1291420 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種花轂棘輪裝置，特別是指一種可 立曰大跳脫阻力的花轂棘輪裝置。 【先前技術】 傳統的自行車是將棘輪機構設計在後輪’而圖丨顯示 現有一種變速自行|1是將棘輪機構設計在對應曲柄的^ 身^該變速自財！包含—車身u、—圍繞—軸線旋轉 安义於°亥車身11的後輪12、一間隔該後輪12安裝於該 車身11的前輪13、一安裝於該後輪12的變速單元14,二 ^ 。又於該車身11並連接該變速單元14的腳踏機構15。 该腳踏機構15包括—位於該前、後輪ΐ3、Μ間設置於該 車身11的棘輪裝Ϊ 2、二根可由使用者帶動的曲柄151、、: =置於該棘輪裝置2 _輪.152、—套掛於該鏈輪152與該 變逮單元14的鏈们53。該變速單元Η具有多片大小不一 :鏈，片’可供鍊條！53移位套掛，達到變速目的，且該 交速單7L 14與後輪12之間並未設置棘輪機構，兩者是呈 一體連動關係。 閱圖2與圖3 ’該棘輪裝置2具有-可旋轉地設置於 縣身11且二端固接該曲柄151的心軸21、—可隨該心轴 ^旋轉的驅動座22、一離合單元23以及一從動單元2“ 二，動座22具有四個環設於_外周面的限位槽，該離 單凡23 &括四個分別樞接於該等限位槽⑶巾的擎爪 乂及將忒掣爪231部分恆推出該限位槽221的彈性 1291420 元件232。該從動單元24包括—圍繞該轴線且可旋轉地安 裝於該驅動座22的Μ於，— η Μ輪24卜_輪241具有—供該鏈輪 152固設的本體242，以月炙四 夕數個％設於該本體242 一内 面並供該等掣爪231單向連動的棘齒243。 參閱圖1、圖2、FI1 m 圖3，使用者帶動該等曲柄151沿一 旋轉方向Λ旋轉，而動力依序由該心 該掣爪231、該棘齒243 …驅動座22、 條⑸、該變速單元U，最Iti 輪152、該鏈 取後傳遞到達該後輪12，使該變 ^订車U進。當制者不帶動該等曲柄i5i時，該後 輪12因變速自行車！的慣 留- Η ^ ηΜ且動力依序由該變速 …、該腳踏機構15的鏈條153、該鏈輪.…、該本體 242，最後到達該棘齒243。因 ^ " Μ „ ^ 口使用者使该等曲柄151不 轉，所以该驅動座22與該等掣爪231不繞 棘齒243沿該旋轉方向Α 、、疋轉以 231。 以很小的阻力跳脫滑過該等掣爪 該變速自行車丨_輪裝置2是絲於 ===到騎乘者停腳滑行時仍可變速及傳動反 逆订⑺仃時，假設剛好羊一 故障時使該棘齒243無法 /、 立即卡# 脫料爪231，會使該鏈條153 ‘二 後輪12也立即停止轉動，如同緊 w本丨】車一般，將造成該變 系 全性不佳的缺失。以“車1失控滑倒，導致有安 而若將該後輪12與變诘 文速早70 14之間也裝上棘輪機構 1291420 / f7傳，.先的棘輪後祀轂），打破兩者一體連動的關係，則當 條153突然卡住時，該後輪12可藉由棘輪機構產生跳 、轉不會產生緊急剎車的狀況。理論上此對策可以解 决削述女全性的問題，卻破壞了“滑行時仍可變速，，的基 本功^因騎乘者在變速時，必須使該鍊條153持續運轉 ’可是變速時撥鏈器會施予該鏈條153 一阻力，則該後輪 12極易藉由棘輪機構而跳脫，使該鏈條153停滞而 敗或脫鏈。 、 〜士故如何提高該變速自行車！的安全性，又能保有“滑 二的功能，實乃相關業者亟待解決的課題。 的可i因^ ’本發明H即在提供—種可以提高安全性 的了增大跳脫阻力的花轂棘輪裝置。 於是’本發明可增大職阻力的花轂棘輪裝置適合安1291420 IX. Description of the Invention: [Technical Field] The present invention relates to a flower hub ratchet device, and more particularly to a flower hub ratchet device capable of establishing a large jump resistance. [Prior Art] The traditional bicycle is designed with the ratchet mechanism on the rear wheel. The figure shows that there is a shifting self-adhesive|1 is to design the ratchet mechanism in the corresponding crank. a rear wheel 12 that includes a body u, a center axis about the axis, and a rear wheel 13 that is mounted on the body 11 and a shifting unit 14 that is mounted to the rear wheel 12, ^. Further, the vehicle body 11 is connected to the pedal mechanism 15 of the shifting unit 14. The pedal mechanism 15 includes a ratchet frame disposed on the front and rear rims 3 and the vehicle body 11, and two cranks 151 that can be driven by the user, and are placed in the ratchet device 2 _ wheel. 152. A set of chains 53 hooked to the sprocket 152 and the variable arresting unit 14. The shifting unit has a plurality of pieces of different sizes: a chain, a piece 'for the chain! The 53 sleeve is hung to achieve the purpose of shifting, and the ratchet mechanism is not disposed between the speed dial 7L 14 and the rear wheel 12, and the two are in a unitary interlocking relationship. 2 and FIG. 3 'The ratchet device 2 has a spindle 21 rotatably disposed on the county body 11 and fixed to the crank 151 at both ends, a drive base 22 rotatable with the spindle ^, and a clutch unit 23 and a driven unit 2" Second, the movable seat 22 has four ring-shaped limiting grooves provided on the outer peripheral surface of the outer ring surface, and the two separate shafts 23 & four are respectively pivotally connected to the limit groove (3) The pawl and the portion of the pawl 231 are constantly pushed out of the resilient 1291420 element 232 of the limiting slot 221. The driven unit 24 includes - a 围绕 Μ around the axis and rotatably mounted to the driver seat 22 The wheel 241 wheel 241 has a body 242 for the sprocket 152 to be fixed, and a ratchet tooth 243 which is provided on the inner surface of the body 242 and which is unidirectionally linked by the claws 231. Figure 1, Figure 2, FI1 m Figure 3, the user drives the cranks 151 to rotate in a direction of rotation, and the power is sequentially driven by the claws 231, the ratchet teeth 243 ... the seat 22, the strip (5), the The shifting unit U, the most Iti wheel 152, the chain is transferred and passed to the rear wheel 12, so that the modified car U enters. When the manufacturer does not drive the crank i5i, the rear wheel 1 2 Due to the shifting bicycle! The habit of - Η ^ η Μ and the power is sequentially changed by the shift..., the chain 153 of the pedal mechanism 15, the sprocket ..., the body 242, and finally reaches the ratchet 243. Because ^ " Μ ^ The user of the mouth makes the cranks 151 not rotate, so the driver seat 22 and the pawls 231 are not turned around the ratchet teeth 243 in the direction of rotation, and are turned 231. Skip off the claws with a small resistance. The shifting bicycle 丨 wheel device 2 is silked at === until the rider stops pedaling and still shifts and the drive reverses (7) ,, assuming just a sheep In the event of a failure, the ratchet 243 can not / / immediately card # remove the claw 231, the chain 153 'two rear wheels 12 also immediately stop rotating, as the car is generally tight, will cause the system is not full Good missing. "The car 1 is out of control and slipped, resulting in an ampoule. If the rear wheel 12 is changed to a speed of 70 14, the ratchet mechanism is also loaded with the ratchet mechanism 1291420 / f7. The first ratchet rear hub" is broken. In the integrated relationship, when the bar 153 suddenly gets stuck, the rear wheel 12 can generate a situation in which the ratchet mechanism generates a jump and does not generate an emergency brake. In theory, this countermeasure can solve the problem of clipping the female fullness, but It destroys the basic function of "the speed can be changed while sliding, because the rider must keep the chain 153 running during the shifting". However, when the shifting gear shifts the chain 153 to a resistance, the rear wheel 12 pole It is easy to jump off by the ratchet mechanism, so that the chain 153 is stagnant and unsuccessful. ~ ~ How to improve the shift bike! The safety and the ability to retain the function of "slippery two" is a problem that the relevant industry needs to solve. The invention is based on the fact that H is providing a kind of flower hub that can improve the safety and increase the resistance of jumping. Ratchet device. Therefore, the flower hub ratchet device which can increase the occupational resistance of the present invention is suitable for safety.
扁於一自行車，該自行車包含一一 I 後輪、一變球里…,以於§亥車身的 的腳踏;iiM、 1 於該車身並連接該變速單元 P踏機構。該可增大跳脫阻力的花轂棘輪裝置包含一從 該I::::::元，以及一驅動單元。該從動單元連接 有學二、一可繞一軸線旋轉的從動座’該從動座具 衣二於-外周面的多數個限位槽與多數個阻力槽。 該離合單元包括多數個分別位於該等限位槽中的擎爪 至>、一彈性元件，以及多數個分 力件。备一制/ 寺阻力槽的阻 $爪具有一樞接於該限位槽中的樞接部，以及 柩接部延伸的喃合部，該彈性元件將該喃合部恆推 1291420 出該限位槽。 元連接該變速單元，並包括—圍繞該轴線且 σ疋i *裝於顧動座的棘輪，該棘輪具有_本體以 多數個環設於該本體—内周面的棘齒。每_棘齒 受該喃合部帶動的推動面、一可將該唾合部推向該限：: 的屋制面，以及一連接該推動面與該磨制面並可觸及該阻 力件的齒尖。Flat on a bicycle, the bicycle includes an I rear wheel, a change of the ball... for the pedal of the body of the hex; iiM, 1 is connected to the body and connected to the shifting unit P stepping mechanism. The flower hub ratchet device that increases the trip resistance includes a slave I:::::: element, and a drive unit. The driven unit is connected to a driven seat that is rotatable about an axis. The driven seat has a plurality of limiting slots on the outer peripheral surface and a plurality of resisting grooves. The clutch unit includes a plurality of pawls to > respectively in the limit slots, an elastic member, and a plurality of component members. The resistance of the one-piece/distance resistance groove has a pivoting portion pivoted in the limiting groove, and a merging portion extending from the splicing portion, and the elastic element constantly pushes the merging portion to the limit of 1291420 Bit slot. The unit is coupled to the shifting unit and includes a ratchet wheel mounted around the axis and σ疋i* mounted to the driver seat, the ratchet having a ratchet body with a plurality of rings disposed on the inner peripheral surface of the body. Each _ ratchet is driven by the urging portion, and the shed portion can be pushed toward the limit:: a roof surface, and a connecting surface and the grinding surface and the resistance member can be touched Tip.
該後輪因慣性產生 以帶動該從動單元 當該腳踏機構失靈不正常停止時， 的巨大力道可使該阻力件跳脫該齒尖， 相對該驅動單元轉動進而提高安全性。 【實施方式】 有關本發明之前述及其他技術内容、特點與功效，在 以下配合參考圖式之二個較佳實施例的詳細說明中，將可 清楚的呈現。The rear wheel is driven by inertia to drive the driven unit. When the pedal mechanism fails to stop abnormally, the large force can cause the resistance member to trip off the tooth tip and rotate relative to the driving unit to improve safety. The above and other technical contents, features and effects of the present invention will be apparent from the following detailed description of the preferred embodiments of the invention.
在本發明被詳細描述之前，要注意的是，在以下的說 明内谷中，類似的元件是以相同的編號來表示。 本發明可增大跳脫阻力的花轂棘輪裝置之第一較佳實 施例適合安裝於如圖1所示的一自行車丨，該自行車1包含 一車身11、一安裝於該車身u的後輪12、一變速單元14 ，以及一設於該車身11並連接該變速單元14的腳踏機構 15。參閱圖4、圖5、圖6,該可增大跳脫阻力的花轂棘輪 裝置包含一心軸單元3、一從動單元4、一離合單元5，以 及一驅動單元6。 5亥〜軸單元3包括一具有一軸線b的軸本體3 1、一設 8 1291420 置於該軸本體31 —端的第—軸承32，以及-設置於該轴本 體31另一端的第二軸承33。 4從動單元4包括一可繞該軸線B旋轉地設置於該第 一軸承33的從動座41，以及一可繞該軸線B旋轉地設置於 〜第軸承32並連接該後輪12的轂殼42。該從動座41固 口又於汶|又成42 —側，並具有環設於一外周面的三個限位槽 411 ” 一個阻力槽412，以及一形成於該從動座Μ外周面沿 控向朝該軸線B凹設的容件環溝413。每—阻力槽412具有 取部近4轴、線B的槽# 414，f亥容件環溝413肖該等限位 槽411與阻力槽412相連通。 a單元5包括二個分別位於該等限位槽411中的掣 爪51 套设於該容件環溝413中彈性元件52，以及三個 分別位於該等阻力槽412的阻力件53。每一掣爪51具有一 樞接於該限位# 411中的樞接部5ΐι，以及一自該樞接部 511延伸的嚙合部512。該彈性元件52為一 c型彈簧，並 -掛於該等掣爪51的樞接部511將該嚙合部512恆推出該 限位軋411。该阻力件53為一滾軸，並平行該軸線b而躺 置於"亥阻力槽412中，且受該彈性元件 52軸向限位。 該驅動單^ 6供該變速單元14的多數鏈輪片（圖未示 )套5又，亚包括一圍繞該軸線B且可旋轉地安裝於該從動 "A力棘輪61，该棘輪61具有一本體611以及多數個環設 於該本體611 —内周㈣棘# 612。每一棘!t 612具有一順 轉時可推動該嚙合部512的推動面613、一逆轉時可將該嚙 合部512推向該限位槽411的壓制面614，以及一連接該推 1291420 動面613與該壓制面614並可觸及該阻力件53的齒尖615 ，该齒尖615與該槽谷414間的徑向距離不大於該阻力件 5 3的直徑。 芩閱圖4、圖6及圖1，當使用者踩踏該自行車丨的腳 杳機構15運作日守，旎將動力依序自該變速單元14、該棘輪 61的推動面613、該掣爪51、該從動座41、該轂殼42，最 後傳遞至讜後輪12，該後輪12轉動使該自行車丨前進。Before the present invention is described in detail, it is noted that in the following description, similar elements are denoted by the same reference numerals. The first preferred embodiment of the flower hub ratchet device of the present invention for increasing the jumping resistance is suitable for mounting on a bicycle raft as shown in FIG. 1. The bicycle 1 includes a body 11 and a rear wheel mounted to the body u. 12. A shifting unit 14 and a pedal mechanism 15 disposed on the body 11 and coupled to the shifting unit 14. Referring to Figures 4, 5 and 6, the flower hub ratchet device for increasing the tripping resistance comprises a spindle unit 3, a driven unit 4, a clutch unit 5, and a drive unit 6. The 5H-axis unit 3 includes a shaft body 3 1 having an axis b, a first bearing 32 disposed at the end of the shaft body 31, and a second bearing 33 disposed at the other end of the shaft body 31. . The driven unit 4 includes a driven seat 41 rotatably disposed about the axis B of the first bearing 33, and a hub rotatably disposed about the axis B to the first bearing 32 and connected to the rear wheel 12. Shell 42. The driven seat 41 has a fixed opening and a 42-side, and has three limiting slots 411 ” ringing on an outer peripheral surface”, a resistance groove 412, and a peripheral groove formed on the outer periphery of the driven seat Controlling the container ring groove 413 recessed toward the axis B. Each of the resistance grooves 412 has a groove 4 414 which takes a portion near the 4 axis and the line B, and a limit groove 411 and a resistance groove 413 The slot 412 is connected to each other. The unit 5 includes two jaws 51 respectively located in the limiting slots 411, and the elastic members 52 disposed in the container ring groove 413, and three resistances respectively located in the resistance grooves 412. Each of the claws 51 has a pivoting portion 5ΐ pivoted in the limit #411, and an engaging portion 512 extending from the pivoting portion 511. The elastic member 52 is a c-shaped spring, and The pivoting portion 511 hooked on the claws 51 pushes the engaging portion 512 out of the limit rolling 411. The resisting member 53 is a roller and lies parallel to the axis b and lies in the "coal resistance groove 412 And being axially constrained by the elastic member 52. The driving unit 6 is provided with a plurality of sprocket pieces (not shown) of the shifting unit 14 and further includes a circle around the axis B. Rotatablely mounted to the driven "A force ratchet 61, the ratchet 61 has a body 611 and a plurality of rings are disposed on the inner body 611 - inner circumference (four) spine # 612. Each spine! t 612 has a forward rotation The pushing surface 613 of the engaging portion 512 can be pushed, and the engaging portion 512 can be pushed toward the pressing surface 614 of the limiting slot 411, and the pressing surface 613 and the pressing surface 614 can be connected to the pressing surface 614 The tooth tip 615 of the resistance member 53 has a radial distance between the tooth tip 615 and the groove 414 not greater than the diameter of the resistance member 53. Referring to Figures 4, 6 and 1, when the user steps on the bicycle 丨The pedal mechanism 15 is operated, and the power is sequentially transmitted from the shifting unit 14, the pushing surface 613 of the ratchet 61, the pawl 51, the driven seat 41, the hub shell 42, and finally to the rear wheel. 12. The rear wheel 12 rotates to advance the bicycle.
、參閱圖4、® 7及圖！，當使用者不踩踏該自行車i的 腳踏機構15時’該自行車！因為慣性前進產生的動力依序 自該後輪12、該轂殼42、該從動座41、該阻力件53、該 棘輪61的#尖615、該變速單元14、最後傳遞至該腳踏機 構15的鏈條153。 时_此時，若該腳踏機構15不正常停止時，連帶使該變速 單凡14與棘輪61停止轉動，而該後輪丨2慣性產生的巨大 ^道卻可帶動該阻力件53跳脫該齒尖615，以帶動該從動See Figure 4, ® 7 and Figure! When the user does not step on the pedal mechanism 15 of the bicycle i, the bicycle! The power generated by the inertia advances sequentially from the rear wheel 12, the hub shell 42, the driven seat 41, the resistance member 53, the #tip 615 of the ratchet 61, the shifting unit 14, and finally to the pedal mechanism. 15 chain 153. At this time, if the pedal mechanism 15 is not normally stopped, the shifting unit 14 and the ratchet 61 are stopped to rotate, and the large amount of inertia generated by the rear wheel rim 2 can drive the resisting member 53 to trip. The tooth tip 615 to drive the slave
早兀4相對該驅動單元6轉動，該後輪12將繼續以較大的 阻力轉動使該自行車1穩定下來。 1本發明可增大跳脫阻力的花較棘輪裝置具有以下的功 、㈣透過該可增大跳脫阻力的花穀棘輪裝置，該 腳:412不再與該變速單元14直接連接在—起，因此當該 機構15瞬間停止時，該從動單元4仍可相對該驅動單 動’因此該後輪12不會發生完全停止而產生打滑跌 1、^況，因而達到提高安全性的功效。 10 1291420 二、藉由該等阻力件53增大職阻力 動該腳踏單元15時，該等阻力 冑用者不作 仵5 3仍此v動該驅動單 6 轉動’且鏈條153不會因 動早兀 力而停滯，因此該變 速早兀14也能進行變速 ” F叩運到滑仃時仍可變速 的功效。 多閱圖8’本發明可增大跳脫阻力的花較棘輪裝置之第 二較佳實施例大致與該該第一較佳實施例相同，其不同的 地方是該離合單元5的彈性元件52數目是三個，該從動座 41具有環設於—外周面的三個限位槽川與三個阻力槽412 。每一彈性元件52是採彈片型態，其相反二端分別抵住所 對應的該限位槽411與該掣爪51，使該掣爪51能單向連動 該驅動單元6。藉此，同樣可以達到該第_實_所述的功 效0 准以上所述者，僅為本發明之較佳實施例而已，當不 能以此限定本發明實施之範圍，即大凡依本發明申請專利 範圍及發明說明内容所作之簡單的等效變化與修飾，皆仍 屬本發明專利涵蓋之範圍内。 【圖式簡單說明】 圖1是一側視圖，說明習知一種變速自行車； 圖2是一剖視後視圖，說明該變速自行車一腳踏機構 省略一鏈條； 圖3是一剖視側視圖，說明該腳踏機構的内部構造； 圖4是一剖視前視圖，說明本發明可增大跳脫阻力的 才匕較棘輪裝置的一第一較佳實施例； 1291420The early weir 4 is rotated relative to the drive unit 6, and the rear wheel 12 will continue to rotate with greater resistance to stabilize the bicycle 1. 1 The flower of the present invention which can increase the jumping resistance has the following work compared with the ratchet device, and (4) the flower ratchet device which can increase the jumping resistance, the foot: 412 is no longer directly connected to the shifting unit 14 Therefore, when the mechanism 15 is momentarily stopped, the driven unit 4 can still be single-actuated with respect to the drive, so that the rear wheel 12 does not completely stop and the slippage is caused, thereby achieving the effect of improving safety. 10 1291420 2. When the pedal unit 15 is moved by the resistance member 53 to increase the resistance, the resistance is not used by the user 5, and the drive unit 6 is rotated, and the chain 153 is not moved. It is stagnant as early as the force, so the speed can be shifted as early as 14" F叩 is still able to shift speed when it is transported to the skid. More on Figure 8', the invention can increase the jumping resistance of the flower compared to the ratchet device The second preferred embodiment is substantially the same as the first preferred embodiment, except that the number of the elastic members 52 of the clutch unit 5 is three, and the driven seat 41 has three rings disposed on the outer peripheral surface. The limiting slot and the three resistance slots 412. Each of the elastic elements 52 is in the shape of a spring, and the opposite ends thereof respectively abut the corresponding limiting slot 411 and the claw 51, so that the claw 51 can be unidirectional The drive unit 6 is linked to the above, and the above-mentioned efficiencies are also achieved, which are only the preferred embodiments of the present invention, and the scope of the present invention cannot be limited thereto. That is, the simple equivalent of the scope of the patent application and the description of the invention according to the present invention Variations and modifications are still within the scope of the present invention. [Simplified Schematic] FIG. 1 is a side view illustrating a conventional bicycle; FIG. 2 is a rear elevational view of the bicycle FIG. 3 is a cross-sectional side view showing the internal structure of the pedal mechanism; FIG. 4 is a cross-sectional front view showing the one of the ratchet device capable of increasing the jumping resistance of the present invention. First preferred embodiment; 1291420
/圖5是該第一較佳實施例的一局部立體分解圖， 從動座、一離合單元以及一驅動單元 夕圖6是該第—較佳實施例的—局部側視圖， 夕數個推動面傳遞至多數個掣爪 說明動力自三個阻力件傳 圖7是一類似圖6的視圖 遞至一棘輪的多數個齒尖；以及 圖8是一局部側視圖，說明本發明可增大跳脫阻力的 花轂棘輪裝置的一第二較佳實施例。/ Figure 5 is a partial exploded perspective view of the first preferred embodiment, the driven seat, a clutch unit and a driving unit are shown in Fig. 6 as a partial side view of the first preferred embodiment. The transfer of the face to the plurality of jaws indicates that the power is transmitted from the three resistance members. FIG. 7 is a view similar to that of FIG. 6 and is applied to a plurality of tooth tips of a ratchet; and FIG. 8 is a partial side view illustrating that the present invention can increase the jump. A second preferred embodiment of the drag-resisting flower hub ratchet device.
12 1291420 【主要元件符號說明】12 1291420 [Major component symbol description]
3………·心軸單元 3 1………轴本體 32·…··…第一軸承 33*·-…··第二軸承 4 .........•從動單元 41........從動座 411 ··…··限位槽 412 .......阻力槽 413……·容件環溝 414 ·……槽谷 42*……·*轂殼 5 .......…離合單元 51.........掣爪 511……·樞接部 512 ··••…嚙合部 52·……··彈性元件 53.........阻力件 6 ..........驅動單元 61 ••……·棘輪 611 .......本體 612 —…棘齒 613……·推動面 614.......壓制面 615……齒尖 B · ......…軸線3.........·Mandrel unit 3 1.........shaft body 32·...·...first bearing 33*·-...·second bearing 4 .......... slave unit 41. ....... driven seat 411 ·····limit groove 412 ....... resistance groove 413...·receiving ring groove 414 ·...... trough 42*......·* hub Shell 5 ..... clutch unit 51 ......... claw 511 ... · pivoting portion 512 ··••... meshing portion 52·...··elastic element 53.. .......resistance member 6 .......... drive unit 61 ••...·ratchet 611 . . . body 612 —... ratchet 613 ...· push surface 614 .......pressing surface 615... tooth tip B · ......... axis
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