TW464620B - Fuel inlet seal structure in fuel tank for motorcycle - Google Patents

Fuel inlet seal structure in fuel tank for motorcycle Download PDF

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Publication number
TW464620B
TW464620B TW89110469A TW89110469A TW464620B TW 464620 B TW464620 B TW 464620B TW 89110469 A TW89110469 A TW 89110469A TW 89110469 A TW89110469 A TW 89110469A TW 464620 B TW464620 B TW 464620B
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TW
Taiwan
Prior art keywords
tank body
fuel tank
fuel
supply port
cap
Prior art date
Application number
TW89110469A
Other languages
Chinese (zh)
Inventor
Hiroyuki Niimura
Kazunori Kawame
Yoshiaki Noda
Hiroyuki Ito
Original Assignee
Honda Motor Co Ltd
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Publication date
Application filed by Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Application granted granted Critical
Publication of TW464620B publication Critical patent/TW464620B/en

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  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Closures For Containers (AREA)

Abstract

In a fuel tank for a motorcycle, including a tank body having a fuel inlet in an upper surface thereof and mounted on a vehicle frame and a cap having a breather passage and openably and closably closing the fuel inlet, with at least the circumference of the fuel inlet being covered with a cover, water is prevented from entering the tank body for increased versatility regardless of the accuracy of the relative positions of the cover surrounding the circumference of at least the fuel inlet and the tank body. An annular seal member 50 held in close contact with the entire circumferential edge of a cap 32 for sealing the outer circumference of an annular chamber defined between a tank body 31 and the cap 32 in communication with a breather passage 49 is fixed to an upper surface of the tank body 31 in surrounding relationship to a fuel inlet 35, and a communication path 52 is defined at least in the seal member 50 or between the seal member 50 and the tank body 31 for providing communication between the annular chamber 51 and the external space, and extends from the annular chamber 51 downwardly along the upper surface of the tank body 31.

Description

464620 五、發明說明(i) [發明之說明] [發明所屬之技術領域] 本發明是關於,一種上面有供油口在車體構架上所搭歲 之油箱本體,與從該油箱本體導入通氣氣體之通氣通路而 可與前述供油口可開閉自如之閉塞蓋,至少在前述供油口 的周圍以蓋子而覆蓋之二輪機車用燃料箱,特別是,供油 口之密封構造之改良。 [先前技術] 先前,相關的燃料箱有,例如,在曰本專利特開平 1 1 2682號公報等已為所知,此燃料箱是,為了安裝計量 儀器,而覆蓋在供油口周圍之蓋子,與油箱本體之間,挾 著圍在供油口的環狀之密封元件,而有蓋子裝置之通氣通 路的連通路,大約水平延伸被設置在前述密封元件上。 [發明所欲解決之問題] 上述之先前的燃料供油箱,因為在油箱本體上安裝著蓋 子,而容易高精確度作成油箱本體及蓋子的相對位置,而 可防止放置在雨中時或洗車時密封元件周圍水的浸入。然 而,也有覆蓋著車體構架而同時固定在該車體構架上之蓋 子,覆蓋油箱本體的大約全體,而燃料箱的閉塞蓋,像從 前述蓋子突出一樣,而油箱本體被車體構架搭載之自動二 輪車,像那樣的自動二輪車,適用於上述先前的密封構造 時,很難作成高精確度之油箱本體及蓋子的相等位置,放464620 V. Description of the invention (i) [Explanation of the invention] [Technical field to which the invention belongs] The present invention relates to a fuel tank body with an oil supply port on the body frame, and the introduction of ventilation from the fuel tank body The gas passage can be closed with the fuel supply port, and the fuel tank for the two-wheeled locomotive is covered with a cover at least around the fuel supply port. In particular, the sealing structure of the fuel supply port is improved. [Prior art] Previously, related fuel tanks are known, for example, in Japanese Patent Laid-Open No. 1 1 2682. This fuel tank is a cover that covers the fuel supply port for the installation of a measuring instrument. A ring-shaped sealing element surrounding the fuel supply port is held between the fuel tank body and the communication path of the ventilation path of the cover device is extended approximately horizontally on the sealing element. [Problems to be Solved by the Invention] Because the above fuel tank is equipped with a cap on the tank body, it is easy to make the relative position of the tank body and the cap with high accuracy, and it can be prevented from being sealed in the rain or when washing the car Immersion of water around the element. However, there are also covers that cover the body frame and are fixed to the body frame at the same time, covering about the entirety of the fuel tank body, and the closed cap of the fuel tank protrudes from the aforementioned cover, and the fuel tank body is carried by the body frame. A two-wheeled vehicle, such as a two-wheeled vehicle, is suitable for the above-mentioned previous sealed structure, it is difficult to make a high-accuracy equal position of the tank body and the cover, and

