EP1420999A1 - System for controlling a moving part, steering system for a light vehicle and tricycle fitted with said system - Google Patents

System for controlling a moving part, steering system for a light vehicle and tricycle fitted with said system

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Publication number
EP1420999A1
EP1420999A1 EP02762531A EP02762531A EP1420999A1 EP 1420999 A1 EP1420999 A1 EP 1420999A1 EP 02762531 A EP02762531 A EP 02762531A EP 02762531 A EP02762531 A EP 02762531A EP 1420999 A1 EP1420999 A1 EP 1420999A1
Authority
EP
European Patent Office
Prior art keywords
tricycle
cable
fixed
lateral
cables
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP02762531A
Other languages
German (de)
French (fr)
Inventor
Rodolphe Brichet
Olivier Bonneau
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sport System Engineering Sas
Original Assignee
Sport System Engineering Sas
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 Sport System Engineering Sas filed Critical Sport System Engineering Sas
Publication of EP1420999A1 publication Critical patent/EP1420999A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B62K5/00—Cycles with handlebars, equipped with three or more main road wheels
    • B62K5/02—Tricycles
    • B62K5/05—Tricycles characterised by a single rear wheel
    • 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
    • B62K21/00—Steering devices
    • 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
    • B62K21/00—Steering devices
    • B62K21/12—Handlebars; Handlebar stems
    • 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
    • B62K3/005—Recumbent-type bicycles
    • 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
    • B62M1/00—Rider propulsion of wheeled vehicles
    • B62M1/12—Rider propulsion of wheeled vehicles operated by both hand and foot power

Definitions

  • the invention relates to a cable control system which can be used on a directional system for a light vehicle (tricycle, quadricycle, bicycle, nautical, snow) or on a behavioral control system for a fixed product (indoor sport, medical rehabilitation, recreational products. statics for leisure park).
  • a drive shaft is disposed on a chassis and is rotated by two drive cranks disposed at the ends thereof.
  • Two pedals mounted on the control cranks on either side of the ends of the shaft allow the driver to operate them in phase.
  • Two bars of control, or propulsion arms, are pivotally mounted on the tricycle floor, on each side of the seat, so that they can be moved by hand at the same time, back and forth and back and forth, in opposition to phase relative to the pedals.
  • Two connecting rods arranged on each side of the pedals and fixed, on the one hand, to these pedals by a first end and, on the other hand, to the control bars by a second end, make it possible to transmit the alternating forces of the control bars to drive wheels, via a large turntable, around which is wound a chain actuating the drive wheel shaft.
  • the steering control with which the tricycle is fitted is effected by the combined lateral offset of the two control bars. This affects the reliability of these control bars and goes against ergonomics. In addition, the simultaneous actuation of these control rods for propulsion, while shifting them to steer the tricycle, is somewhat difficult, especially when considering turns with a reduced radius of curvature.
  • the main object of the invention is therefore to propose another directional system usable on a tricycle overcoming, among other things, these drawbacks.
  • a first object of the invention is a cable control system for a moving part of a device consisting of two separate pivoting levers, each secured to the first end of a first cable, the second ends of each of the first two cables being fixed each on either side of the steering shaft, to control the orientation of the moving part by pivoting a lateral lever, in order to cause the traction of the corresponding cable among the first two cables and get the movement of the moving part.
  • it comprises a second cable, a first end of which is fixed to a first lateral lever, opposite to the first end of the first corresponding cable, and the second end of which is fixed to the second lateral lever, opposite to the first end of the corresponding first cable.
  • a second object is a directional system for a vehicle having: - at least one steering wheel mounted to rotate about an axis perpendicular to a steering shaft; two separate pivoting side levers each secured to the first end of a first cable, the second ends of each of the first two cables being each fixed on either side of the steering shaft, to control the orientation of the steerable wheel by pivoting a lateral lever, in order to cause the traction of the corresponding cable from the first two cables and obtain the rotation of the steering shaft.
  • the invention comprises a second cable, a first end of which is fixed to a first lateral lever, opposite to the first end of the first corresponding cable, and the second end of which is fixed to the second lateral lever, opposite to the first end of the first corresponding cable.
  • a second cable is used having a first end secured to a first side handle, oppositely to the first end of the corresponding first cable and the second end is fixed to the second side handle opposite the first end of the first corresponding cable.
  • Another main object according to the invention is a tricycle using the system mentioned above, the two lateral levers being mounted on either side of the tricycle, each pivoting around of a substantially horizontal axis and each placed at the upper end of a lateral propulsion arm, itself mounted to pivot about a substantially horizontal axis to oscillate in phase each on one side along the body of a driver.
  • the device for transmitting the forces supplied by the driver by his legs and arms to the drive wheels is relatively complicated.
  • the force transmission system supplied to the control arms and pedals is central, that is to say that the chainring and the transmission chain are placed between the driver's legs. This was considered in the context of a competition tricycle, but should be avoided in the context of marketing for the general public, especially for children, for safety reasons. Indeed, it is very easy to take a finger, a hand, or even the foot in the central transmission system, and, as a result, to injure or deteriorate the system.
  • the tricycle drive arms are coupled to be actuated simultaneously and in the same direction to help propel the tricycle, by operating a system of connecting rod / crank subject to at least one Driving wheel.
  • the tricycle then has a single traction pedal placed in the axis of the tricycle, in front of the driver's seat, on a crankshaft engine axis, in order to drive the at least one driving wheel of the tricycle.
  • the engine crankshaft is the axis of the at least one drive wheel.
  • the engine crankshaft drives a first toothed wheel, itself driving a second toothed wheel secured to the axis of the drive wheels, by means of a drive chain.
  • the wheels are provided in a lenticular shape.
  • FIG. 1 the tricycle according to the invention
  • FIG. 2 the diagram of the principle of the directional system according to the invention
  • Figure 3 a joystick used __ in this directional system according to the invention
  • - Figure 4 an alternative embodiment of the tricycle according to the invention. Description of two embodiments of the invention
  • control system according to the invention is described in its application to a tricycle.
  • Figure 1 shows a side view of a tricycle according to the invention, that is to say being equipped with a directional system according to the invention.
  • a chassis 1 On the chassis 1 is mounted a seat, at the level of the rear directional wheel 3.
  • the propulsion of the tricycle is obtained by the combined efforts of a driver placed on the seat 4, pedaling on a single propulsion pedal 5 and actuating two lateral propulsion arms 6. Since the propulsion pedal 5 is central and unique, the driver's feet and legs therefore produce a combined movement. It is the same for the driver's arms, since the propulsion arms 6 of the tricycle are coupled synchronously and in phase. This type of propulsion is a bit like that of the cyclo-rower.
  • the propulsion pedal 5 is mounted on a crankshaft-shaped engine shaft 7, directly driving the drive wheel 2.
  • the two lateral propulsion arms 6 are pivotally mounted around a fixed horizontal axis of the chassis 1 and connected to the drive wheels 2 by means of a connecting rod 16.
  • the steering towards the tricycle according to the invention is carried out by two levers 8 pivotally mounted each at the end of a lateral propulsion arm 6.
  • the driver can, by acting on the levers 8, steer the tricycle on which it is installed.
  • These levers 8 can also be equipped with additional controls, such as the brake controls, a gear change, with or without indexing, or an audible warning.
  • the different movements of the levers 8, controlling the direction of the tricycle, are transmitted to the directional rear wheel 3 by two first cables symbolized by their respective sheaths 10 and each of which is fixed by a first end to one of the two levers 8 and whose the other end is fixed to a steering shaft 9 on which the rear steering wheel 3 is rotatably mounted.
