Claims:We Claim:

1. A system for combination braking comprising:

a rear brake cam lever (101) positioned near to the rear wheel, designed geometrically to receive a high efficiency cable (102) hooked to a uniquely positioned hole in the lever (101) that helps to actuate brake on the front wheel after receiving braking force from the rear brake pedal (104), wherein due to this design a differential pull force is imparted to the front brake system;

a high efficiency braking cable (102) to actuate the front wheel brake cam lever (105) wherein the cable (102) comprises an inner wire housed in an outer conduit lined with high performance polymer material which contributes to the efficiency of the braking system.

2. The system as claimed in claim 1, wherein the rear brake cam lever (101) further comprises:

- a high efficiency cable mounting point(301);
- a rear brake cam shaft mounting point (302); and
- a link mounting point (303).

3. The system as claimed in claim 2, wherein the link mounting point (303) helps in connecting the rear brake pedal (104) with the rear brake cam lever (101), wherein the high efficiency cable mounting point (301) helps in connecting the rear brake cam lever (101) with the front wheel brake cam lever (105).

4. The system as claimed in claim 1, wherein when pressure is applied to the rear brake pedal (104) a force actuates the rear brake cam lever (101).

5. The system as claimed in claim 4, wherein the brake cam lever (101) imparts the required braking force to the rear wheel through the brake system of the vehicle.

6. The system as claimed in claim 1, wherein a high efficiency brake cable (102) connects both the rear brake cam lever (101) and front brake cam lever (105) in a unique design.

7. The system as claimed in claim 6, wherein the other end of the cable (102) is hooked to a hole which is uniquely positioned.

8. A method of combination braking system with a rear brake cam lever for a motor vehicle, the method comprising the steps of:

actuating the rear brake cam lever (402) positioned near the rear wheel with the help of the rear brake pedal (401), which delivers the braking force to the rear wheel;

the cable (404) connecting the rear brake cam lever (402) as well as front brake cam lever (405) imparts necessary braking force to the front wheel (406).
, 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 relates to a combined braking system for a motor vehicle with a rear brake cam lever. More particularly, both front wheel and rear wheel will experience braking force by application of foot pedal, in a unique way balancing the braking forces respectively to the rear and front wheel. This translates in reducing the stopping distance of vehicle and increasing safety of the riders.
Background of the invention
[0003] Majority of the present two wheelers in the market operates a braking system where in a handle bar lever operates the braking force on the front wheel, and a foot pedal for the rear wheel. The present braking system depends upon independent lever operations at the handle bar and foot pedal thereby inducing different braking forces at the wheels. To overcome the uneven, imbalanced braking forces, many designs are proposed to address the drawback.
[0004] For instance, the US Patent US7188911 B2 titled, “Brake device for a two-wheeled motor vehicle, and method of using same”, discloses braking device for a motorcycle, in which front wheel braking means is operated in conjunction with a braking operation on a rear wheel. This eliminates a rapid change in front/rear braking force distribution at the time of a rear wheel braking operation so as to consistently allow a rider to feel a smooth braking operation. However, this mechanism uses a hydraulic braking system which may efficiently transmit the braking force, but it has its own demerits like leaking of braking fluid, etc. This somehow increases the complications in the system.
[0005] Another US Patent US20060170280 A1 titled, “Brake system and method for a two-wheeled motor vehicle”, discloses a system capable of synchronizing a braking operation of either a front or rear wheel with a braking operation of the other wheel. However, system includes a pair of hydraulic pressure modulators for supplying hydraulic pressure.
[0006] The US Patent US20140015221 A1 titled, “Straddle type vehicle interlocking brake system and straddle type vehicle”, discloses rear brake mechanism with the help of cables. Here, mainly the equilizer helps in pulling the rear or front brake after actuating. Here, braking force division is highly complicated.
[0007] Hence, there exists a need for a simple braking mechanism that overcomes the drawbacks in the prior art and enhance the safety of the riders.
Summary of the Invention:
[0008] The present invention overcomes the drawbacks in the prior art and provides a combination braking system with a rear brake cam lever for a motor vehicle. The system provides an easy and simple way of applying braking force at a predetermined ratio to the front and rear wheel.
[0009] The braking system comprises a rear brake cam lever positioned near to the rear wheel which is actuated by a foot pedal to apply brake on the rear wheel.
[0010] A high efficiency cable which connects both the front and rear brake cam lever, delivers braking force to front brake cam lever when the foot pedal is pressed by rider.
[0011] An high efficiency cable comprises with an inner wire which slides in a outer conduit lined with high performance polymer material which imparts efficiency by reducing friction during cable operation, the liner material is so formulated to optimize the efficiency.
[0012] The braking system improves the stopping distance well within the specified norms of the vehicle safety standards. This generally provides extra protection for the riders of vehicles.
[0013] The braking system improves the vehicle stability by reducing the risk of wheel skidding.
[0014] The braking system improves the safety of the riders in panic situations by stopping the vehicle at lower distance and distribution of braking loads.
[0015] Thus, the invention provides a simple way of applying braking force to both the wheels by operating a foot pedal. The application of braking force, is due to the position of rear brake cam lever which connects both the front and rear wheel.
Brief description of the drawings:
[0016] The foregoing and other features of embodiment will become more apparent from the following detailed description of embodiment when read in conjunction with the accompanying drawings. In the drawings, like reference numerals refer to like elements.
[0017] FIG 1 illustrates an exemplary representation of components of rear brake assembly system.
[0018] FIG 2 illustrates an embodiment of the system when pressure is applied to the brake pedal.
[0019] FIG 3 illustrates an exemplary representation of the front view of the rear brake cam lever.
[0020] FIG 4 illustrates the method by which the combined braking system works.
Detailed description of the invention:
[0021] In the following detailed description, a reference is made to the accompanying drawings those form a part hereof, and in which the specific embodiments that may be used are shown by way of illustration. These embodiments are described in sufficient detail to enable those skilled in the art to practice the embodiments and it is to be understood that the logical, mechanical and other changes may be made without departing from the scope of the embodiments. The following detailed description is, therefore, not to be taken in a limiting sense.
[0022] The present disclosure relates generally to a braking system, particularly to a combination braking system with a rear brake cam lever for a motor vehiclethat enables linkage between the front and rear brakes to help attain a safer braking ratio under all circumstances. In an aspect, the present disclosure provides a mechanical linkage between front and the rear brakes of a two-wheeler vehicle, wherein the linkage can be installed without removing any component of existing braking systems/architectures.
[0023] Here, the linkage can enable automatic application of brakes on a front brake when brake is applied on a rear brake. The current front brake system remains unchanged. When the handle brake is applied, the front brake cam lever gets actuated and by this mechanism the front wheel only experience the braking force.
[0024] FIG 1 illustrates an exemplary representation of the components of the rear brake cam lever combined braking system. The system consists of brake pedal (104), rear brake cam lever (101), a link (103) which actuate rear brake cam lever (101), when force is applied on brake pedal (104). In addition to this, a high efficiency cable (102) connects the rear brake cam lever (101) and the front brake cam lever (105). As shown in the figure, the front right hand lever (106) actuates the front brake cam lever (105).
[0025] FIG 2 illustrates an embodiment of the present invention, which depicts the complete braking mechanism. Here, when an effort is applied on the brake pedal (204), link (203) operates the rear brake cam lever (201) pulls the front brake cam lever (205) through a high efficiency cable (202) .
[0026] FIG 3 illustrates the representation of the front view of the related rear brake cam lever (101). The rear brake cam lever (101) mainly has three mounting points, the first high efficiency cable mounting point (301), second the rear brake cam shaft mounting point (302) and the link mounting point (303).
[0027] The link (103) and high efficiency braking cable (102) are connected to the rear brake cam lever (101).The link mounting point (303) helps in connecting the rear brake pedal (104) with the rear brake cam lever (101).
[0028] The high efficiency cable mounting point (301) helps in connecting the rear brake cam lever (101) with the front brake cam lever (105), through the high efficiency cable (102).
[0029] An effort/force on the rear brake pedal (104) triggers the rear brake cam lever (101) which pulls the high efficiency cable (102) thereby actuating the front brake cam lever (105)
[0030] Thus, cable (102) connects both the rear brake cam lever (101) and front brake cam lever (105) in a unique design.
[0031] The high efficiency cable (102) consists of a inner wire housed in a conduit. The conduit is lined with a high performance polymer which contributes to the efficiency of the braking system.
[0032] The rear brake cam lever (101) is uniquely designed so as to not only operate the rear drum, but also impart the braking force to the front drum/disc through the high efficiency cable (102).
[0033] Therefore, this embodiment of invention actuates both the rear and front brake drum/disc in such a way to enhance the stopping distance as well to improve and improves the safety of the riders.
[0034] The combined braking system takes into consideration the variation of road surfaces that is ‘µ’ (Coefficient of friction) in the design calculations.
[0035] Thus, this embodiment of invention achieves the purpose of reducing the stop distance as well as enhancing the rider safety through the unique design of “Combination brake system”.
[0036] FIG 4 illustrates the flow chart of the braking system. The system works by pressing the rear brake pedal (401) which actuates the rear brake cam lever (402) thereby imparting the necessary braking force to the rear wheel (403) simultaneously the high efficiency brake cable (404) connecting the front brake cam lever (405) anddelivers the braking force to the front wheel (406).
[0037] Thus, this embodiment of invention achieves a unique purpose of operating both the rear and front brake drum/disc enhances the stopping distance and safety of the rider.