WO1999046159A1 - Systeme de deplacement et d'acceleration pour bicyclette - Google Patents

Systeme de deplacement et d'acceleration pour bicyclette Download PDF

Info

Publication number
WO1999046159A1
WO1999046159A1 PCT/KR1998/000126 KR9800126W WO9946159A1 WO 1999046159 A1 WO1999046159 A1 WO 1999046159A1 KR 9800126 W KR9800126 W KR 9800126W WO 9946159 A1 WO9946159 A1 WO 9946159A1
Authority
WO
WIPO (PCT)
Prior art keywords
gear
gear member
travelling
latch
pedals
Prior art date
Application number
PCT/KR1998/000126
Other languages
English (en)
Inventor
Jong Il Park
Original Assignee
Jong Il Park
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 Jong Il Park filed Critical Jong Il Park
Priority to AU74563/98A priority Critical patent/AU7456398A/en
Publication of WO1999046159A1 publication Critical patent/WO1999046159A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M1/00—Rider propulsion of wheeled vehicles
    • B62M1/36—Rider propulsion of wheeled vehicles with rotary cranks, e.g. with pedal cranks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
    • B62M11/04—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio
    • B62M11/14—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with planetary gears
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
    • B62M11/04—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio
    • B62M11/14—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with planetary gears
    • B62M11/145—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with planetary gears built in, or adjacent to, the bottom bracket

Definitions

  • the present invention relates to a travelling and accelerating system for bicycles, and more particularly to, an improved travelling and accelerating system for bicycles by which the bicycle may travel forward regardless of rotation direction of pedals and accelerated travel is also possible without any change gears.
  • bicycles include front and rear wheels, pedals to generate power by being stepped by a user, and a power transmission means to transfer the power generated by rotation of the pedals to the rear wheel.
  • the power transmission means includes a driving sprocket mounted at the pedals, a driven sprocket having a latch for transmit power toward the rear wheel in one direction, and a chain to connect the driving sprocket to the driven sprocket.
  • the driven sprocket is provided with a latch member to be engaged with the rear wheel only in one direction.
  • the conventional bicycle travels only in one direction, that is, forwardly by rotation power which is generated by rotating the pedals forward and transmitted through the chain connecting the driving sprocket to the driven sprocket.
  • Publication No. 95-13589 has suggested a reverse travelling device which includes a forward clutch to alternatively transmit driving power to a driving sprocket, a feed shaft of which engagement state is changable by means of an operation lever, an idle gear and a reversing gear wheel, so that the bicycle may travel forward even in case of backward rotation of the pedals, developing the user's feet and lets in balance.
  • the reverse travelling device has, however, still problems that the structure thereof is too complicated and this reverse travelling device cannot be adapted to the driving wheel at the driven sprocket side of the currently widespread bicycles, so that a new bicycle should be purchased.
  • the present invention is directed to a travelling and accelerating system for bicycles which includes a frame having a front wheel at a front part and a rear wheel at a rear part thereof; a pair of pedals fixed at both sides of a shaft which is rotatably supported at a boss being fixed under a center of the frame, to be driven by a user's feet; a driving sprocket axially fixed on the shaft for transmitting rotation power via a chain to the rear wheel; a housing attached at one side of the boss to be closed with a cap and having a hollow cross- sectional shape to accomodate accessories; a pinion axially fixed on the shaft beside the driving sprocket in the housing; a first gear member accommodated in the housing and having an inner gear part and an outer gear part; a second gear member movably contacted the first gear member and provided with planetary gears to be engaged with the inner gear part of the first gear, the planetary gears being fixed by pins and rotatable with relation to
  • a conversion control part connected to a release cable outside the housing for setting a travel mode or an acceleration mode corresponding to rotation directions of pedals by controlling engagement of the first gear member and the second gear member according to the user's selection.
  • the user may simply change the pedals' rotation direction forward and backward by operating the conversion lever while keeping forward travelling of the bicycle, thereby promoting balanced development of leg-muscles.
  • Fig. 1 is a disassembled perspective view showing the construction of a first embodiment of the present invention
  • Fig. 2 is a schematic view of a principal part of the first embodiment which is in operation of forward travelling
  • Fig. 3 is a schematic view of a principal part of the first embodiment which is in operation of accelerated forward travelling;
  • Fig. 4 is a schematic view of a principal part of the first embodiment which is in operation of backward travelling;
  • Fig 5 is an enlarged cross -sectional view showing principal parts which are assembled;
  • Fig. 6 is a front view showing the principal parts of Fig. 5;
  • Fig. 7 is a disassembled perspective view showing the construction of a second embodiment of the present invention.
  • Fig. 8 is a schematic view of a principal part of the second embodiment which is in operation of forward travelling;
  • Fig. 9 is a schematic view of a principal part of the second embodiment which is in operation of accelerated forward travelling;
  • Fig. 10 is a schematic view of a principal part of the second embodiment which is in operation of backward travelling.
  • Fig. 11 is a partially taken cross-sectional view showing principal parts which are assembled.
  • Fig. 1 to Fig. 6 shows a construction of a travelling and accelerating system for bicycles according to a first embodiment of the present invention, in which a bicycle may travel forward by means of forward and backward latch means 80 and 90 with engagement with latches 81 and 82 of a latch protrusion 72 and a latch gear 73.
  • Fig. 7 to Fig. 11 shows a construction of a travelling and accelerating system for bicycles according to a second embodiment of the present invention, in which a bicycle may travel forward by the forward and backward latch means 80 and 90 formed in a clutch bearing structure.
  • Fig. 1 and Fig. 7 are perspective views respectively showing disassembled principal parts of the present invention
  • Fig. 2 and Fig. 8 are operational views respectively showing forward travelling states wherein rotation control latches 110 and 120 rise up and a first gear member 60 and a second gear member 70 do not engage with each other so that pedals 20 rotate in a same direction with a travelling direction of a bicycle.
  • Fig. 3 and Fig. 9 are operational views respectively showing that a driving sprocket 30 is driven by the rotation control latch 10 which controls rotation of the first gear member 60 and sped up by a planetary gear 74 in a predetermined ratio.
  • Fig. 4 and Fig. 10 are operational views respectively showing forward travelling in case of backward rotation of the. pedals 20, since the rotation control latch 120 controlling the rotation of the second gear member 70 operates in an advanced position to prevent the second gear member 70 from rotating.
  • the bicycle includes a frame 10 forming a frame body of the bicycle, front and rear wheels, which are not shown, provided rotatably to the frame 10, and a boss 21 fixed to mount the pedals 20 under a center of the frame 10 to support rotation of the pedals 20.
  • the pedals 20 are fixed inside the boss 21 and a shaft 22 is rotatably inserted through the inside of the boss 21 by means of bearings (is not shown). Therefore, when a user steps the pedals 20 at both sides of the boss 21, rotational power is transmitted to the shaft 22 so that the rotational power drives a driven sprocket (is not shown) at the rear wheel via a chain 31 by means of the driving sprocket 30 which is axially mounted on the shaft 22, thereby the bicycle travelling forward.
  • the driving sprocket 30 which is axially mounted on the shaft 22 is positioned in a housing 40 to transmit the rotational power via the chain 31.
  • the housing 40 is fixed on the frame 10 at one side of the boss 21 and closed with a cap 41 at its opening, accommodating various accessaries therein, so that external impurities may be prevented from being introduced therein and viscosity of oil which is necessary for operating the accessaries may be protected.
  • the housing 40 accommodates the driving sprocket 30, a pinion 50, the first gear member 60, and the second gear member
  • the pinion 50 is axially fixed on the shaft 22 at one side of the driving sprocket 30 to rotate together with the driving sprocket 30.
  • the housing 40 has an outer gear 61 at its outer peripheral and an inner gear 62 formed at its inner peripheral, and the first gear member 60 is positioned in the hollow inside of the housing 40, wherein the first gear member 60 has a plurality of latch protrusions 63 which are formed in one direction, as shown in Fig. 1 to Fig. 6.
  • the first gear member 60 is coupled with the second gear member 70, both first gear member 60 and the second gear member 70 being movable each other but unable to be separated from each other.
  • the second gear member 70 is formed with a plurality of outer gears 71 and fixed with a plurality of the planetary gears 74 by means of pins 75.
  • the planetary gears 74 are fixed to the center of the second gear member 70 and engaged with the inner gear 62 of the first gear member 60, being rotatably with relation to the pins 75 in the housing 40.
  • the second gear member 70 has a plurality of latch gears 73 in a predetermined interval along an inner peripheral of a center opening of the second gear member 70.
  • the inner diameter of the first gear member 60 is the same with the inner diameter of the second gear member 70 and the latch protrusions
  • the first and second gear members 60 and 70 are provided with a latch member 85 which has latches 81 and 82 facing each other at different positions in a predetermined interval on the latch means 80, so that the latches 81 and 82 are respectively engaged with the latch protrusions 63 and the latch gears 73.
  • the planetary gears 74 control travelling speed of the bicycle, for example, in LI
  • a conversion control part 100 is mounted outside the housing 40 to selectively control the latch member 85 to function in the LI Forward Travelling Mode and LI Backward Travelling mode, or Accelerated Travelling mode to a predetermined speed.
  • the conversion control part 100 controls the travelling by fixing any one or both of the first and second gear members 60 and 70 not to rotate, or by making them rotate freely.
  • a case 121 is attached to the housing 40 and rotation control latches 110 and 120 are accommodated in the case 121 to be associated with the inside of the housing 40 and coupled with a cam shaft 111 to be controlled thereby.
  • the cam shaft 111 is connected with a release cable 104 which is provided at a convenient position with the user, for example, a position around a handle of the bicycle, so that the user may change a position of the cam shaft 111 by means of the release cable 104 for decreasing or increasing the rotation control latches 110 and 120, thereby controlling the rotation of the first gear member 60 and the second gear member 70.
  • the case 121 has a hollow inside and surrounds the conversion control part 100, forming a path from outside the housing 40 to the hollow inside thereof.
  • the cam shaft 111 passes through the case 121 and is rotatably supported at both end parts.
  • the cam shaft 111 is supported by a supporting part which is integrally formed to the housing 40 and the case 121 functions only to protect the conversion control part 100 from outside by surrounding it.
  • the cam shaft 111 is formed with cam protrusions 101 and 102 at different positions which control positions of a pair of the rotation control latches 110 and 120 thereon.
  • the cam shaft 111 is connected at its one end part to a conversion selection lever (not shown) and the release cable 104 which are positioned around the handle of the bicycle, so that rotation angle of the cam shaft 111 is converted by a wire which is pulled in response to manipulation of the conversion selection lever.
  • the rotation control latches 110 and 120 have a sharp end part like a knife and are interposed between teeth of the first and the second gear members 60 and 70.
  • the first and second gear members 60 and 70 may be engaged with each other, of which center portions are rotatably mounted on the axis 30.
  • the rotation control latches 110 and 120 further have an upper part, which is elastically supported by a spring 131 to rotate with relation to an axial pin 130 according to positions of the cam protrusions 101 and 102 in response to the position conversion of the cam shaft 111, thereby controlling the rotation of the first and second gear members 60 and 70.
  • the latches 110 and 120 are mounted at a symmetrical position in a pair in the case 121, wherein the latch 110 being able to be engaged with the first gear member 60 and the latch
  • a pressure coil spring is elastically mounted in the inner walls of the case 121 and functions as the spring 131 to elastically support the cam protrusions 101 and 102.
  • a torsion spring like a wire is adapted as the spring 131 and effects the same function.
  • clutch bearings 91 and 92 instead the forward and backward latch means 80 and 90.
  • a first gear member 60 has a sleek inner peripheral 62 without teeth, so that a clutch bearing 91 is inserted in the inner peripheral 62, the clutch bearing 91 being provided with a plurality of balls 91c and springs 91d in a predetermined interval.
  • a second gear member 70 is also inserted with a clutch bearing 92 in the same manner with the first gear member 60.
  • the clutch bearings 91 and 92 are respectively formed with a plurality of grooves 91a and 92a in a predetermined interval and have slanted surfaces 91b and 92b respectively, so that the balls 91c and 92c and the springs 91d and 92d are respectively fitted into the grooves 91a and 92a.
  • the cam shaft 111 connected to the release cable 104 is in a neutral position and the first and second gear members 60 and 70 are not engaged with the pair of rotation control latches 110 and 120 since the rotation control latches 110 and 120 are in contact with the cam protrusions 101 and 102.
  • the latch member 85 is elastically provided with latches 81 and 82 of which opening directions are opposite. Therefore, the latches 82 are engaged with the latch gears 73 of the second gear member 70, so that the latch member 85 is coupled with the second gear member 70 integrally. Simultaneously the other latches 81 are engaged with the latch protrusions 63 of the first
  • the clutch bearings 91 and 92 become coupled with the first and the second gear members 60 and 70 integrally, preventing backward rotation of the first gear member 60.
  • the planetary gears 74 movably mounted to the second gear member 70 are engaged with the inner gear 62 of the first gear member 60, so that it becomes impossible for the planetary gears 74 to rotate. Therefore, when the pedals 20 are stepped by the user for forward travelling, the latch member 85 which is coupled with the first gear member 60 and the second gear member 70 rotates, so that the planetary gears 74 supported by the pins 75 race and the pinion 50 which is fixed by the driving sprocket 30 rotates in the clockwise direction, being engaged among the planetary gears 74, thereby the driving power being transmitted to the rear wheels via the chain 31.
  • the latch 82 of the latch member 85 rotates in a direction to be released from the latch gear 73 of the second gear member 70, so that the stopping of the rotation of the pedals 20 while travelling the bicycle or backward stepping of the pedals 20 become possible without transmitting the power.
  • the cam shaft 111 connected to the release cable 104 rotates in a direction, so that the first gear member 60 is not engaged with the pair of rotation control latches 110 and 120 since the rotation control latches 110 and 120 are in contact with the cam protrusions 101 and 102, and the second gear member 70 is rotatable.
  • the latch member 85 is fixed to the pedals 20 by means of the bolts 83.
  • the clutch bearing 92 is coupled with the shaft 22 having a tetragonal end part, wherein the clutch bearing 91 is coupled with the clutch bearing 92 by a shaft part 92s and a boss 91s respectively formed in the shape of tetragonal, and the clutch bearings 91 and 92 rotate together.
  • the latch member 85 has the opposite latches 81 and 82 at different positions in a predetermined interval on the latch means
  • rotation control latch 110 is in an advanced position and engaged with the teeth of the first gear member 60, so that the first gear member 60 is impossible to rotate.
  • the slanted surface 91b of the clutch bearing 91 is formed in an opposite direction to the slanted surface 92b of the clutch bearing 92, so that the first gear member 60 and the second gear member 70 are controlled to rotate in a different direction from each other.
  • the planetary gears 74 movably mounted to the second gear member 70 are engaged with the inner gear 62 of the first gear member 60.
  • the planetary gears 74 race in response to the rotation of the second gear member 70 since a common center of the planetary gears 74 rotates in the same direction with the second gear member 70.
  • the planetary gears 74 rotate by the inner gear 62 of the first gear member 60, so that the pinion 50 being engaged among the planetary gears 74 obtains a rotation number which is increased by both the racing and the rotation of the planetary gears 74.
  • the latch member 85 is elastically provided with latches 81 and 82 of which opening directions are opposite. Therefore, the latches 82 are not engaged with the latch gears 73 of the second gear member 70, and simultaneously the other latches 81 are engaged with the latch protrusions 63 of the first gear member
  • the rotation ratio is 1-1.
  • the bicycle may run forward regardless of the forward rotation and the backward rotation of the pedals, so that the user may develop their leg-muscles in balance and feel little bored and tired while riding the bicycle as well as accelerating the running speed selectively. Furthermore, according to the present invention, any additional change gear is not necessary any more and the users may obtain a bicycle at a relatively low cost.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)
  • Structure Of Transmissions (AREA)

Abstract

L'invention concerne un système de déplacement et d'accélération pour bicyclettes, qui comporte un cadre; deux pédales; un plateau d'entraînement; un boîtier; un pignon; un premier élément d'engrenage logé dans le boîtier, et présentant une partie intérieure d'engrenage et une partie extérieure d'engrenage; un deuxième élément d'engrenage en contact amovible avec le premier élément d'engrenage, et formé de roues planétaires destinées à se mettre en prise avec la partie intérieure d'engrenage du premier engrenage; un moyen de blocage inséré respectivement dans le premier élément d'engrenage et dans le deuxième élément d'engrenage de façon à les faire tourner; et un élément de commande de conversion connecté à un câble de déblocage situé à l'extérieur du boîtier, qui sert à déterminer un mode d'utilisation de bicyclette en fonction du sens de rotation des pédales par la commande sélective de la mise en prise du premier élément d'engrenage et du deuxième élément d'engrenage, de sorte que l'utilisateur peut simplement changer le sens de rotation des pédales, vers l'avant ou vers l'arrière, en actionnant une manette de conversion tout en continuant à faire avancer la bicyclette; et accroître de manière sélective la vitesse de déplacement en augmentant le nombre de rotations.
PCT/KR1998/000126 1998-03-11 1998-05-21 Systeme de deplacement et d'acceleration pour bicyclette WO1999046159A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU74563/98A AU7456398A (en) 1998-03-11 1998-05-21 Travelling and accelerating system for bicycle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1019980008152A KR19980080145A (ko) 1997-03-11 1998-03-11 자전거의 주행 및 가속장치
KR1998/8152 1998-03-11

Publications (1)

Publication Number Publication Date
WO1999046159A1 true WO1999046159A1 (fr) 1999-09-16

Family

ID=19534609

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR1998/000126 WO1999046159A1 (fr) 1998-03-11 1998-05-21 Systeme de deplacement et d'acceleration pour bicyclette

Country Status (3)

Country Link
KR (2) KR19980080145A (fr)
AU (1) AU7456398A (fr)
WO (1) WO1999046159A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1398264A2 (fr) * 2002-09-16 2004-03-17 Dotek Corporation Ensemble de roues dentées pour bicyclette
DE10339207A1 (de) * 2003-08-21 2005-06-02 Nicolai, Karlheinz, Dipl.-Ing. (TU) Fahrradrahmen mit integriertem Getriebegehäuse und Getriebegehäuse für einen Fahrradrahmen
EP1980483A1 (fr) * 2007-04-11 2008-10-15 Sram Corporation Système d'assemblage pour transmission de bicyclette interne
EP1980484A1 (fr) 2007-04-11 2008-10-15 Sram Corporation Système d'assemblage pour transmission de bicyclette interne
US7874955B2 (en) 2007-09-28 2011-01-25 Patterson Bicycle Transmission, Llc Bicycle transmission system
US8162340B2 (en) 2008-12-31 2012-04-24 Sam Patterson Spiral rotor chain shifting system
US8342553B2 (en) 2009-05-27 2013-01-01 Patterson Bicycle Transmission Llc Mounting method for bottom bracket planetary
CN113226909A (zh) * 2018-11-26 2021-08-06 株式会社斯皮德 一种用于增加旋转力的曲柄可变速齿轮装置

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010054173A (ko) * 1999-12-03 2001-07-02 정재연 자전거용 전진구동 변환장치
KR100356734B1 (ko) * 2000-01-22 2002-10-18 김진욱 자전거의 역구동 페달링 장치
KR100435104B1 (ko) * 2001-12-28 2004-06-10 허현강 페달의 전후구동을 위한 동력전달장치
KR100491483B1 (ko) * 2002-12-06 2005-05-27 이흥복 일방향 동력전달 장치
KR102447988B1 (ko) 2021-01-13 2022-09-27 승백호 페달의 정회전 및 역회전을 이용한 전진 구동 자전거

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US692658A (en) * 1900-08-15 1902-02-04 Reuben M Head Variable-speed driving mechanism.
GB2263511A (en) * 1992-01-02 1993-07-28 Dianlin Chang A driven free wheel change speed planetary gearing for bicycles
EP0687622A1 (fr) * 1994-06-14 1995-12-20 M.B.I. Co., Ltd. Dispositif pour la marche avant d'une bicyclette
WO1997021587A1 (fr) * 1995-12-08 1997-06-19 World Industry Co., Ltd. Appareil permettant de modifier le sens de force motrice d'une bicyclette

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US692658A (en) * 1900-08-15 1902-02-04 Reuben M Head Variable-speed driving mechanism.
GB2263511A (en) * 1992-01-02 1993-07-28 Dianlin Chang A driven free wheel change speed planetary gearing for bicycles
EP0687622A1 (fr) * 1994-06-14 1995-12-20 M.B.I. Co., Ltd. Dispositif pour la marche avant d'une bicyclette
WO1997021587A1 (fr) * 1995-12-08 1997-06-19 World Industry Co., Ltd. Appareil permettant de modifier le sens de force motrice d'une bicyclette

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1398264A2 (fr) * 2002-09-16 2004-03-17 Dotek Corporation Ensemble de roues dentées pour bicyclette
EP1398264A3 (fr) * 2002-09-16 2005-04-27 Dotek Corporation Ensemble de roues dentées pour bicyclette
DE10339207A1 (de) * 2003-08-21 2005-06-02 Nicolai, Karlheinz, Dipl.-Ing. (TU) Fahrradrahmen mit integriertem Getriebegehäuse und Getriebegehäuse für einen Fahrradrahmen
DE10339207B4 (de) * 2003-08-21 2008-01-10 Nicolai, Karlheinz, Dipl.-Ing. (TU) Fahrradrahmen mit integriertem Getriebegehäuse und Getriebegehäuse für einen Fahrradrahmen
US7338058B2 (en) 2003-08-21 2008-03-04 Karlheinz Nicolai Bicycle frame with an integrated gear housing, and a gear housing for a bicycle frame
EP1980483A1 (fr) * 2007-04-11 2008-10-15 Sram Corporation Système d'assemblage pour transmission de bicyclette interne
EP1980484A1 (fr) 2007-04-11 2008-10-15 Sram Corporation Système d'assemblage pour transmission de bicyclette interne
US7699329B2 (en) 2007-04-11 2010-04-20 Sram, Llc Mounting system for an internal bicycle transmission
US7708295B2 (en) 2007-04-11 2010-05-04 Sram, Llc Mounting system for an internal bicycle transmission
US7712566B2 (en) 2007-04-11 2010-05-11 Sram, Llc Bicycle transmission
US7874955B2 (en) 2007-09-28 2011-01-25 Patterson Bicycle Transmission, Llc Bicycle transmission system
US8033945B2 (en) 2007-09-28 2011-10-11 Patterson Bicycle Transmission, Llc Bicycle transmission system
US8162340B2 (en) 2008-12-31 2012-04-24 Sam Patterson Spiral rotor chain shifting system
US8342553B2 (en) 2009-05-27 2013-01-01 Patterson Bicycle Transmission Llc Mounting method for bottom bracket planetary
CN113226909A (zh) * 2018-11-26 2021-08-06 株式会社斯皮德 一种用于增加旋转力的曲柄可变速齿轮装置

Also Published As

Publication number Publication date
KR19990077750A (ko) 1999-10-25
AU7456398A (en) 1999-09-27
KR19980080145A (ko) 1998-11-25

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