JP3396234B2 - Air brake of traveling body - Google Patents
Air brake of traveling bodyInfo
- Publication number
- JP3396234B2 JP3396234B2 JP04557592A JP4557592A JP3396234B2 JP 3396234 B2 JP3396234 B2 JP 3396234B2 JP 04557592 A JP04557592 A JP 04557592A JP 4557592 A JP4557592 A JP 4557592A JP 3396234 B2 JP3396234 B2 JP 3396234B2
- Authority
- JP
- Japan
- Prior art keywords
- vehicle
- vehicle body
- air
- braking force
- air brake
- 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 - Fee Related
Links
Landscapes
- Braking Arrangements (AREA)
Description
【発明の詳細な説明】
【０００１】
【産業上の利用分野】本発明は、高速鉄道車両，高速
艇，自動車等走行体の制動に適用されるエアブレーキに
関する。
【０００２】
【従来の技術】図４に、従来の高速走行車両の制動装置
としてのエアブレーキの例を示す。先頭車両０１の車両
天井０２に突壁０３が設置され、同突壁０３が制動時に
帆のように突出し、空力抵抗の増加で制動力を増大する
ように工夫されている。
【０００３】また、図５に示すように、車両０１の前後
に車体外に突出することができる突壁０３，０３′を設
けたものもある。
【０００４】
【発明が解決しようとする課題】前記の従来のエアブレ
ーキは、空気抵抗を突壁の突出しで増加させて制動力を
得ているが、この制動力は、（突壁前面流速)2×（突壁
面積）に比例した値となる。しかし、車両天井部に生ず
る境界層の関係で、図６に示すように、突壁前面の流速
Ｖは車両走行速度よりはるかに遅くなり制動力が小さく
なることが避けられなかった。とくに、この車両天井の
境界層は後方車両ほど厚く成長する。
【０００５】また図５に示される従来のエアブレーキの
ように、突壁を車両の前後に突き出すようにしている場
合には、後方の突壁は更に厚い境界層の下部に埋れた格
好となって、突壁前面の流速Ｖは一層低くなり制動力の
減少が著しくなることが避けられなかった。
【０００６】また更に、前記従来のエアブレーキでは、
図４に示すように、車両表面の気流は矢印０４１に示す
ように、突壁を避けるように車両両側に沿うように流れ
るか、又は、矢印０４２に示すように、突壁を直接に迂
回するように流れることとなり、突壁前面流速は車両走
行速度に比してかなり小さくなって制動力が十分に得ら
れないという問題点もあった。
【０００７】本発明は、以上の点に鑑みてなされたもの
であって、充分な大きさをもつ制動力を得ることができ
る走行体のエアブレーキを提供しようとするものであ
る。
【０００８】
【課題を解決するための手段】本発明の走行体のエアブ
レーキは次の手段を講じた。すなわち、連結部によって
互いに連結された複数の車体を備えた走行体の同連結部
上部において同車体に取付けられ車体外に出没可能な可
動部と同可動部の下流側で下方へ延びる固定ベーンとを
有する空気のガイドベーン、及び前記連結部の隙間にお
いて、前記固定ベーンと前記車体との間に形成され走行
体の走行方向にほぼ直角をなし下方へ向けた空気流路を
備えたことを特徴とする。
【０００９】
【作用】前記本発明においては、ガイドベーンの可動部
を走行体の車体外へ突出させると、気流はガイドベーン
の可動部によって案内されて、ガイドベーンのうち可動
部の下流側で下方へ延びる固定ベーンと車体との間に形
成され走行方向とほぼ垂直をなし下方に向けた空気流路
内へ入り、同空気流路内を走行方向とほぼ直角に下方に
向けて流れる。この気流の曲がり経路における運動量の
変化によって、走行体には走行方向と反対方向の空気力
が作用して制動が行われる。また、ガイドベーンによっ
て案内された気流は車体の連結部の隙間において、ガイ
ドベーンのうちの固定ベーンと車体との間の間隙を下方
に向けて流れるので、車体の上部に沿う気流の境界層が
薄くなり、ガイドベーンを複数の連結部に設けた場合も
制動力減少の問題を抑制でき制動力が増大する。
【００１０】また、制動を必要としない時には、ガイド
ベーンを退没させることによって、ガイドベーンによる
空気抵抗が発生することがない。
【００１１】
【実施例】本発明の一実施例を、図１ないし図３によっ
て説明する。本実施例は複数連結の列車に適用したエア
ブレーキに係るもので、車両Ａ，Ｂ間の連結部の隙間を
流路として利用し、この隙間の上部にガイドベーン１
Ａ，１Ｂが２台設けられている。
【００１２】前記各ガイドベーン１Ａ，１Ｂは、連結部
の隙間の上部において車体に固定された回転軸１−３に
回動できるように取付けられた可動平板１−１と前記回
転軸１−３に固定されて下方へ延びる固定ベーン１−２
を備え、同固定ベーン１−２と車体Ａ又はＢの間に間隔
が設けられて流路１−５を形成するようになっている。
一方のガイドベーン１Ａの前記可動平板１−１は回転軸
１−３より一方の車両Ａへ向って延び、他方のガイドベ
ーン１Ｂの前記可動平板１−１は回転軸１−３より他方
の車両Ｂへ向って延び、可動平板１−１と車体Ａ又はＢ
の屋根上との間に設けられた油圧シリンダ１−４によっ
て、可動平板１−１は車体Ａ又はＢの屋根上に起伏でき
るようになっている。
【００１３】図１において、車両がＷ方向へ進行する場
合に、制動力を作用させる時には、Ａ車両のガイドベー
ン１Ａを作動する。可動平板１−１は、油圧シリンダー
１−４によって車体に固定された回転軸１−３まわりに
回動し、図１に示すように、斜めに開く。これによっ
て、流路１−５が形成され、空気の流れは、可動平板１
−１と固定ベーン１−２に案内されて矢印Ｘに示すよう
に、進行方向に対し、直角に下方に向けて流れる。この
時に、Ｂ車両のガイドベーン１Ｂは作動せず、可動平板
は屋根上に伏せた状態に設置されている。
【００１４】図２は、図１と反対方向Ｅに車両が走向す
