公开(公告)号：US20190301608A1

公开(公告)日：2019-10-03

申请号：US16465896

申请日：2017-10-25

Applicant: CKD CORPORATION

Inventor： Hideyuki TAKEDA ,  Hiroki IWATA ,  Hiroto YASUE ,  Shinjiro HARIYAMA

IPC: F16J15/06 ,  F16L47/06 ,  F16J15/34

Abstract: In a connected-part seal structure configured to couple a first connected part and a second connected part through a seal member, the taper angles of first and second inner pressure-contact tapered parts provided in the seal member are smaller than the taper angles of first and second inner tapered parts provided in the first and second connected parts. Thus, a pressure-contact force of first and second inside tapered pressure-contact allowances are larger as the inside tapered pressure-contact allowances are located closer to base end parts of first and second annular protrusions.

公开(公告)号：US20180156362A1

公开(公告)日：2018-06-07

申请号：US15807281

申请日：2017-11-08

Applicant: CKD CORPORATION

Inventor： Hideyuki TAKEDA ,  Hiroki IWATA ,  Hiroto YASUE ,  Yasunori NISHIMURA

IPC: F16L3/10 ,  F16L43/02 ,  F16L23/16 ,  F16L21/06 ,  F16L23/032 ,  F16L47/14 ,  F16L23/06

CPC classification number: F16L3/1075 ,  B25B27/10 ,  B25B27/16 ,  F16L3/1233 ,  F16L21/06 ,  F16L21/08 ,  F16L23/003 ,  F16L23/032 ,  F16L23/06 ,  F16L23/162 ,  F16L23/167 ,  F16L23/22 ,  F16L43/02 ,  F16L47/145

Abstract: A fluid-device connecting structure includes a first fluid device having a first connection part, a second fluid device having a second connection part, an annular seal member to connect the first and second connection parts, and a coupling member to keep the first and second connection parts in a connected state. The coupling member includes a first coupling segment and a second coupling segment, each including at one end a first hinge part or a second hinge part. The first and second connection parts each have a cylindrical outer shape. The first coupling segment has a U-like shape having an opening and surrounds the first and second connection parts over a range more than 180 degrees of an entire circumference of each of the first and second connection parts.