Abstract: A rim for a bicycle wheel includes a radially inner portion disposed along an inner circumference of the rim, a first sidewall, and a second sidewall spaced apart form the first sidewall. The first sidewall and the second sidewall extend radially outward from the radially inner portion. The radially inner portion includes a stack of strips of material. The stack of strips includes a plurality of strips and a hole through the plurality of strips. The plurality of strips are nonparallel to each other. The plurality of strips are positioned about the hole through the plurality of strips.

Abstract: 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.

Abstract: A spoked bicycle wheel having a rim at least partially comprised of a composite material. The rim has at least one spoke attachment chamber with a plurality of spoke attachment holes. The wheel has a plurality of spokes coupled with the rim and a spoke attachment element partially inserted in a respective spoke attachment hole. The wheel includes a holding element that prevents the movement of said spoke attachment element along a radially outer direction. The spoke attachment element has a holding surface configured for abutment against the holding element.

Abstract: A vehicle wheel includes: a rim including a well portion and a guide member; and a sub-air chamber member serving as a Helmholtz resonator. The well portion has an outer circumferential surface extending in a wheel circumferential direction of the vehicle wheel. The guide member engages with the sub-air chamber member to guide the sub-air chamber member on the outer circumferential surface in the wheel circumferential direction, thereby to attach the sub-air chamber member to the rim.

Abstract: Disclosed herein are systems and techniques for producing complex components using a reinforced thermoplastic material. The complex components can include contoured or curved outer surfaces, and in some cases define a cavity. In certain examples, one or more thermoplastic materials are arranged to form a wheel component, such as that adapted to define a rim of the bicycle. Thermal bonding can be used to join multiple reinforced thermoplastic materials to one another in order to form a cavity of the wheel component or other complex shape. In certain examples, a portion of a tooling assembly can be pressurized to maintain a shape of the cavity during thermal bonding and cooling. This can remove the need for a sacrificial bladder or other structure that would maintain the shape of the cavity, allowing for a seamless final component, optionally absent indicia of bladder exit or other seams.

Abstract: The invention relates to a vehicle wheel comprising a wheel rim, a wheel disc and at least one connecting element that connects the wheel disc and the wheel rim, wherein the connecting element is guided through a through-hole of the wheel rim and is joined in a joining channel of the wheel disc. According to the invention, an elongated sleeve (4, 4.1, 4.2, 4.3) is provided that surrounds the connecting element (3, 3.1, 3.2) coaxially, which sleeve is designed and arranged in such a way that at least part of said sleeve interlockingly extends into a corresponding recess (7) of the wheel rim (1.1, 1.2) and into a corresponding recess (8) of the wheel disc (2.1).

Abstract: A plurality of continuous fiber reinforced plastics is placed substantially in parallel on the outer circumferential surface of a mold for rim formation so as to be aligned with the direction of an axis of the mold to cover the surface. In addition, the continuous fiber reinforced plastics is applied and laminated on a continuous fiber reinforced plastic layer including the continuous fiber reinforced plastics placed on the outer circumferential surface of the mold, the continuous fiber reinforced plastics being substantially in parallel and aligned with the direction of the axis of the mold. Furthermore, a restraint material is wound around the continuous fiber reinforced plastic layer disposed at level difference portions of the mold using the axis as a winding center.

Abstract: A hybrid solar cells integrated glassblock structure, includes, at least one glass shell (0) having at least a light transparent surface (2, 9, 13) intended to be exposed to solar radiations, a Dye-Sensitized Solar Cell (DSC) device (3, 8) associated to the surface (2, 9, 13) so as to receive solar radiations passing through the surface, the device having electric contacts, at least one hole (7, 11, 15, 17) allowing passage to an external area of the glassblock of electrical connections leading to the device contacts; and a prestressed and dry assembled glassblock panel for the construction of translucent building envelope even in high-rise buildings, which may also provide high performance related to energy production and saving.

Abstract: A wheel includes a multi-layered rim, a sealing tape and a pressure-resistant tape. The multi-layered rim includes two layers. The first layer includes apertures for nipples. The second layer includes apertures corresponding to the apertures of the first layer. The sealing tape is used to wrap the second layer to seal the apertures of the second layer. The pressure-resistant tape is used to cover and support the sealing tape against high pressure.

