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WO2002060550A1 - Dispositif a propulsion aerienne - Google Patents

Dispositif a propulsion aerienne Download PDF

Info

Publication number
WO2002060550A1
WO2002060550A1 PCT/GB2002/000414 GB0200414W WO02060550A1 WO 2002060550 A1 WO2002060550 A1 WO 2002060550A1 GB 0200414 W GB0200414 W GB 0200414W WO 02060550 A1 WO02060550 A1 WO 02060550A1
Authority
WO
WIPO (PCT)
Prior art keywords
accordance
propelled
drives
propelled object
drive
Prior art date
Application number
PCT/GB2002/000414
Other languages
English (en)
Inventor
Zee Franklin
Original Assignee
Zee Franklin
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 Zee Franklin filed Critical Zee Franklin
Publication of WO2002060550A1 publication Critical patent/WO2002060550A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H7/00—Propulsion directly actuated on air
    • B63H7/02—Propulsion directly actuated on air using propellers
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H23/00—Toy boats; Floating toys; Other aquatic toy devices
    • A63H23/02—Boats; Sailing boats
    • A63H23/04—Self-propelled boats, ships or submarines
    • A63H23/06—Self-propelled boats, ships or submarines jet-propelled

Definitions

  • the invention relates to an air propelled device such as a vehicle with a novel propulsion system.
  • the invention in particular relates to a model-scale floating device, such as a model boat or the like, a floating toy or similar, but is also applicable to the provision of propulsion to larger-scale floating devices, or to other devices adapted for movement essentially in two dimensions over a surface, such as on or hovering immediately above a land or water surface.
  • Propelled floating devices and in particular remotely-controlled propelled floating devices find use in a variety of applications.
  • Such devices might include both full-scale and model-scale boats and similar floating vehicles, floatation aids, floating marker buoys and the like, and remotely-controlled toy boats and other floating toys.
  • model boats and floating toys in particular are frequently operated in shallow water and/or water which has near-surface obstructions (including vegetation and the like) such as is found in ponds etc. in public parks.
  • model boats and other floating toys have operated using scaled down versions of large scale propulsion systems such as might be used in full size boats.
  • the propulsion systems consist of driven screws or possibly jet drives acting below and to the rear of the hull.
  • These conventional drives have limitations, particularly in relation to the special considerations which might apply to models and toys as set out above. They can be relatively unresponsive, and prone to fouling in shallow water and/or water containing obstructions and debris. While such considerations are less frequently a problem with large scale propelled floating objects, they can be particularly limiting on the circumstances in which a model boat or other floating toy can be operated, since they tend to increase the required operational surface area and depth.
  • a propelled object with air propulsion system comprises a body to be propelled over a surface, and at least one pair of air driving means above and towards the rear of said body, wherein the pair of air driving means are laterally disposed generally at either side of a midline of the object, in particular rearward of the static centre of gravity ofthe object and most preferably in the vicinity of a dynamic centre of gravity ofthe object.
  • the pair of air driving means are disposed laterally generally at either side of a mid line of the object, and for stability and optimum manoeuvrability in the vicinity of and preferably substantially at either side of the dynamic centre of gravity as determined with reference to regular forward motion ofthe object in a straight line.
  • each drive preferably comprises a rotary bladed drive, the blades being configured to impart a forward propulsion on rotation thereof.
  • the rotary bladed drive may consist of a single blade, or paired or multiple propeller blades rotating about a central axis.
  • the driving system is particularly advantageous for model boats, floating toys etc.
  • the present invention relies upon providing propulsion mechanisms above rather than below the water line. It has been found that providing propulsion mechanisms at such a location is surprisingly effective in the context of model boats and other floating toys.
  • the driving system is effective in shallow water, and there is no danger of fouling which greatly enhances the number of available venues for safely playing with a model boat or other floating toy.
  • an object according to the invention may be any object such as a vehicle which is adapted for movement over any surface, for example on a generally flat surface such as floating on a water surface, or moving in contact over a land surface (and in particular a low friction surface such as ice, marble or the like), or hovering immediately above a surface.
  • movement is primarily in two dimensions save for undulations, gradients etc. in the surface to be traversed, and the propulsion system is adapted to effect movement in these two general dimensions.
  • the body and in particular a lower part or surface thereof, is adapted for movement over the surface in particular with reduced contact friction.
  • the body may comprise a floating hull.
  • a lower surface of the body may be provided with low- friction ground engagement means, such as wheels, rollers, balls or the like; or with means adapted to engage a low-friction operating surface (such as ice, snow or specially prepared play surface), for example skis, skates, blades or the like; or with some combination thereof.
  • the ground engagement means should preferably be adapted for omni-directional movement, and should preferably not be driven, propulsion being attributable to the air driving means.
  • the base of the body may be provided with means to generate a cushion of air, for example in the form of air jets or contained in one or more inflatable air bags or like containment means to effect such hovering motion.
  • the driving system of the invention is particularly suited but not restricted to use with model-scale objects, such as models and toys, and in particular remotely-controlled model and toy vehicles.
  • the object is wireless remotely controlled, for example radio controlled.
  • an object comprises a receiver and aerial as known in the art of radio controlled technology, the aerial being located or suspended from any suitable point on the object so as not to impede the object or any component part thereof and being suitably configured to receive the desired transmitted control signal without undue interference.
  • the object may be a wire controlled object, suitably comprising attachment points for wires for the transmission of signals to the object from appropriate control means.
  • references herein to the object, and in particular to the body forming the base thereof, are characterised herein by references to symmetry and to direction of travel, but these are for guidance purposes only.
  • the object will have general symmetry about a fore and aft mid line, but it will be appreciated that this is not an absolute requirement for the successful working of the principles of the invention, and references to a midline include a general mass-determined longitudinal midline even where there is no such symmetry.
  • references to front, back, fore, aft etc. being construed accordingly.
  • the object is highly manoeuvrable and can not only be turned in a tight circle but also made to travel in a reverse direction.
  • the air driving means comprises a rotary bladed drive designed to impart a driving motion on rotation.
  • the rotary bladed drive preferably consists of one to four evenly spaced blades, and in particular three blades, configured to rotate about a central axis.
  • the blades are configured to impart a forward propulsion to the object on rotation thereof in a first rotational sense.
  • the blades are further adapted such that rotation in a contrary rotational sense will impart rearward motion.
  • the blades are preferably configured such that the rotary bladed drives serve as push propellers when motion is forward (i.e. in the preferred direction of motion).
  • the propellers will then be rearwardly facing and to minimise air resistance will preferably be mounted behind any rotary drive mechanism or housing thereof which provides the rotary power to the propellers.
  • Optimum manoeuvrability of the drive system arises in that a pair of air drive means and in particular rotary blade drive means is provided with one generally either side of a mid line of the object at or in the vicinity of the dynamic centre of gravity. It will be appreciated that the dynamic centre of gravity is not fixed, but will shift depending on the forward velocity of the object, and on whether motion is in a straight line. For optimum performance, the paired drives are positioned with reference to the dynamic centre of gravity under optimum conditions for straight- line forward motion.
  • the drives should be located between the static centre of gravity and the rear of the base, and in particular substantially half way therebetween. For many practical applications, this will mean that the drives will be located less than one base width forward of the rear of the base, and in particularly substantially half ofthe base width forward therefrom.
  • the drives will preferably be located laterally spaced equidistantly from a mid line of the base, in a plane perpendicular to the midline, and at a separation to minimise energy loss as the air flow generated by each drive combines.
  • the height ofthe drives above the base will be determined by the need to raise the drives high enough to avoid interference between the air stream created by the drives and the rear of the base, but at the same time to avoid raising the drives so high that stability ofthe whole object is seriously impaired.
  • the drives will preferably be located at the same height as each other. For practical purposes, the drives will be located at a height above the base generally similar to their distance forward from the rear thereof.
  • the paired drives are preferably identical, and for forward motion at maximum speed, both drives are preferably adapted to be operated together at substantially equal power in the manner which imparts forward motion to the object.
  • both drives are rotary bladed drives
  • a pair of substantially identical bladed drives are rotated simultaneously each in the appropriate rotational sense at substantially the same speed to impart forward motion.
  • both drives are rotated in the contrary rotational sense.
  • the drives are operated at differential power.
  • the two rotary drives are operated at different speeds of rotation, and in particular only one of the drives is operated.
  • the right hand drive is caused to rotate in the appropriate rotational sense to impart forward motion solely or more rapidly than the left as the case may be with the position being reversed to follow a curved path in the other direction.
  • Locating the drives generally about the dynamic centre of gravity confers even greater manoeuvrability. Very rapid reversing of direction is made possible by reversing rotation of the drives. Sharp turns and even spin turns are possible by appropriate co-ordinated control of the drives.
  • the manoeuvrability conferred in accordance with the foregoing is particularly effective in allowing close and dramatic control of the object.
  • the object can be spun in a very tight circle, can be rapidly caused to move in a reverse direction, and can be made to perform a range of very tight manoeuvres exploiting these features.
  • Such dramatic movements increase the entertainment value which might be obtained where the object in question is a model vehicle, model boat or floating toy or the like or a lightweight leisure vehicle or similar, and greatly reduce the area needed for effective play.
  • Such manoeuvrability might also be useful in certain operational situations, for example to avoid collision.
  • the invention lends itself to providing a drive for a model boat or other floating toy which can be operated on a very small area of water or to providing a highly manoeuvrable drive for a lightweight leisure craft.
  • the same effects could not be achieved with conventional rotational bladed drives acting below the water line on the water in conventional manner, given the different inertial considerations that would apply.
  • the invention is an air propelled model boat, floating toy or the like comprising a propulsion system as above described, wherein the base comprises a floating hull with a lower surface adapted to travel across the water surface, and with the propulsion system engaged on and towards the rear of an upper surface thereof.
  • the base is multiple hulled.
  • the use of a multiple hulled system gives stability to the floating object which might otherwise be lost given the unusual location of the propulsion drive.
  • a catamaran is particularly preferred.
  • at least one pair of rotary bladed drives is provided, respectively located generally above each hull ofthe catamaran.
  • a pair of such means are provided, each comprising one or more generally vertical adjustable vanes, again at either side ofthe mid line.
  • these are preferably located generally in the vicinity ofthe drive means, for example integrally with a housing thereof. It is a particular advantage of such an arrangement if the trimming vanes associated with each drive means are separately adjustable. Whilst in the preferred embodiment for simplicity of operation it is envisaged that each drive will operate at the same power level, some small variation is likely to be inevitable. Permitting separate adjustment of the trimming means enables this to be accommodated.
  • the rotary bladed drive means are mounted to be driven for rotation on any suitable rotary drives, such as electric motors.
  • the blade means are mounted rearwardly of such motors with reference to a preferred direction of operation, to minimise air resistance when operation is in the preferred direction.
  • an ogival nose portion is fitted rearwardly over the central axis of each rotary bladed drive which is generally ofthe same transverse cross section as the drive motor or any housing thereof.
  • Control of the relative power imparted by the two drives is regulated by means of control circuitry associated with the object, for example contained within the base.
  • the control circuitry may take the form of a circuit board constructed using conventional techniques.
  • a power source is preferably provided in association with the object, for example within the base.
  • the power source is preferably an electrical power source adapted to drive rotary electrical motors to provide driven power for the rotary bladed air propulsion means.
  • the electrical power source is preferably a battery power source which may be a re-chargeable battery power source. For applications on a larger scale and/or under wire control other power sources may be practical.
  • a first primary power source purely drives electric rotary motors for operation of the rotary propulsion drives.
  • a secondary, lower- voltage power source operates the control circuitry, and any receiving circuitry for receiving control signals in the case of wireless controlled objects such as radio controlled objects. This allows driving power to the electric motors, and hence to the rotary bladed drives, to be maximised without fear that power surges or overloading could have an adverse effect on the control circuitry (for example causing burnout).
  • a sole or primary power source is a high-power re-chargeable battery source, for example operating at between 4.8 and 9.2 volts, and in particular at 7.2 volts, and for example comprising nickel-cadmium or nickel- metal-hydride cells.
  • the secondary power source where provided operates for example at 3-4.5 volts, and may be a longer-life battery source such as a conventional alkaline battery source.
  • the primary power source drives only the motors for the rotary bladed propulsion drives
  • the secondary power source not only operates the control circuitry but also serves as a backup to provide a minimal propulsive power to the motors in the event that the primary power source fails.
  • the base ofthe object is provided with at least one pair of generally horizontal blades extending laterally outwards at either side towards the rear. These blades provide a degree of lift to the rear of the base when the object is travelling forwards at speed to compensate for the tendency of the nose to lift.
  • the blades are in the form of delta- fins, for example having a broadest portion extending laterally out in the vicinity of the stern, and tapering in to a forward point, preferably around the line ofthe static centre of gravity.
  • the blades perform a second purpose where the base as a hull designed for floating on water, in that they also constitute stabilising fins to counteract excessive roll, and also assist in righting the hull if it tilts excessively in a sharp turn, since a degree of lift to counter the tilt will be given when the blade touches the water.
  • a polyhedral blade structure will be preferred, with the fin-tips angled above the horizontal.
  • Each rotary bladed drive is preferably partially surrounded by a semi-arcuate enclosing strip extending from the base around the rotary blade towards the mid line and generally co-planar therewith to provide a degree of protection from side winds.
  • the invention is particularly applicable to objects adapted for remote control, and in particular, for wireless remote control.
  • the object is controlled by a two-function controller but a multi- function controller may be appropriate for some uses.
  • the object for example in the base thereof, comprises a receiver for receiving signals from a transmitter in a controller.
  • a remotely controllable air propelled device and control system comprises a device as above described, with a remote control system, and in particular a wireless remote control system such as a radio transmitter.
  • the controller is preferably a two-function controller or alternatively a multi-function controller as above described, and preferably includes an audible or visual warning which is adapted to activate to indicate certain operational states. For example, this may indicate that the vehicle is operational and may indicate power loss etc.
  • Figure 1 is a perspective view from in front of a toy boat in accordance with the invention
  • Figure 2 is a perspective view from behind ofthe embodiment of Figure 1.
  • a boat (1) has a catamaran base comprising twin hulls
  • the boat is adapted for remote control via the antenna (3) using suitable control means (not shown).
  • Control circuitry (not shown) and power sources (not shown) are contained within the compartment (5). Twin power sources are used. A 4.5 volt alkaline battery source powers the control circuitry. A 7.2 volt re-chargeable nickel- metal-hydride power source provides the main motive power to rotary electric motors which drive the propellers. However, the control circuit is set up such that in the event of failure of the re-chargeable power source, limited motive power can be provided by the control power source to enable the boat to be recovered. Propulsion is provided by a pair of 3 -bladed propellers (7a, 7b) located at either side of the mid line of the boat towards the rear (4) of the base. Each propeller is protected by a semi-arcuate sleeve (9). The propellers (7a, 7b) are driven by rotary electric motors (11) mounted at an appropriate height by supports (12) on to the base.
  • the blades of the propellers (7a, 7b) are suitably configured to impart a forward motion when both are rotated in a clockwise direction (and consequently a rearward motion when both are rotated in an anti-clockwise direction). Since this will tend also to impart some sideways impulse to the hull, a pair of trimming vanes (15) are associated with each motor housing, the vanes consisting of generally vertical blades which can be adjusted to counteract this.
  • the blades (15) are also individually adjustable so that they can also accommodate variations in effective power between the two propellers (7a, 7b). Although it is intended that the propellers are equivalent, some variation in the performance of the two electric motors is inevitable, particularly as the voltage profile of the main power source varies during discharge. Whilst it would be possible to accommodate this electronically, the blades (15) provide a much simpler mechanical means of compensating.
  • Delta Fins (17) extend out from either side towards the stern to give lift to counteract nose lift at forward speed. They also have a righting effect if they touch the water during excessive tilting in tight rums.
  • the fins (17) are planar, but could be polyhedral to enhance the latter effect.
  • the boat is designed for seven modes of operation, which can all be controlled by a simple two lever four position controller.
  • the blades are configured so that the propellers act as push propellers for forward motion on clockwise rotation. Both propellers are simultaneously rotated clockwise for forward straight line motion. Anticlockwise rotation of both propellers produces a rapid shift to rearward straight line motion. Forward operation of the starboard propeller only produces forward motion veering to port and vice versa. Simultaneous forward operation of one propeller and rearward operation of its pair causes to boat to turn in a very tightly controlled circle. The possibilities for dramatic controlled movement greatly enhance playability, and greatly reduce the area needed for effective play.

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  • Engineering & Computer Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Toys (AREA)

Abstract

La présente invention concerne un objet (1) à propulsion, et notamment un bateau ou un jouet flottant, ayant un système de propulsion aérienne avec au moins une paire de moyens de conduite aérienne (7a, 7b) (11) au-dessus et vers l'arrière de son corps, disposée latéralement de manière générale de part et d'autre d'une ligne médiane de l'objet vers l'arrière du centre de gravité statique de l'objet dans le voisinage du centre de gravité dynamique de l'objet. Idéalement chaque transmission est une transmission de pale rotative, les pales étant conformées à imprimer une propulsion vers l'avant lors de leur rotation.
PCT/GB2002/000414 2001-01-31 2002-01-30 Dispositif a propulsion aerienne WO2002060550A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0102427A GB0102427D0 (en) 2001-01-31 2001-01-31 Air propelled device
GB0102427.2 2001-01-31

Publications (1)

Publication Number Publication Date
WO2002060550A1 true WO2002060550A1 (fr) 2002-08-08

Family

ID=9907850

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2002/000414 WO2002060550A1 (fr) 2001-01-31 2002-01-30 Dispositif a propulsion aerienne

Country Status (2)

Country Link
GB (1) GB0102427D0 (fr)
WO (1) WO2002060550A1 (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2484649A (en) * 2009-06-12 2012-04-25 Wynand Van Rensburg Model air-boat
CN104512541A (zh) * 2013-09-26 2015-04-15 株式会社塔卡奇塔 散布用船舶
CN105561593A (zh) * 2015-12-22 2016-05-11 广东信宇科技实业有限公司 一种水陆两栖玩具车
EP3031504A1 (fr) 2014-12-11 2016-06-15 Parrot Mobile glissant, notamment hydrofoil, à propulsion par un drone à voilure tournante
US9868431B1 (en) 2017-05-05 2018-01-16 Spin Master Ltd. Drone and separate vehicle body that are assemblable to form vehicle such as hovercraft
WO2018032866A1 (fr) * 2016-08-19 2018-02-22 抚顺抚运安仪救生装备有限公司 Hydroglisseur à double hélice et deux moteurs
CN108159712A (zh) * 2017-12-27 2018-06-15 温州大学激光与光电智能制造研究院 一种可穿式气垫玩具
USD823402S1 (en) 2017-05-12 2018-07-17 Spin Master Ltd. Model vehicle body
USD827050S1 (en) 2017-05-12 2018-08-28 Spin Master Ltd. Model vehicle
USD831754S1 (en) 2017-05-12 2018-10-23 Spin Master Ltd. Model vehicle body
CN109866751A (zh) * 2017-12-04 2019-06-11 田翔 气动船及气动船系统
USD857806S1 (en) 2017-05-12 2019-08-27 Spin Master Ltd. Model vehicle
USD858653S1 (en) 2017-05-12 2019-09-03 Spin Master Ltd. Model vehicle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2253661A1 (en) * 1973-12-10 1975-07-04 Clement Michel Light ground effect craft - has aircraft engine in trough shape housing producing a venturi effect
EP0345406A1 (fr) * 1988-06-06 1989-12-13 GIELENS, Jan Canot automobile avec deux ailes sustentatrices
EP0380871A1 (fr) * 1989-01-31 1990-08-08 Taiyo Kogyo Co., Ltd. Véhicule-jouet à coussin d'air
GB2274633A (en) * 1993-02-02 1994-08-03 John Peter Rayner Muscle-powered boat

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2253661A1 (en) * 1973-12-10 1975-07-04 Clement Michel Light ground effect craft - has aircraft engine in trough shape housing producing a venturi effect
EP0345406A1 (fr) * 1988-06-06 1989-12-13 GIELENS, Jan Canot automobile avec deux ailes sustentatrices
EP0380871A1 (fr) * 1989-01-31 1990-08-08 Taiyo Kogyo Co., Ltd. Véhicule-jouet à coussin d'air
GB2274633A (en) * 1993-02-02 1994-08-03 John Peter Rayner Muscle-powered boat

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2484649A (en) * 2009-06-12 2012-04-25 Wynand Van Rensburg Model air-boat
CN104512541A (zh) * 2013-09-26 2015-04-15 株式会社塔卡奇塔 散布用船舶
EP3031504A1 (fr) 2014-12-11 2016-06-15 Parrot Mobile glissant, notamment hydrofoil, à propulsion par un drone à voilure tournante
FR3029798A1 (fr) * 2014-12-11 2016-06-17 Parrot Mobile glissant, notamment hydrofoil, a propulsion par un drone a voilure tournante
CN105561593A (zh) * 2015-12-22 2016-05-11 广东信宇科技实业有限公司 一种水陆两栖玩具车
CN105561593B (zh) * 2015-12-22 2018-08-24 广东信宇科技股份有限公司 一种水陆两栖玩具车
WO2018032866A1 (fr) * 2016-08-19 2018-02-22 抚顺抚运安仪救生装备有限公司 Hydroglisseur à double hélice et deux moteurs
US10011259B1 (en) 2017-05-05 2018-07-03 Spin Master Ltd. Drone and separate vehicle body that are assemblable to form vehicle such as hovercraft
US9868431B1 (en) 2017-05-05 2018-01-16 Spin Master Ltd. Drone and separate vehicle body that are assemblable to form vehicle such as hovercraft
USD823402S1 (en) 2017-05-12 2018-07-17 Spin Master Ltd. Model vehicle body
USD827050S1 (en) 2017-05-12 2018-08-28 Spin Master Ltd. Model vehicle
USD831754S1 (en) 2017-05-12 2018-10-23 Spin Master Ltd. Model vehicle body
USD857806S1 (en) 2017-05-12 2019-08-27 Spin Master Ltd. Model vehicle
USD858653S1 (en) 2017-05-12 2019-09-03 Spin Master Ltd. Model vehicle
CN109866751A (zh) * 2017-12-04 2019-06-11 田翔 气动船及气动船系统
CN109866751B (zh) * 2017-12-04 2023-09-19 田翔 气动船及气动船系统
CN108159712A (zh) * 2017-12-27 2018-06-15 温州大学激光与光电智能制造研究院 一种可穿式气垫玩具

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