A hub assembly is provided for a human-powered vehicle. The hub assembly includes a hub axle, a hub body, a cable and a cable protector. The hub axle has a first axial end and a second axial end. The hub body is rotatably mounted on the hub axle to rotate around a rotational center axis of the hub assembly. The cable has a first portion disposed inside of the hub assembly and a second portion disposed outside of the hub assembly. The cable protector is movably arranged between a first position and a second position. The second portion of the cable extends along the rotational center axis where the cable protector is in the first position. The second portion of the cable being at least partly restrained in an angled position with respect to the rotational center axis where the cable protector is in the second position.

The present invention relates to an energy transfer system, in particular in the form of an energy efficient wheel for use with a vehicle such as a bicycle, which energy transfer system is operable to convert potential energy in the form of the load applied by the weight of the person on the vehicle into kinetic energy in the form of driving torque applied to the wheel, the system including an inner hub and an outer hub eccentrically coupled to the inner hub, in addition to a rim connected to the outer hub via an array of spokes, wherein an actuator comprising a pair of flanges extends radially outwardly from the inner hub and an array of lever arms are hingedly mounted to the outer hub and engaged by the actuator such as to be hingedly displaceable by the actuator in response to relative movement between the inner and outer hubs, and a spring captured between each lever arm and one of the spokes.

A hub for a bicycle includes a hub shell and an axle device. The hub shell is supported rotatably relative to the axle device by way of bearing devices. A bearing device is configured as a roller bearing, and includes two bearing rings with rolling members disposed between, and is sealed axially outwardly. Between the bearing rings, the roller bearing includes a modular unit, at which a sealing unit is configured for laterally sealing the roller bearing, and including guide units protruding laterally inwardly from the modular unit for guiding the rolling members.

A hub for bicycles comprising a hub axle, a hub shell, a rotor, and a toothed disk freewheel including a pair of interacting freewheel components namely, a hub-side freewheel component and a rotor-side freewheel component. The freewheel components each comprise axial engagement components biased in the engagement position through a biasing device. The hub-side freewheel component is axially displaceably received in a threaded ring and non-rotatably coupled with the hub shell in the driving direction. The rotor-side freewheel component is non-rotatably provided at the rotor for transmitting rotational movement from the rotor to the hub shell in the engagement position of the two freewheel components. The threaded ring comprises a thread with a thread groove that extends along a helical line in an axial direction around a circumference of the threaded ring, where the helical line shows less than five full revolutions around the circumference of the threaded ring. The thread is screw-connected with a thread of the hub shell.

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.

A bicycle wheel includes a hub, a rim and spoke members extending between the hub and the rim; the hub comprising a plurality of hub members, wherein the wheel comprises three or more sectors, each sector comprising a circumferential rim section, an axial hub member and one or more spoke members extending between the hub member and the rim portion, wherein the wheel may be moved between a deployed configuration and a fully collapsed configuration, wherein in the deployed configuration the rim portions form a continuous circular rim of the wheel, wherein in the fully collapsed configuration the rim portions are arranged side by side in an axially adjacent arrangement, and wherein the hub members engage and form an axially expandable or collapsible hub.

A freehub of a bicycle contains: a body fitted and rotating on a rotary shaft. A receiving sleeve is connected with the body and fitted on the rotary shaft, and the receiving sleeve includes an accommodation holder configured to accommodate a freewheel. A ratchet assembly is mounted between the body and the receiving sleeve, the ratchet assembly includes multiple chutes, and a central axis of a respective chute is not parallel to a central axis of the rotary shaft. A toothed ring is fitted between the fixing element and the body. The ratchet assembly includes multiple teeth, multiple engagement elements, and multiple resilient elements. A respective resilient element abuts against the respective chute and a respective engagement element, such that the respective engagement element is urged by the respective resilient element to linearly move toward the respective tooth so as to engage with the respective tooth.

A new type of mechanism for human powered and electric-assist bicycles, provided within its rear wheel hub, that transfers drive motion from the drive-train to the wheel, while allowing non ratcheting freewheeling when coasting.

The mechanism uses of a pair of face gears, with the first gear fixed within the hubshell, while the second gear is rotary fixed but allowed to move axially within the freehub. The second gear is attached to prismatic sliding joints with springs, coiled over a shaft fixed to the hubshell.

Rotating the freehub in the forward direction by the drive-train, rotates the second gear, sliding on the prismatic joints to axially dispose it towards the first gear until they couple and transfer drive. When the freehub rotates in the opposite direction relative to the hubshell, the second gear moves away from the first gear, transferring an unwinding motion to the coiled springs that start to slip on the rotating shaft, allowing freewheeling.

The bicycle hub assembly includes a hub axle, a hub body, a bearing unit, a lock member, and a tool engagement member. The bearing unit is configured to rotatably support the hub body around the hub axle with respect to the rotational center axis. The bearing unit includes an outer race, an inner race and a plurality of rolling members. The lock member prevents the inner race of the bearing unit from rotating relative to the hub axle. The lock member has an outer peripheral surface. The tool engagement member is configured to rotate the inner race of the bearing unit relative to the hub axle. The tool engagement member has an inner peripheral surface. The inner peripheral surface of the tool engagement member is disposed radially outwardly relative to the outer peripheral surface of the lock member.

A hub assembly is provided for a human-powered vehicle. The hub assembly is basically provided with a hub axle, a hub body, an electric component and a user input device. The hub body is rotatably mounted on the hub axle to rotate around a rotational center axis of the hub assembly. The user input device is electrically coupled to the electric component.