摘要:
A durable, airless, chainless bicycle multiple riders of differing heights is disclosed. The bicycle is propelled by a drive shaft instead of a chain, making the drive assembly more dependable. The tires are made from a solid material and cannot go flat. The frame and other components of the bicycle are either inherently rust resistant or are coated to increase their rust resistance. The bicycle also has a front basket that is mounted such that the basket does not turn when the front wheel turns. Finally, the bicycle has a seat adjustment mechanism which allows the seat height to be adjusted without tools.
摘要:
Motor vehicle wheel including a wheel rim and a tire having a tire interior enclosed by the wheel rim and the tire. The tire is mounted on the wheel rim, and the wheel also includes an insert composed of a ring-shaped sound-absorbing material that is positioned within the tire interior. The wheel further includes an acoustically transparent support element having tensile strength, at least in a circumferential direction of the tire, that is coupled to the insert.
摘要:
A puncture resistant pneumatic tire including a casing and an inner tube where the side walls of the casing flex under load a known amount, the method of designing a puncture shield which does not fail from reversion when driven at high speeds. The shield is made in a mould from liquid natural rubber a foaming agent and other compounds. The outer surface of the ring is contoured to mate with the lower inside of the tire casing and the upper or inner surface of the ring is designed to protect the tube from bulging in use and to be able itself to withstand flexing at the flex zone of the casing, by forming the inner surface with a convex shape at its outer sides and by flattening and upwardly bulging the inner surface of the shield where it overlies the tread portion of the tire to create tapered wings at its sides as seen in cross section and a massive puncture resistant portion over the tire treads.