A multilayer structure (1) includes a metallic material (2), a thermoplastic first resin material (3) bonded to the metallic material (2), and a thermoplastic second resin material (4) that is bonded to the first resin material (3) and contains carbon, the metallic material (2), the thermoplastic first resin material (3), and the thermoplastic second resin material (4) being stacked on one another.

The invention relates to a stable one piece wheel, which is particularly suitable for cycles having an increased system weight such as electrically powered bicycles or cargo bikes, and a method producing said vehicle wheel. Said vehicle wheel comprises an annular portion (110), a plurality of spokes (120) and a hub portion (130) integrally formed by mould injection of fibre reinforced or carbo nano tubes containing thermoplastic, wherein each of the plurality of spokes (120) comprise a substantially Z-shaped cross section with a middle leg (122) and a pair of outer legs (121, 123), wherein the angle (γ) enclosed by each of the pair of outer legs and the middle leg is greater than a right angle and wherein the length of the middle leg (122) increases from the annular portion (110) toward the hub portion (130).

The invention relates to a stable one piece wheel, which is particularly suitable for cycles having an increased system weight such as electrically powered bicycles or cargo bikes, and a method producing said vehicle wheel. Said vehicle wheel comprises an annular portion (110), a plurality of spokes (120) and a hub portion (130) integrally formed by mould injection of fibre reinforced or carbo nano tubes containing thermoplastic, wherein each of the plurality of spokes (120) comprise a substantially Z-shaped cross section with a middle leg (122) and a pair of outer legs (121, 123), wherein the angle (γ) enclosed by each of the pair of outer legs and the middle leg is greater than a right angle and wherein the length of the middle leg (122) increases from the annular portion (110) toward the hub portion (130).

A wheel includes a spoke having a mounting hole that extends in a radial direction, and a first through hole that extends in an axial direction and that is in spatial communication with the mounting hole. The wheel includes a rim having a second through hole that is aligned with the mounting hole. The wheel further includes a connecting unit connecting the spoke with the rim. The connecting unit includes a rod extending through the second through hole into the mounting hole and having an engaging hole that is aligned with the first through hole. The connecting unit further includes a fastener extending through the first through hole into the engaging hole and engaging with the engaging hole.

A composite wheel assembly and method of construction thereof is provided. The composite wheel assembly includes a lightweight annular fiber-reinforced barrel having an inner surface and an outer surface configured to support a tire thereon. A lightweight metal central hub assembly is fixed to the barrel. The metal central hub assembly includes a central hub portion and plurality of support spokes extending outwardly from the metal central hub portion. A wheel cladding contrasting in at least one of material type, color, texture and surface finish to an outwardly facing surface of the central hub assembly is fixed to the outwardly facing surface of the central hub assembly.

A composite wheel assembly and method of construction thereof is provided. The composite wheel assembly includes a lightweight annular fiber-reinforced barrel having an inner surface and an outer surface configured to support a tire thereon. A lightweight metal central hub assembly is fixed to the barrel. The metal central hub assembly includes a central hub portion and plurality of support spokes extending outwardly from the metal central hub portion. A wheel cladding contrasting in at least one of material type, color, texture and surface finish to an outwardly facing surface of the central hub assembly is fixed to the outwardly facing surface of the central hub assembly.

A rim portion of a composite wheel comprises a shaped annulus formed about a central axis of rotation of the composite wheel and having a circumferential axis extending circumferentially about the central axis and around the rim portion, said rim portion having a fibre layup comprising a stacked laminate formed from alternating layers of: a hoop tow layer comprising elongate fibre tow in which the fibres are substantially aligned with the circumferential axis of the rim portion, the hoop tow layer being formed from at least one annularly wound elongate fibre tow; and a bias ply layer comprising at least one fibre ply in which the fibres are substantially orientated at an angle of +Θ or −Θ to the circumferential axis of the rim portion, wherein Θ is from 26° to 40°.

A rim portion of a composite wheel comprises a shaped annulus formed about a central axis of rotation of the composite wheel and having a circumferential axis extending circumferentially about the central axis and around the rim portion, said rim portion having a fibre layup comprising a stacked laminate formed from alternating layers of: a hoop tow layer comprising elongate fibre tow in which the fibres are substantially aligned with the circumferential axis of the rim portion, the hoop tow layer being formed from at least one annularly wound elongate fibre tow; and a bias ply layer comprising at least one fibre ply in which the fibres are substantially orientated at an angle of +Θ or −Θ to the circumferential axis of the rim portion, wherein Θ is from 26° to 40°.

A wheel and hub assembly. Such a wheel includes split adapters, split hubs and split wheels. The assembly is attached to any beach chair or other article of manufacture which has a rod or pipe in its structure. Also, the wheel can be adapted on variously sized pipes and enable a user to easily pull/roll a beach chair or other articles of manufacture on various surfaces including a sandy beach or lawn.

A wheel and hub assembly. Such a wheel includes split adapters, split hubs and split wheels. The assembly is attached to any beach chair or other article of manufacture which has a rod or pipe in its structure. Also, the wheel can be adapted on variously sized pipes and enable a user to easily pull/roll a beach chair or other articles of manufacture on various surfaces including a sandy beach or lawn.