200946368 九、發明說明 【發明所屬之技術領域】 本發明相關於具有增進的穩定性及強勁度（stiffness )的重量輕的自行車輪圈。更明確地說，本發日月手目II於_具^ 有一對環狀側部的加強的重量輕的自行車輪圈，其Φ每-個環狀側部包含第一分立（discrete)側壁及與第一分立 側壁間隔開的第二分立側壁。第一分立側壁及第二分立側 〇 壁二者均由非金屬材料例如纖維加強的複合材料製成。 【先前技術】 自行車車輪被不斷地重新設計以求強勁、重量輕、在 設計上更符合空氣動力學、以及製造及組裝簡單。目前在 市面上有許多不同類型的自行車車輪。大部份的已知的一 般自行車車輪具有輪轂、多個輻條、及環狀自行車輪圈。 自行車車輪的輪轂附著於自行車的車架的附著部份用 © 以相對旋轉。輻條的內端部耦接於輪轂且從輪轂向外延伸 。自行車車輪的環狀自行車輪圈經由內環狀部份而耦接於 輻條的外端部，且具有用來在上面支撐及接收輪胎的外環 狀部份。 已曾有數種嘗試想要來產生重量輕而又充分地強固或 強勁的自行車輪圈。此種自行車輪圈的一個已知例子爲由 碳纖維及/或玻璃纖維加強的材料製成的管形自行車輪圈 。從習知技術也已知有由此種複合材料製成的另外的重量 輕的自行車輪圈設計。 -4- 200946368 例如’法國專利文件第290458 1號（Salomon S.A.) 揭示由複合材料構成的自行車輪圈，其包含兩個加強壁， 而此兩個加強壁被膠接或結合在一起成爲使得二者重疊。 重疊膠接的加強壁形成自行車輪圈用來接收輪胎的上方部 "份’及用來接收輻條的下方部份，以及側壁。加強壁由非 '金屬材料組成，例如纖維與環氧樹脂的複合物。 美國專利申請案第2 005/00623 3 7A1號揭示一種自行 φ 車輪圈，其特別是由具有五疊編織碳纖維的第一主層、於 輻條附著部份的由三疊構成的附加層、及由一疊編織碳纖 維構成的折疊的第二主層組成。上述諸層在橫截面視圖中 繞自行車輪圈延伸，並且兩束單向纖維在第一及第二主層 內沿著圓周方向延伸，以增加自行車輪圈的強勁度。另外 ，此美國專利申請案揭示具有多個加強元件的有複雜橫截 面的自行車輪圈。這些加強元件是由不同的組件層組成。 習知技術中已知的自行車輪圈具有相當大的尺寸，以 〇 符合必要的穩定性及強勁度的結構需求。另外，這些自行 車輪圈的製造及組裝過程相當複雜及耗時。 因此，對於具有例如特別是在側壁的增加的剛性、具 有增進的空氣動力特性、且製造較爲簡單的創新或改良的 重量輕的自行車輪圈有需求。 本發明滿足此技術領域中的此需求以及其他需求，此 對於熟習此項技術者而言從此揭示會很明顯。 【發明內容】 -5- 200946368 本發明提供一種自行車輪圏，其包含外環狀 環狀部份。外環狀部份可接收輪胎，而內環狀部 至少一個輻條。自行車輪圈另外包含一對環狀側 環狀側部耦接於外環狀部份及內環狀部份。此對 中的至少一個或一個環狀側部包含至少一個第一 部份及至少一個第二分立側壁部份。此至少一個 側壁部份與上述至少一個第一分立側壁部份間隔 φ 發明的一個例子中，自行車輪圈包含一對環狀側 一個環狀側部具有兩個分開或分立的側壁或側壁 即彼此間隔開的第一分立側壁部份及第二分立側 第一分立側壁部份及第二分立側壁部份的此種配 明治或夾層狀的組態，其大幅增加根據本發明的 圈的例如剪切強勁度、彎曲強勁度、且因而增加; 根據本發明的另一方面，該對環狀側部中的 一個可包含至少一個第一分立側壁部份、及與此 Ο 第一分立側壁部份間隔開的至少一個第二分立側 換句話說，該對環狀側部的每一個可包含如以上 述的第一分立側壁部份及第二分立側壁部份。此 對稱的自行車輪圈設計，且因而導致增加的強勁 的製造過程。另外，以此種設計，可例如避免與 振動負荷有關的不利質量分佈。 關於本發明的另一方面，自行車輪圏可另外 一個中間部份。此至少一個中間部份可被至少設 的至少一個第一分立側壁部份與至少一個第二分 部份及內 份可接收 部。此對 環狀側部 分立側壁 第二分立 開。在本 部，而每 部份，亦 壁部份。 置形成三 自行車輪 醫定性。 至少另外 至少一個 壁部份。 及以下所 導致例如 度及簡化 旋轉力及 包含至少 置在上述 立側壁部 -6 - 200946368 份之間。根據本發明的一個例子，一個第一分立側壁部份 、一個中間部份、與一個第二分立側壁部份可被配置成夾 層狀組態。 根據本發明的另一方面，上述的至少—個第一分立側 壁部份及/或至少一個第二分立側壁部份可由不同材料構 成。另外或是或者，上述的至少一個第一分立側壁部份及 /或至少一個第二分立側壁部份可由與上述的至少一個中 〇 間部份不同的材料構成。換句話說，第一分立側壁部份可 例如由與第二分立側壁部份及中間部份二者均不同的材料 製成。或者，第一分立側壁部份及第二分立側壁部份可由 相同材料製成’而此相同材料與中間部份的材料不同。 根據本發明的另一方面’上述的至少一個第一分立側 壁部份及/或至少一個第二分立側壁部份可由非金屬材料 製成。例如’非金屬材料可選擇自由纖維加強的複合材料 所組成的群類。非金屬材料可爲黏著劑例如環氧樹脂與玻 Ο 璃纖維及/或碳纖維或編織材料的複合物。此種材料具有 例如低密度’但是高的強勁度及韌性（tenacity )。 根據本發明的另一方面，上述的至少一個中間部份可 至少部份地包含一空穴且/或可由非金屬材料例如發泡材 料製成。如果中間部份是由例如高阻發泡材料例如可熟化 塑膠製成’則彎曲強勁度及剪切強勁度可在只是餘量地增 加（marginal increase)自行車輪圈的總重量之下進—步 大幅地增加。 根據本發明的另一方面，上述的至少一個第一分立側 200946368 壁部份及至少一個第二分立側壁部份可由相同材料製成， 特別是由相同的非金屬材料製成。此種設計可由於避免自 行車輪圏上的質量不平衡而避免例如在騎車期間使騎車者 有不舒服的振動負荷。 根據本發明的另一方面，上述的至少一個中間部份可 由選擇自由發泡材料例如聚苯乙稀（polystyrene)、聚丙 稀（polypropylene)、聚氯乙嫌（polyvinyl chloride)、 φ 酚塑膠（phenoplastics )、聚氨基甲酸乙酯（p〇lyUrethane )等所組成的群類的材料製成。 根據本發明的另一方面，上述的至少一個第一分立側 壁部份及/或至少一個中間部份及/或至少一個第二分立側 壁部份可於自行車輪圈的圓周方向整個地延伸。此;容許例 如小型或緊湊的設計以及進一步增進的結構特性。或者， 第一分立側壁部份及/或第二分立側壁部份及/或中間部份 可於自行車輪圈的圓周方向至少部份地延伸，亦g卩於些 φ 部份延伸。 根據本發明的另一方面，外環狀部份可包含第―金屬 外壁及第二金屬外壁、以及至少一個中間金屬壁。此至少 一個中間金屬壁可被設置在第一-金屬外壁與第二金龎外辟 之間。第一金屬外壁及/或第二金屬外壁的材料可爲例如 銘、鎂、鈦、鋼等或其合金或組合。 根據本發明的另一方面，發泡材料及/或—空穴可被 設置在第一金屬外壁與上述的至少一個中間金屬壁之間， 及/或在第二金屬外壁與上述的至少一個中間金屬壁之間 -8- 200946368 。此導致例如根據本發明的自行車輪圈有進一步增進的強 勁度及穩定性。 對於熟習此項技術者而言，本發明的這些及其他目的 、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。 H 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 項技術者而言從此揭示很明顯，以下的本發明的例子的敘 述只是被提供來舉例說明，而非要限制由附隨的申請專利 範圍及其等效物所界定的本發明。 圖1顯示根據本發明的第一例子的前車輪（圖1中未 Φ 顯示）的自行車輪圈1的放大橫向剖面圖。雖然圖1中只 顯示前車輪的自行車輪圈1，但是本發明可以用相同方式 應用於前車輪及後車輪二者。 自行車輪圈1基本上是由纖維加強的塑膠材料製成， 例如在此技術領域中已知的那些材料。較佳地，自行車輪 圈1是由碳纖維加強的塑膠材料製成，但是不限於碳纖維 。也可應用玻璃纖維材料及/或任何其他合適的纖維材料 或這些材料的組合。 自行車輪圈1包含外環狀部份2。外環狀部份2可在 -9- 200946368 其上面接收輪胎（圖1中未顯示）。自行車輪圏1另外包 含內環狀部份3，其可經由至少一個輻條附著部份8而接 收至少一個輻條（圖1中未顯示）。圖1所示的輻條附著 部份8形成爲輻條附著開口，亦即孔。 一對環狀側部4耦接於外環狀部份2及內環狀部份3 。圖1所示的自行車輪圈1相對於中心平面p對稱。 該對環狀側部4的每一個環狀側部4包含形成環狀側 Ο 部4的外周邊表面5a的第一分立（亦即分開的）非金屬 側壁部份5、及第二分立（亦即分開的）非金屬側壁部份 6 °第二分立非金屬側壁部份6與第一分立非金屬側壁部 份5間隔開而形成三明治或夾層狀組態。 第一分立非金屬側壁部份5及第二分立非金屬側壁部 份6較佳地由相同材料製成。 在圖1所示的例子中’用於第一分立非金屬側壁部份 5及第二分立非金屬側壁部份6的材料可選擇自由纖維加 © 強材料例如碳纖維與膠接材料例如環氧樹脂的組合所組成 的群類。纖維可被設置成爲數疊或數層單向纖維或編織材 料。 第一分立非金屬側壁部份5及間隔開的第二分立非金 屬側壁部份6的平均厚度D5及D6可在從〇.4mm (毫米） 至1.5 mm (毫米）的範圍內。在圖1所示的自行車輪圈i 的例子中，平均厚度D5及D6爲大約〇.6mm。 第一分立非金屬側壁部份5在通至外環狀部份2之處 在其外周邊表面5 a上包含制動部份或制動表面9。制動部 -10- 200946368 份9可包含在外周邊表面5a處的由金 成的另外一層。換句話說，制動部份9 分立非金屬側壁部份5內部及/或在第 部份5的外周邊表面5a上的另一制動層 該對環狀側部4的每一個另外包含 部份7被至少設置在第一分立非金屬側 立非金屬側壁部份6之間。 © 或者，該對環狀側部4的每一個可 立側壁部份5、6及多於一個設置在分Ϊ 間的中間部份7。 較佳地，中間部份7是由選擇自由 基甲酸乙醋（polyurethane )、聚苯乙 、聚丙嫌（polypropylene )、聚氯 chloride )、及酌塑膠（phenoplastics : 材料製成。或者，中間部份7可至少部 ❹ 氣體，如同空氣。在自行車輪圈1的另 份7可爲由第一分立非金屬側壁部份5 側壁部份6封閉的分立空·間，且實質」 或液體及/或固體材料。 中間部份7的平均厚度D7可在從 範圍內。在圖1所示的自行車輪圈1的 D7爲大約2.0mm。 第一分立非金屬側壁部份5、第二 份6、及中間部份7於自行車輪圈1的 屬或非金屬材料製 可包含層疊在第一 一分立非金屬側壁 Γ 〇 中間部份7。中間 壁部份5與第二分 包含多於一個的分 Z：側壁部份5、6之 發泡材料例如聚氨 烯(polystyrene ) 乙稀（polyvinyl >所組成的群類的 份地包含一空穴或 一例子中，中間部 及第二分立非金屬 匕無任何的氣體及/ 1.5mm 至 2.5mm 的 例子中，平均厚度 分立非金屬側壁部 圓周方向整個地延 -11 - 200946368 伸。 在圖1所示的自行車輪圏1的例子中，中間部份7從 內環狀部份3的附近延伸至外環狀部份2的附近。或者， 取決於自行車輪圈1的必要結構需求，例如剪切強勁度、 彎曲強勁度、總重量、質量慣性矩等，中間部份7於徑向 方向的此種延伸可縮短。 如上所述，本發明藉由該對環狀側部4的設計而提供 〇 創新改良的管狀自行車輪圈1。由於中間部份7被夾在第 一分立側壁部份5與第二分立側壁部份6之間的態樣，自 行車輪圈1的剛性（亦即強勁度）在只是餘量地增加自行 車輪圈1的總重量之下進一步增加。 另外或是或者，如上所述的環狀側部4的夾層狀結構 可被應用於外環狀部份2，以進一步增進自行車輪圈1於 外環狀部份2的剛性。 圖2顯示根據本發明的第二例子的前車輪（圖2中未 〇 顯示）的自行車輪圈21的放大橫向剖面圖。雖然圖2中 只顯示前車輪的自行車輪圈21，但是本發明可以用相同方 式應用於前車輪及後車輪二者。 自行車輪圈21爲複合式自行車輪圈21，其包含實質 金屬部份22及實質非金屬部份23、24、29。 在圖2所示的自行車輪圏21的第二例子中，外環狀 部份22形成實質金屬部份22且可在其上面接收輪胎（圖 2中未顯示）。藉著例如膠接而附著於外環狀部份22的內 環狀部份23、成對的環狀側部24、及上壁部份29形成實 -12- 200946368 質非金屬部份23、24、29。 外環狀部份22可由任何合適的金屬材料製成，例如 鋁、鎂、鈦、鋼等或其合金或組合。 如已經敘述的，非金屬部份23、24、29包含一對環 狀側部24’其實質上是由例如在此技術領域中已知的纖維 加強的塑膠材料及膠接材料製成。較佳地，用於該對環狀 側部24的纖維材料是選擇自由碳、玻璃、或芳醯胺（ ❾ aramid)纖維或其組合所組成的群類。 自行車輪圈21的非金屬部份23、24、29如已經敘述 的另外包含內環狀部份23，其可經由至少一個輻條附著部 份28而接收至少一個輻條（圖2中未顯示）。圖2所示 的輻條附著部份2 8形成爲輻條附著開口，亦即孔。 該對環狀側部24耦接於外環狀部份22及內環狀部份 23。圖2所示的自行車輪圈21相對於中心平面P’對稱。 圖2所示的自行車輪圏21的該對環狀側部24包含與 φ 圖1所示的自行車輪圈1的該對環狀側部4幾近相同的特 徵，但是不具有制動部份或制動表面9(見圖1)。 該對環狀側部24的每一個包含形成該對環狀側部24 的外周邊表面25a的第一分立非金屬側壁部份25、及第二 分立非金屬側壁部份26。 如相關於圖1所示的自行車輪圈1的例子所述的，第 二分立非金屬側壁部份2 6與第一分立非金屬側壁部份2 5 間隔開而形成三明治或夾層狀組態。 分立非金屬側壁部份2 5及2 6可由如已經相關於自行 -13- 200946368 車輪圈1的第一例子的分立側壁部份5及6所述的材料製 成。分立非金屬側壁部份25及26的平均厚度D25及D26 在此例子中爲大約0.8 mm，但是不限於此數値。 類似於圖1的自行車輪圈1的例子，該對環狀側部24 的每一個另外包含中間部份27。中間部份27被設置在第 一分立非金屬側壁部份25與第二分立非金屬側壁部份26 之間。 φ 中間部份27可由如已經相關於自行車輪圏〗的第一 例子的中間部份7所述的材料製成，或是形成爲如已經相 關於自行車輪圈1的第一例子的中間部份7所述的。中間 部份27的平均厚度D27在此例子中爲大約2.5mm。 第一分立非金屬側壁部份2 5、第二分立非金屬側壁部 份26、及中間部份27於自行車輪圈21的圓周方向整個地 延伸。 在此例子中，中間部份27從內環狀部份23的附近延 © 伸至非金屬上壁部份29的附近。或者，取決於自行車輪 圈21的必要結構需求’例如剪切強勁度、彎曲強勁度、 總重量、質量慣性矩等’中間部份2 7於徑向方向的此種 延伸可縮短。 外環狀部份22包含中間金屬壁22a (亦即上方金屬壁 22a)、第一金屬外壁22b、及第二金屬外壁22b。外環狀 部份22另外包含另一中間金屬壁22c (亦即下方金屬壁 22c)、及另一中間金屬壁22d (亦即內部金屬壁22d)。 內部金屬壁22d在上方金屬壁22a與下方金屬壁22c -14- 200946368 之間延伸’因而形成另外的中間部份30。另外的中間部份 30可包含至少一個空穴及/或被非金屬材料充塡，例如以 上所述的發泡材料，以進一步增加自行車輪圈21的結構 性質。 金屬側壁（外壁）22b在其外周邊處包含制動部份 22e或制動表面22e，用來與制動塊（圖2中未顯示）接BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lightweight bicycle rim having improved stability and stiffness. More specifically, the present invention has a reinforced outer bicycle rim having a pair of annular side portions, the Φ each of the annular side portions including a first discrete side wall and a second discrete sidewall spaced from the first discrete sidewall. Both the first discrete side wall and the second discrete side wall are made of a non-metallic material such as a fiber reinforced composite. [Prior Art] Bicycle wheels are constantly being redesigned for strength, light weight, aerodynamic design, and ease of manufacture and assembly. There are many different types of bicycle wheels currently on the market. Most of the known conventional bicycle wheels have a hub, a plurality of spokes, and an annular bicycle rim. The hub of the bicycle wheel is attached to the attachment portion of the bicycle frame for relative rotation. The inner end of the spoke is coupled to the hub and extends outwardly from the hub. The annular bicycle rim of the bicycle wheel is coupled to the outer end of the spoke via an inner annular portion and has an outer annular portion for supporting and receiving the tire thereon. There have been several attempts to produce bicycle rims that are lightweight and sufficiently strong or strong. A known example of such a bicycle rim is a tubular bicycle rim made of carbon fiber and/or fiberglass reinforced material. Additional lightweight bicycle rim designs made from such composite materials are also known from the prior art. -4- 200946368 For example, 'French Patent Document No. 290458 1 (Salomon SA) discloses a bicycle rim composed of a composite material, which comprises two reinforcing walls, and the two reinforcing walls are glued or bonded together to make two Overlapping. The overlapping glued reinforcing walls form a bicycle rim for receiving the upper portion of the tire "part' and the lower portion for receiving the spokes, and the side walls. The reinforcing walls are composed of non-metallic materials such as a composite of fibers and epoxy. U.S. Patent Application Serial No. 2 005/00623, which is incorporated herein by reference in its entire entire entire entire entire entire entire entire entire entire entire entire entire A stack of woven carbon fibers consisting of a folded second main layer. The layers extend around the bicycle rim in cross-sectional view and the two bundles of unidirectional fibers extend circumferentially within the first and second main layers to increase the strength of the bicycle rim. In addition, this U.S. Patent Application discloses a bicycle rim having a complex cross section with a plurality of reinforcing elements. These reinforcing elements are composed of different component layers. Bicycle rims known in the prior art are of considerable size to meet the necessary stability and robust structural requirements. In addition, the manufacturing and assembly process of these self-propelled wheel circles is quite complicated and time consuming. Accordingly, there is a need for lightweight bicycle rims having increased rigidity, such as in particular sidewalls, enhanced aerodynamics, and relatively simple innovations or improvements. The present invention satisfies this need in the art as well as other needs, which will become apparent to those skilled in the art from this disclosure. SUMMARY OF THE INVENTION -5-200946368 The present invention provides a bicycle rim comprising an outer annular ring portion. The outer annular portion receives the tire and the inner annular portion has at least one spoke. The bicycle rim additionally includes a pair of annular side annular side portions coupled to the outer annular portion and the inner annular portion. At least one or one of the annular sides of the pair includes at least one first portion and at least one second discrete sidewall portion. The at least one side wall portion is spaced apart from the at least one first discrete side wall portion. In one example of the invention, the bicycle rim includes a pair of annular sides and an annular side portion having two separate or discrete side walls or side walls, ie, each other Such a compounded or sandwiched configuration of the first discrete side wall portion and the second discrete side first discrete side wall portion and the second discrete side wall portion of the second discrete side, which substantially increases the length of the ring according to the present invention, for example Cutting strength, bending strength, and thus increasing; according to another aspect of the invention, one of the pair of annular sides may include at least one first discrete sidewall portion, and the first discrete sidewall portion The spaced apart at least one second discrete side. In other words, each of the pair of annular sides may include a first discrete sidewall portion and a second discrete sidewall portion as described above. This symmetrical bicycle rim design, and thus resulting in an increased robust manufacturing process. In addition, with such a design, for example, an unfavorable mass distribution associated with the vibration load can be avoided. In another aspect of the invention, the bicycle rim can have another intermediate portion. The at least one intermediate portion can be provided with at least one first discrete sidewall portion and at least one second partial portion and an inner receivable portion. The pair of annular side discrete sidewalls are second separated. In this part, and each part is also a wall part. Set up three bicycle wheels to be medically determined. At least another wall portion. And the following causes, for example, a degree of simplification of the rotational force and includes at least between the above-mentioned vertical side wall portions -6 - 200946368 parts. According to one embodiment of the invention, a first discrete sidewall portion, an intermediate portion, and a second discrete sidewall portion can be configured in a sandwich configuration. According to another aspect of the invention, the at least one first discrete side wall portion and/or the at least one second discrete side wall portion may be constructed of different materials. Additionally or alternatively, the at least one first discrete sidewall portion and/or the at least one second discrete sidewall portion may be constructed of a different material than the at least one intermediate portion of the foregoing. In other words, the first discrete sidewall portion can be made, for example, of a material that is different from both the second discrete sidewall portion and the intermediate portion. Alternatively, the first discrete sidewall portion and the second discrete sidewall portion may be made of the same material' and the same material is different from the material of the intermediate portion. According to another aspect of the invention, the at least one first discrete side wall portion and/or the at least one second discrete side wall portion may be made of a non-metallic material. For example, 'non-metallic materials can be selected from the group consisting of free fiber reinforced composites. The non-metallic material may be a composite of an adhesive such as epoxy resin and glass fiber and/or carbon fiber or woven material. Such materials have, for example, low density 'but high strength and tenacity. According to another aspect of the invention, at least one of the intermediate portions may comprise at least a portion of a void and/or may be made of a non-metallic material such as a foamed material. If the intermediate portion is made of, for example, a high-resistance foamed material such as a curable plastic, then the bending strength and shear strength can be increased under the total weight of the bicycle rim. Significantly increased. According to another aspect of the invention, the at least one first discrete side 200946368 wall portion and the at least one second discrete side wall portion may be made of the same material, particularly of the same non-metallic material. Such a design can avoid uncomfortable vibration loads for the rider, for example during cycling, by avoiding mass imbalances on the self-propelled wheel rim. According to another aspect of the invention, the at least one intermediate portion may be selected from a free foaming material such as polystyrene, polypropylene, polyvinyl chloride, φ phenol plastic (phenoplastics). ), a material of a group consisting of p〇lyUrethane or the like. According to another aspect of the invention, the at least one first discrete side wall portion and/or at least one intermediate portion and/or the at least one second discrete side wall portion may extend entirely in the circumferential direction of the bicycle rim. This allows for, for example, a small or compact design and further enhanced structural characteristics. Alternatively, the first discrete side wall portion and/or the second discrete side wall portion and/or the intermediate portion may extend at least partially in the circumferential direction of the bicycle rim, and also extend over the φ portions. According to another aspect of the invention, the outer annular portion may include a first metal outer wall and a second metal outer wall, and at least one intermediate metal wall. The at least one intermediate metal wall may be disposed between the first-metal outer wall and the second metal dome. The material of the first metal outer wall and/or the second metal outer wall may be, for example, ingot, magnesium, titanium, steel, or the like, or an alloy or combination thereof. According to another aspect of the invention, the foaming material and/or the void may be disposed between the first metal outer wall and the at least one intermediate metal wall, and/or between the second metal outer wall and the at least one of the foregoing Between metal walls -8- 200946368. This results in, for example, a bicycle rim according to the present invention having further enhanced stiffness and stability. These 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 present invention disclosed may be arbitrarily combined with each other. H Reference will be made to the drawings that form part of this original disclosure. [Embodiment] Selected examples of the present invention will be described below with reference to the drawings. It is apparent to those skilled in the art that the present invention is not limited by the scope of the accompanying claims and the equivalents thereof. 1 shows an enlarged transverse cross-sectional view of a bicycle rim 1 of a front wheel (not shown in FIG. 1) in accordance with a first example of the present invention. Although only the bicycle rim 1 of the front wheel is shown in Fig. 1, the present invention can be applied to both the front wheel and the rear wheel in the same manner. Bicycle rim 1 is basically made of a fiber reinforced plastic material such as those known in the art. Preferably, the bicycle rim 1 is made of a carbon fiber reinforced plastic material, but is not limited to carbon fiber. Fiberglass materials and/or any other suitable fibrous material or combinations of these materials may also be employed. The bicycle rim 1 includes an outer annular portion 2. The outer annular portion 2 can receive the tire thereon (not shown in Fig. 1) on -9-200946368. The bicycle rim 1 additionally includes an inner annular portion 3 that receives at least one spoke (not shown in Figure 1) via at least one spoke attachment portion 8. The spoke attachment portion 8 shown in Fig. 1 is formed as a spoke attachment opening, that is, a hole. A pair of annular side portions 4 are coupled to the outer annular portion 2 and the inner annular portion 3. The bicycle rim 1 shown in Fig. 1 is symmetrical with respect to the center plane p. Each of the annular side portions 4 of the pair of annular side portions 4 includes a first discrete (i.e., separate) non-metallic side wall portion 5 forming the outer peripheral surface 5a of the annular side portion 4, and a second discrete portion ( That is, the separate non-metallic sidewall portion 6° of the second discrete non-metallic sidewall portion 6 is spaced apart from the first discrete non-metallic sidewall portion 5 to form a sandwich or sandwich configuration. The first discrete non-metallic sidewall portion 5 and the second discrete non-metallic sidewall portion 6 are preferably made of the same material. In the example shown in Fig. 1, the material for the first discrete non-metallic sidewall portion 5 and the second discrete non-metallic sidewall portion 6 may be selected from free fiber plus strong materials such as carbon fibers and bonding materials such as epoxy resins. The group consisting of the combination. The fibers can be arranged in a stack or layers of unidirectional fibers or woven materials. The average thickness D5 and D6 of the first discrete non-metallic sidewall portion 5 and the spaced apart second discrete non-metallic sidewall portions 6 may range from 〇.4 mm (mm) to 1.5 mm (mm). In the example of the bicycle rim i shown in Fig. 1, the average thicknesses D5 and D6 are about 〇6 mm. The first discrete non-metallic side wall portion 5 includes a braking portion or braking surface 9 on its outer peripheral surface 5a at its exit to the outer annular portion 2. Brake section -10-200946368 Part 9 may include another layer of gold at the outer peripheral surface 5a. In other words, the brake portion 9 separates the interior of the non-metallic side wall portion 5 and/or another brake layer on the outer peripheral surface 5a of the first portion 5, and each of the pair of annular side portions 4 additionally includes a portion 7 It is disposed at least between the first discrete non-metallic side non-metallic sidewall portions 6. © Alternatively, each of the pair of annular side portions 4 can define a side wall portion 5, 6 and more than one intermediate portion 7 disposed between the branches. Preferably, the intermediate portion 7 is made of selected radicals of polyurethane, polystyrene, polypropylene, polychlorinated chloride, and phenoplastics: or intermediate parts. 7 may be at least part of the gas, like air. The other part 7 of the bicycle rim 1 may be a separate space, and substantially or liquid and/or closed by the side wall portion 6 of the first discrete non-metallic side wall portion 5. Solid material. The average thickness D7 of the intermediate portion 7 can be in the range. The D7 of the bicycle rim 1 shown in Fig. 1 is about 2.0 mm. The first discrete non-metallic side wall portion 5, the second portion 6, and The intermediate portion 7 may be comprised of a genus or non-metallic material of the bicycle rim 1 that is laminated to the first discrete non-metallic side wall Γ intermediate portion 7. The intermediate wall portion 5 and the second portion contain more than one sub-Z : a foaming material of the side wall portions 5, 6 such as polystyrene (polystyrene), the group of the group consisting of a hole or an example, the middle portion and the second discrete non-metal ruthenium Any gas and /1.5mm to 2.5mm example In the example of the bicycle rim 1 shown in Fig. 1, the intermediate portion 7 extends from the vicinity of the inner annular portion 3 to the outer portion. In the vicinity of the annular portion 2. Or, depending on the necessary structural requirements of the bicycle rim 1, such as shear strength, bending strength, total weight, mass moment of inertia, etc., the intermediate portion 7 is in the radial direction The extension can be shortened. As described above, the present invention provides an innovative and improved tubular bicycle rim 1 by the design of the pair of annular side portions 4. Since the intermediate portion 7 is sandwiched between the first discrete side wall portions 5 and Between the two discrete side wall portions 6, the rigidity (i.e., the strength) of the bicycle rim 1 is further increased by merely increasing the total weight of the bicycle rim 1. Further or alternatively, as described above The sandwich structure of the annular side portion 4 can be applied to the outer annular portion 2 to further enhance the rigidity of the bicycle rim 1 at the outer annular portion 2. Fig. 2 shows the front of the second example according to the present invention. Wheel (not shown in Figure 2) An enlarged transverse cross-sectional view of the row of wheel rims 21. Although only the bicycle rim 21 of the front wheel is shown in Fig. 2, the invention can be applied to both the front and rear wheels in the same manner. The bicycle rim 21 is a composite bicycle wheel The ring 21 includes a substantial metal portion 22 and substantially non-metallic portions 23, 24, 29. In the second example of the bicycle rim 21 shown in Figure 2, the outer annular portion 22 forms a substantial metal portion 22 And a tire can be received thereon (not shown in Fig. 2). The inner annular portion 23, the pair of annular side portions 24, and the upper wall portion are attached to the outer annular portion 22 by, for example, gluing. Part 29 forms -12-200946368 non-metallic parts 23, 24, 29. The outer annular portion 22 can be made of any suitable metallic material, such as aluminum, magnesium, titanium, steel, or the like, or alloys or combinations thereof. As already described, the non-metallic portions 23, 24, 29 comprise a pair of annular side portions 24' which are substantially made of a fiber reinforced plastic material and a bonding material such as are known in the art. Preferably, the fibrous material for the pair of annular side portions 24 is selected from the group consisting of free carbon, glass, or ❾ aramid fibers or combinations thereof. The non-metallic portions 23, 24, 29 of the bicycle rim 21, as already described, additionally comprise an inner annular portion 23 which receives at least one spoke (not shown in Figure 2) via at least one spoke attachment portion 28. The spoke attachment portion 28 shown in Fig. 2 is formed as a spoke attachment opening, that is, a hole. The pair of annular side portions 24 are coupled to the outer annular portion 22 and the inner annular portion 23. The bicycle rim 21 shown in Fig. 2 is symmetrical with respect to the center plane P'. The pair of annular side portions 24 of the bicycle rim 21 shown in Fig. 2 contain nearly the same features as the pair of annular side portions 4 of the bicycle rim 1 shown in Fig. 1, but without the brake portion or Brake surface 9 (see Figure 1). Each of the pair of annular side portions 24 includes a first discrete non-metallic sidewall portion 25 that forms an outer peripheral surface 25a of the pair of annular side portions 24, and a second discrete non-metallic sidewall portion 26. As described in connection with the example of bicycle rim 1 shown in Figure 1, the second discrete non-metallic sidewall portion 26 is spaced apart from the first discrete non-metallic sidewall portion 25 to form a sandwich or sandwich configuration. The discrete non-metallic side wall portions 2 5 and 26 can be made of materials as described for the discrete side wall portions 5 and 6 of the first example of the wheel rim 1 of the self-13-200946368. The average thicknesses D25 and D26 of the discrete non-metallic sidewall portions 25 and 26 are about 0.8 mm in this example, but are not limited to this number. Similar to the example of bicycle rim 1 of FIG. 1, each of the pair of annular sides 24 additionally includes an intermediate portion 27. The intermediate portion 27 is disposed between the first discrete non-metallic sidewall portion 25 and the second discrete non-metallic sidewall portion 26. The intermediate portion 27 of φ may be made of a material as described in the intermediate portion 7 of the first example relating to the bicycle rim, or formed as an intermediate portion of the first example already associated with the bicycle rim 1. 7 stated. The average thickness D27 of the intermediate portion 27 is about 2.5 mm in this example. The first discrete non-metallic side wall portion 25, the second discrete non-metallic side wall portion 26, and the intermediate portion 27 extend entirely in the circumferential direction of the bicycle rim 21. In this example, the intermediate portion 27 extends from the vicinity of the inner annular portion 23 to the vicinity of the non-metallic upper wall portion 29. Alternatively, such extension of the intermediate portion 27 in the radial direction may be shortened depending on the necessary structural requirements of the bicycle rim 21, such as shear strength, bending strength, total weight, mass moment of inertia, and the like. The outer annular portion 22 includes an intermediate metal wall 22a (i.e., an upper metal wall 22a), a first metal outer wall 22b, and a second metal outer wall 22b. The outer annular portion 22 additionally includes another intermediate metal wall 22c (i.e., the lower metal wall 22c) and another intermediate metal wall 22d (i.e., the inner metal wall 22d). The inner metal wall 22d extends between the upper metal wall 22a and the lower metal wall 22c-14-200946368' thus forming an additional intermediate portion 30. The additional intermediate portion 30 may comprise at least one void and/or be filled with a non-metallic material, such as the foamed material described above, to further increase the structural properties of the bicycle rim 21. The metal side wall (outer wall) 22b includes a braking portion 22e or a braking surface 22e at its outer periphery for connection with the brake block (not shown in Fig. 2).
Mrm 觸。 0 金屬側壁22b的制動表面22e可爲例如經過處理的表 面’例如硬化表面，或是可爲在金屬側壁22b的外周邊上 的另一塗覆層。 如上所述，本發明提供創新改良的複合式自行車輪圈 21，其具有藉著兩個分立側壁部份25及26來加強的一對 環狀側部24，使得自行車輪圈2 1的強勁度被進一步增加 〇 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」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 -15- 200946368 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 0 。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。 【圖式簡單說明】 φ 圖1爲根據本發明的第一例子的前車輪的自行車輪圈 的放大橫向剖面圖。 圖2爲根據本發明的第二例子的前車輪的自行車輪圈 的放大橫向剖面圖。 【主要元件符號說明】 1 :自行車輪圈 2 :外環狀部份 3 :內環狀部份 -16- 200946368 4 :環狀側部 5 :第一分立非金屬側壁部份 5 a :外周邊表面 6 :第二分立非金屬側壁部份 _ 7 :中間部份 8 :輻條附著部份 9 :制動部份或制動表面 ❹ 2 1 :自行車輪圈 22 :實質金屬部份，外環狀部份 22a:中間金屬壁，上方金屬壁 22b :第一及第二金屬外壁，金屬側壁 22c:中間金屬壁，下方金屬壁 22d:中間金屬壁，內部金屬壁 22e :制動部份，制動表面 23 :實質非金屬部份，內環狀部份 〇 24 :實質非金屬部份，環狀側部 25 :第一分立非金屬側壁部份 25a :外周邊表面 26 :第二分立非金屬側壁部份 27 :中間部份 28 :輻條附著部份 29 :實質非金屬部份，上壁部份 3 0 :中間部份 D5 :平均厚度 -17- 200946368 D6 :平均厚度 D7 :平均厚度 D25 :平均厚度 D26 :平均厚度 D27 :平均厚度 P :中心平面 P ’ ：中心平面 ❹Mrm touched. The braking surface 22e of the metal sidewall 22b can be, for example, a treated surface such as a hardened surface, or can be another coating on the outer periphery of the metal sidewall 22b. As described above, the present invention provides an innovative and improved composite bicycle rim 21 having a pair of annular side portions 24 reinforced by two discrete side wall portions 25 and 26 such that the bicycle rim 21 is strong The term "comprising" and its derivatives, as used herein, are used to clearly define the features, elements, components, groups, integers, and/or. The existence of steps does not exclude open terms that are not present in the features, elements, components, groups, integers, and/or steps. This also applies to words with similar meanings, such as the terms "including", "having", and their derivatives. And the term "part" may have the dual meaning of a single part or a part or parts or parts when used in the singular. While only the selected embodiments have been chosen to exemplify the invention, it will be apparent to those skilled in the art from this disclosure, which is apparent from the scope of the invention as defined in the appended claims. Various changes and modifications can be implemented. 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. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an enlarged transverse cross-sectional view of a bicycle rim of a front wheel according to a first example of the present invention. Figure 2 is an enlarged transverse cross-sectional view of a bicycle rim of a front wheel in accordance with a second example of the present invention. [Main component symbol description] 1 : Bicycle rim 2 : Outer ring portion 3 : Inner ring portion -16 - 200946368 4 : Annular side portion 5 : First discrete non-metallic side wall portion 5 a : Outer periphery Surface 6: second discrete non-metallic sidewall portion _ 7 : intermediate portion 8 : spoke attachment portion 9 : brake portion or braking surface ❹ 2 1 : bicycle rim 22 : substantial metal portion, outer annular portion 22a: intermediate metal wall, upper metal wall 22b: first and second metal outer walls, metal side wall 22c: intermediate metal wall, lower metal wall 22d: intermediate metal wall, inner metal wall 22e: braking portion, braking surface 23: substantial Non-metallic portion, inner annular portion 〇24: substantially non-metallic portion, annular side portion 25: first discrete non-metallic sidewall portion 25a: outer peripheral surface 26: second discrete non-metallic sidewall portion 27: Middle part 28: spoke attachment part 29: substantially non-metallic part, upper wall part 3 0: middle part D5: average thickness -17- 200946368 D6: average thickness D7: average thickness D25: average thickness D26: average Thickness D27: average thickness P: center plane P ': center plane ❹
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