WO2010121394A1 - Bicyclette à transmission de type oscillant et mécanisme de transmission du type oscillant - Google Patents

Bicyclette à transmission de type oscillant et mécanisme de transmission du type oscillant Download PDF

Info

Publication number
WO2010121394A1
WO2010121394A1 PCT/CN2009/000425 CN2009000425W WO2010121394A1 WO 2010121394 A1 WO2010121394 A1 WO 2010121394A1 CN 2009000425 W CN2009000425 W CN 2009000425W WO 2010121394 A1 WO2010121394 A1 WO 2010121394A1
Authority
WO
WIPO (PCT)
Prior art keywords
telescopic rod
abutting portion
steel ball
section
convex
Prior art date
Application number
PCT/CN2009/000425
Other languages
English (en)
Chinese (zh)
Inventor
林进锦
Original Assignee
农豪实业股份有限公司
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 农豪实业股份有限公司 filed Critical 农豪实业股份有限公司
Priority to PCT/CN2009/000425 priority Critical patent/WO2010121394A1/fr
Publication of WO2010121394A1 publication Critical patent/WO2010121394A1/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
    • 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
    • B62M1/00—Rider propulsion of wheeled vehicles
    • B62M1/24—Rider propulsion of wheeled vehicles with reciprocating levers, e.g. foot levers
    • B62M1/26—Rider propulsion of wheeled vehicles with reciprocating levers, e.g. foot levers characterised by rotary cranks combined with reciprocating levers

Definitions

  • the present invention relates to an oscillating transmission bicycle, and more particularly to an oscillating transmission power unit. Background technique
  • the stepping device of the above bicycle mainly adds a stepping device between the crank 1 of the bicycle and the toothed disc 2 , and the stepping device mainly has a socket wrench 3 , the sleeve One end of the wrench 3 is accommodated by a flywheel and is engaged with the rotating shaft of the toothed disc 2.
  • the other end of the socket wrench 3 is provided with an auxiliary lever of a bearing for the pedal of the bicycle to be worn by the bearing. It is locked to the crank 1.
  • the sleeve wrench 3 is provided with one end of the bearing to be driven to swing up and down, so that the socket wrench is 3
  • the flywheel at the other end drives the toothed disc 2 to rotate, and then drives the rear wheel of the bicycle to rotate via the chain.
  • the torque transmitted to the rear wheel can be increased by the oscillating transmission of the socket wrench 3 to achieve a labor-saving effect.
  • the present invention mainly provides an oscillating transmission device with a telescopically varying oscillating lever, which has no abrupt portion in its configuration, and can avoid interference with the user to enhance the comfort of use. And security.
  • the present invention provides an oscillating transmission bicycle using the foregoing transmission device, which has the advantages of being practical, safe, and beautiful.
  • the technical solution adopted by the present invention includes:
  • a bicycle body having at least one wheel
  • a toothed disc device coupled to the wheel of the bicycle for transmitting power to the wheel, the sprocket device having a toothed disc;
  • a rotating shaft fixed to the center of the toothed disc, wherein the rotating shaft is rotatably shafted on the bicycle body;
  • a pedaling device having a pair of cranks and corresponding pedals, the cranks being rotatably shafted on the bicycle body ;
  • a swinging device having a one-way bearing and a swinging rod, the one-way bearing having a central hole, the rotating shaft being axially fixed in a central hole of the one-way bearing, and swinging
  • the rod comprises a plurality of telescopic rods, wherein the last telescopic rod end is rotatably arranged between the pedal and the crank; and the front end of the first telescopic rod is fixed on the outer side of the one-way bearing, when the foot
  • the stepping device drives the swinging rod to swing up and down, the swinging rod can passively perform the axial reciprocating motion of the extension and retraction, and drives the one-way bearing to make the rotating shaft rotate in one direction.
  • the technical solution adopted by the present invention further includes:
  • a foot pedal device having a pair of cranks and corresponding pedals
  • a swinging device having a one-way bearing and a swinging rod, the one-way bearing having a central hole for receiving and fixing the rotating shaft, and the swinging rod comprising a plurality of telescopic rods that are sleeved,
  • the end of the last section of the telescopic rod is rotatably arranged between the pedal and the crank, and the front end of the first section of the telescopic rod is fixed on the outer side of the one-way bearing.
  • the end of the last section of the telescopic rod described in the present invention has a radial shaft hole, and a bearing is accommodated in the shaft hole to be inserted into the bearing by a shaft of the pedal. Locked on the crank, The pedal can be made to rotate relative to the last section of the telescopic rod by the bearing; - the multi-section telescopic rod of the plurality of sockets in the present invention, the inner peripheral surface of the end of the former telescopic rod
  • the ring is provided with a first convex abutting portion, and the outer peripheral surface of the front end of the lower telescopic rod is provided with a second convex abutting portion.
  • the first convex abutting portion is The second convex abutting portions abut to prevent the telescopic rods from being separated from each other;
  • a second convex abutting portion is protruded from the ring, and the inner peripheral surface of the end of the front telescopic rod that is sleeved on the last section of the telescopic rod is looped. Protruding a first convex abutting portion, wherein when the telescopic rod is axially elongated, the first convex abutting portion abuts the second convex abutting portion to prevent the last portion of the The telescopic rod is separated from the previous telescopic rod;
  • the first section of the first telescopic rod of the present invention is recessed on one side thereof to form a chamber for receiving the one-way bearing, and has a perforation through the chamber for the shaft to penetrate into the chamber and the one-way
  • the bearing shaft is fixed;
  • the inner peripheral surface of the end of the first section of the first telescopic rod described in the present invention has a first convex abutting portion, and is sleeved on the outer peripheral surface of the front end of the lower telescopic rod of the first section telescopic rod
  • the upper ring has a second convex abutting portion, so that when the telescopic rod is axially elongated, the first convex abutting portion abuts the second convex abutting portion to prevent the
  • the first section of the telescopic rod and the next section of the telescopic rod are separated from each other;
  • the first protruding portion is provided with a first sliding member
  • the second protruding portion is provided with a second sliding member for the first sliding member and the second sliding member.
  • the sliding member reduces the friction when expanding and contracting
  • the first sliding member described in the present invention is a wear ring or a steel ball which is only limited by the steel ball ring and can only be rotated in place, and is formed on the first convex portion to be
  • the steel ball and the steel ball groove accommodated by the steel ball ring are either selected;
  • the second sliding member is a wear ring or a steel ball which is restricted by the majority of the steel ball ring and can only be rotated in place and in the Any one of the steel bead grooves formed on the two convex abutting portions for accommodating the steel ball and the steel ball ring;
  • a dust jacket is disposed on the opening edge of the end of each section of the telescopic rod;
  • DRAWINGS 1 is a schematic structural view of a conventional swing type transmission bicycle
  • Figure 3 is a partially exploded perspective view of the embodiment of Figure 2;
  • FIG 4 is a schematic view showing the operation of the swinging lever in the embodiment shown in Figure 2;
  • FIG. 5 is a schematic view showing the operation of the swinging lever in the embodiment shown in Figure 2;
  • Figure 6 is a partial enlarged cross-sectional view of the embodiment shown in Figure 4.
  • Figure 7 is a partial enlarged cross-sectional view of the embodiment shown in Figure 4.
  • Figure 8 is a schematic view of the operation of the embodiment shown in Figure 2.
  • an embodiment of the present invention provides an oscillating transmission bicycle 100 , which mainly includes a bicycle body 10 , a sprocket device 20 , a foot device 30 , and a set of oscillating devices . 40, where:
  • the bicycle body 10 has a frame 11, a handle 12, two wheels 13, and a pad 14; the handle 12 is pivotally connected to the front end of the frame 11.
  • the two wheels 13 are respectively pivoted at the rear end of the frame 11 and the bottom of the handle 12, and can be driven to rotate.
  • a seat cushion 14 is provided on the frame 11 for the user to ride.
  • the toothed disc device 20 is disposed on the frame 11 and can be stressed. And the axis is turned.
  • the sprocket device 20 has a sprocket wheel 22 and a chain 23, and the sprocket wheel 22 is pivotally mounted on the frame 1 1 by a rotating shaft 21, and the sprocket wheel 22 has its axis Nested on the rotating shaft 21, the chain 23 is connected to the toothed disc 22 and the wheel 13 (rear wheel) at the rear end of the frame 1 1 so that when the toothed disc 22 is subjected to the When the rotating shaft 21 is driven, the wheel 13 (rear wheel) can be rotated by the transmission of the chain 23.
  • the footrest device 30 has a pair of cranks 31 and corresponding pedals 32.
  • the pair of cranks 31 are rotatably axially disposed on the frame 1 at one end thereof.
  • the pedal 32 is rotatably locked to the crank 31 for the user to step on.
  • the swinging device 40 has a one-way bearing 50 and a swinging lever 60.
  • the one-way bearing 50 has a central hole 51;
  • the swinging rod 60 has a plurality of socketed telescopic rods, and the telescopic rod defines a first section telescopic rod 61, a last section of the telescopic rod 62 and a plurality of sockets according to the position of the socket.
  • the first section telescopic rod 61 is a hollow circular tube body adjacent to one end
  • the one-way bearing 50 is accommodated, and the central hole 51 of the one-way bearing 50 is in communication with the through hole 61 1 , and the inner circumferential surface of the first section telescopic rod 61 is directed to the shaft.
  • a first convex abutting portion 613 is formed on the inner side of the first convex abutting portion 613, and a first sliding member 614 is provided on the inner circumferential surface of the first convex abutting portion 613.
  • the first sliding member 614 is used in this embodiment.
  • a plurality of steel balls 616 that are only allowed to rotate in place by the steel ball ring 615 and formed on the first convex abutting portion 613 are a steel ball 616 and a steel ball groove 617 accommodated by the steel ball ring 615, wherein the first section telescopic rod 61 is adjacent to the opening end edge of the end of the first sliding member 614 is provided with a dust jacket 64;
  • a telescopic rod 62 has a cylindrical rod body having a radial shaft hole 621 extending through the two sides at a position adjacent to the end, and a bearing 622 is disposed in the radial shaft hole 621.
  • a second convex abutting portion 623 is protruded from the outer peripheral surface of the front end of the telescopic rod 62, and the outer diameter of the second convex abutting portion 623 is larger than the outer diameter of the shaft of the last telescopic rod 62.
  • a second sliding member 624 having a low coefficient of friction is disposed on the outer circumferential surface of the second convex abutting portion 623.
  • the second sliding member 624 is a wear-resistant shield.
  • the wear ring of the middle section; the intermediate section telescopic rod 63 is a tube body of a plurality of different pipe diameters, and a first convex abutting portion is respectively formed on the inner circumferential surface of the end of the intermediate section telescopic rod 63. 631, and a first sliding member 632 is disposed on the first convex abutting portion 631.
  • the first sliding member 632 is a plurality of steel balls 634 which are restricted by the steel ball ring 633 and can only rotate in place, and the steel balls 634 and the steel ball rings 633 which are formed on the first convex abutting portions 631.
  • a detachable steel ball groove 635 wherein the end of the intermediate section telescopic rod 63 is adjacent to the opening end edge of the first sliding member 632, and a dust jacket 64 is disposed.
  • the intermediate section telescopic rod 63 is opposite to the a second convex abutting portion 636 is formed on the outer peripheral annular surface of the first convex abutting portion 631, and the outer diameter of the second convex abutting portion 636 is larger than the outer diameter of the intermediate joint telescopic rod 63.
  • a second sliding member 637 having a low friction coefficient is disposed on the outer peripheral surface of the second convex abutting portion 636.
  • the second sliding member 637 is a wear-resistant material in the embodiment. Made of wear rings.
  • the inner peripheral surface of the former telescopic rod is used for the ring.
  • the first convex abutting portion abuts the second convex abutting portion of the outer peripheral surface of the lower telescopic rod to prevent the telescopic rods from being separated from each other.
  • the intermediate section telescopic rods 63 are sequentially sleeved, and the last section of the telescopic rods 62 is sleeved on the innermost layer of the intermediate section telescopic rods 63, and the A telescopic rod 61 is sleeved on the outermost layer of the intermediate section telescopic rod 63, so that the intermediate section telescopic rod 63 and the last section of the telescopic rod 62 and the first section telescopic rod 61 can be stressed. While axially elongating (as shown in FIG. 4) and retracting (as shown in FIG.
  • the first convex abutting portion 613 of the first section telescopic rod 61 and the second convex abutting portion 636 of the next intermediate joint telescopic rod 63 can be interfered with each other to prevent mutual detachment, and
  • the first sliding member 614 disposed on the first convex abutting portion 613 can reduce the friction between the outer wall of the intermediate section telescopic rod 63 and the inner wall of the first section telescopic rod 61 during the telescopic movement (as shown in the figure).
  • the second convex abutting portion 623 of the last section of the telescopic rod 62 and the first convex abutting portion of the front intermediate section telescopic rod 63 can be utilized.
  • the 631 generates interference interference, and prevents the mutual disengagement from occurring, and by means of the second sliding member 624 provided on the second convex abutting portion 623, the intermediate section telescopic rod can be reduced when the telescopic movement is performed.
  • the friction between the inner wall of 63 and the outer wall of the last section of the telescopic rod 62 makes the smoothness of the telescopic movement better. .
  • the assembled swinging device 40 can be pivoted by the radial shaft hole 621 for the pedal 32 of the foot device 30 to be passed through the bearing 622 to be locked to the crank 31, and then by the first section.
  • the chamber 612 of the telescopic rod 61 is fixedly disposed by the one-way bearing 50, and is supplied to the shaft 21 by the through hole 61 1
  • the oscillating rod 60 and the one-way bearing 50 are limited to the teeth by being inserted into the chamber 612 to be engaged with the one-way bearing 50, and by the locking of the bolt 91 with the rotating shaft 21.
  • the swing lever 60 can be swung up and down between predetermined angles, that is, the crankshaft hole 621 is cranked by the end. 31 is driven up and down to swing the other end (the end of the one-way bearing is provided) to rotate between the predetermined angles in the original direction, and the one-way bearing 50 is driven to rotate in one direction by the one-way bearing 50, and further The operation of driving the pedal wheel 13 (rear wheel) is reached.
  • the swinging lever 60 is capable of extending and retracting, when the crank 31 is turned to the position of the wheel near the front end of the frame 1, the swinging lever 60 is driven to be elongated. When the crank 31 is turned to a position close to the rear wheel of the frame, the swing lever 60 is retracted (as shown in Fig. 8). In this way, when the user rides the bicycle 100, the swinging lever 60 can make a moderate extension and retraction change according to different positions of the crank, and there is no abrupt situation to avoid When the user's foot interferes or collides, it not only increases the comfort and safety during riding, but also increases the overall aesthetic effect.
  • the second sliding member in the above embodiment is a wear ring
  • the first sliding member is a combination of a steel ball, a steel ball ring, and a steel ball groove
  • the second can be actually
  • the sliding member is modified by a combination of a steel ball, a steel ball ring and a steel ball groove, and the first sliding member is changed into a wear ring type, or the first sliding member and the second sliding member are both adopted as
  • the wear ring, or the combination of the first sliding member and the second sliding member, which are made of steel balls, steel ball rings and steel ball grooves, can achieve the effect of reducing friction by any type change mentioned above, The smoothness of the expansion and contraction.
  • the number of sockets of the telescopic rod can be appropriately adjusted according to the size of the frame, and is not a certain amount.
  • the present embodiment is presented in a two-wheel type bicycle, it may actually be a single-wheel, two-wheel or more-wheel-type bicycle type, which also achieves the object of the present invention.
  • the swinging transmission device of the present invention mainly includes the footrest device 30, the swinging device 4 and the rotating shaft 21 in the foregoing embodiment, wherein the footrest device 30 has a pair of cranks 31 and corresponding pedals 32,
  • the swinging device 4 has a one-way bearing 50 and a swinging rod 60.
  • the one-way glaze 50 has a central hole 51 for receiving and fixing the rotating shaft 21, and the swinging rod 60 includes
  • the swinging lever 60 can passively The axial reciprocating motion of the extension and retraction is performed, and the one-way bearing 50 is driven to rotate the shaft 21 in one direction to transmit the power of the foot.
  • the rotating shaft 21 in this embodiment is mainly used as a power output, and the power is transmitted by the toothed disc 22 or other power transmission device.

Landscapes

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

Abstract

L'invention concerne une bicyclette à transmission de type oscillant (100) comprenant un corps de bicyclette (10), un dispositif de plateau de pédalier (20), un arbre de rotation, un dispositif de pédalage (30) et un groupe de dispositifs oscillants(40). Le dispositif oscillant (40) comprend une tige oscillante (60) et une manivelle unidirectionnelle (50) dotée d'un trou central (51). L'arbre de rotation est monté axialement dans le trou central (51) de la manivelle unidirectionnelle (50), et la tige oscillante (60) comporte plusieurs parties de tige télescopique emboîtées. L'extrémité de la dernière partie de la tige télescopique (62) comprend un trou à axe radial de sorte que la tige télescopique peut être mobile entre la pédale (32) et la manivelle (31), l'extrémité avant de la première partie de la tige télescopique (61) étant montée à l'extérieur de la manivelle unidirectionnelle (50). Lorsque le dispositif de pédalage (30) entraîne la tige oscillante (60) à monter et descendre, ladite tige oscillante (60) peut se déployer et se rétracter de manière passive pour produire un mouvement de va-et-vient et entraîner la manivelle unidirectionnelle (50) afin de provoquer une rotation de l'arbre de rotation et ainsi de faire tourner les roues. Le mécanisme de transmission de type oscillant télescopique pour bicyclette permet d'améliorer le confort et la sécurité de roulement.
PCT/CN2009/000425 2009-04-21 2009-04-21 Bicyclette à transmission de type oscillant et mécanisme de transmission du type oscillant WO2010121394A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2009/000425 WO2010121394A1 (fr) 2009-04-21 2009-04-21 Bicyclette à transmission de type oscillant et mécanisme de transmission du type oscillant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2009/000425 WO2010121394A1 (fr) 2009-04-21 2009-04-21 Bicyclette à transmission de type oscillant et mécanisme de transmission du type oscillant

Publications (1)

Publication Number Publication Date
WO2010121394A1 true WO2010121394A1 (fr) 2010-10-28

Family

ID=43010648

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2009/000425 WO2010121394A1 (fr) 2009-04-21 2009-04-21 Bicyclette à transmission de type oscillant et mécanisme de transmission du type oscillant

Country Status (1)

Country Link
WO (1) WO2010121394A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PT107242A (pt) * 2013-10-18 2014-05-05 José Manuel Ferreira Marinho Dispositivo para bicicletas ou outros veículos acionados por pedais ou manípulos
FR3033310A1 (fr) * 2015-03-04 2016-09-09 Jean-Francois Cailler Entrainement pour bicyclette
US9555853B2 (en) 2013-01-30 2017-01-31 Paul Sprague Propulsion system for human powered vehicles
US9688349B2 (en) * 2013-06-06 2017-06-27 Robert William Thompson Bicycle transmission
CN110282064A (zh) * 2019-07-26 2019-09-27 张新金 一种省力自行车
CN110843992A (zh) * 2019-12-16 2020-02-28 张新金 一种省力自行车

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2066839U (zh) * 1989-10-25 1990-12-05 李湘权 脚踏车可伸缩曲柄及脚蹬装置
JPH0487893A (ja) * 1990-07-31 1992-03-19 Yutaka Komuro 自転車の駆動装置
CN2254867Y (zh) * 1996-04-29 1997-05-28 王兆禄 骑行中脚蹬曲柄长度变化的自行车
FR2767174A1 (fr) * 1997-08-05 1999-02-12 Alexandre Martenne Dispositif de transformation de deux mouvements alternatifs en mouvement de rotation
CN200971146Y (zh) * 2006-10-09 2007-11-07 和轮有限公司 自行车的踩踏装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2066839U (zh) * 1989-10-25 1990-12-05 李湘权 脚踏车可伸缩曲柄及脚蹬装置
JPH0487893A (ja) * 1990-07-31 1992-03-19 Yutaka Komuro 自転車の駆動装置
CN2254867Y (zh) * 1996-04-29 1997-05-28 王兆禄 骑行中脚蹬曲柄长度变化的自行车
FR2767174A1 (fr) * 1997-08-05 1999-02-12 Alexandre Martenne Dispositif de transformation de deux mouvements alternatifs en mouvement de rotation
CN200971146Y (zh) * 2006-10-09 2007-11-07 和轮有限公司 自行车的踩踏装置

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9555853B2 (en) 2013-01-30 2017-01-31 Paul Sprague Propulsion system for human powered vehicles
US9688349B2 (en) * 2013-06-06 2017-06-27 Robert William Thompson Bicycle transmission
PT107242A (pt) * 2013-10-18 2014-05-05 José Manuel Ferreira Marinho Dispositivo para bicicletas ou outros veículos acionados por pedais ou manípulos
PT107242B (pt) * 2013-10-18 2014-08-01 José Manuel Ferreira Marinho Dispositivo para bicicletas ou outros veículos acionados por pedais ou manípulos
FR3033310A1 (fr) * 2015-03-04 2016-09-09 Jean-Francois Cailler Entrainement pour bicyclette
CN110282064A (zh) * 2019-07-26 2019-09-27 张新金 一种省力自行车
CN110843992A (zh) * 2019-12-16 2020-02-28 张新金 一种省力自行车

Similar Documents

Publication Publication Date Title
WO2010121394A1 (fr) Bicyclette à transmission de type oscillant et mécanisme de transmission du type oscillant
US7111860B1 (en) Treadle scooter
EP2389309B1 (fr) Trottinette propulsée par balancier
US5037120A (en) Wheelchair manual drive mechanism
AU2010289491A1 (en) Pedal-drive system for manually propelling multi-wheeled cycles
WO2005037382A2 (fr) Velo d'exercice multifonctions
TWM586233U (zh) 助動車的踏力傳感裝置
JP3101174U (ja) 自転車
WO2014081366A1 (fr) Véhicule doté d'un dispositif d'entraînement qui se met en marche lorsque l'opérateur s'assoie
KR200414309Y1 (ko) 개선된 다기능 페달 운동 자전거
WO2009127124A1 (fr) Bicyclette comprenant un système d'actionnement pour l'entraînement de l'embrayage
TWI356788B (fr)
KR101583529B1 (ko) 지압기능을 갖는 손 지압기 및 이를 이용한 자동차 핸들
TWI691430B (zh) 旋轉傳遞機構、及具備旋轉傳遞機構的自行車
WO2022007393A1 (fr) Bicyclette
US6283486B1 (en) Engaging and disengaging gear for a bicycle pedal crank axle
KR100763307B1 (ko) 자전거 겸용 킥보드
KR20130010640A (ko) 자전거용 클러치 및 이를 포함하는 유아용 자전거
EP2055623A1 (fr) Tricycle bimode
KR101668524B1 (ko) 접이식 자전거용 크랭크 아암
KR200277359Y1 (ko) 핸들조작에 의한 동력전달이 가능한 자전거
JP2004001618A (ja) 小型車両用パワーユニット
TWI835390B (zh) 自行車之馬達傳動裝置
KR20120119811A (ko) 원호형 내치차 프레임으로 후륜을 구동하는 자전거
JP2004010037A (ja) 駆動輪

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09843499

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 09843499

Country of ref document: EP

Kind code of ref document: A1