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.

A low-speed vehicle wheel assembly includes a rim, at least three spokes, connectors, a central bearing seat, and bearings. Outer ends of the spokes are fixedly connected to an inner side wall of the rim through the connectors, respectively. Inner ends of the spokes are fixedly connected to an outer wall of the central bearing seat. The bearings are fitted in bearing holes of the central bearing seat, respectively. Because the rim and the central bearing seat are independent components, each component can be made with an independent mold and assembled according to the diameter of the wheel. The cost of the mold is lower, and the components are more versatile.

A nipple for spokes of spoked wheels includes a rod with an axial development, a threaded hole which is formed axially in the rod, the thread of the hole defining a root diameter and a crest diameter, a head which is widened with respect to the rod and a deformable insert which is inserted in a seat which is axially aligned with the hole and which is constructed in an axially intermediate position thereof. The insert, at least when it is inserted in the seat, has a passage for a threaded spoke end, the internal diameter of which is less than the root diameter of the thread of the hole so as to interfere with the thread of the spoke when it is screwed into the threaded hole.

A low-speed vehicle wheel assembly includes a rim, at least three spokes, connectors, a central bearing seat, and bearings. Outer ends of the spokes are fixedly connected to an inner side wall of the rim through the connectors, respectively. Inner ends of the spokes are fixedly connected to an outer wall of the central bearing seat. The bearings are fitted in bearing holes of the central bearing seat, respectively. Because the rim and the central bearing seat are independent components, each component can be made with an independent mold and assembled according to the diameter of the wheel. The cost of the mold is lower, and the components are more versatile.

A nipple for spoked wheels of the tubeless type comprises a first and a second shoulder which are formed on a rod with a blind axial hole which is internally threaded at an end of the rod which is distal from the opening of the axial hole and in a zone of the rod which is proximal with respect to the opening, respectively. A first recess for a sealing ring is formed on the rod behind the first shoulder and at least a second recess for a second sealing ring is formed on the rod between the first recess and the second shoulder.

A nipple assembly for a spoke wheel according to the present disclosure is coupled to at least one end of a spoke provided on a spoke wheel and includes a main body including a nipple head, and a column portion having a smaller diameter than the nipple head and elongated from the nipple head toward one side, a nipple base having a first through-hole and fitted with the column portion through the first through-hole, and a vibration attenuation member having a second through-hole and positioned between the nipple head and the nipple base by being fitted with the column portion through the second through-hole.

A tubeless spoked wheel including a rim and a hub connected with wire spokes includes a rim that has no through-hole and is narrow in the vehicle width direction. A plurality of internal threads are aligned circumferentially in an annular raised portion arranged along the centerline of a rim. A connecting member that is hollow and has an external thread on its outer periphery is screwed into each internal thread. Each connecting member is pre-engaged with a distal end of a spoke in a rotatable manner. Each spoke bends at a position outward from the connecting member, tilts toward a hub, and has its basal end connected to a right or left flange of the hub with a nipple. The spokes are connected to the annular raised portion to narrow the rim in the vehicle width direction. The spokes are rotatably supported on the connecting members.

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.

A bicycle wheel assembly structure includes an annular rim, a hub, nipples, and spokes. The annular rim includes rim penetration sections, each of which includes a rim-side limiting part. The hub is arranged at a center of the annular rim and includes hub penetration sections. The nipples each include a thread-connecting section and a nipple limiting part. The nipples are arranged on the rim penetration sections, and the nipple limiting parts are mounted to the rim-side limiting parts. The spokes include an intermediate section, a head section, and a thread section. The head sections are mounted to the hub penetration sections. The thread sections are connected to the thread-connecting sections of the nipples. The spokes, when set between the annular rim and the hub, induce tensions that cooperate with static frictional forces at the rim-side limiting parts and the nipple limiting parts resist sliding and prevent loosening of the spokes.

Self-locking nipple for attaching wheel spoke to wheel part. The self-locking function of the nipple is created by deforming the nipple body in a rotationally symmetrical way and over a predetermined axial distance, such that such a narrowed part is created in the internal screw-thread of the nipple which is rotationally symmetric with respect to the longitudinal axis of the nipple and extends over only one to two windings of the internal screw-thread.