Abstract: A cycle wheel that includes a rim and a tire, having a width S, the rim including a rotational body whose cross section includes a main portion, having a width L greater than the width S, and a peripheral portion which is radially positioned outside of the main portion and which includes an annular cavity in which the tire is partially received. The outer surface of the wheel is comprised of the portions of the tire and of the rim facing outward of the wheel. The wheel further includes an interface fitting in contact with the rim and the tire, the interface fitting being positioned in a groove, one side wall of which is a portion of the outer surface of the tire and the other side wall of which is a portion of the outer surface of the rim. The interface fitting constitutes an intermediate portion of the outer surface of the wheel, the fitting being a deformable portion distinct from the tire and the rim, and at least 40% of the volume of the interface fitting being comprised of a hollow space.

Abstract: A bicycle wheel rim having a circular base portion including a proximal surface and a distal surface, and a pair of integral sidewalls extending generally radially outward from an intersection region of the proximal surface and the distal surface. The distal surface of the rim has a central hump, a trough contiguous with the central hump extending axially outward from the hump, and a flat shelf immediately adjacent, contiguous with, and extending axially outward from the trough. Another embodiment of the invention is directed to a bicycle wheel including the embodied rim, a plurality a spokes engaged at respective ends thereof with the rim and a hub engaged with the plurality of spoke members at opposite ends thereof. Another embodiment of the invention is directed to a bicycle wheel assembly comprising the embodied wheel and a tube and/or tire mounted on the rim.

Abstract: A composite rim includes a tire-receiving ring made of metal and a spoke-connecting ring made of plastic. The tire-receiving ring includes at least one dovetail formed on the bottom thereof and two sidewalls formed thereon. The spoke-connecting ring includes two brake-contacting members located tightly outside the sidewalls of the tire-receiving ring, a cross member formed between the brake-contacting members and at least one dovetail groove defined in the cross member for receiving the dovetail.

Abstract: A spoke fastening device includes a spoke fastening hole drilled through a spoke bed of a wheel rim for receiving a head and a stem of a nipple and a collar of a ferrule, the collar includes an inner peripheral wall and an outer peripheral wall each having a lower portion for engaging into the spoke fastening hole of the spoke bed, the inner peripheral wall includes an outwardly curved rim for engaging with the spoke bed of the wheel rim, and the outer peripheral wall of the collar includes another outwardly curved rim for engaging with the curved rim of the inner peripheral wall, the head of the nipple flares and deforms the lower portions of the peripheral walls to engage with the spoke bed of the wheel rim.

Abstract: A bicycle wheel rim having a circular base portion including a proximal surface and a distal surface, and a pair of integral sidewalls extending generally radially outward from an intersection region of the proximal surface and the distal surface. The distal surface of the rim has a central hump, a trough contiguous with the central hump extending axially outward from the hump, and a flat shelf immediately adjacent, contiguous with, and extending axially outward from the trough. Another embodiment of the invention is directed to a bicycle wheel including the embodied rim, a plurality a spokes engaged at respective ends thereof with the rim and a hub engaged with the plurality of spoke members at opposite ends thereof. Another embodiment of the invention is directed to a bicycle wheel assembly comprising the embodied wheel and a tube and/or tire mounted on the rim.

Abstract: A rim for a cycle wheel that includes an annular shaped element, as well as a bicycle that includes such rim and a method of making the rim. The annular shaped element has at least one groove, with the element being encircled by at least one binding of polymerizable resin-coated fiber housed in the groove. In the manufacturing method the fiber winding is wound on the annular shaped element or the fiber winding is first made and then, second, it is placed in a recess of the rim.

Abstract: A cycle wheel that includes a rim and a tire, having a width S, the rim including a rotational body whose cross section includes a main portion, having a width L greater than the width S, and a peripheral portion which is radially positioned outside of the main portion and which includes an annular cavity in which the tire is partially received. The outer surface of the wheel is comprised of the portions of the tire and of the rim facing outward of the wheel. The wheel further includes an interface fitting in contact with the rim and the tire, the interface fitting being positioned in a groove, one side wall of which is a portion of the outer surface of the tire and the other side wall of which is a portion of the outer surface of the rim. The interface fitting constitutes an intermediate portion of the outer surface of the wheel, the fitting being a deformable portion distinct from the tire and the rim, and at least 40% of the volume of the interface fitting being comprised of a hollow space.

Abstract: A method intended for manufacturing a bicycle spoked wheel is described. By inserting the nipples or barrels for the attachment of the spokes in the spoke attachment seats from the inside of the spoke attachment chamber through a suitably sized opening, instead of from the outside, the rim of the bicycle wheel can be manufactured without additional openings, even when using conventional nipples or barrels.

Abstract: A bicycle rim includes a substantially H-shaped outer part including an annular body and two sidewalls. A tire space is defined between the annular body and the two sidewalls. A substantially U-shaped inner part is connected to the outer part. The inner part and the outer part are made by composite material. The outer part is made before the inner part which is combined with the outer part in another mold.

Abstract: A spoked wheel for a bicycle includes a rim, a hub, a plurality of spokes tensioned between the rim and the hub, each provided with a spoke attachment element for attachment to the rim, a plurality of seats, such seats being openings formed in the rim, each for housing one of said spoke attachment elements. The shape and size of the spoke attachment elements and of the seats of the rim are such that: the spoke attachment element is suitable for taking up a first configuration in which its insertion through the seat is possible; and the spoke attachment element once inserted in the seat assumes a second configuration in which it is not possible to remove the spoke attachment element through the seat.

Abstract: A bicycle rim made of composite material has structural fibers incorporated in a polymeric material. The rim has at least one circumferential reinforcement element based on unidirectional structural fibers extending at a respective intersection of walls of the rim, the direction of the structural fiber being circumferential.

Abstract: The invention concerns a rim made from composite material for a tubeless bicycle wheel comprising a radially outer portion shaped for the coupling with a tyre, said radially outer portion comprising a through hole for an inflation valve. Advantageously, at least one first impermeable-to-air layer is integrally associated with said radially outer portion, around said hole.

Abstract: A tubeless-tire spoke wheel with spokes threaded directly into integral bores of the wheel rim. The integral bores have closed ends which allow for a large degree of tubeless-tire design flexibility while also providing enhanced strength characteristics. This results in stiffer, stronger designs while providing for lighter, more energy efficient wheels.

Abstract: A rim (5) for a bicycle wheel having a body (20) with a substantially annular extension with a radially outer portion (22) shaped for coupling with a tire is disclosed. The radially outer portion (22) has a hole (39) for an inflation valve. The radially outer portion (22) also includes, at the hole (39) and/or in an area proximal to the hole (39), at least one cross section having a different shape from that at an area distal from the hole, so as to form at least one second surface discontinuity (35) along the annular extension of the radially outer portion (22). The second discontinuity (35) makes it easier to assemble to wheel and allows an optimal coupling to be made between the rim (5), inflation valve, and tire, in the case of a tubeless wheel, and between rim (5), air chamber and tire, in the case of a wheel with an air chamber.

Abstract: A rim (1) for a bicycle wheel, having a body (5) with a substantially annular extension and a radially outer portion (6a) shaped for coupling with a tire is disclosed. The radially outer portion (6a) includes an annular bottom wall (12) provided with a hole for an inflation valve, and the annular bottom wall (12) defines a central annular recess (20) and two side annular portions (24) arranged on axially opposite sides with respect to the central annular recess (20). The recess (20) includes, on at least one side, and in at least one circumferentially distal area from the hole with reference to a cross section of the rim (1), a radially inner surface (26) and a radially outer surface (28). The radially outer surface (28) has a different bending radius than that of the radially inner surface (26).

Abstract: A bicycle wheel includes a wheel rim, a lining strap, and a tire. Thus, each of the edges of the lining strap is clamped in the clamping space of the respective clamping hook of the wheel rim and closely retained by the respective clamping hook of the wheel rim and the respective sidewall of the opening, and the protruding lips of the tire are movable freely on the smooth face of the lining strap, so that when the tire is subjected to an external force, the lining strap will not driven by the tire to prevent a gap from forming between the lining strap and the tire and to prevent the air contained in the tire from leaking from the mounting holes of the wheel rim.

Abstract: A bicycle wheel rim includes an annular rim body having a rim axis and including left and right annular side walls, two annular first oblique walls, two annular second oblique walls, an annular base wall that interconnects the second oblique walls, and left and right annular connecting walls. Each first oblique wall extends from a respective side wall and has an edge opposite to the respective side wall. The edges of the first oblique walls are disposed on an imaginary cylindrical plane. Each second oblique wall extends from a respective first oblique wall. Each connecting wall extends from the base wall to a respective side wall. Each first oblique wall has a radial inner side forming an angle with the imaginary cylindrical plane that ranges from 15 to 65 degrees.

Abstract: A wheel rim includes an annular rim body having a horizontally disposed rim axis and an imaginary central plane that is perpendicular to the rim axis. The rim body includes a pair of annular side walls, an annular base wall, a pair of annular strengthening walls, and an annular reinforcing wall. The annular side walls are disposed respectively on opposite sides of the imaginary central plane. The annular base wall interconnects the annular side walls. Each of the annular strengthening walls extends from a respective one of the annular side walls toward the imaginary central plane and is disposed radially outward relative to the annular base wall. The reinforcing wall includes a pair of connecting segments, each of which interconnects the annular base wall and a respective one of the annular strengthening walls, and a reinforcing protruding segment that protrudes radially and outwardly relative to the rim axis.

Abstract: A wheel rim includes an annular rim body having a horizontally disposed rim axis and an imaginary central plane that is perpendicular to the rim axis. The rim body includes a pair of annular side walls, an annular base wall, a pair of annular strengthening walls, and an annular reinforcing wall. The annular side walls are disposed respectively on opposite sides of the imaginary central plane. The annular base wall interconnects the annular side walls. Each of the annular strengthening walls extends from a respective one of the annular side walls toward the imaginary central plane and is disposed radially outward relative to the annular base wall. The reinforcing wall includes a pair of connecting segments, each of which interconnects the annular base wall and a respective one of the annular strengthening walls, and a reinforcing protruding segment that protrudes radially and outwardly relative to the rim axis.

Abstract: A bicycle rim includes first and second annular side portions, an annular bridge portion and an annular seal member. The bridge portion extends between the first and second side portions. The bridge portion includes first and second annular tire support surfaces and a recessed center surface. The recessed center surface is arranged between the first and second tire support surfaces to form an annular recess. The recessed center surface has a plurality of circumferentially arranged openings formed therein. The annular seal member is arranged in the annular recess to seal the openings.

Abstract: A bicycle wheel rim includes an annular rim body having a rim axis, and including left and right annular side walls, a pair of annular oblique walls, an annular base wall, left and right annular connecting walls, and a pair of annular tire-retaining ribs. Each of the left and right annular side walls has a radial outer edge. Each of the oblique walls extends obliquely from a respective one of the side walls toward the other one of the side walls. The base wall interconnects the oblique walls and has a radial outer side. Each of the left and right annular connecting walls extends from the base wall to connect to a respective one of the side walls. A radial distance between the radial outer side of the base wall and the radial outer edges,of the side walls ranges from 8.5 millimeters to 12.5 millimeters.

Abstract: A composite rim includes a tire-receiving ring made of metal and a spoke-connecting ring made of plastic. The tire-receiving ring includes at least one dovetail formed on the bottom thereof and two sidewalls formed thereon. The spoke-connecting ring includes two brake-contacting members located tightly outside the sidewalls of the tire-receiving ring, a cross member formed between the brake-contacting members and at least one dovetail groove defined in the cross member for receiving the dovetail.

Abstract: A bicycle wheel rim having a circular base portion including a proximal surface and a distal surface, and a pair of integral sidewalls extending generally radially outward from an intersection region of the proximal surface and the distal surface. The distal surface of the rim has a central hump, a trough contiguous with the central hump extending axially outward from the hump, and a flat shelf immediately adjacent, contiguous with, and extending axially outward from the trough. Another embodiment of the invention is directed to a bicycle wheel including the embodied rim, a plurality of spokes engaged at respective ends thereof with the rim and a hub engaged with the plurality of spoke members at opposite ends thereof. Another embodiment of the invention is directed to a bicycle wheel assembly comprising the embodied wheel and a tube and/or tire mounted on the rim.

Abstract: In a wheel rim including fiber reinforced composite material and preferably having lateral rim sidewalls that may include rings.

Abstract: A structure for a bicycle wheel includes at least two tubes for improving the stiffness, strength, aerodynamics and aesthetics of the wheel. The wheel may be designed as a rim type with traditional spokes, or as one piece wheel with attached spoke legs. Preferably, the tubes are separated at various locations to form apertures.

Abstract: The invention relates to improvements in or relating to wheelchair wheels. More particularly, the invention relates to a more ergonomically designed wheelchair wheel, and also relates to a method of manufacturing such a wheelchair wheel.

Abstract: An element for the attachment of a spoke in a bicycle wheel at a seat hole has a body, an axial hole, and can engage a tool. The body is of greater transverse size than a seat hole, and abuts the seat hole at a first end of the body. The axial hole extends from the first end in the body and engages a spoke. The element engages a tool at a second end of the body opposite the first end. Finally, the maximum transverse size of said body is defined by side surface portions of said body other than the area of the second end that engages the tool.

Abstract: A rim for a bicycle has a lower bridge with infra-spoke zones of lower thickness than the thickness of the spoke attachment zones. The increase in thickness from the infra-spoke zones to the spoke attachment zones and the reduction in thickness between the spoke attachment zones and the infra-spoke zones have a sharp corner.

Abstract: A method intended for manufacturing a bicycle spoked wheel is described. By inserting the nipples or barrels for the attachment of the spokes in the spoke attachment seats from the inside of the spoke attachment chamber instead of from the outside, after having inserted them in the chamber from a suitably sized opening, the rim of the bicycle wheel can be manufactured even without additional openings, still using conventional nipples or barrels.

Abstract: An internal spoke nipple for a bicycle rim that is positioned internal to the rim and can be pivoted for alignment with various spoke angles. The internal spoke nipple is adapted to be positioned within an aero or deep V-shaped rim. The spoke nipple includes a cupped shaped base portion and a stem portion. The cupped base portion allows the internal spoke nipple to automatically align with the angle of the attached spoke, eliminating undesirable lateral forces on the spoke. The internal spoke nipple further comprises a fully threaded central bore that is adapted to engage and retain the spoke. The stem portion includes a plurality flat side walls that are adapted to accept a spoke wrench, to allow for adjustment of spoke tension.

Abstract: A fiber resin plastic (FRP) based bicycle rim includes an FRP body and a metal tire receiving ring. The FRP body has first and second side surfaces, an annular outer edge surface, and an annular inner edge surface. The annular inner edge surface includes at least two spoke receiving ports for receiving and supportively coupling at least two spokes to the FRP body. The metal tire receiving ring is coupled to the FRP body and is disposed radially outwardly of the FRP body. The tire receiving ring includes first and second, generally parallel continuous braking surfaces.

Abstract: A vehicle wheel spoke termination assembly includes an outer rim with means for holding a tire, a central hub assembly and a plurality of spoke portions. The central hub assembly includes an axle assembly and a hub shell that is rotatable about the axle. The spokes are connected at their outer ends to the outer rim hoop and at their inner ends to the hub flange. A connecting element is blindly attached to at least one of the outer rim and the hub flange for a firm connection between the connecting element and the spoke.

Abstract: A bicycle rim made of composite material has structural fibers incorporated in a polymeric material. The rim has at least one circumferential reinforcement element based on unidirectional structural fibers extending at a respective intersection of walls of the rim, the direction of the structural fiber being circumferential.

Abstract: A rim for a bicycle wheel with tubeless tire comprises a radially inner peripheral wall, a radially outer peripheral wall, two circumferential side walls which connect the inner and outer peripheral walls and form two ribs which extend beyond the outer peripheral wall, for anchorage of a tubeless tire. The inner and outer peripheral walls have two holes facing one another, within which an intermediate tubular element is mounted, connected to which is a valve body of a standard type normally used for bicycle wheels provided with inner tubes.

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 bicycle wheel rim includes an annular rim body having left and right annular tire retaining walls with inner edges connected to left and right edges of an annular spoke mounting wall. Each of a pair of annular corner reinforcing members is formed integrally with the rim body at a junction of a corresponding one of the left and right edges of the spoke mounting wall with the inner edge of a respective one of the tire retaining walls. Each of the corner reinforcing members extends laterally outward relative to the respective one of the tire retaining walls, and further extends radially inward relative to the spoke mounting wall.

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: A rim for a bicycle wheel with tubeless tire comprises a radially inner peripheral wall, a radially outer peripheral wall, two circumferential side walls which connect the inner and outer peripheral walls and form two ribs which extend beyond the outer peripheral wall, for anchorage of a tubeless tire. The inner and outer peripheral walls have two holes facing one another, within which an intermediate tubular element is mounted, connected to which is a valve body of a standard type normally used for bicycle wheels provided with inner tubes.

Abstract: A bicycle wheel rim includes a rim body with annular left and right tire retaining walls, an annular spoke mounting wall, and a tire retaining cavity. The tire retaining walls are spaced apart from each other. Each of the tire retaining walls has a radial inner edge proximate to a central axis of the rim body, and a radial out edge distal to the central axis. The spoke mounting wall interconnects the radial inner edges of the tire retaining walls, and is formed with a set of spoke mounting holes. The tire retaining cavity is formed between the tire retaining walls, and is configured to have two opposite lateral cavity parts and an intermediate cavity part between the lateral cavity parts. The lateral cavity parts are deeper than the intermediate cavity part with respect to the radial out edges of the tire retaining walls.

Abstract: The invention relates to a rim, spokes and a complete wheel, especially a cycle wheel, including such a rim and such spokes. The rim has a plurality of through holes demarcated by a chimney obtained by backflow. A threaded insert is housed in these openings. The end of the spoke includes a joining piece affixedly connected to the end of the spoke, a tension adjusting screw mounted to rotate freely on this side of the joining piece, and extended by a coupling sleeve with a tightening tool. The joining piece is provided to slide within the insert, and the screw is tightened within the joining piece.