KR101073580B1 - Installation apparatus of under devices of railway car - Google Patents

Installation apparatus of under devices of railway car Download PDF

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Publication number
KR101073580B1
KR101073580B1 KR1020090040382A KR20090040382A KR101073580B1 KR 101073580 B1 KR101073580 B1 KR 101073580B1 KR 1020090040382 A KR1020090040382 A KR 1020090040382A KR 20090040382 A KR20090040382 A KR 20090040382A KR 101073580 B1 KR101073580 B1 KR 101073580B1
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South Korea
Prior art keywords
lower device
railway vehicle
slot
device bracket
fixing
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KR1020090040382A
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Korean (ko)
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KR20100121296A (en
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민경식
김응천
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현대로템 주식회사
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Priority to KR1020090040382A priority Critical patent/KR101073580B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D49/00—Other details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61C—LOCOMOTIVES; MOTOR RAILCARS
    • B61C17/00—Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems
    • 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
    • B61F1/00—Underframes
    • B61F1/08—Details
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B37/00—Nuts or like thread-engaging members
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Automation & Control Theory (AREA)
  • Connection Of Plates (AREA)

Abstract

본 발명은 철도차량의 하부기기 설치장치에 관한 것이다.The present invention relates to a device for installing a lower device of a railway vehicle.

본 발명에 따른 철도차량의 하부기기 설치장치는 철도차량의 언더프레임 하부에 형성된 티슬롯(T Slot), 철도차량의 하부기기가 수용되는 공간을 제공하는 하부기기 브라켓, 머리부가 하부기기 브라켓을 고정하면서 하부기기 브라켓과 티슬롯에 삽입 체결된 고정볼트 및 티슬롯의 내면에 접촉되어 수평방향으로의 회전운동이 방지된 상태로 고정너트에 체결된 고정수단을 포함하여 구성된다.The device for installing the lower device of the railway vehicle according to the present invention is a t-slot (T Slot) formed under the underframe of the railway vehicle, the lower device bracket for providing a space for accommodating the lower device of the railway vehicle, the head fixing the lower device bracket While it is configured to include a fixing bolt inserted into the lower device bracket and the T-slot and the fixing means fastened to the fixing nut in contact with the inner surface of the T-slot to prevent rotational movement in the horizontal direction.

본 발명에 따르면, 하부기기들에 대한 설치작업의 편의성이 향상되고, 하부기기들에 의한 철도차량의 언더프레임 손상을 방지할 수 있는 효과가 있다.According to the present invention, the convenience of the installation work for the lower devices is improved, there is an effect that can prevent the underframe damage of the railway vehicle by the lower devices.

티슬롯, 하부기기 브라켓, 고정볼트, 고정수단, 보호수단 Tee slot, lower device bracket, fixing bolt, fixing means, protective means

Description

철도차량의 하부기기 설치장치{INSTALLATION APPARATUS OF UNDER DEVICES OF RAILWAY CAR}INSTALLATION APPARATUS OF UNDER DEVICES OF RAILWAY CAR}

본 발명은 철도차량의 하부기기 설치장치에 관한 것이다. 보다 구체적으로, 본 발명은 철도차량의 하부에 설치되는 여러 가지 하부기기들에 대한 설치작업의 편의성을 향상시키고, 하부기기들에 의한 철도차량의 언더프레임 손상을 방지할 수 있는 철도차량의 하부기기 설치장치에 관한 것이다.The present invention relates to a device for installing a lower device of a railway vehicle. More specifically, the present invention improves the convenience of the installation work for the various lower devices installed on the lower portion of the railway vehicle, and the lower apparatus of the railway vehicle that can prevent underframe damage of the railway vehicle by the lower apparatuses It relates to an installation apparatus.

일반적으로 전동차를 포함하는 철도차량의 하부에는 철도차량을 운행하기 위한 여러 가지 하부기기들이 설치된다.In general, the lower portion of the railway vehicle including the electric vehicle is provided with a variety of lower equipment for operating the railway vehicle.

보다 구체적으로, 하부기기들을 수용하기 위한 하부기기 브라켓을 볼트와 너트를 이용하여 철도차량의 언더프레임 하부에 형성된 티슬롯에 체결하는 방식으로 철도차량의 하부기기 설치작업이 이루어진다.More specifically, the installation of the lower device of the railroad car is performed by fastening the lower device bracket for accommodating the lower devices to the t-slot formed under the underframe of the railroad car using bolts and nuts.

도 1은 종래의 철도차량 하부기기 설치방식을 나타낸 도면이다.1 is a view showing a conventional railway vehicle lower equipment installation method.

도 1을 참조하면, 종래에는 철도차량의 차체를 구성하는 언더프레임(1)의 티슬롯(10) 내부에 볼트 캐리어(33)를 삽입한 후, 하부기기 브라켓(20)과 연결하여 하부기기를 취부 즉, 설치한다.Referring to FIG. 1, conventionally, after inserting a bolt carrier 33 into a t-slot 10 of an underframe 1 constituting a vehicle body of a railway vehicle, the lower device is connected by connecting to the lower device bracket 20. Mounting or installation.

보다 구체적으로, 티슬롯(10) 내부에 볼트(30)가 결합된 알루미늄 압출재인 볼트 캐리어 조립체를 삽입하여 하부기기를 설치한다. 볼트 캐리어 조립체는 볼트 캐리어(33)와 커넥터(32)의 조립체이다.More specifically, the lower carrier is installed by inserting a bolt carrier assembly, which is an aluminum extrusion material to which the bolt 30 is coupled, inside the t-slot 10. The bolt carrier assembly is an assembly of the bolt carrier 33 and the connector 32.

종래의 이러한 방식에 따르면, 볼트(30) 길이의 문제로 볼트의 머리부(31)가 밀려 올라가서 볼트(30)와 너트(40) 간의 체결이 쉽지 않다는 문제점이 있다.According to this conventional method, there is a problem that the fastening between the bolt 30 and the nut 40 is not easy because the head 31 of the bolt is pushed up due to the problem of the length of the bolt 30.

또한, 국부적인 하중 집중으로 티슬롯(10) 하단의 돌출영역이 손상될 수 있다는 문제점이 있다.In addition, there is a problem that the protruding region at the bottom of the T-slot 10 may be damaged due to local load concentration.

본 발명은 철도차량의 하부기기 설치작업의 편의성을 향상시키는 것을 기술적 과제로 한다.The present invention is to improve the convenience of the lower equipment installation work of a railway vehicle as a technical problem.

또한, 철도차량의 하부기기에 의한 하중을 분산시켜 철도차량의 내구성을 향상시키는 것을 기술적 과제로 한다.In addition, the technical problem is to improve the durability of the railway vehicle by distributing the load by the lower equipment of the railway vehicle.

또한, 철도차량의 하부기기를 설치하기 위하여 요구되는 구성품의 수를 줄이고, 전체적으로 철도차량의 제조비용을 저감하는 것을 기술적 과제로 한다.In addition, the technical problem is to reduce the number of components required to install the lower equipment of the railway vehicle, and to reduce the manufacturing cost of the railway vehicle as a whole.

이러한 기술적 과제를 달성하기 위한 본 발명에 따른 철도차량의 하부기기 설치장치는 철도차량의 언더프레임 하부에 형성된 티슬롯(T Slot), 철도차량의 하부기기가 수용되는 공간을 제공하는 하부기기 브라켓, 머리부가 상기 하부기기 브라켓을 고정하면서 상기 하부기기 브라켓과 상기 티슬롯에 삽입 체결된 고정볼트 및 상기 티슬롯의 내면에 접촉되어 수평방향으로의 회전운동이 방지된 상태로 상기 고정볼트에 체결된 고정수단을 포함하여 구성된다.An apparatus for installing a lower device of a railway vehicle according to the present invention for achieving the technical problem is a t-slot (T Slot) formed under the underframe of the railway vehicle, a lower device bracket for providing a space for receiving the lower apparatus of the railway vehicle, Fixed head fastened to the fixing bolt while the head is fixed to the lower device bracket and the fixing bolt inserted into the lower device bracket and the tea slot and the inner surface of the tea slot to prevent rotational movement in the horizontal direction It comprises a means.

상기 하부기기 브라켓과 상기 티슬롯 사이에 설치되어 상기 하부기기의 중량에 의한 상기 티슬롯의 파손을 방지하기 위한 보호수단을 더 포함하는 것을 특징으로 한다.It is characterized in that it further comprises a protection means installed between the lower device bracket and the tea slot to prevent damage of the tea slot by the weight of the lower device.

상기 보호수단은 연성 재질의 금속인 것을 특징으로 한다.The protective means is characterized in that the metal of the flexible material.

상기 하부기기 브라켓과 상기 고정볼트의 머리부 사이에 설치된 와셔를 더 포함하는 것을 특징으로 한다.And a washer installed between the lower device bracket and the head of the fixing bolt.

