JP2018188881A - Crossing mat - Google Patents

Crossing mat Download PDF

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JP2018188881A
JP2018188881A JP2017092729A JP2017092729A JP2018188881A JP 2018188881 A JP2018188881 A JP 2018188881A JP 2017092729 A JP2017092729 A JP 2017092729A JP 2017092729 A JP2017092729 A JP 2017092729A JP 2018188881 A JP2018188881 A JP 2018188881A
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layer portion
hard layer
laminate
crossing mat
railroad crossing
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JP6910098B2 (en
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隆司 植田
Takashi Ueda
隆司 植田
甲太 原
Kota Hara
甲太 原
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SACOS CORP
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Abstract

PROBLEM TO BE SOLVED: To provide a crossing mat which allows a worker to perform an installation work and a removal work of a protective material for protecting a track without burdening the arms or waist, and which does not require much time or effort to perform the installation work and the removal work.SOLUTION: A laminate is formed by superimposing a hard layer portion comprised of a synthetic resin formed in a tabular shape and a soft layer portion comprised of a synthetic resin formed by softening the hard layer portion. The hard layer portion is disposed on an uppermost surface portion and a lowermost surface portion, with the soft layer portion disposed in the middle, thus forming the laminate. A through hole penetrating in the upper and lower surface directions is provided in the laminate. A column member formed in a columnar shape is fitted in the through hole to integrally fix the hard layer portion and the soft layer portion.SELECTED DRAWING: Figure 1

Description

鉄道にかかる工事の現場においては、重機や車両などが線路を横断して工事をしなければならず、また重機や車両の搬入口として前記重機や車両が線路に乗り上げるなどの作業が多く、その際に、重機や車両によって線路を傷つけてしまうことがないよう、保護する必要があった。そこで従来は、木製の角材を線路の両側及びレールとレールの間に敷き詰めたり、ゴムマットを線路の両側及びレールとレールの間に設置して線路を傷めないように保護していた。
In construction work on railways, heavy machinery and vehicles have to work across the tracks, and there are many operations such as the heavy machinery and vehicles climbing on the tracks as an entrance for heavy machinery and vehicles. At that time, it was necessary to protect the track so that it would not be damaged by heavy machinery or vehicles. Therefore, in the past, wooden square bars were laid down on both sides of the track and between the rails and rails, and rubber mats were installed on both sides of the track and between the rails and rails to protect the tracks from damage.

しかしながら、前記木製の角材やゴムマットにより構成された保護材は、重量が重くなってしまい、それらを運搬する作業者の腕や腰に大きな負担がかかっていた。また、そのため、設置作業や撤去作業に多くの時間や労力を要しているという課題があった。
However, the protective material composed of the above-mentioned wooden squares and rubber mats is heavy, and a heavy burden is placed on the arms and waists of workers who carry them. For this reason, there has been a problem that much time and labor are required for installation work and removal work.

特開２０１５−７１８６７号公報Japanese Patent Laying-Open No. 2015-71867 特開２００３−６４６１１号公報JP 2003-64611 A 実用新案登録第３０７５０３２号公報Utility Model Registration No. 3075032 実用新案登録第２５０７０５６号公報Utility Model Registration No. 2507056

かくして、本発明は前記従来の課題を解消するために創案されたものであり、線路を保護するための保護材の設置作業や撤去作業を行う作業者の腕や腰に大きな負担がかかることがなく、その設置作業や撤去作業に多くの時間や労力を要しない踏切マットを提供することを目的とするものである。
Thus, the present invention was devised in order to solve the above-described conventional problems, and it may take a large burden on the arm and waist of the worker who performs the installation work and the removal work of the protective material for protecting the track. The purpose of the present invention is to provide a railroad crossing mat that does not require much time and labor for its installation work and removal work.

本発明による踏切マットは、
板状に形成された合成樹脂製の硬質層部と、該硬質層部を軟化させて形成した合成樹脂製の軟質層部とを重ねて積層体が形成され、
前記硬質層部は最上面部及び最下面部に配置されると共に、中間に軟質層部が配置されて前記積層体が形成されてなり、
前記積層体には、上下面方向に向かって貫通する貫通穴が設けられ、該貫通穴に、柱状に形成された柱部材が嵌め込まれて、硬質層部および軟質層部が一体固定された、
ことを特徴とし、
または、
前記積層体の最上面部及び最下面部表面側には、合成樹脂製のシート部材が貼着され、前記柱部材の上端面および下端面と固着された、
ことを特徴とし、
または、
前記硬質層部の硬度は、デュロメータ（ASKER C型）計測で、硬度９６であり、前記軟質層部の硬度は、デュロメータ（ASKER C型）計測で硬度６０であり、ほぼ自動車のタイヤの固さである、
ことを特徴とし、
または、
一方側側面に階段状の段差部が形成された、
ことを特徴とし、
または、
敷設された複数枚の踏切マットは、連結部材により連結可能とされた、
ことを特徴とし、
または、
前記積層体の最下面に配置された硬質層部の下面に貼着されたシート部材の下面には滑り止めシートが貼着された、
ことを特徴とし、
または、
長手方向両端側略中央部分にそれぞれ持ち手部が設けられ、該持ち手部を保持して運搬可能とされた、
ことを特徴とするものである。
The railroad crossing mat according to the present invention is
A laminate is formed by stacking a synthetic resin hard layer portion formed in a plate shape and a synthetic resin soft layer portion formed by softening the hard layer portion,
The hard layer portion is disposed on the uppermost surface portion and the lowermost surface portion, the soft layer portion is disposed in the middle, and the laminate is formed,
The laminate is provided with a through-hole penetrating in the vertical direction, and a pillar member formed in a column shape is fitted into the through-hole, and the hard layer portion and the soft layer portion are integrally fixed.
It is characterized by
Or
A synthetic resin sheet member is attached to the uppermost surface portion and the lowermost surface portion side of the laminate, and is fixed to the upper end surface and the lower end surface of the column member.
It is characterized by
Or
The hardness of the hard layer portion is a hardness of 96 by durometer (ASKER C type) measurement, and the hardness of the soft layer portion is a hardness of 60 by durometer (ASKER C type) measurement. Is,
It is characterized by
Or
A stepped step was formed on one side surface,
It is characterized by
Or
A plurality of level crossing mats laid can be connected by a connecting member,
It is characterized by
Or
A non-slip sheet was adhered to the lower surface of the sheet member adhered to the lower surface of the hard layer portion disposed on the lowermost surface of the laminate,
It is characterized by
Or
A handle portion is provided at each of the substantially center portions at both ends in the longitudinal direction, and the handle portion is held and can be transported.
It is characterized by this.

本発明の踏切マットによれば、踏切マットの本体である積層体がポリエチレンで形成された硬質シートと硬質層、該硬質層に可塑剤を添加して軟化させた軟質層からなる３層構造となっている。これにより重機や車両などが乗り上げることにより生じる積層体の上面からの負荷を、最上面部の硬質層で分散し、軟質層で緩衝することができるので、必要な強度を維持しつつ、軽量化を図ることができ、鉄道の工事現場において、高齢者や女性をはじめとして、腕力の弱い作業者であっても、一人で簡単に持ち運ぶことができ、作業者の腕や腰への負担が軽減でき、短時間で設置・撤去が可能で、硬さの異なる同一素材を積層させることにより、軽くても丈夫な踏切マットができる。特に、時間の限られている夜間工事において絶大な効果を発揮する。   According to the railroad crossing mat of the present invention, the laminate which is the main body of the railroad crossing mat has a three-layer structure including a hard sheet and a hard layer formed of polyethylene, and a soft layer softened by adding a plasticizer to the hard layer. It has become. This makes it possible to disperse the load from the upper surface of the laminated body caused by heavy machinery or vehicles riding on the hard layer on the top surface and buffer it with the soft layer, thus reducing the weight while maintaining the required strength. Even in the railway construction site, even elderly workers and women, even weak workers, can easily carry it alone, reducing the burden on the workers' arms and waist It can be installed and removed in a short time, and by layering the same material with different hardness, a light but durable railroad crossing mat can be made. In particular, it has a tremendous effect in night construction where time is limited.

本発明の踏切マットに重機や車両などが乗り上げた際、軟質層が沈み込んで一時的に変形を起こすことがあるが、素材の特性上、荷重がかからない状態で数分間放置すれば復元される。   When heavy machinery or vehicles ride on the railroad crossing mat of the present invention, the soft layer may sink and temporarily deform, but due to the characteristics of the material, it can be restored if left for several minutes under no load. .

