JPH07128047A - Apparatus for measuring dimensions of crosstie - Google Patents

Apparatus for measuring dimensions of crosstie

Info

Publication number
JPH07128047A
JPH07128047A JP27433593A JP27433593A JPH07128047A JP H07128047 A JPH07128047 A JP H07128047A JP 27433593 A JP27433593 A JP 27433593A JP 27433593 A JP27433593 A JP 27433593A JP H07128047 A JPH07128047 A JP H07128047A
Authority
JP
Japan
Prior art keywords
sleeper
rail
support arm
vehicle
measurement point
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.)
Pending
Application number
JP27433593A
Other languages
Japanese (ja)
Inventor
Hiroya Fujinawa
比呂也 藤縄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sekisui Chemical Co Ltd
Original Assignee
Sekisui Chemical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sekisui Chemical Co Ltd filed Critical Sekisui Chemical Co Ltd
Priority to JP27433593A priority Critical patent/JPH07128047A/en
Publication of JPH07128047A publication Critical patent/JPH07128047A/en
Pending legal-status Critical Current

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Landscapes

  • Machines For Laying And Maintaining Railways (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)

Abstract

PURPOSE:To provide an apparatus for measuring specified dimensions of a crosstie accurately. CONSTITUTION:A vehicle 1 supports a supporting arm 2, at one end thereof, rotatably around a rotary shaft 3 on a plane intersecting a rail R perpendicularly to the longitudinal direction thereof and, at the other end thereof, through a damper 4 wherein the supporting arm 2 is provided with a supporting rod 9 equipped with a vertical cylinder 10 such that the supporting arm 2 can be held in parallel with the upper face of a crosstie M. On the other hand, an ultrasonic sensor 8 for detecting a measuring point set on the crosstie M is disposed slidingly in the longitudinal direction of the supporting arm 2 through a timing belt 5 and a motor 6. A controller 13 includes a circuit for operating the distance L0 between the ultrasonic sensor 8 and the side face at the head part of the rail R by subtracting the distance L2 between the eddy current sensor 12 and the side face at the head part of the rail R from the distance L1 between an eddy current sensor 12 and the ultrasonic sensor 8 calculated based on the driving amount of the motor 6.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、枕木の所定寸法を測定
する測定装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a measuring device for measuring a predetermined size of sleepers.

【0002】[0002]

【従来の技術】鉄道における種々の測定作業は、非常に
危険を伴うため、近年では、これを自動化するために、
車両をレールの上で走行させながら所定の測定を行なう
測定装置が提案されている。
2. Description of the Related Art Since various measuring operations on railways are extremely dangerous, in recent years, in order to automate them,
2. Description of the Related Art There has been proposed a measuring device that performs a predetermined measurement while a vehicle travels on a rail.

【0003】例えば、車両に誘導磁界放射面を取り付
け、この誘導磁界放射面をレールに向けて走行すること
によりレール遊間を測定するものや(特開昭52−15
4647号公報参照)、車両に超音波センサを取り付
け、この超音波センサをレールに密着させて走行するこ
とにより、レール内を反射する超音波によって所定の軌
道断面寸法を測定するものや(特開平2−225702
号公報参照)、車両に渦電流式磁気センサを取り付け、
この渦電流式磁気センサをレールに近接させて走行する
ことによりレール遊間を測定するもの(特公平4−84
号公報参照)がその例である。
For example, a method in which a guide magnetic field emitting surface is attached to a vehicle and the rail clearance is measured by running the guide magnetic field emitting surface toward a rail (Japanese Patent Laid-Open No. 52-15).
No. 4647), an ultrasonic sensor is mounted on a vehicle, and the ultrasonic sensor is run in close contact with a rail to measure a predetermined track cross-sectional dimension by ultrasonic waves reflected in the rail. 2-225702
), Attach an eddy current type magnetic sensor to the vehicle,
This eddy current type magnetic sensor measures the rail clearance by running close to the rail (Japanese Patent Publication No.
(See Japanese Patent Publication) is an example.

【0004】ところで、レールの上を走行可能な車両
に、超音波センサや電磁波センサなどのセンサを取り付
け、このセンサを枕木に沿って移動させることにより、
枕木上に設定した測定点の位置を検出し、その測定点の
位置に基づいて枕木の所定寸法を測定できるようにする
ことが考えられる。
By the way, by attaching a sensor such as an ultrasonic sensor or an electromagnetic wave sensor to a vehicle that can run on a rail and moving the sensor along the sleeper,
It is conceivable to detect the position of the measurement point set on the sleeper and measure the predetermined dimension of the sleeper based on the position of the measurement point.

【0005】[0005]

【発明が解決しようとする課題】しかしながら、上記測
定装置では、車両に取り付けられたセンサを枕木の上面
に対して常に平行に移動させなければ測定点の位置を正
確に測定することができないのにもかかわらず、枕木の
上面と車両との関係を常に一定に保つのは困難である。
特に、レールがカーブして敷設されている部分では、枕
木の上面が傾斜しており、枕木の上面の傾きと車両の傾
きとが一致しないことがほとんどである。従って、測定
点の位置を常に正確に検出できるものではないので、測
定精度が低いという問題が残される。
However, in the above measuring device, the position of the measuring point cannot be accurately measured unless the sensor attached to the vehicle is always moved parallel to the upper surface of the sleeper. Nevertheless, it is difficult to maintain a constant relationship between the top surface of the sleepers and the vehicle.
In particular, in the portion where the rail is curved and installed, the upper surface of the sleeper is inclined, and in most cases, the inclination of the upper surface of the sleeper and the inclination of the vehicle do not match. Therefore, the position of the measurement point cannot always be detected accurately, and the problem of low measurement accuracy remains.

【0006】そこで、本発明は、上記のような問題に着
目し、枕木の所定寸法を高い精度で測定することができ
る測定装置を提供することを目的としている。
In view of the above problems, an object of the present invention is to provide a measuring device capable of measuring a predetermined size of a sleeper with high accuracy.

【0007】[0007]

【課題を解決するための手段】上記目的を達成するため
に、本発明の枕木寸法の測定装置では、レールの上を走
行可能な車両に、支持アームが少なくともレールの長手
方向に直交する面上で回動方向を含む方向に移動可能に
支持され、この支持アームに、支持アームを枕木の上面
に対して平行な状態に保持可能な平行保持機構が設けら
れていると共に、枕木上に設定された測定点の位置を非
接触状態で検出する測定点検出センサが支持アームの長
手方向に沿って摺動可能に設けられ、前記測定点検出セ
ンサが測定した測定点の位置に基づいて枕木の所定寸法
を演算する演算回路が、前記車両に搭載されている構成
とした。
In order to achieve the above object, in the sleeper size measuring apparatus of the present invention, a support arm is provided on a vehicle which can travel on a rail, at least on a plane orthogonal to the longitudinal direction of the rail. Is supported so as to be movable in a direction including a rotation direction, and the support arm is provided with a parallel holding mechanism capable of holding the support arm in a state parallel to the upper surface of the sleeper and is set on the sleeper. A measurement point detection sensor for detecting the position of the measurement point in a non-contact state is provided slidably along the longitudinal direction of the support arm, and a predetermined sleeper is determined based on the position of the measurement point measured by the measurement point detection sensor. An arithmetic circuit for calculating the dimensions is mounted on the vehicle.

【0008】[0008]

【作用】枕木の所定寸法を測定する場合には、まず、車
両をレールの上に設置させ、所定の測定位置まで走行さ
せて停止する。
When measuring the predetermined size of the sleepers, first, the vehicle is installed on the rails, traveled to the predetermined measurement position, and stopped.

【0009】次に、平行保持機構によって支持アームを
枕木の上面と平行な状態に保持させる。ここで、枕木の
上面がほぼ水平であって、車両が傾いていない場合に
は、支持アームもほぼ水平な状態が保たれたまま枕木の
上面と平行になる。一方、枕木の上面が傾いていて、枕
木の上面の傾きと車両の傾きとが一致していない場合に
は、支持アームは、枕木の上面の傾きと車両の傾きとの
差を吸収する角度だけ回動方向に移動した状態で枕木の
上面と平行になる。
Next, the support arm is held parallel to the upper surface of the sleeper by the parallel holding mechanism. Here, when the upper surface of the sleeper is substantially horizontal and the vehicle is not tilted, the support arm is also parallel to the upper surface of the sleeper while keeping the substantially horizontal state. On the other hand, when the top surface of the sleeper is tilted and the tilt of the top surface of the sleeper and the tilt of the vehicle do not match, the support arm has an angle that absorbs the difference between the tilt of the top surface of the sleeper and the tilt of the vehicle. It becomes parallel to the upper surface of the sleeper when moved in the direction of rotation.

