WO2022254099A1 - Foldable bicycle - Google Patents

Foldable bicycle Download PDF

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Publication number
WO2022254099A1
WO2022254099A1 PCT/FR2022/000054 FR2022000054W WO2022254099A1 WO 2022254099 A1 WO2022254099 A1 WO 2022254099A1 FR 2022000054 W FR2022000054 W FR 2022000054W WO 2022254099 A1 WO2022254099 A1 WO 2022254099A1
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WO
WIPO (PCT)
Prior art keywords
bicycle
frame
axis
ground
wheel
Prior art date
Application number
PCT/FR2022/000054
Other languages
French (fr)
Inventor
Jean-Christophe Villain
Original Assignee
Villain Jean Christophe
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 Villain Jean Christophe filed Critical Villain Jean Christophe
Publication of WO2022254099A1 publication Critical patent/WO2022254099A1/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
    • B62K15/00—Collapsible or foldable cycles
    • B62K15/006—Collapsible or foldable cycles the frame being foldable
    • 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
    • B62J43/00—Arrangements of batteries
    • B62J43/10—Arrangements of batteries for propulsion
    • B62J43/13—Arrangements of batteries for propulsion on rider-propelled cycles with additional electric propulsion
    • 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
    • B62K15/00—Collapsible or foldable cycles
    • B62K2015/005—Collapsible or foldable cycles having additional wheels for use when folded or collapsed
    • 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
    • B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
    • B62M6/80—Accessories, e.g. power sources; Arrangements thereof
    • B62M6/90—Batteries

Definitions

  • the present invention relates to a folding bicycle.
  • TWM353868U proposes a design of a foldable mini-bike comprising a two-part foldable frame comprising a front frame part and a rear frame part which is hingedly mounted on the front frame part around a axis of articulation which is generally orthogonal to the plane of the front part of the frame and in which the luggage carrier of the rear part of the frame carries a wheel supporting the ground of the bicycle which, in its storage state, is resting on the ground, as well as the two front and rear wheels which are adjacent to each other.
  • This design also does not meet the requirements for ease of handling between the unfolded and folded states, in particular requiring partial separation of the front wheel from the front fork which is a complex maneuver in addition to the pivoting of the rear part. of frame.
  • the invention relates more particularly to a foldable bicycle, or bicycle, the design of which is particularly suitable for all types of use of the bicycle and for all types of bicycles.
  • the invention relates in particular to a folding bicycle which, in its unfolded state for use or rolling, can be used for all types of travel, including for medium or long distances.
  • the design according to the invention relates in particular to a bicycle of normal size with large wheels (road bicycle), and not only to a bicycle with small wheels, the use of which while driving is not very safe and not very comfortable.
  • the invention also relates to a bicycle whose transformation between its unfolded rolling state and its folded storage state - and vice versa - is particularly simple and which can be carried out in a few seconds, without particular physical effort, and well extended without disassembling components. of the bicycle, nor modification of the settings and positions of components such as the saddle or the handlebars.
  • the invention also relates to a bicycle, in particular with large wheels, which - in its folded state - occupies a reduced volume by extending mainly in the vertical direction and whose handling, in particular by making it roll on the ground, is simple and ergonomic.
  • the invention proposes a foldable bicycle, between an unfolded rolling state and a folded state for storing the bicycle, comprising a foldable main frame in two parts comprising:
  • a front part of the frame which, at the front, carries a front axle with a front fork which is pivotable around a geometric fork axis, on which a stable front wheel is rotatably mounted and with which an upper stem is equipped a handlebar, and which, at the rear, has a saddle tube which supports a saddle.
  • a rear part of the frame which, at the rear, carries a rear wheel in rotation and which, at the front, carries either a crankset connected to the rear wheel by a transmission, or a crankset, a motor and its battery for the drive assistance of the crankset, said crankset and the motor being connected to the rear wheel by a transmission, bicycle in which the rear part of the frame is mounted articulated on the front part of the frame about an articulation axis which is orthogonal to the plane of the front part of the frame to allow the pivoting of the rear part of the frame between an angular position for riding the bicycle, and an angular folded position for storing the bicycle, and in which the rear part of the frame carries a first wheel supporting the ground of the bicycle which, in the unfolded state of the bicycle, is arranged in a fixed position, in line with a vertical plane adjacent to the rear edge of the rear wheel and above a horizontal plane passing through the transverse axis of rotation of the rear wheel and which, in its state of storage, rests on the
  • the rear part of the frame carries a second wheel supporting the ground of the bicycle which is carried by a mobile structure which is pivotally mounted on the rear part of the frame between:
  • the bicycle in its folded state, the bicycle is resting on the ground at only three points which are also points or areas of rolling contact on the ground, consisting of the front wheel and the two rollers. According to other characteristics of the invention:
  • the second wheel In the active position of said mobile structure and in the storage state of the bicycle, the second wheel is arranged in a fixed position, in line with a vertical plane adjacent to an edge of the rear wheel; - said mobile structure can be pivotally mounted on the rear part of the frame around a substantially horizontal axis, and in the retracted position of said mobile structure, the second roller can be adjacent to the first roller;
  • the axis of rotation of the rear wheel is located under the front part of the frame and it may be substantially adjacent to the pivot axis of the front fork;
  • the axis of rotation of the crankset and the axis of rotation of the rear wheel are aligned along a straight line substantially parallel to the axis of pivoting of the front fork;
  • the front part of the frame comprises at least a first tube which connects a steering tube to a first point of the seat tube, and the axis of articulation of the rear part of the frame on the front part of the frame is carried by this at least a first tube;
  • the rear part of the frame includes a base tube which connects the bottom bracket to the rotation axis of the rear wheel;
  • the rear part of the frame comprises a front upright which extends generally vertically upwards from the bottom bracket shell and an upper part of which is connected in a locked manner to the seat tube of the front part of the frame;
  • the bicycle has a locking system, in particular an automatic locking system, which - when the bicycle is stored - immobilizes the front part of the frame relative to the rear part of the frame;
  • this locking system is arranged between the front fork and the rear part of the frame so as to, in the storage state of the bicycle, simultaneously immobilize the front part of the frame relative to the rear part of the frame, and the fork front around its the pivot axis of the front fork;
  • the rear part of the frame is anchored to the front part of the frame in at least three anchor points.
  • FIG. 1 is a right side view of an embodiment of a folding bicycle according to the invention which is shown in its rolling state;
  • FIG.2 is a rear three-quarter perspective view of the bicycle shown in Fig ure 1;
  • FIG.3 is a detail view on a larger scale of the front part of the bicycle shown in Figure 2;
  • FIG.4 - Figure 4 is a detail view on a larger scale of the rear part of the bicycle shown in Figure 2;
  • Figure 5 is a detail view on a larger scale and in perspective which shows a front portion of the rear part of the frame for its articulation on a rear portion of the front part of the frame of the bicycle shown to Figures 1 to 4;
  • FIG.6 is a detail view on a larger scale and in perspective which shows a rear portion of the front part of the frame for its articulation on the front portion of the rear part of the frame shown in Figure 5 ;
  • FIG.7 is a large-scale detail view of the two rear and front frame portions shown in Figures 5 and 6 which are in the assembled position in the rolling state of the bicycle shown in Figures 1 and 2;
  • FIG.8 - Figure 8 is a detail view from above which shows the front part of the rear propulsion module to illustrate the orientation of the axis of articulation of the two frame parts;
  • FIG.9 - Figure 9 is an exploded perspective detail view of the two support rollers and structures for mounting them on the bicycle shown in Figures 1 and 2;
  • FIG.1 0 - Figure 10 is a right side view of the bicycle shown in Figures 1 and 2 which is shown in its folded storage condition;
  • FIG.1 1 is a top view of the bicycle in its storage condition shown in Figure 10;
  • FIG.12 - Figure 12 is a front view of the bicycle in its storage condition shown in Figure 10.
  • the longitudinal axis L is oriented from the rear to the front in the direction of travel of the bicycle.
  • FIG. 1 illustrates a bicycle 20 which, in known manner, comprises a rear wheel 22 and a front wheel 23 which, when the bicycle rolls on the ground S in a straight line, each rotates around a horizontal transverse axis A22, A23 respectively.
  • the rear wheel 22 is carried by a rear part of the bicycle 20 represented in FIG. 4 which constitutes a propulsion module 26, while the front wheel 30 is carried by a front part of the bicycle 20 represented in FIG. 3 which constitutes a steering module 28.
  • the rear propulsion module 26 is mounted articulated with respect to the front steering module 28 around an articulation axis A1 which is of generally transverse orientation, that is to say orthogonal to the vertical plane and inal longitud of Figure 1 in which the bicycle 20 extends.
  • the front steering module 28 comprises a front part of the frame 30 which, at the front, carries a front axle.
  • the front part of the frame 30 comprises a steering tube 32 inside which a steering front fork 24 is pivotally mounted in both directions around a fork axis A2.
  • the steering fork 24 carries the front wheel 23 which is mounted for rotation around the axis A23.
  • the steering fork 24 comprises a stem 36 equipped with a handlebar 38 to guide the bicycle by causing the front wheel to pivot around the fork axis A2.
  • the handlebar 38 is here located globally in front of an inclined transverse plane passing through the fork axis A2.
  • the front wheel 23 is said to be stable because its point P1 of contact with the ground S is located longitudinally behind the point P2 of competition between the fork axle A2 and the ground S (see FIG. 1).
  • the front part of the frame 30 comprises a seat tube 40 which extends vertically upwards along an axis A3 which is here inclined from top to bottom, from rear to front and which, limiting, is here substantially parallel to the fork axis A2.
  • the seat tube 40 receives in an adjustable manner a seat post 42 at the top of which is fixed a saddle 44.
  • the front part of the frame 30 here comprises a single frame tube 46, shaped like a beam, which connects the seat tube steering 32 to seat tube 40.
  • the frame tube 46 connects a point vertically midway up the head tube 32 to a lower point on the seat tube 40.
  • the 46 frame tube is angled from top to bottom, front to back. With a conformation of this type of the front part of the frame 30, and as can be seen in Figure 1 1, it is possible to rotate the front wheel 23 by half a turn (one hundred and eighty degrees d angle) around the fork axis A2 in particular q ue the handlebar 38 is then located generally behind the inclined transverse plane passing through the fork axis A2.
  • the frame tube 46 includes a hinge head 48 which is in the form of a cylinder with central axis A1 which is delimited axially by two opposite vertical side faces 50.
  • the cylindrical articulation head 48 and the articulation axis A1 are here arranged below the frame tube 46.
  • the frame tube 46 Above the articulation head 48, the frame tube 46 comprises a cavity 52 for gripping of the two-piece frame in order to fold the bicycle.
  • the cavity 52 is arranged vertically above the axis of articulation A1.
  • the frame tube 46 has a longitudinal handle 54 forming a locking bolt of the front frame part 30 with respect to the rear frame part 60 in the rolling state of the bicycle 20.
  • the handle 54 is mounted articulated on the frame tube 46 around a transverse axis A3. At its rear longitudinal end, the handle 54 is shaped as a double locking hook 56.
  • the handle 54 is elastically biased clockwise around the axis A4, towards its angular locking position.
  • the lower face 47 of the frame tube 46 includes a tapered finger 58 for positioning the front part of the frame 30 which extends axially downwards, here along the axis A3 of the seat tube 40.
  • the rear propulsion module 26 comprises a rear part of the frame 60 which, at the rear, carries the rear wheel 22 in rotation.
  • the rear frame portion 60 includes a pair of base tubes 62 arranged in a fork and extending generally horizontally.
  • the base tubes 62 are connected to a bottom bracket shell 64 and, at their rear end, each is shaped as a bracket 66 for the rotational mounting of the rear wheel 22.
  • the bottom bracket 64 receives in rotation a crankset 68 with two pedals 70 and 72, a plate 74 of which allows the rear wheel 22 to be driven in rotation by means of a transmission not shown in the figures.
  • the rear part of the frame 60 comprises a central front upright 76 which extends generally vertically upwards according to an inclined orientation identical to that of the seat tube 40 which extends vertically upwards according to I ⁇ 3.
  • the front central upright 76 is shaped in its front face with a hollow semi-cylindrical housing 78 complementary to the seat tube 40, the lower part of which is received in this housing.
  • the rear part of the frame 60 comprises a pair of parallel reinforcement tubes 80, also called seatstays, arranged in a fork and which extend in an inclined manner from top to bottom, from front to rear.
  • Each aft end of an angled stay 80 is connected to the aft end of an associated base tube 62.
  • the front end sections 82 of the inclined stays 80 are interconnected by a transverse connecting crosspiece 84.
  • the front central upright 76 extends between the front end sections 82 of the inclined stays 80 and the central part 86, here substantially at mid-height, of the central upright 76, is fixed to the front end sections 82.
  • the rear part of the frame 60 is in the form of a rigid triangular structure (80-62-76) which extends in a vertical longitudinal plane, and whose front central pillar is in the form of a extension of the seat tube 40 of the front part of the frame 30.
  • the front central upright 76 is shaped in its rear face with a hollow semi-cylindrical housing 88 which is able to receive an electric motor and its battery 90 for assistance in driving the pedal set.
  • a plate 92 which comprises a frustoconical housing 96 which receives the frustoconical finger 58 for positioning the front part of the frame 30 which is extends along the axis A3 of the seat tube 40, while the lower face 47 rests on the upper face 85 of the connecting crosspiece 84.
  • the front central upright 76 carries two transversely opposite lugs 98, each of which cooperates with an associated hook 56 of the handle 54.
  • the connecting crosspiece 84 carries an articulation yoke 100 which is complementary to the articulation head 48 and which is mounted articulated on this articulation head 48 around the axis A1.
  • the articulation head 48 is rotatably mounted around the axis A1 with its two opposite vertical side faces 50 received between the faces parallel internals 103 of the two wings 101 of the hinge yoke 100.
  • the articulation clevis 100 is an attached component fixed to the connecting crosspiece.
  • the axis of articulation A1 is not orthogonal to the median vertical and longitudinal plane PVM of the rear frame part 60 in which the rear wheel 22 extends.
  • the axis A1 is inclined relative to the PVM plane.
  • the whole of the rear module 26 pivots in a plane inclined with respect to the vertical and longitudinal plane in which the front part of the frame 30 extends.
  • the rear part of the frame 60 is anchored to the front part of the frame 30 at three anchor points.
  • the figures also show a rear luggage rack 102 which is fixed to the rear part of the frame 60 and which extends horizontally in a plane substantially adjacent to the upper edge of the rear wheel 22.
  • the rack is attached to the rear frame portion 60 by a pair of parallel support arms 104 which here extend from the tabs 66 at an angle from front to back, bottom to top.
  • the right support arm 104 is reinforced with a brace 105 which carries a two-piece structural assembly 106 for mounting two sets of wheels R1 and R2 bearing on the floor of the bicycle 20 in its folded storage state.
  • the structural assembly 106 comprises a fixed structure 108 in the form of a bent plate which is fixed to the reinforcement 105 and which extends in a generally vertical plane which, by way of non-limiting example, is here orthogonal to the axis A1 of the clevis 100 of articulation.
  • the fixed structure 108 carries a first set of twin wheels R1 which are capable of rotating around their common axis AR1 of rotation, to roll on the ground S.
  • the set of twin wheels R1 is mounted loosely in rotation, on the upper and rear free end 110 of the fixed structure 108, around an orientation axis AOR1.
  • the structural assembly 106 comprises a mobile structure 112 in the form of an angled plate. At its upper and rear free end 120, the mobile structure 112 carries a second set of twin wheels R2 which are capable of rotating around their common axis AR2 of rotation, to roll on the ground S.
  • the set of twin wheels R2 is mounted for rotation, on the upper and rear free end 120 of the mobile structure 112, around an orientation axis AOR2.
  • the mobile structure 112 is pivotally mounted on the lower front end 111 of the fixed structure 108, around an axis A6.
  • the mobile structure 112 is shown in its retracted position in which it is adjacent to the fixed structure 108 and in which the two sets of twin wheels R1 and R2 are adjacent and cooperate to avoid any pivoting around axes AOR1 and AOR2.
  • Means are provided, not shown in detail, to lock the mobile structure 112 in its retracted position when the bicycle is in its rolling state.
  • the two structures 108 and 112 are coplanar and the two axes AOR1 and AOR2 are parallel to each other.
  • Means can be provided to lock the mobile structure 112 in its active position when the bicycle is in its folded storage state.
  • the first set of rollers R1 which occupies a fixed position relative to the rear part of the frame 60, is arranged in a rear and upper position relative to the rear wheel 22 substantially at the intersection of a transverse and vertical plane PL1 adjacent to the rear edge of the rear wheel 22 and a longitudinal and horizontal plane PH1 located above the axis A22 of rotation of the rear wheel 22.
  • the procedure for folding the bicycle 20 is as follows.
  • the fork is pivoted through an angle of 180 degrees around the axis A2 by holding, for example, the tube 46 with the left hand. in the cavity 52 and above the handle 54, and the handlebar 38 of the right hand.
  • the bicycle 20 may include a device for temporarily holding the fork 24 in this angular folding position, such as for example a ball system integrated in the steering tube, or any other device or mechanism. suitable for such a function.
  • a device for temporarily holding the fork 24 in this angular folding position such as for example a ball system integrated in the steering tube, or any other device or mechanism. suitable for such a function.
  • the front wheel 23 has “recoiled” inside the frame with a corresponding backward movement from point P1, and the bicycle is still resting on the ground by its two wheels 22 and 23.
  • the handlebar has also “recoiled and is located behind the transverse plane passing through the fork axis A2.
  • the fork 24 is automatically locked on the rear part of the frame 60.
  • the bicycle 20 is then already almost stable in support on the two wheels 22 and 23 and on the casters R1 .
  • the bicycle in its folded storage state is now resting on the ground at only three “points” of support consisting of the front wheel 23 and the two sets of wheels R1 and R2.
  • the complementary function of locking in the folded storage state by means of the complementary locking system makes it possible to ensure better stability of the folded bicycle, in particular when it is rolled on the ground on its three points of support and rolling on the ground, ensuring in particular that it remains bent when it is made to climb stairs.
  • the axis A5 of rotation of the crankset 68 and the axis A22 of rotation of the rear wheel 22 are aligned substantially along a straight line which, without limitation, is here substantially parallel to the axis A2 of the fork 24 (See figure 10).
  • the sets of wheels R1, R2 are each idle around their now vertical axis of orientation AOR1, AOR2, it is then extremely easy to roll the folded bicycle in all directions, including by making it globally pivot on itself. even around a vertical axis.
  • the design also allows the folded bicycle 20 to be maneuvered up or down steps of a staircase.

Abstract

The present invention relates to a foldable bicycle (20), the frame of which comprises a front portion (30) and a rear portion (60) hingedly mounted on the front portion (30) about a joint axis (A1), wherein the rear portion (60) bears a first caster (R1) and a second caster (R2) for supporting the bicycle (20) on the ground, which is borne by a structure (112) which is mounted so as to pivot (A6) on the rear portion of the frame between a retracted position of the second caster (R2) when the bicycle (20) is moving and an active ground-support position of the bicycle (20) in its storage state, and wherein, in the folded storage state of the bicycle, the bicycle comes into contact with the ground at only three points, which are also the points or areas that are in contact with the ground when the bicycle is moving, which points consist of the front wheel (23) and the two casters (R1, R2).

Description

DESCRIPTION DESCRIPTION
TITRE : BICYCLETTE PLIABLE Domaine technique de l’invention TITLE: FOLDABLE BICYCLE Technical field of the invention
La présente invention concerne une bicyclette pliable. The present invention relates to a folding bicycle.
Arrière-plan technique Le document TWM353868U propose une conception d’un mini-vélo pliable comprenant un cadre pliable en deux parties comportant une partie avant de cadre et une partie arrière de cadre qui est montée articulée sur la partie avant de cadre autour d’un axe d’articulation qui est globalement orthogonal au plan de la partie avant de cadre et dans laquelle le porte-bagages de la partie arrière de cadre porte une roulette d’appui au sol de la bicyclette qui, dans son l’état de rangement, est en appui sur le sol, ainsi que les deux roues avant et arrière qui sont adjacentes l’une à l’autre. Technical Background Document TWM353868U proposes a design of a foldable mini-bike comprising a two-part foldable frame comprising a front frame part and a rear frame part which is hingedly mounted on the front frame part around a axis of articulation which is generally orthogonal to the plane of the front part of the frame and in which the luggage carrier of the rear part of the frame carries a wheel supporting the ground of the bicycle which, in its storage state, is resting on the ground, as well as the two front and rear wheels which are adjacent to each other.
Les enseignements de cette conception ne sont pas transposables à un vélo à grandes roues et, de plus, elle aboutit à un encombrement insuffisamment réduit en état replié. The teachings of this design cannot be transposed to a bicycle with large wheels and, moreover, it leads to an insufficiently reduced size in the folded state.
Cette conception ne répond pas non plus aux exigences de facilité de manipu lation entre les états déplié et replié, en nécessitant notamment une désolidarisation partielle de la roue avant de la fourche avant qui est une manœuvre complexe venant s’ajouter au pivotement de la partie arrière de cadre. This design also does not meet the requirements for ease of handling between the unfolded and folded states, in particular requiring partial separation of the front wheel from the front fork which is a complex maneuver in addition to the pivoting of the rear part. of frame.
L’invention concerne plus particulièrement une bicyclette, ou vélo, pliable dont la conception soit particulièrement adaptée à tous les types d’usage de la bicyclette et à tous types de bicyclettes. L’invention concerne notamment une bicyclette pliable qui, dans son état déplié d’utilisation ou de roulage, puisse être utilisée pour tous types de déplacements, y compris pour des moyennes ou long ues distances. A cet effet, la conception selon l’invention concerne notamment une bicyclette de taille normale avec des grandes roues (Vélo de route), et pas seulement une bicyclette à petites roues dont l’usage en roulage est peu sur et peu confortable. L’invention concerne aussi une bicyclette dont la transformation entre son état déplié de roulage et son état replié de rangement - et inversement - soit particulièrement simple et qui puisse être effectuée en quelques secondes, sans efforts physiques particuliers, et bien étendu sans démontage de composants de la bicyclette, ni modification des réglages et des positions de composants tels que la selle ou le guidon. The invention relates more particularly to a foldable bicycle, or bicycle, the design of which is particularly suitable for all types of use of the bicycle and for all types of bicycles. The invention relates in particular to a folding bicycle which, in its unfolded state for use or rolling, can be used for all types of travel, including for medium or long distances. To this end, the design according to the invention relates in particular to a bicycle of normal size with large wheels (road bicycle), and not only to a bicycle with small wheels, the use of which while driving is not very safe and not very comfortable. The invention also relates to a bicycle whose transformation between its unfolded rolling state and its folded storage state - and vice versa - is particularly simple and which can be carried out in a few seconds, without particular physical effort, and well extended without disassembling components. of the bicycle, nor modification of the settings and positions of components such as the saddle or the handlebars.
L’invention concerne encore une bicyclette, notamment à grandes roues, qui - dans son état replié- occupe un volume réduit en s’étendant principalement selon la direction verticale et dont la manipulation, notamment en la faisant rouler sur le sol, soit simple et ergonomique. The invention also relates to a bicycle, in particular with large wheels, which - in its folded state - occupies a reduced volume by extending mainly in the vertical direction and whose handling, in particular by making it roll on the ground, is simple and ergonomic.
Résumé de l’invention Summary of the invention
L’invention propose une bicyclette pliable, entre un état déplié de roulage et un état replié de rangement de la bicyclette, comprenant un cadre principal pliable en deux parties comportant : The invention proposes a foldable bicycle, between an unfolded rolling state and a folded state for storing the bicycle, comprising a foldable main frame in two parts comprising:
- une partie avant de cadre qui, à l’avant, porte un train avant avec une fourche avant qui est pivotante autour d’un axe géométrique de fourche, sur laquelle une roue avant stable est montée à rotation et dont une potence supérieure est équipée d’un guidon, et qui, à l’arrière, comporte un tube de selle qui supporte une selle. - a front part of the frame which, at the front, carries a front axle with a front fork which is pivotable around a geometric fork axis, on which a stable front wheel is rotatably mounted and with which an upper stem is equipped a handlebar, and which, at the rear, has a saddle tube which supports a saddle.
- une partie arrière de cadre qui, à l’arrière, porte à rotation une roue arrière et qui, à l’avant, porte soit un pédalier relié à la roue arrière par une transmission, soit un pédalier, un moteur et sa batterie pour l’assistance à l’entraînement du pédalier, ledit pédalier et le moteur étant reliés à la roue arrière par une transmission, bicyclette dans laquelle la partie arrière de cadre est montée articulée sur la partie avant de cadre autour d’un axe d’articulation qui est orthogonal au plan de la partie avant de cadre pour permettre le pivotement de la partie arrière de cadre entre une position angulaire de roulage de la bicyclette, et une position angulaire repliée de rangement de la bicyclette, et dans laquelle la partie arrière de cadre porte une première roulette d’appui au sol de la bicyclette qui, dans l’état déplié de la bicyclette, est agencée dans une position fixe, au droit d’un plan vertical adjacent au bord arrière de la roue arrière et au-dessus d’un plan horizontal passant par l’axe transversal de rotation de la roue arrière et qui, dans son état de rangement, est en appui sur le sol, bicyclette caractérisée en ce que : - a rear part of the frame which, at the rear, carries a rear wheel in rotation and which, at the front, carries either a crankset connected to the rear wheel by a transmission, or a crankset, a motor and its battery for the drive assistance of the crankset, said crankset and the motor being connected to the rear wheel by a transmission, bicycle in which the rear part of the frame is mounted articulated on the front part of the frame about an articulation axis which is orthogonal to the plane of the front part of the frame to allow the pivoting of the rear part of the frame between an angular position for riding the bicycle, and an angular folded position for storing the bicycle, and in which the rear part of the frame carries a first wheel supporting the ground of the bicycle which, in the unfolded state of the bicycle, is arranged in a fixed position, in line with a vertical plane adjacent to the rear edge of the rear wheel and above a horizontal plane passing through the transverse axis of rotation of the rear wheel and which, in its state of storage, rests on the ground, bicycle characterized in that:
- la partie arrière de cadre porte une deuxième roulette d’appui au sol de la bicyclette qui est portée par une structure mobile qui est montée pivotante sur la partie arrière de cadre entre : - the rear part of the frame carries a second wheel supporting the ground of the bicycle which is carried by a mobile structure which is pivotally mounted on the rear part of the frame between:
- une position escamotée de la deuxième roulette lors du roulage de la bicyclette ; - A retracted position of the second wheel when rolling the bicycle;
- et une position active d’appui sur le sol de la bicyclette dans son état de rangement ; et en ce que, dans l’état replié de rangement de la bicyclette : - and an active support position on the ground of the bicycle in its storage state; and in that, in the folded storage state of the bicycle:
* la première roulette est en appui sur le sol ; * la deuxième roulette est en appui sur le sol ; * the first wheel is resting on the ground; * the second wheel is resting on the ground;
* la roue avant est en appui sur le sol. * the front wheel is resting on the ground.
Ainsi, dans son état replié, la bicyclette est en appui sur le sol en seulement trois points qui sont aussi des points ou zones de contact roulant sur le sol, constitués par la roue avant et les deux roulettes. Selon d’autres caractéristiques de l’invention : Thus, in its folded state, the bicycle is resting on the ground at only three points which are also points or areas of rolling contact on the ground, consisting of the front wheel and the two rollers. According to other characteristics of the invention:
- dans la position active de ladite structure mobile et dans l'état de rangement de la bicyclette, la deuxième roulette est agencée dans une position fixe, au droit d'un plan vertical adjacent à un bord de la roue arrière ; - ladite structure mobile peut être montée pivotante sur la partie arrière de cadre autour d’un axe sensiblement horizontal, et en position escamotée de ladite structure mobile, la deuxième roulette peut être adjacente à la première roulette ; - In the active position of said mobile structure and in the storage state of the bicycle, the second wheel is arranged in a fixed position, in line with a vertical plane adjacent to an edge of the rear wheel; - said mobile structure can be pivotally mounted on the rear part of the frame around a substantially horizontal axis, and in the retracted position of said mobile structure, the second roller can be adjacent to the first roller;
- dans l’état de rangement de la bicyclette, l’axe de rotation de la roue arrière est situé sous la partie avant de cadre et il peut être sensiblement adjacent à l’axe de pivotement de la fourche avant ;- in the storage state of the bicycle, the axis of rotation of the rear wheel is located under the front part of the frame and it may be substantially adjacent to the pivot axis of the front fork;
- dans l’état de rangement de la bicyclette : - in the storage condition of the bicycle:
-- l’axe de rotation du pédalier et l’axe de rotation de roue arrière sont alignés selon une droite sensiblement parallèle à l’axe de pivotement de la fourche avant ; -- the axis of rotation of the crankset and the axis of rotation of the rear wheel are aligned along a straight line substantially parallel to the axis of pivoting of the front fork;
-- l’ensemble des composants de la bicyclette est situé à l’intérieur d’un volume délimité par deux plans verticaux et transversaux qui sont adjacents au bords opposés de la roue arrière, et notamment qui peuvent être espacés longitudinalement d’une distance sensiblement égale au diamètre de la roue arrière ; -- la fourche avant est pivotée d’environ un demi-tour par rapport à son orientation angulaire de roulage en ligne droite, et en ce que le guidon est situé à l’intérieur dudit volume ; -- all components of the bicycle are located inside a volume delimited by two vertical and transverse planes which are adjacent to the opposite edges of the rear wheel, and in particular which can be spaced apart longitudinally by a distance substantially equal to the diameter of the rear wheel; -- the front fork is pivoted about half a turn relative to its angular orientation for rolling in a straight line, and in that the handlebar is located inside said volume;
- la partie avant de cadre comporte au moins un premier tube qui relie un tube de direction à un premier point du tube de selle, et l’axe d’articulation de la partie arrière de cadre sur la partie avant de cadre est porté par ce au moins un premier tube ; - the front part of the frame comprises at least a first tube which connects a steering tube to a first point of the seat tube, and the axis of articulation of the rear part of the frame on the front part of the frame is carried by this at least a first tube;
- la partie arrière de cadre comporte un tube de base qui relie la boîte de pédalier à l’axe de rotation de la roue arrière ; - the rear part of the frame includes a base tube which connects the bottom bracket to the rotation axis of the rear wheel;
- la partie arrière de cadre comporte un montant avant qui s’étend globalement verticalement vers le haut à partir de la boîte de pédalier et dont une partie supérieure est reliée de manière verrouillée au tube de selle de la partie avant de cadre ; - the rear part of the frame comprises a front upright which extends generally vertically upwards from the bottom bracket shell and an upper part of which is connected in a locked manner to the seat tube of the front part of the frame;
- la bicyclette comporte un système de verrouillage, notamment de verrouillage automatique, qui - dans l’état de rangement de la bicyclette - immobilise la partie avant de cadre par rapport à la partie arrière de cadre ; - the bicycle has a locking system, in particular an automatic locking system, which - when the bicycle is stored - immobilizes the front part of the frame relative to the rear part of the frame;
- ce système de verrouillage est agencé entre la fourche avant et la partie arrière de cadre de manière à, dans l’état de rangement de la bicyclette, immobiliser simultanément la partie avant de cadre par rapport à la partie arrière de cadre, et la fourche avant autour de son l’axe de pivotement de la fourche avant ; - this locking system is arranged between the front fork and the rear part of the frame so as to, in the storage state of the bicycle, simultaneously immobilize the front part of the frame relative to the rear part of the frame, and the fork front around its the pivot axis of the front fork;
- en état déplié de roulage, la partie arrière de cadre de cadre est ancrée sur la partie avant de cadre en au moins trois points d’ancrage. Brève descriptions des figures - in the unfolded rolling state, the rear part of the frame is anchored to the front part of the frame in at least three anchor points. Brief descriptions of figures
D'autres caractéristiques et avantages de l'invention apparaîtront au cours de la lecture de la description détaillée qui va suivre pour la compréhension de laquelle on se reportera aux dessins annexés dans lesquels : [F ig .1 ] - la figure 1 est une vue latérale de droite d’un exemple de réalisation d’une bicyclette pliable selon l’invention qui est représentée dans son état de roulage ; Other characteristics and advantages of the invention will appear during the reading of the detailed description which will follow for the understanding of which reference will be made to the appended drawings in which: [F ig .1] - Figure 1 is a right side view of an embodiment of a folding bicycle according to the invention which is shown in its rolling state;
[Fig.2] - la figure 2 est une vue en perspective de trois-quarts arrière de la bicyclette représentée à la fig ure 1 ; [Fig.2] - Figure 2 is a rear three-quarter perspective view of the bicycle shown in Fig ure 1;
[Fig.3] - la figure 3 est une vue de détail à plus grande échelle de la partie avant de la bicyclette représentée à la figure 2 ; [Fig.3] - Figure 3 is a detail view on a larger scale of the front part of the bicycle shown in Figure 2;
[Fig.4] - la figure 4 est une vue de détail à plus grande échelle de la partie arrière de la bicyclette représentée à la figure 2 ; [Fig.5] - la figure 5 est une vue de détail à plus grande échelle et en perspective qui représente une portion avant de la partie arrière de cadre pour son articulation sur u ne portion arrière de la partie avant de cadre de la bicyclette représentée aux figures 1 à 4 ; [Fig.4] - Figure 4 is a detail view on a larger scale of the rear part of the bicycle shown in Figure 2; [Fig.5] - Figure 5 is a detail view on a larger scale and in perspective which shows a front portion of the rear part of the frame for its articulation on a rear portion of the front part of the frame of the bicycle shown to Figures 1 to 4;
[Fig.6] - la figure 6 est une vue de détail à plus grande échelle et en perspective qui représente une portion arrière de la partie avant de cadre pour son articulation sur la portion avant de la partie arrière de cadre représentée à la figure 5 ; [Fig.6] - Figure 6 is a detail view on a larger scale and in perspective which shows a rear portion of the front part of the frame for its articulation on the front portion of the rear part of the frame shown in Figure 5 ;
[Fig.7] - la figure 7 est une vue de détail à grande échelle des deux portions de cadre arrière et avant représentées aux figures 5 et 6 qui sont en position assemblée dans l’état de roulage de la bicyclette représenté aux figures 1 et 2 ; [Fig.7] - Figure 7 is a large-scale detail view of the two rear and front frame portions shown in Figures 5 and 6 which are in the assembled position in the rolling state of the bicycle shown in Figures 1 and 2;
[Fig.8] - la figure 8 est une vue de détail de dessus qui représente la partie avant du module arrière de propulsion pour illustrer l’orientation de l’axe d’articulation des deux parties de cadre ; [Fig.9] - la figure 9 est une vue de détail en perspective éclatée des deux roulettes d’appui et des structures pour leur montage sur la bicyclette représentée aux figures 1 et 2 ; [Fig.8] - Figure 8 is a detail view from above which shows the front part of the rear propulsion module to illustrate the orientation of the axis of articulation of the two frame parts; [Fig.9] - Figure 9 is an exploded perspective detail view of the two support rollers and structures for mounting them on the bicycle shown in Figures 1 and 2;
[Fig.1 0] - la figure 10 est une vue latérale de droite de la bicyclette représentée aux figures 1 et 2 qui est représentée dans son état replié de rangement ; [Fig.1 0] - Figure 10 is a right side view of the bicycle shown in Figures 1 and 2 which is shown in its folded storage condition;
[Fig.1 1 ] - la figure 1 1 est une vue de dessus de la bicyclette dans son état de rangement représenté à la figure 10 ; [Fig.1 1] - Figure 1 1 is a top view of the bicycle in its storage condition shown in Figure 10;
[Fig.12] - la figure 12 est une vue de devant de la bicyclette dans son état de rangement représenté à la figure 10. [Fig.12] - Figure 12 is a front view of the bicycle in its storage condition shown in Figure 10.
Description détaillée de l'invention Pour la description de l'invention et la compréhension des revendications, on adoptera à titre non limitatif et en référence à la gravité terrestre les orientations verticale, longitudinale et transversale selon le repère V, L, T indiqué aux figures dont les axes longitudinal L et transversal T s’étendent dans un plan horizontal. Detailed description of the invention For the description of the invention and the understanding of the claims, the vertical, longitudinal and transverse orientations according to the reference V, L, T indicated in the figures of which the longitudinal axes L and transverse T extend in a horizontal plane.
Par convention, l’axe longitudinal L est orienté de l’arrière vers l’avant dans le sens du roulage de la bicyclette. By convention, the longitudinal axis L is oriented from the rear to the front in the direction of travel of the bicycle.
Dans la description qui va suivre, des éléments identiques, similaires ou analogues seront désignés par les mêmes chiffres de référence.In the following description, identical, similar or analogous elements will be designated by the same reference numerals.
La figure 1 illustre une bicyclette 20 qu i, de manière connue, comporte une roue arrière 22 et une roue avant 23 qui, lorsque la bicyclette roule sur le sol S en ligne droite, tourne chacune autour d ’un axe transversal horizontal A22, A23 respectivement. La roue arrière 22 est portée par une partie arrière de la bicyclette 20 représentée à la figure 4 q ui constitue un module de propulsion 26, tandis que la roue avant 30 est portée par une partie avant de la bicyclette 20 représentée à la fig ure 3 qui constitue un module de direction 28. Le module arrière de propulsion 26 est montée articulé par rapport au module avant de direction 28 autour d’un axe d’articulation A1 qui est d’orientation globalement transversale, c’est-à-dire orthogonal au plan vertical et longitud inal de la figure 1 dans lequel s’étends la bicyclette 20. Le module avant de direction 28 comporte une partie avant de cadre 30 qui, à l’avant, porte un train avant. FIG. 1 illustrates a bicycle 20 which, in known manner, comprises a rear wheel 22 and a front wheel 23 which, when the bicycle rolls on the ground S in a straight line, each rotates around a horizontal transverse axis A22, A23 respectively. The rear wheel 22 is carried by a rear part of the bicycle 20 represented in FIG. 4 which constitutes a propulsion module 26, while the front wheel 30 is carried by a front part of the bicycle 20 represented in FIG. 3 which constitutes a steering module 28. The rear propulsion module 26 is mounted articulated with respect to the front steering module 28 around an articulation axis A1 which is of generally transverse orientation, that is to say orthogonal to the vertical plane and inal longitud of Figure 1 in which the bicycle 20 extends. The front steering module 28 comprises a front part of the frame 30 which, at the front, carries a front axle.
A cet effet, la partie avant de cadre 30 comporte un tube 32 de direction à l’intérieur duquel une fourche avant de direction 24 est montée pivotante dans les deux sens autour d’un axe de fourche A2. A sa partie inférieure, la fourche de direction 24 porte la roue avant 23 qui est montée à rotation autour de l’axe A23. To this end, the front part of the frame 30 comprises a steering tube 32 inside which a steering front fork 24 is pivotally mounted in both directions around a fork axis A2. At its lower part, the steering fork 24 carries the front wheel 23 which is mounted for rotation around the axis A23.
A son extrémité supérieure, la fourche de direction 24 comporte une potence 36 équipée d’un guidon 38 pour guider la bicyclette en faisant pivoter la roue avant autour de l’axe de fourche A2. Le guidon 38 est ici situé globalement en avant d’un plan transversal incliné passant par l’axe de fourche A2. La roue avant 23 est d ite stable car son point P1 de contact avec le sol S est situé longitudinalement en arrière du point P2 de concours entre l’axe de fourche A2 et le sol S (Voir figure 1 ) . At its upper end, the steering fork 24 comprises a stem 36 equipped with a handlebar 38 to guide the bicycle by causing the front wheel to pivot around the fork axis A2. The handlebar 38 is here located globally in front of an inclined transverse plane passing through the fork axis A2. The front wheel 23 is said to be stable because its point P1 of contact with the ground S is located longitudinally behind the point P2 of competition between the fork axle A2 and the ground S (see FIG. 1).
A sa partie arrière, la partie avant de cadre 30 comporte un tube de selle 40 qui s’étend verticalement vers le haut selon un axe A3 qui est ici incliné du haut vers le bas, d’arrière en avant et qui, à titre non limitatif, est ici sensiblement parallèle à l’axe de fourche A2. At its rear part, the front part of the frame 30 comprises a seat tube 40 which extends vertically upwards along an axis A3 which is here inclined from top to bottom, from rear to front and which, limiting, is here substantially parallel to the fork axis A2.
Le tube de selle 40 reçoit de manière réglable une tige de selle 42 au sommet de laquelle est fixée une selle 44. La partie avant de cadre 30 comporte ici un seul tube 46 de cad re, conformé en une poutre, qui relie le tube de direction 32 au tube de selle 40. The seat tube 40 receives in an adjustable manner a seat post 42 at the top of which is fixed a saddle 44. The front part of the frame 30 here comprises a single frame tube 46, shaped like a beam, which connects the seat tube steering 32 to seat tube 40.
Comme on peut le voir à la figure 1 , le tube de cadre 46 relie un point verticalement à mi-hauteur du tube de direction 32 à un point inférieur du tube de selle 40. As can be seen in Figure 1, the frame tube 46 connects a point vertically midway up the head tube 32 to a lower point on the seat tube 40.
Le tube de cadre 46 est incliné du haut vers le bas, d’avant en arrière. Grâce à une conformation de ce type de la partie avant de cadre 30, et comme on peut le voir à la figure 1 1 , il est possible de faire pivoter la roue avant 23 d’un demi-tour (cent quatre-vingt degrés d’angle) autour de l’axe de fourche A2 de manière notamment q ue le guidon 38 soit alors situé globalement en arrière du plan transversal incliné passant par l’axe de fourche A2. The 46 frame tube is angled from top to bottom, front to back. With a conformation of this type of the front part of the frame 30, and as can be seen in Figure 1 1, it is possible to rotate the front wheel 23 by half a turn (one hundred and eighty degrees d angle) around the fork axis A2 in particular q ue the handlebar 38 is then located generally behind the inclined transverse plane passing through the fork axis A2.
Comme cela est représenté en détail aux figures 3, 7 et 1 1 , au voisinage de son extrémité arrière et ici à proximité du tube de selle 40, le tube de cadre 46 comporte une tête d’articulation 48 qui se présente sous la forme d’un cylindre d’axe central A1 qui est délimité axialement par deux faces latérales verticales opposées 50. As shown in detail in Figures 3, 7 and 1 1, near its rear end and here near the seat tube 40, the frame tube 46 includes a hinge head 48 which is in the form of a cylinder with central axis A1 which is delimited axially by two opposite vertical side faces 50.
La tête cylindrique d’articulation 48 et l’axe d’articulation A1 sont ici agencés en-dessous du tu be de cadre 46. Au-dessus de la tête d ’articulation 48, le tube de cadre 46 comporte une cavité 52 de préhension du cadre en deux parties en vue de replier la bicyclette. The cylindrical articulation head 48 and the articulation axis A1 are here arranged below the frame tube 46. Above the articulation head 48, the frame tube 46 comprises a cavity 52 for gripping of the two-piece frame in order to fold the bicycle.
La cavité 52 est agencée verticalement au-dessus de l’axe d’articulation A1 . A sa partie supérieure au-dessus de la cavité 52, le tube de cadre 46 comporte une poigne longitudinale 54 formant verrou de blocage de la partie avant de cadre 30 par rapport à la partie arrière de cadre 60 dans l’état de roulage de la bicyclette 20. The cavity 52 is arranged vertically above the axis of articulation A1. At its upper part above the cavity 52, the frame tube 46 has a longitudinal handle 54 forming a locking bolt of the front frame part 30 with respect to the rear frame part 60 in the rolling state of the bicycle 20.
A son extrémité longitudinale avant, la poignée 54 est montée articulée sur le tube de cadre 46 autour d ’un axe transversal A3. A son extrémité longitudinale arrière, la poignée 54 est conformée en un crochet double 56 de blocage. At its front longitudinal end, the handle 54 is mounted articulated on the frame tube 46 around a transverse axis A3. At its rear longitudinal end, the handle 54 is shaped as a double locking hook 56.
En considérant la figure 7, la poignée 54 est rappelée élastiquement dans le sens horaire autour de l’axe A4, vers sa position angulaire de blocage. A son extrémité arrière, la face inférieure 47 du tube de cadre 46 comporte un doigt tronconique 58 de positionnement de la partie avant de cadre 30 qui s’étend axialement vers le bas, ici selon l’axe A3 du tube de selle 40. Considering Figure 7, the handle 54 is elastically biased clockwise around the axis A4, towards its angular locking position. At its rear end, the lower face 47 of the frame tube 46 includes a tapered finger 58 for positioning the front part of the frame 30 which extends axially downwards, here along the axis A3 of the seat tube 40.
Le module arrière 26 de propulsion comporte une partie arrière de cadre 60 qui, à l’arrière, porte à rotation la roue arrière 22. The rear propulsion module 26 comprises a rear part of the frame 60 which, at the rear, carries the rear wheel 22 in rotation.
La partie arrière de cadre 60 comporte une paire de tubes de base 62 agencés en une fourche et qui s’étendent globalement horizontalement. The rear frame portion 60 includes a pair of base tubes 62 arranged in a fork and extending generally horizontally.
A leur extrémité avant, les tubes de base 62 sont reliés à une boîte de pédalier 64 et, à leur extrémité arrière, chacun est conformé en une patte 66 pour le montage à rotation de la roue arrière 22. At their front end, the base tubes 62 are connected to a bottom bracket shell 64 and, at their rear end, each is shaped as a bracket 66 for the rotational mounting of the rear wheel 22.
La boîte de pédalier 64, de forme générale tubulaire et d’axe transversal central A5, reçoit à rotation un pédalier 68 à deux pédales 70 et 72 dont un plateau 74 permet l’entraînement en rotation de la roue arrière 22 au moyen d’une transmission non représentée aux figures. The bottom bracket 64, of generally tubular shape and central transverse axis A5, receives in rotation a crankset 68 with two pedals 70 and 72, a plate 74 of which allows the rear wheel 22 to be driven in rotation by means of a transmission not shown in the figures.
A partir de la boîte de pédalier 64, la partie arrière de cadre 60 comporte un montant central avant 76 qui s’étend globalement verticalement vers le haut selon une orientation inclinée identique à celle du tube de selle 40 qui s’étend verticalement vers le haut selon IΆ3. Starting from the bottom bracket shell 64, the rear part of the frame 60 comprises a central front upright 76 which extends generally vertically upwards according to an inclined orientation identical to that of the seat tube 40 which extends vertically upwards according to IΆ3.
Le montant central avant 76 est conformé dans sa face avant avec un logement semi-cylindrique creux 78 complémentaire du tube de selle 40 dont la partie inférieure est reçue dans ce logement. La partie arrière de cadre 60 comporte une paire de tubes parallèles de renfort 80, aussi appelés haubans, agencés en une fourche et qui s’étendent de manière inclinée du haut vers le bas, d’avant en arrière. Chaque extrémité arrière d’un hauban incliné 80 est reliée à l’extrémité arrière d’u n tube de base associé 62. The front central upright 76 is shaped in its front face with a hollow semi-cylindrical housing 78 complementary to the seat tube 40, the lower part of which is received in this housing. The rear part of the frame 60 comprises a pair of parallel reinforcement tubes 80, also called seatstays, arranged in a fork and which extend in an inclined manner from top to bottom, from front to rear. Each aft end of an angled stay 80 is connected to the aft end of an associated base tube 62.
Les tronçons d’extrémité avant 82 des haubans inclinés 80 sont reliées entre elles par une traverse transversale de liaison 84. The front end sections 82 of the inclined stays 80 are interconnected by a transverse connecting crosspiece 84.
Le montant central avant 76 s’étend entre les tronçons d’extrémité avant 82 des haubans inclinés 80 et la partie centrale 86, ici sensiblement à mi-hauteur, du montant central 76, est fixée aux tronçons d’extrémité avant 82. The front central upright 76 extends between the front end sections 82 of the inclined stays 80 and the central part 86, here substantially at mid-height, of the central upright 76, is fixed to the front end sections 82.
Ainsi, la partie arrière de cadre 60 se présente sous la forme d ’une structure rigide triangulaire (80-62-76) qui s’étend dans un plan longitudinal vertical, et dont le montant central avant se présente sous la forme d’un prolongement du tube de selle 40 de la partie avant de cadre 30. Thus, the rear part of the frame 60 is in the form of a rigid triangular structure (80-62-76) which extends in a vertical longitudinal plane, and whose front central pillar is in the form of a extension of the seat tube 40 of the front part of the frame 30.
