Equipment for a wheel of a bicycle and corresponding rim

The present invention relates to a device for a bicycle wheel comprising at least one profiled wing-shaped projection designed to be secured to the inner surface of the rim between two points W1 and Z1; the internal profile of said wing-shaped projection extending along an arc of circle ARC1 of radi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Mezadourian Gérard, Zecchetto Federico
Format:	Patent
Sprache:	eng
Schlagworte:	APPLIANCES PREVENTING OR INDICATING UNAUTHORIZED USE OR THEFTOF CYCLES AXLES FOR WHEELS OR CASTORS BLASTING CASTORS CYCLE STANDS CYCLES DEVICES FOR LEARNING TO RIDE CYCLES HEATING INCREASING WHEEL ADHESION LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS LIGHTING LOCKS INTEGRAL WITH CYCLES MACHINES OR ENGINES FOR LIQUIDS MECHANICAL ENGINEERING MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOTOTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISEPROVIDED FOR OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS POWERED PROPULSION OF SLEDGES OR PRODUCING MECHANICAL POWER RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES SPRING, WEIGHT, INERTIA OR LIKE MOTORS SUPPORTS OR HOLDERS FOR PARKING OR STORING CYCLES TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES TRANSPORTING VEHICLE WHEELS VEHICLES IN GENERAL WEAPONS WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS
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Beschreibung
Zusammenfassung:	The present invention relates to a device for a bicycle wheel comprising at least one profiled wing-shaped projection designed to be secured to the inner surface of the rim between two points W1 and Z1; the internal profile of said wing-shaped projection extending along an arc of circle ARC1 of radius R2 and centre P, the radius R2 being such that R2 = 0.6(R1) to 0.8(R1); the centre P of the arc of circle ARC1 being placed at a distance H from said centre O, such that H = 0.1(R1) to 0.2(R1); the at least one profiled wing-shaped projection further comprising a first cutout of a sector having an angle α from the point W1, and a second cutout of a sector having an angle β to be taken from the point Z1; and the angles α and β, which are equal or different, are such that α = 20 deg to 45 deg and β = 20 deg to 45 deg. The profile of the equipment improves the operation of the bicycle by improving the hold of wheel on the axis of symmetry and, consequently, the quality of performance provided by the pedal is optimal and lateral deformation is reduced.