WO2020071844A1 - 신축 가능한 붐대가 구비된 포크레인 - Google Patents
신축 가능한 붐대가 구비된 포크레인Info
- Publication number
- WO2020071844A1 WO2020071844A1 PCT/KR2019/013022 KR2019013022W WO2020071844A1 WO 2020071844 A1 WO2020071844 A1 WO 2020071844A1 KR 2019013022 W KR2019013022 W KR 2019013022W WO 2020071844 A1 WO2020071844 A1 WO 2020071844A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- boom
- variable
- fork lane
- hydraulic cylinder
- outrigger
- Prior art date
Links
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/30—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom
- E02F3/306—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom with telescopic dipper-arm or boom
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/08—Superstructures; Supports for superstructures
- E02F9/085—Ground-engaging fitting for supporting the machines while working, e.g. outriggers, legs
Definitions
- the present invention relates to a fork lane provided with a telescopic boom, and more specifically, it is possible to expand and contract the working radius by varying the working radius according to the depth or digging radius excavated by the telescopic boom during drilling of the ground. It relates to a fork lane equipped with a boom.
- fork lanes mainly work such as excavating and filling the ground during construction and civil works, and loading soil into a dump truck.
- the fork lane is used in a wide variety of industrial sites because it can perform various tasks such as crushing stones, lifting heavy objects, or lifting objects using tongs.
- a crane is a mechanical device that is mainly used for lifting, moving up and down, left and right, and forward and backward, and is very useful when carrying out operations such as transporting heavy objects or transporting the goods to a high place.
- the crane was often fixedly installed and used in the work place, but in this case, there are problems in that various inconveniences and utilization are deteriorated. Recently, the crane can move directly to the work place to perform work. Expression cranes are often used.
- the traveling crane is very useful in the case of scaffolding work inside and outside the building, construction and maintenance work of telecommunication facilities, bridge inspection and repair work, because it can safely and conveniently work in high places and has mobility. Used aerial vehicles are being used a lot.
- the aerial work vehicle is a truck or a truck, a base frame installed on the chassis of the cargo vehicle, a crane body mounted on the base frame, and a front and rear of the base frame so that work can be stably supported on the floor. It consists of an outrigger installed.
- the pillar frame supported on the upper part of the base frame, and the multi-stage boom in which a plurality of steel pipes are combined with an antenna type so that one end is rotatably coupled to the other end of the pillar frame and the other end is telescopic. , Consisting of a boarding box installed at the end of the multi-stage boom.
- the method of removing rock or rock is to use a hydraulic vibration crusher mounted on a fork lane to crush and remove the rock, to explode the rock or rock using explosives, and to remove the rock or rock.
- a hole is formed and a hole is separated and then removed using a separation plate spreading from side to side by the advancement of a hydraulic wedge into the hole, and an excavation groove having a diameter of 150 mm or more is usually formed in a rock or rock using a cylindrical cutter rotary excavator. Thereafter, the rock in the excavation groove is pulled out when the cylindrical cutter is raised, and accordingly, there is a method of removing the chunk of rock after crushing it by inserting a hydraulic large capacity rock drill into the hole of the rock.
- the fork lane can be moved by a wheel or a caterpillar, and is operated by a hydraulic line connected to an oil pump, so it is used not only to excavate the ground using strong power, but also to lift and lift heavy objects to a predetermined height by strong power. do.
- the tower crane is installed in the vertical direction and is used to elevate a relatively light weight in the vertical direction, but the operation and the lifting speed are slow, so the working speed decreases.
- Korean Patent Registration No. 0790919 discloses an 'infinite track traveling crane'.
- the caterpillar traveling type crane according to the Republic of Korea Patent Registration No. 0790919 is a vehicle that is driven using a caterpillar, a base frame installed on the upper part of the vehicle, and one end portion is rotatably supported on the base frame.
- the other end portion includes a crane body to which the boarding box is connected, a plurality of outriggers respectively installed on both front and rear sides of the base frame, and a rotating device for rotating the outrigger at a predetermined angle from the base frame.
- the rotating device is provided with a plurality of horizontal connecting rods, one end of which is rotatably coupled to the base frame using a hinge axis at both front and rear ends of the base frame, and one pair at the front and rear ends of the base frame crossing each other.
- Both ends of the base frame and the outrigger include hydraulic cylinders that are rotatably coupled to each other using a pair of hinge shafts.
- the outrigger includes a first vertical swivel having one end rotatably coupled to the other end of the horizontal connecting rod using a first hinge shaft, and one end to the other end of the first vertical swivel. 2 It is rotatably coupled using a hinge shaft and includes a second vertical swivel on which the base plate is installed at the other end.
- one end is rotatably coupled using a third hinge axis at an upper point away from the first hinge axis and the other end is in contact with the second hinge axis in the first vertical swivel.
- a first hydraulic cylinder that is rotatably coupled using a fourth hinge shaft at a point above a predetermined distance, and a fifth hinge at one end at a point at a predetermined distance downward from the second hinge axis in the first vertical swivel
- a second hydraulic cylinder which is rotatably coupled using an axis and has one end rotatably coupled using a sixth hinge axis at a predetermined distance downward from the third hinge axis in the second vertical rotation table.
- the forkrain mounted excavation bottom heavy load crane device is a coupling member having a structure so that the body can be hinged to the bucket hydraulic coupling portion of the forkrain, a rear side plate on the front side of the coupling member
- the welding is coupled, the square box opened to the front surface, the wire is wound by being rotatably coupled by a hydraulic motor to the center of a pair of vertical plates installed facing each other toward the front side on the rear side plate in the square box.
- Wire winding shaft, a hydraulic hose is provided so that the hydraulic line hose drawn from the hydraulic motor can be coupled to the external hydraulic line coupling portion of the fork lane.
- a guide shaft is provided rotatably coupled to the center of the guide member to guide winding of the wire of the wire winding shaft.
- a roller in contact with the roller is installed on the inner surface of the protrusion protruding on the side surface of the outer circumferential surface of the pair of half-moon-type guide members, and a tip-shaped guide member for guiding the wire through the end of the wire guided to the guide shaft, the de-shaped ruler It consists of a ring member coupled to the end of the wire that has penetrated through the lower end of the mold guide member.
- the caterpillar traveling crane according to the prior art 1 has the advantage of being capable of carrying out aerial work or cargo transportation by varying the length by the extension boom of the crane body installed in the base frame of the vehicle, There is a problem in that the rigidity of a plurality of extension booms cannot be maintained to move, and as the length of the extension boom is withdrawn, the load of 10 tons or more cannot be moved.
- the excavation bottom weight loading crane device equipped with a fork lane according to the prior art 2 has an advantage of installing a reinforcing bar reinforcement device at the tip of each end arm of the fork lane, so as to increase the weight without twisting the wire rope.
- a reinforcing bar reinforcement device installed at the tip of each end arm of the fork lane, so as to increase the weight without twisting the wire rope.
- An object of the present invention is to solve the above problems, to provide a fork lane equipped with a flexible boom that can lift a weight of 10 tons or more by a boom that is variable in length instead of the arm of the fork lane.
- Another object of the present invention is to provide a forkrain equipped with a telescopic boom that allows the telescopic boom to be driven by an engine of a forkrain to lift and lift heavy weights up and down, and rotate the boom to a desired angle. will be.
- the fork lane provided with the telescopic boom according to the present invention is provided with rotatable caterpillars on both sides of the left and right sides so as to be movable, and a turntable is provided on the upper part of the caterpillar.
- a support hydraulic cylinder installed on the bottom surface of the variable boom to have rigidity to withstand the load applied to the variable boom;
- variable boom stand is installed on the front surface of the engine unit so as to be rotatable in the vertical direction;
- a second boom stand movably installed inside the first boom stand;
- a rope drum installed on the rear side of the first boom; It characterized in that it comprises; a rope installed to elevate the load mounting portion from the rope drum through the tip of the second boom.
- the hydraulic cylinder is a first hydraulic cylinder installed on one side of the variable boom; A second hydraulic cylinder installed on the other side of the variable boom; One end of the first hydraulic cylinder and the second hydraulic cylinder is rotatably installed on the front surface of the engine unit, and the other ends of the first hydraulic cylinder and the second hydraulic cylinder are configured to firmly support the first boom. It is characterized in that it comprises a; fixed bracket disposed on the bottom surface of the boom.
- the load mounting portion is a main hook that is installed to be elevated on the tip of the variable boom; It includes; auxiliary hook is installed to be able to elevate at the front end of the variable boom; includes, the lower mounting portion is a square bar that is installed on the main hook or auxiliary hook so as to contain a predetermined amount of soil of the excavated ground; It characterized in that it comprises a; opening and closing plate rotatably installed on the bottom surface of the square gourd.
- the outrigger is a front outrigger installed in front of the fork lane; A rear outrigger installed at the rear of the fork lane; and the front outrigger and the rear outrigger are installed through the caterpillar; It characterized in that it comprises; a hydraulic cylinder that is vertically installed at both ends of the frame.
- the fork lane provided with the telescopic boom it is possible to lift the cargo from 10 to 50 tons using the engine part power of the hydraulically driven fork lane, and the main hook of the load mounting part Alternatively, the load can be stably lifted by the auxiliary hook, and the working radius can be adjusted by the variable boom bar to secure an extended working radius, and the fork lane can be adjusted by adjusting the working radius by the variable boom bar and adjusting the angle of the variable boom bar. The effect of being able to work regardless of the working area is obtained according to the rotation of.
- the fork lane provided with the telescopic boom it is possible to work in a state in which the fork lane is more stable by the outrigger installed through the caterpillar, and the road is narrow due to the caterpillar to drive the work site It can be moved to, and the effect that the variable boom stand can be firmly supported by a supporting hydraulic cylinder is obtained.
- FIG. 1 is a front view showing a fork lane equipped with a telescopic boom according to a preferred embodiment of the present invention
- Figure 2 is a plan view showing a fork lane equipped with a telescopic boom according to a preferred embodiment of the present invention
- Figure 3 is a rear view showing a fork lane equipped with a telescopic boom according to a preferred embodiment of the present invention
- Figure 4 is a front view showing a fork lane equipped with a telescopic boom according to another preferred embodiment of the present invention
- FIG. 5 is a front view showing a state in which the boom of the fork lane equipped with a telescopic boom according to a preferred embodiment of the present invention
- FIG. 6 is a plan view showing a state in which the boom of the fork lane equipped with a telescopic boom according to a preferred embodiment of the present invention is extended.
- the fork lane provided with the telescopic boom is provided with a caterpillar 11 rotatable on both left and right sides so as to be movable, and a turntable 12 is provided on the caterpillar 11.
- the fork lane 10 provided with the driver's seat 13 and the engine 14 installed on the turntable 12, and the variable boom stand 20 installed to be variable in length in front of the engine 14 ,
- Support hydraulic cylinder 30 installed on the bottom surface of the variable boom stand 20 so as to have a rigidity to withstand the load applied to the variable boom stand 20, the load installed to be elevated at the tip of the variable boom stand 20
- Mounting portion 40 the fork lane 10 includes an outrigger 50 that is installed on the front and rear of the fork lane 10 so as to be firmly supported.
- the fork lane provided with the telescopic boom stably supports the fork lane 10 by the outriggers 50 installed on both right and left sides of the fork lane 10, as well as the length of the variable boom 20.
- the outriggers 50 installed on both right and left sides of the fork lane 10, as well as the length of the variable boom 20.
- FIG. 1 is a front view showing a fork lane equipped with a stretchable boom according to a preferred embodiment of the present invention
- Figure 2 is a plan view showing a fork lane equipped with a stretchable boom according to a preferred embodiment of the present invention
- Figure 3 Is a rear view showing a fork lane equipped with a telescopic boom according to a preferred embodiment of the present invention.
- the fork lane provided with a telescopic boom is a fork 10 that can be moved by a caterpillar 11, an engine part of the fork lane 10 14)
- a variable boom stand (20) installed variable in length on the front surface
- a hydraulic cylinder (30) for support installed on the bottom surface of the variable boom stand (20) to have rigidity to withstand the load or stress applied to the variable boom stand (20)
- a load mounting portion 40 that is installed to move a load to be moved to the front end of the variable boom stand 20 and an outrigger installed to stably support the fork lane 10 when working with the fork lane 10 50).
- the fork lane 10 is provided with a caterpillar 11 so as to be movable, and may be made of a wheel to be movable in addition to the caterpillar 11.
- a turntable 12 is installed between the caterpillars 11 of the fork lane 10, and a driver's seat 13 on which the fork lane 10 is moved and operated according to the operation is installed on the turn table 12.
- one side of the driver's seat 13 is provided with an engine unit 14 that generates a driving force, and has a load corresponding to the load applied to the load mounting unit 40 to keep the fork lane 10 stable. 15) is installed.
- the counterweight 15 is installed at the rear of the engine unit 14 to prevent the conduction of the fork lane 10 and the like from the load applied to the load mounting unit 40.
- a variable boom stand 20 is installed on the front surface of the engine part 14.
- the variable boom stand 20 is a first boom stand 21 installed on the front of the engine part 14 so as to be rotatable in a vertical direction, and a second boom stand movably installed inside the first boom stand 21 ( 22), the rope drum (23) installed on the rear of the first boom stand (21), the rope drum (23) installed through the tip of the second boom stand (22) to install the load mounting unit (40) It includes a rope (24).
- variable boom stand 20 is for allowing work to be made regardless of the working radius of the fork lane 10, the variable boom stand 20 is a first boom stand 21 and the front of the engine unit 14 and the A rope drum wound around the rope 24 according to the variable lengths of the second boom stand 22 and the first boom stand 21 and the second boom stand 22 which are movably installed inside the first boom stand 21. (23) and a rope (24) wound around the rope drum (23).
- the first boom stand 21 and the second boom stand 22 are made of a predetermined length, the first boom stand 21 is made of a length of about 10 to 15m, the length of the second boom stand 22 is about 10 It consists of a length of ⁇ 14m. More preferably, the length of the first boom stand 21 is made of 13m, and the length of the second boom stand 22 is made of 12m.
- first boom stand 21 and the second boom stand 22 can be varied as necessary.
- first boom stand 21 is rotatably installed on the front surface of the engine unit 14, and the second boom stand 22 is movably installed inside the first boom stand 21.
- a rope drum 23 in which the rope 24 is wound is installed at one end of the first boom stand 21, a rope 24 is wound in the rope drum 23, and the rope 24 is a rope drum ( It is wound or released according to the rotation of 23).
- stoppers 25 are installed at the front ends of the first boom stand 21 and the second boom stand 22, respectively.
- the rope 24 wound on the rope drum 23 is connected to and installed from the rope drum 23 to the load mounting portion 40 so as to elevate the load mounting portion 40.
- variable boom stand 20 On the bottom surface of the variable boom stand 20, a hydraulic cylinder 30 for support is installed to support the variable boom stand 20 more stably.
- the supporting hydraulic cylinder 30 is a first hydraulic cylinder 31 installed on one side of the variable boom stand 20, a second hydraulic cylinder 32 installed on the other side of the variable boom stand 20, the first One end of the hydraulic cylinder 31 and the second hydraulic cylinder 32 is rotatably installed on the front surface of the engine unit 14, and the first hydraulic cylinder 31 and the second hydraulic cylinder 32 The other end includes a fixing bracket 33 disposed on the bottom surface of the first boom stand 21 to firmly support the first boom stand 21.
- the support hydraulic cylinder 30 is installed on the bottom surface of the first boom stand 21 and is installed to reinforce the rigidity of the first boom stand 21.
- the hydraulic cylinder 30 for the support is a first hydraulic cylinder 31 is installed on one side of the first boom stand 21, the second hydraulic cylinder 32 is installed on the other side of the first boom stand 21.
- the first hydraulic cylinder 31 and the second hydraulic cylinder 32 are installed to be rotated in a vertical direction together with the variable boom 20, and the front ends of the first hydraulic cylinder 31 and the second hydraulic cylinder 32 In the fixing bracket 33 is installed to firmly support the first boom stand 21.
- a load mounting portion 40 for lifting heavy objects is installed at the front end of the variable boom stand 20.
- the load mounting portion 40 includes a main hook 41 that is installed to be elevated at the tip of the variable boom stand 20, and an auxiliary hook 42 that is installed to be elevated at the tip of the variable boom stand 20.
- the main hook 41 is installed so as to lift the cargo such as soil due to the excavation of the ground, and the auxiliary hook 42 is mounted to the bucket or square gourd, etc., installed on the main hook 41 more stably It is prepared to be.
- FIG. 4 is a front view showing a fork lane equipped with a telescopic boom according to another preferred embodiment of the present invention.
- the lower mounting portion 40 is installed in the main hook 41 or the auxiliary hook 42 so as to contain a predetermined amount of soil of the excavated ground, the square gourd 43, the It includes an opening and closing plate 44 rotatably installed on the bottom surface of the square gourd 43.
