Abstract: Pneumatic vehicle tire having a profiled tread (3), side walls (5) and rounded tire shoulders, wherein, when the tire is mounted on a rim, the tread (3) has, in a first operating state with no load, a first contact surface and outside of the contact surface has profiled shoulder portions (4) extending in the direction of the side walls (5). The shoulder portions (4) have blocks (8a, 8b), between which grooves (9a, 9b) extending in the direction of the side walls (5) are provided and which are provided with sipes (11, 12, 13) and/or grooves extending in the direction of the side walls (5), wherein, in at least one further operating state of the tire mounted on the rim, the tire has a further contact surface, which is wider than the first contact surface and at least partially includes the shoulder portions (4) and the profiling thereof.

Abstract: A pneumatic tire includes: an annular structure that is cylindrical and metal where at least an outer side surface in the radial direction is a rough surface; a tread rubber layer that will become a tread portion provided along a circumferential direction of the annular structure on an outer side of the annular structure; and a carcass portion including fibers covered with rubber, provided on at least both sides in a direction parallel to a center axis of the cylindrical structure including the annular structure and the tread rubber layer.

Abstract: A pneumatic tire 1 including a cylindrical annular structure 10; a rubber layer 11 that will become a tread portion, provided along a circumferential direction of the annular structure 10, on an outer side 10so of the annular structure 10; and a carcass portion 12 including fibers covered with rubber, provided on both sides 2S in a direction parallel to a center axis (Y-axis) of a cylindrical structure 2 including the annular structure 10 and the rubber layer 11. In a meridian cross-sectional view of the structure 2, an outer side 11so of the rubber layer 11 and the outer side 10so of the annular structure 10 have the same form.

Abstract: A device for preventing slipping of a vehicle which includes spikes which are inserted between tires of a double wheel, a connection member which couples the spikes to each other, and a fastener which is provided on opposite ends of the connection member. The fastener includes a catch which is connected to a first end of the connection member, and a clamp which is connected to a second end of the connection member, and to which the catch is locked. When the catch is locked to the clamp to attach the device to the tires, the catch is disposed inside the connection member in a space between the tires, thus preventing the catch from coming into contact with a road surface when the vehicle travels.

Abstract: A tire for a vehicle wheel, capable of withstanding the load at low pressure or zero pressure, includes a carcass, a crown, two axially opposed sidewalls, two bead cores, two compression-resistant annular reinforcing elements, and, optionally, a belt structure. The annular reinforcing elements are made of material having high rigidity and very low elastic hysteresis. Each annular reinforcing element is in or adjacent to a zone joining the crown to a sidewall and in a first plane parallel to an equatorial plane of the tire. Each bead core is in a second plane parallel to the equatorial plane. The distance between the first planes is greater than or equal to the distance between the second planes. A camber of an arc between a bead core and an intersection of a carcass ply line with a cylindrical surface passing through the reinforcing elements does not exceed 15% of the arc length.

Abstract: A protective tire liner positioned between the bicycle inner tube and the bicycle outer tire of a bicycle wheel. The protective tire liner comprises a thin lightweight puncture resistant flexible strip of metallic material, preferably of recycled aluminum to protect the inner tube from puncture damage. The lightweight puncture resistant flexible strip of recycled aluminum has a thickness of 0.002?-0.035?. The protective tire liner also includes polyurethane protective tape which is applied to major first and second surfaces of the lightweight puncture resistant flexible strip of recycled aluminum to give added protection against puncture and enhance the strength and durability of the recycled aluminum strip. The polyurethane protective tape prevents the puncture resistant flexible metal strip from accordianing and covers the edges of the puncture resistant flexible metal strip to prevent it from abrading the inner tube.

Abstract: A method of manufacturing a pneumatic tire comprises making a rubber-coated cord-member by coating one or more cords with rubber, and making the tread reinforcement by putting together a plurality of the cord-members around a drum into a cylindrical network of the cords, so that the cords make a first array of cords inclining in one direction with respect to the tire equator and a second array of cords inclining in one direction which is opposite to the cords of the first array with respect to the tire equator. It is possible that the cord-members are woven. It is also possible that the cord-members are not woven and, in the crossings of the cords, one of the two cross cords is curved along the other cord.

Abstract: A runflat pneumatic tire has a tread stiffening member radially inward of the tread 12. The tire has a deflected section height H30 under load at 30 psi inflation and a deflected section height H0 at 0 psi wherein the deflection D30 are equal to or less than D0−D30 and the net contact area at 0 psi has a perimeter dynamic contact shape of at least U shaped or rectangular.

Abstract: A radial ply tire for vehicle wheels has a torus-shaped body of elastomeric material which contains a belt-shaped reinforcing insert which has in the region underneath the tread of the tire a strip which is stretchable, pre-loadable and, under the influence of external forces, restorable in the circumferential direction of the tire. The strip of the reinforcing insert contains apertures extending largely transversely with respect to the circumferential direction of the tire. The apertures extend only partially through the strip in a transverse direction and are arranged in rows, the apertures being parallel and offset with respect to one another in successive rows. Between them there are transversely extending unbroken portions which provide the desired transverse stiffness of the belt.

Abstract: The tires for vehicles possess under their tread a belt which extends in the circumferential direction. At least one, preferentially two, layers contain, as strengthening and stabilizing means, foils or sheets with direction-dependent rigidity, which possesses its highest value in a preferred direction. The foils or sheets are so arranged that the preferred direction is oblique to the circumferential direction. Preferentially, the direction-dependent rigidity is realized with a waving or crimping. Through this alignment, which is arranged oblique to the tire circumference, the stabilizing effect of the waving is seen in both the longitudinal as well as the oblique directions. Thus, in comparison with the usual belted tires, less material is needed in tire production, and these tires are both light, but nevertheless possess good driving characteristics and superb rolling resistance.

Abstract: A belt ply for pneumatic tires including at least one ring of sheet or strip material extending in the circumferential direction of the tire. These rings include extension zones formed of undulations, projections or recesses, extending transversely to the circumferential direction of the tire. The rings additionally include notches or recesses of defined length extending in the circumferential direction to improve the flexibility of the tire in the extension zones.

Abstract: A pneumatic tire having a multi-ply reinforcing belt around a radial carcass. The plies of the belt are reinforced by non-metallic cords and the belt is protected from damage by an outer steel cord reinforced ply.

Abstract: When this airplane tire is mounted on its rim, its carcass reinforcement has a relative camber of convexity before inflation which is at most equal to 0.17 in the crown and at most equal to to 0.20 in the sidewalls. After inflation, the equilibrium curve of this carcass reinforcement is, at the level of the shoulders of the tire, located radially outwards of its equilibrium curve in the tire before inflation.The cables of the lateral plies of the tripartite crown reinforcement are very extensible and have a high coefficient of contraction under the heat at the temperature of vulcanization of the tire.

Abstract: The tripartite crown reinforcement of this tire is subdivided into a median portion composed of two plies of cables whose extensibility is practically zero, flanked by two lateral portions each composed of three plies of cables whose extensibility is very great. When this tire is not inflated, the edges of its tread resume the falling shape which has been imparted to them in the vulcanization mold.

Abstract: A tire, particularly for aircraft, has a crown reinforcement formed of plies of circumferential cables having a relative extensibility upon rupture of at least 8%, preferably between 10% and 26%, when the vulcanized tire is mounted on its service rim but not yet inflated, and a relative contraction under the effect of the heat at the temperature of vulcanization of at least 1.25%, preferably between 2% and 8%.

Abstract: Passive, self-energizing means for increasing the load carrying capabilities in the depressurized condition of a banded radial run-flat tire system. In this invention, an inner tube inflated to a pressure of about 3-5 psi is positioned on the wheel rim inside the tire which is inflated to its normal pressure of about 30 psi. Because of this pressure differential, the inner tube is compressed to about one-sixth its volume at ambient pressure and in normal operation it rides out of contact with the inside walls of the tire casing without interaction therewith. If the tire is depressurized because of a puncture or other cause, the release of tire pressure on the inner tube results in the expansion of the tube outwards to maintain the curvature in the sidewalls, which curvature enhances the load capacity of the tire in the depressurized condition.