A brake caliper device is adapted to be used with a brake disk, and includes a main body unit, first and second pads, and a caliper actuator unit. The caliper actuator unit includes an actuating member, a bolt member that abuts against the actuating member, and a threaded sleeve that is threadedly engaged to the bolt member. When the actuating member is driven by an external force, the actuating member is capable of vibrating axially to cause an axial vibration of the bolt member, which prompts the threaded sleeve to rotate relative to the bolt member for pushing the first pad toward the brake disk, thereby automatically providing a travel stroke that compensates for pad wear.

A brake caliper comprising: a set of brake pads positioned on each side of a brake disc; a first actuator including a first drive gearwheel driving a first mobile piston pressing against a first portion of brake pad in order to move same; a second actuator including a second drive gearwheel driving a second mobile piston pressing against a second portion of the pad in order to move same, with a mode of operation that is the opposite of that of the first actuator; a first and a second worm screws which are secured to one another and of opposite hand to one another, rotationally driven and capable of translational movement in their longitudinal direction and in mesh with the first and second gearwheels respectively in order to turn these in opposite directions.

A brake device (102), in particular a utility vehicle disc brake, has a brake disc (106), at least one brake pad (104, 104), a transmission member (114) coupled to the brake pad (104, 104) for pressing the brake pad (104, 104) against the brake disc (106), a drive for generating a drive variable, a non-linear mechanism (110) operatively connected to the drive and the transmission member (114) for transmission of the drive variable to the transmission member (114), and an adjusting unit (120) for adjusting a clearance (108) between the transmission member (114) and the brake disc (106). The device includes a brake pad wear sensor for detecting the degree of wear of the brake pad (104, 104) and a control unit, with a signal-carrying connection to the sensor to vary the clearance (108) as a function of the wear of the brake pad (104, 104) determined by the sensor.

A brake device (102), in particular a utility vehicle disc brake, has a brake disc (106), at least one brake pad (104, 104), a transmission member (114) coupled to the brake pad (104, 104) for pressing the brake pad (104, 104) against the brake disc (106), a drive for generating a drive variable, a non-linear mechanism (110) operatively connected to the drive and the transmission member (114) for transmission of the drive variable to the transmission member (114), and an adjusting unit (120) for adjusting a clearance (108) between the transmission member (114) and the brake disc (106). The device includes a brake pad wear sensor for detecting the degree of wear of the brake pad (104, 104) and a control unit, with a signal-carrying connection to the sensor to vary the clearance (108) as a function of the wear of the brake pad (104, 104) determined by the sensor.

Disclosed is a disc brake including a stationary support arm which includes a C-shaped recess, a slide which fits closely to the walls of the recess, a brake pad including two lateral lugs, each of which is received in a recess with a slide inserted therebetween, and a spring for resiliently returning the brake pad to its inoperative position, including a portion for attachment to the stationary support. The attachment portion includes an attachment tab, at least one flange of the slide includes an attachment strip, and the attachment tab and the attachment strip include complementary element for connection by form-fitting interaction.

A drum brake of a vehicle according to a present embodiment may include a pair of brake shoes disposed in a drum to be moved to an inner circumferential surface of a brake drum of the drum brake by a wheel cylinder, a backplate which is fixed to a vehicle body and to which each of the brake shoes is rotatably coupled, and a rotation unit configured to assist a restoring force of the brake shoe, wherein the rotation unit includes a moving pin fixed to a side surface of the brake shoe and formed to protrude toward the backplate, a rotation plate to which the moving pin is coupled to receive an external force in a moving direction of the moving pin, and an elastic part disposed between the rotation plate and the backplate to elastically support the rotation plate.

A drum brake of a vehicle according to a present embodiment may include a pair of brake shoes disposed in a drum to be moved to an inner circumferential surface of a brake drum of the drum brake by a wheel cylinder, a backplate which is fixed to a vehicle body and to which each of the brake shoes is rotatably coupled, and a rotation unit configured to assist a restoring force of the brake shoe, wherein the rotation unit includes a moving pin fixed to a side surface of the brake shoe and formed to protrude toward the backplate, a rotation plate to which the moving pin is coupled to receive an external force in a moving direction of the moving pin, and an elastic part disposed between the rotation plate and the backplate to elastically support the rotation plate.

An S-cam brake system having is disclosed. The system includes a roller assembly, an S-cam, a shoe, and an S-cam brake. The roller assembly is configured to allow relative movement between a roller and a roller pin. The roller assembly is interposed between the S-cam and the shoe. Relative movement between a roller and a roller pin can compensates a defect in machining the outer contact surface of the S-cam roller or a defect in concentricity of roller seating depressions of the shoe.

A multi-disk brake assembly includes a stator disk that is non-rotatable, a rotatable rotor disk arranged adjacently and coaxially with the stator disk, and an axial retention device. The rotor disk and the stator disk are axially moveable between an engaged position during braking operation and a disengaged position during a released mode of operation. The axial retention device is axially moveable and supports at least one of the disks. The axial retention device includes a set of axially translatable pins or bolts that are pushed by the disks during the braking operation and maintain a predetermined space between the disks during the released mode of operation. The predetermined space and position of the disks is maintained when the brake assembly is subject to forces due to vehicle acceleration or cornering.

A multi-disk brake assembly includes a stator disk that is non-rotatable, a rotatable rotor disk arranged adjacently and coaxially with the stator disk, and an axial retention device. The rotor disk and the stator disk are axially moveable between an engaged position during braking operation and a disengaged position during a released mode of operation. The axial retention device is axially moveable and supports at least one of the disks. The axial retention device includes a set of axially translatable pins or bolts that are pushed by the disks during the braking operation and maintain a predetermined space between the disks during the released mode of operation. The predetermined space and position of the disks is maintained when the brake assembly is subject to forces due to vehicle acceleration or cornering.