M423663 五、新型說明： 【新型所屬之技術領域】 本創作，是有關於煞車操作裝置，特別是自行車用的 煞車操作裝置。 【先前技術】 在自行車用的煞車操作裝置中，習知是藉由油壓將煞 φ 車裝置操作（例如台灣新型第M342334號公報）。習知的 煞車操作裝置，具備：可裝設於自行車的例如車手把的本 體部、及操作部、及汽缸、及活塞。操作部，是與本體部 可擺動自如地連結。汽缸，是設於本體部的內部。操作部 ，是將活塞可擺動自如地連結。活塞，是一端被連結在操 作桿構件，對應操作部的擺動在汽缸內移動。活塞，具有 :設有第1端及第2端且在汽缸內移動的活塞本體、及連 結構件。活塞本體，其第1端是藉由返回彈簧朝第2端側 φ 被推迫。連結構件，是在一端具有與操作桿構件可擺動自 如地連結的連結部。連結構件，是在另一端具有呈球面狀 突出的突出部。活塞本體，是在第2端具有與突出部卡合 的呈球面狀凹陷的凹陷部。 在這種構成的習知的煞車操作裝置中，將操作部朝接 近車手把的方向擺動操作的話，操作部會透過連結構件將 活塞本體推壓。此時，朝連結構件被推迫的力的方向，因 爲是與活塞的汽缸內的移動方向不同，所以其力成爲分散 地朝活塞本體被推壓。 -3- M423663 【新型內容】 [創作所欲解決的課題] 在習知的自行車用煞車裝置中，藉由操作部的擺動操 作使活塞移動。但是，活塞的汽缸內中的移動方向是直線 移動，對於此，連結構件的推壓方向會對應操作部的擺動 位置變化。因此，與活塞的移動方向交叉的方向的力會在 活塞被分散，力的傳達效率會下降，且，活塞成爲推壓汽 缸的內周面。此結果，活塞有可能無法對應操作部的擺動 操作在汽缸內平順地移動。 本創作的課題，是對於自行車用煞車操作裝置，可以 將施加於擺動部的推壓力有效率地朝活塞傳達，可以將活 塞平順地移動。 (用以解決課題的手段） 創作1的自行車用煞車操作裝置，具備：本體部、及 操作部、及汽缸、及活塞。本體部，是可裝設於自行車。 操作部，是對於本體部可擺動地連結。汽缸，是對於本體 部可擺動地連結。活塞，是對應操作部的操作，在汽缸內 可移動地被設置。自行車用煞車操作裝置，是當操作部被 操作時，使沿著活塞的移動方向的方式，使汽缸對於本體 部擺動。 在此自行車用煞車操作裝置中，操作部被擺動操作的 話，活塞會在汽缸內移動，液壓會發生。藉由此液壓使自 -4 · M423663 行車用煞車裝置動作。當此操作部***作時，使沿著活塞 的移動方向的方式，使汽缸對於本體部擺動。因此，可以 使活塞的移動方向及操作部的推壓方向朝相同方向對齊， 可以將推壓力有效率地傳達至活塞。且，藉由推壓力作用 於汽缸的內周面的力成爲不會產生。由此，可以使活塞對 應擺動部的操作在汽缸內平順地移動。 創作2的自行車用煞車操作裝置，是如創作1的自行 φ 車用煞車操作裝置，汽缸，是藉由擺動軸，與本體部可擺 動地被連結。在此情況下，藉由擺動軸使汽缸與本體部可 擺動地被連結。因此，藉由對於操作部可擺動地連結活塞 ，使操作部擺動的話，就可以使汽缸及活塞對於本體部時 常朝相同方向擺動。因此，操作部的推壓方向及活塞的移 動方向可以容易地對齊。 創作3的自行車用煞車操作裝置，是如創作2的自行 車用煞車操作裝置，擺動軸，是貫通汽缸。在此情況下， % 擺動軸因爲是貫通汽缸，所以可以由1根的擺動軸將汽缸 及活塞與本體部可擺動自如地連結。因此，擺動軸的晃動 不易產生，汽缸的擺動成爲平順。 創作4的自行車用煞車操作裝置，是如創作3的自行 車用煞車操作裝置，活塞，具有擺動軸可貫通的長孔。在 此情況下，即使擺動軸貫通活塞，也不會成爲活塞移動的 阻礙’使移動成爲可能。且，藉由長孔可以設定活塞的移 動範圍’進一步’平順的移動成爲可能。 創作5的自行車用煞車操作裝置，是如創作4的自行 -5- M423663 車用煞車操作裝置，擺動軸，是貫通本體部、汽缸及活塞 ，並將其各別可相對擺動地支撐。在此情況下，因爲可以 貫通本體部、汽缸及活塞地裝設擺動軸，所以各別的組裝 、定位成爲容易。 創作6的自行車用煞車操作裝置，是如創作2的自行 車用煞車操作裝置，擺動軸，是從汽缸的外周面朝徑方向 外側突出的軸。本體部，具有將擺動軸擺動支撐的支撐部 。在此情況下，因爲擺動軸不會貫通活塞，所以可以縮短 活塞及汽缸的長度。因此，可達成煞車操作裝置的活塞軸 方向的小型化。 [創作的效果] 依據本創作，當操作部***作時，使沿著活塞的移動 方向的方式，使汽缸對於本體部擺動。因此，可以使活塞 的移動方向及操作部的推壓方向朝相同方向對齊，可以將 推壓力有效率地傳達至活塞。且，藉由推壓力作用於汽缸 的內周面的力成爲不會產生。由此，可以使活塞對應擺動 部的操作在汽缸內平順地移動。 【實施方式】 <第1實施例> 在第1圖中，本創作的第1實施例的自行車用煞車操 作裝置也就是剎車桿20，是可安裝在自行車的車手把12 。刹車桿20,是藉由油壓而動作，爲了將無圖示的油壓煞 -6 - M423663 車器（煞車裝置的一例，例如碟刹）煞車操作而使用。 <剎車桿的整體構成> 在第1圖及第2圖中，剎車桿20，具備：本體部22 、及操作桿構件24 (操作部的一例）、及汽缸26、及活 塞28(第2圖參照）。本體部22，是可裝設於自行車。 操作桿構件24，是對於本體部22可擺動地連結。汽缸26 φ ，是對於本體部22可擺動地連結。活塞28，是在汽缸26 內可移動地被設置。 <本體部的構成> 本體部22，是在第2圖及第3圖中，在第1實施例中 ，可裝設於例如被裝設於車手把12兩端的握部14的軸方 向內側。本體部22，具有：被固定於車手把12的套圈部 3〇、及裝設有汽缸26的汽缸裝設部32、及裝設有操作桿 φ 構件24的操作桿裝設部34。這些的各部是被一體形成。 套圈部30’具有：車手把12可通過的圓形的開口 30a、 及形成於開口 30a的開縫30b。套圈部30，是如第3圖所 示，藉由穿過開縫3 0b配置的固定螺栓36，被固定於車手 把12。 汽缸裝設部32’是如第2圖及第3圖所示，在內部具 有剖面爲大致矩形的汽缸收納空間32a »汽缸收納空間 32a ’是雨端開口。汽缸收納空間32a，具有汽缸26及活 塞28可擺動的大小。汽缸裝設部32，具有一對第1軸安 M423663 裝孔32b。第1軸安裝孔32b，是供裝設將汽缸26與本體 部22可擺動地連結的第1擺動軸40用的孔。在本實施例 中，第1擺動軸40，是在一端面具有六角孔40a，在另一 端側的外周面具有公螺紋部40b的螺栓構件。一對軸安裝 孔32b，是挾持汽缸收納空間32a並貫通汽缸裝設部32的 外側面地形成。在一對第1軸安裝孔32b中，使裝設有第 1擺動軸4〇的附鍔的第1軸套42a及第2軸套42b從汽缸 收納空間32a側被裝設。第1軸套42a是作爲將第1擺動 軸40可轉動自如支撐用的軸承的功能。在本實施例中， 第2軸套4 2b’是作爲供第1擺動軸40螺入的螺帽構件的 功能。 又’在軸安裝孔3 2b的一方，設置螺栓部，將第1擺 動軸40螺固也可以。且，將第丨擺動軸40的兩端假固定 在一對第1軸安裝孔32b也可以。 操作桿裝設部34,具有隔有間隔地被配置的一對第1 托架部34a。一對第1托架部34a，是各別具有第2軸安 裝孔34b (第3圖）。第2軸安裝孔34b，是供裝設將操 作桿構件24與本體部22可擺動地連結的第2擺動軸44 用的孔。第2擺動軸44，是與第1擺動軸40平行地配置 。在第2擺動軸44的軸方向且在中間部，形成有環狀的 止脫溝44a。在第2軸安裝孔34b中，使裝設有第2擺動 軸44的附鍔的第3軸套46a及第4軸套46b從汽缸收納 空間32a側被裝設。第3軸套46a及第4軸套46b，是作 爲將第2擺動軸44可轉動自如支撐用的軸承的功能。 -8- M423663 <操作桿構件的構成> 操作桿構件24，是對於本體部22可擺動地連結，並 且將活塞28可擺動地連結。操作桿構件24，是在第2圖 所示的初期位置、及第4圖所示的煞車位置之間對於本體 部22擺動。操作桿構件24，具有：擺動支撐部24a、及 從擺動支撐部24a延伸的操作桿部24b'及從擺動支撐部 φ 24a朝與操作桿部24b大致垂直交叉的方向延伸的活塞連 結部24c。因此’擺動支撐部24a，是被配置於操作桿部 24b及活塞連結部24c之間。擺動支撐部24a，是被配置 於操作桿裝設部34的一對第1托架部34a之間。擺動支 撐部24a ’具有第2擺動軸44貫通的軸支撐孔24d。且， 在擺動支撐部24a的外側面，沿著軸支撐孔24d的半徑形 成有止脫螺栓孔24e。止脫螺栓孔24e，是爲了將止脫用 的附六角孔的止動螺栓48裝設在第2擺動軸44的止脫溝 φ 44a而設置。第2擺動軸44是藉由止動螺栓48，與操作 桿構件24的擺動一體轉動。操作桿部24b，是供騎士由指 操作煞車器用者。 活塞連結部24c，是爲了使活塞28與操作桿構件24 可擺動地連結而設置。活塞連結部24c，具有一對第2托 架部24f。一對第2托架部24f，具有第3軸安裝孔24g。 第3軸安裝孔24g ’是裝設供將活塞28連結在操作桿構件 24用的第3擺動軸50用的孔。第3擺動軸50，具有：外 側軸部50a、及可與外側軸部50a —體轉動地連結的內側 -9- M423663 軸部50b。外側軸部50a，具有：活塞28的後 部58b可貫通的貫通孔50c、及內側軸部50b 地連結的非圓形孔50d。貫通孔50c，是在外 的外周面貫通非圓形孔5 0d地形成。非圓形孔 通第3擺動軸50的兩軸端地形成。非圓形孔 ，是由將被相面對配置的2個圓弧及2個圓弧 連繫的2個平行的直線所構成的形狀》內側軸 有：活塞28螺入的螺栓孔50e、及卡合於非圓 剖面爲非圓形的外周面50f。 <汽缸的構成> 汽缸26，是如第2圖及第3圖所示，具； 移動的筒狀的汽缸部26a、及將汽缸26與本體 動地連結用的擺動連結部26b、及將油壓作動 器部26c。汽缸部26a，是使作動油被充塡於 內部具有活塞28往復移動的油壓室2 6d(第2 室2 6d，具有圓柱狀的空間，且沿著中心軸C 室2 6d，是在汽缸26的基端側開口。 又，在之後的說明，汽缸26及活塞的基 近操作桿構件24側。且，先端，是指遠離操f 側。 在汽缸部26a的先端，形成有供連接將油 車器供給用的油壓管（無圖示）的卡扣用的螺 螺栓部26e，是與油壓室26d連通。在油壓室 述的連結軸 可一體轉動 側軸部50a 50d，是貫 50d的形狀 的兩端各別 部50b ，具 形孔50d的 良：活塞28 丨部22可擺 油貯存的容 內部，並在 圖）。油壓 形成。油壓 端，是指接 官桿構件24 壓朝油壓煞 栓部26e 。 26d及螺栓 -10- M423663 部26e之間，形成有裝設有捲簧的形態的返回彈簧52的 小徑的彈簧裝設部26f»返回彈簧52，是爲了透過活塞28 將操作桿構件24返回至初期位置而使用。擺動連結部26b ，具有角部形成倒角的矩形剖面。擺動連結部26b，具有 第.1擺動軸40貫通的軸貫通孔26g (第3圖）。容器部 26c，是在其中間挾持隔膜54並藉由蓋構件55被密封。 容器部26c，是與油壓室2 6d連通。蓋構件55，是被螺固 在容器部26c。 <活塞的構成> 活塞28，具有：將油壓室26d沿著中心軸C移動的 活塞本體56、及與活塞本體56的基端嵌合的連結構件58 。活塞本體56，是在先端具有返回彈簧52接觸的小徑的 彈寶架設部56a。由此’活塞28，是朝基端側（第2圖右 方）時常被推迫。在活塞本體56的彈簧架設部56a的基 ^ 端側的外周面，在軸方向隔有間隔地形成：第1密封件裝 設溝56b'及第2密封件裝設溝56c。在第2密封件裝設 溝56c的基端側，軸貫通長孔56d是通過中心軸c的方式 形成。軸貫通長孔56d，具有第1擺動軸40可貫通的寬度 。由此，第1擺動軸40’各別可相對擺動地支撐：貫通本 體部22、汽缸26及活塞28。且’可以藉由軸貫通長孔 56d的軸方向的長度，限制操作桿構件24的擺動範圍。即 ’如第2圖所示’是在第1擺動軸40與軸貫通長孔56d 的一端及另一端接觸的範圍使操作桿構件24擺動。且， -11 - M423663 因爲第1擺動軸40貫通活塞本體56,所以可以將活塞本 體56止轉》 在活塞本體56的基端部中，將連結構件58裝設用的 小徑的裝設突起56e是朝軸方向突出形成。裝設突起56e 的外周面的中央部是比兩端部些微地凹陷。在此，卡合有 〇形環64。在第1密封件裝設溝5 6b中，在先端裝設有具 有唇緣60a的環狀的第1密封構件60。在第2密封件裝設 溝5 6c中，在先端裝設有具有唇緣62a的環狀的第2密封 構件62。第1密封構件60及第2密封構件62的外徑雖相 同’但是內徑，是第2密封構件62比第1密封構件60大 。第2密封構件62,是爲了將油壓室2 6d雙層密封而設置 〇 連結構件58，是爲了使活塞28與操作桿構件24可擺 動地連結而設置。連結構件58，具有：與裝設突起56e嵌 合的嵌合部58a、及與嵌合部58a —體形成並與操作桿構 件24的活塞連結部24c連結的連結軸部58b。嵌合部58a ’是具有嵌合於裝設突起56e的外周面的嵌合凹部58c。 嵌合凹部58c是由間隙嵌合與裝設突起56e的外周面嵌合 ’對於活塞本體56可旋轉自如。在嵌合凹部5 8c的內周 面，形成有裝設有Ο形環64的環裝設溝58d。Ο形環64 ，是被裝設於環裝設溝58d的話，就會被配置於活塞本體 56的裝設突起56e的外周面的中央的凹陷的部分。 連結軸部58b，是在外周面具有與第3擺動軸5〇的內 側軸部50b的螺栓孔5〇e螺合的公螺紋部58e。連結軸部 -12- M423663 58b’是貫通外側軸部5 0a地被配置。在連結軸部5 8b的 基端面中，爲了調整操作桿構件24的初期位置而形成有 卡合有六角棒扳手的六角孔58f。連結構件58，是對於活 塞本體50可旋轉自如，且活塞本體56，因爲是藉由第1 擺動軸40被止轉，只要藉由工具旋轉連結構件58就可以 調整初期位置。例如，將連結軸部58b朝從基端面所見順 時針旋轉的話，操作桿構件的初期位置會從車手把12遠 φ 離，相反的話，接近車手把12。 <剎車桿的動作> 對於剎車桿20的動作，參照第2圖及第4圖說明。 又’在第4圖中，只有附加動作的說明所需要的構件的符 號，其他的符號，因爲與第2圖同樣而未附加符號。 在如此構成的刹車桿20中，騎士是將操作桿構件24 從初期位置朝接近車手把12的方向擺動操作使油壓煞車 φ 器動作。操作桿構件24，是如第4圖所示，朝接近車手把 12的方向繞第2擺動軸44擺動的話，操作桿構件24的活 塞連結部24c會將活塞28推壓。具體而言，與活塞連結 部24c連結的活塞28的連結構件58是藉由操作桿構件24 被推壓，使活塞本體56朝汽缸26的先端側移動。此時， 活塞28是繞第3擺動軸50擺動，並且汽缸26是繞第1 擺動軸4〇擺動。由此，操作桿構件24的推壓方向及活塞 28的移動方向是朝相同方向對齊。換言之，汽缸26是對 應活塞28的擺動朝使活塞28被推的方向繞第1擺動軸40 M423663 擺動。因此，推壓力可不會分散地被傳達至活塞28。 且活塞28不會產生推壓汽缸26的油壓室26d的內壁 面的力。由此，活塞28可在汽缸26的油壓室2 6d內平順 地沿著中心軸C朝汽缸26的先端側移動。此時，在活塞 28中，軸貫通長孔56d是朝第1擺動軸40被導引。因此 ，活塞28可更平順地在油壓室2 6d內移動。由此，油壓 在油壓室26d內及油壓管發生，油壓煞車器可透過油壓管 進行煞車動作。 騎士將手從操作桿構件24分離的話，活塞28是藉由 返回彈簧52的推迫力，將汽缸26的油壓室26d朝基端側 移動。活塞28是藉由返回彈簧52被推壓的話，藉由活塞 28使操作桿構件24被推壓。且，如第2圖所示，第1擺 動軸40若接觸軸貫通長孔56d的先端側的端部（第2圖 左側的端部）的話，操作桿構件24會返回至初期位置。 在此，當操作桿構件24***作時，使沿著活塞28的 移動方向的方式，使汽缸26對於本體部22擺動。因此， 可以使活塞28的移動方向及操作桿構件24的推壓方向朝 相同方向對齊。此結果，因推壓力被分散而作用於汽缸26 的內周面的力成爲不會產生。由此，活塞28可以對應操 作桿構件24的操作在汽缸26內平順地移動^ 接著說明第2實施例及第3實施例。又，在之後的說 明中，功能相同但形狀等不同的情況時，對於第1實施例 的符號附加1 〇〇或200的符號進行說明。且對於相同形狀 的構件只有符號顯示於圖面而省略說明。 -14- M423663 <第2實施例> 在第1實施例中，雖將第2擺動軸44配置成貫通本 體部22、汽缸26及活塞28，但是在變形例中，如第5圖 所示，第1擺動軸140是由從汽缸126的擺動連結部126b 的外周面朝徑方向朝外側突出的軸所構成。因此，第1擺 動軸140，未配置成貫通本體部122、汽缸126、及活塞 128° 在第2實施例中，本體部122的汽缸裝設部132、汽 缸126的擺動連結部12 6b、及活塞128的活塞本體156的 構成是與第〗實施例不同。在之後的說明中只有說明與第 1實施例不同的部分。 本體部122的汽缸裝設部132，是在汽缸收納空間 13 2a的汽缸126側，具有一對開縫132b。開縫132b，是 供裝設將汽缸126與本體部122可擺動地連結的第1擺動 軸140用者。 第1擺動軸140，是如前述與汽缸126的擺動連結部 126b —體形成，從擺動連結部126b的相面對的外周面 1 2 6h朝徑方向外側突出地形成一對。 在一對開縫132b中，裝設有一對第1擺動軸140的 第1軸套142a及第2軸套l42b是被螺固於汽缸裝設部 132的外側面。第1軸套M2a及第2軸套142b，是本體 部122所具有的支撐部的一例。安裝有第1軸套142 a及 第2軸套l42b的汽缸裝設部132的開縫13 2b的周圍的安 -15- M423663 裝面132c是被機械加工成彼此平行。在開縫132b的周圍 的加工面中，形成有將第1軸套142 a及第2軸套14 2b安 裝用的螺栓構件170螺入的一對螺栓孔132d。其他的本體 部122的構成是與第1實施例相同。 汽缸126的汽缸部26a及容器部26c是與第1實施例 同樣的構造。擺動連結部126b，因爲第1擺動軸140未貫 通汽缸126及活塞128，所以沒有軸貫通孔26g的點是與 第1實施例不同。因此，活塞128的軸方向長度變短，擺 動連結部12 6b的中心軸C方向的長度會比第1實施例更 短，使汽缸126整體的中心軸C方向的長度縮短。其他的 汽缸126的構成是與第1實施例同樣。 活塞128，其活塞本體156是與第1實施例相異，連 結構件58，是在與第1實施例同樣的構成的第2實施例中 ’第1擺動軸140因爲不貫通，所以在活塞本體156成爲 不需要軸貫通長孔56d。因此，從第1密封件裝設溝56b 直到裝設突起56e爲止的中心軸C方向的長度縮短。由此 ’如前述汽缸126的中心軸C方向的長度也縮短。其他的 活塞的構成是與第1實施例同樣。 <第3實施例> 在第1實施例及第2實施例中，以將被配置於車手把 1 2的握部1 4的軸方向內側的剎車桿20 (或刹車桿1 20 ) 爲例說明本創作。在第3實施例中，如第6圖及第7圖所 示，以可裝設於朝向自行車的進行方向被配置的被稱爲 -16- M423663 TT桿的車手把212的先端的剎車桿220爲例 〇 剎車桿220，具有：本體部2〗2、及操作桿 及汽缸226、及活塞228(第7圖）。 <本體部的構成> 本體部222，具有：被固定於車手把212的 φ 固定部230、及操作桿及汽缸裝設部232。固定咨 藉由壓入、彈性卡合等的適宜的固定手段被固定 212的內周面的先端部是先端較細的筒狀的構件 23 0，具有在周方向隔有間隔地被配置的固定用 縫23 0b。固定部230的內周側的空間，是配置窄 及活塞228的汽缸收納空間232a。 汽缸及操作桿裝設部234，具有被一體形成 架部234a。一對托架部234a，是隔有間隔地被 φ 其間可配置操作桿構件224及汽缸226»托架部 有第6圖所示的第1軸安裝孔23 2b及第2軸安 。第1軸安裝孔232b，是供裝設將汽缸226對 222可擺動地連結用的第1擺動軸240用的孔。 裝孔234b’是供裝設將操作桿構件224對於本體 擺動地連結用的第2擺動軸244用的孔。又，第 240及第2擺動軸244，雖是直接被裝設在第1 232b及第2軸安裝孔234b也可以，但是與第1 樣地透過軸套被裝設也可以。 明本創作 件 224、 內周面的 ；230 ，是 於車手把 。固定部 的複數開 汽缸2 2 6 的一對托 配置，在 234a ，具 裝孔2 3 4 b 於本體部 第2軸安 部222可 1擺動軸 軸安裝孔 實施例同 -17- M423663 <操作桿構件的構成> 操作桿構件224，是對於本體部222可 ’並且將活塞228可擺動地連結。操作桿構 第7圖所示的初期位置、及第8圖所示的煞 於本體部22擺動。操作桿構件224，具有 220、及從擺動支撐部20延伸的操作桿部 操作桿部224b途中的活塞連結部224c。因 部24a，是被配置於操作桿部24b及活塞連) 。擺動支撐部24a，是被配置於操作桿構件 擺動支撐部224a，具有第2擺動軸244貫 224d » 活塞連結部224c，是爲了將活塞228 224可擺動地連結而設置。活塞連結部224c 形的開口 224f。活塞連結部 224c，具有第 2 2 4g。第3軸安裝孔224g，是供裝設將活塞 構件224連結用的第3擺動軸50用的孔。負 ，是與第1實施例同樣的構造。 <汽缸的構成> 汽缸226，是如第7圖所示，外形雖不 與第1實施例同樣的構成。汽缸226，具有 動的筒狀的汽缸部226a、及將汽缸2 26與本 動地連結用的擺動連結部22 6b。在第3實施 擺動地被連結 件224 ，是在 車位置之間對 =擺動支撐部 224b '及設於 此，擺動支撐 洁部24c之間 224的一端。 通的軸支撐孔 與操作桿構件 ，具有大致圓 3軸安裝孔 228與操作桿 I 3擺動軸50 同但是基本上 :活塞228移 體部22可擺 例1中，未設置 •18- M423663 容器。汽缸部22 6a，是使作動油被充塡於內部< 具有活塞228往復移動的油壓室22 6d。油壓室 有圓柱狀的空間，沿著中心軸C形成。油壓室 在汽缸226的基端側開口。 在汽缸部226a的先端，形成有供連接將和 煞車器供給用的油壓管（無圖示）的卡扣用的磨 。螺栓部26e，是與油壓室226d連通。在油壓； φ 螺栓部26e之間，形成有裝設有捲簧的形態的 252的小徑的彈簧裝設部226f«返回彈簧252, 過活塞228將操作桿構件224返回至初期位置 動連結部 226b，具有第 1擺動軸 240貫通的 2 2 6 g ° <活塞的構成> 活塞22 8，具有：將油壓室226d沿著中心 φ 的活塞本體256、及嵌合於活塞本體25 6基端& 258。活塞228，是與第1實施例同樣地藉由返[ 朝基端側被推迫。活塞本體2 56，可取代裝設突 置裝設凹部256e的點是與第1實施例不同。J ，因爲是與第1實施例大致相同而省略說明。 裝設凹部256e，是圓柱狀的凹陷。連結構例 旋轉自如地被裝設在裝設凹部2 5 6e。在第3實Μ 脫用的〇形環264,也是裝設於連結構件258» 連結構件258，是爲了將活塞228與操作和 並在內部 226d ，具 226d ，是 壓朝油壓 栓部26e [226d 及 返回彈簧 是爲了透 使用。擺 軸貫通孔 軸C移動 J連結構件 3彈簧252 起56e設 :他的構成 :258是可 i例中，止 ί構件224 -19- M423663 可擺動地連結而設置。連結構件2 5 8，具有：嵌合於裝設 凹部256e的嵌合軸部258a、及與嵌合軸部258a —體形成 並與操作桿構件224的活塞連結部224c連結的連結軸部 58b。連結軸部58b因爲是與第1實施例同樣的構成，所 以省略說明。藉由連結軸部58b與第1實施例同樣地可以 調整操作桿構件224的初期位置。嵌合軸部25 8a是由間 隙嵌合與裝設凹部256e的內周面嵌合。在嵌合軸部258a 的外周面，形成有裝設有〇形環264的環裝設溝258d。 剎車桿220的動作，是與第1實施例同樣，而省略說 明。 在第3實施例的刹車桿22〇中，從第7圖所示的初期 位置朝向第8圖的煞車位置操作桿構件224***作時，使 沿著活塞228的移動方向的方式，使汽缸226對於本體部 222擺動。因此，可以使活塞22 8的移動方向及操作桿構 件224的推壓方向朝相同方向對齊。此結果，藉由推壓力 作用於汽缸226的內周面的力成爲不會產生。由此，活塞 228可以對應操作桿構件224的操作在汽缸226內平順地 移動。 在第3實施例中，操作桿構件224的第3擺動軸250 因爲被配置在操作桿構件的第2擺動軸244及操作桿部 224b之間，汽缸226的擺動範圍變得比第1實施例窄。因 此，與第1實施例相比可以達成剎車桿的輕小化。 M423663 以上，雖說明了本創作的一實施例’但是本創作不限 定於上述實施例，在不脫離創作的實質範圍內可進行各種 變更。 (a)在前述實施例中，雖藉由設在汽缸內的返回彈 簧將操作部朝初期位置推迫，但是本創作不限定於此。例 如，將操作部藉由扭轉捲簧等的適宜的推迫構件返回至初 期位置也可以》 (b )在前述實施例中，雖以油壓式的刹車桿爲例說 明本創作，但是空壓或水壓式的刹車桿也可以適用本創作 【圖式簡單說明】 [第1圖]本創作的第1實施例的剎車桿的立體圖。 [第2圖]煞車解除位置中的剎車桿的平面剖面圖。 [第3圖]該部分解立體圖。 [第4圖]煞車位置中的刹車桿的平面剖面圖。 [第5圖]第2實施例的相當於第3圖的圖》 [第6圖]第3實施例的剎車桿的側面圖。 [第7圖]第3實施例的刹車桿的相當於第2圖的圖^ [第8圖]第3實施例的剎車桿的相當於第4圖的圖^ 【主要元件符號說明】 12 :車手把 14 :握部M423663 V. New description: [New technical field] This creation is about the brake operating device, especially the bicycle operating device for bicycles. [Prior Art] In the brake operating device for bicycles, it is conventional to operate the φ φ vehicle device by hydraulic pressure (for example, Taiwan New Type M342334). A conventional brake operating device includes a body portion, an operation portion, a cylinder, and a piston that can be mounted on a bicycle, for example, a handlebar. The operation unit is rotatably coupled to the main body unit. The cylinder is disposed inside the body portion. The operation unit is configured to connect the piston so as to be swingable. The piston is connected to the operating lever member at one end, and the swing of the corresponding operating portion moves in the cylinder. The piston has a piston body having a first end and a second end and moving inside the cylinder, and a connecting member. The first end of the piston body is urged toward the second end side φ by the return spring. The connecting member has a connecting portion that is swingably coupled to the operating lever member at one end. The joint member has a projecting portion that protrudes in a spherical shape at the other end. The piston body has a recessed portion which is spherically recessed at the second end and engages with the protruding portion. In the conventional brake operating device of such a configuration, when the operating portion is swung in the direction approaching the handlebar, the operating portion pushes the piston body through the connecting member. At this time, the direction of the force urged toward the connecting member is different from the moving direction in the cylinder of the piston, so that the force is dispersed toward the piston body. -3- M423663 [New content] [Problems to be solved by the author] In the conventional bicycle brake device, the piston is moved by the swing operation of the operating portion. However, the moving direction in the cylinder of the piston is linearly moved, and the pressing direction of the connecting member changes in accordance with the swinging position of the operating portion. Therefore, the force in the direction intersecting the moving direction of the piston is dispersed in the piston, the force transmission efficiency is lowered, and the piston becomes the inner peripheral surface of the pressing cylinder. As a result, the piston may not smoothly move in the cylinder corresponding to the swing operation of the operating portion. The subject of the present invention is that the bicycle brake operating device can efficiently transmit the pressing force applied to the swing portion to the piston, and can smoothly move the piston. (Means for Solving the Problem) The bicycle brake operating device of Creation 1 includes a main body portion, an operation portion, a cylinder, and a piston. The body portion can be mounted on a bicycle. The operation unit is swingably coupled to the main body unit. The cylinder is swingably coupled to the body portion. The piston is movably disposed in the cylinder corresponding to the operation of the operating portion. The bicycle brake operating device swings the cylinder to the main body so as to move along the direction of movement of the piston when the operation portion is operated. In this bicycle brake operating device, when the operating portion is oscillated, the piston moves in the cylinder and hydraulic pressure occurs. The hydraulic brake is operated by the -4 · M423663 driving brake device. When the operation portion is operated, the cylinder is swung against the body portion in such a manner as to move the piston. Therefore, the moving direction of the piston and the pressing direction of the operating portion can be aligned in the same direction, and the pressing force can be efficiently transmitted to the piston. Further, the force acting on the inner circumferential surface of the cylinder by the pressing force does not occur. Thereby, the operation of the piston corresponding to the swing portion can be smoothly moved in the cylinder. The bicycle brake operating device of Creation 2 is a self-operating brake operating device of the creation 1, and the cylinder is swingably coupled to the main body portion by the swing shaft. In this case, the cylinder and the body portion are swingably coupled by the swing shaft. Therefore, by swinging the piston to the operating portion and swinging the operating portion, the cylinder and the piston can be swung in the same direction with respect to the main body portion. Therefore, the pressing direction of the operating portion and the moving direction of the piston can be easily aligned. The bicycle operating device for the creation 3 is a bicycle operating device such as the creation 2, and the swinging shaft is a through cylinder. In this case, since the % swing shaft is a through cylinder, the cylinder and the piston can be oscillatably coupled to the main body by one swing shaft. Therefore, the sway of the swing shaft is less likely to occur, and the swing of the cylinder becomes smooth. The bicycle operating device for the creation 4 is a bicycle operating device such as the creation 3, and the piston has a long hole through which the swing shaft can pass. In this case, even if the swing shaft penetrates the piston, it does not become an obstacle to the movement of the piston. Further, by the long hole, it is possible to set the movement range of the piston 'further' smooth movement. The bicycle brake operating device of the creation 5 is a self-operating-5-M423663 bicycle brake operating device of the creation 4, and the swing shaft is penetrated through the main body portion, the cylinder and the piston, and is supported by the respective swings. In this case, since the swing shaft can be attached to the main body portion, the cylinder, and the piston, it is easy to assemble and position each. The brake operating device for bicycles of the creation 6 is a bicycle operating device of the creation 2, and the swinging shaft is a shaft that protrudes outward in the radial direction from the outer peripheral surface of the cylinder. The body portion has a support portion that swings and supports the swing shaft. In this case, since the swing shaft does not penetrate the piston, the length of the piston and the cylinder can be shortened. Therefore, the size of the piston shaft of the brake operating device can be reduced. [Effect of Creation] According to the present creation, when the operation portion is operated, the cylinder is swung against the body portion in such a manner as to move the piston. Therefore, the moving direction of the piston and the pressing direction of the operating portion can be aligned in the same direction, and the pressing force can be efficiently transmitted to the piston. Further, the force acting on the inner circumferential surface of the cylinder by the pressing force does not occur. Thereby, the operation of the piston corresponding to the swing portion can be smoothly moved in the cylinder. [Embodiment] <First Embodiment> In Fig. 1, a bicycle brake operating device according to a first embodiment of the present invention, that is, a brake lever 20, is a handlebar 12 that can be attached to a bicycle. The brake lever 20 is operated by hydraulic pressure, and is used to brake a hydraulic device 无 -6 - M423663 (an example of a brake device, for example, a disc brake). <Overall Configuration of Brake Bar> In FIGS. 1 and 2, the brake lever 20 includes a main body portion 22, an operation lever member 24 (an example of an operation portion), a cylinder 26, and a piston 28 (first) 2 figure reference). The body portion 22 is mountable to a bicycle. The lever member 24 is swingably coupled to the body portion 22. The cylinder 26 φ is swingably coupled to the body portion 22. Piston 28 is movably disposed within cylinder 26. <Configuration of Main Body Section> The main body portion 22 is in the second and third figures, and in the first embodiment, it can be mounted, for example, in the axial direction of the grip portion 14 attached to both ends of the handlebar 12 Inside. The main body portion 22 includes a ferrule portion 3A fixed to the handlebar 12, a cylinder mounting portion 32 to which the cylinder 26 is mounted, and an operating lever mounting portion 34 to which the operating lever φ member 24 is attached. Each of these parts is integrally formed. The ferrule portion 30' has a circular opening 30a through which the handlebar 12 can pass, and a slit 30b formed in the opening 30a. The ferrule portion 30, as shown in Fig. 3, is fixed to the handlebar 12 by a fixing bolt 36 disposed through the slit 30b. The cylinder mounting portion 32' has a cylinder housing space 32a having a substantially rectangular cross section as shown in Figs. 2 and 3, and the cylinder housing space 32a' is a rain end opening. The cylinder housing space 32a has a size in which the cylinder 26 and the piston 28 can swing. The cylinder mounting portion 32 has a pair of first shaft mounting M423663 mounting holes 32b. The first shaft attachment hole 32b is provided with a hole for the first swing shaft 40 that swingably connects the cylinder 26 and the main body portion 22. In the present embodiment, the first swing shaft 40 is a bolt member having a hexagonal hole 40a on one end surface and a male screw portion 40b on the outer peripheral surface on the other end side. The pair of shaft mounting holes 32b are formed by gripping the cylinder housing space 32a and penetrating the outer surface of the cylinder mounting portion 32. In the pair of first shaft attachment holes 32b, the first boss 42a and the second boss 42b to which the first swing shaft 4A is attached are attached from the cylinder accommodation space 32a side. The first boss 42a functions as a bearing for rotatably supporting the first swing shaft 40. In the present embodiment, the second boss 4 2b' functions as a nut member into which the first swing shaft 40 is screwed. Further, a bolt portion may be provided on one of the shaft mounting holes 3 2b, and the first swing shaft 40 may be screwed. Further, both ends of the second swing shaft 40 may be fixed to the pair of first shaft mounting holes 32b. The operation lever mounting portion 34 has a pair of first bracket portions 34a that are disposed with a space therebetween. The pair of first bracket portions 34a each have a second shaft mounting hole 34b (Fig. 3). The second shaft attachment hole 34b is provided with a hole for the second swing shaft 44 that swingably connects the operating lever member 24 and the main body portion 22. The second swing shaft 44 is disposed in parallel with the first swing shaft 40. An annular retaining groove 44a is formed in the axial direction of the second swing shaft 44 at the intermediate portion. In the second shaft attachment hole 34b, the third boss 46a and the fourth boss 46b to which the second swing shaft 44 is attached are attached from the cylinder accommodation space 32a side. The third bushing 46a and the fourth bushing 46b function as bearings for rotatably supporting the second swinging shaft 44. -8- M423663 <Configuration of Operation Lever Member> The operation lever member 24 is swingably coupled to the main body portion 22, and the piston 28 is swingably coupled. The lever member 24 swings with respect to the main body portion 22 between the initial position shown in Fig. 2 and the braking position shown in Fig. 4. The operation lever member 24 has a swing support portion 24a, an operation lever portion 24b' extending from the swing support portion 24a, and a piston coupling portion 24c extending from the swing support portion φ24a in a direction substantially perpendicular to the operation lever portion 24b. Therefore, the swing support portion 24a is disposed between the operation lever portion 24b and the piston coupling portion 24c. The swing support portion 24a is disposed between the pair of first bracket portions 34a of the operation lever mounting portion 34. The swing support portion 24a' has a shaft support hole 24d through which the second swing shaft 44 passes. Further, on the outer side surface of the swing support portion 24a, a stopper bolt hole 24e is formed along the radius of the shaft support hole 24d. The bolt hole 24e is provided in order to attach the stopper bolt 48 for the hexagonal hole for the stop to the retaining groove φ 44a of the second swing shaft 44. The second swing shaft 44 is integrally rotated with the swing of the operating lever member 24 by the stopper bolt 48. The operating lever portion 24b is for the driver to operate the brake device. The piston coupling portion 24c is provided to swingably connect the piston 28 and the lever member 24. The piston coupling portion 24c has a pair of second bracket portions 24f. The pair of second bracket portions 24f have third shaft mounting holes 24g. The third shaft attachment hole 24g' is a hole for attaching the third swing shaft 50 for connecting the piston 28 to the operation lever member 24. The third swing shaft 50 has an outer shaft portion 50a and an inner side -9-M423663 shaft portion 50b that is rotatably coupled to the outer shaft portion 50a. The outer shaft portion 50a has a through hole 50c through which the rear portion 58b of the piston 28 can pass, and a non-circular hole 50d to which the inner shaft portion 50b is coupled. The through hole 50c is formed by penetrating the non-circular hole 50d on the outer peripheral surface. The non-circular holes are formed at the two axial ends of the third swing shaft 50. The non-circular hole is a shape formed by two parallel straight lines connecting two arcs and two arcs arranged facing each other. The inner shaft includes a bolt hole 50e into which the piston 28 is screwed, and The outer peripheral surface 50f is non-circular in a non-circular cross section. <Configuration of Cylinder> The cylinder 26 is a tubular cylinder portion 26a that moves as shown in Figs. 2 and 3, and a swing connecting portion 26b that dynamically connects the cylinder 26 to the main body, and The hydraulic actuator portion 26c is pressed. The cylinder portion 26a is a hydraulic chamber 26d that has the piston 28 reciprocated inside the actuating oil (the second chamber 26d has a cylindrical space, and along the central axis C chamber 26d, is in the cylinder Further, in the following description, the cylinder 26 and the piston are closer to the lever member 24 side, and the tip end is away from the operation f side. At the tip end of the cylinder portion 26a, a connection is formed. The screw bolt portion 26e for snapping the oil pressure pipe (not shown) for supplying the fuel tank is in communication with the hydraulic pressure chamber 26d. The connecting shaft in the hydraulic pressure chamber can integrally rotate the side shaft portion 50a to 50d. The respective ends 50b of the shape of the 50d shape are good, and the shape of the hole 50d is good: the inside of the piston 28 can be stored inside the oil reservoir, and is shown in the figure). Oil pressure is formed. The hydraulic end means that the contact lever member 24 is pressed against the hydraulic pressure plug portion 26e. Between 26d and bolt-10-M423663 between the portions 26e, a spring mounting portion 26f»return spring 52 having a small diameter of the return spring 52 in the form of a coil spring is formed to return the operating lever member 24 through the piston 28. Use it in the initial position. The swing joint portion 26b has a rectangular cross section in which the corner portion is chamfered. The swing connecting portion 26b has a shaft through hole 26g through which the first swing shaft 40 passes (Fig. 3). The container portion 26c holds the diaphragm 54 therebetween and is sealed by the cover member 55. The container portion 26c is in communication with the hydraulic chamber 26d. The lid member 55 is screwed to the container portion 26c. <Configuration of Piston> The piston 28 has a piston body 56 that moves the hydraulic chamber 26d along the central axis C, and a coupling member 58 that is fitted to the proximal end of the piston body 56. The piston body 56 is a spring erection portion 56a having a small diameter at which the return spring 52 contacts at the tip end. Thus, the piston 28 is constantly urged toward the base end side (the right side of Fig. 2). The outer peripheral surface of the base end side of the spring mounting portion 56a of the piston main body 56 is formed at intervals in the axial direction: a first seal mounting groove 56b' and a second seal mounting groove 56c. On the proximal end side of the second seal mounting groove 56c, the shaft through long hole 56d is formed by the central axis c. The shaft penetrates the long hole 56d and has a width through which the first swing shaft 40 can pass. Thereby, the first swing shafts 40' are supported so as to be rotatable relative to each other: the body portion 22, the cylinders 26, and the pistons 28 are penetrated. Further, the swing range of the lever member 24 can be restricted by the length of the shaft passing through the axial direction of the long hole 56d. That is, as shown in Fig. 2, the operation lever member 24 is swung in a range in which the first swing shaft 40 is in contact with one end and the other end of the shaft through long hole 56d. Further, -11 - M423663, since the first swing shaft 40 penetrates the piston main body 56, the piston main body 56 can be stopped." In the base end portion of the piston main body 56, a small-diameter mounting protrusion for attaching the connecting member 58 is provided. 56e is formed to protrude in the axial direction. The central portion of the outer peripheral surface of the mounting projection 56e is slightly recessed from the both end portions. Here, a stirrup 64 is engaged. In the first seal mounting groove 56b, an annular first sealing member 60 having a lip 60a is attached to the tip end. In the second seal mounting groove 56c, an annular second sealing member 62 having a lip 62a is attached to the tip end. The first sealing member 60 and the second sealing member 62 have the same outer diameter, but the inner diameter is larger than the first sealing member 60. The second seal member 62 is provided with a dam joint member 58 for double-sealing the hydraulic chamber 26d to provide a swinging connection between the piston 28 and the lever member 24. The coupling member 58 has a fitting portion 58a that engages with the mounting projection 56e, and a coupling shaft portion 58b that is formed integrally with the fitting portion 58a and coupled to the piston coupling portion 24c of the lever member 24. The fitting portion 58a' is a fitting recess 58c having an outer peripheral surface fitted to the mounting projection 56e. The fitting recessed portion 58c is fitted to the outer peripheral surface of the mounting projection 56e by the gap fitting, and is rotatably movable to the piston body 56. A ring attachment groove 58d to which a beak ring 64 is attached is formed on the inner peripheral surface of the fitting recessed portion 58c. When the ring-shaped ring 64 is attached to the ring-mounted groove 58d, it is placed in a recessed portion in the center of the outer peripheral surface of the mounting projection 56e of the piston body 56. The connecting shaft portion 58b has a male screw portion 58e that is screwed to the bolt hole 5〇e of the inner side shaft portion 50b of the third swing shaft 5b on the outer peripheral surface. The connecting shaft portion -12- M423663 58b' is disposed to penetrate the outer shaft portion 50a. In the base end surface of the connecting shaft portion 58b, a hexagonal hole 58f in which a hexagonal bar wrench is engaged is formed in order to adjust the initial position of the lever member 24. The coupling member 58 is rotatable with respect to the piston body 50, and since the piston body 56 is stopped by the first swing shaft 40, the initial position can be adjusted by rotating the coupling member 58 by a tool. For example, when the connecting shaft portion 58b is rotated clockwise as seen from the base end surface, the initial position of the lever member is far away from the driver's handle 12, and vice versa. <Operation of the brake lever> The operation of the brake lever 20 will be described with reference to Figs. 2 and 4 . Further, in Fig. 4, only the symbols of the members required for the explanation of the additional operations, and the other symbols are the same as in the second drawing, and no symbols are attached. In the brake lever 20 thus constructed, the knight swings the operation lever member 24 from the initial position toward the direction of the handlebar 12 to operate the hydraulic brake φ. When the lever member 24 is swung around the second swing shaft 44 in the direction approaching the handlebar 12 as shown in Fig. 4, the piston connecting portion 24c of the lever member 24 presses the piston 28. Specifically, the connecting member 58 of the piston 28 coupled to the piston connecting portion 24c is pressed by the operating lever member 24, and the piston body 56 is moved toward the tip end side of the cylinder 26. At this time, the piston 28 is swung around the third swing shaft 50, and the cylinder 26 is swung around the first swing shaft 4〇. Thereby, the pressing direction of the lever member 24 and the moving direction of the piston 28 are aligned in the same direction. In other words, the cylinder 26 is swung about the first swing shaft 40 M423663 in the direction in which the piston 28 is pushed in response to the swing of the piston 28. Therefore, the pushing force can be transmitted to the piston 28 without being dispersed. Further, the piston 28 does not generate a force that urges the inner wall surface of the oil pressure chamber 26d of the cylinder 26. Thereby, the piston 28 can smoothly move toward the tip end side of the cylinder 26 along the center axis C in the oil pressure chamber 26d of the cylinder 26. At this time, in the piston 28, the shaft through-long hole 56d is guided toward the first swing shaft 40. Therefore, the piston 28 can move more smoothly in the oil pressure chamber 26d. Thereby, the hydraulic pressure is generated in the hydraulic pressure chamber 26d and the hydraulic pressure pipe, and the hydraulic brake device can perform the braking operation through the hydraulic pressure pipe. When the knight separates the hand from the lever member 24, the piston 28 moves the hydraulic chamber 26d of the cylinder 26 toward the proximal end side by the biasing force of the return spring 52. When the piston 28 is pressed by the return spring 52, the lever member 28 is pressed by the piston 28. As shown in Fig. 2, when the first swing shaft 40 is in contact with the end portion of the distal end side of the long hole 56d (the end portion on the left side in Fig. 2), the operation lever member 24 is returned to the initial position. Here, when the lever member 24 is operated, the cylinder 26 is swung against the body portion 22 in such a manner as to move the piston 28. Therefore, the moving direction of the piston 28 and the pressing direction of the lever member 24 can be aligned in the same direction. As a result, the force acting on the inner circumferential surface of the cylinder 26 due to the dispersion of the pressing force does not occur. Thereby, the piston 28 can smoothly move in the cylinder 26 in accordance with the operation of the operating lever member 24. Next, the second embodiment and the third embodiment will be described. Further, in the following description, when the functions are the same but the shapes and the like are different, a symbol of 1 〇〇 or 200 is added to the symbols of the first embodiment. For the members of the same shape, only the symbols are shown on the drawing, and the description is omitted. -14- M423663 <Second Embodiment> In the first embodiment, the second swing shaft 44 is disposed to penetrate the main body portion 22, the cylinder 26, and the piston 28, but in the modified example, as shown in Fig. 5 The first swing shaft 140 is constituted by a shaft that protrudes outward in the radial direction from the outer circumferential surface of the swing coupling portion 126b of the cylinder 126. Therefore, the first swing shaft 140 is not disposed to penetrate the main body portion 122, the cylinder 126, and the piston 128°. In the second embodiment, the cylinder mounting portion 132 of the main body portion 122, the swing connecting portion 12 6b of the cylinder 126, and The configuration of the piston body 156 of the piston 128 is different from that of the first embodiment. In the following description, only the parts different from the first embodiment will be described. The cylinder mounting portion 132 of the main body portion 122 has a pair of slits 132b on the cylinder 126 side of the cylinder housing space 13 2a. The slit 132b is for mounting the first swing shaft 140 that swingably connects the cylinder 126 and the main body portion 122. The first swing shaft 140 is formed integrally with the swing joint portion 126b of the cylinder 126 as described above, and is formed to protrude from the outer peripheral surface 126h of the swing joint portion 126b so as to protrude outward in the radial direction. In the pair of slits 132b, the first boss 142a and the second boss l42b to which the pair of first swing shafts 140 are attached are screwed to the outer surface of the cylinder mounting portion 132. The first boss M2a and the second boss 142b are examples of the support portion of the body portion 122. The mounting surface 132c around the slit 13 2b of the cylinder mounting portion 132 to which the first bushing 142a and the second bushing l42b are attached is machined to be parallel to each other. A pair of bolt holes 132d into which the bolt members 170 for mounting the first boss 142a and the second boss 142b are screwed are formed in the machined surface around the slit 132b. The configuration of the other body portion 122 is the same as that of the first embodiment. The cylinder portion 26a and the container portion 26c of the cylinder 126 have the same configuration as that of the first embodiment. Since the first swing shaft 140 does not pass through the cylinder 126 and the piston 128, the point of the shaft connecting hole 126b is different from that of the first embodiment. Therefore, the axial length of the piston 128 is shortened, and the length of the swing coupling portion 126b in the direction of the central axis C is shorter than that of the first embodiment, and the length of the entire cylinder 126 in the direction of the central axis C is shortened. The configuration of the other cylinder 126 is the same as that of the first embodiment. In the piston 128, the piston body 156 is different from that of the first embodiment, and the connecting member 58 is the same as the first embodiment. In the second embodiment, the first swing shaft 140 is not penetrated, so the piston body is 156 does not require the shaft to pass through the long hole 56d. Therefore, the length in the direction of the central axis C from the first seal mounting groove 56b to the attachment of the projection 56e is shortened. Thus, the length of the cylinder 126 in the direction of the central axis C is also shortened. The configuration of the other piston is the same as that of the first embodiment. <Third Embodiment> In the first embodiment and the second embodiment, the brake lever 20 (or the brake lever 1 20) disposed on the inner side in the axial direction of the grip portion 14 of the handlebar 1 2 is This example illustrates this creation. In the third embodiment, as shown in FIGS. 6 and 7, the front end brake lever 220 of the handlebar 212, which is called a -16-M423663 TT rod, which is disposed in the direction in which the bicycle is traveling, is disposed. For example, the brake lever 220 has a main body portion 2, an operating lever and a cylinder 226, and a piston 228 (Fig. 7). <Configuration of Main Body Section> The main body portion 222 includes a φ fixing portion 230 fixed to the handlebar 212, and an operation lever and a cylinder mounting portion 232. The tip end portion of the inner circumferential surface of the fixing portion 212 that is fixed by a suitable fixing means such as press fitting or elastic engagement is a cylindrical member 23 0 having a narrow tip end, and has a fixing in the circumferential direction at intervals. Use slit 23 0b. The space on the inner circumference side of the fixing portion 230 is a cylinder housing space 232a in which the piston 228 is narrowly disposed. The cylinder and lever mounting portion 234 has a frame portion 234a integrally formed. The pair of bracket portions 234a are spaced apart from each other by φ, and the first shaft mounting hole 23 2b and the second shaft shaft shown in Fig. 6 are disposed between the lever member 224 and the cylinder 226» bracket portion. The first shaft attachment hole 232b is a hole for mounting the first swing shaft 240 for swingably connecting the cylinder 226 pair 222. The fitting hole 234b' is a hole for attaching the second swing shaft 244 for swinging the operating lever member 224 to the main body. Further, the 240th and second swing shafts 244 may be directly attached to the first 232b and the second shaft mounting holes 234b, but may be attached to the first through hole bushing. The original creation piece 224, the inner circumference; 230, is the driver's handle. A pair of brackets of the plurality of open cylinders 2 2 6 of the fixing portion, at 234a, with holes 2 3 4 b for the second shaft portion 222 of the body portion, 1 swinging shaft shaft mounting hole, embodiment -17-M423663 < operation Configuration of the lever member > The lever member 224 is operative to the body portion 222 and the piston 228 is swingably coupled. The operation lever structure is rotated at the initial position shown in Fig. 7 and the body portion 22 shown in Fig. 8. The lever member 224 has 220 and a piston connecting portion 224c in the middle of the operating lever portion operating lever portion 224b extending from the swinging support portion 20. The portion 24a is disposed on the operating lever portion 24b and the piston joint). The swing support portion 24a is disposed on the swing lever support portion 224a of the operation lever member, and has a second swing shaft 244 224d » a piston coupling portion 224c provided to swingably connect the piston 228 224. The piston coupling portion 224c has an opening 224f. The piston connecting portion 224c has a second 24g. The third shaft mounting hole 224g is a hole for mounting the third swing shaft 50 for connecting the piston member 224. Negative is the same structure as that of the first embodiment. <Configuration of Cylinder> The cylinder 226 has the same configuration as that of the first embodiment as shown in Fig. 7. The cylinder 226 has a cylinder portion 226a that is movable in a cylindrical shape, and a swing connecting portion 22b that connects the cylinder 226 to the present body. In the third embodiment, the swinging joint member 224 is an end portion between the vehicle position pair = swing support portion 224b' and the swing support bracket portion 24c. The through shaft support hole and the operating lever member have a substantially circular 3-axis mounting hole 228 and the operating lever I 3 swinging shaft 50 are the same but basically: the piston 228 is moved in the body portion 22 and can be placed in the example 1, and is not provided. • 18- M423663 container . The cylinder portion 22 6a is a hydraulic chamber 22 6d in which the operating oil is filled in the interior <the piston 228 reciprocates. The oil pressure chamber has a cylindrical space formed along the central axis C. The oil pressure chamber is opened at the base end side of the cylinder 226. At the tip end of the cylinder portion 226a, a grinding for attaching a hydraulic pipe (not shown) for supplying the brake device is formed. The bolt portion 26e is in communication with the hydraulic chamber 226d. Between the hydraulic pressure and the φ bolt portion 26e, a spring mounting portion 226f «return spring 252 having a small diameter of 252 in the form of a coil spring is formed, and the operating rod member 224 is returned to the initial position by the over piston 228. The portion 226b has a 2 2 6 g ° through which the first swing shaft 240 passes. <Configuration of the piston> The piston 22 8 has a piston body 256 that presses the hydraulic chamber 226d along the center φ, and is fitted to the piston body 25 6 base end & 258. The piston 228 is urged toward the base end side in the same manner as in the first embodiment. The piston body 2 56 is different from the first embodiment in that it is provided instead of the projection mounting recess 256e. J is substantially the same as the first embodiment, and the description thereof is omitted. The recess 256e is provided as a cylindrical recess. The connection structure example is rotatably mounted in the installation recess 2 5 6e. The 〇 ring 264, which is used in the third embodiment, is also mounted on the joint member 258»the joint member 258 for the purpose of the piston 228 and the inner portion 226d, 226d, which is pressed against the hydraulic plug portion 26e [ The 226d and return springs are for use. Pendulum shaft through hole Axis C movement J coupling member 3 Spring 252 from 56e: His configuration: 258 is possible. In the example, the stopper members 224 -19- M423663 are swingably connected. The coupling member 258 has a fitting shaft portion 258a fitted to the fitting recess 256e, and a coupling shaft portion 58b integrally formed with the fitting shaft portion 258a and coupled to the piston coupling portion 224c of the lever member 224. Since the connecting shaft portion 58b has the same configuration as that of the first embodiment, the description thereof is omitted. The initial position of the lever member 224 can be adjusted by the connecting shaft portion 58b in the same manner as in the first embodiment. The fitting shaft portion 25 8a is fitted to the inner circumferential surface of the fitting recess portion 256e by the gap fitting. A ring attachment groove 258d to which a beak ring 264 is attached is formed on the outer circumferential surface of the fitting shaft portion 258a. The operation of the brake lever 220 is