經濟部智慧財產局員工消費合作社印製 第87/20457號專利申請案 ' _中文說明書修正頁_居國89年2月呈 五、發明說明（3 ) W4905 以下’參照第1圖至第7圖，說明申請專利範圍第1 至3項所揭不的發明之一實施例。 裝載在速克達型機車〇的動力單元1 ，係由推桿型頭 上閥式4衝程1循環（通稱4循環）單氣筒之水冷式引擎 2 ’和V皮帶式無段變速機3，及齒輪變速機4而成。 並且動力單元1 ，ί系被分割爲左右分割的曲柄軸箱5 ，6 ’和氣缸體7，和缸頭8，及氣缸頭蓋9，在曲柄軸 箱5 ’ 6之前端，使氣缸體7的缸孔20之中心軸線，略 向水平前方地，被重疊氣缸體7，而且在氣缸體7的前方 依次重疊缸頭8及缸頭蓋9，此等曲柄軸箱5，6，氣缸 體7，缸頭8及缸頭蓋9，係互相一體地被結合。 更且，如第1圖所示，在速克達型機車〇的主框架 1 0形成後叉樞軸1 1 ，而在該後叉樞軸1 1經由連桿 • 1 2，和缸頭1 8之前方下部一體的支持托架1 3 ，向上 下自由搖動地被安裝，在前述主框架1 〇之後端向斜後上 方一體地立起的後框架1 4，和自由旋轉地嵌合在後述後 車軸5 9之後車軸軸支部1 5，介裝有右側緩衝器9 0， 並且在前述後框架1 4，和曲柄軸箱6的托架9 1介裝有 左側緩衝器9 2，動力單元1係以支持托架1 3爲中心， 能向上下搖動地安裝在主框架1 〇。 更且同時’左側緩衝器9 2具有通常的緩衝器之構造 ，其上端部備有托架9 3。可是在右側緩衝器9 0，係在 上端有上托架9 4，在外蓋9 5和內蓋9 6被介裝螺旋彈 簧9 7 ’在和內蓋9 6 —體的緩衝下托架9 8螺著有阻尼 本紙張尺度遶用中國國家標準（CNS)A4規格（210 X 297公釐） -6- ------------裝一 · — V,- IT---·1τ---------線 (請先閱讀背面之注意事項再填寫本頁) 經濟部中央標準局貝工消費合作社印装 404905 五、發明説明（1 ) 〔發明所屬之技術領域〕 本申請專利發明，係關於水冷式引擎和傳動機一體化 的小型車輛用動力單元，特別係有關一體地具備散熱器之 小型車輛用動力單元。 〔技術領域〕 裝載在機車等的習知之動力單元，有在特公平 Μ 3-46352號公報所揭示者。 在該動力單元，係氣缸略指向水平前方，在氣缸和曲 柄軸箱的境界部份上方，向上下自由搖動地軸支在車體框 架，散熱器係在傳動機上，使散熱器空氣取入面沿該傳動 機之前後長方向，一體地被安裝。 並且在前述公報，做爲其他實施例，位於比後車輛前 方，使散熱器空氣取入面沿車寬方向地，把散熱器一體地 安裝在傳動機上。 〔發明所要解決之課題〕 在前述公報揭示的動力單元，因引擎之冷却水外套和 散熱器遠離，連接兩者的冷却水通路將變長，冷却水系統 將複雜化，流路阻力會增大，具有冷却水泵的負荷將增大 之缺點。 並且，在前述公報之第1實施例，因散熱器的空氣取 入面係沿行駛方向，故未將行駛風充份有效地利用，散熱 器之冷却性能低。 本紙張尺度適用中固國家標準（CNSJ Α4祝格（210X297公釐） 7^1 * (請先W讀背面之注意ί項再填寫本頁) 訂 -1· ! η 404905 Α7 Β7 五、發明說明（11 〔第1 0圖〕係第9圖的沿X - X線切斷之直斷平面 圖 圖號說明 0 1 2 3 4 5、6 7 8 9 10 4 經濟部智慧財產局員工消費合作社印製 7 8 速克達型機車 動力單元 水冷式引擎 V皮帶式無段變速機 齒輪減速機 曲柄軸箱 · 氣缸體 缸頭 缸頭蓋 主框架 後叉樞軸 連桿 支持托架 後框架 後平軸軸支部 手柄軸 操作手柄 前車輪 後車輪 缸孔 (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -14- A7 B7 404905 五、發明説明（2 ) 而且，在第2實施例，因散熱器的設置處係在高之位 置，即使將冷却風取入口設在其前方的後蓋，也將由乘坐 者之腳被遮住其冷却風取入口，結果也具有無法充份獲得 冷却性能之缺點。 〔爲了解決課題的方法及效果〕 本申請專利的申請專利範圍第.1項之發明，係關於備 有克服前述缺點竹旳水冷式引擎之小型車輛用動力單元的 改良，在水冷式引擎，和在一側支持後車輪的傳動機一體 化之小型車輛用動力單元，其特徵爲該動力單元的前部在 車體安裝成向上下自由搖動，鄰接在該動力單元之搖動安 裝部，把散熱器一體地設在該該動力單元。 本申請專利的申請專利範圔第1項之發明，因如前述 地構成，前述動力單元的搖動部份和散熱器將會接近，結 果，由該動力單元之搖動而對前述散熱器作用的慣力將會 減少，而無損害該散熱器的耐久性之虞。 並且，由於將本發明如申請專利範圍第2項地構成， 缸頭附近的冷却水外套和前述散熱器將會接近，連接兩者 的冷却水通路將變短，冷却水系統將單純化，並且流路阻 力將會減少，冷却水泵之負荷將變小，能夠使冷却水泵小 型化。 而且，由於將本發明如申請專利範圍第3項地構成， 不會被前蓋或乘坐者的腳妨礙，行駛風能被充份地引導至 前述散熱器，而獲得充份高之冷却性能。 本紙張尺度適用中國國家標準（CNS.) A4规格（210X297.公釐） Γ5Ι (請先閲讀背面之注意^項再填寫本頁) 經濟部中央樣準局員工消费合作社印製 n «I —1— il·— i^i n ^^1 Bi-ϋ la— >ϋ ^ I ^^1 1^1 m 1- s n ^^1 ^^1 ^^1 ^^1 經濟部智慧財產局員工消費合作社印製 第87/20457號專利申請案 ' _中文說明書修正頁_居國89年2月呈 五、發明說明（3 ) W4905 以下’參照第1圖至第7圖，說明申請專利範圍第1 至3項所揭不的發明之一實施例。 裝載在速克達型機車〇的動力單元1 ，係由推桿型頭 上閥式4衝程1循環（通稱4循環）單氣筒之水冷式引擎 2 ’和V皮帶式無段變速機3，及齒輪變速機4而成。 並且動力單元1 ，ί系被分割爲左右分割的曲柄軸箱5 ，6 ’和氣缸體7，和缸頭8，及氣缸頭蓋9，在曲柄軸 箱5 ’ 6之前端，使氣缸體7的缸孔20之中心軸線，略 向水平前方地，被重疊氣缸體7，而且在氣缸體7的前方 依次重疊缸頭8及缸頭蓋9，此等曲柄軸箱5，6，氣缸 體7，缸頭8及缸頭蓋9，係互相一體地被結合。 更且，如第1圖所示，在速克達型機車〇的主框架 1 0形成後叉樞軸1 1 ，而在該後叉樞軸1 1經由連桿 • 1 2，和缸頭1 8之前方下部一體的支持托架1 3 ，向上 下自由搖動地被安裝，在前述主框架1 〇之後端向斜後上 方一體地立起的後框架1 4，和自由旋轉地嵌合在後述後 車軸5 9之後車軸軸支部1 5，介裝有右側緩衝器9 0， 並且在前述後框架1 4，和曲柄軸箱6的托架9 1介裝有 左側緩衝器9 2，動力單元1係以支持托架1 3爲中心， 能向上下搖動地安裝在主框架1 〇。 更且同時’左側緩衝器9 2具有通常的緩衝器之構造 ，其上端部備有托架9 3。可是在右側緩衝器9 0，係在 上端有上托架9 4，在外蓋9 5和內蓋9 6被介裝螺旋彈 簧9 7 ’在和內蓋9 6 —體的緩衝下托架9 8螺著有阻尼 本紙張尺度遶用中國國家標準（CNS)A4規格（210 X 297公釐） -6- ------------裝一 · — V,- IT---·1τ---------線 (請先閱讀背面之注意事項再填寫本頁) 404905_b7___ 五、發明説明（4 ) 桿9 9，而在該阻尼桿9 9下部嵌裝停止器橡膠1 0 0， 在前述緩衝下托架9 8的下端之後車輪軸支部1 5被裝嵌 (請先閱讀背面之注意事項再填寫本頁) 軸承101，在該軸承101被嵌合後車軸59，在該後 車軸5 9的右端螺著有螺帽1 0 2，該後車軸5 9經由軸 承1 0 1自由旋轉地軸支在緩衝下托架9 8之下端後車軸 軸支部1 5。然後，成爲在緩衝下托架9 8的上端被形成 小徑圓筒部9 8 a，而在該緩衝下托架9 8之小徑圓筒部 »1 ，將被遊嵌螺旋彈簧9 7的下端。 而且，將在主框架1 0的前端向左右自由旋轉地被軸 支之手柄軸1 6上端一體地被著裝採作手柄1 7，並且在 該手柄軸1 6之下端有前車輪1 8自由旋轉地軸支，而且 在後述後車軸5 9的右端，一體地著裝有後輪1 9。 並且*如第3圖及第4圖所示*把活塞2 1在缸孔 2 0嵌裝成能滑動，而且使曲柄軸2 2能旋轉地軸支在左 右的曲柄軸箱5，6，在該活塞2 1和曲柄軸22，經活 塞銷2 3和曲柄銷2 4，使速桿2 5的兩端能旋轉地樞著 成，活塞2 1往後時把曲柄軸2 2旋轉驅動》 經濟部中央橾準局貝工消费合作社印裝 而且，在缸頭8，形成有連通在紅孔2 0的頂部之燃 燒室2 6的吸氣埠2 7及排氣埠2 8，在該吸氣埠2 7及 排氣埠2 8，分別自由開閉地設有吸氣閥2 9及排氣閥 3 0° 更且，鄰接在吸氣閥2 9及排氣閥3 0的贾端，配置 有搖桿軸3 1，搖桿臂3 2自由搖動地軸支在該搖桿軸 3 1，而該搖桿臂3 2的一端擋接在前述吸氣閥2 9 ’排 本紙張尺度適用中國國家揉準（CNS ) A4规格（210X297公釐） A7 B7 _404905 五、發明説明（5 ) 氣閥3 0之頂端。 並且，以曲柄軸2 2的一半之旋轉速度被旋轉驅動的 凸輪軸3 3，係磁性連結在後述冷却水泵3 6之旋轉軸 3 7 (未圖示），在該凸輪軸3 3被擋接閥升桿3 4 ,在 前述搖桿壁3 2的他端和閥升桿3 4，介裝有推桿3 5， 成爲曲柄軸22旋轉2次時，吸氣閥29，排氣閥30將 以1次的比例被開閉驅動。 而且，前述冷却水泵3 6之未圖示的吐出口，係經由 水冷式引擎_2之冷却水通路（未圖示），連接在燃燒室 26周圍之冷却外套38。 更且，如第5圖所示，在和缸頭8 —體的支持托架 1 3之下方，被分配散熱器3 9的安裝板4 0，散熱器 3 9將由貫通該安裝板4 0螺著在支持托架1 3之螺栓 41，一體地著裝在支持托架13» 並且在將支持托架1 3上下貫通的冷却水通路4 2、 4 3，有左右的冷却水槽4 4、4 5之上端的插入式接頭 6 6，分別隔著油圈6 7被插入，該冷却水通路4 2、 43係連通在左右之冷却水槽44、 45,而該冷却水槽 44、45，係以指向左右水平方向的冷却水導管46被 連接，沿垂直面立起之散熱片4 7，在該冷却水導管4 6 每隔一定間隔著裝有多數片，前述冷却水通路42、 43 的上端，分別經由連通管48、 49連接在冷却水泵36 之吸入口（未圖示）和冷却水外套3 8。 而且散熱器蓋5 0係連接在左方的冷却水槽4 4 ’成 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） * (请先聞讀-背面之注意Ϋ項再填寫本頁) 訂 ! 經濟部中央標準局貝工消費合作社印製 -8- 經濟部中央標準局貝工消费合作社印裝 404905 五、發明説明（6 ) 爲冷却水將由該散熱器蓋5 0注入冷却水槽4 4，更且在 冷却水外套3 8和連通管4 9的連接部，介裝有未圖示之 恆溫器。 並且，如第4圖所示，在曲柄軸2 2的右端設有內裝 離心錘5 1之主動V帶輪5 2，設有軸支在左右曲柄軸箱 5、 6後部的從動軸53,從動V帶輪54,在前述主動 V帶輪5 2，及被動V帶輪54並掛無端V皮帶5 5，而 *1 構成V皮帶式無段變速機3，成爲隨著曲柄軸2 2的旋轉 速度增加，主動V帶輪5 2之捲掛半徑將由離心錘5 1的 離心力而增大，變速率將連續地減少。 更且，在從動軸5 3和從動V帶輪5 4介裝有離心離 合器56，在該從動軸53的左部形成有小齒輪57，該 小齒輪5 7將經由中間變速齒輪5 8咬合在後車軸5 9之 輸出齒輪6 0，而構成齒輪減速機4，當被動V帶輪5 4 被旋輪驅動，而超過所定旋轉速度時，成爲水冷式引擎2 的輸出，將經由V皮帶式無段變速機3及齒輪減速機4， 被傳達至和後車輪5 9 —體之後車輪1 9 · 而且如第4圖所示，在曲柄軸2 2的左端，設有啓動 兼發電裝置61，並且如第1圖所示·在踏板底板62之 下方，配設有燃料槽6 3。 第1圖至第7圖所示的實施例，因如前述地被構成， 雖然速克達型機車0，係和通常的備有V皮帶式無段變速 機之速克達一樣，即使水冷式引擎2啓動，水冷式引擎2 的輸出不會被傳達至後車輪1 9，可是隨著水冷式引擎2 本紙張尺度適用中國國家標準（CNS > A4祝格（210X297公釐） -9 - (請先閲讀背面之注意事項再填寫本頁) iln —11· ^ 經濟部中央標準局貝工消费合作社印装 A7 4Q490S_E_ 五、發明説明（7 ) 被加速，離心離合器5 6將成爲連接狀態，速克達型機車 0將開始前進，水冷式引擎2的旋轉Μ度更增加時，速克 達型機車0之車速也將增大。 並且，水冷式引擎2的啓動時，冷却水外套3 8內之 冷却水溫度爲所需溫度以下時，未圖示的恆溫器將被關閉 ，冷却水外套3 8內之冷却水將幾乎不會流至散熱器3 9 ，可是冷却水外套3 8內的冷却水溫度上升時，前述恆溫 »1 器將會開啓，從冷却水泵3 6的吐出口流出而流入冷却水 外套3 8之冷却水，將被加熱成高溫，經由連通管4 9， 冷却水通路4 3被排出至冷却水槽4 5，在該從冷却水槽 4 5通過冷却水導管4 6流至冷却水槽4 4之間，以接觸 行駛風的散熱片4 7被散熱而冷却，從冷却水槽4 4經冷 却水通路4 2，連通管4 8回到冷却水栗3 6之吸入口， 冷却水能夠連續地循環。 而且，.因散熱器3 9，係在水冷式引擎2的缸頭8之 前部下方，指向前方被配置，流經踏板底板6 2下方的燃 料槽6 3附近之行駛風，不會被速克達型機車〇的後蓋 6 4遮住，而能順利地通過散熱器(§9之散熱片4 7間， 結果散熱器39之冷却性能高。 更且，隨著速克達型機車0的行駛，即使由路面之凹 凸有動力單元1激烈地向上下搖動的情況，也因散熱器 3 9接近動力單元1之搖動中心部的支持托架Γ3，散熱 器3 9將不受太大之往復慣力，結果，散熱器3 9的耐久 性優異，並且對散熱器3 9之行駛風的流動狀態將保持略 本紙張尺度適用中國國家標準（CNS ) Α4規格（210X297公釐） _ (請先閱讀背面之注意事項再填寫本頁) 卜訂 404905_B7_ 五、發明説明（8 ) —定，冷却安定性良好。 而且，後框架1 4的左端，將經由左側緩衝器9 2連 結在動力單元1之曲柄軸箱6的托架91，並且後框架 1 4之右端，因經由右側緩衝器9 0及該內蓋9 6 —體的 緩衝下托架98，及軸承101連結在後車軸59，故動 力單元1將被兩端支持，對動力單元1前方之支持托架 1 3無過大的力會作用。動力單元1能安定地向上下搖動 »， 〇 更且，因在右側緩衝器9 0的內蓋9 6被一體結合緩 衝下托架9 8，並且在該緩衝下托架9 8被一體螺著阻尼 桿9 9，在該緩衝下托架9 8經由軸承1 Ο 1被軸支後車 軸5 9，故將簡化構造，而被小型輕量化，而且也將改善 裝配性，結果，能夠大幅降低成本。 並且同時，因螺旋彈簧9 7的下端，被遊嵌在緩衝下 托架9 8之小徑圓筒部9 8 a，螺旋彈簧9 7，將安定地 被支持在緩衝下托架9 8。 經濟部中央標準局貝工消费合作社印製 (讀先閱讀背面之注意事項再填寫本頁) 雖然在第1圖至第7圖所示的實施例，係使安裝板 4 0直接擋接在支持托架1 3 ,可是也可以如第8圖所示 ，在支持托架1 3和安裝板4 0，介裝比較軟的橡膠6 5 ’把冷却水槽45、46上端之接頭66，經由油圈67 分別插入冷却水通路42、 43,如此地構成時，在冷却 水通路42、43和冷却水槽44、4 5的接合·部之水冷 式引擎2的振動將被緩衝，能大幅緩和散熱器結合部所受 之應力。 J! 本紙張尺度適用中國國家標準（CNS ) A4说格（210X297公嫠） -11 . 經濟部中央標準扃員工消费合作社印製 A7 -404905--- 五、發明説明（9 ) 雖然在第1圖至第8圖所示的實施例。係使用V皮帶 式無段變速機3，可是也可以如第9圖至第1 0圖所示， 代替V皮帶式無段變速機3，而使用齒輪變速機7 0 〇 在第9圖至第1 0圖所示的動力單元1，被圖示將凸 輪軸33和冷却水栗36之轉子孔36a ，磁連結的電磁 聯結器7 1。 並且如第9圖所示，和曲柄軸2 2 —體之輸出齒輪 7 2，將經由未圖示的備有變速離合器之中間齒輪7 3， 連結在齒輪變速機7 0的主軸7 4，該主軸7 4將經由變 速齒輪群7 5，自由切換地連結在副軸1 6，而該副軸 7 6係經由齒輪7 7，被連結在後車軸5 9 » 而且，成爲使移位叉7 8被卡合在主軸7 4及副軸 7 6的變速齒輪群7 5之各齒輪，該移位叉7 8將由移位 桶7 9被切換驅動。 更且，移位桶7 9係經由移位機構8 0，被連接在移 位馬達8 1，成爲將由該移位馬達8 1的間歇性旋轉驅動 ，使移位機構8 0各一段地上移或下移。 並且散熱器82，在上下備有冷却水槽83、84， 該冷却水槽83、 84係以未圖示的冷却水導管連通，而 在該冷却水導管，經上下嵌裝有多數片之散熱片8 5。 因在第9圖和第1 0圖所示的實施例，係如前述地構 成，故能以上移操作或下移操作，把齒輪變速機"70各1 段地上移或下移。 並且在冷却水外套3 8被加熱的冷却水，將從恆溫器 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐) .<|2 - ----------- \---Γ---訂------"·1 (會先閲免背面之注意事項再填寫本頁) 404905 五、發明説明（10) 8 6經連通管4 9進入冷却水槽8 3，在從該冷却水槽 8 3流下未圖示的冷却水導管內之間，由行駛風經散熱片 8 5被冷却後，流入冷却水槽8 4，從連通管4 8被吸入 冷却水泵3 6的吸入口，以冷却水泵3 6被加壓後，再度 回到冷却水外套3 8，能夠循環冷却水系統內》 在本實施例，散熱器8 2因係配置在支持托架1 3的 附近，故不大會受動力單元1的上下搖動之不良影響，而 且散熱器8 2將充份接受從前方的行駛風，冷却性能很高 〇 而且’雖然做爲小型車輛說明速克達型機車，可是本 申請專利發明，也能夠適用於坐鞍型自動3輪車，或野外 行駛用之沙灘車。 〔圖面之簡單說明〕 〔第1圖〕係裝載本申請專利發明的一實施例之動力 單元的速克達之槪略側視圖。 〔第2圖〕係第1圖所示的動力ϋ元之斜視圖。 經濟部中央標準局貝工消費合作社印裝 (請先W讀背面之注意Ϋ項再填寫本頁) 〔第3圖〕係前述動力單元之側視圖。 〔第4圖〕係第3圖的直斷平面圖。 〔第5圖〕係第3圖的矢視正面圖。 〔第6圖〕係第1圖的從後方向前方觀察之背面圖。 〔第7圖〕係第6圖的主要部份擴大直斷面圖。 〔第8圖〕係其他實施例之正面圖。 〔第9圖〕係更其他實施例的側視圖。 本紙張尺度適用中國國家標準（CNS ) Α4规格（210X297.公釐） -13- η 404905 Α7 Β7 五、發明說明（11 〔第1 0圖〕係第9圖的沿X - X線切斷之直斷平面 圖 圖號說明 0 1 2 3 4 5、6 7 8 9 10 4 經濟部智慧財產局員工消費合作社印製 7 8 速克達型機車 動力單元 水冷式引擎 V皮帶式無段變速機 齒輪減速機 曲柄軸箱 · 氣缸體 缸頭 缸頭蓋 主框架 後叉樞軸 連桿 支持托架 後框架 後平軸軸支部 手柄軸 操作手柄 前車輪 後車輪 缸孔 (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -14- 404905 A7 B7 五、發明説明（12) 經濟部中央標準局貝工消费合作杜印製 2 1 活塞 2 2 曲柄軸 2 3 活塞銷 2 4 曲柄銷 2 5 連桿 2 6 燃燒室 2 7 吸氣埠 2 8 排氣埠 2 9 吸氣閥 3 0 排氣閥 3 1 搖桿臂 3 3 凸輪軸 3 4 閥升桿 3 5 推桿 3 6 冷却水泵 3 7 旋轉軸 38 冷却水外套 3 9 散熱器 4 0 安裝板 4 1 螺栓 42、 43 冷却水通路 44、 45 冷却水槽 4 6 冷却水導管 4 7 散熱片 (請先閲讀背面之注意事項再填寫本頁) l·訂Patent Application No. 87/20457 printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs' _Chinese Manual Revised Page_Residence of the country of origin, February, 89. V. Invention Description (3) Below W4905 'Refer to Figures 1 to 7 Describe one embodiment of the invention that is not disclosed in claims 1 to 3 of the scope of patent application. The power unit 1 mounted on the speed locomotive 0 is a valve-type 4-stroke 1-cycle (commonly referred to as 4-cycle) single-cylinder water-cooled engine 2 ′ and a V-belt stepless speed changer 3 and gears. Speed changer 4. And the power unit 1 is divided into left and right divided crankshaft boxes 5, 6 'and the cylinder block 7, and the cylinder head 8, and the cylinder head cover 9, at the front end of the crankshaft box 5'6, so that the cylinder block 7 The central axis of the cylinder bore 20 is slightly horizontally forward, and the cylinder block 7 is overlapped, and the cylinder head 8 and the cylinder head cover 9 are sequentially overlapped in front of the cylinder block 7, and these crankshaft boxes 5, 6, cylinder block 7, cylinder The head 8 and the cylinder head cover 9 are integrated with each other. Furthermore, as shown in FIG. 1, a rear fork pivot 1 1 is formed on the main frame 10 of the speed locomotive 0, and the rear fork pivot 1 1 is connected to the cylinder head 1 via a connecting rod • 1 2 and a cylinder head 1 8 A support bracket 1 3 integrally mounted on the front and lower portions is mounted so as to swing freely upward and downward, and a rear frame 14 integrally erected integrally with the rear end of the main frame 10 rearwardly obliquely rearward and upward is fitted to a later-described rotation frame. Rear axle 5 9 After the rear axle support 15, the right side bumper 90 is interposed, and in the aforementioned rear frame 14 and the bracket 9 of the crankcase 6, the left side bumper 9 2 is interposed, and the power unit 1 is interposed. It is centered on the support bracket 13 and can be mounted on the main frame 10 in a swingable manner. Moreover, the 'left side buffer 92' has a normal buffer structure, and a bracket 93 is provided at the upper end portion. However, the right side bumper 90 is tied to the upper end with an upper bracket 9 4 and the outer cover 9 5 and the inner cover 9 6 are inserted with a coil spring 9 7 ′ under the buffer with the inner cover 9 6. The bracket 9 8 The screw-on damping paper size is in accordance with the Chinese National Standard (CNS) A4 specification (210 X 297 mm) -6- ------------ install one · — V,-IT --- · 1τ --------- line (please read the precautions on the back before filling out this page) Printed by Shelley Consumer Cooperative of Central Standards Bureau of the Ministry of Economic Affairs 404905 V. Description of Invention (1) [Technical Field to which the Invention belongs The invention of this patent relates to a power unit for a small vehicle in which a water-cooled engine and a transmission are integrated, and particularly relates to a power unit for a small vehicle that is integrally provided with a radiator. [Technical Field] A conventional power unit mounted on a locomotive or the like is disclosed in Japanese Patent Publication No. M 3-46352. In this power unit, the cylinder is pointed slightly forward, and above the boundary between the cylinder and the crankshaft, the axle is freely shaken up and down on the body frame, and the radiator is attached to the conveyor to allow the radiator air intake surface. It is installed integrally along the front and back of the conveyor. In the aforementioned publication, as another embodiment, the radiator is integrally mounted on the transmission with the air intake surface of the radiator in the vehicle width direction as the other embodiment. [Problems to be Solved by the Invention] In the power unit disclosed in the aforementioned publication, since the cooling water jacket and the radiator of the engine are far away, the cooling water passage connecting the two will become longer, the cooling water system will be complicated, and the flow path resistance will increase. , Has the disadvantage that the load of the cooling water pump will increase. Furthermore, in the first embodiment of the aforementioned publication, since the air intake surface of the radiator is along the traveling direction, the traveling wind is not fully utilized, and the cooling performance of the radiator is low. This paper size applies to the China National Standard (CNSJ Α4 Zhuge (210X297 mm) 7 ^ 1 * (please read the note on the back before filling this page) Order-1 ·! Η 404905 Α7 Β7 V. Description of the invention (11 [Fig. 10] is the cut-away plan view of Fig. 9 taken along the X-X line. Figure No. 0 1 2 3 4 5, 6 7 8 9 10 4 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 7 8-speed locomotive power unit water-cooled engine V belt-type stepless speed reducer gear reducer crankshaft box · cylinder block cylinder head cylinder head cover main frame rear fork pivot link support bracket rear frame rear flat shaft shaft support Handle shaft operation handle Front wheel rear wheel cylinder hole (Please read the precautions on the back before filling this page) This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) -14- A7 B7 404905 5. Description of the Invention (2) Moreover, in the second embodiment, since the installation position of the radiator is high, even if the cooling air intake opening is provided in the front cover in front of it, the feet of the occupant will be blocked from cooling The wind takes in the inlet, and as a result, the cooling is not fully obtained [Methods and effects in order to solve the problem] The invention in item 1. of the present patent application relates to an improvement of a power unit for a small vehicle provided with a bamboo-punch water-cooled engine that overcomes the aforementioned disadvantages. An engine and a small vehicle power unit integrated with a transmission supporting a rear wheel on one side, characterized in that the front portion of the power unit is mounted on the vehicle body to swing up and down freely, and is adjacent to the swing mounting portion of the power unit The radiator is integrally provided in the power unit. As the invention of the first patent application of the present patent application, the first item of the invention, as described above, the swinging part of the power unit and the radiator will be close, and as a result, the The inertia of the power unit on the radiator will be reduced without jeopardizing the durability of the radiator. In addition, since the present invention is configured as the second item in the scope of patent application, the cooling near the cylinder head is cooled. The water jacket and the aforementioned radiator will be close, the cooling water passage connecting them will be shortened, the cooling water system will be simplistic, and the flow path resistance will be reduced The load of the cooling water pump will be reduced, and the cooling water pump can be miniaturized. Furthermore, since the present invention is structured as described in the third aspect of the patent application, it will not be hindered by the front cover or the feet of the occupant, and the traveling wind energy will be fully Guide to the aforesaid heat sink to obtain sufficient high cooling performance. This paper size applies the Chinese National Standard (CNS.) A4 specification (210X297.mm) Γ5Ι (Please read the note on the back ^ before filling this page) Economy Printed by the Consumers' Cooperatives of the Ministry of Standards and Prospects Bureau «I —1— il · — i ^ in ^^ 1 Bi-ϋ la— > ϋ ^ I ^^ 1 1 ^ 1 m 1- sn ^^ 1 ^^ 1 ^^ 1 ^^ 1 Patent Application No. 87/20457 printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs' __ Chinese Manual Revised Page_Residence of the State of Japan, February, 89. V. Invention Description (3) W4905 or below 'Reference FIG. 1 to FIG. 7 illustrate an embodiment of the invention that is not disclosed in items 1 to 3 of the scope of patent application. The power unit 1 mounted on the speed locomotive 0 is a valve-type 4-stroke 1-cycle (commonly referred to as 4-cycle) single-cylinder water-cooled engine 2 ′ and a V-belt stepless speed changer 3 and gears. Speed changer 4. And the power unit 1 is divided into left and right divided crankshaft boxes 5, 6 'and the cylinder block 7, and the cylinder head 8, and the cylinder head cover 9, at the front end of the crankshaft box 5'6, so that the cylinder block 7 The central axis of the cylinder bore 20 is slightly horizontally forward, and the cylinder block 7 is overlapped, and the cylinder head 8 and the cylinder head cover 9 are sequentially overlapped in front of the cylinder block 7, and these crankshaft boxes 5, 6, cylinder block 7, cylinder The head 8 and the cylinder head cover 9 are integrated with each other. Furthermore, as shown in FIG. 1, a rear fork pivot 1 1 is formed on the main frame 10 of the speed locomotive 0, and the rear fork pivot 1 1 is connected to the cylinder head 1 via a connecting rod • 1 2 and a cylinder head 1 8 A support bracket 1 3 integrally mounted on the front and lower portions is mounted so as to swing freely upward and downward, and a rear frame 14 integrally erected integrally with the rear end of the main frame 10 rearwardly obliquely rearward and upward is fitted to a later-described rotation frame. Rear axle 5 9 After the rear axle support 15, the right side bumper 90 is interposed, and in the aforementioned rear frame 14 and the bracket 9 of the crankcase 6, the left side bumper 9 2 is interposed, and the power unit 1 is interposed. It is centered on the support bracket 13 and can be mounted on the main frame 10 in a swingable manner. Moreover, the 'left side buffer 92' has a normal buffer structure, and a bracket 93 is provided at the upper end portion. However, the right side bumper 90 is tied to the upper end with an upper bracket 9 4 and the outer cover 9 5 and the inner cover 9 6 are inserted with a coil spring 9 7 ′ under the buffer with the inner cover 9 6. The bracket 9 8 The screw-on damping paper size is in accordance with the Chinese National Standard (CNS) A4 specification (210 X 297 mm) -6- ------------ install one · — V,-IT --- · 1τ --------- line (please read the precautions on the back before filling this page) 404905_b7___ V. Description of the invention (4) Rod 9 9 and the stopper rubber is embedded