KR20010069961A - Connector for steel bar - Google Patents

Connector for steel bar Download PDF

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Publication number
KR20010069961A
KR20010069961A KR1020010028173A KR20010028173A KR20010069961A KR 20010069961 A KR20010069961 A KR 20010069961A KR 1020010028173 A KR1020010028173 A KR 1020010028173A KR 20010028173 A KR20010028173 A KR 20010028173A KR 20010069961 A KR20010069961 A KR 20010069961A
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South Korea
Prior art keywords
fittings
joint
connector
lower parts
bolt
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KR1020010028173A
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Korean (ko)
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조영준
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조영준
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Priority to KR1020010028173A priority Critical patent/KR20010069961A/en
Publication of KR20010069961A publication Critical patent/KR20010069961A/en

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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/162Connectors or means for connecting parts for reinforcements
    • E04C5/163Connectors or means for connecting parts for reinforcements the reinforcements running in one single direction
    • E04C5/165Coaxial connection by means of sleeves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/04Clamping or clipping connections
    • F16B7/0406Clamping or clipping connections for rods or tubes being coaxial
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21FWORKING OR PROCESSING OF METAL WIRE
    • B21F15/00Connecting wire to wire or other metallic material or objects; Connecting parts by means of wire
    • B21F15/02Connecting wire to wire or other metallic material or objects; Connecting parts by means of wire wire with wire
    • B21F15/06Connecting wire to wire or other metallic material or objects; Connecting parts by means of wire wire with wire with additional connecting elements or material

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)

Abstract

PURPOSE: A connector joint of a deformed bar is provided to couple end parts of the steel bars by using the connector joint, thereby reducing working time securing the stability of a reinforced concrete structure, and reducing the manufacturing costs. CONSTITUTION: A connector joint of a deformed bar includes a pair of semicylindrical connector joints(2,2') divided into an upper joint and a lower joint, bolt holes(20,20') formed at the length directional center for coupling the upper and lower joints with a bolt(3), knob grooves dug at fixed gaps to insert knobs of deformed bars having different knob arrangement according to a manufacturing company and the thickness of a steel bar, set screw holes(21) for retightening formed at right and left of the lower joint in length direction to make one coupling style fastening the joint connecting bolt and tightening the steel bar with set screws(4), circular screw parts(5') formed at the outer surface of the right and left end parts of the upper and lower connector joints, and circular screw part covers(5) correspondingly coupled with the circular screw parts.

Description

이형 철근의 연결이음쇠{Connector for steel bar}Connector for steel rebar {Connector for steel bar}

본 발명은 철근연결 이음쇠에 관한 것으로 철근은 콘크리트와 함께 모든 구조물의 주재료로서 콘크리트가 높은 압축강도를 가지고는 있으나, 반면 인장강도에는 매우 취약하기 때문 에 철근을 사용 함으로서 일체화되에 외력에 저항할 수 있도록 하는 것이다.The present invention relates to reinforcing bar fittings. Reinforcing bars are concrete as the main material of all structures together with concrete, but concrete has high compressive strength, but is very vulnerable to tensile strength. To ensure that

그런데 철근의 길이는 운송 취급 사용상 제조 공정에서 일정길이로 절단되어져 공급되며 구조물의 사용목적에 따라 연결하여 사용하는 것이 대부분이며 이 경우 겹침이음, 가스압접 (용접), 별도의 철근이음 장치를 사용하는 방법이 있다.However, the length of the rebar is cut and supplied to a certain length in the manufacturing process during transportation and handling.In most cases, the rebar is connected and used according to the purpose of the structure.In this case, the overlapping joint, gas welding (welding), and a separate reinforcing bar joint are used. There is a way.

현장시공 사례는 겹침이음에 의한 방법이 주로 쓰이고 있으며, 근접된 철근과의 간격, 피복 두께의 정도, 철근의 직경 등 구조물의 여러 가지 조건에 따라 겹이음 길이에 대한 적용은 달라지며 이에 따라 철근의 소요량이 증가하게 된다.In the case of field construction, the method of overlapping joints is mainly used, and the application of the length of overlapping joints depends on various conditions of the structure, such as the distance between adjacent bars, the degree of covering thickness, and the diameter of the bars. The requirements will increase.

가스압접에 의한 철근 이음 방법은 압접시 표면과 단면부의 가공 및 가스 사용에 따른 가스안전, 산업안전관리, 화재위험성과 작업 후 비파괴검사 등 타 작업과 비교시 작업시간이 과다하게 소요 됨으로서 경제적 비용이 증가하게 된다.Rebar joint method by gas welding is economical because it requires excessive working time compared with other works such as gas safety, industrial safety management, fire risk and non-destructive inspection after work, when machining the surface and cross-section of press welding. Will increase.

철근 이음장치 경우는 이론에 치우쳐 이음장치의 제작비용이 비경제적이고 작업상 시간의 과다로 경제적 비용이 증가하는 문제점을 안고 있다.In the case of rebar joints, the manufacturing cost of the joints is not economical and the economic cost increases due to excessive working hours.

본 발명은 목적은 철근을 기계적인 방법에 의한 연결 이음쇠로 상기 서술한 철근 콘크리트의 목적상 외력에 의한 인장 및 압축응력에 대한 저항력이 충분해야 함은 물론 연결이음쇠의 부품 제작시 경제성이 확보되어야 하며, 시공상 작업이 단순 용이하여 시공성 및 공정성이 확보 되어야 한다.The object of the present invention is to connect the reinforcing bar by mechanical method to the reinforced concrete for the purpose of the above-mentioned reinforced concrete, the resistance to external forces and tensile stress should be sufficient as well as to secure the economics when manufacturing the parts of the connecting fitting In addition, construction and processability should be secured by simple and easy operation.

제1도는 이형철근의 마디모양 종류별 개략도1 is a schematic diagram of the bar shape of the deformed rebar

제2도는 철근연결 이음쇠의 분해사시도 이다2 is an exploded perspective view of rebar connection fittings

제3도는 철근연결 이음쇠의 결합상태사시도 이다3 is a perspective view of coupling state of reinforcing bar fittings

제4도는 철근연결 이음쇠의 단면도이다4 is a cross section of the rebar coupling fitting

제5도는 직경이 다른 철근 연결 이음쇠의 분해사시도 이다5 is an exploded perspective view of rebar connecting fittings of different diameters.

제6도는 직경이 다른 철근 연결 이음쇠의 결합상태사시도 이다6 is a perspective view of the coupling state of rebar coupling fittings of different diameters

〈도면의 주요부분에 대한 부호의 설명〉<Explanation of symbols for main parts of drawing>

1. 이형철근1. Deformed Rebar

2. 상부이음쇠2. Upper fitting

2'. 하부이음쇠2'. Bottom fitting

3. 상·하부 연결 이음쇠 연결 볼트3. Connection bolts for upper and lower connection

4.하부 이음쇠의 철근 재조임 셋나사4.Rebar tightening set screw on lower fitting

5. 둥근나사부 덮개카바5. Round screw cover

5'. 연결 이음쇠 좌·우 단부 외면의 둥근나사부5 '. Round fittings on the left and right ends

20. 상부 이음쇠의 상·하부 연결 볼트구멍20. Upper and lower connecting bolt holes of upper fitting

20' .하부 이음쇠의 상·하부 연결 볼트구멍20 '.Top and bottom connection bolt holes on bottom fitting

21. 하부 이음쇠의 셋나사구멍21.Thread screw hole on lower fitting

21' .재조임용 셋나사21 '.Tightening screws for retightening

본 발명을 도면 기준으로 설명한다.The present invention will be described with reference to the drawings.

제1도는 생산되고 있는 이형철근의 마디 모양이 철근 굵기 및 제조 공장에 따라 다소 다르게 생산되고 있는 것을 나타낸다.Figure 1 shows that the bar shape of the deformed rebar being produced is produced somewhat differently depending on the bar thickness and the manufacturing plant.

이에 따라 철근 연결 이음쇠의 몸체(2,2')의 내면에는 마디의 요철과 대응되는 마디 홈이 파여져 연결 시에는 철근과 밀착 되어진다.Accordingly, the inner groove of the body (2, 2 ') of the reinforcing bar connection is notched in the grooves corresponding to the unevenness of the bar is in close contact with the reinforcing bar.

제2도는 대표도로서 철근과 철근을 직선으로 연결시 연결 이음쇠의 분해 사시도로서 구성 부품으로는 상부와 하부 이음쇠(2,2')상부와 하부이음쇠의 연결볼트(3) 셋나사(4) 둥근 나사부 덮개카바(5)로 구성된다.2 is an exploded perspective view of connecting fittings when connecting reinforcing bars and reinforcing bars in a straight line. The components include connecting bolts (3) of upper and lower fittings (3) and three (4) rounded upper and lower fittings. It consists of a thread cover cover (5).

상부와 하부의 이음쇠(2,2')는 길이 방향으로 중심부가 막힌 원통형으로 이음쇠의 내부 면은 철근(1)과 동일한 마디 모양의 홈이 철근과 대응되게 파여져 있어 두개의 철근을 이음쇠 좌·우에서 밀어 넣은 후 마디 홈에 안착시킨 후 상·하부 이음쇠의 연결볼트(3)로 조임하여 체결한다.The upper and lower fittings (2, 2 ') are cylindrical in the longitudinal direction, and the inner surface of the fitting is grooved in the same node shape as that of the reinforcing bar (1) so as to correspond to the reinforcing bars. Push it in, and settle it in the groove of the node, and then tighten it with the connecting bolt (3) of the upper and lower fittings.

이 연결볼트 체결구멍은 상부 이음쇠의 볼트구멍(20)에는 나사산이 없고 하부 이음쇠의 볼트 구멍(20')에만 나사산이 있어 체결작업이 보다 더 용이하다.This connection bolt fastening hole has no thread in the bolt hole 20 of the upper fitting and only a thread in the bolt hole 20 'of the lower fitting so that the fastening operation is easier.

상·하부 이음쇠를 연결볼트(3)로 체결한 후에는 하부 이음쇠의 밑 부분에 좌우 두개의 셋나사 구멍(21)을 통하여 셋나사(4)로 철근을 재조임한다.After fastening the upper and lower fittings with the connecting bolts (3), re-tighten the rebar with the set screws (4) through the two left and right three screw holes (21) at the bottom of the lower fitting.

이 셋나사 구멍(21)은 철근 마디의 끝 부분에 만들어져 있어 재조임시 철근의 미끄럼을 재 방지하는 역할을 하며 철근의 굵기에 따라 소형 지름의 철근보다는 굵은 지름의 철근 연결시 사용한다.This three screw hole 21 is made at the end of the reinforcing bar, serves to prevent the re-slip of the rebar when re-tightening, and is used when connecting the reinforcement of the coarse diameter than the rebar of the small diameter according to the thickness of the rebar.

체결과 조임이 완료된 후에는 체결된 연결 이음쇠의 길이 방향으로 양단 외면에 둥근 나사부 덮개카바(5)로 체결하게 된다. 상·하부 연결 이음쇠(2,2')의 연결볼트(3) 체결 완료 후에는 연결 이음쇠의 양단부 외면(5')에 원주방향으로 병마개 나사 모양의 둥근 나사와 둥근 나사부 덮개 카바(5) 내면의 둥근 나사가 결합 체결되어 연결이음쇠의 상하 좌우 뒤틀림과 내부철근의 결속을 더욱 강화하게 되어 철근이 외력이 더욱 강하게 되어 소기의 목적을 달성할 수가 있다.After completion of the fastening and tightening is fastened with a round screw cover cover (5) on the outer surface of both ends in the longitudinal direction of the fastened connection fitting. After the coupling bolts (3) of the upper and lower coupling fittings (2, 2 ') have been tightened, round caps having the shape of a cap with screw caps in the circumferential direction on the outer surfaces (5') of both ends of the coupling fittings Round screw is combined to tighten up and down, left and right twist of the fitting and strengthen the binding of the internal reinforcing bar is stronger external force can achieve the desired purpose.

굵기가 서로 다른 철근을 연결하는 경우는 제5도의 직경이 다른 철근 연결 이음쇠의 분해사시도에 나타난 바와 같이 구성 및 작용은 제2도 대표도에서 서술한 내용과 동일하다.In the case of connecting reinforcing bars having different thicknesses, as shown in the exploded perspective view of the reinforcing bar fittings having different diameters in FIG. 5, the structure and operation are the same as those described in the representative diagram of FIG.

본 발명에 의한 철근 연결 이음쇠는 철근 콘크리트 구조물의 안정성 학보가 가능하며, 간단한 작업으로 시공성이 뛰어나 작업시간이 단축되고, 제작 생산비용이 저렴하여, 가치창출면에서 공사비의 절감, 공기단축으로 기업의 생산성이 향상되며, 부가적으로 설계 시공간에 불협화음 해소에도 기여할 수 있다.Reinforcing bar connection fittings according to the present invention is capable of studying the stability of reinforced concrete structures, excellent workability by simple work, shortening the working time, low production and production costs, in terms of value creation, construction cost reduction, air shortage Productivity is improved, and additionally, it can contribute to resolving dissonance in design time and space.

Claims (3)

상부와 하부로 나누어진 한 쌍의 반원통 형상의 연결 이음쇠(2,2')로 길이방향 중심부에는 상·하를 볼트(3)로 연결 체결하는 볼트구멍(20,20')과 상·하부 연결이음쇠(2,2')의 내측면에는 제조회사별, 철근굵기별 마디배열이 다소 다른 이형철근 마디와 끼워지도록 일정한 간격으로 형성된 마디홈이 파여져 있고, 하부이음쇠(2') 길이방향 좌·우에는 재조임용 셋나사 구멍(21)이 만들어져 있어 상·하부를 연결하기 위하여 이음새 연결볼트(3)를 채운 후 셋나사(4)로 철근을 조임하는 하나의 결합형이 만들어지며 상·하부 연결 이음쇠(2,2')의 좌·우단부의 외면에는 병마개 나사 모양의 둥근나사부(5')가 만들어져 있고 이 나사부와 대응되어 둥근나사부 덮개카바(5)가 체결조임되는 것으로 구성되는 것을 특징으로 하는 철근 연결이음쇠.A pair of semi-cylindrical coupling fittings (2, 2 ') divided into upper and lower parts, and bolt holes (20, 20') and upper and lower bolts for fastening the upper and lower parts with bolts (3) in the longitudinal center. On the inner side of the connecting fittings (2, 2 '), grooves are formed at regular intervals so as to fit with the rebar bars with different arrangements according to manufacturers and reinforcing bars, and lower fittings (2') in the longitudinal direction On the right side, a set screw hole 21 for retightening is made so that the joint connecting bolt 3 is filled in order to connect the upper and lower parts, and then a single coupling type for tightening the reinforcement with the set screw 4 is made. On the outer surface of the left and right ends of the fittings 2 and 2 ', a round cap portion 5' shaped like a cap is formed, and the round screw portion cover cover 5 is fastened to correspond to the screw portion. Rebar Connection Fittings. 상부와 하부로 나누어진 한 쌍의 반원통 형상의 연결 이음쇠(2,2')이나 굵기가 서로 다른 철근을 연결하는 이음쇠로 길이 방향 중심부에는 상·하를 볼트(3)로 연결 체결하는 볼트구멍(20,20')과 상·하부 연결이음쇠(2,2')의 내측면에는 제조회사별, 철근굵기별 마디배열이 다소 다른 이형철근 마디와 끼워지도록 일정한 간격으로 형성된 마디홈이 파여져 있고, 하부이음쇠(2')의 길이방향 좌·우에는 재조임용 셋나사 구멍(21)이 만들어져 있어 상·하부를 연결하기 위하여 이음새 연결볼트(3)를 채운 후 셋나사(4)로 철근을 조임하는 하나의 결합형이 만들어지며 상·하부 연결 이음쇠(2,2')의 좌·우단부의 외면에는 병마개 나사 모양의 둥근나사부(5')가 만들어져 있고 이 나사부와 대응되어 둥근나사부 덮개카바(5)가 체결 조임되는 것으로 구성되는 것을 특징으로 하는 철근 연결이음쇠.A pair of semi-cylindrical coupling fittings (2, 2 ') divided into upper and lower parts, or fittings for connecting reinforcing bars with different thicknesses. Bolt holes connecting upper and lower parts with bolts (3) in the longitudinal center (20,20 ') and the upper and lower connection fittings (2,2'), the inner grooves formed at regular intervals so as to fit the different reinforcing bar nodes with different bar arrangements by manufacturer and reinforcing bar thickness. A set screw hole 21 for retightening is made in the left and right lengths of the lower fitting 2 'so that the connecting bolt 3 is filled to connect the upper and lower parts, and then the reinforcing bar is tightened with the set screw (4). One coupling type is made, and on the outer surface of the left and right ends of the upper and lower connecting fittings (2, 2 '), a round cap part (5') is formed in the shape of a cap with a screw cap. Characterized in that is composed of fastening tightening It reinforced fitting connection to. 제1항과 제2항에서 상·하부 연결이음쇠 (2, 2')는 주조에 의한 성형, 가공이며, 덮개카바(5)는 프레스 성형과 주조 성형을 병행하여 생산하는 것을 특징으로 하는 철근 연결이음쇠.The upper and lower connection fittings 2 and 2 'of claim 1 and 2 are molding and processing by casting, and the cover cover 5 is produced by pressing and casting molding in parallel. yoke.
KR1020010028173A 2001-05-22 2001-05-22 Connector for steel bar KR20010069961A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040024686A (en) * 2002-09-16 2004-03-22 깨뱉시스템(주) Reinforcing bar coupler and the installation method using the same
KR100838962B1 (en) * 2006-12-21 2008-06-16 (주)바로건설기술 Connectting structure of steel bar
RU170990U1 (en) * 2015-08-10 2017-05-17 федеральное государственное бюджетное образовательное учреждение высшего образования "Донской государственный технический университет" (ДГТУ) DEVICE FOR CONNECTING REINFORCED RODS
CN109098355A (en) * 2018-08-30 2018-12-28 宁波联城住工科技有限公司 Grout sleeve and its installation method
KR102135480B1 (en) * 2019-10-01 2020-07-17 황성섭 rebar connecting coupler
KR102135481B1 (en) * 2019-10-01 2020-07-17 황성섭 rebar connecting coupler
KR102188019B1 (en) * 2019-10-01 2020-12-07 황성섭 rebar connecting coupler

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5075722U (en) * 1973-11-13 1975-07-02
JPH0552317U (en) * 1991-12-20 1993-07-13 有限会社小澤特殊技研 Deformed steel bar fittings
KR970054906U (en) * 1996-03-06 1997-10-13 로크산업주식회사 Rebar connector
KR19980068529U (en) * 1997-10-23 1998-12-05 정귀조 Rebar connection bracket
KR19980068522U (en) * 1997-09-11 1998-12-05 정귀조 Rebar connection bracket
KR19990066506A (en) * 1998-01-30 1999-08-16 배진우 Rebar Fittings and Rebar Fitting Methods
KR200163889Y1 (en) * 1999-07-29 2000-02-15 배명오 Splicing device for reinforcement steel bars

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5075722U (en) * 1973-11-13 1975-07-02
JPH0552317U (en) * 1991-12-20 1993-07-13 有限会社小澤特殊技研 Deformed steel bar fittings
KR970054906U (en) * 1996-03-06 1997-10-13 로크산업주식회사 Rebar connector
KR19980068522U (en) * 1997-09-11 1998-12-05 정귀조 Rebar connection bracket
KR19980068529U (en) * 1997-10-23 1998-12-05 정귀조 Rebar connection bracket
KR19990066506A (en) * 1998-01-30 1999-08-16 배진우 Rebar Fittings and Rebar Fitting Methods
KR200163889Y1 (en) * 1999-07-29 2000-02-15 배명오 Splicing device for reinforcement steel bars

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040024686A (en) * 2002-09-16 2004-03-22 깨뱉시스템(주) Reinforcing bar coupler and the installation method using the same
KR100838962B1 (en) * 2006-12-21 2008-06-16 (주)바로건설기술 Connectting structure of steel bar
WO2008075919A1 (en) * 2006-12-21 2008-06-26 Baro Construction Key-Technology Co., Ltd. Connectting structure of steel bar
RU170990U1 (en) * 2015-08-10 2017-05-17 федеральное государственное бюджетное образовательное учреждение высшего образования "Донской государственный технический университет" (ДГТУ) DEVICE FOR CONNECTING REINFORCED RODS
RU170990U9 (en) * 2015-08-10 2017-10-23 федеральное государственное бюджетное образовательное учреждение высшего образования "Донской государственный технический университет" (ДГТУ) DEVICE FOR CONNECTING REINFORCED RODS
CN109098355A (en) * 2018-08-30 2018-12-28 宁波联城住工科技有限公司 Grout sleeve and its installation method
KR102135480B1 (en) * 2019-10-01 2020-07-17 황성섭 rebar connecting coupler
KR102135481B1 (en) * 2019-10-01 2020-07-17 황성섭 rebar connecting coupler
KR102188019B1 (en) * 2019-10-01 2020-12-07 황성섭 rebar connecting coupler

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