• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Mechanism of variation of the geometry of a vehicle with at least two wheels. The mechanism varies the wheelbase (D) of the vehicle and the launch angle (L) of the vehicle. It comprises a first and second bodies (1, 2) linked by a first fixing element (10) and a second fixing element (11). It comprises a first adjustment set to regulate the wheelbase (D) by means of a first worm screw (7) linked to a first rotary element (6) linked in turn to a longitudinal displacement element that causes relative longitudinal displacement between the bodies (1, 2). It comprises a second set of adjustment to regulate the launch angle (L) with a second worm screw (9) linked to a second rotary element (8) linked to the second fixing element (11) eccentrically such that its movement causes the respective rotation of the bodies (1, 2). (Machine-translation by Google Translate, not legally binding)
    公开号:ES2774848A1
    申请号:ES201930041
    申请日:2019-01-22
    公开日:2020-07-22
    发明作者:Sánchez José María Marín；García Oscar Reinoso；García Luis Miguel Giménez；Castelló Luis Payá；Vidal Adrián Peidró
    申请人:Universidad Miguel Hernandez de Elche；
    IPC主号:
    专利说明:

    [0002] OBJECT OF THE INVENTION
    [0004] The present invention is included in the technical field of vehicles with at least two wheels. More specifically, a mechanism is described that allows the adjustment of the wheelbase, the launch angle and the advance of this type of vehicle.
    [0006] BACKGROUND OF THE INVENTION
    [0008] The geometry of two-wheelers, such as bicycles, mopeds and motorcycles, is essential for the stability of the vehicle and for its maneuverability while in motion. The three essential parameters that determine the geometry of two-wheelers are wheelbase, launch angle, and trail. These parameters are equally essential in vehicles with more than two wheels, such as three-wheelers or vehicles with a steer wheel.
    [0010] The wheelbase is the distance measured between the axis of rotation of the front wheel of the vehicle and the axis of rotation of the rear wheel of the vehicle. The launch angle is the angle formed between the line that marks the axis of rotation of the steering and the vertical that passes through the center of the front wheel. Advancement is determined by the distance between a vertical line that runs through the steerer tube and continues straight to the ground and the center of the steer wheel axle.
    [0012] Depending on the value adopted by these three parameters, stability while driving can be improved or more maneuverability and agility can be achieved. In the cases in which the vehicle is to be used for general use, it is sought to improve stability while driving. However, in cases where you want to use the vehicle, for example for competitions, the user seeks to have better maneuverability. Thus, currently a technical problem to be solved in this type of vehicle is to allow the user to adjust independently, simply and continuously and progressively the most interesting vehicle geometry values.
    [0014] From the state of the art some solutions are known to the problem of regulating the parameters of the geometry of a two-wheeled vehicle to allow its adaptation to the terrain, the user or the use of the vehicle itself.
    [0016] Among these solutions are devices that allow the length of the vehicle to be varied, sometimes just for the purpose of adapting to the size of the driver, others to modify stability and maneuverability. In general, the variation of the length of a two-wheeled vehicle produces an increase or a reduction in the distance between wheels, as well as the variation of the launch angle and of the advance indirectly.
    [0018] In the state of the art inventions are described that allow the regulation of several parameters, simultaneously or sequentially, other inventions are known that exclusively regulate one of them, be it the launch angle or the wheelbase, and that consequently produce changes in the other or other vehicle parameters indirectly.
    [0020] Inventions are also known that allow regulation focused on damping, to allow transit through different terrains and also for the comfort of use of different users, said regulation being normally carried out prior to the march, that is, with the vehicle stationary, and also where geometry and angles are indirectly affected.
    [0022] Documents referring to stationary bicycles are also known, in which, given the frequent use by different users, it is necessary to adjust different parameters, not only because of the different geometry in terms of the size of the rider, but also because of the different type. of training that is proposed.
    [0024] Document EP2891595A1 refers to a bicycle with a frame adaptable to different riding modes, providing an adjustable frame that allows the cyclist to gradually adjust the length between the front and rear wheel, the length between the tube or seat post and the front part , as well as the angle of inclination of the seat post and the steering column. For the bicycle described in this document It consists of an adjustable frame, comprising a bottom bracket to which the two pedals are secured, a seat post positioned obliquely, extending up and away from the bottom bracket, a chain mount, and an inclined telescopic tube that includes a first tube and a second tube telescopically attached to it. The first tube extends into the second tube, allowing the entire length of the assembly to be telescopically changed by stretching or retracting them. Additionally, the seat tube and steering post angles can be changed. The second tube extends obliquely forward out of the lower end of the seat tube and in the vicinity of the lower bracket. The invention further provides two locking devices for holding the first and second tubes after adjusting a relative position of the first and second tubes. The aforementioned locking system consists of a screw tightening.
    [0026] Document JP2007099063A discloses an electrically assisted bicycle that allows to respond widely to a change in the rider's size, by varying the horizontal distance between the handlebar and the seat, as well as the vertical distance from the seat to the pedals and the angle between the front frame that holds the handlebar and rear frame of the bike that holds the seat and pedals of a conventional bike. It comprises at least one articulation element in the frame that connects the front frame with the rear, consisting of a rotary adjustment element.
    [0028] Document EP2058217A1 describes a mechanism for adjusting the angle of attack (complementary to the angle of launch) as well as the advance in a conventional bicycle. For this, the vehicle is provided with a wheel hub with a particular configuration that allows the coupling of an insert that regulates the parameters mechanically.
    [0030] Document ES2229639T3 presents a telescopic fork that allows the advance angle to be varied to improve stability depending on the terrain. It is one of the solutions with which the stability of the vehicle is currently controlled. Finally, document EP1352821A1 is known, which consists of a bicycle that implements an extendable horizontal tube for the regulation of the distance between wheels or more specifically, the size of the bicycle in terms of its length. The tube is mechanically extended and fixed by tightening the washers incorporated for this purpose.
    [0031] DESCRIPTION OF THE INVENTION
    [0033] The present invention proposes a mechanism for varying the geometry of a vehicle with at least two wheels that allows the values of wheelbase, launch angle and vehicle advance to be adjusted independently, simply, continuously and progressively. The mechanism is intended to be installed in the vehicle itself.
    [0035] The main field of application of the adjustment mechanism of the invention are competition vehicles, in which it is essential that the vehicle be able to adapt as precisely as possible to the characteristics of the circuit and to the particular driving style of the pilot.
    [0037] The vehicle in which the mechanism is installed comprises a chassis and a steering fork between which it is placed. It is a compact mechanism with a first body and a second body linked together by means of fixing elements that, when in a tight position, maintain a solid union of the bodies and when they are in a loosened position, they can allow longitudinal movement and / or a respective rotation of the bodies. In this way, the wheelbase and launch angle of the vehicle can be directly varied, leading to a variation in the advance of the vehicle. The mechanism allows to actuate the regulations centrally.
    [0039] The mechanism comprises a first adjustment assembly that allows the distance between axes to be adjusted. It has a first worm screw that can be operated from outside the mechanism so that the user has direct access to it, without having to remove any component from the vehicle. The first worm screw is linked to a first crown that is connected to toothed wheels that move on a carved rack. When the user acts on the first worm screw and makes it rotate, its movement causes the rotation of the first crown and since the toothed wheels are integrally attached to said first crown, they rotate with it, moving on the mentioned carved rack. The toothed wheels are arranged in one of the bodies and the carved rack is arranged in the other body so that the movement of the wheel on the rack causes the movement of the bodies. This regulates the length of the mechanism and modifies the distance between axes.
    [0040] Likewise, the mechanism comprises a second adjustment assembly that makes it possible to regulate the launch angle of the vehicle and which comprises a second worm screw, which is actuated from outside the mechanism independently of the first worm. The second worm screw is linked to a second crown that includes an eccentric hole crossed by one of the fixing elements of the mechanism. The movement of said fixing element forced by the rotation of the crown when the second worm is actuated causes the rotation of one of the bodies on the toothed wheels and therefore the relative rotation of the bodies.
