200933020 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種具備淨化向引擎供給之空氣之办 清器的跨坐型車輛’特別係關於一種防止水 ：:: 清器之吸入口浸入之技術。 工軋濾 【先前技術】 • 先前’有如下之摩托車，其具備從向引學供給之… 去除塵埃等之空氣遽清器，該空氣據清器配置於座位之下 ❹ 方（例如專利文獻丨）。錢濾清器之吸人口需要以不 等從其浸入之方式設置。在專利文獻丄所揭示之車耗中: 吸入口係朝向上方開口’座位之背面係位於吸入 方。 夂上 [專利文獻1]日本特開2004-345634號公報 【發明内容】 [發明所欲解決之問題] 4右使位於空氣濾清器上方之座位之背面接近吸入 或為防止水滴等浸入而接近吸入口設置板狀構件，則 有妨礙從吸入口之順暢之空氣流入，降低吸氣效率之可 能。 本發月係繁於上述問題而完成者，纟目的在於提供一種 在座位下方配置有空氣滤清器之跨坐型車輛，其可不引起 吸氣效率之降低m水料浸人空㈣清器内部。 [解決問題之技術手段] 為解決上述問題，本發明之跨坐型車輛，具備：座位； 135684-doc 200933020200933020 IX. OBJECTS OF THE INVENTION: TECHNICAL FIELD The present invention relates to a straddle type vehicle having a device for purifying air supplied to an engine, in particular, a water-proof::: immersion of a suction port of a cleaner Technology. Work-rolling filter [Prior technology] • Previously, there was a motorcycle equipped with an air cleaner that removes dust, etc. from the supply of the air source, which is placed under the seat (for example, patent documents)丨). The suction of the money filter needs to be set in such a way that it is not immersed. In the vehicle consumption disclosed in the patent document: the suction port is open toward the upper side. The back of the seat is located at the suction side. [Patent Document 1] Japanese Laid-Open Patent Publication No. 2004-345634 [Draft of the Invention] [Problems to be Solved by the Invention] 4 The right side of the seat above the air cleaner is brought close to the suction or close to prevent the infiltration of water droplets or the like. When the plate-shaped member is provided at the suction port, there is a possibility that the smooth air flow from the suction port is hindered, and the intake efficiency is lowered. This month's issue is completed by the above problems. The purpose of the present invention is to provide a straddle-type vehicle in which an air cleaner is disposed under the seat, which does not cause a decrease in the efficiency of the suction, and the water is immersed in the air (four). . [Technical means for solving the problem] In order to solve the above problem, the straddle type vehicle of the present invention has: a seat; 135684-doc 200933020
根據本發明，因為係藉由壁包圍空氣濾清器之吸入口 而且’因為吸入口係開口 方’故可擴大吸入口前之 故可防止水滴等由吸入口浸入。而 於形成在座位背面之傾斜面的下方 空間，可抑制包圍吸入口之壁成為吸氣之阻礙。 再者’此處跨坐型車輛係騎乘者跨坐於座位乘坐之車 輛，例如摩托車（包含小輪機踏車）、四輪輕便車、及機動 雪橇等。 【實施方式】 以下，一面參照圖式一面對本發明之一實施形態進行說 明。圖1係本發明之實施形態例之摩托車1之側視圖，圖2 係摩托車1後部之平面圖。又，圖3係摩托車1具備之車體 框架20、空氣濾清器50及後擋泥板4〇之立體圖，圖4係後 撞泥板40之前部立體圖。又，圖5係座位軌條24、空氣遽 清器50及後擋泥板40之側視圖。 135684-doc 200933020 如圖1或圖3所示，摩托車丨具備引擎2、前輪3、後輪4、 車體框架20、座位30、後播泥板40及空氣滤清器50。此 外車體框架具備頭管21、主管22、下管23、左右一對 之座位軌條24、24、縱管25及左右一對之後撐條26、26。 如圖1所不，頭管21係位於車體框架2〇之前端，支持配 置於其内側之轉向軸（未圖示）。在頭管2丨之上側配置有把 手6。轉向軸以托架7、7為中介連結於前又5,且把手6、 前又5、及藉由該前又5所支持之前輪3，係以轉向轴為中 心左右旋轉。 在頭管21連接有主管22之前端與下管23之上端（前端）。 主管22係由頭管21向後方延伸，懸掛位於該主管22下方之 引擎2。下管23係由頭管21向斜下方延伸，支持配置於該 下管23後方之引擎2。 引擎2具有：曲柄轴箱2C、位於曲柄軸箱2c上部之氣缸 體2b及位於該氣虹體2b上部之氣缸頭2a。在氣缸體2b之内 部’形成有氣缸2d，在氣缸頭2a之内部，形成有空氣朝向 氣缸2d流動之吸氣通路2e〇在氣缸頭2a之後方，配置有控 制向氣缸2d流動之空氣量的節流閥體8，該節流閥體8係連 接於吸氣通路2e。此外，在節流閥體8上經由吸氣管道9連 -接有空氣濾清器50«藉由節流閥體8、吸氣管道9、及空氣 濾清器50構成向引擎2供給空氣之空氣路徑。 在引擎2之後方配置有後輪4。引擎2之驅動力係經由未 圖示之鏈條或皮帶等傳遞給後輪4。再者，後輪4係藉由後 臂12之後端加以支持。縱管25係由主管22之後端向下方延 135684-doc 200933020 伸’支持框轴13。後臂12之前端係藉由該栖抽13被支持。 在縱管25之中途位置，連接有後撐條26之前端，且後撐 條26係從與縱管25之連接位置向斜上方延伸，其後端連接 於座位軌條24(參照圖3)。 座位軌條24、24之前端係經由托架27連接於主管22之後 端（參照圖3)。座位軌條24、24係由主管22之後端，於座位 3〇之下方向後方延伸，支持該座位3G。座位3G係位於配置 於主管22上方之燃料箱〗丨之後方。 圖6係圖2所示之之座位3〇之剖面圖，圖7係設置 於座位30背面側之底板部31之底面圖》 座位30係所謂雙座位，於該座位3〇可乘坐前後排列之2 位乘上者。座位30具有用於駕駛者乘坐之前部座位3〇a及 用於駕駛者後面之乘坐者乘坐之後部座位3〇b，前部座位 30a係位於該座位3〇之前部，後部座位3〇b係位於該座位 之後部。 如圖6所示，底板部31係前後方向長的板狀構件，在其 中途位置具有以後侧比前側高之方式向斜上方傾斜之傾斜 4 31 c。傾斜部3 1 c在座位3〇之背面側係位於前部座位3 〇a 之後方後°卩座位30b之前方（Fr所示方向）。亦即，底板部 31係具有位於前部座位3〇a背面側之前側底板部3la，及位 於後部座位3Ob背面侧之後侧底板部3 1 b，傾斜部3 1 c係位 於前側底板部31a與後側底板部31b之間。再者，底板部31 以如下方式彎曲，即使底板部31之寬度方向之端緣31d、 3 1 d位於寬度方向中央之下方（參照圖7)。 135684-doc 200933020 座位30在底板部31之上具有緩衝部32 ^如圖6所示，緩 衝部32係設置於底板部31上面之整個區域，連接由其前端 32a開始直至後端32be又’在形成有傾斜部31<;位置之缓 衝部32之厚度’較該緩衝部32其他部分之厚度薄。即在傾 斜部31c位置之緩衝部32之厚度，較在前部座位3〇a及後部 座位30b之緩衝部32之厚度薄。 如圖7所示’在底板部31，在座位軌條24上設置有支持 座位30之複數減震器31e、31f、31h、31i。減震器31e、 & 31e、31h係以沿底板部31之左側緣31d於前後方向排列之 方式設置’減震器31f、31f、31i係以沿右側緣31d於前後 方向排列之方式設置。於前後方向排列之3個減震器31e、 31e、31h中前側之減震器31e、31e係位於傾斜部31c之 前，位於最後部之減震器3 lh係位於傾斜部3 lc之後。同 樣’於前後方向排列之3個減震器31f、3 If ' 31i中前側之 減震器3 1 f、3 1 f係位於傾斜部3 1 c之前，位於最後部之減震 器31i係位於傾斜部31c之後》 如圖3所示’在座位軌條24、24之後端架設有板狀之支 持桿24a。在座位30配置於座位軌條24之上的狀態，減震 器31h、31i抵接於支持桿24a(參照圖7)，減震器31e、31f 抵接於座位軌條24。 在座位30之背面側，設置有決定該座位30與車體框架20 之相對位置之定位突起31 g與定位孔3 lj。詳細而言，定位 突起31g係設置於減震器31i之中心，突出於支持桿24a側 (參照圖7)。另一方面，在支持桿24a中，在對應於定位突 135684-doc -9- 200933020 起31g之位置，形成有孔24b(參照圖3)，定位突起31g嵌入 孔24b。又’定位孔3 lj係形成於底板部3 1之前端（參照圖 6)。另一方面’如圖3所示，在座位軌條24、24之前端固 定有板狀之托架28，該托架28具有插入部28a，該插入部 28a係向後方延伸，插入底板部31之定位孔3ij〇如此，藉 由在前後離開之位置所設置之定位突起3 i g及定位孔3 i j， 以決定在座位軌條24上之座位30之位置。 後擔泥板4 0係以沿後輪4之外形般·彎曲之形狀（參照圖 © 5)。如圖1所示，後擋泥板40係位於座位3〇之下方，從上 方覆蓋後輪4。 如圖5所示，後擋泥板40具有位於座位軌條24後端之後 的後側擋泥板40a，及位於左右後撐條26、26間之前側擋 泥板40b(參照圖3)。又’前側擋泥板40b具有沿後輪4之外 形而彎曲之板狀的上面部40c，及由該上面部4〇(；之寬度方 向之端緣向上方直立之侧面部40d、4〇d(參照圖4)。再者， 如圖4或圖5所示’在上面部40c之前端連接有支持面部 40e。在該支持面部40e之上面安裝有緩衝器49、49，在該 緩衝器49、49之上配置空氣濾清器50。 空氣渡清器50在侧面視係呈大致三角形狀之箱狀裝置 ，（參照圖5)，其内部配置有用於從外部空氣中去除塵埃之過 濾器（未圖示）。空氣濾清器50配置於後擋泥板4〇與座位％ 之間（參照圖1)。詳細而言’空氣濾清器50係位於後擔泥板 40之支持面部40e之上、座位30具有之底板部31的前側底 板部31a之下方。此外’空氣濾清器50於平面視係位於左 135684-doc -10- 200933020 右一對之座位軌條24、24之間（參照圖2)。再者，在座位軌 條24與後撐條26之侧方配置有侧罩板14，空氣濾清器5〇由 該侧罩板14從側面加以覆蓋（參照圖1)。 如圖5所示’在右側之後撐條26，設置有向上方延伸之 托架26a。在空氣濾清器50之側面，設置有向後方延伸之 安裝部52。該安裝部52’例如藉由螺栓固定於托架26a 上。再者’在左側之後撐條26亦設置有固定於空氣遽清器 5〇之托架（未圖示），空氣濾清器50在後擋泥板4〇之支持面 部40e上’藉由一對之後撐條26、26來支持。 二乳據清器50具有用於吸入外部空氣之吸入口 5i(參照 圖3或圖5)。圖8係吸入口 51之平面圖，圖9係圖8所示之 IX-IX線之空氣濾清器50、後擋泥板40、及座位3〇之剖面 圖。 如圖8或圖9所示，吸入口51係在車輛之寬度方向長的矩 形，以由空氣濾清器50向車體後方（在圖8及圖9中為R所示 方向）突出之方式形成。空氣濾清器5〇係以該吸入口 51朝 向車體後方開口之方式配置，吸入口51之開口方向係朝向 沿底板部31之方向。又，如圖9所示，空氣濾清器5〇係以 其吸入口 51開口於底板部3 1之傾斜部3 1 c的下方之方式配 置。亦即，吸入口 51之前端5 1 b係位於傾斜部3 1 c前側之下 方。再者，在空氣濾清器5〇之前面5〇b形成有朝向車體前 方開口之開口部50a(參照圖3)。上述之吸氣管道9連接於該 開口部50a，由吸入口51所吸入之空氣，通過配置於空氣 濾清器50内部之過濾器由開口部5〇a排出。 135684-doc • 11 · 200933020 在座位30之背面及後擋泥板40之上面，形成有從該背面 或上面直立之複數之壁部34、35、44、45。此等壁部係位 於吸入口 51之前方（吸入口 51之開口方向，在圖8或圖9*r 所示之方向）及側方’且傾斜部3 1 c、後擋泥板40之上面及 此等壁部34、35、44、45包圍吸入口 51。 詳細而言’如圖8或圖9所示，在設置於座位3〇背面側之 底板部31上形成有前壁部34。該前壁部34係直立於空氣渡 清器50側（後擋泥板40侧），位於上述吸入口 51之前方（吸入 口 51之開口方向）。 又’在底板部3 1形成有側壁部35、35(參照圖7) »該側 壁部35、35係直立於空氣濾清器50側（後擋泥板4〇側），位 於吸入口 5 1之左右兩側。側壁部3 5、3 5之長度係較前壁部 34長，側壁部35、35越過吸入口 51向下方延伸。 吸入口 5 1係位於後擋泥板40之上面部4〇c之上方。而 且，在上面部40c形成有從該上面部4〇c直立於空氣遽清器 50側（座位30側）之相對壁部44。該相對壁部44係從上述吸 入口 51向前方遠離之位置’與該吸入口 51相對。相對壁部 44向上方延伸直至與設置在座位3〇之前壁部34重昼之高 度’彼等之間設有間隙。 此外，在上面部40c上形成有側壁部45、45(參照圖4)。 該側壁部45、45亦從上述上面部4〇c直立於空氣濾清器5〇 侧（座位30側），位於吸入口 51之侧方。側壁部45、45向上 方延伸直至與設置於座位30之側壁部35、35重疊之位置， 彼等之間亦設有間隙。 135684-doc 12 200933020 再者，如圖4所示，相對壁部44之端緣44a、4乜與側壁 部45、45之間設有間隙，座位30之側壁部35、35係位於端 緣44a、44a與側壁部45、45之間（參照圖8)。 此外，如圖9所示，在上面部4〇c上形成有下側壁部46。 該下侧壁部46係朝向吸入口 51之下面5U，由該上面部4〇c 直立。又，在座位30之傾斜部31〇上，朝向吸入口 51之上 面51c，形成有從該傾斜部31c直立之上壁部刊。