본 발명에 따르면, 철도차량의 하부기기 설치작업의 편의성이 향상되는 효과가 있다.According to the present invention, there is an effect that the convenience of the lower device installation work of the railway vehicle is improved.

또한, 철도차량의 하부기기에 의한 하중을 분산시킬 수 있어 철도차량의 내구성이 향상되는 효과가 있다.In addition, it is possible to distribute the load by the lower device of the railway vehicle has the effect of improving the durability of the railway vehicle.

또한, 철도차량의 하부기기를 설치하기 위하여 요구되는 구성품의 수를 줄이고, 전체적으로 철도차량의 제조비용을 저감할 수 있는 효과가 있다.In addition, there is an effect that can reduce the number of components required to install the undercarriage of the railway vehicle, and reduce the manufacturing cost of the railway vehicle as a whole.

이하에서는 첨부된 도면을 참조하여 본 발명에 따른 철도차량의 하부기기 설치장치의 바람직한 실시 예들을 상세히 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail preferred embodiments of the lower device installation apparatus of a railway vehicle according to the present invention.

도 2는 본 발명의 일 실시 예에 따른 철도차량의 하부기기 설치장치의 사시도이고, 도 3은 본 발명의 일 실시 예에 따른 철도차량의 하부기기 설치장치의 단면도이다.2 is a perspective view of a lower apparatus installation apparatus of a railway vehicle according to an embodiment of the present invention, Figure 3 is a cross-sectional view of the lower apparatus installation apparatus of a railway vehicle according to an embodiment of the present invention.

도 2 및 도 3을 참조하면, 본 발명의 일 실시 예에 따른 철도차량의 하부기기 설치장치는 티슬롯(10), 하부기기 브라켓(20), 고정볼트(30), 고정수단(40), 보 호수단(50) 및 와셔(60)를 포함하여 구성된다.2 and 3, the lower device installation device of a railway vehicle according to an embodiment of the present invention is a t-slot 10, the lower device bracket 20, fixing bolt 30, fixing means 40, It is configured to include the bottom end 50 and the washer (60).

티슬롯(T Slot, 10)은 철도차량의 언더프레임(1) 하부에 형성되고 있다, 이러한 티슬롯(10)은 골격을 구성하는 지지 기둥과 지지 기둥의 하단에서 내측으로 돌출된 돌출부로 구성된다. 이러한 돌출부는 지지 기둥의 하단으로부터 티슬롯(10)의 내측으로 연장되어 형성됨으로써, 지지 기둥을 중심으로 보면, 티슬롯(10)의 내측으로 돌출된 형상을 갖고 중앙 영역에 개구(開口)를 갖는다. 돌출부 사이에 형성된 개구와 지지 기둥의 내부에 형성된 수용 공간에 후술하는 고정수단(40)이 배치된다.The T slot 10 is formed under the underframe 1 of the railroad car. The T slot 10 includes a support pillar constituting the skeleton and a protrusion protruding inward from the bottom of the support pillar. . Such a protrusion is formed extending from the lower end of the support pillar to the inside of the tslot 10, so that the protrusion has a shape protruding inwardly of the tslot 10 and has an opening in the central region. . The fixing means 40 which will be described later is disposed in the opening formed between the protrusions and the receiving space formed inside the support pillar.

하부기기 브라켓(20)은 철도차량의 운행에 필요한 여러 가지 하부기기들을 수용하기 위한 공간을 제공한다. 하부기기 브라켓(20)에는 후술하는 고정볼트(30)가 삽입되는 홀이 형성되어 있다. 하부기기 브라켓(20)에 형성된 홀의 단면에 고정볼트(30)에 형성된 나사산에 대응하는 나사산을 형성하는 것이 바람직하다. 이와 같이 하면, 고정볼트(30)를 회전시켜 하부기기 브라켓(20)에 형성된 홀에 체결할 수 있어 체결작업의 편의성이 향상된다. The lower device bracket 20 provides a space for accommodating various lower devices required for the operation of the railway vehicle. The lower device bracket 20 has a hole into which the fixing bolt 30 to be described later is inserted. It is preferable to form a thread corresponding to the thread formed in the fixing bolt 30 in the cross section of the hole formed in the lower device bracket (20). In this case, the fixing bolt 30 can be rotated to be fastened to a hole formed in the lower device bracket 20, thereby improving convenience of the fastening operation.

고정볼트(30)는 머리부(31)가 하부기기 브라켓(20)을 고정하면서 하부기기 브라켓(20)과 티슬롯(10)에 삽입 체결되어 있다. 보다 구체적으로, 고정볼트(30)는 하부기기 브라켓(20)의 하부로부터 티슬롯(10)을 향하여 체결되어 있으며, 고정볼 트(30)의 머리부(31)의 직경은 하부기기 브라켓(20)에 형성된 홀의 직경보다 크다. 이에 따라, 고정볼트(30)는 하부기기 브라켓(20)을 고정 지지하게 된다.The fixing bolt 30 is inserted into the lower device bracket 20 and the tea slot 10 while the head 31 fixes the lower device bracket 20. More specifically, the fixing bolt 30 is fastened toward the tea slot 10 from the bottom of the lower device bracket 20, the diameter of the head 31 of the fixing bolt 30 is the lower device bracket 20 ) Is larger than the diameter of the hole formed. Accordingly, the fixing bolt 30 is fixed to the lower device bracket 20.

고정수단(40)은 티슬롯(10)의 내면에 접촉되어 수평방향으로의 회전운동이 방지된 상태로 고정볼트(30)에 체결된다. 보다 구체적으로, 고정수단(40)의 외경과 티슬롯(10)의 내경은 실질적으로 동일하다. 이에 따라, 티슬롯(10) 내부에서의 고정수단(40)의 수평방향으로의 회전운동이 방지된다. 이와 같이, 고정수단(40)의 수평방향으로의 회전운동은 방지된 상태이므로, 고정볼트(30)를 하부기기 브라켓(20)의 하부로부터 티슬롯(10)을 개구를 거쳐 고정수단(40)에 회전 체결하는 작업의 편의성이 향상된다.The fixing means 40 is in contact with the inner surface of the t-slot 10 is fastened to the fixing bolt 30 in a state that the rotational movement in the horizontal direction is prevented. More specifically, the outer diameter of the fixing means 40 and the inner diameter of the teethlot 10 are substantially the same. Accordingly, the rotational movement of the fixing means 40 in the tslot 10 in the horizontal direction is prevented. In this way, since the rotational movement of the fixing means 40 in the horizontal direction is prevented, the fixing means 30 is fixed to the fixing means 40 through the opening of the slot 30 through the opening from the lower portion of the lower device bracket 20. Convenience of the work to fasten the rotation is improved.

보호수단(50)은 하부기기 브라켓(20)과 티슬롯(10) 사이에 설치되어 하부기기의 중량에 의한 티슬롯(10)의 파손을 방지한다. 보다 구체적으로, 종래에는 하부기기에 의한 하중이 티슬롯(10)의 하단인 돌출부에 집중되어 티슬롯(10)이 쉽게 손상되는 문제점이 있었다. 그러나, 본 발명의 일 실시 예에서와 같이 하부기기 브라켓(20)과 티슬롯(10)의 돌출부사이에 넓은 면적을 갖는 보호수단(50)을 설치함으로써, 하부기기에 의한 하중을 분산시킬 수 있어 티슬롯(10)의 내구성이 향상된다. 이러한 보호수단(50)은 알루미늄 등과 같은 연성 재질의 금속을 채택하여 구성할 수 있다.The protection means 50 is installed between the lower device bracket 20 and the tea slot 10 to prevent damage to the tea slot 10 by the weight of the lower device. More specifically, in the related art, the load by the lower device is concentrated on the protruding portion, which is the lower end of the tslot 10, so that the tslot 10 is easily damaged. However, by installing a protective means 50 having a large area between the lower device bracket 20 and the protrusion of the tea slot 10 as in one embodiment of the present invention, it is possible to distribute the load by the lower device The durability of the teethlot 10 is improved. The protection means 50 may be configured by adopting a metal of a flexible material such as aluminum.

와셔(60)는 하부기기 브라켓(20)과 고정볼트(30)의 머리부(31) 사이에 설치되어 있다. 이러한 와셔(60)는 고정 볼트의 불필요한 회전에 의하여 고정볼트(30)와 고정수단(40) 간의 체결이 풀리는 것을 방지하기 위한 수단이다.The washer 60 is installed between the lower device bracket 20 and the head 31 of the fixing bolt 30. The washer 60 is a means for preventing the fastening between the fixing bolt 30 and the fixing means 40 by the unnecessary rotation of the fixing bolt.

