JP5912691B2 - Railroad crossing fence - Google Patents

Railroad crossing fence Download PDF

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JP5912691B2
JP5912691B2 JP2012054268A JP2012054268A JP5912691B2 JP 5912691 B2 JP5912691 B2 JP 5912691B2 JP 2012054268 A JP2012054268 A JP 2012054268A JP 2012054268 A JP2012054268 A JP 2012054268A JP 5912691 B2 JP5912691 B2 JP 5912691B2
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synthetic resin
strip
slit
crossing
blocking rod
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JP2013184690A (en
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永吉　清治
清治 永吉
洋平 澤田
洋平 澤田
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エバック株式会社
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Description

本発明は、踏切遮断機に使用される踏切用遮断桿、特に、基端側を支点として上下方向に回動することにより踏切を開閉する踏切用遮断桿に関する。   The present invention relates to a level crossing barrier used in a level crossing barrier, and more particularly to a level crossing barrier that opens and closes a level crossing by rotating in a vertical direction with a base end as a fulcrum.

従来からこの種の踏切用遮断桿としては種々の構造のものが開発されているが、いずれの遮断桿においても、例えば、特許文献１に記載されているように、踏切に交差する道路幅に応じて数本の遮断桿部材を、互いに対向する端部同士を嵌合させることによって軸方向に継いで所定長さの遮断桿に形成している。   Conventionally, various types of crossing barges have been developed for this kind of level crossing. In any type of crossing bar, for example, as described in Patent Document 1, the width of the road intersecting with a crossing is set. Correspondingly, several barrier rod members are formed into a barrier rod of a predetermined length by connecting end portions facing each other in the axial direction.

また、踏切用遮断桿は遮断機に片持ち状に取付られていて先部側が下方に撓む虞れが生じるので、竹材等の剛性に優れた材料からなる桿部材が広く使用されているが、竹材からなる遮断桿では、該遮断桿によって踏切を閉鎖中に、自動車が強行に踏切を横断してこの遮断桿に衝突した場合、容易に折損、破壊して破壊した桿部分が線路上に横たわると列車の通過の妨げになるといった問題点があり、その上、この踏切用遮断桿の修理や取替えにかかる費用が増大するばかりでなく、自動車も大きく損傷するといった問題点がある。   In addition, since the crossing fence for railroad crossings is attached to the breaker in a cantilevered manner, there is a risk that the front side will bend downward, so that a saddle member made of a material having excellent rigidity such as bamboo is widely used. In the case of a fence made of bamboo, when the railroad crossing is closed by the barrier fence, if the car forcibly crosses the railroad crossing and collides with this barrier fence, the fence part that is easily broken and destroyed is on the track. When lying down, there is a problem that the passage of the train is hindered. In addition, there is a problem that not only the cost for repairing and replacing the railroad crossing bar is increased, but also the car is seriously damaged.

このため、例えば、特許文献２に記載されているように、踏切用遮断桿として、可撓性を有する合成樹脂製の中空管に帯状金属補強材をその幅方向を上下方向に向けて取付てなる構造のものや、特許文献３に記載されているように、踏切用ではなく高速道路の料金所に設置される遮断機の遮断桿（阻止棒）ではあるが、弾性及び可撓性を有する発泡合成樹脂材よりなる中空棒状材内の中央部に一定幅を有する合成樹脂製帯板材からなる芯材をその幅方向を上下方向に向けた状態にして装着してなる構造のものが開発されている。   For this reason, for example, as described in Patent Document 2, a strip-shaped metal reinforcing material is attached to a flexible synthetic resin hollow tube with its width direction directed vertically as a crossing barrier As described in Patent Document 3, and as described in Patent Document 3, it is a breaker bar (blocking bar) for a circuit breaker installed at a toll gate on a highway, not for a railroad crossing, but has elasticity and flexibility. Developed with a structure in which a core made of a synthetic resin strip having a certain width is mounted in the center of a hollow rod-shaped material made of foamed synthetic resin material with the width direction facing up and down Has been.

特開２００２−１５４４３４号公報JP 2002-154434 A 特開平１０−１００９０３号公報Japanese Patent Laid-Open No. 10-100903 特開２００７−１４６３８９号公報JP 2007-146389 A

しかしながら、上記特許文献２や特許文献３に記載されている遮断桿によれば、遮断桿自体は、可撓性を有する材料より形成しているにもかかわらず、その内部に幅方向を上下方向に向けて帯状金属補強材或いは合成樹脂製帯状材からなる芯材を設けているので、この芯材によって遮断桿が上下方向に対する剛直性を付与されて遮断機に片持ち状に支持させているにもかかわらず、その先端が下方に撓むことなく真っ直ぐな形状を維持しえる一方、該遮断桿によって踏切を閉鎖中に、自動車が強行に踏切を横断してこの遮断桿の先部に衝突した場合には、遮断桿が自動車の進行方向に弾性的に屈曲変形しながらその衝撃力を吸収して該遮断桿の折損を防止すると共に自動車の損傷を少なくし得るといった利点を有するが、遮断桿の閉鎖時に自動車が強行に通過しようとして遮断桿の先部が自動車の車体上に衝突した場合には、遮断桿は芯材によって上下方向に対して剛直性を保持しているから、屈曲することなく自動車に大きな衝撃力でもって衝突して自動車を破損させると共に遮断桿自体も折損し、さらには、元部側の桿部材との継手部分に大きな曲げ応力が作用して該継手部分が破損し、修理や取替えができなくなるといった問題点があった。   However, according to the barrier rods described in Patent Document 2 and Patent Document 3, the barrier rod itself is made of a flexible material, but the width direction is set up and down in the interior thereof. Since the core material which consists of a strip | belt-shaped metal reinforcement material or a synthetic resin strip | belt material is provided toward this, the isolation | separation gutter is provided with the rigidity with respect to an up-down direction by this core material, and it is made to support in a cantilever with a circuit breaker. Nevertheless, while the front end can maintain a straight shape without bending downward, the car is forced to cross the crossing and collide with the tip of the barrier while the barrier is closed. In such a case, the barrier rod has the advantage that it can be bent and deformed elastically in the traveling direction of the vehicle while absorbing the impact force to prevent breakage of the barrier rod and reduce damage to the vehicle. When the bag is closed When the front part of the barrier rod collides with the body of the automobile when the vehicle is forced to pass, the barrier rod retains rigidity in the vertical direction by the core material, so it does not bend to the automobile. Collision with a large impact force causes damage to the car and breaks the barrier rod itself.Furthermore, a large bending stress acts on the joint portion with the flange member on the base side, resulting in damage to the joint portion. There was a problem that it could not be replaced.

