1231284 玖、發明說明： 【發明所屬之技術領域】 本發明係關於機車之燃料蓋裝置的改進，在該裝 在覆蓋支承於車架上之燃料箱的車身罩上，開設上 箱的供油口所面對之供油窗，該燃料蓋裝置具有實 油窗之開閉的燃料蓋和將該燃料蓋鎖定於其關閉位 定機構。 【先前技術】 在現有的機車之燃料蓋裝置中，例如，如專利文 公開的那樣，在合成樹脂製的燃料蓋與合成樹脂製 罩直接鉸接的同時，在該燃料蓋與車身罩之間，構 機構。 [專利文獻1 ] 曰本實用新型登記第2，5 3 6，6 2 2號公報。 【發明内容】 (發明所欲解決之問題） 在上述機車之燃料蓋裝置中，為了防止因惡作劇 料蓋打開，必須充分地確保鉸接件和鎖定機構之支 剛性。於是，在現有的上述燃料蓋裝置中，為了確 承部的剛性，將合成樹脂製的車身罩和燃料蓋的厚 為較大值，但是，這些構件成型為較大厚度會導致 加及成本增加。 本發明是針對上述情況而提出的，本發明的目的 供上述機車之燃料蓋裝置，即使在不以特別大的厚 312/發明說明書(補件)/92-11/92123563 置中， 述燃料 現該供 置的鎖 獻1所 的車身 成鎖定 而將燃 承部的 保該支 度設定 重量增 在於提 度形成 1231284 車身罩和燃料蓋之情況下，仍可充分地確保鉸接件和鎖定 機構之支承部的剛性，可防止因惡作劇而將燃料蓋打開。 (解決問題手段） 為了實現上述目的，本發明為一種機車之燃料蓋裝置， 在覆蓋支承於車架上的燃料箱之車身罩上，開設上述燃料 箱的供油口所面對的供油窗，具有實現該供油窗的開閉之 燃料蓋和將該燃料蓋鎖定於其關閉位置之鎖定機構，其第 1特徵在於，該燃料蓋的内面與增強其剛性的增強構件結 合，該增強構件以可開閉的方式樞軸支承於車架上，與此 同時，在該增強構件和車架之間形成上述鎖定機構。 根據該第1特徵，由於其剛性通過增強構件增強的燃料 蓋即使在受到外力之情況下，仍可將變形抑制在較小程 度，另外，上述增強構件和鎖定機構牢固地支承於車架側， 車身罩與該支承完全無關，故即使在車身罩因惡作劇而變 形之情況下，仍可利用燃料蓋正常地繼續覆蓋油箱蓋，從 而防止油箱蓋的打開。按照上述方式，可減小車身罩和燃 料蓋的厚度，可減輕重量和降低成本。 另外，除第1特徵之外，本發明的第2特徵在於，上述 燃料蓋由合成樹脂製成，固定於其上之上述增強構件與固 定於車架上的高剛性之台座的一端部鉸接，與此同時，在 該台座的另一端部與增強構件之間形成上述鎖定機構。 根據該第2特徵，可在固定於車架上的共用之台座上， 裝配燃料蓋和鎖定機構，構成燃料蓋裝置裝配件，可提高 裝配性。 3Π/發明說明書(補件)/92-11/92123563 1231284 而且，除第1或第2特徵之外，本發明的第3特徵在於， 上述燃料箱設置成其底部位於小型機車的踏腳板之下方， 在上述踏腳板的中間部，設置開設有上述供油窗的車身罩。 根據該第3特徵，可通過將燃料箱設置於踏腳板的下 方，來降低機車的重心，而且，即使在使用者腳踏車身罩、 燃料蓋之情況下，仍可防止燃料蓋無效的打開。 【實施方式】 下面根據附圖所示之本發明的一實施例，對本發明的實 施形態進行描述。 圖1為具有本發明之燃料蓋裝置的機車之側視圖，圖2 為沿圖1中的箭頭2之箭視放大圖，圖3為沿圖2中的3 - 3 線所作之剖面圖，圖4為沿圖3中的4 - 4線所作之剖面圖， 圖5為沿圖4中的5 - 5線所作之剖面圖，圖6為燃料蓋的 打開狀態與圖3相對應之示意圖，圖7為沿圖6中的7-7 線所作之剖面圖。 另外，在以下說明中，前後、左右是以機車S為基準而 言 ° 首先，在圖1和圖2中，小型機車S的車架1由車頭管 1 h，主車架1 m和U形的左右一對的側車架1 s、1 s構成， 該車頭管lh以可轉向的方式支承前叉9，該主車架lm從 該車頭管1 h的底端部，向後方延伸，從中間部，向後端部， 分成二股狀，該側車架1 s、1 s的前後兩端部焊接於車頭管 1 h的底端部側面和主車架1 m的中間部側面上，在主車架 1 m的下方迂迴；在左右的側車架1 s、1 s上，安裝有燃料 8 312/發明說明書(補件)/92-11/92123563 1231284 箱2，和在該燃料箱2的左右兩側伸出的一對踏腳板3、3 ; 在這兩個踏腳板3、3之間，連接有由合成樹脂製成的車身 罩4，該車身罩4呈隧道狀，覆蓋主車架1 m的前部和燃料 箱2。此時，為了降低機車S的重心，燃料箱2設置成其 底部位於踏腳板3、3的下方。 擰有油箱蓋5、燃料箱2之筒狀的供油口 6，避開主車 架1 m而設置於燃料箱2的頂面之一側部，在上述車身罩4 上開設朝向該供油口 6開口的供油窗7，在該供油窗7上， 設置有使其開閉的、由合成樹脂製成的燃料蓋8。 如圖3〜圖5所示，在上述燃料蓋8的内面，成一體地 形成有多個凸部8 a、8 a，增強燃料蓋8的鋼板製的增強構 件1 0通過小螺釘1 1、1 1與這些凸部8 a、8 a結合。 通過將安裝座1 2焊接在主車架1 m的一側面上而結合成 一體，利用多個螺栓1 4、1 4和螺母1 5、1 5將由鋼板製成 的、具有較高之剛性的台座1 3固定在該安裝座1 2上。該 螺母1 5、1 5為預先焊接於安裝座1 2上的焊接螺母。 該台座1 3，在上述供油口 6的一側方，具有以將其前後 夾持的方式彎曲之前端部1 3 a和後端部1 3 b，在其前端部 1 3 a，安裝有鉸接軸1 6，與上述增強構件1 0的一端部連接 成一體的鉸接臂1 7以可自由轉動的方式支承在該鉸接轴 1 6上，該鉸接臂1 7繞鉸接軸1 6而轉動，由此，燃料蓋8 可在將供油窗7鎖閉的關閉位置C (參照圖3和圖4 )，與將 供油窗7打開的打開位置0 (參照圖6和圖7 )之間轉動。在 鉸接軸1 6上，安裝有打開彈簧1 8，該打開彈簧1 8將鉸接 9 3Π/發明說明書(補件)/92-11/92123563 1231284 臂1 7朝向燃料蓋8的打開方向加力，且由扭轉螺旋彈簧構 成。 另外，在上述增強構件1 0的另一端部，固定有向下方 突出的呈字形的插銷2 0，插銷扣件2 1的底板2 2通過多 個螺栓2 3、2 3固定於台座1 3的後端部1 3 b上，該插銷扣 件2 1與該插銷2 0 —起，將燃料蓋8鎖定於關閉位置C。 鎖定機構1 9由該插銷2 0和插銷扣件2 1構成。 插銷扣件2 1為先前所習知的，其包括具有可容納插銷 20的U形槽25的上述底板22，和以可轉動的方式樞軸支 承於底板2 2上、與上述U形槽2 5 —起來保持插銷2 0的鎖 定爪構件2 6 ;在沿保持插銷2 0的鎖定方向，將該鎖定爪 構件2 6加彈壓力的同時，與操作繩2 7連接，通過該操作 繩2 7的牵引，可沿使插銷2 0脫開的方向轉動。該操作繩 2 7與由引擎鍵驅動的組合開關（未圖示）連動，當將該開關 操作到設定的燃料蓋之打開位置時，對操作繩2 7進行牽 引。 另外，燃料蓋裝置裝配件2 8由台座1 3、安裝於其上的 燃料盖8以及鎖定機構1 9構成’在裝配該裝配件2 8後’ 該台座13固定於安裝座12上。 上述增強構件1 0的結構為：在將燃料蓋8保持在關閉 位置C時，與油箱蓋5的頂面面對，通過其本身，約束油 箱蓋5的打開。於是，即使在燃料蓋8萬一破損的情況下， 仍可阻止因惡作劇而將油箱蓋5打開。 再者，在圖中，元件符號2 9為安裝於燃料箱2的供油 10 312/發明說明補件)/92-11/92123563 1231284 口 6之頸部的燃料接收盤，在供油過程中，接收從供油口 6洩漏的燃料，將其排到未圖示的排出管。 