JP4040017B2 - Current collector boat for vehicles - Google Patents
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- JP4040017B2 JP4040017B2 JP2003398657A JP2003398657A JP4040017B2 JP 4040017 B2 JP4040017 B2 JP 4040017B2 JP 2003398657 A JP2003398657 A JP 2003398657A JP 2003398657 A JP2003398657 A JP 2003398657A JP 4040017 B2 JP4040017 B2 JP 4040017B2
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 16
- 229910052802 copper Inorganic materials 0.000 claims description 16
- 239000010949 copper Substances 0.000 claims description 16
- 238000005304 joining Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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Description
本発明は、車両用パンタグラフの集電舟に関する。 The present invention relates to a current collector boat for a pantograph for a vehicle.
車両用集電舟は、パンタグラフの枠組み最上部に取着されており、架線から車両内に電力を取り込むため、架線に摺接しながら集電するものである。従って、円滑な集電のためには集電舟が架線変位に追従する必要がある。集電舟の架線への追従性能は、集電舟体の質量を低減することで向上する。架線と直接摺接する集電舟の構成部品であるすり板を多くに分割し、架線より加振されて運動するすり板の質量を小さくし、追従性能を向上させる方法があるが、様々な問題があり実用には至っていない。
また、高速車両用の集電舟は、電車の走行に伴う走行風の流速が高くなるため、揚力特性が追従性能にも大きく影響するため、適切な集電舟の形状とする事が必要である。そして近年は、環境への配慮から、空力騒音の低減が求められている。
The vehicle current collector boat is attached to the uppermost part of the pantograph frame, and collects power while being in sliding contact with the overhead line in order to take in power from the overhead line into the vehicle. Therefore, it is necessary for the current collecting boat to follow the overhead line displacement for smooth current collection. The tracking performance of the current collector boat to the overhead line is improved by reducing the mass of the current collector boat body. There are methods to improve the tracking performance by dividing the sliding plate, which is a component of the current collector boat that is in direct sliding contact with the overhead wire, to reduce the mass of the sliding plate that is vibrated by the overhead wire and moving. There is no practical use.
In addition, current collector boats for high-speed vehicles have a higher current flow rate due to train travel, so the lift characteristics greatly affect the tracking performance, so it is necessary to make the current collector boat an appropriate shape. is there. In recent years, reduction of aerodynamic noise has been demanded in consideration of the environment.
従来の多数に分割したすり板を有する集電舟の構造の一例を図４〜図６に示す。図４は集電舟を長手方向に直交する方向から見た図、図５は、図４のＡ−Ａ断面図、図６は、図４のＢ−Ｂ断面図である。
可撓性シート３は、耐アーク性を有する可撓性のある材質からなり、図５に示すように、舟体を被包する形状をしており、その上面には図４に示すように複数個のすり板小片１が長手方向に並べられ、下面には銅板４をはさんで一定の間隔をもって締着され、可撓性シート３とすり板小片１、銅板４は一体となっている。
An example of the structure of the current collector boat which has the conventional sliding board divided | segmented into many is shown in FIGS. 4 is a view of the current collecting boat viewed from a direction perpendicular to the longitudinal direction, FIG. 5 is a cross-sectional view taken along line AA in FIG. 4, and FIG. 6 is a cross-sectional view taken along line BB in FIG.
The flexible sheet 3 is made of a flexible material having arc resistance, and has a shape for enveloping the hull as shown in FIG. 5, and the upper surface thereof is shown in FIG. A plurality of sliding plate pieces 1 are arranged in the longitudinal direction, and the lower surface is fastened with a certain interval between the copper plates 4, and the flexible sheet 3, the sliding plate pieces 1 and the copper plate 4 are integrated. .
舟体フレーム２は図５、図６に示すように上方に開口するチャンネル形状断面を持つものであり、図４、図６に示すように、ばね５は、舟体フレーム２に一定の間隔をもって取り付けられている。
一体となった可撓性シート３とすり板小片１、銅板４は、ばね５により支持され、舟体フレーム２の底面に一定の間隔で多数のボルト１２で締結されている。上記構造の集電舟は、例えば特許文献１の図２等に示されている。
The integrated flexible sheet 3, the sliding plate piece 1, and the copper plate 4 are supported by a spring 5 and fastened to a bottom surface of the hull frame 2 by a large number of bolts 12 at regular intervals. A current collector boat having the above-described structure is shown in FIG.
前述のとおり、車両用パンタグラフの集電舟が、架線に対する高い追従性能を得るためには、架線１１により加振を受けて運動するすり板小片１の質量をなるべく小さくする必要がある。
従って、理想的には摺接するすり板小片１の１個のみが、ばね５によりストローク運動することが望ましい。そのためには、可撓性シート３と銅板４には高い可撓性をもってすり板小片同士を結合する機能が求められる。しかし同時に、可撓性シート３と銅板４には、外力を受けるすり板小片１を舟体フレーム２に保持し、ばね５によるすり板小片１の上下ストローク運動の上限ストッパとしての機能も必要であり、高い機械的強度も要求される。
従来の集電舟の構成では、可撓性シート３と銅板４が切損した場合、すり板小片１が脱落し、飛散して重大な事故に進展する可能性があった。
As described above, in order for the current collector boat of the pantograph for a vehicle to obtain a high follow-up performance with respect to the overhead wire, it is necessary to reduce the mass of the sliding piece 1 that receives the vibration by the overhead wire 11 and moves as much as possible.
Therefore, ideally, it is desirable that only one of the sliding plate pieces 1 that are in sliding contact is stroked by the spring 5. For this purpose, the flexible sheet 3 and the copper plate 4 are required to have a function of joining the small pieces of the strip with high flexibility. At the same time, however, the flexible sheet 3 and the copper plate 4 are required to function as an upper limit stopper for the vertical stroke movement of the sliding piece 1 by the spring 5 while holding the sliding piece 1 receiving the external force on the boat body frame 2. And high mechanical strength is also required.
In the structure of the conventional current collector boat, when the flexible sheet 3 and the copper plate 4 are cut, the sliding plate pieces 1 may drop off and scatter and progress to a serious accident.
従来の集電舟の構造では、集電舟の断面形状は可撓性シート３の形状で決定される。空力騒音、揚力特性の改善のためには、可撓性シート３の形状を変更する必要であるが、従来の集電舟では、可撓性シート３は舟体フレーム２を被包しているため、容易に形状変更が出来ない欠点があった。
特に、複雑な断面形状の可撓性シート３は製造が困難であり、コストも高い。以上の結果、低空力騒音で適正な揚力特性とすることが必要な高速車両に適した断面形状の集電舟を構成する事が困難であった。
In the conventional current collector boat structure, the cross-sectional shape of the current collector boat is determined by the shape of the flexible sheet 3. In order to improve the aerodynamic noise and lift characteristics, it is necessary to change the shape of the flexible sheet 3, but in the conventional current collector boat, the flexible sheet 3 encloses the hull frame 2. For this reason, there is a drawback that the shape cannot be easily changed.
In particular, the flexible sheet 3 having a complicated cross-sectional shape is difficult to manufacture and the cost is high. As a result, it has been difficult to construct a current collector boat having a cross-sectional shape suitable for a high-speed vehicle that requires low aerodynamic noise and appropriate lift characteristics.
また、走行風による抗力や架線１１との摺動摩擦力により、可撓性のある可撓性シート３が進行方向の後方に変形し、空力特性が変化し、追従性能に影響を与える欠点があった。さらに、可撓性シート３の舟体フレーム２への固定は、可撓性シート３が可撓性を有するため、長手方向に一定の間隔で多くのボルト１２で締結する事が必要であり、着脱が困難であった。また、ボルト１２が空力騒音に与える影響も大きかった。
本発明は上述した従来技術の問題点を解決するためになされたものであって、追従性能が高く、安全で、空力騒音が低く、揚力特性を適正化することができ、さらに作業性に優れた、低コストの車両用集電舟を提供することを目的とする。
In addition, the flexible flexible sheet 3 is deformed rearward in the traveling direction due to the drag caused by the traveling wind and the sliding frictional force with the overhead wire 11, and the aerodynamic characteristics are changed. It was. Furthermore, the flexible sheet 3 is fixed to the boat frame 2 because the flexible sheet 3 has flexibility, it is necessary to fasten it with many bolts 12 at regular intervals in the longitudinal direction. Detachment was difficult. Further, the influence of the bolt 12 on the aerodynamic noise was great.
