Brake System

Field of the Invention:

This invention lies in the field of controls, specifically hand control mechanisms for two wheeler braking.

Background of the Invention:

Currently, the standard two wheeler has dedicated foot pedal control for braking apart from the hand lever control. These hand lever brakes and foot pedal brakes are well known in the art in the form of applying brake forces to front and rear brakes, whereupon the two wheeler rider can slow the vehicle's speed and also change gears. These foot pedals may be separate pedals, or they may be single pedal that encompasses both functions (braking and shifting gears).

However in all the cases of which we are aware, the foot pedal controlling the braking action is done by brake rods and the hand levers controlling the braking action is performed by brake cables.

For a single speed transmission vehicle, where there is no need or provision for shifting of gears, the braking controls are provided in the hand levers on the handle bar of the vehicle. In this particular situation, the hand lever performs the braking action through the brake cables running towards both front and rear brakes. Brake cables are generally flexible component, which can be bent to provide flexibility whenever required. Since, one of the brake cables has to reach the rear brake panel, it has to undergo lots of bend to make its way to the rear brake panel, whereby the braking efficiency is reduced.

Brake cable is poor in transmitting the brake force for the above reasons mentioned there and on the contrary the brake rods are rigid in nature and henceforth cannot be used when flexibility is required.
Thus, there is a long felt but unmet need in the art for a brake system that merges the brake cable and brake rod advantages into one unit that can be easily affixed to the vehicle as per its layout.

Summary of the Invention:

An object of the present invention is to provide a brake system for a single transmission vehicle, wherein both brake cable and brake rod has been utilized to transfer the brake load.

Another object of the present invention, is to provide a brake system which transfers the brake load efficiently through both brake cable and brake rod.

Yet another object of the present invention is to provide a brake system which is cost effective.

Further scope of applicability of the present invention will become apparent from the detailed description given hereinafter. However, it should be understood that the detailed description and specific examples, while indicating preferred embodiments of the invention, are given by way of illustration only, since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art from this detailed description.

Brief Description of the Invention:

The present invention will become more fully understood from the detailed description given herein below and the accompanying drawings which are given by way of illustration only, and thus are not limitative of the present invention, and wherein

FIG. 1 is a conventional scooter type motorcycle.

FIG. 2 shows brake system according to one of the embodiment of the present invention.

FIG. 3 shows brake system according to another embodiment of the present invention.

Detailed Description of the Invention:

For the purpose of illustration a vehicle of the general type is illustrated for the application. Referring to figure 1, a scooter body frame comprises a head pipe 101, at least a tube extending downwardly and then extends almost horizontally (not shown in the figure) and then at the posterior position extends upwards (not shown in the figure) and further backwardly and horizontally. The rear most part of the said tube is opened to the atmosphere. A front wheel 102 is carried through the intermediary of a front fork that is rotatably mounted within the head pipe 101. A rear wheel 103 is carried on the rear end of a rear fork that is swingably pivoted on the rearward lower position of the vehicle body frame. A seat 104 is disposed above the shock absorber. Forwardly of the seat 104, a fuel tank 105 is mounted over the mono tube. Behind the fuel tank 105, a step through space 106 is provided between the fuel tank 105 and the seat 104, A two-stroke cycle engine 107 is mounted under a footboard 106 and behind the front wheel. The exhaust pipe extends from the engine to the rear portion of the vehicle.

Referring to figure 2 and according to one embodiment of the present invention, the single speed transmission vehicle, which is a step thru vehicle has front and rear brakes 203. The said front brake, is applied by the motion of a flexible cable which is connected from one of the hand operated brake lever to the front brake panel. For the rear brake 203, a brake cable 202 is connected to one hand operated brake lever 201, which extends from the head pipe 204 of the vehicle along the downtube 205. A bracket 206 is provided just at the bending point of the downtube 205, which further extends below the floor board. The said bracket 206 is use to connect the brake cable 205 and a brake rod 207. The said brake rod 207 further from that point 206 extends backwards towards the rear brake panel 203. In this way, the overall efficiency of the system increases.

Referring to figure 3 and according to another embodiment of the present invention, the single speed transmission vehicle, which is a step thru vehicle has front and rear brakes. The said front brake, is applied by the motion of a flexible cable which is connected from one of the hand operated brake lever to the front brake panel. For the rear brake 301, a brake cable 302 is connected to one hand operated brake lever 303, which extends from the head pipe 304 of the vehicle along the downtube 305. A bracket 306 is provided on the downtube 305 portion which extends below the floor board 307. The said bracket 306 is use to connect the brake cable 302 and a brake rod 308. The said brake rod further from that point extends backwards towards the rear brake panel 301. In this way, the overall efficiency of the system increases.

The connecting said brackets in both the embodiments can be varied for any shape, which renders it more efficient by person skilled in the art.

In another embodiment of the present invention, a system is provided for efficient force transmission which comprises a first cable connected from one hand operated lever to desired destination, the said first cable gets actuated when the said one hand operated lever is depressed; a bracket provided on downtube frame of the vehicle; a second cable connected between second hand operated lever and the said bracket; and an elongated horizontal rod connected between the said bracket and a desired destination.

The invention being thus described, it will be obvious that the same may be varied in many ways. Such variations are not to be regarded as a departure from the spirit and scope of the invention, and all such modifications as would be obvious to one skilled in the art are intended to be included within the scope of the claims.

We claim:

1. A brake system for a single speed transmission vehicle comprising:

at least two hand operated lever secured to the handle bars;

a first brake cable connected between one hand operated lever and the front brake panel, said first cable causing the front brake to be actuated when the said one hand operated lever is depressed;

a bracket provided on downtube frame of the vehicle;

a second brake cable connected between second hand operated lever and the said bracket; and
an elongated horizontal brake rod connected between the said bracket and the rear brake panel;

wherein rear brake is actuated by depressing the said second hand operated lever, and the rear brake force is transferred to the rear brake panel through the second brake cable and said elongated brake rod.

2. The brake system as claimed in claim 1, wherein the said bracket is preferably mounted at the bending portion of the downtube extending downwards form the head pipe and further extending horizontal from the bending portion towards the rear of the vehicle.

3. The brake system as claimed in claim 1, wherein the said bracket is preferably mounted on the horizontal potion of the downtube.

4. The brake system as claimed in claim 1, wherein the said bracket connected the brake cable and the brake rod.

5. A brake system comprising:

at least two hand operated lever secured to the handle bars;

a first brake cable connected between one hand operated lever and the front brake panel, said first cable causing the front brake to be actuated when the said one hand operated lever is depressed;

a bracket provided on downtube frame of the vehicle;

a second brake cable connected between second hand operated lever and the said bracket; and

an elongated horizontal brake rod connected between the said bracket and the rear brake panel;

wherein rear brake is actuated by depressing the said second hand operated lever, and the rear brake force is transferred to the rear brake panel through the second brake cable and said elongated brake rod.

6. A brake system as substantially shown and described in the specification.