TWM538014U - Folding bike - Google Patents

Folding bike Download PDF

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Publication number
TWM538014U
TWM538014U TW105217827U TW105217827U TWM538014U TW M538014 U TWM538014 U TW M538014U TW 105217827 U TW105217827 U TW 105217827U TW 105217827 U TW105217827 U TW 105217827U TW M538014 U TWM538014 U TW M538014U
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TW
Taiwan
Prior art keywords
tube
seat
wheel
jacket
frame
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TW105217827U
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Chinese (zh)
Inventor
jia-rong Zheng
Original Assignee
jia-rong Zheng
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Application filed by jia-rong Zheng filed Critical jia-rong Zheng
Priority to TW105217827U priority Critical patent/TWM538014U/en
Publication of TWM538014U publication Critical patent/TWM538014U/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62KCYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K15/00Collapsible or foldable cycles
    • B62K15/006Collapsible or foldable cycles the frame being foldable
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62KCYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K15/00Collapsible or foldable cycles
    • B62K2015/005Collapsible or foldable cycles having additional wheels for use when folded or collapsed

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Motorcycle And Bicycle Frame (AREA)

Description

摺疊自行車foldable bicycle

本創作係關於一種摺疊自行車,尤指一種摺疊收合後適於推行移動的摺疊自行車結構。The present invention relates to a folding bicycle, and more particularly to a folding bicycle structure suitable for carrying out movement after folding and folding.

已知摺疊自行車結構,係於車架的主架管處設置一轉折器,以及在前叉與把手管之間設置一轉折器,而在自行車騎乘完畢之後,可藉由鬆開該二個轉折器,而將把手管折合靠近前輪,且將主架管對折使前輪與後輪並列,再以一黏扣帶繞設該前、後輪予以定位,藉此縮小車架體積,以方便收合置放,以減少空間佔用。而由於摺疊自行車收合,僅能縮小車架體積,其整車重量在摺疊前後維持不變,因而用手提起移動車架即顯得相當費力。為此,即有業者思及在座椅之座管底端加裝一輪子,而當車架展開且座管位於正常高度時,該座管底端之輪子離開地面,僅留自行車之前輪、後輪在前後方向上抵靠地面行進,而當騎乘完畢之後要進行車架收合時,可將座管向下移動調整,使座管底端之輪子貼靠地面,使摺疊後的車架具有前輪、後輪及座管底端之輪子等三個輪子接觸地面,而讓使用者可推行移動該摺疊自行車,因而甫一推出即廣受使用者好評。The folding bicycle structure is known to provide a turning device at the main frame tube of the frame, and a folding device between the front fork and the handle tube, and after the bicycle is finished riding, the two can be loosened. The turning device folds the handle tube close to the front wheel, and folds the main frame tube to make the front wheel and the rear wheel juxtaposed, and then the front and rear wheels are positioned by a fastening tape, thereby reducing the frame volume for convenient collection. Place it together to reduce space usage. However, due to the folding of the folding bicycle, only the frame size can be reduced, and the weight of the whole vehicle remains unchanged before and after folding, so that lifting the frame by hand is quite laborious. To this end, the manufacturer thinks that a wheel is installed at the bottom end of the seat tube of the seat, and when the frame is unfolded and the seat tube is at a normal height, the wheel at the bottom end of the seat tube leaves the ground, leaving only the front wheel and the rear of the bicycle. The wheel travels against the ground in the front-rear direction, and when the frame is folded after the ride is completed, the seat tube can be moved downward to adjust the wheel at the bottom end of the seat tube to the ground, so that the folded frame Three wheels, such as the wheels of the front wheel, the rear wheel and the bottom end of the seat tube, contact the ground, and the user can carry out the movement of the folding bicycle, which is widely praised by the user upon launch.

惟,習知摺疊自行車雖在該座管底端加裝輪子,使摺疊自行車收合後能用手推行移動,然而,該輪座係藉由一束帶束緊於該座管底端周面,因而該輪座及輪子所形成的輪廓範圍大於該座管周面沿縱向投影之輪廓範圍,造成該輪座及輪子無法隨著該座管收入中管,使座管向上調整高度的範圍受到限制,例如,當使用者要向上調整座椅高度時,座管只能向上移動到輪子被中管底端擋住為止而無法再向上移動。因此,習用摺疊自行車無法滿足更多使用者對於座椅高度調整需求,而如果一定要向上調整座椅高度,則必需先拆下座管底端的輪子,使輪座及輪子不會卡掣於中管底端,才能進一步上升座管,因而使用者在騎乘自行車時,要先拆下座管底端的輪座及輪子,而在騎乘完畢想要收合車架時,再將座管底端的輪座及輪子裝上,如此才能讓摺疊自行車具有前輪、後輪及座管底端之輪子等三個輪子著地,才能推行移動該摺疊自行車,而造成使用者相當大的不便。又,現今摺疊自行車的另一問題在於,摺疊自行車收合後,因座管必須向下移動,才能使座管底端的輪子接觸地面,造成摺疊自行車收合後之高度降低,因而一些身材較高的使用者必須彎著腰且手扶座椅推行車架,造成使用者難以正常走動施力之身體負擔,因而,現今摺疊自行車之座管底端加裝輪子,雖形成易於推行車架移動結構,惟其仍有如上所述缺點,有待進一步加以改善。However, although the conventional folding bicycle is equipped with wheels at the bottom end of the seat tube, the folding bicycle can be moved by hand after being folded, however, the wheel seat is fastened to the circumference of the bottom end of the seat tube by a belt. Therefore, the contour range formed by the wheel base and the wheel is larger than the contour range of the circumferential surface of the seat tube, so that the wheel seat and the wheel cannot be collected into the middle tube along with the seat tube, so that the height of the seat tube is adjusted upward. Limitation, for example, when the user wants to adjust the seat height upwards, the seat tube can only move up until the wheel is blocked by the bottom end of the middle tube and cannot move up again. Therefore, the conventional folding bicycle can not meet the needs of more users for adjusting the height of the seat. If the height of the seat must be adjusted upwards, the wheel at the bottom of the seat tube must be removed first, so that the wheel base and the wheel are not stuck in the middle. At the bottom end of the tube, the seat tube can be further raised. Therefore, when riding the bicycle, the user must first remove the wheel base and the wheel at the bottom end of the seat tube, and when the bicycle is ready to be folded, the bottom of the seat tube is used. The wheel base and the wheel are mounted so that the folding bicycle can have three wheels on the front wheel, the rear wheel and the wheel at the bottom end of the seat tube to move the folding bicycle, which causes considerable inconvenience to the user. Moreover, another problem with today's folding bicycles is that after the folding bicycle is folded, the seat tube must be moved downwards to make the wheels at the bottom end of the seat tube contact the ground, resulting in a lower height of the folding bicycle after folding, and thus some of the taller bodies are taller. The user must bend over and push the seat to push the frame, which makes it difficult for the user to walk the physical burden of the force. Therefore, the bottom end of the folding bicycle seat tube is equipped with wheels, which makes it easy to carry out the frame movement structure. However, it still has the shortcomings mentioned above and needs to be further improved.

本創作提供一種摺疊自行車,包括一車架,該車架包括沿一前後方向延伸的一主架管,該主架管二端具有沿垂直於該前後方向的一縱向延伸的一頭管及一中管,一前叉樞設於該頭管,該前叉頂端設置一把手管,該前叉與該把手管之間設置一第一轉折器,該前叉樞設一前輪,該前叉底端設置一第一磁吸件,該主架管12設置一第二轉折器,該中管頂緣設置一束結件,該中管外表面具有朝前後方向之後方延伸的一後叉,該後叉樞設一後輪,該後叉底端設置一第二磁吸件,當該前輪及該後輪沿縱向立於一水平地面時,該第一磁吸件及該第二磁吸件於該縱向上的高度位置為實質相等,當該第一轉折器緊固時,該把手管與前叉固結一起,當該第一轉折器鬆開時,該把手管可朝向地面樞轉,當該第二轉折器緊固時,該主架管維持於前後方向,當該第二轉折器鬆開時,該主架管轉折收合使該前輪並列於該後輪側,且該第一磁吸件及該第二磁吸件磁吸定位,及包括一座管,該座管穿設於該車架的中管中且受到該束結件束緊定位,該座管包括沿縱向隔開的一上端及一下端,一貫穿孔貫穿該上端及該下端而在該座管內部形成一孔壁面,當束結件鬆開時,即解除對於座管束結,因而該座管可在該中管中沿縱向上下移動,及包括一中輪組,該中輪組包括一固定件及與該固定件結合的一輪座及樞設於該輪座下側的一輪子,該固定件固設於該座管之下端的孔壁面,該輪子向下凸出該座管的下端,該輪座與輪子的輪廓範圍不超出該座管周面沿縱向投影所涵蓋的範圍,當束結件鬆開且對於該座管向上移動調整高度時,該輪座及輪子可隨該座管的下端進一步收入該中管中,及包括一座椅,該座椅包括一椅架,該椅架設置於該座管的上端, 當束結件鬆緊而調整該座管向下移動至中輪組的輪子抵於地面定位時,鬆開第一轉折器使該把手管朝向地面樞轉,及鬆開第二轉折器折合該主架管,因而該前輪靠向該後輪側且該第一磁吸件及第二磁吸件磁吸定位,使該前輪及該後輪呈相同朝向的並列一起,因而該車架收合,即具有三個輪子著地而適於穩定的在地面上推行移動。The present invention provides a folding bicycle, comprising a frame, the frame comprising a main frame tube extending in a front-rear direction, the main end of the main tube having a longitudinal tube extending in a direction perpendicular to the front-rear direction and a middle tube a front fork is pivotally disposed on the head tube, a handle tube is disposed at a top end of the front fork, a first deflector is disposed between the front fork and the handle tube, and a front wheel is disposed on the front fork, and the front end of the front fork is disposed a first magnetic member, the main frame tube 12 is provided with a second deflector, the top edge of the middle tube is provided with a bundle member, and the outer surface of the middle tube has a rear fork extending backward in the front-rear direction, the rear fork a rear wheel is disposed, a second magnetic member is disposed at a bottom end of the rear fork, and the first magnetic member and the second magnetic member are disposed when the front wheel and the rear wheel are longitudinally disposed on a horizontal floor. The height position in the longitudinal direction is substantially equal. When the first folding device is fastened, the handle tube is fixed together with the front fork, and when the first folding device is loosened, the handle tube can be pivoted toward the ground when the When the second folding device is fastened, the main frame tube is maintained in the front-rear direction, when the second folding device is loose When the main frame tube is folded and folded, the front wheel is juxtaposed on the rear wheel side, and the first magnetic member and the second magnetic member are magnetically positioned, and includes a tube, the seat tube is disposed in the vehicle. The middle tube of the frame is tightly positioned by the bundle member, and the seat tube includes an upper end and a lower end spaced apart in the longitudinal direction, and the perforation is continuously penetrated through the upper end and the lower end to form a hole wall surface inside the seat tube. When the beam is loosened, the seat tube bundle is released, so that the seat tube can move up and down in the longitudinal direction of the middle tube, and includes a middle wheel set, the middle wheel set includes a fixing member and is combined with the fixing member a wheel seat and a wheel pivoted on a lower side of the wheel seat, the fixing member is fixed on a hole wall surface of the lower end of the seat tube, the wheel protrudes downwardly from the lower end of the seat tube, the contour of the wheel seat and the wheel The range does not exceed the range covered by the longitudinal projection of the seat tube surface. When the beam is loosened and the height is adjusted upward for the seat tube, the wheel seat and the wheel can further receive the middle tube with the lower end of the seat tube. And including a seat, the seat includes a seat frame, the seat frame is disposed at the The upper end of the tube, when the beam is elastic and adjusts the seat tube to move downward to the wheel of the middle wheel set to the ground, the first deflector is released to pivot the handle tube toward the ground, and the second turn is released The main frame tube is folded, so that the front wheel is opposite to the rear wheel side and the first magnetic member and the second magnetic member are magnetically positioned, so that the front wheel and the rear wheel are juxtaposed in the same direction, so that the vehicle The frame is folded, that is, it has three wheels on the ground and is suitable for stable movement on the ground.

本創作特點可藉由第一磁吸件及第二磁吸件磁吸定位,使車架收合時之前輪及後輪能穩定的朝向相同方向並列一起。且藉由座管下端之中輪組的設置,使車架收合時降下座管,而讓中輪組的輪子與前輪及後輪形成三個輪子支撐於地面,藉此讓使用者方便穩定的推行車架到處移動。以及,該輪座及該輪子的輪廓範圍不超出該座管周面沿縱向投影所涵蓋的範圍,因而在調整座管高度時,可進一步將輪座及輪子收入中管,而增加座管調整高度範圍,且讓使用者在騎乘自行車前後都不必再拆裝該中輪組,而能達到方便使用者操作收合摺疊自行車之功效。又,座椅與座管之間設置一翻轉裝置,且於座椅的椅架設置向後延伸的延伸架,因而座椅可向上掀轉,而讓延伸架轉為朝向縱向,藉此增加手部握持推行車架之高度,而更方便使用者用手握持延伸架的推行收合之車架。The creation feature can be magnetically positioned by the first magnetic member and the second magnetic member, so that the front wheel and the rear wheel can be stably aligned in the same direction when the frame is folded. And by the arrangement of the wheel set in the lower end of the seat tube, the seat tube is lowered when the frame is folded, and the wheel of the middle wheel set and the front wheel and the rear wheel form three wheels to support the ground, thereby making the user convenient and stable. The implementation of the frame moves around. Moreover, the contour of the wheel seat and the wheel does not exceed the range covered by the longitudinal projection of the circumferential surface of the seat tube, so that when the seat tube height is adjusted, the wheel base and the wheel can be further collected into the middle tube, and the seat tube adjustment is added. The height range and the user do not need to disassemble the middle wheel set before and after riding the bicycle, so that the user can conveniently operate the folding bicycle. Moreover, a turning device is arranged between the seat and the seat tube, and the frame extending from the seat frame is provided with a rearward extending extending frame, so that the seat can be turned upwards, and the extending frame is turned toward the longitudinal direction, thereby increasing the hand. Holding the height of the frame, it is more convenient for the user to hold the frame of the extension frame by hand.

在配合圖式說明本創作說明性實施例之詳細說明下,將可更清楚了解本創作。The creation of the present invention will be more clearly understood by the detailed description of the illustrative embodiments of the present invention.

如第1圖、第2圖及第3圖所示,本創作摺疊自行車10包括一車架11,該車架11包括沿一前後方向延伸的一主架管12,該主架管12二端分別具有沿垂直於該前後方向的一縱向延伸的一頭管14及一中管16。該車架11具有一前叉20樞設於該頭管14,該前叉20頂端設置一把手管18,該前叉20與該把手管18之間設置一第一轉折器15,該前叉20樞設一前輪24,該前叉20底端設置一第一磁吸件30。如第2圖所示,該第一磁吸件30包括一接桿32,該接桿32一端具有一固定座34,該固定座34中設置一磁鐵36,以及在前叉20底端具有一定位架28,該定位架28中具有一穿孔29,該接桿32穿設一彈簧38及穿設該定位架28之穿孔29後套設一墊片42,以及用一螺絲40螺設於該接桿32,而將該第一磁吸件30固設於該定位架28。As shown in FIG. 1 , FIG. 2 and FIG. 3 , the present folding bicycle 10 includes a frame 11 including a main frame tube 12 extending in a front-rear direction, and the main frame tube 12 has two ends. Each has a head tube 14 and a middle tube 16 extending longitudinally in a direction perpendicular to the front-rear direction. The frame 11 has a front fork 20 pivotally disposed on the head tube 14. A handle tube 18 is disposed at a top end of the front fork 20, and a first twister 15 is disposed between the front fork 20 and the handle tube 18. The front fork 20 is disposed. A front wheel 24 is pivoted, and a first magnetic member 30 is disposed at a bottom end of the front fork 20. As shown in FIG. 2, the first magnetic member 30 includes a post 32. The post 32 has a fixing seat 34 at one end, a magnet 36 is disposed in the fixing base 34, and a bottom end is provided at the bottom end of the front fork 20. a positioning frame 28 having a through hole 29 therein, the post 32 is disposed with a spring 38 and a through hole 29 of the positioning frame 28, and a gasket 42 is disposed thereon, and is screwed to the screw 40 The first magnetic member 30 is fixed to the positioning frame 28 by the post 32.

如第1圖、第2圖及第3圖所示,該主架管12設置一第二轉折器17,該中管16頂緣設置一束結件19,該中管16外表面具有一後叉22,該後叉22樞設一後輪26,該後叉22底端設置一第二磁吸件44,當該前輪24及該後輪26沿縱向立於一水平地面時,該第一磁吸件30及該第二磁吸件44於該縱向上的高度位置為實質相等。如第3圖所示,該第二磁吸件44包括一螺桿48,該螺桿48一端具有一磁盤46,以及該後叉22底端具有一固定孔137,該螺桿48上螺設一螺帽50及套設一墊片52,並以該螺桿48穿設該固定孔137及套設一墊片52再以一螺帽50螺合於該螺桿50,而將該第二磁吸件44固設於該後叉22底端。而當該前輪24與該後輪26立於地面時,該第一磁吸件30及該第二磁吸件44距離地面的高度為實質相等。當第一轉折器15緊固時,該把手管18與前叉20固結一起,因而可用手握持該把手管18操作前叉20而控制前輪24轉向,當第一轉折器15鬆開時,可令把手管18朝向地面樞轉。當第二轉折器17緊固時,主架管12維持於前後方向,而當鬆開第二轉折器17時,則可令主架管12轉折收合,而讓該前輪24轉向該後輪26側並列為相同朝向,以及,高度為實質相等的第一磁吸件30與第二磁吸件44吸附定位,即可確保該前輪24與該後輪26並列後能穩定固結的維持於相同朝向。As shown in FIG. 1 , FIG. 2 and FIG. 3 , the main frame tube 12 is provided with a second folding device 17 . The top edge of the middle tube 16 is provided with a bundle of knots 19 , and the outer surface of the middle tube 16 has a rear surface. a fork 22, the rear fork 22 is pivotally disposed with a rear wheel 26, and a rear end of the rear fork 22 is provided with a second magnetic member 44. When the front wheel 24 and the rear wheel 26 are longitudinally disposed on a horizontal floor, the first The height positions of the magnetic member 30 and the second magnetic member 44 in the longitudinal direction are substantially equal. As shown in FIG. 3, the second magnetic member 44 includes a screw 48 having a magnetic disk 46 at one end thereof, and a fixing hole 137 at the bottom end of the rear fork 22, and a nut is screwed on the screw 48. 50 and a gasket 52, and the screw 48 is inserted through the fixing hole 137 and a gasket 52 is screwed to the screw 50 by a nut 50, and the second magnetic member 44 is fixed. It is disposed at the bottom end of the rear fork 22. When the front wheel 24 and the rear wheel 26 stand on the ground, the heights of the first magnetic member 30 and the second magnetic member 44 from the ground are substantially equal. When the first deflector 15 is fastened, the handle tube 18 is fixed together with the front fork 20, so that the handle tube 18 can be held by hand to operate the front fork 20 to control the steering of the front wheel 24 when the first reverser 15 is released. The handle tube 18 can be pivoted towards the ground. When the second folding device 17 is fastened, the main frame tube 12 is maintained in the front-rear direction, and when the second folding device 17 is released, the main frame tube 12 can be folded and folded, and the front wheel 24 is turned to the rear wheel. The 26 sides are juxtaposed in the same orientation, and the first magnetic member 30 and the second magnetic member 44 having substantially the same height are adsorbed and positioned, thereby ensuring that the front wheel 24 and the rear wheel 26 can be stably consolidated after being juxtaposed. The same orientation.

如第1圖、第4圖及第5圖所示,本創作摺疊自行車10另包括一座管54,該座管54包括沿一縱向隔開的一上端55及一下端56,一貫穿孔57貫穿該上端55及該下端56而在該座管54內形成一孔壁面58,該座管54周面係沿該座管54的中心軸向環繞,該座管54的中心軸向與所述之縱向係呈平行關係。以及,在該座管54鄰近上端55處套束一調整套311,該調整套311鄰近該座管54的上端55,該座管54係以下端56由該中管16頂端向下穿出該中管16,且該座管54在適當高度時,即以該束結件19束緊定位,而讓該座管54的下端56與地面隔離一間距,而該調整套311位於該中管16上方。當束結件19鬆開時,即解除對於該座管54束結,因而該座管54可在該中管16內沿縱向上下移動調整高度。As shown in Figures 1, 4, and 5, the inventive folding bicycle 10 further includes a tube 54 including an upper end 55 and a lower end 56 spaced apart along a longitudinal direction through which the perforations 57 are continuous. The upper end 55 and the lower end 56 form a hole wall surface 58 in the seat tube 54. The circumferential surface of the seat tube 54 is axially surrounded along the center of the seat tube 54. The central axis of the seat tube 54 is perpendicular to the longitudinal direction. The system is in a parallel relationship. And an adjusting sleeve 311 is sleeved adjacent to the upper end 55 of the seat tube 54. The adjusting sleeve 311 is adjacent to the upper end 55 of the seat tube 54. The seat tube 54 is downwardly protruded from the top end of the middle tube 16 by the top end 56. The middle tube 16 is located at a suitable height, that is, the bundle member 19 is tightly positioned, and the lower end 56 of the seat tube 54 is spaced apart from the ground, and the adjustment sleeve 311 is located in the middle tube 16 Above. When the bundle member 19 is released, the bundle of the seat tube 54 is released, so that the seat tube 54 can be moved up and down in the longitudinal direction of the intermediate tube 16 to adjust the height.

如第1圖所示,本創作摺疊自行車10另包括一座椅111,該座椅111包括一椅架113,該椅架113設置於該座管54的上端55。該椅架113末端具有沿前後方向之後方設置一延伸架115,該延伸架115末端形成沿縱向延伸的一轉折部117。一翻轉裝置131安裝於該椅架113與該座管54的上端55之間,該翻轉裝置131包括一定位座133及一卡合座151,該座椅111的椅架113設置於該卡合座151,該定位座133安裝於該座管54的上端55。以及,該卡合座151位於該定位座133上方,且該卡合座151前端以一樞接桿135樞設於該定位座133前端。又,卡合座151具有一卡鉤撥桿153扣持該定位座133。當向上撥動卡鉤撥桿153使該卡鉤撥桿153脫離對於該定位座133的扣持狀態時,該卡合座151及座椅111可向上掀轉90度,因而延伸架115即轉為朝向縱向,而轉折部117即轉為朝向前後方向。As shown in FIG. 1, the present folding bicycle 10 further includes a seat 111. The seat 111 includes a seat frame 113 disposed at an upper end 55 of the seat tube 54. The end of the seat frame 113 has an extending frame 115 disposed behind the front-rear direction, and the end of the extending frame 115 forms a turning portion 117 extending in the longitudinal direction. An inverting device 131 is mounted between the chair frame 113 and the upper end 55 of the seat tube 54. The turning device 131 includes a positioning seat 133 and a latching seat 151. The chair frame 113 of the seat 111 is disposed on the latching device. The seat 151 is mounted on the upper end 55 of the seat tube 54. The front end of the engaging seat 151 is pivoted on the front end of the positioning seat 133 by a pivoting rod 135. Moreover, the engaging seat 151 has a hook lever 153 for holding the positioning seat 133. When the hook lever 153 is pulled upward to disengage the hook lever 153 from the positioning position of the positioning seat 133, the engaging seat 151 and the seat 111 can be rotated upward by 90 degrees, so that the extension frame 115 is rotated. To face the longitudinal direction, the turning portion 117 is turned toward the front-rear direction.

如第4圖、第5圖所示,該座管54的下端設置一中輪組60,該中輪組60包括一固定件61及與該固定件61結合的一軸承90及一輪座94,該輪座94具有一頂部96,該頂部96設置一固定孔96,該輪座94底端樞設一輪子98。該固定件61係由該座管54的下端56伸入該貫穿孔57中固結定位,並以一定位件92穿設該輪座94、軸承90及固定件61,而將該輪座94設置於該固定件61下側,因而該輪子98凸出該座管54的下端56,且該輪座94及該輪子98的輪廓範圍不超出該座管54周面沿縱向投影所涵蓋的範圍(如第5圖所示)。As shown in FIG. 4 and FIG. 5, the lower end of the seat tube 54 is provided with a middle wheel set 60. The middle wheel set 60 includes a fixing member 61 and a bearing 90 and a wheel seat 94 coupled with the fixing member 61. The wheel base 94 has a top portion 96. The top portion 96 defines a fixing hole 96. A wheel 98 is pivoted at the bottom end of the wheel base 94. The fixing member 61 is formed by the lower end 56 of the seat tube 54 extending into the through hole 57, and the wheel holder 94, the bearing 90 and the fixing member 61 are pierced by a positioning member 92, and the wheel holder 94 is provided. Provided on the lower side of the fixing member 61, the wheel 98 protrudes from the lower end 56 of the seat tube 54, and the contour of the wheel housing 94 and the wheel 98 does not exceed the range covered by the longitudinal projection of the circumferential surface of the seat tube 54. (as shown in Figure 5).

如第4圖、第5圖、第6圖及第7圖所示,該中輪組60的固定件61包括一第一夾套74、一第二夾套80及穿設該第一夾套74且螺合該第二夾套80的一螺桿86。該螺桿86表面形成外螺紋,該螺桿86內具有沿縱向延伸的一內螺孔88。該固定件61另包括複數擴張板62,如第4圖所示係為四片擴張板62,各擴張板62沿縱向延伸而形成弧形狀,各擴張板62具有隔開的一外側面66及一內凹面64,各擴張板62的外側面66具有一凹槽68,各擴張板62二側互為相鄰,並以一彈性環圈72束設該凹槽68,因而複數擴張板62束設成近似一圓筒形狀,而該複數擴張板62束設成的圓筒外徑小於該座管54的貫穿孔57內徑,以及各擴張板62二端具有沿縱向隔開的一第一斜面69及一第二斜面70,各第一斜面69及各第二斜面70係由鄰近外側面66端朝內凹面64傾斜延伸。該第一夾套74具有沿縱向延伸的一通孔76,該第一夾套74具有一錐部78,該錐部78貼靠各擴張板62之第一斜面69,該第二夾套80具有沿縱向延伸的一螺孔82,該第二夾套80具有一錐部84,該錐部84貼靠各擴張板62之第二斜面70,該第二夾套80的螺孔82沿縱向對齊該第一夾套74之通孔76。該複數擴張板62即受該第一夾套74及該第二夾套80夾持,以及該螺桿86沿縱向向上穿設該軸承90及穿入該第一夾套74之通孔76,且該螺桿86螺入該第二夾套80之螺孔82。該固定件61由座管54的下端56置入貫穿孔57。當螺桿86旋轉帶動第二夾套80朝第一夾套74位移時,該第一夾套74的錐部78滑動於第一斜面69而撐開各擴張板62一端,該第二夾套80的錐部84滑動於第二斜面70而撐開各擴張板62另一端,因而各擴張板62的外側面66抵壓於該座管54的孔壁面58,使固定件61固結定位於該座管54的下端56之貫穿孔57處(如第5圖及第6圖所示)。以及,該定位件92表面具有外螺紋,該定位件92沿縱向穿設該輪座94的固定孔96及螺入該螺桿86之內螺孔88,因而該輪座94結合在該固定件61下側,且該輪座94的頂部95抵靠該軸承90,因而該輪座94可於固定件61的中心軸下方旋轉,藉此而讓輪子98能在地面上360度轉動。且因該輪座94及該輪子98的輪廓範圍不超出該座管54周面沿縱向投影所涵蓋的範圍,因而當該座管54向上調整位移時,該輪座94及輪子98可隨著該座管54收入車架11的中管16中(如第7圖所示)。當束結件19鬆緊而調整該座管54向下移動至調整套311抵於中管16頂端時,位於該座管54的下端56之輪子98即接觸地面。As shown in FIG. 4, FIG. 5, FIG. 6 and FIG. 7, the fixing member 61 of the middle wheel set 60 includes a first jacket 74, a second jacket 80, and the first jacket. 74 and screwing a screw 86 of the second jacket 80. The surface of the screw 86 is externally threaded, and the screw 86 has an inner screw hole 88 extending in the longitudinal direction. The fixing member 61 further includes a plurality of expansion plates 62. As shown in FIG. 4, there are four expansion plates 62. Each of the expansion plates 62 extends in the longitudinal direction to form an arc shape, and each of the expansion plates 62 has a spaced outer surface 66. And an inner concave surface 64, the outer side surface 66 of each of the expansion plates 62 has a groove 68, and the two sides of each of the expansion plates 62 are adjacent to each other, and the groove 68 is bundled by an elastic ring 72, and thus the plurality of expansion plates 62 The bundle is formed in a substantially cylindrical shape, and the outer diameter of the plurality of expansion plates 62 is smaller than the inner diameter of the through hole 57 of the seat tube 54, and the two ends of each of the expansion plates 62 have a first space spaced apart in the longitudinal direction. The inclined surface 69 and the second inclined surface 70, each of the first inclined surface 69 and each of the second inclined surfaces 70 extend obliquely from the end of the outer side surface 66 toward the inner concave surface 64. The first jacket 74 has a through hole 76 extending in the longitudinal direction. The first jacket 74 has a tapered portion 78 which abuts against the first inclined surface 69 of each of the expansion plates 62. The second jacket 80 has a threaded hole 82 extending in the longitudinal direction, the second jacket 80 has a tapered portion 84 that abuts against the second inclined surface 70 of each of the expansion plates 62, and the screw holes 82 of the second jacket 80 are aligned in the longitudinal direction. The through hole 76 of the first jacket 74. The plurality of expansion plates 62 are sandwiched by the first jacket 74 and the second jacket 80, and the screw 86 penetrates the bearing 90 and the through hole 76 of the first jacket 74 in the longitudinal direction. The screw 86 is screwed into the screw hole 82 of the second jacket 80. The fixing member 61 is placed in the through hole 57 by the lower end 56 of the seat tube 54. When the screw 86 rotates to drive the second jacket 80 to be displaced toward the first jacket 74, the tapered portion 78 of the first jacket 74 slides on the first slope 69 to open one end of each of the expansion plates 62. The second jacket 80 The tapered portion 84 slides on the second inclined surface 70 to open the other end of each of the expansion plates 62, so that the outer side surface 66 of each of the expansion plates 62 is pressed against the hole wall surface 58 of the seat tube 54, so that the fixing member 61 is fixed and positioned. The through hole 57 of the lower end 56 of the seat tube 54 is as shown in Figs. 5 and 6. The positioning member 92 has an external thread on the surface of the positioning member 92. The positioning member 92 penetrates the fixing hole 96 of the wheel housing 94 and the screw hole 88 of the screw 86. The wheel housing 94 is coupled to the fixing member 61. The lower side, and the top portion 95 of the wheel mount 94 abuts against the bearing 90, so that the wheel mount 94 can be rotated below the central axis of the fixture 61, thereby allowing the wheel 98 to rotate 360 degrees on the ground. And because the contour range of the wheel seat 94 and the wheel 98 does not exceed the range covered by the longitudinal projection of the circumferential surface of the seat tube 54, when the seat tube 54 is adjusted upwardly, the wheel seat 94 and the wheel 98 can follow The seat tube 54 is received in the middle tube 16 of the frame 11 (as shown in Fig. 7). When the beam member 19 is tightened and the seat tube 54 is adjusted to move downward until the adjustment sleeve 311 abuts against the top end of the middle tube 16, the wheel 98 at the lower end 56 of the seat tube 54 contacts the ground.

配合參看第8圖、第9圖及第10圖所示,本創作操作使用係於摺疊自行車10騎乘完畢而欲進行收合移動時,可藉由束結件19鬆緊而調整該座管54向下移動至中輪組60的輪子98抵於地面而定位,及鬆開第一轉折器15使把手管18朝向地面轉折而鄰近該前輪24側,及鬆開第二轉折器17使主架管12折合而讓該前輪24靠向該後輪26,使該把手管18收合於該前輪24及該後輪26之間,且實質高度為相同的第一磁吸件30與第二磁吸件44磁吸定位(如第9圖所示),因而該前輪24及該後輪26即穩定的並列一起且呈相同朝向,以及並列一起的前輪24及後輪26,配合該中輪組60的輪子98位於該前輪24及該後輪26前方,使摺疊後的車架11具有三個輪子穩定的支撐於地面,藉此,可用手握持座椅111推行車架11移動整台摺疊自行車10(如第8圖所示)。如為配合使用者身材及手臂長度,而欲調整握持高度時,即可以進一步向上撥動卡鉤撥桿153,使該卡鉤撥桿153脫離對於該定位座133的扣持,而可以向上掀轉座椅111,使延伸架115轉為朝向縱向,且延伸架115的轉折部117轉為朝向前後方向,如第10圖所示,藉此升高可推行車架11之高度,讓使用者能用手握持延伸架115、轉折部117推行車架11而移動整台摺疊自行車10。Referring to FIG. 8 , FIG. 9 and FIG. 10 , the creation operation is performed by adjusting the seat tube 54 when the folding bicycle 10 is ready to be folded and moved. The wheel 98 moving downward to the middle wheel set 60 is positioned against the ground, and the first deflector 15 is released to turn the handle tube 18 toward the ground adjacent to the front wheel 24 side, and the second deflector 17 is released to make the main frame The tube 12 is folded to allow the front wheel 24 to abut the rear wheel 26, and the handle tube 18 is folded between the front wheel 24 and the rear wheel 26, and the first magnetic member 30 and the second magnetic body have substantially the same height. The suction member 44 is magnetically positioned (as shown in FIG. 9), so that the front wheel 24 and the rear wheel 26 are stably juxtaposed together and in the same orientation, and the front wheel 24 and the rear wheel 26 are juxtaposed together, and the middle wheel set is matched The wheel 98 of the 60 is located in front of the front wheel 24 and the rear wheel 26, so that the folded frame 11 has three wheels stably supported on the ground, whereby the frame 11 can be pushed by the hand holding the seat 111. The entire movable folding bicycle 10 (as shown in FIG. 8). If the grip height is to be adjusted in accordance with the user's body and arm length, the hook lever 153 can be further pushed upward to disengage the hook lever 153 from the positioning seat 133, and can be upward. The rotation of the seat 111 causes the extension frame 115 to be turned toward the longitudinal direction, and the turning portion 117 of the extension frame 115 is turned toward the front-rear direction, as shown in Fig. 10, thereby raising the height of the frame 11 for use. The holder can hold the extension frame 115 by hand, and the turning portion 117 pushes the frame 11 to move the entire folding bicycle 10.

如第1圖至第10圖所示,係本創作摺疊自行車10之第一種形式,如第11圖及第12圖所示,則除了包括第一種形式之結構以外,更進一步在該座管54的下端56與該固定件61之間安裝一延長管171而形成第二種形式之摺疊自行車。即第二種形式之實施例結構,係基於第一種形式之摺疊自行車10包括一車架11、一座管54及一中輪組60,進一步包括一延長管171,該車架11、座管54及中輪組60的結構特徵已由第1圖至第10圖及上述詳細說明所陳述,於此即不再多所贅述。而第二種形式之實施例結構,則是在該座管54的下端56之孔壁面58進一步設置一內螺紋段59,且該延長管171具有沿縱向隔開的一第一端173及一第二端175,該延長管171外表面具有沿第一端173延伸至第二端175的一外螺紋177,一中孔179貫穿該第一端173及該第二端175而在該延長管171內部形成一管內壁191,該延長管171係以該第一端173之外螺紋177螺合該座管54之內螺紋段59。該定位螺帽193螺設在該延長管171的外螺紋177,該定位螺帽193的外輪廓範圍不超出該座管54周面沿縱向投影所涵蓋的範圍。當定位螺帽193於外螺紋177處旋轉至抵靠該座管54的下端56時,螺合於該座管54中的延長管171即受該定位螺帽193抵掣而定位。當定位螺帽193於外螺紋177處不抵靠該座管54的下端56時,該延長管171即可以旋轉升降的調整該延長管171凸出該座管54的下端56之長度,藉此延長管171的旋轉升降操作,而可進一步微調中輪組60的輪子92位於縱向高度之位置,藉此滿足各種不同需求的使用者進行微調操作。As shown in Figures 1 to 10, the first form of the present folding bicycle 10, as shown in Figures 11 and 12, is further in addition to the structure of the first form. An extension tube 171 is mounted between the lower end 56 of the tube 54 and the fixture 61 to form a second form of folding bicycle. That is, the structure of the second embodiment is based on the first form, and the folding bicycle 10 includes a frame 11, a tube 54 and a middle wheel set 60, and further includes an extension tube 171, the frame 11 and the seat tube The structural features of 54 and the middle wheel set 60 have been set forth in Figures 1 through 10 and the above detailed description, and will not be further described herein. In the second embodiment, the inner wall portion 58 of the lower end 56 of the seat tube 54 is further provided with an internal thread segment 59, and the extension tube 171 has a first end 173 and a longitudinal direction. The second end 175, the outer surface of the extension tube 171 has an external thread 177 extending along the first end 173 to the second end 175. A middle hole 179 extends through the first end 173 and the second end 175. A tube inner wall 191 is formed inside the 171, and the extension tube 171 is screwed to the internal thread segment 59 of the seat tube 54 by the external thread 177 of the first end 173. The positioning nut 193 is screwed on the external thread 177 of the extension tube 171, and the outer contour of the positioning nut 193 does not exceed the range covered by the longitudinal projection of the circumferential surface of the seat tube 54. When the positioning nut 193 is rotated at the external thread 177 to abut the lower end 56 of the seat tube 54, the extension tube 171 screwed into the seat tube 54 is positioned by the positioning nut 193. When the positioning nut 193 does not abut the lower end 56 of the seat tube 54 at the external thread 177, the extension tube 171 can be rotated up and down to adjust the length of the extension tube 171 protruding from the lower end 56 of the seat tube 54. The rotary lifting operation of the extension tube 171 is performed, and the wheel 92 of the middle wheel set 60 can be further fine-tuned to be positioned at a longitudinal height, thereby enabling the user to perform fine adjustment operations for various needs.

本創作特點即藉由第一磁吸件30及第二磁吸件44磁吸定位,使車架11收合時之前輪24及後輪26能穩定的朝向相同方向並列一起。且藉由座管54下端56之中輪組60的設置,使車架11收合時降下座管54,而讓中輪組60的輪子98與前輪24及後輪26形成三個輪子支撐於地面,藉此而能方便穩定的推行車架11移動。且因該輪座94及該輪子98的外輪廓範圍不超出該座管54周面沿縱向投影所涵蓋之範圍,因而使用者即使要進一步將該座管54向上調整高度,仍可令輪座94及輪子98收入車架11之中管16中,藉此增加座椅111可調高度範圍。以及,在座椅111與座管54之間設置一翻轉裝置131,且於座椅111的椅架113設置向後延伸的延伸架115,因而座椅111可向上掀轉,而讓延伸架115轉為朝向縱向,藉此增加手部握持推行車架111之高度,而方便高個子之使用者推行收合之車架11。The present invention is characterized in that the first magnetic member 30 and the second magnetic member 44 are magnetically positioned, so that the front wheel 24 and the rear wheel 26 can be stably aligned in the same direction when the frame 11 is folded. And by the arrangement of the wheel set 60 in the lower end 56 of the seat tube 54, the seat tube 54 is lowered when the frame 11 is folded, and the wheel 98 of the middle wheel set 60 and the front wheel 24 and the rear wheel 26 form three wheel supports. The ground can be used to conveniently and stably push the frame 11 to move. Moreover, since the outer contour of the wheel base 94 and the wheel 98 does not exceed the range covered by the longitudinal projection of the circumferential surface of the seat tube 54, the user can make the wheel base even if the seat tube 54 is further adjusted upward. 94 and wheels 98 are received in the tube 16 of the frame 11, thereby increasing the adjustable height range of the seat 111. And, a turning device 131 is disposed between the seat 111 and the seat tube 54, and the extending frame 115 extending rearward is disposed on the seat frame 113 of the seat 111, so that the seat 111 can be turned up and the extension frame 115 can be rotated. In order to face the longitudinal direction, the height of the hand holding frame 111 is increased by the hand, and the taller user is facilitated to carry out the folding frame 11.

本創作的基本教導已如前述各段加以說明,對具有本領域通常技能人仕而言,許多延伸和變化將是顯而易知者,例如,固定件61之複數擴張板62亦可為三片式結構或二片式結構,三片式擴張板62及二片式擴張板62之弧形狀,皆可藉由環性環圈72束設近似圓筒形狀,且可受到第一夾套74及第二夾套80相對移動而推動複數擴張板62向外擴張的抵緊於該座管54之貫穿孔57的內壁面58或抵緊於另一實施例之延長管171的中孔179之管內壁191,而此為熟悉本領域技能人仕所能理解而予以變化組合。The basic teachings of this creation have been described in the preceding paragraphs, and many extensions and variations will be apparent to those having ordinary skill in the art. For example, the plurality of expansion plates 62 of the fasteners 61 may also be three. The chip structure or the two-piece structure, the arc shape of the three-piece expansion plate 62 and the two-piece expansion plate 62 can be approximated by the annular ring 72 and can be subjected to the first jacket. 74 and the second jacket 80 are relatively moved to push the plurality of expansion plates 62 to expand outwardly against the inner wall surface 58 of the through hole 57 of the seat tube 54 or to the middle hole 179 of the extension tube 171 of another embodiment. The inner wall 191 of the tube is a combination of variations that can be understood by those skilled in the art.

由於說明書揭示的本創作可在未脫離本創作精神或大體特徵的其它特定形式來實施,且這些特定形式的一些形式已經被指出,所以,說明書揭示的實施例應視為舉例說明而非限制。本創作範圍是由所附的申請專利範圍界定,而不是由上述說明所界定,對於落入申請專利範圍的均等意義與範圍的所有改變仍將包含在其範圍之內。The present invention disclosed in the specification is to be considered as illustrative and not restrictive. The scope of the present invention is defined by the scope of the appended claims, and is not intended to be limited by the scope of the invention.

10‧‧‧摺疊自行車
11‧‧‧車架
12‧‧‧主架管
14‧‧‧頭管
15‧‧‧第一轉折器
16‧‧‧中管
17‧‧‧第二轉折器
18‧‧‧把手管
19‧‧‧束結件
20‧‧‧前叉
22‧‧‧後叉
24‧‧‧前輪
26‧‧‧後輪
28‧‧‧定位架
29‧‧‧穿孔
30‧‧‧第一磁吸件
32‧‧‧接桿
34‧‧‧固定座
36‧‧‧磁鐵
38‧‧‧彈簧
40‧‧‧螺絲
42‧‧‧墊片
44‧‧‧第二磁吸件
46‧‧‧磁盤
48‧‧‧螺桿
50‧‧‧螺帽
52‧‧‧墊片
54‧‧‧座管
55‧‧‧上端
56‧‧‧下端
57‧‧‧貫穿孔
58‧‧‧孔壁面
59‧‧‧內螺絲段
60‧‧‧中輪組
61‧‧‧固定件
62‧‧‧擴張板
64‧‧‧內側面
66‧‧‧外側面
68‧‧‧凹槽
69‧‧‧第一斜面
70‧‧‧第二斜面
72‧‧‧彈性環圈
74‧‧‧第一夾套
76‧‧‧通孔
78‧‧‧錐部
80‧‧‧第二夾套
82‧‧‧螺孔
84‧‧‧錐部
86‧‧‧螺桿
88‧‧‧內螺孔
90‧‧‧軸承
92‧‧‧定位件
94‧‧‧輪座
95‧‧‧頂部
96‧‧‧固定孔
98‧‧‧輪子
99‧‧‧樞軸
111‧‧‧座椅
113‧‧‧椅架
115‧‧‧延伸架
117‧‧‧轉折部
131‧‧‧翻轉裝置
133‧‧‧定位座
135‧‧‧樞接桿
137‧‧‧固定孔
151‧‧‧卡合座
153‧‧‧卡鉤撥桿
171‧‧‧延長管
173‧‧‧第一端
175‧‧‧第二端
177‧‧‧外螺紋
179‧‧‧中孔
191‧‧‧管內壁
193‧‧‧定位螺帽
311‧‧‧調整套
10‧‧‧Folding bicycle 11‧‧‧Frame 12‧‧‧Main frame 14‧‧‧ head tube 15‧‧‧ First twister 16‧‧‧ Middle tube 17‧‧‧ Second twister 18‧ ‧Handle tube 19‧‧‧Bundle 20‧‧‧ Fork 22‧‧‧Back fork 24‧‧‧ Front wheel 26‧‧‧ Rear wheel 28‧‧‧ Positioning frame 29‧‧‧Perforation 30‧‧‧ first Magnetics 32‧‧‧ Posts 34‧‧‧ Fixings 36‧‧‧ Magnets 38‧‧ Springs 40‧‧‧ Screws 42‧‧‧Gaps 44‧‧‧Second magnetic parts 46‧‧‧ Disks 48‧‧‧ screw 50‧‧ ‧ nut 52‧‧ ‧ gasket 54 ‧ ‧ seat tube 55 ‧ ‧ upper end 56 ‧ ‧ lower end 57 ‧ ‧ through hole 58 ‧ ‧ hole wall 59 ‧ ‧ Screw section 60‧‧‧ Middle wheel set 61‧‧‧Fixed parts 62‧‧‧Expanding plate 64‧‧‧Inside side 66‧‧‧Outer side 68‧‧‧ Groove 69‧‧‧First bevel 70‧‧‧ Second bevel 72‧‧‧elastic ring 74‧‧ First Jacket 76‧‧‧ Through Hole 78‧‧‧ Cone 80‧‧‧Second Jacket 82‧‧‧ Screw Hole 84‧‧‧ Cone 86‧‧‧ Screw 88‧‧‧ Bolt Hole 90‧ ‧ ‧ Bearings 92‧‧‧ Positioning parts 94‧‧ Wheels 95‧‧‧Top 96‧‧‧Fixed holes 98‧‧‧ Wheels 99‧‧‧Pivot 111‧‧‧Seat 113‧‧‧ Chair frame 115 ‧‧‧Extension 117‧‧‧ Turning section 131‧‧‧Flip device 133‧‧‧ Positioning seat 135‧‧‧Pivot rod 137‧‧‧Fixed hole 151‧‧‧Clock seat 153‧‧‧ Rod 171‧‧‧ Extension tube 173‧‧‧ First end 175‧‧‧ Second end 177‧‧‧ External thread 179‧‧‧Medium hole 191‧‧‧ Inside wall 193‧‧ Positioning nut 311‧‧ ‧Adjustment set

第1圖為本創作摺疊自行車展開時的整體外觀圖。The first picture shows the overall appearance of the creation of the folding bicycle.

第2圖為本創作前輪部位設置第一磁吸件的立體分解圖。Fig. 2 is an exploded perspective view showing the first magnetic member of the front wheel portion of the creation.

第3圖為本創作後輪部位設置第二磁吸件的立體分解圖。Fig. 3 is an exploded perspective view showing the second magnetic member of the rear wheel portion of the creation.

第4圖為本創作在自行車架的座管底端設置中輪組件的立體分解圖。Fig. 4 is an exploded perspective view showing the arrangement of the middle wheel assembly at the bottom end of the seat tube of the bicycle frame.

第5圖為第1圖的5-5剖線剖視為中輪組件設置於座管底端的組合剖視圖。Fig. 5 is a sectional view taken along line 5-5 of Fig. 1 as a sectional view showing that the center wheel assembly is disposed at the bottom end of the seat tube.

第6圖為第5圖的6-6剖線剖視圖。Fig. 6 is a sectional view taken along line 6-6 of Fig. 5.

第7圖為本創作中輪組件的輪子周圍尺寸小於自行車架的中管內徑,因而中輪組件可隨著座管調整而收入中管中之示意圖。Fig. 7 is a schematic view showing that the circumference of the wheel of the middle wheel assembly is smaller than the inner diameter of the middle tube of the bicycle frame, so that the middle wheel assembly can be collected into the middle tube as the seat tube is adjusted.

第8圖為本創作摺疊自行車收摺把手及主架管,使前輪與後輪並列,以及降下座管使中輪組件的輪子與並列的前後輪皆抵於地面的側視圖。Figure 8 is a side view of the creation folding bicycle folding handle and the main frame tube, the front wheel and the rear wheel are juxtaposed, and the seat tube is lowered to make the wheel of the middle wheel assembly and the parallel front and rear wheels abut against the ground.

第9圖為本創作摺疊自行車收摺後,使前輪與後輪並列,以及第一磁吸件與第二磁吸件磁吸定位上視圖。Figure 9 is a top view showing the front and rear wheels juxtaposed, and the magnetic attraction of the first magnetic member and the second magnetic member.

第10圖為本創作摺疊自行車收摺後,撥動翻轉裝置的卡鉤撥桿,使座椅得以旋轉90度,而讓使用者可以用手扶持延伸架,因而可方便推動摺疊自行車移動之示意圖。Figure 10 shows the hook of the flipping device after the folding bike is folded, so that the seat can be rotated by 90 degrees, so that the user can hold the extension by hand, so that the folding bicycle can be easily moved. .

第11圖為本創作另一座管形式及該座管下端安裝一延長管,並將中輪組件設置於該延長管底端的剖面分解圖。Figure 11 is a cross-sectional exploded view showing another tube form and an extension tube installed at the lower end of the tube, and the middle wheel assembly is disposed at the bottom end of the extension tube.

第12圖為本創作另一座管形式及該座管下端安裝一延長管,並將中輪組件設置於延長管底端的組合剖視圖。Figure 12 is a cross-sectional view showing another tube form and an extension tube installed at the lower end of the tube, and the middle wheel assembly is disposed at the bottom end of the extension tube.

所有圖式係僅便於解釋本創作基本教導而已,圖式中將對構成較佳實施例之元件的數目、位置、關係、及尺寸之延伸將有所說明,在閱讀及了解本創作的敎導後相關之變化實施屬於業界技能。另外,在閱讀及了解本創作的敎導後,配合特定力量、重量、強度及類似要求之精確尺寸及尺寸比例之改變亦屬業界技能。All of the drawings are merely illustrative of the basic teachings of the present invention, and the extension of the number, position, relationship, and size of the components constituting the preferred embodiment will be explained in the drawings. Post-related changes are implemented in industry skills. In addition, the changes in the exact dimensions and size ratios associated with specific strengths, weights, strengths and similar requirements are also within the skill of the industry after reading and understanding the teachings of this creation.

在不同圖式中係以相同標號來標示相同或類似元件,另外請了解文中諸如“第一"、 “第二”、“前”、“後"、“上”、“中"、“下"、“端"等等及類似用語,係僅便於看圖者參考圖中構造以及僅用於幫助描述本創作而已。In the different drawings, the same reference numerals are used to designate the same or similar elements. In addition, please refer to the text such as "first", "second", "before", "after", "upper", "medium", "lower" , "end", and the like, are merely for the convenience of the viewer in the reference figure and are only used to help describe the creation.

10‧‧‧摺疊自行車 10‧‧‧Folding bicycle

11‧‧‧車架 11‧‧‧ frame

12‧‧‧主架管 12‧‧‧Main frame tube

14‧‧‧頭管 14‧‧‧ head tube

15‧‧‧第一轉折器 15‧‧‧First twister

16‧‧‧中管 16‧‧‧中管

17‧‧‧第二轉折器 17‧‧‧Second twister

18‧‧‧把手管 18‧‧‧Hand tube

19‧‧‧束結件 19‧‧‧Bundle pieces

20‧‧‧前叉 20‧‧‧ Front fork

22‧‧‧後叉 22‧‧‧ rear fork

24‧‧‧前輪 24‧‧‧ front wheel

26‧‧‧後輪 26‧‧‧ Rear wheel

28‧‧‧定位架 28‧‧‧ Positioning frame

30‧‧‧第一磁吸件 30‧‧‧First magnetic parts

36‧‧‧磁鐵 36‧‧‧ Magnet

44‧‧‧第二磁吸件 44‧‧‧Second magnetic parts

46‧‧‧磁盤 46‧‧‧Disk

54‧‧‧座管 54‧‧‧ seat tube

55‧‧‧上端 55‧‧‧Upper

56‧‧‧下端 56‧‧‧Bottom

60‧‧‧中輪組 60‧‧‧ middle wheel set

94‧‧‧輪座 94‧‧·wheel seat

98‧‧‧輪子 98‧‧‧ Wheels

111‧‧‧座椅 111‧‧‧ seats

113‧‧‧椅架 113‧‧‧ Chair frame

115‧‧‧延伸架 115‧‧‧Extension

117‧‧‧轉折部 117‧‧‧ turning section

131‧‧‧翻轉裝置 131‧‧‧Flipping device

133‧‧‧定位座 133‧‧‧ Positioning Block

135‧‧‧樞接桿 135‧‧‧ pivot rod

151‧‧‧卡合座 151‧‧‧Clock seat

153‧‧‧卡鉤撥桿 153‧‧‧ hook lever

311‧‧‧調整套 311‧‧‧Adjustment set

Claims (6)

一種摺疊自行車,包括:   一車架,包括沿一前後方向延伸的一主架管,該主架管二端具有沿垂直於該前後方向的一縱向延伸的一頭管及一中管,一前叉樞設於該頭管,該前叉頂端設置一把手管,該前叉與該把手管之間設置一第一轉折器,該前叉樞設一前輪,該前叉底端設置一第一磁吸件,該主架管設置一第二轉折器,該中管頂緣設置一束結件,該中管外表面具有朝前後方向之後方延伸的一後叉,該後叉樞設一後輪,該後叉底端設置一第二磁吸件,當該前輪及該後輪沿縱向立於一水平地面時,該第一磁吸件及該第二磁吸件於該縱向上的高度位置為實質相等,當該第一轉折器緊固時,該把手管與前叉固結一起,當該第一轉折器鬆開時,該把手管可朝向地面樞轉,當該第二轉折器緊固時,該主架管維持於前後方向,當該第二轉折器鬆開時,該主架管轉折收合使該前輪並列於該後輪側,且該第一磁吸件及該第二磁吸件磁吸定位;   一座管,穿設於該車架的中管中且受到該束結件束緊定位,該座管包括沿縱向隔開的一上端及一下端,一貫穿孔貫穿該上端及該下端而在該座管內部形成一孔壁面,當束結件鬆開時,即解除對於座管束結,因而該座管可在該中管中沿縱向上下移動;   一中輪組,包括一固定件及與該固定件結合的一輪座及樞設於該輪座下側的一輪子,該固定件固設於該座管之下端的孔壁面,該輪子向下凸出該座管的下端,該輪座與輪子的輪廓範圍不超出該座管周面沿縱向投影所涵蓋的範圍,當束結件鬆開且對於該座管向上移動調整高度時,該輪座及輪子可隨該座管的下端進一步收入該中管中;及   一座椅,包括一椅架,該椅架設置於該座管的上端;   當束結件鬆緊而調整該座管向下移動至中輪組的輪子抵於地面定位時,鬆開第一轉折器使該把手管朝向地面轉折,及鬆開第二轉折器而折合該主架管,因而該前輪靠向該後輪側且該第一磁吸件及第二磁吸件磁吸定位,使該前輪及該後輪呈相同朝向的並列一起,因而該車架收合後,即具有三個輪子著地而適於穩定的在地面上推行移動。A folding bicycle comprising: a frame comprising a main frame tube extending in a front-rear direction, the main end of the main tube having a head tube and a middle tube extending perpendicularly to the front-rear direction, a front fork a first tube is disposed between the front fork and the handle tube, the front fork is provided with a front wheel, and the front end of the front fork is provided with a first magnetic attraction. The main frame tube is provided with a second deflector, the top edge of the middle tube is provided with a bundle of knots, the outer surface of the middle tube has a rear fork extending rearward in the front-rear direction, and the rear fork is pivotally provided with a rear wheel. a second magnetic member is disposed at a bottom end of the rear fork. When the front wheel and the rear wheel are longitudinally disposed on a horizontal floor, a height position of the first magnetic member and the second magnetic member in the longitudinal direction is Substantially equal, when the first deflector is fastened, the handle tube is fixed together with the front fork, and when the first deflector is released, the handle tube can be pivoted toward the ground when the second twister is fastened When the main frame tube is maintained in the front-rear direction, when the second folding device is loosened, the main frame tube The folding folding causes the front wheel to be juxtaposed on the rear wheel side, and the first magnetic member and the second magnetic member are magnetically positioned; a tube is inserted into the middle tube of the frame and received by the binding member The sleeve tube includes an upper end and a lower end spaced apart in the longitudinal direction, and a perforated through the upper end and the lower end to form a hole wall surface inside the seat tube, and when the bundle member is loosened, the seat is released a tube bundle so that the seat tube can move up and down in the longitudinal direction of the middle tube; a middle wheel set including a fixing member and a wheel seat coupled with the fixing member and a wheel pivoted on a lower side of the wheel housing, The fixing member is fixed on the hole wall surface of the lower end of the seat tube, and the wheel protrudes downwardly from the lower end of the seat tube, and the contour of the wheel seat and the wheel does not exceed the range covered by the longitudinal projection of the circumferential surface of the seat tube. When the beam is loosened and the height is adjusted upward for the seat tube, the wheel seat and the wheel may further receive the middle tube with the lower end of the seat tube; and a seat includes a seat frame, the seat frame is disposed on the The upper end of the seat tube; adjust the bundle when the bundle is tight When the seat tube moves down to the position of the wheel of the middle wheel set to the ground, the first deflector is released to make the handle tube turn toward the ground, and the second deflector is released to fold the main frame tube, so that the front wheel is turned toward The rear wheel side and the first magnetic member and the second magnetic member are magnetically positioned such that the front wheel and the rear wheel are juxtaposed in the same direction, so that after the frame is folded, three wheels are grounded. It is suitable for stable movement on the ground. 如申請專利範圍第1項所述摺疊自行車,其中,該座椅包括一椅架,該椅架末端具有沿前後方向之後方延伸的一延伸架,該延伸架末端形成沿縱向延伸的一轉折部,該椅架與該座管的上端之間具有一翻轉裝置,該翻轉裝置包括一定位座及樞設於該定位座上的一卡合座,該座椅的椅架設置於該卡合座,該定位座固結於該座管的上端,該卡合座具有一卡鉤撥桿扣持該定位座,當向上撥動卡鉤撥桿時,該卡鉤撥桿脫離對於該定位座的扣持,因而卡合座及座椅可向上掀轉90度,使延伸架轉為朝縱向及轉折部轉為朝前後方向,因而方便使用者用手握持延伸架及推動摺疊後的車架任意移動。The folding bicycle according to claim 1, wherein the seat comprises a seat frame having an extension extending rearward in the front-rear direction, the end of the extension forming a turning portion extending in the longitudinal direction Between the chair frame and the upper end of the seat tube, there is a turning device, the turning device includes a positioning seat and a snap seat pivotally mounted on the positioning seat, the seat frame of the seat is disposed on the engaging seat The positioning seat is fixed to the upper end of the seat tube, and the engaging seat has a hook lever for holding the positioning seat. When the hook lever is pushed upward, the hook lever is disengaged from the positioning seat. The buckle seat and the seat can be turned up 90 degrees, so that the extension frame is turned to the longitudinal direction and the turning portion is turned to the front and rear direction, so that the user can hold the extension frame by hand and push the folded frame. Move freely. 如申請專利範圍第1項所述摺疊自行車,其中,該中輪組的固定件包括一第一夾套、一第二夾套及穿設該第一夾套且螺合該第二夾套的一螺桿,該螺桿表面形成外螺紋,該螺桿內具有沿縱向延伸的一內螺孔,複數擴張板受該第一夾套及該第二夾套夾持,各擴張板係沿縱向延伸而形成弧形狀,各擴張板具有隔開的一外側面及一內凹面,各擴張板的外側面具有一凹槽,各擴張板二側互為相鄰,並以一彈性環圈束設該凹槽,因而複數擴張板束設成一圓筒,該圓筒外徑小於該座管的貫穿孔內徑,以及各擴張板二端具有沿縱向隔開的一第一斜面及一第二斜面,各第一斜面及各第二斜面係由鄰近外側面端朝內凹面傾斜延伸,該第一夾套具有沿縱向延伸的一通孔,該第一夾套具有一錐部,該錐部貼靠各擴張板之第一斜面,該第二夾套具有沿縱向延伸的一螺孔,該第二夾套具有一錐部,該錐部貼靠各擴張板之第二斜面,該第二夾套的螺孔沿縱向對齊該第一夾套之通孔,該螺桿沿縱向向上穿設一軸承及穿入該第一夾套之通孔,且該螺桿螺入該第二夾套之螺孔,該固定件由座管的下端置入貫穿孔,而當螺桿旋轉帶動第二夾套朝第一夾套位移時,該第一夾套的錐部滑動於第一斜面而撐開各擴張板一端,該第二夾套的錐部滑動於第二斜面而撐開各擴張板另一端,因而各擴張板的外側面抵壓於該座管的孔壁面,使固定件固結定位於該面,以及一定位件沿縱向穿設該輪座及螺入該螺桿之內螺孔,因而該輪座結合在該固定件下側。The folding bicycle of claim 1, wherein the fixing component of the middle wheel set comprises a first jacket, a second jacket, and the first jacket is threaded and the second jacket is screwed a screw, the surface of the screw is formed with an external thread, the screw has an inner screw hole extending in the longitudinal direction, and the plurality of expansion plates are sandwiched by the first jacket and the second jacket, and the expansion plates are formed to extend in the longitudinal direction. In the shape of an arc, each of the expansion plates has a spaced outer surface and a concave surface, and the outer surface of each of the expansion plates has a groove, and the two sides of each of the expansion plates are adjacent to each other, and the concave portion is bundled with an elastic ring. a groove, such that the plurality of expanded plate bundles are formed as a cylinder having an outer diameter smaller than an inner diameter of the through hole of the seat tube, and each of the expanded plates has a first inclined surface and a second inclined surface spaced apart in the longitudinal direction, each The first inclined surface and each of the second inclined surfaces extend obliquely from the adjacent outer side end toward the inner concave surface, the first jacket has a through hole extending in the longitudinal direction, the first jacket has a tapered portion, and the tapered portion abuts each expansion a first bevel of the plate, the second jacket having a screw hole extending in a longitudinal direction, the The two jackets have a tapered portion that abuts against the second inclined surface of each of the expansion plates, and the screw holes of the second jacket are longitudinally aligned with the through holes of the first jacket, and the screw is longitudinally disposed with a bearing And penetrating into the through hole of the first jacket, and the screw is screwed into the screw hole of the second jacket, the fixing member is placed into the through hole by the lower end of the seat tube, and when the screw rotates, the second jacket faces the second When a jacket is displaced, the tapered portion of the first jacket slides on the first inclined surface to open one end of each of the expansion plates, and the tapered portion of the second jacket slides on the second inclined surface to open the other end of each expansion plate, thereby The outer side surface of each of the expansion plates is pressed against the wall surface of the seat tube, so that the fixing member is fixedly positioned on the surface, and a positioning member penetrates the wheel base and the screw hole of the screw in the longitudinal direction, so that the wheel The seat is coupled to the underside of the fixture. 一種摺疊自行車,包括:   一車架,包括沿一前後方向延伸的一主架管,該主架管二端具有沿垂直於該前後方向的一縱向延伸的一頭管及一中管,一前叉樞設於該頭管,該前叉頂端設置一把手管,該前叉與該把手管之間設置一第一轉折器,該前叉樞設一前輪,該前叉底端設置一第一磁吸件,該主架管設置一第二轉折器,該中管頂緣設置一束結件,該中管外表面具有朝前後方向之後方延伸的一後叉,該後叉樞設一後輪,該後叉底端設置一第二磁吸件,當該前輪及該後輪沿縱向立於一水平地面時,該第一磁吸件及該第二磁吸件於該縱向上的高度位置為實質相等,當該第一轉折器緊固時,該把手管與前叉固結一起,當該第一轉折器鬆開時,該把手管可朝向地面樞轉,當該第二轉折器緊固時,該主架管維持於前後方向,當該第二轉折器鬆開時,該主架管轉折收合使該前輪並列於該後輪側,且該第一磁吸件及該第二磁吸件磁吸定位;   一座管,穿設於該車架的中管中且受到該束結件束緊定位,該座管包括沿縱向隔開的一上端及一下端,一貫穿孔貫穿該上端及該下端而在該座管內部形成一孔壁面,位於該座管的下端之孔壁面具有一內螺紋段,當束結件鬆開時,即解除對於座管束結,因而該座管可在該中管中沿縱向上下移動;   一延長管,螺合於該座管之內螺紋段,該延長管具有沿縱向隔開的一第一端及一第二端,該延長管外表面具有沿第一端延伸至第二端的一外螺紋,一中孔貫穿該第一端及該第二端而在該延長管內部形成一管內壁,該延長管係以該第一端的外螺紋螺合該座管之內螺紋段,一定位螺帽螺設在該延長管的外螺紋,該定位螺帽的輪廓範圍不超出該座管周面沿縱向投影所涵蓋的範圍,當定位螺帽於外螺紋處旋轉至抵靠該座管的下端時,螺合於該座管中的延長管即受該定位螺帽抵掣而定位,當定位螺帽於外螺紋處而不抵靠該座管的下端時,該延長管即可以旋轉升降的調整該延長管凸出該座管的下端之長度;   一中輪組,包括一固定件及與該固定件結合的一輪座及樞設於該輪座下側的一輪子,該固定件固設於該延長管之第二端的管內壁,該輪子凸出該延長管的第二端,該輪座及該輪子的輪廓範圍不超出該座管周面沿縱向投影所涵蓋的範圍,而當束結件鬆開且對於該座管向上移動調整高度時,該延長管、輪座及該輪子可隨該座管的下端進一步收入該中管中;及   一座椅,包括一椅架,該椅架設置於該座管的上端;   當束結件鬆緊而調整該座管向下移動至中輪組的輪子抵於地面定位時,鬆開第一轉折器使該把手管朝向地面轉折,及鬆開第二轉折器而折合該主架管,因而該前輪靠向該後輪側且該第一磁吸件及第二磁吸件磁吸定位,使該前輪及該後輪呈相同朝向的並列一起,因而該車架收合後,即具有三個輪子著地而適於在地面上推行移動。A folding bicycle comprising: a frame comprising a main frame tube extending in a front-rear direction, the main end of the main tube having a head tube and a middle tube extending perpendicularly to the front-rear direction, a front fork a first tube is disposed between the front fork and the handle tube, the front fork is provided with a front wheel, and the front end of the front fork is provided with a first magnetic attraction. The main frame tube is provided with a second deflector, the top edge of the middle tube is provided with a bundle of knots, the outer surface of the middle tube has a rear fork extending rearward in the front-rear direction, and the rear fork is pivotally provided with a rear wheel. a second magnetic member is disposed at a bottom end of the rear fork. When the front wheel and the rear wheel are longitudinally disposed on a horizontal floor, a height position of the first magnetic member and the second magnetic member in the longitudinal direction is Substantially equal, when the first deflector is fastened, the handle tube is fixed together with the front fork, and when the first deflector is released, the handle tube can be pivoted toward the ground when the second twister is fastened When the main frame tube is maintained in the front-rear direction, when the second folding device is loosened, the main frame tube The folding folding causes the front wheel to be juxtaposed on the rear wheel side, and the first magnetic member and the second magnetic member are magnetically positioned; a tube is inserted into the middle tube of the frame and received by the binding member The sleeve tube includes an upper end and a lower end spaced apart from each other in the longitudinal direction, and a through hole is formed through the upper end and the lower end to form a hole wall surface inside the seat tube, and the hole wall mask at the lower end of the seat tube has a hole a threaded section, when the beam is loosened, the beam is released from the seat tube, so that the seat tube can move up and down in the longitudinal direction of the tube; an extension tube is screwed into the inner thread of the seat tube, the extension The tube has a first end and a second end spaced apart in the longitudinal direction, the outer surface of the extension tube has an external thread extending along the first end to the second end, a middle hole penetrating the first end and the second end Forming a tube inner wall in the extension tube, the extension tube is screwed with the external thread of the first end to the internal thread segment of the seat tube, and a positioning nut is screwed on the external thread of the extension tube, the positioning screw The contour of the cap does not exceed the range covered by the longitudinal projection of the seat tube When the positioning nut is rotated at the external thread against the lower end of the seat tube, the extension tube screwed into the seat tube is positioned by the positioning nut, when the positioning nut is not at the external thread When the lower end of the seat tube is abutted, the extension tube can be rotated up and down to adjust the length of the extension tube protruding from the lower end of the seat tube; a middle wheel set includes a fixing member and a wheel seat coupled with the fixing member and a wheel pivotally disposed on a lower side of the wheel base, the fixing member being fixed to the inner wall of the pipe at the second end of the extension pipe, the wheel protruding from the second end of the extension pipe, the wheel seat and the contour range of the wheel The range covered by the longitudinal projection of the seat tube is not exceeded, and when the beam is loosened and the height is adjusted upward for the seat tube, the extension tube, the wheel base and the wheel may further follow the lower end of the seat tube Revenue in the middle tube; and a seat, including a chair frame, the chair frame is disposed at an upper end of the seat tube; when the beam is loosened, the seat tube is adjusted to move downward to the wheel of the middle wheel set to the ground Release the first deflector to turn the handle tube toward the ground Folding and releasing the second folding device to fold the main frame tube, so that the front wheel is opposite to the rear wheel side and the first magnetic member and the second magnetic member are magnetically positioned, so that the front wheel and the rear wheel are The same orientations are juxtaposed together, so that after the frame is folded, there are three wheels on the ground suitable for pushing on the ground. 如申請專利範圍第4項所述摺疊自行車,其中,該座椅包括一椅架,該椅架末端具有沿前後方向之後方延伸的一延伸架,該延伸架末端形成沿縱向延伸的一轉折部,該椅架與該座管的上端之間具有一翻轉裝置,該翻轉裝置包括一定位座及樞設於該定位座上的一卡合座,該座椅的椅架設置於該卡合座,該定位座固結於該座管的上端,該卡合座具有一卡鉤撥桿扣持該定位座,當向上撥動卡鉤撥桿時,該卡鉤撥桿脫離對於該定位座的扣持,因而卡合座及座椅可向上掀轉90度,使延伸架轉為朝縱向及轉折部轉為朝前後方向,因而方便使用者用手握持延伸架及推動摺疊後的車架任意移動。The folding bicycle according to claim 4, wherein the seat comprises a seat frame, the end of the frame has an extension extending rearward in the front-rear direction, and the end of the extension forms a turning portion extending in the longitudinal direction. Between the chair frame and the upper end of the seat tube, there is a turning device, the turning device includes a positioning seat and a snap seat pivotally mounted on the positioning seat, the seat frame of the seat is disposed on the engaging seat The positioning seat is fixed to the upper end of the seat tube, and the engaging seat has a hook lever for holding the positioning seat. When the hook lever is pushed upward, the hook lever is disengaged from the positioning seat. The buckle seat and the seat can be turned up 90 degrees, so that the extension frame is turned to the longitudinal direction and the turning portion is turned to the front and rear direction, so that the user can hold the extension frame by hand and push the folded frame. Move freely. 如申請專利範圍第4項所述摺疊自行車,其中,該中輪組的固定件包括一第一夾套、一第二夾套及穿設該第一夾套且螺合該第二夾套的一螺桿,該螺桿表面形成外螺紋,該螺桿內具有沿縱向延伸的一內螺孔,複數擴張板受該第一夾套及該第二夾套夾持,各擴張板係沿縱向延伸而形成弧形狀,各擴張板具有隔開的一外側面及一內凹面,各擴張板的外側面具有一凹槽,各擴張板二側互為相鄰,並以一彈性環圈束設該凹槽,因而複數擴張板束設成一圓筒形狀,該圓筒外徑小於該延長管的中孔內徑,各擴張板二端具有沿縱向隔開的一第一斜面及一第二斜面,各第一斜面及各第二斜面係由鄰近外側面端朝內凹面傾斜延伸,該第一夾套具有沿縱向延伸的一通孔,該第一夾套具有一錐部,該錐部貼靠各擴張板之第一斜面,該第二夾套具有沿縱向延伸的一螺孔,該第二夾套具有一錐部,該錐部貼靠各擴張板之第二斜面,該第二夾套的螺孔沿縱向對齊該第一夾套之通孔,該螺桿沿縱向向上穿設一軸承及穿入該第一夾套之通孔,且該螺桿螺入該第二夾套之螺孔,該固定件由該延長管的第二端置入中孔,而當螺桿旋轉帶動第二夾套朝第一夾套位移時,該第一夾套的錐部滑動於第一斜面而撐開各擴張板一端,該第二夾套的錐部滑動於第二斜面而撐開各擴張板另一端,因而各擴張板的外側面抵壓於該延長管的管內壁,使固定件固定於該延長管中,以及一定位件沿縱向穿設該輪座及螺入該螺桿之內螺孔,因而該輪座結合在該固定件下側。The folding bicycle according to claim 4, wherein the fixing member of the middle wheel set comprises a first jacket, a second jacket, and the first jacket is threaded and the second jacket is screwed a screw, the surface of the screw is formed with an external thread, the screw has an inner screw hole extending in the longitudinal direction, and the plurality of expansion plates are sandwiched by the first jacket and the second jacket, and the expansion plates are formed to extend in the longitudinal direction. In the shape of an arc, each of the expansion plates has a spaced outer surface and a concave surface, and the outer surface of each of the expansion plates has a groove, and the two sides of each of the expansion plates are adjacent to each other, and the concave portion is bundled with an elastic ring. a groove, and thus the plurality of expanded sheets are formed in a cylindrical shape, the outer diameter of the cylinder being smaller than the inner diameter of the middle hole of the extension tube, and the two ends of each of the expansion plates have a first inclined surface and a second inclined surface spaced apart in the longitudinal direction, respectively The first inclined surface and each of the second inclined surfaces extend obliquely from the adjacent outer side end toward the inner concave surface, the first jacket has a through hole extending in the longitudinal direction, the first jacket has a tapered portion, and the tapered portion abuts each expansion a first bevel of the plate, the second jacket having a screw hole extending in a longitudinal direction, the The two jackets have a tapered portion that abuts against the second inclined surface of each of the expansion plates, and the screw holes of the second jacket are longitudinally aligned with the through holes of the first jacket, and the screw is longitudinally disposed with a bearing And a through hole penetrating the first jacket, and the screw is screwed into the screw hole of the second jacket, the fixing member is inserted into the middle hole by the second end of the extension tube, and the second clamp is driven by the rotation of the screw When the sleeve is displaced toward the first jacket, the tapered portion of the first jacket slides on the first slope to open one end of each of the expansion plates, and the tapered portion of the second jacket slides on the second slope to open the expansion plates One end, and thus the outer side of each of the expansion plates is pressed against the inner wall of the tube of the extension tube, so that the fixing member is fixed in the extension tube, and a positioning member penetrates the wheel seat in the longitudinal direction and the screw hole is screwed into the screw Therefore, the wheel base is coupled to the underside of the fixing member.
TW105217827U 2016-11-22 2016-11-22 Folding bike TWM538014U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106945776A (en) * 2017-05-06 2017-07-14 浙江凯驰电动科技有限公司 A kind of vehicle frame of folding bicycle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106945776A (en) * 2017-05-06 2017-07-14 浙江凯驰电动科技有限公司 A kind of vehicle frame of folding bicycle

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