[go: up one dir, main page]

TW201000360A - Sprocket structure - Google Patents

Sprocket structure Download PDF

Info

Publication number
TW201000360A
TW201000360A TW97123730A TW97123730A TW201000360A TW 201000360 A TW201000360 A TW 201000360A TW 97123730 A TW97123730 A TW 97123730A TW 97123730 A TW97123730 A TW 97123730A TW 201000360 A TW201000360 A TW 201000360A
Authority
TW
Taiwan
Prior art keywords
sprocket
joint
extension
items
fixed
Prior art date
Application number
TW97123730A
Other languages
Chinese (zh)
Other versions
TWI338655B (en
Inventor
Cheng-Xun Jiang
Original Assignee
Tien Hsin Industries Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tien Hsin Industries Co Ltd filed Critical Tien Hsin Industries Co Ltd
Priority to TW97123730A priority Critical patent/TW201000360A/en
Publication of TW201000360A publication Critical patent/TW201000360A/en
Application granted granted Critical
Publication of TWI338655B publication Critical patent/TWI338655B/zh

Links

Landscapes

  • Gears, Cams (AREA)

Abstract

A sprocket structure of the invention comprises a first sprocket set which comprises a sprocket support member, a first sprocket and a second sprocket. The sprocket support member has an engaging portion and a locking portion. The engaging portion is provided for fitting with flywheels of a bicycle. The locking portion is extended and formed on an external diameter of the engaging portion. The locking portion is provided with a plurality of first securing portions and second securing portions. The first sprocket is provided with a plurality of first connection portions disposed together with the first securing portions. The second sprocket is provided with a plurality of second connection portions disposed together with the second securing portions. Further, the first sprocket and the second sprocket are arranged on one side of the locking portion respectively.

Description

201000360 九、發明說明: 【發明所屬之技術領域】 本發明係有關一種鏈輪結構,特別係指一種應用於自行車鏈輪之強化 輪結構者,並利用單軸、單側、單設置之模式,將鏈輪結合為鏈輪組,以 增加鏈輪組整體強度。 【先前技術】 按,台灣為世界最大自行車製造國家,台灣製造之高品質自行車更為 世人所讚譽,由於週休二日國人開始重視休閒活動,政府及民間機構推廣 自行車運跡遺餘力’因此自行車運動在_蔚為風潮,自行車不僅僅為 交通工具,更是—觀賽活動,自行車跡在速度及時間的嚴苛考驗下, 自行車之·^朝雜量化及高強度之方向發展,但強度往往與重量成正 比^何在高強度與輕量化之間取得平衡點,—直是自行車產_寺解決 之課題’在自行車獅及產業蓬勃發展之帶動下,各婦合人體卫學之設 计、咼強度結構及輕量化的自行車亦相繼問市。 support member f〇r a bicycle sprocket 構,其至少包含一次組件,該次組件 習用自行車鏈輪結構,請參閱美國專利第713號『如〇(細 assembly』’ 一種自行車鏈輪結201000360 IX. Description of the invention: [Technical field of the invention] The present invention relates to a sprocket structure, in particular to a reinforcement wheel structure applied to a bicycle sprocket, and adopts a single-axis, single-side, single-setting mode. The sprocket is combined into a sprocket set to increase the overall strength of the sprocket set. [Prior Art] According to Taiwan, Taiwan is the world's largest bicycle manufacturing country. The high-quality bicycles made in Taiwan are more praised by the world. Because the Chinese people began to pay attention to leisure activities on the 2nd week of the week, the government and private organizations promoted the bicycle legacy. In the _ Wei is a wave, bicycles are not only for transportation, but also for watching events. Bicycle tracks are developed under the rigorous test of speed and time. The weight is proportional to the ratio between the high intensity and the light weight. It is the subject of the bicycle production _ temple solution. Under the driving force of the bicycle lion and the industry, the design of the women's health and the strength of the cockroach Structures and lightweight bicycles have also been asked. Support member f〇r a bicycle sprocket structure, which comprises at least one component, the sub-assembly of the bicycle sprocket structure, see U.S. Patent No. 713, "Russian (fine assembly)"

固’再與自行車飛輪 ;透過上述可知習用 201000360 之兩=.ΓΓΓ部關—軸心,將兩鏈輪固定於鏈輪切元件 之兩側,然而,此種單-轴心與雙鏈輪之雙重峡,對鎖固部Κ 2 相虽大之負擔,因自行車執行換檔動作時,單一袖心部 承生 麵位齒輪之交替連動,且換檔瞬間係會產生之強大力道,當翠承又兩 期受雙鏈輪交替連動,極易產生結構疲勞。 *軸心長 疋以,針對上述習用自行車鏈輪結構所存在之問題點,如 高強叙物,細她,猶,蝴目购柄= 突破之目標及方向; 4嶺労力研發 有鑑於此, 對上述之目標, 【發明内容】 發明人本於多年從事相關產品之製造開發與設計 詳加設計鱗慎評做,終得,具實祕之本發明。 本發明主要係提供―種自行柄輪結構,其主要錢服習 輪之耐用性,以延長鏈輪之使用壽命。 為達到前述之發明目的,本發明係包括一第一鍵輪組,該第—鍵輪组 係包括一鏈輪她+、―第-鏈輪及—第二鏈輪,該鏈輪切件係有一响 合部及-部,該唾合部係供自行車飛輪套設,該_·延伸成形於 °齒合部之外徑,該鎖固部係有複數個之第-岐部及第二固定部,該第一 鍵輪係有概個第-結合部鄕—蚊部設置,該第二鏈輪係有複㈣第 -結合部與第二固定部設置,且該第—鏈輪與第二鏈輪係各自設於鎖固部 之其中一側。 藉該第-鏈輪鮮二鏈輪分财同之固定部與鏈輪切件設置,可避 免同-固定部躲受兩鏈輪之施力連動,故能有效降低固定部與結合部之 201000360 耗才貝’達延長鍵輪組之使用壽命。 是故’本發明改善了自行車鏈輪結構及使用上的諸多缺失實是一種 相當具有實用性及進步性之創作,值得產業界來推廣並公諸於社會大眾。 【實施方式】 本發明係有關一種「鏈輪結構」,特別係指一種應用於自行車鏈輪之強 化輪結構者,並利用單軸、單側、單設置之模式,將鏈輪結合為鏈輪組, 以增加鏈輪組整體強度,請參閱第一圖至第四圖所示,該「鏈輪結構」係 包括一第一鏈輪組1 ’ 一第二鏈輪組2及一第三鏈輪組3。 該第一鏈輪組1係有一鏈輪支撐件11、一第一鏈輪丨2、一第二鏈輪13 及至複數個接合件124、134 ’該鏈輪支撐件11係包括一嚙合部m及一鎖 固部112 ’該鎖固部112係延伸成形於嚙合部m之外徑,該唾合部U1係 呈一圓環態樣,且該嚙合部111内徑係形成至少一個嚙合齒113,該嚙合部 111係供自行車飛輪套設,並透過嚙合齒113與之固定;該鎖固部112係設 有複數個第一固定部114及第二固定部115,該第一固定部114及第二固定 °卩115係呈穿孔態樣,該第一固定部H4係呈較小環徑對應唾合部Η〗環 繞成形,該第二固定部115係呈較大環徑對應嚙合部U1環繞成形。 該第一鏈輪12及第二鏈輪13於内徑係各延伸有複數個延伸段121、 131,且第一鏈輪12之延伸段121係成形有第一結合部122,第二鏈輪a 之延伸段131係成形有第二結合部132,且第一鏈輪12之延伸段121間係 形成有讓槽123,第二鏈輪13之延伸段131間係形成有讓槽133,該讓槽 123 ' 133係供第一鏈輪12及第二鏈輪13節省材料之設計,使第一鏈輪組 1整體達到輕量化之目的,該第一結合部122及第二結合部132係呈穿孔態 樣’ s亥第一鏈輪12及第二鏈輪13係各自設於鎖固部112之其中一侧,且 7 201000360固' and the bicycle flywheel; through the above-mentioned two known 201000360==ΓΓΓ关-axis, the two sprocket wheels are fixed on both sides of the sprocket cutting element, however, the single-axis and double sprocket The double gorge has a large burden on the locking part Κ 2 phase. When the bicycle performs the shifting action, the single sleeve core bearing surface gears are alternately linked, and the shifting moment is generated by the powerful force. The other two phases are alternately linked by double sprocket wheels, which is prone to structural fatigue. * Axis long 疋 ,, for the above-mentioned problems with the bicycle sprocket structure, such as high-strength narration, fine her, still, butterfly purchase handle = breakthrough goal and direction; The above-mentioned object, [Summary of the Invention] The inventor has been engaged in the manufacture and design of related products for many years and has carefully designed and designed the scales to achieve the final invention. The invention mainly provides a self-propelled shank structure, which mainly serves the durability of the wheel to extend the service life of the sprocket. In order to achieve the foregoing object, the present invention includes a first key wheel set including a sprocket she +, a - sprocket and a second sprocket, the sprocket cutting system There is a ringing portion and a portion for the bicycle flywheel to be sleeved, the extension is formed on the outer diameter of the toothed portion, and the locking portion is provided with a plurality of first and second portions and a second fixing portion The first key wheel has a general first-joining portion 鄕-mosquito setting, the second sprocket has a complex (four) first-joint portion and a second fixed portion, and the first-sprocket and the second chain The wheel trains are each disposed on one side of the lock. By means of the first sprocket fresh sprocket wheel and the fixed part and the sprocket cut piece arrangement, the same-fixed part can avoid the linkage of the two sprocket wheels, so that the fixed part and the joint part can be effectively reduced 201000360 The consumption of the shell is 'to extend the service life of the key wheel set. Therefore, the invention has improved the structure and use of the bicycle sprocket, and it is a practical and progressive creation, which is worthy of promotion by the industry and publicity to the public. [Embodiment] The present invention relates to a "sprocket structure", particularly to a reinforcing wheel structure applied to a bicycle sprocket, and uses a single-axis, single-sided, single-set mode to combine the sprocket into a sprocket. Group, to increase the overall strength of the sprocket set, as shown in the first to fourth figures, the "sprocket structure" includes a first sprocket set 1 'a second sprocket set 2 and a third chain Wheel set 3. The first sprocket set 1 is provided with a sprocket support member 11, a first sprocket 2, a second sprocket 13 and a plurality of engaging members 124, 134. The sprocket support 11 includes an engaging portion m. And the locking portion 112 is extended to the outer diameter of the engaging portion m, the salving portion U1 is in an annular shape, and the inner diameter of the engaging portion 111 forms at least one meshing tooth 113 The engaging portion 111 is provided for the bicycle flywheel and is fixed to the bicycle flywheel 113. The locking portion 112 is provided with a plurality of first fixing portions 114 and a second fixing portion 115, and the first fixing portion 114 and The second fixing portion 115 is in a perforated state, and the first fixing portion H4 has a smaller ring diameter corresponding to the salivating portion, and the second fixing portion 115 has a larger ring diameter corresponding to the meshing portion U1. Forming. The first sprocket 12 and the second sprocket 13 respectively extend a plurality of extensions 121 and 131 in the inner diameter, and the extension 121 of the first sprocket 12 is formed with a first joint 122 and a second sprocket. The extension portion 131 of the a is formed with the second joint portion 132, and the extending portion 121 of the first sprocket 12 is formed with a groove 123, and the extending portion 131 of the second sprocket 13 is formed with a groove 133. The groove 123 ′ 133 is designed to save materials for the first sprocket 12 and the second sprocket 13 to reduce the weight of the first sprocket set 1 as a whole, and the first joint portion 122 and the second joint portion 132 are The first sprocket 12 and the second sprocket 13 are respectively disposed on one side of the locking portion 112, and 7 201000360

弟一結合部係與繁一 RH A 合部訓账㈣Μ對應並麵合件124 ,第二結 U5對應並透過接合件134固設。 該第一鍵輪組2 -嚙合部22,2卜城^嶋组2糊徑係設有 行車該^悲部22係與自行車飛輪套設,供第二鏈輪組2固定於自 俜1自麵3係設有複數鏈輪31,且該第三鏈輪組3於内徑 部32係與自行車飛輪套設,供第三鏈輪組3固 疋於自订車飛輪,该第三 凸緣33係料二鏈_ ==置㈣㈣32 —娜娜卜⑽抑,該 請參閱紅_示’本㈣與自行車設置實簡樣料_鍵輪組! 、第一鏈輪組2及第三鏈輪組 .^11Π 職序套人自仃車雜,且透過三鏈輪組 〇〇 、22、32與自行出車飛輪固定及完成本發明之設置。 ^12 &第輪13分採不同之固定部與鏈輪支撲件 部隸人^ ^部棘受兩鏈輪之施力連動,故能有效降低固定 …5 αΡ之耗損,達延長鏈輪組之使用壽命。 斤述者僅為用以解釋本發明之較佳實施例,並非企 明做任何形式上之限制,是以’及右乂相门& 野本發 _ a料在_讀嶋神T賴有關本發明 何修飾或變更者’為其他可據以實施之態樣且具有相同效果者,皆仍 應包括在本發明意圖保護之範疇内。 々紅職’本發敗「鏈輪結構」,麟構設狀制實祕上,確實 符合貫祕,且所揭露之結構發明,亦是具有前所未有之觸構造,所以 其具有「新穎性」應無疑慮,又本發明可較之制結構更具功效之增進, 因此亦具有「進步性」’其完全符合我國專利法有關發明專射請之曰規定, 故’爰依法向鈞局提出發明專利申請,態請肖局能早日賜予本案專利 8 201000360 權,至感德便。 【圖式簡單說明】 第一圖係本發明鏈輪結構之第一鏈輪組立體分解示意圖。 第二圖係本發明鏈輪結構之第一鏈輪組外觀立體示意圖。 第三圖係本發明鏈輪結構之第一鏈輪組剖面示意圖。 第四圖係本發明鏈輪結構之立體分解示意圖。 第五圖係本發明鏈輪結構之剖面示意圖。 【主要元件符號說明】 1第一鏈輪組 11鏈輪支撐件 111嚙合部 112鎖固部 113哺合齒 114第一固定部 115第二固定部 12第一鏈輪 121延伸段 122第一結合部 123讓槽 124接合件 13第二鏈輪 131延伸段 132第二結合部 133讓槽 134接合件 2第二鏈輪組 21鏈輪 22嚙合部 3第三鏈輪組 31鏈輪 32响合部 33凸緣The brother-integrated department and the conventional RH-A joint account (4) Μ correspond to the face-to-face fitting 124, and the second knot U5 corresponds to and is fixed by the joint member 134. The first key wheel set 2 - the meshing portion 22, the 2 bucking group 2, the paste path is provided with the driving, the sorrow 22 and the bicycle flywheel, and the second sprocket set 2 is fixed to the self 俜 1 The face 3 is provided with a plurality of sprocket wheels 31, and the third sprocket set 3 is sleeved with the bicycle flywheel at the inner diameter portion 32 for the third sprocket set 3 to be fixed to the custom vehicle flywheel, the third flange 33 series material two chain _ == set (four) (four) 32 - Nanabu (10), please refer to the red _ show 'this (four) and bicycle set real sample _ key wheel set! The first sprocket set 2 and the third sprocket set . . . 11 Π 职 套 职 , , , , , , , , , , , , , , , , , 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 ^12 & The first round of 13 points of different fixed parts and sprocket parts of the sprocket part of the ^ ^ part of the spine by the force of the two sprocket linkage, it can effectively reduce the fixed ... 5 α Ρ loss, up to extend the sprocket The service life of the group. The exemplified is only a preferred embodiment for explaining the present invention, and it is not intended to be a limitation of any form, and is a 'right-handed door & wilderness hair _ a material in _ reading 嶋神T La related It is intended that the present invention be modified or altered as being otherwise capable of being carried out and the same effect. The smashing of the "sprocket structure" of the smashing job, the sturdy structure of the stalk structure, is indeed consistent with the secret, and the disclosed structural invention is also an unprecedented touch structure, so it has "novelty" should Undoubtedly, the invention can be more effective than the structure of the structure, and therefore has "progressiveness", which fully complies with the regulations of the invention patents related to the invention in the patent law, so that the invention patents are submitted to the bureau in accordance with the law. Application, state of the Board of Directors can give the patent 8 201000360 right as soon as possible, to the sense of virtue. BRIEF DESCRIPTION OF THE DRAWINGS The first figure is a perspective exploded view of a first sprocket set of the sprocket structure of the present invention. The second figure is a perspective view showing the appearance of the first sprocket set of the sprocket structure of the present invention. The third figure is a schematic cross-sectional view of the first sprocket set of the sprocket structure of the present invention. The fourth figure is a perspective exploded view of the sprocket structure of the present invention. The fifth figure is a schematic cross-sectional view of the sprocket structure of the present invention. [Description of main component symbols] 1 first sprocket set 11 sprocket support 111 meshing portion 112 locking portion 113 feeding teeth 114 first fixing portion 115 second fixing portion 12 first sprocket 121 extending section 122 first combination Port 123 allows slot 124 engagement member 13 second sprocket 131 extension section 132 second joint portion 133 allows slot 134 engagement member 2 second sprocket set 21 sprocket 22 engagement portion 3 third sprocket set 31 sprocket 32 Part 33 flange

Claims (1)

201000360 十、申請專利範圍: 1種鏈輪結構,其係包括—第—鏈輪組,該第—鏈輪組係有一鍵 輪支撐件、—第-鏈輪及-第二鏈輪,其中; 猶輪支擇件係有一鎖固部,該鎖固部係有複數個第一固定部及第二 固定部’該第—鏈輪係有複數個第一結合部,該第二鏈輪係有複數個第二 結合部’該第-結合部係與第—固定部設置,該第二結合部係與第二 部設置。 ' 2 .根據t請專利範圍第i項所述之鏈輪結構,該第—鏈輪與第二鍵 輪係各自設於鎖固部之其十一侧。 3根據中睛專利範圍第丄項所述之鏈輪結構該第—鏈輪組係有複 數個接β件,該第_結合部與第—峡部,及第二結合部與第二固定部, 係透過接合件固定。 4 ’根據申請專利範圍第2項所述之鏈輪結構,該第一鏈輪組係有複 數個接合件,該第—結合部與第—固定部,及第二結合部與第二固定部, 係透過接合件固定。 根據' ^月專利範圍第i項至第4項中任一項所述之鏈輪結構,該 鏈輪支撐件財,部,合勒彳_至少—㈣合齒,且鎖固部 係成形於喊合部之外徑。 6 .根射請專利範圍第i項至第4項中任—項所述之鏈輪結構,第 -鏈輪及第屬物姆自爾域_糧,料—結合部係 成形於第—嫩物^她她f找伸段,第- 201000360 鏈輪之延伸段間係形成有讓槽’第二鏈輪之延伸段間係形成有讓枰 7.根據申請專利範圍第1項至第4項中任-項所述之鏈輪_ 鏈輪結構魏括-第二鏈輪組及—第三鏈餘,娜二鍵輪缺第三频 係各有至>-個_ ’第二難組及第三鏈輪組於内徑係各有一唾合 部,該第三鏈齡有-凸緣鱗二鍵輪職設置。201000360 X. Patent application scope: 1 sprocket structure, which includes a - sprocket set, the first sprocket set has a key wheel support, a - sprocket and a second sprocket, wherein; The retaining member has a locking portion, and the locking portion has a plurality of first fixing portions and a second fixing portion. The first sprocket has a plurality of first joint portions, and the second sprocket has The plurality of second joint portions 'the first joint portion are disposed with the first fixing portion, and the second joint portion is disposed with the second portion. According to the sprocket structure described in the item i of the patent scope, the first sprocket and the second key train are respectively disposed on the eleven sides of the lock portion. The sprocket structure according to the third aspect of the invention is characterized in that the first sprocket set has a plurality of connecting β pieces, the first _ joint portion and the first isthmus portion, and the second joint portion and the second fixed portion, It is fixed by a joint. 4 ′′ according to the sprocket structure of claim 2, the first sprocket set has a plurality of joint members, the first joint portion and the first fixing portion, and the second joint portion and the second fixing portion , is fixed by the joint. The sprocket structure according to any one of the items of the present invention, wherein the sprocket support member, the sprocket support member, the at least one-fourth joint tooth, and the lock portion is formed Shout the outer diameter of the joint. 6. The sprocket structure described in any of the items in items i to 4 of the patent scope, the first sprocket and the genus of the genus _ _ _ grain, material - joints formed in the first - tender物^She she f find the extension, the first - 201000360 sprocket extension between the extension of the groove to form the second sprocket extension between the formation of the 枰7. According to the scope of patent application items 1 to 4 The sprocket _ sprocket structure Wei Kui - the second sprocket set and the third chain y y y y y y y y y y y y y y y y And the third sprocket set has a salivation portion in each of the inner diameter systems, and the third chain age has a flanged scale two-button rotation setting.
TW97123730A 2008-06-25 2008-06-25 Sprocket structure TW201000360A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW97123730A TW201000360A (en) 2008-06-25 2008-06-25 Sprocket structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW97123730A TW201000360A (en) 2008-06-25 2008-06-25 Sprocket structure

Publications (2)

Publication Number Publication Date
TW201000360A true TW201000360A (en) 2010-01-01
TWI338655B TWI338655B (en) 2011-03-11

Family

ID=44824494

Family Applications (1)

Application Number Title Priority Date Filing Date
TW97123730A TW201000360A (en) 2008-06-25 2008-06-25 Sprocket structure

Country Status (1)

Country Link
TW (1) TW201000360A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI410353B (en) * 2010-11-24 2013-10-01 Tien Hsin Industries Co Ltd Bicycle Sprockets (2)
TWI657965B (en) * 2011-07-13 2019-05-01 矢倫德國股份有限公司 Multi-sprocket-equipped transmission base body device for supporting bicycle transmission
TWI659895B (en) * 2015-05-25 2019-05-21 日商島野股份有限公司 Bicycle rear sprocket assembly

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9182027B2 (en) 2011-12-06 2015-11-10 Sram, Llc Chainring
DE102013009492B4 (en) 2013-06-05 2023-10-19 Sram Deutschland Gmbh Chain ring
US9581229B2 (en) 2014-02-10 2017-02-28 Wolf Tooth Components, LLC Sprocket
US9394986B2 (en) 2014-02-10 2016-07-19 Wolf Tooth Components, LLC Sprocket
US9625027B2 (en) 2014-04-08 2017-04-18 Wolf Tooth Components, LLC Sprocket
US9581231B2 (en) 2014-04-08 2017-02-28 Wolf Tooth Components, LLC Sprocket
US10703441B2 (en) 2015-07-03 2020-07-07 Sram Deutschland Gmbh Drive arrangement for a bicycle
DE102015008662A1 (en) 2015-07-03 2017-01-05 Sram Deutschland Gmbh Single sprocket for a bicycle forward crank assembly
US9926038B2 (en) * 2015-07-28 2018-03-27 Shimano Inc. Bicycle sprocket, bicycle rear sprocket, and bicycle multiple sprocket assembly

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI410353B (en) * 2010-11-24 2013-10-01 Tien Hsin Industries Co Ltd Bicycle Sprockets (2)
TWI657965B (en) * 2011-07-13 2019-05-01 矢倫德國股份有限公司 Multi-sprocket-equipped transmission base body device for supporting bicycle transmission
TWI701186B (en) * 2011-07-13 2020-08-11 德商矢倫德國股份有限公司 Transmission seat device with small sprocket and multi-sprocket configuration for bicycle transmission
TWI659895B (en) * 2015-05-25 2019-05-21 日商島野股份有限公司 Bicycle rear sprocket assembly

Also Published As

Publication number Publication date
TWI338655B (en) 2011-03-11

Similar Documents

Publication Publication Date Title
TW201000360A (en) Sprocket structure
TWD106912S1 (en) Wristwatch
TWM312996U (en) Seat turning and controlling mechanism applying to exercise equipment
TW201223711A (en) Pivotal shaft positioning structure of tool
CN109249753A (en) Ratchet ring structure combined with hub assembly
TWI400067B (en) Massaging device with an auxiliary positioning structure
TW200846238A (en) Multi-mode tandem bicycle
TWM307532U (en) Vehicle's aluminum wheels with high strength
CN211568213U (en) Front and rear reversing device for lumbar vertebra twisting scooter
TWM392140U (en) Structural improvement for wedged type pedal
CN101618749A (en) Chain wheel structure
TWI281448B (en) Non-metal composite material made teeth structure on a bicycle component and method for making the same
TWM363437U (en) Dual-propulsion bike
TWM258924U (en) Crank set with ratchet wheel
TWM297339U (en) Bicycle's chainwheels location seat with strengthening structure
CN101559813B (en) Folding bicycle handlebar
TW201332836A (en) Pedaling structure of advancing bicycle capable of forward and backward pedaling
TWM278431U (en) Exercise equipment structure
TWM399097U (en) Improved crank with torque detection
Balabolkin et al. Vliyanie bioflavanoidov na intensivnost'svobodnoradikal'nogo okisleniya i aktivnost'Na*-N*-obmennika u bol'nykh SD tipa 2
KR101900290B1 (en) Bike Power Plant Device
CN113002685A (en) Front and rear reversing device for lumbar vertebra twisting scooter
TWM281878U (en) Structure of folding bike
TWD118896S1 (en) Double cross hinge
TWM349369U (en) Handlebar grip with a combinational ring set

Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees