CONTROLLED, LIQUID SEALED-IN TYPE VIBRATION DAMPER

Title:

CONTROLLED, LIQUID SEALED-IN TYPE VIBRATION DAMPER

Document Type and Number:

WIPO Patent Application WO/2001/081786

Kind Code:

A1

Abstract:

A controlled, liquid sealed-in type vibration damper designed to have less effect caused by introducing pressure into an introduction pipe for switchable introduction of the atmospheric pressure and negative pressure into a switching chamber, and to make it possible to attain stabilized liquid sealability and assemblage. To this end, the device comprises a partition (10) internally provided with a partition main member (15) and a partition plate member (16), a main liquid chamber (7), a first auxiliary liquid chamber (8), a second auxiliary liquid chamber (9), and a switching chamber (12), the two auxiliary liquid chambers (8, 9) being in communication with the main liquid chamber (7) through orifices (13, 14), the partition main member (15) having a passageway (21) into which a switching introduction pipe (22) is force-fitted, the atmospheric pressure and negative pressure being switchingly introducible into the switching chamber (12), wherein a seal surface (23) abutting against a seal rubber layer (1a) on the inner periphery of a cylindrical barrel (3a) is formed around the open end of the passageway (21) in the outer peripheral surface of the partition main member (15), and a pressure receiving surface (25) wider than the other portion of the outer peripheral surface is formed on the opposite side of the device axis to the seal surface (23), making it possible to disperse the external force produced during the force-fitting of the introduction pipe.

Inventors:

TAKASHIMA YUKIO (JP)
HASHIMOTO TSUTOMU (JP)

Application Number:

PCT/JP2001/002872

Publication Date:

November 01, 2001

Filing Date:

April 02, 2001

Export Citation:

Click for automatic bibliography generation Help

Assignee:

TOYO TIRE & RUBBER CO (JP)
TAKASHIMA YUKIO (JP)
HASHIMOTO TSUTOMU (JP)

International Classes:

B60K5/12; F16F1/377; F16F13/10; F16F13/18; F16F13/26; (IPC1-7): F16F13/26

Foreign References:

JPH05118375A	1993-05-14
JPH06264956A	1994-09-20
JPH11173372A	1999-06-29
US5205546A	1993-04-27
DE4121939A1	1993-01-07
JP2001082534A	2001-03-27
JP2001140971A	2001-05-22

Other References: