WO2021214525A1 - Ensemble de liaison et de suspension d'une paire de roues placées axialement côte à côte pour un véhicule inclinable - Google Patents

Ensemble de liaison et de suspension d'une paire de roues placées axialement côte à côte pour un véhicule inclinable Download PDF

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Publication number
WO2021214525A1
WO2021214525A1 PCT/IB2020/053881 IB2020053881W WO2021214525A1 WO 2021214525 A1 WO2021214525 A1 WO 2021214525A1 IB 2020053881 W IB2020053881 W IB 2020053881W WO 2021214525 A1 WO2021214525 A1 WO 2021214525A1
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WO
WIPO (PCT)
Prior art keywords
wheel
arm
rocker
rotation axis
connection
Prior art date
Application number
PCT/IB2020/053881
Other languages
English (en)
Inventor
Daniele Rinaldi
Original Assignee
Rinaldi Telai S.R.L. Unipersonale
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 Rinaldi Telai S.R.L. Unipersonale filed Critical Rinaldi Telai S.R.L. Unipersonale
Priority to PCT/IB2020/053881 priority Critical patent/WO2021214525A1/fr
Publication of WO2021214525A1 publication Critical patent/WO2021214525A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G3/00—Resilient suspensions for a single wheel
    • B60G3/02—Resilient suspensions for a single wheel with a single pivoted arm
    • B60G3/12—Resilient suspensions for a single wheel with a single pivoted arm the arm being essentially parallel to the longitudinal axis of the vehicle
    • B60G3/14—Resilient suspensions for a single wheel with a single pivoted arm the arm being essentially parallel to the longitudinal axis of the vehicle the arm being rigid
    • B60G3/145—Resilient suspensions for a single wheel with a single pivoted arm the arm being essentially parallel to the longitudinal axis of the vehicle the arm being rigid the arm forming the axle housing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G21/00—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
    • B60G21/02—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected
    • B60G21/026—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected transversally
    • 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
    • B62K5/00—Cycles with handlebars, equipped with three or more main road wheels
    • B62K5/10—Cycles with handlebars, equipped with three or more main road wheels with means for inwardly inclining the vehicle body on bends
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2300/00—Indexing codes relating to the type of vehicle
    • B60G2300/12—Cycles; Motorcycles
    • B60G2300/122—Trikes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2300/00—Indexing codes relating to the type of vehicle
    • B60G2300/45—Rolling frame vehicles

Definitions

  • the present invention relates to a connection and suspension assembly of a pair of wheels placed axially side-by-side for a tilting vehicle, for example for a cargo bicycle, where the connection and suspension assembly comprises a pair of wheels placed side-by-side and facing each other.
  • the present invention also relates to a tilting vehicle comprising such a connection and suspension assembly.
  • Tilting wheeled vehicles are well-known, which comprise a vehicle frame and one or more wheels connected to the frame and arranged along a longitudinal plane of vehicle, or along centerline plane of the vehicle, which generally is vertical and is arranged according to an advancing direction of the vehicle.
  • the use of the tilting vehicle is based on the balance thereof, keeping the centerline plane in generally vertical position when the vehicle advances on a rectilinear trajectory, and tilting such a centerline plane of the vehicle towards the center of curvature of the trajectory when it is cornering to compensate for the centrifugal force and maintain the balance.
  • the known cargo bicycles are not tilting and although they have a pair of wheels placed side-by-side each other, between which the load is axially arranged, such wheels are axially far from each other and the rotation axis of such wheels is fixed with respect to the frame of the vehicle.
  • a tilting vehicle comprising at least one pair of wheels placed axially side-by-side and close to each other, capable of reconciling the two countering needs of allowing a symmetrical translation of the wheels of the pair in order to ensure the adherence of both wheels when the vehicle is tilted or is cornering, and to allow each wheel of the pair to translate in a non-symmetrical manner with respect to the other when it instantaneously encounters a projection or a depression of the road surface so that both wheels maintain the adherence even under this circumstance.
  • connection and suspension assembly of a pair of wheels placed axially side-by-side and close to each other for a tilting vehicle which allows both wheels of the pair of side-by-side wheels to adhere to the road surface both in the case of regular road surface and if one of the two wheels suddenly encounters a projection or a depression of the road surface, also when the vehicle is tilted or is cornering.
  • connection and suspension assembly of a pair of wheels placed axially side-by-side and close to each other for a tilting vehicle capable of reconciling and meeting both of the two countering needs of allowing a symmetrical translation of the wheels of the pair in order to ensure the adherence of both wheels when the vehicle is tilted or is cornering, and to allow each wheel of the pair to translate independently of the other when it suddenly encounters a projection or a depression of the road surface so that both wheels continue to adhere to the road surface even under this circumstance.
  • connection and suspension assembly of a pair of wheels placed axially side-by-side and close to each other for a tilting vehicle, capable of automatically freeing the translation of the wheels from the condition of mutual symmetrical translation if one of the two wheels encounters an irregularity of the road surface so that both wheels continue adhering to the road surface.
  • connection and suspension assembly of a pair of wheels placed axially side-by-side for a tilting vehicle, capable of ensuring the cornering stability of the vehicle on an irregular road surface even if such a vehicle transports an increased load.
  • connection and suspension assembly of a pair of wheels placed axially side-by-side and close to each other for a tilting vehicle, and also by a tilting vehicle having said connection and suspension assembly, according to the independent claims.
  • FIG. 1 shows an angled isometric view of a connection and suspension assembly of a pair of wheels placed axially side-by-side according to the invention, where the wheels were omitted to facilitate the disclosure of the technical features, where the wheel arms are aligned with each other, and where the rocker arm is at the front end-of-stroke point;
  • Figure 2 shows an orthogonal side view from the right, of the connection and suspension assembly in Figure
  • Figure 3 shows an orthogonal rear view of the connection and suspension assembly in Figure 1;
  • Figure 4 shows an orthogonal top view of the connection and suspension assembly in Figure 1;
  • FIG. 5 shows an angled isometric view of a connection and suspension assembly of a pair of wheels placed axially side-by-side according to the invention, where the wheels were omitted to facilitate the disclosure of the technical features, where the wheel arms are rotated to the maximum angular distance between each other, and where the rocker arm is in an intermediate position between the front end-of-stroke point and the rear end-of-stroke point;
  • FIG. 6 shows an orthogonal side view from the right, of the connection and suspension assembly in Figure
  • Figure 7 shows an orthogonal rear view of the connection and suspension assembly in Figure 5;
  • FIG. 8 shows an angled isometric view of a connection and suspension assembly of a pair of wheels placed axially side-by-side according to the invention, where the wheels were omitted to facilitate the disclosure of the technical features, where the wheel arms are aligned with each other, and where the rocker arm is in an intermediate position between the front end-of-stroke point and the rear end-of-stroke point;
  • Figure 9 shows an orthogonal side view from the right, of the connection and suspension assembly in Figure
  • Figure 10 shows an orthogonal rear view of the connection and suspension assembly in Figure 8;
  • FIG. 11 shows a partial side view of the connection and suspension assembly in the balance position, i.e. when the vehicle has the longitudinal vehicle plane arranged vertical, or in any case orthogonal to the road surface, which is substantially free from asperities;
  • FIG. 12 shows a partial side view of the connection and suspension assembly when the second wheel has instantaneously encountered a projection of the road surface, where the impulsive force received from the second wheel caused the displacement of the rocker arm from the front end-of-stroke point towards the rear end- of-stroke point and the simultaneous rotation of the rocker arm about the pin axis, causing a non-symmetrical movement of the two wheels with respect to the balance position while maintaining the adherence of both the two wheels placed side-by-side, to the road surface;
  • Figure 13 shows a partial side view of the connection and suspension assembly during a braking action
  • FIG. 15 shows a side view of a cargo bicycle having a connection and suspension assembly of a pair of wheels placed axially side-by-side according to the invention, mounted as forecarriage of the bicycle, where such a forecarriage is depicted in steered position;
  • Figure 16 shows a front view of the cargo bicycle in Figure 15;
  • FIG. 17 shows a front view of the bicycle in
  • connection and suspension assembly of a pair of wheels placed axially side-by-side and close to each other for a tilting vehicle 100 according to the invention is indicated as a whole with numeral 1.
