1245728 九、發明說明： 【發明所屬之技術領域】 本發明係關於一 機的發電電力驅動 之電動車輛。 種使用引擎驅動發電機，並且藉由發電 馬達而驅動車輪之擺動臂單元及具備其 【先前技術】 日定式皁輛如同於機車气車 以引檠¥叙# k 早寺所見到，一般係 i2I敬 、 平采重視核境問題，為了儘量減少 由引擎驅動式的車輛排屮 一 干聊徘出之％境3染物質，考量與引擎並 同搭載驅動車輪之酿命^ 、去 之le動馬達，並不只是藉由引擎進行驅動 輪的驅動，而且藉由—备$ 稽由驅動馬達進行驅動輪的驅動之車輛， 即所謂混合車輛。 例如，於專利文獻i揭示一種電動機車，其係具有驅動驅 動輪之驅動馬達、供電至驅動馬達之電池及於行駛中充電 至5亥電池之引擎驅動式的發電機者。於該車輛，於座柱及 後輪的擔泥板之間，使各個的旋轉軸平行而上下並列配置 引擎及發電機，並於發電機的下部經由動力單元配置使後 輪驅動之驅動馬達。 於該電動機車，將藉由發電機發電之電力充電至電池， 藉由讜充電之電力使馬達驅動，可使車輪驅動。因此，不 論車輛的速度，藉由使引擎的旋轉數大略一定，可使環境 污染物質減少。 【專利文獻1】特開2〇〇1-106159號公報，參照圖12 【發明内容】 97958.doc 1245728 及=:專利，之作為混合車輛之電動機車，於座柱 連接：引擎限的空間’上下配置引擎及發電機。因此，有 ΐ接至引擎之吸排氣裝置等的構成構件的設置空間等的= 定空間的確保困難之問題。特別期望儘量降…4的特 ==置位置’而於引擎部分的上部儘量 虱濾 >月窃與化油器等之 成 置空間。 参’及孔糸統之各構成構件之設 又’引擎及發電機的各個的旋轉軸 後方向約略正交之方向，具有-定長度之曲轴= 機的轉轴長部分、車寬變大，外觀不佳。 本發明係_…! Γ:Γ，操作性降低。 :引广電機’於該引擎及發電機上方可確保_定的空 Β太心縮小車寬之擺㈣單元及具備其之電動車輕。 發明的擺動臂單元採用以下構成：具傷動力單… 係一體地具有引雙；9益山兑丄 ’、 者.臂太許 引擎的驅動而發電之發電機 扩， 、、係於一端部側自由搖動地軸裝於車輛本體 =太且於他端部側轴支車輪者；及馬達，其係設置於前 者， m :由末自則述發電機的電力旋轉驅動車輪 =力早70設置於前述臂本體的前述-端部而成。 Χ β構成’具有引擎及發電機之動力單元於—端部側 ^裝於車純本體，於他端部側設於軸支 =之臂本體一端部而成，故成為一體地具 、、及車輪之構成’只軸裝該擺動臂單元於車輛本體 97958.doc 1^4^728 框架，比較起引擎及發電機等的動n 本體框架之構成，可降低該等動力σσ早凡直接安裝於車輛 對於車輛本體，振動變得難傳達單7^的配置位置。又， 又，因為-體地具備動力裴置 擺動臂單元於車體框架，成·及車輪，只安裝該 車輛’無需個別地安裝構成該驅。動部構、成驅動部分之裝置之 本發明的擺動臂單元於前述構成採刀之裝置於車輛本體。 電機的轉軸與前述曲柄軸一體地形=用Μ下構成·前述發 根據該構成，發電機的轉軸因 必要另外讯署跅^ # 马”曲柄軸為一體，沒有 义要另外叹置驅動傳送機構，其 又有 力至發電機者，可咩长動Λ w _ 一曲柄軸的旋轉驅動 “ 了 °某求動力早林身的小型化。 本备明的擺動臂單元於前述構 擎的曲柄軸配置於轴裝前述下構成··前述引 前後方向。 切之“車I林體框架的 根據該構成，與轉軸一體的曲柄 泸夕义、+、击 因為配置於軸裝臂本 體之别述車輛本體框架的前後在 隹万向，曲柄軸不突出於車 -可使車寬較小。因此’駕駛者跨於安裝擺動臂單 兀之車輛之際，可容易地跨越，並且外 本發明的擺㈣單元於前述構成採用以下構成··前述曲 柄軸配置於通過前述車輪寬度的中心線之平面上或是前述 平面近旁。 根據4構成，旋轉驅動之曲柄軸因為配置於通過車輪寬 度的中。線之平面上或是前述平面近旁，於安裝擺動臂單 元之車輛’藉由曲柄軸的旋轉驅動，車輛全體的平衡不會 97958.doc 1245728 降低。 本發明的擺動臂單元於前述構成採用以下 — 達配置於前述臂本體的前述他端部， 達::迷馬 軸與前述車輪軸為同軸。 ^也馬達的旋轉 根據該構成，驅動軸支於臂本體的他端部側之 達因為配置於他端部，於臂本體的-端部配置引擎：：馬 他端部軸支藉由引擎的馬區動力旋轉驅動之車輪之擺動= 異，於引擎及車輪，亦即臂本 不需要由傳動軸等、動力源（動π而/及他端部之間， 構’可防止該部分的重量增加，再者可謀求零件 減。又，無需於車輪及馬達之間設置傳送驅動力之機構 可進-步謀求零件件數的削減、重量的減低。 冓’ 構=明的電動車輛係採用具備前述構成的擺動臂單元之 藉此構成’因為具備前述構成之擺動臂單元，可將動力 單元的配置位置作為車柄全體配置於低位置，於動m 的上部可形成配置其他裝置之空間 ..^ 入降低重心，可# 車輛貫現穩定之行駛。x，具有引擎 地形成於支持車輪之擺動臂翠元，難傳 P因為一體 輛本體，可降低車輛對駕駛者之影響。 t辰動至車 本發明的電動車'4-' 1 电靭早輛於刖述構成採用以 於前述擺動臂單元的左右之一對框，、有配置 置前述動力單元於前述針"M，两述擺動臂單元配 把攄… 間，輪裝於前述框部。 據構成，於擺動臂單元之動力單元因為配置於-對 97958.doc 1245728 可於一對框部間收 框部間，於具備此擺動臂單元之車輛 納良好地配置動力單元。 本發明的電動車辆於前述構成採用以下構成：於前述一 對框部的上部設置座椅。 根據謂成，因為於座椅下方配置動力單元於一對框部 間，成為良好配置收納之狀態，並可寬廣地採用動力單元 “奇之間的工間’可增大燃料槽與置物箱等的設置 由度。 如以上說明，根據本發明，可將引擎及發電機以低的位 置配置於車辅。又，可縮小車寬。 【實施方式】 本發明之主旨在於提供先前沒有之擺動臂單元，其係藉 由引擎驅動發電機，藉由該發電機的電力，使用於驅動車 輪之混合式的電動車輛，於車輛可於儘可能低的位置配置 該等引擎及發電機的配置位置者。 以下’對於本發明的實施方式，參照圖面詳細地說明。 圖1為顯示關於本發明的一實施方式之電動車輛的外觀 之立體圖。 顯示於圖1之電動車輛1 00係為具有踏板1 〇5之底骨型的 自走式電動機車。 圖2為顯示於圖1取下框蓋部之狀態之電動車輛的立體 圖。又’圖2係顯示取下於圖1包含前蓋131、座椅下方的本 體蓋133、踏板蓋135之框蓋部no等之狀態的電動車輛。 又’圖3為顯示關於本發明的實施方式之電動車輛之要部構 97958.doc 1245728 成：左側面圖。又，於圖3 ’省略安裝於動力單元200之化 油為、220 (參照圖2)及吸氣管22〇c。 電動車輔100如於圖1至圖3所顯示，具備車輛本體框部 座才可120、框蓋部13〇、電池14〇、控制部、擺動臂 單元则。又’框蓋部13〇具有前蓋131、本體蓋133及踏板 蓋135等。 動#單元300具備動力單元2〇〇，其係一體地具備引擎 2 1〇及藉由引擎21〇的驅動而發電之發電機25〇者；臂本體 _，其係於—端部側（於此為車輛前端部側）自由搖動地軸 裝於車輛本體框部110,於他端部側軸支車輪(後輪)33〇者，· 及馬達350，其係設置於臂本體34〇，藉由來自發電機25〇 的電力旋轉驅動後輪330者。 百先，由安裝擺動臂單元300之電動車輛1〇〇的框構成說 明。 如於由圖1至圖3所顯示，車輛本體框部丨丨〇具有手柱 下笞113，其係由手柱丨1丨朝向車輛的後方延伸至座椅 120的下方者；及座柱115，其係於下管η〗的後端部接合下 鳊邛，於上部支持座椅12〇者。又，於座椅12〇的後部的下 面安裝散熱器141。 下管113包含相對配置之一對的管部U3a。各管部丨丨以具 有別s邛11 3 1，其係由手柱i i丨下降至後方者，及後管部 11 32，其係連結至前管部Π 3 1的下端部，略水平地延伸車 體的最低地上高附近至後方，並且於上面形成踏板1〇5者。 一對前管部113 1係藉由前蓋丨3 1覆蓋前面的一部分（參照 97958.doc -10- 1245728 圖1)。於该等一對的前管11 3 1間，於前蓋1 3 1的内側配置電 池140(參照圖2)。 電池140係經由配線纜線連接至馬達35〇、控制部ι5〇及後 述之發電機250。再者，該電池140係包含鎳氫單電池或是 鎳鎘單電池、鋰離子電池等。 又，於一對後管部1132間的踏板105部分（參照圖u，配置 藉由踏板蓋135覆蓋之控制部150。 該控制部150係連接至馬達350、電池140、動力單元2〇〇 及未圖示之節流桿部等，電氣地控制電動車輛1〇〇全體。 再者，於一對後管部1132的後端部，接合構成座柱115之 一對柱材115a之下端部。該等柱材115&係於左右互相相 對’由下‘部以沿著後輪3 3 〇前面的方式站立，以延長至後 斜上方之方式配置。 座柱11 5係具有一對柱材丨5a ; u字型的座框架（圖示省 略），其係以由一對柱材115&的上部約略水平地伸張至車體 的前方之方式接合，於座椅12〇之内側支持座椅12〇之前部 者，及支持管材（圖示省略），其係架設於座椅框架及柱材 115 a之間者。 於該等柱材115a的上部及座椅框架的上面配置座椅 120 ’於座椅120的内部配置燃料槽（圖示省略）。 又，於柱材115a間，於座椅12〇的下方配置空氣濾清界 122。 " °。 於忒空氣濾清器i 22的下部配置擺動臂單元3〇〇的前端 部，該擺動臂單元300係於一對後管部1132的後端部間配置 97958.doc 1245728 擺動臂單元300，經由樞轴162自由搖動地軸裝著。 圖4為顯示擺動臂單元的安裝構造之分解立體圖。 如於圖4顯示，於一對後管部1132的後端部形成分別突出 至下方之肋1133。又，於該等肋1133互相相對地形成樞軸 孔 11 3 4。 另一方面，於擺動臂單元300的前端部的下面側，於與車 體的前後方向正交之方向上，並且水平地形成貫通孔3〇2。 然後，於該貫通孔302的内部，於略中央部分内裝筒狀的中 央樞軸桿304，於該樞軸桿304的兩側配置壓入貫通孔3 之筒狀的樞軸軸環306。 又，於樞軸軸環306的外側配置樞軸墊圈3〇8，於樞軸軸 環及樞軸墊圈308内，由外側插入筒狀的樞軸桿31〇。 然後，枢軸162經由配置於一側方的外面之墊圈312，插 通至肋1133的樞軸孔1134 '貫通孔3〇2内的枢軸桿3ι〇、樞 軸墊圈308、樞軸軸環306、中央樞軸桿3〇4及他側方的 經由配置於他側方的肋11 33的外側 1133的樞軸孔ι134，經由酉; 墊圈3 12，以螺帽3丨4固定。 藉由該樞軸162,擺動臂單元3〇〇由後管部1132延長至後 方，且自由搖動地固定。又 係隨著擺動臂單元3〇〇搖動。 樞軸軸環3 〇 6及樞軸墊圈3 〇 8 於擺動臂單元3〇〇，於貫 300，於貫通孔3〇2的上部設置動力單元1245728 IX. Description of the invention: [Technical field to which the invention belongs] The present invention relates to an electric vehicle driven by a machine's power generation. This type of swing arm unit using an engine to drive a generator and drive wheels by a power generation motor and its [previous technology] Japanese-style soap tanks are similar to those used in locomotives and gas trains, as seen in # 早早 寺, which is generally i2I Jing Jing, attaches great importance to the nuclear environment issue, in order to minimize the amount of environmental pollution caused by engine-driven vehicles, consider the same life as the engine and the driving wheel, ^, and the moving motor. The driving of the driving wheels is not only by the engine, but also by a vehicle that is driven by a driving motor, which is a so-called hybrid vehicle. For example, Patent Document i discloses an electric vehicle that includes a drive motor that drives a drive wheel, a battery that supplies power to the drive motor, and an engine-driven generator that charges to a battery during driving. In this vehicle, an engine and a generator are arranged side by side with each rotation axis parallel to each other between a seat pillar and a mudguard on the rear wheel, and a drive motor for driving the rear wheel is arranged through a power unit below the generator. In this electric locomotive, the electric power generated by a generator is charged to a battery, and the electric motor is driven by the charged electric power to drive the wheels. Therefore, regardless of the speed of the vehicle, by making the number of revolutions of the engine approximately constant, the amount of environmental pollutants can be reduced. [Patent Document 1] Japanese Patent Laid-Open No. 2000-106159, with reference to FIG. 12 [Summary of the Invention] 97958.doc 1245728 and =: Patent, the electric vehicle as a hybrid vehicle, connected to the seatpost: engine-limited space ' The engine and generator are arranged up and down. Therefore, there is a problem that it is difficult to secure a fixed space such as an installation space of constituent members connected to an intake and exhaust device of an engine. It is particularly desirable to lower the feature of 4 = as far as possible and install the filter on the upper part of the engine as much as possible. Refer to the design of the various components of the Kongtong system and the rear direction of the rotation axis of the engine and generator. The directions are approximately orthogonal. A crankshaft with a fixed length = the long part of the shaft of the machine and the width of the vehicle becomes larger. The appearance is not good. The present invention is _...! Γ: Γ, and operability is reduced. : Induction Motor ’can ensure a fixed space above the engine and generator. Β Taixin reduces the width of the swing unit and the light weight of the electric vehicle. The invention of the swinging arm unit adopts the following structure: the power unit with damage ... has an integrated double lead; 9 Yishan Duan ', or. The generator of the generator is driven by the drive of the arm Taixu engine, and is connected to one end side freely Shaking the ground shaft mounted on the vehicle body = too, and the axle support wheels at the other end side; and the motor, which is provided in the former, m: the wheels are driven by the electric power of the generator described in the last paragraph = force early 70 is installed in the aforementioned arm Made of the aforementioned -end portion of the body. Χ β constitutes a 'power unit with an engine and a generator on the end side ^ mounted on the pure body of the car, and on the other end side is set on one end of the arm body of the axle support =, so it becomes an integrated ground fixture, and The structure of the wheel 'only the pivot arm unit is mounted on the vehicle body 97958.doc 1 ^ 4 ^ 728 frame. Compared with the structure of the moving n body frame of the engine and generator, the power can be reduced. It is difficult for a vehicle to transmit vibrations to the vehicle body. In addition, since the body is equipped with a power unit, the swing arm unit is mounted on the frame of the vehicle body, and the wheels, so that only the vehicle is mounted. It is not necessary to separately mount the drive. The swing arm unit of the present invention is constituted by a moving part and a drive part. The rotating shaft of the motor is integrated with the aforementioned crankshaft. The structure is based on the above. According to the above configuration, the generator ’s rotating shaft must be separately integrated as necessary. ^ # 马 ”The crankshaft is integrated, and there is no reason to sigh the drive transmission mechanism. Those who are powerful enough to power generators can make long movements Λ w _ a crankshaft rotation drive "a certain miniaturization of the early forest. The present swing arm unit is arranged on the crankshaft of the aforementioned engine and is mounted on the lower part of the shaft. The aforementioned forward and backward directions. According to this structure of the "Car I forest frame", the crank integrated with the rotating shaft, 泸 xiyi, +, and the other, because the front and rear of the vehicle body frame, which is arranged on the shaft-mounted arm body, are in the universal, and the crank shaft does not protrude. Car-The width of the car can be made smaller. Therefore, 'the driver can easily cross when the vehicle is mounted with a swing arm unit, and the pendulum unit of the present invention adopts the following configuration in the aforementioned configuration. The aforementioned crankshaft arrangement On the plane passing through the centerline of the wheel width or near the plane. According to the 4 configuration, the crankshaft driven by rotation is disposed in the middle of the wheel width. On the plane of the line or near the plane, the swing arm unit is installed. The 'vehicle' is driven by the rotation of the crank shaft, and the overall balance of the vehicle will not be reduced. 97958.doc 1245728. The swing arm unit of the present invention adopts the following configuration to the aforementioned end portion of the arm body, which is: The mima shaft is coaxial with the aforementioned wheel shaft. ^ The rotation of the motor is based on this structure, and the drive shaft is supported on the other end portion of the arm body because it is arranged on the other end portion. On-end configuration engine of the body: The swing of the wheel driven by the end of the horse's end is supported by the horse's horse power of the engine = the difference between the engine and the wheel, that is, the arm does not need a drive shaft, power source ( Moving π and / or between the other ends, the structure can prevent the weight of the part from increasing, and can also reduce the number of parts. In addition, it is not necessary to provide a mechanism for transmitting driving force between the wheel and the motor to further seek the parts. Reduce the number and weight. 冓 'Structure = Ming electric vehicle adopts the swing arm unit with the above structure. This is because the swing arm unit with the above structure can be used as the entire handle. Placed in a low position, the upper part of the moving m can form a space for other devices .. ^ The center of gravity can be lowered, and the vehicle can run stably. X, the engine is formed on the swing arm supporting the wheel, and it is difficult to pass. Due to the integrated body of the vehicle, the influence of the vehicle on the driver can be reduced. The electric vehicle '4-' 1 of the present invention is made of a tough electric vehicle. There is a configuration in which the aforementioned power unit is disposed in the aforementioned needle " M, and the two-mentioned swing arm unit is equipped with a handle 摅, and is wheel-mounted in the aforementioned frame portion. According to the structure, the power unit in the swing arm unit is arranged in-pair 97958. doc 1245728 The power unit can be well arranged between a pair of frame sections and a frame closing section, and a vehicle equipped with the swing arm unit. The electric vehicle of the present invention adopts the following configuration in the aforementioned configuration: the upper part of the aforementioned pair of frame sections Install the seat. According to the premise, because the power unit is arranged between the pair of frame parts under the seat, it is in a state of good configuration and storage, and the power unit “odd room” can be widely used to increase the fuel tank. This is related to the installation of the storage compartment, etc. As described above, according to the present invention, the engine and the generator can be arranged at a low position in the auxiliary vehicle. In addition, the vehicle width can be reduced. [Embodiment] The main purpose of the present invention is to provide a swing arm unit not previously available, which is a generator driven by an engine, and the electric power of the generator is used to drive a wheeled hybrid electric vehicle. Those engines and generators may be placed at a low position. Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. Fig. 1 is a perspective view showing an external appearance of an electric vehicle according to an embodiment of the present invention. The electric vehicle 100 shown in FIG. 1 is a self-propelled electric locomotive with a bottom bone type having a pedal 105. FIG. 2 is a perspective view of the electric vehicle in a state where a frame cover portion is removed in FIG. 1. FIG. FIG. 2 shows the electric vehicle in a state where the front cover 131, the body cover 133 under the seat, the frame cover portion 135 of the pedal cover 135, and the like are removed from FIG. FIG. 3 is a left side view showing the essential structure of an electric vehicle according to the embodiment of the present invention. It is to be noted that in Fig. 3 ', the chemical oil mounted on the power unit 200 is 220 (see Fig. 2) and the intake pipe 22c. As shown in FIGS. 1 to 3, the electric vehicle auxiliary 100 includes a vehicle body frame seat 120, a frame cover portion 130, a battery 14o, a control portion, and a swing arm unit. The frame cover portion 130 includes a front cover 131, a main body cover 133, a pedal cover 135, and the like. The mobile unit 300 includes a power unit 200, which is integrally provided with an engine 2 10 and a generator 25 which generates power by driving the engine 21o; an arm body _, which is connected to an end portion (at This is the front end of the vehicle. The shaft is mounted on the frame 110 of the vehicle body, and the wheels (rear wheels) 33 and the motor 350 are mounted on the arm body 34. The rear wheel 330 is driven by the electric power of the generator 250. Baixian is explained by the frame configuration of the electric vehicle 100 in which the swing arm unit 300 is installed. As shown in FIGS. 1 to 3, the vehicle body frame section 丨 丨 〇 has a hand post lower part 113, which extends from the hand post 丨 1 丨 toward the rear of the vehicle to below the seat 120; and the seat post 115 It is connected to the lower part of the lower tube η and the lower part is connected to the upper part to support the seat 120. A radiator 141 is mounted below the rear portion of the seat 120. The lower tube 113 includes a pair of tube portions U3a arranged oppositely. Each tube section 丨 丨 has a s 邛 11 3 1 which is lowered from the hand post ii 丨 to the rear, and a rear tube section 11 32 which is connected to the lower end of the front tube section Π 3 1 and is slightly horizontal. Extend the vehicle body from the lowest ground height to the rear, and form a pedal 105 on top. A pair of front tube sections 113 1 cover a part of the front with a front cover 3 1 (see 97958.doc -10- 1245728 Fig. 1). A battery 140 (see Fig. 2) is arranged between the pair of front tubes 11 31 and the inside of the front cover 1 31. The battery 140 is connected to a motor 35o, a control unit ι50, and a generator 250 described later via a cable. In addition, the battery 140 includes a nickel-hydrogen battery, a nickel-cadmium battery, a lithium-ion battery, and the like. In addition, a pedal 105 portion between a pair of rear pipe portions 1132 (see FIG. U is provided with a control portion 150 covered by a pedal cover 135. The control portion 150 is connected to a motor 350, a battery 140, a power unit 200, and Throttle rods and the like (not shown) electrically control the entire electric vehicle 100. Furthermore, at the rear end portions of the pair of rear pipe portions 1132, the lower end portions of the pair of pillar members 115a constituting one of the pillars 115 are joined. The pillars 115 & are arranged on the left and right sides of each other from the bottom to stand along the front of the rear wheel 3 3 0, and are arranged so as to extend to the rear obliquely upward. The seat pillar 11 5 series has a pair of pillars 丨5a; U-shaped seat frame (not shown), which is joined to extend approximately horizontally from the upper part of a pair of pillars 115 & to the front of the car body, supporting the seat 12 inside the seat 12 〇 The front part and the supporting pipe (not shown) are erected between the seat frame and the pillar 115 a. A seat 120 ′ is arranged on the upper part of these pillars 115 a and the top of the seat frame. A fuel tank (not shown) is disposed inside the seat 120. Further, between the pillars 115a, An air filter boundary 122 is arranged below the chair 12o. &Quot; °. A front end portion of a swing arm unit 300 is disposed below the air filter i 22, and the swing arm unit 300 is attached to a pair of rear pipe portions 1132. 97958.doc 1245728 swing arm unit 300 is arranged between the rear end portions, and is pivotally mounted on the shaft via a pivot 162. Fig. 4 is an exploded perspective view showing a mounting structure of the swing arm unit. As shown in Fig. 4, in a pair of rear tubes The rear ends of the portions 1132 form ribs 1133 that protrude downward. The ribs 1133 form pivot holes 11 3 4 opposite to each other. On the other hand, on the lower side of the front end of the swing arm unit 300, A through hole 302 is formed horizontally in a direction orthogonal to the front-rear direction of the vehicle body. Then, a cylindrical central pivot lever 304 is installed inside the through hole 302 at a slightly central portion, and the pivot Both sides of the shaft 304 are provided with a cylindrical pivot collar 306 which is press-fitted into the through hole 3. A pivot washer 3 08 is disposed outside the pivot collar 306, and a pivot washer and a pivot washer 308 are disposed. Inside, the cylindrical pivot lever 31 is inserted from the outside. Then, the pivot 162 passes A washer 312 disposed on one side of the outside is inserted into a pivot hole 3134 in a pivot hole 1134 'through hole 30 of the rib 1133, a pivot washer 308, a pivot collar 306, and a central pivot rod 3104 and the other side via the pivot hole ι134 of the outside 1133 of the ribs 11 33 arranged on the other side are fixed through the 酉; washer 3 12 with the nut 3 丨 4. By the pivot 162, swing The arm unit 300 is extended from the rear pipe portion 1132 to the rear and is fixed freely to shake. The arm unit 300 is shaken with the swing arm unit 300. Pivot collars 3 06 and pivot washers 3 08 are provided at the swing arm unit 300, at 300, and the upper part of the through hole 302
97958.doc -12- 1245728 置之側面圖。再者’於圖7,為了容易顯示動力單元内部的 :部構成要素，部分地斷開動力單元。又，圖8為同擺動臂 ,兀的部分斷開之上面圖。又，於圖8，部分地斷開擺動 臂單元的動力單元部分、後輪部分及馬達部分。 ，動力單元200的引擎210為頂置閥門型的單汽缸2閥門 型:於該引擎21〇,於曲柄箱230的上部與曲柄軸213正交配 置A缸224，於該汽缸224的上部設置汽缸蓋215。 於該汽缸蓋215’朝向車輛前側開口而形成連通至自由開 閉地配置於内部之吸氣閥216之吸氣口 217。又，於該汽缸 蓋215，朝向車輛後方開口而形成連通至自由開閉地配置於 汽缸蓋215内部之排氣閥218之排氣口 219。 吸氣口 217係於吸氣口 217的前側配置未圖示之化油器而 成為可連接。 又，排氣口 219係經由未圖示之排氣管連接至消音器。 吸氣閥216及排氣閥21 8係吸氣口 21 7及排氣口 21 9均於車 體前後方向的軸線上，亦即曲柄軸213的正上方，與曲柄軸 213的軸線略平行地並列配設。又，該等吸氣閥2丨6及排氣 閥2 1 8係連結至曲柄軸213，藉由未圖示之鎖臂上下自由開 閉地構成。又，汽缸蓋215的上部係藉由頭蓋215a覆蓋。 汽缸224内的活塞226的下端部，經由連桿228連接至曲柄 軸 213 〇 曲柄軸213係於曲柄箱230内，配置於略水平方向上，且 臂本體340的延長方向，亦即車體的前後方向的軸線上，藉 由活塞226的上下動，經由連桿228旋轉驅動。該曲柄軸213 97958.doc -13- 1245728 係平面視，配置於後輪3 3 0的略中心線上，亦即通過後輪3 3 〇 覓之中心線之平面上或是該平面近旁。又，通過後輪 寬的中心線之平面係為略垂直平面。 又，如於圖8所顯示，於曲柄軸213的左右兩側，沿著曲 柄軸213設置中間軸231、232。 該等中間軸231、232係藉由未圖示之齒輪部，與曲柄軸 213的旋轉驅動連動，與曲柄軸213的旋轉方向反方向地旋 轉。藉此，中間軸23 1、232係打消曲柄軸2丨3的慣性力，衰 減因曲柄軸213的旋轉驅動而產生之滾動。 於曲柄箱230的前部接合發電機25〇，發電機25〇係具備成 為轉軸之曲柄軸213的前部分213a;接合於前部分2Ua的 前端部之定子253 ;線圈255，其係於與定子253的旋轉方向 正父之方向捲繞者；及磁鐵部257，其係於定子253的旋轉 方向的外圍部份，與定子253離間配置者。 發電機250係連接至電池140，藉由曲柄軸21 3的旋轉而發 電，供給發電力至電池140。供給至電池14〇之電力係經由 配線纜線供電至馬達350。 馬達350係一體地設置於臂本體34〇的他端部（於此為後 端部），其旋轉軸352係配置於與車體的前後方向正交之方 白再者’方疋轉軸3 5 2係與後輪3 3 0的車軸一體地形成，具 有同一軸心。經由該旋轉軸352部分，後輪33〇軸支於臂本 體 340 〇 又，該馬達350若是設置於擺動臂單元3〇〇，如何設置皆 可。例如，配置於擺動臂單元300的中央部分亦可，作為配 97958.doc -14- 1245728 置於前端部側之構成亦可。於圖9顯示其變形例。 圖9為顯示擺動臂單元的變形例之概略平面圖。 於顯示於圖9之擺動臂單元300a，於一端部設置動力單元 200，於他端部側軸支後輪（車輪）33〇之臂本體34〇的中央部 分上’配置旋轉驅動車輪330之馬35〇a。 馬達350a及車輪330成為經由錐齒輪等的動力傳送機構 傳送旋轉力之構成。 再者，馬達350的旋轉軸的方向以在車寬方向延伸之方式 δ又置亦可，或以在車輛的前後方向延伸之方式設置亦可。 馬達350的旋轉軸若與驅動輪、於此與後輪33〇的旋轉軸平 行，則可使其間的動力傳送機構成為簡易的構成。 臂本體340係具有中空部，於内部配設由擺動臂單元3〇〇 的前端部側延伸，電性地連接電池14〇及馬達35〇之配線繞 線。 又，於臂本體340的中央部分及左側的柱材115&間介設後 懸吊裝置164。 如此構成之電動車輛100，使引擎21 0驅動，使發電機250 旋轉驅動而發電，發電機250的發電力經由配線纜線供給至 電池140。供給電力之電池140經由配線線，供給驅動電力 至使後輪330旋轉驅動之馬達350。 然後，供給驅動電力之馬達350藉由控制部150，供給未 圖示之節流部的開度，亦即成為駕駛者希望之速度之量的 電流至馬達350，使電動車輛1〇〇本身行駛。 亦即，於電動車輛100,引擎210不採用直接驅動驅動輪， 97958.doc -15- 1245728 於此驅動後輪330之構成，引擎210成為用以使發電機25〇 驅動。因此，為驅動輪之後輪3 3〇經由電池14〇，藉由來自 發電機250供給之電力而驅動。因此，於該構成的電動車輛 1 〇〇，不論節流部的開閉如何，可使引擎的旋轉數一定。亦 即，於空轉時與急加速時等，因為沒有引擎21〇直接驅動後 輪，旋轉數不急劇地變動。因此，可減低環境污染物質。 根據本實施方式，於動力單元2〇〇，發電機25〇的轉軸構 成作為引擎210的曲柄軸213的前部分213a，並且曲柄軸213 係配置於車體的前後方向，詳細係與車體的軸線約略一致 之位置。 因此，於車體的前後方向並列發電機25〇及引擎21〇，成 為沿著車體的前後方向配置動力單元2〇〇本身之狀態，發電 機250及引擎210並不上下地並列，可於動力單元2〇〇的上 方確保一定的空間。 又，因為曲柄軸213於車體的前後方向一致，於座椅12〇 的下方，配置於柱材115&間，曲柄軸213不突出於車寬方 向可使車寬較小。藉此，駕駛者跨越之際，可容易地跨 越。 又，具有引擎210之動力單元2〇〇一體地形成於以樞軸162 ^裝於為車輛本體框部11〇的一部分之後管部ιΐ32之擺動 臂單元300,而可將動力單元2〇〇的配置位置作為車體全體 配置於低的位置，於動力單元2〇〇的上冑，例如可形成配置 空氣濾清器122等其他裝置之空間。 又，使重心降低，可使車輛實現穩定之行駛。又，難以 97958.doc -16- 1245728 傳達引擎2 1 〇之振動至車輛本體，可縮小車輛對駕駛者之影 著°羊細而δ，引擎21 〇之振動隨著路面行駛之振動，為介 於擺動臂單元300及柱材U5a之間的懸吊裝置164所吸收。 本實施方式的擺動臂單元300成為一體地具備動力單元 200、馬達350及後輪330之構成。因此，只於後管部軸 裝擺動臂單元300,比較起引擎2 10及發電機25〇等的動力單 元200直接安裝於車體本體框架之構成，可降低動力單元 200的配置位置。又，只於後管部1132軸裝擺動臂單元3〇〇， 成為格載構成驅動部分之裝置之車輛，沒有必要個別地於 車輛本體框部安裝構成該驅動部分之裝置。 又’因為使發電機250的轉軸部分與曲柄軸21 3—體化， :又有必要另外设置傳送曲柄軸213的旋轉驅動力至發電機 2 5 0之驅動傳送機構，可謀求動力單元本身的小型化。 再.者’與轉軸一體之曲柄軸213因為配置於臂本體340的 延長方向，曲柄軸213並不突出於車寬方向，可使車寬較 小。因此，於駕駛者跨越具有擺動臂單元300之電動車輛1〇() 之際 可各易地跨越’並且外觀亦佳。 再者，旋轉驅動之曲柄軸213因為與車輪寬的中心線略平 行地配置於通過車輪寬的中心線之略為垂直的平面上或是 其近旁，於電動車輛100，不會因曲柄軸213的旋轉驅動而 車輛全體的平衡降低。 再者’動力單元200於座椅120下方，因為配置於一對後 官部1132間，於座椅12〇的下方，可於一對後管部1132間收 納良好地使動力單元200配置。又，可寬廣地採用動力單元 97958.doc -17- 1245728 200及座椅120之間的空間，可增大燃料槽及置物箱等等， 於本實施型態係空氣濾清器122的設置的自由度。 又’根據本實施方式，吸氣口 217及排氣口 219因為各個 逆向地開口於曲柄軸213的軸線方向，於車體的前後方向可 分別安裝化油器等的吸氣系統、排氣管，構成化油器、排 氣管等的吸排氣系統之部件並不突出於車寬方向配置，可 使該部分的車寬較小。 又，猎由於吸氣口 217的 電機250的上部，且於車輛的前後方向的轴線上，化油器並 不突出於車體寬度方向。再者，藉由使化油器配置於車寬 的中心線上，縮小引擎210驅動等於行駛時之振動的左右 搖晃而可在安定之狀態使混合氣流至吸氣口2〗7。 又’若是形成藉由-體地設於擺動臂單元3〇〇的後端部之 馬達350㈣驅動輪之構成，沒有必要於擺動臂單元綱的 :端部至後端部間設置傳動軸等的傳動機構，只於臂本體 =内通過連接馬達350及電池14〇之物可。因此，可 使侍擺動臂單元3〇〇的中央 傳動機構的部分的重量的增加，：广缚。再者，可防止 成U七 外加可謀求零件件數的削 構，可進置於車輪及馬達之間傳送驅動力之機 再者：Γ零件件數的削減、重量的減低。 於此，若θ β I …、乍為電動機車說明，但不限 馬達行：::：由引擎驅動之發電機及藉由發電機驅動之 适仃駛之車輛，則可適用於 輪車、電動四輪車等亦可 7之車輛’例如為電動三 ’於本實施方式的電動車 97958.doc 1245728 輛100，雖然以後輪33〇作為驅動輪說明，但不限於此，即 使以别輪作為驅動輪之電動車輛亦可。 又，於本實施方式，成為藉由擺動臂單元300以單持式支 持後輪330之構造，但不限於此，為雙持式亦可。例如將擺 動臂單元的構造於電動車100之一對後管部1132的後端部 各個上，自由轉動地軸裝基端部，延長於後輪的兩側 方，並於其前端部自由轉動地使後輪33()的軸部持。 【產業上的利用可能性】 關於本發明之擺動臂單元及電動車輛具有可於車輛以低 :置，置引擎及發電機之效果，作為使用引擎驅動發電 機，藉由發電機的發電電力驅動馬達而驅動車輪之混合式 車輛有效。 【圖式簡單說明】 圖1為顯示關於本發明的一實施方式之電動車輛的構成 之立體圖。 圖2為顯示於圖1取下框蓋部之狀態之電動車輛的立體 圖。 ，為說明關於本發明的一實施方式之電動車輛的擺動 #早凡内的要部構成的配置之側面圖。 圖4為顯不擺動臂單元的安裝構造之分解立體圖。 圖5為同擺動臂單元之側面圖。 圖6為同擺動臂單元之正面圖。 圖7為顯不同擺勤辟 面圖。 傀動是早兀内之要部構成之配置位置之側 97958.doc -19- 1245728 圖8為同擺動臂單元之一部分斷開之上面圖。 圖9為顯示關於本發明的一實施方式之電動車輛之擺動 臂單元的變形例的要部構成之圖。 【主要元件符號說明】 100 電動車輛 115a 柱材（一對框部） 120 座椅 162 樞軸 200 動力單元 210 引擎 213 曲柄軸 213a 曲柄軸的前部分 250 發電機 300 、 300a 擺動臂單元 302 貫通孔 330 後輪（車輪） 340 臂本體 350 、 350a 馬達 1132 後管部 97958.doc -20-97958.doc -12- 1245728 side view of the home. Furthermore, in FIG. 7, in order to easily display the components of the power unit, the power unit is partially disconnected. Fig. 8 is a top view of the same part of the swing arm. In Fig. 8, the power unit part, the rear wheel part, and the motor part of the swing arm unit are partially disconnected. The engine 210 of the power unit 200 is a single-cylinder 2 valve type of overhead valve type: in the engine 21, an A cylinder 224 is arranged orthogonally to the crank shaft 213 on the upper part of the crank case 230, and a cylinder is provided on the upper part of the cylinder 224 Cover 215. The cylinder head 215 'is opened toward the front side of the vehicle to form an intake port 217 that communicates with an intake valve 216 that is freely opened and closed. The cylinder head 215 is opened toward the rear of the vehicle to form an exhaust port 219 that communicates with an exhaust valve 218 disposed inside the cylinder head 215 so as to open and close freely. The suction port 217 is connected to a carburetor (not shown) in front of the suction port 217. The exhaust port 219 is connected to a muffler via an exhaust pipe (not shown). The intake valve 216 and the exhaust valve 21 8 are both the intake port 21 7 and the exhaust port 21 9 on the axis in the front-rear direction of the vehicle body, that is, directly above the crank shaft 213 and slightly parallel to the axis of the crank shaft 213 Side by side. The intake valves 2 and 6 and the exhaust valve 2 1 8 are connected to the crank shaft 213, and are configured to be opened and closed freely by a lock arm (not shown). The upper part of the cylinder head 215 is covered by a head cover 215a. The lower end of the piston 226 in the cylinder 224 is connected to the crankshaft 213 via a connecting rod 228. The crankshaft 213 is located in the crankcase 230, is arranged in a slightly horizontal direction, and the extension direction of the arm body 340, that is, the On the axis in the front-rear direction, the piston 226 moves up and down and is rotationally driven via the link 228. The crank shaft 213 97958.doc -13- 1245728 is a plan view, and is arranged on the approximate center line of the rear wheel 3 3 0, that is, on the plane through the center line of the rear wheel 3 3 0 or near the plane. The plane passing through the center line of the rear wheel width is a slightly vertical plane. In addition, as shown in Fig. 8, intermediate shafts 231 and 232 are provided along the crank shaft 213 on the left and right sides of the crank shaft 213. The intermediate shafts 231 and 232 are linked with the rotation driving of the crank shaft 213 through a gear portion (not shown), and rotate in the opposite direction to the rotation direction of the crank shaft 213. Thereby, the intermediate shafts 23 1 and 232 cancel the inertial force of the crank shafts 2 and 3 and attenuate the rolling caused by the rotational driving of the crank shaft 213. A generator 25 is connected to the front of the crank case 230, and the generator 25 is provided with a front portion 213a of a crank shaft 213 serving as a rotating shaft; a stator 253 connected to a front end of the front portion 2Ua; and a coil 255, which is connected to the stator The winding part of the direction of rotation of 253 is the winding person; and the magnet part 257 is connected to the peripheral part of the rotating direction of the stator 253 and is located away from the stator 253. The generator 250 is connected to the battery 140 and generates power by rotation of the crank shaft 21 3 to supply the generated power to the battery 140. The electric power supplied to the battery 14 is supplied to the motor 350 via a distribution cable. The motor 350 is integrally provided at the other end portion (herein, the rear end portion) of the arm body 34, and the rotation shaft 352 thereof is disposed at the side of the square body orthogonal to the front-rear direction of the vehicle body. The 2 series is formed integrally with the axle of the rear wheel 3 3 0 and has the same axis. Via the rotating shaft 352 part, the rear wheel 33 is axially supported by the arm body 340. The motor 350 may be installed as long as it is installed in the swing arm unit 300. For example, it may be arranged at the center portion of the swing arm unit 300, and it may also be a configuration in which it is placed on the front end side as 97958.doc -14-1245728. A modification example is shown in FIG. 9. Fig. 9 is a schematic plan view showing a modification of the swing arm unit. On the swing arm unit 300 a shown in FIG. 9, a power unit 200 is provided at one end, and a horse of a rotation driving wheel 330 is disposed on the central portion of the arm body 34 of the rear axle (wheel) 33 of the other end side. 35〇a. The motor 350a and the wheel 330 are configured to transmit rotational force via a power transmission mechanism such as a bevel gear. In addition, the direction of the rotation axis of the motor 350 may be δ so as to extend in the vehicle width direction, or may be provided so as to extend in the front-rear direction of the vehicle. If the rotating shaft of the motor 350 is parallel to the driving shaft and here to the rotating shaft of the rear wheel 33o, the power transmission mechanism therebetween can be simplified. The arm body 340 has a hollow portion, and is provided with an inner portion extending from the front end portion side of the swing arm unit 300, and electrically connecting the wiring of the battery 14 and the motor 35. Further, a rear suspension device 164 is interposed between the central part of the arm body 340 and the pillars 115 & The electric vehicle 100 configured as described above drives the engine 210 and rotates the generator 250 to generate electricity, and the power generated by the generator 250 is supplied to the battery 140 via a power distribution cable. The power-supply battery 140 supplies driving power to a motor 350 that rotates and drives the rear wheels 330 via a wiring line. Then, the motor 350 that supplies driving power supplies the opening of the throttle unit (not shown), which is a current at a speed desired by the driver, to the motor 350 through the control unit 150, and causes the electric vehicle 100 to run. . That is, in the electric vehicle 100, the engine 210 does not use a direct drive driving wheel, and 97958.doc -15-1245728 here drives the rear wheel 330. The engine 210 is used to drive the generator 25. Therefore, the rear wheel 3 30 is driven by the electric power supplied from the generator 250 via the battery 14 40 for driving the rear wheel. Therefore, in the electric vehicle 100 having this configuration, the number of rotations of the engine can be made constant regardless of the opening and closing of the throttle portion. In other words, during idling and rapid acceleration, the engine does not directly drive the rear wheels, so the number of revolutions does not change sharply. Therefore, environmental pollutants can be reduced. According to this embodiment, the rotating shaft of the power unit 200 and the generator 250 constitutes a front portion 213a of the crank shaft 213 of the engine 210, and the crank shaft 213 is arranged in the front-rear direction of the vehicle body, and is in detail related to the The axis is approximately uniform. Therefore, the generator 25 and the engine 21 are juxtaposed in the front-rear direction of the vehicle body, and the power unit 2000 itself is arranged along the front-rear direction of the car body. The generator 250 and the engine 210 are not juxtaposed vertically. A certain space is ensured above the power unit 200. In addition, because the crank shaft 213 is aligned with the front-rear direction of the vehicle body, and is arranged between the pillars 115 & below the seat 120, the crank shaft 213 does not protrude in the vehicle width direction to make the vehicle width smaller. This makes it easy for drivers to cross. In addition, the power unit 2000 having the engine 210 is integrally formed with the pivot arm 162 and the swing arm unit 300 mounted on the pipe portion 32 after being part of the frame portion 110 of the vehicle body, and the power unit 200 can be integrated. The arrangement position of the vehicle body is arranged at a low position as a whole of the vehicle body, and on the upper part of the power unit 2000, for example, a space in which other devices such as the air cleaner 122 are disposed can be formed. In addition, lowering the center of gravity enables stable driving of the vehicle. In addition, it is difficult for 97958.doc -16- 1245728 to transmit the vibration of the engine 2 1 〇 to the vehicle body, which can reduce the impact of the vehicle on the driver. ° Sheep is thin and δ. It is absorbed by the suspension device 164 between the swing arm unit 300 and the pillar U5a. The swing arm unit 300 according to the present embodiment is configured to include a power unit 200, a motor 350, and a rear wheel 330 integrally. Therefore, the swing arm unit 300 is only mounted on the rear pipe, and the power unit 200 can be lowered in comparison with the structure in which the power unit 200 such as the engine 210 and the generator 25 is directly mounted on the body frame. In addition, only the rear arm portion 1132 is provided with the swing arm unit 300 as a vehicle for mounting the device constituting the driving portion. It is not necessary to separately install the device constituting the driving portion on the frame portion of the vehicle body. Also, because the rotating shaft portion of the generator 250 and the crank shaft 21 are integrated, it is necessary to separately provide a drive transmission mechanism for transmitting the rotational driving force of the crank shaft 213 to the generator 250, so that the power unit itself can be obtained. miniaturization. Furthermore, since the crank shaft 213 integrated with the rotating shaft is disposed in the extension direction of the arm body 340, the crank shaft 213 does not protrude in the vehicle width direction, and the vehicle width can be made smaller. Therefore, when the driver crosses the electric vehicle 10 () having the swing arm unit 300, the driver can easily cross it 'and the appearance is good. In addition, because the crank shaft 213 of the rotary drive is arranged slightly parallel to or near the center line of the wheel width on a plane that is slightly perpendicular to the center line of the wheel width, the electric vehicle 100 is not affected by the crank shaft 213. The rotation is driven and the balance of the entire vehicle is reduced. Furthermore, the power unit 200 is disposed below the seat 120 because it is disposed between the pair of rear seat portions 1132, and below the seat 120, the power unit 200 can be accommodated well between the pair of rear pipe portions 1132. In addition, the space between the power unit 97958.doc -17- 1245728 200 and the seat 120 can be widely used, and the fuel tank and the storage box can be enlarged. Degrees of freedom. According to this embodiment, since the intake port 217 and the exhaust port 219 are each opened in the axial direction of the crank shaft 213 in the opposite direction, an intake system such as a carburetor and an exhaust pipe can be installed in the front-rear direction of the vehicle body, respectively. The components constituting the suction and exhaust system of the carburetor, the exhaust pipe and the like do not protrude from the vehicle width direction, and the vehicle width of the part can be made smaller. In addition, the carburetor does not protrude from the width of the vehicle body due to the upper portion of the motor 250 of the suction port 217 on the axis in the front-rear direction of the vehicle. Furthermore, by disposing the carburetor on the center line of the vehicle width, driving the engine 210 down and down is equivalent to the left and right shake of the vibration during driving, and the mixed air flow can be brought to the suction port 2 in a stable state. Also, if it is constituted by a motor 350㈣ driving wheel provided at the rear end of the swing arm unit 300 in a body, there is no need for the swing arm unit: a drive shaft is provided between the end and the rear end. The transmission mechanism can only be connected to the motor 350 and the battery 14 inside the arm body. Therefore, it is possible to increase the weight of a part of the central transmission mechanism of the swing arm unit 300; Furthermore, it can prevent the formation of U-7, plus the number of parts that can be obtained, and can be placed between the wheels and the motor to transmit the driving force. Furthermore: Γ The number of parts can be reduced and the weight can be reduced. Here, if θ β I… is a description of electric vehicles, but not limited to motors: ::: Engine-driven generators and suitable vehicles driven by generators, it can be applied to wheeled vehicles, An electric vehicle such as an electric four-wheeler can also be an electric vehicle such as an electric three. In the electric vehicle 97958.doc 1245728 100 in this embodiment, although the following wheel 33 is described as the driving wheel, it is not limited to this, even if another wheel is used as Electric vehicles with driving wheels are also possible. In the present embodiment, the rear arm 330 is supported by the swing arm unit 300 in a single-hold type, but it is not limited to this, and it may be a dual-hold type. For example, the swing arm unit is structured on each of the rear end portions of one pair of rear tube portions 1132 of the electric vehicle 100, and the base end portion is freely rotatable, extended on both sides of the rear wheel, and freely rotated on the front end portion. The shaft portion of the rear wheel 33 () is held. [Industrial Applicability] The swing arm unit and electric vehicle of the present invention have the effect that the engine and the generator can be installed at a low position in the vehicle. The engine is used to drive the generator and is driven by the power generated by the generator. Hybrid vehicles with motors and wheels are effective. [Brief Description of the Drawings] Fig. 1 is a perspective view showing a configuration of an electric vehicle according to an embodiment of the present invention. FIG. 2 is a perspective view of the electric vehicle in a state where a frame cover portion is removed in FIG. 1. FIG. This is a side view for explaining the arrangement of the main parts of the electric vehicle according to one embodiment of the present invention. FIG. 4 is an exploded perspective view showing a mounting structure of the swing arm unit. Fig. 5 is a side view of the same swing arm unit. Fig. 6 is a front view of the swing arm unit. Figure 7 is a diagram showing the different operations. The movement is the side of the arrangement position of the main part in the early stage. 97958.doc -19- 1245728 Figure 8 is a top view of a part disconnected from the swing arm unit. Fig. 9 is a diagram showing a configuration of a main part of a modified example of a swing arm unit of an electric vehicle according to an embodiment of the present invention. [Description of main component symbols] 100 Electric vehicle 115a Pillar (a pair of frame parts) 120 Seat 162 Pivot 200 Power unit 210 Engine 213 Crank shaft 213a Crank shaft front part 250 Generator 300, 300a Swing arm unit 302 Through hole 330 rear wheel (wheel) 340 arm body 350, 350a motor 1132 rear tube part 97958.doc -20-