KR200452394Y1 - the construction of lower-post for jib crane - Google Patents

the construction of lower-post for jib crane Download PDF

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KR200452394Y1
KR200452394Y1 KR2020080009464U KR20080009464U KR200452394Y1 KR 200452394 Y1 KR200452394 Y1 KR 200452394Y1 KR 2020080009464 U KR2020080009464 U KR 2020080009464U KR 20080009464 U KR20080009464 U KR 20080009464U KR 200452394 Y1 KR200452394 Y1 KR 200452394Y1
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support plate
post
coupling
jib crane
diameter
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KR2020080009464U
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Korean (ko)
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KR20100000823U (en
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이봉석
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이봉석
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/16—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs supported by columns, e.g. towers having their lower end mounted for slewing movements
    • B66C23/163—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs supported by columns, e.g. towers having their lower end mounted for slewing movements where only part of the column rotates, i.e. at least the bottom part is fixed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
    • B66C23/20—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes with supporting couples provided by walls of buildings or like structures
    • B66C23/203—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes with supporting couples provided by walls of buildings or like structures with supporting couples provided by posts, e.g. scaffolding, trees or masts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Jib Cranes (AREA)

Abstract

본 고안은 지브 크레인의 하부포스트 구조에 관한 것으로서, 지브 크레인의 높이를 결정하는 하부포스트의 높이를 보다 용이하게 조절할 수 있도록 하면서 동일한 높이에 대하여 같은 하중을 견디면서 경량화할 수 있도록 하기 위하여 개발된 것으로;The present invention relates to the lower post structure of the jib crane, and was developed to be able to withstand the same load for the same height and to reduce the weight of the lower post to determine the height of the jib crane more easily. ;

하부는 지지기반에 고정되고 상부는 지브 크레인 본체가 회전가능하게 연결되도록 하는 지브 크레인 하부포스트에 있어서;A lower jib crane lower post fixed to the support base and the upper jib crane body rotatably connected thereto;

양측 끝단은 단턱지게 그 외경이 확장되는 결합리브가 형성되고, 상기 결합리브에는 관통된 다수의 결합홀이 형성되며, 상기 결합리브의 결합홀에 장착되는 볼트와 너트에 의하여 길이가 연장되어 적어도 4개 이상이 방사형으로 배열되는 포스트와;Both ends are formed with a coupling rib that extends its outer diameter stepwise, the coupling ribs are formed through a plurality of coupling holes, the length is extended by bolts and nuts mounted in the coupling hole of the coupling ribs at least four The posts are radially arranged;

상기 포스트의 하단은 결합리브 외경보다 적어도 4배 이상 큰 직경을 가진 원판형으로 형성되어 방사형으로 배열된 상기 포스트의 결합홀에 상응하는 관통홀이 형성되어 볼트와 너트로 결합되도록 하는 상부지지판과;An upper support plate having a lower end of the post formed in a disc shape having a diameter of at least four times larger than an outer diameter of the coupling rib and having a through hole corresponding to the coupling hole of the post arranged in a radial direction, and engaging with a bolt and a nut;

상기 상부지지판의 직경보다 적어도 같거나 큰 직경을 가진 원판형으로 형성되어 상기 지지기반에 고정되는 하부지지판과;A lower support plate formed in a disc shape having a diameter at least equal to or larger than the diameter of the upper support plate and fixed to the support base;

상기 상부지지판에 형성된 다수의 관통홀이 외측에 위치하도록 하는 외경을 가지고 소정 높이를 가진 원통형의 연결관체와;A cylindrical connecting tube having a predetermined height and having an outer diameter such that a plurality of through holes formed in the upper support plate are located outside;

상기 연결관체의 외면과 상기 상부지지판의 저면 및 하부지지판의 상면에 상응하여 용접되는 사다리꼴 판재로 이루어진 다수의 보강판으로 이루어짐을 특징으로 하는 지브 크레인 하부포스트 구조에 관한 것이다.It relates to a jib crane lower post structure, characterized in that made of a plurality of reinforcement plate made of a trapezoidal plate welded to correspond to the outer surface of the connecting pipe and the upper surface of the lower surface and the lower support plate of the upper support plate.

지브 크레인 Jib crane

Description

지브 크레인 하부포스트 구조{the construction of lower-post for jib crane}The construction of lower-post for jib crane

본 고안은 지브 크레인 하부포스트 구조에 관한 것으로서, 좀더 상세하게 설명하면 지브 크레인 본체를 지지하는 하부포스트를 개선하여 용이하게 높이를 높이거나 낮출 수 있도록 할 뿐만 아니라 적정 하중을 지지하는 하부포스트가 보다 경량을 가지도록 하기 위하여 개발된 지브 크레인 하부포스트 구조에 관한 것이다.The present invention relates to a jib crane lower post structure, and in more detail, to improve the lower post supporting the jib crane body to easily increase or decrease the height, the lower post supporting the appropriate load is lighter It relates to a jib crane lower post structure developed to have a.

지브 크레인은 크레인의 한 종류로 수직축을 중심으로 원을 그리며 도는 것이 많아 선회(旋回) 크레인이라고도 하는 것으로 무겁고 큰 부피를 가진 물건을 운반하기에 적합하여 건설현장이나 부두 하역장 등에 많이 사용되는 것이다.Jib crane is a kind of crane, and it is also called a swing crane because it is often circled around a vertical axis.

그 구조는 수직기둥 또는 하부포스트의 끝에 수평의 중간 붐(boom)인 지브(jib)를 장착하고 이러한 지브에 형성되어 있는 레일을 따라 훅(hook)이 이동하는 구조를 가지고 있다.The structure has a structure in which a jib, which is a horizontal intermediate boom, is mounted at the end of a vertical post or a lower post, and a hook moves along a rail formed in the jib.

이러한 지브 크레인은 수평 방향으로 더 넓은 범위에서 작업이 가능하여 아 파트 등의 건설공사에 많이 쓰이며 고층건물의 옥상에 설치하여 건축재료를 운반하고 공사가 끝나면 철거하기도 한다.These jib cranes can be used in a wider range in the horizontal direction, so they are widely used in construction works such as Apart. They are installed on the roof of high-rise buildings to transport building materials, and sometimes to be demolished after construction.

도 3은 이러한 종래 지브 크레인을 나타낸 측면도로서, 크게 지면 또는 건물 옥상등에 형성되는 지지기반(1)의 위에 하부포스트(2)가 형성되고, 그 위에는 훅(31)을 구비한 지브(3)가 수평으로 형성되게 된다.Figure 3 is a side view of such a conventional jib crane, a lower post (2) is formed on the support base (1) formed on the ground or the roof of a building large, the jib (3) having a hook 31 is formed thereon It will be formed horizontally.

상황에 따라 하부포스트(2)가 없이 수직 벽면에 부착되는 지브 크레인도 있지만 이에 대한 자세한 언급은 생략하기로 한다.Some jib cranes are attached to the vertical wall without the lower post 2, but detailed description thereof will be omitted.

상기와 같은 구조를 가지는 지브 크레인은 지지를 위한 기본 하부포스트(2)는 원통형의 철제로 단일 이루어져 있다는 것이다.Jib crane having the above structure is that the basic lower post (2) for the support is made of a single cylindrical steel.

따라서 중량이 상당히 무겁게 되어 지지기반(1)의 위 정확한 위치에 설치하는 공정도 매우 어려워 별도의 차량에 탑재된 크레인에 의하여 이를 이송 조립하는 경우가 대부분이다.Therefore, the weight is quite heavy, so the process of installing in the correct position on the support base (1) is also very difficult, most of the transfer assembly by a crane mounted on a separate vehicle.

물론 이후 지브(3)를 포함하는 일련의 본체를 조립하기 위하여 별도의 장치를 필요로 하고 있지만 하부포스트(2)의 무게가 작업에 곤란할 정도로 많은 부분을 차지한다는 문제점이 있는 것이다.Of course, since a separate device is required in order to assemble a series of main bodies including the jib 3, there is a problem that the weight of the lower post 2 takes up a large part so as to be difficult for work.

본 고안은 상기와 같은 문제점을 해결하기 위하여 개발된 것으로서, 그 목적은 하부포스트의 무게를 줄이면서도 구조적으로 견고한 하부포스트 구조를 개발하는 것이다.The present invention was developed to solve the above problems, the purpose is to develop a structurally robust lower post structure while reducing the weight of the lower post.

또한 지브 크레인의 높이를 높이는 공정이 보다 용이한 하부포스트 구조를 개발하는 것이다.It is also to develop a lower post structure that makes the process of raising the height of the jib crane easier.

상기와 같은 목적을 달성하기 위하여 본 고안은 하부는 지지기반에 고정되고 상부는 지브 크레인 본체가 회전가능하게 연결되도록 하는 지브 크레인 하부포스트에 있어서;In order to achieve the above object, the present invention is a jib crane lower post fixed to the support base and the top is rotatably connected jib crane body;

양측 끝단은 단턱지게 그 외경이 확장되는 결합리브가 형성되고, 상기 결합리브에는 관통된 다수의 결합홀이 형성되며, 상기 결합리브의 결합홀에 장착되는 볼트와 너트에 의하여 길이가 연장되어 적어도 4개 이상이 방사형으로 배열되는 포스트와;Both ends are formed with a coupling rib that extends its outer diameter stepwise, the coupling ribs are formed through a plurality of coupling holes, the length is extended by bolts and nuts mounted in the coupling hole of the coupling ribs at least four The posts are radially arranged;

상기 포스트의 하단은 결합리브 외경보다 적어도 4배 이상 큰 직경을 가진 원판형으로 형성되어 방사형으로 배열된 상기 포스트의 결합홀에 상응하는 관통홀이 형성되어 볼트와 너트로 결합되도록 하는 상부지지판과;An upper support plate having a lower end of the post formed in a disc shape having a diameter of at least four times larger than an outer diameter of the coupling rib and having a through hole corresponding to the coupling hole of the post arranged in a radial direction, and engaging with a bolt and a nut;

상기 상부지지판의 직경보다 적어도 같거나 큰 직경을 가진 원판형으로 형성 되어 상기 지지기반에 고정되는 하부지지판과;A lower support plate formed in a disc shape having a diameter at least equal to or larger than the diameter of the upper support plate and fixed to the support base;

상기 상부지지판에 형성된 다수의 관통홀이 외측에 위치하도록 하는 외경을 가지고 소정 높이를 가진 원통형의 연결관체와;A cylindrical connecting tube having a predetermined height and having an outer diameter such that a plurality of through holes formed in the upper support plate are located outside;

상기 연결관체의 외면과 상기 상부지지판의 저면 및 하부지지판의 상면에 상응하여 용접되는 사다리꼴 판재로 이루어진 다수의 보강판으로 이루어짐을 특징으로 한다.Characterized in that it consists of a plurality of reinforcing plate made of a trapezoidal plate welded to correspond to the outer surface of the connecting pipe body and the upper surface of the lower surface and the lower support plate of the upper support plate.

상술한 바와 같이 본 고안은 하나의 원통형으로 이루어진 하부포스트를 여러 개의 작은 원통형을 가진 포스트로 분산하여 기존과 동일한 하중에 대한 내구성을 가지면서도 중량이 가벼워 설치가 용이한 효과가 있다.As described above, the present invention distributes a single post having a single cylindrical shape into posts having a plurality of small cylindrical shapes, and has a durability with respect to the same load as the existing one, but has a light weight, thereby making it easy to install.

삭제delete

이에 본 고안의 구성을 첨부된 도면에 의하여 당업자가 용이하게 이해하고 재현할 수 있도록 상세하게 설명하면 다음과 같다.Hereinafter, the structure of the present invention will be described in detail so that a person skilled in the art can easily understand and reproduce the same.

도 1은 본 고안의 일 실시 예에 따른 측면도로서, 하부는 지지기반(1)에 고정되고 상부는 지브 크레인 본체(4)가 회전가능하게 연결되도록 하는 지브 크레인 하부포스트(2)에 있어서;1 is a side view according to an embodiment of the present invention, in which the lower part is fixed to the support base 1 and the upper part is in a jib crane lower post 2 for rotatably connecting the jib crane body 4;

양측 끝단은 단턱지게 그 외경이 확장되는 결합리브(211)가 형성되고, 상기 결합리브(211)에는 관통된 다수의 결합홀(212)이 형성되며, 상기 결합리브(211)의 결합홀(212)에 장착되는 볼트와 너트에 의하여 길이가 연장되어 적어도 4개 이상이 방사형으로 배열되는 포스트(22)와;Both ends of the coupling ribs 211 are formed to extend the outer diameter stepped, the coupling ribs 211 is formed through a plurality of coupling holes 212, coupling holes 212 of the coupling ribs 211 Posts (22) extending in length by bolts and nuts mounted on the at least one and arranged radially;