本発明はこのような問題点に鑑みてなされたもので、その目的とするところは、常態においては先部側が撓むことなく直状形態を保持し、踏切の閉鎖時に先部が自動車等と衝突した場合には、左右方向に或いは上方方向に円弧状に弾性変形して衝撃力を緩和すると共に折損や自動車の損傷をできるだけ防止することができる先部側遮断桿部材を備えた踏切用遮断桿を提供するにある。   The present invention has been made in view of such problems, and the purpose of the present invention is to maintain a straight form without bending the front part in a normal state, and the front part is a car or the like when the railroad crossing is closed. In the event of a collision, it is elastically deformed in an arc shape in the left-right direction or the upward direction to relieve the impact force and at the same time cut off for the level crossing with a front-side blocking bar member that can prevent breakage and vehicle damage as much as possible. To provide firewood.

上記目的を達成するために本発明の踏切用遮断桿は、請求項１に記載したように、数本の遮断桿部材が軸方向に継がれて所定長さの遮断桿とした踏切用遮断桿において、先部の遮断桿部材を、弾性及び可撓性を有する合成樹脂製管を桿本体としてこの桿本体の中空内部に、厚み方向に弾性的に屈曲可能な一定厚みを有する合成樹脂製帯状板からなる補強芯材がその幅方向を上下方向に向けて挿入されてその上端面が桿本体の内周面上周部に支持されている一方、下端面が桿本体の内周面下周部に摺接されていると共に、この補強芯材はその下端面から上端面近傍に達する多数のスリットを全長に亘って長さ方向に小間隔毎に備えると共にスリットを介して対向端面が突き合わせ状に接触している多数の短冊状分割片を備え、各スリットの上端を支点として隣接する短冊状分割片間が上端から下端に向かって拡開されることによって桿本体は上方向に円弧状に屈曲可能であり、隣接する短冊状分割片の対向端面同士が圧接されることによって下方向に屈曲不能であることを特徴とする。 Crossing cutoff stick of the present invention in order to achieve the above object, as described in claim 1, blocking crossing several of the blocking rod member has a shut-off rod of spliced in the axial direction by a predetermined length rod In this case, a synthetic resin strip having a certain thickness that can be elastically bent in the thickness direction is formed inside the hollow body of the main body using a synthetic resin tube having elasticity and flexibility as a main body, A reinforcing core made of a plate is inserted with its width direction facing up and down, and its upper end surface is supported by the upper peripheral portion of the inner peripheral surface of the heel body, while the lower end surface is the lower periphery of the inner peripheral surface of the heel body together are in sliding contact with the part, the reinforcing core material shaped butt is facing end surface through a slit provided with a plurality of slits to reach the upper surface near from the lower end surface for each small interval in the longitudinal direction over the entire length It comprises a number of rectangular divided piece that is in contact with the upper end of each slit桿本body by strips separated piece adjacent the fulcrum is widened toward the bottom from the top is bendable upward in an arc, between the opposite end faces of the adjacent strip-shaped split pieces are pressed It characterized in that it is impossible bent downward by.

このように構成した踏切用遮断桿において、請求項２に係る発明は、上記桿本体は、軟質合成樹脂製の内管と、この軟質合成樹脂製の内管の外周面に一定のピッチでもって螺旋状に巻着された硬質合成樹脂製の補強線と、この補強線上に一体に固着され上記軟質合成樹脂製の内管と同一長さの軟質合成樹脂製の外管とを備え、これらの軟質合成樹脂製内外管の対向面間において隣接する補強線部の間に空間部が設けられていることを特徴とする。 In the railroad crossing fence constructed as described above, the invention according to claim 2 is characterized in that the fence main body has an inner tube made of a soft synthetic resin and an outer peripheral surface of the inner tube made of the soft synthetic resin at a constant pitch. a hard synthetic resin reinforcing wire that is wrapped helically, and an outer tube made of soft synthetic resin of the inner tube of the same length are secured together made the soft synthetic resin on the reinforcing lines, these and a space portion between the reinforcing wire portion adjacent Oite between the facing surfaces of the soft synthetic resin-made inner and outer tubes are provided.

また、請求項３に係る発明は、上記補強芯材は発泡樹脂製帯状板よりなり、各短冊状分割片における合成樹脂製帯状板の長さ方向の幅を該スリットの長さよりも短くしていると共にスリットの上端に合成樹脂製帯状板の厚み方向に貫通した小径円形孔を備え、この小径円形孔は屈曲支点となることを特徴とする。 According to a third aspect of the present invention, the reinforcing core member is made of a foamed resin strip, and the width in the length direction of the synthetic resin strip in each strip-shaped segment is shorter than the length of the slit. comprises a small diameter circular hole penetrating in the thickness direction of the upper synthetic resin strip-shaped plate of the slit together are, the smaller diameter circular hole is characterized by a bending fulcrum.