  • connection and suspension assembly 1 comprises a first wheel 18 and a second wheel 19.
  • the first wheel 18 defines a rotation axis R1 of first wheel, an inner face 18' of first wheel and an opposite outer face 18'' of first wheel lying on respective planes orthogonal to the rotation axis R1 of first wheel.
  • the second wheel 19 defines a rotation axis R2 of second wheel, an inner face 19' of second wheel and an opposite outer face 19'' of second wheel lying on respective planes orthogonal to the rotation axis R2 of second wheel.
  • the inner face 18' of first wheel faces said inner face 19' of second wheel.
  • connection and suspension assembly 1 comprises a central structure 10 having a first end 11 which is connectable, or connected, to a frame 101 of said tilting vehicle 100, said central structure 10 being interposed between said first wheel 18 and said second wheel 19.
  • connection and suspension assembly 1 comprises a first wheel arm 23 with which the first wheel 18 is pivotally engaged about said rotation axis R1 of first wheel, and a second wheel arm 24 with which the second wheel 19 is pivotally engaged about said rotation axis R2 of second wheel.
  • first wheel arm 23 and the second wheel arm 24 both are hinged to the central structure 10 about the same wheel arm rotation axis B, on opposite sides with respect to said central structure 10.
  • connection and suspension assembly 1 defines a median plane M orthogonal to said wheel arm rotation axis B and centrally interposed between, and equally spaced from, said first wheel arm 23 and said second wheel arm 24.
  • first wheel 18 and the second wheel 19 may also be indicated as “left-hand wheel” and “right-hand wheel”, respectively, because they are arranged to the left and to the right with respect to the median plane M, in particular with respect to a person sitting in a driving position of the tilting vehicle 100.
  • the median plane M preferably is a central plane of symmetry of the connection and suspension assembly 1.
  • the first wheel arm 23 preferably is substantially equal to the second wheel arm 24, or preferably specular to the second wheel arm 24 with respect to the median plane M.
  • the radial distance between the rotation axis R1 of first wheel and the wheel arm rotation axis B of the first arm 23 substantially is equal to the radial distance between the rotation axis R2 of second wheel and the wheel arm rotation axis B of the second wheel arm 24.
  • the first wheel arm 23 and the second wheel arm 24 are preferably symmetrical-shaped and specular with respect to the median plane M.
  • the rotation axes Rl, R2 of first wheel and of second wheel lie on planes parallel to the wheel arm rotation axis B.
  • the rotation axes Rl, R2 of first wheel and of second wheel are parallel to the wheel arm rotation axis B, and therefore are parallel to each other.
  • the rotation axis Rl of first wheel and the rotation axis R2 of second wheel here always remain parallel to each other, in particular in any tilting of the tilting vehicle 100, and also in any rotation angle of the steering of the vehicle.
  • the lying planes of the inner face 18' of first wheel and of the inner face 19' of second wheel always remain parallel to each other, in any tilting of the tilting vehicle 100, and also in any rotation angle of the steering of the vehicle.
  • the first wheel 18 and the second wheel 19 substantially are equal to each other.
  • first wheel arm 23 and the second wheel arm 24 comprise a respective elongated arm body which joins the rotation axis R1 of first wheel, or of second wheel R2, respectively, with the wheel arm rotation axis B, where such an elongated arm body of each arm mainly extends along a respective rectilinear direction of extension.
  • the rectilinear direction of extension of the first arm 23 and the rectilinear direction of extension of the second arm 23 are preferably symmetrical with respect to the median plane, for example parallel to the median plane
  • connection and suspension assembly 1 further comprises an elongated rocker arm 30 having a first free rocker-arm end 31 and an opposite second free rocker-arm end 32, said rocker arm 30 being pivotally engaged, at a first intermediate, preferably central, point 33 of said rocker arm, between the first free end 31 and the second free end 32 of the rocker arm, about a rocker-arm pin 40 which is integral with said central structure 10, and defining a rocker-arm pin axis P lying on said median plane M.
  • the rocker arm 30 may rotate on a plane orthogonal to the median plane M.
  • connection and suspension assembly 1 comprises a first connecting rod 51 engaged with said first free rocker-arm end 31 in an upper connection point 51'' of first connecting rod by means of an upper ball joint, and engaged with said first wheel arm 23 in a lower connection point 51' of first connecting rod by means of a lower ball joint.
  • connection and suspension assembly 1 comprises a second connecting rod 52 engaged with said second free rocker-arm end 32 in an upper connection point 52'' of second connecting rod by means of an upper ball joint, and engaged with said second wheel arm 24 in a lower connection point 52' of second connecting rod by means of a lower ball joint.
  • the second connecting rod 52 is equal to the first connecting rod 51.
  • the distance between the upper connection point 51'' and the lower connection point 51' of the first connecting rod 51 substantially is equal to the distance between the upper connection point 52'' and the lower connection point 52' of the second connecting rod 52.
  • each connecting rod 51, 52 measured between the upper connection point 51'', 52'' and the lower connection point %1', 52', is adjustable.
  • the length of the connecting rods may be adjusted in order to accurately adjust the correlation between the forces applied by the wheels 18, 19 to the first arm 23 and to the second arm 24 with the force exerted by the rocker arm 30 against the thrust means 60, which are described later in the present description.
  • rocker arm 30 is also free to slidingly translate along said rocker-arm pin 40 between a front end-of-stroke point 41 and an opposite rear end-of- stroke point 42.
  • the rocker arm 30 is engaged with the central structure 10 by means of a kinematic pair with two degrees of freedom, allowing the rotary motion of the rocker arm 30 about rocker-arm pin 40 and the translational motion of the rocker arm 30 along the rocker-arm pin 40.
  • the rotation of the rocker arm 30 about a rotation axis different from the pin axis P is prevented.
  • the front end-of- stroke point 41 is at a first distance from the wheel arm rotation axis B and the rear end-of-stroke point 42 is at a second distance from the wheel arm rotation axis B, where the first distance is less than the second distance.
  • the wheel arm rotation axis B defines a front plane F, or rolling plane, containing the wheel arm rotation axis B, which is orthogonal to the median plane M, where said rocker-arm pin 40, said rocker arm 30, said first wheel arm 23 and said second wheel arm 24, said first connecting rod 51 and said second connecting rod 52, are all arranged on the same side, or in the same half-space, with respect to said front plane F.
  • connection and suspension assembly 1 In use, when the connection and suspension assembly 1 is mounted on the tilting vehicle 100, the front plane substantially is vertical and orthogonal to a forward advancement direction DA of vehicle 100.
  • said rocker-arm pin 40, said rocker arm 30, said first wheel arm 23 and said second wheel arm 24, said first connecting rod 51 and said second connecting rod 52 are preferably all arranged on the same side with respect to the front plane F, or rolling plane, which opposes the forward advancement direction DA, or in the half-space defined by the front plane F, opposite to the forward advancement direction DA.
  • the orthogonal projection on the median plane M of the first wheel arm 23 and of the second wheel arm 24 overlap and are aligned with one another
  • the orthogonal projection on the median plane M of the line joining the upper connection point 51'', 52'' and the lower connection point 51', 52' forms an angle which is greater than 90° with the pin axis P proceeding from the front end-of-stroke point 41 to the rear end-of-stroke point 42.
  • the lower connection point 51' of the first connecting rod 51 is interposed between said wheel arm rotation axis B and said rotation axis R1 of first wheel
  • the lower connection point 51' of the second connecting rod 52 is interposed between said wheel arm rotation axis B and said rotation axis R2 of second wheel.