According to the present invention, since the suction port of the air cleaner is surrounded by the wall and the opening is made by the suction port, the water inlet can be prevented from being infiltrated by the suction port before the suction port can be enlarged. On the other hand, in the space below the inclined surface formed on the back surface of the seat, it is possible to suppress the wall surrounding the suction port from being inhaled. Furthermore, the straddle-type vehicle here is a rider seated on a seat, such as a motorcycle (including a small turbine), a four-wheeled light vehicle, and a motorized sled. [Embodiment] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Fig. 1 is a side view of a motorcycle 1 according to an embodiment of the present invention, and Fig. 2 is a plan view of a rear portion of the motorcycle 1. 3 is a perspective view of the vehicle body frame 20, the air cleaner 50, and the rear fender 4, which are provided in the motorcycle 1, and FIG. 4 is a perspective view of the front portion of the rear mud plate 40. Further, Fig. 5 is a side view of the seat rail 24, the air cleaner 50, and the rear fender 40. 135684-doc 200933020 As shown in FIG. 1 or FIG. 3, the motorcycle has an engine 2, a front wheel 3, a rear wheel 4, a body frame 20, a seat 30, a rear mud board 40, and an air cleaner 50. The outer body frame includes a head pipe 21, a main pipe 22, a lower pipe 23, a pair of right and left seat rails 24, 24, a vertical pipe 25, and a pair of right and left rear stays 26, 26. As shown in Fig. 1, the head pipe 21 is located at the front end of the body frame 2, and supports a steering shaft (not shown) disposed inside thereof. A handle 6 is disposed above the head tube 2A. The steering shaft is coupled to the front side 5 by means of the brackets 7, 7 and the handle 6, the front 5, and the front wheel 3 supported by the front and the fifth are rotated about the center of the steering shaft. A front end of the main pipe 22 and an upper end (front end) of the lower pipe 23 are connected to the head pipe 21. The main pipe 22 extends rearward from the head pipe 21 and suspends the engine 2 located below the main pipe 22. The lower tube 23 extends obliquely downward from the head pipe 21 to support the engine 2 disposed behind the lower tube 23. The engine 2 has a crankcase 2C, a cylinder block 2b located at an upper portion of the crankcase 2c, and a cylinder head 2a located at an upper portion of the gas siphon 2b. A cylinder 2d is formed inside the cylinder block 2b, and an intake passage 2e through which the air flows toward the cylinder 2d is formed inside the cylinder head 2a, and the amount of air that flows to the cylinder 2d is disposed behind the cylinder head 2a. The throttle body 8 is connected to the intake passage 2e. Further, an air cleaner 50 is connected to the throttle body 8 via an intake duct 9 to provide air to the engine 2 through the throttle body 8, the intake duct 9, and the air cleaner 50. Air path. A rear wheel 4 is disposed behind the engine 2. The driving force of the engine 2 is transmitted to the rear wheel 4 via a chain or a belt (not shown). Furthermore, the rear wheel 4 is supported by the rear end of the rear arm 12. The longitudinal tube 25 is extended from the rear end of the main pipe 22 by 135684-doc 200933020 to the support frame shaft 13. The front end of the rear arm 12 is supported by the habitat 13. At the middle position of the vertical pipe 25, the front end of the rear stay 26 is connected, and the rear stay 26 extends obliquely upward from the connection position with the vertical pipe 25, and the rear end thereof is connected to the seat rail 24 (refer to FIG. 3). . The front ends of the seat rails 24, 24 are connected to the rear end of the main pipe 22 via the bracket 27 (refer to Fig. 3). The seat rails 24, 24 are extended from the rear end of the main pipe 22 in the direction of the seat 3 , to support the seat 3G. The seat 3G is located behind the fuel tank disposed above the main pipe 22. 