the same as that of the first embodiment, and the description thereof is omitted. In the brake lever 22A of the third embodiment, when the lever member 224 is operated from the initial position shown in FIG. 7 toward the brake position of FIG. 8, the cylinder 226 is moved along the moving direction of the piston 228. The body portion 222 is swung. Therefore, the moving direction of the piston 22 8 and the pressing direction of the operating lever member 224 can be aligned in the same direction. As a result, the force acting on the inner circumferential surface of the cylinder 226 by the pressing force does not occur. Thus, the piston 228 can move smoothly within the cylinder 226 in response to operation of the operating lever member 224. In the third embodiment, the third swing shaft 250 of the operation lever member 224 is disposed between the second swing shaft 244 and the operation lever portion 224b of the operation lever member, and the swing range of the cylinder 226 becomes larger than that of the first embodiment. narrow. Therefore, the brake lever can be made lighter than in the first embodiment. Although an embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit and scope of the invention. (a) In the above embodiment, the operation portion is urged toward the initial position by the return spring provided in the cylinder, but the present creation is not limited thereto. For example, the operation unit may be returned to the initial position by a suitable pressing member such as a torsion coil spring. (b) In the foregoing embodiment, the hydraulic brake lever is taken as an example to illustrate the creation, but the air pressure is The hydraulic brake lever can also be applied to the present invention. [Schematic description of the drawings] [Fig. 1] A perspective view of the brake lever of the first embodiment of the present invention. [Fig. 2] A plan sectional view of the brake lever in the brake release position. [Fig. 3] This part is a perspective view. [Fig. 4] A plan sectional view of the brake lever in the brake position. [Fig. 5] A side view of a brake lever according to a third embodiment of the second embodiment of the second embodiment. [Fig. 7] FIG. 7 is a view corresponding to FIG. 4 of the brake lever of the third embodiment of the brake lever of the third embodiment. FIG. Driver's Hand 14: Grip
-21 - M423663 20 :刹車桿 22 :本體部 24 :操作桿構件 24a :擺動支撐部 24b :操作桿部 24c :活塞連結部 24d :軸支撐孔 24e :止脫螺栓孔 24f :第2托架部 24g :第3軸安裝孔 26 :汽缸 26a :汽缸部 26b :擺動連結部 26c :容器部 26d :油壓室 26e :螺栓部 26f :彈簧裝設部 26g :軸貫通孔 28 :活塞 30 :套圈部 30a :開口 30b :開縫 3 2 :汽缸裝設部 3 2 a :汽缸收納空間 -22- M423663 32b :第1軸安裝孔 34 :操作桿裝設部 34a :第1托架部 34b :第2軸安裝孔 36 :固定螺栓 40 :第1擺動軸 40a :六角孔 4 0b :公螺紋部 42a :第1軸套 42b :第2軸套 44 :第2擺動軸 44a :止脫溝 46a :第3軸套 46b :第4軸套 4 8 :止動螺栓 50 :第3擺動軸 50a :外側軸部 5 0b :內側軸部 5 0 c :貫通孔 5 0 d :非圓形孔 5 0 e :螺栓孔 50f :外周面 52 :返回彈簧 54 :隔膜 -23- M423663 55 :蓋構件 56 :活塞本體 56a :彈簧架設部 56b :第1密封件裝設溝 56c :第2密封件裝設溝 56d:軸貫通長孔 56e :裝設突起 58 :連結構件 5 8 a ·嵌合部 58b :連結軸部 58c :嵌合凹部 58d :環裝設溝 5 8 e :公螺紋部 5 8 f :六角孔 60 :第1密封構件 60a :唇緣 62 :第2密封構件 62a :唇緣 64 : Ο形環 122 :本體部 1 2 6 :汽缸 126b :擺動連結部 1 26h :外周面 1 2 8 :活塞 -24 M423663 132 :汽缸裝設部 132a :汽缸收納空間 132b :開縫 132c :安裝面 13 2d :螺栓孔 140 :第1擺動軸 142a :第1軸套 142b :第2軸套 156 :活塞本體 170 :螺栓構件 212 :車手把 2 2 0 :刹車桿 222 :本體部 224 :操作桿構件 224a :擺動支撐部 224b :操作桿部 224c :活塞連結部 224d :軸支撐孔 2 2 4 f :開口 224g :第3軸安裝孔 226 :汽缸 226a :汽缸部 226b :擺動連結部 226d :油壓室 M423663 226f:彈簧裝設部 226g :軸貫通孔 228 :活塞 23 0 :固定部 230b :開縫 23 2 :汽缸裝設部 232a:汽缸收納空間 232b :第1軸安裝孔 234 :操作桿裝設部 234a :托架部 234b :第2軸安裝孔 240 :第1擺動軸 244 :第2擺動軸 250 :第3擺動軸 252 :返回彈簧 256 :活塞本體 25 6e :裝設凹部 258 :連結構件 25 8 a :嵌合軸部 25 8 d :環裝設溝 264 : Ο形環 -26-21 - M423663 20 : brake lever 22 : main body portion 24 : operation lever member 24 a : swing support portion 24 b : operation lever portion 24 c : piston coupling portion 24 d : shaft support hole 24 e : retaining bolt hole 24 f : second bracket portion 24g: third shaft mounting hole 26: cylinder 26a: cylinder portion 26b: swing connecting portion 26c: container portion 26d: hydraulic chamber 26e: bolt portion 26f: spring mounting portion 26g: shaft through hole 28: piston 30: ferrule Portion 30a: opening 30b: slit 3 2 : cylinder mounting portion 3 2 a : cylinder housing space -22 - M423663 32b : first shaft mounting hole 34 : operating lever mounting portion 34 a : first bracket portion 34 b : Two-axis mounting hole 36: fixing bolt 40: first swinging shaft 40a: hexagonal hole 4 0b: male threaded portion 42a: first bushing 42b: second bushing 44: second swinging shaft 44a: retaining groove 46a: 3 bushing 46b: 4th bushing 4 8 : Stop bolt 50 : 3rd swinging shaft 50 a : Outer shaft portion 5 0b : Inner shaft portion 5 0 c : Through hole 5 0 d : Non-circular hole 5 0 e : Bolt hole 50f: outer peripheral surface 52: return spring 54: diaphragm -23- M423663 55: cover member 56: piston body 56a: spring mounting portion 56b: first seal mounting groove 56c: second seal mounting groove 56d: Shaft through Hole 56e: mounting protrusion 58: connecting member 5 8 a · fitting portion 58b : connecting shaft portion 58 c : fitting recess portion 58 d : ring mounting groove 5 8 e : male thread portion 5 8 f : hexagon hole 60 : first Sealing member 60a: lip 62: second sealing member 62a: lip 64: Ο-shaped ring 122: main body portion 1 2 6 : cylinder 126b: oscillating connecting portion 1 26h: outer peripheral surface 1 2 8 : piston-24 M423663 132 : Cylinder mounting portion 132a: cylinder housing space 132b: slit 132c: mounting surface 13 2d: bolt hole 140: first swing shaft 142a: first bushing 142b: second bushing 156: piston body 170: bolt member 212: Driver 2 2 0 : brake lever 222 : main body portion 224 : operation lever member 224 a : swing support portion 224 b : operation lever portion 224 c : piston coupling portion 224d : shaft support hole 2 2 4 f : opening 224g : 3rd shaft mounting hole 226: cylinder 226a: cylinder portion 226b: swing connection portion 226d: hydraulic pressure chamber M423663 226f: spring mounting portion 226g: shaft through hole 228: piston 23 0 : fixing portion 230b: slit 23 2 : cylinder mounting portion 232a: Cylinder accommodation space 232b: first shaft attachment hole 234: operation lever attachment portion 234a: bracket portion 234b: second shaft attachment hole 240: first swing shaft 2 44: second swing shaft 250: third swing shaft 252: return spring 256: piston main body 25 6e: installation recess 258: joint member 25 8 a : fitting shaft portion 25 8 d : ring mounting groove 264 : Ο shape Ring-26