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WO1998018669A1 - Vehicule - Google Patents

Vehicule Download PDF

Info

Publication number
WO1998018669A1
WO1998018669A1 PCT/GB1997/002916 GB9702916W WO9818669A1 WO 1998018669 A1 WO1998018669 A1 WO 1998018669A1 GB 9702916 W GB9702916 W GB 9702916W WO 9818669 A1 WO9818669 A1 WO 9818669A1
Authority
WO
WIPO (PCT)
Prior art keywords
axis
wheels
vehicle according
vehicle
disposed
Prior art date
Application number
PCT/GB1997/002916
Other languages
English (en)
Inventor
Peter Malcolm Baker
Original Assignee
Imtec Limited
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
Priority claimed from GBGB9622301.1A external-priority patent/GB9622301D0/en
Application filed by Imtec Limited filed Critical Imtec Limited
Priority to AU47159/97A priority Critical patent/AU732256B2/en
Priority to EP97909484A priority patent/EP0932543A1/fr
Publication of WO1998018669A1 publication Critical patent/WO1998018669A1/fr
Priority to US09/825,598 priority patent/US20010014569A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D37/00—Stabilising vehicle bodies without controlling suspension arrangements
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63G—MERRY-GO-ROUNDS; SWINGS; ROCKING-HORSES; CHUTES; SWITCHBACKS; SIMILAR DEVICES FOR PUBLIC AMUSEMENT
    • A63G25/00—Autocar-like self-drivers; Runways therefor
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H17/00—Toy vehicles, e.g. with self-drive; ; Cranes, winches or the like; Accessories therefor
    • A63H17/004—Stunt-cars, e.g. lifting front wheels, roll-over or invertible cars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D61/00—Motor vehicles or trailers, characterised by the arrangement or number of wheels, not otherwise provided for, e.g. four wheels in diamond pattern
    • 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
    • B62K17/00—Cycles not otherwise provided for
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H30/00—Remote-control arrangements specially adapted for toys, e.g. for toy vehicles
    • A63H30/02—Electrical arrangements
    • A63H30/04—Electrical arrangements using wireless transmission

Definitions

  • This invention relates to a vehicle which is primarily designed as a fun- art for leisure or competitive use, but which may also be a remotely-controlled toy.
  • wheel-chairs for the disabled having two wheels on a common axis which can be independently power-driven or kept stationary under the control of a joy-stick for the purpose of steering, and two castor wheels disposed not far in front of said axis.
  • Such wheel-chairs sometimes have elevating and/or reclineable seats, but the driveable wheels and the castor wheels are intended to remain in contact with the ground whilst, in order to prevent these wheel-chairs from accidentally overturning rearwardly, they usually have stabiliser means in the form of two small non-castonng wheels disposed behind said axis a short distance above ground level.
  • Another known design of electric wheel-chair for the disabled has two wheels on a common axis which can be independently power-driven or kept stationary under the control of a joy-stick for the purpose of steering, and two castor wheels disposed not far behind said axis, no stabiliser means being provided.
  • Remotely-controlled toy vehicles are also well known.
  • the object of the present invention is to provide a novel kind of vehicle in which its disposition, and that of its occupant unless it is a toy, is deliberately variable relative to the plane of the ground whilst exhibiting rapid turning and a higher degree of anoeuvreability than a conventionally steered vehicle. To this end, it utilises some of the features of electric wheel-chairs in a considerably modified form.
  • a vehicle comprises a chassis supporting two wheels on a common axis which can be independently power-driven or kept stationary, stabiliser means disposed in one plane on one side of said axis, and stabiliser means disposed in another plane inclined to said one plane on the other side of said axis, whereby the vehicle can be supported on the power-driven wheels and either of said stabiliser means, or balanced on the power-driven wheels alone, depending upon the weight distribution and the torque exerted at the wheels.
  • the stabiliser means in each plane preferably consist of at least one castor wheel.
  • the stabiliser means in each plane consist of two laterally-spaced castor wheels in order to reduce the possibility of the vehicle tipping sideways.
  • the stabiliser means in one plane are disposed at a longer distance from said axis and the stabiliser means m the other plane are disposed at a shorter distance from said axis.
  • At least the stabiliser means which are disposed at a longer distance from said axis are preferably mounted on the chassis by independent resilient suspension means.
  • a secondary seat may be provided in the vicinity of the stabiliser means which are disposed at a longer distance from said axis.
  • a seat is provided in the vicinity of said axis.
  • Control means for the power-driven wheels are preferably located within reach of the seat or of both seats .
  • control means comprise independent speed controllers for the respective wheels.
  • the speed controllers are twist grips .
  • control means comprise a joystick.
  • Each of the power-driven wheels may be driveable in either direction of rotation.
  • the power-driven wheels may be driven by respective electric motors powered by battery means.
  • the battery means are so disposed relative to said axis as to contribute to the requisite weight distribution.
  • the power-driven wheels are driven by respective internal combustion engines.
  • Figure 1 is a plan view of one specific embodiment of a fun-kart
  • Figure 2 is a side elevation of said one embodiment shown m full lines with front castor wheels m contact with the ground and in broken lines with rear castor wheels in contact with the ground.
  • Figure 3 is a plan view corresponding to Figure 1 of another specific embodiment of a fun-kart.
  • Figure 4 is a side elevation corresponding to Figure 2 of said other embodiment.
  • a fun-kart includes a chassis comprising a short rear portion 10 which supports two wheels 12 on a common axis 14, and a longer front portion 16 of tubular space-frame type connected to the rear portion 10 by hinge means (not shown) adjacent and parallel to said axis and disposed a short distance on the front side thereof.
  • the chassis portions 10 and 16 are urged apart by resilient means (not shown) thus providing a shock-absorbing suspension system for the fun-kart.
  • Stabiliser means comprising two castor wheels 18 supported towards the front end of the chassis portion 16 are disposed in one plane at a longer distance on the front side of the axis 14, and stabiliser means comprising two castor wheels 20 supported at the rear end of the rear chassis portion 10 are disposed in another plane inclined to said one plane at a shorter distance on the rear side of said axis.
  • the wheels 12 can be independently power-driven in either direction of rotation or kept stationary by respective electric motors 22 of permanent magnet twenty-four-volt direct current type connected to the wheels by respective wor -and-wormwheel speed reduction gearboxes 24 and powered by two twelve-volt batteries 26
  • the motors 22 provide regenerative braking.
  • the motors 22, gearboxes 24 and batteries 26 are supported by the rear chassis portion 10, and the distance of the batteries to the rear of the axis 14 is variable to enable the balance of the fun-kart to be adjusted.
  • the speed and regenerative braking of the wheels 12 are controlled by a twin-channel controller 28 of the type employed in electric wheel-chairs, which enables the fun-kart to be steered and controlled rapidly and precisely by a single joy-stick 30.
  • a main occupant's seat 32 with a back-rest 34 and a head-restraint 36 is secured at the rear of the front chassis portion 16, and said portion has an integral roll-bar 38 to protect the main occupant if the fun-kart should overturn.
  • the seat 32 is disposed very close to the ground m order to provide stability when cornering.
  • the seat 32 is also disposed ust forward of the axis 14 so that the weight of the main occupant, partially counter-balanced by the batteries 26, normally holds the front castor wheels 18 in contact with the ground.
  • a secondary occupant ' s seat 40 is provided near the front end of the front chassis portion 16 above the castor wheels 18.
  • the disposition of the seat 32 and/or the seat 40 relative to the axis 14 may be variable to assist in adjusting the balance of the fun-kart.
  • the controller 28 is secured to one side of the front chassis portion 16 so that the joy-stick 30 is located within reach of the seats 32 and 40.
  • a pneumatic-tyred wheel freely rotateable about an axis 44 which is substantially vertical when the front castor wheels are in contact with the ground.
  • the wheel 42 is not intended to make any contact with the ground, being provided to deflect the fun-kart safely away from walls and the like, to guide the kart around corners on a track, and to act as a shock-absorbing bumper in the event of a head-on collision.
  • FIG. 4 another specific embodiment of a fun-kart is in most respects similar to the embodiment of Figures 1 and 2, and like parts are identified by the same reference numerals.
  • a one-piece chassis 50 is employed, each of the two castor wheels 18 being mounted on the chassis 50 by independent resilient suspension means shown in Figure 4.
  • One of said means is disposed at each side of the chassis 50 and comprises an arm 52 which is pivoted at its rear end at a point 54 on the chassis 50 and carries one of the castor wheels 18 at its front end, and a telescopic strut 56 which is urged into extended condition by a helical compression spring 58 and is connected between a point 60 on the chassis 50 and an intermediate point 62 on the arm 52.
  • the wheels 12 are controlled by independent speed controllers and associated electronic twist grips 64 best seen m Figure 3 which are located within reach of the seats 32 and 40.
  • the twist grips 64 can control both the direction of rotation and the speed of the motors 22, or alternatively they control only the speed and a manually-operated switch is provided to reverse said motors.
  • a single occupant can use either of the seats 32 and 40, or two occupants can use both of said seats.
  • a single occupant uses the main seat 32, or two occupants include a light-weight person such as a child using the secondary seat 40, and the dispositions of the seats 32 and 40 and the batteries 26 relative to the axis 14 are adjusted as necessary, the torque reaction produced during forwards acceleration of the fun-kart will cause it to perform a so-called "wheely" whereby the front castor wheels 18 lift from the ground and the kart rears up until the rear castor wheels 20 contact the ground as shown in broken lines in Figure 2 so as dramatically to change the longitudinal inclination, and also m the case of the seat 40 the height, of the occupant or occupants relative to the ground.
  • Deceleration will cause the kart to fall back onto its front castor wheels 18. Regardless of whether it is stabilised on its front or rear castor wheels, or even balanced on the wheels 12 alone, the fun-kart can be caused to turn in progressively tighter circles by slowing, stopping or, where suitable provision is made, reversing either one of the motors 22. An occupant of the seat 40 will then experience a feeling of being cent ⁇ fuged. Where suitable provision is made, the fun-kart can also be driven and turned in reverse by appropriate control of the motors 22, but "wheelies" are not then possible. Acceleration, deceleration, turning and reversing can all be controlled from either of the seats 32 and 40, but the controls will of course feel to be reversed for an occupant of seat 40.
  • the fun-kart can be used for leisure or for competitive racing. Numerous modifications are possible within the scope of this invention.
  • the secondary seat 40 can be omitted.
  • the relative positions of the batteries 26 and the main seat 32 can be reversed when the secondary seat 40 is provided, in which case the arrangement of the seats can be such that occupants of both seats can experience a "wheely" and the feeling of being centrifuged.
  • a three-seat configuration can also be provided, with one seat in the middle and one seat at each end.
  • the two electric motors 22 can be replaced by two mternal- combustion engines, especially two-stroke engines which can de ⁇ ireably rotate at very high speeds, together with associated clutch/brake means or by a single electric motor or a single internal-combustion engine in conjunction with suitable means for independently driving and braking the wheels 12.
  • the joy-stick or the twist grips can be replaced by other control means such as a steering wheel, foot pedals, and hand levers.
  • the speed reduction gearboxes can be of other than worm gear type.
  • the fun-kart can be designed so as to be readily dismantled, either to facilitate its transportation or to allow its drive means to operate other attachments.
  • ballast weights can be used to balance the fun-kart for different numbers and weights of occupants.
  • ballast weights can be adjustable in position, and this can be effected by motorised means while the fun-kart is in motion to allow very undulating terrain to be negotiated.
  • the height of the rear castor wheels 20 above the ground when the front castor wheels 18 are m contact with the ground can be adjustable to vary the angle to which the fun-kart rears up when a "wheely" is performed.
  • the rear castor wheels can incorporate resilient suspension means as well as or instead of the front castor wheels. Instead of providing a suspension hinge adjacent to the axis 14, it can be provided adjacent to the front castor wheels 18. If desired, there need be no suspension means at all.
  • a single castor wheel disposed on the longitudinal centre-line of the fun-kart can be employed at the front and/or at the rear, with a corresponding reduction in cornering ability.
  • Stabiliser means in the form of skids can take the place of the front and rear castor wheels when the fun-kart is used on sand, snow or other soft or slippery surfaces.
  • the fun-kart can be small in size for a child, or large and very powerful for more than one adult.
  • a remotely-controlled toy vehicle can employ the same principle of operation as the fun-kart.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Toys (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

L'invention concerne un véhicule destiné aux loisirs ou à la compétition, qui a un châssis (50) soutenant deux roues (12), lesquelles sont placées sur un même axe (14), chacune d'entre elles pouvant être entraînée indépendamment de l'autre par des moteurs électriques correspondants (22) alimentés par batterie ou par des moteurs à combustion interne, ou pouvant être maintenue immobile indépendamment de l'autre. Deux roues pivotantes (18), espacées latéralement, sont placées dans un certain plan sur un côté de l'axe à une certaine distance, et sont montées sur le châssis par des éléments (52, 54, 56, 58, 60 et 62) de suspension élastiques indépendants. Deux roues pivotantes (20), espacées latéralement, sont placées dans un autre plan, qui est incliné par rapport au plan susmentionné, à une distance inférieure à la précédente, sur l'autre côté de l'axe et sont montées directement sur le châssis. Un siège (32), protégé par un arceau de sécurité (38), est disposé à proximité de l'axe et deux commandes (64) de vitesse à poignée tournante, qui correspondent à chacun des moteurs électriques ou à combustion interne, sont placées sur le châssis à portée du siège. Une roue (42) sert simplement de déflecteur. La position du siège et des batteries par rapport à l'axe est conçue de façon qu'il n'y ait pas assez de poids sur les roues pivotantes (18) pour résister au couple exercé sur les roues (12) lors d'une accélération soudaine: en conséquence, le véhicule 'décolle', c'est-à-dire qu'il se redresse jusqu'à ce que les roues pivotantes (20) touchent le sol, comme indiqué par les pointillés. Après décélération, le véhicule retombe sur ses roues pivotantes (18). On peut également faire tourner rapidement ledit véhicule en petits cercles en commandant de manière indépendante et appropriée les moteurs électriques ou à combustion interne. Un modèle réduit dudit véhicule à commande à distance peut fonctionner sur le même principe.
PCT/GB1997/002916 1996-10-26 1997-10-22 Vehicule WO1998018669A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU47159/97A AU732256B2 (en) 1996-10-26 1997-10-22 Vehicle
EP97909484A EP0932543A1 (fr) 1996-10-26 1997-10-22 Vehicule
US09/825,598 US20010014569A1 (en) 1996-10-26 2001-04-04 Fun-kart with two powered wheels

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GBGB9622301.1A GB9622301D0 (en) 1996-10-26 1996-10-26 Fun-kart
GB9622301.1 1996-10-26
GB9716346.3 1997-08-04
GB9716346A GB2318555B (en) 1996-10-26 1997-08-04 Vehicle

Publications (1)

Publication Number Publication Date
WO1998018669A1 true WO1998018669A1 (fr) 1998-05-07

Family

ID=26310290

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1997/002916 WO1998018669A1 (fr) 1996-10-26 1997-10-22 Vehicule

Country Status (3)

Country Link
EP (1) EP0932543A1 (fr)
AU (1) AU732256B2 (fr)
WO (1) WO1998018669A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108096847A (zh) * 2016-11-24 2018-06-01 苍安国 电动玩具车

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3763945A (en) * 1971-07-15 1973-10-09 O Danielson Automotive vehicle
DE3103961A1 (de) * 1981-02-02 1982-09-02 Navid 8700 Würzburg Bastani Hessari Zweiraedriges auto
JPS6177576A (ja) * 1984-09-21 1986-04-21 Toyoda Autom Loom Works Ltd 二輪自動車
WO1989006117A1 (fr) * 1988-01-11 1989-07-13 Anschütz & Co. Gmbh Procede pour stabiliser un vehicule a roues a un seul essieu, et vehicule ainsi stabilise
WO1990006097A1 (fr) * 1988-11-28 1990-06-14 Mercado Medic Ab Fauteuil roulant avec chassis a six roues
US5314034A (en) * 1991-11-14 1994-05-24 Chittal Nandan R Powered monocycle

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE381564B (sv) * 1973-03-19 1975-12-15 Stiftelsen Teknisk Hjelp At Ha Eldriven rullstol
US4484646A (en) * 1982-11-09 1984-11-27 Smith Billy J Recreational vehicle
JPS59105198U (ja) * 1982-12-28 1984-07-14 株式会社マツシロ ラジオコントロ−ルカ−

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3763945A (en) * 1971-07-15 1973-10-09 O Danielson Automotive vehicle
DE3103961A1 (de) * 1981-02-02 1982-09-02 Navid 8700 Würzburg Bastani Hessari Zweiraedriges auto
JPS6177576A (ja) * 1984-09-21 1986-04-21 Toyoda Autom Loom Works Ltd 二輪自動車
WO1989006117A1 (fr) * 1988-01-11 1989-07-13 Anschütz & Co. Gmbh Procede pour stabiliser un vehicule a roues a un seul essieu, et vehicule ainsi stabilise
WO1990006097A1 (fr) * 1988-11-28 1990-06-14 Mercado Medic Ab Fauteuil roulant avec chassis a six roues
US5314034A (en) * 1991-11-14 1994-05-24 Chittal Nandan R Powered monocycle

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 010, no. 249 (M - 511) 27 August 1986 (1986-08-27) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108096847A (zh) * 2016-11-24 2018-06-01 苍安国 电动玩具车

Also Published As

Publication number Publication date
EP0932543A1 (fr) 1999-08-04
AU4715997A (en) 1998-05-22
AU732256B2 (en) 2001-04-12

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