M427293 · 五、新型說明： 【新型所屬之技術領域】 本新型是有關於一種自行車零件，特別是指—種應用 於自行車後輪之花轂 【先前技術】 -般的自行車後輪花肖，有應用棘輪式離合結構⑽如 公開編號第201127660號案、第20U19887號案、第 201100293號案、證書號第M395596號案等），亦即，在殼 體或鏈輪座二者其中-者設有棘齒，另—相開設有多數 安裝孔，以供安裝多數掣爪及至少一提供該等寧爪回復彈 性的彈性元件，雖然這種花轂已被普遍應用，但有構件多 、製造組配麻煩、成本較高的缺失，且操作時的噪音較大 另外，公告編號第494867號專利案，是利用一螺合桿 以螺紋驅動一套筒相對於花轂殼體一内錐面產生靠合或= 離’以達到正向連動、反向空轉目的，且利用多數二珠^ $簧產生一抵制機構，以提供該套筒產生定位。雖然這種 花穀具有無聲之功效’但因彈簧使用久了會疲乏，使得該 等滾珠對該套筒的摩擦力降低，若要更換該等彈簧，會有 維修成本南的缺失，且更換、維修並不容易。. 【新型内容】 因此本新型之目的，即在提供一種構件簡單、製造 組配谷易、維修方便且可延長使用壽命之花轂。 於是，本新型之花轂，包含一心軸單元、一殼體、一 3 鍵輪座及一離合單元。該心軸單元沿一軸線延伸，該殼體 呈可旋轉地被該心軸單元所支撐，並具有一圍繞該轴線的 周壁’該周壁具有一連結端部、一設置在該連結端部的固 定槽及一設置在該固定槽外側的容置槽，該鏈輪座呈可轉 動地軸設在該心軸單元上且位在該殼體一側，並具有一對 應該容置槽的連動部及一設在該連動部外側的鏈輪安裝部 ，該離合單元安裝在該殼體與該鏈輪座之間，並具有一固 設在該固定槽的定位件、一沿該軸線設置在該定位件一側 的離合件、一沿該軸線設置在該離合件一側且固設在該連 動部的掣動件及一設置在該定位件與該離合件之間的彈性 件，該定位件具有多數第一嚙合部，該離合件具有多數可 與該等第一嚙合部互相嚙合的第二嚙合部及多數與該等第 二鳴合部相反的受料，該掣動件具有多數對餘該等受 寧部的f動部，該鏈輪座帶動該掣動件朝—連動方向轉動 ，利用該等掣動部掣動該等受掣#，可使該離合件由一違 離於較位件的遠離位置’操作成—與該定位㈣合的咬 合位置且可連動該殼體轉動，該 埏輪座與該喊體相對轉動 ’利用該彈性件的彈力可徒兮施人Μ … 亥離合件由咬合位置轉換成遠 離位置，該鏈輪座呈空轉。 〜 =之功效，該離合單元的設置，可使該鏈輪 座朝該連動方向可㈣該殼體轉動，#該鏈輪座 相對轉動時，則使該鏈輪座呈空轉，的= 二配容易、維修方便，且可延長使用早壽:的構❹ 【貫施方式】 M427293 有關本新型之前述及其他技術㈣、特點 以下配合參考圖式之—個較佳實施例的詳細說明中，將可 清楚的呈現。 :圖y圖。2一及圖3所示’本新型花毅之_較佳實施例 ，匕3〜軸早兀10、-殼體20、-鏈輪座30及一離人 單元40 〇 該心轴單元If)目士 /、有一沿一轴線L延伸的軸桿u及多 .數組設在該軸桿u上的軸承12。 該设體2G呈可旋轉地被該心、軸單元ία所支樓，並且 有-圍繞該轴線!^並可界定出一内孔21的周壁 壁 22具有一連結端部？ ^ —设置在該連結端部23的固定槽 24及-設置在該固定槽24外側的容置槽h，該固定槽Μ 圍繞银線L的内環面241及一與該内環面 的内壁面242 I金品士 成，該内環面241具有一内螺紋部243 〇 錢輪座30呈可轉動地軸設在該心軸單元/ 該殼體2G —側，並具有1應該容置槽25的連動部31、ί 連動部31外側的鏈輪安裝部32及—設置在該連動部 A外鏈輪安裝部32之間的擔止部33，該連動部31呈有一 為外螺紋的螺鎖部位311 , 、 遠叙 〇擋止。卩33具有一垂直相鄰於該 運動部31的擋面331。 且λ離口單A 4〇文裝在該殼體與該鍵輪座％之間，並 固設在該固定槽24的定位件“、—沿該軸線L設置 Μ位件41 —側的離合件42、—沿該軸線L設置在該離 5 合件42 —側且固設在該連動部3〗的掣動件43及—設置在該 疋位件41與該離合件42之間的彈性件44。 § 該定位件41具有一側端面411 '多數圍繞該軸線L且沿 環向排列凸設在該側端面411的第一嚙合 /〇 “ 一目孩側 端面川凹設的第一凹孔413及一螺固在該内螺紋部冰 外螺紋部414,該等第一嗔合部412呈單向斜齒狀，且環設 在該第一凹孔413的外部。 又 配合參見圖.4,該離合件42具有一與該側端面4ιι相對 的第-端面42卜多數設置在該第—端面421的第二嗔合部 422、一自該第一端面421凹設的第二凹孔423、—與該第— 端面421相反的第二端面424及多數與該等第二嚙合部似 相反的受掣部425 ,該等第二嗜合部422與該等第—嗔合部 412呈反向設置，也呈單向斜齒狀，可與該等第—嗜合部化 單向嗜合’該第二凹孔423與該第—凹孔413相對設置，該 等受掣部425圍繞該轴線L且沿環向排列凸設在該第二端面 424,並各具有一對應該第二端面424的第一低端4%、一位 在該第二端面424與該掣動件43之間的第一高端427及一由 該第一低端426傾斜延伸至該第一高端427的第一斜面部 428 ° . 配合參見圖4，該掣動件43具有一與該第二端面424相 對的内端面431、多數對應於該等受掣.部425的掣動部432 及一為内螺紋且螺固在該螺鎖部位311的鎖固部位433，該 等掣動部432圍繞該轴線L且沿環向排列&設在該内端面 431並各具有一對應该内端面431的第二低端434、一位在 該内端面431與該第二端面424之間的第二高端^—由 該彈性件44為盤形彈簧且彈抵在該第 423之間。 該第二低端434傾斜延伸至該第二高端州的第二斜面部 436，該第一 '二斜面部428、436呈相對 凹孔413 且如圖3及圖4所示，當該鏈輪座30被驅動而朝連動方 向（如箭頭所示）轉動時，會帶動該擎動件43朝同方向轉動’ 且利用該等f動部432的第二斜面部祝掣動該等受擎部 426的該等第—斜面部似，該等第—斜面部似沿該等第二 斜面部436的導引作用，使得該等第-高端427由該等第二 低知434逐漸爬昇至該等第二高端435，即可使該離合件^ 沿該軸線L移動並朝該定位件41靠合，此時，該等第—高 端427無法越過該等第二高端435，並钱卡定位在該等第二 回端435上，而該離合件42與該定位件41靠合時，該第— 一嚙σ。卩412、422也產生咬合（此時該彈性件44被壓制在 。玄定位件41 #该離合件之間並巍藏回釋彈力），並位於一咬 口位置該鏈輪座30在帶動該擎動件43轉動時：利用該等 第一高端427後卡定位在該等第二高@ 435的作用，也可帶 動該離合件42轉動，該離合件42又利用該第二唾合部422 與該第-嚙合部412的咬合作用，也可連動該定位件4ι 一起 轉動，所以即可連動該殼體20轉動。 相反地，當該鏈輪座3〇與該殼體2〇相對轉動，亦即， 該鍵輪座30反向轉動，或該鏈輪座30不轉、該殼體20仍繼 續朝連動方向轉動時’此時’該擎動件43的.該等第二高端 435逐漸對應於該離合件42的該等第一低端426，該離合件 42原來受到該掣動件43產生沿軸線L的推力已消除，如圖 5及圖6所示，利用該彈性件44的彈力可使該離合件朝 該掣動件43移動，該第一、二嚙合部412、422不再咬合， 該離合件42可由咬合位置轉換成一遠離位置，此時，該鏈輪 座30即呈空轉且無聲的狀態。 因此，利用該離合單元40的設置不僅可使該花轂達到 單向連動、反向空轉的目的，且該離合單元4〇的構件簡單 、製造組配容易、維傪也相當方便，且該彈性件44不容易 產生彈性疲乏，更具有延長使甩壽命之功效。 惟以上所述者，僅為本新型之較佳實施例而已，當不 能以此限定本新型實施之範圍，即大凡依本新型申請專利 範圍及新型說明内容所作之簡單的等效變化與修飾，皆仍 屬本新型專利涵蓋之範圍内》 【圖式簡單說明】 圖1是一平面組合圖，說明本新型花轂的一較佳實施 例；. 圖2是本新型上述較佳實施例之一立體分解圖； 圖3是本新型上述較佳實施例之一組合剖面圖； 圖4是本新型上述較佳實施例之—操作示意圖，說明 一掣動件掣.動一離合件朝一定位件靠合且位於一咬合位置 圖5是本新型上述較佳實施例之另—組合剖面圖·及 圖6是本新型上述較佳實施例之另一操作示意圖，說 9 M427293 · 处+ & '--- -.. 明利用一彈性件的彈力使得該離合件遠離於該定位件且位 ]mm§ π :【主要元件符號說明】 10·.... ……心軸單元 411··· …·側端面 L…… …·軸線 412… —第 嗜合部 11··.·· 轴杯 413… •…第一凹孔 12….· —軸承 414… …·外螺紋部 20·.·.· •…殼體 42·.·· •…離合件 21 ··... ….内孔 421… —弟 面 22 …·周壁 422… …·第二嚙合部 23·.·.· …·連結端部 423… •…第二凹孔 24··... •…固定槽 424… •…第二端面 241… •…内環面 425… •…受掣部 242… —内壁面 426… …·第一低端 243… •…内螺紋部 427… …·第一高端 25…… •…容置槽 428 …. —第斜面部 30·.··· •…鏈輪座 43…… …掣動件 31…… •…連動部 43 卜... …·内端面 311 ··· •…螺鎖部位 432 ··· ···掣動部 32…… ····錢輪安裝部 433 ···· …鎖固部位 33…… …·擋止部 434 ·.· …第二低端 331 ··· •…擋面 435 ···· …第二高端 40…… …離合單元 436 ···· …第二斜面部 41…… …定位件 44…… …彈性件M427293 · V. New description: [New technology field] This new type is related to a bicycle part, especially the flower hub used in the rear wheel of bicycle [previous technology] - the rear wheel of the bicycle Applying a ratchet clutch structure (10), such as the public number No. 201127660, the 20U19887 case, the 201100293 case, the certificate number No. M395596, etc., that is, in the case of the casing or the sprocket seat The ratchet, the other-phase is provided with a plurality of mounting holes for mounting a plurality of claws and at least one elastic member for providing the elastic returning elasticity of the claws. Although the flower hub has been generally used, there are many components and manufacturing combinations. Trouble, high cost, and high noise during operation. In addition, the publication No. 494,867 uses a screwing rod to thread a sleeve to be engaged with an inner tapered surface of the hub shell. Or = to 'for forward linkage, reverse idling purposes, and use a majority of the two beads to generate a resist mechanism to provide positioning of the sleeve. Although this kind of flower valley has a silent effect, but the spring will be tired due to the use of the spring, the friction of the ball on the sleeve is reduced. If the spring is to be replaced, there will be a lack of maintenance cost in the south, and replacement, Repair is not easy. [New content] Therefore, the purpose of the present invention is to provide a flower hub which is simple in construction, easy to manufacture, easy to maintain, and long in service life. Therefore, the flower hub of the present invention comprises a mandrel unit, a casing, a 3-key wheel base and a clutch unit. The mandrel unit extends along an axis, the housing is rotatably supported by the spindle unit, and has a peripheral wall surrounding the axis. The peripheral wall has a connecting end portion and a connecting end portion. a fixing groove and a receiving groove disposed outside the fixing groove, the sprocket seat is rotatably shafted on the spindle unit and located on one side of the housing, and has a pair of linking portions that should accommodate the groove And a sprocket mounting portion disposed outside the linkage portion, the clutch unit is mounted between the housing and the sprocket seat, and has a positioning member fixed to the fixing slot, and is disposed along the axis a clutch member on one side of the positioning member, a tilting member disposed on the side of the clutch member along the axis and fixed to the linking portion, and an elastic member disposed between the positioning member and the clutch member, the positioning member Having a plurality of first engaging portions, the clutch member having a plurality of second engaging portions engageable with the first engaging portions and a plurality of receiving materials opposite to the second merging portions, the plucking member having a majority The sprocket seat drives the swaying Rotating in the direction of the linkage, and using the swaying portions to sway the shackles, the clutch member can be operated by a remote position from the positional member to be engaged with the positioning (four). When the casing rotates, the wheel base rotates relative to the body. The elastic force of the elastic member can be used to change the position of the clutch member from the bite position to the remote position, and the sprocket seat is idling. The effect of the ==, the setting of the clutch unit can make the sprocket seat facing the linkage direction (4) the housing rotates. # When the sprocket seat rotates relatively, the sprocket seat is idling, Easy and easy to maintain, and can extend the use of early life: the configuration of the system [Missing method] M427293 The above-mentioned and other technologies (4), characteristics of the present invention will be described in detail below with reference to a preferred embodiment of the reference drawings. Can be clearly presented. : Figure y diagram. 2 and 3, the preferred embodiment of the present invention, the preferred embodiment, the 匕3~axis early 兀10, the housing 20, the sprocket seat 30, and an off-body unit 40 〇 the mandrel unit If)士 /, has a shaft u extending along an axis L and more. An array of bearings 12 provided on the shaft u. The housing 2G is rotatably supported by the core and the shaft unit ία, and has a peripheral end wall 22 having an inner bore 21 and a connecting end portion. ^ - a fixing groove 24 provided at the connecting end portion 23 and a receiving groove h disposed outside the fixing groove 24, the fixing groove 围绕 surrounding the inner annular surface 241 of the silver wire L and an inner surface of the inner ring surface The inner wall surface 241 has an internal thread portion 243. The wheel housing 30 is rotatably axially disposed on the side of the spindle unit/the housing 2G and has a receiving groove 25 The interlocking portion 31, the sprocket attaching portion 32 outside the interlocking portion 31, and the supporting portion 33 provided between the interlocking portion A outer sprocket attaching portion 32, the interlocking portion 31 has a threaded portion which is externally threaded 311, , far from the shackles. The crucible 33 has a stop face 331 that is vertically adjacent to the moving portion 31. And the λ-outlet single A 4 〇 is installed between the housing and the key wheel housing %, and is fixed to the positioning member of the fixing groove 24, and the clutch is disposed along the axis L. The member 42 is disposed along the axis L on the side of the 5-piece member 42 and fixed to the linking portion 3 and the elasticity disposed between the clamping member 41 and the clutch member 42 Item 44. § The positioning member 41 has a first end surface 411 ′. A plurality of first recesses are formed around the axis L and are circumferentially arranged to protrude from the side end surface 411. 413 and a screw threaded portion 414 are screwed to the internal thread portion, and the first engaging portion 412 has a unidirectional helical shape and is disposed outside the first recessed hole 413. Referring to FIG. 4, the clutch member 42 has a first end surface 42 opposite to the side end surface 4 ι, and a second yoke portion 422 disposed on the first end surface 421 is recessed from the first end surface 421. a second recessed hole 423, a second end surface 424 opposite to the first end surface 421, and a plurality of receiving portions 425 opposite to the second engaging portions, the second indwelling portions 422 and the first The merging portion 412 is disposed in a reverse direction and is also unidirectionally slanted, and can be disposed opposite to the first recessed hole 423 and the first recessed hole 413. The receiving portion 425 surrounds the axis L and is circumferentially arranged to protrude from the second end surface 424, and each has a pair of first lower end 4% of the second end surface 424, and a bit at the second end surface 424 The first high end 427 between the tilting members 43 and a first inclined surface portion 428° extending obliquely from the first low end 426 to the first high end 427. Referring to FIG. 4, the tilting member 43 has a The inner end surface 431 opposite to the second end surface 424, the plurality of tilting portions 432 corresponding to the receiving portions 425, and a locking portion which is internally threaded and screwed to the screw locking portion 311 433, the swaying portions 432 are arranged around the axis L and circumferentially & disposed on the inner end surface 431 and each having a pair of second lower ends 434 that should be the inner end faces 431, one at the inner end faces 431 and The second high end between the second end faces 424 is a disc spring by the elastic member 44 and is biased between the second ends 423. The second lower end 434 extends obliquely to the second slope portion 436 of the second high-end state, the first 'two slope portions 428, 436 are opposite the recess 413 and as shown in FIGS. 3 and 4, when the sprocket When the seat 30 is driven to rotate in the interlocking direction (as indicated by the arrow), the agitating member 43 is rotated in the same direction and the second inclined portion of the f-moving portion 432 is used to sway the engines. </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> The second high end 435 can move the clutch member along the axis L and abut against the positioning member 41. At this time, the first high end 427 cannot cross the second high end 435, and the money card is positioned at the second high end 435. When the second return end 435 is on, and the clutch member 42 is engaged with the positioning member 41, the first one is σ. The 卩 412, 422 also generates a bite (at this time, the elastic member 44 is pressed. The locating member 41 # between the clutch members and the rebound elastic force is hidden), and the sprocket seat 30 is driven at a bite position. When the urging member 43 rotates: the first high-end 427 is used to position the second high 435, and the clutch member 42 can also be rotated. The clutch member 42 utilizes the second salvage portion 422. The biting cooperation with the first meshing portion 412 can also rotate the positioning member 4i together, so that the housing 20 can be rotated. Conversely, when the sprocket seat 3 〇 rotates relative to the housing 2 ,, that is, the key wheel housing 30 rotates in the reverse direction, or the sprocket seat 30 does not rotate, the housing 20 continues to rotate in the interlocking direction. The second high end 435 of the actuating member 43 gradually corresponds to the first lower end 426 of the clutch member 42. The clutch member 42 is originally generated by the tilting member 43 along the axis L. The thrust has been eliminated. As shown in FIG. 5 and FIG. 6 , the clutch member is moved toward the tilting member 43 by the elastic force of the elastic member 44. The first and second engaging portions 412 and 422 are no longer engaged. 42 can be converted into a distant position by the bite position, at which time the sprocket seat 30 is in an idling and silent state. Therefore, the arrangement of the clutch unit 40 can not only achieve the purpose of unidirectional interlocking and reverse idling, but also the components of the clutch unit 4〇 are simple, the manufacturing assembly is easy, and the maintenance is also convenient, and the elasticity is The piece 44 is not prone to elastic fatigue, and has the effect of prolonging the life of the crucible. However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention cannot be limited thereto, that is, the simple equivalent change and modification made by the novel patent application scope and the novel description content, It is still within the scope of the present patents. [Simplified illustration of the drawings] FIG. 1 is a plan view of a preferred embodiment of the present invention; FIG. 2 is one of the above preferred embodiments of the present invention. 3 is a cross-sectional view of a preferred embodiment of the present invention; FIG. 4 is a schematic view of the operation of the preferred embodiment of the present invention, illustrating a swaying member, moving a clutch member toward a positioning member 5 is a combined sectional view of the preferred embodiment of the present invention, and FIG. 6 is another schematic operation diagram of the above preferred embodiment of the present invention, said 9 M427293 · at + & '- ---.. Using the elastic force of an elastic member to make the clutch member away from the positioning member and the position] mm§ π: [main symbol description] 10·.......... spindle unit 411··· ... · Side end face L ... ... axis 412... The first engaging portion 11····· The shaft cup 413... • The first recessed hole 12....·-bearing 414... the external threaded portion 20·.·.·...the housing 42·.··•... Clutch member 21··.... inner hole 421...-face 22... peripheral wall 422...·second meshing portion 23·······connecting end portion 423... •...second recessed hole 24· •... •...fixing groove 424... •...second end surface 241... •...inner ring surface 425...•...receptive portion 242...-inner wall surface 426...the first low end 243...the inner thread portion 427 ...·The first high end 25... • The accommodating groove 428 .... — the first inclined surface 30·.····...the sprocket seat 43...the swaying member 31...the...the interlocking portion 43.. . . . inner end surface 311 ··· •... screw-locking part 432 ··········································································· Stop 434 ··· ...the second lower end 331 ····...the stop surface 435 ····...the second high end 40...the clutch unit 436 ····...the second inclined surface 41...the positioning piece 44...... ...elastic parts
1010