WO2021010825A1 - Dispositif comprenant un élément de sortie rotatif et un mécanisme d'entraînement pour entraîner l'élément de sortie - Google Patents

Dispositif comprenant un élément de sortie rotatif et un mécanisme d'entraînement pour entraîner l'élément de sortie Download PDF

Info

Publication number
WO2021010825A1
WO2021010825A1 PCT/NL2020/050453 NL2020050453W WO2021010825A1 WO 2021010825 A1 WO2021010825 A1 WO 2021010825A1 NL 2020050453 W NL2020050453 W NL 2020050453W WO 2021010825 A1 WO2021010825 A1 WO 2021010825A1
Authority
WO
WIPO (PCT)
Prior art keywords
driving unit
drive shaft
shaft component
driving
output element
Prior art date
Application number
PCT/NL2020/050453
Other languages
English (en)
Inventor
Mike Antoon Jozef Naber
Original Assignee
Naber Holding B.V.
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 Naber Holding B.V. filed Critical Naber Holding B.V.
Publication of WO2021010825A1 publication Critical patent/WO2021010825A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M3/00—Construction of cranks operated by hand or foot
    • B62M3/02—Construction of cranks operated by hand or foot of adjustable length
    • B62M3/04—Construction of cranks operated by hand or foot of adjustable length automatically adjusting

