WO2018155139A1

WO2018155139A1 - Bogie frame for railway car and bogie provided with same

Info

Publication number: WO2018155139A1
Application number: PCT/JP2018/003700
Authority: WO
Inventors: 佳広田村; 之高多賀; 史一鴻池; 貴也小野
Original assignee: 川崎重工業株式会社
Priority date: 2017-02-23
Filing date: 2018-02-02
Publication date: 2018-08-30
Also published as: SG11201907712QA; US20200231188A1; CN110337398B; CN110337398A; JP6842320B2; JP2018135039A

Abstract

This bogie frame for a railway car is provided with: a pair of lateral beam bodies; a longitudinal member which is perpendicular to the lateral beam bodies at both side sections in the car width direction of the pair of lateral beam bodies and has an insertion space formed to extend in the car width direction between the pair of lateral beam bodies; a lower plate bridged over the pair of lateral beam bodies at both side sections in the car width direction of the pair of lateral beam bodies; and a lateral member which is inserted through the insertion space to extend in the car width direction, is joined to the lower plate from above, and is joined to an edge section that forms the insertion space in the longitudinal member. The lateral member has: a columnar member in which an insertion space is formed, into which a cylindrical section protruding downward from a bottom wall section of an air spring is inserted; and a pair of reinforcing members adjacent to both sides of the columnar member in the car width direction.

Description

鉄道車両用台車枠及びそれを備えた台車Railway vehicle bogie frame and bogie equipped with the same

　本発明は、鉄道車両用台車枠及びそれを備えた台車に関する。 The present invention relates to a bogie frame for a railway vehicle and a bogie equipped with the bogie frame.

　鉄道車両の台車では、二次サスペンションとして一対の空気バネを車幅方向に間隔をあけて台車枠に搭載することが多い。 Railway car trolleys often have a pair of air springs as secondary suspensions mounted on the trolley frame at intervals in the vehicle width direction.

特開２０１６－８８４０３号公報JP 2016-88403 A

　ところで、一対の空気バネの間隔は車種毎の仕様により異なるため、台車枠における空気バネの支持構造部を車種毎に変更する必要がある。しかし、台車枠は、空気バネを介して車体荷重を受ける重要な強度部材であるため、台車枠における空気バネの支持構造部には補強によるレイアウト上の制約が生じる場合がある。そのため、車種が変わる度に台車枠全体を強度やレイアウト等の観点から設計し直したり、組立手順の見直しが必要となる。 By the way, since the distance between the pair of air springs varies depending on the specifications of each vehicle type, it is necessary to change the support structure of the air spring in the bogie frame for each vehicle type. However, since the bogie frame is an important strength member that receives the vehicle body load via the air spring, the support structure portion of the air spring in the bogie frame may be restricted in layout due to reinforcement. Therefore, it is necessary to redesign the entire bogie frame from the viewpoint of strength, layout, etc., and to review the assembly procedure every time the vehicle type changes.

　そこで本発明は、空気バネ位置の異なる車種間で台車枠の大部分を共通化することを可能とし、台車の設計効率や組立作業の効率を向上させることを目的とする。 Therefore, an object of the present invention is to make it possible to share most of the bogie frame among the vehicle types having different air spring positions, and to improve the design efficiency and assembly work efficiency of the bogie.

　本発明の一態様に係る鉄道車両用台車枠は、車幅方向に延びる一対の横梁本体と、前記一対の横梁本体の車幅方向両側部にて前記横梁本体に直交し、前記一対の横梁本体の間で車幅方向に延びる挿通空間が形成された縦部材と、前記一対の横梁本体の車幅方向両側部にて前記一対の横梁本体に架け渡された下板と、前記挿通空間を挿通して車幅方向に延び、前記下板の上面に接合されて且つ前記縦部材のうち前記挿通空間を形成する縁部に接合された横部材と、を備え、前記横部材は、空気バネの底壁部から下方に突出する筒部が挿入される挿入空間が形成された柱材と、前記柱材の車幅方向両側に隣接した一対の補強材と、を有する。 A railcar bogie frame according to an aspect of the present invention includes a pair of transverse beam main bodies extending in the vehicle width direction, and orthogonal to the transverse beam main body at both sides in the vehicle width direction of the pair of transverse beam main bodies, and the pair of transverse beam main bodies. A vertical member in which an insertion space extending in the vehicle width direction is formed, a lower plate spanned between the pair of horizontal beam main bodies at both sides in the vehicle width direction of the pair of horizontal beam main bodies, and the insertion space A transverse member that extends in the vehicle width direction and is joined to the upper surface of the lower plate and is joined to an edge of the longitudinal member that forms the insertion space. A column member having an insertion space into which a cylindrical portion projecting downward from the bottom wall portion is inserted; and a pair of reinforcing members adjacent to both sides of the column member in the vehicle width direction.

　前記構成によれば、空気バネの筒部が挿入される柱材を含む横部材が縦部材に形成された挿通空間を挿通するので、横部材における柱材の車幅方向位置が変わるように横部材の長さを変更するだけで、空気バネの車幅方向位置を容易に変更できる。よって、空気バネ位置の異なる車種間で台車枠の大部分を共通化することが可能になるため、台車枠の強度設計が容易になり、設計効率が向上する。 According to the above configuration, since the horizontal member including the column member into which the cylindrical portion of the air spring is inserted passes through the insertion space formed in the vertical member, the horizontal member position in the vehicle width direction of the column member in the horizontal member is changed. The position of the air spring in the vehicle width direction can be easily changed simply by changing the length of the member. Therefore, since most of the bogie frame can be shared among vehicle types with different air spring positions, the strength design of the bogie frame is facilitated, and the design efficiency is improved.

　本発明によれば、空気バネ位置の異なる車種間で台車枠の大部分を共通化することを可能とし、台車の設計効率や組立作業の効率を向上させることができる。 According to the present invention, it is possible to make most of the bogie frame common among vehicle types having different air spring positions, and the design efficiency of the bogie and the efficiency of assembly work can be improved.

第１実施形態に係る鉄道車両用台車の側面図である。It is a side view of the bogie for rail vehicles concerning a 1st embodiment. 図１に示す台車の横梁の平面図である。It is a top view of the cross beam of the trolley | bogie shown in FIG. 図２に示す横梁の上方から見た斜視図である。It is the perspective view seen from the upper direction of the cross beam shown in FIG. 図２に示す横梁の要部の車幅方向外側から見た斜視図である。It is the perspective view seen from the vehicle width direction outer side of the principal part of the cross beam shown in FIG. 図２に示す横梁の要部の車幅方向内側から見た斜視図である。It is the perspective view seen from the vehicle width direction inner side of the principal part of the cross beam shown in FIG. 図２に示す横梁、押圧部材及び板バネの車幅方向から見た断面図である。It is sectional drawing seen from the vehicle width direction of the cross beam shown in FIG. 2, a press member, and a leaf | plate spring. 図２に示す横梁、押圧部材及び板バネの車両長手方向から見た断面図である。It is sectional drawing seen from the vehicle longitudinal direction of the cross beam shown in FIG. 2, a press member, and a leaf | plate spring. 第２実施形態に係る鉄道車両用台車の側面図である。It is a side view of the railcar trolley | bogie which concerns on 2nd Embodiment. 図８に示す台車の台車枠の要部平面図である。It is a principal part top view of the bogie frame of the bogie shown in FIG.

　以下、図面を参照して実施形態を説明する。なお、以下の説明では、鉄道車両が走行する方向であって車体が延びる方向を車両長手方向とし、それに直交する横方向を車幅方向として定義する。車両長手方向は前後方向とも称し、車幅方向は左右方向とも称しえる。 Hereinafter, embodiments will be described with reference to the drawings. In the following description, the direction in which the railway vehicle travels and the direction in which the vehicle body extends is defined as the vehicle longitudinal direction, and the lateral direction perpendicular thereto is defined as the vehicle width direction. The longitudinal direction of the vehicle can also be referred to as the front-rear direction, and the vehicle width direction can also be referred to as the left-right direction.

　（第１実施形態）
　図１は、第１実施形態に係る鉄道車両用台車１の側面図である。図１に示すように、台車１は、二次サスペンションとなる空気バネ２を介して車体３を下方から支持する。台車１は、空気バネ２が搭載される台車枠４を備える。台車枠４は、車幅方向に延びる横梁５を備えるが、横梁５の車幅方向両端部から車両長手方向に延びる側梁を備えていない。横梁５の車両長手方向両側には、それぞれ車幅方向に沿って延びる一対の車軸６が配置される。車軸６の車幅方向両側の部分には車輪７が設けられる。車軸６の車幅方向両側の端部には、車輪７よりも車幅方向外側にて車軸６を回転自在に支持する軸受８が設けられ、軸受８は軸箱９に収容される。 (First embodiment)
FIG. 1 is a side view of a railway vehicle carriage 1 according to the first embodiment. As shown in FIG. 1, the carriage 1 supports the vehicle body 3 from below via an air spring 2 serving as a secondary suspension. The carriage 1 includes a carriage frame 4 on which an air spring 2 is mounted. The carriage frame 4 includes the horizontal beams 5 extending in the vehicle width direction, but does not include the side beams extending in the vehicle longitudinal direction from both ends of the horizontal beams 5 in the vehicle width direction. A pair of axles 6 extending along the vehicle width direction are disposed on both sides of the transverse beam 5 in the longitudinal direction of the vehicle. Wheels 7 are provided on both sides of the axle 6 in the vehicle width direction. Bearings 8 that rotatably support the axle 6 on the outer side of the wheel 7 in the vehicle width direction are provided at both ends of the axle 6 in the vehicle width direction. The bearing 8 is accommodated in the axle box 9.

　横梁５の車幅方向の端部は、例えば、軸梁式の軸箱支持装置１０によって軸箱９に連結される。軸箱支持装置１０は、軸箱９から車両長手方向に横梁５側に向けて延びた軸梁１１を備える。台車枠４は、横梁５から軸梁１１に向けて突出した受け座１２を有し、軸梁１１の先端部は、受け座１２にゴムブッシュ（図示せず）を介して弾性結合される。車両長手方向に離間した一対の軸箱９は、車両長手方向に延びた板バネ１３の長手方向両側の端部１３ｂを夫々支持する。板バネ１３の長手方向の中央部１３ａは、横梁５の車幅方向の端部を下方から支持する。これにより、横梁５は、板バネ１３を介して軸箱９に支持される。即ち、板バネ１３は、一次サスペンションの機能と従来の側梁の機能とを兼ねる。 The end of the transverse beam 5 in the vehicle width direction is connected to the axle box 9 by, for example, an axle beam type axle box support device 10. The axle box support device 10 includes an axle beam 11 extending from the axle box 9 toward the lateral beam 5 in the longitudinal direction of the vehicle. The carriage frame 4 has a receiving seat 12 protruding from the horizontal beam 5 toward the shaft beam 11, and the tip end portion of the shaft beam 11 is elastically coupled to the receiving seat 12 via a rubber bush (not shown). The pair of axle boxes 9 separated in the longitudinal direction of the vehicle respectively support the end portions 13b on both sides in the longitudinal direction of the leaf spring 13 extending in the longitudinal direction of the vehicle. The central portion 13a in the longitudinal direction of the leaf spring 13 supports the end of the transverse beam 5 in the vehicle width direction from below. As a result, the horizontal beam 5 is supported by the axle box 9 via the leaf spring 13. That is, the leaf spring 13 has both a primary suspension function and a conventional side beam function.

　板バネ１３の中央部１３ａは端部１３ｂよりも低く配置され、板バネ１３は、側面視で下方に凸な弓形状を有する。板バネ１３は、繊維強化樹脂により形成される。横梁５の車幅方向端部の下部には、下方に凸な円弧状の下面を有する押圧部材１４が設けられ、押圧部材１４が板バネ１３の中央部１３ａに上方から載せられて離間可能に接触する。即ち、板バネ１３を押圧部材１４に対して上下方向に固定しない状態で、横梁５からの重力による下方荷重によって押圧部材１４が板バネ１３の上面に接触する。即ち、押圧部材１４は、固定具により板バネ１３に固定されることなく、横梁５からの重力による下方荷重とそれに対する板バネ１３の反力との接触圧によって板バネ１３の上面との接触が保たれた状態となる。これにより、板バネ１３は、押圧部材１４の下面に対して押圧領域を変化させながら揺動することを可能にする。なお、押圧部材１４は、板バネ１３の中央部１３ａの上面に直接的に載せられてもよいし、介在物（例えば、緩衝シート）を介して間接的に載せられてもよい。 The central portion 13a of the leaf spring 13 is disposed lower than the end portion 13b, and the leaf spring 13 has a bow shape convex downward in a side view. The leaf spring 13 is made of fiber reinforced resin. A pressing member 14 having an arc-shaped lower surface that protrudes downward is provided at a lower portion of the end portion in the vehicle width direction of the cross beam 5, and the pressing member 14 can be placed on the central portion 13a of the leaf spring 13 from above and separated. Contact. That is, the pressing member 14 comes into contact with the upper surface of the leaf spring 13 by a downward load due to gravity from the transverse beam 5 without fixing the leaf spring 13 in the vertical direction with respect to the pressing member 14. That is, the pressing member 14 is not fixed to the leaf spring 13 by the fixture, but is brought into contact with the upper surface of the leaf spring 13 by the contact pressure between the downward load due to gravity from the lateral beam 5 and the reaction force of the leaf spring 13 against the downward load. Is maintained. Accordingly, the leaf spring 13 can swing while changing the pressing area with respect to the lower surface of the pressing member 14. The pressing member 14 may be directly placed on the upper surface of the central portion 13a of the leaf spring 13 or may be indirectly placed via an inclusion (for example, a buffer sheet).

　軸箱９の上端部には支持部材１５が取り付けられ、板バネ１３の端部１３ｂは支持部材１５を介して軸箱９に下方から支持される。支持部材１５の上面は、側面視で台車中央側に向けて傾斜している。板バネ１３の端部１３ｂも、支持部材１５に対して上下方向に固定しない状態で支持部材１５に上方から載せられる。支持部材１５は、軸箱９の上に設置されたベース部材１６（例えば、防振ゴム）と、ベース部材１６の上に設置されてベース部材１６に位置決めされた受部材１７とを有する。受部材１７は、板バネ１３の端部１３ｂが収容される凹部を有し、当該凹部は、上方及び台車中央側に向けて開放されている。受部材１７の凹部の底面と板バネ１３の端部１３ｂとの間には、板バネ１３及び受部材１７よりも硬度が低い図示しないシート（例えば、ゴムシート）が挟まれている。 A support member 15 is attached to the upper end portion of the axle box 9, and an end portion 13 b of the leaf spring 13 is supported by the axle box 9 from below through the support member 15. The upper surface of the support member 15 is inclined toward the center of the carriage in a side view. The end portion 13b of the leaf spring 13 is also placed on the support member 15 from above without being fixed to the support member 15 in the vertical direction. The support member 15 includes a base member 16 (for example, an anti-vibration rubber) installed on the axle box 9 and a receiving member 17 installed on the base member 16 and positioned on the base member 16. The receiving member 17 has a recess in which the end portion 13b of the leaf spring 13 is accommodated, and the recess is opened upward and toward the center of the carriage. Between the bottom surface of the concave portion of the receiving member 17 and the end portion 13b of the leaf spring 13, a sheet (for example, a rubber sheet) (not shown) having a hardness lower than that of the leaf spring 13 and the receiving member 17 is sandwiched.

　図２は、図１に示す台車１の横梁５の平面図である。図３は、図２に示す横梁５の上方から見た斜視図である。図４は、図２に示す横梁５の要部の車幅方向外側から見た斜視図である。図５は、図２に示す横梁５の要部の車幅方向内側から見た斜視図である。図２乃至５に示すように、横梁５は、横梁本体２１と、連結部材２２と、縦部材２３と、下板２４と、横部材２５と、上板２６とを備え、それらが互いに溶接等により接合されてなる。 FIG. 2 is a plan view of the cross beam 5 of the carriage 1 shown in FIG. FIG. 3 is a perspective view seen from above the cross beam 5 shown in FIG. FIG. 4 is a perspective view of the main part of the cross beam 5 shown in FIG. 2 as viewed from the outside in the vehicle width direction. FIG. 5 is a perspective view of the main part of the cross beam 5 shown in FIG. 2 as seen from the inner side in the vehicle width direction. As shown in FIGS. 2 to 5, the cross beam 5 includes a cross beam main body 21, a connecting member 22, a vertical member 23, a lower plate 24, a horizontal member 25, and an upper plate 26, which are welded to each other. It is joined by.

　横梁本体２１は、互いに車両長手方向に間隔をあけて配置された一対の管状部材（例えば、角パイプ）である。横梁本体２１の長手方向の両端は、横梁本体２１の内部に空気バネ２用の補助空気室を形成するように閉鎖されている。連結部材２２は、一対の横梁本体２１の間に配置された状態で、横梁本体２１に直交し、一対の横梁本体２１に接合されている。 The horizontal beam main body 21 is a pair of tubular members (for example, square pipes) that are spaced apart from each other in the longitudinal direction of the vehicle. Both ends in the longitudinal direction of the cross beam main body 21 are closed so as to form an auxiliary air chamber for the air spring 2 inside the cross beam main body 21. The connecting member 22 is disposed between the pair of cross beam main bodies 21 and is orthogonal to the cross beam main body 21 and joined to the pair of cross beam main bodies 21.

　縦部材２３は、横梁本体２１の車幅方向両側部にて一対の横梁本体２１の間に配置され、横梁本体２１に直交している。縦部材２３には、車幅方向に延びる挿通空間Ｓ１が形成されている。本実施形態では、縦部材２３は、一対の横梁本体２１の一方に接合された第１縦部材３１と、一対の横梁本体２１の他方に接合された第２縦部材３２とで構成されており、第１縦部材３１と第２縦部材３２との間に隙間が形成され、当該隙間を挿通空間Ｓ１としている。縦部材２３は、例えば、車両長手方向から見た断面が逆Ｕ形状を呈する。 The vertical member 23 is disposed between the pair of horizontal beam main bodies 21 at both sides in the vehicle width direction of the horizontal beam main body 21 and is orthogonal to the horizontal beam main body 21. The vertical member 23 is formed with an insertion space S1 extending in the vehicle width direction. In the present embodiment, the vertical member 23 includes a first vertical member 31 joined to one of the pair of horizontal beam main bodies 21 and a second vertical member 32 joined to the other of the pair of horizontal beam main bodies 21. A gap is formed between the first vertical member 31 and the second vertical member 32, and the gap is used as an insertion space S1. For example, the vertical member 23 has an inverted U-shaped cross section viewed from the vehicle longitudinal direction.

　下板２４は、一対の横梁本体２１の車幅方向両側部の下側において一対の横梁本体２１に架け渡されるように一対の横梁本体２１の下面に接合されている。下板２４の下面には、押圧部材１４が嵌合するように車両長手方向に延びた溝部２４ａが形成されている。第１縦部材３１及び第２縦部材３２の下端は、下板２４の上面に接合されている。 The lower plate 24 is joined to the lower surfaces of the pair of cross beam main bodies 21 so as to be bridged between the pair of cross beam main bodies 21 on the lower side of both sides in the vehicle width direction of the pair of cross beam main bodies 21. On the lower surface of the lower plate 24, a groove portion 24a extending in the vehicle longitudinal direction is formed so that the pressing member 14 is fitted. Lower ends of the first vertical member 31 and the second vertical member 32 are joined to the upper surface of the lower plate 24.

　横部材２５は、挿通空間Ｓ１に挿通された状態で車幅方向に延びている。横部材２５の下端は、下板２４の上面に接合されている。逆に言うと、挿通空間Ｓ１に横部材２５が挿通されていない状態では、挿通空間Ｓ１は、下板２４により下方から閉鎖されているが上方及び車幅方向に開放されている。第１縦部材３１及び第２縦部材３２のうち挿通空間Ｓ１を形成する縁部は、横部材２５に接合されている。 The horizontal member 25 extends in the vehicle width direction while being inserted into the insertion space S1. The lower end of the horizontal member 25 is joined to the upper surface of the lower plate 24. In other words, in a state where the horizontal member 25 is not inserted into the insertion space S1, the insertion space S1 is closed from below by the lower plate 24, but is open upward and in the vehicle width direction. The edge part which forms insertion space S1 among the 1st vertical member 31 and the 2nd vertical member 32 is joined to the horizontal member 25. As shown in FIG.

　横部材２５は、柱材３３と、第１補強材３４と、第２補強材３５とで構成されている。柱材３３は、鉛直方向に延びた角柱体である。柱材３３は、空気バネ２の底壁部から下方に突出する筒部２ａが挿入される鉛直方向に延びた挿入空間Ｓ２を有する。挿入空間Ｓ２は、横梁本体２１の内部空間（補助空気室）に図示しない流路形成体（例えば、パイプ）を介して連通している。柱材３３は、縦部材２３、第１補強材３４、第２補強材３５及び横梁本体２１よりも上方に突出している。柱材３３は、縦部材２３よりも車幅方向外側に位置している。なお、柱材３３は角柱体に限られず円柱体であってもよく、形状はこれらに限定されない。 The horizontal member 25 includes a pillar member 33, a first reinforcing member 34, and a second reinforcing member 35. The column member 33 is a prismatic body extending in the vertical direction. The column member 33 has an insertion space S2 extending in the vertical direction in which the cylindrical portion 2a protruding downward from the bottom wall portion of the air spring 2 is inserted. The insertion space S2 communicates with the internal space (auxiliary air chamber) of the cross beam main body 21 via a flow path forming body (for example, a pipe) (not shown). The column member 33 protrudes above the vertical member 23, the first reinforcing member 34, the second reinforcing member 35, and the cross beam main body 21. The column member 33 is located on the outer side in the vehicle width direction with respect to the vertical member 23. The column member 33 is not limited to a prismatic body, and may be a columnar body, and the shape is not limited to these.

　第１補強材３４は、柱材３３の車幅方向内側に隣接して柱材３３に接合され、車幅方向に延びている。第１補強材３４は、挿通空間Ｓ１に挿通され、第１縦部材３１及び第２縦部材３２のうち挿通空間Ｓ１を形成する縁部に接合されている。第２補強材３５は、柱材３３の車幅方向外側に隣接して柱材３３に接合されている。第１補強材３４と第２補強材３５とは、互いに車幅方向の長さが異なる。第１補強材３４及び第２補強材３５の上面は、縦部材２３の上面と同じ高さである。なお、第１補強材３４は挿通空間Ｓ１に収まっていれば縦部材２３の上面と同じ高さでなくてもよい。 The first reinforcing member 34 is adjacent to the inner side of the column member 33 in the vehicle width direction, joined to the column member 33, and extends in the vehicle width direction. The first reinforcing member 34 is inserted into the insertion space S <b> 1 and is joined to an edge portion of the first vertical member 31 and the second vertical member 32 that forms the insertion space S <b> 1. The second reinforcing member 35 is joined to the pillar member 33 adjacent to the outer side in the vehicle width direction of the pillar member 33. The first reinforcing member 34 and the second reinforcing member 35 have different lengths in the vehicle width direction. The upper surfaces of the first reinforcing member 34 and the second reinforcing member 35 are the same height as the upper surface of the vertical member 23. Note that the first reinforcing member 34 may not be the same height as the upper surface of the vertical member 23 as long as it is in the insertion space S1.

　第１補強材３４及び第２補強材３５の車両長手方向一方側の側面と柱材３３の車両長手方向一方側の側面とは、車幅方向に平行で且つ同一平面上に形成されている。第１補強材３４及び第２補強材３５の車両長手方向他方側の側面と柱材３３の車両長手方向他方側の側面とは、車幅方向に平行で且つ同一平面上に形成されている。第１補強材３４及び第２補強材３５は、車幅方向から見た断面が逆Ｕ形状を呈する。 The side surface of the first reinforcing material 34 and the second reinforcing material 35 on one side in the vehicle longitudinal direction and the side surface of the pillar material 33 on one side in the vehicle longitudinal direction are formed in parallel to the vehicle width direction and on the same plane. The side surface of the first reinforcing member 34 and the second reinforcing member 35 on the other side in the vehicle longitudinal direction and the side surface of the column member 33 on the other side in the vehicle longitudinal direction are formed in parallel to the vehicle width direction and on the same plane. The first reinforcing member 34 and the second reinforcing member 35 have an inverted U shape in cross section viewed from the vehicle width direction.

　上板２６は、縦部材２３及び横部材２５の上方に配置され、一対の横梁本体２１に架け渡されるように一対の横梁本体２１の上面に接合されている。上板２６は、柱材３３が上方に向けて貫通する貫通孔２６ａを有している。上板２６には、空気バネ２が載置される。上板２６は、連結部材２２の上側まで車幅方向内側に延びている。上板２６は、連結部材２２の上端に接合されている。平面視における上板２６のうち連結部材２２と横部材２５との間の領域には、肉抜き穴２６ｂが形成されている。 The upper plate 26 is disposed above the vertical member 23 and the horizontal member 25, and is joined to the upper surfaces of the pair of horizontal beam main bodies 21 so as to be bridged between the pair of horizontal beam main bodies 21. The upper plate 26 has a through hole 26a through which the column member 33 passes upward. The air spring 2 is placed on the upper plate 26. The upper plate 26 extends inward in the vehicle width direction to the upper side of the connecting member 22. The upper plate 26 is joined to the upper end of the connecting member 22. In the upper plate 26 in a plan view, a region between the connecting member 22 and the lateral member 25 is formed with a hole 26b.

　図６は、図２に示す横梁５、押圧部材１４及び板バネ１３の車幅方向から見た断面図である。図７は、図２に示す横梁５、押圧部材１４及び板バネ１３の車両長手方向から見た断面図である。なお、図７では簡略化のため説明に関係しない部材を省略して図示している。図６及び７に示すように、横梁５の下板２４の下面には、押圧部材１４が取り付けられている。押圧部材１４の上部は、下板２４の溝部２４ａに嵌合することで、車幅方向に位置決めされている。下板２４の下面と押圧部材１４の上面とは、凹凸嵌合構造２７により水平方向（特に車両長手方向）に位置決めされている。凹凸嵌合構造２７は、下板２４の下面に設けられた凸部（又は凹部）と、押圧部材１４の上面に設けられた凹部（又は凸部）からなる。 FIG. 6 is a cross-sectional view of the cross beam 5, the pressing member 14, and the leaf spring 13 shown in FIG. FIG. 7 is a cross-sectional view of the cross beam 5, the pressing member 14, and the leaf spring 13 shown in FIG. In FIG. 7, members not related to the description are omitted for the sake of simplicity. As shown in FIGS. 6 and 7, a pressing member 14 is attached to the lower surface of the lower plate 24 of the cross beam 5. The upper part of the pressing member 14 is positioned in the vehicle width direction by fitting into the groove 24 a of the lower plate 24. The lower surface of the lower plate 24 and the upper surface of the pressing member 14 are positioned in the horizontal direction (particularly in the longitudinal direction of the vehicle) by the concave / convex fitting structure 27. The concave / convex fitting structure 27 includes a convex portion (or concave portion) provided on the lower surface of the lower plate 24 and a concave portion (or convex portion) provided on the upper surface of the pressing member 14.

　押圧部材１４は、台車の側面視において下方に凸な円弧形状の下面１４ａを有する。即ち、押圧部材１４は、台車１の側面視においてその中央部から車両長手方向両端部に向けて徐々に薄肉となる形状を有する。押圧部材１４の下面１４ａは、板バネ１３の中央部１３ａを下方に押圧する。押圧部材１４の中心の車両長手方向位置は、板バネ１３の中心の車両長手方向位置と一致する。 The pressing member 14 has an arc-shaped lower surface 14a that protrudes downward in a side view of the carriage. That is, the pressing member 14 has a shape that gradually becomes thinner from the central portion toward both ends in the longitudinal direction of the vehicle in a side view of the carriage 1. The lower surface 14a of the pressing member 14 presses the central portion 13a of the leaf spring 13 downward. The vehicle longitudinal direction position at the center of the pressing member 14 coincides with the vehicle longitudinal direction position at the center of the leaf spring 13.

　上板２６は、車幅方向に延びる平板であり、その上部に空気バネ２（図１参照）が載置される。上板２６は、一対の横梁本体２１との間で溶接用の開先Ｇを形成するように車幅方向から見て台形断面を有する。なお、上板２６は車幅方向から見て下方に窪んだ凹部を有する構造であってもよい。上板２６は、第１縦部材３１、第２縦部材３２、第１補強材３４及び第２補強材３５に上方から当接し、上板２６の上面は、横梁本体２１の上面に対して略面一となるように開先Ｇにおいて溶接接合されている。上板２６のうち第１縦部材３１、第２縦部材３２、第１補強材３４及び第２補強材３５と重なる部分には、スリット２６ｄが形成されている。例えば、第１縦部材３１及び第２縦部材３２の真上のスリット２６ｄは、車両長手方向に延び、かつ、第１補強材３４及び第２補強材３５の真上のスリット２６ｄは、車幅方向に延びる。上板２６は、スリット２６ｄを介して、第１縦部材３１、第２縦部材３２、第１補強材３４及び第２補強材３５に溶接されている。第１縦部材３１及び第２縦部材３２は、上方から見て押圧部材１４に重なる位置に配置された状態で下板２４に接合されている。第１縦部材３１及び第２縦部材３２は、上方から見て押圧部材１４に包含されるように配置されている。第１縦部材３１及び第２縦部材３２の中心の車幅方向位置は、押圧部材１４の中心の車幅方向位置と一致する。 The upper plate 26 is a flat plate extending in the vehicle width direction, on which the air spring 2 (see FIG. 1) is placed. The upper plate 26 has a trapezoidal cross section when viewed from the vehicle width direction so as to form a groove G for welding between the pair of transverse beam main bodies 21. The upper plate 26 may have a structure having a concave portion that is recessed downward when viewed from the vehicle width direction. The upper plate 26 contacts the first vertical member 31, the second vertical member 32, the first reinforcing member 34, and the second reinforcing member 35 from above, and the upper surface of the upper plate 26 is substantially the upper surface of the transverse beam main body 21. The groove G is welded and joined so as to be flush with each other. A slit 26 d is formed in a portion of the upper plate 26 that overlaps the first vertical member 31, the second vertical member 32, the first reinforcing member 34, and the second reinforcing member 35. For example, the slit 26d directly above the first vertical member 31 and the second vertical member 32 extends in the longitudinal direction of the vehicle, and the slit 26d directly above the first reinforcing member 34 and the second reinforcing member 35 is the vehicle width. Extend in the direction. The upper plate 26 is welded to the first vertical member 31, the second vertical member 32, the first reinforcing member 34, and the second reinforcing member 35 through the slit 26d. The 1st vertical member 31 and the 2nd vertical member 32 are joined to the lower board 24 in the state arrange | positioned in the position which overlaps with the press member 14 seeing from upper direction. The first vertical member 31 and the second vertical member 32 are disposed so as to be included in the pressing member 14 when viewed from above. The vehicle width direction position of the center of the first vertical member 31 and the second vertical member 32 coincides with the vehicle width direction position of the center of the pressing member 14.

　以上に説明した構成によれば、空気バネ２の筒部２ａが挿入される柱材３３を含む横部材２５が縦部材２３に形成された挿通空間Ｓ１を挿通するので、横部材２５における柱材３３の車幅方向位置が変わるように横部材２５の長さを変更するだけで、空気バネ２の車幅方向位置を変更できる。よって、空気バネ位置の異なる車種間で台車枠４の大部分を共通化することが可能になるため、台車枠４の強度設計が容易になり、設計効率や組立作業の効率が向上する。 According to the configuration described above, the horizontal member 25 including the column member 33 into which the cylindrical portion 2a of the air spring 2 is inserted passes through the insertion space S1 formed in the vertical member 23. The position of the air spring 2 in the vehicle width direction can be changed simply by changing the length of the transverse member 25 so that the position of the vehicle width direction 33 changes. Therefore, since most of the carriage frame 4 can be shared among vehicle types having different air spring positions, the strength design of the carriage frame 4 is facilitated, and the design efficiency and the efficiency of assembly work are improved.

　また、第１補強材３４及び第２補強材３５の車両長手方向一方側の側面と柱材３３の車両長手方向一方側の側面とは、車幅方向に平行で且つ同一平面上に形成されており、第１補強材３４及び第２補強材３５の車両長手方向他方側の側面と柱材の車両長手方向他方側の側面とは、車幅方向に平行で且つ同一平面上に形成されているので、横部材２５における柱材３３の車幅方向位置が変わるように横部材２５を変更しても、横部材２５と下板２４との接合位置が略同じになり、空気バネ位置の異なる車種間での台車枠４の強度の相違を更に良く防止できる。 Further, the side surface of the first reinforcing member 34 and the second reinforcing member 35 on one side in the longitudinal direction of the vehicle and the side surface of the pillar member 33 on the one side in the longitudinal direction of the vehicle are formed in parallel to the vehicle width direction and on the same plane. In addition, the side surface of the first reinforcing member 34 and the second reinforcing member 35 on the other side in the vehicle longitudinal direction and the side surface of the column member on the other side in the vehicle longitudinal direction are formed in parallel to the vehicle width direction and on the same plane. Therefore, even if the horizontal member 25 is changed so that the position in the vehicle width direction of the pillar member 33 in the horizontal member 25 is changed, the joining position of the horizontal member 25 and the lower plate 24 is substantially the same, and the vehicle type having different air spring positions. The difference in the strength of the carriage frame 4 can be prevented even better.

　また、一対の横梁本体２１に架け渡された上板２６に柱材３３が貫通し、上板２６が第１補強材３４及び第２補強材３５等に上方から当接しているので、上板２６及びそれを下方から支持する第１補強材３４及び第２補強材３５等により空気バネ２を安定して支持できる。また、縦部材２３は、上方から見て押圧部材１４に重なる位置に配置されて下板２４に接合されているので、空気バネ２からの荷重が、縦部材２３、下板２４及び押圧部材１４を介して板バネ１３に鉛直方向に伝達されるので、押圧部材１４から板バネ１３に偏った荷重が伝達されることも防止できる。 Further, since the column member 33 penetrates the upper plate 26 spanned between the pair of transverse beam main bodies 21, and the upper plate 26 is in contact with the first reinforcing member 34, the second reinforcing member 35 and the like from above, the upper plate The air spring 2 can be stably supported by the first reinforcing member 34, the second reinforcing member 35, and the like 26 and the first reinforcing member 34 and the like that support the member from below. Further, since the vertical member 23 is disposed at a position overlapping the pressing member 14 when viewed from above and joined to the lower plate 24, the load from the air spring 2 is applied to the vertical member 23, the lower plate 24 and the pressing member 14. Therefore, it is possible to prevent the biased load from being transmitted from the pressing member 14 to the leaf spring 13.

　（第２実施形態）
　図８は、第２実施形態に係る鉄道車両用台車１０１の側面図である。図９は、図８に示す台車１０１の台車枠１０４の要部平面図である。図８に示すように、本実施形態の台車１０１は、平面視でＨ形状の台車枠１０４を備える。具体的には、台車枠１０４は、車幅方向両側において車両長手方向に延びた一対の側梁１２８と、一対の側梁１２８を互いに連結して車幅方向に延びた横梁本体１２１とを有する。側梁１２８の車両長手方向の端部と軸箱９との間には、一次サスペンションしてのコイルバネ１１３が介設されている。一対の横梁本体１２１に架け渡されるように一対の横梁本体１２１の下面に下板１２４が接合されている。一対の横梁本体１２１に架け渡されるように一対の横梁本体１２１の上面に上板１２６が接合されている。 (Second Embodiment)
FIG. 8 is a side view of the railway vehicle carriage 101 according to the second embodiment. FIG. 9 is a plan view of an essential part of the carriage frame 104 of the carriage 101 shown in FIG. As shown in FIG. 8, the cart 101 of this embodiment includes an H-shaped cart frame 104 in plan view. Specifically, the bogie frame 104 includes a pair of side beams 128 that extend in the vehicle longitudinal direction on both sides in the vehicle width direction, and a horizontal beam body 121 that connects the pair of side beams 128 to each other and extends in the vehicle width direction. . A coil spring 113 serving as a primary suspension is interposed between the end of the side beam 128 in the longitudinal direction of the vehicle and the axle box 9. A lower plate 124 is joined to the lower surfaces of the pair of transverse beam main bodies 121 so as to be bridged between the pair of transverse beam main bodies 121. An upper plate 126 is joined to the upper surfaces of the pair of cross beam main bodies 121 so as to be bridged between the pair of cross beam main bodies 121.

　図９に示すように、一対の横梁本体１２１の車幅方向両側に向けて延びる側梁１２８が、一対の横梁本体１２１の車幅方向両側部にて横梁本体１２１に直交する縦部材である。側梁１２８には、一対の横梁本体１２１の間において車幅方向に延びる挿通空間Ｓ３が形成されている。具体的には、挿通空間Ｓ３は、側梁１２８に形成されて車幅方向に開放された切欠である。この挿通空間Ｓ３に、前述した横部材２５が挿通されている。なお、側梁１２８に切欠を形成せずに側梁内部に車幅方向に延びる補強材を設けてもよい。横部材２５の下端は、下板１２４の上面に接合されている。側梁１２８のうち挿通空間Ｓ３を形成する縁部は、横部材２５に接合されている。以上の構成によれば、側梁１２８を有する一般的な形態の台車枠１０４であっても、空気バネ位置の異なる車種間で台車枠１０４の大部分を共通化することができる。なお、他の構成は前述した第１実施形態と同様であるため説明を省略する。 As shown in FIG. 9, the side beams 128 extending toward both sides in the vehicle width direction of the pair of horizontal beam main bodies 121 are vertical members orthogonal to the horizontal beam main body 121 at both sides in the vehicle width direction of the pair of horizontal beam main bodies 121. In the side beam 128, an insertion space S3 extending in the vehicle width direction is formed between the pair of horizontal beam main bodies 121. Specifically, the insertion space S3 is a cutout formed in the side beam 128 and opened in the vehicle width direction. The transverse member 25 described above is inserted into the insertion space S3. Note that a reinforcing material extending in the vehicle width direction may be provided inside the side beam without forming a notch in the side beam 128. The lower end of the horizontal member 25 is joined to the upper surface of the lower plate 124. The edge part which forms insertion space S3 among the side beams 128 is joined to the horizontal member 25. According to the above configuration, even if the bogie frame 104 is a general form having the side beams 128, most of the bogie frame 104 can be shared between vehicle types having different air spring positions. Since other configurations are the same as those of the first embodiment described above, description thereof is omitted.

　本発明は前述した実施形態に限定されるものではなく、その構成を変更、追加、又は削除することができる。１つの実施形態中の一部の構成を他の実施形態に適用してもよく、実施形態中の一部の構成は、その実施形態中の他の構成から分離して任意に抽出可能である。例えば、第１実施形態の挿通空間Ｓ１は、一対の横梁本体２１を連結する１つの縦部材に形成した切欠としてもよい。第１縦部材３１及び第２縦部材３２の断面形状は、逆Ｕ形状に限られず、他の形態でもよい。第１補強材３４及び第２補強材３５の断面形状も、逆Ｕ形状に限られず、他の形態でもよい。上板２６は、少なくとも空気バネ２の下側に配置されていればよく、連結部材２２の上側まで延在していなくてもよい。空気バネ２の設置高さは、車種に応じて筒部２ａの長さを変更することにより調整可能であるが、上板２６を空気バネ２を下方から支持し且つ車幅方向から見て下方に窪んだ凹部を有するものとすれば、設計時において上板２６の凹部の深さを変更することで、空気バネの設置高さを車種に応じて変更し得る。 The present invention is not limited to the above-described embodiment, and the configuration can be changed, added, or deleted. Some configurations in one embodiment may be applied to other embodiments, and some configurations in the embodiment can be arbitrarily extracted separately from other configurations in the embodiment. . For example, the insertion space S <b> 1 of the first embodiment may be a notch formed in one vertical member that connects the pair of horizontal beam main bodies 21. The cross-sectional shapes of the first vertical member 31 and the second vertical member 32 are not limited to the inverted U shape, and may be in other forms. The cross-sectional shapes of the first reinforcing member 34 and the second reinforcing member 35 are not limited to the inverted U shape, and may be in other forms. The upper plate 26 may be disposed at least on the lower side of the air spring 2 and may not extend to the upper side of the connecting member 22. The installation height of the air spring 2 can be adjusted by changing the length of the cylindrical portion 2a in accordance with the vehicle type. However, the upper plate 26 supports the air spring 2 from below and is downward when viewed from the vehicle width direction. If it has a recessed part recessed in, it can change the installation height of an air spring according to a vehicle model by changing the depth of the recessed part of the upper board 26 at the time of design.

　１，１０１　台車
　２　空気バネ
　２ａ　筒部
　３　車体
　４，１０４　台車枠
　５　横梁
　６　車軸
　８　軸受
　９　軸箱
　１３　板バネ
　１３ａ　中央部
　１３ｂ　端部
　１４　押圧部材
　１４ａ　下面
　２１，１２１　横梁本体
　２３　縦部材
　２４　下板
　２５　横部材
　２６　上板
　２６ａ　貫通孔
　２６ｃ　凹部
　３１　第１縦部材
　３２　第２縦部材
　３３　柱材
　３４　第１補強材
　３５　第２補強材
　Ｓ１，Ｓ３　挿通空間
　Ｓ２　挿入空間 DESCRIPTION OF SYMBOLS 1,101 Car 2 Air spring 2a Tube part 3 Car body 4,104 Car frame 5 Horizontal beam 6 Axle 8 Bearing 9 Shaft box 13 Leaf spring 13a Central part 13b End part 14 Press member

14a Lower surface

21, 121 Horizontal beam main body 23 Vertical member 24 Bottom Plate 25 Horizontal member 26 Upper plate 26a Through hole 26c Recessed portion 31 First vertical member 32 Second vertical member 33 Column member 34 First reinforcing material 35 Second reinforcing material S1, S3 Insertion space S2 Insertion space

Claims

　車幅方向に延びる一対の横梁本体と、
　前記一対の横梁本体の車幅方向両側部にて前記横梁本体に直交し、前記一対の横梁本体の間で車幅方向に延びる挿通空間が形成された縦部材と、
　前記一対の横梁本体の車幅方向両側部にて前記一対の横梁本体に架け渡された下板と、
　前記挿通空間を挿通して車幅方向に延び、前記下板の上面に接合されて且つ前記縦部材のうち前記挿通空間を形成する縁部に接合された横部材と、を備え、
　前記横部材は、空気バネの底壁部から下方に突出する筒部が挿入される挿入空間が形成された柱材と、前記柱材の車幅方向両側に隣接した一対の補強材と、を有する、鉄道車両用台車枠。 A pair of cross beam bodies extending in the vehicle width direction;
A vertical member in which an insertion space extending in the vehicle width direction is formed between the pair of horizontal beam main bodies perpendicular to the horizontal beam main body at both sides in the vehicle width direction of the pair of horizontal beam main bodies;
A lower plate spanning the pair of transverse beam bodies at both sides in the vehicle width direction of the pair of transverse beam bodies;
A transverse member that is inserted through the insertion space and extends in the vehicle width direction, is joined to the upper surface of the lower plate, and is joined to an edge of the longitudinal member that forms the insertion space;
The lateral member includes a column member in which an insertion space into which a cylindrical portion projecting downward from a bottom wall portion of the air spring is inserted, and a pair of reinforcing members adjacent to both sides in the vehicle width direction of the column member. A bogie frame for a railway vehicle.
　前記一対の補強材の車両長手方向一方側の側面と前記柱材の車両長手方向一方側の側面とは、車幅方向に平行で且つ同一平面上に形成されており、
　前記一対の補強材の車両長手方向他方側の側面と前記柱材の車両長手方向他方側の側面とは、車幅方向に平行で且つ同一平面上に形成されている、請求項１に記載の鉄道車両用台車枠。 A side surface on one side in the vehicle longitudinal direction of the pair of reinforcing members and a side surface on one side in the vehicle longitudinal direction of the column member are formed in parallel to the vehicle width direction and on the same plane,
2. The vehicle longitudinal direction other side surface of the pair of reinforcing members and the vehicle longitudinal direction other side surface of the column member are formed in parallel to the vehicle width direction and on the same plane. Bogie frame for railway vehicles.
　前記縦部材及び前記横部材の上方に配置され、前記一対の横梁本体に架け渡された上板を更に備え、
　前記上板は、前記柱材が上方に向けて貫通する貫通孔を有し、前記一対の補強材の上面に当接している、請求項１又は２に記載の鉄道車両用台車枠。 An upper plate disposed above the longitudinal member and the transverse member, and spanned between the pair of transverse beam bodies;
The bogie frame for a railway vehicle according to claim 1 or 2, wherein the upper plate has a through-hole through which the column member penetrates upward, and is in contact with upper surfaces of the pair of reinforcing members.
　請求項１乃至３のいずれか１項に記載の台車枠と、
　複数の車軸を夫々支持する複数の軸受を夫々収容する複数の軸箱と、
　車両長手方向に延び、前記複数の軸箱のうち車両長手方向に離間して配置された一対の軸箱に支持されて且つ前記台車枠を支持する板バネと、を備え、
　前記台車枠は、前記下板の下面に取り付けられて、前記板バネの長手方向中央部を上方から押圧する押圧部材を有し、
　前記縦部材は、上方から見て前記押圧部材に重なる位置に配置され、前記下板に接合されている、鉄道車両用台車。 A bogie frame according to any one of claims 1 to 3,
A plurality of axle boxes each housing a plurality of bearings that respectively support a plurality of axles;
A leaf spring that extends in the longitudinal direction of the vehicle, is supported by a pair of axle boxes that are spaced apart from each other in the longitudinal direction of the vehicle among the plurality of axle boxes, and supports the bogie frame;
The bogie frame has a pressing member that is attached to the lower surface of the lower plate and presses the longitudinal central portion of the leaf spring from above.
The said vertical member is a trolley | bogie for rail vehicles arrange | positioned in the position which overlaps with the said press member seeing from upper direction, and is joined to the said lower board.
　請求項１乃至３のいずれか１項に記載の台車枠と、
　一対の車軸を夫々支持する複数の軸受を夫々収容する複数の軸箱と、
　前記複数の軸箱を前記台車枠に連結する複数の軸箱支持装置と、を備え、
　前記縦部材は、前記一対の横梁本体の車幅方向両側に向けて延びる側梁である、鉄道車両用台車。 A bogie frame according to any one of claims 1 to 3,
A plurality of axle boxes each housing a plurality of bearings that respectively support a pair of axles;
A plurality of axle box support devices that connect the plurality of axle boxes to the bogie frame;
The said vertical member is a trolley | bogie for rail vehicles which is a side beam extended toward the vehicle width direction both sides of a pair of said horizontal beam main body.