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 discloses a device for combined braking system. The invention particularly relates to a miniature device for wedge braking system using a single wedge for the two/three wheeler application, wherein the device provides effective braking system at less cost.
Background of the invention
[0003] Currently there are many developments happening in the field of automobile for various braking system in order to achieve reliable braking. Particularly in the field of combined braking system, (or linked braking system) several braking system have been developed, in which the brakes of the two wheeler are combined together. Such that when the two wheeler rider depresses one of the brake lever, the system applies both front and rear brakes.
[0004] The existing combined braking systems have very complex design and mechanism, thus increasing the overall cost of the vehicle. For the vehicles having low manufacturing cost where such complex combined braking system are installed, there is a steep increase in the cost. Also currently, there are no combined braking devices and mechanisms which can be installed on the already existing vehicles. It is also very difficult task to install such system on existing vehicles because the positioning of the device in the predesigned vehicle becomes very difficult and the complex designs make it more problematic to modify the existing vehicles.
[0005] Hence, there is a need for providing a device for combined braking system which has a simple design and mechanism. The simple device should be able to fit on any existing vehicles without major modifications of existing vehicles and provide effective combined braking. Also the device should be very cost effective, which minimizes the overall vehicle manufacturing cost and increases the affordability for the users to buy new vehicles.
Summary of the invention:
[0006] The present invention overcomes the drawbacks of the prior art by disclosing a miniature device for wedge braking system using a single wedge, wherein the device comprises of a first slider, a second slider, a sliding wedge, a floating slider and a housing with plurality of sliding grooves. The first slider has a first slot, wherein the end fitment of a rear brake lever cable is mounted and it has internal groves wherein the sliding wedge is constrained to move horizontally. The second slider with an external angled surface has a second slot, wherein the end fitment of a rear wheel brake cable is mounted. The sliding wedge with an external angled surface is fitted on to the internal grooves of the first slider, wherein the sliding wedge is constrained to move in horizontal direction. The floating slider with an internal angled surface has a third slot, wherein the end fitment of a front wheel brake cable is mounted into the third slot. The internal angled surfaced of the floating slider interacts with the sliding wedge to control the movement of the floating slider. The external angle of the second slider also interacts with sliding wedge. The housing with plurality of sliding grooves, wherein the first slider, the second slider and the floating slider are fitted on the grooves. The sliding wedge is locked to move in horizontal direction. The first slider, second slider and floating slider are locked to move in vertical direction onto the grooves provided in the housing.
[0007] The present invention provides a simple solution to the existing problem of complex design and mechanism of the device in combined braking systems. The simple device can be fitted on any existing vehicles without major modifications and also provide effective combined braking. The device is very cost effective, which further minimizes the overall vehicle manufacturing cost and increases the affordability for the users to buy new vehicles.
[0008] The invention provides a miniature wedge braking system for a two wheeler application, wherein the device actuates the front and the rear brakes of a vehicle when the driver/rider depresses rear brake lever of the vehicle. The device provides efficient braking with anti-skid and also ensures the safe braking by uniformly distributing the braking force in the vehicle. In the event of rear brake fail, the device actuates the fail safe mechanism and prevents the skidding of the vehicle.
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 the exploded view of miniature device using single wedge for wedge braking system.
[0011] FIG 2 illustrates the various components of the miniature device.
[0012] FIG 3(a), 3(b) and 3(c) illustrates the positioning of the device onto the brake lever of the vehicle.
Detailed description of the invention:
[0013] 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.
[0014] The present invention provides a single wedge braking system for a two wheeler application and the device is configured on the drum-drum braking and drum-disc braking configurations. The device actuates the front and the rear brakes of a vehicle when the driver/rider depresses the rear brake lever of the vehicle. The device provides efficient braking with anti-skid and also ensures the uniform distribution of the braking force. In the event of rear brake fail the device actuates the fail safe mechanism and prevents the skidding of the vehicle.
[0015] The present invention discloses miniature device for wedge braking system using a single wedge, wherein the device comprises of a first slider, a second slider, a sliding wedge, a floating slider and a housing with plurality of sliding grooves. The first slider has a first slot, wherein the end fitment of a rear brake lever cable is mounted. The second slider with an external angled surface has a second slot, wherein the end fitment of a rear wheel brake cable is mounted. The sliding wedge is provided with an external angled surface. The floating slider with an internal angled surface has a third slot, wherein the end fitment of a front wheel brake cable is mounted into the third slot. The internal angled surfaced of the floating slider interacts with the sliding wedge to control the movement of the floating slider. The housing has plurality of sliding grooves, wherein the first slider, the second slider, and the floating slider are fitted on the grooves. The sliding wedge is locked to move in horizontal direction and the other sliders are locked to move in vertical direction onto the grooves provided in the housing.