Definitions

  • the invention relates to a device having a rotatable output element and a driving mechanism for driving the output element.
  • a possible field of application of the invention is the field of foot or hand driven apparatus such as bicycles.
  • the use of the electric bicycle fulfills the need of being able to cycle at less force.
  • the use of the electric bicycle has disadvantages. For instance, an electric bicycle is many times more expensive than a conventional bicycle that can only be driven in a mechanical fashion. Further, an electric bicycle has a larger environmental impact. Besides the fact that the electric bicycle involves additional parts such as the above-mentioned electric motor and the above-mentioned battery, it is also necessary to charge the battery at a regular basis.
  • WO 2009/101637 A2 discloses a bicycle having a driving system in which a slideable position of the respective cranks of the driving system relative to a rotation axis is provided, wherein each of the cranks always has a longest arm when the crank has a horizontal orientation and the pedal that is connected to the crank has a front position.
  • the pedals are guided along a circular path, and the rotation axis as mentioned is at another position than a central axis of the circular path in order to obtain the sliding movement of the cranks as desired.
  • a disadvantage of the driving system known from WO 2009/101637 A2 is that it may be so that the pedals are guided in a circular path, but the movement of the pedals is nevertheless not of a natural fashion, meaning that the movement is different than in the case of a conventional driving system.
  • the pedals are always opposite to each other on a line that intersects with the rotation axis, i.e. not on a line that intersects with the central axis of the circular path.
  • the invention provides a lighter way of cycling while the user/cyclist still experiences a normal movement of the pedals with associated normal forces.
  • the invention provides a device having a rotatable output element and a driving mechanism for driving the output element, wherein the driving mechanism comprises a first driving unit and a second driving unit, wherein each of the first driving unit and the second driving unit comprises a rotatable drive shaft component and a drive member that is configured to put the drive shaft component in rotation under the influence of a force exerted on the drive member from outside of the device, wherein the drive shaft component and the output element are couplable to each other in order to realize a transmission of a rotation of the drive shaft component generated by the drive member to the output element, and wherein the device comprises a coupling mechanism that is configured to let each of the drive shaft component of the first driving unit and the drive shaft component of the second driving unit be in a coupled condition of coupling to the output element along at least a part of a complete rotation thereof and apart from that in a decoupled condition of decoupling from the output element and to effectuate in the process that, at least during the largest part of the coupled condition of the drive shaft component of the
  • the invention provides a way of driving a rotatable output element.
  • a driving mechanism is provided and designed as defined above.
  • the output element can be a sprocket wheel or another type of gear, for example, generally a component of a transmission, or a wheel of a vehicle such as a bicycle, for example, in the case that there is no need for transmission functionality between the driving mechanism and such a wheel, or a shaft portion that is suitable for receiving a gear or other component, for example.
  • the driving mechanism comprises a first driving unit and a second driving unit, wherein each of the first driving unit and the second driving unit comprises a rotatable drive shaft component and a drive member that is configured to put the drive shaft component in rotation under the influence of a force exerted on the drive member from outside of the device.
  • the driving mechanism can particularly be designed to be operated by both feet or both hands of a user.
  • the first driving unit and second driving unit as mentioned are provided.
  • Both driving units comprise a rotatable drive shaft component and a drive member for putting the drive shaft component to rotation.
  • the drive shaft component can be a drive shaft of any shape, or another type of component that can be put to motion under the influence of a force exerted on the drive member from outside of the device.
  • the force as mentioned can be muscle force exerted on the drive member, for example, which does not alter the fact that the invention can be applicable in fields in which an input force on the driving mechanism is a machine force.
  • the drive shaft component and the output element are couplable to each other so that a rotation of the drive shaft component generated by the drive member can be transmitted to the output element.
  • a coupling mechanism is provided that is configured to let each of the drive shaft component of the first driving unit and the drive shaft component of the second driving unit be in a coupled condition of coupling to the output element along at least a part of a complete rotation thereof and apart from that in a decoupled condition of decoupling from the output element and to effectuate in the process that, at least during the largest part of the coupled condition of the drive shaft component of the one driving unit, the drive shaft component of the other driving unit is in the decoupled condition.
  • the coupling mechanism is capable of alternately coupling the drive shaft component of the first driving unit and the drive shaft component of the second driving unit to the output element, possibly with a small extent of overlap.
  • the invention enables a situation in which such a fixed relation relative to the rotation axis is not essential, as a result of which there are better options of realizing a natural feel to a user in a situation in which a rotation axis of the driving mechanism and a central axis of a circular path of pedals or such parts of the drive members do not coincide, wherein also a maximum arm length of the drive members can be provided at an advantageous moment of the rotation.
  • the invention provides an interruption of the drive shaft as it were, i.e. a division of the drive shaft in a first portion that is connected to the output element and further two portions which are part of the driving units and which are alternately coupled to the first portion during operation.
  • the drive member comprises a lever, wherein a longitudinal axis of the lever intersects with a rotation axis of the drive shaft component.
  • a crank or another component generally shaped as an arm is a practical example of such a lever.
  • each of the first driving unit and the second driving unit may be slideable relative to the drive shaft component, wherein each of the first driving unit and the second driving unit comprises a guiding mechanism for guiding a guiding portion of the lever along a circular path having a central axis that is at a distance from the rotation axis of the drive shaft component and that extends parallel relative to the rotation axis of the drive shaft component.
  • the lever can be a crank and the guiding portion of the lever can be a portion of the crank at the position of a pedal that is connected to the crank.
  • the pedals can be moved along circular paths having central axes which do not coincide with the rotation axes of the drive shaft components of the driving units.
  • an important difference relative to the disclosure of WO 2009/101637 A2 resides in an enlarged extent of freedom to allow for advantageous relative positions of the pedals on the circular paths, as has already been elucidated in the foregoing.
  • the rotation axis of the drive shaft component of the first driving unit and the rotation axis of the drive shaft component of the second driving unit coincide to a common rotation axis of the driving mechanism, wherein the central axis of the circular path of the guiding mechanism of the first driving unit and the central axis of the circular path of the guiding mechanism of the second driving unit coincide to a common central axis of the driving mechanism.
  • the driving mechanism can be provided in which the levers move about the same rotation axis, and in which the circular paths, seen in the direction of the rotation axis and the central axis, are aligned relative to each other.
  • each of the guiding mechanism of the first driving unit and the guiding mechanism of the second driving unit comprises a rotatable ring, wherein the device comprises a
  • synchronization mechanism that is configured to synchronize rotations of the ring of the guiding mechanism of the first driving unit and the ring of the guiding mechanism of the second driving unit.
  • the drive member in each of the first driving unit and the second driving unit, the drive member has a defined portion for receiving a force exerted from outside of the device.
  • the drive member may comprise a combination of a crank and a pedal, for example, wherein the pedal constitutes the defined portion of the drive member for receiving an input force in that case.
  • the mechanism for alternately coupling the drive shaft component of the first driving unit and the drive shaft component of the second driving unit to the output element can be designed in various practical ways.
  • the coupling mechanism comprises a rotatable coupling element that is fixedly connected to the output element, wherein the first driving unit and the second driving unit are located on either side of the coupling element, wherein, in each of the first driving unit and the second driving unit, the drive shaft component is slideable in a direction in which its rotation axis extends, and wherein the coupling mechanism is configured to effectuate a transition of the decoupled condition to the coupled condition of the drive shaft component in each of the first driving unit and the second driving unit on the basis of a sliding movement of the drive shaft component to a position of engagement on the coupling element, and to effectuate a transition of the coupled condition to the decoupled condition of the drive shaft component on the basis of a sliding movement of the drive shaft component away from the position of engagement to the coupling element.
  • a rotatable coupling element is applied that is fixedly connected to the output element, wherein the drive shaft components are slid towards the coupling element at a certain point in the rotating movement in an alternating fashion to come into engagement therewith, and are slid away from the coupling element at another certain point in the rotating movement in order to detach therefrom.
  • the coupling mechanism comprises at least one recessed portion of the drive member for leaving space for a sliding movement of the drive shaft component towards the drive member when the at least one recessed portion of the drive member is located at the position of an end portion of the drive shaft component that is located at the side of the drive member.
  • the drive shaft component is biased towards one of the coupled condition and the decoupled condition.
  • the drive shaft component is slid in the one direction under the influence of contact to a shaped contact surface of the drive member and is slid back in the other direction under the influence of biasing means as soon as the shaped contact surface as mentioned leaves space for doing so at the position of a recessed portion thereof.
  • a friction coupling between the drive shaft components and the coupling element may be provided.
  • the coupling element is provided with a toothing on either side thereof, wherein, in each of the first driving unit and the second driving unit, an end portion of the drive shaft component that is located at the side of the coupling element is provided with a toothing that is designed to engage on the toothing at the coupling element at the respective side of the coupling element.
  • a first driving phase in which the drive shaft component of the first driving unit is in the coupled condition and the drive shaft component of the second driving unit is in the decoupled condition
  • a first transition phase in which the drive shaft component of the second driving unit transits from the decoupled condition to the coupled condition and the drive shaft component of the fist driving unit transits from the coupled condition to the decoupled condition
  • a second driving phase in which the drive shaft component of the first driving unit is in the decoupled condition and the drive shaft component of the second driving unit is in the coupled condition
  • a second transition phase in which the drive shaft component of the first driving unit transits from the decoupled condition to the coupled condition and the drive shaft component of the second driving unit transits from the coupled condition to the decoupled condition.
  • the drive shaft components transit from the one condition to the other, it is noted that they can in fact take place in a short time, namely when the decoupling of the drive shaft component of the one driving unit and the coupling of the drive shaft component of the other driving unit are established at practically the same moment.
  • the coupling mechanism is designed such that a period of overlap is realized, in which case the transition phases take more time.
  • the coupling mechanism is configured to effectuate, at a transition of the coupled condition to the decoupled condition of the drive shaft component of the one driving unit, a transition of the decoupled condition to the coupled condition of the drive shaft component of the other driving unit, and is further configured to allow, at the transition of the coupled condition to the decoupled condition of the drive shaft component of the one driving unit, a complete disengagement of the drive shaft component from the coupling element no earlier than when, at the transition of the decoupled condition to the coupled condition of the drive shaft component of the other driving unit, the engagement of the drive shaft component on the coupling element is complete.
  • the coupling element and the drive shaft components are provided with a toothing, for example, as has been mentioned in the foregoing as possibility, it may be so that there is a period of overlap during the time of rotation of one tooth to a following tooth.
  • the invention further relates to a bicycle or similar foot or hand driven apparatus, comprising a device as has been defined and described in the foregoing, wherein drive shaft components of two driving units are alternately coupled to an output element during operation.
  • figure 1 diagrammatically shows parts of the invention according to the invention as well as parts of a bicycle that is provided with the device
  • figure 2 diagrammatically shows a perspective view of the device according to the invention, a rear wheel of the bicycle, and a drive chain,
  • figure 3 illustrates possible positions of parts of the device according to the invention
  • figure 4 diagrammatically shows a perspective view of parts of the device according to the invention
  • FIGS 5-7 diagrammatically show sectional views of parts of the device according to the invention.
  • the invention relates to a device having a rotatable output element and a driving mechanism for driving the output element.
  • Figures 1-7 relate to such a device and an application thereof in a bicycle. For the sake of completeness, it is noted that this does not mean that the invention is limited to such an application. Where indications such as“front” and“rear” are used in the following, they need to be understood so as to be related to a normal orientation and moving direction of the bicycle.
  • Figure 1 shows a number of parts of a bicycle 1 , particularly a frame 2, a front wheel 3, a rear wheel 4, and a drive chain 5.
  • the rear wheel 4 and the drive chain 5 can also be seen in figure 2.
  • the drive chain 5 is provided as a closed loop and arranged around two sprocket wheels.
  • One sprocket wheel is located on the rear wheel 4 and can be part of an assembly of several sprocket wheels, in which case a gearing mechanism is provided to enable displacement of the drive chain 5 between the sprocket wheels, in a way that is known per se and will not be elucidated further in the context of the present text.
  • Another sprocket wheel 6 is part of the device 10 according to the invention and can be driven by means of a driving mechanism 20 that is also part of the device 10 according to the invention.
  • the entirety of sprocket wheel 6 and driving mechanism 20 is attached on the frame 2 of the bicycle 1 by means of two plates 7, 8.
  • the shown application of the two plates 7, 8 is only an example of many possibilities to connect the entirety of sprocket wheel 6 and the driving mechanism 20 to the frame 2 of the bicycle 1 , including possibilities in which such plates 7, 8 can be omitted, for example, possibilities in which connection positions for the entirety as mentioned are integrated in the frame 2.
  • a conventional driving mechanism for a sprocket wheel of a bicycle comprises on either side of the bicycle a combination of a crank and a pedal, wherein the pedal is rotatably connected on a free end of the crank, while the crank is connected to a rotatable drive shaft of the driving mechanism at its other end.
  • the respective combinations of crank and pedal are mounted in a position of being rotated along 180° about a rotation axis of the driving mechanism, which rotation axis coincides with a central longitudinal axis of the drive shaft.
  • a user/cyclist can drive the bicycle by seating himself/herself on the bicycle, placing his/her feet on the pedals and perform such a movement with the feet on the basis of muscle force that the drive shaft is put to rotation. In the process, the pedals follow a circular path about the rotation axis.
  • the driving mechanism 20 of the device 10 according to the invention comprises a first driving unit 21 and a second driving unit 22, which are each provided with a drive member designed as a combination of a crank 23 and a pedal 24.
  • the driving mechanism 20 of the device 10 according to the invention can be operated in the same way as a conventional driving mechanism. Also, in the driving
  • the pedals 24 can move along a circular path, wherein the pedals 24 are constantly in a relative position in which they are rotated along 180° relative to a central axis Ac of the circular path.
  • a user/cyclist of a bicycle 1 that is equipped with a device 10 according to the invention does not need to do anything different from what he/she is used to do in the context of convention bicycles for the purpose of moving the bicycle, and does not need to have a different experience in the process, expect for the fact that less force is needed as will be elucidated later in this description.
  • crank 23 is slidable relative to the rotation axis AR and measures are taken to achieve that the distance between the pedal 24 and the rotation axis AR is the largest in the part of the turn as mentioned.
  • the fact is that the torque that is generated is the product of the exerted force and the arm.
  • the crank 23 is slidably arranged in each of the driving units 21 , 22, while the portion of the crank 23 where the pedal 24 is located is guided along a circular path during operation.
  • a rotatably arranged circular ring 25 is provided in each of the driving units 21 , 22 and the portion of the crank 23 as mentioned is connected to the ring 25 in such a hinging way to allow the continuous changing of the orientation of the crank 23 relative to the ring 25 during a turn.
  • the rotation axis AR of the movement of the crank 23 is typically at a distance from a central axis Ac of the ring 25, as can clearly be seen in the
  • crank 23 of the driving units can extend in mutually different directions.
  • the cycling movement has a natural feel to a user/cyclist because only the relative positioning of the pedals 24 is relevant in that respect.
  • Figure 3 illustrates how the pedals 24 move along with the rings 25 and how the associated positioning of the cranks 23 turns out to be in that case.
  • the cranks 23 are depicted in continuous lines in respect of a first possible position of cranks 23 and pedals 24, while the cranks 23 are depicted in interrupted lines in respect of a second possible position of cranks 23 and pedals 24. It appears from the figure that the pedals 24 are always positioned relative to each other according to a rotation along 180° about the central axis Ac, while the cranks 23 extend from the pedals 24 to a position of intersection with the rotation axis AR.
  • the rings 25 of the driving units 21 , 22 are of the same size and aligned relative to each other.
  • a synchronization mechanism 30 is provided.
  • this synchronization mechanism 30 comprises a rotatable axis 31 that is provided with a gear 32 on either side.
  • the rings 25 are provided with a toothing 25 at their inner periphery and the gears 32 of the synchronization mechanism 30 engage thereon. In this way, it is guaranteed that the rings 25 always perform the same movement during operation.
  • each of the rings 25 runs on three guiding shafts 26 which as connected to the frame 2 of the bicycle 1 in a direct or indirect fashion.
  • the application of the guiding shafts 26 as mentioned is only an example of a practical possibility to support the rings 25 and to guide the rings 25 in their rotating movement.
  • cranks 23 are slidable in holder elements 27 which are rotatable about the rotation axis AR.
  • the holder elements 27 can be designed in any suitable way and may each comprise a pair of rollers to guide the cranks 23 in their sliding movement, for example.
  • the above-described fixed relation of the pedals 24 about the central axis Ac, wherein the cranks 23 and thus the holder elements 27 are always in different orientations relative to each other is realized by the application of a coupling mechanism 40. The way in which this works will be elucidated in the following on the basis of figures 5-7.
  • the sprocket wheel 6 in its capacity of output element of the device 10 according to the invention is arranged on a rotatable, split housing 41 of the coupling mechanism 40.
  • the housing 41 is connected to the fixed world through a number of bearings 42.
  • a coupling element 43 is disposed that is fixed to the other parts of the housing 41 so as to rotate along therewith, so that it is rotatable as well.
  • the first driving unit 21 and the second driving unit 22 are located on either side of the coupling element 43.
  • Each of the driving units 21 , 22 comprises a drive shaft component 28 of which a portion extends in the holder element 27 and is slidable therein in the direction of the rotation axis AR, and of which another portion constitutes a disc-shaped end portion 28a.
  • a pressing spring 44 is provided to press the drive shaft component 28 against a portion of the crank 23 that is located in the holder element 27.
  • the holder element 27 is partially received in the housing 41. Between the holder element 27 and the housing 41 , bearings 45 are provided to account for speed differences which can occur between the holder element 27 and the housing 41 during operation.
  • the crank 23 is provided with a relief pattern 23a on a surface that faces the drive shaft component 28 and is in continuous contact thereto under the influence of the action of the pressing spring 44. As a consequence of the presence of the relief pattern 23a in the crank 23, at least one recessed portion 23b can be distinguished in the crank 23.
  • the drive shaft component 28 is connected to the coupling element 43 through its disc-shaped end portion 28a and the coupling element 43 rotates along with the drive shaft component 28 as a consequence thereof.
  • This coupled condition of the drive shaft component 28 is illustrated at the left side of figures 5-7.
  • a portion 28b of the drive shaft component 28 that is configured to be in contact to the surface of the crank 23 that is provided with the relief pattern can be designed in any suitable way and comprise an insert, for example, which insert can be rotatably arranged, for example, in which case rolling contact between the portion 28b of the drive shaft component 28 and the crank 23 is enabled. In general, it is advantageous when the portion 28b of the drive shaft component 28 is designed to minimize friction to the crank 23.
  • the relief patterns 23a of the cranks 23 are designed in such a way that when the drive shaft component 28 of the one driving unit 21 , 22 is in the coupled condition, the drive shaft component 28 of the other driving unit 21 , 22 is in the decoupled condition.
  • the design is such that when a recessed portion 23b of the crank 23 is located at the position of the holder element 27 in the one driving unit 21 , 22, this is not the case in the other driving unit 21 , 22.
  • the design is adapted to allow transitions between the coupled condition and the decoupled condition to take place in the driving units 21 , 22 more or less simultaneously or with some extent of overlap.
  • crank 23 and pedal 24 are alternately used to drive the sprocket wheel 6.
  • the design of this arrangement to be so that a combination of crank 23 and pedal 24 is coupled to the sprocket wheel 6 when the pedal 24 of this combination is located at the front side of the turn in an area between the highest position and the lowest position, the concept of realizing the longest arm of the crank 23 when the force on the pedals 24 is the largest is put to practice in an optimal fashion.
  • the invention provides a movement of the pedals 24 that is comparable to the movement of the pedals in a conventional situation, and, on the other hand, improved effectiveness of the exerted muscle force relative to the conventional situation, which involves a lighter pedaling sensation for the user/cyclist for achieving a certain speed of the bicycle 1 , and which also enables the user/cyclist to realize a higher speed of the bicycle 1 with a certain force as a consequence thereof.
  • the invention provides the possibility of having a rotation circle of the pedals 24 that has conventional dimensions and generating a torque which would require a larger rotation circle in the conventional situation, and to which end the cranks 23 would logically need to be longer. Calculations which have been done in the framework of the invention indicate that the result of an application of the invention can be comparable to an extension of the cranks 23 in a conventional situation of as much as 25%.
  • the invention is not at all limited to the described application of a pressing spring 44, a relief pattern 23a in the cranks 23, etc.
  • the coupling mechanism 40 comprises biasing means, and when biasing means are applied, they can be of another set-up. Every possible way of coupling and decoupling at the position of the drive shaft components 28 and the output element 6 is within the scope of the invention.
  • the drive shaft components 28 can be movable in another way, as is the case in the described example, but that is not necessary.
  • a coupling element 43 is applied more or less in the way as shown and described, it can be so that this coupling element 43 is provided with slidably arranged portions which are extended and retracted in a specific way.
  • a friction coupling is provided, but it is also possible that surfaces which are intended to alternately engage on each other and move away from each other are provided with a toothing, for example.
  • the driving units 21 , 22 can comprise the combination of crank 23 and pedal 24, especially when it is desired to apply the invention and still enable a user to perform a conventional (natural) cycling movement. That does not alter the fact that the invention also relates to variants in which the drive members are of a different design and/or designed to at least partially perform another movement.
  • the invention provides a device 10 having a rotatable output element 6 and a driving mechanism 20 for driving the output element 6, which is suitable to be applied in a bicycle 1 , for example.
  • the driving mechanism 20 comprises a first driving unit 21 and a second driving unit 22, wherein each of the first driving unit 21 and the second driving unit 22 comprises a rotatable drive shaft component 28 and a drive member 23, 24 that is configured to put the drive shaft component 28 in rotation under the influence of a force exerted on the drive member 23, 24 from outside of the device.
  • the drive shaft component 28 and the output element 6 are couplable to each other so that a rotation of the drive shaft component 28 generated by the drive member 23, 24 can be transmitted to the output element 6.
  • the device 10 comprises a coupling mechanism 40 that is configured to alternately couple the drive shaft component 28 of the first driving unit 21 and the drive shaft component 28 of the second driving unit 22 to the output element 6, possibly with a small extent of overlap.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

