Abstract: A front frame for a bicycle includes an upper tube, a lower tube and a head tube all of which are made of fiber reinforced material. The head tube extends integrally from a front end of the upper tube and a front end of the lower tube. The head tube has a chamber communicates with a chamber of the upper tube and a chamber of the lower tube. Two inner tubes are provided in the chamber of the upper tube. The abutted portions of the two inner tubes form a rib such that the structure strength of the upper tube is improved.

Abstract: A unique structure for an indoor exercise bike that provides strength in its design, as well as the flexibility to create an aesthetically appealing frame structure. The monocoque frame design, including two symmetrical halves joined together, forms a very strong, light shell that can take on a variety of shapes and sizes. The seat structure, handlebar structure, drive train and support platforms are all able to be readily attached to the primary frame structure to provide an exercise bicycle that is sturdy, easy to manufacture, and light enough to easily move when necessary.

Abstract: Disclosed herein are various embodiments, including but not limited to a bicycle that includes, among other features, an elongated down tube and a single elongated seat tube, the longitudinal axis of the seat tube intersecting the longitudinal axis of the down tube at a location substantially intermediate between the first and second ends of the down tube, wherein the distance between the spaced apart side outer surfaces of each of the down tube and the seat tube are less than the distance between the upper and lower outer surfaces of each of the down tube and seat tube; additionally including a seat tube, a seat tube sleeve, a crank assembly and a bottom bracket sleeve for mounting the crank assembly, wherein the seat tube sleeve has an upper end, a lower end, and a longitudinal axis extending from the upper end to the lower end; the seat tube being disposed within the seat tube sleeve, the longitudinal axis of the seat tube sleeve intersecting the bottom bracket sleeve.

Abstract: A bicycle part comprises a tubular bicycle member elongated in a first direction and having a partition forming an interior partitioned chamber that is elongated in the first direction. The bicycle member does not form an opening extending along the entire length of the partitioned chamber that exposes the partitioned chamber, but does include an insertion opening for inserting an elongated member into the partitioned chamber.

Abstract: A metal and fiber reinforced plastic composite combines a welded metal tube spine with a reinforced plastic composite seat assembly, top tube and seat stays.

Abstract: Disclosed herein are various embodiments, including but not limited to a bicycle that includes, among other features, an elongated down tube and a single elongated seat tube, the longitudinal axis of the seat tube intersecting the longitudinal axis of the down tube at a location substantially intermediate between the first and second ends of the down tube, wherein the distance between the spaced apart side outer surfaces of each of the down tube and the seat tube are less than the distance between the upper and lower outer surfaces of each of the down tube and seat tube; additionally including a seat tube, a seat tube sleeve, a crank assembly and a bottom bracket sleeve for mounting the crank assembly, wherein the seat tube sleeve has an upper end, a lower end, and a longitudinal axis extending from the upper end to the lower end; the seat tube being disposed within the seat tube sleeve, the longitudinal axis of the seat tube sleeve intersecting the bottom bracket sleeve.

Abstract: A bicycle including a frame member provided with a front wheel mounted on a shaft and a rear wheel mounted on a shaft, a saddle provided with a stepped tube for adjustably receiving the saddle to a rear portion of the frame member, a handlebar assembly rotatably attached to a front portion of the frame member, a fork assembly extending through the front portion of the frame member, said fork assembly being connected at one end to the handlebars and at the other end to the front wheel, a front fender and rear fender operatively associated with the frame member and extending over the front and rear wheels, respectively, a pair of pedals extending from opposite sides of the frame member, sprocket wheels connected to the pedals and the rear wheel, a drive chain for engaging the sprocket wheels, wherein the front portion of the frame member terminates in a tubular end that receives the fork assembly and the handlebars, and a lower portion of the frame member separates into two leg members which extend along opposi

Abstract: Disclosed herein are various embodiments, including but not limited to a bicycle that includes, among other features, an elongated down tube and a single elongated seat tube, the longitudinal axis of the seat tube intersecting the longitudinal axis of the down tube at a location substantially intermediate between the first and second ends of the down tube, wherein the distance between the spaced apart side outer surfaces of each of the down tube and the seat tube are less than the distance between the upper and lower outer surfaces of each of the down tube and seat tube; additionally including a seat tube, a seat tube sleeve, a crank assembly and a bottom bracket sleeve for mounting the crank assembly, wherein the seat tube sleeve has an upper end, a lower end, and a longitudinal axis extending from the upper end to the lower end; the seat tube being disposed within the seat tube sleeve, the longitudinal axis of the seat tube sleeve intersecting the bottom bracket sleeve.

Abstract: An electric motor driven cycle having front and rear wheels, a monocoque frame suspended between the front and rear wheels, and an electric motor coupled to one of the wheels, the electric motor being a load-bearing member of the frame. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.

Abstract: An electric motor driven cycle having front and rear wheels, and a monocoque frame suspended between the front and rear wheels. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.

Abstract: A net shape filament winding manufacturing process and resulting products are disclosed. The manufacture of bicycle frame and their components from filament wound components which have been cut from a section of filament wound stock is disclosed. Also disclosed is a bicycle frame and its manufacturing process and a composite bicycle fork and components thereof.

Abstract: A brazed bicycle frame and method for making. At least two bicycle frame half-shells are fabricated. A filler metal is then placed between the bicycle frame half-shells to form a two-part hollow frame section. The two-part hollow frame section is inserted into a hot volume at a temperature higher than the melting temperature of the filler metal but lower than the melting temperature of the two bicycle frame half-shells. The filler metal is allowed to melt. The filler metal is then allowed to cool and harden to form a rigid joint. Preferably, the bicycle frame half-shells each have a flange that facilitates alignment fixturing and assembly of the two-part hollow frame sections. Also it is possible for the filler metal and the bicycle frame half-shells to be placed in an extruded or formed grooved section. The grooved section also facilitates alignment fixturing and assembly of the two part hollow frame sections, and helps to strengthen the braze joint.

Abstract: A unit to replace the rear metal axles of children's tricycles, characterized by the fact that the unit is integrated with tricycle body (12) and is formed by an axle support (5), which is made up of three walls (13,14, 15) and is integral with corresponding axle bridges (1, 1′), where two rear wheels (18) of the tricycle are enclosed, whereby at its outer end each axle bridge has a circular peripheral protruding ring (3; 20) and at its inner end it has a circular peripheral protruding ring (4; 21).

Abstract: An elongated structural member is provided, which in a specific embodiment includes an outer thin-walled shell, with at least one elongated strut member and at least one planar rib member having an outer peripheral surface disposed within the shell in a plane which is substantially perpendicular to the longitudinal axis of the shell, a first portion of the outer periopheral surface of the at least one rib member contacting the inner surface of the shell and a second portion of the outer peripheral surface of the at least one rib member contacting the at least one strut member.

Abstract: A high-rigidity, light-weight pivot frame is provided. The pivot frame is separated into an upper cross member on the upper side and a pair of right and left pivot plate portions on the lower side. The upper cross member is a hollow forging with a neck portion and arm portions protruding to the right and left from the lower end. A fitting projection is formed in the forward end of each arm portion. The pivot plate portion is a thin forging with a number of recesses and ribs formed on the inside surface side, and can easily be assembled in proper position by fitting the fitting projection into a connecting recess formed in the upper end.

Abstract: Bicycle frame components without laps made by a method comprising; shaping a fluid-removable core in the general form of the component, placing a flexible inflatable bladder around the core, wrapping over the assembly of core and bladder at least one ply of fiber impregnated with a curable resin, forming a cured part by inflating the bladder while the assembly of core, bladder, and impregnated fiber is in a mold to force the plies against the inner surfaces of the mold, such that compaction of the fiber against the mold is predominantly from the bladder inflation and not from the core, and heating to cure the resin to form a cured part, removing the bladder and the fluid-removable core from the interior of the cured part by disintegrating the fluid-removable core with a fluid sufficient to allow removal of the core and the bladder.

Abstract: The bicycle frame of the invention is formed by selecting and adhesively joining previously formed and precured composite tubes to previously formed and precured composite lug components.

Abstract: A rear swingarm is made by casting an aluminum alloy having a front cross member with pivots at a front end thereof, a rear cross member having axle holders at the rear end thereof, and a pair of hollow arms connecting the front and rear cross members along the length of a buggy. The rear swingarm has an opening for cut-away excess metal, which is in the shape of an egg when viewed from above. A front wall, an inner wall and a rear wall, constituting the opening, are rounded with curvatures R1, R2 and R3, respectively. The inner wall is uniformly rounded with the curvature R2. A width of the arms is gradually increased from the front end thereof toward the rear end of the buggy.

Abstract: A human-powered ride-on vehicle for a rider includes an integrated body/frame element having a seat for the rider formed thereon; a pair of spaced-apart front wheels mounted to the body/frame element, wherein at least one of the front wheels is driven by the rider; a rear wheel mounted on the body/frame; and a steering mechanism to steer said the wheel, wherein the steering mechanism includes a control stick mounted for shifting movement; and a linkage between the control stick and the rear wheel is operable to shift the rear wheel in a predetermined direction corresponding to the control stick when the control stick is shifted.