持ち手用のロープが長手方向両端側略中央部分の窪みに収納できることで、作業者がロープに足を掛けて転倒することがなく、安全に作業を行うことができる。また、重機や車両などにロープが踏まれて傷むこともない。   Since the rope for the handle can be stored in the depression at the substantially central part on both ends in the longitudinal direction, the operator can safely work without stepping on the rope and falling. Moreover, the ropes are not stepped on heavy machinery or vehicles and are not damaged.

本発明の踏切マットは、同素材で積層されることから接着剤を使用せずに熱溶着による一体化が可能となり、接着剤などを使用した場合における、高温環境下での接着強度低下や、溶け出した接着剤が線路等を汚すことがないとの優れた効果を奏する。
Since the crossing mat of the present invention is laminated with the same material, it can be integrated by heat welding without using an adhesive, and when using an adhesive or the like, the adhesive strength is reduced in a high temperature environment, There is an excellent effect that the melted adhesive does not contaminate the track.

本発明による踏切マットの構成説明図である。It is a structure explanatory view of a railroad crossing mat by the present invention. 本発明による踏切マットの斜視図である。1 is a perspective view of a railroad crossing mat according to the present invention. 連結部材の構成説明図である。It is structure explanatory drawing of a connection member.

以下、本発明を図に示す実施例に基づいて説明する。
符号１は、本発明による踏切マットを示す。該踏切マット１は、ゴム材より軽量な、例えば合成樹脂材であるポリエチレンを素材とした硬質層部２と、該硬質層部２のポリエチレンに可塑剤などを添加して軟化させた、木材やゴム材より軽量な軟質層部３とから積層体４が形成され、該積層体４が踏み切りマット１の本体部として形成される。 Hereinafter, the present invention will be described based on embodiments shown in the drawings.
Reference numeral 1 denotes a railroad crossing mat according to the present invention. The railroad crossing mat 1 includes a hard layer portion 2 made of polyethylene, which is lighter than a rubber material, for example, a synthetic resin material, and wood or softened by adding a plasticizer or the like to the polyethylene of the hard layer portion 2 A laminated body 4 is formed from a soft layer portion 3 that is lighter than a rubber material, and the laminated body 4 is formed as a main body portion of the crossing mat 1.

前記硬質層部２と軟質層部３についての硬度につき説明する。硬質層部２の硬度は、デュロメータ（ASKER C型）で計測すると、硬度９６であり、かなり硬質である。また軟質層部３の硬度は、デュロメータ（ASKER C型）で計測すると、硬度６０であり、ほぼ自動車のタイヤ程度の固さとなっている。
ここで、該踏切マット１の外形について何ら限定されない。しかし、例として、レールとレールの間に入る幅の２分の１の幅を有し、レールの長手方向に向かっては前記２分の１の幅より長い長さにし、略長方形状にして形成されることが多い。 The hardness of the hard layer portion 2 and the soft layer portion 3 will be described. The hardness of the hard layer part 2 is a hardness of 96 when measured with a durometer (ASKER C type), and is quite hard. The hardness of the soft layer portion 3 is 60 when measured with a durometer (ASKER C type), which is almost as hard as an automobile tire.
Here, the outer shape of the crossing mat 1 is not limited at all. However, as an example, it has a width that is half of the width that enters between the rails, and is longer than the half width in the longitudinal direction of the rail, so that it has a substantially rectangular shape. Often formed.

尚、踏切マット１の厚みはレールの高さを越えていれば何ら限定されない。よって、後述するように硬質層部２の中間に介在、配置される軟質層部３の枚数を変更することにより、現場の状況に沿った、例えばレールの高さにあった踏切マット１を提供することが出来る。   The thickness of the railroad crossing mat 1 is not limited as long as it exceeds the rail height. Therefore, as will be described later, by changing the number of the soft layer portions 3 interposed and arranged in the middle of the hard layer portion 2, the railroad crossing mat 1 suitable for the height of the rail, for example, is provided in accordance with the situation at the site. I can do it.

前記硬質層部２は前記積層体４を構成する最上面部及び最下面部に配置され、その中間には複数枚の軟質層部３が介在、配置される。   The hard layer portion 2 is disposed on the uppermost surface portion and the lowermost surface portion constituting the laminated body 4, and a plurality of soft layer portions 3 are interposed and disposed in the middle.

そして、前記最上面部と最下面部に配置された硬質層部２とその中間に複数枚介在、配置された軟質層部３とにより形成された積層体４には、その上下面に向かって貫通する複数個の貫通穴５が設けられ、該貫通穴５には、柱状に形成された例えば合成樹脂材のポリエチレンを素材とする柱部材６が嵌め込まれ、前記積層体４が主として横方向にずれないよう固定できるものとしてある。   And in the laminated body 4 formed by the hard layer part 2 arrange | positioned at the said uppermost surface part and the lowermost surface part, and the soft layer part 3 intervening and arrange | positioned in the middle, toward the upper and lower surfaces A plurality of penetrating through holes 5 are provided, and pillar members 6 made of polyethylene, for example, a synthetic resin material, which are formed in a column shape are fitted into the through holes 5, and the laminate 4 is mainly formed in the lateral direction. It can be fixed so that it does not slip.

さらに、積層体４の最上面部及び最下面部の表面側には、例えば合成樹脂材であるポリエチレンを素材とする硬質の薄いシート部材７が貼着される。   Furthermore, a hard thin sheet member 7 made of, for example, polyethylene, which is a synthetic resin material, is attached to the uppermost surface portion and the lowermost surface portion of the laminate 4.

即ち、前記柱部材６の上端面と下端面については、積層体４の最上面部および最下面部と面一になるよう構成されており、該柱部材６の上端面と下端面及び積層体４の最上面部と最下面部は、前記シート部材７に、例えば熱溶着されてシート部材７と柱部材６及び積層体４とは強固に接続されるものとなる。   That is, the upper end surface and the lower end surface of the column member 6 are configured to be flush with the uppermost surface portion and the lowermost surface portion of the laminate 4, and the upper end surface, the lower end surface, and the laminate of the column member 6 are configured. The uppermost surface portion and the lowermost surface portion 4 are, for example, thermally welded to the sheet member 7, and the sheet member 7, the column member 6, and the laminate 4 are firmly connected.

もって、ポリエチレンを素材とする硬質層部２と軟質層部３、さらにはシート部材７が一体化され、優れた強度を有する積層体４で形成された踏切マット１が形成されることになる。   Accordingly, the hard layer portion 2 and the soft layer portion 3 made of polyethylene and the sheet member 7 are integrated, and the railroad crossing mat 1 formed of the laminate 4 having excellent strength is formed.

しかもその重量をきわめて軽量にすることが出来る。従来の同程度の大きさに形成したゴム材からなる踏切マットは、約４８ｋｇ程度の重量を有するものであったが、本発明の合成樹脂材で形成された踏切マットは約１７ｋｇの重量にすることが出来た。   Moreover, the weight can be made extremely light. The conventional level crossing mat made of rubber material having the same size has a weight of about 48 kg, but the level crossing mat formed of the synthetic resin material of the present invention has a weight of about 17 kg. I was able to do it.

ところで、本発明の踏切マット１は、あらかじめ一方側の側面に段差部９を形成することも出来る。段差部９を形成する意味は以下の通りである。   By the way, the level crossing mat 1 of the present invention can be formed with the step portion 9 on the side surface on one side in advance. The meaning of forming the step portion 9 is as follows.

本発明の踏切マット１は、例えば鉄道のレールの長手方向の側面に設置される。まず、前記レールとレールの間に設置する場合には、レールの高さと同様の高さにして踏切マット１を設置する。このとき、前記段差部９を形成しておき、該段差部９をレール側に向けることで、例えばレール上を走行する車両や重機などの車輪の幅をかわすことができ、安全な走行が確保出来るのである。   The railroad crossing mat 1 of the present invention is installed, for example, on a side surface in the longitudinal direction of a railroad rail. First, when installing between the rails, the railroad crossing mat 1 is installed at the same height as the rails. At this time, by forming the step portion 9 and directing the step portion 9 toward the rail, for example, it is possible to dodge the width of the wheel of a vehicle or heavy machinery that travels on the rail, thereby ensuring safe traveling. It can be done.

また、レールの外側に設置する場合には、レールの反対側に段差部９がくるように設置する。すなわち、レールの外側に設置する踏切マット１については、レールの当接側ではなく、その反対側に段差部９がくるように設置するのである。そうすれば、重機や車両などは、段差部９があることにより、踏切マット１への乗り上げがスムーズに行えるものとなる。   Moreover, when installing in the outer side of a rail, it installs so that the level | step-difference part 9 may come in the other side of a rail. That is, the railroad crossing mat 1 installed outside the rail is installed so that the stepped portion 9 is not on the rail contact side but on the opposite side. Then, heavy machinery, vehicles, and the like can smoothly ride on the railroad crossing mat 1 due to the step portion 9.

