Patent Application
20170369113
The present invention is the subject of bicycle training wheel assembly that relates particularly to the use of spherical wheel in the assembly.
Training wheel assembly that are presently available in the market typically comprise conventional cylindrical wheels and rigid brackets affixed to the bicycle rear wheel axle. This type of assembly does not provide the rider adequate relief from imbalance or provide adequate protection from a fall in an unstable situation when the rider is riding over uneven surface or, when she is turning the bicycle. This deficiency is largely due to the rigid construction of the conventional cylindrical wheel based bicycle training wheels, and makes for a difficult learning process for the rider.
A number of patents for bicycle training wheel assembly have been registered with United States Patent and Trademark Office, showing various designs that attempt to address this problem. These patents are classified under patent classification B62H and some of these are referenced by the following US patent numbers:
U.S. Pat. No. 6,318,745, U.S. Pat. No. 6,331,012, U.S. Pat. No. 7,226,067, U.S. Pat. No. 7,641,213, U.S. Pat. No. 7,712,759 B2, U.S. Pat. No. 8,944,453.
The above patents do not show that spherical wheel is used in the bicycle training wheel assembly. The author is not aware of any other prior art that have shown to use spherical wheel in the construction of bicycle training wheel assembly.
The present invention described below is an improvement over prior art and it also provides other related advantages.
The present invention relates to a bicycle training wheel assembly that uses uniquely, spherical wheel made of rubber or polyurethane substances of optimal consistency for this utility, as opposed to using the conventional cylindrical wheel. The foregoing properties of the said spherical wheel provide bounce and shock absorption. This invention allows the rider to obtain better balance and stability while learning to ride the bicycle. The assembly attaches to both sides of the bicycle rear wheel axle.
The primary objective of the said invention is to enable the rider to learn to ride a bicycle easily in the following ways:
When the rider is learning to ride the bicycle and the bicycle tilts to one side, the spherical wheel of the assembly is engaged against the ground. On engagement, the centrifugal contact so made, provides a small bounce to help balance the bicycle to the centre. The natural inertial inclination of the rider is to exert a pull to the other side of the bicycle, resulting in another small bounce. This act teaches the rider of her natural inclination to seek balance.
A further objective of the present invention is to provide a training wheel assembly, whereby the spherical wheel provides a cushion in case the bicycle tilts significantly to one side. When greater pressure is exerted on the spherical wheel that results from excessive tilt, the spherical wheel with its properties of shock absorption, and its inherent properties of central equilibrium, restrains the bicycle from toppling over and thus provides relief to the learner from possible injury. In this manner, the rider obtains reassurance and gain greater confidence in her ability to understand the balancing nature of the bicycle. The rider's learning curve is thus expected to be reduced.
The secondary objective of the said training wheel assembly, once the primary function is fulfilled is when the training wheel assembly is detached from the rear bicycle wheel and disassembled. Upon disassembly, components of the training wheel assembly are reconstituted to create hooks and hangers for small objects and tools. This is in keeping with the desire to reduce waste after the initial object is satisfied.
Advantages of the present invention are the following;
The assembly construction is simple and easy to assemble, install, adjust and use. These will be observed from the description of the drawings.
The possibility of injury to the rider is reduced by the protection afforded by the said properties of spherical wheel, in instances of instability caused by riding over uneven surfaces or while taking a turn.
The following drawings form part of the specification and are to be construed in conjunction therewith:
The bracket (component 2) is an intermediary that is used to assemble the bicycle wheel axle to the arm (component 3), spherical wheel (component 4) and the axle (component 5) together. The bracket is made of steel and comprises parts 2a, 2b, 2c and 2d. Part 2a is a groove through which the bicycle rear wheel axle is fastened to the bracket by a threaded nut in
The arm (component 3) is made from C Channel section steel and comprises parts 3a and 3b. Part 3a is a representative view of several threaded grooves placed vertically at equal intervals, in the upper part of the arm. The arm slides snugly and effortlessly against the bracket at a desired height from the ground at which point it is affixed by screws (part 6) to the bracket (component 2). The C Channel section steel arm is designed to provide additional strength and support to the arm when affixed to the bracket. Part 3b is a groove through which the threaded end of the axle (component 5) is passed to be fastened by a spring washer (part 8) and threaded nut (part 9).
The spherical wheel (component 4) is composed of rubber or polyurethane substances of optimal consistency for this utility. A groove through the diameter of the said wheel allows cylindrical tubing (part 4a) that is made of plastic or steel, to be inserted in the groove to facilitate the axle (component 5) to pass through the tubing.
The axle (component 5) is a metal object, threaded at one end. The threaded end of the axle is passed through the tubing (part 4a). A threaded nut (part 7) is affixed to the axle to hold the spherical wheel in place, leaving only a small space for mobility of the wheel. The remainder of the threaded end of axle is now passed through the groove (part 3b) of the arm (component 3). The assembly is completed by affixing a spring washer (part 8) and a threaded nut (part 9) to the remaining part of the threading in the axle.
