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WO2003059725A2 - Moteur pour patinette - Google Patents

Moteur pour patinette Download PDF

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Publication number
WO2003059725A2
WO2003059725A2 PCT/US2003/000694 US0300694W WO03059725A2 WO 2003059725 A2 WO2003059725 A2 WO 2003059725A2 US 0300694 W US0300694 W US 0300694W WO 03059725 A2 WO03059725 A2 WO 03059725A2
Authority
WO
WIPO (PCT)
Prior art keywords
motor
housing
transport
attachment
motor device
Prior art date
Application number
PCT/US2003/000694
Other languages
English (en)
Other versions
WO2003059725A3 (fr
Inventor
Leonard A. Ducharme
Paul R. Ressler
David O. Meyers
Thomas W. Peterson
Original Assignee
Sbs Enterprises, Llc
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 Sbs Enterprises, Llc filed Critical Sbs Enterprises, Llc
Priority to AU2003210476A priority Critical patent/AU2003210476A1/en
Publication of WO2003059725A2 publication Critical patent/WO2003059725A2/fr
Publication of WO2003059725A3 publication Critical patent/WO2003059725A3/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
    • 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
    • B62M6/75—Rider propelled cycles with auxiliary electric motor power-driven by friction rollers or gears engaging the ground wheel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/52—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by DC-motors
    • 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
    • B62K3/00—Bicycles
    • B62K3/002—Bicycles without a seat, i.e. the rider operating the vehicle in a standing position, e.g. non-motorized scooters; non-motorized scooters with skis or runners
    • 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
    • B62M13/00—Transmissions characterised by use of friction rollers engaging the periphery of the ground wheel
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Definitions

  • the present invention relates generally to scooter accessories, and more particularly, but not necessarily entirely, to drive and attachment accessories for scooters that allow the drive to be easily attached and detached from the scooter.
  • the batteries provide power to a drive assembly that is fixed on the rear wheel of the scooter.
  • a bracket for securing the batteries is fastened by a bolt making removal of the batteries difficult.
  • the increased weight of the scooter due to the batteries and the drive assembly makes it difficult to manipulate the scooter when performing tricks. Also, the increased weight makes handling the scooter more difficult and cumbersome in certain situations.
  • the position of the batteries under the scooter makes them vulnerable to damage due to contact with objects on the drive path.
  • the batteries are difficult to remove, the operator of the scooter cannot easily interchange depleted batteries with charged batteries to enable use of the scooter while batteries are being charged.
  • scooter drive device that is easy to attach and detach from a scooter so that the scooter may be used either with or without the drive device. It would also be an advancement in the art to provide a scooter drive device that may be attached to scooters of different sizes and positioned above the front wheel of the scooter so that the drive device is not damaged if the scooter contacts an object in the drive path.
  • the prior art is thus characterized by several disadvantages that are addressed by the present invention.
  • the present invention minimizes, and in some aspects eliminates, the failures, and other problems of the prior art, by utilizing the methods and structural features described herein.
  • FIG. 1 is an exploded perspective view of a scooter and motor device detached therefrom in accordance with the principles of the present invention
  • FIG. 2 is a perspective view of a scooter and a motor device attached thereto in accordance with the principles of the present invention
  • FIG. 3 is an exploded perspective view of the motor device and motor support in accordance with the principles of the present invention
  • FIG. 4 is an exploded perspective view of the motor support on a scooter
  • FIG. 5 is a break-away perspective view of the motor device being installed on the scooter
  • FIG. 6 is a perspective view of the rear side of the housing
  • FIG. 7 is a rear view of the motor device;
  • FIG. 8 is a rear perspective view of the motor support;
  • FIG. 9 is a plan view of the motor support and mounting bracket attached to a section of a scooter post;
  • FIG. 10 is a break-away perspective view of a motor support being attached to a scooter
  • FIG. 11 is a bottom view of a motor support
  • FIG. 12 is a break-away side view of one embodiment of a locking mechanism used to lock the motor device on the scooter. DETAILED DESCRIPTION OF THE INVENTION
  • the assembly 10 may include a motor support 12, shown in FIG. 1, secured to the front of a scooter 14.
  • the motor support 12 may include a front face 12a and a rear face 12b.
  • the front face 12a may include either planar portion or a rounded portion or some other suitable shape, and in any such case the front face 12a defines an imaginary frontal line 12c described as follows: If the front face 12a is planar, the frontal line 12c is an extension of the front face 12a; if the front face 12a is symmetrically rounded, the frontal line 12c is tangential to a center portion of said symmetrically rounded front face .
  • a friction-drive motor device 16 may be detachably mounted to the motor support 12, by a manually operable engagement/release arm 18.
  • the motor device 16 may be configured and arranged such that when it is attached to the motor support 12 for operation, a friction wheel or drive wheel 20 (as best shown in FIG. 7) may be disposed in contact with a front wheel 22 of the scooter 14.
  • a control switch 24 may be attached to handle bars 26 of the scooter 14, and the switch 24 may be electrically connected to the motor device 16. It will be appreciated that the front wheel 22 includes an axis of rotation 22a.
  • the assembly is very convenient and user friendly.
  • the motor support 12 may remain attached to the scooter 14 and does not affect the normal operation of the scooter 14.
  • the user may simply attach the motor device 16 to the motor support 12 by sliding the motor device 16 in place and securing it by pressing the arm 18 into the locked position, as discussed in greater detail below.
  • a cord 80 may then be plugged into the switch
  • the motor device 16 may include a chassis or housing 28 for housing a power unit or battery pack 30.
  • the battery pack 30 may include a single battery or a grouping of batteries connected together.
  • the battery pack 30 may include a rechargeable sealed lead, nicad, or nickel metal hydride battery for example, or any other type of battery known to those skilled in the art.
  • the battery pack 30 may include two six volt, eight amp batteries forged into one twelve volt unit, or a single twelve volt battery, for example. It will be appreciated that batteries of different types, voltages, and amperages may be used within the scope of the present invention.
  • the battery pack 30 may be configured such that in a low speed setting, electricity may be drawn from just one of the batteries, whereas in a high speed setting, electricity may be drawn from more than one battery.
  • the low speed setting may allow the motor device 16 to draw electricity out of one battery until the electricity is depleted, then automatically begin drawing electricity from another battery.
  • the motor device 16 may be switched from the low speed setting to the high speed setting by activating a voltage switch 74.
  • This dual mode/voltage system allows more efficient use of electrical power.
  • the motor device 16 may be also have other modes of operation, such as intermediate speeds or a variable speed mode, within the scope of the present invention.
  • the variable speed mode may be operated using a variable speed switch (not shown) such as a switch that includes a potentiometer, for example, to adjust the amount of power supplied by the motor device 16.
  • a variable speed switch such as a switch that includes a potentiometer, for example, to adjust the amount of power supplied by the motor device 16.
  • the principles of the present invention may also be used with power units other than batteries, such as gas operated motors for example .
  • the motor device 16 may also include various components such as those shown for illustrative purposes in FIG. 3 including an electric motor 32, a motor cover 34, and a front cover 36 to house and protect the battery pack 30 and the electric motor 32.
  • the front cover 36 may have vents 37 to allow air to circulate within the housing 28 for cooling and ventilation purposes.
  • the motor device 16 may also include components such as gears 56, drive wheel shafts 58, clutch bearings 60, bearings 62, wheels 64, and control circuit boards 66.
  • the motor device 16 may be configured such that the electric motor 32 may be positioned in substantial upward alignment with the drive wheel 20, rather than laterally offset with the drive wheel 20 so that the width of the motor device 16 may be reduced.
  • Other components that may be included in the motor device 16 include devices for controlling the electronics of the motor device 16 such as circuit breakers 68, relays 70, on-off switches 72, and voltage switches 74 for example. It will be appreciated that various other mechanical or electrical devices may also be included as part of the motor device 16 within the scope of the present invention.
  • the clutch bearing 60 may be attached to the drive wheel 20 so as to allow the drive wheel 20 to be disengaged from the motor 32. This allows the drive wheel 20 to spin freely without a force being exerted by the motor 32. For example, if the driver of the scooter 14 desires to coast down a hill or push the scooter 14 with the motor 32 turned off, engagement of the drive wheel 20 with the motor 32 may serve as a brake since the drive wheel 20 may be turning faster than the motor 32. Thus, the control switch 24 may be operated to activate the clutch bearing 60 to disengage the drive wheel 20 from the motor 32 so that the drive wheel 20 can spin without resistance from the motor 32.
  • the drive wheel 20 may be configured to frictionally engage the front wheel 22 of the scooter 14.
  • the drive wheel 20 may have ridges 21, shown most clearly in FIGS. 3 and 7, to assist in gripping the front wheel 22.
  • the ridges 21 may be formed on an exterior surface of the drive wheel 20 and may be oriented parallel to an axis of the drive wheel 20.
  • the drive wheel 20 may have a diameter of at least one half inch, such as approximately one inch.
  • the drive wheel 20 may have ridges 21 configured on the surface of the drive wheel 20 such that more than approximately thirty ridges 21 extend along the length of the drive wheel 20.
  • Other embodiments of the drive wheel 20 may be configured to have more than approximately fifty ridges 21, or more than approximately seventy-five ridges 21, for example.
  • the diameter of the drive wheel 20 and the number of ridges 21 may be configured to provide suitable gripping and driving characteristics, and that drive wheels 20 having other diameters and numbers of ridges 21 may be used within the scope of the present invention.
  • the drive wheel 20 may also be configured to have a diameter ratio with respect to the front wheel 22 of the scooter 14 of at least approximately 0.1, such as approximately 0.25, for example. Accordingly, a drive wheel 20 having a diameter of one inch, and a front wheel 22 having a diameter of approximately four inches, would have a diameter ratio of approximately 0.25.
  • the control circuit board 66 may be used to control features of the electric motor 32 such a "push start" feature.
  • the circuit board 66 may be programmed to require the front wheel 22 of the scooter 14 be moving at a certain speed before the electric motor 32 may be engaged. This may allow the motor 32 to operate more efficiently and reduce wear and damage to the motor 32.
  • the motor device 16 may also include an attachment lever, also referred to as a lever cam 38 on each side of the arm 18.
  • the lever cam 38 may form part of an attachment means for attaching the motor device 16 to the scooter 14.
  • the lever cam 38 may be fixedly attached to the arm 18 through a shaft 52 such that the lever cam 38 rotates with the arm 18 about the shaft 52.
  • the lever cam 38 may also have a tab 39 configured to be received within the motor support 12 to attach the motor device 16 to the motor support 12.
  • a spring bracket 40 may also be attached to the shaft 52 and to a biasing member or spring 42 so that the motor device 16 may be biased into engagement with the scooter front wheel 22 as discussed more fully below.
  • a switch housing 76 may be provided for supporting the control switch lever 24, and for attaching the control switch lever 24 to the scooter handle bars 26 as shown in FIGS. 1-3.
  • the switch housing 76 may have a handlebar clamp 77 and/or a post clamp 79 in the form of opposing curved projections.
  • the handlebar clamp 77 and the post clamp 79 may be formed of a resilient material adapted to deform elastically. This allows the handlebar clamp 77 to receive the handlebar between the opposing curved projections, and the post clamp 79 to similarly receive the post 15. Thus the switch housing 76 may be snapped into position on the scooter 14.
  • the switch housing 76 may be configured to fit on handlebars 26 and posts 15 of different dimensions due to the elasticity of the handlebar clamp 77 and the post clamp 79. Tape or other shimming mechanism may be used to increase the dimension of the handlebar 26 or post 15 in the event the handlebars 26 or posts 15 are too small. Accordingly, the switch housing 76 may be adapted to fit on scooters 14 having handlebars 26 or posts 15 of various different dimensions. It will be appreciated that other attachment mechanisms, such as fasteners or straps for example, may be used to attach the switch lever 24 to the handle bars 26 within the scope of the present invention.
  • a switch trigger 78 as shown in FIG. 3, may also be supported within the switch housing 76 to be operated by the switch lever 24.
  • the switch trigger 78 may be attached to a cord 80 and connected to the housing 28 through a jack 82 and a plug 84.
  • the plug 84 may be positioned on the housing 28.
  • the cord 80 may have the jack 82 and plug 84 located in a middle portion of the cord 80, a distance spaced apart from the housing 28 to allow the cord 80 to be separated. This may improve safety for a rider and reduce damage to the system 10 in the event the cord 80 strikes an object during operation of the scooter 14, in that the jack 82 and plug 84 are releasably connected to each other to enable them to release response to the force of the object striking the cord.
  • a further advantage of this feature is that the jack 82 and plug 84 detach if the motor device 16 detaches and falls from the scooter 14, thereby preventing the falling motor device 16 from damagably yanking the cord 80 from the control switch 24 or pulling the switch 24 from the handle bars 26. It will also be appreciated, that other types of switches and connecting devices may be used to operate the motor device 16 within the scope of the present invention. Moreover, a wireless operating system may also be used to operate the motor device 16 if so desired.
  • the front cover 36 may be hingedly attached to the housing 28 near the bottom, and the top portion of the front cover 36 may include a latch 86.
  • the latch 86 may be a resilient member fixed to the front cover 36 and having a catch 88 that may be received in a keeper 90 in the housing 28.
  • the keeper 90 may be in the form of an opening for example, having a sidewall that may be configured to abut with the catch 88 to prevent opening of the front cover 36.
  • the catch 88 may be depressed causing the latch 86 to deflect such that the catch 88 may be removed from the keeper 90 and the front cover 36 may then be opened.
  • the latch 86 and keeper 90 may be formed in various different configurations within the scope of the present invention.
  • the front cover 36 and latch 86 of the present invention provide advantages over other prior art devices in that the battery pack 30 may be easily accessed without undertaking the laborious task of loosening bolts or screws. Accordingly, the battery pack 30 may be easily removed for maintenance or recharging, if desired, without the use of tools such as screw drivers or wrenches.
  • the motor support 12 may include a mounting bracket 44 which may be attached to a post 15 of the scooter 14 using fasteners 46 as shown most clearly in FIG. 4.
  • the bracket 44 may have a curved or substantially "V" shaped interior surface 45, as shown in FIG. 9, such that posts 15 of different sizes may fit within the mounting bracket 44 in a stable manner without appearing cumbersome.
  • the motor support 12 may also have a complementary curved or substantially "V" shaped interior surface 47.
  • the motor support 12 and mounting bracket 44 may be configured to contact the post 15 at multiple contact points 51 to provide a stable fit with posts 15 of different sizes. As shown in the embodiment of FIG. 9, four contact points 51 may be established.
  • Two of the contact points 51 may be positioned between the motor support 12 and the post 15, and the other two contact points 51 may be positioned between the mounting bracket 44 and the post 15. It will be appreciated that posts 15 having a smaller diameter may contact the mounting bracket 44 and the motor support 12 at contact points 51 closer to a bottom of the "V" shaped surface, whereas posts 15 having a larger diameter may contact the mounting bracket 44 and the motor support 12 at contact points 51 positioned closer to the top of the "V" shaped surface. It will be further appreciated that the bracket 44 and motor support 12 may have other contacting shapes within the scope of the present invention.
  • the motor support 12 may also be configured such that a single mounting bracket 44 may be used to firmly attach the motor support 12 to the post 15 of the scooter 14 at a single connectivity area, or multiple mounting brackets 44 may be used within the scope of the present invention.
  • the motor support 12 may include a mounting slot 48 configured to receive the tab 39 of the lever cam 38.
  • the mounting slot 48 may be defined in part by an abutment wall 49 that engages with the tab 39 when the motor device 16 is installed to prevent the motor device 16 from moving forward, away from the scooter 14.
  • the motor support 12 may also include pegs or projections 50 for inserting in grooves 92 (see FIG. 6) of the housing 28 to provide additional lateral support of the motor device 16 on the motor support 12.
  • the motor support 12 may be configured to be relatively thin and non-obtrusive so it can be substantially permanently attached to the scooter 14 without limiting use of the scooter 14 when the motor device 16 is not attached. Thus, once the motor support 12 is attached to the scooter 14, it need not be removed and re-installed each time the motor device 16 is removed and re- installed.
  • the motor support 12 may be aligned when it is installed as shown most clearly in FIG. 10.
  • the bottom of the motor support 12 may include fork slots 53 formed in a support base 59 for receiving a front fork 55 of the scooter 14.
  • the fork slots are defined by an end edge 53a and opposing side edges 53b, which edges may comprise orthogonal edges forming a square-shaped slot end.
  • the front fork 55 includes two yoked prongs as shown, the fork being separate from the post 15.
  • the fork slots 53 may be dimensioned to receive forks 55 of most scooters 14 such that the motor support 12 may be properly oriented on the post 15.
  • the slots 53 may be configured and arranged to receive the prongs of the front fork 55 to thereby position the motor support 12 such that the frontal line 12c of the front face 12a of said motor support 12 is parallel to the axis of rotation 22a of the wheel 22 of the scooter 14.
  • the scooter 14 is one type of transport, and may be referred to herein as a transport .
  • transport as used herein shall be construed broadly to include scooters or other user operable transports.
  • the motor support 12 may be stabilized against vertical movement on the post 15 by the support base 59 and a fork support 57 which may be positioned near the bottom of the motor support 12 as shown most clearly in FIG. 8.
  • the fork support 57 may be positioned above a top portion of fork 55, and the support base 59 may be positioned beneath the top portion of the fork 55 so that vertical movement of the motor support 12 may be prevented by the fork 55.
  • a window 63 or opening may be formed in the motor support 12 so that the post 15 may be more easily viewed during installation of the motor support 12 to facilitate positioning the motor support 12 with respect to the post 15. Also, the window 63 may be configured such that projections or strap rings on the post 15 may be received in the window 63.
  • the motor support 12 may be supported on top of the fork 55 by the support base 59. Alignment of the motor support 12 may be accomplished by contacting the protruding ledges 61, as best shown in FIG. 8, on a front edge of the top of the fork 55.
  • the motor support 12 may also include knobs 65, as best shown in FIGS. 10 and 11 to facilitate alignment of the motor support 12 with the fork 55. It will be appreciated that the knobs 65 may be formed in various different shapes, sizes and configurations within the scope of the present invention, for contacting a front edge of the top of the fork 55 for additional stability.
  • the motor support 12 may be adapted to be quickly installed on scooters 14 having various different sizes and configurations. Moreover, the motor support 12 may be configured to be easily aligned so that the motor device 16 can properly contact the front wheel 22.
  • An advantage of the present invention is provided in that the motor device 16 is capable of being attached to, and detached from, the motor support 12 easily and still provide a proper fit between the scooter front wheel 22 and the drive wheel 20. Furthermore, as the front wheel 22 wears, the present invention still allows a proper automatic fit between the front wheel 22 and the drive wheel 20.
  • the motor device 16 may be brought into contact with the projections 50 at the bottom of the motor support 12.
  • the projections 50 fit into grooves 92 in the housing 28, as shown in FIG. 6, such that the housing 28 may be allowed to move along a movement path defined by the grooves 92.
  • the grooves 92 may extend in a linear, up and down direction as the motor device 16 is positioned on the scooter 14 and the scooter 14 is oriented in an upright position. Accordingly, the movement path may be oriented in a substantially vertical direction with respect to the scooter 14 as the projections 50 slide within the grooves 92.
  • the projections 50 may be confined within the grooves 92 to prevent movement of the housing 28 in a lateral direction with respect to the scooter 14.
  • the lever cams 38 which may be attached to the arm 18, may then be placed into the mounting slots 48 of the motor support 12, as best shown in FIG. 5. As the arm 18 is rotated downwardly, the lever cams 38 rotate to draw the housing 28 into contact with the motor support 12 to fasten the motor device 16 to the scooter 14.
  • the arm 18 and the lever cams 38 may be attached to the housing 28 by the shaft 52 on the lever cams 38 passing through oblong openings 54 in the housing 28. This allows the housing 28 to move vertically with respect to the arm 18 and the lever cams 38, since the oblong openings 54 create a vertical path within which the shaft 52 may move.
  • the arm 18, the lever cams 38, the shafts 52 and the spring brackets 40 may be attached together and move together as a unit with respect to the housing 28 and the front cover 36.
  • the arm 18, the lever cams 38, the shafts 52 and the spring brackets 40 may remain fixed with respect to the scooter 14.
  • the remainder of the components of the motor device 16, including the housing 28 and the front cover 36, may be allowed to move with respect to the scooter 14 in an up and down direction.
  • the springs 42 may be connected to the housing 28 and to the spring bracket 40, as shown most clearly in FIG. 5.
  • the springs 42 bias movement of the housing 28 with respect to the motor support 12 in a downward direction to force the friction wheel 20 into contact with the front wheel 22 when the motor device 16 is installed on the motor support 12.
  • This feature of the present invention allows the motor device 16 to be attached to scooters 14 having different dimensions and having different sized front wheels 22.
  • the springs 42 allow the position of the motor device 16 to be automatically adjusted to properly fit against the front wheel 22.
  • the spring bracket 40 may have an adjustable connection between the bracket 40 and the springs 42. For example, a plurality of openings 41 may be positioned on the bracket 40 for receiving the springs 42 at different locations. This will allow the tension of the springs 42 to be adjusted so that the proper tension can be achieved despite different sized scooters 14, or front wheels 22.
  • the arm 18 may be configured to attach and release the motor device 16 by simple rotational movement of the arm 18 through less than 180 degrees.
  • the arm 18 may be attached to two oblong openings 54 on opposing sides of the back side of the housing 28, or the side of the housing 28 configured to face the scooter 14.
  • the arm 18 may extend from one oblong opening 54 around the front cover 36, which forms a side configured to face away from the scooter 14 , to the other oblong opening 54 on the opposite side of the housing 28. Accordingly, the arm 18 may form a loop or handle that may be grasped to facilitate handling of the motor device 16.
  • the arm 18 may have various different configurations, such as a lever on only one side of the housing 28 for example, within the scope of the present invention.
  • the arm 18 may also achieve an over-center or buckle type connection such that the arm 18 may be biased to engage with the front cover 36 when the motor device 16 is attached to the scooter 14. This helps secure the motor device 16 in place by preventing the arm 18 from inadvertently being raised and being disengaged from the scooter 14 if the scooter 14 hits a bump for example.
  • the motor device 16 may be equipped with a locking mechanism for locking the arm 18 in a desired position.
  • a resilient protrusion 94 as best shown in FIGS. 7 and 12, may be provided to engage the lever cam 38 to hold the arm 18 in a locked position.
  • the protrusion 94 may be integrally formed as part of the housing
  • the lever cam 38 may be released from the protrusion 94 by lifting on the arm 18 and utilizing the leverage created by the arm 18 to force the lever cam 38 in the direction of arrow 95 to unlock the arm 18 from the protrusion 94, whereas the forces caused by use of the scooter 14 would not cause a large enough force to release the arm 18.
  • the protrusion 94 may include a tab or button that may be depressed to deflect the protrusion 94 in the direction of arrow 96 to release the lever cam 38 so that the motor device 16 can be removed from the scooter 14.
  • the motor device 16 can be removed from the scooter 14 by simply lifting up on the arm 18 to disengage the tab 39 of the lever cam 38 from the mounting slot 48, and lifting up on the motor device 16 to slide the projections 50 out of the vertical grooves 92 in the housing 28.
  • a method of operating a transport with a motor device comprises the steps of:
  • a scooter drive device that is easy to attach and detach from a scooter so that the scooter may be used either with or without the drive device. It is another feature of the present invention to provide a scooter drive device that may be attached to scooters of different sizes and positioned above the front wheel of the scooter so that the drive device is not damaged if the scooter contacts an object in the drive path. It is a further feature of the present invention to provide a scooter drive device that can be interchanged so that one drive device may be recharged while another drive device is used to power the scooter.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Motorcycle And Bicycle Frame (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

Cette invention a trait à un ensemble moteur pour patinette se fixant aisément sur une patinette et s'en détachant tout aussi facilement. Cet ensemble peut comporter un carter contenant des composants tels que des accumulateurs et un moteur électrique. Un bras et un levier de fixation peuvent être attachés, mais de façon à rester amovibles, à ce carter. Cet ensemble peut également comporter un support de moteur à fixer à l'avant de la patinette. Ce support peut être configuré pour permettre un déplacement vertical du carter par rapport à la patinette. Le carter peut être sollicité par ressort et ce, afin de lui permettre d'entrer en contact avec la roue avant de la patinette, de sorte que l'ensemble moteur, qui est adaptable, peut être utilisé avec des patinettes dont les dimensions des roues avant diffèrent. Grâce au bras de déverrouillage, il est facile de fixer le carter sur la patinette comme de l'en détacher. Il est, ainsi, possible d'utiliser la patinette avec ou sans moteur.
PCT/US2003/000694 2002-01-10 2003-01-10 Moteur pour patinette WO2003059725A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003210476A AU2003210476A1 (en) 2002-01-10 2003-01-10 Scooter drive device

Applications Claiming Priority (4)

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US34748802P 2002-01-10 2002-01-10
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