公开(公告)号：US11274446B2

公开(公告)日：2022-03-15

申请号：US16279390

申请日：2019-02-19

申请人： Akira Fukuda

发明人： Kozo Wakiyama ,  Keiji Hirai ,  Akira Fukuda

IPC分类号： E04C5/16 ,  E04C5/03 ,  E04C5/01 ,  B21H3/02 ,  B21F15/06

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

公开(公告)号：US20190177976A1

公开(公告)日：2019-06-13

申请号：US16279390

申请日：2019-02-19

申请人： Akira Fukuda

发明人： Kozo Wakiyama ,  Keiji Hirai ,  Akira Fukuda

IPC分类号： E04C5/01 ,  B21F15/06 ,  E04C5/16 ,  B21H3/02

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

公开(公告)号：USD743581S1

公开(公告)日：2015-11-17

申请号：US29463867

申请日：2014-03-21

申请人： Akira Fukuda

设计人： Kozo Wakiyama ,  Keiji Hirai ,  Akira Fukuda

公开(公告)号：US20220127838A1

公开(公告)日：2022-04-28

申请号：US17570987

申请日：2022-01-07

申请人： Akira Fukuda

发明人： Akira Fukuda ,  Kozo Wakiyama ,  Keiji Hirai

IPC分类号： E04B1/04 ,  E04B1/61 ,  E04C5/18

摘要： A reinforcing bar joint includes: cylindrical bodies each including an inner surface including a female thread part; joint members each including one end portion including a joint male thread part; and a connecting member configured to connect a pair of the joint members which face each other, such that the pair of the joint members are allowed to move in the longitudinal direction and in an orthogonal direction to the longitudinal direction. Each of the cylindrical bodies includes one end portion configured to threadedly engage with a reinforcing bar male thread part at an end portion of one of reinforcing bars, and the other end portion configured to threadedly engage with the joint male thread part at the one end portion of a corresponding one of the joint members.

公开(公告)号：US20150037090A1

公开(公告)日：2015-02-05

申请号：US14504217

申请日：2014-10-01

申请人： Akira Fukuda

发明人： Kozo Wakiyama ,  Keiji Hirai ,  Akira Fukuda

IPC分类号： F16B7/18 ,  B21H3/02 ,  B21B1/16

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加强筋联接器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棒上的辊轧成形，形成外周面上的突起（1b），并且形成直径比另一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。