JP5410151B2 - Sleeper with embedding material, sleeper embedding material, and method for manufacturing sleeper with embedding material - Google Patents

Sleeper with embedding material, sleeper embedding material, and method for manufacturing sleeper with embedding material Download PDF

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JP5410151B2
JP5410151B2 JP2009115423A JP2009115423A JP5410151B2 JP 5410151 B2 JP5410151 B2 JP 5410151B2 JP 2009115423 A JP2009115423 A JP 2009115423A JP 2009115423 A JP2009115423 A JP 2009115423A JP 5410151 B2 JP5410151 B2 JP 5410151B2
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sleeper
embedding material
cap member
sleepers
manufacturing
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JP2010265592A (en
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雅樹 関
康人 渡邊
浩成 村松
祥信 曽田
伊藤　　隆
修一 小沼
崇吉 北原
祐輔 神吉
修 古澤
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Central Japan Railway Co
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Description

本発明は、本線レールや脱線防止装置(ガード)をＰＣマクラギに締結具(ボルト)によって取り付けるための埋込材(インサート)が埋設された埋込材付きマクラギ、マクラギ用埋込材および埋込材付きマクラギの製造方法に関し、主として脱線防止ガードを取り付けるための埋込材が埋設され、埋込材の引抜き強度が大きく、かつマクラギの製造に際してマクラギ製造型枠内に埋込材をワンタッチでセットすることができる。 The present invention relates to a sleeper with an embedding material in which an embedding material (insert) for attaching a main rail and a derailment prevention device (guard) to a PC sleeper with a fastener (bolt) is embedded, a sleeper embedding material, and an embedding material With regard to the method for manufacturing sleepers with lumber, the embedding material for attaching the derailment prevention guard is mainly embedded, the pulling strength of the embedding material is large, and the embedding material is set in the sleeper manufacturing formwork with one touch when manufacturing the sleeper can do.

一般に、鉄道レールの曲線区間(カーブ)やレールが交差する分岐部分では、走行中の車両は遠心力によって脱線するおそれがある。また、踏切などでは踏切内の落下物などで脱線するおそれがある。さらに、直線区間においても地震時に脱線するおそれがある。   In general, a traveling vehicle may be derailed by centrifugal force at a curved section (curve) of a railroad rail or a branch portion where the rails intersect. In addition, there is a risk of derailment due to a fallen object or the like in the railroad crossing. Furthermore, there is a risk of derailment in a straight section during an earthquake.

このため、特に脱線転覆により重大事故を引起すような場所には、車両の脱線を防止するため、または脱線しても大事故に至らないように、例えば、図１１（ａ），（ｂ）に図示するように本線レール１０の内側(または外側)にこれと平行に脱線防止装置(脱線防止ガード)１１が敷設されている。   For this reason, in order to prevent a derailment of the vehicle or to prevent a major accident even if the derailment occurs, particularly in a place where a serious accident is caused by the derailment overturning, for example, FIGS. 11 (a) and 11 (b). As shown in the figure, a derailment prevention device (derailment prevention guard) 11 is laid in parallel to the inside (or outside) of the main rail 10.

脱線防止ガード１１には一般に補助レールやＬ型鋼が用いられ、本線レール１０から数センチ〜数十センチ離れた位置に敷設され、ＰＣマクラギ１２に埋設された埋込材(インサート)１３に締結ボルト１４によって固定されている。   An auxiliary rail or L-shaped steel is generally used for the derailment prevention guard 11, which is laid at a position several centimeters to several tens of centimeters away from the main rail 10, and is fastened to an embedded material (insert) 13 embedded in the PC sleeper 12. 14 is fixed.

特開２００４−３２４２４５号公報JP 2004-324245 A 特開２００４−３２４２８７号公報JP 2004-324287 A

しかし、上記した埋込材１３は、従来、マクラギ１２の上端面までその全長がねじ孔になっている割には、性能上要求される引抜き強度を必ずしも満足するものではなかった。   However, the above-described embedding material 13 does not necessarily satisfy the pulling strength required for performance, although the entire length of the embedding material 13 is a screw hole up to the upper end surface of the sleeper 12.

また、締結ボルト１４を最後まで締め付けるのに時間がかかり、脱線防止装置の敷設が面倒であった。   Moreover, it took time to tighten the fastening bolt 14 to the end, and it was troublesome to install the derailment prevention device.

さらに、マクラギを製造する際、埋込材１３はマクラギ製造型枠の底部に仮付けされるが、後から打設するコンクリートによって動いたりしないようにセットするのが面倒であった。   Furthermore, when the sleeper is manufactured, the embedding material 13 is temporarily attached to the bottom of the sleeper manufacturing formwork, but it is troublesome to set it so that it does not move by the concrete to be placed later.

本発明は、以上の課題を解決するためになされたもので、埋込材の引抜き強度が大きく、かつマクラギの製造に際して埋込材をマクラギ製造型枠内にワンタッチでセットできるようにした埋込材付きマクラギ、マクラギ用埋込材および埋込材付きマクラギの製造方法を提供することを目的とするものである。 The present invention has been made to solve the above-described problems. The embedding material has a high pull-out strength and can be set in a sleeper manufacturing form with a single touch when manufacturing sleepers. It is an object of the present invention to provide a sleeper with a material, an embedded material for sleepers, and a method for producing a sleeper with embedded materials.

請求項１記載の埋込材付きマクラギは、マクラギ本体と当該マクラギ本体に埋設された埋込材と当該埋込材の上端部に取り付けられたキャップ部材とからなる埋込材付きマクラギにおいて、前記埋込材は締結ボルトが貫通する空洞部とその下方に前記空洞部と連通し、前記締結ボルトが螺合されるねじ孔部を備え、前記キャップ部材は前記埋込材の空洞部の上端部を塞ぐ上蓋部と把持片を備え、かつ前記埋込材の上端部に被着することにより取り付けられ、前記上蓋部は前記把持片を引張ることにより把持片と共に除去できるように形成されていることを特徴とするものである。 Filler material with sleepers according to claim 1, wherein, in the filler material with sleepers comprising a cap member attached to the upper end portion of the filler material embedded in the sleeper body and the sleepers body and the implant member, the The embedding material includes a hollow portion through which the fastening bolt passes, and a screw hole portion that communicates with the hollow portion below the fastening bolt and into which the fastening bolt is screwed , and the cap member has an upper end portion of the hollow portion of the embedding material An upper lid portion and a gripping piece that are attached to the upper portion of the embedding material, and the upper lid portion is formed so that it can be removed together with the gripping piece by pulling the gripping piece . It is characterized by.

本発明は、特に埋込材の引抜き強度が大きく、本線レールや脱線防止ガードをマクラギに強固に固定できるようにしたものである。   In the present invention, the pulling strength of the embedded material is particularly large, and the main rail and the derailment prevention guard can be firmly fixed to the sleeper.

空洞部とねじ孔部の深さは特に限定されるものではないが、標準的なＰＣマクラギの断面寸法(高さ)等を勘案して決定することができ、およそ、空洞部とねじ孔部の深さは、それぞれ５０ｍｍ程度、１３０ｍｍ程度あれば、既製のＰＣマクラギの断面寸法内で性能上要求される引抜き強度を満足させることができる。   The depth of the cavity and the screw hole is not particularly limited, but can be determined in consideration of the cross-sectional dimension (height) of a standard PC sleeper. If the depth of each is about 50 mm and about 130 mm, respectively, the drawing strength required in terms of performance can be satisfied within the cross-sectional dimension of the ready-made PC sleeper.

埋込材は、鋳造によって空洞部とねじ孔部を一体に形成することができ、さらに鋼管あるいは太径鉄筋や異形棒鋼に穿孔加工とねじ加工を行うことにより形成することができる。また、素材にはＳＳ４９０の鋼材やＳＤ３４５の鉄筋を利用することができる。   The embedding material can integrally form the cavity and the screw hole by casting, and can be formed by drilling and threading a steel pipe, a large-diameter reinforcing bar, or a deformed bar. Also, SS490 steel and SD345 rebar can be used as the material.

また、埋込材の上端部にキャップ本体と空洞部の上端部を塞ぐ上蓋部とからなるキャップ部材が取り付けられ、前記上蓋部は除去できるように設けられている。
これにより、埋込材に締結ボルトを締付けて本線レールや脱線防止ガードをマクラギに固定するまでの間、埋込材の中に小石や土などの異物が入り込まないようにしたものであり、キャップ部材は硬質合成樹脂などで一体に形成することができる。また、空洞部の上端部を塞ぐ上蓋部は、他の部分より厚さを薄くしたり、あるいは空洞部の径に沿って切断可能なように、いわゆるミシン目を入れる等の方法により容易に除去することができる。 Further, a cap member comprising a cap body and an upper lid portion that closes the upper end portion of the cavity portion is attached to the upper end portion of the embedding material, and the upper lid portion is provided so as to be removable.
This prevents foreign objects such as pebbles and dirt from entering the embedding material until the fastening bolts are tightened on the embedding material and the main rail and derailment prevention guard are fixed to sleepers. The member can be integrally formed of a hard synthetic resin or the like. In addition, the upper lid that closes the upper end of the cavity is easily removed by a method such as making a so-called perforation so that it can be made thinner than other parts or cut along the diameter of the cavity. can do.

本発明は、埋込材に締結ボルトを締付けて本線レールや脱線防止ガードをマクラギに固定するまでの間、埋込材の中に小石や土などの異物が入り込まないようにしたものであり、キャップ部材は硬質合成樹脂などで一体に形成することができる。また、空洞部の上端部を塞ぐ上蓋部は、他の部分より厚さを薄くしたり、あるいは空洞部の径に沿って切断可能なように、いわゆるミシン目を入れる等の方法により容易に除去することができる。   The present invention prevents foreign matter such as pebbles and soil from entering the embedded material until the fastening bolts are tightened to the embedded material and the main rail and the derailment prevention guard are fixed to sleepers. The cap member can be integrally formed of a hard synthetic resin or the like. In addition, the upper lid that closes the upper end of the cavity is easily removed by a method such as making a so-called perforation so that it can be made thinner than other parts or cut along the diameter of the cavity. can do.

請求項２記載の埋込材付きマクラギは、請求項１記載の埋込材付きマクラギにおいて、マクラギ本体の上端部に埋込材の周囲に通じる排水溝が設けられていることを特徴とするものである。 The sleeper with embedding material according to claim 2 is the sleeper with embedding material according to claim 1 , characterized in that a drainage groove leading to the periphery of the embedding material is provided at the upper end portion of the sleeper body. It is.

