Abstract: A rim structure for a bicycle wheel that includes, at its periphery, an annular channel designed to receive a tire, such channel being demarcated by an upper bridge devoid of openings with the exception of the valve opening, and two lateral flanges, such flanges having end butts for gripping the tire. The upper bridge has a narrow and recessed central rim well demarcated by a base and two lateral walls, the rim well being bordered by two bead seats that are oblique from the rim well towards the flanges. The invention is also related to a wheel having such a rim and a wheel equipped with a tire mounted without an air tube and having such a rim.

Abstract: A bicycle rim including an annular shaped element whose cross-section includes a box shape demarcated by an upper bridge and a lower portion having a lower bridge and side walls, the lower bridge or the side walls having holes distributed evenly and provided for the connection of the spokes, the holes and their immediate vicinity defining boring zones. The thickness of the walls constituted by the lower bridge and the side walls has a nominal value in the boring zones and a lower value than the nominal value in the intermediate zones located between two adjacent boring zones, and the thickness of this wall varies progressively from the nominal value to the lower value to the nominal value.

Abstract: The invention relates to a rim, spokes and a complete wheel, especially a cycle wheel, including such a rim and such spokes. The rim has a plurality of through holes demarcated by a chimney obtained by backflow. A threaded insert is housed in these openings. The end of the spoke includes a joining piece affixedly connected to the end of the spoke, a tension adjusting screw mounted to rotate freely on this side of the joining piece, and extended by a coupling sleeve with a tightening tool. The joining piece is provided to slide within the insert, and the screw is tightened within the joining piece.

Abstract: A hub body including two lateral flanges having buttonhole-shaped borings provided for hooking the spokes with a large cross-section portion and a small cross-section portion. Each of the flanges includes an approximately axial barrel extended by a disk, and that the large cross-section portion is located in the area of the disk, and the small cross-section portion is located in the area of the barrel. The small cross-section portion is located at the base of the large cross-section portion, with reference to the direction in which the spoke exerts a traction on the flange when it is mounted and tensioned. The invention also relates to a hub as well as a bicycle spoke wheel.

Abstract: Spoked wheel rim having a predetermined number of borings distributed on its periphery provided to hook spokes, wherein a label is applied to a surface of the rim. The label has a tongue of a length at least equal to the distance between two successive borings on the rim. The tongue has a first marker centered on a first boring of the rim and a scale of, one of, markers or identifying indices indicating the number of borings on the rim. The scale is located near a boring adjacent to the first boring. The boring adjacent to the first boring is located opposite a marker or identifying index of the scale to indicate the number of borings on the rim.

Abstract: A rim for a bicycle wheel that includes, at its periphery, an annular channel designed to receive a tire, such channel being demarcated by an upper bridge devoid of openings with the exception of the valve opening, and two lateral flanges, such flanges having hooks for gripping the tire. The upper bridge has a narrow and recessed central groove demarcated by a groove base and two lateral walls, the rim well being bordered by two shoulders that are oblique from the well towards the flanges. The invention is also related to a wheel having such a rim and a wheel equipped with a tire mounted without an air tube and having such a rim.

Abstract: The invention relates to a rim, spokes and a complete wheel, especially a cycle wheel, including such a rim and such spokes. The rim has a plurality of through holes demarcated by a chimney obtained by backflow. A threaded insert is housed in these openings. The end of the spoke includes a joining piece affixedly connected to the end of the spoke, a tension adjusting screw mounted to rotate freely on this side of the joining piece, and extended by a coupling sleeve with a tightening tool. The joining piece is provided to slide within the insert, and the screw is tightened within the joining piece.

Abstract: A hub body including two lateral flanges having buttonhole-shaped borings provided for hooking the spokes with a large cross-section portion and a small cross-section portion. Each of the flanges includes an approximately axial barrel extended by a disk, and that the large cross-section portion is located in the area of the disk, and the small cross-section portion is located in the area of the barrel. The small cross-section portion is located at the base of the large cross-section portion, with reference to the direction in which the spoke exerts a traction on the flange when it is mounted and tensioned. The invention also relates to a hub as well as a bicycle spoke wheel.

Abstract: The invention relates to a rim, spokes and a complete wheel, especially a cycle wheel, including such a rim and such spokes. The rim has a plurality of through holes demarcated by a chimney obtained by backflow. A threaded insert is housed in these openings. The end of the spoke includes a joining piece affixedly connected to the end of the spoke, a tension adjusting screw mounted to rotate freely on this side of the joining piece, and extended by a coupling sleeve with a tightening tool. The joining piece is provided to slide within the insert, and the screw is tightened within the joining piece.

Abstract: The invention relates to the method for manufacturing a rim for a spoke wheel, especially a cycle rim. At least one bridge of the rim is bored with a plurality of through holes with a flow drilling bit operating in the direction of the other bridge, so as to create a backflow chimney at the level of each opening of the upper bridge, whose length is greater than the thickness of the bridge. The rim is equipped with inserts provided to receive the spoke nipples. The inserts are either embedded in the chimney openings, or screwed.

Abstract: A wireless control and/or measuring system for a cycle. The system includes a transmitter of control and/or interrogation signals whose transmitted carrier frequency is between 10 and 150 kHz, i.e., within a range for which the human body is substantially transparent to the waves at this frequency. This signals transmitted by the transmitter are messages that include a code specific to the system. The transmitter is installed within reach of the cyclist, near the front; it is intended to transmit toward the rear at least one control and/or interrogation signal.

Abstract: A metal spoke for a cycle wheel having a tapered body and two ends respectively for the fastening to a hub and a rim. The tapered portion of the spoke is smooth and exempt from threading over its entire length; the spoke has at each of its ends an enlarged head; and a recessed fastening screw is mounted in free rotation between the two enlarged heads. The spoke is made from a light alloy shaped in the annealed state, then heat treated by tempering. The invention also relates to a wheel having a rim, a hub and spokes.

Abstract: An inflation valve provided to inflate a cycle tire assembled without an air tube on a rim. The valve has a body crossed by a conduit, with a first part being designed to cross the casing of the rim, and a second part adapted to connect an inflating means. The valve has an injection nozzle located in the extension of the first part, a sealing joint located around the injection nozzle, and in that the first part or nozzle has an assembly device designed to cooperate with the complementary assembly device of the rim.

Abstract: A display device provided to be associated, on the one hand, with an electric gearshift, and, on the other hand, with at least one sensor of at least one performance parameter of the bicycle or the cyclist. The gearshift is provided to emit a confirmation signal that a requested displacement did occur. This signal is sent to a processing circuit which elaborates information relative to the sprocket called, then sends this information to a display manager. During a period predetermined by a time delay, the display manager blackouts one of the current displays from the display unit and sends the information relative to the sprocket called to the display.

Abstract: A quick-locking pin including a longitudinal rod, a first tightening stop at one end of the rod and a second tightening stop at the second end of the rod. The second tightening stop includes a second tightening ring, a lever mounted and journalled at the second end of the rod beyond the second tightening ring, the lever having a tightening cam off-centered with respect to its axis of rotation. The axle of the lever is borne by a cap located at the end of the rod between two arms. A transversely movable beam located between the arms of the cap is situated between the periphery of the cam and the external surface of the second tightening ring.

Abstract: A rim for cycle wheel, provided to receive a tire and having in transverse cross-section two lateral wings forming the two lateral sides of the rim. The two lateral sides are joined at their base by a lower bridge and in their median portion by an upper bridge, so as to produce towards the tip of the wings an annular groove for receiving the tire. The rim has a rectangular global shape in cross-section. The lower bridge has a thickness less than about 0.7 millimeters.

Abstract: Free wheel hub for cycles, in which the wheel hub is driven by the free wheel, by means of a unidirectional connection constituted by the cooperation of at least one movable ratchet acted upon by a spring so as to move toward an operative projecting position, in which it cooperates with teeth, this ratchet being free to pivot on a support piece fastened to the hub body, while the teeth are produced on a free wheel body. The ratchet-support piece is made of a material whose mechanical properties and/or density are similar to those of the material used to make the hub body, this ratchet being mounted so as to pivot on a gauge rod attached to the support piece, this gauge rod being made of a material whose mechanical properties and/or density are similar to those of the material used to manufacture the free wheel body.