1353.941 t 九、發明說明： 【發明所屬之技術領域】 中 本發明係關於一種在藉由走行風冷卻引擎 ，特別是減低引擎外面之冷卻效果不均勻【先前技術】 之跨坐型車輛 之技術。 以往有將引擎配置於由前方承受車輛之走行所產 行風之位置，#由走行風冷卻該引擎之機車4專利文獻1353.941 t IX. Description of the Invention: [Technical Field of the Invention] The present invention relates to a technique for straddle-type vehicles in which the cooling effect of the engine is cooled by the running air, in particular, the cooling effect outside the engine is not uniform [prior art]. In the past, the engine was placed in the position where the vehicle was driven by the front, and the locomotive of the engine was cooled by the wind. 4 Patent Literature
1所揭，之車輛中，藉由配置於引擎前方之蓋（在專利文獻 1中為護腿板）將走行風引導至引擎。 [專利文獻1]曰本特開2002-145155號公報 【發明内容】 [發明所欲解決之問題] 然而，在機車中，由於引擎之外形而有走行風難以接觸 之部分’故有在引擎外面發生冷卻效果不均勻之情形。例 如’有將火星塞安裝於汽缸蓋之側面，將其安裝位置設置 於向内側凹入之位置之引擎。此情形，由引擎前方流過來 之走行風不能圓滑地流到火星塞之安裝位置而有該安裝 位置難以被走行風充分冷卻之情形。 此點如專利文獻1所揭示之車輛，也可考慮藉由配置於 引擎前之車體蓋等將走行風引導至引擎外面之方法。然 而，因引擎之配置位置或走行風難以接觸之部分之位置， 有時欲將該車體蓋成型為藉由車體蓋將走行風引導至引擎 外面並不容易。 本發明係鑑於上述問題所完成者，其目的在於提供一種 136090.doc IS1 1353941 ㈣簡單之構造可減㈣擎外 型車輛。 丨欢果不均勻之跨坐 [解決問題之技術手段] 為解決上述問題’本發明之跨坐型車翻包含引擎 配置於由前方承受車輛之走行所產生之走行風之位置:、及 導壁’其係以由《引擎之外面突出，並與前述走 向之方式安裝於前述引擎，將前述走行風引導至前述引擎 之外面。In the vehicle disclosed in the first aspect, the traveling wind is guided to the engine by a cover disposed in front of the engine (a leg shield in Patent Document 1). [Patent Document 1] JP-A-2002-145155 SUMMARY OF INVENTION [Problems to be Solved by the Invention] However, in a locomotive, there is a portion in which the wind is difficult to contact due to the shape of the engine, so that it is outside the engine. A situation in which the cooling effect is uneven. For example, there is an engine that mounts a spark plug on the side of the cylinder head and sets its mounting position to a position recessed inward. In this case, the running wind flowing from the front of the engine cannot smoothly flow to the installation position of the spark plug, and the installation position is difficult to be sufficiently cooled by the running wind. In this regard, as the vehicle disclosed in Patent Document 1, a method of guiding the traveling wind to the outside of the engine by a vehicle body cover or the like disposed in front of the engine may be considered. However, it is not easy to form the body cover by guiding the wind to the outside of the engine by the body cover due to the position of the engine or the position of the part where the wind is difficult to contact. SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object thereof is to provide a 136090.doc IS1 1353941 (d) simple construction capable of reducing (four) exterior vehicles.不 之 不 不 [ [ [ [ [ [ [ 不 不 不 不 不 不 不 不 ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' 'It is attached to the engine by the outer surface of the engine and is oriented in the manner described above, and guides the aforementioned wind to the outside of the engine.
依據本發明，即使在引擎外面產生走行風難以接觸之部 分之情形，也可藉由導壁將走行風引導至該部分，故可減 低引擎外面之冷卻效果不均勻。x，因導壁係安裝於引擎 之構件，故與將車體蓋成型為該車體蓋將走行風引導至引 擎外面之情形相比，可利用簡單之構造將走行風引導至引 擎外面。又，上述跨坐型車輛係搭乘者跨坐在座墊上之車 輛，例如機車（含速克達）、或雪車、四輪貨車等。 【實施方式】 以下，一面參照圖式一面說明有關本發明之一實施型 態。圖1係本發明之實施型態例之機車丨之側面圖，圖2係 機車1前部之放大側面圖。 如圖1所示，機車1具有前輪3、後輪4、車體架20、前声 泥板30 '整流板39、遮板40、導壁50、及引擎6〇。又，車 體架20包含有頭管21、主管22、及向下管23。 頭管21係位於車體架20之前端，可旋轉地支持配置於其 内側之操向軸（未圖示）。主管22之前端與向下管23之上端 136090.doc • 6 · IS] 1353941 * (前端）連接於頭管21。主管22係由頭管21向後方延伸，下 管23係由頭管21向斜下方延伸。在主管22之上側配置有貯 存燃料之燃料箱5，在該燃料箱5之後方，配置可供搭乘者 . 跨坐之座墊6。 在上述操向軸之上端及下端，安裝有上托架8與下托架 • 上托架8與下托架7係藉由其左右之端部保持著左右一 - 對之前懸架9之上部。前懸架9係設成向斜下方延伸，藉由 其下端部％支持前輪3之車軸。又，前懸架9係正立式之懸 架，其下部具有外管9a，在該外管％由上方插通内管外。 在外S 9a之上知，形成直徑大於該外管％之其他部分之大 徑部9c。 前擋泥板30係配置於一對前懸架9之間，由上方覆蓋著 刖輪3。圖3係在圖2之III所示之方向看前擋泥板3〇之情形 之該前擋泥板30之立體圖。 如圖2或圖3所示，前擋泥板30具有上面部3〇a、後側面 • #30b及前侧面部30c。上面部3〇a係形成以前輪3之車軸為 中心彎曲，且位於前輪3之斜上方。後侧面部3〇b係設成由 上面部3〇a之左右緣向下方延伸，位於前輪3之側方且前懸 架9之内側(車寬方向之中心側)(參照圖3)。前側面部30c係 »又成由上面30a之左右緣向下方延伸，位於前輪3之側方 且則I架9之刚（參照圖3)。如圖3所示，前側面部心係朝 向外管9a之外周面之車寬方向外側之位置向斜後方延伸。 即’前側面部3Ge係形成隨著接近於前懸架9,逐漸向側方 擴大。藉此，在車輛之走行時，可形成沿著前側面部30c 136090.doc 1-353941 向後方，至外管9&之側方之走行風之圓滑之氣流A1。 如圖2所示，整流板39係在上下方向較長之板狀之構 件，設於外管9a之後方。又，整流板39如圖3所示，係配 置成由外管9a之外周面向車寬方向之中心側傾斜，其後端 緣39b比前端緣39a更靠近中心側。藉此，可形成由外管％ 之側方沿著整流板39向斜後方之圓滑之走行風之氣流A2。 又，如圖3所示，整流板39在其内側具有板狀之安裝部 此安裝部39c例如係被螺栓固定於設於外管％之大徑 4 9c之凸台9d。又，如圖2所示，在整流板39之後方配 置制動軟管13。此制動軟管13係連接於夾著與前輪3同時 旋轉之制動碟11之卡鉗12。 引擎60係被走行風冷卻之空冷式引擎，配置於由前方 (Fr所示之方向)承受車輛之走行時通過前擋泥板3〇之上方 及左右兩側而流向車體後方之走行風之位置。詳言之，如 圖2所不’引擎60係在前播泥板3〇之後方配置成露出於 外部。又，引擎60係位於主管22之下方且向下扣之後方 (參照圖D’被主管22㈣架，並被設於向下管23之前端之 托架23a所支持。 如圖2所示，引擎60係包含收容曲抽（未圖示）之曲軸箱 61 '内部形成汽缸（未圖示）之汽紅體以、内部形成使燃料 燃燒用之燃燒室之汽缸蓋63、及蓋著該汽缸蓋〇之蓋… 曲抽箱61位於引擎6〇之下部’汽缸體62係以使汽缸之軸線 朝向斜上方之方式設於曲缸& 曲袖粕61之上部。汽缸蓋63係安裝 於’又虹體62之上部。又’在汽缸蓋63之側面㈣，安裝有 136090.doc IS1 1353941 對含有送至燃燒室之空氣與燃料之混合氣點火之火星塞 65。火星塞65係由汽缸蓋63之外面被插入，其前端部達到 燃燒室。又’在汽缸蓋63與汽紅體62之外面，形成冷卻片 60a ° 圖4係圖2所示之IV-IV線之剖面圖。如圖4所示，在汽缸 蓋63之側面63b設有向内侧凹入之凹部63a。構成此凹部 63a之側壁63f係位於比側面63b之其他部分更裡側（内側）。 在凹部63a之底壁63h ’形成插入火星塞65之塞孔63c。 又’如圖2所示，在火星塞65’蓋著連結該火星塞65與點 火線圈（未圖示）之塞蓋65a。又，在凹部63a之侧方，配置 有將走行風引導至凹部63a之導壁50 »有關此導壁50，容 後再詳加說明。 如圖2所示，在引擎60之前且前擋泥板3〇之後方，配置 有遮板40。遮板40可將通過前擋泥板3〇之上方及侧方之走 行風引導至引擎60。圖5係遮板40之正面圖，圖6係遮板40 及導壁50之側面圖。如圖5所示’遮板4〇具有位於汽缸蓋 63及汽缸體62之前之前側導板42、位於該前側導板42之左 右兩側之外框41、41、與位於前側導板42之左右兩側且外 框41、41之内側（車寬方向之中心側）之内框43、43。又， 在圖6中’將外框41及内框43局部切剖，以顯示配置於其 内側之前側導板42。 外框41、41係在向下管23之左右，被該向下管23所支 持°詳言之，在向下管23之上端與主管22之間設有加強板 28(參照圖1)。在此加強板28安裝有向側方延伸之撐條49、 136090.doc m 1353941 49。如圖5所不，在撐條49、49之前端，設有圓柱狀之減 震器49a、49a°外框41係在前側導板42之上方，具有向向 下管23側延伸之上面部…，在此上面部化之前端形成抓 住該減震器49a之安裝部41 b。 又，在設於向下管23之下端之托架23a，安裝有向側方 延伸之撐條48、48。在外框41之下緣形成有向向下管23側 大出之安裝部41c，在此安裝部41(；固定撐條判之前端。 前側導板42係在向下管23與外框41之間具有略水平地配 置之複數橫板42L、42R。複數（在此為3個）橫板42L係在向 下管23之左側配置成上下排列，複數（在此為3個）橫板42r 係在向下管23之右側配置成上下排列。複數橫板饥、微 係將沿著向斜下方幫曲之上面部3〇a流向斜下方之走行風 引導至引擎60側。在各橫板42L之間、與各橫板俄之間， 設有支持此等之支柱部42a。 前側導板42係在其中央具有沿著向下管23之外周面向上 下延伸，且配合該外周面形狀彎曲之支持部42e，在該支 持部42e形成向側方突出之安裝部42卜在向下管^形成向 側方突出之粍架23b、23b，安裝部42f係被螺栓47固定於 托架23b。 内框43、43係位於前側導板42之左右兩側，在外框、 41之内側（車寬方向之中心側）配置成向上下方向延伸。在 左側之内框43，形成由該内框43之下端緣向内側突出之板 狀之導板43a。此導板43a之前端位於離開向下管以之位 置。又，内框43、43係與前侧導板42一體地被形成。 136090.doc 1353941 又’在向下管23之側方’配置有依照搭乘者之操作發出 警報聲之警報器71。此警報器71位於設在向下管23之右側 之複數橫板42R中位於最上方之橫板42R、與右側之外框 41之上面部4 1 a之間之空間之後’露出於車輛前方。 詳細說明有關導壁50。圖7係由内側（引擎6〇側）挑望導 壁50之側面圖，圖8係導壁50之正面圖。 導壁50係將由引擎60之前方流過來之走行風引導至引擎 60之側面之金屬製之構件，由引擎6〇之側面向側方突出， 以與走行風相向之方式安裝於該引擎6(^詳言之，導壁5〇 係在形成於汽缸蓋63之凹部63a之側方向側方突出，並設 成將走行風引導至該凹部63a(參照圖4)。如圖4所示，導壁 5 0係向側方延伸’並彎曲，向前方延伸。而，其前端緣 5 0a位於比汽缸蓋63之前面63i更前面（參照圖6)。 導壁50係配置成將走行風引導至凹部63a，並形成將該 走行風由凹部63a向後方排出用之空氣流通路。詳言之， 如圖4所示’導壁50之後端緣5〇e係位於凹部63a之前後方 向之中央部之側方，構成凹部63a之後側之壁63d位於比後 端緣50e更後方。藉此，不僅可形成由導壁5〇側向凹部63a 之前侧之空氣流通路B2，也形成由凹部63a之後側向車體 後方之空氣流通路B3。 導壁50係沿著汽缸蓋63之側面63b向前方延伸，構成被 侧面63b與導壁50所包圍之空氣流通路B1。詳言之，導壁 5〇具有側面部50b，該側面部50b係設成由側面63b向側方 突出後，沿著側面63b向前方延伸。側面部50b之上緣及下 136090.doc IS1 1353941 緣係向側面63b側彎曲，導壁50具有由該側面部50b之上緣 及下緣向側面03b側延伸之上面部5〇c與下面部5〇d(參照圖 8) °此等上面部50c與下面部50d之端緣係沿著側面63b向 前方延伸’上面部50c與下面部50d構成空氣流通路B1之上 面及下面。又，如圖4所示，下面部5〇d係形成使其前端緣 50h向車寬方向之外側斜斜地延伸。排氣管66係通過前端 緣50h之前而設在遮板4〇之導板43a之内側向下方延伸。 如圖7所示，導壁50係形成隨著向前方移動，與引擎6〇 之側面63b共同構成之空氣流通路⑴之剖面逐漸變大。詳 言之’上面部50c係對下面部50d向上方傾斜成隨著向前方 移動，使上面部50c與下面部50d之距離逐漸變大。又，如 圖4所示，侧面部50b係對引擎60之側面63b傾斜成其前側 比後側更位於側方（車寬方向之外側）。 如圖5或圖6所示，遮板40之前側導板42位於導壁50之 前。即，左側之橫板42L位於導壁50之前，該橫板42L將走 行風引導至導壁50所形成之空氣流通路Bl(參照圖4)。如 圖4所示，導壁50之前端緣50a係比遮板40之外框41更靠近 車寬方向之中心側，位於比外框41之後端緣4 1 d更前方， 由側方被外框41所覆蓋。又，如圖6所示，形成於内框43 之導板43a係位於下面部50d之前，與該下面部50d平行地 被設置。 如上所述，導壁50係被安裝於引擎60。詳言之，在汽缸 蓋63之側面63b之上下分離之2個位置，形成向側方突出， 且形成有螺栓孔之凸台63j、63e。在導壁5〇之車寬方向之 I36090.doc 12 m 1353941 中心側之端緣形成安裝部5〇f、5()g，該安裝部谢、5〇桃 螺栓59、58固定於凸台63j、63e。 如以上所說明，機車1包含有引擎6〇與導壁5〇，引擎的 係配置於由前方承受車輛之走行所產生之走行風之位置， 導壁50係、由汽缸蓋63之外面突出，並以與走行風相向之方 式安裝於引擎60’將走行風引導至弓丨擎6()之外面。依據機 車1，即使在汽缸蓋63之外面有難以接觸走行風之部分（在 =上之說明中’為凹部63a)之情形，也可藉由導壁5〇將走 行風引導至該部分’故可減低汽缸蓋63之外面之冷卻效果 之不均。又，因導壁50係安裝於引擎6〇之構件故可利用 簡單之構造將走行風引導至汽缸蓋63之外面。即，即使在 引擎60之配置位置及凹部63a之位置有改變之情形，也可 藉由改變導壁50之安裝位置等而容易地將走行風引導至引 擎60之外面。 又，在機車1中，導壁5〇係由汽缸蓋63之側面6外突出 後，向前方延伸。藉此，可有效地將由前方流過來之走行 風引導至汽缸蓋63之側面63b。 又，導壁50係具有沿著汽缸蓋63之側面63b向前方延伸 之侧面部50b、及由該側面部5〇b之緣向側面6儿延伸之上 面部50c與下面部50d。藉此，可抑制側面部5〇b所承受之 走行風不被引導至汽缸蓋63之側面63b而迂迴過側面部5〇b 流向車體後方。 又，導壁50係沿著汽缸蓋63之側面63b向前方延伸構 成被該側面63b與該導壁5〇所包圍之空氣流通路Bi，導壁According to the present invention, even if a portion where the traveling wind is hard to be contacted is generated outside the engine, the traveling wind can be guided to the portion by the guide wall, so that the uneven cooling effect outside the engine can be reduced. x Since the guide wall is attached to the engine member, the traveling wind can be guided to the outside of the engine by a simple structure as compared with the case where the vehicle body cover is formed such that the vehicle body cover guides the traveling wind to the outside of the engine. Further, the straddle type vehicle is a vehicle in which a rider sits on a seat cushion, such as a locomotive (including a speed keda), a snowmobile, a four-wheeled truck, or the like. [Embodiment] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a side elevational view of a locomotive of an embodiment of the present invention, and Fig. 2 is an enlarged side elevational view of the front portion of the locomotive 1. As shown in Fig. 1, the locomotive 1 has a front wheel 3, a rear wheel 4, a body frame 20, a front acoustic board 30' rectifying plate 39, a shutter 40, a guide wall 50, and an engine 6''. Further, the body frame 20 includes a head pipe 21, a main pipe 22, and a down pipe 23. The head pipe 21 is located at the front end of the body frame 20, and rotatably supports a steering shaft (not shown) disposed on the inner side thereof. The front end of the main pipe 22 and the upper end of the down pipe 23 136090.doc • 6 · IS] 1353941 * (front end) is connected to the head pipe 21. The main pipe 22 extends rearward from the head pipe 21, and the lower pipe 23 extends obliquely downward from the head pipe 21. A fuel tank 5 for storing fuel is disposed above the main pipe 22, and a seat cushion 6 for occupants is disposed behind the fuel tank 5. The upper bracket 8 and the lower bracket are attached to the upper end and the lower end of the steering shaft. The upper bracket 8 and the lower bracket 7 are held by the left and right ends of the steering bracket 7 to the upper portion of the front suspension 9. The front suspension 9 is provided to extend obliquely downward, and the axle of the front wheel 3 is supported by the lower end portion thereof. Further, the front suspension 9 is an upright suspension having an outer tube 9a at its lower portion, and the outer tube is inserted outside the inner tube from above. Above the outer S 9a, a large diameter portion 9c having a diameter larger than the other portion of the outer tube is formed. The front fender 30 is disposed between the pair of front suspensions 9, and is covered with the top wheel 3 from above. Fig. 3 is a perspective view of the front fender 30 in the case where the front fender 3 is viewed in the direction indicated by III in Fig. 2. As shown in FIG. 2 or FIG. 3, the front fender 30 has an upper surface portion 3a, a rear side surface #30b, and a front side surface portion 30c. The upper face 3〇a is formed to be centered on the axle of the front wheel 3 and is located obliquely above the front wheel 3. The rear side surface portion 3'b is extended downward from the left and right edges of the upper surface portion 3a, and is located on the side of the front wheel 3 and inside the front suspension frame 9 (center side in the vehicle width direction) (see Fig. 3). The front side surface portion 30c is further extended downward from the left and right edges of the upper surface 30a, and is located on the side of the front wheel 3 and is immediately adjacent to the I frame 9 (see Fig. 3). As shown in Fig. 3, the front side center portion extends obliquely rearward toward the outer side of the outer peripheral surface of the outer tube 9a in the vehicle width direction. That is, the front side portion 3Ge system is gradually enlarged toward the side as it approaches the front suspension 9. Thereby, during the running of the vehicle, a smooth airflow A1 can be formed which is rearward along the front side surface portion 30c 136090.doc 1-353941 to the side of the outer tube 9& As shown in Fig. 2, the rectifying plate 39 is a plate-like member that is long in the vertical direction, and is disposed behind the outer tube 9a. Further, as shown in Fig. 3, the flow regulating plate 39 is disposed so as to be inclined from the outer circumferential surface of the outer tube 9a toward the center side in the vehicle width direction, and the rear end edge 39b is closer to the center side than the front end edge 39a. Thereby, it is possible to form the airflow A2 which is smoothly slanted rearward from the side of the outer tube % along the rectifying plate 39. Further, as shown in Fig. 3, the rectifying plate 39 has a plate-like mounting portion on the inner side thereof. The mounting portion 39c is bolted to the boss 9d provided in the large diameter 4 9c of the outer tube, for example. Further, as shown in Fig. 2, the brake hose 13 is disposed behind the rectifying plate 39. This brake hose 13 is connected to a caliper 12 that sandwiches the brake disc 11 that rotates simultaneously with the front wheel 3. The engine 60 is an air-cooled engine that is cooled by the wind, and is disposed at the front and the left and right sides of the front fender 3 and flows to the rear of the vehicle body when the vehicle is traveling from the front (in the direction indicated by Fr). position. In detail, as shown in Fig. 2, the engine 60 is disposed to be exposed to the outside after 3 inches of the front dredging board. Further, the engine 60 is located below the main pipe 22 and is buckled rearward (refer to FIG. D' by the main pipe 22 (four) frame, and is supported by the bracket 23a provided at the front end of the down pipe 23. As shown in Fig. 2, the engine The 60-series includes a vapor red body in which a cylinder (not shown) is housed in a crankcase 61' (not shown), a cylinder head 63 in which a combustion chamber for fuel combustion is formed, and a cylinder cover that covers the cylinder head. The cover of the cymbal 61 is located at the lower part of the engine 6 ' 'the cylinder block 62 is disposed on the upper portion of the crank cylinder & the arm sleeve 61 so that the axis of the cylinder is obliquely upward. The cylinder head 63 is attached to the 'further Above the rainbow 62. Also on the side (four) of the cylinder head 63, there is mounted 136090.doc IS1 1353941 for a spark plug 65 containing a mixture of air and fuel delivered to the combustion chamber. The spark plug 65 is attached to the cylinder head 63. The outside is inserted, and the front end portion reaches the combustion chamber. Further, 'the cooling plate 60a is formed on the outer surface of the cylinder head 63 and the vapor red body 62. FIG. 4 is a sectional view taken along line IV-IV shown in FIG. 2. As shown, the side surface 63b of the cylinder head 63 is provided with a recess 63a recessed inwardly. The side wall 63f of the 3a is located further inward than the other side of the side surface 63b (inside). The bottom wall 63h' of the recess 63a forms a plug hole 63c into which the spark plug 65 is inserted. Further, as shown in Fig. 2, the spark plug 65' The plug cover 65a that connects the spark plug 65 and the ignition coil (not shown) is covered. Further, on the side of the recess 63a, a guide wall 50 for guiding the traveling wind to the recess 63a is disposed. As shown in Fig. 2, before the engine 60 and behind the front fender 3, a shutter 40 is disposed. The shutter 40 can pass over the front fender 3 and the side. The traveling wind is guided to the engine 60. Fig. 5 is a front view of the shutter 40, and Fig. 6 is a side view of the shutter 40 and the guide wall 50. As shown in Fig. 5, the shutter 4 has a cylinder head 63 and a cylinder block 62. The front side guide 42 is located on the left and right outer frames 41 and 41 of the front side guide 42 and the left and right sides of the front side guide 42 and the inner sides of the outer frames 41 and 41 (the center side in the vehicle width direction). The inner frames 43, 43. Further, in Fig. 6, the outer frame 41 and the inner frame 43 are partially cut away to show the side guide 42 disposed on the inner side thereof. 41, 41 are on the left and right of the down tube 23, supported by the down tube 23. In detail, a reinforcing plate 28 is provided between the upper end of the down tube 23 and the main tube 22 (refer to Fig. 1). The reinforcing plate 28 is provided with laterally extending stays 49, 136090.doc m 1353941 49. As shown in Fig. 5, at the front ends of the stays 49, 49, cylindrical shock absorbers 49a, 49a are provided. The 41 is above the front side guide 42 and has an upper surface portion extending toward the lower tube 23 side, and the front end of the upper surface is formed with a mounting portion 41b that grips the damper 49a. Further, struts 48, 48 extending laterally are attached to the bracket 23a provided at the lower end of the down tube 23. A mounting portion 41c that is formed toward the lower tube 23 side is formed at a lower edge of the outer frame 41, and the mounting portion 41 is fixed at the front end. The front side guide 42 is attached to the lower tube 23 and the outer frame 41. There are a plurality of horizontal plates 42L and 42R arranged slightly horizontally. The plurality of (here, three) horizontal plates 42L are arranged on the left side of the down tube 23 so as to be arranged up and down, and plural (here, three) horizontal plates 42r The right side of the down tube 23 is arranged to be arranged up and down. The plurality of horizontal plates are hung, and the micro-systems are guided to the side of the engine 60 along the running wind that flows obliquely downward from the upper surface 3〇a of the obliquely lower upper arm. On each horizontal plate 42L Between each of the horizontal plates, there is provided a pillar portion 42a supporting the same. The front side guide 42 has a central portion extending upward and downward along the outer circumferential surface of the downward tube 23 at the center thereof, and is curved in conformity with the shape of the outer circumferential surface. The support portion 42e is formed with the attachment portion 42 that protrudes laterally in the support portion 42e, and the trusses 23b and 23b that protrude to the side are formed in the downward tube, and the attachment portion 42f is fixed to the bracket 23b by the bolt 47. The frames 43, 43 are located on the left and right sides of the front side guide 42 and on the inner side of the outer frame 41 (the center side in the vehicle width direction) It is arranged to extend in the up-down direction. In the inner frame 43 on the left side, a plate-shaped guide plate 43a projecting inward from the lower end edge of the inner frame 43 is formed. The front end of the guide plate 43a is located away from the lower tube. The inner frames 43, 43 are integrally formed with the front side guide 42. 136090.doc 1353941 Further, 'the side of the down tube 23' is provided with an alarm 71 that sounds an alarm in accordance with the operation of the rider. The device 71 is located in front of the vehicle after being located in the space between the uppermost horizontal plate 42R and the upper surface 41 1 a of the right outer frame 41 disposed on the right side of the down tube 23. Referring to the guide wall 50. Fig. 7 is a side view of the guide wall 50 from the inside (engine 6〇 side), and Fig. 8 is a front view of the guide wall 50. The guide wall 50 guides the wind that flows from the front of the engine 60. A metal member to the side of the engine 60 protrudes laterally from the side of the engine 6 to be mounted to the engine 6 in a manner to face the running wind (in detail, the guide wall 5 is formed in the cylinder head The side of the recess 63a of the 63 protrudes laterally and is arranged to guide the traveling wind to the concave 63a (refer to Fig. 4). As shown in Fig. 4, the guide wall 50 extends laterally and bends to extend forward. The front end edge 50a is located forward of the front face 63i of the cylinder head 63 (refer to the figure). 6) The guide wall 50 is arranged to guide the traveling wind to the concave portion 63a, and to form an air flow passage for discharging the traveling wind from the concave portion 63a to the rear. In detail, as shown in Fig. 4, the rear end of the guide wall 50 The edge 5〇e is located on the side of the central portion in the front-rear direction of the concave portion 63a, and the wall 63d on the rear side of the concave portion 63a is located rearward of the rear end edge 50e. Thereby, not only the lateral wall portion 63a can be formed by the guide wall 5〇 The air flow path B2 on the front side also forms an air flow path B3 which is laterally rearward of the vehicle body by the recess 63a. The guide wall 50 extends forward along the side surface 63b of the cylinder head 63, and constitutes an air flow path B1 surrounded by the side surface 63b and the guide wall 50. More specifically, the guide wall 5A has a side surface portion 50b which is formed to protrude laterally from the side surface 63b and extends forward along the side surface 63b. The upper edge of the side surface portion 50b and the lower edge 136090.doc IS1 1353941 are curved toward the side surface 63b side, and the guide wall 50 has an upper surface 5〇c and a lower surface extending from the upper edge and the lower edge of the side surface portion 50b toward the side surface 03b side. 5〇d (refer to Fig. 8) The edge portions of the upper surface portion 50c and the lower surface portion 50d extend forward along the side surface 63b. The upper surface portion 50c and the lower surface portion 50d constitute the upper surface and the lower surface of the air flow path B1. Further, as shown in Fig. 4, the lower portion 5〇d is formed such that its front end edge 50h extends obliquely toward the outer side in the vehicle width direction. The exhaust pipe 66 extends downward from the inner side of the guide plate 43a of the shutter 4A before the front end edge 50h. As shown in Fig. 7, the guide wall 50 is formed such that the cross section of the air flow path (1) which is formed in conjunction with the side surface 63b of the engine 6 is gradually increased as moving forward. Specifically, the upper surface portion 50c is inclined upward toward the lower surface portion 50d so as to gradually move forward, and the distance between the upper surface portion 50c and the lower surface portion 50d is gradually increased. Further, as shown in Fig. 4, the side surface portion 50b is inclined such that the front side 63b of the engine 60 is located on the side (the outer side in the vehicle width direction) on the front side. As shown in Fig. 5 or 6, the front side guide 42 of the shutter 40 is located in front of the guide wall 50. That is, the horizontal plate 42L on the left side is located before the guide wall 50, and the horizontal plate 42L guides the traveling wind to the air flow path B1 formed by the guide wall 50 (see Fig. 4). As shown in FIG. 4, the front end edge 50a of the guide wall 50 is closer to the center side in the vehicle width direction than the outer frame 41 of the shutter 40, and is located further forward than the rear edge 4 1 d of the outer frame 41, and is laterally outward. Covered by block 41. Further, as shown in Fig. 6, the guide plate 43a formed on the inner frame 43 is placed in front of the lower surface portion 50d, and is provided in parallel with the lower surface portion 50d. As described above, the guide wall 50 is attached to the engine 60. More specifically, at two positions separated above and below the side surface 63b of the cylinder head 63, bosses 63j and 63e which protrude toward the side and are formed with bolt holes are formed. The mounting portion 5〇f, 5()g is formed at the edge of the center side of the I36090.doc 12 m 1353941 in the width direction of the guide wall 5〇, and the mounting portion Xie, the 5〇 peach bolts 59, 58 are fixed to the boss 63j. 63e. As described above, the locomotive 1 includes an engine 6 〇 and a guide wall 5 〇. The engine is disposed at a position where the forward wind is generated by the front of the vehicle, and the guide wall 50 is protruded from the outer surface of the cylinder head 63. It is mounted on the engine 60' in a manner opposite to the wind, and guides the wind to the outside of the bow engine 6(). According to the locomotive 1, even if there is a portion on the outer surface of the cylinder head 63 that is difficult to contact the traveling wind (in the description of = is a recess 63a), the traveling wind can be guided to the portion by the guide wall 5? The unevenness of the cooling effect on the outer surface of the cylinder head 63 can be reduced. Further, since the guide wall 50 is attached to the member of the engine 6, the traveling wind can be guided to the outside of the cylinder head 63 by a simple structure. That is, even if the position of the engine 60 and the position of the recess 63a are changed, the traveling wind can be easily guided to the outside of the engine 60 by changing the mounting position of the guide wall 50 or the like. Further, in the locomotive 1, the guide wall 5 is protruded outward from the side surface 6 of the cylinder head 63 and extends forward. Thereby, the running wind flowing from the front can be efficiently guided to the side surface 63b of the cylinder head 63. Further, the guide wall 50 has a side surface portion 50b extending forward along the side surface 63b of the cylinder head 63, and a surface portion 50c and a lower surface portion 50d extending from the edge of the side surface portion 5b to the side surface 6. Thereby, it is possible to prevent the traveling wind that is received by the side surface portion 5b from being guided to the side surface 63b of the cylinder head 63 and returning to the rear side of the vehicle body by the side surface portion 5b. Further, the guide wall 50 extends forward along the side surface 63b of the cylinder head 63 to form an air flow path Bi surrounded by the side surface 63b and the guide wall 5, and the guide wall
I36090.doc 13 1ST 1353941 . 50係形成隨著向前方移動，空氣流通路B1之剖面逐漸變 大。藉此’可利用導壁50承受更多之走行風。 又，導壁50係由汽缸蓋63之側面63b突出後，向前方延 伸，其前端50a位於比汽缸蓋63更前方。藉此，可利用導 壁50承受碰到汽缸蓋63而變成亂流前之走行風。 又，導壁50係沿著汽缸蓋63之側面6补向前方延伸，構 成被該側面63b與該導壁50所包圍之空氣流通路Βι，在導 壁50之前，配置有將走行風引導至空氣流通路扪之第2導 壁（在以上之說明中，為遮板4〇)。藉此，可有效地將走行 風引導至空氣流通路B j。 又，上述第2導壁係配置於引擎6〇之前，將走行風引導 至該引擎60之遮板40。藉此，與設置將走行風引導至導壁 5〇之專用之構件之情形相比，可減少零件個數。 又，導壁50係由汽缸蓋63之側面63b突出後，向前方延 伸，位於比遮板40之後端緣41d更前方。藉此，可圓滑地 • 將遮板4〇所形成之走行風之氣流引導至導壁50所構成之空 氣流通路B 1。 又，導壁50係具有下面部5〇d，其係構成空氣流通路扪 下面第2導壁（在以上之說明中，為遮板4〇)係具有板部 Y在 '上之說明中，為導板43a)，其係在該下面部5(^之 前，向該下面部50d之延伸方向延伸。藉此，可更有效地 將走行風引導至空氣流通路B 1。 又，在汽缸蓋63之側面63b形成向内側凹入之凹部63丑， 導壁50係配置成將走行風引導至凹部—，並形成可將被 rsi 136090.doc 1353941 導壁50引導之走行風由該凹部63a排出用之空氣流通路 B3。藉此，可使流入凹部63a之走行風圓滑地由該凹部63a 流出，故可増加凹部63a之冷卻效果。 又，凹部63a係形成於引擎60之側面63b，導壁50係配置 成可形成將被該導壁50引導至凹部63 a之前述走行風向後 方排出之空氣流通路B3。藉此，可使流入凹部63 a之空氣 向後方排出，使凹部63a之空氣流通路B2、B3之空氣流變 得圓滑。I36090.doc 13 1ST 1353941 . The 50-line formation gradually increases in cross section of the air flow path B1 as it moves forward. Thereby, the guide wall 50 can be used to withstand more running winds. Further, the guide wall 50 projects from the side surface 63b of the cylinder head 63 and extends forward, and the front end 50a is located forward of the cylinder head 63. Thereby, the guide wall 50 can be subjected to the running wind before hitting the cylinder head 63 and becoming turbulent. Further, the guide wall 50 is extended toward the front along the side surface 6 of the cylinder head 63, and constitutes an air flow path 包围m surrounded by the side surface 63b and the guide wall 50. Before the guide wall 50, the guide air is guided to the traveling wind. The second guide wall of the air flow path (in the above description, the shutter 4). Thereby, the running wind can be efficiently guided to the air flow path B j . Further, the second guide wall is disposed before the engine 6 and guides the traveling wind to the shutter 40 of the engine 60. Thereby, the number of parts can be reduced as compared with the case where the member for guiding the traveling wind to the guide wall 5 is provided. Further, the guide wall 50 is protruded forward by the side surface 63b of the cylinder head 63, and is located forward of the end edge 41d of the shutter 40. Thereby, it is possible to smoothly and smoothly guide the airflow of the traveling wind formed by the shutter 4 to the air flow passage B1 constituted by the guide wall 50. Further, the guide wall 50 has a lower portion 5〇d which constitutes the second guide wall (in the above description, the shutter 4) in the air flow passage, and has a plate portion Y in the description of The guide plate 43a) is extended in the extending direction of the lower portion 50d before the lower portion 5, thereby guiding the traveling wind to the air flow passage B1 more effectively. The side 63b of 63 forms a concave portion 63 recessed toward the inner side, and the guide wall 50 is configured to guide the running wind to the recess, and form a running wind that can be guided by the rsi 136090.doc 1353941 guide wall 50 to be discharged from the recess 63a. The air flow path B3 is formed so that the traveling wind flowing into the concave portion 63a can smoothly flow out through the concave portion 63a, so that the cooling effect of the concave portion 63a can be increased. Further, the concave portion 63a is formed on the side surface 63b of the engine 60, and the guide wall The 50th system is disposed so as to form an air flow path B3 for discharging the traveling wind that is guided by the guide wall 50 to the concave portion 63a to the rear. Thereby, the air flowing into the concave portion 63a can be discharged rearward, and the air of the concave portion 63a can be circulated. The air flow of the roads B2 and B3 becomes smooth.
又，引擎60係包含内部形成燃燒室之汽缸蓋63，導壁5〇 係以由汽缸蓋63之侧面63b突出之方式被安裝於引擎6〇 ’ 將走行風引導至汽缸蓋63之側面63b »藉此，可增加產生 多量之熱之汽缸蓋63之冷卻效果。 又，汽缸蓋63係具有火星塞65 ,其係由該汽缸蓋。之側 面63b插入該汽缸蓋之燃燒室；導壁5〇係將走行風引導至 汽缸蓋63之側面63b之火星塞65之安裝位置（在以上之說明Further, the engine 60 includes a cylinder head 63 that internally forms a combustion chamber, and the guide wall 5 is attached to the engine 6'' so as to protrude from the side surface 63b of the cylinder head 63. The traveling wind is guided to the side 63b of the cylinder head 63. Thereby, the cooling effect of the cylinder head 63 which generates a large amount of heat can be increased. Further, the cylinder head 63 has a spark plug 65 which is the cylinder head. The side surface 63b is inserted into the combustion chamber of the cylinder head; the guide wall 5 is for guiding the traveling wind to the mounting position of the spark plug 65 on the side 63b of the cylinder head 63 (in the above description)
中，為凹部63a)。藉此，可增加火星塞65或其附近之冷卻 效果。 又，在機車1中’火星塞65之安裝位置係設置於由汽缸 蓋63之側面63b向内側凹入之位置(在以上之說明中，為凹 部63a)。藉此，即使在走行風難以流向凹部仏之情形 也可藉由導壁50所引導之走行風冷卻凹部…，可二氏引 擎60之外面之冷卻效果之不均。 又，本發明並不限於以上 更。例如，在以上之說明中 說明之機車1 ’可作種種之變 ’導壁50將走行風料至作為 136090.doc 1353941 引擎60之外面之汽缸蓋63之側面63b。但導壁5〇也可設 成將走行風引導至引擎6〇之外面之其他部分。例如’導壁 5〇也可設成將走行風引導至汽缸體62、及汽缸蓋63之背面 62g、63g。 又，引擎60雖以空冷式之引擎加以說明，但引擎60也可 為水冷式之引擎。此情形，也可以冷卻水冷卻引擎,並 將導壁安裝成可將走行風引導至該冷卻水不能充分冷卻之 部分。 又，在以上之說明中，作為跨坐型車輛，雖以機車 例加以說明’但本發明例如也可適用於四輪貨車等。 【圖式簡單說明】 圖1係有關本發明之實施型態之機車之側面圖。 圖2係上述機車之前部之放大側面圖。 圖3係圖2之III所示之方向之前擋泥板之立體圖。 圖4係圖2所示之iV_IV線之剖面圖。 圖5係遮板之正面圖。 圖6係遮板及導壁之側面圖。 圖7係由内側（引擎側）挑望導壁之側面圖。 圖8係導壁之正面圖。 【主要元件符號說明】 1 3 4 7 機車 前輪 後輪 下托架 136090.doc -16· 1353941 8 上托架 9 前懸架 20 車體架 21 頭管 22 主管 23 向下管 30 前擋泥板 39 整流板 40 遮板 41 外框 42 前側導板In the middle, it is a recess 63a). Thereby, the cooling effect of the Mars plug 65 or its vicinity can be increased. Further, in the locomotive 1, the mounting position of the spark plug 65 is provided at a position recessed inward by the side surface 63b of the cylinder head 63 (in the above description, the recess 63a). Thereby, even in the case where it is difficult for the running wind to flow to the concave portion, the cooling effect of the outer surface of the second engine 60 can be uneven by the traveling air cooling concave portion guided by the guide wall 50. Further, the present invention is not limited to the above. For example, the locomotive 1' described in the above description can be varied. The guide wall 50 will travel to the side 63b of the cylinder head 63 which is the outer face of the engine 136090.doc 1353941. However, the guide wall 5〇 can also be configured to guide the running wind to other parts of the engine 6〇. For example, the guide wall 5〇 may be provided to guide the traveling wind to the cylinder block 62 and the back surfaces 62g and 63g of the cylinder head 63. Further, although the engine 60 is described as an air-cooled engine, the engine 60 may be a water-cooled engine. In this case, it is also possible to cool the water-cooled engine and install the guide wall to guide the traveling wind to the portion where the cooling water cannot be sufficiently cooled. In the above description, the straddle type vehicle is described by way of a locomotive example. However, the present invention is also applicable to, for example, a four-wheeled truck. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a side view of a locomotive relating to an embodiment of the present invention. Figure 2 is an enlarged side elevational view of the front portion of the locomotive. Figure 3 is a perspective view of the front fender in the direction shown in III of Figure 2. Figure 4 is a cross-sectional view of the iV_IV line shown in Figure 2. Figure 5 is a front view of the shutter. Figure 6 is a side view of the shutter and the guide wall. Fig. 7 is a side view showing the guide wall from the inner side (engine side). Figure 8 is a front elevational view of the guide wall. [Main component symbol description] 1 3 4 7 Locomotive front wheel Rear wheel lower bracket 136090.doc -16· 1353941 8 Upper bracket 9 Front suspension 20 Body frame 21 Head tube 22 Main tube 23 Down tube 30 Front fender 39 Rectifier plate 40 visor 41 outer frame 42 front side guide
43 50 50b 50c 50d 60 61 62 63 63a 63b A1、A2、B1、B2、 内框 導壁 側面部 上面部 下面部 引擎 曲軸箱 汽缸體 汽缸蓋 凹部 汽缸蓋之側面 B3 空氣流通路 [S] 136090.doc •17·43 50 50b 50c 50d 60 61 62 63 63a 63b A1, A2, B1, B2, inner frame guide wall side upper part lower part engine crankcase cylinder block cylinder head recessed cylinder side side B3 air flow path [S] 136090. Doc •17·