一般に、マクラギ製造型枠の底部には、マクラギの表面形状上テーパが付けられている部分があることから、ＰＣマクラギを製造する過程でテーパ部分に埋込材を鉛直にセットする際、いわゆる座掘りをすることがある。このため、成形されたＰＣマクラギの埋込材の周囲に凹部が形成され、ここに雨水などが溜まって締結ボルを腐食させる等の不都合が生じやすい。本発明はこの問題を解消したものである。なお、キャップ部材の上端面にテーパを付けることにより、座掘りは省略することができる。   In general, the bottom part of the sleeper manufacturing formwork has a taper on the surface shape of the sleeper. Therefore, when the embedding material is set vertically on the taper part in the process of manufacturing the PC sleeper, a so-called seat is used. Sometimes digging. For this reason, a concave portion is formed around the molded PC sleeper embedding material, and rainwater or the like accumulates therein, which tends to cause inconvenience such as corrosion of the fastening bolt. The present invention solves this problem. It should be noted that the digging can be omitted by tapering the upper end surface of the cap member.

請求項３記載のマクラギ用埋込材は、マクラギのコンクリート内に埋設して設置されるマクラギ用埋込材において、上端側に締結ボルトが貫通する空洞部を、その下方に前記空洞部と連通し、前記締結ボルトが螺合されるねじ孔部をそれぞれ有する埋込材と、当該埋込材の上端部に取り付けられたキャップ部材とから構成され、前記キャップ部材はキャップ本体と前記空洞部の上端部を塞ぐ上蓋部と把持片を備え、かつ前記埋込材の上端部に被着することにより取り付けられ、前記上蓋部は前記把持片を引張ることにより把持片と共に除去できるように形成されていることを特徴とするものである。 Sleepers for the implant member according to claim 3, wherein, in the sleeper for the implant member to be installed embedded in the concrete of sleepers, the cavity communicating with the cavity, in its lower fastening bolt penetrating the upper end And an embedding material each having a screw hole portion into which the fastening bolt is screwed, and a cap member attached to an upper end portion of the embedding material, wherein the cap member is formed between the cap body and the cavity portion. An upper lid portion for closing the upper end portion and a gripping piece are provided, and are attached by being attached to the upper end portion of the embedding material, and the upper lid portion is formed so that it can be removed together with the gripping piece by pulling the gripping piece. it is characterized in that there.

請求項４記載のマクラギ用埋込材は、請求項３記載のマクラギ用埋込材において、キャップ部材はマクラギ製造型枠の底部に埋込材を逆さに立て付けるための脚部を備え、当該脚部はマクラギ製造型枠の底部に設けられた取付け孔に挿入されることにより、前記埋込材を前記マクラギ製造型枠の底部に逆さに自立させ、かつ脱型時に切断除去されるように形成されていることを特徴とするものである。 Sleepers for the implant member according to claim 4, wherein, in the sleeper for filler material of claim 3, wherein the cap member comprises a leg portion for applying standing upside down implant member at the bottom of the sleeper manufacturing mold, the The legs are inserted into mounting holes provided at the bottom of the sleeper manufacturing formwork so that the embedding material stands upside down on the bottom part of the sleeper manufacturing formwork and is cut and removed during demolding. It is characterized by being formed .

請求項５記載の埋込材付きマクラギの製造方法は、マクラギ製造型枠の底部に埋込材を設置する工程、マクラギ製造型枠内にコンクリートを打設する工程および型枠を脱型する工程からなる埋込材付きマクラギの製造方法であって、前記マクラギ製造型枠の底部に設けられた取付け孔にキャップ部材を介して前記埋込材を逆さに立て付け、前記キャップ部材は前記取付け孔に差し込んで前記埋込材を立て付け可能な脚部を備えて構成されていることを特徴とするものである。 The manufacturing method of sleepers with embedding material according to claim 5 includes a step of installing an embedding material at the bottom of a sleeper manufacturing formwork, a step of placing concrete in a sleeper manufacturing formwork, and a step of demolding the formwork A method of manufacturing a sleeper with an embedding material, wherein the embedding material is placed upside down via a cap member in a mounting hole provided at the bottom of the sleeper manufacturing formwork, and the cap member is mounted on the mounting hole. It is comprised including the leg part which can be inserted and inserted in the said embedding material, and is characterized by the above-mentioned.

本発明によれば、埋込材は、キャップ部材に突設された脚部をマクラギ製造型枠の底部に設けられた取付け孔に差し込むだけでマクラギ製造型枠の底部にワンタッチでセットすることができる。   According to the present invention, the embedding material can be set to the bottom of the sleeper manufacturing formwork by simply inserting the leg projecting from the cap member into the mounting hole provided at the bottom of the sleeper manufacturing formwork. it can.

本発明によれば、マクラギ本体に埋設された埋込材が、締結ボルトが貫通する空洞部とその下方に前記空洞部と連通し、前記締結ボルトが螺合されるねじ孔部を備えて構成されているので、埋込材の引抜き強度が大きく、性能上要求される引抜き強度を満足させることのできる埋込材が埋設された埋込材付きマクラギを提供することができる。   According to the present invention, the embedding material embedded in the sleeper body includes a hollow portion through which the fastening bolt passes and a screw hole portion that communicates with the hollow portion below and into which the fastening bolt is screwed. Therefore, the sleeper with an embedded material in which the embedded material is embedded, and the embedded material can satisfy the required tensile strength required for performance.

また、埋込材の上端部分に締結ボルトが単に貫通する空洞部が形成されていることで、締結ボルト位置合せおよび締め付けが容易なだけでなく、ねじ孔部が浅い分締結ボルトの締め付けを短時間で行なうことができるため作業性がよく、現場作業を効率的に行なうことができる。   In addition, the hollow part through which the fastening bolt simply penetrates is formed at the upper end of the embedded material, so that the fastening bolt can be positioned and tightened easily, and tightening of the fastening bolt can be shortened due to the shallow screw hole. Since it can be performed in time, workability is good and field work can be performed efficiently.

