An axle assembly including: an axle sleeve having first and second end faces, an axially extending through opening, and a radially extending first engagement surface; and a control shaft extending within the opening and having a radially extending second engagement surface. The control shaft is axially displaceable relative to the axle sleeve and is axially retained to the axle sleeve by means of an overlie engagement between the first and second engagement surfaces. At least one of the first and second engagement surfaces is radially displaceable between an engaged orientation corresponding to the overlie engagement and a released orientation corresponding to a release of the overlie engagement. The overlie engagement serves to axially retain the control shaft to the axle sleeve and the released orientation serves to remove the overlie engagement and permit the control shaft to be axially withdrawn and separated from the axle sleeve in the retracting direction.

A levitating bicycle hub coupling structure using a magnet in the internal contact structure is provided. The levitating bicycle hub coupling structure in which a non-contact type structure in a levitated form is provided to reduce friction enables the position of a hub inner shaft member for transmitting the load of a user to an inner bearing part to be changed to an upper or lower preset position, and fixes the shaft member at a changed position so as to offset the load applied to the shaft member by the repulsive force of the magnets, such that the load is not applied to the bearing parts positioned at both sides of the shaft member or is significantly reduced so as to improve rolling performance, and thus riding of the bicycle becomes smoother and easier.

The invention relates to a hub, in particular for bicycles, comprising an axle on which a hub member and a free-wheel member are rotatably arranged, wherein the hub member and the free-wheel member are coupled to each other by a free-wheel mechanism which is based on a pairing of saw-tooth tooth arrangements, which are engaged with each other, of axially adjacent toothed discs and which thereby forms a rotationally secure connection for one rotation direction between the free-wheel member and the hub member, wherein at least two pairings of cooperating saw-tooth tooth arrangements are provided.

The present invention provides a wheel hub for a vehicle, including: a) a wheel axle defining an axis of rotation for the wheel; b) a hub body rotatably coupled to the axle for rotation about the axis of rotation, the hub body defining an internal cavity; and, c) a braking assembly, including: i) at least one first annular plate disposed within the internal cavity about the axle, the at least one first annular plate rotatably fixed with respect to the hub body so as to rotate therewith about the axis of rotation; ii) at least one second annular plate disposed within the internal cavity about the axle and adjacent to the at least one first annular plate, the at least one second annular plate rotatably fixed with respect to the axle, and at least one of the first and second annular plates being slidably movable within at least part of the internal cavity; and, iii) an actuator disposed within the internal cavity and configured in use, to cause an axial load to be applied to the slidably movable plate to thereby cause the at least one first and second annular plates to frictionally engage thereby applying a braking load between the hub body and wheel axle so as to brake the wheel of the vehicle.

A bicycle hub includes an axle, a main body, a freehub body, and a clutch, which are engaged with the axle, wherein the clutch includes a first ratchet and a second ratchet. The first ratchet and the second ratchet are respectively engaged with the main body and the freehub body. The first ratchet has a first engaging surface, and the second ratchet has a second engaging surface facing the first engaging surface. The bicycle hub is characterized in that a minimum of number of first ratchet teeth on the first engaging surface is seventy-two, and a number of the second ratchet teeth on the second engaging surface is lesser than the number of first ratchet teeth. With such design, when the first ratchet is meshed with the second ratchet, the freehub body could stably drive the main body, and a total weight of the bicycle hub could be decreased.

A hub for partially muscle-powered vehicles, including a hollow hub axle with a cylindrical inner through hole for the passage of a clamping axle, a hub shell rotatably supported relative to the hub axle by two hub bearings, a rotor rotatably supported relative to the hub axle, and a freewheel device with a hub-side freewheel component and a rotor-side freewheel component, each having axial engagement components for engagement with one another. The hub shell is rotatably supported relative to the hub axle in a rotor-side end region by a rotor-side hub bearing, and in an opposite end region of the hub shell by another hub bearing. The hub-side freewheel component is non-rotatably connected with the hub shell. The rotor-side freewheel component is non-rotatably connected with the rotor and is movable in the axial direction relative to the rotor and the hub shell between a freewheel position and an engagement position.

Brake mounts for bicycles are described herein. The brake mounts are for coupling a brake caliper to a bicycle. An example brake mount includes a bracket having a first side and a second side opposite the first side. The bracket has bores to receive fasteners to couple the brake caliper to the bracket. The brake mount includes a sleeve extending from the first side of the bracket. An opening extends through the sleeve and the bracket. The opening is to receive an axle of a hub assembly of the bicycle. The sleeve is to extend into an axle opening in a frame of the bicycle. A distal end of the sleeve is threaded. The brake mount also includes a nut to be threadably coupled to the distal end of the sleeve when the sleeve is inserted into the axle opening in the frame e.

A multi sprocket arrangement is configured for mounting on a driver of a bicycle wheel. The multi sprocket arrangement includes a plurality of adjacent sprockets each of the plurality of sprockets having a different number of teeth. The plurality of adjacent sprockets include a first sprocket having a first inner diameter which is larger than an outer diameter of a profile base of a carrier profile of the driver, and a second sprocket having a second inner diameter which is smaller than the outer diameter of the profile base of the carrier profile of the driver. The first sprocket and the second sprocket are connected together by welding.

A human power conversion system incorporates two or more electric machines to aid in the powering of a vehicle through energy conversion. A first electric machine is coupled with the human powered input and acts as a generator when a human power input is not sufficient to produce electrical power that is provided to a second electric machine that propels the vehicle. The vehicle may be a bicycle and the first electric machine may be coupled to the crank. A bi-coupled electric machine including the first and second electric machines with a common rotor or stator may be employed and coupled to the crank and/or the driven wheel. Power produced by the first electric machine may be provided directly to the second machine or may be stored in a battery and used to propel the vehicle or power other electronic components.

An interchangeable hub system for a bicycle having an internal component holding a wheel cassette and a hub shell having wheel (spokes, tires) built thereon. The hub system allows for the internal component with the cassette to be interchanged between hub shells allowing for cassettes to be interchanged between wheels sets without a number of specialized tools.