下面對該實施例的作用進行描述。 在向燃料箱2供油時，首先，通過引擎鍵，將組合開關 操作到設定的燃料蓋之打開位置，牽引操作繩2 7，將鎖定 爪構件2 6轉動到打開位置時，由於插銷2 0脫開，故如圖 6和圖7所示，燃料蓋8有著打開彈簧1 8的彈壓力而朝向 上方轉動，從而可將供油窗7打開。於是，若將油箱蓋5 從供油口 6上拆下，則可通過供油窗7，從供油口 6向燃 料箱2進行供油。 若在供油後，將油箱蓋5置於供油口 6處，使燃料蓋8 抵抗打開彈簧1 8的彈壓力而如圖3和圖4所示那樣關閉， 則插銷2 0在被容納於插銷扣件2 1的底板2 2之U形槽2 5 内的同時，通過鎖定爪構件2 6進行保持，處於鎖定狀態。 但是，由於由合成樹脂製成的燃料蓋8通過固定於其内 面的增強構件1 0而使其剛性得到增強，故即使在例如受到 使用者腳踏等的外力之情況下，仍可將變形抑制在較小程 度。而且，在與上述增強構件1 0連接為一體的鉸接件臂 17與固定於主車架lm上的高剛性之台座13鉸接的同時， 在上述台座1 3和增強構件1 0之間形成鎖定機構1 9，由 此，具有供油窗7的車身罩4與燃料蓋8和鎖定機構1 9 的支承完全無關，於是，由於即使由於例如惡作劇或使用 者腳踏的作用而使車身罩4發生變形，仍可防止燃料蓋8 無效的打開，故可利用燃料蓋8適當地繼續對油箱蓋5進 11 312/發明說明書(補件)/92-11/92123563 1231284 行覆蓋，防止油箱蓋5的 4和燃料蓋8的厚度，可 本發明不限於上述的實 範圍内，對各種設計進行 (發明效果） 如上所述，根據本發明 之燃料蓋裝置，在覆蓋支 上，開設上述燃料箱之供 該供油窗的開閉之燃料蓋 之鎖定機構，燃料蓋的内 合，在該增強構件以可開 時，在該增強構件和車架 剛性通過增強構件而增強 下，仍將變形抑制在較小 定機構牢固地支承於車架 故即使在車身罩因惡作劇 蓋，正常地繼續覆蓋油箱 可減小車身罩和燃料蓋的 另外，根據本發明的第 燃料蓋由合成樹脂製成， 車架上的高剛性之台座的 座的另一端部與增強構件 固定於車架上的共用之台 構成燃料蓋裝置裝配件， 打開。其結果是，可減小車身罩 有助於減小重量和成本。 施例，可在不脫離其實質内容的 變更。 的第1特徵，本發明為一種機車 承於車架上的燃料箱之車身罩 油口所面對的供油窗，具有實現 和將該燃料蓋鎖定於其關閉位置 面與增強其剛性的增強構件結 閉的方式樞軸支承於車架上之同 之間形成上述鎖定機構，由於其 的燃料蓋即使在受到外力之情況 程度，另外，上述增強構件和鎖 側，該支承與車身罩完全無關， 而變形之情況下，仍可利用燃料 蓋，防止油箱蓋的打開。由此， 厚度，可減小重量和降低成本。 2特徵，除在第1特徵外，上述 固定於其上的增強構件與固定於 一端部鉸接，與此同時，在該台 之間形成上述鎖定機構，故可在 座上，裝配燃料蓋和鎖定機構， 從而可提高裝配性。 3U/發明說明書(補件)/92-11/92123563 12 1231284 此外，根據本發明的第3特徵，除第1或第2特徵外， 上述燃料箱設置成其底部位於小型機車的踏腳板之下方， 在上述踏腳板的中間部，設置開設有上述供油窗的車身 罩，由此，可通過將燃料箱設置於踏腳板的下方來降低機 車的重心，進而，即使在使用者腳踏車身罩或燃料蓋之情 況下，仍可防止燃料蓋無效的打開。 【圖式簡單說明】 圖1為具有本發明之燃料蓋裝置的機車之側視圖。 圖2為沿圖1中的箭頭2之箭視放大圖。 圖3為沿圖2中的3 - 3線所作之剖面圖。 圖4為沿圖3中的4 - 4線所作之剖面圖。 圖5為沿圖4中的5 - 5線所作之剖面圖。 圖6為燃料蓋的打開狀態與圖3相對應之示意圖。 圖7為沿圖6中的7 - 7線所作之剖面圖。 (元件符號說明） C 關閉位置 0 打開位置 S 機車 1 車架 1 h 車頭管 1 m 主車架1231284 发明 Description of the invention: [Technical field to which the invention belongs] The present invention relates to an improvement of a fuel cap device of a locomotive. A fuel supply port of an upper case is opened on a body cover which covers a fuel tank supported on a frame. Facing the fuel supply window, the fuel cap device has a fuel cap that opens and closes the solid fuel window, and a locking position locking mechanism for the fuel cap. [Prior Art] In a conventional fuel cap device of a locomotive, for example, as disclosed in a patent document, a synthetic resin fuel cap and a synthetic resin cap are directly hinged, and between the fuel cap and the body cap,机构 机构。 Structure. [Patent Document 1] Japanese Utility Model Registration No. 2, 5 3 6, 6 2 2 [Summary of the Invention] (Problems to be Solved by the Invention) In the fuel cap device of the locomotive, in order to prevent the lid from being opened due to mischief, the rigidity of the hinge and the locking mechanism must be sufficiently ensured. Therefore, in the conventional fuel cap device described above, in order to determine the rigidity of the receiving portion, the thickness of the synthetic resin body cover and the fuel cap are large. However, molding these members to a large thickness results in increased costs. . The present invention is proposed in view of the above situation. The object of the present invention is to provide the fuel cap device of the above-mentioned locomotive, even if it is not placed in a particularly large thickness 312 / Invention Specification (Supplement) / 92-11 / 92123563, the fuel present The lock body of the provided locker 1 is locked to increase the support weight setting of the fuel bearing part in the case that the 1232284 body cover and fuel cap are formed, and the support of the hinge and the locking mechanism can be fully ensured. The rigidity of the part prevents the fuel cap from being opened due to mischief. (Means for Solving the Problem) In order to achieve the above object, the present invention is a fuel cap device for a locomotive, and a fuel supply window facing a fuel supply port of the fuel tank is opened on a body cover covering a fuel tank supported on a frame. The fuel cap is provided with a fuel cap that realizes opening and closing of the fuel supply window and a locking mechanism that locks the fuel cap in its closed position. The first feature is that the inner surface of the fuel cap is combined with a reinforcing member that enhances its rigidity. The frame is pivotably supported on the frame in an openable and closable manner, and the above-mentioned locking mechanism is formed between the reinforcing member and the frame. According to this first feature, since the fuel cap whose rigidity is reinforced by the reinforcing member can suppress deformation to a small degree even under an external force, the reinforcing member and the locking mechanism are firmly supported on the frame side, The body cover has nothing to do with this support, so even if the body cover is deformed due to mischief, the fuel cap can continue to cover the fuel tank cap normally to prevent the fuel cap from being opened. In this way, the thickness of the body cover and the fuel cap can be reduced, and the weight and cost can be reduced. In addition to the first feature, the second feature of the present invention is that the fuel cap is made of synthetic resin, and the reinforcing member fixed to the fuel cap is hinged to one end portion of a highly rigid pedestal fixed to the frame. At the same time, the aforementioned locking mechanism is formed between the other end portion of the pedestal and the reinforcing member. According to this second feature, the fuel cap and the locking mechanism can be assembled on a common base fixed to the vehicle frame to form a fuel cap device mounting member, which can improve assemblability. 3Π / Invention Manual (Supplement) / 92-11 / 92123563 1231284 In addition to the first or second feature, the third feature of the present invention is that the fuel tank is provided so that the bottom thereof is located under the tread plate of the small locomotive A vehicle body cover provided with the fuel supply window is provided at a middle portion of the footboard. According to this third feature, the center of gravity of the locomotive can be lowered by disposing the fuel tank below the footboard, and the ineffective opening of the fuel cap can be prevented even when the user steps on the body cover and the fuel cap. [Embodiment] An embodiment of the present invention will be described below with reference to an embodiment of the present invention shown in the accompanying drawings. FIG. 1 is a side view of a locomotive having a fuel cap device according to the present invention, FIG. 2 is an enlarged view taken along an arrow 2 in FIG. 1, and FIG. 3 is a cross-sectional view taken along line 3-3 in FIG. 2. 4 is a cross-sectional view taken along line 4-4 in FIG. 3, FIG. 5 is a cross-sectional view taken along line 5-5 in FIG. 4, and FIG. 6 is a schematic view corresponding to FIG. 7 is a sectional view taken along line 7-7 in FIG. 6. In addition, in the following description, the front, back, left, and right are based on the locomotive S. First, in FIGS. 1 and 2, the frame 1 of the small locomotive S is composed of a head tube 1 h, a main frame 1 m, and a U-shape. The left and right pair of side frames 1 s, 1 s are configured, the head tube lh supports the front fork 9 in a steerable manner, and the main frame lm extends rearward from the bottom end of the head tube 1 h, from The middle part is divided into two parts toward the rear part. The front and rear ends of the side frame 1 s, 1 s are welded to the side of the bottom end portion of the head tube 1 h and the side of the middle portion of the main frame 1 m. The frame is detoured below 1 m; on the left and right side frames 1 s, 1 s, fuel 8 312 / Invention Specification (Supplement) / 92-11 / 92123563 1231284 Box 2 and the fuel tank 2 A pair of footboards 3, 3 protruding from the left and right sides; between the two footboards 3, 3, a body cover 4 made of synthetic resin is connected, and the body cover 4 is tunnel-shaped and covers the main frame 1 m front and 2 fuel tanks. At this time, in order to lower the center of gravity of the locomotive S, the fuel tank 2 is provided so that the bottom thereof is located under the footboards 3, 3. The cylindrical fuel supply port 6 with the fuel tank cap 5 and the fuel tank 2 screwed is installed on one side of the top surface of the fuel tank 2 to avoid the main frame 1 m, and the body cover 4 is opened to face the fuel supply. A fuel supply window 7 opened at the port 6 is provided with a fuel cap 8 made of synthetic resin for opening and closing the fuel supply window 7. As shown in FIGS. 3 to 5, a plurality of convex portions 8 a and 8 a are integrally formed on the inner surface of the fuel cap 8, and a steel plate reinforcing member 10 for reinforcing the fuel cap 8 is passed through a small screw 1 1, 11 is combined with these convex portions 8 a and 8 a. The mounting base 12 is welded to one side of the main frame 1 m to be integrated into one body. A plurality of bolts 14, 14 and nuts 15, 15 will be used to make a steel plate with high rigidity. The pedestal 1 3 is fixed on the mounting base 12. The nuts 15 and 15 are welding nuts welded to the mounting base 12 in advance. This pedestal 1 3 has a front end portion 1 a and a rear end portion 1 3 b which are bent at one side of the fuel supply port 6 so as to be clamped back and forth, and a front end portion 1 a of which The articulated shaft 16 is rotatably supported on the articulated shaft 16 which is integrally connected with one end portion of the reinforcing member 10 described above. The articulated arm 17 is rotated around the articulated shaft 16. Thereby, the fuel cap 8 can be rotated between the closed position C (refer to FIGS. 3 and 4) to lock the fuel supply window 7 and the open position 0 (refer to FIGS. 6 and 7) to open the fuel supply window 7. . On the hinge shaft 16, an opening spring 18 is installed, which opens the hinge 9 3Π / Invention Specification (Supplement) / 92-11 / 92123563 1231284 The arm 17 is biased toward the opening direction of the fuel cap 8, It consists of a torsion coil spring. In addition, at the other end portion of the reinforcing member 10, a latch 20 having a shape protruding downward is fixed, and a bottom plate 2 2 of the latch fastener 2 1 is fixed to the base 13 by a plurality of bolts 2 3 and 2 3. On the rear end portion 1 3 b, the latch fastener 21 and the latch 20 are locked together to lock the fuel cap 8 in the closed position C. The locking mechanism 19 is composed of the latch 20 and the latch fastener 21. The latch fastener 21 is previously known and includes the above-mentioned bottom plate 22 having a U-shaped groove 25 capable of accommodating the latch 20, and pivotably supported on the bottom plate 22 and the U-shaped groove 2 described above. 5 —Look up the locking claw member 2 6 holding the latch 20; while in the locking direction of the holding bolt 20, apply pressure to the locking claw member 26, and connect it to the operating rope 27, through which the operating rope 2 7 The traction can be turned in the direction of disengaging the latch 20. The operation rope 27 is linked with a combination switch (not shown) driven by an engine key. When the switch is operated to a set open position of the fuel cap, the operation rope 27 is pulled. In addition, the fuel cap device mounting member 2 8 is constituted by a pedestal 1 3, a fuel cap 8 mounted thereon, and a locking mechanism 19 formed 'after mounting the mounting member 2 8', and the pedestal 13 is fixed to the mounting base 12. The reinforcing member 10 has a structure in which, when the fuel cap 8 is held in the closed position C, it faces the top surface of the fuel tank cap 5 and restrains the fuel tank cap 5 from opening by itself. As a result, even if the fuel cap is broken in case of damage, it is possible to prevent the fuel tank cap 5 from being opened due to mischief. Furthermore, in the figure, the component symbol 2 9 is the fuel supply 10 312 / inventory supplementary piece installed on the fuel tank 2) / 92-11 / 92123563 1231284 The fuel receiving plate on the neck of port 6, during the fuel supply process Receives fuel leaked from the fuel supply port 6 and discharges it to a discharge pipe (not shown). The effect of this embodiment will be described below. When supplying fuel to the fuel tank 2, firstly, through the engine key, operate the combination switch to the set open position of the fuel cap, pull the operation rope 27, and turn the locking claw member 26 to the open position. Disengaged, as shown in FIGS. 6 and 7, the fuel cap 8 is turned upward by the spring force of the opening spring 18, so that the fuel supply window 7 can be opened. Then, if the fuel tank cap 5 is removed from the fuel supply port 6, the fuel can be supplied from the fuel supply port 6 to the fuel tank 2 through the fuel supply window 7. If the fuel tank cap 5 is placed at the fuel supply port 6 after the fuel is supplied, and the fuel cap 8 is closed as shown in FIGS. 3 and 4 against the spring pressure of the opening spring 18, the latch 20 is accommodated in At the same time as the U-shaped groove 2 5 of the bottom plate 2 2 of the latch fastener 21 is held by the locking claw member 26, it is in a locked state. However, since the fuel cap 8 made of synthetic resin is reinforced by the reinforcing member 10 fixed to the inner surface thereof, the deformation can be suppressed even when an external force such as a user's foot is applied. To a lesser extent. Furthermore, while a hinge arm 17 integrally connected with the reinforcing member 10 is hinged with a highly rigid base 13 fixed to the main frame lm, a locking mechanism is formed between the base 13 and the reinforcing member 10 19. Thus, the body cover 4 having the fuel supply window 7 is completely independent of the support of the fuel cap 8 and the locking mechanism 19, and therefore, even if the body cover 4 is deformed due to, for example, mischief or the user's pedal action The fuel cap 8 can still be prevented from being opened ineffectively, so the fuel cap 8 can be used to continue to enter the fuel tank cap 5 as appropriate. 11 312 / Invention Manual (Supplement) / 92-11 / 92123563 1231284 And the thickness of the fuel cap 8, the present invention is not limited to the actual range described above, and various designs can be carried out (inventive effects). As described above, according to the fuel cap device of the present invention, the fuel tank for the fuel tank is opened on the cover. The fuel cap lock mechanism for opening and closing of the fuel supply window, the internal closure of the fuel cap, and when the reinforcing member is openable, the rigidity of the reinforcing member and the frame is enhanced by the reinforcing member, and the deformation is still suppressed to a small value. The structure is firmly supported on the frame, so even if the vehicle body cover is covered by a mischief, normally continuing to cover the fuel tank can reduce the body cover and the fuel cover. In addition, the first fuel cover according to the present invention is made of synthetic resin, and the height on the frame is high. The other end portion of the seat of the rigid pedestal and the common pedestal where the reinforcing member is fixed to the frame constitute a fuel cap device assembly and are opened. As a result, the reduced body cover helps reduce weight and cost. The embodiment can be changed without departing from its substance. According to a first feature, the present invention is a fuel supply window facing a fuel tank body cover port of a locomotive supported on a frame, and has a reinforcement for realizing and locking the fuel cap in its closed position surface and enhancing its rigidity. The above-mentioned locking mechanism is formed between the components pivotally supported on the frame. Due to the fuel cap's degree even under external force, in addition, the support of the reinforcement member and the lock side has nothing to do with the body cover. In the case of deformation, the fuel cap can still be used to prevent the fuel tank cap from being opened. As a result, the thickness can be reduced and the cost can be reduced. 2nd feature, in addition to the 1st feature, the reinforcing member fixed to the above is hinged to one end, and the above-mentioned locking mechanism is formed between the tables, so the fuel cap and the locking mechanism can be assembled on the seat. , Which can improve assemblability. 3U / Invention Manual (Supplement) / 92-11 / 92123563 12 1231284 In addition, according to the third feature of the present invention, in addition to the first or second feature, the fuel tank is disposed so that the bottom thereof is below the footboard of the small locomotive A vehicle body cover provided with the fuel supply window is provided at a middle portion of the footboard, so that the center of gravity of the locomotive can be lowered by setting a fuel tank under the footboard, and even when a user steps on the body cover or In the case of the fuel cap, the fuel cap can still be prevented from being opened ineffectively. [Brief description of the drawings] FIG. 1 is a side view of a locomotive having a fuel cap device according to the present invention. FIG. 2 is an enlarged view of an arrow along arrow 2 in FIG. 1. FIG. 3 is a sectional view taken along line 3-3 in FIG. 2. FIG. 4 is a sectional view taken along line 4-4 in FIG. 3. FIG. 5 is a cross-sectional view taken along line 5-5 in FIG. 4. FIG. 6 is a schematic diagram corresponding to FIG. 3 in an opened state of the fuel cap. FIG. 7 is a sectional view taken along line 7-7 in FIG. 6. (Description of component symbols) C Closed position 0 Opened position S Locomotive 1 Frame 1 h Head tube 1 m Main frame
Is U形側車架 13 312/發明說明書(補件)/92-11/92123563 1231284 2 燃料箱 3 踏腳板 4 車身罩 5 油箱蓋 6 供油口 7 供油窗 8 燃料蓋 8a 凸部 9 前叉 10 增強構件 11 小螺釘 12 安裝座 13 台座 13a 前端部 13b 後端部 14 螺栓 15 螺母 16 鉸接轴 17 鉸接臂 14Is U-shaped side frame 13 312 / Invention manual (Supplement) / 92-11 / 92123563 1231284 2 Fuel tank 3 Footboard 4 Body cover 5 Fuel tank cap 6 Fuel supply port 7 Fuel supply window 8 Fuel cap 8a Convex 9 front Fork 10 Reinforcement member 11 Small screw 12 Mounting base 13 Stand 13a Front end 13b Rear end 14 Bolt 15 Nut 16 Articulated shaft 17 Articulated arm 14
312/發明說明書(補件)/92-11/92123563 1231284312 / Invention Specification (Supplement) / 92-11 / 92123563 1231284
18 打 開 彈 簧 19 鎖 定 機 構 20 插 鎖 21 插 銷 扣 件 22 底 板 23 螺 栓 25 U 形 槽 26 鎖 定 爪 構 件 27 操 作 繩 28 燃 料 蓋 裝 置裝配件 29 燃 料 接 收 盤 312/發明說明書(補件)/92-11/92123563 1518 Opening spring 19 Locking mechanism 20 Bolt 21 Bolt fastener 22 Base plate 23 Bolt 25 U-shaped groove 26 Locking claw member 27 Operating rope 28 Fuel cap device assembly 29 Fuel receiving tray 312 / Invention specification (Supplement) / 92-11 / 92123563 15