EP3887240A1 - Drive device for a bicycle, and bicycle - Google Patents
Drive device for a bicycle, and bicycleInfo
- Publication number
- EP3887240A1 EP3887240A1 EP19813265.6A EP19813265A EP3887240A1 EP 3887240 A1 EP3887240 A1 EP 3887240A1 EP 19813265 A EP19813265 A EP 19813265A EP 3887240 A1 EP3887240 A1 EP 3887240A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- energy storage
- bicycle
- storage device
- motor
- drive device
- Prior art date
- Legal status (The legal status 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 status listed.)
- Withdrawn
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
- B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
- B62M6/80—Accessories, e.g. power sources; Arrangements thereof
- B62M6/90—Batteries
-
- 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
- B62K19/00—Cycle frames
- B62K19/30—Frame parts shaped to receive other cycle parts or accessories
- B62K19/34—Bottom brackets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
- B62M6/40—Rider propelled cycles with auxiliary electric motor
- B62M6/55—Rider propelled cycles with auxiliary electric motor power-driven at crank shafts parts
Definitions
- the invention relates to a drive device for a driving wheel and a bicycle with such a.
- Enthusiasm for electric bicycles has been growing for some years now, despite the high weights and prices for bicycles.
- Potential customers are not only older, less fit cyclists or cyclists who are free of sporting ambitions, but also sporty, younger cyclists, whether for use on the way to work or because of the possibility of expanding the range of action with them without overexerting their own physique and / or increase the cruising speed.
- Mountain bikers in particular seem to be increasingly interested in electrically supported mountain bikes.
- An object on which the invention is based is to create a drive concept for electric bicycles which enables particularly simple and flexible assembly.
- a drive device for a bicycle in particular for an electric bicycle, is disclosed.
- the drive device has an energy storage device on.
- the energy storage device is, for example, a battery device or a battery device.
- the drive device further has a motor device, separate from the energy storage device, with an electric motor for driving a pedal crank axis of the bicycle.
- the motor device and the energy storage device are designed to be connected to one another by means of an electromechanical coupling such that the electric motor can be supplied with energy from the energy storage device and that the motor device and the energy storage device are at different angles, in particular between their longitudinal axes, to one another can be coupled.
- the drive device described which is provided in particular for mounting on a down tube or on a seat tube, enables a mounting on different frame structures or frame geometries due to the angular arrangement of the energy storage device and the motor device.
- the drive device described is particularly suitable.
- the motor device and the energy storage device can be coupled electromechanically to one another at a defined angle and thus essentially follow the frame geometry of the bicycle.
- the drive device has the advantage that it can be used with a large number of different frame structures or frame geometries.
- the drive device can be easily adapted to a desired frame structure afterwards.
- the Frame structure which is particularly important for bicycle manufacturers and is often used as a unique selling point, can thus be retained or individually designed and is not to be adapted to a mandatory geometry of the drive device.
- a straight down tube and only a straight drive device are not mandatory.
- the drive device thus enables a particularly flexible assembly on different frame structures.
- the shapes of the energy storage device and the Motorvor direction are in respective coupling sections or
- the electromechanical coupling means a wireless electrical and mechanical connection, for example a snap connection.
- the drive device enables simple and flexible mounting on the frame structure such that the drive device on the one hand as a whole, that is to say in the coupled state of the motor device and the energy storage device, and on the other hand also in the uncoupled state of its individual components on the bicycle frame can be installed is.
- the electromechanical coupling only takes place on the frame itself.
- the frame can be made particularly stable in the latter case, wherein the motor device and / or the energy storage device in each case at least partially inserted or inserted into the frame.
- the electromechanical coupling means that the motor device and the energy storage device are essentially mechanically and electrically coupled to one another.
- the motor device comprises, in particular, an electric motor which is designed to drive a pedal crank or a pedal crank axis of the bicycle.
- the motor device in the electromechanically connected state is electrically connected directly to the energy storage device by means of an electrical plug connection.
- an electrical plug connection In other words, it is a direct plug-in connection in which no cables or cable connections are necessary.
- the motor device has a first electrical connector and the energy storage device has a corresponding second electrical connector to form the electrical coupling, the two connectors each having a plurality of knife-like contacts.
- Such a configuration allows not only the transmission of high currents, but also a secure mechanical connection, so that the contact does not come loose when the bicycle is used for normal operation.
- the knife contacts can, for example, have a rounded contour, so that the motor device and the energy storage device can be arranged at different angles, in particular steplessly, to one another.
- the motor device and / or the energy storage device has a locking device, so that the motor device and the energy storage device can be locked to one another in the electromechanically connected state.
- the locking device ensures that the motor device and the energy storage device are fixed in a coupled state relative to one another.
- the motor device and the energy storage device latch together in the electromechanically connected state and are thus releasably locked to one another.
- the motor device and the energy storage device snap together at several angles.
- the locking device described above can optionally be additionally provided, so that the two elements can no longer be detached from one another.
- the motor device and the energy storage device form a common coupling axis in the electromechanically coupled state, about which the motor device and the energy storage device can be aligned relative to one another for setting the different angles.
- the two elements can be connected to one another and then pivoted about the coupling axis to one another, so that the desired alignment is set at an angle to one another. It is conceivable, for example, that the two elements lock into one another in certain angular steps when pivoting.
- the motor device and the energy storage device can be coupled to one another in an angular range from 0 ° to 90 °, in particular between their longitudinal axes.
- the angular arrangement is limited to a certain angular range.
- the connection areas of the motor device and the energy storage device are each matched to one another in such a way that, in the coupled state, an angular arrangement beyond the specific angle range is not possible.
- the motor device has a transmission device that is designed to drive a pedal crank of the bicycle. Exemplary embodiments for this are given in the above-mentioned European patent EP 2 731 858 B1.
- the motor device can therefore also be designed as a motor gear unit.
- a bicycle in particular an electric bicycle.
- the bicycle has a driving wheel frame with a frame section.
- the frame section extends to a bottom bracket and has a curved or angular course.
- the bicycle has a drive device according to one of the embodiments described above, which is arranged on the frame section in the region of the curved or angled course, in particular on an underside of the frame section.
- the motor device and the energy storage device are arranged at an angle to each other, ie at a predetermined angle to each other, for example between their longitudinal axes.
- the bike essentially enables the aforementioned advantages and functions.
- the frame section is generally hollow, for example as a tubular body, the tubular body being partially broken open in the region of the recess, so that the drive device can be accommodated.
- the recess can also be designed such that the frame section remains as a carrier, the carrier being designed as a flat profile. It should be noted that the recess can also be formed on the top of the frame section.
- the curved, arc-shaped or angled course of the frame section means, for example, the following:
- the frame section has a first section which merges into a second section, the longitudinal axes of the two sections being aligned with one another at a predetermined angle.
- the transition from the first to the second section can be curved, arched, angular, angled or the like.
- the first section is for example farther away from the bottom bracket than the second section.
- the energy storage device is, for example, essentially arranged on the first subsection and / or extends essentially along it.
- the motor device is, for example, essentially arranged on the second section and / or extends essentially along it.
- the drive device is arranged as an assembly in the already coupled state to the frame section, in particular mounted. This means that the angle between the motor device and the energy storage device is already set before assembly on the bike and the two components are locked to each other.
- the drive device can thus be assembled as a unit.
- the drive device is arranged on the bicycle in such a way that the energy storage device is at least partially pushed into a tubular section of the frame section before the electromechanical coupling and then the motor device is arranged on the frame section such that the electromechanical coupling is formed.
- the energy storage device is arranged on the first section, being partially inserted into the frame section.
- the motor device is arranged on the second section, which can also be at least partially inserted into the frame.
- the motor device can also be mounted on the frame and / or on the bottom bracket with the end or end region facing away from the coupling, for example hooked in or plugged in.
- This embodiment provides additional Protection and a stable bracket, since at least the energy storage device is partially protected and held by the surrounding frame.
- the motor device and / or the energy storage device are locked on the frame section. This enables simple assembly.
- the frame section has a closure device which mechanically secures the drive device to the frame section after the drive device has been arranged on the frame section.
- the closure device mechanically secures the motor device and / or the energy storage device, for example, on the frame in each case.
- This frame-fixed locking device can be designed in various ways, for example as a sliding lock, as a latch lock or the like.
- the closure device acts, for example, a positive connection with the Motorvorrich device and / or the energy storage device, so that an unwanted release of these components and thus the drive device is prevented from the frame.
- Two closure devices can also be provided, one securing the motor device and the other securing the energy storage device.
- the closure device has an electrical switch for actuating the motor device.
- the switch is designed to turn the support by the electric motor on or off when pedaling.
- the closure device has at least one operating element which is set up to actuate a function of the drive device. For example, a maximum energy or force that is transmitted to the pedal crank axis could be set.
- the closure device has a display, for example a touch display.
- a display for example a touch display.
- data relating to the drive device can be displayed, for example whether the engine is ready for operation or functional, which forces are being transmitted or the same.
- touch display additional settings or functions relating to the drive device can be carried out by the user.
- FIG. 1 shows a schematic view of a bicycle with an installed drive device according to a first exemplary embodiment of the invention
- FIG. 2 shows a schematic, enlarged partial view of the bicycle with the drive device in the assembled state
- FIGS. 3 to 5 are schematic, perspective views during the assembly of the drive device
- FIGS. 6 and 7 are schematic, perspective views of coupling areas of a motor device and an energy storage device of the drive device
- FIG. 8 shows a schematic, perspective view during the assembly of the drive device according to a first exemplary embodiment of the invention
- FIG. 9 shows a schematic sectional view of the bicycle in the area of the drive device
- Figures 10 and 11 are schematic, perspective views of a locking device of the bicycle in the open and closed state.
- FIGS 12 and 13 schematic, perspective detail views of the locking device of the bicycle in the open and closed state.
- FIG. 1 shows schematically a bicycle 1, in particular an electric bicycle.
- the bicycle 1 has a bicycle frame 2, which includes a frame section 3, which in the exemplary embodiment is a down tube, and which extends from the head tube (only indicated and without reference numbers).
- the down tube 3 extends in the direction of a bottom bracket 4 and has a curved course.
- the down tube 3 has a first section 5, the ge swings into a second section 6 merges.
- Longitudinal axes 7 and 8 (such as main directions of extension or central longitudinal axes) of the sections 5, 6 run at a certain angle 9 to each other.
- An angled down tube 3, such as an angled transition into the second section 6, is also conceivable.
- FIG. 2 shows a detailed view of the bicycle 1.
- the down tube 3 has a recess 11, in which a drive device 12 according to an embodiment of the invention is defined.
- the drive device 12 has two separate components, an energy storage device 13 and a motor device 17, which are coupled to one another electromechanically and together in the assembled state (as shown in FIG. 2) form a structural unit.
- the energy storage device 13 is essentially (ie at least predominantly) arranged on the first section 5.
- the energy storage device 13 is a battery storage device, in particular a battery device.
- the energy storage device 13 has its own housing 14 and has a coupling section 16 at one end 15 (see FIG. 3).
- the motor device 17 has a corresponding coupling section 19 on an end 18 facing the energy storage device 13 (see FIG. 5).
- the Motorvorrich device 17 has its own housing 20.
- the motor device 17 has, for example, an electric motor, it can optionally have other components such as gearbox, control unit, etc.
- the motor device 17 is arranged on the down tube 3 in such a way that it can transmit a force to a pedal crank axis for driving it (not shown).
- the motor device 17 and the energy storage device 13 can be covered in each case or together by an aperture.
- a possible embodiment of the bottom bracket 4 and the motor device 17 for mechanical coupling with the pedal salmon can be found, for example, in EP 2 731 858 B1 mentioned at the beginning.
- the Motorvor direction 17 and the energy storage device 13 are electromechanically connected. In other words, these are connected by means of an electromechanical coupling 21.
- the coupling 21 is such that a direct electrical plug contact is formed, as is clear from the other figures to be written.
- the two components 13 and 17 are not electrically connected by means of cables.
