KR0140529Y1 - Primary suspension assembly for a bogie frame in a rail car - Google Patents
Primary suspension assembly for a bogie frame in a rail car Download PDFInfo
- Publication number
- KR0140529Y1 KR0140529Y1 KR2019960039183U KR19960039183U KR0140529Y1 KR 0140529 Y1 KR0140529 Y1 KR 0140529Y1 KR 2019960039183 U KR2019960039183 U KR 2019960039183U KR 19960039183 U KR19960039183 U KR 19960039183U KR 0140529 Y1 KR0140529 Y1 KR 0140529Y1
- Authority
- KR
- South Korea
- Prior art keywords
- axle box
- bogie frame
- wear plate
- primary suspension
- wear
- Prior art date
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Classifications
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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
- B61F5/26—Mounting or securing axle-boxes in vehicle or bogie underframes
- B61F5/30—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
- B61F5/308—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes incorporating damping devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/32—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds
- B60G11/48—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds not including leaf springs
- B60G11/52—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds not including leaf springs having helical, spiral or coil springs, and also rubber springs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/17—Mounting of bogies, e.g. for trailers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2300/00—Indexing codes relating to the type of vehicle
- B60G2300/10—Railway vehicles
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/046—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means using combinations of springs of different kinds
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
- Vibration Prevention Devices (AREA)
Abstract
본 고안은 철도차량에서 사용되는 1차 현가장치에 관한 것으로, 대차프레임(1)과 액슬박스(2)사이에 상,하부 스프링시트(3a,3b)를 매개로하여 코일스프링(4)이 설치되고, 상기 상부스프링시트(3a)의 중앙부에 수직하방으로 형성된 가이드포스트(5)가 상기 하부스프링시트(3b)와 액슬박스(2)의 중공부를 관통하도록 배치되며, 상기 가이드포스트(5) 외주면하부에 마모판(6)이 끼워진 한편, 상기 마모판(6)과 액슬박스(2)사이에 소정형상의 제1흡진부재(7)가 끼워지고, 상기 코일 스프링(4) 상부에 고주파 진동흡수용 제2흡진부재(8)가 끼워져, 대차프레임(1)과 액슬박스사(2)이에서 수평방향으로의 상대운동이 원활하게 이루어져 차량의 곡선주행 성능을 향상할 수 있고, 이에 따라 차륜의 직립마모와 마모판(6)의 편마모를 줄일 수 있도록 한 것이다.The present invention relates to a primary suspension device used in a railway vehicle, the coil spring (4) is installed between the bogie frame (1) and the axle box (2) via upper and lower spring seats (3a, 3b) And a guide post 5 formed vertically downward in a central portion of the upper spring sheet 3a so as to pass through the hollow portion of the lower spring sheet 3b and the axle box 2, and an outer peripheral surface of the guide post 5. The wear plate 6 is inserted in the lower portion, while the first suction member 7 having a predetermined shape is sandwiched between the wear plate 6 and the axle box 2, and the high frequency vibration absorption is provided on the coil spring 4. The second suction member (8) is fitted, so that the relative movement in the horizontal direction between the bogie frame (1) and the axle box yarn (2) is smooth, thereby improving the curve driving performance of the vehicle. It is to reduce the wear and wear of the upright wear plate (6).
Description
본 고안은 철도차량에서 사용되는 1차 현가장치에 관한 것으로, 특히 코일스프링과 고무스프링을 조합하여 차량운행시 발생되는 진동이나 충격을 효과적으로 흡수할 수 있도록 한 철도차량용 1차 현가장치에 관한 것이다.The present invention relates to a primary suspension device used in a railway vehicle, and more particularly, to a primary suspension system for a railway vehicle that is capable of effectively absorbing the vibration or shock generated when driving a vehicle by combining a coil spring and a rubber spring.
일반적으로 철도차량에서 사용되는 현가장치는 스프링 작용에 의해 차체의 중량을 지지함과 동시에 차륜의 상하 진동을 완화함으로써 승차감을 좋게 하고, 화물의 충격으로 인한 파손을 방지하며 각부에 과대부하가 가해지지 않도록 하기 위한 장치로서, 크게 1차 현가장치와 2차 현가장치로 구분되고, 1차 현가장치는 철도차륜과 대차 프레임(bogie frame)에 설치되어 철도차륜으로부터 전달되는 진동을 감쇠시키고, 2차 현가장치는 대차 프레임과 차체사이에 설치되어 대차 프레임으로 전달된 진동을 2차적으로 감쇠시키게 되어 있다.Suspension devices generally used in railway vehicles support the weight of the vehicle body by the spring action and at the same time reduce the up and down vibrations of the wheels to improve the ride quality, prevent damage caused by the impact of cargo, and prevent excessive load on each part. As a device for preventing, it is largely divided into a primary suspension and a secondary suspension, the primary suspension is installed on the railway wheel and bogie frame to attenuate the vibration transmitted from the railway wheel, and the secondary suspension The device is installed between the bogie frame and the body to secondary attenuate vibrations transmitted to the bogie frame.
상기한 바와 같은 종래의 철도차량용 1차 현가장치는 도 2와 도 3에 나타낸 바와 같이, 대차 프레임(101)과 액슬 박스(axle box,102)사이에 실린더어셈블리(103)와 코일어셈블리(104)가 각각 설치되어 있고, 상기 실린더어셈블리(103)는 대차프레임(101)에 수직하방으로 설치된 내부실린더(105)와, 이 내부실린더(105) 외주면에 진동감쇠작용을 하는 마모판(106)을 사이에 두고 끼워지면서 상기 액슬박스(102)에 수직상방으로 설치된 외부실린더(107)로 이루어져, 상기 내,외부실린더(105,107)가 상하방향으로 상대운동할 때 마모판(106)에서 미끄럼마찰이 일어나면서 수직방향의 진동을 감쇠할 수 있도록 되어 있다.As described above, in the conventional railway vehicle primary suspension device, as illustrated in FIGS. 2 and 3, the cylinder assembly 103 and the coil assembly 104 are disposed between the bogie frame 101 and the axle box 102. The cylinder assembly 103 is provided between the inner cylinder 105 installed vertically downward to the bogie frame 101, and a wear plate 106 for vibrating damping action on the outer circumferential surface of the inner cylinder 105. It consists of an outer cylinder 107 vertically upwardly installed on the axle box 102 while being inserted in the inner side, and the sliding friction occurs in the wear plate 106 when the inner and outer cylinders 105 and 107 move relative to each other in the vertical direction. The vibration in the vertical direction can be attenuated.
그리고, 상기 스프링어셈블리(104)는 상단이 대차프레임(101)하부에 설치되고 하단이 외부실린더(107)의 플랜지(107a) 상부에 안착되어 차륜(108)로부터 전달된 충격을 흡수하기 위한 코일스프링(109)과, 상기 외부실린더(107) 하부에 끼워지면서 플랜지(107a)하면과 액슬박스(102)에 끼워진 스프링가이드(110) 상면에 밀착되어 수직방향의 고주파 진동을 흡수하기 위한 제1고무스프링(111) 및, 상기 외부실린더(107)와 스프링가이드(110) 내측면사이에 끼워져 수평방향(좌,우,전,후) 의 충격이나 진동을 흡수하는 제2고무스프링(112)을 포함하여 구성되어 있다.In addition, the spring assembly 104 has a coil spring for absorbing the shock transmitted from the wheel 108 by the upper end is installed on the lower portion of the bogie frame 101 and the lower end is seated on the flange 107a of the outer cylinder 107. 109 and a first rubber spring fitted to the lower side of the outer cylinder 107 and in close contact with the lower surface of the flange 107a and the upper surface of the spring guide 110 fitted to the axle box 102 to absorb high frequency vibration in the vertical direction. And a second rubber spring 112 that is inserted between the outer cylinder 107 and the inner surface of the spring guide 110 to absorb shocks or vibrations in a horizontal direction (left, right, front and rear). Consists of.
그런데, 상기와 같이 이루어진 종래의 1차 현가장치에 의하면, 차량이 곡선 레일을 따라 주행할 때 대차프레임(101)과 액슬 박스(102)사이에서 전후방향(차량진행방향)으로 변위가 발생되어야 하나, 외부실린더(107)가 액슬 박스(102)내에 부착된 제2고무스프링(112)을 밀며 변위를 발생하려할 때 외부실린더(107)와 액슬박스(102)사이에 설치된 제1고무스프링(112)의 수평방향 마찰저항력에 의해 외부실린더(107)와 액슬박스(102)가 부드럽게 미끄러져 변위를 발생시키지 못하고 오히려 움직이지 못하게 잡아당기는 효과를 내어 곡선주행시 차륜(108), 특히 이동변위가 커야 할 회전곡률반경이 큰 바깥측 차륜에 직립마모를 유발한다는 문제점이 있었다.By the way, according to the conventional primary suspension made as described above, when the vehicle travels along the curved rail, a displacement should be generated in the front-rear direction (vehicle progress direction) between the bogie frame 101 and the axle box 102. When the external cylinder 107 pushes the second rubber spring 112 attached to the axle box 102 to generate displacement, the first rubber spring 112 installed between the external cylinder 107 and the axle box 102 is generated. The outer cylinder 107 and the axle box 102 are smoothly slid by the horizontal frictional resistance of the wheel and thus the displacement does not occur, but rather the movement of the wheel 108, in particular, the displacement of the wheel should be large. There was a problem of causing upright wear on the outer wheel with a large radius of curvature.
또한, 차륜(108)이나 대차프레임으로부터 충격이나 진동이 전달될 때 마모판(106)이 외부실린더(107)에 대해 수직방향으로 미끄럼운동되면서 마모되어 수직방향의 진동을 흡수할 때에, 상기한 바와 같이 외부실린더(107)의 수평방향 변위량은 상하 제1고무스프링(111)의 수평방향 저항력에 의해 내부실린더(105)의 수평방향 변위량보다 상대적으로 작아지기 때문에 마모판(106)에 작용되는 힘은 편향되게 작용되어 마모판(106)에 편마모를 발생시키고, 심한 경우에는 마모판(106)을 파손시키까지 한다는 문제점이 있었다.Further, when the wear plate 106 is worn while sliding in the vertical direction with respect to the outer cylinder 107 when shock or vibration is transmitted from the wheel 108 or the bogie frame and absorbs the vibration in the vertical direction, As described above, since the horizontal displacement of the outer cylinder 107 is relatively smaller than the horizontal displacement of the inner cylinder 105 by the horizontal resistance of the upper and lower first rubber springs 111, the force applied to the wear plate 106 is There is a problem in that the action is biased to cause abrasion on the wear plate 106, and in severe cases even to wear the wear plate 106.
이에 본 고안은 상기와 같은 문제점을 해결하기 위해 안출된 것으로, 대차프레임과 액슬사이에서 수평방향으로의 상대운동을 원활하게하여 곡선주행 성능을 향상시킬 수 있을 뿐만 아니라 차륜의 직립마모와 마모판의 편마모를 줄일 수 있도록 된 철도차량용 1차 현가장치를 제공하는 데 그 목적이 있다.Therefore, the present invention was devised to solve the above problems, and it is possible to improve the curve driving performance by smoothing the relative movement in the horizontal direction between the bogie frame and the axle as well as the upright wear of the wheel and the wear plate. The purpose is to provide a primary suspension system for railroad cars that can reduce uneven wear.
상기와 같은 목적을 달성하기 위한 본 고안은, 대차프레임과 액슬박스사이에 상,하부 스프링시트를 매개로하여 코일스프링이 설치되어 있고, 상기 상부스프링시트의 중앙부에 수직하방으로 형성된 가이드포스트(guide post)가 상기 하부스프링시트와 액슬박스의 중공부를 관통하도록 배치되어 있으며, 상기 가이드포스트 외주면하부에 마모판이 끼워진 한편, 상기 마모판과 액슬박스사이에 소정형상의 제1흡진부재가 끼워져 있다.The present invention for achieving the above object, the coil spring is installed between the bogie frame and the axle box via the upper and lower spring sheet, the guide post (guide) formed vertically downward in the center of the upper spring sheet post) is disposed to penetrate the hollow portion of the lower spring sheet and the axle box, and a wear plate is fitted under the outer circumferential surface of the guide post, and a first suction member having a predetermined shape is inserted between the wear plate and the axle box.
상기와 같이 이루어진 본 고안은 대차프레임과 액슬사이에서 수평방향으로의 상대운동이 제1흡진부재외에 다른 부분품 간섭없이 원활하게 이루어져 차량의 곡선주행 성능을 향상할 수 있게 되고, 이에 따라 차륜의 직립마모와 마모판의 편마모를 줄일 수 있게 된다.According to the present invention, the relative motion in the horizontal direction between the bogie frame and the axle is smoothly performed without interference with other parts besides the first vibration absorbing member, thereby improving the curve driving performance of the vehicle. It is possible to reduce wear and wear of the wear plate.
도 1 은 본 고안에 따른 철도차량용 1차 현가장치의 부분단면도,1 is a partial cross-sectional view of a primary suspension device for a railway vehicle according to the present invention,
도 2 는 종래 기술에 따른 철도차량용 1차 현가장치의 개략적인 측면도,2 is a schematic side view of a primary suspension device for a railway vehicle according to the prior art;
도 3 은 종래 기술에 따른 철도차량용 1차 현가장치를 도 1과 같이 나타낸 단면도이다.3 is a cross-sectional view showing a primary suspension for a railway vehicle according to the prior art as shown in FIG.
* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings
1 : 대차프레임 2 : 액슬박스1: Balance frame 2: Axle box
3a,3b : 스프링시트 4 : 코일스프링3a, 3b: spring sheet 4: coil spring
5 : 가이드포스트 6 : 마모판5: guide post 6: wear plate
7 : 제1흡진부재 8 : 제2흡진부재7: first suction member 8: second suction member
S1,S2 : 중공부S1, S2: hollow part
이하 본 고안을 첨부한 예시도면을 참조하여 자세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
도 1은 본 고안에 따른 철도차량용 1차 현가장치의 부분단면도로서, 차량의 대차프레임(1)과 액슬박스(2)사이에 상,하부 스프링시트(3a,3b)를 매개로 하여 코일스프링(4)이 설치되어 있고, 상기 상부 스프링시트(3a)의 중앙부에 수직하방으로 돌출성형된 가이드포스트(5)가 상기 하부 스프링시트(3b)와 액슬박스(2)에 형성된 중공부(S1,S2)를 관통하도록 배치되어 있으며, 상기 가이드포스트(5) 외주면 하부에 수직방향의 진동을 흡수하기 위한 마모판(6) 끼워져 있다.1 is a partial cross-sectional view of a primary suspension device for a railway vehicle according to the present invention, a coil spring (3a, 3b) between the bogie frame (1) and the axle box (2) of the vehicle via a spring ( 4) is provided, the hollow posts (S1, S2) formed in the lower spring seat (3b) and the axle box (2) with a guide post (5) protruded vertically downward in the center of the upper spring seat (3a) The wear plate (6) for absorbing the vibration in the vertical direction is fitted in the lower portion of the outer peripheral surface of the guide post (5).
그리고, 상기 마모판(6)의 외주면하부와 액슬박스(2)의 내벽면사이에 원추형상을 하면서 고무재질로 된 제1흡진부재(7)가 압입되어, 차륜(도시되지 않음)이나 대차프레임(1)로부터 전달된 수평방향(좌,우,전,후)의 충격이나 진동을 흡수할 수 있도록 되어 있고, 상기 코일 스프링(4) 상부에 제2흡진부재(8)가 끼워져 수직방향으로 고주파 진동을 흡수하도록 되어 있다.Then, the first suction member 7 made of rubber is pressed in a conical shape between the lower outer circumferential surface of the wear plate 6 and the inner wall surface of the axle box 2, and a wheel (not shown) or a bogie frame are press-fitted. It is designed to absorb the shock or vibration in the horizontal direction (left, right, front, back) transmitted from (1), and the second vibration absorbing member (8) is inserted in the upper portion of the coil spring (4), the high frequency in the vertical direction It is designed to absorb vibrations.
상기와 같이 이루어진 본 고안의 1차 현가장치는, 차륜이나 대차프레임(1)로부터 수직방향으로 충격하중이나 진동이 전달되어 오면 상기 코일스프링(4)은 수축되면서 수직방향의 하중을 지지함과 동시에 충격을 흡수하게 되고, 이때 코일스프링(4)의 수축과 이완이 반복되면서 발생되는 진동은 상기 제2흡진부재(8) 내부에서 마찰과 마모판(6)의 제1흡진부재(7)와의 마찰에 의해 흡수되어지게 된다.In the primary suspension device of the present invention made as described above, when the impact load or vibration is transmitted from the wheel or the bogie frame 1 in the vertical direction, the coil spring 4 contracts and supports the load in the vertical direction. In this case, the vibration generated as the contraction and relaxation of the coil spring 4 is repeated may cause friction within the second suction member 8 and friction between the first suction member 7 of the wear plate 6. Is absorbed by.
그리고, 차륜이나 대차프레임(1)으로부터 수평방향으로 작용되는 하중은 액슬박스(2)와 가이드스프링(4)을 거쳐 가이드포스트(5)에 전달하거나 혹은 액슬박스(2)와 제1흡진부재(7), 마모판(6)을 거쳐 가이드포스트(5)에 전달하게 되는 데, 이때 수평방향의 하중이나 반복하중 등에 의해 발생되는 수평방향 진동은 상기 액슬박스(2)의 중공부(S2)에 압입된 제1흡진부재(7)에 의해 지지됨과 동시에 흡수되어지게 된다.The load acting in the horizontal direction from the wheel or the bogie frame 1 is transmitted to the guide post 5 through the axle box 2 and the guide spring 4 or the axle box 2 and the first suction member ( 7), the wear plate (6) is transmitted to the guide post (5), wherein the horizontal vibration generated by the horizontal load or repeated load, etc. to the hollow portion (S2) of the axle box (2) It is supported by the press-fitted first suction member 7 and is simultaneously absorbed.
여기서, 상기 제1흡진부재(7)의 형상은 원추형으로 이루어져 있기 때문에 수평방향으로 작용 하중은 수평과 수직방향의 하중으로 분해되면서 마모판(6)으로 전달되게 되고, 수직방향으로 분산된 하중과 진동은 마모판(6)을 수직방향으로 이 마모판(6)과 제1흡진부재(7)과 상호 미끄럼마찰에 의해 감소하거나 흡수할 수 있게 된다.Here, since the shape of the first suction member 7 is conical, the working load in the horizontal direction is transferred to the wear plate 6 while being decomposed into the horizontal and vertical loads, and the load distributed in the vertical direction and The vibration can be reduced or absorbed by sliding friction between the wear plate 6 and the first suction member 7 in the vertical direction.
이와 같이 차향이 곡선주행을 할 때에 필요한 수평방향으로의 대차프레임(1)과 액슬박스(2)의 하중 다른 부분에 간섭없이 가이드포스트(5) 혹은 액슬박스(2)를 거쳐 제1흡진부재(7)에 작용하여 제1흡진부재(7)를 압축시켜 수평방향으로의 제진작용을 원활하게 해줌과 동시에 대차프레임(1)과 액슬박스(2)의 움직임을 원활하게 해주게 된다.In this way, the first suction member (3) passes through the guide post (5) or the axle box (2) without interfering with the load frame (1) in the horizontal direction and other parts of the axle box (2) in the direction required for the curved driving. It acts on 7) to compress the first suction member (7) to facilitate the vibration damping in the horizontal direction and at the same time smoothly the movement of the bogie frame (1) and the axle box (2).
즉, 본 고안의 1차 현가장치는 수평방향으로 하중이 작용될 때에 적절한 탄성계수에 의한 변위를 얻을 수 있어 곡선 주행성능을 향상시킬 수 있을 뿐만 아니라 회전곡률반경이 큰 차륜의 직립마모를 줄일 수 있게 된다.That is, the primary suspension system of the present invention can obtain the displacement by the appropriate modulus of elasticity when the load is applied in the horizontal direction, thereby improving the curve running performance and reducing the upright wear of the wheel with a large radius of curvature. Will be.
그리고, 마모판(6)과 접하여 마찰을 일으키는 제1흡진부재(7)가 상대적으로 낮은 강성을 갖고 있음과 동시에 균일한 수평하중을 작용하기 때문에 마모판(6)의 과대 편마모나 파손을 줄일 수 있을 뿐만 아니라 적절한 감쇠효과도 얻을 수 있게 된다.In addition, since the first vibration absorbing member 7, which is in contact with the wear plate 6 and causes friction, has a relatively low rigidity and a uniform horizontal load, the excessive wear and tear of the wear plate 6 can be reduced. In addition to this, an appropriate damping effect can be obtained.
이상에서 설명한 바와 같이 본 고안에 따른 철도차량용 1차 현가장치에 의하면, 대차프레임과 액슬사이에서 수평방향으로의 상대운동이 원활하게되어 곡선주행 성능의 향상할 수 있고, 차륜의 직립마모 및 마모판의 편마모를 줄일 수 있는 효과를 얻을 수 있게 된다.As described above, according to the primary suspension device for railway vehicles according to the present invention, the relative movement in the horizontal direction is smoothly performed between the bogie frame and the axle, thereby improving the curve driving performance, and the wheels are worn and worn out. It is possible to obtain the effect of reducing the wear of the side.
그리고, 종래의 현가장치와는 달리 분할되어 이루어진 실린더가 필요없는 등 본 고안은 그 구조가 간단하여 유지보수작업이 간편하게 된다.In addition, unlike the conventional suspension device, the present invention does not require a divided cylinder, such as the structure is simple and maintenance work is simplified.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960039183U KR0140529Y1 (en) | 1996-11-08 | 1996-11-08 | Primary suspension assembly for a bogie frame in a rail car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960039183U KR0140529Y1 (en) | 1996-11-08 | 1996-11-08 | Primary suspension assembly for a bogie frame in a rail car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR19980026320U KR19980026320U (en) | 1998-08-05 |
| KR0140529Y1 true KR0140529Y1 (en) | 1999-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019960039183U KR0140529Y1 (en) | 1996-11-08 | 1996-11-08 | Primary suspension assembly for a bogie frame in a rail car |
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| Country | Link |
|---|---|
| KR (1) | KR0140529Y1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101671009B1 (en) | 2015-04-24 | 2016-11-01 | 한국철도기술연구원 | Damper and axial spring for railway car using eddy current damping property |
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1996
- 1996-11-08 KR KR2019960039183U patent/KR0140529Y1/en not_active IP Right Cessation
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| Publication number | Publication date |
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| KR19980026320U (en) | 1998-08-05 |
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