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A platform for research: civil engineering, architecture and urbanism
THREADED REINFORCING BAR COUPLING FOR DEFORMED REINFORCING BAR AND THREADED DEFORMED REINFORCING BAR
본 발명의 이형 철근의 나사식 철근 이음은 이형(異形) 철근인 한 쌍의 철근(1, 1)을 그 단부에 설치된 수나사부(1c)와 나사통(2)에서 접속한다. 각 철근(1)은, 소재가 되는 철제 선재(線材)의 롤 성형에 의해 외주면(外周面)의 돌조(突條, 1b)를 성형하면서 길이 방향의 일부에 다른 부분보다도 확경(擴徑)된 확경화부(擴徑化部)를 성형한다. 이 확경화부의 외경(外徑)은, 철근(1)의 상기 돌조(1a)를 포함하는 철근 최외경(最外徑, D1) 이하로 한다. 이 확경화부에 전조(轉造)에 의해 상기 수나사부 (1c)를 형성한다.
A threaded reinforcing bar coupling for a deformed reinforcing bar according to the present invention connects a pair of reinforcing bars (1, 1), which are deformed reinforcing bars, with male threaded portions (1c) provided at end portions of the reinforcing bars and a threaded cylinder (2). In each reinforcing bar (1), by roll forming on an iron wire rod which is a raw material, a projection (1b) on an outer peripheral surface is formed and a diameter enlarged portion which is larger in diameter than another portion is formed in a portion in a longitudinal direction. An outer diameter of the diameter enlarged portion is not larger than a reinforcing bar outermost diameter (D1) including the projection (1a) of the reinforcing bar (1). The male threaded portion (1c) is formed in the diameter enlarged portion by rolling.
THREADED REINFORCING BAR COUPLING FOR DEFORMED REINFORCING BAR AND THREADED DEFORMED REINFORCING BAR
본 발명의 이형 철근의 나사식 철근 이음은 이형(異形) 철근인 한 쌍의 철근(1, 1)을 그 단부에 설치된 수나사부(1c)와 나사통(2)에서 접속한다. 각 철근(1)은, 소재가 되는 철제 선재(線材)의 롤 성형에 의해 외주면(外周面)의 돌조(突條, 1b)를 성형하면서 길이 방향의 일부에 다른 부분보다도 확경(擴徑)된 확경화부(擴徑化部)를 성형한다. 이 확경화부의 외경(外徑)은, 철근(1)의 상기 돌조(1a)를 포함하는 철근 최외경(最外徑, D1) 이하로 한다. 이 확경화부에 전조(轉造)에 의해 상기 수나사부 (1c)를 형성한다.
A threaded reinforcing bar coupling for a deformed reinforcing bar according to the present invention connects a pair of reinforcing bars (1, 1), which are deformed reinforcing bars, with male threaded portions (1c) provided at end portions of the reinforcing bars and a threaded cylinder (2). In each reinforcing bar (1), by roll forming on an iron wire rod which is a raw material, a projection (1b) on an outer peripheral surface is formed and a diameter enlarged portion which is larger in diameter than another portion is formed in a portion in a longitudinal direction. An outer diameter of the diameter enlarged portion is not larger than a reinforcing bar outermost diameter (D1) including the projection (1a) of the reinforcing bar (1). The male threaded portion (1c) is formed in the diameter enlarged portion by rolling.
THREADED REINFORCING BAR COUPLING FOR DEFORMED REINFORCING BAR AND THREADED DEFORMED REINFORCING BAR
이형 철근의 나사식 철근 이음 장치 및 그의 나사 부착 이형 철근
2015-11-20
Patent
Electronic Resource
Korean
IPC:
B21B
Walzen von Metall
,
ROLLING OF METAL
/
B21H
MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
,
Herstellen besonderer Gegenstände aus Metall durch Walzen, z.B. Schrauben, Räder, Ringe, Büchsen, Kugeln
/
E04C
STRUCTURAL ELEMENTS
,
Bauelemente
/
F16B
DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES
,
Vorrichtungen zum Befestigen oder Sichern von Konstruktionselementen oder Maschinenteilen, z.B. Nägel, Bolzen, Schrauben, Sprengringe, Klemmen, Klammern oder Keile
| European Patent Office | 2016
THREADED REINFORCING BAR JOINT FOR DEFORMED REINFORCING BARS
| European Patent Office | 2016