KR20050037754A - A drum brake for vehicle - Google Patents
A drum brake for vehicle Download PDFInfo
- Publication number
- KR20050037754A KR20050037754A KR1020030073020A KR20030073020A KR20050037754A KR 20050037754 A KR20050037754 A KR 20050037754A KR 1020030073020 A KR1020030073020 A KR 1020030073020A KR 20030073020 A KR20030073020 A KR 20030073020A KR 20050037754 A KR20050037754 A KR 20050037754A
- Authority
- KR
- South Korea
- Prior art keywords
- drum
- brake
- brake shoe
- roller
- vehicle
- Prior art date
Links
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
- F16D65/02—Braking members; Mounting thereof
- F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
- F16D65/08—Bands, shoes or pads; Pivots or supporting members therefor for internally-engaging brakes
- F16D65/09—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
- F16D51/00—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like
- F16D51/16—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis
- F16D51/18—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with two brake-shoes
- F16D51/20—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with two brake-shoes extending in opposite directions from their pivots
Abstract
본 발명은 차량의 하중연동식 드럼브레이크에 관한 것으로, 외측면에 라이닝(42)이 부착되고 한쪽 끝부분에 부시(1)를 갖춘 브레이크슈(44)가 핀(3)과 힌지결합으로 연결되고, 이와 대응되는 브레이크슈(44) 다른쪽 끝부분에 로울러(5)가 설치되어 핀(7)과 연결되며, 각 브레이크슈(44)는 스프링(50)을 매개로 탄성적으로 연결된 차량의 드럼브레이크에 있어서, 상기 부시(1) 및 로울러(5)의 내주면이 중앙부에서 끝부분으로 향하면서 확경되어 전체적인 단면이 원형을 이루어 이들과 연결되는 핀(3,7)과 점접촉 형태로 설치되므로써 차체 하중으로 인한 드럼변형에 대응하여 브레이크슈가 자체보상하여 드럼마찰면과 균일한 접촉이 이루어지도록 하므로써 브레이 크저더현상을 방지함은 물론, 드럼면과의 이상접촉으로 인해 제동토크변동이 발생되는 거을 최소화하여 안정적으로 제동력을 발휘하도록 되어 있다.The present invention relates to a load-linked drum brake of a vehicle, wherein a brake shoe (44) having a lining (42) attached to an outer surface and a bush (1) at one end thereof is connected to the pin (3) by hinge coupling. The roller shoe corresponding to the other end of the brake shoe 44 is installed and connected to the pin 7, and each brake shoe 44 is elastically connected to the drum of the vehicle via the spring 50. In the brake, the inner circumferential surfaces of the bush (1) and the roller (5) are enlarged toward the end from the center portion, and the overall cross section is circular and is installed in the form of point contact with the pins (3,7) connected to them. The brake shoe self-compensates for the drum deformation due to the load so that it makes uniform contact with the drum friction surface, which prevents the breaker phenomenon and minimizes the braking torque fluctuation caused by abnormal contact with the drum surface. And it is adapted to exert a braking force in a stable manner.
Description
본 발명은 차량의 드럼 브레이크에 관한 것으로, 더욱 상세히는 대형차량의 브레이크슈에 설치되는 로울러와 부시가 힌지핀에 대해 롤링운동되도록 하여 제동시 발생되는 드럼 변형에 대응하고, 제동토크 변동률을 최소화시키도록 된 차량의 하중연동식 드럼브레이크에 관한 것이다.The present invention relates to a drum brake of a vehicle, and more particularly, a roller and a bush installed in a brake shoe of a large vehicle to make a rolling movement with respect to the hinge pin to correspond to the drum deformation generated during braking, and to minimize the braking torque fluctuation rate. The present invention relates to a load-linked drum brake of a vehicle.
차량에 있어서 제동장치라 함은 주행중 차량을 감속시키거나 정지시키고 지지된 상태가 유지되도록 하는 장치로서 주로 마찰브레이크 형태가 사용되고 있는데, 이 마찰브레이크는 주행중 운동에너지를 기계적인 마찰장치에 의해 열에너지로 바꾸어 그의 마찰열을 대기중에 방출하여 제동을 하도록 하는 방식이다.A brake device in a vehicle is a device that decelerates or stops a vehicle while driving and maintains a supported state. A friction brake is mainly used to convert kinetic energy into thermal energy by a mechanical friction device. The frictional heat is released into the atmosphere to brake.
드럼식 브레이크는 휠과 일체로 회전되는 브레이크드럼의 내부에 1쌍의 브레이크슈가 설치되어 제동을 하면 브레이크슈가 드럼과 접촉되면서 발생되는 마찰력에 의해 제동토크를 발생하게 되는 것으로, 도 4와 같은 구조로 되어 있다.The drum type brake is provided with a pair of brake shoes installed inside the brake drum which is integrally rotated with the wheel to generate braking torque by the frictional force generated when the brake shoes are in contact with the drum. have.
즉, 앵커브라켓트(40)를 매개로 T형 단면을 갖고서 외측면에 라이닝(42)이 부착된 좌우 1쌍의 브레이크슈(44) 일측이 각각 힌지결합으로 연결되고, 이와 대응되는 브레이크슈(44) 다른쪽 끝부분에 각각 로울러(46)가 설치되고 이 로울러(46)와 면접촉되도록 캠(48)이 설치되는 한편, 각 브레이크슈(44)는 스프링(50)을 매개로 탄성적으로 연결되어 있다.That is, one side of the left and right pair of brake shoes 44 having a T-shaped cross section through the anchor bracket 40 and the lining 42 is attached to the outer surface thereof is connected to each other by a hinge coupling, and the brake shoes 44 corresponding thereto. The roller 46 is installed at the other end and the cam 48 is installed in surface contact with the roller 46, while each brake shoe 44 is elastically connected via the spring 50. It is.
따라서, 운전자가 브레이크페달을 밟으면 에어체임버의 작용력에 의해 캠(48)으로 토크가 가해지게 되는데 이 같이 토크가 전달되면 캠(48)과 접촉된 로울러(46)가 회전됨과 더불어 각각의 브레이크슈(44)가 힌지부(52)를 중심으로 회전되면서 확장되어 브레이크드럼(도시되지 않음)의 내면과 마찰되면서 제동토크를 발생시켜 제동이 이루어지게 되고, 운전자가 브레이크 페달에서 답력을 제거하면 스프링(50)의 복원력에 의해 브레이크슈(44)가 원위치 된다.Therefore, when the driver presses the brake pedal, torque is applied to the cam 48 by the action force of the air chamber. When the torque is transmitted, the roller 46 in contact with the cam 48 is rotated and each brake shoe ( 44 is rotated about the hinge portion 52 and is expanded to friction with the inner surface of the brake drum (not shown) to generate a braking torque to brake, and when the driver removes the stepping force from the brake pedal, the spring 50 The brake shoe 44 is returned to its original position by the restoring force.
그런데 중량(重量)의 차량 즉, 트럭과 같은 대형차량의 경우에는 적재하는 짐등으로 인해 매우 큰 하중이 액슬에 작용하게 되고, 이는 로드휠(road wheel)을 거쳐 브레이크드럼으로 직접 전달되어 드럼의 변형을 야기시키게 된다. However, in the case of a heavy vehicle, such as a truck, a very large load acts on the axle due to loads, which are directly transmitted to the brake drum via a road wheel to prevent deformation of the drum. Cause it.
특히 제동시 차체에 가해지는 편하중과 적재된 짐의 하중이 합해지면 드럼변형이 더욱 심해지게 되어 브레이크 조작시 라이닝이 드럼면에 밀착되지 않아 제동토크가 변동되고 이로 인해 이상 진동 및 소음인 저더(judder)가 발생되어 차량의 정숙성과 승차감이 저하됨은 물론 제동의 안정성도 저하되는 문제가 있다.In particular, if the crushing load applied to the car body and the load of the loaded load are combined, the drum deformation becomes more severe.Because the lining does not stick to the drum surface during brake operation, the braking torque fluctuates, resulting in abnormal vibration and noise judder. ), There is a problem that the quietness and ride comfort of the vehicle is reduced, as well as the stability of the braking.
이러한 현상은 언덕길이나 고 경사로를 내려갈 때 전축으로 하중에 전이되어 큰 진동을 유발하므로써 제동성능에 심각한 영향을 주게 된다.These phenomena have a serious impact on braking performance by transferring loads to the front axis and causing large vibrations when going down hills or high slopes.
또한 이 같은 현상을 방지하기 위해 허브나 휠의 강성을 증대시키는 방안도 있으나, 이렇게 하려면 전체적인 중량이 증가하여 원가상승을 피할 수 없으며 이로인해 차량중량이 상승되는 역효과가 발생된다는 것이 문제가 된다.In addition, there is a method to increase the rigidity of the hub or wheels to prevent such a phenomenon, but to do this, the overall weight is increased to avoid the cost increase, thereby causing the adverse effect of the vehicle weight is increased.
이에 본 발명은 상기와 같은 문제점을 해소하기 위해 발명된 것으로, 브레이크슈에 설치되는 로울러와 부시가 힌지핀에 대해 롤링운동되도록 하여 제동시 발생되는 드럼 변형에 대응하고, 이 같이 드럼변형에 대응하여 브레이크슈가 자체보정되도록 자유도를 부여하므로써 마찰면에서 균일한 압력분포를 가지고 마찰이 일어나도록 하여, 제동토크 변동률을 최소화시켜 저더발생을 억제시키도록 된 차량의 하중연동식 드럼브레이크를 제공함에 그 목적이 있다. Accordingly, the present invention has been invented to solve the above problems, the roller and the bushing installed in the brake shoe to the rolling motion relative to the hinge pin to correspond to the drum deformation generated during braking, and thus corresponds to the drum deformation The purpose of the present invention is to provide a load-operated drum brake of a vehicle designed to suppress the occurrence of judging by minimizing the braking torque fluctuation rate by causing friction with a uniform pressure distribution on the friction surface by providing a degree of freedom for self-correction of the brake shoe. have.
상기와 같은 목적을 달성하기 위한 본 발명의 하중연동식 드럼브레이크는, 외측면에 라이닝이 부착되고 한쪽 끝부분에 부시를 갖춘 브레이크슈가 핀과 힌지결합으로 연결되고, 이와 대응되는 브레이크슈 다른쪽 끝부분에 로울러가 설치되어 핀과 연결되며, 각 브레이크슈는 스프링을 매개로 탄성적으로 연결된 차량의 드럼브레이크에 있어서, 상기 부시 및 로울러의 내주면이 중앙부에서 끝부분으로 향하면서 확경되어 전체적인 단면이 원형을 이루어 이와 연결되는 핀들과 점접촉 형태로 설치되는 것을 특징으로 한다. Load-actuated drum brake of the present invention for achieving the above object, the brake shoe having a lining attached to the outer side and a bush at one end is connected to the pin and the hinge coupling, the other end of the brake shoe corresponding to this A roller is installed at the part to be connected to the pin, and each brake shoe is a drum brake of a vehicle that is elastically connected via a spring, and the inner circumferential surface of the bush and the roller is enlarged toward the end from the center to round the entire cross section. It is characterized in that it is installed in the form of point contact with the pins connected thereto.
이하 본 발명의 실시예를 첨부된 예시도면을 참조로 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
도 1은 본 발명이 적용된 드럼브레이크의 개략도로써, 종래구조와 동일한 부위에는 동일한 참조부호가 도시되어 있는 바, 본 발명은 도면에 도시된 것과 같이, 외측면에 라이닝(42)이 부착되고 한쪽 끝부분에 원형단면을 갖는 부시(1)를 갖춘 브레이크슈(44)가 핀(3)과 힌지결합으로 연결되고, 이와 대응되는 브레이크슈(44) 다른쪽 끝부분에 각각 원형단면을 갖는 로울러(5)가 설치되어 핀(7)과 연결되는 한편, 각 브레이크슈(44)는 스프링(50)을 매개로 탄성적으로 연결되어 있다.Figure 1 is a schematic diagram of a drum brake to which the present invention is applied, the same reference numerals are shown in the same parts as the conventional structure, the present invention, as shown in the figure, the lining 42 is attached to the outer surface and one end A brake shoe 44 having a bush 1 having a circular cross section at its part is hingedly coupled to the pin 3, and a roller 5 having a circular cross section at the other end of the corresponding brake shoe 44, respectively. ) Is installed and connected to the pin (7), each brake shoe 44 is elastically connected via a spring (50).
이를 좀 더 구체적으로 살펴보면, 상기 부시(1) 및 로울러(5)의 내주면이 중앙부에서 끝부분으로 향하면서 확경되어 전체적인 단면으로 보아 원형을 이루게 되어 이와 연결되는 핀(3,7)과 소정의 갭이 형성되므로써 면접촉인 아닌 점접촉되는 형태로 연결설치되도록 되어 있다.In more detail, the inner circumferential surfaces of the bush 1 and the roller 5 are enlarged toward the end from the center to form a circular shape as a whole cross section, and are connected to the pins 3 and 7 with a predetermined gap. Since it is formed, it is designed to be connected in the form of point contact, not surface contact.
따라서, 휠에 가해지는 하중에 의해 드럼(도시되지 않음)이 변형되면 변형량에 맞추어 브레이크슈(44)도 연동되면서 드럼의 제동면에 라이닝(42)이 일치되도록 자체적으로 보상하므로써, 균일한 제동토크가 전달되도록 하여 제동시 드럼브레이크에 발생되는 이상진동을 최대한 방지할 수 있게 된다.Therefore, when the drum (not shown) is deformed due to the load applied to the wheel, the brake shoe 44 is also linked to the deformation amount, thereby compensating itself so that the lining 42 coincides with the brake surface of the drum, thereby providing uniform braking torque. It is possible to prevent the abnormal vibration generated in the drum brake during braking to the maximum.
즉, 운전자가 브레이크를 동작시키면 에어체임버의 작용력에 의해 캠(48)으로 토크가 전달되고, 토크가 전달되면 캠(48)과 접촉된 로울러(46)가 회전됨과 더불어 각각의 브레이크슈(44)가 힌지부를 중심으로 회전되면서 캠동작에 의해 외측으로 밀려 확장 되는데, 이때 상기 부시(1)와 로울러(5) 및 핀(3,7)간의 점접촉으로 인해 브레이크슈(44)가 도 1에 도시된 화살표 방향으로 움직이게 되므로써 드럼의 변형량이 최대한 보상되어 브레이크드럼의 내면과 균일하게 마찰되게 되므로 균일한 제동토크를 발생시킬 수 있게 되는 것이다.That is, when the driver operates the brake, torque is transmitted to the cam 48 by the action force of the air chamber. When the torque is transmitted, the roller 46 in contact with the cam 48 is rotated, and each brake shoe 44 is rotated. Is pushed outward by the cam operation while being rotated about the hinge portion, wherein the brake shoe 44 is shown in FIG. 1 due to the point contact between the bush 1, the roller 5, and the pins 3, 7. By moving in the direction of the arrow, the amount of deformation of the drum is compensated as much as possible, so as to uniformly rub with the inner surface of the brake drum, so that it is possible to generate a uniform braking torque.
한편, 상기 부시(1)와 로울러(5) 및 핀(3,7)간의 갭(gab)은 대략 1mm가 되도록 하는 것이 균일한 제동력을 발휘하는 데에 효과적인데, 이는 갭이 지나치게 많으면 드럼의 변형량 이상으로 공차가 발생되게 되므로 이로 인한 저더 현상이 발생되는 것을 방지하기 위함이다.On the other hand, the gap (gab) between the bush (1) and the roller (5) and the pins (3, 7) is effective to exert a uniform braking force, so that if the gap is too large, the amount of deformation of the drum Tolerance is generated as described above to prevent the judder caused by this.