- the electromechanical coupling supplies the motor device 17 with current, in particular the electric motor being driven to drive the pedal crank axis.
- An essential feature of the drive device 12 is that it can be adapted to the frame geometry of the down tube 3. This is achieved in that the motor device 17 and the energy storage device 13 are coupled to one another at a predetermined angle 22.
- the angle 22 is based on example on the longitudinal axes 23 and 24 of the two components 13 and 17. These are, for example, main longitudinal axes, i.e. axes along which the respective component mainly extends.
- the two components 13 and 17 are designed such that the coupling 21 is not limited to an angle 22, but rather in such a way that different angles are possible. In other words, the two components 13 and 17 can have different orientations with respect to one another. This achieves the advantages and functions mentioned at the beginning.
- the drive device 12 can be easily and quickly adapted to various frame sections that run at an angle or in an arc or the like.
- Figures 3 to 5 show the drive device 12 during assembly according to a first variant. In this variant, the drive device 12 is mounted in such a way that the energy storage device 13 is first arranged on the down tube 3. This is at least partially inserted into the first section 5, which is hollow and is adapted to the shape of the energy storage device 13.
- the motor device 17 is arranged in the region of the end 25 opposite the end 18 on the down tube 3, ie the second section 6.
- the motor device 17 is then pivoted against the down tube 3 and coupled to the energy storage device 13 as shown in FIG. 2.
- the drive device 12 is arranged on the lower tube 3.
- FIGS. 6 and 7 show a possible embodiment of the energy storage device 13, in particular in the area of the end 15 and the coupling section 16, and of the motor device 17, in particular in the area of the end 18 and the coupling section 19.
- the two coupling sections 16 and 19 are matched to one another and adapted so that when the electromechanical coupling 21 is formed, a common axis of rotation 26 (also coupling axis) is formed (indicated schematically), with respect to which the energy storage device 13 and the motor device 17 are aligned with one another can be.
- the two components 13 and 17 can be coupled to one another and then pivoted or locked in relation to the axis of rotation 26 to one another until the desired angle 22 is set.
- the motor device 17, in particular the coupling section 19, has a first electrical connector 27, which can be coupled to a second electrical connector 28 of the energy storage device 13 or its coupling section 16. Both connectors 27 and 28 are designed to correspond to each other and have corresponding measuring contacts 29. This configuration allows mechanically safe contacting and also the reliable transmission of high currents, such as can flow during operation of the bicycle 1 and the drive device 12.
- the energy storage device 13 and the motor device 17 are optionally latched to one another and thus releasably connected.
- a locking device such as a quick release (similar to bicycle tires) or the like, is provided, by means of which the two components 13, 17 can be securely attached to one another.
- the locking and / or locking can take place in steps.
- the latching or locking positions are predetermined, so that discrete angular arrangements between the two components 13, 17 are possible.
- the alignment of the two components 13, 17 can be limited to an angular range from 0 ° to 90 °.
- Figure 8 shows another variant in which the drive device 12 is assembled before assembly on the bicycle 1, ie energy storage device 13 and motor device 17 are coupled to one another in the desired angular arrangement.
- the coupling 21 is such that the two components 13, 17 are fixed in their orientation, for example latched to one another and / or locked by means of an additional locking device as described above.
- the drive device 12 is then a unit to the down tube 3rd assembled.
- the recess 11 on the down tube 3 is therefore larger than in the first variant or extends over a larger area along the down tube 3.
- a pushing at least one component 13, 17 into the down tube 3 is not provided or essentially not possible. All features and details already described apply analogously.
- the frame structure of the bicycle can be identical except for the recess 11.
- Figure 9 shows a schematic sectional view of the drive device 12 in the assembled state. It can be seen that the motor device 17 can have, in addition to an electric motor 30, further components, such as a transmission, etc.
- FIGs 10 to 13 show in perspective a further detail of the bicycle 1.
- a locking device 31 is provided (can also be seen in Figures 1 to 5, 8 and 9).
- the closure device 31 has an actuating element 32, which is arranged as a slide switch on the upper side 33 of the down tube 3 and is displaceably guided thereon.
- the actuating element 32 can be pushed to a limited extent between an open position (FIG. 11) and a closed position (FIG. 10).
- Figures 12 and 13 show the closure device 31 without down tube 3 for reasons of clarity.
- the actuating element can also have other configurations. For example, it is designed as a pressure switch or pull handle.
- the closure device 31 mechanically secures the drive device 12 on the down tube 3 this does not come off unintentionally.
- the actuating element 32 has a locking projection 34 which, in the closed position, engages in a corresponding locking groove 35 or recess 36 in the motor device 17. In the open position (see FIG. 13), the locking projection 34 is not in engagement with the locking groove 35, so that the drive device 12 can be removed from the down tube 3.
- the closure device 31 can have further features, which are not shown in the figures, however, and are easy to implement by a person skilled in the art.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018130377.7A DE102018130377B4 (en) | 2018-11-29 | 2018-11-29 | Driving device for a bicycle and bicycle |
PCT/EP2019/082609 WO2020109318A1 (en) | 2018-11-29 | 2019-11-26 | Drive device for a bicycle, and bicycle |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3887240A1 true EP3887240A1 (en) | 2021-10-06 |
Family
ID=68762709
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19813265.6A Withdrawn EP3887240A1 (en) | 2018-11-29 | 2019-11-26 | Drive device for a bicycle, and bicycle |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3887240A1 (en) |
DE (1) | DE102018130377B4 (en) |
WO (1) | WO2020109318A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102020002899A1 (en) | 2020-05-14 | 2021-11-18 | Schaurer & Pfanzelt GbR (vertretungsberechtigte Gesellschafter: B.Sc. Andreas Pfanzelt, 89294 Oberroth und Dipl.-Ing. (FH) Michael Schaurer, 85435 Erding) | Electric semi-trailer |
DE202020104966U1 (en) * | 2020-08-27 | 2021-11-30 | Canyon Bicycles Gmbh | Battery unit and bike frame |
WO2024035702A1 (en) | 2022-08-08 | 2024-02-15 | Driven Technologies, Inc | Electrical pedal assist bicycle powertrain |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09226382A (en) * | 1996-02-29 | 1997-09-02 | Yamaha Motor Co Ltd | Battery arranging structure of electric bicycle |
JPH11105759A (en) * | 1997-10-02 | 1999-04-20 | Mitsubishi Heavy Ind Ltd | Motor assisted bicycle |
CN201179950Y (en) * | 2007-12-28 | 2009-01-14 | 福斯特资产有限公司 | Modular combined power unit |
US8469381B2 (en) | 2010-08-26 | 2013-06-25 | Cycling Sports Group, Inc. | Bicycle |
DE102011079094A1 (en) | 2011-01-13 | 2012-07-19 | Johannes Biechele | Frame e.g. hardtail mountain bike frame, for use in electric bicycle for athletes, has bottom bracket housing formed to accommodate bottom bracket motors or mechanical bottom brackets connected with adapter ring |
CN202358266U (en) * | 2011-11-24 | 2012-08-01 | 无锡市北斗星电动科技有限公司 | Electric vehicle frame |
TWM504773U (en) * | 2015-03-05 | 2015-07-11 | J D Components Co Ltd | Battery holder assembly of electrically assisted bike |
JP6848580B2 (en) | 2017-03-24 | 2021-03-24 | トヨタ自動車株式会社 | Fuel cell stack |
JP6867213B2 (en) | 2017-04-05 | 2021-04-28 | 株式会社シマノ | Bicycle battery holder |
JP6787866B2 (en) | 2017-10-13 | 2020-11-18 | 株式会社シマノ | Bicycle components |
-
2018
- 2018-11-29 DE DE102018130377.7A patent/DE102018130377B4/en not_active Expired - Fee Related
-
2019
- 2019-11-26 WO PCT/EP2019/082609 patent/WO2020109318A1/en unknown
- 2019-11-26 EP EP19813265.6A patent/EP3887240A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
WO2020109318A1 (en) | 2020-06-04 |
DE102018130377A1 (en) | 2020-06-04 |
DE102018130377B4 (en) | 2022-04-28 |
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