1374814 九、發明說明 【發明所屬之技術領域】 本發明相關於自行車輪圈，且尤其相關於用於自行車 輪圈的可折疊且可熟化（curable )的多層加強板件，其被 配置或附著在自行車輪圈的內環狀側的一部份處，以接收 及支撐自行車輻條的端部部份。另外，本發明相關於將多 層加強板件附著於自行車輪圈的方法。 【先前技術】 近年來，自行車組件的開發及設計已變得日益重要， 特別是例如在競賽運動的領域。 持續地被重新設計及改良的一個組件便是自行車輪圈 ，尤其是自行車輪圈的負荷傳輸位置或是自行車輪圈用的 負荷傳輸組件。一個在自行車輪圈處與本發明一起被敘述 的位置便是從自行車輻條的端部部份通過至自行車輪圈的 Φ 內環狀側的位置。在自行車輪圈的內環狀側處接收自行車 • 輻條的位置或地點典型上代表負荷集中的區域。取決於自 行車輪圈在騎行期間的位置，上述負荷爲動態型式，亦即 有變化的型式。 爲不在同時增加自行車輪圈的總重量之下增進自行車 輪圈的結構性質，諸如強勁度（stiffness )及強度（ strength )，特別是重量輕的可折疊且可熟化的碳纖維及/ 或玻璃纖維加強的板件或薄片已被引入而附加地整合在自 行車輪圈結構上。換句話說，此種複合薄片已因此被折疊 -5- I3748l4 及黏結在自行車輪圈的內環狀表面上，用來接收自行車輻 條的端部部份。 已知的習知技術只是揭示使用型式及形狀簡單（例如 單層型式）的多層加強元件例如碳纖維加強板件，然而習 知技術並未揭示包含例如與實現靜態及動態類型的結構需 求有關的較具個性（more individual)且因而較爲可靠的 層設計的用來將自行車輻條附著在自行車輪圈上的多層加 強元件或多層加強組件。 【發明內容】 根據本發明，提供一種用於自行車輪圈的內環狀側的 至少一部份的至少一個多層加強元件。此至少一個多層加 強元件於基本（亦即未折疊或非變形）情況中包含成爲角 錐台狀（frustum of pyramid-like)組態的中間部份。此 種多層加強元件可被用來例如接收及/或支撐自行車輻條 的至少端部部份。此種多層加強元件可例如被黏結（經由 可熟化的黏著劑）於自行車輪圈的內環狀側。根據本發明 的多層加強元件容許例如負荷被平滑地引導且避免負荷有 不想要有的集中。另外，由於多層加強元件特別是中間部 份的設計，可避免例如在其面向自行車輪圈的部份或表面 薄片與自行車輪圈的內環狀側的外部內表面或外部側表面 之間有空穴。或者，中間部份可成爲具有寶塔（浮屠）形 (pagoda-shaped )組態或梯級形（cascade-shaped )組態 °基本（亦即未折疊或非變形）情況代表附著於自行車輪 -6- 1374814 圈之前的多層加強元件。 根據本發明的附加或可替代方面，提供一種用於自行 車輪圈的內環狀側的至少一部份的至少一個多層加強元件 。此至少一個多層加強元件包含包括至少兩層的中間部份 。此種多層加強元件容許例如加強元件的設計及負荷的引 導較有個性（individuality)。另外，此種多層加強元件 可例如較爲易於附著或黏結以及適配（adapted )於自行 車輪圈的內環狀側的外部內表面或外部側表面。 根據本發明的另一附加或可替代方面，中間部份的角 錐台狀組態可包含至少四個傾斜側部區域。在本發明的可 替代方面中，中間部份的角錐台狀組態可包含特別是八個 傾斜側部區域。此容許例如多層加強元件相對於自行車輪 圈的內環狀側的外部內表面或外部側表面的相較而言複雜 的形狀有更大的適配或調整的可能性。換句話說，多層加 強元件對於自行車輪圈的輪廓的適配可較爲容易。 根據本發明的另一方面，傾斜側部區域中的至少一個 可形成爲階梯狀。此容許例如進一步增進對於自行車輪圈 的內環狀側的外部內表面及外部側表面的相應凹槽或接收 部份的適配或裝配。 根據本發明的另一方面，角錐台狀組態可包含至少兩 層。以此種多層加強元件組態，可達成以上所述的方面。 根據本發明的另一方面，上述的至少兩層可構成爲且 被配置成形成角錐台狀組態。以此種多層加強元件組態， 可達成以上所述的方面。 1374814 根據本發明的另一方面，上述的至少兩層可相對於至 少一個平面彼此相似。此容許例如多層加強元件的製造過 程簡單’以及多層加強元件在自行車輪圈的內環狀側的外 部內表面及外部側表面的部份上的安裝或黏結較爲簡化。 根據本發明的另一方面，中間部份可包含至少第三層 。此容許例如使用數個由不同材料構成的層，且因而容許 有較有個別樣式的多層加強元件。例如，在中間部份內使 用至少三層容許具有高強勁度性質的由碳纖維加強材料構 成的一層被夾在由玻璃纖維加強材料構成的兩層之間。 根據本發明的另一方面，第一層的厚度及/或第三層 的厚度可等於或小於第二層的厚度。此容許例如多層加強 元件相關於結構及幾何需求（強勁度、穩定性、輪廓相似 性等）有改良的設計。 根據本發明的另一方面，多層加強元件可另外包含內 側部份及外側部份。中間部份可被設置在或夾在內側部份 與外側部份之間。內側部份及/或外側部份可分別包含至 少~層。 根據本發明的另一方面，上述的至少兩層的每_個及 /或多層加強元件的內側部份、外側部份' 或中間部份可 由選擇自由複合材料特別是非金屬纖維加強塑膠材料所組 成的群類的材料製成。換句話說，多層加強元件的疊層就 材料而言可不同。所使用的材料可爲纖維型式，例如單向 纖維，或可爲織物（fabric )型式，且可用可熟化的液體 黏者劑例如環氧樹脂來浸漬（impregnated)或染色（ -8- 1374814 tinctured)或飽和（saturated)。 根據本發明，提供一種自行車輪圈。此自行車輪圈係 由輪圈本體製成且包含至少一個多層加強元件。此至少一 個多層加強元件可根據前述特徵的任何之一而形成或被設 計。或者，本發明的此至少一個多層加強元件可藉著適配 於自行車輪圈的輪圈本體而與自行車輪圈一起使用。 根據本發明的另一方面，相對於自行車輪圏的橫截面 ’傾斜側部區域中的至少一個相對於自行車輪圈的內環狀 側的法線方向（例如，相對於自行車輪圈的外部內表面或 外部側表面中的一個的法線方向）可以用梯級形（ cascade-shaped)或傾斜方式被配置。 根據本發明的另一方面，傾斜側部區域中的至少一個 可位在自行車輪圏的內環狀側的外部側表面處。 根據本發明，提供一種將多層加強元件附著於自行車 輪圈的內環狀側的方法。自行車輪圈的內環狀側包含外部 內表面及（兩個）外部側表面。此方法包含提供至少一個 多層加強元件；將（所提供的）至少一個多層加強元件附 著於外部內表面；將（附著的）至少一個多層加強元件成 形爲相應於外部內表面及/或外部側表面的部份（例如就 適配方面而言）：及用相應地成形的至少一個多層加強元 件包裹外部內表面及/或外部側表面的部份。上述的至少 一個多層加強元件可根據以上及/或以下所述的特徵的任 何之一而形成或被設計。 根據本發明的另一方面，此方法可另外包含將樹脂注 -9- 1374814 入（resinating)或滲透（infiltrating)在成形情況或未成 形（亦即基本）情況中的上述至少一個多層加強元件。用 來將樹脂注入至少一個多層加強元件的材料可爲例如黏著 劑或樹脂狀環氧樹脂。然後’多層加強元件可在環氧樹脂 熟化之後容易地被黏結於自行車輪圈。 根據本發明的另一方面，成形上述至少一個多層加強 元件可另外包含將第一部份相應於自行車輪圈的內環狀側 的外部內表面地彎曲；及將第二及/或第三部份相應於外 部內表面及外部側表面的部份地折疊。 根據本發明，提供一種製造自行車輪圈的方法。此製 造自行車輪圈的方法包含如以上及/或以下所述的至少一 個將至少一個多層加強元件附著於自行車輪圈的製造步驟 ，或使用至少一個多層加強元件，其中此至少一個多層加 強元件可根據以上及/或以下特徵的任何之一而形成或被 設計。 對於熟習此項技術者而言，本發明的上述及其他目的 、特徵、方面、及有利點從以下連同圖式揭示本發明的舉 例說明的例子的詳細敘述會顯明。另外，對於熟習此項技 術者而言很清楚，所揭示的本發明的特性及特徵可任意地 互相組合。 以下會參考形成此原始揭示的一部份的圖式。 【實施方式】 以下參考圖式說明本發明的選定的例子。對於熟習此 -10- 1374814 項技術者而言從此揭示很明顯’以下的本發明的例子的敍 述只是被提供來舉例說明’而非要限制由附隨的申請專利 ·" 範圍所界定的本發明。 首先參考圖la’圖中顯示在附著在自行車輪圈1的內 環狀側11的外部內表面11a及外部側表面llb上之前的傳 統的板形多層加強元件200 (已附著在自行車輪圈1上的傳 統多層加強元件20 0的顯示可見圖lb)。 Φ 傳統的多層加強元件200包含第一（亦即自行車輪圈 側）部份20 1 '第二或中間部份202、及第三（亦即自行車 輻條側或外側）部份203。 第一部份201具體而言爲長方體形狀，且包含自行車 輪圈接觸表面201a’其可例如使用可熟化的樹脂諸如環氧 樹脂以經由黏結及/或膠接而特別是附著於自行車輪圈1的 內環狀側1 1的外部內表面1 1 a » 傳統的多層加強元件200的第二或中間部份202被設置 • 在第一部份201與第三部份203之間。中間部份202只由— ' 個單層疊層組成。另外，中間部份202在其厚度上不改變 其形狀。 傳統的多層加強元件2 00的第三部份203類似於中間部 份202的外部形狀，且也只包含一個單層疊層》 關於圖lb，對於熟習此項技術者而言很明顯，此種多 層加強元件2〇〇的設計（其中中間部份2〇2只由一個單一層 構成）導致淨空空間例如空穴50的存在，或是充其量導致 具有大量黏結材料或樹脂材料例如環氧樹脂的區域（見圖 -11 - 1374814 lb)。換句話說，在各層或部份201、202、203之間而特 別是在各層201、202、203的邊緣區域上有大的淨空空間 50，並且難以用可熟化的黏著劑材料例如樹脂來充塡這些 淨空空間50，或是避免這些淨空空間50。另外，在將傳統 的多層加強元件200附著在自行車輪圈1的相應表面上的期 間，氣體例如空氣被捕捉在這些未充塡的空間50或空穴50 內而在熟化及/或硬化過程期間膨脹，因而造成傳統多層 加強元件200的各層或附著上的缺陷。另外，由於從一層 或媒質（medium )急遽地變遷至相鄰層或媒質，負荷例 如壓縮應力的分佈不利。 現在參考圖2a，以下詳細敘述根據本發明的多層加強 元件100的例子。圖2a所示的本發明的多層加強元件1〇〇 特別是由三個撓性的、可折疊的、且可熟化的部份組成， 亦即第一部份1 0 1、第二或中間部份1 02、及外側或第三部 份 1 0 3 · 爲較佳顯示的目的，本發明的多層加強元件100不會 以與自行車輻條的端部部份（圖la、lb、2a、2b、3中未 顯示）組合的方式被顯示。圖2a的多層加強元件1 〇〇也以 未折疊（基本）情況被顯示，亦即在其被附著或黏著在自 丫了車輪圈1的內環狀側11的外部內表面11a及外部側表面 上（見圖2b及3)之前β 除了中間部份102外，多層加強元件1〇〇的組態幾近相 同於圖la及lb所示的傳統多層加強元件2 〇〇的組態。 中間部份1 02例如經由膠接或黏結而被設置在或夾在 -12- 1374814 第一部份101與第三部份103之間。爲簡潔起見，以下特別 會較爲詳細地敘述及說明多層加強元件100的中間部份1〇2 〇 如從圖2a可最佳地看見的，中間部份102具有角錐台 狀組態，且包含三層l〇2a、102b、及l〇2c。或者，中間部 份102可包含寶塔（浮屠）狀組態。 上述三層102a、102b、及102c的每一層可由重量輕 的材料製成，例如選擇自由複合材料特別是非金屬複合材 料諸如碳纖維及/或玻璃纖維加強的塑膠材料所組成的群 類的材料。 中間部份1 02的角錐台狀組態於中間部份1〇2的厚度方 向（於平面xy的法線方向）包含八個傾斜側部區域120a ' 120b、 120c、 120d 、 120e、 120f、 120g、及 120h，其中 八個傾斜側部區域 120a、120b、120c、120d、120e、120f 、120g、及I20h的每一個形成爲階梯狀。 如在圖2a中可見的，第一層102a類似於第二層l〇2b ，而第二層102b又類似於第三層102c。換句話說，三個 層102a、102b、及102c彼此相似，特別是如圖2a所示相 對於平面xy而言。 第一層102a的另外特徵在於其厚度Dl02a。第二層 102b的另外特徵在於其厚度D102b。第三層102c的另外 特徵在於其厚度D102c。在圖2a所示的多層加強元件100 的例子中，被夾在或設置在第一層l〇2a與第三層i〇2c之 間的第二層1 02 b的厚度D102b大於或者是至少等於第一 -13- 1374814 層102a的厚度D102a及/或第三層l〇2c的厚度D102c。 圖2b以立體橫向剖面圖顯示當附著在自行車輪圈1的 內環狀側11的外部內表面11a及外部側表面lib上時的圖 2a的多層加強元件1〇〇 (未顯示被支撐的自行車輻條）， 並且圖2b另外以放大的立體橫向剖面圖顯示當附著在自 行車輪圈1上時的.層加強元件100的一部份。 如特別是從多層加強元件1 00的放大顯示可見的，由 於中間部份1 02的角錐台狀（亦即多層）組態，當多層加 強元件100附著在自行車輪圏1的內環狀側11的外部內表面 1 la及外部側表面1 lb上時，各別層1 〇2a、102b、102c之 間或於這些層的邊緣區域的淨空空間或空穴50可被維持得 很小，或是在最佳情況中被避免。 因爲多層加強元件10 0在自行車輪圏1上的附著特別是 使用可熟化的樹脂或黏著劑例如環氧樹脂來實現，所以樹 脂可較爲容易地充塡小的淨空空間或空穴50。此也導致與 製造自行車輪圈1相關的缺陷的減少。 另外，可避免損壞或破壞力及應力的集中，並且負荷 從自行車輻條（未顯示）及多層加強元件1 00被平滑地引 導或傳遞至自行車輪圈1的結構內。例如，由於根據本發 明的多層加強元件100的中間部份1〇2的階梯狀且因此改良 的組態’來自外部的施加於自行車的輪胎（未顯示）且因 此施加於自行車輪圈1的衝擊或衝撞負荷以非常平滑的方 式從多層加強元件100進一步傳遞至所支撐的自行車輻條 (未顯示）。 -14- 1374814 各部份101、102、及103的每一個可使用可熟化的黏 著劑例如樹脂而特別是環氧樹脂以經由黏結或膠接而連接 在一起。如果自行車輪圏1是由例如鋁、鎂、鈦、或非金 屬材料例如玻璃纖維及/或碳纖維加強材料製成，則此種 黏著劑適合於用來將多層加強元件100附著於自行車輪圈1 的外部內表面11a及/或外部側表面lib。 如從圖2b可見的，相對於自行車輪圈1的所示的橫截 面，傾斜側部區域120b (並且傾斜側部區域120f也）相 對於外部側表面1 1 b中的一個的法線方向N-N以梯級形方 式被配置。或者，舉例而言，如果中間部份1 02包含角錐 台狀組態，則傾斜側部區域1 20b (並且傾斜側部區域1 20f 也）可相對於外部側表面1 1 b中的一個的法線方向N-N以 傾斜方式被配置。傾斜側部區域120b及120f位在內環狀 側1 1的外部側表面1 1 b處。 現在參考圖3，以下敘述及說明將多層加強元件100附 著在自行車輪圈1的內環狀側11的外部內表面11a及外部 側表面1 1 b的至少部份上的方法或過程的例子。 在圖3的左側以「丨」標示的第一視圖中，多層加強元 件1〇〇被提供且以板狀組態的基本未折疊情況存在。換句 話說，第一部份101的層、中間部份1 02的三層102a、102b ’ l〇2c、及第三部份！ 03的層均爲相當平面狀的形狀。三 個部份101、102、及1〇3形成三明治或夾層狀組態，且由 選擇自由複合材料特別是非金屬纖維加強塑膠材料所組成 的群類的材料製成。 -15- 1374814 其次，可熟化的且/或可硬化的或可回火的（ temperable )黏著劑例如環氧樹脂被施加於多層加強元件 100的第一、中間、及第三部份1〇1、102、及103。或者， 多層加強元件1〇〇可在成形情況中被注入樹脂或以黏著劑 例如樹脂來滲透。 在以「2」標示的視圖處，當多層加強元件100已經朝 向自行車輪圈1移動時，第一部份101的自行車輪圈接觸表 面101a (見圖2a)與自行車輪圈1的內環狀側11的外部內 表面11a的相應區域或部份接觸。換句話說，多層加強元 件100被附著於外部內表面11a。然後，多層加強元件1〇〇 特別是在其外部部份處朝向外部內表面11a及外部側表面 Hb的部份的輪廓相應地成形，亦即被彎曲及折疊。換句 話說’多層加強元件100包裹自行車輪圈1的外部內表面 1 1 a及外部側表面1 1 b的部份的至少一部份，而此部份係 自行車輻條（未顯示）必須藉著多層加強元件1 〇 〇而被附 著及接收者。 在圖3的以「3」標示的視圖處，多層加強元件ι〇0此 時相應地成形及附著於自行車輪圈1的外部內表面lla及 外部側表面lib的部份，並且多層加強元件1〇〇的各層或 部份101' 102、及103中所包含的樹脂仍然必須熟化或硬 化，以將多層加強元件10 0黏結或膠接在自行車輪圈1上。 如上所述’本發明提供例如創新或改良的複合物，亦 即多層加強元件’使得自行車輪圈的特別是強勁度被進一 步增進且負荷傳遞被進一步改善。 -16- 1374814 術語的槪括解讀 在瞭解本發明的範圍時’此處所用的術語「包含j及 其衍生字是指明確界定所述的特徵、元件、組件、群類、 整數、及/或步驟的存在但是不排除其他未述及的特徵、 元件、組件、群類、整數、及/或步驟的存在的開放式術 語。此也適用於具有類似意義的字眼，例如術語「包括」 、「具有」、及其衍生字。並且，術語「部份」在以單數 使用時可具有單一部份或零件或多個部份或零件的雙重意 義。雖然只選擇選定的實施例來舉例說明本發明，但是對 於熟習此項技術者而言從此揭示很明顯，在不離開附隨的 申請專利範圍中所界定的本發明的範圍下，可實施各種不 同的改變及修正。例如，各種不同組件的尺寸、形狀、位 置、或定向可依需要及/或所想要的被改變。顯示成爲互 相直接連接或接觸的組件可有設置在其間的中間結構。一 個元件的功能可由二個元件來實施，反之亦然。本發明的 一個例子的結構及功能可被採用在本發明的另一個例子中 。所有的有利點不須同時呈現在一特別的例子中。與習知 技術不同的每一獨特特徵不論是單獨或與其他特徵組合也 應被視爲申請人的另外發明的分開敘述，包含由此種特徵 所具體實施的結構及/或功能槪念。因此，以上根據本發 明的例子的敘述只是舉例說明用，而非以限制由附隨的申 請專利範圍及其等效物所界定的本發明爲目的。 -17- 1374814 【圖式簡單說明】 圖la爲用來將自行車輻條的端部部份接收在 輪圈上的傳統多層加強元件的立體橫向剖面圖。 圖lb爲圖la的傳統多層加強元件在附著在自 圈的內環狀側的外部內表面及外部側表面上時的立 剖面圖，及圖la的傳統多層加強元件在附著在自 圈上時的一部份的放大的立體橫向剖面圖。 圖2a爲根據本發明的多層加強元件的例子的 向剖面圖。 圖2b爲圖2a的多層加強元件在附著在自行車 內環狀側的外部內表面及外部側表面上時的立體橫 圖，及圖2a的多層加強元件在附著在自行車輪圈 —部份的放大的立體橫向剖面圖》 圖3爲將根據本發明的多層加強元件安裝或附 行車輪圈的外部內表面及外部側表面的至少一部份 立體圖。 【主要元件符號說明】 1 :自行車輪圈 1 1 :內環狀側 1 la :外部內表面 1 1 b :外部側表面 5 0 :空穴，淨空空間 100 :多層加強元件 自行車 行車輪 體橫向 行車輪 立體橫 輪圈的 向剖面 上時的 著於自 的三個 -18- 1374814 1 ο 1 :第一部份 1 Ola :自行車輪圈接觸表面 102 :第二或中間部份 102a :第一層. 1 02b :第二層 102c :第三層 1 〇 3 :外側或第三部份 1 2 0 a :傾斜側部區域 120b :傾斜側部區域 1 2 0 c :傾斜側部區域 1 2 0 d :傾斜側部區域 1 2 0 e :傾斜側部區域 120f :傾斜側部區域 120g :傾斜側部區域 1 2 0 h :傾斜側部區域 2 0 0 :傳統的多層加強元件 2 0 1 :第一（自行車輪圏側）部份 201a:自行車輪圈接觸表面 2 0 2 :第二或中間部份 2 03 :第三（自行車輻條側或外側）部份 D102a :厚度 D102b :厚度 D102c :厚度 N-N :外部側表面的法線方向 -19-BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to bicycle rims, and more particularly to collapsible and curable multi-layer reinforced panels for bicycle rims that are configured or attached A portion of the inner annular side of the bicycle rim to receive and support the end portion of the bicycle spoke. Additionally, the present invention relates to a method of attaching a multi-layer reinforcing panel to a bicycle rim. [Prior Art] In recent years, the development and design of bicycle components has become increasingly important, especially in the field of competitive sports, for example. One component that has been continuously redesigned and improved is the bicycle rim, especially the load transfer position of the bicycle rim or the load transfer assembly for the bicycle rim. A position that is described with the present invention at the bicycle rim is the position from the end portion of the bicycle spoke to the Φ inner annular side of the bicycle rim. Receiving a bicycle at the inner annular side of the bicycle rim • The location or location of the spokes typically represents the area where the load is concentrated. Depending on the position of the wheel rim during riding, the above load is a dynamic version, i.e. a variant. To enhance the structural properties of the bicycle rim, such as stiffness and strength, especially for lightweight, foldable and curable carbon fiber and/or fiberglass reinforcement, while not increasing the total weight of the bicycle rim at the same time The panels or sheets have been introduced and additionally integrated into the bicycle rim structure. In other words, the composite sheet has thus been folded -5-I3748l4 and bonded to the inner annular surface of the bicycle rim for receiving the end portions of the bicycle spokes. Known prior art techniques merely disclose multilayer reinforcing elements such as carbon fiber reinforced panels that use a pattern and a simple shape (e.g., a single layer type), however, the prior art does not disclose the inclusion of, for example, the requirements associated with achieving static and dynamic types of structural requirements. A multilayer reinforcement element or multilayer reinforcement assembly for attaching bicycle spokes to a bicycle rim with a more individual and thus more reliable layer design. SUMMARY OF THE INVENTION In accordance with the present invention, at least one multi-layered reinforcing element for at least a portion of an inner annular side of a bicycle rim is provided. The at least one multi-layer stiffening element comprises an intermediate portion of a frustum of pyramid-like configuration in a basic (i.e., unfolded or non-deformed) condition. Such a multilayer reinforcing element can be used, for example, to receive and/or support at least an end portion of a bicycle spoke. Such a multilayer reinforcing element can, for example, be bonded (via a curable adhesive) to the inner annular side of the bicycle rim. The multi-layered reinforcing element according to the present invention allows, for example, the load to be smoothly guided and to avoid undesired concentration of the load. In addition, due to the design of the multi-layer reinforcing element, in particular the intermediate portion, it is possible to avoid, for example, a space between the portion or surface sheet of the bicycle rim facing the bicycle rim and the outer or outer side surface of the inner annular side of the bicycle rim. hole. Alternatively, the intermediate portion may have a pagoda-shaped configuration or a cascade-shaped configuration. Basic (ie, unfolded or non-deformed) conditions are attached to the bicycle wheel-6- Multilayer reinforcement elements before 1374814. According to an additional or alternative aspect of the invention, at least one multi-layered reinforcing element for at least a portion of the inner annular side of the self-wheel rim is provided. The at least one multilayer reinforcing element comprises an intermediate portion comprising at least two layers. Such multilayer reinforcing elements allow, for example, the design of the reinforcing elements and the guidance of the load to be more individual. In addition, such a multi-layered reinforcing member may, for example, be more easily attached or bonded and adapted to the outer or outer side surface of the inner annular side of the self-wheel rim. According to another additional or alternative aspect of the invention, the truncated cone configuration of the intermediate portion may comprise at least four inclined side regions. In an alternative aspect of the invention, the truncated cone configuration of the intermediate portion may comprise, in particular, eight inclined side regions. This allows, for example, the possibility of a greater adaptation or adjustment of the multilayer reinforcing element relative to the more complex shape of the outer or outer side surface of the inner annular side of the bicycle rim. In other words, the multi-layer stiffening element can be easily adapted to the contour of the bicycle rim. According to another aspect of the invention, at least one of the inclined side regions may be formed in a step shape. This allows, for example, further enhancement of the fitting or assembly of the corresponding inner or outer side surface of the inner annular side of the bicycle rim to the corresponding groove or receiving portion. According to another aspect of the invention, the truncated cone configuration may comprise at least two layers. With such a multi-layer stiffening element configuration, the aspects described above can be achieved. According to another aspect of the invention, at least two of the above layers may be constructed and configured to form a truncated cone configuration. With such a multi-layer stiffening element configuration, the aspects described above can be achieved. 1374814 According to another aspect of the invention, at least two of the above layers may be similar to each other with respect to at least one plane. This allows, for example, the manufacturing process of the multilayer reinforcing member to be simple' and the mounting or bonding of the multilayer reinforcing member on the outer inner surface and the outer side surface portion of the inner annular side of the bicycle rim to be simplified. According to another aspect of the invention, the intermediate portion may comprise at least a third layer. This allows, for example, the use of several layers of different materials, and thus allows for a multi-layered reinforcing element of a more individual pattern. For example, a layer of carbon fiber reinforced material which allows at least three layers in the intermediate portion to allow high-strength properties is sandwiched between two layers of glass fiber reinforced material. According to another aspect of the invention, the thickness of the first layer and/or the thickness of the third layer may be equal to or less than the thickness of the second layer. This allows, for example, multilayer reinforcement elements to have an improved design with respect to structural and geometric requirements (strength, stability, contour similarity, etc.). According to another aspect of the invention, the multilayer reinforcing member may additionally comprise an inner portion and an outer portion. The intermediate portion can be placed or sandwiched between the inner portion and the outer portion. The inner portion and/or the outer portion may each contain at least a layer. According to another aspect of the invention, the inner portion, the outer portion or the intermediate portion of each of the at least two layers of each of the reinforcing elements and/or the plurality of reinforcing elements may be composed of a selected free composite material, particularly a non-metallic fiber reinforced plastic material. The group of materials is made. In other words, the stack of multilayer reinforcing elements can vary in material. The material used may be in the form of a fiber, such as a unidirectional fiber, or may be in the form of a fabric, and may be impregnated or dyed with a curable liquid adhesive such as an epoxy resin (-8-1374814 tinctured). Or saturated. According to the present invention, a bicycle rim is provided. This bicycle rim is made of a rim body and contains at least one multi-layer reinforcing element. The at least one multilayer reinforcing element can be formed or designed in accordance with any of the foregoing features. Alternatively, the at least one multi-layer reinforcing element of the present invention can be used with a bicycle rim by adapting to the rim body of the bicycle rim. According to another aspect of the invention, at least one of the cross-sectional "inclined side regions" relative to the bicycle rim is relative to the normal direction of the inner annular side of the bicycle rim (eg, relative to the exterior of the bicycle rim) The normal direction of one of the surface or outer side surfaces may be configured in a cascade-shaped or inclined manner. According to another aspect of the invention, at least one of the inclined side regions may be located at an outer side surface of the inner annular side of the bicycle rim. According to the present invention, there is provided a method of attaching a plurality of reinforcing elements to an inner annular side of a bicycle rim. The inner annular side of the bicycle rim includes an outer inner surface and (two) outer side surfaces. The method comprises providing at least one multi-layer reinforcing element; attaching (providing) at least one multi-layer reinforcing element to an outer inner surface; shaping (attached) at least one multi-layer reinforcing element to correspond to an outer inner surface and/or an outer side surface The portion (for example in terms of fit): and the portion of the outer inner surface and/or the outer side surface that is wrapped with the correspondingly shaped at least one multi-layer reinforcing element. The at least one multilayer reinforcing element described above may be formed or designed in accordance with any of the features described above and/or below. According to another aspect of the invention, the method may additionally comprise the above-described at least one multi-layered reinforcing element in which the resin is injected or infiltrated in a shaped or unformed (i.e., basic) condition. The material used to inject the resin into the at least one multilayer reinforcing member may be, for example, an adhesive or a resinous epoxy resin. The 'multilayer reinforcing elements can then be easily bonded to the bicycle rim after the epoxy resin is cured. According to another aspect of the invention, forming the at least one multi-layer reinforcing element may additionally comprise bending the first portion corresponding to an outer inner surface of the inner annular side of the bicycle rim; and placing the second and/or third portion The portions are partially folded corresponding to the outer inner surface and the outer side surface. According to the present invention, a method of manufacturing a bicycle rim is provided. The method of making a bicycle rim includes at least one manufacturing step of attaching at least one multi-layer reinforcing element to a bicycle rim as described above and/or below, or using at least one multi-layer reinforcing element, wherein the at least one multi-layer reinforcing element can Formed or designed according to any of the above and/or the following features. The above and other objects, features, aspects and advantages of the present invention will become apparent from the <RTIgt; In addition, it will be apparent to those skilled in the art that the features and characteristics of the disclosed invention can be arbitrarily combined with each other. Reference will now be made to the drawings which form part of this original disclosure. [Embodiment] Selected examples of the present invention will be described below with reference to the drawings. It will be apparent to those skilled in the art from this disclosure that the description of the following examples of the invention is merely provided as an illustration and is not intended to limit the scope defined by the accompanying claims " invention. First, a conventional plate-shaped multi-layer reinforcing member 200 (attached to the bicycle rim 1) attached to the outer inner surface 11a and the outer side surface 11b of the inner annular side 11 of the bicycle rim 1 is shown with reference to FIG. The display of the conventional multilayer reinforcing element 20 0 can be seen in Figure lb). Φ The conventional multi-layer reinforcing member 200 includes a first (i.e., bicycle rim side) portion 20 1 'second or intermediate portion 202, and a third (i.e., bicycle spoke side or outer side) portion 203. The first portion 201 is specifically in the shape of a rectangular parallelepiped and includes a bicycle rim contact surface 201a' which may be attached to the bicycle rim 1 via bonding and/or gluing, for example, using a curable resin such as epoxy. The outer inner surface 1 1 a of the inner annular side 1 1 » the second or intermediate portion 202 of the conventional multilayer reinforcing element 200 is disposed between the first portion 201 and the third portion 203. The intermediate portion 202 consists only of - a single layer stack. In addition, the intermediate portion 202 does not change its shape in its thickness. The third portion 203 of the conventional multilayer reinforcing member 200 is similar to the outer shape of the intermediate portion 202 and also includes only a single layer. Referring to Figure lb, it will be apparent to those skilled in the art that such multiple layers The design of the reinforcing element 2 (where the intermediate portion 2〇2 consists of only a single layer) results in the presence of a clearance space, such as a void 50, or at best a region having a large amount of bonding material or resin material such as epoxy resin ( See Figure -11 - 1374814 lb). In other words, there is a large clearance space 50 between the layers or portions 201, 202, 203, and particularly at the edge regions of the layers 201, 202, 203, and it is difficult to charge with a curable adhesive material such as resin.塡 These clearance spaces 50, or avoid these clearance spaces 50. In addition, during attachment of the conventional multi-layered reinforcing elements 200 to the respective surfaces of the bicycle rim 1, gases such as air are trapped in these unfilled spaces 50 or cavities 50 during the curing and/or hardening process. The expansion causes defects in the various layers or attachment of the conventional multilayer reinforcing member 200. In addition, the load such as the distribution of compressive stress is unfavorable due to the rapid transition from a layer or medium to an adjacent layer or medium. Referring now to Figure 2a, an example of a multilayer reinforcing element 100 in accordance with the present invention is described in detail below. The multilayer reinforcing element 1 of the invention shown in Figure 2a consists in particular of three flexible, foldable, and aging parts, i.e. the first part 1 0 1 , the second or the middle part Parts 102, and the outer side or the third part 1 0 3 · For the purpose of better display, the multilayer reinforcing element 100 of the present invention does not end with the end portion of the bicycle spoke (Fig. la, lb, 2a, 2b, The way in which the combination is not shown in 3 is displayed. The multilayer reinforcing element 1 of Fig. 2a is also shown in an unfolded (basic) condition, i.e., it is attached or adhered to the outer inner surface 11a and the outer side surface of the inner annular side 11 from which the wheel ring 1 is self-locked. Before (see Figures 2b and 3) before β, except for the intermediate portion 102, the configuration of the multilayer reinforcing element 1 is nearly identical to the configuration of the conventional multilayer reinforcing element 2 图 shown in Figures la and lb. The intermediate portion 102 is disposed or sandwiched between the first portion 101 and the third portion 103 of -12-1374814, for example, by gluing or bonding. For the sake of brevity, the intermediate portion 1 2 of the multilayer reinforcing element 100 will be described and illustrated in more detail below, as best seen in Figure 2a, the intermediate portion 102 having a truncated cone configuration, and It consists of three layers l〇2a, 102b, and l〇2c. Alternatively, the intermediate portion 102 can comprise a pagoda configuration. Each of the above three layers 102a, 102b, and 102c may be made of a lightweight material such as a group of materials selected from the group consisting of free composite materials, particularly non-metallic composite materials such as carbon fiber and/or glass fiber reinforced plastic materials. The pyramidal shape of the intermediate portion 102 is configured in the thickness direction of the intermediate portion 1〇2 (in the normal direction of the plane xy) to include eight inclined side regions 120a' 120b, 120c, 120d, 120e, 120f, 120g And 120h, wherein each of the eight inclined side regions 120a, 120b, 120c, 120d, 120e, 120f, 120g, and I20h is formed in a step shape. As can be seen in Figure 2a, the first layer 102a is similar to the second layer 102b, which in turn is similar to the third layer 102c. In other words, the three layers 102a, 102b, and 102c are similar to each other, particularly as shown in Fig. 2a with respect to the plane xy. The first layer 102a is additionally characterized by its thickness D102a. An additional feature of the second layer 102b is its thickness D102b. An additional feature of the third layer 102c is its thickness D102c. In the example of the multilayer reinforcing element 100 shown in Figure 2a, the thickness D102b of the second layer 102b, which is sandwiched or disposed between the first layer 102a and the third layer i2c, is greater than or at least equal to The first to the 13- 1374814 layer 102a has a thickness D102a and/or a third layer l2cc thickness D102c. Figure 2b shows the multi-layered reinforcing element 1 of Figure 2a when attached to the outer inner surface 11a and the outer side surface lib of the inner annular side 11 of the bicycle rim 1 in a perspective transverse sectional view (the bicycle is not shown supported) Spokes), and Figure 2b additionally shows a portion of the layer stiffening element 100 when attached to the bicycle rim 1 in an enlarged perspective transverse cross-sectional view. As can be seen in particular from the enlarged display of the multilayer reinforcing element 100, the multilayer reinforcing element 100 is attached to the inner annular side 11 of the bicycle rim 1 due to the truncated cone-shaped (i.e. multi-layer) configuration of the intermediate portion 102. When the outer inner surface 1 la and the outer side surface 1 lb are on, the clearance space or the cavity 50 between the respective layers 1 〇 2a, 102b, 102c or in the edge regions of the layers can be maintained small, or It is avoided in the best case. Since the adhesion of the multi-layered reinforcing member 100 to the bicycle rim 1 is particularly achieved by using a curable resin or an adhesive such as an epoxy resin, the resin can easily fill a small clearance space or cavity 50. This also leads to a reduction in the drawbacks associated with the manufacture of the bicycle rim 1. In addition, damage or destructive force and concentration of stress can be avoided, and the load is smoothly guided or transmitted from the bicycle spokes (not shown) and the multi-layer reinforcing member 100 to the structure of the bicycle rim 1. For example, due to the stepped and thus improved configuration of the intermediate portion 1 2 of the multilayer reinforcing element 100 according to the invention, the impact from the external tire (not shown) applied to the bicycle and thus to the bicycle rim 1 Or the impact load is further transmitted from the multilayer reinforcing element 100 to the supported bicycle spokes (not shown) in a very smooth manner. -14- 1374814 Each of the portions 101, 102, and 103 may be joined together by bonding or bonding using a curable adhesive such as a resin, particularly an epoxy resin. If the bicycle rim 1 is made of, for example, aluminum, magnesium, titanium, or a non-metallic material such as fiberglass and/or carbon fiber reinforced material, such an adhesive is suitable for attaching the multilayer reinforcing member 100 to the bicycle rim 1 The outer inner surface 11a and/or the outer side surface lib. As can be seen from Fig. 2b, with respect to the illustrated cross section of the bicycle rim 1, the inclined side region 120b (and the inclined side region 120f also) is relative to the normal direction NN of one of the outer side surfaces 1 1 b It is configured in a stepped manner. Or, for example, if the intermediate portion 102 includes a truncated cone configuration, the inclined side region 1 20b (and the inclined side region 1 20f also) may be relative to one of the outer side surfaces 1 1 b The line direction NN is configured in an inclined manner. The inclined side portions 120b and 120f are located at the outer side surface 1 1 b of the inner annular side 1 1 . Referring now to Figure 3, an example of a method or process for attaching a multi-layered reinforcing member 100 to at least a portion of the outer inner surface 11a and the outer side surface 11b of the inner annular side 11 of the bicycle rim 1 will be described and illustrated below. In the first view, indicated by "丨" on the left side of Fig. 3, the multi-layer reinforcing element 1 is provided and exists in a substantially unfolded condition in a plate configuration. In other words, the first part 101, the middle part 102, the three layers 102a, 102b' l〇2c, and the third part! The layers of 03 are all relatively flat shapes. The three sections 101, 102, and 1〇3 form a sandwich or sandwich configuration and are made of a material selected from the group consisting of free composite materials, particularly non-metallic fiber reinforced plastic materials. -15- 1374814 Next, a temperable adhesive such as an epoxy resin which is curable and/or hardenable is applied to the first, middle, and third portions of the multilayer reinforcing member 100. , 102, and 103. Alternatively, the multilayer reinforcing member 1 may be injected into the resin in the case of molding or infiltrated with an adhesive such as a resin. At the view indicated by "2", when the multi-layer reinforcing member 100 has moved toward the bicycle rim 1, the bicycle rim contact surface 101a of the first portion 101 (see Fig. 2a) and the inner ring of the bicycle rim 1 The corresponding area or portion of the outer inner surface 11a of the side 11 is in contact. In other words, the multilayer reinforcing member 100 is attached to the outer inner surface 11a. Then, the multi-layered reinforcing member 1 is formed correspondingly, in particular, at its outer portion toward the outer inner surface 11a and the outer side surface Hb, that is, bent and folded. In other words, the 'multilayer reinforcing member 100 wraps at least a portion of the outer inner surface 1 1 a of the bicycle rim 1 and the outer side surface 1 1 b, and this portion is a bicycle spoke (not shown) must be used The multilayer reinforcing element 1 is attached and received. At the view indicated by "3" in Fig. 3, the multi-layer reinforcing member ι〇0 is accordingly formed and attached to the outer outer surface 11a and the outer side surface lib of the bicycle rim 1, and the multi-layer reinforcing member 1 The resin contained in each layer or portion 101' 102, and 103 of the crucible must still be cured or hardened to bond or glue the multilayer reinforcing member 100 to the bicycle rim 1. As described above, the present invention provides, for example, an innovative or improved composite, i.e., a multi-layer reinforcing member, such that the particular strength of the bicycle rim is further enhanced and load transfer is further improved. -16- 1374814 TERMS AND CONDITIONS OF THE TERMS OF THE INVENTION As used herein, the term "including j and its derivatives" is used to mean clearly defining the features, elements, components, groups, integers, and/or The existence of steps, but does not exclude the open terms of other features, elements, components, groups, integers, and/or steps that are not mentioned. This also applies to words with similar meanings, such as the terms "including" and " Has "," and its derivatives. Also, the term "portion" when used in the singular can have the dual meaning of a single part or a part or multiple parts or parts. While only the selected embodiments have been chosen to exemplify the invention, it will be apparent to those skilled in the art that the invention can be practiced without departing from the scope of the invention as defined in the appended claims. Changes and corrections. For example, the size, shape, location, or orientation of the various components can be varied as desired and/or desired. Components that are shown to be directly connected or in contact with each other may have an intermediate structure disposed therebetween. The function of one component can be implemented by two components and vice versa. The structure and function of an example of the present invention can be employed in another example of the present invention. All the advantages are not necessarily presented in a particular example at the same time. Each distinct feature that is different from the prior art, whether alone or in combination with other features, should also be considered as a separate description of the applicant's additional invention, including structural and/or functional connotations embodied by such features. Therefore, the above description of the examples in accordance with the present invention is intended to be illustrative only and not to limit the invention as defined by the scope of the appended claims. -17- 1374814 BRIEF DESCRIPTION OF THE DRAWINGS Figure la is a perspective transverse cross-sectional view of a conventional multilayer reinforcing member for receiving an end portion of a bicycle spoke on a rim. Figure lb is a vertical sectional view of the conventional multilayer reinforcing member of Figure la when attached to the outer inner surface and the outer side surface of the inner annular side of the ring, and the conventional multilayer reinforcing member of Figure la is attached to the self-loop A magnified three-dimensional transverse section of a portion. Fig. 2a is a cross-sectional view showing an example of a multilayer reinforcing member according to the present invention. Figure 2b is a perspective view of the multi-layered reinforcing member of Figure 2a attached to the outer inner surface and the outer side surface of the annular side of the bicycle, and the multi-layer reinforcing member of Figure 2a attached to the bicycle rim - part of the enlargement 3D transverse cross-sectional view FIG. 3 is a perspective view of at least a portion of an outer inner surface and an outer side surface of a multi-layer reinforcing element mounting or attaching a wheel rim according to the present invention. [Description of main components] 1 : Bicycle rim 1 1 : Inner annular side 1 la : External inner surface 1 1 b : External side surface 5 0 : Hole, clearance space 100: Multi-layer reinforcing element bicycle row wheel body lateral line The three-dimensional -18- 1374814 1 o 1 : 1st part 1 Ola: bicycle rim contact surface 102: second or intermediate part 102a: first layer 1 02b : second layer 102c : third layer 1 〇 3 : outer side or third portion 1 2 0 a : inclined side region 120b : inclined side region 1 2 0 c : inclined side region 1 2 0 d : inclined side portion 1 2 0 e : inclined side portion 120f: inclined side portion 120g: inclined side portion 1 2 0 h : inclined side portion 2 0 0 : conventional multilayer reinforcing member 2 0 1 : first (bicycle rim side) portion 201a: bicycle rim contact surface 2 0 2 : second or intermediate portion 2 03 : third (bicycle spoke side or outer side) portion D102a : thickness D102b : thickness D102c : thickness NN : Normal direction of the outer side surface-19-