ついで、本発明の踏切マット１には、作業者が容易に持って運搬できる様、持ち手部１０が設けられている。該持ち手部１０は、例えば、ポリエチレン製のロープなどで形成され、該持ち手部１０は本発明の踏切マット１の長手方向両端側において、その中央部分にそれぞれ取り付けられて設けられる。   Next, the railroad crossing mat 1 of the present invention is provided with a handle portion 10 so that an operator can easily carry and carry it. The handle portion 10 is formed of, for example, a polyethylene rope or the like, and the handle portion 10 is provided to be attached to the center portion at both ends in the longitudinal direction of the railroad crossing mat 1 of the present invention.

符号１１は、前記ロープなどで形成された持ち手部１０を収納するための窪みであり、該窪み１１の中に踏み切りマット１の最下面部まで通ずる取付孔を設け、該取付孔にロープ状の持ち手部１０を通して持ち手部１０が取り付けられる。   Reference numeral 11 denotes a recess for accommodating the handle portion 10 formed of the rope or the like, and an attachment hole is provided in the recess 11 so as to reach the lowermost surface portion of the stepping mat 1, and the attachment hole has a rope shape. The handle 10 is attached through the handle 10.

尚、踏切マット１を設置した後に、前記ロープなどで形成された持ち手部１０を前記窪み１１に納めることで、踏切マット１の上面部をフラットに保つことができる。また、作業者が前記持ち手部１０に足をとられて転倒することがなく、安全に作業を行うことができる。また、重機や車両などに持ち手部１０が踏まれて傷むこともない。   In addition, after installing the level crossing mat 1, the upper surface part of the level crossing mat 1 can be kept flat by storing the handle portion 10 formed of the rope or the like in the recess 11. In addition, the operator can work safely without taking a foot on the handle portion 10 and falling down. Further, the handle 10 is not stepped on and damaged by heavy machinery or vehicles.

ところで、本発明の踏切マット１は前述したように軽量にしたことから、特に重機や車両などで乗り上げた際に、例えば鉄道のレール部８の外側に敷設した複数枚の踏切マット１がおのおの横方向や縦方向にずれ動くことが想定される。   By the way, since the railroad crossing mat 1 of the present invention is light-weighted as described above, a plurality of railroad crossing mats 1 laid on the outside of the rail portion 8 of the railroad, for example, are installed next to each other, especially when riding on heavy machinery or vehicles. It is assumed to move in the direction and the vertical direction.

よって、前記のずれを防止するため、踏切マット１の長手方向両端面および短手方向の一側面側（段差部９が形成されていない側面側）の近傍位置に、シート部材７及び硬質層部２、軟質層部３の上段部までを貫通する連結孔１２を穿設する。そして、複数枚の踏切マット１を敷設する際に、隣接する踏切マット１の連結孔１２に跨がらせて、市販の結束具や専用の連結部材１３を取り付け、これを連結することにより敷設したおのおのの踏切マット１が横方向や縦方向にずれるのを防止することができる。   Therefore, in order to prevent the above-described deviation, the sheet member 7 and the hard layer portion are disposed at positions in the vicinity of both end surfaces in the longitudinal direction of the railroad crossing mat 1 and one side surface in the lateral direction (the side surface on which the step portion 9 is not formed). 2. A connecting hole 12 that penetrates up to the upper stage of the soft layer portion 3 is formed. Then, when laying a plurality of level crossing mats 1, they are laid by connecting a commercially available binding tool or a dedicated connection member 13 across the connection holes 12 of the adjacent level crossing mats 1 and connecting them. Each level crossing mat 1 can be prevented from shifting in the horizontal direction or the vertical direction.

尚、図１において符号８は滑り止めシートを示す。このように滑り止めシート８を積層体４の最下面に配置された硬質層部２の下面に貼着されたシート部材７のさらに下面に貼着するのが好ましい。   In FIG. 1, reference numeral 8 denotes an anti-slip sheet. Thus, it is preferable that the non-slip sheet 8 is adhered to the lower surface of the sheet member 7 adhered to the lower surface of the hard layer portion 2 disposed on the lowermost surface of the laminate 4.

