M441580 五、新型說明： 【新型所屬的技術領域】 本新型是關於可安裝於自行車用輪圈的自行車用管胎 '以及具備有自行車用管胎的自行車用輪圈組裝體。 【先前技術】 自行車用輪胎，尤其在公路賽車，使用管胎，該管胎 • 在管狀部一體形成有接地部（胎面）。當將具有接地部的 管胎安裝於輪圈時，以往是藉由黏接劑或雙面膠帶將管胎 接合於輪圈。藉此，讓管胎在周方向不易移動。 【新型內容】 [新型欲解決的課題] 當將管胎接合於輪圈時，進行洩氣且進行管胎裝卸時 ’需要進行：已接合的管胎從輪圈的剝離、以及對新的管 % 胎再塗佈黏接劑或再貼上雙面膠帶。因此，在藉由接合來 固定於輪圈的習知的管胎，無法容易且迅速地將管胎裝卸 〇 本新型的課題，要使自行車用管胎能容易且迅速地裝 卸於輪圈。 [用以解決課題的手段] 第1新型的自行車用管胎，是可安裝於自行車用輪圈 的自行車用管胎。自行車用管胎，具備有：管胎主體、接 -3- M441580 地部、及第一卡合部。接地部，設置於管胎主體的外周部 。複數的第一卡合部，在周方向隔著間隔而設置在管胎主 體的內周部，而可卡合於輪圈。 在該自行車用管胎，在輪胎主體的內周部在周方向隔 著間隔設置有第一卡合部。使該第一卡合部卡合於輪圈而 將管胎安裝於輪圈。藉此，相對於輪圈能限制管胎的周方 向的移動。而藉由讓空氣進入管胎的內部，則能限制管胎 的直徑方向的移動。這裡只要使第一卡合部卡合於輪圏， 則讓管胎在周方向不易移動。因此，不需要使管胎接合於 輪圈，能容易且迅速地將管胎裝卸於輪圏。 第2新型的自行車用管胎，在第1新型記載的自行車 用管胎其中，第一卡合部爲突起部。在該情況，藉由以突 起部構成第一卡合部，則能利用在輪圈的輪胎安裝面設置 的輻絲用的管接頭的安裝孔。因此，不需要在輪圈設置卡 合於第一卡合部的專用的卡合構造。 第3新型的自行車用管胎，在第2新型記載的自行車 用管胎其中，突起部爲銷部。在該情況，可利用管接頭的 安裝孔的方式來配置銷部，則能更容易進行管胎的裝卸。 第4新型的自行車用管胎，在第2新型記載的自行車 用管胎其中，第一卡合部，具有彈性卡止部。在該情況， 將第一卡合部彈性卡止於輪圈，所以第一卡合部不易從輪 圈脫落。 第5新型的自行車用管胎，在第2新型記載的自行車 用管胎其中，第一卡合部，具有卡止部。在該情況，將第 -4- M441580 一卡合部卡止於輪圈’所以第一卡合部不易從輪圏脫落。 第6新型的自行車用管胎’在第2新型記載的自行車 用管胎其中’第一卡合部，具有固定部，該固定部固定於 管胎主體的內周面。在該情況，將第一卡合部固定於管胎 主體的內周面，所以第一卡合部不易從管胎主體脫落。 第7新型的自行車用管胎，在第6新型記載的自行車 用管胎其中，管胎主體’在管胎主體的內周部具有基座層 φ 。藉由基座層將固定部固定。在該情況，由於藉由管胎主 體的基座層固定’所以能堅固地將固定部固定於管胎主體 〇 第8新型的自行車用管胎’在第丨新型記載的自行車 用管胎其中’第一卡合部’與管胎主體一體形成。在該情 況，由於將第一卡合部與管胎主體一體形成，所以能簡化 管胎的構造- 第9新型的自行車用輪圈組裝體，具備有自行車用輪 φ 圏、管胎；自行車用輪圈，在其外周部具有管胎安裝部。 管胎’具備有：管胎主體、在管胎主體的外周部設置的接 地部、及複數的第一卡合部。複數的第一卡合部，在周方 向隔著間隔而設置在管胎主體的內周部，卡合於管胎安裝 部。 在該自行車用輪圈組裝體，在管胎主體的內周部於周 方向隔著間隔設置有第一卡合部。使該第一卡合部卡合於 管胎安裝部而將管胎安裝於輪圈。藉此，相對於輪圏能限 制管胎的周方向的移動。而藉由讓空氣進入管胎的內部， -5- M441580 則能限制管胎的直徑方向的移動。這裡只要使第一卡合部 卡合於管胎安裝部，則讓管胎在周方向不易移動。因此， 不需要使管胎接合於輪圈，能容易且迅速地將管胎裝卸於 輪圈。 第10新型的自行車用輪圏組裝體，在第9新型記載 的自行車用輪圏組裝體其中，管胎安裝部，具有：在周方 向隔著間隔設置，與第一卡合部卡合的複數的第二卡合部 。在該情況，藉由使第一卡合部卡合於第二卡合部，讓管 胎於輪圈的周方向不易移動。 第1 1新型的自行車用輪圏組裝體，在第1 〇新型記載 的自行車用輪圈組裝體其中，第一卡合部爲突起部，第二 卡合部爲與突起部卡合的孔部。在該情況，藉由使突起部 卡合於孔部，讓管胎於輪圈的周方向不易移動。 第1 2新型的自行車用輪圈組裝體，在第1 1新型記載 的自行車用輪圈組裝體其中，孔部爲在管胎安裝部設置的 輻絲插入孔。在該情況，能利用輻絲插入孔卡合第一卡合 部，所以除了輻絲插入孔之外不需要設置第二卡合部，讓 輪圈的構造簡化。 第13新型的自行車用輪圏組裝體，在第11新型記載 的自行車用輪圏組裝體其中，突起部爲銷部。在該情況， 藉由使銷部卡合於孔部，則能簡單地使第一卡合部卡合於 第二卡合部。 第14新型的自行車用輪圈組裝體，在第11新型記載 的自行車用輪圈組裝體其中，第一卡合部，具有彈性卡止 -6- M441580 部。在該情況，將第一卡合部彈性卡止於輪圏，所以第一 卡合部不易從輪圈脫落。 第15新型的自行車用輪圈組裝體，在第11新型記載 的自行車用輪圈組裝體其中，第一卡合部，具有卡止部。 在該情況，將％ —卡合部卡止於輪圈*所以第一卡合部不 易從輪圈脫落。 ' 第16新型的自行車用輪圈組裝體，在第9新型記載 φ 的自行車用輪圏組裝體其中，第一卡合部，具有固定部， 該固定部固定於管胎主體的內周面。在該情況，將第一卡 合部固定於管胎主體的內周面，所以第一卡合部不易從管 胎主體脫落。 第17新型的自行車用輪圏組裝體，在第16新型記載 的自行車用輪圏組裝體其中，管胎主體，在管胎主體的內 周部具有基座層。藉由基座層將固定部固定。在該情況， 由於藉由管胎主體的基座層固定，所以能堅固地將固定部 φ 固定於管胎主體。 第18新型的自行車用輪圈組裝體，在第9新型記載 的自行車用輪圈組裝體其中，第一卡合部，與管胎主體一 體形成。在該情況，由於將第一卡合部與管胎主體一體形 成’所以能簡化管胎的構造。 [新型效果] 藉由本新型，只要使第一卡合部卡合於輪圈，則讓管 胎在周方向不易移動。因此，不需要使管胎接合於輪圈， M441580 能容易且迅速地將管胎裝卸於輪圈。 【實施方式】 如第1圖所示，採用本新型的第一實施方式的自行車 用輪胎（以下記載爲輪胎）10，具備有：位於中心的輪轂 1 2、在輪轂1 2的外周側配置的自行車用輪圈組裝體（以 下記載爲輪圏組裝體）1 4、以及將輪轂1 2與輪圈組裝體 14連結的複數條（例如24條）輻絲1 6。輪轂12，具有前 輪轂或後輪轂的功能，在兩端外周部具有用來卡止輻絲16 的輪轂凸緣12a。輪轂12，爲容易裝卸的快拆式輪轂。 <輪圈組裝體> 輪圈組裝體14，具備有：自行車用輪圈（以下記載爲 輪圈）20、以及自行車用管胎（以下記載爲管胎）22。 <輪圈> 輪圈2 0 ’例如至少一部分爲鋁合金製、聚醯胺纖維強 化樹脂製、或碳纖維強化樹脂製的中空構造。輪圈20，如 第2圖所示，具有：朝向內周前端變細的兩個側部20 a、 以及將側部20a的外周部連接的管胎安裝部20b。側部 20a的內周側，爲滑順地彎曲而被連結。兩個側部20a形 成爲左右對稱。側部20a的內周側的連結部分形成爲較其 他部分更厚。管胎安裝部2 Ob，剖面觀察在內周側形成爲 凸出地彎曲。管胎安裝部20b，形成爲較側部20a更厚。 M441580 管胎安裝部20b，具有：在周方向隔著間隔的複數（例如 24個）的輻絲插入孔20c。輻絲插入孔20c，是將輻絲16 安裝於輪圈20時所使用。輻絲插入孔20c，爲第二卡合部 的一個例子。在任兩個輻絲插入孔2〇C之間，在第1圖所 示’設置有：用來將例如VFR型的輪胎氣門21插入的未 圖示的氣門插入孔。輪圈20，具有：在側部20a的內周側 的連結部分設置的複數（例如24個）的輻絲安裝孔20d。 φ 在輻絲安裝孔20d，卡止著管接頭17，該管接頭1 7旋入 於輻絲1 6的前端。複數的輻絲安裝孔20d，在第一實施方 式，形成爲朝左右任方向交互地稍微傾斜。而輻絲安裝孔 20d，也可不傾斜而朝向輪圈20的中心形成。 <管胎> 管胎22，具備有：管胎主體24、接地部26、及複數 (例如24個）的第一卡合部28。管胎主體24，具有：彈 φ 性體製的管部24a、將管部24a的外周部覆蓋的合成樹脂 製的殻體24b、以及在管部24a的內周部設置的基座層 24c。管部24a，內部成爲氣密構造，在內周側的一處部位 設置有朝直徑方向內側突出的輪胎氣門21 (參考第1圖） 。殼體24b，是設置用來保護管部24a。殼體24b，其緣部 接觸於第一卡合部28的兩側。基座層24c，設置成環狀， 是設置用來將管部24a補強。在基座層2k的安裝部分， 管部24a，具有：用來安裝第一卡合部28之複數的固定凹 部24d。固定凹部24d，是在周方向隔著間隔形成。而管 M441580 胎主體24，具有：用來將第一卡合部28固定的固定外 24e。固定外罩2 4e，在管部24a的固定凹部24d的形成 分，以在基座層24c的內周面形成的固定凹部24f來夾 第一卡合部28的方式’而被黏接於殼體24b及第一卡 部28。固定外罩24e的內周面，接觸於輪圈20的管胎 裝部20b。固定外罩2k，具有讓第一卡合部28貫穿的 穿孔24g。固定外罩24e，用來將第一卡合部28固定而 置成環狀。藉此，也將殼體2 4b的抵接於第一卡合部 的緣部固定。 接地部26，是以較管部24a更硬質且更厚的彈性體 。接地部26，是接觸於行駛路面的部分。接地部26， 熔融黏接於殻體24b的外周面。 複數的第一卡合部28，是例如聚醯胺樹脂、聚醯亞 樹脂、聚縮醛等的硬質的合成樹脂製。複數的第一卡合 28，卡合於輪圈20的管胎安裝部20b。具體來說，複數 第一卡合部28，分別具有：與輻絲插入孔20c卡合的突 部28a、以及在管胎主體24的內周部固定的固定部28b 突起部28a，較固定部28b更小直徑，從固定部28b的 周部朝向輪圈20的中心突出。突起部28a，是圓柱狀的 部28c，卡合於輻絲插入孔20c。在第一實施方式，銷 28c，是以例如鬆配合方式嵌合於輻絲插入孔20c。銷 28c，貫穿固定外罩24e而朝直徑方向內側突出。固定 28b，形成爲大於銷部28c。固定部28b，收納於固定凹 24d。固定部28b的外周部及側部，例如黏接於固定凹 罩 部 持 合 安 貫 設 28 製 是 胺 部 的 起 〇 內 銷 部 部 部 部 部 -10- M441580 24d。固定凹部2以的內周面’黏接於固定外罩24e ° <管胎的裝卸順序> 在該構造的輪胎10的輪圏組裝體14，當將管胎22安 裝於輪圏時，將已排出空氣的管胎22安裝在輪圈20的管 胎安裝部20b。此時，將輪胎氣門21插入到氣門插入孔。 將第--^合部28的突起部28a插入到輻絲插入孔20c而 卡合。藉此，管胎22的朝周方向的移動會藉由突起部28a 朝輻絲插入孔20c的卡合所限制。在該狀態藉由空氣泵浦 將壓縮空氣供給到輪胎氣門2 1。藉此限制管胎22朝直徑 方向的移動，則將管胎22安裝於輪圈。 另一方面’當要將管胎22從輪圈20卸下時，則將輪 胎氣門2 1鬆開將管部24a內的壓縮空氣排出。這樣—來 ’則管胎22可朝直徑方向移動。藉此，則能將第一卡合 部28的突起部28a從輻絲插入孔2〇c卸下。從輻絲插入 孔2〇c將突起部28a卸下，並且從氣門插入孔將輪胎氣門 2 1卸下’則能簡單地將管胎2 2從輪圏2 0卸下。 這裡只要將第一卡合部28卡合於輪圈2〇的第二卡合 部也就是輻絲插入孔20c’則讓管胎在周方向不易移動。 因此’不需要將管胎接合於輪圈，能容易且迅速地將管胎 裝卸於輪圈。 〈第二實施方式> 114的 在第二實施方式’如第3圖所示，輪圈組裝體 -11 - M441580 管胎122的第一卡合部128的構造與第一實施方式不同。 第——^合部128的突起部128a，是與輻絲插入孔2〇c彈性 卡止的彈性卡止部l28c。在以下的實施方式，針對與第— 實施方式相同構造的構件，則將與第一實施方式相同的圖 號加在圖面，而省略其說明。 突起部128a的彈性卡止部128c，是例如聚醯胺樹脂 、聚醯亞胺.樹脂、聚縮醛等的具有彈性的硬質的合成樹脂 製。彈性卡止部1 2 8 c，具有：在朝向輪圈2 0的中心的中 心線周圍隔著間隔配置的複數的彈性片 1 2 8 d。彈性片 1 28d，其從輻絲插入孔20c突出的部分，在輻絲插入孔 20c的直徑方向外側彎曲形成爲剖面觀察爲凸起型。將彈 性片的輪圈2 0的直徑方向外側的彎曲部1 2 8 e配置在輻絲 插入孔20c的內周側的緣部，來防止彈性卡止部128c脫 落。當要將管胎1 2 2卸下時，讓彈性卡止部1 2 8 c朝中心 線C側彈性變形而可通過輻絲插入孔20c。固定部228b ’ 爲與第一實施方式同樣的構造。 在第二實施方式，由於防止突起部128a脫落，所以 管胎122更不易脫落。 <第三實施方式> 在第三實施方式，如第4圖所示，輪圈組裝體214的 管胎222的第一卡合部22 8的構造與第一及第二實施方式 不同。第一卡合部228的突起部228a，是與固定部228b —體形成的例如合成橡膠等的彈性體製的卡止部228c。 -12- M441580 突起部22 8a的卡止部228c的前端部，是較通過輻絲 插入孔20c的部分更大直徑，其前端面圓化成例如球狀。 將卡止部228c的擴徑的部分228e配置在輻絲插入孔20c 的內周側的緣部而防止卡止部228c脫落。當將管胎122 卸下時，使卡止部228c彈性變形而可通過輻絲插入孔20c 〇 在第三實施方式，由於防止突起部22 8a脫落，所以 管胎222更不易脫落。 <第四實施方式> 在第四實施方式，如第5圖所示，第一卡合部32 8與 管胎主體324的管部3 24a —體形成。在第四實施方式， 與第一卡合部328的突起部328a的卡止部328c相當的部 分是與第三實施方式爲相同構造。可是，由於第一卡合部 3 2 8與管部3 24a —體形成，所以在管胎主體324，並未設 φ 置有固定凹部、固定外罩。在第一卡合部328並未設置有 固定部。 在第四實施方式，由於防止突起部328a脫落，所以 管胎3 22更不易脫落。 由於管部3 24a與第一卡合部32 8 —體形成，所以讓 管胎3 2 2的構造簡化。 <其他實施方式> 以上雖然針對本新型的一種實施方式來說明，而本新 -13- M441580 型並不限定於上述實施方式，在不脫離新型的主旨的範圍 可進行各種變更。尤其在本說明書記載的複數的實施方式 及變形例可因應需要任意組合。 (a )在上述實施方式，雖然舉例輻絲插入孔作爲第 二卡合部’而本新型不限於此。例如，在輪圈藉由與輻絲 插入孔不同的卡合用所設的貫穿孔，來構成第二卡合部。 (b) 在第三實施方式，雖然將管部與第一卡合部形 成爲一體’而將殻體與第一卡合部形成爲一體也可以。 (c) 在上述實施方式，雖然舉例在內部具有空間的 輪圏’而不具有空間的輪圈也適用本新型。在該情況，由 於沒有輻絲插入孔，所以在與輻絲插入孔不同所設置的第 二卡合部卡合第一卡合部即可。而在輻絲的數量少於輻絲 安裝孔的數量的情況，將第一卡合部卡合於多餘的輻絲安 裝孔也可以。 (d) 在上述實施方式，雖然在作爲第二卡合部的全 部輻絲插入孔來卡合第一卡合部，而本新型不限於此。第 一卡合部卡合於至少兩個第二卡合部也可以。 【圖式簡單說明】 第1圖爲採用本新型的第一實施方式的自行車用輪圈 組裝體之自行車用輪胎的側視圖。 第2圖爲第1圖的切斷線II-ii的剖面放大圖。 第3圖爲第二實施方式的與第2圖相當的圖面。 第4圖爲第三實施方式的與第2圖相當的圖面。 -14- M441580 第5圖爲第四實施方式的與第2圖相當的圖面。 【主要元件符號說明】 1 4 :輪圈組裝體 20:自行車用輪圏 2 0b :管胎安裝部 2 0 c : 絲插入孔M441580 V. New type of description: [Technical field to which the new type belongs] The present invention relates to a bicycle tube tire that can be attached to a bicycle wheel and a bicycle wheel assembly that includes a bicycle tube tire. [Prior Art] Bicycle tires, particularly in road racing cars, use a tubular tire, which is integrally formed with a ground portion (tread) in the tubular portion. When a tube tire having a ground portion is attached to the rim, the tube tire has conventionally been joined to the rim by an adhesive or a double-sided tape. Thereby, the tube tire is not easily moved in the circumferential direction. [New content] [New problem to be solved] When the tube is joined to the rim, when it is deflated and the tube is being loaded and unloaded, 'requires: the peeling of the joined tube from the rim, and the new tube % Reapply the adhesive to the tire or apply double-sided tape. Therefore, in the conventional tube which is fixed to the rim by joining, the tube can not be easily and quickly attached and detached, and the bicycle tube can be easily and quickly attached to and detached from the rim. [Means for Solving the Problem] The bicycle tire for the first type of the bicycle is a bicycle tube tire that can be attached to a bicycle rim. The bicycle tube tire includes a tube tire main body, a 3-5 M441580 ground portion, and a first engagement portion. The grounding portion is provided on the outer peripheral portion of the tubular body. The plurality of first engaging portions are provided on the inner peripheral portion of the tubular main body at intervals in the circumferential direction, and are engageable with the rim. In the bicycle tube tire, a first engagement portion is provided at an inner circumferential portion of the tire main body at intervals in the circumferential direction. The first engaging portion is engaged with the rim to attach the tubular tire to the rim. Thereby, the movement of the tubular tire in the circumferential direction can be restricted with respect to the rim. By allowing air to enter the inside of the tubular tire, the movement of the tubular tire in the radial direction can be restricted. Here, as long as the first engaging portion is engaged with the rim, the tubular tire is less likely to move in the circumferential direction. Therefore, it is not necessary to join the tube to the rim, and the tube can be easily and quickly attached to the rim. In the tubular tire for bicycle according to the first aspect of the invention, the first engaging portion is a protruding portion. In this case, by forming the first engaging portion by the protruding portion, the mounting hole of the pipe joint for the spokes provided on the tire mounting surface of the rim can be utilized. Therefore, it is not necessary to provide a dedicated engagement structure for the rim to be engaged with the first engaging portion. In the tube tire for bicycle according to the second aspect of the invention, the protruding portion is a pin portion. In this case, the pin portion can be arranged by means of the mounting hole of the pipe joint, and the pipe can be attached and detached more easily. In the tube tire for bicycle according to the second aspect of the invention, the first engaging portion has an elastic locking portion. In this case, since the first engaging portion is elastically locked to the rim, the first engaging portion is less likely to fall off from the rim. In the tube tire for bicycle according to the second aspect of the invention, the first engaging portion has a locking portion. In this case, the engaging portion of the -4-M441580 is locked to the rim, so that the first engaging portion is less likely to fall off from the rim. In the bicycle tube for a bicycle according to the second aspect of the invention, the first engagement portion has a fixing portion that is fixed to an inner circumferential surface of the tube main body. In this case, since the first engaging portion is fixed to the inner peripheral surface of the tubular body, the first engaging portion is less likely to fall off from the tubular body. In the bicycle tire according to the sixth aspect of the invention, the tubular body main body has a susceptor layer φ at an inner peripheral portion of the tubular body. The fixing portion is fixed by the pedestal layer. In this case, since the fixing portion is fixed to the tube main body by the fixing of the base layer of the tube main body, the bicycle tire of the eighth type is described in the bicycle tire of the second type. The first engaging portion ' is integrally formed with the tubular body. In this case, since the first engaging portion is integrally formed with the tubular body, the structure of the tubular tire can be simplified. The bicycle rim assembly of the ninth type includes the bicycle wheel φ 圏 and the tubular tire; The rim has a tubular tire mounting portion at its outer peripheral portion. The tube tire ' includes a tube body, a land portion provided at an outer peripheral portion of the tube body, and a plurality of first engaging portions. The plurality of first engaging portions are provided on the inner peripheral portion of the tubular body at intervals in the circumferential direction, and are engaged with the tubular mounting portion. In the bicycle rim assembly, the first engagement portion is provided at an inner circumferential portion of the tube main body at intervals in the circumferential direction. The first engaging portion is engaged with the tube mounting portion to attach the tube to the rim. Thereby, the movement of the tubular tire in the circumferential direction can be restricted with respect to the rim. By allowing air to enter the inside of the tube, the -5-M441580 can limit the movement of the tube in the diameter direction. Here, if the first engaging portion is engaged with the tube mounting portion, the tube tire is less likely to move in the circumferential direction. Therefore, it is not necessary to join the tube to the rim, and the tube can be easily and quickly attached to and detached from the rim. In the bicycle rim assembly according to the ninth aspect of the invention, the tube mounting portion of the tire according to the ninth aspect of the present invention, wherein the tube mounting portion has a plurality of engagements with the first engaging portion at intervals in the circumferential direction The second engagement part. In this case, by engaging the first engagement portion with the second engagement portion, the tube is less likely to move in the circumferential direction of the rim. In the bicycle rim assembly according to the first aspect of the invention, the first engaging portion is a protruding portion, and the second engaging portion is a hole portion that engages with the protruding portion. . In this case, by engaging the protruding portion with the hole portion, the tube tire is less likely to move in the circumferential direction of the rim. In the bicycle rim assembly according to the first aspect of the invention, the hole portion is a spoke insertion hole provided in the tube mounting portion. In this case, the first engaging portion can be engaged by the filament insertion hole, so that it is not necessary to provide the second engaging portion except for the spoke insertion hole, which simplifies the structure of the rim. A bicycle rim assembly according to a thirteenth aspect of the invention, wherein the protruding portion is a pin portion. In this case, by engaging the pin portion with the hole portion, the first engaging portion can be easily engaged with the second engaging portion. In the bicycle rim assembly according to the eleventh aspect of the invention, the first engagement portion has an elastic locking -6-M441580 portion. In this case, since the first engaging portion is elastically locked to the rim, the first engaging portion is less likely to fall off from the rim. In the bicycle rim assembly according to the eleventh aspect of the invention, the first engagement portion has a locking portion. In this case, the %-engaging portion is locked to the rim* so that the first engaging portion does not easily fall off from the rim. In the bicycle rim assembly according to the ninth aspect of the invention, the first engaging portion has a fixing portion that is fixed to an inner circumferential surface of the tube main body. In this case, since the first engaging portion is fixed to the inner peripheral surface of the tubular body, the first engaging portion is less likely to fall off from the tubular body. In the bicycle rim assembly according to the sixteenth aspect of the invention, the tube main body has a pedestal layer in an inner peripheral portion of the tube main body. The fixing portion is fixed by the pedestal layer. In this case, since the base layer of the tube main body is fixed, the fixing portion φ can be firmly fixed to the tube main body. In the bicycle rim assembly of the ninth aspect, the first engagement portion is integrally formed with the tubular body. In this case, since the first engaging portion is integrally formed with the tubular body, the structure of the tubular tire can be simplified. [New effect] According to the present invention, as long as the first engaging portion is engaged with the rim, the tire is less likely to move in the circumferential direction. Therefore, the M441580 can easily and quickly attach and detach the tube to the rim without joining the tube to the rim. [Embodiment] As shown in Fig. 1, a bicycle tire (hereinafter referred to as a tire) 10 according to the first embodiment of the present invention includes a hub 12 located at the center, and is disposed on the outer peripheral side of the hub 12. A bicycle rim assembly (hereinafter referred to as a rim assembly) 14 and a plurality of (for example, 24) spokes 16 connecting the hub 1 2 and the rim assembly 14 are provided. The hub 12 has the function of a front hub or a rear hub, and has a hub flange 12a for locking the spokes 16 at the outer peripheral portions at both ends. The hub 12 is a quick release hub that is easy to handle. <Rim Assembly> The rim assembly 14 includes a bicycle rim (hereinafter referred to as a rim) 20 and a bicycle tubular tire (hereinafter referred to as a tubular tire) 22. <Rim > For example, at least a part of the rim 2 0 ' is a hollow structure made of an aluminum alloy, a polyamide fiber, or a carbon fiber reinforced resin. As shown in Fig. 2, the rim 20 has two side portions 20a that are tapered toward the inner peripheral end, and a tube mounting portion 20b that connects the outer peripheral portions of the side portions 20a. The inner peripheral side of the side portion 20a is smoothly bent and joined. The two side portions 20a are formed to be bilaterally symmetrical. The joint portion on the inner peripheral side of the side portion 20a is formed to be thicker than the other portions. The tube mounting portion 2 Ob is formed to be convexly curved on the inner peripheral side in cross section. The tube mounting portion 20b is formed to be thicker than the side portion 20a. The M441580 tube mounting portion 20b has a plurality of (for example, 24) filament insertion holes 20c spaced apart in the circumferential direction. The spoke wire insertion hole 20c is used when the spoke wire 16 is attached to the rim 20. The spoke insertion hole 20c is an example of the second engaging portion. Between any two of the spoke insertion holes 2A, a valve insertion hole (not shown) for inserting, for example, a VFR type tire valve 21 is provided in Fig. 1'. The rim 20 has a plurality of (for example, 24) spoke wire mounting holes 20d provided at a joint portion on the inner peripheral side of the side portion 20a. φ is in the spoke wire mounting hole 20d, and the pipe joint 17 is locked, and the pipe joint 17 is screwed into the front end of the spoke wire 16. The plurality of spoke wire mounting holes 20d, in the first embodiment, are formed to be slightly inclined alternately in the left and right directions. The spoke wire mounting hole 20d may be formed toward the center of the rim 20 without being inclined. <Tube> The tube 22 includes a tube body 24, a land portion 26, and a plurality of (for example, 24) first engaging portions 28. The tube main body 24 has a tube portion 24a of a flexible structure, a synthetic resin case 24b covering the outer peripheral portion of the tube portion 24a, and a base layer 24c provided on the inner peripheral portion of the tube portion 24a. The tube portion 24a has an airtight structure inside, and a tire valve 21 that protrudes inward in the radial direction is provided at one portion on the inner circumference side (refer to Fig. 1). The housing 24b is provided to protect the tube portion 24a. The housing 24b has its edge contacting both sides of the first engaging portion 28. The susceptor layer 24c is provided in a ring shape and is provided to reinforce the tube portion 24a. In the mounting portion of the susceptor layer 2k, the tube portion 24a has a plurality of fixing recesses 24d for mounting the first engaging portions 28. The fixing recess 24d is formed at intervals in the circumferential direction. The tube M441580 body 24 has a fixed outer portion 24e for fixing the first engaging portion 28. The fixing cover 24e is bonded to the housing in such a manner that the fixing recess 24d of the tube portion 24a is formed by sandwiching the first engaging portion 28 with the fixing recess 24f formed on the inner peripheral surface of the base layer 24c. 24b and the first card portion 28. The inner peripheral surface of the fixed outer cover 24e is in contact with the tube bead portion 20b of the rim 20. The fixed outer cover 2k has a through hole 24g through which the first engaging portion 28 is inserted. The fixing cover 24e is for fixing the first engaging portion 28 to be annular. Thereby, the edge of the casing 24b abutting on the first engaging portion is also fixed. The ground portion 26 is an elastic body that is harder and thicker than the tube portion 24a. The ground portion 26 is a portion that is in contact with the traveling road surface. The ground portion 26 is fused and adhered to the outer circumferential surface of the casing 24b. The plurality of first engaging portions 28 are made of a hard synthetic resin such as polyamine resin, polyacryl resin or polyacetal. The plurality of first engagements 28 are engaged with the tube mounting portion 20b of the rim 20. Specifically, the plurality of first engaging portions 28 respectively have a projection 28a that engages with the spoke insertion hole 20c, and a fixing portion 28b that is fixed to the inner peripheral portion of the tubular body 24, and a projection portion 28a. The smaller diameter of 28b protrudes from the circumference of the fixed portion 28b toward the center of the rim 20. The projection 28a is a cylindrical portion 28c that is engaged with the filament insertion hole 20c. In the first embodiment, the pin 28c is fitted to the spiro insertion hole 20c by, for example, loose fitting. The pin 28c protrudes inward in the radial direction through the fixed outer cover 24e. The fixing 28b is formed to be larger than the pin portion 28c. The fixing portion 28b is housed in the fixing recess 24d. The outer peripheral portion and the side portion of the fixing portion 28b are, for example, adhered to the fixing recess portion, and the holding portion 28 is a creping inner pin portion portion -10- M441580 24d of the amine portion. The inner peripheral surface of the fixing recess 2 is adhered to the fixed outer cover 24e ° <Loading and unloading sequence of the tubular tire> In the rim assembly 14 of the tire 10 of this configuration, when the tubular tire 22 is attached to the rim, The tube tire 22 from which the air has been discharged is attached to the tube tire mounting portion 20b of the rim 20. At this time, the tire valve 21 is inserted into the valve insertion hole. The projection 28a of the first coupling portion 28 is inserted into the filament insertion hole 20c to be engaged. Thereby, the movement of the tube tire 22 in the circumferential direction is restricted by the engagement of the projection portion 28a toward the filament insertion hole 20c. In this state, compressed air is supplied to the tire valve 21 by air pumping. Thereby, the movement of the tube 22 in the diameter direction is restricted, and the tube 22 is attached to the rim. On the other hand, when the tube 22 is to be detached from the rim 20, the tire valve 21 is released to discharge the compressed air in the tube portion 24a. Thus, the tube 22 can be moved in the diameter direction. Thereby, the projection 28a of the first engaging portion 28 can be detached from the splice insertion hole 2〇c. The tube spring 2 2 can be easily detached from the rim 20 by removing the protrusion 28a from the spoke insertion hole 2〇c and removing the tire valve 2 1 from the valve insertion hole. Here, if the first engaging portion 28 is engaged with the second engaging portion of the rim 2, that is, the spoke insertion hole 20c', the tubular tire is hard to move in the circumferential direction. Therefore, it is not necessary to join the tube to the rim, and the tube can be easily and quickly attached to the rim. <Second Embodiment> In the second embodiment, as shown in Fig. 3, the configuration of the first engaging portion 128 of the rim assembly -11 - M441580 tube tire 122 is different from that of the first embodiment. The projection 128a of the first engagement portion 128 is an elastic engagement portion l28c that is elastically locked with the spoke insertion hole 2〇c. In the following embodiments, the same components as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and the description thereof will be omitted. The elastic locking portion 128c of the projection portion 128a is made of a flexible synthetic resin such as polyimide resin, polyimine resin, polyacetal or the like. The elastic locking portion 1 2 8 c has a plurality of elastic pieces 1 2 8 d disposed at intervals around the center line toward the center of the rim 20 . The elastic piece 1 28d whose portion protrudes from the filament insertion hole 20c is bent outward in the radial direction of the filament insertion hole 20c so as to have a convex shape in cross section. The curved portion 1 2 8 e on the outer side in the radial direction of the rim 20 of the elastic sheet is placed on the inner peripheral side edge of the spoke insertion hole 20c to prevent the elastic locking portion 128c from falling off. When the tube 12 2 2 is to be removed, the elastic locking portion 1 28 c is elastically deformed toward the center line C side to be inserted through the spoke wire 20c. The fixing portion 228b' has the same configuration as that of the first embodiment. In the second embodiment, since the projection portion 128a is prevented from falling off, the tube tire 122 is less likely to fall off. <Third Embodiment> In the third embodiment, as shown in Fig. 4, the structure of the first engaging portion 228 of the tube tire 222 of the rim assembly 214 is different from that of the first and second embodiments. The protruding portion 228a of the first engaging portion 228 is an elastic locking portion 228c such as synthetic rubber which is formed integrally with the fixing portion 228b. -12- M441580 The front end portion of the locking portion 228c of the projection 22 8a is larger than the portion passing through the spoke insertion hole 20c, and the front end surface thereof is rounded, for example, in a spherical shape. The enlarged diameter portion 228e of the locking portion 228c is disposed at the edge of the inner peripheral side of the spiro wire insertion hole 20c to prevent the locking portion 228c from coming off. When the tube 122 is removed, the locking portion 228c is elastically deformed to pass through the filament insertion hole 20c. In the third embodiment, since the protrusion portion 22 8a is prevented from falling off, the tube 222 is less likely to fall off. <Fourth Embodiment> In the fourth embodiment, as shown in Fig. 5, the first engaging portion 32 8 is formed integrally with the tube portion 32a of the tube tire main body 324. In the fourth embodiment, the portion corresponding to the locking portion 328c of the projection portion 328a of the first engagement portion 328 has the same configuration as that of the third embodiment. However, since the first engaging portion 3 2 8 is integrally formed with the tube portion 3 24a, the tube main body 324 is not provided with a fixing recess and a fixing cover. The first engaging portion 328 is not provided with a fixing portion. In the fourth embodiment, since the protrusion portion 328a is prevented from falling off, the tube tire 3 22 is less likely to fall off. Since the tube portion 3 24a is formed integrally with the first engaging portion 32 8 , the structure of the tube tire 32 2 is simplified. <Other Embodiments> The above description of the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the novel features. In particular, the plurality of embodiments and modifications described in the present specification can be arbitrarily combined as needed. (a) In the above embodiment, the spoke wire insertion hole is exemplified as the second engaging portion, and the present invention is not limited thereto. For example, the second engaging portion is formed by a through hole provided in the rim by a different engagement with the spoke insertion hole. (b) In the third embodiment, the tubular portion and the first engaging portion may be integrally formed, and the casing and the first engaging portion may be integrally formed. (c) In the above embodiment, the present invention is applied to a rim which has a space rim and does not have a space. In this case, since the spoke insertion hole is not provided, the first engaging portion may be engaged with the second engaging portion provided different from the splice insertion hole. In the case where the number of the spokes is smaller than the number of the sprue mounting holes, it is also possible to engage the first engaging portion with the excess spoke mounting hole. (d) In the above embodiment, the first engaging portion is engaged with the entire spoke insertion hole as the second engaging portion, but the present invention is not limited thereto. The first engaging portion may be engaged with the at least two second engaging portions. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a side view of a bicycle tire using a bicycle rim assembly according to a first embodiment of the present invention. Fig. 2 is an enlarged cross-sectional view showing a cutting line II-ii of Fig. 1. Fig. 3 is a view corresponding to Fig. 2 of the second embodiment. Fig. 4 is a view corresponding to Fig. 2 of the third embodiment. -14- M441580 Fig. 5 is a view corresponding to Fig. 2 of the fourth embodiment. [Description of main component symbols] 1 4 : Rim assembly 20: Bicycle rim 2 0b : Tube mounting part 2 0 c : Wire insertion hole
22、122、222、3 22 ：自行車用管胎 24、324:管胎主體 24c :基座層 2 6 :接地部 28、128、228、328:第——^合部 28a、 128a、 228a、 328a ：突起部 28b、 128b、 228b ：固定部 2 8 c :銷部22, 122, 222, 3 22: bicycle tire 24, 324: tube tire main body 24c: pedestal layer 2 6 : grounding portion 28, 128, 228, 328: first - fitting portion 28a, 128a, 228a, 328a: protrusions 28b, 128b, 228b: fixing portion 2 8 c : pin portion
1 2 8 c :彈性卡止部 2 2 8 c ' 328c:卡止部 -15-1 2 8 c : elastic locking part 2 2 8 c ' 328c: locking part -15-