Device for adjusting the free stroke in hydraulic brakes of bicycles or motorcycles
AssigneeFormula S.R.L.
InventorGiancarlo Vezzoli
Life of this patent
Estimating the term…
Abstract
A device for adjusting the free stroke for hydraulic brakes of bicycles or motorcycles of the type including a pump assembly (4) for operating an actuator element (16), and a communication line (17) for a working fluid, set between a pump assembly and an actuator element, the device including an expansion chamber (25) set along the communication line between the pump assembly and the actuator element.
Claims20
A device for adjusting the free stroke for hydraulic brakes of bicycles or motorcycles of the type comprising a pump assembly for operating an actuator element and a communication line for a working fluid, which is set between said pump assembly and said actuator element, the pump assembly having a piston, the device comprising:
- a variable-volume chamber, designed to be set along said communication line between said pump assembly and said actuator element;
- an element mobile in response to entry of working fluid coming from an outlet of fluid from said pump assembly by effect of a stroke of the piston so as to pass from a first position in which said chamber is at least partially empty of fluid and a second position in which said chamber has been filled with an amount of fluid, in which during filling of the chamber the actuator element is not operated to define a free stroke of the piston;
- and
- a means for adjusting the volume of said chamber to be filled.
An hydraulic-control apparatus for bicycles and motorcycles, comprising:
- a pump assembly having a piston;
- a hydraulic actuator governed by said pump assembly via a communication line for a working fluid;
- a device comprising a variable-volume chamber, designed to be set along said communication line between said pump assembly and said actuator, an element mobile in response to entry of working fluid coming from an outlet of fluid from said pump assembly by effect of a stroke of the piston so as to pass from a first position in which said chamber is at least partially empty of fluid and a second position in which said chamber has been filled with an amount of fluid, in which during filling of the chamber the actuator is not operated to define a free stroke of the piston, and a means for adjusting the volume of said chamber to be filled.
A device for adjusting the free stroke for hydraulic brakes of bicycles or motorcycles of the type comprising a pump assembly for operating an actuator element and a communication line for a working fluid, which is set between said pump assembly and said actuator element, the device comprising:
- a sleeve;
- a chamber adjuster element connected to said sleeve such that said chamber adjuster element moves relative to said sleeve, at least a portion of said chamber adjuster element and at least a portion of said sleeve defining at least a portion of a variable-volume chamber set along said communication line between said pump assembly and said actuator element, wherein movement of said chamber adjuster element alters a volume of said chamber;
- an element movable in response to entry of working fluid coming from an outlet of fluid from said pump assembly so as to pass from a first position in which said chamber is at least partially empty of fluid and a second position in which said chamber has been filled with an amount of fluid.
Dependencies are inferred from the claim text.