脱線防止ガードが敷設された鉄道軌道を示し、（ａ）は鉄道軌道の長軸直角方向の縦断面図、（ｂ）は埋込材付きマクラギの長軸直角方向の縦断面図、（ｃ）は埋込材付きマクラギの長軸方向の一部縦断面図、（ｄ）は埋込材付きマクラギの一部平面図である。The railroad track in which the derailment prevention guard is laid is shown, (a) is a longitudinal sectional view in the direction perpendicular to the major axis of the railroad track, (b) is a longitudinal sectional view in the direction perpendicular to the major axis of the sleeper with embedded material, (c) Is a partial longitudinal sectional view in the major axis direction of a sleeper with an embedding material, and (d) is a partial plan view of the sleeper with an embedding material. 脱線防止ガード取付け用埋込材とキャップ部材を示し、（ａ）は埋込材とキャップ部材が切り離された状態の一部破断正面図、（ｂ）は脱線防止ガード取付け用埋込材の横断面図である。The embedding material for attaching a derailment prevention guard and the cap member are shown, (a) is a partially broken front view of the state where the embedding material and the cap member are separated, and (b) is a crossing of the embedding material for attaching the derailment prevention guard. FIG. キャップ部材を示し、（ａ）はその平面図、（ｂ）はその正面図である。A cap member is shown, (a) is the top view, (b) is the front view. 脱線防止ガード取付け用埋込材とキャップ部材を示し、（ａ）は埋込材とキャップ部材を切り離した状態を示す斜視図、（ｂ）は埋込材にキャップ部材を取り付けた状態を示す斜視図である。The embedding material for attaching a derailment prevention guard and the cap member are shown, (a) is a perspective view showing a state where the embedding material and the cap member are cut off, and (b) is a perspective view showing a state where the cap member is attached to the embedding material. FIG. 脱線防止ガード取付け用埋込材の変形例を示す一部破断正面図である。It is a partially broken front view which shows the modification of the embedding material for derailment prevention guard attachment. 埋込材の引抜き試験装置の概要を示し、（ａ）は平面図、（ｂ）は（ａ）におけるイ−イ線断面図である。The outline | summary of the drawing-out test apparatus of an embedding material is shown, (a) is a top view, (b) is the II line sectional drawing in (a). 埋込材の引抜き試験の結果を示す図である。It is a figure which shows the result of the drawing-out test of an embedding material. 脱線防止ガード取付け用埋込材をマクラギ製造型枠の底部にセットする方法を示し、（ａ）はセット前の状態を示す斜視図、（ｂ）はセット後の状態を示す斜視図、（ｃ）はセット後の状態を示す縦断面図である。A method of setting an embedding material for attaching a derailment prevention guard to a bottom part of a sleeper manufacturing formwork is shown, (a) is a perspective view showing a state before setting, (b) is a perspective view showing a state after setting, (c) ) Is a longitudinal sectional view showing a state after setting. 脱線防止ガード取付け用埋込材がマクラギ本体に埋設された状態を示し、（ａ）はその一部斜視図、（ｂ）はその一部縦断面図である。The state where the embedding material for derailment prevention guard attachment was embed | buried under the sleeper main body is shown, (a) is the one part perspective view, (b) is the one part longitudinal cross-sectional view. 脱線防止ガード取付け用埋込材が埋設された状態を示し、（ａ）はその一部斜視図、（ｂ）はその一部縦断面図である。The state where the embedding material for derailment prevention guard attachment is embed | buried is shown, (a) is the partial perspective view, (b) is the partial longitudinal cross-sectional view. 脱線防止ガードが敷設された鉄道軌道の従来例を示し、（ａ）は鉄道軌道の長軸直角方向の縦断面図、（ｂ）はマクラギの長軸直角方向の縦断面図である。The conventional example of the railway track by which the derailment prevention guard was laid is shown, (a) is a longitudinal cross-sectional view of the major axis of the railway track, and (b) is a longitudinal sectional view of the sleeper in the perpendicular direction of the major axis.

図１〜図５は、本発明の一実施形態を示し、図において、ＰＣマクラギ本体１の長軸方向の両端部よりやや内側の上端部にレール載置部１ａ，１ａが左右対称に形成されている。   1 to 5 show an embodiment of the present invention. In the figure, rail mounting portions 1a and 1a are formed symmetrically on the upper end portion slightly inside the major axis direction of the PC sleeper body 1 in the longitudinal direction. ing.

レール載置部１ａ，１ａにはレール２を固定する締結ボルト３を締め付けるためのレール取付け用埋込材４，４がＰＣマクラギ本体１の長軸方向に所定間隔をおいて埋設されている。   Rail mounting parts 4 and 4 for fastening the fastening bolts 3 for fixing the rails 2 are embedded in the rail mounting portions 1a and 1a in the major axis direction of the PC sleeper body 1 at a predetermined interval.

また、レール載置部１ａ，１ａよりさらに内側には脱線防止ガード５を固定する締結ボルト６を締め付けるための脱線防止ガード取付け用埋込材７，７がＰＣマクラギ本体１の長軸方向に所定間隔をおいて埋設されている。   Further, on the inner side of the rail mounting portions 1a and 1a, there are predetermined derailment prevention guard mounting embedded members 7 and 7 for fastening a fastening bolt 6 for fixing the derailment prevention guard 5 in the longitudinal direction of the PC sleeper body 1. It is buried at intervals.

脱線防止ガード取付け用埋込材７は、鋳造または鋼管などから円柱状に形成され、ＰＣマクラギ本体１の上端部に鉛直に埋設されている。また、脱線防止ガード取付け用埋込材７は、空洞部７ａと空洞部７ａの下方に位置するねじ孔部７ｂを備え、空洞部７ａとねじ孔部７ｂは同一鉛直線上に連続し、かつ空洞部７ａの上端はＰＣマクラギ本体１の上端面に開口している。さらに、脱線防止ガード取付け用埋込材７の下端部には鍔状に突出する定着リブ７ｃが形成されている。   The embedding material 7 for attaching the derailment prevention guard is formed in a cylindrical shape from a cast or steel pipe or the like, and is embedded vertically in the upper end portion of the PC sleeper body 1. The derailment prevention guard mounting embedding material 7 includes a cavity portion 7a and a screw hole portion 7b positioned below the cavity portion 7a. The cavity portion 7a and the screw hole portion 7b are continuous on the same vertical line, and are hollow. The upper end of the portion 7a is open to the upper end surface of the PC sleeper body 1. Further, a fixing rib 7c protruding in a hook shape is formed at the lower end portion of the embedding material 7 for attaching the derailment prevention guard.

なお、空洞部７ａとねじ孔部７ｂの深さは、特に限定されるものではないが、標準的なＰＣマクラギ本体１の断面寸法(高さ)等を勘案して決定され、空洞部７ａは５０ｍｍ程度、ねじ孔部７ｂは１３０ｍｍ程度あれば、既存のＰＣマクラギ本体の断面寸法内で性能上要求される引抜き強度を満足させることができる。   The depths of the hollow portion 7a and the screw hole portion 7b are not particularly limited, but are determined in consideration of the cross-sectional dimension (height) of the standard PC sleeper body 1, and the hollow portion 7a is If it is about 50 mm and the screw hole part 7b is about 130 mm, the drawing strength required on performance can be satisfied within the cross-sectional dimension of the existing PC sleeper body.

図５は、脱線防止ガード取付け用埋込材７の変形例を示し、異形棒鋼などから形成され、特に補強リブ７ｃが埋込材７の外周にその全長に渡って形成されている。   FIG. 5 shows a modification of the embedding material 7 for attaching the derailment prevention guard. The embedding material 7 is made of deformed steel bar or the like. In particular, the reinforcing rib 7 c is formed on the outer periphery of the embedding material 7 over the entire length thereof.

なお、図１（ｂ），（ｃ）に図示するように、ＰＣマクラギ本体１と埋込材７のねじ孔部７ｂの底部にねじ孔部７ｂと連通する排水孔１ｂを設ければ、ねじ孔部７ｂに浸入した雨水や結露水等を排水孔１ｂから速やかに排水することができ、ねじ孔部７ｂの錆付き等を防止することができる。   1 (b) and 1 (c), if the drainage hole 1b communicating with the screw hole 7b is provided at the bottom of the screw hole 7b of the PC sleeper body 1 and the embedding material 7, the screw Rain water, condensed water, etc. that have entered the hole 7b can be quickly drained from the drain hole 1b, and rusting of the screw hole 7b can be prevented.

以上のような構成において、マクラギ本体１のレール載置部１ａに敷設されたレール２は、レール取付け用埋込材４に締結ボルト３によって固定され、レール２の内側に敷設された脱線防止ガード５は脱線防止ガード取付け用埋込材７に締結ボルト６によって固定されている。   In the configuration as described above, the rail 2 laid on the rail mounting portion 1 a of the sleeper body 1 is fixed to the rail mounting implant 4 by the fastening bolt 3, and the derailment prevention guard laid on the inner side of the rail 2. Reference numeral 5 denotes a derailment prevention guard mounting embedded member 7 fixed by fastening bolts 6.

なお、符号８は、脱線防止ガード取付け用埋込材７の周囲に溜まる雨水などを排水するための排水溝である。ＰＣマクラギを製造する過程で、マクラギ製造型枠の底部に脱線防止ガード取付け用埋込材７をセットする際に、いわゆる座掘りをすることによりＰＣマクラギ本体１の脱線防止ガード取付け用埋込材７の周囲に凹部９が形成されて雨水などが溜まりやすいため、これを処理するために排水溝８が設けられている。   Reference numeral 8 denotes a drainage groove for draining rainwater or the like that collects around the derailment prevention guard mounting embedding material 7. In the process of manufacturing the PC sleeper, when the embedding material 7 for attaching the derailment prevention guard is set at the bottom of the sleeper manufacturing formwork, the embedding material for attaching the derailment prevention guard of the PC sleeper main body 1 by so-called digging. Since a recess 9 is formed around 7 and rainwater or the like is easily collected, a drainage groove 8 is provided to treat this.

排水溝８は凹９の両側にＰＣマクラギ本体１の長軸方向と直交する方向に形成され、一端側が凹部９と連通している。一方で、凹部９は締結ボルト６のボルト頭部と締結ボルト６に取り付けられる座金の収納凹部として利用することができる。   The drainage grooves 8 are formed on both sides of the recess 9 in a direction perpendicular to the major axis direction of the PC sleeper body 1, and one end side communicates with the recess 9. On the other hand, the recessed portion 9 can be used as a housing recessed portion for a washer attached to the bolt head of the fastening bolt 6 and the fastening bolt 6.

符号１０は、埋込材付きマクラギを製造する際、脱線防止ガード取付け用埋込材７をマクラギ製造型枠１１の底部にセットするためのキャップ部材であり、脱線防止ガード取付け用埋込材７の上端部に被せて取り付けられている。   Reference numeral 10 denotes a cap member for setting the derailment prevention guard mounting embedding material 7 on the bottom of the sleeper manufacturing formwork 11 when manufacturing the sleeper with the embedding material. It is attached to the top of the top.

また、キャップ部材１０は、脱線防止ガード取付け用埋込材７の上端部に被せられたキャップ本体１０ａと脱線防止ガード取付け用埋込材７の空洞部７ａの上端部を塞ぐ上蓋部１０ｂとマクラギ製造型枠１１の取付け孔１１ａに挿入される脚部１０ｃ，１０ｃと把持片１０ｄとから形成されている。   The cap member 10 includes a cap body 10a that covers the upper end portion of the derailment prevention guard mounting embedded material 7, an upper lid portion 10b that covers the upper end portion of the hollow portion 7a of the derailment prevention guard mounting embedded material 7, and a sleeper. It is formed of leg portions 10c, 10c inserted into the mounting holes 11a of the manufacturing mold 11 and gripping pieces 10d.

上蓋部１０ｂは、脱線防止ガード取付け用埋込材７に締結ボルト６を締め付けるまでの間、脱線防止ガード取付け用埋込材７の空洞部７ａの上端部を塞いで土や小石などの異物が入らないようにする機能を有し、空洞部７ａの内径とほぼ同径の外径に形成され、かつ把持片１０ｄを強く引っ張ると把持片１０ｄと共に除去できる強度に形成されている。   The upper lid portion 10b closes the upper end of the hollow portion 7a of the embedding material 7 for attaching the derailment prevention guard until the fastening bolt 6 is tightened to the embedding material 7 for attaching the derailment prevention guard, and foreign matter such as dirt and pebbles It has a function of preventing entry, is formed to have an outer diameter that is substantially the same as the inner diameter of the cavity 7a, and has a strength that can be removed together with the gripping piece 10d when the gripping piece 10d is pulled strongly.

脚部１０ｃ，１０ｃは、上蓋部１０ｂを挟んでその両側に円弧状または平板状に突設され、先端部に爪１０ｅ，１０ｅがそれぞれ突設されている。そして、脚部１０ｃ，１０ｃがマクラギ製造型枠１１の取付け孔１１ａに挿入され、その先端の爪１０ｅ，１０ｅが取付け孔１１ａの裏側の縁に係止することで、脱線防止ガード取付け用埋込材７はマクラギ製造型枠１１の底部に自立するようになっている。さらに、脚部１０ｃ，１０ｃは、マクラギ製造型枠１１を脱型する際に、キャップ本体１０ａの上端面で破断し、除去される強度に形成されている。   The leg portions 10c and 10c are projected in a circular arc shape or a flat plate shape on both sides of the upper lid portion 10b, and claws 10e and 10e are respectively projected at the tip portions. Then, the leg portions 10c and 10c are inserted into the mounting holes 11a of the sleeper manufacturing mold 11, and the claws 10e and 10e at the tips of the legs 10c are engaged with the edge on the back side of the mounting holes 11a. The material 7 is adapted to stand on the bottom of the sleeper manufacturing formwork 11. Further, the legs 10c, 10c are formed to have such strength that they are broken and removed at the upper end surface of the cap body 10a when the sleeper manufacturing form 11 is removed.

図６と図７は、ＰＣマクラギ本体に埋設された埋込材について引抜き試験を行った結果と引抜き試験に用いられた試験装置を示したものである。   FIG. 6 and FIG. 7 show the results of conducting a pull-out test on the embedded material embedded in the PC sleeper body and the test apparatus used for the pull-out test.

引抜き試験は、図６（ａ），（ｂ）に図示するように、装置本体ＡにＰＣマクラギ本体１を固定し、ＰＣマクラギ本体１に埋設された埋込材７にテンションバーＢを連結してテンションバーＢを引っ張ったときの埋込材７の引抜き抵抗力を測定した。引抜き試験は、図７に図示するような４種類のタイプの埋込材について行った。   In the pull-out test, as shown in FIGS. 6A and 6B, the PC sleeper main body 1 is fixed to the apparatus main body A, and the tension bar B is connected to the embedding material 7 embedded in the PC sleeper main body 1. Then, the pulling resistance force of the embedding material 7 when the tension bar B was pulled was measured. The pull-out test was conducted on four types of implants as shown in FIG.

各埋込材のタイプについて説明すると、タイプ１は、空洞部がなく全長がねじ孔部で、外周にその全長にわたって補強リブが設けられているタイプ、タイプ２は、空洞部とその下側にねじ孔部を有し、ねじ孔部の外周にその全長にわたって補強リブが設けられているタイプ、タイプ３は、空洞部とその下側にねじ孔部を有し、空洞部およびねじ孔部の外周にその全長にわたって補強リブが設けられているタイプ、そして、タイプ４は、空洞部とその下側にねじ孔部を有し、ねじ孔部の下端部に鍔状に突出する補強リブが設けられているタイプである。いずれもねじ孔部の長さは１３０ｍｍで同じである。   The type of each embedded material will be described. Type 1 is a type in which there is no hollow portion and the entire length is a screw hole portion, and a reinforcing rib is provided on the outer periphery over the entire length, and type 2 is in the hollow portion and the lower side thereof. A type having a screw hole portion and a reinforcing rib provided on the outer periphery of the screw hole portion over its entire length, Type 3 has a hollow portion and a screw hole portion below the hollow portion, The type in which the reinforcing rib is provided on the outer periphery over the entire length, and the type 4 has a hollow portion and a screw hole portion below the hollow portion, and a reinforcing rib protruding in a hook shape is provided at the lower end portion of the screw hole portion. Type. In either case, the length of the screw hole is the same at 130 mm.

図７の結果から明らかなように、タイプ２，３，４の埋込材（本発明）の引抜強度が、タイプ１の埋込材（従来例）の引抜強度より１．５倍以上大きく、本発明は実用性が大きいことがわかった。   As is clear from the results of FIG. 7, the pullout strength of the type 2, 3 and 4 implants (invention) is 1.5 times greater than the pullout strength of the type 1 implant (conventional example) It was found that the present invention has great practicality.

次に、脱線防止ガード取付け用埋込材７が埋設された埋込材付きマクラギを製造する場合を例に、本発明の埋込材付きマクラギの製造方法を説明する。   Next, the manufacturing method of the sleeper with the embedded material of the present invention will be described by taking as an example the case of manufacturing the sleeper with the embedded material in which the embedding material 7 for attaching the derailment prevention guard is embedded.

(1) 最初に、脱線防止ガード取付け用埋込材７の上端部にキャップ部材１０を取り付ける。キャップ部材１０は脱線防止ガード取付け用埋込材７に製造当初から取り付けておいてもよい。 (1) First, the cap member 10 is attached to the upper end portion of the derailment prevention guard attaching embedding material 7. The cap member 10 may be attached to the embedding material 7 for attaching the derailment prevention guard from the beginning of manufacture.

(2) 次に、キャップ部材１０の脚部１０ｃ，１０ｃをマクラギ製造型枠１１の取付け孔１１ａに差し込んで、脱線防止ガード取付け用埋込材７をマクラギ製造型枠１１の底部に上端側を下にして鉛直にセットする。 (2) Next, the leg portions 10c, 10c of the cap member 10 are inserted into the attachment holes 11a of the sleeper manufacturing mold 11, and the derailment prevention guard mounting embedding material 7 is placed on the bottom of the sleeper manufacturing mold 11 with the upper end side thereof. Set vertically with the bottom.

(3) 次に、マクラギ製造型枠１１内にコンクリートを打設し、コンクリートが充分な強度を発現するまで養生する。そして、マクラギ製造型枠１１を脱型することにより脱線防止ガード取付け用埋込材７が埋設された埋込材付きマクラギが完成する。 (3) Next, concrete is placed in the sleeper manufacturing form 11 and cured until the concrete exhibits sufficient strength. Then, by removing the sleeper manufacturing form 11, the sleeper with the embedded material in which the embedded material 7 for attaching the derailment prevention guard is embedded is completed.

なお、完成直後の埋込材付きマクラギは、キャップ部材１０の脚片１０ｃ，１０ｃは脱型時にキャップ本体１０ａの上端面で破断して除去されているが、上蓋部１０ｂは除去されないため、脱線防止ガード取付け用埋込材７の空洞部７ａの上端部は上蓋部１０ｂによって塞がれている。このため、埋込材７の中に土や石などの異物がり込んで不具合を生ずることはない。   Note that the sleepers with embedded material immediately after completion are derailed because the leg pieces 10c, 10c of the cap member 10 are removed by breaking at the upper end surface of the cap body 10a when demolding, but the upper lid portion 10b is not removed. The upper end portion of the hollow portion 7a of the embedding material 7 for attaching the prevention guard is closed by the upper lid portion 10b. For this reason, foreign matters such as soil and stones do not enter the embedding material 7 to cause a problem.

したがって、埋込材７に締結ボルト６を締め付けて脱線防止ガード５を取り付ける際に、把持部１０ｄを掴んで把持部１０ｄと共に上蓋部１０ｂを除去することにより締結ボルト６を締め付けることができる。   Therefore, when fastening the fastening bolt 6 to the embedding material 7 and attaching the derailment prevention guard 5, the fastening bolt 6 can be fastened by grasping the grip portion 10 d and removing the upper lid portion 10 b together with the grip portion 10 d.

なお、上記実施形態では、脱線防止ガード取付け用埋込材付きマクラギおよび脱線防止ガード取付け用埋込材について説明したが、本線レール取付け用埋込材付きマクラギおよび本線レール取付け用埋込材にも適用することができる。   In the above embodiment, the sleeper with an embedding material for mounting the derailment prevention guard and the embedding material for mounting the derailment prevention guard have been described. However, the sleeper with the embedding material for mounting the main rail and the embedding material for mounting the main rail are also described. Can be applied.

本発明は、埋込材の引抜き強度が大きく、かつマクラギを製造する際に埋込材をマクラギ製造型枠の底部にワンタッチでセットできる埋込材付きマクラギの製造方法を提供することができる。   INDUSTRIAL APPLICABILITY The present invention can provide a method for producing a sleeper with an embedding material in which the embedding material has a high pulling strength and can be set on the bottom of a sleeper manufacturing formwork with a single touch when the sleeper is produced.

１ ＰＣマクラギ本体
１ａ レール載置部
１ｂ 排水孔
２ レール
３ 締結ボルト
４ 埋込材（レール取付け用埋込材）
５ 脱線防止ガード
６ 締結ボルト
７ 埋込材（脱線防止ガード取付け用埋込材）
７ａ 空洞部
７ｂ ねじ孔部
７ｃ 定着リブ
８ 排水溝
９ 凹部
１０ キャップ部材
１０ａ キャップ本体
１０ｂ 上蓋部
１０ｃ 脚部
１０ｄ 把持部
１１ マクラギ製造型枠
１１ａ 取付け孔 DESCRIPTION OF SYMBOLS 1 PC sleeper main body 1a Rail mounting part 1b Drain hole 2 Rail 3 Fastening bolt 4 Embedding material (embedding material for rail mounting)
5 Derailment prevention guard 6 Fastening bolt 7 Embedding material (embedding material for mounting the derailment prevention guard)
7a Cavity 7b Screw hole 7c Fixing rib 8 Drainage groove 9 Recess 10 Cap member 10a Cap body 10b Upper lid 10c Leg 10d Grasping part 11 Sleeper mold 11a Mounting hole

Claims (5)

マクラギ本体と当該マクラギ本体に埋設された埋込材と当該埋込材の上端部に取り付けられたキャップ部材とからなる埋込材付きマクラギにおいて、前記埋込材は締結ボルトが貫通する空洞部とその下方に前記空洞部と連通し、前記締結ボルトが螺合されるねじ孔部を備え、前記キャップ部材は前記埋込材の空洞部の上端部を塞ぐ上蓋部と把持片を備え、かつ前記埋込材の上端部に被着することにより取り付けられ、前記上蓋部は前記把持片を引張ることにより把持片と共に除去できるように形成されていることを特徴とする埋込材付きマクラギ。 In sleeper body and the sleepers filler material with sleepers comprising a cap member attached to the upper end portion of the buried implant member and the implant member to the body, the filler material is a hollow portion fastening bolt penetrates The cap member includes a screw hole portion that communicates with the cavity portion below and is screwed into the fastening bolt , the cap member includes an upper lid portion that covers an upper end portion of the cavity portion of the embedding material, and a gripping piece, and A sleeper with an embedding material, wherein the sleeper is attached by being attached to an upper end portion of the embedding material, and the upper lid portion is formed so as to be removed together with the grasping piece by pulling the gripping piece . マクラギ本体の上端部に埋込材の周囲に通じる排水溝が設けられていることを特徴とする請求項１記載の埋込材付きマクラギ。 Filler material with sleepers according to claim 1, wherein a drainage groove leading around is provided in the filler material to the upper end portion of the sleeper body. マクラギのコンクリート内に埋設して設置されるマクラギ用埋込材において、上端側に締結ボルトが貫通する空洞部を、その下方に前記空洞部と連通し、前記締結ボルトが螺合されるねじ孔部をそれぞれ有する埋込材と、当該埋込材の上端部に取り付けられたキャップ部材とから構成され、前記キャップ部材はキャップ本体と前記空洞部の上端部を塞ぐ上蓋部と把持片を備え、かつ前記埋込材の上端部に被着することにより取り付けられ、前記上蓋部は前記把持片を引張ることにより把持片と共に除去できるように形成されていることを特徴とするマクラギ用埋込材。 In sleepers for the implant member to be installed embedded in the concrete of the sleeper, a cavity for fastening bolts through the upper end, communicates with the cavity thereunder, threaded hole into which the fastening bolt is screwed An embedding material each having a portion, and a cap member attached to the upper end portion of the embedding material, the cap member comprising a cap body and an upper lid portion for closing the upper end portion of the cavity portion, and a gripping piece, and wherein the mounted by depositing on the upper end portion of the filler material, sleepers for the implant member, characterized in that it is formed so as to be removed together with the grip piece upper lid portion by pulling the gripping piece. 請求項３記載のマクラギ用埋込材において、キャップ部材はマクラギ製造型枠の底部に埋込材を逆さに立て付けるための脚部を備え、当該脚部はマクラギ製造型枠の底部に設けられた取付け孔に挿入されることにより、前記埋込材を前記マクラギ製造型枠の底部に逆さに自立させ、かつ脱型時に切断除去されるように形成されていることを特徴とするマクラギ用埋込材。 4. The sleeper embedding material according to claim 3, wherein the cap member is provided with a leg portion for standing the embedding material upside down at a bottom portion of the sleeper manufacturing mold, and the leg portion is provided at a bottom portion of the sleeper manufacturing mold. The embedding material is formed so that the embedding material is made to stand upside down at the bottom of the sleeper manufacturing mold by being inserted into the mounting hole, and is cut and removed at the time of demolding. Ingredients. マクラギ製造型枠の底部に埋込材を設置する工程、マクラギ製造型枠内にコンクリートを打設する工程および型枠を脱型する工程からなる埋込材付きマクラギの製造方法であって、前記マクラギ製造型枠の底部に設けられた取付け孔にキャップ部材を介して前記埋込材を逆さに立て付け、前記キャップ部材は前記取付け孔に差し込んで前記埋込材を立て付け可能な脚部を備えて構成されていることを特徴とする埋込材付きマクラギの製造方法。   A method for producing sleepers with an embedding material comprising a step of installing an embedding material at the bottom of a sleeper manufacturing formwork, a step of placing concrete in a sleeper manufacturing formwork, and a step of demolding the formwork, The embedding material is placed upside down through a cap member in a mounting hole provided at the bottom of the sleeper manufacturing formwork, and the cap member is inserted into the mounting hole and has a leg portion on which the embedding material can be stood. The manufacturing method of the sleeper with an embedding material characterized by comprising.
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