請求項１に係る発明によれば、数本の遮断桿部材が軸方向に継がれて所定長さの遮断桿とした踏切用遮断桿において、先部の遮断桿部材を、弾性及び可撓性を有する合成樹脂製管を桿本体としてこの桿本体の中空内部に、厚み方向に弾性的に屈曲可能な一定厚みを有する合成樹脂製帯状板からなる補強芯材がその幅方向を上下方向に向けて挿入されてその上端面が桿本体の内周面上周部に支持されている一方、下端面が桿本体の内周面下周部に摺接されていると共に、この補強芯材はその下端面から上端面近傍に達する多数のスリットを全長に亘って長さ方向に小間隔毎に備えると共にスリットを介して対向端面が突き合わせ状に接触している多数の短冊状分割片を備えているので、常態においては補強芯材がスリットを介して分割されている全ての短冊状分割片の対向端面同士を互いに圧接させてこの先部側遮断桿部材が自重により元部側の桿部材との継ぎ部分を支点として下方に撓むのを強固に阻止しながら直状に保持しておくことができる。 According to the invention of claim 1, in crossing a blocking rod that several of the blocking rod member is spliced in the axial direction and blocking rod having a predetermined length, the blocking rod portion material of the previous section, the elastic and flexible the hollow interior of the桿本body synthetic resin pipe as桿本having a reinforcing core material made of a synthetic resin strip-shaped plate having a resiliently bendable constant thickness in the thickness direction toward the width direction in the vertical direction while the upper end face is inserted is supported by the inner peripheral surface on the peripheral portion of the桿本body Te, the lower end surface is in sliding contact with the inner peripheral surface lower peripheral portion of the桿本body, the reinforcing core material thereof and a plurality of strip-shaped divided pieces facing end surface is in contact with the shaped butt through a slit with a number of slits to reach the vicinity of the upper end face from the lower end surface provided for each small interval in the longitudinal direction over the entire length So, normally, the reinforcing core is divided through the slits. The opposing end surfaces of all the strip-shaped divided pieces are pressed against each other, and the front side blocking rod member is straightened while firmly preventing downward bending with its own weight as a fulcrum with the joint portion with the original portion side flange member. Can be retained.

また、踏切を閉鎖中に自動車が強行に踏切を横断して遮断桿の上記先部の遮断桿部材に衝突した場合には、弾性及び可撓性を有する合成樹脂製管からなるこの遮断桿部材が、その内部に配設している上記合成樹脂製帯状板からなる補強芯材をその厚み方向に撓ませながら自動車の進行方向に大きく円弧状に弾性屈曲して衝撃力を遮断桿部材の一カ所に集中させることなく全長に亘って均一に分散させて緩和することができ、従って、遮断桿部材の折損やこの遮断桿部材の継手部分の破損を防止することができると共に自動車が大きく損傷するのも防止することができる。   In addition, when the automobile crosses the railroad crossing forcibly and collides with the above-mentioned barrier rod member of the barrier rod while closing the railroad crossing, this barrier rod member made of a synthetic resin pipe having elasticity and flexibility However, the reinforcing core material made of the above-mentioned synthetic resin belt-like plate disposed inside is bent in the thickness direction while elastically bending in a large arc shape in the direction of travel of the automobile, so that the impact force is reduced. It can be uniformly distributed over the entire length without being concentrated at the place and can be mitigated. Therefore, breakage of the barrier rod member and breakage of the joint portion of the barrier rod member can be prevented and the automobile is greatly damaged. Can also be prevented.

さらに、遮断桿の閉鎖時に自動車が強行に通過しようとして上記先部側の遮断桿部材が自動車の車体上に衝突した場合には、弾性及び可撓性を有する合成樹脂製管からなるこの遮断桿部材の内部に配設している上記補強芯材がスリットを介して分割されている短冊状分割片の対向端面間をスリットの上端を支点として拡げながら遮断桿部材を上方に円弧状に弾性屈曲させて衝撃力を吸収することができ、上記同様に遮断桿部材の折損やこの遮断桿部材の継手部分の破損を防止することができると共に自動車も大きく損傷するのを抑止することができ、その上、自動車の排除後には、補強芯材は遮断桿部材の弾性復元力によって一体的に元の真っ直ぐな形態に直ちに復帰して踏切の開閉に使用することができる。   Furthermore, when the front-side blocking rod member collides with the body of the vehicle when the vehicle is forced to pass when the blocking rod is closed, this blocking rod is made of a synthetic resin pipe having elasticity and flexibility. The reinforcing core material arranged inside the member is elastically bent upward in a circular arc shape while the upper end of the slit is extended as a fulcrum between the opposing end faces of the strip-shaped divided piece divided through the slit. It is possible to absorb the impact force and to prevent breakage of the blocking rod member and breakage of the joint portion of the blocking rod member as well as the above, and it is possible to prevent the automobile from being greatly damaged, In addition, after the automobile is removed, the reinforcing core member can be immediately restored to the original straight shape by the elastic restoring force of the blocking rod member, and can be used to open and close the crossing.

また、上記構造を有する遮断桿部材は、既設の踏切用遮断桿において、その先部側の遮断桿部材が踏切閉鎖時に自動車等の進入によって折損した場合に、この遮断桿部材と交換して元部側の遮断桿部材に継ぎ足して使用するための遮断桿部材として最適であり、この遮断桿部材を先部の遮断桿部材として使用すれば、上述したように、踏切用遮断桿としての優れた機能を発揮することができる。   In addition, the barrier rod member having the above structure is replaced with the original barrier rod member when the leading barrier rod member breaks down due to the entry of an automobile or the like when the railroad crossing is closed. It is optimal as a barrier rod member to be used by adding to the barrier rod member on the side, and if this barrier rod member is used as a barrier rod member at the front, as described above, it is excellent as a barrier rod for a crossing. Function can be demonstrated.

