EP1490240A1 - Tyre self-sealing device for the wheel of a vehicle - Google Patents

Tyre self-sealing device for the wheel of a vehicle

Info

Publication number
EP1490240A1
EP1490240A1 EP03745314A EP03745314A EP1490240A1 EP 1490240 A1 EP1490240 A1 EP 1490240A1 EP 03745314 A EP03745314 A EP 03745314A EP 03745314 A EP03745314 A EP 03745314A EP 1490240 A1 EP1490240 A1 EP 1490240A1
Authority
EP
European Patent Office
Prior art keywords
wheel
valve
self
sealing device
seat
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Withdrawn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
EP03745314A
Other languages
German (de)
French (fr)
Inventor
Michel Maquaire
David Adrion
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.)
Syegon
Original Assignee
Syegon
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 Syegon filed Critical Syegon
Publication of EP1490240A1 publication Critical patent/EP1490240A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/001—Devices for manually or automatically controlling or distributing tyre pressure whilst the vehicle is moving
    • B60C23/003—Devices for manually or automatically controlling or distributing tyre pressure whilst the vehicle is moving comprising rotational joints between vehicle-mounted pressure sources and the tyres
    • B60C23/00363—Details of sealings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/001—Devices for manually or automatically controlling or distributing tyre pressure whilst the vehicle is moving
    • B60C23/003—Devices for manually or automatically controlling or distributing tyre pressure whilst the vehicle is moving comprising rotational joints between vehicle-mounted pressure sources and the tyres
    • B60C23/00309—Devices for manually or automatically controlling or distributing tyre pressure whilst the vehicle is moving comprising rotational joints between vehicle-mounted pressure sources and the tyres characterised by the location of the components, e.g. valves, sealings, conduits or sensors
    • B60C23/00318—Devices for manually or automatically controlling or distributing tyre pressure whilst the vehicle is moving comprising rotational joints between vehicle-mounted pressure sources and the tyres characterised by the location of the components, e.g. valves, sealings, conduits or sensors on the wheels or the hubs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/001—Devices for manually or automatically controlling or distributing tyre pressure whilst the vehicle is moving
    • B60C23/003—Devices for manually or automatically controlling or distributing tyre pressure whilst the vehicle is moving comprising rotational joints between vehicle-mounted pressure sources and the tyres
    • B60C23/00345—Details of the rotational joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/001—Devices for manually or automatically controlling or distributing tyre pressure whilst the vehicle is moving
    • B60C23/003—Devices for manually or automatically controlling or distributing tyre pressure whilst the vehicle is moving comprising rotational joints between vehicle-mounted pressure sources and the tyres
    • B60C23/00354—Details of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
    • F16C41/005—Fluid passages not relating to lubrication or cooling

Definitions

  • the technical sector of the present invention is that of inflation and deflation systems of a vehicle wheel.
  • valve system is particularly suitable for heavy vehicles, such as trucks, military vehicles, public works or civil security vehicles.
  • This system must be adapted when it is to be applied to light vehicles.
  • the disadvantages of this system in the case of these light vehicles reside first of all in the fact that the dismantling operations of the wheel and / or of the valve always cause the deflation of the tire, which makes the phases particularly problematic and uncertain. wheel balancing. The user or the manufacturer is therefore obliged to install an isolation valve to avoid re-inflation of the wheel.
  • valve and its connection remain accessible from the outside and are subject to theft and deliberate theft (vandalism) or accidental (impact on the rim).
  • the object of the present invention is to propose a new organization for integrating a valve in a wheel making it possible to maintain the inflation pressure prevailing in the tire during mounting or dismounting of the wheel and / or of the valve.
  • the subject of the invention is therefore a self-sealing device for the tire of a vehicle wheel equipped with an inflation and deflation valve for the tire while ensuring its supply of compressed air using a pressure circuit.
  • the valve is disposed between the wheel and the wheel hub and in that it comprises a closure means integrated in the wheel supply circuit, said means being actuated in the open position in the presence of the valve and in the closed position in the absence of the valve.
  • the open position designates a state of the closure element for which air can pass from the valve to the tire as well as from the tire to the valve.
  • the sealing means consists of a finger extended by a frustoconical part, movable under the action of a spring inside a bore formed in the wheel supply circuit, said frustoconical part being able to be applied to a seat having a frustoconical profile under the action of the spring to close the wheel supply circuit.
  • frustoconical form is taken here by way of example.
  • Other means, such as a planar or spherical shape can be envisaged, but for a better legibility of the invention it is this example which will be used to explain the principle of the invention.
  • the valve consisting of a valve body and a cover, forms a housing delimited by the hub and the seat, both provided with communication means to allow the supply of compressed air to the wheel from a rotary joint, the seat being arranged at the wheel and the valve cover at the hub supporting the wheel.
  • valve is arranged in such a way that its axis of symmetry coincides with the axis of rotation of the wheel.
  • shutter means is arranged to act axially with respect to the wheel.
  • valve is screwed into the hub.
  • seat is provided with an indexing member relative to the hub, the indexing member, or locating, can, for example, be a pin or a screw.
  • the closure means is always arranged to act axially, but the valve is fixed to the rim by means of pressure screws.
  • the shutter means is arranged to act radially with respect to the wheel.
  • valve seat is provided with a substantially frustoconical extension intended to cooperate with the closure means, said extension being provided with means of communication between the valve and the wheel, and in that the wheel is closed externally.
  • the valve is held by friction in the base.
  • friction is meant a relationship allowing the valve to be easily inserted into the bore (for example a sliding pivot relationship) but of which an O-ring seals the assembly.
  • the seat is provided with a substantially cylindrical extension capped by a plug provided with a frustoconical part intended to cooperate with the closure means, said plug being screwed onto said extension, and in that the wheel is open externally.
  • a plug provided with a frustoconical part intended to cooperate with the closure means, said plug being screwed onto said extension, and in that the wheel is open externally.
  • a very first advantage of the present invention lies in the fact that the tire pressure is retained even when the wheel or the valve are removed.
  • Another advantage lies in the possibility of balancing without a tedious disassembly of the valve, the balancing being carried out on an apparatus of any type.
  • Another advantage lies in the quick and easy disassembly of the valve after disassembly of the wheel.
  • Yet another advantage of the invention lies in the fact that the entire system remains inaccessible from the outside, which prevents damage to the valve.
  • Yet another advantage lies in the fact that the central position of the valve makes it not very sensitive to centrifugal forces, which improves its reliability and its service life.
  • Yet another advantage lies in the technical implementation of the very simple assembly and in the minor modifications to be made to the wheel or its support.
  • FIG. 1 is a diametrical section of the wheel and of all of its components according to a first configuration
  • FIG. 2 is a partial enlarged view of FIG. 1,
  • FIG. 3 is a partial section showing an example of a shutter means
  • FIG. 6 is a partial section illustrating another variant of the valve assembly.
  • Figure 1 which shows a section of a wheel mounted on its rotational drive shaft
  • the wheel 1 consisting of a rim 2 and a tire 3.
  • the rim 2 is connected to its support shaft 4 via a hub 5.
  • Two bearings 6a and ⁇ b are conventionally interposed between the shaft 4 and the hub 5.
  • These bearings 6 conventionally comprise an external cage 7 and an internal cage 8 between which is disposed a rotating joint 9 to allow communication of pressurized fluid between an external source 10 and the tire 3 as will be explained below in relation to FIG. 2.
  • the rim 2 is mounted, in a conventional manner, on the hub by means of bolts, a housing 11 of which is visible in the figure.
  • a valve 12 is mounted in the hub 5 and according to the invention it comprises a valve cover 13 screwed into the hub 5 and a seat 14, the valve being indexed relative to the hub by means of a screw 15.
  • This screw allows the valve 12 to be indexed relative to the hub to ensure continuity of the fluid circuit as explained below.
  • a brake disc 16 integral with the hub 5.
  • the brake disc is provided with grooves 63 allowing the air to escape, in accordance with the operation of the valve explained in the previously cited patents.
  • the rim 2 is equipped with a radial duct 17 and an axial duct 18 allowing fluid communication between the valve 12 and the tire 3 along the arrow F.
  • a closure means 19 interposed in the axial duct 18, intended to cooperate with the seat 14 of the valve.
  • the closure means therefore occupies an axial position in this configuration and is in the open position.
  • the fluid circuit between the source 10 and the tire comprises, in addition to the conduits 17 and 18, a first axial conduit 20 followed by a radial conduit 21 and a second axial duct 22 formed in the seat 14, an axial bore 23 and a radial duct 24 formed in the hub 5, a slot 25 delimiting the internal cage 8 in two parts, a conduit 26 formed in the outer cage 7 and a conduit 27 formed in the shaft 4.
  • these different conduits are provided to communicate with each other during the mounting of these different elements.
  • the bore 23 is tapped to receive the valve 12 by screwing.
  • the passage of air which will successively pass through the duct 27, the rotary joint 9, the rotary joint 25, the slot 25, the duct 24, is controlled in a known manner.
  • the circuit described above is controlled under vacuum using adequate means.
  • the inflation and deflation control means can be those described in patent FR-2731655. They can be used as is without significant modification. It is therefore not necessary to describe them in detail.
  • seals are provided to prevent possible leaks and maintain the pressure in the tire at the desired value.
  • FIG. 3 there is shown in section an embodiment of the shutter means 19.
  • This comprises a pin 30 whose free end is supported on the seat 14 and which extended at the other end by a frustoconical part 31 on which an elastic element 32 acts, for example a helical spring.
  • This spring 32 is for example applied against the bottom of the conduit 18.
  • a stop 33 is provided with a conical flare 34 of the same configuration as the part 31.
  • the stop 33 is maintained in place using an insert 35 fixed to the rim 4.
  • O-rings 36 are integrated in the rim 4 and the seat 14 to seal between the insert 35, the rim 4 and the seat 14. The operation is as follows.
  • the shutter 19 lets air pass (in one direction or the other) only when the seat 14 actuates the finger 30, that is to say when the valve is mounted on the rim, thus allowing circulation air between line 21 coming from the valve 12 and the conduit 17 communicating with the tire 3.
  • the spring 32 pushes the finger 30 towards the outside of the bore 18, so that the part 31 comes into intimate contact with the conical surface 34.
  • the tire 3 is kept under pressure by closing the circuit and the balancing or intervention operations on the means are possible without loss of pressure.
  • One of the roles of the insert 35 being to ensure the sealing of the system between the moment when the finger 30 is actuated and the moment when the valve is fixed in a completely sealed manner on the rim.
  • FIG 4 there is shown an alternative embodiment in which the closure means is arranged in a radial position.
  • the finger 30 is then placed in the radial duct 17 as well as a retainer 40 provided with a conical surface, the spring 32 bearing on a stop 41 fixed in the duct 17.
  • the seat 14 extended by a thread 43 capable of being screwed onto the rim 2 in a bore 46 closed on the outer side and is provided with a ramp 48 on which the finger 30 comes to bear.
  • This seat 14 is pierced with a radial duct 44 and an axial duct 45 communicating with one another.
  • the radial duct 44 communicates with a chamber 54 delimited by the rim 2 and the seat 14, which in turn communicates with the radial duct 17.
  • the axial duct 45 communicates with the valve body 13.
  • This valve is isolated in its housing so conventional in the hub 5, for example using an O-ring 49.
  • An O-ring 47 inserted in a housing formed in the rim provides sealing between the rim and the seat 14.
  • a washer 50 called Belleville, ensures the clamping of the valve 12 and keeping it in position.
  • the valve 12 is not screwed into the hub 5 but is linked by friction in the bore 23.
  • the operation is as follows. When the rim is disassembled, the valve remains attached to it and it then suffices to unscrew the valve to separate it from the rim for balancing operations. As the valve is unscrewed, the finger 30 travels along the ramp 48 and it comes to bear against the conical surface of the retainer 40 by closing the fluid circuit. In the same way, when the valve is screwed on, the finger 30 travels along the ramp 48 and it moves away from the conical surface of the stopper 40 by opening the fluid circuit.
  • FIG. 5 shows the mounting of a valve 12 having a configuration identical to that of FIG. 4 with the exception of the seat 14.
  • the rim 2 is open towards the outside, that is to say that is, it has a hole 51 aligned with the bore 23 of the hub.
  • the seat 14 is pierced with a radial duct 52 and an axial duct 53 communicating with each other.
  • the conduit 53 communicates with the valve 12 and the conduit 52 communicates with a chamber 54 delimited by the rim 2, the seat 14 and a cap 55.
  • This cap is screwed onto the end piece of the cover and is adjusted in the rim 2 in a leaktight manner using an O-ring 56.
  • This cap comprises a ramp 57 on which the finger of the shutter comes into contact.
  • This cap therefore realizes on the one hand the sealing of the chamber 54 towards the outside and on the other hand the maintenance of the opening of the shutter 19.
  • Another O-ring 58 ensures the sealing between the seat 14 and the rim 2.
  • the valve 12 is fixed to the rim by friction and it is the cap 55 which provides the partial fixing. This fixing is sufficient to maintain the valve and preserve it from stresses during handling operations. Total fixing is ensured by an elastic element 50 such as a Belleville washer.
  • the valve body is also fixed by friction in the hub 5.
  • the assembly is as follows. We start by introducing the valve 12 into the rim 2, then we introduce the cap 55 by screwing on the cover. As the screwing progresses, using three threads for example, the ramp 57 pushes the finger of the shutter 19 which opens the tire supply circuit. The system is ready to work, you can mount the wheel on the hub. Loosening the cap (a few turns) closes the pipe while holding the valve in place.
  • An implementation variant is illustrated in the figure
  • valve 12 is no longer fixed on the hub 5 but on the rim 2.
  • the seat 14 of the valve is fixed on the rim 2 by means of 'A tubular insert 60 attached to the rim.
  • the fixing of the cover is ensured by suitable connecting elements, for example three pressure screws located in the housings 62 adapted to this type of fixing.
  • valve 12 is then housed in the bore of the hub 5, it produces friction.

Abstract

The invention relates to a tyre self-sealing device for the wheel of a vehicle which is equipped with a tyre inflating and deflating valve, ensuring a supply of compressed air by means of a pressurised circuit. The aforementioned valve (12) is disposed between the wheel (2) and the hub (5) of the wheel. Moreover, the invention comprises a sealing means (19) which is built into the wheel supply circuit, said means (19) being in the open position in the presence of the valve and in the closed position in the absence of the valve. The sealing means (19) comprises a finger (30) which extends into a truncated cone-shaped part (31) that moves under the action of a spring (32) inside a bore (18) in the wheel supply circuit. Said truncated cone-shaped part (31) can be applied against a seat (33) having a truncated cone-shaped profile under the action of the spring in order to close the wheel supply circuit.

