JP5670665B2 - Track buckling prevention device - Google Patents

Description

本発明は、温度変化による伸縮作用によってレールに生じる軸圧力に対処し、該レールの座屈を防止するために適用する、軌道の座屈防止装置に関するものである。   The present invention relates to a track buckling prevention device which is applied to cope with a shaft pressure generated in a rail due to an expansion and contraction effect due to a temperature change and to prevent the rail from buckling.

レールは温度変化によって伸縮作用して軸圧力が生じるので、レールを締結した枕木を道床の構成材であるバラスト内に埋設固定しているが、前記軸圧力による座屈を防ぐために、該枕木を鉄材で囲い付けて、枕木に移動抵抗を付加させた構造のものが知られている（例えば、特許文献１）。   Since the rail expands and contracts due to changes in temperature and axial pressure is generated, the sleepers that fasten the rail are embedded and fixed in the ballast that is the component of the roadbed. In order to prevent buckling due to the axial pressure, the sleepers are The thing of the structure which enclosed with the iron material and added the movement resistance to the sleeper is known (for example, patent document 1).

実公昭４７−１１８４５号公報Japanese Utility Model Publication No. 47-11845

前記従来構造のものは、座屈防止材である鉄材を枕木に取り付ける際、枕木周辺を大きく掘り込んで取付けなければならず、また、取付け後に、掘り込むことによって緩んでしまった道床バラスト（砕石）をタイタンパ等の工具で突き固めする必要があり、取付け作業に大変な手間と時間を要している。   In the case of the conventional structure, when attaching an iron material, which is a buckling prevention material, to the sleepers, the periphery of the sleepers must be dug up greatly, and after installation, the roadbed ballast (crushed stone) that has been loosened by dug up ) Must be tamped with a tool such as a tie tamper, which requires a lot of labor and time for installation.

本発明は斯様な従来例の欠点に着目し、道床バラストの掘込みも簡単ですみ、従って、設置作業の省力化を比較的図れ、しかも、従来構造より効果的な座屈防止装置を提供することを目的として創案したものである。   The present invention pays attention to the disadvantages of the conventional example, and it is easy to dig the floor ballast. Therefore, it is possible to relatively reduce the labor of installation work and to provide a buckling prevention device that is more effective than the conventional structure. It was created for the purpose of doing.

レールに、該レールの底部を挟持するようにして取付けた座屈防止金具本体に、下端をバラスト内に打ち込み、しかも、前記レールを受支する枕木の並設方向に沿う板面を備えた座屈防止板の上端部を止着した構成としたものである。なお、防止金具本体にねじ孔を横設し、該ねじ孔に座屈防止板を通じて止着ボルトを螺合するようにすると、レールに予め取付けた防止金具本体に対して座屈防止板を簡単かつ確実に取付けられ、設置作業の尚一層の省力化を図ることができる。   A seat provided with a plate surface along a parallel arrangement direction of sleepers for driving the rails into the ballast, with the lower end driven into the ballast to the buckling prevention metal fitting body attached so as to sandwich the bottom of the rail. The upper end portion of the bending prevention plate is fixed. In addition, if a screw hole is installed horizontally in the prevention bracket body and a fastening bolt is screwed into the screw hole through a buckling prevention plate, the buckling prevention plate can be easily attached to the prevention bracket body previously attached to the rail. Moreover, it can be securely attached, and further labor saving of the installation work can be achieved.

本発明によれば、座屈が生じるレールに、座屈防止板を直接取付けたものであるから、枕木に間接的に取付けるものと較べ、より効果的な座屈防止降下を期待でき、設置する（取付ける）際の枕木周辺のバラスト掘込み作業と較べ、レール周辺のバラスト掘込み作業で足りるから、当該設置作業を簡便に行うことができ、また、座屈防止板は枕木の並設方向に沿う板面を備えて道床バラスト内に打ち込んだ構成を採るものであるから、大きな座屈抵抗を得られ、従って、座屈防止効果の優れた装置を提供できる。   According to the present invention, since a buckling prevention plate is directly attached to a rail where buckling occurs, a more effective buckling prevention drop can be expected and installed as compared with a case where it is indirectly attached to a sleeper. Compared to the ballast digging work around the sleepers during installation, the ballast digging work around the rails is sufficient, so the installation work can be done easily, and the buckling prevention plate Since it is configured to have a plate surface along which it is driven into the road bed ballast, it is possible to obtain a large buckling resistance, and thus to provide a device having an excellent buckling prevention effect.