6 is a cross-sectional view of the seat 3 shown in FIG. 2, and FIG. 7 is a bottom view of the bottom plate portion 31 provided on the back side of the seat 30. The seat 30 is a so-called double seat, and the seat 3 can be arranged before and after the ride. 2 digits multiplied by. The seat 30 has a rear seat 3〇a for the driver to ride and a rear seat 3〇b for the occupant behind the driver, the front seat 30a is located at the front of the seat 3〇, and the rear seat 3〇b is Located at the back of the seat. As shown in Fig. 6, the bottom plate portion 31 is a plate-like member that is long in the front-rear direction, and has a slope 4 31 c that is inclined obliquely upward in a manner in which the rear side is higher than the front side. The inclined portion 3 1 c is located behind the front seat 3 〇 a on the back side of the seat 3 , and is located in front of the seat 30 b (direction indicated by Fr). That is, the bottom plate portion 31 has a front bottom plate portion 31a on the back side of the front seat 3〇a, and a rear bottom plate portion 3 1b on the back side of the rear seat 3Ob, and the inclined portion 3 1 c is located on the front side bottom plate portion 31a and Between the rear side bottom plate portions 31b. Further, the bottom plate portion 31 is curved as follows, and the end edges 31d and 31d in the width direction of the bottom plate portion 31 are located below the center in the width direction (see Fig. 7). 135684-doc 200933020 The seat 30 has a buffer portion 32 above the bottom plate portion 31. As shown in Fig. 6, the buffer portion 32 is disposed over the entire area of the bottom plate portion 31, and the connection starts from the front end 32a until the rear end 32be The thickness of the buffer portion 32 where the inclined portion 31 is formed is thinner than the thickness of the other portion of the buffer portion 32. That is, the thickness of the buffer portion 32 at the position of the inclined portion 31c is thinner than the thickness of the buffer portion 32 of the front seat 3a and the rear seat 30b. As shown in Fig. 7, in the bottom plate portion 31, a plurality of dampers 31e, 31f, 31h, 31i supporting the seat 30 are provided on the seat rail 24. The dampers 31e, <31e, 31h are provided so as to be arranged in the front-rear direction along the left side edge 31d of the bottom plate portion 31. The dampers 31f, 31f, 31i are arranged to be aligned in the front-rear direction along the right edge 31d. The dampers 31e, 31e on the front side of the three dampers 31e, 31e, 31h arranged in the front-rear direction are located before the inclined portion 31c, and the damper 3 lh located at the rear is located behind the inclined portion 3 lc. Similarly, the shock absorbers 3 1 f, 3 1 f of the front side of the three shock absorbers 31f, 3 If ' 31i arranged in the front-rear direction are located before the inclined portion 3 1 c, and the shock absorber 31i located at the last portion is located. After the inclined portion 31c" as shown in Fig. 3, a plate-shaped support rod 24a is provided at the end of the seat rails 24, 24. In a state where the seat 30 is placed on the seat rail 24, the dampers 31h and 31i abut against the support lever 24a (see Fig. 7), and the dampers 31e and 31f abut against the seat rail 24. On the back side of the seat 30, positioning projections 31g and positioning holes 31j which determine the relative positions of the seat 30 and the body frame 20 are provided. Specifically, the positioning projection 31g is provided at the center of the damper 31i and protrudes from the side of the support lever 24a (refer to Fig. 7). On the other hand, in the support rod 24a, a hole 24b (refer to Fig. 3) is formed at a position 31g from the positioning projection 135684-doc -9-200933020, and the positioning projection 31g is fitted into the hole 24b. Further, the positioning hole 3 lj is formed at the front end of the bottom plate portion 3 1 (see Fig. 6). On the other hand, as shown in Fig. 3, a plate-shaped bracket 28 is fixed at the front end of the seat rails 24, 24. The bracket 28 has an insertion portion 28a which extends rearward and is inserted into the bottom plate portion 31. The positioning hole 3ij is such that the position of the seat 30 on the seat rail 24 is determined by the positioning protrusion 3 ig and the positioning hole 3 ij provided at positions spaced apart from each other. The rear slab 40 is shaped like a curved shape along the rear wheel 4 (see Fig. 5). As shown in Fig. 1, the rear fender 40 is located below the seat 3〇 and covers the rear wheel 4 from above. As shown in Fig. 5, the rear fender 40 has a rear fender 40a located behind the rear end of the seat rail 24, and a front side fender 40b between the left and right rear stays 26, 26 (see Fig. 3). Further, the front fender 40b has a plate-shaped upper surface portion 40c that is curved along the outer shape of the rear wheel 4, and side portions 40d and 4dd which are erected upward from the end surface in the width direction of the upper surface portion 4b. (Refer to Fig. 4.) Further, as shown in Fig. 4 or Fig. 5, a support surface 40e is connected to the front end of the upper surface portion 40c. A buffer 49, 49 is mounted on the support surface 40e, and the buffer 49 is attached thereto. The air cleaner 50 is disposed above the air conditioner 50. The air cleaner 50 is a box-shaped device having a substantially triangular shape on the side, (see FIG. 5), and a filter for removing dust from the outside air is disposed inside (see FIG. 5) The air cleaner 50 is disposed between the rear fender 4〇 and the seat % (see Fig. 1). In detail, the 'air filter 50 is located on the support face 40e of the rear support plate 40. The upper seat 30 has a lower side of the front floor portion 31a of the bottom plate portion 31. Further, the air filter 50 is located between the right pair of seat rails 24, 24 on the left 135684-doc -10- 200933020 ( Referring to Fig. 2). Further, a side cover panel 14 is disposed on the side of the seat rail 24 and the rear stay 26, and the air filter The cover 5 is covered by the side cover 14 from the side (refer to Fig. 1). As shown in Fig. 5, the bracket 26 is provided on the right side, and the bracket 26a extending upward is provided on the side of the air cleaner 50. A mounting portion 52 extending rearward is provided. The mounting portion 52' is fixed to the bracket 26a by bolts, for example. Further, after the left side, the stay 26 is also provided with a bracket fixed to the air cleaner 5 (not shown), the air cleaner 50 is supported on the support face 40e of the rear fender 4' by a pair of rear stays 26, 26. The second cleaner 50 has a function for taking in outside air. The suction port 5i (refer to Fig. 3 or Fig. 5). Fig. 8 is a plan view of the suction port 51, and Fig. 9 is an air cleaner 50, a rear fender 40, and a seat 3 of the IX-IX line shown in Fig. 8. As shown in Fig. 8 or Fig. 9, the suction port 51 is a rectangle that is long in the width direction of the vehicle, and is directed toward the rear of the vehicle body by the air cleaner 50 (in the directions indicated by R in Figs. 8 and 9). The air cleaner 5 is disposed such that the suction port 51 opens toward the rear of the vehicle body, and the opening direction of the suction port 51 is directed toward In the direction along the bottom plate portion 31, as shown in Fig. 9, the air cleaner 5 is disposed such that the suction port 51 opens below the inclined portion 3 1 c of the bottom plate portion 31. The front end 51 1 b of the 51 is located below the front side of the inclined portion 3 1 c. Further, an opening 50a (see FIG. 3) opening toward the front of the vehicle body is formed on the front surface 5〇b of the air cleaner 5 . The intake duct 9 is connected to the opening 50a, and the air taken in by the suction port 51 is discharged through the opening 5〇a through a filter disposed inside the air cleaner 50. 135684-doc • 11 · 200933020 On the back of the seat 30 and the rear fender 40, a plurality of wall portions 34, 35, 44, 45 standing upright from the back or upper surface are formed. These wall portions are located in front of the suction port 51 (the opening direction of the suction port 51, in the direction shown in Fig. 8 or Fig. 9*r) and the side 'and the inclined portion 3 1 c, the upper surface of the rear fender 40 The wall portions 34, 35, 44, 45 surround the suction port 51. Specifically, as shown in Fig. 8 or Fig. 9, the front wall portion 34 is formed on the bottom plate portion 31 provided on the back side of the seat 3''''''''' The front wall portion 34 is erected on the side of the air cleaner 50 (on the side of the rear fender 40), and is located in front of the suction port 51 (opening direction of the suction port 51). Further, the side wall portions 35 and 35 are formed in the bottom plate portion 31 (see FIG. 7). The side wall portions 35 and 35 are erected on the side of the air cleaner 50 (the side of the rear fender 4), and are located at the suction port 5 1 . Left and right sides. The length of the side wall portions 35, 35 is longer than the front wall portion 34, and the side wall portions 35, 35 extend downward beyond the suction port 51. The suction port 5 1 is located above the face 4〇c above the rear fender 40. Further, the upper surface portion 40c is formed with a facing wall portion 44 that stands upright from the upper surface portion 4〇c on the air cleaner 50 side (the seat 30 side). The opposing wall portion 44 is opposed to the suction port 51 at a position away from the suction port 51 toward the front. The opposing wall portion 44 extends upward until a gap is provided between the heights of the wall portions 34 disposed before the seat 3〇. Further, side wall portions 45 and 45 are formed on the upper surface portion 40c (see FIG. 4). The side wall portions 45 and 45 are also erected from the upper surface portion 4〇c on the side of the air cleaner 5 (the side of the seat 30) and are located on the side of the suction port 51. The side wall portions 45, 45 extend upward until they overlap the side wall portions 35, 35 provided on the seat 30, and a gap is also provided therebetween. 135684-doc 12 200933020 Furthermore, as shown in FIG. 4, a gap is provided between the end edges 44a, 4A of the opposite wall portion 44 and the side wall portions 45, 45, and the side wall portions 35, 35 of the seat 30 are located at the end edge 44a. 44a is between the side wall portions 45 and 45 (see Fig. 8). Further, as shown in FIG. 9, a lower side wall portion 46 is formed on the upper surface portion 4''. The lower side wall portion 46 faces the lower surface 5U of the suction port 51 and is erected by the upper surface portion 4〇c. Further, on the inclined portion 31 of the seat 30, the upper surface 51c of the suction port 51 is formed to be erected from the inclined portion 31c.
❷ 而且，座位30之傾斜部31c、前壁部34、侧壁部35、 35、上壁部36、後擋泥板4〇之上面部4〇c、相對壁部44、 側壁部45、45及下側壁部46,作為整體而構成箱狀，吸入 口 51係在此等之壁部所包圍之空間8中開口。再者，如圖8 所示，在後擋泥板40之上面部40c上形成有貫通孔牝卜 4〇f’其係用於向下方排出積存於相對壁部私、側壁部 45、45及下側壁部46内側之水滴等。 如以上說明般，摩托車丨具備：座位3〇 ;後擋泥板4〇， 其係配置於前述座位3〇之下方，且從上方覆蓋後輪4;空 氣遽清器50,其係具有在座位3G與後擋泥板4()之間開口之 吸入口 51，且淨化由該吸入口 51吸入之外部空氣後向引擎 2供給。而且，在設置於座位背面側之底板部”上，設置 有在空氣遽清器50侧直立之前壁部34及侧壁部35、35，在 後擔泥板40之上面部他上，設置有在空氣濾清㈣側直 立之相對壁部44及侧壁部45、45。又，在座位觀底板部 3!之中途位置，以後侧較前侧高之方式設置有向斜上方傾 斜之傾斜部31c’且空氣濾清器5〇以其吸入口 η開口於傾 135684sj〇c -13- 200933020 斜部3^下方之方式配置。而且，前壁部34、側壁部35、 35、相對壁部44及側壁部45、45係位於吸入口 51之前方及 侧方，與傾斜部31c及後擋泥板4〇之前述上面部4〇c 一起包 圍吸入口 51 » 根據摩托車1 ’因為係藉由壁部34、35、44 '及45包圍 吸入口 51 ’故可防止由吸入口 51浸入水滴等。此外因為 吸入口 51開口於形成在座位3〇背面之傾斜面之下方， 故可確保在吸入口 51前之大#空間s，可抑制包圍吸入口 51之壁部34、35、44、及45成為吸氣之阻礙。 此外，在摩托車1，其車體框架2〇具備於車體之前後方 向延伸之左右一對之後撐條26、26，且空氣濾清器5〇係安 裝於後撐條26、26上。而且，在設置於座位3〇背面側之底 板部31，設置有決定該座位3〇與車體框架2〇之相對位置的 定位突起31g與定位孔31j。藉此，因為空氣濾清器5〇與座 位30雙方與車體框架20之相對位置被決定，故可防止空氣 濾清器50之吸入口 51之位置與設置於座位3〇之傾斜部31c 之位置產生偏移。 再者’本發明不限於以上說明之摩托車1，可進行種種 之變更。例如，在以上之說明中，係在座位30之底板部3 J 與後撐泥板40之上面部40C之二者，形成直立於空氣濾清 器50側之壁部34、35、44、及45。但，直立於空氣濾清器 50側之壁部亦可僅設置於底板部31與上面部4〇(：中之任一 者。 【圖式簡單說明】 135684^!〇c • 14 - 200933020 圖1係本發明之實施形態之摩托車之側視圖。 圖2係上述摩托車之後部之平面圖。 圖3係上述摩托車具備之車體框架、空氣濾清器、及後 擋泥板之立體圖。 圖4係後擋泥板前部之立體圖。 圖5係座位軌條、空氣濾清器、及後擋泥板之側視圖。 圖6係圖2所示之VI-VI線之上述座位之剖面圖。 圖7係設置於上述座位背面側之底板部之底面圖。 β 圖8係上述空氣濾清器之吸入口的平面圖。 圖9係圖8所示之ΐχ-ΐχ線之空氣濾清器、後擋泥板、及 座位之剖面圖。 【主要元件符號說明】 2 3 4 ❹ 5 8 9 ^ 20 21 22 23 24 135684-doc 摩托車 引擎 前輪 後輪 前又 節流閥體 吸氣通道 車體框架 頭管 主管 下管 座位軌條 -15- 200933020 25 26 30 30a 30b 31 31c 31g ❹ 31j 32 34 35 36 40 40c 44 45 46 50 51 縱管 後撐條 座位 前部座位 後部座位 底板部 傾斜部（傾斜面） 定位突起（定位部） 定位孔（定位部） 緩衝部 前壁部 侧壁部 上壁部 後擋泥板 上面部 相對壁部 側壁部 下壁部 空氣滤清器 吸入口 135684-doc -16-Further, the inclined portion 31c of the seat 30, the front wall portion 34, the side wall portions 35, 35, the upper wall portion 36, the rear fender 4〇 upper surface portion 4〇c, the opposite wall portion 44, and the side wall portions 45, 45 The lower side wall portion 46 is formed in a box shape as a whole, and the suction port 51 is opened in the space 8 surrounded by the wall portion. Further, as shown in FIG. 8, a through hole 〇4〇f' is formed on the upper surface portion 40c of the rear fender 40 for discharging downwardly on the opposite wall portion, the side wall portions 45, 45, and Water droplets or the like inside the lower side wall portion 46. As described above, the motorcycle has: a seat 3 〇; a rear fender 4 〇 disposed under the seat 3 , and covering the rear wheel 4 from above; the air cleaner 50 having The suction port 51, which is opened between the seat 3G and the rear fender 4 (), purifies the outside air taken in by the suction port 51 and supplies it to the engine 2. Further, on the bottom plate portion provided on the back side of the seat, the wall portion 34 and the side wall portions 35 and 35 are provided before the air cleaner 50 side is erected, and the upper surface of the rear mudguard 40 is provided thereon. The opposite wall portion 44 and the side wall portions 45 and 45 which are erected on the side of the air filter (four). Further, the rear side is provided at an upper portion than the front side, and the inclined portion is inclined obliquely upward. 