【0010】次に、支持アームの長手方向に沿って測定
点検出センサを摺動させながら、枕木上に設定された測
定点の位置を検出する。
Next, the position of the measuring point set on the sleeper is detected while sliding the measuring point detecting sensor along the longitudinal direction of the support arm.

【0011】そして、その測定点の位置に基づいて演算
回路によって枕木の所定寸法を測定する。
Then, a predetermined size of the sleeper is measured by an arithmetic circuit based on the position of the measuring point.

【0012】上記作業が終了したら、車両を次の測定位
置まで移動させて、同様の作業を反復する。
When the above work is completed, the vehicle is moved to the next measurement position and the same work is repeated.

【0013】[0013]

【実施例】まず、図1〜図3に基づいて、実施例の枕木
寸法の測定装置の構成を説明する。
EXAMPLE First, the construction of a sleeper size measuring apparatus of an example will be described with reference to FIGS.

【0014】本実施例の測定装置は、図3に示すよう
に、レールRの上を走行可能な車両1を有している。
As shown in FIG. 3, the measuring apparatus of this embodiment has a vehicle 1 which can run on a rail R.

【0015】この車両1には、図1ならびに図2に示す
ように、支持アーム2の一端が、回動軸3を中心にレー
ルRの長手方向に直交する面上で回動可能に支持されて
いると共に、支持アーム2の他端が、ダンパ4を介して
支持されている。なお、前記ダンパ4は、支持アーム2
の回動を妨げないように車両1に対して揺動可能に取り
付けられている。
In this vehicle 1, as shown in FIGS. 1 and 2, one end of a support arm 2 is supported rotatably on a plane orthogonal to the longitudinal direction of the rail R about a rotation shaft 3. In addition, the other end of the support arm 2 is supported via the damper 4. The damper 4 is used for the support arm 2
It is swingably attached to the vehicle 1 so as not to hinder the rotation of the vehicle.

【0016】また、この支持アーム2には、タイミング
ベルト5ならびに、このタイミングベルト5を駆動する
モーター6を介して、スキャナアーム7が支持アーム2
の長手方向に摺動可能に設けられている。このスキャナ
アーム7の先端には、枕木Mの上面に超音波を放出する
ことによって枕木M上に設定された測定点の位置を非接
触状態で検出する超音波センサ8(特許請求の範囲の測
定点検出センサに対応する)が固定されている。
A scanner arm 7 is mounted on the support arm 2 via a timing belt 5 and a motor 6 for driving the timing belt 5.
Is provided so as to be slidable in the longitudinal direction. An ultrasonic sensor 8 for detecting the position of a measurement point set on the sleeper M in a non-contact state at the tip of the scanner arm 7 by emitting ultrasonic waves to the upper surface of the sleeper M (measurement in claims). (Corresponding to the point detection sensor) is fixed.

【0017】更に、この支持アーム2には、シリンダ9
を上下2か所に備えた支持ロッド10が、支持アーム2
と直角に垂下されている。この支持ロッド10は、支持
アーム2の長手方向に離間した位置に2本設けられてお
り、一方の支持ロッド10に設けられているシリンダ9
をストロークするピストンロッド11と、他方の支持ロ
ッド10に設けられているシリンダ9をストロークする
ピストンロッド11とで、レールRの頭部と首部とをそ
れぞれ把持した時に、支持アーム2を枕木Mの上面に対
して平行な状態に保持できるようになっている。すなわ
ち、この支持ロッド10とシリンダ9とで、特許請求の
範囲に記載の平行保持機構が構成されていることにな
る。また、前記支持アーム2には、レールの頭部の側面
までの距離を検出する渦電流センサ12が設けられてい
る。
Further, the support arm 2 is provided with a cylinder 9
The support rod 10 provided with two upper and lower parts
Is hanging at a right angle. Two support rods 10 are provided at positions spaced apart from each other in the longitudinal direction of the support arm 2, and a cylinder 9 provided on one support rod 10 is provided.
When the head of the rail R and the neck of the rail R are gripped by the piston rod 11 that strokes and the piston rod 11 that strokes the cylinder 9 provided on the other support rod 10, the support arm 2 moves toward the sleeper M. It can be held parallel to the top surface. That is, the support rod 10 and the cylinder 9 constitute the parallel holding mechanism described in the claims. Further, the support arm 2 is provided with an eddy current sensor 12 for detecting the distance to the side surface of the head of the rail.