The present invention was made to solve the above-described problems of the prior art, and has high tracking performance, safety, low aerodynamic noise, optimization of lift characteristics, and excellent workability. Another object of the present invention is to provide a low-cost current collector boat for vehicles.
本発明は、前述の課題を解消するものであり、その手段を以下に説明する。
前述のとおり、従来の集電舟の構造において、可撓性シート３は、すり板小片１を舟体フレーム２に保持する機能と、可撓性をもってすり板小片同士を結合する機能を合わせ持っていた。
本発明においては、この二つの機能を分離し、可撓性シート３には可撓性をもってすり板小片１同士を結合する機能のみ持たせ、すり板小片１を舟体フレーム２に保持する機能は、以下に示す別の構造を付加する事で成立させる。
（１）すり板小片１を舟体フレーム２に保持する機能は、すり板小片１毎に上下ストローク運動の上限の制限となる機構（以下上限ストッパと記述）を設ける事で成立させる。
すなわち、上記すり板小片１に可撓性シート３、銅板４を介して、角パイプ状のガイド６を取り付け、ガイド６の中を貫通するに上記上限ストッパ７を設けて、ガイド６の上下ストロークを規制する。
上記構成とすることで、すり板小片１は、それぞれ単独で上限ストッパ７により舟体フレーム２に保持されるため、可撓性シート３、銅板４が切損しても脱落しなくなる。
（２）上限ストッパ７を設けることで、可撓性シート３は、舟体フレーム２を被包する形状とする必要がなくなり、矩形又はそれに準ずる単純な断面形状のシートとすることが可能となる。また、舟体フレーム２の側面形状の自由度を損なわず、低空力騒音、適切な揚力特性をもつ集電舟断面形状へ任意に変更出来る構造が可能となる。
さらに、可撓性シート３を単純な断面形状のシートとする事で、製造が容易になり、コストも低くなる。
（３）舟体フレーム２の内面側壁にスライダ１０を設けて上記ガイド６を案内し、車両進行方向に負荷される荷重を、上記ガイド６で支持する構造とすることで、可撓性シート３は車両進行方向の荷重を受けず、変形しなくなる。
（４）上限ストッパ７を設けた結果、可撓性シート３は、直接舟体フレーム２に多数のボルトで取り付ける必要がなくなり、上限ストッパ７を少数のボルトで取り付ければよく、着脱が容易となる。
The present invention solves the above-mentioned problems, and the means will be described below.
As described above, in the structure of the conventional current collector boat, the flexible sheet 3 has a function of holding the sliding board pieces 1 on the boat body frame 2 and a function of joining the sliding board pieces with flexibility. It was.
In the present invention, these two functions are separated, and the flexible sheet 3 has only the function of joining the strip pieces 1 to each other with flexibility, and the function of holding the slide pieces 1 to the hull frame 2. Is established by adding another structure shown below.
(1) The function of holding the sliding piece 1 to the hull frame 2 is established by providing a mechanism (hereinafter referred to as an upper limit stopper) that limits the upper and lower stroke movements for each sliding piece 1.
That is, a square pipe-shaped guide 6 is attached to the sliding plate piece 1 via a flexible sheet 3 and a copper plate 4, and the upper limit stopper 7 is provided to penetrate through the guide 6. To regulate.
By setting it as the said structure, since the sliding board piece 1 is each hold | maintained at the hull frame 2 by the upper limit stopper 7, even if the flexible sheet | seat 3 and the copper plate 4 are cut, it will not drop out.
(2) By providing the upper limit stopper 7, the flexible sheet 3 does not need to have a shape that encloses the boat frame 2, and can be a sheet having a rectangular shape or a simple cross-sectional shape equivalent thereto. . Moreover, the structure which can be arbitrarily changed into the collector boat cross-sectional shape which has a low aerodynamic noise and an appropriate lift characteristic, without impairing the freedom degree of the side surface shape of the hull frame 2 is attained.
