WO2014021646A1 - 가이드핀을 갖는 차량용 디스크 브레이크 - Google Patents
가이드핀을 갖는 차량용 디스크 브레이크 Download PDFInfo
- Publication number
- WO2014021646A1 WO2014021646A1 PCT/KR2013/006919 KR2013006919W WO2014021646A1 WO 2014021646 A1 WO2014021646 A1 WO 2014021646A1 KR 2013006919 W KR2013006919 W KR 2013006919W WO 2014021646 A1 WO2014021646 A1 WO 2014021646A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- piston
- lever
- gear
- brake
- thrust
- Prior art date
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Classifications
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- 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
- F16D65/38—Slack adjusters
- F16D65/40—Slack adjusters mechanical
- F16D65/52—Slack adjusters mechanical self-acting in one direction for adjusting excessive play
- F16D65/56—Slack adjusters mechanical self-acting in one direction for adjusting excessive play with screw-thread and nut
- F16D65/567—Slack adjusters mechanical self-acting in one direction for adjusting excessive play with screw-thread and nut for mounting on a disc brake
- F16D65/568—Slack adjusters mechanical self-acting in one direction for adjusting excessive play with screw-thread and nut for mounting on a disc brake for synchronous adjustment of actuators arranged in parallel
-
- 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
- F16D2121/00—Type of actuator operation force
- F16D2121/14—Mechanical
-
- 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
- F16D2125/20—Mechanical mechanisms converting rotation to linear movement or vice versa
- F16D2125/22—Mechanical mechanisms converting rotation to linear movement or vice versa acting transversely to the axis of rotation
- F16D2125/28—Cams; Levers with cams
-
- 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
- F16D2125/20—Mechanical mechanisms converting rotation to linear movement or vice versa
- F16D2125/22—Mechanical mechanisms converting rotation to linear movement or vice versa acting transversely to the axis of rotation
- F16D2125/28—Cams; Levers with cams
- F16D2125/32—Cams; Levers with cams acting on one cam follower
-
- 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
- F16D2125/58—Mechanical mechanisms transmitting linear movement
- F16D2125/64—Levers
Definitions
- the present invention relates to a disc brake for a vehicle, and more particularly to a disc brake having an adjustment system with a simple structure and easy to manufacture.
- Wear of the brake pads or brake discs increases the clearance between the brake pads and the brake discs.
- the brake actuator must travel longer distances to apply the brake. That is, there is a larger gap when applying the brake, which makes the effect of the brake smaller.
- an adjuster is needed to move the brake pad closer to the brake disc. This adjustment ensures a constant amount of movement of the actuator even if the brake pads are worn.
- EP97122675 discloses a structure that prevents the adjuster (adjusting spindle) from escaping toward the disc. This structure needs to be implemented without increasing structural complexity.
- an object of the present invention is to provide an adjuster having a simple structure and easy manufacturing and a disc brake using the same.
- the present invention provides a disc brake for a vehicle, the brake pad being rotatably mounted about a lever shaft, and the brake pad being pressed in parallel with a thrust shaft perpendicular to the lever shaft by rotation of the lever.
- a thrust assembly wherein the thrust assembly is rotated about the thrust axis while moving parallel to the thrust axis by the rotation of the lever, and the piston gear and the screw outside the piston gear. It is characterized in that it has a piston coupled, a traverse for guiding the piston parallel to the thrust axis on the outside of the piston, and a guide pin to prevent the piston from rotating relative to the traverse.
- the guide pin is coupled to the piston, the traverse has a guide groove parallel to the thrust axis, the guide pin is fastened to the guide groove.
- the guide groove is closed at one end of the brake pad side and is formed to have a length for adjustment.
- the piston gear is also screwed with the lever.
- the thrust assembly has at least two piston gears, the at least two piston gears being synchronized by gear engagement.
- a tappet coupled to one end of the brake pad side from the piston is further provided to press the brake pad.
- the present invention also provides an adjustment system for a vehicle disc brake including a lever, comprising: a piston gear that rotates by rotation of the lever, a piston that is screwed to the piston gear from the outside of the piston gear, and the piston. Traverse for guiding the piston from the outside of the, and characterized in that it has a guide pin to prevent the piston from rotating with respect to the traverse.
- the adjuster according to the present invention having the above-mentioned features is simple in structure and easy to manufacture.
- the disc brake according to the present invention prevents the adjuster from moving toward the brake disc by stopping the movement of the adjuster for adjusting the gap at some point.
- FIG. 1 is a cross-sectional view of a disc brake according to an embodiment of the present invention.
- FIG. 2 is a view for explaining the gear connection of the thrust assembly 14 shown in FIG.
- FIG. 3 is a perspective view from below of a disc brake according to an embodiment of the present invention
- FIG. 4 is a perspective view from above.
- 5 is a view for explaining the fastening of the guide groove 48 and the guide pin 26.
- the disc brake 10 has a lever 12 and a thrust assembly 14.
- the housing 11 receives the lever 12 and the thrust assembly 14 and bears the load generated by them.
- the lever 12 When the driver activates the brake, the input load (indicated by L and arrow) is transmitted to the lever 12.
- the lever 12 is rotatably supported by the bearing 18.
- the lever 12 rotates about a lever axis (not shown). That is, the lever 12 rotates clockwise about the lever axis in FIG. 1.
- the base of the lever 12 has a recess 19 that can hold the cylindrical roller 16.
- the roller 16 has a rotation center different from the rotation center of the lever 12. That is, the roller 16 moves in an arc shape with respect to the lever axis.
- the input load L causes the lever 12 to rotate about the lever axis and the roller 16 to move in an arc with respect to the lever axis.
- This eccentric movement of the roller 16 is connected to one or more piston gears 20 to apply a load to the thrust assembly 14, which load the thrust assembly 14 to the housing 11. While being guided to move vertically in a direction away from the lever (12).
- This movement defines a thrust axis 30 perpendicular to the roller axis and the lever axis. Movement along the thrust shaft 30 of the thrust assembly 14 is connected to the brake pad 42 via the back flake 40. As a result, the brake pad 42 presses the brake disc.
- the return spring 44 causes the thrust assembly 14 to return to its original position.
- the lever 12 and the roller 16 also return to their original positions.
- the return spring 44 allows the thrust assembly 14, the lever 12, and the roller 16 to remain in place when the input load L is not applied.
- the thrust assembly 14 is guided by a housing 11 attached to the carrier 46.
- the thrust assembly 14 has a piston gear 20, a piston 22, a traverse 24, and a tappet 28.
- the piston gear 20 is connected to the lever 12 via the gear connection shown in FIG. 2.
- the piston 22 is screwed with the piston gear 20 at the outside of the piston gear 20.
- the traverse 24 functions to guide the piston 22 from the outside of the piston 22. Since the rotation of the piston 22 is limited by the traverse 24, when the piston gear 20 rotates, the length of the thrust assembly 14 in the direction of the thrust axis 30 is changed.
- Guide pin 26 prevents piston 22 from rotating relative to traverse 24.
- the guide pin 26 is coupled to the piston 22 and the guide groove 48 is formed in the traverse 24.
- the guide pin may be coupled to the traverse 24 and the guide groove may be formed in the piston 22.
- the piston 22 is coupled to a tappet 28 which presses the brake pad 42 on the opposite side of the lever 12.
- FIG. 2 is a view for explaining the gear connection of the thrust assembly 14 shown in FIG.
- the adjuster gear 36, the sensor gear 38, the manual adjuster gear 32, and the piston gears 20a, 20b rotate about an axis parallel to the thrust shaft 30.
- the adjuster shaft 34 is engaged with the finger portion 50 of the lever 12.
- the adjuster shaft 34 has a groove 51 engaged with the finger portion 50.
- the adjuster gear 36 is coaxially coupled with the adjuster shaft 34.
- the piston gear 20a is engaged with the adjuster gear 36 via the sensor gear 38 provided at the sensor 37 position.
- the piston gear 20b is engaged with the adjuster gear 36 via the manual adjuster gear 32 installed at the position of the manual adjuster 31.
- the adjuster shaft 34 engaged with the finger portion 50 of the lever rotates counterclockwise.
- the adjuster gear 36 is rotated counterclockwise in the same way as the adjuster shaft 34 because the adjuster gear 36 is coupled to the same shaft as the adjuster shaft 34.
- the sensor gear 38 rotates clockwise and the right piston gear 20a rotates counterclockwise.
- the manual adjuster gear 32 rotates clockwise and the left piston gear 20b rotates clockwise. In this way, the rotational force of the lever 12 is transmitted simultaneously to the two piston gears 20a and 20b.
- FIG. 3 is a perspective view from below of a disc brake according to an embodiment of the present invention
- FIG. 4 is a perspective view from above
- 5 is a view for explaining the fastening of the guide groove 48 and the guide pin 26.
- the tappet 28 connected to one end of the piston 22 is in close contact with the back plate 40.
- the brake pad 42 is mounted to the back plate 40.
- the lever 12 rotates about the lever shaft (not shown) by air pressure or the like, the brake pad 42 presses both sides of the brake disc (not shown).
- the lever 12 and the thrust assembly 14 return to their positions by the action of a return spring 44.
- the carrier 46 is coupled with the housing 11 and receives the back plate 40 and the brake pad 42.
- the traverse 24 has a guide groove 48 that is engaged with the guide pin 26.
- the guide groove 48 is formed by the length necessary for adjusting to the thrust axis 30 in parallel.
- the guide groove 48 is blocked at one end of the brake pad 42 so that the piston 22 does not fall into the brake disc (not shown) by the adjusting action.
- FIGS. 1 to 5 An operation of the disc brake according to the present embodiment will be described with reference to FIGS. 1 to 5.
- the lever 12 rotates about the lever axis.
- the lever shaft and the roller shaft 17 are different and the rotation of the lever 12 causes the roller 16 to press the thrust assembly 14 parallel to the thrust shaft 30.
- the tappet 28 coupled to the brake disc side presses the back plate 40 to bring the brake pad 42 into close contact with the brake disc (not shown), thereby providing a braking action.
- the brake pad 42 When the braking action is repeated, the brake pad 42 is worn, thereby widening the gap between the brake pad 42 and the brake disc. Therefore, in order to perform a constant braking action against the application of air pressure and the like despite the wear of the brake pad 42, the length of the thrust assembly 14 is increased according to the wear of the brake pad 42, thereby causing the brake pad 42 and the brake disc. The gap should be narrowed.
- the adjust shaft 34 rotates when the lever 12 rotates.
- the adjuster shaft 34 rotates the adjuster gear 36.
- the adjuster gear 36 rotates the piston gear 20a via the sensor gear 38 and rotates the piston gear 20b via the manual adjuster gear 32. Through this gear connection the two piston gears 20a, 20b are synchronized.
- the piston gears 20, 20a, 20b and the piston 22 are screwed together, and the guide pin 26 coupled to the piston 22 is fastened to the guide groove 48 formed in the traverse 24.
- the rotational movement of the gears 20, 20a, 20b is converted to the linear movement of the piston 22.
- the piston 22 moves toward the brake disc relative to the piston gears 20, 20a, 20b.
- the total length of the thrust assembly 14 is long, so that the widened gap between the brake pad 42 and the brake disk resulting from the wear of the brake pad 42 or the brake disk is narrowed.
- a constant braking force is generated for an action such as air pressure.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
Description
Claims (6)
- 레버 축에 대해 회전 가능하게 장착되는 레버와,
상기 레버의 회전에 의해 상기 레버 축에 수직한 쓰러스트 축에 평행하게 브레이크 패드를 압착하는 쓰러스트 어셈블리를 구비하며,
상기 쓰러스트 어셈블리는
상기 레버의 회전에 의해 상기 쓰러스트 축에 평행하게 이동하면서 상기 쓰러스트 축에 대해 회전하는 피스톤 기어와,
상기 피스톤 기어의 외부에서 상기 피스톤 기어와 나사 결합되어 있는 피스톤과,
상기 피스톤의 외부에서 상기 쓰러스트 축에 평행하게 상기 피스톤을 가이드하는 트래버스와,
상기 피스톤이 상기 트래버스에 대해 회전하지 못하도록 하는 가이드핀을
구비하는 것을 특징으로 하는 차량용 디스크 브레이크.
- 제 1 항에 있어서,
상기 가이드핀은 상기 피스톤에 결합되며, 상기 트래버스는 상기 쓰러스트 축에 평행한 가이드홈을 구비하며, 상기 가이드핀은 상기 가이드홈에 체결되는 것을 특징으로 하는 차량용 디스크 브레이크.
- 제 2 항에 있어서,
상기 가이드홈은 어드저스트먼트를 위한 길이로 형성되는 것을 특징으로 하는 차량용 디스크 브레이크.
- 제 1 항에 있어서,
상기 피스톤 기어는 상기 레버와 나사 결합되어 있는 것을 특징으로 하는 차량용 디스크 브레이크.
- 제 1 항에 있어서,
상기 쓰러스트 어셈블리는 적어도 두 개의 피스톤 기어를 구비하며, 상기 적어도 두 개의 피스톤 기어는 기어 결합에 의해 동기화되어 있는 것을 특징으로 하는 차량용 디스크 브레이크.
- 레버를 구비하는 차량용 디스크 브레이크의 어드저스트먼트 시스템에 있어서,
상기 레버의 회전에 의해 회전하는 피스톤 기어와,
상기 피스톤 기어의 외부에서 상기 피스톤 기어와 나사 결합되어 있는 피스톤과,
상기 피스톤의 외부에서 상기 피스톤을 가이드하는 트래버스와,
상기 피스톤이 상기 트래버스에 대해 회전하지 못하도록 하는 가이드핀을
구비하는 것을 특징으로 하는 차량용 디스크 브레이크용 어드저스트먼트 시스템.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201380036139.5A CN104428556B (zh) | 2012-07-31 | 2013-07-31 | 具有导向销的车辆用盘式制动器 |
DE112013003793.9T DE112013003793B4 (de) | 2012-07-31 | 2013-07-31 | Scheibenbremse mit Führungsstift für ein Fahrzeug |
JP2015525361A JP5944583B2 (ja) | 2012-07-31 | 2013-07-31 | ガイドピンを有する車両用ディスクブレーキ |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2012-0083663 | 2012-07-31 | ||
KR20120083663 | 2012-07-31 |
Publications (1)
Publication Number | Publication Date |
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WO2014021646A1 true WO2014021646A1 (ko) | 2014-02-06 |
Family
ID=50028258
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/KR2013/006919 WO2014021646A1 (ko) | 2012-07-31 | 2013-07-31 | 가이드핀을 갖는 차량용 디스크 브레이크 |
Country Status (5)
Country | Link |
---|---|
JP (1) | JP5944583B2 (ko) |
KR (1) | KR20140017461A (ko) |
CN (1) | CN104428556B (ko) |
DE (1) | DE112013003793B4 (ko) |
WO (1) | WO2014021646A1 (ko) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102015114547B4 (de) * | 2015-09-01 | 2019-05-29 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Scheibenbremse für ein Nutzfahrzeug |
JP7406403B2 (ja) | 2020-02-28 | 2023-12-27 | 浜松ホトニクス株式会社 | 眼底画像処理方法、眼底画像処理装置、眼底画像処理プログラム、及びそのプログラムを記録する記録媒体 |
Citations (5)
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JPH07158671A (ja) * | 1993-10-13 | 1995-06-20 | Knorr Bremse Ag | 空圧作動式のディスクブレーキ |
US5515949A (en) * | 1993-05-04 | 1996-05-14 | Knorr Bremse Ag | Pneumatically operated disk brake |
KR20050064832A (ko) * | 2003-12-24 | 2005-06-29 | 두산인프라코어 주식회사 | 브레이크 디스크 간극 조절 장치 |
US6962244B2 (en) * | 2000-05-31 | 2005-11-08 | Haldex Brake Products Ab | Brake mechanism and a method of controlling force amplification |
US20050269171A1 (en) * | 2003-01-31 | 2005-12-08 | Arvinmeritor Technology, Llc | Rapid take up and vibration proof adjuster mechanism |
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JP2549842Y2 (ja) * | 1991-10-23 | 1997-10-08 | 豊生ブレーキ工業株式会社 | パーキングブレーキ機構付きディスクブレーキ |
DE4204307A1 (de) | 1992-02-13 | 1993-08-19 | Knorr Bremse Ag | Drehantrieb fuer eine stellspindel einer scheibenbremse fuer fahrzeuge |
DE19700039A1 (de) | 1997-01-02 | 1998-07-09 | Perrot Bremsen Gmbh | Backenbremse |
JP3822953B2 (ja) * | 1997-07-04 | 2006-09-20 | 曙ブレーキ工業株式会社 | ディスクブレーキ装置のアジャスタ |
GB9716363D0 (en) | 1997-08-02 | 1997-10-08 | Lucas Ind Plc | Improvements relating to disc brakes |
AU5578698A (en) | 1998-01-20 | 1999-08-02 | Skf Industrial Trading & Development Company B.V. | Modular actuator, and brake calliper comprising such actuator |
US6955246B2 (en) | 2003-01-31 | 2005-10-18 | Arvinmeritor Technology, Llc | Rapid take up and vibration proof adjuster mechanism |
JP2006097821A (ja) * | 2004-09-30 | 2006-04-13 | Honda Motor Co Ltd | 電動式ディスクブレーキ |
DE102008035369A1 (de) * | 2008-07-30 | 2010-02-04 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Verfahren zum Festsetzen einer Nachstellvorrichtung an einer Scheibenbremse |
CN102119288B (zh) * | 2008-08-14 | 2014-02-19 | 威伯科车轮制动有限公司 | 盘式制动器和盘式制动器的调节装置 |
-
2013
- 2013-07-31 JP JP2015525361A patent/JP5944583B2/ja active Active
- 2013-07-31 DE DE112013003793.9T patent/DE112013003793B4/de active Active
- 2013-07-31 KR KR1020130091144A patent/KR20140017461A/ko active Search and Examination
- 2013-07-31 WO PCT/KR2013/006919 patent/WO2014021646A1/ko active Application Filing
- 2013-07-31 CN CN201380036139.5A patent/CN104428556B/zh active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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US5515949A (en) * | 1993-05-04 | 1996-05-14 | Knorr Bremse Ag | Pneumatically operated disk brake |
JPH07158671A (ja) * | 1993-10-13 | 1995-06-20 | Knorr Bremse Ag | 空圧作動式のディスクブレーキ |
US6962244B2 (en) * | 2000-05-31 | 2005-11-08 | Haldex Brake Products Ab | Brake mechanism and a method of controlling force amplification |
US20050269171A1 (en) * | 2003-01-31 | 2005-12-08 | Arvinmeritor Technology, Llc | Rapid take up and vibration proof adjuster mechanism |
KR20050064832A (ko) * | 2003-12-24 | 2005-06-29 | 두산인프라코어 주식회사 | 브레이크 디스크 간극 조절 장치 |
Also Published As
Publication number | Publication date |
---|---|
JP5944583B2 (ja) | 2016-07-05 |
DE112013003793T5 (de) | 2015-04-30 |
JP2015523526A (ja) | 2015-08-13 |
CN104428556A (zh) | 2015-03-18 |
DE112013003793B4 (de) | 2023-05-04 |
KR20140017461A (ko) | 2014-02-11 |
CN104428556B (zh) | 2017-06-23 |
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