WO2002022437A1 - Structure de bicyclette avec pedales reculantes - Google Patents
Structure de bicyclette avec pedales reculantes Download PDFInfo
- Publication number
- WO2002022437A1 WO2002022437A1 PCT/FR2001/002732 FR0102732W WO0222437A1 WO 2002022437 A1 WO2002022437 A1 WO 2002022437A1 FR 0102732 W FR0102732 W FR 0102732W WO 0222437 A1 WO0222437 A1 WO 0222437A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bicycle structure
- pedals
- constituted
- wheel
- bicycle
- Prior art date
- Legal status (The legal status 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 status listed.)
- Ceased
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
- the present invention relates to a bicycle with reversing pedals.
- crankset which, via 'at least one ring gear, drives a chain connected to at least one pinion associated with the rear drive wheel with the interposition - if this is advantageous - of a freewheel assembly.
- the objective of the present invention is to provide a bicycle structure which makes it possible to reduce the drawbacks indicated, that is to say to improve the shape of the bicycle and the posture of the human body, to make the best use of the capacity produce the work of the lower limbs and transmit to the drive wheel a more continuous torque, with minimum dispersions.
- Another objective of the present invention is to provide a bicycle structure which is easily achievable by using spare parts and materials which are easy to find, with simple and known techniques so that it is also competitive under the economic profile.
- a bicycle structure with receding pedals characterized in that it includes a frame which, by supporting at the front a fork connected to a handlebar and a steering wheel, at the rear a driving wheel and, in the center, a saddle, has a central posterior extension, which supports a shaft secured to at least one wheel toothed. This toothed wheel is then connected to the rear drive wheel by appropriate means.
- this extension come out two almost coaxial pivots on which are connected, so that they can oscillate, two elongated and shaped bodies, on the two opposite sides of this frame, associated with two pedals and connected to flexible drive rods taking place from drive bodies, the latter operably connected to the ends of said shaft. Between this shaft and said drive bodies are interposed two freewheeling assemblies. These drive bodies are further connected by means of flexible tie rods to elastic elements by the interposition of suitable connection means.
- the figure 1 schematically represents a side view of a bicycle structure according to the invention
- Figure 2 shows the structure of the bicycle in partial cross section.
- the bicycle with reversing pedals according to the invention which is indicated in its entirety under the reference 1, comprises the frame 2, the posterior extension 3 of which ends with the pair of pivots 4 and supports the support 5.
- the frame provides the support 6 which is connected to the fork 7 associated with the wheel 8 and to the handlebar 9, while internally it supports the rear forks 10 which support the wheel 11 and the gear change 12.
- Said shaft 13 engages the interior of the two said freewheels 17 on the exterior of which are mounted the drive bodies 26 on which are wound either the said flexible drive rods 18 or the flexible rods 20, the latter
- these said protuberances 23 may contain the said tie rods 18, while they are provided with means 25 suitable for fixing the end of the said tie rods 18.
- Said elongated and shaped bodies 19 are engaged in an oscillating manner with the own housing 27, on the said pivots 4, in correspondence with the own end
- Said saddle 32 is held by movable articulated petal 33 lockable on the oscillation element 34 which, in its opposite part, is fixed to said frame 2 by
- the freewheel mounted on the rear wheels in production it may be advantageous to block the mechanism, or otherwise advantageously provide between the hub and the pinion closer to the same hub, to insert a body, preferably ring shape, to create adequate friction between the • two so-called elements.
- the said drive rod 18 and the said rod 20 are produced with a single chain which is wound from said fixed point 25 on the said protuberance 23, along the said groove 24, around the toothed wheel 26, the latter constituting the said drive body 26, continuing to the pulley 21, constituting the said connecting means 21
- Said pulley 21 is provided with a groove which can contain at least one turn of said chain 18, 20, further comprising the means for fixing at least one mesh.
- said drive body 26 will be constituted by a wheel-shaped body 26, provided with a groove to contain at least one winding winding of said drive cable 18 and a second groove to contain at at least one winding turn of said cable 20, while not neglecting the necessary presence, near both of said grooves, of suitable fixing means, which may be possibly separate, to said cables.
- said cable 20 is possible to provide for said cable 20 to be constituted by the continuation, in extension, of said drive cable 18, thereby making it possible to advantageously provide, on said wheel-shaped body 26, a single groove and a single means of fixing said cable 18, 20.
- the pushing of the foot on said pedal 28 causes the oscillation movement in rear and downwards of said elongated body 19 which, by means of said protuberance 23 equipped with said almost circular groove 24, drives backward, always with respect to the direction of the vehicle, said drive rod 18.
- said tie rod 18 causes a rotation in front of said drive body 26 itself, which in turn drives in a forward rotation said assembly to r free eye 17, mounted so as to be blocked in this direction, so as to drive in the forward rotation, successively, said shaft 13, said toothed wheels 14 nested thereon, said chain 15, said sprockets 16 of said rear wheel 11 and, consequently, said rear drive wheel 11 itself.
- said drive body 26 winds, on its upper part, by pulling it forward, said tie rod 20, which unwinds from said connection means 21 while loading by twist said elastic element 22 connected. This last situation is verified in each of the nonlimiting examples reported in these descriptions.
- said pedal 28 By folding the lower limb towards the belly, and therefore by moving the foot in a backward and upward movement, said pedal 28 will drive said elongated body 19 forward, which will slacken said drive rod 18 which s 'will wind up to said drive body 26; the latter will turn crazy backwards on the said free road 17 predisposed for this purpose, thanks to the pulling action of the said tie rod 20, which will be wound on the said connection means 21 by the torque transmitted to this means by the discharge torque of said elastic element 22 connected.
- the two so-called pedals 28 of the bicycle 1 which is the subject of the present invention can be connected together in various ways, with appropriate means, so that the movement of one depends, in some way, on the movement of the other, but we have seen that it is certainly more advantageous to be able to move the lower limbs by keeping them independent one of the other according to the natural propensity and, moreover, by allowing that, in such conditions, the return movement can be carried out at the most suitable speed.
- the user-vehicle assembly may therefore have a lower center of gravity, a smaller front section and a better coefficient of penetration into the air.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Steering Devices For Bicycles And Motorcycles (AREA)
- Motorcycle And Bicycle Frame (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2001287805A AU2001287805A1 (en) | 2000-09-14 | 2001-09-04 | Bicycle structure with reversing pedals |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT2000MI002001A IT1318858B1 (it) | 2000-09-14 | 2000-09-14 | Struttura di bicicletta a pedali arrettranti |
| ITMI2000A002001 | 2000-09-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2002022437A1 true WO2002022437A1 (fr) | 2002-03-21 |
Family
ID=11445796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2001/002732 Ceased WO2002022437A1 (fr) | 2000-09-14 | 2001-09-04 | Structure de bicyclette avec pedales reculantes |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU2001287805A1 (fr) |
| IT (1) | IT1318858B1 (fr) |
| WO (1) | WO2002022437A1 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH710473A1 (fr) * | 2014-12-13 | 2016-06-15 | Blaser Steven | Vélo à pédales arrières de la roue. |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB280745A (en) * | 1927-01-25 | 1927-11-24 | Frederick Walter Harding | Improvements in the driving mechanism of cycles |
| US4666173A (en) * | 1985-01-08 | 1987-05-19 | Graham Garnard E | Foot pedal drive for bicycles |
-
2000
- 2000-09-14 IT IT2000MI002001A patent/IT1318858B1/it active
-
2001
- 2001-09-04 WO PCT/FR2001/002732 patent/WO2002022437A1/fr not_active Ceased
- 2001-09-04 AU AU2001287805A patent/AU2001287805A1/en not_active Abandoned
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB280745A (en) * | 1927-01-25 | 1927-11-24 | Frederick Walter Harding | Improvements in the driving mechanism of cycles |
| US4666173A (en) * | 1985-01-08 | 1987-05-19 | Graham Garnard E | Foot pedal drive for bicycles |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH710473A1 (fr) * | 2014-12-13 | 2016-06-15 | Blaser Steven | Vélo à pédales arrières de la roue. |
Also Published As
| Publication number | Publication date |
|---|---|
| IT1318858B1 (it) | 2003-09-10 |
| ITMI20002001A0 (it) | 2000-09-14 |
| AU2001287805A1 (en) | 2002-03-26 |
| ITMI20002001A1 (it) | 2002-03-14 |
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