A patient transport apparatus comprises a support structure and at least one caster assembly coupled to the structure to facilitate movement of the structure along a floor. Each caster assembly comprises a wheel, an actuator moveable between three actuator positions, a steer lock assembly moveable by the actuator between a steer and non-steer locked state, and a brake assembly movable by the actuator between a braked and unbraked state. The brake assembly includes a plunger, a retainer coupled to the plunger, a brake pad for sliding movement along the retainer, and a brake biasing element disposed between the plunger and the brake pad to urge the brake pad away from the plunger such that movement of the actuator to place the brake assembly in the braked state simultaneously brings the brake pad into engagement with the wheel and slides the brake pad along the retainer to compress the biasing element.

A motor vehicle wheel bearing assembly includes a hub configured to be supported by at least one rolling-element bearing and to provide a seat for a wheel. The hub includes a first hollow-cone-shaped element manufactured from light metal and having a first axial end section having a first diameter and a second axial end section having a second, larger, diameter and at least one bearing raceway or raceway support at the first axial end section. The hub also includes a second element extending radially from an end of the first hollow-cone-shaped element, the second element having a radially inner section and a radially outer section. The second axial end section of the first element is connected to the radial outer section of the second element, for example, at a joint.

The present invention relates to a hybrid wheel for vehicles that comprises a unitary lug structure, with a mount face and a dish section of the lug structure extending therefrom. The lug structure is usually a cast aluminum alloy. A wheel structure comprising a high strength polymer encapsulates a portion of the lug structure dish section. rim ring(s) are included in the wheel structure and are preferably made of a fiber reinforced high strength polymer.

A connection (110) between a rim portion (102) and a face portion (104) of a composite wheel (100). The rim portion (102) comprises a first set of fibers (122). The face portion (104) comprises a second set of fibers (124). The connection (110) comprises a transition zone (120) in which the first set of fibers (122) and the second set of fibers (124) are arranged in a layered structure. Each layer (125A, 125B, 125C) of the layer structure includes a first section (127) including an arrangement of the first set of fibers (122), and a first connection end (128), and a second section (129) including an arrangement of the second set of fibers (124), and a second connection end (130). The first connection end (128) is arranged adjacent to or abutting the second connection end (130) forming a layer joint (132A, 132B, 132C). The layer joint (132A, 32B, 132C) of each adjoining layer (125A, 125B, 125C) is spaced apart in a stepped configuration.

An omni-directional wheel for a pool vacuum head includes a first frame and a second substantially identical frame, each frame having a hub rotating around a common axis, lower supports extending radially from the hub, risers extending from the hub along the common axis, and upper supports individually coupled to the risers, the upper supports extending radially from the common axis. Rollers coupled to the first frame and the second frame, are radially spaced from the common axis on each frame. The rollers rotate normal to the common axis to impart omni-directional movement. When the first frame and the second frame are interlocked, the risers on the first frame engage the hub on the second frame, and the lower supports on the first frame engaging the upper supports on the second frame, maintaining the rollers in a staggered arrangement around the wheel.

A flanged wheel hub for wheel hub bearings, the wheel hub having a flange provided with a plurality of threaded through holes and, for each threaded through hole, a respective radial arm, which has a respective axial thickness (SAB) to act as a strengthening element for the flange, at least at the position of the threaded through holes, the wheel hub being produced by forging with the flange and the arms made in one piece, and also having, for each threaded through hole, an annular boss, which is also forged in one piece with the wheel hub and is arranged around, and penetrated by, the corresponding threaded through hole for the purpose of increasing the mechanical strength characteristics of the wheel hub.

The invention relates to a drive wheel for a bike, comprising a rim which is fastened to a hub by means of a plurality of spokes, wherein the spokes are made of reinforcing fibers embedded in resin, the reinforcing fibers of a spoke extending from a first fastening portion at the rim to a second fastening portion offset against the former in the circumferential direction and being guided along the outside of the hub, wherein the hub takes a shape polygonal in cross-section on the outside to which an axial side of each spoke is adjacent. The invention further relates to a bicycle comprising said drive wheel configured as a rear wheel.

A wheel disc for a disc wheel, especially for utility vehicles; with an essentially radially extending hub fitting flange and an essentially cylindrical disc edge which can be joined to a wheel rim, and with a transition region extending between the hub fitting flange and the disc edge, wherein the transition region is subdivided into at least five segments (Ai to v) passing into each other or into the hub fitting flange or the disc edge, each of which has an outer end situated closer to the hub fitting flange and an inner end situated closer to the disc edge, wherein neighbouring segments have curvatures with different directions and variable material thickness, with the ratios of the material thicknesses and the ratio of their lengths to heights are chosen as follows:

TABLE-US-00001 Material thickness of Length in axial inner end direction Material thickness of Height in radial outer end direction Segment A.sub.I 0.45-0.7  0.9-1.1 (between hub fitting flange and segment A.sub.II) Segment A.sub.II 0.7-1.0  1.6-1.9 (between A.sub.I and A.sub.III) Segment A.sub.III 0.9-1.25 2.5-2.8 (between A.sub.II and A.sub.IV) Segment A.sub.IV 0.9-1.25 2.8-3.1 (between A.sub.III and A.sub.V) Segment A.sub.V 0.7-1.15 6.0-6.8 (between A.sub.IV and disc edge)

An apparatus for transferring driving force at a wheel for a vehicle may include a housing of a constant velocity joint having a center of a first end portion formed to be penetrated and inserted into a hub bearing, and a step formed on an inner peripheral surface of a middle portion of the housing, a hub flange supporting an expansion part by the step by having one end portion coupled to a wheel side and another end portion inserted into the housing to thereby form the expansion part expanded in a radial direction, and a forming member installed in the housing to face the expansion part and having an outer peripheral surface supported by an inner peripheral surface of the housing.

A vehicle wheel having a rim, a hub, a plurality of spokes with at least one of the spokes having a first portion connected the rim and a second portion connected to the hub. The rim includes a spoke bed wall with a radially outboard surface and a spoke hole having a radially outboard entrance and perimeter edge. The spoke extends through the spoke hole and is engaged to the spoke bed wall by an overlie engagement at a bearing interface between a bearing surface of the spoke and the radially outboard surface to limit longitudinally inward displacement between the spoke and spoke bed wall. At least a portion of the bearing interface is laterally outwardly spaced from the first perimeter edge by a lateral distance of at least 0.7 millimeters.