M340236 八、新型說明： 【新型所屬之技術領域】 本創作係一種運用於自行車的煞車器，尤指-種於兩 煞車臂之間設有導引構造而能同步平衡動作之同步式敏車 器。 【先前技術】 _ 目前運用於自行車的煞車器_般係設為如谓證書號 •數M262444號「自行車剎車夾器結構改良」等專利= 示的懸吊式煞車器，以及如TW證書號數咖8228號「可 自動回復定位的剎車器」等專利案所示的雙臂式煞車 幾種形式。 其中，如TW證書號Μ262444號專利案所示的煞車器 ，其主要是以金屬板材沖壓製成有第一刹臂、第二剎臂、 連結片及導動片等元件組合而成，並藉由一中心螺絲穿細 第-刹臂而以懸吊形式結合於車架。現有的懸吊式煞車器 •在兩剎臂之間必須以連結片及導動片等多個構件來連結； 動’不僅構造及動作模式均過於複雜，容易影響煞車動作 •的順暢性及反應速纟，並且在兩刹臂之間缺乏同步平衡動 -作的設計，纟易造成煞車偏差及單邊過度磨損等問題。 【新型内容】 為解決現有懸吊式煞車器有關於構造複雜及難以同步 =車動作的不足及限制，本創作提供一種於兩煞車臂之二 。又有導引構造而能夠同步平衡動作的同步式煞車器，該同 4 M340236 步/式煞車器係設有一個供兩煞車臂樞設連結的懸吊架，並 於㈣車臂相對應疊靠的延伸臂之㈣有以導弓丨連動構造 藉 '在，太車制動％ ’能夠利用導引連動構造的連結導引 作用’讓兩煞車臂能夠產生同步煞車制動的效能。 1作所運用的技術手段係在於提供-種同步式煞車 器’係包括： 〜吊木’於中段位置設有一中心栓，於該中心栓的 兩側形成相對朝外伸出的連結臂； …二煞車臂，分別於中段位置以可偏擺形態樞設結合於 石亥懸吊架的兩遠妹劈，+ 兩…、車I於頂側相對應地設有一鋼 件及一鋼索固定件’並於下端位置各設有一板座； =車臂於上半段以相向延伸形態各設有一延伸臂，兩延 ?臂的一段部位保持平行的重疊形態，並於兩延伸臂的重 豐部位之間設有-呈拋物線形式的導引部，以及一可 於該導引部的滑移件； 一 二一制動件’分別結合於該第一煞車臂與該第二煞 所設的板座；以及 -復位彈簧，設於該懸吊架與其中一個煞車 ， 亚以彈力作用於該煞車臂。 曰 前述的同步式煞車器，其中的導引部可以 槽狀的導引槽，痞去县一口仏壬溝 次者疋王拋物線形式的導引面；复 滑^件可以設為一欲置抵靠於該導引部的凸柱，或者、 抵靠於該導引部的滑輪。 疋 前述的同步式煞車器，其中的懸吊架係設為彎棋形的 5 M340236 桿架形態，於中段位置設有一 於連結臂的端部各設有一樞孔 的連結臂保持平行，且各於中 有一軸栓穿經該樞孔及該懸吊 結合。 供中心栓穿設的結合孔，並 ;兩煞車臂係大致與所對應 段位置設有一樞孔，並各設 架所對應的樞孔而形成樞設 本創作所提供同步式敏車哭 ^八…早态，可以獲付的優點及功效 增進至少包括： 1.本創作讓兩煞車臂以導引部及滑移件，形成可以同 步平衡動作的導引連動構造，不僅結構精簡輕巧，並且在 煞車制㈣，能夠讓兩煞車臂保持同步平衡料制動的操 I乍形態，有效地解決現有懸吊式煞車器於煞車時，兩煞= 臂容易產生時間差的_ ’提高懸吊式煞車器的煞車效能 及耐用性。 ’月匕 2_本創作直接以拱形懸吊架提供兩煞車臂樞設連結， 有效地簡化同步式煞車器的組成構造，並且能夠讓煞車動 作模式變得更為簡捷快速。 3.本創作利用以導引部及滑移件所形成的導引連動設 7，可以僅於單邊設置一個復位彈簧，即可達到讓兩煞2 臂同步連動及復位的效果，有效達到減少構件、減輕重旦 及降低成本等效能。 【實施方式】 為能詳細瞭解本創作的技術特徵及實用功辞 ^ 7 A，亚可依 照說明書的内容來實施，玆進一步以如圖式所示的較佳實 施例，詳細說明如后·· 6 M340236 本創作所提供同步式煞車器的較佳實施例係如第_至 四圖所不’該煞車器係包括有：—懸吊架(1〇卜相對結合 於該懸吊架（10)的-第—煞車f(2Q)與—第二煞車臂㈤厂 相對#。又方、1¾煞車臂（20,30)底端相向側的制動件（4〇)， 以及一復位彈簧（50)等構件；其中：M340236 VIII. New description: [New technical field] This is a type of brake device used in bicycles, especially a synchronous type sensor that has a guiding structure between two arm arms and can synchronously balance movements. . [Prior Art] _ The brakes currently used in bicycles are set to the same as the certificate number, number M262444, "Bike brake clamp structure improvement", etc., such as the hanging brakes, and the number of TW certificates. There are several forms of double-armed brakes shown in the patent case of No. 8228, "Automatically Responsible Positioning Brakes". Among them, the brake device shown in the TW certificate No. 262444 patent case is mainly formed by stamping a metal plate material with a first brake arm, a second brake arm, a connecting piece and a guiding piece, and borrowing It is attached to the frame in a suspended manner by a center screw wearing a thin-brake arm. The existing suspension type brakes must be connected by a plurality of members such as a connecting piece and a guide piece between the two brake arms. The structure and the operation mode are too complicated, and it is easy to affect the smoothness and reaction of the braking action. The speed is fast, and there is a lack of synchronous balance motion between the two brake arms, which easily causes problems such as brake deviation and excessive wear on one side. [New content] In order to solve the shortcomings and limitations of the existing suspension type brake device, which is complicated in structure and difficult to synchronize = the movement of the vehicle, the present invention provides a second type of arm. There is also a synchronous brake device with a guiding structure that can synchronously balance the movement. The same M340236 step/type brake device is provided with a suspension frame for pivoting the two arm arms, and is correspondingly stacked on the (four) arm. The extension arm (4) has the function of guiding the bow and slam linkage structure, and the utility model can use the joint guiding function of the guide linkage structure to enable the two brake arms to produce the synchronous brake function. The technical means used in the present invention is to provide a type of synchronous brakes, including: ~ Hanging wood 'in the middle position is provided with a center bolt, on both sides of the center bolt to form a ... The two arm arms are respectively pivotally connected to the two-way sisters of the Shihai suspension frame in the middle position, and the two doors are provided with a steel piece and a steel cable fixing member corresponding to the top side of the car. And each of the lower end positions is provided with a plate seat; = the arm arm is provided with an extension arm in the opposite direction in the upper half, and a portion of the two extension arms maintains a parallel overlapping form, and is in the overlapping portion of the two extension arms. a guide portion in the form of a parabola, and a sliding member at the guiding portion; and a brake member 'coupled to the first brake arm and the second socket; And a return spring is disposed on the suspension frame and one of the brakes, and the elastic force acts on the brake arm.曰The aforementioned synchronous brake device, wherein the guiding portion can be a groove-shaped guiding groove, and the guiding surface in the form of a parabolic line of the squadron of the county is removed from the county; the complex sliding member can be set as a desired one. Relying on the stud of the guiding portion, or a pulley that abuts against the guiding portion.疋The above-mentioned synchronous brake device, wherein the suspension frame is in the form of a curved M-shaped 5 M340236 rod frame, and at the middle position, a connecting arm having a pivot hole at each end of the connecting arm is kept parallel, and each A shaft is inserted through the pivot hole and the suspension is coupled. The coupling hole for the center bolt is inserted; and the two arm arms are generally provided with a pivot hole corresponding to the corresponding segment position, and each of the frame corresponding to the pivot hole is formed to form a pivoting device. ...early state, the benefits and enhancements that can be paid include at least: 1. This creation allows the two armes to form a guiding interlocking structure with a guiding portion and a sliding member, which can be synchronized and balanced, not only in a compact and lightweight structure, but also in The brake system (4) can keep the two brake arms in the synchronous balance brake mode, effectively solving the problem that the existing suspension brakes are easy to produce when the brakes are braked. _ 'Improve the suspension brakes Brake performance and durability.匕月匕 2_ This creation directly provides two arm erecting links with arched suspension frames, which effectively simplifies the construction of the synchronous brakes and makes the brake action mode simpler and faster. 3. This creation uses the guide linkage 7 formed by the guiding portion and the sliding member, and can only provide a return spring on one side, so as to achieve the effect of synchronously and resetting the two 煞 2 arms, effectively reducing Components, light weight reduction and cost reduction equivalent. [Embodiment] In order to understand in detail the technical features and practical merits of the present invention, the sub-can be implemented in accordance with the contents of the specification, and further illustrated in the preferred embodiment as illustrated in the following figure. 6 M340236 The preferred embodiment of the synchronous brake provided by the present invention is as described in the first to fourth figures. The brake device includes: a suspension frame (1) is relatively coupled to the suspension frame (10) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - And other components; among them:
請參閱第-、二圖所示，該懸吊架(1〇)係設為彎拱形 的桿架形態，於懸吊架⑽的中段位置貫設有—結合孔 ⑴），藉以供-中心栓（12)穿經該結合孔⑴）而用以安^結 °於自仃車的車架；該懸吊架（1 〇)於結合孔（11)的兩側形 ，相對朝外朝下彎伸的連結臂（13)，於兩連結臂（13)的端 部各設有一用以提供兩煞車臂（20,30)樞設連接的樞孔（14) 並糸相對應於第二煞車臂（30)的該連結臂（1 3)凹設有一 卡孔（15)。 明苓閱第一至二圖所示，該第一煞車臂（2〇)係設為表 面具有造形的直立狀彎弧形桿架形態，該第一煞車臂㈣ 鲁於中段位置設有一樞孔（21)，可以供一軸检（22)穿經該樞 孔（21)及懸吊架（10)所對應的樞孔（14)後，再以一螺帽 .(221)予以螺鎖結合，讓第一煞車臂（2〇)以可偏擺形態樞設 結合在懸吊架（10)位於右側的連結臂（13)，並且為提高第 煞車臂（20)擺動的順暢性，於該軸栓（22)與該樞孔（2彳）之 間套設有一個以上的軸套（222); 前述的第一煞車臂（20)於上半段形成一大致與所對應 的連結臂（1 3)保持平行且鄰靠該連結臂（1 3)的彎弧形延伸 臂（23) ’並且於該延伸臂（23)大致越過該中心栓（12)位置的 7 M340236 自由端，朝上吉伸形成一驅動 勡是（24)，於該驅動臂（24)的 自由端設有一結合孔（241 )，於兮沾人 ^；衣该結合孔（241)結合設有一 鋼索連結件（25)，藉以供一 辦京套g (60)的端部抵靠於該 鋼索連結件（25)，並且讓煞車 各罪 辦系（’U)牙過该鋼索連结件 (25)而延伸連動該第二敔車劈、 …、早身（30);該第一煞車臂（2〇)於該 延伸臂（2 3)朝向該第二教車臂 、 …、早# (30)的w側設有一道呈拋物 線形式的導引部（26)，如圖％ — 圖所不的導引部（26)係設為呈溝 槽狀的導引槽的實施形態、，並於該第-煞車臂(20)的下端 位置設有-板f (27)，於該板座（27)設有—呈直立長孔形 態的結合孔’#以供該制動件(4〇)鎖裝結合於該板座⑼ 處。 請爹閱第一至三圖所示，該第二煞車臂（30)係設為表 面具有造形的直立狀彎弧形桿架形態，該第二煞車臂（3〇) 於中段位置設有一樞孔（31)，可以供一軸栓（32)穿經該樞 孔（31)及懸吊架（10)所對應的樞孔（14)後，再以一螺帽 (321)予以螺鎖結合’讓第二煞車臂(3〇)以可偏擺形態樞設 結合在懸吊架（10)位於左側的連結臂（1 3)，並且為提高第 二煞車臂（30)擺動的順暢性，於該軸栓（32)與該樞孔（31)之 間套設有一個以上的軸套（322); 前述的第二煞車臂（30)於上半段形成一大致與所對應 的連結臂（1 3)保持平行且鄰靠該第一煞車臂（2〇)所設延伸 臂（23)的彎弧形延伸臂（33)，該延伸臂（33)的端部於越過該 中心栓（1 2)位置後形成直伸形態，並於自由端設有一結合 孔，於該結合孔結合設有一鋼索固定件（34)，藉以利用該 8 M340236 鋼索固疋件（34)將該煞車鋼孛（7 敦直辟_、 $(7Q)hx夹掣固定；該第二 …、車I (30)於該延伸臂（33)朝 执古一 π认 玄弟一煞車臂（20)的後側凸 伸人嵌合該導引部（26)的滑移件（Μ)，利用該滑 著該導引部（26)滑移的導引連動設計，能 =煞車W)形成同步相對滑移的連結形態；前述 …(35)可以設為凸柱.或滑輪等各種實施形態，如圖 2的較佳實㈣係於凸柱狀的滑移件（35)套設有一滑套 )’藉以提咼滑移件（35)滑移動作的順暢性； 前述的第二煞車臂（30)於下端位置設有一板座…）， 於該板座（37)設有-呈直立長孔形態的結合孔，藉以供該 ㈣件（40)鎖裝結合於該板座（37)處；又，配合該復位彈 黃（5〇)安裝作動的考量，該第二煞車f(3Q)於鄰近該軸检 (32)位置的後側凸設有一抵塊（38)。 如第-、四圖所示，兩制動件（40)係相對分別結合於 兩煞車臂（2G，3G)的板座（27,37) ’各制動件（4Q)均係設有一 用以鎖裝固定於所對應板座（27,37)的結合架（4υ，以及一 結合於該結合架（41)而用以夾掣一輪框（8〇)的煞車塊（42)。 如第一至三圖所示，該復位彈簧（5〇)係套設於該第二 煞車臂（3 0)所設的軸栓（3 2)且位於該懸吊架（1 q )與該第二煞 車臂（30)之間，該復位彈簧（50)係設有一可對插掣於該卡 孔（15)的卡桿（51)，以及一延伸而出且抵靠於該抵塊（38)的 抵桿（52)，藉以利用該復位彈簧（50)提供同步式煞車器的 兩煞車臂（20,30)保持張開狀態及復位的效果。 如此，利用前述的懸吊架（1 0)、第一煞車臂（2〇)、第 9 M340236 二煞車臂㈣、兩制動件（4Q)及復位彈簧⑽）等構件，组構 成如第-圖所示於兩煞車臂（2Q，3Q)之間設有導引 構造的同步式煞車器。 請參閱第-、三、四圖所示，本創作在組裝使用時， 利用兩煞車臂（20,3〇)之間以導引部（26)及滑移件⑽所構 成的導引連動設計，只要於單邊的第二煞車臂（3〇)與懸吊 架（10)之間設置-個復位彈簧（5Q)，利㈣復料箬（5_ 彈力作用’即可以讓兩煞車f (2Q，3G)連動兩制動件州保 持相對朝外退出的張開形態，以及讓滑移件㈣透過該滑 套（36)保持抵靠於該導引部（26)的形態； 第 五圖所示，當使用者操作進行煞車動作時， 利用兩煞車臂(20,30)之間所形成的滑移連結構造，能夠在 煞車鋼索（70)拉扯作動時，以沒有時間差的形態驅動第— 、第二煞車臂（20,30)產生的同步位移，讓結合於第一、第 二煞車臂”㈣動件（4Q)平衡地同步減於輪框（8〇) 的兩側，有效地產生同步煞車制動效能。 本創作有關於設於兩煞車臂（2〇,3〇)之間的導引連動構 ^除了可以採用各附圖所示的較佳實施形態之外，也可 以將兩煞車臂之間的滑移件與導引部的位置互換，或者是 將導引部設為拋物線形式的導引面等各種實施形態，同樣 可以達到讓兩煞車臂形成導引同步連動的效果。 以上所述，僅是本創作的較佳實施例，並非對本創作 作任何形式上的限制，任何所屬技術領域中具有通常知識 者，右在不脫離本創作所提技術方案的範圍内，利用本創 10 M340236 作所揭示技術内容所作出局部更動或修飾的等效實施例， 並且未脫離本創作的技術方案内容，均仍屬於本創作技尤 【圖式簡單說明】 第一圖係本創作較佳實施例之立體結構圖。 第二圖係本創作較佳實施例之组成構件分解图 第三圖係本創作較佳實施例之結構剖面圖。Please refer to the first and second figures. The suspension frame (1〇) is in the form of a curved arch frame. The middle part of the suspension frame (10) is provided with a coupling hole (1) for the center. The bolt (12) passes through the joint hole (1) for fixing the frame of the self-propelled vehicle; the suspension frame (1 〇) is formed on both sides of the joint hole (11), facing outwardly downward The bent connecting arm (13) is provided at each end of the two connecting arms (13) with a pivot hole (14) for providing pivotal connection between the two arm (20, 30) and corresponding to the second brake The connecting arm (13) of the arm (30) is recessed with a card hole (15). As shown in the first to second figures, the first brake arm (2〇) is configured as a vertical curved curved frame having a surface, and the first brake arm (4) is provided with a pivot hole at the middle position. (21), a shaft inspection (22) can be passed through the pivot hole (14) corresponding to the pivot hole (21) and the suspension frame (10), and then screwed and coupled by a nut (221). The first brake arm (2〇) is pivotally coupled to the connecting arm (13) on the right side of the suspension frame (10), and the smoothness of the swing of the second arm (20) is improved. One or more sleeves (222) are sleeved between the bolt (22) and the pivot hole (2彳); the first brake arm (20) forms a substantially corresponding connecting arm in the upper half (1) 3) a curved curved extension arm (23)' that is parallel and adjacent to the connecting arm (13) and that extends over the free end of the extension arm (23) substantially beyond the position of the central plug (12), toward the upper end Forming a driving cymbal (24), a coupling hole (241) is disposed at a free end of the driving arm (24), and the connecting hole (241) is coupled with a steel cable connecting member. 25), by means of which the end of a set of g (60) is abutted against the cable joint (25), and the brakes ('U) teeth extend over the cable joint (25) Linking the second brake 劈, ..., the body (30); the first brake arm (2 〇) to the extension arm (23) toward the second trainer arm, ..., early # (30) w A guide portion (26) in the form of a parabola is provided on the side, and the guide portion (26) shown in Fig. 100 is a groove-shaped guide groove, and the first The lower end position of the brake arm (20) is provided with a plate f (27), and the plate seat (27) is provided with a coupling hole '# in the form of an upright long hole for the brake member (4〇) to be locked and coupled The board seat (9). Please refer to Figures 1 to 3, the second brake arm (30) is in the form of an upright curved curved frame having a shape on the surface, and the second brake arm (3〇) is provided with a pivot at the middle position. The hole (31) can be used for a shaft bolt (32) to pass through the pivot hole (14) corresponding to the pivot hole (31) and the suspension frame (10), and then screwed and coupled by a nut (321). The second brake arm (3〇) is pivotally coupled to the connecting arm (1 3) on the left side of the suspension frame (10), and the smoothness of the swing of the second braking arm (30) is improved. The shaft bolt (32) and the pivot hole (31) are sleeved with more than one sleeve (322); the second brake arm (30) forms a substantially corresponding connecting arm in the upper half ( 1 3) a curved curved extension arm (33) that is parallel and adjacent to the extension arm (23) provided by the first brake arm (2), the end of the extension arm (33) over the center bolt (1) 2) forming a straight stretched shape after the position, and providing a joint hole at the free end, and a cable fixing member (34) is coupled to the joint hole, thereby using the 8 M340236 steel cable fixing member (34) to brake the brake steel (7 敦直立_, $(7Q)hx 掣 fixed; the second..., car I (30) on the extension arm (33) toward the ancient π 玄 玄 玄 煞 煞 煞 煞 煞 煞 煞 20 20 20 The protrusion member fits the sliding member of the guiding portion (26), and the guiding interlocking design that slides the guiding portion (26) can form a synchronous relative slip with the brake W) The connection form; the above-mentioned (35) may be various embodiments such as a stud or a pulley, and the preferred embodiment of FIG. 2 (4) is a sleeve-shaped sliding member (35) provided with a sliding sleeve) The slippery movement of the sliding member (35) is smooth; the second brake arm (30) is provided with a plate seat at the lower end position...), and the plate seat (37) is provided with a combination of an upright long hole shape a hole for the (4) piece (40) to be locked and coupled to the plate seat (37); and, in conjunction with the installation of the reset spring (5〇), the second brake f (3Q) is adjacent to the shaft A backing block (38) is protruded from the rear side of the inspection (32) position. As shown in the first and fourth figures, the two brake members (40) are respectively coupled to the bases (27, 37) of the two arm arms (2G, 3G). Each brake member (4Q) is provided with a lock. a binding frame (4) fixed to the corresponding plate seat (27, 37), and a brake block (42) coupled to the combination frame (41) for clamping a wheel frame (8 inches). As shown in the three figures, the return spring (5〇) is sleeved on the shaft bolt (32) provided by the second brake arm (30) and is located at the suspension frame (1q) and the second brake arm. Between (30), the return spring (50) is provided with a lever (51) that can be inserted into the hole (15), and an yoke that extends out and abuts against the abutment (38) The rod (52) is used to provide the two brake arms (20, 30) of the synchronous brake device to maintain the open state and the reset effect by using the return spring (50). Thus, the suspension frame (10) and the One arm (2〇), ninth M340236 second arm (four), two brakes (4Q) and return spring (10), etc., the group structure is set between the two arm (2Q, 3Q) as shown in the figure - Synchronous brake with guiding structure . Please refer to the first, third, and fourth figures. This assembly uses the guiding linkage design of the guide arm (26) and the sliding member (10) between the two arm (20, 3 〇) when assembling and using. As long as there is a return spring (5Q) between the second arm (3〇) and the suspension frame (10) on one side, the (4) compound 箬 (5_ elastic action) can make two cars f (2Q) , 3G) interlocking the two brake states to maintain a relatively open outwardly exiting configuration, and allowing the sliding member (4) to maintain abutment against the guiding portion (26) through the sliding sleeve (36); When the user operates the brake action, the slip joint structure formed between the two arm arms (20, 30) can drive the first and the second in the form of no time difference when the brake cable (70) is pulled and actuated. The synchronous displacement generated by the second arm (20, 30) allows the first and second brake arms (4) to be synchronously reduced to the two sides of the wheel frame (8〇) in a balanced manner, thereby effectively generating a synchronous brake. Braking performance. This creation has a guide linkage structure between two arm (2〇, 3〇). In addition to the preferred embodiment shown, various embodiments of the sliding member between the two arm members and the guiding portion may be interchanged, or the guiding portion may be a parabolic guide surface, and the like. The effect of guiding the two armes to form a synchronous synchronization is achieved. The above description is only a preferred embodiment of the present invention, and does not impose any form limitation on the present creation. Anyone having ordinary knowledge in the technical field does not Except for the technical solutions proposed by the present invention, the equivalent embodiment of the local modification or modification made by the present invention is not limited to the technical solutions of the present invention, and is still in this creative technique. BRIEF DESCRIPTION OF THE DRAWINGS The first drawing is a perspective view of a preferred embodiment of the present invention. The second drawing is an exploded view of the components of the preferred embodiment of the present invention. .
第四圖係本創作較佳實施例一般狀態之妗 错m j么、、口傅示意圖。 弟五圖係本創作較佳實施例煞車狀士 、、、°構示意圖。 (11)結合孔 (13)連結臂 (15)卡孔 (21)樞孔 (221)螺帽 (23)延伸臂 (241)結合孔 (26)導？丨部 (31)樞孔 (321)螺巾冒 (3 3)延伸f (35)滑移# 【主要元件符號說明 (1〇)懸吊架 (1 2)中心栓 (14)樞孔 (20)第一煞車臂 (2 2)軸栓 (222)軸套 (24) 驅動臂 (25) 鋼索連結件 (27)板座 (30)第二煞車臂 (3 2)軸栓 (322)軸套 (34)鋼索固定件 M340236 (36)滑套 (37)板座 (38)抵塊 (40)制動件 (41)結合架 (42)煞車塊 (50)復位彈簧 (51)卡桿 (52)抵桿 (60)鋼索套管 (70)煞車鋼索 (80)輪框 12The fourth figure is a schematic diagram of the general state of the preferred embodiment of the present invention. The fifth figure is a schematic diagram of a preferred embodiment of the present invention. (11) Binding hole (13) Connecting arm (15) Card hole (21) Shaft hole (221) Nut (23) Extension arm (241) Binding hole (26) Guide? Crotch part (31) Pivot hole (321) Spiral towel (3 3) Extension f (35) Slip # [Main component symbol description (1〇) Suspension (1 2) Center pin (14) Pivot hole (20 ) First brake arm (2 2) Shaft bolt (222) Bushing (24) Drive arm (25) Cable joint (27) Plate base (30) Second brake arm (3 2) Shaft bolt (322) Bushing (34) Cable fixing member M340236 (36) Sleeve sleeve (37) Plate seat (38) Abutting block (40) Brake member (41) Binding frame (42) Brake block (50) Return spring (51) Rod (52) Reinforcement rod (60) steel cable casing (70) brake steel cable (80) wheel frame 12