KR20110061251A - Disk brake - Google Patents

Disk brake Download PDF

Info

Publication number
KR20110061251A
KR20110061251A KR1020090117846A KR20090117846A KR20110061251A KR 20110061251 A KR20110061251 A KR 20110061251A KR 1020090117846 A KR1020090117846 A KR 1020090117846A KR 20090117846 A KR20090117846 A KR 20090117846A KR 20110061251 A KR20110061251 A KR 20110061251A
Authority
KR
South Korea
Prior art keywords
screw shaft
disk
wedge member
disc
friction pad
Prior art date
Application number
KR1020090117846A
Other languages
Korean (ko)
Inventor
전재형
Original Assignee
주식회사 만도
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 주식회사 만도 filed Critical 주식회사 만도
Priority to KR1020090117846A priority Critical patent/KR20110061251A/en
Publication of KR20110061251A publication Critical patent/KR20110061251A/en

Links

Images

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
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
    • F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
    • F16D55/224—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members
    • F16D55/225—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads
    • 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
    • F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
    • F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. 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
    • F16D2125/00—Components of actuators
    • F16D2125/18—Mechanical mechanisms
    • F16D2125/44—Mechanical mechanisms transmitting rotation
    • F16D2125/46—Rotating members in mutual engagement
    • F16D2125/52—Rotating members in mutual engagement with non-parallel stationary axes, e.g. worm or bevel gears

Landscapes

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

Abstract

PURPOSE: A wedge element and a pad are used so that it can prevent the wedge element moves to the disc direction and unwanted braking power generates. CONSTITUTION: A disk brake comprises a disc(10), inner and outer friction pads(11), a caliper housing, a wedge element(30), a supporting member(40), a screw shaft(61), and a drive motor. The disc revolves with wheels. The inner and outer friction pads are arranged in both sides of the disc. The caliper housing supports the outer friction pad. The wedge element is installed in the rear side of the inner friction pad and has an incline on the rear side. The supporting member includes the incline coping with the incline of the wedge element and is fixed to the caliper housing. The screw shaft is in arranged in the rotational direction of disc while being installed in the supporting member. The drive motor is installed in the supporting member for the drive of the screw shaft.

Description

Disk brake

The present invention relates to a disc brake to which an EWB (EWB) system for braking using a wedge member and a pad is applied.

Disc brake is a device that obtains a braking force by pressing the outer surface of the disk rotating with the wheel with a friction pad. Among such disc brakes, there is a method of pressing the friction pad in the direction of the disc by using a wedge member of the inclined slide type. The wedge member pushes the friction pad in the direction of the disk while being pushed along the inclined surface by the driving device.

The drive device for operating the wedge member includes a drive motor, a screw shaft coupled to the rotating shaft of the drive motor, and a pressing member coupled to the screw shaft to reciprocate by the operation of the drive motor and pressing the wedge member toward the disc. .

The disc brake is braked by pressing the friction pad in the direction of the disc while the driving motor is operated and the pressure member pushes the wedge member in the direction of the disc, and the friction pad and the disc come into contact with each other. To be

However, in the case of the wedge member, it is possible to move freely within the mechanical limits at the initial position where the braking force between the disc and the pad does not occur. Will be higher. In the worst case, there is a problem that the wedge member moves in the direction of the disc and may generate unwanted braking force.

One aspect of the present invention provides a disc brake for preventing a braking malfunction by including an elastic member between the wedge member and the support member.

Disc brake according to the spirit of the present invention is a disk that rotates with the wheel; and the inner and outer friction pads disposed on both sides of the disk; and the caliper housing for supporting the outer friction pad; and is installed on the back side of the inner friction pad A wedge member having an inclined surface formed on its rear surface; and a support member fixed to the caliper housing and having an inclined surface corresponding to the inclined surface of the wedge member; and a screw shaft installed on the support member and disposed in the rotational direction of the disk; And a drive motor installed on the support member for driving the screw shaft, the shaft being disposed so as to intersect the pressing direction of the screw shaft and the inner friction pad; and a worm provided on the shaft of the drive motor and the worm. A worm gear including a worm wheel mounted to the screw shaft; and coupled to the screw shaft and moved by rotation of the screw shaft. Standing the wedge member moving member for pushing in the direction of rotation of the disk; and a; elastic members for connecting together the wedge member and the support member and the.

In addition, the disc brake may use a spring as the elastic member.

In addition, the disc brake may use a synthetic resin having an elastic force as the elastic member.

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

1 is an exploded perspective view showing a disc brake for a vehicle according to the present invention. As shown in FIG. 1, a disc brake includes a disc 10 that rotates together with a wheel of a vehicle (not shown), and inner friction pads disposed on both sides of the disc 10 for friction braking of the disc 10. 11 and an outer friction pad 12 are provided. In addition, the caliper housing 20 and the wedge member 30 for pressing the two friction pads 11 and 12 toward the disk 10, the support member 40 for supporting the wedge member 30, and the inner friction pad 11 It includes a drive device 60 for operating the wedge member 30 to pressurize.

The inner and outer friction pads 11 and 12 may be supported by the carrier 50 fixed to the knuckle portion (not shown) of the vehicle so as to be able to pressurize both sides of the disk 10. The caliper housing 20 is also coupled to both sides of the carrier 20 through guide rods 21a and 21b coupled to both sides thereof. The guide rods 21a and 21b are coupled to the rod coupling portions 23a and 23b on both sides of the caliper housing 20 by fastening the fixing screws 22a and 22b. In addition, the caliper housing 20 is provided with a bent extension 24 at its end so as to press the outer surface of the outer friction pad 12 by advancing and supporting member 40 is coupled to the support member 40 on the opposite side 25 ). The support member 40 is fixed to the caliper housing 20 by fastening both sides of the upper fixing screw 26.

The wedge member 30 is disposed on the rear side of the inner friction pad 11, and the rear side has sloped surfaces 31 and 32 in the form of symmetry. In addition, the support member 40 supporting the wedge member 30 is provided with inclined surfaces 41 and 42 having a V-groove shape so as to correspond to the two inclined surfaces 31 and 32 of the wedge member 30. This is because when the wedge member 30 is pushed in the rotational direction of the disk 10, the inclined surfaces 31 and 32 of the wedge member 30 are pushed in contact with the inclined surfaces 41 and 42 of the support member 40, so that the inner friction pad ( 11) is to be pressed to the disk (10). The support plate 43 supporting the wedge member 30 is coupled to the lower portion of the support member 40 so that the wedge member 30 does not escape downward.

The drive device 60 for operating the wedge member 30 for the braking operation is installed in the support member 40, as shown in FIG. The drive device 60 is installed in the space 44 above the support member 40 and is arranged in the rotational direction of the disk 10 and the support member for driving the screw shaft 61. The drive motor 62 is installed in the lower portion of the 40 and the shaft is arranged so as to intersect the pressing direction of the screw shaft 61 and the inner friction pad 11, and the worm 63 provided on the shaft of the drive motor 62. And a worm gear including a worm wheel 64 mounted to the center of the screw shaft 61 to be coupled to the worm 63, and a wedge coupled to the screw shaft 61 and moved by the rotation of the screw shaft 61. And first and second moving members 65 and 66 for pushing the member 30 in the rotational direction of the disk 10.

Both ends of the screw shaft 61 are rotatably supported by shaft coupling members 67 respectively fixed to both sides of the space 44 above the support member 40. The first and second moving parts ashes 65 and 66 extend a predetermined length toward the wedge member 30 in a state in which they are coupled to the screw shafts 61 on both sides of the worm wheel 64, respectively. The wedge member 30 is provided with locking grooves 35a and 36a, respectively, so that the first and second moving members 65 and 66 can be caught, and the first and second guide members for guiding the operation of the wedge member 30. (35,36) are installed. This is because when the two moving members 65 and 66 are moved by the rotation of the screw shaft 61, the wedge member 30 is pushed in the rotational direction of the disk 10 and moved in the direction of the inner friction pad 11, thereby causing inner friction. The pad 11 is to be pressurized.

The drive motor 62 is coupled to the motor accommodating portion 46 provided under the support member 40 in a state where the upper portion thereof is accommodated, and the shaft is installed to penetrate the support member 40 up and down. The worm 63 of the worm gear is coupled to the shaft of the drive motor 62.

The elastic member 100 is connected to the wedge member 30 and the support member 40 of the disc brake, respectively.

At this time, a method for fixing the elastic member to the wedge member 30 to the wedge member inclined surface (31,32) and the support member inclined surface (41,42) by the method of coupling the groove, the wedge member inclined surface (31, 32) and a method of bonding to the support member inclined surfaces (41,42) using an adhesive or the like, a method of inserting bolts or hooks into the wedge member inclined surfaces (31,32) and the support member inclined surfaces (41,42) Etc. are applicable.

Although the elastic member 100 is shown as a spring for convenience in the accompanying drawings, any material capable of restoring the wedge member 30 to its initial position has a certain elasticity.

2 shows a braking release state of the vehicular disk brake according to the present invention, and FIG. 3 shows a braking state of the vehicular disk brake according to the present invention. 2 and 3, the worm 63 rotates by the operation of the drive motor 62, and the worm wheel 64 decelerates and rotates by the rotation of the worm 63. As shown in FIG. And the worm wheel 64 rotates the screw shaft 61 with a force as large as the deceleration. When the screw shaft 61 rotates, the wedge member 30 is pushed in the rotational direction of the disk 10 while the first and second moving members 65 and 66 move in the longitudinal direction of the screw shaft 61. . Therefore, the wedge member 30 is pushed in the inclined surface 31 provided on the back thereof in contact with the inclined surface 41 of the support member 40, so the inner friction pad 11 is pushed toward the disk 10 to brake the disk 10. do.

When the inner friction pad 11 comes into contact with the disk 10, the wedge member 30 tries to move in the rotation direction of the disk 10 by a force that the inner friction pad 11 moves in the rotation direction of the disc 10. As a result, self-binding occurs, which increases the braking force.

When the inner friction pad 11 presses the disk 10 as described above, the reaction force acts on the caliper housing 20 so that the caliper housing 20 moves in the opposite direction to the pressing direction of the inner friction pad 11 and thus the outer friction pad ( 12) is pressed against the disc 10. Thus, almost the same friction occurs on both sides of the disk 10.

When releasing braking, the drive motor 62 is operated in reverse and the screw shaft 61 is rotated in reverse to move the moving members 65 in opposite directions. Therefore, the pressurization of the inner friction pad 11 by the wedge member 30 is released.

Figure 4 is a simplified view showing the malfunction of the vehicle disk brake in a state in which the elastic member according to the present invention is not applied, Figure 5 is a simplified view of the vehicle disk brake applied to the elastic member according to the present invention.

In order for the wedge member 30 to move relative to the support member 40, the first and second moving members 65 and 66 move in the longitudinal direction of the screw shaft 61 in accordance with the rotation of the screw shaft 61. While in contact with the engaging grooves (35a, 36a) of the wedge member 30 is a structure that should be sliding in the rotational direction of the disk (10).

Therefore, as shown in FIG. 4, the wedge member 30 may not move in the longitudinal direction of the screw shaft 61 when the braking force is not applied or when the braking force is applied and then released, but in the direction of the disk 10. The inner friction pad 11 can be moved until it touches the disk 10.

In this case, as shown in Figure 5, the elastic member 100 is connected to the wedge member 30 and the support member 40 of the disc brake, respectively, to apply a constant elastic force in the direction of the disk 10, the wedge member 30 To prevent random movement.

In addition, since the wedge member is always returned to the predetermined initial position due to the elastic member, the disc brake is combined with the anti-braking system (ABS) and the electronic stability control (ESC) system to initiate the wedge member when frequent braking force is required. The time to move to position is saved, which shortens the braking response time and improves performance.

      1 is an exploded perspective view showing a disc brake for a vehicle according to the present invention.

      Figure 2 shows the brake release state of the vehicle disk brake according to the present invention.

      Figure 3 shows a braking state of the vehicular disk brake according to the present invention.

      4 is a simplified view showing a malfunction of the disc brake for a vehicle in a state where the elastic member according to the present invention is not applied.

      5 is a simplified view of a vehicle disk brake to which the elastic member according to the present invention is applied.

      Description of the Related Art [0002]

10: disc 11: inner friction pad

12: outer friction pad 20: caliper housing

30: wedge member 31,32: inclined surface of the wedge member

35, 36: guide member 40: support member

41, 42: inclined surface of the support member 43: support plate

46: motor accommodating part 50: carrier

60: drive unit 61: screw shaft

62: drive motor 63: worm

64: worm wheel 65: first moving member

66: second moving member 100: elastic member

Claims (3)

A disk rotating with the wheel; Inner and outer friction pads disposed on both sides of the disk; A caliper housing for supporting the outer friction pad; A wedge member installed on a rear side of the inner friction pad and having an inclined surface on its rear surface; A support member having an inclined surface corresponding to the inclined surface of the wedge member and fixed to the caliper housing; A screw shaft installed on the support member and disposed to extend in the rotational direction of the disk; A driving motor installed on the support member for driving the screw shaft, the shaft being disposed so as to intersect a pressing direction of the screw shaft and the inner friction pad; A worm gear including a worm provided on the shaft of the drive motor and a worm wheel mounted on the screw shaft to be coupled to the worm; A moving member coupled to the screw shaft and pushing the wedge member in a rotational direction of the disk while moving by the rotation of the screw shaft; And a resilient member connecting the wedge member and the support member to each other. The method of claim 1, Disc brake for a vehicle, characterized in that using the spring as the elastic member. The method of claim 1, Disc brake for a vehicle, characterized in that using a synthetic resin having an elastic force as the elastic member.
KR1020090117846A 2009-12-01 2009-12-01 Disk brake KR20110061251A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020090117846A KR20110061251A (en) 2009-12-01 2009-12-01 Disk brake

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020090117846A KR20110061251A (en) 2009-12-01 2009-12-01 Disk brake

Publications (1)

Publication Number Publication Date
KR20110061251A true KR20110061251A (en) 2011-06-09

Family

ID=44395757

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020090117846A KR20110061251A (en) 2009-12-01 2009-12-01 Disk brake

Country Status (1)

Country Link
KR (1) KR20110061251A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101681569B1 (en) * 2015-06-23 2016-12-01 재단법인대구경북과학기술원 electro mechanical brake
CN108799368A (en) * 2017-04-28 2018-11-13 廖志贤 For the caliper arrangement of parking brake

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101681569B1 (en) * 2015-06-23 2016-12-01 재단법인대구경북과학기술원 electro mechanical brake
CN108799368A (en) * 2017-04-28 2018-11-13 廖志贤 For the caliper arrangement of parking brake
CN108799368B (en) * 2017-04-28 2020-05-12 廖志贤 Caliper device capable of being used for hand brake

Similar Documents

Publication Publication Date Title
KR101317155B1 (en) Disk brake
JP6165549B2 (en) Electric brake for automobile
US8196715B2 (en) Disk brake for vehicle
KR20160133098A (en) Electric disk brake
KR20090050122A (en) Disk brake for vehicle
US20110127122A1 (en) Disc brake
KR20080057631A (en) Disk brake for vehicle
KR20100065604A (en) Disk brake for vehicle
KR101283438B1 (en) Disc brake for vehicle
KR20120025140A (en) Electromechanical brake apparatus
KR20110061251A (en) Disk brake
KR101208367B1 (en) Disk Brake For Vehicle
KR101405205B1 (en) Disc brake for vehicle
KR101045905B1 (en) Car Disc Brake
KR100771004B1 (en) Disc brake
KR20120104740A (en) Disc brake
KR100994009B1 (en) Disk Brake
KR101405201B1 (en) Disc brake for vehicle
KR100502515B1 (en) Disc brake and Pad shim
KR101274475B1 (en) Disc brake
KR20130048345A (en) Disc brake
KR100808478B1 (en) Disc brake
KR20110064766A (en) Disk brake
KR20140066307A (en) Disk brake
KR20130068959A (en) Ball in ramp caliper type parking brake device

Legal Events

Date Code Title Description
A201 Request for examination
E601 Decision to refuse application