KR20040077045A - Preventive structure for pin-bushing separation - Google Patents

Preventive structure for pin-bushing separation Download PDF

Info

Publication number
KR20040077045A
KR20040077045A KR1020030012432A KR20030012432A KR20040077045A KR 20040077045 A KR20040077045 A KR 20040077045A KR 1020030012432 A KR1020030012432 A KR 1020030012432A KR 20030012432 A KR20030012432 A KR 20030012432A KR 20040077045 A KR20040077045 A KR 20040077045A
Authority
KR
South Korea
Prior art keywords
pin
bushing
fixing member
coupling
ring
Prior art date
Application number
KR1020030012432A
Other languages
Korean (ko)
Other versions
KR100514651B1 (en
Inventor
김태성
김정석
정필중
최중용
김민철
Original Assignee
엘지전선 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 엘지전선 주식회사 filed Critical 엘지전선 주식회사
Priority to KR10-2003-0012432A priority Critical patent/KR100514651B1/en
Publication of KR20040077045A publication Critical patent/KR20040077045A/en
Application granted granted Critical
Publication of KR100514651B1 publication Critical patent/KR100514651B1/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
    • H01L21/683—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping
    • H01L21/687—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches
    • H01L21/68714—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support
    • H01L21/68742—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support characterised by a lifting arrangement, e.g. lift pins

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Pressure Vessels And Lids Thereof (AREA)

Abstract

PURPOSE: Structure for preventing displacement of a busing of a pin for a tank is provided to restrict the bushing from being displaced from the pin with shearing force by fastening the ring-shaped fixing member to the pin, and to extend the life span of the track by preventing breakage of the pin and by fixing the bushing to the pin stably. CONSTITUTION: A pin is inserted to a hole of a shoe body, and plural rubber bushings are mounted in the outer periphery of the pin to buffer impact. Fixing members(20) are contacted to the bushings around the ends of the pin, and fastened to the pin to restrict displacement of the bushing. The fixing member is composed of an upper ring(21) having an upper assembling surface(22) protruded by covering the semicircle of the pin and an upper assembling hole(23) formed in the upper assembling surface, a lower ring(25) having a lower assembling surface(26) protruded and contacted to the upper assembling surface by covering the other semicircle of the pin and a lower assembling hole(27) integrated with the upper assembling hole and formed in the lower assembling surface, and an assembling member having a bolt(31) penetrating the upper and lower assembling holes and a nut(32) thread-connected to the bolt.

Description

전차용 핀의 부싱 이탈 방지 구조{PREVENTIVE STRUCTURE FOR PIN-BUSHING SEPARATION}Bushing departure prevention structure of tank pin {PREVENTIVE STRUCTURE FOR PIN-BUSHING SEPARATION}

본 발명은 전차용 핀의 부싱 이탈 방지 구조에 관한 것으로, 슈바디의 내부에 삽입되는 핀의 외주면에 장착된 다수의 부싱 양끝부분에 상하부링으로 분리 형성된 고정부재가 핀에 고정되어 전차의 이동에 의한 전단력으로 부싱이 이탈되는 것을 방지하는 것을 특징으로 한다.The present invention relates to a bushing separation prevention structure of the pin for the tank, the fixing member formed by separating the upper and lower rings on both ends of the plurality of bushings mounted on the outer circumferential surface of the pin inserted into the body of the pin is fixed to the pin to move the tank It is characterized in that the bushing is prevented from being separated by the shear force.

일반적으로 전차의 하부에는 무한궤도(無限軌道)라고 불리는 이송수단이 장착되는데, 이것은 강판제(鋼板製)의 판을 체인 모양으로 연결하고, 이것을 앞·뒤바퀴에 벨트처럼 걸어 동력으로 회전시켜서 주행하게 하는 장치이다.Generally, the lower part of the tank is equipped with a conveying means called endless track, which is connected to the plate of steel plate in chain shape, and it is driven by power by hanging it like a belt on the front and rear wheels. It is a device that lets you.

상기 무한궤도는 보통의 바퀴에 비해 접지면적이 크고 지면과의 마찰도 크므로, 요철이 심한 도로나 진흙에서도 자유로이 주행할 수 있다.Since the caterpillar has a larger ground area and greater friction with the ground than a normal wheel, the caterpillar can travel freely even on uneven roads or mud.

