M246266 捌、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，特別是指一種能以迴旋 方式快速折疊的可迴旋折疊之自行車。 5 【先前技術】 「自行車」是目前最輕便、低消費額，又符合環保需 求的交通工具，因此，以自行車做為代步、休閒、健身的 工具，已廣被消費者接受而蔚為風尚，所以，消費者在使 用的要求上，除了加強騎乘時的安全性及舒適性外，對於 10 車身的功能性也愈來愈重視。而一般自行車大都屬於固定 式，並無法折疊收藏，所以，停放在外的自行車，常遭受 風吹、日曬，較容易銹蝕損壞，且容易遭竊。 為了改善上述缺失，目前市面上充斥有相當多種類的 折疊式自行車，以一種左、右對開方式折疊的自行車為例 15 ，會礙於折疊中心位於車架中心位置，有無法安裝避震裝 置的缺失，另有一種以迴旋方式折疊的自行車，會因為車 架呈線性方向延伸，在折疊後有前、後車輪相互干涉的情 形，所以，必須先將前車輪卸離車架另外置放，不但折疊 速度緩慢，且會造成使用上的困擾。 20 【新型内容】 因此，本新型之目的，即在提供一種折疊迅速且可安 裝避震裝置的可迴旋折疊之自行車。 於是，本新型之可迴旋折疊之自行車包含：一座桿單 元、一後架單元、一前架單元及一連接組件。該座桿單元 5 M246266 ，具有上、下樞接的一上座管與一下座管。該後架單元具 有一後叉桿及一後車輪，該後叉桿是以一前端與下座管固 接，該後車輪是設置在後叉桿一末端。該前架單元具有一 前架桿及一前車輪，該前架桿是以一末端與下座管一下端 5 在一第一軸樞處形成樞結，該前車輪是設置在前架桿一前 端。該連接組件具有一第一連接件與一第二連接件，該第 一連接件是樞結上座管與前架單元，該第二連接件是可卸 離地與下座管及前架單元連結，使前架單元、上座管與第 一、第二連接件相互限制而相互定位，進而與後架單元反 10 向延展，形成可騎行狀態，當第二連接件卸離前架單元， 該後架單元及座管單元能以第一軸樞為迴轉中心，朝前架 單元迴旋轉動，使上座管在迴旋過程中，受制於第一連接 件朝前架單元一端位移，至後架單元及下座管與前架單元 左、右併置，形成折疊狀態。 15 本新型的功效是能使折疊動作更迅速及順暢。 【實施方式】 本新型之前述以及其他技術内容、特點與功效，在以 下配合參考圖式之較佳實施例的詳細說明中，將可清楚的 明白。 20 參閱圖1、圖2，本新型之可迴旋折疊之自行車的較 佳實施例是包含：一座桿單元1、一後架單元2、一前架單 元3及一連接組件4。 該座桿單元1具有上、下樞接的一上座管11與一下 座管12、一固定在下座管12且相對於前架單元3的樞耳 6 M246266 座13、一固定在上座管11 一下端111的腳座14、一設置 在上座管11上的座墊15，及二固設在上座管11上的樞耳 片16。 該後架單元2具有一概呈三角形的後叉桿21及一後 5 車輪22。該後叉桿21是以一前端211與下座管12固接， 且由下座管12沿平行一中心線L的方向延展，使與中心線 L形成有一間距D。該後車輪22是設置在後叉桿21 —末 端 212 〇 該前架單元3具有一前架桿31、一車頭管32、一前 10 叉桿33、一前車輪34、一轉接座35，及上、下固定在車 頭管32上的一上耳座36與一下耳座37。該前架桿31是 以一末端311與下座管12 —下端121在一第一軸樞A處形 成樞結，及由下座管12沿該中心線L反向於後架單元2延 展，並具有一反向於末端311的前端312。該車頭管32是 15 藉由下耳座37與前架桿32前端312樞接。該前叉桿33是 貫穿車頭管32，並具有供前車輪34設置的一開口端331， 及形成有一車把手332的一端。該轉接座35是固定在前架 桿31上，參閱圖1、圖3、圖4，並具有二相隔一段間距 的耳片351、二分別形成在二耳片351上且面向下座桿12 20 的缺口 352，及二固定在耳片351内側的擋塊353，使二擋 塊353間形成一狹小的通道354。 該連接組件4具有一第一連接件41、一第二連接件 42、一快拆43、一第三連接件44、一第四連接件45及一 墊塊46。 7 M246266 該第-連接件41是樞結座桿單元丨的樞耳片w與扎M246266 新型 Description of the new type: [Technical field to which the new type belongs] The present invention relates to a bicycle, and more particularly to a bicycle that can be folded in a roundabout manner and can be quickly folded in a roundabout manner. 5 [Previous technology] "Bicycle" is currently the lightest, low-consumption, and environmentally-friendly means of transportation. Therefore, the use of bicycles as a means of travel, leisure, and fitness has been widely accepted by consumers and is very popular. Therefore, in addition to enhancing the safety and comfort when riding, consumers are paying more and more attention to the functionality of the 10-car body. Most of the bicycles are fixed and cannot be folded and stored. Therefore, bicycles parked outside are often exposed to wind and sun, and are more susceptible to corrosion and theft. In order to improve the above-mentioned shortcomings, there are quite a few types of folding bicycles currently on the market. Taking a left-right folding bicycle as an example15, it will prevent the folding center from being located in the center of the frame, and there is no way to install shock-absorbing devices. Missing, there is another type of bicycle that folds in a convoluted manner. Because the frame extends in a linear direction, the front and rear wheels interfere with each other after folding. Therefore, the