JP2017082400A - Railroad tie fastener - Google Patents

Railroad tie fastener Download PDF

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JP2017082400A
JP2017082400A JP2015208522A JP2015208522A JP2017082400A JP 2017082400 A JP2017082400 A JP 2017082400A JP 2015208522 A JP2015208522 A JP 2015208522A JP 2015208522 A JP2015208522 A JP 2015208522A JP 2017082400 A JP2017082400 A JP 2017082400A
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sleeper
hook
bridge girder
spring body
spring
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JP6588301B2 (en
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潤一 赤沼
Junichi Akanuma
潤一 赤沼
孝雄 熊倉
Takao Kumakura
孝雄 熊倉
俊之 小西
Toshiyuki Konishi
俊之 小西
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East Japan Railway Co
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East Japan Railway Co
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Abstract

PROBLEM TO BE SOLVED: To provide a railroad tie fastener of which a fastening parts is rarely loosened, and capable of fastening a bridge girder and a railroad tie even when a bracing is spanned over a plurality of railroad ties, with the bracing fitted thereon.SOLUTION: A railroad tie fastener is for fixing a railroad tie (110) on a bridge girder (120). The railroad tie fastener includes: a hook member (10) having a long part bent in an inverted U-shape, and a first hook part (12) and a second hook part (13) provided respectively on two tip parts of the long part; and a spring body (20). The bridge girder (120) and the railroad tie (110) are fastened, when the railroad tie (110) is installed to intersect with the bridge girder (120), by having the long part cross over the railroad tie (110), the first hook part (12) hooked on the bridge girder (120) below one side of the railroad tie, the second hook part (13) hooked on the bridge girder (120) below the other side of the railroad tie, and the spring body (20) energize to separate a top surface of the railroad tie (110) from the long part.SELECTED DRAWING: Figure 2

Description

本発明は、橋桁に枕木を締結するための枕木締結具に関する。   The present invention relates to a sleeper fastener for fastening a sleeper to a bridge girder.

鉄道用の橋梁においてはレールを施設するために枕木が橋桁に締結される。橋桁に枕木を締結するための従来の締結具としては、下部にフック部を有するＪ字状のフックボルトがある。枕木には上下に延びる貫通孔が設けられ、締結作業時、枕木の貫通孔に下からフックボルトが通され、フックボルトのフック部が橋桁に引っかかる状態で、フックボルトの上部にナットが螺合される。ナットが締め付けられることで、フック部と枕木との間に橋桁が挟み込まれて、橋桁と枕木とが締結される。
特許文献１には、枕木に貫通孔を設けずに枕木を橋桁に締結することのできる締結金具が提案されている。この締結金具は、鋼材をリング状に成型した連結枠と、連結枠に係合する上バネと下バネとを有する。リング状の連結枠はその中央の空間部を枕木が貫通するように枕木の一端から固定位置まで通され、下バネは枕木の下方で連結枠と橋桁とに係合し、上バネは枕木の上方で枕木と連結枠とに付勢力を与える。これらによって枕木が橋桁に締結される。 In railway bridges, sleepers are fastened to the bridge girders to provide rails. As a conventional fastener for fastening a sleeper to a bridge girder, there is a J-shaped hook bolt having a hook portion at a lower portion. The sleeper is provided with a through-hole that extends vertically, and when fastening, a hook bolt is passed from below through the sleeper's through-hole, and a nut is screwed onto the top of the hook bolt while the hook part of the hook bolt is caught by the bridge girder. Is done. By tightening the nut, the bridge girder is sandwiched between the hook portion and the sleeper, and the bridge girder and the sleeper are fastened.
Patent Literature 1 proposes a fastening bracket that can fasten a sleeper to a bridge girder without providing a through hole in the sleeper. This fastening metal fitting has a connecting frame formed of a steel material in a ring shape, and an upper spring and a lower spring that engage with the connecting frame. The ring-shaped connecting frame is passed from one end of the sleeper to the fixed position so that the sleeper passes through the central space of the center, the lower spring engages with the connecting frame and the bridge girder under the sleeper, and the upper spring is the sleeper. A biasing force is applied to the sleepers and the connecting frame at the top. With these, the sleepers are fastened to the bridge girder.

実開平０６−０２４００１号公報Japanese Utility Model Publication No. 06-024001

フックボルトを使用した枕木の締結方法では、列車通過時の振動によってナットが緩むことがある。ナットの緩みが放置されると、フックボルトからナットが外れて、フックボルトが落下してしまう恐れがある。このため、フックボルトを使用する場合、定期点検でナットの緩みがないか検査し、緩みかあった場合にナットの増し締めを行うメンテナンスが必要となる。
特許文献１の締結金具によれば、フックボルトと比較して締結部に緩みが発生しにくい。しかしながら、特許文献１の締結金具においては、締結作業時にリング状の連結枠を枕木の一端から固定位置まで通す必要がある。枕木の端部には、隣接する枕木との間隔を保持するため、複数の枕木に架け渡されるように継材が固定されることがある（図１および図２の継材１３０を参照）。継材があると連結枠を枕木の一端から固定位置まで通すことができない。このため、特許文献１の連結金具では、継材がある場合に、継材を一旦外してから枕木の締結を行わなければならないという課題がある。 In the method of fastening sleepers using hook bolts, the nut may be loosened due to vibration when passing through the train. If the nut is left loose, the nut may come off the hook bolt and the hook bolt may fall. For this reason, when hook bolts are used, it is necessary to perform a maintenance to inspect whether the nuts are loosened by periodic inspection, and to retighten the nuts if they are loosened.
According to the fastening metal fitting of patent document 1, it is hard to generate | occur | produce in a fastening part compared with a hook bolt. However, in the fastening metal fitting of patent document 1, it is necessary to let a ring-shaped connection frame pass from one end of a sleeper to a fixed position at the time of fastening work. In order to maintain the space | interval with an adjacent sleeper at the edge part of a sleeper, a joint material may be fixed so that it may be spanned over several sleepers (refer the joint material 130 of FIG. 1 and FIG. 2). If there is a joint material, the connecting frame cannot be passed from one end of the sleeper to the fixed position. For this reason, in the connection metal fitting of patent document 1, when there exists a joint material, there exists a subject that fastening of a sleeper must be performed after removing a joint material once.

