WO2020194200A1 - An assembly for cable-operated hydraulic front braking mechanism - Google Patents

An assembly for cable-operated hydraulic front braking mechanism Download PDF

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Publication number
WO2020194200A1
WO2020194200A1 PCT/IB2020/052791 IB2020052791W WO2020194200A1 WO 2020194200 A1 WO2020194200 A1 WO 2020194200A1 IB 2020052791 W IB2020052791 W IB 2020052791W WO 2020194200 A1 WO2020194200 A1 WO 2020194200A1
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WO
WIPO (PCT)
Prior art keywords
pivot
plunger
assembly
cable
lever
Prior art date
Application number
PCT/IB2020/052791
Other languages
French (fr)
Inventor
Pancham Koorana Anand
Deepak YOGESH
Original Assignee
Suprajit Engineering Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Suprajit Engineering Ltd filed Critical Suprajit Engineering Ltd
Publication of WO2020194200A1 publication Critical patent/WO2020194200A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62L—BRAKES SPECIALLY ADAPTED FOR CYCLES
    • B62L3/00—Brake-actuating mechanisms; Arrangements thereof
    • B62L3/02—Brake-actuating mechanisms; Arrangements thereof for control by a hand lever
    • B62L3/023—Brake-actuating mechanisms; Arrangements thereof for control by a hand lever acting on fluid pressure systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T7/00—Brake-action initiating means
    • B60T7/02—Brake-action initiating means for personal initiation
    • B60T7/08—Brake-action initiating means for personal initiation hand actuated
    • B60T7/10—Disposition of hand control
    • B60T7/102—Disposition of hand control by means of a tilting lever
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62L—BRAKES SPECIALLY ADAPTED FOR CYCLES
    • B62L3/00—Brake-actuating mechanisms; Arrangements thereof
    • B62L3/08—Mechanisms specially adapted for braking more than one wheel

Definitions

  • the present invention relates to an assembly for a cable-operated hydraulic front braking mechanism. Further, the present invention particularly relates to an assembly for connecting the hydraulic front braking system to the dual braking system of a vehicle by means of a cable.
  • Two-wheeler vehicles employ various braking mechanisms such as drum brakes, disc brakes, hydraulic brakes, dual braking systems and so on.
  • the utility curve of dual braking systems has been exponential over the recent decade, wherein the current vehicles employ dual cylinders, one to operate the front brake and the other to operate the dual braking system.
  • the dual cylinders are required to be replaced which is often a complex and expensive affair.
  • the Patent Application No. IN201614015229A titled “A combined braking system ( CBS ) actuator used for motorcycles linked front disc brake and rear drum brake” discloses a front-disc and rear-drum combined braking device for motorcycle, comprising a housing, a brake connecting rod, and a steering rod and an actuator inside the housing.
  • a connecting rod between the steering rod and the actuator has both ends movably connected, with a front connecting rivet of the steering rod and a rear connecting rivet of the actuator respectively, realizing linkage between the steering rod and the actuator connecting rod.
  • the end of the front cable of the steering rod is connected with one end of a front cable for a front brake.
  • a middle portion of the steering rod is fixed inside the housing.
  • the end of the rear cable of the actuator is in connection with one end of a rear cable used for a rear brake.
  • One end of the brake connecting rod is movably connected with a middle portion of the actuator, and the other end thereof extends out of the housing.
  • the Patent Application No. WO2015019133A2 titled “ Synchronized braking system” discloses a synchronized braking system for two- wheeled vehicles.
  • the synchronized braking system includes a front wheel brake, a rear wheel brake, a combined wheel brake lever, and a distributor.
  • the combined wheel brake lever is connected to the front wheel brake and the rear wheel brake through a combined front brake cable and a rear brake cable.
  • the distributor is connected to the combined wheel brake lever to actuate the front wheel brake and the rear wheel brake upon actuation of the combined wheel brake lever.
  • the distributor is pivoted about a distributor pivot axis, and the distributor pivot axis is offset along a length of the distributor with respect to a center axis of the distributor.
  • the present invention overcomes the drawbacks of the prior art by providing an assembly for a cable-operated hydraulic front braking mechanism.
  • the assembly comprises a master cylinder unit for converting the mechanical braking force applied by a user into hydraulic pressure.
  • the master cylinder unit comprises a plunger, a lever and a lever slot wherein the plunger compresses the braking fluid stored in the master cylinder unit.
  • a pivot bracket is mounted on the master cylinder unit and comprises a pair of mounting holes which are provided on either ends of the pivot bracket. The mounting holes are provided to retrofit the assembly with the current hydraulic braking systems.
  • a pivot plate is disposed perpendicularly downwards to the direction of the pivot bracket, wherein pivot plate is secured to the pivot bracket by means of a pivot shaft which is disposed on one end of the pivot plate. Further, the plunger is secured with the pivot plate by means of a plunger push rod pin. A plunger push rod is disposed between the plunger push rod pin and the plunger, wherein the plunger push rod converts the mechanical movement of the pivot plate into uniform linear motion of the plunger.
  • a front brake cable mounting point is disposed on one end of the pivot plate which is opposite to the pivot shaft, wherein the front brake cable mounting point allows a cable to be connected between the front brake cable mounting point and the dual braking system of a vehicle.
  • the cable connected to the front brake cable mounting point actuates the plunger independent of the lever upon exertion of manual force on the dual braking system by the user.
  • the facility of a cable- operated front braking system enables the user to implement a braking action simultaneously on the front wheel and the rear wheel by manually actuating the dual braking system.
  • the present invention provides a simple and cost-effective solution which may be retrofitted with the current hydraulic braking systems.
  • the assembly facilitates simultaneous braking action of the front wheel and the rear wheel by employing a cable-operated front hydraulic front braking mechanism using a single master cylinder unit and a dual braking system.
  • FIG 1 illustrates a perspective view of an assembly for a cable-operated hydraulic front braking mechanism without a lever.
  • FIG 2 illustrates a perspective view of an assembly for a cable-operated hydraulic front braking mechanism with a lever.
  • the present invention provides an assembly for a cable-operated hydraulic front braking mechanism.
  • the assembly comprises a master cylinder unit further comprising a plunger, a lever and a lever slot.
  • a pivot bracket comprising a pair of mounting holes is mounted on the master cylinder unit and a pivot plate is disposed perpendicularly downwards to the direction of the pivot bracket.
  • the pivot plate and pivot bracket are secured together by a pivot shaft which is disposed on one end of the pivot plate.
  • the assembly comprises a front brake cable mounting point disposed on one end of the pivot plate for allowing a cable to be connected between the front brake cable mounting point and the dual braking system of a vehicle.
  • FIG 1 illustrates an assembly for a cable-operated hydraulic front braking mechanism.
  • the assembly (100) comprises a master cylinder unit (101) for converting the mechanical braking force applied by a user into hydraulic pressure.
  • the master cylinder unit (101) comprises a plunger (102), a lever (103) and a lever slot (104) wherein the plunger (102) compresses the braking fluid stored in the master cylinder unit (101).
  • a pivot bracket (105) is mounted on the master cylinder unit (101) and comprises a pair of mounting holes (106a, 106b) which are provided on either ends of the pivot bracket (105).
  • the mounting holes (106a, 106b) are provided to retrofit the assembly (100) with the current hydraulic braking systems.
  • a pivot plate (107) is disposed perpendicularly downwards to the direction of the pivot bracket (105), wherein pivot plate (107) is secured to the pivot bracket (105) by means of a pivot shaft (108) which is disposed on one end of the pivot plate (107). Further, the plunger (102) is secured with the pivot plate (107) by means of a plunger push rod pin (109).
  • a plunger push rod (110) is disposed between the plunger push rod pin (109) and the plunger (102), wherein the plunger push rod (110) converts the mechanical movement of the pivot plate (107) into uniform linear motion of the plunger (102).
  • a front brake cable mounting point (111) is disposed on one end of the pivot plate (107) which is opposite to the pivot shaft (108), wherein the front brake cable mounting point (111) allows a cable to be connected between the front brake cable mounting point (111) and the dual braking system of a vehicle.
  • the cable connected to the front brake cable mounting point (111) actuates the plunger (102) independent of the lever (103) upon exertion of manual force on the dual braking system by the user.
  • the facility of a cable-operated front braking system enables the user to implement a braking action simultaneously on the front wheel and the rear wheel by manually actuating the dual braking system.
  • FIG 2 illustrates an assembly for a cable-operated hydraulic front braking mechanism with a lever.
  • the lever (103) provided in the master cylinder unit (101) actuates a linear motion of the plunger (102). Further, the master cylinder unit (101) comprises a lever slot (104) for retrofitting the lever (103) with the assembly (100).
  • the present invention provides a simple and cost-effective solution which may be retrofitted with the current hydraulic braking systems.
  • the assembly (100) facilitates simultaneous braking action of the front wheel and the rear wheel by employing a cable-operated front hydraulic front braking mechanism using a single master cylinder unit (101) and a dual braking system.
  • a single master cylinder unit (101) and a dual braking system.