Le montant central avant 76 est conformé dans sa face arrière avec un logement semi-cylindrique creux 88 qui est apte à recevoir un moteur électrique et sa batterie 90 pour l’assistance à l’entraînement du pédalier. The front central upright 76 is shaped in its rear face with a hollow semi-cylindrical housing 88 which is able to receive an electric motor and its battery 90 for assistance in driving the pedal set.
Entre la traverse de liaison 84 et la portion centrale 86 en regard d u montant central avant 76, il est prévu une platine 92 qui comporte un logement tronconique 96 qui reçoit le doigt troncon ique 58 de positionnement de la partie avant de cadre 30 qui s’étend selon l’axe A3 du tube de selle 40, tandis que la face inférieure 47 est en appui sur la face supérieure 85 de la traverse de liaison 84. Between the connecting crosspiece 84 and the central portion 86 opposite the front central upright 76, there is provided a plate 92 which comprises a frustoconical housing 96 which receives the frustoconical finger 58 for positioning the front part of the frame 30 which is extends along the axis A3 of the seat tube 40, while the lower face 47 rests on the upper face 85 of the connecting crosspiece 84.
Au-dessus des tronçons d’extrémité avant 82 des haubans inclinés 80, le montant central avant 76 porte deux ergots transversalement opposés 98 dont chacun coopère avec un crochet associé 56 de la poignée 54. Above the front end sections 82 of the inclined stays 80, the front central upright 76 carries two transversely opposite lugs 98, each of which cooperates with an associated hook 56 of the handle 54.
Comme cela est représenté en détail aux figures 4, 5 et 7, la traverse de liaison 84 porte une chape 100 d’articulation q ui est complémentaire de la tête d’articulation 48 et qui est montée articu lée sur cette tête d’articulation 48 autour de l’axe A1 . La tête d’articulation 48 est montée tournante autour de l’axe A1 avec ses deux faces latérales verticales opposées 50 reçues entre les faces internes parallèles 103 des deux ailes 101 de la chape d’articulation 100. As shown in detail in Figures 4, 5 and 7, the connecting crosspiece 84 carries an articulation yoke 100 which is complementary to the articulation head 48 and which is mounted articulated on this articulation head 48 around the axis A1. The articulation head 48 is rotatably mounted around the axis A1 with its two opposite vertical side faces 50 received between the faces parallel internals 103 of the two wings 101 of the hinge yoke 100.
La chape d’articulation 100 est un composant rapporté et fixé sur la traverse de liaison. L’axe d’articulation A1 n’est pas orthogonal au plan vertical et longitudinal médian PVM de la partie arrière de cadre 60 dans lequel s’étend la roue arrière 22. The articulation clevis 100 is an attached component fixed to the connecting crosspiece. The axis of articulation A1 is not orthogonal to the median vertical and longitudinal plane PVM of the rear frame part 60 in which the rear wheel 22 extends.
Comme on peut le voir notamment à la figure 8, pour permettre le pliage du cadre par rotation de la partie arrière de cadre 60 par rapport à la partie avant de cadre 30, autour de l’axe géométrique A1 , l’axe A1 est incliné par rapport au plan PVM. As can be seen in particular in Figure 8, to allow folding of the frame by rotation of the rear part of the frame 60 relative to the front part of the frame 30, around the geometric axis A1, the axis A1 is inclined relative to the PVM plane.
Ainsi, lors de sa rotation autour de l’axe A1 , l’ensemble du module arrière 26 pivote dans un plan incliné par rapport au plan verticale et longitudinal dans lequel s’étend la partie avant de cadre 30. Dans l’état déplié de roulage de la bicyclette 20, la partie arrière de cadre 60 est ancrée sur la partie avant de cadre 30 en trois points d’ancrage. Thus, during its rotation around the axis A1, the whole of the rear module 26 pivots in a plane inclined with respect to the vertical and longitudinal plane in which the front part of the frame 30 extends. rolling of the bicycle 20, the rear part of the frame 60 is anchored to the front part of the frame 30 at three anchor points.
Ces trois points d’ancrage comportent : These three anchor points include:
- l’axe d’articulation de la partie arrière de cadre 60 sur la partie avant de cadre 30, - the axis of articulation of the rear part of frame 60 on the front part of frame 30,
- l’appui entre le logement tronconique 96 de la partie arrière de cadre 60 et le doigt tronconique 58 de positionnement de la partie avant de cadre 30, - the support between the frustoconical housing 96 of the rear frame part 60 and the frustoconical finger 58 for positioning the front frame part 30,
- le point d’accrochage constitué par la coopération des ergots 98 de la partie arrière de cadre 60 avec les crochets associés 56 de la poignée- the attachment point constituted by the cooperation of the lugs 98 of the rear part of the frame 60 with the associated hooks 56 of the handle
54 de la partie avant de cadre 30. 54 of the front part of frame 30.
A titre d’exemple non limitatif, on a aussi représenté aux figures un porte-bagages arrière 102 qui est fixé à la partie arrière de cadre 60 et qui s’étend horizontalement dans un plan sensiblement adjacent au bord supérieur de la roue arrière 22. By way of non-limiting example, the figures also show a rear luggage rack 102 which is fixed to the rear part of the frame 60 and which extends horizontally in a plane substantially adjacent to the upper edge of the rear wheel 22.
Le porte-bagages est fixé à la partie arrière de cadre 60 par une paire de bras parallèles de support 104 qui s’étendent ici depuis les pattes 66 de manière inclinée d’avant en arrière, de bas en haut. The rack is attached to the rear frame portion 60 by a pair of parallel support arms 104 which here extend from the tabs 66 at an angle from front to back, bottom to top.
Le bras de support 104 de droite est renforcé par un renfort 105 qui porte un ensemble structurel 106 en deux parties pour le montage de deux jeux de roulettes R1 et R2 d’appui sur le sol de la bicyclette 20 dans son état replié de rangement. The right support arm 104 is reinforced with a brace 105 which carries a two-piece structural assembly 106 for mounting two sets of wheels R1 and R2 bearing on the floor of the bicycle 20 in its folded storage state.
L’ensemble structurel 106 comporte une structure fixe 108 en forme de plaque coudée qui est fixé au renfort 105 et qui s’étend dans un plan globalement vertical qui, à titre d’exemple non limitatif, est ici orthogonal à l’axe A1 de la chape 100 d’articulation. The structural assembly 106 comprises a fixed structure 108 in the form of a bent plate which is fixed to the reinforcement 105 and which extends in a generally vertical plane which, by way of non-limiting example, is here orthogonal to the axis A1 of the clevis 100 of articulation.
A son extrémité libre supérieure et arrière 1 10, la structure fixe 108 porte un premier jeu de roulettes jumelles R1 qui sont aptes à tourner autour de leur axe commun AR1 de rotation , pour rouler sur le sol S. Le jeu de roulettes jumelles R1 est monté fou à rotation, sur l’extrémité libre supérieure et arrière 1 10 de la structure fixe 108, autour d’un axe d’orientation AOR1 . At its upper and rear free end 110, the fixed structure 108 carries a first set of twin wheels R1 which are capable of rotating around their common axis AR1 of rotation, to roll on the ground S. The set of twin wheels R1 is mounted loosely in rotation, on the upper and rear free end 110 of the fixed structure 108, around an orientation axis AOR1.
L’ensemble structurel 106 comporte une structure mobile 1 12 en forme de plaque coudée. A son extrémité libre supérieure et arrière 120, la structure mobile 1 12 porte un deuxième jeu de roulettes jumelles R2 qui sont aptes à tourner autour de leur axe commun AR2 de rotation , pour rouler sur le sol S. The structural assembly 106 comprises a mobile structure 112 in the form of an angled plate. At its upper and rear free end 120, the mobile structure 112 carries a second set of twin wheels R2 which are capable of rotating around their common axis AR2 of rotation, to roll on the ground S.
Le jeu de roulettes jumelles R2 est monté fou à rotation, sur l’extrémité libre supérieure et arrière 120 de la structure mobile 1 12, autour d’un axe d’orientation AOR2. The set of twin wheels R2 is mounted for rotation, on the upper and rear free end 120 of the mobile structure 112, around an orientation axis AOR2.
A son extrémité inférieure avant 1 14, la structure mobile 1 12 est montée pivotante sur l’extrémité inférieure avant 1 1 1 de la structure fixe 108, autour d ’un axe A6. Aux figures 1 , 2 et 4, la structure mobile 1 12 est représentée dans sa position escamotée dans laquelle elle est adjacente à la structure fixe 108 et dans laquelle les deux jeux de roulettes jumelles R1 et R2 sont adjacents et coopèrent pour éviter tout pivotement autour des axes AOR1 et AOR2. II est prévu des moyens non représentés en détail pour verrouiller la structure mobile 1 12 dans sa position escamotée lorsque la bicyclette est dans son état de roulage. At its lower front end 114, the mobile structure 112 is pivotally mounted on the lower front end 111 of the fixed structure 108, around an axis A6. In Figures 1, 2 and 4, the mobile structure 112 is shown in its retracted position in which it is adjacent to the fixed structure 108 and in which the two sets of twin wheels R1 and R2 are adjacent and cooperate to avoid any pivoting around axes AOR1 and AOR2. Means are provided, not shown in detail, to lock the mobile structure 112 in its retracted position when the bicycle is in its rolling state.
A partir de la position escamotée, il est possible de faire pivoter la structure mobile 1 12, et donc le deuxième jeu de rou lettes R2, autour de l’axe A6 pour l’amener dans sa position dite active d’appui sur le sol de la bicyclette dans son état de rangement qui est notamment illustrée aux figures 10 à 12. From the retracted position, it is possible to rotate the mobile structure 112, and therefore the second set of wheels R2, around the axis A6 to bring it into its so-called active position of support on the ground of the bicycle in its storage state which is illustrated in particular in Figures 10 to 12.
Dans cette position active, les deux structures 108 et 1 12 sont coplanaires et les deux axes AOR1 et AOR2 sont parallèles l’un à l’autre. In this active position, the two structures 108 and 112 are coplanar and the two axes AOR1 and AOR2 are parallel to each other.
On peut prévoir des moyens non représentés en détail pour verrouiller la structure mobile 112 dans sa position active lorsque la bicyclette est dans son état replié de rangement. Means, not shown in detail, can be provided to lock the mobile structure 112 in its active position when the bicycle is in its folded storage state.
Comme on peut le voir à la figure 1 , le premier jeu de roulettes R1 , qui occupe une position fixe par rapport à la partie arrière de cadre 60, est agencé dans une position arrière et supérieure par rapport à la roue arrière 22 sensiblement à l’intersection d’un plan transversal et vertical PL1 adjacent au bord arrière de la roue arrière 22 et d’un plan longitudinal et horizontal PH1 situé au-dessus de l’axe A22 de rotation de la roue arrière 22. As can be seen in Figure 1, the first set of rollers R1, which occupies a fixed position relative to the rear part of the frame 60, is arranged in a rear and upper position relative to the rear wheel 22 substantially at the intersection of a transverse and vertical plane PL1 adjacent to the rear edge of the rear wheel 22 and a longitudinal and horizontal plane PH1 located above the axis A22 of rotation of the rear wheel 22.
