WO2017092929A1 - Adapter for a wheeled assembly and a wheeled assembly comprising same - Google Patents

Adapter for a wheeled assembly and a wheeled assembly comprising same Download PDF

Info

Publication number
WO2017092929A1
WO2017092929A1 PCT/EP2016/075551 EP2016075551W WO2017092929A1 WO 2017092929 A1 WO2017092929 A1 WO 2017092929A1 EP 2016075551 W EP2016075551 W EP 2016075551W WO 2017092929 A1 WO2017092929 A1 WO 2017092929A1
Authority
WO
WIPO (PCT)
Prior art keywords
adapter
rim
tire
adapter according
equal
Prior art date
Application number
PCT/EP2016/075551
Other languages
French (fr)
Inventor
Daniel Walser
Antonio Delfino
Original Assignee
Compagnie Generale Des Etablissements Michelin
Michelin Recherche Et Technique S.A.
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 Compagnie Generale Des Etablissements Michelin, Michelin Recherche Et Technique S.A. filed Critical Compagnie Generale Des Etablissements Michelin
Publication of WO2017092929A1 publication Critical patent/WO2017092929A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B5/00—Wheels, spokes, disc bodies, rims, hubs, wholly or predominantly made of non-metallic material
    • B60B5/02—Wheels, spokes, disc bodies, rims, hubs, wholly or predominantly made of non-metallic material made of synthetic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B25/00—Rims built-up of several main parts ; Locking means for the rim parts
    • B60B25/22—Other apurtenances, e.g. for sealing the component parts enabling the use of tubeless tyres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B23/00—Attaching rim to wheel body
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2900/00—Purpose of invention
    • B60B2900/30—Increase in
    • B60B2900/311—Rigidity or stiffness
    • 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
    • B60C15/00—Tyre beads, e.g. ply turn-up or overlap
    • B60C15/02—Seating or securing beads on rims

Definitions

  • the invention relates to an adapter for a roller assembly formed mainly of a tire and a rim, and a roller assembly comprising said adapter.
  • the adapter and the roller assembly of the invention are preferably used in the field of tires for light vehicles, such as tourism and pickup truck, but still for heavy goods vehicles, for civil and agricultural tires.
  • Ring direction direction intersecting the axis of rotation of the tire and perpendicular to it
  • Croferential direction direction perpendicular to a radius and lying in a plane perpendicular to the axis of rotation of the tire
  • Ring section section along a plane which contains the axis of rotation of the tire
  • Equatorial plane plane perpendicular to the axis of rotation and which passes through the middle of the tread
  • Assembly an assembly comprising a tire, a steel or aluminum rim and the adapter according to the invention.
  • US 1 250 405 A discloses a tire comprising three vulcanized zones to form a pneumatic tire in the form of a flattened arch, a inner support and an elastic heart. This document gives no details on the ratio (Width W) / (width of the adapter L).
  • WO 2013/045618A1 discloses a lightened wheel comprising a carbon-reinforced plastic rim and a light metal wheel star.
  • CA2 281 651 discloses a tire and a mounted assembly comprising it. The tire comprises a mounting base on the rim and means for locking the tire on the rim.
  • GB 2 039 831 discloses a mounted assembly comprising a tire and a rim that does not include any removable portion. Also it remains the need to transform the ferrule disclosed in WO02 / 068223 to confer in addition an aptitude for vertical flexibility thus minimizing the partial damage, or total, its internal structure, while maintaining a high level tire performance of the tire, especially its ability to develop significant drift. In addition, at least, in case of damage due to abnormally severe use of the tire, it is to secure the vehicle by moving a short distance following a destructive shock of the mounted assembly.
  • the invention therefore relates to an adapter for a rolling assembly having an axis of rotation comprising a tire having two beads, a rim having a rim groove disposed between two rim seats each having an axially outer end, said rim having a total width W between each axially outer end of said two rim seats, said adapter ensuring the junction between each bead and each rim seat, said adapter having: two axially outer ends each comprising an adapter seat and a bearing surface; an adapter substantially in a plane perpendicular to the axis of rotation, a body connecting said two outer axial ends so as to form a unitary piece and comprising at least one main reinforcing armature, said adapter having a total axial width L between each adapter seat, and - a face intended to be in contact with each rim seat and with the rim groove, and disposed radially inward, the ratio W / L being greater than or equal to 20% and less than or equal to 60% and, said body comprising a locking element
  • the isotropic material may be disposed continuously or discontinuously.
  • the axially outer end of the adapter defines, axially, a "housing for receiving the bead of the tire.”
  • the bearing surface of the axially outer end serves to support, in the axial direction, the bead of the tire like a rim hook.
  • the housing receives the tire bead just as conventionally the seat of a rim.
  • the tire is then immobilized axially by the inflation pressure, and is pressed against the bearing surface of this axially outer end, as is conventionally done for the bead of a tire against the rim hook d. a rim.
  • the tire is immobilized axially with respect to the rim, more precisely the beads of the tire are immobilized axially with respect to the rim in the same way as for a conventional roller assembly in which the beads of the tire are mounted directly on the seats of a rim, whereas the beads of the tire are not immobilized radially relative to the rim, more precisely the beads of the tire are capable of a degree of displacement radially relative to the rim.
  • standard rolling it can be said that there is almost no axial deformation of the adapter, or it is negligible compared to the radial deformation.
  • the axial deformation of the adapter can be important, thereby helping to reduce the constraints on the mounted assembly.
  • the isotropic material allows, on the one hand, to give the adapter according to the invention its final overall shape, on the other hand, to transmit the mechanical forces between the tire and the rim, and finally to improve comfort in the passenger compartment by reducing noise pollution.
  • the isotropic material brought into contact with the rim preferably has a rigidity adapted to ensure the seal between the adapter and the rim, once mounted.
  • This type of material preferably also has a compatibility with the clamping pressures usually applied in this area of the assembled assembly, and a correct creep resistance.
  • the isotropic material according to the invention avoids the appearance of such effects.
  • an isotropic material having a modulus of elasticity at 10% deformation (MA10) of between 30 and 50MPa, higher than that of an elastomeric composition which is between 3 and lOMPa , in the adapter according to the invention improves the strength of the assembly mounted to compression forces supported by the assembly mounted.
  • modulus of elasticity of a material is meant the secant extension module obtained in tension according to ASTM D 412 of 1998 (test tube “C”): it is measured in second elongation (ie after an accommodation cycle), the apparent secant moduli at 10% elongation, denoted “MA 10" and expressed in MPa (normal conditions of temperature and humidity according to ASTM D 1349 of 1999).
  • This modulus of elasticity is to be distinguished from the modulus of elasticity obtained in compression and whose values are generally unrelated to the modules obtained in extension.
  • the body comprises a first and a second isotropic material, the first and second isotropic materials may be of the same or different chemical nature.
  • the adapter may comprise a third isotropic material.
  • This third material may be a foam that absorbs tire cavity noises.
  • the first and second isotropic materials have a modulus of 10%> deformation (MA10) between 3MPa and 800MPa independently of one another.
  • the first isotropic material includes the inner and outer reinforcement elements, and the second isotropic material covers all or part of the first isotropic material.
  • the first material has a 10% deformation modulus (MA10) between 250 MPa and 800 MPa and the second material has a 10% deformation modulus (MA10) between 3 MPa. and 50MPa.
  • the second material would function to protect the first material from external aggressions as well as to ensure more easily variations in geometry of the seals between the adapter and the tire, on the one hand, and between the adapter and the rim on the other hand.
  • the second isotropic material would also contribute to the adhesion between the tire, the adapter and the tire. This would prevent relative slippage during braking.
  • the particular choice of the second material would absorb a maximum of sound energy inside the tire, and thus reduce the cavity noise of the tire.
  • the second material could have a rigidity ranging from 10 to 30 times smaller than that of the first material which would include the inner and outer reinforcing elements.
  • the ratio W / L is greater than or equal to 25 and less than or equal to 50.
  • the adapter according to the invention has the advantage of being of simple constitution and of using a conventional assembly. and already known from a tire on a rim for mounting the tire on the adapter in comparison with the shell of WO02 / 068223, the mounting stages of which are different and which use in particular a depression.
  • This adapter also has the advantage of being non-removable unlike the device of WO02 / 068223 which is only removable and which excludes the use of a complementary fastening means, such as a hoop.
  • a connection between the adapter according to the invention and the rim groove must always remain during the various stages of assembly.
  • the tire is, at first, arranged on the shell, then this assembly is depressed, thanks to the elasticity of the shell, before being disposed on the rim by axial sliding, and finally put under its nominal pressure.
  • the depression during assembly leads to the non-contact of the ferrule and the rim. Therefore, to allow the correct maintenance of the tire on the rim after assembly, the rim must be as wide as possible so that after inflation, maximum effort can be exerted between the tire and the ferrule .
  • the total width W of the rim must be less than the total width L of the adapter so as to ensure that the adapter has sufficient elasticity to properly absorb the transfer of mechanical forces inherent in a shock. Such elasticity can not be obtained when the width of the rim is too great.
  • the ratio W / L as defined in the adapter according to the invention thus ensures a mounted and inflated assembly, on the one hand, a permanent and sufficient mechanical connection between the tire and the adapter, and on the other hand, a correct absorption of the mechanical forces inherent in a shock.
  • Another object of the invention is a rolling assembly consisting of a tire comprising two beads, a rim.
  • This assembly is characterized in that it comprises an adapter as defined above, the adapter ensuring the junction between each bead of the tire and each rim seat.
  • each outer axial end comprises an outer reinforcing element chosen from a metal (steel), nylon, PET, aramid. He can understand a matrix of resin and / or reinforcing fibers, such as rayon, aramid, PET, nylon, fiberglass, carbon fiber, basalt fiber, poly (ethylene-2,6-naphthalate) (PEN), polyvinyl alcohol (PVA).
  • the locking element may have a total axial length greater than or equal to 10% and less than or equal to 80%, and preferably greater than or equal to 30%> and less than or equal to 50% of the total width W of said rim.
  • This locking element is preferably present in the middle part of the adapter, the latter being intended to be inserted into the corresponding rim groove of the rim.
  • the blocking element may consist of one or more parts connected to each other or not.
  • the locking element may also be present near one of the axially outer ends or at any location on the body disposed between the middle position of the adapter and one of the axially outer ends.
  • the rim groove may also be arranged offset from the median of the rim. The rim would then have two rim seats of different lengths.
  • the locking element is inserted into the rim groove.
  • the groove can then be arranged on any possible location on one of the two crazy seats.
  • the locking element preferably comprises a reinforcement which has an extension module greater than 4GPa, and preferably greater than 12GPa.
  • This reinforcement may be selected from metal (steel), nylon, polyethylene terephthalate (PET), aramid.
  • the blocking member may comprise a resin matrix and / or reinforcing fibers such as rayon, aramid, PET, nylon, fiberglass, carbon fiber, basalt fiber, poly (2,6-ethylene naphthalate (PEN), polyvinyl alcohol (PVA), polyketones.
  • the locking element may be arranged at a length "1" located between a central axis YY 'passing through the center of said locking element and one of the support faces of said adapter.
  • the body of the adapter may comprise at least one protrusion.
  • This projection may be present at choice on an axially outer end or on both.
  • the projection is preferably made of an elastomer conventionally used in the field of the tire.
  • the position of the projection on the adapter according to the invention may advantageously resume the parametric conditions defined by ETRTO (the European Tire and Rim Technical Organization).
  • the width "A" of rim seat is greater than or equal to 10% of the width W of the rim.
  • the width "B" between the bearing face of an axially outer end of the adapter and the outer axial end of the rim seat closest to said bearing face is greater than or equal to 10% > the total width L of the adapter, and preferably greater than or equal to 15%. For the wheel of a passenger vehicle this width "B" is greater than or equal to 21mm.
  • the assembly between the rim and the adapter is made in force.
  • the adapter is therefore rendered indissociable from the rim, and therefore not removable.
  • the adapter can be glued cold or hot on the rim after a possible prior treatment of the metal constituting the rim.
  • the adapter is not removable. In other cases, it can be considered removable.
  • the adapter comprises at least one conductive strip, removable or not, disposed on all or part of the circumferential periphery of said adapter, and on a complete path from the adapter support face to the rim J
  • the presence of the conductive strip also makes it possible to ensure the conduction of electricity between the ground and the wheel, and therefore between the ground and the vehicle especially when the conductivity of the elastomeric compositions is not sufficient, and this especially as the tire does not rest directly on the wheel but on an adapter.
  • the conductive strip when removable or non-removable, it is disposed entirely on the radially outer surface of the body.
  • the conductive strip when the conductive strip is non-removable, it is partially buried under the radially outer surface of the body.
  • the conductive strip has an electrical resistivity of less than or equal to 10 8 ohm.cm, and preferably less than or equal to 10 7 ohm.cm.
  • the conductive strip consists of the choice of a metal blade or an elastomeric composition comprising carbon black in an amount greater than or equal to 15%.
  • the carbon black of the elastomer composition has a specific surface greater than or equal to 500m 2 / g.
  • the conductive strip when it is non-removable, it is bonded or crosslinked to the elastomeric composition of the body.
  • the rim may be made of a material selected from aluminum alloys and / or magnesium, composite materials based on carbon fibers, glass fibers, aramid fibers, vegetable fibers, said fibers being included in a matrix based on thermosetting compounds or thermoplastic compounds, or a complex compound comprising an elastomer and a complex based on resin and fibers selected from carbon fibers, glass fibers, aramid, plant fibers or from any combination of materials.
  • the fiber-based composite materials comprise fibers having a length greater than or equal to 5 mm.
  • thermosetting compounds chosen from epoxy resins, vinylester, unsaturated polyesters, cyanate ester, bismaleimide, acrylic resins, phenolic resins, polyurethanes and combinations thereof.
  • the matrix based on thermoplastic compounds is chosen from polypropylene (PP), polyethylene (PE), polyamides (PA), semi-aromatic polyamides, polyester (PET) and polybutylene terephthalate (PBT). , polyetheretherketone (PEEK), polyetherketoneketone (PEKK), polyethersulfone (PSU), polyetherimide (PEI), polyimide (PI), polyamideimide (PAI), polyphenylenesulfide (PPS), polyoxymethylene (POM), polyphenylene oxide (PPO).
  • PP polypropylene
  • PE polyethylene
  • PA polyamides
  • PET polyester
  • PBT polybutylene terephthalate
  • PEEK polyetheretherketone
  • PEKK polyetherketoneketone
  • PSU polyethersulfone
  • PEI polyetherimide
  • PI polyimide
  • PAI polyphenylenesulfide
  • POM polyoxymethylene
  • PPO polyphenylene oxide
  • FIG. 1 represents a schematic sectional view of an embodiment of the adapter according to the invention
  • FIG. 2 represents a schematic sectional view of an embodiment of the adapter according to the invention mounted on a rim
  • FIG. 3 represents a schematic sectional view of another embodiment of the adapter according to the invention.
  • FIG. 4 represents a schematic sectional view of a wheel assembly comprising the adapter according to the invention, a tire and a rim according to a first embodiment
  • FIG. 5 represents a schematic sectional view of a wheel assembly comprising the adapter according to the invention, a tire and a rim according to a second embodiment
  • FIG. 6 shows a schematic sectional view of a roller assembly comprising the adapter according to the invention, a tire and a rim according to a third embodiment.
  • the general reference adapter substantially linear in shape, comprises two axially opposite outer ends 2 each comprising an adapter seat 3 and a corresponding adapter support face 4 substantially included in a plane perpendicular to the axis of rotation of a tire.
  • a body 5 connects the two ends 2 so as to form a unitary piece.
  • the body comprises two isotropic materials 6, 7, a first 6 outside the adapter and a second 7 inside the adapter.
  • the adapter has a total axial width L equal to 190.5 mm measured between each support surface 4.
  • a face 16 may be delimited by surface markers and located radially on the inside of the adapter 1, is intended to be in contact with a throat 13 of the rim and squares 12 ( Figure 2).
  • the body 5 comprises in its middle part (represented by an axis XX ') a locking element 15 having a total axial length equal to 25% of the width L for a passenger vehicle wheel width 7.5 inches , ie 190.5 mm.
  • the locking element 15 is made of rubber which has an extension module equal to 50GPa.
  • the radially outer ends 2 each comprise an outer reinforcing element 10, also called a bead wire, made of a glass-resin composite material.
  • the adapter 1 is disposed on a rim 11 partially shown. This rim comprises two rim seats 12 separated by a rim groove 13.
  • the adapter comprises, in addition to the elements mentioned above, two projections 17 each disposed on the body 5, and whose centers are spaced a distance "d" d at least 21mm from the end of the bearing surface 4.
  • FIG. 4 shows a mounted assembly comprising a rim 11 of width W on which the adapter 1 is inserted and on which is inserted a conventional tire 17 by means of its beads 18.
  • the assembly of this assembly is carried out in a conventional and known manner by disposing in force the adapter on the rim so that the locking element 15 is inserted into the groove 13.
  • the beads 18 of the tire 17 are then each arranged on a seat 3 of the adapter 1.
  • the assembled assembly is then put under its nominal pressure.
  • the locking member 15 is disposed in the middle portion of the rim.
  • the locking member 15 is disposed offset from the central axis XX 'of the adapter but centrally relative to the central axis ZZ' of the rim . It is arranged at a distance "1" greater than or equal to (W / 2 + 21) mm for a wheel of width 7.5 inches, or 190.5mm.
  • the length "1" located between the center of the rim groove and the axially outer end of the adapter respects the physical constraints A> 5mm and B> 21mm, where A is the width of a rim seat and B the distance between the support face 4 an axially outer end of the adapter and an axial end 11A of a crazy seat.
  • This test consists of mounting a set mounted on a sidewalk at an angle of attack of 30 °. The choice of this angle is based on the fact that it constitutes a very penalizing stress for a tire. The test is carried out with two different sidewalk heights (90mm and 110mm).
  • the test carried out on the sidewalk height of 90 mm results in the puncture of the control tire at a speed of 30 km / h, whereas the assembly according to the invention undergoes no damage at this same speed, even at a speed of 50 km. / h.
  • the test performed on the sidewalk height of 110mm results in the puncture of the control tire at a speed of 20km / h, while the assembly according to the invention undergoes no damage at this same speed, even at a speed of 50km. / h.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Tires In General (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

The invention relates to an adapter for a wheeled assembly having a rotational axis and including a tire comprising two beads, a wheel rim having a wheel-rim groove (13) arranged between two wheel-rim seats (12), each having an axially outer end, said wheel rim having a total width W between each axially outer end of said two wheel-rim seats, said adapter forming the junction between each bead and each wheel-rim seat, said adapter having two axially outer ends (2) each including one adapter seat (3) and one adapter bearing surface (4) substantially in a plane perpendicular to the axis of rotation, a body (5) connecting said two outer axial ends (2) so as to form a single part and including at least one main reinforcement frame, one surface (16) intended to be in contact with each wheel-rim seat (12) and with the wheel-rim groove (13), and arranged radially inside said adapter having a total axial width L between each adapter seat (3), said adapter having a total axial width L between each wheel-rim seat (3), the W/L ratio being not less than 20% and not more than 60%, and said body (5) including a locking element (15) for setting said adapter in the wheel-rim groove (13). The body (5) further comprises at least one isotropic material selected from among polyurethane, nylon, polyethylene terephthalate, polybutadiene terephthalate and silicones.

Description

ADAPTATEUR POUR ENSEMBLE ROULANT ET ENSEMBLE  ADAPTER FOR ROLLING ASSEMBLY AND ASSEMBLY
ROULANT LE COMPRENANT  ROLLER COMPRISING IT
[0001] L'invention concerne un adaptateur pour ensemble roulant formé principalement d'un pneumatique et d'une jante, et un ensemble roulant comprenant ledit adaptateur. The invention relates to an adapter for a roller assembly formed mainly of a tire and a rim, and a roller assembly comprising said adapter.
[0002] L'adaptateur et l'ensemble roulant de l'invention sont de préférence utilisés dans le domaine des pneumatiques pour véhicules légers, tels que tourisme et camionnette, mais encore pour poids lourds, pour pneu génie civil et agricole. The adapter and the roller assembly of the invention are preferably used in the field of tires for light vehicles, such as tourism and pickup truck, but still for heavy goods vehicles, for civil and agricultural tires.
[0003] On rappelle ci-après les définitions utilisées dans la présente invention : - « direction axiale » : direction parallèle à l'axe de rotation du pneumatique, The following definitions are used in the present invention: - "axial direction": direction parallel to the axis of rotation of the tire,
« direction radiale » : direction coupant l'axe de rotation du pneumatique et perpendiculaire à celui-ci, "Radial direction": direction intersecting the axis of rotation of the tire and perpendicular to it,
« radialement intérieur à » : signifie « dont la distance radiale mesurée depuis l'axe de rotation du pneumatique est plus proche de l'axe de rotation », - « radialement extérieur à » : signifie « dont la distance radiale mesurée depuis l'axe de rotation du pneumatique est plus éloigné de l'axe de rotation », "Radially inner to": means "whose radial distance measured from the axis of rotation of the tire is closer to the axis of rotation", - "radially outside of": means "whose radial distance measured from the axis rotation of the tire is farther from the axis of rotation ",
« direction circonférentielle » : direction perpendiculaire à un rayon et comprise dans un plan perpendiculaire à l'axe de rotation du pneumatique, "Circumferential direction": direction perpendicular to a radius and lying in a plane perpendicular to the axis of rotation of the tire,
« coupe radiale » : coupe selon un plan qui contient l'axe de rotation du pneumatique, "Radial section": section along a plane which contains the axis of rotation of the tire,
« plan équatorial » : plan perpendiculaire à l'axe de rotation et qui passe par le milieu de la bande de roulement, « ensemble monté » : ensemble comprenant un pneumatique, une jante en acier ou aluminium et l'adaptateur selon l'invention. "Equatorial plane": plane perpendicular to the axis of rotation and which passes through the middle of the tread, "Assembled assembly": an assembly comprising a tire, a steel or aluminum rim and the adapter according to the invention.
[0004] Dans la demande WO02/068223, il est déjà connu d'insérer entre la jante et les bourrelets d'un pneumatique une virole flexible en matériau polymère destinée à assurer la jonction entre chaque bourrelet du pneumatique et les sièges de la jante grâce à des crochets métalliques disposés à chaque extrémité de la virole. Du fait de sa déformabilité élastique dans la direction radiale en partie centrale, la virole permet ainsi de maintenir, après gonflage, une pression maximale entre la jante et la virole. In the application WO02 / 068223, it is already known to insert between the rim and the beads of a tire a flexible shell of polymeric material intended to ensure the junction between each bead of the tire and the seats of the rim through to metal hooks arranged at each end of the ferrule. Due to its elastic deformability in the radial direction in the central part, the ferrule thus maintains, after inflation, a maximum pressure between the rim and the ferrule.
[0005] Or, l'une des difficultés dans la conception des pneumatiques destinés à être montés sur jante rigide est de les rendre insensibles à des chocs, tels que nids-de-poule. However, one of the difficulties in the design of tires to be mounted on a rigid rim is to make them insensitive to shocks, such as potholes.
[0006] Mais si une telle virole permet à l'ensemble roulant d'en permettre une déformation selon la direction radiale, elle n'a pas été conçue pour fournir à l'ensemble roulant une flexibilité suffisante selon la direction axiale lui garantissant une protection suffisante lors de chocs contre un trottoir ou dans des trous présents dans la chaussée. [0007] Tout au moins les inventeurs voulaient reconstituer d'une autre façon, une jante classique donc parfaitement rigide sans aucune contribution à une suspension ou à une flexibilité verticale. But if such a ferrule allows the wheel assembly to allow deformation in the radial direction, it was not designed to provide the overall flexibility sufficient in the axial direction to guarantee protection sufficient during shocks against a sidewalk or in holes in the roadway. At least the inventors wanted to reconstruct in another way, a classic rim so perfectly rigid without any contribution to a vertical suspension or flexibility.
[0008] D'autres solutions connues consistent à renforcer la nappe carcasse du pneumatique pour assurer une meilleure protection du pneumatique contre les chocs. Mais de telles solutions ne permettent pas pour autant de diminuer correctement l'intensité des efforts mécaniques supportés par le véhicule lors de chocs sur trottoir, et encore moins d'en diminuer les conséquences négatives sur les pneumatiques. Other known solutions consist in reinforcing the carcass ply of the tire to ensure better protection of the tire against shocks. But such solutions do not allow to properly reduce the intensity of the mechanical forces supported by the vehicle during shocks on the sidewalk, let alone reduce the negative consequences on the tires.
[0009] Le document US 1 250 405 A décrit un pneumatique comprenant trois zones vulcanisées pour constituer un bandage pneumatique en forme d'arche aplatie, un support intérieur et un cœur élastique. Ce document ne donne aucune précision sur le rapport (largeur déjante W)/(largeur de l'adaptateur L). US 1 250 405 A discloses a tire comprising three vulcanized zones to form a pneumatic tire in the form of a flattened arch, a inner support and an elastic heart. This document gives no details on the ratio (Width W) / (width of the adapter L).
[0010] Le document WO 2013/045618A1 décrit une roue allégée comprenant une jante en plastique renforcé de carbone et une étoile de roue en métal léger. [0011] Le document CA2 281 651 décrit un pneumatique et un ensemble monté le comprenant. Le pneumatique comprend une base de montage sur la jante et des moyens de blocage du pneumatique sur la jante. [0010] WO 2013/045618A1 discloses a lightened wheel comprising a carbon-reinforced plastic rim and a light metal wheel star. CA2 281 651 discloses a tire and a mounted assembly comprising it. The tire comprises a mounting base on the rim and means for locking the tire on the rim.
[0012] Le document GB 2 039 831 décrit un ensemble monté comprenant un pneumatique et une jante qui ne comprend aucune partie amovible. [0013] Aussi il subsiste le besoin transformer la virole divulguée dans WO02/068223 afin de lui conférer en plus une aptitude à la flexibilité verticale minimisant ainsi au maximum l'endommagement partiel, voire total, de sa structure interne, tout en maintenant à un haut niveau les performances de tenue de route du pneumatique, en particulier son aptitude à développer d'importantes poussées de dérive. En outre, pour le moins, en cas d'endommagement dû à une utilisation anormalement sévère du pneumatique, il s'agit de mettre en sécurité le véhicule par son déplacement sur une courte distance suite à un choc destructeur de l'ensemble monté. GB 2 039 831 discloses a mounted assembly comprising a tire and a rim that does not include any removable portion. Also it remains the need to transform the ferrule disclosed in WO02 / 068223 to confer in addition an aptitude for vertical flexibility thus minimizing the partial damage, or total, its internal structure, while maintaining a high level tire performance of the tire, especially its ability to develop significant drift. In addition, at least, in case of damage due to abnormally severe use of the tire, it is to secure the vehicle by moving a short distance following a destructive shock of the mounted assembly.
[0014] L'invention a donc pour objet un adaptateur pour ensemble roulant ayant un axe de rotation comprenant un pneumatique ayant deux bourrelets, une jante ayant une gorge de jante disposée entre deux sièges de jante ayant chacun une extrémité axialement extérieure, ladite jante présentant une largeur totale W entre chaque extrémité axialement extérieure desdits deux sièges de jante, ledit adaptateur assurant la jonction entre chaque bourrelet et chaque siège déjante, ledit adaptateur ayant : deux extrémités axialement extérieures comprenant chacune un siège d'adaptateur et une face d'appui d'adaptateur sensiblement comprise dans un plan perpendiculaire à l'axe de rotation, un corps reliant lesdites deux extrémités axiales extérieures de manière à former une pièce unitaire et comprenant au moins une armature de renforcement principale, ledit adaptateur présentant une largeur axiale totale L comprise entre chaque siège d'adaptateur, et - une face destinée à être en contact avec chaque siège de jante et avec la gorge de jante, et disposée radialement à l'intérieur, le rapport W/L étant supérieur ou égal à 20% et inférieur ou égal à 60% et, ledit corps comprenant un élément de blocage destiné à caler ledit adaptateur dans la gorge de jante. [0015] L'adaptateur se caractérise en ce que le corps comprend au moins un matériau isotrope choisi parmi le polyuréthane, le nylon, le polyéthylène téréphtalate, le polybutidiène téréphtalate, les silicones. The invention therefore relates to an adapter for a rolling assembly having an axis of rotation comprising a tire having two beads, a rim having a rim groove disposed between two rim seats each having an axially outer end, said rim having a total width W between each axially outer end of said two rim seats, said adapter ensuring the junction between each bead and each rim seat, said adapter having: two axially outer ends each comprising an adapter seat and a bearing surface; an adapter substantially in a plane perpendicular to the axis of rotation, a body connecting said two outer axial ends so as to form a unitary piece and comprising at least one main reinforcing armature, said adapter having a total axial width L between each adapter seat, and - a face intended to be in contact with each rim seat and with the rim groove, and disposed radially inward, the ratio W / L being greater than or equal to 20% and less than or equal to 60% and, said body comprising a locking element intended for wedge said adapter in the rim groove. The adapter is characterized in that the body comprises at least one isotropic material selected from polyurethane, nylon, polyethylene terephthalate, polybutene terephthalate, silicones.
