KR20090113608A - Lift device the use of large size vehicles - Google Patents

Lift device the use of large size vehicles Download PDF

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Publication number
KR20090113608A
KR20090113608A KR1020080039415A KR20080039415A KR20090113608A KR 20090113608 A KR20090113608 A KR 20090113608A KR 1020080039415 A KR1020080039415 A KR 1020080039415A KR 20080039415 A KR20080039415 A KR 20080039415A KR 20090113608 A KR20090113608 A KR 20090113608A
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KR
South Korea
Prior art keywords
lift
vehicle
cylinder
move
chain
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KR1020080039415A
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Korean (ko)
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안기천
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안기천
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Priority to KR1020080039415A priority Critical patent/KR20090113608A/en
Publication of KR20090113608A publication Critical patent/KR20090113608A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
    • B66F7/16—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F17/00—Safety devices, e.g. for limiting or indicating lifting force

Abstract

PURPOSE: A lift device for a large size vehicle is provided to allow maintenance of various sizes of vehicle by moving a rear lift back and forth depending on the length of a vehicle. CONSTITUTION: A lift device for a large size vehicle comprises a front lift(100), a rear lift(200), and a travel guide(300). The front lift is installed on the bottom of a cavity formed on the ground, and ascends and descends in the cavity. The rear lift is installed to be movable behind the front lift, and ascends and descends. The travel guide moves the rear lift to the front or back of a vehicle according to the body length of the vehicle which is placed on the top of the front and rear lifts.

Description

대형차용 리프트 장치{lift device the use of large size vehicles}Lift device the use of large size vehicles}

본 발명은 리프트에 관한 것으로, 특히 차량의 차체길이에 따라 후방리프트가 전.후로 이동하여 차량을 승강시키는 대형차용 리프트 장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lift, and more particularly, to a lift device for a large vehicle, in which a rear lift moves forward and backward according to a vehicle body length.

일반적으로 차량의 하부를 정비하기 위해서는 차량을 일정높이로 승강시켜 정비를 할 수 있도록 리프트장치를 사용한다.In general, in order to maintain the lower part of the vehicle, a lift device is used to maintain the vehicle by raising and lowering it to a certain height.

상기 리프트장치는 차량정비업체에서 주로 사용하고 있는 실정이며, 차량 하부의 정비작업 및 차량의 성능검사 등을 수행하는데 꼭 필요한 장치로서, 자동차와 같은 일반차용 리프트와 화물차나 버스와 같이 차체의 길이가 긴 대형차용 리프트가 있다.The lift device is mainly used by a vehicle maintenance company, and is an essential device for performing maintenance work on the lower part of a vehicle and performance test of the vehicle. The length of a vehicle body such as a car and a truck or a bus is increased. There is a long car lift.

상기 대형차용 리프트는, 지면에서 일정깊이로 형성된 공간에 화물차량을 승.하강시키기 위한 승.하강수단이 공간의 바닥면에서 일정높이 이격되게 구성되고, 상기 승.하강수단의 상부에는 화물차량이 탑재되어 차체를 지지하는 탑재대가 구성된다.The lift for a large vehicle, the lifting and lowering means for lifting and lowering the cargo vehicle in a space formed at a constant depth from the ground is configured to be spaced apart from a certain height from the bottom of the space, the cargo vehicle on the upper portion of the lifting and lowering means A mounting table is mounted to support the vehicle body.

또한, 상기 승.하강수단의 일측에는 제어부가 구성되어 화물차량의 승.하강을 제어하면서 정비작업을 수행하는 것이다.In addition, the control unit is configured on one side of the lifting and lowering means to perform maintenance work while controlling the lifting and lowering of the freight vehicle.

그러나 상기와 같은 대형차용 리프트 장치는, 차량을 승강시키는 승.하강수단이 공간의 바닥면에서 일정 높이 떠있는 상태이므로 차량의 하중을 견디지 못하고 낙하할 우려가 있어 안전성이 저하될 뿐만 아니라 차량의 차체길이에 따른 승.하강수단의 이동이 불가능하므로 정비할 수 있는 차량의 종류가 한정되어 비경제적인 문제점이 있었다.However, the lift device for a large vehicle as described above, because the lifting and lowering means for lifting the vehicle is floating at a certain height from the bottom of the space, the vehicle can not bear the load of the vehicle and fall, which may lower the safety as well as the vehicle body of the vehicle. Since the lifting and lowering means cannot be moved along the length, the types of vehicles that can be maintained are limited and thus there is an uneconomic problem.

이에 본 발명은, 상술한 바와 같은 종래의 제반결함을 감안하여 이루어진 것으로, 그 목적은 차량의 차체 길이만큼 이동안내부가 후방리프트를 전.후로 이동시켜 차체를 승.하강시키므로 다양한 크기의 차량정비가 가능하고 공간 바닥면에 설치된 전.후방리프트가 차량을 견고하게 지지하여 안전사고를 방지하는 대형차용 리프트 장치를 제공함에 있다.Accordingly, the present invention has been made in view of the above-mentioned conventional defects, and its object is to provide various sizes of vehicle maintenance by moving the rear guides forward and backward by moving the rear lift back and forth by the length of the vehicle body. It is possible to provide a lift device for a large vehicle that is capable of preventing a safety accident by firmly supporting the front and rear lifts installed at the bottom of the space.

이러한 목적을 달성하기 위한 본 발명은,The present invention for achieving this object,

지면에 일정깊이로 형성된 공간의 바닥면에 고정되어 승.하강하는 전방리프 트와;A front lift fixed to the bottom surface of the space formed at a predetermined depth on the ground to move up and down;

상기 전방리프트의 후방에 이동가능하게 설치되어 승.하강하는 후방리프트와;A rear lift movably installed at the rear of the front lift to move up and down;

상기 전.후방리프트의 상부에 위치되는 차량의 차체길이에 따라 후방리프트를 차량의 전.후 방향으로 이동시키는 이동안내부가 구비되는 것을 특징으로 하는 것이다.The moving guide unit for moving the rear lift in the front and rear directions of the vehicle is provided according to the vehicle body length of the vehicle located above the front and rear lifts.

본 발명은 차량의 차체 길이에 따라 후방리프트가 이동안내부에 의해 전.후로 이동하므로 다양한 크기의 차량 정비가 가능하여 작업성이 향상되고 경제적일 뿐만 아니라 전.후방리프트가 공간의 바닥면에 설치되므로 차량을 승강시키더라도 전.후방리프트가 차량을 견고하게 지지하여 작업자의 안전사고를 미연에 방지하므로 안전성을 향상시키는 효과가 있다.According to the present invention, since the rear lift moves forward and backward by the moving guide part, the vehicle can be maintained in various sizes, which improves workability and is economical, and the front and rear lifts are installed on the floor of the space. Therefore, even if the vehicle is lifted, the front and rear lifts firmly support the vehicle, thereby preventing safety accidents of the worker, thereby improving safety.

본 발명은, 지면에 일정깊이로 형성된 공간(10)의 바닥면(11)에 고정되어 승.하강하는 전방리프트(100)가 구성되고, 상기 전방리프트(100)의 후방에 이동가능하게 설치되어 승.하강하는 후방리프트(200)가 구성되며, 상기 전.후방리프트(100)(200)의 상부에 위치되는 차량의 차체길이에 따라 후방리프트(200)를 차량의 전.후 방향으로 이동시키는 이동안내부(300)가 구성되는 것으로, 이를 좀 더 구 체적으로 설명하면 다음과 같다.The present invention, the front lift 100 is fixed to the bottom surface 11 of the space 10 formed to a predetermined depth on the ground is configured to move up and down, is installed to be movable behind the front lift 100 The rear lift 200 is configured to move up and down, and the rear lift 200 is moved in the front and rear directions of the vehicle according to the vehicle body length of the vehicle positioned on the front and rear lifts 100 and 200. Movement guide unit 300 is configured, which will be described in more detail as follows.

상기 전방리프트(100)는, 상기 차량을 승.하강시키도록 유압펌프(P)에서 유입되는 유압을 공급받는 실린더(110)가 구비되고, 상기 실린더(110)로 공급된 유압으로 차량을 승.하강시키는 실린더로드(120)가 구비되며, 상기 실린더로드(120)의 상부에 차량이 탑재되는 탑재대(130)가 구비된다.The front lift 100 is provided with a cylinder (110) for receiving the hydraulic pressure flowing from the hydraulic pump (P) so as to lift and lower the vehicle, and the vehicle is supplied by the hydraulic pressure supplied to the cylinder (110). A cylinder rod 120 for lowering is provided, and a mounting table 130 on which a vehicle is mounted is provided on the cylinder rod 120.

상기 후방리프트(200)는, 상기 차량을 승.하강시키도록 유압펌프(P)에서 유입되는 유압을 공급받는 실린더(210)가 구비되고, 상기 실린더(210)로 공급된 유압으로 차량을 승.하강시키는 실린더로드(220)가 구비되며, 상기 실린더로드(220)의 상부에 차량이 탑재되는 탑재대(230)가 구비되고, 상기 실린더(210)의 하단부에 이동안내부(300)의 동력에 의해 전.후방으로 이동하도록 레일(240)이 구비되며, 상기 실린더(210)의 상부 양측에 실린더(210)가 이동하도록 이동로울러(250)가 구비된다.The rear lift 200 is provided with a cylinder 210 for receiving the hydraulic pressure flowing from the hydraulic pump (P) so as to lift and lower the vehicle, and lift the vehicle by the hydraulic pressure supplied to the cylinder (210). A cylinder rod 220 for lowering is provided, and a mounting table 230 on which a vehicle is mounted is provided on an upper portion of the cylinder rod 220, and the power of the movement guide part 300 is provided at a lower end of the cylinder 210. The rail 240 is provided to move forward and backward by the movement, and the movement roller 250 is provided to move the cylinder 210 on both upper sides of the cylinder 210.

상기 이동안내부(300)는, 상기 후방리프트(200)로 동력을 전달하는 감속모터(311)가 구비되고, 상기 감속모터(311)의 동력에 의해 정,역회전하는 체인(312)이 구비되며, 상기 체인(312)의 종단부에 체인(312)의 회전을 안내하는 안내로울러(313)가 구비되고, 상기 체인(312)의 단부가 실린더(210)의 일측에 고정되어 체인(312)의 회전방향에 따라 실린더(210)가 이동하도록 고정부재(314)가 구비되는 동력전달부재(310)가 구성되며, 상기 후방리프트(200)의 하부에 일정간격으로 형성되어 후방리프트(200)의 이동을 안내하는 안내레일(321)이 구비되고, 상기 후방리프트(200)의 양측 지면에 요입되어 실린더(210)의 이동을 안내하는 이동안내 홈(322)이 구비되는 이동안내부재(320)가 구성된다.The movement guide unit 300 is provided with a reduction motor 311 for transmitting power to the rear lift 200, the chain 312 is provided with a forward, reverse rotation by the power of the reduction motor 311. And a guide roller 313 for guiding the rotation of the chain 312 at an end of the chain 312, and an end of the chain 312 is fixed to one side of the cylinder 210 so that the chain 312 is provided. The power transmission member 310 is provided with a fixing member 314 to move the cylinder 210 according to the rotation direction of the, is formed at a predetermined interval below the rear lift 200 of the rear lift 200 The guide rail 321 is provided to guide the movement, the movement guide member 320 is provided in the both sides of the rear lift 200 is provided with a movement guide groove 322 for guiding the movement of the cylinder 210 It is composed.

이하 첨부된 도면의 의거하여 본 발명의 일실시예를 상세하게 설명한다.Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

먼저, 도 4에 도시된 바와 같이, 전.후방리프트(100)(200)의 상부로 정비를 받고자 하는 차량(C)이 위치하게 된다.First, as shown in Figure 4, the vehicle (C) to be maintained in the upper portion of the front and rear lift (100, 200) is located.

작업자는 상기 차량(C)의 차체의 길이를 미리 파악한 후, 지면에 위치되어 있는 전,후방리프트(100)(200)의 간격보다 차체의 길이가 길 경우, 작업자가 제어부(미도시)를 조작하게 되면, 제어부의 전원에 의해 감속모터(311)가 정방향으로 회전하게 되고, 실린더(210)의 일측에 고정부재(314)에 의해 고정된 체인(310)이 회전하여 후방리프트(200)와 같이 전방리프트(100)의 반대방향으로 이동하게 된다.After the operator grasps the length of the vehicle body of the vehicle C in advance, when the vehicle body length is longer than the distance between the front and rear lifts 100 and 200 positioned on the ground, the operator operates the controller (not shown). In this case, the reduction motor 311 rotates in the forward direction by the power of the controller, and the chain 310 fixed by the fixing member 314 is rotated on one side of the cylinder 210 to rotate as shown in the rear lift 200. It is moved in the opposite direction of the front lift (100).

이때, 후방리프트(200)의 실린더(210) 하부에 형성된 레일(240)은 바닥면(11)에 형성된 안내레일(321)에 안내되어 이동함과 동시에 실린더(210)의 양측에 형성된 이동로울러(250)는 공간(10)의 양측에 형성된 이동안내홈(322)에 안착되어 이동하면서 후방리프트(200)의 이동을 안내하는 것이다.At this time, the rail 240 formed on the lower portion of the cylinder 210 of the rear lift 200 is guided to the guide rail 321 formed on the bottom surface 11 to move and at the same time the movement roller formed on both sides of the cylinder 210 ( 250 is seated in the movement guide groove 322 formed on both sides of the space 10 to guide the movement of the rear lift 200.

상기 후방리프트(200)가 미리 파악한 위치에 도달하게 되면 작업자는 제어부의 조작을 중지하여 이동을 정지시킨다.When the rear lift 200 reaches a position previously identified, the operator stops the operation of the controller to stop the movement.

상기와 같이 후방리프트(200)를 이동시켜 차량(C)의 차체 저면에 위치하게 되면, 작업자는 제어부를 조작하여 유압펌프(P)를 작동시키게 된다.When the rear lift 200 is moved as described above and positioned on the bottom of the vehicle body of the vehicle C, the operator operates the control unit to operate the hydraulic pump P.

상기 유압펌프(P)가 작동하게 되면 전방리프트(100)와 후방리프트(200)의 실린더(110)(210)에 각각 유압을 공급하게 되고, 공급되는 유압으로 실린더로 드(120)(220)를 승강시킴과 동시에 차량(C)을 승강시켜 차량(C)의 정비작업을 수행하게 된다.When the hydraulic pump P is operated, the hydraulic pressure is supplied to the cylinders 110 and 210 of the front lift 100 and the rear lift 200, respectively, and the cylinder rods 120 and 220 are supplied with hydraulic pressure. Lifting the vehicle and at the same time lifting the vehicle (C) to perform the maintenance work of the vehicle (C).

상기 차량정비를 완료한 후, 작업자는 제어부를 조작하여 전.후방리프트(100)(200)의 실린더로드(120)(220)를 하강시키고, 차량(C)을 지면에 위치하도록 하여 다음 정비순서를 대기하게 된다.After the vehicle maintenance is completed, the operator operates the control unit to lower the cylinder rods 120 and 220 of the front and rear lifts 100 and 200 and to position the vehicle C on the ground to perform the next maintenance procedure. Will wait.

