Abstract:
An improved bicycle wheel is disclosed in which spokes (22) and spoke bores (18) are paired at the flanges of the hub (12) and the circumferential distance between adjacent pairs is grater than the distance between the spokes and the bores in a given pair, providing improved torque transmission and reduced spoke stresses at spoke crossover points. Such a wheel may be constructed to have reduced dish by comparison with a conventionally laced wheel. In this case, the wheel is one which, when laced conventionally, would be dished such as a rear wheel with at least one sprocket or a front wheel with a brake disk. In a rear wheel embodiment, the spokes extend from inside to outside, through a proximate hub flange and along the outside to inside through the opposed hub flange. In a front wheel embodiment, the spokes extend from inside to outside through the proximate hub flange along an inside or disk surface thereof. The spokes in a given flange of a hub according to the present invention are all secured to the hub flange at substantially the same axial location relative to the axis of rotation of the hub or have spoke elbows which are all at substantially the same axial location relative to the axis of rotation of the hub. As a consequence of the reduced dish there is a reduction in the tension differential between the proximate spokes and the opposed spokes.
Abstract:
A spoke fastener includes a shank extending along a shank axis and having an anchoring portion and an operating portion. The anchoring portion is formed with resilient arm segments that are angularly spaced apart from each other relative to the shank axis. Each of the resilient arm segments has a distal end formed with a radial outward anchor projection to form the anchoring portion with an initial cross-section. The anchor projections are forcible radially and inwardly toward the shank axis to form the anchoring portion with a restricted cross-section, there by permitting extension of the anchoring portion through a spoke fastening hole in a wheel rim and retention of the anchoring portion on the wheel rim. A through hole extends through the operating and anchoring portions, permits extension of a spoke into the shank, and has a threaded segment for threaded engagement with the spoke.
Abstract:
A hollow bicycle rim a plurality of tubular reinforcement members coupled to the inner and outer openings. Each of the reinforcement members has an internal abutment surface within an internal passageway designed to engage an enlarged head of a spoke to couple spokes to the rim. The inner and outer ends of the reinforcement members are secured to the inner and outer openings to prevent inner and outward movement of the reinforcement members, respectively. Each reinforcement member preferably has a pre-formed retaining surface and one or more deformed retaining surface to prevent inner and outer movement. Optionally, each reinforcement member can include a threaded connection instead of one or more the deformed retaining surfaces. Seal members are optionally mounted in the reinforcement members so that a tubeless tire can be used.
Abstract:
In the wheel structure according to the invention, at least one and preferably several profile elements (2.1) are used for the transmission of forces between hub (1) and rim (3). The parts (1.2, 1.3) are combined or combinable into an intrinsically stiff structure. The structure is particularly suitable for car wheels.
Abstract:
A bicycle rim includes a plurality of elongate slots each of which is composed of a first diameter portion and a second diameter portion which is smaller than the first diameter portion. A tube having threaded outer periphery is inserted in each elongate slot and a core piece is inserted through a passage in the tube. The tube has a flange engaged with an inside of the rim and a cover member covering each elongate slot has a threaded hole for being threadedly connected to the threaded outer periphery of the tube. A protrusion extends from a side of the cover member so as to be engaged with the first diameter portion while the tube is shifted to the second diameter portion. A spoke is inserted in the core piece and threadedly connected to a threaded inner periphery of the core piece.
Abstract:
Described is a bicycle wheel (10) wherein the metal rim (12) is formed by a hollow-chambered rim (22) with an external flange (28) and an internal flange (26), by which a peripherally extending hollow rim chamber (35) is defined. The external flange (28) is provided with holes (34). The distal ends (38) of the spokes are integrally connected through the holes (34) in the external flange (28) to a spoke anchoring body (45) which extends peripherally in the hollow rim chamber (35) and which comprises the injection molding material of the spoke body (16).
Abstract:
Nipples, for example, useful in joining a spoke to the rim of a bicycle wheel, are provided. Such nipples include an enlarged head, and an elongated shank joined to and extending from the enlarged head and having an outer peripheral surface; and a passageway including an inlet defined by the elongated shank. The passageway is at least partially defined by an interior surface of the elongated shank and by a threaded surface. The outer peripheral surface of the elongated shank includes at least one spline, preferably a plurality of splines, each of which extends generally longitudinally. The inclusion of such spline or splines has been found to allow the nipple to be turned so as to effectively tighten the spoke to the rim with a reduced risk of damaging the nipple. Apparatus useful for turning such nipples and spoked wheels including such nipples are also within the scope of the present invention.
Abstract:
A bicycle wheel rim includes a unitary integrally formed rim body which has annular left and right tire retaining walls that are spaced apart from each other, and an annular bridging portion. Each of the tire retaining walls has a radial inner section proximate to a central point of the wheel rim, a radial outer section distal to the central point of the wheel rim, and an intermediate section between the radial inner and radial outer sections. The radial outer sections of the tire retaining walls are adapted for retaining a bicycle tire therebetween. The bridging portion interconnects the intermediate sections of the tire retaining walls, and cooperates with the tire retaining walls to provide the rim body with a generally H-shaped cross-section.