る場合を示し、この場合にはＢ車両のベーン１Ｂが作動
されＡ車両のベーン１Ａは作動されない。
【００１５】本実施例では、以上のように、ガイドベー
ン１Ａ，１Ｂの可動平板１−１によって気流を案内し
て、連結部の隙間においてガイドベーン１Ａ，１Ｂのう
ちの固定ベーン１−２と車体との間に形成される流路１
−５へ案内して車両進行方向に対し直角に下方に向けて
流すことによって、空気流のもつ運動量が変化し、図３
に示されるような力Ｆが車両に作用する。この力Ｆの水
平成分ＦX が制動力と作用することとなり、大きい制動
力を得ることができる。また、ガイドベーン１Ａ，１Ｂ
によって案内された空気流は車両の連結部の隙間におい
て、固定ベーン１−２と車体との間を下方に向けて流れ
るので、車両の屋根に沿う空気流の境界層が薄くなり、
ガイドベーン１Ａ，１Ｂを複数の連結部に設けた場合も
制動力減少の問題を抑制でき制動力が増大する。
【００１６】また、制動力を必要としない時には、両ガ
イドベーン１Ａ，１Ｂを車両Ａ，Ｂの屋根上に倒すこと
によって、車両Ａ，Ｂの空気抵抗を軽減することができ
る。
【００１７】
【発明の効果】以上説明したように、本発明は請求項１
に記載された構成を具備したことによって、走行体の走
行による空気流を利用して大きい制動力を得ることがで
き、また制動力を必要としない時には走行体の空気抵抗
を軽減することができる。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air brake applied to braking of a traveling body such as a high-speed rail car, a high-speed boat, and an automobile. 2. Description of the Related Art FIG. 4 shows an example of an air brake as a conventional braking device for a high-speed traveling vehicle. A projecting wall 03 is installed on the vehicle ceiling 02 of the leading vehicle 01, and the projecting wall 03 protrudes like a sail at the time of braking, and is designed to increase the braking force by increasing aerodynamic resistance. Further, as shown in FIG. 5 , there is a vehicle in which protruding walls 03, 03 'which can protrude outside the vehicle body are provided before and after the vehicle 01. [0004] In the above-mentioned conventional air brake, a braking force is obtained by increasing the air resistance by protruding the protruding wall. It is a value proportional to 2 × (projected wall area). However, due to the boundary layer generated on the ceiling of the vehicle, as shown in FIG. 6 , the flow velocity V on the front surface of the projecting wall is much slower than the vehicle traveling speed, and it is inevitable that the braking force becomes smaller. In particular, the boundary layer of the vehicle ceiling grows thicker in the rear vehicle. [0005] Further, when the protruding wall is projected forward and backward of the vehicle as in the conventional air brake shown in Fig. 5 , the rear protruding wall is buried under a thicker boundary layer. Thus, it is inevitable that the flow velocity V on the front surface of the projecting wall is further reduced, and the braking force is significantly reduced. Further, in the conventional air brake,
As shown in FIG. 4 , the airflow on the surface of the vehicle flows along both sides of the vehicle so as to avoid the protruding wall as shown by an arrow 041, or directly bypasses the protruding wall as shown by an arrow 042. As a result, the flow velocity in front of the projecting wall is considerably smaller than the traveling speed of the vehicle, and there is a problem that a sufficient braking force cannot be obtained. The present invention has been made in view of the above points, and