Description

Dispositif auto-obturant du pneumatique d'une roue de véhiculeSelf-sealing device for the tire of a vehicle wheel
Le secteur technique de la présente invention est celui des systèmes de gonflage et de dégonflage d'une roue de véhicule.The technical sector of the present invention is that of inflation and deflation systems of a vehicle wheel.
On connaît, notamment par les brevets FR-2667826 et FR- 2731655, le principe des vannes permettant le gonflage et le dégonflage des pneus de véhicules par commande à distance.We know, in particular from patents FR-2667826 and FR-2731655, the principle of valves allowing the inflation and deflation of vehicle tires by remote control.
Dans le domaine d'application évoqué ci-dessus, on sait que le système des vannes est particulièrement adapté aux engins lourds, tels les camions, les véhicules militaires, les engins de travaux publics ou de sécurité civile. Ce système doit être adapté lorsqu'on veut l'appliquer à des véhicules légers. Les inconvénients de ce système dans le cas de ces véhicules légers résident tout d' abord dans le fait que les opérations de démontage de la roue et/ou de la vanne entraînent toujours le dégonflage du pneu, ce qui rend particulièrement problématiques et incertaines les phases d'équilibrage des roues. L'utilisateur ou le constructeur est alors obligé d'installer un robinet d'isolation pour éviter un regonflage de la roue.In the field of application mentioned above, it is known that the valve system is particularly suitable for heavy vehicles, such as trucks, military vehicles, public works or civil security vehicles. This system must be adapted when it is to be applied to light vehicles. The disadvantages of this system in the case of these light vehicles reside first of all in the fact that the dismantling operations of the wheel and / or of the valve always cause the deflation of the tire, which makes the phases particularly problematic and uncertain. wheel balancing. The user or the manufacturer is therefore obliged to install an isolation valve to avoid re-inflation of the wheel.
Un autre inconvénient réside dans le fait que la vanne et son raccord restent accessibles de l'extérieur et sont sujets aux vols et aux détériorations volontaires (vandalisme) ou accidentelles (chocs sur la jante) .Another drawback lies in the fact that the valve and its connection remain accessible from the outside and are subject to theft and deliberate theft (vandalism) or accidental (impact on the rim).
Un autre inconvénient réside dans le fait que le système étant excentré par rapport à l'axe de rotation de la roue, celui-ci subit d'importantes forces centrifuges en raison de la vitesse élevée qui nuisent à son bon fonctionnement.Another disadvantage lies in the fact that the system being eccentric relative to the axis of rotation of the wheel, the latter undergoes significant centrifugal forces due to the high speed which adversely affect its proper functioning.
Enfin, la fixation de la vanne sur la jante de la roue nécessite des perçages qui fragilisent donc la jante.Finally, the fixing of the valve on the rim of the wheel requires holes which therefore weaken the rim.
Le but de la présente invention est de proposer une nouvelle organisation d'intégration d'une vanne dans une roue permettant de conserver la pression de gonflage régnant dans le pneumatique lors du montage ou du démontage de la roue et/ou de la vanne. L'invention a donc pour objet un dispositif auto-obturant du pneumatique d'une roue de véhicule équipée d'une vanne de gonflage et de dégonflage du pneumatique tout en assurant son alimentation en air comprimé à l'aide d'un circuit sous pression, caractérisé en ce que la vanne est disposée entre la roue et le moyeu de la roue et en ce qu' il comprend un moyen d'obturation intégré dans le circuit d'alimentation de la roue, ledit moyen étant actionné en position ouverte en présence de la vanne et en position fermée en l'absence de la vanne. La position ouverte désignant un état de l'élément d'obturation pour lequel l'air peut aussi bien passer de la vanne vers le pneumatique que du pneumatique vers la vanne.The object of the present invention is to propose a new organization for integrating a valve in a wheel making it possible to maintain the inflation pressure prevailing in the tire during mounting or dismounting of the wheel and / or of the valve. The subject of the invention is therefore a self-sealing device for the tire of a vehicle wheel equipped with an inflation and deflation valve for the tire while ensuring its supply of compressed air using a pressure circuit. , characterized in that the valve is disposed between the wheel and the wheel hub and in that it comprises a closure means integrated in the wheel supply circuit, said means being actuated in the open position in the presence of the valve and in the closed position in the absence of the valve. The open position designates a state of the closure element for which air can pass from the valve to the tire as well as from the tire to the valve.
Avantageusement, le moyen d'obturation est constitué d'un doigt prolongé par une partie tronconique, mobile sous l'action d'un ressort à l'intérieur d'un alésage pratiqué dans le circuit d'alimentation de la roue, ladite partie tronconique étant apte à s'appliquer sur un siège présentant un profil tronconique sous l'action du ressort pour fermer le circuit d'alimentation de la roue. Il est évident que la forme tronconique est ici prise à titre d'exemple. D'autres moyens, telle une forme plane ou sphérique sont envisageables, mais pour une meilleure lisibilité de l'invention c'est cet exemple qui sera utilisé pour expliquer le principe de l'invention. Avantageusement encore, la vanne, constituée d'un corps de vanne et d'un couvercle, forme un boîtier délimité par le moyeu et le siège, munis tous deux de moyens de communication pour permettre l'alimentation en air comprimé de la roue à partir d'un joint tournant, le siège étant disposé au niveau de la roue et le couvercle de vanne au niveau du moyeu supportant la roue .Advantageously, the sealing means consists of a finger extended by a frustoconical part, movable under the action of a spring inside a bore formed in the wheel supply circuit, said frustoconical part being able to be applied to a seat having a frustoconical profile under the action of the spring to close the wheel supply circuit. It is obvious that the frustoconical form is taken here by way of example. Other means, such as a planar or spherical shape can be envisaged, but for a better legibility of the invention it is this example which will be used to explain the principle of the invention. Advantageously also, the valve, consisting of a valve body and a cover, forms a housing delimited by the hub and the seat, both provided with communication means to allow the supply of compressed air to the wheel from a rotary joint, the seat being arranged at the wheel and the valve cover at the hub supporting the wheel.
Avantageusement encore, la vanne est disposé de manière telle que son axe de symétrie est confondu avec l'axe de rotation de la roue. Selon une caractéristique, le moyen d'obturation est disposé pour agir axialement par rapport à la roue.Advantageously also, the valve is arranged in such a way that its axis of symmetry coincides with the axis of rotation of the wheel. According to one characteristic, the shutter means is arranged to act axially with respect to the wheel.
Avantageusement, la vanne est vissée dans le moyeu. Avantageusement encore, le siège est muni d'un organe d'indexation par rapport au moyeu, l'organe d'indexation, ou locating, peut, par exemple, être un pion ou une vis.Advantageously, the valve is screwed into the hub. Advantageously also, the seat is provided with an indexing member relative to the hub, the indexing member, or locating, can, for example, be a pin or a screw.
Selon une caractéristique, le moyen d'obturation est toujours disposé pour agir axialement mais la vanne est fixée sur la jante par l'intermédiaire de vis de pression.According to one characteristic, the closure means is always arranged to act axially, but the valve is fixed to the rim by means of pressure screws.
Selon une autre caractéristique, le moyen d'obturation est disposé pour agir radiale ent par rapport à la roue.According to another characteristic, the shutter means is arranged to act radially with respect to the wheel.
Avantageusement, le siège de la vanne est muni d'un prolongement sensiblement tronconique destiné à coopérer avec le moyen d'obturation, ledit prolongement étant muni de moyens de communication entre la vanne et la roue, et en ce que la roue est fermée extérieurement.Advantageously, the valve seat is provided with a substantially frustoconical extension intended to cooperate with the closure means, said extension being provided with means of communication between the valve and the wheel, and in that the wheel is closed externally.
Avantageusement, la vanne est maintenue par friction dans l'embase. On entend par friction une relation permettant d'insérer aisément la vanne dans l'alésage (par exemple une relation de pivot glissant) mais dont un joint torique assure l'étanchéité du montage.Advantageously, the valve is held by friction in the base. By friction is meant a relationship allowing the valve to be easily inserted into the bore (for example a sliding pivot relationship) but of which an O-ring seals the assembly.
Avantageusement encore, le siège est muni d'un prolongement sensiblement cylindrique coiffé par un bouchon muni d'une partie tronconique destinée à coopérer avec le moyen d'obturation, ledit bouchon étant vissé sur ledit prolongement, et en ce que la roue est ouverte extérieurement . Un autre avantage réside dans le fait qu'un tel montage permet d'assurer une dépressurisation progressive des volumes situés entre l'obturateur et la vanne lors du démontage de celle-ci .Advantageously also, the seat is provided with a substantially cylindrical extension capped by a plug provided with a frustoconical part intended to cooperate with the closure means, said plug being screwed onto said extension, and in that the wheel is open externally. . Another advantage lies in the fact that such an assembly makes it possible to ensure progressive depressurization of the volumes located between the shutter and the valve during disassembly of the latter.
Un tout premier avantage de la présente invention réside dans le fait que l'on conserve la pression du pneumatique même lorsque la roue ou la vanne sont démontées.A very first advantage of the present invention lies in the fact that the tire pressure is retained even when the wheel or the valve are removed.
Un autre avantage réside dans la possibilité de procéder à l'équilibrage sans un démontage fastidieux de la vanne, l'équilibrage étant réalisé sur un appareil de type quelconque.Another advantage lies in the possibility of balancing without a tedious disassembly of the valve, the balancing being carried out on an apparatus of any type.
Un autre avantage réside dans le démontage rapide et de manière aisée de la vanne après démontage de la roue. Un autre avantage encore de l'invention réside dans le fait que l'ensemble du système reste inaccessible de l'extérieur, ce qui empêche des dégradations de la vanne.Another advantage lies in the quick and easy disassembly of the valve after disassembly of the wheel. Yet another advantage of the invention lies in the fact that the entire system remains inaccessible from the outside, which prevents damage to the valve.
Un autre avantage encore réside dans le fait que la position centrale de la vanne la rend peu sensible aux forces centrifuges, ce qui améliore sa fiabilité et sa durée de vie.Yet another advantage lies in the fact that the central position of the valve makes it not very sensitive to centrifugal forces, which improves its reliability and its service life.
Un autre avantage encore réside dans la réalisation technique du montage très simple et dans les modifications mineures à effectuer sur la roue ou son support. Avantageusement toujours le système reste totalement étanche tant que le moyen d'obturation n'est pas fermé.Yet another advantage lies in the technical implementation of the very simple assembly and in the minor modifications to be made to the wheel or its support. Advantageously always the system remains completely sealed as long as the closure means is not closed.
D'autres caractéristiques, détails et avantages de l'invention apparaîtront plus clairement à la lecture du complément de description qui va suivre de modes de réalisation donnés à titre indicatif en relation avec des dessins sur lesquels :Other characteristics, details and advantages of the invention will appear more clearly on reading the additional description which follows of embodiments given for information only in relation to the drawings in which:
- la figure 1 est une coupe diamétrale de la roue et de tous ses composants suivant une première configuration,FIG. 1 is a diametrical section of the wheel and of all of its components according to a first configuration,
- la figure 2 est une vue partielle agrandie de la figure 1,FIG. 2 is a partial enlarged view of FIG. 1,
- la figure 3 est une coupe partielle montrant un exemple de moyen obturateur,FIG. 3 is a partial section showing an example of a shutter means,
- la figure 4 est une coupe partielle illustrant une autre variante de réalisation de l'invention, - la figure 5 est une coupe partielle illustrant une autre variante de réalisation de l'invention, et- Figure 4 is a partial section illustrating another alternative embodiment of the invention, - Figure 5 is a partial section illustrating another alternative embodiment of the invention, and
- la figure 6 est une coupe partielle illustrant une autre variante de montage de la vanne.- Figure 6 is a partial section illustrating another variant of the valve assembly.
Sur la figure 1, qui représente une coupe d'une roue montée sur son arbre d'entraînement en rotation, on voit la roue 1 constituée d'une jante 2 et d'un pneumatique 3. La jante 2 est reliée à son arbre support 4 par l'intermédiaire d'un moyeu 5. Deux roulements 6a et βb sont interposés de manière classique entre l'arbre 4 et le moyeu 5. Ces roulements 6 comprennent classiquement une cage externe 7 et une cage interne 8 entre lesquelles est disposé un joint tournant 9 pour permettre une communication de fluide sous pression entre une source externe 10 et le pneumatique 3 comme cela sera expliqué ci-après en relation avec la figure 2. La jante 2 est montée, de manière classique, sur le moyeu par l'intermédiaire de boulons dont un logement 11 est visible sur la figure. Une vanne 12 est montée dans le moyeu 5 et elle comprend selon l'invention un couvercle de vanne 13 vissé dans le moyeu 5 et un siège 14, la vanne étant indexée par rapport au moyeu par l'intermédiaire d'une vis 15. Cette vis permet d'indexer la vanne 12 par rapport au moyeu pour assurer la continuité du circuit de fluide comme cela expliqué ci-après. Sur la figure, on voit encore un disque de frein 16 solidaire du moyeu 5. Le disque de frein est pourvu de rainures 63 permettant l'échappement d'air, conformément au fonctionnement de la vanne expliqué dans les brevets précédemment cités . La jante 2 est équipée d'un conduit radial 17 et d'un conduit axial 18 permettant une communication de fluide entre la vanne 12 et le pneumatique 3 suivant la flèche F. On parlera de conduit radial lorsque le conduit est disposé suivant une direction perpendiculaire à l'axe de rotation XX' du moyeu 5 et de direction axiale lorsque le conduit est disposé suivant une direction parallèle à l'axe XX'. Suivant l'invention, on prévoit un moyen d'obturation 19 interposé dans le conduit axial 18, destiné à coopérer avec le siège 14 de la vanne. Le moyen d'obturation occupe donc une position axiale dans cette configuration et est en position ouverte.In Figure 1, which shows a section of a wheel mounted on its rotational drive shaft, we see the wheel 1 consisting of a rim 2 and a tire 3. The rim 2 is connected to its support shaft 4 via a hub 5. Two bearings 6a and βb are conventionally interposed between the shaft 4 and the hub 5. These bearings 6 conventionally comprise an external cage 7 and an internal cage 8 between which is disposed a rotating joint 9 to allow communication of pressurized fluid between an external source 10 and the tire 3 as will be explained below in relation to FIG. 2. The rim 2 is mounted, in a conventional manner, on the hub by means of bolts, a housing 11 of which is visible in the figure. A valve 12 is mounted in the hub 5 and according to the invention it comprises a valve cover 13 screwed into the hub 5 and a seat 14, the valve being indexed relative to the hub by means of a screw 15. This screw allows the valve 12 to be indexed relative to the hub to ensure continuity of the fluid circuit as explained below. In the figure, we can also see a brake disc 16 integral with the hub 5. The brake disc is provided with grooves 63 allowing the air to escape, in accordance with the operation of the valve explained in the previously cited patents. The rim 2 is equipped with a radial duct 17 and an axial duct 18 allowing fluid communication between the valve 12 and the tire 3 along the arrow F. We will speak of a radial duct when the duct is arranged in a perpendicular direction to the axis of rotation XX 'of the hub 5 and of axial direction when the duct is arranged in a direction parallel to the axis XX'. According to the invention, there is provided a closure means 19 interposed in the axial duct 18, intended to cooperate with the seat 14 of the valve. The closure means therefore occupies an axial position in this configuration and is in the open position.
Sur la figure 2, qui représente une vue partielle agrandie de la figure 1, on voit que le circuit de fluide entre la source 10 et le pneumatique comprend, outre les conduits 17 et 18, un premier conduit axial 20 suivi d'un conduit radial 21 et d'un second conduit axial 22 pratiqués dans le siège 14, d'un alésage axial 23 et d'un conduit radial 24 pratiqués dans le moyeu 5, d'une fente 25 délimitant la cage interne 8 en deux parties, d'un conduit 26 pratiqué dans la cage externe 7 et d'un conduit 27 pratiqué dans l'arbre 4. Bien entendu, ces différents conduits sont prévus pour communiquer entre eux lors du montage de ces différents éléments. L'alésage 23 est taraudé pour recevoir par vissage la vanne 12. Ainsi, lors du montage, on visse d'abord le couvercle de vanne 13 dans l'alésage 23 du moyeu, puis on place la roue sur le moyeu et le moyen d'obturation est amené en position ouverte en s' appliquant sur le siège 14 comme représenté sur la figure. Le fonctionnement du circuit de fluide est le suivant.In FIG. 2, which represents an enlarged partial view of FIG. 1, it can be seen that the fluid circuit between the source 10 and the tire comprises, in addition to the conduits 17 and 18, a first axial conduit 20 followed by a radial conduit 21 and a second axial duct 22 formed in the seat 14, an axial bore 23 and a radial duct 24 formed in the hub 5, a slot 25 delimiting the internal cage 8 in two parts, a conduit 26 formed in the outer cage 7 and a conduit 27 formed in the shaft 4. Of course, these different conduits are provided to communicate with each other during the mounting of these different elements. The bore 23 is tapped to receive the valve 12 by screwing. Thus, during assembly, we screw first the valve cover 13 in the bore 23 of the hub, then the wheel is placed on the hub and the sealing means is brought into the open position by applying to the seat 14 as shown in the figure. The operation of the fluid circuit is as follows.
Pour alimenter en fluide sous pression le pneumatique 3 à l'aide de la source 10, on commande de façon connue le passage de l'air qui traversera successivement le conduit 27, le joint tournant 9, la fente 25, le conduit 24, la vanne 12, les conduits 22, 21 et 20, le moyen d'obturation 19 qui se trouve alors en position ouverte, le conduit 18 et enfin le conduit 17. Si on souhaite dégonfler le pneumatique 3, on commande le circuit décrit précédemment en dépression à l'aide de moyen adéquat. Les moyens de commande en gonflage et en dégonflage peuvent ceux décrits dans le brevet FR-2731655. Ils peuvent être utilisés tel que sans modification notable. Il n'est donc pas nécessaire de les décrire en détail.To supply pressurized fluid to the tire 3 using the source 10, the passage of air which will successively pass through the duct 27, the rotary joint 9, the rotary joint 25, the slot 25, the duct 24, is controlled in a known manner. valve 12, the conduits 22, 21 and 20, the sealing means 19 which is then in the open position, the conduit 18 and finally the conduit 17. If it is desired to deflate the tire 3, the circuit described above is controlled under vacuum using adequate means. The inflation and deflation control means can be those described in patent FR-2731655. They can be used as is without significant modification. It is therefore not necessary to describe them in detail.
Bien entendu, des joints d'étanchéité sont prévus pour éviter les fuites éventuelles et maintenir la pression dans le pneumatique à la valeur désirée.Of course, seals are provided to prevent possible leaks and maintain the pressure in the tire at the desired value.
Sur la figure 3, on a représenté en coupe un exemple de réalisation du moyen obturateur 19. Celui-ci comprend un pion 30 dont l'extrémité libre est en appui sur le siège 14 et qui prolongé à l'autre extrémité par une partie tronconique 31 sur laquelle agit un élément élastique 32, par exemple un ressort hélicoïdal. Ce ressort 32 est par exemple appliqué contre le fond du conduit 18. Au niveau de l'embouchure du conduit 18, un arrêtoir 33 est muni d'un évasement conique 34 de même configuration que la partie 31. L'arrêtoir 33 est maintenu en place à l'aide d'un insert 35 fixé sur la jante 4. Des joints toriques 36 sont intégrés dans la jante 4 et le siège 14 pour assurer l'étanchéité entre l' insert 35, la jante 4 et le siège 14. Le fonctionnement est le suivant. L'obturateur 19 ne laisse passer l'air (dans un sens ou dans l'autre) que lorsque le siège 14 actionne le doigt 30, c'est-à-dire lorsque la vanne est montée sur la jante, permettant ainsi la circulation de l'air entre le conduit 21 issu de la vanne 12 et le conduit 17 communiquant avec le pneumatique 3. Lorsque la jante est démontée, le ressort 32 pousse le doigt 30 vers l'extérieur du perçage 18, de façon à ce que la partie 31 vienne en contact intime avec la surface conique 34. Dans cette configuration, le pneumatique 3 est maintenu sous pression par fermeture du circuit et les opérations d'équilibrage ou d'intervention sur le moyen sont possibles sans perte de pression. Un des rôles de l' insert 35 étant d'assurer l'étanchéité du système entre le moment où le doigt 30 est actionné et le moment où la vanne est fixée de manière totalement étanche sur la jante. De la même manière, lors du démontage, l' insert 35 assure l'étanchéité du système entre le début du démontage et le moment ou la partie 31 assure la fermeture totale de l'obturateur. Sur la figure 4, on a représenté une variante de réalisation dans laquelle le moyen d'obturation est disposé en position radiale. Le doigt 30 est alors disposé dans le conduit radial 17 ainsi qu'un arrêtoir 40 muni d'une surface conique, le ressort 32 en appui sur une butée 41 fixée dans le conduit 17. Le siège 14 prolongé par un filetage 43 apte à être vissé sur la jante 2 dans un alésage 46 fermé côté extérieur et est muni d'une rampe 48 sur laquelle le doigt 30 vient en appui. Ce siège 14 est percé d'un conduit radial 44 et d'un conduit axial 45 communiquant entre eux. Le conduit radial 44 communique avec une chambre 54 délimitée par la jante 2 et le siège 14, communiquant elle-même avec le conduit radial 17. Le conduit axial 45 communique avec le corps de vanne 13. Cette vanne est isolée dans son logement de manière classique dans le moyeu 5, par exemple à l'aide d'un joint torique 49. Un joint torique 47 inséré dans un logement pratiqué dans la jante assure l'étanchéité entre celle-ci et le siège 14. Dans cette configuration, on voit que la jante est complètement fermée n'offrant aucune prise sur la vanne 12 qui est alors fixée sur celle-ci par vissage du filetage 43 dans l'alésage 46. Le montage dans ce cas est plus compact que dans le cas précédent. Il n'est plus nécessaire d'indexer la vanne. Sur la figure, on voit encore qu'une rondelle 50, dite Belleville, assure le bridage de la vanne 12 et son maintien en position. Dans cet exemple de réalisation, la vanne 12 n'est pas vissée dans le moyeu 5 mais est liée par friction dans l'alésage 23.In Figure 3, there is shown in section an embodiment of the shutter means 19. This comprises a pin 30 whose free end is supported on the seat 14 and which extended at the other end by a frustoconical part 31 on which an elastic element 32 acts, for example a helical spring. This spring 32 is for example applied against the bottom of the conduit 18. At the mouth of the conduit 18, a stop 33 is provided with a conical flare 34 of the same configuration as the part 31. The stop 33 is maintained in place using an insert 35 fixed to the rim 4. O-rings 36 are integrated in the rim 4 and the seat 14 to seal between the insert 35, the rim 4 and the seat 14. The operation is as follows. The shutter 19 lets air pass (in one direction or the other) only when the seat 14 actuates the finger 30, that is to say when the valve is mounted on the rim, thus allowing