Abstract: A control mechanism for decoupling a drive ratchet on a bicycle hub makes it possible to push the bicycle backwards while the foot pedals of the pedal crank drive remain still. These functions can be applied to folding bicycles, in which pedal movements are harmful when in their folded up state. The control mechanism includes a controlling sleeve coupled to the drive ratchet, which is indirectly connected by means of a frictional device to the unmoving hub axle.

Abstract: A control mechanism for decoupling a drive ratchet on a bicycle hub makes it possible to push the bicycle backwards while the foot pedals of the pedal crank drive remain still. These functions can be applied to folding bicycles, in which pedal movements are harmful when in their folded up state. The control mechanism includes a controlling sleeve coupled to the drive ratchet, which is indirectly connected by means of a frictional device to the unmoving hub axle.

Abstract: A detachable coupling for connecting a pull cable connected to a shift actuator to a shifting cable connected to an internal gear hub for transmitting a shifting movement of the shift actuator to the internal gear hub. The detachable coupling includes an internal gear hub casing having a cable guide extending therefrom and a connecting sleeve having a contoured slot configured to be removably attachable to the cable guide. An end of the shifting cable is configured to be removably coupled to an end of the pull cable for transmitting the shifting movement along a cable transmission path.

Abstract: A multi-speed hub for a bicycle that includes a hub shell, a hub shaft nonrotatably mounted to the bicycle, a driver, a planetary gearing system for providing a plurality of gear ratios and a control device for selecting the desired gear ratio. The planetary gearing system includes first, second and third planetary gear mechanism. The first planetary gear mechanism includes a first sun gear, a first planet carrier and a first ring gear, The first ring gear also functions as the planet carrier for the second planetary gear mechanism. A second sun gear of the second planetary gear mechanism is connected to the first planet carrier. The second planetary mechanism includes a second ring gear that substantially surrounds the planetary gearing system. A pawl carrier including a plurality of pawls that connect the driver to the planetary gearing system to provide different gear ratios. A stepped planet gear functions as the second and third planet gears.

Abstract: A multi-speed hub for a bicycle that includes a hub shell, a hub shaft nonrotatably mounted to the bicycle, a driver, a planetary gearing system for providing a plurality of gear ratios and a control device for selecting the desired gear ratio. The planetary gearing system includes first, second and third planetary gear mechanism. The first planetary gear mechanism includes a first sun gear, a first planet carrier and a first ring gear, The first ring gear also functions as the planet carrier for the second planetary gear mechanism. A second sun gear of the second planetary gear mechanism is connected to the first planet carrier. The second planetary mechanism includes a second ring gear that substantially surrounds the planetary gearing system. A pawl carrier including a plurality of pawls that connect the driver to the planetary gearing system to provide different gear ratios. A stepped planet gear functions as the second and third planet gears.

Abstract: A detachable coupling device for connecting a pull cable connected to a shift actuator to a shifting cable connected to an internal gear hub for transmitting a shifting movement of the shift actuator to the internal gear hub. The detachable coupling includes an internal gear hub casing having a cable guide extending therefrom and a connecting sleeve having a contoured slot configured to be removably attachable to the cable guide. An end of the shifting cable is configured to be removably coupled to an end of the pull cable for transmitting the shifting movement along a cable transmission path.