이상에서 상세히 설명한 바와 같이 본 발명에 따르면, 첫째, 종래의 경우와 비교하여 철도차량의 하부기기 설치작업의 편의성이 크게 향상되는 효과가 있다. 둘째, 종래의 경우와 비교하여 철도차량의 하부기기에 의한 하중을 분산시킬 수 있어 티슬롯(10)의 내구성이 크게 향상되는 효과가 있다. 세째, 철도차량의 하부기기를 설치하기 위하여 요구되는 구성품의 수를 줄이고, 전체적으로 철도차량의 제조비용을 저감할 수 있는 효과가 있다.According to the present invention as described in detail above, first, there is an effect that the convenience of the lower device installation work of the railway vehicle is significantly improved compared to the conventional case. Second, compared to the conventional case can distribute the load by the lower device of the railway vehicle has the effect that the durability of the slot 10 is greatly improved. Third, there is an effect that can reduce the number of components required to install the undercarriage of the railway vehicle, and reduce the manufacturing cost of the railway vehicle as a whole.

이상에서 본 발명에 대한 기술사상을 첨부도면과 함께 서술하였지만 이는 본 발명의 바람직한 실시 예를 예시적으로 설명한 것이지 본 발명을 한정하는 것은 아니다. 또한, 이 기술 분야의 통상의 지식을 가진 자라면 누구나 본 발명의 기술사상의 범주를 이탈하지 않는 범위 내에서 다양한 변형 및 모방이 가능함은 명백한 사실이다.Although the technical spirit of the present invention has been described above with reference to the accompanying drawings, this is intended to describe exemplary embodiments of the present invention by way of example and not to limit the present invention. In addition, it is obvious that any person skilled in the art can make various modifications and imitations without departing from the scope of the technical idea of the present invention.

도 1은 종래의 철도차량의 하부기기 설치방식을 나타낸 도면이다.1 is a view showing the installation method of the lower device of a conventional railway vehicle.

도 2는 본 발명의 일 실시 예에 따른 철도차량의 하부기기 설치장치의 사시도이다.2 is a perspective view of a lower device installation apparatus of a railway vehicle according to an embodiment of the present invention.

도 3은 본 발명의 일 실시 예에 따른 철도차량의 하부기기 설치장치의 단면도이다.Figure 3 is a cross-sectional view of the lower device installation apparatus of a railway vehicle according to an embodiment of the present invention.

***** 도면의 주요 부분에 대한 부호의 설명 ********** Explanation of symbols for the main parts of the drawing *****

1: 언더프레임 10: 티슬롯1: Underframe 10: Tee Slot

20: 하부기기 브라켓 30: 고정볼트20: Lower device bracket 30: Fixing bolt

31: 고정볼트의 머리부 40: 고정너트31: head of fixing bolt 40: fixing nut

50: 보호수단 60: 와셔50: protection means 60: washer

Claims (4)

철도차량의 언더프레임 하부에 형성된 티슬롯(T Slot);A T slot formed under the underframe of the railway vehicle; 철도차량의 하부기기가 수용되는 공간을 제공하는 하부기기 브라켓;A lower device bracket for providing a space in which the lower device of the railway vehicle is accommodated; 상기 하부기기 브라켓과 상기 티슬롯 사이에 설치되어 상기 하부기기의 중량에 의한 상기 티슬롯의 파손을 방지하기 위한 보호수단;Protection means installed between the lower device bracket and the tea slot to prevent breakage of the tea slot by the weight of the lower device; 머리부가 상기 하부기기 브라켓을 고정하면서 상기 하부기기 브라켓과 상기 티슬롯에 삽입 체결된 고정볼트;A fixing bolt whose head part is inserted into and fastened to the lower device bracket and the tea slot while fixing the lower device bracket; 상기 하부기기 브라켓과 상기 고정볼트의 머리부 사이에 설치된 와셔; 및A washer installed between the lower device bracket and the head of the fixing bolt; And 외경이 상기 티슬롯의 내경과 동일하며, 상기 티슬롯의 내면에 접촉되어 수평방향으로의 회전운동이 방지된 상태로 상기 고정볼트에 체결된 고정수단을 포함하는, 철도차량의 하부기기 설치장치.An outer diameter is the same as the inner diameter of the t-slot, and contacting the inner surface of the t-slot comprising a fixing means fastened to the fixing bolt in a state in which rotational movement in the horizontal direction is prevented, the lower device installation apparatus of a railway vehicle. 삭제delete 삭제delete 삭제delete
KR1020090040382A 2009-05-08 2009-05-08 Installation apparatus of under devices of railway car KR101073580B1 (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200330880Y1 (en) 1998-12-29 2003-12-24 주식회사 로템 Undercarriage skirt structure of railway car with aluminum body

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200330880Y1 (en) 1998-12-29 2003-12-24 주식회사 로템 Undercarriage skirt structure of railway car with aluminum body

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