Title of Invention

A GEAR TRAIN SYSTEM FOR A BICYCLE AND A METHOD THEREOF

Abstract

ABSTRACT The present invention provides a solution to the problem seen with the existing bicycles, wherein it is seen that that the rotation of rear wheel is directly proportional to rotations given to pedals by rider. Here, the application of instant invention provides a gear train system which helps in increasing the speed of the bicycle by four times with single pedaling. The main advantage of this gear bicycle is that with little effort on pedals of the bicycle, the speed or the distance traveled is increased considerably.

Full Text

FIELD OF THE INVENTION The present invention relates to a geared bicycle. More particularly, the present invention is in relation to a gear train system which helps in increasing the speed of the bicycle upon little effort on pedaling by the subjects. The speed of the bicycle is increased considerably using the instant gear train system. BACKGROUND OF THE INVENTION In the existing trends of the bicycle it is seen that the rotation of rear wheel is directly proportional to rotations given to pedals by rider. The efficiency of the existing bicycle is less when compared with the new invention of gear bicycle which has gear train system in view of speed or distance traveled. The main advantage of this gear bicycle is that with little effort on pedals of the bicycle, the speed or the distance traveled is increased considerably. OBJECTS OF THE INVENTION The principal object of the present invention is to develop a gear train system for a bicycle transmitting rotary motion from a primary axle (A) to a hollow secondary axle IB). Yet another object of the invention is to develop a splined gear wheel (100) having twice the number of gear tooth of splined gear wheel (200) gear. Still another object of the invention is to develop a splined gear wheel (300) having twice the number of gear tooVh of splined gear wheel (400) gear. Still another object of the invention is to provide the gear train system in drive mechanism of cycle. Still another object of the invention is to develop a method for transmitting rotary motion from a primary axle (A) to a hollow secondary axle (B) of a gear train system of a bicycle. Still another object of the invention is to provide rotation for primary axle (A) in forward direction having splined gear wheel (100) meshed with splined gear wheel (200) of counter axle (C), Still another object of the invention is to provide interconnecting the splined gear wheel (200) with splined gear wheel (300) of said counter axle (C). Still another object of the invention is to provide meshing for the splined gear wheel (300) with splined gear wheel (400) of hollow secondary axle (B) to transmit rotary motion. STATEMENT OF INVENTION Accordingly the invention provides a gear train system for a bicycle for transmitting rotary motion from a primary axle (A) to a hollow secondary axle (B), said system comprises a primary axle (A) having splined gear wheel (100) is inserted into a hollow secondary axle (B) and are connected through clutch pin holes (101) of the splined gear wheel (100) and ratchet gears (401) of the secondary axle (B); and a counter axle having plurality of splined gear wheels (200 and 300) meshed with the splined gears (100 and 400) of the primary and secondary axles respectively, wherein clutch pin holes (301) of the splined gear wheel (300) interconnects ratchet, gears (201) of the splined gear wheel (200), and a method for transmitting rotary motion from a primary axle (A) to a hollow secondary axle (B) of a gear train system of a bicycle, said method comprises steps of rotating primary axle (A) in forward direction having splined gear wheel (100) meshed with splined gear wheel (200) of counter axle (C), interconnecting the splined gear wheel (200) with splined gear wheel (300) of said counter axle (C), and meshing the splined gear wheel (300) with splined gear wheel (400) of hollow secondary axle (B) to transmit rotary motion. BRIEF DESCRI'TION OF ACCOMPANYING DRAWINGS Figure 1: shows the lop view of the axle portion of ordinary bicycle with pedals and pedai arms. Figure 2: shows the front view and bottom view of the primary axle (A). Figure 3; shows the front view and the bottom view of hollow secondary axle (B). Figure 4: shows the front and bottom view of the assembled portion of primary axle (A) with the hollow secondary axle (B). Figure 5: (a) shows front and bottom view of the splined gear wheel (200) which has ratchet gears (201) on right side face. (b) shows the front and bottom view of the counter axle (C) which has a splined gear wheel (300) which in turn has two clutch pin holes (301) on left side face. Figure 6: shows front and bottom view of assembled portion of splined gear wheel (200) with counter axle (C). Figure 7: shows the top view of the entire gear train system in engaged stage. Figure 8: shows the top view of the entire gear train system in disengaged stage. Figure 9: (a) shows a graph in which the plot of number of cycles of pedals verses speed of the bicycle is linear which indicaves that the number of cycles of pedals is directly proportional to the speed in case of ordinary bicycle. (b) .shows a graph in which the plot of number of cycles of pedals verses speed of the bicycle which indicates that as the number of cycles of pedals is increased the speed is also increased drastically (one rotation of pedals rotate four times the sprocket wheel which in turn rotates rear wheel. Figure 10: (a) shows a graph in which the plot of number of cycles of pedals verses distance of the bicycle is linear which indicates that the number of cycles of pedals is directly proportional to the distance in case of ordinary bicycle. (b) shows a graph in which the plot of number of cycles of pedals verses distance of the bicycle which indicates that as the number of cycles of pedals is increased the distance is also increased drastically. DETAILED DESCRIPTION OF THE INVENTION The present invention is in relartion to a gear train system for a bicycle for transmitting rotary motion from a primary axle (A) to a hollow secondary axle (B), said system comprises a primary axle (A) having splined gear wheel (100) is inserted into a hollow secondary axle (B) and are connected through clutch pin holes (101) of the splined gear wheel (100) and ratchet gears (401) of the secondary axle (B); and a counter axle having plurality of splined gear wheels (200 and 300) meshed with the splined gears (100 and 400) of the primary and secondary axles respectively, wherein clutch pin holes (301) of the splined gear wheel (300) interconnects ratchet gears (201) of the splined gear wheel (200), In yet another embodiment of the present invention the splined gear wheel (100) has twice the number of gear tooth of splined gear wheel (200) gear. In still another embodiment of the present invention the splined gear wheel (300) has twice the number of gear tooth of splined gear wheel (400) gear. In still another embodiment of the present invention the said system is provided in drive mechanism of cycle. The present invention is in relation to a method for transmitting rotary motion from a primary axle (A) to a hollow secondary axle (B) of a gear train system of a bicycle, said method comprises steps of rotating primary axle (A) in forward direction having splined gear wheel (100) meshed with splined gear wheel (200) of counter axle (C), interconnecting the splined gear wheel (200) with splined gear wheel (300) of said counter axle (C), and meshing the splined gear wheel (300) with splined gear wheel (400) of hollow secondary axle (B) to transmit rotary motion. In still another embodiment of the present invention the splined gear wheel (200) speed is twice the speed of splined gear wheel (100). In still another embodiment of the present invention the interconnection between splined gear wheel (200) and splined gear wheel (300) rotates said splined gear wheels (200 and 300) in same direction. In still another embodiment of the present invention the said meshing of splined gear wheel (300) with splined gear wheel (400) rotates splined gear wheel (400) in reverse direction to that of splined gear wheel (300). In still another embodiment of the present invention the splined gear wheel (400) speed is twice the speed of splined gear wheel (300). Figure I: shows the top view of the axle portion of ordinary bicycle with pedals and pedal arms. The rotation of the sprocket wheel is as same as the rotations of the pedals given by the rider. There is no arrangement of gears in the centre axle. The motion is transmitted directly from pedals to sprocket wheel. Figure 2 : shows the front view and bottom view of the primary axle (A) which contains splined gear wheel (100) which has two clutch pin holes (101) on right face and the splined gear wheel is located at a distance of'/4"' length of primary axle (A) on its left side. Figure 3 : shows the front view and the bottom view of hollow secondary axle (B) which contains a splined gear wheel (400) which has ratchet gears (401) on its left side and a sprocket wheel on its right side. Figure 4: shows the front and bottom view of the assembled portion of primary axle (A) with the hollow secondary axle (B) in which the primary axle (A) in inserted into hollow secondary axle (B) and are linked by the use of clutch pin holes of splined gear wheel( 100) and ratchet gears (401) of splined gear wheel (400). Figure 5: (a) shows front and bottom view of the splined gear wheel (200) which has ratchet gears (201) on right side face. (b) shows the front and bottom view of the counter axle (C) which has a splined gear wheel (300) which in turn has two clutch pin holes (301) on left side face. Figure 6: shows front and bottom view of assembled portion of splined gear wheel (200) with counter axle (C) which has splined gear wheel (300) and are linked by the use of ratchet gears (201) of splined gear wheel (200) and clutch pin holes (301) of splined gear wheel (300). Figure 7: shows the top view of the entire gear train system in engaged stage in which the splined gear wheel (100) is meshed with splined gear wheel (200) and the splined gear wheel (300) is meshed with splined gear wheel (400). Figurc 8: shows the top view of the entire gear train system in disengaged stage in which the splined gear wheel (100) is not meshed with splined gear wheel (200) and the splined gear wheel (300) is not meshed with splined gear wheel (400). Figure 9: (a) shows a graph in which the plot of number of cycles of pedals verses speed of the bicycle is linear which indicates that the number of cycles of pedals is directly proportional to the speed in case of ordinary bicycle. (b) shows a graph in which the plot of number of cycles of pedals verses speed of the bicycle which indicates that as the number of cycles of pedals is increased the speed is also increased drastically (one rotation of pedals rotate four times the sprocket wheel which in turn rotates rear wheel). Figure 10: (a) shows a graph in which the plot of number of cycles of pedals verses distance of the bicycle is linear which indicates that the number of cycles of pedals is directly proportional to the distance in case of ordinary bicycle. (b) shows a graph in which the plot of number of cycles of pedals verses distance of the bicycle which indicates that as the number of cycles of pedals is increased the distance is also increased drastically. When the effort is applied on pedals, the primary axle (A) rotates in forward direction and the motion is transmitted from splined year wheel (100) to splined gear wheel (200) .Then the splined gear wheel (200) rotates reverse direction to that of splined gear wheel (100) (because of the splined gear wheel (100) and splined gear wheel (200) are engaged as spur gear system). The splined gear wheel (200) rotates the splined gear wheel (300) on reverse direction as the splined gear wheel (200) and splined gear wheel (300) are on same counter axle and are connected through ratchet gears (201) of splined gear (200) and clutch pin holes (301) of splined gear wheel (300). Simultaneously the splined gear wheel (300) rotates the splined gear wheel (400) on forward direction due lo meshing between them hence the motion is transmitted from splined gear wheel (300) to splined gear wheel (400),And the splined gear wheel (400) rotates the sprocket wheel which is mounted on the hollow secondary axle (B). Hence the motion is transmitted to the rear wheel of bicycle from the sprocket wheel through the chain. If the splined gear wheels (200) and splined gear wheel (300) are disengaged as show in Figure No.8 the motion will transmitted from splined gear wheel (100) to splined gear wheel (400) directly (since the clutch pin holes (101) of splined gear wheel (100)) coincides with the ratchet gears (401) of splined gear wheel (400) and allows motion only in forward direction) then the sprocket wheel gets power from hollow secondary axle (B) as in case of ordinary bicycle Let The splined gear wheel (100) made for one revolution D1- diameter of splined gear wheel [distance moved by the splined gear wheel (100) for one revolution =πD1 hence the distance moved by the splined gear wheel (200) is equal to the splined gear whcei (100), but the angle made by the splined gear wheel (200) The angle made by splined the gear wheel (300) is same as that of gear wheel (200) and the distance moved by the splined gear wheel (300) is πD3 and is not equal distance moved by the splined gear wheel (200) {i.e..splincd gear wheel (200) so for one revolution of the splined gear wheel (100) on primary axle (A) i.e., 360". then the splined gear wheel (400) on the hollow secondary axle (B) makes y' for one revolution. Rotation of splined gear wheel (100) = 360 Rotations of the gear wheel (400) =[D1/D2* D3/D.4] *360" - [D1/D2* D3/D4J * rotation Therefore the difference of cotations between the splined gear wheel (iOO) on primary axle (A) and splined gear wheel (400) on secondary axle (B) depends on the diameter D2, D4 in the measurement. The technology of the instant Application is further elaborated with the help of following examples. However, the examples should not be construed to limit the scope of the invention. EXAMPLE 1: The splincd gear wheel (100) on primary axle (A) completes 1 revolution on forward direction by pedal, which in turn rotates the splined gear wheel (200) on counter axle(C) makes 1.1/2 revolutions in reverse direction. The gear wheel (300) on the counter axle(C) also makes 1,1/2 revolutions on reverse direction. The gear wheel (400) on hollow secondary axle (B) makes 2.1/4 revolutions forward direction which is on the hollow secondary axle (B). Hence the sprocket wheel also makes 2.t/4 revolutions. 'I'he pre wheel is connected lo the sprocket wheel by means of chain. And makes the pre wheel 4.1/4 rotations. Hence the back wheel of bicycle also makes 4 1/4 rotations. It means one rotation of pedal is equal to 4.1/4 rotations of back wheel. Thus, it is evident that the gear train system of the instant invention helps in achieving quadruplicate rotation with single pedaling. In addition, the speed or rotations of the gear train system can be varied by varying the gear ratios among the gears used in the gear train system, 'thus. the instant invention helps the subjects to travel more distance with minimum effort. 1 Claim: 1. A gear train system for a bicycle transmitting rotary motion from a primary axle (A) to a hollow secondary axle (B), said system comprises a primary axle (A) having splined gear wheel (100) is inserted into a hollow secondary axle (B) and are connected through clutch pin holes (101) of the splined gear wheel (100) and ratchet gears (401) of the secondary axle (B); and a counter axle having plurality of splined gear wheels (200 and 300) meshed with the splined gears (100 and 400) of the primary and secondary axles respectively, wherein clutch pin holes (301) of the splined gear wheel (300) interconnects ratchet gears (201) of the splined gear wheel (200). 2. The gear train system as claimed in claim 1, wherein the splined gear wheel (100) has twice the number of gear tooth of splined gear wheel (200) gear. 3. The gear train system as claimed in claim 1, wherein the splined gear wheel (300) has twice the number of gear tooth of splined gear wheel (400) gear. 4. The gear train system as claimed in claim 1, wherein said system is provided in drive mechanism of cycle. 5. A method for transmitting rotary motion from a primary axle (A) to a hollow secondary axle (B) of a gear train system of a bicycle, said method comprises steps of a. rotating primary axle (A) in forward direction having splined gear wheel (100) meshed with splined gear wheel (200) of counter axle (C), b. interconnecting the splined gear wheel (200) with splined gear wheel (300) of said counter axle (C), and c. meshing the splined gear wheel (300) with splined gear wheel (400) of hollow secondary axle (B) to transmit rotary motion. 6. The method as claimed in claim 5, wherein the splined gear wheel (200) speed is twice the speed of splined gear wheel (100). 7. The method as claimed in claim 5, wherein the inlerconnection between splined gear wheel (200) and splined gear wheel (300) rotates said splined gear wheels (200 and 300) in same direction. 8. The method as claimed in claims 5. wherein said meshing of splined gear wheel (300) with splined gear wheel (400) rotates splined gear wheel (400) in reverse direction to that of splined gear wheel (300). 9. The method as claimed in claim 5, wherein the splined gear wheel (400) speed is twice the speed of splined gear wheel (300). 10. A gear train system and a method as herein described with reference to the accompanying drawings.

Documents:

1522-che-2005 abstract-duplicate.tif

1522-che-2005 abstract.pdf

1522-che-2005 claims-duplicate.pdf

1522-che-2005 claims.pdf

1522-che-2005 correspondence-others.pdf

1522-che-2005 correspondence-po.pdf

1522-che-2005 description (complete)-duplicate.pdf

1522-che-2005 description (complete).pdf

1522-che-2005 drawings-duplicate.pdf

1522-che-2005 drawings.pdf

1522-che-2005 form-1.pdf

1522-che-2005 form-13.pdf

1522-che-2005 form-18.pdf

1522-che-2005 form-26.pdf

1522-che-2005 form-5.pdf

1522-che-2005 form-9.pdf