JP3520029B2 - Cable retracting method and retracting device - Google Patents
Cable retracting method and retracting deviceInfo
- Publication number
- JP3520029B2 JP3520029B2 JP2000162832A JP2000162832A JP3520029B2 JP 3520029 B2 JP3520029 B2 JP 3520029B2 JP 2000162832 A JP2000162832 A JP 2000162832A JP 2000162832 A JP2000162832 A JP 2000162832A JP 3520029 B2 JP3520029 B2 JP 3520029B2
- Authority
- JP
- Japan
- Prior art keywords
- cable
- chuck
- cylinder
- push
- pushing cylinder
- 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.)
- Expired - Lifetime
Links
Landscapes
- Bridges Or Land Bridges (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、斜張橋やニールセ
ン橋等の橋梁における吊ケーブルを緊張架設する為のケ
ーブル引込み方法及びそのケーブル引込み装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable pulling method and a cable pulling apparatus for tensioning a suspension cable in a cable-stayed bridge or a Nielsen bridge.
【０００２】[0002]
【従来の技術】斜張橋やニールセン橋は吊ケーブルで橋
梁が支持されるが、その吊ケーブルを橋梁に引込んで所
定の張力で掛け止めする為に、各種のケーブル引込み装
置（張力導入装置）が開発、提案されている。そのケー
ブル引込み装置として、例えば特開平２−２４３８０８
号公報（特許第２７２７５３３号）が存在する。2. Description of the Related Art Cable-stayed bridges and Nielsen bridges are supported by suspension cables, but various cable retractors (tension introducing devices) are used to retract the suspension cables and suspend them with a predetermined tension. Has been developed and proposed. As the cable retracting device, for example, JP-A-2-243808
Japanese Patent Publication No. 2727533 exists.
【０００３】このケーブル引込み装置は、吊ケーブルの
後端部に、後方に延出するロッドを有するケーブルソケ
ットを固着し、他方、橋梁の主桁に設けた支持部より前
方位置にジャッキ装置を配置すると共に、支持部にて前
記ケーブルソケットをケーブルの方向に案内し、ジャッ
キ装置で上記ロッドを後方に引き込み、該ロッドをその
引込み位置で戻り止めするナットを有し、更にケーブル
ソケットとジャッキ装置との間に、ケーブルに沿って単
数又は複数個のスペーサを押出し動作の都度順次追加し
て挿入するようにしたものである。In this cable retracting device, a cable socket having a rod extending rearward is fixed to a rear end portion of a suspension cable, while a jacking device is arranged in front of a supporting portion provided on a main girder of a bridge. At the same time, the support unit guides the cable socket in the direction of the cable, the jack device pulls the rod backward, and the rod has a nut for detenting the rod at the retracted position. In the meantime, one or more spacers are sequentially added and inserted along the cable each time the pushing operation is performed.
【０００４】[0004]
【発明が解決しようとする課題】上記装置は、ジャッキ
装置が作動してロッドを一定距離引き込む毎に、該ロッ
ドに螺合する戻り止ナットを締め上げ、且つジャッキ装
置の作動の都度、ケーブルソケットとジャッキ装置との
間にスペーサを追加挿入する必要がある。しかしなが
ら、ジャッキ装置を作動する毎に、戻り止ナットを締め
上げ、且つジャッキ装置とケーブルソケット（又はスペ
ーサ）との間にスペーサを順次追加する作業は大変で、
引込み作業に要する時間が長時間化するという問題点を
有する。又、ケーブルの後端部に連結固着したロッドは
ケーブルの引込みに伴って、橋梁に取り付けられた支持
部より後方に突出するため、橋梁の主桁に設けた支持部
より下流側に前記突出するロッドが収容される空間部を
設ける必要がある。更に、ケーブルの後端部に固着する
ソケットに、ネジが切られた長尺のロッドを後方に突出
させて連結する必要があり、ケーブルの全長が長くな
り、ケーブルを引き上げたりする作業が大変であるとい
う問題点を有する。According to the above-mentioned device, every time the jack device is actuated and the rod is pulled in a certain distance, the detent nut screwed onto the rod is tightened up, and the cable socket is operated each time the jack device is actuated. It is necessary to insert an additional spacer between the jack device and the jack device. However, every time the jack device is activated, it is difficult to tighten the detent nut and add spacers between the jack device and the cable socket (or spacer) one after another,
There is a problem that the time required for the pulling-in work becomes long. Further, since the rod connected and fixed to the rear end of the cable protrudes rearward from the supporting portion attached to the bridge as the cable is retracted, the rod protrudes to the downstream side of the supporting portion provided on the main girder of the bridge. It is necessary to provide a space for accommodating the rod. In addition, it is necessary to connect a long rod with a thread protruding backward to a socket that is fixed to the rear end of the cable, which increases the total length of the cable and makes it difficult to pull up the cable. There is a problem.
【０００５】本発明は上記した従来の技術が有する問題
点に鑑みてなされたもので、その目的とするところは、
ケーブルソケットより下流側に長尺物を連結することな
く、ケーブルの引込み動作を行うことができる引込み方
法、及び引込み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 of the prior art, and the purpose thereof is to:
An object of the present invention is to provide a retracting method and a retracting device that can retract a cable without connecting a long object downstream of the cable socket.
【０００６】[0006]
【課題を解決するための手段】上記課題を達成する為に
本発明が講じた技術的手段は、ケーブルの引き込み方向
端部に定着部を備えたソケットを固着し、そのケーブル
の外側に、軸方向に沿って係合手段を一定間隔毎に形成
した押し込みシリンダを被着固定し、この押し込みシリ
ンダの係合手段を利用して、ケーブルの引込み方向に沿
って一定距離引込み、その引き込み終端位置で該押し込
みシリンダの係合手段に固定のチャック手段を係合させ
て押し込みシリンダの戻りを止め、他方、引き込み時の
チャック手段を解放して盛り替え、この引き込みとチャ
ック手段による係脱の盛り替え動作を繰り返して前記押
し込みシリンダをケーブル引込み方向に引込むことを特
徴とする。上記押し込みシリンダをケーブルの張設方向
に引込み移動させる方法としては、引張る又は押込むの
何れでもよい。The technical means taken by the present invention to achieve the above object is to fix a socket provided with a fixing portion at the end of the cable in the retracting direction, and to fix the shaft on the outside of the cable. A push-in cylinder having engaging means formed at regular intervals along the direction is adhered and fixed, and the engaging means of this push-in cylinder is used to pull in a certain distance along the pulling direction of the cable, and at the pull-in end position. A fixed chuck means is engaged with the engaging means of the push-in cylinder to stop the return of the push-in cylinder, while the chuck means at the time of retraction is released and refilled. Repeating this, the push-in cylinder is pulled in the cable pull-in direction. As a method for retracting and moving the pushing cylinder in the cable tension direction, either pulling or pushing may be used.
【０００７】上記ケーブルの引込み方法を実施する為の
引込み装置は、ケーブルの引き込み方向端部に定着部を
備えたソケットを固着し、そのケーブルの外側に、軸方
向に沿って係合手段を一定間隔毎に形成した押し込みシ
リンダを被着固定し、他方、橋梁上に位置する固定部材
に、前記押し込みシリンダの係合手段と係脱するチャッ
ク手段を連結保持したストローク手段と、そのストロー
ク手段の作動で所定量移動された押し込みシリンダを移
動位置に定着保持する戻り止用のチャック手段を取り付
けた構成を特徴とする。上記押し込みシリンダは、ケー
ブルを包被するパイプ形態であるが、引込み完了後にケ
ーブルから取り外しできるよう、周方向を二分割、或い
は三分割した縦割り部材の接合で構成する。A pulling device for carrying out the above cable pulling method is such that a socket provided with a fixing portion is fixed to an end portion of the cable in the pulling direction, and an engaging means is fixed to the outside of the cable along the axial direction. Stroke means in which push-in cylinders formed at intervals are adhered and fixed, while chuck means for engaging and disengaging the push-in cylinder engagement means are connected to a fixing member located on the bridge, and the operation of the stroke means It is characterized in that a detent chuck means for fixing and holding the push-in cylinder, which has been moved by a predetermined amount, at the moving position is attached. The push-in cylinder is in the form of a pipe that wraps the cable, but is constructed by joining vertical split members whose circumferential direction is divided into two or three so that it can be removed from the cable after the pulling-in is completed.
【０００８】上記押し込みシリンダに形成する係合手段
は、軸方向に沿って一定間隔毎に形成した環状溝、或い
は外周面に一定間隔をおいて凹設した凹部等何れでもよ
く、要はストローク手段に連結保持されるチャック手段
及び固定のチャック手段が係合して押し込みシリンダを
移動又は停止させることができる形態であればよい。The engaging means formed on the push-in cylinder may be an annular groove formed at regular intervals along the axial direction, or a concave portion provided on the outer peripheral surface at regular intervals, or the stroke means. Any form may be adopted as long as the chuck means connected and held to and the fixed chuck means can be engaged to move or stop the pushing cylinder.
【０００９】上記押し込みシリンダをケーブル方向に引
張り又は押込むストローク手段は、押し込みシリンダの
軸心と平行ならしめて該押し込みシリンダの両側に配置
した２基の油圧ジャッキで構成し、その油圧ジャッキ
は、橋梁上の固定部材に取付けて反力を取るようにす
る。橋梁上の固定部材としては、橋梁の主桁に設けた支
持部に後部を固定し、先部を橋梁上に突出させた２本の
平行なテンションロッドが挙げられ、そのテンションロ
ッドの先部に連結固定する。The stroke means for pulling or pushing the pushing cylinder in the cable direction is composed of two hydraulic jacks arranged on both sides of the pushing cylinder so as to be parallel to the axis of the pushing cylinder. Attach it to the upper fixing member to take reaction force. As the fixing member on the bridge, there are two parallel tension rods whose rear part is fixed to the supporting part provided on the main girder of the bridge and whose front part is projected on the bridge. Connect and fix.
