发明公开
EP2840197A1 THREADED REINFORCING BAR COUPLING FOR DEFORMED REINFORCING BAR, AND THREADED DEFORMED REINFORCING BAR
审中-公开
GEWINDEBEWEHRUNGSSTABKUPPLUNGFÜRDEFORMIERTEN BEWEHRUNGSSTAB UND DEFORMIERTER GEWINDEBEWEHRUNGSSTAB
- 专利标题： THREADED REINFORCING BAR COUPLING FOR DEFORMED REINFORCING BAR, AND THREADED DEFORMED REINFORCING BAR
- 专利标题（中）： GEWINDEBEWEHRUNGSSTABKUPPLUNGFÜRDEFORMIERTEN BEWEHRUNGSSTAB UND DEFORMIERTER GEWINDEBEWEHRUNGSSTAB
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申请号： EP13778512.7申请日： 2013-04-16
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公开(公告)号： EP2840197A1公开(公告)日： 2015-02-25
- 发明人: WAKIYAMA, Kozo , HIRAI, Keiji
- 申请人： Fukuda, Akira
- 申请人地址： 1-1-305 Sanwa-cho 2-chome Toyonaka-shi Osaka 561-0828 JP
- 专利权人： Fukuda, Akira
- 当前专利权人： Fukuda, Akira
- 当前专利权人地址： 1-1-305 Sanwa-cho 2-chome Toyonaka-shi Osaka 561-0828 JP
- 代理机构： Schön, Christoph
- 优先权： JP2012095213 20120419
- 国际公布： WO2013157531 20131024
- 主分类号： E04C5/18
- IPC分类号： E04C5/18 ; B21B1/08 ; B21H3/04 ; F16B5/02 ; F16B7/18
摘要：
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.
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