KR20100000615A - Beam clamp - Google Patents

Beam clamp Download PDF

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Publication number
KR20100000615A
KR20100000615A KR1020080060179A KR20080060179A KR20100000615A KR 20100000615 A KR20100000615 A KR 20100000615A KR 1020080060179 A KR1020080060179 A KR 1020080060179A KR 20080060179 A KR20080060179 A KR 20080060179A KR 20100000615 A KR20100000615 A KR 20100000615A
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South Korea
Prior art keywords
beam clamp
present
clamp
tooth
teeth
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KR1020080060179A
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Korean (ko)
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KR100948662B1 (en
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이점용
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이점용
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/04—Clamping or clipping connections
    • F16B7/0433—Clamping or clipping connections for rods or tubes being in parallel relationship
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2/00—Friction-grip releasable fastenings
    • F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
    • F16B2/06—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action
    • F16B2/065—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action using screw-thread elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/18—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using screw-thread elements

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)

Abstract

PURPOSE: A beam clamp is provided to reduce the cost of materials in processing by mounting an upper gear on top of the beam clamp. CONSTITUTION: The beam clamp comprises a computer voltage(15) in which a bottom part(10) is fixed and coupled on one side of a screw hole(11). A plurality of bottom gears(12) is formed on both edges of the bottom part. A top part(20) corresponds to the bottom part. A through hole(21) is formed on the upper central part of the top part. A tightening screw(2) is fixed and coupled on the through hole. A plurality of upper gears(22) is formed on both edge of the top part.

Description

빔 클램프{Beam clamp}Beam clamp

본 발명은 빔 클램프에 관한 것으로, 보다 구체적으로는 클램프상에 상단톱니를 구비함에 따라, 가공시 재료비의 절감과 함께 시공시 신속하고 안정된 작업이 가능하여 작업성과 안정성이 향상되는 빔 클램프에 관한 것이다.The present invention relates to a beam clamp, and more particularly, to a beam clamp having a top tooth on the clamp, which can reduce the material cost during processing and enable fast and stable operation during construction, thereby improving workability and stability. .

통상적으로, 각종 산업 현장에서는 작업 공간 형성시 천장과 기둥의 소재로서 H형강이나 I형강과 같은 빔(beam)을 이용하며, 이러한 빔에는 중량체의 이송에 요구되는 호이스트(크레인)을 비롯한 전기 배선용 배관 및 에어 덕트등을 지지하기 위한 부재들이 장착된다.In general, various industrial sites use beams such as H-beams or I-beams as materials for ceilings and pillars when forming work spaces, and these beams are used for electrical wiring including hoists (crane) required for the transport of heavy materials. Members for supporting the pipe and the air duct and the like are mounted.

일예로, 한국 실용신안공보 제20-2000-0029125의 빔 클램프에 의하면 『산업 현장등의 천장재로 사용되는 H형강 및 I형강인 빔에 다양한 부재의 고정을 위한 빔 클램프를 구성함에 있어서: 상기 빔 클램프(2)는 엠보스부(20)가 전면에 걸쳐 형성되어 전체 형상이 '⊃'형의 절곡 부재로서, 상단 중앙부에는 조임 나사(24)가 암나사를 통하여 개재되고며, 하단 양측 가장 자리에는 톱니(27)가 다수 개 형성된 고정부(21)와, 상기 고정부(21) 일측에는, 환형테 형상으로 그 내경에는 암나사(28)를 형성하여 클램프(2)의 절곡 부위고정된 체결부(23)로 구성된 것을 특징으로 하 는 빔 클램프』가 개시된다.For example, according to the beam clamp of Korean Utility Model Publication No. 20-2000-0029125, `` In constructing a beam clamp for fixing various members to beams of H-beams and I-beams used as ceiling materials for industrial sites, etc .: Clamp (2) is a bending member of the embossed portion 20 is formed over the entire surface, the overall shape of the '⊃' type, the fastening screw 24 is interposed through the female screw in the upper center portion, the lower edge of both sides A fastening portion 21 having a plurality of teeth 27 and a fastening portion fixed to the bent portion of the clamp 2 by forming a female thread 28 at an inner diameter thereof in an annular frame shape at one side of the fixing portion 21. 23) is disclosed.

하지만 이러한 빔 클램프는 전기 배선용 배관이나 호이스트, 에어덕트 등을 지지하기 위해서는 빔상에 전산볼트를 연결하여야 되는데 시공시 설치 될 지점을 정한 후, 시공자가 빔상에 올라가 빔 클램프의 조임나사를 돌려 체결한 후 다시 지상으로 내려와 전산볼트를 체결하는 방식으로 사용해 왔다. 그런데, 이와 같은 방식을 적용할 경우에는 작업 속도가 현저히 느리고 위험성을 초래하는 등의 단점이 있었다.However, in order to support electrical wiring pipes, hoists, air ducts, and so on, the beam clamps must be connected with a computer bolt on the beam. After setting the point to be installed during construction, the contractor climbs on the beam and tightens the tightening screw of the beam clamp. It has been used again by coming down to the ground and tightening bolts. However, in the case of applying such a method, there were disadvantages such as a remarkably slow working speed and a danger.

종래기술의 문헌정보Literature Information of the Prior Art

[문헌1] 한국 실용신안공보 제2000-0029125호 “빔 클램프”[Document 1] Korean Utility Model Publication No. 2000-0029125 “Beam Clamp”

이에 따라 본 발명은 상기와 같은 종래의 문제점을 근본적으로 해결하기 위한 것으로서, 빔 클램프상에 상단톱니를 구비함에 따라, 가공시 재료비의 절감과 함께 시공시 신속하고 안정된 작업이 가능하여 작업성과 안정성이 향상되는 빔 클램프 제공하려는데 그 목적이 있다.Accordingly, the present invention is to fundamentally solve the conventional problems as described above, by providing the upper teeth on the beam clamp, it is possible to reduce the material cost during processing and to enable fast and stable operation during construction workability and stability The aim is to provide an improved beam clamp.

이러한 목적을 달성하기 위해 본 발명은 산업 현장의 천장재로 사용되는 빔상에 고정하기 위해 조임나사를 구비하는 빔 클램프에 관한 것으로 일측의 나선공상에 체결되는 전산볼트를 구비하고, 양측 가장자리에 다수의 하단톱니가 형성되는 하단부; 및 상기 하단부에 대응되게 형성되어 상기 조임나사가 상단 중앙부에 형성된 관통공상에 체결되고, 양측 가장자리에 다수의 상단톱니가 형성되어 조임나사 없이도 전산볼트만으로 하부에서 체결하여 고정 가능한 상단부;를 포함하여 이루어지는 것을 특징으로 한다.In order to achieve the above object, the present invention relates to a beam clamp having a tightening screw for fixing on a beam used as a ceiling material of an industrial site, and includes a computer bolt fastened to a spiral hole on one side, and a plurality of lower ends at both edges. A lower end where teeth are formed; And an upper end formed to correspond to the lower end and fastened to the through-holes formed at the upper center portion, and having a plurality of upper teeth formed at both edges thereof to be fastened by fixing only the lower part of the computer bolt without the tightening screw. It is characterized by.

이때, 본 발명의 상기 하단톱니와 상단톱니는 톱니의 각이 일방향으로 기울어지게 형성된 것을 특징으로 한다.At this time, the lower tooth and the upper tooth of the present invention is characterized in that the angle of the tooth formed inclined in one direction.

한편, 이에 앞서 본 명세서 및 특허청구범위에 사용된 용어나 단어는 통상적이거나 사전적인 의미로 한정해서 해석되어서는 아니 되며, 발명자는 그 자신의 발명을 가장 최선의 방법으로 설명하기 위해 용어의 개념을 적절하게 정의할 수 있다는 원칙에 입각하여 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어 야만 한다. 따라서 본 명세서에 기재된 실시예와 도면에 도시된 구성은 본 발명의 가장 바람직한 일 실시예에 불과할 뿐이고, 본 발명의 기술적 사상을 모두 대변하는 것은 아니므로, 본 출원시점에 있어서 이들을 대체할 수 있는 다양한 균등물과 변형예들이 있을 수 있음을 이해하여야 한다.On the other hand, the terms or words used in the present specification and claims are not to be construed as limiting the ordinary or dictionary meanings, the inventors should use the concept of the term in order to explain the invention in the best way. Based on the principle that it can be properly defined, it should be interpreted as meanings and concepts corresponding to the technical spirit of the present invention. Therefore, the embodiments described in the present specification and the configuration shown in the drawings are only the most preferred embodiments of the present invention, and do not represent all of the technical ideas of the present invention, and various alternatives may be substituted at the time of the present application. It should be understood that there may be equivalents and variations.

이상의 구성 및 작용에서 설명한 바와 같이, 본 발명은, 빔 클램프상에 상단톱니를 구비함에 따라 가공시 재료비의 절감과 함께 시공시 신속하고 안정된 작업이 가능하여 작업성과 안정성이 향상되는 효과를 제공한다.As described in the above configuration and operation, the present invention, by providing the upper teeth on the beam clamp, it is possible to reduce the material cost during processing and to enable a quick and stable operation during construction to provide the effect of improved workability and stability.

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

도 1은 본 발명에 따른 빔 클램프를 나타내는 사시도이고, 도 2는 본 발명에 따른 본 발명에 따른 빔 클램프가 빔에 조립되는 과정을 나타내는 사시도이며, 도 3은 본 발명에 따른 빔 클램프의 사용 상태도이다.1 is a perspective view showing a beam clamp according to the present invention, Figure 2 is a perspective view showing a process of assembling the beam clamp according to the present invention according to the present invention, Figure 3 is a use state of the beam clamp according to the present invention to be.

본 발명은 산업 현장의 천장재로 사용되는 빔(1)상에 고정하기 위해 조임나사(2)를 구비하는 빔 클램프에 관련되고, 하단부(10)와 상단부(20)를 주요구성으로 한다.The present invention relates to a beam clamp having a tightening screw (2) for fixing on a beam (1) used as a ceiling material in an industrial site, and has a lower part (10) and an upper part (20) as main components.

본 발명에 따른 하단부(10)는 상기 일측의 나선공(11)상에 체결되는 전산볼트(15)를 구비하고, 양측 가장자리에 다수의 하단톱니(12)가 형성된다. 도 1에 도시된 바와 같이 전산볼트(15)는 상기 하단부(10)의 중앙에 형성된 나선공(11)상에 체결된다. 이는 전산볼트(25)를 상기 나선공(11)상에 체결하여 빔(1)에 고정되는 역할을 수행한다. 그리고 상기 하단부(10)의 가장자리 부분에 한쌍의 하단톱니(12)가 형성되는데, 이는 후술하는 상단부(20)의 조임나사(2)와 역할이 연계가 되어, 빔(1)상에 고정력을 부과하는 동시에 빔 클램프의 이탈방지를 수행하는 바, 이는 후술하는 상단톱니(22)와 역할이 같다고 할 수 있다.The lower end 10 according to the present invention has a threaded bolt 15 fastened on the spiral hole 11 on one side, and a plurality of lower teeth 12 are formed at both edges thereof. As shown in FIG. 1, the computational bolt 15 is fastened on the spiral hole 11 formed at the center of the lower end 10. This serves to fasten the threaded bolt 25 on the spiral hole 11 is fixed to the beam (1). And a pair of lower teeth 12 is formed on the edge portion of the lower end 10, which is connected to the tightening screw 2 of the upper end 20 to be described later, impose a fixing force on the beam (1) At the same time to perform the separation of the beam clamp bar, which can be said to have the same role as the upper teeth 22 to be described later.

또, 본 발명에 따른 상단부(20)는 상기 하단부(10)에 대응되게 형성되어 상기 조임나사(2)가 상단 중앙부에 형성된 관통공(21)상에 체결되고, 양측 가장자리에 다수의 상단톱니(22)가 형성되어 조임나사(2) 없이도 전산볼트(15)만으로 하부에서 체결하여 고정 가능하다. In addition, the upper end portion 20 according to the present invention is formed to correspond to the lower end portion 10, the tightening screw 2 is fastened to the through-hole 21 formed in the upper center portion, a plurality of upper teeth (to both edges ( 22) is formed and can be fixed by fastening at the bottom with only the computer bolt 15 without the tightening screw (2).

이때, 조임나사(2)를 고정하기 위해 암나사(미도시)를 사용하여 고정할 수 있지만 빔(1)상에 고정력을 강화하기 위해 넓은 원판형태의 고정부(도면부호 미부여)를 사용하여 고정하는 것이 적합하다. 상기 상단부(20)는 도 1에 도시된 바와 같이 상술한 하단부(10)와 대응되게 상단톱니(22)를 구비하는 바, 이는 하단부(10)의 나선공(11)상에 전산볼트(15)를 체결하여 빔(1)상에 고정력을 부과하는 동시에 빔 클램프의 이탈을 방지하는 역할을 수행한다. 이때, 전산볼트(15)는 도 3에 도시된 바와 같이 챤넬(3)과 연결되어 전선관(5)을 챤넬클램프(4)로 인해 고정하기 위해 사용된다.At this time, it can be fixed using a female screw (not shown) to fix the tightening screw (2), but fixed using a wide disk-shaped fixing portion (not shown) to strengthen the fixing force on the beam (1) It is appropriate. As shown in FIG. 1, the upper end 20 has an upper tooth 22 corresponding to the lower end 10 described above, which is a threaded bolt 15 on the spiral hole 11 of the lower end 10. Fastening imposes a clamping force on the beam (1) at the same time serves to prevent the separation of the beam clamp. At this time, the computer bolt 15 is connected to the channel (3) as shown in Figure 3 is used to fix the conduit (5) due to the chanel clamp (4).

도 4는 본 발명의 변형예에 따른 빔 클램프를 나타내는 정면도이다.4 is a front view showing a beam clamp according to a modification of the present invention.

도 4에 도시된 바와 같이 상기 하단톱니(12)와 상단톱니(22)는 톱니의 각이 일방향으로 기울어지게 형성된 것을 특징으로 한다. 즉, 상기 하단톱니(12)와 상단 톱니(22)의 톱니 각도가 일방향으로 기울어지게 형성되는 바, 이는 하단톱니(12)와 상단톱니(22)의 톱니가 내부방향으로 기울어지게 형성되는 것이 적합하다. 그 이유는 상ㆍ하단톱니(12,22)와 결합되는 빔(1)의 이탈되는 작용력을 억제시키고 고정력을 더욱 부가 시킬 수 있다.As shown in Figure 4, the lower teeth 12 and the upper teeth 22 is characterized in that the angle of the tooth is formed to be inclined in one direction. That is, the tooth angle of the lower tooth 12 and the upper tooth 22 is formed to be inclined in one direction, which is suitable that the tooth of the lower tooth 12 and the upper tooth 22 is inclined inward. Do. The reason is that it is possible to suppress the acting force of the beam 1 coupled to the upper and lower teeth 12, 22 and to add a fixing force.

도 1 내지 도 4를 통하여 빔 클램프를 빔(1)상에 시공에 있어서, 시공시 시공자는 전기 배선용 배관이나 호이스트, 에어덕트 등을 지지하기 위해 설치될 지점을 고려하여 미리 선정한 다음, 50cm에서 3m내외의 길이를 지닌 전산볼트(15)를 빔 클램프의 하단부(10) 일측의 나선공(11)상에 빠지지 않을 정도로 먼저 체결을 한다. In the construction of the beam clamp on the beam 1 through FIGS. 1 to 4, the contractor pre-selects in consideration of the point to be installed to support the electrical wiring pipe, hoist, air duct, etc. The threaded bolt 15 having an internal and external length is fastened so as not to fall on the spiral hole 11 on one side of the lower end portion 10 of the beam clamp.

이어서, 체결된 빔 클램프가 위로 향하게 전산볼트(15)를 세워 체결될 빔(2)상에 빔 클램프를 걸어 둔 후, 다시 전산볼트(15)를 회동시켜 조이면 빔 클램프의 상단부(20)의 양측 가장자리에 다수의 상단톱니(22)와 연계되어 빔(2)을 안전하고 신속하고 체결할 수 있게 된다.Subsequently, the beam bolts 15 are placed on the beams 2 to be fastened by raising the bolts 15 with the fastened beam clamps upwards, and then the screw bolts 15 are rotated and tightened to both sides of the upper ends 20 of the beam clamps. It is associated with a plurality of top teeth 22 at the edge to secure, fast and fasten the beam 2.

이와 같이, 본 발명은 상단톱니(22)를 구비함에 따라 가공시 재료비의 절감과 시공시 신속하고 안정된 작업이 가능하여 작업성과 안정성 향상의 효과를 제공한다.As described above, the present invention provides the effect of improving the workability and stability by reducing the material cost during processing and enabling fast and stable operation during construction by providing the upper teeth 22.

본 발명은 기재된 실시예에 한정되는 것은 아니고, 본 발명의 사상 및 범위를 벗어나지 않고 다양하게 수정 및 변형할 수 있음은 이 기술의 분야에서 통상의 지식을 가진 자에게 자명하다. 따라서 그러한 변형예 또는 수정예들은 본 발명의 특허청구범위에 속한다 해야 할 것이다.It is apparent to those skilled in the art that the present invention is not limited to the described embodiments, and that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, such modifications or variations will have to belong to the claims of the present invention.