該滑り止めシート８は、ＥＶＡ樹脂などで構成される。例えばエチレン・酢酸ビニル共重合樹脂で、エチレン含有が高く、酢酸ビニルの含有率が略40%の範囲で多くの種類がある。また、−５８℃まで可撓性があり、水、紫外線に優れた安定性があると同時に、ゴム弾性、柔軟性、強靭性、低温特性、耐候性など多くの優れた特性を備えている。   The anti-slip sheet 8 is made of EVA resin or the like. For example, there are many types of ethylene / vinyl acetate copolymer resins having a high ethylene content and a vinyl acetate content of approximately 40%. Moreover, it is flexible up to -58 ° C., has excellent stability to water and ultraviolet rays, and at the same time has many excellent characteristics such as rubber elasticity, flexibility, toughness, low temperature characteristics, and weather resistance.

酢酸ビニルの含有量とメルトフローレートにより性質が異なり、メルトフローレート一定で酢酸ビニル含有量が増加すると、ゴム弾性、柔軟性、接着性、透明性などが向上し、逆の場合には剛性、耐摩擦性、電気絶縁性などが向上する。   The properties differ depending on the vinyl acetate content and the melt flow rate.If the vinyl acetate content increases at a constant melt flow rate, the rubber elasticity, flexibility, adhesiveness, transparency, etc. are improved. Friction resistance, electrical insulation, etc. are improved.

本発明による踏切マット１は、踏切マット１の本体となる積層体４がポリエチレンで形成されたシート部材７と硬質層部２、該硬質層に可塑剤を添加して軟化させた軟質層部３とからなる、いわゆる三層構造としてある。これにより重機や車両などが乗り上げることにより生じる踏切マット１最上面部からの負荷を、最上面部の硬質層部２で分散し、中間の軟質層部３で緩衝することができるので、必要な強度を維持しつつ、軽量化を図ることができる。   A crossing mat 1 according to the present invention includes a sheet member 7 in which a laminate 4 that is a main body of the crossing mat 1 is formed of polyethylene, a hard layer portion 2, and a soft layer portion 3 that is softened by adding a plasticizer to the hard layer. This is a so-called three-layer structure. As a result, the load from the uppermost surface of the railroad crossing mat 1 generated when the heavy machinery or the vehicle rides on can be dispersed by the hard layer portion 2 of the uppermost surface portion and buffered by the intermediate soft layer portion 3. The weight can be reduced while maintaining the strength.

そして、例えば鉄道工事の現場において、作業者一人でも簡単に持ち運ぶ重量にして形成でき、運搬し、設置する作業者の腕や腰への負担を軽減できる。
よって、短時間で設置・撤去が可能で、軽くても、きわめて頑丈な踏切マット１が提供できる。 For example, at the site of railway construction, even one worker can easily carry the weight, and the burden on the arm and waist of the worker who carries and installs can be reduced.
Therefore, installation / removal can be performed in a short time, and a very sturdy level crossing mat 1 can be provided even if it is light.

また、本発明の踏切マット１、ポリエチレンを素材とする硬質層部２の代わりに、例えばゴム製のマットを使用しても軽量の踏切マットを形成することはできる。しかしながら、軟質層部３のポリエチレンとゴムとでは異素材となることから、接着剤による固定が不可欠となる。適切な接着剤を用いることで接着が可能となるが、真夏の炎天下では接着剤が高温環境下で劣化するおそれがあり、接着強度の低下や溶け出した接着剤が線路等を汚す可能性が危惧される。また、粘着テープを用いて、外周を巻き回して固定すると、重機や車両などの繰り返しの乗り降りに耐えられず、粘着テープの破損をまねく。   Further, instead of the level crossing mat 1 and the hard layer portion 2 made of polyethylene, a lightweight level crossing mat can be formed by using, for example, a rubber mat. However, since polyethylene and rubber of the soft layer portion 3 are different materials, fixing with an adhesive is indispensable. Adhesion can be achieved by using an appropriate adhesive, but the adhesive may deteriorate under high-temperature environments in midsummer, and there is a possibility that the adhesive strength will decrease or the melted adhesive will contaminate the lines. I'm worried. Moreover, when the outer periphery is wound and fixed using an adhesive tape, it cannot withstand repeated loading and unloading of heavy machinery or vehicles, resulting in damage to the adhesive tape.

