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    THREADED REINFORCING BAR COUPLING FOR DEFORMED REINFORCING BAR, AND THREADED DEFORMED REINFORCING BAR
    2.
    发明公开
    THREADED REINFORCING BAR COUPLING FOR DEFORMED REINFORCING BAR, AND THREADED DEFORMED REINFORCING BAR 审中-公开
    GEWINDEBEWEHRUNGSSTABKUPPLUNGFÜRDEFORMIERTEN BEWEHRUNGSSTAB UND DEFORMIERTER GEWINDEBEWEHRUNGSSTAB

    公开(公告)号：EP2840197A1

    公开(公告)日：2015-02-25

    申请号：EP13778512.7

    申请日：2013-04-16

    申请人： Fukuda, Akira

    发明人： WAKIYAMA, Kozo ,  HIRAI, Keiji

    IPC分类号： E04C5/18 ,  B21B1/08 ,  B21H3/04 ,  F16B5/02 ,  F16B7/18

    CPC分类号： F16B7/185 ,  B21B1/16 ,  B21B1/163 ,  B21H3/02 ,  B21H3/04 ,  E04C5/165 ,  F16B5/0275 ,  F16B7/182 ,  F16B33/02 ,  Y10T403/68

    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.

    摘要翻译： 根据本发明的用于变形钢筋的螺纹钢筋连接件将一对变形钢筋的钢筋（1,1）与设置在钢筋的端部处的外螺纹部分（1c）连接， 螺纹缸（2）。 在每个钢筋（1）中，通过在作为原料的铁线材上进行辊轧成形，形成外周面上的突起（1b），并且形成直径比其他部分大的直径扩大部分 纵向的一部分。 直径扩大部分的外径不大于包括钢筋（1）的突起（1a）的钢筋最外径（D1）。 外螺纹部（1c）通过轧制形成在直径扩大部分中。

    SCREW-TYPE REBAR JOINT STRUCTURE OF DEFORMED REBAR AND MANUFACTURING METHOD THEREOF
    4.
    发明公开
    SCREW-TYPE REBAR JOINT STRUCTURE OF DEFORMED REBAR AND MANUFACTURING METHOD THEREOF 审中-公开

    公开(公告)号：EP3527739A1

    公开(公告)日：2019-08-21

    申请号：EP17860388.2

    申请日：2017-10-11

    申请人： Fukuda, Akira

    发明人： WAKIYAMA, Kozo ,  HIRAI, Keiji ,  FUKUDA, Akira

    IPC分类号： E04C5/18 ,  B21F15/06 ,  B21H3/02 ,  E04G21/12

    摘要： A threaded reinforcing bar coupling structure (101) comprises a pair of reinforcing bars (102, 102) and a tubular coupler (104) connecting the pair of reinforcing bars (102, 102). Each of the reinforcing bars (102, 102) is a deformed reinforcing bar having spiral node portions (108) on an outer periphery of a reinforcing bar main body (106) having a round shaft shape. A cylindrical portion (114) with node portions (108) removed is formed on an end portion of the reinforcing bar (102), and a male threaded portion (112) is formed on the cylindrical portion (114). The male threaded portion (112) has hardness or tensile strength greater than that of a remaining portion of the reinforcing bar (102). The pair of reinforcing bars (102, 102) is connected by the screw tubular coupler (104) that is screwed onto the male threaded portions (112, 112).