Abstract

The invention provides an assembly for cable-operated hydraulic front braking mechanism. The assembly comprises a master cylinder unit further comprising a plunger, lever and lever slot. A pivot bracket comprising a pair of mounting holes is mounted on the master cylinder unit and a pivot plate is disposed perpendicularly downwards to the direction of the pivot bracket. The pivot plate and pivot bracket are secured together by a pivot shaft which is disposed on one end of the pivot plate. Further the assembly comprises a front brake cable mounting point disposed on one end of the pivot plate for allowing a cable to be connected between the front brake cable mounting point and the dual braking system of a vehicle.

Description

TITLE OF THE INVENTION
An assembly for cable-operated hydraulic front braking mechanism
DESCRIPTION OF THE INVENTION Technical field of the invention
[0001] The present invention relates to an assembly for a cable-operated hydraulic front braking mechanism. Further, the present invention particularly relates to an assembly for connecting the hydraulic front braking system to the dual braking system of a vehicle by means of a cable.
Background of the invention
[0002] Two-wheeler vehicles employ various braking mechanisms such as drum brakes, disc brakes, hydraulic brakes, dual braking systems and so on. The utility curve of dual braking systems has been exponential over the recent decade, wherein the current vehicles employ dual cylinders, one to operate the front brake and the other to operate the dual braking system. However, upon wear and tear, the dual cylinders are required to be replaced which is often a complex and expensive affair.
[0003] The Patent Application No. IN201614015229A titled “A combined braking system ( CBS ) actuator used for motorcycles linked front disc brake and rear drum brake” discloses a front-disc and rear-drum combined braking device for motorcycle, comprising a housing, a brake connecting rod, and a steering rod and an actuator inside the housing. A connecting rod between the steering rod and the actuator has both ends movably connected, with a front connecting rivet of the steering rod and a rear connecting rivet of the actuator respectively, realizing linkage between the steering rod and the actuator connecting rod. The end of the front cable of the steering rod is connected with one end of a front cable for a front brake. A middle portion of the steering rod is fixed inside the housing. The end of the rear cable of the actuator is in connection with one end of a rear cable used for a rear brake. One end of the brake connecting rod is movably connected with a middle portion of the actuator, and the other end thereof extends out of the housing.
[0004] The Patent Application No. WO2015019133A2 titled “ Synchronized braking system” discloses a synchronized braking system for two- wheeled vehicles. The synchronized braking system includes a front wheel brake, a rear wheel brake, a combined wheel brake lever, and a distributor. The combined wheel brake lever is connected to the front wheel brake and the rear wheel brake through a combined front brake cable and a rear brake cable. Further, the distributor is connected to the combined wheel brake lever to actuate the front wheel brake and the rear wheel brake upon actuation of the combined wheel brake lever. The distributor is pivoted about a distributor pivot axis, and the distributor pivot axis is offset along a length of the distributor with respect to a center axis of the distributor.
[0005] Hence, there is a need for a cost-effective and retrofitting solution for simultaneously operating the front brake and rear brake by means of a cable- operated dual braking system.
Summary of the invention:
[0006] The present invention overcomes the drawbacks of the prior art by providing an assembly for a cable-operated hydraulic front braking mechanism. The assembly comprises a master cylinder unit for converting the mechanical braking force applied by a user into hydraulic pressure. The master cylinder unit comprises a plunger, a lever and a lever slot wherein the plunger compresses the braking fluid stored in the master cylinder unit. A pivot bracket is mounted on the master cylinder unit and comprises a pair of mounting holes which are provided on either ends of the pivot bracket. The mounting holes are provided to retrofit the assembly with the current hydraulic braking systems. [0007] A pivot plate is disposed perpendicularly downwards to the direction of the pivot bracket, wherein pivot plate is secured to the pivot bracket by means of a pivot shaft which is disposed on one end of the pivot plate. Further, the plunger is secured with the pivot plate by means of a plunger push rod pin. A plunger push rod is disposed between the plunger push rod pin and the plunger, wherein the plunger push rod converts the mechanical movement of the pivot plate into uniform linear motion of the plunger.
[0008] A front brake cable mounting point is disposed on one end of the pivot plate which is opposite to the pivot shaft, wherein the front brake cable mounting point allows a cable to be connected between the front brake cable mounting point and the dual braking system of a vehicle. The cable connected to the front brake cable mounting point actuates the plunger independent of the lever upon exertion of manual force on the dual braking system by the user. The facility of a cable- operated front braking system enables the user to implement a braking action simultaneously on the front wheel and the rear wheel by manually actuating the dual braking system.
[0009] The present invention provides a simple and cost-effective solution which may be retrofitted with the current hydraulic braking systems. The assembly facilitates simultaneous braking action of the front wheel and the rear wheel by employing a cable-operated front hydraulic front braking mechanism using a single master cylinder unit and a dual braking system.
Brief description of the drawings:
[0010] 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.
[0011] FIG 1 illustrates a perspective view of an assembly for a cable-operated hydraulic front braking mechanism without a lever. [0012] FIG 2 illustrates a perspective view of an assembly for a cable-operated hydraulic front braking mechanism with a lever.
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 an assembly for a cable-operated hydraulic front braking mechanism. The assembly comprises a master cylinder unit further comprising a plunger, a lever and a lever slot. A pivot bracket comprising a pair of mounting holes is mounted on the master cylinder unit and a pivot plate is disposed perpendicularly downwards to the direction of the pivot bracket. The pivot plate and pivot bracket are secured together by a pivot shaft which is disposed on one end of the pivot plate. Further the assembly comprises a front brake cable mounting point disposed on one end of the pivot plate for allowing a cable to be connected between the front brake cable mounting point and the dual braking system of a vehicle.
[0015] FIG 1 illustrates an assembly for a cable-operated hydraulic front braking mechanism. The assembly (100) comprises a master cylinder unit (101) for converting the mechanical braking force applied by a user into hydraulic pressure. The master cylinder unit (101) comprises a plunger (102), a lever (103) and a lever slot (104) wherein the plunger (102) compresses the braking fluid stored in the master cylinder unit (101). A pivot bracket (105) is mounted on the master cylinder unit (101) and comprises a pair of mounting holes (106a, 106b) which are provided on either ends of the pivot bracket (105). The mounting holes (106a, 106b) are provided to retrofit the assembly (100) with the current hydraulic braking systems. [0016] A pivot plate (107) is disposed perpendicularly downwards to the direction of the pivot bracket (105), wherein pivot plate (107) is secured to the pivot bracket (105) by means of a pivot shaft (108) which is disposed on one end of the pivot plate (107). Further, the plunger (102) is secured with the pivot plate (107) by means of a plunger push rod pin (109). A plunger push rod (110) is disposed between the plunger push rod pin (109) and the plunger (102), wherein the plunger push rod (110) converts the mechanical movement of the pivot plate (107) into uniform linear motion of the plunger (102).
[0017] According to one or more embodiments of the present invention, a front brake cable mounting point (111) is disposed on one end of the pivot plate (107) which is opposite to the pivot shaft (108), wherein the front brake cable mounting point (111) allows a cable to be connected between the front brake cable mounting point (111) and the dual braking system of a vehicle. The cable connected to the front brake cable mounting point (111) actuates the plunger (102) independent of the lever (103) upon exertion of manual force on the dual braking system by the user. The facility of a cable-operated front braking system enables the user to implement a braking action simultaneously on the front wheel and the rear wheel by manually actuating the dual braking system.
[0018] FIG 2 illustrates an assembly for a cable-operated hydraulic front braking mechanism with a lever. The lever (103) provided in the master cylinder unit (101) actuates a linear motion of the plunger (102). Further, the master cylinder unit (101) comprises a lever slot (104) for retrofitting the lever (103) with the assembly (100).
[0019] The present invention provides a simple and cost-effective solution which may be retrofitted with the current hydraulic braking systems. The assembly (100) facilitates simultaneous braking action of the front wheel and the rear wheel by employing a cable-operated front hydraulic front braking mechanism using a single master cylinder unit (101) and a dual braking system. [0020] 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.
Reference numbers:
Figure imgf000008_0001

Claims

Claims We claim:
1. An assembly for cable-operated hydraulic front braking mechanism, the assembly (100) comprising:
a. a master cylinder unit (101) for converting the mechanical braking force applied by a user into hydraulic pressure, wherein the master cylinder unit (101) comprises: a plunger (102) for compressing the braking fluid stored in the master cylinder unit (101); a lever (103) for actuating the linear motion of the plunger (102); and a lever slot (104) for retrofitting the lever (103) with the assembly (100); b. a pivot bracket (105) mounted on the master cylinder unit (101), wherein the pivot bracket (105) comprises a pair of mounting holes (106a, 106b) provided on either ends of the pivot bracket (105); c. a pivot plate (107) disposed perpendicularly downwards to the direction of the pivot bracket (105);
d. a pivot shaft (108) disposed on one end of the pivot plate (107), wherein pivot shaft (108) secures the pivot plate (107) with the pivot bracket (105);
e. a plunger push rod pin (109) for securing the plunger (102) with the pivot plate (107);
f. a plunger push rod (110) disposed between the plunger push rod pin (109) and the plunger (102), wherein the plunger push rod (110) converts the mechanical movement of the pivot plate (107) into uniform linear motion of the plunger (102); g. a front brake cable mounting point (111) disposed on one end of the pivot plate (107), wherein the front brake cable mounting point (111) is provided on the end opposite to the pivot shaft (108);
2. The assembly (100) as claimed in claim 1, wherein the pivot bracket (105) comprising a pair of mounting holes (106a, 106b) are provided to retrofit the assembly (100) with the current hydraulic braking systems.
3. The assembly (100) as claimed in claim 1, wherein the front brake cable mounting point (109) allows a cable to be connected between the front brake cable mounting point (109) and the dual braking system of a vehicle.
4. The assembly (100) as claimed in claim 1, wherein the cable connected to the front brake cable mounting point (109) actuates the plunger (102) independent of the lever (103) upon exertion of manual force on the dual braking system by the user.
PCT/IB2020/052791 2019-03-25 2020-03-25 An assembly for cable-operated hydraulic front braking mechanism WO2020194200A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN201941011471 2019-03-25
IN201941011471 2019-03-25

Publications (1)

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WO2020194200A1 true WO2020194200A1 (en) 2020-10-01

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7109418B2 (en) 2017-03-01 2022-07-29 出光興産株式会社 Polycarbonate resin composition and molded article thereof
JP7109420B2 (en) 2017-03-01 2022-07-29 出光興産株式会社 Flame-retardant polycarbonate resin composition and molded article thereof
JP7109419B2 (en) 2017-03-01 2022-07-29 出光興産株式会社 Polycarbonate resin composition and molded article thereof
JP7109421B2 (en) 2017-03-01 2022-07-29 出光興産株式会社 Polycarbonate resin composition and molded article thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0640051B1 (en) * 1993-03-20 1998-12-09 Automotive Products Public Limited Company An operating mechanism for a hydraulic master cylinder
WO2017168231A1 (en) * 2016-03-30 2017-10-05 Tvs Motor Company Limited Synchronized disc braking system for a two-wheeled vehicle

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0640051B1 (en) * 1993-03-20 1998-12-09 Automotive Products Public Limited Company An operating mechanism for a hydraulic master cylinder
WO2017168231A1 (en) * 2016-03-30 2017-10-05 Tvs Motor Company Limited Synchronized disc braking system for a two-wheeled vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7109418B2 (en) 2017-03-01 2022-07-29 出光興産株式会社 Polycarbonate resin composition and molded article thereof
JP7109420B2 (en) 2017-03-01 2022-07-29 出光興産株式会社 Flame-retardant polycarbonate resin composition and molded article thereof
JP7109419B2 (en) 2017-03-01 2022-07-29 出光興産株式会社 Polycarbonate resin composition and molded article thereof
JP7109421B2 (en) 2017-03-01 2022-07-29 出光興産株式会社 Polycarbonate resin composition and molded article thereof

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