S9U0469.ptd 第6頁 464620 五、發明說明(2) 置在雨中時或洗車時,不能避免在密封元件的周圍的水的 浸入。在那狀況,油箱本體被冷卻或油箱本體被減壓等 時,密封元件周圍的水,經過該密封元件的連通路,而+ 有浸入油箱本體内之可能性。 本發明是鑑於上述情事所發明者,其目的是提供在二輪 機車用的燃料油箱中,至少除了在覆蓋著給油口周圍的蓋 子,與油箱本體的相對位置之精確度外,並可阻止水浸入 到油箱而泛用性高超之給油口密封構造。 [解決問題之手段] 為了達成上述目的,申請專利範園第1項所記載之發明 是,在上面具有給油口,而在車體構架上搭載之油箱本 體,與含有具從該油箱本體導入通氣氣體之通氣通路之給 油口可予以開閉自如地閉塞之閉塞蓋,至少在前述給油口 的周圍以蓋子而覆蓋之二車機車用之燃料油箱中,其特徵 為, 在前述的通氣通路,相通油箱本體與閉塞蓋之間,所形 成的環狀室的外周侧密封起來,而密接著前述蓋子的周緣 部全周之環狀的密封元件,圍著前述加油口,而固定在油 箱的上面,前述密封元件,本質上,至少列在前述密封元 件或油箱本體之間的一方,將前述環狀室相連到外部之連 通路,從前述環狀室沿著前述油箱本體的上面,而延長到 下方,而所設置之。 根據此樣的構成,因為使閉塞蓋的通氣通路,相通到環 狀室,而通到外部的連通路,從其内端開口部,隨朝著外S9U0469.ptd Page 6 464620 V. Description of the invention (2) When placed in the rain or when washing a car, it is not possible to avoid the immersion of water around the sealing element. In that situation, when the fuel tank body is cooled or the fuel tank body is decompressed, the water around the sealing element passes through the communication path of the sealing element and there is a possibility that the water will enter the tank body. The present invention has been made by the inventor in view of the above circumstances, and an object thereof is to provide a fuel tank for a two-wheeled locomotive, at least in addition to the accuracy of the relative position of the cover covering the fuel supply port and the fuel tank body, and to prevent water from entering It is widely used in fuel tanks and has a seal structure for the fuel port. [Means for Solving the Problem] In order to achieve the above-mentioned object, the invention described in the first item of the patent application garden is that the fuel tank body provided with a fuel supply port on the body frame and the vehicle body frame is equipped with a device for introducing ventilation from the fuel tank body. The fuel supply port of the gas passage can be closed and closed freely, at least in the fuel tank of the second car and the locomotive, which is covered with a cover at least around the aforementioned fuel supply port, which is characterized in that the aforementioned air passage communicates with the fuel tank. The outer peripheral side of the annular chamber formed between the body and the closure cap is sealed, and a ring-shaped sealing element that closely contacts the entire periphery of the peripheral portion of the cap is fixed on the fuel tank around the fuel filler port, and the sealing element is sealed. In essence, at least one of the rows listed between the sealing element or the tank body connects the annular chamber to an external communication path, and extends from the annular chamber along the upper side of the fuel tank body to the lower side, so that Set it up. According to this configuration, the ventilation passage of the occlusion cover is communicated to the annular chamber, and the communication passage to the outside is opened from the inner end opening to the outside.

89110469.ptd 第7頁 464620 發明說明(3) _ m部,而變成低位置,所以,放置在 的水也不會;t:的水浸密封元件周圍•,連通路 位置之精確产:到環狀室側,不管蓋子與油箱本懸的相* ^ ^可以防止水浸入到油箱本體。 二申請專利範圍第2項所記載之發明&,增加 :::利範圍第1項所記載之發明之構成,形成比讀連通 墟二他部位,還小的流通面積之小孔部,為其特徵,柄 時,目也=ί ^:依油箱本體冷卻等而發生油箱内的減壓 實阻止水從連ϊϊ連通部的外端開口部的負壓,更可以確 「政艰攸運通路,浸入到油箱内。 L發明實施的形態] 的發明的實施形態,根據附圖所示而說明本發明 托〜圖3是顯示本發明的一實施例,圖丨是速克達型縻 丄車之輛之側視圖,圖2是燃料油箱的一部切欠側视圖摩 =二圖2的”線擴大之橫剖面圖,圖4是第2密封元:之 6-6綠娘圖5^圖4的5〜5線擴大之橫剖面圖,圖6是圖2的 H 、m、大之橫剖面圖,圖7是圖2的7-7線擴大之橋~ / 圖音f8是圖2的8〜8線擴大之橫剖面圖。 g加Ρθ在圖1中,二輪機車之速克達型摩托車 2::具有:以銘合金等轉造而成形之前部Λ的車體 芊1°2 ::鑄ί Ϊ ΐ形’ I缔結在前述構架的後;:J ;與以 ^ : f以if,導管加工構成且締結在後後部車 朱I 3 ,如此所成。 1旱架1 2 g副89110469.ptd Page 7 464620 Description of the invention (3) _ m part, and it becomes a low position, so the water will not be placed; t: around the water-immersed sealing element •, the precise production of the position of the communication path: to the ring On the side of the chamber, no matter how the cover is suspended from the fuel tank, it can prevent water from entering the tank body. Second, the invention described in the second patent application scope & adds the structure of the invention described in the first scope of the patent scope: to form a small hole with a smaller circulation area than that in the second part of the communication market. Its characteristic is that when the handle is turned on, it is also ^ ^: The decompression in the fuel tank due to the cooling of the fuel tank body prevents the negative pressure of the water from the opening at the outer end of the flail communicating part, and it can also confirm the "difficulties in the difficult transportation path" , Immersed in the fuel tank. The embodiment of the invention] The embodiment of the invention will be described with reference to the drawings. Fig. 3 shows an embodiment of the present invention, and Fig. 丨 is a Sukoda car. A side view of the vehicle, FIG. 2 is a cut-away side view of a fuel tank, and a cross-sectional view of the “enlarged line” of FIG. 2 is shown, and FIG. 4 is a second seal element: 6-6 green lady figure 5 ^ 4 is an enlarged cross-sectional view of lines 5 to 5 of FIG. 4, FIG. 6 is a cross-sectional view of H, m, and Da of FIG. 2, and FIG. 7 is an enlarged bridge of line 7-7 of FIG. An enlarged cross-sectional view taken along lines 8-8. g plus Pθ In Figure 1, a two-wheeled locomotive, a speed keda motorcycle 2 :: has: the body 部 1 ° 2 :: cast ί Ϊshaped The knot is formed after the aforementioned structure; J; and ^: f and if, and the catheter is formed by processing and is connected to the rear car Zhu I 3, which is thus completed. 1 dry rack 1 2 g pair

464620 五、發明說明(4) 前部車架11是具備有:頭管部1 4 ;與從該頭管部丨4的後 下所延伸之下架部1 5 ;與從該下架部1 5的下端在後方一體 具有延伸之左右一對底板支持車架部1 6,1 6,而以铸造成· 形。而且後部車架1 2是被締結在兩底板支持車架部1 6 1 6 的後端。 前部車架11在其前端設置的頭管部1 4,被跨過前輪WF之 前叉17以可操縱方向地支撐著。前述前叉17的下端被設置 在比前輪WF的車軸18的更前方,在該前叉17的下端,一端 連接連桿19,而他端連接前述車軸18,而在前又17的上下 方向之中間部及連桿1 9的中間部之間,設有正面前緩衝 20 °又,前叉17的上端連結著操縱方向之握把21。 在後輪WR的前方側配置的引擎E,與在後輪WR的左側方 配置的無段變速機Μ,如此所成之動力裝置p,在後部車架 1 2的前後方向中間部’藉由防振連桿2 2,而搖動可能的被 支樓著。引擎Ε為,例如’汽缸向著車體前方以大約水平 配置的水冷式單氣筒4循環引擎,無段變速機μ可例如為皮 帶式者。 在動力裝置Ρ的後部後輪W R被軸支著,動力裝置ρ的後部 與後部車架1 2之間’設置著後緩衝器2 3。動力裝置ρ的後 部,安裝著在後輪WR的上部側方所設置之空氣濾清器24, 此空氣濾清器24是藉由氣化器25而接續至引擎Ε。又,從 引擎Ε導引排氣的排氣管26,延伸出在引擎Ε的後輪ffR的右 側方側,此排氣管26被接續至後輪WR的右側方所配置之排 氣滅音器27。又’腳架28被可回動自如地支撐至引擎£ a464620 V. Description of the invention (4) The front frame 11 is provided with: a head pipe portion 1 4; and a lower frame portion 15 extending from the rear of the head pipe portion 丨 4; and from the lower frame portion 1 The lower end of 5 has an extended pair of left and right floor support frames 16 and 16 at the rear, and is cast into a · shape. The rear frame 12 is attached to the rear end of the two floor support frame portions 16 6. The head frame portion 14 provided at the front end of the front frame 11 is operatively supported by a front fork 17 across the front wheel WF. The lower end of the front fork 17 is disposed more forward than the axle 18 of the front wheel WF. At the lower end of the front fork 17, one end is connected to the link 19, and the other end is connected to the axle 18. Between the middle part and the middle part of the link 19, a front front buffer 20 ° is provided, and the upper end of the front fork 17 is connected to the grip 21 in the operating direction. The engine E disposed on the front side of the rear wheel WR and the stepless transmission M disposed on the left side of the rear wheel WR. The power unit p thus formed is located at the middle portion in the front-rear direction of the rear frame 12 by The anti-vibration link 2 2 may be supported by the building. The engine E is, for example, a water-cooled single-cylinder four-cycle engine in which the cylinders are arranged approximately horizontally in front of the vehicle body, and the stepless transmission µ may be, for example, a belt type. A rear rear wheel W R of the power unit P is pivotally supported, and a rear bumper 23 is provided between the rear portion of the power unit ρ and the rear frame 12 '. At the rear of the power unit ρ, an air filter 24 provided on the upper side of the rear wheel WR is attached. The air filter 24 is connected to the engine E through a gasifier 25. In addition, an exhaust pipe 26 that guides exhaust from the engine E extends to the right side of the rear wheel ffR of the engine E. This exhaust pipe 26 is connected to the exhaust muffler arranged on the right side of the rear wheel WR.器 27。 27. Again ’the tripod 28 is supported reversibly to the engine. A

89110469.ptd 第9頁 464620 五、發明說明(5) -----一>__ 在後部車架1 2的中間部上 及氣化器25的上方,而可收…,支持著配置在前述引擎E 上面被支樓著燃料油箱3〇C的收容箱29,副架13 車體構架F是被合成樹脂製的 覆蓋駕駛者的腳前方之檔腿 4盍者,此蓋子34是 而連接在檔腿部34a的下部之^以為了擺駕駛者的腳 34b的下方而與檔腿部34a與腳踏板34b連接的下蓋34c,與 腳踏板34b及下蓋34e相連從兩側覆蓋車體後部的側蓋34 了 上述側蓋34d覆蓋著’後部構架12所支持的收容箱則 大部份,與副架1 3上面所支持的油箱本體3丨,從上方覆蓋 著收容箱29的座位部33,開關自在的安裝在側蓋34d的上@ 部。又,燃料油箱30所設置的燃料加入用的油蓋32是從側 蓋3 4d的上部配置在上方之突出部。 在圖2中,油箱本體3 1是由下部油箱半體3丨a與上部之油 箱半體31 b互相結合而成,在上部之油箱半體3 1 b的前部上 面有給油口 3 5被開口 ’在此給油口 3 5的後方側,上部油箱 半體31 b的上面,形成向後方變低之傾斜面3 6。 將圖3併在一起參照’油盍3 2是可以將前述給油口 3 5開 閉可能地閉塞並具備有:合成樹脂製的蓋帽主體3 7,與該 蓋帽主體3 7的外端被重疊的合成樹脂製的蓋元件3 8,與維 持使該蓋元件38重疊蓋帽主體37而覆蓋著蓋元件38及蓋帽 主體37之金屬製的保護元件39。 蓋帽主體37具備有:圓管部37a,與從該圓管部37a的-外 端之半徑方向外方所突出的鍔部37b成為一體,蓋元件89110469.ptd Page 9 464620 V. Description of the invention (5) ------> On the middle part of the rear frame 12 and above the gasifier 25, it can be retracted. The engine E is supported by a storage box 29, a fuel tank 30C, and a sub-frame 13. The body frame F is a synthetic resin covering the front legs of the driver's feet. This cover 34 is connected to A lower cover 34c connected to the legrest 34a and the footrest 34b to swing the driver's foot 34b under the lower leg 34a is connected to the footrest 34b and the lower cover 34e to cover from both sides The side cover 34 at the rear of the vehicle body covers most of the storage boxes supported by the rear frame 12 and the side cover 34d. The fuel tank body 3 丨 supported by the sub-frame 13 and the storage box 29 is covered from above. The seat portion 33 is freely attached to the upper portion of the side cover 34d. The fuel cap 32 provided in the fuel tank 30 is a projecting portion which is disposed above the side cover 34d from above. In FIG. 2, the fuel tank body 31 is formed by combining the lower fuel tank half 3a and the upper fuel tank half 31b with each other. On the upper part of the upper fuel tank half 3 1b, there is a fuel supply port 35. The opening 'is formed on the rear side of the fuel inlet 3 5 and the upper surface of the upper tank half 31 b to form an inclined surface 36 which is lowered to the rear. Referring to FIG. 3 together, referring to “oil pan 3 2”, it is possible to close and open the oil supply port 3 5 and possibly include a synthetic resin cap main body 3 7 and an outer end of the cap main body 37 being overlapped. The cover member 38 made of resin and the metal protective member 39 made of the cover member 38 and the cap body 37 are overlapped with the cover member 38 so as to cover the cover member 38 and the cap body 37. The cap body 37 is provided with a round pipe portion 37a, which is integrated with a crotch portion 37b protruding outward from the radial direction of the -outer end of the round pipe portion 37a, and a cover element