請求項２に係る発明によれば、上記遮断桿部材の桿本体は、軟質合成樹脂製の内管と、この軟質合成樹脂製の内管の外周面に一定のピッチでもって螺旋状に巻着された硬質合成樹脂製の補強線と、この補強線上に一体に固着され上記軟質合成樹脂製の内管と同一長さの軟質合成樹脂製外管とを備え、これらの軟質合成樹脂製内外管の対向面間において隣接する補強線部の間に空間部が設けられているので、軟質合成樹脂製内外管の間に介在させている硬質合成樹脂製の補強線によって強固な耐圧縮性を付与されあり、従って、断面円形状で常態においては真っ直ぐな形態を保持し得る遮断桿部材を形成することができると共に、軟質合成樹脂製の内管の内周面を全長に亘って滑らかな面に形成しているので、この内管内に上記一定厚みを有する合成樹脂製帯状板からなる補強芯材を容易に且つ正確に挿入することができ、遮断桿部材を能率よく作製することができる。 According to the invention of claim 2, the bag main body of the blocking rod member is spirally wound around the inner tube made of soft synthetic resin and the outer peripheral surface of the inner tube made of soft synthetic resin at a constant pitch. a hard synthetic resin reinforcing wire that is, a soft synthetic resin-made outer tube of the inner tube of the same length are secured together made the soft synthetic resin on the reinforcing lines, the inner and outer tubes made of these soft synthetic resin since the space portion between the reinforcing wire portions adjacent between the opposing surfaces of the are provided, giving a strong resistance to compression of a hard synthetic resin reinforcing wire which is interposed between the soft synthetic resin-made inner and outer tubes Therefore, it is possible to form a blocking rod member having a circular cross section and maintaining a straight shape in a normal state, and to make the inner peripheral surface of the soft synthetic resin inner tube smooth over the entire length. Because it is formed, this inner pipe has the above-mentioned constant thickness Synthetic resin-made belt made of plate reinforcing core member can be easily and accurately inserted, can be manufactured blocking rod portion material efficiently.

請求項３に係る発明によれば、上記補強芯材は発泡樹脂製帯状板よりなり、各短冊状分割片における合成樹脂製帯状板の長さ方向の幅を該スリットの長さよりも短くしているので、この補強芯材を上記遮断桿部材に内装してなる遮断桿部材が上述したように自動車等の車体上に衝突した際には、合成樹脂製帯状板の多数の短冊状分割片がスリットを介して円形に近い多角形状に屈折しながら遮断桿部材を小さい半径でもって無理なく円滑に円弧状に弾性屈曲させることができ、従って、遮断桿部材を弾性的に大きく撓ますことができて衝撃力の一層の緩和を図ることができる。また、スリットの上端に合成樹脂製帯状板の厚み方向に貫通した小径円形孔を設けているので、遮断桿部材と共にこの合成樹脂製帯状板を形成している多数の短冊状分割片がスリットの上端を支点とし互いに屈折しても、スリットが延長方向に亀裂するのを防止することができると共に円滑な屈曲を可能にすることができる。   According to the invention of claim 3, the reinforcing core member is made of a foamed resin strip, and the width in the length direction of the synthetic resin strip in each strip-shaped segment is shorter than the length of the slit. Therefore, when the shielding rod member in which the reinforcing core member is built into the shielding rod member collides with the vehicle body such as an automobile as described above, a large number of strip-like divided pieces of the synthetic resin belt-like plate are formed. The blocking rod member can be elastically bent into an arc shape smoothly with a small radius while being refracted into a polygonal shape close to a circle through the slit, and thus the blocking rod member can be flexibly elastically bent. The impact force can be further reduced. In addition, since a small-diameter circular hole penetrating in the thickness direction of the synthetic resin belt-like plate is provided at the upper end of the slit, a large number of strip-like divided pieces forming the synthetic resin belt-like plate together with the blocking rod member are formed on the slit. Even if the upper end is used as a fulcrum, the slits can be prevented from cracking in the extending direction and can be bent smoothly.

本発明踏切用遮断桿を取付けた遮断機の斜視図。The perspective view of the circuit breaker which attached the breaking rail for level crossings of this invention. その先部遮断桿部材の一部の斜視図。FIG. その一部を断面した側面図。The side view which cut the part. 桿本体内に補強芯材を挿入する前の分解斜視図。The disassembled perspective view before inserting a reinforcement core material in the coffin main body. 先部遮断桿部材を直状に保持している補強芯材の斜視図。The perspective view of the reinforcement core material which has hold | maintained the front-end | tip block | interruption gutter member in the straight shape. 自動車の前面が先部遮断桿部材に衝突した状態の平面図。The top view of the state which the front surface of the motor vehicle collided with the front-end | tip block | interruption gutter member. その時の補強芯材の屈曲状態を示す斜視図。The perspective view which shows the bending state of the reinforcement core material at that time. 自動車の上面に先部遮断桿部材が衝突した状態の正面図。The front view of the state which the front-end | tip block | interruption gutter member collided with the upper surface of the motor vehicle. その時の補強芯材の屈曲状態を示す斜視図。The perspective view which shows the bending state of the reinforcement core material at that time.

