JP2020007784A - Rail fastening device for steel bridge direct-coupled track - Google Patents

Rail fastening device for steel bridge direct-coupled track Download PDF

Info

Publication number
JP2020007784A
JP2020007784A JP2018129596A JP2018129596A JP2020007784A JP 2020007784 A JP2020007784 A JP 2020007784A JP 2018129596 A JP2018129596 A JP 2018129596A JP 2018129596 A JP2018129596 A JP 2018129596A JP 2020007784 A JP2020007784 A JP 2020007784A
Authority
JP
Japan
Prior art keywords
rail
fastening device
steel bridge
bolt insertion
bridge
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.)
Granted
Application number
JP2018129596A
Other languages
Japanese (ja)
Other versions
JP7051623B2 (en
Inventor
泰典 榎本
Yasunori Enomoto
泰典 榎本
幹大 岩▲崎▼
Mikihiro Iwasaki
幹大 岩▲崎▼
佑亮 関野
Yusuke Sekino
佑亮 関野
小佐野　浩一
Koichi Osano
浩一 小佐野
江藤　仁
Hitoshi Eto
仁 江藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KOWA KASEI
East Japan Railway Co
Kowa Kasei KK
Original Assignee
KOWA KASEI
East Japan Railway Co
Kowa Kasei KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by KOWA KASEI, East Japan Railway Co, Kowa Kasei KK filed Critical KOWA KASEI
Priority to JP2018129596A priority Critical patent/JP7051623B2/en
Publication of JP2020007784A publication Critical patent/JP2020007784A/en
Application granted granted Critical
Publication of JP7051623B2 publication Critical patent/JP7051623B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Connection Of Plates (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

To provide a rail fastening device for steel bridge direct-coupled track which can sufficiently absorb the displacement between the fastening device and the bridge girder bolt insertion holes of the steel bridge due to rail creepage.SOLUTION: A rail fastening device for steel bridge direct-coupled track includes: a pair of pressers (14A, 14B) for pressing lower flanges on the left and right of a rail directly or through a joint plate to fix the rail to a bridge girder of a steel bridge; and retainers (11A, 11B) coupled to the bridge girder of the steel bridge for holding the pair of pressers. The retainers have two or more bolt insertion holes through which fixing bolts arranged to penetrate the retainers and the bridge girder are inserted. The pressers have a bolt insertion hole through which a fastening bolt, provided to penetrate the presser and to be locked so that a head thereof is engaged with the retaining part of the retainers, is inserted. The bolt insertion holes of the retainers and the pressers are each formed as a slot elongated in the rail extending direction.SELECTED DRAWING: Figure 1

Description

本発明は、鉄道の軌道におけるレール締結装置に関し、特に鋼橋の橋桁に直接固定される鋼橋直結軌道用レール締結装置に関する。   The present invention relates to a rail fastening device for a railway track, and more particularly to a rail fastening device for a steel bridge directly connected track that is directly fixed to a bridge girder of a steel bridge.

従来、鉄道の軌道におけるレール締結装置には、鋼橋の橋桁にレール締結装置が直接固定される鋼橋直結軌道用レール締結装置がある。鋼橋直結軌道用レール締結装置は、橋桁に形成した穴にボルトを挿通して締結装置のベース部材を固定し、該ベース部材の上に、レールの下部フランジ部を押える押さえ具もしくは板ばねを装着する構造を有している。かかる構造を有する鋼橋直結軌道用レール締結装置としては、例えば、特許文献１に開示されているものがある。   2. Description of the Related Art Conventionally, as a rail fastening device in a railway track, there is a rail fastening device for a steel bridge directly connected track in which the rail fastening device is directly fixed to a bridge girder of a steel bridge. A rail fastening device for a steel bridge direct-coupled track, a bolt is inserted into a hole formed in a bridge girder to fix a base member of the fastening device, and a holding member or a leaf spring for pressing a lower flange portion of a rail is provided on the base member. It has a mounting structure. As a rail fastening device for a steel bridge directly connected track having such a structure, there is one disclosed in Patent Document 1, for example.

鋼橋直結軌道用レール締結装置は、橋桁に直接固定される構成であるため、枕木に固定される通常のレール締結装置に比べて作業性が良いという利点がある。しかし、鋼橋直結軌道用レール締結装置は、橋桁に形成したボルト挿通穴の位置とベース部材に設けられているボルト挿通穴の位置とが合致しないと取付けが行なえないという課題がある。
そこで、特許文献１のレール締結装置においては、レール敷設方向と直交する方向に長いボルト挿通用の長穴をベースプレートに形成することで、橋桁との間でボルト挿通穴同士の位置ずれを吸収できるようにしている。 Since the rail fastening device for a steel bridge directly connected track is configured to be directly fixed to a bridge girder, there is an advantage that workability is better than a normal rail fastening device fixed to a sleeper. However, the rail fastening device for a steel bridge directly connected track has a problem that mounting cannot be performed unless the position of the bolt insertion hole formed in the bridge girder matches the position of the bolt insertion hole provided in the base member.
Therefore, in the rail fastening device of Patent Literature 1, a long hole for bolt insertion that is long in a direction orthogonal to the rail laying direction is formed in the base plate, so that a positional shift between the bolt insertion holes with the bridge girder can be absorbed. Like that.

特開平１１−１２４８０３号公報JP-A-11-124803

鉄道の軌道においては通常数１０メートルの長さのレールを順次継ぎ足すことで敷設され、前後のレール間は継ぎ目板と呼ばれる部材が結合されている。鋼橋上においては、設置当初においては、図５（Ａ）に示すようにレール同士の継ぎ目Ｂがレール締結装置の中心線Ｃ−Ｃ上に来るように設定されるが、鉄道用レールにはふく進と呼ばれる現象があり、継ぎ目がレール締結装置の中心から次第にレールの長手方向へずれて、図５（Ｂ）に示すように継ぎ目板２１をレールに固定するナット２３とレール締結装置の押さえ具１４とが干渉してしまうことがある。   Railroad tracks are usually laid by sequentially adding rails having a length of several tens of meters, and a member called a seam plate is connected between the front and rear rails. On the steel bridge, at the beginning of the installation, the joint B between the rails is set so as to be on the center line CC of the rail fastening device as shown in FIG. There is a phenomenon called advancing, and the seam gradually shifts from the center of the rail fastening device in the longitudinal direction of the rail, and as shown in FIG. 5 (B), a nut 23 for fixing the seam plate 21 to the rail and a holding tool of the rail fastening device. 14 may interfere with each other.

一方、レール締結装置には、左右のレール間の電気的な導通を防止するために絶縁部材が設けられており、この絶縁部材は数年ごとに交換する必要があり、その作業の際には固定用ボルトを外すことが必須である。しかし、レールのふく進で継目ボルトまたはナットとレール締結装置の押さえ具や固定用ボルトとが干渉している箇所では、絶縁部材を交換した後に固定用ボルトの再度取り付けることができないことがあるという課題があった。   On the other hand, the rail fastening device is provided with an insulating member to prevent electrical conduction between the left and right rails, and the insulating member needs to be replaced every few years. It is essential to remove the fixing bolt. However, in places where the joint bolt or nut interferes with the retainer or fixing bolt of the rail fastening device due to the rail advance, it may not be possible to re-attach the fixing bolt after replacing the insulating member. There were challenges.

なお、特許文献１のレール締結装置において採用されている、レール敷設方向と直交する方向に長いボルト挿通用の長穴を形成するという考え方を応用して、レール敷設方向と平行な方向に長い長穴を形成することで、レールのふく進によるボルト挿通穴同士の位置ずれを吸収することも考えられる。しかし、そのような単独の位置ずれ吸収構造では、レールのふく進により位置ずれを充分に吸収することができないことが分かった。
また、後述のレール締結装置のように、レールの下部フランジ部を押える押さえ具を、矩形状の板ばねで押圧する構造を有するものにおいては、板ばねが回転して継目ボルトの頭に接触してしまい、レールと枕木との間が電気的に導通状態になってしまうおそれがあるという課題があることが明らかになった。 In addition, by applying the concept of forming a long hole for bolt insertion that is long in a direction perpendicular to the rail laying direction, which is adopted in the rail fastening device of Patent Document 1, a long length in a direction parallel to the rail laying direction is applied. By forming the holes, it is conceivable to absorb the displacement between the bolt insertion holes due to the advance of the rail. However, it has been found that such a single positional deviation absorbing structure cannot sufficiently absorb the positional deviation due to the advance of the rail.
Further, in a device such as a rail fastening device described below, which has a structure in which a presser for pressing a lower flange portion of a rail is pressed by a rectangular plate spring, the plate spring rotates to contact the head of the joint bolt. It has been clarified that there is a problem that the rail and the sleeper may be electrically connected to each other.

本発明は上記のような課題に着目したなされたもので、その目的とするところは、レールのふく進による締結装置と鋼橋の橋桁のボルト挿通穴同士の位置ずれを充分に吸収することができる鋼橋直結軌道用レール締結装置を提供することにある。
本発明の他の目的は、押さえ具を押圧する板ばねが回転して継目ボルトの頭に接触してレールと枕木との間が電気的に導通状態になってしまうおそれのない鋼橋直結軌道用レール締結装置を提供することにある。 The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to sufficiently absorb a displacement between a bolt insertion hole of a fastening device and a bridge girder of a steel bridge due to bulging of a rail. It is an object of the present invention to provide a rail fastening device for a steel bridge directly connected track.
Another object of the present invention is to provide a rail directly connected to a steel bridge in which a leaf spring for pressing a retainer rotates and comes into contact with a head of a seam bolt to electrically connect a rail and a sleeper. The present invention provides a rail fastening device.

上記目的を達成するため、この発明は、
レールの左右の下部フランジを直接または継目板を介して下方へ押圧してレールを鋼橋の橋桁に固定するための一対の押さえ具と、鋼橋の橋桁に結合されて前記一対の押さえ具を保持する受け金具とを備えた鋼橋直結軌道用レール締結装置であって、
前記受け金具は、当該受け金具および前記橋桁を貫通するように配設される固定用ボルトが挿通される２以上のボルト挿通穴を有し、
前記押さえ具は、当該押さえ具を貫通し頭部が前記受け金具の係合部に係止されるように配設される締結用ボルトが挿通されるボルト挿通穴を有し、
前記受け金具および前記押さえ具のボルト挿通穴は、それぞれレール延設方向に長い長穴として形成されているように構成した。 To achieve the above object, the present invention provides
A pair of retainers for fixing the rail to the bridge girder of the steel bridge by pressing the lower right and left lower flanges of the rail directly or through a joint plate, and the pair of retainers coupled to the bridge girder of the steel bridge. A rail fastening device for a steel bridge direct-coupled track with a holding bracket for holding,
The receiving fitting has two or more bolt insertion holes through which fixing bolts arranged to penetrate the receiving fitting and the bridge girder are inserted,
The holding member has a bolt insertion hole through which a fastening bolt provided to penetrate the holding member and to be locked so that a head thereof is engaged with the engaging portion of the receiving member,
The bolt insertion holes of the receiving member and the holding member are each formed as a long hole extending in the rail extending direction.

上記した手段によれば、受け金具および押さえ具のボルト挿通穴はそれぞれレール延設方向に長い長穴として形成されているので、レール締結装置の取付け位置を、長穴の長径の範囲内でレール延設方向へ調節することができ、それによってレールのふく進による締結装置と鋼橋の橋桁のボルト挿通穴同士の位置ずれを充分に吸収することができる。また、レールのふく進で押さえ具と継目板固定用ナットとが干渉してしまい、押さえ具や他の部品の交換作業が困難になるのを回避することができる。   According to the above-described means, the bolt insertion holes of the receiving bracket and the holding member are each formed as a long hole extending in the rail extending direction, so that the mounting position of the rail fastening device can be set within the range of the long diameter of the long hole. It can be adjusted in the extension direction, and thereby the displacement between the bolt insertion holes of the fastening device and the bridge girder of the steel bridge due to the bulging of the rail can be sufficiently absorbed. In addition, it is possible to prevent the holding member and the joint plate fixing nut from interfering with each other due to the advance of the rail, thereby making it difficult to replace the holding member and other parts.

ここで、望ましくは、前記受け金具には、前記固定用ボルトが挿通されるボルト挿通穴が、その長径がレールと平行な方向を向くようにして３個以上形成され、
前記３個以上のボルト挿通穴のうち隣り合う２個のボルト挿通穴にそれぞれ固定用ボルトが挿通され、端部の雄ネジ部に固定用ナットが螺合されることで前記橋桁に固定されるように構成する。
かかる構成によれば、ボルト挿通穴が長穴として形成されている上、３個以上設けられ、そのうち隣接する２個を用いて固定する構成であるため、長穴の長径を超えてレール締結装置の取付け位置を調節することができ、それによってレールのふく進による締結装置と鋼橋の橋桁のボルト挿通穴同士のより大きな位置ずれを吸収し、押さえ具と継目板固定用ナットとの干渉を回避することができる。 Here, desirably, at least three bolt insertion holes into which the fixing bolts are inserted are formed in the receiving fitting so that the major axis thereof is oriented in a direction parallel to the rail,
Of the three or more bolt insertion holes, two adjacent bolt insertion holes are respectively inserted with fixing bolts, and fixing nuts are screwed into male screw portions at the ends to be fixed to the bridge girder. The configuration is as follows.
According to this configuration, the bolt insertion hole is formed as a long hole, and three or more bolt insertion holes are provided, and two or more adjacent bolts are used to fix the bolt insertion hole. The mounting position of the bridge can be adjusted, thereby absorbing a larger displacement between the bolt insertion hole of the fastening device and the bridge girder of the steel bridge due to the bulging of the rail, and preventing interference between the retainer and the nut for fixing the seam plate. Can be avoided.

さらに、望ましくは、前記押さえ具の上面の高さが前記継目板をレールに固定するためのボルトおよびナットの下端よりも低い位置になるように設定され、前記押さえ具の下端が前記レールの下部フランジを直接押圧して固定するように構成する。
かかる構成によれば、押さえ具の上面の高さが継目板固定用のボルトおよびナットの下端よりも低い位置になるように設定されるため、押さえ具と継目板固定用ナットとの干渉を回避することができる。また、この場合、レールのふく進がさらに進むと継目板固定用ナットとレール締結用のナットとが干渉するおそれが生じるが、レール締結用のナットに絶縁性キャップを被せることで、両者間が電気的導通状態になるのを回避することができる。 Further preferably, the height of the upper surface of the holding member is set to be lower than the lower ends of bolts and nuts for fixing the joint plate to the rail, and the lower end of the holding member is located at the lower portion of the rail. The flange is configured to be directly pressed and fixed.
According to this configuration, since the height of the upper surface of the holding member is set to be lower than the lower ends of the joint plate fixing bolts and nuts, interference between the holding member and the joint plate fixing nut is avoided. can do. Also, in this case, if the rail is further advanced, the joint plate fixing nut and the rail fastening nut may interfere with each other. An electrical conduction state can be avoided.

また、望ましくは、前記受け金具は、底面がサンドブラスト処理されているように構成する。
かかる構成によれば、ボルト挿通穴が長穴として形成されることで受け金具が回転したりずれたりし易くなったとしても、受け金具の底面の抵抗が増加して回転や横ずれを抑制することができ、それによってレールの締結状態が緩むのを防止することができる。 Desirably, the receiving fitting is configured such that the bottom surface is sandblasted.
According to this configuration, even if the bolt insertion hole is formed as a long hole, the receiving bracket is likely to rotate or shift, and the resistance of the bottom surface of the receiving bracket increases to suppress rotation and lateral displacement. This makes it possible to prevent the fastening state of the rail from being loosened.

また、望ましくは、前記押さえ具の上面と前記締結用ボルトに螺合される締結用ナットとの間に介挿される板バネを備え、
前記押さえ具の上面には、前記板バネの縁部に沿って設けられたリブもしくは凹部を形成する段差が設けられているように構成する。
かかる構成によれば、押さえ具を押圧する板ばねが回転して継目ボルトの頭に接触してレールと枕木との間が電気的に導通状態になってしまうのを防止することができる。 Preferably, a plate spring is interposed between an upper surface of the holding member and a fastening nut screwed into the fastening bolt,
The upper surface of the presser is provided with a step that forms a rib or a recess provided along an edge of the leaf spring.
According to this configuration, it is possible to prevent the leaf spring that presses the holding member from rotating and coming into contact with the head of the joint bolt to electrically connect the rail and the sleeper.

本発明によれば、レールのふく進による締結装置と鋼橋の橋桁のボルト挿通穴同士の位置ずれを充分に吸収することができる鋼橋直結軌道用レール締結装置を実現することができる。また、押さえ具を押圧する板ばねが回転して継目ボルトの頭に接触してレールと枕木との間が電気的に導通状態になってしまうおそれのない鋼橋直結軌道用レール締結装置を実現することができるという効果がある。   ADVANTAGE OF THE INVENTION According to this invention, the rail fastening device for steel bridge direct connection track | tracks which can fully absorb the positional shift between the fastening device by the rail advance and the bolt insertion hole of the bridge girder of a steel bridge can be realized. Also, a rail fastening device for a steel bridge directly connected track that does not cause the leaf spring that presses the retainer to rotate and contact the head of the joint bolt to electrically connect the rail and the sleeper. There is an effect that can be.

第１の実施形態に係る鋼橋直結軌道用レール締結装置の構成を示すもので、（Ａ）は平面図、（Ｂ）は一部断面正面図である。It is a figure which shows the structure of the rail fastening apparatus for steel bridge direct connection tracks which concerns on 1st Embodiment, (A) is a top view and (B) is a partial cross-section front view. 第１実施形態の鋼橋直結軌道用レール締結装置を構成するレール押さえ部材としての押さえ具の詳細を示すもので、（Ａ）は平面図、（Ｂ）は断面正面図である。It is a figure which shows the detail of the holding tool as a rail holding member which comprises the rail fastening device for steel bridge direct connection track | rails of 1st Embodiment, (A) is a top view, (B) is a sectional front view. 第２の実施形態に係る鋼橋直結軌道用レール締結装置の構成を示すもので、（Ａ）は平面図、（Ｂ）は一部断面正面図である。It is a figure which shows the structure of the rail fastening apparatus for steel bridge direct connection track | rails which concerns on 2nd Embodiment, (A) is a top view, (B) is a partial cross-section front view. 第３の実施形態に係る鋼橋直結軌道用レール締結装置の構成を示すもので、（Ａ）は平面図、（Ｂ）は一部断面正面図である。It is a figure which shows the structure of the rail fastening apparatus for steel bridge direct connection tracks which concerns on 3rd Embodiment, (A) is a top view and (B) is a partial cross-section front view. 第３実施形態に係る鋼橋直結軌道用レール締結装置を構成する押さえ具の詳細を示すもので、（Ａ）は平面図、（Ｂ）は正面断面図である。It is a figure which shows the detail of the holding tool which comprises the rail fastening apparatus for steel bridge direct connection tracks which concerns on 3rd Embodiment, (A) is a top view and (B) is a front sectional view.

以下、図面を参照して、本発明に係る鋼橋直結軌道用レール締結装置の実施形態について詳細に説明する。
（第１実施形態）
図１は第１の実施形態に係る鋼橋直結軌道用レール締結装置１００の構成を示すもので、（Ａ）は平面図、（Ｂ）は一部断面正面図で鋼橋の橋桁２００上に固定した状態を示している。また、図２はレール締結装置１００を構成するレール押さえ部材としての押さえ具の詳細を示すもので、（Ａ）は平面図、（Ｂ）は断面正面図である。 Hereinafter, an embodiment of a rail fastening device for a steel bridge direct connection track according to the present invention will be described in detail with reference to the drawings.
(1st Embodiment)
FIG. 1 shows a configuration of a rail fastening device 100 for a steel bridge direct-coupled track according to the first embodiment, where (A) is a plan view and (B) is a partial cross-sectional front view on a bridge girder 200 of the steel bridge. This shows a fixed state. FIGS. 2A and 2B show details of a holding tool as a rail holding member constituting the rail fastening device 100, wherein FIG. 2A is a plan view and FIG. 2B is a sectional front view.

本実施形態の鋼橋直結軌道用レール締結装置１００は、図１（Ｂ）に示すように、レールＲを挟んで一対の横圧受け金具１１Ａ，１１Ｂが橋桁２００上に載置され、それぞれ固定用ボルト１２Ａ，１２Ｂと固定用ナット１３Ａ，１３Ｂによって固定されている。符号を付していないが、レールＲの下面と橋桁２００上面との間には、軌道パッド、絶縁板、可変パッドが介挿されている。
一方、レールＲの両側には継目板２１Ａ，２１Ｂが接合され、これらを貫通するボルト２２とナット２３によって結合されている。上記固定用ボルト１２Ａ，１２Ｂと固定用ナット１３Ａ，１３Ｂは、図１（Ａ）に示すように、レールの延設方向に沿ってそれぞれ２組設けられており、橋桁２００上で回転しないように構成されている。 In the rail fastening device 100 for a steel bridge directly connected track of the present embodiment, as shown in FIG. 1B, a pair of lateral pressure receiving brackets 11A and 11B are placed on a bridge girder 200 with a rail R interposed therebetween, and are fixed respectively. Bolts 12A and 12B and fixing nuts 13A and 13B. Although not denoted by a reference numeral, a track pad, an insulating plate, and a variable pad are interposed between the lower surface of the rail R and the upper surface of the bridge girder 200.
On the other hand, joint plates 21A and 21B are joined to both sides of the rail R, and are connected by bolts 22 and nuts 23 penetrating these. As shown in FIG. 1A, two sets of the fixing bolts 12A and 12B and the fixing nuts 13A and 13B are provided along the direction in which the rail extends, so that they do not rotate on the bridge girder 200. It is configured.

また、図１（Ｂ）に示すように、横圧受け金具１１Ａ，１１Ｂの内側縁部には、上方へ向って突出するレールと平行な方向に長いショルダー部１１ａ，１１ｂがそれぞれ形成されている。そして、これらのショルダー部１１ａ，１１ｂを跨ぐようにして、一対の絶縁性を有する押さえ具１４Ａ，１４Ｂが載置され、鉛直方向上向きの締結用ボルト１５Ａ，１５Ｂと締結用ナット１６Ａ，１６Ｂによってそれぞれ横圧受け金具１１Ａ，１１Ｂに結合されている。
さらに、本実施形態では、継目板２１Ａ，２１Ｂの下部が外側に膨らむように形成されるとともに、横圧受け金具１１Ａ，１１Ｂは、断面がほぼコの字状をなし、下向きに設置されており、押さえ具１４Ａ，１４ＢのレールＲに近い側の端部の下面が継目板２１Ａ，２１Ｂの下部の膨らんでいる部位を下方へ押圧することでレールを橋桁に締結するように構成されている。 Further, as shown in FIG. 1 (B), shoulder portions 11a and 11b which are long in a direction parallel to the rail protruding upward are formed on the inner edges of the lateral pressure receiving fittings 11A and 11B, respectively. . Then, a pair of insulating retainers 14A, 14B are placed so as to straddle these shoulder portions 11a, 11b, and are respectively attached by vertically upward fastening bolts 15A, 15B and fastening nuts 16A, 16B. It is connected to the lateral pressure receiving fittings 11A and 11B.
Further, in the present embodiment, the lower portions of the joint plates 21A and 21B are formed so as to bulge outward, and the horizontal pressure receiving brackets 11A and 11B have a substantially U-shaped cross section and are installed downward. The lower surfaces of the ends of the holding members 14A, 14B on the side close to the rail R are configured to press downwardly the swelling portions below the seam plates 21A, 21B to fasten the rails to the bridge girders.

上記横圧受け金具１１Ａの外側縁部には、２個の固定用ボルト１２Ａが挿通される２個の長穴１２ａ，１２ｂが、レールの延設方向に沿ってレールと平行に形成されている。横圧受け金具１１Ｂも同様である。このように、固定用ボルト１２Ａ，１２Ｂが挿通される穴を長穴とすることで、横圧受け金具１１Ａ，１１Ｂを、長穴の長さ分だけ橋桁２００に対してレール延設方向にずらして設置することができ、それによって押さえ具１４Ａ，１４Ｂが継目板２１Ａ，２１Ｂをレール腹部に固定するためのボルト２２やナット２３と干渉しないようにすることができる。   Two long holes 12a and 12b into which two fixing bolts 12A are inserted are formed in the outer edge of the lateral pressure receiving bracket 11A in parallel with the rail along the extending direction of the rail. . The same applies to the lateral pressure receiving fitting 11B. In this way, by making the holes through which the fixing bolts 12A, 12B are inserted into elongated holes, the lateral pressure receiving brackets 11A, 11B are shifted in the rail extending direction with respect to the bridge girder 200 by the length of the elongated holes. The holding members 14A, 14B can be prevented from interfering with the bolts 22 and the nuts 23 for fixing the joint plates 21A, 21B to the rail abdomen.

さらに、横圧受け金具１１Ａ，１１Ｂのショルダー部１１ａ，１１ｂには、図２（Ａ）に示すように、側方視で逆Ｔ字形の切欠き１７ａ，１７ｂがそれぞれ形成され、この切欠き１７ａ，１７ｂに、頭部を下にした締結用ボルト１５Ａ，１５Ｂの頭部が係合され、上方へ突出する雄ネジ部が押さえ具１４Ａ，１４Ｂを貫通し、上端部に締結用ナット１６Ａ，１６Ｂが螺合されることで、上記押さえ具１４Ａ，１４Ｂがショルダー部１１ａ，１１ｂと一体に結合される。そして、押さえ具１４Ａ，１４Ｂの上面と締結用ナット１６Ａ，１６Ｂとの間に、上面視矩形状をなし中央が上方へ湾曲した皿状の板バネ１８Ａ，１８Ｂと２重スプリングワッシャ１９Ａ，１９Ｂが介挿されている。   Further, as shown in FIG. 2A, inverted T-shaped notches 17a and 17b are formed in the shoulder portions 11a and 11b of the lateral pressure receiving fittings 11A and 11B, respectively. , 17b are engaged with the heads of the fastening bolts 15A, 15B with their heads down, and the male screws protruding upward penetrate the holding members 14A, 14B, and the fastening nuts 16A, 16B are provided at the upper end. Are screwed together, the holding members 14A and 14B are integrally connected to the shoulder portions 11a and 11b. Then, between the upper surfaces of the holding members 14A, 14B and the fastening nuts 16A, 16B, plate-like plate springs 18A, 18B having a rectangular shape in a top view and having a center curved upward and double spring washers 19A, 19B are provided. It is interposed.

さらに、上記押さえ具１４Ａ，１４Ｂの上面には、図２に示すように、矩形状の板バネ１８Ａ，１８Ｂの周囲を囲むようにリブ１４ａ，１４ｂがそれぞれ形成されており、板バネ１８Ａ，１８Ｂはリブ１４ａ，１４ｂによってその内側に形成される凹部に係合するように配設されることで回転が阻止され、継目板２１Ａ，２１Ｂを固定するボルト２２の頭部やナット２３に接触してレールと枕木との間が電気的に導通状態になってしまうのを防止できるようになっている。   Further, as shown in FIG. 2, ribs 14a and 14b are formed on the upper surfaces of the holding members 14A and 14B so as to surround the rectangular plate springs 18A and 18B, respectively. The ribs 14a and 14b are arranged so as to be engaged with the concave portions formed inside thereof by the ribs 14a and 14b, so that rotation is prevented, and the ribs come into contact with the heads of the bolts 22 and the nuts 23 fixing the joint plates 21A and 21B. It is possible to prevent electrical conduction between the rail and the sleeper.

また、図２（Ａ）に示すように、押さえ具１４Ａ，１４Ｂには、締結用ボルト１５Ａ，１５Ｂが挿通される長穴４１ａ，４１ｂが、ほぼレールの延設方向であってレール側面に対して若干傾斜して形成されている。このように、締結用ボルト１５Ａ，１５Ｂが挿通される穴を長穴とすることで、横圧受け金具１１Ａ，１１Ｂの長穴１２ａ，１２ｂと相俟って、締結用ボルト１５Ａ，１５Ｂを、継目板をレール側部に固定するためのナット２３と干渉しない位置に取り付けることが容易となる。
つまり、押さえ具１４Ａ，１４Ｂに設けられる締結用ボルト１５Ａ，１５Ｂの挿通穴と横圧受け金具１１Ａ，１１Ｂに設けられる固定用ボルト１２Ａ，１２Ｂの挿通穴を、共に長穴とすることで、いずれか一方のみ長穴とする場合に比べて、レール延設方向への調整量が大きくなり、横圧受け金具１１Ａ，１１Ｂと継目板をレール側部に固定するためのナット２３との干渉を回避した取付けが可能となる。 As shown in FIG. 2 (A), the holding members 14A, 14B have elongated holes 41a, 41b into which the fastening bolts 15A, 15B are inserted. It is formed slightly inclined. As described above, by making the holes through which the fastening bolts 15A and 15B are inserted into elongated holes, the fastening bolts 15A and 15B can be combined with the elongated holes 12a and 12b of the lateral pressure receiving brackets 11A and 11B. It becomes easy to attach the joint plate to a position that does not interfere with the nut 23 for fixing the joint plate to the rail side portion.
That is, both the insertion holes of the fastening bolts 15A and 15B provided in the holding members 14A and 14B and the insertion holes of the fixing bolts 12A and 12B provided in the lateral pressure receiving brackets 11A and 11B are elongated holes. The amount of adjustment in the rail extension direction is larger than in the case where only one of the long holes is used, and interference between the lateral pressure receiving brackets 11A and 11B and the nut 23 for fixing the joint plate to the side of the rail is avoided. Mounting becomes possible.

また、長穴４１ａ，４１ｂがレール側面に対して若干傾斜して形成されていることによって、レールと継目板との間に寸法バラツキがあったとしても、継目板をレールに密接させた状態で固定することができる。
さらに、固定用ボルト１２Ａ，１２Ｂに螺合された固定用ナット１３Ａ，１３Ｂと横圧受け金具１１Ａ，１１Ｂの上面との間には、図１に示すように、長穴１２ａ，１２ｂを覆うカバープレート２０Ａ，２０Ｂが介挿されており、長穴１２ａ，１２ｂ内に水が入らないように工夫されており、長穴１２ａ，１２ｂ内に水が溜まってボルト１２Ａ，１２Ｂがさび付き易くなるのを防止している。 Further, since the elongated holes 41a and 41b are formed slightly inclined with respect to the side surfaces of the rail, even if there is a dimensional variation between the rail and the seam plate, the seam plate is kept in close contact with the rail. Can be fixed.
Further, between the fixing nuts 13A, 13B screwed to the fixing bolts 12A, 12B and the upper surfaces of the lateral pressure receiving brackets 11A, 11B, as shown in FIG. 1, a cover for covering the elongated holes 12a, 12b. The plates 20A and 20B are interposed, and water is prevented from entering the long holes 12a and 12b. Water accumulates in the long holes 12a and 12b, and the bolts 12A and 12B are easily rusted. Has been prevented.

（第２実施形態）
図３は第２の実施形態に係る鋼橋直結軌道用レール締結装置１００の構成を示すもので、（Ａ）は平面図、（Ｂ）は一部断面正面図である。
本実施形態の鋼橋直結軌道用レール締結装置１００は、図３（Ａ）に示すように、横圧受け金具１１Ａ，１１Ｂのレール延設方向の幅が第１実施形態のものよりも広く（約２倍）なるように形成され、横圧受け金具１１Ａの外側縁部には、４個の長穴１２ａ，１２ｂ，１２ｃ，１２ｄが、レールの延設方向に沿ってレールと平行に１列に並んで形成されている。なお、４個の長穴１２ａ〜１２ｄのうち２個を使用して固定用ボルト１２Ａ，１２Ｂが挿通され、上端の雄ネジ部に固定用ナット１３Ａ，１３Ｂが螺合されることによって橋桁２００に固定されている。横圧受け金具１１Ｂも同様である。 (2nd Embodiment)
3A and 3B show a configuration of a rail fastening device 100 for a steel bridge direct-coupled track according to the second embodiment, wherein FIG. 3A is a plan view and FIG.
As shown in FIG. 3A, in the rail fastening device 100 for a steel bridge directly connected track of the present embodiment, the width of the lateral pressure receiving brackets 11A and 11B in the rail extending direction is wider than that of the first embodiment ( About two times), and four long holes 12a, 12b, 12c, and 12d are provided on the outer edge of the lateral pressure receiving bracket 11A in a row in parallel with the rail along the extending direction of the rail. Are formed side by side. The fixing bolts 12A and 12B are inserted by using two of the four long holes 12a to 12d, and the fixing nuts 13A and 13B are screwed into the male screw portions on the upper end, so that the bridge girder 200 is formed. Fixed. The same applies to the lateral pressure receiving fitting 11B.

上記のように、横圧受け金具１１Ａ，１１Ｂを橋桁に固定するための固定用ボルト１２Ａ，１２Ｂが挿通される穴自体を長穴にした上で、さらに長穴の数を４個にしているため、固定用ボルト１２Ａ，１２Ｂを挿通する長穴を選択することで大きく３段階に位置を変化させ、さらに長穴内でボルトを移動させて微調整することができるため、第１の実施形態のものよりも大幅にレール締結装置の取付け位置をちょうせいすることができるため、レールがふく進を起こしたとしても、継目板を固定するボルトと押さえ具との干渉を回避することが出来る。   As described above, the holes through which the fixing bolts 12A and 12B for fixing the lateral pressure receiving brackets 11A and 11B to the bridge girder are made elongated holes, and the number of the elongated holes is made four. Therefore, by selecting the elongated holes through which the fixing bolts 12A and 12B are inserted, the position can be changed in three major steps, and the bolts can be moved within the elongated holes for fine adjustment. Since the mounting position of the rail fastening device can be greatly reduced as compared with the case, even if the rail advances, interference between the bolt for fixing the joint plate and the holding member can be avoided.

さらに、本実施形態では、固定用ボルト１２Ａ，１２Ｂが挿通される長穴を４個にしたことで、第１の実施形態のものに比べて、レールのふく進で横圧受け金具１１Ａ，１１Ｂがそれぞれ回転あるいは横滑りを起こし易くなるので、それを防止するため横圧受け金具１１Ａ，１１Ｂの下面すなわち橋桁２００上面との接合する面にサンドブラスト処理が施されており、これにより横圧受け金具１１Ａ，１１Ｂが回転や横滑りをしないように構成されている。なお、その他の構成は、第１の実施形態のものとほぼ同じであるので、説明は省略する。   Further, in the present embodiment, the number of the elongated holes into which the fixing bolts 12A and 12B are inserted is made four, so that the lateral pressure receiving brackets 11A and 11B can be moved by the rail bulging as compared with the first embodiment. Are liable to cause rotation or side slip, respectively, in order to prevent them, sandblasting is applied to the lower surfaces of the lateral pressure receiving brackets 11A and 11B, that is, the surface to be joined to the upper surface of the bridge girder 200. , 11B do not rotate or skid. The other configuration is almost the same as that of the first embodiment, and the description is omitted.

（第３実施形態）
図４は第３の実施形態に係る鋼橋直結軌道用レール締結装置１００の構成を示すもので、（Ａ）は平面図、（Ｂ）は一部断面正面図である。
本実施形態の鋼橋直結軌道用レール締結装置１００は、横圧受け金具１１Ａ，１１Ｂの上面の高さが第１実施形態における横圧受け金具１１Ａ，１１Ｂよりも低くなるように形成され、レールＲに近い側の端部の下面がレールＲの左右の下部フランジの上面に接触して、直接フランジを下方へ押圧することで橋桁２００との間に挟み込んでレールを締結するように構成されている。 (Third embodiment)
FIGS. 4A and 4B show a configuration of a rail fastening device 100 for a steel bridge direct-coupled track according to the third embodiment, wherein FIG. 4A is a plan view and FIG.
The rail fastening device 100 for a steel bridge direct connection track of the present embodiment is formed such that the height of the upper surface of the lateral pressure receiving brackets 11A and 11B is lower than the lateral pressure receiving brackets 11A and 11B in the first embodiment. The lower surface of the end near the R is in contact with the upper surfaces of the left and right lower flanges of the rail R, and the rail is fastened by directly pressing the flange downward to sandwich the bridge between the bridge girder 200 and the rail. I have.

上記のように、本実施形態では、横圧受け金具１１Ａ，１１Ｂの上面の高さが低くされているため、図４（Ｂ）に示されているように、押さえ具１４Ａ，１４Ｂと継目板をレール側部に固定するためのナット２３との干渉を回避することができる。
一方、押さえ具１４Ａ，１４Ｂとナット２３との干渉を回避できたとしても、ふく進がさらに進むと、締結用ボルト１５Ａ，１５Ｂに螺合している締結用ナット１６Ａ，１６Ｂとナット２３とが干渉する事態が生じる。そこで、本実施形態では、締結用ボルト１５Ａ，１５Ｂの先端と締結用ナット１６Ａ，１６Ｂを覆う絶縁材料からなるキャップ２４Ａ，２５Ｂを被着するように構成されている。これにより、締結用ナット１６Ａ，１６Ｂとナット２３との間が電気的に導通した状態になるのを防止することができる。 As described above, in the present embodiment, the heights of the upper surfaces of the lateral pressure receiving fittings 11A and 11B are reduced, and therefore, as shown in FIG. Can be prevented from interfering with the nut 23 for fixing the nut to the rail side portion.
On the other hand, even if the interference between the holding members 14A, 14B and the nut 23 can be avoided, when the bulging further proceeds, the fastening nuts 16A, 16B screwed to the fastening bolts 15A, 15B and the nut 23 become. Interference may occur. Therefore, in the present embodiment, caps 24A and 25B made of an insulating material that cover the tips of the fastening bolts 15A and 15B and the fastening nuts 16A and 16B are configured to be attached. Thus, it is possible to prevent the state in which the connection between the fastening nuts 16A and 16B and the nut 23 is electrically conducted.

以上、本発明を実施形態に基づいて説明したが、本発明は上述した実施形態に限定されるものでなく、本発明の趣旨を逸脱しない範囲で適宜変更可能である。例えば、上記第２実施形態では、固定用ボルト１２Ａ，１２Ｂが挿通される長穴を４個にしているが、３個あるいは５個以上であっても良い。また、第３実施形態のように押さえ具１４Ａ，１４Ｂによりレールの下部フランジに直接接触して押さえ込む構成のものにおいても横圧受け金具１１Ａ，１１Ｂに形成する長穴を３個以上形成するようにしても良い。   As described above, the present invention has been described based on the embodiments. However, the present invention is not limited to the above-described embodiments, and can be appropriately changed without departing from the gist of the present invention. For example, in the second embodiment, the number of the long holes into which the fixing bolts 12A and 12B are inserted is four, but may be three or five or more. Further, even in a configuration in which the holding members 14A and 14B directly contact and hold the lower flange of the rail as in the third embodiment, three or more long holes formed in the lateral pressure receiving brackets 11A and 11B are formed. May be.

さらに、前記実施形態では、押さえ具１４Ａ，１４Ｂの上面に板バネの回り止め用に矩形状をなすリブ１４ａ，１４ｂを形成しているが、回り止め用のリブ１４ａ，１４ｂは４辺のうち少なくとも１辺に形成されていれば良い。また、リブ１４ａ，１４ｂの代わりに凹部を形成する段差を設けるようにしても良い。
また、前記実施形態では、横圧受け金具１１Ａ，１１Ｂは、底面がサンドブラスト処理されていると説明したが、複数の溝を形成して横移動抵抗を増大させたものであっても良い。 Further, in the above-described embodiment, rectangular ribs 14a and 14b are formed on the upper surfaces of the holding members 14A and 14B to prevent the rotation of the leaf spring. However, the ribs 14a and 14b for preventing rotation are out of four sides. It suffices if it is formed on at least one side. Further, a step for forming a concave portion may be provided instead of the ribs 14a and 14b.
Further, in the above-described embodiment, the bottom surfaces of the lateral pressure receiving fittings 11A and 11B are described as being sandblasted, but a plurality of grooves may be formed to increase lateral movement resistance.

１１Ａ，１１Ｂ 横圧受け金具
１２ａ，１２ｂ，１２ｃ，１２ｄ 長穴
１２Ａ，１２Ｂ 固定用ボルト
１３Ａ，１３Ｂ 固定用ナット
１４Ａ，１４Ｂ 押さえ具
１４ａ，１４ｂ リブ
１５Ａ，１５Ｂ 締結用ボルト
１６Ａ，１６Ｂ 締結用ナット
２１Ａ，２１Ｂ 継目板
２２ 継目板固定用ボルト
２３ 継目板固定用ナット
２４Ａ，２４Ｂ 絶縁性キャップ
１００ レール締結装置
２００ 橋桁 11A, 11B Lateral pressure receiving brackets 12a, 12b, 12c, 12d Slotted holes 12A, 12B Fixing bolts 13A, 13B Fixing nuts 14A, 14B Holders 14a, 14b Ribs 15A, 15B Fastening bolts 16A, 16B Fastening nuts 21A , 21B Joint plate 22 Joint plate fixing bolt 23 Joint plate fixing nut 24A, 24B Insulating cap 100 Rail fastening device 200 Bridge girder

Claims (5)

レールの左右の下部フランジを直接または継目板を介して下方へ押圧してレールを鋼橋の橋桁に固定するための一対の押さえ具と、鋼橋の橋桁に結合されて前記一対の押さえ具を保持する受け金具とを備えた鋼橋直結軌道用レール締結装置であって、
前記受け金具は、当該受け金具および前記橋桁を貫通するように配設される固定用ボルトが挿通される２以上のボルト挿通穴を有し、
前記押さえ具は、当該押さえ具を貫通し頭部が前記受け金具の係合部に係止されるように配設される締結用ボルトが挿通されるボルト挿通穴を有し、
前記受け金具および前記押さえ具のボルト挿通穴は、それぞれレール延設方向に長い長穴として形成されていることを特徴とする鋼橋直結軌道用レール締結装置。 A pair of retainers for fixing the rail to the bridge girder of the steel bridge by pressing the lower right and left lower flanges of the rail directly or through a joint plate, and the pair of retainers coupled to the bridge girder of the steel bridge. A rail fastening device for a steel bridge direct-coupled track with a holding bracket for holding,
The receiving fitting has two or more bolt insertion holes through which fixing bolts arranged to penetrate the receiving fitting and the bridge girder are inserted,
The holding member has a bolt insertion hole through which a fastening bolt provided to penetrate the holding member and to be locked so that a head thereof is engaged with the engaging portion of the receiving member,
The rail fastening device for a steel bridge direct-coupled track, wherein the bolt insertion holes of the receiving fitting and the holding tool are each formed as a long hole extending in the rail extending direction. 前記受け金具には、前記固定用ボルトが挿通されるボルト挿通穴が、その長径がレールと平行な方向を向くようにして３個以上形成され、
前記３個以上のボルト挿通穴のうち隣り合う２個のボルト挿通穴にそれぞれ固定用ボルトが挿通され、端部の雄ネジ部に固定用ナットが螺合されることで前記橋桁に固定されるように構成されていることを特徴とする請求項１に記載の鋼橋直結軌道用レール締結装置。 In the receiving fitting, three or more bolt insertion holes into which the fixing bolts are inserted are formed such that the major axis faces in a direction parallel to the rail,
Of the three or more bolt insertion holes, two adjacent bolt insertion holes are respectively inserted with fixing bolts, and fixing nuts are screwed into male screw portions at the ends to be fixed to the bridge girder. The rail fastening device for a steel bridge directly connected track according to claim 1, wherein the rail fastening device is configured as follows. 前記押さえ具の上面の高さが前記継目板をレールに固定するためのボルトおよびナットの下端よりも低い位置になるように設定され、前記押さえ具の下端が前記レールの下部フランジを直接押圧して固定するように構成されていることを特徴とする請求項１又は２に記載の鋼橋直結軌道用レール締結装置。   The height of the upper surface of the retainer is set to be lower than the lower ends of bolts and nuts for fixing the joint plate to the rail, and the lower end of the retainer directly presses the lower flange of the rail. The rail fastening device for a steel bridge direct-coupled track according to claim 1, wherein the rail fastening device is configured to be fixed. 前記受け金具は、底面がサンドブラスト処理されていることを特徴とする請求項１〜３の何れかに記載の鋼橋直結軌道用レール締結装置。   The rail fastening device for a steel bridge direct connection track according to any one of claims 1 to 3, wherein a bottom surface of the receiving fitting is subjected to sandblasting. 前記押さえ具の上面と前記締結用ボルトに螺合される締結用ナットとの間に介挿される板バネを備え、
前記押さえ具の上面には、前記板バネの縁部に沿って設けられたリブもしくは凹部を形成する段差が設けられていることを特徴とする請求項１〜４の何れかに記載の鋼橋直結軌道用レール締結装置。 A plate spring inserted between an upper surface of the holding tool and a fastening nut screwed into the fastening bolt,
The steel bridge according to any one of claims 1 to 4, wherein a step forming a rib or a concave portion provided along an edge of the leaf spring is provided on an upper surface of the holding member. Rail fastening device for directly connected tracks.
JP2018129596A 2018-07-09 2018-07-09 Rail fastening device for rails directly connected to steel bridges Active JP7051623B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2018129596A JP7051623B2 (en) 2018-07-09 2018-07-09 Rail fastening device for rails directly connected to steel bridges

