Disc Brake for vehicle

Patent metadata

Field	Value
Publication number	US-10619688-B2
Application number	US-201815928530-A
Country	US
Kind code	B2
Filing date	Mar 22, 2018
Priority date	Mar 23, 2017
Publication date	Apr 14, 2020
Grant date	Apr 14, 2020

Abstract

Disclosed herein is a disc brake for vehicle. The disc brake for vehicle according to the embodiment includes a pair of friction pads disposed at both sides of a disc, a caliper housing and a piston configured to press the pair of the friction pads against the disc, and a moving guide configured to guide movement of the pair of the friction pads pressed against the disc by the caliper housing and the piston, wherein the moving guide may include a pair of guide arms disposed at both outer sides of the caliper housing and integrally connected by a steering knuckle of a vehicle, and the friction pad may be slidably supported by the guide arms using a pair of outward protrusions provided at both sides of the friction pad such that the friction pad extends between the pair of the guide arms and the caliper housing and further include a pad clip assembled with the outward protrusion to provide elastic support between the outward protrusion and the caliper housing.

First claim

What is claimed is:

1. A disc brake for vehicle comprising:
a pair of friction pads disposed at both sides of a disc;
a caliper housing and a piston configured to press the pair of friction pads against the disc; and
a moving guide configured to guide movement of the pair of friction pads pressed against the disc by the caliper housing and the piston,
wherein the moving guide includes a pair of guide arms disposed at both outer sides of the caliper housing and integrally connected by a steering knuckle of a vehicle,
wherein a friction pad of the pair of friction pads is slidably supported by a guide arm of the pair of guide arms using a pair of outward protrusions provided at both sides of the friction pad such that the friction pad extends between the pair of guide arms and the caliper housing and further includes a pad clip assembled with an outward protrusion of the pair of outward protrusions to provide elastic support between the outward protrusion and the caliper housing,
wherein the pad clip is arranged such that at least a portion of the pad clip is in direct contact with an inner surface of the caliper housing during braking, and
wherein the pad clip provides elastic support in a rotational direction of the disc between the outward protrusion and the caliper housing in a state in which the outward protrusion is blocked from being in direct contact with the caliper housing.

2. The disc brake for vehicle of claim 1 , wherein the pad clip includes:
a support plate configured to support an outer surface of the outward protrusion;
fixedly assembling parts configured to bend and extend from a plurality of positions of an edge of the support plate to cover and restrict a circumference of a side surface of the outward protrusion and fix the support plate to the outward protrusion; and
a spring configured to bend and extend from the edge of the support plate and located between the fixedly assembling parts to provide elastic support between the support plate and the caliper housing.

3. The disc brake for vehicle of claim 2 , wherein the spring and the fixedly assembling parts extend from the edge of the support plate in a pressing direction of the friction pad pressing the disc.

4. The disc brake for vehicle of claim 2 , wherein the spring extends to be opened outward from the support plate in a pressing direction of the friction pad pressing the disc, and includes an assembly guide provided at one side of an end of the spring in a radial direction of the disc and configured to bend and extend toward an inside of the spring in a direction perpendicular to the support plate.

5. The disc brake for vehicle of claim 2 , wherein the spring extends to be opened outward from the support plate in a pressing direction of the friction pad pressing the disc, and includes a sliding guide disposed at an end of the spring in an extending direction of the spring and configured to bend and extend toward the inside of the support plate in a moving direction of the friction pad to guide sliding of the spring and the caliper housing.

6. The disc brake for vehicle of claim 2 , wherein the fixedly assembling parts are provided such that the friction pad is not interfered with by a support surface slidably supported by the moving guide.

7. The disc brake for vehicle of claim 1 , wherein the pad clip is coated with polytetrafluoroethene (PTFE) to prevent corrosion.

8. The disc brake for vehicle of claim 1 , wherein the pad clip includes:
a support plate configured to support an outer surface of the outward protrusion; and
fixedly assembling parts configured to bend and extend from a plurality of positions of an edge of the support plate to cover and restrict a circumference of a side surface of the outward protrusion and fix the support plate to the outward protrusion,
wherein a first fixedly assembling part facing a sidewall of the caliper housing among the fixedly assembling parts is provided to provide elastic support between the support plate and the caliper housing.

9. The disc brake for vehicle of claim 8 , wherein:
the fixedly assembling parts extend from the edge of the support plate in a pressing direction of the friction pad pressing the disc;
the first fixedly assembling part facing the sidewall of the caliper housing extends to be opened outward from the support plate; and
an assembly guide configured to bend and extend toward an inside of the support plate in a direction perpendicular to the first fixedly assembling part is provided at one side of an end of the first fixedly assembling part facing the sidewall of the caliper housing.

10. The disc brake for vehicle of claim 9 , wherein a sliding guide provided to bend and extend toward the inside of the support plate in a moving direction of the friction pad to guide sliding of the caliper housing is provided at an end of the first fixedly assembling part facing the sidewall of the caliper housing in an extending direction of the first fixedly assembling part.

Assignees

• Mando Corp

Inventors

• Song Ki-Bae
• Oh Yun-Young

Classifications

• F16D65/18

  adapted for drawing members together {, e.g. for disc brakes} · CPC title

• F16D2121/04

  acting on a piston-type actuator, e.g. for liquid pressure · CPC title

• F16D2055/0016

  Brake calipers · CPC title

• F16D65/095

  Pivots or supporting members therefor · CPC title

• F16D65/0068

  Brake calipers · CPC title