本発明の具体的な実施の形態を図面について説明すると、図１に示すように、先部遮断桿部材１と、中間部遮断桿部材10、10と、元部遮断桿部材20とを順次軸方向に継ぐことによって形成した所定長さの踏切用遮断桿Ａにおいて、上記先部遮断桿部材１は、図２〜図４に示すように、弾性及び可撓性を有する一定長さの合成樹脂製管を桿本体1Aとして、この桿本体1Aの中空内部である円形の貫通孔に、その厚み方向に弾性的に屈曲可能な一定厚みと一定幅を有する合成樹脂製帯状板からなる補強芯材1Bを、その幅方向を上下方向に向けた状態にして円形貫通孔を左右に二分するように挿入し、その上端面を桿本体1Aの内周面上周部に支持させている一方、下端面を桿本体1Aの内周面下周部に接着することなく摺接させている。なお、桿本体1Aの内周面上周部に対する補強芯材1Bの上端面の支持は、接着剤によって固定した支持構造であってもよく、或いは、接着することなく、例えば、桿本体1Aの内周面上周部に全長に亘って凹溝を設けてこの凹溝内に補強芯材1Bの上端部を嵌合させることによって支持させたり、本本体1Aの内周面上端部に補強芯材1Bの上端部を食い込ませるようにして圧接させた支持構造であってもよい。   A specific embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, a front-end blocking rod member 1, intermediate blocking rod members 10, 10, and an original blocking rod member 20 are sequentially pivoted. As shown in FIGS. 2 to 4, in the crossing bar for crossing A having a predetermined length formed by joining in the direction, the front end barb member 1 is a synthetic resin having a certain length having elasticity and flexibility. Reinforcement core material made of synthetic resin strip-shaped plate having a certain thickness and a certain width that can be bent elastically in the thickness direction in a circular through hole that is a hollow inside of the collar body 1A, with the tube making as the collar body 1A 1B is inserted so that the circular through-hole is divided into left and right with the width direction facing up and down, and its upper end is supported by the upper peripheral portion of the inner peripheral surface of the main body 1A, while The end surface is brought into sliding contact with the lower peripheral portion of the inner peripheral surface of the bag main body 1A without being bonded. The support of the upper end surface of the reinforcing core member 1B with respect to the upper peripheral portion of the inner peripheral surface of the heel body 1A may be a support structure fixed by an adhesive, or without bonding, for example, A groove is provided over the entire length of the inner circumferential surface and the upper end of the reinforcing core material 1B is fitted into the groove, or the reinforcing core is supported on the upper end of the inner circumferential surface of the main body 1A. A support structure in which the upper end portion of the material 1B is pressed into the material 1B may be used.

さらに、この合成樹脂製帯状板からなる補強芯材1Bには、桿本体1Aの内周面下周部に接している下端面から上端面近傍部に達する深さの多数のスリット1b1 ・1b1 ・1b1 ・・・を全長に亘って長さ方向に小間隔毎に設けていて各隣接するスリット1b1 、1b1 間の帯状板部分を補強芯材1Bの幅方向に長い短冊状分割片1b2 に形成してあり、スリット1b1 の上端部を支点として隣接する短冊状分割片1b2 、1b2 の対向端面間を上端から下端にゆくに従って徐々に逆Ｖ字状に拡開することによって、補強芯材1Bをその一端側から他端側に向かって上方に円弧状に屈曲可能（図９参照）に形成していると共に、常態においては隣接する短冊状分割片1b2 、1b2 がその対向端面同士を突き合わせ状態に接触させていて、補強芯材1Bが下方に撓みのを阻止し、直状に保持するように形成している。   Furthermore, the reinforcing core material 1B made of this synthetic resin strip-shaped plate has a large number of slits 1b1, 1b1, and a depth that reaches the vicinity of the upper end surface from the lower end surface in contact with the lower peripheral portion of the inner peripheral surface of the collar body 1A. 1b1... Is provided at small intervals in the length direction over the entire length, and a strip-like plate portion between adjacent slits 1b1 and 1b1 is formed in a strip-shaped divided piece 1b2 that is long in the width direction of the reinforcing core 1B. With the upper end of the slit 1b1 as a fulcrum, the adjacent strip-shaped segment 1b2 and 1b2 are gradually expanded in an inverted V shape from the upper end to the lower end between the opposing end faces, so that the reinforcing core 1B is It is formed so as to be able to be bent in an arc shape upward from one end side to the other end side (see FIG. 9), and in the normal state, the adjacent strip-shaped divided pieces 1b2 and 1b2 are in contact with the opposing end surfaces in abutting state. The reinforcing core material 1B prevents the downward bending and holds it straight. It is sea urchin formation.

補強芯材1Bの構成材料である合成樹脂材としてはウレタン樹脂等の硬質発泡樹脂を採用しているが、その他の硬質の合成樹脂材であってもよく、要するに、帯状に形成してその幅方向を上下方向に向けた場合に、水平方向（左右方向）の曲げ剛性は低くてその方向に弾性屈曲が可能であるが、上下方向には断面係数、断面二次モーメントを高くして屈曲不能に構成することができ、且つ、上記のように下端面から上端面近傍部にまでスリット1b1 を設けた場合に、そのスリット1b1 の上端を支点として上方に屈曲可能に構成できればよい。   As the synthetic resin material constituting the reinforcing core material 1B, a hard foamed resin such as urethane resin is adopted, but other hard synthetic resin materials may be used. When the direction is up and down, the bending rigidity in the horizontal direction (left and right direction) is low and elastic bending is possible in that direction. In addition, when the slit 1b1 is provided from the lower end surface to the vicinity of the upper end surface as described above, it is only necessary that the upper end of the slit 1b1 can be bent upward.

また、補強芯材1Bをスリット1b1 を介して長さ方向に多数の短冊状分割片1b2 に形成する場合、各短冊状分割片1b2 における補強芯材1Bの長さ方向の幅、即ち、スリット1b1 に直交する方向の幅をスリット1b1 の長さよりも短い寸法に形成していると共に全てのスリット1b1 の上端に補強芯材1Bの厚み方向に貫通した小径の円形孔1b3 を設けてこの円形孔1b3 を屈曲支点に形成してあり、さらに、この円形孔1b3 と補強芯材1Bの上端面との間の幅を隣接する円形孔1b3 、1b3 間の幅と同等、或いは、小幅にして隣接する短冊状分割片1b2 、1b2 間の拡開による補強芯材1Bの上下方向に屈曲が容易に行えるように形成している。なお、補強芯材1Bの厚みは特に限定されないが、３〜７mm程度の厚みにしてその板面に直行する方向（左右方向）に弾性屈曲が可能な適度の剛性を有し、且つ、スリット1b1
を介して隣接する短冊状分割片1b2 、1b2 の対向端面同士が食い違うことなく安定した状態で圧接し得るように構成しておけばよい。また、補強新材1Bは一枚に限らず, 数枚、横方向に重ね合わせて厚みを増大させた状態にして桿本体1A内に配設してもよい。 Further, when the reinforcing core material 1B is formed into a number of strip-shaped divided pieces 1b2 in the length direction through the slits 1b1, the width in the length direction of the reinforcing core material 1B in each strip-shaped divided piece 1b2, that is, the slit 1b1 The circular hole 1b3 has a width smaller than the length of the slit 1b1 and a small-diameter circular hole 1b3 penetrating in the thickness direction of the reinforcing core 1B at the upper end of all the slits 1b1. And a strip that is adjacent to the circular hole 1b3 and the upper end surface of the reinforcing core 1B with a width equal to or smaller than the width between the adjacent circular holes 1b3 and 1b3. The reinforcing core material 1B is formed so as to be easily bent in the up-down direction by the expansion between the split pieces 1b2 and 1b2. The thickness of the reinforcing core 1B is not particularly limited, but it has a thickness of about 3 to 7 mm, has an appropriate rigidity that allows elastic bending in the direction perpendicular to the plate surface (left-right direction), and the slit 1b1
The opposing end faces of the strip-shaped divided pieces 1b2 and 1b2 that are adjacent to each other through the gap may be configured to be in a stable state without being inconsistent with each other. Further, the new reinforcing material 1B is not limited to a single sheet, and several sheets may be disposed in the bag main body 1A in a state where the thickness is increased by overlapping in the lateral direction.

一方、先部遮断桿部材１における上記合成樹脂製管からなる桿本体1Aは、図３に示すように、内周面が全長に亘って同一径の滑らかな面に形成している軟質合成樹脂製の内管1a1 と、この内管1a1 の外周面に一定のピッチでもって全長に亘り螺旋状に巻着してなる硬質合成樹脂製の補強線1a2 と、この補強線1a2 上にその対向する内周面部分を一体に固着している軟質合成樹脂製の外管1a3 とからなり、軟質合成樹脂製の内外管1a1 、1a3 は同一長さを有していると共にこれらの内外管1a1 、1a3 の対向面間には、上記補強芯材1Bによって分断された空間部２が設けられている。なお、桿本体1Aとしては、このような構造に限定されることなく、例えば、軟質合成樹脂製の管体の内周面に補強線を螺旋状に巻装した蛇腹ホースであってもよい。   On the other hand, as shown in FIG. 3, the heel body 1 </ b> A made of the above-mentioned synthetic resin pipe in the front end blocking heel member 1 is a soft synthetic resin whose inner peripheral surface is formed on a smooth surface of the same diameter over the entire length. An inner pipe 1a1 made of steel, a hard synthetic resin reinforcing wire 1a2 spirally wound on the outer peripheral surface of the inner pipe 1a1 at a constant pitch over the entire length, and the reinforcing wire 1a2 facing each other The inner and outer pipes 1a1 and 1a3 made of a soft synthetic resin have the same length and the inner and outer pipes 1a1 and 1a3. A space 2 divided by the reinforcing core material 1B is provided between the opposing surfaces. The saddle body 1A is not limited to such a structure, and may be, for example, a bellows hose in which a reinforcing wire is spirally wound around the inner peripheral surface of a tube made of soft synthetic resin.

このように構成した先部遮断桿部材１の長さは、通常、1.6m程度に形成されていて、その基端部を図１に示すように元部遮断桿部材20の先端側に１〜数本（図においては２本）の中間部遮断桿部材10、10を介して継ぐことによって踏切遮断桿Ａを形成しているが、通路幅が狭い踏切の場合には上記中間部遮断桿部材10を使用することなく、元部遮断桿部材20の先端に直接、継いでもよい。また、隣接する遮断桿部材同士の継ぎ手段としては、元部側の遮断桿部材の先端部内に先部側の遮断桿部材の基端部を挿嵌させ、公知のように接着剤や粘着テープ、或いは、ピンや適宜な繋ぎ金具によって一体に連結している。   The length of the front end blocking rod member 1 configured as described above is normally formed to be about 1.6 m, and the base end portion is 1 to the distal end side of the original portion blocking rod member 20 as shown in FIG. A level crossing blocking rod A is formed by connecting through several (two in the figure) intermediate blocking rod members 10, 10. Without using 10, it may be directly joined to the front end of the base blocking rod member 20. In addition, as a joining means between the adjacent shield rod members, the proximal end portion of the shield rod member on the front side is inserted into the distal end portion of the shield rod member on the base portion side, and an adhesive or adhesive tape is known as known in the art Alternatively, they are integrally connected by a pin or an appropriate connecting metal fitting.

