Bicycle and a rear wheel suspension therefor
AssigneeMoulton Developments Limited
InventorAlexander Eric Moulton
Life of this patent
Estimating the term…
Abstract
A pedal bicycle having front and rear wheels is described wherein the rear wheel is supported on an arm structure which is pivotally connected to a main frame of the bicycle, the pivotal connection between the arm structure and the main frame being by a rubber bushed pivot bearing means so constructed and arranged that the rubber is wound elastically in torsion as the arm structure moves pivotally relative to the main frame of the bicycle. Preferably, the rubber bushed pivot bearing means includes a cyclindrical body of rubber bonded between inner and outer cylindrical metal shells with the outer metal shell being held fixed relative to the bicycle main frame and with the inner metal shell being held fixed relative to the arm structure which carries the rear wheel.
Claims6
A pedal bicycle having front and rear wheels wherein the rear wheel is supported on an arm structure which is pivotally connected to a main frame of the bicycle, the pivotal connection between the arm structure and the main frame being by a rubber bushed pivot bearing means having a cylindrical body of rubber bonded between inner and outer cylindrical metal shells with the outer metal shell being held fixed relative to the bicycle main frame and with the inner metal shell being held fixed relative to the arm structure which carries the rear wheel, said rubber bushed pivot bearing means so constructed and arranged that the rubber is wound elastically in torsion as the arm structure moves pivotally relative to the main frame of the bicycle, said arm structure having at a leading end a housing within which is rotatable an axle bridging two pedal cranks, said axle and a spindle of the rear wheel being parallel to one another.
A bicycle having front and rear wheels wherein the rear wheel is supported on an arm structure which is pivotally connected to a main frame of the bicycle, the pivotal connection between the arm structure and the main frame being by a rubber bushed pivot bearing means so constructed and arranged that the rubber is wound elastically in torsion as the arm structure moves pivotally relative to the main frame of the bicycle, said bicycle further including a handlebar, a saddle and a pedal crank assembly, the main frame supporting and maintaining in predetermined relationship said handlebar, said saddle, said pedal crank assembly, said pedal crank assembly including an axle bridging two pedal cranks, said axle being rotatable within a tubular housing which extends transversely of the bicycle and which is connected pivotally to the frame by a pair of lugs which extend from it to the pivotal connection.
A pedal bicycle having front and rear wheels wherein the rear wheel is supported on an arm structure which is pivotally connected to a main frame of the bicycle, the pivotal connection between the arm structure and the main frame being by a rubber bushed pivot bearing means so constructed and arranged that the rubber is wound elastically in torsion as the arm structure moves pivotally relative to the main frame of the bicycle, wherein the trailing arm structure supporting the rear wheel comprises a skeletal framework made up of small tubes welded together, having forks extending rearwardly on each side of the rear wheel;
- and wherein the arm structure has a generally triangular aspect in side view, with at a front apex, a transverse tube for housing an axle bridging two pedal cranks of the cycle;
- and wherein the arm structure has a rear apex where a spindle of the rear wheel is mounted on fork ends of the structure;
- and with the arm structure having an upper apex where there is a spring controlling swinging movement of the arm structure relative to the cycle frame, such swinging movement being permitted and achieved by a pivot located transversely on the cycle frame at the base of a seat tube thereof and immediately above the transverse tube housing the pedal crank axle with the said transverse housing tube having upwardly projecting lugs for connection with said transverse pivot.
Dependencies are inferred from the claim text.