ROTATIONAL DAMPER AND VEHICLE SEAT WITH THE ROTATIONAL DAMPER

Title:

ROTATIONAL DAMPER AND VEHICLE SEAT WITH THE ROTATIONAL DAMPER

Document Type and Number:

WIPO Patent Application WO/2012/039182

Kind Code:

A1

Abstract:

[Problem] To provide a rotational damper having excellent response and exhibiting a damping effect only in one direction, and a vehicle seat provided with the rotational damper. [Solution] A rotational damper (10) comprising: a casing (13) provided therein with a partition wall section (12) provided with a flow path (11); a rotation body (16) rotatably disposed within the casing and provided with a pair of rotation blades (14, 15) for partitioning the inside of the casing into two chambers (R1, R2) in cooperation with the casing; a viscous fluid (L) contained within the casing; lip seals (17) mounted to the pair of rotation blades in such a manner that, only when the rotation body rotates and moves in one direction, the lip seals (17) expand in the direction perpendicular to the vertical direction to prevent the viscous fluid from flowing between the two chambers; and a lid body (18) for closing the opening of the casing.

Inventors:

OKIMURA AKIHIKO (JP)
HORITA NAOHIRO (JP)

Application Number:

PCT/JP2011/065452

Publication Date:

March 29, 2012

Filing Date:

July 06, 2011

Export Citation:

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Assignee:

OILES INDUSTRY CO LTD (JP)
OKIMURA AKIHIKO (JP)
HORITA NAOHIRO (JP)

International Classes:

F16F9/14; A47C1/024; B60N2/22; B60N2/30; B60N2/36

Foreign References:

JP2007198444A	2007-08-09
JP2003056620A	2003-02-26
JP2001050326A	2001-02-23
JP2006242318A	2006-09-14
JPH04282039A	1992-10-07
JPH0552228A	1993-03-02
JPH05263847A	1993-10-12
JPH07301272A	1995-11-14
JPH0534940A	1993-02-12
JPH07265148A	1995-10-17

Other References: