JP2507056Y2 - Crossing board - Google Patents
Crossing boardInfo
- Publication number
- JP2507056Y2 JP2507056Y2 JP1991069457U JP6945791U JP2507056Y2 JP 2507056 Y2 JP2507056 Y2 JP 2507056Y2 JP 1991069457 U JP1991069457 U JP 1991069457U JP 6945791 U JP6945791 U JP 6945791U JP 2507056 Y2 JP2507056 Y2 JP 2507056Y2
- Authority
- JP
- Japan
- Prior art keywords
- railroad crossing
- foamed resin
- plate
- resin molded
- molded body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
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- Road Paving Structures (AREA)
Description
【０００１】[0001]
【産業上の利用分野】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。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a railroad crossing plate used for advancing a construction vehicle, which is used for repairing electric wires of railways, into a track.
【０００２】[0002]
【従来の技術】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。2. Description of the Related Art In recent years, tracks have been provided with wheels for tracks and on-tracks so that they can be quickly moved to places such as railway repairs and repair works, and those works can be started earlier and completed more quickly. Therefore, construction vehicles equipped with a jack for lifting the vehicle body have come to be used.
【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２
１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, a track 2 is used.
A sleeper 22 made of wood or the like is used as a railroad crossing plate so that the construction vehicle can cross the top 1. The use method is that the sleeper 22 cut into an appropriate size is used for the track 21.
In order to sandwich each track so as to traverse, line up in parallel in two rows according to the left and right tire intervals of the construction vehicle, and to make it easier to climb the construction vehicle on the sleepers 22,
The crushed stones 23 were piled up so as to form an inclination on each end side thereof.
【０００４】[0004]
【考案が解決しようとする課題】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 a lot of time to carry and install the sleepers 22. Dropping it on top of it causes serious injury.
【０００５】[0005]
【課題を解決するための手段】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-mentioned problems, a railroad crossing plate of the present invention has a foamed resin molded body having a strength capable of mounting a construction vehicle depending on the height of a railroad track or the like. It is characterized in that it is molded into a substantially rectangular parallelepiped shape, and a support plate is attached to the bottom surface of the foamed resin molded body.
【０００６】[0006]
【作用】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 construction, 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 unevenness such as crushed stones spread on the track is prevented. It can be used as a railroad crossing plate on which a construction vehicle is placed. Thus, 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】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１
ｂを備えている。DESCRIPTION OF THE PREFERRED EMBODIMENTS The following will describe one embodiment of the present invention with reference to FIGS. On the crossing board,
As shown in FIG. 1, two types of railroad crossing plates are used, and they are called outer railroad crossing plate 1 and inner railroad crossing plate 2, respectively. The outer railroad crossing plate 1 has a foamed resin excellent in moldability and compression strength. A foamed resin molded body 1a obtained by molding a styrene-modified polyethylene foamed resin which is a substantially rectangular parallelepiped shape is used, and its shape is a length.
The height is 1400 mm, the width is 500 mm, and the height from one end to 1000 mm is 150 mm. From there, the height becomes linear as the foamed resin molded body 1a further extends in the lengthwise direction.
Inclined part 1 where the height at the end face in the length direction decreases to 40 mm
b.
【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, the inside crossing plate 2 has a length of 1000 mm,
A foamed resin molded body 2a molded in a rectangular parallelepiped shape having 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。The foamed resin moldings 1a and 2a are obtained by polymerizing polyethylene resin particles with a styrene monomer to obtain a styrene modified resin, and then impregnating the styrene modified resin with a foaming agent. , A styrene-modified polyethylene foamed resin molded product (trade name: PIOCELAN, manufactured by Sekisui Plastics Co., Ltd.) that is obtained by filling a mold and heating it with a heating medium such as steam and expanding it to a predetermined expansion ratio. is there.
【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 its compressive strength is JIS K6767. was measured by, 3.5 kg at a defined strain 10% / cm 2, 4.0kg / cm 2 at a prescribed strain of 25%,
It was 5.1 kg / cm 2 at the specified 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。Moreover, in the support plate 3 attached to the foamed resin molded body 1a, a plurality of linear gaps 10a 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. Are provided in parallel with each other at intervals of, so that the foamed resin molded body 1 is provided with greater flexibility by the respective gaps 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。The foamed resin moldings 1a and 2a have a predetermined compressive strength, for example, a compressive strength of 2 kg / cm 2 or more (specified strain,
25%) as long as it is a foamed resin molded product, not only the styrene-modified polyethylene foamed resin described above, but also a polyolefin-based resin such as ethylene or propylene homopolymer, ethylene-propylene, or ethylene-vinyl acetate copolymer. A foamed resin molding such as a resin or a 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 veneer 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。Therefore, the apparent specific gravity of the support plate 3 is 1 g.
/ In cm 3 or so, since 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 17.5 kg, The inner springboard 2 is about 13.5kg .
【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。The use of such a railroad crossing plate is as follows.
As shown in FIG. 2, the two outside railroad crossing plates 1 and 1 are close to the outsides of the railroad tracks 4 on the tracks 4a and 4a at substantially right angles, and the inclined portion 1b is almost outside. Place them on the sleepers 5 and the crushed stones 6 in a straight line. further,
The two outer crossing plates 1, 1 are similarly placed in parallel at predetermined intervals. Also, two inside crossing plates 2.2
Are placed on the inner side of the track 4 so as to be also on the straight line with the outer railroad crossing plates 1 and 1 placed on the straight lines with the lines 4a, 4a interposed therebetween.
【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 way, as shown in FIG. 3, one of the outer railroad crossing plates is attached to the construction truck 7 which is a construction vehicle. 1
The vehicle 1 rides up from the inclined portion 1b in 1 and advances to each of the outside railroad crossing plate 1 and the inside railroad crossing plate 2, and stops when it advances to a predetermined position, for example, a position across the track 4.
These railroad crossings 1 and 2 have a total contact area of 2000 cm 2 with respect to the respective railroad crossings 1 and 2 of the six tires of the construction truck 7.
Since the construction truck 7 can bear a weight of about 4 tons, and the total weight of the construction truck 7 is about 3 tons, the railroad crossing plates 1 and 2 can sufficiently bear the weight. it can.
【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。Although not shown thereafter, the construction truck 7
The construction truck 7 is fixed on the track 4 with a jack provided in the lower central portion of the above, and repairs and repair work for overhead lines and traffic signals are performed. At this time, the weight of the construction truck 7 is not applied to each of the level 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, the above-mentioned railroad crossing plates 1 and 2 are used on any track 4 to construct the construction truck. 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 such as wood were used as the railroad crossing plates, the weight thereof was heavy, and it took time to transport and install the crossing rails.
For example, if the railroad crossing plate was dropped on the foot, it could easily lead to a large injury.
【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 level crossing plate of the above embodiment,
The weight is about 1/7, and each railroad crossing board 1
It is easy to carry and install the crossing 2, and even if such a lightweight crossing plate 1 or 2 is dropped on the foot, for example, during work, a serious injury is reduced.
【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。In addition, a support plate 3 is provided on the bottom of each railroad crossing plate 1 and 2.
Since each of the crossing plates 1 and 2 is placed on an uneven surface instead of a flat surface like the crushed stone 6, each foamed resin molded body 1a and 2a is deformed or cracked. There is nothing to do. Further, since the support plate 3 of the outer railroad crossing plate 1 is provided with the gaps 3a, ...
Is excellent in flexibility and can follow unevenly like the boundary between the crushed stone 6 and the sleeper 5 and the crushed stone 6. Therefore,
The railroad crossing plates 1 and 2 are more convenient than ever before.
【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-described one, and is of a size and weight that can be carried by an operator. 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。Further, 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. With such a configuration, the weight of the construction truck 7 or the like hanging on each railroad crossing plate 1 or 2 is dispersed, so that more weight can be supported, and the applicable range of each railroad crossing plate 1 or 2 can be supported. It is possible to expand.
【００２４】[0024]
【考案の効果】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, in the crossing plate of the present invention, the foamed resin molded body having the strength capable of mounting the construction vehicle is molded into a substantially rectangular parallelepiped shape corresponding to the height of the railroad track. A support plate is attached to the bottom surface of the foamed resin molded 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 the conventional one. As a result, there is an effect that the work of transporting and installing the railroad crossing plate can be facilitated. Furthermore, even if the railroad crossing plate is dropped on the foot during the work, it is possible to make a big noise. It also has the effect of reducing the chance of injury.
【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.
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 (1)
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991069457U JP2507056Y2 (en) | 1991-08-30 | 1991-08-30 | Crossing board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991069457U JP2507056Y2 (en) | 1991-08-30 | 1991-08-30 | Crossing board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0522603U JPH0522603U (en) | 1993-03-23 |
| JP2507056Y2 true JP2507056Y2 (en) | 1996-08-14 |
Family
ID=13403202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1991069457U Expired - Lifetime JP2507056Y2 (en) | 1991-08-30 | 1991-08-30 | Crossing board |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2507056Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018188881A (en) * | 2017-05-09 | 2018-11-29 | サコス株式会社 | Crossing mat |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5647541B2 (en) * | 2011-02-24 | 2014-12-24 | 積水化成品工業株式会社 | Temporary road for railway construction and its construction method |
-
1991
- 1991-08-30 JP JP1991069457U patent/JP2507056Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018188881A (en) * | 2017-05-09 | 2018-11-29 | サコス株式会社 | Crossing mat |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0522603U (en) | 1993-03-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |