JP6927755B2

JP6927755B2 - Railroad vehicle

Info

Publication number: JP6927755B2
Application number: JP2017112719A
Authority: JP
Inventors: 大樹濱崎; 尚史古川; 有司上野; 泰秀上田; 隆治湊; 藤井　忠; 忠藤井; 英人讃井; 恭平鈴木
Original assignee: Hitachi Ltd; Central Japan Railway Co
Current assignee: Hitachi Ltd; Central Japan Railway Co
Priority date: 2017-06-07
Filing date: 2017-06-07
Publication date: 2021-09-01
Anticipated expiration: 2037-06-07
Also published as: JP2018203138A

Description

本発明は、特高ケーブルを備える鉄道車両に関する。 The present invention relates to a railroad vehicle including an extra-high cable.

近年、鉄道車両には、車内音の低減による高品質化や部品点数の削減による低コスト化が求められている。このため鉄道車両を、アルミニウム合金製の中空押出形材で製造する場合がある。アルミニウム合金製の中空押出形材は、対向する２枚の面板とこれら面板を接続する接続板からなる部材を押出成形によって製造される。鉄道車両の車体を製造する場合、まず、複数の中空押出形材を定盤上に並べて接合し、床面をなす台枠、側面をなす側構体、屋根をなす屋根構体等のパネルを製造する。この後、これらパネルを６面体に組み立てることによって鉄道車両を製造する。特許文献１には、中空押出形材を用いて車体（構体）を構成する例が開示されている。 In recent years, railroad vehicles have been required to have high quality by reducing the noise inside the vehicle and to reduce the cost by reducing the number of parts. For this reason, railroad vehicles may be manufactured from hollow extruded profiles made of aluminum alloy. A hollow extruded profile made of an aluminum alloy is manufactured by extrusion molding a member composed of two facing face plates and a connecting plate connecting these face plates. When manufacturing the body of a railroad vehicle, first, a plurality of hollow extruded profiles are arranged side by side on a surface plate and joined to manufacture panels such as an underframe forming a floor surface, a side structure forming a side surface, and a roof structure forming a roof. .. After that, a railroad vehicle is manufactured by assembling these panels into a hexahedron. Patent Document 1 discloses an example in which a vehicle body (structure) is constructed by using a hollow extruded profile.

特開２００４−１３０８７２号公報Japanese Unexamined Patent Publication No. 2004-130872

鉄道車両が走行する時に生じる騒音は、車輪が軌道（レール）上を転動することによって生じる機械的な転動音と、鉄道車両の周囲を流れる空気の乱れや摩擦等によって生じる空力騒音に大別される。一般に、鉄道車両の速度が２００ｋｍ／ｈを越えると、鉄道車両から生じる騒音の内、空力騒音が占める割合が支配的になるとされる。 The noise generated when a railroad vehicle runs is large due to the mechanical rolling noise generated by the wheels rolling on the track (rail) and the aerodynamic noise generated by the turbulence and friction of the air flowing around the railroad vehicle. Separated. Generally, when the speed of a railroad vehicle exceeds 200 km / h, the ratio of aerodynamic noise to the noise generated from the railroad vehicle becomes dominant.

空力騒音の音源としては、集電装置、集電装置の前後に配置して集電装置から生じる騒音を抑制するための風防カバー、鉄道車両の屋根に配設される特高ケーブルなどがある。
このため、鉄道車両としては、軽量で気密荷重に対する高い剛性を備えると同時に、空力騒音を抑制できるものが求められている。 Sound sources of aerodynamic noise include current collectors, windshield covers arranged in front of and behind the current collectors to suppress noise generated by the current collectors, and extra-high cables arranged on the roofs of railway vehicles.
For this reason, railroad vehicles are required to be lightweight, have high rigidity against an airtight load, and at the same time be able to suppress aerodynamic noise.

上記の課題を解決するために、代表的な本発明の鉄道車両の一つは、中空押出形材からなる屋根構体と、屋根構体に備えられる特高ケーブルを有する鉄道車両であって、
特高ケーブルを、屋根構体を構成する中空押出形材の内部に備えることにより達成される。 In order to solve the above problems, one of the representative railway vehicles of the present invention is a railway vehicle having a roof structure made of hollow extruded profiles and an extra-high cable provided in the roof structure.
This is achieved by providing an extra-high cable inside the hollow extruded profile that makes up the roof structure.

本発明によれば、軽量で気密荷重に対する高い剛性を備えるとともに空力騒音を抑制できる鉄道車両を提供することができる。
上記した以外の課題、構成及び効果は、以下の実施形態の説明により明らかにされる。 According to the present invention, it is possible to provide a railway vehicle which is lightweight, has high rigidity against an airtight load, and can suppress aerodynamic noise.
Issues, configurations and effects other than those described above will be clarified by the description of the following embodiments.

図１は、本発明の鉄道車両の幅方向中央部の長手方向に沿う垂直断面図である。FIG. 1 is a vertical cross-sectional view of the railway vehicle of the present invention along the longitudinal direction of the central portion in the width direction. 図２は、鉄道車両の長手方向に交差する断面図（図１Ａ−Ａ断面図）である。FIG. 2 is a cross-sectional view (FIG. 1A-A cross-sectional view) intersecting in the longitudinal direction of the railroad vehicle. 図３は、気密荷重が作用する鉄道車両の屋根構体のせん断力図（ＳＦＤ）の模式図である。FIG. 3 is a schematic view of a shear force diagram (SFD) of a roof structure of a railway vehicle on which an airtight load acts. 図４は、図３に示す屋根構体の幅方向中央部（図３のＢ部相当）の拡大断面図である。FIG. 4 is an enlarged cross-sectional view of a central portion of the roof structure shown in FIG. 3 in the width direction (corresponding to portion B in FIG. 3). 図５は、図３に示すその他の例の屋根構体の幅方向中央部（図３のＢ部相当）の拡大断面図である。FIG. 5 is an enlarged cross-sectional view of a central portion in the width direction (corresponding to portion B in FIG. 3) of the roof structure of another example shown in FIG. 図６は、屋根構体をなす押出中空形材の内部に挿入される特高ケーブルの挿入部の部分断面図（図１のＣ部相当）である。FIG. 6 is a partial cross-sectional view (corresponding to part C in FIG. 1) of the insertion portion of the extra-high cable inserted inside the extruded hollow profile forming the roof structure.

以下、図面を参照して本発明を実施するための形態を説明する。まず、以下の説明に供する鉄道車両に関係する各方向を、鉄道車両１（以下、車両１と記す）の長手方向（レール方向）１００と、車両１の幅方向（枕木方向）１１０と、長手方向１００および幅方向１１０に直交する車両１の高さ方向１２０と定義する。以下、単に長手方向１００、幅方向１１０、高さ方向１２０と記す。 Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. First, each direction related to the railroad vehicle used in the following description is the longitudinal direction (rail direction) 100 of the railcar 1 (hereinafter referred to as vehicle 1), the width direction (pillow direction) 110 of the vehicle 1, and the longitudinal direction. It is defined as the height direction 120 of the vehicle 1 orthogonal to the direction 100 and the width direction 110. Hereinafter, it is simply referred to as 100 in the longitudinal direction, 110 in the width direction, and 120 in the height direction.

（実施例１）
図１は本発明の実施の形態に係る鉄道車両の幅方向中央部の長手方向に沿う垂直断面図であり、図２は鉄道車両の長手方向に交差する断面図（図１のＡ−Ａ断面図）である。図２に示されるように、車両１は、床面をなす台枠１０と、台枠１０の幅方向１１０の端部に立設される側構体２０と、台枠１０の長手方向１００の両端部に立設される妻構体４０と、側構体２０および妻構体４０の上端部に載置される屋根構体３０などから構成される。 (Example 1)
FIG. 1 is a vertical cross-sectional view of a railroad vehicle according to an embodiment of the present invention along the longitudinal direction of a central portion in the width direction, and FIG. Figure). As shown in FIG. 2, the vehicle 1 includes an underframe 10 forming a floor surface, a side structure 20 erected at an end of the underframe 10 in the width direction 110, and both ends of the underframe 10 in the longitudinal direction 100. It is composed of a wife structure 40 erected in the section, a side structure 20, a roof structure 30 mounted on the upper end of the wife structure 40, and the like.

台枠１０は、長手方向１００に交差する断面形状がＴ字状の複数のリブ（図示なし）を備える平板状の押出形材と、その下面に長手方向１００に沿って離散的に備えられる複数の横梁１４と、横梁１４の幅方向１１０の両端に長手方向１００に沿って備えられる一対の側梁１２などから構成される。 The underframe 10 includes a flat plate-shaped extruded material having a plurality of T-shaped ribs (not shown) intersecting the longitudinal direction 100, and a plurality of the underframe 10 discretely provided on the lower surface thereof along the longitudinal direction 100. The cross beam 14 is composed of a pair of side beams 12 provided along the longitudinal direction 100 at both ends of the cross beam 14 in the width direction 110.

側構体２０および屋根構体３０は、対向する２枚の面板とこれら面板を接続する複数の接続板からなる中空押出形材から構成されており、これら中空押出形材は長手方向１００に沿う方向に押出成形されるアルミニウム合金製である。 The side structure 20 and the roof structure 30 are composed of a hollow extruded profile composed of two facing face plates and a plurality of connecting plates connecting the face plates, and these hollow extruded profiles are oriented in the longitudinal direction 100. It is made of extruded aluminum alloy.

側構体２０および屋根構体３０の車内側には、車内外の熱の出入りを抑制する断熱材５０が備えられる。側構体２０の車内側に備えられる断熱材５０は側パネル５３で覆われ、屋根構体３０の車内側に備えられる断熱材５０は天井パネル５２で覆われる。台枠１０の上面には台枠１０の下方に備えられる空調装置（図示なし）で調和される調和空気を車内へ供給したり、車内から空調装置への再循環空気等を導いたりする空調ダクト５９が備えられる。空調ダクト５９の上方に備えられる上床５８には、座席５６などが固定される。 Inside the vehicle of the side structure 20 and the roof structure 30, a heat insulating material 50 that suppresses the inflow and outflow of heat inside and outside the vehicle is provided. The heat insulating material 50 provided inside the vehicle of the side structure 20 is covered with the side panel 53, and the heat insulating material 50 provided inside the vehicle of the roof structure 30 is covered with the ceiling panel 52. On the upper surface of the underframe 10, an air conditioning duct that supplies harmonious air harmonized by an air conditioner (not shown) provided below the underframe 10 into the vehicle and guides recirculated air from the inside of the vehicle to the air conditioner. 59 is provided. A seat 56 or the like is fixed to the upper floor 58 provided above the air conditioning duct 59.

また、図１に示されるように、屋根構体３０の上面の幅方向１１０の中央部にはその長手方向１００に沿って特高ケーブル７０が備えられている。一般的に、複数の鉄道車両によって編成が構成される場合、一つの編成には、複数の主回路に対応して複数の集電装置が存在することとなる。特高ケーブル７０は、これらの複数の主回路に対応する各集電装置同士を接続して、複数の集電装置を同電位に保つ機能を有する。このため、一つの集電装置が架線から離線した場合でも、他の集電装置が離線していなければ、集電装置と架線との間に生じるアークの発生を抑制することができる。したがって、特高ケーブル７０は、電波障害や集電装置のすり板の異常な摩耗を抑制する機能を有する。 Further, as shown in FIG. 1, an extra-high cable 70 is provided at the center of the upper surface of the roof structure 30 in the width direction 110 along the longitudinal direction 100 thereof. Generally, when a train set is composed of a plurality of railway vehicles, a plurality of current collectors correspond to a plurality of main circuits in one train set. The extra-high cable 70 has a function of connecting the current collectors corresponding to the plurality of main circuits to each other and keeping the plurality of current collectors at the same potential. Therefore, even if one current collector is separated from the overhead wire, the generation of an arc generated between the current collector and the overhead wire can be suppressed if the other current collector is not separated. Therefore, the extra-high cable 70 has a function of suppressing radio interference and abnormal wear of the sliding plate of the current collector.

従来、特高ケーブル７０は、屋根構体３０の長手方向１００の全長に渡って屋根構体３０の上面に、長手方向１００に沿って離散的に備えられる複数の固定具（図示なし）によって固定されていた。このため、これら固定具は、車両１が高速で走行する際には、集電装置等と同様に空力騒音の音源にもなっていた。さらに、複数の固定具で特高ケーブル７０を屋根構体３０の上面に敷設する作業は、部品点数が多くなり、車体の製作工数と重量を押し上げる課題があった。 Conventionally, the extra-high cable 70 is fixed to the upper surface of the roof structure 30 over the entire length of the roof structure 30 in the longitudinal direction 100 by a plurality of fixtures (not shown) discretely provided along the longitudinal direction 100. rice field. Therefore, these fixtures are also a sound source of aerodynamic noise when the vehicle 1 travels at a high speed, like a current collector or the like. Further, the work of laying the extra-high cable 70 on the upper surface of the roof structure 30 with a plurality of fixtures increases the number of parts, and has a problem of increasing the man-hours and weight of the vehicle body.

本発明の実施例１においては、図１に示すように、ジョイント７２から車両１の長手方向１００の中央部に向けて延伸する特高ケーブル７０は、屋根構体３０をなす中空押出形材の対向する２枚の面板の間の空間に配設される。 In the first embodiment of the present invention, as shown in FIG. 1, the extra-high cable 70 extending from the joint 72 toward the central portion of the vehicle 1 in the longitudinal direction 100 is opposed to the hollow extruded profile forming the roof structure 30. It is arranged in the space between the two face plates.

以上の構成によって、特高ケーブル７０を屋根構体３０の上面に固定具で固定する製作工数とその重量を削減することができるとともに、固定具による空力騒音の発生を効果的に抑制できる鉄道車両を提供することができる。 With the above configuration, it is possible to reduce the manufacturing man-hours and the weight of fixing the extra-high cable 70 to the upper surface of the roof structure 30 with a fixture, and to effectively suppress the generation of aerodynamic noise by the fixture. Can be provided.

（実施例２）
本実施例は、特高ケーブル７０を挿入する、中空押出形材の構造に関するものである。 (Example 2)
This embodiment relates to the structure of a hollow extruded profile into which the extra-high cable 70 is inserted.

まず、車体の変形に関連する気密加重について、図３を用いて説明する。図３は、気密荷重が作用する鉄道車両の屋根構体のせん断力図（ＳＦＤ）の模式図である。車両１が高速でトンネルを通過する際、トンネル内壁と車両１の外面との空間の圧力（以下、車外圧力と記す）が大気圧を基準としてプラス側とマイナス側に大きく変動する。これに対して、車両１は車内外の空気の出入りが基本的に少ない気密性を備えているので、車内圧力はほぼ大気圧に維持される。 First, the airtight weighting related to the deformation of the vehicle body will be described with reference to FIG. FIG. 3 is a schematic view of a shear force diagram (SFD) of a roof structure of a railway vehicle on which an airtight load acts. When the vehicle 1 passes through the tunnel at high speed, the pressure in the space between the inner wall of the tunnel and the outer surface of the vehicle 1 (hereinafter referred to as the pressure outside the vehicle) fluctuates greatly from the positive side to the negative side with respect to the atmospheric pressure. On the other hand, since the vehicle 1 is airtight with basically little air in and out of the vehicle, the pressure inside the vehicle is maintained at substantially atmospheric pressure.

車外圧力がプラス側に変動する時、車外から車内へ押す方向（収縮）の気密荷重が車両１に作用し、車外圧力がマイナス側に変動する時、車外圧力が車内から車外へ押す方向（膨張）の気密荷重が車両１に作用する。 When the external pressure fluctuates to the positive side, the airtight load in the direction of pushing from the outside to the inside of the vehicle (contraction) acts on the vehicle 1, and when the external pressure fluctuates to the negative side, the external pressure pushes from the inside of the vehicle to the outside of the vehicle (expansion). ) Acts on the vehicle 1.

車外圧力がマイナス側に変動した時の気密荷重９０が車両１の屋根構体３０に作用する時、屋根構体３０はその幅方向１１０の両端部が側構体２０の上端部に拘束されるため、屋根構体３０の幅方向１１０の両端部に最も大きなせん断力が作用し、屋根構体３０の幅方向１１０の中央部（図３のＢ部）にはせん断力がほとんど作用しない。 When the airtight load 90 when the external pressure fluctuates to the minus side acts on the roof structure 30 of the vehicle 1, the roof structure 30 has both ends in the width direction 110 restrained by the upper ends of the side structure 20. The largest shearing force acts on both ends of the structure 30 in the width direction 110, and almost no shearing force acts on the central portion of the roof structure 30 in the width direction 110 (part B in FIG. 3).

従来、屋根構体３０は、気密荷重９０に起因するせん断力に抗するため、第１面板（車外側の面板３２）と第２面板（車内側の面板３４）とこれら面板を接続する斜めリブ３３からなる中空押出形材で構成されていた。特に、第１面板３２と第２面板３４とを４５°前後の傾斜角で接続する斜めリブ３３を、屋根構体３０の幅方向１１０の全体に渡って備えることによって、気密荷重に起因するせん断力に抗して、屋根構体３０の変形を抑制していた。 Conventionally, in order to resist the shearing force caused by the airtight load 90, the roof structure 30 has a diagonal rib 33 connecting the first face plate (face plate 32 on the outside of the vehicle) and the second face plate (face plate 34 on the inside of the vehicle) and these face plates. It was composed of a hollow extruded profile made of. In particular, by providing an oblique rib 33 that connects the first face plate 32 and the second face plate 34 at an inclination angle of about 45 ° over the entire width direction 110 of the roof structure 30, a shearing force caused by an airtight load is provided. Against this, the deformation of the roof structure 30 was suppressed.

図４は、実施例２を詳しく説明するための図であり、図３に示す屋根構体の幅方向中央部（図３のＢ部相当）の拡大断面図である。実施例２で開示する屋根構体３０は、気密荷重９０に起因するせん断力がほとんど作用しない屋根構体３０の幅方向１１０の中央部に配設される。 FIG. 4 is a diagram for explaining the second embodiment in detail, and is an enlarged cross-sectional view of a central portion in the width direction (corresponding to the portion B in FIG. 3) of the roof structure shown in FIG. The roof structure 30 disclosed in the second embodiment is arranged at the center of the roof structure 30 in the width direction 110 on which the shearing force caused by the airtight load 90 hardly acts.

屋根構体３０の中央部に備えられる中空押出形材は、車外側の第１面板３２と、車内側の第２面板３４と、両面板を大きく傾斜して接続する複数の斜めリブ３３と、両面板を斜めリブ３３より大きい角度で接続する縦リブ３５ａ（外側縦リブ）および縦リブ３５ｂ（内側縦リブ）を備える。 The hollow extruded profile provided in the central portion of the roof structure 30 includes a first face plate 32 on the outside of the vehicle, a second face plate 34 on the inside of the vehicle, a plurality of diagonal ribs 33 for connecting the double-sided plates with a large inclination, and both sides. It includes vertical ribs 35a (outer vertical ribs) and vertical ribs 35b (inner vertical ribs) that connect the plates at an angle larger than the oblique ribs 33.

こうした構成によって、実施例２で開示する車両１は、屋根構体３０の一対の縦リブ３５ｂと第１面板３２および第２面板３４とで囲まれる空間に、特高ケーブル７０を備えることができる。このため、特高ケーブル７０を屋根構体３０の上面に固定具で固定する製作工数とその重量を削減することができるとともに、固定具による空力騒音の発生を効果的に抑制することができる。 With such a configuration, the vehicle 1 disclosed in the second embodiment can be provided with the extra-high cable 70 in the space surrounded by the pair of vertical ribs 35b of the roof structure 30 and the first face plate 32 and the second face plate 34. Therefore, it is possible to reduce the manufacturing man-hours and the weight of fixing the extra-high cable 70 to the upper surface of the roof structure 30 with the fixture, and it is possible to effectively suppress the generation of aerodynamic noise due to the fixture.

このような、第１面板３２、第２面板３４、縦リブ３５ａ（外側縦リブ）、縦リブ３５ｂ（内側縦リブ）との関係をさらに詳しく説明すると、次のようになる。縦リブ３５ａは、第１面板３２の第１接続部３６ａからほほ垂下する態様で、第２面板３４の第２接続部３６ｂに接続する。縦リブ３５ｂは、縦リブ３５ａより屋根構体３０の中央部寄りの第３接続部３７ａから屋根構体３０の中央部寄りに傾斜する態様で、第２面板３４の第４接続部３７ｂに接続する。 The relationship between the first face plate 32, the second face plate 34, the vertical ribs 35a (outer vertical ribs), and the vertical ribs 35b (inner vertical ribs) will be described in more detail as follows. The vertical rib 35a connects to the second connecting portion 36b of the second face plate 34 in a manner of hanging from the first connecting portion 36a of the first face plate 32. The vertical ribs 35b are connected to the fourth connecting portion 37b of the second face plate 34 in such a manner that the vertical ribs 35b are inclined from the third connecting portion 37a closer to the central portion of the roof structure 30 toward the central portion of the roof structure 30 than the vertical ribs 35a.

第１面板３２と第２面板３４と一対の縦リブ３５ｂ（内側縦リブ)とで囲まれる空間７５は、第１面板３２の側の幅寸法Ｗ１（第３接続部３７ａ同士の間隔）が第２面板３４の側の幅寸法Ｗ２（第４接続部３７ｂ同士の間隔）より大きい逆台形状である。 The space 75 surrounded by the first face plate 32, the second face plate 34, and the pair of vertical ribs 35b (inner vertical ribs) has a width dimension W1 (distance between the third connecting portions 37a) on the side of the first face plate 32. It has an inverted trapezoidal shape larger than the width dimension W2 (distance between the fourth connecting portions 37b) on the side of the two-sided plate 34.

また、空間７５の形状を幅寸法Ｗ１が幅寸法Ｗ２より大きい逆台形状とすることによって、縦リブ３５ｂが傾斜する態様で第１面板３２と第２面板３４とを接続している。 Further, by making the shape of the space 75 an inverted trapezoidal shape in which the width dimension W1 is larger than the width dimension W2, the first face plate 32 and the second face plate 34 are connected in such a manner that the vertical ribs 35b are inclined.

このため、第１面板３２に接続する一対の縦リブ３５ｂ（内側縦リブ）の幅方向の第１間隔（Ｗ１）が、第２面板３４に接続する一対の縦リブ３５ｂ（内側縦リブ）の幅方向の第２間隔（Ｗ２）より大きく設定された略逆台形であることにより、屋根構体３０の幅方向１１０の中央部に少なからず作用するせん断力に効果的に抗することができる。
さらに、斜めリブ３３に第２接続部３６ｂから下方に、第２面板３４等と一体に押出成形される断面Ｌ字状の補強リブ３４Ｌを備えることができ、この補強リブ３４Ｌによって、屋根構体３０の幅方向１１０の中央部の剛性が高められるとともに、補強リブ３４Ｌに天井パネル５２を固定することもできる。 Therefore, the first interval (W1) in the width direction of the pair of vertical ribs 35b (inner vertical ribs) connected to the first face plate 32 is the pair of vertical ribs 35b (inner vertical ribs) connected to the second face plate 34. By having a substantially inverted trapezoid set larger than the second interval (W2) in the width direction, it is possible to effectively resist the shearing force acting not a little on the central portion of the roof structure 30 in the width direction 110.
Further, the diagonal rib 33 can be provided with a reinforcing rib 34L having an L-shaped cross section that is extruded integrally with the second face plate 34 and the like downward from the second connecting portion 36b, and the reinforcing rib 34L allows the roof structure 30 to be provided. The rigidity of the central portion in the width direction 110 is increased, and the ceiling panel 52 can be fixed to the reinforcing rib 34L.

さらに、空間７５の形状を幅寸法Ｗ１が幅寸法Ｗ２より大きい略逆台形状とし、開口部３２ａの幅方向寸法を特高ケーブル７０の外径Ｄより大きくすることで、特高ケーブル７０を開口部３２ａを経由して空間７５に挿入することができる。これにより、特高ケーブル７０の屋根構体３０内への設置に係る製造工数を削減できるので、製造コストの小さい鉄道車両を提供できる。 Further, the shape of the space 75 is a substantially inverted trapezoidal shape in which the width dimension W1 is larger than the width dimension W2, and the width direction dimension of the opening 32a is made larger than the outer diameter D of the extra height cable 70 to open the extra height cable 70. It can be inserted into the space 75 via the portion 32a. As a result, it is possible to reduce the manufacturing man-hours related to the installation of the extra-high cable 70 in the roof structure 30, so that it is possible to provide a railway vehicle having a low manufacturing cost.

さらに、実施例２の変形例として、幅寸法Ｗ２を特高ケーブル７０の外径Ｄより若干小さく設定し、この空間７５の内部に特高ケーブル７０を備える時、特高ケーブル７０は第２面板３４と一対の縦リブ３５ｂの下端部に緩やかに拘束されるので、特高ケーブル７０は車両１の振動等によって空間７５の内部で縦リブ３５ｂ等に衝突することを防止できる。このため、特高ケーブル７０を覆う外被等が損傷して品質が劣化することを抑制できる。 Further, as a modification of the second embodiment, when the width dimension W2 is set to be slightly smaller than the outer diameter D of the extra-high cable 70 and the extra-high cable 70 is provided inside the space 75, the extra-high cable 70 is the second face plate. Since the extra-high cable 70 is loosely restrained by the lower ends of the pair of vertical ribs 35b with 34, it is possible to prevent the extra-high cable 70 from colliding with the vertical ribs 35b or the like inside the space 75 due to vibration or the like of the vehicle 1. Therefore, it is possible to prevent the outer cover or the like covering the extra-high cable 70 from being damaged and the quality from being deteriorated.

（実施例３）
本実施例は、特高ケーブル７０を挿入する、中空押出形材の構造であって、実施例２とは異なる構造に関するものである。図５は、実施例３を詳しく説明するための図であり、図３に示す屋根構体の幅方向中央部（図３のＢ部相当）の拡大断面図である。 (Example 3)
This embodiment is a structure of a hollow extruded profile into which an extra-high cable 70 is inserted, and relates to a structure different from that of the second embodiment. FIG. 5 is a diagram for explaining the third embodiment in detail, and is an enlarged cross-sectional view of a central portion in the width direction (corresponding to the portion B in FIG. 3) of the roof structure shown in FIG.

縦リブ３５ｃ（図５参照）を縦リブ３５ａ（外側縦リブ）に略平行に配置するとともに、一対の縦リブ３５ｃの間隔Ｗ３を特高ケーブル７０の外径Ｄより大きく設定しても、特高ケーブル７０を簡単に屋根構体３０の内部に設置することができる。 Even if the vertical ribs 35c (see FIG. 5) are arranged substantially parallel to the vertical ribs 35a (outer vertical ribs) and the distance W3 between the pair of vertical ribs 35c is set larger than the outer diameter D of the extra-high cable 70, The high cable 70 can be easily installed inside the roof structure 30.

（実施例４）
本実施例は、特高ケーブル７０を押出中空形材の内部に挿入する挿入部の構造に関する。図１において、特高ケーブル７０の終端部には、特高ケーブル７０を接続するジョイント７２が備えられる。ジョイント７２は、略流線形状のジョイントカバー７４で覆われており、ジョイント７２の空力騒音の発生を抑制している。
図６は、屋根構体をなす押出中空形材の内部に挿入される特高ケーブルの挿入部の部分断面図（図１のＣ部相当）である。特高ケーブル７０は、屋根構体３０をなす中空押出形材の第１面板３２に設けられる開口部３２ａから中空押出形材の内部に挿入される。 (Example 4)
This embodiment relates to the structure of an insertion portion into which the extra-high cable 70 is inserted into the extruded hollow profile. In FIG. 1, a joint 72 for connecting the extra-high cable 70 is provided at the end of the extra-high cable 70. The joint 72 is covered with a substantially streamlined joint cover 74, and the generation of aerodynamic noise of the joint 72 is suppressed.
FIG. 6 is a partial cross-sectional view (corresponding to part C in FIG. 1) of the insertion portion of the extra-high cable inserted inside the extruded hollow profile forming the roof structure. The extra-high cable 70 is inserted into the hollow extruded profile through the opening 32a provided in the first face plate 32 of the hollow extruded profile 30 forming the roof structure 30.

蓋７６は、蓋７６の上面に特高ケーブル７０を中空押出形材の内部に挿入するための筒７７を備える。筒７７は、その軸が蓋７６に対して３０°前後の緩やかな角度で交差する態様で蓋７６に固定される。筒７７および筒７７から屋根構体３０の上方に備えられる特高ケーブル７０およびジョイント７２は、略流線形状のジョイントカバー７４に覆われており、ジョイント７２および特高ケーブル７０などから生じる空力騒音の発生を抑制する。 The lid 76 includes a cylinder 77 on the upper surface of the lid 76 for inserting the extra-high cable 70 into the hollow extruded profile. The cylinder 77 is fixed to the lid 76 in such a manner that its axis intersects the lid 76 at a gentle angle of about 30 °. The extra-high cable 70 and the joint 72 provided above the cylinder 77 and the cylinder 77 to the roof structure 30 are covered with a substantially streamlined joint cover 74, and aerodynamic noise generated from the joint 72 and the extra-high cable 70 and the like is generated. Suppress the occurrence.

