MOUNTING ADAPTER FOR AN ELECTRIC CYCLE
A mounting set for mounting an electric motor to a cycle includes an adapter for attaching the electric motor. The adapter is configured to be attached to at least one side of a bottom bracket tube and at least one point on a down tube. The adapter includes mounting holes configured to attach the adapter to at least one side of the bottom bracket tube using an attachment device and bolts.
This application is a U.S. National Phase application under 35 U.S.C.§371 of International Application No. PCT/EP2011/003649, filed on Jul.20, 2011, and claims benefit to Austrian Patent Application No. GM 538/2010, filed on Aug. 31, 2010. The International Application was published in German on Mar. 8, 2012 as WO 2012/028227 A1 under PCT Article 21 (2).
FIELDThe invention describes a mounting set with an adapter, as well as an adapter which makes mounting an electric motor to virtually any vehicle, especially bicycles, retroactively possible.
BACKGROUNDCurrently, there are a number of different models of electrically powered bicycles available on the market, which however only feature electric power units permanently attached at the factory. These power units support or provide 100% of forward propulsion. Furthermore, so-called retrofit kits for electric propulsion are available on the market for the conversion of a bicycle to a pedelec (“pedal electric cycle;” a hybrid electric bicycle where the electric motor merely supports the pedaling action of the rider.) These retrofit or conversion kits require a considerable installation effort. Uninstalling them is no less problematic.
The following documents are a few examples of electric, bicycle-mounted motorization units: U.S. Pat. No. 4,871,042, GB-A-2.249.529, U.S. Pat. No. 5,242,028, EP-A-0.755.854, EP-A-0728.663, as well as EP-A-0.776.818 and EP 1 462 355 A1.
SUMMARYIn an embodiment, the present invention provides a mounting set for mounting an electric motor to a cycle. The mounting set includes an adapter for attaching the electric motor. The adapter is configured to be attached to at least one side of a bottom bracket tube and at least one point on a down tube. The adapter includes mounting holes configured to attach the adapter to at least one side of the bottom bracket tube using an attachment device and bolts.
An aspect of the present invention is to provide for the possibility of attaching an electric motor to a bicycle, as well as the possibility to nearly completely reverse the installation without much effort, as desired by the user (e.g. for a bicycle sporting event.)
The present invention will be described in even greater detail below based on the exemplary figures. The invention is not limited to the exemplary embodiments. All features described and/or illustrated herein can be used alone or combined in different combinations in embodiments of the invention. The features and advantages of various embodiments of the present invention will become apparent by reading the following detailed description with reference to the attached drawings which illustrate the following:
The problem is solved by a mounting set for mounting an electric motor to a chain driven bicycle, tricycle, quadricycle, etc., (henceforth “bicycle”) featuring an adapter (1)—which can be mounted to at least one side of the bottom bracket and at least one point on a down tube—for the attachment of the electric motor. The adapter (1) shall feature attachment holes (62), which can be used to attach the adapter (1) to at least one side of the bottom bracket using bolts and an attachment device (6.)
The adapter preferably features three attachment holes which are spaced in accordance with the distances dictated by the International Standard Chainguard Mount (ISCG.) The attachment hole is preferably a drilled hole in a metal plate of the adapter. The attachment holes are preferably curved oblong holes.
The adapter preferably includes three metal plates which are joined in a U-shaped manner; ideally of a single metal plate which has been curved upward on its left and right sides.
The down bracket tube is the tube containing the bottom bracket. It may also be called drivetrain bearing housing.
The attachment point is preferably an already existing attachment point on the frame, such as for a chain guard. It is preferably an ISCG attachment point. It preferably features three threads for the attachment of bolts.
The adapter can preferably be attached with bolts on the left or right side (from the rider's view), ideally on both sides of the bottom bracket with one, respectively two attachment devices. This way, the adapter can be easily attached or removed in the vicinity of the bottom bracket using common tools such as screwdrivers, wrenches, or hex-wrenches.
Using bolts and one of the already existing ISCG attachment points is a more stable attachment solution than using clamps on the bottom bracket tube. By attaching the adapter in the vicinity of the bottom bracket tube, the heavy electric motor can be attached there as well, where—to ensure optimum ride characteristics—the center of gravity should be located.
The adapter transmits the exerted forces preferably mostly by way of the bottom bracket area. It features at least one hole with at least the inside diameter of the down bracket tube. The adapter is preferably compatible with inner bearing sleeves for commonly marketed bottom bracket housing widths, such as 68 mm, 73 mm, or 83 mm.
In another mounting set designed according to the invention, the mounting set features at least one additional attachment device (6), with the attachment device (6) being either clampable to one side of the bottom bracket tube, or the attachment device being an integral part of an inner bearing sleeve.
This way, bicycles that do not feature an attachment point, such an ISCG attachment point, can be retrofitted with an attachment point. Most bicycles do not have any attachment devices on the left side of the bottom bracket (from the rider's point of view), which means that this location on the bicycle can be utilized for attaching the adapter to the bicycle using bolts and an attachment device connected to the bottom bracket; however, not without additional measures.
An attachment device which can be clamped to one side of the bottom bracket is preferably a metal plate with a hole of the same diameter as the inside diameter of the bottom bracket tube, as well as one or more, preferably three holes, preferably with cut threads, arranged around the hole of the same diameter as the inside diameter of the bottom bracket tube, preferably in accordance with the hole pattern of an ISCG attachment device. This metal plate is preferably round on the outside, possibly with recesses where the holes with the threads are located. This attachment device is preferably clamped to the bottom bracket with the bottom bracket bearing sleeve, which, in an installed state has an outside flange.
If the attachment device is an integral part of an inner bearing sleeve, the inner bearing sleeve will feature an even wider flange, in which the threaded holes are located.
The adapter can thus be bolted preferably on the right side to an existing ISCG attachment point, or, if no ISCG attachment points are available, with an attachment device included in the mounting set. This means an attachment device clamped together with the inside bearing (ISCG simulated adapter) or by means of a special inner bearing sleeve with molded attachment points.
The special inner bearing sleeve with attachment points and a bottom bracket are preferably part of the mounting set. The inner bearing and preferably the inner bearing axle of the bottom bracket feature preferably a sufficient length matched with the mounting set, to ensure proper chain paths for the motor drive chain as well as the chain rings and cogs, as well as providing room for the motor between the crankarms.
In another mounting set designed according to the invention, the adapter (1) features at least one lateral mounting plate (60), which in the installed state of the adapter (1) reaches from the bottom bracket tube alongside the down tube (11), with one end featuring attachment holes (62) for attachment to the attachment device (6), and the other end featuring at least one possibility to attach the lateral mounting plate to the down tube.
The position of the mounting plate is preferably lateral, if in an installed state it is located perpendicular to the bottom bracket axle, and continues alongside the down tube, and runs parallel to the triangular plane created by the down and seat tubes. The mounting plate is preferably made of metal.
By means of the lateral mounting plate, the adapter can be mounted in at least two points on the bicycle. One point is the bottom bracket, the other being the down tube. The lateral position of the mounting plate preferably allows for the accommodation of different down tube designs, angles, and curvatures.
Attachment to the down tube is preferably achieved by means of a frame attachment device, preferably by means of a clamp which clamps the mounting plate to the down tube. This clamp is variable, in that it fits multiple down tube diameters and profiles.
One attachment possibility is for example an attachment hole or an attachment loop for a clamp. The adapter will preferably feature several attachment holes, so that attachment to the down tube at various points along the down tube can be achieved.
In another mounting set designed according to the invention, the adapter (1) features a second lateral mounting plate (60) located opposite the first lateral mounting plate (60), with the lateral mounting plates being arranged in such a manner that they will feature at least one opposing pair of holes consisting of one attachment hole on one lateral mounting plate (60) and one attachment hole on the other lateral mounting plate (60.)
The second lateral mounting plate in its installed state runs preferably on the side of the bottom bracket and down tube opposite from the first lateral mounting plate. Because of the attachment hole arrangement of the mounting plates, fastening devices for the down tube such as a frame clamps or bolts can be flexibly mounted to the adapter, allowing to compensate for different frame designs and down tube angles or curvatures. At least one mounting plate preferably features attachment holes in two parallel stacked rows.
In another mounting set designed in accordance with the invention, the adapter (1) can be attached to the down tube (11) by means of opposing bolts (17) running through the hole pair, and by means of at least one thread (18) located in the down tube (11), and preferably by means of spacers (19.)
The thread is preferably located inside a threaded sleeve which has been run through the down tube (along the diameter of the tube, parallel to the ground, with the bicycle in a perfectly upright position) and preferably has been welded into place. This way, a frame attachment component (such as a clamp) is unnecessary, and the adapter can be attached to the down tube simply by means of bolts and the attachment holes on the adapter, in which case the end of the main mounting plate located furthest away from the bottom bracket is preferably directly bolted to the down tube.
The adapter is preferably attachable to a shock absorber attachment point on the down tube, by means of two opposing bolts which are run through the pair of mounting holes. To accomplish this, the adapter features preferably at least one indentation on one of the mounting plates. This indentation in an installed state is preferably to be located in the triangular area made up of the down, seat, and top tubes, and preferably features at least one hole for attaching a bolt. The indentation is preferably bolted to the adapter subsequently as a piece of perforated sheet metal, while ideally the indentation is integrated into the design of at least one mounting plate. A shock absorber attachment point is for instance a flange on the top side of the down tube, which usually has one end of a shock absorber attached to it, as part of the rear wheel suspension.
As an alternative to attaching the adapter to at least one side of the bottom bracket, the adapter can preferably be attached with bolts to the right and left side of a shock absorber attachment point, while the mounting adapter can be mounted to the down tube near the bottom bracket using a clamp or a threaded sleeve integrated into the down tube at the attachment point. By using the already existing and easily reachable shock absorber attachment points, the adapter can be mounted to the frame just as securely.
In another mounting set designed according to the invention, the mounting set includes a battery holder (56) which can be attached to the adapter (1), while the battery holder (56) in its installed state together with the adapter will partially surround the down tube (1.)
The battery holder preferably consists of one or more clamps, which are on one side attached to the battery housing, while on the other side can be bolted to the adapter. The clamps are preferably U-shaped, and preferably feature slots along their lengths, so that the battery can be positioned vertically. By way of a slot along the length of the battery holder, the battery can be moved up and down along the down tube.
This way the battery can be mounted to the bicycle without much effort. The battery holder uses existing attachment points on the adapter. Thus no additional attachment points on the bicycle frame have to be considered for the battery holder. Furthermore, this battery attachment design is very solid, as it builds on the stability of the adapter.
In another mounting set designed according to the invention, a motor mount (3) can be attached variably to the adapter (1) preferably movable and/or rotatable along at least two axes. The motor mount is preferably designed for attaching a motor. It is preferably attachable to and detachable from the adapter by means of four bolts. This ensures that the motor can be easily removed, so that it is possible for the mounting set to be removed wholly or partially, whichever is preferred.
Making the motor mount moveable and/or rotatable allows for the proper adjustment of the motor mount on the adapter to ensure an optimal chain path, as well as to position the motor in different ways in accordance with frame restrictions. The motor mount is preferably adjustable on all axes when attached to the adapter.
In another mounting set design in accordance with the invention, the adapter (1) is fitted with the motor mount (3), which can be installed and uninstalled quickly on the adapter (1) by means of bolts.
In another mounting set design in accordance with the invention, the motor mount (3) features an attachment point for a motor chain tensioner (37.)
The motor chain tensioner is preferably a small cog attached to a spring-loaded arm which is attached at the attachment point for the motor chain tensioner on the adapter. The motor chain tensioner's purpose is to put tension on the motor chain.
In another mounting set design according to the invention, the motor mount (3) features a chain guard (9.)
The chain guard, preferably a sheet metal chain cover, keeps foreign objects away from the moving chain or the moving drive belt.
In another mounting set design according to the invention, the motor mount (3) features a motor controller (43.)
The motor controller is preferably installed to regulate the motor and provide electricity from the battery to the motor. Since the motor controller is attached to the motor mount, motor controller and motor are close together, meaning that the necessary wiring can be kept to a minimum.
In another mounting set design according to the invention, the adapter (1) features a connecting plate, on which a chain guide cog (22) can be mounted. The connecting plate (21) features at least one oblong hole (23), which is used to mount the chain guide cog (22) to the adapter using a bolt (24.) It is adjustable in at least one direction.
The chain guide cog is preferably mounted to the connecting plate using a rubber pulley, and is adjustable depending on the chain ring size.
This way an additional, preferably lower chain guide cog can be attached to the adapter, so that the chain can be adjusted for optimum tension and guidance. The likelihood of the chain leading to the cassette to derail is thus reduced.
In another mounting set design according to the invention, the mounting set features a chain ring adapter (25) which is attachable to an integrated free-wheel assembly (26) which separates the chain ring adapter (25) from the drivetrain (30) when being turned in one particular direction. At least one chain ring (27, 28) for a chain leading to the rear wheel of a bicycle, as well as a motorized chain ring (5) for a drive chain leading to a motor (2) can be attached to the chain ring adapter (25.)
The chain ring adapter is preferably a circular disk with a primary ring of at least three, preferably four or more holes, which are intended for mounting the free-wheel assembly; and a secondary ring of at least three, preferably four or more holes, which are intended for mounting cogs. The holes of the secondary ring are preferably located in recesses on the chain ring adapter. The drivetrain can preferably be bolted to a threaded hole in the free-wheel assembly. The free-wheel assembly preferably features a circular flange with three, preferably four or more holes for mounting the chain ring adapter. Chain rings with a diameter of 104 mm (e.g. 32 to 46 teeth) as well as chain rings with 20 to 24 (e.g. 22) teeth and a smaller diameter (58 mm, 64 mm) are preferably mountable to the chain ring adapter. The free-wheel assembly, drivetrain, and/or at least one chain ring are preferably part of the mounting set.
The chain ring adapter allows for different chain rings to be mounted, which the free-wheel assembly separates from the drivetrain. This way different types of chain rings can be mounted or e.g. the existing chain rings of the bicycle can be used. The free-wheel assembly supports a mode of operation which allows the rider to run the bicycle on electric power only, without pedaling. The chain ring adapter furthermore allows for low production costs. Because of the great forces exerted on the free-wheel assembly, it is preferably made of stainless steel. The adapter allows for the adapter itself as well as the chain rings to be made of cheaper and lighter materials, such as aluminum. Manufacturing a free-wheel assembly with an integrated chain ring adapter results in larger amounts of more expensive material having to be used, which is multiplied especially because of waste material. Thus, this solution provides a greater amount of flexibility, lower weight, and lower production costs.
Alternatively, despite its disadvantages, a chain ring adapter with integrated free-wheel assembly is part of the mounting set, if this option is chosen for example for reasons of simpler procurement for the production.
In another mounting set design according to the invention, the mounting set additionally features a chain guide plate (59), which in its installed state is located between at least one chain ring (27, 28) and the motor chain ring (5), its purpose being to safely keep the the chain to the rear wheel and the chain to the motor (2) at a distance from each other.
The chain guide plate preferably features a larger diameter than the present chain rings. This plate prevents the chain to the rear wheel from jumping to the motor chain ring, and the chain to the motor from jumping to a chain ring intended for the chain to the rear wheel. It prevents derailment of the two chains or drive belts.
In another mounting set design according to the invention, the mounting set features a motor (2) with a drive cog (36) which is separated from the motor (2) when being turned in one particular direction by means of a free-wheel assembly.
The separation by means of the free-wheel assembly, which is preferably mounted to the motor axis, allows for a mode of operation in which the bicycle can be used as a regular bicycle without any motorization. The second mode of operation allows for the bicycle to be pedaled without any motor support whatsoever (like any regular bicycle.) This arrangement makes a third mode of operation possible, which allows for the bicycle to be pedaled with motor support. The amount of motor support is individually adjustable by means of a lever. A lever, which preferably is part of the mounting set, features a display showing the amount of power currently used (for example in three levels.)
The motor drive shaft preferably features an adapter with a safety bolt and outside thread to accommodate the drive cog and free-wheel assembly.
In another mounting set design according to the invention, the mounting set features a controller holder (44), which is attachable to the handlebar stem (46) by means of bolts (45) and the threads present in the handlebar stem (46) for the attachment of a handlebar (47) by means of a clamp (48.)
The holder utilizes the existing threads of the handlebar stem, resulting in the controller being able to be attached more solidly to the handlebar stem. Thus, no plastic clamps or strap systems are necessary, which typically are less solid and twist. The controller can thus be attached to the handlebar stem, by means of a special holder, which is attached by means of e.g two or e.g. four handlebar stem bolts.
In another mounting set design according to the invention, the mounting set features a battery (54) which can be connected by means of a plug (52) and a wire (53), whereas the wire's (53) length and/or the battery's (54) size and shape are designed in such a manner, that the battery (54) can be carried in a backpack (55) during a bicycle ride.
The plug connecting battery and motor is preferably polarized, waterproof, and preferably severs the connection in all directions immediately, for example by means of a predetermined breaking point. The wire and plug are preferably rated for currents of up to 50 A or more.
The battery is preferably equipped with a battery management system which governs charging and discharging of the battery and adjusts the processes according to demand. The cells of the battery are preferably balanced. The battery management system will preferably shut off the battery before it is completely discharged. Likewise, it will preferably shut off the charging process as soon as the battery is fully charged. The battery, motor, and controller are preferably adaptively interlinked to provide maximum service without relinquishing control of the individual components. The controller is preferably programmable.
Transporting the battery in a backpack results in freer or more agile ride characteristics of the bicycle, since the weight is carried by the rider. The rider can keep the center of gravity within the bicycle frame triangle near the bottom bracket just as with any non-motorized bicycle. Furthermore, it ensures a higher rate of protection from theft of the battery, since the rider, when parking, can quickly disconnect the battery from the bicycle by means of the plug, and carry it with him/her.
The problem is also solved by a bicycle, to which a mounting set in accordance with one of the preceding claims has been mounted. The mounting set is preferably retrofitted to the bicycle. Ideally, it is mounted to the bicycle at the factory or dealership.
Mounting holes 62 are oblong holes on at least one side of the adapter. This way adapter 1 can be attached to the bottom bracket tube of a bicycle, and fixed in place using bolts, only slightly snug at first. The adapter is then adjusted to fit the down tube angle, and the bolts are tightened. As long as the bolts have not been tightened too much, adapter 1 can be turned around the inner bearings.
This way, adapter 1 can be installed and uninstalled effortlessly and without the use of many tools.
In order to attach adapter 1, the attachment device 6 is mounted on both sides of the bottom bracket. If an ISCG attachment point is available on the right side of the frame, adapter 1 shall be attached to said attachment point as well as attachment device 6 on the left side of the bottom bracket.
A third (and flexible) attachment point option is attaching adapter 1 by means of a clamp (7, 8) to the down tube of the frame.
Chain guard 9, which is attached to the motor mount, serves to protect the drive cog and motor chain from foreign objects and outside influences. Adapter 1 features oblong holes 62 in the vicinity of the bottom bracket, as well as mounting holes 16 on the end of the adapter opposite the bottom bracket attachment point. Adapter 1 features two opposing mounting plates 60, which are joined by a connecting plate.
The thread was integrated into the down tube at the time of manufacture of the frame. This ensures an even simpler mounting process with less parts, but resulting in possibly greater stability of the adapter on the bicycle. The construction allows for greater forces to be transferred to the frame.
Connecting plate 21 provides for a simple but effective and adjustable carrier for a chain guide cog 22. Chain guide cog 22 provides for optimal guidance of the present chains. This guidance prevents the chains from easily coming in contact or interfering with each other.
This provides for a compact drive unit consisting of motor, motor mount, controller (on the motor mount) and drive cog, which can be mounted to adapter 1. Chain guard 9 reduces the possibility of dirt and mechanical outside influence in the vicinity of the drive cog. The motor chain tensioner provides for optimal tension of the motor drive chain or belt.
This allows for existing threads in the handlebar stem to be utilized to ensure a solid and safe connection of motor controller 43 in the vicinity of handlebar 47.
This allows for the battery to be flexibly positioned as desired (e.g. in a basket, on a luggage rack, or in backpack 55.)
This allows for transporting battery 54 in a backpack 55. This is advantageous for very athletic bicyclists who do not want to alter the ride characteristics of their bicycle and thus may preferably carry the weight of battery 54 on their back.
This allows for providing a battery holder within the bicycle frame triangle using few additional parts. Attaching the adapter to down tube 11 is thus combined with an attachment device for a battery holder on down tube 11. Attaching battery holder 56 to adapter 1 provides for a very solid connection for the battery to the bicycle, as it now cannot fall sideways out of the frame triangle.
This allows for a bicycle, which does not have an attachment device for adapter 1 to be bolted to the frame, to be retrofitted with such an attachment device.
This also allows for a bicycle, which does not have an attachment device for adapter 1, to be retrofitted by means of attachment device 6, which is part of bottom bracket sleeve 20.
The current state of technology dictated so far that different inner bearings had to be utilized for bottom bracket housing widths of 68 mm, 73 mm, and 83 mm. Because of the differing lengths L1 and L2 of the inner bearing sleeves or inner bearing assembly sleeves, respectively, it is possible to utilize a single inner bearing body for all three housing widths. The right side inner bearing sleeve preferably stays the same, while the left side will feature three bottom bracket sleeves for adjusting to the different housing widths of 68 mm, 73 mm, and 83 mm.
Shock absorber attachment point 72 is designed to withstand great forces, and thus is able to transfer the forces exerted by the motor to the frame without compromising the long-term durability of the frame. This is a very solid mounting point. Four vertical oblong holes make mounting of a piece of perforated sheet metal 69 to adapter 1 possible. Horizontal oblong hole 74 allows for a solid connection to shock absorber attachment point 72. Spacers 70 are utilized to bridge shock absorber attachment point width differences on the frame.
This allows for a possibly already existing, very solid attachment point on the bicycle to be utilized.
Ideally, adapter 1 should be attached to shock absorber attachment point 72, since this attachment point is very solid. Attaching adapter 1 to a shock absorber attachment point prevents adapter 1 from moving laterally, which in turn means that attaching adapter 1 by means of one or more clamps 56 will be sufficient, resulting in a very high level of flexibility concerning installation and uninstallation.
Motor mount 2 together with motor 3 are alternatively bolted directly to the frame, for which the frame features at least two, preferably three or more attachment points.
Alternatively, motor mount 2 is directly integrated on or welded to the frame, preferably on down tube 11, and motor 3 can be attached to the bicycle by bolting it to motor mount 2.
The technical innovation of this invention is the simple, flexible, and retroactive attachment of electric motors to virtually any bicycle frame. It allows for the utilization of already existing attachment points for easily mounting an electric motor, which can be accomplished by technically versed laymen, allowing for positive-mode propulsion.
The flexible motor mount allows for the possibility to adjust chain tension and run.
The propulsion generated by the motor is transferred directly to the chain ring, which is disconnected from the manually powered part of the drivetrain by means of a free-wheel assembly.
ISCG stands for International Standard Chainguard Mount, an international norm defining attachment points for a special chain guard within the bicycle industry.
