A wheel rim including a flange profile on a tire side of an open end flange of the wheel rim, the flange profile defined by the equation: $y_1=(a\mathrm{Theta}1+\frac{1}{{\left(1+\mathrm{Exp}\left(a\mathrm{Theta}3+a\mathrm{Theta}4.Math.X_1\right)\right)}^{\mathrm{aTheta}5}}$

A vehicle wheel rim having at least an inboard tire bead seat retaining flange, an inboard tire bead seat, a well and an outboard tire bead seat. A reinforcing tape applied to at least a portion of one of an inner surface and/or an outer surface of the inboard tire bead seat retaining flange, the inboard tire bead seat, the well and the outboard tire bead seat.

A wheel rim including a flange profile on a tire side of an open end flange of the wheel rim, the flange profile defined by the equation:

[00001]$y_1=\left(\mathrm{aTheta}.Math..Math.1+\frac{1}{{\left(1+\mathrm{Exp}\left(\mathrm{aTheta}.Math..Math.3+\mathrm{aTheta}.Math..Math.4.Math.X_1\right)\right)}^{\mathrm{aTheta}.Math..Math.5}}\right).Math.\mathrm{aTheta}.Math..Math.2$

wherein, for 0X.sub.11, aTheta1 is between 1.004 to 0.974, aTheta2 is between1.049 to 1.0182, aTheta3 is between 3.601 to 2.760, aTheta4 is between 18.791 to 25.965, and aTheta5 is between 0.185 to 0.277.

A pulley assembly having a body, a shaft mount and a plurality of bolts is disclosed. The body is aligned to the shaft mount by providing a tight tolerance between a shoulder portion of the bolt and a neck portion of a counter sunk hole formed in the body. Additionally, an outer surface of the body may have a pattern of friction lines or patches formed by fusing particulate matter to the outer surface with heat generated by a laser beam.

The vehicle wheel (1) of the present invention is characterized by including: a main body (13) which forms a sub air chamber (SC) in a space surrounded by a top plate (25a), a bottom plate (25b) and a pair of side plates (25c, 25d); and edge portions (14a, 14b) which extend from the main body (13), and are respectively fitted into a pair of grooves (17a, 17b) formed in a well portion (11c) so as to attach the main body (13) to the well portion (11c). The edge portions (14a, 14b) respectively extend from the joints (25e, 25f) between the top plate (25a) and the side plates (25c, 25d).

A thermoplastic wheel hub (10) includes a center hub (26) for attachment to a wheel bearing (20) of a vehicle. The center hub (26) has a central shaft aperture (28) extending axially therethough and a plurality of lug apertures (30) spaced radially from and circumferentially about the central shaft aperture (28). The thermoplastic wheel hub (10) also includes a plurality of ribs (40) extending radially outwardly from the center hub (26). The thermoplastic wheel hub (10) further includes a cylindrical tire mount (46) connected to the ribs and extending axially in substantially a plane for mounting a non-pneumatic tire (12) thereon.

A vehicle wheel rim having at least an inboard tire bead seat retaining flange, an inboard tire bead seat, a well and an outboard tire bead seat. A reinforcing tape applied to at least a portion of one of an inner surface and/or an outer surface of the inboard tire bead seat retaining flange, the inboard tire bead seat, the well and the outboard tire bead seat.

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.

A vehicle wheel (1) allows a communication hole (18a) for a first Helmholtz resonator (auxiliary air chamber members (10a, 10d)) having a lower resonance frequency than that of an air column resonance sound of a tire and a communication hole (18a) for a second Helmholtz resonator (auxiliary air chamber members (10b, 10c)) having a higher resonance frequency than that of the air column resonance sound of the tire to be disposed at positions facing each other across a wheel rotation center (Ax).

A method for making a carbon fiber wheel rim includes: preparing an outer supporting piece; winding a carbon-fiber yarn around the outer supporting piece to form carbon fiber layers and to constitute an engaging seat preform; connecting an inner supporting piece to the engaging seat preform; connecting a reinforcement piece to the inner supporting piece; winding a carbon-fiber yarn around an assembly of the engaging seat preform, the inner supporting piece and the reinforcement piece to form carbon fiber layers; fixing the assembly with the carbon fiber layers to form an outer frame preform; and cutting the outer frame preform and the engaging seat preform to form a trench and removing the outer supporting piece therefrom.