Campagnolo S.r.l.

Compagnolo S.r.l.

Campagnolo, S.p.l.

Maurizio Passarotto

Mario Meggiolan

Davide Urbani

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.

Method for producing composite bicycle rim

A method is intended for manufacturing a bicycle spoked wheel. 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.

Bicycle spoked wheel and method for manufacturing the same

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.

Lightened rim for a bicycle wheel and method for manufacturing such a rim

A spoked bicycle wheel is presented having at least one intraspoke zone with a reduced average wall thickness to reduce or eliminate the dynamic imbalance of the wheel resulting from localized mass increases at the valve and at a possible joint.

Rim for a spoked bicycle wheel, wheel and manufacturing method

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.

Method for use in manufacturing a bicycle spoked wheel

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.

Rim and spoke connection on a spoked wheel for a bicycle

A spoke for a bicycle wheel has an elongated metallic material body that extends along a longitudinal axis X-X and has a first end portion for the attachment to a hub of a bicycle wheel, a second end portion for the attachment to a rim of a bicycle wheel and an intermediate portion having a portion which is flattened in a transversal direction Z perpendicular to the longitudinal axis X-X and extending along the longitudinal axis X-X up to the first end portion. The first end portion of the spoke is also flattened in the transversal direction Z and is gradually joined to the flattened portion of the intermediate portion along the longitudinal axis X-X.

Spoke for a bicycle wheel, bicycle wheel comprising such a spoke and method for manufacturing such a spoke

A spoked wheel for a bicycle is described, including a hub, a rim, and a plurality of spokes, which connect the hub to the rim. The spokes are arranged in groups set at an angular distance from one another. At least two spokes of each group, viewed in the direction of the axis of the wheel, cross over one another.

Bicycle wheel having spokes arranged in groups

Composite bicycle rim and method for producing it

Wheel of a bicycle

A spoked wheel for a bicycle including 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.

Rim and spoke connection for a bicycle wheel

A spoked bicycle wheel is presented where the masses of a set of spoke connections for connection of a hub and a rim as a whole are imbalanced with respect to the rotational axis. In such a way the dynamic imbalance of the wheel due to localized mass increases at the valve and at a possible joint is reduced or eliminated.

Bicycle wheel balanced by spoke connections of different mass

A spoked wheel for a bicycle is described, having a hub, a rim, and a plurality of spokes, which connect the hub to the rim. The spokes are arranged in groups set at an angular distance from one another. At least two spokes of each group (R), viewed in the direction of the axis of the wheel, cross over one another.

Spoked wheel for a bicycle

A spoked wheel for a bicycle is described herein, comprising a hub, a rim and a plurality of spokes that connect the hub to the rim. The spokes comprise a first set of spokes arranged on one side of the wheel, made up of spokes connected to a first portion of the hub, and a second set of spokes arranged on the other side of the wheel, made up of spokes connected to a second portion of the hub. The second hub portion is set at an axial distance from said first portion. The spokes of the first set are grouped together into pairs set at angular distances apart from one another with the spokes of each pair that have their outer ends set close to one another.

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Rovigo, Italy

Maurizio Passarotto