FORM 2
THE PATENTS ACT 1970
[39 OF 1970]
&
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION
[See Section 10; rule 13] " A PEDAL ASSEMBLY FOR SADDLE TYPE VEHICLE "

FIELD OF INVENTION
The present invention relates to a pedal assembly and more particularly to a pedal assembly for saddle type vehicles.
BACKGROUND OF THE INVENTION
[0001] In the recent years, a combined braking system (hereafter referred as CBS) has become need of the two wheelers, that also contributes for the safety of a rider. In CBS both the front and rear wheel brakes are applied simultaneously or synchronously, hence it reduces stopping distance of vehicle after application of brake and in turn reduces skidding and possibility of accidents in non CBS vehicles. According to the government guidelines and as per IS 14664-2010, now it is mandatory to implement combined braking system in two wheelers below 125 CC capacity.
[0002] From past few years many developments are being carried out in CBS.
Broadly, CBS may be implemented with hand operated lever mechanism for scooters or pedal operated mechanism in motor cycles or combination of both.
[0003] In conventional CBS, the rear and front brakes are applied
simultaneously. In panic braking incidents due to simultaneous actuation of both rear and front wheel brakes, there is a possibility of wheel locking, that may lead to loss of control or skidding of a scooter or motorcycle.
[0004] The conventional CBS, includes more number of moving elements
which induces frictional force which results in reduced life of the components also causes complication in the spare parts replacement. Further, the conventional combined braking system is very complex in design and expensive.
[0005] To improve safety of the riders CBS with delay mechanism had also
been disclosed in the prior art. In CBS with a delay mechanism, on the actuation of the pedal or the lever the rear brake is applied immediately, whereas a front brake is applied after predefined delay. In conventional CBS this delay is fixed.

[0006] Many of the CBS in the prior art had reported the use of equalizer
assembly that enables the desired load distribution between front wheel and rear wheel brakes. Typically, this load distribution ratio is 60:40 between rear wheel brake and front wheel brake respectively and that is also fixed.
[0007] Although, the conventional combined braking systems have been
proved to be an advantageous, there is still a scope to improve the functionality and performance of the braking system. The provision of variable delay and variable load distribution between rear to front wheel brakes shall further improve the system performance and safety of the rider in panic braking incidences.
[0008] Hence there is a need of a pedal assembly having reduced number of
movable parts for saddle type vehicles, that ensures safety of a rider with a variable delay and variable load distribution mechanism.
OBJECTS OF THE INVENTION
[0009] The main object of the present invention is to provide a pedal assembly with variable delay and variable load distribution mechanism between front and rear wheels of saddle type vehicle.
[00010] Yet another object of the present invention is to provide the pedal assembly for saddle type vehicles with variable delay and variable load distribution mechanism that reduces frictional force required for smooth braking of wheels to improve overall efficiency.
[00011] Yet another object of the present invention is to provide the pedal assembly for saddle type vehicles with variable delay and variable load distribution mechanism to optimize the stopping distance of the vehicle.
[00012] Yet another object of the present invention is to provide the pedal assembly for saddle type vehicles with variable delay and variable load

distribution mechanism that improves performance and functionality of the braking system.
[00013] Yet another object of the present invention is to provide the pedal assembly for saddle type vehicles with variable delay and variable load distribution mechanism that is simple in construction and design.
[00014] Yet another object of the present invention is to provide the pedal assembly for saddle type vehicles with variable delay and variable load distribution mechanism with reduced number of movable parts without degrading performance.
[00015] Yet another object of the present invention is to provide the pedal assembly for saddle type vehicles with variable delay and variable load distribution mechanism that enhances safety of the vehicle as well as rider.
SUMMARY OF THE INVENTION
[00016] A pedal assembly (100) for saddle type vehicles includes a pedal
body (110) having a foot pad (110A) and a pedal lever adaptor (110B), a rear holder (160), a front holder (140), a bracket (120), a cam pin (250) that is configured to hingedly connect the rear holder (160) with the pedal lever adaptor (110B), wherein the cam pin (250) includes at least one groove (250A), a cam lever (130) that is pivotably mounted on the bracket (120) such that, a proximal edge (310) of the cam lever (130) is abutted against the groove (250A) of the cam pin (250), wherein a distal end (130B) of the cam lever (130) is fastened with the front holder (140) and a spring (150) having predefined stiffness that is configured to provide predefined delay and to keep the proximal edge (310) of the cam lever (130) abutted against the groove (250A) of the cam pin (250). The cam lever (130) is mounted at a second pivot (P2) on the bracket (120) and configured to rotate in the direction of braking force received from the cam pin (250) after completion of predefined delay on pressing of the foot pad (110A). The cam lever (130) is mounted at the second pivot (P2) by means

of a pivot pin (220A) such that the proximal edge (310) of the cam lever (130) is inclined towards the cam pin (250) and abutted against the groove (250A). According to preferred embodiment of the present invention the proximal edge (310) of the cam lever (130) is straight. According to preferred embodiment of the present invention the groove (250A) of the cam pin (250) is circumferentially circular in shape. Whereas in another embodiments of the present invention the groove (250A) of the cam pin (250) may be circumferentially oval or elliptical or convex or concave or random in shape. The spring (150) is coaxially mounted on the pivot pin (220A) at the second pivot (P2) such that a first end (150A) and a second end (150B) of the spring (150) are engaged in a cam hole (130D) of the cam lever (130) and a bracket hole (120B) of the bracket (120) respectively. The pedal assembly (100) provides variable delay and variable load distribution between a front wheel brake and a rear wheel brake of the saddle type vehicle.
BRIEF DESCRIPTION OF THE DRAWINGS
[00017] The accompanying drawings constitute a part of the description and are used to provide further understanding of the present invention. Such accompanying drawings illustrate the embodiments of the present invention which are used to describe the principles of the present invention together with the description.
[00018] Fig. 1 shows a perspective view of a pedal assembly for saddle type vehicles in a preferred embodiment of the present invention;
[00019] Fig. 2A shows a front view of the pedal assembly for saddle type vehicle in the preferred embodiment of the present invention;
[00020] Fig.2B shows a side view of the pedal assembly for saddle type vehicle in the preferred embodiment of the present invention;

[00021] Fig. 3 shows a front perspective view of a cam lever in accordance with the preferred embodiment of the present invention;
[00022] Fig. 4 shows a front perspective view of a cam pin in accordance with the preferred embodiment of the present invention; and
[00023] Fig. 4A through Fig. 4D show cross sectional view of a cam pin in accordance with the preferred and other embodiments of the present invention.
DETAILED DESCRIPTION OF THE INVENTION
[00024] As used in the description herein and throughout the claims that follow, the meaning of "a," "an," and "the" includes plural reference unless the context clearly dictates otherwise. Also, as used in the description herein, the meaning of "in" includes "in" and "on" unless the context clearly dictates otherwise.
[00025] If the specification states a component or feature "may", "can", "could", or "might" be included or have a characteristic, that particular component or feature is not required to be included or have the characteristic.
[00026] Exemplary embodiments will now be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments are shown. This disclosure may however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided so that this disclosure will be thorough and complete and will fully convey the scope of the disclosure to those of ordinary skill in the art. Moreover, all statements herein reciting embodiments of the disclosure, as well as specific examples thereof, are intended to encompass both structural and functional equivalents thereof Additionally, it is intended that such equivalents include both currently known equivalents as well as equivalents developed in the future (i.e., any elements developed that perform the same function, regardless of structure).

[00027] Various terms as used herein are shown below. To the extent a term used in a claim is not defined below, it should be given the broadest definition persons in the pertinent art have given that term as reflected in printed publications and issued patents at the time of filing.
[00028] An aspect of the present invention pertains to a pedal assembly for saddle type vehicles with variable delay and variable load distribution mechanism. Fig. 1 shows a front perspective view of a pedal assembly for saddle type vehicles for two wheeled vehicles in the preferred embodiments of the present invention. A pedal assembly (100) includes a pedal body (110), a rear holder (160), a front holder (140), a bracket (120), a cam lever (130) and a spring (150).
[00029] Fig. 2 shows a front view of a pedal assembly for saddle type vehicles in the preferred embodiments of the present invention. Referring to Fig. 2A, the pedal body (110) further includes a foot pad (110A), a pedal lever adaptor (HOB) that is operable with respect to a first pivot PI. A cam pin (250) is configured to hingedly connect the rear holder (160) with the pedal lever adaptor (110B). The cam lever (130) is pivotably mounted on the bracket (120).
[00030] Now referring to Fig. 2A, Fig. 2B and Fig. 3 collectively, the constructional features of the pedal assembly (100) is explained as follows. The rear holder (160) is connected with a rear brake rod (240). The rear holder (160) is hingedly connected with the pedal lever adaptor (HOB) with a cam pin (250) and a fastener (260). In the preferred embodiment of the present invention the fastener (260) is a nut, but in the other embodiments the fastener (260) may be circlip or any other fastening means to lock the cam pin (250).
[00031] The cam lever (130) in accordance with the preferred embodiment of the present invention having a proximal end (130A), a distal end (130B), a first pivot hole (130C), a proximal edge (310) and a distal edge (320).

[00032] The bracket (120) includes a second pivot hole (120A). The cam lever (130) is pivotably mounted on the bracket (120) at a second pivot (P2) by means of the first pivot hole (130C) and the second pivot hole (120A) that are coaxially aligned to receive a pivot pin (220A) along with the spring (150). The cam lever (130) is mounted on the bracket assembly such that the proximal edge (310) is inclined towards the cam pin (250) and abutted against the groove (250A). The distal end (130B) of the cam lever (130) is fastened with the front holder (140). The front holder (140) receives a front brake cable (230).
[00033] A spring (150) having predefined stiffness is coaxially mounted on the pivot pin (220A) at the pivot P2 so as to provide predefined delay and to keep the proximal edge (310) of the cam lever (130) abutted against a groove (250 A) of the cam pin (250), wherein a first end (150A) and a second end (150 B) of the spring (150) are engaged in a cam hole (130D) of the cam lever (130) and a bracket hole (120B) respectively.
[00034] Referring to Fig. 4 that shows a perspective view of a cam pin (250) in accordance with the preferred embodiment of the present invention. The cam pin (250) having a head (250B), the groove (250A), an intermediate portion (250C) and a tip (250D). The cam pin (250) is adapted to connect the pedal lever adaptor (HOB) with the rear rod holder (140). The cam pin (250) having the groove (250A) along its circumference. The said groove (250A) is adapted to accommodate the proximal edge (310) of the cam lever (130).
[00035] Fig. 4A through Fig. 4D show cross sectional view of a cam pin along the axis AA! in accordance with the preferred and other embodiments of the present invention.
[00036] Referring to Fig. 4A, in the preferred embodiment of the present invention the groove (250A) is circumferentially circular in shape.
[00037] Referring to Fig. 4B, in the another embodiment of the present invention the groove (250A) is circumferentially oval in shape.

{00038] Referring to Fig. 4C, in the another embodiment of the present invention the groove (250A) is circumferentially elliptical in shape.
[00039] Referring to Fig. 4D, in the another embodiment of the present invention the groove (250A) is circumferentially convex or concave or random in shape.
[00040] Now referring to Fig. 1 through Fig. 4D; the operational characteristics of pedal assembly (100) with a variable delay and variable load distribution mechanism to improve safety of the rider is explained. When the foot pad (110A) is pressed, the pedal lever adaptor (HOB) fluctuates with respect to the first pivot (PI) and causes pulling of a rear brake rod (240) through the rear holder (160) to actuate rear wheel brake. Fluctuation of the pedal lever adaptor (HOB) causes simultaneous displacement of the cam lever (130), as the proximal edge (130A) is abutted against the cam pin (250). After completion of predefined delay that is defined by the stiffness of the spring (150), the proximal end (130A) of the cam lever (130) starts rotating in the direction of the braking force received from the cam pin (250). In proportion to the rotary displacement of the proximal end (130A), the distal end (130B) of the cam lever (130) also starts rotating in the similar direction as that of proximal end (130A). As the distal end (130B) is connected to the front holder (140) that receives the front brake cable (230), hence the front brake cable gets pulled to actuate front wheel brake.
[00041] The said arrangement of the pedal assembly provides variable delay and variable load distribution between front wheel and rear wheel brakes of the saddle type vehicle with the use of less numbers of movable parts. Hence the pedal assembly for saddle type vehicles disclosed in the present invention ensures safety of the rider along with improved efficiency.
[00042] List of reference numerals:
1. A pedal assembly (100)

