Abstract: A rim assembly for a bicycle wheel includes a rim, a first protruding tire retaining feature attached to a first surface of the rim, and a second protruding tire retaining feature attached to a second surface of the rim. The first surface is a surface of a first tire retaining wall of a radially outer tire engaging portion of the rim, and the second surface is a surface of a second tire retaining wall of the radially outer tire engaging portion. The second surface faces the first surface. The first protruding tire retaining feature and the second protruding tire retaining feature are made of a first material, and the first tire retaining wall and the second tire retaining wall are made of a second material. The second material is different than the first material.

Abstract: A profile clamp includes a clamping band and a first tensioning head arranged at a first end and a second tensioning head arranged at a second end of the clamping band. The first tensioning head includes a first opening and the second tensioning head includes a second opening. A screw is provided with a screw head and a screw body. The screw body may be guided through the first opening and the second opening. A threaded nut is provided, which may be arranged on the screw body when the screw body is guided through the first opening and the second opening. The screw body has a first threaded section and a second threaded section and a section of reduced diameter therebetween.

Abstract: A pull or push rod or locking nut for a molding machine has an undercut, and the undercut has an undercut cross-section, a side wall, and an undercut ramp. The side wall transitions via a first transition curvature into an undercut base, and the undercut base transitions via a second transition curvature into the undercut ramp. The undercut base, viewed in the undercut cross-section, is at least partially curved, and the curvature of the undercut base differs from the first transition curvature and/or the second transition curvature.

Abstract: A pull or push rod for a molding machine having a groove. The groove is suitable for forming a positive-locking connection with a locking nut, by which positive-locking connection forces are transmittable between the locking nut and the pull or push rod. The groove has a groove cross-section, has at least two groove flanks, and has a groove base. The at least two groove flanks, viewed in the groove cross-section, each transition with at least one transition curvature into the groove base. The groove base in the groove cross-section is at least partially formed as a curvature, and the curvature of the groove base differs from the transition curvatures of the groove flanks.

Abstract: A system. The system includes a wheel, a tire, a plurality of pressurized load cells and a sleeve member. The wheel includes a first flange portion, a second flange portion and a barrel portion positioned between the first and second flange portions. The tire is mounted to the wheel. The wheel and the tire cooperate to define a tire cavity. The tire includes a first beaded portion and a second beaded portion. The plurality of pressurized load cells are positioned within the tire cavity. The sleeve member is positioned within the tire cavity and surrounds and constrains the plurality of pressurized load cells.

Abstract: Tire assembly for a bicycle rim, including a wheel tire with a tread surface and two tire beads, an inner tire disposed within the wheel tire, a tube disposed within the inner tire, and a valve arrangement for filling the tube and an intermediate space between the rim and the wheel tire with different air pressures. The inner tire in the filled and mounted condition bears on the tire beads of the wheel tire and presses the beads against the rim. The inner tire has a first through opening which in the mounted condition communicates with the intermediate space, and an insert part disposed between the rim and the tube and between the tube and the inner tire. The insert part forms an air duct between the rim and the tube and between the tube and the inner tire up to the through opening in the inner tire.

Abstract: A bicycle wheel includes a rim, a tire and a tire retainer. The rim has an annular bridge and a pair of annular flanges with tire retaining ridges. The annular flanges extend outward from the annular bridge to define an annular space. The tire has a pair of annular bead portions that are engaged with the tire retaining ridges of the rim, respectively. The tire retainer is disposed within the annular space. The tire retainer has a support body that is disposed between the bead portions of the bicycle tire. The support body has an axial width that is dimensioned such that the bead portions of the bicycle tire are prevented from disengaging from the tire retaining ridges of the wheel rim, respectively, while the bicycle tire is disposed in the annular space.

Abstract: A system. The system includes a wheel, a tire and a bead lock assembly. The wheel defines an axis of rotation and includes an outboard wheel flange and an inboard wheel flange. The tire is mounted on the wheel, and the tire and the wheel cooperate to define a tire cavity. The bead lock assembly is within the tire cavity, and has a radially outermost surface which is a first distance from the axis of rotation. At least one of the outboard and inboard wheel flanges has a radially outermost surface which is a second distance from the axis of rotation. The first distance is greater than the second distance.

Abstract: In accordance with embodiments of the present disclosure an inner tube comprises an encasing configured to hold air. The encasing comprises a reinforcing structure configured such that, as the encasing is inflated, an overall major diameter of the inner tube is reduced. The inner tube also comprises an inflation valve coupled to the encasing and configured to allow inflation of the encasing. Further, the inner tube comprises a pressure valve coupled to the encasing. The pressure valve is configured to be biased closed and allow air to leave the encasing when a differential pressure between inside of the encasing and outside of the encasing reaches a threshold pressure level. In the same or alternative embodiments, the encasing also comprises a reinforcing structure configured such that, as the encasing is inflated, an overall major diameter of inner tube is reduced.

Abstract: A rim lock device, having a main body having an outer surface, and a bolt. The outer surface of the main body includes a plurality of recesses which are configured into a matrix structure. Also a rim lock device, having a main body with a body front wall and a body rear wall having teeth which are tapered and angled teeth. Also a method of locking the position of a tire bead from rotating relative to a wheel rim during acceleration and deceleration.

Abstract: A tire/wheel assembly comprising a wheel having a rim, a pneumatic tire mounted on the rim of the wheel and a noise reduction interior member disposed in the cavity of the pneumatic tire. The noise reduction interior member includes left and right elastic rings fitted to the rim and an annular body attached between the elastic rings. The annular body is configured such that an annular cavity portion surrounded by the noise reduction interior member and the pneumatic tire has a cross-sectional area that varies in a circumferential direction of the tire.

Abstract: A tire insert system for assembly into a continuous ring during its positioning within a tire, and is supported on a wheel web between the wheel flanges where the continuous tire insert ring is mounted to the wheel to support a tire load for a significant travel distance should that tire lose air. The four tire insert segments each include an arcuate shaped outer portion that, when assembled end to end, form the insert ring, and each tire insert segment includes an anchor plate that is an arcuate section when assembled side by side with other anchor plates forms a flat disk having an open center portion, which anchor plate is secured to the tire insert on its top end and includes mounting holes formed in its lower portion for receiving bolt type fasteners fitted therethrough and through forward and rear wheel sections, sandwiching the anchor plates therebetween, forming the tire insert ring in the tire during a mounting of the tire between wheel flanges.

Abstract: A runflat tire system comprising a pneumatic tire, a wheel rim and a support ring disposed in a tire cavity is disclosed, wherein the wheel rim comprises a pair of axially spaced bead seats, and a support-ring seat between the bead seats; the support ring has an inner circumferential surface fitting to the above-mentioned support-ring seat, and an outer circumferential surface contacting with the inside of a tread portion of the tire mounted on the wheel rim when the tire is deflated; and one of or alternatively each of the support-ring seat and the inner circumferential surface is provided with an ordered uneven surface which can reduce a friction in the axial direction between the inner circumferential surface and the support-ring seat, while maintaining or increasing the friction in the circumferential direction.

Abstract: In this safety support comprising a segmented ring (6), whose segments (6a, . . . , 6f) are connected by linking means (9), at least one of the linking means (9) comprising at least one male element (26) and at least one female portion (27) suitable for fitting one inside the other by a relative movement of two segments in the circumferential direction of the ring, the at least one linking means (9) also comprises a lever mechanism (28) comprising at least two link arms (29, 31) of different lengths articulated on one another and each at one respective end of the two segments so that the lever mechanism acts so as to bring the two segments closer to one another when the male element (26) is partially engaged in the female portion (27) and when an articulation (38) common to two link arms of the lever mechanism (28) is moved substantially radially relative to the center (C) of the ring (6) in response to an axial movement of the ring relative to the rim.