그리고, 좌우의 회전속도를 바꿈으로써 방향전환을 자유로이 할 수 있으며, 회전반경을 최소한으로 작게 할 수도 있는데, 양쪽의 무한궤도를 같은 속도로 서로 반대가 되게 회전시키면, 차량의 중심은 조금도 움직이지 않고 선회(旋回)하게 된다.And, by changing the rotation speed of the left and right, the direction can be changed freely, and the radius of rotation can be reduced to the minimum. If the infinite tracks are rotated to be opposite to each other at the same speed, the center of the vehicle does not move at all. You will turn.

상기 무한궤도는 여러조의 슈바디가 연결되어 이루어지는데, 도 1은 종래 무한궤도의 슈바디 구조를 나타내는 도면이다.The caterpillar is composed of a plurality of pairs of Schwab is connected, Figure 1 is a view showing a conventional structure of the caterpillar track.

도시한 바와 같이, 기존 슈바디(11)의 내부에는 다수의 구멍이 형성되고, 상기 구멍에는 핀(13)이 삽입되며, 상기 핀(13)의 끝단에는 커넥터(12)가 결합된다.As shown, a plurality of holes are formed in the existing body 11, the pin 13 is inserted into the hole, the connector 12 is coupled to the end of the pin (13).

이때, 상기 핀(13)의 외주면에는 고무 재질의 부싱(14)이 다수 장착되는데, 이로 인해 상기 부싱(14)이 장착된 핀(13)은 슈바디(11)의 구멍에 뻑뻑하게 끼워진다.In this case, a plurality of rubber bushings 14 are mounted on the outer circumferential surface of the pin 13, whereby the pins 13 on which the bushings 14 are mounted are tightly fitted into the holes of the shoe body 11.

상기한 구성으로 이루어진 전차가 운행할 때, 고무재질의 부싱(14)이 받는 인장력 및 전단력에 의해서 상기 부싱(14)이 홀에서 빠져 나오게 되는데, 상기 커넥터(12)는 이러한 현상을 방지하는 역할을 한다.When the electric vehicle constructed as described above operates, the bushing 14 is pulled out of the hole by the tension force and the shear force applied to the bushing 14 of rubber material, and the connector 12 serves to prevent such a phenomenon. do.

그러나, 상기 커넥터는 스프라켓 등에 의해 힘을 받고 있으므로 그러한 힘에 의해 전차의 장기간 운행 시 커넥터와 금속재 슈바디 사이의 간격이 점차 벌어지게 되어 상기 커넥터는 부싱의 이탈을 효과적으로 방지할 수 없게 된다.However, since the connector is powered by a sprocket or the like, the gap between the connector and the metal shoe body gradually increases during the long-term operation of the tank due to such a force, so that the connector cannot effectively prevent the departure of the bushing.

이로 인해 고무재질의 부싱이 핀에서 떨어져 외부로 빠져 나오면, 궁극적으로 완충역할을 하는 부싱이 없어지게 되어, 핀은 다량의 충격하중으로 인해 파손되는 결과를 초래하여 핀 파손으로 인한 유지비용의 증가 및 전차 운행시간의 단축을 초래하는 문제점이 있었다.As a result, when the rubber bushing is pulled out of the pin and escapes to the outside, the bushing that ultimately acts as a buffer is eliminated, and the pin is damaged due to a large impact load, thereby increasing the maintenance cost due to pin breakage and There was a problem causing shortening of the tram time.

이에 본 발명은 상기와 같은 문제점들을 해소하기 위해 안출된 것으로써, 본 발명은 분리 형성된 링 형상의 고정부재를 핀에 고정시켜 전단력에 의해 부싱이 핀에서 빠져나오지 못하도록 하고, 궁극적으로는 부싱이 안정적으로 핀에 고정되어 핀의 파손을 방지하는 것을 목적으로 한다.Accordingly, the present invention has been made to solve the above problems, the present invention is to fix the ring-shaped fixing member formed in the pin to prevent the bushing from the pin by the shear force, ultimately the bushing is stable It is fixed to the pin to prevent the pin from being broken.

도 1은 종래 무한궤도의 슈바디 구조를 나타내는 도면.1 is a view showing a conventional body of a chute body structure.

도 2는 본 발명에 따른 고정부재를 나타내는 사시도.2 is a perspective view showing a fixing member according to the present invention.