なお、中間部遮断桿部材10や元部遮断桿部材20も上記先部遮断桿部材１と同一構造のものを使用してもよいが、竹材や繊維強化硬質合成樹脂管からなるものであってもよく、本発明においては、特に、上記先部遮断桿部材１を既設の踏切遮断桿において、折損した先部遮断桿部材との取替え用として使用するのに適している。   The intermediate blocking rod member 10 and the original blocking rod member 20 may be of the same structure as the leading blocking rod member 1, but are made of bamboo or a fiber reinforced rigid synthetic resin tube. In particular, in the present invention, the front end blocking bar member 1 is suitable for use as a replacement for a broken front end blocking bar member in an existing level crossing bar bar.

このように構成したので、常態においては、遮断桿Ａが踏切を開閉する際に、先部遮断桿部材１の桿本体1Aは弾性及び可撓性を有する合成樹脂製管からなるにもかかわらず、その内部に幅方向を上下方向に向けた状態で挿入している合成樹脂製帯状板からなる補強芯材1Bによって上下方向に屈曲することなく真っ直ぐな形態を維持して円滑な開閉を可能にすることができる。この場合、補強芯材1Bにはその下端面から上端面近傍に達する多数のスリット1b1 を全長に亘って長さ方向に小間隔毎に設けているが、遮断桿Ａが図１に示すように水平状となるまで閉鎖した際には、補強芯材1Bはスリット1b1 を介して分割されている全ての短冊状分割片1b2 、1b2 の対向端面同士を図５に示すように、互いに圧接させてこの先部側遮断桿部材が自重により元部側の桿部材との継ぎ部分を支点として下方に撓むのを強固に阻止しながら直状に保持しておくことができる。   Since it comprised in this way, when the interruption | blocking fence A opens and closes a railroad crossing in normal condition, although the fence main body 1A of the front-end | tip part cutoff fence member 1 consists of a synthetic resin pipe | tube which has elasticity and flexibility The reinforcing core material 1B made of a synthetic resin band-like plate inserted with the width direction facing up and down inside it maintains a straight shape without bending up and down, allowing smooth opening and closing can do. In this case, the reinforcing core 1B is provided with a large number of slits 1b1 extending from the lower end surface to the vicinity of the upper end surface in the longitudinal direction at small intervals, but the blocking rod A is as shown in FIG. When closed to a horizontal state, the reinforcing core 1B is brought into pressure contact with each other as shown in FIG. 5, with the opposing end faces of all the strip-shaped divided pieces 1b2 and 1b2 divided through the slits 1b1. The front-side blocking rod member can be held in a straight line while firmly preventing the tip-side blocking rod member from bending downward by using the joint portion with the flange member on the base portion side as a fulcrum.

次に、遮断桿Ａが水平状となるまで回動して踏切を閉鎖した際に自動車が強行に踏切を横断しようとしてこの遮断桿Ａの先部遮断桿部材１に衝突すると、弾性及び可撓性を有する桿本体1Aはその内部に配設している上記合成樹脂製帯状板からなる補強芯材1Bと共に図６、図７示すように、自動車の進行方向に円弧状に弾性屈曲しながら衝撃力を吸収する。この際、補強芯材1Bはその厚み方向を自動車の進行方向に向けているので、容易に大きく屈曲させることができ、桿本体1Aの弾性力と共にこの先部遮断桿部材１の折損や継手部分の破損を防止することができる。   Next, when the vehicle is forced to cross the railroad crossing when the crossing rail is closed by rotating until the crossing rail A is horizontal, if the vehicle strikes the front crossing rail member 1 of this barrier rod A, it is elastic and flexible. 6A, together with the reinforcing core material 1B made of the synthetic resin belt-like plate disposed in the interior of the bag main body 1A, the elastic bag body 1A has an impact while being elastically bent in an arc shape in the traveling direction of the automobile as shown in FIGS. Absorb power. At this time, since the thickness direction of the reinforcing core member 1B is directed to the traveling direction of the automobile, it can be easily bent greatly, along with the elastic force of the heel body 1A, Breakage can be prevented.

また、遮断桿Ａの閉鎖時における降下中に自動車が強行に通過しようとしてこの遮断桿Ａの先部遮断桿部材１が図８に示すように、自動車の車体上に衝突した場合には、桿本体1A内に配設している上記補強芯材1Bは、スリット1b1 を介して分割されている各隣接する短冊状分割片1b2 、1b2 の対向端面間をスリット1b1 の上端を支点として図９に示すように、下方に向かうに従って徐々に拡開しながら弾性及び可撓性を有する桿本体1Aと共に上方に円弧状に屈曲して衝撃力を吸収し、この先部遮断桿部材１の折損や継手部分の破損を防止することができると共に自動車も大きく損傷するのを抑止することができ、また、自動車の排除後には、補強芯材1Bは桿本体1Aの弾性復元力によって一体的に元の真っ直ぐな形態に直ちに復帰することができる。   In addition, when the vehicle is forced to pass while the barrier rod A is descending and the front barrier rod member 1 of the barrier rod A collides with the vehicle body as shown in FIG. The reinforcing core material 1B arranged in the main body 1A is shown in FIG. 9 with the upper end of the slit 1b1 as a fulcrum between the opposing end faces of the adjacent strip-like divided pieces 1b2 and 1b2 divided through the slit 1b1. As shown in the figure, while gradually expanding as it goes downward, it is bent upward in an arc shape together with the elastic and flexible heel body 1A to absorb the impact force. In addition to preventing damage to the automobile, it is possible to prevent the automobile from being greatly damaged, and after the automobile is removed, the reinforcing core 1B is integrated into the original straight shape by the elastic restoring force of the collar body 1A. Can return to form immediately.

