WO2000030924A1 - Dispositif d'entrainement de pedale de bicyclette reglable - Google Patents

Dispositif d'entrainement de pedale de bicyclette reglable Download PDF

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Publication number
WO2000030924A1
WO2000030924A1 PCT/KR1999/000701 KR9900701W WO0030924A1 WO 2000030924 A1 WO2000030924 A1 WO 2000030924A1 KR 9900701 W KR9900701 W KR 9900701W WO 0030924 A1 WO0030924 A1 WO 0030924A1
Authority
WO
WIPO (PCT)
Prior art keywords
coupled
shaft
pedal
driving
rotary
Prior art date
Application number
PCT/KR1999/000701
Other languages
English (en)
Inventor
Byung-Nam Kang
Jong-Suk Kim
Hye-Jong Park
Original Assignee
Kang Byung Nam
Kim Jong Suk
Park Hye Jong
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 Kang Byung Nam, Kim Jong Suk, Park Hye Jong filed Critical Kang Byung Nam
Priority to AU11880/00A priority Critical patent/AU1188000A/en
Publication of WO2000030924A1 publication Critical patent/WO2000030924A1/fr

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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
    • B62M3/00—Construction of cranks operated by hand or foot
    • B62M3/02—Construction of cranks operated by hand or foot of adjustable length
    • 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
    • B62M3/00—Construction of cranks operated by hand or foot
    • B62M3/02—Construction of cranks operated by hand or foot of adjustable length
    • B62M3/04—Construction of cranks operated by hand or foot of adjustable length automatically adjusting

Definitions

  • the present invention relates to a bicycle, and more particularly, to an adjustable pedal driving device of bicycle which can extend, upon running, a distance between a pedal shaft of a chain sprocket, which transmits a rotating force of pedals to a rear wheel, and pedals, to thereby obtain a maximum running energy at the expense of a minimum driving energy consumption.
  • an existing bicycle has been designed to have a fixed crankshaft distance between a pedal shaft and a pedal and therefore, its running force depends only upon a driving force of the pedals assembled with the crankshaft.
  • the driving structure(running force providing structure) of the bicycle since the rotating force of the pedals is exerted within a predetermined rotary radius, the bicycle should need lots of driving energy upon running on upward climbing road.
  • a change gear is newly installed to optimize the running force of the bicycle.
  • An object of the present invention is to provide an adjustable pedal driving device of a bicycle which can extend a rotary radius of pedals from a pedal shaft, upon running, thus to obtain an optimum driving energy at the expense of minimum driving energy consumption, whereby when the bicycle runs upward climbing road or a long * distance, it provides a minimum fatigue to a user.
  • an adjustable pedal driving device of a bicycle includes: a frame in which a chain sprocket on the inside of both flanges thereof is shaft-coupled on a pedal shaft; a rotary body rotary-coupled as a unitary body with the flanges; a rotary disc rotary-coupled as a unitary body with the rotary body and eccentric shaft-coupled with the pedal shaft; first and second guide pipes sliding-coupled on first and second operation bars coupled on the both ends of the pedal shaft and fixed by means of a shaft pin on the rotary body to thereby adjust the distance between the pedal shaft and pedals upon the rotary driving of the pedal shaft for running; and an adjusting part installed between the rotary disc and the frame, for fixing the rotary disc on the frame and adjusting the rotary disc at an arbitrary angle, centering around the pedal shaft.
  • FIG. 1 is a side view illustrating the main parts of an adjustable pedal driving device constructed according to a first embodiment of the present invention
  • FIG. 2 is a sectional view illustrating main parts of FIG. 1 ;
  • FIG. 3 is a side view illustrating operation states of FIG. 1 ;
  • FIG. 4 is a side view of the part of the main parts of FIG. 3;
  • FIG. 5 is a sectional view of the part of the main parts of
  • FIG.1 is a diagrammatic representation of FIG. 1 ;
  • FIG. 6 is a sectional view illustrating the main parts of an adjustable pedal driving device constructed according to a second embodiment of the present invention
  • FIG. 7 is a side view illustrating operation states of FIG. 6;
  • FIG. 8 is a separated perspective view of the part of the main parts of FIG. 6;
  • FIG. 9 is a sectional view illustrating the main parts of an adjustable pedal driving device constructed according to a third embodiment of the present invention.
  • FIG. 10 is a separated perspective view illustrating the maih parts of an adjustable pedal driving device constructed according to a fourth embodiment of the present invention.
  • FIG. 1 1 is a sectional view illustrating an assembling state of FIG. 10;
  • FIGS. 12A and 12B are side views illustrating use states of FIG.10;
  • FIG. 13 is a sectional view illustrating the oil pressure controller of FIG. 10;
  • FIG. 14 shows another embodiment of FIG. 5;
  • FIGS. 15 to 22 show various embodiments of a pedal angle adjusting part of the present invention
  • FIG. 23 is a diagrammatic representation of FIG. 23.
  • FIG. 25 is a side view illustrating operation states of FIG. 23;
  • FIG. 26 shows another embodiment of FIG. 23;
  • FIG. 27 is a side view illustrating operation states of FIG. 26;
  • FIG. 28 is a separated perspective view illustrating yet another embodiment of the pedal driving part of the present invention.
  • FIG. 29 is a sectional view illustrating an assembling state of FIG. 28;
  • FIG. 30 is a side view illustrating operation states of FIG. 28;
  • FIG. 31 is a sectional view illustrating still another embodiment of the pedal driving part of the present invention.
  • FIG. 32 is a separated perspective view illustrating the main parts of FIG. 31 ;
  • FIG. 33 is a side view illustrating operation states of FIG. 31 ;
  • FIG. 34 is a sectional view illustrating yet another embodiment of the pedal driving part of the present invention.
  • FIG. 35 is a sectional view illustrating an assembling state of FIG. 34;
  • FIG. 36 is a separated perspective view illustrating the main parts of FIG. 34;
  • FIG. 37 is a side view illustrating operation states of FIG. 34;
  • FIG. 38 shows an embodiment transformed in FIG. 34
  • FIG. 39 is a sectional view illustrating the part of main parts of FIG. 34;
  • FIG. 40 is a top view illustrating another embodiment of the part of FIGS. 28 and 31 ;
  • FIG. 41 is a side sectional view of FIG. 40.
  • FIG. 42 shows an operation state of FIG. 40.
  • FIG. 1 is a side view illustrating the main parts of an adjustable pedal driving device constructed according to a first embodiment of the present invention
  • FIG. 2 is a sectional view illustrating main parts of FIG. 1
  • FIG. 3 is a side view illustrating operation states of FIG. 1
  • FIG. 4 is a side view of the part of the main parts of FIG. 3
  • FIG. 5 is a sectional view of the part of the main parts of FIG.1 .
  • the present invention is characterized in that a chain sprocket 4, which is shaft-installed on a pedal shaft 3 on which pedals 7 and 7' are coupled and is connected via a chain with a rear wheel to thereby change the rotating force of the pedals 7 and 7' to a running energy, is installed in the inside of a frame 1 , and the pedals 7 and 7' for driving the chain sprocket 4 is installed to be adjusted from the pedal shaft 3, upon running.
  • a frame 1 mounts a pedal driving part including the pedals 7 and 7', the pedal shaft 3, and the chain sprocket 4, on the both flanges 2 and 2' thereof.
  • the chain sprocket 4 which is shaft-coupled with the pedal shaft 3 is installed in the inside of the both flanges 2 and 2', and the pedals 7 and 7' are coupled on the outside of the both flanges 2 and 2 1 of the pedal shaft 3.
  • a ring type of rotary body 1 1 is rotary-coupled on the both flanges 2 and 2 1 , respectively, by means of a ball bearing 12, and a rotary disc 9 is rotary-coupled on the inside of the rotary body 1 1 , by means of a ball bearing 10.
  • the pedal shaft 3 is shaft-coupled on the rotary disc 9 to be eccentric to the one side thereof.
  • the chain sprocket 4 is installed on the pedal shaft 3 in the inside of the both flanges 2 and 2', variable crankshaft 8 and 8' are coupled on the pedal shaft 3 on the outside of the frame 1 , and the pedals 7 and 7' are coupled on the front ends of the variable crankshaft 8 and 8' .
  • crankshaft 8 and 8' coupled on the pedal shaft 3 and for adjusting the distance between the pedals 7 and 7' and the pedal shaft 3 will be given.
  • Driving bars 5 and 5' are coupled opposite to each other on the both sides of the pedal shaft 3, and the front sides of the driving bars 5 and 5' are slidingly inserted into guide pipes 6 and 6' which are fixed by a shaft pin 6a on the rotary body 1 1 to adjust the distance between the pedal shaft 3 and the shaft pin 6a, such that the front sides of the driving bars 5 and 5' are piston-operated within the guide pipes 6 and 6' to adjust the distance between the pedals 7 and 7' coupled on the front sides of the guide pipes 6 and 6' and the pedal shaft 3.
  • An adjusting part 13 which is adapted to fix the rotary disc 9 on the frame 1 and to adjust the angle between the pedal shaft 3 and the pedals 7 and 7' to extend at a maximum extent the distance therebetween upon running, is installed on at least one rotary disc 9 on the both flanges 2 and 2', respectively.
  • the adjusting part 13 includes an adjusting bracket 14 fixed on the inside of the rotary disc 9 and an worm gear 15 installed on the adjusting bracket 14.
  • the worm gear 15 is tooth-coupled with a worm 16 connected via bevel gears 17 and 17' with an adjusting knob 18 of the frame 1 and if the adjusting knob 18 is turned, the rotating force is transmitted in order of the bevel gears 17 and 17', the worm 16, and the worm gear 15 to thereby angle-move the adjusting bracket 14, such that the rotary disc 9 is rotated centering around the pedal shaft 3 to adjust the angle between the pedal shaft 3 and the pedals 7 and 7'.
  • the front sides of the driving bars 5 and 5 of the pedal shaft 3 are sliding-coupled with the interiors of the guide pipes 6 and 6' and piston-operated.
  • a slider 20, which is associated with a plurality of ball bearings 21 is installed on the inside of the guide pipes 6 and 6'.
  • the front sides of the driving bars 5 and 5' are inserted into the slider 20, and the driving bars 5 and 5' are piston-operated, together with the slider 20 to thereby minimize the friction force between the driving bars 5 and 5' and the guide pipes 6 and 6'.
  • a lubricating oil is injected into the inside of the guide pipes 6 and 6' and a sealing cap 22 and a seal 23 are adapted to close the both ends of the guide pipes 6 and 6' , thereby preventing the accumulation of the foreign materials therein and minimizing the friction force between the driving bars 5 and 5' and the guide pipes 6 and 6'.
  • FIG. 14 shows another embodiment of FIG. 5, in which the driving bars 5 and 5' form a face attached portion 5a on the both sides or the one side thereof, with which a slider 20a having the matched shape with the face attached portion 5a is coupled.
  • a fixing slider 20b is inserted and coupled on the slider 20a on the face attached portion 5a of the driving bars 5 and 5' and is thus associated into the guide pipes 6 and 6'.
  • the fixing slider 20b is fixedly coupled with the guide pipes 6 and 6' by means of a fixing means 20c from the outside of the guide pipes 6 and 6'.
  • FIGS. 6 to 8 show various embodiments of the adjusting part
  • an adjusting bracket 14a is coupled or formed as a unitary body with the inside of the rotary disc 9 on which the pedal shaft 3 is eccentrically installed, and a fixed hole 24 on which a fixing means 25 such as a fixing bolt is coupled is formed on the adjusting bracket 14a.
  • a plurality of adjusting holes 26 and 26' having various angles, which correspond to the fixed hole 24, are formed on the frame 1 .
  • 26 and 26' are formed opposite to each other on the both sides of the rotary disc 9, as shown in FIG. 7, or may be formed on the one side thereof.
  • FIG. 9 is a sectional view illustrating the main parts of an adjustable pedal driving device constructed according to a third embodiment of the present invention.
  • the rotary disc 9 of the first and second embodiments is removed to reduce the weight of the bicycle.
  • the pedal shaft 3 is coupled on an auxiliary frame 27 fixed on the both insides of the frame 1 , and the chain sprocket 4 is shaft-installed on the pedal shaft 3. ,
  • the auxiliary frame 27 shaft-coupled with the pedal shaft 3 is formed on the both sides of the chain sprocket 4 as shown in FIG. 9, or may be formed on the one side thereof.
  • FIG. 10 is a separated perspective view illustrating the main parts of an adjustable pedal driving device constructed according to a fourth embodiment of the present invention
  • FIG. 11 is a sectional view illustrating an assembling state of FIG. 10,
  • FIG. 12B are side views illustrating use states of FIG.10.
  • an assembling hole 29 is formed on a frame 28 and is rotary-coupled with a rotary member 30 by means of a bearing 32.
  • the rotary member 30 includes a shaft hole 31 which is formed eccentrically thereon.
  • the shaft hole 31 is formed eccentrically on the rotary member 30 rotary-coupled on the assembling hole 29 of the frame 28, into which the pedal shaft 3 is installed.
  • the rotary body 1 1 which is rotary-coupled with the ball bearing 10, is coupled on the both sides of the assembling hole 29 of the frame 28.
  • the guide pipes 6 and 6' of the pedals 7 and 7' into which the driving bars 5 and 5' are sliding-coupled are coupled on the rotary body 1 1 by means of the shaft pin 6a.
  • the shaft pin 6a of the guide pipes 6 and 6' is installed to be passed through a longitudinal hole 4a of the chain sprocket 4, as shown in FIG. 2B.
  • the adjusting part 13 of the fourth embodiment of the present invention is formed in such a manner that the rotary member 30 is connected with a piston 35 of an oil hydraulic cylinder 34 at the one side thereof through the longitudinal hole 33 formed on the one side of the frame 28 and the rotary member 30 which is coupled on the assembling hole 29 of the frame 28 is rotated according to the operation of the piston 35 to thereby adjust the shaft hole 31 at an arbitrary angle, such that the distance between the pedal shaft 3 and the pedals 7 and 7' can be adjusted at the maximum adjustable angle.
  • the oi! hydraulic cylinder 34 is connected with a control part 36 from/to which the oil pressure flows through oil passages A and B on the both sides of the control part 36, to thereby operate the piston 35.
  • the control part 36 includes a valve plate 38 which is adapted to selectively open/close the oil passages A and B under the manipulation of a handle 40 to thereby supply or block the oil pressure within an oil hydraulic chamber 39 within a valve body 37. Under the manipulation of the handle 40, the valve plate 38 operates to selectively open/close the oil passages A and B, thereby operating the piston 35.
  • the control part 36 which is adapted to operate the piston 35 of the oil hydraulic cylinder 34, may be embodied with general various components, inclusive of the embodiment constructed in FIG. 13.
  • FIGS. 15 to 22 show various embodiments of a pedal angle adjusting part of the present invention.
  • a pedal angle adjusting part 41 is adapted to move the pedal shaft 3 to the front or rear wheel of the bicycle and to adjust the angle between the pedal shaft 3 and the shaft pin 6a of the guide pipes 6 and 6' to thereby adjust the angle between the pedal shaft 3 and the pedals 7 and 7'.
  • the pedals 7 and 7' on the pedal shaft 3 are operated smoothly on the plain road, but in the state where the pedals 7 and 7' are pedalled downwardly on the upwardly inclined climbing road, they to which a running force is applied is inclined backwardly centering around a vertical state because of the * advancing angle of the upward inclination which the bicycle on the upward climbing road has, thereby needing a large amount of additional running force applied thereto, which of course results in the increment of the running energy.
  • the installation of the pedal angle adjusting part 41 makes the angle of the pedals 7 and 7' inclined forwardly on the upward climbing road.
  • FIG. 15 shows an embodiment of the pedal angle adjusting part 14, in which an arm 42 on which a shaft hole 43 coupled with the pedal shaft 3 is formed is installed on the frame 1 by means of a shaft pin 44 on the one end thereof and is thus angle-moved on the frame 1 .
  • the arm 42 is connected with a piston 47 of the oil hydraulic cylinder 46 by means of a hinge pin 45 on the one side thereof and under the operation of the piston 47, is angle-moved centering around the shaft pin 44, thus to move the pedal shaft 3 to the front and rear wheel sides, such that the angle adjustment of the pedals 7 and 7' from the pedal shaft 3 can be executed.
  • the oil hydraulic cylinder 46 is installed on the frame 1 by means of a hinge pin 48 on the one end thereof and is angle-moved on the frame 1 under the operation of the piston 47 connected via the hinge pin 45 with the arm 42.
  • a controlling part for the oil hydraulic cylinder 46 is embodied with the control part 36 as discussed above or may be embodied with other parts.
  • FIGS. 16 and 17 show another embodiments of the pedal angle adjusting part 41 , in which the arm 42 couples the hinge pin 49 on the one side thereof with a screw pipe 49 which is screw-coupled with a screw bar 51 on the one end of a rotary bar 50.
  • the rotary bar 50 screw-couples the screw bar 51 on the front side thereof with the screw pipe 49 and is assembled and freely rotated on an operation lever 52 which is angle-movable through the hinge pin 53 on the frame 1 , by means of a bearing 54.
  • the one end of the rotary bar 50 is fixed by means of a fixing cap 55 on the operation lever 52, thereby preventing the deviation of the rotary bar 50 from the operation lever 52, during rotation.
  • An adjusting wire 56 is wound on the one end of the rotary bar 50, and as the adjusting wire 56 is rotated forwardly or backwardly, the rotary bar 50 is rotated to insert/draw the screw bar 51 into/from the screw pipe 49 of the arm 42.
  • the arm 42 is angle-moved to move the pedal shaft 3 to the front and rear wheel sides, such that the angle adjustment of the pedals 7 and 7' from the pedal shaft 3 can be executed.
  • the adjusting wire 56 is passed through the rotary bar 50 and then fixed thereon by means of a fixing bolt 57. Next, the adjusting wire 56 is wound several times on the peripheral surface of the rotary bar 50 and then wound on an adjusting handle 58, as shown in FIG. 18, installed on an appropriate position on the frame 1 , thereby connecting the rotary bar 50 and the adjusting handle 58. As the adjusting handle 58 is rotated forwardly or backwardly, the adjusting wire 56 connected to the adjusting handle 58 is rolled or unrolled in any one direction. Therefore, since the adjusting wire 56 is rolled and unrolled on the rotary bar 50, the rotary bar 50 is rotated forwardly or backwardly to thereby screw-assemble and dissemble the screw bar 51 with/from the screw pipe 49.
  • the adjusting handle 58 is rotated forwardly or backwardly by means of an adjusting knob 60 centering around a central shaft pin 59 and fixes the both ends of the adjusting wire 56 wound on a circular wire winding portion 61 by means of a long fastening bolt 62, at the one side of the wire winding portion 61.
  • FIGS. 19 to 21 show yet another embodiments of the pedal angle adjusting part 41 , in which an adjusting pipe 65 is sliding-coupled on the frame 64 on which a slide hole 63 is formed in a length direction thereof and a shaft hole 66 is formed on the adjusting pipe 65 in a cross direction against the slide hole 63, with which the pedal shaft 3 is shaft-coupled.
  • Internal and external splines 67 and 67' are formed on the slide hole 63 of the frame 64 and the adjusting pipe 65, respectively, and are coupled to each other, thereby preventing the rotation of the adjusting pipe 65 on the slide hole 63.
  • the adjusting pipe 65 forms a screw hole 68 therein, into which a screw bar 69 is screw-coupled.
  • the screw bar 69 is coupled with a rotary wheel 70, which is connected with the adjusting handle 58 by means of an adjusting wire 56a.
  • the screw bar 69 is rotatably supported by means of a bearing 72 on a fixed bracket 71 which is fixed on the one side of the slide hole 63.
  • the rotary wheel 70 on which the adjusting wire 56a is wound, and the center portion of the wound wire is fixed on the rotary wheel 70. Then, the adjusting wire 56a pulls in any one direction by the operation of the adjusting handle 58, and the screw bar 69 connected to the rotary wheel 70 rotates forwardly or backwardly, thereby to move the adjusting pipe 65 which is screw-coupled with the screw bar 69 forwardly or backwardly.
  • the pedal shaft 3 is moved to the front and rear wheel, such that the angle adjustment of the pedals 7 and 7' from the pedal shaft 3 can be executed.
  • the shaft hole 66 of the guide pipe 65 is rotatably supported onto the pedal shaft 3 by means of the bearing 67 and is fixedly coupled by means of a fixing cap 68 with the pedal shaft 3.
  • FIG. 22 shows another embodiment of the pedal angle adjusting part 41 , in which the screw bar 51 on the one side of the rotary bar 50 for angle-moving the arm 42 is screw-coupled with the screw hole 68 of the guide pipe 65, and the operation lever 52 on which the rotary bar 50 is associated is fixed by means of the hinge pin 53 on the frame 64 to thereby rotate the screw bar 51 as unified with the rotary bar 50 under the operation of the rotary bar 50.
  • the rotation of the screw bar 51 moves the guide pipe 65 forwardly or backwardly, and the pedal shaft 3 is moved to the front and reaf wheel, such that the angle adjustment of the pedals 7 and 7' from the pedal shaft 3 can be executed.
  • FIG. 23 is a separated perspective view illustrating another embodiment of a pedal driving part of the present invention
  • FIG. 24 is a sectional view illustrating an assembling state of FIG. 23
  • FIG. 25 is a side view illustrating operation states of FIG. 23.
  • the distance of the pedals 7 and 7' from the pedal shaft 3 is extendably adjusted to thereby obtain a maximum running energy at the expense of a minimum driving energy.
  • a fixing gear 74 is coupled with a shaft hole 73 of the frame 1 into which the pedal shaft 3 is inserted, and a driving case 79 is assembled on the outside of the shaft hole 73.
  • a planetary gear 80 shaft-installed on the driving case 79 is tooth-coupled with the fixing gear 74, and thus a connect arm 81 connected to the planetary gear 80 is extruded from a driving case 77, such that the distance between the pedals 7 and 7' connected to the end of the connect arm 81 and the pedal shaft 3 can be adjusted.
  • the fixing gear 74 is formed as a unitary body with a fixing body 75 and is fixedly coupled with the shaft hole 73 of the frame 1 by means of a screw coupling means.
  • An assembling hole 76 into which the pedal shaft is shaft-installed is formed.
  • the driving case 77 forms a coupling hole 78 into which the pedal shaft 3 is coupled through the assembling hole 76 of the fixing gear 74, and forms an opening portion 79 on the one side thereof, through which the part of the fixing gear 74 coupled with the frame 1 is exposed to the inside of the driving case 77 to thereby be tooth-engaged with the planetary gear 80 which is shaft-installed to be freely rotated within the driving case 77.
  • the planetary gear 80 forms an eccentric pin 82, to which the connect arm 81 is associated, and the connect arm 81 forms a guide hole 83 on the front side thereof to be coupled with the eccentric pin 82 of the planetary gear 80.
  • the eccentric pin 82 of the planetary gear 80 is constructed to be in the same angle as the driving case 77 against the pedal shaft 3, as shown in FIG. 25, and in the case where the driving case 77 is disposed horizontally in the advancing direction from the pedal shaft 3, the planetary gear 80 is tooth-coupled with the fixing gear 74 at the forward and horizontal position.
  • the eccentric pin 82 of the planetary gear 80 is disposed in the same direction as the planetary gear 80 and thus, the connect arm 81 having the guide hole 83 coupled with the eccentric pin 82 is protruded at the maximum extent from the driving case 77. At this time, the pedals 7 and 7' can be extended up to the maximum length from the pedal shaft 3.
  • FIG. 26 shows another embodiment of FIG. 23, and FIG. 27 is a side view illustrating operation states of FIG. 26.
  • the pedals 7 and 7' are shaft-coupled on the fixing gear 74 of the driving case 77, and the connect arm 81 , which has the guide hole 83 connected to the eccentric pin 82 of the planetary gear 80, forms a shaft hole 81 a on the end thereof.
  • the pedals 7 and 7' are coupled through the shaft hole 81 a.
  • the construction in FIG. 26 is made in a reverse order in FIGS. 23 to 25.
  • the pedals 7 and 7' are coupled on the fixing gear 74 of the driving case 77, and the pedal 3 is coupled on the end of the connect arm 81 connected to the planetary gear 80.
  • the connect arm 81 is rotated centering around the pedal shaft 3 to thereby rotate the planetary gear 80 eccentrically coupled by means of the eccentric pin 82 on the guide hole 83.
  • the fixing gear 74 which is tooth-coupled with the planetary gear 80 is rotated, and the driving case 77 is moved forwardly or backwardly from the connect arm 81 , such that the distance between the pedals 7 and 7' connected to the fixing gear 74 and the pedal shaft 3 connected to the connect arm 81 can be adjusted.
  • FIG. 28 is a separated perspective view illustrating yet another embodiment of the pedal driving part of the present invention
  • FIG. 29 is a sectional view illustrating an assembling state of FIG. 28
  • FIG. 30 is a side view illustrating operation states of FIG. 28.
  • the fixing body 75 which is fixedly coupled on the shaft hole 73 of the frame 1 , forms an eccentric shaft hole 85, into which the pedal shaft 3 is coupled by means of a bearing 19, and an eccentric shaft 86 is eccentrically installed to be freely rotatable on the one side of the eccentric shaft hole 85.
  • the fixing body 75 is inserted into the inside of the driving case 77.
  • the driving case 77 is formed as a unitary body with an internal gear 87 in such a manner that the internal gear 87 is tooth-coupled with a planetary gear 88 of the end of the pedal shaft
  • the internal gear 87 has a larger tooth ratio than the planetary gear 88, such that the planetary gear 88 is inner-contacted with the internal gear 87 and is eccentrically rotated.
  • the eccentric shaft 86 of the fixing body 75 is connected through a connect link 89 with a driving bar 90 on which the pedals 7 and 7' are coupled, and the driving bar 90 is extruded from the driving case 77.
  • FIG. 31 is a sectional view illustrating still another embodiment of the pedal driving part of the present invention
  • FIG. 32 is a separated perspective view illustrating the main parts of FIG. 31
  • FIG. 33 is a side view illustrating operation states of FIG.
  • a fixing gear 91 is formed as a unitary body with the fixing body 75 which is fixedly coupled with the shaft hole 73 of the frame 1 , and the pedal shaft 3 is fixedly coupled via the assembling hole 76 of the fixing body 75 with the driving case 77 through the coupling hole 78 of the driving case 77.
  • the pedal shaft 3 is coupled by means of a fixing screw shaft
  • the pedal shaft 3 is screw-coupled by means of a screw coupling portion 93 on the one side of the fixing screw shaft 92, and the fixing screw 91 is rotatably coupled with an idle gear 94 by means of a bearing 93 on the shaft portion 93 of the other side of the fixing screw shaft 92.
  • a guide gear 95 is adapted to tooth-couple the fixing gear 91 and the idle gear 94 in a freely rotatable state on the driving case 77.
  • the guide gear 95 is shaft-installed to be freely rotatable on the driving case 77 and forms a tooth on the both sides thereof, with which the fixing gear 91 secured on the frame 1 and the idle gear 94 coupled on the driving case 77 are connected to each other.
  • the idle gear 94 forms an eccentric shaft 96 on which a driving bar 90 coupled with the pedals 7 and 7' is connected through the connect link 89, and if the driving case 77 is rotated due to the working of the pedals 7 and 7', the driving bar 90 is extruded from the driving case 77, such that the distance of the pedals 7 and 7' from the pedal shaft 3 can be adjusted.
  • the guide gear 95 is guided to the fixing gear 74 of the frame 1 and is in a rotary state in the same direction thereof.
  • the idle gear 94 connected to the other side of the guide gear 95 is rotated in the reverse direction to the guide gear 95(the driving case 77), such that the eccentric shaft 96 is always in the same position.
  • the pedal shaft 3 is rotated centering around the eccentric shaft 96 of the idle gear 3, so the distance of the pedals 7 and 7' from the pedal shaft 3 can be adjusted to the maximum extent.
  • the pedals 7 and 7' can be extended to the maximum extent in the state where the angle of the driving case 77 is disposed horizontally in the advancing direction thereof, but may be extended in the state where the driving case 77 is disposed in any direction thereof.
  • FIG. 34 is a sectional view illustrating yet another embodiment of the pedal driving part of the present invention
  • FIG. 35 is a sectional view illustrating an assembling state of FIG. 34.
  • an assembling pipe 105 is inserted into the shaft hole 73 on the frame 1 , and a fixing gear 106 is coupled by means of a screw coupling portion 107 on the both sides of the assembling pipe 105, such that a pedal shaft 3a is shaft-coupled with the inside of the assembling pipe 105.
  • a driving case 108 is coupled on the outsides of the fixing gear 106 on the both sides of the assembling pipe 105, respectively, and the both ends of the pedal shaft 3a are fixedly coupled by means of a fixing bolt 109.
  • the fixing gear 106 on the both ends of the assembling pipe 105 is tooth-coupled with a planetary gear 1 10 which is installed to be freely rotated by means of a bearing 1 1 1 on the one side(the rear side in the advancing direction) of the driving case 108, and a connect link 1 12 is connected to be freely rotated to a shaft portion 1 10a of the planetary gear 1 10.
  • connect link 1 12 is connected to a connect arm 1 14 of a driving bar 1 13, which is sliding-coupled on the inside of the driving case 108, and an installation member 1 15, which is adapted to fix the chain sprocket 4, is coupled on the one side of the driving case 108.
  • the driving bar 1 13 which is sliding-coupled on the inside of the driving case 108 takes an angled face such as a rough diamond shape to thereby ensure an excellent expansion strength.
  • the driving bar 1 13 is coupled by means of a '>'-shaped bearing 1 16 on the both edges thereof on the inside of the driving case 108, as shown in FIG. 39, to be smoothly slided.
  • the tooth ratio of the fixing gear 106 of the assembling pipe is coupled by means of a '>'-shaped bearing 1 16 on the both edges thereof on the inside of the driving case 108, as shown in FIG. 39, to be smoothly slided.
  • the planetary gear 1 10 which is tooth-coupled with the fixing gear 106 is rotated at one time centering around the fixing gear 106, and the pedals 7 and 7' which are slid forwardly or backwardly to/from the driving case 108 are rotated in a long oval shape.
  • the assembling pipe 105 is applied to the existing bicycle, without any separate transformation in the frame 1.
  • the screw assembling portion 105a 1 is formed on the both ends of the assembling pipe 105, and the one side of the screw assembling portion 105a is screw-coupled with the shaft hole 72 and the other side thereof is coupled with a tightening nut 105, such that the assembling pipe 105 can be rigidly coupled with the shaft hole 73 of the frame 1.
  • a screw coupling portion 105c is formed on the both sides of the pedal shaft 3a inserted into the assembling pipe 105 and is screw-coupled with a ball bearing housing 100d, such that the pedal shaft 3a is rotatably supported on the inside of the assembling pipe 105 and the fixing gear 106 is screw-coupled on the both sides o°f the assembling pipe 105.
  • FIGS. 40 to 42 show another embodiment of the driving bar 90, as shown in FIGS. 28 and 31 , on which the connect link 89 and the pedals 7 and 7' are coupled.
  • the distance of the pedals 7 and 7' coupled on the end of the driving bar 90 from the pedal shaft 3 can be extended variably.
  • a guide hole 100 is formed on a connect link 97, into which a rotary gear 102 fixed by means of a shaft pin 101 within the driving case 99 is coupled.
  • the guide hole 100 forms a guide gear 103 on the one side(top side) thereof which is tooth-coupled with a small gear 102a of the rotary gear 102, and the driving bar 98 forms a guide gear 104 which is tooth-coupled with a large gear 102b of the rotary gear 102.
  • the pedal shaft 3 rotates by the rotation of the driving case 99 in each embodiment(FIGS.
  • the connect link 97 which is connected to the fixing body 75 and the idle gear 94 performs a reciprocating movement, and the driving bar 98 connected to the rotary gear 102 is variably extruded from the driving case 99, such that the distance of the pedals 7 and 7' from the pedal shaft 3 can be extended variably.
  • a reference numeral '19' denotes a bearing and a reference numeral ' 105' a cover of the driving case 77.
  • the distance between the pedal shaft 3 which is eccentrically coupled on the rotary disc 9 and the pedals 7 and 7' is extended variably upon running ⁇ n the case where the pedals 7 and 7' are worked in the advancing direction for the running of the bicycle) to thereby provide a maximum running energy at the expense of the minimum energy.
  • the guide pipes 6 and 6' are rotated along the rotary body 1 1 on the outside of the pedals shaft 3, centering around the pedal shaft 3 eccentrically installed on the rotary disc 9, and the distance between the guide pipes 6 and 6' and the pedal shaft 3 is varied.
  • the distance between the pedal shaft 3 and the pedals 7 and 7' can be extended to the maximum extent at the angle position where a largest energy is transmitted within a rotary radius of the pedals 7 and 7', thereby providing the maximum running energy at the expense of the minimum driving energy.
  • the adjusting part 13 rotates the rotary disc 9 which is connected with the bevel gears 17 and 17', the worm 16 and the worm gear 15 under the manipulation of the adjusting knob 18, as shown in FIGS. 3 and 4, such that the rotary radius of the pedals 7 and 7' is extended to the maximum extent at the angle where the largest energy transmission is generated upon running.
  • the fixed hole 24 of the rotary disc 9 is selectively fixed on the adjusting holes 26 and 26' of the flanges 2 and 2' , such that a desired angle can be adjusted by the rotation of the rotary disc 9.
  • FIG. 9 shows the third embodiment of the present invention, in which the chain sprocket 4 and the pedals 7 and 7' are installed on the auxiliary frame 27, without any installation of the rotary disc 9, which provides a light and compact bicycle.
  • FIGS. 10 to 12 shows the fourth embodiment of the present invention, in which the rotary member 30 rotary-coupled on the assembling hole 29 of the frame 28 is rotated by the operation of the piston 35 of the oil hydraulic cylinder 34 connected to the control part 36 as shown in FIG. 13, such that the angle between the pedal shaft 3 coupled on the rotary member 30 and the shaft pin 6a of the guide pipes 6 and 6' coupled on the rotary body 1 1 can be adjusted to thereby obtain the same operational effect as in the above embodiments.
  • FIGS. 15 to 22 show the various embodiments of the pedal angle adjusting part 41 , which is adapted to have the pedals 7 and 7' inclined forwardly centering around the pedal shaft 3, upon running on the upward climbing road.
  • the pedals 7 and 7' are inclined by a predetermined angle forwardly centering around the pedal shaft 3, upon running on the upward climbing road, such that the running energy consumption by the working of the pedals 7 and 7' can be minimized.
  • FIG. 15 shows the one embodiment of the pedal angle adjusting part 41 , in which the arm 42 having the shaft hole 43 is installed to be angle-moved on the frame 1 by means of the shaft pin 44 and is connected to the piston 47 of the oil hydraulic cylinder 46 connected to the control part 36. If the piston 47 operates by the control part 36, the arm 42 is angle-moved forwardly or backwardly centering around the shaft pin 44 and moves the shaft hole 43 to the front and rear wheels, such that the angle of the pedals 7 and 7' centering around the pedal shaft 3 is adjusted.
  • FIGS. 16 and 17 show another embodiments of the pedal angle adjusting part 41 .
  • the screw bar 51 on the one end of the rotary bar 50 rotating-supported on the operation lever 52 is screw-coupled on the screw pipe 49 on the one side of the arm 42, and the rotary bar 50 is connected to the adjusting wire 56 of the adjusting handle 58.
  • the screw bar 51 is screw-assembled or dissembled with/from the screw pipe 49 of the arm 42, and thus the arm 42 is angle-moved to move the pedal shaft 3 to the front or rear wheel sides, such that the angle of the pedals 7 and 7' centering around the pedal shaft 3 is adjusted.
  • FIGS. 19 to 21 show another embodiments of the pedal angle adjusting part 41 .
  • the screw bar 69 which is screw-coupled on the screw hole 68 of the guide pipe 65 sliding-coupled on the slide hole 63 of the frame 64, is rotated by means of the adjusting wire 56a connected via the adjusting handle 58 with the rotary wheel 70.
  • the screw bar 69 is screw-assembled or dissembled with/from the screw hole 49 of the guide pipe 65, to thereby move the guide pipe 65 forwardly or backwardly, and thus, the pedal shaft 3 which is coupled on the shaft hole 66 of the guide pipe 65 is moved, such that the angle of the pedals 7 and 7' centering around the pedal shaft 3 is adjusted.
  • the pedal angle adjusting part 41 as shown in FIG.
  • the screw bar 51 of the rotary bar 50 is screw-coupled on the screw hole 68 of the guide pipe 65, and if the rotary bar 50 is rotated forwardly or backwardly, the screw bar 51 is screw-coupled or separated with/from the screw hole 68 of the guide pipe 65 to move the guide pipe 65 forwardly or backwardly.
  • the pedal shaft 3 which is coupled on the shaft hole 66 of the guide pipe 65 is moved to the front or rear wheel sides, such that the angle of the pedals 7 and 7' centering around the pedal shaft 3 is adjusted.
  • FIGS. 23 to 25 show another embodiment of the pedal driving part of the present invention. If the pedals 7 and 7' are driven to rotate the driving case 77 centering around the pedal shaft 3, the planetary gear 80, which is shaft-installed to be freely rotated on the driving case 77 and is tooth-coupled with the fixing gear 74 on the frame 1 , is engaged with the fixing gear 74, while being contacted with the fixing gear 74, to thereby rotate in the same direction as the driving case 77.
  • the connect arm 81 connected to the eccentric pin 82 of the planetary gear 80 performs the straight line movement and is extruded from the driving case 77, such that the distance between the pedals 7 and 7' and the pedal shaft 3 can be adjusted.
  • the planetary gear 80 is coupled on the same horizontal line position as the fixing gear 74 and the eccentric pin 82 is set on the same line position as the planetary gear 80. Accordingly, the connect arm 81 coupled with the eccentric pin 82 is protruded to the maximum extent from the driving case 77, that is, the connect arm 81 is disposed by a longest distance from the pedal shaft 3, and the distance of the pedals 7 and 7' coupled with the connect arm 81 of the driving case 77 is longest from the pedal shaft, such that the pedals 7 and 7' are driven to obtain the maximum driving energy at the expense of the minimum driving energy.
  • FIGS. 26 and 27 show another embodiments of FIG. 23, which is made in a reverse structure to that of FIG. 23.
  • the pedals 7 and 7' are coupled on the fixing gear 74 of the driving case 77 and the pedal shaft 3 is coupled on the end of the connect arm 81 of the planetary gear 80 tooth-coupled on the fixing gear 74.
  • the connect arm 81 rotates centering around the pedal shaft 3 to rotate the planetary gear 80 eccentric-coupled via the eccentric pin 82 with the guide hole 83.
  • the fixing gear 74 is rotated and the driving case 77 is moved forwardly or backwardly from the connect arm 81 , such that the distance between the pedals 7 and 7' coupled with the fixing gear 74 and the pedal shaft 3 coupled with the connect arm 81 can be adjusted.
  • FIGS. 28 to 30 show yet another embodiments of the pedal driving part of the present invention. If the pedals 7 and 7' are driven to rotate the driving case 77 centering around the pedal shaft 3, the internal gear 87 which is formed as the unitary body with the driving case 77 is engaged with the planetary gear 88 of the pedal shaft 3 and is rotated. At this time, the connect link 89 rotates by the rotation of the driving case 77. centering around the eccentric shaft 86 coupled together with the planetary gear 80 with the fixing body 75 on the frame 1.
  • the connect link 89 within the driving case 77 is rotated by the rotation of the driving case 77, centering around the eccentric shaft 86, and thereby the driving bar 90 connected to the connect link 89 is extruded from the driving case 77, such that the pedals 7 and 7' coupled with the driving bar 90 are extended to the maximum extent from the pedal shaft 3.
  • the connect link 89 is rotated centering around the eccentric shaft 86 according to the rotation of the driving case 77, and the driving bar 90 connected to the connect link 89 centering around the pedal shaft 3 shaft-installed on the fixing body 75 according to the rotation angle of the driving case 77 is extruded.
  • the driving case 77 rotates in the advancing direction
  • the pedals 7 and 7' coupled on the end of the driving bar 90 are extended to the maximum extent from the pedal shaft 3, to thereby obtain the maximum running energy at the expense of the minimum driving energy.
  • FIGS. 28 to 30 show yet another embodiments of the pedal driving part of the present invention. If the pedals 7 and 7' are driven to rotate the driving case 77 centering around the pedal shaft 3, since the internal guide gear 95 which is tooth-coupled with the fixing gear 91 of the frame 1 and is guided by the rotation of the driving case 77, it rotates in the same direction as the driving case 77. The idle gear 94 whose other side is tooth-coupled with the guide gear 95 is rotated in the reverse direction(against the driving case 77) according to the rotation of the guide gear 95.
  • the connect link 89 connected to the eccentric shaft 96 is rotated together with the driving case 77, and the driving bar 90 connected to the connect link 89 adjusts its own length from the pedal shaft 3 centering around the eccentric shaft 96, to thereby obtain the maximum running energy at the expense of the minimum driving energy.
  • FIGS. 28 to 30 show still another embodiments of the pedal driving part of the present invention. If the pedals 7 and 7' are driven to rotate the driving case 108, the planetary gear 1 10 tooth-coupled with the fixing gear 106 of the assembling pipe 105 of the shaft hole 73 is rotated together with the driving case 108 centering around the fixing gear 106.
  • the driving bar 1 13 connected via the connect arm 1 14 with the connect link 1 12 of the planetary gear 1 10 is slid forwardly or backwardly from the driving case 108, and the distance between the pedals 7 and 7' connected to the end of the driving bar 1 13 and the pedal shaft 3 can be adjusted to thereby obtain the maximum running energy at the expense of the minimum driving energy.
  • the planetary gear 1 10 which is tooth-coupled with the fixing gear 106 is rotated at one time centering around the fixing gear 106, and the pedals 7 and 7' which are connected to the end of the driving bar 1 13 are rotated in a long oval shape centering around the pedal shaft 3a.
  • FIGS. 40 to 42 show another embodiment of the driving bar 90, as shown in FIGS. 28 and 31 , on which the connect link 89 and the pedals 7 and 7' are coupled. If the driving case 77 is rotated to rotate the pedal shaft 3, the connect link 97 which is connected eccentrically to the fixing body 75 and the idle gear 94 performs the reciprocating movement, and the guide gear 102(small gear 102a) which is formed on the operation hole 100 of the connect link 97 rotates, so the large gear 102b formed on the same shaft of the small gear 102a is rotated in the same direction.
  • the driving bar 98 which is connected via the small gear 102a to the connect link 97 is extruded from the driving case 99, which provides a secondary * distance adjusting function, such that the distance between the pedal shaft 3 and the pedals 7 and 7' can be further extended.
  • an adjustable pedal driving device of a bicycle constructed according to the present invention can extend to the maximum extent the rotary radius between a pedal shaft and pedals, when the pedals are driven in the advancing direction, to thereby obtain a maximum running at the expense of a minimum driving energy consumption.
  • an adaptable pedal driving device of the present invention can move a pedal shaft to the front and rear wheels by means of a pedal angle adjusting part to adjust the angle of the pedals and when the driving force of the pedals connected to the pedal shaft and a driving bar is disposed vertically upon running on the upward climbing road, can set the angle of the pedals at a predetermined inclination, to thereby obtain an optimal running energy at the expense of a minimum driving energy.
  • the bicycle of the present invention can be applied to various kinds of bicycles such as, for example, a bicycle for use in leisure and the like.

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

Abstract

L'invention concerne un dispositif d'entraînement de pédale de bicyclette réglable qui peut s'étendre, en fonctionnement, sur une distance comprise entre un axe de pédale de pignon de chaîne transmettant une force de rotation des pédales à la roue arrière, d'une part, et les pédales, d'autre part. Cela permet d'obtenir une force maximum avec un minimum d'énergie d'entraînement. Le dispositif comprend les élément suivants: un cadre dans lequel un pignon de chaîne à l'intérieur des deux brides correspondantes est couplé par arbre sur un axe de pédale; un corps rotatif couplé rotatif comme corps unitaire avec les brides; un disque rotatif couplé rotatif comme corps unitaire avec le corps rotatif et couplé par axe à excentrique avec l'axe de pédale; des premier et second tubes de guidage couplés coulissants sur des première et seconde barres de fonctionnement avec couplage aux deux extrémités de l'axe de pédale et fixation par broche d'axe sur le corps rotatif, de manière à régler la distance entre l'axe de pédale et les pédales au moment de l'entraînement rotatif de l'axe de pédale pour le fonctionnement; et un mécanisme de réglage, entre le disque rotatif et le cadre susmentionné, de manière à fixer le disque en question sur le cadre et à régler ce disque selon un angle arbitraire, avec centrage autour de l'axe de pédale.
PCT/KR1999/000701 1998-11-21 1999-11-22 Dispositif d'entrainement de pedale de bicyclette reglable WO2000030924A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU11880/00A AU1188000A (en) 1998-11-21 1999-11-22 Adjustable pedal driving device of bicycle

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
KR19980050327 1998-11-21
KR1998/50327 1998-11-21
KR19990021920 1999-06-12
KR1999/21920 1999-06-12
KR1999/50049 1999-11-11
KR1019990050049A KR100348598B1 (ko) 1998-11-21 1999-11-11 자전거의 가변식 페달구동장치

Publications (1)

Publication Number Publication Date
WO2000030924A1 true WO2000030924A1 (fr) 2000-06-02

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PCT/KR1999/000701 WO2000030924A1 (fr) 1998-11-21 1999-11-22 Dispositif d'entrainement de pedale de bicyclette reglable

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KR (1) KR100348598B1 (fr)
AU (1) AU1188000A (fr)
WO (1) WO2000030924A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2268911A1 (es) * 2003-02-18 2007-03-16 Beñat Aiastui Irizar Sistema de transmision de potencia mediante pedaleo eliptico con bielas de longitud variable.
ES2268923A1 (es) * 2004-02-20 2007-03-16 Beñat Aiasturi Irizar Dispositivo mecanico de acoplamiento para conversion de movimientos.
GB2440404A (en) * 2006-07-26 2008-01-30 Andrew James Smith Bicycle pedal crank drive assembly
ITPD20080288A1 (it) * 2008-10-14 2010-04-15 Amos Innocenti Bicicletta con pedivella maggiorata e variatore costante di lunghezza

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102520057B1 (ko) 2020-12-08 2023-05-03 강병남 가변식 크랭크

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1546014A (en) * 1976-06-28 1979-05-16 Berclaz R Pedal mechanism
US5207119A (en) * 1992-02-06 1993-05-04 Francois Garneau Pedal mechanism for a human propulsion vehicle
WO1993019976A1 (fr) * 1992-03-31 1993-10-14 Powerbike Fahrräder & Komponenten Gmbh & Co. Kg Mouvement de manivelles de pedalier pour bicyclettes ou engins similaires
FR2717440A1 (fr) * 1994-03-21 1995-09-22 Rousseau Rene Manivelles extensibles pour pédaliers.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5059946A (fr) * 1973-09-29 1975-05-23
JPS50138756U (fr) * 1974-05-01 1975-11-14
JPS5180847U (fr) * 1974-12-21 1976-06-28
JPS53138364U (fr) * 1977-04-06 1978-11-01
JPS5647378A (en) * 1979-09-26 1981-04-30 Kiyoji Yamada Pedal mechanism for bicycle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1546014A (en) * 1976-06-28 1979-05-16 Berclaz R Pedal mechanism
US5207119A (en) * 1992-02-06 1993-05-04 Francois Garneau Pedal mechanism for a human propulsion vehicle
WO1993019976A1 (fr) * 1992-03-31 1993-10-14 Powerbike Fahrräder & Komponenten Gmbh & Co. Kg Mouvement de manivelles de pedalier pour bicyclettes ou engins similaires
FR2717440A1 (fr) * 1994-03-21 1995-09-22 Rousseau Rene Manivelles extensibles pour pédaliers.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2268911A1 (es) * 2003-02-18 2007-03-16 Beñat Aiastui Irizar Sistema de transmision de potencia mediante pedaleo eliptico con bielas de longitud variable.
ES2268923A1 (es) * 2004-02-20 2007-03-16 Beñat Aiasturi Irizar Dispositivo mecanico de acoplamiento para conversion de movimientos.
GB2440404A (en) * 2006-07-26 2008-01-30 Andrew James Smith Bicycle pedal crank drive assembly
ITPD20080288A1 (it) * 2008-10-14 2010-04-15 Amos Innocenti Bicicletta con pedivella maggiorata e variatore costante di lunghezza

Also Published As

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KR20000035420A (ko) 2000-06-26
KR100348598B1 (ko) 2002-08-13
AU1188000A (en) 2000-06-13

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