KR20110043848A - Disc brake for vehicle - Google Patents

Disc brake for vehicle Download PDF

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Publication number
KR20110043848A
KR20110043848A KR1020090100560A KR20090100560A KR20110043848A KR 20110043848 A KR20110043848 A KR 20110043848A KR 1020090100560 A KR1020090100560 A KR 1020090100560A KR 20090100560 A KR20090100560 A KR 20090100560A KR 20110043848 A KR20110043848 A KR 20110043848A
Authority
KR
South Korea
Prior art keywords
brake
rotor
cover
vehicle
brake rotor
Prior art date
Application number
KR1020090100560A
Other languages
Korean (ko)
Inventor
이재영
이춘수
Original Assignee
현대자동차주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 현대자동차주식회사 filed Critical 현대자동차주식회사
Priority to KR1020090100560A priority Critical patent/KR20110043848A/en
Publication of KR20110043848A publication Critical patent/KR20110043848A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/005—Components of axially engaging brakes not otherwise provided for
    • F16D65/0081—Brake covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
    • F16D65/095—Pivots or supporting members therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/12—Discs; Drums for disc brakes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D2065/13—Parts or details of discs or drums
    • F16D2065/1304—Structure
    • F16D2065/1336—Structure integral part of vehicle wheel

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

PURPOSE: A disk brake for a vehicle is provided to prevent rust, occurred when a frictional flange is corroded, from being exposed to the outside through the exposure hole of a wheel. CONSTITUTION: A disk brake for a vehicle comprises a brake rotor(10), a caliper(40), and a cover member(30). The brake rotor is rotated with a wheel(50). The brake rotor is composed of a rotor body(20) and a frictional flange(25) which is outward bent from the outer surface of the rotor body. The caliper is fixed to a vehicle body and brakes the brake rotor so that the frictional flange can be inserted between a pair of brake pads(43,44). The cover member is installed between the wheel and the brake rotor and covers rust occurred in the brake rotor.

Description

Car Disc Brake {DISC BRAKE FOR VEHICLE}

The present invention relates to a disc brake for a vehicle, and more particularly, to a disc brake for a vehicle that can be improved in appearance since rust generated in the brake rotor is not visible from the outside.

In general, a brake system of a vehicle includes a brake pedal, a master cylinder for converting the pedal force input into the brake pedal into a hydraulic pressure, a booster for boosting the hydraulic pressure generated in the master cylinder, and a hydraulic pressure delivered from the booster to finally receive a braking force. It is composed of a brake body for generating a.

The brake body is divided into a disc brake using friction between the disc rotor and the brake pad and a drum brake using friction between the drum and the shoe according to the friction generating method.

Among these, the disc brake 101, as shown in Figure 1, the brake rotor 110 that rotates in conjunction with the wheel 150, and the caliper fixed to the vehicle body to apply a braking force to the brake rotor 110 ( 140).

The brake rotor 110 is mounted to the hub 115 and rotates at the same time as the wheel 150 and is bent outwardly from the outer circumferential surface of the rotor body 120 to be friction braked by the caliper 140. Consisting of a friction flange 125.

The caliper 140 is formed with a cylinder 141 for forming the hydraulic pressure supplied from the master cylinder, and the cylinder 141 is inserted with a piston 142 which is linearly moved by the hydraulic pressure. In addition, the caliper 140 is provided with a pair of brake pads 143 and 144 for pressing both sides of the friction flange 125, and the pair of brake pads 143 and 144 are pad plates 143a and 144a, respectively. Is supported).

According to this configuration, when the driver presses the brake pedal and the hydraulic pressure generated in the master cylinder is supplied to the cylinder 141, as a result, the piston 142 is advanced in the A 'direction, so that the right brake pad 144 has a friction flange 125 ) Is pressed in the A 'direction, and the cylinder is moved in the B' direction opposite to the movement of the piston 142, so that the braking is performed by the left brake pad 143 pressing the friction flange 125 in the B 'direction. have.

