KR20090043182A - Caliper brake - Google Patents

Caliper brake Download PDF

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Publication number
KR20090043182A
KR20090043182A KR1020070108894A KR20070108894A KR20090043182A KR 20090043182 A KR20090043182 A KR 20090043182A KR 1020070108894 A KR1020070108894 A KR 1020070108894A KR 20070108894 A KR20070108894 A KR 20070108894A KR 20090043182 A KR20090043182 A KR 20090043182A
Authority
KR
South Korea
Prior art keywords
piston
brake
pad plate
pad
caliper brake
Prior art date
Application number
KR1020070108894A
Other languages
Korean (ko)
Inventor
김종규
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 KR1020070108894A priority Critical patent/KR20090043182A/en
Publication of KR20090043182A publication Critical patent/KR20090043182A/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
    • 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
    • F16D55/226—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 in which the common actuating member is moved axially, e.g. floating caliper 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
    • F16D65/14—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
    • F16D2125/02—Fluid-pressure mechanisms
    • F16D2125/06—Pistons

Abstract

The present invention relates to a caliper brake. It is an object of the present invention to provide a caliper brake that increases the area of the piston front end that pressurizes the pad plate.

In order to achieve the above object, the caliper brake according to the present invention includes a disk, a pad plate having a brake pad attached thereto to brake and brake with both sides of the disk, and a piston for pressing the pad plate while reciprocating under hydraulic pressure. In the caliper brake, the piston includes a hollow portion therein, both ends of the piston is configured to be closed to increase the pressing area with the pad plate.

Through such a configuration, the present invention has an effect of improving the drag phenomenon by transmitting a large, uniform pressure to the brake pad.

Disc, brake pad, pad plate, piston, drag

Description

Caliper brake

The present invention relates to a caliper brake, and more particularly to a caliper brake that improves the contact area of a piston applying pressure to a pad plate.

In general, the brake system (Brake System) is an important device used to maintain the parking state of the vehicle at the same time to slow down or stop the driving vehicle.

Braking systems include a foot brake type main brake used mainly for driving, a parking brake type hand brake used for parking, and other auxiliary brakes.

Foot brakes can be divided into drum brakes and disc brakes. Disc brakes are generally used for the front wheels and drum brakes for the rear wheels. In luxury cars, both front and rear wheels use disc brakes. The disc brakes get the braking force by pressing the pads on both sides, and the drum brakes get the braking force by pressing the shoe from the inside.

Recently, as the automobile speeds up, a lot of disc brakes are used, which are less deteriorated by the heat dissipation and thermal deformation than the drum type. In particular, most of the front brakes use disc brakes. Here, a caliper brake is mounted on the outside of a rotating disk such as an automobile wheel and stops the rotation of the wheel by using the friction force between the brake pad and the disk.

1 is an exploded perspective view showing a caliper brake.

As shown in FIG. 1, the structure of the caliper brake can be broadly divided into a carrier C and a housing H. FIG. The carrier C fixes the caliper to the knuckle and allows sliding operation of the housing H. The carrier C and the housing H are connected by guide rod pins P.

2 is a cross-sectional view showing a state of braking the caliper brake.

3 is a cross-sectional view showing a state when the brake is released from the caliper brake.

2 and 3, FIG. 2 illustrates a state in which the piston 20 is hydraulically advanced to generate a braking force by bringing the brake pad 11 into close contact with the disk 10, and FIG. 3 shows the piston ( 20 is returned to its original state, and the brake pad 11 is spaced apart from the disk 10 at regular intervals. The sealing member 13 is provided on the outer circumferential surface of the piston 20 so that hydraulic pressure does not leak.

4 is a cross-sectional view showing an area where a piston of a conventional caliper brake contacts a pad plate.

As shown in FIG. 4, by advancing by the hydraulic pressure of the piston 20, the pad plate 12 to which the brake pad 11 is coupled is pressed. The shape of the front end face 21 of the piston 20 in contact with the pad plate 12 is annular.

As a result, even if hydraulic pressure is applied over the rear end surface 22 of the piston 20, the pressure transmitted to the brake pad 11 becomes much smaller. This is because the shape of the front end face 21 of the piston 20 is annular.

When the front end surface of the piston 20 formed in an annular shape presses the pass plate 12, a concentrated load is applied to a part of the brake pad 11. This causes a phenomenon of lifting between the brake pad 11 and the disk 10 in a region that is relatively unloaded. This causes a caliper brake drag and has a problem of adversely affecting caliper brake performance.

Accordingly, the present invention has been made to solve the above problems, and an object of the present invention is to provide a caliper brake for increasing the area of the front end portion of the piston for applying pressure to the pad plate.

In order to achieve the above object, the caliper brake according to the present invention includes a disk, a pad plate having a brake pad attached thereto to brake and brake with both sides of the disk, and a piston for pressing the pad plate while reciprocating under hydraulic pressure. In the caliper brake, the piston comprises a hollow portion therein, characterized in that both ends of the piston is sealed to increase the pressing area with the pad plate.

The piston may include a first piston for pressing the pad plate, and a second piston for directly transmitting hydraulic pressure, and the first piston and the second piston may be coupled to each other. do.

The piston of the caliper brake according to the present invention has an effect of improving the performance of the caliper brake by improving the drag phenomenon by transmitting a large, uniform pressure to the brake pad.

Hereinafter, a preferred embodiment of the caliper brake according to the present invention will be described in detail with reference to the accompanying drawings.

1 to 3 correspond to the same configuration as the caliper brake according to the present invention, a description of common parts will be omitted.

5 is an exploded perspective view illustrating a piston of a caliper brake according to the present invention.

As shown in FIG. 5, the piston 20 includes a first piston 31 for pressing the pad plate 12 and a second piston 32 for directly transmitting hydraulic pressure.

The first piston 31 is formed in a cylindrical shape. At this time, the portion in contact with the pad plate 12 (that is, the front end portion 33 of the piston 20) is formed to be sealed, and the portion to be engaged with the second piston 32 is formed to be open. As a result, since the front end 33 of the piston 20 is sealed, the area where the pad plate 12 and the piston 20 come into contact with each other can be increased.

This results in an increase in the pressure that the piston 20 delivers to the pad plate 12, which enables the piston 20 to provide a uniform pressure to the pad plate 12. The brake pad 11 is able to improve the drag phenomenon by rubbing the disk 10 strongly and uniformly.

The second piston 32 is formed in a cylindrical shape similarly to the first piston 31. At this time, the portion where the hydraulic pressure is transmitted (that is, the rear end 34 of the piston 20) is formed to be closed, and the portion to be coupled to the first piston 31 is formed to be open. Since the hydraulic pressure is directly transmitted to the rear end of the piston 20, a sealed structure will be essential.

Looking at the coupling structure of the first piston 31 and the second piston 32, an open portion of the first piston 31 is formed with a depression 35 recessed in a predetermined depth on the inner circumferential surface, the second piston 32 In the open portion of the) is formed a protrusion 36 protruding a predetermined height on the inner peripheral surface. The depression 35 and the protrusion 36 are formed to correspond to each other, so that the first piston 31 and the second piston 32 can be fitted to each other. As a method for completely fixing the first piston 31 and the second piston 32, there are various methods such as welding and fusion. Since this is obvious to those skilled in the art, detailed description thereof will be omitted.

6 is a cross-sectional view showing an area in which the piston of the caliper brake according to the present invention contacts the pad plate.

As shown in Figure 6, the piston 20 is provided with a hollow portion 37 to form a predetermined space therein. The front end 33 and the rear end 34 of the piston 20 are all formed in a sealed structure.

Hydraulic pressure transmitted from the master cylinder (not shown) is transmitted over the entire area of the rear end 34 of the piston 20. The piston 20 then presses the pad plate 12 while advancing toward the pad plate 12 side. At this time, the area of the front end portion 33 of the piston 20 in contact with the pad plate 12 corresponds to the entire sealed portion. Therefore, the pressure transmitted to the pad plate 12 increases, and the increased pressure is uniformly transmitted to the pad plate 12.

1 is an exploded perspective view showing a caliper brake.

2 is a cross-sectional view showing a state of braking the caliper brake.

3 is a cross-sectional view showing a state of braking release of a caliper brake.

4 is a cross-sectional view showing an area where a piston of a conventional caliper brake contacts a pad plate.

5 is an exploded perspective view showing a piston of the caliper brake according to the present invention.

6 is a cross-sectional view showing an area in which the piston of the caliper brake according to the present invention in contact with the pad plate.

* Description of symbols on the main parts of the drawings *

10: disc 11: brake pad

12: pad plate 13: sealing member

20: piston 31: first piston

32: second piston 33: shear

34: rear end 35: depression

36: protrusion 37: hollow part

Claims (2)

A caliper brake comprising a disk, a pad plate having a brake pad attached to brake both sides of the disk, and a piston for pressing the pad plate while reciprocating according to hydraulic pressure. The piston includes a hollow portion therein; Calibrator brake, characterized in that both ends of the piston is sealed to increase the pressing area with the pad plate. The method of claim 1, The piston includes a first piston for pressing the pad plate, and a second piston to which hydraulic pressure is directly transmitted. The first piston and the second piston is a caliper brake, characterized in that the coupling is provided to be possible.
KR1020070108894A 2007-10-29 2007-10-29 Caliper brake KR20090043182A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020070108894A KR20090043182A (en) 2007-10-29 2007-10-29 Caliper brake

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020070108894A KR20090043182A (en) 2007-10-29 2007-10-29 Caliper brake

Publications (1)

Publication Number Publication Date
KR20090043182A true KR20090043182A (en) 2009-05-06

Family

ID=40854063

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020070108894A KR20090043182A (en) 2007-10-29 2007-10-29 Caliper brake

Country Status (1)

Country Link
KR (1) KR20090043182A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160049263A (en) * 2014-10-27 2016-05-09 이래오토모티브시스템 주식회사 Piston of caliper brake for vehicle
KR20160061203A (en) * 2014-11-21 2016-05-31 이래오토모티브시스템 주식회사 Caliper brake for vehicle
KR20180060333A (en) * 2016-11-28 2018-06-07 주식회사 만도 Electric caliper brake
CN114483842A (en) * 2022-01-12 2022-05-13 黄山菲英汽车零部件有限公司 High-efficient brake drum of compensable wearing and tearing piece of stopping

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160049263A (en) * 2014-10-27 2016-05-09 이래오토모티브시스템 주식회사 Piston of caliper brake for vehicle
KR20160061203A (en) * 2014-11-21 2016-05-31 이래오토모티브시스템 주식회사 Caliper brake for vehicle
KR20180060333A (en) * 2016-11-28 2018-06-07 주식회사 만도 Electric caliper brake
CN114483842A (en) * 2022-01-12 2022-05-13 黄山菲英汽车零部件有限公司 High-efficient brake drum of compensable wearing and tearing piece of stopping
CN114483842B (en) * 2022-01-12 2024-03-12 黄山菲英汽车零部件有限公司 High-efficiency brake drum brake sheet capable of compensating abrasion

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A201 Request for examination
E601 Decision to refuse application