簡易的な固定方法として、ロープやナイロンアンカー等を使用することで、接着剤を使用せずに異素材同士の固定が可能となるが、踏切マットの上面をフラットにすることはできない。   As a simple fixing method, it is possible to fix different materials without using an adhesive by using a rope, a nylon anchor, or the like, but it is not possible to flatten the upper surface of the crossing mat.

しかしながら、本発明の踏切マット１は、本体である積層体４がポリエチレンで形成された硬質のシート部材７と硬質層部２、該硬質層部２に可塑剤を添加して軟化させた軟質層部３とからなる３層構造とした。   However, the railroad crossing mat 1 of the present invention includes a hard sheet member 7 and a hard layer portion 2 in which a laminate 4 as a main body is formed of polyethylene, and a soft layer obtained by adding a plasticizer to the hard layer portion 2 to be softened. A three-layer structure consisting of part 3 was formed.

これにより重機や車両などが乗り上げることから生じる積層体４の上面からの負荷を、最上面部の硬質層部２で分散し、中間の軟質層部３で緩衝することができるので、必要な強度を維持しつつ、軽量化を図ることもでき、鉄道の工事現場において、高齢者や女性をはじめとして、腕力の弱い作業者であっても、一人で簡単に持ち運ぶことができる。   As a result, the load from the upper surface of the laminated body 4 caused by the heavy machinery or the vehicle getting on can be dispersed by the uppermost hard layer portion 2 and buffered by the intermediate soft layer portion 3, so that the necessary strength is obtained. It is also possible to reduce the weight while maintaining safety, and even in the railway construction site, even elderly workers and women, including weak workers, can easily carry it alone.

もって、作業者の腕や腰への負担が軽減でき、短時間で設置・撤去が可能で、硬さの異なる同一素材を積層させることにより、軽くても丈夫な踏切マット１が提供できる。特に、時間の限られている夜間工事において絶大な効果を発揮することが期待される。   Thus, the burden on the operator's arm and waist can be reduced, and installation and removal can be performed in a short time. By stacking the same materials having different hardnesses, a light but durable crossing mat 1 can be provided. In particular, it is expected to exert a tremendous effect in night construction where time is limited.

本発明の踏切マット１に重機や車両などが乗り上げた際、軟質層部３が沈み込んで一時的に変形を起こすこともあるが、素材の特性上、荷重がかからない状態で数分間放置すれば復元される。   When heavy machinery or vehicles ride on the railroad crossing mat 1 of the present invention, the soft layer portion 3 may sink and temporarily deform, but due to the characteristics of the material, if left undisturbed for several minutes. Restored.

さらに、ロープ状の持ち手部１０は長手方向両端側略中央部分の窪みに収納できることで、作業者がロープ状の持ち手部１０に足を引っかけて転倒することがなく、安全に作業を行うことができる。また、重機や車両などにロープが踏まれて傷むこともない。   Furthermore, since the rope-shaped handle 10 can be stored in the recesses at the substantially central portions on both ends in the longitudinal direction, the operator can safely work without catching the rope-shaped handle 10 and falling down. be able to. Moreover, the ropes are not stepped on heavy machinery or vehicles and are not damaged.

前述したように本発明の踏切マット１は、同素材で積層されることから接着剤を使用せずに熱溶着による一体化が可能となり、接着剤などを使用した場合における、高温環境下での接着強度低下や、溶け出した接着剤が線路等を汚すことがない。   As described above, the railroad crossing mat 1 of the present invention can be integrated by heat welding without using an adhesive because it is laminated with the same material, and in the case of using an adhesive or the like in a high temperature environment. The adhesive strength is not lowered and the melted adhesive does not contaminate the track.

このように、本発明は、前述した事情に鑑みて創案され、鉄道の工事現場において、高齢者や女性をはじめとして、腕力の弱い作業者であっても、一人で簡単に持ち運ぶことができ、作業者の腕や腰への負担が軽減でき、短時間でも設置・撤去が可能となる。接着剤を使用することなく、硬さの異なる同一素材を熱溶着により積層し、一体化させることにより、軽くても丈夫な踏切マット１を提供することができる。
Thus, the present invention was created in view of the circumstances described above, and can be easily carried alone by a person with weak arm strength, including elderly people and women, at the construction site of the railway. The burden on the operator's arm and waist can be reduced, and installation and removal can be done in a short time. By using the same materials having different hardnesses laminated by heat welding and integrating them without using an adhesive, it is possible to provide a level crossing mat 1 that is light but strong.

１ 踏切マット
２ 硬質層部
３ 軟質層部
４ 積層体
５ 貫通穴
６ 柱部材
７ シート部材
８ 滑り止め部材
９ 段差部
１０ 持ち手部
１１ 窪み
１２ 連結孔
１３ 連結部材 DESCRIPTION OF SYMBOLS 1 Level crossing mat 2 Hard layer part 3 Soft layer part 4 Laminate body 5 Through-hole 6 Column member 7 Sheet member 8 Anti-slip member 9 Step part 10 Handle part 11 Depression 12 Connection hole 13 Connection member

Claims (7)

板状に形成された合成樹脂製の硬質層部と、該硬質層部を軟化させて形成した合成樹脂製の軟質層部とを重ねて積層体が形成され、
前記硬質層部は最上面部及び最下面部に配置されると共に、中間に軟質層部が配置されて前記積層体が形成されてなり、
前記積層体には、上下面方向に向かって貫通する貫通穴が設けられ、該貫通穴に、柱状に形成された柱部材が嵌め込まれて、硬質層部および軟質層部が一体固定された、
ことを特徴とする踏切マット。
A laminate is formed by stacking a synthetic resin hard layer portion formed in a plate shape and a synthetic resin soft layer portion formed by softening the hard layer portion,
The hard layer portion is disposed on the uppermost surface portion and the lowermost surface portion, the soft layer portion is disposed in the middle, and the laminate is formed,
The laminate is provided with a through-hole penetrating in the vertical direction, and a pillar member formed in a column shape is fitted into the through-hole, and the hard layer portion and the soft layer portion are integrally fixed.
A crossing mat characterized by that.
前記積層体の最上面部及び最下面部表面側には、合成樹脂製のシート部材が貼着され、前記柱部材の上端面および下端面と固着された、
ことを特徴とする請求項１記載の踏切マット。
A synthetic resin sheet member is attached to the uppermost surface portion and the lowermost surface portion side of the laminate, and is fixed to the upper end surface and the lower end surface of the column member.
The railroad crossing mat according to claim 1.
前記硬質層部の硬度は、デュロメータ（ASKER C型）計測で、硬度９６であり、前記軟質層部の硬度は、デュロメータ（ASKER C型）計測で硬度６０であり、ほぼ自動車のタイヤの固さである、
ことを特徴とする請求項１または請求項２記載の踏切マット。
The hardness of the hard layer portion is a hardness of 96 by durometer (ASKER C type) measurement, and the hardness of the soft layer portion is a hardness of 60 by durometer (ASKER C type) measurement. Is,
A railroad crossing mat according to claim 1 or claim 2, wherein
一方側側面に階段状の段差部が形成された、
ことを特徴とする請求項１、請求項２または請求項３に記載の踏切マット。
A stepped step was formed on one side surface,
The railroad crossing mat according to claim 1, 2, or 3.
敷設された複数枚の踏切マットは、連結部材により連結可能とされた、
ことを特徴とする請求項１、請求項２、請求項３または請求項４に記載の踏切マット。
A plurality of level crossing mats laid can be connected by a connecting member,
The railroad crossing mat according to claim 1, claim 2, claim 3, or claim 4, wherein
前記積層体の最下面に配置された硬質層部の下面に貼着されたシート部材の下面には滑り止めシートが貼着された、
ことを特徴とする請求項１、請求項２、請求項３、請求項４または請求項５に記載の踏切マット。
A non-slip sheet was adhered to the lower surface of the sheet member adhered to the lower surface of the hard layer portion disposed on the lowermost surface of the laminate,
The railroad crossing mat according to claim 1, claim 2, claim 3, claim 4 or claim 5, wherein
長手方向両端側略中央部分にそれぞれ持ち手部が設けられ、該持ち手部を保持して運搬可能とされた、
ことを特徴とする請求項１、請求項２、請求項３、請求項４、請求項５または請求項６に記載の踏切マット。
A handle portion is provided at each of the substantially center portions at both ends in the longitudinal direction, and the handle portion is held and can be transported.
A railroad crossing mat according to claim 1, claim 2, claim 3, claim 4, claim 5 or claim 6.
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