【0018】また、前記車両1には、超音波センサ8
が、枕木Mの上に設定された測定点Aの位置を検出した
時に、スキャナアーム7を摺動させているモーター6の
駆動量から、支持アーム2に設けられている渦電流セン
サ12とスキャナアーム7に設けられている超音波セン
サ8間の距離L1を算出し、その距離L1 から渦電流セ
ンサ12が検出した渦電流センサ12とレールRの頭部
の側面間の距離L2 を差し引いて、超音波センサ8とレ
ールRの頭部の側面間の距離L0 を演算する演算回路を
有するコントローラ13が搭載されている。
The vehicle 1 has an ultrasonic sensor 8
When the position of the measurement point A set on the sleeper M is detected, the eddy current sensor 12 provided on the support arm 2 and the scanner are determined based on the driving amount of the motor 6 sliding the scanner arm 7. calculates the distance L1 between the ultrasonic sensor 8 provided in the arm 7, by subtracting the distance L 2 between the head side of its distance L 1 eddy current sensor 12 the eddy current sensor 12 detects from the rail R A controller 13 having an arithmetic circuit for calculating the distance L 0 between the ultrasonic sensor 8 and the side surface of the head of the rail R is mounted.

【0019】次に、図1ならびに図2に基づいて、枕木
Mの上面の点A(枕木Mを支持しているベース14の外
側面を枕木Mの上面に対して直角に延長させた点)から
点B(レールRの頭部の側面を枕木Mの上面に対して直
角に延長させた点)までの寸法Lを測定する場合を例に
とり、その作業手順を説明する。
Next, based on FIGS. 1 and 2, a point A on the upper surface of the sleeper M (a point where the outer surface of the base 14 supporting the sleeper M is extended at a right angle to the upper surface of the sleeper M). To the point B (the point where the side surface of the head of the rail R extends at a right angle to the upper surface of the sleeper M) is taken as an example, and the working procedure thereof will be described.

【0020】まず、車両1をレールRの上に設置させ、
測定したい枕木Mの位置まで走行させて停止する。
First, the vehicle 1 is installed on the rail R,
Travel to the position of the sleeper M you want to measure and stop.

【0021】次に、支持ロッド10に設けられているシ
リンダ9のピストンロッド11でレールRの頭部と首部
とをそれぞれ把持し、支持アーム2を枕木Mの上面に対
して平行な状態に保持させる。
Next, the head and neck of the rail R are respectively gripped by the piston rod 11 of the cylinder 9 provided on the support rod 10, and the support arm 2 is held parallel to the upper surface of the sleeper M. Let

【0022】ここで、枕木Mの上面がほぼ水平であっ
て、車両1が傾いていない場合には、図1に示すよう
に、支持アーム2もほぼ水平な状態が保たれたまま枕木
Mの上面と平行になる。
Here, when the upper surface of the sleeper M is substantially horizontal and the vehicle 1 is not tilted, as shown in FIG. 1, the support arm 2 is also kept substantially horizontal and the sleeper M is kept horizontal. It will be parallel to the top surface.

【0023】一方、枕木Mの上面が傾いていて、枕木M
の上面の傾きと車両1の傾きとが一致していない場合に
は、図2に示すように、支持アーム2は、枕木Mの上面
の傾きと車両1の傾きとの差を吸収する角度だけ回動軸
3を中心に下方へ回動した状態で枕木Mの上面と平行に
なる。
On the other hand, since the upper surface of the sleeper M is inclined,
When the inclination of the upper surface of the vehicle 1 and the inclination of the vehicle 1 do not match, as shown in FIG. 2, the support arm 2 has an angle that absorbs the difference between the inclination of the upper surface of the sleeper M and the inclination of the vehicle 1. It is parallel to the upper surface of the sleeper M in a state of being rotated downward about the rotation shaft 3.

【0024】次に、点Aを測定点として設定し、超音波
を放出させながら超音波センサ8をモーター6の駆動に
より支持アーム2の長手方向に沿って摺動させ、点Aの
位置を検出する。超音波センサ8が点Aの位置を検出す
ると、コントローラ13に設けられている演算回路が、
超音波センサ8とレールRの頭部の側面間の距離L0
演算するので、枕木Mの上面の点Aから点Bまでの寸法
が解る。
Next, the point A is set as a measurement point, and the ultrasonic sensor 8 is slid along the longitudinal direction of the support arm 2 by driving the motor 6 while emitting ultrasonic waves to detect the position of the point A. To do. When the ultrasonic sensor 8 detects the position of the point A, the arithmetic circuit provided in the controller 13
Since the distance L 0 between the ultrasonic sensor 8 and the side surface of the head of the rail R is calculated, the dimension from the point A to the point B on the upper surface of the sleeper M can be known.

【0025】上記作業が終了したら、車両1を次の測定
位置まで移動させて、同様の作業を反復する。
When the above work is completed, the vehicle 1 is moved to the next measurement position and the same work is repeated.

【0026】つまり、本実施例の枕木寸法の測定装置に
あっては、枕木Mの上面と車両1との関係が一定に保た
れていなくても、超音波センサ8が常に枕木Mの上面に
対して平行に移動することによって枕木M上に設定され
た測定点の位置を正確に検出するので、枕木Mの所定寸
法を高い精度で測定することができる。
That is, in the sleeper size measuring apparatus of this embodiment, the ultrasonic sensor 8 is always on the upper surface of the sleeper M even if the relationship between the upper surface of the sleeper M and the vehicle 1 is not kept constant. Since the position of the measurement point set on the sleeper M is accurately detected by moving the sleeper M in parallel, the predetermined size of the sleeper M can be measured with high accuracy.

【0027】以上、本発明の実施例を図面により詳述し
てきたが、具体的な構成はこの実施例に限られるもので
はなく、本発明の要旨を逸脱しない範囲における設計の
変更等があっても本発明に含まれる。例えば、実施例で
は、車両に、支持アームの一端が回動軸を中心にレール
の長手方向に直交する面上で回動可能に支持されている
と共に、支持アームの他端がダンパを介して支持されて
いる例を示したが、支持アームは、少なくともレールの
長手方向に直交する面上で回動方向を含む方向に移動可
能であれば、両端をダンパを介して支持させるなどして
もよい。また、実施例では、測定点検出センサとして超
音波センサを使用した例を示したが、枕木上の測定点を
非接触状態で検出できるものであれば、レーザーセン
サ、渦電流センサ、電磁波センサ、赤外線センサなどを
使用してもよい。更に、平行保持機構として、シリンダ
のピストンでレールを把持する構造のものを示したが、
平行保持機構は、支持アームを枕木の上面に対して平行
な状態に保持可能なレールの表面形状に沿った治具を押
し当てる構造のものや、車両の走行時にはレールに沿っ
てローラーが回動する構造のものを使用してもよい。
Although the embodiment of the present invention has been described in detail above with reference to the drawings, the specific structure is not limited to this embodiment, and there are design changes and the like within a range not departing from the gist of the present invention. Also included in the present invention. For example, in the embodiment, the vehicle has one end of the support arm rotatably supported on a plane orthogonal to the longitudinal direction of the rail about the rotation axis, and the other end of the support arm via the damper. Although an example in which the support arm is supported is shown, the support arm may be supported at both ends via a damper as long as it can be moved at least on a plane orthogonal to the longitudinal direction of the rail in a direction including a rotation direction. Good. Further, in the embodiment, an example using an ultrasonic sensor as a measurement point detection sensor is shown, but a laser sensor, an eddy current sensor, an electromagnetic wave sensor, as long as it can detect the measurement point on the sleeper in a non-contact state, An infrared sensor or the like may be used. Further, as the parallel holding mechanism, the structure in which the rail of the cylinder is grasped by the piston is shown.
The parallel holding mechanism has a structure that presses a jig along the surface shape of the rail that can hold the support arm in parallel with the upper surface of the sleeper, or the roller rotates along the rail when the vehicle is running. You may use the thing of the structure.

