Claims:WE CLAIM :

1. A synchronized stopping mechanism with a dual braking system with brake lever assembly mountable on a handle bar (1) of a bicycle having conventional cable type front and rear braking system comprising :

a. a brake lever housing (3),

b. a big hollow hole (3a) on the said brake lever housing (3) into which the handle bar (1) is disposed through a nut (9a) and bolt (9b) and mounted therein,

c. a pair of small hollows holes (3b,3c) with a corresponding pair of slots (3d,3e) formed on the said brake lever housing,

d. a hole (3f) formed on the said brake lever housing (3) to dispose a brake lever (5) pivotably on said brake lever housing (3) through a hole (3f) on said brake lever housing (3) through a nut (4a), a bolt (4b) and a spring (4c),

e. a hole (3g) formed on said lever housing (3) to attach the handle bar (1) through a nut (6a) and a bolt (6b) onto the said lever housing (3),

f. an equaliser pivot (7) having a pair of slots (3d,3e) and pivotably attached to brake lever (5) using a rivet (6), and

g. a pair of brake cables (2a,2b) attached to corresponding brakes of braking system of bicycle at one end and the other end adapted with having a stopper sleeves (8a,8b) to extend along and within an adjustable bolt assembly (9) to hook onto said slots (3d,3e), with sleeves abutting across the adjustable bolts assembly (9).

the said arrangement characterised in that when brake lever (5) is pulled the pulling force is applied to conventional braking system and also transferred to brake cables (2a,2b) through the equaliser pivot (7) and thereby distributing and applying simultaneously the pulling force onto both brakes simultaneously, which enable a dual braking operating through the brake cables (2a,2b) of the said brake lever assembly without interrupting the operation of conventional cable brake system of the bicycle.
, Description:FIELD OF INVENTION

The described invention relates to braking systems of two wheelers and more specifically to a bicycle braking system, which is a synchronized stopping mechanism for bicycles.

BACKGROUND OF THE INVENTION

The rider is in control of a bike once he is able to start and stop its motion at will, hence, the ability to quickly stop the bicycle, by a smooth application of brakes, without experiencing any forward fall or other side effect, gives the rider confidence to ride the bicycle. Bicycles are an efficient, inexpensive and environment friendly means of converting mechanical energy into another form, in order to produce self-propelled motion by virtue of two wheels being driven into movement. One of the biggest problems for a cyclist is understanding how to apply brakes in order to effectively bring the cycle to a desired stop without experiencing any nasty falls or overshooting the destination in sudden circumstances. The varied terrains, result in uphill and downhill situations where the cyclists might be confused as to which brake left or right- must be applied in order to skilfully manoeuvre through the ride. Also the riders commuting in traffic face the problem of sudden stops, and hurdles, and speed bumpers causing them to lose their balance at times or subjecting them to more strain by requiring them to pull hard on both brake levers of the bicycle handlebar. Cyclists also face a situation called “brake bite” when the application of the front brake stops the front feel and causes the rider to topple over the front. These scenarios put the riders in dangerous situations, causing them to abstain from cycling.

Methods to simultaneously apply both the front and rear brake have been researched and materialized. These generally involve the usage of electrical application of brakes as in the case of motorized transport. Or modification of existing brake levers to accommodate two cables to connect with the front and rear brake sets. Also these brakes have a fixed ratio of application of front and rear that cannot be adjusted at will.

The usage of all these types of available braking systems are either too expensive for application in non-motorized bicycles, or necessitate major modifications to existing components, complicating the overall process. Thus, present systems are inadequate or are of little value for usage in the industry that actually caters to the major bicycle purchasers.

OBJECTS OF INVENTION

The object of the invention relates to the means for simultaneous braking to reduce time taken to stop the bicycle when applying brakes. It also improves the control while applying brakes when compared to conventional brakes thus improving the safety also.

Cyclists are confronted with problems due to inefficient braking systems causing the cyclists to either forgo the sport completely or limit themselves from riding. The object is to create a dual brake system. The Dual brake system is designed so as to provide a smooth braking experience, by simultaneously actuating both front and rear brake while applying force only on one brake lever on the handle bar. The core of the system is encompassed in a brake lever assembly independent of the other bike components. The simultaneous application of brakes is optimized to ensure a better ride quality.

DETAILED DESCRIPTION OF THE INVENTION WITH DRAWINGS

The present disclosure will become better understood from the detailed description given herein below and the accompanying drawings which are given by the way of illustration only and thus are not intending to limit the present disclosure and wherein:

Fig 1 illustrates the top view of the brake lever assembly mounted on the handlebar. The Brake lever housing, brake lever can be manufactured from a material consisting of carbon steels, elastomers, brass, bronze, aluminium or any alloys. Alternatively, the brake lever housing and the brake lever can be formed from a composite material, such as Kevlar or carbon fibre that provides for significant strength. The brake lever assembly can be mounted on the handlebar or any other location convenient enough to be able to actuate both cables with ease without resulting in any more tension on the cables.

Fig 2 illustrates the cross section of the top view of the brake lever assembly.

Fig 3 illustrates an assembly view of the brake lever assembly

Fig 4 illustrates an assembly view showing the cross section showcasing the internal mechanism

Fig 5: Shows the disctribution of force applied to the brake lever to the brake cables via equalizer pivot. The force applied on the brake lever is transferred to the equaliser pivot which distributes the forces on to the brake cables in the set proportion and makes sure both the cables are applied simultaneously

Fig 6 illustrates the assembly of the brake lever assembly

Fig 7 illustrates the exploded view of the brake lever assembly

Referance numerals

1. Handlebar
2a, 2b. Brake cables
3. Brake lever housing
3a. Hole for mounting the handlebar
3b. Hollow for taking the brake cable(2a) inside
3c. Hollow for taking the brake cable(2b) inside
3d. Slot for taking the brake cable(2a) inside
3e. Slot for taking the brake cable(2b) inside
3f. Hole for tightening the brake lever()
3g. Hole for tightening handlebar
4a. Nut for tightening the brake lever
4b. Bolt for tightening the brake lever
4c. Spring loaded for the brake lever to retract
5. Brake lever
6. Rivet
7. Equaliser pivot
8a, 8b sleeves for the brake levers
9. Brake adjuster bolt assembly

DESCRIPTION OF INVENTION

In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the disclosed embodiments. It will be apparent, however that one or more embodiments may be arrived at without these specific details. In other instances, well-known structures and parts of components are schematically shown in order to simplify the drawing.

The disclosure provides a bicycle braking system capable of preventing the suffering situation of “brake bite”.

In general, a bicycle is a transportation vehicle that has a light body relatively easy to ride, such that a rider can ride flexibly responding to different road conditions. But same light bicycles can be a cause of “brake bite” thereby harming the rider in adverse condition.

The aim and achievement of this invention is to create a dual brake system in an existing prior art conventional bicycle system and avoid “brake bite” situation.

The invention consists of a brake lever assembly (Fig: 1) which can be mounted on a handlebar(1) to which two brake cables(2a, 2b) can be connected. The other end of the brake cables are connected to the respective brake sets.

The brake lever housing (3) consists of big hollow (3a) in which the handlebar is mounted using a nut(9a) and bolt(9b)and two small hollows(3b, 3c) and two slots(3d, 3e) through which brake cables(2a, 2b) are pulled in. The brake lever housing(3) has hole (3f) to tighten brake lever(5) using the nut(4a), bolt (4b)and spring(4c) and hole(3g) to tighten the handlebar(1) with nut(6a) and bolt(6b)

Inside the brake lever housing(3), the brake cables(2a, 2b) are pulled in through the adjuster bolts assembly(9) and are hooked to two slots of an equaliser pivot(7) which is pivoted to the brake lever(5) using rivet(6), screw or any other similar mechanism. The sleeves(8a, 8b) of the brake cables are stopped at the adjuster bolt assembly and the cables go in. The brake lever (5) is pivoted on the brake lever housing(3) with a nut(4a) and a bolt(4b) also loaded with a spring(4c) to make sure the retraction while releasing the lever.

When the brake lever is pulled the force is transferred to the brake cables(2a, 2b) via equaliser pivot(7). The equaliser pivot(7) distributes the pulling force in the set ratios to the brake cables(2a, 2b) and makes sure both the brakes are applied simultaneously.

This entre closed set up is to actuate to cables with a single lever. Also the housing protects the inside mechanism from external damages. This brake lever is compact and light weight suited for usage on any cycle.

The advantages of the invention are many :

The brake lever assembly is mounted in a housing made from a material consisting of carbon steels, Hard polymers, brass, bronze, aluminum or something other than carbon steels, hard polymers, brass, bronze, aluminum.

The aforementioned brake lever assembly can be assembled on bicycles with Caliper brakes, V brakes, disc brakes and any other set of brakes that may be using cables as a means of mechanically applying brakes in their modes of transport.

Cables from the brakesets connected to both the wheels are taken inside the brake lever housing and connected to a equaliser pivot which is pivoted to the brake lever. Thus the force applied on the lever is transferred to the brake cables through the equaliser pivot. The equaliser pivot is free to rotate at this pivot hence distributes the forces to the brake cables in the set ratio and makes sure the brakes are applied simultaneously.

The invention has been described as detailed above but various embodiments and variations are possible beyond the preferred embodiments disclosed in this document. All such variations and modifications as obvious to the skilled person is within the scope of this invention. The applicant intends to rely upon provisional specification and the drawings submitted along with provisional specification.

This invention uses a new brake lever assembly design which is connected with standard components available in the current market considering the bicycle industry.

Since our invention is connected with standard components available in the current market it can replace the brake levers of any cable actuated bicycle braking system where braking two wheels simultaneously gives a better result.

This invention uses less number of parts compared to the patents mentioned in the prior arts it reduces complexity, cost and makes it easier to assemble.

The invention addresses the technical problem of the prior art and the invention discloses an unique configuration of arrangement of second brake arrangement alongwith the known conventional brake system and this dual-braking system configuration makes it possible to prevent a bicycle from “brake bite” and protecting the rider from injury. It is possible to safely restrain a bicycle without complicating the arrangement and ensuring the second dual braking system is adaptable to be used with numerous existing convention bicycles.

A synchronized stopping mechanism with a dual braking system with brake lever assembly mountable on a handle bar (1) of a bicycle having conventional cable type front and rear braking system comprising of a brake lever housing (3). There is a big hollow hole (3a) formed on the said brake lever housing (3) into which the handle bar (1) is disposed through a nut (9a) and bolt (9b) and mounted therein. A pair of small hollows holes (3b,3c) with a corresponding pair of slots (3d,3e) is formed on the said brake lever housing. Further a hole (3f) is formed on the said brake lever housing (3) to dispose a brake lever (5) pivotably on said brake lever housing (3) through a hole (3f) on said brake lever housing (3) through a nut (4a), a bolt (4b) and a spring (4c). And also another hole (3g) is formed on said lever housing (3) to attach the handle bar (1) through a nut (6a) and a bolt (6b) onto the said lever housing (3). An equaliser pivot (7) having a pair of slots (3d,3e) and is pivotably attached to brake lever (5) using a rivet (6). And a pair of brake cables (2a,2b) is attached to corresponding brakes of braking system of bicycle at one end and the other end adapted with having a stopper sleeves (8a,8b) to extend along and within an adjustable bolt assembly (9) to hook onto said slots (3d,3e), with sleeves abutting across the adjustable bolts assembly (9). The said arrangement as per the invention is characterised in that when brake lever (5) is pulled the pulling force is applied to conventional braking system and also transferred to brake cables (2a,2b) through the equaliser pivot (7) and thereby distributing and applying simultaneously the pulling force onto both brakes simultaneously, which enable a dual braking operating through the brake cables (2a,2b) of the said brake lever assembly without interrupting the operation of conventional cable brake system of the bicycle.

Therefore any accidental or unconscious erroneous braking force even if applied by the rider of bicycle, there will be no cause for “brake bite” to occur and rider is safe. It will be apparent to those skilled in the art that various modifications and variations can be made to the present disclosure of. It is intended that the specification and drawings be considered only as exemplary embodiments only with a scope of disclosure being indicated in the claims of this applications.