摘要:
The invention disclosed herein is a very durable, lightweight, front fork assembly for use on competition bicycles. The invention provides improved fatigue and impact resistance compared to prior art designs. The invention makes maximum use of advanced, high strength composite materials and high strength, lightweight metal alloys, improving its stiffness-to-weight and strength-to-weight ratios. The superior structural performance of the invention is provided by a unique section geometry and ply configuration that efficiently utilizes the material to maximize bending and torsional stiffness while minimizing weight. The improved strength also comes from the superior control of the molding process, made possible with a removable pressure bladder that remains connected to the pressure source, and is regulated, during the molding process. The invention is produced using an efficient, "cigar" roll-up procedure where the fiber lay-up is first made in a flat pattern and later rolled up into the final "cigar" roll-up configuration.
摘要:
A high efficiency bicycle front fork suspension system in which the front fork and wheel assembly are isolated from the remaining parts of the bicycle frame by a leading, 3-point linkage arrangement configured to produce a trailing link action at the wheel. The suspension system, in its preferred configuration, includes one or more fluid logic, rotary dampers and one or more high performance elastomeric or conventional spring elements carried in rear stub or shortened fork blades.
摘要:
A high efficiency all terrain bicycle or motorcycle tire having a tread design in which spaced tread blocks are arranged in circumferential rows and overlapped to allow a smooth shift in load from one tread block to another in different circumferential rows with a minimum of casing hysteresis and at the same time provide a low rotating mass, low rolling resistance, high cornering adhesion with high consistency across differing types of ground conditions, high motive and stopping traction. The tread blocks in the different rows have shapes, spacings and orientations which createa plurality of tortous paths for flow of material without excessive constricting of flow in any one spot.
摘要:
The invention disclosed herein is a durable, lightweight, bicycle dropout-fitting design for use on high strength fiber reinforced composite frames and forks of competition bicycles. The invention provides improved fatigue and impact resistance compared to prior art designs. The invention is configured to make maximum use of modern cold metal forming methods to produce the connecting part and adhesive bonding and/or co-curing methods to join the part to the primary structure. The superior structural performance of the invention is provided by a unique geometry that efficiently utilizes the material properties of the part to maximize the rigidity and strength of the joint.
摘要:
A bicycle frame suspension comprises a single main tube having fore and aft ends and left and right sides with a head tube for rotatably mounting the front steering forks and front wheel secured to said fore end and a seat retention tube for mounting the seat secured to the aft end and bearings attached to either side of the main tube. A rigid rear triangle assembly has a bottom bracket for rotatably mounting the pedal and crank assembly. Left and right chain stay tubes have forward and trailing ends. A wheel fixing dropout is secured to each trailing end, respectively. The forward ends are secured to the bottom bracket. Left and right seat stay tubes have trailing ends secured in the proximity of the trailing ends of the chain stay tube and the dropouts, respectively. Pivot struts have upper and lower ends with the lower ends being secured to the bottom bracket, the upper ends being provided with bearing fittings and spaced apart a distance D and joined to forward ends of the seat stay tubes. A suspension spring assembly has one end connected to the bottom bracket and the other end connected to said main tube and proximate the aft end of the single main tube.
摘要:
A bicycle having an improved suspension system including a rotary damper and composite springs. Springs which closely control the direction of allowable movement in the suspension preclude rocking, twisting or unwanted lateral deflections.
摘要:
A high efficiency lightweight bicycle handlebar using strong, stiff fibers and a structural resin is disclosed. Relatively low modulus fibers are used in the axial direction and relatively high modulus fibers in the transverse or hoop direction. The hoop fibers are placed on the inside and outside diameters.
摘要:
A lightweight, high strength bicycle seat post for securing a bicycle seat to a seat tube of a bicycle frame. It comprises a hollow metal tubular member having a seat tube portion for reception in and securement to the seat tube of a bicycle frame, and an integral head portion comprised of four planar walls diverging in an upward direction to form an open space. A pair of the sidewalls are oriented in a fore and aft direction to the fore and aft direction of the bicycle seat and a pair of end walls which are transverse to the fore and aft direction and connects the fore and aft ends of the pair of sidewalls together defining the open space, which, preferably, is generally rectangular. The upper edges of the sidewalls have arcuate load reacting edges, which define a seat angle adjustment path, and a clamp assembly secures the bicycle seat to the load reacting edges so that the seat loads are transferred directly to the load reacting edges at any seat angle. In a preferred embodiment, the integral head portion is formed by a metal swaging process from an extruded metal tube and the metal tube is selected from steel, aluminum, or titanium alloy. The arcuate load reacting edges of the sidewalls can include a lip which is normal to the load reacting edges, and the clamp parts include washer members which have arcuate grooves for receiving the lip.
摘要:
This invention relates to front fork, telescoping type suspension systems for bicycles. The main focus of the invention is the brake bridge assembly, the fork crown assembly and the joinder of these assemblies to form the fork suspension. The brake bridge assembly serves two main functions: 1) it provides a stiff structural connection between the right and left telescoping struts, to reduce wheel wobble during high speed wheel impacts, and 2) it provides a structural support for the brake cable stop. The invention provides for increased stiffness and lower stresses in the brake bridge, which translates into improved directional stability for the front wheel, less displacement for the brake cable stop .(when the brake loads are applied) and improved fatigue life for the assembly. It also provides for a simpler and less expensive means for mounting the brake bridge to the fork assembly. The invention also encompasses the fork crown producing a lightweight structure with high torsional and bending rigidity. The connections of the stanchions to the crown are achieved through a variety of methods including, (a) interference fit and bonding, (b) collet assembly and (c) "pinch-bolt" connections.
摘要:
A lightweight handlebar/steerer locking mechanism for use on road and mountain bicycles. The invention provides higher fatigue and impact resistance, lower material and production costs, and improved adjustability, compared to prior art designs, all at a reduced weight.The superior structural performance of the invention is provided by a unique, 3-dimensional, sliding, compression wedge. The 3-dimension wedge improves the stress distributions within the device my introducing a more uniform wedging (locking) action on the circumference of the steerer tube. This allows the mating parts to be designed lighter, thereby reducing the total weight of the assembly. The configuration of the design also lends itself to modern metal working methods. This further improves the strength of the parts by increasing the material allowables. Also, these metal working operations help to reduce material scrap, thus reducing material costs.The invention improves the adjustability of the handle-bar assembly by allowing the locking and un-locking function to be accomplished by hand, without any assistance from a special tool. The locking function is activated and de-activated by the twisting of a tightening cap. This can be done by hand, from the sitting position of the bicycle rider.