公开(公告)号：US20190093809A1

公开(公告)日：2019-03-28

申请号：US16199544

申请日：2018-11-26

Applicant: NITTO KOHKI CO., LTD.

Inventor： Akihiro WADA

IPC: F16L37/34 ,  F16L37/084

CPC classification number: F16L37/34 ,  F16L37/084 ,  F16L37/121 ,  F16L37/36 ,  F16L2201/10

Abstract: A pipe coupling includes a male coupling member detachably connected to a female coupling member by a chuck member of the female coupling member. The chuck member is disposed radially outside of a female coupling body to extend forward beyond a front end opening. The chuck member is displaceable in a longitudinal direction and also radially displaceable between a locking position where a locking groove locks a locking projection and an unlocking position where the locking groove is displaced radially outward from the locking position to unlock the locking projection. When the chuck member is displaced rearward from a temporarily connecting position to a connecting position in a state where the locking groove has locked the locking projection in the temporarily connecting position, the chuck member draws the male coupling member into a female-side passage to connect the male coupling member to the female coupling member.

公开(公告)号：US20170336005A1

公开(公告)日：2017-11-23

申请号：US15670235

申请日：2017-08-07

Applicant: NITTO KOHKI CO., LTD.

Inventor： Akihiro WADA

IPC: F16L37/23 ,  F16L37/32

CPC classification number: F16L37/23 ,  F16L37/32 ,  F16L37/52 ,  F16L55/1015 ,  F16L2201/20

Abstract: An emergency detachable pipe coupling configured to decouple a female coupling member and a male coupling member which are coupled together when an external force makes the male coupling member tilted at a predetermined angle relative to a female coupling member. When the male coupling member is tilted, a pressing surface of the male coupling member presses a to-be-pressed surface of a locking element restraining member of the female coupling member to displace the locking element restraining member to a release position where a locking element becomes displaceable to an unlocking position.

公开(公告)号：US20190093810A1

公开(公告)日：2019-03-28

申请号：US16199579

申请日：2018-11-26

Applicant: NITTO KOHKI CO., LTD.

Inventor： Akihiro WADA

IPC: F16L37/36 ,  F16L37/12 ,  F16L37/138 ,  F16L37/23

Abstract: A coupling member inhibits accidental pivoting of a lever for operating a movable member such as a chuck member or a valve. The coupling member has a chuck member mounted displaceably relative to a female coupling body between a temporarily connecting position (first position) and a connecting position (second position). The chuck member is operated by a lever that is pivotable relative to the female coupling body. When the lever is pivoted from a first pivoting position to a second pivoting position, the chuck member is displaced from the temporarily connecting position to the connecting position to connect an associated male coupling member. When the lever is in the second pivoting position, a lock member of the lever engages a lever holding member to inhibit the lever from pivoting toward the first pivoting position.