Further, by making the flexible sheet 3 a sheet having a simple cross-sectional shape, the manufacturing becomes easy and the cost is reduced.
(3) By providing the slider 10 on the inner side wall of the boat body frame 2 to guide the guide 6 and supporting the load applied in the vehicle traveling direction by the guide 6, the flexible sheet 3 Does not receive a load in the vehicle traveling direction and does not deform.
(4) As a result of providing the upper limit stopper 7, the flexible sheet 3 does not need to be directly attached to the hull frame 2 with a large number of bolts, and the upper limit stopper 7 may be attached with a small number of bolts and is easily attached and detached. .
本発明によれば、追従性能が高く、安全で、空力騒音が低く、揚力特性を適正化し、作業性に優れた、低コストな車両用集電舟を提供することが可能となり、実用上大きな効果がある。
特に、架線に対する高い追従性能を得ることができ、かつ、揚力特性を適正化し、空力騒音の低減化を図ることができるので、高速車両用の集電舟に適用するに好適な集電舟を得ることができる。
According to the present invention, it is possible to provide a low-cost vehicle current collector boat that has high tracking performance, is safe, has low aerodynamic noise, optimizes lift characteristics, has excellent workability, and is practically large. effective.
In particular, a current collector boat suitable for application to a current collector boat for a high-speed vehicle can be obtained because it can obtain a high follow-up performance with respect to an overhead line, can optimize lift characteristics, and can reduce aerodynamic noise. Obtainable.
図１〜図３は本発明の実施例の集電舟の構成を示す図である。図１は集電舟を長手方向に直交する方向から見た断面図、図２は図１のＡ−Ａ断面図、図３は図１のＢ−Ｂ断面図である。
本実施例の集電舟は、図１に示すように耐アーク性に優れた可撓性シート３の上面に複数個のすり板小片１を長手方向に並べ、下面には銅板４をはさんで、更にその下面に、図２に示すようにすり板小片１毎に頑丈な角パイプ形状のガイド６を設けたものである。
図２に示すように、すり板小片１とガイド６の間にはカラ８を挟み込む要領で、両者は一定の間隔をもって締着され、可撓性シート３とすり板小片１、銅板４、ガイド６が一体とされている。
1-3 is a figure which shows the structure of the current collector boat of the Example of this invention. 1 is a cross-sectional view of the current collector boat as viewed from a direction orthogonal to the longitudinal direction, FIG. 2 is a cross-sectional view taken along line AA in FIG. 1, and FIG. 3 is a cross-sectional view taken along line BB in FIG.
In the current collector boat of this embodiment, as shown in FIG. 1, a plurality of strip pieces 1 are arranged in the longitudinal direction on the upper surface of a flexible sheet 3 excellent in arc resistance, and the copper plate 4 is sandwiched on the lower surface. Further, on the lower surface, as shown in FIG. 2, a sturdy square pipe-shaped guide 6 is provided for each of the small pieces of the sliding plate 1.
As shown in FIG. 2, the collar 8 is sandwiched between the sliding plate piece 1 and the guide 6 so that both are fastened at a fixed interval. The flexible sheet 3 and the sliding plate piece 1, the copper plate 4, the guide 6 is united.
図１〜図３に示すように、全てのガイド６の内部に頑丈な上限ストッパ７が貫通し、上限ストッパ７の両端は補助すり板９を介して舟体フレーム２に固定されている。すり板小片１は、ばね５により、銅板４、可撓性シート３、カラ８を介して、舟体フレーム２から押し上げられるが、ガイド６が舟体フレーム２に固定された上限ストッパ７により、押し上げられるストローク量が制限される。
また、同様に可撓性シート３、銅板４が折損しても舟体フレーム２に固定された上限ストッパ７によりガイド６が拘束され、前記のとおりガイド６と一体としたすり板小片１は脱落しない。
As shown in FIGS. 1 to 3, sturdy upper limit stoppers 7 pass through all the guides 6, and both ends of the upper limit stopper 7 are fixed to the hull frame 2 via auxiliary sliding plates 9. The sliding plate piece 1 is pushed up from the hull frame 2 by the spring 5 through the copper plate 4, the flexible sheet 3 and the collar 8, but the guide 6 is fixed by the upper limit stopper 7 fixed to the hull frame 2. The amount of stroke that is pushed up is limited.
Similarly, even if the flexible sheet 3 and the copper plate 4 are broken, the guide 6 is restrained by the upper limit stopper 7 fixed to the boat frame 2, and the sliding piece 1 integrated with the guide 6 is dropped as described above. do not do.
可撓性シート３は、矩形断面形状をもつ可撓性のある板状のシートであり、舟体フレーム２の側面には整流体１３が設けられる。可撓性シート３とは別に整流体１３を設けることで、舟体フレーム２の側面形状の自由度を損なわず、集電舟断面形状を任意に変更出来る構造としている。又、製造も容易で、低コストである。
図２、図３に示すように、舟体フレーム２の内面側壁にスライダ１０が設けられ、ガイド６はスライダ１０により案内されスライダ１０に沿って摺動する。
すり板小片１に負荷される車両進行方向の荷重は、ガイド６、スライダ１０を介して、舟体フレーム２で受ける構造となっている。これにより、可撓性シート３は車両進行方向の荷重を受けないため変形せず、空力特性の変化による追従性能の影響を抑制出来る。
可撓性シート３の両端には補助すり板９が取り付けられ、また、上限ストッパ７の両端も補助すり板９に固定されており、上記すり板小片１、可撓性シート３、ガイド６、ストッパ７および補助すり板９等からなる組立体の舟体フレーム２への取り付けは、補助すり板９を取り付けるボルト１２のみで可能としている。これにより、少数のボルト１２のみで着脱が可能で、作業性が良い。
The flexible sheet 3 is a flexible plate-like sheet having a rectangular cross-sectional shape, and a rectifying body 13 is provided on the side surface of the boat body frame 2. By providing the rectifying body 13 separately from the flexible sheet 3, the cross-sectional shape of the current collector boat can be arbitrarily changed without impairing the degree of freedom of the side surface shape of the boat body frame 2. In addition, it is easy to manufacture and low cost.
As shown in FIGS. 2 and 3, a slider 10 is provided on the inner side wall of the hull frame 2, and the guide 6 is guided by the slider 10 and slides along the slider 10.
The structure is such that the load in the vehicle traveling direction applied to the sliding plate piece 1 is received by the hull frame 2 via the guide 6 and the slider 10. Thereby, the flexible sheet 3 is not deformed because it does not receive a load in the vehicle traveling direction, and the influence of the follow-up performance due to the change of the aerodynamic characteristic can be suppressed.
An auxiliary sliding plate 9 is attached to both ends of the flexible sheet 3, and both ends of the upper limit stopper 7 are also fixed to the auxiliary sliding plate 9, and the sliding plate piece 1, the flexible sheet 3, the guide 6, The assembly including the stopper 7 and the auxiliary sliding plate 9 can be attached to the hull frame 2 only with the bolts 12 to which the auxiliary sliding plate 9 is attached. Thereby, attachment / detachment is possible with only a small number of bolts 12, and workability is good.
１ すり板小片
２ 舟体フレーム
３ 可撓性シート
４ 銅板
５ ばね
６ ガイド
７ 上限ストッパ
８ カラ
９ 補助すり板
１０ スライダ
１１ 架線
１２ ボルト
１３ 整流体
DESCRIPTION OF SYMBOLS 1 Sliding board piece 2 Ship frame 3 Flexible sheet 4 Copper plate 5 Spring 6 Guide 7 Upper limit stopper 8 Color 9 Auxiliary sliding board 10 Slider 11 Overhead wire 12 Bolt 13 Rectifier
Claims (1)
舟体フレーム（２）は上方に開口するコの字形断面を持ち剛性を有するものであり、
コイルばね（５）は、ばね座により舟体フレーム（２）に一定の間隔をもって取り付けられており、
前記コイルばね（５）の上端は、板状の銅板（４）と、矩形断面形状をもつ板状の耐アーク性に優れた可撓性シート（３）を介して複数個のすり板小片（１）を支持するものであり
前記可撓性シート（３）の上面には複数個の前記すり板小片（１）が締着され、下面には銅板（４）をはさんで一定の間隔をもって角パイプ状のガイド（６）が締着されており、
前記ガイド（６）の中を貫通して舟体の長手方向に、該ガイド（６）の上方への移動を規制する上限ストッパ（７）が設けられ、該上限ストッパ（７）は前記舟体フレーム（２）に固定されており、
前記舟体フレーム（２）に前記ガイド（６）を案内するスライダ（１０）が設けられている
ことを特徴とする車両用集電舟。 A plurality of sliding plate pieces (1), a hull frame (2), a flexible sheet (3), a copper plate 4, a plurality of springs (5), a guide (6), an upper limit stopper (7), and a slider (10 Current collector boat)
The hull frame (2) has a U-shaped cross section that opens upward and has rigidity.
The coil spring (5) is attached to the hull frame (2) with a constant interval by a spring seat,
The upper end of the coil spring (5) has a plate-shaped copper plate (4) and a plate-shaped flexible sheet (3) having a rectangular cross-sectional shape and excellent in arc resistance. 1) The flexible sheet (3) has a plurality of strip pieces (1) fastened to the upper surface, and the lower surface with a copper plate (4) sandwiched between them. The square pipe-shaped guide (6) is fastened,
An upper limit stopper (7) for restricting the upward movement of the guide (6) is provided in the longitudinal direction of the hull through the guide (6), and the upper limit stopper (7) is the hull. Fixed to the frame (2),
A current collector boat for a vehicle, wherein a slider (10) for guiding the guide (6) is provided on the boat body frame (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003398657A JP4040017B2 (en) | 2003-11-28 | 2003-11-28 | Current collector boat for vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003398657A JP4040017B2 (en) | 2003-11-28 | 2003-11-28 | Current collector boat for vehicles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2005160266A JP2005160266A (en) | 2005-06-16 |
| JP4040017B2 true JP4040017B2 (en) | 2008-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2003398657A Expired - Lifetime JP4040017B2 (en) | 2003-11-28 | 2003-11-28 | Current collector boat for vehicles |
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| Country | Link |
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| JP (1) | JP4040017B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103057423A (en) * | 2013-01-28 | 2013-04-24 | 辽宁工程技术大学 | Pantograph head structure capable of reducing offline rate of pantograph-contact line of electric locomotive |
| JP2021124438A (en) * | 2020-02-07 | 2021-08-30 | 公益財団法人鉄道総合技術研究所 | Contact force measurement method and current collector |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4244216B2 (en) * | 2005-04-08 | 2009-03-25 | 東海旅客鉄道株式会社 | Current collecting boat device |
| JP5602567B2 (en) | 2010-09-30 | 2014-10-08 | 東日本旅客鉄道株式会社 | Shock mitigation structure of strip |
| JP5582571B2 (en) * | 2010-09-30 | 2014-09-03 | 東日本旅客鉄道株式会社 | Assembly jig for sliding plate assembly |
| US8727085B2 (en) | 2012-02-16 | 2014-05-20 | Conductix, Inc. | Segmented collector shoe assembly |
| JP6660908B2 (en) * | 2017-03-27 | 2020-03-11 | 公益財団法人鉄道総合技術研究所 | Pantograph with current collector for high-speed rail vehicles |
| JP7300882B2 (en) * | 2019-04-24 | 2023-06-30 | 株式会社工進精工所 | Hull and current collector |
| JP7400609B2 (en) * | 2020-04-17 | 2023-12-19 | 富士電機株式会社 | Condition monitoring device |
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2003
- 2003-11-28 JP JP2003398657A patent/JP4040017B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103057423A (en) * | 2013-01-28 | 2013-04-24 | 辽宁工程技术大学 | Pantograph head structure capable of reducing offline rate of pantograph-contact line of electric locomotive |
| JP2021124438A (en) * | 2020-02-07 | 2021-08-30 | 公益財団法人鉄道総合技術研究所 | Contact force measurement method and current collector |
| JP7194131B2 (en) | 2020-02-07 | 2022-12-21 | 公益財団法人鉄道総合技術研究所 | CONTACT FORCE MEASURING METHOD AND CURRENT COLLECTOR |
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| Publication number | Publication date |
|---|---|
| JP2005160266A (en) | 2005-06-16 |
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