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US 12,553,484 B2Granted
Drum brake
AssigneeHl Mando Corporation
InventorHatem Shahin
Life of this patent
Estimating the term…
Abstract
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.
Claims9
A drum brake of a vehicle, comprising:
- 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,
- wherein the rotation plate includes a curved groove formed to be recessed in the rotation plate to accommodate the moving pin and curved along a part of a moving path along which the moving pin moves to guide a constant distance in which the moving pin moves.
3 more elements
A drum brake of a vehicle, comprising
- 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,
- wherein the elastic part is provided as a spiral torsion spring to provide a restoring force in a direction opposite to a rotating direction of the rotation plate when the rotation plate rotates.
3 more elements
A drum brake of a vehicle, comprising:
- 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,
- wherein the rotation plate is coupled to the backplate while elastically supported by the elastic part,
- wherein a pivot pin is provided in a center of the rotation plate to rotate the rotation plate.
4 more elements
A drum brake of a vehicle comprising:
- 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,
- wherein the rotation unit is provided as at least a pair of rotation units disposed left-right symmetrically on the backplate,
- wherein the rotation unit includes two pairs of rotation units in which one pair of the rotation units are disposed on a horizontal diameter crossing a center of the backplate and the other pair of rotation units are disposed close to a wheel cylinder provided in the backplate.
4 more elements
A drum brake of a vehicle, comprising:
- 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,
- wherein the rotation plate has an oval phase having a long radius in a horizontal direction and a short radius in a vertical direction.
3 more elements
Dependencies are inferred from the claim text.