WO2012108788A2 - Racing bicycle - Google Patents

Racing bicycle Download PDF

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Publication number
WO2012108788A2
WO2012108788A2 PCT/RU2012/000030 RU2012000030W WO2012108788A2 WO 2012108788 A2 WO2012108788 A2 WO 2012108788A2 RU 2012000030 W RU2012000030 W RU 2012000030W WO 2012108788 A2 WO2012108788 A2 WO 2012108788A2
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WO
WIPO (PCT)
Prior art keywords
bicycle
wheel
rim
symmetry
tyre
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PCT/RU2012/000030
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French (fr)
Russian (ru)
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WO2012108788A3 (en
Inventor
Юрий Антонович ПЕТРОВСКИЙ
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Petrovsky Jury Antonovich
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Publication of WO2012108788A2 publication Critical patent/WO2012108788A2/en
Publication of WO2012108788A3 publication Critical patent/WO2012108788A3/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K17/00—Cycles not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K21/00—Steering devices
    • B62K21/02—Front wheel forks or equivalent, e.g. single tine

Definitions

  • the invention relates to the field of production of bicycles and, in particular, racing bicycles.
  • the main requirement for its structural elements is to provide a minimum aerodynamic drag for the whole team, consisting of two, three, four or more riders, which is ensured both by the optimization of the profiles of the bicycle’s structural elements proper and rational the location of all the riders of the team one after another, providing the minimum mid-section of the team as a whole and its optimal aerodynamic pro in relation to the vector of the oncoming air flow.
  • Another important factor is the ergonomics of the design, which allows the rider to have a stable fit and reliable control of the bike.
  • One of the main structural elements of a bicycle is the wheels, which provide support for the bicycle, with the rear wheel used to create progressive movement of the bicycle, and the front wheel to control the bicycle.
  • Famous racing bike adopted for the prototype, consisting of a frame, front fork, front and rear wheels, saddle, pedal drive, as well as a steering wheel connected to the front fork of the bicycle (V.P. Lubovitsky. Racing bicycles. - L.: Engineering, Leningradskoe Department, 1989, pp. 59-60).
  • the front and rear wheels of a track bike are in the same vertical plane along the axis of symmetry of the bike and have the same inclination of their side surfaces to the plane of rotation of the wheels.
  • This layout and wheel structure for team racing on the track determines the location of one rider after another strictly along the axis of symmetry of the team, with the front wheel of each rider (with the exception of the leader) located behind the rear wheel of the front rider with the necessary safety clearance.
  • riding on the bends of the track which makes up the bulk of the distance, places high demands on the management of the bike.
  • SUBSTITUTE SHEET (RULE 26) The present invention solves the problem of increasing the operational characteristics of the bike by improving the aerodynamics of the team of riders and facilitating the management of the bike when riding on bends of the track.
  • a racing bike which includes a frame, a front fork with a steering wheel, front and rear wheels, a saddle and a pedal drive
  • due to the displacement of the rim with the tire to the left of the axis of symmetry of the front wheel its right side surface is parallel to the plane the rotation of the wheel and is shifted to the left side of the axis of symmetry of the bicycle by half the required lateral safety clearance
  • due to the displacement of the rim with the tire to the right of the axis of symmetry of the rear wheel its left side surface of the wheel is parallel the plane of rotation of the wheel has an undercut made at a small angle from the rim to the hub and is shifted to the right side from the axis of symmetry of the bicycle by half the required lateral safety clearance.
  • the amount of necessary lateral safety clearance can be provided by shifting the steering column of the bicycle frame to the left of the vertical plane of symmetry of the rear wheel without moving the rim with the tire from the axis of symmetry of the wheels.
  • the size of the safety gap depends on the skill of the rider and is approximately 10-15 mm.
  • the team leader changes only to the right side and there are only left turns in turns, due to a change in the design of the bicycle wheels and the displacement of their vertical planes in different directions from the axis of symmetry of the bicycle , so that the riders, being one after the other on the axis of symmetry of the team, are located much closer to each other, creating a more streamlined profile of the team and making it easier to control the bike when cornering eka.
  • SUBSTITUTE SHEET (RULE 26) teams and worsen its aerodynamics.
  • Figure 1 shows a track bike, side view
  • figure 2 shows two bicycles when riding on bends of a track, with displaced rims with tires relative to the axis of symmetry of the frame
  • top view shows two bicycles when riding on bends of a track, with left-handed steering columns of bicycle frames, relative to the axis of symmetry of the rear wheel, top view.
  • the track bike has a frame 1, a front fork 2 connected to the steering wheel 3, a front wheel 4, a rear wheel 5 and a saddle 6 mounted on the frame 1, and also a pedal drive 7.
  • the work of the bike is as follows. Each driver of the team (except the leader) will place his front wheel 4 next to the rear wheel 5 of the front driver, moving forward half the wheel, which, without breaking the longitudinal symmetry of the team, reduces its total length by 90 cm (with standard wheel diameter), the most improving aerodynamics of the team.
  • a leader who moves to the right and, skipping the whole team, becomes at its end, placing his front wheel 4 not immediately behind the front wheel 5 of the front rider, as it was before, but pushing it forward to the rear wheel sleeve 5 of the front bicycle.
  • the front wheel 4 is slightly turned to the right and with its left side surface enters the undercut cavity of the rear wheel 5, while maintaining the necessary safety clearance.
  • the rear wheel 5 moves the bicycle forward with a skid of its front to the left, which greatly facilitates riding on the bends of the track.

Abstract

The invention is intended to improve the performance characteristics of racing bicycles for team track races by improving the aerodynamics of a team of racers and making a bicycle easier to steer through the turns of a track. The technical result is achieved in a track bicycle comprising a frame (1), a front fork (2) connected to a handlebar (3), a front wheel (4), a rear wheel (5), a saddle (6) and a pedal drive (7), in that as a result of a leftwards offset of the rim and tyre from the axis of symmetry of the front wheel (4), the right-hand lateral surface thereof is parallel to the plane of rotation of the wheel and is offset leftwards from the axis of symmetry of the bicycle by half of the necessary lateral safety clearance, and as a result of a rightwards offset of the rim and tyre from the axis of symmetry of the rear wheel (5), the left-hand lateral surface of the wheel, which is parallel to the plane of rotation of the wheel and has an undercut at a slight angle from the rim to the hub, is offset rightwards from the axis of symmetry of the bicycle by half of the necessary lateral safety clearance, wherein the rim and tyre of the front wheel (4) are situated left of the centre of the front fork (2) of the bicycle frame (1), and the rim and tyre of the rear wheel (5) are situated right of the centre of the rear fork of the bicycle frame (1). The size of the necessary safety clearance can also be provided by offsetting the headset together with the front fork (2) of the bicycle frame (1) left of the vertical plane of symmetry of the rear wheel (5), without offsetting the rim and tyre from the axis of symmetry of the wheels, wherein the rim and tyre of the front wheel (4) are situated in the centre of the front fork (2) of the bicycle frame (1), and the rim and tyre of the rear wheel (5) are situated in the centre of the rear fork of the bicycle frame (1).

Description

Гоночный велосипед  Racing bike
Изобретение относится к области производства велосипедов и, в частности, гоночных велосипедов. The invention relates to the field of production of bicycles and, in particular, racing bicycles.
Для гоночных велосипедов, предназначенных для командных гонок на треке, основным требованием к его конструктивным элементам является обеспечение Минимального аэродинамического сопротивления для всей команды, состоящей из двух, трех, четырёх и более гонщиков, которое обеспечивается как оптимизацией профилей собственно конструктивных элементов велосипеда, так и рациональным расположением всех гонщиков команды друг за другом, обеспечивающих минимальное мидель-сечение команды как единого целого и её оптимальный аэродинамический профиль по отношению к вектору набегающего воздушного потока. Другим важным фактором является эргономичность конструкции, позволяющая обеспечить гонщику устойчивую посадку и надежное управление велосипедом. Одним из основных конструктивных элементов велосипеда является колёса, создающие опору для велосипеда, причём заднее колесо служит для создания поступательно движения велосипеда, а переднее - для управления велосипедом. For racing bicycles designed for team racing on the track, the main requirement for its structural elements is to provide a minimum aerodynamic drag for the whole team, consisting of two, three, four or more riders, which is ensured both by the optimization of the profiles of the bicycle’s structural elements proper and rational the location of all the riders of the team one after another, providing the minimum mid-section of the team as a whole and its optimal aerodynamic pro in relation to the vector of the oncoming air flow. Another important factor is the ergonomics of the design, which allows the rider to have a stable fit and reliable control of the bike. One of the main structural elements of a bicycle is the wheels, which provide support for the bicycle, with the rear wheel used to create progressive movement of the bicycle, and the front wheel to control the bicycle.
Известен гоночный велосипед, принятый за прототип, состоящий из рамы, передней вилки, переднего и заднего колеса, седла, педального привода, а также руля, соединенного с передней вилкой велосипеда (Любовицкий В. П. Гоночные велосипеды. - Л.: Машиностроение, Ленинградское отделение, 1989, с 59-60). Переднее и заднее колёса трекового велосипеда находятся в одной вертикальной плоскости по оси симметрии велосипеда и имеют одинаковый наклон своих боковых поверхностей к плоскости вращения колёс. Такая компоновка и строение колёс для командных гонок на треке обуславливает расположение одного гонщика за другим строго по оси симметрии команды, причем переднее колесо каждого гонщика (за исключением лидера) располагается за задним колесом переднего гонщика с необходимым зазором безопасности. Кроме того, езда на виражах трека, которая составляет основную часть дистанции, предъявляет повышенные требования к управлению велосипедом. Famous racing bike, adopted for the prototype, consisting of a frame, front fork, front and rear wheels, saddle, pedal drive, as well as a steering wheel connected to the front fork of the bicycle (V.P. Lubovitsky. Racing bicycles. - L.: Engineering, Leningradskoe Department, 1989, pp. 59-60). The front and rear wheels of a track bike are in the same vertical plane along the axis of symmetry of the bike and have the same inclination of their side surfaces to the plane of rotation of the wheels. This layout and wheel structure for team racing on the track determines the location of one rider after another strictly along the axis of symmetry of the team, with the front wheel of each rider (with the exception of the leader) located behind the rear wheel of the front rider with the necessary safety clearance. In addition, riding on the bends of the track, which makes up the bulk of the distance, places high demands on the management of the bike.
ЗАМЕНЯЮЩИЙ ЛИСТ (ПРАВИЛО 26) Предлагаемым изобретением решается задача повышения эксплуатационных характеристик велосипеда за счет улучшения аэродинамики команды гонщиков и облегчения управления велосипедом при езде на виражах трека. SUBSTITUTE SHEET (RULE 26) The present invention solves the problem of increasing the operational characteristics of the bike by improving the aerodynamics of the team of riders and facilitating the management of the bike when riding on bends of the track.
Этот технический результат достигается тем, что в гоночном велосипеде, включающем в себя раму, переднюю вилку с рулём, переднее и заднее колеса, седло и педальный привод, за счет смещения обода с шиной влево от оси симметрии переднего колеса, его правая боковая поверхность параллельна плоскости вращения колеса и смещена в левую сторону от оси симметрии велосипеда на половину необходимого бокового зазора безопасности, а за счет смещения обода с шиной вправо от оси симметрии заднего колеса, его левая боковая поверхность колеса, параллельная плоскости вращения колеса, имеет поднутрение, выполненное под небольшим углом от обода до втулки и смещена в правую сторону от оси симметрии велосипеда на половину необходимого бокового зазора безопасности. This technical result is achieved in that in a racing bike, which includes a frame, a front fork with a steering wheel, front and rear wheels, a saddle and a pedal drive, due to the displacement of the rim with the tire to the left of the axis of symmetry of the front wheel, its right side surface is parallel to the plane the rotation of the wheel and is shifted to the left side of the axis of symmetry of the bicycle by half the required lateral safety clearance, and due to the displacement of the rim with the tire to the right of the axis of symmetry of the rear wheel, its left side surface of the wheel is parallel the plane of rotation of the wheel has an undercut made at a small angle from the rim to the hub and is shifted to the right side from the axis of symmetry of the bicycle by half the required lateral safety clearance.
Так же величина необходимого бокового зазора безопасности может быть обеспечена смещением рулевой колонки рамы велосипеда влево от вертикальной плоскости симметрии заднего колеса, не смещая обод с шиной от оси симметрии колёс. Величина зазора безопасности зависит от квалификации гонщика и составляет примерно 10- 15мм.  Also, the amount of necessary lateral safety clearance can be provided by shifting the steering column of the bicycle frame to the left of the vertical plane of symmetry of the rear wheel without moving the rim with the tire from the axis of symmetry of the wheels. The size of the safety gap depends on the skill of the rider and is approximately 10-15 mm.
Таким образом, учитывая особенности езды команды гонщиков на треке, где нет бокового ветра, смена лидера команды происходит только в правую сторону и существуют только левые повороты на виражах, за счет изменения конструкции колес велосипеда и смещения их вертикальных плоскостей в разные стороны от оси симметрии велосипеда, так, что гонщики, находясь один за другим по оси симметрии команды, располагаются значительно ближе друг к другу, создавая более обтекаемый профиль команды и облегчая управление велосипедом при прохождении виражей трека.  Thus, taking into account the peculiarities of riding a team of riders on a track where there is no crosswind, the team leader changes only to the right side and there are only left turns in turns, due to a change in the design of the bicycle wheels and the displacement of their vertical planes in different directions from the axis of symmetry of the bicycle , so that the riders, being one after the other on the axis of symmetry of the team, are located much closer to each other, creating a more streamlined profile of the team and making it easier to control the bike when cornering eka.
При прохождении виражей, которые составляют основную часть дистанции гонок на треке, необходим постоянный небольшой поворот переднего колеса влево, который нужно удерживать одинаковым в течении практически всей гонки. При скоротечности командных гонок и большом физическом напряжении спортсменов, даже небольшие погрешности в управлении велосипедом на виражах увеличивают мидель-сечение When cornering, which make up the bulk of the race distance on the track, you need a constant small turn of the front wheel to the left, which must be kept the same throughout almost the entire race. With the transience of team races and the great physical stress of athletes, even small errors in the management of bicycles on bends increase the midsection
ЗАМЕНЯЮЩИЙ ЛИСТ (ПРАВИЛО 26) команды и ухудшают её аэродинамику. Смещение вертикальной плоскости Переднего колеса от оси симметрии велосипеда влево, а заднего - вправо, создает тягу передней части велосипеда влево, что существенно облегчает езду на виражах трека. SUBSTITUTE SHEET (RULE 26) teams and worsen its aerodynamics. The shift of the vertical plane of the Front wheel from the axis of symmetry of the bicycle to the left, and the rear to the right, creates traction of the front of the bicycle to the left, which greatly facilitates riding on the bends of the track.
Из уровня техники не известен трековый велосипед с предложенным выполнением и боковым смещением переднего колеса относительно заднего. Предлагаемое изобретение иллюстрируется чертежами. На фиг.1 показан трековый велосипед, вид сбоку, на фиг.2 изображены два велосипеда при езде на виражах трека, со смещенными ободами с шинами относительно оси симметрии рамы, вид сверху, на фиг.З изображены два велосипеда при езде на виражах трека, со смещенными влево рулевыми колонками рам велосипедов, относительно оси симметрии заднего колеса, вид сверху. The prior art is not known track bike with the proposed implementation and lateral displacement of the front wheel relative to the rear. The invention is illustrated by drawings. Figure 1 shows a track bike, side view, figure 2 shows two bicycles when riding on bends of a track, with displaced rims with tires relative to the axis of symmetry of the frame, top view, Fig. 3 shows two bicycles when riding on bends of a track, with left-handed steering columns of bicycle frames, relative to the axis of symmetry of the rear wheel, top view.
Трековый велосипед имеет раму 1, переднюю вилку 2, соединенную с рулем 3, переднее колесо 4, заднее колесо 5 и седло 6, установленные на раме 1, и а также педальный привод 7. The track bike has a frame 1, a front fork 2 connected to the steering wheel 3, a front wheel 4, a rear wheel 5 and a saddle 6 mounted on the frame 1, and also a pedal drive 7.
Работа велосипеда заключается в следующем. Каждый гонщик команды(кроме лидера) размешает свое переднее колесо 4 рядом с задним колесом 5 переднего гонщика, выдвигаясь вперед на половину колеса, что, не нарушая продольной симметрии команды, уменьшает её общую длину на 90 см. (при стандартном диаметре колес), тем самым улучшая аэродинамику команды. При смене лидера, который отходит вправо и, пропуская всю команду, становится в ее конце, располагая свое переднее колесо 4 не сразу за задним колесом 5 переднего гонщика, как это было раньше, а выдвигая его вперед до втулки заднего колеса 5 переднего велосипеда. При езде на прямых участках трека, переднее колесо 4 немного повернуто вправо и своей левой боковой поверхностью входит в полость поднутрения заднего колеса 5, сохраняя необходимый зазор безопасности. Кроме того, при смещении образующей переднего колеса 4 влево, а заднего колеса 5 вправо от оси симметрии велосипеда, заднее колесо 5 двигает велосипед вперед с заносом его передней части влево, что существенно облегчает езду на виражах трека. The work of the bike is as follows. Each driver of the team (except the leader) will place his front wheel 4 next to the rear wheel 5 of the front driver, moving forward half the wheel, which, without breaking the longitudinal symmetry of the team, reduces its total length by 90 cm (with standard wheel diameter), the most improving aerodynamics of the team. When changing a leader, who moves to the right and, skipping the whole team, becomes at its end, placing his front wheel 4 not immediately behind the front wheel 5 of the front rider, as it was before, but pushing it forward to the rear wheel sleeve 5 of the front bicycle. When driving in straight sections of the track, the front wheel 4 is slightly turned to the right and with its left side surface enters the undercut cavity of the rear wheel 5, while maintaining the necessary safety clearance. In addition, when the generatrix of the front wheel 4 is shifted to the left, and the rear wheel 5 to the right of the axis of symmetry of the bicycle, the rear wheel 5 moves the bicycle forward with a skid of its front to the left, which greatly facilitates riding on the bends of the track.
ЗАМЕНЯЮЩИЙ ЛИСТ (ПРАВИЛО 26) SUBSTITUTE SHEET (RULE 26)

Claims

Формула изобретения  Claim
Трековый велосипед, включающий раму, переднюю вилку, соединенную с рулём, переднее и заднее колеса, седло и педальный привод, отличающийся тем, что правая боковая поверхность переднего колеса выполнена плоской и смещена в левую сторону от вертикальной плоскости симметрии велосипеда, а левая боковая поверхность заднего колеса имеет поднутрение, выполненное под небольшим углом от левой стороны обода до втулки и смещена в правую сторону от вертикальной плоскости симметрии велосипеда, причем величина необходимого зазора безопасности между плоскостями переднего и заднего колес достигается смещением обода с шиной переднего колеса влево от середины передней вилки велосипеда и смещением обода с шиной заднего колеса вправо от середины задней вилки велосипеда или за счет смещения рулевой колонки рамы велосипеда влево от вертикальной плоскости симметрии велосипеда с сохранением расположения переднего обода с шиной в середине передней вилки велосипеда, а заднего обода с шиной - в середине задней вилки велосипеда.  Track bicycle, including a frame, a front fork connected to the steering wheel, front and rear wheels, a saddle and a pedal drive, characterized in that the right side surface of the front wheel is flat and shifted to the left side of the vertical plane of symmetry of the bicycle, and the left side surface of the rear the wheel has an undercut made at a slight angle from the left side of the rim to the hub and is shifted to the right side from the vertical plane of symmetry of the bicycle, and the size of the required safety clearance between the planes of the front and rear wheels is achieved by shifting the rim with the front wheel tire to the left of the middle of the front fork of the bicycle and shifting the rim with the rear wheel tire to the right of the middle of the rear fork of the bicycle or by shifting the steering column of the bicycle frame to the left of the vertical plane of symmetry of the bicycle while maintaining the location of the front rim with the tire in the middle of the front fork of the bicycle, and the rear rim with the tire in the middle of the rear fork of the bicycle.
ЗАМЕНЯЮЩИЙ ЛИСТ (ПРАВИЛО 26) SUBSTITUTE SHEET (RULE 26)
PCT/RU2012/000030 2011-02-08 2012-01-24 Racing bicycle WO2012108788A2 (en)

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RU2011104521/11A RU2460663C1 (en) 2011-02-08 2011-02-08 Racing bicycle

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPD20120388A1 (en) * 2012-12-19 2014-06-20 Diego Pizzato METHOD OF BALANCING A BICYCLE AND BALLASTING BALANCER FOR A BICYCLE

Citations (4)

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