【００１０】上記ストローク手段に連結保持するチャッ
ク手段と、２本のテンションロッドに亘って固定する戻
り止用のチャック手段は、押し込みシリンダを案内する
通孔を開穿した案内枠と、その案内枠の軸心と交差する
方向から径方向にスライドして押し込みシリンダの環状
溝に嵌脱するチャック板とで構成されている。又、前記
チャック板は、押し込みシリンダとチャック手段の案内
枠を係合一体化し、ストローク手段による引張り或いは
押込み時該押し込みシリンダと係合して移動させること
ができる係合強度、及びケーブルの張力に抗して押し込
みシリンダを留めておくだけの係合強度を発揮できるも
のとする。その形態としては、例えば係合手段の環状溝
に対して径方向の相対する方向（上・下方向、左・右方
向等）に配置した一対のチャック板、或いは径方向にス
ライドする１枚のチャック板等が挙げられる。そして、
押し込みシリンダの環状溝に対して前記チャック板を嵌
脱させる手段としては、油圧シリンダ、或いはボールネ
ジ機構等を採用することができる。The chuck means connected and held to the stroke means and the detent chuck means fixed over the two tension rods are a guide frame having a through hole for guiding the pushing cylinder, and the guide frame. And a chuck plate that slides in the radial direction from a direction intersecting the axis of the chuck plate and is fitted into and removed from the annular groove of the pressing cylinder. Further, the chuck plate has a push-in cylinder and a guide frame of the chuck means engaged and integrated with each other, and has an engaging strength capable of being moved by being engaged with the push-in cylinder at the time of pulling or pushing by the stroke means, and cable tension. It is possible to exert the engaging strength enough to hold the pushing cylinder against. As a form thereof, for example, a pair of chuck plates arranged in directions (upward / downward direction, leftward / rightward direction, etc.) which are opposed to the annular groove of the engagement means in the radial direction, or one chuck plate slid in the radial direction. Examples include a chuck plate and the like. And
A hydraulic cylinder, a ball screw mechanism, or the like can be used as a means for fitting and removing the chuck plate with respect to the annular groove of the pushing cylinder.
【００１１】上記手段によれば、ケーブルの外側に被着
した押し込みシリンダの係合手段に、一定距離を引込み
又は押込み動作するストローク手段に連結保持したチャ
ック手段を係合させてストロークすることで、押し込み
シリンダの先部はケーブルの端部に固着されたソケット
又はソケットより上流側に固着した押し込み座金に当接
してケーブルを押し込みシリンダと一緒に移動させる。
そして、前記ストロークにより一定距離移動した押し込
みシリンダに、固定部材に取り付けたチャック手段を係
合させて押し込みシリンダ及びケーブルの戻りを止め、
その状態でストローク手段に連結されたチャック手段を
解放して該ストローク手段を原点位置に戻す。この動作
を繰り返すことで、ケーブルソケットを橋梁の主桁に設
けた支持部の位置まで引込むことができる。According to the above-mentioned means, the engaging means of the pushing cylinder attached to the outside of the cable is engaged with the chuck means connected and held to the stroke means for pulling or pushing for a certain distance to make a stroke, The tip of the pushing cylinder abuts a socket fixed to the end of the cable or a pushing washer fixed upstream of the socket to move the cable together with the pushing cylinder.
Then, the push-in cylinder that has moved a certain distance by the stroke is engaged with the chuck means attached to the fixing member to stop the return of the push-in cylinder and the cable.
In that state, the chuck means connected to the stroke means is released to return the stroke means to the original position. By repeating this operation, the cable socket can be retracted to the position of the support portion provided on the main girder of the bridge.
【００１２】又、上記引込み方法の実施に供する引込み
装置は、ケーブルソケットより上流側のケーブル外側に
被着した押し込みシリンダを、ストローク手段に連結し
たチャック手段で挟持して該ストローク手段をケーブル
方向にストロークさせ、そのストロークにより移動した
押し込みシリンダを、固定部材に取り付けた戻り止用の
チャック手段で挟持することで、ストローク手段のチャ
ック手段を解放しても押し込みシリンダが、引込み方向
と逆方向に戻ることはない。この動作を繰り返すことで
ケーブルを必要長さ宛、引込むことができる。そして、
この装置によれば、ケーブルソケットより上流側で、引
込み（又は押込み）及び戻り止を行う為、ケーブルソケ
ットの端部に長尺物を連結する必要がない。Further, in the retracting device used for implementing the retracting method, the pushing cylinder attached to the outer side of the cable upstream of the cable socket is clamped by the chuck means connected to the stroke means to move the stroke means in the cable direction. By making a stroke and holding the push-in cylinder moved by the stroke by the detent chuck means attached to the fixed member, the push-in cylinder returns in the direction opposite to the pull-in direction even if the chuck means of the stroke means is released. There is no such thing. By repeating this operation, the cable can be drawn to the required length. And
According to this device, since drawing (or pushing) and detenting are performed on the upstream side of the cable socket, it is not necessary to connect a long object to the end of the cable socket.
【００１３】[0013]
【発明の実施の形態】以下、本発明の実施の形態の一例
を図面に基づき説明する。本発明のケーブル引込み方法
は、橋梁の吊ケーブルとして、ケーブルの後端部に、定
着部を備えたケーブルソケットを固着したものを使用
し、そのケーブルソケットより上流のケーブル外側に、
押し込みシリンダを被着する。この押し込みシリンダの
外周面には、軸方向に沿って係合手段の環状溝が一定間
隔毎に形成されており、この係合手段を利用して押し込
みシリンダを橋梁の主桁に設けた支持部側に引込むもの
である。BEST MODE FOR CARRYING OUT THE INVENTION An example of an embodiment of the present invention will be described below with reference to the drawings. The cable retracting method of the present invention uses, as a suspension cable for a bridge, a cable socket having a fixing portion fixed to the rear end of the cable, and outside the cable upstream from the cable socket.
Attach the push cylinder. On the outer peripheral surface of the push-in cylinder, annular grooves of engaging means are formed at regular intervals along the axial direction, and by using the engaging means, the push-in cylinder is provided on the main girder of the bridge. It is something that pulls to the side.
【００１４】即ち、一定距離を引込み又は押込むストロ
ーク手段に、前記押し込みシリンダの係合手段に係脱す
るチャック手段を連結保持し、そのチャック手段を押し
込みシリンダの係合手段に係合させてストローク手段を
作動すると、該押し込みシリンダの先端がケーブルソケ
ット又はケーブルソケットの上流側に固着した押し込み
座金に当接し、押し込みシリンダと一緒にケーブルが移
動される。そして、ストローク手段のストロークエンド
で、固定部材に取り付けた戻り止用のチャック手段を、
一定距離移動して停止する押し込みシリンダの係合手段
に係合させ、ストローク手段のチャック手段を押し込み
シリンダの係合手段から解放して盛り替えることで、移
動した押し込みシリンダ及びケーブルが元の位置へ移動
するのを防止する。尚、ストローク手段のチャック手段
を解放して該チャック手段を初期位置に戻し、再度チャ
ック手段を係合させてストローク手段を引込み又は押し
込み方向にストロークするが、この時固定部材に取り付
けた戻り止用のチャック手段は解放するものとする。従
って、上記の動作を繰り返すことで、ストローク手段の
ストローク量づつ押し込みシリンダを引込み移動させる
ことができる。That is, a chuck means that engages and disengages with the engaging means of the pushing cylinder is connected and held to the stroke means that pulls in or pushes a certain distance, and the chuck means engages with the engaging means of the pushing cylinder to make a stroke. When the means is actuated, the tip of the pushing cylinder comes into contact with the cable socket or the pushing washer fixed to the upstream side of the cable socket, and the cable is moved together with the pushing cylinder. Then, at the stroke end of the stroke means, the chuck means for detent attached to the fixed member is
By engaging the engaging means of the pushing cylinder that moves a certain distance and then stopping, and releasing the chuck means of the stroke means from the engaging means of the pushing cylinder and refilling, the moved pushing cylinder and cable are returned to their original positions. Prevent it from moving. In addition, the chuck means of the stroke means is released to return the chuck means to the initial position, and the chuck means is engaged again to stroke the stroke means in the retracting or pushing direction. The chucking means shall be released. Therefore, by repeating the above operation, the pushing cylinder can be retracted and moved by the stroke amount of the stroke means.
【００１５】次に、上記したケーブル引込み方法の実施
に使用する引込み装置について説明する。先ず、橋梁を
吊下げ支持する吊ケーブル１の後端部に、定着部を備え
たケーブルソケット２を固着し、そのケーブルソケット
２より上流側のケーブル１外側に金属製の押し込み座金
３を配置し、この押し込み座金３より上流側のケーブル
１外側に押し込みシリンダ４を被着する。尚、前記押し
込み座金３は押し込みシリンダ４がケーブルソケット２
に直接衝合するのを防止すると共に、押し込みシリンダ
の押圧力をケーブルソケット２よりも広い面積で受ける
為に使用するもので、この押し込み座金３の使用は任意
である。Next, a retracting device used for carrying out the above cable retracting method will be described. First, a cable socket 2 having a fixing portion is fixed to the rear end of a suspension cable 1 for suspending and supporting a bridge, and a metal push washer 3 is arranged outside the cable 1 upstream of the cable socket 2. The push cylinder 4 is attached to the outside of the cable 1 upstream of the push washer 3. The push washer 3 has the push cylinder 4 and the cable socket 2
The push washer 3 is used for preventing the direct abutment of the push cylinder and for receiving the pushing force of the pushing cylinder over a larger area than the cable socket 2. The use of the pushing washer 3 is optional.
【００１６】上記押し込みシリンダ４は、吊ケーブル１
を包被し得る金属製のパイプ状に形成され、そのシリン
ダの長さは該ケーブル１を引込み動作するに必要な長さ
とし、その全長を１本で構成しても、或いはある長さの
ものを複数本繋ぎ合わせて構成してもよい。そして、こ
の押し込みシリンダ４の外周面には係合手段５が軸方向
に沿って一定間隔毎に形成され、且つそのシリンダ４は
軸心に沿って二分割された二つ割部材４ａ、４ｂで構成
されており、両部材４ａ、４ｂはボルト・ナット６で締
結して一体化されている。上記係合手段５は、該シリン
ダ４の外径より小径な環状溝が軸方向に一定間隔をおい
て形成されて構成されている。The pushing cylinder 4 is a suspension cable 1
Is formed in the shape of a metal pipe capable of encapsulating, and the length of the cylinder is set to the length necessary for retracting and operating the cable 1. You may comprise by connecting several pieces. Engaging means 5 are formed on the outer peripheral surface of the push-in cylinder 4 at regular intervals along the axial direction, and the cylinder 4 is divided into two along the axial center by halving members 4a and 4b. Both members 4a and 4b are fastened together by bolts and nuts 6 to be integrated. The engaging means 5 is configured by forming annular grooves having a diameter smaller than the outer diameter of the cylinder 4 at regular intervals in the axial direction.
【００１７】上記押し込みシリンダ４を取り付けたケー
ブル１を、ケーブル１の軸方向に引込むストローク手段
７は、前記押し込みシリンダ４の軸心と平行ならしめて
両側に配置した２基の油圧ジャッキ７ａ、７ｂで構成さ
れ、その２基の油圧ジャッキ７ａ、７ｂは、橋梁の主桁
２４に設けた支持部２５に後部をナット２６で固定し、
先部を橋梁上方に突出させたテンションロッド８、８’
に連結固定されている。即ち、油圧ジャッキ７ａ、７ｂ
のラム９をテンションロッド８、８’の先部にナット２
６を介して連結固着した回動継手１１に連結され、これ
により油圧ジャッキ７ａ、７ｂは外側のシリンダ部１０
が軸方向にスライドするように構成されている。又、２
基の油圧ジャッキ７ａ、７ｂは同期して作動するように
制御されている。The stroke means 7 for pulling the cable 1 to which the pushing cylinder 4 is attached in the axial direction of the cable 1 is composed of two hydraulic jacks 7a and 7b arranged on both sides so as to be parallel to the axis of the pushing cylinder 4. The two hydraulic jacks 7a, 7b are configured so that the rear portion is fixed to the support portion 25 provided on the main girder 24 of the bridge with the nut 26,
Tension rods 8 and 8'with the tip protruding above the bridge
It is connected and fixed to. That is, the hydraulic jacks 7a, 7b
Attach the ram 9 to the nuts 2 on the tips of the tension rods 8 and 8 '.
The hydraulic jacks 7a and 7b are connected to the rotary joint 11 which is fixedly connected via the outer cylinder portion 10 by means of
Are configured to slide in the axial direction. Again 2
The base hydraulic jacks 7a and 7b are controlled to operate in synchronization.
【００１８】そして、２基の油圧ジャッキ７ａ、７ｂに
おけるスライドするシリンダ部１０には夫々取付筒１２
が固着され、その両取付筒１２、１２に亘ってチャック
手段１３が連結固定され、更にこのチャック手段１３よ
り下流側（ケーブルの引込み方向）には前記テンション
ロッド８、８’に亘って戻り止用のチャック手段１４が
連結固定され、この両チャック手段１３、１４内を押し
込みシリンダ４を被着したケーブル１が挿通されて橋梁
の主桁２４に設けた支持部２５に案内されるように構成
されている。The mounting cylinders 12 are respectively attached to the sliding cylinder portions 10 of the two hydraulic jacks 7a and 7b.
Is fixed, and the chuck means 13 is connected and fixed over both the mounting cylinders 12, 12, and further downstream of the chuck means 13 (in the cable drawing direction), the detent is stopped over the tension rods 8, 8 '. The chuck means 14 for use in the vehicle is connected and fixed, and the cable 1 with the cylinders 4 attached is pushed through the inside of the chuck means 13 and 14 and guided by the support portion 25 provided on the main girder 24 of the bridge. Has been done.
【００１９】ストローク手段７に連結保持するチャック
手段１３は、押し込みシリンダ４を案内する通孔１５を
開設した案内枠１３ａと、その案内枠１３ａの通孔１５
の軸心と直角に交差する上下方向から通孔１５の中心に
向けて径方向にスライドする上下一対のチャック板１３
ｂとで構成され、その上下一対のチャック板１３ｂは通
孔１５と直角に交差する上下の溝孔１６内にスライド可
能に装着されている。そして、この上下一対のチャック
板１３ｂが通孔１５の中心に向けてスライドすることで
押し込みシリンダ４外周の環状溝で構成された係合手段
５に嵌着係合し、チャック手段１３は押し込みシリンダ
４を挾着保持することになる。上下一対のチャック板１
３ｂは、案内枠１３ａの上面及び下面に設置した油圧シ
リンダ１７で上下スライドするように構成されている。
尚、このチャック板１３ｂは係合手段５の環状溝に嵌合
し得る板厚とする。The chuck means 13 connected and held to the stroke means 7 has a guide frame 13a having a through hole 15 for guiding the pushing cylinder 4, and a through hole 15 of the guide frame 13a.
A pair of upper and lower chuck plates 13 that slide in the radial direction from the vertical direction intersecting at right angles with the axis of
and a pair of upper and lower chuck plates 13b are slidably mounted in upper and lower groove holes 16 intersecting the through hole 15 at a right angle. The pair of upper and lower chuck plates 13b slides toward the center of the through hole 15 to be fitted and engaged with the engaging means 5 formed of an annular groove on the outer circumference of the pushing cylinder 4, and the chuck means 13 is pushed into the pushing cylinder. 4 will be held together. A pair of upper and lower chuck plates 1
3b is configured to slide up and down by hydraulic cylinders 17 installed on the upper and lower surfaces of the guide frame 13a.
The chuck plate 13b has such a thickness that it can be fitted into the annular groove of the engaging means 5.
【００２０】又、上記のチャック手段１３を連結保持す
る取付筒１２は、ストローク手段７の作動により油圧ジ
ャッキ７ａ、７ｂのシリンダ部１０と一緒に軸方向に移
動するが、ストローク手段７がテンションロッド８、
８’の軸心線に沿って直線的にスライドするよう、ケー
ブル１の下方に位置させて支持台１８が設置され、この
支持台１８上をスライドするよう取付筒１２の下面に案
内車輪１９と左右振れ防止枠２０が設けられている。The mounting cylinder 12 for connecting and holding the chuck means 13 moves axially together with the cylinder portion 10 of the hydraulic jacks 7a, 7b by the operation of the stroke means 7, but the stroke means 7 is a tension rod. 8,
A support base 18 is installed below the cable 1 so as to slide linearly along the axis of 8 ′, and a guide wheel 19 is provided on the lower surface of the mounting cylinder 12 so as to slide on the support base 18. A horizontal shake prevention frame 20 is provided.
【００２１】上記の支持台１８は、図１に示すように、
橋梁の主桁上に設置した台枠２１に角度調整用ジャッキ
２２で傾斜角度調整可能に支持され、その支持台１８に
は前記ストローク手段７より下流側（図面ではストロー
ク手段７の左側）に、該ストローク手段７に連結したチ
ャック手段１３から盛り替えて移動された押し込みシリ
ンダ４の戻りを止める戻り止用のチャック手段１４が載
置固定されている。As shown in FIG. 1, the above-mentioned support base 18 is
An angle adjustment jack 22 is supported by an underframe 21 installed on the main girder of the bridge so that the tilt angle can be adjusted, and the support base 18 is downstream of the stroke means 7 (on the left side of the stroke means 7 in the drawing). A detent chuck means 14 for stopping the return of the push-in cylinder 4 which has been moved by exchanging the chuck means 13 connected to the stroke means 7 is fixedly mounted.
【００２２】チャック手段１４は、前記したストローク
手段７の油圧ジャッキに連結したチャック手段１３と同
様、押し込みシリンダ４が挿通される通孔を開設した案
内枠１４ａと、その案内枠１４ａの通孔の軸心と直角に
交差する上下方向から通孔の中心に向けて径方向にスラ
イドする上下一対のチャック板１４ｂとで構成され、そ
の上下一対のチャック板１４ｂは通孔と直角に交差する
上下の溝孔２１内にスライド可能に装着されている。そ
して、上下一対のチャック板１４ｂは、案内枠１４ａの
上面及び下面に設置した油圧シリンダ２１で上下スライ
ドするように構成されている。又、上記チャック手段１
４は前記したチャック手段１３の軸心線上に配置固定す
るが、その取付はテンションロッド８、８’にブラケッ
ト２２をナット２３、２３’で挾着固定し、その両側の
ブラケット２２間に亘ってチャック手段１４が連結固定
される。更に、ブラケット２２は前記した支持台１８に
対しボルト・ナットで固定し、チャック手段１４がガタ
つかないようにしてある。Like the chuck means 13 connected to the hydraulic jack of the stroke means 7, the chuck means 14 has a guide frame 14a having a through hole through which the pushing cylinder 4 is inserted, and a through hole of the guide frame 14a. It is composed of a pair of upper and lower chuck plates 14b that slide in the radial direction from the vertical direction that intersects the axis at right angles toward the center of the through hole, and the pair of upper and lower chuck plates 14b that vertically intersects the through hole. It is slidably mounted in the slot 21. The pair of upper and lower chuck plates 14b are configured to slide up and down by hydraulic cylinders 21 installed on the upper and lower surfaces of the guide frame 14a. Also, the chuck means 1
4 is arranged and fixed on the axial center line of the chuck means 13 described above. For its attachment, the bracket 22 is fixed to the tension rods 8 and 8'by nuts 23 and 23 ', and the brackets 22 on both sides thereof are attached. The chuck means 14 is fixedly connected. Further, the bracket 22 is fixed to the above-mentioned support base 18 with bolts and nuts so that the chuck means 14 does not rattle.
【００２３】上記した引込み装置におけるストローク手
段は、油圧ジャッキの復動により押し込みシリンダを引
込むように構成したが、該油圧ジャッキの配置を変えて
往動により押し込みシリンダをケーブル方向に押込むよ
うにしてもよい。又、ストローク手段と戻り止用のチャ
ック手段の位置関係は、図示した位置関係に限定される
ものでなく、ストローク手段より上流側に戻り止用のチ
ャック手段を配置してもよい。図中、２７は樋状をなし
た押し込みシリンダ受けで、前記したストローク手段７
より上流側に位置して支持台１８の上面に起立固定され
ている。The stroke means in the retracting device described above is configured to retract the pushing cylinder by returning the hydraulic jack, but the arrangement of the hydraulic jack may be changed to push the pushing cylinder in the cable direction by the forward movement. The positional relationship between the stroke means and the detent chuck means is not limited to the illustrated positional relationship, and the detent chuck means may be arranged upstream of the stroke means. In the figure, 27 is a gutter-shaped pushing cylinder receiver, which is the above-mentioned stroke means 7
It is located on the upstream side and is fixed upright on the upper surface of the support base 18.
【００２４】[0024]
【発明の効果】本発明のケーブル引込み方法は請求項１
記載の方法により、ケーブルソケットより上流側でケー
ブルの引込み及び引込んだケーブルの戻り止を行う為、
ケーブルソケットにロッドを連結する必要がなく、しか
もケーブルソケットの後端に突出するロッドが存在しな
い為、橋梁の主桁内部にロッドを収容する為の広い空間
を設ける必要がない。又、ケーブル引込み装置は請求項
２乃至４に記載の構成により、橋梁の上面側で装置の作
動を完了することができる装置を提供できる。更に、請
求項５に記載の構成により、押し込みシリンダの引込み
及び戻り止を確実に行うことができるチャック手段を提
供できる。The cable retracting method of the present invention is described in claim 1.
According to the method described, the cable is pulled in on the upstream side of the cable socket and the detent of the pulled cable is stopped.
It is not necessary to connect the rod to the cable socket, and since there is no rod projecting at the rear end of the cable socket, it is not necessary to provide a wide space for accommodating the rod inside the main girder of the bridge. Further, the cable retracting device can provide the device capable of completing the operation of the device on the upper surface side of the bridge by the configurations described in claims 2 to 4. Further, with the configuration according to the fifth aspect, it is possible to provide the chuck means capable of surely retracting and detenting the push-in cylinder.
【図１】 本発明に係るケーブル引込み装置の一例を示
し、（ａ）はストローク手段の油圧ジャッキが引込み開
始位置に移動した状態の側面図、（ｂ）はストローク手
段がストロークエンドへ移動した状態の側面図である。1 shows an example of a cable retracting device according to the present invention, (a) is a side view of a state where a hydraulic jack of a stroke means is moved to a retracting start position, and (b) is a state where a stroke means is moved to a stroke end. FIG.
【図２】 （ａ）は図１（ａ）の一部切欠平面図、
（ｂ）は図１（ｂ）の一部切欠平面図である。2 (a) is a partially cutaway plan view of FIG. 1 (a),
1B is a partially cutaway plan view of FIG.
【図３】 図１（ｂ）の（３）−（３）線に沿える拡大
断面図で、（ａ）はチャック手段のチャック板が閉じ方
向に作動して押し込みシリンダの係合手段に係合した状
態、（ｂ）はチャック手段のチャック板が開き方向に作
動して押し込みシリンダの係合手段から外れた状態を示
す。FIG. 3 is an enlarged cross-sectional view taken along line (3)-(3) of FIG. 1B, where FIG. 3A shows the engaging plate engaging means of the pushing cylinder when the chuck plate of the chucking means operates in the closing direction. The combined state, (b), shows the state in which the chuck plate of the chuck means operates in the opening direction and is disengaged from the engaging means of the pushing cylinder.
【図４】 図１（ｂ）の（４）−（４）線に沿える拡大
断面図である。FIG. 4 is an enlarged cross-sectional view taken along line (4)-(4) of FIG. 1 (b).
１…ケーブル ２…ソケット
４…押し込みシリンダ ５…係合手段
７…ストローク手段 ７ａ、７ｂ…油圧ジャッキ
８、８’…テンションロッド １３、１４…チャッ
ク手段
１３ａ、１４ａ…案内枠 １３ｂ、１４ｂ…
チャック板DESCRIPTION OF SYMBOLS 1 ... Cable 2 ... Socket 4 ... Push-in cylinder 5 ... Engaging means 7 ... Stroke means 7a, 7b ... Hydraulic jacks 8, 8 '... Tension rod 13, 14 ... Chuck means 13a, 14a ... Guide frame 13b, 14b ...
Chuck plate
フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) E01D 19/10 - 19/16 E01D 11/00 Continuation of front page (58) Fields surveyed (Int.Cl. 7 , DB name) E01D 19/10-19/16 E01D 11/00
Claims (5)
ーブル引込み方法であって、ケーブルの引き込み方向端
部に定着部を備えたソケットを固着し、そのケーブルの
外側に、軸方向に沿って係合手段を一定間隔毎に形成し
た押し込みシリンダを被着固定し、この押し込みシリン
ダの係合手段を利用して、ケーブルの引込み方向に沿っ
て一定距離引込み、その引き込み終端位置で該押し込み
シリンダの係合手段に固定のチャック手段を係合させて
押し込みシリンダの戻りを止め、他方、引き込み時のチ
ャック手段を解放して盛り替え、この引き込みとチャッ
ク手段による係脱の盛り替え動作を繰り返して前記押し
込みシリンダをケーブル引込み方向に引込むことを特徴
とするケーブル引込み方法。1. A cable pull-in method for tensioning a suspension cable for a bridge, comprising fixing a socket provided with a fixing portion to an end portion of the cable in a pull-in direction, the outer side of the cable extending along the axial direction. Push-in cylinders having engaging means formed at regular intervals are adhered and fixed, and the engaging means of the push-in cylinders are used to pull in a fixed distance along the pull-in direction of the cable, and at the pull-in end position of the push-in cylinders. The fixed chuck means is engaged with the engaging means to stop the return of the pushing cylinder, while the chuck means at the time of retraction is released to be refilled, and the refilling operation of pulling and engaging / disengaging by the chuck means is repeated. A cable retraction method characterized in that the pushing cylinder is retracted in the cable retraction direction.
ーブル引込み装置であって、ケーブルの引き込み方向端
部に定着部を備えたソケットを固着し、そのケーブルの
外側に、軸方向に沿って係合手段を一定間隔毎に形成し
た押し込みシリンダを被着固定し、他方、橋梁上に位置
する固定部材に、前記押し込みシリンダの係合手段と係
脱するチャック手段を連結保持したストローク手段と、
そのストローク手段の作動で所定量移動された押し込み
シリンダを移動位置に定着保持する戻り止用のチャック
手段を取り付けたことを特徴とするケーブル引込み装
置。2. A cable retracting device for tensioning a suspension cable for a bridge, wherein a socket having a fixing portion is fixed to an end portion of the cable in the retracting direction, and the cable is attached to the outside of the cable along the axial direction. Stroke means for fixing and pushing push-in cylinders having engaging means formed at regular intervals, and on the other hand, a fixing member located on the bridge, in which chuck means for engaging and disengaging with the engaging means of the push-in cylinder are connected and held,
A cable retracting device comprising detent chuck means for fixing and holding a pushing cylinder, which is moved by a predetermined amount by the operation of the stroke means, at a moving position.
手段が、軸方向に沿って一定間隔毎に形成した環状溝で
ある請求項２記載のケーブル引込み装置。3. The cable retracting device according to claim 2, wherein the engaging means formed on the pushing cylinder is an annular groove formed at regular intervals along the axial direction.
ダの軸心と平行ならしめて該押し込みシリンダの両側に
配置した２基の油圧ジャッキで構成され、その油圧ジャ
ッキは、橋梁の支持部に後部を固定し先部を橋梁上に突
出させた2本の平行なテンションロッドの先部に連結固
定されている請求項２記載のケーブル引込み装置。4. The stroke means is composed of two hydraulic jacks arranged on both sides of the pushing cylinder so as to be parallel to the axis of the pushing cylinder, the hydraulic jacks having a rear portion fixed to a support portion of a bridge. The cable retracting device according to claim 2, wherein the front ends of the two parallel tension rods projecting above the bridge are fixedly connected to the front ends.
ャック手段と、2本のテンションロッドに亘って固定し
た戻り止用のチャック手段が、押し込みシリンダを案内
する通孔を開穿した案内枠と、その案内枠の軸心と交差
する方向から径方向にスライドして押し込みシリンダの
環状溝に嵌脱するチャック板とで構成され、且つ前記チ
ャック板が油圧シリンダで作動されることを特徴とする
請求項２記載のケーブル引込み装置。5. A chuck means connected and held to the stroke means, a detent chuck means fixed over two tension rods, and a guide frame having a through hole for guiding the pushing cylinder, And a chuck plate that slides in a radial direction from a direction intersecting the axis of the guide frame and is fitted into and removed from the annular groove of the pressing cylinder, and the chuck plate is operated by a hydraulic cylinder. Item 2. The cable retractor according to item 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000162832A JP3520029B2 (en) | 2000-05-31 | 2000-05-31 | Cable retracting method and retracting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000162832A JP3520029B2 (en) | 2000-05-31 | 2000-05-31 | Cable retracting method and retracting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001342610A JP2001342610A (en) | 2001-12-14 |
| JP3520029B2 true JP3520029B2 (en) | 2004-04-19 |
Family
ID=18666683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000162832A Expired - Lifetime JP3520029B2 (en) | 2000-05-31 | 2000-05-31 | Cable retracting method and retracting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3520029B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007198116A (en) * | 2005-12-26 | 2007-08-09 | Jfe Koken Corp | Primary push-in method and device for hanging cable, and push-in method and device for hanging cable |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5039080B2 (en) * | 2009-03-24 | 2012-10-03 | 株式会社Ｉｈｉインフラシステム | Cable end tension releasing method and cable clamp device used for carrying out the method |
-
2000
- 2000-05-31 JP JP2000162832A patent/JP3520029B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007198116A (en) * | 2005-12-26 | 2007-08-09 | Jfe Koken Corp | Primary push-in method and device for hanging cable, and push-in method and device for hanging cable |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2001342610A (en) | 2001-12-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4650384A (en) | Expansion anchor | |
| JP4726618B2 (en) | Tape holding device | |
| JP3520029B2 (en) | Cable retracting method and retracting device | |
| US4770581A (en) | Expansion anchor | |
| JP2005139835A (en) | Cable pulling-in, tensioning and fixing construction method and cable pulling-in device used therefor | |
| US20140048249A1 (en) | Guide device for coiled tubing | |
| KR100634097B1 (en) | Preloading jack | |
| JP6433938B2 (en) | Anchor unloading jig and forced unloading method | |
| JP2727533B2 (en) | Tension introduction device for bridge suspension cable | |
| JP2019073391A (en) | Telescopic boom | |
| WO2009072770A2 (en) | An extension mechanism of the spindle member for the machine tool | |
| JP2000102152A (en) | Vernier metal fitting and method of adjusting slackness of aerial transmission line using the same | |
| JP2578087B2 (en) | Reaction force device for heavy object moving device | |
| CN213477635U (en) | U-shaped jacking support with side baffle capable of being debugged | |
| JPS61257723A (en) | Extracting and extruding device of pipe bundle | |
| CN216464210U (en) | Frock shape location structure of preapring for an unfavorable turn of events | |
| JP2982983B2 (en) | Roll chock and its rearrangement device | |
| JP2024080908A (en) | Car stopper | |
| JP2007198116A (en) | Primary push-in method and device for hanging cable, and push-in method and device for hanging cable | |
| CN220213737U (en) | Safety belt tying and hanging device for indoor high-altitude operation | |
| JPH10266123A (en) | Jack and tool for tension of cable | |
| JPH08282454A (en) | Wheel stopper wedge fixing method and fixture therefor | |
| JP3482314B2 (en) | Hydraulic shock absorber return test equipment | |
| JPH084315A (en) | Balustrade support equipped with temporary fixed metal fixture | |
| JPH087127Y2 (en) | Guide clamp device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| TRDD | Decision of grant or rejection written | ||
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20040130 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 3520029 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090206 Year of fee payment: 5 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090206 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100206 Year of fee payment: 6 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100206 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110206 Year of fee payment: 7 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110206 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120206 Year of fee payment: 8 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130206 Year of fee payment: 9 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140206 Year of fee payment: 10 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |