Abstract: A vehicle wheel having a rim, or a rim of a vehicle wheel, is provided wherein the rim consists of a fiber-reinforced plastic material in the form of several layers of a fiber-reinforced semi-finished plastic product. The layers are shaped to form a finished component in a press while heat is supplied. The rim conventionally consists of a rim well, whose two sides are adjoined by a rim shoulder, which transitions into a rim flange. The rim well is formed by several layers of a base laminate, which extends to the rim flange, between which layers further layers are inserted in the area of the rim shoulder as well as of the rim flange. The further layers have an essentially tangential fiber alignment.

Abstract: Circumferential recesses have: first blocks protruding outward in the tire tread width direction, the first blocks having radial outer end sections and radial inner front end sections; and second blocks protruding outward in the tire tread width direction, the second blocks having radial inner end sections and radial outer front end sections. The radial inner front end sections of the first blocks and the radial outer front end sections of the second blocks are separated from each other in the tire circumferential direction or in the tire radial direction.

Abstract: The semi-hollow pneumatic tire (10) has an axis of revolution and comprises a sole (20) capable of being mounted on the periphery of a rotary support (12), a tread (24) opposite the sole (20), and two sidewalls (26) each connecting the sole and the tread so as to form together a cover (28) which defines an uninflated chamber (30) inside the pneumatic tire.

Abstract: A tire comprising an envelope made at least partly of rubber, defining an internal annular volume and having a crown (1), which defines a tread, two sidewalls (2) joined to the crown (1), and a supporting structure (4). The supporting structure (4) is pressurized and divides the annular volume of the tire into a plurality of compartments (400) or cells, and the sidewalls (2) are connected to or integral with the supporting structure (4).

Abstract: A pneumatic tire of the semi-hollow type includes a casing having an uninflated inner volume and including an inner wall provided with a retaining bead and a convex outer wall forming the tread of the tire, the inner wall and the outer wall of the tire being connected by two annular borders. The inner wall of the tire is concave so as to surmount a convex outer wall of the peripheral seat of a rim of a wheel, this outer wall being provided with a peripheral slot adapted to accommodate the retaining bead of the tire.

Abstract: A pneumatic radial tire for a passenger vehicle has a ratio W/L where W is a cross-sectional width and L is an outer diameter. The tire also has a belt-reinforcing layer having a high rigidity and disposed between a belt and a tread.

Abstract: A pneumatic tyre of the semi-hollow type includes a casing having an uninflated inner volume and including an inner wall provided with a retaining bead and a convex outer wall forming the tread of the tyre, the inner wall and the outer wall of the tyre being connected by two annular borders. The inner wall of the tyre is concave so as to surmount a convex outer wall of the peripheral seat of a rim of a wheel, this outer wall being provided with a peripheral slot adapted to accommodate the retaining bead of the tyre.

Abstract: A tire for a vehicle comprises, an inner wheel (12) adapted to mount to a vehicle having a radially outer surface (34). A first ring (16) is annular and concentric with the inner wheel (12) and has a radially outer (40) and a radially inner (38) surface. An annular inner-tube (14) is securedly positioned between the inner wheel (12) and the first ring (16). A second ring (18) has a radially outer surface (46) and a radially inner surface (44) adapted to mate with first ring (16). A tread (20) is secured to radially outer surface (46) of said second ring (18).

Abstract: A tubeless tire includes a tread portion, two sidewalls, an interfacing material integrally formed between the two sidewalls of a pliable, flexible yet reliable material, two beads extending outwardly from the tire, delimiting a section formed by the interfacing material, and an air valve stem provided on the interfacing material. The thickness of the interfacing material is substantially the same as the thickness of the two sidewalls, and the beads project outwardly of an outer surface of the interfacing material. The beads are disposed in a position such that when the tire is mounted on a rim, the beads will fit within the rim, when the tire is inflated on the rim using the air valve stem, the interfacing material will expand, causing the beads to fit tightly within the rim, thus fixing the tire on the rim, and there is no sealing layer within the tire.

Abstract: A pneumatic tyre (14) of the semi-hollow type comprises a casing having an uninflated inner volume and comprising an inner wall (42) provided with a retaining bead (52) and a convex outer wall (44) forming the tread of the tyre, the inner wall (42) and the outer wall (44) of the tyre being connected by two annular borders (46, 48). The inner wall (42) of the tyre (14) is concave so as to surmount a convex outer wall (34a, 34b) of the peripheral seat (22) of a rim (12) of a wheel, this outer wall being provided with a peripheral slot (36) adapted to accommodate the retaining bead (52) of the tyre. Application particularly to depth control wheels and/or ground pressing wheels for agricultural machines.

Abstract: A tire noise reducing system comprises a wheel rim, a pneumatic tire and a noise damper disposed in the tire cavity and made from a spongy material whose total volume is in a range of from 0.4 to 20% of a volume of the tire cavity. The maximum thickness of the damper between the base end surface and the top end surface is in a range of from 1.0 to 4.5 cm. The width of the base end surface is more than the maximum thickness. The width of the damper is not increased in the direction from the base end surface to the top end surface, and each of side faces defined as extending from the edges of the base end surface to the edges of the top end surface is at least partially provided with an aslant portion inclined at an angle theta of from 30 to 75 degrees with respect to the base end surface. The damper is preferably fixed to the inside of a tread portion of the tire.

Abstract: A heavy duty pneumatic tire, which allows the inside narrow-width belt layers to have a wide width as desired, and which suppresses the amount of strain generated at side edge portions of the belt layer to be sufficiently small thereby effectively preventing the separation of the belt layer, therefore the belt, in which two inside narrow-width belt layers 1B, 2B and two outside wide-width belt layers 3B, 4B, which have a larger width than the narrow-width belt layers, are sequentially disposed in the outer periphery side of the crown area of the radial carcass 5, wherein a portion of the wide-width belt layer 3B adjacent to the outer periphery side of the two narrow-width belt layers 1B, 2B, corresponding to side-edge vicinity of the narrow-width belt layer 2B of the outer periphery side is formed to be convex in radially outward direction.

Abstract: A pneumatic tire and a rim includes a noise damper, fixed to a tire inner surface or a rim inner surface with the upper surface facing a tire inner space, and extending in the tire circumferential direction. The noise damper is made of a sponge having a volume ranging from 0.4 to 20% of the volume of the tire inner space. The noise damper is a laterally long and flat, with a maximum thickness ranging from 5 to 45 mm and a width more than the maximum thickness. The upper surface extends along a wavy curve including a hilltop, valley bottoms on each side of the hilltop and slopes extending down to the respective valley bottoms from the hilltop. Each end of the upper surface is terminated at the valley bottoms or the slopes. A thickness from the upper surface to the bottom surface ranges from 1.0 to 15.0 mm.

Abstract: An assembly comprising a tire (P) without an inner tube, provided with two beads and intended to be mounted on a mounting rim (J) comprising seats (440) extended radially towards the outside by flanges (R), and a rubber sealing piece (E) arranged between said rim and said tire, characterized in that the diameters (DP) of the tire bead seats are greater than the corresponding diameters (DJ) of the rim seats (440), said tire (P) being provided integrally with the sealing piece (E) formed of three parts which are integral with each other, a central part (51), made of material impermeable to the inflation gases, being placed axially between the beads of the tire, this central part (51) being extended axially beneath the beads of the tire by edges (50) integral with said beads, means being provided for facilitating the separation of the central part from the lateral parts. A process for manufacturing such an assembly.

Abstract: A vehicle tire is made by inflating a vulcanized air tube to a slight pressure. Then, at least one thread element is wound around the transverse profile of the air tube to form a first carcass ply consisting of turns disposed consecutively in side-by-side relationship. A pair of annular anchoring elements is applied to the first carcass ply. Then, a second carcass ply is formed by winding at least one thread element so as to form turns disposed consecutively in side-by-side relationship along the circumferential extension of the air tube. Associated with the carcass structure is an annular element made up of a belt structure and a tread band. The carcass structure and annular element can be vulcanized separately from each other to make a tire having a tread band susceptible of replacement together with the belt structure.

Abstract: A urethane wheel including a hard urethane hub formed with a rim facing radially outward, and including stand-off ribs spaced equidistant thereabout. The stand-off ribs having centering notches opening radially outward. A thin wall polyurethane annular bladder with an interior annular stand-off skirt facing radially inward, contacting the centering notches of the stand-off ribs, and cooperating to position the bladder both radially and axially about the rim. The tire body is formed of soft polyurethane which surrounds the rim, encapsulates the bladder creating and integral cavity, and forms a contoured surface. A method of manufacturing the wheel which includes selecting a pressurized annular bladder, locating the bladder both axially and radially about the rim, forming a concentric bridge space having axial communication channels between the rim and bladder, and then pouring liquid urethane in a mold to form the tire.

Abstract: A vehicle wheel has a wheel rim with a radially inwardly positioned mounting surface and rim flanges connected axially to opposite ends of the the mounting surface. A pneumatic vehicle tire with a carcass including at least one carcass ply is provided. The pneumatic vehicle tire has a tread and two sidewalls. The pneumatic vehicle tire is mounted on the inner mounting surface of the wheel rim so as to substantially enclose the mounting surface of the wheel rim. The rim flanges have a radially outwardly projecting end portion serving as axial contact surfaces for a respective one of the sidewalls.

Abstract: A semi-pneumatic tire having a radially inner wall, first and second side walls, a radially outer wall coupled between the side walls, and a pair of rib members extending radially inwardly from outer wall for generally rigidifying said outer wall under operating loads. The side walls include a radially outer portion and a radially inner portion, the inner portion being thicker and more rigid than the outer portion such that the radially outer wall abuts against the inner portion of the side walls when the outer wall shifts radially inwardly under operating loads.

Abstract: A tire of the closed torus type is made solid with a rim due to bead wires hich hug a body tightly between themselves and the rim. At each lateral end of the rim, a shoulder is provided and extended by a seat. Diameter .phi..sub.s of the seat is always less than the shoulder diameter .phi..sub.c, and the shape of the bead wire assumes the shape of the rim over at least a 45.degree. sector.

Abstract: A method and apparatus for bonding a carcass for a tubed tire with a belt band that protects the radially inner side of the tire. The bonding surface is coated with a rubber solution, the belt band is placed thereon, and the bonding zone of tire and belt band is vulcanized. To achieve an increased resistance to separation between a biased carcass and a belt band, the zenith portion of the tire is reinforced with additional or overlapping plies in such a way that the rigidity of the outer half in the circumferential direction is greater than that of the inner half. While avoiding high speed accelerators, the rubber solution is provided with such a quantity of polymerizing agent that at the selected vulcanization temperature a vulcanizing time of between a third of a minute and ten minutes results. The tire, which is provided with the belt band and is in a position of use, is disposed onto a ring that is provided with a circumferential trough and is heated.

Abstract: A pneumatic tire produced of elastomers, especially cast or injection molded polyurethanes has an inner body in which a reinforcement is embedded and anchored by means of holding ropes. The inner body may be provided as a closed tubular body and is encased by an outer body which accommodates a belt and is outwardly provided with a tread. At its side walls, the outer body is provided with respective bead cores in which area, the inner body of the tire is connected to the outer body.

Abstract: The invention concerns a tubular-tire for bicycles and its assembly on a mounting-rim of the channel type--that is normally used in combination with the usual tires having a beaded edge.The tubular-tire of the invention has a tunnel-shaped carcass profile, in the plane of the cross-section, provided with a supporting-base which is substantially concave in the center and flat at the sides and with also having two sidewalls that join together in a substantially semicircular vault.The radially inner portion of the sidewalls is joined, at the supporting base, at an angle of less than 90.degree. and it is reinforced with a pair of reinforcing elements--one textile and the other either a textile fabric, or an elastomeric liner.

Abstract: A closed torus tire may be inflated by means of a circumferential conduit located at the interface of the tire and a rim. The closed inflation chamber of the closed torus tire communicates with the circumferential conduit via an air inlet passageway through the annular base region of the tire's carcass. An inflation valve passageway through the rim also communicates with the circumferential conduit to provide an air conduit means for inflating the closed torus tire.

Abstract: A tubular tire for cycles comprising a tubular toroidal body including an inner airtight tube to be inflated, the tire body or carcass being equipped, on the outer surface mating the wheel rim, with a rubberized tape having projecting portions such as profiles or prominences adapted to ensure a better engagement between the tire and the rim.The carcass is built by longitudinally joining together the edges of a rubberized fabric, the junction being radially external with respect to the tire and below the tread. The edges are joined either by overlapping or by abutment of the edges. In this latter case a reinforcement strip is provided between the carcass and the tread. An additional narrow strip protecting the junction is provided between the carcass and the inner or air tube.According to an embodiment the tire has a tunnel shaped cross-section obtained by suitably shaping the rubberized tape and the tire body when vulcanizing the tire.