LIQUID PRESSURE DEVICE - IMAI ATSUSHI

Title:

LIQUID PRESSURE DEVICE

Document Type and Number:

WIPO Patent Application WO/2004/070216

Kind Code:

A1

Abstract:

A liquid pressure nut (16) has a first load receiving member (17) being placed on a flange (13a) and a second load receiving member (18) being fixed to the first load receiving member (17) movably in the axial direction, wherein the second load receiving member (18) is coupled with a bolt (15) at the threaded hole (28). A pressure chamber (27) is provided between the first load receiving member (17) and the second load receiving member (18) and a seal ring (44) is fixed to the end part of the pressure chamber (27). The seal ring (44) has a first bend touching the first load receiving member (17), a second bend touching the second load receiving member (18) and a pressure receiving part continuous to the first and second bends, wherein a pressure being applied to the pressure receiving part is converted into a radial sealing force of the bends.

Inventors:

IMAI ATSUSHI (JP)
IMAI AKIRA (JP)
IMAI YUTAKA (JP)
GODA TATSUO (JP)

Application Number:

PCT/JP2003/005102

Publication Date:

August 19, 2004

Filing Date:

April 22, 2003

Export Citation:

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Assignee:

IMAI ATSUSHI (JP)
IMAI AKIRA (JP)
IMAI TOORU (JP)
IMAI YUTAKA (JP)
IMAI SATOSHI (JP)
GODA TATSUO (JP)

International Classes:

F16B1/00; F16B31/04; F16B37/00; (IPC1-7): F16B31/04

Domestic Patent References:

WO1998023885A1	1998-06-04
WO2000051791A1	2000-09-08

Foreign References:

JPS54108860U	1979-07-31
JPS63106960U	1988-07-11
JPS59180166A	1984-10-13
FR2274815A1	1976-01-09
US5527015A	1996-06-18
US4840526A	1989-06-20
JP3012347U	1995-06-13
JPS59155315U	1984-10-18
JPH02300508A	1990-12-12
US4062254A	1977-12-13

Other References: