WO2022157655A1 - Véhicule, en particulier du type cyclisme, plus particulièrement sous la forme d'une bicyclette - Google Patents

Véhicule, en particulier du type cyclisme, plus particulièrement sous la forme d'une bicyclette Download PDF

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Publication number
WO2022157655A1
WO2022157655A1 PCT/IB2022/050461 IB2022050461W WO2022157655A1 WO 2022157655 A1 WO2022157655 A1 WO 2022157655A1 IB 2022050461 W IB2022050461 W IB 2022050461W WO 2022157655 A1 WO2022157655 A1 WO 2022157655A1
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WO
WIPO (PCT)
Prior art keywords
vehicle according
rocker arm
transversal
front wheels
struts
Prior art date
Application number
PCT/IB2022/050461
Other languages
English (en)
Inventor
Massimo Franzaroli
Nicola GIACCHERO
Vanes NATALINI
Original Assignee
Pulsar S.R.L.
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 Pulsar S.R.L. filed Critical Pulsar S.R.L.
Priority to EP22708214.6A priority Critical patent/EP4281355A1/fr
Publication of WO2022157655A1 publication Critical patent/WO2022157655A1/fr

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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
    • B62K5/00—Cycles with handlebars, equipped with three or more main road wheels
    • B62K5/02—Tricycles
    • B62K5/05—Tricycles characterised by a single rear wheel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K21/00—Steering devices
    • B62K21/18—Connections between forks and handlebars or handlebar stems
    • 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
    • B62K25/00—Axle suspensions
    • B62K25/04—Axle suspensions for mounting axles resiliently on cycle frame or fork
    • B62K25/12—Axle suspensions for mounting axles resiliently on cycle frame or fork with rocking arm pivoted on each fork leg
    • B62K25/14—Axle suspensions for mounting axles resiliently on cycle frame or fork with rocking arm pivoted on each fork leg with single arm on each fork leg
    • B62K25/16—Axle suspensions for mounting axles resiliently on cycle frame or fork with rocking arm pivoted on each fork leg with single arm on each fork leg for front wheel
    • B62K25/18—Axle suspensions for mounting axles resiliently on cycle frame or fork with rocking arm pivoted on each fork leg with single arm on each fork leg for front wheel the arm being pivoted intermediate its ends
    • 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

Definitions

  • the present invention relates to a vehicle, in particular of the cycling type, especially consisting in a bicycle, and preferentially in the form of a mountain bike, a city bike, or the like.
  • Bicycles called mountain bikes comprising a support frame, wheel means, respectively front and rear wheel means, and steering means, in particular in the form of a respective handlebar, in particular comprising a respective steering control shaft connected, or supporting, through a corresponding fork, said front wheel means.
  • the wheels of said already known bicycles are generally composed of a front wheel and a rear wheel to define an advancement mono-track of the vehicle.
  • a vehicle in particular of the cycling type, especially consisting in a bicycle, and preferentially in the form of a mountain bike, a city bike, or the like; comprising a support frame, wheel means, respectively front and rear wheel means, said front wheel means comprising a first and a second wheels that are side-by-side to one another and supported by respective first and second struts, and steering means, in particular in the form of a respective handlebar, especially from which a respective steering control shaft extends, and articulated connecting means being provided between said steering means, or handlebar, and said first and second front wheels, in particular between said steering control shaft and said first and second struts for supporting said first and said second front wheels; characterized in that said first and second struts for supporting said first and said second front wheels extend tilted forward at least at the respective upstream end, at said articulated connecting means.
  • a vehicle is achieved, that allows a completely easy and safe driving for the user, and, in particular, it is further possible to configure the vehicle or bicycle so that the number of components employed is kept low and/or so that the weight of the vehicle or bicycle is kept low.
  • Fig. 1A illustrates a perspective schematic view of a preferred implementation of vehicle according to the present invention
  • Fig. 1C illustrates a perspective schematic rear view of the preferred implementation of vehicle according to the present invention
  • Fig. ID illustrates a perspective schematic view of the preferred implementation of vehicle according to the present invention, in a steering condition
  • Fig. 2 illustrates a perspective schematic view only of the front fork of the preferred implementation of vehicle according to the present invention
  • Fig. 3A illustrates a perspective schematic front view only of the articulated connecting means of the preferred implementation of vehicle according to the present invention
  • Fig. 3B illustrates a perspective schematic rear view only of the articulated connecting means of the preferred implementation of vehicle according to the present invention
  • Fig. 4A illustrates a schematic longitudinal sectional view taken at the central zone for the attachment to the shaft to the steering wheel of the preferred implementation of vehicle according to the present invention
  • Fig. 4B illustrates a schematic longitudinal sectional view taken at the lateral attachment zone of the respective strut of the preferred implementation of vehicle according to the present invention
  • Fig. 5B illustrates a perspective schematic exploded view of the articulated connecting means of the preferred implementation of vehicle according to the present invention
  • Fig. 6A illustrates a schematic side top view relating to dampening means used in the preferred implementation of vehicle according to the present invention, in a stretched or distended condition
  • Fig. 6B illustrates a schematic side top view relating to dampening means used in the preferred implementation of vehicle according to the present invention, in a compressed condition
  • Fig. 7A illustrates a schematic side top view relating to dampening means used in the preferred implementation of vehicle according to the present invention, in the two different -stretched and compressed- operative positions;
  • Fig. 7B illustrates a schematic top plan view relating to dampening means used in the preferred implementation of vehicle according to the present invention
  • the present vehicle could also be in the form of a bicycle of any other kind, for example, it could also be a so-called city bike or the like.
  • the vehicle or bicycle comprises a support frame 12, wheel means, respectively front 14 and rear 16 wheel means, with said front wheel means 14 comprising a first 141 and a second 142 wheels that are side-by-side to one another and supported by respective first and second struts 143, 144.
  • the vehicle or bicycle further comprises steering means 18, in particular in the form of a respective handlebar, especially from which a respective steering control shaft 180 extends.
  • the vehicle comprises means for sitting by the user, in particular in the form of a saddle 17’, which, as is understood, is supported by the frame 12 of the vehicle, in particular at the rear part thereof.
  • said handlebar 18 comprises a transversal elongated bar 181, preferably suitably shaped, on which means are provided, in particular a first and a second handles, for the engagement of and gripping by the user’ s hands, and which are preferably arranged at the opposite side ends 18’, 18” of the same handlebar.
  • said steering shaft, or shaft of the handlebar 180 which preferably extends until inserting into said tube 121 of the frame, centrally extends from said transversal elongated bar 181.
  • said support frame 12 comprises a steering column member 120, extending in elevation and preferably intended to the connection and support of the saddle for sitting a user 17’, an upper longitudinal member 122, extending between the upper part of said steering column member 120 and said tube for the steering wheel 121, and an oblique member 123, extending from said tube for the steering wheel 121, preferably up to the lower part of said steering column member 120.
  • a steering column member 120 extending in elevation and preferably intended to the connection and support of the saddle for sitting a user 17’
  • an upper longitudinal member 122 extending between the upper part of said steering column member 120 and said tube for the steering wheel 121
  • an oblique member 123 extending from said tube for the steering wheel 121, preferably up to the lower part of said steering column member 120.
  • frame may in any case be devised and used.
  • said front wheel means 14 comprise a first 141 and a second 142 wheels that are side-by-side to one another, and supported by respective first and second struts 143, 144 allows having a vehicle available with an improved stability.
  • means 31 for advancing by traction the vehicle are also provided.
  • said means 31 for advancing by traction the vehicle comprise corresponding actuating pedals 310 and relative motion transmission means, in particular to the rear wheel means 16, which transmission means preferably comprise a respective chain 311 and corresponding gear wheels 312, 313, respectively connected to the actuating means and to the rear wheel, and that however are not particularly illustrated in the attached figures and can be made in any suitable manner.
  • energy supply means for said motor are provided, in particular in the form of a first and a second batteries 317, 317, preferably housed om, or in, said support frame 12, especially on the oblique member 123 and on the upper longitudinal member 122 thereof.
  • articulated connecting means 20 are advantageously provided between said steering means 18, or handlebar, and said first and second front wheels 141, 142, in particular between said steering control shaft 180 and said first and second struts 143, 144 for supporting said first and said second front wheels 141, 142.
  • said first and second struts 143, 144 for supporting said first and said second front wheels 141, 142 extend tilted forward at least at the respective upstream end at said articulated connecting means 20.
  • said first and second struts 143, 144 for respectively supporting said first and second front wheels 141, 142, i.e., the corresponding longitudinal axis, extend tilted forward, starting from a respective upstream, or upper, or rear, end 143’, 144’, at said articulated connecting means 20, up to a corresponding downstream, or lower, or front, end, 143”, 144” at the respective one of said first and second front wheels 141, 142.
  • said first and second struts 143, 144 for supporting said first and said second front wheels 141, 142, at least at the respective upstream, or upper, or rear, end 143’, 144’ at said articulated connecting means 20, extend linearly or rectilinearly.
  • said first and second struts 143, 144 for supporting said first and said second front wheels 141, 142 extend rectilinearly starting from a respective upstream, or upper, or rear, end 143’, 144’, at said articulated connecting means 20, up to a corresponding downstream, or lower, or front, end, 143”, 144” at the respective one of said first and second front wheels 141, 142.
  • said first and second struts 143, 144 for supporting said first and said second front wheels 141, 142 are made of a metal tubular element, preferably with a circular section, in particular closed at the respective upstream, or upper, or rear, end 143’, 144’ by a corresponding plug 143’”, 144’”.
  • said steering control shaft 180 has an elongated, preferably rectilinear, main body, which extends starting from said steering means, i.e., from the respective handlebar, 18.
  • said steering control shaft 180 extends tilted forward, in particular starting from said steering means, or handlebar, 18.
  • said steering control shaft 180 extends tilted forward, in particular starting from said steering means, or handlebar, 18, by an angle, with respect to the vertical, ranging between 10° and 30°, optimally by an angle of about 32°.
  • the steering control shaft 180 is in the form of a metal tubular body, having a corresponding conical outermost part, and having a larger thickness, 180’, at, or in the proximity of, said articulated connecting means 20.
  • articulated connecting means 20 are provided between said steering means 18, or handlebar, and said first and second front wheels, in particular between the steering control shaft 180 and said first and second struts 143, 144 for supporting said first and said second front wheels, which articulated connecting means 20 are adapted to guide, or drive, the movement of said steering control shaft 180 and of said first and second struts 143, 144 that carry the respective first and second front wheels 141, 142, during the lateral inclination movements, or roll, of the vehicle, and/or during the movements for arranging at a different height said first and second front wheels 141, 142.
  • said means 21 which guide, or drive, the movement of said steering control shaft 180 and of said first and second struts 143, 144 that carry the respective first and second front wheels 141, 142, during the lateral inclination movements, or roll, of the vehicle, and/or during the movements for arranging at a different height said first and second front wheels 141, 142, are in the form of a mechanism of the articulated parallelogram type 21.