Ａ 遮断桿
１ 先部遮断桿部材１
1A 桿本体
1a1 軟質合成樹脂製内管
1a2 補強線
1a3 軟質合成樹脂製外管
1B 補強芯材
1b1 スリット
1b2 短冊状分割片
1b3 円形孔
２ 空間部
10 中間部遮断桿部材
20 元部遮断桿部材 A Blocking rod 1 Tip blocking rod member 1
1A 桿 body
1a1 Inner tube made of soft synthetic resin
1a2 Reinforcing wire
1a3 Soft synthetic resin outer tube
1B Reinforcement core
1b1 slit
1b2 Strip-shaped piece
1b3 Circular hole 2 Space
10 Intermediate block member
20 Moisture shield member

Claims (3)

数本の遮断桿部材が軸方向に継がれて所定長さの遮断桿とした踏切用遮断桿において、先部の遮断桿部材を、弾性及び可撓性を有する合成樹脂製管を桿本体としてこの桿本体の中空内部に、厚み方向に弾性的に屈曲可能な一定厚みを有する合成樹脂製帯状板からなる補強芯材がその幅方向を上下方向に向けて挿入されてその上端面が桿本体の内周面上周部に支持されている一方、下端面が桿本体の内周面下周部に摺接されていると共に、この補強芯材はその下端面から上端面近傍に達する多数のスリットを全長に亘って長さ方向に小間隔毎に備えると共にスリットを介して対向端面が突き合わせ状に接触している多数の短冊状分割片を備え、各スリットの上端を支点として隣接する短冊状分割片間が上端から下端に向かって拡開されることによって桿本体は上方向に円弧状に屈曲可能であり、隣接する短冊状分割片の対向端面同士が圧接されることによって下方向に屈曲不能であることを特徴とする踏切用遮断桿。 In crossing for blocking rod that several of the blocking rod member is spliced in the axial direction and blocking rod having a predetermined length, the blocking rod portion material of the previous section, a synthetic resin pipe having elasticity and flexibility as桿本body A reinforcing core made of a synthetic resin belt-like plate having a certain thickness that can be elastically bent in the thickness direction is inserted into the hollow interior of the heel body with its width direction directed vertically, and its upper end surface is the heel body. inner one, which is supported on the peripheral portion peripheral surface, the lower end face with being in sliding contact with the inner peripheral surface lower peripheral portion of the桿本body, a number of the reinforcing core material to reach the upper surface near from the lower end surface of the with a number of strip-shaped divided pieces facing end surface is in contact with the shaped butt through a slit provided with a slit for each small interval in the longitudinal direction over the entire length, adjacent the upper end of each slit as a fulcrum strips especially separated piece is widened toward the bottom from the top What桿本body is bendable upward in a circular arc shape, cut-off level crossing, characterized in that it is impossible bent downward by opposite end faces of the adjacent strip-shaped split pieces are pressed against rod. 桿本体は、軟質合成樹脂製の内管と、この軟質合成樹脂製の内管の外周面に一定のピッチでもって螺旋状に巻着された硬質合成樹脂製の補強線と、この補強線上に一体に固着され上記軟質合成樹脂製の内管と同一長さの軟質合成樹脂製の外管とを備え、これらの軟質合成樹脂製内外管の対向面間において隣接する補強線部の間に空間部が設けられていることを特徴とする請求項１に記載の踏切用遮断桿。 The main body has an inner tube made of soft synthetic resin, a hard synthetic resin reinforcing wire spirally wound around the outer peripheral surface of the inner tube made of soft synthetic resin at a constant pitch, and on the reinforcing wire between the reinforcing line portion adjacent Oite between the facing surfaces of a integrally secured to the outer tube made of soft synthetic resin of the inner tube and the same length of steel the soft synthetic resin, these soft synthetic resin-made inner and outer tubes crossing cutoff stick according to claim 1, characterized in that the space portion is provided. 補強芯材は発泡樹脂製帯状板よりなり、各短冊状分割片における合成樹脂製帯状板の長さ方向の幅を該スリットの長さよりも短くしていると共にスリットの上端に合成樹脂製帯状板の厚み方向に貫通した小径円形孔を備え、この小径円形孔は屈曲支点となることを特徴とする請求項１に記載の踏切用遮断桿。 The reinforcing core material is made of a foamed resin strip, and the width of the length direction of the synthetic resin strip in each strip-shaped segment is shorter than the length of the slit, and the synthetic resin strip at the upper end of the slit. comprises a small diameter circular hole penetrating in the thickness direction of crossing for blocking stick according to claim 1 the small diameter circular hole, characterized in that as a bending fulcrum.
JP2012054268A 2012-03-12 2012-03-12 Railroad crossing fence Active JP5912691B2 (en)

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JP2014012422A (en) * 2012-07-03 2014-01-23 West Japan Railway Co Gate arm and railroad crossing gate having gate arm
CN111325886B (en) * 2020-03-06 2021-10-08 山东士森集成科技有限公司 Intelligent security vehicle access control device capable of preventing vehicle following and passing barriers
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JP3447904B2 (en) * 1996-12-18 2003-09-16 日本ポリケム株式会社 Pole for blocking rod
US6966146B2 (en) * 2002-12-18 2005-11-22 Western-Cullen-Hayes, Inc. Two directional crossing gate arm protection assembly
JP2006194430A (en) * 2004-12-17 2006-07-27 Kanaflex Corporation Pressure hose
JP4177374B2 (en) * 2005-11-24 2008-11-05 株式会社Ｔｎｓ Blocker blocking bar
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