Campagnolo S.r.l.

Compagnolo S.r.l.

Campagnolo, S.p.l.

Mario Meggiolan

Maurizio Passarotto

Filippo Bove

Davide Zenere

Paolo Saccardo

Maurizio Valle

Paolo Pasqua

Mauri Feltrin

Leonardo Antonio Demelio

Jürgen Beier

Stefano Rubini

A diagnostic method for a bicycle hydraulic disc braking system, having a master cylinder assembly with a cylinder inside which a piston reciprocates against the action of a return spring. The master cylinder has a hydraulic tank with a bottom, a ceiling, and a membrane that divides the hydraulic tank into two chambers. The hydraulic tank is connected to the cylinder through the bottom. A metering device measures the distance between the membrane and the ceiling of the tank. The output signal of the metering device is evaluated to determine that operation is correct when the membrane temporarily approaches the ceiling by a predetermined extent range, or incorrect otherwise. A positive evaluation reflects the correct operating condition, and a negative evaluation reflects an incorrect operating condition.

Bicycle hydraulic disc braking system and a method and system for diagnosing the braking system

A spoke attachment assembly configured to couple a rim to the spokes of a spoked bicycle wheel. The spoke attachment assembly comprises a nipple having an enlarged head and a stem provided with a coupling portion for coupling with a spoke, at least one shaped washer associated with the nipple and configured to abut on one side with the enlarged head of the nipple and, on the opposite side, with the rim and holding means configured to hold said at least one shaped washer associated with the nipple. The invention also relates to a spoked bicycle wheel and to a process for manufacturing such a wheel.

Spoke attachment assembly for a spoked bicycle wheel, related wheel and process for manufacturing such a wheel

A process for manufacturing a spoked bicycle wheel, comprising the steps of providing a rim element having a spoke attachment chamber; providing a spoke attachment assembly for coupling to a respective spoke, inserting the spoke attachment assembly through an opening of the spoke attachment chamber along an insertion direction that is inclined with respect to the rim element and moving the spoke attachment assembly along the insertion direction until a stem of the spoke attachment assembly is at the surface of the spoke attachment chamber; moving the spoke attachment assembly along the surface of the spoke attachment chamber towards a spoke attachment seats; inserting the stem in the spoke attachment seat; and, constraining the spoke attachment assembly in the spoke attachment seat. The steps are repeated to couple a respective spoke attachment assembly to each of the plurality of spoke attachment seats. The invention also relates to a spoked bicycle wheel produced by the above process.

Process for manufacturing a spoked bicycle wheel and related wheel

An abutment interface located between a spoke attachment nipple and a bridge of a rim to properly align the tensioned spoke with the rim. The abutment interface includes a first washer with a radially inner face that abuts the bridge and a radially outer face that abuts with a radially inner face of a second washer that has a radially outer face that abuts an enlarged head on the nipple. The faces of two washers are complimentarily shaped and adjust with respect to each other and the nipple head. An initial adjustment takes place when the fixing the spoke to the rim and the washers prevent any further adjustment when fixing the spoke to the rim.

Abutment interface between the head of a nipple and the bridge of a wheel rim and spoked bicycle wheel

A bicycle rim is made with a plurality of layered, each of which is formed of structural fibres incorporated in a polymeric material. The rim has a radially outer peripheral channel with an upper bridge extending between the wings for holding a tyre. The peripheral channel comprises an inner layered structure, extending between wings and at least one wrapping layered structure, wound on the inner layered structure at least at the end of the wings, the inner layered structure and the wrapping layered structure being included in the plurality of layered structures.

Bicycle rim made of composite material with wings having reinforced structure

The present invention relates to a motorized hub assembly for a bicycle wheel. The assembly has a hub shaft extending along a longitudinal axis with a cavity to receive a quick release axle. A bearing having a radially inner ring is arranged radially outside the hub shaft. A hub body is rotatably mounted on the hub shaft about the longitudinal axis and an electric motor is arranged inside the hub body. A routing opening for passage of electrical conductors for the electric motor pass through a routing opening arranged radially between the inner ring of the bearing and the hub shaft.

Motorized hub assembly for a bicycle wheel

A hydraulic tank for a bicycle that has a compensation chamber within the tank. The tank also has a ventilation hole and a ventilation channel, which is in fluid communication with the ventilation hole, and has an inlet opening arranged on a side wall of the tank.

Hydraulic tank for a bicycle

A hydraulic tank has an elastically deformable membrane defining a variable compensation chamber within the tank. The membrane has a fixed perimeter portion and a thrusting portion. A perimeter inlet portion is arranged between the perimeter fixing portion and the thrusting portion. In the condition of minimum expansion of the compensation chamber, the thrusting portion is completely arranged between the perimeter inlet portion of the membrane and a wall of the tank.

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.

Spoked bicycle wheel and spoke attachment element for such a wheel

An insert for the rim of a spoked bicycle wheel that has a spoke hole. The insert has a portion configured to abut against a spoke attachment element with an enlarged head and a holding element that prevents movement of the spoke attachment along said longitudinal axis of the spoke hole.

Insert for a rim of a spoked wheel for bicycle and respective spoked wheel for bicycle

The invention relates to a pad for a bicycle disc brake. The pad comprises a support frame made of a first material having a first coefficient of thermal conductivity and a first coefficient of thermal expansion, an element made of friction-wearing material associated with a first portion of said support frame and a heat-dissipating element associated with a second portion of said support frame which is distinct from said first portion. The heat-dissipating element is made of a second material different from said first material and having a second coefficient of thermal conductivity greater than said first coefficient of thermal conductivity and a second coefficient of thermal expansion greater than said first coefficient of thermal expansion.

Pad and brake caliper for a bicycle disc brake

A hydraulic sealing body including a radially inner surface defining a through-cavity and an annular element projecting in a radially inner direction from said radially inner surface is disclosed herein. The annular element includes a first annular abutment surface configured to receive in contact relationship a head portion of a coupling terminal, and a second annular abutment surface, axially opposite to the first, configured to receive in contact relationship an axial end of a hydraulic hose.

Hydraulic sealing body for bicycle braking systems and hydraulic hose assembly for bicycle braking systems

A bicycle wheel hub for mounting a brake disc in relation to a spoke-holding flange. The hub has a connection portion with a first annular sector that is axially external with respect to the spoke-holding flange and a second annular sector that is axially external with respect to the first annular sector. A circumferential groove axially arranged between the first and the second annular sectors.

Bicycle wheel hub and related hub assembly

A bicycle free wheel has a first annular body, at least partially ferromagnetic, configured to be rotatable with sprockets of a bicycle and comprising a first crown gear. A second annular body configured to be rotatable with a rear wheel of a bicycle has a second crown gear matching with and facing towards the first crown gear. The first annular body is axially mobile with respect to the second annular body between an engagement condition in which the first crown gear is coupled with the second crown gear and a disengagement condition where they are decoupled. At least one magnetic body is arranged radially externally with respect to the first annular body, so that the first annular body in the disengagement condition is at least partially contained in the axial space occupied by the magnetic body.

Bicycle free wheel and wheel hub comprising such a free wheel

The bicycle handlebar assembly comprises a handlebar rod and at least one oleo-hydraulic group for controlling on-board bicycle equipment; the oleo-hydraulic group is housed inside the handlebar rod. The internal housing in the handlebar rod overcomes any problems of bulk of the oleo-hydraulic group. Moreover, thanks to the relatively large size of the handlebar rod, the dimensional constraints imposed on the designer are much less stringent with respect to controls associated directly to the brake lever; it is thus relatively easy to make controls capable of exerting very large forces.

Growing community of inventors

Creazzo, Italy

Mario Meggiolan