1237092 (1) 玖、發明說明 【發明所屬之技術領域】 本發明是關於機車等的小型車輛的燃料配管構造，以 引擎與用來將引擎的輸出變速來將其傳達到後輪的變速器 所構成且在後部軸支承著上述後輪的動力單元的前部，是 可上下擺動地被支承在車體框架，在該車體框架的前後方 向上’在與引擎分隔的位置，將油箱搭載於車體框架，將 來自於將油箱的燃料汲起的燃料栗浦的燃料加以導引的燃 料軟管，是被連接在引擎所附設的燃料噴射閥的小型車 輛，是關於該小型車輛的燃料配管構造的改良。 【先前技術】 用來將從燃料泵浦排出的燃料導引至燃料噴射閥的燃 料軟管’由於需要要求其耐壓性，所以作成有較高的剛 性’迨種燃料軟管，對於_曲的強度較弱。因此，習知的 構造是將燃料泵浦配置在引擎側，讓燃料泵浦及燃料噴射 閥之間的燃料軟管不會彎曲（例如參照專利文獻。 〔專利文獻1〕 日本特開2 0 0 〇 — 6 4 9 2 5號公報 【發明內容】 〔發明欲解決的課題] 在上述的將燃料泵浦配置在引擎側的構造中，可擺動 (3) 1237092 k §1及引擎之間的部分會被扭轉，可以避免讓燃料軟管彎 ®形’相對於扭轉的燃料軟管的強度是較相對於彎曲的 % ®更咼’所以可以提昇燃料軟管的耐久性。 第2發明，是針對上述第1發明的構造，用來保持上 述燃料軟管的靠近上述引擎的部分的第二箍位器，是被固 定在上述引擎側，在第一及第二箍位器之間，上述燃料軟 管是配置成彎曲向車體框架的左右方向；藉由這種構造， 藉由第二箍位器，可以提高燃料軟管朝向車體框架的左右 方向的彎曲配置精度，並且可防止在燃料軟管朝向燃料噴 射閥的連接部產生彎曲變形。 第3發明，是針對上述第2發明的構造，上述第一及 第二箍位器，是分開配置在朝前後延伸的車體中心線的左 右兩側，藉由這種構造，則可將在燃料軟管的第一及第二 箍位器之間的長度設定得較長，藉此，則可確實地抑制彎 曲負荷施加在燃料軟管的情形，可更提昇燃料軟管的耐久 性。 第4發明’是針封上述第3發明的構造，上述第一及 第二箍位器之間的上述燃料軟管，是被配置成：不管是來 自於哪一個箍位器都是朝向車體框架的左右方向同一側延 伸，藉由這種構造’則可將在燃料軟管的第一及第二箍位 器之間的長度設定得更長，則可更提昇燃料軟管的耐久 性。 第5發明，是針對上述第1、2、3或4發明的構造， 上述燃料軟管是作成多層高壓型，藉由這種構造，可以增 (4) 1237092 加燃料軟管的強度’有助於提昇燃料軟管的耐久性。 【實施方式】 以下，根據附圖所示的本發明的一實施例來說明本發 明的實施方式。 第1圖〜第6圖是顯示本發明的一實施例，第丨圖是 速克達型機車的側面圖’第2圖是省略車體外殼的狀態的 第1圖的2端視圖，第3圖是第2圖的3端視圖，第4圖 是第2圖的主要部分放大圖，第5圖是燃料軟管的局部缺 口側面圖，第6圖是因應動力單元的搖動的燃料軟管的動 作狀態的說明圖。 首先在第1圖及第2圖，小型車輛的速克達型機車的 車體框架1 1，是具備有：從可轉向地支承用來軸支承前 輪W F的前叉1 4的頭管1 5朝後下方延伸的下管1 6、從該 下管1 6的上部以較該下管1 6更和緩的傾斜角度向後下方 延伸的上管1 7、前端部連接設置在上管1 7的後端部，朝 後上方延伸且後端互相連結的左右的一對後管〗8、1 8、 以及前端部連結在上述下管1 6的下端部，且後端是連接 設置在上述兩後管1 8、1 8的中間部的左右一對的低管 1 9、1 9 ;兩低管1 9、1 9，從側面來看是彎曲成朝上方開 啓的略U字型。 在上述車體框架1 1的前後方向中間部，是可上下擺 動地支承著動力單元P的前部，該動力單元P是以：使氣 缸軸線朝前上方傾斜的引擎E、以及將該引擎E的輸出進 (5) 1237092 行無段變速來將其傳達到後輪WR的無段變速器Μ所構 成’上述後輪WR是被軸支承在動力單元ρ的後部，在車 體框架1 1的後端部與上述動力單元ρ之間設置有後避震 單元20。 合倂參照第3圖，在上述兩後管1 8、1 8與上述低管 1 9、1 9的連設部，是分別固定安裝著上部托架2 2....... 另一方面，在引擎Ε的曲軸箱22的上面部，是固定安裝 著左右的一對下部托架23……，引擎吊架24的兩端部是 可擺動地被支承在上部托架2 1……，而在引擎吊架24則 是可擺動地支承著上述兩下部托架2 3....... 在後輪WR的左側的無段變速器μ的上方，是配置 有以該無段變速器Μ所支承的空氣濾淸器2 5，以該空氣 減淸器25所淨化的空氣會經由進氣管26而連接到節流閥 主體27，該節流閥主體27，是經由彎曲爲略^字型的進 氣連接管28，在沿著引擎Ε的左右方向的略中心位置被 連每到熱缸頭2 9。並且在進氣連接管2 8的上部，曰嵌a 寄燃料噴射閥3 0的下部，在具有通到燃料噴射閥3 〇的燃 料通路3 1 a且被鎖裝在上述進氣連接管2 8的夾具3丨、與 上述進氣連接管2 8之間保持著燃料噴射閥3 〇。 上述引擎吊架24，是作成允許將進氣管26與節流閥 主體27配置在該引擎吊架24的中央部上方，中央部是作 成下方凹陷的略U字型。 在車體框架1 1的前後方向，在與上述引擎E分隔白勺 ^置，在車體框架〗1是搭載了油箱3 2，在該實施例中， (6) 1237092 油箱3 2，是被配置在以下管丨6 '上管1 7、與兩低管1 9、 1 9所圍繞的部分的前部，而被支承在兩低管1 9、1 9。也 就是說，油箱3 2，是在沿著車體框架1 1的前後方向的與 上述引擎E在前方分隔的位置被搭載於車體框架！ i。 上述車體框架 η、動力單元Ρ的一部分以及油箱 32，是與車體框架11 一起被構成車體13的合成樹脂製的 車體外殼12所覆蓋，該車體外殼12，是由：覆蓋車體框 架Π的前部的前外殼3 3、連接設置在該前外殻3 3的兩 側的左右的一對腿部護罩3 4.......分別連接於腿部護罩 34......的下端的左右的一對腳踏板 3 5.......在兩腳踏板 3 5......之間朝上方***來覆蓋油箱3 2的地板隧道部3 6、 從上述兩腳踏板3 5......的外側緣部向下方垂下的裙部 37.......以及連接於裙部3 7……，腳踏板3 5……，與地 板隧道部3 6來覆蓋車體框架11的後部的後外殻3 8所構 成。 在後外殼3 8上，是配置了以上述兩後管1 8、1 8所支 承的雙人乘坐式的座墊3 9。 在油箱3 2，是內置有：過濾器4 0、以及經由該過濾 器4 〇來將油箱3 2內的燃料汲起的燃料泵浦4 1，其中一 端連接在該燃料泵浦4 1的燃料軟管42的另一端，是經由 上述夾具3 1而連接在上述燃料噴射閥3 0。 在第4圖，在車體框架1 1，是固定著用來保持燃料 軟管42的中間部的第一箍位器43，在該實施例中，左右 一對的後管]8、1 8中，在朝向機車的行進方向前方的狀 -10 - (7) 1237092 態，在位於左側的後管1 8的前部所設置的支承板 鎖裝著第一箍位器43。 並且在燃料噴射閥3 0與第一箍位器4 3之間， 管4 2是被配置成朝向車體框架1 1的左右方向彎曲 將用來保持著燃料軟管4 2的靠近引擎E的部分的 位器4 5鎖裝在支承腕部4 6，以將第二箍位器4 5 引擎E側。支承腕部4 6的基端部，是與上述夾具 被鎖裝在進氣連接管28，在該支承腕部46的前端 裝著上述第二箍位器45。 在第5圖’上述燃料軟管42，是由：例如氟 所構成的內層部42a、藉由腈橡膠所成型用來覆蓋 層部42a的中層部42b、由聚酯所構成並且用來覆 中層部42b的網絡部42c、以及由聚環氧氯丙烷所 最外層的外層部4 2 d所構成的多層高壓型構造。該 管42的其中一端，是被接合在連接於油箱32的 4 7，對連接器4 7的燃料軟管4 2的接合是藉由第一 48來維持。而燃料軟管42的另一端是被接合在連 料噴射閥30的夾貞31，對夾具3】的燃料軟管42 是藉由第一箍位器4 9來維持。 L:料軚g 4 2，是以例如由乙烯丙烯橡膠所 護軟管50所覆蓋的構造，以第二箍位器μ連 3 1的狀態的燃料軟管4 ?，早作 年人吕42，疋其中一端側插通 管5 〇 ’ ί皮保5蒦軟管5 0突屮的燃*、丨仏 υ大丨W燃枓軟管4 2的其 以第一箍位器4 8被連接到連接器4 7。 4 4，是 燃料軟 ，藉由 第二箍 固定在 3 1 一起 部是鎖 類橡膠 上述內 蓋上述 構成的 燃料軟 連接器 箍位器 接於燃 的接合 成的保 在夾具 保護軟 一端會 (8) 1237092 第一箍位器43，是將安裝板部52 一體地連接設置_ 圓筒部5 1所構成的構造，在圓筒部5 ；!，是安裝著貫穿該 圓筒部5 1的圓筒狀的緩衝橡膠5 3，該緩衝橡膠5 3在兩 端具有抵接於該圓筒部5 1的兩端的凸緣5 3 a、5 3 a。而籍 由將覆蓋著燃料軟管42的保護軟管5 0插通到上述緩衝椽 膠5 3 ’來以第一箍位器4 3保持燃料軟管4 2，在上述安裝 板部5 1所設置的插通孔5 4，是插通著用來將第一箍位器 4 3鎖裝在車體框架11的螺栓5 5。 第二箍位器45，是具有與上述第一箍位器43相同的 構造，是經由緩衝橡膠5 3及保護管5 0來以第二箍位器 4 5保持著燃料軟管4 2，藉由螺栓5 6來將第二箍位器4 5 鎖裝在支承腕部4 6。 並且第一及第二箍位器43、45是分開配置在朝前後 方向延伸的車體中心線B C的左右兩側，第一及第二箍位 器43、45間的燃料軟管42及保護軟管50，是配置成： 不管是來自於哪一個箍位器4 3、4 5，都是朝車體框架11 的左右方向同一側，在該實施例中，在朝向機車的行進方 向的前方的狀態，是朝向右側延伸。也就是說，第一及第 二箍位器4 3、4 5間的燃料軟管4 2，是彎曲配置成向車體 框架1 1的右側突出。 引擎E ’其左右方向的略中心位置也就是燃料噴射閥 30的配置位置，從上述車體中心線BC起算與第一簾位器 4 3是在同一側’也就是說是偏置在左側，是被支承在車 體框架]1，利用這種配置，有利於確保燃料軟管4 2的擺 -12 - (9) 1237092 動長度。 接下來針對實施例的作用來加以說明，燃料泵浦 4 1，是在車體框架1 1的前後方向與引擎E分隔的位置被 內置在車體框架1 1所搭載的油箱3 2，由於燃料泵浦4 1 不是安裝在動力單元P，所以可以讓動力單元P小型化， 且提昇動力單元P的組裝性。 在車體框架1 1，是固定著用來保持燃料軟管4 2的中 間部的第一箍位器4 3，在引擎E所附設的燃料噴射閥3 0 與第一箍位器43之間，燃料軟管42是朝向車體框架1 1 的左右方向彎曲配置。因應於動力單元P在第6圖（a ) 所示的上方位置與第6圖（b )所示的下方位置之間上下 擺動的動作’燃料軟管4 2中的第一箍位器4 3與引擎E之 間的部分’會如第6圖（b )的箭頭所示地扭轉。於是可 以避免由於動力單元p的上下擺動而在燃料軟管42產生 譽曲變形’燃料軟管42相對於扭轉的強度是比相對於彎 曲的強度更筒，與彎曲變形的構造相比，可以更提昇燃料 軟管42的耐久性。 用來保持燃料軟管4 2的靠近引擎E的部分的第二箍 位器45是被固定在引擎E側，在第一及第二箍位器43、 4 5之間’燃料軟管4 2是朝向車體框架1 1的左右方向彎 曲配置，所以錯由第二箍位器4 5，可以提高朝向車體框 木1 1的左右方向彎曲配置的燃料軟管4 2的精確度，並且 以封燃料11貝射閥3 〇的燃料軟管4 2的連接部，來防止在燃 料軟管42產生彎曲變形。1237092 (1) 发明 Description of the invention [Technical field to which the invention belongs] The present invention relates to a fuel piping structure of a small vehicle such as a locomotive, and is composed of an engine and a transmission for shifting the output of the engine to the rear wheels. The front part of the power unit that pivotally supports the rear wheels is supported on the vehicle body frame so that it can swing up and down. The fuel tank is mounted on the vehicle in a position separated from the engine in the front-rear direction of the body frame. The body frame, a fuel hose that guides the fuel from the fuel pumped up from the fuel tank in Kuriura, is a small vehicle connected to a fuel injection valve attached to the engine, and relates to the fuel piping structure of the small vehicle. Improvement. [Prior art] A fuel hose used to guide fuel discharged from a fuel pump to a fuel injection valve 'is required to have high pressure resistance, so it has a high rigidity', which is a fuel hose. The intensity is weak. Therefore, the conventional structure is to arrange the fuel pump on the engine side so that the fuel hose between the fuel pump and the fuel injection valve is not bent (for example, refer to Patent Literature. [Patent Literature 1] Japanese Patent Laid-Open No. 2 0 0 〇— 6 4 9 2 5 [Summary of the Invention] [Problems to be Solved by the Invention] In the above-mentioned structure in which the fuel pump is arranged on the engine side, it can swing (3) 1237092 k §1 and the part between the engine It can be twisted, which can prevent the fuel hose from being bent. The shape of the fuel hose relative to the twisted fuel hose is greater than that of the twisted fuel hose. Therefore, the durability of the fuel hose can be improved. The second invention is aimed at In the structure of the first invention, the second clamp for holding the fuel hose close to the engine is fixed on the engine side, and the fuel is soft between the first and second clamps. The tube is configured to bend to the left and right direction of the vehicle body frame. With this structure, the second clamp can improve the accuracy of the bending arrangement of the fuel hose toward the left and right direction of the vehicle body frame, and prevent the fuel from being soft. Tube orientation The connection part of the fuel injection valve is deformed. The third invention is the structure according to the second invention. The first and second clamps are separately arranged on the left and right sides of the centerline of the vehicle body extending forward and backward. With this structure, it is possible to set the length between the first and second clamps of the fuel hose to be long, and thereby, it is possible to surely suppress the bending load from being applied to the fuel hose, and The durability of the fuel hose is further improved. The fourth invention 'is a structure for pin-sealing the third invention, and the fuel hose between the first and second clamps is arranged so that it does not matter where it comes from Each of the clamps extends toward the same side of the vehicle body frame in the left-right direction. With this structure, the length between the first and second clamps of the fuel hose can be set longer. The durability of the fuel hose is further improved. The fifth invention is directed to the structure of the above-mentioned first, second, third, or fourth invention. The above-mentioned fuel hose is a multilayer high-pressure type. With this structure, (4) 1237092 can be increased. The strength of the fueling hose 'helps boost fuel Durability of the tube. [Embodiment] Hereinafter, an embodiment of the present invention will be described with reference to an embodiment of the present invention shown in the accompanying drawings. Figs. 1 to 6 show an embodiment of the present invention. It is a side view of a speed locomotive. 