Abstract: A tire/wheel assembly includes a wheel having a rim, a pneumatic tire fitted to the rim of the wheel and a run-flat support member, the pneumatic tire having a tread surface and a hollow space, the tread surface having circumferential grooves extending in a circumferential direction of the tire, the run-flat support member being disposed in the hollow space of the pneumatic tire and having an annular shell and elastic rings, the annular shell comprising a support surface formed radially outward having a convexly curved surface portion with an annular apical line or face and two leg portions formed radially inward, the elastic rings supporting the two leg portions on the rim. The apical line or apical face of the convexly curved surface portion is offset in a direction of a center axis of rotation of the wheel so as not to be located in a position corresponding to the circumferential grooves when viewed from a radial direction of the wheel.

Abstract: A tire/wheel assembly, wherein bent parts (4f) bent outward are formed at the leg end parts of an annular shell (4), an inclination angle (?1) of a line segment L1 extending from the axially outer end (P3) of the bent part (4f) through the apex (P1) of a hump (1f) on a rim relative to a direction perpendicular to a tire axis is set to within ±5° in a cross section orthogonal to the circumferential direction of the annular shell (4), the area (4s) of the annular shell equal to the height (B) of at least 35% of the height (A) from the radially inner end of the annular shell is formed linearly, the inclination angle (?2) of an extension line (L2) along the inner surface of the linear area (4s) relative to the direction perpendicular to the tire axis is 15 to 30° in axial inner side, and the extension line (L2) passes between the apex (P1) of the hump (1h) and the toe tip (P2) of a tire bead part.

Abstract: A run-flat tire-wheel assembly having, in an inside cavity of the tire/rim, a run-flat support formed by a ring-shaped metal shell and rubber elastic members or a ring-shaped metal shell and rubber elastic members composed of a rubber composition containing 100 parts by weight of a peroxide cross-linkable rubber and 1 to 30 parts by weight of a peroxide cross-linking agent, wherein the contact surfaces of the ring-shaped metal shell with the rubber elastic members are subjected to an electrolytic polymerization with 6-mono- or di-allylamino-1,3,5-triazine-2,4-dithiol or its mono- or di-salt, whereby the bondability between the ring-shaped metal shell and rubber elastic members is improved.

Abstract: A bead lock including an insert casing and a bead spacer for providing an air passageway in a vehicle tire to be mounted on a wheel rim on which is located an insert valve and a rim lip for retention of the vehicle tire bead, the insert casing including an insert bead adapted to push against the tire bead and to hold the tire bead firmly against the inner surface of the rim lip, the inner wall of the vehicle tire and the outer surface of the insert casing defining an internal tire space to be pressurized for inflation of the vehicle tire or depressurized for the deflation of the vehicle tire via the insert valve, the tire bead and the insert bead interposed between the internal tire space and the insert valve, the bead spacer extending from the insert bead to an insert valve area corresponding in use to the insert valve location whereby to define at least one air passage for communication of the internal tire space with the insert valve, wherein the bead spacer is made of material sufficiently flexible to sub

Abstract: A tire/wheel assembly, wherein a run-flat support body comprising an annular shell having an outer peripheral side as a support surface and an inner peripheral side formed in fork-shaped open legs and elastic rings supporting the end parts of the fork-shaped open legs on a rim is inserted into the hollow part of a pneumatic tire, bent parts are formed at the end parts of the annular shell where the annular shell is connected to the elastic rings, the shape of the elastic ring in a cross section orthogonal to the circumferential direction of the elastic ring is formed into a barrel shape having bulged both side faces, the maximum thickness (A) of the elastic ring in a cross section swelling from a tangential line (L1) extending from the apex (P1) of a hump on the rim so as to abut on the axial inner end (P3) of the bent part is 3 to 6 mm, and the maximum thickness (B) thereof swelling from a tangential line (L2) extending from an intersection (P2) between a line segment (L3) parallel with a tire axis through t

Abstract: Disclosed is a mounting structure of a tire monitoring device, in which communication failures due to a conductive support core member can be prevented. The tire monitoring device which transmits information of the inside of a tire by using radio waves is mounted on a conductive support core member which is placed within the cavity of a pneumatic tire and is formed in a hollow structure over a peripheral portion of a rim. At this time, the tire monitoring device is disposed on a sidewall of the support core member or in a channel on a load support surface of the support core member, and a transmission antenna of the tire monitoring device is disposed outside of the support core member.

Abstract: The present inventions are a run-flat tire and a tire/wheel assembly in which the workability of the tire-to-rim fit has been improved while including a core-type run-flat support member. The tire/wheel assembly is formed by fitting a pneumatic tire into a wheel rim. In the tire/wheel assembly, the run-flat support member constituted of a circular shell and elastic rings is inserted into a cavity of the pneumatic tire, in which the circular shell has a support surface thereof extended toward the periphery of the tire and leg portions along each end of the support surface, and the elastic rings are attached to the leg portions of the circular shell. Meanwhile, stages extending in a tire circumferential direction are formed on the inner walls of a pair of right and left beads in the pneumatic tire, and the elastic rings are locked into the stages.

Abstract: Mounting rim designed to form a rolling assembly with a tire and an inflatable and inflated tread bearing support, and comprising on each side of the equatorial plane a rim seat inclined outwards and extended axially outwards by a projection or hump, characterized in that it comprises, axially towards the inside between each rim seat for the tire beads and the equatorial plane XX?, at least one truncated conical seat inclined inwards and designed to receive a bead of a tire tread bearing support. The rolling assembly is used either with a bearing support in the form of a toric membrane inflated hard which retains its shape and pressure if the tire is punctured, or with a bearing support in the form of a membrane that can expand in the event of a tire puncture and entirely fill the internal cavity of the tire.

Abstract: A tire/wheel assembly in which a run-flat support member is inserted into a cavity of a pneumatic tire, the run-flat support member including a circular shell in which the outer circumferential side thereof is used as a support surface and the inner circumferential side thereof is opened to have two leg portions, and elastic rings supporting the ends of the two leg portions on a rim. Protruding portions are provided, respectively projecting sideways on both sides of the circular shell, and the protruding portions come to contact with an inner surface of a bead of the pneumatic tire during run-flat traveling.

Abstract: A buttress to be placed between beads of a pneumatic tire which in turn are clamped against the buttress by adjoining wheel rims. The buttress is a hollow unibody construction formed of plastic material by a rotary molding procedure. The buttress is first formed flat and then bent to a circular shape with the ends pinned together, or as a pair of flat members bent and joined together. It includes a plurality of hollow posts that extend between longitudinal side rail, the side rails being abutted by the rims when installed.

Abstract: An emergency support member is provided for a vehicle wheel and tire assembly having a pneumatic tire that is mounted on a wheel rim. The support member is embodied as a dished annular member within the tire, and has an emergency support surface for supporting the tire in the event of damage thereto. The annular member extends axially from the center of the rim and symmetrically over a portion of the width thereof. The annular member has a curved contour, with the two axially outer wall regions being supported upon the wheel rim via annular support elements. The dished annular member is embodied as a split ring that is not closed over its periphery, and is provided with a closure device for closing off the slit. The closure device includes two flanges that extend essentially radially inwardly relative to the rim. The closure device also includes at least one locking clamp for connecting the flanges.

Abstract: An assembly including a deformable, inextensible tread-bearing support S, which can be slipped on to a suitable rim bearing surface (11). The bearing surface (11) extends axially towards the inside of a first rim seat (13′), which is in turn extended to the outside by a protrusion or hump (15′) of low height. The first rim seat (13′) is inclined towards the outside. A second rim seat (13″) having, viewed in meridian section, a generatrix, the axially inner end of which is located on a circle of diameter D″A greater than the diameter of the circle on which is located the axially inner end D′A of the first rim seat (13′). The two seats being, axially to the inside, extended by frustoconical portions (17, 14) of a height at least equal to 0.01 times the minimum diameter of the bearing surface (11), and the generatrices of which form with the axis of rotation angles &agr; at least equal to 45°.

Abstract: A tire breaker and anti-knock arrangement includes a supplementary bearing structure formed of two parallel supplementary bearing loops supported inside the tire between two inward lips at two sidewalls of the tire for enabling the driver to keep driving the car to a repair shop upon a tire explosion due to an accident.

Abstract: An assembly of a rim and a closed toroidal tire. The tire includes a tire casing and a ring, defining a tight chamber. The ring provides a mounting base on the rim and forms a sleeve designed to rest on said rim in mounting position. The ring includes a protuberance having a locking surface, intended to be engaged in a complementary groove arranged on the rim in order to oppose any relative movement between tire and rim axially in at least one direction. The ring has such a degree of flexibility that a pressure reduction of the chamber causes a displacement of said protuberance toward a larger radius. The tire can, for example, be fitted on the rim, and then the vacuum can be eliminated so that the protuberance will be engaged in the groove.

Abstract: A vehicle wheel, comprising a rim, a disc, a tire defining with the rim a circumferential cavity C, and at least one resonator suitable for attenuating a natural resonant frequency of said cavity, said wheel also comprising a safety support, for supporting the tread of this tire from the inside in the event of loss of inflation pressure, said support providing at least one of the walls of said resonator. The invention also provides for the safety support comprising resonators.

Abstract: An emergency support member is provided for a vehicle wheel and tire assembly having a pneumatic tire that is mounted on a wheel rim. The support member is embodied as a dished annular member within the tire, and has an emergency support surface for supporting the tire in the event of damage thereto. The annular member extends axially from the center of the rim and symmetrically over a portion of the width thereof. The annular member has a curved contour, with the two axially outer wall regions being supported upon the wheel rim via annular support elements. The dished annular member is embodied as a split ring that is not closed over its periphery, and is provided with a closure device for closing off the slit. The closure device includes two flanges that extend essentially radially inwardly relative to the rim. The closure device also includes at least one locking clamp for connecting the flanges.

Abstract: Vehicle wheel including a wheel rim and pneumatic tire having a tread, two side walls and two beads, is mounted to the wheel rim. An emergency running support body is arranged within the pneumatic tire. The emergency running support body comprises a ring-shaped body. The ring-shaped body comprises a first axial outer wall region, a second axial outer wall region, and an emergency running support surface adapted to support the pneumatic tire in an emergency running condition. A first ring-shaped support element is arranged to support the first axial outer wall region. A second ring-shaped support element is arranged to support the second axial outer wall region. At least one of the first and the second ring-shaped support elements comprises a multi-layered structure.

Abstract: A run-flat device for a motor vehicle, the device being designed to be fitted clamped on a standard rim having lateral flanges for holding the beads of a tire, wherein the device is constituted by at least two coaxial annular pieces engaged one on the other, the radially-inner piece being of relatively rigid material and forming an open ring around the rim, the radially-outer piece being based on an elastically deformable material and comprising a one-piece continuous surrounding the radially-inner annular piece and having an inside diameter that is substantially equal to or greater than the outside diameter of a lateral flange of the rim.

Abstract: A wheel with a pneumatic tire, with the tire cavity divided into two fluid-filled reservoirs connected with a passageway (orifice, capillary, or porous material) having a required degree of flow restriction in order to generate a desired damping action when the tire is subjected to a vibratory exertion. The flow in the passageway is maintained at a laminar regime.

Abstract: A composite wheel is used with a pneumatic tire having at least one bead. The composite wheel includes a circular drum having an elongated skirt extending out from the circular drum substantial perpendicular thereto along the periphery of the circular drum. A tire bead retention member receives the bead of the pneumatic tire and is then removably secured to the elongated skirt with a nut and bolt fastening system. The removability of the tire bead retention member enables the pneumatic tire to be dismountable from the composite wheel. Run flat devices are attachable to the tire bead retention members prior to mounting the drum body which allow the pneumatic tire to run without air without destroying sidewalls of the pneumatic tire.

Abstract: A composite wheel is used with a pneumatic tire having at least one bead. The composite wheel includes a circular drum having an elongated skirt extending out from the circular drum substantial perpendicular thereto along the periphery of the circular drum. A tire bead retention member receives the bead of the pneumatic tire and is then removably secured to the elongated skirt with a nut and bolt fastening system. The removability of the tire bead retention member enables the pneumatic tire to be dismountable from the composite wheel. Run flat devices are attachable to or formed with the tire bead retention members prior to mounting the drum body which allow the pneumatic tire to run without air without destroying sidewalls of the pneumatic tire.

Abstract: An annular element (3) placed between the two beads (12) of a tire (P) moed on a flat-base rim (J). In order to be able to use the tire on said rim without an inner tube, the annular element, in order to assure the tightness of the assembly, has in meridian section a contour and, in particular, two lateral sides (30) such that the clamping s between the ring and the beads, which is zero or even negative at the base of the ring, increases then slightly over a certain radial distance h.sub.1 and then more greatly over a distance h.sub.2 radially adjacent the first distance.

Abstract: An arrangement for retaining a tire on a vehicle wheel. The arrangement has a device for locking a tire against the wheel rim and pressing the tire beads against the rim flanges and rim seats. The device for locking the tire includes a plurality of clamping jaws disposed in spaced-apart relation to one another about the rim. Each jaw is rotatable about a clamping bolt. The rim of the wheel is provided, on its bottom, with fixing lugs. The jaws, when in an operative position, are applied against the fixing lugs to prevent the jaws from rotating about their clamping bolt.

Abstract: A tire locking device installed inside the cover of a tire mounted on a wheel rim and exerting pressure on the beads of the cover, urged against the flanges of the rim, includes a metal strip shaped as a cylindrical ring which is split parallel to its generator lines, is provided on both circumferential edges with extrusions made of an elastomer type material. The extrusions are split level with the split in the metal strip, and a means for connecting the edges of the strip with the intrusions form an annular lock of total width which is greater than the nominal spacing between the inside faces of the beads of the cover in which the device is mounted.

Abstract: A device (20) for retaining the beads of a tire against the flanges of a rim. The bead retainer device (20) is capable of being manufally deformable in the axial direction. The bead retainer device is also capable of being manually deformable in the circumferential direction such as to be collapsible.

Abstract: A tire filter assembly (15, 400) for a central tire inflation system (10) having fluid communication (403) from the exterior to the interior of the pressurized chamber (74) of an inflatable tire (12). The assembly includes filter means (15) mounted to a cylindrical sleeve-type bead lock (400) inside the interior pressurized tire chamber (74). The location of the filter inside the tire permits it to have a relatively large area through which air can flow, and to prevent rubber particles that come off the inside of the tire from entering the central inflation system. The filter assembly is affixed by means of an adhesive (11) or a molding material to a groove (17) provided in the bead lock, and/or by mechanical means.

Abstract: A resilient wheel has a rim (4) with an airtight annular channel (18) separated from the tire air space (19) by an annular elastomeric member (16). The sealed annular channel (18) is in pressure communication with the tire air space (19) and acts as a buffer absorbing abrupt transient pressure changes produced in the tire air chamber (19).The elastomeric member (16) is seated in depressions (5) in the rim surface stabilizing the beads (6) of the tire mounted on the rim (4). Valve (30) in the rim (4) allows inflation of the annular air chamber (18), providing selective control for the resiliency of the wheel. Continuous radially extending portions (34) of the elastomeric member (16) serve to hold the tire beads (6) in place, the tire beads (6) residing between the extending portions (34) and radially extending portions of the rim structure.

Abstract: A device for locking the beads of a tire against flanges of a multi-piece rim comprises two main parts. The first part having an approximately cylindrical shape is formed essentially of a flexible material. It is strapped by a second part which is nonextensible radially.

Abstract: A bead lock for locking the bead portion of a pneumatic tire against the outer periphery of a vehicle wheel is adapted to seat in the vehicle wheel. In a first embodiment, the bead lock includes first and second annular members. The first annular member includes an endless band of aeromatic polyamide fibers. The second annular member has radially inner and outer portions and interconnecting resilient side portions. The first annular member is received and retained within a circumferentially extending slot formed in one of the outer portions to urge the side portions against the bead portions of the tire. The second embodiment includes a pair of locking rings, a pair of resilent sealing rings and a clamping mechanism for selectively clamping the locking and sealing rings and the bead portions together against the outer periphery of the wheel.

Abstract: A tire mounting device utilizing a locking sleeve wherein the sleeve has an inner diameter substantially equal to the outer diameter of the bottom of the rim so as to encircle the rim and a width slightly greater than the internal separation of the tire beads when the latter are applied to the flanges of the rim, the sleeve being provided with a cross channel to permit the passage of an air passage.

Abstract: A bead lock device includes a plurality of bows and a frame for connecting the bows together to form an annular structure. The structure is placed in the interior of a tire which is placed onto a wheel. Wheel flanges compress the bows which, in turn, effectively lock the tire beads against the wheel flanges. A method of making a bead lock device by attaching bows onto a pair of flexible rods and joining the rods at their ends to form hoops is also disclosed.

Abstract: Nearly circular, generally C-shaped beadlocks, which are made from a generally rigid plastic material, are slightly flexible so that they can be inserted within a tubeless tire and snugly around the annular central section of a supporting tire rim of either the split rim or drop center variety. The confronting ends of the C-shaped beadlocks are secured together by releasable clips, which function to prevent the ends of the beadlock from separating during use at high speeds or at low speeds in run flat operation. At least certain embodiments of the beadlocks have a plurality of spaced ribs projecting from each side thereof to engage and retain the beads of a tire against dislodgment of a rim.

Abstract: A tire mounting device utilizing a locking sleeve wherein the sleeve has an inner diameter substantially equal to the outer diameter of the bottom of the rim so as to encircle the rim and a width slightly greater than the internal separation of the tire beads when the latter are applied to the flanges of the rim, the sleeve being provided with a cross channel to permit the passage of an air passage.

Abstract: A non-pneumatic insert tube for a tire adapted to be mounted upon a circular rim. The insert tube is an elongated resilient plastic cylinder having a thin wall defining a continuous bore which extends throughout the entire tube length. A sequence of spaced partial cuts extends through the thin wall of the tube with the sequence of partial cuts being symmetrically centered about the outer periphery of the tube when formed into a single coil hoop for insertion into a tire and with an uncut portion of the tube being symmetrically centered about the inner periphery of the tube which is to be seated adjacent the rim. In certain species a reinforcing web, having a single web or a web of two or more intersecting cross legs, is disposed within and extends across the bore of the tube from sidewall to sidewall and is integrally joined to the opposite sidewalls. The single web and all cross legs are usually placed in tension in response to vertically applied loads.

Abstract: A support fastened to a wheel rim within a tire cavity to resist the flattening of the tire in the case of a blow-out is formed of an elastic radial support element arranged between the equatorial plane of the tire and the outside sidewall of the tire and of an elastic axial holding element arranged between the radial support element and the outside sidewall of the tire. A terminal annular protuberance of the axial holding element has a developed circumferential length greater than that of the periphery of the radial support element and is located axially towards the outside with respect to the connection of the axial holding element to the radial support element.

Abstract: A split tire arrangement (10) for use with a closed torus tire (14), includes a first and second rim halves (11,12) each respectively having a first tapered diameter (23) and a second smaller tapered diameter (24) located on an inner side (21) of the split halves adjacent the first tapered diameter. A split band (13) is located on the second tapered diameter (24) and has a radially outwardly extending center portion (38) to locate the closed torus tire (14) relative to the split band (13) with the edges (34,36) of the split band terminating under the roll hoops (16,17) of the closed torus tire (14). This provides an arrangement for mounting the closed torus tire (14) to the split rim arrangement (10) without requiring the high forces of rubber sliding on metal.