  • This steering shaft 9 is mounted substantially vertical on the chassis so as to be able to rotate and pivot the rear steering wheel 3.
  • the propulsion system with a single central pedal 5 frees up the space at the crotch of the driver. In addition, it allows it to be fitted with any type of shoe. Indeed, in the device described in patent FR-2,651,742, the proximity of the control cranks at the level of the pedals required the use of safety shoes. In addition, the pedal 5 is significantly more spacious and will allow the attachment of specific systems to medical rehabilitation products, in particular for the attachment of the feet of the user, and even attachments of the racing bike type.
  • FIG. 2 therefore represents the block diagram of the directional system according to the invention.
  • the two levers 8 placed at the ends of the two propulsion arms 6, both lateral and secured to each other.
  • three cables are shown, including two first cables 12D and 12G and a second cable 13.
  • three pulleys 14D, 14G and 15 complete this system.
  • the two levers 8B, 8G are each secured to one of the first two pulleys, respectively 14D and 14G.
  • the first right cable 12D has its first end fixed to the first right pulley 14D and its second end fixed to the second pulley 15.
  • the first left cable 12G has its first end fixed to the first left pulley 14G and its second end fixed to the second pulley 15, opposite the end of the first right cable 12D which is hooked there.
  • first two cables 12D and 12G are fixed on their respective pulleys 14D and 14G in opposite directions.
  • one of the two pulleys 14D or 14G will pull the first cable 12D or 12G which is fixed to it and which will force the second pulley 15 to rotate in the direction of traction of this first cable thus actuated.
  • the other first cable which will not be pulled will not exert any action on the second pulley 15.
  • the first cable 12D or 12G which would have carried out a traction in the case of the orientation of one of the two levers 8D and 8G in the opposite direction will not be pulled nor put in traction. It is the other cable which will be and which will itself exert traction on the second pulley 15, in the opposite direction to the direction in which the other first cable exerts traction if the levers 8D and 8G are increased in the direction opposite. It is easy to understand that the second pulley 15 can then be oriented in one direction or another by the simple simultaneous actuation of the two levers 8D and 8G. Recall that this second pulley 15 is integral with the steering shaft 9 of Figure 1 and acts on the rear wheel 3 which is directional.
  • a very important characteristic of the invention is constituted by the presence of a second cable 13 which connects the first two pulleys 14D and 14G and this opposite to the point of attachment of the first two cables 12D and 12G on these first pulleys 14D and 14G.
  • the two controllers 8D and 8G are connected directly to each other. This has the effect of making the operator feel, by a first of the two joysticks 8D and 8G the traction exerted on the second joystick, when the latter is actuated so as to bring in its first cable 12G and 12D in traction.
  • the user of this system can very well use only one of the two handles 8D and 8G to turn the second pulley 15, while maintaining the parallelism between the two levers 8D and 8G.
  • this characteristic facilitates the coordination of the movements of the operator, when using this system for guiding a tricycle or a light vehicle.
  • Another advantage of coordinating the movements of the two joysticks 8D and 8C is to avoid making excessive pull-ups appear in the first two cables 12B and 12G, when the simultaneous movements of the two joysticks 8D and 8G are not identical. Thus, premature wear of the first two cables 12B and 12G can be avoided. It is specified that it is possible to provide different diameters for the second pulley 15 relative to those of the first two pulleys 14D and 14G, so as to show a direction ratio between the amplitude of the pivoting of the two levers 8D and 8G .and that of the pivoting of the steering shaft to which the second pulley is secured 15.
  • first pulleys 14D and 14G have a diameter of 60 mm and the second pulley 15 has a diameter of 45 mm, a ratio * direction appears. This allows the second pulley 15 to be rotated by 120 ° when the two levers 8D and 8G are only rotated by 90 °. This offers great maneuverability for vehicles fitted with this steering system.
  • a single lever 8 has been shown. It is pivotally mounted around an axis of rotation 18 fixed relative to the lateral propulsion arms 6. Two flanges 17 are used for this purpose rigidly fixed to the end of a lateral propulsion arm 6. This assembly is carried out by means of the first corresponding pulley 14, to which the lever is rigidly fixed. We can even provide that these two elements are made in one piece.
  • On the pulley 14 are fixed one end 22 of one of the first two cables 12 and, opposite, one end 23 of the second cable 13. It is noted that the first cable 12 and the second cable 13 may each be surrounded by a sheath 10, the end of which abuts on a sheath stop 19 integral with the two flanges 17 and the propulsion arm 6 lateral. The fixing of these cables 12 and 13 on the pulley 14 can be done by means of injected end pieces.
  • a rubber bellows can advantageously protect the assembly, thus integrating the normative and safety aspect against trapping of the operator's fingers.
  • levers 8 are equipped with additional controls for actuating the brakes, a gear change with or without indexing and possibly an audible warning.
  • Such an engine crankshaft drives a first toothed wheel 32, itself driving a transmission chain 33.
  • the latter is wound on a second toothed wheel 34 secured to the axle 35 of the two, or the, drive wheels 2
  • the first toothed wheel 32 is a multifunction member since it also makes it possible to receive the connecting rod 36 pivotally mounted on one of the propulsion arms 6, the engine crankshaft 31 and the first toothed wheel 32 being, in this case, at beyond the driving wheels 2 by report to the driver's seat. This eliminates any risk of the hand being trapped in the transmission and movement coordination system, in particular at the connecting rod 36.
  • the transmission chain 33 could be replaced by a belt or any other transmission means, the two toothed wheels 32 and 34 then replaced by the belt wheels.
  • the drive wheels 2 have been shown with a lenticular shape. This makes it possible to prevent a hand or fingers from being caught between its driving wheels 2 and the propulsion rod 16 or 36, because the lenticular shape will tend so that these fingers or this hand will only slide on the flange of this lenticular form.
  • a judicious phase shift of the dead centers of each movement then makes it possible to optimize the complete performance of the device.
  • the tricycle according to the invention can have its steering wheel both at the front and at the rear. Likewise, it is also possible to envisage a single drive wheel and two directional wheels. It should be noted that this type of propulsion can also be adapted on other vehicles, not only quadricycles and bicycles, but also on vehicles having to operate on water, snow or ice.
  • the control system can also be fitted to other fixed devices, such as physical training devices, installed in gymnasiums for practicing indoor sport. It is also envisaged to adapt the control system according to the invention on behavioral control and medical rehabilitation devices. Finally, static play facilities can also benefit from such a control system, in particular in amusement park facilities intended for children. In these latter cases, the system according to the invention is generalized to a system for controlling a moving part of any device of the installation.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Automatic Cycles, And Cycles In General (AREA)
  • Steering Devices For Bicycles And Motorcycles (AREA)
  • Mechanical Control Devices (AREA)

Abstract

The inventive steering system enables coordination of the movements of two steering levers of a device, such as a tricycle-type light vehicle which is propelled by a pedal (5) and arms (6). The steering system comprises two levers (8), which are pivotably mounted on the end of each propulsion arm (6), and a first cable (10) is fixed on the base thereof. The second end is fixed to the steering shaft (9) of the tricycle. The two levers are interconnected by means of a second cable in order to coordinate the movement of said levers (8). The invention can be used for tricycles which are used for leisure purposes, for light vehicles in general, for indoor sports devices, medical therapy devices and static leisure devices in theme parks.

