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2. 发明公开

EP2977660A1 SNAP TAP MOLDING METHOD AND SNAP TAP ATTACHMENT TOOL USED IN SAID METHOD 有权
标题翻译：所采用的SNAP TAP模制方法和SNAP攻丝附件工具
公开(公告)号：EP2977660A1
公开(公告)日：2016-01-27
申请号：EP14770739.2
申请日：2014-03-24
申请人： Yone Corporation
发明人： YONEDA Toyohiko , YONEDA Tetsuzo , DOMAN Norio
IPC分类号： F16L1/024 , B23B41/08 , F16L41/06
CPC分类号： F16L41/06 , F16K1/12 , Y10T137/612
摘要： Provided is a snap tap forming method which can preventing a leakage of water through between an existing pipe and a regeneration pipe in a method of performing a branching work in a state where the supply of city water is not cut off. In the snap tap forming method, a partition wall 25 which is formed along a curvature of an outer peripheral wall surface of a water pipe 11 is hermetically brought into pressure contact with the outer peripheral wall of the water pipe 11 and is mounted on the outer peripheral wall of the water pipe 11 at a position which corresponds to an inflow opening portion of a gate valve 15 and at which a snap tap of the water pipe 11 is formed, and a center drill guide small hole 26 which is aligned with an axis of the snap tap 14 is formed in a center portion of partition wall 25 by drilling, and in forming the hole in the water pipe 11 by drilling, a center drill 45 of a drilling machine 43 which is inserted into and accommodated in the inside of a water flow sleeve of the gate valve 15 in an advanceable and retractable manner is inserted into the center drill guide small hole 26, and a water diverting port 62 is formed in the partition wall and a peripheral wall of the water pipe 11 using a core drill 46 by advancing the drilling machine 43 while estimating a drilling center and, thereafter, the drilling machine 43 is removed from the inside of a water flow passage 16 in the gate valve 15, and the snap tap is communicably connected to the water diverting port by a snap tap attaching tool 10 provided separately.
摘要翻译：本发明提供一种在不切断城市供水的状态下进行分支作业的方法中，能够防止现有配管与再生配管之间的水分泄漏的配管挤压成型方法。在分水龙头形成方法中，沿着水管11的外周壁表面的曲率形成的分隔壁25与水管11的外周壁气密地压力接触并且安装在外侧水管11的周壁在与闸阀15的流入开口部相对应的位置处形成有水管11的分接头，并且中心钻孔引导小孔26与轴线通过钻孔在分隔壁25的中心部分形成分水嘴14，并且在通过钻孔在水管11中形成孔时，钻孔机43的中心钻45插入并容纳在分隔壁25的内部将闸门阀15的流水套筒以能够进退的方式插入到中心钻孔引导件小孔26中，并且使用水管在分隔壁和水管11的周壁中形成转水口62 在推定钻孔中心的同时推进钻孔机43，然后从闸阀15内的水流通道16的内部取出钻孔机43，并且将分水龙头连通地连接到水转向通过单独提供的分水龙头附接工具10来进行。

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