[0016] FIG 1 illustrates the exploded view of miniature device using single wedge for wedge braking system. The device (100) has simple design and mechanism for efficient and safe braking. The device (100) comprises a first slider (101) having an internal grooves and a first slot (102), wherein the end fitment of a rear brake lever cable is mounted in the first slot (102). The device (100) includes a second slider (103) with an external angled surface having a second slot (109) (shown in fig 2), wherein the end fitment of a rear wheel brake cable is mounted. The device (100) further comprises of a sliding wedge (105) with an external angled surface, wherein the sliding wedge (105) is fitted on to the internal grooves of the first slider (101) and constrained to move in horizontal direction. The floating slider (104) with an internal angled surface has a third slot (108). The end fitment of a front wheel brake cable is mounted into the third slot (108), wherein the internal angled surface of the floating slider (104) interacts with the sliding wedge (105). Also the external angled surface of the second slider interacts with the sliding wedges, this combined reaction controls the movement of the floating slider (104). The device (100) also comprises a housing (107) having plurality of sliding grooves (106), wherein the first slider (101), the second slider (103) and the floating slider (104) are fitted on the grooves ((106) and (112)). The sliding wedge (105) is locked to move in horizontal direction and all the other sliders are locked to move in vertical direction onto the grooves ((106) and (112)) provided in the housing (107).
[0017] In one of the embodiment of present invention during the event when the rear brake lever (301) is depressed, the second slider (103) pushes the sliding wedge (105) horizontally outwards during a downward movement of the second slider (103), which is resulted by the reactive pulling force from the rear wheel brake. Further, the floating slider (104) pushes the sliding wedge (105) the horizontally inwards during a downward movement of the floating slider (104), which is resulted by the reactive pulling force from the front wheel brake. As long as the outward horizontal force is greater than inward force, the mechanism engages the floating slider (104), and actuates the rear wheel brake and front wheel brake.
[0018] In another example during the event of rear brake fail the floating slider (104) pushes the sliding wedge (105) horizontally inwards, this is due to the absence of downward reactive force from the rear wheel brake and as the inward horizontal force is greater than outward horizontal force, the second slider (103) is lifted vertically upward, thereby not engaging the floating slider (104) and the braking is not transferred to the front wheel brake. This acts as an indication that the rear brake is failed and also prevents sudden skidding of the vehicle.
[0019] FIG 2 illustrates the various components of the miniature device.
[0020] The device (100) in the present invention is configured to fit on any position of the vehicle such as on the handle of the vehicle but not limited to any specific position. The device (100) uses very small quantity of space on the vehicle and it can be fitted on any position in the vehicle. Hence the device (100) is very cost effective. Also, the device (100) may be configured to use a metal ball or a lever to engage and disengage the floating slider (104) but not limited to the sliding wedge (105).
[0021] FIG 3(a), 3(b) and 3(c) illustrates the positioning of the device onto the brake lever of the vehicle. The device (100) integrated with the brake lever of the vehicle is as shown in FIG 3(a), 3(b) and 3(c). A cable (115) from the rear wheel brake lever (301) is mounted on the first slot (102) of the first slider (101) in the device. The cable from front brake is mounted to a front brake lever of the vehicle. The cable (114) from the rear wheel brake is mounted on the second slot (109) of the second slider (103) in the device (100). Another cable (113) from the front wheel brake cable is mounted on the third slot (108) of the floating slider (104) in the device (100). The floating slider (104) is fitted onto the grove (112) provided in the housing (107). The first slider (101) and the second slider (103) are mounted on the groove (106) provided in the housing (107). The sliding wedge (105) with an external angled surface is fitted on to the internal grooves of the first slider (101).When the rear brake lever of the vehicle is depressed the mechanism of the device ensures to distribute uniform braking force to the both wheels of the vehicles at a time.
[0022] In one of the embodiment of the present invention, the device is also configured to provide a variable delay function, in which the device may be enabled to deliver a delayed braking force to the front wheel. This functionality is achieved by shifting the initial position of the floating slider to the user’s desired delay position by means of fixed support. This functionality gives a realistic feel to the rider when the rear brake is depressed and also avoids unnecessary usage of front wheel brake when it is not required.
[0023] The present invention provides a simple solution to the existing issue of complex design and mechanism of the device in combined braking systems. The simple device can be fitted on any existing vehicles without major modifications and also provide effective combined braking. The device is very cost effective, which further minimizes the overall vehicle manufacturing cost and increases the affordability for the users to buy new vehicles.
[0024] The invention provides a miniature wedge braking system for a two wheeler application, wherein the device actuates the front and the rear brakes of a vehicle when the driver/rider depresses rear brake lever of the vehicle. The device provides efficient braking with anti-skid and also ensures the safe braking by uniformly distributing the brake force in the vehicle. In the event of rear brake fail the device actuates the fail safe mechanism and prevents skidding of the vehicle.
[0025] The present invention can be fitted on any vehicle such as three wheeler but not limited to two wheeler.
[0026] 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.
, Claims:We claim:
1. A device (100) for wedge braking system using a single wedge, the device comprising:
a) a first slider (101) having an internal grooves and a first slot (102), wherein the end fitment of a rear brake lever cable (115) is mounted in the first slot (102);
b) a second slider (103) with an external angled surface having a second slot (109), wherein the end fitment of a rear wheel brake cable (114) is mounted in the second slot (109);
c) a sliding wedge (105) with an external angled surface is fitted on to the internal grooves of the first slider (101), wherein the sliding wedge is constrained to move in horizontal direction, wherein the external angle of the second slider (103) interacts with the sliding wedge (105);
d) a floating slider (104) with an internal angled surface having a third slot (108), wherein the end fitment of a front wheel brake cable (113) is mounted in the third slot (108),
wherein the internal angled surfaced of the floating slider (104) interacts with the sliding wedge (105) to control the movement of the floating slider (104);
e) a housing (107) having plurality of sliding grooves ((106) and (112)), wherein the first slider (101), the second slider (103), the floating slider (104) are fitted on the plurality of grooves (106) and (112), wherein the sliding wedge (105) is locked to move in horizontal direction, and the first slider (101), the second slider (103) and the floating slider (104) are locked to move in vertical direction onto the grooves ((106) and (112)).

2. The device (100) as claimed in claim 1, wherein the second slider (103) pushes the sliding wedge (105) horizontally outwards during a downward movement of the second slider (103) and the floating slider (104) pushes the sliding wedge (105) horizontally inwards during a downward movement of the floating slider (104) which results in outward horizontal force greater than inward force and the resultant outward movement of sliding wedge is generated when the rear brake lever (301) is depressed, thereby locking the floating slider (104) , and actuating a front wheel brake and rear wheel brake.

3. The device (100) as claimed in claim 1, wherein the floating slider (104) pushes the sliding wedge (105) horizontally inwards during the event of brake fail and results in vertically lifting the second slider (103), thereby the floating slider (104) is not engaged, and the braking is not transferred to the front wheel brake.

4. The device (100) as claimed in claim 1, wherein the device is configured to fit on any position of the vehicle.

5. The device (100) as claimed in claim 1, wherein the device is configured to use a metal ball or a lever to engage and disengage the floating slider (104) but not limited to the sliding wedge (105).

6. The device (100) as claimed in claim 1, wherein the device (100) is configured on the drum-drum braking configuration and drum-disc braking configuration systems.

7. The device (100) as claimed in claim 1, wherein the device (100) is fitted on any of the vehicles but not limited to the two wheelers.

8. The device (100) as claimed in claim 1, wherein the device is configured to various brake force distribution ratios for different vehicles by varying the surfaced angles of the sliding wedge, second slider and floating slider.

9. The device (100) as claimed in claim 1, wherein the device is configured to deliver a variable delay function in which a delayed braking force is provided to the front wheel of the vehicle.