本発明は、締結部の緩みが生じにくく、複数の枕木に架け渡される継材があっても継材を付けたまま橋桁と枕木とを締結することのできる枕木締結具を提供することを目的としている。   An object of the present invention is to provide a sleeper fastener that is capable of fastening a bridge girder and a sleeper while keeping the joint material even if there is a joint material that spans a plurality of sleepers and is less likely to loosen the fastening portion. It is said.

本発明は、上記目的を達成するため、
橋桁に枕木を固定するための枕木締結具であって、
逆Ｕ字状に曲がった長尺部と、前記長尺部の２つの先端にそれぞれ設けられた第１フック部および第２フック部とを有するフック部材と、
バネ体とを備え、
橋桁に交差するように設置された枕木に対して、前記長尺部が前記枕木を跨ぎ、前記第１フック部が前記枕木の片側の下方で前記橋桁に引っかかり、前記第２フック部が前記枕木のもう片側の下方で前記橋桁に引っかかり、前記バネ体が前記枕木の上面と前記長尺部とを引き離すように付勢して前記橋桁と前記枕木とを固定するように構成されていることを特徴としている。 In order to achieve the above object, the present invention
A sleeper fastener for fixing a sleeper to a bridge girder,
A hook member having a long portion bent in an inverted U shape, and a first hook portion and a second hook portion respectively provided at two ends of the long portion;
A spring body,
For the sleepers installed so as to cross the bridge girder, the long part straddles the sleeper, the first hook part is caught on the bridge girder below one side of the sleeper, and the second hook part is the sleeper. It is configured so that the bridge girder and the sleeper are fixed by being hooked on the bridge girder below the other side of the frame and urging the spring body to separate the upper surface of the sleeper and the long portion. It is a feature.

この構成によれば、バネ体の付勢力によりフック部材が橋桁と枕木とを挟み込んで両者を締結する。よって、フックボルトを用いる場合と比較して、締結部の緩みが生じにくく、定期点検の軽減化を図ることができる。さらに、フック部材は、逆Ｕ字状に曲がった長尺部が枕木を跨ぐように設置されるので、枕木に継材が固定されていても継材を外すことなく締結作業ができる。また、フック部材が枕木の下方に落ちにくい。
ここで、上記の枕木締結具は、前記バネ体の上部に固定されて前記長尺部が前記枕木の長手方向にずれるのを抑止する第１ストッパーを更に備えてもよい。
この構成によれば、枕木と橋梁とを固定したフック部材がバネ体から外れてしまうことが防止される。また、これにより定期点検の軽減化を図れる。 According to this configuration, the hook member sandwiches the bridge girder and the sleepers by the urging force of the spring body and fastens them together. Therefore, compared with the case where a hook bolt is used, the fastening portion is less likely to loosen, and the periodic inspection can be reduced. Furthermore, since the hook member is installed so that the long part bent in an inverted U shape straddles the sleepers, the fastening work can be performed without removing the joints even if the joint members are fixed to the sleepers. Further, the hook member is difficult to fall below the sleepers.
Here, the sleeper fastener described above may further include a first stopper that is fixed to an upper portion of the spring body and prevents the long portion from shifting in the longitudinal direction of the sleeper.
According to this structure, it is prevented that the hook member which fixed the sleeper and the bridge is detached from the spring body. This can also reduce regular inspections.

さらに、上記の枕木締結具は、
前記枕木の上面部に固定されて前記バネ体を受けるバネ受けを有し、
前記バネ受けには、前記枕木の側方で前記長尺部に当接して前記長尺部が前記枕木の長手方向にずれるのを抑止する第２ストッパーが設けられていてもよい。
この構成によれば、第１ストッパーと第２ストッパーとにより、バネ体の上部とバネ体の下方との複数の箇所でフック部材の位置ずれが防止される。よって、フック部材の固定角度が変わるような振動または力に対しても抗力を大きくできる。よって、このような振動または力にも対抗できる強固な固定が得られる。また、これらによって定期点検の軽減化も図れる。
さらに、前記バネ体、前記第１ストッパー、および前記バネ受けは、互いに嵌合により組み合わされ、互いに分離可能になっていてもよい。
この構成によれば、部品の嵩張りを低減でき、部品の搬送性を向上できる。 Furthermore, the above sleeper fasteners
A spring receiver that is fixed to the upper surface of the sleeper and receives the spring body;
The spring receiver may be provided with a second stopper that abuts against the long portion at a side of the sleeper and prevents the long portion from shifting in the longitudinal direction of the sleeper.
According to this configuration, the first stopper and the second stopper prevent the hook member from being displaced at a plurality of locations on the spring body and below the spring body. Therefore, the resistance can be increased even with respect to vibration or force that changes the fixing angle of the hook member. Therefore, a firm fixation capable of resisting such vibration or force is obtained. In addition, regular inspections can be reduced by these.
Furthermore, the spring body, the first stopper, and the spring receiver may be combined with each other by fitting and separable from each other.
According to this configuration, it is possible to reduce the bulk of the component and improve the transportability of the component.

本発明によれば、締結部の緩みが生じにくく、複数の枕木に架け渡される継材があっても継材を付けたまま橋桁と枕木とを締結することのできる枕木締結具を提供することができる。   According to the present invention, there is provided a sleeper fastener that is capable of fastening a bridge girder and a sleeper with a joint attached even when there is a joint that spans a plurality of sleepers and is less likely to loosen a fastening portion. Can do.

本発明の第１実施の形態の枕木締結具を用いた締結構造を示す側面図である。It is a side view which shows the fastening structure using the sleeper fastener of 1st Embodiment of this invention. 図１の締結構造を示す平面図である。It is a top view which shows the fastening structure of FIG. 図１の締結構造を示す一部断面の前面図である。It is a front view of the partial cross section which shows the fastening structure of FIG. バネ受けとバネ体とストッパー部材とを示す分離斜視図である。It is a separate perspective view which shows a spring receiver, a spring body, and a stopper member. 変形例のバネ体を適用した枕木締結具の締結構造を示す側面図である。It is a side view which shows the fastening structure of the sleeper fastener to which the spring body of a modification is applied. 図５の矢印Ａ−Ａ線断面図である。It is arrow AA sectional view taken on the line of FIG. 本発明の第２実施の形態の枕木締結具を用いた締結構造を示す側面図である。It is a side view which shows the fastening structure using the sleeper fastener of 2nd Embodiment of this invention. 図７の締結構造を示す平面図である。It is a top view which shows the fastening structure of FIG.

以下、本発明の各実施の形態について図面を参照して詳細に説明する。
（第１実施の形態）
図１は、本発明の第１実施の形態の枕木締結具を用いた締結構造を示す側面図である。図２は、図１の締結構造を示す平面図である。図３は、図１の締結構造を示す一部断面の前面図である。図４は、バネ受けとバネ体とストッパー部材とを示す分離斜視図である。
本発明の第１実施の形態の枕木締結具は、図１〜図３に示すように、鉄道用の橋梁において、レール１００を施設するために枕木１１０と橋桁１２０とを締結するものである。枕木１１０は橋桁１２０に交差するように設置され、枕木１１０の端寄りには枕木１１０の間隔を維持するための継材１３０が固定されている。継材１３０は、隣接する複数の枕木１１０に架け渡されて固定されている。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
(First embodiment)
FIG. 1 is a side view showing a fastening structure using the sleeper fastener according to the first embodiment of the present invention. FIG. 2 is a plan view showing the fastening structure of FIG. FIG. 3 is a partially sectional front view showing the fastening structure of FIG. 1. FIG. 4 is an exploded perspective view showing the spring receiver, the spring body, and the stopper member.
As shown in FIGS. 1 to 3, the sleeper fastener according to the first embodiment of the present invention fastens a sleeper 110 and a bridge girder 120 to provide a rail 100 in a railway bridge. The sleepers 110 are installed so as to cross the bridge girder 120, and a joint member 130 for maintaining the interval between the sleepers 110 is fixed near the ends of the sleepers 110. The joint material 130 is stretched over a plurality of adjacent sleepers 110 and fixed.

第１実施の形態の枕木締結具は、図１〜図４に示すように、フック部材１０と、バネ体２０と、バネ受け３０と、ストッパー部材４０と、高さ調整板５０とを備えている。
フック部材１０は、鋼材からなり、逆Ｕ字状に曲がった長尺部と、長尺部の２つの先端部にそれぞれ設けられた第１フック部１２と第２フック部１３とを有する。逆Ｕ字状の長尺部は、図３に示すように枕木１１０を跨いで枕木１１０の上面および左右の側面にそれぞれ沿って延びる形状を有している。枕木１１０の左右の側面に沿って延びる長尺部の２本の脚部は先端が橋桁１２０に届く長さを有している。
第１フック部１２は、図１に示すように、長尺部の一方の先端部に設けられ、カギ状に曲がった形状を有する。第２フック部１３は、長尺部の他方の先端部に設けられ、カギ状に曲がった形状を有する。第１フック部１２および第２フック部１３は、枕木１１０の長手方向のうち、共に橋桁１２０のある方向に曲がった形状を有している。 As shown in FIGS. 1 to 4, the sleeper fastener according to the first embodiment includes a hook member 10, a spring body 20, a spring receiver 30, a stopper member 40, and a height adjustment plate 50. Yes.
The hook member 10 is made of a steel material, and has a long portion bent in an inverted U shape, and a first hook portion 12 and a second hook portion 13 provided at two tip portions of the long portion, respectively. As shown in FIG. 3, the inverted U-shaped long portion has a shape extending along the upper surface and the left and right side surfaces of the sleeper 110 across the sleeper 110. The two legs of the long portion extending along the left and right side surfaces of the sleeper 110 have a length that allows the tip to reach the bridge girder 120.
As shown in FIG. 1, the first hook portion 12 is provided at one end portion of the long portion and has a shape bent in a key shape. The 2nd hook part 13 is provided in the other front-end | tip part of a long part, and has the shape bent in the key shape. The 1st hook part 12 and the 2nd hook part 13 have the shape bent in the direction with the bridge girder 120 among the longitudinal directions of the sleeper 110, respectively.

バネ体２０は、例えばＵ字バネであり、枕木１１０の上面とフック部材１０との間に介在し、フック部材１０を枕木１１０の上面から離す方向に付勢する。
バネ体２０には、ボルト等によりバネを縮める方向に変位させるためのボルト挿通部２１と、ストッパー部材４０を嵌合するための嵌合穴２２と、バネ受け３０に嵌合するための凸部２３とが設けられている（図４を参照）。
ストッパー部材４０は、フック部材１０が枕木１１０の長手方向にずれないように係止する部材である。ストッパー部材４０は、上部にフック部材１０の長尺部を係止する溝部４１が形成され、下部にバネ体２０の嵌合穴２２に嵌合する凸部４２が設けられている（図４を参照）。ストッパー部材４０は、バネ体２０の上部に固定される。
なお、ストッパー部材４０の凸部４２の高さを、バネ体２０の上面部の厚みより大きくし、凸部４２の嵌合穴２２を突き抜ける部分に横穴を設けて、凸部４２に抜け防止用のピンを差し込めるように構成してもよい。 The spring body 20 is, for example, a U-shaped spring and is interposed between the upper surface of the sleeper 110 and the hook member 10 and biases the hook member 10 in a direction away from the upper surface of the sleeper 110.
The spring body 20 has a bolt insertion portion 21 for displacing the spring in a direction to contract the spring by a bolt, a fitting hole 22 for fitting the stopper member 40, and a convex portion for fitting the spring receiver 30. 23 (see FIG. 4).
The stopper member 40 is a member that locks the hook member 10 so as not to be displaced in the longitudinal direction of the sleeper 110. The stopper member 40 has a groove portion 41 for locking the long portion of the hook member 10 at the upper portion, and a convex portion 42 for fitting into the fitting hole 22 of the spring body 20 at the lower portion (see FIG. 4). reference). The stopper member 40 is fixed to the upper part of the spring body 20.
In addition, the height of the convex part 42 of the stopper member 40 is made larger than the thickness of the upper surface part of the spring body 20, and a horizontal hole is provided in a part that penetrates the fitting hole 22 of the convex part 42 to prevent the convex part 42 from coming off. You may comprise so that the pin of this can be inserted.

バネ受け３０は、枕木１１０の上面に固定され、バネ体２０の一端を受ける部材である。バネ受け３０には、枕木１１０の上面に固定される板部分に、固定釘３３を挿通する挿通孔３４と、バネ体２０の凸部２３と嵌合する嵌合穴３５と、バネ体２０を縮める際に利用されるボルト穴３１とが設けられている。また、バネ受け３０には、枕木１１０の側方に張り出した部分に、フック部材１０に当接してフック部材１０が枕木１１０の長手方向に変位するのを防止するストッパー３２が設けられている。なお、ストッパー３２は、枕木１１０の長手方向の両側からフック部材１０に当接してフック部材１０を係止する構造としているが、枕木１１０の長手方向の片側のみからフック部材１０に当接する構造としてもよい。例えば、第１フック部１２および第２フック部１３が橋桁１２０から外れる方向に位置ずれする可能性があり、逆方向に位置ずれする可能性がほぼ無いのであれば、可能性のある位置ずれが防止されるように片側にのみストッパー３２を設けてもよい。
高さ調整板５０は、枕木１１０の厚みの公差、或いは、橋桁１２０の厚みの公差に合わせて、フック部材１０とバネ体２０との高さ方向の位置を調整する板である。 The spring receiver 30 is a member that is fixed to the upper surface of the sleeper 110 and receives one end of the spring body 20. In the spring receiver 30, a plate portion fixed to the upper surface of the sleeper 110 is provided with an insertion hole 34 for inserting the fixing nail 33, a fitting hole 35 for fitting with the convex portion 23 of the spring body 20, and the spring body 20. Bolt holes 31 are provided to be used when shrinking. Further, the spring receiver 30 is provided with a stopper 32 at a portion protruding to the side of the sleeper 110 so as to contact the hook member 10 and prevent the hook member 10 from being displaced in the longitudinal direction of the sleeper 110. The stopper 32 is configured to abut against the hook member 10 from both sides in the longitudinal direction of the sleeper 110 to lock the hook member 10. However, the stopper 32 is configured to abut against the hook member 10 from only one longitudinal side of the sleeper 110. Also good. For example, if there is a possibility that the first hook portion 12 and the second hook portion 13 are displaced in a direction away from the bridge girder 120 and there is almost no possibility of displacement in the opposite direction, a possible displacement is possible. The stopper 32 may be provided only on one side so as to be prevented.
The height adjustment plate 50 is a plate that adjusts the position in the height direction of the hook member 10 and the spring body 20 in accordance with the tolerance of the thickness of the sleeper 110 or the tolerance of the thickness of the bridge girder 120.

＜締結方法＞
続いて、上記構成の枕木締結具を用いた枕木１１０の締結方法を説明する。
枕木１１０は、予め橋桁１２０に交差するように載置されているものとする。また、継材１３０が、隣接する複数の枕木１１０に架け渡されるように、各枕木１１０の端寄りに固定されているものとする。
締結作業時、作業員は、枕木１１０の所定位置にバネ受け３０、バネ体２０、およびストッパー部材４０を組み付ける。このとき、バネ受け３０の嵌合穴３５にはバネ体２０の凸部２３が嵌合し、バネ体２０の嵌合穴２２にはストッパー部材４０の凸部４２が嵌合する。また、作業員は、必要があれば、バネ受け３０と枕木１１０との間に高さ調整板５０を配置する。
次に作業員は、ボルトをバネ体２０のボルト挿通部２１に通して、ボルト穴３１に螺合させる。そして、ボルトが締められることで、バネ体２０が圧縮される。 <Fastening method>
Then, the fastening method of the sleeper 110 using the sleeper fastener of the said structure is demonstrated.
The sleepers 110 are assumed to be placed so as to cross the bridge girder 120 in advance. In addition, it is assumed that the joint material 130 is fixed near the end of each sleeper 110 so as to be bridged over a plurality of adjacent sleepers 110.
During the fastening operation, the worker assembles the spring receiver 30, the spring body 20, and the stopper member 40 at a predetermined position of the sleeper 110. At this time, the projection 23 of the spring body 20 is fitted into the fitting hole 35 of the spring receiver 30, and the projection 42 of the stopper member 40 is fitted into the fitting hole 22 of the spring body 20. Further, if necessary, the worker arranges the height adjusting plate 50 between the spring receiver 30 and the sleepers 110.
Next, the worker passes the bolt through the bolt insertion part 21 of the spring body 20 and screws it into the bolt hole 31. Then, the spring body 20 is compressed by tightening the bolt.

続いて作業員は、フック部材１０を、枕木１１０の上方から枕木１１０を跨ぐように設置する。このとき、フック部材１０の長尺部は、ストッパー部材４０の溝部４１（図４）とバネ受け３０のストッパー３２とに係止された状態とする。また、フック部材１０の第１フック部１２および第２フック部１３は橋桁１２０に引っかかった状態とする。
このようにフック部材１０をセットしたら、作業員は、バネ体２０を縮めていたボルトを緩めて外す。これにより、バネ体２０の付勢力がフック部材１０に伝わり、フック部材１０が枕木１１０と橋桁１２０とを挟み込んで、枕木１１０と橋桁１２０とが締結される。また作業員は、ボルトを緩めて外した後またはその前に、固定釘３３を打ち付けてバネ受け３０を枕木１１０に固定する。これらによって締結作業が完了する。 Subsequently, the worker installs the hook member 10 so as to straddle the sleeper 110 from above the sleeper 110. At this time, the long portion of the hook member 10 is locked to the groove portion 41 (FIG. 4) of the stopper member 40 and the stopper 32 of the spring receiver 30. In addition, the first hook portion 12 and the second hook portion 13 of the hook member 10 are in a state of being caught by the bridge girder 120.
When the hook member 10 is set in this way, the worker loosens and removes the bolt that has contracted the spring body 20. Thereby, the urging force of the spring body 20 is transmitted to the hook member 10, the hook member 10 sandwiches the sleeper 110 and the bridge girder 120, and the sleeper 110 and the bridge girder 120 are fastened. In addition, after the operator loosens and removes the bolt, or before that, the operator hits the fixing nail 33 to fix the spring receiver 30 to the sleeper 110. These complete the fastening operation.

（変形例）
図５は、変形例のバネ体を適用した枕木締結具の締結構造を示す側面図である。図６は、図５の矢印Ａ−Ａ線断面図である。
図５および図６に示すように、本発明に係るバネ体としては、Ｕ字バネに制限されず、バネ機構２０Ａなど、様々な構造のバネを採用することができる。図５および図６のバネ機構２０Ａは、複数の皿バネ２０２と、上下にスライド可能な上ハウジング２０１と下ハウジング２０３とを備えている。複数の皿バネ２０２は、上ハウジング２０１と下ハウジング２０３の内部に収容され、上ハウジング２０１と下ハウジング２０３とを押圧したときに離間させる方向へ付勢力を及ぼす。バネ機構２０Ａは、図２の平面図に示したバネ体２０のように、枕木１１０の横方向（橋桁１２０の長手方向）に２つ並列するように設けられている。
また、上ハウジング２０１には、フック部材１０を係止するストッパー部材４０Ａが一体化されている。ストッパー部材４０Ａは、図４のストッパー部材４０と同様の構成であり、溝部４１Ａによってフック部材１０の長尺部を係止する。なお、バネ機構２０Ａとストッパー部材４０Ａとは別体に構成し、互いに嵌合により組み合わさる構成としてもよい。 (Modification)
FIG. 5 is a side view showing a fastening structure of a sleeper fastener to which a spring body according to a modification is applied. 6 is a cross-sectional view taken along the line AA in FIG.
As shown in FIGS. 5 and 6, the spring body according to the present invention is not limited to the U-shaped spring, and springs of various structures such as the spring mechanism 20 </ b> A can be employed. The spring mechanism 20A shown in FIGS. 5 and 6 includes a plurality of disc springs 202, and an upper housing 201 and a lower housing 203 that can slide up and down. The plurality of disc springs 202 are accommodated inside the upper housing 201 and the lower housing 203, and exert an urging force in a direction in which the upper housing 201 and the lower housing 203 are separated when pressed. Two spring mechanisms 20A are provided in parallel in the lateral direction of the sleeper 110 (longitudinal direction of the bridge beam 120), like the spring body 20 shown in the plan view of FIG.
Further, the upper housing 201 is integrated with a stopper member 40 </ b> A for locking the hook member 10. The stopper member 40A has the same configuration as the stopper member 40 of FIG. 4, and the long portion of the hook member 10 is locked by the groove portion 41A. Note that the spring mechanism 20A and the stopper member 40A may be configured separately and combined with each other by fitting.

変形例のバネ機構２０Ａを採用する場合、締結作業時にバネ機構２０Ａを縮める構造として、バネ機構２０Ａを上方から平行に押し付けることのできる構造を採用するとよい。このような構造としては、バネ受け３０に複数のボルト穴３１Ａ、３１Ａ（図５を参照）を設け、これらに螺合させた複数のボルトの間を治具で結び、この治具がバネ機構２０Ａを押し付ける構造を採用できる。
このようなバネ機構２０Ａを用いても同様にフック部材１０により枕木１１０を橋桁１２０に固定することができる。 When the spring mechanism 20A according to the modified example is employed, a structure capable of pressing the spring mechanism 20A in parallel from above may be employed as a structure for contracting the spring mechanism 20A during fastening work. As such a structure, a plurality of bolt holes 31A, 31A (see FIG. 5) are provided in the spring receiver 30, and a plurality of bolts screwed into these are connected by a jig, and this jig is a spring mechanism. A structure for pressing 20A can be adopted.
Even if such a spring mechanism 20A is used, the sleeper 110 can be similarly fixed to the bridge girder 120 by the hook member 10.

以上のように、第１実施の形態の枕木締結具によれば、バネ体２０、２０Ａの付勢力によりフック部材１０が橋桁１２０と枕木１１０とを挟み込んで両者を締結する。よって、フックボルトを用いる場合と比較して、締結部の緩みが生じにくく、それ故、定期点検の軽減化を図ることができる。さらに、フック部材１０は、逆Ｕ字状に曲がった長尺部が枕木１１０を跨ぐように設置されるので、枕木１１０に継材１３０が固定されていても継材１３０を外すことなく締結作業を行うことができる。また、フック部材１０が枕木１１０の下方に落下しにくい。   As described above, according to the sleeper fastener of the first embodiment, the hook member 10 sandwiches the bridge beam 120 and the sleeper 110 and fastens them together by the urging force of the spring bodies 20 and 20A. Therefore, compared with the case where a hook bolt is used, the fastening portion is less likely to be loosened, and therefore regular inspection can be reduced. Further, since the hook member 10 is installed so that the long portion bent in an inverted U shape straddles the sleeper 110, even if the joint member 130 is fixed to the sleeper 110, the fastening operation is not performed. It can be performed. Further, the hook member 10 is unlikely to fall below the sleepers 110.

（第２実施の形態）
図７は、本発明の第２実施の形態に係る枕木締結具を用いた締結構造の側面図を示す。図８は、この締結構造の平面図を示す。
第２実施の形態の枕木締結具は、各部品の組み付け後に各部品が離散することを防止する機構を備えたところが、第１実施の形態の枕木締結具と主に異なる。第２実施の形態において第１実施の形態と同様の構成要素については、同一符号を付して詳細な説明を省略する。
特に制限されないが、図７および図８においては、橋桁１２０のフランジ上にはリベットＲを用いて補強板が定着され、枕木１１０と橋桁１２０との間にはリベットＲを避けるための枕木台座１１１が設けられる。 (Second Embodiment)
FIG. 7: shows the side view of the fastening structure using the sleeper fastener which concerns on 2nd Embodiment of this invention. FIG. 8 shows a plan view of this fastening structure.
The sleeper fastener according to the second embodiment is mainly different from the sleeper fastener according to the first embodiment, except that the sleeper fastener according to the second embodiment includes a mechanism that prevents the parts from being separated after the parts are assembled. In the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.
Although not particularly limited, in FIGS. 7 and 8, a reinforcing plate is fixed on the flange of the bridge girder 120 using a rivet R, and a sleeper pedestal 111 for avoiding the rivet R between the sleeper 110 and the bridge girder 120. Is provided.

第２実施の形態の枕木締結具には、第１実施の形態と異なる構成要素として、先ず、バネ体２０の上方でフック部材１０の位置ズレを抑止するストッパー６０が設けられている。第２実施の形態のストッパー６０は、枕木１１０の長手方向におけるフック部材１０の位置ズレを抑止するだけでなく、フック部材１０の上方への変位を抑止する機能を有している。具体的には、ストッパー６０は、フック部材１０の枕木１１０を跨ぐ部分を下方から受ける下部材６０ａと、上方から受ける上部材６０ｂとを有する。上部材６０ｂと下部材６０ａとはボルト等の固定具６１により互いに結合される。下部材６０ａおよび上部材６０ｂは、フック部材１０の枕木１１０を跨ぐ部分に沿うように形成された溝をそれぞれ有し、下部材６０ａの溝と上部材６０ｂの溝との間にフック部材１０の一部が嵌るように係止される。このような溝として、例えば、溝に沿って延びる軸線を中心としてフック部材１０が搖動可能なようにフック部１０を係止する大きさおよび形状の溝を採用してもよい。
このようなストッパー６０によれば、仮にフック部材１０の橋桁１２０への引っかかりが外れて、フック部材１０に上向きの反発力が発生した場合でも、フック部材１０がストッパー６０から飛び外れてしまうことを防止できる。 The sleeper fastener according to the second embodiment is provided with a stopper 60 that suppresses the displacement of the hook member 10 above the spring body 20 as a component different from the first embodiment. The stopper 60 according to the second embodiment has a function of not only preventing displacement of the hook member 10 in the longitudinal direction of the sleeper 110 but also inhibiting upward displacement of the hook member 10. Specifically, the stopper 60 includes a lower member 60a that receives a portion of the hook member 10 that straddles the sleepers 110 from below, and an upper member 60b that receives from above. The upper member 60b and the lower member 60a are coupled to each other by a fixture 61 such as a bolt. The lower member 60a and the upper member 60b each have a groove formed along a portion of the hook member 10 that straddles the sleeper 110, and the hook member 10 has a groove between the groove of the lower member 60a and the groove of the upper member 60b. It is locked so that a part fits. As such a groove, for example, a groove having a size and a shape for locking the hook portion 10 so that the hook member 10 can swing around an axis extending along the groove may be employed.
According to such a stopper 60, even when the hook member 10 is not caught on the bridge girder 120 and an upward repulsive force is generated on the hook member 10, the hook member 10 may be disengaged from the stopper 60. Can be prevented.

第２実施の形態の枕木締結具には、さらに、バネ体２０を縮める方向に変位させたり、元に戻したりするボルト６２を、取外し不要とするだめのボルト受け６３が設けられている。ボルト受け６３は、バネ体２０のボルト挿通部２１の下方に配置されて、バネ受け３０に溶接等により接合される。ボルト受け６３におけるボルト挿通部２１の下方の部位には、バネ体２０を縮めるのに十分な長さを有するネジ穴が設けられ、ボルト６４がナット６４を挟んで螺合される。
このようなボルト受け６３によれば、ボルト６２をネジ穴に進入する方向に回転させることで、ボルト６２の頭部がバネ体２０のボルト挿通孔２１に係止され、バネ体２０の上部を引き下げる方向に押圧し、これによりバネ体２０を圧縮させる。この状態で、フック部材１０をセットできる。フック部材１０をセットした後、ボルト６２をネジ穴から退出する方向に回転させることで、ボルト６２によるバネ体２０の圧縮が解除されて、バネ体２０の付勢力がフック部材１０に伝わる。ここで、ナット６４を締めてボルト６２をボルト受け６３に定着しておくことができる。これによりボルト６２を付けたままとすることができる。また、このようにボルト６２を定着させておくことで、仮にフック部材１０の橋桁１２０への引っかかりが外れて、フック部材１０によるバネ体２０の圧縮が解除された場合でも、ボルト６２がバネ体２０のボルト挿通孔２１に係止して、バネ体２０の大きな変位を抑止することで、バネ体２０の反発力が大きく開放されてしまうことを防止できる。 The sleeper fastener according to the second embodiment is further provided with a dead bolt receiver 63 that makes it unnecessary to remove the bolt 62 for displacing or returning the spring body 20 in the contracting direction. The bolt receiver 63 is disposed below the bolt insertion portion 21 of the spring body 20 and joined to the spring receiver 30 by welding or the like. A screw hole having a length sufficient to contract the spring body 20 is provided in a portion of the bolt receiver 63 below the bolt insertion portion 21, and the bolt 64 is screwed with a nut 64 interposed therebetween.
According to such a bolt receiver 63, by rotating the bolt 62 in a direction to enter the screw hole, the head of the bolt 62 is locked to the bolt insertion hole 21 of the spring body 20, and the upper portion of the spring body 20 is The spring body 20 is compressed by pressing in the pulling-down direction. In this state, the hook member 10 can be set. After the hook member 10 is set, the bolt 62 is rotated in a direction to withdraw from the screw hole, whereby the compression of the spring body 20 by the bolt 62 is released, and the urging force of the spring body 20 is transmitted to the hook member 10. Here, the nuts 64 can be tightened to fix the bolts 62 to the bolt receivers 63. Thereby, the bolt 62 can be kept attached. In addition, by fixing the bolt 62 in this way, even if the hook member 10 is not caught on the bridge girder 120 and the compression of the spring body 20 by the hook member 10 is released, the bolt 62 is fixed to the spring body. It is possible to prevent the repulsive force of the spring body 20 from being largely released by engaging with the 20 bolt insertion holes 21 to suppress a large displacement of the spring body 20.

第２実施の形態の枕木締結具には、さらに、バネ体２０とストッパー６０との係合が解かれないようにする構成が設けられている。バネ体２０とストッパー６０とを係合する構成としては、第１実施の形態の嵌合穴２２と凸部４２（図４を参照）と同様に、バネ体２０の上部に嵌合穴を、ストッパー６０の底に凸部を設け、これらを嵌合させる構成を採用できる。凸部としては、横断面が矩形となる形状としてもよいし、円柱状としてもよい。そして、これらの係合が解かれないようにする構成としては、嵌合穴を通過した凸部の先端に止め輪Ｃ或いは抜け防止ピンなどを係合する構造を採用することができる。   The sleeper fastener of the second embodiment is further provided with a configuration that prevents the spring body 20 and the stopper 60 from being disengaged. As a configuration for engaging the spring body 20 and the stopper 60, a fitting hole is formed on the upper part of the spring body 20, similarly to the fitting hole 22 and the convex portion 42 (see FIG. 4) of the first embodiment. A configuration in which a convex portion is provided on the bottom of the stopper 60 and these are fitted can be employed. As a convex part, it is good also as a shape whose cross section becomes a rectangle, and good also as a column shape. And as a structure which prevents these engagements from being released, the structure which engages the retaining ring C or the removal prevention pin etc. at the front-end | tip of the convex part which passed the fitting hole is employable.

同様に、第２実施の形態の枕木締結具には、バネ体２０とバネ受け３０との係合が解かれないようにする構成が設けられている。バネ体２０とバネ受け３０とを係合する構成としては、第１実施の形態の嵌合穴３５と凸部２３（図４を参照）とは逆に、バネ体２０の下部に嵌合穴を、バネ受け３０の上面に凸部を設け、これらを嵌合させる構成を採用できる。凸部としては、横断面が矩形となる形状としてもよいし、円柱状としてもよい。そして、この係合が解かれないようにする構成としては、嵌合穴を通過した凸部の先端に止め輪Ｃ或いは抜け防止ピンなどを係合する構造を採用することができる。   Similarly, the sleeper fastener of the second embodiment is provided with a configuration that prevents the spring body 20 and the spring receiver 30 from being disengaged. As a configuration for engaging the spring body 20 and the spring receiver 30, the fitting hole 35 and the projection 23 (see FIG. 4) of the first embodiment are opposite to the fitting hole in the lower part of the spring body 20. The structure which provides a convex part in the upper surface of the spring receiver 30, and fits these can be employ | adopted. As a convex part, it is good also as a shape whose cross section becomes a rectangle, and good also as a column shape. In order to prevent the engagement from being released, it is possible to employ a structure in which a retaining ring C or a removal prevention pin is engaged with the tip of the convex portion that has passed through the fitting hole.

以上のように、第２実施の形態の枕木締結具によれば、仮にフック部材１０の橋桁１２０への引っかかりが外れてしまった場合でも、バネ体２０の反発力が大きく開放されることが抑止され、さらにフック部材１０、バネ体２０、ストッパー６０の係合が維持されるので、枕木締結具の各部品が飛び外れてしまうことを防止できる。このような効果が、第１実施の形態の作用効果に加えて奏される。
さらに、第２実施の形態の枕木締結具では、バネ受け３０に設けられる第２ストッパーとして、枕木１１０の長手方向の片側からのみフック部材１０に当接するストッパー３２Ａを採用している。ストッパー３２Ａは、枕木１１０と橋桁１１２との締結時にフック部材１０が配置される箇所の近傍で、フック部材１０より枕木１１０の端に近い方に設けられている。このストッパー３２Ａにより、列車から枕木１１０に伝わる横方向の力に対してフック部材１０および枕木１１０の抵抗力を増すことができる。 As described above, according to the sleeper fastener of the second embodiment, even if the hook member 10 is not caught on the bridge girder 120, the spring body 20 is prevented from being largely repelled. In addition, since the engagement of the hook member 10, the spring body 20, and the stopper 60 is maintained, it is possible to prevent the parts of the sleeper fastener from jumping out. Such an effect is exhibited in addition to the operational effects of the first embodiment.
Furthermore, in the sleeper fastener of the second embodiment, a stopper 32 </ b> A that contacts the hook member 10 only from one side in the longitudinal direction of the sleeper 110 is employed as the second stopper provided in the spring receiver 30. The stopper 32 </ b> A is provided near the end of the sleeper 110 than the hook member 10 in the vicinity of the place where the hook member 10 is disposed when the sleeper 110 and the bridge girder 112 are fastened. By this stopper 32A, the resistance force of the hook member 10 and the sleeper 110 can be increased with respect to the lateral force transmitted from the train to the sleeper 110.

以上、本発明の各実施の形態について説明したが、本発明は上記の実施の形態に限られるものではない。例えば、フック部材１０の第１脚部と第２脚部との間隔を、枕木１１０の横幅（図８の紙面上下方向の幅）よりも余分に大きく構成してもよい。ここでは、フック部材１０が枕木１１０を跨ぐようにセットされたときに、フック部材１０のうち枕木１１０の片側で上方から下方へ渡される部位を第１脚部、枕木１１０のもう片側で上方から下方へ渡される部位を第２脚部と呼んでいる。このように構成することで、フック部材１０を枕木１１０にセットする際、枕木１１０に対するフック部材１０の固定位置を横方向（図８の紙面上下方向の幅）に変化させて調整することが可能となる。このように横方向に固定位置を調整できることで、フック部材１０の第１フック部１２と第２フック部１３とがリベットｒに届く長さを有していても、第１フック部１２と第２フック部１３とがリベットｒと干渉しないように固定位置を調整することができる。実施の形態で示した細部は、発明の趣旨を逸脱しない範囲で適宜変更可能である。   As mentioned above, although each embodiment of this invention was described, this invention is not limited to said embodiment. For example, the interval between the first leg portion and the second leg portion of the hook member 10 may be configured to be larger than the lateral width of the sleeper 110 (the width in the vertical direction on the paper in FIG. 8). Here, when the hook member 10 is set so as to straddle the sleeper 110, the part of the hook member 10 that is passed from the upper side to the lower side on one side of the sleeper 110 is the first leg part, and the other side of the sleeper 110 is viewed from the upper side. The part handed down is called the second leg. With this configuration, when the hook member 10 is set on the sleeper 110, the fixing position of the hook member 10 with respect to the sleeper 110 can be adjusted by changing it in the horizontal direction (the width in the vertical direction in FIG. 8). It becomes. Since the fixing position can be adjusted in the lateral direction in this way, even if the first hook portion 12 and the second hook portion 13 of the hook member 10 have a length that can reach the rivet r, The fixing position can be adjusted so that the two hook portions 13 do not interfere with the rivet r. Details shown in the embodiments can be changed as appropriate without departing from the spirit of the invention.

１０ フック部材
１２ 第２フック部
１３ 第１フック部
２０ バネ体
２０Ａ バネ機構
３０ バネ受け
３２、３２Ａ ストッパー（第２ストッパー）
４０ ストッパー部材（第１ストッパー）
５０ 高さ調整板
６０ ストッパー（第２ストッパー）
６０ａ 下部材
６０ｂ 上部材
６２ ボルト
６３ ボルト受け
Ｃ 止め輪
１００ レール
１１０ 枕木
１２０ 橋桁
１３０ 継材 DESCRIPTION OF SYMBOLS 10 Hook member 12 2nd hook part 13 1st hook part 20 Spring body 20A Spring mechanism 30 Spring support 32, 32A Stopper (2nd stopper)
40 Stopper member (first stopper)
50 Height adjustment plate 60 Stopper (second stopper)
60a Lower member 60b Upper member 62 Bolt 63 Bolt receiver C Retaining ring 100 Rail 110 Sleeper 120 Bridge girder 130 Joint material

Claims (4)

橋桁に枕木を固定するための枕木締結具であって、
逆Ｕ字状に曲がった長尺部と、前記長尺部の２つの先端にそれぞれ設けられた第１フック部および第２フック部とを有するフック部材と、
バネ体とを備え、
橋桁に交差するように設置された枕木に対して、前記長尺部が前記枕木を跨ぎ、前記第１フック部が前記枕木の片側の下方で前記橋桁に引っかかり、前記第２フック部が前記枕木のもう片側の下方で前記橋桁に引っかかり、前記バネ体が前記枕木の上面と前記長尺部とを引き離すように付勢して前記橋桁と前記枕木とを固定するように構成されていることを特徴とする枕木締結具。 A sleeper fastener for fixing a sleeper to a bridge girder,
A hook member having a long portion bent in an inverted U shape, and a first hook portion and a second hook portion respectively provided at two ends of the long portion;
A spring body,
For the sleepers installed so as to cross the bridge girder, the long part straddles the sleeper, the first hook part is caught on the bridge girder below one side of the sleeper, and the second hook part is the sleeper. It is configured so that the bridge girder and the sleeper are fixed by being hooked on the bridge girder below the other side of the frame and urging the spring body to separate the upper surface of the sleeper and the long portion. Features sleeper fasteners. 前記バネ体の上部に固定されて前記長尺部が前記枕木の長手方向にずれるのを抑止する第１ストッパーを更に備えることを特徴とする請求項１記載の枕木締結具。   The sleeper fastener according to claim 1, further comprising a first stopper that is fixed to an upper portion of the spring body and prevents the long portion from shifting in a longitudinal direction of the sleeper. 前記枕木の上面部に固定されて前記バネ体を受けるバネ受けを有し、
前記バネ受けには、前記枕木の側方で前記長尺部に当接して前記長尺部が前記枕木の長手方向にずれるのを抑止する第２ストッパーが設けられていることを特徴とする請求項２記載の枕木締結具。 A spring receiver that is fixed to the upper surface of the sleeper and receives the spring body;
The spring receiver is provided with a second stopper that abuts against the long portion at a side of the sleeper and prevents the long portion from shifting in the longitudinal direction of the sleeper. Item 5. A sleeper fastener according to item 2. 前記バネ体、前記第１ストッパー、および前記バネ受けは、互いに嵌合により組み合わされ、互いに分離可能になっていることを特徴とする請求項３記載の枕木締結具。   The sleeper fastener according to claim 3, wherein the spring body, the first stopper, and the spring receiver are combined with each other by fitting and separable from each other.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11384491B2 (en) 2018-10-12 2022-07-12 Norfolk Southern Corporation One-piece bridge tie restraining clip

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4949312A (en) * 1972-09-19 1974-05-13
JPH0516813U (en) * 1991-08-21 1993-03-02 積水化学工業株式会社 Sleeper fixing metal fittings
JPH0624001U (en) * 1992-08-31 1994-03-29 株式会社ミツテック Fasteners for track girders and sleepers
JPH06257111A (en) * 1992-08-27 1994-09-13 East Japan Railway Co Bridge sleeper fastening device of screw-less type
JPH1082407A (en) * 1996-09-05 1998-03-31 Sadao Abe Bridge sleeper hook bolt lock
US20150053783A1 (en) * 2013-08-21 2015-02-26 Lewis Bolt & Nut Company Bridge tie fastener system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4949312A (en) * 1972-09-19 1974-05-13
JPH0516813U (en) * 1991-08-21 1993-03-02 積水化学工業株式会社 Sleeper fixing metal fittings
JPH06257111A (en) * 1992-08-27 1994-09-13 East Japan Railway Co Bridge sleeper fastening device of screw-less type
JPH0624001U (en) * 1992-08-31 1994-03-29 株式会社ミツテック Fasteners for track girders and sleepers
JPH1082407A (en) * 1996-09-05 1998-03-31 Sadao Abe Bridge sleeper hook bolt lock
US20150053783A1 (en) * 2013-08-21 2015-02-26 Lewis Bolt & Nut Company Bridge tie fastener system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11384491B2 (en) 2018-10-12 2022-07-12 Norfolk Southern Corporation One-piece bridge tie restraining clip

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