側面図。Side view. 図1の平面図。FIG. 2 is a plan view of FIG. 座屈防止金具本体をレールに組付けた状態の側面図。The side view of the state which assembled | attached the buckling prevention metal fitting main body to the rail. 座屈防止板をレールに組付ける前の状態を示す一部欠截正面図。The partial missing front view which shows the state before attaching a buckling prevention board to a rail. 座屈防止板を案内金具を用いてレールに組付けた状態を示す一部欠截側面図。The partially broken side view which shows the state which assembled | attached the buckling prevention board to the rail using the guide metal fitting. 図５の一部欠截平面図。FIG. 6 is a partially cutaway plan view of FIG. 5. 案内金具の斜視図。The perspective view of a guide metal fitting.

図中、ｍは道床を構成するバラスト（砕石）ｂ上に所要間隔を置いて並べて設置した枕木で、該枕木ｍ，ｍ間にレールＲをわたすように敷設し、このレールＲの前記枕木ｍ，ｍ間の中間部分に、本発明に係る、レール座屈防止装置Ａを設置する。   In the figure, m is a sleeper arranged side by side on a ballast (crushed stone) b constituting the road bed at a required interval. The sleeper m of the rail R is laid so as to pass a rail R between the sleepers m and m. , M, the rail buckling prevention device A according to the present invention is installed.

レール座屈防止装置Ａは、前記枕木ｍに取付けた防止金具本体１と、該本体１に組付けた座屈防止板２とで構成する。   The rail buckling prevention apparatus A includes a prevention metal fitting body 1 attached to the sleeper m and a buckling prevention plate 2 assembled to the body 1.

防止金具本体１は、方形状の主体部片１ａと支持部片１ｂをＴ字状に互いに止着し、支持部片１ｂ下部側の片面１ｂ´´と、主体部片１ａの下面１ａ´´との間の両側に、三角形状の補強部片１ｃ，１ｃをわたして構成した枠体で成り、前記支持部片１ｂの前記下部側の片面１ｂ´´と上部側の片面１ｂ´の各両側に、ナット材３Ａ，３Ａをそれぞれ止着（熔接）して各片面１ｂ´，１ｂ´´に設けた透孔と連通するねじ孔３，３を設け、このねじ孔３側の前記支持部片１ｂの基部には断面略Ｌ字状の挟持部片４を、支持部片１ｂの板面に沿わせて立設し、前記主体部片１ａの先端部には一対のねじ孔５，５を設けて構成したものである。   The prevention metal fitting body 1 has a rectangular main body piece 1a and a support piece 1b fastened to each other in a T-shape, a lower surface 1b '' of the lower side of the support piece 1b, and a lower surface 1a '' of the main body piece 1a. The frame is composed of triangular reinforcing portions 1c, 1c on both sides of the support portion 1b. The lower side single side 1b "and the upper side single side 1b ' The nut members 3A and 3A are fixed (welded) to each other, and screw holes 3 and 3 communicating with the through holes provided on the respective one surfaces 1b ′ and 1b ″ are provided. A sandwiching piece 4 having a substantially L-shaped cross section is erected on the base of 1b along the plate surface of the support piece 1b, and a pair of screw holes 5, 5 are provided at the tip of the main body piece 1a. It is provided and configured.

このような構成の防止金具本体１は、レールＲの底部Ｒｃの、長手方向に沿う一端Ｒｃ´を、前記挟持部片４と主体部片１ａが成す係合溝６に係合するようにして、主体部片１ａの上面を、レールＲの底部Ｒｃにあてがい、やや横伏Ｌ字状の挟持片７の先端部を、レールＲの長手方向に沿う他端Ｒｃ´´上に載せ、該挟持片７に設けた透孔８を通じて締結ボルト９の先端を前記ねじ孔５に螺合締付けて、底部Ｒｃを挟持するようにしてレールＲに取付けたものである。   The prevention metal fitting body 1 having such a structure is configured such that one end Rc ′ of the bottom portion Rc of the rail R along the longitudinal direction is engaged with the engagement groove 6 formed by the sandwiching piece 4 and the main piece 1a. The upper surface of the main body piece 1a is applied to the bottom Rc of the rail R, and the tip of the slightly flat L-shaped holding piece 7 is placed on the other end Rc ″ along the longitudinal direction of the rail R, The tip of the fastening bolt 9 is screwed and tightened into the screw hole 5 through a through hole 8 provided in the piece 7 and attached to the rail R so as to sandwich the bottom portion Rc.

前記座屈防止板２は、縦長方形状の下部側の両隅部を面取り状にして、下端部を下端方向に次第に幅狭くした変形六角形の平板体の上部側両端に、前記防止金具本体１に設けた、ナット材３Ａで成る前記ねじ孔３位置に対応させて縦長長孔１０，１０を設け、前記枕木ｍの並設方向に沿う一方の片面２´には、一対の、長い補強リブ１１と、該長い補強リブ１１，１１間に配した一対の短い補強リブ１１´、１１´を接ぐようにして打圧用の肉厚部１２を設け、該肉厚部１２の中央に組付け穴１３を設け、これにレベル確認ブロック１４を係合するようにして構成したものである。   The buckling prevention plate 2 is formed by chamfering both corners on the lower side of the vertical rectangular shape, and at the both ends on the upper side of the deformed hexagonal flat plate whose lower end is gradually narrowed in the lower end direction. 1 is provided with vertically elongated holes 10 and 10 corresponding to the positions of the screw holes 3 made of the nut material 3A, and a pair of long reinforcements is provided on one side 2 'along the direction in which the sleepers m are arranged side by side. A thick portion 12 for striking pressure is provided so as to contact the rib 11 and a pair of short reinforcing ribs 11 ′, 11 ′ arranged between the long reinforcing ribs 11, 11, and assembled at the center of the thick portion 12. A hole 13 is provided, and a level confirmation block 14 is engaged with the hole 13.

このように構成した座屈防止板２は、前記肉厚部１２又は該肉厚部１２に組付けたレベル確認ブロック１４をハンマー等の工具で打圧して、下端をバラストｂ内に埋入させつつ、レールＲに止着した防止金具本体１の支持部片１ｂの、外側面である前記片面に沿わせて降下させ、本体１側のねじ孔３，３と防止板２側の縦長長孔１０が一致する位置まで降下させた段階で、各長孔１０を通じて該長孔１０に対応するねじ孔３に止着ボルト１５を螺合、締付けることにより、座屈防止板２は、その板面（片面）が枕木ｍ，ｍの並設方向に沿うようにして枕木ｍ、ｍ間のレールＲ部分に取付けられ、レールの座屈防止を機能するのである。   The buckling prevention plate 2 configured as described above is configured such that the thick portion 12 or the level confirmation block 14 assembled to the thick portion 12 is pressed with a tool such as a hammer so that the lower end is embedded in the ballast b. On the other hand, the support piece 1b of the main body 1 of the prevention metal fitting fixed to the rail R is lowered along the one surface which is the outer surface, and the elongated holes on the screw holes 3 and 3 on the main body 1 side and the prevention plate 2 side. When the bolts 10 are lowered to a position where they coincide with each other, the fastening bolts 15 are screwed and tightened into the screw holes 3 corresponding to the long holes 10 through the long holes 10, whereby the buckling prevention plate 2 is (One side) is attached to the rail R portion between the sleepers m and m so that the sleepers m and m are arranged side by side, and functions to prevent the buckling of the rails.

なお、実施例の座屈防止板２は、前記防止金具本体１の設置位置に着脱自在にしてレールＲに組付けた案内金具１６に案内されてバラストｂ内所定位置に打ち込まれ（このとき、レベル確認ブロック１４の上端とレール頭部との位置関係によって設定位置を確認し）、設定どおりに配置できるようにしてある。   In addition, the buckling prevention plate 2 of the embodiment is guided by a guide fitting 16 attached to the rail R so as to be detachable from the installation position of the prevention fitting main body 1 and driven into a predetermined position in the ballast b (at this time, The set position is confirmed by the positional relationship between the upper end of the level check block 14 and the rail head), and can be arranged as set.

案内金具１６は、上部片１６ａの下面両側に側部片１６ｂ，１６ｃを相対設した、下面開口の方形溝枠体の一方の前記側部片に、固着ねじ１９螺合用の一対のねじ孔１７，１７を並設し、一方の側部片１６ｂに相対する他方の側部片１６ｃの両側に、該側部片１６ｃの縦幅より長い、断面ややＬ字形の案内杆１６ｄ，１６ｄを取付けて（熔接して）、側部片１６ｃの縦幅内において存する案内溝１８，１８を相対設して構成したものである。   The guide fitting 16 has a pair of screw holes 17 for screwing a fixing screw 19 into one side piece of a rectangular groove frame having an opening on the lower surface, with side pieces 16b and 16c provided on both sides of the lower surface of the upper piece 16a. , 17 are arranged side by side, and guide rods 16d, 16d having a slightly L-shaped cross section that is longer than the vertical width of the side piece 16c are attached to both sides of the other side piece 16c opposite to the one side piece 16b. The guide grooves 18 and 18 existing in the longitudinal width of the side piece 16c are provided relative to each other (welded).