Description

SYSTEME DE COMMANDE D'UNE PIECE MOBILE, CONTROL SYSTEM FOR A MOBILE PART,
SYSTEME DIRECTIONNEL POUR VEHICULE LEGERSTEERING SYSTEM FOR LIGHT VEHICLE
ET TRICYCLE EQUIPE D'UN TEL SYSTEMEAND TRICYCLE EQUIPPED WITH SUCH A SYSTEM
DESCRIPTIONDESCRIPTION
Domaine de l'inventionField of the invention
L' invention concerne un système de commande par câble pouvant servir sur un système directionnel pour véhicule léger (tricycle, quadricycle, bicycle, nautique, neige) ou sur un système de maîtrise comportementale de produit fixe (sport en salle, rééducation médicale, produits ludiques statiques pour parc de loisirs) .The invention relates to a cable control system which can be used on a directional system for a light vehicle (tricycle, quadricycle, bicycle, nautical, snow) or on a behavioral control system for a fixed product (indoor sport, medical rehabilitation, recreational products. statics for leisure park).
Art antérieur et problème poséPrior art and problem posed
Par le brevet français n° 2 659 742, attribué au même déposant, on connaît un tricycle équipé d'un système de propulsion pour l'obtention d'un mouvement rotatif par action conjugué des mains et des jambes d'un conducteur. Le tricycle décrit dans ce document comprend un siège disposé au milieu de celui-ci, sur lequel se place le conducteur en position semi-couchée.By French Patent No. 2,659,742, attributed to the same applicant, there is known a tricycle equipped with a propulsion system for obtaining a rotary movement by the combined action of the hands and legs of a driver. The tricycle described in this document comprises a seat arranged in the middle of it, on which the driver places himself in the semi-recumbent position.
Un arbre moteur est disposé sur un châssis et est entraîné en rotation par deux manivelles d'entraînement disposées aux extrémités de celui-ci. Deux pédales montées sur les manivelles de commande, de part et d'autre des extrémités de l'arbre permettent au conducteur de les actionner en phase. Deux barres de commande, ou bras de propulsion, sont montés pivotants sur le plancher du tricycle, de chaque côté du siège, de façon à pouvoir être déplacées à la main en même temps, d'avant en arrière et d'arrière en avant, en opposition de phase par rapport aux pédales. Deux bielles disposées de chaque côté des pédales et fixées, d'une part, sur ces pédales par une première extrémité et, d'autre part, aux barres de commande par une deuxième extrémité, permettent de transmettre les efforts alternés des barres de commande aux roues motrices, par l'intermédiaire d'un grand plateau tournant, autour duquel est enroulée une chaîne actionnant l'arbre des roues motrices.A drive shaft is disposed on a chassis and is rotated by two drive cranks disposed at the ends thereof. Two pedals mounted on the control cranks on either side of the ends of the shaft allow the driver to operate them in phase. Two bars of control, or propulsion arms, are pivotally mounted on the tricycle floor, on each side of the seat, so that they can be moved by hand at the same time, back and forth and back and forth, in opposition to phase relative to the pedals. Two connecting rods arranged on each side of the pedals and fixed, on the one hand, to these pedals by a first end and, on the other hand, to the control bars by a second end, make it possible to transmit the alternating forces of the control bars to drive wheels, via a large turntable, around which is wound a chain actuating the drive wheel shaft.
La commande de direction dont est équipé le tricycle s'effectue par le décalage latéral conjugué des deux barres de commande. Ceci nuit à la fiabilité de ces barres de commande et va à l' encontre de l'ergonomie. De plus, l' actionnement simultané de ces barres de commande pour la propulsion, tout en les décalant pour diriger le tricycle, est quelque peu difficile, surtout/ si l'on envisage des virages avec un rayon de courbure réduit.The steering control with which the tricycle is fitted is effected by the combined lateral offset of the two control bars. This affects the reliability of these control bars and goes against ergonomics. In addition, the simultaneous actuation of these control rods for propulsion, while shifting them to steer the tricycle, is somewhat difficult, especially when considering turns with a reduced radius of curvature.
D'autre part, on connaît par le document de brevet américain US-5 775 708 de HEATH STEVEN C. un véhicule d'entraînement équipé d'un système de commande par câbles. L'engin est un vélo d'entraînement sur lequel l'utilisateur se trouve debout. Le guidon est donc surélevé et constitué de deux manettes latérales terminées par des poignées. Chacune de ces dernières est mobile en direction et est reliée au système de direction par un câble. Ainsi, la roue avant du véhicule peut être commandée en direction par les mains de l'utilisateur, pendant que celui-ci effectue des manœuvres de pédalage.On the other hand, from the US patent document US Pat. No. 5,775,708 of HEATH STEVEN C. is known a training vehicle equipped with a cable control system. The machine is a training bike on which the user is standing. The handlebars are therefore raised and made up of two lateral handles ending in handles. Each of these is movable in direction and is connected to the steering system by a cable. So the front wheel of the vehicle can be controlled in steering by the hands of the user, while the latter performs pedaling maneuvers.
Or, dans ce système, l'action d'une poignée est indépendante de l'action de l'autre poignée. En d'autres termes, les actions des poignées ne sont pas coordonnées. Un des désavantages qui résulte de cet état de fait, est que, en cas de danger, les réflexes de l'utilisateur ne permettent pas d'agir volontairement sur la bonne poignée à manœuvrer pour sauver la situation.However, in this system, the action of a handle is independent of the action of the other handle. In other words, the actions of the handles are not coordinated. One of the disadvantages which results from this fact is that, in the event of danger, the reflexes of the user do not allow to act voluntarily on the right handle to maneuver to save the situation.
Le but principal de l'invention est donc de proposer un autre système directionnel utilisable sur un tricycle remédiant, entre autres, à ces inconvénients.The main object of the invention is therefore to propose another directional system usable on a tricycle overcoming, among other things, these drawbacks.
Résumé de l'inventionSummary of the invention
A cet effet, un premier objet de l'invention est un système de commande par câbles d'une pièce mobile d'un dispositif constitué de deux manettes pivotantes séparées et solidaires chacune de la première extrémité d'un premier câble, les deuxièmes extrémités de chacun des deux premiers câbles étant fixées chacune de part et d'autre de l'arbre de direction, pour commander l'orientation de la pièce mobile par pivotement d'une manette latérale, afin de provoquer la traction du câble correspondant parmi les deux premiers câbles et obtenir le mouvement de la pièce mobile. Selon l'invention, il comprend un deuxième câble dont une première extrémité est fixée à une première manette latérale, de façon opposée à la première extrémité du premier câble correspondant et dont la deuxième extrémité est fixée à la deuxième manette latérale, de façon opposée à la première extrémité du premier- câble correspondant. Cette disposition permet d'asservir les deux manettes l'une à l'autre.' De cette manière, l'action de l'opérateur sur une des manettes provoque un mouvement conjoint sur l'autre manette, même si l'opérateur n'agit pas sur cette deuxième manette. On comprend aisément que ceci facilite la conduite d'un véhicule léger. De plus, en cas de danger ou de situation accidentelle, un réflexe de l'opérateur sur l'une des deux manettes permet d'agir, quelle que soit la manette, sur le système de direction. • To this end, a first object of the invention is a cable control system for a moving part of a device consisting of two separate pivoting levers, each secured to the first end of a first cable, the second ends of each of the first two cables being fixed each on either side of the steering shaft, to control the orientation of the moving part by pivoting a lateral lever, in order to cause the traction of the corresponding cable among the first two cables and get the movement of the moving part. According to the invention, it comprises a second cable, a first end of which is fixed to a first lateral lever, opposite to the first end of the first corresponding cable, and the second end of which is fixed to the second lateral lever, opposite to the first end of the corresponding first cable. This arrangement allows the two controllers to be slaved to one another. 'In this way, the operator of the action on either controller causes joint movement on the other handle, even if the operator does not act on the second lever. It is easily understood that this facilitates driving a light vehicle. In addition, in the event of danger or accidental situation, an operator reflex on one of the two joysticks makes it possible to act, whatever the joystick, on the steering system. •
Un deuxième objet est un système directionnel pour véhicule possédant : - au moins une roue directrice montée tournante autour d'un axe perpendiculaire à un arbre de direction ; deux manettes latérales pivotantes séparées et solidaires chacune de la première extrémité d'un premier câble, les deuxièmes extrémités de chacun des deux premiers câbles étant fixées chacune de part et d'autre de l'arbre de direction, pour commander l'orientation de la roue directrice par pivotement d'une manette latérale, afin de provoquer la traction du câble correspondant parmi les deux premiers câbles et obtenir la rotation de l'arbre de direction.A second object is a directional system for a vehicle having: - at least one steering wheel mounted to rotate about an axis perpendicular to a steering shaft; two separate pivoting side levers each secured to the first end of a first cable, the second ends of each of the first two cables being each fixed on either side of the steering shaft, to control the orientation of the steerable wheel by pivoting a lateral lever, in order to cause the traction of the corresponding cable from the first two cables and obtain the rotation of the steering shaft.
Selon l'invention, il comprend un deuxième câble dont une première extrémité est fixée à une première manette latérale, de façon opposée à la première extrémité du premier câble correspondant et dont la deuxième extrémité est fixée à la deuxième manette latérale, de façon opposée à la première extrémité du premier câble correspondant. Cette disposition permet d'asservir les deux manettes l'une à l'autre. De cette manière, l'action de l'opérateur sur une des manettes provoque un mouvement conjoint sur l'autre manette, même si l'opérateur n'agit pas sur cette deuxième manette. On comprend aisément que ceci facilite la conduite d'un véhicule léger. De plus, en cas de danger ou de situation accidentelle, un réflexe de l'opérateur sur l'une des deux manettes permet d'agir, quelle que soit la manette, sur le système de direction.According to the invention, it comprises a second cable, a first end of which is fixed to a first lateral lever, opposite to the first end of the first corresponding cable, and the second end of which is fixed to the second lateral lever, opposite to the first end of the first corresponding cable. This arrangement allows the two controllers to be slaved to one another. In this way, the action of the operator on one of the joysticks causes a joint movement on the other joystick, even if the operator does not act on this second joystick. It is easily understood that this facilitates driving a light vehicle. In addition, in the event of danger or accidental situation, an operator reflex on one of the two joysticks makes it possible to act, whatever the joystick, on the steering system.
Dans la 'réalisation principale de ce système, on utilise un deuxième câble dont une première extrémité est fixée à une première manette latérale, de façon opposée à la première extrémité du premier câble correspondant et dont la deuxième extrémité est fixée à la deuxième manette latérale de façon opposée à la première extrémité du premier câble correspondant.In the main embodiment of this system, a second cable is used having a first end secured to a first side handle, oppositely to the first end of the corresponding first cable and the second end is fixed to the second side handle opposite the first end of the first corresponding cable.
Un autre objet principal selon l'invention est un tricycle utilisant le système ci-dessus mentionné, les deux manettes latérales étant montées de part et d'autre du tricycle, pivotante chacune autour d'un axe sensiblement horizontal et placée chacune à l'extrémité supérieure d'un bras de propulsion latéral, lui-même monté pivotant autour d'un axe sensiblement horizontal pour osciller en phase chacun d'un côté le long du corps d'un conducteur.Another main object according to the invention is a tricycle using the system mentioned above, the two lateral levers being mounted on either side of the tricycle, each pivoting around of a substantially horizontal axis and each placed at the upper end of a lateral propulsion arm, itself mounted to pivot about a substantially horizontal axis to oscillate in phase each on one side along the body of a driver.
Dans le tricycle décrit dans le document FR-2 959 742, le dispositif de transmission des efforts fournis par le conducteur par ses jambes et ses bras aux roues motrices est relativement compliqué. De plus, le système de transmission des efforts fournis aux bras de commande et de pédales est central, c'est-à-dire que le plateau et la chaîne de transmission sont placés entre les jambes du conducteur. Ceci a été envisagé dans le cadre d'un tricycle de compétition, mais est à proscrire dans le cadre d'une commercialisation pour le grand public, notamment pour enfants, pour des questions de sécurité. En effet, il est très aisé de se prendre un doigt, une main, ou même le pied dans le système de transmission central, et, en conséquence, de se blesser ou de détériorer le système.In the tricycle described in document FR-2 959 742, the device for transmitting the forces supplied by the driver by his legs and arms to the drive wheels is relatively complicated. In addition, the force transmission system supplied to the control arms and pedals is central, that is to say that the chainring and the transmission chain are placed between the driver's legs. This was considered in the context of a competition tricycle, but should be avoided in the context of marketing for the general public, especially for children, for safety reasons. Indeed, it is very easy to take a finger, a hand, or even the foot in the central transmission system, and, as a result, to injure or deteriorate the system.
Dans ce •' cas, on prévoit que les bras de propulsion du tricycle sont accouplés pour être actionnés en même temps et dans le même sens, pour contribuer à la propulsion du tricycle, en actionnant un système de bielle/manivelle assujetti à au moins une roue motrice. Le tricycle possède alors une seule pédale de traction placée dans l'axe du tricycle, devant le siège du conducteur, sur un axe moteur en vilebrequin, afin d'entraîner la au moins une roue motrice du tricycle. Dans une première variante, l'arbre vilebrequin moteur est l'axe de la au moins une roue motrice.In that • 'case, it is expected that the tricycle drive arms are coupled to be actuated simultaneously and in the same direction to help propel the tricycle, by operating a system of connecting rod / crank subject to at least one Driving wheel. The tricycle then has a single traction pedal placed in the axis of the tricycle, in front of the driver's seat, on a crankshaft engine axis, in order to drive the at least one driving wheel of the tricycle. In a first variant, the engine crankshaft is the axis of the at least one drive wheel.
Dans une autre variante, l'arbre vilebrequin moteur entraîne une première roue dentée, entraînant elle-même une deuxième roue dentée solidaire de l'axe des roues motrices, par l'intermédiaire d'une chaîne d' entraînement .In another variant, the engine crankshaft drives a first toothed wheel, itself driving a second toothed wheel secured to the axis of the drive wheels, by means of a drive chain.
Il est avantageux d'utiliser une gaine autour de chacun des câbles.It is advantageous to use a sheath around each of the cables.
Pour des raisons de sécurité, les roues sont prévues de forme lenticulaire.For safety reasons, the wheels are provided in a lenticular shape.
Liste des figuresList of Figures
L'invention et ses différentes caractéristiques techniques seront mieux comprises à la lecture de la description suivante, accompagnée de quatre figures représentant respectivement : - figure 1, le tricycle selon l'invention ; figure 2, le schéma du principe du système directionnel selon l'invention ; figure 3, une manette utilisée __ dans ce système directionnel selon l'invention ; - figure 4, une variante de réalisation du tricycle selon l'invention. Description de deux réalisations de l' inventionThe invention and its various technical characteristics will be better understood on reading the following description, accompanied by four figures representing respectively: - Figure 1, the tricycle according to the invention; FIG. 2, the diagram of the principle of the directional system according to the invention; Figure 3, a joystick used __ in this directional system according to the invention; - Figure 4, an alternative embodiment of the tricycle according to the invention. Description of two embodiments of the invention
Le système de commande selon l'invention est décrit dans son application à un tricycle.The control system according to the invention is described in its application to a tricycle.
