WO2004067121A1 - Vehicule a moteur - Google Patents

Vehicule a moteur Download PDF

Info

Publication number
WO2004067121A1
WO2004067121A1 PCT/SG2003/000016 SG0300016W WO2004067121A1 WO 2004067121 A1 WO2004067121 A1 WO 2004067121A1 SG 0300016 W SG0300016 W SG 0300016W WO 2004067121 A1 WO2004067121 A1 WO 2004067121A1
Authority
WO
WIPO (PCT)
Prior art keywords
wheels
conveyance according
board
powered conveyance
pair
Prior art date
Application number
PCT/SG2003/000016
Other languages
English (en)
Inventor
Kwang Hwa Quek
Original Assignee
Kwang Hwa Quek
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 Kwang Hwa Quek filed Critical Kwang Hwa Quek
Priority to AU2003303807A priority Critical patent/AU2003303807A1/en
Priority to PCT/SG2003/000016 priority patent/WO2004067121A1/fr
Publication of WO2004067121A1 publication Critical patent/WO2004067121A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C17/00—Roller skates; Skate-boards
    • A63C17/01—Skateboards
    • A63C17/011—Skateboards with steering mechanisms
    • A63C17/012—Skateboards with steering mechanisms with a truck, i.e. with steering mechanism comprising an inclined geometrical axis to convert lateral tilting of the board in steering of the wheel axis
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C17/00—Roller skates; Skate-boards
    • A63C17/01—Skateboards
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C17/00—Roller skates; Skate-boards
    • A63C17/01—Skateboards
    • A63C17/014—Wheel arrangements
    • A63C17/015—Wheel arrangements with wheels arranged in two pairs
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C17/00—Roller skates; Skate-boards
    • A63C17/12—Roller skates; Skate-boards with driving mechanisms
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C17/00—Roller skates; Skate-boards
    • A63C17/14—Roller skates; Skate-boards with brakes, e.g. toe stoppers, freewheel roller clutches
    • A63C2017/1463—Foot or toe operated

Definitions

  • the present invention relates to a powered conveyance including, but is not limited to, a motorised skateboard.
  • Pedestrial mobility is an important aspect of modern living within cities. This will become more important in the future as the size of cities expand.
  • Existing skateboards are unpowered and rely on the user to provide locomotion to the board. This can make the user tired, hot and bothered.
  • the prior art also includes motorised scooters which include a steering column and handles which project upwardly from the body of the scooter on which the user rides/sits to facilitate steering of a front wheel of the scooter. Due to the steering column and handles, scooters are not as suited for storage as a skateboard. Scooters are also not self supporting on their two wheels.
  • the present invention seeks to provide a powered conveyance that provides some of the advantages of a skateboard, some of the advantages of a motorised scooter and attempts to overcome or at least minimise the disadvantages of each.
  • a powered conveyance comprising at least: a board on which the user can stand in use; a first pair of wheels rotatably mounted to the board; a second set of one or more wheels rotatably mounted to the board; a drive means coupled to at least one of the wheels for rotating said at least one of the wheels to propel the conveyance; a brake means for slowing or stopping the conveyance; and a turning means for changing the direction of travel of a conveyance.
  • the second set of one or more wheels is a second pair of wheels.
  • the drive means is coupled to at least one of the first pair of wheels. More preferably, the drive means is coupled to both wheels of the first pair of wheels.
  • each of the first pair of wheels are coupled to an axle.
  • each of the axels of the first pair of wheels are coupled to one another by a differential.
  • the drive means is in the form of an electric motor coupled by a drive chain or drive belt to a drive pulley coupled to one of the first pair of wheels.
  • the electric motor is provided with an electric current when an accelerator pedal mounted on an upper surface of the board is depressed.
  • the accelerator pedal is mounted at the front end of the upper surface of the board.
  • the accelerator pedal is inclined at an acute angle relative to the general plane of the board.
  • the drive means includes a gear means for controlling the gear ratio between the electric motor and one of the first pair of wheels.
  • the gear means includes a plurality of gear cogs, each gear cog having a different circumference.
  • the gear means also includes a guide means for moving the drive chain to engage one of the gear cogs.
  • the brake means includes a disc coupled to an axle extending between the wheels of the first pair of wheels.
  • the disc may be coupled to an axle extending between the wheels of the second set of wheels.
  • a brake pad is arranged to make frictional contact with the disc upon the application of the brake means.
  • the brake means is arranged to be applied when a brake pedal projecting upwardly from an upper surface of the board is depressed.
  • the brake pedal is operatively connected to the brake pad by a cable whereby depression of the brake pedal causes the brake pad to make frictional contact with the brake disc.
  • the brake pad is biased to be spaced from the disc unless the brake pad is depressed.
  • the turning means is in the form of means for allowing the first pair of wheels to pivot in relation to the board.
  • the turning means is in the form of means for allowing the second set of one or more wheels to pivot in relation to the board.
  • the turning means is in the form of a means for allowing the first pair of wheels to pivot relative to the second set of one or more wheels. More preferably, in use, the pivoting is about an axis perpendicular to a plane disposed at an acute angle to a plane coinciding with the ground.
  • the pivoting of the first pair of wheels is such that the axis of pivoting points upwardly in the general direction of the second set of wheels.
  • the turning means operates in a similar manner to the means for turning a normal skateboard.
  • the conveyance further comprises means for controlling the drive means and brake means mounted on an upper surface of the board for control by a foot of the user.
  • Figure 1 is an upper perspective view of a preferred embodiment of the powered conveyance in accordance with the present invention.
  • Figure 2 is a plan view of the powered conveyance of Figure 1 ;
  • Figure 3 is a side view of the powered conveyance of Figure 1;
  • Figure 4 is a cross-sectional elevation along the line 4-4 in Figure 1;
  • Figure 5 is a cross-sectional elevation across the line 5-5 of Figure 1;
  • Figure 6 is an enlarged side elevation of a rear wheel arrangement of the powered conveyance of Figure 1;
  • Figure 7 is an enlarged elevation of a portion of Figure 3;
  • Figure 8 is a bottom view of a front wheel arrangement of the powered conveyance of Figure 1;
  • Figure 9 is a side elevation showing a front section of the conveyance of Figure 1;
  • Figure 10 is a perspective view of another preferred embodiment of the powered conveyance in accordance with the present invention.
  • Figure 11 is a side elevation of a front wheel arrangement of the powered conveyance of Figure 10;
  • Figure 12 is a side elevation of an alternative to the front wheel arrangement shown in Figure 11;
  • Figure 13 is a cross-sectional side elevation of the wheel arrangement of Figure 11;
  • Figure 14 is a cross-sectional side elevation of the wheel arrangement of Figure 13, viewed from the opposite side.
  • a powered conveyance 10 which includes a board 12 on which the user can stand in use.
  • a first pair of wheels 14 and a second pair of wheels 20.
  • the first pair of wheels 14 are at the rear end of the board 12 and the second pair of wheels 20 are at the front end of the board 12.
  • An inclined control deck 15 is mounted on the board 12 for controlling a drive means and brake means of the conveynace.
  • An electric motor 26 is coupled to the rear set of wheels 14 by a drive belt or chain 28.
  • the rear set of wheels 14 incorporate a brake means 32 which will be described in more detail below.
  • the motor 26 is mounted to the board 12 by motor housing 56.
  • the motor 26 is provided with a sprocketed wheel 60 which engages the drive chain 28.
  • the electric motor 26 is coupled to a drive pulley 62 by the chain 28, which is in turn directly coupled to one of the wheels 18 of the first set of wheels 14.
  • the drive pulley 62 is coupled to a wheel axle and thus drives wheel 18.
  • the pulley 62 may be socketed to engage the drive chain 28.
  • rotation of the motor 26 turns the sprocketed wheel 60, which in turn drives the drive chain 28, which in turn drives the pulley 62, which in turn drives the ground engaging wheel 18, thereby propelling the conveyance 10.
  • a battery 34 is secured to the underside of the board 12 between the sets of wheels 14 and 20.
  • the battery 34 may be provided with a power inlet plug 36 for recharging.
  • the battery 34 powers the motor 26 when an accelerator pedal 48 on the control deck 15 is depressed.
  • a pair of accelerator pedals 48 are provided to allow for left or right foot activation.
  • the accelerator pedals 48 are coupled to a pair of springs 46 that urge each accelerator pedal 48 to their normal position. However when one of the accelerator pedals 48 is depressed, a bar extending between each of the accelerator springs 46 depresses a digital controller or a variable resister 50 or some other means which controls the amount of current provided by the battery 34 to the electric motor 26.
  • the current controls the speed of the motor 26 and thus the rate of propulsion of the conveyance 10. In this way the speed of the conveyance 10 can be controlled by the amount of depression of one of the accelerator pedals 48.
  • Other suitable electronic/mechanical control means may be employed for controlling the speed of the motor 26.
  • the wheels of each set of wheels have a split axle 64 extending therebetween.
  • Each part of the axle 64 is coupled to the other part by a differential 72.
  • wheels 16 and 18 are coupled together by the split axle 64 and the differential 72 which allows the wheels 16 and 18 to rotate at different speeds, such as when the conveyance is turning, at the same time as torque is applied to both wheels.
  • the differential 72 includes a pair of oppositely facing bevelled cogs with another pair of oppositely facing bevelled cogs engaged therebetween.
  • the axle extends through a casing 66 and is rotatable within the casing 66 by use of bearings (eg. ball bearings).
  • the casing is in the form of a T-piece with a bolt 54 projecting upwardly that extends into a resilient mount 52.
  • the mount 52 is cylindrical with the bolt 54 extending through a hole therein.
  • the mount 52 is formed of polyurethane or other suitable material.
  • the bolt 54 extends through the hole and is secured in place by a nut 68.
  • the mount 52 is secured to a mounting plate or track 70 which is then in turn secured to the board 12.
  • the motor housing 56 may be coupled to the track 70.
  • the polyurethane mount 52 is resiliently flexible and allows the bolt 54 to pivot from side to side. This allows the wheels to pivot or tilt in relation to the board and in relation to each other.
  • Each of the mounts 52 of the front and second set of wheels are disposed at an angle to point towards each other as best shown in Figure 3.
  • the wheels tilt relative to the board and also move closer to one another on the side on which the user is leaning.
  • the wheels on the opposite side move apart from one another.
  • the tilting of the wheels and movement of the first set of wheels relative to the second set of wheels causes the board to rum in the direction which the user is leaning as it moves along.
  • turning can be achieved in a similar manner to a standard skateboard.
  • the bottom rear of the board includes a pad 58 to protect that part of the board and the motor 26.
  • the pad 56 prevents that part of the board from touching the ground and may also act as an emergency ground engaging (skid) brake in a similar manner to a normal skateboard.
  • the brake means 32 includes a brake disc 74 coupled to each part 64 and 64' of the split axle between the set of wheels 14.
  • the brake discs 74 rotate with the corresponding wheel.
  • An annular brake pad 76 is located adjacent each disc 74 and is prevented from rotating relative to the casing 66.
  • Each brake pad 76 is movable relative to the wheels 16 and 18 such that when the brake is applied the brake pad 76 makes contact with the respective disc 74 and provides a frictional braking force against the disc 74.
  • Each brake pad 76 is coupled to a mounting plate of a drum 80 which extends around the casing 66. The drum 80 is able to slide longitudinally relative to the casing 66.
  • a brake cable 82 is coupled to the back plate 78, which is fixed to the casing 66.
  • the brake cable 82 is also coupled to and able to move the drum 80 and thus the pad 76 towards the disc 74 to make contact therewith as the brake is applied.
  • a spring 84 extending between the middle of the T-piece and the drum biases the drum 80 to engage the brake.
  • the cable 82 extends from the drum 80 to a brake pedal 40. When the brake pedal 40 is depressed the cable 82 is arranged to be pulled which moves the drum 80 relative to the back plate 78, which in turn moves the pad 76 into contact with the disc 74. The greater the pressure applied to the brake pedal 40 the greater the frictional braking force applied by the pad 76 to the disc 74.
  • the brake pedal 40 is constructed of an arc shaped pedal coupled to a pivotal support member 44 biased by spring 46 to a non-braking position.
  • An alternative mechanical or electronic means of applying the brakes may be employed.
  • the brake pedal 40 may be connected to a variable resister that controls flow to an actuator such that the pressure applied to the brake 40 is electronically controlled to be proportional to the braking force applied by the pad 76 to the disc 74.
  • the accelerator pedals 48 are inclined at an angle relative to the board 12 and formed within the control deck 15.
  • the brake pedal 40 provides means of hooking up the board with the users foot to change direction by lifting the set of wheels 20 from the ground and riding on the set of wheels 14 while the orientation of the board is changed. Likewise, the rear of the board can be depressed to have a similar effect.
  • Sophisticated electronics can be provided that allow recovery of the current from the motor to recharge the battery while the skateboard is moving without the need for power. This may be, for example, if the board is propelled by the user in the usual manner or if the board is rolling downhill.
  • the motor can act as an electric brake or speed limiter.
  • the drive means of the powered conveyance includes a gear means.
  • the gear means includes pedal 90 that pivots about point 92 and moves in a side to side direction as indicated by the arrows.
  • the user can move the pedal 90 in a first direction, such as pivoting to the left to change down a gear and can pivot the pedal 90 to the right to change up a gear.
  • the drive means including electric motor 26, is coupled to the front second set of wheels 20, although it could equally be affixed to the rear set of wheels 14.
  • the motor is mounted at the front, more space is available for the motor, while rear mounting allows for greater manoeuvrability for performing stunts.
  • the wheel 24 is shown in phantom. Coupled to the wheel 24 are three cogs 94.
  • the drive belt/chain 28 is shown engaging the centre cog 94.
  • Each of the cogs operates as a drive pulley 62 when engaged by the drive chain 28.
  • the position of the drive chain 28 is determined by a guide 96.
  • the guide 96 is moveable by use of the pedal 90 to change the cog engaged by the drive belt/chain 28 As the drive chain 28 moves between gears 94 slack within the drive chain is taken up by cog 98 which is spring mounted to the housing 56.
  • cog 98 which is spring mounted to the housing 56.
  • the alternative shown in Figure 12 works in the same manner, except that the electric motor 26 is on the opposite side of the wheel relative to the resilient mount 52. This configuration may be employed if the motor 26 is positioned on the rear of the board.
  • the gears 94 have different diameters thus providing a different gear ratio between the pulley 60 on the electric motor 26 and the cog selected.
  • Moving the position of the guide 96 moves the drive chain between positions, so that it can take up engagement with the respective cog.
  • An example of a mechanism for moving the guide 96 is shown in Figure 14.
  • the guide 96 is coupled to a back plate 100 which is coupled to cable 102 such that when the cable 102 is pulled the backing plate 100 moves relative to a mounting plate 104 to which the casing of the cable 102 is mounted.
  • the back plate 100 is slidably mounted (not shown) to mounting plate 104.
  • the mounting plate 104 is mounted to the casing 66.
  • gear pedal 90 moves in one direction in one direction to shift the guide 96 to the left thereby changing the gear down or when the gear pedal 90 is moved to the right it shifts the guide 96 to the right thereby shifting the gear up.
  • gear mechanism is similar to that used of gears used on a bicycle.

Landscapes

  • Motorcycle And Bicycle Frame (AREA)

Abstract

L'invention concerne un véhicule à moteur (10) comprenant une planche (12) sur laquelle un utilisateur peut se tenir debout, une première paire de roues (14) montées rotatives à l'arrière de la planche, un second ensemble d'une ou plusieurs roues (20) montées rotatives à l'avant de la planche, un moyen d'entraînement couplé à au moins une des roues, permettant de propulser le véhicule, un moyen de freinage permettant de ralentir ou de stopper le véhicule et un moyen de direction permettant de modifier la direction de déplacement du véhicule.
PCT/SG2003/000016 2003-01-28 2003-01-28 Vehicule a moteur WO2004067121A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2003303807A AU2003303807A1 (en) 2003-01-28 2003-01-28 Powered conveyance
PCT/SG2003/000016 WO2004067121A1 (fr) 2003-01-28 2003-01-28 Vehicule a moteur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SG2003/000016 WO2004067121A1 (fr) 2003-01-28 2003-01-28 Vehicule a moteur

Publications (1)

Publication Number Publication Date
WO2004067121A1 true WO2004067121A1 (fr) 2004-08-12

Family

ID=32823043

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SG2003/000016 WO2004067121A1 (fr) 2003-01-28 2003-01-28 Vehicule a moteur

Country Status (2)

Country Link
AU (1) AU2003303807A1 (fr)
WO (1) WO2004067121A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11406890B1 (en) 2017-08-25 2022-08-09 David Jackson Skateboard assembly

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4143728A (en) * 1977-01-06 1979-03-13 Samuel Shiber Motorized skateboard
US5893425A (en) * 1996-07-22 1999-04-13 Finkle; Louis J. Remote control electric powered skateboard
WO1999039787A1 (fr) * 1998-02-03 1999-08-12 Dirtthingz (Nz) Ltd. Ameliorations concernant des vehicules de loisir
DE20105701U1 (de) * 2001-03-31 2001-09-13 Brenner Peter Elektrisch angetriebenes Skateboard
FR2810895A1 (fr) * 2000-06-30 2002-01-04 David Nicolas Cauchy Planche a roulettes a moteur electrique, commandee par deux interrupteurs poussoirs, offrant trois ou quatre fonctions dont les fonctions freinage et roue libre

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4143728A (en) * 1977-01-06 1979-03-13 Samuel Shiber Motorized skateboard
US5893425A (en) * 1996-07-22 1999-04-13 Finkle; Louis J. Remote control electric powered skateboard
WO1999039787A1 (fr) * 1998-02-03 1999-08-12 Dirtthingz (Nz) Ltd. Ameliorations concernant des vehicules de loisir
FR2810895A1 (fr) * 2000-06-30 2002-01-04 David Nicolas Cauchy Planche a roulettes a moteur electrique, commandee par deux interrupteurs poussoirs, offrant trois ou quatre fonctions dont les fonctions freinage et roue libre
DE20105701U1 (de) * 2001-03-31 2001-09-13 Brenner Peter Elektrisch angetriebenes Skateboard

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11406890B1 (en) 2017-08-25 2022-08-09 David Jackson Skateboard assembly

Also Published As

Publication number Publication date
AU2003303807A1 (en) 2004-08-23

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