[0016] Le matériau isotrope peut être disposé de manière continue ou discontinue. The isotropic material may be disposed continuously or discontinuously.
[0017] L'extrémité axialement extérieure de l'adaptateur délimite, axialement, un « logement destiné à recevoir le bourrelet du pneumatique ». La face d'appui de l'extrémité axialement extérieure sert d'appui, dans le sens axial, au bourrelet du pneumatique à l'instar d'un crochet dé jante. The axially outer end of the adapter defines, axially, a "housing for receiving the bead of the tire." The bearing surface of the axially outer end serves to support, in the axial direction, the bead of the tire like a rim hook.
[0018] Ainsi le logement reçoit le bourrelet du pneumatique tout comme le fait classiquement le siège d'une jante. Le pneumatique est alors immobilisé axialement par la pression de gonflage, et est plaqué contre la face d'appui de cette extrémité axialement extérieure, à l'instar de ce qui est fait classiquement pour le bourrelet d'un pneumatique contre le crochet dé jante d'une jante. Thus the housing receives the tire bead just as conventionally the seat of a rim. The tire is then immobilized axially by the inflation pressure, and is pressed against the bearing surface of this axially outer end, as is conventionally done for the bead of a tire against the rim hook d. a rim.
[0019] Ainsi, en fonctionnement de l'ensemble roulant selon l'invention et aux sollicitations de service pour lesquelles il est conçu, le pneumatique est immobilisé axialement par rapport à la jante, plus précisément les bourrelets du pneumatique sont immobilisés axialement par rapport à la jante de la même façon que pour un ensemble roulant classique dans lequel les bourrelets du pneumatique sont montés directement sur les sièges d'une jante, alors que les bourrelets du pneumatique ne sont pas immobilisés radialement par rapport à la jante, plus précisément les bourrelets du pneumatique sont capables d'un degré de déplacement radialement par rapport à la jante. En roulage standard, on peut dire qu'il n'y a quasiment pas de déformation axiale de l'adaptateur, ou alors elle est négligeable par rapport à la déformation radiale. Thus, in operation of the roller assembly according to the invention and the service requirements for which it is designed, the tire is immobilized axially with respect to the rim, more precisely the beads of the tire are immobilized axially with respect to the rim in the same way as for a conventional roller assembly in which the beads of the tire are mounted directly on the seats of a rim, whereas the beads of the tire are not immobilized radially relative to the rim, more precisely the beads of the tire are capable of a degree of displacement radially relative to the rim. In standard rolling, it can be said that there is almost no axial deformation of the adapter, or it is negligible compared to the radial deformation.
[0020] En revanche, lors d'un choc, la déformation axiale de l'adaptateur peut être importante, contribuant ainsi à réduire les contraintes sur l'ensemble monté. In contrast, during an impact, the axial deformation of the adapter can be important, thereby helping to reduce the constraints on the mounted assembly.
[0021] Le matériau isotrope permet, d'une part, de donner à l'adaptateur selon l'invention sa forme globale définitive, d'autre part, de transmettre les efforts mécaniques entre le pneumatique et la jante, et enfin d'améliorer le confort dans l'habitacle par une atténuation des nuisances sonores. [0022] Le matériau isotrope mis en contact avec la jante présente de préférence une rigidité adaptée de manière à garantir l'étanchéité entre l'adaptateur et la jante, une fois monté. The isotropic material allows, on the one hand, to give the adapter according to the invention its final overall shape, on the other hand, to transmit the mechanical forces between the tire and the rim, and finally to improve comfort in the passenger compartment by reducing noise pollution. The isotropic material brought into contact with the rim preferably has a rigidity adapted to ensure the seal between the adapter and the rim, once mounted.
[0023] Ce type de matériau présente en outre de préférence une compatibilité avec les pressions de serrage habituellement appliquées dans cette zone de l'ensemble monté, ainsi qu'une tenue correcte au fluage. This type of material preferably also has a compatibility with the clamping pressures usually applied in this area of the assembled assembly, and a correct creep resistance.
[0024] Les matériaux utilisés jusqu'ici dans les adaptateurs connus (nappe), présentent un comportement anisotrope, ce qui entraine des caractéristiques de raideurs différentes selon les directions de sollicitations mécaniques. Ce phénomène fait apparaître des déformations de l'adaptateur, et donc, de l'aire de contact entre le pneumatique et le sol, et par voie de conséquence influence négativement sur le comportement du véhicule. [0025] Le matériau isotrope selon l'invention évite l'apparition de tels effets. The materials used so far in the known adapters (web), exhibit anisotropic behavior, resulting in different stiffness characteristics according to the directions of mechanical stresses. This phenomenon causes deformation of the adapter, and therefore of the contact area between the tire and the ground, and consequently negatively influences the behavior of the vehicle. The isotropic material according to the invention avoids the appearance of such effects.
[0026] De plus, l'utilisation d'un matériau isotrope présentant un module d'élasticité à 10% de déformation (MA10) compris entre 30 et 50MPa, plus élevé que celui d'une composition élastomère qui est compris entre 3 et lOMPa, dans l'adaptateur selon l'invention permet d'améliorer la tenue de l'ensemble monté aux forces de compression supportées par l'ensemble monté. In addition, the use of an isotropic material having a modulus of elasticity at 10% deformation (MA10) of between 30 and 50MPa, higher than that of an elastomeric composition which is between 3 and lOMPa , in the adapter according to the invention improves the strength of the assembly mounted to compression forces supported by the assembly mounted.
[0027] Par module d'élasticité d'un matériau, on entend le module d'extension sécant obtenu en traction selon la norme ASTM D 412 de 1998 (éprouvette « C ») : on mesure en seconde élongation (c'est-à-dire après un cycle d'accommodation) les modules sécants apparents à 10% d'allongement, notés « MA 10 » et exprimés en MPa (conditions normales de températures et d'hygrométrie selon la norme ASTM D 1349 de 1999). Ce module d'élasticité est à distinguer des modules d'élasticité obtenus en compression et dont les valeurs sont en général sans rapport avec les modules obtenus en extension. [0028] De préférence, le corps comprend un premier et un second matériau isotrope, les premier et second matériaux isotropes peuvent être de nature chimique identique ou différente. By modulus of elasticity of a material is meant the secant extension module obtained in tension according to ASTM D 412 of 1998 (test tube "C"): it is measured in second elongation (ie after an accommodation cycle), the apparent secant moduli at 10% elongation, denoted "MA 10" and expressed in MPa (normal conditions of temperature and humidity according to ASTM D 1349 of 1999). This modulus of elasticity is to be distinguished from the modulus of elasticity obtained in compression and whose values are generally unrelated to the modules obtained in extension. [0028] Preferably, the body comprises a first and a second isotropic material, the first and second isotropic materials may be of the same or different chemical nature.
[0029] L'adaptateur peut comprendre un troisième matériau isotrope. Ce troisième matériau peut être une mousse absorbant les bruits de cavité du pneumatique. [0030] De préférence, les premier et second matériaux isotropes présentent un module à 10%> de déformation (MA10) comprise entre 3MPa et 800MPa indépendamment l'un de l'autre. The adapter may comprise a third isotropic material. This third material may be a foam that absorbs tire cavity noises. Preferably, the first and second isotropic materials have a modulus of 10%> deformation (MA10) between 3MPa and 800MPa independently of one another.
[0031] De préférence, le premier matériau isotrope englobe les éléments de renfort intérieur et extérieur, et le second matériau isotrope recouvre tout ou partie du premier matériau isotrope. [0032] De préférence, lorsque deux matériaux isotropes sont présents, le premier matériau présente un module à 10% de déformation (MA10) comprise entre 250MPa et 800MPa et le second matériau présente un module à 10% de déformation (MA10) comprise entre 3MPa et 50MPa. [0033] Dans un tel cas le second matériau aurait pour fonction de protéger le premier matériau des agressions extérieures ainsi que d'assurer plus facilement à des variations de géométrie des étanchéités entre l'adaptateur et le pneumatique, d'une part, et entre l'adaptateur et la jante d'autre part. [0031] Preferably, the first isotropic material includes the inner and outer reinforcement elements, and the second isotropic material covers all or part of the first isotropic material. Preferably, when two isotropic materials are present, the first material has a 10% deformation modulus (MA10) between 250 MPa and 800 MPa and the second material has a 10% deformation modulus (MA10) between 3 MPa. and 50MPa. In such a case the second material would function to protect the first material from external aggressions as well as to ensure more easily variations in geometry of the seals between the adapter and the tire, on the one hand, and between the adapter and the rim on the other hand.
[0034] Le second matériau isotrope contribuerait aussi à l'adhésion entre le pneumatique, l'adaptateur et le pneumatique. Ceci permettrait d'éviter des glissements relatifs lors du freinage. The second isotropic material would also contribute to the adhesion between the tire, the adapter and the tire. This would prevent relative slippage during braking.
[0035] Le choix particulier du second matériau permettrait d'absorber un maximum d'énergie sonore à l'intérieur du pneumatique, et d'atténuer ainsi le bruit de cavité du pneumatique. [0036] Le second matériau pourrait avoir une rigidité allant de 10 à 30 fois plus petite que celle du premier matériau qui engloberait les éléments de renfort intérieur et extérieur. The particular choice of the second material would absorb a maximum of sound energy inside the tire, and thus reduce the cavity noise of the tire. The second material could have a rigidity ranging from 10 to 30 times smaller than that of the first material which would include the inner and outer reinforcing elements.
[0037] De préférence le rapport W/L est supérieur ou égale à 25 et inférieur ou égale à 50. [0038] L'adaptateur selon l'invention présente l'avantage d'être de constitution simple et d'utiliser un montage classique et déjà connu d'un pneumatique sur jante pour monter le pneumatique sur l'adaptateur en comparaison à la virole du document WO02/068223 dont les étapes de montage sont différentes et qui utilisent en particulier une mise en dépression. Cet adaptateur présente en outre l'avantage de pourvoir être non démontable contrairement au dispositif du document WO02/068223 qui est uniquement démontable et qui exclut l'utilisation d'un moyen de fixation complémentaire, telle qu'une frette. Preferably, the ratio W / L is greater than or equal to 25 and less than or equal to 50. The adapter according to the invention has the advantage of being of simple constitution and of using a conventional assembly. and already known from a tire on a rim for mounting the tire on the adapter in comparison with the shell of WO02 / 068223, the mounting stages of which are different and which use in particular a depression. This adapter also has the advantage of being non-removable unlike the device of WO02 / 068223 which is only removable and which excludes the use of a complementary fastening means, such as a hoop.
[0039] De plus, contrairement à la virole divulguée dans le document WO02/068223, une liaison entre l'adaptateur selon l'invention et la gorge de jante doit toujours subsister lors des différentes étapes du montage. Selon le document WO02/068223, lors du montage, le pneumatique est, dans un premier temps, disposé sur la virole, puis cet ensemble est mis en dépression, grâce à l'élasticité de la virole, avant d'être disposé sur la jante par glissement axial, et enfin mis sous sa pression nominale. La mise en dépression au cours du montage aboutit à la non mise en contact de la virole et de la jante. Par conséquent, pour permettre le maintien correct du pneumatique sur la jante à l'issue du montage, la jante doit être la plus large possible de manière à ce qu'après gonflage, un effort maximal puisse s'exercer entre le pneumatique et la virole. In addition, unlike the ferrule disclosed in WO02 / 068223, a connection between the adapter according to the invention and the rim groove must always remain during the various stages of assembly. According to the document WO02 / 068223, during assembly, the tire is, at first, arranged on the shell, then this assembly is depressed, thanks to the elasticity of the shell, before being disposed on the rim by axial sliding, and finally put under its nominal pressure. The depression during assembly leads to the non-contact of the ferrule and the rim. Therefore, to allow the correct maintenance of the tire on the rim after assembly, the rim must be as wide as possible so that after inflation, maximum effort can be exerted between the tire and the ferrule .
[0040] La largeur totale W de la jante doit être inférieure à la largeur totale L de l'adaptateur de manière à garantir à cet adaptateur une élasticité suffisante qui permet d'absorber correctement le transfert des forces mécaniques inhérentes à un choc. Une telle élasticité ne peut pas être obtenue lorsque la largeur de la jante est trop importante. The total width W of the rim must be less than the total width L of the adapter so as to ensure that the adapter has sufficient elasticity to properly absorb the transfer of mechanical forces inherent in a shock. Such elasticity can not be obtained when the width of the rim is too great.
[0041] Le rapport W/L tel que défini dans l'adaptateur selon l'invention permet ainsi de garantir à un ensemble monté et gonflé, d'une part, une liaison mécanique permanente et suffisante entre le pneumatique et l'adaptateur, et d'autre part, une absorption correcte des forces mécaniques inhérentes à un choc. The ratio W / L as defined in the adapter according to the invention thus ensures a mounted and inflated assembly, on the one hand, a permanent and sufficient mechanical connection between the tire and the adapter, and on the other hand, a correct absorption of the mechanical forces inherent in a shock.
[0042] Un autre objet de l'invention est un ensemble roulant constitué d'un pneumatique comprenant deux bourrelets, une jante. Cet ensemble se caractérise en ce qu'il comprend un adaptateur tel que défini précédemment, l'adaptateur assurant la jonction entre chaque bourrelet du pneumatique et chaque siège de jante. [0043] De préférence, chaque extrémité axiale extérieure comprend un élément de renfort extérieur choisi parmi un métal (acier), nylon, PET, aramide. Il peut comprendre une matrice en résine et/ou fibres de renforcement, telle que rayonne, aramide, PET, nylon, fibre de verre, fibre de carbone, fibre de basalte, poly(éthylène2,6 naphtalate) (PEN), polyvinyl alcool (PVA). Another object of the invention is a rolling assembly consisting of a tire comprising two beads, a rim. This assembly is characterized in that it comprises an adapter as defined above, the adapter ensuring the junction between each bead of the tire and each rim seat. Preferably, each outer axial end comprises an outer reinforcing element chosen from a metal (steel), nylon, PET, aramid. He can understand a matrix of resin and / or reinforcing fibers, such as rayon, aramid, PET, nylon, fiberglass, carbon fiber, basalt fiber, poly (ethylene-2,6-naphthalate) (PEN), polyvinyl alcohol (PVA).
[0044] L'élément de blocage peut présenter une longueur axiale totale supérieure ou égale à 10% et inférieure ou égale à 80%, et de préférence supérieure ou égale à 30%> et inférieure ou égale à 50% de la largeur totale W de ladite jante. The locking element may have a total axial length greater than or equal to 10% and less than or equal to 80%, and preferably greater than or equal to 30%> and less than or equal to 50% of the total width W of said rim.
[0045] Cet élément de blocage est de préférence présent dans la partie médiane de l'adaptateur, ce dernier étant destiné à s'insérer dans la gorge dé jante correspondante de la jante. L'élément de blocage peut être constitué d'une ou plusieurs parties reliées entre elles ou non. This locking element is preferably present in the middle part of the adapter, the latter being intended to be inserted into the corresponding rim groove of the rim. The blocking element may consist of one or more parts connected to each other or not.
[0046] L'élément de blocage peut également être présent à proximité de l'une des extrémités axialement extérieures ou sur tout emplacement sur le corps disposé entre la position médiane de l'adaptateur et l'une des extrémités axialement extérieures. The locking element may also be present near one of the axially outer ends or at any location on the body disposed between the middle position of the adapter and one of the axially outer ends.
[0047] La gorge de jante peut également être disposée de manière décalée par rapport à la médiane de la jante. La jante présenterait alors deux sièges de jante de longueurs différentes. The rim groove may also be arranged offset from the median of the rim. The rim would then have two rim seats of different lengths.
[0048] Ainsi l'élément de blocage s'insère dans la gorge de jante. La gorge peut alors être disposée sur tout emplacement possible sur l'un des deux sièges déjante. Thus the locking element is inserted into the rim groove. The groove can then be arranged on any possible location on one of the two crazy seats.
L'élément de blocage comporte de préférence un renfort qui présente un module d'extension supérieur à 4GPa, et de préférence supérieur à 12GPa. Ce renfort peut être choisi parmi le métal (acier), le nylon, le polyéthylène téréphtalate (PET), l'aramide. L'élément de blocage peut comprendre une matrice en résine et/ou des fibres de renforcement telles que la rayonne, l'aramide, le PET, le nylon, la fibre de verre, la fibre de carbone, la fibre de basalte, le poly(éthylène 2,6 naphtalate (PEN), le polyvinyl alccol (PVA), les polykétones. [0049] L'élément de blocage peut être disposé à une longueur « 1 » située entre un axe médian YY'passant par le centre dudit élément de blocage et une des faces d'appui dudit adaptateur. The locking element preferably comprises a reinforcement which has an extension module greater than 4GPa, and preferably greater than 12GPa. This reinforcement may be selected from metal (steel), nylon, polyethylene terephthalate (PET), aramid. The blocking member may comprise a resin matrix and / or reinforcing fibers such as rayon, aramid, PET, nylon, fiberglass, carbon fiber, basalt fiber, poly (2,6-ethylene naphthalate (PEN), polyvinyl alcohol (PVA), polyketones. The locking element may be arranged at a length "1" located between a central axis YY 'passing through the center of said locking element and one of the support faces of said adapter.
[0050] Cette longueur « 1 » est comprise entre une longueur minimale et une longueur maximale définies par les formules mathématiques suivantes : lmini =0,l(W + W/2 + L) et lmaxi = L - 0,l(W + W/2 + L) dans le cas d'une utilisation pour un véhicule de tourisme, le siège de jante aura une longueur au minimum égale à 5mm, avec lmini = 5 + 0,10W/2 + 0,lL et lmaxi = L - (5 + 0,1 W/2 + 0,1L) This length "1" is between a minimum length and a maximum length defined by the following mathematical formulas: l min = 0, l (W + W / 2 + L) and l max = L - 0, l ( W + W / 2 + L) in the case of use for a passenger vehicle, the rim seat will have a minimum length of 5mm, with l min = 5 + 0.10W / 2 + 0, lL and l max = L - (5 + 0.1 W / 2 + 0.1L)
[0051] Le corps de l'adaptateur peut comprendre au moins une saillie. Cette saillie peut être présente au choix sur une extrémité axialement extérieure ou sur les deux. La saillie est de préférence constituée d'un élastomère classiquement utilisé dans le domaine du pneumatique. [0052] La position de la saillie sur l'adaptateur selon l'invention peut avantageusement reprendre les conditions paramétriques définies par l'ETRTO (the European Tyre and Rim Technical Organisation). The body of the adapter may comprise at least one protrusion. This projection may be present at choice on an axially outer end or on both. The projection is preferably made of an elastomer conventionally used in the field of the tire. The position of the projection on the adapter according to the invention may advantageously resume the parametric conditions defined by ETRTO (the European Tire and Rim Technical Organization).
[0053] Ainsi la distance « d » comprise entre le centre de la saillie et la face d'appui de l'adaptateur sera fonction de sa largeur axiale totale L de l'adaptateur. Le tableau ci-après donne quelques correspondances entre les valeurs de L et « d ». Largeur axiale L (pouces) « d » minimale (mm) Thus the distance "d" between the center of the projection and the support face of the adapter will be a function of its total axial width L of the adapter. The table below gives some correspondence between the values of L and "d". Axial width L (inches) "d" minimum (mm)
3 13 3 13
Entre 3,5 et 4 16 Between 3.5 and 4 16
> 4,5 21 > 4.5 21
[0054] La largeur « A » de siège de jante est supérieure ou égale à 10% de la largeur W de la jante. The width "A" of rim seat is greater than or equal to 10% of the width W of the rim.
[0055] La largeur « B » entre la face d'appui d'une extrémité axialement extérieure de l'adaptateur et l'extrémité axiale extérieure du siège de jante le plus proche de ladite face d'appui est supérieure ou égale à 10%> de la largeur totale L de l'adaptateur, et préférentiellement supérieure ou égale à 15%. Pour la roue d'un véhicule de tourisme cette largeur « B » est supérieure ou égale à 21mm. The width "B" between the bearing face of an axially outer end of the adapter and the outer axial end of the rim seat closest to said bearing face is greater than or equal to 10% > the total width L of the adapter, and preferably greater than or equal to 15%. For the wheel of a passenger vehicle this width "B" is greater than or equal to 21mm.
[0056] Dans le cas où l'adaptateur est fixé avant d'être disposé sur la jante, alors l'assemblage entre la jante et l'adaptateur est réalisé en force. L'adaptateur est par conséquent rendu indissociable de la jante, et donc non démontable. In the case where the adapter is fixed before being disposed on the rim, then the assembly between the rim and the adapter is made in force. The adapter is therefore rendered indissociable from the rim, and therefore not removable.
[0057] L'adaptateur peut être collé à froid ou à chaud sur la jante après un traitement préalable éventuel du métal constituant la jante. Lorsque l'adaptateur est collé à chaud ou à froid sur la jante, l'adaptateur est non démontable. [0058] Dans les autres cas, il peut être considéré comme démontable. The adapter can be glued cold or hot on the rim after a possible prior treatment of the metal constituting the rim. When the adapter is glued hot or cold on the rim, the adapter is not removable. In other cases, it can be considered removable.
[0059] L'adaptateur comprend au moins une bande conductrice, amovible ou non, disposée sur la totalité ou sur une partie du pourtour circonférentielle dudit adaptateur, et sur un trajet complet allant de la face d'appui d'adaptateur à la jante J. La présence de la bande conductrice permet en outre d'assurer la conduction de l'électricité entre le sol et la roue, et donc entre le sol et le véhicule notamment lorsque la conductivité des compositions élastomères n'est pas suffisante, et ceci d'autant plus que le pneumatique ne repose pas directement sur la roue mais sur un adaptateur. The adapter comprises at least one conductive strip, removable or not, disposed on all or part of the circumferential periphery of said adapter, and on a complete path from the adapter support face to the rim J The presence of the conductive strip also makes it possible to ensure the conduction of electricity between the ground and the wheel, and therefore between the ground and the vehicle especially when the conductivity of the elastomeric compositions is not sufficient, and this especially as the tire does not rest directly on the wheel but on an adapter.
[0060] De préférence, lorsque la bande conductrice est amovible ou non amovible, elle est disposée entièrement à la surface radialement externe au corps. Preferably, when the conductive strip is removable or non-removable, it is disposed entirely on the radially outer surface of the body.
[0061] De préférence, lorsque la bande conductrice est non amovible, elle est partiellement enfouie sous la surface radialement externe du corps. Preferably, when the conductive strip is non-removable, it is partially buried under the radially outer surface of the body.
[0062] De préférence, la bande conductrice présente une résistivité électrique inférieure ou égale à 108 Ohm.cm, et de préférence inférieure ou égale à 107 Ohm.cm. Preferably, the conductive strip has an electrical resistivity of less than or equal to 10 8 ohm.cm, and preferably less than or equal to 10 7 ohm.cm.
[0063] De préférence, la bande conductrice est constituée au choix d'une lame métallique ou en une composition élastomère comprenant du noir de carbone en une quantité supérieure ou égale à 15%. Preferably, the conductive strip consists of the choice of a metal blade or an elastomeric composition comprising carbon black in an amount greater than or equal to 15%.
[0064] De préférence, le noir de carbone de la composition élastomère présente une surface spécifique supérieure ou égale à 500m2/g. Preferably, the carbon black of the elastomer composition has a specific surface greater than or equal to 500m 2 / g.
[0065] De préférence, lorsque la bande conductrice est non amovible, elle est collée ou réticulée à la composition élastomère du corps. Preferably, when the conductive strip is non-removable, it is bonded or crosslinked to the elastomeric composition of the body.
[0066] La jante peut être constituée en un matériau choisi parmi les alliages d'aluminium et/ou de magnésium, les matériaux composites à base de fibres de carbone, de fibres de verre, de fibres d'aramide, de fibres végétales, lesdites fibres étant comprises dans une matrice à base de composés thermodurcissables ou de composés thermoplastiques, ou en un composé complexe comprenant un élastomère et un complexe à base de résine et de fibres choisies parmi les fibres de carbone, les fibres de verre, les fibres d'aramide, les fibres végétales ou parmi toutes combinaisons de matériaux. [0067] De préférence, les matériaux composites à base de fibres comprennent des fibres ayant une longueur supérieure ou égale à 5mm. The rim may be made of a material selected from aluminum alloys and / or magnesium, composite materials based on carbon fibers, glass fibers, aramid fibers, vegetable fibers, said fibers being included in a matrix based on thermosetting compounds or thermoplastic compounds, or a complex compound comprising an elastomer and a complex based on resin and fibers selected from carbon fibers, glass fibers, aramid, plant fibers or from any combination of materials. [0067] Preferably, the fiber-based composite materials comprise fibers having a length greater than or equal to 5 mm.
[0068] La matrice à base de composés thermodurcissables est choisie parmi les résines époxy, le vinylester, les polyesters insaturés, le cyanate ester, le bismaléimide, les résines acryliques, les résines phénoliques, les polyuréthanes et leur combinaison. The matrix based on thermosetting compounds is chosen from epoxy resins, vinylester, unsaturated polyesters, cyanate ester, bismaleimide, acrylic resins, phenolic resins, polyurethanes and combinations thereof.
[0069] La matrice à base de composés thermoplastiques est choisie parmi le polypropylène (PP), le polyéthylène (PE), les polyamides (PA), les polyamides semi- aromatiques, le polyester (PET), le polytéréphtalate de butylène (PBT), le polyétheréthercétone (PEEK), le polyéthercétonecétone (PEKK), le polyéthersulfone (PSU), le polyétherimide (PEI), le polyimide (PI), le polyamideimide (PAI), le polyphénylénesulfide (PPS), le polyoxyméthylène (POM), le polyoxyde de phénylène (PPO). The matrix based on thermoplastic compounds is chosen from polypropylene (PP), polyethylene (PE), polyamides (PA), semi-aromatic polyamides, polyester (PET) and polybutylene terephthalate (PBT). , polyetheretherketone (PEEK), polyetherketoneketone (PEKK), polyethersulfone (PSU), polyetherimide (PEI), polyimide (PI), polyamideimide (PAI), polyphenylenesulfide (PPS), polyoxymethylene (POM), polyphenylene oxide (PPO).
[0070] L'invention va maintenant être décrite à l'aide des exemples et figures annexées qui sont uniquement donnés à titre d'illustration, et dans lesquels : - La figure 1 représente une vue schématique en coupe d'un mode de réalisation de l'adaptateur selon l'invention, The invention will now be described with the aid of the examples and appended figures which are only given by way of illustration, and in which: FIG. 1 represents a schematic sectional view of an embodiment of the adapter according to the invention,
- La figure 2 représente une vue schématique en coupe d'un mode de réalisation de l'adaptateur selon l'invention monté sur une jante, et FIG. 2 represents a schematic sectional view of an embodiment of the adapter according to the invention mounted on a rim, and
- La figure 3 représente une vue schématique en coupe d'un autre mode de réalisation de l'adaptateur selon l'invention, et FIG. 3 represents a schematic sectional view of another embodiment of the adapter according to the invention, and
- La figure 4 représente une vue schématique en coupe d'un ensemble roulant comprenant l'adaptateur selon l'invention, un pneumatique et une jante selon un premier mode de réalisation, - La figure 5 représente une vue schématique en coupe d'un ensemble roulant comprenant l'adaptateur selon l'invention, un pneumatique et une jante selon un second mode de réalisation, FIG. 4 represents a schematic sectional view of a wheel assembly comprising the adapter according to the invention, a tire and a rim according to a first embodiment, FIG. 5 represents a schematic sectional view of a wheel assembly comprising the adapter according to the invention, a tire and a rim according to a second embodiment,
- La figure 6 représente une vue schématique en coupe d'un ensemble roulant comprenant l'adaptateur selon l'invention, un pneumatique et une jante selon un troisième mode de réalisation. - Figure 6 shows a schematic sectional view of a roller assembly comprising the adapter according to the invention, a tire and a rim according to a third embodiment.
[0071] Comme le montre la figure 1, l'adaptateur de référence générale 1, sensiblement de forme linéaire, comprend deux extrémités 2 axialement extérieures opposées comprenant chacune un siège d'adaptateur 3 et une face d'appui 4 d'adaptateur correspondante sensiblement comprise dans un plan perpendiculaire à l'axe de rotation d'un pneumatique. Un corps 5 relie les deux extrémités 2 de manière à former une pièce unitaire. Le corps comprend deux matériaux isotropes 6, 7, un premier 6 extérieur à l'adaptateur et un second 7 intérieur à l'adaptateur. L'adaptateur présente une largeur axiale totale L égale à 190.5mm mesurée entre chaque surface d'appui 4. As shown in Figure 1, the general reference adapter 1, substantially linear in shape, comprises two axially opposite outer ends 2 each comprising an adapter seat 3 and a corresponding adapter support face 4 substantially included in a plane perpendicular to the axis of rotation of a tire. A body 5 connects the two ends 2 so as to form a unitary piece. The body comprises two isotropic materials 6, 7, a first 6 outside the adapter and a second 7 inside the adapter. The adapter has a total axial width L equal to 190.5 mm measured between each support surface 4.
[0072] Une face 16 pouvant être délimitée par des repères en surface et située radialement à l'intérieure de l'adaptateur 1, est destinée à être en contact avec une gorge 13 dé jante et les sièges déjante 12 (figure 2). A face 16 may be delimited by surface markers and located radially on the inside of the adapter 1, is intended to be in contact with a throat 13 of the rim and squares 12 (Figure 2).
[0073] Le corps 5 comprend dans sa partie médiane (représentée par un axe XX') un élément de blocage 15 ayant une longueur axiale totale égale à 25% de la largeur L pour une roue de véhicule de tourisme de largeur 7,5 pouces, soit de 190,5 mm. L'élément de blocage 15 est constitué en caoutchouc qui présente un module d'extension égale à 50GPa. The body 5 comprises in its middle part (represented by an axis XX ') a locking element 15 having a total axial length equal to 25% of the width L for a passenger vehicle wheel width 7.5 inches , ie 190.5 mm. The locking element 15 is made of rubber which has an extension module equal to 50GPa.
[0074] Les extrémités 2 radialement externes comprennent chacune un élément de renforcement extérieur 10, encore appelé tringle, constitué en un matériau composite verre-résine. [0075] Comme le montre la figure 2, l'adaptateur 1 est disposé sur une jante 11 partiellement représentée. Cette jante comprend deux sièges dé jante 12 séparés par une gorge dé jante 13. The radially outer ends 2 each comprise an outer reinforcing element 10, also called a bead wire, made of a glass-resin composite material. As shown in Figure 2, the adapter 1 is disposed on a rim 11 partially shown. This rim comprises two rim seats 12 separated by a rim groove 13.
[0076] Sur le mode de réalisation de la figure 3, l'adaptateur comprend, en plus des éléments cités précédemment, deux saillies 17 disposées chacune, sur le corps 5, et dont les centres sont espacés d'une distance « d » d'au moins 21mm à compter de l'extrémité de la surface d'appui 4. In the embodiment of Figure 3, the adapter comprises, in addition to the elements mentioned above, two projections 17 each disposed on the body 5, and whose centers are spaced a distance "d" d at least 21mm from the end of the bearing surface 4.
[0077] Ces deux saillies 17 sont constituées en gomme élastomère, éventuellement renforcée par des câbles disposés principalement dans la direction circonférentielle. [0078] La figure 4 représente un ensemble monté comprenant une jante 11 de largeur W sur laquelle est inséré l'adaptateur 1 et sur lequel est inséré un pneumatique 17 classique par le biais de ses bourrelets 18. These two projections 17 are made of elastomeric rubber, optionally reinforced by cables arranged mainly in the circumferential direction. FIG. 4 shows a mounted assembly comprising a rim 11 of width W on which the adapter 1 is inserted and on which is inserted a conventional tire 17 by means of its beads 18.
[0079] Le montage de cet ensemble s'effectue de manière classique et connue en disposant en force l'adaptateur sur la jante de manière à ce que l'élément de blocage 15 s'insère dans la gorge 13. Les bourrelets 18 du pneumatique 17 sont ensuite disposés chacun sur un siège 3 de l'adaptateur 1. L'ensemble monté est ensuite mis sous sa pression nominale. Sur la figure 4, l'élément de blocage 15 est disposé dans la partie médiane de la jante. The assembly of this assembly is carried out in a conventional and known manner by disposing in force the adapter on the rim so that the locking element 15 is inserted into the groove 13. The beads 18 of the tire 17 are then each arranged on a seat 3 of the adapter 1. The assembled assembly is then put under its nominal pressure. In Figure 4, the locking member 15 is disposed in the middle portion of the rim.
[0080] Comme le montre la figure 5, l'élément de blocage 15 est disposé de manière décalée par rapport à l'axe médian XX' de l'adaptateur mais de manière centrée par rapport à l'axe médian ZZ' de la jante. Il est disposé à une distance « 1 » supérieure ou égale à (W/2 + 21)mm pour une roue de largeur 7,5 pouces, soit de 190,5mm. As shown in Figure 5, the locking member 15 is disposed offset from the central axis XX 'of the adapter but centrally relative to the central axis ZZ' of the rim . It is arranged at a distance "1" greater than or equal to (W / 2 + 21) mm for a wheel of width 7.5 inches, or 190.5mm.
[0081] La longueur « 1 » située entre le centre de la gorge de jante et l'extrémité axialement extérieure de l'adaptateur respecte les contraintes physiques A>5mm et B>21mm, où A est la largeur d'un siège de jante et B la distance entre la face d'appui 4 d'une extrémité axialement extérieure de l'adaptateur et une extrémité axiale 11A d'un siège déjante. The length "1" located between the center of the rim groove and the axially outer end of the adapter respects the physical constraints A> 5mm and B> 21mm, where A is the width of a rim seat and B the distance between the support face 4 an axially outer end of the adapter and an axial end 11A of a crazy seat.
[0082] Comme le montre la figure 6, l'élément de blocage 15 est disposé de manière décalée par rapport à l'axe médian ZZ' de la jante et par rapport à l'axe médian XX' de l'adaptateur. Dans cette figure, il est disposé à une distance « 1 » en mm du centre de l'extrémité axialement extérieure côté intérieur du véhicule, où l = L - W + 5 + W/200 - 21 As shown in Figure 6, the locking member 15 is disposed offset with respect to the central axis ZZ 'of the rim and relative to the median axis XX' of the adapter. In this figure, it is disposed at a distance "1" in mm from the center of the axially outer end of the vehicle, where L = W + 5 + W / 200 - 21
Pour une roue pour véhicule de tourisme de référence 7,5 J 17, W est égale à 50mm, L à 190,5 mm et « 1 » à 56 mm. [0083] Les exemples qui suivent montrent les résultats obtenus avec l'adaptateur selon l'invention. For a standard passenger vehicle wheel 7.5 J 17, W is 50mm, L is 190.5mm and "1" is 56mm. The following examples show the results obtained with the adapter according to the invention.
[0084] Exemple : Essais sur choc trottoir Example: Tests on sidewalk impact
Cet essai consiste à faire monter un ensemble monté sur un trottoir selon un angle d'attaque de 30°. Le choix de cet angle est basé sur le fait qu'il constitue une sollicitation très pénalisante pour un pneumatique. L'essai s'effectue avec deux hauteurs de trottoir différentes (90mm et 110mm). This test consists of mounting a set mounted on a sidewalk at an angle of attack of 30 °. The choice of this angle is based on the fact that it constitutes a very penalizing stress for a tire. The test is carried out with two different sidewalk heights (90mm and 110mm).
Le test se déroule de la manière suivante. On effectue plusieurs passages de la roue à des vitesses différentes jusqu'à obtenir la crevaison du pneumatique. La vitesse de départ est de 20km/h, puis on incrémente la vitesse de 5km/h à chaque nouveau passage. On compare un ensemble classique sans adaptateur (témoin 1) à un ensemble muni d'un adaptateur selon le document WO00/78565 (témoin 2), et à un ensemble muni d'un adaptateur selon l'invention (invention). Ces ensembles sont tous de dimension 205/55R16 comprenant une jante 6.5J16. Les résultats sont rassemblés dans le tableau I suivant et sont donnés en pourcentage : Témoin 1 Témoin 2 Invention The test proceeds as follows. Several passages of the wheel are made at different speeds until the tire is punctured. The starting speed is 20km / h, then we increment the speed of 5km / h at each new passage. A conventional set without adapter (control 1) is compared to an assembly provided with an adapter according to WO00 / 78565 (control 2), and to an assembly provided with an adapter according to the invention (invention). These sets are all of size 205 / 55R16 including a 6.5J16 rim. The results are collated in the following Table I and are given as a percentage: Witness 1 Witness 2 Invention
Pourcentage de la 100 >150 >150 vitesse de crevaison par Percentage of the 100> 150> 150 puncture speed by
rapport au témoin - hauteur trottoir 90mm report to witness - sidewalk height 90mm
Niveau d'effort de 100 50 45 Level of effort of 100 50 45
portée verticale (Fz) vertical reach (Fz)
relévée à la vitesse de revived at the speed of
crevaison du témoin 1 puncture of the witness 1
Tableau I Table I
L'essai réalisé sur la hauteur de trottoir de 90mm aboutit à la crevaison du pneumatique témoin à une vitesse de 30km/h, alors que l'ensemble selon l'invention ne subit aucun dommage à cette même vitesse, voire à une vitesse de 50km/h. L'essai réalisé sur la hauteur de trottoir de 110mm aboutit à la crevaison du pneumatique témoin à une vitesse de 20km/h, alors que l'ensemble selon l'invention ne subit aucun dommage à cette même vitesse, voire à une vitesse de 50km/h. The test carried out on the sidewalk height of 90 mm results in the puncture of the control tire at a speed of 30 km / h, whereas the assembly according to the invention undergoes no damage at this same speed, even at a speed of 50 km. / h. The test performed on the sidewalk height of 110mm results in the puncture of the control tire at a speed of 20km / h, while the assembly according to the invention undergoes no damage at this same speed, even at a speed of 50km. / h.

Claims

REVENDICATIONS
1 - Adaptateur pour ensemble roulant ayant un axe de rotation, ledit ensemble comprenant -un pneumatique ayant deux bourrelets, 1 - Adapter for a roller assembly having an axis of rotation, said assembly comprising a tire having two beads,
-une jante ayant une gorge de jante (13) disposée entre deux sièges de jante (12) ayant chacun une extrémité axialement extérieure, ladite jante présentant une largeur totale W entre chaque extrémité axialement extérieure desdits deux sièges déjante, ledit adaptateur assurant la jonction entre chaque bourrelet et chaque siège dé jante, ledit adaptateur ayant deux extrémités axialement extérieures (2) comprenant chacune un siège d'adaptateur (3) et une face d'appui (4) d'adaptateur sensiblement comprise dans un plan perpendiculaire à l'axe de rotation, un corps (5) reliant lesdites deux extrémités axiales extérieures (2) de manière à former une pièce unitaire et comprenant au moins une armature de renforcement principale, et une face (16) destinée à être en contact avec chaque siège de jante (12) et avec la gorge dé jante (13), et disposée radialement à l'intérieur, ledit adaptateur présentant une largeur axiale totale L comprise entre chaque siège d'adaptateur (3), le rapport W/L étant supérieur ou égal à 20% et inférieur ou égal à 60%>, et ledit corps (5) comprenant un élément de blocage (15) destiné à caler ledit adaptateur dans la gorge de jante (13), caractérisé en ce que le corps (5) comprend au moins un matériau isotrope choisi parmi le polyuréthane, le nylon, le polyéthylène téréphtalate, le polybutadiène téréphtalate, les silicones. 2 - Adaptateur selon la revendication 1 , dans lequel le corps (5) comprend un premier (6) et un second matériau (7) isotrope. a rim having a rim groove (13) disposed between two rim seats (12) each having an axially outer end, said rim having a total width W between each axially outer end of said two rim seats, said adapter ensuring the connection between each bead and each rim seat, said adapter having two axially outer ends (2) each comprising an adapter seat (3) and an adapter support face (4) substantially in a plane perpendicular to the axis of rotation, a body (5) connecting said two outer axial ends (2) so as to form a unitary piece and comprising at least one main reinforcing armature, and a face (16) intended to be in contact with each rim seat (12) and with the rim groove (13), and arranged radially on the inside, said adapter having a total axial width L between each seat of ad aptator (3), the W / L ratio being greater than or equal to 20% and less than or equal to 60%, and said body (5) comprising a locking element (15) for wedging said adapter in the rim groove (13), characterized in that the body (5) comprises at least one isotropic material selected from polyurethane, nylon, polyethylene terephthalate, polybutadiene terephthalate, silicones. 2 - adapter according to claim 1, wherein the body (5) comprises a first (6) and a second material (7) isotropic.
3 - Adaptateur selon l'une des revendications 1 ou 2, dans lequel les premier (6) et second (7) matériaux isotropes sont de nature chimique identique. 3 - Adapter according to one of claims 1 or 2, wherein the first (6) and second (7) isotropic materials are of identical chemical nature.
4 - Adaptateur selon la revendication 2, dans lequel les premier et second matériaux (6, 7) isotropes sont de nature chimique différente. 4 - Adapter according to claim 2, wherein the first and second isotropic materials (6, 7) are of different chemical nature.
5 - Adaptateur selon l'une des revendications 2 à 4, dans lequel les premier et second matériaux présentent un module à 10% de déformation (MA10) compris entre 3 MPa et 800 MPa indépendamment l'un de l'autre. 5 - Adapter according to one of claims 2 to 4, wherein the first and second materials have a 10% deformation modulus (MA10) of between 3 MPa and 800 MPa independently of one another.
6 - Adaptateur selon l'une des revendications 2 à 5, dans lequel le second matériau isotrope (7) recouvre tout ou partie du premier matériau isotrope (6). 6 - Adapter according to one of claims 2 to 5, wherein the second isotropic material (7) covers all or part of the first isotropic material (6).
7 - Adaptateur selon l'une des revendications 2 à 6, dans lequel lorsque deux matériaux isotropes sont présents, le premier présente un module à 10%> de déformation (MA10) compris entre 250MPa et 800MPa et le second matériau présente un module à 10%> de déformation (MA10) compris entre 25MPa et 50MPa. 7 - Adapter according to one of claims 2 to 6, wherein when two isotropic materials are present, the first has a 10%> deformation module (MA10) between 250MPa and 800MPa and the second material has a 10-module %> deformation (MA10) between 25MPa and 50MPa.
8 - Adaptateur selon la revendication 1, dans lequel le rapport W/L est de préférence supérieur ou égale à 25% et inférieur ou égale à 50%>. 8 - Adapter according to claim 1, wherein the W / L ratio is preferably greater than or equal to 25% and less than or equal to 50%>.
9- Adaptateur selon la revendication 1, caractérisé en ce que chaque extrémité axiale extérieure (2) comprend un élément de renforcement extérieur choisi parmi un métal, un matériau composite, un matériau thermoplastique, une résine. 9- The adapter of claim 1, characterized in that each outer axial end (2) comprises an outer reinforcing element selected from a metal, a composite material, a thermoplastic material, a resin.
10 - Adaptateur selon la revendication 1, caractérisé en ce que l'élément de blocage (15) présente une longueur axiale totale supérieure ou égale à 10%> et inférieure ou égale à 80%>, et de préférence supérieure ou égale à 30%> et inférieure ou égale à 50%> de la largeur totale W de la jante. 11 - Adaptateur selon l'une des revendications 1 ou 10, caractérisé en ce que l'élément de blocage (15) présente un renfort ayant un module d'extension supérieur à 4GPa, et de préférence supérieur à 12GPa. 10 - Adapter according to claim 1, characterized in that the locking element (15) has a total axial length greater than or equal to 10%> and less than or equal to 80%>, and preferably greater than or equal to 30% > and less than or equal to 50%> of the total width W of the rim. 11 - Adapter according to one of claims 1 or 10, characterized in that the locking element (15) has a reinforcement having an expansion module greater than 4GPa, and preferably greater than 12GPa.
12 - Adaptateur selon l'une des revendications 1 ou 1 1, caractérisé en ce que l'élément de blocage (15) comprend un renfort choisi parmi le métal, le nylon, le PET, l'aramide. 12 - Adapter according to one of claims 1 or 1 1, characterized in that the locking element (15) comprises a reinforcement selected from metal, nylon, PET, aramid.
13 - Adaptateur selon la revendication 1, caractérisé en ce que le corps (5) comprend au moins une saillie (17) disposée sur au moins une extrémité axialement extérieure. 13 - Adapter according to claim 1, characterized in that the body (5) comprises at least one projection (17) disposed on at least one axially outer end.
14 - Adaptateur selon la revendication 13, caractérisé en ce que la saillie (17) est choisie parmi un métal, un matériau composite, un matériau thermoplastique, une résine. 14 - Adapter according to claim 13, characterized in that the projection (17) is selected from a metal, a composite material, a thermoplastic material, a resin.
15 - Ensemble roulant constitué d'un pneumatique comprenant deux bourrelets, une jante caractérisé en ce qu'il comprend un adaptateur selon l'une des revendications précédentes, l'adaptateur assurant la jonction entre chaque bourrelet du pneumatique et chaque siège de jante. 15 - rolling assembly consisting of a tire comprising two beads, a rim characterized in that it comprises an adapter according to one of the preceding claims, the adapter ensuring the junction between each bead of the tire and each rim seat.
PCT/EP2016/075551 2015-12-01 2016-10-24 Adapter for a wheeled assembly and a wheeled assembly comprising same WO2017092929A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1561645A FR3044264B1 (en) 2015-12-01 2015-12-01 ADAPTER FOR ROLLING ASSEMBLY AND ROLLING ASSEMBLY COMPRISING SAME
FR1561645 2015-12-01

Publications (1)

Publication Number Publication Date
WO2017092929A1 true WO2017092929A1 (en) 2017-06-08

Family

ID=55646709

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/075551 WO2017092929A1 (en) 2015-12-01 2016-10-24 Adapter for a wheeled assembly and a wheeled assembly comprising same

Country Status (2)

Country Link
FR (1) FR3044264B1 (en)
WO (1) WO2017092929A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201900025789A1 (en) * 2019-12-30 2021-06-30 Pirelli Vehicle wheel tires with reinforcement elements comprising semi-aromatic polyamides

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1250405A (en) 1917-03-14 1917-12-18 Joseph S Williams Resilient tire.
GB2039831A (en) 1978-12-29 1980-08-20 Dunlop Ltd Improvements in or Relating to Pneumatic Tyre and Wheel Rim Assemblies
CA2281651A1 (en) 1998-01-20 1999-07-29 Compagnie Generale Des Etablissements Michelin - Michelin & Cie Simplified method for mounting a tyre on its rim and removing it therefrom
WO2002068223A1 (en) 2001-02-26 2002-09-06 Societe De Technologie Michelin Tyre, hoop and rim assembly
WO2013045618A1 (en) 2011-09-30 2013-04-04 Washi Kosan Co. Ltd. Wheel
FR3020013A1 (en) * 2014-04-16 2015-10-23 Michelin & Cie ADAPTER FOR ROLLING ASSEMBLY AND ROLLING ASSEMBLY COMPRISING SAME
FR3020312A1 (en) * 2014-04-29 2015-10-30 Michelin & Cie ROLLING ASSEMBLY

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1250405A (en) 1917-03-14 1917-12-18 Joseph S Williams Resilient tire.
GB2039831A (en) 1978-12-29 1980-08-20 Dunlop Ltd Improvements in or Relating to Pneumatic Tyre and Wheel Rim Assemblies
CA2281651A1 (en) 1998-01-20 1999-07-29 Compagnie Generale Des Etablissements Michelin - Michelin & Cie Simplified method for mounting a tyre on its rim and removing it therefrom
WO2002068223A1 (en) 2001-02-26 2002-09-06 Societe De Technologie Michelin Tyre, hoop and rim assembly
WO2013045618A1 (en) 2011-09-30 2013-04-04 Washi Kosan Co. Ltd. Wheel
FR3020013A1 (en) * 2014-04-16 2015-10-23 Michelin & Cie ADAPTER FOR ROLLING ASSEMBLY AND ROLLING ASSEMBLY COMPRISING SAME
FR3020312A1 (en) * 2014-04-29 2015-10-30 Michelin & Cie ROLLING ASSEMBLY

Also Published As

Publication number Publication date
FR3044264A1 (en) 2017-06-02
FR3044264B1 (en) 2019-05-17

Similar Documents

Publication Publication Date Title
EP3197690B1 (en) Adapter for a wheel assembly and a wheel assembly comprising same
EP3137319B1 (en) Rolling assembly comprising a tyre, a rim and an adapter
EP3131760B1 (en) Adapter for rolling assembly and rolling assembly comprising same
EP3083288B1 (en) Adapter for rolling assembly and rolling assembly comprising same
EP3247574B1 (en) Tyre-type device for a vehicle
EP3083287B1 (en) Adapter for rolling assembly and rolling assembly comprising same
EP3253599B1 (en) Rolling assembly
EP3707016B1 (en) Tyre for passenger vehicle
EP3294576B1 (en) Adaptor for rolling assembly and rolling assembly comprising same
WO2019115905A1 (en) Non-pneumatic wheel
WO2019002792A1 (en) Rolling assembly having a rim, the flange of which forms a support of increased axial width
EP3898273A1 (en) Tyre for vehicle comprising a stiffening structure
EP3383678A1 (en) Adapter for rolling assembly and rolling assembly comprising same
EP3645306A1 (en) Wheel rim with optimized shape of rim flange
WO2017092929A1 (en) Adapter for a wheeled assembly and a wheeled assembly comprising same
WO2016046200A1 (en) Adapter for a wheeled assembly and wheeled assembly including same
WO2015165637A1 (en) Rolling assembly
CA2389891A1 (en) Safety support and support and rim assembly for tyre comprising centring means for easy mounting
WO2016139043A1 (en) Rolling assembly
FR3075102A3 (en) NON-PNEUMATIC WHEEL COMPRISING A CIRCONFERENTIAL REINFORCING STRUCTURE
EP3490813A1 (en) Tyre type device for vehicle

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16784931

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16784931

Country of ref document: EP

Kind code of ref document: A1