公开(公告)号：US08118331B2

公开(公告)日：2012-02-21

申请号：US12131261

申请日：2008-06-02

申请人： Tamotsu Yamashita ,  Taihei Yokoyama

发明人： Tamotsu Yamashita ,  Taihei Yokoyama

IPC分类号： F16L47/00

CPC分类号： F16L13/147 ,  F16L13/007 ,  F16L13/013 ,  F16L47/24 ,  Y10T29/49936 ,  Y10T29/4994

摘要： A non-bolt joint structure comprising; a packing ring sealing between a receiving opening section and an insertion opening section; an engaging means provided with an inner circumference of the receiving opening section preventing a polyethylene pipe from disengaging from the receiving opening section by engaging with an outer circumferential surface of the polyethylene pipe; and a tubular metallic inner core fitting an inner circumference of the insertion opening section of the polyethylene pipe, wherein the inner core is plastically deformed to include a first bulge portion that its cross-sectional shape bulges toward an outward radial direction, a second bulge portion is formed so that the insertion opening section of the polyethylene pipe bulges toward the outward radial direction along the first bulge portion of the inner core, and the polyethylene pipe is prevented from disengaging by the engaging means engaging with the outer circumferential surface of the second bulge portion.

摘要翻译： 一种非螺栓接头结构，包括： 在接收开口部和插入开口部之间密封的密封圈; 接合装置，其设置有所述接收开口部的内周，防止聚乙烯管与所述聚乙烯管的外周面接合而从所述接收开口部脱离; 以及与所述聚乙烯管的插入开口部的内周配合的管状金属内芯，其特征在于，所述内芯塑性变形，包括其横截面形状向外径向膨胀的第一凸起部，第二凸起部 形成为使得聚乙烯管的插入开口部沿着内芯的第一凸起部朝向外径方向突出，并且通过与第二凸起的外周面接合的接合装置防止聚乙烯管脱离 一部分。

公开(公告)号：US20080303277A1

公开(公告)日：2008-12-11

申请号：US12131261

申请日：2008-06-02

申请人： Tamotsu YAMASHITA ,  Taihei Yokoyama

发明人： Tamotsu YAMASHITA ,  Taihei Yokoyama

IPC分类号： F16L13/14 ,  B21D39/00

CPC分类号： F16L13/147 ,  F16L13/007 ,  F16L13/013 ,  F16L47/24 ,  Y10T29/49936 ,  Y10T29/4994

摘要： A non-bolt joint structure comprising; a packing ring sealing between a receiving opening section and an insertion opening section; an engaging means provided with an inner circumference of the receiving opening section preventing a polyethylene pipe from disengaging from the receiving opening section by engaging with an outer circumferential surface of the polyethylene pipe; and a tubular metallic inner core fitting an inner circumference of the insertion opening section of the polyethylene pipe, wherein the inner core is plastically deformed to include a first bulge portion that its cross-sectional shape bulges toward an outward radial direction, a second bulge portion is formed so that the insertion opening section of the polyethylene pipe bulges toward the outward radial direction along the first bulge portion of the inner core, and the polyethylene pipe is prevented from disengaging by the engaging means engaging with the outer circumferential surface of the second bulge portion.

摘要翻译： 一种非螺栓接头结构，包括： 在接收开口部和插入开口部之间密封的密封圈; 接合装置，其设置有所述接收开口部的内周，防止聚乙烯管与所述聚乙烯管的外周面接合而从所述接收开口部脱离; 以及与所述聚乙烯管的插入开口部的内周配合的管状金属内芯，其特征在于，所述内芯塑性变形，包括其横截面形状向外径向膨胀的第一凸起部，第二凸起部 形成为使得聚乙烯管的插入开口部沿着内芯的第一凸起部朝向外径方向突出，并且通过与第二凸起的外周面接合的接合装置防止聚乙烯管脱离 一部分。