool 4 is kept to prevent damage of the rubber. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
この発明は、踏切などにおいて、線路上に道路の路面を形成する必要がある際に、その線路を構成するレールやマクラギに取り付ける踏切舗装板の構造、及びその踏切舗装板の取付構造に関するものである。
【0002】
【従来の技術】
従来の踏切舗装板は、特許文献1乃至3等に記載され、例えば、本発明の一実施形態を示す図2に基づき説明すると、平板状の舗装板が線路上に固定して使用され、金属製のレール締結具4でマクラギ2に固定された対のレールR,R間の内側に載置される軌間内舗装板11と、レールR,R間の外側に載置される軌間外舗装板12とからなるゴム製のものである。
【0003】
前記両舗装板11,12は、その上を通過する道路交通の荷重に耐え得る強度を有するよう、且つタイヤ等との摩擦による磨耗が著しくならないように、所定の強度、耐久性、耐磨耗性を有するゴムと、その内部に埋設される鋼管製の芯材とから構成される。
【0004】
その芯材は、図13及び図14に示すように、前記線路方向に並列する上部芯材21と、その並列した上部芯材21に直交し、上部芯材21の線路方向両端部をそれぞれ下方で受ける線路横断方向の下部芯材22とからなる。また、軌間外舗装板12に埋設される芯材は、前記線路方向に並列する上部芯材21のみからなる。
【0005】
舗装板11の線路方向両端部には、図15に示すように、支持部19が設けられ、この支持部19がマクラギ2上面に載置される。マクラギ2には、レールRを固定するための締結具4がレールR側面から舗装板11,12側へそれぞれ突出するように取付られているので、前記支持部19には、舗装板11を線路に取り付けた図14に示す状態において、前記締結具4を避けるように切欠き部15が設けられている。
【0006】
前記下部芯材22は、この支持部19内に2本並べて埋設され、図14に示すように、2本の芯材22のうち外側の芯材22は、前記両側の切欠き部15間を結ぶように位置して、その軸方向両端部の妻面(線路横断方向側面)が、それぞれ前記切欠き部15に収納されているレール締結具4側に面するよう埋設されている。また、内側の芯材22は、前記切欠き部15を避けて舗装板の端部25近くまでの長さを有して、その軸方向両端部の側面(線路方向側面)が、前記レール締結具4側に面するよう埋設されている。
【0007】
しかし、線路には列車等による衝撃が繰り返し加わるため、図15に矢印で示すように、締結具4とレールRが滑ってマクラギ2が線路方向に移動することがある。また、保守作業等によりマクラギ2が、意に反して僅かに移動してしまうこともある。このとき、マクラギ2と舗装板11との位置関係は、線路方向にずれるので、図14及び図15に示すように、この舗装板11の端面、つまり前記切欠き部15の内面が金属製の締結具4側面に当接することがある。
【0008】
一般的に、この舗装板を取り付ける線路の対のレールR,Rには、それぞれ微小な電流が流れており、その電流が信号装置等を制御する軌道回路を構成しているため、前記芯材が、レールRや、そのレールRに導通する締結具4に接触することは望ましくない。
【0009】
そこで、このような場合にも、芯材22が前記締結具4に接触してレールRと導通しないよう、埋設される芯材22を舗装板表面に露出しないようにして、その芯材22を囲むゴム素材には、外力に耐え得る充分な強度を有するものを使用している。
【0010】
【特許文献1】
特公平6−39761号公報
【特許文献2】
特公平7−6163号公報
【特許文献3】
実公平7−6162号公報
【0011】
【発明が解決しようとする課題】
しかし、例えば、図7に示すように、マクラギ2が移動して所定の間隔を有さないようになった状況において、図中の浮いた舗装板11を無理に線路に嵌め込もうとすると、図示するように、前記支持部19に締結具4が当たって、切欠き部15内に締結具4が納まらないことがある。この浮いた状態の舗装板11に道路荷重が加わると、支持部19の端部のゴムに集中して荷重が加わり、図7に鎖線で示すように、そのゴムの表層が破れて、舗装板表面に芯材22が露出してしまうことがある。また、このほか、舗装板11の脱着時等において、無理に脱着しようとして、その舗装板11の一部分に通常想定される力以上の力を加えた場合にも、ゴムの表層が破れる恐れがある。
【0012】
このように、芯材22が舗装板11表面に露出すると、その芯材22と締結具4とが接触しやすくなり、1本の芯材22が左右の対のレールR,Rをそれぞれ保持する締結具4,4に同時に接触して、軌道回路を短絡させてしまう危惧がある。
【0013】
そこで、この発明は、舗装板に埋設された芯材が、対のレール間を短絡させないようにすることを課題とする。
【0014】
【課題を解決するための手段】
上記の課題を解決するために、この発明は、上記態様の樹脂製踏切舗装板において、線路のレール間内側に載置される軌間内舗装板の、内部に埋め込んだ線路横断方向の芯材を、線路横断方向に離れるように分割し、その分割した芯材の間に絶縁部を設けたのである。このようにすれば、万が一に、舗装板内部の芯材の両端が、それぞれ両側の締結具に同時に触れても、その分割した芯材の間に絶縁部が介在するので、対のレール間を導通させることはない。
【0015】
また、前記分割した芯材は、その分割した一の芯材の分割部を跨いで、他の芯材を沿わせた構成を採用し得る。このようにすれば、前記一の芯材の分割部において並設される他の芯材が線路横断方向の曲げ応力に抗するので、舗装板は、前記曲げ応力に対する所定の強度を確保し得る。
【0016】
この構成の芯材を埋設した樹脂製の踏切舗装板を製造するために使用するプレス成形用型枠において、前記成形用型枠は、その底板上面に前記芯材を支える突起を設けたものであり、その突起が、前記型枠内に配置した芯材下面と前記底板上面とを所定の距離に維持するようにすれば、プレス成形時に上方から下方に向かって圧力を加えた場合に、樹脂原料内に配置された前記芯材が、型枠底板に向かって下方に移動しない。このため、芯材が舗装板の底に露出せず、また表面からの芯材までの所定の樹脂の厚さを確保し得る。
【0017】
この舗装板を取り付ける線路は、マクラギ上面に取り付けた締結具により対のレールをマクラギに固定したものであり、その対のレール間内側に舗装板を載置する場合において、前記締結具の前記舗装板に面する部分を、絶縁カバーで覆ったものとすれば、舗装板の芯材を覆う樹脂が損傷した場合においても、芯材と締結具との間に絶縁カバーが介在して、両者の接触を回避し得る。
【0018】
また、前記レール下方において、隣接するマクラギ間に間隔保持材を嵌め込むことにより、マクラギが線路方向へ移動しないように拘束すれば、前記舗装板端面と締結具との距離を維持できるので、舗装板と締結具が不用意に擦れ合ってゴムが損傷することを防止し、軌道回路の短絡に対する安全性をさらに高めることができる。
【0019】
【発明の実施の形態】
一実施形態を図1乃至図11に示し、この実施形態の踏切舗装板構造は、図1及び図2に示すように、線路のバラスト3上に配置されたマクラギ2に、金属製の板バネと締結ボルト4aからなるレール締結具4を、マクラギ2両端部にそれぞれ2つ1組で対向させて取り付ける。その両端部にそれぞれ取り付けた2つ1組の締結具の間にレールRをそれぞれ挟んで、前記ボルト4aをマクラギ2のボルト穴にねじ込むことにより、前記板バネがレールベース部7の両側縁をマクラギ2側へ押さえつけて、マクラギ2に対のレールR,Rを固定する。
【0020】
そのマクラギ2に固定された対のレールR,R間内側に軌間内舗装板11を載置し、レールR,R間の外側に軌間外舗装板12を載置して踏切10を構成する。
【0021】