Comme on peut le voir aux figures 10 à 12, en position déployée et active de la structure mobile 1 12 les deux jeux de roulettes jumelles R1 et R2 sont espacés l’un de l’autre de telle sorte que leurs axes respectifs d’orientation AOR1 et AOR2 sont parallèles, d’orientation globalement verticale et sont espacés longitudinalement l’un de l’autre d’une distance D1 correspondant sensiblement au diamètre de la roue arrière 22. As can be seen in Figures 10 to 12, in the deployed and active position of the mobile structure 1 12 the two sets of twin wheels R1 and R2 are spaced from each other so that their respective axes of orientation AOR1 and AOR2 are parallel, generally vertical in orientation and are spaced longitudinally from each other by a distance D1 corresponding substantially to the diameter of the rear wheel 22.
La procédure pour replier la bicyclette 20 est la suivante. The procedure for folding the bicycle 20 is as follows.
Lors d’une première étape, par exemple en se plaçant latéralement sur le côté droit de la bicyclette 20, on fait pivoter la fourche de 180 degrés d’angle autour de l’axe A2 en tenant par exemple le tube 46 avec la main gauche dans la cavité 52 et au-dessus de la poignée 54, et le guidon 38 de la main droite. During a first step, for example by placing yourself laterally on the right side of the bicycle 20, the fork is pivoted through an angle of 180 degrees around the axis A2 by holding, for example, the tube 46 with the left hand. in the cavity 52 and above the handle 54, and the handlebar 38 of the right hand.
Selon une variante de conception non représentée, la bicyclette 20 peut comporter un dispositif de maintien temporaire de la fourche 24 dans cette position angulaire de pliage, tel que par exemple un système à bille intégré dans le tube de direction, ou tout autre dispositif ou mécanisme adapté à une telle fonction. According to a design variant not shown, the bicycle 20 may include a device for temporarily holding the fork 24 in this angular folding position, such as for example a ball system integrated in the steering tube, or any other device or mechanism. suitable for such a function.
Après ce pivotement la roue avant 23 a « reculé » à l’intérieur du cadre avec un recul correspondant du point P1 vers l’arrière, et la bicyclette est toujours en appui surle sol par ses deux roues 22 et 23. Le guidon a aussi « reculé et il est situé en arrière du plan transversal passant par l’axe de fourche A2. After this pivoting, the front wheel 23 has "recoiled" inside the frame with a corresponding backward movement from point P1, and the bicycle is still resting on the ground by its two wheels 22 and 23. The handlebar has also “recoiled and is located behind the transverse plane passing through the fork axis A2.
A la fin de cette première étape, on peut actionner la poignée 54 de la main gauche pour libérer le mécanisme de verrouillage à crochets 56 et ergots 98, tout en soulevant la partie avant de cadre 30 de la main gauche et en gardant la main droite sur la poignée droite du guidon 38. On fait ainsi pivoter la partie arrière de cadre 60 « sous » le tube 46 et la roue arrière 22 vient se positionner en face de la roue avant reculée 23. A la fin de ce mouvement de rotation autour de l’axe A1 , le premier jeu de roulettes R1 est en appui sur le sol S. At the end of this first step, one can operate the handle 54 with the left hand to release the locking mechanism with hooks 56 and lugs 98, while lifting the front part of the frame 30 with the left hand and keeping the right hand on the right handlebar grip 38. The rear part of the frame 60 is thus pivoted "under" the tube 46 and the rear wheel 22 is positioned opposite the rearward front wheel 23. At the end of this rotation movement around of the axis A1, the first set of wheels R1 rests on the ground S.
Lorsque la bicyclette est équipée d’un système complémentaire de verrouillage, la fourche 24 vient se verrouiller automatiquement sur la partie arrière de cadre 60. La bicyclette 20 est alors déjà quasiment stable en appui sur les deux roues 22 et 23 et sur les roulettes R1. When the bicycle is equipped with a complementary locking system, the fork 24 is automatically locked on the rear part of the frame 60. The bicycle 20 is then already almost stable in support on the two wheels 22 and 23 and on the casters R1 .
Cela permet alors, par exemple avec le pied, de déployer la structure mobile 1 12 en la faisant pivoter autour de l’axe A6 qui est dans une orientation quasi verticale. Lorsque la structure mobile est dans sa position active, le second jeu de roulettes est lui aussi en appui sur le sol S. This then allows, for example with the foot, to deploy the mobile structure 112 by pivoting it around the axis A6 which is in an almost vertical orientation. When the mobile structure is in its active position, the second set of rollers is also resting on the ground S.
La bicyclette dans son état replié de rangement est désormais en appui sur le sol en seulement trois « points » d’appui constitués par la roue avant 23 et par les deux jeux de roulettes R1 et R2. A titre non limitatif, mais avantageusement, la fonction complémentaire de verrouillage dans l’état plié de rangement au moyen du système complémentaire de verrouillage permet d’assurer une meilleure stabilité de la bicyclette repliée, notamment lorsqu’on la fait rouler sur le sol sur ses trois points d’appui et de roulage sur le sol, en s’assurant notamment qu’elle reste pliée lorsqu’on lui fait monter des marches. The bicycle in its folded storage state is now resting on the ground at only three “points” of support consisting of the front wheel 23 and the two sets of wheels R1 and R2. By way of non-limiting, but advantageously, the complementary function of locking in the folded storage state by means of the complementary locking system makes it possible to ensure better stability of the folded bicycle, in particular when it is rolled on the ground on its three points of support and rolling on the ground, ensuring in particular that it remains bent when it is made to climb stairs.
Dans l’état de rangement de la bicyclette 20, l’axe A5 de rotation du pédalier 68 et l’axe A22 de rotation de roue arrière 22 sont alignés sensiblement selon une droite qui, à titre non limitatif, est ici sensiblement parallèle à l’axe A2 de la fourche 24 (Voir figure 10). Comme les jeux de roulettes R1 , R2 sont chacun fou autour de leur axe désormais vertical d’orientation AOR1 , AOR2, il est alors extrêmement aisé de faire rouler la bicyclette repliée dans toutes les directions, y compris en la faisant globalement pivoter sur elle-même autour d’un axe vertical. In the storage state of the bicycle 20, the axis A5 of rotation of the crankset 68 and the axis A22 of rotation of the rear wheel 22 are aligned substantially along a straight line which, without limitation, is here substantially parallel to the axis A2 of the fork 24 (See figure 10). As the sets of wheels R1, R2 are each idle around their now vertical axis of orientation AOR1, AOR2, it is then extremely easy to roll the folded bicycle in all directions, including by making it globally pivot on itself. even around a vertical axis.
Pour la manœuvrer et la faire rouler par exemple pour venir la ranger dans un espace déterminé, on peut la manœuvrer par exemple en prenant en main(s) le tube de selle 40 ou bien le guidon 38. To maneuver it and roll it, for example to store it in a specific space, it can be maneuvered, for example, by taking the seat tube 40 or the handlebar 38 in hand(s).
Pour ce faire, on peut se positionner à l’avant ou à l’arrière, sans être gêné par aucun des autres composants de la bicyclette qui sont tous situés dans le volume V indiqué à la figure 10. To do this, you can position yourself at the front or at the back, without being bothered by any of the other components of the bicycle, which are all located in the volume V indicated in figure 10.
La conception permet aussi de manœuvrer la bicyclette 20 repliée pour lui faire monter ou descendre des marches d’un escalier. The design also allows the folded bicycle 20 to be maneuvered up or down steps of a staircase.
Il faut alors la manœuvrer (comme une valise comportant deux roulettes espacées dont les points d’appui sur le sol constituent un axe par rapport auquel on peut basculer la valise) en la faisant basculer par rapport au plan vertical en prenant appui sur les deux roulettes et en la tenant par exemple par le tube 46 qui constitue alors une zone formant poignée de manœuvre. Pour déplier à nouveau la bicyclette, on commence par replier la structure pivotante 112 (par exemple à l’aide du pied droit) pour ramener le second jeu de roulettes R2 dans la position escamotée décrite précédemment. It must then be maneuvered (like a suitcase with two spaced rollers whose points of support on the ground constitute an axis in relation to which the suitcase can be tilted) by tilting it relative to the vertical plane by resting on the two rollers and by holding it for example by the tube 46 which then constitutes a zone forming an operating handle. To unfold the bicycle again, one begins by folding the pivoting structure 112 (for example using the right foot) to bring the second set of wheels R2 into the retracted position described above.
Ensuite, il suffit de déplier le cadre autour de l’axe A1 . Si la bicyclette est équipée du système complémentaire de verrouillage, on commence par le déverrouiller. Then, just unfold the frame around the A1 axis. If the bicycle is equipped with the additional locking system, you start by unlocking it.
Il est possible de prévoir de commander le déverrouillage de ce système en agissant sur la poignée 54 reliée à cet effet au système complémentaire de verrouillage. La manœuvre de dépliage du cadre en deux parties est facilitée si l’on place son pied droit à l’avant de la roue arrière 22 pour éviter qu’elle ne roule sur le sol. Il est aussi possible de bloquer la rotation de la roue arrière en agissant sur le frein arrière en utilisant la poignée de freinage correspondante du guidon. II suffit de pousser sur le guidon 38 vers l’avant pour obtenir la rotation autour de l’axe A1 , qui se poursuit jusqu’au retour dans la position illustrée aux figures 1 et 2 avec un re-verrouillage automatique du mécan isme de verrouillage à crochets 56 et ergots 98. It is possible to provide for controlling the unlocking of this system by acting on the handle 54 connected for this purpose to the complementary locking system. The two-part frame unfolding maneuver is facilitated if you place your right foot in front of the rear wheel 22 to prevent it from rolling on the ground. It is also possible to block the rotation of the rear wheel by acting on the rear brake using the corresponding brake lever on the handlebar. It suffices to push the handlebar 38 forwards to obtain the rotation around the axis A1, which continues until the return to the position illustrated in Figures 1 and 2 with automatic re-locking of the locking mechanism with hooks 56 and lugs 98.
Il ne reste plus alors qu’à faire à nouveau pivoter la fourche d’un demi- tour autour de l’axe A2. All that remains is to pivot the fork again half a turn around axis A2.

Claims

REVENDICATIONS
1. Bicyclette pliable (20), entre un état déplié de roulage et un état replié de rangement de la bicyclette (20), comprenant un cadre principal pliable en deux parties (30, 60) comportant : - une partie avant de cadre (30) qui, à l’avant, porte un train avant avec une fourche avant (24) qui est pivotante autour d’un axe géométrique (A2) de fourche avant, sur laquelle une roue avant stable (23) est montée à rotation et dont une potence supérieure (36) est équipée d’un guidon (38), et qui, à l’arrière, comporte un tube de selle (40) qui supporte une selle (44) ;1. Foldable bicycle (20), between an unfolded rolling state and a folded storage state of the bicycle (20), comprising a foldable main frame in two parts (30, 60) comprising: - a front part of the frame (30 ) which, at the front, carries a front axle with a front fork (24) which is pivotable about a front fork geometric axis (A2), on which a stable front wheel (23) is rotatably mounted and whose an upper stem (36) is equipped with a handlebar (38), and which, at the rear, comprises a saddle tube (40) which supports a saddle (44);
- une partie arrière de cadre (60) qui, à l’arrière, porte à rotation une roue arrière (22) et qui, à l’avant, porte soit un pédalier (68) relié à la roue arrière (22) par une transmission, soit un pédalier, un moteur et sa batterie (90) pour l’assistance à l’entraînement du pédalier, ledit pédalier et le moteur étant reliés à la roue arrière (22) par une transmission, bicyclette (20) dans laquelle la partie arrière de cadre (60) est montée articulée sur la partie avant de cadre (30) autour d’un axe (A1) d’articulation qui est orthogonal au plan de la partie avant de cadre (30) pour permettre le pivotement de la partie arrière de cadre (60) entre une position angulaire de roulage de la bicyclette (20), et une position angulaire repliée de rangement de la bicyclette (20), et dans laquelle la partie arrière de cadre (60) porte une première roulette (R1 ) d’appui au sol de la bicyclette (20) qui, dans l’état déplié de la bicyclette (20), est agencée dans une position fixe, au droit d’un plan vertical (PL1) adjacent au bord arrière de la roue arrière (22) et au-dessus d’un plan horizontal passant par l’axe transversal (A22) de rotation de la roue arrière et qui, dans son état de rangement, est en appui sur le sol (S), bicyclette (20) caractérisée en ce que : - a rear part of the frame (60) which, at the rear, rotatably carries a rear wheel (22) and which, at the front, carries either a crankset (68) connected to the rear wheel (22) by a transmission, namely a crankset, a motor and its battery (90) for assisting the drive of the crankset, said crankset and the motor being connected to the rear wheel (22) by a transmission, a bicycle (20) in which the rear part of the frame (60) is mounted articulated on the front part of the frame (30) around an axis (A1) of articulation which is orthogonal to the plane of the front part of the frame (30) to allow the pivoting of the rear part of the frame (60) between an angular position for rolling the bicycle (20), and a folded angular position for storing the bicycle (20), and in which the rear part of the frame (60) carries a first roller ( R1) support on the ground of the bicycle (20) which, in the unfolded state of the bicycle (20), is arranged in a fixed position, in line with a p vertical lan (PL1) adjacent to the rear edge of the rear wheel (22) and above a horizontal plane passing through the transverse axis (A22) of rotation of the rear wheel and which, in its stowed condition, is resting on the ground (S), bicycle (20) characterized in that:
-- la partie arrière de cadre (60) porte une deuxième roulette (R2) d’appui au sol (S) de la bicyclette (20) qui est portée par une structure mobile (1 12) qui est montée pivotante (A6) sur la partie arrière de cadre (60, 105, 108) entre : -- the rear part of the frame (60) carries a second roller (R2) for supporting the ground (S) of the bicycle (20) which is carried by a mobile structure (112) which is pivotally mounted (A6) on the rear part of the frame (60, 105, 108) between:
- une position escamotée de la deuxième roulette (R2) lors du roulage de la bicyclette (20) ; - a retracted position of the second roller (R2) during rolling the bicycle (20);
- et une position active d’appui sur le sol de la bicyclette (20) dans son état de rangement ; et en ce que, dans l’état replié de rangement de la bicyclette (20) : - And an active support position on the ground of the bicycle (20) in its storage state; and in that, in the folded storage state of the bicycle (20):
* la première roulette (R1 ) est en appui sur le sol (S) ; * the first wheel (R1) is resting on the ground (S);
* la deuxième roulette (R2) est en appui sur le sol (S) ; * the second roller (R2) is resting on the ground (S);
* la roue avant (23) est en appu i sur le sol. * the front wheel (23) rests on the ground.
2. Bicyclette pliable (20) selon la revendication 1 , caractérisée en ce que, dans la position active de ladite structure mobile (1 12) et dans l'état de rangement de la bicyclette, la deuxième roulette (R2) est agencée dans une position fixe, au droit d'un plan vertical adjacent à un bord de la roue arrière (22) . 2. Foldable bicycle (20) according to claim 1, characterized in that, in the active position of said movable structure (1 12) and in the storage state of the bicycle, the second wheel (R2) is arranged in a fixed position, in line with a vertical plane adjacent to an edge of the rear wheel (22).
3. Bicyclette pliable (20) selon la revendication 1 , caractérisée en ce que, dans l’état de rangement de la bicyclette (20), l’axe (A22) de rotation de la roue arrière est situé sous la partie avant de cadre (30. 3. Foldable bicycle (20) according to claim 1, characterized in that, in the storage state of the bicycle (20), the axis (A22) of rotation of the rear wheel is located under the front part of the frame (30.
4. Bicyclette pliable (20) selon la revendication 1 , caractérisée en ce que, dans l’état de rangement de la bicyclette (20), l’axe (A5) de rotation du pédalier (68) et l’axe (A22) de rotation de roue arrière (22) sont alignés selon une droite sensiblement parallèle à l’axe (A2) de pivotement de la fourche avant (24) . 4. Foldable bicycle (20) according to claim 1, characterized in that, in the storage state of the bicycle (20), the axis (A5) of rotation of the pedal (68) and the axis (A22) rear wheel rotation (22) are aligned along a straight line substantially parallel to the axis (A2) pivoting the front fork (24).
5. Bicyclette pliable (20) selon la revendication 1 , caractérisée en ce que, dans l’état de rangement de la bicyclette (20), l’ensemble des composants de la bicyclette est situé à l’intérieur d’un volume (V) délimité par deux plans verticaux et transversaux (PL2, PL3) qu i sont adjacents au bords opposés de la roue arrière (22). 5. Folding bicycle (20) according to claim 1, characterized in that, in the storage state of the bicycle (20), all the components of the bicycle are located inside a volume (V ) delimited by two vertical and transverse planes (PL2, PL3) which i are adjacent to the opposite edges of the rear wheel (22).
6. Bicyclette pliable (20) selon la revendication précédente, caractérisée en ce que, dans l’état de rangement de la bicyclette (20), la fourche avant (24) est pivotée d’environ un demi-tour par rapport à son orientation angulaire de roulage en ligne droite, et en ce que le guidon (38) est situé à l’intérieur dudit volume (V). 6. Folding bicycle (20) according to the preceding claim, characterized in that, in the storage state of the bicycle (20), the front fork (24) is pivoted about half a turn with respect to its orientation. angular rolling in a straight line, and in that the handlebar (38) is located inside said volume (V).
7. Bicyclette selon la revendication 1 , caractérisée en ce qu’elle comporte un système de verrouillage qui, dans l’état de rangement de la bicyclette (20), immobilise la partie avant de cadre avant (30) par rapport à la partie arrière de cadre (60). 7. Bicycle according to claim 1, characterized in that it comprises a locking system which, in the state of storage of the bicycle (20), immobilizes the front part of the front frame (30) with respect to the rear part of the frame (60).
8. Bicyclette selon la revendication précédente, caractérisée en ce que ledit système de verrou illage est agencé entre la fourche avant (24) et la partie arrière de cadre (60) de manière à, dans l’état de rangement de la bicyclette (20) , immobiliser simultanément la partie avant de cadre (30) par rapport à la partie arrière de cadre (60), et la fourche avant autour de l’axe (A2) de pivotement de la fourche avant (24). 9. Bicyclette selon la revendication 1 , caractérisée en ce que, en état déplié de rou lage, la partie arrière de cadre (60) est ancrée sur la partie avant de cadre (30) en au moins trois points d’ancrage. 8. Bicycle according to the preceding claim, characterized in that said locking system is arranged between the front fork (24) and the rear part of the frame (60) so as to, in the storage state of the bicycle (20 ), simultaneously immobilizing the front part of the frame (30) relative to the rear part of the frame (60), and the front fork around the axis (A2) pivoting the front fork (24). 9. Bicycle according to claim 1, characterized in that, in the unfolded rolling state, the rear part of the frame (60) is anchored to the front part of the frame (30) at at least three anchor points.
10. Bicyclette selon la revendication 9, caractérisée en ce que la partie arrière de cadre arrière (60) comporte un montant avant10. Bicycle according to claim 9, characterized in that the rear part of the rear frame (60) comprises a front upright
(76) qui s’étend g lobalement verticalement vers le haut à partir d’une boîte du pédalier (64) et dont une partie supérieure, en état déplié de rou lage, est reliée de manière verrouillée (54) au tube de selle (40) de la partie avant de cadre (30). (76) which extends generally vertically upwards from a bottom bracket shell (64) and of which an upper part, in the unfolded rolling state, is connected in a locked manner (54) to the seat tube ( 40) of the front part of the frame (30).
PCT/FR2022/000054 2021-06-04 2022-06-04 Foldable bicycle WO2022254099A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2105926A FR3123628A1 (en) 2021-06-04 2021-06-04 FOLDING BICYCLE
FRFR2105926 2021-06-04

Publications (1)

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WO2022254099A1 true WO2022254099A1 (en) 2022-12-08

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FR (1) FR3123628A1 (en)
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Citations (6)

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JP2010184523A (en) * 2009-02-10 2010-08-26 Yasuo Umaji Bicycle
CN201633852U (en) * 2009-12-31 2010-11-17 厦门松尼亚多功能车有限公司 Folding bicycle
EP2581298A1 (en) * 2011-10-11 2013-04-17 Beistegui Hermanos, S.L. Folding bicycle, particularly a pedal-assist bicycle
CN106428359A (en) * 2016-08-29 2017-02-22 天津金轮自行车集团有限公司 Electric bicycle having three folding positions and built-in battery
CN206231529U (en) * 2016-11-30 2017-06-09 帅群微电子股份有限公司 Folding electric bicycle
CN207860356U (en) * 2018-01-25 2018-09-14 帅群微电子股份有限公司 Flexible auxiliary wheel

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JP2010184523A (en) * 2009-02-10 2010-08-26 Yasuo Umaji Bicycle
CN201633852U (en) * 2009-12-31 2010-11-17 厦门松尼亚多功能车有限公司 Folding bicycle
EP2581298A1 (en) * 2011-10-11 2013-04-17 Beistegui Hermanos, S.L. Folding bicycle, particularly a pedal-assist bicycle
CN106428359A (en) * 2016-08-29 2017-02-22 天津金轮自行车集团有限公司 Electric bicycle having three folding positions and built-in battery
CN206231529U (en) * 2016-11-30 2017-06-09 帅群微电子股份有限公司 Folding electric bicycle
CN207860356U (en) * 2018-01-25 2018-09-14 帅群微电子股份有限公司 Flexible auxiliary wheel

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