    [0042] As previously described, the augers can be driven independently but can also be driven simultaneously to control the geometry parameters in a coordinated way.
    [0044] Thus, one of the advantages of the proposed mechanism with respect to the solutions known from the state of the art is that it is not necessary to disassemble the steering system of the vehicle to make adjustments to the geometry. Furthermore, the setting of the parameters is carried out from outside the mechanism. The fastening elements and the endless screws are operated with common tools of general use, not being necessary the manufacture of specific adjustment tools.
    [0046] Another important advantage of the mechanism of the invention is that the adjustment is progressive by eliminating interchangeable parts or interposed elements such as calibrated washers, as do other known systems of the state of the art. Thanks to this, any value can be adopted within a maximum-minimum range.
    [0048] The mechanism also allows the geometry to be adjusted even with the vehicle running. In an exemplary embodiment, it may comprise at least one motor by means of which one or the endless screws is driven. This allows an automatic adjustment of the geometry of the vehicle, adapting it to the terrain on which it circulates.
    [0050] DESCRIPTION OF THE DRAWINGS
    [0052] To complement the description that is being made and in order to help a better understanding of the characteristics of the invention, according to a preferred example of practical realization thereof, it is attached as an integral part of said description, a set of drawings where, with an illustrative and non-limiting nature, the following has been represented:
    [0054] Figure 1.- Shows a view of the adjustment mechanism installed in a two-wheeled vehicle.
    [0056] Figure 2.- Shows a detailed view of the adjustment mechanism.
    [0058] Figure 3.- Shows a sectioned perspective view of the adjustment mechanism.
    [0060] Figure 4.- Shows a sectioned profile view of the adjustment mechanism in an embodiment in which it comprises two motors for automatic adjustment of the geometry parameters.
    [0062] PREFERRED EMBODIMENT OF THE INVENTION
    [0064] Below, some embodiments of the present invention are described with the aid of FIGS. 1 to 4.
    [0066] The adjustment mechanism can be installed in a vehicle with at least two wheels, such as a bicycle, a moped, a three-wheeled vehicle, etc. Figure 1 shows the adjustment mechanism installed in a two-wheeled vehicle. Furthermore, in said figure the distance between axes (D), the launch angle (L) and the advance (A) of the vehicle have been indicated. These are the parameters of the vehicle's geometry that are modified with the proposed mechanism.
    [0068] A detailed view of the mechanism is presented in figure 2. The vehicle in which the mechanism is installed comprises a chassis and a steering fork and the geometry of the vehicle is determined by a wheelbase (D) of the vehicle and by a launch angle (L).
    [0070] The proposed mechanism is compact and comprises a first body (1) attached to the vehicle chassis or that is part of said chassis, and a second body (2) attached to the steering fork or that is part of said steering fork. . Said first body (1) and second body (2) are linked by a first element of fixing (10) and a second fixing element (11) as seen in said figure 2.
    [0072] Likewise, to allow the adjustment of the geometry, the mechanism comprises a first adjustment assembly that allows to adjust the distance between axes (D). Said first adjustment assembly can be seen in figure 3 and comprises a first worm screw (7) linked to a first crown (6). Said first crown (6) in turn is integrally connected to at least one toothed wheel (5) with the possibility of displacement on at least one carved rack arranged inside the second body (2). The rotation of the gear wheel (5) causes the relative longitudinal displacement between the second body (2) and the first body (1).
    [0074] Likewise, the mechanism comprises a second adjustment assembly that allows the launch angle (L) to be adjusted. This second adjustment mechanism is also seen in figure 3 and comprises a second worm screw (9) linked to a second crown (8). The second crown (8) in turn comprises an eccentric hole (12) crossed by the second fixing element (11) such that the movement of the second fixing element (11) is forced by the rotation of the second crown (8), causes the rotation of the second body (2) on at least one gear wheel (5) and therefore the relative rotation between said bodies (1,2).
    [0076] One of the advantages of the mechanism of the invention is that the first worm screw (7) and the second worm screw (9) have the possibility of independent or simultaneous drive.
    [0078] Preferably the mechanism comprises two gear wheels (5) arranged laterally on the first crown (6) and also preferably comprises two carved racks, each one arranged in correspondence with one of the gear wheels (5).
    [0080] In an exemplary embodiment, at least one of the bodies (1, 2) comprises a first slot (13) traversed by the first fixing element (10) such that it limits the relative longitudinal displacement between the first body (1) and the second body (2). In the embodiment shown in the figures (as seen in figure 3), the first slot (13) is arranged in the second body (2).
    [0081] In another embodiment, at least one of the bodies (1,2) comprises a second slot (14) traversed by the second fixing element (11) such that it limits the relative rotation between the first body (1) and the second body (2). In the embodiment shown in the figures (as seen in figure 3), the second slot (14) is arranged in the second body (2).
    [0083] In the embodiment shown in Figures 2 and 3, the first body (1) comprises a projection (16) with grooves (17) intended to receive arms (18) of a fork (19) of the second body (2 ). The linking of the bodies (1, 2) is carried out, as previously described, by means of fixing elements (10) and (11) that in this case protrude through the first body (1) (shown in figure 2) and that pass through said first body (1) on one side of the projection (16) and extend to the corresponding elements of the adjustment assemblies.
    [0085] In the embodiment shown in Figures 2 and 3 it is also observed that one of the bodies (1, 2) may comprise a first hole (3) and a second hole (4) in correspondence with the endless screws (7, 9 ) that allow access to said endless screws (7, 9). In this case the holes (3, 4) are arranged in the first body (1), in the projection (16).
    [0087] Likewise, figure 4 shows an embodiment in which the mechanism additionally comprises at least one motor (15) connected to the first worm (7) and / or to the second worm (9). In this case, an embodiment is shown in which the mechanism comprises two motors (15), one of them linked to the first screw (7) and the other linked to the second screw (9). In this way, it is possible to automate the movements by placing motors in the system, being able to operate the mechanism even while running to adapt to the section of the circuit and the instantaneous driving conditions.
    权利要求:
    Claims (13)
    [1]
    1. - Mechanism of variation of the geometry of a vehicle with at least two wheels that comprises a chassis and a steering fork and the geometry of the vehicle is determined by a wheelbase (D) of the vehicle and by a launch angle ( L) and is characterized by being compact and comprising:
    - a first body (1) attached to the chassis of the vehicle or which is part of said chassis;
    -a second body (2) attached to the steering fork or that is part of said steering fork,
    wherein said first body (1) and second body (2) are linked by a first fixing element (10) and a second fixing element (11);
    and because it additionally comprises:
    -a first set of adjustment that allows to adjust the distance between axles (D) and that includes:
    - a first worm screw (7), arranged in the first body (1), linked to a first rotating element (6) which in turn is linked to a longitudinal displacement element arranged in the second body (2), such that when the first worm screw (7) is actuated, the relative longitudinal displacement between the first body (1) and the second body (2) occurs;
    -a second set of adjustment that allows to regulate the launch angle (L) and that includes:
    - a second worm screw (9), arranged in the first body (1), linked to a second rotating element (8) linked to the second fixing element (11) in an eccentric way such that when the second worm screw (9) is actuated The rotation of the second rotating element (8) is forced with the second fixing element (11) which causes the rotation of the second body (2) on the second rotating element (8) and therefore the relative rotation between said bodies (1, two);
    in which the first screw (7) and the second screw (9) have the possibility of independent or simultaneous drive.
    [2]
    2. - Mechanism of variation of the geometry of a vehicle with at least two wheels according to claim 1 characterized in that the first rotating element (6) is a first crown.
    [3]
    3. - Mechanism for varying the geometry of a vehicle with at least two wheels according to any one of the preceding claims, characterized in that the first rotating element (6) is attached to an additional rotating element (5) through which it is linked to the longitudinal displacement element.
    [4]
    4. - Mechanism of variation of the geometry of a vehicle with at least two wheels according to claim 3 characterized in that the additional rotation element (5) is a gear wheel and the longitudinal movement element is a carved rack arranged inside of the second body (2) in such a way that the gear wheel has the possibility of movement by said rack.
    [5]
    5. - Mechanism for varying the geometry of a vehicle with at least two wheels according to any one of the preceding claims, characterized in that the second rotation element (8) comprises an eccentric hole (12) crossed by the second fixing element ( eleven).
    [6]
    6. - Mechanism of variation of the geometry of a vehicle with at least two wheels according to claim 1 characterized in that the first fixing element (10) is linked to the first rotating element (6) configured to allow or restrict its movement and the The second fixing element (11) is linked to the second rotating element (8) configured to allow or restrict its movement.
    [7]
    7. - Mechanism of variation of the geometry of a vehicle with at least two wheels according to claim 3 characterized in that it comprises two additional rotation elements (5) arranged laterally in the first rotation element (6).
    [8]
    8. - Mechanism of variation of the geometry of a vehicle with at least two wheels according to claim 3 characterized in that it comprises two longitudinal displacement elements, each one arranged in correspondence with one of the additional rotation elements (5).
    [9]
    9. - Mechanism for variation of the geometry of a vehicle with at least two wheels according to any one of the preceding claims characterized in that at least one of the bodies (1, 2) comprises a first slot (13) traversed by the first element fixing (10) such that it limits the relative longitudinal displacement between the first body (1) and the second body (2).
    [10]
    10. - Mechanism for changing the geometry of a vehicle with at least two wheels according to any one of the preceding claims characterized in that one of the bodies (1,2) comprises a second slot (14) traversed by the second fixing element (11) such that it limits the relative rotation between the first body (1) and the second body (2).
    [11]
    11. - Mechanism of variation of the geometry of a vehicle with at least two wheels according to any one of the preceding claims characterized in that one of the bodies (1, 2) comprises a first hole (3) and a second hole (4) in correspondence with the endless screws (7, 9) that allow access to said endless screws (7, 9).
    [12]
    12. - Mechanism for varying the geometry of a vehicle with at least two wheels according to any one of the preceding claims, characterized in that it additionally comprises at least one motor (15) connected to the first worm screw (7) and / or to the second screw endless (9).
    [13]
    13. - Mechanism for varying the geometry of a vehicle with at least two wheels according to any one of the preceding claims characterized in that the first body (1) comprises a projection (16) with two slots (17) intended to receive arms (18) of a fork (19) of the second body (2).
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    同族专利:
    公开号 | 公开日
    ES2774848B2|2021-03-02|
    WO2020152383A1|2020-07-30|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US4909537A|1989-03-06|1990-03-20|Tratner Alan A|Universal vehicle for pedaling or the like|
    DE19507921A1|1995-03-07|1996-09-12|Hans Schauff Fahrradfabrik|Bicycle frame with guide sliding in tube for shortening for transport|
    DE10135622A1|2001-07-21|2003-02-06|Bayerische Motoren Werke Ag|Child's bicycle has extension element connected to forward end section of main frame tube and axially adjustable, and steering column is fastened at forward end of extension element|
    WO2007039682A1|2005-10-04|2007-04-12|Promiles|Adjustable frame bicycle|
    CN108248744A|2016-12-29|2018-07-06|天津灵燕工贸有限公司|A kind of Novel stretchable cycle frame|
    法律状态:
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    优先权:
    申请号 | 申请日 | 专利标题
    ES201930041A|ES2774848B2|2019-01-22|2019-01-22|MECHANISM OF VARIATION OF THE GEOMETRY OF A VEHICLE WITH AT LEAST TWO WHEELS|ES201930041A| ES2774848B2|2019-01-22|2019-01-22|MECHANISM OF VARIATION OF THE GEOMETRY OF A VEHICLE WITH AT LEAST TWO WHEELS|
    PCT/ES2020/070041| WO2020152383A1|2019-01-22|2020-01-21|Mechanism for the variation of the geometry of an at least two-wheeled vehicle|
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