【0028】[0028]

【発明の効果】以上説明したように、本発明の枕木寸法
の測定装置にあっては、枕木の上面と車両との関係が一
定に保たれていなくても、測定点検出センサが常に枕木
の上面に対して平行に移動することによって枕木上に設
定された測定点の位置を正確に検出するので、枕木の所
定寸法を高い精度で測定することができるという効果が
得られる。
As described above, in the sleeper size measuring device of the present invention, the measurement point detection sensor is always provided on the sleeper even if the relationship between the upper surface of the sleeper and the vehicle is not kept constant. Since the position of the measurement point set on the sleeper is accurately detected by moving in parallel to the upper surface, it is possible to obtain an effect that the predetermined dimension of the sleeper can be measured with high accuracy.

【図面の簡単な説明】[Brief description of drawings]

【図1】実施例の枕木寸法の測定装置の要部を示す正面
図である。
FIG. 1 is a front view showing a main part of a sleeper size measuring apparatus according to an embodiment.

【図2】実施例の枕木寸法の測定装置が傾斜した状態を
示す図である。
FIG. 2 is a diagram showing a state where the sleeper size measuring device of the embodiment is inclined.

【図3】実施例の枕木寸法の測定装置の外観図である。FIG. 3 is an external view of the sleeper size measuring device of the embodiment.

【符号の説明】[Explanation of symbols]

1 車両 2 支持アーム 5 タイミングベルト 6 モーター 8 超音波センサ(測定点検出センサ) 9 支持ロッド(平行保持機構) 10 シリンダ(平行保持機構) 13 コントローラ M 枕木 R レール 1 Vehicle 2 Support Arm 5 Timing Belt 6 Motor 8 Ultrasonic Sensor (Measurement Point Detection Sensor) 9 Support Rod (Parallel Holding Mechanism) 10 Cylinder (Parallel Holding Mechanism) 13 Controller M Sleeper R Rail

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 レールの上を走行可能な車両に、支持ア
ームが少なくともレールの長手方向に直交する面上で回
動方向を含む方向に移動可能に支持され、この支持アー
ムに、支持アームを枕木の上面に対して平行な状態に保
持可能な平行保持機構が設けられていると共に、枕木上
に設定された測定点の位置を非接触状態で検出する測定
点検出センサが支持アームの長手方向に沿って摺動可能
に設けられ、前記測定点検出センサが測定した測定点の
位置に基づいて枕木の所定寸法を演算する演算回路が、
前記車両に搭載されていることを特徴とする枕木寸法の
測定装置。
1. A vehicle capable of traveling on a rail has a support arm movably supported in at least a plane orthogonal to a longitudinal direction of the rail in a direction including a rotation direction. The support arm is provided with the support arm. A parallel holding mechanism that can hold the sleeper parallel to the upper surface is provided, and a measurement point detection sensor that detects the position of the measurement point set on the sleeper in a non-contact state is provided in the longitudinal direction of the support arm. An arithmetic circuit that is slidably provided along the line and that calculates a predetermined dimension of the sleeper based on the position of the measurement point measured by the measurement point detection sensor,
An apparatus for measuring a sleeper size, which is mounted on the vehicle.
JP27433593A 1993-11-02 1993-11-02 Apparatus for measuring dimensions of crosstie Pending JPH07128047A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP27433593A JPH07128047A (en) 1993-11-02 1993-11-02 Apparatus for measuring dimensions of crosstie

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP27433593A JPH07128047A (en) 1993-11-02 1993-11-02 Apparatus for measuring dimensions of crosstie

Publications (1)

Publication Number Publication Date
JPH07128047A true JPH07128047A (en) 1995-05-19

Family

ID=17540230

Family Applications (1)

Application Number Title Priority Date Filing Date
JP27433593A Pending JPH07128047A (en) 1993-11-02 1993-11-02 Apparatus for measuring dimensions of crosstie

Country Status (1)

Country Link
JP (1) JPH07128047A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101409257B1 (en) * 2012-09-14 2014-06-18 한국철도공사 Hight checking device of concrete sleeper
CN104374355A (en) * 2014-11-29 2015-02-25 江西洪都航空工业集团有限责任公司 Device and method for measuring displacement of driver control gear

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS539837U (en) * 1976-07-09 1978-01-27

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS539837U (en) * 1976-07-09 1978-01-27

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101409257B1 (en) * 2012-09-14 2014-06-18 한국철도공사 Hight checking device of concrete sleeper
CN104374355A (en) * 2014-11-29 2015-02-25 江西洪都航空工业集团有限责任公司 Device and method for measuring displacement of driver control gear

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