KR20030029451A - Torsion free brake shoe holder hanger - Google Patents

Torsion free brake shoe holder hanger Download PDF

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Publication number
KR20030029451A
KR20030029451A KR1020020043449A KR20020043449A KR20030029451A KR 20030029451 A KR20030029451 A KR 20030029451A KR 1020020043449 A KR1020020043449 A KR 1020020043449A KR 20020043449 A KR20020043449 A KR 20020043449A KR 20030029451 A KR20030029451 A KR 20030029451A
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KR
South Korea
Prior art keywords
hanger
lever
connecting hole
torsion
holder
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KR1020020043449A
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Korean (ko)
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KR100463393B1 (en
Inventor
함영삼
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한국철도기술연구원
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Application filed by 한국철도기술연구원 filed Critical 한국철도기술연구원
Priority to KR10-2002-0043449A priority Critical patent/KR100463393B1/en
Priority to PCT/KR2002/002486 priority patent/WO2004009421A1/en
Priority to EP02793563A priority patent/EP1534571A4/en
Publication of KR20030029451A publication Critical patent/KR20030029451A/en
Application granted granted Critical
Publication of KR100463393B1 publication Critical patent/KR100463393B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
    • B61H13/00—Actuating rail vehicle brakes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
    • B61H1/00—Applications or arrangements of brakes with a braking member or members co-operating with the periphery of the wheel rim, a drum, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
    • B61H13/00—Actuating rail vehicle brakes
    • B61H13/34—Details
    • B61H13/38—Suspension of transmitting mechanisms

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

Abstract

PURPOSE: A brake holder hanger for absorbing torsion of a bogie in a train is provided to improve travel stability by preventing cracks on a trolley frame around a hanger bracket against lateral displacement in braking during traveling on the curved rail, and to reduce the weight and expenses by designing optimally. CONSTITUTION: A brake holder hanger comprises an upper lever(10) having an upper connecting piece(12) including a hanger connecting hole(11) connected to a hanger bracket of a trolley frame, an insertion groove(13) and upper connecting rings(14) including an upper connecting hole(15); a lower lever(20) having a lower connecting ring(22) including a lower connecting hole(21), and a brake connecting piece(24) including a brake connecting hole(23); and a connecting pin(30) coupling the lower connecting hole and the upper connecting hole. Cracks are prevented, and travel stability is improved by absorbing lateral displacement and torsion with rotating the lower connecting ring against the upper connecting ring.

Description

철도차량 화차대차용 비틀림 흡수구조형 제륜자 홀더행거{TORSION FREE BRAKE SHOE HOLDER HANGER}Torsion-absorbing structured wheelset holder hanger for railway vehicle wagon truck {TORSION FREE BRAKE SHOE HOLDER HANGER}

본 발명은 철도차량 화차대차용 비틀림 흡수구조형 제륜자 홀더행거에 관한 것으로, 특히 대차의 곡선주행시 제동할 때 발생하는 횡방향의 변위가 제륜자 홀더행거의 비틀림으로 전이되면서 브라켓 주위에서 발생하는 균열을 해소하고 대차 프레임의 균열발생을 억제할 수 있는 철도차량 화차대차용 비틀림 흡수구조형 제륜자 홀더행거에 관한 것이다.The present invention relates to a torsion absorber-type wheelset holder hanger for a railway vehicle wagon, and in particular, the transverse displacement generated when braking during the curve driving of the truck is transferred to the torsion of the wheelset holder hanger to prevent cracks generated around the bracket. A torsion absorbing wheelset holder hanger for railway vehicle wagon trucks that can eliminate and suppress cracking of bogie frames.

일반적으로 철도 차량은 일정한 궤도 위를 차륜이 회전운동을 하면서 목적지까지 주행하는 것으로서 목적지에 도달하거나 제한적으로 차량의 속도를 제어하기 위한 수단, 즉 제동장치가 필요하며 이러한 제동장치의 목적은 주행차량의 속도를 효과적으로 제어하여 목적지에 정지하기 위한 것으로서 정지의 필요에 따라 정상적인 속도제어로 정지시키는 경우와 차량 앞에 돌발적인 사태가 발생하여 신속하게 비상정지를 시켜야 하는 경우, 그리고 곡선부 주행시 속도를 제어할 경우로 구분할 수 있다.In general, a railroad vehicle travels to a destination by rotating a wheel on a predetermined track, and a means for reaching or limiting the speed of the vehicle, that is, a braking device, is required. It is to stop at the destination by effectively controlling the speed, and to stop by normal speed control as needed for stop, when there is a sudden situation in front of the vehicle and need to make an emergency stop quickly, and when controlling the speed when driving on curve. Can be divided into

상기의 철도차량 제동장치는 제동통에 압축공기가 작용하게 되면, 다수의 링크부재와 홀더행거에 의해 제동력이 제륜자에 전달되어 제륜자가 차륜과 마찰됨에따라 제동이 이루어지게 된다.When the compressed air is applied to the brake cylinder of the railway vehicle, the braking force is transmitted to the wheels by the plurality of link members and the holder hanger, and the braking is performed as the wheels rub against the wheels.

상기와 같은 종래의 철도차량 화차대차용 제륜자 홀더행거는 도 1 및 도 2에 도시되어 있다.Such a conventional wheelset holder hanger for a wagon truck is shown in FIGS. 1 and 2.

이에 도시된 바와 같이 종래의 철도차량 화차대차용 제륜자 홀더행거는 제동관련 장치들을 대차 프레임 엔드빔(1)에 고정하고 제동작용시 제륜자의 작동을 보조하기 위한 부품으로서 행거브라켓(2)과 제륜자(3) 사이에 제륜자 홀더행거(4)와 핀(5)으로 연결되어 있다.As shown in the drawing, a conventional wheelset holder hanger for a railway vehicle wagon truck is a component for fixing the brake-related devices to the bogie frame end beam 1 and assisting the operation of the wheelbarrow during the braking action. A wheel holder hanger 4 and a pin 5 are connected between the wheels 3.

그러나 상기와 같은 철도차량 화차대차용 제륜자 홀더행거는 행거브라켓(2)과 제륜자(3)와 핀 연결되는 단일레버 사이에 유간이 거의 없어 제륜자 홀더행거(4)는 행거브라켓(2)의 핀(5)을 원점으로 하여 대차의 전후방향으로만 회전운동이 가능하고 좌우방향으로는 제륜자 홀더행거(4)의 움직임이 구속되어 있다.However, the wheelset holder hanger for a railway vehicle wagon truck as described above has almost no clearance between the hanger bracket 2 and the single lever connected to the wheelset 3 and the wheelset holder hanger 4 has a hanger bracket (2). With the pin 5 as the origin, rotational movement is possible only in the front and rear directions of the trolley, and the movement of the wheel holder holder hanger 4 is restricted in the left and right directions.

따라서 우리나라와 같이 곡선이 많은 선로의 특성상 곡선구간을 주행하면서 제동을 체결할 경우가 많은데 이와 같은 경우에는 제륜자가 차륜답면에 밀착고정된 상태에서 차량의 원심력으로 인하여 대차프레임과 제륜자 사이에 상대적인 횡방향 변위가 발생하고 상기 횡방향 변위가 단일레버(4)를 통하여 행거브라켓을 비틀게 되어 행거브라켓 주위에 비틀림 응력이 발생하게 된다.Therefore, due to the characteristics of the curved line, as in Korea, braking is often performed while driving the curved section. In this case, the wheelset is relatively close to the wheel frame and the wheelset due to the centrifugal force of the vehicle while the wheel is in close contact with the wheel. Directional displacement occurs and the lateral displacement causes the hanger bracket to twist through the single lever 4, causing torsional stress around the hanger bracket.

이와 같이 행거브라켓의 비틀림에 의해 발생되는 응력은 제동장치들의 상하진동에 의해 발생되는 응력보다 3배 이상 큰 것으로 이 응력값을 이론적으로 해석해 보면 허용항복강도의 72%를 초과하는 크기로서 모재부에 반복적으로 작용을 할 때에는 균열이 발생하는 문제점이 있었다.In this way, the stress generated by the torsion of the hanger bracket is three times greater than the stress generated by the up and down vibrations of the braking devices. The theoretical value of this stress exceeds 72% of the allowable yield strength. When repeatedly acting, there was a problem of cracking.

이에 본 발명은 상기와 같은 종래기술의 제반 문제점을 감안하여 안출한 것으로 기존의 홀더행거의 행거브라켓측 연결부와 제륜자측 연결부에는 변화를 주지 않고 레버의 중간부분을 양끝단의 핀과 수직한 방향으로 핀 연결하여 하부레버가 행거브라켓에 대해 횡방향으로 상대운동을 할 수 있도록 형성하여 횡방향의 변위가 행거브라켓에 전달되지 않고 상부레버와 하부레버의 핀 연결점의 위치에 따라 적절한 하부레버의 횡방향 운동으로 변환되어 횡방향의 힘을 흡수하는 철도차량 화차대차용 비틀림 흡수구조형 제륜자 홀더행거를 제공하는데 그 목적이 있다.Accordingly, the present invention has been made in view of the above-mentioned problems of the prior art, and the middle part of the lever is perpendicular to the pins at both ends without changing the hanger bracket side connection part and the wheel side connection part of the existing holder hanger. By connecting the pins, the lower levers are formed so that they can move relative to the hanger bracket in the lateral direction. It is an object of the present invention to provide a torsion absorbing structure wheelset holder hanger for a railway vehicle wagon truck which is converted into motion and absorbs lateral force.

상기와 같은 목적을 달성하기 위하여 본 발명은, 상단은 대차프레임의 행거브라켓에 핀 연결되도록 행거 연결공을 형성한 상부연결편을 형성하고 하단은 중앙에 삽입홈을 형성하며 상기 삽입홈 양측으로는 한쌍의 상부 연결링을 상기 상부연결편과 수직방향으로 형성하되 상기 연결링에는 상부연결공을 형성한 상부레버와, 상기 상부레버의 한쌍의 연결링 사이에 삽입되어 연결되도록 상단으로는 하부 연결공을 형성한 하부 연결링을 형성하며 하단으로는 상기 하부 연결링과 수직방향으로 제륜자 연결공이 형성된 제륜자 연결편이 형성되는 하부레버와, 상기 하부레버의 하부 연결공과 상기 상부 연결공에 결합되어 회전운동할 수 있도록 연결되는 연결핀으로 구성되는 것을 특징으로 하는 철도차량 화차대차용 비틀림 흡수구조형 제륜자 홀더행거를 제공한다.In order to achieve the above object, the present invention, the upper end is formed with a top connection piece forming a hanger connecting hole to be pin connected to the hanger bracket of the bogie frame and the lower end forms an insertion groove in the center and the insertion groove both sides The upper connecting ring of the upper connecting piece is formed in a vertical direction, and the connecting ring is formed between the upper lever forming the upper connecting hole and the pair of connecting rings of the upper lever to form a lower connecting hole at the top. A lower lever having a lower connecting ring formed therein and a lower lever having a wheel connecting member formed therein with a lower connecting ring in a vertical direction, and coupled to the lower connecting hole of the lower lever and the upper connecting hole to rotate; Torsion-absorbing structure wheelbarrow holder hanger for railway car wagons, characterized in that consisting of connecting pins connected to be Provided.

도 1은 종래의 철도차량 화차대차용 제륜자 홀더행거를 나타낸 사시도,1 is a perspective view showing a wheelset holder hanger for a conventional railway vehicle wagon,

도 2는 종래의 철도차량 화차대차용 제륜자 홀더행거의 설치상태도,2 is a state diagram of a conventional wheelset holder hanger for railroad car wagons,

도 3은 본 발명에 따른 철도차량 화차대차용 비틀림 흡수구조형 제륜자 홀더행거를 나타낸 분해사시도,Figure 3 is an exploded perspective view showing a torsion absorption structure wheelbarrow holder hanger for railroad car wagons according to the present invention,

도 4는 본 발명에 따른 철도차량 화차대차용 비틀림 흡수구조형 제륜자 홀더행거의 결합사시도,Figure 4 is a combined perspective view of a torsion absorption structure wheelbarrow holder hanger for railroad car wagons according to the present invention,

도 5는 본 발명에 따른 철도차량 화차대차용 비틀림 흡수구조형 제륜자 홀더행거의 설치상태도이다.5 is an installation state diagram of a torsion absorbing structure wheelset holder hanger for railway vehicle wagon truck according to the present invention.

< 도면의 주요 부분에 대한 부호의 설명 ><Description of Symbols for Main Parts of Drawings>

1 : 대차 프레임 엔드빔 2 : 행거 브라켓1: Balance frame end beam 2: Hanger bracket

3 : 제륜자 4 : 제륜자 홀더행거3: wheeler 4: wheeler holder hanger

5 : 핀5: pin

10 : 상부레버 11 : 행거연결공10: upper lever 11: hanger connector

12 : 상부연결편 13 : 삽입편12: upper connection piece 13: insertion piece

14 : 상부연결링 15 : 상부연결공14: upper connection ring 15: upper connection hole

20 : 하부레버 21 : 하부연결공20: lower lever 21: lower connection hole

22 : 하부연결링 23 : 제륜자연결공22: lower connection ring 23: wheeled connection

24 : 제륜자연결편 30 : 연결핀24: wheeled connection connecting part 30: connecting pin

상기한 바와 같은 본 발명의 바람직한 실시예를 첨부도면을 참고하여 상세히설명하면 다음과 같다.When described in detail with reference to the accompanying drawings a preferred embodiment of the present invention as described above.

첨부된 도 3은 본 발명에 따른 철도차량 화차대차용 비틀림 흡수구조형 제륜자 홀더행거를 나타낸 분해사시도이고 도 4는 본 발명에 따른 철도차량 화차대차용 비틀림 흡수구조형 제륜자 홀더행거의 결합사시도이며 도 5는 본 발명에 따른 철도차량 화차대차용 비틀림 흡수구조형 제륜자 홀더행거의 설치상태도이다.Attached Figure 3 is an exploded perspective view showing a torsion absorption structure wheelbarrow holder hanger for railroad car wagons according to the present invention and Figure 4 is a combined perspective view of a torsion absorption structure wheelbarrow holder hanger for railroad wagons according to the present invention. 5 is a state diagram of the installation of the torsion absorbing structure wheelbarrow holder hanger for railway vehicle wagon truck according to the present invention.

이에 도시된 바와 같이 본 발명의 철도차량 화차대차용 비틀림 흡수구조형 제륜자 홀더행거는 대차 프레임 엔드빔(1)의 행거브라켓(2)에 연결되는 상부레버(10)를 형성하되 상기 상부레버(10)의 상단은 대차 프레임 엔드빔(1)의 행거브라켓(2)에 핀 연결되도록 행거 연결공(11)을 형성한 상부연결편(12)을 형성하고 상기 상부레버(10)의 하단은 중앙에 삽입홈(13)을 형성하며 상기 삽입홈(13) 양측으로는 한쌍의 상부 연결링(14)을 형성하되 상기 상부 연결링(14)은 상기 상부연결편(12)과 수직방향으로 형성되어 일체로 형성하되 상기 상부 연결링(14)에는 상부연결공(15)을 형성한다.As shown therein, the torsion absorbing structure wheelset holder hanger for railroad car wagon of the present invention forms an upper lever 10 connected to the hanger bracket 2 of the bogie frame end beam 1, but the upper lever 10 ) Is formed at the upper end of the upper connecting piece 12 which forms the hanger connecting hole 11 so as to be pinned to the hanger bracket 2 of the bogie frame end beam 1, and the lower end of the upper lever 10 is inserted into the center. A groove 13 is formed and a pair of upper connection rings 14 are formed at both sides of the insertion groove 13, but the upper connection ring 14 is formed in a vertical direction with the upper connection piece 12 to be integrally formed. However, the upper connection ring 14 forms an upper connection hole 15.

이와 같이 형성된 상기 상부레버(10)의 한쌍의 연결링(14) 사이에 삽입되어 연결되도록 하부레버(20)를 형성하되 상기 하부레버(20)의 상단으로는 하부 연결공(21)을 형성한 하부 연결링(22)을 형성하며 하단으로는 상기 하부 연결링(22)과 수직방향으로 제륜자(3)에 결합하는 제륜자 연결공(23)이 형성된 제륜자 연결편(24)을 일체로 형성한다.The lower lever 20 is formed to be inserted and connected between the pair of connection rings 14 of the upper lever 10 formed as described above, but the lower connection hole 21 is formed at the upper end of the lower lever 20. The bottom connection ring 22 is formed and the bottom connection ring 22 is integrally formed with the wheel connection member 24 having a wheel connection hole 23 formed therein to be coupled to the wheel connection member 3 in the vertical direction. do.

이러한 상기 하부레버(20)의 하부 연결공(21)과 상기 상부 연결공(15)에 연결핀(30)을 결합하여 상기 상부레버(10)와 하부레버(20)가 상대적으로 회전운동할수 있도록 결합한다.By coupling the connecting pin 30 to the lower connecting hole 21 and the upper connecting hole 15 of the lower lever 20 so that the upper lever 10 and the lower lever 20 can be relatively rotated. To combine.

상기와 같이 구성된 본 발명의 작용 및 효과를 설명하면 다음과 같다.Referring to the operation and effects of the present invention configured as described above are as follows.

먼저 상부레버(10)의 상부 연결링(14)과 하부레버(20)의 하부 연결링(22)에 형성된 상부 연결공(14)과 하부 연결공(21)을 연결핀(30)으로 연결한 후 상기 상부레버(10)에 행거연결공(11)이 형성된 상부연결편(12)를 대차프레임(1)에 형성된 행거브라켓(2)에 핀 연결한다.First, connecting the upper connecting hole 14 and the lower connecting hole 21 formed in the upper connecting ring 14 and the lower connecting ring 22 of the lower lever 10 with the connecting pin 30. Thereafter, the upper connecting piece 12 having the hanger connecting hole 11 formed on the upper lever 10 is pin-connected to the hanger bracket 2 formed on the bogie frame 1.

또한 하부레버(20)의 제륜자연결공(23)이 형성된 제륜자연결편(24)을 상기 제륜자(3)에 핀 연결하여 제륜자의 작동을 보조한다.In addition, the wheel coupling member 24 having the wheel coupling hole 23 of the lower lever 20 is pinned to the wheel bearing 3 to assist the operation of the wheel bearing.

이와 같이 결합된 상태에서 목적지에 도달하거나 제한적으로 차량의 속도를 제어하기 위하여 곡선부를 주행하면서 제동할 때 발생하는 좌우방향의 변위는 상기 상부레버(10)와 하부레버(20)를 연결하는 연결핀(30)으로 연결된 상부연결링(14)에 대하여 하부연결링(22)이 좌우방향으로 회전하며 횡방향 변위를 수용함으로써 비틀림으로 인하여 행거브라켓 주위의 대차 프레임에 발생하는 균열을 방지하고 대차의 주행안정성을 향상시킬 수 있다.In this coupled state, the left and right displacement generated when braking while driving the curved portion to reach the destination or limit the speed of the vehicle is connected to the upper lever 10 and the lower lever 20. The lower connecting ring 22 rotates in the horizontal direction with respect to the upper connecting ring 14 connected by the 30 and accommodates the lateral displacement, thereby preventing cracks occurring in the bogie frame around the hanger bracket due to the torsion and running of the bogie. Stability can be improved.

또한 상기와 같은 제륜자 홀더 행거를 2단링크 구조로 형성하여 횡방향의 변위를 수용하였으나 2단 링크구조를 체인 형태로 형성하여 제륜자 홀더 행거를 채용하여도 바람직하다.In addition, the wheel holder holder hanger as described above is formed in a two-stage link structure to accommodate transverse displacement, but the wheel holder holder hanger may be adopted by forming the two-stage link structure in a chain form.