2. A pedal body (110)
3. A foot pad(110A)
4. A pedal lever adaptor (11 0B)
5. A bracket (120)
6. A second pivot hole (120A)
7. A cam lever (130)
8. A cam hole(130D)
9. A bracket hole (120B)
10. A proximal end (130A)
11. A distal end (130B)
12. A proximal edge (310)
13. A distal edge (320)
14. A first pivot hole (130C)
15. A first pivot (PI)
16. A second pivot (P2)
17. A spring (150)
18. A front holder (140)

19. A rear holder (160)
20. A cam pin (250)
21. A fastener (260)
22. A front brake cable (2 3 0)
23. A rear brake rod (240)
24. A first end(150A)
25. A second end (150B)
26. A pivot pin (220A)
27. A groove (250A)
28. A head (250B)
29. An intermediate portion (250C)
30. A tip (250D)

We Claim:
1. A pedal assembly (100) for saddle type vehicles comprising:
A pedal body (110) having a foot pad (110A) and a pedal lever adaptor (11 0B);
A rear holder (160);
A front holder (140);
A bracket (120):
A cam pin (250) that is configured to hingedly connect the rear holder (160) with the pedal lever adaptor (110B), wherein the cam pin (250) includes at least one groove (250A);
A cam lever (130) that is pivotably mounted on the bracket (120) such that, a proximal edge (310) of the cam lever (130) is abutted against the groove (250A) of the cam pin (250). wherein a distal end (130B) of the cam lever (130) is fastened with the front holder (140); and
A spring (150) having predefined stiffness that is configured to provide a predefined delay and to keep the proximal edge (310) of the cam lever (130) abutted against the groove (250A) of the cam pin (250).
wherein, the pedal assembly (100) provides variable delay and variable load distribution between a front wheel brake and a rear wheel brake of saddle type vehicles.
2. The pedal assembly (100) as claimed in claim 1. wherein the cam lever (130)
is mounted at a second pivot (P2) on the bracket (120) and configured to rotate in
the direction of braking force received from the cam pin (250) after completion of
predefined delay on pressing of the foot pad (110A).

3. The pedal assembly (100) as claimed in claim 1. wherein the cam lever (130) is mounted at the second pivot (P2) by means of a pivot pin (220A) such that the proximal edge (310) of the cam lever (130) is inclined towards the cam pin (250) and abutted against the groove (250A).
4. The pedal assembly (100) as claimed in claim 1, wherein according to preferred embodiment of the present invention the proximal edge (310) of the cam lever (130) is straight.
5. The pedal assembly (100) as claimed in claim 1, wherein according to preferred embodiment of the present invention the groove (250A) of the cam pin (250) is circumferentially circular in shape.
6. The pedal assembly (100) as claimed in claim 1, wherein in another embodiment of the present invention the groove (250A) of the cam pin (250) is circumferentially oval in shape.
7. The pedal assembly (100) as claimed in claim 1, wherein in another embodiment of the present invention the groove (250A) of the cam pin (250) is circumferentially elliptical in shape.
8. The pedal assembly (100) as claimed in claim 1, wherein in another embodiment of the present invention the groove (250A) of the cam pin (250) is circumferentially convex or concave in shape.
9. The pedal assembly (100) as claimed in claim 1, wherein in another embodiment of the present invention the groove (250A) of the cam pin (250) is circumferentially random in shape.
10. The pedal assembly (100) as claimed in claim 1? wherein the spring (150) is coaxially mounted on the pivot pin (220A) at the second pivot (P2) such that a first end (150A) and a second end (150B) of the spring (150) are engaged in a cam hole

(130D) of the cam lever (130) and a bracket hole (120B) of the bracket (120) respectively.