By the way, in such a conventional vehicle disc brake 101, the friction flange 125 in frictional contact with the caliper 140 is exposed to the outside of the rotor body 120, the friction flange 125 is corroded to generate rust In this case, since the rust is easily seen from the outside through the exposed hole 51 (see FIG. 2) of the wheel 150, the appearance is deteriorated.

Accordingly, it is an object of the present invention to provide a disc brake for a vehicle in which rust formed on the friction flange of the brake rotor, which is rubbed with the caliper, is not visible from the outside, so that the appearance can be improved.

According to the disc brake for a vehicle of the present invention, the rotor rotates in conjunction with a wheel, the rotor body, and a brake rotor consisting of a friction flange bent outward from the outer peripheral surface of the rotor body; A caliper fixed to the vehicle body so that the friction flange is inserted between the pair of brake pads to brake the brake rotor; A cover member is provided between the wheel and the brake rotor to cover rust generated in the brake rotor.

The cover member may include a cover plate having a plurality of air passage holes formed on a plate surface thereof; It is preferable that the cover plate is integrally formed in the center of the cover plate and configured as a coupling piece for coupling the cover plate to the wheel and the brake rotor.

At this time, the cover member is preferably made of any one of a stainless steel material and an aluminum material which is relatively excellent in corrosion resistance.

Alternatively, the cover member is provided with a plurality of spokes (spoke) in the radial direction, the cover frame formed with an air passage between the adjacent spokes; A coupling piece integrally formed at the center of the cover frame to couple the cover frame to the wheel and the brake rotor; The coupling piece may have an annular shape so as to pass through and attached to the cover frame to cover the brake rotor.

At this time, the mesh portion is preferably a fabric composed of at least one of nylon fibers, polyester fibers, rayon fibers, polyacrylonitrile fibers, aramid fibers.

Preferably, the cover frame and the coupling piece are integrally manufactured with any one of stainless steel and aluminum, which are relatively excellent in corrosion resistance.

The thickness of the cover member is preferably 0.1mm ~ 1.0mm.

As described above, according to the present invention, since the rust generated in the brake rotor is not visible from the outside, a vehicle disc brake is provided which can be improved in appearance.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Prior to the description, in various embodiments, components having the same configuration will be representatively described in the first embodiment using the same reference numerals, and in other embodiments, only the configuration different from the first embodiment will be described.

As shown in FIGS. 2 and 3, the vehicular disk brake 1 according to the present invention may apply brake power to the brake rotor 10 that rotates in conjunction with the wheel 50 and the brake rotor 10. It is composed of a caliper 40 fixed to the vehicle body, and a cover member 30 installed between the wheel 50 and the brake rotor 10 to cover rust generated in the brake rotor 10.

The brake rotor 10 is generally made of gray cast iron, and is mounted to the hub 15 to be rotated at the same time as the wheel 50, and bent outwardly from the outer circumferential surface of the rotor body 20 to have a caliper ( And a friction flange 25 which is friction braked by 40.

The friction flange 25 is in frictional contact with the pair of brake pads 43 and 44 in a state inserted between the pair of brake pads 43 and 44 to be described later provided in the caliper 40.

The caliper 40 is to stop the rotation of the rotating brake rotor 10 by providing a friction force to the friction flange 25, is located outside the brake rotor 10 is fixed to the vehicle body.

At this time, the caliper 40 is provided with the cylinder 41 for forming the oil_pressure | hydraulic supplied from a master cylinder, and the cylinder 42 is inserted with the piston 42 which linearly moves by oil_pressure | hydraulic. In addition, the caliper 40 is provided with a pair of brake pads 43 and 44 for pressing both sides of the friction flange 25, and the pair of brake pads 43 and 44 are pad plates 43a and 44a, respectively. Is supported).

According to this configuration, when the driver presses the brake pedal and the hydraulic pressure generated in the master cylinder is supplied to the cylinder 41, as a result, the piston 42 moves forward in the A direction so that the right brake pad 44 has a friction flange 25. Is pressed in the A direction, and the cylinder may be braked by the left brake pad 43 pressing the friction flange 25 in the B direction while the cylinder moves in the B direction opposite to the movement of the piston 42.

As such, as the braking is performed, the friction flange 25 is corroded and rust is generated in the brake rotor 10. Since the rust is easily seen from the outside through the exposed hole 51 of the wheel 50, the appearance may be degraded. In order to prevent this, in the present invention, the cover member 30 is installed.

As shown in FIG. 4, the cover member 30 is integrally formed at the center of the cover plate 31 and the cover plate 31 having a plate shape, and the cover plate 31 is formed by the wheel 50 and the brake rotor. It consists of a coupling piece 32 for engaging with (10).

Here, the size of the cover member 30 is larger than the diameter of the brake rotor 10 so that the brake rotor 10 can be sufficiently covered, can be mounted on the wheel 50 and the air flows smoothly into the brake rotor 10 side. It may be smaller than the inner diameter of the wheel 50.

In addition, the cover member 30 is made of any one of stainless steel and aluminum, which are relatively excellent in corrosion resistance, it is preferable that rust does not occur even if used for a long time.

At this time, it is preferable that a plurality of air passage holes 31a are formed through the plate surface of the cover plate 31 because the brake system is operated so that the friction flange 25 has a pair of brake pads 43 and 44. ) Is generated when friction is generated, since heat can be effectively released by the air introduced from the air passage hole 31a. Here, the air passage hole 31a preferably has an area of 1 mm 2 to 100 mm 2 , but less than 1 mm 2 does not facilitate the inflow of air, and if it exceeds 100 mm 2 , the rust of the brake rotor 10 may be rusted. It is preferable that it is the said range because it may be revealed to the outside. Here, the shape, number, and position of the air passage hole 31a is not limited thereto, and may be variously changed.

The stud ball 32a through which the stud 55 for coupling the brake rotor 10 and the wheel 50 to each other is passed through the coupling piece 32 along the circumferential direction.

On the other hand, the cover member 230 may be configured as shown in FIG. That is, the cover member 230 of the disc brake according to the second embodiment is integrally formed at the center of the cover frame 231 and the cover frame 231 to cover the cover frame 231 with the wheel 50 and the brake rotor ( 10 is composed of a coupling piece 232 for coupling to the mesh portion 233 is formed in an annular shape attached to the cover frame 231.

The cover frame 231 has a plurality of spots 231b formed in the radial direction about the coupling piece 232, and serves as a frame for attaching the mesh portion 233. At this time, between the spokes 231b adjacent to each other, the air passage portion 231a is formed by being opened, rather than being blocked. As described above, as the air passage part 231a is formed in the cover frame 231, heat generated during braking by air introduced from the air passage hole 231a can be effectively released.

Here, the size of the cover frame 231 is larger than the diameter of the brake rotor 10 so that the brake rotor 10 can be sufficiently covered, can be mounted on the wheel 50 and the air flows smoothly into the brake rotor 10 side. It may be smaller than the inner diameter of the wheel 50.

The stud ball 232a through which the stud 55 for coupling the brake rotor 10 and the wheel 50 to each other is passed through the coupling piece 232 along the circumferential direction.

In this case, the cover frame 231 and the coupling piece 232 is made of any one of stainless steel and aluminum, which are relatively excellent in corrosion resistance, it is preferable that rust does not occur even if used for a long time.

The mesh portion 233 is formed in an annular shape so that the coupling piece 232 passes through and is attached to the cover frame 231, where the size of the mesh portion 233 is such that the brake rotor 10 may be covered with a diameter. Of course it should have. As such, as the mesh-shaped mesh unit 233 is provided, there is an advantage that air can be smoothly introduced into the brake rotor 10. At this time, the width of the hole formed in the mesh portion 233 is preferably 1 mm 2 ~ 100 mm 2 , if less than 1 mm 2 is not easy to inflow of air, if it exceeds 100 mm 2 brake rotor (10) It is preferable to be in the above range because rust of) may be exposed to the outside.

Here, the mesh portion 233 is made of a fabric composed of at least one of nylon fibers, polyester fibers, rayon fibers, polyacrylonitrile fibers, aramid fibers, the shape, number, location of the holes of the mesh portion 233 Of course, may be variously changed as shown in (a) to (e) of FIG.

In addition, the thickness of the cover members 30 and 230 in the first and second embodiments is preferably 0.1 mm to 1.0 mm, but less than 0.1 mm, the rigidity is weak enough to easily deform to external impact and 1.0 mm If it exceeds, the weight is excessively increased, so that manufacturing cost is increased and workability is deteriorated.

As such, according to the present invention, since the cover members 30 and 230 are provided between the wheel 50 and the brake rotor 10, when the friction flange 25 is corroded and rust occurs, it cannot be recognized from the outside. There is an advantage that the appearance can be improved.

1 is a cross-sectional view showing a conventional disc brake for a vehicle.

Figure 2 is a front perspective view showing a state in which the vehicle disk brake according to the first embodiment of the present invention coupled to the wheel.

3 is a side cross-sectional view of FIG.

4 is a plan view schematically showing the cover member of FIG.

5 is a plan view schematically showing a cover member of a vehicular disk brake according to a second embodiment of the present invention;

6A to 6E are views illustrating various examples of the mesh unit of FIG. 5.

* Explanation of symbols for the main parts of the drawings

1: disc brake 10: brake rotor

20: rotor body 25: friction flange

30, 230: cover member 40: caliper

42: piston 43, 44: brake pad

Claims (7)

A brake rotor which rotates in association with a wheel, and comprises a rotor body and a friction flange bent outward from an outer circumferential surface of the rotor body; A caliper fixed to the vehicle body so that the friction flange is inserted between the pair of brake pads to brake the brake rotor; And a cover member installed between the wheel and the brake rotor to cover rust generated in the brake rotor. The method of claim 1, wherein the cover member A cover plate having a plurality of air passage holes formed in the plate surface; The disc brake for a vehicle, which is integrally formed at the center of the cover plate, and configured as a coupling piece for coupling the cover plate to the wheel and the brake rotor. The method according to claim 2, The cover member is a vehicle disk brake, characterized in that made of any one of stainless steel material and aluminum material which is relatively excellent in corrosion resistance. The method of claim 1, wherein the cover member A cover frame provided with a plurality of spokes in a radial direction and having an air passage between the spokes adjacent to each other; A coupling piece integrally formed at the center of the cover frame to couple the cover frame to the wheel and the brake rotor; And a mesh portion formed in an annular shape so that the coupling piece passes and attached to the cover frame to cover the brake rotor. The method according to claim 4, The mesh portion is a vehicle disc brake, characterized in that the fabric consisting of at least one of nylon fibers, polyester fibers, rayon fibers, polyacrylonitrile fibers, aramid fibers. The method according to claim 4, The cover frame and the coupling piece is a vehicle disc brake, characterized in that integrally manufactured with any one of stainless steel material and aluminum material having excellent corrosion resistance. The method according to claim 1, The disc brake of the vehicle, characterized in that the thickness of 0.1mm ~ 1.0mm.
KR1020090100560A 2009-10-22 2009-10-22 Disc brake for vehicle KR20110043848A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020090100560A KR20110043848A (en) 2009-10-22 2009-10-22 Disc brake for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020090100560A KR20110043848A (en) 2009-10-22 2009-10-22 Disc brake for vehicle

Publications (1)

Publication Number Publication Date
KR20110043848A true KR20110043848A (en) 2011-04-28

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Application Number Title Priority Date Filing Date
KR1020090100560A KR20110043848A (en) 2009-10-22 2009-10-22 Disc brake for vehicle

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11505172B2 (en) 2018-11-20 2022-11-22 Hyundai Motor Company Apparatus and method for removing rust on a brake disk

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11505172B2 (en) 2018-11-20 2022-11-22 Hyundai Motor Company Apparatus and method for removing rust on a brake disk

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E601 Decision to refuse application