'The second figure is a second end view of the first figure in a state where the vehicle body shell is omitted, the third figure is a third end view of the second figure, and the fourth figure is a main view of the second figure. Partially enlarged view, FIG. 5 is a partial cutaway side view of the fuel hose, and FIG. 6 is an explanatory diagram of the operating state of the fuel hose in response to the swing of the power unit. First, in FIGS. 1 and 2, a small vehicle The body frame 11 of the scooter locomotive is provided with a head pipe 15 that is steerably supported from a front fork 14 that pivotally supports the front wheel WF, and a lower pipe 16 that extends rearward and downward. The upper part of the upper part of the pipe 16 extends rearward and downward at a gentler inclined angle than the lower pipe 16. The front end part 7 is connected to the rear end part of the upper pipe 17 and extends rearward and upward and the rear ends are connected to each other. A pair of left and right rear tubes [8, 18], and a front end portion are connected to the lower end portion of the lower tube 16 above, and the rear end The left and right pair of low pipes 19 and 19 provided at the middle of the two rear pipes 18 and 18 are connected; the two low pipes 19 and 19 are bent from the side to slightly open upward. Font. The middle portion of the body frame 11 in the front-rear direction is a front portion that supports a power unit P that can swing up and down. The power unit P is an engine E that tilts a cylinder axis forward and upward, and the engine E The output of (5) 1237092 is composed of a stepless transmission M that transmits stepless transmission to the rear wheel WR. The above-mentioned rear wheel WR is supported by the rear of the power unit ρ and is rearward of the body frame 11 A rear suspension unit 20 is provided between the end portion and the power unit ρ described above. Combined with reference to FIG. 3, the upper bracket 2 is fixedly installed in the connecting portion of the two rear pipes 18, 18 and the low pipes 19, 19, respectively. 2. Another On the upper side of the crankcase 22 of the engine E, a pair of left and right lower brackets 23 are fixedly mounted, and both ends of the engine hanger 24 are swingably supported by the upper bracket 2 1... The engine suspension 24 supports the above two lower brackets 2 swingably. 3.... Above the stepless transmission μ on the left side of the rear wheel WR, the stepless transmission is arranged. The air filter 25 supported by the M, and the air purified by the air reducer 25 is connected to the throttle body 27 through the intake pipe 26, and the throttle body 27 is slightly bent by bending. The shaped intake connection pipe 28 is connected to the hot cylinder head 29 at a slightly center position along the left-right direction of the engine E. In the upper part of the intake connection pipe 28, a lower part of the fuel injection valve 30 is fitted, and a fuel passage 3 1 a that leads to the fuel injection valve 30 is locked in the intake connection pipe 2 8 The fuel injection valve 30 is held between the clamp 3 and the intake connection pipe 28. The engine hanger 24 is formed in a slightly U-shape to allow the intake pipe 26 and the throttle body 27 to be arranged above the central portion of the engine hanger 24, and the central portion is recessed downward. In the front-rear direction of the vehicle body frame 11, it is placed apart from the engine E, and the vehicle body frame 1 is equipped with a fuel tank 3 2. In this embodiment, (6) 1237092 fuel tank 3 2 is It is arranged at the front of the part surrounded by the lower tube 6 ′ upper tube 17 and the two lower tubes 19 and 19, and is supported by the two lower tubes 19 and 19. That is, the fuel tank 3 2 is mounted on the vehicle body frame at a position separated from the engine E in the forward direction along the front-rear direction of the vehicle body frame 1 1! i. The body frame η, a part of the power unit P, and the fuel tank 32 are covered together with the body frame 11 by a body shell 12 made of synthetic resin constituting the body 13. The body shell 12 is formed by: Front housing 3 at the front of the body frame 3 3. A pair of left and right leg shields 3 provided on both sides of the front housing 33 are connected to the leg shields 34, respectively. A pair of left and right foot pedals 3 at the lower end of ... 5 .... bulge upward between the two foot pedals 3 5 ... to cover the floor of the fuel tank 3 2 The tunnel portion 36, the skirt portion 37 that hangs downward from the outer edge portions of the two pedals 3, 5 ..., and the skirt portion 3, 7 ..., the pedals 3 5... Is constituted by a rear shell 38 covering the rear portion of the vehicle body frame 11 with the floor tunnel portion 36. The rear case 38 is provided with a two-person seat cushion 39 supported by the two rear pipes 18 and 18. A fuel tank 32 is equipped with a filter 40 and a fuel pump 41 for drawing fuel in the fuel tank 32 through the filter 40, and one end is connected to the fuel of the fuel pump 41. The other end of the hose 42 is connected to the fuel injection valve 30 via the clamp 31. In FIG. 4, a first hoop 43 is fixed to the vehicle body frame 11 to hold the middle portion of the fuel hose 42. In this embodiment, a pair of left and right rear pipes] 8, 1 8 In the state -10-(7) 1237092 facing forward in the direction of travel of the locomotive, the first clamp 43 is locked on a support plate provided at the front of the rear pipe 18 on the left. And between the fuel injection valve 30 and the first clamp 43, the pipe 42 is configured to bend toward the left and right direction of the vehicle body frame 11 and will be used to keep the fuel hose 42 close to the engine E Part of the positioner 4 5 is locked on the supporting wrist portion 4 6 to place the second hoop 4 5 on the engine E side. The base end portion of the support arm portion 46 is locked to the intake connection pipe 28 with the jig, and the second clamp 45 is attached to the front end of the support arm portion 46. The fuel hose 42 shown in FIG. 5 is composed of, for example, an inner layer portion 42a made of fluorine, a middle layer portion 42b formed by covering with the nitrile rubber to cover the layer portion 42a, and a cover made of polyester and used for covering. The network portion 42c of the middle layer portion 42b and the multilayer high-pressure type structure constituted by the outer layer portion 4 2 d of the outermost layer of polychlorohydrin. One end of the tube 42 is joined to the fuel tank 32 connected to the fuel tank 32, and the fuel hose 42 connected to the connector 47 is maintained by the first 48. The other end of the fuel hose 42 is a clamp 31 which is connected to the feed injection valve 30. The fuel hose 42 of the clamp 3] is maintained by the first clamp 49. L: Material 軚 g 4 2 is a fuel hose 4 是以 with a structure of being covered by a hose 50 protected by ethylene propylene rubber, in the state of a second hoop μ connected to 3 1. The one end side is inserted through the tube 5 〇 ′ 皮皮 5 蒦 tube 5 0 屮 屮, 仏 大 υ 丨 W 大 大 hose 4 2 which is connected by the first clamp 4 8 To connector 4 7. 4 4 is fuel soft. It is fixed to 3 by the second hoop. The fuel soft connector hoop with the above structure is a lock rubber and the inner cover is connected to the combustor. 8) 1237092 The first clamp 43 is a structure in which the mounting plate portion 52 is integrally connected to the cylindrical portion 51. The cylindrical portion 5 is installed in the cylindrical portion 5;! A cylindrical buffer rubber 5 3 has flanges 5 3 a and 5 3 a at both ends that abut the both ends of the cylindrical portion 51. By inserting the protective hose 50 covering the fuel hose 42 into the buffer rubber 5 3 ′, the fuel hose 4 2 is held by the first clamp 4 3, and the fuel pipe 42 is held in the mounting plate portion 51. The insertion hole 5 4 is provided through the bolt 55 used to lock the first clamp 4 3 to the vehicle body frame 11. The second clamp 45 has the same structure as the first clamp 43 described above. The second clamp 45 holds the fuel hose 4 2 through the buffer rubber 5 3 and the protection tube 50. The second clamp 4 5 is locked to the supporting arm portion 4 6 by a bolt 5 6. In addition, the first and second clamps 43 and 45 are separately arranged on the left and right sides of the vehicle body centerline BC extending in the front-rear direction, and the fuel hose 42 and the protection between the first and second clamps 43 and 45 are provided. The hose 50 is configured such that, regardless of which of the clamps 4 3, 4 5 is from the same side in the left-right direction of the vehicle body frame 11, in this embodiment, it is forward of the direction of travel of the locomotive. The state is extended to the right. That is, the fuel hoses 42 between the first and second clamps 4 3, 4 and 5 are bent and arranged so as to protrude to the right of the vehicle body frame 11. The slightly center position of the engine E in the left-right direction is also the position of the fuel injection valve 30. From the centerline BC of the vehicle body, it is on the same side as the first curtain 43, that is, it is offset to the left. It is supported on the body frame] 1. With this configuration, it is helpful to ensure the swing length of the fuel hose 4 2-(9) 1237092. Next, the function of the embodiment will be described. The fuel pump 41 is built into the fuel tank 3 2 mounted on the vehicle body frame 1 1 at a position separated from the engine E in the front-rear direction of the vehicle body frame 1 1. Since the pump 41 is not mounted on the power unit P, the power unit P can be miniaturized and the assemblability of the power unit P can be improved. A first hoop 4 3 is fixed to the vehicle body frame 11 to hold the middle portion of the fuel hose 42. Between the fuel injection valve 3 0 and the first hoop 43 attached to the engine E The fuel hose 42 is bent and arranged in the left-right direction of the vehicle body frame 1 1. In response to the power unit P swinging up and down between the upper position shown in FIG. 6 (a) and the lower position shown in FIG. 6 (b), 'the first clamp 4 in the fuel hose 4 2 The portion 'from engine E' is twisted as shown by the arrow in Fig. 6 (b). Therefore, it is possible to prevent the fuel pipe 42 from being deformed due to the up and down swing of the power unit p. The strength of the fuel hose 42 with respect to torsion is more cylindrical than the strength with respect to bending, and it can be more The durability of the fuel hose 42 is improved. The second clamp 45 for holding the portion of the fuel hose 42 close to the engine E is fixed on the engine E side, and the fuel hose 4 2 is between the first and second clamps 43 and 45. It is bent and arranged toward the left and right direction of the vehicle body frame 11. Therefore, the second hoop 45 can improve the accuracy of the fuel hose 4 2 that is bent and arranged toward the left and right direction of the body frame 1 1. The connection portion of the fuel hose 42 of the fuel injection valve 30 is sealed to prevent bending deformation in the fuel hose 42.
1237092 (10) 第一及第一箍位器43、45，是分開配置在車體中心 線BC的左右兩側，所以可以將燃料軟管42在第一及第 二箍位器4 3、4 5之間的長度設定得較長，藉此，可更確 實地抑制施加在燃料軟管4 2的彎曲負荷，可更提昇燃料 軟管42的耐久性。 第一及第二箍位器4 3、4 5間的上述燃料軟管4 2，不 管是來自於哪一個箍位器4 3、4 5都是配置成朝向車體框 架1 1的左右方向同一側延伸，所以可以將燃料軟管42在 第一及第二箍位器4 3、4 5之間的長度設定得較長，所以 可以將燃料軟管4 2在第一及第二箍位器4 3、4 5之間的長 度設定得更長，可更提昇燃料軟管4 2的耐久性。 並且由於燃料軟管42是作成多層高壓型，所以可增 大燃料軟管42的強度，有助於提昇用來導流高壓燃料的 燃料軟管42的耐久性。 以上，雖然是說明本發明的實施例，可是本發明並不 限定於上述實施例，只要不脫離申請專利範圍記載的本發 明’可以進行種種的設計變更。 〔發明效果〕 藉由以上所述的第1發明，則可讓動力單元小型化且 提昇動力單元的組裝性，藉由動力單元P的上下擺動，可 避免產生彎曲變形而產生扭轉，則可提升燃料軟管的耐久 性。 藉由第2發明，可以提高朝向車體框架】]的左右方 ► 14 - 12370921237092 (10) The first and first clamps 43, 45 are separately arranged on the left and right sides of the centerline BC of the vehicle body, so the fuel hose 42 can be placed on the first and second clamps 4 3, 4 By setting the length between 5 long, the bending load applied to the fuel hose 42 can be more reliably suppressed, and the durability of the fuel hose 42 can be further improved. The fuel hoses 4 2 between the first and second clamps 4 3 and 4 5 are arranged to be the same in the left-right direction of the vehicle body frame 11 regardless of which of the clamps 4 3 and 4 5 comes from. The side extends, so the length of the fuel hose 42 between the first and second clamps 4, 3, 4, 5 can be set longer, so the fuel hose 42 can be placed between the first and second clamps The length between 4 3 and 4 5 is set longer, which can further improve the durability of the fuel hose 4 2. In addition, since the fuel hose 42 is formed as a multi-layer high-pressure type, the strength of the fuel hose 42 can be increased, and the durability of the fuel hose 42 for guiding high-pressure fuel can be improved. As mentioned above, although the embodiments of the present invention have been described, the present invention is not limited to the above-mentioned embodiments, and various design changes can be made without departing from the present invention described in the scope of the patent application. [Effects of the Invention] According to the first invention described above, the power unit can be miniaturized and the assemblability of the power unit can be improved, and the power unit P can be lifted up and down to avoid bending deformation and torsion. Fuel hose durability. With the second invention, it is possible to increase the direction toward the body frame]] left and right ► 14-1237092
之間的長度設定得更長，可更提昇燃料軟管的耐久性。 之間的長度設定得較長 料軟管的彎曲負荷，可 藉由第4發明， 藉由第5發明，可增大燃料軟管的強度，有助於提昇 用來導流高壓燃料的燃料軟管的耐久性。 【圖式簡單說明】 第1圖是速克達型機車的側面圖。 第2圖是省略車體外殼的狀態的第1圖的2端視圖。 第3圖是第2圖的3端視圖。 第4圖是第2圖的主要部分放大圖。 第5圖是燃料軟管的局部缺口側面圖。 第6圖是因應動力單元的搖動的燃料軟管的動作狀態 的說明圖。 〔圖號說明〕 1 1 :車體框架 3 〇 :燃料噴射閥 J 2 ·油相 - 15- (12) 1237092 41 :燃料軟管 4 2 :燃料軟管 43 :第一箍位器 4 5 :第二箍位器 E :引擎 Μ :無段變速器 Ρ :動力單元 WR :後輪The longer length is set to improve the durability of the fuel hose. The length of the gap is set to be long. The bending load of the hose can be increased by the fourth invention and the fifth invention by increasing the strength of the fuel hose and helping to improve the fuel softness for guiding high-pressure fuel. Tube durability. [Brief description of the drawings] Fig. 1 is a side view of a speed locomotive. Fig. 2 is a two-end view of Fig. 1 in a state where the vehicle body shell is omitted. FIG. 3 is a 3-end view of FIG. 2. FIG. 4 is an enlarged view of a main part of FIG. 2. Fig. 5 is a partially cutaway side view of the fuel hose. Fig. 6 is an explanatory diagram of the operating state of the fuel hose in response to the swing of the power unit. [Illustration of drawing number] 1 1: Body frame 3 〇: Fuel injection valve J 2 · Oil phase-15- (12) 1237092 41: Fuel hose 4 2: Fuel hose 43: First clamp 4 5: Second Clamp E: Engine M: Stepless Transmission P: Power Unit WR: Rear Wheel