Claims:We claim:
1. An assembly for a variable geometry dual braking system for a two-wheeler vehicle with a horizontally oriented spring, cam and roller profile, wherein the improvement comprises:
a. at least one variable adjuster (101) for maintaining a pre-defined angular orientation of the variable geometry dual braking system for a two-wheeler vehicle to ensure optimum operation of the variable geometry dual braking system under all drive cycles;
b. a spring (102) disposed between a linkage comprising the roller (103) and a linkage (104) comprising the variable adjuster (101), wherein the angular orientation of the spring (102) ensures simultaneous engagement of the front brake and rear brake upon application of a minimum braking force in a two-wheeler vehicle.

2. The assembly as claimed in claim 1, wherein the variable adjuster (101) is adjusted within a pre-defined wide threshold range.

3. The assembly as claimed in claim 1, wherein the angular orientation of the spring (102) ensures uniform braking between the front brake and rear brake thereby reducing the wear and tear of the front brake and rear brake of a two-wheeler vehicle.

4. The assembly as claimed in claim 1, wherein the angular orientation of the spring (102) which ensures simultaneous engagement of the front brake and rear brake of a two-wheeler vehicle, eliminates the utility of a physical lever to provide additional braking force at the front brake of a two-wheeler vehicle.
, Description:PREAMBLE TO THE DESCRIPTION:
[0001] The following specification particularly describes the invention and the manner in which it is to be performed:

DESCRIPTION OF THE INVENTION
Technical field of the invention
[0002] The present invention generally relates to an assembly for a variable geometry dual braking system with a variable adjuster mechanism. Further, the present invention particularly relates to a variable adjuster mechanism for maintaining a pre-defined angular orientation of the variable geometry dual braking system.
Background of the invention
[0003] Modern day combined braking systems are not prevalent in two-wheeler vehicles as all the two-wheeler vehicles today utilize a braking system, wherein the operator has to separately engage the brakes on the front and rear wheels of the vehicle. The reason for not employing combined braking systems in today’s two-wheelers is that they are often unreliable and fail to operate for substantial periods of time without being overcome by issues such as frictional wear and tear and misalignment of the apparatuses that results in undesirable braking effect.
[0004] The combined braking mechanism that exists today suffers from the issue of not being able to engage the front and rear brakes of a two-wheeler vehicle, simultaneously, especially in situations of irregular braking. It is observed that in the minimal braking effect requirement, the rear brake takes up a majority of the braking responsibility. While this may not make a difference for ordinary road conditions, but in case the operator requires minimal braking during driving over a road with low friction, this could result in dangerous consequences. Additionally, if the braking system happens to slacken as a result of overuse, it is possible for the braking system to fail at any speeds when braking is required, resulting in undesirable effects for the driver.
[0005] The Patent Application No. 201614028951 titled “Geometry Change Braking System” discloses an apparatus that allows for variable ratio braking between the front and rear brakes by means of a geometry change in the apparatus. The patent is applicable for 2-wheelers wherein there is a need for a higher braking effect under difficult road conditions. The apparatus offers higher rear braking at low braking needs and as and when the braking needs exceed a certain spring force threshold, the front brake also gets engaged simultaneously with the rear brake to bring about a uniform net braking effect. The spring is oriented in such a way that below the spring threshold braking need, the front brake does not get engaged at all. This means that if the operator requires a minimal amount of braking, the geometry of the braking system will not change as to allow front braking. At low speeds, only the rear brake gets engaged, leading to dangerous driving conditions in the case of roads that have a low friction coefficient. In addition to this, there is also no provision for maintaining the orientation of the apparatus in case of any misalignment. The geometry of the apparatus may change upon continued usage of the braking system which will lead to undesirable braking action and ineffective braking when it is most required. This undesirable braking action leads to premature degradation of the brakes and results in the braking apparatus remaining operational for a short amount of time. This is very unreliable and creates a need for constant maintenance of the apparatus, leading to higher running costs of operation of the braking apparatus.
[0006] Hence, there is a need for a variable brake change system that offers simultaneous front and rear brake engagement at all braking requirements.
Summary of the invention:
[0007] The present invention overcomes the drawbacks of the prior art by providing an assembly for a variable geometry dual braking system with a variable adjuster mechanism by employing at least one variable adjuster for maintaining a pre-defined angular orientation of the variable geometry dual braking system for a two-wheeler vehicle. This ensures optimum operation of the variable geometry dual braking system under all drive cycles. The invention also includes a spring, wherein the angular orientation of the spring ensures simultaneous engagement of the front brake and rear brake upon application of a minimum braking force in a two-wheeler vehicle.
[0008] The present invention provides a variable adjuster mechanism which is an improvement over the existing variable geometry dual braking systems. The variable adjuster is provided to maintain the angular orientation of the variable geometry dual braking systems which are conventionally mounted on the rear wheel of a two-wheeler vehicle. Further, the variable adjuster which is employed in assembly also provides a larger range of adjustment which is not available in the existing dual braking systems. The assembly also includes a roller and cam profile which allows the spring to be oriented in a pre-defined angle to ensure simultaneous braking of the front and rear wheel of a two-wheeler vehicle which largely contributes to the decrease in the wear and tear of the front brake and rear brake which is typically experienced in the conventional variable geometry dual braking systems.
Brief description of the drawings:
[0009] The foregoing and other features of embodiments will become more apparent from the following detailed description of embodiments when read in conjunction with the accompanying drawings. In the drawings, like reference numerals refer to like elements.
[0010] FIG 1 illustrates a front view of a variable geometry dual braking system with a variable adjuster mechanism
[0011] FIG 2 illustrates a rear view of a variable geometry dual braking system with a variable adjuster mechanism.
Detailed description of the invention:
[0012] Reference will now be made in detail to the description of the present subject matter, one or more examples of which are shown in figures. Each example is provided to explain the subject matter and not a limitation. Various changes and modifications obvious to one skilled in the art to which the invention pertains are deemed to be within the spirit, scope and contemplation of the invention.
[0013] The present invention provides an assembly for a variable geometry dual braking system with a variable adjuster mechanism. The assembly comprises at least one variable adjuster for maintaining a pre-defined angular orientation of the variable geometry dual braking system to ensure optimum operation of the variable geometry dual braking system under all drive cycles. Further, the assembly also includes a spring, whose angular orientation ensures simultaneous engagement of the front brake and rear brake upon application of a minimum braking force in a two-wheeler vehicle. The spring also ensures optimal and simultaneous braking of the front and rear brakes, thereby reducing wear and tear in the brakes and eliminating the utility of a physical lever to provide additional braking force at the front brake of a two-wheeler vehicle.
[0014] FIG 1 illustrates a front view of a variable geometry dual braking system with a variable adjuster mechanism. The assembly (100) comprises an improvement over the existing variable geometry braking systems by providing a variable adjuster (101) which may be adjusted to maintain a pre-defined angular orientation of the variable geometry dual braking system for a two-wheeler vehicle to ensure optimum operation of the variable geometry dual braking system under all drive cycles. In one embodiment of the present invention, the variable adjuster (101) may be a simple screw which is threaded such that the threading action causes a geometrical change in the assembly (100) leading to change in the pre-defined angular orientation.
[0015] The assembly (100) also includes a spring (102) which is disposed between a linkage comprising the roller (103) and a linkage (104) comprising the variable adjuster (101), wherein the angular orientation of the spring (102) with respect to the assembly (100) ensures simultaneous engagement of the front brake and rear brake upon application of a minimum braking force in a two-wheeler vehicle. In one embodiment, the spring (102) may be disposed vertically with respect to the orientation of the assembly (100) thereby allowing uniform and simultaneous engagement of the front and rear brakes as per the braking force applied by a user.
[0016] Additionally, due to uniform braking in both the front and rear brakes, the frictional erosion of the brakes is largely reduced, further contributing to the longevity of the assembly (100). Since the angular orientation of the spring (102) ensures simultaneous engagement of the front brake and rear brake of a two-wheeler vehicle, the utility of a physical lever to provide additional braking force at the front brake of a two-wheeler vehicle may be eliminated. In another embodiment of the present invention, a spring may be employed between the assembly (100) and the linkage (104) comprising the variable adjuster (101), to secure the variable adjuster (101) to the assembly (100). This ensures that the position of the variable adjuster (101) with respect to the assembly (100) is maintained over multiple drive cycles.
[0017] FIG 2 illustrates a rear view of a variable geometry dual braking system with a variable adjuster mechanism. The variable adjuster (101) which is employed in the assembly (100) may be in the form of a screw, push button, rotating knob and so on and may be operated within a pre-defined wide threshold range.
[0018] The present invention provides a variable adjuster mechanism which is an improvement over the existing variable geometry dual braking systems. The variable adjuster (101) is provided to maintain the angular orientation of the variable geometry dual braking systems which are conventionally mounted on the rear wheel of a two-wheeler vehicle. Further, the variable adjuster (101) which is employed in assembly (100) also provides a larger range of adjustment which is not available in the existing dual braking systems. The assembly (100) also comprises a roller and cam profile which allows the spring (103) to be oriented in a pre-defined angle to ensure simultaneous braking of the front and rear wheel of a two-wheeler vehicle which largely contributes to the decrease in the wear and tear of the front brake and rear brake which is typically experienced in the conventional variable geometry dual braking systems.
[0019] While at least one exemplary embodiment has been presented in the foregoing detailed description, it should be appreciated that a vast number of variations exist.
Reference numbers:
Components Reference Numbers
Assembly 100
Variable adjuster 101
Spring 102
Linkage comprising roller 103
Linkage comprising variable adjuster 104