front wheel must be removed from the frame and placed separately. Folding is slow and can cause confusion in use. [New content] Therefore, the object of the present invention is to provide a swivel-foldable bicycle that can be folded quickly and can be equipped with a shock absorber. Therefore, the novel foldable bicycle includes: a lever unit, a rear frame unit, a front frame unit, and a connection assembly. The seatpost unit 5 M246266 has an upper seatpost and a lower seatpost pivotally connected to each other. The rear frame unit has a rear fork rod and a rear wheel, the rear fork rod is fixed to the lower seat tube by a front end, and the rear wheel is disposed at one end of the rear fork rod. The front frame unit has a front frame rod and a front wheel. The front frame rod is formed at a first end with a lower end of the lower seat tube 5 at a first axis pivot. The front wheel is provided at the front frame rod. front end. The connection assembly has a first connection member and a second connection member. The first connection member is a pivot connection between the upper seat tube and the front frame unit, and the second connection member is detachably connected with the lower seat tube and the front frame unit. So that the front frame unit, the upper seat tube and the first and second connecting members are mutually restricted to position each other, and then extend in the opposite direction from the rear frame unit to form a rideable state. When the second connecting member is detached from the front frame unit, the rear The frame unit and the seat tube unit can use the first pivot as the center of rotation to rotate toward the front frame unit, so that the upper seat tube is restrained from being displaced by the first connecting member toward one end of the front frame unit during the turning process to the rear frame unit and the lower portion. The seat tube and the front frame unit are juxtaposed left and right to form a folded state. 15 The effect of this new model is to make the folding movement faster and smoother. [Embodiment] The foregoing and other technical contents, features and effects of the present invention will be clearly understood in the following detailed description of the preferred embodiment with reference to the drawings. 20 Referring to FIG. 1 and FIG. 2, the preferred embodiment of the novel foldable bicycle includes a pole unit 1, a rear frame unit 2, a front frame unit 3, and a connection assembly 4. The seatpost unit 1 has an upper seatpost 11 and a lower seatpost 12 pivoted up and down, a pivot lug 6 fixed to the lower seatpost 12 relative to the front frame unit 3, a M246266 seat 13, and an upper seatpost 11. The foot seat 14 at the end 111, a seat cushion 15 provided on the upper seat tube 11, and two pivot ear pieces 16 fixed on the upper seat tube 11. The rear frame unit 2 has a substantially triangular rear fork rod 21 and a rear 5 wheel 22. The rear fork rod 21 is fixedly connected to the lower seat tube 12 by a front end 211, and is extended by the lower seat tube 12 in a direction parallel to a center line L so that a distance D is formed from the center line L. The rear wheel 22 is provided at the rear fork rod 21-the end 212. The front frame unit 3 has a front frame rod 31, a head tube 32, a front 10 fork rod 33, a front wheel 34, and an adapter 35. And an upper ear seat 36 and a lower ear seat 37 fixed on the head pipe 32 up and down. The front frame rod 31 is formed with a pivot joint at an end 311 and the lower seat tube 12 at a first pivot A, and is extended by the lower seat tube 12 along the center line L to the rear frame unit 2, It has a front end 312 opposite to the end 311. The head pipe 32 is pivotally connected to the front end 312 of the front frame rod 32 via the lower ear seat 37. The front fork rod 33 penetrates the head pipe 32 and has an open end 331 for the front wheel 34 and an end formed with a handlebar 332. The adapter 35 is fixed to the front frame rod 31, as shown in FIG. 1, FIG. 3, and FIG. 4, and has two ear pieces 351 separated by a certain interval, and two ear pieces 351 formed on the two ear pieces 351 and facing the lower seat rod 12, respectively. The notch 352 of 20 and the two stoppers 353 fixed on the inner side of the ear piece 351 form a narrow channel 354 between the two stoppers 353. The connection assembly 4 includes a first connection member 41, a second connection member 42, a quick release 43, a third connection member 44, a fourth connection member 45, and a spacer 46. 7 M246266 The first-connecting piece 41 is the pivot tab w and tie of the pivot seatpost unit 丨
架單元3的轉接座35。 J 參閱圖1、圖3，該第二連接件42在本實施例是一 種避震連桿，並具有與樞耳座13樞結的—化42i，Μ 置在轉接座35 一耳片351内的一前端422。 ίο 該快拆43具有—貫穿第二連接件42前端似且可跨 置在二耳片351缺口 352内的軸桿43卜一穿置在軸桿‘ 上的偏心塊432，及一可迫抵偏心塊432迫壓耳片 固第二連接件42前端422的拉柄433。藉此，該第三 件44與第二連接件42、第—連接件41會彼此相互限制而 相互定位，使後架單元2及前架單^ 3沿座桿單元！反 延展。 該第三連接件44具有一與上座管η固接的-端441 ，及與下座管12上樞耳座13樞結的另一端搬。 15 孩第四連接件45具有一與上耳座％搞結的—前端 451 ’及穿經轉接座35通道说且與第-連接件41轴接的 一後端452。 該墊塊46是固定在第四連接件45鄰近後端452的位 20 置，可迫抵在擔塊353 ±，限制第四連接件45朝轉接座 15移動的距離。 由於5亥第—連接件42會限位前架單元3與後架單元2 ’使前架早7G 3與後架單元2無法轉動，而上座桿η會因 為第三連接件44與第二連接件42、第—連接件41彼此相 互限制而相互定位，因此，該後架單元2的後叉桿以及前 8 M246266 架單元3的前架桿31會沿座桿單元1反向延展且固定不動 ，同時，該第一連接件41會制動第四連接件45後端452 ，使車頭管32獲得定位，形成可騎行狀態。且在騎行過程 中，可藉由前架單元3與後架單元2間的第二連接件42吸 5 收震幅，達到避震效果。 當要折疊自行車時，只須以快拆43的拉柄433鬆釋 偏心塊432，使第二連接件42前端422脫離轉接座35，而 不限位前架桿31，就可以在前架單元3與後架單元2失去 限位關係的情形下，藉由第一連接件41、第三連接件44 φ 10 及第四連接件45的樞動關係，以一手握持前叉桿33上的 車把手332，並略為向上提起前架單元3，同時，以另一手 握持上座桿11上的座墊15並以逆時針方向轉動後架單元 2，參閱圖5、圖6，使後架單元2及座桿單元1以第一軸 樞A為迴轉中心，以旋動方式朝前架單元3轉動。 15 此時，該上座桿11會受制於第一連接件41的長度， 而只能轉移至鄰近前架桿31末端311的位置，且在第一連 接件41轉動的過程中，會朝車頭管32方向推移第四連接 · 件45後端452沿通道354(如圖4)位移，使第四連接件45 前端451推擠車頭管32以順時針方式旋動，並帶動前叉桿 20 33及前車輪34朝後架單元2靠攏。Shelf unit 3's adapter 35. Referring to FIG. 1 and FIG. 3, the second connecting member 42 is a suspension link in this embodiment, and has a -42i which is pivotally connected to the pivot ear seat 13, and is placed on the adapter seat 35 and an ear piece 351. Within a front end 422. ίο The quick release 43 has a shaft 43 that passes through the front end of the second connecting member 42 and can be placed in the gap 352 of the second ear piece 351, an eccentric block 432 that is placed on the shaft, and an eccentric block The eccentric block 432 presses the ear piece to fix the pull handle 433 of the front end 422 of the second connecting member 42. Thereby, the third piece 44, the second connecting piece 42, and the first connecting piece 41 are mutually restricted and positioned with each other, so that the rear frame unit 2 and the front frame unit ^ 3 are along the seat post unit! Anti-extend. The third connecting member 44 has a-end 441 fixedly connected to the upper seat tube η, and the other end pivotally connected to the upper pivot ear seat 13 of the lower seat tube 12. 15 The fourth connecting member 45 has a front end 451 'which is tangled with the upper ear seat and a rear end 452 which passes through the 35 channel of the adapter seat and is axially connected to the first connecting member 41. The pad 46 is fixed at a position 20 adjacent to the rear end 452 of the fourth connecting member 45 and can be forced against the supporting block 353 ± to limit the distance that the fourth connecting member 45 can move toward the adapter 15. Since the 5th connector—42 will limit the front frame unit 3 and the rear frame unit 2 ′, the front frame 7G 3 and the rear frame unit 2 cannot rotate, and the upper seat post η will be connected to the second connector 44 due to the third Piece 42 and the first connecting piece 41 are mutually restricted and positioned with each other, therefore, the rear fork rod of the rear frame unit 2 and the front frame rod 31 of the front 8 M246266 frame unit 3 will extend in the reverse direction along the seat rod unit 1 and be fixed. At the same time, the first connecting member 41 brakes the rear end 452 of the fourth connecting member 45, so that the head pipe 32 can be positioned to form a rideable state. And during the riding process, the second connecting member 42 between the front frame unit 3 and the rear frame unit 2 can absorb 5 shock absorption amplitudes to achieve the shock absorption effect. When the bicycle is to be folded, the eccentric block 432 need only be released with the handle 433 of the quick release 43, so that the front end 422 of the second connecting member 42 can be released from the adapter 35, and the front frame rod 31 is not limited. When the unit 3 and the rear frame unit 2 lose the limiting relationship, the front fork lever 33 is held with one hand by the pivotal relationship of the first connecting member 41, the third connecting member 44 φ 10, and the fourth connecting member 45. Handlebar 332 and slightly lift up the front frame unit 3, while holding the seat cushion 15 on the upper seat post 11 with the other hand and turn the rear frame unit 2 counterclockwise, see FIG. 5 and FIG. 6 to make the rear frame The unit 2 and the seat post unit 1 use the first pivot A as the rotation center, and rotate toward the front frame unit 3 in a rotating manner. 15 At this time, the upper seat post 11 will be restricted by the length of the first connecting member 41, and can only be transferred to a position adjacent to the end 311 of the front frame rod 31. During the rotation of the first connecting member 41, it will face the headstock. Push the fourth connection in the 32 direction, and the rear end 452 of the fourth connection member 452 is displaced along the channel 354 (as shown in FIG. 4), so that the front end 451 of the fourth connection member 45 pushes the head tube 32 to rotate clockwise, and drives the front fork lever 20 33 and The front wheels 34 are moved closer to the rear frame unit 2.
參閱圖2，由於該等下座管12下端121、轉接座35 、上耳座36、下耳座37、樞耳座13、樞耳片16分別與中 心線L形成有偏離7度的傾斜角度，因此，雖然該座桿單 元1、前架單元3及連接組件4是藉由前述元件沿中心線L 9 M246266 相互連結，卻會在折疊的過程中，使座桿單元1、前架單 元3及連接組件4逐漸偏離中心線L約7度，而不會與後 架單元2及下座桿12有干涉的情形。 藉此，參閱圖7，當後架單元2及下座桿12旋動至 5 與前架單元3併列時，該前架單元3的前車輪34可容納至 後架單元2與中心線L所形成的間距D間，形成折疊狀態 ，及以前、後車輪34、22及上座桿11上的腳座14立置在 平面上，方便儲放。 值得一提的是，該折疊後的自行車可藉由一扣具（圖 1〇 未示）夾扣前、後車輪34、22，使前、後車輪34、22相互 緊鄰，避免提行時有分開的情形。或如圖1所示，以一繫 帶5繫住第二連接件42前端422，避免第二連接件42前 端422脫離前架桿31時，有任意晃動的情形。 據上所述可知，本新型之可迴旋折疊之自行車具有下 15 列優點及功效： 由於本新型是以迴旋的方式折疊，除了有別於以往對 折方式外，更可省去拆卸前車輪的時間，使折疊動作更迅 速，且前架單元3與後架單元2間可安裝避震縣吊系統， 提供更舒適的騎乘感受。 20 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 範圍及新型說明書内容所作之簡單的等效變化與修飾，皆 應仍屬本新型專利涵蓋之範圍内。 【圊式簡單說明】 10 M246266 圖1是一正視圖，說明本新型可迴旋折疊之自行車的 較佳實施例； 圖2是一頂視圖，說明該較佳實施例中一後架單元偏 離一中心線的情形； 5 圖3是一立體圖，說明該較佳實施例中一第二連接件 以一快拆與一轉接座銜接的情形； 圖4是一立體圖，說明該較佳實施例中第一連接件與 一第四連接件連動的情形； 圖5是一正視圖，說明該較佳實施例迴旋折疊的狀況 〇 ; 圖6是一正視圖，說明該較佳實施例迴旋折疊的狀況 ;及 圖7是一正視圖，說明該較佳實施例中一前架單元與 後架單元折疊後相互併置的情形。 11 M246266 【圖式之主要元件代表符號簡單說明】 卜…… ……"座桿單元 * * * Λ * « * ί ……轉接座 1卜" ……"上座桿 351…… —…耳片 111… "……下端 352…… ...... 0 .”"下才旱 353…… ……播塊 121 - ……"下端 354…… ……通道 13…… ……"樞耳座 4‘……… ……連接組件 ^ S! <Γ ί- » ΐ ΐ 4 1 ******** ……第一連接件 15…… ******** ……第二連接件 2”…,” …"…後架單元 421…… ……末端 21…… "……後叉桿 422…… ……前端 211 …， ……〃前端 3 ♦*♦*#*%# ……快拆 212 …， "……後端 431…… ......車由桿 22…… ……"後車輪 432…… ……偏心塊 "……前架單元 4*3 3 ****** ......拉柄 31 "… ……〃前架桿 ******** ……第三連接件 31L·… ……”末端 441，"*»* ……一端 312 ……"前端 442…… ……另一端 3 ¥***»* 45……" ……第四連接件 33…… ……“前叉桿 451…… ……前端 33L·… ……"開口端 452…… ……後端 332 — .....*"車把f 9*4***** ……塾塊 34…… ……-前車輪 5………* ……繫帶 12Referring to FIG. 2, the lower end 121 of the lower seat tube 12, the adapter seat 35, the upper ear seat 36, the lower ear seat 37, the pivot ear seat 13, and the pivot ear piece 16 are respectively inclined from the center line L by 7 degrees. Angle, therefore, although the seatpost unit 1, the front frame unit 3, and the connection assembly 4 are connected to each other along the center line L 9 M246266 by the aforementioned components, the seatpost unit 1, the front frame unit will be made during the folding process. 3 and the connecting assembly 4 gradually deviate from the center line L by about 7 degrees without interference with the rear frame unit 2 and the lower seat post 12. Therefore, referring to FIG. 7, when the rear frame unit 2 and the lower seat post 12 are rotated to 5 to be side by side with the front frame unit 3, the front wheels 34 of the front frame unit 3 can be accommodated in the rear frame unit 2 and the centerline L. The formed distance D forms a folded state, and the front and rear wheels 34 and 22 and the foot seat 14 on the upper seat post 11 are erected on a plane, which is convenient for storage. It is worth mentioning that the folded bicycle can fasten the front and rear wheels 34 and 22 by a fastener (not shown in Fig. 10), so that the front and rear wheels 34 and 22 are close to each other, avoiding the possibility of lifting Separate situation. Alternatively, as shown in FIG. 1, the front end 422 of the second connecting member 42 is fastened by a tie 5 to prevent the front end 422 of the second connecting member 42 from shaking arbitrarily when it is detached from the front frame rod 31. According to the above, the new type of foldable bicycle has the following 15 advantages and effects: Because the new type is folded in a rotating manner, in addition to being different from the previous folding method, it can save the time of disassembling the front wheels. To make the folding action faster, and a suspension county suspension system can be installed between the front frame unit 3 and the rear frame unit 2 to provide a more comfortable riding experience. 20 However, the above are only the preferred embodiments of the new model. When the scope of implementation of the new model cannot be limited by this, that is, the simple equivalent changes and modifications made according to the scope of the patent application of the new model and the content of the new specification , All should still fall within the scope of this new patent. [Simple explanation] 10 M246266 FIG. 1 is a front view illustrating a preferred embodiment of the novel foldable bicycle; FIG. 2 is a top view illustrating a rear frame unit deviating from a center in the preferred embodiment 5 FIG. 3 is a perspective view illustrating a situation in which a second connecting member is connected with a adapter seat by a quick release in the preferred embodiment; FIG. 4 is a perspective view illustrating the first embodiment in the preferred embodiment A connection member and a fourth connection member are linked; FIG. 5 is a front view illustrating the condition of the folding of the preferred embodiment; FIG. 6 is a front view illustrating the condition of the folding of the preferred embodiment; And FIG. 7 is a front view illustrating a case where a front frame unit and a rear frame unit are folded side by side in the preferred embodiment. 11 M246266 [Brief description of the main components of the diagram] [...] " Seat post unit * * * Λ * «* ί ... Adapter seat 1 " ... " Upper seat post 351 ... … Ear piece 111… " ... the lower end 352 ... ...... 0. "&Quot; The lower end is dry 353 ... ...... Broadcasting block 121-... " The lower end 354 ... ...... Channel 13 ... …… " Pivot ear seat 4 '…………… Connecting assembly ^ S! ≪ Γ ί- »ΐ ΐ 4 1 ******** …… 第一 连接 件 15 …… **** **** …… Second connection 2 ”…,”… &…; rear frame unit 421…… end 21……… fork bar 422…… front 211…,… 〃 Front end 3 ♦ * ♦ * # *% # …… Quick release 212…, " …… Rear end 431 …… …… Car lever 22 …… …… " Rear wheel 432 …… eccentric Block " ...... Front frame unit 4 * 3 3 ****** ...... Pull handle 31 " ...... 〃Front frame lever ******** …… Third connection 31L ·…… ”end 441, " *» *… one end 312 …… " front end 442…… The other end 3 ¥ *** »* 45 …… " …… Fourth connecting piece 33 …… ……“ Fork rod 451 …… …… Front end 33L ·…… " Open end 452 …… …… Rear Duan 332 — ..... * " Handlebar f 9 * 4 ***** …… Block 34 …… …… -Front wheel 5 ………… * …… Tie 12