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WO2018165733A1 - Bicyclette comprenant un dispositif d'extension de selle et un support de pédale - Google Patents

Bicyclette comprenant un dispositif d'extension de selle et un support de pédale Download PDF

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Publication number
WO2018165733A1
WO2018165733A1 PCT/CA2017/050344 CA2017050344W WO2018165733A1 WO 2018165733 A1 WO2018165733 A1 WO 2018165733A1 CA 2017050344 W CA2017050344 W CA 2017050344W WO 2018165733 A1 WO2018165733 A1 WO 2018165733A1
Authority
WO
WIPO (PCT)
Prior art keywords
seat
pedal
bicycle
strut
crank
Prior art date
Application number
PCT/CA2017/050344
Other languages
English (en)
Inventor
Daniel Kewin
Original Assignee
Daniel Kewin
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 Daniel Kewin filed Critical Daniel Kewin
Priority to PCT/CA2017/050344 priority Critical patent/WO2018165733A1/fr
Publication of WO2018165733A1 publication Critical patent/WO2018165733A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62H—CYCLE STANDS; SUPPORTS OR HOLDERS FOR PARKING OR STORING CYCLES; APPLIANCES PREVENTING OR INDICATING UNAUTHORIZED USE OR THEFT OF CYCLES; LOCKS INTEGRAL WITH CYCLES; DEVICES FOR LEARNING TO RIDE CYCLES
    • B62H1/00—Supports or stands forming part of or attached to cycles
    • B62H1/08—Pedal supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J1/00—Saddles or other seats for cycles; Arrangement thereof; Component parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J1/00—Saddles or other seats for cycles; Arrangement thereof; Component parts
    • B62J1/08—Frames for saddles; Connections between saddle frames and seat pillars; Seat pillars
    • 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
    • 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
    • B62M5/00—Foot-driven levers as pedal cranks which can be immobilised as foot-rests
    • 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
    • B62M2003/006—Crank arrangements to overcome dead points

Definitions

  • the present concept relates to bicycles and more particularly relates to an ergonomic new method of use and associated structure.
  • the bicycle seat is often positioned non-ergonomically low to facilitate rider stationary stability, potentially causing harmful knee stress to initiate acceleration at the beginning of arc B
  • the inventor has found through trial and error that by placing the center of the seat overtop of the crank centre, one is able to ergonomically minimize the total pedalling effort and generate 50% more acceleration from each chain wheel revolution and enable stationary stance stability.
  • the inventor has found the following features are relevant to the improved ergonomics, reduced effort, propulsive efficiency and stationary stability:
  • the present invention is a kit to retrofit a conventional upright utility bicycle that includes a seat extender for an upright utility bicycle to translate the seat forwardly over a bicycle crank center line.
  • the seat extender includes a longitudinally extending seat extension attached at a post end to a seat post which is adapted to slip into a seat tube, and the seat extension is configured to attach to the seat.
  • the kit includes a pedal strut adapted to attach to an outer face of a pedal that pivots between a riding position and a stopped position.
  • the pedal strut is selectably rotatable by rider foot action rotating the pedal to pivot the strut in a riding position to avoid the strut making ground contact.
  • the strut also pivots downwardly to contact the ground for stationary stability.
  • the pedal stops at the rear 3 o'clock pedal position and strut is pivoted to the stopped position to stabilize the bicycle while at a stop and to place the opposing pedal in a forward ready to go position.
  • the kit further includes a foot rest extending laterally from the pedal outer face proximate the upper most part of the pedal outer face.
  • the foot rest is adapted to allow the rider to place his foot onto the foot rest to apply weight onto the strut when in the stopped position.
  • the present invention is also an upright utility bicycle that includes a bicycle frame with a seat positioned vertically above the crank centre of a bicycle crank.
  • the frame includes a seat extender to translate the seat forwardly over a crank center line.
  • the seat extender includes a longitudinally extending seat extension attached at a post end to a seat post which is adapted to slip into a seat tube, and the seat extension is configured at a seat end to attach to the seat.
  • the seat end includes a connection tube rigidly attached to the seat end and configured to be connected to the seat.
  • the upright utility bicycle further includes a pedal strut attached to an outer face of a pedal, the pedal strut pivoting between a riding position and a stopped position.
  • the pedal strut is selectably rotatable by rider foot action rotating the pedal to pivot the strut in a riding position to avoid the strut making ground contact or to pivot downwardly the strut to contact the ground for stationary stability.
  • the upright utility bicycle further includes a foot rest extending laterally from the pedal outer face proximate the upper most part of the pedal outer face with the strut in the stopped position the foot rest is adapted to allow the rider to place his foot onto the foot rest to apply weight onto the strut when in the stopped position
  • the present invention is also a method of use of a bicycle that includes the steps of:
  • a bicycle frame which includes a seat positioned centred along a crank
  • the seat is positioned such that it allows the legs to fully apply push to the pedal through a pedal arc from approximately a 30° pedal position to a 210° pedal position wherein the ankle articulates the foot from a neutral position at approximately the 30° position to a plantar extension position at approximately the 150° position, d) wherein the foot is in plantar extension from 210° to 30° from the forward seat position which minimises pedal loads, reciprocally reducing pedal resistance from 30° to 210°.
  • Figure 1 is a schematic side plan view of the present concept a bicycle and method of use.
  • FIG. 1 is a schematic representation of the crank cycle showing the improved pedalling method.
  • Figure 3 is a schematic perspective view of the seat, crank and pedal pegs.
  • Figure 4 is a schematic representation of a crank cycle.
  • Figure 5 is a schematic side plan view of an alternate embodiment of the present concept a bicycle and method of use.
  • FIG. 6 is a schematic representation of the crank cycle showing the improved pedalling method of the alternate embodiment.
  • Figure 7 is a schematic perspective view of the seat, crank and pedal struts of the alternate embodiment.
  • Figure 8 is a schematic perspective view of the crank and pedal struts of the alternate embodiment.
  • Figure 9 is a schematic perspective view of the seat extender.
  • Upright utility bicycle a bicycle with upright seating, though not placed directly over the center of the crank, that normally features a diamond frame for practical transportation purposes.
  • the diamond frame consists of a truss comprised of a front triangle and rear triangle.
  • Variations or other names for the upright utility bicycle include street bicycle, road bicycle, mountain bicycles, roadsters, hybrid bicycles and touring bicycles. An example of one is depicted in Figure 1.
  • FIG. 1 schematically shows a modern day bicycle together with modifications depicting the present concept a bicycle and method of use shown generally as 100.
  • a bicycle and method of use shown generally as 100 includes the following major components namely bicycle frame 102, upper cross bar 104, lower cross bar 106, seat tube 108, a longitudinal seat extender 137 which includes a seat post 119, and a seat extension 121 and a connection means which may be a connection tube 141. It further includes a seat 123 centred over crank centre 129, crank 120, crank arms 124 terminating at pedals 126.
  • the seat extension includes a post end 143 and a seat end 145.
  • Seat extender 137 including connection tube 141, seat end 145, seat extension 121, post end 143 and seat post 119 is depicted in Figure 9.
  • Bicycle method of use 100 further includes front sprocket 122, driving a chain 128 and attached to a rear sprocket 135 which drives rear hub 113 and ultimately rear wheel 116, attached to upper rear forks 117.
  • Lower rear forks 110 are modified to include foot pegs 11 1 and springs 115 which slide along lower rear forks 110. Other arrangements may also be possible.
  • Bicycle and method of use 100 further includes front forks 112, front wheel 1 14 and handle bars 1 18 in similar fashion as a conventional bicycle.
  • the crank further includes a top centre position 212 and bottom centre position 214.
  • Sector A is known as the upper transition arc
  • Sector B is known as the power arc
  • Sector C is known as the lower transition arc
  • Sector D is the unweighted arc.
  • Sectors C, D and A combined are the ineffective part of the crank cycle.
  • the pedalling cycle begins at top centre 212 at 0°.
  • a foot 230 engages with pedal 126 at approximately the 30° which is part of Sector B the power arc wherein foot is on pedal 126. From the 30° position to the 150° position which is Sector B full force is applied by the foot 230 onto the pedal 126 and is transmitted through the crank 120 and through chain 128 back through rear sprocket 135 therefore driving the bike forward.
  • seat 123 includes a seat extension 121 which is attached to seat post 119 as shown in Figure 3 and also in Figure 1.
  • Figure 3 also shows foot pegs 1 1 1 in one particular arrangement as to how springs 1 15 and the spring stop 177 can be used.
  • Figures 1 through 4 depict the apparatus used in the present concept a bicycle and method of use 100. It relates to a new method of use and associated structure.
  • the human body sequentially alternates between a stride and stance during normal walking or running motions.
  • a stride muscle groups move the leg in the same direction in a smooth efficient rhythm.
  • Stance uses powerful anticipated muscle groups sequentially in the leg and the foot and ankle to fulcrum the torso forward over the hip and to initiate the stride to swing the un-weighted leg forward.
  • the stride is used most effectively in the power arc B and the stance in the lower transition arc C until the foot is propelled onto the foot peg 11 1.
  • stride motion the muscles drive the un-weighted leg forward and along pedal entry direction 236.
  • pedal entry direction 236 On the bike the stride motion is used.
  • Pedal along pedal entry direction 236 back to pedal position 232 which is the start of the power arc B.
  • foot 230 is propelled forward by the release of the potential energy in spring 115 and also with the swing muscles of the leg to move the foot from the peg position 234 up to the pedal position 232. This is similar to the swing motion used in walking. [00050] In this manner modified walking stride muscle groups are used during the strong and fast push on the pedal 126 to drive the crank from 30° to 150° normally through power arc B and modified stance musles along to 210 degrees through lower transition arc C which normally provides little to no propulsive power.
  • the foot pegs 111 facilitate a more normal swing of the leg to provide pedal entry action 236 on the bicycle thereby conserving energy and creating more effective pedalling action. Additionally cranking penalties or drag is reduced when the weight of foot 230 is taken off pedal 126 during the un-weighted arc sector D and also some if not all of sector A the upper transition arc.
  • a seat extension 121 and foot pegs 111 and springs 115 combination can be used to retrofit an existing bicycle to bring the seat 123 over top of crank 120 along crank centre 129 and to facilitate removal of foot 230 during sector D and A. It is possible however to design a bike from the ground up wherein seat tube 108 is positioned over crank centre 129 therefore eliminating the need for seat extension 121. Seat extension 121 however is very useful in retrofit applications. Furthermore any combination of seat and foot peg can be utilized depending upon the rider and the desired increase in efficiency. For example it is possible to only use the seat modification or only use the foot peg modification or both together. It is also possible to apply this technology to stationary bicycles or training or exercise bicycles.
  • An upright utility bicycle also referred to hereafter as simply bicycle
  • ergonomic method of use shown generally as 300 includes the following major components namely bicycle frame 302, upper cross bar 304, lower cross bar 306, seat tube 308, seat post 319, seat extension 321, seat 323, crank 320 centred over crank centre 329, crank arms 324 terminating at pedals 326.
  • Bicycle ergonomic method of use 300 further includes front sprocket 322, driving a chain 328 and attached to a rear sprocket 335 which drives rear hub 313 and ultimately rear wheel 316, attached to upper rear forks 317.
  • Pedals 326 are modified to include outwardly extending platforms 351 positioned normal to the outer pedal face and with rearward extending struts 31 1 which rotate the pedal 326 by gravity when the rider's foot is lifted such that the pedal is vertical with the strut dimensioned to contact the ground when the pedal 326 is at the rear 3 o'clock position and the platform for rider foot pressure is horizontal.
  • This allows the rider an ergonomic stationary seated stance on the pedals 326 at the rear 3 and forward 9 o'clock positions and initiation of acceleration by the forward 9 o'clock pedal when the rider rotates the rear 3 o'clock ascending pedal, strut 311 and platform 351 back to riding position.
  • Bicycle and method of use 300 further includes front forks 312, front wheel 314 and handle bars 318 in similar fashion as a conventional bicycle.
  • crank cycle 400 includes four (4) particular crank sectors namely Sector A 404, Sector B 406, Sector C 408, Sector D 410.
  • the crank cycle further includes a top centre position 412 and a bottom centre position 414.
  • Sector A is known as the upper transition arc
  • Sector B is known as the power arc
  • Sector C is known as the lower transition arc
  • Sector D is the dead arc.
  • Sectors D, C, and A combined are the ineffective part of the crank cycle.
  • the ankle articulates the foot to plantar extension through to 210° where the propulsive portion ends.
  • the 30° position to the 210° position which is sector B 406 and C 408, full piston force is applied by the foot 430 onto the pedal 326 and is transmitted through the crank 320 and through chain 328 back through rear sprockets 335 thereby driving the bike forward.
  • the foot 430 is reciprocally driven by the propulsive push of the opposite leg from 150° to 210° with the ankle placing the foot in plantar extension on the pedal 326 from 330° to 30°. Therefore at least one pedal is always under effective propulsion.
  • seat 323 includes a seat extension 321 which is attached into seat post 319 as shown in Figure 7 and also in Figure 5.
  • the seat extension 321 puts the seat position forwardly so that the seat 323 is centered over a crank center line 333.
  • the pedal strut 331 is rotatable between the riding position 330 and the stopped position 336 by foot action from the rider.
  • the rider can put his foot on foot rest 351 when in the stopped position 336 and the other foot on the other pedal which is in the ergonomic downstroke 353 ready to go position 357.
  • the crank axle is mounted along lateral axis 371 as shown in Figure 8 of crank assembly 338.
  • Foot rest 351 is mounted along an axis parallel to lateral axis 371.
  • Figure 8 also shows rider operated pedal strut for seated stationary stability.
  • Figures 5 through 9 depict the apparatus used in the present concept a bicycle and method of use 300. It relates to a new method of use and associated structure.
  • the human body sequentially alternates between a stride and stance during the evolved highly energy and work efficient gait used for walking and running.
  • Stance uses powerful anticipated muscle groups and joint kinematics sequentially in the leg, hip, knee, ankle and foot to fulcrum the torso forward over the hip and to initiate the stride that swings the unweighted leg forward in the same direction in a smooth and efficient rhythm.
  • the new pedalling gait ergonomically modifies stance and stride dynamics for efficient propulsion in arcs B and C and reciprocally in arc A and low weighted pedal recovery with the foot in plantar extension in arc D.
  • the forward seated gait modifies the swing recovery kinematics to vector the leg upward and forward with more rider weight on the seat, reducing hamstring and knee stress and reducing reciprocal drag through power arc B, 30° to 150° 406.
  • the forward seated gait recruits the lower limb muscles to the piston drive of the leg and generates high torque without leveraging the upright posture, reducing non-ergonomic strain on torso, arm and wrist muscles.
  • a seat extension 321 and pedal strut 311 with foot rest can be used to retrofit an existing upright utility bicycle to bring the seat 323 over top of crank 320 along crank center 329 and to facilitate stationary stability. It is possible however to design an upright utility bicycle from the ground up wherein seat tube 308 may be positioned over crank center 329 therefore eliminating the need for seat extension 321. It is also possible to design a bike from the ground up wherein pedal struts are integrated. Seat extension 321 however is very useful in retrofit applications as are pedal struts. Furthermore any combination of seat and pedal strut can be utilized depending upon the rider and the desired increase in power and comfort. For example it is possible to only use the seat modification or only use the pedal strut modification or both together. It is also possible to apply this technology to Pedelec bikes or training or exercise bicycles.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Steering Devices For Bicycles And Motorcycles (AREA)

Abstract

La présente invention concerne une bicyclette utilitaire verticale, comprenant un cadre de bicyclette qui contient une selle positionnée à la verticale au-dessus du centre de pédalier d'un pédalier de bicyclette et un dispositif d'extension de selle afin d'effectuer une translation de la selle vers l'avant sur une ligne centrale de pédalier. L'élément d'extension de selle comprend une extension de selle s'étendant au plan longitudinal, fixée au niveau d'une extrémité de support à un support de selle qui est apte à glisser dans un tube de selle. La présente invention concerne également un nécessaire permettant d'installer l'invention sur une bicyclette classique, de sorte que la selle s'étende vers l'avant sur une ligne centrale de pédalier de bicyclette par l'utilisation d'un dispositif d'extension de selle. L'utilisation de la présente invention implique de s'asseoir sur la selle de la bicyclette ou de la bicyclette équipée ultérieurement et permet aux jambes d'appliquer une poussée totalement sur la pédale dans un arc de pédale depuis une position approximativement à 30° jusqu'à une position de pédale à 210°. Pendant l'utilisation, la cheville s'articule d'une position neutre à approximativement la position à 30° vers une position d'extension plantaire au niveau de la position à approximativement 150° et réduisant considérablement la poussée de la position de pédale à 210° vers la position à 30°.
PCT/CA2017/050344 2017-03-17 2017-03-17 Bicyclette comprenant un dispositif d'extension de selle et un support de pédale WO2018165733A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CA2017/050344 WO2018165733A1 (fr) 2017-03-17 2017-03-17 Bicyclette comprenant un dispositif d'extension de selle et un support de pédale

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CA2017/050344 WO2018165733A1 (fr) 2017-03-17 2017-03-17 Bicyclette comprenant un dispositif d'extension de selle et un support de pédale

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WO2018165733A1 true WO2018165733A1 (fr) 2018-09-20

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112278141A (zh) * 2020-10-12 2021-01-29 杭州勇华车业有限公司 一种多功能脚踏板结构

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH201807A (fr) * 1937-11-20 1938-12-15 Barmaverain Maxime Selle de bicyclette.
US4563017A (en) * 1984-01-19 1986-01-07 Kimball James F Support for a bicycle and rider
US4772069A (en) * 1987-12-24 1988-09-20 Schwinn Bicycle Company Longitudinally adjustable saddle mounting for cycle-type apparatus
CN1005905B (zh) * 1987-08-15 1989-11-29 谷健宁 自行车定车器
WO1991001245A1 (fr) * 1989-07-14 1991-02-07 Musto Mario S Regleur longitudinal pour selle de byciclette, utilisant des tubes telescopiques enclenches par un support de selle
FR2800032A1 (fr) * 1999-10-22 2001-04-27 D App De Reeducation Et D Entr Selle de velo reglable en translation horizontale, notamment pour un velo fixe
DE10036379C1 (de) * 2000-06-19 2001-10-25 Thorsten Schima Verstellbare Halterung für einen Fahrradsattel
WO2002056972A1 (fr) * 2001-01-19 2002-07-25 Nautilus, Inc. Velo d'exercice
US6752453B1 (en) * 2003-03-29 2004-06-22 Charles Yapp Seat adjusting device of an exercising cycle
US20100201099A1 (en) * 2009-02-10 2010-08-12 Teng Chang Sheng Pedal Kickstand

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH201807A (fr) * 1937-11-20 1938-12-15 Barmaverain Maxime Selle de bicyclette.
US4563017A (en) * 1984-01-19 1986-01-07 Kimball James F Support for a bicycle and rider
CN1005905B (zh) * 1987-08-15 1989-11-29 谷健宁 自行车定车器
US4772069A (en) * 1987-12-24 1988-09-20 Schwinn Bicycle Company Longitudinally adjustable saddle mounting for cycle-type apparatus
WO1991001245A1 (fr) * 1989-07-14 1991-02-07 Musto Mario S Regleur longitudinal pour selle de byciclette, utilisant des tubes telescopiques enclenches par un support de selle
FR2800032A1 (fr) * 1999-10-22 2001-04-27 D App De Reeducation Et D Entr Selle de velo reglable en translation horizontale, notamment pour un velo fixe
DE10036379C1 (de) * 2000-06-19 2001-10-25 Thorsten Schima Verstellbare Halterung für einen Fahrradsattel
WO2002056972A1 (fr) * 2001-01-19 2002-07-25 Nautilus, Inc. Velo d'exercice
US6752453B1 (en) * 2003-03-29 2004-06-22 Charles Yapp Seat adjusting device of an exercising cycle
US20100201099A1 (en) * 2009-02-10 2010-08-12 Teng Chang Sheng Pedal Kickstand

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112278141A (zh) * 2020-10-12 2021-01-29 杭州勇华车业有限公司 一种多功能脚踏板结构

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