なお、本発明は上記した実施例に限定されるものではなく、様々な変形例が含まれる。例えば、上記した実施例は本発明を分かりやすく説明するために詳細に説明したものであり、必ずしも説明した全ての構成を備えるものに限定されるものではない。また、ある実施例の構成の一部を他の実施例の構成に置き換えることが可能であり、また、ある実施例の構成に他の実施例の構成を加えることも可能である。さらに、各実施例の構成の一部について、他の構成の追加、削除、置換をすることが可能である。 The present invention is not limited to the above-described examples, and includes various modifications. For example, the above-described embodiment has been described in detail in order to explain the present invention in an easy-to-understand manner, and is not necessarily limited to those having all the described configurations. Further, it is possible to replace a part of the configuration of one embodiment with the configuration of another embodiment, and it is also possible to add the configuration of another embodiment to the configuration of one embodiment. Further, it is possible to add, delete, or replace a part of the configuration of each embodiment with another configuration.

１…車両１０…台枠
１４…横梁２０…側構体
３０…屋根構体
３２…第１面板（車外側面板）３４…第２面板（車内側面板）
３３…斜めリブ３４Ｌ…補強リブ（天井パネル受）
３５ａ…縦リブ（外側縦リブ）３５ｂ…縦リブ（内側縦リブ)
３６ａ…第１接続部３６ｂ…第２接続部
３７ａ…第３接続部３７ｂ…第４接続部
４０…妻構体５０…断熱材
５２…天井パネル５３…側パネル
５４…荷棚５６…座席
５８…上床５９…空調ダクト
７０…特高ケーブル７２…ジョイント
７４…ジョイントカバー７５…空間
７６…蓋７７…筒
９０…気密荷重１００…長手方向
１１０…幅方向１２０…高さ方向 1 ... Vehicle 10 ... Underframe 14 ... Cross beam 20 ... Side structure 30 ... Roof structure 32 ... First face plate (vehicle outer face plate) 34 ... Second face plate (vehicle inner side plate)
33 ... Diagonal rib 34L ... Reinforcing rib (ceiling panel receiver)
35a ... Vertical rib (outer vertical rib) 35b ... Vertical rib (inner vertical rib)
36a ... 1st connection 36b ... 2nd connection 37a ... 3rd connection 37b ... 4th connection 40 ... Wife structure 50 ... Insulation 52 ... Ceiling panel 53 ... Side panel 54 ... Luggage shelf 56 ... Seat 58 ... Upper floor 59 ... Air conditioning duct 70 ... Extra high cable 72 ... Joint 74 ... Joint cover 75 ... Space 76 ... Lid 77 ... Cylinder 90 ... Airtight load 100 ... Longitudinal direction 110 ... Width direction 120 ... Height direction

Claims

A roof structure made of hollow extruded profiles and
The extra-high voltage cable provided in the roof structure and
In railroad vehicles with
The hollow extruded profile is
The first face plate arranged on the outside of the railway vehicle and
The second face plate, which is arranged substantially parallel to the first face plate and is arranged inside the railway vehicle,
Is equipped with
The extra high voltage cable
A railway vehicle characterized in that it is provided inside the hollow extruded profile constituting the roof structure via an opening provided in the first face plate of the roof structure.

In the railway vehicle according to claim 1,
The hollow extruded profile is
A plurality of diagonal ribs for connecting the second side plate and the first face plate,
A plurality of inner vertical ribs connecting the first face plate and the second face plate,
Is equipped with
The railroad vehicle
A railway vehicle comprising the extra-high cable provided in a space surrounded by the first face plate of the hollow extruded profile, the second face plate, and the pair of inner vertical ribs.

In the railroad vehicle according to claim 2.
The extra-high cable is provided in the space of the hollow extruded profile arranged in the central portion in the width direction of the roof structure.
The space is
The first spacing in the width direction of the pair of inner vertical ribs connected to the first face plate is set to be larger than the second spacing in the width direction of the pair of inner vertical ribs connected to the second face plate. A railroad vehicle characterized by being an inverted trapezoid.

In the railway vehicle according to claim 3,
The second interval is smaller than the outer diameter of the extra-high cable.
A railway vehicle characterized in that the first interval is set to be larger than the outer diameter of the extra-high cable.

In the railroad vehicle according to claim 4.
The railroad vehicle
The cylinder through which the extra high voltage cable is passed and
A lid that covers the opening while the cylinder is fixed in an inclined manner,
A railroad vehicle characterized by having.