Abstract:
A rim for a bicycle wheel with tubeless tire comprises a radially inner peripheral wall, a radially outer peripheral wall, two circumferential side walls which connect the inner and outer peripheral walls and form two ribs which extend beyond the outer peripheral wall, for anchorage of a tubeless tire. The inner and outer peripheral walls have two holes facing one another, within which an intermediate tubular element is mounted, connected to which is a valve body of a standard type normally used for bicycle wheels provided with inner tubes.
Abstract:
A bicycle rim includes side portions with an outer portion extending between the side portions to form a pair of outer corners, and a spoke attachment portion. The outer portion includes a pair of ridges spaced from the outer corners. The ridges preferably divide a pair of inclined surfaces. The side portions preferably include a pair of ground braking surfaces with a pair of sloping surfaces extending from the braking surfaces to a pair of outer side surfaces. A tubeless bicycle tire is mounted on the rim and includes a tread portion, a pair of sidewalls and a pair of beads. Each bead has an inner foot surface supported on one of the ridges. Preferably, each bead has a reinforcement member with a center axis. Each ridge is preferably located between one of the center axes and an inner edge of one of the inner foot surfaces.
Abstract:
A tire with a radial carcass reinforcement, when viewed in meridian section, includes a first bead, the seat of which is inclined towards the outside, the heel of the bead being axially on the inside and being reinforced by at least a reinforcement ring, the toe of the bead being axially on the outside and having a rubber wedge section made of rubber mix, the wedge being defined by two sides, the said rubber mix having a Shore A hardness greater than the Shore A hardness(es) of the rubber mixes located axially and radially above the bead ring and above the rubber wedge section. The carcass reinforcement is wound around the bead ring, passing from the inside to the outside to form an upturn extending along the radially inner side of the rubber wedge section, then along the side opposite the apex A, and then covering axially and radially, at least in part, the outside of the rubber section above the wedge section, the said upturn having an end located radially above the reinforcement annular ring of the bead and axially between the straight line P1 extending the radially outer side of the wedge section and the straight line P2 perpendicular to the axis of rotation and tangent at N to the said annular ring.
Abstract:
A complete vehicle wheel assembly includes a wheel with wheel rim having two opposed circular rim flanges and a tire having beads secured at the circular rim flanges. Each one of the circular rim flanges has a tubular hollow chamber with an annular opening. The tubular hollow chamber has a square or rectangular cross-section, and the annular opening has a width such that the bead is insertable into the tubular hollow chamber only in a rotated or deformed state after insertion of the bead, a remaining free space in the tubular hollow chamber is filled with a liquid, hardenable material.
Abstract:
A tire has a carcass reinforcement (1) which, when viewed in meridian secn, is wound in each bead B about a bead wire (2) coated with a rubber mix, passing from the heel to the toe of the bead B, the upturn (10) being located in a profile (3) of rubber mix in the form of a wedge defined by two sides (31 and 32) coming from an apex A located beneath the section of the coated bead wire (2). Advantageously the upturn (10) surrounds in its entirety the contour of the profile (3), forming either a first radially inner side (32), a lateral side (30), and a final radially outer side (31) or a first radially outer side (31), a lateral side (30), and a final radially inner side (32). The tire may form with different rims J high-performance assemblies in the event of travel at low or zero pressure, permitting simple mounting of the tires and optionally of bearing supports S for the tire tread on the rims J.
Abstract:
A spoke wheel comprises a rim for supporting a tire having rim guards, a hub located radially inwardly with respect to the rim, and a plurality of spokes integrally connected with the rim and the hub at outer and inner ends, respectively, and extending radially with respect to the hub. The laterally outer surface of the outer end of each spoke and the laterally outer peripheral edge of the rim are located laterally inwardly with respect to the tip of the laterally outer rim guard. Outer ends of main spokes of the spokes are provided with convex portions projecting laterally outwardly and extending in the radial direction, and a lateral position of the laterally outer tip of each convex portion lies in the range between a lateral position of the laterally outer peripheral edge of the rim and a lateral position of the tip of the rim guard.
Abstract:
A bicycle rim has rim a pair of rim flanges that defines a tire channel. A rim strip extends across the tire channel. The rim strip includes a pair of flange bumpers configured to cover the rim flanges. The flange bumpers each define a flange channel in which one of the rim flanges is received. A pair of safety humps define corresponding tire seating sections where a tire is seated when inflated. The rim strip further includes a drop seal that seals with the beads of the tire to facilitate seating of the tire during inflation.
Abstract:
A impact resistant rim is configured to soften or minimize an impact, thereby reducing the risk of pinching or otherwise flattening the tire and/or damaging the rim. This impact resistant rim further reduces the effects of an impact by maintaining the integrity of the rim during and following the impact. In this rim design, a shock absorbing cord is inlaid, molded, an/or otherwise embedded inside opposing leading edges of the rim. The shock absorbing cord is designed to elastically and/or plastically deform during an impact.
Abstract:
An aircraft landing gear (9) includes a wheel (1) having a wheel rim (3) on which a tire (4) is held. The gap (6) between the rim (3) and tire (4) is bridged and covered by a sealing element (7), which thereby presents a smooth surface to the air flowing over the wheel during flight of the aircraft (8). Thus, noise that would otherwise be generated by the interaction of air and the parts of the wheel (1) and/or tire (4) defining the gap (6) is reduced. Such noise reduction benefits may also be achieved by providing a tire (4) and wheel (1) so shaped that there is no gap (6) between the tire (4) and wheel rim (3).
Abstract:
A bicycle wheel rim adapted for mounting with a pair of tire rim portions of a tire includes a base portion and a pair of annular flanges. The base portion has an inner ring wall, and an outer ring wall surrounding the inner ring wall. Each annular flange has an inclined inner surface adapted for abutting against a corresponding one of the tire rim portions. The outer ring wall is disposed between the annular flanges, and includes a pair of connection sections, each of which is connected to a corresponding one of the annular flanges and has a retaining surface that cooperates with the inclined inner surface of the corresponding annular flange to form an included angle smaller than 90 degrees.