A wheel width direction (Y) cross-section of a well portion (11A) includes a hump portion (H1) and a hump portion (H2) that protrude to the outside (Z1) in a wheel radial direction (Z), and a curved surface (11s) that connects hump portion (H1) and hump portion (H2) and is sunken to the inside (Z2) in the wheel radial direction (Z). The curved surface (11s) is formed as a series of circular arcs (11e, 11f, 11g) that have centers of curvature (O1, O2, O3) that are further to the outside (Z1) in the wheel radial direction (Z) than the curved surface (11s).

A system for locking a rotatable shaft may include a base member couplable to the rotatable shaft and rotatable about a rotation axis of the rotatable shaft through a plurality of angular positions, the base member comprises two or more curved slots; two or more pins positioned with respect to the base member such that at least one of the two or more pins is aligned with at least one of the two or more curved slots of the base member for any angular position of the base member; and an actuator to displace at least one of the two or more pins to removably insert at least one of the two or more pins into at least one of the two or more curved slots.

A turf wheel having a wheel rim having an inner and outer surface, and an annular tread portion; a plurality of projections extending radially outward from the outer surface of the wheel rim, wherein each projection provides a stem, a ground contacting pad, and a ground engaging lug; and a hub. A wheel cleaning system having a frame provided by a wheeled apparatus; at least one turf wheel mounted to the frame; a turf wheel scraper assembly, the turf wheel scraper assembly providing a turf wheel scraper and an attachment mechanism, where the attachment mechanism is adapted to be mounted to the frame, and couples the turf wheel scraper to the frame.

A method for manufacturing a vehicle wheel includes: a casting process of manufacturing the wheel in a one-piece body having a forming end and a temporary flange protruding at inner and outer sides of the wheel, respectively, wherein the one-piece body further includes a resonance chamber forming groove; a primary shape machining process of forming a stepped part at an outer circumferential side of the resonance chamber forming groove; a flow forming process of bending the forming end to be seated on the stepped part; a friction stir welding process of integrally bonding a portion where the forming end and the stepped part are in close contact with each other; a fine machining process of removing the temporary flange; and a sound-absorbing hole machining process of forming a sound-absorbing hole for communicating between the resonance chamber and an interior space of a tire in the forming end.

A vehicle wheel spoke connection, including: a rim; a hub; a plurality of spokes extending between the rim and hub with a first portion connected to the rim, a second portion opposed to said first portion and connected to the hub, a span portion between the rim and the hub, and an applied tensile load along the span portion; a bracing element including the rim and/or hub. The spoke has a longitudinal axis and is composed of reinforcement fibers in a matrix. The external surface of the spoke includes a pre-formed configured surface comprising a multiplicity of laterally outwardly projecting engagement surfaces that are longitudinally spaced. The spoke is connected to the bracing element by a longitudinal engagement comprising a multiplicity of longitudinally spaced overlie engagements associated with the spoke engagement surfaces. The longitudinal engagement supports the tensile load.

A reinforced prepreg which is applied to a wear-resistant layer structure of a braking track is provided. The reinforced prepreg includes a fiber fabric and a mixture mixed with the fiber fabric. The mixture includes a resin and a plurality of needle-shaped crystals having microscale or nanoscale sizes mixed with the resin.

A wheel loosening sensor configured to detect loosening of a wheel of a vehicle, the wheel loosening sensor including: a water tight housing that is permanently sealed, wherein at least two electrical terminals are exposed at an exterior of the water tight housing. Within the water tight housing, there is a transmitter and a battery, the transmitter being configured to receive electrical power from the battery and to transmit a signal when the at least two electrical terminals are disconnected. The water tight housing including an electrically conductive element biased away from the at least two electrical terminals and configured to electrically connect the two electrical terminals when the bias is overcome.

A multiple directional wheel including a wheel frame comprising identical component parts. Each of the wheel frame components comprise: a hub having a main axis about which the multiple directional wheel is adapted to rotate; a hub rim radially surrounding the hub; a first plurality of peripheral roller supporting arms (first arms) radially extending from the hub rim and aligned in a first plane; and a second plurality of peripheral roller supporting arms, each member arm of the second plurality of peripheral roller supporting arms having a radially inner base and being circumferentially offset with respect to diagonally adjacent members of the first plurality of peripheral roller supporting arms. Each of the wheel frame components further comprise a plurality of beams corresponding to the number of member arms of the second plurality of peripheral roller supporting arms, each respective beam extending from the hub rim to a corresponding inner base of a member arm of the second plurality of peripheral roller supporting arms, and a plurality of spigots extending from each corresponding one of the plurality of beams or the inner bases. The second plurality of peripheral roller supporting arms lie in a second plane normal to the main axis, spaced from, and parallel to, the first plane; and each of the spigots from one of the wheel frame components is received in a recess formed in a facing surface of a complementary one of the wheel frame components to join the wheel frame components to form the wheel frame.

A vehicle wheel is provided which includes a sub air chamber member capable of suppressing a surface deformation amount in case of an action of an internal pressure of the sub air chamber member. A sub air chamber member of a vehicle wheel includes an upper surface member, a lower surface member, and bridge sections causing the upper surface member and the lower surface member to strike on each other. An end-to-end distance of an opening part of a bridge section opening on an upper surface of the upper surface member is set longer than a distance to an end portion of an opening part of another bridge section adjacent thereto. Moreover, the area of the opening parts of the bridge sections opening on the upper surface of the upper surface member is larger than the area of other general parts.

A constant velocity joint assembly integrated with a wheel hub device may include an internal race coupled to an end portion of a driveshaft, a plurality of joint balls held in the internal race, and a hub housing accommodating and coupling the internal race holding the joint balls therein, with a bearing coupled to an external circumferential surface thereof, the hub housing provided as an external race of a constant velocity joint and the wheel hub device.