  • the line joining the orthogonal projection on the median plane M of the lower connection point 51', 52' and the wheel arm rotation axis B, and the line joining the front end-of-stroke point 41 and the orthogonal projection on the median plane M of the lower connection point 51'', 52'' form an angle b of about 90° between each other.
  • the axis of the rocker-arm pin P is tangent to a circumference with middle on the wheel arm rotation axis B and having a first radius value RR1, and where the lower connection point 51' of the first connecting rod 51, or the lower connection point 52' of the second connecting rod 52, is distanced from the wheel arm rotation axis B by a second radius value RR2, where the first radius value RR1 is greater than the second radius value RR2.
  • the line joining the upper connection point 51'' and the lower connection point 51' of the first connecting rod 51 and the line joining the upper connection point 52'' and the lower connection point 52' of the second connecting rod 52 are parallel to the median plane M, or they are tilted in symmetrical manner with respect to the median plane M.
  • the rocker- arm pin axis P substantially is horizontal.
  • the rocker-arm pin axis P belongs to the median plane M and preferably is orthogonal to the front plane F.
  • connection and support assembly 1 comprises thrust, or contrast, means 60 configured to push the rocker arm 30 against the front end-of-stroke point 41 along the pin axis P by applying a thrust force, and to allow the rocker arm 30 to move away from the front end-of-stroke point 41 when the intensity of a force applied by the rocker arm 30 along the pin axis P against the thrust means 60 exceeds the intensity of the opposite thrust force applied by the thrust means 60.
  • thrust, or contrast, means 60 configured to push the rocker arm 30 against the front end-of-stroke point 41 along the pin axis P by applying a thrust force, and to allow the rocker arm 30 to move away from the front end-of-stroke point 41 when the intensity of a force applied by the rocker arm 30 along the pin axis P against the thrust means 60 exceeds the intensity of the opposite thrust force applied by the thrust means 60.
  • the thrust force is transmitted to the rocker arm 30 by said first wheel arm 23 and by said second wheel arm 24 by means of said first connecting rod 51 and of said second connecting rod 52, respectively.
  • thrust means 60 oppose the translation of the rocker arm 30 towards the rear end-of- stroke point 42.
  • said thrust means In accordance with an embodiment, said thrust means
  • 60 comprise one or more elastic elements 61, or springs, arranged so as to apply said thrust force.
  • said thrust elements 60 comprise, or are formed by, a helical spring
  • pin 40 is inserted into the central axial space of the helical spring.
  • the thrust means 60 comprise one or more dampers acting along said pin axis P or parallel to said pin axis P.
  • the dampers are arranged parallel to said one or more elastic elements 61.
  • the connection portion 11 of said central structure 10 comprises a coupling element 12 for interchangeably assembling/disassembling said connection and suspension assembly 1 of a pair of wheels placed axially side-by-side with a frame 101 of a tilting vehicle 100, to replace a pre-existing forecarriage 105 of said tilting vehicle 100 and/or a pre-existing rearcarriage 106 of said tilting vehicle 100.
  • connection and suspension assembly 1 of a pair of wheels placed axially side-by-side is a forecarriage of a tilting vehicle 100 and/or where said connection and suspension assembly 1 of a pair of wheels placed axially side-by-side is a rearcarriage of a tilting vehicle 100.
  • connection and suspension assembly 1 forms the forecarriage of a cargo bicycle 100, while such a bicycle has one, non-steerable rear wheel alone in Figures 15 to 17.
  • connection and suspension assembly 1 comprises steering means 15 adapted to move said connection and suspension assembly 1 angularly with respect to the tilting vehicle 100, about a steering axis S.
  • the steering means 15 comprise a handlebar 16 and an articulated parallel transmission 17 for transmitting the angular position of the handlebar to the connection and suspension assembly 1.
  • a tilting vehicle 100 with wheels placed side-by-side having a vehicle frame 101 which extends between a front portion of vehicle and a rear portion of vehicle, comprising at least one connection and suspension assembly 1 of a pair of wheels placed axially side-by-side according to at least one preceding claim, assembled as forecarriage 105 to said anterior portion of vehicle and/or assembled as rearcarriage 106 to said rear portion of vehicle.
  • the tilting vehicle 100 is a cargo bicycle.
  • the tilting vehicle 100 is a kick scooter.
  • the tilting vehicle 100 is a bicycle for persons with limited mobility.
  • the tilting vehicle 100 is pedal-powered or motor-powered.
  • connection and suspension assembly 1 of a pair of wheels placed axially side-by-side and the tilting vehicle having the aforesaid connection and suspension assembly 1 as described above from the viewpoint of the technical features of device, are now described from the operating viewpoint.
  • connection and suspension assembly 1 is preferably, but not necessarily, mounted at the front portion of the vehicle, i.e. as a forecarriage of the vehicle.
  • connection and suspension assembly 1 is mounted so that the median plane M is arranged along the longitudinal plane of extension L of the tilting vehicle, which passes through the front portion 105 and the rear portion 106 of the vehicle, and normally is arranged vertical in use.
  • connection and suspension assembly 1 may comprise steering means 15, in particular a handlebar 16 and a transmission 17, for example an articulated quadrilateral transmission, for transmitting the angular position from handlebar 16 to the central structure 10 of the connection and suspension assembly 1.
  • the driver provides the connection and suspension assembly 1, in particular the central structure 10, with the desired instantaneous orientation in order to guide the vehicle.
  • the driver rotates the median plane M by a wanted angle with respect to the longitudinal plane L in order to guide vehicle 100.
  • the wheel arms 23, 24 are aligned with each other so that the rotation axis R1 of first wheel and the rotation axis R2 of second wheel both lie on the same plane of balance containing the wheel arm rotation axis B.
  • the rocker arm 30 is parallel to the wheel arm rotation axis B and is positioned close to the front end-of-stroke point 41.
  • connection and suspension assembly 1 is in balance in this configuration, which is shown for example in Figure 11.
  • the angular position of the two wheel arms 23 and 24 in this configuration is indicated in the present description as balance position.
  • connection and suspension assembly [00114]
  • 1 according to the invention allows an instantaneous adaption of the related position between the two wheel arms, and therefore of the related position between the two wheels, so that the wheels 18, 19 continue adhering to the road surface also at local projections or depressions of the road surface itself.
  • the thrust means 60 preferably comprising one or more elastic elements, oppose the sliding of the rocker arm 30 towards the rear end-of-stroke 42 by applying a thrust force.
  • Figure 13 shows the configuration of the connection and suspension assembly 1 during a braking of the tilting vehicle, when such a vehicle is arranged with the longitudinal plane thereof vertical.
  • Figure 17 shows the tilting vehicle 100 when cornering on a road surface which is substantially free from local projections or depressions, when vehicle 100 is tilted.
  • the first wheel arm 23 and the second wheel arm 24 rotate between each other about the wheel arm rotation axis B according to equal and opposite angles between each other with respect to the angular position they occupy when the vehicle is in vertical position.
  • the rocker arm 30 rotates about pin 40, according to a corresponding angle, however it remains at the front end-of-stroke point 41. It controls the related symmetrical rotation of the first wheel arm 23 and of the second wheel arm 24 at the front end-of-stroke point, therefore by means of the connecting rods 51 and 52.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

L'invention concerne un ensemble de liaison et de suspension (1) d'une paire de roues (18, 19) placées axialement côté à côté pour un véhicule à roues inclinable (100), comprenant : une paire de roues placées axialement côté à côté l'une de l'autre, comprenant une première roue (18) et une seconde roue (19), ladite première roue (18) définissant un axe de rotation (R1) de première roue, une face interne (18') de première roue et une face externe opposée (18'') de première roue reposant sur des plans respectifs orthogonaux à l'axe de rotation (R1) et première roue et ladite seconde roue (19) définissant un axe de rotation (R2) de seconde roue, une face interne (19') de seconde roue et une face externe opposée (19'') de seconde roue reposant sur des plans respectifs orthogonaux à l'axe de rotation (R2) de seconde roue, la face interne (18') de première roue faisant face à ladite face interne (19') de seconde roue ; une structure centrale (10) ayant une partie de liaison (11) qui peut être reliée ou qui est reliée à un cadre (101) dudit véhicule inclinable (100), ladite structure centrale (10) étant interposée entre ladite première roue (18) et la dite seconde roue (19) ; un bras de première roue (23) avec lequel la première roue (18) est en prise pivotante autour dudit axe de rotation (Rl) de première roue et un bras de seconde roue (24) avec lequel la seconde roue (19) est en prise pivotante autour dudit axe de rotation (R2) de seconde roue, ledit bras de première roue (23) et ledit bras de seconde roue (24) étant tous les deux articulés sur ladite structure centrale (10) autour du même axe de rotation de bras de roue (B), sur des côtés opposés par rapport à ladite structure centrale (10) ; ledit ensemble de liaison et de suspension (1) définissant un plan médian (M) orthogonal audit axe de rotation de bras de roue (B) et interposé de manière central entre ledit bras de première roue (23) et ledit bras de seconde roue (24) et espacé uniformément de ceux-ci ; un bras oscillant allongé (30) ayant une première extrémité de bras oscillant libre (31) et une seconde extrémité de bras oscillant libre opposée (32), ledit bras oscillant (30) étant en prise pivotante, au niveau d'un premier point intermédiaire (33) dudit bras oscillant (30), entre la première extrémité libre (31) et la seconde extrémité libre (32) du bras oscillant, autour d'une broche de bras oscillant (40) qui fait partie intégrante de ladite structure centrale (10) et définissant un axe de broche de bras oscillant (P) reposant sur ledit plan médian (M) ; une première tige de liaison (51) en prise avec ladite première extrémité de bras oscillant libre (31) dans un point de liaison supérieur (51'') de la première tige de liaison au moyen d'un joint à rotule supérieur et en prise avec ledit bras de première roue (23) dans un point de liaison inférieur (51') de la première tige de liaison au moyen d'un joint à rotule inférieur ; une seconde tige de liaison (52) en prise avec ladite seconde extrémité de bras oscillant libre (32) dans un point de liaison supérieur (52'') de la seconde tige de liaison au moyen d'un joint à rotule supérieur et en prise avec ledit bras de seconde roue (24) dans un point de liaison inférieur (52') de la seconde tige de liaison au moyen d'un joint à rotule inférieur ; en plus d'être en prise pivotante autour de ladite broche de bras oscillant (40), ledit bras oscillant (30) est également libre de coulisser ledit de ladite broche de bras oscillant (40) entre un point de fin de course avant (41) et un point de fin de course arrière opposé (42).
PCT/IB2020/053881 2020-04-24 2020-04-24 Ensemble de liaison et de suspension d'une paire de roues placées axialement côte à côte pour un véhicule inclinable WO2021214525A1 (fr)

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PCT/IB2020/053881 WO2021214525A1 (fr) 2020-04-24 2020-04-24 Ensemble de liaison et de suspension d'une paire de roues placées axialement côte à côte pour un véhicule inclinable

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PCT/IB2020/053881 WO2021214525A1 (fr) 2020-04-24 2020-04-24 Ensemble de liaison et de suspension d'une paire de roues placées axialement côte à côte pour un véhicule inclinable

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2926783A1 (fr) * 2008-01-28 2009-07-31 Benjamin Duprat Dispositif de direction et de suspension a deux roues rapprochees pour un tricycle monoplace ou biplace en tandem
US10112672B2 (en) * 2017-03-31 2018-10-30 Fu-Long Chang Frame mechanism for a vehicle with at least three wheels

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2926783A1 (fr) * 2008-01-28 2009-07-31 Benjamin Duprat Dispositif de direction et de suspension a deux roues rapprochees pour un tricycle monoplace ou biplace en tandem
US10112672B2 (en) * 2017-03-31 2018-10-30 Fu-Long Chang Frame mechanism for a vehicle with at least three wheels

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