前記両舗装板11,12は、ゴム製のものであり、図1に示すように、マクラギ2上に載置されて、両舗装板11,12のそれぞれレールRに面する部分である線路横断方向(図2に矢印Bで示す方向)端部25,26が、それぞれ弾性変形することにより、前記レールRのベース部7と頭部5との間の凹状の腹部6に上方から下方に向かって嵌められて、その舗装板11,12が、レールRに係止されて線路に固定される。
【0022】
このとき、図1に示すように、前記軌間内舗装板11は、その線路横断方向両端に、その上面がレールR上面よりも低い所定幅の輪縁路部28,28を有しており、前記両端部25,25は、その輪縁路部28,28のそれぞれ線路横断方向端縁に位置して、前記対のレールR,Rの腹部6内面に当接し、頭部5内面には当接しないようになっている。このため、その頭部5の軌間内面側方において、舗装板11との間に所定の隙間を確保して、列車の車輪Fが舗装板11に乗り上げないようにしている。
【0023】
また、軌間外舗装板12は、その線路横断方向の一方の端部26がレールRの腹部6外面に当接するとともに、頭部5外面にも隙間なく当接するようになっている。また、軌間外舗装板12のレールRに面しない他方の端部27は、図1に示すように、踏切10に続く道路面Gの舗装材30に当接して、それ以上レールRから離れる方向に動かないように拘束される。
【0024】
この両舗装板11,12は、図6に示すように、それぞれの端部25,26付近において、レールRに沿ってパイプ孔24が設けられており、レールRと平行な線路方向(図2に矢印Aで示す方向)に隣接して固定された舗装板11,11、又は、舗装板12,12同士のそれぞれパイプ孔24を貫通して、1本のパイプPが挿入されて、線路方向に隣接する舗装板11,11又は、12,12同士がそれぞれ線路方向に連結される。その連結した舗装板11,11又は12,12の線路方向端面に当接する当て板(図示せず)を、前記パイプP両端部に設け、その両当て板をパイプP内に挿入した締めつけ具(図示せず)で引き寄せて、連結された舗装板11,11又は12,12同士を強固に固定する。
【0025】
この舗装板11、12は、その上を通過する道路交通の荷重に耐え得る強度を有するよう、且つタイヤ等との摩擦による磨耗が著しくならないように、所定の強度、耐久性、耐磨耗性を有するゴムと、その内部に埋設される鋼管製の芯材とから構成され、前記芯材間及びその芯材周囲にゴムを介在して所定の形状に整え、内部に芯材を埋設した舗装板を形成している。
【0026】
軌間内舗装板11に埋設される芯材は、図2及び図3に示すように、前記線路方向に所定の間隔で並列する上部芯材21と、その並列した上部芯材21に直交し、上部芯材21の線路方向両端部をそれぞれ下方で受ける線路横断方向の下部芯材22,23とからなる。この上部芯材21と下部芯材22、あるいは上部芯材21と下部芯材23とは、所定の間隔をもって、舗装板11内に配置されており、前記下部芯材22と、それに沿う下部芯材23とは、所定の間隔をもって配置されている。また、軌間外舗装板12に埋設される芯材は、前記線路方向に並列する上部芯材21のみからなる。
【0027】
舗装板11の線路方向両端部には、図4及び図5に示すように、それぞれマクラギ2上面に載置される支持部19が設けられ、支持部19は舗装板11の下面から下方に突出するように設けられて、前記下部芯材22は、この支持部19内に所定の被り厚(舗装板の表面から芯材の表面までのゴムの厚さ)のゴムを介して埋設されている。
【0028】
この支持部19には、図3乃至図5に示すように、支持部19がマクラギ2上のレール締結具4に当たらないように、その前記締結具4を避けるように切欠き部15が設けられている。芯材22及び芯材23は、2本並列して埋設されて、その埋設される位置と、この切欠き部15との位置関係によって、それぞれ線路横断方向の長さが異なる。
【0029】
つまり、図6(b)に示すように、舗装板11を線路に取り付けた状態において、この2本の芯材22、23のうち外側の芯材22は、その軸方向両端部の妻面(線路横断方向側面)が、前記切欠き部15に収納されているレール締結具4に面するように舗装板11内に埋設されている。また、図6(a)に示すように、内側の芯材23は、舗装板の端部25近くまでの長さを有して、その軸方向両端部の側面(線路方向側面)が、前記レール締結具4に面するように舗装板11内に埋設されている。
【0030】
芯材23は、図3又は図4に示すように、軌間内中程で2分割されており、その芯材23分割部の相対する分割面間にはゴムによる絶縁部が介在して、両芯材23,23が接触しないようになっている。また、その芯材23分割部の側方には、前記芯材22が沿っており、その平行する芯材22と芯材23との間にもゴムが介在して、両芯材22,23は接触しないようになっている。
【0031】
なお、一般的な線路では、列車の通過の繰り返しによる振動や、補修作業等による施工誤差により、図7に矢印で示すように、レールRと締結具4が滑ることにより、マクラギ2が線路方向に僅かに移動することがある。このようにマクラギ2が移動すると、例えば、図7に示すように、舗装板11の切欠き部15の端面と締結具4とが接触することがある。このとき、芯材23は、舗装板端面から所定の被り厚のゴムを介して埋設されているので、この状態においても締結具4と芯材23とは接触しないようになっている。
【0032】
また、万が一、芯材23を覆うゴムの損傷等により、前記締結具4を介して、一方のレールRと芯材23とが接触し、且つ同時に他方のレールRと芯材23とが接触しても、芯材23,23間には絶縁部が介在しているので、分割した芯材23,23は導通しない。また、その芯材23の分割部を跨いで平行に配置されている芯材22は、芯材23との間にゴムが介在しているので、芯材23とは導通しないようになっている。このため、前記芯材を介して、対のレールR,R間の短絡は生じない。
【0033】
このとき、舗装板11の線路横断方向への曲げ応力に対して両芯材22,23が抗するので、芯材23の分割部の強度低下を芯材22が補うことができる。
【0034】
また、図7に示すように、前記締結具4は、その締結具4の前記舗装板11の切欠き部15に面する部分に、絶縁機能を有するカバー20を覆うようにしている。
【0035】
この絶縁カバー20は、図8に示すように、締結具4が、舗装板11の切欠き部15に面する部分である、前記板バネ上面を覆う天板20a、及び板バネ線路方向側面を覆う側板20bを有し、天板20aには締結ボルト4aが挿通する孔20cを設けている。その素材には、絶縁性のゴムを使用してもよいし、他の絶縁樹脂を用いてもよい。この絶縁カバー20を取り付けることにより、前記芯材23と締結具4との間に介在する絶縁材の厚さが厚くなって、前記芯材23と締結具4との接触をさらに確実に防ぐことができる。
【0036】
また、その絶縁カバー20の側板20bは、前記切欠き15の端面に面的に接触するので、両者が接触した際に発生する接触部の圧力を分散する。このため、締結具4が舗装板11に食い込んでその舗装板11のゴムを損傷することを防ぐことができる。
【0037】
さらに、図7に示すように、マクラギ2が線路方向に移動した際に、そのマクラギ2の位置を元の位置に戻さずに舗装板11を取り付けると、舗装板11の支持部19下面が、締結具4上面に当接する。このとき、締結具4上面に絶縁カバー20が介在することにより、図中に示す舗装板11の正規の取付高さに対する浮き高さhが大きくなるため、舗装板11の取付状態が不完全であることを目視で発見しやすい効果がある。
【0038】
なお、前記絶縁カバー20は、前述のとおり、絶縁性のゴムあるいは絶縁樹脂を使用することが望ましいが、特に、そのカバーに絶縁機能を求めず、舗装板11への締結具4の食い込み防止機能や、舗装板11が前記締結具4に当接して浮いた状態になった際の視認性向上の効果のみを求める場合には、その素材は絶縁性を有さない素材であってもよい。例えば、ステンレスなど金属性のものであってもよい。
【0039】
また、図7に示すように、線路方向に隣接する舗装板11同士が当接するそれぞれ線路方向側面には、一方の側面に凸状のほぞ部16を設け、その一方の側面が当接する他方の側面には、そのほぞ部16が嵌まる凹状のほぞ穴17を設けている。このほぞ部16がほぞ穴17に嵌まることにより、線路方向に隣接する舗装板11同士が確実に嵌まりあって上下方向に動かないよう安定して固定されるので、舗装板のばたつき等を防ぐことができる。このため、舗装板11と締結具4やマクラギ2等との摩擦により、舗装板表面で芯材22,23を覆っているゴムの損傷を防ぐ。このほぞ部16及びほぞ穴17は、舗装板のばたつきを防止するために、必要に応じて設けることができ、軌間内舗装板11のほか、軌間外舗装板12にも設けてもよい。このほぞ部16及びほぞ穴17の効果は、図15に示す従来の段部13,14の噛み合わせと比較して、両舗装板同士の接触面積が大きくなることによる固定強化の効果があるほか、ほぞ部16の上下面がほぞ穴17に当接しているので、舗装板の上方への動きを抑える効果が大きい。
【0040】
なお、上記の構成において、図9に示すように、マクラギ2が線路方向に移動しないよう、その隣接するマクラギ2間に嵌まるマクラギ間隔保持材29を取り付けた構成を採用し得る。
【0041】
この間隔保持材は図10に示すように、舗装板11,12が載置されない部分であるレールRの直下において、隣接するマクラギ2間に嵌まって、その間隔保持材29の線路方向端面29aが、マクラギ2の線路方向側面に当接して、それ以上、マクラギ2同士の間隔が縮小しないようにするものである。この間隔保持材29を、踏切舗装板の取付範囲に亘って連続して取り付けることにより、マクラギ2の線路方向への移動を防止し、舗装板11の支持部19と締結具4との接触の機会を減らすようにしている。なお、間隔保持材29の上面は、レールRのベース部7下面に当接するようにすれば、間隔保持材29がマクラギ2間においてさらにしっかりと固定されるようになるが、図9に示すように、幾分隙間を設けるようにしてもよい。
【0042】
また、舗装板11,12は、マクラギ2上に載置して適宜係止されるため、すべてのマクラギ2上に均等に載置できるよう、図10に示す、隣接するマクラギ2間の所定の間隔w1に対して、その舗装板11,12の線路方向幅寸法w2は、通常は同寸法としている。このとき、前記マクラギ2間隔w1に対して舗装板寸法w2を、その舗装板に許される公差の範囲で若干小さくするようにした構成を採用し得る。例えば、所定のマクラギ2間隔w1が600mmであるのに対して、舗装板幅寸法w2を599mmに設定するような事例が考えられる。このようにすれば、線路方向に隣接する舗装板同士の、線路方向への軽微な位置調整が容易となる。
【0043】
この舗装板を、プレス成形により製造する際には、例えば、図12に示すように、型枠40内に芯材22,23及びゴム原料を所定の位置に配置し、各種加硫材、補強材等を加えるとともに型枠40を高温の状況下において、プレス成形する手法が用いられる。
【0044】
このとき、舗装板は、型枠40内の各種原料を上方から下方に向かってプレスすることにより製造されるので、そのプレスに伴って他のゴム原料とともに、前記芯材22,23が型枠40の下面42に向かって移動する傾向にある。芯材22,23が下面42に近づくように移動すると、舗装板の下面において、芯材22,23を覆うゴムの厚さが薄くなることがある。芯材22,23の舗装板表面からの被り厚が薄くなることは、線路に載置した状態で締結具4に近接する部分においては好ましくない。
【0045】
このため、図12に示すように、型枠40の底板42上面に前記芯材22,23を支える突起41を設け、その突起41が、前記型枠40内に配置した芯材22,23下面と前記底板42上面とを所定の距離に維持するようにしたのである。舗装板が成形されてこの型枠40から外した後は、舗装板裏面に前記突起41を抜いた穴18が残るので、この部分には適宜、ゴム等を充填しておくことが望ましい。
【0046】
踏切舗装板のプレス成形用型枠として、この型枠40は、ゴム製の舗装板製造には限定されず、他の樹脂製の舗装板の製造にも使用できる。
【0047】
なお、上記の実施形態においては、線路横断方向の芯材を、対のレールR,R間中程で2分割するようにしたが、この芯材の分割は、この実施形態以外の態様も採用し得る。例えば、一の芯材23の分割箇所を増やして、3分割以上としてもよい。また、その分割部の横に他の芯材22が沿っている限りにおいては、舗装板の強度を保つことが可能であるので、一の芯材23と他の芯材22とをそれぞれ分割して、その芯材22と芯材23の分割部の位置が同一箇所に並ばないよう相互にずらすようにしてもよい。また、一の支持部19に埋設される芯材の本数は2本には限定されず、3本以上であってもよいし、舗装板の強度が保たれる限りにおいて、1本であってもよい。線路方向に埋設される上部芯材21を併用する場合には、その上部芯材21の埋設形態は自由であるが、上部芯材21と下部芯材22,23との間には、ゴムを介在させて、接触しないようにすることが望ましい。
【0048】
この実施形態では、ボルト穴を有するマクラギ2にレールRを固定する締結具4を取り付け、その締結具4は、板バネと締結ボルト4aから構成されるものを用いたが、この踏切舗装板構造は、実施形態の線路構造には限定されず、使用するマクラギの種別や締結具の種別、レールの種別等は、舗装板の設計寸法の変更等により自由に選択可能である。また、ゴム製以外の樹脂製の舗装板においても、この踏切舗装板構造を採用することができる。
【0049】
【発明の効果】
この発明は、以上のようにしたので、芯材が対のレール間を短絡させず、また、舗装板の製造工程において、あるいは、舗装板使用時の損傷等により、芯材が表面に露出することを防ぐことができる。
【図面の簡単な説明】
【図1】一実施形態の断面図
【図2】舗装板の取付状態を示す斜視図
【図3】同実施形態の軌間内舗装板の敷設状態を示す平面図
【図4】図3の軌間内舗装板の斜視図
【図5】図3の軌間内舗装板の切断正面図で、(a)はC−C断面、(b)はD−D断面、及び図3の軌間内舗装板の切断側面図で、(c)はE−E断面、(d)はF−F断面
【図6】舗装板の取付状態を示す詳細図で、(a)は図3のC−C断面、(b)は図3のD−D断面
【図7】舗装板の取付状態を示す切断側面図
【図8】絶縁カバーの詳細図
【図9】マクラギ移動防止具の取付状態を示す詳細図
【図10】マクラギ移動防止具の取付状態を示す斜視図
【図11】図2の軌間外舗装板を示し、(a)は平面図、(b)は(a)のG−G断面を示す切断正面図、(c)は(a)のH−H断面を示す切断正面図
【図12】舗装板の成形用型枠の斜視図
【図13】従来例の断面図
【図14】従来例の軌間内舗装板の敷設状態を示す平面図
【図15】従来例の舗装板の取付状態を示す切断側面図
【符号の説明】
2 マクラギ
3 バラスト
4 レール締結具
4a 締結ボルト
5 レール頭部
6 レール腹部
7 レールベース部
8 ボルト
9 舗装板固定具
10 踏切
11 軌間内舗装板
12 軌間外舗装板
13,14 段部
15 切欠き部
16 ほぞ部
17 ほぞ穴
18 充填部
19 支持部
20 絶縁カバー
21 上部芯材
22,23 下部芯材
24 パイプ孔
25,26,27 端部
28 輪縁路部
29 間隔保持材
29a 端面
30 舗装材
40 型枠
41 突起
G 道路面
R レール
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a structure of a railroad crossing pavement plate to be attached to rails and sleepers constituting the railroad when a road surface needs to be formed on the railroad at a railroad crossing, and a mounting structure of the railroad crossing pavement plate. is there.
[0002]
[Prior art]
Conventional railroad crossing pavement boards are described in Patent Documents 1 to 3 and the like. For example, according to FIG. 2 showing an embodiment of the present invention, a flat pavement board is used by being fixed on a track, and a metal is used. Inter-rail pavement plate 11 placed inside the pair of rails R, R fixed to sleeper 2 with rail fasteners 4 made of steel, and outer rail pavement plate placed outside the rails R, R 12 made of rubber.
[0003]
The pavement plates 11 and 12 have a predetermined strength, durability, and abrasion resistance so that the pavement plates 11 and 12 have strength enough to withstand the load of road traffic passing thereover and do not significantly wear due to friction with tires or the like. It is composed of rubber having properties and a core made of steel pipe buried therein.
[0004]
As shown in FIG. 13 and FIG. 14, the core material has an upper core material 21 parallel to the line direction, and the upper core material 21 orthogonal to the parallel upper core material 21, and both ends of the upper core material 21 in the line direction downward. And the lower core member 22 in the cross direction of the track received at the second stage. Further, the core material buried in the outer gauge pavement plate 12 is composed of only the upper core material 21 arranged in parallel in the line direction.
[0005]
As shown in FIG. 15, a support portion 19 is provided at both ends of the pavement plate 11 in the line direction, and the support portion 19 is placed on the upper surface of the sleeper 2. Since the fastener 4 for fixing the rail R is attached to the sleeper 2 so as to protrude from the side surface of the rail R toward the pavement plates 11 and 12, the pavement plate 11 is mounted on the support 19. 14, a notch 15 is provided to avoid the fastener 4. As shown in FIG.
[0006]
Two lower cores 22 are buried side by side in the support portion 19. As shown in FIG. 14, the outer core 22 of the two cores 22 extends between the cutouts 15 on both sides. It is buried so as to be connected so that the wedge faces (side faces in the cross direction of the track) at both ends in the axial direction face the rail fasteners 4 housed in the cutouts 15, respectively. The inner core member 22 has a length up to near the end portion 25 of the pavement plate avoiding the cutout portion 15, and the side surfaces (side surfaces in the line direction) of both ends in the axial direction are fixed to the rail fastening portions. It is embedded so as to face the tool 4 side.
[0007]
However, since the impact of a train or the like is repeatedly applied to the track, the fastener 4 and the rail R may slide and the sleeper 2 may move in the direction of the track, as indicated by arrows in FIG. Further, the sleeper 2 may slightly move unexpectedly due to maintenance work or the like. At this time, since the positional relationship between the sleeper 2 and the pavement plate 11 is shifted in the direction of the track, as shown in FIGS. 14 and 15, the end surface of the pavement plate 11, that is, the inner surface of the notch 15 is made of metal. It may come into contact with the side of the fastener 4.
[0008]
Generally, a minute current flows through each pair of rails R, R of the track to which the pavement plate is attached, and the current forms a track circuit for controlling a signal device and the like. However, it is not desirable to come into contact with the rail R or the fastener 4 that is electrically connected to the rail R.
[0009]
Therefore, even in such a case, the embedded core material 22 is not exposed to the surface of the pavement board so that the core material 22 does not contact the fastener 4 and conduct with the rail R. As the surrounding rubber material, a material having sufficient strength to withstand external force is used.
[0010]
[Patent Document 1]
Japanese Patent Publication No. 6-39661 [Patent Document 2]
Japanese Patent Publication No. 7-6163 [Patent Document 3]
Japanese Utility Model Publication No. 7-6162
[Problems to be solved by the invention]
However, for example, as shown in FIG. 7, in a situation where the sleeper 2 has moved so as not to have a predetermined interval, if the floating pavement board 11 in the figure is to be forcibly fitted into the track, As shown in the drawing, the fastener 4 may hit the support portion 19, and the fastener 4 may not fit in the notch 15. When a road load is applied to the pavement board 11 in the floating state, the load is concentrated on the rubber at the end of the support portion 19, and the surface layer of the rubber is broken as shown by a chain line in FIG. The core material 22 may be exposed on the surface. In addition, when the pavement board 11 is detached or attached, for example, when a force higher than normally assumed is applied to a part of the pavement board 11 in an attempt to forcibly detach the pavement board 11, the rubber surface layer may be broken. .
[0012]
When the core member 22 is exposed on the surface of the pavement board 11 as described above, the core member 22 and the fastener 4 are easily brought into contact with each other, and one core member 22 holds the pair of right and left rails R, R, respectively. There is a danger that the track circuits will be short-circuited by simultaneously contacting the fasteners 4 and 4.
[0013]
Therefore, an object of the present invention is to prevent a core material buried in a pavement plate from causing a short circuit between a pair of rails.
[0014]
[Means for Solving the Problems]
In order to solve the above problems, the present invention provides a resin level crossing pavement plate according to the above aspect, in which a track-side pavement plate placed inside a rail between rails is embedded with a core material in the cross-track direction embedded inside. , And the insulation is provided between the divided cores. By doing so, even if both ends of the core material inside the pavement board simultaneously touch the fasteners on both sides at the same time, the insulating part is interposed between the divided core materials, so the gap between the pair of rails It does not conduct.
[0015]
Further, the divided core material may adopt a configuration in which another divided core material extends along the divided portion of one divided core material. With this configuration, since the other core materials arranged in parallel at the divided portion of the one core material withstand the bending stress in the cross-track direction, the pavement board can secure a predetermined strength against the bending stress. .
[0016]
In a press-molding formwork used for manufacturing a resin level crossing pavement board in which a core material of this configuration is embedded, the forming formwork is provided with a projection for supporting the core material on the bottom plate upper surface. If the projections maintain a predetermined distance between the lower surface of the core material disposed in the mold and the upper surface of the bottom plate, when pressure is applied downward from above during press molding, resin The core material arranged in the raw material does not move downward toward the mold bottom plate. For this reason, the core is not exposed to the bottom of the pavement board, and a predetermined resin thickness from the surface to the core can be ensured.
[0017]
The track to which the pavement plate is attached has a pair of rails fixed to the sleeper with a fastener attached to the upper surface of the sleeper, and when a pavement plate is placed inside the pair of rails, the pavement of the fastener is If the part facing the board is covered with an insulating cover, even if the resin covering the core of the pavement board is damaged, the insulating cover is interposed between the core and the fastener, and the Contact can be avoided.
[0018]
Further, if the sleeper is restrained so as not to move in the direction of the track by inserting a spacing material between adjacent sleepers below the rail, the distance between the end surface of the pavement plate and the fastener can be maintained. It is possible to prevent the rubber from being damaged due to the inadvertent rubbing of the plate and the fastener, and to further increase the safety against short circuit of the track circuit.
[0019]
BEST MODE FOR CARRYING OUT THE INVENTION
One embodiment is shown in FIGS. 1 to 11, and a level crossing pavement plate structure of this embodiment is, as shown in FIGS. 1 and 2, attached to a sleeper 2 arranged on a ballast 3 of a track by a metal leaf spring. And the rail fasteners 4 comprising the fastening bolts 4a are attached to both ends of the sleeper 2 so as to face each other in pairs. The rail R is sandwiched between a pair of fasteners attached to both ends thereof, and the bolts 4a are screwed into the bolt holes of the sleeper 2 so that the leaf springs squeeze both side edges of the rail base portion 7. The rails R, R of the pair are fixed to the sleeper 2 by pressing down on the sleeper 2 side.
[0020]
A railroad crossing 10 is constructed by placing an in-gauge pavement plate 11 inside a pair of rails R, R fixed to the sleeper 2 and an out-of-gauge pavement plate 12 outside between the rails R, R.
[0021]
The both paving boards 11 and 12 are made of rubber, and as shown in FIG. 1, are placed on the sleeper 2 and cross the track which is a part of each of the paving boards 11 and 12 facing the rail R. Direction (the direction indicated by the arrow B in FIG. 2), the ends 25 and 26 are elastically deformed, so that the concave abdomen 6 between the base 7 and the head 5 of the rail R is directed downward from above. The paving boards 11 and 12 are engaged with the rail R and fixed to the track.
[0022]
At this time, as shown in FIG. 1, the in-gauge pavement plate 11 has, at both ends in the crossing direction of the track, wheeled road portions 28, 28 of a predetermined width whose upper surface is lower than the upper surface of the rail R, The two end portions 25, 25 are located at the respective crossing edges of the peripheral road portions 28, 28, and abut against the inner surfaces of the abdomen 6 of the pair of rails R, R and the inner surfaces of the head portion 5. Not to touch. For this reason, a predetermined gap is secured between the head 5 and the pavement plate 11 on the inner side of the rail between the gauges, so that the wheels F of the train do not ride on the pavement plate 11.
[0023]
In addition, one end 26 of the rail-external pavement plate 12 in the crossing direction of the rail contacts the outer surface of the abdomen 6 of the rail R, and the outer surface of the head 5 without gap. In addition, the other end 27 of the off-gauge pavement plate 12 that does not face the rail R contacts the pavement material 30 on the road surface G following the railroad crossing 10 as shown in FIG. Is restrained from moving.
[0024]
As shown in FIG. 6, both paving boards 11 and 12 are provided with pipe holes 24 along the rails R in the vicinity of the ends 25 and 26, respectively. 1), one pipe P is inserted through each of the pavement plates 11 and 11 or the pavement plates 12 and 12 that are fixed adjacent to each other in the pipe hole 24, and are inserted in the line direction. The pavement boards 11 and 11 or 12 and 12 adjacent to each other are connected in the line direction. Patch plates (not shown) that contact the end faces of the connected pavement plates 11, 11 or 12, 12 in the line direction are provided at both ends of the pipe P, and a fastening tool (both of which is inserted into the pipe P) (Not shown)), and the connected pavement plates 11, 11 or 12, 12 are firmly fixed to each other.
[0025]
The pavement plates 11 and 12 have predetermined strength, durability, and abrasion resistance so that the pavement plates 11 and 12 have strength enough to withstand the load of road traffic passing thereover and are not significantly worn due to friction with tires or the like. A pavement comprising a rubber having: and a steel pipe core buried therein, the rubber being interposed between the cores and around the core to form a predetermined shape, and a core buried therein. A plate is formed.
[0026]
As shown in FIGS. 2 and 3, the core buried in the pavement plate 11 between the rails is, as shown in FIGS. The upper core member 21 includes lower core members 22 and 23 in the transverse direction of the line which receive both ends of the upper core member 21 in the line direction below. The upper core member 21 and the lower core member 22 or the upper core member 21 and the lower core member 23 are arranged in the pavement plate 11 at a predetermined interval, and the lower core member 22 and the lower core member The member 23 is arranged at a predetermined interval. Further, the core material buried in the outer gauge pavement plate 12 is composed of only the upper core material 21 arranged in parallel in the line direction.
[0027]
As shown in FIGS. 4 and 5, at both ends of the pavement plate 11 in the line direction, support portions 19 mounted on the upper surface of the sleeper 2 are provided, and the support portions 19 project downward from the lower surface of the pavement plate 11. The lower core member 22 is embedded in the support portion 19 via a rubber having a predetermined covering thickness (the thickness of the rubber from the surface of the pavement plate to the surface of the core member). .
[0028]
As shown in FIGS. 3 to 5, the support portion 19 is provided with a notch 15 so as not to hit the rail fastener 4 on the sleeper 2 so as to avoid the fastener 4. Have been. The core material 22 and the core material 23 are buried side by side, and the length in the line crossing direction differs depending on the buried position and the positional relationship with the notch 15.
[0029]
That is, as shown in FIG. 6B, in a state where the pavement plate 11 is attached to the track, the outer core material 22 of the two core materials 22 and 23 has the end faces (at both ends in the axial direction). The side surface in the cross direction of the track) is embedded in the pavement board 11 so as to face the rail fastener 4 housed in the cutout 15. Further, as shown in FIG. 6A, the inner core material 23 has a length up to near the end 25 of the pavement plate, and the side surfaces (side surfaces in the line direction) of both ends in the axial direction are the same as those of the above. It is embedded in the pavement board 11 so as to face the rail fastener 4.
[0030]
As shown in FIG. 3 or FIG. 4, the core 23 is divided into two parts in the middle of the gauge, and an insulating part made of rubber is interposed between opposing divided surfaces of the divided part of the core 23. The core members 23 are not in contact with each other. The core material 22 extends along the side of the divided portion of the core material 23, and rubber is interposed between the parallel core material 22 and the core material 23, so that the two core materials 22, 23 are provided. Is designed not to touch.
[0031]
In addition, in a general track, the rail R and the fastener 4 slide as shown by an arrow in FIG. 7 due to vibration due to repeated passage of the train and construction errors due to repair work and the like, so that the sleeper 2 moves in the track direction. May move slightly. When the sleeper 2 moves in this way, for example, as shown in FIG. 7, the end face of the notch 15 of the pavement plate 11 may come into contact with the fastener 4. At this time, since the core material 23 is buried from the end surface of the pavement plate via rubber having a predetermined covering thickness, the fastener 4 and the core material 23 do not come into contact even in this state.
[0032]
Also, in the unlikely event that the rubber covering the core material 23 is damaged, the one rail R and the core material 23 come into contact with each other via the fastener 4 and at the same time, the other rail R and the core material 23 come into contact with each other. However, since the insulating portions are interposed between the core members 23, the divided core members 23 do not conduct. Further, the core member 22 arranged in parallel across the divided portion of the core member 23 does not conduct with the core member 23 because rubber is interposed between the core member 23 and the core member 23. . Therefore, no short circuit occurs between the pair of rails R, R via the core material.
[0033]
At this time, the cores 22 and 23 resist the bending stress of the pavement plate 11 in the cross direction of the track, so that the core 22 can compensate for the decrease in the strength of the divided portion of the core 23.
[0034]
As shown in FIG. 7, the fastener 4 covers the notch 15 of the pavement plate 11 of the fastener 4 with a cover 20 having an insulating function.
[0035]
As shown in FIG. 8, the insulating cover 20 includes a top plate 20 a that covers the upper surface of the leaf spring, which is a portion where the fastener 4 faces the notch 15 of the pavement plate 11, and a side surface in the leaf spring line direction. The top plate 20a has a hole 20c through which the fastening bolt 4a is inserted. As the material, an insulating rubber may be used, or another insulating resin may be used. By attaching the insulating cover 20, the thickness of the insulating material interposed between the core material 23 and the fastener 4 is increased, and the contact between the core material 23 and the fastener 4 is more reliably prevented. Can be.
[0036]
Further, since the side plate 20b of the insulating cover 20 comes into surface contact with the end face of the notch 15, the pressure of the contact portion generated when the two come into contact is dispersed. Therefore, it is possible to prevent the fastener 4 from digging into the pavement plate 11 and damaging the rubber of the pavement plate 11.
[0037]
Further, as shown in FIG. 7, when the sleeper 2 moves in the track direction and the paving board 11 is attached without returning the sleeper 2 to the original position, the lower surface of the support portion 19 of the paving board 11 becomes It contacts the fastener 4 upper surface. At this time, since the insulating cover 20 is interposed on the upper surface of the fastener 4, the floating height h with respect to the regular mounting height of the pavement plate 11 shown in the drawing becomes large, and the mounting state of the pavement plate 11 is incomplete. There is an effect that it is easy to visually find something.
