JPH0522603U

JPH0522603U - Crossing board

Info

Publication number: JPH0522603U
Application number: JP6945791U
Authority: JP
Inventors: 育弘前; 健司佐々木
Original assignee: Sekisui Kasei Co Ltd
Current assignee: Sekisui Kasei Co Ltd
Priority date: 1991-08-30
Filing date: 1991-08-30
Publication date: 1993-03-23
Anticipated expiration: 2006-08-14
Also published as: JP2507056Y2

Abstract

(57)【要約】【構成】工事用車両を載置しうる強度を備える発泡樹
脂成形体１ａ・２ａを鉄道の軌道の高さに応じた略直方
体形状に成形する。発泡樹脂成形体１ａ・２ａの底面に
合板等の支え板３を貼り付ける。【効果】従来は踏切板に古い枕木を用いていたので、
枕木が重く設置等の作業性が悪かった。しかし、上記構
成では、踏切板に発泡樹脂成形体１ａ・２ａを用いるこ
とで、踏切板を軽量化できて、踏切板の運搬、設置の作
業をより容易にでき、作業中、万一、踏切板を例えば足
の上に落としてケガをしても、そのケガは軽度なものと
なる。 (57) [Summary] [Structure] The foamed resin moldings 1a and 2a having a strength capable of mounting a construction vehicle are molded into a substantially rectangular parallelepiped shape corresponding to the height of a railroad track. A support plate 3 such as plywood is attached to the bottom surfaces of the foamed resin molded bodies 1a and 2a. [Effect] Traditionally, old sleepers were used for the railroad crossings,
The sleepers were heavy and workability such as installation was poor. However, in the above configuration, by using the foamed resin molded bodies 1a and 2a for the crossing plate, the crossing plate can be made lighter in weight, and the work of transporting and installing the crossing plate can be made easier. Even if the plate is dropped on the foot, for example, and the person is injured, the injury will be mild.

Description

【考案の詳細な説明】[Detailed description of the device]

【０００１】[0001]

【産業上の利用分野】[Industrial applications]

本考案は、鉄道の電線等の補修などに使用される工事用車両を軌道上に進入させるために使用される踏切板に関するものである。 The present invention relates to a railroad crossing plate used for advancing a construction vehicle, which is used for repairing electric wires and the like of a railway, into a track.

【０００２】[0002]

【従来の技術】[Prior Art]

近年、鉄道の修理や補修工事等の場所に迅速に移動できるようにして、それらの工事をより早く開始して迅速に完了させるために、トラックに軌道用の車輪および軌道上でその車体を持ち上げるジャッキを設けた工事用車両が使用されるようになってきている。 In recent years, trucks have been provided with track wheels and their bodies on tracks to enable them to move quickly to locations such as railway repairs and repairs, and to start those works faster and complete faster. Construction vehicles equipped with jacks for lifting have come into use.

【０００３】そのような工事用車両を軌道上に進入させるために、従来では、例えば図４に示すように、軌道２１上をその工事用車両が横切ることのできるように、木製などの枕木２２を踏切板として用いており、その使用方法は、適当な大きさに切断された枕木２２を軌道２１を横切るように各線路を挟んで、前記工事用車両の左右のタイヤ間隔に合わせて２列平行に並べ、さらに、工事用車両をそれら枕木２２上に乗り上げ易くするために、それらの各両端側に傾斜を形成するように砕石２３をそれぞれ積み上げていた。In order to allow such a construction vehicle to enter the track, conventionally, as shown in FIG. 4, for example, a wooden sleeper 22 such as a wooden sleeper 22 is provided so that the construction vehicle can cross the track 21. Is used as a railroad crossing board, and each railroad track is cut across the railroad track 22 that is cut to an appropriate size. The crushed stones 23 were piled up in such a manner that they were arranged in parallel to each other, and in order to make it easier for the construction vehicle to ride on the sleepers 22, they were formed with slopes on both ends thereof.

【０００４】[0004]

【考案が解決しようとする課題】[Problems to be solved by the device]

ところが、上記のような枕木２２を用いるのでは、その重量が重いため、運搬、設置の作業に手間がかかり、また、作業中にそのような枕木２２を足の上に落とすと、大きなケガにつながるという問題を生じている。 However, the use of the above-mentioned sleepers 22 is heavy, so that it takes time and trouble to carry and install the sleepers 22. Moreover, if such sleepers 22 are dropped on the legs during the work, it becomes a big problem. It causes the problem of injury.