  • said means 21 which guide, or drive, the movement of said steering control shaft 180 and of said first and second struts 143, 144 that carry the respective first and second front wheels 141, 142, comprise an upper transversal rocker arm 211, a lower transversal rocker arm 212 and corresponding perpendicular means 210, 211, 213 that are connected to said upper and lower transversal rockers 211, 212 through corresponding rotational hinge means 215.
  • said first and second struts 143, 144 for supporting said first and said second front wheels 141, 142 extend between said upper transversal rocker arm 211 and said lower transversal rocker arm 212, in particular posteriorly to said upper transversal rocker arm 211 and anteriorly to said lower transversal rocker arm 212.
  • said upper transversal rocker arm 211 and lower transversal rocker arm 212 lie, and move, on corresponding parallel planes, with said rotational hinge means 215, which preferably lie on a same plane that is parallel and intermediate to the lying planes of said upper transversal rocker arm 211 and lower transversal rocker arm 212.
  • said perpendicular connecting means comprise a perpendicular central member 210 that comprises, or is integral to, said steering control shaft 180.
  • said perpendicular central member 210 is on the longitudinal extension of, and/or is integral to, said steering control shaft 180.
  • said perpendicular central member 210 is connected, and/or is located, respectively posteriorly to said upper transversal rocker arm 211 and anteriorly to said lower transversal rocker arm 212.
  • said perpendicular central member 210 has an upper, in particular outermost, part 210xb for the connection to said upper transversal rocker arm 211 and/or a lower, in particular outermost, part 210xc for the connection to said lower transversal rocker arm 212.
  • said perpendicular central member 210 has a respective portion 21 Oxa, projecting anteriorly with respect to said steering control shaft 180, i.e., with respect to the longitudinal extension thereof, which portion 21 Oxa defines an upper, in particular outermost, part 210xb for the connection to said upper transversal rocker arm 211 and/or a lower, in particular outermost, part 210xc for the connection to said lower transversal rocker arm 212.
  • said rotational hinge means 215 between said perpendicular central member 210 and said upper transversal rocker arm 211 and/or said lower transversal rocker arm 212 are connected to said perpendicular central member 210, i.e., to said upper, in particular outermost, part 210xb for the connection to said upper transversal rocker arm 211 and/or to the lower, in particular outermost, part 210xc for the connection to said lower transversal rocker arm 212, through corresponding pin means, or respective pin, 217, which preferably inserts perpendicularly into the respective upper, in particular outermost, part 210xb for the connection to said upper transversal rocker arm 211, especially through, or at, the outermost transversal face thereof, and/or into the respective lower, in particular outermost, part 210xc for the connection to said lower transversal rocker arm 212.
  • said perpendicular connecting means comprise opposite, in particular transversally opposite, first and second side perpendicular members 213 and 214, that are integral respectively to said first and second struts 143 and 144.
  • the respective one of said opposite first and second side perpendicular members 213 and 214 comprises an upper, in particular outermost, part 213yb, 214yb projecting superiorly and/or anteriorly with respect to the corresponding, in particular upper and/or front, face, of the corresponding first and second struts 143, 144 for supporting said first and said second front wheels 141, 142, for the connection to said upper transversal rocker arm 211, and/or a lower, in particular outermost, part 213yc, 214yc, especially projecting inferiorly and/or posteriorly with respect to the corresponding, in particular lower and/or rear, face, of the corresponding first and second struts 143, 144 for supporting said first and said second front wheels 141, 142, for the connection to said lower transversal rocker arm 212.
  • said rotational hinge means 215, between the respective one of said opposite first and second side perpendicular members 213 and 214 and said upper transversal rocker arm 211 and/or said lower transversal rocker arm 212, are connected to the respective one of said opposite first and second side perpendicular members 213 and 214, i.e., to said upper, in particular outermost, part 210xb for the connection to said upper transversal rocker arm 211 and/or to the lower, in particular outermost, part 210xc for the connection to said lower transversal rocker arm 212, through corresponding pin means, or respective pin, 219, which preferably inserts perpendicularly into the respective upper, in particular outermost, part 213xb, 214xb for the connection to said upper transversal rocker arm 211, especially through, or at, the outermost transversal face thereof, and/or in the respective lower, in particular outermost, part 210xc for the connection to said lower transvers
  • said rotational hinge means 215, between said perpendicular central member 210 and/or the respective one of said opposite first and second side perpendicular members 213 and 214, and said upper transversal rocker arm 211 and/or said lower transversal rocker arm 212, are connected to the respective upper transversal rocker arm 211 and/or to the lower transversal rocker arm 212 through corresponding seat means respectively defined by a central seat 21 sc or respective side seats 21 si thereof, provided on, or recessed in the body of, said upper transversal rocker arm 211 and/or on, or recessed in the body of, said lower transversal rocker arm 212.