This invention for the first time provides the possibility to convert a bicycle into an electric bicycle using simple tools to bolt an adapter with an attachable motor mount and motor to the bicycle. The bicycle can still be reverted back to a regular bicycle without much effort and special tools. On one hand, existing attachment points such as an ISCG chain guard attachment point are utilized. On the other hand, attachment points can be retrofitted by means of special attachment devices which are included in the mounting set. These are either clamped to the bottom bracket tube by means of the bottom bracket sleeve, or they already serve the function of a bottom bracket sleeve. This step is only necessary one time, if no ISCG attachment point is present on the bicycle. However, the adapter can then be flexibly installed or uninstalled, with just the use of a screwdriver.
The invention concerns an adapter (1) which can be attached to virtually any vehicle frame, but predominantly bicycle frames, by means of three flexible attachment points (6, 7, 8), and which can accommodate a propulsion device (motor), whereas one attachment device (6) is attached to the right side of the bottom bracket (13) either by clamping it between the bottom bracket sleeve and the bottom bracket tube, or by bolting it to the ISCG attachment point (
The invention further concerns a style of adapter (1) intended to be mounted to bicycles, tricycles, quadricycles, etc., which can accommodate a propulsion unit (motor, or motor mount with motor.) This style of adapter is identified by the fact that mounting it on a frame is possible in three or more attachment points by means of a number of different holes in the adapter.
The invention further concerns a style of adapter, identified by the fact that it can be attached to the right side of the bottom bracket (13) either by clamping it by means of the bottom bracket sleeve to the bottom bracket tube, or by bolting it directly to an ISCG or similar attachment point.
The invention further concerns a style of adapter, identified by the fact that the attachment device (6) is attached to the left side of the bottom bracket (13) by means of the bottom bracket sleeve clamping it to the bottom bracket tube.
The invention further concerns a style of adapter, identified by the fact that it is attached to the down tube of the frame by means of a clamp, as a third flexible attachment point.
The invention further concerns a style of adapter, identified by the fact that the motor mount (3) can be flexibly attached to the main adapter.
LIST OF REFERENCE SIGNS1 Adapter
2 Motor
3 Motor Mount
4 Propulsion Force Conversion Unit Motor Chain
5 Motor Chain Ring
6 Attachment Device
7 Clamp (for attachment to Down Tube)
8 Clamp (for attachment to Down Tube)
9 Chain Guard
10 Seat Tube
11 Down Tube
12 Top Tube
13 Bottom Bracket
14 Head Tube
15 Bolt
16 Holes
17 Bolt
18 Thread
19 Spacers
20 Bottom Bracket Sleeve with Integrated Attachment Device 6
21 Connecting Plate for a Chain Guide Cog
22 Chain Guide Cog
23 Oblong Hole
24 Bolt
25 Chain Ring Adapter
26 Free-Wheel Assembly
27 Chain Ring
28 Chain Ring
29 Free-Wheel Assembly with Integrated Chain Ring Adapter
30 Drivetrain
31 Bolt
32 Bolt
33 Threaded Sleeve
34 Spacer
35 Bolt
36 Drive Cog
37 Chain Tensioner
38 Drive Cog Adapter Sleeve
39 Pins
40 Bolts
41 Free-Wheel Assembly Fixing Mechanism
42 Spacer
43 Motor Controller
44 Controller Holder
45 Bolts
46 Handlebar Stem
47 Handlebar
48 Clamp
49 Protective Plate
50 Bottom Bracket Tube
51 Bolt
52 Plug
53 Wire
54 Battery
55 Backpack
56 Battery Holder
57 Threaded Sleeves
58 Bolts
59 Chain Guide Plate
60 Mounting Plate
61 Bottom Bracket Sleeve
62 Attachment Hole
63 Bolt
64 Sleeve
65 Spacers
66 Bottom Bracket Sleeve for 73 mm Bottom Bracket Housing Width
67 Bottom Bracket Sleeve for 68 mm Bottom Bracket Housing Width
68 Mounting Plate
69 Piece of Perforated Sheet Metal
70 Spacer
71 Shock Absorber Bolt
72 Shock Absorber Attachment Point
73 Shock Absorber
74 Oblong Hole for Shock Absorber Attachment Point
75 Oblong Hole for Adapter
Claims
1-18. (canceled)
19. A mounting set for mounting an electric motor to a cycle, the mounting set including an adapter for attaching the electric motor, the adapter being configured to be attached to at least one side of a bottom bracket tube and at least one point on a down tube, the adapter including mounting holes configured to attach the adapter to at least one side of the bottom bracket tube using an attachment device and bolts.
20. The mounting set according to claim 19, further comprising at least one attachment device, the attachment device configured to be clamped to one side of the bottom bracket tube, or the attachment device being an integrated part of an inner bearing sleeve.
21. The mounting set according to claim 19 wherein the adapter includes at least one lateral mounting plate, which in the installed state is configured to reach from the bottom bracket tube alongside the down tube, and which includes attachment holes on one end for attaching the adapter to the attachment device, and which features at least one attachment element on an opposing end for attachment to the down tube.
22. The mounting set according to claim 21, wherein the adapter includes a second lateral mounting plate, which is located opposite of the first lateral mounting plate, and wherein the mounting plates create a bolt hole pattern which has at least one opposing pair of holes including an attachment hole of one mounting plate and an attachment hole of the other mounting plate.
23. The mounting set according to claim 22, wherein the adapter is configured to be attached to down tube using opposing bolts that run through the bolt hole pair, and using at least one thread located in the down tube.
24. The mounting set according to claim 19, further comprising a battery holder configured to be attached to the adapter, wherein the battery holder in its installed state partially surrounds the down tube together with the adapter.
25. The mounting set according to claim 19, wherein the adapter is configured to be fitted with a motor mount in a flexible manner.
26. The mounting set according to claim 19, wherein the adapter includes a motor mount which is configured to be quickly installed on or uninstalled from the adapter using bolts.
27. The mounting set according to claim 26, wherein the motor mount includes an attachment point for a motor chain tensioner.
28. The mounting set according to claim 26, wherein the motor mount includes a chain guard.
29. The mounting set according to claim 26, wherein the motor mount includes a motor controller.
30. The mounting set according to claim 19, wherein the adapter includes a connecting plate configured to receive a chain guide cog, wherein the connecting plate includes at least one oblong hole operable to attach the chain guide cog to the adapter using a bolt.
31. The mounting set according to claim 19, further comprising a chain ring adapter configured to be attached to an integrated free-wheel assembly, which in turn disconnects the chain ring adapter from a crankarm in one particular direction, while at least one chain ring for a chain to a rear wheel of the cycle and one motor chain ring for a chain to the motor is attachable to the chain ring adapter.
32. The mounting set according to claim 31, further comprising a chain guide plate, which in an installed state is configured to be located between at least one chain ring and the motor chain ring, the chain guide plate being configured to keep the chain leading to the rear wheel and the chain leading to the motor physically securely separated.
33. The mounting set according to claim 19, further comprising a motor with a drive cog, which disconnects from the motor when turning in one particular direction by using a free-wheel assembly.
34. The mounting set according to claim 19, further comprising a controller holder, which can be attached to a handlebar stem of the cycle using bolts and threads already existing in the handlebar stem for the attachment of a handlebar using a clamp.
35. The mounting set according to claim 19, further comprising a battery, which is connectable using a plug and wire, wherein at least one of the wire or the battery is designed in at least one of length or form and size, respectively, to allow for the battery to be transported by the rider in a backpack during a ride.
36. A cycle including a mounting set for mounting an electric motor to a cycle, the mounting set including an adapter for attaching the electric motor, the adapter being configured to be attached to at least one side of a bottom bracket tube and at least one point on a down tube, the adapter including mounting holes configured to attach the adapter to at least one side of the bottom bracket tube using an attachment device and bolts.
Type: Application
Filed: Jul 20, 2011
Publication Date: Jun 20, 2013
Inventors: Daniel Preining (Salzburg), Matthias Eitschberger (Marbach)
Application Number: 13/818,701
International Classification: B62M 6/40 (20060101);