そして、案内金具１６は、レールＲに組付けた防止金具本体１の設置位置で側部片１６ｂ，１６ｃ間にレールＲの頭部Ｒａを係合するようにして該頭部Ｒａ上に上部片１６ａを載せるようにして、レールＲに組合わせ（この組合わせ作業は既設の防止金具本体１に対する案内金具１６位置を経験と勘で行うが、何等かの目印を付しておけばその作業性は増す）て、一方の側部片１６ｂに設けたねじ孔１７に固着ねじ１９を螺合して、その先端をレール腹部Ｒｂに圧接させることによりレールＲに固着する。   And the guide metal fitting 16 is an upper piece on the head Ra so that the head Ra of the rail R is engaged between the side pieces 16b, 16c at the installation position of the prevention metal fitting body 1 assembled to the rail R. 16a is mounted on the rail R so that the guide bracket 16 is positioned with respect to the existing prevention bracket body 1 with experience and intuition. Then, the fixing screw 19 is screwed into the screw hole 17 provided in the one side piece 16b, and the tip thereof is pressed against the rail abdomen Rb to be fixed to the rail R.

この状態で、案内金具１６の案内溝１８，１８にその上端開口端から座屈防止板２を係合し、該座屈防止板２を案内溝１８に沿って降下させ、前記の通り、適宜、工具で打圧して下端をバラストｂ内に埋入させると、座屈防止板２は、案内溝１８から下端開口端を通じて離脱し、本体１側のねじ孔３と防止板２側の縦長長孔１０が一致する位置まで降下させた段階で、各長孔１０を通じて該長孔１０に対応するねじ孔３に止着ボルト１５と螺合、締付けることにより座屈防止板２は、板面（片面）が枕木ｍの並設方向に沿うよう配せられ、すなわち、レールＲの長手方向に交差する方向（直交方向が理想であるが）に配せられる。そして、座屈防止板２の、この打込み操作後、固着ねじ１９を緩めてレールＲの頭部Ｒａに重なり合って車輌の通過に邪魔となる案内金具１６をレールＲより取り外す（取外し後、防止金具本体１と案内金具１６をレールＲに組付けるために形成した掘込み穴にバラストを充填して原道床バラスト状態にする）ことによりレールの座屈防止を期待したレール（軌道）状態を得るのである。   In this state, the buckling prevention plate 2 is engaged with the guide grooves 18 and 18 of the guide metal fitting 16 from the upper end opening end, and the buckling prevention plate 2 is lowered along the guide groove 18 as described above. When the lower end is embedded in the ballast b by hitting with a tool, the buckling prevention plate 2 is detached from the guide groove 18 through the lower end opening end, and the longitudinally long side of the screw hole 3 on the main body 1 side and the prevention plate 2 side. At the stage where the holes 10 are lowered to the matching position, the buckling prevention plate 2 is screwed into the screw holes 3 corresponding to the long holes 10 through the respective long holes 10 and tightened to tighten the buckling prevention plate 2 to the plate surface ( One side) is arranged along the direction in which the sleepers m are juxtaposed, that is, arranged in a direction intersecting the longitudinal direction of the rail R (although the orthogonal direction is ideal). Then, after this driving operation of the buckling prevention plate 2, the fixing screw 19 is loosened, and the guide fitting 16 that overlaps the head portion Ra of the rail R and obstructs the passage of the vehicle is removed from the rail R (after removal, the prevention fitting) By filling the dug hole formed to assemble the main body 1 and the guide fitting 16 with the rail R into a ballast state by filling the ballast state with the original road floor, a rail (track) state that is expected to prevent the buckling of the rail is obtained. is there.

なお、図中２３は補強ブロックである。   In the figure, reference numeral 23 denotes a reinforcing block.

１ 座屈防止金具本体
２ 座屈防止板
３ ねじ孔
１５ 止着ボルト
Ｒ レール
ｂ バラスト 1 Buckling prevention bracket body 2 Buckling prevention plate 3 Screw hole 15 Fastening bolt R Rail b Ballast

Claims (1)

レールに、該レールの底部を挟持するようにして取付けた座屈防止金具本体と、下端をバラスト内に打ち込み、しかも、前記レールを受支する枕木の並設方向に沿う板面を備えた座屈防止板および前記座屈防止金具本体に横設したねじ孔に前記座屈防止板を通じて螺合する止着ボルトとで成る、レールの座屈防止装置。 A seat with a buckling prevention metal fitting body attached to the rail so as to sandwich the bottom portion of the rail, a lower end driven into the ballast, and a plate surface along the parallel arrangement direction of the sleepers that support the rail A rail buckling prevention device comprising: a buckling prevention plate and a fastening bolt that is screwed through a screw hole laterally provided in the buckling prevention metal fitting body through the buckling prevention plate .

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