  • articulated connecting means 20 are provided between said steering means 18, or handlebar, and said first and second front wheels, in particular between said steering control shaft 180 and said first and second struts 143, 144 for supporting said first and said second front wheels 141, 142, which are adapted, upon the rotation of said steering means, or handlebar, 18, to provide a corresponding rotation of said first and second front wheels 141, 142, i.e., a corresponding rotation, in particular with respect to the steering axis, of said first and second struts 141, 142, respectively bearing said first and second front wheels 143, 144.
  • articulated connecting means 20 are provided between said steering means 18, or handlebar, and said first and second front wheels, in particular between said steering control shaft 180 and said first and second struts 143, 144 for supporting said first and said second front wheels 141, 142, which comprise means 23 which are adapted, upon the rotation of said steering means, or handlebar, 18, to provide a corresponding rotation of said first and second front wheels 141, 142, i.e., a corresponding rotation, in particular with respect to the steering axis, of said first and second struts 141, 142, respectively bearing said first and second front wheels 143, 144.
  • said means 23 that provide, upon the rotation of said steering means, or handlebar, 18, a corresponding rotation, of said first and second front wheels 141, 142, are in the form of a mechanism of the articulated parallelogram type.
  • said front transversal member is defined on the whole by said upper transversal rocker arm 211 and lower transversal rocker arm 212 and in particular by perpendicular connecting means.
  • said rear transversal member is defined by a corresponding rear transversal rocker arm 231; in particular said rear transversal rocker arm 231 is located posteriorly to said front transversal member 211, 212, i.e., to said upper transversal rocker arm 211 and lower transversal rocker arm 212, and/or especially at a height level that is intermediate thereto.
  • said rear transversal rocker arm 231 is located posteriorly to said first and second struts 143, 144 for supporting said first and said second front wheels 141, 42.
  • said longitudinal connecting means comprise a central longitudinal member 210, which comprises, or is integral to, said steering control shaft 180.
  • said central longitudinal member 210 has a rear, in particular outermost, part 210xd for the connection to said rear transversal rocker arm 231, and/or an upper, in particular outermost, part 210xb, for the connection to said upper transversal rocker arm 211, and/or a lower, in particular outermost, part 210xc, for the connection to said lower transversal rocker arm 212.
  • said rotational hinge means 235 between said central longitudinal member 210 and said rear transversal rocker arm 231, are connected to said central longitudinal member 210, i.e., to said rear, in particular outermost, part 210xd for the connection to said rear transversal rocker arm 231, through corresponding pin means, or respective pin, 237, which inserts perpendicularly into the respective rear, in particular outermost, part 21 Oyd for the connection to said rear transversal rocker arm 231, especially through, at, the lower outermost transversal face thereof.
  • said longitudinal articulated connecting means comprise opposite, in particular transversally opposite, first and second side longitudinal members 213 and 214, that are integral respectively to said first and second struts 143 and 144.
  • the respective one of said opposite first and second side longitudinal members 213 and 214 comprises a rear, in particular outermost, part 213yd, 214yd, in particular projecting inferiorly and/or posteriorly with respect to the corresponding, in particular lower and/or rear, face, of the corresponding first and second supporting struts 143, 144, for the connection to said rear transversal rocker arm 231, and/or an upper, in particular outermost, part 213yb, 214yb projecting superiorly and/or anteriorly with respect to the corresponding, in particular upper and/or front, face, of the corresponding first and second supporting struts 143, 144, for the connection to said upper transversal rocker arm 211, and/or a lower, in particular outermost, part 213yc, 214yc, especially projecting inferiorly and/or posteriorly with respect to the corresponding, in particular lower and/or rear, face, of the corresponding first and second
  • said rotational hinge means 235 between the respective one of said opposite first and second side longitudinal members 213 and 214 and said rear transversal rocker arm 231, are connected to the respective one of said opposite first and second side longitudinal members 213 and 214, i.e., to said rear, in particular outermost, part 213yd, 214yd for the connection to said rear transversal rocker arm 231, through corresponding pin means, or respective pin, 239, which inserts perpendicularly into the respective rear, in particular outermost, part 213yd, 214yd for the connection to said rear transversal rocker arm 231, especially through, at, the upper outermost transversal face thereof.
  • said rotational hinge means 235 between said central longitudinal member 210 and/or the respective one of said opposite first and second side longitudinal members 213 and 214 and said rear transversal rocker arm 231, are connected to the same rear transversal rocker arm 231 through corresponding seat means respectively defined by a central seat 23 sc or respective side seats 23 si thereof, provided on, or recessed in the body of, said rear transversal rocker arm 231.
  • a respective single body 210 defines said perpendicular central connecting member 210 and said central longitudinal connecting member 210.
  • said body 210 which defines said perpendicular central connecting member and said central longitudinal connecting member, is in metal material, in particular is in the form of a shaped metal sheet.
  • a respective single body 213, 214 defines respectively the corresponding side perpendicular connecting member 213, 214 and the corresponding side longitudinal connecting member 213, 214.
  • said body 213, 214 which defines the corresponding side perpendicular connecting member and the corresponding side longitudinal connecting member, is in metal material, in particular is in the form of a shaped metal sheet.
  • the body 213, 214 which defines the corresponding side perpendicular connecting member and the corresponding side longitudinal connecting member, inserts into a through slit 143f, 144f provided in the respective one of said first and second struts 143, 144 for supporting said first and said second front wheels 141, 142; in particular the respective through slit being defined by respective slits that are provided in opposite faces of the peripheral wall of the respective tubular body defining the corresponding first or second struts 143, 144.
  • the rotational hinge means 215, 235 comprise respective planar rotational hinges or rotatable in a corresponding plane, preferably defined by corresponding bearings, 215’, 215”, 235’, 235”.
  • means 22 for the connection, in particular a direct connection, of said articulated connecting means 20 to said support frame 12 are provided, so that, when said steering means 18, or handlebar, actuate said articulated connecting means 20 to correspondingly rotate said first and second front wheels 141, 142, the same articulated connecting means 20 rotate said first and second front wheels 141, 142 while maintaining the respective virtual contact points, or centers of rotation A, B, on the ground, at, or in the proximity of, a corresponding axis orthogonal to the longitudinal axis of the vehicle.
  • said means 22, for the connection of said articulated connecting means 20 to said support frame 12 are in the form of means that, in particular when a corresponding bending route is performed, allow at least a relative movement of said articulated connecting means 20 with respect to said support frame 12.
  • said means 22 for the connection of said articulated connecting means 20 to said support frame 12 are in the form of means that, in particular when a corresponding bending route is performed, allow at least a rotation of said articulated connecting means 20 with respect to said support frame 12.
  • said means 22 for the connection of said articulated connecting means 20 to said support frame 12 are in the form of means that, in particular when a corresponding bending route is performed, allow a translation, in particular forward and backward, of the same articulated connecting means 20 with respect to said support frame 12, especially said translation having a respective shifting component according to a direction that is longitudinal with respect to the vehicle 10.
  • said means 22 for the connection of said articulated connecting means 20 to said support frame 12 comprise a spherical joint 22a allowing a corresponding rotation of said articulated connecting means 20 with respect to said support frame 12.
  • said means 22 for the connection of said articulated connecting means 20 to said support frame 12 comprise a sliding pin 22b, which allows a linear translational movement, in particular according to a direction comprising a component that is longitudinal to the vehicle, of said articulated connecting means 20 with respect to said support frame 12.
  • said spherical joint 22a is slidingly mounted on said sliding pin 22b.
  • said means 22 for the connection of said articulated connecting means 20 to said support frame 12 are connected, in particular directly connected, i.e., integral, to said support frame 12, in particular to the oblique member 123 of the same support frame 12, preferably at a zone of this oblique member 123 of the frame 12 that is closer to said tube 121 for said steering control shaft 180.
  • said means 22 for the connection of said articulated connecting means 20 to said support frame 12 are secured to said articulated connecting means 20.
  • said means 22 for the connection of said articulated connecting means 20 to said support frame 12 comprise a member 221 that is secured, in particular welded, to said support frame 12, in particular to said oblique member 123 thereof, and a member 222 that is secured to said articulated connecting means 22.
  • said member 221 secured to said frame 12 and said member 222 that is secured to said articulated connecting means 20 are connected to each other through said spherical joint 22a, which is forward and backward slidable, on said sliding pin 22b.
  • said means 26 for blocking the relative parallel movement of said steering control shaft 180 and of said first and second struts 143, 144 that carry the respective first and second front wheels 141, 142, are borne by said articulated connecting means 20.
  • said means 26 for blocking the relative parallel movement of said steering control shaft 180 and of said first and second struts 143, 144 that carry the respective first and second front wheels 141, 142 are adapted to block the rotational movement of the respective rocker arm, in particular the upper transversal rocker arm 211, i.e., of said means 21 that drive the movement of said steering control shaft 180 and of said first and second struts 143, 144 that carry the respective first and second front wheels 141, 142, during the lateral inclination movements, or roll, of the vehicle, and/or during the movements for arranging at a different height said first and second front wheels 141, 142.
  • said means 26 for blocking the relative parallel movement of said steering control shaft 180 and of said first and second struts 143, 144 that carry the respective first and second front wheels 141, 142 comprise a portion 261, preferably of, or integral to, the respective rocker arm, in particular of, or integral to, said upper rocker arm 211, and a support or reference body 260, in particular extending and connected to, i.e., secured on, said perpendicular or longitudinal central connecting member 210 of said means 21 that drive the movement of said steering control shaft 180 and of said first and second struts 143, 144 that carry the respective first and second front wheels 141, 142, during the lateral inclination movements, or roll, of the vehicle, and/or during the movements for arranging at a different height said first and second front wheels 141, 142.
  • said seat means on said portion 261, preferably of, or integral to, the respective rocker arm, in particular of, or integral to, said upper rocker arm 211 comprise a respective plurality of distributed seats 26s, in particular radially extended and angularly distributed, and in particular located in an engagement and disengagement relation by the corresponding pin 26p on said support or reference body 260, in particular extending and connected to, i.e., secured on, said perpendicular or longitudinal central connecting member 210.
  • said means 265 for the activation and deactivation of the blocking condition are adapted to move said engaging pin 26p between a retracted, or lowered, position, in which the same pin 26p is outside the respective insertion seat 26s, and an advanced or lifted position, in which the pin 26p enters the respective insertion seat 26s.
  • said means 265 for the activation and deactivation of the blocking condition comprise an activating lever 266, illustrated in Fig. 1A, in particular rotatable, especially positioned on said steering means, or handlebar, 18, which activating lever 266 can be blocked, in particular in a respective position, to activate the blocking condition, and can be unblocked, to allow deactivating said blocking condition.
  • said means 265 for the activation and deactivation of the blocking condition comprise elastic means, in particular in the form of a traction spring 269, which usually bear, i.e., which pulls, said pin 26p for its disconnection or release from the respective seat 26s; in particular said traction spring 269 operating on said elongated body 268 that bears said insertion pin 26p, acting at the opposite end of said same elongated body 268.
  • said dampening means 28 comprise a respective dampening member 280, having corresponding first and second anchoring portions 280a, 280b, in particular outermost anchoring portions, between which anchoring portions 280a, 280b the same dampening member 280 is adapted to compress and expand.
  • said first and second anchoring portions 280a, 280b of said dampening member 280 are supported on corresponding first and second support arms 281, 282, which first and second support arms 281, 282 are connected, in particular are pivoted, to the corresponding means, or strut, 143, 144 supporting the corresponding wheel 141, 142, in positions that are mutually spaced apart longitudinally, in particular respectively, as illustrated, in a lower or free outermost position of the corresponding first or second strut 143, 144 and in an intermediate position or longitudinally upstream this outermost position of the same first or second strut 143, 144, and move, in particular are mutually connected, so that said first and anchoring portions 280a, 280b move closer during the compression phases of said dampening member 280.
  • said points 280a, 280b to anchor said dampening member 280 respectively on said first and second arms 281, 282 are provided at different distances from the corresponding pivoting points 28 If, 282f of the same first and second arms 281, 282 to the corresponding first and second struts 143, 144 for supporting said first and said second front wheels 141, 142; in particular said point 280b to anchor said dampening member 280 on said second arm 282 is provided closer to the corresponding pivoting point 282f of the same second arm 282 to the corresponding second strut 144 for supporting said second front wheel 142, with respect to the distance of said anchoring point 280a, of said dampening member 280 on said first arm 281, to the corresponding pivoting point 28 If of the same first arm 281 to the corresponding first strut 143.
  • the brake caliper P is secured to the support 290, which, in turn, is integrally constrained to the same spacer member 283, the same brake caliper P also rotates with said spacer member 283, due to the action of the rotation caused by the compression of the dampening member 280, and in a direction opposite the rotation direction of the corresponding wheel 141 or 142.
  • this rotation of the same brake caliper P causes a force, or reaction, on the respective strut 243, 244, that opposes, thus mitigating, the diving of the front-wheel drive of the vehicle.
  • anti-dive means are obtained, which are particularly useful in order to have a proper attitude on descents with a bumpy surface.
  • the vehicle can be kept upright in an autonomous manner, possibly even on a respective declivity, i.e., the vehicle front wheels can be put closer to one another as much as possible, so as to minimize the transversal footprint of the same vehicle, in view of a positioning thereof in an appropriate room or on a corresponding transport means, for example posteriorly to a car or on a caravan, or other;

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Cycles, And Cycles In General (AREA)

Abstract

L'invention concerne un véhicule (10), en particulier du type cyclisme, consistant plus particulièrement en une bicyclette, et plus préférentiellement sous la forme d'un vélo tout-terrain, d'un vélo de ville ou analogue ; le véhicule comprend un cadre de support (12), des moyens roues, respectivement des moyens roues avant (14) et arrière (16), lesdits moyens roues avant (14) comprenant une première (141) et une seconde (142) roue qui se trouvent côte à côte les unes par rapport aux autres et supportées par des première et seconde entretoises respectives (143, 144), et des moyens de direction (18), en particulier sous la forme d'un guidon respectif, en particulier à partir duquel s'étend un arbre de commande de direction (180) respectif. De plus, des moyens de liaison articulés (20) sont disposés entre lesdits moyens de direction (18), ou le guidon, et lesdites première et seconde roues avant (141, 142), en particulier entre ledit arbre de commande de direction (180) et lesdites première et seconde entretoises (143, 144) pour supporter lesdites première et seconde roues avant (141, 142). Lesdites première et seconde entretoises (143, 144) pour supporter lesdites première et seconde roues avant (141, 142) s'étendent inclinées vers l'avant au moins à l'extrémité amont respective au niveau desdits moyens de liaison articulés (20).
PCT/IB2022/050461 2021-01-22 2022-01-20 Véhicule, en particulier du type cyclisme, plus particulièrement sous la forme d'une bicyclette WO2022157655A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP22708214.6A EP4281355A1 (fr) 2021-01-22 2022-01-20 Véhicule, en particulier du type cyclisme, plus particulièrement sous la forme d'une bicyclette

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT202021000000275 2021-01-22
IT202021000000275U IT202100000275U1 (it) 2021-01-22 2021-01-22 Veicolo, in particolare di tipo ciclistico, in special modo sotto forma di una bicicletta

Publications (1)

Publication Number Publication Date
WO2022157655A1 true WO2022157655A1 (fr) 2022-07-28

Family

ID=80786140

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2022/050461 WO2022157655A1 (fr) 2021-01-22 2022-01-20 Véhicule, en particulier du type cyclisme, plus particulièrement sous la forme d'une bicyclette

Country Status (3)

Country Link
EP (1) EP4281355A1 (fr)
IT (1) IT202100000275U1 (fr)
WO (1) WO2022157655A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003018390A1 (fr) * 2001-08-30 2003-03-06 Hans Leeb Zweirad Handel Gmbh Vehicule automobile dote d'une roue arriere entrainee et de deux roues avant motrices
US20040140645A1 (en) * 2001-05-21 2004-07-22 Masayasu Hayashi Tricycle
JP5270394B2 (ja) * 2009-02-10 2013-08-21 博司 守瀬 前輪二輪式三輪車
US20190367088A1 (en) * 2018-05-31 2019-12-05 Bombardier Recreational Products Inc. Steering system for a vehicle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040140645A1 (en) * 2001-05-21 2004-07-22 Masayasu Hayashi Tricycle
WO2003018390A1 (fr) * 2001-08-30 2003-03-06 Hans Leeb Zweirad Handel Gmbh Vehicule automobile dote d'une roue arriere entrainee et de deux roues avant motrices
JP5270394B2 (ja) * 2009-02-10 2013-08-21 博司 守瀬 前輪二輪式三輪車
US20190367088A1 (en) * 2018-05-31 2019-12-05 Bombardier Recreational Products Inc. Steering system for a vehicle

Also Published As

Publication number Publication date
EP4281355A1 (fr) 2023-11-29
IT202100000275U1 (it) 2022-07-22

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