Karbon Kinetics Limited

Richard Brian Thorpe

Samuel John Mortimer

Mark Parling

Peter Angiolini

Alexander Flatt

A pedal driven cycle comprising a belt drive connecting a power input sprocket to a driven sprocket along a chain line; an outer protective belt drive cover plate having a footprint which substantially coincides with a side profile of the belt drive along at least a major portion of its length of travel so that the outer cover plate does not extend beyond an outer surface of the belt drive; and fixtures for mounting the outer protective belt drive cover plate to the cycle in parallel with the chain line and laterally spaced apart from a side edge of the belt drive to provide a clearance, with fore and aft adjustment.

Belt driven pedal cycle employing a slim protective belt drive cover

Label

There is described a quick-release arrangement for mounting a bicycle wheel () to a hub of a bicycle frame () using a single-sided mount. The quick-release arrangement includes a number of levers () each movable between a closed position, in which the wheel is retained to the bicycle hub, and an open position in which the wheel is freely removable. A locking ring () is mounted to the bicycle wheel and is rotatable between an open position and a locked position. When the locking ring () is in the locked position, hooks () on the locking ring () are engageable with pins () mounted on the levers (), to prevent the levers () from moving out of their closed positions. The locking ring () may be mounted to a lever cover plate () which is fixed to the wheel and arranged so as to partially cover the levers () when they are in their closed positions. The lever cover plate () may have a window () through which an indicator is visible to indicate the position of the locking ring ().

Locking device for bicycle wheel quick release mechanism

There is described a handlebar mountable bicycle light for fitting to a bicycle handlebar () between brake levers (). The bicycle light comprises an upper cover () and a lower cover () which are preferably made from injection molded plastics and of a clam shell type arrangement able to receive handlebar () and rigidly retain light pipe assembly () with cover screws (). Lower cover () contains an aperture () through which the handlebar stem () extends. The light pipe assembly () comprises a transparent rod-like light pipe () with LEDs () mounted at each end of the light pipe (). The light pipe assemblyfurther includes heat sinks () to draw heat away from the LEDs (). The arrangement is such that when the bicycle light is mounted to the handlebar, the heat sinks () are in contact with the handlebar so that heat from the LEDs may be conducted via the heat sinks () to the handlebar material.

Handlebar mountable light pipe apparatus for a bicycle

Bicycle handlebar with a front facing light

Bicycle handlebar

A wheel and rear hub gearbox assembly for single-sided mounting to a bicycle frame, with the gearbox mounted to the frame by a bearing situated intermediate the axial extent of the gearbox casing. The wheel is detachably mounted to the gearbox casing by cooperating mounting formations on the wheel and at one end of the casing. The wheel is positioned relative to the gearbox such that when the wheel is mounted to the gearbox casing, the bearing is central, in the axial direction, relative to the wheel.

Rear wheel assembly for a bicycle

There is described a shock absorber strut for a bicycle, comprising a piston (), a cylinder () and a resilient element () positioned within the cylinder. The piston extends out of one end of the cylinder, and the other end of the cylinder is closed by a casing made up of two housing halves. Mounting bushings are integrally formed in the housing halves and on the piston end, respectively, for fixing the shock absorber to a bicycle frame. The piston () can be withdrawn from the cylinder () by a simple tension, without the use of tools.

Shock absorber

There is described a bicycle () in which the rear wheel () is provided with a planetary hub gearbox () and is mounted on a single rear arm () positioned to one side of the rear wheel. The planetary gearbox comprises an outer casing () having an external bearing surface to engage a bearing mounted to the rear arm () of the bicycle, and releaseable mounting means for attaching the rear wheel () of the bicycle to the outer casing () of the planetary hub gearbox (). The rear arm is of tubular or hollow construction, with the drive chain () or belt running enclosed within the rear arm ().

Growing community of inventors

Surrey, United Kingdom

Richard Brian Thorpe