이상 설명한 바와 같이 본 발명에 따르면, 대형차량의 휠에 전달되는 고하중으로 인해 드럼이 변형되어 브레이크라이닝과 드럼 제동면과의 마찰 불균일로 저더 가 발생되는 것을 효과적으로 억제시키므로써 제동시 차량의 정숙성과 승차감이 향상되고, 제동작용도 안정적으로 이루어지도록 하는 효과가 있게 된다.As described above, according to the present invention, the drum is deformed due to the high load transmitted to the wheel of a large vehicle, thereby effectively suppressing the occurrence of judder due to frictional unevenness between the brake lining and the drum braking surface. This is improved, and the braking action is also effected to be stable.
도 1은 본 발명이 적용된 드럼브레이크의 개략도,1 is a schematic view of a drum brake to which the present invention is applied;
도 2는 본 발명에 따른 드럼레이크에서 핀과 부시의 연결상태를 설명하기 위한 개략도,Figure 2 is a schematic diagram for explaining the connection state of the pin and bush in the drum lake according to the invention,
도 3은 본 발명에 따른 브레이크에서 캠과 핀의 연결상태를 설명하기 위한 개략도,Figure 3 is a schematic diagram for explaining the connection state of the cam and the pin in the brake according to the invention,
도 4는 종래 사용예에 따른 드럼브레이크의 개략도4 is a schematic view of a drum brake according to a conventional use example
< 도면의 주요 부분에 대한 부호의 설명 ><Description of Symbols for Main Parts of Drawings>
1 - 부시 3,7 - 핀1-bush 3,7-pin
5 - 로울러 42 - 라이닝5-Roller 42-Lining
44 - 브레이크슈 50 - 스프링44-Brake shoe 50-Spring
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020030073020A KR100552740B1 (en) | 2003-10-20 | 2003-10-20 | A Drum Brake for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020030073020A KR100552740B1 (en) | 2003-10-20 | 2003-10-20 | A Drum Brake for vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20050037754A true KR20050037754A (en) | 2005-04-25 |
| KR100552740B1 KR100552740B1 (en) | 2006-02-20 |
Family
ID=37240362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020030073020A KR100552740B1 (en) | 2003-10-20 | 2003-10-20 | A Drum Brake for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100552740B1 (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20190067718A (en) * | 2017-12-07 | 2019-06-17 | 사르코스 코퍼레이션 | Resistance-based joint constraint for a master robotic system |
| US11331809B2 (en) | 2017-12-18 | 2022-05-17 | Sarcos Corp. | Dynamically controlled robotic stiffening element |
| US11351675B2 (en) | 2018-12-31 | 2022-06-07 | Sarcos Corp. | Robotic end-effector having dynamic stiffening elements for conforming object interaction |
| US11679511B2 (en) | 2018-12-31 | 2023-06-20 | Sarcos Corp. | Robotic end effector with dorsally supported actuation mechanism |
| US11717956B1 (en) | 2022-08-29 | 2023-08-08 | Sarcos Corp. | Robotic joint system with integrated safety |
| US11759944B2 (en) | 2016-11-11 | 2023-09-19 | Sarcos Corp. | Tunable actuator joint modules having energy recovering quasi- passive elastic actuators with internal valve arrangements |
| US11772283B2 (en) | 2016-11-11 | 2023-10-03 | Sarcos Corp. | Clutched joint modules having a quasi-passive elastic actuator for a robotic assembly |
| US11826907B1 (en) | 2022-08-17 | 2023-11-28 | Sarcos Corp. | Robotic joint system with length adapter |
| US11833676B2 (en) | 2020-12-07 | 2023-12-05 | Sarcos Corp. | Combining sensor output data to prevent unsafe operation of an exoskeleton |
| US11897132B1 (en) | 2022-11-17 | 2024-02-13 | Sarcos Corp. | Systems and methods for redundant network communication in a robot |
| US11924023B1 (en) | 2022-11-17 | 2024-03-05 | Sarcos Corp. | Systems and methods for redundant network communication in a robot |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101491331B1 (en) * | 2013-10-21 | 2015-02-06 | 현대자동차주식회사 | Brake shoe for air brake system |
| KR102506757B1 (en) * | 2017-09-26 | 2023-03-07 | 현대자동차주식회사 | Self Tolerance Correction type S-Cam Break System and Vehicle thereby |
-
2003
- 2003-10-20 KR KR1020030073020A patent/KR100552740B1/en not_active IP Right Cessation
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11759944B2 (en) | 2016-11-11 | 2023-09-19 | Sarcos Corp. | Tunable actuator joint modules having energy recovering quasi- passive elastic actuators with internal valve arrangements |
| US11772283B2 (en) | 2016-11-11 | 2023-10-03 | Sarcos Corp. | Clutched joint modules having a quasi-passive elastic actuator for a robotic assembly |
| US11926044B2 (en) | 2016-11-11 | 2024-03-12 | Sarcos Corp. | Clutched joint modules having a quasi-passive elastic actuator for a robotic assembly |
| KR20190067718A (en) * | 2017-12-07 | 2019-06-17 | 사르코스 코퍼레이션 | Resistance-based joint constraint for a master robotic system |
| US11331809B2 (en) | 2017-12-18 | 2022-05-17 | Sarcos Corp. | Dynamically controlled robotic stiffening element |
| US11351675B2 (en) | 2018-12-31 | 2022-06-07 | Sarcos Corp. | Robotic end-effector having dynamic stiffening elements for conforming object interaction |
| US11679511B2 (en) | 2018-12-31 | 2023-06-20 | Sarcos Corp. | Robotic end effector with dorsally supported actuation mechanism |
| US11833676B2 (en) | 2020-12-07 | 2023-12-05 | Sarcos Corp. | Combining sensor output data to prevent unsafe operation of an exoskeleton |
| US11826907B1 (en) | 2022-08-17 | 2023-11-28 | Sarcos Corp. | Robotic joint system with length adapter |
| US11717956B1 (en) | 2022-08-29 | 2023-08-08 | Sarcos Corp. | Robotic joint system with integrated safety |
| US11897132B1 (en) | 2022-11-17 | 2024-02-13 | Sarcos Corp. | Systems and methods for redundant network communication in a robot |
| US11924023B1 (en) | 2022-11-17 | 2024-03-05 | Sarcos Corp. | Systems and methods for redundant network communication in a robot |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100552740B1 (en) | 2006-02-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6640937B2 (en) | Slidable brake disc system | |
| KR20050037754A (en) | A drum brake for vehicle | |
| CN101432543A (en) | A sliding arrangement for a disk brake | |
| JP5648358B2 (en) | Wheels for in-wheel motor vehicles | |
| JPH01288635A (en) | Brake gear for rotary member | |
| US6397982B2 (en) | Disc brake housing | |
| US6374965B1 (en) | Damped brake shoe support device for drum brake assembly | |
| KR100471914B1 (en) | Disc brake with slidable brake discs | |
| JPH11287266A (en) | Disc brake | |
| CN113195919B (en) | Wheel braking device | |
| KR100456966B1 (en) | An Apparatus for Reducing Vibration In Breaking Automobile | |
| US3370679A (en) | Disc brake with yieldable supporting element | |
| KR100471915B1 (en) | Disk brake suspension for improved turning circle | |
| JP5087645B2 (en) | Disc brake with pin rail caliper | |
| KR20080032997A (en) | Drum brake | |
| CN110446876B (en) | Wear optimized pad design | |
| KR100527695B1 (en) | Brake drum of vehicle | |
| KR100771037B1 (en) | Drum brake for vehicle | |
| KR100364285B1 (en) | A damper spring support structure of clutch disk for a car | |
| EP1508716A2 (en) | Disk brake with slidable brake discs | |
| KR101036962B1 (en) | Drum Brake | |
| JP3789942B2 (en) | Tire structure | |
| KR200157004Y1 (en) | Dish spring structure of vehicle clutch disk | |
| KR100428138B1 (en) | a structure for increasing brake force of disk brake of vehicles | |
| KR200300506Y1 (en) | The fixing structure of adjuster lever for wheel cylinder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant | ||
| FPAY | Annual fee payment |
Payment date: 20090203 Year of fee payment: 4 |
|
| LAPS | Lapse due to unpaid annual fee |