M430422 五、新型說明： 【新型所屬之技術領域】 本新型是有關於-種自行車M件，特別是指—種用於 自行車的前叉肩蓋。 【先前技術】 習知自行+的前叉.肩蓋大都是利用熱鍛造製程方式製 造而成，所以往往是實心結構，所以當要與一立管及二前 叉内管做結合時，必需要再進行搪孔作業，以利後續進行 • &一步的接合動作，如此’增加了製程工序上的成本支出 。另外，由於是實心結構，所以也有重量較重的缺點，在 現今任何產品皆講究輕量化的訴求下，此一方面，仍有待 改善的空間。、 【新型内容】 目此’本新型之目的，即在提供一種具輕量化且結構 強度佳的前叉肩蓋。 於是，本新型前叉肩蓋，包含一套接段，及二延伸段 • 。 該套接段沿一軸線方向延伸並具有一開口。 該等延伸段分別由相反於該開口—端的二相反側朝遠 離該軸線與該開口方向延伸，每一延伸段分別包括—連接 於該套接段的肩部，及一由該肩部朝遠離該開口方向延伸 並”有#接口的套接部，該等肩部管獲分別大於該等套 接部管徑，該等套接口分別連通於該開口，該套接段與該 等延伸段為金屬材料一體成型而成。 M430422 本新型的有益效果在於：藉由該套接段及該等延伸段 為中空的設計，可有效地減少重量而達到輕量化的效果， 另外，該套接段及該等延伸段為一體成型，也可以有效地 縮紐製程工序而降低生產成本，並且提升結構強度。 【實施方式】 有關本新型之前述及其他技術内容、特點與功效，在 以下配合參考圖式之一個較佳實施例的詳細說明中，將可 清楚的呈現。 ，閱圖1、圖2及圖3，本新型前又肩蓋一較佳實施例 包含一套接段2，及二延伸段3。 乂套接奴2沿一軸線l方向延伸，並包括一環繞該軸 線L且界定出該開口 22的管壁21。 邊等延伸段3分別由相反於該開口 22 _端的二相反侧 朝遠離該軸線L與該開口 22方向延伸。 每延伸& 3包括-由該管壁21 一側朝遠離該抽線l 與該開口 22方向延伸且界定出一套接口 33i的環繞壁η。 每L伸I又3分別還包括一連接於該套接段2的肩部 32 22方向延伸並具有該 套接口如的套接部33，該“部32管徑分別大於該等套 接部33管徑，該等套接口 331分別連通於該開口 η，該套 ，段2與料延伸段3為金屬材料-體成型而成。其中， 在本較佳實施例中，兮公麗从a _ a μ金屬材料為鋁合金、鎂合金，及鋁 鋇合金其中之一，兮笪太社 該等套接口 33丨的截面外形略呈三角形 4 參閱圖4’在使用上，是將—立f⑽插設於該開口 22 ,並將二前又内f 2〇〇分別套接於該等延伸段3的套接 部33，而該等延伸段3的套接部33與該等前叉内管細的 結合方式’ 1以是利用《銲接後再打磨銲接表面的手法或 者是利用膠合的方式來處理。 據上所述可知，本新型前叉肩蓋具有下列優點及功效 * 一、藉由該套接段2及該等延伸段3為中空的設計， 可有政地滅少重量而達到輕量化的效果。 一、 藉由該套接段2及該等延伸段3為一體成型，也 可以有效地縮短製程工序而降低生產成本，並且提升結構 強度。 二、 藉由該套揍部33的設計，讓該等前叉内管200易 於連結，可以大幅提升製造上的效率。 准以上所述者，僅為本新型之較佳實施例而已，當不 能以此限定本新型實施之範圍，即大凡依本新型中請專利 範圍及新型說明内容所作之簡單的等效變化與修飾，皆仍 屬本新型專利涵蓋之範圍内。 【圖式簡單說明】 圖1是本新型前叉肩蓋一較佳實施例的立體圖； 圖2是該較佳實施例的一剖視圖； 圖3是該較佳實施例的一底視圖；及 圖4疋s亥較佳實施例的；使用趺態圖。 M430422 【主要元件符號說明】 100… •…立管 31…· ••…環繞壁 200… •…前叉内管 32.… 肩口P 2 ....... …·套接段 33…· •…套接部 21…… •…管壁 331 ·· •…套接口 ...r-Ύ T ...... 11...... ----開口 L· .....神泳 3 ....... …延伸段M430422 V. New description: [New technical field] The new type is related to the type of bicycle M, especially the front fork shoulder cover used for bicycles. [Prior Art] The front forks and the shoulder covers of the self-made + are mostly manufactured by the hot forging process, so they are often solid structures, so when combined with a riser and a second fork inner tube, it is necessary The boring operation is carried out again to facilitate the subsequent & one-step joining action, thus increasing the cost of the process. In addition, because it is a solid structure, it also has the disadvantage of being heavier. In today's demand for lightweight products, there is still room for improvement. [New Content] The purpose of the present invention is to provide a front fork shoulder cover that is lightweight and structurally strong. Thus, the new front fork shoulder cover comprises a set of connecting sections and two extension sections. The socket extends in an axial direction and has an opening. The extensions extend from opposite sides of the opening-end to the direction away from the axis, and each extension includes a shoulder connected to the sleeve, and a shoulder facing away from the shoulder The opening direction extends and has a socket portion of the # interface, the shoulder tubes are respectively larger than the diameters of the socket portions, and the sockets are respectively connected to the opening, and the socket portion and the extension portion are The metal material is integrally formed. M430422 The utility model has the advantages that the hollow part of the sleeve section and the extension sections can effectively reduce the weight and achieve the weight reduction effect, and the sleeve section and The extensions are integrally formed, and the manufacturing process can be effectively reduced to reduce the production cost and improve the structural strength. [Embodiment] The foregoing and other technical contents, features and effects of the present invention are combined with the following reference drawings. A detailed description of a preferred embodiment will be apparent. Referring to Figures 1, 2 and 3, a preferred embodiment of the front and rear shoulder cover of the present invention comprises a set of segments 2, and two extensions. Stretching section 3. The ferrule slave 2 extends along an axis l direction and includes a tube wall 21 surrounding the axis L and defining the opening 22. The edge extensions 3 are respectively opposite to the opposite ends of the opening 22 _ The side extends away from the axis L and the direction of the opening 22. Each extension & 3 includes a surrounding wall η extending from the side of the tube wall 21 away from the drawing line 1 and the opening 22 and defining a set of interfaces 33i Each of the extensions I and 3 further includes a sleeve portion 33 extending in the direction of the shoulder portion 32 22 of the sleeve portion 2 and having the sleeve interface, and the diameter of the portion 32 is larger than the sleeve portion respectively. 33 pipe diameters, the sockets 331 are respectively connected to the opening η, and the sleeve, the section 2 and the material extension section 3 are formed of a metal material body. Wherein, in the preferred embodiment, the gonglili from the a_a μ metal material is one of an aluminum alloy, a magnesium alloy, and an aluminum-bismuth alloy, and the cross-sectional shape of the socket 33丨 of the 兮笪太社 is slightly Triangle 4 Referring to FIG. 4', in use, the vertical f (10) is inserted into the opening 22, and the two front and the inner f 2 套 are respectively sleeved to the socket portion 33 of the extension 3, and the same The manner in which the sleeve portion 33 of the extension section 3 is thinly combined with the inner tube of the front fork is treated by means of "welding the surface after welding or by gluing." According to the above description, the new front fork shoulder cover has the following advantages and functions. 1. By the hollow design of the socket section 2 and the extension sections 3, the weight can be reduced by weight and light weight. effect. 1. By integrally forming the socket section 2 and the extension sections 3, the manufacturing process can be effectively shortened, the production cost can be reduced, and the structural strength can be improved. 2. By designing the set of jaws 33, the front fork inner tubes 200 are easily connected, and the manufacturing efficiency can be greatly improved. The above-mentioned ones are only the preferred embodiments of the present invention, and the scope of the present invention cannot be limited thereto, that is, the simple equivalent changes and modifications made by the patent scope and the new description contents in the present invention. , are still within the scope of this new patent. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a preferred embodiment of a front fork shoulder cover; FIG. 2 is a cross-sectional view of the preferred embodiment; FIG. 3 is a bottom view of the preferred embodiment; 4疋shai preferred embodiment; use the state diagram. M430422 [Description of main component symbols] 100... •...Riser 31...· ••...Wrap around wall.........Fork inner tube 32.... Shoulder P 2 .............·Sleeve segment 33...· •...sleeve 21... •...wall 331 ·· •...sleeve...r-Ύ T ......11... ----Open L· .... . 神泳 3 ....... ...extends