Abstract: A bicycle rim is provided with a pair of circumferential side walls and an outer bridge connecting radial outer ends between the first and second circumferential side walls. At least one of the first and second circumferential side walls includes a first portion of a non-resin material with a first thermal conductivity and a second portion of a non-resin material with a second thermal conductivity. The second portion extends more than half in a circumferential direction along the at least one of the first and second circumferential side walls. The second thermal conductivity of the second portion is higher than the first thermal conductivity of the first portion. The first and second portions at least partially overlaps in a thickness direction of the at least one of the first and second circumferential side walls.

Abstract: A bicycle rim includes a radially outer peripheral part, a radially inner peripheral part, at least one first slanting member, and at least one intermediate member. The at least one first slanting member radially extends between the radially outer peripheral part and the radially inner peripheral part in a first direction slanted with respect to a radial direction of the bicycle rim as viewed in an axial direction of the bicycle rim. The at least one intermediate member is disposed between the radially outer peripheral part and the radially inner peripheral part.

Abstract: A rim well with integrated flange made of fiber composite as well as to a method for manufacturing same. The flange is formed by inwardly directed protuberances of fiber layers of the rim well, wherein the fiber layers transition to the flange from the rim well without interruption of the fibers. The manufacture is carried out by depositing fiber material on a mold, which corresponds to the contour of the rim well and has a radially circumferential or segmented groove. The fibers are deposited such that the fibers of at least one fiber layer have protuberances directed into the groove. A multipart mold, which makes it possible to reduce the width of the groove and thus a deformation of the protuberances, is preferably used.

Abstract: A bicycle rim is basically provided with an outer rim portion and an inner rim portion. The outer rim portion has a ring shape of a first material. The inner rim portion is joined to the outer rim portion. The inner rim portion has a ring shape of a second material with an internal residual stress distribution resulting from the ring shape being formed by spinning of the second material.

Abstract: Embodiments described herein improve airflow around the bicycle wheels by providing for one or more of: (1) a optimum leading edge width of a rim for preventing early stall in cross winds, while still allowing for sufficient stability without undue drag, while not unnecessarily increasing the rotating wheel and drag on the frame; (2) a sidewall shape with a subtle camber angle at the leading, which defines a rate of radius change at the max width of the rim—which further defines the max width and placement along the chord length for optimizing the aerodynamic properties of the rim; (3) a continuous rate of change of curvature at a spoke face, which fundamentally improves the performance and stability by generating a side force at higher yaw angles; and (4) wheel sets with a wider front rim relative to a narrower rear wheel to assist in flow attachment in high crosswind areas.

Abstract: A bicycle rim includes an outer rim made by aluminum and initially formed as an elongate member which has two connection ends which are connected to each other to form a ring-shaped rim. The outer rim has two sidewalls and a tire groove is defined between the two sidewalls. The outer rim has at least one rib located in opposite to the tire groove and the at least one rib has a hook-shaped flange. An inner rim made by carbon fibers and is connected to the inner periphery of the outer rim. The inner rim encloses the at least one rib.

Abstract: A connectible wheel rim structure for a bicycle includes a wheel rim body and a plurality of metal connectors. The wheel rim body has a plurality of sub wheel rims. Each sub wheel rim has an assembling groove defined thereon to assemble with a bicycle tire. Each sub wheel rim has an annular portion and a channel defined thereon. Two ends of each metal connector are respectively inserted into the channel of each corresponding sub wheel rim and the channel of adjacent sub wheel rim, so that the sub wheel rims are closely assembled with each other via the metal connectors. Under this arrangement, the structural strength of the wheel rim body is enhanced; hence, the wheel rim body does not detach easily because of the metal connectors, so that a user rides the bicycle stably and safely.

Abstract: A wheel frame of the fiber composite material includes multiple arched frame bars each including a foam body made out of a foam material and a fiber composite cover layer made out of a fiber composite material and wrapped about the foam body, the arched frame bars being joined together by means of connection surface portions of the fiber composite cover layers thereof to form a circular wheel frame, the connection surface portions of each two adjacent arched frame bars forming a support face to work as a support rib supporting the wheel frame. Thus, the fiber composite wheel frame has the characteristic of lightweight and will not easily break.

Abstract: A bicycle rim includes a body having an axis defining a center thereof. The body includes an outer periphery and an inner periphery. The outer periphery and the axis have an outer radius therebetween, and the outer radius is constant. The inner periphery includes a first portion having a non-constant diameter.

Abstract: There is provided a vehicle wheel which can reduce a rolling resistance by rising a tire temperature with a simple structure. A heat-insulation rubber is pasted on all circumference surface of a portion of an outer circumference surface of a rim other than a bead seating portion where a bead portion of a tire closely contacts and a rim flange portion. The heat-insulation rubber suppresses any heat transfer from air in a tire air chamber and from the internal surface of the tire to the rim at the outer circumference surface of the rim which contacts the air in the tire air chamber.

Abstract: A method for manufacturing a bicycle wheel rim includes: (a) providing a first mold assembly which includes an inner mold and an outer mold, the outer mold having an annular first forming face to surround an annular second forming face of the inner mold; (b) disposing annularly a first prepreg preform that overlie annularly and respectively the annular first and second forming faces; (c) causing the first and second forming faces to press the concaved faces and thermoforming the first prepreg preform to obtain an annular outer rim part; (d) forming a second prepreg preform into an annular inner rim part; and (e) combining the annular outer rim part with the annular inner rim part to form a wheel rim.

Abstract: A composite bicycle rim includes a first annular side wall, a second annular side wall and an annular bridge. The first annular side wall has a first braking contact portion. The second annular side wall has a second braking contact portion. The annular bridge extends between the first and second annular side walls. At least one of the first and second braking contact portions has a plurality of exposed hard particles partially embedded in a non-metallic layer. The exposed hard particles are partially exposed on an outermost surface of the at least one of the first and second braking contact portions.

Abstract: A rim assembly for receiving a tire includes a rim having an outer ring-shaped member defining an outer surface, and a rim liner having a ring-shaped body formed to generally match the contours of the outer surface of the rim. The rim liner is positioned within a recess formed in at least a portion of the outer surface of the rim so as to maintain an intended industry standard sizing for rims and tires.

Abstract: A bicycle includes a notch centrally defined therein and two support portions respectively formed on two opposite edges of the notch, wherein each support portion complementally corresponds to lateral nipples. The bottom of the notch is divided into a first inclined face and a second inclined face. Each inclined face has a series of first through holes equally and vertically defined therein such that each first through hole has an axis forming an angle with a corresponding one of the diameters of the bicycle rim, wherein the first through holes in the first inclined face are interlaced to that in the second inclined face.

Abstract: A rim assembly for receiving a tire includes a rim having an outer ring-shaped member defining an outer surface, and a rim liner having a ring-shaped body formed to generally match the contours of the outer surface of the rim. The rim liner is positioned within a recess formed in at least a portion of the outer surface of the rim so as to maintain an intended industry standard sizing for rims and tires.

Abstract: A composite bicycle wheel is provided with a first circumferential side wall, a second circumferential side wall and an outer bridge. The first circumferential side wall has a radial inner end and a radial outer end. The second circumferential side wall has a radial inner end and a radial outer end. The outer bridge connects the radial outer ends of the first and second circumferential side walls. At least one of the outer bridge and the first and second circumferential side walls includes a vibration suppression layer.

Abstract: A FRP rim for a bicycle, including a radially outer tire-engaging portion and a radially inner spoke-engaging portion. A first sidewall is in a spaced configuration with a second sidewall. The first and second sidewalls extend between the radially outer tire-engaging portion and the radially inner spoke-engaging portion and one or more integral bumper is located on an outermost radial extent or peak portion of the radially outer tire-engaging portion.

Abstract: A composite rim including a reinforcing assembly is provided. The composite rim includes a first sidewall portion, a second sidewall portion, a radially outer portion and a reinforcing assembly. The radially outer portion includes a radially outwardly-facing tire-engaging surface. The reinforcing assembly is disposed proximate the tire-engaging surface and includes a reinforcer and a containment member for containing the reinforcer. The reinforcer has an axis extending circumferentially about the composite rim and is configured to reinforce the composite rim in a direction generally perpendicular to the axis of the reinforcer.

Abstract: Application of carbon fiber reinforced polymer structures to metal vehicle wheels is effective in reducing the mass of the wheel while retaining suitable stiffness in the wheel structure. For maximum effect the reinforced polymer structure and the metal wheel must operate cooperatively. Because of the wide range of operating temperatures experienced by wheels and the large difference in coefficient of thermal expansion between metals and carbon fiber reinforced composites attachment of the polymer structure to the wheel by adhesive alone is problematical. However a wheel with an effective and durable reinforcement may be fabricated by confining, through mechanical interference, the reinforced polymer in a cavity in or on the spoke and by preheating the wheel before curing the polymer.

Abstract: A composite rim for a bicycle wheel generally includes a radially outer tire-engaging portion, a radially inner spoke-engaging portion and first and second sidewalls. The second sidewall is spaced apart from the first sidewall. The first and second sidewalls extend between the tire engaging and spoke-engaging portions. The rim includes at least one through-hole and a pattern of through-thickness stitching reinforcement at the through-hole. The tire-engaging and spoke-engaging portions and first and second sidewalls form a toroid.

Abstract: A wheel rim for bicycle of the present invention includes a carbon fiber main body and two strengthen layers. The strengthen layers are made of metal and are attached to two side surfaces of the main body by electroplating. As such, brake pads can rub against the wheel rim on the strengthen layers. Heat dissipation efficiency is enhanced so as to keep the wheel rim away from deformation, and the wheel rim is reinforced as well. Therefore, the wheel rim is made durable.

Abstract: Embodiments of the present invention comprise a composite rim used in spoked wheels, such as bicycle wheels, having molded-in spoke holes along with a method of fabricating the composite rim. Advantageously, the present invention dramatically improves the bearing and loading strength of prior art composite rims, which drill the spoke holes therein after fabrication of the rim hoop.

Abstract: According to the present invention, a bicycle rim comprises a body having an axis defining a center thereof. The body includes an outer periphery and an inner periphery. The outer periphery and the axis have an outer radius therebetween, and the outer radius is constant. The inner periphery includes a first portion having non constant diameter.

Abstract: A bicycle rim is basically provided with an outer rim portion and an inner rim portion. The outer rim portion has a ring shape of a first material. The inner rim portion is joined to the outer rim portion. The inner rim portion has a ring shape of a second material with an internal residual stress distribution resulting from the ring shape being formed by spinning of the second material.

Abstract: A rim for a bicycle having a rim body including a rim well and a rim base and rim flanks connecting the rim base and the rim well wherein the rim flanks and the rim base consist of a fibrous composite material. A minimum wall thickness of the rim flanks is thinner in one radial region than in another radial region. The rim body is bulbous in cross-section. A maximum height from the rim base to the rim well is less than 1.5 times and in particular less than 1.2 times the maximum width.

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 wheel rim configured to enhance the durability of the tire by reducing the temperature of the tire during running. A wheel rim 1 consisting of a metallic material and adapted so that a pneumatic tire 2 is mounted thereon, wherein a coating 5 having high heat emissivity is formed on at least a part of the surface of the wheel rim 1.

Abstract: A bicycle rim is provided with a pair of circumferential side walls and an outer bridge connecting radial outer ends between the first and second circumferential side walls. At least one of the first and second circumferential side walls includes a first portion of a non-resin material with a first thermal conductivity and a second portion of a non-resin material with a second thermal conductivity. The second portion extends more than half in a circumferential direction along the at least one of the first and second circumferential side walls. The second thermal conductivity of the second portion is higher than the first thermal conductivity of the first portion. The first and second portions at least partially overlaps in a thickness direction of the at least one of the first and second circumferential side walls.

Abstract: A wheel rim having an axis of rotation, the rim including a first element in the form of a section of a solid of revolution about the axis, made in a single unitary piece from composite material and including a first end and a second end distinct from one another. The first element is made by pultrusion and constitutes, between the first end and the second end, a section of a solid of revolution having an angular arc greater than 350°, the composite material of the first element includes fibers embedded in a thermosetting matrix, the fibers constituting at least 50% of the weight of the first element.

Abstract: A composite rim for a bicycle wheel generally includes a radially outer tire-engaging portion, a radially inner spoke-engaging portion and first and second sidewalls. The second sidewall is spaced apart from the first sidewall. The first and second sidewalls extend between the tire engaging and spoke-engaging portions. The rim includes at least one through-hole and a pattern of through-thickness stitching reinforcement at the through-hole. The tire-engaging and spoke-engaging portions and first and second sidewalls form a toroid.

Abstract: An aircraft wheel (14) comprises a metal support structure (30) having a first annular ring (31) and a second annular ring (32) connected via at least one connecting element (37); and a fiber-enforced, molded-composite body. The metal support structure (30) is at least partially embedded in the composite body to form a first aircraft wheel section (20, 22) having a rim flange (16a, 16b) for forming a seal with a tire.

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: The present invention relates to a spoked wheel rim for a wheeled vehicle, a mounted assembly incorporating this rim for such a vehicle and a method for assembling this mounted assembly. The invention applies in particular to the mounted assemblies for bicycles. This rim (1) has two rim edges (5 and 6) and a rim bottom (2) covered by an annular ribbon (10) that is flexible and sealed against the inflation gas that is intended to receive a tire and that is fitted with an inflation valve for inflating this tire, this ribbon having a central portion (12) conforming to the shape of this rim bottom and two lateral portions (15 and 16) protruding axially from these rim edges. According to the invention, these lateral portions are capable of having a portion of their axial width cut off by the detachment of two respective peripheral sections (15a and 16a) of these lateral portions, so that this ribbon extends from one of the said edges to the other following this detachment.

Abstract: A fiber reinforced plastic bicycle wheel rim is formed of six segments per side and formed in a section having precisely formed, machinable brake surfaces and preferably combining inner high modulus fiber reinforced plastic lamination as a main structural body and an outer lamination of improved frictional coefficient materials at the braking surfaces. The main structural body with overlapped individual sheets of unidirectional fiber reinforced plastic, having crossing fibers, in segments, and continuous unidirectional fiber bundles in areas of concentrated load, enables strong, light wheels for sew up or clincher tires to be formed. Because of the unique thermodynamic properties of a clincher bicycle wheel rim, an all-composite rim formed with an epoxy matrix with a Tg of 350 or greater is advantageous.

Abstract: A bead seat clincher bicycle rim includes a tire supporting surface bounded by a first straight sidewall and a second straight sidewall wherein said bicycle rim does not comprise bead hooks. A method for forming a bead seat clincher rim includes forming composite plies in a bottom portion of a mold and placing a single piece upper portion over the bottom portion. A bladder is inflated in the center of the mold to form a closed cavity within the rim. The rim is cured and the bladder is deflated. The single piece upper portion and bottom portion of the mold are removed.

Abstract: The invention concerns a vehicle wheel, in particular for passenger vehicles and motorcycles, comprising a rim for receiving a tire and a spoke unit or a wheel disc connecting the rim to the hub. The rim is made of plastic material and the spoke unit or the wheel disc of metal. The rim is connected to the spoke unit or wheel disc by form-closure and/or by force-closure of the material. The invention aims at enabling the wheel disc to be accurately positioned relative to the rim base and at providing a wheel with an attractive design. Therefore, the spoke unit, or the wheel disc are connected via at least one connecting element guided through the rim base and the connecting element is housed in the spoke unit or the wheel disc so as to be completely covered by a tire or by the spoke unit or the wheel disc.

Abstract: A composite rim (1) for a bicycle wheel (60). The rim has at least one braking surface (20) and a wear indicator (40) that indicates when a predetermined level of wear has been reached at the braking surface (20). The wear indicator (40) is arranged in the rim (1) so that its does not affect the outer surface of the rim (1) or weaken its mechanical strength.

Abstract: There is provided a vehicle wheel that can suppress any detachment of a sub air chamber from a well portion when a fixing member between the sub air chamber and the well portion becomes defective by any possibility. A vehicle wheel comprises a sub-air-chamber member which reduces any air column resonance of a tire and which is disposed on an outer circumference surface of a well portion of a rim. The sub-air-chamber member is fixed on the well-portion outer circumference surface, the sub-air-chamber member is covered by a cover made of a rubber from an external side, and the cover is fixed on an outer circumference surface of the rim at both sides of the sub-air-chamber member in a rim width direction.

Abstract: There is provided a vehicle wheel which can reduce a rolling resistance by rising a tire temperature with a simple structure. A heat-insulation rubber is pasted on all circumference surface of a portion of an outer circumference surface of a rim other than a bead seating portion where a bead portion of a tire closely contacts and a rim flange portion. The heat-insulation rubber suppresses any heat transfer from air in a tire air chamber and from the internal surface of the tire to the rim at the outer circumference surface of the rim which contacts the air in the tire air chamber.

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: Embodiments of the present invention comprise a composite rim for used in spoked wheels, such as bicycle wheels, having molded-in spoke holes along with a method of fabricating the composite rim. Advantageously, the bearing and loading strength of the rim is improved over prior art composite rims wherein the spoke holes are drilled therein after fabrication of the rim hoop.