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Patent Searching and Data


Title:
DAMPER DEVICE
Document Type and Number:
WIPO Patent Application WO/2004/013514
Kind Code:
A1
Abstract:
A damper device, wherein when a rotating shaft having wing parts projected therefrom is rotated in a cylinder in one direction, a check valve operates to apply a proper braking force thereto and when the rotating shaft is rotated in the other direction, the check valves does not operate to apply a slight braking force thereto, “a movement limiting flow passages for limiting the movement of viscous fluid between front and rear oil chambers divided by the wing parts” are formed between the inner wall surface of the cylinder and the wing parts and “a selective communication passage having the check valve” is formed between the vane parts and one side wall of two side walls forming the oil chambers so that the side wall and the check valve can be rotated according to the rotation of the vane parts, whereby such a problem that, since the check valve is rotated in contact with the inner wall of the cylinder, the check valve is worn by a use for long period, and the service life of the damper device can be increased.

Inventors:
FUKUZAWA EIJI (JP)
TOMURA TAKAYUKI (JP)
TANAKA NAOHISA (JP)
HAYASHI RYOSUKE (JP)
INOUE SEIICHIRO (JP)
TERADA YOSHIRO (JP)
KATO SATOSHI (JP)
Application Number:
PCT/JP2003/008949
Publication Date:
February 12, 2004
Filing Date:
July 14, 2003
Export Citation:
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Assignee:
TOTO LTD (JP)
FUKUZAWA EIJI (JP)
TOMURA TAKAYUKI (JP)
TANAKA NAOHISA (JP)
HAYASHI RYOSUKE (JP)
INOUE SEIICHIRO (JP)
TERADA YOSHIRO (JP)
KATO SATOSHI (JP)
International Classes:
A47K13/12; F16F9/14; (IPC1-7): F16F9/14; A47K13/12
Foreign References:
JPH05296267A1993-11-09
JPH0541499U1993-06-08
JPH0640485U1994-05-31
EP0997869A22000-05-03
Attorney, Agent or Firm:
Matsuo, Kenichiro (4-26 Imaizumi 2-chome, Chuo-k, Fukuoka-shi Fukuoka, JP)
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