发明名称 |
PIPE JOINT WITH EARTHQUAKE-PROOF FUNCTION |
摘要 |
A pipe joint with earthquake-proof function is provided. A lock ring engages with an accommodating groove of a socket. A tapered surface converging toward the opening side of the socket is formed on at least one of a portion of the lock ring engaging the accommodating groove and a portion of the accommodating groove engaging the lock ring. When a disengagement prevention force in a pipe axial direction for preventing a spigot from being disengaged from the socket by the engagement is transmitted from an accommodating groove to the lock ring through the tapered surface, a line of action of a component force of the disengagement prevention force in a direction perpendicular to the tapered surface passes the opening side of the socket of a contacting point between a socket bottom end part of the lock ring and the outer periphery of the spigot along the outer surface of the spigot. <IMAGE>
|
申请公布号 |
EP1584854(A1) |
申请公布日期 |
2005.10.12 |
申请号 |
EP20030781016 |
申请日期 |
2003.12.22 |
申请人 |
KUBOTA CORPORATION |
发明人 |
TOSHIMA, T.,;YOKOMIZO, T.,;HARA, TAKESHI, |
分类号 |
F16L21/08;F16L27/12;F16L37/088;(IPC1-7):F16L21/08 |
主分类号 |
F16L21/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|