in the lower part of the damping rod 9 9 1 0 0, after the lower end of the aforementioned buffer lower bracket 9 8 the wheel shaft support portion 15 is fitted (please read the precautions on the back before filling this page) bearing 101, where the rear axle 59 is fitted into the bearing 101, A nut 10 2 is screwed to the right end of the rear axle 5 9, and the rear axle 5 9 is pivotally supported on the lower end of the lower bracket 9 8 through the bearing 10 1 to freely rotate. Then, a small-diameter cylindrical portion 9 8 a is formed at the upper end of the bracket 98 under the buffer, and the small-diameter cylindrical portion »1 of the bracket 98 under the buffer is to be inserted into the coil spring 9 7 Lower end. Furthermore, the upper end of the handle shaft 16 supported by the shaft is freely rotated left and right at the front end of the main frame 10, and is integrally dressed as a handle 17, and a front wheel 18 is freely rotated at the lower end of the handle shaft 16. A ground axle is supported, and a rear wheel 19 is integrally mounted on a right end of a rear axle 59 which will be described later. And * as shown in Figs. 3 and 4 * the piston 21 is fitted in the cylinder bore 20 to be able to slide, and the crank shaft 22 is rotatably supported on the left and right crank shaft boxes 5, 6 The piston 21 and the crank shaft 22 are pivotally pivoted at both ends of the speed lever 25 through the piston pin 23 and the crank pin 24, and the piston 21 is rotated to drive the crank shaft 2 2 in the backward direction. Printed by the Central Government Bureau of Standardization, Shellfish Consumer Cooperative, and the cylinder head 8 is formed with an intake port 27 and an exhaust port 28 connected to a combustion chamber 26 at the top of the red hole 20, and the intake port 2 7 and exhaust port 2 8 are provided with an intake valve 29 and an exhaust valve 30 °, which are openable and closable respectively. Furthermore, adjacent to the ends of the intake valve 29 and the exhaust valve 30, a rocker is arranged. The lever shaft 3 1 and the rocker arm 3 2 are freely shaken. The shaft is supported on the rocker shaft 3 1, and one end of the rocker arm 3 2 is blocked by the suction valve 2 9 ′. (CNS) A4 specification (210X297 mm) A7 B7 _404905 V. Description of the invention (5) Top of air valve 30. The camshaft 3 3 which is rotationally driven at half the rotational speed of the crankshaft 22 is magnetically connected to a rotation shaft 3 7 (not shown) of a cooling water pump 36 which will be described later, and the camshaft 3 3 is blocked. The valve lifter 3 4 is located at the other end of the rocker wall 3 2 and the valve lifter 3 4. The pusher 3 5 is interposed. When the crank shaft 22 rotates twice, the suction valve 29 and the exhaust valve 30 will It is driven by opening and closing at a ratio of 1 time. The unillustrated discharge port of the cooling water pump 36 is connected to a cooling jacket 38 around the combustion chamber 26 through a cooling water passage (not shown) of the water-cooled engine_2. Furthermore, as shown in FIG. 5, the mounting plate 4 0 of the radiator 39 is allocated below the support bracket 13 that is integral with the cylinder head 8, and the radiator 39 is passed through the mounting plate 40 screw. The bolts 41 on the support bracket 1 3 are integrally mounted on the support bracket 13 »and the cooling water passages 4 2 and 4 3 penetrating the support bracket 13 up and down, and there are left and right cooling water tanks 4 4 and 4 5 The upper plug-in joints 6 6 are respectively inserted through the oil rings 6 7. The cooling water passages 4 2 and 43 are connected to the left and right cooling water tanks 44 and 45, and the cooling water tanks 44 and 45 are directed to the left and right. The cooling water pipes 46 in the horizontal direction are connected, and the cooling fins 47 standing up along the vertical plane are provided with a plurality of fins at regular intervals. The upper ends of the cooling water passages 42 and 43 communicate with each other. The pipes 48 and 49 are connected to the suction port (not shown) of the cooling water pump 36 and the cooling water jacket 38. And the radiator cover 50 is connected to the left cooling water tank 4 4 'cost paper size applies Chinese National Standard (CNS) A4 specification (210X297 mm) * (Please read first-note on the back before filling this page ) Order! Printed by the Shellfish Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economics-8- Printed by Shellfish Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs 404905 V. Description of the invention (6) The cooling cover will be filled by the radiator cap 50 into the cooling water tank 4 4. Furthermore, a thermostat (not shown) is interposed in the connection portion between the cooling water jacket 38 and the communication pipe 49. As shown in FIG. 4, a driving V-belt 5 2 with a built-in centrifugal hammer 5 1 is provided at the right end of the crank shaft 22, and a driven shaft 53 is provided at the rear of the left and right crank shaft boxes 5 and 6. The driven V-belt 54 is connected to the aforementioned active V-belt 5 2 and the passive V-belt 54 and the endless V-belt 5 5 is connected, and * 1 constitutes a V-belt type stepless speed changer 3 and becomes a follower of the crank shaft 2 As the rotation speed of 2 increases, the winding radius of the active V-belt 5 2 will be increased by the centrifugal force of the centrifugal hammer 51, and the variable rate will be continuously reduced. Further, a centrifugal clutch 56 is interposed between the driven shaft 53 and the driven V-belt 54, and a pinion 57 is formed on the left portion of the driven shaft 53. The pinion 57 passes through the intermediate transmission gear 5. 8 meshes with the output gear 60 of the rear axle 5 9 to form a gear reducer 4. When the passive V pulley 5 4 is driven by the wheel and exceeds a predetermined rotation speed, it becomes the output of the water-cooled engine 2 and passes through V The belt-type stepless speed changer 3 and the gear reducer 4 are transmitted to the rear wheels 5 9. The rear wheels 1 9 are installed on the left end of the crankshaft 22 as shown in FIG. 4. 61, and as shown in FIG. 1, a fuel tank 63 is provided below the pedal bottom plate 62. The embodiment shown in FIGS. 1 to 7 is constructed as described above. Although the speed locomotive 0 is the same as the speed keda equipped with a V-belt stepless transmission, even the water-cooled type Engine 2 starts, the output of water-cooled engine 2 will not be transmitted to the rear wheels 19, but as the water-cooled engine 2 this paper size applies the Chinese national standard (CNS > A4 Zhuge (210X297 mm) -9-( Please read the precautions on the back before filling this page) iln —11 · ^ Printed by the Central Standards Bureau of the Ministry of Economic Affairs and printed by Aigong Consumer Cooperative A7 4Q490S_E_ 5. Description of the invention (7) The centrifugal clutch 5 6 will be connected. Keda locomotive 0 will start to advance, and the speed of the water-cooled engine 2 will increase when the rotation M degree of the water-cooled engine 2 will increase. Also, when the water-cooled engine 2 is started, the cooling water jacket 3 within 8 When the cooling water temperature is below the required temperature, the thermostat (not shown) will be closed, and the cooling water in the cooling water jacket 3 8 will hardly flow to the radiator 3 9, but the cooling in the cooling water jacket 3 8 When the water temperature rises, the aforementioned thermostat »1 will Then, the cooling water flowing from the outlet of the cooling water pump 36 and flowing into the cooling water jacket 38 is heated to a high temperature, and the cooling water passage 4 3 is discharged to the cooling water tank 45 through the communication pipe 49. The cooling water tank 4 5 flows through the cooling water pipe 46 to the cooling water tank 4 4, and the fins 4 7 that contact the driving wind are radiated and cooled, and the cooling water tank 4 4 passes the cooling water passage 4 2 and the communication pipe 4 8 times. The cooling water can be continuously circulated to the suction port of the cooling water pump 36. Furthermore, the radiator 38 is arranged below the front part of the cylinder head 8 of the water-cooled engine 2 and is arranged to point forward, and flows through the pedal floor 6 The driving wind near the fuel tank 6 below 3 is not covered by the rear cover 64 of the Scooter locomotive 0, and can pass through the radiator (§ 7 of the heat sink 4 to 7). As a result, the radiator 39 The cooling performance is high. Moreover, as the speed locomotive 0 travels, even if the power unit 1 shakes up and down fiercely from the unevenness of the road surface, the radiator 39 is approaching the center of the swing of the power unit 1 Support bracket Γ3, the radiator 3 9 will not be subject to too much reciprocating inertia As a result, the radiator 39 is excellent in durability, and the flowing state of the traveling wind of the radiator 39 will be maintained slightly. The paper size applies the Chinese National Standard (CNS) Α4 specification (210X297 mm) _ (Please read the back Please fill in this page again.) Order 404905_B7_ V. Description of the invention (8)-Stable, good cooling stability. Moreover, the left end of the rear frame 1 4 will be connected to the crankshaft box of the power unit 1 via the left buffer 9 2 The bracket 91 of 6 and the right end of the rear frame 14 are connected to the rear axle 59 via the right side buffer 90 and the lower cover 98 of the inner cover 9 and the bearing 101, so the power unit 1 will Supported by both ends, no excessive force will act on the support bracket 1 3 in front of the power unit 1. The power unit 1 can be shaken up and down in a stable manner »Furthermore, because the inner cover 9 6 of the right buffer 90 is integrated with the buffer lower bracket 98, and the bracket 98 is screwed integrally under the buffer The damper lever 9 9 is under the buffer, and the bracket 9 8 is supported by the rear axle 5 9 via the bearing 1 0 1. Therefore, the structure will be simplified, the size and weight will be reduced, and the assemblability will be improved. As a result, the cost can be greatly reduced. . At the same time, the lower end of the coil spring 9 7 is embedded in the small-diameter cylindrical portion 9 8 a of the bracket 9 8 under the buffer, and the coil spring 9 7 is stably supported by the bracket 9 8 under the buffer. Printed by the Central Bureau of Standards, Ministry of Economic Affairs, Shellfish Consumer Cooperative (read the precautions on the back, then fill out this page). Although the embodiments shown in Figures 1 to 7, the mounting plate 40 is directly blocked by the support Bracket 1 3, but as shown in Fig. 8, the support bracket 13 and the mounting plate 40 can be fitted with a relatively soft rubber 6 5 ', and the joint 66 at the upper end of the cooling water tank 45 and 46 can be passed through the oil ring. 67 When the cooling water passages 42 and 43 are respectively inserted in this way, the vibration of the water-cooled engine 2 at the junction of the cooling water passages 42 and 43 and the cooling water tanks 44 and 45 will be buffered, which can greatly reduce the connection of the radiator. The stress on the part. J! This paper size applies the Chinese National Standard (CNS) A4 standard (210X297 gong) -11. Central Standard of the Ministry of Economic Affairs, printed by employee consumer cooperative A7 -404905 --- 5. Description of invention (9) The embodiment shown in Figs. 8 to 8. A V-belt stepless speed changer 3 is used, but as shown in FIGS. 9 to 10, a V-belt stepless speed changer 3 may be used instead of a geared speed changer 7 0 〇 in FIGS. 9 to 10 The power unit 1 shown in FIG. 10 is an electromagnetic coupling 71 that magnetically couples the cam shaft 33 and the rotor hole 36 a of the cooling pump 36 with each other. Further, as shown in FIG. 9, the output gear 72, which is integral with the crank shaft 22, is connected to a main shaft 74 of a gear transmission 70 through an intermediate gear 7 3 equipped with a transmission clutch (not shown). The main shaft 7 4 is freely switchable to the auxiliary shaft 16 via a transmission gear group 7 5, and the auxiliary shaft 7 6 is connected to the rear axle 5 9 via a gear 7 7 »and becomes a shift fork 7 8 The shift forks 7 8 are shifted and driven by the gears of the speed change gear group 75 of the main shaft 74 and the countershaft 76, which are engaged with each other. Furthermore, the shift bucket 79 is connected to the shift motor 81 via the shift mechanism 80, and is driven to be intermittently rotated by the shift motor 81 to move the shift mechanism 80 one step at a time or Move down. In addition, the radiator 82 is provided with cooling water tanks 83 and 84 on the upper and lower sides. The cooling water tanks 83 and 84 communicate with a cooling water duct (not shown), and a plurality of fins 8 are embedded in the cooling water duct. 5. Since the embodiments shown in Figs. 9 and 10 are structured as described above, the gear shifter " 70 can be moved up or down one step at a time by upward or downward operation. And the cooling water heated in the cooling water jacket 38 will apply the Chinese National Standard (CNS) A4 specification (210X297 mm) from the paper size of the thermostat. ≪ | 2----------- -\ --- Γ --- Order ------ " · 1 (will read the precautions on the back of the page before filling out this page) 404905 V. Description of the invention (10) 8 6 Enter through the connecting pipe 4 9 The cooling water tank 8 3 flows between the cooling water duct (not shown) flowing down from the cooling water tank 8 3, is cooled by the traveling wind through the fins 8 5, flows into the cooling water tank 8 4, and is sucked into and cooled from the communication pipe 4 8. The suction port of the water pump 36 is pressurized by the cooling water pump 36, and then returns to the cooling water jacket 38 again, which can circulate in the cooling water system. In this embodiment, the radiator 8 2 is arranged in the support bracket 1 3, it is not affected by the ups and downs of the power unit 1, and the radiator 8 2 will fully accept the driving wind from the front, and the cooling performance is very high. The locomotive, but the invention of this patent, can also be applied to a saddle-type automatic three-wheeled vehicle, or a beach vehicle for outdoor driving. [Brief Description of Drawings] [Fig. 1] is a schematic side view of a speed maker loaded with a power unit according to an embodiment of the present invention. [Fig. 2] It is a perspective view of the power unit shown in Fig. 1. Printed by the Central Laboratories of the Ministry of Economic Affairs, Shellfish Consumer Cooperative (please read the note on the back before filling out this page) [Figure 3] is a side view of the aforementioned power unit. [Fig. 4] It is a straight-cut plan view of Fig. 3. [Fig. 5] Fig. 3 is a sagittal front view of Fig. 3. [Fig. 6] Fig. 1 is a rear view of Fig. 1 as viewed from the rear toward the front. [Fig. 7] is an enlarged sectional view of the main part of Fig. 6. [Fig. 8] A front view of another embodiment. [FIG. 9] A side view of still another embodiment. This paper size applies the Chinese National Standard (CNS) A4 specification (210X297.mm) -13- η 404905 Α7 Β7 V. Description of the invention (11 [Picture 10] is the figure 9 cut along the X-X line Straight-cut plan view drawing number description 0 1 2 3 4 5, 6, 7 8 9 10 4 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 7 8 Speed locomotive power unit water-cooled engine V-belt stepless transmission gear reduction Crankshaft box · Cylinder block Cylinder head Cylinder head cover Main frame Rear fork Pivot link Support bracket Rear frame Rear flat shaft support Handle shaft Operating handle Front wheel Rear wheel cylinder hole (Please read the precautions on the back before filling this Page) This paper size is in accordance with China National Standard (CNS) A4 (210 X 297 mm) -14- 404905 A7 B7 V. Description of the invention (12) Printed by the Central Bureau of Standards of the Ministry of Economics and Consumer Product Cooperation Du 1 2 Piston 2 2 crank shaft 2 3 piston pin 2 4 crank pin 2 5 connecting rod 2 6 combustion chamber 2 7 suction port 2 8 exhaust port 2 9 suction valve 3 0 exhaust valve 3 1 rocker arm 3 3 camshaft 3 4 Valve lifter 3 5 Pusher 3 6 Cooling water pump 3 7 Rotary shaft 38 Cooling water jacket 3 9 Radiator 4 0 Mounting plate 4 1 Bolt 42, 43 Cooling water passage 44, 45 Cooling water tank 4 6 Cooling water duct 4 7 Radiator (Please read the precautions on the back before filling this page) l Order
-I 本紙張尺度適用中國國家梂準（CNS ) A4規格（2丨0X297公釐） -15- _404905_b7_ 五、發明説明（13 ) 48,49 連通管 50 散熱器蓋 5 1 離心錘 5 2 主動V帶輪 5 3 從動軸 5 4 從動V帶輪 5 5 無端V皮帶 56 離心離合器 5 7 小齒輪 58 中間變速齒輪 5 9 後車軸 60 輸出齒輪 61 啓動兼發電裝置 62 踏板底板 6 3 燃料槽 6 4 後蓋 6 5 橡膠 經濟部中央標準局員工消費合作社印製 (請先閲諫背面之注意事項再填寫本頁) 70 齒輪變速機 71 電磁聯結器 7 2 輸出齒輪 7 3 中間齒輪 7 4 主軸 75 變速齒輪群 7 6 副軸 本紙張尺度適用中國國家標準（CNS) A4規格（210X29?公釐） -16- 404905 A7 B7 經濟部中央標準局員工消費合作社印裝 五、發明説明（14 ) 7 7 齒輪 7 8 移位叉 7 9 移位桶 80 移位機構 81 移位馬達 8 2 散熱器 83、 84 冷却水槽 8 5 散熱片 8 6 恆溫器 90 右側緩衝器 9 1 托架 92 左側緩衝器 9 3 托架 9 4 上托架 9 5 外蓋 9 6 內蓋 97 螺旋彈簧 98 緩衝下托架 9 9 阻尼桿 100 停止器橡膠 10 1 軸承 10 2 螺帽 (资先閱先背面之注意事項再填寫本頁 訂 本紙張尺度適用中國國家標準（CNSJ A4規格（210X297公釐） · 17 ·-I This paper size is applicable to China National Standard (CNS) A4 specification (2 丨 0X297 mm) -15- _404905_b7_ V. Description of the invention (13) 48,49 Connecting pipe 50 Radiator cover 5 1 Centrifugal hammer 5 2 Active V Pulley 5 3 Driven shaft 5 4 Driven V-belt 5 5 Endless V-belt 56 Centrifugal clutch 5 7 Pinion 58 Intermediate transmission gear 5 9 Rear axle 60 Output gear 61 Starting and generating unit 62 Pedal floor 6 3 Fuel tank 6 4 Back cover 6 5 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Rubber Economy (please read the precautions on the back before filling out this page) 70 Gear changer 71 Electromagnetic coupling 7 2 Output gear 7 3 Intermediate gear 7 4 Spindle 75 Transmission gear group 7 6 Countershaft The paper size is applicable to Chinese National Standard (CNS) A4 (210X29? Mm) -16- 404905 A7 B7 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs 5. Description of the invention (14) 7 7 Gear 7 8 Shift fork 7 9 Shift bucket 80 Shift mechanism 81 Shift motor 8 2 Radiator 83, 84 Cooling water tank 8 5 Heat sink 8 6 Thermostat 90 Right buffer 9 1 Bracket 92 Left buffer 9 3 Bracket 9 4 upper bracket 9 5 Outer cover 9 6 Inner cover 97 Coil spring 98 Bottom bracket 9 9 Damper rod 100 Stopper rubber 10 1 Bearing 10 2 Nut (please read the precautions on the back first, then fill out this page. The paper size applies to Chinese national standards (CNSJ A4 specifications (210X297 mm) · 17 ·