A linkage assembly couples a plunger of a brake valve to a manually operated brake input member. The linkage assembly includes a pushrod and a resilient member. The pushrod has an end member which is engagable with the plunger. The resilient member is attached to the pushrod end member. The resilient member has an end which is engagable with the plunger when the pushrod end member is spaced apart from the plunger. The resilient member deforms to allow the pushrod end member to directly engage the plunger when the pushrod end member is moved towards the plunger. One of the end and resilient members surrounds a portion of the other of the end and resilient members. The resilient member may be a sleeve which surrounds an end portion of the pushrod. Or, the resilient member may be surrounded by a hollow end portion of the pushrod.

A linkage assembly couples a plunger of a brake valve to a manually operated brake input member. The linkage assembly includes a pushrod and a resilient member. The pushrod has an end member which is engagable with the plunger. The resilient member is attached to the pushrod end member. The resilient member has an end which is engagable with the plunger when the pushrod end member is spaced apart from the plunger. The resilient member deforms to allow the pushrod end member to directly engage the plunger when the pushrod end member is moved towards the plunger. One of the end and resilient members surrounds a portion of the other of the end and resilient members. The resilient member may be a sleeve which surrounds an end portion of the pushrod. Or, the resilient member may be surrounded by a hollow end portion of the pushrod.

The invention relates to a master brake cylinder arrangement with actuation detection for a motor vehicle braking system, having at least one piston arrangement with a piston, which is movably guided in a cylinder bore in a cylinder housing, said piston with the cylinder bore defining a pressure chamber which is fluidically coupled to a hydraulic brake circuit. During a forward stroke, the piston can be moved from a start position into a possible actuation piston along a movement axis, which coincides essentially with a longitudinal axis of the cylinder bore, and during a return stroke, said piston is moved from an actuation position into a start position. The piston is associated with a coupling element which is coupled to a position detecting rod for common movement therewith, said position detecting rod being moved essentially parallel to the first cylinder bore, the position of the position detecting rod can be detected by means of a position detecting sensor placed on the cylinder housing. According to the invention, in order to save space, the coupling element can be locked relative to the piston for a common lift movement therewith and after exceeding a predetermined path of the lift movement, the piston can be moved further relative to the coupling element.

The invention relates to a master brake cylinder arrangement with actuation detection for a motor vehicle braking system, having at least one piston arrangement with a piston, which is movably guided in a cylinder bore in a cylinder housing, said piston with the cylinder bore defining a pressure chamber which is fluidically coupled to a hydraulic brake circuit. During a forward stroke, the piston can be moved from a start position into a possible actuation piston along a movement axis, which coincides essentially with a longitudinal axis of the cylinder bore, and during a return stroke, said piston is moved from an actuation position into a start position. The piston is associated with a coupling element which is coupled to a position detecting rod for common movement therewith, said position detecting rod being moved essentially parallel to the first cylinder bore, the position of the position detecting rod can be detected by means of a position detecting sensor placed on the cylinder housing. According to the invention, in order to save space, the coupling element can be locked relative to the piston for a common lift movement therewith and after exceeding a predetermined path of the lift movement, the piston can be moved further relative to the coupling element.

A brake device includes a brake pedal, an input rod, a master cylinder, a guide rail, a slider, and a coupling arm. The brake pedal is rotatable using an arm rotary shaft disposed on one end of a pedal arm used as a fulcrum. A pedal force input to the brake pedal is transmitted to the input rod as a thrust. The master cylinder is configured to generate a brake hydraulic pressure responsive to the thrust input to the input rod. The guide rail is disposed on the pedal arm and extends along a longitudinal direction of the pedal arm. The slider is coupled to the pedal arm via the guide rail and is movable on the guide rail. The coupling arm has a first end rotatably coupled to the slider and a second end rotatably coupled to the input rod. The second end is different from the first end.

A driving control device for a vehicle, comprising a handle bar interconnected with a brake bar having attachment means for attachment to a brake pedal, the attachment means comprising a locking mechanism comprising an engagement head with a shaft portion and a bail portion having a flat portion, the latter locking mechanism further comprising an engagement socket having a spherical compartment fitting the ball portion and a wall portion in the opening of the socket allowing the engagement head to enter the spherical compartment when the flat portion slides over the wall portion. The driving control device is intended for handicapped drivers and for safe and easy attachment to a vehicle brake pedal.

The present application relates to a brake actuating unit for a brake-by-wire motor vehicle brake system. The brake actuating unit comprises a housing, a first electrically controllable pressure supplying device, and a second electrically controllable pressure supplying device. The brake actuating unit further comprises a first connector for electrically connecting the brake actuating unit with a vehicle control unit and with a power network. The first connector is electrically connected with the first electrically controllable pressure supplying device. The brake actuating unit comprises a second connector for electrically connecting the brake actuating unit with the vehicle control unit and with the power network. The second connector is electrically connected with the second electrically controllable pressure supplying device. The brake actuating unit comprises a first cylinder and piston arrangement disposed within the housing and a piston rod for transmitting a displacement of a brake pedal to a piston.

A master cylinder for a hydraulic brake system or clutch system, in particular of a vehicle steered by handlebars, in particular of a bicycle, includes a housing containing a piston chamber. The housing accommodates a piston slidable therein and a pressure chamber. A compensating chamber communicates with the pressure chamber through at least one compensating bore. The housing has an attachment portion for attachment to a handlebar tube and the compensating chamber extends to the attachment portion and has a separating member for separating the hydraulic fluid from a compensating volume. The attachment portion has a clamping part made and arranged to attach the separating member to the attachment portion.

A master cylinder for a hydraulic brake system or clutch system, in particular of a vehicle steered by handlebars, in particular of a bicycle, includes a housing containing a piston chamber. The housing accommodates a piston slidable therein and a pressure chamber. A compensating chamber communicates with the pressure chamber through at least one compensating bore. The housing has an attachment portion for attachment to a handlebar tube and the compensating chamber extends to the attachment portion and has a separating member for separating the hydraulic fluid from a compensating volume. The attachment portion has a clamping part made and arranged to attach the separating member to the attachment portion.

An embodiment discloses a brake booster input rod, including: a front end portion to which an input piston of a brake booster is connected; a rear end portion to which a yoke connected with to a brake pedal is attached; and an annular boot installing groove to be engaged with, when a boot covers a front portion of the input rod, a rear end bead portion of the boot with a fastening margin. Through rolling, two annular groove portions and an annular ridge portion are formed to each have a triangular section. The ridge portion functions as a rear side wall of the boot installing groove.