JP3873659B2 - Railway vehicle bogie frame, assembling method thereof, and railcar bogie - Google Patents

Railway vehicle bogie frame, assembling method thereof, and railcar bogie Download PDF

Info

Publication number
JP3873659B2
JP3873659B2 JP2001153870A JP2001153870A JP3873659B2 JP 3873659 B2 JP3873659 B2 JP 3873659B2 JP 2001153870 A JP2001153870 A JP 2001153870A JP 2001153870 A JP2001153870 A JP 2001153870A JP 3873659 B2 JP3873659 B2 JP 3873659B2
Authority
JP
Japan
Prior art keywords
motor seat
welding
bogie frame
main motor
railway vehicle
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 - Lifetime
Application number
JP2001153870A
Other languages
Japanese (ja)
Other versions
JP2002347620A (en
Inventor
與志 佐藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP2001153870A priority Critical patent/JP3873659B2/en
Publication of JP2002347620A publication Critical patent/JP2002347620A/en
Application granted granted Critical
Publication of JP3873659B2 publication Critical patent/JP3873659B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Landscapes

  • Body Structure For Vehicles (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は、鉄道車両用台車枠及びその台車枠の組立て方法並びにその台車枠を備えた鉄道車両用台車に関するものである。
【０００２】
【従来の技術】
図３に示すように、対をなす側梁１ａ，１ｂと、これら側梁１ａ，１ｂを連結する横梁２と、この横梁２に取付けられた主電動機受座３を備えた鉄道車両の台車枠４にあって、主電動機受座３は主電動機より発生するトルクを受け、駆動の反力を常に受けることから、台車枠の最重要部であり、強度的に信頼性の高い構造が要求される。
【０００３】
特に主電動機受座３と横梁２の溶接接合部は、有限要素法（ＦＥＭ）による強度解析では、他の部位の０〜２０ＭＰａという応力に比べて、７５〜４６ＭＰａといった高い応力が発生することから、外面、内面共に信頼性の高い溶接継手が要求される。
【０００４】
ところで、この主電動機受座３は、従来は図５に示したように、主電動機取付用のキー３ａをその上面に取付けた上板３ｂを、一体的に形成された前面及び側面板３ｃの上端に溶接すると共に、この前面及び側面板３ｃ及びこの内側中央部に溶接した中間板３ｄを、裏板３ｅに溶接して、図４に示したように一体となした構造であった。
【０００５】
【発明が解決しようとする課題】
上記したような予め完成させた主電動機受座３の横梁２への取付は、外側については通常の開先溶接が可能であるが、内面側については、図６に示したように、前面及び側面板３ｃの前面に設けた開口３ｃａより溶接棒５を掴んだ溶接電極６を挿入して溶接する必要があった。
【０００６】
このような溶接では、溶接に際し、溶接部が見づらく、また、溶接棒の運棒が思うように行えないので、この最も重要な溶接部の溶接継手品質を確保することが困難であった。
【０００７】
本発明は、上記した従来の問題点に鑑みてなされたものであり、最も重要な主電動機受座の横梁への溶接部の溶接継手品質を向上可能な鉄道車両用台車枠及びその台車枠の組立て方法並びにその台車枠を備えた鉄道車両用台車を提供することを目的としている。
【０００８】
【課題を解決するための手段】
上記した目的を達成するために、本発明に係る鉄道車両用台車枠は、主電動機受座を構成する前面板が、当該主電動機受座を構成する他の部材とは別部材となされ、横梁に主電動機受座を溶接するに際し、前面板を除く主電動機受座を構成する他の部材を表裏面側から横梁に溶接した後、前面板を、前記主電動機受座を構成する他の部材と最後に外側のみから溶接することとしている。そして、このようにすることで、主電動機受座の横梁への溶接に際し、溶接部が見づらく、また、溶接棒の運棒が思うように行えないという問題がなくなる。
【０００９】
そして、上記したような本発明に係る鉄道車両用台車枠を備えた本発明に係る鉄道車両用台車にあっては、最も重要な主電動機受座の横梁への溶接部の溶接継手品質が向上し、安全性が高くなる。
【００１０】
【発明の実施の形態】
本発明に係る鉄道車両用台車枠は、対をなす側梁と、これら側梁を連結する横梁と、この横梁に溶接により取付けられた主電動機受座を備えた鉄道車両用台車枠において、
前記主電動機受座を構成する前面板が、当該主電動機受座を構成する他の部材とは別部材となされ、
前記横梁と前記主電動機受座を構成する前記前面板を除いた他の部材との溶接が、これらそれぞれの部材の表裏両側から行なわれ、前記前面板と前記他の部材との溶接が最後に外側のみから行われたものである。
【００１１】
そして、上記した本発明に係る鉄道車両用台車枠を組立てるに際しては、横梁に主電動機受座を溶接するに際し、前面板を除く主電動機受座を構成する他の部材を横梁に溶接した後、前面板を、前記主電動機受座を構成する他の部材と最後に溶接することにより行う。これが本発明に係る鉄道車両用台車枠の組立て方法である。
【００１２】
かかる本発明によれば、主電動機受座の横梁への取付に際し、溶接部が見づらく、また、溶接棒の運棒が思うように行えないという問題がなくなり、主電動機受座の横梁への溶接が円滑かつ確実に行えるようになって、溶接継手品質が向上する。
【００１３】
そして、上記したような本発明に係る鉄道車両用台車枠を備えた本発明に係る鉄道車両用台車にあっては、最も重要な主電動機受座の横梁への溶接部の溶接継手品質が向上して信頼性が増し、安全性が高くなる。
【００１４】
【実施例】
以下、本発明を図１及び図２に示す実施例に基づいて説明する。
図１は本発明に係る鉄道車両用台車枠の要部説明図で、（ａ）は正面から見た図、（ｂ）は平面から見た図、（ｃ）は側面からみた図、（ｄ）は主電動機を取付けた状態を側面から見た図、図２（ａ）〜（ｄ）は本発明に係る鉄道車両用台車枠の組立て方法を説明する図である。
【００１５】
図１及び図２において、１１は本発明に係る鉄道車両用台車枠及びこの台車枠を備えた本発明に係る鉄道車両用台車を構成する主電動機受座であり、従来の主電動機受座と異なり、側板１１ａと前面板１１ｂを別部材として構成している。
【００１６】
そして、本発明に係る鉄道車両用台車枠を組立てるに際しては、例えば、図２（ａ）（ｂ）に示したように、横梁２に、主電動機取付用のキー１１ｃをその上面に予め取付けた上板１１ｄと、その下側に底板１１ｅを予め取付けた裏板１１ｆを夫々の表裏面側から溶接して取り付ける。そして、その後、横梁２に２枚の側板１１ａ，１１ａと中間板１１ｆを夫々の両側面側から溶接して取り付ける。
【００１７】
これらの溶接に際し、本発明に係る台車枠を構成する主電動機受座１１にあっては、側板１１ａと前面板１１ｂを別部材として構成し、前面板１１ｂが取付けられていない状態であるので、主電動機受座１１の内面側の溶接が、図２（ａ）（ｂ）に示したように、溶接継手側が開放された状態で実施できることになり、溶接作業スペースが十分に確保できて信頼性の高い溶接継手が実現でき、溶接品質も安定するようになる。
【００１８】
上記したように、前面板１１ｂを除いた部材１１ａ，１１ｃ〜１１ｇを横梁２に溶接した後、図２（ｄ）に示したように、２枚の側板１１ａの前端に前面板１１ｂを当接させた状態で、２枚の側板１１ａの外面側と、中間板１１ｇの外面側両側と、図２（ｃ）に示したように、上板１１ｄと底板１１ｅの夫々の外面側から前面板１１ｂを溶接する。すなわち、横梁２に対して前面板１１ｂを最後に取付ける。
【００１９】
この前面板１１ｂの溶接は、外側のみからの片側開先溶接となり、上記した横梁２との溶接のように両側からの信頼性の高い溶接とはならないが、先に説明したＦＥＭによる強度解析では、発生応力は横梁２との溶接部に比べて小さいことから、主電動機受座１１全体としては、均質な信頼性の台車枠とすることができる。
【００２０】
以上が本発明方法によって組立てた本発明に係る鉄道車両用台車枠であり、この鉄道車両用台車枠を備えた本発明に係る鉄道車両用台車にあっては、上記したように最も重要な主電動機受座１１の横梁２への溶接部の溶接継手品質が向上して信頼性が増すことになって、安全性が高くなる。
【００２１】
【発明の効果】
以上説明したように、本発明によれば、主電動機受座の横梁への取付に際し、溶接部が見づらく、また、溶接棒の運棒が思うように行えないという問題がなくなり、主電動機受座の横梁への溶接が円滑かつ確実に行えるようになって、溶接継手品質が向上し、信頼性が増す。
【図面の簡単な説明】
【図１】本発明に係る鉄道車両用台車枠の要部説明図で、（ａ）は正面から見た図、（ｂ）は平面から見た図、（ｃ）は側面からみた図、（ｄ）は主電動機を取付けた状態を側面から見た図である。
【図２】（ａ）、（ｃ）は本発明に係る鉄道車両用台車枠の組立て方法を説明する図で、（ｂ）は（ａ）のＡ−Ａ断面図、（ｄ）は（ｃ）のＢ−Ｂ断面図である。
【図３】従来の鉄道車両用台車枠を平面から見た全体図である。
【図４】従来の鉄道車両用台車枠の要部説明図で、（ａ）は正面から見た図、（ｂ）は平面から見た図、（ｃ）は側面からみた図である。
【図５】従来の主電動機受座の組立て手順を説明する図である。
【図６】（ａ）は従来の鉄道車両用台車枠の組立て方法を説明する図、（ｂ）は（ａ）のＡ−Ａ断面図である。
【符号の説明】
１ａ 側梁
１ｂ 側梁
２ 横梁
４ 台車枠
１１ 主電動機受座
１１ａ 側板
１１ｂ 前面板[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a railcar bogie frame, a method for assembling the bogie frame, and a railcar bogie equipped with the bogie frame.
[0002]
[Prior art]
As shown in FIG. 3, a bogie frame of a railway vehicle including a pair of side beams 1 a and 1 b, a cross beam 2 connecting the side beams 1 a and 1 b, and a main motor seat 3 attached to the cross beam 2. 4, the main motor seat 3 receives the torque generated from the main motor and constantly receives the reaction force of the drive. Therefore, the main motor seat 3 is the most important part of the bogie frame and requires a highly reliable structure. The
[0003]
In particular, in the welded joint between the main motor seat 3 and the cross beam 2, in the strength analysis by the finite element method (FEM), a stress as high as 75 to 46 MPa is generated as compared with a stress as 0 to 20 MPa in other parts. A highly reliable welded joint is required for both the outer and inner surfaces.
[0004]
By the way, as shown in FIG. 5, the main motor seat 3 conventionally has an upper plate 3b having a main motor mounting key 3a mounted on the upper surface thereof, and an integrally formed front and side plate 3c. In addition to being welded to the upper end, the front and side plates 3c and the intermediate plate 3d welded to the inner central portion were welded to the back plate 3e, and the structure was integrated as shown in FIG.
[0005]
[Problems to be solved by the invention]
As shown in FIG. 6, as shown in FIG. 6, the front end of the main motor seat 3 that has been completed in advance can be welded to the cross beam 2 on the outside. It was necessary to insert and weld the welding electrode 6 holding the welding rod 5 from the opening 3ca provided on the front surface of the side plate 3c.
[0006]
In such welding, it is difficult to see the welded part at the time of welding and it is difficult to ensure the quality of the welded joint of this most important welded part because the rod of the welding rod cannot be operated as expected.
[0007]
The present invention has been made in view of the above-described conventional problems, and the bogie frame for a railway vehicle capable of improving the weld joint quality of the welded portion to the transverse beam of the most important main motor seat and the bogie frame of the bogie frame. and its object is to provide an assembly method and railway vehicle bogie with its bogie frame.
[0008]
[Means for Solving the Problems]
To achieve the above object, the railway vehicle bogie frame of the present invention, the main motor seat front plate it configure is the other member constituting the traction motor seat made as separate members, other cross beam upon welding the main motor seat, after the other members constituting the traction motor seat excluding front plate is welded to the cross beam from the front and back surfaces, the front surface plate, constituting the main motor seat We are going to weld from the outside only to the last member . And by doing in this way, in welding to the cross beam of the main motor seat, it is difficult to see the welded portion, and the problem that the rod of the welding rod cannot be performed as expected is eliminated.
[0009]
And in the railway vehicle bogie according to the present invention provided with the bogie frame for the railway vehicle according to the present invention as described above, the weld joint quality of the welded portion to the cross beam of the most important main motor seat is improved. And safety is increased.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
A railcar bogie frame according to the present invention is a railcar bogie frame including a pair of side beams, a horizontal beam connecting the side beams, and a main motor seat attached to the horizontal beam by welding .
The front plate constituting the main motor seat is a separate member from the other members constituting the main motor seat,
Welding with other members except for the front plate constituting the traction motor seat and said transverse beam is carried out from the front and back sides of each of the members, the welding end of said other member and the front plate It was done only from the outside .
[0011]
Then, when assembling the railcar bogie frame according to the present invention described above, the horizontal beam upon welding the main motor seat, after welding the other members constituting the traction motor seat excluding the front plate cross beam the front plate is carried out by Rukoto be welded to another member and the last constituting the traction motor seat. This is the method for assembling the bogie frame for a railway vehicle according to the present invention.
[0012]
According to the present invention, when the main motor seat is attached to the cross beam, there is no problem that the welded portion is difficult to see and the welding rod cannot be moved as expected, and the main motor seat is welded to the cross beam. Can be performed smoothly and reliably, and the quality of the welded joint is improved.
[0013]
And in the railway vehicle bogie according to the present invention provided with the bogie frame for the railway vehicle according to the present invention as described above, the weld joint quality of the welded portion to the cross beam of the most important main motor seat is improved. As a result, reliability increases and safety increases.
[0014]
【Example】
Hereinafter, the present invention will be described based on the embodiments shown in FIGS.
FIG. 1 is an explanatory view of the main part of a bogie frame for a railway vehicle according to the present invention, where (a) is a view seen from the front, (b) is a view seen from a plane, (c) is a view seen from the side, ) Is a view of a state in which the main motor is attached as viewed from the side, and FIGS. 2A to 2D are views for explaining a method of assembling a bogie frame for a railway vehicle according to the present invention.
[0015]
1 and 2, reference numeral 11 denotes a railcar bogie frame according to the present invention and a main motor seat that constitutes the railcar bogie according to the present invention provided with the bogie frame. Differently, the side plate 11a and the front plate 11b are configured as separate members.
[0016]
When assembling the bogie frame for a railway vehicle according to the present invention, for example, as shown in FIGS. 2 (a) and 2 (b), a key 11c for attaching a main motor is attached to the upper surface of the cross beam 2 in advance. A top plate 11d and a back plate 11f having a bottom plate 11e attached in advance to the lower side thereof are attached by welding from the respective front and back sides. After that, the two side plates 11a and 11a and the intermediate plate 11f are attached to the cross beam 2 by welding from both side surfaces.
[0017]
At the time of welding, in the main motor seat 11 constituting the carriage frame according to the present invention, the side plate 11a and the front plate 11b are configured as separate members, and the front plate 11b is not attached. As shown in FIGS. 2 (a) and 2 (b), welding on the inner surface side of the main motor seat 11 can be performed with the welded joint side open, so that a sufficient welding work space can be secured and reliability is ensured. High weld joints can be realized and the welding quality can be stabilized.
[0018]
As described above, after the members 11a, 11c to 11g except the front plate 11b are welded to the cross beam 2, the front plate 11b is brought into contact with the front ends of the two side plates 11a as shown in FIG. In this state, as shown in FIG. 2C, the front plate 11b from the outer surface side of the two side plates 11a, both outer surface sides of the intermediate plate 11g, and the outer surface side of the top plate 11d and the bottom plate 11e. Weld. That is, the front plate 11b is attached to the horizontal beam 2 last.
[0019]
The welding of the front plate 11b is a one-side groove welding from the outside only, and does not become a reliable welding from both sides like the welding with the cross beam 2 described above, but in the strength analysis by FEM described above, Since the generated stress is smaller than the welded portion with the cross beam 2, the main motor seat 11 as a whole can be a cart frame with uniform reliability.
[0020]
The above is the railcar bogie frame according to the present invention assembled by the method of the present invention. In the railcar bogie according to the present invention provided with the railcar bogie frame, the most important main vehicle as described above. The quality of the welded joint of the welded portion of the electric motor seat 11 to the cross beam 2 is improved and the reliability is increased, and the safety is increased.
[0021]
【The invention's effect】
As described above, according to the present invention, when the main motor seat is attached to the cross beam, there is no problem that it is difficult to see the welded portion, and the welding rod cannot be moved as expected. As a result, the welded joint quality can be improved and the reliability can be improved.
[Brief description of the drawings]
1A and 1B are explanatory views of a main part of a bogie frame for a railway vehicle according to the present invention, in which FIG. 1A is a view seen from the front, FIG. d) is the figure which looked at the state which attached the main motor from the side.
FIGS. 2A and 2C are views for explaining a method of assembling a railcar bogie frame according to the present invention, FIG. 2B is a cross-sectional view taken along the line AA in FIG. 2D, and FIG. It is BB sectional drawing of).
FIG. 3 is an overall view of a conventional bogie frame for a railway vehicle as viewed from above.
4A and 4B are explanatory views of a main part of a conventional bogie frame for a railway vehicle, in which FIG. 4A is a diagram viewed from the front, FIG. 4B is a diagram viewed from a plane, and FIG.
FIG. 5 is a diagram for explaining an assembly procedure of a conventional main motor seat;
6A is a diagram for explaining a conventional method for assembling a bogie frame for a railway vehicle, and FIG. 6B is a cross-sectional view taken along line AA of FIG.
[Explanation of symbols]
1a Side beam 1b Side beam 2 Horizontal beam 4 Bogie frame 11 Main motor seat 11a Side plate 11b Front plate

Claims (3)

対をなす側梁と、これら側梁を連結する横梁と、この横梁に溶接により取付けられた主電動機受座を備えた鉄道車両用台車枠において、
前記主電動機受座を構成する前面板が、当該主電動機受座を構成する他の部材とは別部材となされ、
前記横梁と前記主電動機受座を構成する前記前面板を除いた他の部材との溶接が、これらそれぞれの部材の表裏両側から行なわれ、前記前面板と前記他の部材との溶接が最後に外側のみから行われたものであることを特徴とする鉄道車両用台車枠。In the bogie frame for a railway vehicle comprising a pair of side beams, a cross beam connecting these side beams, and a main motor seat attached to the cross beam by welding ,
The front plate constituting the main motor seat is a separate member from the other members constituting the main motor seat,
Welding with other members except for the front plate constituting the traction motor seat and said transverse beam is carried out from the front and back sides of each of the members, the welding end of said other member and the front plate A bogie frame for a rail vehicle characterized by being made only from the outside . 横梁に主電動機受座を溶接するに際し、
前面板を除く主電動機受座を構成する他の部材を横梁に溶接した後、
前面板を、前記主電動機受座を構成する他の部材と最後に溶接することを特徴とする請求項１記載の鉄道車両用台車枠の組立て方法。When welding the main motor seat to the cross beam,
After welding the other members constituting the traction motor seat excluding the front plate cross beam,
The front plate, the other members and assembly method according to claim 1 for a railway vehicle bogie frame, wherein that you last welding constituting the traction motor seat. 請求項１記載の鉄道車両用台車枠を備えたことを特徴とする鉄道車両用台車。Bogie for railway vehicles, characterized in that it includes a railway vehicle bogie frame 請 Motomeko 1 wherein.
JP2001153870A 2001-05-23 2001-05-23 Railway vehicle bogie frame, assembling method thereof, and railcar bogie Expired - Lifetime JP3873659B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001153870A JP3873659B2 (en) 2001-05-23 2001-05-23 Railway vehicle bogie frame, assembling method thereof, and railcar bogie

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001153870A JP3873659B2 (en) 2001-05-23 2001-05-23 Railway vehicle bogie frame, assembling method thereof, and railcar bogie

Publications (2)

Publication Number Publication Date
JP2002347620A JP2002347620A (en) 2002-12-04
JP3873659B2 true JP3873659B2 (en) 2007-01-24

Family

ID=18998316

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001153870A Expired - Lifetime JP3873659B2 (en) 2001-05-23 2001-05-23 Railway vehicle bogie frame, assembling method thereof, and railcar bogie

Country Status (1)

Country Link
JP (1) JP3873659B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013175716A1 (en) 2012-05-21 2013-11-28 新日鐵住金株式会社 Bogie frame for railway vehicle
WO2014027440A1 (en) 2012-08-13 2014-02-20 新日鐵住金株式会社 Truck frame for railroad vehicle

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4292980B2 (en) * 2003-12-18 2009-07-08 住友金属工業株式会社 Railcar bogie frame and railcar bogie
JP4305177B2 (en) * 2003-12-26 2009-07-29 住友金属工業株式会社 Method of evaluating strength of bogie frame and method of manufacturing bogie frame
JP4442518B2 (en) * 2005-06-09 2010-03-31 住友金属工業株式会社 Bogie frame for railway vehicles
JP2008055952A (en) * 2006-08-29 2008-03-13 Tokyu Car Corp Railroad vehicle truck structure and manufacturing method of the same
JP5227683B2 (en) * 2008-07-22 2013-07-03 日本車輌製造株式会社 Railcar bogie
CN102069816A (en) * 2010-12-27 2011-05-25 中国北车集团大连机车车辆有限公司 Motor hanger and urban rail vehicle bogie
CN102874269B (en) * 2012-09-29 2015-10-21 南车株洲电力机车有限公司 Seat under a kind of light rail bogie and motor suspension thereof
CN104044605A (en) * 2014-06-11 2014-09-17 中国北车集团大连机车车辆有限公司 Motor suspension of urban rail vehicle
CN106740898A (en) * 2016-12-12 2017-05-31 中车长春轨道客车股份有限公司 A kind of open rigid suspended flap seat of bogie motor
JP6864504B2 (en) * 2017-03-07 2021-04-28 川崎重工業株式会社 Bogie frame for railroad vehicles and railroad vehicles equipped with it
CN108216289A (en) * 2018-01-18 2018-06-29 中车长春轨道客车股份有限公司 Railcar tread brake bogie frame and the bogie with the framework

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013175716A1 (en) 2012-05-21 2013-11-28 新日鐵住金株式会社 Bogie frame for railway vehicle
JP2013241081A (en) * 2012-05-21 2013-12-05 Nippon Steel & Sumitomo Metal Corp Bogie frame for rolling stock
US9469313B2 (en) 2012-05-21 2016-10-18 Nippon Steel & Sumitomo Metal Corporation Bogie frame for railway vehicles
WO2014027440A1 (en) 2012-08-13 2014-02-20 新日鐵住金株式会社 Truck frame for railroad vehicle
KR20150023872A (en) 2012-08-13 2015-03-05 신닛테츠스미킨 카부시키카이샤 Truck frame for railroad vehicle
US9446775B2 (en) 2012-08-13 2016-09-20 Nippon Steel & Sumitomo Metal Corporation Bogie frame for railway vehicles

Also Published As

Publication number Publication date
JP2002347620A (en) 2002-12-04

Similar Documents

Publication Publication Date Title
JP3873659B2 (en) Railway vehicle bogie frame, assembling method thereof, and railcar bogie
JP5237270B2 (en) Dolly frame of rail vehicle
JPH06504013A (en) Welding connections between aluminum structural members and parts connected to them in automobiles, especially welding connections between two aluminum extrusions that are substantially perpendicular to each other.
US8297202B2 (en) Body frame structure of railway vehicle
JP4325530B2 (en) Suspension member
KR20150023872A (en) Truck frame for railroad vehicle
JP5650464B2 (en) Method for manufacturing railcar bogie
JP6620183B2 (en) Bogie frame for railway vehicles
JP4442518B2 (en) Bogie frame for railway vehicles
JP2012071764A (en) Battery mounting structure for vehicle
JP2000025655A (en) Support and reinforcement structure for automobile seat
JP3873664B2 (en) Vehicle frame structure
JPH05262225A (en) Manufacture of truck frame for railway rolling stock
JP3554231B2 (en) Extruded material joining structure
JP3545216B2 (en) Tailgate pillar lower body structure
JP2004352092A (en) Vehicular body frame structure
JP2006076552A (en) Frame connection structure of vehicle
JP3571537B2 (en) Cross member structure of automobile body frame
JPH07257436A (en) Body frame structure for automobile
JP2001233208A (en) Bogie for railway rolling stock and manufacturing method
JP3814552B2 (en) Body structure
JP2015085830A (en) Frame structure of vehicle seat
JP4101006B2 (en) Vehicle assembly method
JP4036430B2 (en) Auto body front structure
CN209870388U (en) Tramcar, 100% low-floor tramcar body underframe and end beam module

Legal Events

Date Code Title Description
A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20060120

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20060328

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20060522

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20061003

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20061016

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

Ref document number: 3873659

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20091102

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20101102

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20111102

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20121102

Year of fee payment: 6

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131102

Year of fee payment: 7

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131102

Year of fee payment: 7

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313111

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131102

Year of fee payment: 7

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

EXPY Cancellation because of completion of term