- the square gourd 43 is capable of holding the excavated soil or cargo, and the square gourd 43 is made of a predetermined size to contain the excavated soil, and the bottom surface of the square gourd 43 is An opening / closing plate 44 for opening and closing is provided.
- the opening and closing plate 44 is rotatably installed on the bottom surface of the square gourd 43, and the opening and closing plate 44 may be provided with a cylinder (not shown) for opening and closing the opening and closing plate 44.
- the fork lane 10 is provided with an outrigger 50 to be stably positioned.
- the outrigger 50 is composed of a front outrigger 51 installed in front of the forkrain 10, a rear outrigger 52 installed in the rear of the forkrain 10, and the front outrigger 51 ) And the rear outrigger 52 include a frame 53 installed through the caterpillar 11 and a hydraulic cylinder 54 vertically installed at both ends of the frame 53.
- a front outrigger 51 is installed at the front of the fork lane 10 to stably maintain the fork lane 10, and a rear outrigger at the rear of the fork lane 10 to stably maintain the fork lane 10 ( 52) is installed.
- the front outrigger 51 and the rear outrigger 52 are provided with frames 53 penetrating both endless tracks 11, and hydraulic cylinders 54 are installed at both ends of the frames 53, respectively.
- Figure 5 is a front view showing a state in which the boom of the fork lane equipped with a telescopic boom according to a preferred embodiment of the present invention
- Figure 6 is a boom of the fork lane equipped with a telescopic boom according to a preferred embodiment of the present invention Is a plan view showing a stretched state.
- the fork lane equipped with a telescopic boom will allow the operator to board the driver's seat 13 and move to the work site, where the hydraulic pressure of the outrigger 50 The cylinder 54 is moved in an elevated state.
- the worker reaches the work site, and the outrigger 50 installed on the fork lane 10 is seated on the ground. That is, the hydraulic cylinder 54 is driven by the hydraulic pressure supplied from the engine unit 14, the hydraulic cylinder 54 is lowered to the ground from both sides of the front outrigger 51 and the rear outrigger 52, respectively. And settle down.
- the fork lane 10 is lifted to a predetermined height from the ground, and the fork lane 10 is stably installed by the outrigger 50.
- the operator varies the length of the variable boom stand 20 according to the working environment. That is, since the first boom stand 21 has a length of approximately 10 to 15 m, when the working radius is within 15 m, the lifting work of the cargo is performed while the second boom stand 22 is folded.
- variable boom stand 20 can be extended to a length of up to 25m to expand the working radius.
- variable boom stand 20 Even if the length of the variable boom stand 20 is extended, since the hydraulic cylinders 31 and 32 for supporting are installed on the bottom surface of the first boom stand 21, it can withstand the load and stress applied to the variable boom solution 20. You have a strong stiffness.
- the supporting hydraulic cylinder 30 is also inclined at a predetermined angle to support the variable boom stand 20.
- the second boom stand 22 of the variable boom stand 20 has a square bar 43 on the main hook 41 or the auxiliary hook 42 in a state withdrawn from the first boom stand 21. ) To contain excavated soil or cargo.
- the cargo is lifted by the rotation of the rope drum 23 in the state where the cargo is stored in the square gourd 43, and the variable boom stand 20 and the fork lane 10 are rotated around the turntable 12.
- the worker can lift 10 tons or more of 20 tons of cargo, and can lift up to 50 tons of cargo if necessary.
Abstract
Description
Claims (5)
- 이동 가능하도록 좌우 양측에 각각 무한궤도가 회전 가능하게 구비되고, 상기 무한궤도의 상부에 턴테이블이 구비되며, 상기 턴테이블의 상부에 설치되는 운전석 및 엔진부가 구비되는 포크레인;상기 엔진부의 전방으로 길이가 가변되게 설치되는 가변붐대;상기 가변붐대에 가해지는 하중에 견디는 강성을 갖도록 상기 가변붐대의 저면에 설치되는 지지용 유압실린더;상기 가변붐대의 선단에 승강 가능하게 설치되는 하중장착부;상기 포크레인이 견고하게 지지되도록 상기 포크레인의 전방 및 후방에 설치되는 아웃트리거;를 포함하는 것을 특징으로 하는 신축 가능한 붐대가 구비된 포크레인.