도 3은 본 발명에 따른 고정부재가 장착된 상태를 나타내는 도면.3 is a view showing a state in which the fixing member according to the present invention is mounted.

*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

11 : 슈바디 12 : 커넥터11: Body 12: Connector

13 : 핀 14 : 부싱13: pin 14: bushing

20 : 고정부재 21 : 상부링20: fixing member 21: upper ring

25 : 하부링 30 : 결합재25: lower ring 30: binder

상기와 같은 목적을 달성하기 위한 본 발명은 슈바디에 형성된 구멍에 충격완화를 위한 다수의 부싱이 장착된 핀이 삽입되는 전차궤도에 있어서,The present invention for achieving the above object in the trajectory trajectory is inserted into the pin formed with a plurality of bushings for shock mitigation in the hole formed in the body,

상기 핀의 양끝단에는 상기 부싱의 이탈을 방지하기 위한 고정부재가 장착되는 것을 특징으로 하는 전차용 핀의 부싱 이탈 방지 구조를 제공한다.Both ends of the pin provides a bushing departure prevention structure of the pin for the tank, characterized in that the fixing member is mounted to prevent the departure of the bushing.

이때, 본 발명에서 상기 고정부재는 핀의 일측 반원을 덮고 양끝단이 돌출 형성되는 상부결합면을 구비하며, 상기 상부결합면 상에는 상부결합홀이 형성되는 상부링과; 상기 핀의 타측 반원을 덮고 양끝단이 돌출 형성되어 상기 상부결합면과 면접하는 하부결합면을 구비하며, 상기 하부결합면 상에는 상기 상부결합홀과 일치하도록 하부결합홀이 형성되는 하부링과; 상기 상하부결합홀을 관통하는 볼트 및 상기 볼트와 나사 결합하는 너트를 포함하여 구성되는 것이 바람직하다.At this time, in the present invention, the fixing member has an upper coupling surface covering one side semicircle of the pin and protruding both ends thereof, and an upper ring on which the upper coupling hole is formed; A lower ring covering the other semi-circle of the pin and having both ends protruding from each other to have a lower coupling surface that is in contact with the upper coupling surface, and a lower coupling hole formed on the lower coupling surface to coincide with the upper coupling hole; It is preferable to include a bolt penetrating the upper and lower coupling holes and a nut for screwing the bolt.

이하, 본 발명의 바람직한 실시예를 첨부된 도면을 참조하여 설명한다.Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

또한, 본 실시예는 본 발명의 권리범위를 한정하는 것이 아니라 단지 예시로 제시된 것이며, 종래 구성과 동일한 부분은 동일한 부호 및 명칭을 사용한다.In addition, the present embodiment is presented by way of example only, not intended to limit the scope of the present invention, the same parts as the conventional configuration uses the same reference numerals and names.

도 2는 본 발명에 따른 고정부재를 나타내는 사시도이고, 도 3은 본 발명에 따른 고정부재가 장착된 상태를 나타내는 도면이다.2 is a perspective view showing a fixing member according to the present invention, Figure 3 is a view showing a state in which the fixing member according to the present invention is mounted.

도시한 바와 같이, 본 발명에 따른 전차용 핀의 부싱 이탈 방지 구조는 다수의 부싱이 장착된 핀의 양끝부분에 고정부재를 장착하여 부싱이 핀에서 빠져 나오지 못하게 하여 무한궤도의 수명을 연장시키는 것을 특징으로 한다.As shown, the bushing departure prevention structure of the tank pin according to the present invention is to prevent the bushing from coming out of the pin by mounting the fixing member at both ends of the pin is equipped with a plurality of bushings to extend the life of the track It features.

본 발명을 구체적으로 살펴보면, 슈바디(11)의 내부에 관통되어 형성된 구멍에 핀(13)이 삽입되고, 상기 핀(13)의 외주면에는 고무재질로 성형된 다수의 부싱(14)이 충격완화를 위해 장착된다.Looking at the present invention in detail, the pin 13 is inserted into the hole formed through the inside of the body (11), the outer circumferential surface of the pin 13 a plurality of bushings 14 formed of rubber material shock-absorbing Is fitted for.

그리고, 상기 핀(13)의 양끝단, 좀 더 구체적으로는 핀(13)의 양끝부분에 형성된 부싱(14)과 접하면서 상기 핀(13)에 고정되도록 고정부재(20)가 장착되는데, 본 발명의 실시예에서 상기 고정부재(20)는 상부링(21)과 하부링(25) 및 상기 상하부링(21,25)이 핀(13)에 고정되도록 하는 결합재(30)로 이루어진다.In addition, the fixing member 20 is mounted to be fixed to the pin 13 while contacting the bushing 14 formed at both ends of the pin 13, and more specifically, at both ends of the pin 13. In the embodiment of the invention the fixing member 20 is composed of a coupling member 30 to be fixed to the upper ring 21 and the lower ring 25 and the upper and lower rings 21 and 25 to the pin (13).

이때, 상기 상부링(21)은 핀(13)의 일측 반원을 덮는 상부덮개(24)를 구비하고, 상기 상부덮개(24)의 양끝단에는 각각 수평으로 돌출 형성되는 상부결합면(22)이 형성되며, 상기 상부결합면(22) 상에는 상부결합홀(23)이 형성된다.At this time, the upper ring 21 is provided with an upper cover 24 covering one side semicircle of the pin 13, the upper coupling surface 22 is formed to protrude horizontally at both ends of the upper cover 24, respectively The upper coupling surface 23 is formed on the upper coupling surface 22.

그리고, 상기 하부링(25)은 상기 핀(13)의 타측 반원을 덮는 하부덮개(28)를 구비하고, 상기 하부덮개(28)의 양끝단에는 각각 수평으로 돌출 형성되어 상기 상부결합면(22)과 면접하는 하부결합면(26)이 형성되며, 상기 하부결합면 (26)상에는 상기 상부결합홀(23)과 일치하는 하부결합홀(27)이 형성된다.In addition, the lower ring 25 has a lower cover 28 covering the other half circle of the pin 13, and both ends of the lower cover 28 are formed to protrude horizontally, respectively, the upper coupling surface 22 ) And a lower coupling surface 26 to be interviewed, and a lower coupling hole 27 coinciding with the upper coupling hole 23 is formed on the lower coupling surface 26.

또한, 상기 결합재(30)는 상기 상하부결합홀(23,27)을 관통하는 볼트(31) 및 상기 볼트(31)와 나사 결합하는 너트(32)로 이루어지는데, 금속재를 결합하도록 충분한 강도를 갖는 각종 부품의 사용이 가능하며, 핀(13)에 홀을 파고 키를 집어넣는 방식도 사용 가능하다.In addition, the binder 30 is composed of a bolt 31 penetrating the upper and lower coupling holes (23, 27) and a nut 32 for screwing the bolt 31, has a sufficient strength to bond the metal material Various parts can be used, and a method of digging a hole in the pin 13 and inserting a key can also be used.

상기한 구성을 갖는 본 발명의 작용 및 효과는 다음과 같다.Effects and effects of the present invention having the above-described configuration are as follows.

핀(13)에 다수 부착된 부싱(14)의 양끝 측면에 밀접하게 고정부재(20) 즉, 상하부링(21,25)을 상기 핀(13)에 밀착시키고, 상기 결합재(30)로 상기 상하부링(21,25)이 단단히 고정되도록 한다.The fixing member 20, that is, the upper and lower rings 21 and 25, is closely attached to the pin 13 and closely attached to both end sides of the bushing 14 attached to the pin 13, and the upper and lower parts of the bushing 14 are attached to the pin 13. Make sure the rings 21 and 25 are firmly fixed.

상기한 상태는 상기 고정부재(20)가 커넥터(12)와 독립적으로 핀(13)에 체결되어 있어, 전차가 기동 스프라켓 등의 외부 힘을 받지 않으므로 슈바디(11)와 간격이 벌어지지 않게 된다.In the above state, since the fixing member 20 is fastened to the pin 13 independently of the connector 12, the tank does not receive external force such as a starting sprocket, so that the gap between the body 12 and the shoe body 11 is not widened. .

그리고, 부싱(14)에 걸리는 바깥쪽으로의 전단력을 상기 고정부재(20)가 지지해 주므로, 상기 부싱(14)이 핀(13)에서 떨어져 나오는 현상이 방지된다.In addition, since the fixing member 20 supports the shear force to the outside of the bushing 14, the phenomenon that the bushing 14 falls off the pin 13 is prevented.

이때, 상기 핀(13)에 많은 힘이 걸리게 되므로 고정부재(20)의 형상이 중요한데, 고정부재(20)를 단순히 원형링으로 하였을 경우 부싱(14)이 받는 전단력을 견뎌내지 못하고 밀려나가게 되며, 핀(13)에 홈을 만들 경우 핀(13)에 걸리는 인장력에 의해 핀(13)이 파손되므로, 개별 형상으로 이루어진 상하부링(21,25)이 결합재(30)에 의해 고정되는 구조가 되어야 핀(13)에 걸리는 하중도 최소로 되면서 전단력도 효과적으로 막게 된다.At this time, since the pin 13 takes a lot of force, the shape of the fixing member 20 is important. When the fixing member 20 is simply a circular ring, the pin 13 may not be able to withstand the shearing force received by the bushing 14 and is pushed out. When the groove is formed in the pin 13, the pin 13 is broken by the tensile force applied to the pin 13, so that the upper and lower rings 21 and 25 having individual shapes are fixed by the coupling member 30. The load on (13) is minimized, and shear force is effectively prevented.

따라서, 종래의 기술에 의하여 생산된 궤도를 전차에 부착하여 운행한 경우, 운행 중 커넥터와 금속재 슈바디의 간격이 벌어져서 고무재질의 부싱이 핀에서 떨어져 홀에서 빠져 나오고 이로 인해 핀이 빈번하게 파손되었으나, 본 발명을 채용하여 제작된 궤도의 경우 종래처럼 부싱이 핀에서 떨어져 홀에서 빠져 나오는 현상은 발생하지 않고, 이로 인하여 궤도 수명이 20% 증가한다.Therefore, when the track produced by the prior art is attached to the tank and operated, the gap between the connector and the metal body is widened while driving, so that the rubber bushing is pulled out of the hole and the pin is frequently damaged. In the case of a track manufactured by adopting the present invention, a phenomenon in which the bushing falls out of the hole and falls out of the hole does not occur as in the prior art, and thus the track life is increased by 20%.

상기한 바와 같이 본 발명에 따른 전차용 핀의 부싱 이탈 방지 구조는 간단한 형상에 의해 부싱이 핀에서 빠져 나오지 못하게 함으로써, 전차의 궤도 수명을 연장시키는 효과가 있다.As described above, the bushing departure prevention structure of the tank pin according to the present invention has an effect of extending the track life of the tank by preventing the bushing from coming out of the pin by a simple shape.

또한, 부품의 형상이 간단하여 생산하기 용이하므로 고정부재의 생산비용이 핀의 수리를 위한 수리비용보다 현격히 저렴하여 전차의 유지비를 절감하는 이점이 있다.In addition, since the shape of the part is easy to produce, the production cost of the fixing member is significantly lower than the repair cost for repairing the pin, thereby reducing the maintenance cost of the tank.

Claims (3)

슈바디에 형성된 구멍에 충격완화를 위한 다수의 부싱이 장착된 핀이 삽입되는 전차궤도에 있어서,In the trajectory of the trajectory in which the pins with a plurality of bushings for shock mitigation are inserted into the holes formed in the body, 상기 핀의 양끝단에는 상기 부싱의 이탈을 방지하기 위한 고정부재가 장착되는 것을 특징으로 하는 전차용 핀의 부싱 이탈 방지 구조.Both ends of the pin is a bushing departure prevention structure of the pin for the tank, characterized in that the fixing member for preventing the departure of the bushing is mounted. 제 1항에 있어서, 상기 고정부재는 핀의 일측 반원을 덮는 상부링과;The method of claim 1, wherein the fixing member comprises: an upper ring covering one side semicircle of the pin; 상기 핀의 타측면을 덮는 하부링과;A lower ring covering the other side of the pin; 상기 상하부링을 결합시키는 결합재를 포함하여 이루어지는 것을 특징으로 하는 전차용 핀의 부싱 이탈 방지 구조.Bushing detachment prevention structure of the pin for the tank, characterized in that comprises a coupling material for coupling the upper and lower rings. 제 1항에 있어서, 상기 상부링은 핀의 일측 반원을 덮는 상부덮개와;According to claim 1, The upper ring and the top cover for covering the semi-circle of the pin; 상기 상부덮개의 양끝단에서 돌출 형성되는 상부결합면과;An upper coupling surface protruding from both ends of the upper cover; 상기 상부결합면 상에 형성되는 상부결합홀을 포함하여 구성되고,It is configured to include an upper coupling hole formed on the upper coupling surface, 상기 하부링은 상기 핀의 타측 반원을 덮는 하부덮개와;The lower ring includes a lower cover covering the other half circle of the pin; 상기 하부덮개의 양끝단에서 돌출 형성되어 상기 상부결합면과 면접하는 하부결합면과;A lower coupling surface protruding from both ends of the lower cover and interviewing the upper coupling surface; 상기 하부결합면 상에 형성되어 상기 상부결합홀과 일치하는 하부결합홀을 포함하여 구성되며,It is formed on the lower coupling surface and comprises a lower coupling hole coinciding with the upper coupling hole, 상기 결합재는 상기 상하부결합홀을 관통하는 볼트 및 상기 볼트와 나사 결합하는 너트를 포함하여 구성되는 것을 특징으로 하는 전차용 핀의 부싱 이탈 방지 구조.The coupling member is a bushing separation prevention structure of the pin for the tank, characterized in that it comprises a bolt penetrating the upper and lower coupling holes and the screw and the bolt.
KR10-2003-0012432A 2003-02-27 2003-02-27 Preventive structure for pin-bushing separation KR100514651B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR10-2003-0012432A KR100514651B1 (en) 2003-02-27 2003-02-27 Preventive structure for pin-bushing separation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR10-2003-0012432A KR100514651B1 (en) 2003-02-27 2003-02-27 Preventive structure for pin-bushing separation

Publications (2)

Publication Number Publication Date
KR20040077045A true KR20040077045A (en) 2004-09-04
KR100514651B1 KR100514651B1 (en) 2005-09-14

Family

ID=37363008

Family Applications (1)

Application Number Title Priority Date Filing Date
KR10-2003-0012432A KR100514651B1 (en) 2003-02-27 2003-02-27 Preventive structure for pin-bushing separation

Country Status (1)

Country Link
KR (1) KR100514651B1 (en)

Also Published As

Publication number Publication date
KR100514651B1 (en) 2005-09-14

Similar Documents

Publication Publication Date Title
US20080217994A1 (en) Idler for crawler track
KR20140074334A (en) Lower track of crawler excavator
KR100514651B1 (en) Preventive structure for pin-bushing separation
KR100342854B1 (en) Detachable pad
EP1253070B1 (en) Endless track and a manufacturing method thereof
US6820948B2 (en) Crawler shoe
KR102200876B1 (en) Caterpillar pad
KR100534365B1 (en) Structure of track shoe for a military vehicle
CN202107032U (en) Rubber trackboard with sand discharge hole
KR20070067493A (en) A caterpillar
KR20060098207A (en) A double pin track device using a center connector
KR20040081576A (en) detachable guide center assembly for track
KR101061454B1 (en) Shoe pad assembly for caterpilar vehicle
KR20070054925A (en) A caterpillar
KR100545765B1 (en) Caterpillar Bushing Structure
KR100571154B1 (en) Caterpillar Connector
KR100686913B1 (en) A shoe assembly for the caterpillar
KR200282677Y1 (en) Rubber Pad For Caterpillar
CN204978926U (en) A clamping rail device, track frame reach and dig rig soon for track frame
CN109501878B (en) Combined track shoe, track assembly, crawler running device and engineering machinery
KR100695239B1 (en) A shoe assembly for the caterpillar
JP2002321670A (en) Shoe for crawler belt
KR200219806Y1 (en) Exchangeable pad assembly for track
KR200369701Y1 (en) Lamp for working
KR20050093472A (en) A separable military vehicle rubber track

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: 20120405

Year of fee payment: 8

FPAY Annual fee payment

Payment date: 20130410

Year of fee payment: 9

FPAY Annual fee payment

Payment date: 20150811

Year of fee payment: 11

FPAY Annual fee payment

Payment date: 20160810

Year of fee payment: 12

FPAY Annual fee payment

Payment date: 20170811

Year of fee payment: 13

FPAY Annual fee payment

Payment date: 20180807

Year of fee payment: 14

FPAY Annual fee payment

Payment date: 20190806

Year of fee payment: 15