has as its object to provide an air brake for a traveling body capable of obtaining a braking force having a sufficient magnitude. [0008] The air brake of the traveling body according to the present invention employs the following means. That is, retractable to the outside of the vehicle body is attached to the vehicle body in the connecting portion the upper portion of the traveling body having a plurality of vehicle body which are connected to each other by a connecting portion variable
Moving part and a fixed vane extending downward on the downstream side of the moving part.
All air guide vanes, and the clearance of the connection portion having
There are, you comprising the air flow path downwardly a substantially right angle to the running direction of the running body is formed between the body and the fixed vanes. [0009] [act] Oite the present onset Ming, when projecting the moving part <br/> guide vanes to the outside of the vehicle body of the traveling body, the airflow guide vanes
It is guided by the movable portion of the movable out of the guide vanes
Between the stationary vane and the vehicle body
Made is running direction and enters into substantially without vertical air flow path that downward flows downward substantially perpendicularly to the running direction of the air flow path. Due to the change of the momentum in the curved path of the airflow, the traveling body is subjected to an aerodynamic force acting in the direction opposite to the traveling direction to perform braking. In addition, the airflow guided by the guide vanes is guided by a gap in the connecting portion of the vehicle body.
Since the air flows downward in the gap between the fixed vanes and the vehicle body, the boundary layer of the air flow along the upper part of the vehicle body becomes thin, and the braking force is reduced even when the guide vanes are provided at multiple connecting parts. Problems can be suppressed and the braking force increases. Further, when no need of braking, by Shisabotsu the guide vanes, it is not a name that air resistance by the guide vanes occurs. An embodiment of the present invention will be described with reference to FIGS. This embodiment relates to an air brake applied to a plurality of connected trains, and uses a gap at a connection between vehicles A and B as a flow path, and guide vanes 1 above the gap.
A and 1B are provided. [0012] The respective guide vane 1A, 1B, the rotary shaft 1-3 and the movable flat plate 1-1 which is mounted so that it can rotate on the rotation shaft 1-3 fixed to the vehicle body in the upper portion of the gap of the connecting portion Fixed vane 1-2 fixed downward and extending downward
And a space is provided between the fixed vane 1-2 and the vehicle body A or B to form the flow path 1-5.
The movable flat plate 1-1 of one guide vane 1A extends from the rotating shaft 1-3 toward one vehicle A, and the movable flat plate 1-1 of the other guide vane 1B extends from the rotating shaft 1-3 to the other vehicle. B, the movable plate 1-1 and the vehicle body A or B
The movable flat plate 1-1 can be raised and lowered on the roof of the vehicle body A or B by the hydraulic cylinder 1-4 provided between the movable body 1-1 and the roof. In FIG. 1, the guide vanes 1A of the vehicle A are operated when a braking force is applied when the vehicle travels in the W direction. The movable flat plate 1-1 rotates around a rotation shaft 1-3 fixed to the vehicle body by a hydraulic cylinder 1-4, and opens obliquely as shown in FIG. Thereby, the flow path 1-5 is formed, and the flow of air is
-1 and guided by the fixed vane 1-2, and flows downward at right angles to the traveling direction as shown by the arrow X. At this time, the guide vane 1B of the vehicle B does not operate, and the movable flat plate is set to be prone on the roof. FIG. 2 shows a case in which the vehicle runs in the direction E opposite to that in FIG. 1. In this case, the vane 1B of the vehicle B is operated and the vane 1A of the vehicle A is not operated. [0015] In this embodiment, as described above, the guide vane 1A, and guide the air flow by the movable flat plate 1-1 of 1B, the guide vanes 1A in the gap of the coupling part, 1B
Channel 1 formed between the fixed vane 1-2 and the vehicle body
As shown in FIG. 3, the momentum of the air flow changes by guiding the vehicle to -5 and flowing downward at right angles to the vehicle traveling direction.
A force F as shown in FIG. Horizontal component F X of the force F becomes to act as a braking force, it is possible to obtain a large braking force. Also, guide vanes 1A, 1B
Airflow gap smell of the connecting portion of the vehicle which is guided by
Since the air flows downward between the fixed vane 1-2 and the vehicle body, the boundary layer of the airflow along the roof of the vehicle becomes thinner,
Even when the guide vanes 1A and 1B are provided in a plurality of connecting portions, the problem of reduction in braking force can be suppressed, and the braking force increases. When no braking force is required, the air resistance of the vehicles A and B can be reduced by lowering the guide vanes 1A and 1B on the roofs of the vehicles A and B.
You. [0017] As described above, the present invention relates to claim 1.
, A large braking force can be obtained by utilizing the airflow generated by the traveling of the traveling body, and the air resistance of the traveling body can be reduced when the braking force is not required. .
【図面の簡単な説明】
【図１】本発明の一実施例の側面図、
【図２】同実施例の反対方向への走行時の状態を示す側
面図、
【図３】同実施例における制動力発生状態の説明図、
【図４】従来の車両用エアブレーキの１例の斜視図、
【図５】従来の車両用エアブレーキの他の例の説明図、
【図６】図４に示す車両用エアブレーキにおける気流の
説明図である。
【符号の説明】Ａ
，Ｂ 車両
１Ａ，１Ｂ ガイドベーン１−１ 可動平板 １−２ 固定ベーン １−３ 回転軸 １−４ 油圧シリンダ １−５ 流路 BRIEF DESCRIPTION OF THE DRAWINGS side view of one embodiment of the invention, FIG, 2 shows a side view illustrating a state during traveling in the opposite direction in the real施例, [3] the implementation FIG. 4 is an explanatory view of a braking force generation state in the example, FIG. 4 is a perspective view of an example of a conventional vehicle air brake, FIG. 5 is an explanatory view of another example of a conventional vehicle air brake, FIG . Of the airflow in the vehicle air brake shown in FIG.
FIG. [Description of symbols] A, B vehicles both 1A, 1B guide vane 1-1 movable flat 1-2 stationary vanes 1-3 rotational axis 1-4 hydraulic cylinders 1-5 passage
───────────────────────────────────────────────────── フロントページの続き (72)発明者 渡部 洋八郎 長崎市深堀町５丁目717番１号 三菱重 工業株式会社長崎研究所内 (72)発明者 高崎 勝明 広島市西区観音新町四丁目６番22号 三 菱重工業株式会社広島研究所内 (72)発明者 古杉 光史 広島県三原市糸崎町5007番地 三菱重工 業株式会社三原製作所内 (72)発明者 志田 坦也 長崎市深堀町５丁目717番１号 三菱重 工業株式会社長崎研究所内 (72)発明者 倉ケ崎 六夫 長崎市深堀町５丁目717番１号 三菱重 工業株式会社長崎研究所内 (56)参考文献 特開 昭49−120311（ＪＰ，Ａ) 特開 平３−271063（ＪＰ，Ａ) 特開 平３−286191（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B60T 1/16 B61H 11/06 F16D 57/02 B64C 9/32 B64C 3/58 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yohichiro Watanabe 5-717-1 Fukahori-cho, Nagasaki-shi Mitsubishi Heavy Industries, Ltd. Nagasaki Research Laboratory (72) Inventor Katsuaki Takasaki 4-2-2 Kanon Shinmachi, Nishi-ku, Hiroshima-shi Mitsushi Furusugi, Inventor Mitsushi Furusugi, 5007 Itozakicho, Mihara City, Hiroshima Prefecture Mitsubishi Heavy Industries, Ltd.Mihara Works, Ltd. (72) Inventor Tanya Shida 5-717-1 Fukahoricho, Nagasaki City Mitsubishi Heavy Industries, Ltd. Nagasaki Laboratory (72) Inventor Rikuo Kuragasaki 5-717-1, Fukahori-cho, Nagasaki City Mitsubishi Heavy Industries, Ltd. Nagasaki Laboratory (56) References JP-A 49-1220311 (JP, A) JP-A-3-271063 (JP, A) JP-A-3-286191 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) B60T 1/16 B61H 11/06 F16D 57 / 02 B64C 9/32 B64C 3/58
Claims (1)
車体を備えた走行体の同連結部上部において同車体に取
付けられ車体外に出没可能な可動部と同可動部の下流側
で下方へ延びる固定ベーンとを有する空気のガイドベー
ン、及び前記連結部の隙間において、前記固定ベーンと
前記車体との間に形成され走行体の走行方向にほぼ直角
をなし下方へ向けた空気流路を備えたことを特徴とする
走行体のエアブレーキ。 (57) [Claim 1] A movable part which is attached to the vehicle body and which is capable of protruding and retracting outside the vehicle body at the upper part of the vehicle body having a plurality of vehicle bodies connected to each other by the connection part. Downstream of the moving part
A guide vane for air having a fixed vane extending downwardly , and in the gap between the connecting portions, the fixed vane
Eabure key traveling body comprising the air flow path downwardly a substantially right angle to the running direction of the running body is formed between the vehicle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04557592A JP3396234B2 (en) | 1992-03-03 | 1992-03-03 | Air brake of traveling body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04557592A JP3396234B2 (en) | 1992-03-03 | 1992-03-03 | Air brake of traveling body |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002161097A Division JP2003019950A (en) | 2002-06-03 | 2002-06-03 | Air brake for traveling body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05248460A JPH05248460A (en) | 1993-09-24 |
| JP3396234B2 true JP3396234B2 (en) | 2003-04-14 |
Family
ID=12723152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04557592A Expired - Fee Related JP3396234B2 (en) | 1992-03-03 | 1992-03-03 | Air brake of traveling body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3396234B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013221551A1 (en) * | 2013-10-23 | 2015-04-23 | Siemens Aktiengesellschaft | A method of temporarily increasing an air resistance of a rail vehicle having at least two cars coupled to each other |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5476720B2 (en) * | 2009-01-16 | 2014-04-23 | 株式会社ジェイテクト | Moving table |
| US20110115254A1 (en) * | 2009-03-05 | 2011-05-19 | Joseph Skopic | Apparatus for reducing drag on vehicles with planar rear surfaces |
| JPWO2012020549A1 (en) * | 2010-08-11 | 2013-10-28 | ナブテスコ株式会社 | Control method of aerodynamic brake device |
| US11396334B2 (en) | 2019-03-06 | 2022-07-26 | Trucklabs, Inc. | Deployable fairing system for use with vehicles |
| US11427267B2 (en) | 2019-03-06 | 2022-08-30 | Trucklabs, Inc. | Deployable fairing system for use with vehicles |
-
1992
- 1992-03-03 JP JP04557592A patent/JP3396234B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013221551A1 (en) * | 2013-10-23 | 2015-04-23 | Siemens Aktiengesellschaft | A method of temporarily increasing an air resistance of a rail vehicle having at least two cars coupled to each other |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05248460A (en) | 1993-09-24 |
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