이상에서와 같이 본 발명은 곡선주행시 제동할 때 발생하는 횡방향 변위에의해 행거브라켓주위의 대차 프레임에 발생하는 균열을 방지함으로써 주행의 안정성을 향상시키고 대차의 수명연장 및 유지보수비용을 절감하며 종래 균열방지를 위하여 과도설계한 부위를 최적화함으로써 대차의 경량화 및 생산비용을 절감할 수 있는 효과가 있다.As described above, the present invention improves driving stability by preventing cracks occurring on the bogie frame around the hanger bracket due to the lateral displacement generated when braking in the curve, and extends the life span and maintenance cost of the bogie. By optimizing overdesigned parts to prevent cracking, it is effective to reduce the weight of the truck and reduce the production cost.

이상에서는 본 발명을 특정의 바람직한 실시예를 예를 들어 도시하고 설명하였으나, 본 발명은 상기한 실시예에 한정되지 아니하며 본 발명의 정신을 벗어나지 않는 범위내에서 당해 고안이 속하는 기술분야에서 통상의 지식을 가진 자에 의해 다양한 변경과 수정이 가능할 것이다.In the above, the present invention has been illustrated and described by way of specific preferred embodiments, but the present invention is not limited to the above-described embodiments, and the present invention is not limited to the spirit of the present invention. Various changes and modifications will be possible by those who have the same.

Claims (1)

상단은 대차프레임의 행거브라켓에 핀 연결되도록 행거 연결공을 형성한 상부연결편을 형성하고 하단은 중앙에 삽입홈을 형성하며 상기 삽입홈 양측으로는 한쌍의 상부 연결링을 상기 상부연결편과 수직방향으로 형성하되 상기 연결링에는 상부연결공을 형성한 상부레버와,The upper end forms an upper connection piece forming a hanger connection hole to be pin-connected to the hanger bracket of the bogie frame, and the lower end forms an insertion groove in the center thereof. Formed but the connecting ring and the upper lever forming the upper connection hole, 상기 상부레버의 한쌍의 연결링 사이에 삽입되어 연결되도록 상단으로는 하부 연결공을 형성한 하부 연결링을 형성하며 하단으로는 상기 하부 연결링과 수직방향으로 제륜자 연결공이 형성된 제륜자 연결편이 형성되는 하부레버와,The bottom connection ring is formed at the top to form a bottom connection hole at the top so as to be inserted and connected between the pair of connection rings of the upper lever. The lower lever, 상기 하부레버의 하부 연결공과 상기 상부 연결공에 결합되어 회전운동할 수 있도록 연결되는 연결핀으로 구성되는 것을 특징으로 하는 철도차량 화차대차용 비틀림 흡수구조형 제륜자 홀더행거.A torsion absorbing structure wheel holder holder for a railway vehicle wagon truck, comprising: a connecting pin coupled to the lower connection hole of the lower lever and the upper connection hole so as to rotate.
KR10-2002-0043449A 2002-07-24 2002-07-24 Torsion free brake shoe holder hanger KR100463393B1 (en)

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KR10-2002-0043449A KR100463393B1 (en) 2002-07-24 2002-07-24 Torsion free brake shoe holder hanger
PCT/KR2002/002486 WO2004009421A1 (en) 2002-07-24 2002-12-30 Torsion free brake shoe holder hanger for use in truck of railway vehicle
EP02793563A EP1534571A4 (en) 2002-07-24 2002-12-30 Torsion free brake shoe holder hanger for use in truck of railway vehicle

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AT508608A1 (en) * 2009-07-16 2011-02-15 Siemens Ag Oesterreich BRAKE SUPPORT IN CHASSIS FRAME FOR RAIL VEHICLES
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JPS5257534Y2 (en) * 1975-09-03 1977-12-27
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KR910005735Y1 (en) * 1989-03-03 1991-08-02 천원공업 주식회사 Friction mechanism assembly for railroad train bogie
US6332515B1 (en) * 1997-06-13 2001-12-25 New York Air Brake Corp. Truck mounted brake beam
KR200266872Y1 (en) * 1999-06-23 2002-03-06 유명종 one axle bogie for rolling stock
JP4297567B2 (en) * 1999-08-31 2009-07-15 東日本旅客鉄道株式会社 Single-axle truck for railway vehicles
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