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2018129596A JP7051623B2 (en) 2018-07-09 2018-07-09 Rail fastening device for rails directly connected to steel bridges

Publications (2)

Publication Number Publication Date
JP2020007784A true JP2020007784A (en) 2020-01-16
JP7051623B2 JP7051623B2 (en) 2022-04-11

Family

ID=69151121

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2018129596A Active JP7051623B2 (en) 2018-07-09 2018-07-09 Rail fastening device for rails directly connected to steel bridges

Country Status (1)

Country Link
JP (1) JP7051623B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113047096A (en) * 2021-04-21 2021-06-29 石家庄铁道大学 Ballastless track assembly for longitudinal and transverse beam system steel bridge, construction device and process

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5598501U (en) * 1978-12-27 1980-07-09
JPS56138901U (en) * 1980-03-24 1981-10-21
JPS6070603U (en) * 1983-10-24 1985-05-18 東急建設株式会社 Reaction plate mounting device for magnetic attraction type running vehicles
JP2000265403A (en) * 1999-03-17 2000-09-26 East Japan Railway Co Insulating clip for railway rail
JP2003074002A (en) * 2001-08-31 2003-03-12 Railway Technical Res Inst Rail fastening device, and rail fastening method
JP2004162368A (en) * 2002-11-13 2004-06-10 Bando Chem Ind Ltd Rail elastic fastener
JP2006299624A (en) * 2005-04-20 2006-11-02 Sekisui Chem Co Ltd Fixing structure of tie-plate and repair method for sleeper
JP2016033286A (en) * 2014-07-31 2016-03-10 東日本旅客鉄道株式会社 Rail fastening structure

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5598501U (en) * 1978-12-27 1980-07-09
JPS56138901U (en) * 1980-03-24 1981-10-21
JPS6070603U (en) * 1983-10-24 1985-05-18 東急建設株式会社 Reaction plate mounting device for magnetic attraction type running vehicles
JP2000265403A (en) * 1999-03-17 2000-09-26 East Japan Railway Co Insulating clip for railway rail
JP2003074002A (en) * 2001-08-31 2003-03-12 Railway Technical Res Inst Rail fastening device, and rail fastening method
JP2004162368A (en) * 2002-11-13 2004-06-10 Bando Chem Ind Ltd Rail elastic fastener
JP2006299624A (en) * 2005-04-20 2006-11-02 Sekisui Chem Co Ltd Fixing structure of tie-plate and repair method for sleeper
JP2016033286A (en) * 2014-07-31 2016-03-10 東日本旅客鉄道株式会社 Rail fastening structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113047096A (en) * 2021-04-21 2021-06-29 石家庄铁道大学 Ballastless track assembly for longitudinal and transverse beam system steel bridge, construction device and process

Also Published As

Publication number Publication date
JP7051623B2 (en) 2022-04-11

Similar Documents

Publication Publication Date Title
JP5185136B2 (en) Rail fixing system
JP2011509361A (en) Rail fixing system and its support
CA2834013C (en) Rail support assembly with improved shoulder
JP2020007784A (en) Rail fastening device for steel bridge direct-coupled track
KR101672181B1 (en) Concrete sleeper- rail fixing device
JP6337014B2 (en) Railway rail fixing device
JP6204169B2 (en) Rail fastening device for track
US8864043B2 (en) Rail fastening system
JP2018104966A (en) Anti-derailment guard angle support apparatus
KR101653575B1 (en) Hydraulic cylinder fixing Apparatus for derailed train
JP7260418B2 (en) Rail fastener for slab track
EA027838B1 (en) Device for positioning and attachment of a rail on a crossmember
JP6552655B1 (en) Wheel guard device
JP5539277B2 (en) First-aid fastening device for vehicle track using ladder sleeper
RU173249U1 (en) DEVICE FOR FASTENING THE RAIL AND CONTRAIL ON CURVED SITES OF THE SMALL RADIUS OF RAILWAY AND METROWAYS
JP3349912B2 (en) Rail buckling prevention device
JP2011084860A (en) Wheel guard device for extensible/contractible joint
JP4980995B2 (en) Rail fastening structure and fastening method
JP2014031707A (en) Wheel guard device
JP2014034791A (en) Derailment prevention guard for ballastless track
JP6202668B2 (en) Wheel guard device for frame type slab track
JP2001049601A (en) Elastic rail fastening device
JP3164644U (en) Base rail mounting structure on folded plate roof
JP6823419B2 (en) Girder structure
KR100838680B1 (en) Turnout heel base plate fastening structure and method

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20210518

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20220317

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20220329

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20220330

R150 Certificate of patent or registration of utility model

Ref document number: 7051623

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150