도 1은 본 발명에 따른 빔 클램프를 나타내는 사시도,1 is a perspective view showing a beam clamp according to the present invention,

도 2는 본 발명에 따른 빔 클램프가 빔에 조립되는 과정을 나타내는 사시도,2 is a perspective view illustrating a process of assembling a beam clamp to a beam according to the present invention;

도 3은 본 발명에 따른 빔 클램프의 사용 상태도,3 is a state diagram used in the beam clamp according to the present invention,

도 4는 본 발명의 변형예에 따른 빔 클램프를 나타내는 정면도이다.4 is a front view showing a beam clamp according to a modification of the present invention.

* 도면의 주요부분에 대한 부호 설명 *Explanation of symbols on the main parts of the drawings

1: 빔 2: 조임나사1: beam 2: captive screw

3: 챤넬 4: 챤넬클램프3: Chanel 4: Chanel Clamp

5: 전선관 10: 하단부5: conduit 10: lower portion

11: 나선공 12: 하단톱니11: helix 12: lower teeth

15: 전산볼트 20: 상단부15: Computer bolt 20: Upper part

21: 관통공 22: 상단톱니21: through hole 22: upper tooth

Claims (2)

산업 현장의 천장재로 사용되는 빔(1)상에 고정하기 위해 조임나사(2)를 구비하는 빔 클램프에 있어서:In a beam clamp with a tightening screw (2) for fixing on a beam (1) used as a ceiling material for an industrial site: 상기 일측의 나선공(11)상에 체결되는 전산볼트(15)를 구비하고, 양측 가장자리에 다수의 하단톱니(12)가 형성되는 하단부(10); 및 A lower end 10 having a threaded bolt 15 fastened to the spiral hole 11 on one side, and having a plurality of lower teeth 12 formed at both edges thereof; And 상기 하단부(10)에 대응되게 형성되어 상기 조임나사(2)가 상단 중앙부에 형성된 관통공(21)상에 체결되고, 양측 가장자리에 다수의 상단톱니(22)가 형성되어 조임나사(2) 없이도 전산볼트(15)만으로 하부에서 체결하여 고정 가능한 상단부(20);를 구비하는 것을 특징으로 하는 빔 클램프.It is formed to correspond to the lower end 10, the tightening screw (2) is fastened to the through hole 21 formed in the upper center portion, a plurality of upper teeth 22 are formed at both edges without the tightening screw (2) Beam clamp, characterized in that it comprises ;; the upper end portion 20 that can be fixed by fastening only at the bottom with a computer bolt (15). 제 1항에 있어서,The method of claim 1, 상기 하단톱니(12)와 상단톱니(22)는 톱니의 각이 일방향으로 기울어지게 형성된 것을 특징으로 하는 빔 클램프.The lower tooth (12) and the upper tooth (22) is a beam clamp, characterized in that the angle of the tooth is formed to be inclined in one direction.
KR1020080060179A 2008-06-25 2008-06-25 Beam clamp KR100948662B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101456778B1 (en) * 2013-03-21 2014-10-31 오승주 Clamp for a pipe
US10396706B2 (en) * 2014-02-25 2019-08-27 John Powers, III Flat roof solar sensor structures and clamp
KR20220015659A (en) * 2020-07-31 2022-02-08 (주)하나 Removable fixture for h file for using the supporting force of h file

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KR101939200B1 (en) 2018-06-26 2019-01-17 주식회사 신도이엔지 Multi beam clamp
KR102097694B1 (en) 2019-04-02 2020-04-06 김상현 Beam clamp
KR102070238B1 (en) 2019-04-22 2020-01-29 김상문 Beam clamp with means that prevents from escaping
KR102070239B1 (en) 2019-05-29 2020-01-29 성화시스템챤넬(주) Ceiling beam structure for a building

Family Cites Families (4)

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Publication number Priority date Publication date Assignee Title
JP2000282409A (en) 1999-03-30 2000-10-10 Se Corp Method and device for bundling tendon
KR200221029Y1 (en) 2000-10-19 2001-04-16 정남열 Beam clamp
JP3588610B2 (en) * 2002-10-22 2004-11-17 多加志 今井 Piping support bracket
KR200338343Y1 (en) 2003-10-22 2004-01-13 이상선 Beam-Combining Clamp

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101456778B1 (en) * 2013-03-21 2014-10-31 오승주 Clamp for a pipe
US10396706B2 (en) * 2014-02-25 2019-08-27 John Powers, III Flat roof solar sensor structures and clamp
KR20220015659A (en) * 2020-07-31 2022-02-08 (주)하나 Removable fixture for h file for using the supporting force of h file

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