L'invention concerne un dispositif comprenant un élément (6) de sortie rotatif et un mécanisme d'entraînement pour entraîner l'élément (6) de sortie, qui est approprié pour être utilisé dans une bicyclette, par exemple. Le mécanisme d'entraînement comprend une première unité (21) d'entraînement et une seconde unité (22) d'entraînement, chacune des unités (21, 22) d'entraînement comprenant un élément constitutif (28) d'arbre d'entraînement rotatif et un organe (23) d'entraînement qui est conçu pour entraîner en rotation l'élément constitutif (28) d'arbre d'entraînement sous l'influence d'une force exercée sur l'organe (23) d'entraînement depuis l'extérieur du dispositif. L'élément constitutif (28) d'arbre d'entraînement et l'élément (6) de sortie peuvent être accouplés l'un à l'autre de telle sorte qu'une rotation de l'élément constitutif (28) d'arbre d'entraînement généré par l'organe (23) d'entraînement peut être transmise à l'élément (6) de sortie.
PCT/NL2020/050453 2019-07-12 2020-07-09 Dispositif comprenant un élément de sortie rotatif et un mécanisme d'entraînement pour entraîner l'élément de sortie WO2021010825A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2023489A NL2023489B1 (nl) 2019-07-12 2019-07-12 Inrichting met een roteerbaar eindelement en een aandrijfmechanisme voor het aandrijven van het eindelement
NL2023489 2019-07-12

Publications (1)

Publication Number Publication Date
WO2021010825A1 true WO2021010825A1 (fr) 2021-01-21

Family

ID=68343399

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2020/050453 WO2021010825A1 (fr) 2019-07-12 2020-07-09 Dispositif comprenant un élément de sortie rotatif et un mécanisme d'entraînement pour entraîner l'élément de sortie

Country Status (2)

Country Link
NL (1) NL2023489B1 (fr)
WO (1) WO2021010825A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1211911A (en) * 1915-08-28 1917-01-09 Arthur Boyd Propelling mechanism for vehicles.
WO1997029009A1 (fr) * 1996-02-08 1997-08-14 BRIERE, Véronique Pedalier de surpuissance pour velo
WO2009101637A2 (fr) 2008-02-15 2009-08-20 Manoj Kumar Mondal Système d’entraînement basé sur un bras de manivelle de longueur variable

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU91859B1 (de) * 2011-08-29 2013-03-01 Saffet Pavlovic Antriebsanlage für die verstellbare Tretkurbel am Fahrrad, Sport-, Übungs- oder therapeutischen Gerät

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1211911A (en) * 1915-08-28 1917-01-09 Arthur Boyd Propelling mechanism for vehicles.
WO1997029009A1 (fr) * 1996-02-08 1997-08-14 BRIERE, Véronique Pedalier de surpuissance pour velo
WO2009101637A2 (fr) 2008-02-15 2009-08-20 Manoj Kumar Mondal Système d’entraînement basé sur un bras de manivelle de longueur variable

Also Published As

Publication number Publication date
NL2023489B1 (nl) 2021-02-03

Similar Documents

Publication Publication Date Title
EP2848288B1 (fr) Dispositif d'exercice
JP6675110B2 (ja) 駆動ユニットおよび電動アシスト自転車
US20120104723A1 (en) Combined-drive bicycle
EP1620307B1 (fr) Appareil de transmission de puissance pour bicyclette
US20190368579A1 (en) Transmission device for gear switching, and human-powered vehicle comprising said device
RU2421366C1 (ru) Педальный привод (варианты)
EP3665402B1 (fr) Variateur de vitesse, dispositif d'entraînement pour véhicule à pédale assisté à propulsion humaine, et véhicule comprenant ledit dispositif
WO2021010825A1 (fr) Dispositif comprenant un élément de sortie rotatif et un mécanisme d'entraînement pour entraîner l'élément de sortie
WO2017012358A1 (fr) Mécanisme de transmission directionnelle, moyen formant roue dentée directionnelle et dispositif de pédale
EP2934996B1 (fr) Pédalier et procédé de transfert de puissance dans un pédalier
EP2881315B1 (fr) Dispositif de transmission pour véhicules
WO2005009832A1 (fr) Systeme de pedale a manivelle et vehicule equipe de ce systeme
KR101254596B1 (ko) 허브타입의 무단변속장치
EP0540480A1 (fr) Dispositif de changement de vitesse automatique pour bicyclettes
EP3341280B1 (fr) Dispositif pour la transmission de mouvement sur des cycles
US7291081B2 (en) Variable-ratio transmission device
KR101449346B1 (ko) 회전력전달장치 및 이를 이용한 탈것
EP3144209B1 (fr) Dispositif de transmission de puissance
GB2303595A (en) Push-pull drive mechanism for bicycles, etc.
TWI726641B (zh) 自行車儲能助力系統
KR101327332B1 (ko) 허브타입의 무단변속장치
KR200255796Y1 (ko) 자전거의 동력구동장치
WO2006060874A1 (fr) Ensemble d’entrainement pour mecanisme de manivelle
JP3096841U (ja) 自転車の動力導入機構
JP3096841U6 (ja) 自転車の動力導入機構

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20786622

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20786622

Country of ref document: EP

Kind code of ref document: A1