상기 포스트(22)의 하단은 결합리브(211) 외경보다 적어도 4배 이상 큰 직경을 가진 원판형으로 형성되어 방사형으로 배열된 상기 포스트(22)의 결합홀(212)에 상응하는 관통홀이 형성되어 볼트와 너트로 결합되도록 하는 상부지지판(23)과;The lower end of the post 22 is formed in a disc shape having a diameter of at least four times larger than the outer diameter of the coupling rib 211 to form a through hole corresponding to the coupling hole 212 of the post 22 arranged radially. An upper support plate 23 to be coupled to the bolt and the nut;

상기 상부지지판(23)의 직경보다 적어도 같거나 큰 직경을 가진 원판형으로 형성되어 상기 지지기반(1)에 고정되는 하부지지판(24)과;A lower support plate 24 formed in a disc shape having a diameter at least equal to or larger than the diameter of the upper support plate 23 and fixed to the support base 1;

상기 상부지지판(23)에 형성된 다수의 관통홀이 외측에 위치하도록 하는 외경을 가지고 소정 높이를 가진 원통형의 연결관체(25)와;A cylindrical connecting tube 25 having an outer diameter such that a plurality of through holes formed in the upper support plate 23 are located outside, and having a predetermined height;

상기 연결관체(25)의 외면과 상기 상부지지판(23)의 저면 및 하부지지판(24)의 상면에 상응하여 용접되는 사다리꼴 판재로 이루어진 다수의 보강판(26)으로 이루어짐을 특징으로 하는 지브 크레인 하부포스트 구조를 나타내었다.The bottom of the jib crane, characterized in that made of a plurality of reinforcing plate 26 made of a trapezoidal plate welded to correspond to the outer surface of the connecting pipe 25, the bottom surface of the upper support plate 23 and the upper surface of the lower support plate 24. The post structure is shown.

이때 종래에 하나의 파이프에 의하여 수직하중을 지지할 경우 수직하중은 기둥의 외경이 R1 내경을 R2라 하면 비례상수는 기둥의 단면적을 A라고 하고, 단면이차모멘트를 I라고 하면 기둥의 세장비는 1/(R1^2-R2^2)√(R1^2+R2^2) 에 비례한다.At this time, if the vertical load is supported by one pipe in the related art, the vertical load is assuming that the outer diameter of the column is R1 and the inner diameter is R2, and the proportional constant is A for the cross-sectional area of the column and I for the cross section moment is I. Proportional to / (R1 ^ 2-R2 ^ 2) √ (R1 ^ 2 + R2 ^ 2)

이러한 세장비(보통 k라 표기한다)가 기둥의 파단하중(P)에 미치는 영향은 P=f.A / (1+ a/n)(l/k)^2의 공식이 적용된다.The effect of these three pieces (usually denoted by k) on the breaking load (P) of the column is given by the formula P = f.A / (1+ a / n) (l / k) ^ 2.

여기서 P=기둥의 파단하중(Kg), f=재료의 강도에 관한 실제값(Kg/㎟), A=기둥의 단면적(㎠), I=기둥의 최소단면2차모멘트(Cm^4), k=최소회전반경(Cm), l=기둥의길이(Cm), a,m=재료의 실험적인 상수값이다.Where P = breaking load (Kg) of the column, f = actual value (Kg / mm2) regarding the strength of the material, A = cross-sectional area of the column (cm 2), I = minimum cross-sectional secondary moment of the column (Cm ^ 4), k = minimum rotation radius (Cm), l = column length (Cm), a, m = experimental constant value of the material.

구체적인 이러한 공식 값에의 구체적인 비교는 언급하지 않지만 이러한 공식에 의한 일반적인 사실은 하나의 독립 기둥보다 작은 여러 개의 기둥을 형성하여 동일한 파단 하중값을 가질 경우 더 적은 단면적으로 즉 무게로 제작할 수 있다는 것이다.Although no specific comparison to these formula values is mentioned, the general fact of these formulas is that if they form several columns smaller than one independent column and have the same breaking load value, they can be manufactured with less cross-sectional area or weight.

물론 여러 개를 제작하는 것은 제조상에는 다소 어려움이 있지만 규격화 대량 생산일 경우에는 이러한 문제점 또한 해소된다.Of course, manufacturing several is difficult in manufacturing, but in the case of standardized mass production, this problem is also solved.

이러한 이유로 본 고안은 4 개 이상의 포스트(22)를 이용하여 하부포스트를 형성함으로서 보다 중량이 가벼우며 특히 이를 운반 설치할 때 각 설치할 부품의 무개는 일차적으로는 1/4이 감소하여 설치가 용이해지는 것이다.For this reason, the present invention is lighter by forming a lower post by using four or more posts 22, and in particular, when installing and transporting them, the weight of each component to be installed is primarily reduced by 1/4 to facilitate installation. .

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또한 본 고안은 상기와 같은 일련의 포스트(22)를 장착 연결하기 위하여 상기 상부지지판(23), 하부지지판(24), 연결관체(25), 보강판(26)은 결합이 용이하도록 기존과 그 형상을 달리하는 실시 예를 추가로 제시하였다.In addition, the present invention is the upper support plate 23, the lower support plate 24, the connector 25, the reinforcing plate 26 and the existing to facilitate the mounting of the series of the post 22 as described above Further examples of varying shapes are presented.

도 2는 본 고안의 일 실시 예에 따른 지브를 나타낸 개념도로서, 상기 지브 크레인은 지브(3)를 따라 운동하는 훅(31)에 의하여 물체를 들어올리게 되는데 상기 훅(31)은 지렛대의 원리에 의하여 하중이 클 경우에는 지나치게 외측으로 가는 것을 방지하여 지브 크레인이 쓰러지는 등의 사고 우려를 줄여야한다.Figure 2 is a conceptual diagram showing a jib according to an embodiment of the present invention, the jib crane is to lift the object by the hook 31 to move along the jib 3, the hook 31 is based on the principle of the lever If the load is large, it should be prevented from going outwards to reduce the risk of accidents such as the jib crane falling down.

일 예로 상기 L5 구간이 1톤의 하중이 적정 구간이라면 각각 L4는 2톤, L3는 3톤의 형식으로 내측으로 갈수록 지지할 수 있는 하중이 증가하게 된다.As an example, when the load of 1 ton in the L5 section is an appropriate section, the load that can be supported inward in the form of L4 is 2 tons and L3 is 3 tons, respectively.

따라서 이러한 구간마다 그 하중의 한계선을 설정하여 스토퍼(32)를 형성하는 것이 바람직할 것이다.Therefore, it will be desirable to form the stopper 32 by setting the limit line of the load for each of these sections.

도 1은 본 발명의 일 실시 예에 따른 측면도1 is a side view according to an embodiment of the present invention

도 2는 본 발명의 일 실시 예에 따른 개념도2 is a conceptual diagram according to an embodiment of the present invention;

도 3은 종래 지브 크레인을 나타낸 측면도Figure 3 is a side view showing a conventional jib crane

<도면 중 주요 부분에 대한 부호의 설명><Explanation of symbols for main parts of the drawings>

1 : 지지기반1: Support base

2 : 하부포스트2: lower post

211 : 결합리브     211: combined rib

212 : 결합홀 22 : 포스트     212: coupling hole 22: post

23 : 상부지지판 24 : 하부지지판     23: upper support plate 24: lower support plate

25 : 연결관체 26 : 보강판     25: connecting body 26: reinforcement plate

3 : 리브3: rib

31 : 훅 32 : 스토퍼     31: hook 32: stopper

4 : 본체4: body

Claims (1)

하부는 지지기반(1)에 고정되고 상부는 지브 크레인 본체(4)가 회전가능하게 연결되도록 하는 지브 크레인 하부포스트(2)에 있어서;A lower part of the jib crane lower post 2 which is fixed to the support base 1 and whose upper part is rotatably connected to the jib crane body 4; 양측 끝단은 단턱지게 그 외경이 확장되는 결합리브(211)가 형성되고, 상기 결합리브(211)에는 관통된 다수의 결합홀(212)이 형성되며, 상기 결합리브(211)의 결합홀(212)에 장착되는 볼트와 너트에 의하여 길이가 연장되어 적어도 4개 이상이 방사형으로 배열되는 포스트(22)와;Both ends of the coupling ribs 211 are formed to extend the outer diameter stepped, the coupling ribs 211 is formed through a plurality of coupling holes 212, coupling holes 212 of the coupling ribs 211 Posts (22) extending in length by bolts and nuts mounted on the at least one and arranged radially; 상기 포스트(22)의 하단은 결합리브(211) 외경보다 적어도 4배 이상 큰 직경을 가진 원판형으로 형성되어 방사형으로 배열된 상기 포스트(22)의 결합홀(212)에 상응하는 관통홀이 형성되어 볼트와 너트로 결합되도록 하는 상부지지판(23)과;The lower end of the post 22 is formed in a disc shape having a diameter of at least four times larger than the outer diameter of the coupling rib 211 to form a through hole corresponding to the coupling hole 212 of the post 22 arranged radially. An upper support plate 23 to be coupled to the bolt and the nut; 상기 상부지지판(23)의 직경보다 적어도 같거나 큰 직경을 가진 원판형으로 형성되어 상기 지지기반(1)에 고정되는 하부지지판(24)과;A lower support plate 24 formed in a disc shape having a diameter at least equal to or larger than the diameter of the upper support plate 23 and fixed to the support base 1; 상기 상부지지판(23)에 형성된 다수의 관통홀이 외측에 위치하도록 하는 외경을 가지고 소정 높이를 가진 원통형의 연결관체(25)와;A cylindrical connecting tube 25 having an outer diameter such that a plurality of through holes formed in the upper support plate 23 are located outside, and having a predetermined height; 상기 연결관체(25)의 외면과 상기 상부지지판(23)의 저면 및 하부지지판(24)의 상면에 상응하여 용접되는 사다리꼴 판재로 이루어진 다수의 보강판(26)으로 이루어짐을 특징으로 하는 지브 크레인 하부포스트 구조.The bottom of the jib crane, characterized in that made of a plurality of reinforcing plate 26 made of a trapezoidal plate welded to correspond to the outer surface of the connecting pipe 25, the bottom surface of the upper support plate 23 and the upper surface of the lower support plate 24. Post structure.
KR2020080009464U 2008-07-16 2008-07-16 the construction of lower-post for jib crane KR200452394Y1 (en)

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
KR101602329B1 (en) 2015-03-10 2016-03-10 주식회사 대원산기 Support apparatus for jib crane and jib crane

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CN102602821A (en) * 2012-03-28 2012-07-25 山东润科机电设备有限公司 Safe and heavy tower crane

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KR200174336Y1 (en) 1998-01-10 2000-04-01 최연태 Crane
KR200204417Y1 (en) 2000-06-05 2000-11-15 이춘식 Device for salvaging ship
KR20010074336A (en) * 2000-01-25 2001-08-04 박호군 Direct Internal Reforming Molten Carbonate Fuel Cell with Membrane for Intercepting Carbonate Vapor
KR20020004417A (en) * 2000-07-05 2002-01-16 조충희 Video mail service method and system
KR20040000004A (en) * 2002-06-19 2004-01-03 엘지전자 주식회사 Apparatus of inspection for back light unit
KR200400004Y1 (en) 2005-08-02 2005-11-02 주명자 Crane for small ship emergency transport

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KR200174336Y1 (en) 1998-01-10 2000-04-01 최연태 Crane
KR20010074336A (en) * 2000-01-25 2001-08-04 박호군 Direct Internal Reforming Molten Carbonate Fuel Cell with Membrane for Intercepting Carbonate Vapor
KR200204417Y1 (en) 2000-06-05 2000-11-15 이춘식 Device for salvaging ship
KR20020004417A (en) * 2000-07-05 2002-01-16 조충희 Video mail service method and system
KR20040000004A (en) * 2002-06-19 2004-01-03 엘지전자 주식회사 Apparatus of inspection for back light unit
KR200400004Y1 (en) 2005-08-02 2005-11-02 주명자 Crane for small ship emergency transport

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101602329B1 (en) 2015-03-10 2016-03-10 주식회사 대원산기 Support apparatus for jib crane and jib crane

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