SEAL STRUCTURE FOR FLOW-PATH CONNECTION PART

Title:

SEAL STRUCTURE FOR FLOW-PATH CONNECTION PART

Document Type and Number:

WIPO Patent Application WO/2013/089120

Kind Code:

A1

Abstract:

[Problem] To provide a seal structure for a flow-path connection part, the seal structure allowing the centers of a flow path and a gasket to be aligned easily without requiring high dimensional accuracy (with normal dimensional accuracy). [Solution] Provided is a seal structure for a flow-path connection part that includes a pair of flanges arranged in opposition to one another, the seal structure comprising: a gasket having protrusions provided symmetrically on the front and back of the gasket and on the outer periphery or in the vicinity of the outer periphery thereof; and flanges each having a receiving groove provided annularly in the connection surface. The seal structure for the flow-path connection part is characterized in that: the receiving groove is wider than the protrusion and has an arc-shaped deepest part against which the top part of the protrusion abuts; the top part of the protrusion forms a curved surface; and the curvature of the top part is greater than or equal to the curvature of the deepest part of the receiving groove. Also provided are a liquid ejection device and a liquid storage container each comprising said seal structure.

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Inventors:

IKUSHIMA KAZUMASA (JP)

Application Number:

PCT/JP2012/082147

Publication Date:

June 20, 2013

Filing Date:

December 12, 2012

Export Citation:

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Assignee:

MUSASHI ENGINEERING INC (JP)

International Classes:

F16J15/10; F16J13/06; F16L23/16

Foreign References:

US5947533A	1999-09-07
US5904382A	1999-05-18
JP4450711B2	2010-04-14
JP2001517287A	2001-10-02
JPH05172291A	1993-07-09
JPH0893261A	1996-04-09
JPH07158783A	1995-06-20
US2789844A	1957-04-23
JP4450711B2	2010-04-14
JPH07158783A	1995-06-20

Other References: