201213189 六、發明說明： 【發明所屬之技術領域】 本發明係關於機車4細言之，本發明係關於具有配置 於曲軸之車寬方向外方之所謂側散熱器之機車。 【先前技術】 先前，例如下述專利文獻】等令揭示有具有所謂側散執 盜之機車。此處’所謂側散熱器，是指配置於曲軸之車寬 方向外方之散熱器。側散熱器通常以不使機車之車寬方向 尺寸變大之方式、並以使接受空氣流之受風面朝向車寬方 向外方之方式配置。另’本說明書中’所謂車寬方向外 方’意指沿著車寬方向且於車寬方向上遠離車體之中心之 方向。又，所謂車寬方向内方，意指沿著車寬方向於車 寬方向上靠近車體之中心之方向。 使用側散熱器之情形中’氣缸蓋與散熱器間之距離"戈 ^缸體與散熱器間之距離會變短。因此，可縮短連接汽缸 與散熱器之冷卻液通路、或連接氣缸體與散熱器之冷卻 液通路。又’使用側散埶器之悴 “一 清形中’可利用曲軸直接驅 動散熱器風扇。因此，難由祐由a 猎由使用側散熱器，可簡化散熱器 周圍之構成。再者，使用你丨斗视^ ⑨用側散熱盜之情形中，無需在引擎 刚確保散熱器及冷卻液通路之配置空間。藉此，侧散轨 "廣泛用於以排氣量小之機車為首之㈣機車卜 如上述，側散熱器以受風面朝向車寬方向外方之方式配 =因此，與平面觀察下朝向前方之一般散熱器不同，側 散熱器不易直接接受空氣流。由此，通常於側散熱器之車 154252.doc 201213189 寬方向内方設有散熱器風扇。送往側散熱器之冷卻風藉由 散熱器風扇而從側散熱器之車寬方.向外方吸入並供給。由 此，為實現散熱器中冷卻液之高冷卻效率，於側散熱器之 車寬方向外方不配置側整流罩較佳。藉此，可提高冷卻風 向側散熱器之供給效率。 但是’例如配置後腳踏板之情形等時，需要將側整流罩 延伸至後方。又，有因其他理由而需要將側罩延伸至後方 之情形。於該等情形中’有導致側散熱器前部之一部份被 側整流罩覆蓋之情形。側散熱器前部之一部份由側罩覆蓋 之情形中，有冷卻風向側散熱器之供給效率變低之傾向。 因此’需要講求提高冷卻風向側散熱器之供給效率之一些 方法。 作為提尚冷卻風向側散熱益之供給效率之方法之_，例 如專利文獻1中記載，如圖17所示，設置於車寬方向外方 延伸之散熱片101。藉由設置散熱片101，向後方流動之空 氣流會被導向側散熱器100 ^其結果，可提高冷卻風向側 散熱器100之供給效率。 [先前技術文獻] [專利文獻] [專利文獻1]日本特開2007-106382號公報 【發明内容】 [發明所欲解決之問題] 但’近年來因增大引擎之排氣量之要求等，使得散熱器 所要求之冷卻效率提高。因此，採用側散熱器之機車令， 154252.doc -4· 201213189 要求空氣流向側散熱器之更高之供給效率。 本發明係鑑於該點而完成者，其目的係於機車中提高空 氣流向側散熱器之供給效率。 [解決問題之技術手段] 本發明之機車具備車體框架、置腳部、引擎、散熱器、 :則蓋' 左下蓋、右下蓋。車體框架具有頭管部、向下框架 卩下框架部、後框架部。向下框架部從頭管部向下方延 1下框架部從向下框架部之下端部向後方延伸。後框架 ，從下框架部之後端部向上方延伸。置腳部配置於下框架 部之上方，遍及車寬方向而形成平坦之形狀。引擎具有於 車寬方向延伸之曲軸，且可擺動地被支持於後框架部上。 餘器配置於曲軸之車寬方向外方。側蓋從車寬方向外方 散.、’、器之至少一部份。左下蓋從左側方覆蓋下框架之 Η -部#〇右下蓋從右側方覆蓋下框架部之至少一部 伤又，於車寬方向上左下蓋與右下蓋之間、且於置㈣ 之下方形成有導風通路。導風通路將空氣導入側蓋與散熱 器間之空間。 [發明之效果] 根據本發明，機車中可提高空氣流向側散熱器之供給效 率0 【實施方式】 χ下’針對實施之較佳形態之一列，卩圖i至圖3所示之 作為速克達之機車i為例說明本發明。但，本發明中，機 車不限於速克達β所謂本發明中之機車，意指廣義之摩托 154252.doc 201213189 車。本發明中’機車包含公路型之狹義之摩托車、速克 達、輕型機踏車、越野車等。又，本發明之機車包含由複 數之車輪構成前輪及後輪中至少一方者。 、下說明中，削述左右之方向是指從就座於座椅⑺ 之騎乘者觀察時之方向。 如圖3所示，本實施形態之機車丨具備車體框架9。車體 框架9包含頭管部9a。對頭管部9a可迴轉地插入有轉向軸 9e。於轉向轴96之下端部可迴轉地支持有前輪"。另一方 面，於轉向軸9e之上端部上安裝有把手12 ^ 於後缸頭部〜上連接有向下框架部9b。向下框架部外從 後缸頭部9a向下方延伸。於向下框架部％之下端部上連接 有下框架部9c。下框架部9c從向下框架部外之下端部大致 水平地向後方延伸。於下框架部氕之後端部連接有後框架 部9d。後框架部9(1從下框架部％之後端部向後方於斜上^ 延伸。更詳細言之，如圖2所示，向下框架部外具有右向 下框架部9bl與左向下框架部9b2。下框架部9c具有右下框 架部9cl與左下框架部9c2。後框架部^具有右後框架邛 9CU與左後框架部9d2。又，右後框架部9di與左後框架部 9d2由連結框架部9fl、9f2連結。 於車體框架9上安裝有座椅10，座椅1〇配置於後框架部 9d之上方。於座椅1〇之下方，如圖2所示，配置有作為後 置腳部之右後腳踏板18a與左後腳踏板18卜該等後腳踏板 18a、18b配置於後述之側蓋2〇cj之車寬方向外方。 又，如圖1所示，於座椅10之下方配置有單元搖擺式弓丨 154252.doc 201213189 擎15。引擎15可擺動地被支持於車體框架9上。具體言 之，引擎15可擺動地被支持於後框架9d上。於車體框架9 上安裝有柩軸8。於該樞軸8上可擺動地安裝有引擎15之懸 架部15h。 圖4係顯示引擎1 5之一部份之略圖化剖面圖。如圖4所 示’引擎15具備曲軸15a。曲軸15a於車寬方向延伸。即， 曲軸15a之軸線相對於車寬方向為平行。於曲軸i5a上經由 連桿15b連接有未圖示之活塞。活塞配置於在氣缸體15(；上 形成之圓筒狀氣缸15cl内。 曲軸15a之左側端部與變速裝置15d連接。經由該變速裝 置15d使曲軸i5a之迴轉傳遞至輸出軸15e。其結果，使安 裝於輸出轴15e之後輪16迴轉》 另一方面，如圖4及圖5所示，於曲軸i5a之車寬方向外 方配置有散熱器17。具體言之，散熱器17配置於曲軸15a 之右方散熱器17係冷卻用以冷卻圖5所示之氣缸體i5c或 氣缸蓋15g等之冷卻液之裝置。作為冷卻液例如亦可使用 水〇 散熱器17具有接受空氣流之受風面17a。散熱器17以受 風面17&朝向車寬方向外方之方式配置。即，受風面17a之 法線朝向車寬方向之外方。換言之，散熱器17沿著前後方 向配置。本實施形態中，受風面17a之法線與車寬方向平 行。 另所°胃丈風面17a朝向車寬方向之外方，是指受風面 a之法線與車寬方向之外方所成角度為45。以下。 154252.doc 201213189 根據本實施形態，藉由設於曲軸15a之右側端部之散熱 器風扇15f迴轉，而形成從散熱器17之右側向左側之氣 冰。藉由該氣流而冷卻散熱器17及散熱器丨了内之冷卻液。 如圖1所示，車體框架9及引擎15係以車體蓋2〇予以覆 蓋。車體蓋20具備前蓋2〇a、圖6所示之内護板2〇b、圖“斤 示之擋風罩20c、側蓋20d、置腳部21a、圖9所示之右下蓋 21dl、左下蓋21d2、底蓋2U。前蓋2〇&覆蓋頭管部(參照 圖3)之刖方與車輛前部之一部份之側方。如圖6及圖7所 示，内護板20b安裝於前蓋20a下部之前方。另一方面，擋 風罩20c安裝於前蓋2〇a之後方。 如圖1所示，側蓋20d配置於座椅1〇之下方。藉由該側蓋 2〇d而覆蓋引擎15及散熱器17之前方，與引擎^及散熱器 17前部之至少一部份車寬方向之外方。本實施形態中，引 擎15與散熱器17之前部之一部份係以側蓋2〇d覆蓋。 於車輛前後方向在擋風罩20c與側蓋2〇d間之部份配置有 置腳部21a。置腳部21a配置於引擎15及散熱器口之前方。 置腳部21a配置於下框架部9c之上方》置腳部21以系騎乘者 行駛中用以放置腳之部份。如圖2及圖9所示，置腳部2ia 以從車寬方向之一端延伸至另一端之方式平坦地形成。 此處，所謂「置腳部21a為平坦」，是指置腳部21a之車 寬方向上之中央無用以形成通道部之凸部。所謂「置腳部 21a為平坦」，意指騎乘者可將腳放置於置腳部之任一部份 之平坦度》即，置腳部21a上可形成例如用以防滑等之凹 凸。 】54252.doc201213189 VI. Description of the Invention: [Technical Field] The present invention relates to a locomotive 4, and the present invention relates to a locomotive having a so-called side radiator disposed outside the width direction of a crankshaft. [Prior Art] Previously, for example, the following patent documents, etc., disclosed a locomotive having a so-called side scatter. Here, the term "side heat sink" means a heat sink disposed outside the width direction of the crankshaft. The side radiator is usually disposed such that the size of the locomotive in the vehicle width direction is not increased, and the wind receiving surface that receives the air flow is directed outward toward the vehicle width. In the present specification, the term "outside the vehicle width direction" means a direction away from the center of the vehicle body in the vehicle width direction and in the vehicle width direction. Further, the inside of the vehicle width direction means the direction in the vehicle width direction in the vehicle width direction toward the center of the vehicle body. In the case of using the side heat sink, the distance between the cylinder head and the radiator will be shorter than the distance between the cylinder and the radiator. Therefore, the coolant passage connecting the cylinder to the radiator or the coolant passage connecting the cylinder block and the radiator can be shortened. In addition, the use of the side diffuser "a clear shape" can use the crankshaft to directly drive the radiator fan. Therefore, it is difficult to use a side radiator to simplify the composition around the radiator. In the case where you use the side heat thief, you do not need to ensure the space for the radiator and coolant passages in the engine. Therefore, the side track is widely used for locomotives with small displacement (4) The locomotive is as described above, and the side radiator is arranged such that the wind receiving surface faces the outside in the vehicle width direction. Therefore, unlike the general radiator facing forward in plan view, the side radiator is not easy to directly receive the air flow. Side radiator car 154252.doc 201213189 There is a radiator fan in the width direction. The cooling air sent to the side radiator is sucked and supplied from the side of the side radiator to the outside by the radiator fan. Therefore, in order to achieve high cooling efficiency of the coolant in the radiator, it is preferable that the side cowl is not disposed outside the vehicle width direction of the side radiator, thereby improving the supply efficiency of the cooling side radiator. In the case of a foot pedal, etc., it is necessary to extend the side fairing to the rear. Further, there is a case where the side cover needs to be extended to the rear for other reasons. In these cases, there is a part of the front side of the side heat sink. When the part is covered by the side fairing. In the case where one of the front portions of the side heat sink is covered by the side cover, the supply efficiency of the cooling air direction side heat sink tends to be low. Therefore, it is necessary to improve the cooling air direction side heat sink. In the method of improving the supply efficiency of the cooling airflow side, for example, as disclosed in Patent Document 1, as shown in FIG. 17, the heat sink 101 extending outside the vehicle width direction is provided. By providing the fins 101, the air flow flowing backward is guided to the side heat sink 100. As a result, the supply efficiency of the cooling airflow side heat sink 100 can be improved. [Prior Art] [Patent Document] [Patent Document 1] Japan JP-A-2007-106382 SUMMARY OF INVENTION [Problems to be Solved by the Invention] However, in recent years, the cooling efficiency required for a heat sink has been increased by increasing the amount of exhaust gas of an engine. Therefore, the locomotive order using the side radiator, 154252.doc -4·201213189 requires a higher supply efficiency of the air flow to the side radiator. The present invention has been made in view of this point, and its purpose is to improve the air flow side in the locomotive. [Technical means for solving the problem] [The technical means for solving the problem] The locomotive of the present invention includes a vehicle body frame, a footrest portion, an engine, a radiator, and a cover, a left lower cover, and a lower right cover. The body frame has a head pipe portion, The frame portion and the rear frame portion are folded down from the head frame. The lower frame portion extends downward from the head pipe portion. The lower frame portion extends rearward from the lower end portion of the lower frame portion. The rear frame extends upward from the rear end portion of the lower frame portion. The leg portion is disposed above the lower frame portion and has a flat shape over the vehicle width direction. The engine has a crankshaft extending in the vehicle width direction and is swingably supported by the rear frame portion. The remaining device is disposed outside the width direction of the crankshaft. The side cover is scattered from the outside of the vehicle width, and at least one part of the device. The lower left cover covers the lower frame from the left side - the part #〇 The lower right cover covers at least one of the lower frame parts from the right side, and is between the left lower cover and the lower lower cover in the vehicle width direction, and is placed between the lower cover and the lower right cover. An air guiding passage is formed below. The air guiding passage introduces air into the space between the side cover and the radiator. [Effects of the Invention] According to the present invention, the supply efficiency of the air flow to the side heat sink can be improved in the locomotive. [Embodiment] The present invention is directed to one of the preferred embodiments of the present invention, and FIG. The present invention is illustrated by taking the locomotive i as an example. However, in the present invention, the locomotive is not limited to the locomotive of the present invention, and refers to the broad-spectrum motorcycle 154252.doc 201213189. In the present invention, the locomotive includes a narrow type of motorcycle, a speed skating, a light-duty treadmill, an off-road vehicle, and the like. Further, the locomotive of the present invention includes at least one of a front wheel and a rear wheel composed of a plurality of wheels. In the following description, the direction in which the left and right are cut is the direction when viewed from the rider seated on the seat (7). As shown in FIG. 3, the locomotive frame of this embodiment is provided with the vehicle body frame 9. The body frame 9 includes a head pipe portion 9a. A steering shaft 9e is rotatably inserted into the head pipe portion 9a. A front wheel is rotatably supported at a lower end of the steering shaft 96. On the other hand, a handle 12 is attached to the upper end portion of the steering shaft 9e. The lower frame portion 9b is connected to the rear cylinder head portion. The outside of the lower frame portion extends downward from the rear cylinder head portion 9a. A lower frame portion 9c is connected to the lower portion of the lower frame portion %. The lower frame portion 9c extends substantially horizontally rearward from the lower outer end portion of the lower frame portion. A rear frame portion 9d is connected to the rear end portion of the lower frame portion. The rear frame portion 9 (1 extends from the lower frame portion % rear end portion to the rear obliquely upwards. More specifically, as shown in Fig. 2, the lower frame portion has a right down frame portion 9b1 and a left down frame portion. The lower frame portion 9c has a lower right frame portion 9c1 and a lower left frame portion 9c2. The rear frame portion has a right rear frame 邛9CU and a left rear frame portion 9d2. Further, the right rear frame portion 9di and the left rear frame portion 9d2 are The connecting frame portions 9fl and 9f2 are coupled to each other. The seat frame 10 is attached to the vehicle body frame 9, and the seat 1 is disposed above the rear frame portion 9d. Below the seat 1〇, as shown in Fig. 2, The right rear footrest 18a and the left rear footrest 18 of the rear leg are disposed outside the side cover 2〇cj of the side cover 2〇cj to be described later. Further, as shown in FIG. There is a unit swinging bow 154252.doc 201213189. The engine 15 is swingably supported on the body frame 9. Specifically, the engine 15 is swingably supported on the rear frame 9d. A cymbal 8 is mounted on the frame 9. A suspension portion 15h of the engine 15 is swingably mounted on the pivot 8. A schematic cross-sectional view of a portion of the engine 15 is shown in Fig. 4. The engine 15 is provided with a crankshaft 15a. The crankshaft 15a extends in the vehicle width direction. That is, the axis of the crankshaft 15a is parallel with respect to the vehicle width direction. A piston (not shown) is connected to the i5a via a connecting rod 15b. The piston is disposed in a cylindrical cylinder 15cl formed in the cylinder block 15 (the left end portion of the crankshaft 15a is connected to the transmission 15d. Via the shifting device 15d) The rotation of the crankshaft i5a is transmitted to the output shaft 15e. As a result, the wheel 16 is rotated after being attached to the output shaft 15e. On the other hand, as shown in Figs. 4 and 5, heat is disposed outside the vehicle width direction of the crankshaft i5a. Specifically, the radiator 17 is disposed on the right radiator 17 of the crankshaft 15a to cool the cooling liquid for cooling the cylinder block i5c or the cylinder head 15g shown in Fig. 5. As the coolant, for example, The water raft radiator 17 has a wind receiving surface 17a that receives an air flow. The radiator 17 is disposed such that the wind receiving surface 17& is outward in the vehicle width direction. That is, the normal of the wind receiving surface 17a faces the vehicle width direction. In other words, the radiator 17 is along the front. In the present embodiment, the normal line of the wind receiving surface 17a is parallel to the vehicle width direction. The other side of the stomach surface 17a facing the vehicle width direction means the normal line and the vehicle width direction of the wind receiving surface a. The angle formed by the outside is 45. or less. 154252.doc 201213189 According to the present embodiment, the radiator fan 15f provided at the right end portion of the crankshaft 15a is rotated to form the air ice from the right side of the radiator 17 to the left side. The radiator 17 and the radiator are cooled by the air flow. As shown in Fig. 1, the vehicle body frame 9 and the engine 15 are covered by the vehicle body cover 2''. The body cover 20 is provided with a front cover 2〇a, an inner guard 2〇b shown in FIG. 6, a windshield 20c, a side cover 20d, a leg portion 21a, and a right lower cover shown in FIG. 21dl, left lower cover 21d2, bottom cover 2U. The front cover 2〇& covers the side of the head pipe portion (refer to FIG. 3) and the side of the front portion of the vehicle. As shown in FIG. 6 and FIG. The shield 20b is attached to the front of the lower portion of the front cover 20a. On the other hand, the windshield 20c is attached to the rear of the front cover 2A. As shown in Fig. 1, the side cover 20d is disposed below the seat 1〇. The side cover 2〇d covers the front side of the engine 15 and the radiator 17, and is at least a part of the vehicle width direction of the front portion of the engine and the radiator 17. In the present embodiment, before the engine 15 and the radiator 17 One part of the part is covered by the side cover 2〇d. A leg portion 21a is disposed in a portion between the windshield 20c and the side cover 2〇d in the front-rear direction of the vehicle. The leg portion 21a is disposed in the engine 15 and dissipates heat. The leg portion 21a is disposed above the lower frame portion 9c. The foot portion 21 is used to position the foot during riding of the rider. As shown in FIGS. 2 and 9, the foot portion 2ia is provided. Take one of the directions from the width of the car Extending to the other end of the formed flat manner. Here, the term "set of flat leg portions 21a", refers to the center in the vehicle width direction is set to form the leg portion 21a of the unnecessary portion of the channel protrusions. The "foot portion 21a is flat" means that the rider can place the foot on the flatness of any portion of the leg portion, that is, the leg portion 21a can be formed with, for example, a non-slip or the like. 】54252.doc
S 201213189 如圖9所示，下蓋21dl、21d2配置於置腳部2la之下方。 下蓋21dl、21d2覆蓋下框架部9c之至少一部份之車寬方向 外方。具體言之’右下蓋21dl覆蓋下框架部9c之右側方。 左下蓋21d2覆蓋下框架部9c之左側方。底蓋2lc配置於置 腳部21a及下蓋21(11、21d2之下方》底蓋21c配置於下框架 部9c之下方’覆蓋下框架部9c之下方，另’根據本實施形 態’右下蓋21dl與左下蓋2 ld2與底蓋21c係作為一體形成 之一零件而構成’但亦可分別作為個別零件而形成。 利用該等置腳部21a、底蓋21c、下蓋21dl、21d2而形成 導風通路21e。即，導風通路21e於車寬方向上形成於下蓋 21dl、21d2之間且置腳部21a之下方。該導風通路如下詳 細說明，係用以對側蓋2〇d内方之空間之配置有散熱器i 7 之部份導入來自前方之空氣流之通路。 如圖7所示’導風通路21e之前端部與内護板2〇b及擋風 罩20c間之空間20e連接。如圖6所示，於内護板2〇b上形成 有2個上部開口（以下稱作「第！上部開口 2〇b丨」及「第2上 部開口 20b2」）與2個下部開口（以下稱作「第i下部開口 20b3」及「第2下部開口 2〇b4」）。 第1上部開口 20bl與第2上部開口 2〇b2係於車寬方向上分 離配置。前輪11以前視時與内護板2〇b中第1上部開口 2〇b【 與第2上部開口 20b2之間之部份重疊之方式配置。更詳細 吕之，第1上部開口 20bl之車寬方向内方之端部，與第2上 β開口 20b2之車寬方向内方之端部在前視時與前輪11重 疊。另一方面，第1上部開口 2〇bl與第2上部開口 2〇b2之其 154252.doc 201213189 他部份在前視時不與前輪u重疊H上部開口繼與第2 上部開口 20b2中在前視時不與前輪u重叠之部份之面積比 與前輪11重疊部份之面積大。又，第 乐1上部開口 2〇bl與第2 上部開口 20b2位於比置腳部21a上方。 第1下部開口 20b3與第2下部開口 2〇Μ於車寬方向上分離 配置。前輪11以與内護板20b中第i下部開口2此3與第之下 部開口2Gb4之間之部份在前視時不重疊之方式配置。更詳 細言之’第!下部開口 之車寬方向内方之端部與第2下 4開口 20b4之車寬方向内方之端部在前視時與前輪η重 疊。另一方面，第！下部開口2〇b3與第2下部開口 2〇μ之其 他部份在前視時不與前輪U重疊。第！下部開口2〇1)3與第2 下部開口 20b4中在正面觀察不與前輪丨丨重疊之部份之面積 比與前輪11重疊部份之面積大。又，第！下部開口2〇1)3與 第2下部開口 20b4具有位於比置腳部21a下方之部份。本實 施形態中，第1下部開口 2〇b3與第2下部開口 2〇b4全體位於 比置腳部21 a下方。惟第1下部開口 2〇b3與第2下部開口 20b4之僅一部份可位於比置腳部2ia下方。 藉由上述上部開口 2〇bl、20b2與下部開口 20b3、20b4， 使内護板20b後方之空間2(^與内護板2〇b之前方連通。因 此’導風通路21e經由空間2〇e、上部開口 20bl、20b2及下 部開口 20b3、20b4而與内護板20b之前方連通。 另一方面，導風通路21e之後端部與配置有引擎15或散 熱器17之側蓋20d之内方之空間連接》因此，空氣流經過 上部開口 20bl、20b2及下部開口 20b3、20b4、空間20e與 154252.doc |q s 201213189 導風通路21e而被導入側蓋2〇d内方之空間。其結果，使空 氣流被供給於引擎15及散熱器π。 如圖8及圖9所示，於導風通路21e中形成有作為通路内 構件之壁部21f〇該壁部21f向散熱器17導入向位於比導風 通路21 e之受風面ih更於車寬方向内方之部份流入之空氣 流。 壁部21f從底蓋21c向上方延伸。又，如圖8所示，壁部 21f向後方延伸。詳細言之，壁部21f以越向後方越位於車 寬方向外方之方式傾斜。 具體言之，壁部21f包含第1壁部21Π及第2壁部21f2。各 第1及第2壁部21fl、21f2從比受風面17a更於車寬方向内方 之位置向後方且於車寬方向之外方延伸。換言之，各第1 及第2壁部21 fl、21 Π之前端位於比受風面17a更於車寬方 向之内方。各第丨及第2壁部21fl、21f2之後端位於比各第i 及第2壁部21fl、21f2之前端更於車寬方向之外方。利用該 等第1及第2壁部21fl、21f2，將通過導風通路21e内之空氣 流有效地向散熱器17引導（參照圖8之箭頭W1)。又，通過 導風通路21e内之空氣流之一部份不向散熱器17而被導向 引擎15之油盤15i(參照圖8之箭頭W2)。 另，根據本實施形態，壁部21f相對於底蓋2ic垂直。惟 壁部21f亦可從底蓋21c向斜上方延伸。 又，如圖1及圖8所示，於散熱器17之車寬方向外方配置 有導風構件30。詳細言之，如圖8所示，導風構件3〇位在 散熱器17之車寬方向之外方，且比側蓋施之後端部更於 154252.doc • 11 · 201213189 =向之内方。即，導風構件3〇在位於側蓋咖内方之 工間中，配置於散熱器17之車宽方向之外方。 導風構件30係將經過導風通路2】e而流入側蓋咖内方之 空間之空氣流向散熱器17引導之構件。另，即 風構件30之情形尹，通過導風通路…之空氣流之:部份 仍會供給至散熱器17。因此，本發明中導風構件3〇非必須 之構件。 以下’-面主要參照圖8及圖1〇〜圖13，針對導風構件扣 之構成詳細說明。導風構件3〇具備複數之散執片 31a〜31e。如圖8所示， 寻第1第5散熱片31a〜31e配置於 政熱器17之車寬方向之外方。又，第1〜第5散熱片31a〜31e 配置於比側蓋2〇d之車寬方向外端更於車寬方向之内方。 各第1〜第5散熱片31a〜3_向前方且車寬方向之外方延 伸:即’各第i〜第5散熱片3la〜31eJX後部比前部更靠近散 熱器17之方式傾斜。 名更0羊，，田0之，如圆8、圖10、圖12及圖13所示，第卜第5 散熱片3U〜316沿著車體前後方向排歹,卜並且，如圖7〜圖 斤丁第1〜第5散熱片31a〜3le中配置於後方之散熱片之 車寬方向之外迪 y 端位於比配置於前方之散熱片之車寬方向 之外端更於車寬方向之外方。 二。之配置於最前方之第1散熱片31 a之車寬方向之 端4於車寬方向之最内方。位於第1散熱片31a後方之第 2散熱片31b之車官古a > ^ 見万向之外端’係位於比第1散熱片3 la之 @之外端更於車寬方向之外方Μ立於第2散熱片31b I54252.doc 201213189 後方之第3散熱片31c之車寬方向之外端係位於比第2散 熱片3lb之車寬方向之外端更於車寬方向之外方。位於第3 散熱片3M方之第4散熱片3ld之車寬方向之外端，係位 於比第3散熱片Me之車寬方向之外端更於車寬方向之外 方。位於第4散熱片31後方之第5散熱片…之車寬方向之 外端’係位於比第4散熱片31d之車寬方向之外端更於車寬 方向之外方。 另，如圖ίο所示，各第丨〜第5散熱片31a〜3ie具有以使上 下方向之中間部位於比上端部及下端部更後方之方式彎曲 之形狀。第1〜第5散熱片31a〜3le具有於中間部成銳角之方 式直線彎曲之形狀。又，各第丨〜第5散熱片川〜3ie係以連 ”’σ 32a、32b連結。連結部32a、32b係以與第1〜第5散熱 片31a〜31e交叉之方式沿著大致前後方向配置。 如圖1所示，本貫施形態之機車丨上配置有後腳踏板 18a 18b。因此，需要於後腳踏板18a、1处之内方配置側 蓋20d。由此，本實施形態中，側蓋2〇d向後方大幅延伸。 其、.’σ果散熱器17則部之一部份之車寬方向外方被側蓋 2〇d覆蓋。因此，散熱器17之受風面17&自側蓋2〇d之露出 面積小。因此，如先前之機車般要將流動於側蓋2〇d之車 寬方向外方之空氣流供給至散熱器17之情形時，空氣流向 散熱器17之供給效率下降，且散熱器17中之冷卻液之冷卻 效率下降。 與此相對’本實施形態之機車丨中，如圖8所示，於置腳 部21&之内部形成有導風通路21e ^並且，經過該導風通路 154252.doc -13· 201213189 21e對側蓋2Gd内之空間供給來自前方之空氣流。其結果， 來自前方之空氣流可有效供給至散熱器17。因此，可提高 散熱器17中之冷卻液之冷卻效率。 另，一般之機車中，置腳部下方之空間多作為電子零件 或佈線等之配置空間使用。這是為了在配置空間非常小之 機車中’藉由有效利用形成於置腳部下方之無效空間而謀 求機車之小型化。 、 又，般5之，為避免污泥或水等進入置腳部下方之空 間，置腳部下方之空間實際上較佳形成為封閉空間。 本實施形態之機車1之一大特徵在於，未在置腳部2ia下 方之空間内配置電子零件等，且未將置腳部21a下方之空 間形成為封閉空間，而是作為導風通路21e利用。藉由採 用該構成，如上述，可實現空氣流向散熱器17之高供給效 率。 又，如上述，先前之機車中，若側蓋覆蓋散熱器之一部 份之車寬方向外方，則散熱器之露出面積變小，由此導致 空氣流向散熱器17之供給效率下降。但，本實施形態之機 車1中，通過導風通路21e將空氣流導向側蓋2〇d内方之空 間。因此，藉由側蓋20d從車寬方向外方覆蓋散熱器17之 一部份，而可高效地將流動於側蓋2〇d内方之空間之空氣 流導向散熱器17❶因此，本實施形態之機車i中，藉由側 蓋20d從車寬方向之外方覆蓋散熱器17之一部份，而可提 高空氣流對散熱器17之供給效率。 又，本實施形態中，設有將來自導風通路21e之空氣流 154252.doc 201213189 導向散熱器17之導風構件3 0。因此，可將向後方流動之空 氣流有效供給於散熱器17之受風面17a。具體言之，本實 施形態中，導風構件30具備以越朝向後方則於車寬方向上 越靠近散熱器17之方式傾斜之複數之散熱片31a〜31e。利 用該等散熱片31 a〜3 le，可將向後方流動於導風通路216中 之空氣流之朝向變更於朝向散熱器17之受風面17a之方 向。因此，精由设置散熱片31 a~31e，而可更有效提高空 氣流向散熱器17之供給效率。 再者’本貫施形態之散熱片31 a〜3 1 e中，越是位於後方 之散熱片，其車寬方向之外端越位於車寬方向之外方。因 此’空氣流會與所有第1〜第5散熱片3 1 a~3 1 e碰撞。由此， 可對散熱器17之受風面17a之全體供給空氣流。因此，可 進而有效提高空氣流對散熱器17之供給效率。 另，亦可考慮不設置導風構件3〇而由側蓋2〇d覆蓋散熱 器17之受風面17a之車寬方向外方全體。此情形時亦可有 效對散熱器1 7供給空氣流。 但，此情形時因側蓋2〇d會妨礙機車丨停止時或低速行駛 時自散熱器17之放熱。因此，於機車丨停止時或低速行駛 時會導致散熱器17中之冷卻液之冷卻效率下降。 與此相對，本實施形態中，除散熱器17前部之一部份以 外的部份之車寬方向之外方未被側蓋覆蓋。且於導風 構件3〇之散熱片3 la〜31e之間形成有開σ。因&，本實施 形態之機車1中’於機車1停止時或低速行駛時有效進行自 散熱益17之放熱^因此，本實施形態之機車^，不僅在 154252.doc 15 201213189 空氣流旺盛之尚速行驶時，在低速行敬時或停車時亦可實 現散熱器17中之冷卻液之高冷卻效率。 又，本實施形態中，於導風通路2le内配置有壁部 21fl、21f2。該等壁部21fl、21f2從比受風面na更於車寬 方向之内方向後方延伸於車寬方向之外方。因此利用該 等壁部21fl、21f2，亦可將導風通路21e令流入位於比受風 面17a更於車寬方向内方之部份之空氣流導入散熱器17。 因此’可將更多空氣流導入於散熱器17。其結果，可更加 提南散熱器17中冷卻液之冷卻效率。 另，壁部21Π、21f2可與底蓋21c等一體形成，亦可與其 他構件另外形成。 又’本實施形態中，於内護板2〇b上設有上部開口 20bl、20b2與下部開口 20b3、20b4。因此，可更有效率地 將空氣流從上部開口 20bl、20b2與下部開口 20b3、2〇Μ向 導風通路21e引導。 尤其，下部開口 20b3、20b4具有位於比置腳部21&更下 方之部份。因此，可有效將空氣流從下部開口 2〇b3、2〇Μ 引導至置腳部21a下方之導風通路21e内。 再者，上部開口 20bl、2〇b2係於車寬方向上分離配置。 又，下部開口 20b3、20b4亦於車寬方向上分離配置。因 此，上部開口 20bl、20b2與下部開口 20b3、2〇134之大部份 在刖視時不與前輪11重疊。因此’空氣流可不受前輪丨丨阻 礙而有效流入於上部開口 20bl、20b2與下部開口 20b3、 20M ° 154252.doc • 16·S 201213189 As shown in Fig. 9, the lower covers 21d1 and 21d2 are disposed below the leg portions 21a. The lower covers 21d1, 21d2 cover at least a portion of the lower frame portion 9c in the vehicle width direction outward. Specifically, the 'right lower cover 21dl' covers the right side of the lower frame portion 9c. The left lower cover 21d2 covers the left side of the lower frame portion 9c. The bottom cover 2lc is disposed under the leg portion 21a and the lower cover 21 (below the 11 and 21d2). The bottom cover 21c is disposed below the lower frame portion 9c to cover the lower frame portion 9c, and the 'lower right cover according to the present embodiment' The 21 dl and the left lower cover 2 ld2 and the bottom cover 21c are integrally formed as one piece, but may be formed as individual parts, respectively, and formed by the leg portions 21a, the bottom cover 21c, and the lower covers 21d1 and 21d2. The air guiding passage 21e is formed in the vehicle width direction between the lower covers 21d1 and 21d2 and below the leg portion 21a. The air guiding passage is described in detail below, and is used for the side cover 2〇d The inner space is arranged such that a portion of the radiator i 7 is introduced into the passage of the air flow from the front. As shown in Fig. 7, the front end portion of the air guide passage 21e is interposed between the inner shield 2b and the windshield 20c. The space 20e is connected. As shown in Fig. 6, two upper openings (hereinafter referred to as "the first opening 2"b" and "the second upper opening 20b2" are formed on the inner panel 2b, and two Lower opening (hereinafter referred to as "i-th lower opening 20b3" and "second lower opening 2〇b4"). 20bl and the second upper opening 2〇b2 are disposed apart from each other in the vehicle width direction. The front wheel 11 is in a front view and a portion between the first upper opening 2〇b of the inner panel 2〇b and the second upper opening 20b2. In more detail, the end portion of the first upper opening 20b1 in the vehicle width direction and the inner end portion of the second upper β opening 20b2 in the vehicle width direction overlap with the front wheel 11 in the front view. On the other hand, the first upper opening 2 〇 bl and the second upper opening 2 〇 b2 are 154252.doc 201213189. The other portion does not overlap the front wheel u in the front view. The upper opening of the upper opening is followed by the second upper opening 20b2. The area of the portion that does not overlap with the front wheel u is larger than the area of the portion where the front wheel 11 overlaps. Further, the upper opening 2〇b1 and the second upper opening 20b2 of the first piece 1 are located above the leg portion 21a. The opening 20b3 and the second lower opening 2 are disposed apart from each other in the vehicle width direction. The front wheel 11 is not in front view with the portion between the third lower opening 2 and the lower opening 2Gb4 of the inner shield 20b. Arranged in an overlapping manner. In more detail, the first part of the inner width of the lower opening is the second end and the second 4 The end portion of the opening 20b4 in the vehicle width direction overlaps with the front wheel η in the front view. On the other hand, the other portion of the second lower opening 2〇b3 and the second lower opening 2〇μ are not in front view. The front wheel U overlaps. The area of the portion of the lower opening 2〇1)3 and the second lower opening 20b4 that does not overlap the front rim in front view is larger than the area of the portion overlapping the front wheel 11. Again, the first! The lower opening 2〇1)3 and the second lower opening 20b4 have portions located below the leg portion 21a. In the present embodiment, the first lower opening 2〇b3 and the second lower opening 2〇b4 are located below the specific leg portion 21a. However, only a portion of the first lower opening 2〇b3 and the second lower opening 20b4 may be located below the specific leg portion 2ia. By the upper openings 2〇b1 and 20b2 and the lower openings 20b3 and 20b4, the space 2 behind the inner panel 20b is connected to the front side of the inner panel 2〇b. Therefore, the air guiding passage 21e passes through the space 2〇e. The upper openings 20b1 and 20b2 and the lower openings 20b3 and 20b4 communicate with the front side of the inner panel 20b. On the other hand, the rear end of the air guiding passage 21e and the inner side of the side cover 20d where the engine 15 or the radiator 17 are disposed are disposed. Therefore, the air flow is introduced into the space inside the side cover 2〇d through the upper openings 20b1 and 20b2 and the lower openings 20b3 and 20b4, the space 20e and the 154252.doc |qs 201213189 air guiding passage 21e. As a result, The air flow is supplied to the engine 15 and the radiator π. As shown in Figs. 8 and 9, the air passage 21e is formed with a wall portion 21f as a passage inner member, and the wall portion 21f is introduced into the radiator 17 to be positioned. The wind receiving surface ih of the air guiding passage 21e is larger than the airflow flowing inward in the vehicle width direction. The wall portion 21f extends upward from the bottom cover 21c. Further, as shown in Fig. 8, the wall portion 21f extends rearward. In detail, the wall portion 21f is located more outward in the vehicle width direction as it goes rearward. Specifically, the wall portion 21f includes the first wall portion 21A and the second wall portion 21f2. The first and second wall portions 21fl and 21f2 are located further inward than the wind receiving surface 17a in the vehicle width direction. It extends rearward and outward in the vehicle width direction. In other words, the front ends of the first and second wall portions 21 fl and 21 are located in the vehicle width direction than the wind receiving surface 17a. Each of the second and second portions The rear ends of the wall portions 21fl and 21f2 are located outside the front end of each of the i-th and second wall portions 21fl and 21f2 in the vehicle width direction. The first and second wall portions 21fl and 21f2 pass through the air guiding passage. The air flow in 21e is effectively guided to the radiator 17 (refer to arrow W1 of Fig. 8). Further, a portion of the air flow passing through the air passage 21e is not directed to the radiator 17 and is guided to the oil pan 15i of the engine 15. (Refer to the arrow W2 in Fig. 8.) According to the present embodiment, the wall portion 21f is perpendicular to the bottom cover 2ic. However, the wall portion 21f may extend obliquely upward from the bottom cover 21c. Further, as shown in Figs. 1 and 8 It is shown that the wind guide member 30 is disposed outside the radiator 17 in the vehicle width direction. In detail, as shown in FIG. 8, the wind guide member 3 is positioned at the width of the radiator 17. To the outside, and the end of the side cover is more than 154252.doc • 11 · 201213189 = inside. That is, the wind guide member 3 is disposed in the work space inside the side cover coffee, and is disposed in the heat dissipation. The wind guide member 30 is a member that guides the air flowing into the space inside the side cover to the radiator 17 through the air guiding passage 2]e. In other words, the wind member 30 is used. Yin, through the air duct...the air flow: part will still be supplied to the radiator 17. Therefore, in the present invention, the wind guiding member 3 is not a necessary member. Hereinafter, the configuration of the air guiding member buckle will be described in detail with reference mainly to Fig. 8 and Figs. 1 to 13 . The wind guide member 3A has a plurality of pieces 31a to 31e. As shown in Fig. 8, the first and fifth heat sinks 31a to 31e are disposed outside the heat exchanger 17 in the vehicle width direction. Further, the first to fifth fins 31a to 31e are disposed inward in the vehicle width direction from the outer end in the vehicle width direction of the side cover 2〇d. Each of the first to fifth heat radiating fins 31a to 3_ extends forward and outward in the vehicle width direction: that is, the rear portions of the ith to fifth heat radiating fins 31a to 31eJX are inclined closer to the heat radiator 17 than the front portion. The name is 0 sheep, and the field 0, as shown in Figure 8, Figure 10, Figure 12 and Figure 13, the fifth heat sink 3U~316 is arranged along the front and rear direction of the vehicle body, and, as shown in Figure 7~ In the first to fifth heat sinks 31a to 3le of the first to fifth heat sinks 31a to 3le, the diy end of the heat sink disposed in the rear is located in the vehicle width direction than the outer end of the heat sink disposed in the front. Foreign party. two. The end 4 of the first heat sink 31a disposed in the frontmost direction of the vehicle width direction is the innermost side in the vehicle width direction. The second heat sink 31b located behind the first heat sink 31a is abbreviated to the outside of the first heat sink 3 la. The outer end of the third heat sink 31c in the vehicle width direction is located outside the second heat sink 31b I54252.doc 201213189 in the vehicle width direction of the second heat sink 31b. The outer end of the fourth heat sink 3ld located on the third heat sink 3M side in the vehicle width direction is located outside the outer width direction of the third heat sink Me in the vehicle width direction. The outer end of the fifth heat sink ... located in the vehicle width direction behind the fourth heat sink 31 is located outside the outer width direction of the fourth heat sink 31d in the vehicle width direction. Further, as shown in Fig. 1, each of the second to fifth heat radiating fins 31a to 3ie has a shape that is curved such that the intermediate portion in the upper and lower directions is located further rearward than the upper end portion and the lower end portion. The first to fifth fins 31a to 3le have a shape in which the intermediate portion is bent at an acute angle. Further, each of the third to fifth heat sinks to 3ie is connected by "sigma 32a, 32b. The connecting portions 32a and 32b are substantially perpendicular to each other so as to intersect the first to fifth heat radiating fins 31a to 31e. As shown in Fig. 1, the rear footrests 18a to 18b are disposed on the locomotive of the present embodiment. Therefore, the side cover 20d needs to be disposed inside the rear footrests 18a and 1. Thus, in the present embodiment, the side is provided. The cover 2〇d extends substantially to the rear. The outer portion of the part of the 'σ σ s heat sink 17 is covered by the side cover 2 〇 d. Therefore, the wind receiving surface 17 & The exposed area of the side cover 2〇d is small. Therefore, when the air flow flowing outward in the vehicle width direction of the side cover 2〇d is supplied to the radiator 17 as in the previous locomotive, the air flows to the radiator 17. In the locomotive of the present embodiment, as shown in Fig. 8, an air guiding passage 21e is formed inside the leg portion 21 & And, the space in the side cover 2Gd is supplied through the air guiding passage 154252.doc -13·201213189 21e. As a result, the air flow from the front can be efficiently supplied to the radiator 17. Therefore, the cooling efficiency of the coolant in the radiator 17 can be improved. In addition, in the general locomotive, the space below the foot is placed. It is used as an arrangement space for electronic parts or wiring, etc. This is to reduce the size of the locomotive by effectively utilizing the ineffective space formed under the leg portion in a locomotive with a very small space. In order to prevent sludge or water from entering the space below the leg portion, the space below the leg portion is actually preferably formed as a closed space. One of the locomotives 1 of the present embodiment is characterized in that it is not under the leg portion 2ia. The electronic component or the like is disposed in the space, and the space below the leg portion 21a is not formed as a closed space, but is used as the air guiding passage 21e. By adopting this configuration, the air flow to the radiator 17 can be achieved as described above. Further, as described above, in the conventional locomotive, if the side cover covers the outer side of the width of one of the heat sinks, the exposed area of the heat sink becomes small, thereby causing an empty space. The supply efficiency of the airflow to the radiator 17 is lowered. However, in the locomotive 1 of the present embodiment, the air flow is guided to the space inside the side cover 2〇d by the air guiding passage 21e. Therefore, the side cover 20d is from the vehicle width direction. The outer side covers one part of the heat sink 17, and the air flow flowing in the space inside the side cover 2〇d can be efficiently guided to the heat sink 17. Therefore, in the locomotive i of the embodiment, the side cover 20d is used. The part of the radiator 17 is covered outside the width direction of the vehicle to improve the supply efficiency of the air flow to the radiator 17. Further, in the present embodiment, the air flow from the air guiding passage 21e is provided 154252.doc 201213189 The wind guiding member 310 of the radiator 17 is guided. Therefore, the air flow flowing backward can be efficiently supplied to the wind receiving surface 17a of the radiator 17. Specifically, in the present embodiment, the air guiding member 30 is provided with a plurality of fins 31a to 31e which are inclined so as to be closer to the heat sink 17 in the vehicle width direction as they are rearward. With these fins 31a to 3le, the direction of the air flow flowing backward in the air guiding passage 216 can be changed toward the wind receiving surface 17a of the radiator 17. Therefore, by providing the fins 31 a to 31e, the supply efficiency of the air flow to the radiator 17 can be more effectively improved. Further, in the fins 31 a to 3 1 e of the present embodiment, the fins located at the rear side are located outside the vehicle width direction in the outer width direction of the heat sink. Therefore, the air flow collides with all of the first to fifth heat sinks 3 1 a to 3 1 e. Thereby, the air flow can be supplied to the entire wind receiving surface 17a of the radiator 17. Therefore, the supply efficiency of the air flow to the radiator 17 can be effectively increased. Further, it is also conceivable that the wind guide member 3 is not provided, and the outer cover of the wind receiving surface 17a of the radiator 17 is covered by the side cover 2〇d. In this case, it is also effective to supply air flow to the radiator 17. However, in this case, the side cover 2〇d may hinder the heat release from the radiator 17 when the locomotive is stopped or at a low speed. Therefore, the cooling efficiency of the coolant in the radiator 17 is lowered when the locomotive is stopped or at a low speed. On the other hand, in the present embodiment, the outer side of the portion other than the front portion of the heat sink 17 is not covered by the side cover. An opening σ is formed between the fins 3 la to 31e of the air guiding member 3 . In the locomotive 1 of the present embodiment, the heat release from the heat dissipation benefit 17 is effectively performed when the locomotive 1 is stopped or at a low speed. Therefore, the locomotive of the present embodiment is not only 154252.doc 15 201213189 When the vehicle is running at a constant speed, the high cooling efficiency of the coolant in the radiator 17 can be achieved at the time of low speed or when stopping. Further, in the present embodiment, the wall portions 21fl and 21f2 are disposed in the air guiding passage 2le. The wall portions 21fl and 21f2 extend rearward in the vehicle width direction from the wind receiving surface na in the rear direction in the vehicle width direction. Therefore, by the wall portions 21fl and 21f2, the air passage 21e can be introduced into the radiator 17 so that the air flowing into the portion farther than the wind receiving surface 17a in the vehicle width direction can be introduced. Therefore, more air flow can be introduced to the radiator 17. As a result, the cooling efficiency of the coolant in the south radiator 17 can be further improved. Further, the wall portions 21A, 21f2 may be integrally formed with the bottom cover 21c or the like, or may be formed separately from other members. Further, in the present embodiment, the upper openings 20b1 and 20b2 and the lower openings 20b3 and 20b4 are provided in the inner panel 2b. Therefore, the air flow can be more efficiently guided from the upper openings 20b1, 20b2 and the lower openings 20b3, 2〇Μ to the air guiding passage 21e. In particular, the lower openings 20b3, 20b4 have portions located further than the leg portions 21 & Therefore, the air flow can be efficiently guided from the lower opening 2〇b3, 2〇Μ to the air guiding passage 21e below the leg portion 21a. Further, the upper openings 20b1 and 2b2 are disposed apart from each other in the vehicle width direction. Further, the lower openings 20b3 and 20b4 are also disposed apart from each other in the vehicle width direction. Therefore, most of the upper openings 20b1, 20b2 and the lower openings 20b3, 2 134 do not overlap the front wheel 11 when viewed. Therefore, the air flow can effectively flow into the upper opening 20b1, 20b2 and the lower opening 20b3, 20M 154252.doc • 16· without being blocked by the front rim.
S 201213189 以上針對本發明之一實施形態進行了說明，但本發明不 限於上述實施形態，在不脫離本發明主旨之範圍内可進行 各種變更。 例如，導風通路2le全體之下方亦可由底蓋21c覆蓋。如 圖14所示’亦可於底蓋21c上設置凹部21〇。凹部21〇具有 從底蓋21c之後端部向前方凹陷之形狀。或底蓋2U之前後 方向之長度或車寬方向之長度亦可比導風通路短。再 者，亦可不設置底蓋2ic。即，導風通路21e只要至少由下 蓋與置腳部形成即可。 導風構件之形狀不限於上述導風構件3〇之形狀。例如機 車1亦可具備圖15所示之導風構件3〇〇。該導風構件3〇〇具 有第I〜第5散熱片310a〜31〇e。第i〜第5散熱片31〇卜3♦未 由上述之連結部32a、32b(參照圖10)連結。又，第丨〜第5散 熱片31〇a〜3i〇e具有以使争間部成為曲線狀之方式而彎曲 之形狀。再者，於導風構件3⑽之上部設有用以避免與散 熱器17之一部份之干擾之孔wo。 構成上述車體蓋20之各部份亦可分別由複數之零件構 成。例如如圖16所示，車體蓋2〇亦可具有第i〜第6蓋零件 41-46。該等蓋零件係分別另外形成之零件。第1蓋零件41 位於座椅H)之前端部之下方。又，第i蓋零件仙於座椅 10之前部之左右兩_之下方。第1蓋零㈣構成上述側 蓋20d之前面之上部。第2蓋零件42位於第ι蓋零件η之後 方，以及座椅1G之後部之下方。第2蓋零件42構成上述側 盖_之右側面之上部。第3蓋零件43與第2蓋零件42大致 154252.doc 201213189 左右對稱地設置。第3蓋零件43構成上述側蓋2〇d之左側面 之上部。第4蓋零件44位於第丄蓋零件41、第2蓋零件“與 第3蓋零件43之下方。第4蓋零件44構成側蓋2〇d之左右兩 側面之一部份與腳踏板21a。具體言之，於第4蓋零件44之 右側面形成有向車寬方向之内方凹陷之凹部44a，該凹部 44a之底面構成配置有上述後腳踏板18a之階部Μ。。第4蓋 零件44之左側面係與第4蓋零件料之右側面大致左右對稱 之形狀。第5蓋零件45位於第4蓋零件44之下方。第5蓋零 件45構成上述下蓋21(11之—部份。第6蓋零件46位於第*蓋 零件44之/方以及第5蓋零件45之後方。第6蓋零件46構成 上述下蓋2Idl之一部份以及側蓋2〇d之右侧面之下部。 另，雖未圖示，但與第5蓋零件45及第6蓋零件“與左右對 稱地設有第7蓋零件及第8蓋零件，而構成下蓋川2與側蓋 施之左側面之下部。$，分割成車體蓋2G之複數之零件 之態樣不限於上述者。χ，亦可一體形成上述第工〜第⑼ 零件41〜46及第7、第8蓋零件之全部或一部份。 [產業上之可利用性] 根據本發明’可於機車中提高空氣流向側散熱器之供給 效率。 【圖式簡單說明】 圖1係實施形態之機車之略圖化左側視圖。 圖2係實施形態之機車之略圖化平面圖。 圖3係用以說明車體框架之機車之略圖化右側視圖。 圖4係顯示引擎之一部份之略圖化剖面圖。 I54252.doc 201213189 圖5係引擎之左侧視圖。 圖ό係實施形態之機車之略圖化正視圖。但前叉、前 輪、把手等省略描繪。 圖7係圖6之VII-VII箭視圖。 圖8係圖1之VIII-VIII箭視圖。 圖9係圖1之ιχ_ιχ箭視圖。 圖1 〇係導風構件之側視圖。 圖11係導風構件之正視圖。 圖12係圖1〇之χπ_χπ箭視圖。 圖13係圖1〇之ΧΙΠ-ΧΙΠ箭視圖。 圖14係其他實施形態之機車之車體框架及底蓋之平面 圖。 圖15係其他實施形態之機車之導風構件之側視圖。 圖16係顯示其他實施形態之機車之一部份之略圖化立體 圖。 【主要元件符號說明】 圖Π係專利文獻丨所記載之引擎之剖面圖。 1 機車 8 拖轴 9 車體框架 9a 頭管部 9b 向下框架部 9bl 右向下框架部 9b2 左向下框架部 154252.doc 201213189 9c 下框架部 9cl 右下框架部 9c2 左下框架部 9e 轉向軸 9d 後框架部 9dl 右後框架部 9d2 左後框架部 9fl、9f2 框架部 10 座椅 11 前輪 12 把手 15 引擎 15a 曲軸 15b 連桿 15c 氣缸體 15cl 圓筒狀氣缸 15e 輸出軸 15f 散熱器風扇 15g 氣缸蓋 15h 懸架部 15i 油盤 16 後輪 17 散熱器 17a 受風面 154252.doc •20- 201213189 18a' 18b 後腳踏板 20 車體蓋 20a 前蓋 20b 内護板 20c 擋風罩 20d 側蓋 20e 空間 20bl 上部開口 20b3 下部開口 20bl 、20b2 上部開口 20b3 、20b4 下部開口 21a 置腳部 21c 底蓋 21e 導風通路 21dl 左下蓋 21d2 右下蓋 21e 導風通路 21f 壁部 21fl 第1壁部 21f2 第2壁部 22c 階部 30 導風構件 31a 第1散熱片 31b 第2散熱片 154252.doc -21 - 201213189 31c 31d 31e 32a、32b 41 43 44 44a 45 46 100 101 210 300 320 第3散熱片 第4散熱片 第5散熱片 連結部 第1蓋零件 第3蓋零件 第4蓋零件 凹部 第5蓋零件 第6蓋零件 側散熱器 散熱片 凹部 導風構件 孔 154252.doc -22-Although the embodiment of the present invention has been described above, the present invention is not limited to the embodiment described above, and various modifications can be made without departing from the spirit and scope of the invention. For example, the lower portion of the entire air guiding passage 2le may be covered by the bottom cover 21c. As shown in Fig. 14, a recess 21' may be provided in the bottom cover 21c. The recess 21'' has a shape recessed forward from the rear end portion of the bottom cover 21c. Or the length of the front cover 2U or the length of the vehicle width direction may be shorter than the air guide passage. Further, the bottom cover 2ic may not be provided. In other words, the air guiding passage 21e may be formed by at least a lower cover and a leg portion. The shape of the wind guiding member is not limited to the shape of the above-described wind guiding member 3''. For example, the locomotive 1 may be provided with the wind guide member 3A shown in Fig. 15. The air guiding member 3 has first to fifth heat radiating fins 310a to 31〇e. The i-th to fifth heat sinks 31 are not connected by the above-described connecting portions 32a and 32b (see Fig. 10). Further, the first to fifth heat dissipation sheets 31a to 3i, e have a shape that is curved so that the contention portion is curved. Further, a hole wo for avoiding interference with a portion of the heat radiator 17 is provided on the upper portion of the air guiding member 3 (10). The respective portions constituting the above-described vehicle body cover 20 may also be composed of a plurality of parts. For example, as shown in Fig. 16, the body cover 2 can also have the i-th to sixth cover members 41-46. The cover parts are separately formed parts. The first cover member 41 is located below the front end of the seat H). Further, the i-th cover member is sewn below the left and right sides of the front portion of the seat 10. The first cover zero (four) constitutes the upper portion of the front surface of the side cover 20d. The second cover member 42 is located behind the first cover member n and below the rear portion of the seat 1G. The second cover member 42 constitutes an upper portion of the right side surface of the side cover_. The third cover member 43 is disposed symmetrically with respect to the second cover member 42 substantially 154252.doc 201213189. The third cover member 43 constitutes an upper portion of the left side surface of the side cover 2〇d. The fourth cover member 44 is located below the second cover member 41 and the second cover member "below the third cover member 43. The fourth cover member 44 constitutes one of the left and right side faces of the side cover 2〇d and the footrest 21a. Specifically, a concave portion 44a recessed inward in the vehicle width direction is formed on the right side surface of the fourth cover member 44, and the bottom surface of the concave portion 44a constitutes a step portion 配置 in which the rear footrest 18a is disposed. The fourth cover member The left side surface of 44 is substantially symmetrical with respect to the right side surface of the fourth cover part material. The fifth cover part 45 is located below the fourth cover part 44. The fifth cover part 45 constitutes the lower cover 21 (part of 11) The sixth cover member 46 is located behind the side of the first cover member 44 and the fifth cover member 45. The sixth cover member 46 constitutes a part of the lower cover 2Id1 and the lower side of the right side of the side cover 2〇d Further, although not shown, the fifth cover member 45 and the sixth cover member are provided with the seventh cover member and the eighth cover member symmetrically with respect to the left and right sides, and the left side of the lower cover 2 and the side cover are formed. The lower part. $, the part that is divided into a plurality of parts of the body cover 2G is not limited to the above. χ, can also form the above-mentioned work ~ (9) All or part of the parts 41 to 46 and the seventh and eighth cover parts. [Industrial Applicability] According to the present invention, the supply efficiency of the air flow to the side heat sink can be improved in the locomotive. Fig. 1 is a schematic left side view of a locomotive according to an embodiment. Fig. 2 is a schematic plan view of a locomotive according to an embodiment. Fig. 3 is a schematic side view showing a locomotive of a vehicle body frame. Fig. 4 is one of the display engines. A partial cross-sectional view of the engine. I54252.doc 201213189 Figure 5 is a left side view of the engine. Figure ό is a schematic front view of the locomotive of the embodiment, but the front fork, front wheel, handle, etc. are omitted. Figure 7 is Figure 6. Fig. 8 is a view of the arrow VIII-VIII of Fig. 1. Fig. 9 is a view of the arrow of Fig. 1. Fig. 1 is a side view of the wind deflecting member. Fig. 11 is a front view of the wind guiding member. Fig. 12 is a view of a χ χ ΧΙΠ 箭 arrow of Fig. 1. Fig. 13 is a view of a ΧΙΠ-ΧΙΠ arrow of Fig. 1. Fig. 14 is a plan view of a body frame and a bottom cover of a locomotive according to another embodiment. Fig. 15 is a locomotive of another embodiment. Side view of the wind guiding member. A schematic perspective view of a part of a locomotive according to another embodiment. [Explanation of main component symbols] Fig. 剖面 is a cross-sectional view of the engine described in the patent document 1 1 Locomotive 8 Tow axle 9 Car body frame 9a Head pipe section 9b direction Lower frame portion 9b1 Right down frame portion 9b2 Left down frame portion 154252.doc 201213189 9c Lower frame portion 9cl Right lower frame portion 9c2 Lower left frame portion 9e Steering shaft 9d Rear frame portion 9dl Right rear frame portion 9d2 Left rear frame portion 9fl , 9f2 frame part 10 seat 11 front wheel 12 handle 15 engine 15a crankshaft 15b connecting rod 15c cylinder block 15cl cylindrical cylinder 15e output shaft 15f radiator fan 15g cylinder head 15h suspension part 15i oil pan 16 rear wheel 17 radiator 17a Wind surface 154252.doc •20- 201213189 18a' 18b Rear foot pedal 20 Body cover 20a Front cover 20b Inner guard 20c Windshield 20d Side cover 20e Space 20bl Upper opening 20b3 Lower opening 20bl, 20b2 Upper opening 20b3, 20b4 Lower opening 21a Footrest 21c Bottom cover 21e Air guide passage 21dl Left lower cover 21d2 Lower right cover 21e Air guide passage 21f Wall portion 21fl First wall portion 21f2 Second wall portion 22c Step portion 30 Air guiding member 31a First heat sink 31b Second heat sink 154252.doc -21 - 201213189 31c 31d 31e 32a, 32b 41 43 44 44a 45 46 100 101 210 300 320 Third heat sink Fourth heat sink Fifth heat sink connecting portion First cover part Third cover part Fourth cover part recessed part Fifth cover part Sixth part part side Heat sink fin concave part Wind guide member hole 154252 .doc -22-
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