Abstract: A friction unit for a disk brake of a vehicle includes a support plate, a friction pad comprising a friction material layer that includes a contact surface for contacting a disk, and an underlayer including an inner surface which is oriented opposite to the contact surface and which is joined to the support plate, wherein the underlayer comprises at least one slot formed in the inner surface.

Abstract: A fastener for fixing a brake disk to a wheel hub includes a shaft, a head formed on an end of the shaft, or a counterpart configured for being coupled to the shaft, and at least one damping member integrated into the shaft and/or disposed on a surface of the head or the counterpart.

Abstract: A parking brake according to an embodiment of the present disclosure includes a disk configured to rotate with a wheel of a vehicle, a carrier having a rotational shaft formed at one side, configured to advance and retract by an actuator toward an outer circumferential surface of the disk, and a friction pad coupled to the carrier to be rotatable about the rotational shaft, configured to pressurize or depressurize at least a portion of the outer circumferential surface of the disk in response to reciprocating motion of the carrier.

Abstract: According to an aspect of the disclosure, there is provided a brake piston provided in a brake system of a vehicle and pressing a brake pad to a disc by braking hydraulic pressure, the brake piston including: a body portion installed in a cylinder provided in a caliper housing, being in a shape of a pillar, and configured to be movable forward and backward, wherein the body portion includes: a first body portion provided at an outer side of the body portion in a radial direction of the disc; and a second body portion provided at an inner side of the body portion in the radial direction of the disc and having a coefficient of elasticity that is different from a coefficient of elasticity of the first body portion.

Abstract: A caliper brake includes: a brake disc; an inner brake pad positioned to an inner side of the brake disc; an outer brake pad positioned to an outer side of the brake disc; a first pressing member configured to press the inner brake pad toward the brake disc; a housing including a finger portion configured to press the outer brake pad toward the brake disc with a reaction force caused by a pressing force from the first pressing member; a second pressing member neighboring the first pressing member and configured to operate independently from the first pressing member to press the inner brake pad toward the brake disc; and a third pressing member being opposite to the second pressing member with the brake disc interposed therebetween and configured to operate independently from the first pressing member to press the outer brake pad toward the brake disc.

Abstract: The drum brake includes: a drum configured to rotate together with a wheel; a pair of brake shoes positioned inside the drum and configured to move to an inner circumferential surface of the drum by a wheel cylinder; and a pad attached to an outer circumferential surface of each brake shoe and configured to rub against the inner circumferential surface of the drum when the brake shoe operates outward, wherein the brake shoe includes an expansion portion made of a material that expands thermally in a radial direction and configured to compensate a gap formed between the pad and the drum expanding thermally.

Abstract: The application relates to a brake pad assembly (10) for a disk brake system and to a disk brake system. The proposed brake pad assembly (10) comprises a back plate (5) having a front side (4) for facing a brake disk (1) of the disk brake system and a friction layer (3) arranged on the front side (4) of the back plate (5) for contacting a friction surface of the brake disk (1). The back plate (5) comprises a guiding protrusion (9) configured to be slidably received within a guiding recess (19) of a carrier (20) of the disk brake system. The brake pad assembly (10) further comprises a pad spring (16) configured to be arranged between the guiding protrusion (9) of the back plate (5) and the guiding recess (19) of the carrier (20). The pad spring (16) is attached to the guiding protrusion (9) of the back plate (5).

Abstract: The caliper brake includes: a carrier fixed to a vehicle body, wherein a guide hole is formed in the carrier; a caliper housing movably installed in the carrier; a guide pin of which an end penetrates the caliper housing and is inserted in the guide hole to guide a movement of the caliper housing; a bush positioned between the guide hole and the guide pin and surrounding at least one portion of the guide pin; and a spring inserted in the bush.

Abstract: The disc brake includes an inner brake pad and an outer brake pad respectively disposed on both sides of the brake disc; an inner back plate and an outer back plate respectively supporting outer sides of the inner brake pad and the outer brake pad, respectively, with the brake disc interposed therebetween; a hydraulic space formed inside the inner back plate to accommodate a working fluid; and a tube through which the working fluid is transferred to the hydraulic space so that the inner back plate moves toward the brake disc by hydraulic pressure.

Abstract: The invention relates to a brake pad spring (1) for at least one brake pad (2), in particular for two brake pads, wherein the brake bad spring (1) comprises, for each of the at least one brake pad (2), two opposing walls (9, 10), configured for receiving a portion of a backplate (3) of the respective brake pad (2) therebetween, and for guiding the respective brake pad (2) between a non-braking position (A) in which the respective brake pad (2) is located at a first section (S1) of the opposing walls (9, 10), and a braking position (B) in which the brake pad (2) is located at a second section (S2) of the opposing walls (9, 10).

Abstract: The application relates to a brake pad assembly (10) for a disk brake system and to a disk brake system. The proposed brake pad assembly (10) comprises a back plate (5) having a front side (4) for facing a brake disk (1) of the disk brake system and a friction layer (3) arranged on the front side (4) of the back plate (5) for contacting a friction surface of the brake disk (1). The back plate (5) comprises a guiding protrusion (9) configured to be slidably received within a guiding recess (18) of a carrier (19) of the disk brake system. The brake pad assembly (10) further comprises a shim (16) configured to be arranged between the guiding protrusion (18) of the back plate (5) and the guiding recess (18) of the carrier (19). The shim (16) comprises a rubber layer (23) and a stiff layer (22).

Abstract: Disclosed herein is a disc brake system. The disc brake system according to the present embodiment includes a main braking part configured to slide and move a pair of main pads respectively disposed on both side surfaces of a disc in a direction of an axis of the disc and generate a main braking force by friction between the both side surfaces of the disc and the main pads, an auxiliary braking part configured to slide and move an auxiliary pad disposed at a side of an outer circumferential surface of the disc in a radial direction of the disc and generate an auxiliary braking force by friction between the outer circumferential surface of the disc and the auxiliary pad, and a controller configured to activate the main braking part in response to an input value generated based on a pedal force of a brake pedal measured by a sensor.

Abstract: Disclosed herein is a caliper brake. The caliper brake according to one embodiment of the present disclosure includes: a disc rotating together with a wheel of a vehicle; a housing including a finger formed to be bent on one side, a cylinder formed to oppose the finger on the other side, and a bridge provided between the finger and the cylinder, and provided to cover at least a part of the disc; a piston provided in the cylinder to move forward and backward to and from the finger; and a pad assembly provided in each of the finger and the cylinder to press or release both sides of the disc by moving forward and backward by the piston, and at least one of the housing, the piston, or the pad assembly is provided with a first material including wood or by combining the first material and a second material that is metal.

Abstract: A friction unit for a brake of a vehicle includes a support plate or backing plate, a friction pad disposed on the support plate and including a guide recess that extends between a friction surface of the friction pad and the support plate, a column shaped distance element movably guided in the guide recess of the friction pad, and a spring that, with a first end, contacts the support plate and, with a second end, contacts the distance element.

Abstract: An assembly for a vehicle driving device includes a hub configured to rotate about a rotary axis and one or more first fastening members configured to couple the hub and a rim of a wheel for a vehicle, wherein one end portion of the hub includes a first facing surface facing one surface of the rim, wherein the first facing surface includes a portion having an inclination angle with respect to the rotary axis, and the first fastening member is inserted into one portion of the one surface of the rim facing the portion having the inclination angle of the first facing surface and the portion having the inclination angle of the first facing surface in a perpendicular direction to couple the hub and the rim.

Abstract: The disclosed caliper brake includes a piston configured to move forward and backward in an axial direction and a back plate provided to face a front side of the piston, wherein the piston is provided with a suction plate provided on a front surface of the piston and having a center concavely formed rearward to adsorb the back plate during the piston moving forward.

Abstract: Disclosed herein is a shim for a brake pad including a plurality of first wires made of a plastic material or a rubber material and a plurality of second wires made of a metal material, and the plurality of first wires and the plurality of second wires may be formed in a single sheet shape.

Abstract: The present disclosure relates to a drum brake and a noise prevention device of the drum brake. The drum brake is provided in a vehicle, and includes a brake drum provided to be mounted on a wheel and including at least one bolt accommodation hole and a noise prevention device connected to one end of an axle shaft and configured to connect an axle flange including at least one bolt hole and the brake drum. Accordingly, vibrations of the axle shaft and the drum brake may be separated to prevent squeal noise.

Abstract: A brake apparatus for a vehicle includes a drum configured to rotate together with a wheel of the vehicle, a pair of brake shoes to which linings for rubbing against a friction surface on an inner circumferential side of the drum are attached, and a wheel cylinder disposed to contact one end of each of the pair of brake shoes and configured to operate the pair of brake shoes outwardly by receiving braking hydraulic pressure, and the drum has an air flow path allowing air flow formed inside the friction surface such that the lining and the friction surface are separated by the air flow.

Abstract: The disclosed drum brake includes a drum including a fastening part fastened to a wheel of a vehicle and a side surface part so that the drum has a cylindrical shape of which one side is open, a pair of brake shoes configured to generate a braking force by rubbing against an inner circumferential surface of the side surface part, a joint rotatably provided on the inner circumferential surface of the side surface part and including a first lever formed to protrude along an outer circumferential surface of each of the brake shoes and a second lever formed to protrude toward an inner surface of the fastening part, and a flap of which one side is fixed to the inner surface of the fastening part and the other side is formed to protrude toward an open surface of the drum, wherein the flap rotates the joint so that the other side is bent outward due to a centrifugal force according to rotation of the drum to press the second lever and the first lever supports the brake shoe.