200415059 (1) 玖、發明說明 [發明所屬之技術領域】 本發明是關於在車體框架所搭載的油箱內，收容安裝 在該油箱的上壁部的燃料泵浦，且以乘車用座墊覆蓋該油 箱的上方的機車，特別是關於機車的燃料系配置構造的改 良。 [先前技術】 φ 以乘車用座墊來覆蓋收容著燃料泵浦的油箱的上方的 機車，例如在日本專利文獻1等是習知的構造。 〔專利文獻1〕 曰本特公平7 - 110630號公報 【發明內容】 〔發明欲解決的課題〕 在將燃料泵浦安裝在油箱的上壁部的構造中，是在油 魯 相的上壁邰上配置燃料泵浦及燃料軟管的連接部，而需要 避免乘車用座墊對連接部的干涉，而在上述傳統的構造中 ’疋將乘車用座墊的高度設定在不會與上述連接部產生干 涉的位® ’而會讓乘車用座墊的高度設定的自由度變小。 本發明逢於;^種情況，其目的要提供一種機車的燃料 系配置構造’可增加乘車用座塾的高度設定的自由度，且 防止乘車用座墊干涉到對燃料泵浦的連接部。 -5- (2) (2)200415059 〔用以解決課題的手段〕 爲了達成上述目的，第1發明，是在搭載於車體框架 的油箱內，收容著安裝在該油箱的上壁部的燃料泵浦，以 乘車用座墊覆蓋該油箱的上方的機車，其特徵爲：將上述 燃料泵浦安裝在設置於上述油箱的上壁部的朝下方凹陷的 泵浦安裝部，以外殼從上方覆蓋該泵浦安裝部。 藉由第1發明的構造，由於安裝著燃料泵浦的泵浦安 裝部，是朝下方凹陷且被設置在油箱的上壁部，所以即使 馨 對燃料泵浦的連接部被配置在泵浦安裝部上，也可防止與 乘車用座墊的干涉，可以增加乘車用座墊的高度設定的自 由度。並且藉由外殼從上方覆蓋泵浦安裝部，所以當要對 油箱進行供油而將乘車用座墊開啓時，可確實地防止誤接 觸到上述連接部而可保護對燃料泵浦的連接部，讓上述連 接部不會露出而可得到優異的外觀。 第2發明，是針對上述第1發明的構造，用來將上述 燃料泵浦插入到油箱內的插入孔是被設置在上述泵浦安裝 · 部，作成從上方關閉該插入孔而設置在燃料泵浦的上端的 蓋板是被安裝在上述泵浦安裝部，是將上述外殼安裝在上 述蓋板，藉由這種構造，則不需要用來將外殼固定在油箱 側的特別構件，而可減少零件的數量。 第3發明，是針對上述第1或第2發明的構造，在遠 離上述燃料泵浦的位置，上述外殼是被安裝在用來支承上 述油箱且設置在車體框架的支架，藉由這種構造，則不需 要用來安裝外殼的專門的零件，可以減少零件數量，並且 >6- (3) (3)200415059 可以堅固地支承外殼。 第4發明，是針對上述第]〜第3其中一項的發明， 在配置於後輪上方的油箱的前方，配置有以上述乘車座墊 所覆蓋的置物箱，在」-抓油# ΰ/Ί $ 孔丄通油相的左右其中一側的前部配置 有上述泵浦安裝部fSi上述燃般石、庙 . 灸口H、燃枓水湳，在上述油箱的左右另 一側的則V而部或在上述置物f 人仕工让直物相的左右另一側的後端部，將 從上述燃料栗浦側延伸出的軟管通過上述油箱的前部及上 述置物相的後邰之間且設置缺口部，上述軟管，是彎曲配鲁 置成在上述置物箱的後方側成爲開放上述左右方向的其中 一側的略U字型。 藉由第4發明的構造，則可將燃料泵浦配置在油箱的 較涂的位置’並且可以順利地配置軟管。也就是說雖然由 於配置在後輪上方導致讓油箱的左右方向中間部變得較淺 ’而錯由將燃料泵浦配置在油箱的左右其中一側，則可將 燃料泵浦配置在油箱的較深的位置，而從燃料泵浦延伸出 的軟管，是通過油箱的左右另一側的前端部或置物箱的左 馨 右另一側的後纟而部的缺口，是配置成彎曲爲略U字型， 即使置物箱位於油箱前方也沒關係，可避免上述軟管彎曲 幅度過大，而使其稍微彎曲，而可以順暢地配置上述軟管 〇 第5發明，是針對上述第1〜第4其中一項的發明， 在上述泵浦安裝部周圍的複數位置，在上述油箱的上壁部 設置可支承上述乘車用座墊的座墊荷重支承位置’藉由這 種構造，即使由於較大負荷的作用讓乘車用座墊下沉’而 (4) (4)200415059 在泵浦安裝部的周圍的複數位置且在油箱的上壁部，可支 承乘車座墊的荷重，所以能抑制乘車用座墊的變形，可以 避免來自於乘車用座墊側的荷重作用到外殼。 【實施方式】 以下是根據附圖所示的本發明的實施例來說明本發明 的實施方式。 第1圖〜第1 8圖是顯示本發明的第一實施方式，第 φ 1圖是機車的全體側面圖，第2圖是在將車體外殼卸下的 狀態的機車的前後方向中央部的立體圖，第3圖是引擎與 進氣系統的側面圖，第4圖是第3圖的4 一 4線放大剖面 圖，第5圖是第3圖的5端視放大圖，第6圖是第5圖的 6 — 6線剖面圖，第7圖是從第3圖的7端視方向來看的 空氣灑淸器的背面圖，第8圖是第7圖的8 - 8線剖面圖 ，第9圖是第3圖的7端視圖，第1 0圖是進氣管及燃料 噴射閥的平面圖，第1 1圖是第1 0圖的1 1 一 1 1線剖面圖. ，第1 2圖是機車的後部縱剖面圖，第1 3圖是第1 2圖的 1 3 — 1 3線剖面圖，第1 4圖是第1 3圖的1 4 一 1. 4線剖面圖 ，第1 5圖是油箱、燃料泵浦、以及外殼的分解立體圖， 第1 6圖是第1 3圖的1 6 — 1 6線放大剖面圖，第1 7圖是第 16圖的17— 17線剖面圖，第18圖是第13圖的18 — 18 線放大剖面圖。 首先在第1圖中，該機車的車體框架2 0，是具備有 :可轉向地支承前叉2 4的頭管2 1、從該頭管2 ]朝後下 -8 - (5) (5)200415059 方延伸的主框架22、以及連接設置於主框架22的後部且 朝後上方延伸的左右的一對後框架2 3......，在上述前叉 24的下端軸支承著前輪WF，在前叉2 4的上部是連結著 桿狀的轉向桿2 5 ’在前叉2 4，是支承著用來覆蓋前輪W F 的上方的前擋泥板2 6。 合倂參照第2圖及第3圖，主框架2 2，是由橫剖面 四角形的方管所構成，在該主框架2 2的中間部兩側面是 分別固定安裝著懸掛板2 7......，在主框架2 2的後部兩側 鲁 面是固定安裝著樞軸板2 8。 在主框架2 2的下方，是配置著例如將氣缸軸線稍微 作在前上方的引擎E，該引擎E，是以上述懸掛板27...... 及樞軸板2 8所支承而被懸架在車體框架2 0。 在上述樞軸板2 8，是可上下擺動地支承著後叉2 9的 前端部，在後叉2 9的後端軸支承著後輪WR。而在車體 框架2 0的後框架2 3……及後叉2 9之間設置有後避震單 元 3 0。 · 上述引擎E，是與變速器Μ —起構成動力單元p，變 速器Μ的輸出會經由鏈條3 1而被傳達到後輪WR。 在引擎Ε的上方，是配置有：節流閥主體3 2、以及 較該節流閥主體3 2更前方的空氣濾淸器3 3，在後輪w R 的上方，配置有油箱34A，配置在該油箱34A的前方的置 物箱3 5 A以及上述油箱3 4 a的上方，是可用例如雙人乘 坐型的乘車用座墊3 6可開閉地加以覆蓋。 在車體框架2 0 ,是安裝用來覆蓋：該車體框架2 〇 ' (6) (6)200415059 上述引擎E的局邰、節流閥主體3 2、空氣濾淸器3 3、油 箱3 4 A、以及置物箱3 5 A之合成樹脂製的車體外殼3 8， 該車體外殼3 8 ’是以：配置在主框架22的左右兩側的前 側外殼39.......從前方覆蓋駕駛者的腳部且連接於兩前 側外殼39......的前部的腿部護罩4 0 .·····、從前方覆蓋頭 管2 1且連接於兩腿部護罩4 0......的前頂外殼4 1、從後方 側覆蓋頭管2 1並且使上方復盖主框架2 2而連接於前頂外 殼4 1的主框架頂外殻4 2、連接於上述兩前側外殼3 9...... 的下部的上外殼4 3 .......以及從兩側覆蓋油箱3 4 A及置 物箱3 5 A的後側外殻4 4所構成。 上述乘車用座墊36，爲了要可進行對置物箱35a的 物品的收谷及取出’以及對油箱3 4 A進行供油，是作成 可開閉的且配置在後側外殼44的上部，覆蓋後輪WR的 後部上方的後搶泥板4 5是被連接設置在後側外殼4 4。 在第4圖中，節流閥主體32，是以下述的方式所構 成，用來調節供給到引擎E的空氣纛的蝶型的節流閥46 是可轉動地被支承在主體部47’並且在連結於節流閥46 且配置在主體部4 7的側邊的節流閥鼓4 8則捲繞連結著節 流閥鋼索4 9。 主體部47 ’具有朝機車的前後方向延伸的進氣通道 5〇 ’配置在進氣通道50的中間部的節流閥46，是橫切過 進氣通道50且被固定在可轉動地支承於主體部4?的閥軸 5 1。節流閥鼓48，是在朝向機車的行進方向前方的狀態 被配置在主體部47的左側，該節流閥鼓48是被固定在上 -10 - (7) (7)200415059 述閥軸5 1的其中一端。並且在節流閥鼓4 8及主體部4 7 之間’是設置有將上述節流閥4 6朝向關閉側彈壓的回復 彈簧5 2，機車的駕駛者藉由抵抗上述回復彈簧5 2的彈力 而將上述節流閥鋼索進行牽引操作，來將節流閥4 6朝向 開啓側轉動驅動。 在上述主體部4 7，在與上述節流閥鼓4 8相反側的側 面也就是右側面，安裝有用來收容控制單元5 3的殼體5 5 。該殼體5 5，是由：安裝在主體部4 7的殻體主體5 6、以 肇 及用來密閉該殼體主體5 6的開口部的蓋板5 7所構成，上 述控制單元5 3，在挾持於殼體主體5 6及蓋板5 7之間的 電路基板5 4上構成了沒有圖示的電路基板。 在上述電路基板5 4，是連接了用來檢測節流閥4 6的 開度的節流閥感應器5 8。該節流閥感應器5 8，是由：可 旋轉地鬆動嵌合在殼體主體5 6的旋轉器5 9、從該旋轉器 5 9朝向電路基板5 4側突出的導電刷6 0、6 0、以及作成與 導電刷6 0、6 0滑動接合而被印製在電路基板5 4的電阻體 Φ 6 1所構成，旋轉器5 9，是不能相對旋轉且不會搖晃地被 嵌合在閥軸5 ]的另一端。而旋轉器5 9，是與閥軸5 1在 同軸上，貫穿電路基板5 4而可自由旋轉地被支承在突出 設置於蓋板5 7的支軸62。藉由該節流閥感應器5 8，節流 閥4 6的開度會當成電阻體6 1的兩端間電壓而在上述控制 單元5 3側被檢測出。 在較節流閥4 6的更上流側的主體部4 7，是設置有開 口於進氣通道5 0的穿孔6 3，貫穿該穿孔6 3而使前端封 -11 - (8) (8)200415059 閉部面對於進氣通道5 0的薄壁的有底圓筒狀的檢測筒64 ，是一體地被設置在殼體主體5 6。 以：緊貼在上述檢測筒64的前端封閉部內面的熱敏 電阻65、以及在檢測筒64內從上述熱敏電阻65延伸出 來被連接到電路基板54的端子66，構成了進氣溫度感應 器6 7，控制單元5 3，會因應伴隨著進氣溫度的變化而熱 敏電阻 6 5的電阻値的變化而可檢測出電壓變化。並且在 上述檢測筒6 4內在收容好進氣溫度感應器6 7之後，會充 鲁 塡入由合成樹脂所構成的封裝劑6 8。 由於在安裝於節流閥主體4 7的控制單元5 3的電路基 板5 4連接著節流閥感應器5 8及進氣溫度感應器6 7，所 以可以將用來把節流閥感應器5 8及進氣溫度感應器6 7連 接在控制單元5 3的配線作得非常短。 上述殼體5 5的上部，是跨越主體部4 7的上部而延伸 設置到節流閥鼓4 8側，與節流閥鼓4 8開口在同一側的耦 合器69是一體形成在上述殼體55的殻體主體56。 # 在第3圖，空氣濾淸器3 3所具備的合成樹脂製的濾 淸器盒體7 〇，是以被支承在主框架2 2的碗狀盒體主體7 1 、與朝向該盒體主體7 1開口的碗狀的外殼72來將過濾單 元7 3挾持在7 1、7 2的周緣部之間且相互結合的構造，濾 淸器盒體7 〇內，是被區劃成：外殼72側的未淨化室74 、與在盒體主體7 1側的淨化室7 5。 在濾淸器盒體7 0的盒體主體7 ]，是固定連接著用來 將來自於空氣濾淸器3 3的淨化空氣導入到節流閥主體3 2 -12 - (9) (9)200415059 的連接管7 6，該連接管7 6的上流端是伸入到淨化室7 5 內，在該連接管7 6的下流端部，是嵌合著一體設置於節 流閥主體3 2的主體部4 7的上流側連接筒4 7 a (參照第4 圖）。並且用來固定維持連接管7 6對節流閥主體3 2的連 接狀態的固定用帶7 7是被捲繞在連接管7 6的下流端部， 是藉由螺栓構件7 8來鎖裝住固定用帶7 7，而可固定維持 連接管76對節流閥主體32的連接狀態。 合倂參照第5圖〜第8圖，在空氣濾淸器3 3的濾淸 馨 器盒體70的盒體主體71的下部，是藉由一體成型的方式 設置有遮蔽板7 9，該遮蔽板7 9是從前方覆蓋著配置在空 氣濾淸器3 3的斜後下方的節流閥主體3 2中的至少節流閥 鼓4 8，在上述節流閥主體3 2，由於殼體5 5所具備的耦合 器6 9也被配置在節流閥鼓4 8側，以上述遮蔽板7 9也從 前方覆蓋了耦合器69。 在對應於上述固定用帶7 7的位置的上述遮蔽板7 9， 例如設置有圓形的操作用開口部8 0，在遮蔽板7 9，是安 肇 裝有可用來開閉操作用開口部8 0且配置於遮蔽板7 9的前 面側的蓋子8 1。 在偏離上述操作用開口部8 0的位置，在遮蔽板7 9設 置有支承孔8 2，在由橡膠所構成的蓋子8 1，插通於上述 支承孔82的支軸83，是一體地突出設置爲在對支承孔82 進行插通時，其前端側直徑可縮小，在支軸8 3的前端是 一體地設置有在支承孔82的周圍彈性地卡合於遮蔽板79 的背面的複數的卡合爪部S 3 a ·.。也就是說蓋子8 1，是 -13- (10) (10)200415059 在：如第5圖所示的實線所示用來封閉操作用開口部8 0 的位置、與如第5圖的虛線所示將操作用開口部8 〇開放 的位置之間，可在上述支承孔8 2的軸線周圍轉動地被安 裝在遮蔽板7 9。 在蓋子 8 1，是一體地突出設置有在圓周方向分割爲 複數的嵌合筒8 4，該嵌合筒8 4是作成在操作用開口部8 0 的封閉狀態彈性地嵌合於操作用開口部8 0內，設置在該 嵌合筒8 4的前端的複數的卡合爪部84a……是在操作用 馨 開口部8 0的周圍彈性地卡合於遮蔽板7 9的背面，以蓋子 8 1來維持操作用開口部8 0的封閉狀態。 在引擎E的對應於汽缸頭外殻8 7的部分的上述遮蔽 板7 9的下端，是設置有：當將汽缸頭外殻8 7卸下來進行 引擎E的閥門裝置的推桿調整時，用來將扳手等的工具 8 6插入到汽缸頭外殼8 7的缺口 7 9 a。 在該實施例中從左側邊覆蓋節流閥主體3 2的節流閥 鼓4 8的合成樹脂製的節流閥鼓護罩1 6 1，是被安裝在上 鲁 述空氣濾淸器3 3。也就是說，在空氣濾淸器3 3的濾淸器 盒體7 0的盒體主體7 1的背面左側是一體地設置有以螺栓 構件1 62來鎖裝上述節流閥鼓護罩]6 1的上部的安裝轂部 7 1 a，在上述遮蔽板7 9的左側下部，是設置有用來與上述 節流閥鼓護罩1 6 1的下部所設置的略L字型的卡合爪部 ]6 ] a卡合的矩形的卡合孔部]6 3。 而藉由將上述卡合爪部161a卡合在卡合孔163，且 將其下部抵接在上述遮蔽板79的背面的節流閥鼓護罩 -14- (11) (11)200415059 1 6 1的上部，以螺栓構件]6 2鎖裝在上述安裝轂部7 1 a， 將節流閥鼓護罩]6 ]安裝在空氣濾淸器3 3。 在引擎E的汽缸頭8 8的下部，是連接著接續於汽缸 頭8 8的排氣口（沒有圖示）的排氣管1 64，用來將新鮮 的二次空氣供給到從上述排氣口流到排氣管]6 4的排出氣 體中的管路1 6 5的下流端是被連接到汽缸頭外殼8 7，該 管路1 6 5的上流端是被連接到引擎E所支承的二次空氣控 制閥1 6 6。二次空氣控制閥]6 6是被連接到主框架2 2所 支承的過濾器167。 上述過濾器1 6 7，是連接著從該過濾器1 6 7沿著主框 架2 2朝前方延伸的空氣供給管1 6 8的下流端，該空氣供 給管1 6 8的上流端是延伸到空氣濾淸器3 3的上方，在車 體外殼3 8內開放到空氣中。 並且在空氣濾淸器3 3的濾淸器盒體 7 0的盒體主體 7 1的背面上部，是設置有用來使上述空氣供給管]6 8的 靠近上流端的部分嵌合的嵌合溝槽1 6 9，並且一體地突出 設置有從上方抵接、卡合於該嵌合溝槽1 69所嵌合的部分 的空氣供給管1 6 8的卡合銷栓1 7 0。也就是說空氣供給管 168的靠近上流端的部分，是藉由嵌合於嵌合溝槽169並 且藉由卡合銷栓I 7 〇從上方的抵接、卡合，而被保持在盒 體主體7 1的背面上部。因此不需要將用來保持空氣供給 管〗6 8的專用的箍位器安裝在主框架2 2。 節流閥主體3 2的主體部4 7 —體地具備的下流側連接 筒4 7 b (參照第4圖），是被連接在進氣管8 9的上流端 -15- 200415059 Π2) ’而進氣管8 9的下流端則是連接在引擎Ε的汽缸頭8 8的 上部。 合併參照第9圖〜第]1圖，進氣管8 9，是將節流閥 主體3 2、及在該節流閥主體3 2的斜後下方的汽缸頭88 連結在〜起且作成彎曲爲略C字型，該進氣管8 9，是以 燒接在其表面由橡膠所構成的被覆材料9 0所覆蓋，藉由 將上述_流閥主體3 2的下流側連接筒4 7 b緊密地嵌合於 一體地設置在該被覆材料9 0的連接筒部9 0 a，來將節流⑩ 閥主體3 2連接在進氣管8 9。 在進氣管8 9，是安裝有用來將燃料噴射到汽缸頭8 8 內的燃料噴射閥9 1，該燃料噴射閥9 1的開閉作動，是藉 由被收容固定在上述節流閥主體3 2的主體部4 7所安裝的 殼體5 5內的控制單元5 3所控制的。 在進氣管8 9是設置有朝向汽缸頭8 8側開口的安裝孔 9 2 ’是作成將前端面對於進氣管8 9內且將燃料噴射閥9] 的前端部氣密性地嵌合於安裝孔92。燃料噴射閥9 1的後 鲁 端部是液密性地被嵌合在蓋子93，該棻子93被鎖裝在進 氣官8 9。也就是說，燃料噴射閥9 1，是作成被夾在進氣 管89及蓋子93之間而被安裝在進氣管89。 在上述盖子9 3 ’是設置有使其下流端連通到上述燃 料噴射閥91的後端部內的燃料供給通路94，連通到該燃 料供給通路94的上流端的入口側連接管95是被凸緣連結 到蓋子9 3。 在上述蓋子93，是設置有從上述燃料供給通路94的 - 16 - (13) (13)200415059 途中分歧的回流通路9 6，在該回流通路9 6連接著壓力調 整閥9 7。 該壓力調整閥9 7的閥殼體9 8，在鄰接於上述燃料噴 射閥9 1的位置是配置成與該燃料噴射閥9 1平行，閥殼體 9 S的上端部，是被安裝在蓋子9 3，且是使液密性地連通 到上述回流通路9 6的連接管9 9中介在閥殼體9 8的上端 部與蓋子9 3之間。也就是說壓力調整閥9 7，是作成不會 從蓋子93朝側邊突出，且是配置成從蓋子93朝下方延伸 c 在該閥殼體9 8的下部，是結合有用來將膜片1 〇 〇的 周緣部挾持在閥殼體9 8之間的外殼1 ，在閥殼體9 8及 膜片1 0 0之間，形成有連通到上述回流通路9 6的閥室 1 0 2，在膜片1 〇 〇及外殼1 〇 1間形成了彈簧室} 〇 3。 在閥殼體9 8，是一體地設置有在凸緣結合於蓋子9·3 的入口連接管9 5的下方且朝向與該入口連接管9 5相同側 延伸的回流側連接管部1 〇4，連通於該回流側連接管部 1 0 4的圓筒狀的閥座構件1 〇 5，是面對於閥室1 〇 2的中央 部且被嵌合固定使其一部分突出於膜片1 〇 〇側。而在膜片 1 0 0的中央部是保持著可頂抵於上述閥座構件丨〇 5的閥室 1 0 2側的端部且可稍微搖動的閥體1 〇 6，在彈簧室1 〇 3， 是收容有在外殻1 0 1及膜片】〇 〇之間壓縮設置的彈簧1 0 7 ，用來發出fe膜片1 0 0朝向上述閥室1 〇 2側撓曲的彈力。 在這種壓力調整閥9 7，如果用來將膜片]〇 〇朝向彈 簧室]0 3側舞壓的閥室]〇 2側的液壓力，超過將膜片]0 0 -17 - (14) (14)200415059 朝向閥室1 〇2側彈壓的彈簧室]〇3側的彈力的話，膜片 1 0 0會朝向彈簧室1 0 3側撓曲而閥體]〇 6會從閥座構件 1 0 5分離’經由回流通路1 0 6而連通到閥室1 〇 2的燃料供 給通路9 4的液壓也就是對燃料噴射閥9 1的燃料供給壓力 ，會被調整成不超過設定壓力。 壓力調整閥9 7，由於如上述是被配置在與燃料噴射 閥9 1鄰接的位置，所以可以縮短連結於燃料噴射閥9 1及 壓力調整閥9 7之間的燃料供給通路9 4的長度，而可防止 肇 流通於該燃料供給通路94的燃料的溫度變得很高。 在第12圖〜第14圖，油箱34A，是將下部油箱半體 1 1 〇及上部油箱半體1 1 1相互結合所構成的構造，在兩油 相半體1 1 0、1 1 1的結合部整個外周，是一體地形成了朝 外側伸出的鳄部1 1 2。該油箱3 4 A，是被支承在車體框架 20的兩後框架23......，在後框架23......，是設置有：用 來支承上述油箱3 4 A的前部的支架1] 3.......以及用來支 承上述油箱3 4 A的後部的支承轂部Η 4……。而被載置於 鲁 上述支架 1] 3......上的上述鍔部 1 ] 2，是藉由螺栓1 1 5… …及焊接螺母116......而被鎖裝在支架1 1 3……，被載置 於支承轂部1 1 4 .·····上的上述鍔部1 1 2，是藉由螺栓1 1 7 ......被鎖裝在支承轂部〗1 4......。 油箱3 4 A是配置在後輪WR的上方，爲了避免後輪 WR的干涉，油箱34A的底部也就是下部油箱半體1 ] 〇的 底部，其左右方向中央部是朝上方膨脹形成。也就是說， 油箱3 4 A ,其左右方向兩側部3 4 L、3 4 R是形成爲較中央 -18- (15) (15)200415059 部3 4 C更深。 σ倂參照桌1 5圖，在油箱3 4 A內，收容著燃料栗浦 1 1 8，該燃料泵浦n 8是被安裝在油箱34 A的上壁部也就 是上部油箱半體]1 1。 在油箱3 4 A的左右其中一側（在該實施例中是左側 部3 4 L )的上壁前部，是設置有朝下方凹陷且平坦的泵浦 安裝部Π 9，在油箱3 4 A的左右另一側（在該實施例中是 右側部3 4 R )的上壁前部是設置有朝前下方傾斜的軟管配 馨 置部1 2 0。 在上述泵浦安裝部1 1 9，是設置有用來將燃料泵浦 1 1 8插入到油箱3 4 A內的例如橢圓狀的插入孔1 2 1。也就 是說燃料泵浦1 1 8，是配置在油箱3 4 A的左右其中一側（ 在該實施例中是左側部3 4 L )。 在燃料泵浦1 1 8的下部是連接著沒有圖示的過濾器， 用來覆蓋該過濾器的過濾器室1 2 2，是作成在該過濾器室 1 2 2內保持預定的液面高度而被支承在燃料泵浦1 1 8的下 φ 部，用來檢測油箱3 4 A內的燃料液面的浮標1 2 3，是被支 承在燃料泵浦1 1 8。 在上述泵浦安裝部1 1 9的上面部，是焊接著包圍上述 插入孔12 1而形成爲橢圓狀的安裝板124。該安裝板124 ，是在圓周方向交互連接形成：焊接於泵浦安裝部1 1 9的 複數個例如6個低位部1 24 a.......以及隆起成梯形的複 數個例如6個高位部1 2 4 b......，各低位部]2 4 a......是分 別被焊接在泵浦安裝部Π 9的上面部。 -19 - (16) (16)200415059 合倂參照第1 6圖及第1 7圖，在上述各高位部1 2 4 b ......的下面部，是焊接著從高位部1 2#……朝上方突出 的螺栓125...... ’是作成從上方封住上述插入孔]2 1，而 將上述各螺栓]2 5......插穿到設置在燃料泵浦]]8的上端 的橢圓形平板狀的蓋板1 2 6的外周部，藉由將螺合於螺栓 125….··的螺母127......鎖緊，來將蓋板126也就是燃料 泵浦1 1 8安裝在泵浦安裝部〗丨9。 並且在泵浦安裝部1 1 9與上述蓋板1 2 6之間，是中介 春 安裝有橡膠製的墊圈128，該墊圈128，是具有用來分別 配置上述女裝板1 2 4的高位部1 2 4 b......的開口部1 2 9...... 而形成爲橢圓狀，藉由將螺合於上述各螺栓125……的螺 母127......鎖緊，則墊圈128會被夾壓在安裝板124的低 位部1 2 4 a......及蓋板1 2 6之間，並且以安裝板丨2 4的內 外’被夾壓在泵浦安裝部1 1 9及上述蓋扳！ 26之間。 在上述燃料泵浦1 1 8的上端是連接著彎曲爲略l字型 的吐出管1 3 0，燃料泵浦1丨8會從吐出管丨3 〇將燃料排出 鲁 。而在上述蓋板1 2 6，是固定安裝著液密性地貫穿於該蓋 板1 2 6並且在燃料泵浦1 1 8的側邊延伸到油箱3 4 a的下 部的回流管1 3 1，在蓋板1 2 6的上方，回流管丨3丨，是彎 曲成與上述吐出管1 3 0同樣的略L字型。 在蓋板1 2 6的上方，上述吐出管丨3 〇及回流管丨3 1， 是朝向右斜前方平行配置，在吐出管1 3 0，是連接著燃料 車火管]3 2的上流端’在回流管]3 1，是連接著回流軟管 】33的下流端’該回流軟管]33的上流端是連接在上述壓 -20- (17) (17)200415059 力調整閥97的回流側連接管部1 04。 在沿著上述吐出管1 3 0及回流管1 3 ]的指向方向的油 箱3 4 A的前端，也就是在左側前部配置著燃料泵浦118 的油箱34A的右側前端的鍔部1 1 2，設置有缺口 1 35，該 缺口 1 3 5形成有讓燃料軟管1 3 2及回流軟管1 3 3通過鍔部 1 12與配置在油箱34A前方的置物箱35A之間的空間，燃 料軟管1 3 2及回流軟管1 3 3，會從吐出管1 3 0及回流管 1 3 1經由軟管配置部1 2 0上而從上述缺口 1 3 5朝下方延伸 ，並且在置物箱3 5 A的後方彎曲成朝向該置物箱3 5 A的 左側延伸。也就是說連接於吐出管1 3 0及回流管1 3 1的燃 料軟管1 3 2及回流軟管1 3 3，是在置物箱3 5 A後方彎曲配 置成朝左側打開的略U字型。 在置物箱 3 5 A的左 官1 3 3是倂行朝前方延伸，而燃料軟管】3 2的下流端，是 被連接在咼壓過濾器1 3 6，該高壓過濾器丨3 6是在置物箱 35八的前部左側以支承構件134被支承在其中一邊的後框 架23的前部，上流端被連接在高壓過濾器丨36的燃料軟 =3 7，疋被連接到用來將燃料供給到燃料噴射閥9 1的 蓋子^3的入口側連接管95。並且上述高壓過濾器136, :在藉：將主框架頂…2卸下而能夠容易進行維修的 垃置，藉由上述支承構件134被支承在後框架？3。 燃料軟管⑴及回賴]33,是連接在蓋子”及 ^力δ周整_ 9 7，來自於燃料泵浦】〗2r 到 Π8的燃料是往復循環 ’射閥m的附近的壓力調繫閥97，即使將引擎ε -21 . (18) (18)200415059 配置在燃料軟管1 3 2與回流軟管1 3 3的下方，也可防止燃 料的溫度上升。 上述泵浦安裝部1 ] 9及軟管配置部1 2 0，是以用來覆 蓋燃料泵浦1 1 8的上端、燃料軟管1 3 2、及回流軟管]3 3 的外殼1 3 8從上方被覆蓋著，該外殼1 3 8，是被鎖裝在固 疋上述燃料栗浦1 1 8的蓋板1 2 6的一對支承構件]3 9、 1 j 9。也就是說’外殼1 3 8 ’是經由支承構件1 3 9、1 3 9而 被安裝在蓋板1 2 6。 0 支承構件1 3 9、1 3 9，是隔著油箱3 4 Α的插入孔1 1 9 相互配置在相反側，而且是藉由用來將燃料泵浦丨〗8的蓋 板1 2 6鎖裝在安裝板丨2 4的六組螺栓1 2 5……及螺母1 2 7 ......中的各一對兩組的螺栓1 2 5......及螺母1 2 7......而被 鎖裝在蓋板126，是形成爲從蓋板126朝上方隆起。 並且在各支承構件 1 3 9、〗3 9的上部內面，固定著焊 接螺母1 4 0、1 4 0 ’外殼1 3 8是被載置於支承構件1 3 9、 1 3 9上，插穿外殻〗3 8及支承構件i 3 9、〗3 9的螺栓構件 馨 1 4 1、1 4 1是被螺合在焊接螺母丨4 〇、1 4 0。 在遠離燃料泵浦11 8的位置也就是外殼1 3 8的右端部 ’是作成支承油箱3 4 A的右側前部，且是被支承在右側 後框架2 3所固定的支架1 1 3，如第1 8圖所示，是藉由螺 栓〗1 5及焊接螺母1 1 6，與油箱3 4 A的右側前部的鍔部 1 1 2，被鎖裝在支架1 1 3。 置物箱3 5 A的下部，如第1 2圖所示，是經由一對安 裝構件]4 3......而被支承在兩後框架2 3......的前部間所設 -22- (19) (19)200415059 置的支承板]4 2上，置物箱3 5 A的後部的左右上端部， 如第18圖所示，是經由安裝構件M4……被支承在支架 1 1 3 ···…的前部。 在一體地設置於置物箱3 5 A的後部的左右上端的支 承鍔部3 5 a......及支架U 3……的前部之間是分別中介安 裝著安裝構件1 4 4......，在支承鍔部3 5 a.......抵接於該 支承f亏部3 5 a的上面部的合成樹脂製的墊片1 4 9......、以 及在安裝構件1 4 4......，是插穿著金屬製圓筒狀的軸環 肇 M5···…，在上述墊片M9......及軸環145的上端是抵接 著金屬製的墊片148......。具有卡合於墊片148的卡止頭 部1 4 7 a的螺栓1 4 7，是插穿於墊片i 4 8......及軸環1 4 5… …，焊接螺母1 4 6......是被固定在支架113......的前部下 面’耢由將螺合於焊接螺母1 4 6......的上述螺栓1 4 7...... 鎖緊，則讓置物箱3 5 A的後部左右上端被支承在支架〗} 3 乘車用座墊3 6的前端，是經由鉸鏈〗5 〇而可開閉地 φ 被支承在置物箱3 5 Α的前端中央上部，當將乘車用座墊 3 6關閉時用來支承該乘車用座墊3 6的後部的支承板I 5 1 是設置在兩後框架2 3......的後部間，固定於乘車用座墊 3 6的底板3 6 a的下面部的一對彈性材料1 5 3……是抵接於 支承板1 5 1。在支承板1 5 1，是安裝著扶手桿i 5 2的兩端 〇 當在關閉狀態施加於乘車用座墊3 6的荷重較小時，200415059 (1) 发明 Description of the invention [Technical field to which the invention belongs] The present invention relates to a fuel tank mounted on an upper wall portion of a fuel tank accommodated in a fuel tank mounted on a vehicle body frame, and a passenger seat cushion The locomotive covering the fuel tank, in particular, relates to improvement of the fuel system arrangement structure of the locomotive. [Prior Art] φ A locomotive that covers a fuel tank containing a fuel pump with a passenger seat cushion is a known structure, for example, in Japanese Patent Document 1 and the like. [Patent Document 1] Japanese Patent Publication No. 7-110630 [Summary of the Invention] [Problems to be Solved by the Invention] In a structure in which a fuel pump is mounted on an upper wall portion of a fuel tank, the upper wall of the oil phase is formed. The connection part of the fuel pump and the fuel hose is arranged on the top, and it is necessary to avoid the interference of the seat cushion for the passenger on the connection part. In the above-mentioned conventional structure, the height of the seat cushion for the passenger vehicle is set to not The interference position of the connection part ® 'reduces the degree of freedom in setting the height of the seat cushion for riding. The present invention meets ^ situations, the purpose of which is to provide a locomotive fuel system configuration structure 'can increase the degree of freedom in the setting of the seat of the passenger seat, and prevent the passenger seat cushion from interfering with the connection to the fuel pump unit. -5- (2) (2) 200415059 [Means to Solve the Problems] In order to achieve the above object, the first invention is a fuel tank mounted on a body frame of a vehicle, which houses fuel mounted on an upper wall portion of the fuel tank. The pump covers a locomotive above the fuel tank with a passenger seat cushion, and is characterized in that the fuel pump is mounted on a pump mounting portion recessed downward provided on an upper wall portion of the fuel tank, and the casing is from above Cover the pump mounting section. With the structure of the first invention, since the pump mounting portion on which the fuel pump is mounted is recessed downward and is provided on the upper wall portion of the fuel tank, even if the connection portion of Xin to the fuel pump is arranged on the pump mounting In addition, it can prevent interference with the seat cushion for riding, and can increase the degree of freedom in setting the height of the seat cushion for riding. In addition, since the pump mounting portion is covered by the housing from above, when the passenger car seat cushion is opened to supply fuel to the fuel tank, it is possible to prevent accidental contact with the connection portion and protect the connection portion to the fuel pump. , So that the connection portion is not exposed and an excellent appearance can be obtained. The second invention is the structure according to the first invention, and the insertion hole for inserting the fuel pump into the fuel tank is provided in the pump mounting section, and the insertion hole is closed from above to be installed in the fuel pump. The upper cover plate of the pump is mounted on the pump mounting portion, and the housing is mounted on the cover plate. With this structure, a special member for fixing the housing to the tank side is not required, and it can be reduced. The number of parts. A third invention is the structure according to the first or second invention, and the housing is mounted on a bracket for supporting the fuel tank and provided in a vehicle body frame at a position away from the fuel pump. , You do not need special parts to install the shell, which can reduce the number of parts, and> 6- (3) (3) 200415059 can firmly support the shell. The fourth invention is an invention according to any one of the first to third inventions. A storage box covered with the above-mentioned passenger seat cushion is arranged in front of the fuel tank arranged above the rear wheel. / Ί $ The front and left sides of the oil phase are provided with the pump mounting portion fSi and the above-mentioned burning stone, temple. Moxibustion port H, burning water, and on the other side of the oil tank At the rear part or at the rear end of the left and right sides of the straight object phase, the hose extending from the fuel pump side passes through the front part of the fuel tank and the rear part of the object phase. A notch is provided therebetween, and the hose is bent and arranged so as to be slightly U-shaped on the rear side of the storage box to open one of the left and right directions. With the structure of the fourth invention, the fuel pump can be arranged at a relatively coated position of the fuel tank 'and the hose can be smoothly arranged. That is to say, although the middle portion of the fuel tank becomes shallower because it is arranged above the rear wheels, and the fuel pump is arranged on the left and right sides of the fuel tank by mistake, the fuel pump can be arranged relatively on the fuel tank. Deep position, and the hose extending from the fuel pump passes through the notch on the left and right side of the fuel tank or the rear side of the left and right side of the storage box, and is configured to bend slightly The U-shape does not matter even if the storage box is located in front of the fuel tank. It can prevent the hose from being bent too much and make it slightly bent, and can smoothly arrange the hose. The fifth invention is directed to the first to fourth of the above. According to one aspect of the present invention, a plurality of positions around the pump mounting portion are provided on the upper wall portion of the fuel tank with a seat cushion load supporting position capable of supporting the passenger seat cushion. With this structure, even under a large load, (4) (4) 200415059 can support the load of the passenger seat cushion in the plural positions around the pump mounting portion and on the upper wall of the fuel tank, so that the passenger seat cushion can be suppressed. Car seat The deformation can be avoided by a load acting from the drive side of the seat cushion to the housing. [Embodiment] The following is a description of an embodiment of the present invention based on an embodiment of the present invention shown in the drawings. 1 to 18 are diagrams showing a first embodiment of the present invention. Fig. 1 is a side view of the entire locomotive, and Fig. 2 is a view of the center portion of the locomotive in the front-rear direction with the body shell removed. A perspective view, FIG. 3 is a side view of the engine and the air intake system, FIG. 4 is an enlarged cross-sectional view taken along line 4-4 of FIG. 3, FIG. 5 is an enlarged view of the 5 end view of FIG. 3, and FIG. Fig. 6 is a sectional view taken along line 6-6, Fig. 7 is a rear view of the air sprinkler viewed from the direction of the end 7 of Fig. 3, and Fig. 8 is a sectional view taken along line 8-8 of Fig. 7, FIG. 9 is a 7-end view of FIG. 3, FIG. 10 is a plan view of the intake pipe and the fuel injection valve, and FIG. 11 is a cross-sectional view taken along line 1 1 to 11 of FIG. 10, and FIG. 12 It is a longitudinal section view of the rear portion of the locomotive. FIG. 13 is a sectional view taken along line 1 3-1 3 of FIG. 12, and FIG. 14 is a sectional view taken along line 1 4-1. 4 of FIG. The figure is an exploded perspective view of the fuel tank, the fuel pump, and the casing. FIG. 16 is an enlarged sectional view taken on line 16-16 of FIG. 13 and FIG. 17 is a sectional view taken on line 17-17 of FIG. 16, Fig. 18 is an enlarged sectional view taken along line 18-18 in Fig. 13; First, in the first figure, the body frame 20 of the locomotive is provided with a head pipe 21 that steerably supports the front fork 24, and 1 from the head pipe 2] and -8-(5) ( 5) 200415059 The main frame 22 extending in a square, and a pair of left and right rear frames 2 3 connected to the left and right of the main frame 22 and extending upward and rearward are supported by the lower end of the front fork 24. The front wheel WF has a rod-shaped steering rod 2 5 ′ connected to the upper part of the front fork 24 and a front fender 26 for supporting the upper part of the front wheel WF. With reference to Figures 2 and 3, the main frame 22 is composed of a square tube with a cross section in the cross section. Suspension plates 2 7 are fixedly installed on both sides of the middle portion of the main frame 22 ... ..., on both sides of the rear side of the main frame 22, pivot plates 28 are fixedly mounted. Below the main frame 22, there is an engine E, for example, with the cylinder axis slightly upward and forward. The engine E is supported and supported by the suspension plate 27 ... and the pivot plate 28. Suspension in the body frame 2 0. The pivot plate 28 supports a front end portion of the rear fork 29 in a swingable manner, and a rear wheel WR is pivotally supported at a rear end of the rear fork 29. A rear suspension unit 30 is provided between the rear frames 2 3... And the rear forks 29 of the vehicle body frame 20. The engine E described above constitutes a power unit p together with the transmission M, and the output of the transmission M is transmitted to the rear wheel WR via the chain 31. Above the engine E, a throttle body 3 2 and an air filter 3 3 located further forward than the throttle body 3 2 are disposed. A fuel tank 34A is disposed above the rear wheel w R. The storage box 3 5 A in front of the fuel tank 34A and above the fuel tank 3 4 a may be covered with, for example, a seat cushion 36 for a two-pass type passenger car that can be opened and closed. The body frame 20 is installed to cover: the body frame 2 0 '(6) (6) 200415059 The engine E, the throttle body 3 2, the air filter 3 3, and the fuel tank 3 4 A, and a storage box 3 5 A of a synthetic resin body shell 3 8, the body shell 3 8 ′ is: the front side shells 39 disposed on the left and right sides of the main frame 22... Covers the driver's feet from the front and connects to the front leg shields 40 of the front housings 39.... Covers the head tube 21 from the front and connects to the legs. Front cover 4 1 of the partial shield 4 0 ..., the main frame top cover 4 which covers the head pipe 2 1 from the rear side and covers the main frame 2 2 above and is connected to the front top cover 4 1 2. The upper case 4 3 connected to the lower part of the two front side cases 3 9 ...... and the rear case covering the fuel tank 3 4 A and the storage box 3 5 A from both sides 4 4 constitutes. The above-mentioned passenger seat cushion 36 is formed so as to be openable and closable, and is disposed on the upper portion of the rear casing 44 so as to allow the harvesting and removal of the articles in the opposite storage box 35a and the fuel tank 34A. The rear mudguard 45 above the rear part of the rear wheel WR is connected to the rear case 44. In FIG. 4, the throttle body 32 is configured in the following manner, and a butterfly-type throttle valve 46 for regulating the air bladder supplied to the engine E is rotatably supported by the main body portion 47 ′, and A throttle wire 49 is wound around a throttle drum 4 8 connected to the throttle valve 46 and disposed on the side of the main body portion 4 7. The main body portion 47 ′ has an intake passage 50 extending in the front-rear direction of the locomotive. A throttle valve 46 disposed in the middle portion of the intake passage 50 crosses the intake passage 50 and is rotatably supported by the throttle valve 46. Valve shaft 51 of the main body 4 ?. The throttle drum 48 is disposed on the left side of the main body portion 47 in a state facing forward in the traveling direction of the locomotive. The throttle drum 48 is fixed to the upper -10-(7) (7) 200415059 the valve shaft 5 One of the ends. A return spring 5 2 is provided between the throttle drum 48 and the main body portion 4 7 to urge the throttle valve 4 6 toward the closed side. The driver of the locomotive resists the elastic force of the return spring 5 2. The throttle cable is pulled to drive the throttle valve 46 toward the open side. In the main body portion 47, a casing 5 5 for accommodating the control unit 5 3 is attached to a side surface opposite to the throttle drum 48, that is, a right side surface. The casing 5 5 is composed of a casing main body 56 attached to the main body portion 4 7 and a cover plate 5 7 for closing the opening portion of the casing main body 5 6. The above-mentioned control unit 5 3 A circuit board (not shown) is formed on the circuit board 54 held between the case body 56 and the cover plate 57. A throttle valve sensor 58 is connected to the circuit board 54 to detect the opening degree of the throttle valve 46. The throttle sensor 58 is composed of a rotator 59 which is rotatably fitted in the housing body 5 6 and a conductive brush 6 0 and 6 protruding from the rotator 5 9 toward the circuit board 54 side. 0, and a resistor Φ 6 1 formed on the circuit board 5 4 in sliding contact with the conductive brushes 6 0 and 60, and the rotator 5 9 is fitted in a state that cannot be relatively rotated and does not shake. Valve shaft 5] on the other end. The rotator 59 is coaxial with the valve shaft 51, and is rotatably supported by a support shaft 62 protrudingly provided on the cover plate 57 through the circuit board 54. With this throttle sensor 58, the opening degree of the throttle valve 46 is detected as the voltage between both ends of the resistor 61 and detected on the control unit 53 side. The main body portion 47, which is on the upstream side from the throttle valve 4, 6 is provided with a perforation 6 3 which is opened in the intake passage 50, and penetrates through the perforation 6 3 to seal the front end -11-(8) (8) 200415059 A thin-walled bottomed cylindrical detection tube 64 with a closed surface facing the intake passage 50 is integrally provided in the housing body 56. The thermistor 65 closely attached to the inner surface of the front end closed portion of the detection tube 64 and the terminal 66 extending from the thermistor 65 in the detection tube 64 and connected to the circuit board 54 constitute the intake air temperature sensing The device 67 and the control unit 53 can detect the voltage change according to the change of the resistance 値 of the thermistor 65 as the intake air temperature changes. In addition, after the intake air temperature sensor 67 is housed in the detection tube 64, a sealing compound 68 made of synthetic resin is filled. The throttle valve sensor 5 8 and the intake air temperature sensor 6 7 are connected to the circuit board 5 4 of the control unit 5 3 mounted on the throttle body 4 7. Therefore, the throttle valve sensor 5 can be used. 8 and intake air temperature sensor 6 7 The wiring to the control unit 5 3 is made very short. The upper part of the housing 55 is extended to the throttle drum 48 side across the upper part of the main body part 47, and the coupler 69 on the same side as the opening of the throttle drum 48 is integrally formed in the housing. 55's housing body 56. # In FIG. 3, the synthetic resin filter case 7 included in the air filter 3 3 is a bowl-shaped case main body 7 1 supported by the main frame 2 2 and the case facing the case. The main body 71 has an open bowl-shaped housing 72 to hold the filter unit 7 3 between the peripheral parts of 71 and 72 and are combined with each other. The filter case 70 is divided into: a housing 72 The unclean room 74 on the side and the clean room 75 on the box body 71 side. The case body 7] of the filter case 70 is fixedly connected to introduce purified air from the air filter 33 to the throttle body 3 2 -12-(9) (9) The connection pipe 7 6 of 200415059, the upstream end of the connection pipe 7 6 extends into the purification chamber 7 5, and the downstream end of the connection pipe 7 6 is fitted and integrated with the throttle body 3 2. The upstream-side connecting cylinder 4 7 a of the main body portion 4 7 (see FIG. 4). In addition, a fixing band 7 7 for fixing the connection state of the connection pipe 7 6 to the throttle body 32 is wound around the downstream end of the connection pipe 7 6 and is locked by a bolt member 7 8 The fixing belt 7 7 can fix and maintain the connection state of the connection pipe 76 to the throttle body 32. With reference to FIGS. 5 to 8, a shield plate 79 is provided at the lower part of the box body 71 of the filter body box 70 of the air filter 33, and the shield The plate 7 9 is at least a throttle drum 4 8 of a throttle body 32 arranged at an obliquely rearward and downward position of the air filter 3 3 from the front. The coupler 6 9 included in 5 is also disposed on the throttle drum 4 8 side, and the shield 69 is also covered with the coupler 69 from the front. The shielding plate 7 9 at a position corresponding to the fixing tape 7 7 is provided with, for example, a circular operation opening 80, and the shielding plate 7 9 is provided with an opening 8 for opening and closing the operation. 0 and the cover 8 1 arranged on the front side of the shielding plate 7 9. A support hole 82 is provided in the shielding plate 79 at a position deviating from the operation opening 80, and a support shaft 83 inserted into the support hole 82 in the cover 81 made of rubber is integrally protruded. When the support hole 82 is inserted, the diameter of the front end side can be reduced, and a plurality of elastically engaged with the back surface of the shielding plate 79 around the support hole 82 are integrally provided at the front end of the support shaft 83. The engaging claw portion S 3 a · .. In other words, the cover 8 1 is -13- (10) (10) 200415059 at: the position for closing the operation opening 80 as shown by the solid line in FIG. 5 and the dotted line as shown in FIG. 5 Between the positions where the operation opening 80 is opened as shown, it is mounted on the shielding plate 79 so as to be rotatable around the axis of the support hole 82. The cover 81 is integrally provided with a fitting cylinder 8 4 that is divided into a plurality of parts in the circumferential direction. The fitting cylinder 8 4 is elastically fitted to the operation opening in a closed state of the operation opening 80. In the part 80, a plurality of engaging claw parts 84a provided at the front end of the fitting tube 84 are elastically engaged with the back surface of the shielding plate 79 around the operation opening part 80, and cover the 8 1 to maintain the closed state of the operation opening 80. The lower end of the shielding plate 7 9 of the part of the engine E corresponding to the cylinder head housing 8 7 is provided with the following: When the cylinder head housing 8 7 is removed to perform pusher adjustment of the valve device of the engine E, Insert a tool 8 6 such as a wrench into the notch 7 9 a of the cylinder head housing 8 7. In this embodiment, a synthetic resin throttle drum cover 1 6 1 that covers the throttle drum 4 8 of the throttle body 32 from the left side is mounted on the above-mentioned air filter 3 3 . That is, the left side of the back of the case main body 7 1 of the filter case 70 of the air filter 33 is integrally provided with a bolt member 1 62 to lock the above-mentioned throttle drum cover] 6 The upper mounting hub 7 1 a of 1 is provided with a slightly L-shaped engaging claw portion provided at the lower left portion of the shielding plate 7 9 and the lower portion of the throttle drum cover 1 6 1. ] 6] a engaging rectangular engaging hole] 6 3. And the throttle drum cover -14- (11) (11) 200415059 1 6 is engaged with the engaging claw portion 161a to the engaging hole 163, and the lower portion thereof abuts against the back surface of the shielding plate 79. The upper part of 1 is bolted] 6 2 to the mounting hub 7 1 a, and the throttle drum cover 6] is mounted on the air filter 3 3. Below the cylinder head 88 of the engine E is an exhaust pipe 1 64 connected to an exhaust port (not shown) connected to the cylinder head 8 8 for supplying fresh secondary air to the exhaust gas. Orifice to exhaust pipe] 6 4 The downstream end of the pipeline 1 6 5 in the exhaust gas is connected to the cylinder head housing 8 7, and the upstream end of the pipeline 1 6 5 is supported by the engine E Secondary air control valve 1 6 6. The secondary air control valve 6 is a filter 167 supported by being connected to the main frame 22. The filter 1 6 7 is connected to the downstream end of the air supply pipe 1 6 8 extending forward from the filter 16 7 along the main frame 22, and the upstream end of the air supply pipe 16 is extended to Above the air filter 3 3, the air filter 33 is opened into the air in the vehicle body shell 38. In the upper part of the rear surface of the filter case 70 of the filter case 70 of the air filter 33, a fitting groove is provided for fitting the above-mentioned air supply pipe] 6 8 near the upstream end. 1 6 9, and an engagement pin bolt 1 70 of an air supply pipe 1 6 8 which abuts from above and engages with a portion where the fitting groove 1 69 is fitted is integrally protrudingly provided. In other words, the part near the upstream end of the air supply pipe 168 is held in the box body by being fitted into the fitting groove 169 and abutting and engaging with the engaging pin I 7 〇 from above. 7 1 The upper part of the back. Therefore, it is not necessary to install a special clamp for holding the air supply pipe to the main frame 22. The main body part 4 7 of the throttle body 3 2 —the downstream-side connection cylinder 4 7 b (refer to FIG. 4) provided in the body is connected to the upstream end of the intake pipe 8 9-15- 200415059 Π2) The downstream end of the intake pipe 89 is connected to the upper part of the cylinder head 88 of the engine E. Referring to FIG. 9 to FIG. 1 together, the intake pipe 89 is connected to the throttle body 32 and the cylinder head 88 which is diagonally lower than the throttle body 32, and is bent. To be slightly C-shaped, the air inlet pipe 8 9 is covered with a covering material 90 made of rubber and fired on its surface, and the downstream side connecting cylinder 4 7 b of the above-mentioned _ flow valve main body 3 2 is covered. The connection cylinder portion 90a provided integrally with the covering material 90 is tightly fitted to connect the throttle valve main body 32 to the intake pipe 89. A fuel injection valve 9 1 for injecting fuel into the cylinder head 8 8 is attached to the intake pipe 8 9. The opening and closing operation of the fuel injection valve 9 1 is accommodated and fixed to the throttle body 3. The main body 4 of 2 is controlled by a control unit 5 3 inside a housing 5 5. The intake pipe 8 9 is provided with a mounting hole 9 2 ′ which is opened toward the cylinder head 8 8 side. The front end portion of the intake pipe 8 9 is fitted into the intake pipe 8 9 and the front end portion of the fuel injection valve 9 is fitted airtightly.于 Installation hole 92. The rear end of the fuel injection valve 91 is fitted to the lid 93 in a liquid-tight manner, and the mule 93 is locked to the intake valve 89. That is, the fuel injection valve 91 is sandwiched between the intake pipe 89 and the cover 93 and is attached to the intake pipe 89. The cover 9 3 ′ is provided with a fuel supply passage 94 communicating with a downstream end thereof to a rear end portion of the fuel injection valve 91, and an inlet-side connection pipe 95 communicating with an upstream end of the fuel supply passage 94 is connected by a flange. To cover 9 3. The cover 93 is provided with a return flow path 9 6 branched from the fuel supply path 94-(13) (13) 200415059, and a pressure regulating valve 97 is connected to the return flow path 96. The valve housing 9 8 of the pressure regulating valve 9 7 is disposed parallel to the fuel injection valve 91 at a position adjacent to the fuel injection valve 91, and an upper end portion of the valve housing 9 S is mounted on a cover. 9 3, and a connection pipe 9 9 that communicates liquid-tightly to the return passage 9 6 is interposed between the upper end portion of the valve housing 98 and the cover 93. In other words, the pressure regulating valve 97 is made so as not to protrude from the cover 93 to the side, and is arranged to extend downward from the cover 93. At the lower part of the valve housing 98, a diaphragm 1 is incorporated. A peripheral portion of 〇〇 is held between the housing 1 between the valve housing 98, and a valve chamber 102 is formed between the valve housing 98 and the diaphragm 100 to communicate with the above-mentioned return passage 96. A spring chamber is formed between the diaphragm 100 and the housing 100. The valve housing 98 is integrally provided with a return-side connection pipe portion 104 which is integrally provided below the inlet connection pipe 95 which is flange-bonded to the cover 9 · 3 and extends toward the same side as the inlet connection pipe 95. The cylindrical valve seat member 105 connected to the return-side connecting pipe portion 104 is a central portion facing the valve chamber 100 and is fitted and fixed so that a part thereof protrudes from the diaphragm 100. side. In the central part of the diaphragm 100, a valve body 106 which can be slightly agitated while holding an end portion of the valve chamber 102 side which can abut against the valve seat member 5 is placed in the spring chamber 1 0. 3, is a spring 10 7 containing a compression set between the casing 101 and the diaphragm] 00, and is used to emit the elastic force of the fe diaphragm 100 bent toward the valve chamber 1002 side. In this pressure adjustment valve 97, if the diaphragm is used to move the diaphragm] 〇〇 toward the spring chamber] 0 3 side pressure of the valve chamber] 〇2 side hydraulic pressure exceeds the diaphragm] 0 0 -17-(14 ) (14) 200415059 Spring chamber that springs toward the valve chamber 〇2 side] 〇3 If the spring force is on the side, the diaphragm 1 0 0 will bend toward the spring chamber 10 3 side and the valve body] 〇6 will move from the valve seat member 1 0 5 is separated. The hydraulic pressure of the fuel supply path 9 4 which is connected to the valve chamber 10 via the return path 10 6 is the fuel supply pressure to the fuel injection valve 91 and is adjusted so as not to exceed the set pressure. Since the pressure regulating valve 97 is disposed adjacent to the fuel injection valve 91 as described above, the length of the fuel supply path 94 connected between the fuel injection valve 91 and the pressure regulating valve 97 can be shortened. On the other hand, the temperature of the fuel flowing through the fuel supply path 94 can be prevented from becoming high. In FIGS. 12 to 14, the fuel tank 34A is a structure in which a lower fuel tank half 1 1 0 and an upper fuel tank half 1 1 1 are combined with each other, and the two oil phase halves 1 1 0, 1 1 1 The entire outer periphery of the joint portion is formed integrally with a crocodile portion 1 1 2 protruding outward. The fuel tank 3 4 A is supported by the two rear frames 23... Of the vehicle body frame 20. The rear frame 23... Is provided with a support for the fuel tank 3 4 A. The front bracket 1] 3.... And the support hub Η 4... For supporting the rear part of the fuel tank 3 4 A. The crotch 1] 2 placed on the above-mentioned bracket 1] 3 ... is locked by bolts 1 1 5 ... and welding nuts 116 ... The bracket 1 1 3... Is placed on the support hub 1 1 4....... Hub〗 1 4 ....... The fuel tank 34A is disposed above the rear wheel WR. In order to avoid interference from the rear wheel WR, the bottom of the fuel tank 34A is also the bottom of the lower fuel tank half 1]. The left and right central portions are swelled upward. In other words, the fuel tank 3 4 A is formed deeper in the left and right side portions 3 4 L and 3 4 R than the center -18- (15) (15) 200415059 portion 3 4 C. σ 倂 Refer to the diagram of Table 1 and 5. In the fuel tank 3 4 A, the fuel pump 1 1 8 is contained. The fuel pump n 8 is installed on the upper wall of the fuel tank 34 A, which is the upper fuel tank half.] 1 1 . On the left and right sides of the fuel tank 3 4 A (the left side part 3 4 L in this embodiment), the front wall of the upper wall is provided with a recessed and flat pump mounting portion Π 9, and the fuel tank 3 4 A On the left and right sides (in this embodiment, the right side portion 3 4 R) of the upper wall front portion is a hose arrangement portion 1 2 0 which is inclined toward the front and downward. The pump mounting portion 1 1 9 is provided with, for example, an oval insertion hole 1 2 1 for inserting the fuel pump 1 1 8 into the fuel tank 3 4 A. That is to say, the fuel pump 1 1 8 is disposed on one of the left and right sides of the fuel tank 3 4 A (the left side part 3 4 L in this embodiment). A filter (not shown) is connected to a lower part of the fuel pump 1 1 8, and a filter chamber 1 2 2 for covering the filter is formed so as to maintain a predetermined liquid level in the filter chamber 1 2 2 A buoy 1 2 3 that is supported at the lower φ portion of the fuel pump 1 1 8 and is used to detect the fuel level in the fuel tank 3 4 A is supported by the fuel pump 1 1 8. A mounting plate 124 formed in an elliptical shape surrounding the insertion hole 12 1 is welded to the upper surface of the pump mounting portion 1 19. The mounting plate 124 is formed by alternately connecting in the circumferential direction: a plurality of, for example, six low-position portions 1 24 a ... The high-level portions 1 2 4 b..., Each of the low-level portions] 2 4 a... Are respectively welded to the upper surface of the pump mounting portion Π 9. -19-(16) (16) 200415059 Combined with reference to Figure 16 and Figure 17, the lower parts of the above high parts 1 2 4 b ... are welded from the high parts 1 2 # …… Bolts protruding upwards 125 ... 'is made to seal the above-mentioned insertion hole] 2 1 from above, and each of the above bolts] 2 5 ... is inserted into the fuel pump浦]] 8 The outer peripheral portion of the oval flat cover plate 1 2 6 at the upper end of 8 is locked to the cover plate 126 by a nut 127 ... screwed onto a bolt 125 ... That is, the fuel pump 1 1 8 is installed in the pump installation section 9. A rubber gasket 128 is mounted between the pump mounting portion 1 1 9 and the cover plate 1 2 6. The gasket 128 is a high position portion for arranging the women's clothing plates 1 2 4 respectively. 1 2 4 b ... the openings 1 2 9 ... are formed into an elliptical shape, and a nut 127 ... is screwed onto each bolt 125 ... Tight, the gasket 128 will be clamped between the lower part 1 2 4 a ... of the mounting plate 124 and the cover plate 1 2 6 and clamped to the pump with the inside and outside of the mounting plate 丨 2 4 PU mounting section 1 1 9 and the cover mentioned above! Between 26. The upper end of the fuel pump 1 1 8 is connected to a discharge pipe 1 3 0 bent in a slightly l-shape, and the fuel pump 1 丨 8 will discharge fuel from the discharge pipe 丨 30. The cover plate 1 2 6 is a return pipe 1 3 1 which is fixedly attached to the cover plate 1 2 6 and penetrates the cover plate 1 2 6 and extends to the lower portion of the fuel tank 3 4 a on the side of the fuel pump 1 1 8. Above the cover plate 1 2 6, the return pipe 丨 3 丨 is bent into a slightly L shape similar to the above-mentioned discharge pipe 1 3 0. Above the cover plate 1 2 6, the above-mentioned discharge pipe 丨 3 〇 and the return pipe 丨 3 1 are arranged in parallel diagonally to the right and forward, and the discharge pipe 1 3 0 is the upstream end of the fuel car fire pipe] 3 2 'In the return pipe] 3 1, the downstream end of the return hose] 33 is connected' The upstream end of the return hose] 33 is the return flow connected to the pressure -20- (17) (17) 200415059 Side connection tube section 104. At the front end of the fuel tank 3 4 A along the directions of the discharge pipe 1 3 0 and the return pipe 1 3], that is, the crotch 1 1 2 at the right front end of the fuel tank 34A with the fuel pump 118 disposed at the front left side. A notch 1 35 is provided, and the notch 1 3 5 is formed to allow the fuel hose 1 3 2 and the return hose 1 3 3 to pass through the space between the heel portion 12 and the storage box 35A disposed in front of the fuel tank 34A. The fuel is soft. The pipes 1 3 2 and the return hose 1 3 3 are extended from the discharge pipe 1 3 0 and the return pipe 1 3 1 through the above-mentioned notch 1 3 5 through the hose arrangement portion 1 2 0 and are placed in the storage box 3 The rear of 5 A is bent to extend toward the left side of the storage box 3 5 A. In other words, the fuel hose 1 3 2 and the return hose 1 3 3 connected to the discharge pipe 1 3 0 and the return pipe 1 3 1 are slightly U-shaped bent and arranged to open to the left behind the storage box 3 5 A. . In the storage box 3 5 A, the left officer 1 3 3 is limping forward, and the downstream end of the fuel hose 3 2 is connected to the pressure filter 1 3 6. The high pressure filter 3 6 is at The left side of the front part of the storage box 35 is supported by a support member 134 on one side of the front part of the rear frame 23. The upstream end is connected to the high-pressure filter 36. The fuel soft = 37, and 疋 is connected to the fuel The inlet-side connection pipe 95 is supplied to the lid ^ 3 of the fuel injection valve 91. In addition, the high-pressure filter 136 is supported by the support member 134 on the rear frame by disassembling the main frame top 2 to facilitate maintenance. 3. Fuel hoses and relays] 33, are connected to the cover "and ^ force δ rounding_ 9 7, from the fuel pump] 2r to Π8 fuel is a reciprocating cycle 'pressure regulator near the injection valve m The valve 97 prevents the temperature of the fuel from rising even if the engine ε -21. (18) (18) 200415059 is disposed below the fuel hose 1 3 2 and the return hose 1 3 3. The above-mentioned pump mounting portion 1] 9 and the hose arrangement part 1 2 0 are used to cover the upper end of the fuel pump 1 1 8, the fuel hose 1 3 2, and the return hose] 3 3 The housing 1 3 8 is covered from above, the The case 1 3 8 is a pair of supporting members locked to the cover plate 1 2 6 which is fixed to the fuel Kuriura 1 1 8] 3 9, 1 j 9. That is, the 'case 1 3 8' is supported by The members 1 3 9 and 1 3 9 are installed on the cover 1 2 6. 0 The supporting members 1 3 9 and 1 3 9 are arranged on the opposite sides of each other through the insertion holes 1 4 A of the fuel tank 3 and are A pair of six sets of bolts 1 2 5 ... and nuts 1 2 7 ... which are used to lock the fuel pump 丨 8 cover plate 1 2 6 to the mounting plate 丨 2 4 Two sets of bolts 1 2 5 ... and nuts 1 2 7 ... The cover plate 126 is formed so as to bulge upward from the cover plate 126. Further, on the upper inner surface of each of the supporting members 1 3 9 and 3 9, welding nuts 1 4 0 and 1 4 0 are fixed. It is placed on the supporting members 1 3 9 and 1 3 9 and is inserted into the shell member 3 8 and the supporting member i 3 9 and 3 9. The bolt member Xin 1 4 1 and 1 4 1 are screwed to the welding nut.丨 4 〇, 1 4 0. At the position away from the fuel pump 11 18, that is, the right end portion of the housing 1 3 'is a right front portion that supports the fuel tank 3 4 A, and is supported by the right rear frame 2 3 The fixed bracket 1 1 3, as shown in FIG. 18, is bolted to the bracket by bolts 15 and welding nuts 1 1 6 and the crotch portion 1 1 2 on the right front of the fuel tank 3 4 A. 1 1 3. The lower part of the storage box 3 5 A is supported by two rear frames 2 3 ... as shown in Fig. 12 through a pair of mounting members] 4 3 ... -22- (19) (19) 200415059 set in the front part of the front] 4 2 on the left and right upper ends of the rear of the storage box 3 5 A, as shown in Figure 18, through the mounting member M4 ... ... is supported on the front of the bracket 1 1 3 ... The support cymbals 3 5 a ... placed on the left and right upper ends of the rear part of the storage box 3 5 A and the front part of the bracket U 3 ... are respectively mounted with mounting members 1 4 4 .... .. a synthetic resin washer 1 4 9 on the support flange 3 5 a... Abuts against the upper surface of the support f deficit portion 3 5 a. The mounting members 1 4 4... Are inserted through a metal cylindrical collar M5..., And are abutted on the gasket M9... And the upper end of the collar 145. Metal gaskets 148 ....... The bolt 1 4 7 having the locking head 1 4 7 a engaged with the washer 148 is inserted through the washer i 4 8... And the collar 1 4 5..., The welding nut 1 4. 6 ... is fixed below the front part of the bracket 113 ... 'by the above-mentioned bolts 1 4 7 ... which will be screwed to the welding nut 1 4 6 ... ... If it is locked, the left and right upper ends of the storage box 3 5 A are supported by the brackets}} 3 The front end of the passenger seat cushion 3 6 is supported by the storage box φ 5 through the hinge The upper part of the front center of 3 A, when the passenger seat cushion 3 6 is closed, the supporting plate I 5 1 for supporting the rear portion of the passenger seat cushion 3 6 is provided on the two rear frames 2 3 .... .. Between the rear part, a pair of elastic materials 1 5 3 ... which are fixed to the lower part of the bottom plate 3 6 a of the seat cushion 3 6 for a vehicle are in contact with the support plate 1 5 1. On the support plate 1 5 1, both ends of the armrest rod i 5 2 are mounted. 〇 When the load applied to the passenger seat cushion 36 in the closed state is small,
乘車用座墊3 6的前後方向中間部並不會抵接於油箱3 4 A -23- (20) (20)200415059 ’可是當荷重變大而乘車用座墊3 6朝下方撓曲時，用來 支承乘車用座墊3 6的荷重的座墊荷重支承位置是在上述 泵浦安裝部1 9 9的周圍的複數位置，在該實施例中是三個 位置’設定在油箱3 4 A的上壁部，固定在乘車用座墊3 6 的底板3 6 a的下面部的三個彈性材料！ 5 4 a、1 5 4 B、1 5 4 C 是在上述各座墊荷重支承位置可抵接於油箱3 4 A的上壁 部。而也可以省略上述彈性材料]5 4 C，在一對座墊荷重 支承位置將彈性材料1 5 4 A、1 5 4 B抵接於油箱3 4 A的上壁 H 部。 用來將燃料供給到油箱3 4 A的燃料注入口（沒有圖 示）是設置在油箱34 A的上壁部的略中央部，用來關閉 該燃料注入口的燃料注入蓋i 5 5則是可裝卸地被安裝在油 箱3 4 A的上壁部。 接下來針對該第一實施例的作用來加以說明，在空氣 濾淸器3 3的濾淸器盒體7 0，是一體地設置有從前方覆蓋 節流閥主體3 2中的至少節流閥鼓4 8的遮蔽板7 9，可避 修 免零件數量的增加’且可防止前輪所噴上來的污水或泥巴 噴到節流閥鼓4 8。 在節流閥主體3 2的主體部4 7，是安裝有用來控制將 燃料供給到引擎E的燃料噴射閥9 1的作動的控制單元5 3 ’該控制單元5 3也是以遮蔽板7 9從前方覆蓋，所以也可 以提高控制單元53的防水及防泥性。 用來k側邊邊舍:節流閥主體3 2的節流閥鼓4 8的節流 _鼓護罩1 6 1是安裝在空氣濾淸器33的濾淸器盒體7〇， -24 - (21) (21)200415059 所以可以防止污水或泥巴從節流閥主體3 2的側邊噴到節 流閥鼓4 8。 在用來將導引來自於空氣濾淸器3 3的淨化空氣的連 接管7 6連接到節流閥主體3 2的固定用帶7 7所對應的位 置，是在遮蔽板7 9設置有操作用開口部8 〇，而可將操作 用開口部8 0進行開閉的蓋子8 1是安裝在遮蔽板7 9，所 以雖然有遮蔽板7 9，而只要通過操作用開口部8 〇從前方 將手指插入按壓固定用帶7 7，就可從遮蔽板7 9的側邊容 馨 易地進行固定用帶7 7的鎖緊及放鬆作業，而可提升維修 或組裝時的作業性。 用來安裝收容於油箱3 4 A內的燃料泵浦1 1 8的泵浦 安裝部1 1 9，朝下方凹陷且設置在油箱3 4 A的上壁部，是 以外殼1 3 8從上方覆蓋該泵浦安裝部1 1 9，所以即使將對 於燃料泵浦1 1 8的燃料軟管1 3 2及回流軟管1 3 3等連接部 配置在泵浦安裝部119上，也可防止與乘車用座墊36的 干涉，可增加乘車用座墊3 6的高度設定的自由度。並且 β 藉由外殼3 6從上方覆蓋泵浦安裝部U 9，當要供油到油 箱3 4 Α而將乘車用座墊3 6開啓時，可確實地防止接觸到 上述連接部而可以保護對於燃料泵浦Π 8的連接部，並且 不會讓上述連接部露出而可得到較佳的外觀。 作成將燃料泵浦1 ] 8插入到油箱34A ’且作成從上方 封閉設置在泵浦安裝部]]9的插入孔1 2 1，設置在燃料泵 浦]1 8的上端的蓋板1 2 6是被安裝在泵浦安裝部]]9，由 於是經由支承構件1 3 9、] 3 9將外殼]3 8安裝在蓋板]2 6 -25- (22) (22)200415059 ’所以不需要將外殼1 3 8固定在油箱3 4 A側的特別的構 件，而可以減低零件數量。 遠離燃料泵浦1 1 8的外殼】3 8的右側前部，是與油箱 3 4 A —起鎖裝被安裝在，支承油箱3 4 A而設置在車體框架 2 〇的後框架2 3所設置的支架丨丨3，所以不需要用來安裝 外殻1 3 8的零件而可減少零件數量，可以堅固地支承外殼 138 〇 由於上述泵浦安裝部1 1 9及上述燃料泵浦1 1 8是被配 鲁 置在後輪WR的上方所配置的油箱34A的左右其中一側（ 在該實施例中是左側部3 4 L )，而可以將燃料泵浦1丨8配 置在油箱3 4 A的較深位置。也就是說，雖然由於配置在 後輪W R上方導致油箱3 4 a的左右方向中央部3 4 c較淺 ，可是錯由將燃料泵浦1 1 8配置在油箱3 4 A的左右其中 一側，則可將燃料泵浦]1 8配置在油箱3 4 A的較深位置 〇 在油箱3 4 A的左右另一側（在該竇施例中是右側部 · 34R )的前端部，是設置有將從燃料泵浦1 1 8側延伸出的 燃料軟管132及回流軟管133通過配置在油箱34A的前 方的置物箱3 5 A的後部之間的缺口 3 5，燃料軟管]3 2及 回流軟管1 3 3 ’是在置物箱3 5 A的後方側彎曲配置成將上 述左右方向其中一側（在該實施例中是左側）開放成略u 字型。藉此，即使置物箱3 5 A在油箱3 4 A的前方也沒關 係，可以避免燃料軟管]3 2及回流軟管]3 3大幅度地彎曲 ，而讓其小幅度地彎曲，而可以順暢地配置燃料軟管]3 2 -26- (23) (23)200415059 及回流軟管1 3 3。 在泵浦安裝部1 1 9周圍的複數位置的油箱3 4 A的上 壁部，設定了可支承乘車用座墊3 6的座墊荷重支承位置 ，即使由於大荷重的作用而讓乘車用座墊3 6下沉，也能 以泵浦安裝部Π 9周圍的複數位置，在油箱3 4 A的上壁 部支承乘車用座墊3 6的荷重，而可抑制乘車用座墊3 6的 變形，可避免來自於乘車用座墊3 6側的荷重作用到外殼 13 8° 第1 9圖是顯示本發明的第二實施例，將泵浦安裝部 1 1 9及燃料泵浦1 1 8配置在油箱3 4 B的左右其中一側（在 該實施例中是左側）的前部，在配置於油箱3 4 B的前方的 置物箱3 5 B的左右另一側（在該實施例中是右側）的後端 部，是設置有讓延伸來自於燃料泵浦1 1 8側的軟管1 3 2、 1 3 3通過油箱3 4 B的前部與置物箱3 5 B的後部之間的缺口 157° 該第二實施例，也可達到與上述第一實施例同樣的效 果。 第2 0圖是顯示本發明的第三實施例，在配置於置物 箱35C的前方的油箱34C的左右方向中央部的後部上壁 部所設置的泵浦安裝部Π 9 /，是安裝著收容於油箱3 4 C 內的燃料泵浦1 1 8的上端，是以外殼1 3 8 —從上方覆蓋泵 湳安裝部U 9 / 。 在置物箱3 5 C的左右方向其中一側的前端部，設置有 _從上述燃料泵浦118側延伸出的燃料軟管132及回流軟 -27- (24) (24)200415059 管]3 3通過與油箱3 4 C的後部之間的缺口 1 5 8，燃料軟管 ]3 2及回流軟管1 3 3是被彎曲配置成開放左右方向另一側 (在該實施例中是右側）的略U字型。 以上說明本發明的實施例’本發明並不限定於上述貫 施例，只要不脫離本發明的請求範圍’可以進行各種設計 變1更。 〔發明效果〕 藉由以上的第1發明’即使對燃料泵浦的連接部被配 置在栗浦安裝部上，也可防止與乘車用座墊的干涉，可以 增加乘車用座墊的高度設定的自由度。並且當要對油箱進 行供油而將乘車用座墊開啓時，可保護對燃料泵浦的連接 部，而可得到優異的外觀。 藉由第2發明，則不需要用來將外殼固定在油箱側的 特別構件，而可減少零件的數量。 藉由第3發明，則不需要用來安裝外殼的專門的零件 ，可以減少零件數量，並且可以堅固地支承外殻。 藉由第4發明，則可將燃料泵浦配置在油箱的較深的 位置，並且可以順利地配置軟管。 錯由桌5發明’能抑制乘車用座墊的變形，可以避免 來自於乘車用座墊側的荷重作用到外殼。 【圖式簡單說明】 第]圖是第一實施例的機車的全體側面圖。 -28 - (25) (25)200415059 第2圖是在將車體外殼卸下的狀態的機車的前後方向 中央部的立體圖。 第3圖是引擎與進氣系統的側面圖。 第4圖是第3圖的4 一 4線放大剖面圖。 第5圖是第3圖的5端視放大圖。 第6圖是第5圖的6 — 6線剖面圖。 第7圖是從第3圖的7端視方向來看的空氣濾淸器的 背面圖。 第8圖是第7圖的8 — 8線剖面圖。 第9圖是第3圖的9端視圖。 第1 〇圖是進氣管及燃料噴射閥的平面圖。 第1 1圖是第1 0圖的1 1 一 1 1線剖面圖。 第1 2圖是機車的後部縱剖面圖。 第1 3圖是第1 2圖的1 3 — 1 3線剖面圖。 第14圖是第13圖的14 一 14線剖面圖。 第1 5圖是油箱、燃料泵浦、以及外殼的分解立體圖 〇 第1 6圖是第1 3圖的1 6 - 1 6線放大剖面圖。 第17圖是第16圖的17— 17線剖面圖。 第1 8圖是第1 3圖的1 8 — 1 8線放大剖面圖。 第1 9圖是對應於第—實施例的第1 3圖的剖面圖。 第2 0圖是第三實施例的油箱及置物箱的平面圖。 〔圖號說明〕 -29 - (26) (26)200415059 2 0 :車體框架 3 4 A、3 4 B、34C ：油箱 3 5 A、3 5 B :置物箱 3 6 :乘車用座墊 1 1 3 :支架 ]1 8 :燃料泵浦 1 1 9、1 1 9 / :泵浦安裝部 1 3 2 :燃料軟管 1 3 3 :回流軟管 1 3 5、1 5 7 :缺口 13 8、1 3 8 / :外殼 WR :後輪The middle part in the front-rear direction of the passenger seat cushion 3 6 does not abut the fuel tank 3 4 A -23- (20) (20) 200415059 'But when the load becomes large, the passenger seat cushion 36 is bent downward At this time, the seat cushion load supporting position for supporting the load of the vehicle seat cushion 36 is a plurality of positions around the above-mentioned pump mounting portion 199, and in this embodiment, three positions are set to the fuel tank 3. 4 A upper wall part, three elastic materials fixed to the lower part of the floor 3 6 a of the passenger seat cushion 3 6! 5 4 a, 1 5 4 B, and 1 5 4 C are abutment on the upper wall portion of the fuel tank 3 4 A at the above-mentioned seat cushion load supporting positions. Alternatively, the above-mentioned elastic material may be omitted] 5 4 C, and the elastic materials 1 5 4 A and 1 5 4 B are abutted against the upper wall H of the fuel tank 3 4 A at a pair of seat cushion load supporting positions. A fuel injection port (not shown) for supplying fuel to the fuel tank 3 4 A is provided at a slightly central portion of an upper wall portion of the fuel tank 34 A, and a fuel injection cap i 5 5 for closing the fuel injection port is Removably mounted on the upper wall portion of the fuel tank 3 4 A. Next, the function of this first embodiment will be described. The filter case 70 of the air filter 33 is integrally provided with at least a throttle valve covering the throttle valve body 32 from the front. The shielding plate 79 of the drum 48 can avoid the increase of the number of parts, and can prevent the sewage or mud sprayed from the front wheels from being sprayed onto the throttle drum 48. A control unit 5 3 'is installed at the main body portion 4 7 of the throttle body 3 2 to control the operation of the fuel injection valve 9 1 for supplying fuel to the engine E. The control unit 5 3 is also a shield plate 7 9 It can also improve the waterproof and mud-proof properties of the control unit 53. It is used for k side housings: throttle body 3 2 throttle drum 4 8 throttle_drum cover 1 6 1 is a filter case 70, -24 mounted on the air filter 33 -(21) (21) 200415059 Therefore, it is possible to prevent sewage or mud from spraying from the side of the throttle body 32 to the throttle drum 48. The shielding plate 7 9 is provided with an operation at a position corresponding to the fixing band 7 7 for connecting the connecting pipe 7 6 for purifying air from the air filter 3 3 to the throttle body 3 2. The cover 8 1 that can be opened and closed with the opening 80 for operation is attached to the shielding plate 79. Therefore, although there is a shielding plate 79, the finger can be opened from the front through the opening 8 for operation. By inserting and pressing the fixing strap 7 7, the fixing strap 7 7 can be easily locked and released from the side of the shielding plate 7 9, and the workability during maintenance or assembly can be improved. The pump mounting portion 1 1 9 for mounting the fuel pump 1 1 8 accommodated in the fuel tank 3 4 A is recessed downward and is provided on the upper wall portion of the fuel tank 3 4 A, and is covered by the casing 1 3 8 from above Since this pump mounting portion 1 1 9, even if connection portions such as a fuel hose 1 3 2 and a return hose 1 3 3 for the fuel pump 1 1 8 are arranged on the pump mounting portion 119, it is possible to prevent the The interference of the vehicle seat cushion 36 can increase the degree of freedom in setting the height of the vehicle seat cushion 36. In addition, β covers the pump mounting portion U 9 from above with the housing 36, and when the fuel is supplied to the fuel tank 3 4 A and the passenger seat cushion 3 6 is opened, it can be surely prevented from contacting the connection portion and can be protected. As for the connection portion of the fuel pump UI 8, a better appearance can be obtained without exposing the connection portion. The fuel pump 1] 8 is inserted into the fuel tank 34A ′, and the insertion hole 1 2 1 is provided to close the pump mounting portion]] 9 and the cover plate 1 2 6 is provided at the upper end of the fuel pump] 1 8 It is installed in the pump installation part]] 9, because the housing is installed through the support member 1 3 9,] 3 9] 3 8 is installed on the cover] 2 6 -25- (22) (22) 200415059 'so it is not necessary The special component that fixes the case 1 3 8 to the fuel tank 3 4 A side can reduce the number of parts. The casing away from the fuel pump 1 1 8] The right front part of the 3 8 is installed with the fuel tank 3 4 A. It is installed in a lock and supports the fuel tank 3 4 A and is installed in the rear frame 2 3 of the vehicle body frame 2 The bracket is provided 3, so there is no need to install the components of the housing 1 3 8 and the number of parts can be reduced, and the housing 138 can be firmly supported. 〇 Because of the pump mounting portion 1 1 9 and the fuel pump 1 1 8 It is one of the left and right sides of the fuel tank 34A (left side part 3 4 L in this embodiment) arranged above the rear wheel WR, and the fuel pump 1 丨 8 can be arranged at the fuel tank 3 4 A. Deeper position. That is to say, although the central portion 3 4 c of the fuel tank 3 4 a is relatively shallow due to the arrangement above the rear wheel WR, the fuel pump 1 1 8 is arranged on one of the left and right sides of the fuel tank 3 4 A. The fuel pump can be installed] 18 at a deeper position of the fuel tank 3 4 A. On the left and right sides of the fuel tank 3 4 A (the right side part 34R in this sinus embodiment) is provided. The fuel hose 132 and the return hose 133 extending from the fuel pump 1 1 8 side pass through the gap 3 5 between the rear part of the storage box 3 5 A located in front of the fuel tank 34A, the fuel hose] 3 2 and The return hose 1 3 3 ′ is bent and arranged on the rear side of the storage box 3 5 A to open one side (left side in this embodiment) of the above-mentioned left-right direction into a slightly u-shape. Thereby, even if the storage box 3 5 A is in front of the fuel tank 3 4 A, it is possible to avoid the fuel hose] 3 2 and the return hose] 3 3 from bending greatly, and letting it bend slightly, and it can be smooth. Ground fuel hose] 3 2 -26- (23) (23) 200415059 and return hose 1 3 3. On the upper wall portion of the fuel tank 3 4 A in a plurality of positions around the pump mounting portion 1 1 9, a seat cushion load supporting position capable of supporting the vehicle seat cushion 36 is set, even if the vehicle is driven by a large load. When the seat cushion 36 is sunk, the load of the passenger seat cushion 36 can be supported on the upper wall of the fuel tank 3 4 A at a plurality of positions around the pump mounting portion Π 9 and the passenger seat cushion can be suppressed. The deformation of 36 can prevent the load from the seat cushion 36 on the passenger side from acting on the housing 13 8 °. Fig. 19 shows a second embodiment of the present invention. The pump mounting portion 1 1 9 and the fuel pump PU 1 1 8 is disposed on the front of one of the left and right sides of the fuel tank 3 4 B (left side in this embodiment), and on the other side of the left and right of the storage tank 3 5 B (in the embodiment) disposed in front of the fuel tank 3 4 B The right side in this embodiment) is the rear end, and is provided with a hose 1 3 2, 1 3 3 extending from the fuel pump 1 1 8 side through the front of the fuel tank 3 4 B and the storage box 3 5 B The gap between the rear portions is 157 °. In the second embodiment, the same effect as the first embodiment can be achieved. FIG. 20 shows a third embodiment of the present invention. A pump mounting portion Π 9 / is provided on a rear upper wall portion of a central portion in the left-right direction of the fuel tank 34C disposed in front of the storage box 35C, and is used for housing. The upper end of the fuel pump 1 1 8 in the fuel tank 3 4 C is a casing 1 3 8-covering the pump 上方 mounting portion U 9 / from above. At the front end of one of the storage boxes 3 5 C in the left-right direction, a fuel hose 132 extending from the fuel pump 118 side and a return soft -27- (24) (24) 200415059 tube are provided. 3 3 Through the gap 1 5 8 with the rear of the fuel tank 3 4 C, the fuel hose] 3 2 and the return hose 1 3 3 are bent and configured to open the other side (right side in this embodiment) in the left-right direction. Slightly U-shaped. The embodiments of the present invention described above, the present invention is not limited to the above embodiments, and various design changes can be made without departing from the scope of the claims of the present invention. [Effects of the Invention] According to the first invention above, even if the connection portion to the fuel pump is disposed on the Kuriura mounting portion, interference with the passenger seat cushion can be prevented and the height of the passenger seat cushion can be increased. Set the degrees of freedom. Furthermore, when the fuel tank is to be fueled and the passenger seat cushion is opened, the connection portion to the fuel pump can be protected, and an excellent appearance can be obtained. According to the second invention, a special member for fixing the case to the tank side is not required, and the number of parts can be reduced. According to the third invention, special parts for mounting the housing are not required, the number of parts can be reduced, and the housing can be supported sturdy. According to the fourth invention, the fuel pump can be arranged at a deeper position in the fuel tank, and the hose can be smoothly arranged. Invented by Table 5 ', it is possible to suppress the deformation of the seat cushion for riding, and to prevent the load from the side of the seat cushion for riding from being applied to the casing. [Brief Description of Drawings] Fig. 1 is an overall side view of a locomotive according to the first embodiment. -28-(25) (25) 200415059 Figure 2 is a perspective view of the center portion of the locomotive in the front-rear direction with the vehicle body casing removed. Figure 3 is a side view of the engine and the intake system. Fig. 4 is an enlarged cross-sectional view taken along the line 4-4 in Fig. 3. Fig. 5 is an enlarged view of a 5-terminal view of Fig. 3; Fig. 6 is a sectional view taken along line 6-6 in Fig. 5. Fig. 7 is a rear view of the air filter viewed from the direction of the 7th end of Fig. 3; Fig. 8 is a sectional view taken along line 8-8 in Fig. 7. FIG. 9 is a 9-end view of FIG. 3. FIG. 10 is a plan view of the intake pipe and the fuel injection valve. FIG. 11 is a cross-sectional view taken along line 1 1 to 11 of FIG. 10. Fig. 12 is a longitudinal sectional view of the rear portion of the locomotive. Fig. 13 is a sectional view taken along the line 1 3-1 3 in Fig. 12. Fig. 14 is a sectional view taken along the line 14-14 of Fig. 13; Fig. 15 is an exploded perspective view of the fuel tank, fuel pump, and casing. Fig. 16 is an enlarged sectional view taken along lines 16-16 of Fig. 13. Fig. 17 is a sectional view taken along the line 17-17 in Fig. 16; Fig. 18 is an enlarged cross-sectional view taken along line 18-18 in Fig. 13. Fig. 19 is a sectional view corresponding to Fig. 13 of the first embodiment. FIG. 20 is a plan view of an oil tank and a storage box according to the third embodiment. [Illustration of drawing number] -29-(26) (26) 200415059 2 0: Body frame 3 4 A, 3 4 B, 34C: Fuel tank 3 5 A, 3 5 B: Storage box 3 6: Car seat cushion 1 1 3: Bracket] 1 8: Fuel pump 1 1 9, 1 1 9 /: Pump mounting part 1 3 2: Fuel hose 1 3 3: Return hose 1 3 5, 1 5 7: Notch 13 8 , 1 3 8 /: Housing WR: Rear wheel