JP4014794B2

JP4014794B2 - Railway vehicle control device box

Info

Publication number: JP4014794B2
Application number: JP2000319755A
Authority: JP
Inventors: 田裕久戸; 畑節生桑
Original assignee: Toshiba Corp
Current assignee: Toshiba Corp
Priority date: 2000-10-19
Filing date: 2000-10-19
Publication date: 2007-11-28
Anticipated expiration: 2020-10-19
Also published as: JP2002120720A

Description

【０００１】
【発明の属する技術分野】
本発明は鉄道車両の制御装置用箱体に関し、より詳しくは、溶接作業を不要とすることにより、強度剛性および形状精度に優れるばかりでなく、防水処理が不要であり、かつ高い生産性を有する箱体を製造する技術に関する。
【０００２】
【従来の技術】
従来、鉄道車両の電力変換器、遮断器、トランス類等を含む制御装置は、箱体の内部に収納されるとともに、この箱体を車両の床下に吊り下げたり床上に設置したりすることによって鉄道車両に搭載される。
【０００３】
このような箱体は、重量計画値や客先仕様等に応じ、鋼材やステンレス鋼若しくはアルミニウム合金等の素材から材料を選択して製造される。
【０００４】
装置箱を鋼材から製造する場合は、コスト、作業性、材料の溶接性等を総合的に判断し、部材同士を電気溶接することによって組立てている。鋼材の溶接は一見簡単で確実に見えるが、溶接部分の内部を目視によって検査することができない難点がある。また、溶接部分の検査は浸透探傷試験、超音波探傷試験、放射線透過試験等によって行うことができるが、いずれも大掛かりな試験である上、試験担当者や試験設備等が限定される。さらに異種金属同士を溶接できないことに加え、溶接して装置箱が完成した後でないと塗装ができない等の様々な不都合を有している。
【０００５】
装置箱をステンレス鋼、特に一般的な１８−８ステンレス鋼（ＳＵＳ３０４）から製造する場合は、溶接時に７００〜８００℃に加熱された部分に炭化物が析出して粒間割れや粒間腐食が起きる。また、装置箱を鋼材から製造する場合と同様な不都合がある。
【０００６】
装置箱をアルミニウム合金から製造する場合も、異種金属溶接ができない、溶接検査に非破壊検査が必要である、試験担当者および試験設備が限定される等の不都合がある。また、鋼材と比較して約３倍も熱が逃げやすい、局部加熱がややむずかしい、溶融温度が低いので溶け落ちし易い、膨張係数が約２倍である、凝固収縮率が約１．５倍である等の材料特性を前提としつつ、装置箱の軽量化を実現するためにアルミ合金製の部材同士を電気溶接（ＴＩＧ溶接、ＭＩＧ溶接）することによって製造している。
【０００７】
アルミニウム合金を電気溶接すると、溶接によるひずみが生じるばかりでなく、合金によっては凝固するときに割れが発生する。また、溶融時に水素等のガスを吸収し易く、結果的に溶接部分の内部にブローホール（気孔）を生じたり、合金によっては加熱によって母材が弱く割れ易くなったりする等の多くの不都合がある。また、このアルミニウム合金製の部材同士を溶接することによって生じたひずみや反り等を矯正するために、装置箱の組み立てに要する時間に相当する時間を費やしている。矯正には機械的な方法や加熱等の方法があるが、材料特性や強度の変化、作業時間、設備等を総合的に判断すると良い結果には結びついていない。
【０００８】
【発明が解決しようとする課題】
すなわち、溶接によって製造される従来の鉄道車両の制御装置用箱体においては、電気溶接に伴って生じるひずみ、反り、母材割れ、母材軟化、溶接衰弱等の不都合を最小化し若しくは解消することについては考慮されておらず、溶接量の最小化、特殊な後処理、アルミニウムの押出成型材の併用、矯正治工具の使用、部材の局部的な加熱熱急冷等の一般的な改善に止まっており、装置箱のひずみ、寸法精度、作業工数の増大、材料の強度低下、試験検査が必要等の多大な不都合を有している。
【０００９】
そこで本発明の目的は、上述した従来技術が有する問題点を解消し、特殊な締結手段を用いることにより溶接による接合を不要とし、溶接に伴って母材および溶接部分に生じる悪影響や、歪みおよび反りを無くすとともに、溶接部分の内部検査や、変形の矯正作業、特殊な後処理等を不要とし、安価で箱体の強度および寸法精度に優れるとともに製造性を高めた鉄道車両の制御装置用箱体を提供することにある。
【００１０】
【課題を解決するための手段】
上記課題を解決する請求項１に記載の手段は、
鉄道車両の制御装置を収納するための箱体であって、
この箱体を鉄道車両の車体に支持する支持部材は、本体部分と第１の補強部材とを備えており、
前記本体部分は、
前記車体への取り付けに用いる取付孔が貫設されて水平に延びる取付部と、
前記箱体の上面に沿って前後方向に延びる上面部分と、
前記箱体の側面に沿って上下方向に延びる左右一対の側面部分と、を有し、
前記第１の補強部材は、
前記取付部の裏面に密着する水平部分と、
前記左右一対の側面部分にそれぞれ密着する左右一対の側方部分と、
前記箱体の側面に密着する縦壁部分と、を有し、
前記箱体、前記本体部分、および前記第１の補強部材は、互いに当接する部分に貫設された貫通孔内に挿通されて前記互いに当接する部分を相互に締結する締結手段を用いて一体に締結されていることを特徴とする。
【００１１】
また、請求項２に記載した手段は、請求項１に記載した鉄道車両の制御装置用箱体において、
前記支持部材が第２の補強部材をさらに備え、
この第２の補強部材は、
前記箱体の上面に密着する固定部分と、
前記支持部材の左右一対の側面部分にそれぞれ密着する左右一対の第２の側方部分と、
前記第１の補強部材の縦壁部分に密着する第２の縦壁部分と、を有しており、
前記箱体、前記本体部分、前記第１の補強部材、および第２の補強部材は、前記締結手段を用いて一体に締結されていることを特徴とする。
【００１２】
すなわち、請求項１，２に記載した鉄道車両の制御装置用箱体においては、支持部材の組立および箱体への固定を締結手段を用いて行うので、一切の溶接作業を不要とすることができる。
【００１３】
また、請求項３に記載の手段は、請求項１または２に記載の鉄道車両の制御装置用箱体において、支持部材を箱体に締結する複数の締結手段を等ピッチで前後左右に対称に配設することを特徴とする。
【００１４】
これにより、箱体に作用する前後左右の２方向の衝撃荷重および振動荷重に対し、締結手段による継手効率が等しくなるので、箱体に対する支持部材の荷重の方向性を問わない固定が可能となる。
【００１５】
なお、締結手段は、
前記貫通孔内に一方の側から挿通されると前記被締結部材の挿通方向前側の表面に当接する鍔部をその挿通方向後端に有するとともに、互いに平行に円周方向に延びる多数の係合凸条をその外周面に有する第１の軸部材と、
前記貫通孔内に挿通された前記第１の軸部材に嵌装された後に塑性変形しつつ縮径させられると、前記係合凸条と係合して前記第１の軸部材に対し軸線方向に相対変位不能に係止される環状部材と、を備え、
前記第１の軸部材を挿通方向前方に引っ張りつつ前記環状部材を前記被締結部材の挿通方向後側の表面に押圧しているときに前記環状部材を縮径させると、前記鍔部と前記環状部材とが前記被締結部材同士を挟持して締結するものとすることができる。
【００１６】
また、締結手段は、
前記貫通孔内に挿通される部分の挿通方向前端に大径部が形成された第２の軸部材と、前記第２の軸部材と共に前記貫通孔内に挿通されると前記被締結部材の挿通方向前側の表面に当接する鍔部をその挿通方向後端に有する、前記第２の軸部材の外周面に嵌装された第１の筒状部材と、を備え、
前記第２の軸部材および前記第１の筒状部材は、一体に前記貫通孔内に挿通した後、前記第１の筒状部材の鍔部を前記被締結部材の挿通方向前側の表面に押圧しつつ前記第２の軸部材を前記挿通方向後方に引っ張ると、前記第２の軸部材の大径部と係合して軸線方向に圧縮される前記第１の筒状部材が座屈してその軸線方向中央部が半径方向外側に膨出し、この膨出部分と前記第１の筒状部材の鍔部とが前記被締結部材同士を挟持して相互に締結するものとすることができる。
【００１７】
さらにまた、締結手段は、
前記貫通孔に挿通される部分の挿通方向前端に大径部が形成された第３の軸部材と、
前記第３の軸部材と共に前記貫通孔内に挿通されると前記被締結部材の挿通方向前側の表面に当接する鍔部をその挿通方向後端に有する、前記第３の軸部材の外周面に嵌装された第２の筒状部材と、を備え、
前記第３の軸部材および前記第２の筒状部材は、一体に前記貫通孔内に挿通した後、前記第２の筒状部材の鍔部を前記被締結部材の挿通方向前側の表面に押圧しつつ前記第３の軸部材を前記挿通方向後方に引っ張ると、前記第３の軸部材の大径部と係合して軸線方向に圧縮される前記第２の筒状部材の軸線方向前端が半径方向外側に膨出し、この膨出部分と前記第２の筒状部材の鍔部とが前記被締結部材同士を挟持して相互に締結するとともに、前記第３の軸部材は、前記第２の筒状部材の軸線方向前端を半径方向外側に膨出させた後、前記挿通方向後方への引っ張り力により前記大径部の基端部分で破断するものとすることができる。
【００１８】
【発明の実施の形態】
以下、本発明に係る鉄道車両の制御装置用箱体の各実施形態を、図１乃至図１５を参照して詳細に説明する。
なお、以下の説明においては、前述した従来技術と同一の部分に同一の符号を用いてその説明を省略するとともに、鉛直方向を上下方向、収納する制御装置を出し入れする方向を前後方向、水平でかつ前後方向に対して垂直な方向を左右方向と言う。
【００１９】
まず最初に図１及び図２を参照すると、本実施形態の鉄道車両の制御装置用箱体１００はアルミニウム合金製の板材（被締結部材）を組み合わせて製造したもので、天井板１と底板２および左右一対の側板３，４を相互に締結することにより箱状に成形されている。また、天井板１と底板２との間には中央仕切板５が介装されるとともに、この中央仕切板５と左右一対の側板３，４との間には左右の仕切板６，７が介装され、この箱体１００の全体強度を高めている。さらに、左右一対の側板３，４や中央仕切板５等に締結されるブラケット８，９により、鉄道車両の制御装置を構成する電力変換器１０等が箱体１００の各収納部１１内に装着される。
【００２０】
天井板１や底板２、左右一対の側板３，４、中央仕切板５および左右の仕切板６，７等の各板材同士を相互に締結する部分には、一方の板材の先端を折り曲げて形成したフランジがそれぞれ形成され、これらのフランジの表面に他方の板材を密着させた状態で両者を相互に締結するようになっている。
【００２１】
すなわち、左右一対の側板３，４の上端には、天井板１との締結のためにフランジ３ａ，４ａがそれぞれ立設されている。また、中央仕切板５には、天井板１および底板２との締結のためにフランジ５ａ，５ｂがそれぞれ立設されている。さらに左右の仕切板６，７には、天井板１と底板２および左右一対の側板３，４との締結のためにフランジ６ａ，６ｂ，６ｃ，６ｄおよび７ａ，７ｂ，７ｃ，７ｄがそれぞれ立設されている。
【００２２】
天井板１や底板２、左右一対の側板３，４、中央仕切板５および左右の仕切板６，７等の各板材同士が互いに当接する部分には、後述する第１の締結手段２０を挿通するための貫通孔が位置を合わせてそれぞれ貫設されている。そして、各板材同士を位置合わせした後、各貫通孔内に第１の締結手段２０を挿通させて各板材同士を相互に締結することにより、図１に示した箱体１００を完成させることができる。
【００２３】
第１の締結手段２０は、図３（ａ）に示したように、互いに位置合わせされた例えば天井板１の貫通孔１ｃおよび中央仕切板５のフランジ５ａの貫通孔５ｃ内に挿通される第１の軸部材２１と、この第１の軸部材２１に嵌装される環状部材２２とを備えている。
【００２４】
第１の軸部材２１は、硬鋼材料から製造された外径が１０ミリメートル程度の部材で、その軸部分２１ａの挿通方向後端（図示左端）に大径の鍔部２１ｂを有するとともに、互いに平行に円周方向に延びる多数の係合凸条２１ｃを軸部分２１ａの外周面に有している。この係合凸条２１ｃは、一般的なボルトのねじ山のように軸部分２１ａの軸線に対して傾斜して螺旋状に延びるものではなく、一つ一つが独立して軸部分２１ａの軸線に対して垂直に延びている。
【００２５】
環状部材２２は、第１の軸部材２１の材質より軟らかい軟鋼材料から製造された部材で、その中心孔２２ａの内径は係合凸条２１ｃの外径よりも０．３〜０．４ミリメートルだけ大きく設定されている。また、一般的なナットとは異なり、中心孔２２ａの内壁面は平滑である。
【００２６】
第１の締結手段２０を用いて天井板１と中央仕切板５とを締結する際には、第１の軸部材２１を天井板１の貫通孔１ｃと中央仕切板５の貫通孔５ｃ内に挿通させた後、第１の軸部材２１に環状部材２２を嵌装する。次いで、図３（ｂ）に示したように工具Ｔを用いて、第１の軸部材２１を矢印Ａで示すように挿通方向前方（図示右側）に引張りつつ、環状部材２２を矢印Ｂで示すように天井板１の挿通方向後側の表面１ｄに押圧する。その後、工具Ｔを用いて環状部材２２を塑性変形させつつ縮径させると、環状部材２２が第１の軸部材２１を抱着して係合凸条２１ｃと係合し、軸線方向に相対変位不能に固定される。すると、第１の軸部材２１には引張り方向の軸力が作用しているので、天井板１と中央仕切板５は、第１の軸部材２１の鍔部２１ｂと環状部材２２とにより挟持されて堅固に締結される。そして、図３（ｃ）に示したように、第１の軸部材２１が環状部材２２からはみ出した部分を切断した後、図示されない保護キャップを被せる。
【００２７】
このとき第１の締結手段２０は、天井板１と中央仕切板５を相互に締結する締結強度を第１の軸部材２１の軸力および剪断力によって発生させる構造であるから、第１の軸部材２１の外径および材質を適宜選択することにより、必要とする締結強度を容易に達成することができる。また、第１の軸部材２１の外周面に突設した多数の係合凸条２１ｃによって環状部材２２を係止する構造であるから、天井板１および中央仕切板５の厚みに作用されず、両者を相互に締結する作業を迅速かつ容易に行うことができる。また、環状部材２２を塑性変形させて縮径させることにより第１の軸部材２１に嵌着する構造であるから、一般的なボルトのように締結後に弛みが生じることもない。
【００２８】
次に図４を参照し、本実施形態の箱体１００の製造に用いる第２の締結手段３０について説明する。
【００２９】
図４（ａ）に示した第２の締結手段３０は、上述した第１の締結手段２０を用いる締結部位よりは要求される締結強度が低い締結部位に用いられるもので、互いに位置合わせされた一方の板材Ｘの貫通孔Ｘａおよび他方の板材Ｙの貫通孔Ｙａ内に挿通される第２の軸部材３１と、この第２の軸部材３１の外周面に嵌装された第１の筒状部材３２とを備えている。
【００３０】
第２の軸部材３１は、アルミ合金材料から製造された外径が６ミリメートル程度の部材で、その軸部分３１ａの挿通方向先端（図示左端）には大径部３１ｂが形成されている。また、第１の筒状部材３２が嵌装されている部分には、軸部分３１ａに負荷される引張り力によって破断する小径部３１ｃが形成されている。さらに、軸部分３１ａの挿通方向後方（図示右側）の外周面には、軸部分３１ａに引っ張り力を作用させるための工具Ｔが係合するねじ山状の工具保持部３１ｄが形成されている。
【００３１】
第１の筒状部材３２は、アルミ合金材料から製造された肉厚が３ミリメートル程度の円筒部材で、その円筒部分３２ａの挿通方向後端（図示右端）には貫通孔Ｘａ，Ｙａ内に挿通されると他方の板材Ｙの表面Ｙｂに当接する鍔部３２ｂが形成されている。
【００３２】
この第２の締結手段３０を用いて板材Ｘと板材Ｙとを締結する際には、板材Ｘの貫通孔Ｘａおよび他方の板材Ｙの貫通孔Ｙａ内に、第２の軸部材３１の先端部分と第１の筒状部材３２とを一体に挿通する。次いで図４（ｂ）に示したように、工具Ｔを用いて、矢印Ａで示すように第１の筒状部材３２を他方の板材Ｘの表面Ｘｂに押圧しつつ、第２の軸部材３１を挿通方向後方（図示右側）に引っ張る。すると、第２の軸部材３１の大径部３１ｂが第１の筒状部材３２の先端に係合し、その筒状部分３２ａを軸線方向に圧縮する。軸線方向の圧縮力が大きくなると筒状部分３２ａは座屈し、その軸線方向中央部が半径方向外側に膨出する。膨出部分３２ｃにも軸線方向の圧縮力が作用するので、膨出部分３２ｃは他方の板材Ｙの表面Ｙｂに密着する。これにより、一対の板材Ｘ，Ｙは膨出部分３２ｃと鍔部３２ｂとにより軸線方向に挟持されて相互に締結される。そして、第２の軸部材３２に作用する引張力が所定の値を超えると、図４（ｃ）に示したように軸部分３１ａの小径部３１ｃが破断する。なお小径部３１ｃは、鍔部３２ｂの近傍で破断し、両板材Ｘ，Ｙの貫通孔Ｘａ，Ｙａの内側には軸部分３１ａが残存するようになっている。
【００３３】
このとき第２の締結手段３０は、両板材Ｘ，Ｙを相互に締結する締結強度を、第１の筒状部材３２の軸力と第１の筒状部材３２および第２の軸部材３１の剪断力によって発生させる構造であるから、第１の筒状部材３２および第２の軸部材３１の寸法および材質を適宜選択することにより、必要とする締結強度を容易に達成することができる。また、第１の筒状部材３２の筒状部分３２ａの軸線方向中央部を半径方向外側に膨出させる構造であるから、この膨出部分３２ｃにも軸線方向の圧縮力を作用させることができ、第１の筒状部材３２の鍔部３２ｂと膨出部３２ｃとにより両板材Ｘ，Ｙを堅固に挟持しつつ締結することができる。また、第２の軸部材３１と第１の筒状部材３２とが一体に組み付けられていることに加えて、両板材Ｘ，Ｙの一方の側のみにおいて作業することができるから、両板材Ｘ，Ｙを締結する作業を容易に行うことができる。
【００３４】
次に図５を参照し、本実施形態の箱体１００の製造に用いる第３の締結手段４０について説明する。
【００３５】
図５（ａ）に示した第３の締結手段４０は、上述した第２の締結手段３０を用いる締結部位より要求される締結強度がさらに低い締結部位に用いられるもので、例えば天井板１の作業孔１２を閉鎖する蓋体１３を天井板１に固定するために用いられる。そして、この第３の締結手段４０は、互いに位置合わせされた天井板１の貫通孔１ｅと蓋体１３の貫通孔１３ａ内に挿通される第３の軸部材４１と、この第３の軸部材４１の外周面に嵌装された第２の筒状部材４２とを備えている。
【００３６】
第３の軸部材４１は、アルミ合金材料から製造された外径が３ミリメートル程度の部材で、その軸部分４１ａの挿通方向先端（図示左端）には大径部４１ｂが形成されている。
【００３７】
第２の筒状部材４２は、アルミ合金材料から製造された肉厚が１ミリメートル程度の円筒部材で、その円筒部分４２ａの挿通方向後端（図示右端）には天井板１および蓋体１３の貫通孔１ｅ，１３ａ内に挿通されると蓋体の表面１３ｂに当接する鍔部４２ｂが形成されている。
【００３８】
この第３の締結手段４０を用いて天井板１に蓋体１３を締結する際には、天井板１および蓋体１３の貫通孔１ｅ，１３ａ内に第３の軸部材４１の先端部分と第２の筒状部材４２とを一体に挿通する。次いで図５（ｂ）に示したように、工具Ｔを用いて、矢印Ａで示すように第２の筒状部材４２を蓋体１３の表面１３ｂに押圧しつつ、第３の軸部材４１を挿通方向後方（図示右側）に引っ張る。すると、第３の軸部材４２の大径部４１ｂが第２の筒状部材４２の先端に係合し、その筒状部分４２ａを軸線方向に圧縮する。そして軸線方向の圧縮力が大きくなると大径部４１ｂが筒状部分４２ａの先端に入り込み、筒状部分４２ａの先端を半径方向外側に膨出させる。これにより、天井板１および蓋体１３は膨出部分４２ｃと鍔部４２ｂとにより軸線方向に挟持されて相互に締結される。そして、第３の軸部材４１に作用する引張力が所定の値を超えると、図５（ｃ）に示したように軸部分４１ａが大径部４１ｂの基端で破断する。
【００３９】
このとき第３の締結手段４０は、天井板１および蓋体１３を相互に締結する締結強度を、第２の筒状部材４２の軸力と剪断力によって発生させる構造であるから、第２の筒状部材４２の寸法および材質を適宜選択することにより必要とする締結強度を容易に達成することができる。また、第３の軸部材４１と第２の筒状部材４２とが一体に組み付けられていることに加えて、天井板１および蓋体１３の一方の側のみにおいて作業することができるから、蓋体１３を天井板１に締結する作業を容易に行うことができる。
【００４０】
次に図６〜図９を参照し、本実施形態の箱体１００を鉄道車両の車体に支持する支持部材５０の構造について説明する。
【００４１】
図６に示した支持部材５０は、鉄道車両の車体に箱体１００を吊り下げた状態で支持するための吊り板であり、鋼鈑をプレス加工した本体部分５１および補強板５２から構成されている。
【００４２】
鉄道車両の車体への取り付けに用いる取付孔５１ａが貫設された本体部分５１の取付部５１ｂの裏面には、補強板５２の水平部分５２ａが密着している。また、取付部５１ｂの左右の両側縁から延設された左右一対の側方部分５１ｃ，５１ｄの裏面には、補強板５２の左右一対の側方部分５２ｂ，５２ｃが密着している。さらに、補強板５２の縦壁部分５２ｄは天井板１のフランジ１ｂに密着している。
【００４３】
図６〜図９に示したように、本体部分５１と補強板５２とを第１の締結手段２０を用いて締結することにより、支持部材５０は一体的に形成されている。また、本体部分５１の固定部分５１ｅが天井板１の上面に密着するとともに、補強板５２の縦壁部分５２ｄが天井板１のフランジ１ｂに密着しつつ、第１の締結手段２０によってそれぞれ天井板１に締結され固定されている。
【００４４】
このとき第１の締結手段２０は、前後左右に対称となるように複数列に配設されている。これにより、箱体１００に作用する前後左右の２方向の衝撃荷重および振動荷重に対して、第１の締結手段２０による継手効率が等しくなるので、荷重の方向性を問題とする必要なしに支持部材５０を箱体１００に固定することができる。
また、溶接作業を一切行うことなしに支持部材５０を組み立てつつ箱体１００に固定できるから、支持部材５０が熱変形することがない。これにより、支持部材５０を箱体１００に固定した後に取付孔５１ａをドリル加工する必要が無く、箱体１００の製造効率を高めることができる。
【００４５】
次に図１０〜図１３を参照し、本実施形態の箱体１００を鉄道車両の車体に支持する支持部材６０の構造について説明する。
【００４６】
図１０に示した支持部材６０は、鉄道車両の車体へ取り付ける部分を天井板１の表面よりも上方に位置させた吊り板であり、鋼鈑をプレス加工した本体部分６１と第１の補強板６２および第２の補強板６３とから構成されている。
【００４７】
すなわち、鉄道車両の車体への取り付けに用いる取付孔６１ａが貫設された本体部分６１の取付部６１ｂの裏面には、第１の補強板６２の水平部分６２ａが密着している。取付部６１ｂの左右の両側縁から延設された左右一対の側方部分６１ｃ，６１ｄの裏面には、第１の補強板６２の左右一対の側方部分６２ｂ，６２ｃがそれぞれ密着している。また、第１の補強板６２の縦壁部分６２ｄは天井板１のフランジ１ｂに密着している。
【００４８】
さらに、本体部分６１の左右一対の側方部分６１ｃ，６１ｄのうち、天井板１の表面に密着する部分の間には、第２の補強板６３が介装されている。第３の補強板６３の固定部分６３ａは、天井板１の表面に密着している。固定部分６３ａの左右の両側縁から上方に延設された左右一対の側方部分６３ｂ，６３ｃは、本体部分６１の左右一対の側方部分６１ｃ，６１ｄに密着している。また、第３の補強板６３の縦壁部分６３ｄは、第２の補強板６２の縦壁部分６２ｄに密着している。
【００４９】
図１０〜図１３に示したように、本体部分６１と第１の補強板６２および第２の補強板６３を第１の締結手段２０を用いて相互に締結することにより、支持部材６０が一体的に形成されている。また、第２の補強板６３の固定部分６３ａが天井板１の上面に密着するとともに、第１の補強板６２の縦壁部分６２ｄが天井板１のフランジ１ｂに密着しつつ、第１の締結手段２０によってそれぞれ天井板１に締結され固定されている。
【００５０】
このとき第１の締結手段２０は、前後左右に対称となるように複数列に配設されている。これにより、箱体１００に作用する前後左右の２方向の衝撃荷重および振動荷重に対して、第１の締結手段２０による継手効率が等しくなるので、荷重の方向性を問題とする必要なしに支持部材５０を箱体１００に固定することができる。また、溶接作業を一切行うことなしに支持部材６０を組み立てつつ箱体１００に固定できるから、支持部材６０が熱変形することがない。これにより、支持部材６０を箱体１００に固定した後に取付孔６１ａをドリル加工する必要が無く、箱体１００の製造効率を高めることができる。
【００５１】
次に、図１４および図１５を参照し、本実施形態の箱体１００の防水構造について説明する。
【００５２】
本実施形態の箱体１００においては、第１の締結手段２０を用いて相互に締結される一対の板材の一方の表面に防水シール剤を塗布してから、両板材を締結する。すなわち、図１４に示したように、天井板１と左側の側板３とを締結する際には、左側の側板３の上端部に立設したフランジ３ａの表面に防水シール剤を塗布した後、天井板１と左側の側板３とを一体に締結する。これにより、箱体１００を製造する工程の途中で防水処理を施すことが可能となるから、箱体１００の生産効率を大幅に高めることができる。なお、箱体１００に自然乾燥の塗装を施す場合には常温硬化型の防水シール剤を用いるが、箱体１００に焼付塗装を施す場合には熱硬化型の防水シール剤を用いる。
【００５３】
図１５に示した変形例においては、天井板１と左側の側板３とを締結する際に、左側の側板３の上端部に立設したフランジ３ａと天井板１とで防水パッキン８０を挟持するようにして、左側の側板３と天井板１とを相互に締結する。これにより、箱体１００を製造する工程の途中で防水処理を施すことが可能となるから、箱体１００の生産効率を大幅に高めることができる。なお、箱体に焼付塗装を施す場合には、塗装の焼付温度に耐え得る材料特性を有した防水パッキン部材を用いる。
【００５４】
以上、本発明に係る鉄道車両の制御装置用箱体の一実施形態ついて詳しく説明したが、本発明は上述した実施形態によって限定されるものではなく、種々の変更が可能であることは言うまでもない。例えば、上述した実施形態においては、箱体を構成する各板材をアルミニウム合金製としたが、必要とされる強度に応じて鋼鈑やステンレス鋼鈑等を用いることもできる。また、相互に締結される部材は板材に限定されない。また、各板材を相互に締結する部分の一部に溶接による接合を併用することにより、箱体の生産効率をより一層高めることもできる。
【００５５】
【発明の効果】
以上の説明から明らかなように、本発明の鉄道車両の制御装置用箱体は、その支持部材を構成する本体部分および補強部材を締結手段を用いて相互に締結して製造するものであるから、溶接によって接合する際に生じる素材の熱変形や変質を回避して、強度剛性に優れるとともに高い形状精度を有する箱体を高い生産効率で製造することができる。
【図面の簡単な説明】
【図１】本発明に係る一実施形態の鉄道車両の制御装置用箱体を示す全体斜視図。
【図２】図１に示した鉄道車両の制御装置用箱体の分解斜視図。
【図３】第１の締結手段の構造および作用を示す縦断面図。
【図４】第２の締結手段の構造および作用を示す縦断面図。
【図５】第３の締結手段の構造および作用を示す縦断面図。
【図６】天井板に取り付けた支持部材を拡大して示す斜視図。
【図７】図６に示した支持部材の平面図。
【図８】図６に示した支持部材の正面図。
【図９】図６に示した支持部材の右側面図。
【図１０】第２実施形態の支持部材を天井板に取り付けた状態を拡大して示す斜視図。
【図１１】図１０に示した支持部材の平面図。
【図１２】図１０に示した支持部材の正面図。
【図１３】図１０に示した支持部材の右側面図。
【図１４】天井板を側板に締結する前にフランジ部にシール剤を塗布した状態を示す斜視図。
【図１５】天井板を側板に締結する前に防水パッキンを装着する状態を示す斜視図。
【符号の説明】
Ａ，Ｂ引張力／押圧力
Ｔ工具
Ｘ，Ｙ被締結部材
１天井板
２底板
３，４側板
５中央仕切板
６，７仕切板
８，９ブラケット
１０制御装置
１１収納スペース
１２作業孔
１３カバー
２０第１の締結手段
２１軸部材
２１ａ軸部分
２１ｂ鍔部
２１ｃ係合凸条
２２環状部材
３０第２の締結手段
３１第２の軸部材
３１ａ軸部分
３１ｂ大径部
３１ｃ小径部
３１ｄ工具保持部
３２第１の筒状部材
３２ａ筒状部
３２ｂ鍔部
４０第３の締結手段
４１第３の軸部材
４１ａ軸部
４１ｂ大径部
４２第２の筒状部材
４２ａ筒状部分
４２ｂ鍔部
５０支持部材
５１本体部分
５２補強板６０支持部材
６１本体部分
６２，６３補強板
７０防水シール剤
８０防水パッキン
１００鉄道車両の制御装置用箱体[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a box for a control device of a railway vehicle. More specifically, by eliminating the need for welding work, the present invention not only provides excellent strength and rigidity, but also requires no waterproofing and has high productivity. The present invention relates to a technique for manufacturing a box.
[0002]
[Prior art]
  Conventionally, control devices including power converters, circuit breakers, transformers, etc. of railway vehicles are housed inside the box, and the box is suspended from or placed on the floor of the vehicle. Mounted on railway vehicles.
[0003]
  Such a box is manufactured by selecting a material from a material such as steel, stainless steel, or aluminum alloy according to a planned weight value, customer specifications, and the like.
[0004]
  When manufacturing an apparatus box from steel materials, cost, workability | operativity, the weldability of material, etc. are judged comprehensively, and it assembles by electrically welding members. Although welding of steel looks simple and reliable at first glance, there is a drawback that the inside of the welded part cannot be visually inspected. The welded portion can be inspected by a penetrant flaw detection test, an ultrasonic flaw detection test, a radiation transmission test, and the like. However, all of these are large-scale tests and test personnel and test equipment are limited. Furthermore, in addition to the fact that dissimilar metals cannot be welded, there are various inconveniences, such as the fact that painting cannot be performed unless the apparatus box is completed by welding.
[0005]
  When the device box is manufactured from stainless steel, particularly 18-8 stainless steel (SUS304), carbide precipitates on the portion heated to 700 to 800 ° C. during welding, causing intergranular cracking and intergranular corrosion. . Moreover, there exists the same inconvenience as the case where an apparatus box is manufactured from steel materials.
[0006]
  Even when the device box is manufactured from an aluminum alloy, there are inconveniences such as dissimilar metal welding being impossible, non-destructive inspection is required for welding inspection, test personnel and test facilities are limited. In addition, heat is about 3 times easier to escape compared to steel, local heating is somewhat difficult, melting temperature is low and it is easy to melt, expansion coefficient is about 2 times, solidification shrinkage rate is about 1.5 times In order to reduce the weight of the device box, the aluminum alloy members are manufactured by electrical welding (TIG welding, MIG welding).
[0007]
  When an aluminum alloy is electrically welded, not only distortion due to welding occurs but also cracks occur when solidifying depending on the alloy. In addition, it easily absorbs gas such as hydrogen at the time of melting, and as a result, blow holes (pores) are formed inside the welded part, and depending on the alloy, the base material is weak and easily broken by heating. is there. Further, in order to correct distortion, warpage, and the like caused by welding the aluminum alloy members, time corresponding to the time required for assembling the device box is spent. There are mechanical methods and heating methods for correction. However, it is not linked to good results by comprehensively judging changes in material characteristics and strength, working time, equipment, and the like.
[0008]
[Problems to be solved by the invention]
  In other words, in conventional railcar control device boxes manufactured by welding, the disadvantages such as distortion, warpage, cracking of the base metal, softening of the base metal, weakening of the weld, etc. caused by electric welding should be minimized or eliminated. Is not taken into consideration, and it is limited to general improvements such as minimizing welding amount, special post-processing, combined use of aluminum extrusion molding materials, use of orthodontic jigs, and local heating and quenching of parts. In addition, there are many inconveniences such as distortion of the device box, dimensional accuracy, increase in work man-hours, reduction in material strength, and necessity of test inspection.
[0009]
  Accordingly, an object of the present invention is to eliminate the above-mentioned problems of the prior art, eliminate the need for joining by welding by using a special fastening means, and adverse effects, distortions, and A box for railway vehicle control devices that eliminates warping, eliminates the need for internal inspection of welded parts, deformation correction work, special post-processing, etc., is inexpensive, has excellent box strength and dimensional accuracy, and is highly manufacturable. To provide a body.
[0010]
[Means for Solving the Problems]
  The means according to claim 1 for solving the above-mentioned problem is as follows.
  A box for storing a railway vehicle control device,
  The support member that supports the box on the vehicle body of the railway vehicle includes a main body portion and a first reinforcing member,
  The body portion is
A mounting portion extending horizontally through a mounting hole used for mounting to the vehicle body;
An upper surface portion extending in the front-rear direction along the upper surface of the box;
A pair of left and right side portions extending in the vertical direction along the side surface of the box,
  The first reinforcing member is
A horizontal portion closely contacting the back surface of the mounting portion;
A pair of left and right side portions closely contacting the pair of left and right side portions, and
A vertical wall portion closely contacting the side surface of the box,
  The box body, the main body portion, and the first reinforcing member are integrated with each other by using fastening means that are inserted into through-holes penetrating the portions that contact each other and fasten the portions that contact each other. It is characterized by being fastened.
[0011]
  The means described in claim 2 is the box for a railway vehicle control device according to claim 1,
  The support member further comprises a second reinforcing member;
  This second reinforcing member is
A fixed portion that is in close contact with the upper surface of the box;
A pair of left and right second side portions that are in close contact with the pair of left and right side portions of the support member;
A second vertical wall portion closely contacting the vertical wall portion of the first reinforcing member,
  The box, the main body portion, the first reinforcing member, and the second reinforcing member are integrally fastened using the fastening means.
[0012]
  That is, in the railcar control device box described in claims 1 and 2,Since the support member is assembled and fixed to the box using the fastening means, no welding work is required.
[0013]
  According to a third aspect of the present invention, there is provided the control vehicle box for a railway vehicle according to the first or second aspect, wherein a plurality of fastening means for fastening the support member to the box are arranged at an equal pitch.Back and forthThey are arranged symmetrically.
[0014]
As a result, the joint efficiency by the fastening means is equal to the impact load and vibration load in the two directions of front, rear, left and right acting on the box, so that fixing regardless of the direction of the load of the support member on the box becomes possible. .
[0015]
  The fastening means is
  A large number of engagements extending in the circumferential direction in parallel with each other and having a collar portion at the rear end in the insertion direction that comes into contact with the front surface in the insertion direction of the fastened member when inserted into the through hole from one side A first shaft member having a ridge on its outer peripheral surface;
  When the diameter is reduced while being plastically deformed after being fitted to the first shaft member inserted into the through-hole, the shaft engages with the engaging protrusion and is axial with respect to the first shaft member. And an annular member that is locked so as not to be relatively displaceable,
  When the diameter of the annular member is reduced when the annular member is pressed against the surface on the rear side in the insertion direction of the fastened member while pulling the first shaft member forward in the insertion direction, the flange portion and the annular shape The member clamps the fastened members togetherCan be.
[0016]
  The fastening means is
  A second shaft member having a large-diameter portion formed at the front end in the insertion direction of a portion inserted into the through hole; and insertion of the fastened member when inserted into the through hole together with the second shaft member A first tubular member fitted on the outer peripheral surface of the second shaft member, having a collar portion in contact with the front surface in the insertion direction at the rear end in the insertion direction;
  After the second shaft member and the first cylindrical member are integrally inserted into the through hole, the flange portion of the first cylindrical member is pressed against the front surface of the fastened member in the insertion direction. However, when the second shaft member is pulled rearward in the insertion direction, the first tubular member that is engaged with the large-diameter portion of the second shaft member and compressed in the axial direction buckles. The axial center portion bulges outward in the radial direction, and the bulged portion and the flange portion of the first tubular member clamp the members to be fastened together and fasten each other.Can be.
[0017]
  Furthermore, the fastening means is:
  A third shaft member having a large diameter portion formed at the front end in the insertion direction of the portion inserted through the through hole;
  On the outer peripheral surface of the third shaft member having a flange at the rear end in the insertion direction when the third shaft member is inserted into the through-hole together with the third shaft member at the rear end in the insertion direction. A second tubular member fitted,
  After the third shaft member and the second cylindrical member are integrally inserted into the through hole, the flange portion of the second cylindrical member is pressed against the front surface of the fastened member in the insertion direction. However, when the third shaft member is pulled rearward in the insertion direction, the front end in the axial direction of the second tubular member that is engaged with the large diameter portion of the third shaft member and compressed in the axial direction is The bulging portion bulges outward in the radial direction, and the bulging portion and the flange portion of the second cylindrical member sandwich and fasten the fastened members together, and the third shaft member is After the front end of the cylindrical member in the axial direction bulges outward in the radial direction, it is broken at the proximal end portion of the large-diameter portion by the pulling force backward in the insertion directionCan be.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a railcar control device box according to the present invention will be described in detail with reference to FIGS. 1 to 15.
  In the following description, the same reference numerals are used for the same parts as those in the prior art described above, and the description thereof is omitted. In addition, the vertical direction is the vertical direction, and the direction in which the control device is stored is taken in and out. The direction perpendicular to the front-rear direction is referred to as the left-right direction.
[0019]
  First, referring to FIG. 1 and FIG. 2, the railcar control device box 100 of the present embodiment is manufactured by combining aluminum alloy plates (fastened members), and the ceiling plate 1 and the bottom plate 2. And a pair of left and right side plates 3 and 4 are fastened to each other to form a box shape. A central partition plate 5 is interposed between the ceiling plate 1 and the bottom plate 2, and left and right partition plates 6, 7 are provided between the central partition plate 5 and the pair of left and right side plates 3, 4. The overall strength of the box 100 is increased. Further, the power converter 10 and the like constituting the control device of the railway vehicle are mounted in each storage portion 11 of the box body 100 by brackets 8 and 9 fastened to the pair of left and right side plates 3 and 4 and the central partition plate 5 and the like. Is done.
[0020]
  At the portion where the plate members such as the ceiling plate 1 and the bottom plate 2, the pair of left and right side plates 3 and 4, the central partition plate 5 and the left and right partition plates 6 and 7 are mutually fastened, the tip of one plate material is bent. The flanges are respectively formed, and the two plates are fastened to each other in a state where the other plate is in close contact with the surface of these flanges.
[0021]
  That is, flanges 3 a and 4 a are respectively provided upright at the upper ends of the pair of left and right side plates 3 and 4 for fastening with the ceiling plate 1. Further, flanges 5 a and 5 b are erected on the central partition plate 5 for fastening with the ceiling plate 1 and the bottom plate 2, respectively. Further, flanges 6a, 6b, 6c, 6d and 7a, 7b, 7c, 7d are respectively provided on the left and right partition plates 6, 7 for fastening the ceiling plate 1, the bottom plate 2 and the pair of left and right side plates 3, 4. It is installed.
[0022]
  A first fastening means 20 to be described later is inserted into a portion where the plate members such as the ceiling plate 1 and the bottom plate 2, the pair of left and right side plates 3 and 4, the central partition plate 5 and the left and right partition plates 6 and 7 are in contact with each other. The through-holes for carrying out are aligned and positioned. And after aligning each board | plate material, the box 100 shown in FIG. 1 can be completed by inserting the 1st fastening means 20 in each through-hole, and fastening each board | plate material mutually. it can.
[0023]
  As shown in FIG. 3A, the first fastening means 20 is inserted into, for example, the through hole 1 c of the ceiling plate 1 and the through hole 5 c of the flange 5 a of the central partition plate 5 aligned with each other. 1 shaft member 21 and an annular member 22 fitted to the first shaft member 21 are provided.
[0024]
  The first shaft member 21 is a member manufactured from a hard steel material and has an outer diameter of about 10 millimeters. The first shaft member 21 has a large-diameter flange 21b at the rear end (left end in the drawing) of the shaft portion 21a and A large number of engaging protrusions 21c extending in the circumferential direction in parallel are provided on the outer peripheral surface of the shaft portion 21a. The engaging ridges 21c do not extend in a spiral manner with an inclination with respect to the axis of the shaft portion 21a, unlike a screw thread of a general bolt, and each of the engaging ridges 21c independently extends to the axis of the shaft portion 21a. On the other hand, it extends vertically.
[0025]
  The annular member 22 is a member manufactured from a mild steel material softer than the material of the first shaft member 21, and the inner diameter of the center hole 22a is only 0.3 to 0.4 millimeters than the outer diameter of the engaging protrusion 21c. It is set large. Further, unlike a general nut, the inner wall surface of the center hole 22a is smooth.
[0026]
  When the ceiling plate 1 and the central partition plate 5 are fastened using the first fastening means 20, the first shaft member 21 is placed in the through hole 1 c of the ceiling plate 1 and the through hole 5 c of the central partition plate 5. After being inserted, the annular member 22 is fitted to the first shaft member 21. Next, using the tool T as shown in FIG. 3 (b), the first shaft member 21 is pulled forward (right side in the drawing) as shown by the arrow A, and the annular member 22 is shown by the arrow B. In this way, the surface 1d on the rear side in the insertion direction of the ceiling board 1 is pressed. Thereafter, when the diameter of the annular member 22 is reduced while being plastically deformed using the tool T, the annular member 22 embeds the first shaft member 21 and engages with the engaging protrusion 21c, and is relatively displaced in the axial direction. Fixed to impossible. Then, since the axial force in the pulling direction acts on the first shaft member 21, the ceiling plate 1 and the central partition plate 5 are sandwiched between the flange portion 21 b of the first shaft member 21 and the annular member 22. It is concluded firmly. Then, as shown in FIG. 3C, after the first shaft member 21 cuts the portion protruding from the annular member 22, a protective cap (not shown) is put on.
[0027]
  At this time, the first fastening means 20 has a structure in which the fastening strength for fastening the ceiling plate 1 and the central partition plate 5 to each other is generated by the axial force and shearing force of the first shaft member 21. The required fastening strength can be easily achieved by appropriately selecting the outer diameter and material of the member 21. Moreover, since it is a structure which latches the cyclic | annular member 22 with many engaging protrusions 21c protrudingly provided in the outer peripheral surface of the 1st shaft member 21, it does not act on the thickness of the ceiling board 1 and the center partition plate 5, The operation | work which fastens both mutually can be performed quickly and easily. In addition, since the annular member 22 is plastically deformed to reduce the diameter, the annular member 22 is fitted to the first shaft member 21, so that no loosening occurs after fastening as in a general bolt.
[0028]
  Next, with reference to FIG. 4, the 2nd fastening means 30 used for manufacture of the box 100 of this embodiment is demonstrated.
[0029]
  The second fastening means 30 shown in FIG. 4A is used for a fastening part that requires a lower fastening strength than the fastening part using the first fastening means 20 described above, and is aligned with each other. A second shaft member 31 inserted into the through hole Xa of one plate material X and the through hole Ya of the other plate material Y, and a first tubular shape fitted to the outer peripheral surface of the second shaft member 31 Member 32.
[0030]
  The second shaft member 31 is a member manufactured from an aluminum alloy material and having an outer diameter of about 6 millimeters. A large-diameter portion 31b is formed at the distal end (left end in the drawing) of the shaft portion 31a. Moreover, the small diameter part 31c fractured | ruptured by the tensile force loaded on the axial part 31a is formed in the part by which the 1st cylindrical member 32 is fitted. Furthermore, a thread-like tool holding portion 31d that engages with a tool T for applying a tensile force to the shaft portion 31a is formed on the outer peripheral surface at the rear (right side in the drawing) of the shaft portion 31a.
[0031]
  The first cylindrical member 32 is a cylindrical member manufactured from an aluminum alloy material and has a thickness of about 3 mm. The cylindrical portion 32a is inserted into the through holes Xa and Ya at the rear end (right end in the drawing) of the cylindrical portion 32a. As a result, a flange portion 32b is formed that contacts the surface Yb of the other plate material Y.
[0032]
  When the plate member X and the plate member Y are fastened using the second fastening means 30, the tip portion of the second shaft member 31 is inserted into the through hole Xa of the plate member X and the through hole Ya of the other plate member Y. And the first tubular member 32 are integrally inserted. Next, as shown in FIG. 4B, the second shaft member 31 is pressed using the tool T while pressing the first cylindrical member 32 against the surface Xb of the other plate member X as indicated by an arrow A. Is pulled backward in the insertion direction (right side in the figure). Then, the large diameter portion 31b of the second shaft member 31 is engaged with the tip of the first cylindrical member 32, and the cylindrical portion 32a is compressed in the axial direction. When the compressive force in the axial direction increases, the cylindrical portion 32a buckles, and the axial central portion bulges outward in the radial direction. Since the axial compressive force also acts on the bulging portion 32c, the bulging portion 32c is in close contact with the surface Yb of the other plate Y. Thereby, a pair of board | plate materials X and Y are clamped in the axial direction by the bulging part 32c and the collar part 32b, and are mutually fastened. When the tensile force acting on the second shaft member 32 exceeds a predetermined value, the small diameter portion 31c of the shaft portion 31a is broken as shown in FIG. The small-diameter portion 31c is broken in the vicinity of the flange portion 32b, and the shaft portion 31a remains inside the through holes Xa and Ya of the both plate materials X and Y.
[0033]
  At this time, the second fastening means 30 has a fastening strength for fastening the two plate materials X and Y to each other with the axial force of the first cylindrical member 32 and the first cylindrical member 32 and the second shaft member 31. Since the structure is generated by a shearing force, the required fastening strength can be easily achieved by appropriately selecting the dimensions and materials of the first cylindrical member 32 and the second shaft member 31. In addition, since the central portion in the axial direction of the tubular portion 32a of the first tubular member 32 is bulged outward in the radial direction, a compressive force in the axial direction can be applied to the bulged portion 32c. The plate members X and Y can be fastened and clamped by the flange portion 32b and the bulging portion 32c of the first cylindrical member 32. In addition to the fact that the second shaft member 31 and the first cylindrical member 32 are integrally assembled, it is possible to work only on one side of both the plate materials X and Y. , Y can be easily performed.
[0034]
  Next, with reference to FIG. 5, the 3rd fastening means 40 used for manufacture of the box 100 of this embodiment is demonstrated.
[0035]
  The 3rd fastening means 40 shown to Fig.5 (a) is used for the fastening site | part further lower than the fastening site | part requested | required from the fastening site | part using the 2nd fastening means 30 mentioned above. The lid 13 for closing the working hole 12 is used to fix the ceiling plate 1 to the ceiling plate 1. The third fastening means 40 includes a third shaft member 41 inserted into the through hole 1e of the ceiling plate 1 and the through hole 13a of the lid body 13 which are aligned with each other, and the third shaft member. 41 and a second tubular member 42 fitted on the outer peripheral surface of 41.
[0036]
  The third shaft member 41 is a member manufactured from an aluminum alloy material and having an outer diameter of about 3 millimeters. A large-diameter portion 41b is formed at the distal end (left end in the drawing) of the shaft portion 41a.
[0037]
  The second cylindrical member 42 is a cylindrical member manufactured from an aluminum alloy material and having a thickness of about 1 mm. The ceiling portion 1 and the lid 13 are provided at the rear end (right end in the drawing) of the cylindrical portion 42a. When inserted into the through holes 1e and 13a, a flange portion 42b is formed which comes into contact with the surface 13b of the lid.
[0038]
  When the lid body 13 is fastened to the ceiling plate 1 using the third fastening means 40, the tip end portion of the third shaft member 41 and the first end portion of the third shaft member 41 are inserted into the through holes 1e and 13a of the ceiling plate 1 and the lid body 13. The two cylindrical members 42 are inserted integrally. Next, as shown in FIG. 5B, the third shaft member 41 is moved using the tool T while pressing the second cylindrical member 42 against the surface 13 b of the lid body 13 as indicated by an arrow A. Pull backward in the insertion direction (right side in the figure). Then, the large diameter portion 41b of the third shaft member 42 is engaged with the tip of the second cylindrical member 42, and the cylindrical portion 42a is compressed in the axial direction. When the compressive force in the axial direction increases, the large diameter portion 41b enters the tip of the cylindrical portion 42a, and the tip of the cylindrical portion 42a bulges outward in the radial direction. Thereby, the ceiling board 1 and the cover body 13 are clamped mutually by being clamped by the bulging part 42c and the collar part 42b in the axial direction. When the tensile force acting on the third shaft member 41 exceeds a predetermined value, the shaft portion 41a breaks at the proximal end of the large diameter portion 41b as shown in FIG. 5 (c).
[0039]
  At this time, since the third fastening means 40 has a structure that generates the fastening strength for fastening the ceiling plate 1 and the lid 13 to each other by the axial force and the shearing force of the second cylindrical member 42, The required fastening strength can be easily achieved by appropriately selecting the dimensions and material of the cylindrical member 42. In addition to the fact that the third shaft member 41 and the second cylindrical member 42 are integrally assembled, it is possible to work only on one side of the ceiling board 1 and the lid body 13, so that the lid The operation | work which fastens the body 13 to the ceiling board 1 can be performed easily.
[0040]
  Next, the structure of the support member 50 that supports the box body 100 of this embodiment on the vehicle body of the railway vehicle will be described with reference to FIGS.
[0041]
  The support member 50 shown in FIG. 6 is a suspension plate for supporting the box body 100 in a suspended state on the body of the railway vehicle. Yes.
[0042]
  The horizontal portion 52a of the reinforcing plate 52 is in close contact with the back surface of the attachment portion 51b of the main body portion 51 through which the attachment hole 51a used for attachment to the vehicle body of the railway vehicle is provided. The pair of left and right side portions 52b and 52c of the reinforcing plate 52 are in close contact with the back surfaces of the pair of left and right side portions 51c and 51d extending from the left and right side edges of the mounting portion 51b. Further, the vertical wall portion 52 d of the reinforcing plate 52 is in close contact with the flange 1 b of the ceiling plate 1.
[0043]
  As shown in FIGS. 6 to 9, the support member 50 is integrally formed by fastening the main body portion 51 and the reinforcing plate 52 using the first fastening means 20. In addition, the fixed portion 51e of the main body portion 51 is in close contact with the upper surface of the ceiling plate 1, and the vertical wall portion 52d of the reinforcing plate 52 is in close contact with the flange 1b of the ceiling plate 1, while the ceiling plate 1 Fastened to 1 and fixed.
[0044]
  At this time, the first fastening means 20 is arranged in a plurality of rows so as to be symmetrical in the front-rear and left-right directions. As a result, the joint efficiency by the first fastening means 20 is equal to the impact load and vibration load in the two directions of front, rear, left and right acting on the box body 100, so that it is supported without the need for the directionality of the load. The member 50 can be fixed to the box body 100.
  Further, since the support member 50 can be fixed to the box body 100 without being welded at all, the support member 50 is not thermally deformed. Thereby, it is not necessary to drill the mounting hole 51a after fixing the support member 50 to the box body 100, and the manufacturing efficiency of the box body 100 can be improved.
[0045]
  Next, the structure of the support member 60 that supports the box body 100 of the present embodiment on the vehicle body of the railway vehicle will be described with reference to FIGS.
[0046]
  A support member 60 shown in FIG. 10 is a suspension plate in which a portion to be attached to the vehicle body of a railway vehicle is positioned above the surface of the ceiling plate 1. 62 and a second reinforcing plate 63.
[0047]
  That is, the horizontal portion 62a of the first reinforcing plate 62 is in close contact with the back surface of the attachment portion 61b of the main body portion 61 through which the attachment hole 61a used for attachment to the vehicle body of the railway vehicle is provided. The pair of left and right side portions 62b and 62c of the first reinforcing plate 62 are in close contact with the back surfaces of the pair of left and right side portions 61c and 61d extending from the left and right side edges of the mounting portion 61b. Further, the vertical wall portion 62 d of the first reinforcing plate 62 is in close contact with the flange 1 b of the ceiling plate 1.
[0048]
  Further, a second reinforcing plate 63 is interposed between portions of the pair of left and right side portions 61 c and 61 d of the main body portion 61 that are in close contact with the surface of the ceiling plate 1. The fixed portion 63 a of the third reinforcing plate 63 is in close contact with the surface of the ceiling plate 1. A pair of left and right side portions 63b and 63c extending upward from the left and right side edges of the fixed portion 63a are in close contact with the pair of left and right side portions 61c and 61d of the main body portion 61. Further, the vertical wall portion 63 d of the third reinforcing plate 63 is in close contact with the vertical wall portion 62 d of the second reinforcing plate 62.
[0049]
  As shown in FIGS. 10 to 13, the support member 60 is integrated by fastening the main body portion 61, the first reinforcing plate 62, and the second reinforcing plate 63 with each other using the first fastening means 20. Is formed. In addition, the fixed portion 63a of the second reinforcing plate 63 is in close contact with the upper surface of the ceiling plate 1, and the vertical wall portion 62d of the first reinforcing plate 62 is in close contact with the flange 1b of the ceiling plate 1 while performing the first fastening. Each means 20 is fastened and fixed to the ceiling plate 1.
[0050]
  At this time, the first fastening means 20 is arranged in a plurality of rows so as to be symmetrical in the front-rear and left-right directions. As a result, the joint efficiency by the first fastening means 20 is equal to the impact load and vibration load in the two directions of front, rear, left and right acting on the box body 100, so that it is supported without the need for the directionality of the load. The member 50 can be fixed to the box body 100. Further, since the support member 60 can be fixed to the box body 100 without assembling the support member 60 without any welding work, the support member 60 is not thermally deformed. Thereby, it is not necessary to drill the mounting hole 61a after fixing the support member 60 to the box body 100, and the manufacturing efficiency of the box body 100 can be improved.
[0051]
  Next, with reference to FIG. 14 and FIG. 15, the waterproof structure of the box body 100 of this embodiment is demonstrated.
[0052]
  In the box body 100 of the present embodiment, a waterproof sealant is applied to one surface of a pair of plate members that are fastened to each other using the first fastening means 20, and then both plate materials are fastened. That is, as shown in FIG. 14, when the ceiling plate 1 and the left side plate 3 are fastened, after applying a waterproof sealant to the surface of the flange 3a erected on the upper end of the left side plate 3, The ceiling plate 1 and the left side plate 3 are fastened together. Thereby, since it becomes possible to perform waterproofing in the middle of the process which manufactures the box 100, the production efficiency of the box 100 can be improved significantly. When the box body 100 is naturally dried, a room temperature curable waterproof sealant is used. When the box body 100 is baked, a thermosetting waterproof sealant is used.
[0053]
  In the modification shown in FIG. 15, when the ceiling plate 1 and the left side plate 3 are fastened, the waterproof packing 80 is sandwiched between the flange 3 a erected on the upper end portion of the left side plate 3 and the ceiling plate 1. In this way, the left side plate 3 and the ceiling plate 1 are fastened to each other. Thereby, since it becomes possible to perform a waterproofing process in the middle of the process which manufactures the box 100, the production efficiency of the box 100 can be improved significantly. In addition, when performing baking coating to a box, the waterproof packing member which has the material characteristic which can endure the baking temperature of coating is used.
[0054]
  As mentioned above, although one embodiment of the box for a railway vehicle control device according to the present invention was described in detail, it is needless to say that the present invention is not limited to the above-described embodiment, and various modifications are possible. . For example, in the above-described embodiment, each plate material constituting the box is made of an aluminum alloy, but a steel plate, a stainless steel plate, or the like can be used according to the required strength. Moreover, the member fastened mutually is not limited to a board | plate material. In addition, the box production efficiency can be further enhanced by using joint by welding together with a part of the portion where the plate members are fastened to each other.
[0055]
【The invention's effect】
  As is apparent from the above description, the rail vehicle control device box of the present invention isA main body portion and a reinforcing member constituting the support memberBecause it is manufactured by fastening with each other using fastening means, it avoids thermal deformation and alteration of materials that occur when joining by welding, and high production of boxes with excellent strength and rigidity and high shape accuracy It can be manufactured with efficiency.
[Brief description of the drawings]
FIG. 1 is an overall perspective view showing a control vehicle box for a railway vehicle according to an embodiment of the present invention.
FIG. 2 is an exploded perspective view of the railcar control device box shown in FIG.
FIG. 3 is a longitudinal sectional view showing the structure and operation of the first fastening means.
FIG. 4 is a longitudinal sectional view showing the structure and operation of second fastening means.
FIG. 5 is a longitudinal sectional view showing the structure and operation of a third fastening means.
FIG. 6 is an enlarged perspective view showing a support member attached to the ceiling board.
7 is a plan view of the support member shown in FIG. 6. FIG.
8 is a front view of the support member shown in FIG. 6. FIG.
9 is a right side view of the support member shown in FIG. 6. FIG.
FIG. 10 is an enlarged perspective view showing a state where the support member of the second embodiment is attached to the ceiling board.
11 is a plan view of the support member shown in FIG.
12 is a front view of the support member shown in FIG.
13 is a right side view of the support member shown in FIG.
FIG. 14 is a perspective view showing a state in which a sealing agent is applied to the flange portion before the ceiling plate is fastened to the side plate.
FIG. 15 is a perspective view showing a state in which waterproof packing is attached before the ceiling plate is fastened to the side plate.
[Explanation of symbols]
A, B Tensile force / Pressing force
T tool
X, Y Fastened member
1 Ceiling board
2 Bottom plate
3, 4 side plate
5 Center divider
6,7 divider
8,9 Bracket
10 Control device
11 Storage space
12 Working hole
13 Cover
20 First fastening means
21 Shaft member
21a Shaft part
21b Isobe
21c Engagement ridge
22 annular member
30 Second fastening means
31 Second shaft member
31a Shaft part
31b Large diameter part
31c Small diameter part
31d Tool holder
32 1st cylindrical member
32a Tubular part
32b Isobe
40 Third fastening means
41 Third shaft member
41a Shaft
41b Large diameter part
42 Second cylindrical member
42a Tubular part
42b
50 Support members
51 Body part
52 Reinforcing plate 60 Support member
61 Body
62,63 Reinforcing plate
70 Waterproof sealant
80 waterproof packing
100 Railway vehicle control device box

Claims

鉄道車両の制御装置を収納するための箱体であって、
この箱体を鉄道車両の車体に支持する支持部材は、本体部分と第１の補強部材とを備えており、
前記本体部分は、
前記車体への取り付けに用いる取付孔が貫設されて水平に延びる取付部と、
前記箱体の上面に沿って前後方向に延びる上面部分と、
前記箱体の側面に沿って上下方向に延びる左右一対の側面部分と、を有し、
前記第１の補強部材は、
前記取付部の裏面に密着する水平部分と、
前記左右一対の側面部分にそれぞれ密着する左右一対の側方部分と、
前記箱体の側面に密着する縦壁部分と、を有し、
前記箱体、前記本体部分、および前記第１の補強部材は、互いに当接する部分に貫設された貫通孔内に挿通されて前記互いに当接する部分を相互に締結する締結手段を用いて一体に締結されていることを特徴とする鉄道車両の制御装置用箱体。 A box for storing a railway vehicle control device,
The support member that supports the box on the vehicle body of the railway vehicle includes a main body portion and a first reinforcing member,
The body portion is
A mounting portion extending horizontally through a mounting hole used for mounting to the vehicle body;
An upper surface portion extending in the front-rear direction along the upper surface of the box;
A pair of left and right side portions extending in the vertical direction along the side surface of the box,
The first reinforcing member is
A horizontal portion closely contacting the back surface of the mounting portion;
A pair of left and right side portions closely contacting the pair of left and right side portions, and
A vertical wall portion closely contacting the side surface of the box,
The box body, the main body portion, and the first reinforcing member are integrally inserted using a fastening means that is inserted into a through-hole penetrating the portion that contacts each other and fastens the portions that contact each other. A box for a control device of a railway vehicle characterized by being fastened.

前記支持部材が第２の補強部材をさらに備え、The support member further comprises a second reinforcing member;
この第２の補強部材は、This second reinforcing member is
前記箱体の上面に密着する固定部分と、A fixed portion that is in close contact with the top surface of the box;
前記本体部分の左右一対の側面部分にそれぞれ密着する左右一対の第２の側方部分と、A pair of left and right second side portions that are in close contact with the pair of left and right side portions of the main body portion, and
前記第１の補強部材の縦壁部分に密着する第２の縦壁部分と、を有しており、A second vertical wall portion closely contacting the vertical wall portion of the first reinforcing member,
前記箱体、前記本体部分、前記第１の補強部材、および第２の補強部材は、前記締結手段を用いて一体に締結されていることを特徴とする請求項１に記載した鉄道車両の制御装置用箱体。2. The railway vehicle control according to claim 1, wherein the box body, the main body portion, the first reinforcing member, and the second reinforcing member are integrally fastened using the fastening means. Equipment box.

前記締結手段は、等しいピッチで前後左右に対称に配設されていることを特徴とする請求項１または２に記載した鉄道車両の制御装置用箱体。The box for a railway vehicle control device according to claim 1 or 2 , wherein the fastening means are arranged symmetrically in the front-rear and left-right directions at an equal pitch.