Title:
JOINT FOR VESSEL VALVE
Document Type and Number:
Japanese Patent JP3358968
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent the other piece from co-rotating and reduce costs by forming an engaging recessed part on one piece and an opened hole part on the other piece, and providing an engaging projecting shaft member fitted to the opened hole part and fitted into the engaging recessed part and obstructing the other piece from followingly rotationally moving at the time of rotationally moving a box nut.
SOLUTION: One piece 10 is provided with an engaging recessed part 13, the other piece 20 is formed with a screw hole on the outer circumferential face of the engaging flange part 26, and a screw 23 is threadely engaged there. The engaging recessed part 13 is formed out of the engaging groove 13 of the extreme end side outer circumferential face 12 of the one piece 10, and the width size and the like of the engaging groove 13 are selected to be fitted so that the screw 23 can be moved in the axial direction but can not be rotated in the rotating direction. A gasket is held with the extreme end part of the outer circumferential face 22 of the other piece 20. For connecting together the pieces 10, 20, they are gotten butted against with each other, a box nut 40 is threadedly engaged with the thread part 11 of the one piece 10 side, and rotationally moved. In this case, the other piece 20 is obstructed from followingly rotatinally moving. Further the cost can be reduced by using a generally available screw.
Inventors:
Naoya Miyashita
Application Number:
JP9863697A
Publication Date:
December 24, 2002
Filing Date:
April 16, 1997
Export Citation:
Assignee:
Sanko Industry Co., Ltd.
International Classes:
F16L19/03; (IPC1-7): F16L19/03
Domestic Patent References:
| JP7103386A | ||||
| JP435662Y2 |