89110469.ptd 第10頁 464620 五、發明說明(6) —-- ^在圓管部37a的外端重疊在—起。χ,保護元件39是從 盍凡件38側覆蓋該蓋元件38與蓋帽主體37而形成盤子形 狀,保護元件39的開口端周緣部與前述鍔部37b的周緣部. 結合在一起。 在蓋帽主體37中之圓管部37a是,依未圖示之鑰匙操作 而作可回動操作,内缸40可回動地被收容被此内缸4〇繫合 的左右一對的滑件41----是在前述内缸40的軸線之直交方 向可滑動而配置在前述圓管部37a上。然《,内虹4〇與滑 件41.....構成鎖機構4 2,以鑰匙使内缸4 0操作回動時, 由於前述滑件41....滑動之動作,這些滑件41_ ...與油箱 本體3 1繫合而是鎖起來的狀態,可以轉變解除滑件^ /相 與油箱本體3 1繫合之未鎖之狀態。 ,’ ’ · · 在盍帽主體37的鍔部37b上,保持有環狀的第一密封元 件43的外周部,此第i密封元件43是在油蓋32關閉哈油口 35時,接觸給油口35的周緣部。而且,圓管部3以與第!密 封元件43之間設有,接觸給油口35的周緣部方向對第! 封元件43附勢之彈簧44。 又,蓋帽主體37的圓筒部37a與蓋元件38之間所形成之 通氣孔室45 *在比前述第1密封元件43更内側,盥在前述 圓管部37a的外面開口的通路46之間,設有使油箱本體31 内的燃氣各別少量的放出到通氣孔室45,同時按照,、由A箱本 體31内的壓力增大而開閥的第1閥4?。又,圓筒部;設 有’使通氣孔室45内的氣液分離可只有使燃料油返回 $ 箱本體31之第2閥48。 189110469.ptd Page 10 464620 V. Description of the invention (6) --- ^ overlapped at the outer end of the round pipe portion 37a. χ, the protection element 39 is formed into a plate shape from the side of the cover member 38 covering the cover element 38 and the cap body 37, and the peripheral edge portion of the open end of the protection element 39 is combined with the peripheral edge portion of the aforementioned crotch portion 37b. The round tube portion 37a in the cap body 37 is a reversible operation by a key operation (not shown), and the inner cylinder 40 is reversibly accommodated by a pair of left and right sliders that are engaged by the inner cylinder 40. 41 ---- is slidable in the orthogonal direction of the axis of the inner cylinder 40 and is arranged on the round pipe portion 37a. However, "the inner rainbow 40 and the slider 41 ..... constitute the lock mechanism 42, and when the inner cylinder 40 is operated with the key to return, the slide 41 .... 41_ ... it is locked with the fuel tank body 31, and it can be changed to unlock the slider ^ / phase and unlocked with the fuel tank body 31. "'· · The outer peripheral portion of the ring-shaped first sealing element 43 is held on the crotch portion 37 b of the cap body 37. The i-th sealing element 43 is in contact with the oil when the oil cap 32 closes the oil port 35. The peripheral part of the mouth 35. Moreover, the round tube portion 3 is the same as the first! The seal elements 43 are provided between them, and the peripheral edge portion contacting the oil supply port 35 faces the first! The sealing element 43 is attached to a spring 44. The vent hole chamber 45 formed between the cylindrical portion 37a of the cap main body 37 and the cover member 38 is located inward of the first sealing member 43 and is placed between the passages 46 opened outside the circular pipe portion 37a. A first valve 4 is provided to allow a small amount of gas in the fuel tank body 31 to be discharged into the vent hole chamber 45 at the same time. The first valve 4 is opened when the pressure in the A tank body 31 increases. In addition, the cylindrical portion is provided with a second valve 48 for returning the fuel oil to the tank body 31 so as to separate the gas from the liquid in the vent hole chamber 45. 1

89110469.ptd 第11頁 464620 五、發明說明(7) 在蓋帽3 7上設有,使内姓硅 49,此通氣通路49的外端,此^;、’、通氣孔室45之通氣通路 本體31的接觸部的更外方側,:$第1密封元件‘3的油箱 在油箱*體31的上面;|著^部抓的外周部開口。· 密封元件5 0 ’可藉例如,以譬二=、_'α ^由口 一樣的環狀第2 5 0密接在、、ώ茧S ?中伴嗜 雙面膠帶黏著’第2密封元件 bU在接在油盍32中保濩元件3g 箱本體31與油蓋32之間,以第卜L以王周。由此,油 同時以第2密封元件5。密封外=封元件43密封内周側, 通氣通路49的外端該環狀室51呈開口而狀形成環狀室51,在 在圖4與圖5中,第2密Men ^ .Λίί,Λ j 封7^件50 —體具備有:環狀的密封 主部5 0 a,和該岔封主部5 〇 a的向闽如、土 > t ^ a的内周部連接的肋部50b,與 攸密封主體50a的周方向之一 # a才π 1^ 處向丰徑方向處方延伸的延 伸部50c,延伸部…已沿著油箱本體31的上面的傾斜面36 而形成。而且’使前述延伸部50,,&著前述傾斜面36, 在油耘本體31上面,固著第2密封元件5〇的肋部5〇b,在油 蓋32中,彈性的密接保護元件39的開口緣部全周。 將圖6〜圖8併合一起參照,在對應前述延伸部5 〇 c的部 份,第2密封元件50與油箱本體3丨的上面之間,與第2密封 元件的延伸部5 0 c上,使環狀室5 1通到外部之連通部5 2, 例如,可設成橫斷面形狀為矩形,此連通路5 〇,因為延伸 部5 0 c沿著油箱本體3 1的上面之傾斜面3 6,因此從環狀室 5 ],沿著油箱本體31的上面,延伸到下方而形成之。 又’連通路52的偏内端部份’被形成比該連通路52的其 他部位還小的流通面積之孔口部5 2 a。89110469.ptd Page 11 464620 V. Description of the invention (7) The cap 37 is provided with an inner surname of silicon 49, the outer end of the ventilation passage 49, and ^ ;, '', the ventilation passage body of the ventilation hole chamber 45 On the outer side of the contact portion of 31, the fuel tank of the first sealing element '3 is on the upper surface of the fuel tank body 31; the outer peripheral portion of the catching portion is opened. · The sealing element 5 0 ′ can be adhered to, for example, the second ring 2 5 0 with a mouth-like annular shape, such as, for example, the second sealing element bU. Between the tank main body 31 and the oil cap 32 connected to the oil retaining element 3g in the oil pan 32, the dimple L is the king. Thereby, the oil seals the second sealing element 5 at the same time. Sealed outer = sealed element 43 seals the inner peripheral side. The outer end of the air passage 49 forms the annular chamber 51 in an open shape to form the annular chamber 51. In FIGS. 4 and 5, the second dense Men ^ .Λίί, Λ j 封 7 ^ 件 50 — The body is provided with a ring-shaped seal main portion 50a, and a rib portion 50b connected to the inner peripheral portion of the branch seal main portion 50a toward Min Ru, Tu > t ^ a The extension 50c, which is one of the circumferential directions of the main body 50a, extends in the direction of the diameter in the direction # 1, and the extension ... has been formed along the inclined surface 36 of the upper surface of the tank body 31. In addition, the above-mentioned extension portion 50 'is attached to the inclined surface 36, and the rib portion 50b of the second sealing element 50 is fixed on the oil main body 31, and the oil cap 32 is elastically tightly attached to the protection element. The opening edge of 39 is all around. Referring to FIG. 6 to FIG. 8 together, in a portion corresponding to the aforementioned extension portion 50 c, between the second seal element 50 and the upper surface of the fuel tank body 3, and the extension portion 50 c of the second seal element, The ring-shaped chamber 51 is opened to the external communication portion 52. For example, the cross-sectional shape may be rectangular, and this communication path 50 is formed because the extension portion 50c follows the inclined surface of the upper surface of the tank body 31. 36, so it is formed from the annular chamber 5] along the top of the tank body 31 to the bottom. Also, the "inner end portion of the communication path 52" is formed with an orifice portion 5 2 a having a smaller flow area than the other portions of the communication path 52.

1^· 89110409.ptd 第12頁 ^-6 4 62 0 五、發明說明(8) 路广9:通i = 例之作’具有油蓋32的通氣通 外周側,將蓋32之間所形成之環狀室51的 油口 35,而被的環狀之第2密封元件50,圍著給 通到^之連^t與油箱本體31之間是使環狀室51相 面而Ζ環狀室51,沿著油箱本體31的上 _的環狀室51,:二置心^到油蓋32的通氣 口部,向著外",。2 連 從其内端的開 或洗車時,從低位置,所以放置在雨中時 周圍時,連通Π 入到第2密封元件50的 蓋子34盘油箱本體31^不會上升到環狀室51側,不管 ”油相本體31的相對位置的精確度如何,也 係不二ί;::ίΓ’對蓋子34及油箱本體31的相對關 ,多數種機種之二輪機車均可適用。 位還小的Ϊ 3 :5』上’因為形成比該連通路52的其他之部 的机通面積之孔口部52a,所以 ===本㈣内減壓時,連通爾外:二 到油箱而可以更加確實阻止水從連機浸入 於:詳細說明本發明之實施例,但本發明並不限定 範圍,ϊ 2 ’本發明在不脫離申請專利範圍所記載之 ^m其可作種種的設計變更。 柯々 體3 1 = ί上述之實施例中,雖已說明其可適用於將油箱本 、大約全體以蓋子34覆蓋起來之二輪機車,但本發明 89)10409.ptd 第13頁 4 6 4 6 2 0 五、發明說明¢9). 亦可例如適用於日本專利特開平7 - 1 1 2 6 8號公報等所揭示_ 之只有在給油口附近以蓋子覆蓋起來的類型之二輪機車用 之燃料油箱。 [發明之效果] 如上,根據申請專利範圍第1項所記載之本發明,不管 蓋子與油箱本體的相對位置之精確度如何,其均可阻止水 浸入到油箱本體。又,其亦可適用於蓋子及油箱本體不同 的相對關係之多數種機種之二輪機車。 又,根據如申請專利範圍第2項所記載之本發明,其可 更加確實的阻止水從連通路浸入到油箱本體。 [元件編號之說明] 11 前部車架 12 後部車架 13 副架 14 頭管部 15 下架部 16 底板支持車架部 17 前叉 18 車軸 19 連桿 20 前緩衝器 21 握把 22 防振連桿 23 緩衝器1 ^ · 89110409.ptd Page 12 ^ -6 4 62 0 V. Description of the invention (8) Lu Guang 9: Tong i = as an example 'Ventilation vent with oil cap 32 on the outer peripheral side, formed between the caps 32 The ring-shaped chamber 51 has an oil port 35, and a ring-shaped second sealing element 50 surrounds the connection between the connection ^ t and the fuel tank body 31 so that the ring-shaped chamber 51 faces the Z-ring. The chamber 51, an annular chamber 51 along the upper side of the fuel tank body 31, is located at the center of the air vent opening of the oil cap 32 and faces outward. 2 When driving or washing the car from its inner end, it is in a low position, so when it is placed around in the rain, it connects to the cover 34 of the second sealing element 50, and the pan body 31 ^ does not rise to the side of the annular chamber 51. Regardless of the accuracy of the relative position of the "oil phase body 31", it is also the same; "::" is relatively close to the cover 34 and the fuel tank body 31, and two-wheeled locomotives of most types can be used. "3: 5" on the top, because the opening portion 52a is formed than the mechanical area of the other parts of the communication path 52, so when the pressure is reduced in this area, it is connected to the outside: two to the fuel tank, it can be more surely blocked Water immersed in the machine: The embodiments of the present invention will be described in detail, but the scope of the present invention is not limited. Ϊ 2 'The present invention can make various design changes without departing from the ^ m described in the scope of the patent application. 柯 々 体3 1 = In the above embodiment, although it has been described that it is applicable to a two-wheeled locomotive that covers the fuel tank and approximately the whole with a cover 34, the present invention 89) 10409.ptd Page 13 4 6 4 6 2 0 5 、 Invention Note ¢ 9). It can also be applied to Japanese Patent Laid-Open No. 7- 1 1 2 6 and other publications _ only provide fuel tanks for two-wheeled locomotives of the type covered with a lid near the fuel filler port. [Effects of the Invention] As described above, the present invention described in item 1 of the scope of the patent application Regardless of the accuracy of the relative position of the lid and the fuel tank body, it can prevent water from penetrating into the fuel tank body. It can also be applied to two-wheeled locomotives of most types of vehicles with different relative relations between the lid and the fuel tank body. Also, according to According to the present invention described in the second patent application scope, it can more reliably prevent water from entering the tank body from the communication path. [Explanation of the component number] 11 Front frame 12 Rear frame 13 Sub frame 14 Head tube part 15 Undercarriage part 16 Floor support frame part 17 Fork 18 Axle 19 Link 20 Front bumper 21 Grip 22 Anti-vibration link 23 Shock absorber

891】0469.ptd 第14頁 4.6 4 620 五、發明說明(ίο) 24 空氣濾清器 25 氣化器 26 排氣管 27 排氣滅音器 28 腳架 29 收容箱 30 燃料油箱 31 油箱本體 31a 下部油箱車體 31b 上部油箱車體 3 2 油蓋 33 座位部 34 蓋子 34a 檔腿部 34b 腳踏板 34c 下蓋 34d 側蓋 35 給油口 3 6 傾斜面 37 蓋帽主體 37a 圓筒部 37b 鍔部 38 蓋元件 39 保護元件891] 0469.ptd Page 14 4.6 4 620 V. Description of the invention 24 Air filter 25 Vaporizer 26 Exhaust pipe 27 Exhaust muffler 28 Tripod 29 Storage box 30 Fuel tank 31 Fuel tank body 31a Lower fuel tank body 31b Upper fuel tank body 3 2 Oil cap 33 Seat portion 34 Cover 34a Leg portion 34b Foot pedal 34c Lower cover 34d Side cover 35 Fuel inlet 3 6 Inclined surface 37 Cap main body 37a Cylinder portion 37b Crotch portion 38 Cover element 39 Protective element

89110469.ptd 第15頁 46462089110469.ptd Page 15 464620

89110469.ptd 第16頁 464620 圖式簡單說明 圖1為速克達摩托車車輛之侧視圖。 圖2為燃料箱之一部切欠側視圖。 圖3為圖2的3 - 3線之擴大剖面圖。 圖4為第2密封元件之頂視平面圖。 圖5為圖4之5 - 5線剖面圖。 圖6為圖2之6 - 6線擴大剖面圖。 圖7為圖2之7-7線擴大剖面圖。 圖8為圖2之8-8線擴大剖面圖。89110469.ptd Page 16 464620 Brief Description of Drawings Figure 1 is a side view of a motorcycle. Fig. 2 is a cut-out side view of a portion of a fuel tank. FIG. 3 is an enlarged sectional view taken along line 3-3 in FIG. 2. Fig. 4 is a top plan view of the second sealing element. Fig. 5 is a sectional view taken along the line 5-5 in Fig. 4; Fig. 6 is an enlarged sectional view taken along line 6-6 in Fig. 2. FIG. 7 is an enlarged sectional view taken along line 7-7 in FIG. 2. FIG. 8 is an enlarged sectional view taken along line 8-8 in FIG. 2.

89]10469.ptd 第17頁89] 10469.ptd Page 17

Claims (1)

464620 六、申請專利範圍 二機車用燃料油箱之供油口密封㈣,其含有 、-。油口(35)在上面,而被車體構架(F)搭載之油箱本體 (3J:,肖具有從該油箱本體⑶)導入通氣撫氣之通氣通路 (49)而可對前述給油口(35)可開閉自如之油蓋(32),至少 在前述給油口(35)的周圍以蓋子而覆蓋之二輪機車用之姆 料油箱中,其特徵為:相通至在前述的通氣通路(49)的油 箱本體(31)與油蓋(32)之間所形成的環狀室(5ί)的外周側 被密封起來,而密接著前述油蓋(32)的周緣部全周之環狀 的费封元件(5 0 )’圍繞著前述給油口( 3 5 )而固著在油箱本 體(31)的上面,在前述密封元件本身以及至少前述密 封元件(5 0 )與油相本體(3 1)之間的一方,前述環狀室(5 1) 相連到外部的連通部(5 2 ),從前述環狀室(5 1)起沿著前述 油箱本體(3 1 )的上面而延伸到下方,如此所設置而成。 2.如申請專利範圍第1項所記載之二輪機車用燃料油箱 之供油口密封構造’其中:在前述連通路上形成比該 連通路(5 2)的其他之部位之流通面積為小的孔口部 (52a)。464620 VI. Scope of patent application 2. The fuel supply port of the locomotive fuel tank is sealed. It contains,-. The fuel port (35) is on the top, and the fuel tank body (3J :, Xiao has a ventilation passage (49) introduced from the fuel tank body (3)) provided by the vehicle body frame (F), and the fuel supply port (35) The oil cap (32) which can be opened and closed freely, at least in the fuel tank of the two-wheeled locomotive covered with a cover at least around the aforementioned oil supply port (35), is characterized in that it communicates with the air passage (49) in the aforementioned air passage (49). The outer peripheral side of the annular chamber (5ί) formed between the fuel tank body (31) and the oil cap (32) is sealed, and a ring-shaped ferrous sealing element (5) closely adjoining the entire periphery of the peripheral portion of the oil cap (32). 0) 'is fixed around the oil supply port (3 5) on the tank body (31), and between the sealing element itself and at least one of the sealing element (50) and the oil phase body (31) The above-mentioned annular chamber (5 1) is connected to the external communication portion (5 2), and extends from the above-mentioned annular chamber (5 1) along the upper side of the fuel tank body (3 1) to the lower side. to make. 2. The fuel supply port sealing structure of the fuel tank for the two-wheeled locomotive described in item 1 of the scope of the patent application, wherein a hole with a smaller flow area than the other parts of the communication path (5 2) is formed in the communication path. Mouth (52a). 89110469.ptd 第18頁89110469.ptd Page 18
TW89110469A 1999-06-07 2000-05-30 Fuel inlet seal structure in fuel tank for motorcycle TW464620B (en)

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CN100462275C (en) * 2004-02-27 2009-02-18 雅马哈发动机株式会社 Oiling structure of lightweight pedal motorcycle
CN1840415B (en) * 2005-03-28 2010-07-21 光阳工业股份有限公司 Multiple loop of aeration pipe outside the oil tank lock
US20080000906A1 (en) * 2006-06-30 2008-01-03 Tony Nicosia Flush-mount fuel cap with valve
ITMC20060150A1 (en) * 2006-11-13 2008-05-14 So Ge Mi Spa OPENING AND CLOSING DEVICE FOR DOORS.
JP6255608B2 (en) * 2014-07-04 2018-01-10 本田技研工業株式会社 Fuel tank structure for saddle riding type vehicles
JP6457863B2 (en) * 2015-03-30 2019-01-23 本田技研工業株式会社 Fuel cap for fuel tank
US11498635B2 (en) * 2017-09-14 2022-11-15 Honda Motor Co., Ltd. Fuel tank structure
JP7027900B2 (en) * 2018-01-17 2022-03-02 トヨタ自動車株式会社 Receptacle caps and vehicles
JP7150146B2 (en) * 2019-03-29 2022-10-07 本田技研工業株式会社 saddle-riding vehicle

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US5524786A (en) * 1994-12-27 1996-06-11 Ford Motor Company Body conforming fuel tank cap latch mechanism
JP3556330B2 (en) * 1995-07-12 2004-08-18 スズキ株式会社 Vehicle fuel tank cap device
JP3370889B2 (en) * 1997-02-27 2003-01-27 本田技研工業株式会社 Tank cap mounting structure for fuel tank

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ITTO20000530A0 (en) 2000-06-05
IT1320396B1 (en) 2003-11-26

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