circulation air between line 21 coming from the valve 12 and the conduit 17 communicating with the tire 3. When the rim is disassembled, the spring 32 pushes the finger 30 towards the outside of the bore 18, so that the part 31 comes into intimate contact with the conical surface 34. In this configuration, the tire 3 is kept under pressure by closing the circuit and the balancing or intervention operations on the means are possible without loss of pressure. One of the roles of the insert 35 being to ensure the sealing of the system between the moment when the finger 30 is actuated and the moment when the valve is fixed in a completely sealed manner on the rim. Similarly, during disassembly, the insert 35 seals the system between the start of disassembly and the moment when the part 31 ensures the complete closure of the shutter. In Figure 4, there is shown an alternative embodiment in which the closure means is arranged in a radial position. The finger 30 is then placed in the radial duct 17 as well as a retainer 40 provided with a conical surface, the spring 32 bearing on a stop 41 fixed in the duct 17. The seat 14 extended by a thread 43 capable of being screwed onto the rim 2 in a bore 46 closed on the outer side and is provided with a ramp 48 on which the finger 30 comes to bear. This seat 14 is pierced with a radial duct 44 and an axial duct 45 communicating with one another. The radial duct 44 communicates with a chamber 54 delimited by the rim 2 and the seat 14, which in turn communicates with the radial duct 17. The axial duct 45 communicates with the valve body 13. This valve is isolated in its housing so conventional in the hub 5, for example using an O-ring 49. An O-ring 47 inserted in a housing formed in the rim provides sealing between the rim and the seat 14. In this configuration, we see that the rim is completely closed offering no grip on the valve 12 which is then fixed thereon by screwing the thread 43 in the bore 46. The mounting in this case is more compact than in the previous case. It is no longer necessary to index the valve. In the figure, we can still see that a washer 50, called Belleville, ensures the clamping of the valve 12 and keeping it in position. In this exemplary embodiment, the valve 12 is not screwed into the hub 5 but is linked by friction in the bore 23.
Le fonctionnement est le suivant. Lorsque la jante est démontée la vanne reste fixée à celle-ci et il suffit alors de dévisser la vanne pour la séparer de la jante pour effectuer des opérations d'équilibrage. Au fur et à mesure que l'on dévisse la vanne le doigt 30 parcourt la rampe 48 et il vient s'appliquer contre la surface conique de l'arrêtoir 40 en fermant le circuit de fluide. De la même manière, lors du vissage de la vanne, le doigt 30 parcourt la rampe 48 et il s'éloigne de la surface conique de l'arrêtoir 40 en ouvrant le circuit de fluide.The operation is as follows. When the rim is disassembled, the valve remains attached to it and it then suffices to unscrew the valve to separate it from the rim for balancing operations. As the valve is unscrewed, the finger 30 travels along the ramp 48 and it comes to bear against the conical surface of the retainer 40 by closing the fluid circuit. In the same way, when the valve is screwed on, the finger 30 travels along the ramp 48 and it moves away from the conical surface of the stopper 40 by opening the fluid circuit.
Sur la figure 5, on a représenté le montage d'une vanne 12 présentant une configuration identique à celle de la figure 4 à l'exception du siège 14. Dans cette réalisation la jante 2 est ouverte vers l'extérieur, c'est-à-dire qu'elle présente un trou 51 aligné avec l'alésage 23 du moyeu. Le siège 14 est percé d'un conduit radial 52 et d'un conduit axial 53 communiquant entre eux. Comme dans le cas précédent, le conduit 53 communique avec la vanne 12 et le conduit 52 communique avec une chambre 54 délimitée par la jante 2, le siège 14 et un capuchon 55. Ce capuchon est vissé sur l'embout du couvercle et est ajusté dans la jante 2 de manière étanche à l'aide d'un joint torique 56. Ce capuchon comporte une rampe 57 sur laquelle le doigt de l'obturateur vient en contact. Ce capuchon réalise donc d'une part l'étanchéité de la chambre 54 vers l'extérieur et d'autre part le maintien de l'ouverture de l'obturateur 19. Un autre joint torique 58 assure l'étanchéité entre le siège 14 et la jante 2. La vanne 12 est fixée sur la jante par friction et c'est le capuchon 55 qui assure la fixation partielle. Cette fixation est suffisante pour maintenir la vanne est la préserver des sollicitations lors des opérations de manutention. La fixation totale est assurée par un élément élastique 50 type rondelle Belleville. Le corps de vanne est lui aussi fixé par friction dans le moyeu 5. Le montage est le suivant. On commence par introduire la vanne 12 dans la jante 2, puis on introduit le capuchon 55 par vissage sur le couvercle. Au fur et à mesure du vissage, suivant trois filets par exemple, la rampe 57 repousse le doigt de l'obturateur 19 qui vient ouvrir le circuit d'alimentation du pneumatique. Le système est prêt à fonctionner, on peut monter la roue sur le moyeu. Un desserrage du capuchon (quelques tours) permet de fermer le conduit tout en maintenant la vanne en place. Une variante de mise en œuvre est illustrée par la figureFIG. 5 shows the mounting of a valve 12 having a configuration identical to that of FIG. 4 with the exception of the seat 14. In this embodiment the rim 2 is open towards the outside, that is to say that is, it has a hole 51 aligned with the bore 23 of the hub. The seat 14 is pierced with a radial duct 52 and an axial duct 53 communicating with each other. As in the previous case, the conduit 53 communicates with the valve 12 and the conduit 52 communicates with a chamber 54 delimited by the rim 2, the seat 14 and a cap 55. This cap is screwed onto the end piece of the cover and is adjusted in the rim 2 in a leaktight manner using an O-ring 56. This cap comprises a ramp 57 on which the finger of the shutter comes into contact. This cap therefore realizes on the one hand the sealing of the chamber 54 towards the outside and on the other hand the maintenance of the opening of the shutter 19. Another O-ring 58 ensures the sealing between the seat 14 and the rim 2. The valve 12 is fixed to the rim by friction and it is the cap 55 which provides the partial fixing. This fixing is sufficient to maintain the valve and preserve it from stresses during handling operations. Total fixing is ensured by an elastic element 50 such as a Belleville washer. The valve body is also fixed by friction in the hub 5. The assembly is as follows. We start by introducing the valve 12 into the rim 2, then we introduce the cap 55 by screwing on the cover. As the screwing progresses, using three threads for example, the ramp 57 pushes the finger of the shutter 19 which opens the tire supply circuit. The system is ready to work, you can mount the wheel on the hub. Loosening the cap (a few turns) closes the pipe while holding the valve in place. An implementation variant is illustrated in the figure
6 en complément du mode de réalisation suivant la figure 1. Dans cette réalisation, la vanne 12 est fixée non plus sur le moyeu 5 mais sur la jante 2. Le siège 14 de la vanne est fixé sur la jante 2 par l'intermédiaire d'un insert tubulaire 60 rapporté sur la jante. La fixation du couvercle est assurée par des éléments de liaison appropriés, par exemple trois vis de pression se situant dans les logements 62 adaptés à ce type de fixation.6 in addition to the embodiment according to FIG. 1. In this embodiment, the valve 12 is no longer fixed on the hub 5 but on the rim 2. The seat 14 of the valve is fixed on the rim 2 by means of 'A tubular insert 60 attached to the rim. The fixing of the cover is ensured by suitable connecting elements, for example three pressure screws located in the housings 62 adapted to this type of fixing.
La vanne 12 vient alors se loger dans l'alésage du moyeu 5, elle réalise une friction. Un élément élastique, type rondelle Belleville assure le bridage de la vanne 12.The valve 12 is then housed in the bore of the hub 5, it produces friction. An elastic element, Belleville washer type, clamps the valve 12.
L'invention n'est pas limitée aux exemples décrits et représentés car diverses modifications peuvent y être apportées sans sortir de son cadre. The invention is not limited to the examples described and shown since various modifications can be made thereto without departing from its scope.

Claims

REVENDICATIONS
1. Dispositif auto-obturant du pneumatique d'une roue de véhicule équipée d'une vanne de gonflage et de dégonflage du pneumatique tout en assurant son alimentation en air comprimé à l'aide d'un circuit sous pression ou dépression, caractérisé en ce que la vanne (12) est disposée entre la roue (2) et le moyeu (5) de la roue et en ce qu'il comprend un moyen d'obturation (19) intégré dans le circuit d'alimentation de la roue, ledit moyen (19) étant actionné en position ouverte en présence de la vanne et en position fermée en l'absence de la vanne.1. Self-sealing device for the tire of a vehicle wheel fitted with an inflation and deflating valve for the tire while ensuring its supply of compressed air using a pressure or vacuum circuit, characterized in that that the valve (12) is disposed between the wheel (2) and the hub (5) of the wheel and in that it comprises a shutter means (19) integrated in the supply circuit of the wheel, said means (19) being actuated in the open position in the presence of the valve and in the closed position in the absence of the valve.
2. Dispositif auto-obturant selon la revendication 1, caractérisé en ce que le moyen d'obturation (19) est constitué d'un doigt (30) prolongé par une partie tronconique (31), mobile sous l'action d'un ressort (32) à l'intérieur d'un alésage (18) pratiqué dans le circuit d'alimentation de la roue, ladite partie tronconique (31) étant apte à s'appliquer sur un siège (33) présentant un profil tronconique sous l'action du ressort pour fermer le circuit d'alimentation de la roue.2. Self-sealing device according to claim 1, characterized in that the closure means (19) consists of a finger (30) extended by a frustoconical part (31), movable under the action of a spring (32) inside a bore (18) formed in the wheel supply circuit, said frustoconical part (31) being able to be applied to a seat (33) having a frustoconical profile under the spring action to close the wheel supply circuit.
3. Dispositif auto-obturant selon la revendication 1 ou 2, caractérisé en ce que la vanne (12) est constituée d'un couvercle de vanne (13) et d'un siège (14) et en ce qu'elle forme un boîtier délimité par le moyeu (5) et le couvercle, munis tous deux de moyens de communication pour permettre l'alimentation en air comprimé de la roue (1) à partir d'un joint tournant (9), le siège (14) étant disposé au niveau de la roue et le couvercle de vanne (13) au niveau du moyeu supportant la roue. 3. Self-sealing device according to claim 1 or 2, characterized in that the valve (12) consists of a valve cover (13) and a seat (14) and in that it forms a housing delimited by the hub (5) and the cover, both provided with communication means to allow the supply of compressed air to the wheel (1) from a rotary joint (9), the seat (14) being arranged at the wheel and the valve cover (13) at the hub supporting the wheel.
4. Dispositif auto-obturant selon l'une quelconque des revendication précédente, caractérisé en ce que l'axe de symétrie de la vanne est confondu avec l'axe de révolution XX' de la roue.4. Self-sealing device according to any one of the preceding claim, characterized in that the axis of symmetry of the valve coincides with the axis of revolution XX 'of the wheel.
5. Dispositif auto-obturant selon la revendication 4, caractérisé en ce que le moyen d'obturation (19) est disposé pour agir axialement par rapport à la roue. 5. Self-sealing device according to claim 4, characterized in that the shutter means (19) is arranged to act axially with respect to the wheel.
6. Dispositif auto-obturant selon la revendication 5, caractérisé en ce que la vanne (12) est vissée dans le moyeu (5) .6. Self-sealing device according to claim 5, characterized in that the valve (12) is screwed into the hub (5).
7. Dispositif auto-obturant selon la revendication 6, caractérisé en ce que le siège (14) est muni d'un organe d'indexation (15) par rapport au moyeu.7. Self-sealing device according to claim 6, characterized in that the seat (14) is provided with an indexing member (15) relative to the hub.
8. Dispositif auto-obturant selon la revendication 7, caractérisé en ce que l'organe d'indexation (15) est une vis.8. Self-sealing device according to claim 7, characterized in that the indexing member (15) is a screw.
9. Dispositif auto-obturant selon la revendication 4, caractérisé en ce que le moyen d'obturation (19) est disposé pour agir radiale ent par rapport à la roue (2) .9. Self-sealing device according to claim 4, characterized in that the shutter means (19) is arranged to act radially with respect to the wheel (2).
10. Dispositif auto-obturant selon la revendication 9, caractérisé en ce que le siège (14) de la vanne est munie d'un prolongement (43) sensiblement tronconique destiné à coopérer avec le moyen d' obturation, ledit prolongement étant muni de moyens de communication (44, 45) entre la vanne (12) et la roue (1), et en ce que la jante (2) de la roue (1) est fermée extérieurement.10. Self-sealing device according to claim 9, characterized in that the seat (14) of the valve is provided with an extension (43) substantially frustoconical intended to cooperate with the closure means, said extension being provided with means communication (44, 45) between the valve (12) and the wheel (1), and in that the rim (2) of the wheel (1) is closed externally.
11. Dispositif auto-obturant selon la revendication 10, caractérisé en ce que le couvercle de vanne (13) est engagé par friction dans le moyeu (5) .11. Self-sealing device according to claim 10, characterized in that the valve cover (13) is engaged by friction in the hub (5).
12. Dispositif auto-obturant selon la revendication 9, caractérisé en ce que le siège (14) est muni d'un prolongement (sensiblement cylindrique coiffé par un bouchon (55) muni d'une rampe (57) destinée à coopérer avec le moyen d'obturation (19), ledit bouchon étant vissé sur ledit prolongement, et en ce que la roue (1) est ouverte extérieurement .12. Self-sealing device according to claim 9, characterized in that the seat (14) is provided with an extension (substantially cylindrical capped by a plug (55) provided with a ramp (57) intended to cooperate with the means shutter (19), said plug being screwed onto said extension, and in that the wheel (1) is open externally.
13. Dispositif auto-obturant selon les revendications 10 à 12, caractérisé en ce qu'il comporte des moyens d'étanchéité disposés de manière à assurer une dépressurisation progressive de la chambre (54) lors du démontage de la vanne .13. Self-sealing device according to claims 10 to 12, characterized in that it comprises sealing means arranged so as to ensure progressive depressurization of the chamber (54) during disassembly of the valve.
14. Dispositif auto-obturant selon la revendication 5, caractérisé en ce que le siège (14) est fixé sur la jante14. Self-sealing device according to claim 5, characterized in that the seat (14) is fixed to the rim
(2) .(2).
15. Dispositif auto-obturant selon la revendication 14, caractérisé en ce que la jante est munie d'un insert tubulaire (60) sur lequel est fixée la vanne, à l'aide de vis de pression (61) .15. Self-sealing device according to claim 14, characterized in that the rim is provided with an insert tubular (60) on which the valve is fixed, using pressure screws (61).
16. Dispositif auto-obturant selon l'une des revendications précédentes, caractérisé en ce qu'il comporte des moyens d'étancheite disposés de manière à assurer une étanchéité totale aussi longtemps que le moyen d'obturation n'est pas entièrement fermé. 16. Self-sealing device according to one of the preceding claims, characterized in that it comprises sealing means arranged so as to ensure total sealing as long as the sealing means is not fully closed.
EP03745314A 2002-03-29 2003-03-20 Tyre self-sealing device for the wheel of a vehicle Withdrawn EP1490240A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0204031A FR2837747B1 (en) 2002-03-29 2002-03-29 SELF-CLOSING DEVICE FOR THE TIRE OF A VEHICLE WHEEL
FR0204031 2002-03-29
PCT/FR2003/000894 WO2003082612A1 (en) 2002-03-29 2003-03-20 Tyre self-sealing device for the wheel of a vehicle

Publications (1)

Publication Number Publication Date
EP1490240A1 true EP1490240A1 (en) 2004-12-29

Family

ID=27839356

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03745314A Withdrawn EP1490240A1 (en) 2002-03-29 2003-03-20 Tyre self-sealing device for the wheel of a vehicle

Country Status (6)

Country Link
US (1) US20050205182A1 (en)
EP (1) EP1490240A1 (en)
AU (1) AU2003232296A1 (en)
BR (1) BR0303654A (en)
FR (1) FR2837747B1 (en)
WO (1) WO2003082612A1 (en)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4296436B2 (en) * 2006-01-19 2009-07-15 トヨタ自動車株式会社 Tire pressure introduction device
JP4296437B2 (en) * 2006-01-25 2009-07-15 トヨタ自動車株式会社 Tire pressure introduction device
DE102006006143A1 (en) * 2006-02-10 2007-08-23 Schaeffler Kg Sealing arrangement for a tire pressure regulating device
US8006731B2 (en) * 2006-12-22 2011-08-30 Hutchinson S.A. Apparatus and system for integration of a central tire inflation valve into a wheel
DE102007058036A1 (en) * 2007-02-06 2008-08-28 Fereshteh Saadat Vehicle rim with central valve
US20090205764A1 (en) * 2008-02-15 2009-08-20 Am General Llc Tire inflation system
US8069890B2 (en) * 2008-04-25 2011-12-06 Hutchinson S.A. Hub bore mounted central tire inflation valve system
US7690412B1 (en) * 2008-11-04 2010-04-06 Arvinmeritor Technology, Llc Drive axle with air passage for tire inflation system
WO2013125395A1 (en) * 2012-02-21 2013-08-29 横浜ゴム株式会社 Wheel and air pressure adjustment device
US10059156B2 (en) 2012-04-09 2018-08-28 Dana Heavy Vehicle Systems Group, Llc Hub assembly for a tire inflation system
CN102785537A (en) * 2012-08-27 2012-11-21 贵州航天红光机械制造有限公司 Automatic inflating and deflating device for tyre of special vehicle
GB201313622D0 (en) * 2013-07-30 2013-09-11 Jaguar Land Rover Ltd Vehicle wheel assembly
US9333813B2 (en) * 2013-08-13 2016-05-10 Arvinmeritor Technology, Llc Tire inflation system having a passage for routing pressurized gas through a flange
US9162539B2 (en) * 2014-01-24 2015-10-20 American Axle & Manufacturing, Inc. Axle assembly having wheel hubs configured for use in vehicle with central tire inflation system
US9352621B2 (en) * 2014-07-15 2016-05-31 Arvinmeritor Technology, Llc Tire inflation system having a pressure relief valve
WO2016011101A1 (en) * 2014-07-15 2016-01-21 Dana Heavy Vehicle Systems Group, Llc Rotary joint assembly for a tire pressure management system
EP3201013B1 (en) * 2014-10-01 2018-08-29 Bayerische Motoren Werke Aktiengesellschaft Assembly and method for the compressed air supply of a wheel of a vehicle
GB2534845B (en) * 2015-01-28 2018-11-14 Jaguar Land Rover Ltd Vehicle wheel assembly
EP3127719A1 (en) * 2015-08-06 2017-02-08 Dana Heavy Vehicle Systems Group, LLC Rotary joint assembly for a tire inflation system
DE102016205007A1 (en) * 2016-03-24 2017-09-28 Bayerische Motoren Werke Aktiengesellschaft Compressed air supply device for a vehicle tire
US10479150B2 (en) 2016-06-27 2019-11-19 Dana Heavy Vehicle Systems Group, Llc Wheel valve assembly and the tire inflation system made therewith
US10576794B2 (en) 2016-09-14 2020-03-03 Dana Heavy Vehicle Systems Group, Llc Wheel valve assembly with vent to atmosphere and the tire inflation system made therewith
IT201700085893A1 (en) * 2017-07-27 2019-01-27 Trelleborg Wheel Sys Italia Spa Rotating manifold and tire pressure adjustment system.
DE102018100955B4 (en) 2018-01-17 2024-01-18 Illinois Tool Works Inc. SYSTEM FOR TRANSMITTING CONTROL AND/OR WORKING PRESSURES
US11951779B2 (en) * 2018-01-17 2024-04-09 Illinois Tool Works Inc. System for transmitting control pressures and/or working pressures

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2667826B1 (en) 1990-10-12 1993-01-22 Fazekas Stephane DEVICE FOR TRANSFERRING RELATIVE PRESSURE FLUID IN A SYSTEM FOR REGULATING THE INFLATION PRESSURE OF A ROLLING VEHICLE TIRE.
FR2731655B1 (en) 1995-03-16 1997-07-25 Giat Ind Sa INSTALLATION FOR REMOTE CONTROL OF THE INFLATION-DEFLATION OF THE TIRE OF A VEHICLE WHEEL
AT3054U1 (en) * 1998-09-11 1999-09-27 Steyr Daimler Puch Ag WHEEL UNIT FOR A MOTOR VEHICLE WITH TIRE INFLATION SYSTEM

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03082612A1 *

Also Published As

Publication number Publication date
WO2003082612A1 (en) 2003-10-09
BR0303654A (en) 2004-07-13
FR2837747A1 (en) 2003-10-03
US20050205182A1 (en) 2005-09-22
AU2003232296A1 (en) 2003-10-13
FR2837747B1 (en) 2004-07-09

Similar Documents

Publication Publication Date Title
EP1490240A1 (en) Tyre self-sealing device for the wheel of a vehicle
EP0777049B1 (en) Pump connection device
EP0511135B1 (en) Pneumatic regulation device for the automatic inflation/deflation and the measurement of pressure within a closed volume of gaseous fluid under relative pressure (e.g. a tyre)
FR2476222A1 (en) ROTARY FUEL PUMP WITH ELECTRIC MOTOR INCORPORATES
WO2002081235A1 (en) Inflation circuit, in particular for a tyre mounted on a wheel and corresponding wheel
FR2750082A1 (en) HUB ASSEMBLY AND HUB HOLDER FOR VEHICLE EQUIPPED WITH A CENTRALIZED INFLATION SYSTEM
FR2886214A1 (en) Rim for motor vehicle wheel, has closing device for closing openings of circular body of rim, where device has closing units movably mounted on body, and actuating units to actuate closing units
FR2731655A1 (en) Remote control for inflation or deflation of vehicular pneumatic tyre
EP0268520A2 (en) Check valve for a pressure fluid circuit in a combustion engine
FR2841322A1 (en) CONNECTION FOR INFLATION DEVICE COMPATIBLE WITH MULTIPLE TYPES OF VALVES
FR2834245A1 (en) DEVICE FOR MOUNTING A SENSOR ON A WHEEL RIM AND CORRESPONDING METHOD
FR2586970A1 (en) DEVICE FOR ADJUSTING THE PRESSURE OF A TIRE ON A VEHICLE ON THE MARK
FR2829063A1 (en) Mounting device for sensor on automobile wheel rim comprises traction part, with position locking part, and case, receiving sensor, articulated on rim and having stops in contact with rim
EP0041511B1 (en) Reference pressure comparator device for a vehicle tyre with remote display
FR2787064A1 (en) Non-return valve in rim of bicycle wheel is used for inflation of tubeless tire and has T-shaped end engaging in countersunk hole in partition in rim
FR3068300B1 (en) IMPROVED HYDRAULIC APPARATUS COMPRISING A CONDUIT FOR AIR CIRCULATION
FR2821140A1 (en) PILOTED PNEUMATIC VALVE
EP2090818B1 (en) Plug for the filling valve body of an automobile air-conditioning circuit
EP0869279A1 (en) Spring-loaded brake with mecanical brake release device
FR2897015A1 (en) Motor vehicle, has tire re-inflating system in communication with tire rolling state monitoring device such that re-inflating system is activated in event of detection of tire puncture state
EP0242297B1 (en) Active organ support unit on an automotive vehicle wheel rim, connection and active support for this unit
WO2000076793A1 (en) Wheel having a tyre equipped with inflating means activated by the wheel rotation
FR2896724A1 (en) Motor vehicle wheel hub valve for inflating, deflating and monitoring tire pressure has membrane with outer rigid, central perforated and elastic sections
EP3645328A1 (en) Improved steering pivot pin forming an internal pneumatic passage
EP1608903B1 (en) Inflating and deflating valve

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20040904

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Effective date: 20060120