[0038]
As described above, the insulating cover 20 is desirably made of an insulating rubber or an insulating resin. In particular, the insulating cover 20 does not require an insulating function and a function of preventing the fastener 4 from biting into the pavement plate 11. Alternatively, when only the effect of improving visibility when the pavement plate 11 comes into contact with the fastener 4 and is in a floating state is required, the material may be a material having no insulating property. For example, a metallic material such as stainless steel may be used.
[0039]
As shown in FIG. 7, a convex tenon 16 is provided on one side surface of each of the side surfaces in the line direction where the pavement plates 11 adjacent in the line direction contact each other, and the other side surface of which is in contact with the other side. The side surface is provided with a concave mortise 17 into which the tenon 16 is fitted. Since the mortise portion 16 is fitted into the mortise hole 17, the pavement plates 11 adjacent to each other in the track direction are securely fitted to each other and stably fixed so as not to move in the vertical direction. Can be prevented. For this reason, the friction between the pavement plate 11 and the fasteners 4 and the sleepers 2 prevents damage to the rubber covering the core members 22 and 23 on the pavement plate surface. The mortise portion 16 and the mortise hole 17 can be provided as necessary in order to prevent the pavement plate from fluttering. The mortise portion 16 and the mortise hole 17 may be provided not only on the inner pavement plate 11 but also on the outer pavement plate 12. The effect of the mortise 16 and the mortise 17 has the effect of strengthening the fixation by increasing the contact area between the two pavement plates as compared with the conventional engagement of the steps 13 and 14 shown in FIG. Since the upper and lower surfaces of the tenon 16 are in contact with the mortise 17, the effect of suppressing the upward movement of the pavement plate is great.
[0040]
In the above configuration, as shown in FIG. 9, a configuration may be adopted in which a sleeper spacing member 29 fitted between adjacent sleepers 2 is attached so that the sleeper 2 does not move in the line direction.
[0041]
As shown in FIG. 10, this spacing member is fitted between adjacent sleepers 2 immediately below the rail R where the pavement plates 11 and 12 are not placed, and the line direction end surface 29 a of the spacing member 29 is provided. However, the contact between the sleeper 2 and the sleeper 2 is prevented from being further reduced. By continuously attaching the spacing member 29 over the mounting range of the railroad crossing pavement plate, the sleeper 2 is prevented from moving in the line direction, and the contact between the support portion 19 of the pavement plate 11 and the fastener 4 is prevented. I try to reduce opportunities. If the upper surface of the spacing member 29 is brought into contact with the lower surface of the base portion 7 of the rail R, the spacing member 29 is more firmly fixed between the sleepers 2, as shown in FIG. Alternatively, some gap may be provided.
[0042]
In addition, since the paving boards 11 and 12 are placed on the sleeper 2 and are appropriately locked, a predetermined space between the adjacent sleepers 2 shown in FIG. The width w2 in the line direction of the pavement boards 11 and 12 is usually the same as the spacing w1. At this time, it is possible to adopt a configuration in which the dimension w2 of the pavement plate is set slightly smaller than the interval w1 of the sleeper 2 within a range of tolerance allowed for the pavement plate. For example, a case is considered in which, while the predetermined sleeper 2 interval w1 is 600 mm, the pavement board width dimension w2 is set to 599 mm. This makes it easy to slightly adjust the position of the pavement boards adjacent to each other in the track direction in the track direction.
[0043]
When this pavement plate is manufactured by press molding, for example, as shown in FIG. 12, core materials 22, 23 and rubber raw materials are arranged at predetermined positions in a mold frame 40, and various vulcanizing materials, reinforcing materials A method of press-molding the mold 40 under a high temperature condition while adding materials and the like is used.
[0044]
At this time, since the pavement board is manufactured by pressing various raw materials in the mold 40 from the upper side to the lower side, the core members 22 and 23 are formed together with the other rubber raw materials by the press. There is a tendency to move towards the lower surface 42 of 40. When the core members 22 and 23 move closer to the lower surface 42, the rubber covering the core members 22 and 23 on the lower surface of the pavement plate may become thinner. It is not preferable that the thickness of the core members 22 and 23 from the surface of the pavement plate is reduced in a portion close to the fastener 4 while being placed on the track.
[0045]
For this purpose, as shown in FIG. 12, a projection 41 for supporting the core members 22 and 23 is provided on the upper surface of the bottom plate 42 of the mold frame 40, and the projection 41 is provided on the lower surface of the core members 22 and 23 arranged in the mold frame 40. And the upper surface of the bottom plate 42 is maintained at a predetermined distance. After the pavement plate is formed and removed from the formwork 40, the hole 18 from which the protrusion 41 has been removed remains on the back surface of the pavement plate. Therefore, it is desirable to appropriately fill this portion with rubber or the like.
[0046]
As a formwork for press-molding a railroad crossing pavement plate, the formwork 40 is not limited to the production of rubber-made pavement plates, but can be used for the production of other resin-made pavement plates.
[0047]
In the above-described embodiment, the core material in the cross-track direction is divided into two in the middle between the pair of rails R, R. However, the division of the core material also employs aspects other than this embodiment. I can do it. For example, the number of divisions of one core member 23 may be increased to three or more. Further, as long as the other core material 22 extends along the side of the divided portion, it is possible to maintain the strength of the pavement board. Therefore, the one core material 23 and the other core material 22 are divided respectively. Thus, the positions of the divided portions of the core member 22 and the core member 23 may be shifted from each other so as not to be aligned at the same position. The number of core materials embedded in one support portion 19 is not limited to two, and may be three or more, or one as long as the strength of the pavement board is maintained. Is also good. When the upper core 21 buried in the line direction is used together, the embedment form of the upper core 21 is arbitrary, but rubber is provided between the upper core 21 and the lower cores 22 and 23. It is desirable to intervene so as not to contact.
[0048]
In this embodiment, a fastener 4 for fixing the rail R is attached to the sleeper 2 having a bolt hole, and the fastener 4 is composed of a leaf spring and a fastening bolt 4a. Is not limited to the track structure of the embodiment, and the type of sleeper used, the type of fastener, the type of rail, and the like can be freely selected by changing the design dimensions of the pavement board. Also, this pavement pavement plate structure can be adopted in a pavement plate made of resin other than rubber.
[0049]
【The invention's effect】
According to the present invention, as described above, the core material does not cause a short circuit between the pair of rails, and the core material is exposed to the surface due to damage during the manufacturing process of the pavement plate or during use of the pavement plate. Can be prevented.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of one embodiment. FIG. 2 is a perspective view showing a mounting state of a pavement plate. FIG. 3 is a plan view showing a laying state of a pavement plate in a rail of the same embodiment. FIG. FIG. 5 is a cutaway front view of the inner pavement plate of FIG. 3, in which (a) is a CC section, (b) is a DD section, and FIG. FIG. 6 (c) is a sectional view taken along line E-E, FIG. 6 (d) is a cross-sectional view taken along line FF. FIG. 6 is a detailed view showing a mounting state of the pavement plate, FIG. b) is a cross section taken along the line DD of FIG. 3 [FIG. 7] A cut-away side view showing an attached state of a pavement plate [FIG. 8] A detailed view of an insulating cover [FIG. 9] A detailed view showing an attached state of a sleeper movement prevention device [FIG. 10 is a perspective view showing the mounting state of the sleeper movement preventing device. FIG. 11 shows the paving plate outside the gauge of FIG. 2, (a) is a plan view, and (b) is a sectional front view showing a GG section of (a). Figure (c) FIG. 12 is a cutaway front view showing an HH cross section of a). FIG. 12 is a perspective view of a molding frame for pavement boards. FIG. 13 is a cross-sectional view of a conventional example. FIG. FIG. 15 is a cut-away side view showing the state of attachment of a conventional pavement board.
2 sleeper 3 ballast 4 rail fastener 4 a fastening bolt 5 rail head 6 rail abdomen 7 rail base 8 bolt 9 pavement plate fixing device 10 railroad crossing 11 rail-to-rail inner pavement plate 12 rail-to-rail outer pavement plate 13, 14 step 15 cutout Reference Signs List 16 mortise section 17 Mortise hole 18 Filling section 19 Supporting section 20 Insulating cover 21 Upper core material 22, 23 Lower core material 24 Pipe holes 25, 26, 27 End 28 Wheel path 29 Spacing material 29a End surface 30 Pavement material 40 Formwork 41 Projection G Road surface R Rail

Claims (5)

線路のレールR,R間内側に載置され、内部に線路横断方向の芯材を埋め込んだ樹脂製の踏切舗装板において、
前記芯材を線路横断方向に離れるように分割し、その分割した芯材の間に絶縁部を設けたことを特徴とする踏切舗装板構造。
A resin level crossing pavement plate which is placed inside the rails R, R of the track and has a core material in the cross direction of the track embedded therein.
A level crossing pavement plate structure, wherein the core material is divided so as to be separated in a cross direction of a track, and an insulating portion is provided between the divided core materials.
前記分割した芯材は、その分割した一の芯材23,23の分割部を跨いで、他の芯材22を沿わせたことを特徴とする請求項1に記載の踏切舗装板構造。The crossing pavement plate structure according to claim 1, wherein the divided core material straddles another core material 22 across the divided portion of one of the divided core materials 23, 23. 内部に芯材を埋め込んだ樹脂製の踏切舗装板を製造するために使用するプレス成形用型枠40において、
前記成形用型枠40は、その底板42上面に前記芯材を支える突起41を設けたものであり、その突起41が、前記型枠40内に配置した芯材下面と前記底板上面とを所定の距離に維持するようにしたことを特徴とする踏切舗装板のプレス成形用型枠。
In the press-forming formwork 40 used to manufacture a resin level crossing pavement board with a core material embedded therein,
The molding frame 40 is provided with a projection 41 for supporting the core material on the upper surface of a bottom plate 42. The projection 41 defines the lower surface of the core material and the upper surface of the bottom plate arranged in the mold frame 40 in a predetermined manner. A press-forming formwork for a railroad crossing pavement plate, characterized by being maintained at a distance of:
線路のマクラギ2上面に取り付けた締結具4により対のレールR,Rをマクラギ2に固定するとともに、その対のレールR,R間内側に、内部に線路横断方向の芯材を埋め込んだ樹脂製の踏切舗装板11を載置する踏切舗装板の取付構造において、
前記締結具4の前記舗装板に面する部分は、絶縁カバー20で覆われていることを特徴とする踏切舗装板取付構造。
A pair of rails R, R are fixed to the sleeper 2 by fasteners 4 attached to the upper surface of the sleeper 2 of the track, and a resin material in which a core material in the cross direction of the track is embedded inside the pair of rails R, R inside. In the mounting structure of the level crossing pavement plate on which the level crossing pavement plate 11 is placed,
A part of the fastener (4) facing the pavement plate is covered with an insulating cover (20).
線路のマクラギ2上面に取り付けた締結具4により対のレールR,Rをマクラギ2に固定するとともに、その対のレールR,R間内側に、内部に線路横断方向の芯材を埋め込んだ樹脂製の踏切舗装板11を載置する踏切舗装板の取付構造において、
前記レールR,R下方において、隣接するマクラギ2間に間隔保持材29を嵌め込むことにより、マクラギ2が線路方向へ移動しないように拘束し、前記舗装板11端面と締結具4との距離を維持するようにしたことを特徴とする踏切舗装板の取付構造。
A pair of rails R, R are fixed to the sleeper 2 by fasteners 4 attached to the upper surface of the sleeper 2 of the track, and a resin material in which a core material in the cross direction of the track is embedded inside the pair of rails R, R inside. In the mounting structure of the railroad crossing pavement plate on which the railroad crossing pavement plate 11 is placed,
By inserting a spacing member 29 between the adjacent sleepers 2 below the rails R, R, the sleeper 2 is restrained from moving in the line direction, and the distance between the end surface of the pavement plate 11 and the fastener 4 is reduced. A mounting structure for a railroad crossing pavement plate, characterized in that it is maintained.
JP2003137333A 2003-05-15 2003-05-15 Level crossing pavement structure Expired - Lifetime JP4011516B2 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006316616A (en) * 2005-05-10 2006-11-24 Gmundner Fertigteile Gmbh & Co Kg Track
JP2010101157A (en) * 2008-10-23 2010-05-06 China Steel Corp Rubber-made pavement plate for railroad crossing and rubber pad for the pavement plate
KR20160017296A (en) * 2014-08-04 2016-02-16 한국철도기술연구원 A railway crossing structure of Submerged Floating Railway

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006316616A (en) * 2005-05-10 2006-11-24 Gmundner Fertigteile Gmbh & Co Kg Track
JP2010101157A (en) * 2008-10-23 2010-05-06 China Steel Corp Rubber-made pavement plate for railroad crossing and rubber pad for the pavement plate
KR20160017296A (en) * 2014-08-04 2016-02-16 한국철도기술연구원 A railway crossing structure of Submerged Floating Railway
KR101665094B1 (en) 2014-08-04 2016-10-13 한국철도기술연구원 A railway crossing structure of Submerged Floating Railway

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