,M340946 八、新型說明·· 【新型所屬之技術領域】 本案係關於車輛之油箱蓋，更詳而言之，係—種緩衝該油箱蓋開啟動作之 結構。 【先前技術】 以機車為例 、又輛之燃料供給口係設置在車頭下方護槽腳板的背面， -油箱蓋可封閉或開啟該燃料供給口。現有的燃料油箱蓋總成，大多採用彈開 式油箱蓋餅，以鑰___鎖具，可以控_蓋啟開。辦胖 給口。側邊設油封彈簧，油箱蓋旋轉軸處設扭轉彈黃，油箱蓋啟開時，即會因油 封彈簧及扭轉彈簧兩者的彈力而自動打開。 上述油箱蓋於封閉燃料供給口後，隨著油料之使用而產生密閉真空吸引 力，而將油箱蓋緊緊的吸附住，因此該油封彈簧及扭轉彈菁兩者的彈力必需相 當大，才能抗衡該真空吸引力，油箱蓋才能自動打開。但是彈力大的油封彈菁 及扭轉彈簧會使得油箱蓋打開時的衝力變得非常大，開啟瞬間速度往往又快又 .急’可能倾擊朗者敝油箱蓋的手，亦可驗擊使用者的職或者是油箱 蓋附近的車體結構。 -種用以解決上述油箱蓋開啟瞬間衝力過大、速度過快等問題之方案，於 先則之1292190-案中提出。該案係以—種阻尼機構緩衝油箱蓋彈向開啟方向之 彈力，該阻尼機構具有-酸於油紐旋轉軸的上齒輪，及—固設於該上齒輪 相_合位置的下錄，上下齒輪咬合㈣箱蓋啟料發生轉動阻力而產生阻 尼作用。 【新型内容】 5 t M340946 —本案之目的係在提供-種車輛之油箱蓋緩衝結構，該緩衝結構用以緩和油 箱蓋的打開速度，可使油箱蓋被開啟後以較緩慢的速度打開。 ‘ 本案所提供之油箱蓋緩衝結構，對油箱蓋之打開動作提供漸進式阻尼，不 •影響油箱蓋開啟瞬間所需要的力量，且使油箱蓋開啟的動作漸漸緩慢。 以較緩慢速度打開的油箱蓋，可使其開啟動作展現優柔質感。 .本㈣以簡單的、較少之零組相及不擴大__蓋總成之體積為 原則設置上述的緩衝結構。 ^本案緩衝結構主要包括使-油箱蓋與-㈣供細連接的-旋轉軸，一擺 動塊固定於職轉軸之軸端，—雜活動元件設於該擺動塊的縣端，以及一 設於雜料供給π之側邊與該雜活動元件姆接觸祕形滑動面。該油箱蓋 從關閉狀態解除時，該擺動塊隨著旋轉軸之旋轉而擺動，彈性活動元件於該弧 形滑動面上滑移’兩者的相對磨擦力對該旋轉軸之轉動附予適當的阻力，據以 緩衝該油箱蓋㈣時的瞬間緩衝力，而緩和該油箱蓋㈣的動作。 Φ 本案之弧形滑動面係以第一圓弧面及第二圓孤面貫連成-上拋物線雜， .且第-圓弧面之弧度較第-圓弧面小，基於此，第二圓弧面會對彈性活動元件 形成擠壓使兩者相對的磨擦力增加，以致於對油箱蓋的打開動作附予一較高的 阻力，進而且使油箱蓋開啟的動作漸漸緩慢。 【實施方式】 為便於說明本案於上述新型内容一攔中所表示的中心思想，兹以具體實施 例表達。實施例中各種不同物件及其變形量或位移量係按適於例舉說明之比 例，而非按實際元件的比例予以繪製，合先敘明。 如第三圖及第四圖，本案之緩衝結構係設置於—習知的油箱蓋總成，該油 6 ,M340946 箱蓋總成包括一供注入燃料之燁料 、、、十供、、Ό 10、一將上述燃料供給口開啟或關閉 的才蓋可將上述/由相蓋11保持於關閉上述燃料供給口 10之狀態的保持 麵、—鎌上義顧構触紅鱗狀_嫌機構、-將上述油箱蓋n 彈向竭《方向之彈力手。本案之緩衝結構2⑽為緩衝將上述油箱蓋11彈向開 啟方向之彈力。 - 如第一圖及第二圖，該緩衝結構20包括： m —使上述油箱蓋11與雜料供給口1Q連接職轉節，該旋轉軸21P遺著該 油箱蓋11之啟閉動作而旋轉。 k動塊22 ’固定於该旋轉軸21之軸端，並隨著該旋轉軸21之旋轉而擺動。 彈ϋ活動it件23 ’⑵於该擺動塊22的擺動端221。在本案實施例中，該彈 性活動元件23係一彈簧231及一鋼珠232。 -没於該燃料供給口 1 〇之側雜該彈性活動耕23相對接觸的弧形滑動面 30，該弧形滑動面30並非正圓之圓弧，而是由一第一圓弧面31接續一第二圓孤 _面32而形成一向上的拋物線，該第二圓弧面32的弧度較第一圓弧面31小。 • Α狀侧壁4〇，设於上述燃料供給口 10的側邊，其所圍構的一内部空間41 供上述擺動塊22及弧形滑動面30於其中。 一扭轉彈簧50，其一簧腳51固定於該擺動塊22，另一簧腳52抵止於該盒狀 側壁40的内壁面。 一封板60，以數個螺絲61鎖固於該盒狀侧壁40，用以封閉該内部空間41而 隱藏上述各物件。 如第五圖，上述保持機構將油箱蓋11保持於關閉上述燃料供給口 1〇的狀 態，該擺動塊22隨著旋轉軸21定位在第一位置，上述鋼珠232接觸該第一圓弧面 7 ,M340946 31，上述扭轉彈簧5〇被壓縮扭轉儲能。 如第六圖，上述解除機構將該油箱蓋Μ從關閉的狀態解除，該油箱蓋仂啟 開’上述扭轉彈簧50轉能復位，該擺動塊22隨著旋轉軸21而擺動，該鋼珠從 、從第-圓弧面31滑移至第二圓弧面32。鋼珠232於弧形滑動面3〇上滑移的磨擦 力對該旋轉軸21之轉動附予適當的阻力，可緩衝該油箱蓋川丁開時的瞬間衝 ，力’而緩和该油箱蓋11打開的動作。基於該第二圓弧面32的弧度較第一圓弧面 _ 31小之緣故，第二圓弧面32會對該彈性活動元件23形成擠壓，而使鋼珠故與 弧形滑動面3Q之相對磨擦力增加，以致於對油箱蓋彳彳打開的動作时—較高的 阻力，進而且使油箱蓋11開啟的動作漸漸緩慢。 、雖然本案是以-個最佳實施例做說明，但精於此技藝者能在不脫離本案精 神與範缚下做各種不同形式的改變。以上所舉實施例僅用以說明本案而已，非 用以限制本案之翻。舉凡*違本雜神所從事_雖改錢化，俱屬本案 申請專利範圍。 " ^ _【圖式簡單說明】 '第一圖為本案緩衝結構之立體分解圖。 第二圖為本案緩衝結構之組合外觀圖。 第二圖為本銳衝結構與—已知油箱蓋總狀組合外觀圖之—。 第四圖為本案緩衝結構與-已知油箱蓋總成之組合外觀圖之二。 第五圖為本案緩衝結構之組合正視暨動作示意圖之一。 第六圖為本案缓衝結構之組合正視暨動作示意圖之二。 【主要元件符號說明】 10-燃料供給口 8 M340946 11 -油箱蓋 20- 緩衝結構 21- 旋轉軸 22- 擺動塊 221-擺動端 23- 彈性活動元件 231-彈簧 β 232-鋼珠 30- 孤形滑動面 31- 第一圓弧面 • 32-第二圓弧面 40- 盒狀側壁 41- 内部空間 50-扭轉彈簧 ® _51-簧腳 52-簧腳 60-封板 61-螺絲, M340946 VIII, new description · · [New technical field] This case is about the fuel tank cap of the vehicle, more specifically, the structure that buffers the opening action of the fuel tank cap. [Prior Art] Taking the locomotive as an example, the fuel supply port of the vehicle is disposed at the back of the foot plate of the underside of the vehicle head, and the fuel tank cover can close or open the fuel supply port. The existing fuel tank cap assembly mostly uses a pop-up fuel tank cap cake, and the key ___ lock can be controlled to open. Do fat to give mouth. The oil seal spring is arranged on the side, and the rotating shaft of the fuel tank cap is provided with a torsion spring. When the fuel tank cover is opened, it will automatically open due to the elastic force of both the oil seal spring and the torsion spring. After the fuel tank cap is closed to the fuel supply port, the closed vacuum attraction is generated as the oil is used, and the fuel tank cap is tightly adsorbed. Therefore, the elastic force of the oil seal spring and the torsion spring must be relatively large to compete. The vacuum attraction allows the fuel tank cap to open automatically. However, the large elastic oil seal and the torsion spring will make the force of the fuel tank cap open very large, and the speed of opening will be fast and fast. It is possible to slam the hand of the tank cover and also test the user. The position is the body structure near the fuel tank cap. - A solution to solve the problem of excessive punching force and excessive speed at the moment of opening the fuel tank cap is proposed in the first case of 1292190-. The case is characterized in that the damping mechanism buffers the elastic force of the fuel tank cap in the opening direction, and the damping mechanism has an upper gear that is acid-on the rotating shaft of the oil button, and is fixed to the lower position of the upper gear phase. Gear occlusion (4) The lid of the box cover generates rotational resistance and produces damping. [New content] 5 t M340946 - The purpose of this case is to provide a fuel tank cap buffer structure for a vehicle, which is used to alleviate the opening speed of the fuel tank cap, so that the fuel tank cap can be opened at a slower speed after being opened. ‘ The fuel tank cap cushioning structure provided in this case provides progressive damping of the opening action of the fuel tank cap. It does not affect the force required to open the fuel tank cap, and the action of opening the fuel tank cap is gradually slow. The fuel tank cap that opens at a slower speed allows it to be opened for a softer texture. (4) The above buffer structure is set on the principle that the volume of the simple, less zero phase and the volume of the __cap assembly are not expanded. ^ The buffer structure of the present case mainly includes a rotating shaft for the fuel tank cap and the (four) for fine connection, and a swinging block is fixed to the shaft end of the working shaft, the miscellaneous movable component is disposed at the county end of the swinging block, and one is disposed in the miscellaneous The side of the material supply π is in contact with the miscellaneous moving element to contact the secret sliding surface. When the fuel tank cap is released from the closed state, the swinging block swings with the rotation of the rotating shaft, and the elastic movable element slides on the curved sliding surface. The relative frictional force of the two is attached to the rotation of the rotating shaft. The resistance is based on the instantaneous cushioning force when the fuel tank cap (4) is buffered, and the movement of the fuel tank cap (4) is alleviated. Φ The curved sliding surface of the case is formed by the first circular arc surface and the second circular orphan plane being connected to the upper parabolic line, and the arc of the first arc surface is smaller than the first arc surface, based on this, the second The arcuate surface compresses the elastic movable element so that the relative frictional force of the two increases, so that a higher resistance is attached to the opening action of the fuel tank cap, and the action of opening the fuel tank cap is gradually slow. [Embodiment] In order to facilitate the explanation of the central idea expressed in the above-mentioned novel content, the present invention is expressed by a specific embodiment. The various items and their amounts of deformation or displacement in the embodiments are drawn to the proportions exemplified in the description and not to the proportions of the actual elements. As shown in the third and fourth figures, the buffer structure of the present invention is provided in a conventional fuel tank cap assembly, and the oil 6 and M340946 cover assembly includes a material for injecting fuel, a ten supply, and a crucible. 10. A cover that opens or closes the fuel supply port to hold the above-mentioned holding surface 11 in a state in which the fuel supply port 10 is closed, and a red scaly structure. - Blow the above fuel tank cap n to the direction of the stretch hand. The cushioning structure 2 (10) of the present case is an elastic force for buffering the above-described fuel tank cap 11 in the opening direction. - as in the first and second figures, the buffer structure 20 includes: m - connecting the fuel tank cap 11 and the miscellaneous material supply port 1Q to a job rotation joint, and the rotation shaft 21P is rotated by the opening and closing operation of the fuel tank cap 11 . The k moving block 22' is fixed to the axial end of the rotating shaft 21, and swings as the rotating shaft 21 rotates. The magazine activity member 23' is (2) at the swing end 221 of the swing block 22. In the embodiment of the present invention, the elastic movable member 23 is a spring 231 and a steel ball 232. - an arc-shaped sliding surface 30 that is not in contact with the elastic movable tiller 23 on the side of the fuel supply port 1 , the arc-shaped sliding surface 30 is not a circular arc of a perfect circle, but is connected by a first circular arc surface 31 A second circular orbit 32 forms an upward parabola, and the second circular arc surface 32 has a smaller curvature than the first circular arc surface 31. A braided side wall 4 is provided on the side of the fuel supply port 10, and an inner space 41 enclosed therein is provided with the swinging block 22 and the curved sliding surface 30 therein. A torsion spring 50 is fixed to the swinging block 22 by a spring leg 51, and the other spring leg 52 abuts against the inner wall surface of the box-shaped side wall 40. A plate 60 is secured to the box-like side wall 40 by a plurality of screws 61 for closing the interior space 41 to conceal the objects. As shown in the fifth figure, the holding mechanism holds the fuel tank cap 11 in a state in which the fuel supply port 1 is closed, the swinging block 22 is positioned at the first position with the rotating shaft 21, and the steel ball 232 contacts the first circular arc surface 7 M340946 31, the torsion spring 5〇 is compressed and twisted to store energy. As shown in the sixth figure, the release mechanism releases the fuel tank cover from the closed state, the fuel tank cover is opened, and the torsion spring 50 is reversible, and the swinging block 22 is swung with the rotating shaft 21, and the steel ball is driven. Sliding from the first arc surface 31 to the second arc surface 32. The frictional force of the steel ball 232 sliding on the curved sliding surface 3 附 attaches appropriate resistance to the rotation of the rotating shaft 21, and can buffer the instantaneous rush of the fuel tank cover, and the force of the fuel tank cover 11 is relaxed. Actions. Based on the curvature of the second circular arc surface 32 being smaller than the first circular arc surface _ 31, the second circular arc surface 32 will press the elastic movable element 23 to make the steel ball and the curved sliding surface 3Q The relative frictional force is increased so that the action of opening the fuel tank cap - higher resistance, and the action of opening the fuel tank cap 11 is gradually slow. Although this case is explained by a best example, the skilled person can make various changes in the form without departing from the spirit and the norm of the case. The above embodiments are only used to illustrate the present case and are not intended to limit the case. Anyone who violates this miscellaneous god is engaged in _ although the money is changed, all of which belong to the scope of patent application. " ^ _ [Simple description of the schema] 'The first figure is a three-dimensional exploded view of the buffer structure of this case. The second figure is a combined appearance of the buffer structure of the present case. The second figure is the appearance of the combination of the sharp-punched structure and the known fuel tank cap. The fourth picture is the second appearance of the combination of the buffer structure and the known fuel tank cap assembly. The fifth picture is one of the schematic diagrams of the combination of the buffer structure of this case. The sixth picture is the combination of the front view and the action diagram of the buffer structure of this case. [Main component symbol description] 10-fuel supply port 8 M340946 11 - fuel tank cap 20 - buffer structure 21 - rotary shaft 22 - swing block 221 - swing end 23 - elastic movable element 231 - spring β 232 - steel ball 30 - orphan slide Face 31 - First circular face • 32 - Second circular face 40 - Box side wall 41 - Internal space 50 - Torsion spring ® _51 - Spring foot 52 - Spring foot 60 - Sealing plate 61 - Screw