【０００５】[0005]

【課題を解決するための手段】[Means for Solving the Problems]

本考案の踏切板は、上記課題を解決するために、工事用車両を載置しうる強度を備える発泡樹脂成形体が、鉄道等の軌道の高さに応じた略直方体形状に成形され、上記発泡樹脂成形体の底面に支え板が貼り付けられていることを特徴としている。 In order to solve the above problems, the railroad crossing plate of the present invention is formed by molding a foamed resin molded body having a strength capable of mounting a construction vehicle into a substantially rectangular parallelepiped shape according to the height of a railroad track, A support plate is attached to the bottom surface of the foamed resin molded body.

【０００６】[0006]

【作用】[Action]

上記の構成によれば、発泡樹脂成形体の底面に支え板が貼り付けられているので、軌道に敷き詰められている砕石などの凹凸による発泡樹脂成形体の変形が防止されることから、工事用車両を載置する踏切板として用いることができる。これにより、踏切板が主に発泡樹脂から成るので、その踏切板を従来より軽量なものとすることができる。 According to the above configuration, since the support plate is attached to the bottom surface of the foamed resin molded body, deformation of the foamed resin molded body due to irregularities such as crushed stones spread on the track is prevented. It can be used as a railroad crossing on which construction vehicles are placed. As a result, since the railroad crossing plate is mainly made of foamed resin, the railroad crossing plate can be made lighter than the conventional one.

【０００７】[0007]

【実施例】【Example】

本考案の一実施例について図１ないし図３に基づいて説明すれば、以下の通りである。踏切板には、図１に示すように、２種の踏切板が使用され、それぞれを外側用踏切板１、内側用踏切板２と呼び、外側用踏切板１には、成形性や圧縮強度に優れた発泡樹脂であるスチレン改質ポリエチレン発泡樹脂を略直方体形状に成形した発泡樹脂成形体１ａが使用され、その形状は、長さ1400mm、幅 500mm、長さ方向一端から長さ1000mmまでは高さ 150mmであって、そこから、発泡樹脂成形体１ａがさらに長さ方向に延びるにつれ、その高さが直線状に、長さ方向での端面での高さが40mmまで低くなる傾斜部１ｂを備えている。 An embodiment of the present invention will be described below with reference to FIGS. As shown in Fig. 1, two types of railroad crossing plates are used as the railroad crossing plate, which are called outer railroad crossing plate 1 and inner railroad crossing plate 2, respectively. The outer railroad crossing plate 1 has moldability and compressive strength. Styrene-modified polyethylene foam resin, which is a superior foam resin, is used in the shape of a rectangular parallelepiped, and the shape is 1400 mm in length, 500 mm in width, and length from one end to the other. The height is up to 1000 mm and 150 mm, and as the foamed resin molded body 1a further extends in the length direction, the height becomes linear and the height at the end face in the length direction decreases to 40 mm. It is provided with the inclined portion 1b.

【０００８】一方、内側用踏切板２には、長さ1000mm、幅 500mm、高さ 150mmの直方体形状に成形された発泡樹脂成形体２ａが使用される。また、それら発泡樹脂成形体１ａ・２ａの底面のほぼ全面には、厚さ12mmの合板等の支え板３がそれぞれ貼り付けられている。On the other hand, for the inside crossing plate 2, a foamed resin molded body 2a molded in a rectangular parallelepiped shape having a length of 1000 mm, a width of 500 mm and a height of 150 mm is used. A support plate 3 such as a plywood plate having a thickness of 12 mm is attached to almost the entire bottom surface of each of the foamed resin molded bodies 1a and 2a.

【０００９】上記各発泡樹脂成形体１ａ・２ａは、ポリエチレン樹脂粒子にスチレンモノマーを重合してスチレン改質樹脂を得た後、そのスチレン改質樹脂に発泡剤を含浸させた発泡性樹脂粒子を、成形型内に充填し、蒸気などの加熱媒体により加熱し、所定発泡倍率に膨張させて得られるスチレン改質ポリエチレン発泡樹脂成形体〔商品名：ピオセラン、積水化成品工業（株）製〕である。Each of the foamed resin molded bodies 1a and 2a is a foamable resin particle obtained by polymerizing a styrene monomer on a polyethylene resin particle to obtain a styrene modified resin, and impregnating the styrene modified resin with a foaming agent. A styrene-modified polyethylene foamed resin molding obtained by filling the mold with a heating medium such as steam and expanding it to a predetermined expansion ratio [Product name: PIOCELAN, manufactured by Sekisui Plastics Co., Ltd.] Is.

【００１０】なお、上記実施例では、そのスチレン改質ポリエチレン発泡樹脂の発泡倍率15 倍の成形体（見掛け比重、0.067g/cm³程度）を用いており、その圧縮強度は、それを JIS Ｋ6767により測定したところ、規定ひずみ10％で 3.5kg/cm²、規定ひずみ25％で 4.0kg/cm²、規定ひずみ50％で 5.1kg/cm²であった。In the above examples, a molded product (apparent specific gravity, about 0.067 g / cm ³ ) of the styrene-modified polyethylene foamed resin having a foaming ratio of 15 times is used, and the compression strength thereof is JIS K6767 was measured by, 3.5 kg / cm ² at a specified strain 10%, 4.0kg / cm ² with 25% Zumi shed defined, it was 5.1 kg / cm ² at a prescribed strain of 50%.

【００１１】その上、発泡樹脂成形体１ａに張りつけられた支え板３では、その幅方向に形成されて支え板３の長さ方向両端にいたる直線状の幅10mmの隙間３ａが、複数、所定の間隔で相互に平行に設けられていて、よって、発泡樹脂成形体１は、各隙間３ａ…によってより大きな可撓性が付与されている。Further, in the support plate 3 attached to the foamed resin molded body 1a, a plurality of linear gaps 3a each having a width of 10 mm are formed in the width direction of the support plate 3 and extend to both ends in the length direction of the support plate 3. The foamed resin molded bodies 1 are provided in parallel with each other at a predetermined interval, so that the foamed resin molded body 1 is provided with greater flexibility by the spaces 3a.

【００１２】発泡樹脂成形体１ａ・２ａには、所定の圧縮強度、例えば２kg/cm²以上の圧縮強度（規定ひずみ、25％）を備えた発泡樹脂成形体であれば、前記のスチレン改質ポリエチレン発泡樹脂に限らず、エチレンまたはプロピレンの単独重合体、エチレン−プロピレン、エチレン−酢酸ビニルの共重合体などのポリオレフィン系樹脂、スチレン系樹脂などの発泡樹脂成形体を使用してもよい。If the foamed resin moldings 1a and 2a are foamed resin moldings having a predetermined compressive strength, for example, a compressive strength (specified strain, 25%) of ² kg / cm ² or more, the styrene modification Not limited to polyethylene foamed resin, polyolefin resin such as ethylene or propylene homopolymer, ethylene-propylene or ethylene-vinyl acetate copolymer, or foamed resin molding such as styrene resin may be used.

【００１３】また、支え板３としては、ベニヤ板等の合板や木材の一枚板、あるいは、所定の強度を有するゴム等からなる樹脂板を使用してもよい。As the support plate 3, a plywood such as a plywood plate, a single plate of wood, or a resin plate made of rubber or the like having a predetermined strength may be used.

【００１４】したがって、支え板３の見掛け比重が１ｇ/cm³程度で、各発泡樹脂成形体１ａ・２ａの見掛け比重が 0.1ｇ/cm³程度であるので、外側踏切板１は17.5kg程度に、また、内側踏切板２は13.5kg程度となる。[0014] Thus, an apparent specific gravity of 1 g / cm ³ about the support plate 3, the apparent specific gravity of the foamed resin molded body 1a · 2a is about 0.1 g / cm ^3, the outer springboard 1 to about 17.5kg The inner crossing plate 2 will weigh about 13.5 kg.

【００１５】このような上記踏切板の使用法としては、図２に示すように、２個の外側用踏切板１・１を、鉄道などの軌道４の各線路４ａ・４ａの外側にほぼ直角にそれぞれ近接して、かつ、傾斜部１ｂが外側としてほぼ直線上にそれぞれ枕木５や砕石６上に載置する。さらに、２個の外側用踏切板１・１を、所定の間隔で平行にそれぞれ同様に載置する。また、２個の内側用踏切板２・２を、軌道４の内側に各線路４ａ・４ａを挟んで、直線上にそれぞれ載置された各外側用踏切板１・１間とやはり直線上となるようにそれぞれ載置する。As a method of using the above-mentioned railroad crossing plate, as shown in FIG. 2, two outer railroad crossing plates 1.1 are provided substantially outside each railroad track 4a. They are placed on the sleepers 5 and the crushed stones 6 at right angles and in close proximity to each other, and the inclined portions 1b are on the substantially straight line as the outside. Further, the two outer crossing plates 1, 1 are similarly placed in parallel at a predetermined interval. In addition, two inner railroad crossing plates 2.2 are sandwiched between the inner railroad tracks 4a, 4a, and each outer railroad crossing plate 1.1 is placed on a straight line and also on the straight line. Place each so that

【００１６】このようにして軌道４を横切るように各踏切板１・２が載置された後、図３に示すように、工事用車両である工事用トラック７を一方の各外側用踏切板１・１における傾斜部１ｂから乗り上げて、各外側用踏切板１および内側用踏切板２上に進め、所定の位置、例えば軌道４を横切って跨ぐ位置まで進めると停止させる。これらの踏切板１・２は、工事用トラック７の６本あるタイヤの各踏切板１・２に対する総当接面積が2000cm²程度であるので、４トン程度の重量まで耐えることができ、また、上記の工事用トラック７の総重量は３トン程度であるので、上記踏切板１・２は充分にその重量に耐えることができる。After the railroad crossing plates 1 and 2 are placed so as to cross the track 4 in this manner, as shown in FIG. 3, one of the outer railroad crossing plates is attached to the construction truck 7 which is a construction vehicle. The vehicle 1 rides up from the inclined portion 1b of 1.1 and advances on each of the outside crossing plate 1 and the inside crossing plate 2, and stops when it advances to a predetermined position, for example, a position across the track 4. Since these railroad crossings 1 and 2 have a total contact area of approximately 2000 cm ² of the six tires of the construction truck 7 with respect to each railroad crossing 1, they can withstand a weight of approximately 4 tons. Since the total weight of the construction truck 7 is about 3 tons, the railroad crossing plates 1 and 2 can sufficiently bear the weight.

【００１７】その後は図示しないが、工事用トラック７の下部中央部に設けたジャッキで、その工事用トラック７を軌道４上に固定して、架線や信号機などの修理や補修工事を行う。このとき、工事用トラック７の重量は各踏切板１・２にはかかっていない。After that, although not shown, the construction truck 7 is fixed on the track 4 with a jack provided in the lower center portion of the construction truck 7 to perform repair or repair work on overhead lines, traffic lights and the like. At this time, the weight of the construction truck 7 is not applied to the railroad crossing plates 1 and 2.

【００１８】このようにして踏切板が使用され、工事用トラック７の入ることのできる位置であれば、どのような軌道４上にも、上記の各踏切板１・２を用いて工事用トラック７を移動させることが可能となる。In this way, the railroad crossing plate is used, and at any position where the construction truck 7 can enter, using the railroad crossing plates 1 and 2 described above on any track 4, the construction truck can be constructed. The lock 7 can be moved.

【００１９】ところで、従来では、踏切板として木製等の枕木を用いていたため、その重量が重く、踏切板の運搬や設置に手間取り、その上、その設置等の作業中に、例えば足の上にその踏切板を落としたりすると、大きなケガに繋がり易かった。By the way, in the past, since sleepers made of wood or the like were used as the railroad crossing plate, the weight thereof was heavy, and it took time to transport and install the crossing plate, and further, during work such as installation, for example, on the foot. It was easy to get a big injury when the railroad crossing was dropped.

【００２０】しかしながら、上記実施例の踏切板では、その重量が約１／７であり、作業員による各踏切板１・２の運搬や設置は容易なものとなり、また、そのような軽量の踏切板１・２を、作業中、万が一例えば足の上に落としても、大きなケガに至ることが低減される。However, in the railroad crossing plate of the above-mentioned embodiment, the weight thereof is about 1/7, which makes it easy for an operator to carry and install the respective rail crossing plates 1 and 2, and such a light rail crossing plate is used. Even if the boards 1 and 2 are dropped during work, for example, on the foot, it is possible to reduce serious injury.

【００２１】その上、各踏切板１・２の底面に支え板３が貼り付けられているので、砕石６上のように平面ではなく凸凹形状の面に各踏切板１・２が載置されても、各発泡樹脂成形体１ａ・２ａ部分が変形したり、割れたりすることはない。また、外側用踏切板１の支え板３には、隙間３ａ…が設けられているため、外側用踏切板１は可撓性に優れ、砕石６上や枕木５と砕石６との境目のように不陸にも追随できるものとなっている。よって、各踏切板１・２は、従来より使用勝手の良いものとなっている。Moreover, since the support plate 3 is attached to the bottom surface of each railroad crossing plate 1 and 2, each railroad crossing plate 1 and 2 is placed on an uneven surface instead of a flat surface like the crushed stone 6. However, the foamed resin molded bodies 1a and 2a are not deformed or cracked. Further, since the support plate 3 of the outer railroad crossing plate 1 is provided with the gaps 3a ..., the outer railroad crossing plate 1 is excellent in flexibility, and is like the boundary between the crushed stone 6 and the sleeper 5 and the crushed stone 6. It is able to follow the rough terrain. Therefore, the railroad crossing plates 1 and 2 are easier to use than the conventional ones.

【００２２】なお、各発泡樹脂成形体１ａ・２ａおよび支え板３から成る踏切板１・２の形状は、上記のように限定されるものではなく、作業員が運搬できる大きさおよび重さの範囲内で、線路４ａ・４ａ間の距離や高さに応じて変更できる。The shape of the railroad crossing plates 1 and 2 composed of the foamed resin molded bodies 1a and 2a and the support plate 3 is not limited to the above, and the size and weight that can be carried by an operator are not limited thereto. Within the range, it can be changed according to the distance and height between the lines 4a and 4a.

【００２３】さらに、各踏切板１・２の上面に、支え板３と同様な板を張りつけた構成としてもよい。このような構成とすることにより、各踏切板１・２に掛かる工事用トラック７等の重量が分散されるため、より多くの重量を支えることができ、各踏切板１・２の適用範囲を拡大することが可能となる。Furthermore, a plate similar to the support plate 3 may be attached to the upper surface of each of the level crossing plates 1 and 2. By adopting such a configuration, the weight of the construction trucks 7 and the like hanging on each railroad crossing plate 1 and 2 is dispersed, so that more weight can be supported, and each rail crossing plate 1 and 2 is applied. It is possible to expand the range.

【００２４】[0024]

【考案の効果】[Effect of the device]

本考案の踏切板は、以上のように、工事用車両を載置しうる強度を備える発泡樹脂成形体が、鉄道等の軌道の高さに応じた略直方体形状に成形され、上記発泡樹脂成形体の底面に支え板が貼り付けられている構成である。 As described above, the railroad crossing plate of the present invention is formed by molding a foamed resin molded body having a strength capable of mounting a construction vehicle into a substantially rectangular parallelepiped shape corresponding to the height of a railroad track. The support plate is attached to the bottom of the body.

【００２５】それゆえ、踏切板が主に発泡樹脂から成るので、その踏切板を従来より軽量なものとすることができる。この結果、踏切板の運搬、設置の作業を容易なものとすることができるという効果を奏し、さらに、その作業中において踏切板を、万一、例えば足の上に落としても、それによって大きなケガに至るということが減少するという効果も奏する。Therefore, since the railroad crossing plate is mainly made of foamed resin, the railroad crossing plate can be made lighter than conventional ones. As a result, the effect of facilitating the work of transporting and installing the railroad crossing plate is achieved, and even if the railroad crossing plate is dropped on the foot, for example, during the work, it will be large. It also has the effect of reducing the chance of injury.

【図面の簡単な説明】[Brief description of drawings]

【図１】本考案の踏切板の斜視図である。FIG. 1 is a perspective view of a railroad crossing plate of the present invention.

【図２】軌道上に載置された上記踏切板の斜視図であ
る。FIG. 2 is a perspective view of the railroad crossing plate placed on a track.

【図３】工事用車両を乗せた上記踏切板の斜視図であ
る。FIG. 3 is a perspective view of the railroad crossing plate on which a construction vehicle is placed.

【図４】従来の踏切板の斜視図である。FIG. 4 is a perspective view of a conventional railroad crossing plate.

【符号の説明】[Explanation of symbols]

１ａ発泡樹脂成形体２ａ発泡樹脂成形体３支え板 1a Foamed resin molded body 2a Foamed resin molded body 3 Support plate

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

【請求項１】工事用車両を載置しうる強度を備える発泡
樹脂成形体が、鉄道等の軌道の高さに応じた略直方体形
状に成形され、上記発泡樹脂成形体の底面に支え板が貼
り付けられていることを特徴とする踏切板。1. A foamed resin molded body having a strength capable of mounting a construction vehicle is molded into a substantially rectangular parallelepiped shape corresponding to the height of a railroad track, and a support plate is provided on the bottom surface of the foamed resin molded body. A railroad crossing board characterized by being attached.