WO2007056837A1 - Pedale de puissance pour bicyclette - Google Patents

Pedale de puissance pour bicyclette Download PDF

Info

Publication number
WO2007056837A1
WO2007056837A1 PCT/CA2005/001759 CA2005001759W WO2007056837A1 WO 2007056837 A1 WO2007056837 A1 WO 2007056837A1 CA 2005001759 W CA2005001759 W CA 2005001759W WO 2007056837 A1 WO2007056837 A1 WO 2007056837A1
Authority
WO
WIPO (PCT)
Prior art keywords
cranks
pedal
frame
reel
bicycle
Prior art date
Application number
PCT/CA2005/001759
Other languages
English (en)
Inventor
Rudolf Susko
Original Assignee
Rudolf Susko
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 Rudolf Susko filed Critical Rudolf Susko
Priority to PCT/CA2005/001759 priority Critical patent/WO2007056837A1/fr
Publication of WO2007056837A1 publication Critical patent/WO2007056837A1/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
    • B62M1/24—Rider propulsion of wheeled vehicles with reciprocating levers, e.g. foot levers
    • B62M1/28—Rider propulsion of wheeled vehicles with reciprocating levers, e.g. foot levers characterised by the use of flexible drive members, e.g. chains

Definitions

  • TITLE POWERPEDAL FOR ABICYCLE
  • This invention relates to a drive mechanism for a vehicle. More specifically, the present invention relates to a new drive mechanism for transferring power from the pedals to the fear wheel of a bicycle.
  • the drive mechanism according to the present invention departs from the concepts and designs of the prior art, and in so doing provide an apparatus primarily developed for a novel power transfer from the pedals to the rear wheel of a bicycle.
  • Patents DE-3707669 and DE-3942658 disclose some type of scissor assembly used in a different arrangement to enlarge the pedal orbit, and thus improving the easiness of ride.
  • the structure differs from the present invention by disclosing the standard chain driven system and circular motion cranks for transmitting power to a wheel.
  • U.S. Patent No. 5,988,662 also discloses a type of scissor assembly used in a large lever operated bicycle for physically challenged riders. This drive mechanism is substantially different from the present invention in its structure, number of components and means for transmitting power to a wheel.
  • Bicycle drive mechanisms devised and utilized are known to consist of familiar, expected and obvious structural configurations.
  • the present invention consists of a novel drive mechanism, characterized by partially rotating pedal cranks.
  • a scissor assembly defined by plurality of arms pivotally interconnected in an expandable sequence being attached pivotally to a frame and slidably to a rigid slot and via the slot being connected to the pedal cranks, whereby permitting the cranks oscillating movement and thus transferring the pedal cranks force into the linear pulling force.
  • a flexible ligament is connecting the scissor assembly to a driven wheel axle arranged for causing rotary motion of the wheel.
  • the wheel axle is equipped with a freewheeling reel and the flexible ligament is spiraled in the reel, whereby the scissor assembly pulling force causes wheel rotation by unwinding cable spiral from the reel.
  • the scissor assembly is being positioned on both side of the frame in mirror image and includes a pulley mounted on the frame and engaged by the flexible ligament, for example a cable, extending from the reel from each side of the frame and thus causing reciprocal cranks movement.
  • the present invention does not preclude the use of a wheel hub transmission. It is an object of the present invention to alleviate the human force requirements on the foot pedal by the efficient power transfer of the foot pedal force for powering the wheel.
  • the pedal cranks frontal oscillating motion is transmitted by the plurality of arms into a rapid pulling force enabling a substantial improvement in the speed - limited on the conventional circular motion pedals by maximum achievable pedal cadence of its rider.
  • Still another object of the present invention is to eliminate cumbersome back-upward segment of circular motion pedals and permitting only effective frontal segment of the 360-degree pedal orbit.
  • the power pedal is suitably sized and adapted for the use on existing bicycle-type frames without changing the rider position. It features simplicity, inexpensive design, eliminates unnecessary moving parts and thus lessens maintenance burden.
  • Figure 1 is a side view illustrating the power pedal applied on a bicycle.
  • Figure 2 is a side view illustrating the power pedal in a retracted position.
  • Figure 3 is a side view illustrating the power pedal in a depressed position.
  • a cycle-type vehicle includes at least two wheels from which one is a driven wheel 1 with an axle 2 and a frame 3.
  • the frame 3 alternatively has supports or struts commonly provided on bicycles, or other desired structural members, etc.
  • the preferred embodiments of the present invention include scissor assembly 4 7 defined herein by a plurality of arms pivotally interconnected in an expandable sequence being made preferably from a metal or metal alloy material.
  • the assembly is positioned in a mirror image on both sides of the frame, although the illustrations refer mostly to one side. Desired operation of the assembly 4 for transferring pedal cranks 10 power into a linear pulling force is accomplished by the two attachments to the frame 3 of a bicycle: pivot mount on a stationary shaft 8, more or less in the vicinity where the conventional cranks are mounted, and slidable attachment in the slot 9 by the pivot 13.
  • the scissor assembly 4 arms are suitably sized for the engagement range between the shaft 8 and the wheel axle 2, commonly known as a chain stay.
  • the crank's leverage is given by the position of the fulcrum being integral with a pivot 12 where the pedal crank 10 is interconnected with the scissor assembly 4 via the rigid slot 9 by a connecting arm 11.
  • the leverage of the pedal crank 10, for example of 4:1, indicates that the human force on a foot pedal 14 is four times lesser than the force provided by the shaft 8 to move the pivot 13 within the slot 9.
  • the connecting arm 11 is recommended to be longer then the pedal crank 10 segment from the pivot 12 to the shaft 8.
  • This arrangement makes the pivot 12 eccentrically positioned and its location determines the moving range of the pedal crank 10 from the upper retracted position as shown in FIG 2 to folly depressed position as seen in FIG 3.
  • the frontal segment of the 360-degree potential orbit around the shaft 8 is recognized to be the most efficient range.
  • Pedal crank 10, constructed similar to the conventional bicycle pedal cranks, is rotatably mounted on the stationary shaft 8 and includes conventional foot pedals 14 rotatably mounted thereon.
  • the slot 9 is rigidly welded at the bottom of the stationary shaft 8 enabling perpendicular slidable movements of the pivot 13 engaged in the slot 9. Its length is determined by the size of the scissor assembly 4. Applied force on pedal 14 moves the pivot 13 away from the shaft 8 in the confinement of the slot 9, whereby the scissor assembly 4 is rapidly closing horizontally and drawing cable 6 as illustrated in FIG 3 engaged in the axle 2.
  • the slot 9 can be disposed from the stationary shaft 8 horizontally towards the wheel axle 2.
  • the pivot 12 is integral with the shaft 8, however, the power transfer dynamics of the scissor assembly 4 is essentially the same.
  • the reel 5 is made preferably from a light, strong material like aluminum or other metal alloy or plastic. Width of the reel 5 is relatively narrow and dependent on the thickness of the cable 6 in order to fit only couple of single plane spirals 15 on the reel 5 hub.
  • the conventional circular motion pedal cranks are disposed on each side of the frame in opposite 180-degree direction.
  • the manual power on the foot pedal is exerted on a front- downward portion of the cycle and the pedals are retracted by the back-upward motion.
  • the present invention pedal cranks 10 are both disposed in a frontal direction for a frontal reciprocating operation. This arrangement eliminates the laborious back-upward retraction of the full cycle classic pedals.
  • a pulley 7, as shown in FIG 1, in the present embodiment is secured on the frame 3 enabling a reciprocal retraction of the pedal cranks 10 on both sides of the frame by being engaged with the cable 6 departing from each reel 5.
  • Cable 6 is secured on the reel 5 hub and forms a double spiral configuration each oriented in opposite direction so that one end exits the reel 5 at the top for adjustable connection to the pedal assembly 4 and the other end exits the reel 5 at ]the bottom for engaging the pulley 7 as seen in FIG 1.
  • This arrangement provides an inverse rotation of respective freewheeling reels 5 on each side of the wheel 1.
  • Depressed pedal crank 10 on one side rotates the powered wheel 1 in a predictable direction and causes inverse rotation of freewheeling reel 5 on the other side and thus causing reciprocal upward retraction of respective pedal cranks 10.
  • the actual length of cable 6 is determined by the distance from the last unit of fully depressed pedal crank 10, as illustrated in FIG 3, on one side to fully retracted pedal in FIG 2 on the other side and the required size of the spirals 15 diameter. This can easily be established by those skilled in the equipment-manufacturing field. Cable 6 is preferably made from a steel rope covered with plastic layer similar to a commonly used cable in pulley-type exercise equipment.
  • the present invention is expressly not limited to these embodiments.
  • the reciprocal cranks 10 movement can be accomplished, in absence of the pulley 7, by a coil spring engaged on the reel 5 on both sides enabling independent pedal cranks 10 movements.
  • the freewheel reel 5 can have a different configuration including an arrangement for various spiral 15 sizes and thus defining a transmission, in fact, even a sprocket with segmented chain can be used.

Abstract

La présente invention concerne un nouveau mécanisme d’entraînement pour une bicyclette, qui comporte un assemblage de ciseaux défini par une pluralité de bras reliés les uns aux autres de façon pivotante selon une séquence extensible. L’assemblage de ciseaux est fixé de façon pivotante à un cadre des deux côtés et par l’intermédiaire d’une fente rigide fixée de façon pivotante à des manivelles de pédale, moyennant quoi la rotation partielle avant des manivelles est possible. Le mouvement avant alternatif des manivelles est transféré par l’assemblage en une force de traction linéaire reliée à un essieu de roue motrice, équipé d’une bobine de roue libre, par un câble flexible enroulé dans la bobine. L’efficacité de la cinétique de transfert de puissance de l’assemblage réduit la force humaine nécessaire, de plus, la vitesse est sensiblement augmentée du fait que le mouvement des manivelles est confiné au segment avant le plus efficace de l’orbite de 360 degrés moyennant quoi le segment arrière ascendant du mouvement circulaire des pédales est éliminé.
PCT/CA2005/001759 2005-11-21 2005-11-21 Pedale de puissance pour bicyclette WO2007056837A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CA2005/001759 WO2007056837A1 (fr) 2005-11-21 2005-11-21 Pedale de puissance pour bicyclette

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CA2005/001759 WO2007056837A1 (fr) 2005-11-21 2005-11-21 Pedale de puissance pour bicyclette

Publications (1)

Publication Number Publication Date
WO2007056837A1 true WO2007056837A1 (fr) 2007-05-24

Family

ID=38048234

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA2005/001759 WO2007056837A1 (fr) 2005-11-21 2005-11-21 Pedale de puissance pour bicyclette

Country Status (1)

Country Link
WO (1) WO2007056837A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101920757A (zh) * 2010-05-27 2010-12-22 覃国君 可增大摇杆摆角的自驱式无动力车辆
GB2480233A (en) * 2010-05-06 2011-11-16 James Martin Terry-Short Pedal powered power source
ITMI20112119A1 (it) * 2011-11-22 2013-05-23 Dmgmilano Snc Di Lambrughi E Tremol Ada Mezzo di trasporto non a motore

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3886807A (en) * 1973-09-17 1975-06-03 Robert P Ellis Bicycle operating means
US5833257A (en) * 1994-03-17 1998-11-10 Kohlheb; Robert Alternating drive for wheeled vehicles

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3886807A (en) * 1973-09-17 1975-06-03 Robert P Ellis Bicycle operating means
US5833257A (en) * 1994-03-17 1998-11-10 Kohlheb; Robert Alternating drive for wheeled vehicles

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2480233A (en) * 2010-05-06 2011-11-16 James Martin Terry-Short Pedal powered power source
CN101920757A (zh) * 2010-05-27 2010-12-22 覃国君 可增大摇杆摆角的自驱式无动力车辆
ITMI20112119A1 (it) * 2011-11-22 2013-05-23 Dmgmilano Snc Di Lambrughi E Tremol Ada Mezzo di trasporto non a motore

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