Classifications

• • 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
  • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
  • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
  • B60T11/16—Master control, e.g. master cylinders
  • B60T11/20—Tandem, side-by-side, or other multiple master cylinder units
  • B60T11/203—Side-by-side configuration
• • 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
  • 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 operation device for braking system More specifically, the invention concerns a device of the above kind, studied and realised particularly for permitting simultaneous and calibrated operation of a plurality of braking systems, in order to obtain an equilibrated braking, particularly for motorcycles, by using a single lever.
• present motorcycle braking systems provide two levers, placed on the handle or connected to a pedal.
• front wheel braking system i.e. disc or caliper
• the object of the present invention is therefore that of suggesting an operation device for a braking system that, by a single lever, permits braking the motorcycle by a balanced action.
• a third object of the present invention is that of permitting replacement of various elements of existing braking systems, particularly of outer and inner cylinders and of sealing rings, thus permitting a better maintenance, always employing the same operation device.
• said device can comprise means for adjustment of said further mechanical transmission means suitable to independently adjust braking intensity of each one of said front and rear braking systems.
• said adjustment means can comprise a pair of knobs acting on said mechanical transmission means.
• said further mechanical transmission means can comprise a pair of pins.
• said first and second transmission means can be hydraulic means and can comprise a body wherein two oil compression chambers are provided, each chamber providing an oil outlet hole and housing a piston - cylinder assembly, each cylinder being coupled with at least a thrust ring.
• each piston - cylinder assembly can comprise a return spring.
• said first and second hydraulic means can comprise two ducts, each duct being coupled at one end with one of said oil outlet holes and at the other end with one of the braking systems.
• said braking system can comprise a caliper and a disc brake.
• figure 1 shows an exploded rear perspective view of a portion of a braking system comprising the operation device according to the present invention
• figure 2 shows a lateral exploded view of the braking system according to figure 1
• figure 3 shows a perspective view of the operation device according to the present invention.
• Said transmission means comprise a fixed body 2 within which two piston - cylinder assemblies are housed individuating a chamber for pumping oil along hydraulic ducts (not shown in the figures), reaching front and rear braking systems.
• Said braking systems for motorcycles are usually comprised of a disc brake and of a hydraulic caliper.
• Each piston - cylinder assembly comprises a piston 3 inserted within a cylinder 4.
• Said cylinder 4 is preferably comprised of an outer cylinder 4a and of an inner cylinder 4b, and is connected with thrust rings 5.
• Each one of said piston - cylinder assemblies is provided with a gasket 6', a scraping group 6", a lid 7, a ring nut 8 and a return spring 9.
• each piston - cylinder assembly is suitable to activate a braking system, preferably a front or rear hydraulic braking system.
• Operation system 10 hinged to fixed body 2 is provided in order to control braking, said system being divided into two elements 10a and 10b mechanically coupled each other.
• element 10b rotates drags element 10a making it rotating with respect to axis A.
• Each one of two parts 10a and 10b permits operation of two pistons 3, by two pins 12 between piston 10 and said two pistons 3.
• element 10b is integral with lever 11 controlling pin 12 activating braking system of front wheel.
• a tolerance D can be provided between element 10b and element 10a.
• element 10b can freely rotate for a set angle, independently from element 10a.
• This solution permits activating first braking system, the pin 12 of which is connected to element 10b, and particularly to front braking system, thus permitting a retarded activation of rear braking system.
• This permits a further improvement of vehicle braking, mainly for two-wheel vehicles.
• Two holes 13 are provided in body 2, according to the specific design, connected with said ducts and through which oil contained within pumping chambers passes.
• a hole for automatic topping up and a hole for automatic air venting by pin 14 are further provided on body 2, possibly in the same circuit.
• Said pin has a cylindrical shape with axis coincident with said axis A. Said pin 16 is fixed to device 10 by a threaded nut 17.
• Figure 3 shows a device 10 divided in two elements 10a and 10b, collected by said pin 16. Rotation of element 10b causes rotation of element 10a about pin 16.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Transportation (AREA)
• Physics & Mathematics (AREA)
• Fluid Mechanics (AREA)
• Braking Arrangements (AREA)
• Transmission Of Braking Force In Braking Systems (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=37102444

Family Applications (1)

Country Status (2)

Cited By (1)

Citations (3)

• 2005
  • 2005-07-04 IT ITRM20050351 patent/ITRM20050351A1/it unknown
• 2006
  • 2006-06-23 WO PCT/IT2006/000483 patent/WO2007004243A1/en active Application Filing

Patent Citations (3)

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