- 제1항에 있어서,상기 가변붐대는 수직 방향으로 회전 가능하도록 상기 엔진부의 전면에 설치되는 제1 붐대;상기 제1 붐대의 내측에 이동 가능하게 설치되는 제2 붐대;상기 제1 붐대의 후면에 설치되는 로프드럼;상기 로프드럼에서부터 상기 제2 붐대의 선단을 거쳐 상기 하중장착부를 승강시키도록 설치되는 로프;를 포함하는 것을 특징으로 하는 신축 가능한 붐대가 구비된 포크레인.
- 제1항에 있어서,상기 지지용 유압실린더는 상기 가변붐대의 일측에 설치되는 제1 유압실린더;상기 가변붐대의 타측에 설치되는 제2 유압실린더;상기 제1 유압실린더 및 상기 제2 유압실린더의 일단은 상기 엔진부의 전면에 회전 가능하게 설치되고,상기 제1 유압실린더 및 상기 제2 유압실린더의 타단은 상기 제1 붐대를 견고하게 지지하도록 상기 제1 붐대의 저면에 배치되는 고정브래킷;을 포함하는 것을 특징으로 하는 신축 가능한 붐대가 구비된 포크레인.
- 제1항에 있어서,상기 하중장착부는 상기 가변붐대의 선단에 승강 가능하게 설치되는 메인후크;상기 가변붐대의 선단에 승강 가능하게 설치되는 보조후크;를 포함하며,상기 하장장착부에는 굴착된 지반의 흙을 소정의 용량만큼 담을 수 있도록 상기 메인후크 또는 보조후크에 설치되는 사각바가지;상기 사각바가지의 저면에 회전 가능하게 설치되는 개폐판;을 포함하는 것을 특징으로 하는 신축 가능한 붐대가 구비된 포크레인.
- 제1항에 있어서,상기 아웃트리거는 상기 포크레인의 전방에 설치되는 전방 아웃트리거;상기 포크레인의 후방에 설치되는 후방 아웃트리거;로 이루어지고,상기 전방 아웃트리거 및 후방 아웃트리거는 상기 무한궤도를 관통하여 설치되는 프레임;상기 프레임의 양단에 각각 수직으로 설치되는 유압실린더;를 포함하는 것을 특징으로 하는 신축 가능한 붐대가 구비된 포크레인.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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KR10-2018-0118039 | 2018-10-04 | ||
KR1020180118039A KR102030445B1 (ko) | 2018-10-04 | 2018-10-04 | 신축 가능한 붐대가 구비된 포크레인 |
Publications (1)
Publication Number | Publication Date |
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WO2020071844A1 true WO2020071844A1 (ko) | 2020-04-09 |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002173947A (ja) * | 2000-12-08 | 2002-06-21 | Hitachi Constr Mach Co Ltd | 掘削機 |
KR20090069823A (ko) * | 2007-12-26 | 2009-07-01 | 김종건 | 로울러형 하중검출장치를 이용한 크레인의 안전제어시스템 |
JP2013194375A (ja) * | 2012-03-16 | 2013-09-30 | Taisei Corp | 掘削装置 |
JP2015074505A (ja) * | 2013-10-04 | 2015-04-20 | 株式会社光秀 | アウトリガー装備車両 |
KR20180029506A (ko) * | 2016-09-12 | 2018-03-21 | 조대연 | 크레인 버켓 인양기 |
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KR100790919B1 (ko) | 2006-06-29 | 2008-01-03 | 이재호 | 무한궤도 주행식 크레인 |
KR20130092917A (ko) | 2012-02-13 | 2013-08-21 | 정재훈 | 포크레인 장착 굴착저면 중량물 적치 크레인 장치 |
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Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002173947A (ja) * | 2000-12-08 | 2002-06-21 | Hitachi Constr Mach Co Ltd | 掘削機 |
KR20090069823A (ko) * | 2007-12-26 | 2009-07-01 | 김종건 | 로울러형 하중검출장치를 이용한 크레인의 안전제어시스템 |
JP2013194375A (ja) * | 2012-03-16 | 2013-09-30 | Taisei Corp | 掘削装置 |
JP2015074505A (ja) * | 2013-10-04 | 2015-04-20 | 株式会社光秀 | アウトリガー装備車両 |
KR20180029506A (ko) * | 2016-09-12 | 2018-03-21 | 조대연 | 크레인 버켓 인양기 |
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