또한, 정비하고자 하는 차량(C)의 차체가 작을 경우, 도 5에 도시된 바와 같이, 작업자는 제어부를 조작하여 감속모터(311)를 역방향으로 회전시키게 되면, 실린더(210)의 일측에 고정부재(314)에 의해 고정된 체인(312)이 회전하여 후방리프트(200)와 같이 전방리프트(100) 측으로 거리를 좁히면서 이동하게 된다.In addition, when the vehicle body of the vehicle (C) to be maintained is small, as shown in Figure 5, when the operator operates the control unit to rotate the reduction motor 311 in the reverse direction, the fixing member on one side of the cylinder 210 The chain 312 fixed by 314 is rotated to move while narrowing the distance to the front lift 100 side like the rear lift 200.

상기와 같이 후방리프트(200)를 전방리프트(100)측으로 이동시킨 후, 유압펌프(P)를 작동시켜 전.후방리프트(100)(200)의 실린더로드(120)(220)를 승감시킴과 동시에 차량을 승강시켜 차량(C)의 정비작업을 수행하게 된다.After moving the rear lift 200 to the front lift 100 as described above, by operating the hydraulic pump (P) to lift the cylinder rods 120, 220 of the front and rear lifts (100) (200) and At the same time, the vehicle is elevated to perform the maintenance work of the vehicle (C).

상기 차량정비를 완료한 후, 작업자는 제어부를 조작하여 전.후방리프트(100)(200)의 실린더로드(120)(220)를 하강시키고, 차량(C)을 지면에 위치하도록 하여 다음 정비순서를 대기하게 된다.After the vehicle maintenance is completed, the operator operates the control unit to lower the cylinder rods 120 and 220 of the front and rear lifts 100 and 200 and to position the vehicle C on the ground to perform the next maintenance procedure. Will wait.

도 1은 본 발명의 사시도1 is a perspective view of the present invention

도 2는 본 발명의 측단면도2 is a side cross-sectional view of the present invention

도 3은 본 발명의 정단면도3 is a front cross-sectional view of the present invention.

도 4는 차량의 길이가 길 경우의 작동상태도4 is an operating state when the length of the vehicle is long

도 5는 차량의 길이가 작을 경우의 작동상태도5 is an operation state when the length of the vehicle is small

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

100: 전방리프트 110: 실린더100: front lift 110: cylinder

120: 실린더로드 130: 탑재대120: cylinder rod 130: mounting table

200:후방리프트 210: 실린더200: rear lift 210: cylinder

220: 실린더로드 230: 탑재대220: cylinder rod 230: mounting table

240: 레일 250: 이동로울러240: rail 250: moving roller

300: 이동안내부 310: 동력전달부재300: movement guide 310: power transmission member

311: 감속모터 312: 체인311: Reduction Motor 312: Chain

313: 안내로울러 314: 고정부재313: guide roller 314: fixing member

320: 이동안내부재 321: 안내레일320: movement guide member 321: guide rail

322: 이동안내홈322: Moving guide home

Claims (4)

지면에 일정깊이로 형성된 공간의 바닥면에 고정되어 승.하강하는 전방리프트와;A front lift fixed to the bottom surface of the space formed at a predetermined depth on the ground to move up and down; 상기 전방리프트의 후방에 이동가능하게 설치되어 승.하강하는 후방리프트와;A rear lift movably installed at the rear of the front lift to move up and down; 상기 전.후방리프트의 상부에 위치되는 차량의 차체길이에 따라 후방리프트를 차량의 전.후 방향으로 이동시키는 이동안내부가 구성되는 것을 특징으로 하는 대형차용 리프트장치.And a movement guide unit configured to move the rear lift in the front and rear directions of the vehicle according to the vehicle body length of the vehicle positioned above the front and rear lifts. 청구항 1에 있어서, 전방리프트는,The method according to claim 1, wherein the front lift, 상기 차량을 승.하강시키도록 유압펌프에서 유입되는 유압을 공급받는 실린더가 구비되고, 상기 실린더로 공급된 유압으로 차량을 승.하강시키는 실린더로드가 구비되며, 상기 실린더로드의 상부에 차량이 탑재되는 탑재대가 구비되는 것을 특징으로 하는 대형차용 리프트 장치.A cylinder is provided to receive the hydraulic pressure flowing from the hydraulic pump to raise and lower the vehicle, and a cylinder rod for raising and lowering the vehicle with the hydraulic pressure supplied to the cylinder is provided, and the vehicle is mounted on an upper portion of the cylinder rod. Lift device for a large vehicle, characterized in that the mounting table is provided. 청구항 1에 있어서, 후방리프트는,The method of claim 1, wherein the rear lift, 상기 차량을 승.하강시키도록 유압펌프에서 유입되는 유압을 공급받는 실린 더가 구비되고, 상기 실린더로 공급된 유압으로 차량을 승.하강시키는 실린더로드가 구비되며, 상기 실린더로드의 상부에 차량이 탑재되는 탑재대가 구비되고, 상기 실린더의 하단부에 이동안내부의 동력에 의해 전.후방으로 이동하도록 레일이 구비되며, 상기 실린더의 상부 양측에 실린더가 이동하도록 이동로울러가 구비되는 것을 특징으로 하는 대형차용 리프트장치.A cylinder is provided to receive the hydraulic pressure flowing from the hydraulic pump to raise and lower the vehicle, and a cylinder rod for raising and lowering the vehicle with the hydraulic pressure supplied to the cylinder is provided. The mounting table is provided, the rail is provided at the lower end of the cylinder to move forward and backward by the power of the movement guide portion, and the moving roller is provided on both sides of the upper portion of the cylinder to move the cylinder. Lift device. 청구항 1에 있어서, 이동안내부는,The method of claim 1, wherein the movement guide unit, 상기 후방리프트로 동력을 전달하는 감속모터가 구비되고, 상기 감속모터의 동력에 의해 정,역회전하는 체인이 구비되며, 상기 체인의 종단부에 체인의 회전을 안내하는 안내로울러가 구비되고, 상기 체인의 단부가 실린더의 일측에 고정되어 체인의 회전방향에 따라 실린더가 이동하도록 고정부재가 구비되는 동력전달부재와;A reduction motor is provided to transfer power to the rear lift, a chain is provided to forward and reverse rotation by the power of the reduction motor, and a guide roller is provided at the end of the chain to guide rotation of the chain. A power transmission member having an end portion of the chain fixed to one side of the cylinder, the fixing member being provided to move the cylinder in a rotational direction of the chain; 상기 후방리프트의 하부에 일정간격으로 형성되어 후방리프트의 이동을 안내하는 안내레일이 구비되고, 상기 후방리프트의 양측 지면에 요입되어 실린더의 이동을 안내하는 이동안내홈이 구비되는 이동안내부재가 구성되는 것을 특징으로 하는 대형차용 리프트장치.The guide rail is formed at a predetermined interval in the lower portion of the rear lift to guide the movement of the rear lift, and the movement guide member is provided on both sides of the rear lift to provide a movement guide groove for guiding the movement of the cylinder. The lift device for a large car, characterized in that it becomes.
KR1020080039415A 2008-04-28 2008-04-28 Lift device the use of large size vehicles KR20090113608A (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160003662U (en) * 2016-09-13 2016-10-24 공주대학교 산학협력단 Apparatus for car lift having adjustable wheelbase device
CN106144953A (en) * 2016-08-20 2016-11-23 安徽机电职业技术学院 Motor vehicle repair car body lowering or hoisting gear

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106144953A (en) * 2016-08-20 2016-11-23 安徽机电职业技术学院 Motor vehicle repair car body lowering or hoisting gear
CN106144953B (en) * 2016-08-20 2019-10-25 利辛县雨若信息科技有限公司 Motor vehicle repair car body lifting device
KR20160003662U (en) * 2016-09-13 2016-10-24 공주대학교 산학협력단 Apparatus for car lift having adjustable wheelbase device

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