31c' and the air cleaner 5 is disposed such that its suction port η opens below the inclined portion 135684sj〇c -13 - 200933020. Further, the front wall portion 34, the side wall portions 35, 35, and the opposite wall portion 44 And the side wall portions 45 and 45 are located in front of and behind the suction port 51, and surround the suction port 51 together with the inclined portion 31c and the upper surface portion 4〇c of the rear fender 4〇. The wall portions 34, 35, 44' and 45 surround the suction port 51' so that water droplets or the like can be prevented from being infiltrated by the suction port 51. Further, since the suction port 51 is opened below the inclined surface formed on the back surface of the seat 3, it is ensured to be inhaled. The space s before the mouth 51 can suppress the wall portions 34, 35, 44 surrounding the suction port 51, In addition, in the motorcycle 1, the body frame 2〇 has a pair of left and right rear stays 26 and 26 extending in the front and rear directions of the vehicle body, and the air cleaner 5 is attached to the air filter 5 Further, the bottom plate portion 31 provided on the back side of the seat 3 is provided with a positioning projection 31g and a positioning hole 31j for determining the relative position of the seat 3〇 and the body frame 2〇. Since the relative positions of both the air cleaner 5 and the seat 30 and the body frame 20 are determined, the position of the suction port 51 of the air cleaner 50 and the position of the inclined portion 31c provided at the seat 3 can be prevented from being generated. Further, the present invention is not limited to the motorcycle 1 described above, and various modifications are possible. For example, in the above description, the bottom portion 3 J of the seat 30 and the face 40C above the rear slab 40 Both of them form the wall portions 34, 35, 44, and 45 standing on the side of the air cleaner 50. However, the wall portion standing on the air cleaner 50 side may be provided only on the bottom plate portion 31 and the upper surface portion 4 〇 (: any of them. [Simple description of the diagram] 135684^!〇c • 14 - 200933 Figure 1 is a side view of a motorcycle according to an embodiment of the present invention. Figure 2 is a plan view of the rear portion of the motorcycle. Figure 3 is a body frame, an air cleaner, and a rear fender of the motorcycle. Fig. 4 is a perspective view of the front part of the rear fender. Fig. 5 is a side view of the seat rail, the air cleaner, and the rear fender. Fig. 6 is the above seat of the VI-VI line shown in Fig. 2. Fig. 7 is a bottom plan view of a bottom plate portion provided on the back side of the seat. Fig. 8 is a plan view showing a suction port of the air cleaner. Figure 9 is a cross-sectional view of the air filter, rear fender, and seat of the ΐχ-ΐχ line shown in Figure 8. [Main component symbol description] 2 3 4 ❹ 5 8 9 ^ 20 21 22 23 24 135684-doc Motorcycle engine front wheel rear wheel front throttle body suction passage body frame head tube main pipe lower tube seat rail -15 - 200933020 25 26 30 30a 30b 31 31c 31g ❹ 31j 32 34 35 36 40 40c 44 45 46 50 51 Vertical tube rear stay seat front seat rear seat bottom plate inclined portion (inclined surface) positioning projection (positioning portion) positioning hole (positioning portion) buffer portion front wall portion side wall portion upper wall portion rear fender upper surface portion opposite wall portion side wall portion lower wall portion air cleaner suction port 135684-doc -16-