La figure 1 montre, en vue cavalière, un tricycle selon l'invention, c'est-à-dire étant équipé d'un système directionnel selon l'invention.Figure 1 shows a side view of a tricycle according to the invention, that is to say being equipped with a directional system according to the invention.
Il comprend principalement un châssis 1, une roue motrice 2, et une roue folle 2', qui sont ici deux roues avant et une roue arrière 3 qui est une roue directionnelle. On peut envisager deux roues motrices complétées d'un différentiel. Sur le châssis 1 est monté un siège, au niveau de la roue arrière directionnelle 3.It mainly comprises a chassis 1, a drive wheel 2, and a idler wheel 2 ', which are here two front wheels and a rear wheel 3 which is a directional wheel. One can envisage two driving wheels supplemented by a differential. On the chassis 1 is mounted a seat, at the level of the rear directional wheel 3.
La propulsion du tricycle est obtenue par les efforts conjugués d'un conducteur placé sur le siège 4, pédalant sur une unique pédale de propulsion 5 et actionnant deux bras de propulsion 6 latéraux. La pédale de propulsion 5 étant centrale et unique, les pieds et les jambes du conducteur produisent donc un mouvement conjugué. Il en est de même pour les bras du conducteur, puisque les bras de propulsion 6 du tricycle sont accouplés de façon synchronisée et en phase. Ce type de propulsion s'apparente un peu à celle du cyclo-rameur. La pédale de propulsion 5 est montée sur un arbre de moteur 7 en forme de vilebrequin, entraînant directement la roue motrice 2. Les deux bras de propulsion 6 latéraux sont montés pivotants autour d'un axe horizontal fixe du châssis 1 et reliés aux roues motrices 2 au moyen d'une bielle 16.The propulsion of the tricycle is obtained by the combined efforts of a driver placed on the seat 4, pedaling on a single propulsion pedal 5 and actuating two lateral propulsion arms 6. Since the propulsion pedal 5 is central and unique, the driver's feet and legs therefore produce a combined movement. It is the same for the driver's arms, since the propulsion arms 6 of the tricycle are coupled synchronously and in phase. This type of propulsion is a bit like that of the cyclo-rower. The propulsion pedal 5 is mounted on a crankshaft-shaped engine shaft 7, directly driving the drive wheel 2. The two lateral propulsion arms 6 are pivotally mounted around a fixed horizontal axis of the chassis 1 and connected to the drive wheels 2 by means of a connecting rod 16.
Le pilotage en direction du tricycle selon l'invention s'effectue par deux manettes 8 montées pivotantes chacune à l'extrémité d'un bras à propulsion 6 latéral. Ainsi, tout en actionnant suffisamment les bras de propulsion 6 latéraux, le conducteur peut, en agissant sur les manettes 8, diriger le tricycle sur lequel il est installé. Ces manettes 8 peuvent être également équipées de commandes complémentaires, telles que les commandes de freins, un changement de vitesse, avec ou sans indexage, ou un avertisseur sonore.The steering towards the tricycle according to the invention is carried out by two levers 8 pivotally mounted each at the end of a lateral propulsion arm 6. Thus, while sufficiently actuating the lateral propulsion arms 6, the driver can, by acting on the levers 8, steer the tricycle on which it is installed. These levers 8 can also be equipped with additional controls, such as the brake controls, a gear change, with or without indexing, or an audible warning.
Les différents mouvements des manettes 8, commandant la direction du tricycle, sont transmises à la roue arrière directionnelle 3 par deux premiers câbles symbolisés par leurs gaines respectives 10 et dont chacun est fixé par une première extrémité à une des deux manettes 8 et dont l'autre extrémité est fixée à un arbre de direction 9 sur lequel est montée tournante la roue arrière de direction 3. Cet arbre de direction 9 est monté sensiblement vertical sur le châssis de manière à pouvoir tourner et faire pivoter la roue arrière de direction 3.The different movements of the levers 8, controlling the direction of the tricycle, are transmitted to the directional rear wheel 3 by two first cables symbolized by their respective sheaths 10 and each of which is fixed by a first end to one of the two levers 8 and whose the other end is fixed to a steering shaft 9 on which the rear steering wheel 3 is rotatably mounted. This steering shaft 9 is mounted substantially vertical on the chassis so as to be able to rotate and pivot the rear steering wheel 3.
On remarque que le système de propulsion avec une pédale unique 5 centrale permet de libérer l'espace au niveau de l'entrejambe du conducteur. En outre, il permet à celui-ci d'être chaussé avec n'importe quel type de chaussure. En effet, dans le dispositif décrit dans le brevet FR-2 651 742, la proximité des manivelles de commande au niveau des pédales imposait l'utilisation de chaussures de sécurité. De plus, la pédale 5 est nettement plus spacieuse et permettra la fixation de systèmes spécifiques aux produits de rééducation médicale, notamment pour la fixation des pieds de l'utilisateur, et même des fixations du type vélo de course.It is noted that the propulsion system with a single central pedal 5 frees up the space at the crotch of the driver. In addition, it allows it to be fitted with any type of shoe. Indeed, in the device described in patent FR-2,651,742, the proximity of the control cranks at the level of the pedals required the use of safety shoes. In addition, the pedal 5 is significantly more spacious and will allow the attachment of specific systems to medical rehabilitation products, in particular for the attachment of the feet of the user, and even attachments of the racing bike type.
La figure 2 représente donc le schéma de principe du système directionnel selon l'invention. On y a fait figurer les deux manettes 8 placées aux extrémités des deux bras de propulsion 6, tous deux latéraux et solidarisés l'un par rapport à l'autre. En plus de cet élément, sont représentés trois câbles, dont deux premiers câbles 12D et 12G et un deuxième câble 13. De plus, trois poulies 14D, 14G et 15 complètent ce système. En fait, les deux manettes 8B, 8G sont solidaires chacune d'une des deux premières poulies, respectivement 14D et 14G. Le premier câble de droite 12D voit sa première extrémité fixée à la première poulie de droite 14D et sa deuxième extrémité fixée à la deuxième poulie 15. En correspondance, le premier câble de gauche 12G a sa première extrémité fixée à la première poulie de gauche 14G et sa deuxième extrémité fixée à la deuxième poulie 15, de manière opposée à l'extrémité du premier câble de droite 12D qui y est accroché.FIG. 2 therefore represents the block diagram of the directional system according to the invention. We have included the two levers 8 placed at the ends of the two propulsion arms 6, both lateral and secured to each other. In addition to this element, three cables are shown, including two first cables 12D and 12G and a second cable 13. In addition, three pulleys 14D, 14G and 15 complete this system. In fact, the two levers 8B, 8G are each secured to one of the first two pulleys, respectively 14D and 14G. The first right cable 12D has its first end fixed to the first right pulley 14D and its second end fixed to the second pulley 15. In correspondence, the first left cable 12G has its first end fixed to the first left pulley 14G and its second end fixed to the second pulley 15, opposite the end of the first right cable 12D which is hooked there.
On remarque que les deux premiers câbles 12D et 12G sont fixés sur leur poulie respective 14D et 14G de façon opposée. Ainsi, si un opérateur actionne les deux manettes 8D et 8G simultanément de la même façon, l'une des deux poulies 14D ou 14G tirera le premier câble 12D ou 12G qui lui est fixée et qui forcera la deuxième poulie 15 à tourner dans le sens de la traction de ce premier câble ainsi actionné. L'autre premier câble qui ne sera pas tiré n'exercera pas d'action sur la deuxième poulie 15. Inversement, si l'opérateur actionne simultanément les deux manettes 8D et 8G dans le sens contraire, le premier câble 12D ou 12G qui aurait effectué une traction dans le cas de l'orientation d'une des deux manettes 8D et 8G dans le sens inverse ne se verra pas tiré ni mis en traction. C'est l'autre câble qui le sera et qui exercera lui-même une traction sur la deuxième poulie 15, en sens opposé au sens dans lequel l'autre premier câble exerce une traction si les manettes 8D et 8G sont augmentées dans le sens contraire. Il est facile de comprendre que la deuxième poulie 15 peut alors être orientée dans un sens ou dans un autre par le simple actionnement simultané des deux manettes 8D et 8G. On rappelle que cette deuxième poulie 15 est solidaire de l'arbre de direction 9 de la figure 1 et agit sur la roue arrière 3 qui est directionnelle.Note that the first two cables 12D and 12G are fixed on their respective pulleys 14D and 14G in opposite directions. Thus, if an operator actuates the two levers 8D and 8G simultaneously in the same way, one of the two pulleys 14D or 14G will pull the first cable 12D or 12G which is fixed to it and which will force the second pulley 15 to rotate in the direction of traction of this first cable thus actuated. The other first cable which will not be pulled will not exert any action on the second pulley 15. Conversely, if the operator simultaneously actuates the two levers 8D and 8G in the opposite direction, the first cable 12D or 12G which would have carried out a traction in the case of the orientation of one of the two levers 8D and 8G in the opposite direction will not be pulled nor put in traction. It is the other cable which will be and which will itself exert traction on the second pulley 15, in the opposite direction to the direction in which the other first cable exerts traction if the levers 8D and 8G are increased in the direction opposite. It is easy to understand that the second pulley 15 can then be oriented in one direction or another by the simple simultaneous actuation of the two levers 8D and 8G. Recall that this second pulley 15 is integral with the steering shaft 9 of Figure 1 and acts on the rear wheel 3 which is directional.
Une caractéristique très importante de l'invention est constituée par la présence d'un deuxième câble 13 qui relie les deux premières poulies 14D et 14G et ceci de façon opposée au point de fixation des deux premiers câbles 12D et 12G sur ces premières poulies 14D et 14G. Ainsi, les deux manettes 8D et 8G sont reliées directement l'une à l'autre. Ceci a pour effet de faire ressentir à l'opérateur, par une première des deux manettes 8D et 8G la traction exercée sur la seconde manette, lorsque celle-ci est actionnée de manière à faire entrer son premier câble 12G et 12D en traction. En d'autres termes, l'utilisateur de ce système peut très bien utiliser qu'une seule des deux poignées 8D et 8G pour tourner la deuxième poulie 15, tout en conservant le parallélisme entre les deux manettes 8D et 8G. Cette disposition permet d'obtenir plusieurs avantages qui sont les suivants.A very important characteristic of the invention is constituted by the presence of a second cable 13 which connects the first two pulleys 14D and 14G and this opposite to the point of attachment of the first two cables 12D and 12G on these first pulleys 14D and 14G. Thus, the two controllers 8D and 8G are connected directly to each other. This has the effect of making the operator feel, by a first of the two joysticks 8D and 8G the traction exerted on the second joystick, when the latter is actuated so as to bring in its first cable 12G and 12D in traction. In other words, the user of this system can very well use only one of the two handles 8D and 8G to turn the second pulley 15, while maintaining the parallelism between the two levers 8D and 8G. This arrangement provides several advantages which are as follows.
En premier lieu, cette caractéristique facilite la coordination des mouvements de l'opérateur, lors de l'utilisation de ce système pour le guidage d'un tricycle ou d'un véhicule léger.Firstly, this characteristic facilitates the coordination of the movements of the operator, when using this system for guiding a tricycle or a light vehicle.
D'autre part, il permet, en situation extrême, voire accidentelle, que le système directionnel réponde à une notion de réflexe, en apportant une fiabilité absolue à l'opérateur. En effet, dans de telles situations, la maîtrise directionnelle du véhicule fait appel à des réflexes de l'opérateur, ces réflexes pouvant se matérialiser par des gestes d'une seule des deux mains. En d'autres termes, dans ce genre de situation accidentelle où seuls les réflexes interviennent, il est impensable de compter sur la lucidité de l'opérateur pour maîtriser la coordination simultanée des deux manettes 8D et 8G qui seraient indépendantes, sans le système de commande selon l'invention. Un autre avantage de la coordination de mouvements des deux manettes 8D et 8C est d'éviter de faire apparaître des tractions trop importantes dans les deux premiers câbles 12B et 12G, lorsque les mouvements simultanés des deux manettes 8D et 8G ne sont pas identiques. Ainsi, une usure prématurée des deux premiers câbles 12B et 12G peut être évitée. On précise qu'il est possible de prévoir des diamètres différents pour la deuxième poulie 15 par rapport à ceux des deux premières poulies 14D et 14G, de manière à faire apparaître un rapport de direction entre l'amplitude du pivotement des deux manettes 8D et 8G .et celle du pivotement de l'arbre de direction auquel est solidaire la deuxième poulie 15. Par exemple, si les premières poulies 14D et 14G ont un diamètre de 60 mm et que la deuxième poulie 15 a un diamètre de 45 mm, un rapport de direction de * apparaît. Ceci permet de faire tourner de 120° la deuxième poulie 15 lorsqu'on tourne seulement de 90° les deux manettes 8D et 8G. Ceci offre une grande manoeuvrabilité pour les véhicules équipés de ce système directionnel.On the other hand, it allows, in an extreme situation, even accidental, that the directional system responds to a notion of reflex, by bringing absolute reliability to the operator. Indeed, in such situations, the directional control of the vehicle calls upon the reflexes of the operator, these reflexes being able to materialize by gestures of only one of the two hands. In other words, in this kind of accidental situation where only the reflexes intervene, it is unthinkable to count on the lucidity of the operator to control the simultaneous coordination of the two joysticks 8D and 8G which would be independent, without the control system according to the invention. Another advantage of coordinating the movements of the two joysticks 8D and 8C is to avoid making excessive pull-ups appear in the first two cables 12B and 12G, when the simultaneous movements of the two joysticks 8D and 8G are not identical. Thus, premature wear of the first two cables 12B and 12G can be avoided. It is specified that it is possible to provide different diameters for the second pulley 15 relative to those of the first two pulleys 14D and 14G, so as to show a direction ratio between the amplitude of the pivoting of the two levers 8D and 8G .and that of the pivoting of the steering shaft to which the second pulley is secured 15. For example, if the first pulleys 14D and 14G have a diameter of 60 mm and the second pulley 15 has a diameter of 45 mm, a ratio * direction appears. This allows the second pulley 15 to be rotated by 120 ° when the two levers 8D and 8G are only rotated by 90 °. This offers great maneuverability for vehicles fitted with this steering system.
On pourrait également envisager de réaliser les trois câbles 12D et 12G et 13 sous la forme d'un seul câble fixé aux trois poulies 14B, 14G et 15.One could also consider making the three cables 12D and 12G and 13 in the form of a single cable fixed to the three pulleys 14B, 14G and 15.
Le montage des manettes est décrit de façon détaillée à la figure 3.The assembly of the levers is described in detail in Figure 3.
Une seule manette 8 a été représentée. Elle est montée pivotante autour d'un axe de rotation 18 fixe par rapport aux bras de propulsion 6 latéral. On utilise à cet effet deux flasques 17 fixés rigidement à l'extrémité d'un bras de propulsion 6 latéral. Ce montage est effectué par l'intermédiaire de la première poulie correspondante 14, à laquelle la manette est fixée de manière rigide. On peut même prévoir que ces deux éléments soient fabriqués d'une seule pièce. Sur la poulie 14 sont fixées une extrémité 22 d'un des deux premiers câbles 12 et, de façon opposée, une extrémité 23 du deuxième câble 13. On note que le premier câble 12 et le deuxième câble 13 peuvent être entourés chacun d'une gaine 10 dont l'extrémité vient en butée sur un arrêt de gaine 19 solidaire des deux flasques 17 et du bras de propulsion 6 latéral. La fixation de ces câbles 12 et 13 sur la poulie 14 peut se faire au moyen d'embouts injectés.A single lever 8 has been shown. It is pivotally mounted around an axis of rotation 18 fixed relative to the lateral propulsion arms 6. Two flanges 17 are used for this purpose rigidly fixed to the end of a lateral propulsion arm 6. This assembly is carried out by means of the first corresponding pulley 14, to which the lever is rigidly fixed. We can even provide that these two elements are made in one piece. On the pulley 14 are fixed one end 22 of one of the first two cables 12 and, opposite, one end 23 of the second cable 13. It is noted that the first cable 12 and the second cable 13 may each be surrounded by a sheath 10, the end of which abuts on a sheath stop 19 integral with the two flanges 17 and the propulsion arm 6 lateral. The fixing of these cables 12 and 13 on the pulley 14 can be done by means of injected end pieces.
Un soufflet en caoutchouc, non représenté, peut protéger avantageusement l'ensemble, intégrant ainsi l'aspect normatif et sécuritaire contre le coincement des doigts de l'opérateur.A rubber bellows, not shown, can advantageously protect the assembly, thus integrating the normative and safety aspect against trapping of the operator's fingers.
On note que, dans l'application de ce système directionnel à un tricycle, les manettes 8 sont équipées de commandes complémentaires d' actionnement des freins, d'un changement de vitesse avec ou sans indexage et éventuellement d'un avertisseur sonore.It should be noted that, in the application of this directional system to a tricycle, the levers 8 are equipped with additional controls for actuating the brakes, a gear change with or without indexing and possibly an audible warning.
En référence à la figure 4, on envisage une réalisation où la pédale 5 n'agit pas en prise directe sur les, ou la roues motrices, mais sur un arbre vilebrequin moteur 31, placé de façon décalée par rapport à l'axe 35 des deux, ou de la, roues motricesWith reference to FIG. 4, an embodiment is envisaged where the pedal 5 does not act in direct engagement on the, or the driving wheels, but on an engine crankshaft 31, placed in an offset manner relative to the axis 35 of the two or the drive wheels
2. Un tel arbre vilebrequin moteur entraîne une première roue dentée 32, entraînant elle-même une chaîne de transmission 33. Cette dernière est enroulée sur une deuxième roue dentée 34 solidaire de l'axe 35 des deux, ou de la, roues motrices 2. La première roue dentée 32 est un organe multifonction puisqu'elle permet également de recevoir la bielle 36 montée pivotante sur un des bras de propulsion 6, l'arbre vilebrequin moteur 31 et la première roue dentée 32 se trouvant, dans ce cas, au-delà des roues motrices 2 par rapport au siège du conducteur. Ceci écarte tout risque de coincement de la main de celui-ci dans le système de transmission et de coordination des mouvements, notamment au niveau de la bielle 36. La chaîne de transmission 33 pourrait être remplacée par une courroie ou tout autre moyen de transmission, les deux roues dentées 32 et 34 alors remplacées par les roues à courroie .2. Such an engine crankshaft drives a first toothed wheel 32, itself driving a transmission chain 33. The latter is wound on a second toothed wheel 34 secured to the axle 35 of the two, or the, drive wheels 2 The first toothed wheel 32 is a multifunction member since it also makes it possible to receive the connecting rod 36 pivotally mounted on one of the propulsion arms 6, the engine crankshaft 31 and the first toothed wheel 32 being, in this case, at beyond the driving wheels 2 by report to the driver's seat. This eliminates any risk of the hand being trapped in the transmission and movement coordination system, in particular at the connecting rod 36. The transmission chain 33 could be replaced by a belt or any other transmission means, the two toothed wheels 32 and 34 then replaced by the belt wheels.
On peut remarquer que les roues motrices 2 ont été représentées avec une forme lenticulaire. Ceci permet d'éviter qu'une main ou des doigts ne soit pris entre ses roues motrices 2 et la bielle de propulsion 16 ou 36, car la forme lenticulaire tendra à ce que ces doigts ou cette main ne feront que glisser sur le flasque de cette forme lenticulaire.It can be noted that the drive wheels 2 have been shown with a lenticular shape. This makes it possible to prevent a hand or fingers from being caught between its driving wheels 2 and the propulsion rod 16 or 36, because the lenticular shape will tend so that these fingers or this hand will only slide on the flange of this lenticular form.
Il est à noter qu'il faut prévoir un certain décalage entre les angles d'orientation de la manivelle sur laquelle est montée la pédale 5 et l'angle formé par le point d'articulation des bielles de transmission 36 et 16.It should be noted that a certain offset must be provided between the angles of orientation of the crank on which the pedal 5 is mounted and the angle formed by the point of articulation of the transmission connecting rods 36 and 16.
Un judicieux déphasage des points morts de chaque mouvement (bras de propulsion 6 et l'arbre vilebrequin moteur 7 ou 31) permet alors d'optimiser le rendement complet du dispositif. Bien entendu, il est possible de doubler le nombre de biellettes 16 ou 36 pour en disposer une de chacune côté du tricycle, afin d'équilibrer le poids et les efforts sur le système de transmission.A judicious phase shift of the dead centers of each movement (propulsion arm 6 and the engine crankshaft 7 or 31) then makes it possible to optimize the complete performance of the device. Of course, it is possible to double the number of links 16 or 36 to have one on each side of the tricycle, in order to balance the weight and the forces on the transmission system.
Le tricycle selon l'invention peut avoir sa roue de direction aussi bien à l'avant qu'à l'arrière. De même, il est également possible d'envisager une seule roue motrice et deux roues directionnelles. On note que ce type de propulsion peut également être adapté sur d'autres véhicules, non seulement des quadricycles et des bicycles, mais également sur des véhicules devant évoluer sur l'eau, la neige ou la glace. Le système de commande peut également équiper d'autres appareils fixes, tels que des appareils de culture physique, installés dans des gymnases pour pratiquer le sport en salle. On envisage également d'adapter le système de commande selon l'invention sur des appareils de maîtrise comportementale et de rééducation médicale. Enfin, des installations ludiques statiques peuvent également bénéficier d'un tel système de commande, notamment dans des installations pour parc de loisirs destinés aux enfants. Dans ces derniers cas, le système selon l'invention se généralise à un système de commande d'une pièce mobile d'un dispositif quelconque de l'installation. The tricycle according to the invention can have its steering wheel both at the front and at the rear. Likewise, it is also possible to envisage a single drive wheel and two directional wheels. It should be noted that this type of propulsion can also be adapted on other vehicles, not only quadricycles and bicycles, but also on vehicles having to operate on water, snow or ice. The control system can also be fitted to other fixed devices, such as physical training devices, installed in gymnasiums for practicing indoor sport. It is also envisaged to adapt the control system according to the invention on behavioral control and medical rehabilitation devices. Finally, static play facilities can also benefit from such a control system, in particular in amusement park facilities intended for children. In these latter cases, the system according to the invention is generalized to a system for controlling a moving part of any device of the installation.

Claims

REVENDICATIONS
1. Système de commande par câbles d'une pièce mobile d'un dispositif, constitué de deux manettes pivotantes séparées et solidaires chacune de la première extrémité d'un premier câble (12D, 12G) , les deuxièmes extrémités de chacun des deux premiers câbles étant fixées chacune de part et d'autre de l'arbre de direction (9) ou d'une deuxième poulie (15), pour commander l'orientation de la pièce mobile par pivotement d'une manette latérale (8D, 8G) , afin de provoquer la traction du câble correspondant parmi les deux premiers câbles et obtenir le mouvement de la pièce mobile, caractérisé en ce qu'il comprend un deuxième câble (13) dont une première extrémité est fixée à une première manette (8D, 8G) latérale, de façon opposée à la première extrémité du premier câble correspondant (12D, 12G) et dont la deuxième extrémité est fixée à la deuxième manette (8D, 8G) latérale, de façon opposée à la première extrémité du premier câble correspondant (12D,- 12G) .1. Cable control system for a moving part of a device, consisting of two separate pivoting handles each secured to the first end of a first cable (12D, 12G), the second ends of each of the first two cables being each fixed on either side of the steering shaft (9) or of a second pulley (15), to control the orientation of the movable part by pivoting a lateral lever (8D, 8G), in order to cause the traction of the corresponding cable among the first two cables and obtain the movement of the moving part, characterized in that it comprises a second cable (13), a first end of which is fixed to a first lever (8D, 8G) lateral, opposite the first end of the corresponding first cable (12D, 12G) and the second end of which is fixed to the second lever (8D, 8G) lateral, opposite the first end of the first corresponding cable ndant (12D, - 12G).
2. Système directionnel pour véhicule possédant : au moins une roue directrice (3) montée tournante autour d'un axe perpendiculaire à un arbre de direction (9) ; deux manettes (8) latérales pivotantes séparées et solidaires chacune de la première extrémité d' un premier câble (12D, 12G) , les deuxièmes extrémités de chacun des deux premiers câbles étant fixées chacune de part et d'autre de l'arbre de direction (9), pour commander l'orientation de la roue directrice (3) par pivotement d'une manette latérale, afin de provoquer la traction du câble correspondant parmi les deux premiers câbles (12D, 12G) et obtenir la rotation de l'arbre de direction (9), caractérisé en ce qu'il comprend un deuxième câble (13) dont une première extrémité est fixée à une première manette (8D, 8G) latérale, de façon opposée à la première extrémité du premier câble correspondant (12D, 12G) et dont la deuxième extrémité est fixée à la deuxième manette (8D, 8G) latérale, de façon opposée à la première extrémité du premier câble correspondant (12D, 12G) .2. Directional system for a vehicle having: at least one steering wheel (3) rotatably mounted about an axis perpendicular to a steering shaft (9); two separate pivoting side handles (8) each secured to the first end of a first cable (12D, 12G), the second ends of each of the first two cables being each fixed on either side of the steering shaft (9), to control the orientation of the steering wheel (3) by pivoting a lateral lever, in order to cause the traction of the corresponding cable from the first two cables (12D, 12G) and obtain the rotation of the steering shaft (9), characterized in that it comprises a second cable (13) whose first end is fixed to a first lateral handle (8D, 8G), opposite the first end of the first corresponding cable (12D, 12G) and the second end of which is fixed to the second side handle (8D, 8G), opposite the first end of the first corresponding cable (12D, 12G) .
3. Tricycle utilisant le système directionnel selon la revendication 2, possédant deux bras de propulsion (6), monté chacun pivotant autour d'un axe sensiblement horizontal, pour osciller chacun d'un côté du tricycle, caractérisé en ce que les deux manettes (8D, 8G) latérales sont montées chacune pivotante autour d'un axe sensiblement horizontal, chacune à l'extrémité supérieure d'un des deux bras de propulsion (6) latéraux.3. Tricycle using the steering system according to claim 2, having two propulsion arms (6), each pivoted about a substantially horizontal axis, to oscillate each on one side of the tricycle, characterized in that the two levers ( 8D, 8G) lateral are each pivotally mounted about a substantially horizontal axis, each at the upper end of one of the two lateral propulsion arms (6).
4. Tricycle selon la revendication 3, dans lequel les bras de propulsion (6) sont accouplés de manière à être actionnés en même temps dans le même sens pour contribuer à la propulsion du tricycle en actionnant un système de bielle/manivelle assujetti à deux roues motrices (2), caractérisé en ce qu'il possède une pédale (5) unique pour la traction, placée dans l'axe du tricycle, devant un siège (4) de conducteur, sur un arbre vilebrequin moteur (7, 31), afin d'entraîner les deux roues motrices (2) du tricycle.4. Tricycle according to claim 3, wherein the propulsion arms (6) are coupled so as to be actuated at the same time in the same direction to contribute to the propulsion of the tricycle by actuating a connecting rod / crank system secured to two wheels drive (2), characterized in that it has a single pedal (5) for traction, placed in the axis of the tricycle, in front of a driver's seat (4), on an engine crankshaft (7, 31), in order to drive the two driving wheels (2) of the tricycle.
5. Tricycle selon la revendication 3, caractérisé en ce qu'on utilise une gaine (10) autour de chacun des câbles (12D, 12G, 13) .5. Tricycle according to claim 3, characterized in that a sheath (10) is used around each of the cables (12D, 12G, 13).
6. Tricycle selon la revendication 3, caractérisé en ce que les roues (2, 3) sont de forme lenticulaire.6. Tricycle according to claim 3, characterized in that the wheels (2, 3) are of lenticular shape.
7. Tricycle selon la revendication 4, caractérisé en ce que l'arbre vilebrequin moteur (7) est l'axe des deux roues motrices (2). 7. Tricycle according to claim 4, characterized in that the engine crankshaft (7) is the axis of the two driving wheels (2).
8. Tricycle selon la revendication 4, caractérisé en ce que l'arbre vilebrequin moteur (31) entraîne une première roue dentée (32) , entraînant elle-même une deuxième roue dentée (34) solidaire d'un axe (35) des roues motrices (2), par l'intermédiaire d'une chaîne d'entraînement (33). 8. Tricycle according to claim 4, characterized in that the engine crankshaft (31) drives a first gear (32), itself driving a second gear (34) integral with an axis (35) of the wheels drive (2), via a drive chain (33).
EP02762531A 2001-07-06 2002-07-04 System for controlling a moving part, steering system for a light vehicle and tricycle fitted with said system Withdrawn EP1420999A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0109014A FR2826924B1 (en) 2001-07-06 2001-07-06 CONTROL SYSTEM, DIRECTIONAL SYSTEM FOR LIGHT VEHICLE AND TRICYCLE PROVIDED WITH SUCH A SYSTEM
FR0109014 2001-07-06
PCT/FR2002/002348 WO2003004346A1 (en) 2001-07-06 2002-07-04 System for controlling a moving part, steering system for a light vehicle and tricycle fitted with said system

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EP1420999A1 true EP1420999A1 (en) 2004-05-26

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EP (1) EP1420999A1 (en)
JP (1) JP2004521024A (en)
CN (1) CN1551848A (en)
CA (1) CA2452658A1 (en)
FR (1) FR2826924B1 (en)
WO (1) WO2003004346A1 (en)

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US20040173989A1 (en) 2004-09-09
US7066480B2 (en) 2006-06-27
WO2003004346A1 (en) 2003-01-16
FR2826924A1 (en) 2003-01-10
JP2004521024A (en) 2004-07-15
CN1551848A (en) 2004-12-01
CA2452658A1 (en) 2003-01-16
FR2826924B1 (en) 2003-10-10

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