Abstract:
A bicycle brake disc hub is provided for use with tangential bicycle spokes. The bicycle hub basically has a hub axle and a hub body with a brake rotor attachment portion integral formed therewith as a one-piece, unitary member. The hub axle has a center axis extending between a first end and a second end. The hub body has an interior passageway with the hub axle being rotatably supported therein. The hub body also has a set of first spoke openings circumferentially arranged around the hub body. The brake rotor attachment portion is located at a first end section of the center tubular portion. The first spoke openings are located adjacent the brake rotor attachment portion. The first spoke openings extend through the first end section of the center tubular portion of the hub body. The brake rotor attachment portion having a plurality of through bores. The through bores receive a bolt therethrough with a nut coupled the end of the bolt
Abstract:
A rim for a spoked bicycle wheel having a tubeless tire comprises a continuous outer circumferential wall without any holes or openings, and a plurality of supports for nipples for tightening the spokes, the said supports supporting the nipples outside the section making up the rim.
Abstract:
A rim for a bicycle wheel that includes, at its periphery, an annular channel designed to receive a tire, such channel being demarcated by an upper bridge devoid of openings with the exception of the valve opening, and two lateral flanges, such flanges having hooks for gripping the tire. The upper bridge has a narrow and recessed central groove demarcated by a groove base and two lateral walls, the rim well being bordered by two shoulders that are oblique from the well towards the flanges. The invention is also related to a wheel having such a rim and a wheel equipped with a tire mounted without an air tube and having such a rim.
Abstract:
A bicycle wheel rim includes an annular rim body and a plurality of mounting members. The rim body has an axis, and includes a tire retaining portion which has annular left and right tire retaining walls that are spaced apart from each other. Each of the tire retaining walls has a radial inner edge proximate to the axis of the rim body, and a radial outer edge distal to the axis of the rim body. The rim body further includes an annular spoke mounting portion disposed radially inward of the tire retaining portion and interconnecting the radial inner edges of the tire retaining walls. The spoke mounting portion has two opposite lateral outer surfaces, and is formed with a plurality of receiving holes that extend through the lateral outer surfaces and that are distributed along the length of the rim body. The mounting members are received in the receiving holes, respectively. Each of the mounting members has two opposite mounting ends that project from the lateral outer surfaces of the spoke mounting portion. Each of the mounting ends is formed with a spoke mounting hole adapted for mounting a spoke thereon.
Abstract:
A low pressure all terrain vehicle tire 10 features a strapped bead core 20 which comprises distinct layers 30,32,34,36 of filaments 26 positioned relative to one another. The bead core 20 has a substantially square or rectangular cross-section and a radially inward substantially flat base side 44, a radially outermost side 46, an axially inward first side 48, and an axially outward second side 50. The first side 48 intersects the base side 44 at a first edge 54 and forms thereby an included angle .alpha.. The second side 50 intersects the base side 44 at a second edge 56 and forms thereby an included angle .beta.. Angle .alpha. is equal to .beta.. The bead core 20 has perimeter 42 comprising the lengths of the base 44, radially outermost 46, first 48, and second 50 sides. The perimeter 42 defines the bead core area. The width of the bead heel surface 60 is approximately equal to the distance between a hump 80 and an axially inward surface 74 of the wheel flange 76. The bead core base side 44 has a width in the range of 65% to 90% of the rim seat width W and a radially inner diameter about equal to the diameter of the rim hump 80. The bead heal surface 60 has a width in the range of 80% to 125% the rim seat width W.
Abstract:
A wheel rim, made of composite materials, for cycles and the like, is disclosed, comprising at least two adjacent box-like structures presenting a common wall and each constituted by a core of a material of cellular structure and by an envelope of rigid character, based on composite textiles of impregnated and polymerized synthetic fibers closely surrounding the core to which it is bonded, one of the box structures constituting a rim body, while the other defines an outer peripheral rim section intended to mountably recline a tire. The invention is particularly applicable to racing cycle wheels.
Abstract:
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.
Abstract:
A rim for a bicycle wheel includes a radially outer tire-engaging portion, a first sidewall, and a second sidewall spaced apart from the first sidewall. The first and second sidewalls may extend radially inward of the radially outer tire-engaging portion. The rim includes a radially inner portion having at least one asymmetric protrusion.