200836962 九、發明說明： 【發明所屬之技術領域】 其包括一車身 一安裝於該車 本發明係關於一種二輪或三輪機動車翻， 骨架、一安裝於該車身骨架上之引擎單元及 身骨架上之座椅。 【先前技術】 在-些狀況下’為上車及τ車時之較平穩效能之目的， 此類型之三輪或三輪機動車輛在車輛後部且與供騎乘者用 之前座分開而設置供乘客用之後座。舉例而言，在專利文 獻艸，建議某一結構’其中藉由使前支柱與後支柱彼此 分開設置而纟冑支柱與後支柱m 一供腳部用之空 間，從而在車身骨架上之前後方向±支揮前座與後座。 [專利文獻 l]JP-A-Hei 4-358979 【發明内容】 [待由本發明解決之問題] 順便提及，習知二輪或三輪機動車輛已採用全部引擎單 凡位於後座下方之結構。因此，構成引擎單元之引擎體、 吸氣系統、排氣系統、後輪驅動系統及其類似物自乘客之 腳部附近至後座下方之區域而集中起來。又，由於後座位 於與前座分開處，因而乘客之騎乘位置與正常位置相比位 於更靠後處。結果，重量集中於車輛之後部，從而產生重 里平衡在車輛之前後方向上惡化的問題。 鑒於上述習知情況而完成本發明。本發明之一目的在於 提供二輪或三輪機動車輛，其具有前後方向上之優良重量 126883.doc 200836962 平衡同時保持-供乘客用之後座與—供騎乘者用之前座分 開而位於一車身後部的結構。 刀 [解決問題之方法] 本發明針對—種包括—車身骨架、—安裝於該車身骨架 上之引擎單元及一安裝於該車身#架上之座椅的二輪或三 輪機動車輛’其特徵在於：該座椅包括—供騎乘者用之= 座及一與該前座分開位於後方之供乘客用之後座；且該引 擎單元安裝於該車身骨架上，其中該引擎單元之至少前部 位於供騎乘者用之左置腳部與右置腳部之間。 此處該引擎單元包括具有一汽缸體、一汽缸頭及一曲柄 軸箱之引擎體，以及連接至該引擎體之一吸氣系統之組 件。引擎單元之前部意謂該汽缸體、該汽缸頭以及該吸氣 系統之組件。 [本發明之效應] 根據本發明之二輪或三輪機動車輛，後座與前座分開向 後設置，且引擎單元安裝於車身骨架上，其中引擎單元之 至少一前部位於供騎乘者用之左置腳部與右置腳部之間。 因此，引擎單元之組件可自前座下方之區域至前座與後座 之間的區域而分散，從而與整個引擎單元安裝於後座下方 之狀況相比允許前後方向上之優良重量平衡。 【實施方式】 將在下文中參看所附圖式描述本發明之實施例。 圖1為說明根據本發明之第一實施例之二輪機動車輛的 視圖。本實施例中之前後方向及左右方向意謂如自處於就 126883.doc -9- 200836962 座位置中之騎乘者觀察之前後方向及左右方向。 ::式中，參考數字1指示二輪機動車輛，其包括一車 卞 在固疋狀態下安裝於該車身骨架2之引擎單元 3、一安裝於該車身骨架2之供騎乘者用之前座4及-以預 定距離與該前座4分開向後方設置之供乘客用之後座5。 車身骨架2包括—由鋼管製成之主骨架8及-與該主骨年 8整體形成之後骨架9。主骨架8以前又心可在左右方向上200836962 IX. Description of the invention: [Technical field of the invention] It comprises a vehicle body and is mounted on the vehicle. The invention relates to a two- or three-wheel motor vehicle, a skeleton, an engine unit and a body frame mounted on the body frame The seat. [Prior Art] In the case of some conditions, the three- or three-wheeled motor of this type is provided at the rear of the vehicle and separated from the front seat for the rider for passengers. After the seat. For example, in the patent document, it is proposed that a certain structure 'in which the front pillar and the rear pillar are separated from each other, and the pillar and the rear pillar m are provided for the space of the foot portion, thereby forming the front and rear directions on the vehicle body skeleton. ± The front seat and the rear seat. [Patent Document 1] JP-A-Hei 4-358979 [Disclosure] [The problem to be solved by the present invention] Incidentally, the conventional two- or three-wheeled vehicle has adopted a structure in which all the engines are located below the rear seat. Therefore, the engine body, the suction system, the exhaust system, the rear wheel drive system, and the like constituting the engine unit are concentrated from the vicinity of the passenger's foot to the area below the rear seat. Also, since the rear seat is separated from the front seat, the riding position of the passenger is located further rearward than the normal position. As a result, the weight is concentrated at the rear of the vehicle, thereby causing a problem that the balance of gravity is deteriorated in the front and rear directions of the vehicle. The present invention has been accomplished in view of the above-described conventional circumstances. One of the objects of the present invention is to provide a two- or three-wheeled motor vehicle having an excellent weight in the front-rear direction. 126883.doc 200836962 Balance while maintaining - for the passengers, the rear seat is separated from the front seat by the rider and is located at the rear of the vehicle body. structure. Knives [Method for Solving the Problem] The present invention is directed to a two- or three-wheeled motor vehicle including a body frame, an engine unit mounted on the body frame, and a seat mounted on the body frame. The seat includes a seat for the rider and a rear seat for the passenger separated from the front seat; and the engine unit is mounted on the body frame, wherein at least the front portion of the engine unit is located for riding The passenger uses the left foot and the right foot. Here, the engine unit includes an engine body having a cylinder block, a cylinder head and a crank axle box, and a component connected to an air suction system of the engine body. The front of the engine unit means the cylinder block, the cylinder head and the components of the suction system. [Effects of the Invention] According to the two- or three-wheeled motor vehicle of the present invention, the rear seat and the front seat are disposed rearwardly apart, and the engine unit is mounted on the body frame, wherein at least one front portion of the engine unit is located on the left side for the rider Between the foot and the right foot. Therefore, the components of the engine unit can be dispersed from the area under the front seat to the area between the front seat and the rear seat, thereby allowing an excellent weight balance in the front-rear direction as compared with the case where the entire engine unit is mounted under the rear seat. [Embodiment] Embodiments of the present invention will be described hereinafter with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing a two-wheeled motor vehicle according to a first embodiment of the present invention. In the present embodiment, the front and rear directions and the left and right directions mean that the rider in the position of 126883.doc -9-200836962 is in the front and rear directions and the left and right directions. In the formula, reference numeral 1 denotes a two-wheeled motor vehicle, which includes an engine unit 3 mounted on the body frame 2 in a fixed state, and a front seat for the rider mounted on the body frame 2 And a rear seat 5 for passengers which is disposed rearward from the front seat 4 by a predetermined distance. The body frame 2 includes a main frame 8 made of a steel pipe and a skeleton 9 formed integrally with the main bone year 8. The main skeleton 8 was previously in the left and right direction
Ο 移動之方式自支撐前又部6之管7向後延伸，且後骨架9自 主骨架8持續向車輛後方延伸。 主骨架具有-自頭部管7以朝向車•下方及後方之角度 延伸之傾斜部分8认_以跟隨傾斜部分以角度向下延伸 之傾斜延伸部分8b。 後骨架9具有-當向上直立時自傾斜延伸部㈣之後端 延伸之直立部分9a及-自該直立部分％向後且大體水平延 伸之水平部分9b。 又部6之下端處，且轉向把 經由一托架7a將一電池12 一前輪10可旋轉地支撐於前 手11固定於前又部6之上端處。 設置於頭部管7前方。 及氣糸統16、一排氣系 引擎單元3包括一引擎體15、 統17及一引擎驅動系18。 引擎體為-空氣冷卻4衝程？|擎，其經由前後懸掛托 架13及14而在固定狀態下懸掛於主骨架8之下部區。 安裝引擎體15，其中汽缸軸緩„ 神深a在大體水平及前後方 向上延伸。引擎體15具有一結構，並 。得，其中汽缸頭15b及一頭 126883.doc -10· 200836962 “、連接至缸體l5a的前配合面且一曲柄轴箱⑸連接 至汽缸體15a的後配合面。 在車輛見度方向上將一曲柄軸15e安放於曲柄軸箱W 中。:傳動機構（未圖示）位於曲柄轴⑸之後方且安放於曲 ' 柄軸相1 5d中。用以自傳動機構驅動出引擎功率之輸出軸 ·· l5f自曲柄軸箱15d之左侧壁在外部突出。 /引擎驅動系18在車輛寬度方向上位於左側上。引擎驅動 Γ: 系、18:有-前邊緣經支撐用以藉由曲柄軸箱15d上下擺動 之轴相18a及一安放於該軸箱18a中之驅動軸(未圖示）。此 驅動軸之前邊緣連接至輸出軸15f，且後輪19連接至驅動 軸之後邊緣。 一後緩衝墊20安置於軸箱18a之後邊緣與後骨架9之一水 平部分9b之間。後緩衝墊2〇位於穿過後輪19之旋轉軸 之中心的錯垂線之前侧處。 吸氣系統16連接於汽缸頭15b之連接（吸氣口）前方，且 I 自其向前及向上延伸。特定地，吸氣系統16具有··一吸氣 管16a，其連接至汽缸頭15b之上壁，自其向上延伸並向前 彎曲；一節氣閥體16b，其連接至該吸氣管16a之上游端開 、 口；及一淨氣機16c，其連接至該節氣閥體16b。淨氣機 ^ l6c位於節氣閥體l6b上方，且位於主骨架8之傾斜部分8a 之前邊緣下方。 排氣系統17具有··一排氣管17a，其連接至汽缸頭15b之 底壁且當沿引擎體之底部向後延伸時被定位；及一消音号 17b，其連接至排氣管17a之下游端且在車輛寬度方向上位 126883.doc 200836962 於後輪19之右側上。 自車輛側面觀察，引擎體15之最高端處之頭蓋15c的上 端15cf經安裝以位於低於連接前輪1〇之上端i〇a與後輪19之 上知19&之線處。根據此實施例之二輪機動車輛1，前輪 及後輪19在車輪尺寸上大於用於小輪機車類型機器腳踏車 之正常車輪。 前座4位於主骨架8之傾斜部分8a上方，且安裝於固定於 傾斜部分8a上之鋼管之一座椅支撐構件24a上。座椅支撺 構件24在車輛寬度方向上外部懸垂於傾斜部分仏處。座椅 支撐構件24具有以向後及向上角度延伸之左右支撐構件 24a與24a及一在車輛寬度方向上連接該等左右支撐構件 24a與24a之上端的橫向支撐構件24b。 前座4具有一緩衝墊4b位於一底板4a上且由一外板覆蓋 之結構。經由一座椅鉸鏈4c將底板4a之後端支撐於橫向支 撐構件24b上用於上下樞軸移動。一行李掛鉤2讣附著於橫 向支撐構件。行李掛鉤24c之下方為一如稍後所述用以裝 載行李之空間。 一燃料箱25安裝於主骨架8之傾斜部分“上。燃料箱乃 位於座椅支撐構件24内部及前座4下方，且由前座4自上方 盍。 一具有頂部開口之儲存箱26位於燃料箱25前方。一蓋構 件27固定於前座4之底板牦上，自前座4向前延伸，且用以 開啟並關ga儲存箱26。此蓋構件27可由—位於儲存箱26之 前端處的鎖定構件28敎。t鎖定釋放且接著前座4圍繞 126883.doc •12· 200836962 〃 / °上轉動時，儲存箱26之内部及燃料箱25之填料開 口暴露。儲存箱26可用以栽運較小物品。可經由填料開口 執行向燃料箱2 5加注燃料。 後座5位於後骨架9之一水平部分外上。後座5經由1 :於水平部分9b上之金屬薄片撐條3〇而直接安裝於水平部 :9b上。後座5位於與座椅續乎等高之位置。特定地，後 、月Γ9之水平部分9b之高度 <立置經設定以與前座4之底側幾 乎等高。座椅撐條30具有在車輛寬度方向上自水平部分外 於外部延伸之矩形U形。 扶手桿3丨固定於水平部分％上，且延伸以圍繞後座5之 、右及後侧。扶手桿3 1具有平面圖中所視之大體xj形形 式。一支撐乘客之背部的靠背32附著於扶手桿3 i。 供騎乘者用之左右置腳部34與34位於前座4下方。左右 置腳部34分別經由一腳架（未圖示）而固定於引擎體。之曲 柄軸箱15d的左右壁。每一置腳部34具有一自置腳部托架 突出之桿狀置腳部34a及一包含位於該置腳部34a上之彈性 構件之置腳部構件34b。 以此方式，對於引擎單元3,引擎體15位於左右置腳部 34與34之間，且吸氣系統16位於在左右置腳部34與34之間 所界定之區域前方。引擎驅動系18位於左右置腳部34與34 之間及上方，且向後延伸。排氣系統17位於左右置腳部34 與34之間及下方，且向後延伸。 供乘客用之左右置腳部35與35位於主骨架8之傾斜延伸 部分8b與後骨架9之直立部分9a之間的邊界部分以中。 126883.doc -13- 200836962 左右置腳部35位於高於供騎乘者用之左右置腳部34處。 母置腳部35具有一固定於邊界部分2a之腳架35a及一包 含一彈性構件且位於一腳架35a上之踏板35b。左右踏板 35b經成形而如同在前後方向上延伸之矩形薄片，且此等 置腳部足夠大以供乘客擱置其整個腳部。 左右置腳部35位於引擎單元3之引擎體15後方，亦位於 軸箱18a及消音器17b上方，且位於引擎單元3之最高端（吸 氣系統）下方。 此處，儘管未在圖式中展示，但置放一車身外罩以覆蓋 車身骨架2之前座及後座5下方之區域以及引擎單元3之左 右側。建立一由前座4與後座5之間的車身外罩界定之騎乘 空間，其為空間c。該空間c自後座5之底部邊緣下方向下 沈陷，且形成通過車輛寬度方向。空間^位於建立於前座* 前方之一沈陷部分c，下方。 在此實施例中，後座5與前座4分開設置於後方，且引擎 單元3安裝於引擎體15之前部到達之供騎乘者用之左右置 腳部34與34之間處。因此，為引擎單元3之組件的引擎體 15及吸氣系統16可設置為分散於前座4與後座$之間。以此 方式，可廣泛保留供乘客用之腳部的空間，因此可改良載 運容量以及上車與下車能力。 引擎單tl3之前部位於前座4下方，且因此當引擎單元$ 被視作整體時引擎單元3之組件可設置為在前後方向上分 散於車身骨架2上。與引擎單元集中於後座下方之狀況相 比，其允許車輛在前後方向上之較優良重量平衡，且改良 126883.doc -14· 200836962 了駕駛性能。 在此實施例中，車身骨架2之主骨架8係設置於如同其自 引擎單元3上方向後延伸。換言之，引擎單元3安裝於主骨 架8之下’且因此可將車身之質量中心設定得較低，從而 允許進一步改良駕駛性能。 在此實施例中，前座4安裝於具有較強剛性之主骨架8之 傾斜部分8a上，因此可保留前座4之支撐剛性。Ο The way of moving is self-supporting and the tube 7 of the front portion 6 is extended rearward, and the rear skeleton 9 continues from the main skeleton 8 to the rear of the vehicle. The main skeleton has an inclined portion 8b extending from the head pipe 7 at an angle toward the lower side and the rear of the vehicle to follow the inclined portion 8b extending downward at an angle. The rear skeleton 9 has an upright portion 9a extending from the rear end of the inclined extension portion (4) when standing upright and a horizontal portion 9b extending rearward from the upright portion and extending substantially horizontally. At the lower end of the further portion 6, the steering handle rotatably supports a battery 12, a front wheel 10, to the front end 11 at a top end of the front portion 6 via a bracket 7a. It is placed in front of the head tube 7. The gas system 16 and the exhaust system engine unit 3 include an engine body 15, a system 17 and an engine drive system 18. The engine body is - air cooled 4 strokes? The engine is suspended from the lower portion of the main frame 8 in a fixed state via the front and rear suspension brackets 13 and 14. The engine body 15 is installed, wherein the cylinder shaft is extended, and the engine body 15 has a structure, and the cylinder head 15b and a head 126883.doc -10·200836962 are connected to A front mating face of the cylinder l5a and a crankcase (5) are coupled to the rear mating face of the cylinder block 15a. A crankshaft 15e is placed in the crankcase W in the vehicle visibility direction. The transmission mechanism (not shown) is located behind the crankshaft (5) and is placed in the crankshaft phase 15d. The output shaft for driving the engine power from the transmission mechanism ·· l5f protrudes from the left side wall of the crankcase 15d. The engine drive train 18 is located on the left side in the vehicle width direction. Engine Drive Γ: 18, Yes - The front edge is supported by a shaft phase 18a that is swung up and down by the crankcase 15d and a drive shaft (not shown) that is placed in the axle box 18a. The front edge of this drive shaft is connected to the output shaft 15f, and the rear wheel 19 is connected to the rear edge of the drive shaft. A rear cushion 20 is disposed between the rear edge of the axle housing 18a and one of the horizontal portions 9b of the rear frame 9. The rear cushion 2 is located at the front side of the erroneous line passing through the center of the rotation axis of the rear wheel 19. The suction system 16 is connected to the front of the connection (suction port) of the cylinder head 15b, and I extends from its forward and upward directions. Specifically, the suction system 16 has an intake pipe 16a connected to the upper wall of the cylinder head 15b, extending upward therefrom and bent forward; a gas valve body 16b connected to the suction pipe 16a The upstream end opens and the port; and a clean air machine 16c is connected to the throttle body 16b. The air purifier ^16c is located above the throttle body l6b and is located below the front edge of the inclined portion 8a of the main bobbin 8. The exhaust system 17 has an exhaust pipe 17a connected to the bottom wall of the cylinder head 15b and positioned when extending rearward along the bottom of the engine body; and a muffler 17b connected to the downstream of the exhaust pipe 17a At the end of the vehicle, the position 126883.doc 200836962 is on the right side of the rear wheel 19. Viewed from the side of the vehicle, the upper end 15cf of the head cover 15c at the highest end of the engine body 15 is mounted to be located below the line connecting the upper end i〇a of the front wheel 1〇 with the upper wheel 19 of the rear wheel 19. According to the second motor-driven vehicle 1 of this embodiment, the front and rear wheels 19 are larger in wheel size than the normal wheels for the small-turbine-type machine bicycle. The front seat 4 is located above the inclined portion 8a of the main frame 8, and is mounted on one of the seat supporting members 24a of the steel pipe fixed to the inclined portion 8a. The seat support member 24 is externally suspended from the inclined portion 在 in the vehicle width direction. The seat support member 24 has left and right support members 24a and 24a extending rearwardly and upwardly, and a lateral support member 24b connecting the upper ends of the left and right support members 24a and 24a in the vehicle width direction. The front seat 4 has a structure in which a cushion 4b is placed on a bottom plate 4a and covered by an outer plate. The rear end of the bottom plate 4a is supported on the lateral support member 24b via a seat hinge 4c for pivotal movement up and down. A luggage hook 2 is attached to the lateral support member. Below the luggage hook 24c is a space for loading luggage as will be described later. A fuel tank 25 is mounted on the inclined portion of the main frame 8. The fuel tank is located inside the seat support member 24 and below the front seat 4, and is squatted from above by the front seat 4. A storage tank 26 having a top opening is located in the fuel tank 25. A cover member 27 is fixed to the floor sill of the front seat 4, extends forward from the front seat 4, and is used to open and close the ga storage box 26. The cover member 27 can be a locking member 28 at the front end of the storage box 26. t t lock release and then the front seat 4 rotates around 126883.doc •12·200836962 〃 / °, the interior of the storage tank 26 and the filling opening of the fuel tank 25 are exposed. The storage box 26 can be used to plant smaller items. Fueling the fuel tank 25 is performed via the packing opening. The rear seat 5 is located outside the horizontal portion of one of the rear frames 9. The rear seat 5 is directly mounted to the horizontal via the sheet metal struts 3 on the horizontal portion 9b. Part: 9b. The rear seat 5 is located at a position continuing to be equal to the seat. Specifically, the height of the horizontal portion 9b of the rear and the squat 9 is set to be almost equal to the bottom side of the front seat 4. The chair stay 30 has water from the width of the vehicle The flat portion has a rectangular U shape extending outside the outer portion. The handrail bar 3 is fixed to the horizontal portion % and extends to surround the right and rear sides of the rear seat 5. The handrail bar 3 1 has a general xj shape as viewed in a plan view. A backrest 32 supporting the back of the passenger is attached to the grab bar 3 i. The left and right leg portions 34 and 34 for the rider are located below the front seat 4. The left and right leg portions 34 are respectively connected via a tripod (not shown). The left and right walls of the crankcase 15d are fixed to the engine body. Each of the leg portions 34 has a rod-shaped leg portion 34a protruding from the self-supporting foot bracket and an elastic member including the foot portion 34a. In this manner, for the engine unit 3, the engine body 15 is located between the left and right leg portions 34 and 34, and the suction system 16 is located in front of the region defined between the left and right leg portions 34 and 34. The engine drive system 18 is located between and above the left and right leg portions 34 and 34 and extends rearward. The exhaust system 17 is located between and below the left and right leg portions 34 and 34 and extends rearward. The portions 35 and 35 are located at the inclined extension portion 8b of the main skeleton 8 and the rear skeleton 9 The boundary portion between the vertical portions 9a is in the middle. 126883.doc -13- 200836962 The left and right foot portions 35 are located above the left and right foot portions 34 for the rider. The female foot portions 35 have a fixed portion at the boundary portion. 2a tripod 35a and a pedal 35b including an elastic member and located on a tripod 35a. The left and right pedals 35b are shaped like rectangular sheets extending in the front-rear direction, and the legs are large enough for the passenger to rest The left and right leg portions 35 are located behind the engine body 15 of the engine unit 3, and are also located above the axle box 18a and the muffler 17b, and are located below the highest end of the engine unit 3 (suction system). Here, although not shown in the drawings, a body cover is placed to cover the area of the front and rear seats 5 of the body frame 2 and the left and right sides of the engine unit 3. A ride space defined by the body cover between the front seat 4 and the rear seat 5 is created as a space c. This space c sinks downward from the bottom edge of the rear seat 5 and is formed through the vehicle width direction. The space ^ is located at the sinking portion c, which is located in front of the front seat*, below. In this embodiment, the rear seat 5 and the front seat 4 are disposed apart from the rear, and the engine unit 3 is mounted between the left and right leg portions 34 and 34 for the rider to reach the front portion of the engine body 15. Therefore, the engine body 15 and the suction system 16 which are components of the engine unit 3 can be disposed to be dispersed between the front seat 4 and the rear seat $. In this way, the space for the passenger's foot can be widely reserved, thereby improving the carrying capacity and the ability to get on and off the vehicle. The front portion of the engine unit tl3 is located below the front seat 4, and thus the components of the engine unit 3 can be arranged to be dispersed on the body frame 2 in the front-rear direction when the engine unit $ is regarded as a whole. Compared with the situation in which the engine unit is concentrated under the rear seat, it allows the vehicle to have a better weight balance in the front-rear direction and improves the drivability of 126883.doc -14· 200836962. In this embodiment, the main frame 8 of the body frame 2 is disposed as it extends rearward from the engine unit 3. In other words, the engine unit 3 is mounted below the main frame 8 and thus the center of mass of the body can be set lower, thereby allowing further improvement in drivability. In this embodiment, the front seat 4 is attached to the inclined portion 8a of the main frame 8 having a relatively high rigidity, so that the supporting rigidity of the front seat 4 can be retained.
將在如座4之安裝部分前方進一步向後延伸之傾斜延伸 部分8b提供至主骨架8之傾斜部分8a。因此具有對地面較 低尚度且供乘客上車及下車之空間c可建立於前座4與後座 5之間。 在此實施例中，前座4經由向上延伸之座椅支撐構件以 而安裝至主骨架8之傾斜部分8a。因此，可使用建立於前座 4之下側與傾斜部分8a之間的空間來有效放置燃料箱25。 又，可使用建立於前座4之前方與傾斜部分“之間的空 間來有效放置儲存箱26。 在此實施例中，車身骨架2具有以在主骨架8之後持續之 角度向後及向上延伸之後骨架9，且後座5安裝於後骨架9 上。因此具有較強剛性之後骨架9可支撐後座5。詳言之， 車身骨架2具有自主骨架8之傾斜延伸部分扑向上直立之直 立部分9a以及在直立部分％之後持續水平延伸之水平部分 外。後座5直接安裝於在直立部分〜之後持續水平延= ”可在不使用特定增強結構之情況下 126883.doc -15- 200836962 在此實施例中，當自車輛側面觀察時，左右置腳部35與 35位於引擎單元3上方，且因此來自引擎單元3之熱量不易 傳輸至乘客。結果，與將置腳部安置於引擎單元之左右侧 的狀況相比，可改良騎乘感及舒適性。 ^ 引擎單元3之吸氣系統16位於供騎乘者用之左右置腳部 • 34與34之間的區域前方。因此，可使用引擎體前方的空間 來有效放置吸氣系統，且同時可防止由來自引擎體15之熱 量引起的效應。 (、 、卜 在汽缸軸線"a”大體水平指向時安裝引擎體15。引擎體 15之最高端處之頭蓋15c的上端15〇，位於低於連接前輪丨❹之 上端10a與後輪19之上端19a之連接線” b，，處。因此，可將 車身之質ϊ中心設定得較低，且同時可避免來自引擎體i 5 及排氣系統1 7之熱量傳導至騎乘者及乘客。 因為前輪10及後輪19之車輪尺寸變得較大，所以亦可改 良運行穩定性。 iJ 此處在此實施例中，前輪10之上端l〇a與後輪19之上端 19a等高，換言之其車輪尺寸相同。然而本發明亦可應用 於前輪與後輪之尺寸不同之狀況··例如後輪尺寸小於前輪 • 尺寸之狀況，或相反地前輪尺寸小於後輪尺寸之狀況。即 . 使别後輪之尺寸不同，亦可藉由在引擎體之上端位於低於 連接如後輪之上端之連接線處時來安裝引擎體而獲得相同 效應。本發明亦可應用於在引擎體之上端位於低於前後輪 之上、中之任一較咼者處時來安裝引擎體之狀況。 已基於二輪機動車輛解釋了上述實施例，但本發明亦可 126883.doc -16- 200836962 應用於三輪機動車輛。在此狀況下，車輛可藉由左右橫向 配置後座或配置長凳式後座來載運兩名乘客。 圖2及圖3說明根據本發明之第二實施例之三輪機動車 輛。在圖式中，與圖1中之參考數字相同的參考數字指示 、 相同部分或等效部分。 、 本實她例中之二輪機動車輛包括一車身骨架2、一安穿 於該車身骨架2用於上下樞轴運動之引擎單元4〇、一安裝 於該車身骨架2上之供騎乘者用之前座4及一以預定距離與 該前座4分開向後方設置之供乘客用之後座5。 車身骨架2具有一主骨架8及一自該主骨架8持續且向後 延伸之後骨架9。此等組件之基本機構與第一實施例幾乎 相同，因此以下主要關於不同結構進行解釋。 引擎單元40為單元擺動類型四衝程引擎，其具有一結 構，其中引擎體40a之一曲柄軸箱40b整體地連接至一安放 一帶式連續可變傳動機構41之變速箱4〇c且一後輪19由該 G 變速箱40c可旋轉地支撐。一位於變速箱4〇c與後骨架9之 水平部分9b之間的後緩衝墊2〇,大體位於穿過後輪19之旋 轉軸19b的錯垂線後方。 ▼式連績可變傳動機構41具有以下結構，其中：一附著 ^ 於一曲柄軸15e的主動皮帶盤41a與一附著於經由對軸42連 接至後輪19之旋轉軸丨朴之從動軸41b的從動皮帶盤41c由 一 V形帶41d連接。 向鈾延伸之擺動托架4〇(1形成於曲柄軸箱4〇b之前端 處。擺動托架40d經由一樞軸38而由左右懸掛托架39與39 126883.doc •17- 200836962 可旋轉地支撐，該等懸掛托架39及39固定於主骨架8之一 傾斜部分8a且自該傾斜部分“延伸至底部。此結構支撐引 擎體40a用於其圍繞樞軸38之上下樞軸運動。引擎體4〇a之 擺動支撐部分可位於曲柄軸箱4〇b上方。 - 一向前延伸之吸氣系統16連接至引擎體40a。吸氣系統 • 16之一淨氣機16c位於並固定於引擎體40a前方。淨氣機 16c與一節氣閥體16b經由一吸收引擎體4〇a之上下運動的 伸縮式吸氣管1 6d而連接。 一燃料箱25安裝於主骨架8之傾斜部分心上。前座4直接 2裝於燃料箱25上。燃料箱25之一染料入口 25a位於前座4 前方。一控制單元44懸掛於傾斜部分8&之下。 二輪機動車輛1由一車身外罩包圍。該車身外罩主要包 括：一把手外罩50,其用以包圍轉向把手丨丨之外部；一前 外罩51，其用以覆蓋前又部6之前側；左右前側外罩^與 52，其用以覆蓋前座4下方至燃料箱乃且至引擎單元3之前 ϋ 料左右侧之包括主骨架8之區域；及左右後侧外罩53， 其用以覆蓋後座5下方至後骨架9之左右側的區域。該車身 外罩之結構與根據第一實施例之二輪機動車輛中之結構大 ** 體相同。 - 左右懸掛托架39向下延伸以覆蓋淨氣機16c，且懸掛托 架39之下端位於淨氣機16c之下端下方。 腳架55螺栓連接至左右騎托架之下端，其中腳架⑽ 車輛寬度方向上在外部突出。腳架55具有在前後方向上延 伸之左右腳部分55a與55a以及—連接該等左右腳部分… 126883.doc -18- 200836962 之兩個前邊緣的前接合部分55b。腳架55在平面圖中為（ 形。電池12安裝於前接合部分55b。 在前後方向上延伸之供騎乘者用之置腳部52a當其覆蓋 左右腳部分55a之頂面時以階梯形在外部形成於左右前側 - ' 外罩52上。引擎單元3之吸氣系統16及引擎體40a之前部位 於左右置腳部52a之間。 左右串列托架57與57連接於車身骨架2之邊框部分2a 處。在前後方向上延伸之左右腳架56與56螺栓連接至左右 串列托架57。左右腳架56與56在車輛寬度方向上於外部突 出。左右腳架56位於引擎體40a上方。 在前後方向上延伸以覆蓋腳架56之頂面的供乘客用之置 腳部53a以階梯形在外部形成於左右後侧外罩53中之每一 者上。 在此實施例中，單元擺動類型引擎單元4〇經安裝用以將 其前部設置於左右置腳部52a與52a之間。因此引擎單元4〇 〇 之組件可經設置以自前座4之下至後座5之下分散於前後方 向上，因此可保留較大空間供乘客腳部使用。引擎單元 位於車身骨架2上以分散於前後方向上。因此車輛在前後 方向上之重量平衡可為優良的，且可獲得與第一實施例中 - 之效應相同的效應。 圖4為說明根據本發明中之第三實施例之機器腳踏車的 視圖。在該圖中，與圖1及圖2中之參考數字相同的參考數 字指示相同部分或等效部分。 在此實施例中，二輪機動車輛i包括：一車身骨架6〇、 126883.doc -19· 200836962 -在固定狀態下安裝於該車身骨架6q上之引 安裝於該車綱6〇上之供騎乘者用之前座4以及一以預 定距離與該前座4分開向後方設置供乘客用之後座5 本結構與第一及第二實施例中之結構幾乎相同。因此以； 對不同結構進行解釋。 車身骨架6〇具有一主骨架61及-獨立於該主骨架61而形 成之後骨架62。主骨架61與後骨㈣由—形成車身骨架之 一部分的引擎體15連接。The inclined extending portion 8b which is further extended rearward in front of the mounting portion such as the seat 4 is supplied to the inclined portion 8a of the main bobbin 8. Therefore, a space c having a lower floor and a passenger getting on and off the vehicle can be established between the front seat 4 and the rear seat 5. In this embodiment, the front seat 4 is attached to the inclined portion 8a of the main frame 8 via the upwardly extending seat supporting member. Therefore, the space created between the lower side of the front seat 4 and the inclined portion 8a can be used to effectively place the fuel tank 25. Further, the storage box 26 can be effectively placed using a space established between the front side of the front seat 4 and the inclined portion. In this embodiment, the body frame 2 has a skeleton extending rearward and upward at an angle continuing after the main skeleton 8. 9, and the rear seat 5 is mounted on the rear frame 9. Therefore, the frame 9 can support the rear seat 5 after having a relatively strong rigidity. In detail, the body frame 2 has an inclined portion of the autonomous skeleton 8 and an upright portion 9a which stands upright and Outside the horizontal portion that extends horizontally after the erect portion %. The rear seat 5 is directly mounted after the erect portion ~ after the horizontal extension = "can be used without the use of a specific reinforcement structure 126883.doc -15- 200836962 in this embodiment The left and right leg portions 35 and 35 are located above the engine unit 3 when viewed from the side of the vehicle, and thus the heat from the engine unit 3 is not easily transmitted to the passenger. As a result, the riding feeling and the comfort can be improved as compared with the case where the leg portions are placed on the right and left sides of the engine unit. ^ The suction system 16 of the engine unit 3 is located in front of the area between the left and right legs for the rider • 34 and 34. Therefore, the space in front of the engine body can be used to effectively place the air intake system while preventing the effect caused by the heat from the engine body 15. (,, the engine body 15 is mounted when the cylinder axis "a" is substantially horizontally pointed. The upper end 15 of the head cover 15c at the highest end of the engine body 15 is located below the upper end 10a and the rear wheel 19 of the front wheel rim. The connection line of the upper end 19a is "b,". Therefore, the center of the vehicle body can be set lower, and at the same time, the heat from the engine body i 5 and the exhaust system 17 can be prevented from being transmitted to the rider and the passenger. Since the wheel sizes of the front wheel 10 and the rear wheel 19 become larger, the running stability can also be improved. iJ Here, in this embodiment, the upper end 10a of the front wheel 10 is equal to the upper end 19a of the rear wheel 19, in other words, The wheel has the same size. However, the present invention can also be applied to the case where the front wheel and the rear wheel are different in size. For example, the rear wheel size is smaller than the front wheel size, or the front wheel size is smaller than the rear wheel size. The rear wheel is different in size, and the same effect can be obtained by mounting the engine body when the upper end of the engine body is located below the connecting line connecting the upper end of the rear wheel. The present invention can also be applied to the upper end of the engine body. Below and below The condition of the engine body is installed at any of the above-mentioned wheels. The above embodiment has been explained based on the two-wheeled motor vehicle, but the invention can also be applied to a three-wheeled motor vehicle at 126883.doc -16-200836962. In this case, the vehicle can carry two passengers by arranging the rear seat laterally or laterally or configuring the bench rear seat. Figures 2 and 3 illustrate a three-wheeled motor vehicle according to a second embodiment of the present invention. The same reference numerals as in FIG. 1 denote the same reference numerals, the same parts or equivalent parts. The second embodiment of the present invention includes a body frame 2, and an armature frame 2 for pivoting up and down. The engine unit 4A, a front seat 4 for the rider mounted on the body frame 2, and a rear seat 5 for the passenger to be disposed rearwardly separated from the front seat 4 by a predetermined distance. The body frame 2 has a main body. The skeleton 8 and the skeleton 9 continue from the main skeleton 8 and extend rearward. The basic mechanism of these components is almost the same as that of the first embodiment, so the following mainly explains about different structures. The engine unit 40 is a unit. A dynamic type four-stroke engine having a structure in which a crankcase 40b of one of the engine bodies 40a is integrally coupled to a gearbox 4〇c in which a belt-type continuously variable transmission mechanism 41 is placed and a rear wheel 19 is shifted by the G The box 40c is rotatably supported. A rear cushion 2〇 located between the gearbox 4〇c and the horizontal portion 9b of the rear frame 9 is located substantially behind the misalignment passing through the rotating shaft 19b of the rear wheel 19. The variable transmission mechanism 41 has a structure in which a driving belt 41a attached to a crank shaft 15e and a driven shaft 41b attached to the rotating shaft 41b connected to the rear wheel 19 via the pair of shafts 42 are driven. The belt pulley 41c is connected by a V-belt 41d. The swing bracket 4' (1) extending toward the uranium is formed at the front end of the crankcase 4b. The swing bracket 40d is rotatably supported by left and right suspension brackets 39 and 39 126883.doc • 17-200836962 via a pivot 38 which is fixed to one of the inclined portions 8a of the main frame 8 and The inclined portion "extends to the bottom. This structure supports the engine body 40a for pivotal movement about the pivot 38. The swing support portion of the engine body 4A can be located above the crankcase 4b. - a forward extension The air suction system 16 is connected to the engine body 40a. The air suction system 16 is located in front of the engine body 40a. The air purifier 16c and the air valve body 16b are connected to the engine body 4a. A telescopic suction pipe 16d connected up and down is connected. A fuel tank 25 is mounted on the inclined portion of the main frame 8. The front seat 4 is directly attached to the fuel tank 25. One of the fuel tanks 25 is located at the front seat 4 A control unit 44 is suspended below the inclined portion 8 & The second motor vehicle 1 is surrounded by a body cover. The body cover mainly comprises: a handle cover 50 for surrounding the outside of the steering handle ;; a front cover 51 Used to cover the front a front side of the portion 6; left and right front side covers ^ and 52 for covering the area including the main frame 8 on the left and right sides of the fuel tank and to the left and right sides of the fuel tank before the engine unit 3; and the left and right rear side covers 53 for use To cover the area from the lower side of the rear seat 5 to the left and right sides of the rear frame 9. The structure of the body cover is the same as that of the structure of the two-wheeled motor vehicle according to the first embodiment. - The left and right suspension brackets 39 extend downward to The air purifier 16c is covered, and the lower end of the suspension bracket 39 is located below the lower end of the air purifier 16c. The tripod 55 is bolted to the lower end of the left and right riding brackets, wherein the tripod (10) protrudes outward in the vehicle width direction. There are left and right leg portions 55a and 55a extending in the front-rear direction and a front engaging portion 55b connecting the two front edges of the left and right leg portions 126883.doc -18-200836962. The stand 55 is (shaped) in plan view. The battery 12 is attached to the front joint portion 55b. The rider's foot portion 52a extending in the front-rear direction is formed on the left and right front sides - 'the outer cover 52 in a stepped shape when covering the top surface of the left and right foot portions 55a .engine The suction system 16 of the unit 3 and the front portion of the engine body 40a are located between the left and right leg portions 52a. The left and right series brackets 57 and 57 are connected to the frame portion 2a of the body frame 2. The left and right legs extending in the front-rear direction 56 and 56 are bolted to the left and right tandem brackets 57. The left and right legs 56 and 56 protrude outward in the vehicle width direction. The left and right legs 56 are located above the engine body 40a. The front and rear legs extend to cover the top of the stand 56. The footrest portion 53a for the passenger is formed on the outside of each of the right and left rear side covers 53 in a stepped shape. In this embodiment, the unit swing type engine unit 4 is mounted to set its front portion between the left and right leg portions 52a and 52a. Therefore, the components of the engine unit 4〇 can be arranged to be dispersed in the front and rear directions from below the front seat 4 to below the rear seat 5, so that a large space can be reserved for the passenger's foot. The engine unit is located on the body frame 2 to be dispersed in the front-rear direction. Therefore, the weight balance of the vehicle in the front-rear direction can be excellent, and the same effects as those in the first embodiment can be obtained. Fig. 4 is a view showing a bicycle of a bicycle according to a third embodiment of the present invention. In the figure, the same reference numerals as those in Figs. 1 and 2 denote the same parts or equivalent parts. In this embodiment, the two-wheeled motor vehicle i includes: a body frame 6〇, 126883.doc -19·200836962 - a guide mounted on the body frame 6q in a fixed state and mounted on the car body 6〇 The passenger seat 4 and a rear seat 4 are provided at a predetermined distance apart from the front seat 4 for the passenger. The structure of the seat 5 is almost the same as that of the first and second embodiments. Therefore, explain the different structures. The body frame 6 has a main frame 61 and - a frame 62 is formed independently of the main frame 61. The main skeleton 61 and the rear bone (4) are connected by an engine body 15 which forms a part of the body frame.
(j 特定地，主骨架61之一傾斜延伸部分61b與引擎體。之 曲柄軸箱15d之上壁藉由螺栓拉緊經由一主托架63而連 接。後骨架62之一直立部分62a與一曲柄軸箱15d之後壁藉 由螺栓拉緊經由一後托架64而連接。 鋼管之左右座椅支撐構件65與65位於主骨架61之一傾斜 部分61a上方。該等左右座椅支撐構件65中之每一者固定 於一主托架63。座椅支撐構件65具有：一後傾斜部分 65a’其以一角度向後及向上延伸；及一直線部分65b，其 在該後傾斜部分65之上端處彎曲接著幾乎筆直向前延伸接 著固定於一頭部管7。經由一托架7a將一控制單元44設置 於頭部管7前方。沿傾斜部分65a設置一電池12。 前座4經由一座椅托架66安裝於左右直線部分65b之後端 上。前座4經設置以自座椅支撐構件65之後端向後突出。 一燃料箱25在左右直線部分65b上安裝於前座4前方。燃 料箱25係設置為其下半部位於直線部分65b下方且其上半 部位於直線部分65b上方。 126883.doc -20- 200836962 且在左右前侧外罩52中之每一者上，在前後方向上延伸 之一供騎乘者用之置腳部52a以階梯形形成於車輛外部。 引擎體15位於左右置腳部52a之間。 在左右後側外罩53中之每一者上，在前後方向上延伸之 一供乘客用之置腳部53a以階梯形形成於車輛外部。左右 - 置腳部53a位於引擎單元3上方。 根據此實施例，在引擎體15位於供騎乘者用之左右置腳 部52&與52&之間時安裝在固定狀態下安裝於主骨架61上之(j Specifically, one of the main skeletons 61 has an inclined extension portion 61b and an engine body. The upper wall of the crankcase 15d is connected by a bolt to be tensioned via a main bracket 63. The upright portion 62a of the rear skeleton 62 and one The rear wall of the crankcase 15d is connected by a bolt tensioning via a rear bracket 64. The left and right seat supporting members 65 and 65 of the steel pipe are located above one of the inclined portions 61a of the main frame 61. The left and right seat supporting members 65 are Each of them is fixed to a main bracket 63. The seat supporting member 65 has a rear inclined portion 65a' which extends rearward and upward at an angle, and a straight portion 65b which is bent at the upper end of the rear inclined portion 65. Then, it extends almost straight forward and then is fixed to a head tube 7. A control unit 44 is disposed in front of the head tube 7 via a bracket 7a. A battery 12 is disposed along the inclined portion 65a. The front seat 4 is via a seat bracket 66 is attached to the rear end of the right and left straight portion 65b. The front seat 4 is provided to protrude rearward from the rear end of the seat support member 65. A fuel tank 25 is mounted in front of the front seat 4 on the left and right straight portions 65b. The fuel tank 25 is provided for Lower part Below the straight portion 65b and the upper half thereof is located above the straight portion 65b. 126883.doc -20- 200836962 and on each of the left and right front side covers 52, one of the front and rear directions is provided for the rider. The leg portion 52a is formed in a stepped shape on the outside of the vehicle. The engine body 15 is located between the right and left leg portions 52a. On each of the left and right rear side covers 53, one of the front and rear directions extends for the passenger to use. The portion 53a is formed in a stepped shape on the outside of the vehicle. The left and right foot portions 53a are located above the engine unit 3. According to this embodiment, when the engine body 15 is located between the left and right foot portions 52& and 52& Mounted on the main frame 61 in a fixed state
1 I 引擎單元3。因此引擎單元3之組件可設置為以自前座4之 下至後座4之下分散於前後方向上，可保留較大空間供乘 客腳部使用，車身在前後方向上之重量平衡可為優良的， 且可獲得與第一實施例中之效應相同的效應。 【圖式簡單說明】 圖1為說明根據本發明之第一實施例之機器腳踏車的側 視圖。 I 圖2為根據本發明之第二實施例之機器腳踏車的側視 圖。 圖3為機器腳踏車之俯視圖。 ’ 圖4為根據本發明之第三實施例之機器腳踏車的侧視 圖。 【主要元件符號說明】 1 機器腳踏車 2、6〇 車身骨架 3 引擎單元 126883.doc -21 - 200836962 4 供騎乘者用之前座 5 供乘客用之後座 6 前叉部 7 頭部管 8、61 主骨架 8a λ 61a 傾斜部分 8b 、 61b 傾斜延伸部分 9、62 ( 10 後骨架 前輪 10a 上端 15 ^ 40a 引擎體 15c， 頭蓋之上端（引擎體之最高端） 15d、40b 曲柄軸箱 16 吸氣系統 17 排氣系統 18 19 引擎驅動系 後輪 19a 上端 ^ 25 燃料箱 34 、 52a 供騎乘者用之置腳部 35 、 53a 供乘客用之置腳部 40 單元擺動類型引擎單元 a 汽缸軸線 b 連接線 126883.doc -22-1 I engine unit 3. Therefore, the components of the engine unit 3 can be arranged to be dispersed in the front-rear direction from below the front seat 4 to below the rear seat 4, and a large space can be reserved for the passenger's foot. The weight balance of the vehicle body in the front-rear direction can be excellent. And the same effect as that in the first embodiment can be obtained. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a side elevational view showing a motorcycle according to a first embodiment of the present invention. Figure 2 is a side elevational view of a bicycle according to a second embodiment of the present invention. Figure 3 is a top view of the bicycle. Figure 4 is a side elevational view of a machine bicycle in accordance with a third embodiment of the present invention. [Main component symbol description] 1 Machine bicycle 2, 6 〇 body frame 3 Engine unit 126883.doc -21 - 200836962 4 Front seat for riders 5 For passengers Rear seat 6 Front fork 7 Head tube 8, 61 Main skeleton 8a λ 61a inclined portion 8b, 61b inclined extension portion 9, 62 (10 rear skeleton front wheel 10a upper end 15 ^ 40a engine body 15c, upper end of head cover (high end of engine body) 15d, 40b crank axle box 16 suction system 17 Exhaust system 18 19 Engine drive system Rear wheel 19a Upper end ^ 25 Fuel tank 34, 52a For the rider's foot 35, 53a For the passenger's foot 40 Unit swing type Engine unit a Cylinder axis b Connection Line 126883.doc -22-