20041230? (1) 玖、發明說明 【發明所屬之技術領域】 本發明，是有關將設置於鐵路車輛的左右的 電動馬達開閉驅動用的門開閉裝置。 【先前技術】 以往，開閉鐵路車輛的門的裝置，一般其驅 用空氣壓等的流體壓，但是近年來，從驅動音的 制反應性、維修性提高的觀點，將電動馬達驅動 驅動裝置的開發是被進行。 其一例，將左右的門本體藉由朝相互逆方向 閉側拉門式的門驅動的裝置顯示於第8圖。圖示 置102，是設置於左右的門本體100A、100B的 利用了捲掛傳動機。 具體上’具備：朝門開閉方向相互分離設置 輪1 0 4及從動帶輪1 0 6、及橫跨於這些之間的皮 皮帶108的下側部分是透過連結構件110A與接 輪1 〇 4的側（圖的右側）的門本體1 〇 〇 a連結的 帶1 0 8的上側部分是透過連結構件1 1 〇 B接近與 1 06的側（圖的左側）的門本體1 00B連結。 在驅動源中使用附減速機馬達1 2 0，在其輸 有前述原動帶輪104。附減速機馬達120，是具 體122及減速機124，減速機124的輸入軸及輸 置成相互平行的狀態（朝向圖的深度方向的狀態 門本體由 動源是使 降低或控 源作爲門 滑行地開 的驅動裝 上方，並 的原動帶 帯 108， 近原動帶 同時，皮 從動帶輪 出軸連結 備馬達本 出軸是配 )，在其 -4- (2) (2)20041230] 輸入軸的前端連結有前述馬達本體122的同時，在輸出軸 的前端連結有前述原動帶輪104 ° 前述連結構件1 1 0 A，是具有：固定於前述皮帶1 0 8 的下側部分從該皮帶1 〇 8朝下方延伸的皮帯側連結部1 1 2 、及從此皮帯側連結部U 2的下端在原動帶輪1 04側（圖 的右側）朝水平方向延伸的中間連結部1 1 3、及從此中間 連結部1 1 3朝下方延伸固定於右側門本體1 00A的上端的 門側的連結部1 1 4。同樣地，連結構件U 0 B，是具有：固 定於前述皮帶1 0 8的上側部分從該上側部分延伸至皮帯 1 0 8的下側部分的下方爲止的皮帯側連結部1 1 6、及從此 皮帯側連結部1 1 6的下端在原動帶輪1 04側（圖的右側） 朝水平方向延伸的中間連結部1 1 7、及從此中間連結部 1 1 3朝下方延伸固定於左側門本體1 0 0 Β的上端的門側連 結部1 1 8。 在此裝置，如圖示從兩門本體1 00Α、1 00Β關閉的閉 門狀態藉由附減速機馬達1 2 0的動作使原動帶輪丨〇 4朝圖 的逆時針方向旋轉驅動的話，皮帶1 0 8的下側部分及與其 連結的右側門本體1 00Α是朝右側滑行的同時，皮帶1 08 的上側部分及與其連結的左側門本體1 〇 〇 Β是朝左側滑行 。即，使門打開。相反地，從此開門狀態藉由前述原動帶 輪1 〇4朝圖的順時針方向旋轉驅動事，兩門本體1 〇〇a、 100B會朝關閉方向滑行驅動。 【發明內容】 -5- (3) (3)20041230; (本發明所欲解決的課題） 前述附減速機馬達1 2 0，因爲保有大的減速機1 2 4， 進一步，從此減速機124與原動帶輪104 —起使馬達本體 1 2 2朝前側大大地突出的構造，所以在此附減速機馬達 1 20的配設供需要大的空間之外，爲了避免與該附減速機 馬達120連結的構件（特別是與接近附減速機馬達120的 右側門本體100A連接的連結構件110A)的干渉而使設計 受到明顕限制，一般裝置整體有大型化的問題。 例如，爲了裝置整體的小型化一邊將與原動帶輪1 04 及從動帶輪1 06的距離僅可能縮小，一邊爲了將兩門本體 100A、100B的滑行行程大大地確保，如圖示將各連結構 件1 1 0 A、11 0B朝門開閉方向長延伸使各門側連結部1 1 4 、1 1 8可移動至分別附減速機馬達1 20及從動帶輪1 〇6的 外側的位置爲止較佳，爲了在其移動時前述連結構件 1 1 0 A的門側連結部1 1 4或中間連結部1 1 3是不會與大的 附減速機馬達1 2 0干渉，而如圖示使門側連結部1 1 4通過 附減速機馬達1 2 0的下側地將該門側連結部1 1 4及附減速 機馬達1 2 0的位置呈上下錯開配置，會有增大其部分的裝 置整體的高度尺寸的問題。 且，不增大裝置高度尺寸地回避前述干渉的手段，是 將前述連結構件1 1 0 A的例如中間連結部1 1 3及門側連結 部1 14朝前側（圖中前方側）膨脹，兩連結部1 1 3、1 1 4 是使通過前述附減速機馬達1 2 0的前側地配置連結構件 1 1 〇 A，但是如前述附減速機馬達1 2 〇是因爲具有從其減 -6 - (4) (4)20041230? 速機124進一步使馬達本體122朝前側大大地突出的外形 ’所以爲了回避此馬達本體i 22及前述連結構件n 〇 a的 干渉而必需將前述連結部1 1 3、丨丨4相當增大地朝前側膨 脹，有其部分會使裝置的深度尺寸（前後方向的尺寸）變 大的問題。特別是鐵路車輛用門開閉裝置的情況，因爲多 在其則後（車輛內外）配置蓋或點檢用蓋，所以深度尺寸 大的話’會有在前述蓋或點檢用蓋的內側無法收納裝置整 體的問題。 本發明，是鑑於這種狀況，對於鐵路車輛用門的開閉 裝置’其目的爲一邊將門本體的滑行行程朝充分確保一邊 達成裝置整體的小型化。 (用以解決課題的手段） 作爲供解決則述課遍用的手段，本發明，是—^種鐵路 車輛用門的開閉裝置，以電動馬達作爲驅動源將設置於車 輛的左右的門本體朝開閉方向滑行驅動的鐵路車輛用門的 開閉裝置，具備：設置於前述電動馬達的輸入側的原動車 、及在從此原動車朝與前述門本體的開閉方向平行的方向 遠離位置可與前述原動車的旋轉軸平行的軸周圍旋轉地設 置的從動車、及橫跨原動車及從動車之間的捲掛傳動構件 、及連結此捲掛傳動構件及前述門本體之中接近原動車側 的門本體的第1門本體用的第1連結構件、及對於前述捲 掛傳動構件連結朝前述第1連結構件的部位逆方向移動的 部位及遠離前述原動車的側的門本體的第2門本體連結用 (5) (5)20041230; 的第2連結構件的同時，前述電動馬達是由外轉子型的直 接驅動馬達構成，在此直接驅動馬達的外轉子設有前述原 動車’且，使該直接驅動馬達的軸方向前側的空間通過前 述第1連結構件地配置該第1連結構件。 然而，在此所謂「外轉子型的直接驅動馬達」，是具 有配設於固定子的徑方向的外側的轉子（外轉子），且， 此外轉子的旋轉驅動力是不通過減速機地直接往外部輸出 的馬達的意思。 這種外轉子型的直接驅動馬達，其不具有減速機的部 分，即可減少配設空間，且，爲了在固定子的徑方向外側 配置轉子而也將軸方向的尺寸縮的很小。因此，藉由在其 外轉子設置原動車，即使將第1連結構件朝前側大大地膨 脹，也可回避該第1連結構件及前述外轉子型直接驅動馬 達的干渉並使該直接驅動馬達的腳方向前側的空間通過第 1連結構件地配置，由此，可一邊將第1連結構件的移動 行程即門開閉行程充分且較大地確保，一邊可以將裝置的 高度尺寸及深度尺寸（與馬達軸方向平行的方向的尺寸） 的雙方抑制較小。 在此，因爲前述直接驅動馬達的外轉子是設置於固定 子的周圍，所以一般外徑較大，雖非必定要與原動車的外 徑一致，但是有這種徑的差異的情況中，藉由具有：配置 於固定子的周圍的轉子本體部 '及由從此轉子本體部的旋 轉中心部朝前方突出的比前述轉子部小徑的原動車構成的 旋轉輸出部，而無關前述轉子本體部的徑’就可將具有適 -8- (6) (6)20041230] 切的外徑的原動車設置於外轉子。而且，藉由在前述轉子 本體部的前側且通過前述旋轉輸出部的上側或是下側地配 置，而也無關前述旋轉輸出部是從轉子本體部朝軸方向前 側突出，即使第1連結構件朝前側大大地膨脹，也不會干 渉前述外轉子地通過該外轉子的前側。 如此，在本發明中，爲了使第1連結構件及直接驅動 馬達的干渉回避所受到設計的限制的程度會減少，第1連 結構件的形狀設定的自由度可提高。因此，例如，前述第 1連結構件及第2連結構件，是包含沿著前述捲掛傳動構 件延伸的驅動側連結部，此驅動側連結部的門打開方向後 側的端部是可固定於前述捲掛傳動構件的途中部分，藉由 這種結構，可將裝置高度尺寸抑制較小並可充分確保門本 體的滑行行程。 進一步，前述第1連結構件，是含有：前述驅動側連 結部、及連結此驅動側連結部的門打開方向前側的端部及 前述第1門本體的門側連結部的同時，無關第1門本體的 開閉位置使前述門側連結部是隨時位置於前述直接驅動馬 達的靠門開閉方向的外側，且，前述驅動側連結部是位置 於前述直接驅動馬達的軸方向前側地配置也可能。 在此配置中，因爲前述門側連結部是隨時在直接驅動 馬達的外側中不會通過該直接驅動馬達的前側，所以爲了 避免此直接驅動馬達及門側連結部的干渉而不需使該門側 連結部朝前側膨脹，而進一步可削減其部分的裝置的深度 尺寸。 -9 - 20041230] 然而，在此結構中，雖有需要將驅動側連結部配置於 直接驅動馬達的前側，但是此驅動側連結部是具有沿著捲 掛傳動構件延伸的形狀即可’與連結該驅動側連結部及門 本體的門側連結部相比因爲需要高度尺寸小，所以即使將 該驅動側連結部配置於直接驅動馬達的前側，也不會影響 裝置整體的大小。 進一步，與前述第1連結構件同樣，藉由前述第2連 結構件，是包含：前述驅動側連結部、及連結此驅動側連 結部的門打開方向前側的端部及前述第2門本體的門側連 結部的同時，無關第2門本體的開閉位置使前述門側連結 部隨時位置於前述從動車的靠門開閉方向的外側地配置， 而不需要考慮回避該第2連結構件及從動車的干渉，就可 一邊確保第2門本體的充分的滑行行程一邊讓裝置整體更 小型化。 且在本發明中，控制前述直接驅動馬達的驅動的控制 器是配置於前述原動車及從動車之間也可能。如此，藉由 將原動車及從動車之間的空間有效活用，就可將也包含前 述控制器的開閉裝置整體整理成輕小。 【實施方式】 將本發明的第1實施例依據第1圖〜第5圖來說明。 第1圖〜第4圖，是顯示此實施例的鐵路車輛用門及 其開閉裝置，其中第1圖，是從車室內所見，右側的門本 體1 0A及左側的門本體1 0B是全閉的狀態。這些的門本 (8) (8)20041230" 體1 0 A、1 0 B，是可將形成於左右的車輛側托架F L之間 的乘降口開閉地朝左右方向滑行地配置。 在前述各門本體l〇A、10B的上端，固定有朝上方突 出複數的支架12。在各支架12，安裝有可朝前後方向（ 第1圖中深度方向）的軸周圍旋轉的門輪1 4。一方面， 在鐵路車輛的側壁側，朝門本體的開閉方向延伸的導引軌 道16是成固定於各門本體10A、10B的上方的位置，前 述各門輪1 4是轉動可能地載置在此導引軌道1 6上。藉由 此結構，兩門本體1 〇A、1 0B是在車輛側可開閉地被吊下 支撐。 前述導引軌道1 6，是透過基板1 8被支撐於車輛側。 此基板18，其下半部18b是具有左右方向比上半部18a 長地延伸的形狀，該基板1 8整體是被固定於車輛側壁的 同時，沿著基板1 8的下半部1 8b固定有前述導引軌道1 6 。而且，在此基板 18的上半部，是組裝有將門本體 10A 、1 0B朝開閉方向滑行驅動用的開閉裝置20。 此開閉裝置20，是具備：作爲驅動源的電動馬達22 、及原動帶輪23、及從動帶輪24、及皮帶26、及第1連 結構件27及第2連結構件28。 前述電動馬達22，是由後述的外轉子型的直接驅動 馬達構成，其旋轉軸是在朝向前後方向（第1圖的深度方 向）的狀態下被固定於前述基板1 8的右端部前面（第1 圖中前方側面）。 原動帶輪2 3，因爲相當於本發明的原動車，所以設 -11 - (9) (9)20041230? 置於前述電動馬達22的外轉子，與其外轉子一體地朝前 後方向的軸周圍旋轉驅動（詳細後述）。因此，在圖例中 ，右側門本體1 〇 A是相當於本發明的第1門本體（接近 原動車側的門本體），左側門本體1 0B是相當成本發明第 2門本體（遠離原動車側的門本體）。 從動帶輪24，因爲相當於本發明的從動車，所以也 具有與前述原動帶輪2 3同等的外徑，設置於從該原動帶 輪23朝與門開閉方向平行的方向（第1圖中左右方向） 遠離的位置，在其位置朝與前述原動帶輪2 3的旋轉軸平 行的軸（前後方向的軸）周圍旋轉可能地安裝於基板18 的上半部1 8 a。 皮帶2 6，因爲相當於本發明的捲掛傳動部，所以橫 跨被成兩帶輪2 3、2 4之間，與這些的帶輪2 3、2 4 —起構 成捲掛傳動機構。 然而，本發明所使用的捲掛傳動機構是不限定於圖示 的皮帯傳動機構，使用例如使用鏈條及鏈輪的鏈條傳動機 構也可以。 第1連結構件27，是用來連結前述皮帶26的下側部 分及右側門本體10 A的外側（第1圖中右側）的支架12 。詳細的說，具有：沿著前述皮帶2 6的下側部分延伸的 驅動側連結部27a、及從此驅動側連結部27a的右端部（ 門打開方向前側的端部）朝下方延伸的門側連結部2 7b， 前述驅動側連結部27a的左端部（門打開方向後側的端部 )是透過連結配件2 9與皮帯2 6的下側部分的靠近從動帶 -12- (10) (10)20041230: 輪24的部位連結的同時，門側連結部27b的下端部是與 前述支架1 2直結。而且，如圖示右側門本體1 〇 A即使於 全閉位置的狀態，也可使門側連結部2 7 b是位置於電動馬 達22的靠門開閉方向外側（圖中右側），換言之，驅動 側連結部27a是隨時位置在電動馬達22的軸方向前側的 空間地，使該驅動側連結部2 7a的長度尺寸是充分大地被 設定。 對於此第2連結構件28，是連結朝與前述皮帶26的 上側部分即該皮帶2 6的下側部分的逆方向移動部分、及 左側門本體10 B的外側（第1圖中左側）的支架12。詳 細的說，具有：沿著前述皮帶26的上側部分延伸的驅動 側連結部2 8 a、及從此驅動側連結部2 8 a的左端部（門打 開方向前側的端部）朝下方延伸的門側連結部28b，前述 驅動側連結部28a的右端部（門打開方向後側的端部）是 透過連結配件29與皮帯26的上側部分的靠近原動帶輪 23的部位連結的同時，門側連結部28b的下端部是與前 述支架1 2直結。而且，如圖示左側門本體1 〇B即使是位 置於全閉的狀態，也可使門側連結部2 8 b是位置於從動帶 輪24的靠門開閉方向外側（圖中左側），換言之，驅動 側連結部2 8 a隨時位置在從動帶輪2 4的軸方向前側的空 間地，使該驅動側連結部2 8 a的長度尺寸是充分大地被設 疋。 如第3圖所示，前述各連結配件2 9，具有：具有皮 帶2 6嵌入可能的溝且固定於驅動側連結部2 7 a、2 8 a的內 -13- (11) (11)20041230] 側面（例如驅動側連結部27a中下側面）的本體配件29a 、及與此本體配件29a結合並與該本體配件29a —起將皮 帯26從上下挾入的蓋板29b。然而，第3圖是第1圖的 B - B線剖面圖，方便上，對於連結配件2 9是將其剖面由 實線顯示。 接著，將前述電動馬達22的構造依據第5圖（a )( b )說明。如圖示的，此電動馬達22，是具備··固定子3 0 、及設置於其周圍的外轉子40。 固定子3 0，是具備：支撐構件3 2、及複數本的鐵心 33 〇 支撐構件32，是具有略圓板狀的本體部，在此本體 部的周緣的複數處（圖例中4個所），設有具有螺孔32a 的轂部。在各螺孔32a中，插通設置於基板1 8的螺絲插 通孔（圖示省略）的螺絲是被螺入，藉由其螺絲使支撐構 件3 2是被固定於前述基板1 8的前面（第4圖參照）。 從支撐構件3 2的本體的中央部朝前方突出圓形狀的 鐵心固定部32b，從此鐵心固定部32b的中央進一步朝前 方，突出比該鐵心固定部3 2 b小徑的轉子支軸部3 2 c。而 且，在前述鐵心固定部32b的周圍使複數本的鐵心33呈 放射狀配設，在各鐵心3 3的周圍捲取有線圈3 4。構成各 線圈34的導線36，是透過設置於前述支撐構件32的周 緣部的密封環3 5與圖略的馬達驅動電路連接。然而，第 5圖（b)的37是霍爾（Hall) 1C，38是脈衝合成電路。 外轉子40，是具有：轉子本體部42、及旋轉輸出部 -14- (12) (12)20041230] 44，兩者是一體連結。 轉子本體部4 2，是具備旋轉板4 5及永久磁鐵4 6。旋 轉板45，是具有：在中央具有貫通孔的前壁45a、及從此 前壁4 5 a的外周部朝後方（第5圖中右方）延伸的周_ 45b，在周壁45b的內周面固定有前述永久磁鐵46。而且 ’此永久磁鐵46是與前述各鐵心3 3的徑方向外側隔有微 小間隙地配置有轉子本體部4 2。 旋轉輸出部44是形成略圓筒狀，之後在端具有大徑 的鍔部44a。而且，此旋轉輸出部44是對於前述旋轉板 前壁45a從後方插通，在從該前壁45a的中央朝軸方向前 側（第5圖（b )中左側）突出的狀態下，前述鍔部44a 是與前述旋轉板前壁4 5 a的貫通孔周緣部重疊，其重疊部 分是藉由小螺釘4 7結合。藉由此結合，轉子本體部4 2旋 轉的輸出部44是被一體化。 旋轉輸出部44，是具有比前述轉子支軸部32c的外 徑大的內徑，軸承5 0、5 2是位在此旋轉輸出部4 4的內周 面及前述轉子支軸部32c的外周面之間。透過這些的軸承 50、52 ’外轉子40整體是在支撐構件32側可旋轉地被支 撐。而且，在前述旋轉輸出部44的前端部藉由安裝有皮 帯防止脫落用的扣環4 8，使該旋轉輸出部4 4就這樣地構 成前述原動帶輪23。 然而，需要將前述轉子本體部42的外徑與原動車23 的徑一致的情況中，省略前述旋轉輸出部44將外轉子整 體就這樣地作爲原動車使用也可以。 -15- (13) (13)20041230? 對於此電動馬達2 2，前述第1連結構件2 7的驅動側 連結部27a，其本體部分是如第4圖所示，使轉子本體部 42的前側是通過旋轉輸出部44的下側的空間地配置。 如第1圖所示，在前述原動帶輪23及從動帶輪24之 間的位置，是設有控制前述電動馬達22的驅動的控制器 5 4。此控制器5 4，是如第3圖所示，被固定於前述基板 1 8的前面，具有可回避前述各連結構件27、28的驅動側 連結部27a、28a及皮帯26的干渉的形狀。 且，在基板1 8的前面中央中設有鎖定裝置5 3。 此鎖定裝置5 3，是設置在各門本體1 0 A、1 0B的內側 支架12彼此之間的位置，可以回避兩連結構件27、28、 皮帶26及各支架12的干渉的位置。該鎖定裝置53，是 具備藉由前述控制裝置54控制的電磁閥等的電力驅動源 ，利用其驅動力，將前述門本體l〇A、10B之中的任一方 (圖例中右側門本體1 〇 A )切換成固定於全閉位置的狀態 及解放狀態。 包含前述基板1 8，開閉裝置20整體是藉由車外側蓋 5 5及車內側蓋5 6從前後覆蓋。在車內側蓋5 6的內側面 中固定有顯示裝置58，其顯示內容是透過設置於前述車 內側蓋56的窗56a顯示於車內側。且，車內側蓋56本身 ’是朝通過其上端的水平軸周圍轉動操作（開閉操作）， 成爲作爲檢點蓋的功能。 接著，說明此裝置的作用。 在如第5圖所示的電動馬達22，捲取於各鐵心3 3的 •16- (14) (14)20041230: 線圈34被通電的話，由其電磁力使外轉子40旋轉，設置 於此外轉子4 0的原動帶輪2 3也旋轉。 在此，從如前述第1圖的全開狀態使原動帶輪23朝 同圖逆時針方向旋轉的話，橫跨於此原動帶輪2 3及從動 帶輪24之間的皮帯26的下側部分是朝同圖右方向移動， 與此皮帯2 6的下側部分連結的第1連結構件2 7及右側門 本體l〇A也一體地朝往右方向移動。與此同時，與前述 皮帶26的上側部分及同部分連結的第2連結構件28及左 側門本體10B是朝左方向移動。即，兩門本體l〇A、10B 是朝相互逆方向滑行開門。相反地，藉由從開門狀態使原 動帶輪23朝第1圖的順時針方向旋轉驅動，使兩門本體 10A、10B朝關閉方向同時驅動。 在此裝置中，電動馬達22因爲是設有外轉子型的直 接驅動馬達，所以該馬達2 2不具有減速機的部分，其配 設空間（特別是從正面所見空間）可減少，且，在固定子 3 0的徑方向外側因爲配置外轉子4 0所以在軸方向的尺寸 也很小。因此，藉由在其外轉子4 0設置原動車2 3，即使 將第1連結構件27朝前側（第4圖中左側）大大地膨脹 ，也可使回避該第1連結構件27及前述電動馬達22的干 渉並第1連結構件27可通過該馬達22的軸方向前側的空 間地配置，由此，可一邊將第1連結構件2 7的移動行程 即門開閉行程充分大地確保，一邊將裝置的高度尺寸及深 度尺寸（第2圖〜第4圖的左右方向的尺寸）的雙方抑制 較小0 -17- (15) (15)20041230] 更具體的話，在此實施例中，外轉子4〇的整體徑雖 疋較原動m fe 2 3的徑大很多，但是前述外轉子4 〇，是藉 由從配置於固定子的周圍的轉子本體部4 2使構成原動帶 輪2 3的旋轉輸出部4 4朝軸方向前側突出，而可將具有適 切的徑的原動帶輪23外轉子40 —體化。且，藉由使其轉 子本體邰4 2的前側且前述旋轉輸出部4 4的下側（第1連 結構件2 7是與皮帯2 6的上側部分連結的情況中旋轉輸出 部4 4的上側也可以）通過前述第1連結構件2 7地配置該 第1連結構件2 7，就可無關前述旋轉輸出部4 4是從轉子 本體部42朝軸方向前側突出，將第1連結構件27不會朝 前側大大地膨脹且不會與前述外轉子4 0的干渉地通過該 外轉子4 0的前側。 且，對於各連結構件2 7、2 8，是將兩連結構件2 7、 2 8，形成具有：沿著捲掛傳動構件皮帯2 6延伸的驅動側 連結部27a、28a、及設置於其門打開方向前端側部分的 門側連結部27b、28b的形狀，驅動側連結部27a、28a的 門打開方向後側的端部因爲是固定於前述皮帶2 6的途中 部分，所以與如第8圖所示的爲了避免連結構件1 1 〇 A的 中間連結部1 1 3及附減速機馬達1 20的干渉而將兩者位置 朝上下方向錯開配置的習知裝置相比，可將裝置高度尺寸 抑制較小並可將門本體的滑行行程充分確保。 進一步，在此實施例中，第1連結構件27的門側連 結部27b是隨時位置在電動馬達22的靠門開閉方向的外 側（第1圖中右側），門側連結部27b因爲不會通過電動 -18- (16) (16)20041230: 馬達22的前側，所以不需要爲了避免兩者的干渉而將門 側連結部27b朝前側膨脹’進一步可削減其部分的裝置的 深度尺寸。 例如，第2實施例是如第6圖及第7圖所示，與在門 關閉的狀態下第1連結構件27的門側連結部27b是位置 於電動馬達22的靠門開閉方向內側（第6圖中左側）的 裝置相比的話，在該裝置中，爲了避免前述門側連結部 2 7b及電動馬達22的干渉而需要如第7圖所示將該門側 連結部27b的上半部朝外側（第7圖中右側）膨脹，其部 分容易與其他的零件等產生干渉，但是如第1實施例，門 側連結部27b是無關門本體1 0A的位置可隨時位置於電 動馬達22的外側的話，不需要讓前述門側連結部27b膨 脹（第4圖參照），可削減其部分的裝置的深度尺寸。 然而，藉由第1實施例的如的配置，第1連結構件 27的驅動側連結部27a是隨時位置於電動馬達22的腳方 向則側’但是此驅動側連結部2 7 a是具有沿著皮帯2 6延 伸的形狀即可，與前述門側連結部27b相比，所需要的高 度尺寸因爲小，所以即使將該驅動側連結部27a配置於直 接驅動馬達的前側，也不影響裝置整體的大小。 且’在第1實施例中，即使對於第2連結構件28， 其門側連結部28b也無關門本體1 0B的位置因爲是隨時位 置於從動帶輪24的外側（第1圖中左側），所以與如前 述第2實施例，第2連結構件28的門側連結部28b是位 置於從動帶輪24的內側（第6圖中右側）相異，不需要 -19- (17) (17)20041230] 爲了回避該從動帶輪24或第1連結構件27的干渉而將門 側連結部28b朝前側膨脹（比較參照第2圖的門側連結部 2 8b及第7圖的門側連結部28b )，對於此點也可以增進 裝置深度尺寸的削減。 且，在第1實施例中，因爲將供控制電動馬達22的 驅動用的控制器54配置於兩帶輪23、24間，所以可將該 帶輪23、24間的空間有效活用並將控制器54輕小地組入 開閉裝置內。特別是如第3圖所示的例中，因爲形成可將 控制器5 4配置於兩連結構件2 7、2 8及皮帯2 6的正後方 的位置而可回避這些連結構件27、28及皮帯26的干渉的 形狀，所以可將裝置高度尺寸及深度尺寸的雙方抑制較小 地將控制器54組入裝置內。 (發明之效果） 如以上本發明，因爲對於鐵路車輛用門的開閉裝置， 在橫跨於原動車及從動車之間的捲掛傳動構件分別通過連 結構件將左右的門本體連結的同時，使用作爲前述原動車 的驅動源外轉子型的直接驅動馬達，在門開閉時使該馬達 的軸方向前側通過接近前述原動車的側的連結構件（第1 連結構件）’所以可有效果地一邊將門本體的滑行行程朝 充分確保一邊達成裝置整體的小型化。 【圖式簡單說明] [第1圖]本發明的第1實施例的鐵路車輛用門及其開 -20- (18) (18)20041230? 閉裝置的前視圖。 [第2圖]第1圖的a - A線剖面圖。 [第3圖]第1圖的b - B線剖面圖。 [第4圖]第1圖的c - C線剖面圖。 [第5圖](a )是設置於前述開閉裝置的外轉子型直 接驅動馬達的前視圖，（b )是（a )的d_d線剖面圖。 [第6圖]本發明的第2實施例的鐵路車輛用門及其開 閉裝置的前視圖。 [第7圖]第6圖的E - E線剖面圖。 [第8圖]顯示習知的鐵路車輛用門的開閉裝置的一例 的前視圖。 [主要元件對照表】 1 0右側門本體 1 〇 A右側門本體（第1門本體） 10B左側門本體（第2門本體） 1 2內側支架 14門輪 16導引軌道 18基板 18a上半部 18b下半部 2〇開閉裝置 22電動馬達 -21 - (19) (19)20041230] 23原動帶輪（原動車） 24從動帶輪（從動車） 26皮帶（捲掛傳動構件） 2 7連結構件 2 7 a、2 8 a驅動側連結部 27b、28b門側連結部 2 8連結構件 28b門側連結部 29連結配件 29a本體配件 29b蓋板 3 〇固定子 32支撐構件 3 2 a螺孔 3 2 b鐵心固定部 32c轉子支軸部 3 3鐵心 34線圈 3 5密封環 36導線20041230? (1) 发明. Description of the invention [Technical field to which the invention belongs] The present invention relates to a door opening and closing device for opening and closing electric motors installed on the left and right of a railway vehicle. [Prior Art] Conventionally, a device for opening and closing a door of a railway vehicle generally uses a fluid pressure such as air pressure to drive the vehicle. However, in recent years, an electric motor has been Development is being carried out. As an example, Fig. 8 shows a device in which the left and right door bodies are driven by a closed-door type sliding door in opposite directions. The device 102 shown in the figure is a reeling drive which is installed on the left and right door bodies 100A and 100B. Specifically, it is provided that: the wheels 104 and the driven pulley 106 are separated from each other in the direction of opening and closing the door, and the lower part of the leather belt 108 spanning these is provided through the connecting member 110A and the receiving wheel 1. The upper part of the belt 108 connected to the door body 100a on the side 4 (the right side in the figure) is connected to the door body 100B on the side 106 (the left side in the figure) through the connecting member 1 10B. A reduction gear motor 120 is used as a drive source, and the aforementioned prime mover 104 is inputted thereto. The speed reducer motor 120 is equipped with a specific 122 and a speed reducer 124. The input shafts and inputs of the speed reducer 124 are parallel to each other (the state of the door is toward the depth of the figure. The door is driven by the source to lower or control the source to slide). Ground drive is installed above the driving belt 帯 108, and at the same time near the driving belt, the output shaft of the leather driven pulley is connected to the auxiliary motor (the output shaft is matched), in its -4- (2) (2) 20041230] input The front end of the shaft is connected to the motor body 122, and the front end of the output shaft is connected to the original driving pulley 104 °. The connecting member 1 1 A has a lower portion fixed to the belt 10 8 from the belt. 1 008 The leather-side coupling portion 1 1 2 extending downward and the lower end of the leather-side coupling portion U 2 from the lower end of the leather-side coupling portion U 2 on the driving pulley 1 04 side (right side in the figure) in the horizontal direction 1 1 3 And the door-side connecting portion 1 1 4 extending downward from the intermediate connecting portion 1 1 3 and fixed to the upper end of the right door body 100A. Similarly, the connecting member U 0 B includes a leather-side connecting portion 1 1 6 that is fixed to the upper portion of the belt 108 and extends from the upper portion to a lower portion of the leather portion 108. And the lower end of this coupling part 1 1 6 is located on the driving pulley 1 04 side (the right side in the figure). The intermediate link part 1 1 7 extending horizontally from this side of the driving pulley and the lower part is fixed to the left side. The door-side connection portion 1 1 8 at the upper end of the door body 1 0 0 Β. In this device, as shown in the figure, when the door is closed from the two door bodies 100A and 100B, the driving belt pulley 丨 04 is driven to rotate counterclockwise by the action of the reducer motor 1 2 0, the belt 1 The lower part of 0 8 and the right door body 1 00A connected to it slide to the right, while the upper part of the belt 1 08 and the left door body 1 00B connected to it slide to the left. That is, the door is opened. On the contrary, the door is rotated and driven clockwise in the figure from the original driving pulley 104 from the opened state, and the two door bodies 100a and 100B are slid and driven in the closing direction. [Summary of the invention] -5- (3) (3) 20041230; (Problems to be solved by the present invention) The aforementioned reduction gear motor 1 2 0 is because a large reduction gear 1 2 4 is kept. Further, the reduction gear 124 and The driving pulley 104 is constructed so that the motor body 1 2 2 greatly protrudes toward the front side. Therefore, in order to avoid the connection with the reduction gear motor 120, a large space is required for the installation of the reduction gear motor 120. The design of the components (especially the connecting member 110A connected to the right door body 100A with the speed reducer motor 120 attached) is dry, which limits the design, and the general device has a problem of large size. For example, in order to reduce the overall size of the device, the distance from the driving pulley 104 and the driven pulley 106 may only be reduced. In order to greatly ensure the sliding travel of the two door bodies 100A and 100B, as shown in the figure, The connecting members 1 1 0 A and 11 0B are extended in the door opening and closing direction so that each door-side connecting portion 1 1 4 and 1 1 8 can be moved to positions outside the gear motor 12 and the driven pulley 1 06 respectively. So far, in order to prevent the door-side connection part 1 1 4 or the intermediate connection part 1 1 3 of the aforementioned connection member 1 10 A from moving with the large reduction gear motor 1 2 0 when it moves, as shown in the figure Positioning the door-side connecting portion 1 1 4 with the reducer motor 1 2 0 underneath the door-side connecting portion 1 1 4 and the reducer motor 1 2 0 is shifted up and down. The overall height dimension of the device. In addition, the means to avoid the dryness without increasing the height of the device is to expand the connection member 1 1 A such as the intermediate connection portion 1 1 3 and the door-side connection portion 1 14 toward the front side (the front side in the figure). The connection parts 1 1 3, 1 1 4 are arranged so that the connection member 1 1 〇A is arranged to pass through the front side of the motor with a reduction gear 1 2 0, but because the motor with a reduction gear 1 2 〇 has a reduction of -6- (4) (4) 20041230? The profile of the speed machine 124 which further protrudes the motor body 122 to the front side. Therefore, in order to avoid the drying of the motor body i 22 and the connection member n 0a, the connection portion 1 1 3 is necessary. , 丨 丨 4 swells to the front side considerably, and there is a problem that the depth dimension (size in the front-rear direction) of the device becomes large. In particular, in the case of a door opening / closing device for a railway vehicle, since a cover or an inspection cover is often arranged behind the vehicle (inside and outside the vehicle), if the depth is large, the device cannot be accommodated inside the cover or the inspection cover. The overall problem. In view of this situation, the present invention is directed to a door opening / closing device for a railway vehicle. The object of the present invention is to reduce the overall size of the device while ensuring the sliding stroke of the door body sufficiently. (Means to Solve the Problem) As a means for solving the problem, the present invention is a device for opening and closing a door for a railway vehicle, and uses electric motors as a drive source to open the door bodies on the left and right sides of the vehicle. An opening / closing device for a railway vehicle door that is slidingly driven in an opening / closing direction includes a prime mover provided on an input side of the electric motor, and a position away from the prime mover in a direction parallel to the opening / closing direction of the door body, so as to be away from the prime mover A driven vehicle that is rotatably provided around a parallel axis of rotation, and a rolling transmission member that spans between the original driving vehicle and the driven vehicle, and a door body that connects the rolling transmission member and the door body close to the original vehicle side A first connection member for the first door body of the vehicle, and a second door body connection for the part of the winding transmission member that moves in the direction opposite to the position of the first connection member and the door body away from the door body on the side of the original vehicle (5) (5) 20041230; At the same time as the second connecting member, the electric motor is composed of a direct drive motor of an outer rotor type, and the outer part of the motor is directly driven here. The rotor is provided with the aforementioned original vehicle ', and the first connection member is disposed so that the space on the front side in the axial direction of the direct drive motor passes through the first connection member. However, the "outer rotor type direct drive motor" here has a rotor (outer rotor) that is arranged on the outside of the stator in the radial direction, and the rotational driving force of the rotor is directly transmitted to the rotor without a reduction gear. Meaning of external output motor. This outer rotor type direct drive motor does not have a speed reducer, so it can reduce the installation space. In addition, in order to arrange the rotor outside the radial direction of the stator, the dimension in the axial direction is also reduced. Therefore, by providing a prime mover on its outer rotor, even if the first connection member is greatly expanded toward the front side, the first connection member and the outer rotor type direct drive motor can be prevented from drying up and the feet of the direct drive motor can be avoided. The space on the front side of the direction is arranged by the first connecting member. This allows the height and depth of the device (with respect to the motor shaft direction) to be maintained while the door opening and closing stroke, which is the movement stroke of the first connecting member, is sufficiently and relatively large. The size of the parallel direction) is small. Here, because the outer rotor of the direct drive motor is installed around the stator, the outer diameter is generally large. Although it is not necessarily the same as the outer diameter of the original car, but if there is a difference in the diameter, A rotor output portion including a rotor body portion 'disposed around the stator, and a rotary output portion composed of a prime mover having a smaller diameter than the rotor portion protruding forward from the rotation center portion of the rotor body portion, regardless of the rotor body portion. Diameter ', the original car with an outside diameter suitable for -8- (6) (6) 20041230] cut can be installed on the outer rotor. Furthermore, by arranging on the front side of the rotor body portion and by the upper or lower side of the rotation output portion, it does not matter whether the rotation output portion protrudes from the rotor body portion toward the front side in the axial direction, even if the first connection member faces The front side is greatly expanded, and the front side of the outer rotor does not dry out. As described above, in the present invention, the degree of freedom in setting the shape of the first connecting member can be increased in order to reduce the degree of design limitation of the first connecting member and the direct drive motor. Therefore, for example, the first linking member and the second linking member include a driving-side linking portion that extends along the winding transmission member, and an end of the driving-side linking portion at the rear end in the door opening direction can be fixed to the aforementioned linking member. With this structure, the middle portion of the winding transmission member can suppress the height of the device to be small, and can sufficiently ensure the sliding stroke of the door body. Furthermore, the first connection member includes the drive-side connection portion, an end portion on the front side in a door opening direction connecting the drive-side connection portion, and the door-side connection portion of the first door body, and the first door is irrelevant. The opening / closing position of the main body may be such that the door-side connecting portion is positioned outside the door-opening / closing direction of the direct drive motor at any time, and the drive-side connecting portion may be disposed at the front side in the axial direction of the direct drive motor. In this configuration, because the aforementioned door-side connecting portion does not pass through the front side of the direct drive motor at any time on the outside of the direct drive motor, in order to prevent the direct drive motor and the door-side connecting portion from drying out, it is not necessary to make the door The side connection portion swells toward the front side, and the depth of the device can be further reduced. -9-20041230] However, in this structure, although it is necessary to arrange the driving-side connection portion on the front side of the direct drive motor, the driving-side connection portion may have a shape extending along the winding transmission member. The driving-side connecting portion has a smaller height dimension than the door-side connecting portion of the door body. Therefore, even if the driving-side connecting portion is disposed on the front side of the direct drive motor, the size of the entire device is not affected. Further, similar to the first connection member, the second connection member includes the drive-side connection portion, an end portion on the front side of the door opening direction connecting the drive-side connection portion, and the door of the second door body. At the same time as the side connecting portion, the door side connecting portion is disposed at any time outside the door opening and closing direction of the driven vehicle regardless of the opening and closing position of the second door body, and there is no need to consider avoiding the second connecting member and the driven vehicle. When dry, the entire device can be made more compact while ensuring a sufficient sliding stroke of the second door body. Further, in the present invention, it is possible that the controller that controls the driving of the direct drive motor is disposed between the original and driven vehicles. In this way, by effectively utilizing the space between the original vehicle and the driven vehicle, the entire opening and closing device that also includes the aforementioned controller can be organized into a small size. [Embodiment] A first embodiment of the present invention will be described with reference to Figs. 1 to 5. Figures 1 to 4 show the door for railway vehicles and its opening and closing device of this embodiment. Figure 1 shows the door body 10A on the right and door body 10B on the left as seen from the interior of the vehicle. status. These door books (8) (8) 20041230 " bodies 10A and 10B are arranged so that the landing openings formed between the left and right vehicle side brackets FL can be opened and closed to slide in the left-right direction. A plurality of brackets 12 protruding upward are fixed to the upper ends of the aforementioned door bodies 10A and 10B. Door brackets 14 are attached to each bracket 12 so as to be rotatable around an axis in the front-rear direction (the depth direction in FIG. 1). On the one hand, on the side wall of the railway vehicle, the guide rail 16 extending in the direction of opening and closing of the door body is fixed to the positions above the door bodies 10A and 10B. This guide rail 16 is on. With this structure, the two door bodies 10A and 10B can be suspended and supported on the vehicle side to be opened and closed. The guide rail 16 is supported on the vehicle side through the substrate 18. This substrate 18 has a shape in which the lower half 18b extends longer in the left-right direction than the upper half 18a. The substrate 18 as a whole is fixed to the side wall of the vehicle and is fixed along the lower half 18b of the substrate 18. There are the aforementioned guide rails 16. An opening / closing device 20 for slidingly driving the door bodies 10A and 10B in the opening / closing direction is incorporated in the upper half of the substrate 18. The opening / closing device 20 includes an electric motor 22 as a driving source, a driving pulley 23, a driven pulley 24, a belt 26, and a first connecting member 27 and a second connecting member 28. The electric motor 22 is a direct drive motor of an outer rotor type described later, and its rotation shaft is fixed to the front of the right end portion of the substrate 18 in the front-rear direction (depth direction in FIG. 1) (the first 1 front side in the figure). The prime mover 23 is equivalent to the prime mover of the present invention, so it is set to -11-(9) (9) 20041230? The outer rotor placed on the electric motor 22 rotates integrally with its outer rotor around the front-rear axis. Drive (detailed later). Therefore, in the illustration, the right door body 10A is equivalent to the first door body of the present invention (the door body near the original vehicle side), and the left door body 10B is the second door body equivalent to the invention (away from the original vehicle side). Door body). The driven pulley 24 is equivalent to the driven vehicle of the present invention, and therefore has the same outer diameter as the original driven pulley 23, and is provided in a direction parallel to the door opening and closing direction from the driven pulley 23 (FIG. 1) (Middle, left and right directions), and may be mounted on the upper half 1 8 a of the base plate 18 at a position away from the axis (axis in the front-rear direction) parallel to the rotation axis of the original driving pulley 23. Since the belt 26 corresponds to the winding drive unit of the present invention, the cross section is formed between two pulleys 2 3, 2 4 and these pulleys 2 3, 2 4 constitute a winding drive mechanism. However, the winding drive mechanism used in the present invention is not limited to the leather drive mechanism shown in the figure, and a chain drive mechanism using, for example, a chain and a sprocket may be used. The first connecting member 27 is a bracket 12 for connecting the lower part of the belt 26 and the outside (right side in the first figure) of the right door body 10A. In detail, the drive-side connection portion 27a extends along the lower portion of the belt 26, and the door-side connection extends downward from the right end portion (the end portion on the front side in the door opening direction) of the drive-side connection portion 27a. Part 2 7b, the left end of the drive side connection part 27a (the end on the rear side in the door opening direction) is close to the driven belt -12- (10) ( 10) 20041230: While the parts of the wheel 24 are connected, the lower end portion of the door-side connecting portion 27b is directly connected to the aforementioned bracket 12. In addition, as shown in the figure, the door body 10A on the right side can be positioned outside the door opening and closing direction of the electric motor 22 (right side in the figure) even if it is in the fully closed position. In other words, the drive The side connection portion 27a is a space located on the front side in the axial direction of the electric motor 22 at any time, and the length dimension of the drive side connection portion 27a is sufficiently set. The second connecting member 28 is a bracket that connects the moving portion in the reverse direction with the upper portion of the belt 26, that is, the lower portion of the belt 26, and the outside (left side in the first figure) of the left door body 10B. 12. In detail, the drive-side connection portion 2 8 a extending along the upper side portion of the belt 26 and a door extending downward from the left end portion (the end portion on the front side in the door opening direction) of the drive-side connection portion 2 8 a are provided. The side connecting portion 28b, the right end portion of the driving side connecting portion 28a (the end on the rear side in the door opening direction) is connected to a portion of the upper portion of the leather belt 26 near the driving pulley 23 through the connecting fitting 29, and the door side The lower end portion of the connecting portion 28b is directly connected to the bracket 12 described above. Moreover, as shown in the figure, even if the left door body 10B is positioned in the fully closed state, the door-side connecting portion 2 8b can be positioned outside the door in the direction of opening and closing of the driven pulley 24 (left in the figure). In other words, the driving-side connecting portion 2 8 a is located at a space on the front side in the axial direction of the driven pulley 24 at any time, so that the length of the driving-side connecting portion 2 8 a is sufficiently set. As shown in FIG. 3, each of the aforementioned connection fittings 29 has a groove with a belt 26 that can be fitted therein and is fixed to the drive-side connection portions 2 7 a and 2 8 a. 13- (11) (11) 20041230 ] A main body fitting 29a on the side (for example, the lower side in the drive-side connection portion 27a), and a cover plate 29b which is combined with the main body fitting 29a and which pushes the leather case 26 up and down. However, FIG. 3 is a cross-sectional view taken along the line B-B in FIG. 1. For convenience, the cross-section of the connection fitting 29 is shown by a solid line. Next, the structure of the electric motor 22 will be described with reference to Figs. 5 (a) (b). As shown in the figure, the electric motor 22 includes a stator 30 and an outer rotor 40 provided around the stator 30. The anchor 30 includes: a supporting member 32; and a plurality of iron cores 33. The supporting member 32 is a body portion having a substantially circular plate shape, and there are a plurality of locations around the periphery of the body portion (four locations in the illustration), A hub portion having a screw hole 32a is provided. In each screw hole 32a, a screw inserted into a screw insertion hole (not shown) provided in the substrate 18 is screwed in, and the support member 32 is fixed to the front of the substrate 18 by the screw. (Refer to Figure 4). A circular iron core fixing portion 32b protrudes forward from the central portion of the main body of the support member 32, and further from the center of the iron core fixing portion 32b, the rotor supporting shaft portion 3 2 having a smaller diameter than the iron core fixing portion 3 2b protrudes forward. c. Further, a plurality of cores 33 are arranged radially around the core fixing portion 32b, and a coil 34 is wound around each core 3 3. The lead wire 36 constituting each of the coils 34 is connected to a motor driving circuit (not shown) through a seal ring 35 provided on a peripheral portion of the support member 32. However, 37 in Fig. 5 (b) is Hall 1C, and 38 is a pulse synthesizing circuit. The outer rotor 40 includes a rotor main body portion 42 and a rotation output portion -14- (12) (12) 20041230] 44, and the two are integrally connected. The rotor body portion 42 includes a rotating plate 45 and a permanent magnet 46. The rotating plate 45 has a front wall 45a having a through hole in the center, and a periphery _ 45b extending rearward (rightward in FIG. 5) from the outer peripheral portion of the front wall 4a, and on the inner peripheral surface of the peripheral wall 45b. The aforementioned permanent magnet 46 is fixed. In addition, the permanent magnet 46 is provided with a rotor main body portion 42 at a slight gap from the outer side in the radial direction of each of the cores 33. The rotary output portion 44 is formed into a cylindrical portion 44a having a large diameter at the end. In addition, the rotation output portion 44 is inserted through the front wall 45a of the rotating plate from the rear and projects from the center of the front wall 45a toward the front side in the axial direction (the left side in FIG. 5 (b)). 44a is overlapped with the peripheral edge portion of the through hole of the front wall 45a of the rotating plate, and the overlapping portion is joined by a small screw 47. As a result of this combination, the output portion 44 that rotates the rotor body portion 42 is integrated. The rotation output portion 44 has an inner diameter larger than the outer diameter of the rotor supporting shaft portion 32c. The bearings 50 and 52 are the inner peripheral surface of the rotating output portion 44 and the outer periphery of the rotor supporting shaft portion 32c. Between faces. The bearings 50 and 52 'that pass through these outer rotors 40 are rotatably supported on the support member 32 as a whole. The front end of the rotary output portion 44 is provided with a buckle 48 for preventing the fall of the leather, and the rotary output portion 44 thus constitutes the original driving pulley 23. However, when it is necessary to make the outer diameter of the rotor main body portion 42 coincide with the diameter of the original vehicle 23, the rotation output portion 44 may be omitted and the entire outer rotor may be used as the original vehicle as it is. -15- (13) (13) 20041230? For this electric motor 22, the drive side connection portion 27a of the first connection member 27 is as shown in FIG. 4, so that the front side of the rotor body portion 42 is It is arranged in a space below the rotation output unit 44. As shown in Fig. 1, a controller 54 is provided between the driving pulley 23 and the driven pulley 24 to control the driving of the electric motor 22. This controller 54 is fixed to the front surface of the substrate 18 as shown in FIG. 3, and has a shape that can avoid the dry connection portions 27a and 28a of the connection members 27 and 28 and the dryness of the leather 26. . A locking device 53 is provided in the center of the front surface of the substrate 18. This locking device 53 is provided at the positions of the inner brackets 12 of each door body 10A, 10B, and can avoid the dry positions of the two connecting members 27, 28, the belt 26, and each bracket 12. The locking device 53 is provided with an electric drive source such as a solenoid valve controlled by the control device 54 and uses the driving force to drive any one of the door bodies 10A and 10B (the right door body 1 in the illustration). A) Switch to the state of being fixed in the fully closed position and the state of liberation. Including the substrate 18 described above, the entire opening and closing device 20 is covered from the front and rear sides by the vehicle outer cover 5 5 and the vehicle inner cover 5 6. A display device 58 is fixed to the inner side surface of the vehicle inner cover 56. The display content is displayed on the vehicle inner side through a window 56a provided in the vehicle inner cover 56 described above. In addition, the vehicle inner cover 56 itself is rotated (operated to open and close) around a horizontal axis passing through the upper end thereof, and functions as an inspection cover. Next, the function of this device will be described. The electric motor 22 as shown in FIG. 5 is wound around • 16- (14) (14) 20041230 of each core 33. When the coil 34 is energized, the outer rotor 40 is rotated by its electromagnetic force, and is installed outside The motive pulley 23 of the rotor 40 also rotates. Here, when the driving pulley 23 is rotated counterclockwise from the fully open state as shown in FIG. 1 described above, the lower side of the leather belt 26 spanning between the driving pulley 23 and the driven pulley 24 is crossed. Parts are moved in the right direction in the figure, and the first connecting member 27 and the right door body 10A connected to the lower part of the cover 26 are also moved in the right direction integrally. At the same time, the second connecting member 28 and the left door body 10B connected to the upper portion and the same portion of the belt 26 are moved in the left direction. In other words, the two door bodies 10A and 10B slide in opposite directions to open the doors. On the contrary, the door pulleys 10A and 10B are driven simultaneously in the closing direction by rotating the driving pulley 23 clockwise from the first door opening state. In this device, since the electric motor 22 is a direct drive motor provided with an outer rotor type, the motor 22 does not have a speed reducer, and its arrangement space (especially the space seen from the front) can be reduced. Because the outer rotor 40 is arranged on the outer side of the stator 30 in the radial direction, the dimension in the axial direction is also small. Therefore, by providing the prime mover 23 on the outer rotor 40, even if the first connection member 27 is greatly expanded toward the front side (left side in FIG. 4), the first connection member 27 and the electric motor can be avoided. The dry 22 and the first connecting member 27 can be disposed through the space on the front side in the axial direction of the motor 22, thereby ensuring that the movement stroke of the first connecting member 27, that is, the door opening and closing stroke, is sufficiently secured, while Both the height dimension and the depth dimension (dimensions in the left-right direction in FIGS. 2 to 4) are smaller. 0 -17- (15) (15) 20041230] More specifically, in this embodiment, the outer rotor 4〇 Although the overall diameter of is much larger than the diameter of the motive force m fe 2 3, the outer rotor 4 0 is a rotary output portion constituting the motive pulley 23 from the rotor body portion 4 2 arranged around the stator. The 4 and 4 protrude toward the front side in the axial direction, and the outer rotor 40 of the driving pulley 23 having a suitable diameter can be integrated. The front side of the rotor body 邰 4 2 and the lower side of the rotation output section 4 4 (the first connecting member 27 is an upper side of the rotation output section 4 in a case where the first connection member 27 is connected to the upper part of the skin 帯 26. Alternatively, by disposing the first coupling member 27 in the first coupling member 27, it is possible to project the first coupling member 27 from the rotor body portion 42 toward the front side in the axial direction regardless of the rotation output portion 44. The front side is greatly expanded and does not pass through the front side of the outer rotor 40 dryly with the aforementioned outer rotor 40. In addition, for each of the connection members 27, 28, the two connection members 27, 28 are formed to have driving-side connection portions 27a, 28a extending along the winding transmission member cover 26, and provided thereon. The shape of the door-side connecting portions 27b and 28b in the front-end side of the door opening direction, and the ends in the door-opening direction of the driving-side connecting portions 27a and 28a are fixed to the midway portion of the belt 26, so they are similar to the eighth As shown in the figure, in order to avoid the dryness of the intermediate connecting portion 1 1 3 of the connecting member 1 10A and the reducer motor 120, the conventional device is arranged with the positions shifted upward and downward, compared with the conventional device. It has small suppression and can fully ensure the sliding stroke of the door body. Further, in this embodiment, the door-side connecting portion 27b of the first connecting member 27 is positioned outside the door opening and closing direction of the electric motor 22 (right side in the first figure) at any time, and the door-side connecting portion 27b does not pass through. Electric-18- (16) (16) 20041230: The front side of the motor 22, so there is no need to expand the door-side connection portion 27b toward the front side in order to avoid the dryness of the two, further reducing the depth of the device. For example, in the second embodiment, as shown in FIG. 6 and FIG. 7, the door-side connection portion 27 b of the first connection member 27 in a state where the door is closed is positioned inside the door opening and closing direction of the electric motor 22 (the first Compared with the device on the left side of FIG. 6, in this device, in order to prevent the door-side connecting portion 27 b and the electric motor 22 from drying out, the upper half of the door-side connecting portion 27 b needs to be shown in FIG. 7. It expands outward (right side in FIG. 7), and its part is likely to dry out with other parts. However, as in the first embodiment, the door-side connecting portion 27b is independent of the position of the door body 10A and can be positioned at any time on the electric motor 22. On the outside, it is not necessary to expand the door-side connecting portion 27b (see FIG. 4), and the depth of the device can be reduced. However, with the arrangement of the first embodiment, the driving-side connecting portion 27a of the first connecting member 27 is positioned at the foot direction of the electric motor 22 at any time. However, the driving-side connecting portion 27a has The shape of the leather jacket 26 can be extended. The required height dimension is smaller than that of the door-side connecting portion 27b. Therefore, even if the driving-side connecting portion 27a is arranged on the front side of the direct drive motor, it does not affect the entire device. the size of. Moreover, in the first embodiment, even for the second connection member 28, the door-side connection portion 28b is irrelevant to the position of the door body 10B because it is always positioned outside the driven pulley 24 (the left side in the first figure). Therefore, unlike the second embodiment described above, the door-side connecting portion 28b of the second connecting member 28 is located inside the driven pulley 24 (on the right side in FIG. 6), and does not require -19- (17) ( 17) 20041230] In order to avoid the dryness of the driven pulley 24 or the first connection member 27, the door-side connection portion 28b is expanded toward the front side (see the door-side connection portion 2 8b in FIG. 2 and the door-side connection in FIG. 7 for comparison). Section 28b) can also reduce the depth of the device. Further, in the first embodiment, since the controller 54 for controlling the driving of the electric motor 22 is disposed between the two pulleys 23 and 24, the space between the pulleys 23 and 24 can be effectively utilized and the control can be performed. The device 54 is lightly assembled into the opening and closing device. In particular, in the example shown in FIG. 3, since the controller 5 4 can be disposed at a position directly behind the two connection members 27, 28, and the skin 26, these connection members 27, 28, and The dry shape of the skin 26 makes it possible to incorporate the controller 54 into the device while suppressing both the height and depth dimensions of the device. (Effects of the Invention) As in the present invention as described above, the rail vehicle door opening and closing device is used while the rolling transmission members spanning between the original and driven cars are connected to the left and right door bodies through the connecting members, respectively. As the drive source outer rotor type direct drive motor of the original vehicle, the front side of the motor in the axial direction of the motor is passed through the connecting member (the first connecting member) near the original vehicle when the door is opened and closed. The sliding stroke of the main body is sufficiently ensured while miniaturizing the entire device. [Brief description of the drawings] [Figure 1] A front view of a door for a railway vehicle and its opening according to the first embodiment of the present invention. (20) (18) (18) 20041230? [Fig. 2] A sectional view taken on line a-A in Fig. 1. [Fig. 3] A sectional view along line b-B in Fig. 1. [FIG. 4] A sectional view taken along line c-c in FIG. [Fig. 5] (a) is a front view of an outer rotor type direct drive motor provided in the aforementioned opening and closing device, and (b) is a sectional view taken along the line d_d of (a). [Figure 6] A front view of a railway vehicle door and its opening and closing device according to a second embodiment of the present invention. [FIG. 7] A sectional view taken along line E-E in FIG. 6. [Fig. 8] A front view showing an example of a conventional opening / closing device for a door for a railway vehicle. [Comparison table of main components] 1 0 right door body 1 〇A right door body (first door body) 10B left door body (second door body) 1 2 inside bracket 14 door wheel 16 guide rail 18 base plate 18a upper half 18b Lower half 20 Opening and closing device 22 Electric motor-21-(19) (19) 20041230] 23 Driven pulley (driven car) 24 Driven pulley (driven car) 26 Belt (coiled drive member) 2 7 Link Component 2 7 a, 2 8 a Drive-side connection 27b, 28b Door-side connection 2 8 Connection member 28b Door-side connection 29 Connection fitting 29a Body fitting 29b Cover plate 3 〇Fixture 32 Support member 3 2 a screw hole 3 2 b iron core fixing part 32c rotor support shaft part 3 3 iron core 34 coil 3 5 seal ring 36 wire
37 霍爾（Hall ) 1C 3 8脈衝合成電路 4 0 外轉子 42轉子本體部 -22- (20) (20)20041230] 4 4旋轉輸出部 44a鍔部 4 5旋轉板 4 5 a前壁 45b 周壁 4 6永久磁鐵 4 7小螺釘 4 8扣環 50 > 52 軸承 53鎖定裝置 5 4控制器 5 5車外側蓋 5 6車內側蓋 5 6a 窗 5 8顯示裝置 100A右側門本體 100B左側門本體 I 0 2 驅動裝置 104原動帶輪 106從動帶輪 108皮帶 110連結構件 II 0A連結構件 1 10B連結構件 -23- (21) (21)20041230] 1 1 2皮帯側連結部 1 1 3中間連結部 1 1 4門側連結部 1 1 6皮帯側連結部 1 1 7中間連結部 1 1 8門側連結部 120附減速機馬達 122馬達本體 124減速機37 Hall (Hall) 1C 3 8 pulse synthesis circuit 4 0 Outer rotor 42 Rotor body part -22- (20) (20) 20041230] 4 4 Rotary output part 44a 部 4 4 Rotary plate 4 5 a Front wall 45b Peripheral wall 4 6 Permanent magnet 4 7 Small screw 4 8 Buckle 50 > 52 Bearing 53 Locking device 5 4 Controller 5 5 Vehicle outer cover 5 6 Vehicle inner cover 5 6a Window 5 8 Display device 100A Right door body 100B Left door body I 0 2 Drive device 104 Driven pulley 106 Driven pulley 108 Belt 110 linking member II 0A linking member 1 10B linking member -23- (21) (21) 20041230] 1 1 2 leather side link 1 1 3 middle link 1 1 4 Door-side connection 1 1 6 Piston-side connection 1 1 7 Intermediate connection 1 1 8 Door-side connection 120 With reduction gear motor 122 Motor body 124 Reducer
-24--twenty four-